diff --git a/.bumpversion.cfg b/.bumpversion.cfg new file mode 100644 index 0000000000..5177b8c4d0 --- /dev/null +++ b/.bumpversion.cfg @@ -0,0 +1,6 @@ +[bumpversion] +current_version = 80.0.0 +commit = True +tag = True + +[bumpversion:file:pyproject.toml] diff --git a/.codecov.yml b/.codecov.yml new file mode 100644 index 0000000000..bb829c41e5 --- /dev/null +++ b/.codecov.yml @@ -0,0 +1,12 @@ +comment: false +coverage: + status: + project: + default: + informational: true # Treat coverage info as informational only + threshold: 0.5% + patch: + default: + informational: true # Treat coverage info as informational only +github_checks: + annotations: false # Codecov may pollute the "files" diff view diff --git a/.coveragerc b/.coveragerc new file mode 100644 index 0000000000..be34df9d9d --- /dev/null +++ b/.coveragerc @@ -0,0 +1,27 @@ +[run] +omit = + # leading `*/` for pytest-dev/pytest-cov#456 + */.tox/* + + # local + */_vendor/* + */tools/* + */setuptools/_distutils/* + # See #4588 for integration tests coverage + */setuptools/tests/integration/* + */setuptools/tests/test_integration.py + +disable_warnings = + couldnt-parse + + # local + */_validate_pyproject/* # generated code, tested in `validate-pyproject` + +[report] +show_missing = True +exclude_also = + # Exclude common false positives per + # https://coverage.readthedocs.io/en/latest/excluding.html#advanced-exclusion + # Ref jaraco/skeleton#97 and jaraco/skeleton#135 + class .*\bProtocol\): + if TYPE_CHECKING: diff --git a/.editorconfig b/.editorconfig new file mode 100644 index 0000000000..304196f81e --- /dev/null +++ b/.editorconfig @@ -0,0 +1,19 @@ +root = true + +[*] +charset = utf-8 +indent_style = tab +indent_size = 4 +insert_final_newline = true +end_of_line = lf + +[*.py] +indent_style = space +max_line_length = 88 + +[*.{yml,yaml}] +indent_style = space +indent_size = 2 + +[*.rst] +indent_style = space diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml new file mode 100644 index 0000000000..27de01d019 --- /dev/null +++ b/.github/FUNDING.yml @@ -0,0 +1 @@ +tidelift: pypi/setuptools diff --git a/.github/ISSUE_TEMPLATE/bug-report.yml b/.github/ISSUE_TEMPLATE/bug-report.yml new file mode 100644 index 0000000000..ff45e687c9 --- /dev/null +++ b/.github/ISSUE_TEMPLATE/bug-report.yml @@ -0,0 +1,135 @@ +--- +name: 🐛 Bug report +description: >- + Create a report to help us improve when + something is not working correctly +title: '[BUG] ' +labels: +- bug +- Needs Triage + +body: +- type: markdown + attributes: + value: > + **Thank you for wanting to report a bug in setuptools!** + + + ⚠ + Verify first that your issue is not + [already reported on GitHub][issue search] and keep in mind and + keep in mind that we may have to keep the current behavior because + [every change breaks someone's workflow][XKCD 1172]. + We try to be mindful about this. + + Also test if the latest release and main branch are affected too. + + + If you are seeking community support, please consider + [starting a discussion][Discussions]. + + + Thank you for your collaboration! + + + [Discussions]: https://github.com/pypa/setuptools/discussions + + [issue search]: https://github.com/pypa/setuptools/search?q=is%3Aissue&type=issues + + [XKCD 1172]: https://xkcd.com/1172/ + +- type: markdown + attributes: + value: >- + **Environment** +- type: input + attributes: + label: setuptools version + placeholder: For example, setuptools==69.1.0 + description: >- + Please also test with the **latest version** of `setuptools`. + + Typically, this involves modifying `requires` in `[build-system]` of + [`pyproject.toml`](https://setuptools.pypa.io/en/latest/userguide/quickstart.html#basic-use), + not just updating `setuptools` using `pip`. + validations: + required: true +- type: input + attributes: + label: Python version + placeholder: For example, Python 3.10 + description: >- + Please ensure you are using a [supported version of Python](https://devguide.python.org/versions/#supported-versions). + + Setuptools does not support versions that have reached [`end-of-life`](https://devguide.python.org/versions/#unsupported-versions). + + Support for versions of Python under development (i.e. without a stable release) is experimental. + validations: + required: true +- type: input + attributes: + label: OS + placeholder: For example, Gentoo Linux, RHEL 8, Arch Linux, macOS etc. + validations: + required: true +- type: textarea + attributes: + label: Additional environment information + description: >- + Feel free to add more information about your environment here. + placeholder: >- + This is only happening when I run setuptools on my fridge's patched firmware 🤯 + +- type: textarea + attributes: + label: Description + description: >- + A clear and concise description of what the bug is. + placeholder: >- + I tried doing X and I expected it to result in Y because the docs + mentioned Z but what happened next what totally unexpected! + And here's why... + validations: + required: true + +- type: textarea + attributes: + label: Expected behavior + description: >- + A clear and concise description of what you expected to happen. + placeholder: >- + I tried doing X and I expected it to result in Y. I'm confused... + validations: + required: true + +- type: textarea + attributes: + label: How to Reproduce + description: >- + Describe the steps to reproduce this bug. + + Please try to create a [minimal reproducer](https://stackoverflow.com/help/minimal-reproducible-example), + and avoid things like "see the steps in the CI logs". + placeholder: | + 1. Clone a simplified example: `git clone ...` + 2. Create a virtual environment for isolation with `...` + 2. Build the project with setuptools via '...' + 2. Then run '...' + 3. An error occurs. + validations: + required: true + +- type: textarea + attributes: + label: Output + description: >- + Paste the output of the steps above, including the commands + themselves and setuptools' output/traceback etc. + value: | + ```console + + ``` + validations: + required: true + +... diff --git a/.github/ISSUE_TEMPLATE/config.yml b/.github/ISSUE_TEMPLATE/config.yml new file mode 100644 index 0000000000..ebc2d3399e --- /dev/null +++ b/.github/ISSUE_TEMPLATE/config.yml @@ -0,0 +1,12 @@ +contact_links: +- name: 🤔 Have questions or need support? + url: https://github.com/pypa/setuptools/discussions + about: This is a place for the community to exchange ideas and recipes +- name: 💬 Discourse + url: https://discuss.python.org/c/packaging + about: | + Please ask typical Q&A here: general ideas for Python packaging, + questions about structuring projects and so on +- name: 💬 Discord (chat) + url: https://discord.com/invite/pypa + about: Chat with devs diff --git a/.github/ISSUE_TEMPLATE/distutils-deprecation.yml b/.github/ISSUE_TEMPLATE/distutils-deprecation.yml new file mode 100644 index 0000000000..7ac1f8bbb9 --- /dev/null +++ b/.github/ISSUE_TEMPLATE/distutils-deprecation.yml @@ -0,0 +1,103 @@ +--- +name: 📇 Distutils Deprecation Report +description: >- + Report a use-case affected by the deprecation of distutils +labels: +- distutils deprecation +- Needs Triage +projects: +- pypa/6 +body: +- type: markdown + attributes: + value: > + So you've encountered an issue with the deprecation of distutils. + + First, sorry for the inconvenience while we work to untangle the + legacy which is setuptools/distutils. Our goal is to ensure that + the vast majority of use cases are satisfied prior to removing + the legacy support. + + Please check the + [existing reports](https://github.com/pypa/setuptools/issues?q=label%3A%22distutils+deprecation%22+) + to see if the affecting condition has been reported previously. + +- type: markdown + attributes: + value: >- + **Environment** +- type: input + attributes: + label: setuptools version + placeholder: For example, setuptools==69.1.0 + description: >- + Please also test with the **latest version** of `setuptools`. + + Typically, this involves modifying `requires` in `[build-system]` of + [`pyproject.toml`](https://setuptools.pypa.io/en/latest/userguide/quickstart.html#basic-use), + not just updating `setuptools` using `pip`. + validations: + required: true +- type: input + attributes: + label: Python version + placeholder: For example, Python 3.10 + description: >- + Please ensure you are using a [supported version of Python](https://devguide.python.org/versions/#supported-versions). + + Setuptools does not support versions that have reached [`end-of-life`](https://devguide.python.org/versions/#unsupported-versions). + + Support for versions of Python under development (i.e. without a stable release) is experimental. + validations: + required: true +- type: input + attributes: + label: OS + placeholder: For example, Gentoo Linux, RHEL 8, Arch Linux, macOS etc. + validations: + required: true +- type: textarea + attributes: + label: Additional environment information + description: >- + Feel free to add more information about your environment here. + placeholder: >- + This is only happening when I run setuptools on my fridge's patched firmware 🤯 + +- type: textarea + attributes: + label: Description + description: >- + A clear and concise description of the circumstances leading to the warning. + validations: + required: true + +- type: textarea + attributes: + label: How to Reproduce + description: >- + Describe the steps to reproduce the warning. + + Please try to create a [minimal reproducer](https://stackoverflow.com/help/minimal-reproducible-example), + and avoid things like "see the steps in the CI logs". + placeholder: | + 1. Clone a simplified example: `git clone ...` + 2. Create a virtual environment for isolation with `...` + 2. Build the project with setuptools via '...' + 2. Then run '...' + 3. An error occurs. + validations: + required: true + +- type: textarea + attributes: + label: Other detail + description: >- + Paste the output of the steps above, including the commands + themselves and setuptools' output/traceback etc. + value: | + ```console + + ``` + +... diff --git a/.github/ISSUE_TEMPLATE/documentation-report.yml b/.github/ISSUE_TEMPLATE/documentation-report.yml new file mode 100644 index 0000000000..238ce89650 --- /dev/null +++ b/.github/ISSUE_TEMPLATE/documentation-report.yml @@ -0,0 +1,91 @@ +--- +name: 📝 Documentation Report +title: '[Docs] ' +description: Ask us about docs +labels: +- documentation +- Needs Triage + +body: +- type: markdown + attributes: + value: > + **Thank you for wanting to report a problem with setuptools + documentation!** + + + Please fill out your suggestions below. If the problem seems + straightforward, feel free to go ahead and + submit a pull request instead! + + + ⚠ + Verify first that your issue is not [already reported on + GitHub][issue search]. + + + If you are seeking community support, please consider + [starting a discussion][Discussions]. + + + Thank you for your collaboration! + + + [issue search]: https://github.com/pypa/setuptools/search?q=is%3Aissue&type=issues + + [Discussions]: https://github.com/pypa/setuptools/discussions + +- type: textarea + attributes: + label: Summary + description: > + Explain the problem briefly below, add suggestions to wording + or structure. + + + **HINT:** Did you know the documentation has a `View on GitHub` + link on every page? Feel free to use it to start a pull request + right from the GitHub UI! + placeholder: >- + I was reading the setuptools documentation of version X and I'm + having problems understanding Y. It would be very helpful if that + got rephrased as Z. + validations: + required: true + +- type: textarea + attributes: + label: OS / Environment + description: >- + Provide all relevant information below, e.g. OS version, + browser, etc. + placeholder: Fedora 33, Firefox etc. + + +- type: textarea + attributes: + label: Additional Information + description: > + Describe how this improves the documentation, e.g. before/after + situation or screenshots. + + + **HINT:** You can paste https://gist.github.com links for larger files. + placeholder: >- + When the improvement is applied, it makes it more straightforward + to understand X. + validations: + required: true + + +- type: checkboxes + attributes: + label: Code of Conduct + description: | + Read the [PSF Code of Conduct][CoC] first. + + [CoC]: https://github.com/pypa/.github/blob/main/CODE_OF_CONDUCT.md + options: + - label: I agree to follow the PSF Code of Conduct + required: true +... diff --git a/.github/ISSUE_TEMPLATE/feature-request.yml b/.github/ISSUE_TEMPLATE/feature-request.yml new file mode 100644 index 0000000000..7bd476818e --- /dev/null +++ b/.github/ISSUE_TEMPLATE/feature-request.yml @@ -0,0 +1,104 @@ +--- +name: ✨ Feature request +description: Suggest an idea for setuptools +title: '[FR] ' +labels: +- enhancement +- Needs Triage + +body: +- type: markdown + attributes: + value: > + **Thank you for wanting to suggest a feature for setuptools!** + + + 💡 + Before you go ahead with your request, please first consider if it + would be useful for majority of the setuptools users. As a general + rule of thumb, any feature that is only of interest to a small sub + group should be implemented in a third-party plugin or maybe even + just your project alone. Be mindful of the fact that the core + setuptools features have a broad impact. + + +
+ + ❗ Every change breaks someone's workflow. + + + + [![❗ Every change breaks someone's workflow.](https://imgs.xkcd.com/comics/workflow.png) + ](https://xkcd.com/1172/) +
+ + + ⚠ + Verify first that your idea is not [already requested on GitHub][issue search]. + + + + [issue search]: https://github.com/pypa/setuptools/search?q=is%3Aissue&type=issues + +- type: textarea + attributes: + label: What's the problem this feature will solve? + description: >- + What are you trying to do, that you are unable to achieve + with setuptools as it currently stands? + placeholder: >- + I'm trying to do X and I'm missing feature Y for this to be + easily achievable. + validations: + required: true + +- type: textarea + attributes: + label: Describe the solution you'd like + description: > + Clear and concise description of what you want to happen. + + + Provide examples of real world use cases that this would enable + and how it solves the problem described above. + placeholder: >- + When I do X, I want to achieve Y in a situation when Z. + validations: + required: true + +- type: textarea + attributes: + label: Alternative Solutions + description: >- + Have you tried to workaround the problem using other tools? Or a + different approach to solving this issue? Please elaborate here. + placeholder: >- + I tried doing X, Y and Z. But they are suboptimal because of P. + +- type: textarea + attributes: + label: Additional context + description: > + Add any other context, links, etc. about the feature here. + Describe how the feature would be used, why it is needed and what + it would solve. + + + **HINT:** You can paste https://gist.github.com links for + larger files. + placeholder: >- + I asked on https://stackoverflow.com/.... and the community + advised me to do X, Y and Z. + + +- type: checkboxes + attributes: + label: Code of Conduct + description: | + Read the [PSF Code of Conduct][CoC] first. + + [CoC]: https://github.com/pypa/.github/blob/main/CODE_OF_CONDUCT.md + options: + - label: I agree to follow the PSF Code of Conduct + required: true +... diff --git a/.github/pull_request_template.md b/.github/pull_request_template.md new file mode 100644 index 0000000000..c4458c9825 --- /dev/null +++ b/.github/pull_request_template.md @@ -0,0 +1,18 @@ + + + +## Summary of changes + + + +Closes + +### Pull Request Checklist +- [ ] Changes have tests +- [ ] News fragment added in [`newsfragments/`]. + _(See [documentation][PR docs] for details)_ + + +[`newsfragments/`]: https://github.com/pypa/setuptools/tree/master/newsfragments +[PR docs]: +https://setuptools.pypa.io/en/latest/development/developer-guide.html#making-a-pull-request diff --git a/.github/workflows/ci-sage.yml b/.github/workflows/ci-sage.yml new file mode 100644 index 0000000000..3da7141573 --- /dev/null +++ b/.github/workflows/ci-sage.yml @@ -0,0 +1,94 @@ +name: Run Sage CI for Linux + +## This GitHub Actions workflow provides: +## +## - portability testing, by building and testing this project on many platforms +## +## - continuous integration, by building and testing other software +## that depends on this project. +## +## It runs on every push of a tag to the GitHub repository. +## +## The testing can be monitored in the "Actions" tab of the GitHub repository. +## +## After all jobs have finished (or are canceled) and a short delay, +## tar files of all logs are made available as "build artifacts". +## +## This GitHub Actions workflow uses the portability testing framework +## of SageMath (https://www.sagemath.org/). For more information, see +## https://doc.sagemath.org/html/en/developer/portability_testing.html + +## The workflow consists of two jobs: +## +## - First, it builds a source distribution of the project +## and generates a script "update-pkgs.sh". It uploads them +## as a build artifact named upstream. +## +## - Second, it checks out a copy of the SageMath source tree. +## It downloads the upstream artifact and replaces the project's +## package in the SageMath distribution by the newly packaged one +## from the upstream artifact, by running the script "update-pkgs.sh". +## Then it builds a small portion of the Sage distribution. +## +## Many copies of the second step are run in parallel for each of the tested +## systems/configurations. + +on: + push: + tags: + - '*' + pull_request: + paths: + - .github/workflows/ci-sage.yml + workflow_dispatch: + # Allow to run manually + +permissions: + contents: read + +env: + # Ubuntu packages to install so that the project's "setup.py sdist" can succeed + DIST_PREREQ: python3 + # Name of this project in the Sage distribution + SPKG: setuptools + +jobs: + + dist: + runs-on: ubuntu-latest + steps: + - name: Check out ${{ env.SPKG }} + uses: actions/checkout@v4 + with: + path: build/pkgs/${{ env.SPKG }}/src + - name: Install prerequisites + run: | + sudo DEBIAN_FRONTEND=noninteractive apt-get update + sudo DEBIAN_FRONTEND=noninteractive apt-get install $DIST_PREREQ + python3 -m pip install build + - name: Run make dist, prepare upstream artifact + run: | + (cd build/pkgs/${{ env.SPKG }}/src && python3 -m build --sdist) \ + && mkdir -p upstream && cp build/pkgs/${{ env.SPKG }}/src/dist/*.tar.gz upstream/${{ env.SPKG }}-git.tar.gz \ + && echo "sage-package create ${{ env.SPKG }} --pypi --source normal --type standard; sage-package create ${{ env.SPKG }} --version git --tarball ${{ env.SPKG }}-git.tar.gz --type=standard" > upstream/update-pkgs.sh \ + && if [ -n "${{ env.REMOVE_PATCHES }}" ]; then echo "(cd ../build/pkgs/${{ env.SPKG }}/patches && rm -f ${{ env.REMOVE_PATCHES }}; :)" >> upstream/update-pkgs.sh; fi \ + && ls -l upstream/ + - uses: actions/upload-artifact@v3 + with: + path: upstream + name: upstream + + linux: + # https://github.com/sagemath/sage/blob/develop/.github/workflows/docker.yml + uses: sagemath/sage/.github/workflows/docker.yml@develop + with: + # Sage distribution packages to build + targets: setuptools pyzmq + # Standard setting: Test the current beta release of Sage: + sage_repo: sagemath/sage + sage_ref: develop + upstream_artifact: upstream + # We prefix the image name with the SPKG name ("setuptools-") to avoid the error + # 'Package "sage-docker-..." is already associated with another repository.' + docker_push_repository: ghcr.io/${{ github.repository }}/setuptools- + needs: [dist] diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml new file mode 100644 index 0000000000..52f11528ae --- /dev/null +++ b/.github/workflows/main.yml @@ -0,0 +1,281 @@ +name: tests + +on: + merge_group: + push: + branches-ignore: + # temporary GH branches relating to merge queues (jaraco/skeleton#93) + - gh-readonly-queue/** + tags: + # required if branches-ignore is supplied (jaraco/skeleton#103) + - '**' + pull_request: + workflow_dispatch: + +concurrency: + group: >- + ${{ github.workflow }}- + ${{ github.ref_type }}- + ${{ github.event.pull_request.number || github.sha }} + cancel-in-progress: true + +permissions: + contents: read + +env: + # Environment variable to support color support (jaraco/skeleton#66) + FORCE_COLOR: 1 + + # Suppress noisy pip warnings + PIP_DISABLE_PIP_VERSION_CHECK: 'true' + PIP_NO_WARN_SCRIPT_LOCATION: 'true' + + # Ensure tests can sense settings about the environment + TOX_OVERRIDE: >- + testenv.pass_env+=GITHUB_*,FORCE_COLOR + + +jobs: + test: + strategy: + # https://blog.jaraco.com/efficient-use-of-ci-resources/ + matrix: + python: + - "3.9" + - "3.13" + platform: + - ubuntu-latest + - macos-latest + - windows-latest + include: + - python: "3.10" + platform: ubuntu-latest + - python: "3.11" + platform: ubuntu-latest + - python: "3.12" + platform: ubuntu-latest + - python: "3.14" + platform: ubuntu-latest + - python: pypy3.10 + platform: ubuntu-latest + distutils: stdlib + - platform: ubuntu-latest + python: "3.10" + distutils: stdlib + runs-on: ${{ matrix.platform }} + continue-on-error: ${{ matrix.python == '3.14' || matrix.python == 'pypy3.10' }} + # XXX: pypy seems to be flaky with unrelated tests in #6345 + env: + SETUPTOOLS_USE_DISTUTILS: ${{ matrix.distutils || 'local' }} + timeout-minutes: 75 + steps: + - uses: actions/checkout@v4 + - name: Install build dependencies + # Install dependencies for building packages on pre-release Pythons + # jaraco/skeleton#161 + if: matrix.python == '3.14' && matrix.platform == 'ubuntu-latest' + run: | + sudo apt update + sudo apt install -y libxml2-dev libxslt-dev + - name: Setup Python + id: python-install + uses: actions/setup-python@v5 + with: + python-version: ${{ matrix.python }} + allow-prereleases: true + env: + # Workaround for actions/setup-python#981 (env var only modified for this specific step) + SETUPTOOLS_USE_DISTUTILS: ${{ matrix.platform == 'macos-latest' && matrix.python == '3.9' && 'stdlib' || matrix.distutils || 'local' }} + - uses: actions/cache@v4 + id: cache + with: + path: setuptools/tests/config/downloads/*.cfg + key: >- + ${{ hashFiles('setuptools/tests/config/setupcfg_examples.txt') }}- + ${{ hashFiles('setuptools/tests/config/downloads/*.py') }} + - name: Populate download cache + if: steps.cache.outputs.cache-hit != 'true' + working-directory: setuptools/tests/config + run: python -m downloads.preload setupcfg_examples.txt + - name: Adjust env vars + shell: bash + run: | + echo 'PIPX_DEFAULT_PYTHON=${{ steps.python-install.outputs.python-path }}' >> $GITHUB_ENV + - name: Pre-build distributions for test + shell: bash + run: | + rm -rf dist + # workaround for pypa/setuptools#4333 + pipx run --pip-args 'pyproject-hooks!=1.1' build + echo "PRE_BUILT_SETUPTOOLS_SDIST=$(ls dist/*.tar.gz)" >> $GITHUB_ENV + echo "PRE_BUILT_SETUPTOOLS_WHEEL=$(ls dist/*.whl)" >> $GITHUB_ENV + rm -rf setuptools.egg-info # Avoid interfering with the other tests + - name: Workaround for unreleased PyNaCl (pyca/pynacl#805) + if: contains(matrix.python, 'pypy') + run: echo "SETUPTOOLS_ENFORCE_DEPRECATION=0" >> $GITHUB_ENV + - name: Install tox + run: python -m pip install tox + - name: Run + run: tox + - name: Create coverage report + if: hashFiles('.coverage') != '' # Rudimentary `file.exists()` + run: pipx run coverage xml --ignore-errors + - name: Publish coverage + if: hashFiles('coverage.xml') != '' # Rudimentary `file.exists()` + uses: codecov/codecov-action@v4 + with: + flags: >- # Mark which lines are covered by which envs + CI-GHA, + ${{ github.job }}, + OS-${{ runner.os }}, + VM-${{ matrix.platform }}, + Py-${{ steps.python-install.outputs.python-version }} + token: ${{ secrets.CODECOV_TOKEN }} + + collateral: + strategy: + fail-fast: false + matrix: + job: + - diffcov + - docs + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v4 + with: + fetch-depth: 0 + - name: Setup Python + uses: actions/setup-python@v5 + with: + python-version: 3.x + - name: Install tox + run: python -m pip install tox + - name: Eval ${{ matrix.job }} + run: tox -e ${{ matrix.job }} + + check: # This job does nothing and is only used for the branch protection + if: always() + + needs: + - integration-test + - test + - collateral + - test_cygwin + + runs-on: ubuntu-latest + + steps: + - name: Decide whether the needed jobs succeeded or failed + uses: re-actors/alls-green@release/v1 + with: + allowed-skips: integration-test + jobs: ${{ toJSON(needs) }} + + test_cygwin: + strategy: + matrix: + python: + - 39 + platform: + - windows-latest + runs-on: ${{ matrix.platform }} + timeout-minutes: 75 + steps: + - uses: actions/checkout@v4 + - name: Install Cygwin with Python + uses: cygwin/cygwin-install-action@v4 + with: + platform: x86_64 + packages: >- + python${{ matrix.python }}, + python${{ matrix.python }}-devel, + python${{ matrix.python }}-pip, + gcc-core, + git, + - name: Record the currently selected Python version + id: python-install + # NOTE: This roughly emulates what `actions/setup-python` provides + # NOTE: except the action gets the version from the installation path + # NOTE: on disk and we get it from runtime. + run: | + python -c 'import platform; print("python-version=" + platform.python_version())' >> ${GITHUB_OUTPUT} + shell: C:\cygwin\bin\env.exe CYGWIN_NOWINPATH=1 CHERE_INVOKING=1 C:\cygwin\bin\bash.exe -leo pipefail -o igncr {0} + - name: Install tox using pip + shell: C:\cygwin\bin\env.exe CYGWIN_NOWINPATH=1 CHERE_INVOKING=1 C:\cygwin\bin\bash.exe -leo pipefail -o igncr {0} + run: | + # Workaround for https://github.com/pypa/setuptools/issues/4831 + python -m pip install tox + - name: Run tests + shell: C:\cygwin\bin\env.exe CYGWIN_NOWINPATH=1 CHERE_INVOKING=1 C:\cygwin\bin\bash.exe -leo pipefail -o igncr {0} + run: | + git config --global --add safe.directory "$(cygpath -u "${{ github.workspace }}")" # workaround for #3408 + echo "$(cygpath -u "${{ github.workspace }}")" # for debugging purposes + python -m tox + - name: Create coverage report + if: hashFiles('.coverage') != '' # Rudimentary `file.exists()` + run: | + python -m pip install coverage + python -m coverage xml --ignore-errors + shell: C:\cygwin\bin\env.exe CYGWIN_NOWINPATH=1 CHERE_INVOKING=1 C:\cygwin\bin\bash.exe -leo pipefail -o igncr {0} + - name: Publish coverage + if: hashFiles('coverage.xml') != '' # Rudimentary `file.exists()` + uses: codecov/codecov-action@v4 + with: + flags: >- # Mark which lines are covered by which envs + CI-GHA, + ${{ github.job }}, + OS-${{ runner.os }}, + VM-${{ matrix.platform }}, + Py-${{ steps.python-install.outputs.python-version }} + token: ${{ secrets.CODECOV_TOKEN }} + + integration-test: + needs: test + if: github.event_name == 'workflow_dispatch' || (github.event_name == 'push' && contains(github.ref, 'refs/tags/')) + # To avoid long times and high resource usage, we assume that: + # 1. The setuptools APIs used by packages don't vary too much with OS or + # Python implementation + # 2. Any circumstance for which the previous assumption is not valid is + # already tested via unit tests (or other tests not classified here as + # "integration") + # With that in mind, the integration tests can run for a single setup + runs-on: ubuntu-latest + timeout-minutes: 75 + steps: + - uses: actions/checkout@v4 + - name: Install OS-level dependencies + run: | + sudo apt-get update + sudo apt-get install build-essential gfortran libopenblas-dev libyaml-dev + - name: Setup Python + uses: actions/setup-python@v5 + with: + # Use a release that is not very new but still have a long life: + python-version: "3.10" + - name: Install tox + run: | + python -m pip install tox + - name: Run integration tests + run: tox -e integration + + release: + permissions: + contents: write + needs: + - check + if: github.event_name == 'push' && contains(github.ref, 'refs/tags/') + runs-on: ubuntu-latest + timeout-minutes: 75 + steps: + - uses: actions/checkout@v4 + - name: Setup Python + uses: actions/setup-python@v5 + with: + python-version: 3.x + - name: Install tox + run: python -m pip install tox + - name: Run + run: tox -e release + env: + TWINE_PASSWORD: ${{ secrets.PYPI_TOKEN }} + GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} diff --git a/.github/workflows/pyright.yml b/.github/workflows/pyright.yml new file mode 100644 index 0000000000..42d0164ff1 --- /dev/null +++ b/.github/workflows/pyright.yml @@ -0,0 +1,77 @@ +# Split workflow file to not interfere with skeleton +name: pyright + +on: + merge_group: + push: + branches-ignore: + # temporary GH branches relating to merge queues (jaraco/skeleton#93) + - gh-readonly-queue/** + tags: + # required if branches-ignore is supplied (jaraco/skeleton#103) + - "**" + pull_request: + workflow_dispatch: + +concurrency: + group: >- + ${{ github.workflow }}- + ${{ github.ref_type }}- + ${{ github.event.pull_request.number || github.sha }} + cancel-in-progress: true + +env: + # pin pyright version so a new version doesn't suddenly cause the CI to fail, + # until types-setuptools is removed from typeshed. + # For help with static-typing issues, or pyright update, ping @Avasam + # + # An exact version from https://github.com/microsoft/pyright/releases or "latest" + PYRIGHT_VERSION: "1.1.385" + + # Environment variable to support color support (jaraco/skeleton#66) + FORCE_COLOR: 1 + + # Suppress noisy pip warnings + PIP_DISABLE_PIP_VERSION_CHECK: "true" + PIP_NO_PYTHON_VERSION_WARNING: "true" + PIP_NO_WARN_SCRIPT_LOCATION: "true" + +jobs: + pyright: + strategy: + # https://blog.jaraco.com/efficient-use-of-ci-resources/ + matrix: + python: + - "3.9" + - "3.13" + platform: + - ubuntu-latest + runs-on: ${{ matrix.platform }} + timeout-minutes: 10 + steps: + - uses: actions/checkout@v4 + - name: Setup Python + uses: actions/setup-python@v5 + with: + python-version: ${{ matrix.python }} + allow-prereleases: true + - name: Install typed dependencies + run: python -m pip install -e .[core,type] + - name: Inform how to run locally + run: | + echo 'To run this test locally with npm pre-installed, run:' + echo '> npx -y pyright@${{ env.PYRIGHT_VERSION }} --threads' + echo 'You can also instead install "Pyright for Python" which will install npm for you:' + if [ '$PYRIGHT_VERSION' == 'latest' ]; then + echo '> pip install -U' + else + echo '> pip install pyright==${{ env.PYRIGHT_VERSION }}' + fi + echo '> pyright --threads' + shell: bash + - name: Run pyright + uses: jakebailey/pyright-action@v2 + with: + version: ${{ env.PYRIGHT_VERSION }} + python-version: ${{ matrix.python }} + extra-args: --threads diff --git a/.hgignore b/.hgignore deleted file mode 100644 index bcd2437b02..0000000000 --- a/.hgignore +++ /dev/null @@ -1,11 +0,0 @@ -syntax: glob -*.pyc -*~ -.coverage -distribute.egg-info -build -dist -lib -bin -include -\.Python diff --git a/.mergify.yml b/.mergify.yml new file mode 100644 index 0000000000..7f0df535ff --- /dev/null +++ b/.mergify.yml @@ -0,0 +1,11 @@ +pull_request_rules: +- name: auto-merge + conditions: + - base=master + - label=auto-merge + - status-success=continuous-integration/appveyor/pr + - status-success=continuous-integration/travis-ci/pr + - status-success=deploy/netlify + actions: + merge: + method: merge diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml new file mode 100644 index 0000000000..633e3648e9 --- /dev/null +++ b/.pre-commit-config.yaml @@ -0,0 +1,7 @@ +repos: +- repo: https://github.com/astral-sh/ruff-pre-commit + rev: v0.9.9 + hooks: + - id: ruff + args: [--fix, --unsafe-fixes] + - id: ruff-format diff --git a/.readthedocs.yaml b/.readthedocs.yaml new file mode 100644 index 0000000000..724370638f --- /dev/null +++ b/.readthedocs.yaml @@ -0,0 +1,19 @@ +version: 2 +python: + install: + - path: . + extra_requirements: + - doc + +sphinx: + configuration: docs/conf.py + +# required boilerplate readthedocs/readthedocs.org#10401 +build: + os: ubuntu-lts-latest + tools: + python: latest + # post-checkout job to ensure the clone isn't shallow jaraco/skeleton#114 + jobs: + post_checkout: + - git fetch --unshallow || true diff --git a/CHANGES.txt b/CHANGES.txt deleted file mode 100644 index dfc41bc12b..0000000000 --- a/CHANGES.txt +++ /dev/null @@ -1,54 +0,0 @@ -======= -CHANGES -======= - ---- -0.6 ---- - -setuptools -========== - -* Packages required at build time where not fully present at install time. - This closes http://bitbucket.org/tarek/distribute/issue/12. - -* Protected against failures in tarfile extraction. This closes - http://bitbucket.org/tarek/distribute/issue/10. - -* Made Jython api_tests.txt doctest compatible. This closes - http://bitbucket.org/tarek/distribute/issue/7. - -* sandbox.py replaced builtin type file with builtin function open. This - closes http://bitbucket.org/tarek/distribute/issue/6. - -* Immediately close all file handles. This closes - http://bitbucket.org/tarek/distribute/issue/3. - -* Added compatibility with Subversion 1.6. This references - http://bitbucket.org/tarek/distribute/issue/1. - -pkg_resources -============= - -* Avoid a call to /usr/bin/sw_vers on OSX and use the official platform API - instead. Based on a patch from ronaldoussoren. This closes - http://bitbucket.org/tarek/distribute/issue/5. - -* Fixed a SandboxViolation for mkdir that could occur in certain cases. - This closes http://bitbucket.org/tarek/distribute/issue/13. - -* Allow to find_on_path on systems with tight permissions to fail gracefully. - This closes http://bitbucket.org/tarek/distribute/issue/9. - -* Corrected inconsistency between documentation and code of add_entry. - This closes http://bitbucket.org/tarek/distribute/issue/8. - -* Immediately close all file handles. This closes - http://bitbucket.org/tarek/distribute/issue/3. - -easy_install -============ - -* Immediately close all file handles. This closes - http://bitbucket.org/tarek/distribute/issue/3. - diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000000..1bb5a44356 --- /dev/null +++ b/LICENSE @@ -0,0 +1,17 @@ +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to +deal in the Software without restriction, including without limitation the +rights to use, copy, modify, merge, publish, distribute, sublicense, and/or +sell copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS +IN THE SOFTWARE. diff --git a/MANIFEST.in b/MANIFEST.in index a2439ccd0c..0643e7ee2d 100644 --- a/MANIFEST.in +++ b/MANIFEST.in @@ -1,8 +1,21 @@ -recursive-include setuptools *.py *.txt *.exe -recursive-include tests *.py *.c *.pyx -recursive-include docs *.py *.txt Makefile -recursive-include buildout *.py +recursive-include setuptools *.py *.exe *.xml *.tmpl +recursive-include tests *.py +recursive-include setuptools/tests *.html +recursive-include docs *.py *.txt *.rst *.conf *.css *.css_t Makefile indexsidebar.html +recursive-include setuptools/_vendor * +recursive-include pkg_resources *.py *.txt +recursive-include pkg_resources/tests/data * +recursive-include tools * +recursive-include newsfragments * include *.py -include *.txt +include *.rst include MANIFEST.in +global-include LICEN[CS]E* COPYING* NOTICE* AUTHORS* include launcher.c +include msvc-build-launcher.cmd +include mypy.ini +include pytest.ini +include tox.ini +include setuptools/tests/config/setupcfg_examples.txt +include setuptools/config/*.schema.json +global-exclude *.py[cod] __pycache__ diff --git a/NEWS.rst b/NEWS.rst new file mode 100644 index 0000000000..ebcca10197 --- /dev/null +++ b/NEWS.rst @@ -0,0 +1,8499 @@ +v80.0.0 +======= + +Bugfixes +-------- + +- Update test to honor new behavior in importlib_metadata 8.7. (#4961) + + +Deprecations and Removals +------------------------- + +- Removed support for the easy_install command including the sandbox module. (#2908) +- Develop command no longer uses easy_install, but instead defers execution to pip (which then will re-invoke Setuptools via PEP 517 to build the editable wheel). Most of the options to develop are dropped. This is the final warning before the command is dropped completely in a few months. Use-cases relying on 'setup.py develop' should pin to older Setuptools version or migrate to modern build tooling. (#4955) + + +v79.0.1 +======= + +Bugfixes +-------- + +- Merge with pypa/distutils@24bd3179b including fix for pypa/distutils#355. + + +v79.0.0 +======= + +Deprecations and Removals +------------------------- + +- Removed support for 'legacy-editable' installs. (#917) + + +v78.1.1 +======= + +Bugfixes +-------- + +- More fully sanitized the filename in PackageIndex._download. (#4946) + + +v78.1.0 +======= + +Features +-------- + +- Restore access to _get_vc_env with a warning. (#4874) + + +v78.0.2 +======= + +Bugfixes +-------- + +- Postponed removals of deprecated dash-separated and uppercase fields in ``setup.cfg``. + All packages with deprecated configurations are advised to move before 2026. (#4911) + + +v78.0.1 +======= + +Misc +---- + +- #4909 + + +v78.0.0 +======= + +Bugfixes +-------- + +- Reverted distutils changes that broke the monkey patching of command classes. (#4902) + + +Deprecations and Removals +------------------------- + +- Setuptools no longer accepts options containing uppercase or dash characters in ``setup.cfg``. + Please ensure to write the options in ``setup.cfg`` using the :wiki:`lower_snake_case ` convention + (e.g. ``Name => name``, ``install-requires => install_requires``). + This is a follow-up on deprecations introduced in + `v54.1.0 `_ (see #1608) and + `v54.1.1 `_ (see #2592). + + .. note:: + This change *does not affect configurations in* ``pyproject.toml`` + (which uses the :wiki:`lower-kebab-case ` convention following the precedent set in :pep:`517`/:pep:`518`). (#4870) + + +Misc +---- + +- #4904 + + +v77.0.3 +======= + +Bugfixes +-------- + +- Temporarily convert error for license glob patterns containing ``../`` into a deprecation warning + to allow an accomodation period. (#4896) +- Better error messages for ``packaging.licenses`` import errors in environments with ``packaging<24.2``\. + The import statement was also deferred to spare users that are not using + license expressions. (#4898) +- Avoided eagerly raising an exception when ``license-files`` is defined + simultaneously inside and outside of ``pyproject.toml``. + Instead we rely on the existing deprecation error. (#4899) + + +v77.0.2 +======= + +Bugfixes +-------- + +- Restore ``distutils.ccompiler._default_compilers`` -- by :user:`ManiacDC` (#4876) +- Fixed copy pasta in ``msvc.shared_lib_format``\. (#4885) + + +v77.0.1 +======= + +Bugfixes +-------- + +- Manually fix news fragment entries causing CI to crash when building docs. (#4891) + + +v77.0.0 +======= + +Features +-------- + +- Added initial support for license expression (PEP :pep:`639 <639#add-license-expression-field>`). -- by :user:`cdce8p` (#4706) +- Store ``License-File``\s in ``.dist-info/licenses`` subfolder and added support for recursive globs for ``license_files`` (PEP :pep:`639 <639#add-license-expression-field>`). -- by :user:`cdce8p` (#4728) +- Bump core metadata version to ``2.4``\. -- by :user:`cdce8p` (#4830) +- Updated vendored copy of ``wheel`` to ``v0.45.1``\. (#4869) + + +Deprecations and Removals +------------------------- + +- Added initial implementation of :pep:`639`. + Users relying on pre- :pep:`639` implementation details + (like precise license file paths inside ``dist-info`` directory) + may need to adjust their code base to avoid problems. + Deprecations and stronger validation were also introduced (#4829). +- Added exception (or warning) when deprecated license classifiers are used, + according to PEP :pep:`639 <639#deprecate-license-classifiers>`. (#4833) +- Deprecated ``tools.setuptools.license-files`` in favor of ``project.license-files`` + and added exception if ``project.license-files`` and ``tools.setuptools.license-files`` + are used together. -- by :user:`cdce8p` (#4837) +- Deprecated ``project.license`` as a TOML table in + ``pyproject.toml``\. Users are expected to move towards using + ``project.license-files`` and/or SPDX expressions (as strings) in + ``project.license``\. + See PEP :pep:`639 <639#deprecate-license-key-table-subkeys>`. (#4840) +- Added simple validation for given glob patterns in ``license-files``\: + a warning will be generated if no file is matched. + Invalid glob patterns can raise an exception. + -- thanks :user:`cdce8p` for contributions. (#4838) + + +Misc +---- + +- #4734 + + +v76.1.0 +======= + +Features +-------- + +- In setuptools.msvc.EnvironmentInfo, now honor the correct paths when on an ARM host. (#4786) + + +Bugfixes +-------- + +- Restored implicit distutils.ccompiler import for g-ir-scanner. (#4871) +- Restore ``distutils.ccompiler.compiler_class`` -- by :user:`Avasam` (#4876) + + +v75.3.2 +======= + +- Fixed version error in changelog. + + +v75.3.1 +======= + +Bugfixes +-------- + +- Fix wheel file naming to follow binary distribution specification -- by :user:`di` (#4877) + + +v76.0.0 +======= + +Deprecations and Removals +------------------------- + +- Synced with pypa/distutils@5589d7527 including a simplified shebang generation when building scripts (#4863). (#4865) + + +v75.9.1 +======= + +Bugfixes +-------- + +- Fix ImportError in distutils when configuring for linking. (#4866) + + +v75.9.0 +======= + +Features +-------- + +- Synced with pypa/distutils@91f75bb98 including exporting of PyInit_pkg (pypa/distutils#327) and a refactoring of the compiler classes into distutils.compilers (pypa/distutils#295). (#4852) + + +v75.8.2 +======= + +Bugfixes +-------- + +- Fixed ``pkg_resources.require(...)`` to also consider standardised + ``dist-info`` directories. (#4856) + + +v75.8.1 +======= + +Bugfixes +-------- + +- Fix wheel file naming to follow binary distribution specification -- by :user:`di` (#4766) +- Fixed crash generating error message printed when building wheels for the + free-threaded build using the limited API. -- by :user:`ngoldbaum` (#4809) +- Fix documentation for recent CFLAGS distutils change. -- by :user:`thesamesam` (#4836) + + +v75.8.0 +======= + +Features +-------- + +- Implemented ``Dynamic`` field for core metadata (as introduced in PEP 643). + The existing implementation is currently experimental and the exact approach + may change in future releases. (#4698) + + +v75.7.0 +======= + +Features +-------- + +- Synced with pypa/distutils@c97a3db2f including better support for free threaded Python on Windows (pypa/distutils#310), improved typing support, and linter accommodations. (#4478) +- Synced with pypa/distutils@ff11eed0c including bugfix for duplicate CFLAGS and adaption to support Python 3.13 is_abs in the C compiler (#4669). (#4790) + + +v75.6.0 +======= + +Features +-------- + +- Preserve original ``PKG-INFO`` into ``METADATA`` when creating wheel + (instead of calling ``wheel.metadata.pkginfo_to_metadata``). + This helps to be more compliant with the flow specified in PEP 517. (#4701) +- Changed the ``WindowsSdkVersion``, ``FrameworkVersion32`` and ``FrameworkVersion64`` properties of ``setuptools.msvc.PlatformInfo`` to return an empty `tuple` instead of `None` as a fallthrough case -- by :user:`Avasam` (#4754) + + +v75.5.0 +======= + +Features +-------- + +- Removed support for ``SETUPTOOLS_DANGEROUSLY_SKIP_PYPROJECT_VALIDATION``, as it + is deemed prone to errors. (#4746) + + +v75.4.0 +======= + +Features +-------- + +- Added support for the environment variable + ``SETUPTOOLS_DANGEROUSLY_SKIP_PYPROJECT_VALIDATION=true``, allowing users to bypass + the validation of ``pyproject.toml``. + This option should be used only as a last resort when resolving dependency + issues, as it may lead to improper functioning. + Users who enable this setting are responsible for ensuring that ``pyproject.toml`` + complies with setuptools requirements. (#4611) + + .. attention:: + This environment variable was removed in a later version of ``setuptools``. + +- Require Python 3.9 or later. (#4718) +- Remove dependency on ``importlib_resources`` + and the vendored copy of the library. + Instead, ``setuptools`` consistently rely on stdlib's ``importlib.resources`` + (available on Python 3.9+). (#4718) +- Setuptools' ``bdist_wheel`` implementation no longer produces wheels with + the ``m`` SOABI flag (pymalloc-related). + This flag was removed on Python 3.8+ (see :obj:`sys.abiflags`). (#4718) +- Updated vendored packaging version to 24.2. (#4740) + + +Bugfixes +-------- + +- Merge with pypa/distutils@251797602, including fix for dirutil.mkpath handling in pypa/distutils#304. + + +v75.3.0 +======= + +Features +-------- + +- Allowed using `dict` as an ordered type in ``setuptools.dist.check_requirements`` -- by :user:`Avasam` (#4575) + + +Bugfixes +-------- + +- Ensured methods in ``setuptools.modified`` preferably raise a consistent + ``distutils.errors.DistutilsError`` type + (except in the deprecated use case of ``SETUPTOOLS_USE_DISTUTILS=stdlib``) + -- by :user:`Avasam` (#4567) +- Fix the ABI tag when building a wheel using the debug build of Python 3.13 on Windows. Previously, the ABI tag was missing the ``"d"`` flag. (#4674) +- Fix clashes for ``optional-dependencies`` in ``pyproject.toml`` and + ``extra_requires`` in ``setup.cfg/setup.py``. + As per PEP 621, ``optional-dependencies`` have to be honoured and dynamic + behaviour is not allowed. (#4696) + + +Misc +---- + +- #4560 + + +v75.2.0 +======= + +Features +-------- + +- Made errors when parsing ``Distribution`` data more explicit about the expected type (``tuple[str, ...] | list[str]``) -- by :user:`Avasam` (#4578) + + +Bugfixes +-------- + +- Fix a `TypeError` when a ``Distribution``'s old included attribute was a `tuple` -- by :user:`Avasam` (#4578) +- Add workaround for ``bdist_wheel --dist-info-dir`` errors + when customisation does not inherit from setuptools. (#4684) + + +v75.1.1 +======= + +Bugfixes +-------- + +- Re-use pre-existing ``.dist-info`` dir when creating wheels via the build backend APIs (PEP 517) and the ``metadata_directory`` argument is passed -- by :user:`pelson`. (#1825) +- Changed ``egg_info`` command to avoid adding an empty ``.egg-info`` directory + while iterating over entry-points. + This avoids triggering integration problems with ``importlib.metadata``/``importlib_metadata`` + (reference: pypa/pyproject-hooks#206). (#4680) + + +v75.1.0 +======= + +Features +-------- + +- Deprecated ``bdist_wheel.universal`` configuration. (#4617) + + +Bugfixes +-------- + +- Removed reference to upload_docs module in entry points. (#4650) + + +v75.0.0 +======= + +Features +-------- + +- Declare also the dependencies used by distutils (adds jaraco.collections). + + +Deprecations and Removals +------------------------- + +- Removed upload_docs command. (#2971) +- Merge with pypa/distutils@7283751. Removed the register and upload commands and the config module that backs them (pypa/distutils#294). Removed the borland compiler. Replaced vendored dependencies with natural dependencies. Cygwin C compiler now gets compilers from sysconfig (pypa/distutils#296). (#4649) + + +v74.1.3 +======= + +Bugfixes +-------- + +- Fix cross-platform compilation using ``distutils._msvccompiler.MSVCCompiler`` -- by :user:`saschanaz` and :user:`Avasam` (#4648) + + +v74.1.2 +======= + +Bugfixes +-------- + +- Fixed TypeError in sdist filelist processing by adding support for pathlib Paths for the build_base. (#4615) +- Removed degraded and deprecated ``test_integration`` (easy_install) from the test suite. (#4632) + + +v74.1.1 +======= + +Bugfixes +-------- + +- Fixed TypeError in ``msvc.EnvironmentInfo.return_env`` when no runtime redistributables are installed. (#1902) + + +v74.1.0 +======= + +Features +-------- + +- Added support for defining ``ext-modules`` via ``pyproject.toml`` + (**EXPERIMENTAL**, may change in future releases). (#4568) + + +Bugfixes +-------- + +- Merge with pypa/distutils@3dcdf8567, removing the duplicate vendored copy of packaging. (#4622) +- Restored ``setuptools.msvc.Environmentinfo`` as it is used externally. (#4625) + + +v74.0.0 +======= + +Features +-------- + +- Changed the type of error raised by ``setuptools.command.easy_install.CommandSpec.from_param`` on unsupported argument from `AttributeError` to `TypeError` -- by :user:`Avasam` (#4548) +- Added detection of ARM64 variant of MSVC -- by :user:`saschanaz` (#4553) +- Made ``setuptools.package_index.Credential`` a `typing.NamedTuple` -- by :user:`Avasam` (#4585) +- Reraise error from ``setuptools.command.easy_install.auto_chmod`` instead of nonsensical ``TypeError: 'Exception' object is not subscriptable`` -- by :user:`Avasam` (#4593) +- Fully typed all collection attributes in ``pkg_resources`` -- by :user:`Avasam` (#4598) +- Automatically exclude ``.tox|.nox|.venv`` directories from ``sdist``. (#4603) + + +Deprecations and Removals +------------------------- + +- Removed the monkeypatching of distutils._msvccompiler. Now all compiler logic is consolidated in distutils. (#4600) +- Synced with pypa/distutils@58fe058e4, including consolidating Visual Studio 2017 support (#4600, pypa/distutils#289), removal of deprecated legacy MSVC compiler modules (pypa/distutils#287), suppressing of errors when the home directory is missing (pypa/distutils#278), removal of wininst binaries (pypa/distutils#282). (#4606) + + +Misc +---- + +- #4592 + + +v73.0.1 +======= + +Bugfixes +-------- + +- Remove `abc.ABCMeta` metaclass from abstract classes. `pypa/setuptools#4503 `_ had an unintended consequence of causing potential ``TypeError: metaclass conflict: the metaclass of a derived class must be a (non-strict) subclass of the metaclasses of all its bases`` -- by :user:`Avasam` (#4579) + + +v73.0.0 +======= + +Features +-------- + +- Mark abstract base classes and methods with `abc.ABC` and `abc.abstractmethod` -- by :user:`Avasam` (#4503) +- Changed the order of type checks in ``setuptools.command.easy_install.CommandSpec.from_param`` to support any `collections.abc.Iterable` of `str` param -- by :user:`Avasam` (#4505) + + +Bugfixes +-------- + +- Prevent an error in ``bdist_wheel`` if ``compression`` is set to a `str` (even if valid) after finalizing options but before running the command. -- by :user:`Avasam` (#4383) +- Raises an exception when ``py_limited_api`` is used in a build with + ``Py_GIL_DISABLED``. This is currently not supported (python/cpython#111506). (#4420) +- Synced with pypa/distutils@30b7331 including fix for modified check on empty sources (pypa/distutils#284). + + +Deprecations and Removals +------------------------- + +- ``setuptools`` is replacing the usages of :pypi:`ordered_set` with simple + instances of ``dict[Hashable, None]``. This is done to remove the extra + dependency and it is possible because since Python 3.7, ``dict`` maintain + insertion order. (#4574) + + +Misc +---- + +- #4534, #4546, #4554, #4559, #4565 + + +v72.2.0 +======= + +Features +-------- + +- Merged with pypa/distutils@b7ee725f3 including: Support for Pathlike objects in data files and extensions (pypa/distutils#272, pypa/distutils#237), native support for C++ compilers (pypa/distuils#228) and removed unused get_msvcr() (pypa/distutils#274). (#4538) + + +v72.1.0 +======= + +Features +-------- + +- Restore the tests command and deprecate access to the module. (#4519) (#4520) + + +v72.0.0 +======= + +Deprecations and Removals +------------------------- + +- The test command has been removed. Users relying on 'setup.py test' will need to migrate to another test runner or pin setuptools before this version. (#931) + + +v71.1.0 +======= + +Features +-------- + +- Added return types to typed public functions -- by :user:`Avasam` + + Marked `pkg_resources` as ``py.typed`` -- by :user:`Avasam` (#4409) + + +Misc +---- + +- #4492 + + +v71.0.4 +======= + +Bugfixes +-------- + +- Removed lingering unused code around Distribution._patched_dist. (#4489) + + +v71.0.3 +======= + +Bugfixes +-------- + +- Reset the backports module when enabling vendored packages. (#4476) + + +v71.0.2 +======= + +Bugfixes +-------- + +- Include all vendored files in the sdist. (#4480) + + +v71.0.1 +======= + +Bugfixes +-------- + +- Restored package data that went missing in 71.0. This change also incidentally causes tests to be installed once again. (#4475) + + +v71.0.0 +======= + +Deprecations and Removals +------------------------- + +- Now setuptools declares its own dependencies in the ``core`` extra. Dependencies are still vendored for bootstrapping purposes, but setuptools will prefer installed dependencies if present. The ``core`` extra is used for informational purposes and should *not* be declared in package metadata (e.g. ``build-requires``). Downstream packagers can de-vendor by simply removing the ``setuptools/_vendor`` directory. Since Setuptools now prefers installed dependencies, those installing to an environment with old, incompatible dependencies will not work. In that case, either uninstall the incompatible dependencies or upgrade them to satisfy those declared in ``core``. (#2825) + + +v70.3.0 +======= + +Features +-------- + +- Support for loading distutils from the standard library is now deprecated, including use of SETUPTOOLS_USE_DISTUTILS=stdlib and importing distutils before importing setuptools. (#4137) + + +Bugfixes +-------- + +- Bugfix for building Cython extension on Windows (pypa/distutils#268). + + +v70.2.0 +======= + +Features +-------- + +- Updated distutils including significant changes to support Cygwin and mingw compilers. (#4444) + + +Bugfixes +-------- + +- Fix distribution name normalisation (:pep:`625`) for valid versions that are + not canonical (e.g. ``1.0-2``). (#4434) + + +v70.1.1 +======= + +Misc +---- + +- #4429 + + +v70.1.0 +======= + +Features +-------- + +- Adopted the ``bdist_wheel`` command from the ``wheel`` project -- by :user:`agronholm` (#1386) +- Improve error message when ``pkg_resources.ZipProvider`` tries to extract resources with a missing Egg -- by :user:`Avasam` + + Added variables and parameter type annotations to ``pkg_resources`` to be nearly on par with typeshed.\* -- by :user:`Avasam` + \* Excluding ``TypeVar`` and ``overload``. Return types are currently inferred. (#4246) +- Migrated Setuptools' own config to pyproject.toml (#4310) + + +Bugfixes +-------- + +- Prevent a ``TypeError: 'NoneType' object is not callable`` when ``shutil_rmtree`` is called without an ``onexc`` parameter on Python<=3.11 -- by :user:`Avasam` (#4382) +- Replace use of mktemp with can_symlink from the stdlib test suite. (#4403) +- Improvement for ``attr:`` directives in configuration to handle + more edge cases related to complex ``package_dir``. (#4405) +- Fix accidental implicit string concatenation. (#4411) + + +Misc +---- + +- #4365, #4422 + + +v70.0.0 +======= + +Features +-------- + +- Emit a warning when ``[tools.setuptools]`` is present in ``pyproject.toml`` and will be ignored. -- by :user:`SnoopJ` (#4150) +- Improved `AttributeError` error message if ``pkg_resources.EntryPoint.require`` is called without extras or distribution + Gracefully "do nothing" when trying to activate a ``pkg_resources.Distribution`` with a `None` location, rather than raising a `TypeError` + -- by :user:`Avasam` (#4262) +- Typed the dynamically defined variables from `pkg_resources` -- by :user:`Avasam` (#4267) +- Modernized and refactored VCS handling in package_index. (#4332) + + +Bugfixes +-------- + +- In install command, use super to call the superclass methods. Avoids race conditions when monkeypatching from _distutils_system_mod occurs late. (#4136) +- Fix finder template for lenient editable installs of implicit nested namespaces + constructed by using ``package_dir`` to reorganise directory structure. (#4278) +- Fix an error with `UnicodeDecodeError` handling in ``pkg_resources`` when trying to read files in UTF-8 with a fallback -- by :user:`Avasam` (#4348) + + +Improved Documentation +---------------------- + +- Uses RST substitution to put badges in 1 line. (#4312) + + +Deprecations and Removals +------------------------- + +- Further adoption of UTF-8 in ``setuptools``. + This change regards mostly files produced and consumed during the build process + (e.g. metadata files, script wrappers, automatically updated config files, etc..) + Although precautions were taken to minimize disruptions, some edge cases might + be subject to backwards incompatibility. + + Support for ``"locale"`` encoding is now **deprecated**. (#4309) +- Remove ``setuptools.convert_path`` after long deprecation period. + This function was never defined by ``setuptools`` itself, but rather a + side-effect of an import for internal usage. (#4322) +- Remove fallback for customisations of ``distutils``' ``build.sub_command`` after long + deprecated period. + Users are advised to import ``build`` directly from ``setuptools.command.build``. (#4322) +- Removed ``typing_extensions`` from vendored dependencies -- by :user:`Avasam` (#4324) +- Remove deprecated ``setuptools.dep_util``. + The provided alternative is ``setuptools.modified``. (#4360) + + +Misc +---- + +- #4255, #4280, #4282, #4308, #4348 + + +v69.5.1 +======= + +No significant changes. + + +v69.5.0 +======= + +Features +-------- + +- Refresh unpinned vendored dependencies. (#4253) +- Updated vendored packaging to version 24.0. (#4301) + + +v69.4.2 +======= + +Bugfixes +-------- + +- Merged bugfix for pypa/distutils#246. + + +v69.4.1 +======= + +No significant changes. + + +v69.4.0 +======= + +Features +-------- + +- Merged with pypa/distutils@55982565e, including interoperability improvements for rfc822_escape (pypa/distutils#213), dynamic resolution of config_h_filename for Python 3.13 compatibility (pypa/distutils#219), added support for the z/OS compiler (pypa/distutils#216), modernized compiler options in unixcompiler (pypa/distutils#214), fixed accumulating flags bug after compile/link (pypa/distutils#207), fixed enconding warnings (pypa/distutils#236), and general quality improvements (pypa/distutils#234). (#4298) + + +v69.3.1 +======= + +Bugfixes +-------- + +- Remove attempt to canonicalize the version. It's already canonical enough. (#4302) + + +v69.3.0 +======= + +Features +-------- + +- Support PEP 625 by canonicalizing package name and version in filenames + per + `the spec `_. + Projects whose names contain uppercase characters, dashes, or periods will + now see their sdist names normalized to match the standard and the format + previously seen in wheels. For example: + + - ``zope.interface`` -> ``zope_interface`` + - ``CherryPy`` -> ``cherrypy`` + - ``foo-bar_baz`` -> ``foo_bar_baz`` + + Projects are encouraged to adopt this change to align with standards and + other backend build systems. (#3593) + + +v69.2.0 +======= + +Features +-------- + +- Explicitly use ``encoding="locale"`` for ``.pth`` files whenever possible, + to reduce ``EncodingWarnings``. + This avoid errors with UTF-8 (see discussion in python/cpython#77102). (#4265) + + +Bugfixes +-------- + +- Clarify some `pkg_resources` methods return `bytes`, not `str`. Also return an empty `bytes` in ``EmptyProvider._get`` -- by :user:`Avasam` (#4243) +- Return an empty `list` by default in ``pkg_resources.ResourceManager.cleanup_resources`` -- by :user:`Avasam` (#4244) +- Made ``pkg_resoursces.NullProvider``'s ``has_metadata`` and ``metadata_isdir`` methods return actual booleans like all other Providers. -- by :user:`Avasam` (#4254) + + +Misc +---- + +- #4237, #4238, #4241, #4260, #4261, #4263 + + +v69.1.1 +======= + +Bugfixes +-------- + +- Fix argument order of ``--config-settings["--build-option"]`` arguments. + This was broken by `. (#4217) + + +Misc +---- + +- #4231 + + +v69.1.0 +======= + +Features +-------- + +- Updated and removed obsolete Python < 3.8 code and comments. -- by :user:`Avasam` (#4096) +- Updated `pkg_resources` to use stdlib `importlib.machinery` instead of ``importlib_machinery`` -- by :user:`Avasam` (#4097) + + +Bugfixes +-------- + +- In tests, rely on pytest-home for reusable fixture. (#4072) +- Explicitly marked as ``Protocol`` and fixed missing ``self`` argument in interfaces ``pkg_resources.IMetadataProvider`` and ``pkg_resources.IResourceProvider`` -- by :user:`Avasam` (#4144) +- Restored expectation that egg-link files would be named with dash separators for compatibility with pip prior to version 24. (#4167) + + +Improved Documentation +---------------------- + +- Updated documentation referencing obsolete Python 3.7 code. -- by :user:`Avasam` (#4096) +- Changed ``versionadded`` for "Type information included by default" feature from ``v68.3.0`` to ``v69.0.0`` -- by :user:`Avasam` (#4182) +- Described the auto-generated files -- by :user:`VladimirFokow` (#4198) +- Updated "Quickstart" to describe the current status of ``setup.cfg`` and ``pyproject.toml`` -- by :user:`VladimirFokow` (#4200) + + +v69.0.3 +======= + +Bugfixes +-------- + +- Retain valid names with underscores in egg_info. + + +v69.0.2 +======= + +Bugfixes +-------- + +- Added missing estimated date for removing ``setuptools.dep_util`` (deprecated in v69.0.0). (#4131) + + +v69.0.1 +======= + +Bugfixes +-------- + +- Fixed imports of ``setuptools.dep_util.newer_group``. + A deprecation warning is issued instead of a hard failure. (#4126) + + +v69.0.0 +======= + +Features +-------- + +- Include type information (``py.typed``, ``*.pyi``) by default (#3136) -- by :user:`Danie-1`, + **EXPERIMENTAL**. (#3136) +- Exported ``distutils.dep_util`` and ``setuptools.dep_util`` through ``setuptools.modified`` -- by :user:`Avasam` (#4069) +- Merged with pypa/distutils@7a04cbda0fc714. + + +Bugfixes +-------- + +- Replaced hardcoded numeric values with :obj:`dis.opmap`, + fixing problem with 3.13.0a1. (#4094) + + +Deprecations and Removals +------------------------- + +- Configuring project ``version`` and ``egg_info.tag_*`` in such a way that + results in invalid version strings (according to :pep:`440`) is no longer permitted. (#4066) +- Removed deprecated ``egg_base`` option from ``dist_info``. + Note that the ``dist_info`` command is considered internal to the way + ``setuptools`` build backend works and not intended for + public usage. (#4066) +- The parsing of the deprecated ``metadata.license_file`` and + ``metadata.requires`` fields in ``setup.cfg`` is no longer supported. + Users are expected to move to ``metadata.license_files`` and + ``options.install_requires`` (respectively). (#4066) +- Passing ``config_settings`` to ``setuptools.build_meta`` with + deprecated values for ``--global-option`` is no longer allowed. (#4066) +- Removed deprecated ``namespace-packages`` from ``pyproject.toml``. + Users are asked to use + :doc:`implicit namespace packages ` + (as defined in :pep:`420`). (#4066) +- Added strict enforcement for ``project.dynamic`` in ``pyproject.toml``. + This removes the transitional ability of users configuring certain parameters + via ``setup.py`` without making the necessary changes to ``pyproject.toml`` + (as mandated by :pep:`621`). (#4066) +- Removed handling of ``--config-settings["--build-option"]`` in ``setuptools.build_meta`` + from build-backend API hooks *other than* ``build_wheel``. + This was motivate by `errors caused when passing this option + `_. (#4079) + + +v68.2.2 +======= + +Bugfixes +-------- + +- Improve backwards compatibility with deprecated CLI practices. (#4048) + + +v68.2.1 +======= + +Bugfixes +-------- + +- Avoid using caching attributes in ``Distribution.metadata`` for requirements. + This is done for backwards compatibility with customizations that attempt to + modify ``install_requires`` or ``extras_require`` at a late point (still not + recommended). (#4043) + + +Misc +---- + +- #4045 + + +v68.2.0 +======= + +Features +-------- + +- Rework how ``setuptools`` internally handles ``dependencies/install_requires`` + and ``optional-dependencies/extras_require``. (#3903) +- Improve the generated ``PKG-INFO`` files, by adding ``Requires-Dist`` fields. + Previously, these fields would be omitted in favour of a non-standard + ``*.egg-info/requires.txt`` file (which is still generated for the time being). (#3904) +- Improve atomicity when writing ``PKG-INFO`` files to avoid race + conditions with ``importlib.metadata``. (#3904) + + +Bugfixes +-------- + +- Fix the name given to the ``*-nspkg.pth`` files in editable installs, + ensuring they are unique per distribution. (#4041) +- Workaround some limitations on ``pkg_resources``-style legacy namespaces in + the meta path finder for editable installations. (#4041) + + +Misc +---- + +- #4023, #4027, #4027 + + +v68.1.2 +======= + +Misc +---- + +- #4022, #4022 + + +v68.1.1 +======= + +Bugfixes +-------- + +- Fix editable install finder handling of nested packages, by only handling 1 + level of nesting and relying on ``importlib.machinery`` to find the remaining + modules based on the parent package path. (#4020) + + +v68.1.0 +======= + +Features +-------- + +- Removed code referencing bdist_wininst in install_scripts. (#3525) +- Promote ``pyproject.toml``'s ``[tool.setuptools]`` out of beta. + Note that some fields are still considered deprecated and/or obsolete, + and these might be removed in future versions (i.e., there is no guarantee + for long term support and backward compatibility on those fields). (#3962) +- Automatically add files listed in ``Extension.depends`` to sdists, + as long as they are contained in the project directory -- by :user:`RuRo` (#4000) +- Require Python 3.8 or later. + + +Bugfixes +-------- + +- Made imports in editable installs case-sensitive on case-insensitive filesystems -- by :user:`aganders3` (#3995) +- Use default encoding to create ``.pth`` files with ``editable_wheel``. (#4009) +- Detects (and complain about) ``scripts`` and ``gui-scripts`` set via ``setup.py`` + when ``pyproject.toml`` does not include them in ``dynamic``. (#4012) + + +Misc +---- + +- #3833, #3960, #4001, #4007 + + +v68.0.0 +======= + + +Breaking Changes +---------------- +* #3948: Removed verification for existing ``depends.txt`` file (deprecated since v0.5a4). +* #3948: Remove autofixing of broken ``.egg-info`` directories containing the ``-`` + character in their base name (without suffix). + They should no longer be produced by sufficiently new versions of ``setuptools`` + (warning introduced in 2005). +* #3948: Remove deprecated APIs in ``easy_install``: ``get_script_args``, + ``get_script_header`` and ``get_writer``. + The direct usage of ``easy_install`` has been deprecated since v58.3.0, + and the warnings regarding these APIs predate that version. +* #3948: Removed ``egg_info.get_pkg_info_revision`` (deprecated since 2015). +* #3948: Removed ``setuptools.dist._get_unpatched`` (deprecated since 2016) +* #3948: Removed support for SVN in ``setuptools.package_index`` (deprecated since 2018). +* #3948: Removed support for invalid ``pyproject.toml`` files. + During the implementation of PEP 621, it was identified that some users were + producing invalid files. As a transitional measure, the validation was relaxed + for a few use cases. The grace period, however, came to an end. + +Changes +------- +* #3760: Added symlink support to launcher for installed executables -- by :user:`eugene-sevostianov-sc` +* #3926: Updated vendored ``packaging`` version from 23.0 to 23.1 -- by :user:`MetRonnie` +* #3950: Implemented workaround for old versions of ``vswhere``, which miss the + ``-requiresAny`` parameter, such as the ones distributed together with Visual Studio 2017 < 15.6. +* #3952: Changed ``DistutilsMetaFinder`` to skip ``spec_for_pip`` on Python >= 3.12. +* #3952: Removed ``_distutils_hack.remove_shim`` on Python >= 3.12 + (since ``distutils`` was removed from the standard library, + ``DistutilsMetaFinder`` cannot be disabled on Python >= 3.12). + +Misc +---- +* #3920: Add a link to deprecation warning in ``pkg_resources`` and improve + ``stacklevel`` for better visibility. + + +v67.8.0 +======= + + +Changes +------- +* #3128: In deprecated easy_install, reload and merge the pth file before saving. + +Misc +---- +* #3915: Adequate tests to the latest changes in ``virtualenv`` for Python 3.12. + + +v67.7.2 +======= + + +Misc +---- +* #3902: Fixed wrong URLs used in warnings and logs. + + +v67.7.1 +======= + + +Misc +---- +* #3898: Fixes setuptools.dist:invalid_unless_false when value is false don't raise error -- by :user:`jammarher` + + +v67.7.0 +======= + + +Changes +------- +* #3849: Overhaul warning system for better visibility. + +Documentation changes +--------------------- +* #3859: Added a note about historical presence of ``wheel`` + in ``build-system.requires``, in ``pyproject.toml``. +* #3893: Improved the documentation example regarding making a thin :pep:`517` in-tree + backend wrapper of ``setuptools.build_meta`` that is future-proof and supports + :pep:`660` hook too -- by :user:`webknjaz`. + +Misc +---- +* #3884: Add a ``stacklevel`` parameter to ``warnings.warn()`` to provide more information to the user. + -- by :user:`cclauss` + + +v67.6.1 +======= + + +Misc +---- +* #3865: Fixed ``_WouldIgnoreField`` warnings for ``scripts`` and ``gui_scripts``, + when ``entry-points`` is not listed in dynamic. +* #3875: Update code generated by ``validate-pyproject`` to use v0.12.2. + This should fix default license patterns when ``pyproject.toml`` is used. + + +v67.6.0 +======= + + +Changes +------- +* #3804: Added caching for supported wheel tags. +* #3846: Added pruning heuristics to ``PackageFinder`` based on ``exclude``. + + +v67.5.1 +======= + + +Misc +---- +* #3836: Fixed interaction between ``setuptools``' package auto-discovery and + auto-generated ``htmlcov`` files. + + Previously, the ``htmlcov`` name was ignored when searching for single-file + modules, however the correct behaviour is to ignore it when searching for + packages (since it is supposed to be a directory, see `coverage config`_) + -- by :user:`yukihiko-shinoda`. + + .. _coverage config: https://coverage.readthedocs.io/en/stable/config.html#html-directory +* #3838: Improved error messages for ``pyproject.toml`` validations. +* #3839: Fixed ``pkg_resources`` errors caused when parsing metadata of packages that + are already installed but do not conform with PEP 440. + + +v67.5.0 +======= + + +Changes +------- +* #3843: Although pkg_resources has been discouraged for use, some projects still consider pkg_resources viable for usage. This change makes it clear that pkg_resources should not be used, emitting a DeprecationWarning when imported. + + +v67.4.0 +======= + + +Changes +------- +* #3832: Update vendored ``importlib-metadata`` (to 6.0.0) and + ``importlib-resources`` (to 5.10.2) + + +v67.3.3 +======= + + +Misc +---- +* #3820: Restore quoted ``#include`` argument to ``has_function``. + + +v67.3.2 +======= + + +Misc +---- +* #3827: Improve deprecation warning message on ``pkg_resources.declare_namespace`` + to display package name. + + +v67.3.1 +======= + + +Misc +---- +* #3823: Fixes ``egg_info`` code path triggered during integration with ``pip``. + + +v67.3.0 +======= + + +Deprecations +------------ +* #3434: Added deprecation warning for ``pkg_resources.declare_namespace``. + Users that wish to implement namespace packages, are recommended to follow the + practice described in PEP 420 and omit the ``__init__.py`` file entirely. + +Changes +------- +* #3792: Reduced usage of ``pkg_resources`` in ``setuptools`` via internal + restructuring and refactoring. + +Misc +---- +* #3822: Added debugging tips for "editable mode" and update related docs. + Instead of using a custom exception to display the help message to the user, + ``setuptools`` will now use a warning and re-raise the original exception. +* #3822: Added clarification about ``editable_wheel`` and ``dist_info`` CLI commands: + they should not be called directly with ``python setup.py ...``. + Instead they are reserved for internal use of ``setuptools`` (effectively as "private" commands). + Users are recommended to rely on build backend APIs (:pep:`517` and :pep:`660`) + exposed by ``setuptools.build_meta``. + + +v67.2.0 +======= + + +Changes +------- +* #3809: Merge with distutils@8c3c3d29, including fix for ``sysconfig.get_python_inc()`` (pypa/distutils#178), fix for segfault on MinGW (pypa/distutils#196), and better ``has_function`` support (pypa/distutils#195, #3648). + + +v67.1.0 +======= + + +Changes +------- +* #3795: Ensured that ``__file__`` is an absolute path when executing ``setup.py`` as + part of ``setuptools.build_meta``. + +Misc +---- +* #3798: Updated validations for ``pyproject.toml`` using ``validate-pyproject==0.12.1`` + to allow stub packages (:pep:`561`) to be listed in ``tool.setuptools.packages`` + and ``tool.setuptools.package-dir``. + + +v67.0.0 +======= + + +Breaking Changes +---------------- +* #3741: Removed patching of ``distutils._msvccompiler.gen_lib_options`` + for compatibility with Numpy < 1.11.2 -- by :user:`mgorny` +* #3790: Bump vendored version of :pypi:`packaging` to 23.0 + (:pypi:`pyparsing` is no longer required and was removed). + As a consequence, users will experience a more strict parsing of requirements. + Specifications that don't comply with :pep:`440` and :pep:`508` will result + in build errors. + + +v66.1.1 +======= + + +Misc +---- +* #3782: Fixed problem with ``file`` directive in ``tool.setuptools.dynamic`` + (``pyproject.toml``) when value is a simple string instead of list. + + +v66.1.0 +======= + + +Changes +------- +* #3685: Fix improper usage of deprecated/removed ``pkgutil`` APIs in Python 3.12+. +* #3779: Files referenced by ``file:`` in ``setup.cfg`` and by ``project.readme.file``, + ``project.license.file`` or ``tool.setuptools.dynamic.*.file`` in + ``pyproject.toml`` are now automatically included in the generated sdists. + +Misc +---- +* #3776: Added note about using the ``--pep-517`` flag with ``pip`` to workaround + ``InvalidVersion`` errors for packages that are already installed in the system. + + +v66.0.0 +======= + + +Breaking Changes +---------------- +* #2497: Support for PEP 440 non-conforming versions has been removed. Environments containing packages with non-conforming versions may fail or the packages may not be recognized. + +Changes +------- +* #3769: Replace 'appdirs' with 'platformdirs'. + + +v65.7.0 +======= + + +Changes +------- +* #3594: Added ``htmlcov`` to FlatLayoutModuleFinder.DEFAULT_EXCLUDE -- by :user:`demianbrecht` +* #3667: Added a human-readable error description when ``.egg-info`` directory is not writeable -- by :user:`droodev` + +Misc +---- +* #3713: Fixed incomplete ``getattr`` statement that caused problems when accessing + undefined attribute. + + +v65.6.3 +======= + + +Misc +---- +* #3709: Fix condition to patch ``distutils.dist.log`` to only apply when using + ``distutils`` from the stdlib. + + +v65.6.2 +======= + +No significant changes. + + +v65.6.1 +======= + + +Documentation changes +--------------------- +* #3689: Documented that ``distutils.cfg`` might be ignored unless + ``SETUPTOOLS_USE_DISTUTILS=stdlib``. + +Misc +---- +* #3678: Improve clib builds reproducibility by sorting sources -- by :user:`danigm` +* #3684: Improved exception/traceback when invalid entry-points are specified. +* #3690: Fixed logging errors: 'underlying buffer has been detached' (issue #1631). +* #3693: Merge pypa/distutils@3e9d47e with compatibility fix for distutils.log.Log. +* #3695, #3697, #3698, #3699: Changed minor text details (spelling, spaces ...) +* #3696: Removed unnecessary ``coding: utf-8`` annotations +* #3704: Fixed temporary build directories interference with auto-discovery. + + +v65.6.0 +======= + + +Changes +------- +* #3674: Sync with pypa/distutils@e0787fa, including pypa/distutils#183 updating distutils to use the Python logging framework. + + +v65.5.1 +======= + + +Misc +---- +* #3638: Drop a test dependency on the ``mock`` package, always use :external+python:py:mod:`unittest.mock` -- by :user:`hroncok` +* #3659: Fixed REDoS vector in package_index -- by :user:`SCH227` + + +v65.5.0 +======= + + +Changes +------- +* #3624: Fixed editable install for multi-module/no-package ``src``-layout projects. +* #3626: Minor refactorings to support distutils using stdlib logging module. + +Documentation changes +--------------------- +* #3419: Updated the example version numbers to be compliant with PEP-440 on the "Specifying Your Project’s Version" page of the user guide. + +Misc +---- +* #3569: Improved information about conflicting entries in the current working directory + and editable install (in documentation and as an informational warning). +* #3576: Updated version of ``validate_pyproject``. + + +v65.4.1 +======= + + +Misc +---- +* #3613: Fixed encoding errors in ``expand.StaticModule`` when system default encoding doesn't match expectations for source files. +* #3617: Merge with pypa/distutils@6852b20 including fix for pypa/distutils#181. + + +v65.4.0 +======= + + +Changes +------- +* #3609: Merge with pypa/distutils@d82d926 including support for DIST_EXTRA_CONFIG in pypa/distutils#177. + + +v65.3.0 +======= + + +Changes +------- +* #3547: Stop ``ConfigDiscovery.analyse_name`` from splatting the ``Distribution.name`` attribute -- by :user:`jeamland` + +Documentation changes +--------------------- +* #3554: Changed requires to requests in the pyproject.toml example in the :doc:`Dependency management section of the Quickstart guide ` -- by :user:`mfbutner` + +Misc +---- +* #3561: Fixed accidental name matching in editable hooks. + + +v65.2.0 +======= + + +Changes +------- +* #3553: Sync with pypa/distutils@22b9bcf, including fixed cross-compiling support and removing deprecation warning per pypa/distutils#169. + + +v65.1.1 +======= + + +Misc +---- +* #3551: Avoided circular imports in meta path finder for editable installs when a + missing module has the same name as its parent. + + +v65.1.0 +======= + + +Changes +------- +* #3536: Remove monkeypatching of msvc9compiler. + +Documentation changes +--------------------- +* #3538: Corrected documentation on how to use the ``legacy-editable`` mode. + + +v65.0.2 +======= + + +Misc +---- +* #3505: Restored distutils msvccompiler and msvc9compiler modules and marked as deprecated (pypa/distutils@c802880). + + +v65.0.1 +======= + + +Documentation changes +--------------------- +* #3529: Added clarification to :doc:`/userguide/quickstart` about support + to ``setup.py``. + +Misc +---- +* #3526: Fixed backward compatibility of editable installs and custom ``build_ext`` + commands inheriting directly from ``distutils``. +* #3528: Fixed ``buid_meta.prepare_metadata_for_build_wheel`` when + given ``metadata_directory`` is ``"."``. + + +v65.0.0 +======= + + +Breaking Changes +---------------- +* #3505: Removed 'msvccompiler' and 'msvc9compiler' modules from distutils. +* #3521: Remove bdist_msi and bdist_wininst commands, which have been deprecated since Python 3.9. Use older Setuptools for these behaviors if needed. + +Documentation changes +--------------------- +* #3519: Changed the note in ``keywords`` documentation regarding editable installations + to specify which ``setuptools`` version require a minimal ``setup.py`` file or not. + + +v64.0.3 +======= + + +Misc +---- +* #3515: Fixed "inline" file copying for editable installations and + optional extensions. +* #3517: Fixed ``editable_wheel`` to ensure other commands are finalized before using + them. This should prevent errors with plugins trying to use different commands + or reinitializing them. +* #3517: Augmented filter to prevent transient/temporary source files from being + considered ``package_data`` or ``data_files``. + + +v64.0.2 +======= + + +Misc +---- +* #3506: Suppress errors in custom ``build_py`` implementations when running editable + installs in favor of a warning indicating what is the most appropriate + migration path. + This is a *transitional* measure. Errors might be raised in future versions of + ``setuptools``. +* #3512: Added capability of handling namespace packages created + accidentally/purposefully via discovery configuration during editable installs. + This should emulate the behaviour of a non-editable installation. + + +v64.0.1 +======= + + +Misc +---- +* #3497: Fixed ``editable_wheel`` for legacy namespaces. +* #3502: Fixed issue with editable install and single module distributions. +* #3503: Added filter to ignore external ``.egg-info`` files in manifest. + + Some plugins might rely on the fact that the ``.egg-info`` directory is + produced inside the project dir, which may not be the case in editable installs + (the ``.egg-info`` directory is produced inside the metadata directory given by + the build frontend via PEP 660 hooks). + + +v64.0.0 +======= + + +Deprecations +------------ +* #3380: Passing some types of parameters via ``--global-option`` to setuptools PEP 517/PEP 660 backend + is now considered deprecated. The user can pass the same arbitrary parameter + via ``--build-option`` (``--global-option`` is now reserved for flags like + ``--verbose`` or ``--quiet``). + + Both ``--build-option`` and ``--global-option`` are supported as a **transitional** effort (a.k.a. "escape hatch"). + In the future a proper list of allowed ``config_settings`` may be created. + +Breaking Changes +---------------- +* #3265: Added implementation for *editable install* hooks (PEP 660). + + By default the users will experience a *lenient* behavior which prioritises + the ability of the users of changing the distributed packages (e.g. adding new + files or removing old ones). + But they can also opt into a *strict* mode, which will try to replicate as much + as possible the behavior of the package as if it would be normally installed by + end users. The *strict* editable installation is not able to detect if files + are added or removed from the project (a new installation is required). + + This implementation might also affect plugins and customizations that assume + certain ``build`` subcommands don't run during editable installs or that they + always copy files to the temporary build directory. + + .. important:: + The *editable* aspect of the *editable install* supported this implementation + is restricted to the Python modules contained in the distributed package. + Changes in binary extensions (e.g. C/C++), entry-point definitions, + dependencies, metadata, datafiles, etc may require a new installation. + +Changes +------- +* #3380: Improved the handling of the ``config_settings`` parameter in both PEP 517 and + PEP 660 interfaces: + + - It is possible now to pass both ``--global-option`` and ``--build-option``. + As discussed in #1928, arbitrary arguments passed via ``--global-option`` + should be placed before the name of the setuptools' internal command, while + ``--build-option`` should come after. + + - Users can pass ``editable-mode=strict`` to select a strict behaviour for the + editable installation. +* #3392: Exposed ``get_output_mapping()`` from ``build_py`` and ``build_ext`` + subcommands. This interface is reserved for the use of ``setuptools`` + Extensions and third part packages are explicitly disallowed to calling it. + However, any implementation overwriting ``build_py`` or ``build_ext`` are + required to honour this interface. +* #3412: Added ability of collecting source files from custom build sub-commands to + ``sdist``. This allows plugins and customization scripts to automatically + add required source files in the source distribution. +* #3414: Users can *temporarily* specify an environment variable + ``SETUPTOOLS_ENABLE_FEATURES=legacy-editable`` as a escape hatch for the + :pep:`660` behavior. This setting is **transitional** and may be removed in the + future. +* #3484: Added *transient* ``compat`` mode to editable installs. + This more will be temporarily available (to facilitate the transition period) + for those that want to emulate the behavior of the ``develop`` command + (in terms of what is added to ``sys.path``). + This mode is provided "as is", with limited support, and will be removed in + future versions of ``setuptools``. + +Documentation changes +--------------------- +* #3414: Updated :doc:`Development Mode ` to reflect on the + implementation of :pep:`660`. + + +v63.4.3 +======= + + +Misc +---- +* #3496: Update to pypa/distutils@b65aa40 including more robust support for library/include dir handling in msvccompiler (pypa/distutils#153) and test suite improvements. + + +v63.4.2 +======= + + +Misc +---- +* #3453: Bump vendored version of :pypi:`pyparsing` to 3.0.9. +* #3481: Add warning for potential ``install_requires`` and ``extras_require`` + misconfiguration in ``setup.cfg`` +* #3487: Modified ``pyproject.toml`` validation exception handling to + make relevant debugging information easier to spot. + + +v63.4.1 +======= + + +Misc +---- +* #3482: Sync with pypa/distutils@274758f1c02048d295efdbc13d2f88d9923547f8, restoring compatibility shim in bdist.format_commands. + + +v63.4.0 +======= + + +Changes +------- +* #2971: ``upload_docs`` command is deprecated once again. + +Documentation changes +--------------------- +* #3443: Installed ``sphinx-hoverxref`` extension to show tooltips on internal an external references. + -- by :user:`humitos` +* #3444: Installed ``sphinx-notfound-page`` extension to generate nice 404 pages. + -- by :user:`humitos` + +Misc +---- +* #3480: Merge with pypa/distutils@c397f4c + + +v63.3.0 +======= + + +Changes +------- +* #3475: Merge with pypa/distutils@129480b, including substantial delinting and cleanup, some refactoring around compiler logic, better messaging in cygwincompiler (pypa/distutils#161). + + +v63.2.0 +======= + + +Changes +------- +* #3395: Included a performance optimization: ``setuptools.build_meta`` no longer tries + to :func:`compile` the setup script code before :func:`exec`-ing it. + +Misc +---- +* #3435: Corrected issue in macOS framework builds on Python 3.9 not installed by homebrew (pypa/distutils#158). + + +v63.1.0 +======= + + +Changes +------- +* #3430: Merge with pypa/distutils@152c13d including pypa/distutils#155 (improved compatibility for editable installs on homebrew Python 3.9), pypa/distutils#150 (better handling of runtime_library_dirs on cygwin), and pypa/distutils#151 (remove warnings for namespace packages). + + +v63.0.0 +======= + + +Breaking Changes +---------------- +* #3421: Drop setuptools' support for installing an entrypoint extra requirements at load time: + - the functionality has been broken since v60.8.0. + - the mechanism to do so is deprecated (``fetch_build_eggs``). + - that use case (e.g. a custom command class entrypoint) is covered by making sure the necessary build requirements are declared. + +Documentation changes +--------------------- +* #3305: Updated the example pyproject.toml -- by :user:`jacalata` +* #3394: This updates the documentation for the ``file_finders`` hook so that + the logging recommendation aligns with the suggestion to not use + ``distutils`` directly. +* #3397: Fix reference for ``keywords`` to point to the Core Metadata Specification + instead of PEP 314 (the live standard is kept always up-to-date and + consolidates several PEPs together in a single document). +* #3402: Reordered the User Guide's Table of Contents -- by :user:`codeandfire` + + +v62.6.0 +======= + + +Changes +------- +* #3253: Enabled using ``file:`` for requirements in setup.cfg -- by :user:`akx` + (this feature is currently considered to be in **beta** stage). +* #3255: Enabled using ``file:`` for dependencies and optional-dependencies in pyproject.toml -- by :user:`akx` + (this feature is currently considered to be in **beta** stage). +* #3391: Updated ``attr:`` to also extract simple constants with type annotations -- by :user:`karlotness` + + +v62.5.0 +======= + + +Changes +------- +* #3347: Changed warnings and documentation notes about *experimental* aspect of ``pyproject.toml`` configuration: + now ``[project]`` is a fully supported configuration interface, but the ``[tool.setuptools]`` table + and sub-tables are still considered to be in **beta** stage. +* #3383: In _distutils_hack, suppress/undo the use of local distutils when select tests are imported in CPython. + +Documentation changes +--------------------- +* #3368: Added documentation page about extension modules -- by :user:`mkoeppe` +* #3371: Moved documentation from ``/userguide/commands`` to ``/depracted/commands``. + This change was motived by the fact that running ``python setup.py`` directly is + considered a deprecated practice. +* #3372: Consolidated sections about ``sdist`` contents and ``MANIFEST.in`` into a single page. + + Added a simple ``MANIFEST.in`` example. +* #3373: Moved remarks about using :pypi:`Cython` to the newly created page for + extension modules. +* #3374: Added clarification that using ``python setup.py egg_info`` commands to + manage project versions is only supported in a *transitional* basis, and + that eventually ``egg_info`` will be deprecated. + + Reorganized sections with tips for managing versions. +* #3378: Updated ``Quickstart`` docs to make it easier to follow for beginners. + +Misc +---- +* #3385: Modules used to parse and evaluate configuration from ``pyproject.toml`` files are + intended for internal use only and that not part of the public API. + + +v62.4.0 +======= + + +Changes +------- +* #3256: Added setuptools.command.build command to match distutils.command.build -- by :user:`isuruf` +* #3366: Merge with pypa/distutils@75ed79d including reformat using black, fix for Cygwin support (pypa/distutils#139), and improved support for cross compiling (pypa/distutils#144 and pypa/distutils#145). + +Documentation changes +--------------------- +* #3355: Changes to the User Guide's Entry Points page -- by :user:`codeandfire` +* #3361: Further minor corrections to the Entry Points page -- by :user:`codeandfire` +* #3363: Rework some documentation pages to de-emphasize ``distutils`` and the history + of packaging in the Python ecosystem. The focus of these changes is to make the + documentation easier to read for new users. +* #3364: Update documentation about dependency management, removing mention to + the deprecated ``dependency_links`` and adding some small improvements. +* #3367: Extracted text about automatic resource extraction and the zip-safe flag + from ``userguide/miscellaneous`` to ``deprecated/resource_extraction`` and + ``deprecated/zip_safe``. + + Extracted text about additional metadata files from + ``userguide/miscellaneous`` into the existing ``userguide/extension`` + document. + + Updated ``userguide/extension`` to better reflect the status of the + setuptools project. + + Removed ``userguide/functionalities_rewrite`` (a virtually empty part of the + docs). + + +v62.3.4 +======= + + +Documentation changes +--------------------- +* #3349: Fixed two small issues preventing docs from building locally -- by :user:`codeandfire` +* #3350: Added note explaining ``package_data`` glob pattern matching for dotfiles -- by :user:`comabrewer` +* #3358: Clarify the role of the ``package_dir`` configuration. + +Misc +---- +* #3354: Improve clarity in warning about unlisted namespace packages. + + +v62.3.3 +======= + + +Documentation changes +--------------------- +* #3331: Replaced single backticks with double ones in ``CHANGES.rst`` -- by :user:`codeandfire` +* #3332: Fixed grammar/typos, modified example directory trees for src-layout and flat-layout -- by :user:`codeandfire` +* #3335: Changes to code snippets and other examples in the Data Files page of the User Guide -- by :user:`codeandfire` + +Misc +---- +* #3336: Modified ``test_setup_install_includes_dependencies`` to work with custom ``PYTHONPATH`` –- by :user:`hroncok` + + +v62.3.2 +======= + + +Misc +---- +* #3328: Include a first line summary to some of the existing multi-line warnings. + + +v62.3.1 +======= + + +Misc +---- +* #3320: Fixed typo which causes ``namespace_packages`` to raise an error instead of + warning. + + +v62.3.0 +======= + + +Deprecations +------------ +* #3262: Formally added deprecation messages for ``namespace_packages``. + The methodology that uses ``pkg_resources`` and ``namespace_packages`` for + creating namespaces was already discouraged by the :doc:`setuptools docs + ` and the + :doc:`Python Packaging User Guide `, + therefore this change just make the deprecation more official. + Users can consider migrating to native/implicit namespaces (as introduced in + :pep:`420`). +* #3308: Relying on ``include_package_data`` to ensure sub-packages are automatically + added to the build wheel distribution (as "data") is now considered a + deprecated practice. + + This behaviour was controversial and caused inconsistencies (#3260). + + Instead, projects are encouraged to properly configure ``packages`` or use + discovery tools. General information can be found in :doc:`userguide/package_discovery`. + +Changes +------- +* #1806: Allowed recursive globs (``**``) in ``package_data``. -- by :user:`nullableVoidPtr` +* #3206: Fixed behaviour when both ``install_requires`` (in ``setup.py``) and + ``dependencies`` (in ``pyproject.toml``) are specified. + The configuration in ``pyproject.toml`` will take precedence over ``setup.py`` + (in accordance with PEP 621). A warning was added to inform users. + +Documentation changes +--------------------- +* #3307: Added introduction to references/keywords. + + Added deprecation tags to test kwargs. + + Moved userguide/keywords to deprecated section. + + Clarified in deprecated doc what keywords came from distutils and which were added or changed by setuptools. + +Misc +---- +* #3274: Updated version of vendored ``pyparsing`` to 3.0.8 to avoid problems with + upcoming deprecation in Python 3.11. +* #3292: Added warning about incompatibility with old versions of + ``importlib-metadata``. + + +v62.2.0 +======= + + +Changes +------- +* #3299: Optional metadata fields are now truly optional. Includes merge with pypa/distutils@a7cfb56 per pypa/distutils#138. + +Misc +---- +* #3282: Added CI cache for ``setup.cfg`` examples used when testing ``setuptools.config``. + + +v62.1.0 +======= + + +Changes +------- +* #3258: Merge pypa/distutils@5229dad46b. + +Misc +---- +* #3249: Simplified ``package_dir`` obtained via auto-discovery. + + +v62.0.0 +======= + + +Breaking Changes +---------------- +* #3151: Made ``setup.py develop --user`` install to the user site packages directory even if it is disabled in the current interpreter. + +Changes +------- +* #3153: When resolving requirements use both canonical and normalized names -- by :user:`ldaniluk` +* #3167: Honor unix file mode in ZipFile when installing wheel via ``install_as_egg`` -- by :user:`delijati` + +Misc +---- +* #3088: Fixed duplicated tag with the ``dist-info`` command. +* #3247: Fixed problem preventing ``readme`` specified as dynamic in ``pyproject.toml`` + from being dynamically specified in ``setup.py``. + + +v61.3.1 +======= + + +Misc +---- +* #3233: Included missing test file ``setupcfg_examples.txt`` in ``sdist``. +* #3233: Added script that allows developers to download ``setupcfg_examples.txt`` prior to + running tests. By caching these files it should be possible to run the test suite + offline. + + +v61.3.0 +======= + + +Changes +------- +* #3229: Disabled automatic download of ``trove-classifiers`` to facilitate reproducibility. + +Misc +---- +* #3229: Updated ``pyproject.toml`` validation via ``validate-pyproject`` v0.7.1. +* #3229: New internal tool made available for updating the code responsible for + the validation of ``pyproject.toml``. + This tool can be executed via ``tox -e generate-validation-code``. + + +v61.2.0 +======= + + +Changes +------- +* #3215: Ignored a subgroup of invalid ``pyproject.toml`` files that use the ``[project]`` + table to specify only ``requires-python`` (**transitional**). + + .. warning:: + Please note that future releases of setuptools will halt the build process + if a ``pyproject.toml`` file that does not match :doc:`the PyPA Specification + ` is given. +* #3215: Updated ``pyproject.toml`` validation, as generated by ``validate-pyproject==0.6.1``. +* #3218: Prevented builds from erroring if the project specifies metadata via + ``pyproject.toml``, but uses other files (e.g. ``setup.py``) to complement it, + without setting ``dynamic`` properly. + + .. important:: + This is a **transitional** behaviour. + Future releases of ``setuptools`` may simply ignore externally set metadata + not backed by ``dynamic`` or even halt the build with an error. +* #3224: Merge changes from pypa/distutils@e1d5c9b1f6 + +Documentation changes +--------------------- +* #3217: Fixed typo in ``pyproject.toml`` example in Quickstart -- by :user:`pablo-cardenas`. + +Misc +---- +* #3223: Fixed missing requirements with environment markers when + ``optional-dependencies`` is set in ``pyproject.toml``. + + +v61.1.1 +======= + + +Misc +---- +* #3212: Fixed missing dependencies when running ``setup.py install``. + Note that calling ``setup.py install`` directly is still deprecated and + will be removed in future versions of ``setuptools``. + Please check the release notes for :ref:`setup_install_deprecation_note`. + + +v61.1.0 +======= + + +Deprecations +------------ +* #3206: Changed ``setuptools.convert_path`` to an internal function that is not exposed + as part of setuptools API. + Future releases of ``setuptools`` are likely to remove this function. + +Changes +------- +* #3202: Changed behaviour of auto-discovery to not explicitly expand ``package_dir`` + for flat-layouts and to not use relative paths starting with ``./``. +* #3203: Prevented ``pyproject.toml`` parsing from overwriting + ``dist.include_package_data`` explicitly set in ``setup.py`` with default + value. +* #3208: Added a warning for non existing files listed with the ``file`` directive in + ``setup.cfg`` and ``pyproject.toml``. +* #3208: Added a default value for dynamic ``classifiers`` in ``pyproject.toml`` when + files are missing and errors being ignored. +* #3211: Disabled auto-discovery when distribution class has a ``configuration`` + attribute (e.g. when the ``setup.py`` script contains ``setup(..., + configuration=...)``). This is done to ensure extension-only packages created + with ``numpy.distutils.misc_util.Configuration`` are not broken by the safe + guard + behaviour to avoid accidental multiple top-level packages in a flat-layout. + + .. note:: + Users that don't set ``packages``, ``py_modules``, or ``configuration`` are + still likely to observe the auto-discovery behavior, which may halt the + build if the project contains multiple directories and/or multiple Python + files directly under the project root. + + To disable auto-discovery please explicitly set either ``packages`` or + ``py_modules``. Alternatively you can also configure :ref:`custom-discovery`. + + +v61.0.0 +======= + + +Deprecations +------------ +* #3068: Deprecated ``setuptools.config.read_configuration``, + ``setuptools.config.parse_configuration`` and other functions or classes + from ``setuptools.config``. + + Users that still need to parse and process configuration from ``setup.cfg`` can + import a direct replacement from ``setuptools.config.setupcfg``, however this + module is transitional and might be removed in the future + (the ``setup.cfg`` configuration format itself is likely to be deprecated in the future). + +Breaking Changes +---------------- +* #2894: If you purposefully want to create an *"empty distribution"*, please be aware + that some Python files (or general folders) might be automatically detected and + included. + + Projects that currently don't specify both ``packages`` and ``py_modules`` in their + configuration and contain extra folders or Python files (not meant for distribution), + might see these files being included in the wheel archive or even experience + the build to fail. + + You can check details about the automatic discovery (and how to configure a + different behaviour) in :doc:`/userguide/package_discovery`. +* #3067: If the file ``pyproject.toml`` exists and it includes project + metadata/config (via ``[project]`` table or ``[tool.setuptools]``), + a series of new behaviors that are not backward compatible may take place: + + - The default value of ``include_package_data`` will be considered to be ``True``. + - Setuptools will attempt to validate the ``pyproject.toml`` file according + to PEP 621 specification. + - The values specified in ``pyproject.toml`` will take precedence over those + specified in ``setup.cfg`` or ``setup.py``. + +Changes +------- +* #2887: **[EXPERIMENTAL]** Added automatic discovery for ``py_modules`` and ``packages`` + -- by :user:`abravalheri`. + + Setuptools will try to find these values assuming that the package uses either + the *src-layout* (a ``src`` directory containing all the packages or modules), + the *flat-layout* (package directories directly under the project root), + or the *single-module* approach (an isolated Python file, directly under + the project root). + + The automatic discovery will also respect layouts that are explicitly + configured using the ``package_dir`` option. + + For backward-compatibility, this behavior will be observed **only if both** + ``py_modules`` **and** ``packages`` **are not set**. + (**Note**: specifying ``ext_modules`` might also prevent auto-discover from + taking place) + + If setuptools detects modules or packages that are not supposed to be in the + distribution, please manually set ``py_modules`` and ``packages`` in your + ``setup.cfg`` or ``setup.py`` file. + If you are using a *flat-layout*, you can also consider switching to + *src-layout*. +* #2887: **[EXPERIMENTAL]** Added automatic configuration for the ``name`` metadata + -- by :user:`abravalheri`. + + Setuptools will adopt the name of the top-level package (or module in the case + of single-module distributions), **only when** ``name`` **is not explicitly + provided**. + + Please note that it is not possible to automatically derive a single name when + the distribution consists of multiple top-level packages or modules. +* #3066: Added vendored dependencies for :pypi:`tomli`, :pypi:`validate-pyproject`. + + These dependencies are used to read ``pyproject.toml`` files and validate them. +* #3067: **[EXPERIMENTAL]** When using ``pyproject.toml`` metadata, + the default value of ``include_package_data`` is changed to ``True``. +* #3068: **[EXPERIMENTAL]** Add support for ``pyproject.toml`` configuration + (as introduced by :pep:`621`). Configuration parameters not covered by + standards are handled in the ``[tool.setuptools]`` sub-table. + + In the future, existing ``setup.cfg`` configuration + may be automatically converted into the ``pyproject.toml`` equivalent before taking effect + (as proposed in #1688). Meanwhile users can use automated tools like + :pypi:`ini2toml` to help in the transition. + + Please note that the legacy backend is not guaranteed to work with + ``pyproject.toml`` configuration. + + -- by :user:`abravalheri` +* #3125: Implicit namespaces (as introduced in :pep:`420`) are now considered by default + during :doc:`package discovery `, when + ``setuptools`` configuration and project metadata are added to the + ``pyproject.toml`` file. + + To disable this behaviour, use ``namespaces = False`` when explicitly setting + the ``[tool.setuptools.packages.find]`` section in ``pyproject.toml``. + + This change is backwards compatible and does not affect the behaviour of + configuration done in ``setup.cfg`` or ``setup.py``. +* #3152: **[EXPERIMENTAL]** Added support for ``attr:`` and ``cmdclass`` configurations + in ``setup.cfg`` and ``pyproject.toml`` when ``package_dir`` is implicitly + found via auto-discovery. +* #3178: Postponed importing ``ctypes`` when hiding files on Windows. + This helps to prevent errors in systems that might not have ``libffi`` installed. +* #3179: Merge with pypa/distutils@267dbd25ac + +Documentation changes +--------------------- +* #3172: Added initial documentation about configuring ``setuptools`` via ``pyproject.toml`` + (using standard project metadata). + +Misc +---- +* #3065: Refactored ``setuptools.config`` by separating configuration parsing (specific + to the configuration file format, e.g. ``setup.cfg``) and post-processing + (which includes directives such as ``file:`` that can be used across different + configuration formats). + + +v60.10.0 +======== + + +Changes +------- +* #2971: Deprecated upload_docs command, to be removed in the future. +* #3137: Use samefile from stdlib, supported on Windows since Python 3.2. +* #3170: Adopt nspektr (vendored) to implement Distribution._install_dependencies. + +Documentation changes +--------------------- +* #3144: Added documentation on using console_scripts from setup.py, which was previously only shown in setup.cfg -- by :user:`xhlulu` +* #3148: Added clarifications about ``MANIFEST.in``, that include links to PyPUG docs + and more prominent mentions to using a revision control system plugin as an + alternative. +* #3148: Removed mention to ``pkg_resources`` as the recommended way of accessing data + files, in favour of importlib.resources. + Additionally more emphasis was put on the fact that *package data files* reside + **inside** the *package directory* (and therefore should be *read-only*). + +Misc +---- +* #3120: Added workaround for intermittent failures of backend tests on PyPy. + These tests now are marked with `XFAIL + `_, instead of erroring + out directly. +* #3124: Improved configuration for :pypi:`rst-linker` (extension used to build the + changelog). +* #3133: Enhanced isolation of tests using virtual environments - PYTHONPATH is not leaking to spawned subprocesses -- by :user:`befeleme` +* #3147: Added options to provide a pre-built ``setuptools`` wheel or sdist for being + used during tests with virtual environments. + Paths for these pre-built distribution files can now be set via the environment + variables: ``PRE_BUILT_SETUPTOOLS_SDIST`` and ``PRE_BUILT_SETUPTOOLS_WHEEL``. + + +v60.9.3 +======= + + +Misc +---- +* #3093: Repaired automated release process. + + +v60.9.2 +======= + + +Misc +---- +* #3035: When loading distutils from the vendored copy, rewrite ``__name__`` to ensure consistent importing from inside and out. + + +v60.9.1 +======= + + +Misc +---- +* #3102: Prevent vendored importlib_metadata from loading distributions from older importlib_metadata. +* #3103: Fixed issue where string-based entry points would be omitted. +* #3107: Bump importlib_metadata to 4.11.1 addressing issue with parsing requirements in egg-info as found in PyPy. + + +v60.9.0 +======= + + +Changes +------- +* #2876: In the build backend, allow single config settings to be supplied. +* #2993: Removed workaround in distutils hack for get-pip now that pypa/get-pip#137 is closed. +* #3085: Setuptools no longer relies on ``pkg_resources`` for entry point handling. +* #3098: Bump vendored packaging to 21.3. +* Removed bootstrap script. + +.. warning:: Users trying to install the unmaintained :pypi:`pathlib` backport + from PyPI/``sdist``/source code may find problems when using ``setuptools >= 60.9.0``. + This happens because during the installation, the unmaintained + implementation of ``pathlib`` is loaded and may cause compatibility problems + (it does not expose the same public API defined in the Python standard library). + + Whenever possible users should avoid declaring ``pathlib`` as a dependency. + An alternative is to pre-build a wheel for ``pathlib`` using a separated + virtual environment with an older version of setuptools and install the + library directly from the pre-built wheel. + + +v60.8.2 +======= + + +Misc +---- +* #3091: Make ``concurrent.futures`` import lazy in vendored ``more_itertools`` + package to a avoid importing threading as a side effect (which caused + `gevent/gevent#1865 `__). + -- by :user:`maciejp-ro` + + +v60.8.1 +======= + + +Misc +---- +* #3084: When vendoring jaraco packages, ensure the namespace package is converted to a simple package to support zip importer. + + +v60.8.0 +======= + + +Changes +------- +* #3085: Setuptools now vendors importlib_resources and importlib_metadata and jaraco.text. Setuptools no longer relies on pkg_resources for ensure_directory nor parse_requirements. + + +v60.7.1 +======= + + +Misc +---- +* #3072: Remove lorem_ipsum from jaraco.text when vendored. + + +v60.7.0 +======= + + +Changes +------- +* #3061: Vendored jaraco.text and use line processing from that library in pkg_resources. + +Misc +---- +* #3070: Avoid AttributeError in easy_install.create_home_path when sysconfig.get_config_vars values are not strings. + + +v60.6.0 +======= + + +Changes +------- +* #3043: Merge with pypa/distutils@bb018f1ac3 including consolidated behavior in sysconfig.get_platform (pypa/distutils#104). +* #3057: Don't include optional ``Home-page`` in metadata if no ``url`` is specified. -- by :user:`cdce8p` +* #3062: Merge with pypa/distutils@b53a824ec3 including improved support for lib directories on non-x64 Windows builds. + +Documentation changes +--------------------- +* #2897: Added documentation about wrapping ``setuptools.build_meta`` in a in-tree + custom backend. This is a :pep:`517`-compliant way of dynamically specifying + build dependencies (e.g. when platform, OS and other markers are not enough). + -- by :user:`abravalheri` +* #3034: Replaced occurrences of the defunct distutils-sig mailing list with pointers + to GitHub Discussions. + -- by :user:`ashemedai` +* #3056: The documentation has stopped suggesting to add ``wheel`` to + :pep:`517` requirements -- by :user:`webknjaz` + +Misc +---- +* #3054: Used Py3 syntax ``super().__init__()`` -- by :user:`imba-tjd` + + +v60.5.4 +======= + + +Misc +---- +* #3009: Remove filtering of distutils warnings. +* #3031: Suppress distutils replacement when building or testing CPython. + + +v60.5.3 +======= + + +Misc +---- +* #3026: Honor sysconfig variables in easy_install. + + +v60.5.2 +======= + + +Misc +---- +* #2993: In _distutils_hack, for get-pip, simulate existence of setuptools. + + +v60.5.1 +======= + + +Misc +---- +* #2918: Correct support for Python 3 native loaders. + + +v60.5.0 +======= + + +Changes +------- +* #2990: Set the ``.origin`` attribute of the ``distutils`` module to the module's ``__file__``. + + +v60.4.0 +======= + + +Changes +------- +* #2839: Removed ``requires`` sorting when installing wheels as an egg dir. +* #2953: Fixed a bug that easy install incorrectly parsed Python 3.10 version string. +* #3006: Fixed startup performance issue of Python interpreter due to imports of + costly modules in ``_distutils_hack`` -- by :user:`tiran` + +Documentation changes +--------------------- +* #2674: Added link to additional resources on packaging in Quickstart guide +* #3008: "In-tree" Sphinx extension for "favicons" replaced with ``sphinx-favicon``. +* #3008: SVG images (logo, banners, ...) optimised with the help of the ``scour`` + package. + +Misc +---- +* #2862: Added integration tests that focus on building and installing some packages in + the Python ecosystem via ``pip`` -- by :user:`abravalheri` +* #2952: Modified "vendoring" logic to keep license files. +* #2968: Improved isolation for some tests that where inadvertently using the project + root for builds, and therefore creating directories (e.g. ``build``, ``dist``, + ``*.egg-info``) that could interfere with the outcome of other tests + -- by :user:`abravalheri`. +* #2968: Introduced new test fixtures ``venv``, ``venv_without_setuptools``, + ``bare_venv`` that rely on the ``jaraco.envs`` package. + These new test fixtures were also used to remove the (currently problematic) + dependency on the ``pytest_virtualenv`` plugin. +* #2968: Removed ``tmp_src`` test fixture. Previously this fixture was copying all the + files and folders under the project root, including the ``.git`` directory, + which is error prone and increases testing time. + + Since ``tmp_src`` was used to populate virtual environments (installing the + version of ``setuptools`` under test via the source tree), it was replaced by + the new ``setuptools_sdist`` and ``setuptools_wheel`` fixtures (that are build + only once per session testing and can be shared between all the workers for + read-only usage). + + +v60.3.1 +======= + + +Misc +---- +* #3002: Suppress AttributeError when detecting get-pip. + + +v60.3.0 +======= + + +Changes +------- +* #2993: In _distutils_hack, bypass the distutils exception for pip when get-pip is being invoked, because it imports setuptools. + +Misc +---- +* #2989: Merge with pypa/distutils@788cc159. Includes fix for config vars missing from sysconfig. + + +v60.2.0 +======= + + +Changes +------- +* #2974: Setuptools now relies on the Python logging infrastructure to log messages. Instead of using ``distutils.log.*``, use ``logging.getLogger(name).*``. +* #2987: Sync with pypa/distutils@2def21c5d74fdd2fe7996ee4030ac145a9d751bd, including fix for missing get_versions attribute (#2969), more reliance on sysconfig from stdlib. + +Misc +---- +* #2962: Avoid attempting to use local distutils when the presiding version of Setuptools on the path doesn't have one. +* #2983: Restore 'add_shim' as the way to invoke the hook. Avoids compatibility issues between different versions of Setuptools with the distutils local implementation. + + +v60.1.1 +======= + + +Misc +---- +* #2980: Bypass distutils loader when setuptools module is no longer available on sys.path. + + +v60.1.0 +======= + + +Changes +------- +* #2958: In distutils_hack, only add the metadata finder once. In ensure_local_distutils, rely on a context manager for reliable manipulation. +* #2963: Merge with pypa/distutils@a5af364910. Includes revisited fix for pypa/distutils#15 and improved MinGW/Cygwin support from pypa/distutils#77. + + +v60.0.5 +======= + + +Misc +---- +* #2960: Install schemes fall back to default scheme for headers. + + +v60.0.4 +======= + + +Misc +---- +* #2954: Merge with pypa/distutils@eba2bcd310. Adds platsubdir to config vars available for substitution. + + +v60.0.3 +======= + + +Misc +---- +* #2940: Avoid KeyError in distutils hack when pip is imported during ensurepip. + + +v60.0.2 +======= + + +Misc +---- +* #2938: Select 'posix_user' for the scheme unless falling back to stdlib, then use 'unix_user'. + + +v60.0.1 +======= + + +Misc +---- +* #2944: Add support for extended install schemes in easy_install. + + +v60.0.0 +======= + + +Breaking Changes +---------------- +* #2896: Setuptools once again makes its local copy of distutils the default. To override, set SETUPTOOLS_USE_DISTUTILS=stdlib. + + +v59.8.0 +======= + + +Changes +------- +* #2935: Merge pypa/distutils@460b59f0e68dba17e2465e8dd421bbc14b994d1f. + + +v59.7.0 +======= + + +Changes +------- +* #2930: Require Python 3.7 + + +v59.6.0 +======= + + +Changes +------- +* #2925: Merge with pypa/distutils@92082ee42c including introduction of deprecation warning on Version classes. + + +v59.5.0 +======= + + +Changes +------- +* #2914: Merge with pypa/distutils@8f2df0bf6. + + +v59.4.0 +======= + + +Changes +------- +* #2893: Restore deprecated support for newlines in the Summary field. + + +v59.3.0 +======= + + +Changes +------- +* #2902: Merge with pypa/distutils@85db7a41242. + +Misc +---- +* #2906: In ensure_local_distutils, re-use DistutilsMetaFinder to load the module. Avoids race conditions when _distutils_system_mod is employed. + + +v59.2.0 +======= + + +Changes +------- +* #2875: Introduce changes from pypa/distutils@514e9d0, including support for overrides from Debian and pkgsrc, unlocking the possibility of making SETUPTOOLS_USE_DISTUTILS=local the default again. + + +v59.1.1 +======= + + +Misc +---- +* #2885: Fixed errors when encountering LegacyVersions. + + +v59.1.0 +======= + + +Changes +------- +* #2497: Update packaging to 21.2. +* #2877: Back out deprecation of setup_requires and replace instead by a deprecation of setuptools.installer and fetch_build_egg. Now setup_requires is still supported when installed as part of a PEP 517 build, but is deprecated when an unsatisfied requirement is encountered. +* #2879: Bump packaging to 21.2. + +Documentation changes +--------------------- +* #2867: PNG/ICO images replaced with SVG in the docs. +* #2867: Added support to SVG "favicons" via "in-tree" Sphinx extension. + + +v59.0.1 +======= + + +Misc +---- +* #2880: Removed URL requirement for ``pytest-virtualenv`` in ``setup.cfg``. + PyPI rejects packages with dependencies external to itself. + Instead the test dependency was overwritten via ``tox.ini`` + + +v59.0.0 +======= + + +Deprecations +------------ +* #2856: Support for custom commands that inherit directly from ``distutils`` is + **deprecated**. Users should extend classes provided by setuptools instead. + +Breaking Changes +---------------- +* #2870: Started failing on invalid inline description with line breaks :class:`ValueError` -- by :user:`webknjaz` + +Changes +------- +* #2698: Exposed exception classes from ``distutils.errors`` via ``setuptools.errors``. +* #2866: Incorporate changes from pypa/distutils@f1b0a2b. + +Documentation changes +--------------------- +* #2227: Added sphinx theme customisations to display the new logo in the sidebar and + use its colours as "accent" in the documentation -- by :user:`abravalheri` +* #2227: Added new setuptools logo, including editable files and artwork documentation + -- by :user:`abravalheri` +* #2698: Added mentions to ``setuptools.errors`` as a way of handling custom command + errors. +* #2698: Added instructions to migrate from ``distutils.commands`` and + ``distutils.errors`` in the porting guide. +* #2871: Added a note to the docs that it is possible to install + ``setup.py``-less projects in editable mode with :doc:`pip v21.1+ + `, only having ``setup.cfg`` and ``pyproject.toml`` in + project root -- by :user:`webknjaz` + + +v58.5.3 +======= + + +Misc +---- +* #2849: Add fallback for custom ``build_py`` commands inheriting directly from + :mod:`distutils`, while still handling ``include_package_data=True`` for + ``sdist``. + + +v58.5.2 +======= + + +Misc +---- +* #2847: Suppress 'setup.py install' warning under bdist_wheel. + + +v58.5.1 +======= + + +Misc +---- +* #2846: Move PkgResourcesDeprecationWarning above implicitly-called function so that it's in the namespace when version warnings are generated in an environment that contains them. + + +v58.5.0 +======= + + +Changes +------- +* #1461: Fix inconsistency with ``include_package_data`` and ``packages_data`` in sdist + by replacing the loop breaking mechanism between the ``sdist`` and + ``egg_info`` commands -- by :user:`abravalheri` + + +v58.4.0 +======= + + +Changes +------- +* #2497: Officially deprecated PEP 440 non-compliant versions. + +Documentation changes +--------------------- +* #2832: Removed the deprecated ``data_files`` option from the example in the + declarative configuration docs -- by :user:`abravalheri` +* #2832: Change type of ``data_files`` option from ``dict`` to ``section`` in + declarative configuration docs (to match previous example) -- by + :user:`abravalheri` + + +.. _setup_install_deprecation_note: + +v58.3.0 +======= + + +Changes +------- +* #917: ``setup.py install`` and ``easy_install`` commands are now officially deprecated. Use other standards-based installers (like pip) and builders (like build). Workloads reliant on this behavior should pin to this major version of Setuptools. See `Why you shouldn't invoke setup.py directly `_ for more background. +* #1988: Deprecated the ``bdist_rpm`` command. Binary packages should be built as wheels instead. + -- by :user:`hugovk` +* #2785: Replace ``configparser``'s ``readfp`` with ``read_file``, deprecated since Python 3.2. + -- by :user:`hugovk` +* #2823: Officially deprecated support for ``setup_requires``. Users are encouraged instead to migrate to PEP 518 ``build-system.requires`` in ``pyproject.toml``. Users reliant on ``setup_requires`` should consider pinning to this major version to avoid disruption. + +Misc +---- +* #2762: Changed codecov.yml to configure the threshold to be lower + -- by :user:`tanvimoharir` + + +v58.2.0 +======= + + +Changes +------- +* #2757: Add windows arm64 launchers for scripts generated by easy_install. +* #2800: Added ``--owner`` and ``--group`` options to the ``sdist`` command, + for specifying file ownership within the produced tarball (similarly + to the corresponding distutils ``sdist`` options). + +Documentation changes +--------------------- +* #2792: Document how the legacy and non-legacy versions are compared, and reference to the PEP 440 scheme. + + +v58.1.0 +======= + + +Changes +------- +* #2796: Merge with pypa/distutils@02e9f65ab0 + + +v58.0.4 +======= + + +Misc +---- +* #2773: Retain case in setup.cfg during sdist. + + +v58.0.3 +======= + + +Misc +---- +* #2777: Build does not fail fast when ``use_2to3`` is supplied but set to a false value. + + +v58.0.2 +======= + + +Misc +---- +* #2769: Build now fails fast when ``use_2to3`` is supplied. + + +v58.0.1 +======= + + +Misc +---- +* #2765: In Distribution.finalize_options, suppress known removed entry points to avoid issues with older Setuptools. + + +v58.0.0 +======= + + +Breaking Changes +---------------- +* #2086: Removed support for 2to3 during builds. Projects should port to a unified codebase or pin to an older version of Setuptools using PEP 518 build-requires. + +Documentation changes +--------------------- +* #2746: add python_requires example + + +v57.5.0 +======= + + +Changes +------- +* #2712: Added implicit globbing support for ``[options.data_files]`` values. + +Documentation changes +--------------------- +* #2737: fix various syntax and style errors in code snippets in docs + + +v57.4.0 +======= + + +Changes +------- +* #2722: Added support for ``SETUPTOOLS_EXT_SUFFIX`` environment variable to override the suffix normally detected from the ``sysconfig`` module. + + +v57.3.0 +======= + + +Changes +------- +* #2465: Documentation is now published using the Furo theme. + + +v57.2.0 +======= + + +Changes +------- +* #2724: Added detection of Windows ARM64 build environments using the ``VSCMD_ARG_TGT_ARCH`` environment variable. + + +v57.1.0 +======= + + +Changes +------- +* #2692: Globs are now sorted in 'license_files' restoring reproducibility by eliminating variance from disk order. +* #2714: Update to distutils at pypa/distutils@e2627b7. +* #2715: Removed reliance on deprecated ssl.match_hostname by removing the ssl support. Now any index operations rely on the native SSL implementation. + +Documentation changes +--------------------- +* #2604: Revamped the backward/cross tool compatibility section to remove + some confusion. + Add some examples and the version since when ``entry_points`` are + supported in declarative configuration. + Tried to make the reading flow a bit leaner, gather some information + that were a bit dispersed. + + +v57.0.0 +======= + + +Breaking Changes +---------------- +* #2645: License files excluded via the ``MANIFEST.in`` but matched by either + the ``license_file`` (deprecated) or ``license_files`` options, + will be nevertheless included in the source distribution. - by :user:`cdce8p` + +Changes +------- +* #2628: Write long description in message payload of PKG-INFO file. - by :user:`cdce8p` +* #2645: Added ``License-File`` (multiple) to the output package metadata. + The field will contain the path of a license file, matched by the + ``license_file`` (deprecated) and ``license_files`` options, + relative to ``.dist-info``. - by :user:`cdce8p` +* #2678: Moved Setuptools' own entry points into declarative config. +* #2680: Vendored :pypi:`more_itertools` for Setuptools. +* #2681: Setuptools own setup.py no longer declares setup_requires, but instead expects wheel to be installed as declared by pyproject.toml. + +Misc +---- +* #2650: Updated the docs build tooling to support the latest version of + Towncrier and show the previews of not-yet-released setuptools versions + in the changelog -- :user:`webknjaz` + + +v56.2.0 +======= + + +Changes +------- +* #2640: Fixed handling of multiline license strings. - by :user:`cdce8p` +* #2641: Setuptools will now always try to use the latest supported + metadata version for ``PKG-INFO``. - by :user:`cdce8p` + + +v56.1.0 +======= + + +Changes +------- +* #2653: Incorporated assorted changes from pypa/distutils. +* #2657: Adopted docs from distutils. +* #2663: Added Visual Studio Express 2017 support -- by :user:`dofuuz` + +Misc +---- +* #2644: Fixed ``DeprecationWarning`` due to ``threading.Thread.setDaemon`` in tests -- by :user:`tirkarthi` +* #2654: Made the changelog generator compatible + with Towncrier >= 19.9 -- :user:`webknjaz` +* #2664: Relax the deprecation message in the distutils hack. + + +v56.0.0 +======= + + +Deprecations +------------ +* #2620: The ``license_file`` option is now marked as deprecated. + Use ``license_files`` instead. -- by :user:`cdce8p` + +Breaking Changes +---------------- +* #2620: If neither ``license_file`` nor ``license_files`` is specified, the ``sdist`` + option will now auto-include files that match the following patterns: + ``LICEN[CS]E*``, ``COPYING*``, ``NOTICE*``, ``AUTHORS*``. + This matches the behavior of ``bdist_wheel``. -- by :user:`cdce8p` + +Changes +------- +* #2620: The ``license_file`` and ``license_files`` options now support glob patterns. -- by :user:`cdce8p` +* #2632: Implemented ``VendorImporter.find_spec()`` method to get rid + of ``ImportWarning`` that Python 3.10 emits when only the old-style + importer hooks are present -- by :user:`webknjaz` + +Documentation changes +--------------------- +* #2620: Added documentation for the ``license_files`` option. -- by :user:`cdce8p` + + +v55.0.0 +======= + + +Breaking Changes +---------------- +* #2566: Remove the deprecated ``bdist_wininst`` command. Binary packages should be built as wheels instead. -- by :user:`hroncok` + + +v54.2.0 +======= + + +Changes +------- +* #2608: Added informative error message to PEP 517 build failures owing to + an empty ``setup.py`` -- by :user:`layday` + + +v54.1.3 +======= + +No significant changes. + + +v54.1.2 +======= + + +Misc +---- +* #2595: Reduced scope of dash deprecation warning to Setuptools/distutils only -- by :user:`melissa-kun-li` + + +v54.1.1 +======= + + +Documentation changes +--------------------- +* #2584: Added ``sphinx-inline-tabs`` extension to allow for comparison of ``setup.py`` and its equivalent ``setup.cfg`` -- by :user:`amy-lei` + +Misc +---- +* #2592: Made option keys in the ``[metadata]`` section of ``setup.cfg`` case-sensitive. Users having + uppercase option spellings will get a warning suggesting to make them to lowercase + -- by :user:`melissa-kun-li` + + +v54.1.0 +======= + + +Changes +------- +* #1608: Removed the conversion of dashes to underscores in the :code:`extras_require` and :code:`data_files` of :code:`setup.cfg` to support the usage of dashes. Method will warn users when they use a dash-separated key which in the future will only allow an underscore. Note: the method performs the dash to underscore conversion to preserve compatibility, but future versions will no longer support it -- by :user:`melissa-kun-li` + + +v54.0.0 +======= + + +Breaking Changes +---------------- +* #2582: Simplified build-from-source story by providing bootstrapping metadata in a separate egg-info directory. Build requirements no longer include setuptools itself. Sdist once again includes the pyproject.toml. Project can no longer be installed from source on pip 19.x, but install from source is still supported on pip < 19 and pip >= 20 and install from wheel is still supported with pip >= 9. + +Changes +------- +* #1932: Handled :code:`AttributeError` by raising :code:`DistutilsSetupError` in :code:`dist.check_specifier()` when specifier is not a string -- by :user:`melissa-kun-li` +* #2570: Correctly parse cmdclass in setup.cfg. + +Documentation changes +--------------------- +* #2553: Added userguide example for markers in extras_require -- by :user:`pwoolvett` + + +v53.1.0 +======= + + +Changes +------- +* #1937: Preserved case-sensitivity of keys in setup.cfg so that entry point names are case-sensitive. Changed sensitivity of configparser. NOTE: Any projects relying on case-insensitivity will need to adapt to accept the original case as published. -- by :user:`melissa-kun-li` +* #2573: Fixed error in uploading a Sphinx doc with the :code:`upload_docs` command. An html builder will be used. + Note: :code:`upload_docs` is deprecated for PyPi, but is supported for other sites -- by :user:`melissa-kun-li` + + +v53.0.0 +======= + + +Breaking Changes +---------------- +* #1527: Removed bootstrap script. Now Setuptools requires pip or another pep517-compliant builder such as 'build' to build. Now Setuptools can be installed from Github main branch. + + +v52.0.0 +======= + + +Breaking Changes +---------------- +* #2537: Remove fallback support for fetch_build_eggs using easy_install. Now pip is required for setup_requires to succeed. +* #2544: Removed 'easy_install' top-level model (runpy entry point) and 'easy_install' console script. +* #2545: Removed support for eggsecutables. + +Changes +------- +* #2459: Tests now run in parallel via pytest-xdist, completing in about half the time. Special thanks to :user:`webknjaz` for hard work implementing test isolation. To run without parallelization, disable the plugin with ``tox -- -p no:xdist``. + + +v51.3.3 +======= + + +Misc +---- +* #2539: Fix AttributeError in Description validation. + + +v51.3.2 +======= + + +Misc +---- +* #1390: Validation of Description field now is more lenient, emitting a warning and mangling the value to be valid (replacing newlines with spaces). + + +v51.3.1 +======= + + +Misc +---- +* #2536: Reverted tag deduplication handling. + + +v51.3.0 +======= + + +Changes +------- +* #1390: Newlines in metadata description/Summary now trigger a ValueError. +* #2481: Define ``create_module()`` and ``exec_module()`` methods in ``VendorImporter`` + to get rid of ``ImportWarning`` -- by :user:`hroncok` +* #2489: ``pkg_resources`` behavior for zipimport now matches the regular behavior, and finds + ``.egg-info`` (previously would only find ``.dist-info``) -- by :user:`thatch` +* #2529: Fixed an issue where version tags may be added multiple times + + +v51.2.0 +======= + + +Changes +------- +* #2493: Use importlib.import_module() rather than the deprecated loader.load_module() + in pkg_resources namespace declaration -- by :user:`encukou` + +Documentation changes +--------------------- +* #2525: Fix typo in the document page about entry point. -- by :user:`jtr109` + +Misc +---- +* #2534: Avoid hitting network during test_easy_install. + + +v51.1.2 +======= + + +Misc +---- +* #2505: Disable inclusion of package data as it causes 'tests' to be included as data. + + +v51.1.1 +======= + + +Misc +---- +* #2534: Avoid hitting network during test_virtualenv.test_test_command. + + +v51.1.0 +======= + + +Changes +------- +* #2486: Project adopts jaraco/skeleton for shared package maintenance. + +Misc +---- +* #2477: Restore inclusion of rst files in sdist. +* #2484: Setuptools has replaced the master branch with the main branch. +* #2485: Fixed failing test when pip 20.3+ is present. + -- by :user:`yan12125` +* #2487: Fix tests with pytest 6.2 + -- by :user:`yan12125` + + +v51.0.0 +======= + + +Breaking Changes +---------------- +* #2435: Require Python 3.6 or later. + +Documentation changes +--------------------- +* #2430: Fixed inconsistent RST title nesting levels caused by #2399 + -- by :user:`webknjaz` +* #2430: Fixed a typo in Sphinx docs that made docs dev section disappear + as a result of PR #2426 -- by :user:`webknjaz` + +Misc +---- +* #2471: Removed the tests that guarantee that the vendored dependencies can be built by distutils. + + +v50.3.2 +======= + + + +Documentation changes +--------------------- +* #2394: Extended towncrier news template to include change note categories. + This allows to see what types of changes a given version introduces + -- by :user:`webknjaz` +* #2427: Started enforcing strict syntax and reference validation + in the Sphinx docs -- by :user:`webknjaz` +* #2428: Removed redundant Sphinx ``Makefile`` support -- by :user:`webknjaz` + +Misc +---- +* #2401: Enabled test results reporting in AppVeyor CI + -- by :user:`webknjaz` +* #2420: Replace Python 3.9.0 beta with 3.9.0 final on GitHub Actions. +* #2421: Python 3.9 Trove classifier got added to the dist metadata + -- by :user:`webknjaz` + + +v50.3.1 +======= + + + +Documentation changes +--------------------- +* #2093: Finalized doc revamp. +* #2097: doc: simplify index and group deprecated files +* #2102: doc overhaul step 2: break main doc into multiple sections +* #2111: doc overhaul step 3: update userguide +* #2395: Added a ``:user:`` role to Sphinx config -- by :user:`webknjaz` +* #2395: Added an illustrative explanation about the change notes to fragments dir -- by :user:`webknjaz` + +Misc +---- +* #2379: Travis CI test suite now tests against PPC64. +* #2413: Suppress EOF errors (and other exceptions) when importing lib2to3. + + +v50.3.0 +======= + + + +Changes +------- +* #2368: In distutils, restore support for monkeypatched CCompiler.spawn per pypa/distutils#15. + + +v50.2.0 +======= + + + +Changes +------- +* #2355: When pip is imported as part of a build, leave distutils patched. +* #2380: There are some setuptools specific changes in the + ``setuptools.command.bdist_rpm`` module that are no longer needed, because + they are part of the ``bdist_rpm`` module in distutils in Python + 3.5.0. Therefore, code was removed from ``setuptools.command.bdist_rpm``. + + +v50.1.0 +======= + + + +Changes +------- +* #2350: Setuptools reverts using the included distutils by default. Platform maintainers and system integrators and others are *strongly* encouraged to set ``SETUPTOOLS_USE_DISTUTILS=local`` to help identify and work through the reported issues with distutils adoption, mainly to file issues and pull requests with pypa/distutils such that distutils performs as needed across every supported environment. + + +v50.0.3 +======= + + + +Misc +---- +* #2363: Restore link_libpython support on Python 3.7 and earlier (see pypa/distutils#9). + + +v50.0.2 +======= + + + +Misc +---- +* #2352: In distutils hack, use absolute import rather than relative to avoid bpo-30876. + + +v50.0.1 +======= + + + +Misc +---- +* #2357: Restored Python 3.5 support in distutils.util for missing ``subprocess._optim_args_from_interpreter_flags``. +* #2358: Restored AIX support on Python 3.8 and earlier. +* #2361: Add Python 3.10 support to _distutils_hack. Get the 'Loader' abstract class + from importlib.abc rather than importlib.util.abc (alias removed in Python + 3.10). + + +v50.0.0 +======= + + + +Breaking Changes +---------------- +* #2232: Once again, Setuptools overrides the stdlib distutils on import. For environments or invocations where this behavior is undesirable, users are provided with a temporary escape hatch. If the environment variable ``SETUPTOOLS_USE_DISTUTILS`` is set to ``stdlib``, Setuptools will fall back to the legacy behavior. Use of this escape hatch is discouraged, but it is provided to ease the transition while proper fixes for edge cases can be addressed. + +Changes +------- +* #2334: In MSVC module, refine text in error message. + + +v49.6.0 +======= + + + +Changes +------- +* #2129: In pkg_resources, no longer detect any pathname ending in .egg as a Python egg. Now the path must be an unpacked egg or a zip file. + + +v49.5.0 +======= + + + +Changes +------- +* #2306: When running as a PEP 517 backend, setuptools does not try to install + ``setup_requires`` itself. They are reported as build requirements for the + frontend to install. + + +v49.4.0 +======= + + + +Changes +------- +* #2310: Updated vendored packaging version to 20.4. + + +v49.3.2 +======= + + + +Documentation changes +--------------------- +* #2300: Improve the ``safe_version`` function documentation + +Misc +---- +* #2297: Once again, in stubs prefer exec_module to the deprecated load_module. + + +v49.3.1 +======= + + + +Changes +------- +* #2316: Removed warning when ``distutils`` is imported before ``setuptools`` when ``distutils`` replacement is not enabled. + + +v49.3.0 +======= + + + +Changes +------- +* #2259: Setuptools now provides a .pth file (except for editable installs of setuptools) to the target environment to ensure that when enabled, the setuptools-provided distutils is preferred before setuptools has been imported (and even if setuptools is never imported). Honors the SETUPTOOLS_USE_DISTUTILS environment variable. + + +v49.2.1 +======= + + + +Misc +---- +* #2257: Fixed two flaws in distutils._msvccompiler.MSVCCompiler.spawn. + + +v49.2.0 +======= + + + +Changes +------- +* #2230: Now warn the user when setuptools is imported after distutils modules have been loaded (exempting PyPy for 3.6), directing the users of packages to import setuptools first. + + +v49.1.3 +======= + + + +Misc +---- +* #2212: (Distutils) Allow spawn to accept environment. Avoid monkey-patching global state. +* #2249: Fix extension loading technique in stubs. + + +v49.1.2 +======= + + + +Changes +------- +* #2232: In preparation for re-enabling a local copy of distutils, Setuptools now honors an environment variable, SETUPTOOLS_USE_DISTUTILS. If set to 'stdlib' (current default), distutils will be used from the standard library. If set to 'local' (default in a imminent backward-incompatible release), the local copy of distutils will be used. + + +v49.1.1 +======= + + + +Misc +---- +* #2094: Removed pkg_resources.py2_warn module, which is no longer reachable. + + +v49.0.1 +======= + + + +Misc +---- +* #2228: Applied fix for pypa/distutils#3, restoring expectation that spawn will raise a DistutilsExecError when attempting to execute a missing file. + + +v49.1.0 +======= + + + +Changes +------- +* #2228: Disabled distutils adoption for now while emergent issues are addressed. + + +v49.0.0 +======= + + + +Breaking Changes +---------------- +* #2165: Setuptools no longer installs a site.py file during easy_install or develop installs. As a result, .eggs on PYTHONPATH will no longer take precedence over other packages on sys.path. If this issue affects your production environment, please reach out to the maintainers at #2165. + +Changes +------- +* #2137: Removed (private) pkg_resources.RequirementParseError, now replaced by packaging.requirements.InvalidRequirement. Kept the name for compatibility, but users should catch InvalidRequirement instead. +* #2180: Update vendored packaging in pkg_resources to 19.2. + +Misc +---- +* #2199: Fix exception causes all over the codebase by using ``raise new_exception from old_exception`` + + +v48.0.0 +======= + + + +Breaking Changes +---------------- +* #2143: Setuptools adopts distutils from the Python 3.9 standard library and no longer depends on distutils in the standard library. When importing ``setuptools`` or ``setuptools.distutils_patch``, Setuptools will expose its bundled version as a top-level ``distutils`` package (and unload any previously-imported top-level distutils package), retaining the expectation that ``distutils``' objects are actually Setuptools objects. + To avoid getting any legacy behavior from the standard library, projects are advised to always "import setuptools" prior to importing anything from distutils. This behavior happens by default when using ``pip install`` or ``pep517.build``. Workflows that rely on ``setup.py (anything)`` will need to first ensure setuptools is imported. One way to achieve this behavior without modifying code is to invoke Python thus: ``python -c "import setuptools; exec(open('setup.py').read())" (anything)``. + + +v47.3.2 +======= + + + +Misc +---- +* #2071: Replaced references to the deprecated imp package with references to importlib + + +v47.3.1 +======= + + + +Misc +---- +* #1973: Removed ``pkg_resources.py31compat.makedirs`` in favor of the stdlib. Use ``os.makedirs()`` instead. +* #2198: Restore ``__requires__`` directive in easy-install wrapper scripts. + + +v47.3.0 +======= + + + +Changes +------- +* #2197: Console script wrapper for editable installs now has a unified template and honors importlib_metadata if present for faster script execution on older Pythons. + +Misc +---- +* #2195: Fix broken entry points generated by easy-install (pip editable installs). + + +v47.2.0 +======= + + + +Changes +------- +* #2194: Editable-installed entry points now load significantly faster on Python versions 3.8+. +* #1471: Incidentally fixed by #2194 on Python 3.8 or when importlib_metadata is present. + + +v47.1.1 +======= + + + +Documentation changes +--------------------- +* #2156: Update mailing list pointer in developer docs + +Incorporate changes from v44.1.1: +--------------------------------- + +* #2158: Avoid loading working set during ``Distribution.finalize_options`` prior to invoking ``_install_setup_requires``, broken since v42.0.0. + + +v44.1.1 +======= + + + +Misc +---- +* #2158: Avoid loading working set during ``Distribution.finalize_options`` prior to invoking ``_install_setup_requires``, broken since v42.0.0. + + +v47.1.0 +======= + + + +Changes +------- +* #2070: In wheel-to-egg conversion, use simple pkg_resources-style namespace declaration for packages that declare namespace_packages. + + +v47.0.0 +======= + + + +Breaking Changes +---------------- +* #2094: Setuptools now actively crashes under Python 2. Python 3.5 or later is required. Users of Python 2 should use ``setuptools<45``. + +Changes +------- +* #1700: Document all supported keywords by migrating the ones from distutils. + + +v46.4.0 +======= + + + +Changes +------- +* #1753: ``attr:`` now extracts variables through rudimentary examination of the AST, + thereby supporting modules with third-party imports. If examining the AST + fails to find the variable, ``attr:`` falls back to the old behavior of + importing the module. Works on Python 3 only. + + +v46.3.1 +======= + +No significant changes. + + +v46.3.0 +======= + + + +Changes +------- +* #2089: Package index functionality no longer attempts to remove an md5 fragment from the index URL. This functionality, added for distribute #163 is no longer relevant. + +Misc +---- +* #2041: Preserve file modes during pkg files copying, but clear read only flag for target afterwards. +* #2105: Filter ``2to3`` deprecation warnings from ``TestDevelop.test_2to3_user_mode``. + + +v46.2.0 +======= + + + +Changes +------- +* #2040: Deprecated the ``bdist_wininst`` command. Binary packages should be built as wheels instead. +* #2062: Change 'Mac OS X' to 'macOS' in code. +* #2075: Stop recognizing files ending with ``.dist-info`` as distribution metadata. +* #2086: Deprecate 'use_2to3' functionality. Packagers are encouraged to use single-source solutions or build tool chains to manage conversions outside of setuptools. + +Documentation changes +--------------------- +* #1698: Added documentation for ``build_meta`` (a bare minimum, not completed). + +Misc +---- +* #2082: Filter ``lib2to3`` ``PendingDeprecationWarning`` and ``DeprecationWarning`` in tests, + because ``lib2to3`` is `deprecated in Python 3.9 `_. + + +v46.1.3 +======= + +No significant changes. + + +v46.1.2 +======= + + + +Misc +---- +* #1458: Added template for reporting Python 2 incompatibilities. + + +v46.1.1 +======= + +No significant changes. + + +v46.1.0 +======= + + + +Changes +------- +* #308: Allow version number normalization to be bypassed by wrapping in a 'setuptools.sic()' call. +* #1424: Prevent keeping files mode for package_data build. It may break a build if user's package data has read only flag. +* #1431: In ``easy_install.check_site_dir``, ensure the installation directory exists. +* #1563: In ``pkg_resources`` prefer ``find_spec`` (PEP 451) to ``find_module``. + +Incorporate changes from v44.1.0: +--------------------------------- + +* #1704: Set sys.argv[0] in setup script run by build_meta.__legacy__ +* #1959: Fix for Python 4: replace unsafe six.PY3 with six.PY2 +* #1994: Fixed a bug in the "setuptools.finalize_distribution_options" hook that lead to ignoring the order attribute of entry points managed by this hook. + + +v44.1.0 +======= + + + +Changes +------- +* #1704: Set sys.argv[0] in setup script run by build_meta.__legacy__ +* #1959: Fix for Python 4: replace unsafe six.PY3 with six.PY2 +* #1994: Fixed a bug in the "setuptools.finalize_distribution_options" hook that lead to ignoring the order attribute of entry points managed by this hook. + + +v46.0.0 +======= + + + +Breaking Changes +---------------- +* #65: Once again as in 3.0, removed the Features feature. + +Changes +------- +* #1890: Fix vendored dependencies so importing ``setuptools.extern.some_module`` gives the same object as ``setuptools._vendor.some_module``. This makes Metadata picklable again. +* #1899: Test suite now fails on warnings. + +Documentation changes +--------------------- +* #2011: Fix broken link to distutils docs on package_data + +Misc +---- +* #1991: Include pkg_resources test data in sdist, so tests can be executed from it. + + +v45.3.0 +======= + + + +Changes +------- +* #1557: Deprecated eggsecutable scripts and updated docs. +* #1904: Update msvc.py to use CPython 3.8.0 mechanism to find msvc 14+ + + +v45.2.0 +======= + + + +Changes +------- +* #1905: Fixed defect in _imp, introduced in 41.6.0 when the 'tests' directory is not present. +* #1941: Improve editable installs with PEP 518 build isolation: + + * The ``--user`` option is now always available. A warning is issued if the user site directory is not available. + * The error shown when the install directory is not in ``PYTHONPATH`` has been turned into a warning. +* #1981: Setuptools now declares its ``tests`` and ``docs`` dependencies in metadata (extras). +* #1985: Add support for installing scripts in environments where bdist_wininst is missing (i.e. Python 3.9). + +Misc +---- +* #1968: Add flake8-2020 to check for misuse of sys.version or sys.version_info. + + +v45.1.0 +======= + + + +Changes +------- +* #1458: Add minimum sunset date and preamble to Python 2 warning. +* #1704: Set sys.argv[0] in setup script run by build_meta.__legacy__ +* #1974: Add Python 3 Only Trove Classifier and remove universal wheel declaration for more complete transition from Python 2. + + +v45.0.0 +======= + + + +Breaking Changes +---------------- +* #1458: Drop support for Python 2. Setuptools now requires Python 3.5 or later. Install setuptools using pip >=9 or pin to Setuptools <45 to maintain 2.7 support. + +Changes +------- +* #1959: Fix for Python 4: replace unsafe six.PY3 with six.PY2 + + +v44.0.0 +======= + + + +Breaking Changes +---------------- +* #1908: Drop support for Python 3.4. + + +v43.0.0 +======= + + + +Breaking Changes +---------------- +* #1634: Include ``pyproject.toml`` in source distribution by default. Projects relying on the previous behavior where ``pyproject.toml`` was excluded by default should stop relying on that behavior or add ``exclude pyproject.toml`` to their MANIFEST.in file. + +Changes +------- +* #1927: Setuptools once again declares 'setuptools' in the ``build-system.requires`` and adds PEP 517 build support by declaring itself as the ``build-backend``. It additionally specifies ``build-system.backend-path`` to rely on itself for those builders that support it. + + +v42.0.2 +======= + +Changes +------- + +* #1921: Fix support for easy_install's ``find-links`` option in ``setup.cfg``. +* #1922: Build dependencies (setup_requires and tests_require) now install transitive dependencies indicated by extras. + + +v42.0.1 +======= + + + +Changes +------- +* #1918: Fix regression in handling wheels compatibility tags. + + +v42.0.0 +======= + + + +Breaking Changes +---------------- +* #1830, #1909: Mark the easy_install script and setuptools command as deprecated, and use `pip `_ when available to fetch/build wheels for missing ``setup_requires``/``tests_require`` requirements, with the following differences in behavior: + * support for ``python_requires`` + * better support for wheels (proper handling of priority with respect to PEP 425 tags) + * PEP 517/518 support + * eggs are not supported + * no support for the ``allow_hosts`` easy_install option (``index_url``/``find_links`` are still honored) + * pip environment variables are honored (and take precedence over easy_install options) +* #1898: Removed the "upload" and "register" commands in favor of :pypi:`twine`. + +Changes +------- +* #1767: Add support for the ``license_files`` option in ``setup.cfg`` to automatically + include multiple license files in a source distribution. +* #1829: Update handling of wheels compatibility tags: + * add support for manylinux2010 + * fix use of removed 'm' ABI flag in Python 3.8 on Windows +* #1861: Fix empty namespace package installation from wheel. +* #1877: Setuptools now exposes a new entry point hook "setuptools.finalize_distribution_options", enabling plugins like :pypi:`setuptools_scm` to configure options on the distribution at finalization time. + + +v41.6.0 +======= + + + +Changes +------- +* #479: Replace usage of deprecated ``imp`` module with local re-implementation in ``setuptools._imp``. + + +v41.5.1 +======= + + + +Changes +------- +* #1891: Fix code for detecting Visual Studio's version on Windows under Python 2. + + +v41.5.0 +======= + + + +Changes +------- +* #1811: Improve Visual C++ 14.X support, mainly for Visual Studio 2017 and 2019. +* #1814: Fix ``pkg_resources.Requirement`` hash/equality implementation: take PEP 508 direct URL into account. +* #1824: Fix tests when running under ``python3.10``. +* #1878: Formally deprecated the ``test`` command, with the recommendation that users migrate to ``tox``. + +Documentation changes +--------------------- +* #1860: Update documentation to mention the egg format is not supported by pip and dependency links support was dropped starting with pip 19.0. +* #1862: Drop ez_setup documentation: deprecated for some time (last updated in 2016), and still relying on easy_install (deprecated too). +* #1868: Drop most documentation references to (deprecated) EasyInstall. +* #1884: Added a trove classifier to document support for Python 3.8. + +Misc +---- +* #1886: Added Python 3.8 release to the Travis test matrix. + + +v41.4.0 +======= + + + +Changes +------- +* #1847: In declarative config, now traps errors when invalid ``python_requires`` values are supplied. + + +v41.3.0 +======= + + + +Changes +------- +* #1690: When storing extras, rely on OrderedSet to retain order of extras as indicated by the packager, which will also be deterministic on Python 2.7 (with PYTHONHASHSEED unset) and Python 3.6+. + +Misc +---- +* #1858: Fixed failing integration test triggered by 'long_description_content_type' in packaging. + + +v41.2.0 +======= + + + +Changes +------- +* #479: Remove some usage of the deprecated ``imp`` module. + +Misc +---- +* #1565: Changed html_sidebars from string to list of string as per + https://www.sphinx-doc.org/en/master/changes.html#id58 + + +v41.1.0 +======= + + + +Misc +---- +* #1697: Moved most of the constants from setup.py to setup.cfg +* #1749: Fixed issue with the PEP 517 backend where building a source distribution would fail if any tarball existed in the destination directory. +* #1750: Fixed an issue with PEP 517 backend where wheel builds would fail if the destination directory did not already exist. +* #1756: Force metadata-version >= 1.2. when project urls are present. +* #1769: Improve ``package_data`` check: ensure the dictionary values are lists/tuples of strings. +* #1788: Changed compatibility fallback logic for ``html.unescape`` to avoid accessing ``HTMLParser.unescape`` when not necessary. ``HTMLParser.unescape`` is deprecated and will be removed in Python 3.9. +* #1790: Added the file path to the error message when a ``UnicodeDecodeError`` occurs while reading a metadata file. + +Documentation changes +--------------------- +* #1776: Use license classifiers rather than the license field. + + +v41.0.1 +======= + + + +Changes +------- +* #1671: Fixed issue with the PEP 517 backend that prevented building a wheel when the ``dist/`` directory contained existing ``.whl`` files. +* #1709: In test.paths_on_python_path, avoid adding unnecessary duplicates to the PYTHONPATH. +* #1741: In package_index, now honor "current directory" during a checkout of git and hg repositories under Windows + + +v41.0.0 +======= + + + +Breaking Changes +---------------- +* #1735: When parsing setup.cfg files, setuptools now requires the files to be encoded as UTF-8. Any other encoding will lead to a UnicodeDecodeError. This change removes support for specifying an encoding using a 'coding: ' directive in the header of the file, a feature that was introduces in 40.7. Given the recent release of the aforementioned feature, it is assumed that few if any projects are utilizing the feature to specify an encoding other than UTF-8. + + +v40.9.0 +======= + + + +Changes +------- +* #1675: Added support for ``setup.cfg``-only projects when using the ``setuptools.build_meta`` backend. Projects that have enabled PEP 517 no longer need to have a ``setup.py`` and can use the purely declarative ``setup.cfg`` configuration file instead. +* #1720: Added support for ``pkg_resources.parse_requirements``-style requirements in ``setup_requires`` when ``setup.py`` is invoked from the ``setuptools.build_meta`` build backend. +* #1664: Added the path to the ``PKG-INFO`` or ``METADATA`` file in the exception + text when the ``Version:`` header can't be found. + +Documentation changes +--------------------- +* #1705: Removed some placeholder documentation sections referring to deprecated features. + + +v40.8.0 +======= + + + +Changes +------- +* #1652: Added the ``build_meta:__legacy__`` backend, a "compatibility mode" PEP 517 backend that can be used as the default when ``build-backend`` is left unspecified in ``pyproject.toml``. +* #1635: Resource paths are passed to ``pkg_resources.resource_string`` and similar no longer accept paths that traverse parents, that begin with a leading ``/``. Violations of this expectation raise DeprecationWarnings and will become errors. Additionally, any paths that are absolute on Windows are strictly disallowed and will raise ValueErrors. +* #1536: ``setuptools`` will now automatically include licenses if ``setup.cfg`` contains a ``license_file`` attribute, unless this file is manually excluded inside ``MANIFEST.in``. + + +v40.7.3 +======= + + + +Changes +------- +* #1670: In package_index, revert to using a copy of splituser from Python 3.8. Attempts to use ``urllib.parse.urlparse`` led to problems as reported in #1663 and #1668. This change serves as an alternative to #1499 and fixes #1668. + + +v40.7.2 +======= + + + +Changes +------- +* #1666: Restore port in URL handling in package_index. + + +v40.7.1 +======= + + + +Changes +------- +* #1660: On Python 2, when reading config files, downcast options from text to bytes to satisfy distutils expectations. + + +v40.7.0 +======= + + + +Breaking Changes +---------------- +* #1551: File inputs for the ``license`` field in ``setup.cfg`` files now explicitly raise an error. + +Changes +------- +* #1180: Add support for non-ASCII in setup.cfg (#1062). Add support for native strings on some parameters (#1136). +* #1499: ``setuptools.package_index`` no longer relies on the deprecated ``urllib.parse.splituser`` per Python #27485. +* #1544: Added tests for PackageIndex.download (for git URLs). +* #1625: In PEP 517 build_meta builder, ensure that sdists are built as gztar per the spec. + + +v40.6.3 +======= + + + +Changes +------- +* #1594: PEP 517 backend no longer declares setuptools as a dependency as it can be assumed. + + +v40.6.2 +======= + + + +Changes +------- +* #1592: Fix invalid dependency on external six module (instead of vendored version). + + +v40.6.1 +======= + + + +Changes +------- +* #1590: Fixed regression where packages without ``author`` or ``author_email`` fields generated malformed package metadata. + + +v40.6.0 +======= + + + +Deprecations +------------ +* #1541: Officially deprecated the ``requires`` parameter in ``setup()``. + +Changes +------- +* #1519: In ``pkg_resources.normalize_path``, additional path normalization is now performed to ensure path values to a directory is always the same, preventing false positives when checking scripts have a consistent prefix to set up on Windows. +* #1545: Changed the warning class of all deprecation warnings; deprecation warning classes are no longer derived from ``DeprecationWarning`` and are thus visible by default. +* #1554: ``build_meta.build_sdist`` now includes ``setup.py`` in source distributions by default. +* #1576: Started monkey-patching ``get_metadata_version`` and ``read_pkg_file`` onto ``distutils.DistributionMetadata`` to retain the correct version on the ``PKG-INFO`` file in the (deprecated) ``upload`` command. + +Documentation changes +--------------------- +* #1395: Changed Pyrex references to Cython in the documentation. +* #1456: Documented that the ``rpmbuild`` packages is required for the ``bdist_rpm`` command. +* #1537: Documented how to use ``setup.cfg`` for ``src/ layouts`` +* #1539: Added minimum version column in ``setup.cfg`` metadata table. +* #1552: Fixed a minor typo in the python 2/3 compatibility documentation. +* #1553: Updated installation instructions to point to ``pip install`` instead of ``ez_setup.py``. +* #1560: Updated ``setuptools`` distribution documentation to remove some outdated information. +* #1564: Documented ``setup.cfg`` minimum version for version and project_urls. + +Misc +---- +* #1533: Restricted the ``recursive-include setuptools/_vendor`` to contain only .py and .txt files. +* #1572: Added the ``concurrent.futures`` backport ``futures`` to the Python 2.7 test suite requirements. + + +v40.5.0 +======= + + + +Changes +------- +* #1335: In ``pkg_resources.normalize_path``, fix issue on Cygwin when cwd contains symlinks. +* #1502: Deprecated support for downloads from Subversion in package_index/easy_install. +* #1517: Dropped use of six.u in favor of ``u""`` literals. +* #1520: Added support for ``data_files`` in ``setup.cfg``. + +Documentation changes +--------------------- +* #1525: Fixed rendering of the deprecation warning in easy_install doc. + + +v40.4.3 +======= + + + +Changes +------- +* #1480: Bump vendored pyparsing in pkg_resources to 2.2.1. + + +v40.4.2 +======= + + + +Misc +---- +* #1497: Updated gitignore in repo. + + +v40.4.1 +======= + + + +Changes +------- +* #1480: Bump vendored pyparsing to 2.2.1. + + +v40.4.0 +======= + + + +Changes +------- +* #1481: Join the sdist ``--dist-dir`` and the ``build_meta`` sdist directory argument to point to the same target (meaning the build frontend no longer needs to clean manually the dist dir to avoid multiple sdist presence, and setuptools no longer needs to handle conflicts between the two). + + +v40.3.0 +======= + + + +Changes +------- +* #1402: Fixed a bug with namespace packages under Python 3.6 when one package in + current directory hides another which is installed. +* #1427: Set timestamp of ``.egg-info`` directory whenever ``egg_info`` command is run. +* #1474: ``build_meta.get_requires_for_build_sdist`` now does not include the ``wheel`` package anymore. +* #1486: Suppress warnings in pkg_resources.handle_ns. + +Misc +---- +* #1479: Remove internal use of six.binary_type. + + +v40.2.0 +======= + + + +Changes +------- +* #1466: Fix handling of Unicode arguments in PEP 517 backend + + +v40.1.1 +======== + + + +Changes +------- +* #1465: Fix regression with ``egg_info`` command when tagging is used. + + +v40.1.0 +======= + + + +Changes +------- +* #1410: Deprecated ``upload`` and ``register`` commands. +* #1312: Introduced find_namespace_packages() to find PEP 420 namespace packages. +* #1420: Added find_namespace: directive to config parser. +* #1418: Solved race in when creating egg cache directories. +* #1450: Upgraded vendored PyParsing from 2.1.10 to 2.2.0. +* #1451: Upgraded vendored appdirs from 1.4.0 to 1.4.3. +* #1388: Fixed "Microsoft Visual C++ Build Tools" link in exception when Visual C++ not found. +* #1389: Added support for scripts which have unicode content. +* #1416: Moved several Python version checks over to using ``six.PY2`` and ``six.PY3``. + +Misc +---- +* #1441: Removed spurious executable permissions from files that don't need them. + + +v40.0.0 +======= + + + +Breaking Changes +---------------- +* #1342: Drop support for Python 3.3. + +Changes +------- +* #1366: In package_index, fixed handling of encoded entities in URLs. +* #1383: In pkg_resources VendorImporter, avoid removing packages imported from the root. + +Documentation changes +--------------------- +* #1379: Minor doc fixes after actually using the new release process. +* #1385: Removed section on non-package data files. +* #1403: Fix developer's guide. + +Misc +---- +* #1404: Fix PEP 518 configuration: set build requirements in ``pyproject.toml`` to ``["wheel"]``. + + +v39.2.0 +======= + + + +Changes +------- +* #1359: Support using "file:" to load a PEP 440-compliant package version from + a text file. +* #1360: Fixed issue with a mismatch between the name of the package and the + name of the .dist-info file in wheel files +* #1364: Add ``__dir__()`` implementation to ``pkg_resources.Distribution()`` that + includes the attributes in the ``_provider`` instance variable. +* #1365: Take the package_dir option into account when loading the version from + a module attribute. + +Documentation changes +--------------------- +* #1353: Added coverage badge to README. +* #1356: Made small fixes to the developer guide documentation. +* #1357: Fixed warnings in documentation builds and started enforcing that the + docs build without warnings in tox. +* #1376: Updated release process docs. + +Misc +---- +* #1343: The ``setuptools`` specific ``long_description_content_type``, + ``project_urls`` and ``provides_extras`` fields are now set consistently + after any ``distutils`` ``setup_keywords`` calls, allowing them to override + values. +* #1352: Added ``tox`` environment for documentation builds. +* #1354: Added ``towncrier`` for changelog management. +* #1355: Add PR template. +* #1368: Fixed tests which failed without network connectivity. +* #1369: Added unit tests for PEP 425 compatibility tags support. +* #1372: Stop testing Python 3.3 in Travis CI, now that the latest version of + ``wheel`` no longer installs on it. + +v39.1.0 +======= + +* #1340: Update all PyPI URLs to reflect the switch to the + new Warehouse codebase. +* #1337: In ``pkg_resources``, now support loading resources + for modules loaded by the ``SourcelessFileLoader``. +* #1332: Silence spurious wheel related warnings on Windows. + +v39.0.1 +======= + +* #1297: Restore Unicode handling for Maintainer fields in + metadata. + +v39.0.0 +======= + +* #1296: Setuptools now vendors its own direct dependencies, no + longer relying on the dependencies as vendored by pkg_resources. + +* #296: Removed long-deprecated support for iteration on + Version objects as returned by ``pkg_resources.parse_version``. + Removed the ``SetuptoolsVersion`` and + ``SetuptoolsLegacyVersion`` names as well. They should not + have been used, but if they were, replace with + ``Version`` and ``LegacyVersion`` from ``packaging.version``. + +v38.7.0 +======= + +* #1288: Add support for maintainer in PKG-INFO. + +v38.6.1 +======= + +* #1292: Avoid generating ``Provides-Extra`` in metadata when + no extra is present (but environment markers are). + +v38.6.0 +======= + +* #1286: Add support for Metadata 2.1 (PEP 566). + +v38.5.2 +======= + +* #1285: Fixed RuntimeError in pkg_resources.parse_requirements + on Python 3.7 (stemming from PEP 479). + +v38.5.1 +======= + +* #1271: Revert to Cython legacy ``build_ext`` behavior for + compatibility. + +v38.5.0 +======= + +* #1229: Expand imports in ``build_ext`` to refine detection of + Cython availability. + +* #1270: When Cython is available, ``build_ext`` now uses the + new_build_ext. + +v38.4.1 +======= + +* #1257: In bdist_egg.scan_module, fix ValueError on Python 3.7. + +v38.4.0 +======= + +* #1231: Removed warning when PYTHONDONTWRITEBYTECODE is enabled. + +v38.3.0 +======= + +* #1210: Add support for PEP 345 Project-URL metadata. +* #1207: Add support for ``long_description_type`` to setup.cfg + declarative config as intended and documented. + +v38.2.5 +======= + +* #1232: Fix trailing slash handling in ``pkg_resources.ZipProvider``. + +v38.2.4 +======= + +* #1220: Fix ``data_files`` handling when installing from wheel. + +v38.2.3 +======= + +* fix Travis' Python 3.3 job. + +v38.2.2 +======= + +* #1214: fix handling of namespace packages when installing + from a wheel. + +v38.2.1 +======= + +* #1212: fix encoding handling of metadata when installing + from a wheel. + +v38.2.0 +======= + +* #1200: easy_install now support installing from wheels: + they will be installed as standalone unzipped eggs. + +v38.1.0 +======= + +* #1208: Improve error message when failing to locate scripts + in egg-info metadata. + +v38.0.0 +======= + +* #458: In order to support deterministic builds, Setuptools no + longer allows packages to declare ``install_requires`` as + unordered sequences (sets or dicts). + +v37.0.0 +======= + +* #878: Drop support for Python 2.6. Python 2.6 users should + rely on 'setuptools < 37dev'. + +v36.8.0 +======= + +* #1190: In SSL support for package index operations, use SNI + where available. + +v36.7.3 +======= + +* #1175: Bug fixes to ``build_meta`` module. + +v36.7.2 +======= + +* #701: Fixed duplicate test discovery on Python 3. + +v36.7.1 +======= + +* #1193: Avoid test failures in bdist_egg when + PYTHONDONTWRITEBYTECODE is set. + +v36.7.0 +======= + +* #1054: Support ``setup_requires`` in ``setup.cfg`` files. + +v36.6.1 +======= + +* #1132: Removed redundant and costly serialization/parsing step + in ``EntryPoint.__init__``. + +* #844: ``bdist_egg --exclude-source-files`` now tested and works + on Python 3. + +v36.6.0 +======= + +* #1143: Added ``setuptools.build_meta`` module, an implementation + of PEP-517 for Setuptools-defined packages. + +* #1143: Added ``dist_info`` command for producing dist_info + metadata. + +v36.5.0 +======= + +* #170: When working with Mercurial checkouts, use Windows-friendly + syntax for suppressing output. + +* Inspired by #1134, performed substantial refactoring of + ``pkg_resources.find_on_path`` to facilitate an optimization + for paths with many non-version entries. + +v36.4.0 +======= + +* #1075: Add new ``Description-Content-Type`` metadata field. `See here for + documentation on how to use this field. + `_ + +* #1068: Sort files and directories when building eggs for + deterministic order. + +* #196: Remove caching of easy_install command in fetch_build_egg. + Fixes issue where ``pytest-runner-N.N`` would satisfy the installation + of ``pytest``. + +* #1129: Fix working set dependencies handling when replacing conflicting + distributions (e.g. when using ``setup_requires`` with a conflicting + transitive dependency, fix #1124). + +* #1133: Improved handling of README files extensions and added + Markdown to the list of searched READMES. + +* #1135: Improve performance of pkg_resources import by not invoking + ``access`` or ``stat`` and using ``os.listdir`` instead. + +v36.3.0 +======= + +* #1131: Make possible using several files within ``file:`` directive + in metadata.long_description in ``setup.cfg``. + +v36.2.7 +======= + +* fix #1105: Fix handling of requirements with environment + markers when declared in ``setup.cfg`` (same treatment as + for #1081). + +v36.2.6 +======= + +* #462: Don't assume a directory is an egg by the ``.egg`` + extension alone. + +v36.2.5 +======= + +* #1093: Fix test command handler with extras_require. +* #1112, #1091, #1115: Now using Trusty containers in + Travis for CI and CD. + +v36.2.4 +======= + +* #1092: ``pkg_resources`` now uses ``inspect.getmro`` to + resolve classes in method resolution order. + +v36.2.3 +======= + +* #1102: Restore behavior for empty extras. + +v36.2.2 +======= + +* #1099: Revert commit a3ec721, restoring intended purpose of + extras as part of a requirement declaration. + +v36.2.1 +======= + +* fix #1086 +* fix #1087 +* support extras specifiers in install_requires requirements + +v36.2.0 +======= + +* #1081: Environment markers indicated in ``install_requires`` + are now processed and treated as nameless ``extras_require`` + with markers, allowing their metadata in requires.txt to be + correctly generated. + +* #1053: Tagged commits are now released using Travis-CI + build stages, meaning releases depend on passing tests on + all supported Python versions (Linux) and not just the latest + Python version. + +v36.1.1 +======= + +* #1083: Correct ``py31compat.makedirs`` to correctly honor + ``exist_ok`` parameter. +* #1083: Also use makedirs compatibility throughout setuptools. + +v36.1.0 +======= + +* #1083: Avoid race condition on directory creation in + ``pkg_resources.ensure_directory``. + +* Removed deprecation of and restored support for + ``upload_docs`` command for sites other than PyPI. + Only warehouse is dropping support, but services like + `devpi `_ continue to + support docs built by setuptools' plugins. See + `this comment `_ + for more context on the motivation for this change. + +v36.0.1 +======= + +* #1042: Fix import in py27compat module that still + referenced six directly, rather than through the externs + module (vendored packages hook). + +v36.0.0 +======= + +* #980 and others: Once again, Setuptools vendors all + of its dependencies. It seems to be the case that in + the Python ecosystem, all build tools must run without + any dependencies (build, runtime, or otherwise). At + such a point that a mechanism exists that allows + build tools to have dependencies, Setuptools will adopt + it. + +v35.0.2 +======= + +* #1015: Fix test failures on Python 3.7. + +* #1024: Add workaround for Jython #2581 in monkey module. + +v35.0.1 +======= + +* #992: Revert change introduced in v34.4.1, now + considered invalid. + +* #1016: Revert change introduced in v35.0.0 per #1014, + referencing #436. The approach had unintended + consequences, causing sdist installs to be missing + files. + +v35.0.0 +======= + +* #436: In egg_info.manifest_maker, no longer read + the file list from the manifest file, and instead + re-build it on each build. In this way, files removed + from the specification will not linger in the manifest. + As a result, any files manually added to the manifest + will be removed on subsequent egg_info invocations. + No projects should be manually adding files to the + manifest and should instead use MANIFEST.in or SCM + file finders to force inclusion of files in the manifest. + +v34.4.1 +======= + +* #1008: In MSVC support, use always the last version available for Windows SDK and UCRT SDK. + +* #1008: In MSVC support, fix "vcruntime140.dll" returned path with Visual Studio 2017. + +* #992: In msvc.msvc9_query_vcvarsall, ensure the + returned dicts have str values and not Unicode for + compatibility with os.environ. + +v34.4.0 +======= + +* #995: In MSVC support, add support for "Microsoft Visual Studio 2017" and "Microsoft Visual Studio Build Tools 2017". + +* #999 via #1007: Extend support for declarative package + config in a setup.cfg file to include the options + ``python_requires`` and ``py_modules``. + +v34.3.3 +======= + +* #967 (and #997): Explicitly import submodules of + packaging to account for environments where the imports + of those submodules is not implied by other behavior. + +v34.3.2 +======= + +* #993: Fix documentation upload by correcting + rendering of content-type in _build_multipart + on Python 3. + +v34.3.1 +======= + +* #988: Trap ``os.unlink`` same as ``os.remove`` in + ``auto_chmod`` error handler. + +* #983: Fixes to invalid escape sequence deprecations on + Python 3.6. + +v34.3.0 +======= + +* #941: In the upload command, if the username is blank, + default to ``getpass.getuser()``. + +* #971: Correct distutils findall monkeypatch to match + appropriate versions (namely Python 3.4.6). + +v34.2.0 +======= + +* #966: Add support for reading dist-info metadata and + thus locating Distributions from zip files. + +* #968: Allow '+' and '!' in egg fragments + so that it can take package names that contain + PEP 440 conforming version specifiers. + +v34.1.1 +======= + +* #953: More aggressively employ the compatibility issue + originally added in #706. + +v34.1.0 +======= + +* #930: ``build_info`` now accepts two new parameters + to optimize and customize the building of C libraries. + +v34.0.3 +======= + +* #947: Loosen restriction on the version of six required, + restoring compatibility with environments relying on + six 1.6.0 and later. + +v34.0.2 +======= + +* #882: Ensure extras are honored when building the + working set. +* #913: Fix issue in develop if package directory has + a trailing slash. + +v34.0.1 +======= + +* #935: Fix glob syntax in graft. + +v34.0.0 +======= + +* #581: Instead of vendoring the growing list of + dependencies that Setuptools requires to function, + Setuptools now requires these dependencies just like + any other project. Unlike other projects, however, + Setuptools cannot rely on ``setup_requires`` to + demand the dependencies it needs to install because + its own machinery would be necessary to pull those + dependencies if not present (a bootstrapping problem). + As a result, Setuptools no longer supports self upgrade or + installation in the general case. Instead, users are + directed to use pip to install and upgrade using the + ``wheel`` distributions of setuptools. + + Users are welcome to contrive other means to install + or upgrade Setuptools using other means, such as + pre-installing the Setuptools dependencies with pip + or a bespoke bootstrap tool, but such usage is not + recommended and is not supported. + + As discovered in #940, not all versions of pip will + successfully install Setuptools from its pre-built + wheel. If you encounter issues with "No module named + six" or "No module named packaging", especially + following a line "Running setup.py egg_info for package + setuptools", then your pip is not new enough. + + There's an additional issue in pip where setuptools + is upgraded concurrently with other source packages, + described in pip #4253. The proposed workaround is to + always upgrade Setuptools first prior to upgrading + other packages that would upgrade Setuptools. + +v33.1.1 +======= + +* #921: Correct issue where certifi fallback not being + reached on Windows. + +v33.1.0 +======= + +Installation via pip, as indicated in the `Python Packaging +User's Guide `_, +is the officially-supported mechanism for installing +Setuptools, and this recommendation is now explicit in the +much more concise README. + +Other edits and tweaks were made to the documentation. The +codebase is unchanged. + +v33.0.0 +======= + +* #619: Removed support for the ``tag_svn_revision`` + distribution option. If Subversion tagging support is + still desired, consider adding the functionality to + setuptools_svn in setuptools_svn #2. + +v32.3.1 +======= + +* #866: Use ``dis.Bytecode`` on Python 3.4 and later in + ``setuptools.depends``. + +v32.3.0 +======= + +* #889: Backport proposed fix for disabling interpolation in + distutils.Distribution.parse_config_files. + +v32.2.0 +======= + +* #884: Restore support for running the tests under + `pytest-runner `_ + by ensuring that PYTHONPATH is honored in tests invoking + a subprocess. + +v32.1.3 +======= + +* #706: Add rmtree compatibility shim for environments where + rmtree fails when passed a unicode string. + +v32.1.2 +======= + +* #893: Only release sdist in zip format as warehouse now + disallows releasing two different formats. + +v32.1.1 +======= + +* #704: More selectively ensure that 'rmtree' is not invoked with + a byte string, enabling it to remove files that are non-ascii, + even on Python 2. + +* #712: In 'sandbox.run_setup', ensure that ``__file__`` is + always a ``str``, modeling the behavior observed by the + interpreter when invoking scripts and modules. + +v32.1.0 +======= + +* #891: In 'test' command on test failure, raise DistutilsError, + suppression invocation of subsequent commands. + +v32.0.0 +======= + +* #890: Revert #849. ``global-exclude .foo`` will not match all + ``*.foo`` files any more. Package authors must add an explicit + wildcard, such as ``global-exclude *.foo``, to match all + ``.foo`` files. See #886, #849. + +v31.0.1 +======= + +* #885: Fix regression where 'pkg_resources._rebuild_mod_path' + would fail when a namespace package's '__path__' was not + a list with a sort attribute. + +v31.0.0 +======= + +* #250: Install '-nspkg.pth' files for packages installed + with 'setup.py develop'. These .pth files allow + namespace packages installed by pip or develop to + co-mingle. This change required the removal of the + change for #805 and pip #1924, introduced in 28.3.0 and implicated + in #870, but means that namespace packages not in a + site packages directory will no longer work on Python + earlier than 3.5, whereas before they would work on + Python not earlier than 3.3. + +v30.4.0 +======= + +* #879: For declarative config: + + - read_configuration() now accepts ignore_option_errors argument. This allows scraping tools to read metadata without a need to download entire packages. E.g. we can gather some stats right from GitHub repos just by downloading setup.cfg. + + - packages find: directive now supports fine tuning from a subsection. The same arguments as for find() are accepted. + +v30.3.0 +======= + +* #394 via #862: Added support for `declarative package + config in a setup.cfg file + `_. + +v30.2.1 +======= + +* #850: In test command, invoke unittest.main with + indication not to exit the process. + +v30.2.0 +======= + +* #854: Bump to vendored Packaging 16.8. + +v30.1.0 +======= + +* #846: Also trap 'socket.error' when opening URLs in + package_index. + +* #849: Manifest processing now matches the filename + pattern anywhere in the filename and not just at the + start. Restores behavior found prior to 28.5.0. + +v30.0.0 +======= + +* #864: Drop support for Python 3.2. Systems requiring + Python 3.2 support must use 'setuptools < 30'. + +* #825: Suppress warnings for single files. + +* #830 via #843: Once again restored inclusion of data + files to sdists, but now trap TypeError caused by + techniques employed rjsmin and similar. + +v29.0.1 +======= + +* #861: Re-release of v29.0.1 with the executable script + launchers bundled. Now, launchers are included by default + and users that want to disable this behavior must set the + environment variable + 'SETUPTOOLS_INSTALL_WINDOWS_SPECIFIC_FILES' to + a false value like "false" or "0". + +v29.0.0 +======= + +* #841: Drop special exception for packages invoking + win32com during the build/install process. See + Distribute #118 for history. + +v28.8.0 +======= + +* #629: Per the discussion, refine the sorting to use version + value order for more accurate detection of the latest + available version when scanning for packages. See also + #829. + +* #837: Rely on the config var "SO" for Python 3.3.0 only + when determining the ext filename. + +v28.7.1 +======= + +* #827: Update PyPI root for dependency links. + +* #833: Backed out changes from #830 as the implementation + seems to have problems in some cases. + +v28.7.0 +======= + +* #832: Moved much of the namespace package handling + functionality into a separate module for re-use in something + like #789. +* #830: ``sdist`` command no longer suppresses the inclusion + of data files, re-aligning with the expectation of distutils + and addressing #274 and #521. + +v28.6.1 +======= + +* #816: Fix manifest file list order in tests. + +v28.6.0 +======= + +* #629: When scanning for packages, ``pkg_resources`` now + ignores empty egg-info directories and gives precedence to + packages whose versions are lexicographically greatest, + a rough approximation for preferring the latest available + version. + +v28.5.0 +======= + +* #810: Tests are now invoked with tox and not setup.py test. +* #249 and #450 via #764: Avoid scanning the whole tree + when building the manifest. Also fixes a long-standing bug + where patterns in ``MANIFEST.in`` had implicit wildcard + matching. This caused ``global-exclude .foo`` to exclude + all ``*.foo`` files, but also ``global-exclude bar.py`` to + exclude ``foo_bar.py``. + +v28.4.0 +======= + +* #732: Now extras with a hyphen are honored per PEP 426. +* #811: Update to pyparsing 2.1.10. +* Updated ``setuptools.command.sdist`` to re-use most of + the functionality directly from ``distutils.command.sdist`` + for the ``add_defaults`` method with strategic overrides. + See #750 for rationale. +* #760 via #762: Look for certificate bundle where SUSE + Linux typically presents it. Use ``certifi.where()`` to locate + the bundle. + +v28.3.0 +======= + +* #809: In ``find_packages()``, restore support for excluding + a parent package without excluding a child package. + +* #805: Disable ``-nspkg.pth`` behavior on Python 3.3+ where + PEP-420 functionality is adequate. Fixes pip #1924. + +v28.1.0 +======= + +* #803: Bump certifi to 2016.9.26. + +v28.0.0 +======= + +* #733: Do not search excluded directories for packages. + This introduced a backwards incompatible change in ``find_packages()`` + so that ``find_packages(exclude=['foo']) == []``, excluding subpackages of ``foo``. + Previously, ``find_packages(exclude=['foo']) == ['foo.bar']``, + even though the parent ``foo`` package was excluded. + +* #795: Bump certifi. + +* #719: Suppress decoding errors and instead log a warning + when metadata cannot be decoded. + +v27.3.1 +======= + +* #790: In MSVC monkeypatching, explicitly patch each + function by name in the target module instead of inferring + the module from the function's ``__module__``. Improves + compatibility with other packages that might have previously + patched distutils functions (i.e. NumPy). + +v27.3.0 +======= + +* #794: In test command, add installed eggs to PYTHONPATH + when invoking tests so that subprocesses will also have the + dependencies available. Fixes `tox 330 + `_. + +* #795: Update vendored pyparsing 2.1.9. + +v27.2.0 +======= + +* #520 and #513: Suppress ValueErrors in fixup_namespace_packages + when lookup fails. + +* Nicer, more consistent interfaces for msvc monkeypatching. + +v27.1.2 +======= + +* #779 via #781: Fix circular import. + +v27.1.1 +======= + +* #778: Fix MSVC monkeypatching. + +v27.1.0 +======= + +* Introduce the (private) ``monkey`` module to encapsulate + the distutils monkeypatching behavior. + +v27.0.0 +======= + +* Now use Warehouse by default for + ``upload``, patching ``distutils.config.PyPIRCCommand`` to + affect default behavior. + + Any config in .pypirc should be updated to replace + + https://pypi.python.org/pypi/ + + with + + https://upload.pypi.org/legacy/ + + Similarly, any passwords stored in the keyring should be + updated to use this new value for "system". + + The ``upload_docs`` command will continue to use the python.org + site, but the command is now deprecated. Users are urged to use + Read The Docs instead. + +* #776: Use EXT_SUFFIX for py_limited_api renaming. + +* #774 and #775: Use LegacyVersion from packaging when + detecting numpy versions. + +v26.1.1 +======= + +* Re-release of 26.1.0 with pytest pinned to allow for automated + deployment and thus proper packaging environment variables, + fixing issues with missing executable launchers. + +v26.1.0 +======= + +* #763: ``pkg_resources.get_default_cache`` now defers to the + :pypi:`appdirs` project to + resolve the cache directory. Adds a vendored dependency on + appdirs to pkg_resources. + +v26.0.0 +======= + +* #748: By default, sdists are now produced in gzipped tarfile + format by default on all platforms, adding forward compatibility + for the same behavior in Python 3.6 (See Python #27819). + +* #459 via #736: On Windows with script launchers, + sys.argv[0] now reflects + the name of the entry point, consistent with the behavior in + distlib and pip wrappers. + +* #752 via #753: When indicating ``py_limited_api`` to Extension, + it must be passed as a keyword argument. + +v25.4.0 +======= + +* Add Extension(py_limited_api=True). When set to a truthy value, + that extension gets a filename appropriate for code using Py_LIMITED_API. + When used correctly this allows a single compiled extension to work on + all future versions of CPython 3. + The py_limited_api argument only controls the filename. To be + compatible with multiple versions of Python 3, the C extension + will also need to set -DPy_LIMITED_API=... and be modified to use + only the functions in the limited API. + +v25.3.0 +======= + +* #739 Fix unquoted libpaths by fixing compatibility between ``numpy.distutils`` and ``distutils._msvccompiler`` for numpy < 1.11.2 (Fix issue #728, error also fixed in Numpy). + +* #731: Bump certifi. + +* Style updates. See #740, #741, #743, #744, #742, #747. + +* #735: include license file. + +v25.2.0 +======= + +* #612 via #730: Add a LICENSE file which needs to be provided by the terms of + the MIT license. + +v25.1.6 +======= + +* #725: revert ``library_dir_option`` patch (Error is related to ``numpy.distutils`` and make errors on non Numpy users). + +v25.1.5 +======= + +* #720 +* #723: Improve patch for ``library_dir_option``. + +v25.1.4 +======= + +* #717 +* #713 +* #707: Fix Python 2 compatibility for MSVC by catching errors properly. +* #715: Fix unquoted libpaths by patching ``library_dir_option``. + +v25.1.3 +======= + +* #714 and #704: Revert fix as it breaks other components + downstream that can't handle unicode. See #709, #710, + and #712. + +v25.1.2 +======= + +* #704: Fix errors when installing a zip sdist that contained + files named with non-ascii characters on Windows would + crash the install when it attempted to clean up the build. +* #646: MSVC compatibility - catch errors properly in + RegistryInfo.lookup. +* #702: Prevent UnboundLocalError when initial working_set + is empty. + +v25.1.1 +======= + +* #686: Fix issue in sys.path ordering by pkg_resources when + rewrite technique is "raw". +* #699: Fix typo in msvc support. + +v25.1.0 +======= + +* #609: Setuptools will now try to download a distribution from + the next possible download location if the first download fails. + This means you can now specify multiple links as ``dependency_links`` + and all links will be tried until a working download link is encountered. + +v25.0.2 +======= + +* #688: Fix AttributeError in setup.py when invoked not from + the current directory. + +v25.0.1 +======= + +* Cleanup of setup.py script. + +* Fixed documentation builders by allowing setup.py + to be imported without having bootstrapped the + metadata. + +* More style cleanup. See #677, #678, #679, #681, #685. + +v25.0.0 +======= + +* #674: Default ``sys.path`` manipulation by easy-install.pth + is now "raw", meaning that when writing easy-install.pth + during any install operation, the ``sys.path`` will not be + rewritten and will no longer give preference to easy_installed + packages. + + To retain the old behavior when using any easy_install + operation (including ``setup.py install`` when setuptools is + present), set the environment variable: + + SETUPTOOLS_SYS_PATH_TECHNIQUE=rewrite + + This project hopes that that few if any environments find it + necessary to retain the old behavior, and intends to drop + support for it altogether in a future release. Please report + any relevant concerns in the ticket for this change. + +v24.3.1 +======= + +* #398: Fix shebang handling on Windows in script + headers where spaces in ``sys.executable`` would + produce an improperly-formatted shebang header, + introduced in 12.0 with the fix for #188. + +* #663, #670: More style updates. + +v24.3.0 +======= + +* #516: Disable ``os.link`` to avoid hard linking + in ``sdist.make_distribution``, avoiding errors on + systems that support hard links but not on the + file system in which the build is occurring. + +v24.2.1 +======= + +* #667: Update Metadata-Version to 1.2 when + ``python_requires`` is supplied. + +v24.2.0 +======= + +* #631: Add support for ``python_requires`` keyword. + +v24.1.1 +======= + +* More style updates. See #660, #661, #641. + +v24.1.0 +======= + +* #659: ``setup.py`` now will fail fast and with a helpful + error message when the necessary metadata is missing. +* More style updates. See #656, #635, #640, + #644, #650, #652, and #655. + +v24.0.3 +======= + +* Updated style in much of the codebase to match + community expectations. See #632, #633, #634, + #637, #639, #638, #642, #648. + +v24.0.2 +======= + +* If MSVC++14 is needed ``setuptools.msvc`` now redirect + user to Visual C++ Build Tools web page. + +v24.0.1 +======= + +* #625 and #626: Fixes on ``setuptools.msvc`` mainly + for Python 2 and Linux. + +v24.0.0 +======= + +* Pull Request #174: Add more aggressive support for + standalone Microsoft Visual C++ compilers in + msvc9compiler patch. + Particularly : Windows SDK 6.1 and 7.0 + (MSVC++ 9.0), Windows SDK 7.1 (MSVC++ 10.0), + Visual C++ Build Tools 2015 (MSVC++14) +* Renamed ``setuptools.msvc9_support`` to + ``setuptools.msvc``. + +v23.2.1 +======= + +Re-release of v23.2.0, which was missing the intended +commits. + +* #623: Remove used of deprecated 'U' flag when reading + manifests. + +v23.1.0 +======= + +* #619: Deprecated ``tag_svn_revision`` distribution + option. + +v23.0.0 +======= + +* #611: Removed ARM executables for CLI and GUI script + launchers on Windows. If this was a feature you cared + about, please comment in the ticket. +* #604: Removed docs building support. The project + now relies on documentation hosted at + https://setuptools.pypa.io/. + +v22.0.5 +======= + +* #604: Restore repository for upload_docs command + to restore publishing of docs during release. + +v22.0.4 +======= + +* #589: Upload releases to pypi.io using the upload + hostname and legacy path. + +v22.0.3 +======= + +* #589: Releases are now uploaded to pypi.io (Warehouse) + even when releases are made on Twine via Travis. + +v22.0.2 +======= + +* #589: Releases are now uploaded to pypi.io (Warehouse). + +v22.0.1 +======= + +* #190: On Python 2, if unicode is passed for packages to + ``build_py`` command, it will be handled just as with + text on Python 3. + +v22.0.0 +======= + +Intended to be v21.3.0, but jaraco accidentally released as +a major bump. + +* #598: Setuptools now lists itself first in the User-Agent + for web requests, better following the guidelines in + `RFC 7231 + `_. + +v21.2.2 +======= + +* Minor fixes to changelog and docs. + +v21.2.1 +======= + +* #261: Exclude directories when resolving globs in + package_data. + +v21.2.0 +======= + +* #539: In the easy_install get_site_dirs, honor all + paths found in ``site.getsitepackages``. + +v21.1.0 +======= + +* #572: In build_ext, now always import ``_CONFIG_VARS`` + from ``distutils`` rather than from ``sysconfig`` + to allow ``distutils.sysconfig.customize_compiler`` + configure the OS X compiler for ``-dynamiclib``. + +v21.0.0 +======= + +* Removed ez_setup.py from Setuptools sdist. The + bootstrap script will be maintained in its own + branch and should be generally be retrieved from + its canonical location at + https://bootstrap.pypa.io/ez_setup.py. + +v20.10.0 +======== + +* #553: egg_info section is now generated in a + deterministic order, matching the order generated + by earlier versions of Python. Except on Python 2.6, + order is preserved when existing settings are present. +* #556: Update to Packaging 16.7, restoring support + for deprecated ``python_implmentation`` marker. +* #555: Upload command now prompts for a password + when uploading to PyPI (or other repository) if no + password is present in .pypirc or in the keyring. + +v20.9.0 +======= + +* #548: Update certify version to 2016.2.28 +* #545: Safely handle deletion of non-zip eggs in rotate + command. + +v20.8.1 +======= + +* Issue #544: Fix issue with extra environment marker + processing in WorkingSet due to refactor in v20.7.0. + +v20.8.0 +======= + +* Issue #543: Re-release so that latest release doesn't + cause déjà vu with distribute and setuptools 0.7 in + older environments. + +v20.7.0 +======= + +* Refactored extra environment marker processing + in WorkingSet. +* Issue #533: Fixed intermittent test failures. +* Issue #536: In msvc9_support, trap additional exceptions + that might occur when importing + ``distutils.msvc9compiler`` in mingw environments. +* Issue #537: Provide better context when package + metadata fails to decode in UTF-8. + +v20.6.8 +======= + +* Issue #523: Restored support for environment markers, + now honoring 'extra' environment markers. + +v20.6.7 +======= + +* Issue #523: Disabled support for environment markers + introduced in v20.5. + +v20.6.6 +======= + +* Issue #503: Restore support for PEP 345 environment + markers by updating to Packaging 16.6. + +v20.6.0 +======= + +* New release process that relies on + `bumpversion `_ + and Travis CI for continuous deployment. +* Project versioning semantics now follow + `semver `_ precisely. + The 'v' prefix on version numbers now also allows + version numbers to be referenced in the changelog, + e.g. http://setuptools.pypa.io/en/latest/history.html#v20-6-0. + +20.5 +==== + +* BB Pull Request #185, #470: Add support for environment markers + in requirements in install_requires, setup_requires, + tests_require as well as adding a test for the existing + extra_requires machinery. + +20.4 +==== + +* Issue #422: Moved hosting to + `Github `_ + from `Bitbucket `_. + Issues have been migrated, though all issues and comments + are attributed to bb-migration. So if you have a particular + issue or issues to which you've been subscribed, you will + want to "watch" the equivalent issue in Github. + The Bitbucket project will be retained for the indefinite + future, but Github now hosts the canonical project repository. + +20.3.1 +====== + +* Issue #519: Remove import hook when reloading the + ``pkg_resources`` module. +* BB Pull Request #184: Update documentation in ``pkg_resources`` + around new ``Requirement`` implementation. + +20.3 +==== + +* BB Pull Request #179: ``pkg_resources.Requirement`` objects are + now a subclass of ``packaging.requirements.Requirement``, + allowing any environment markers and url (if any) to be + affiliated with the requirement +* BB Pull Request #179: Restore use of RequirementParseError + exception unintentionally dropped in 20.2. + +20.2.2 +====== + +* Issue #502: Correct regression in parsing of multiple + version specifiers separated by commas and spaces. + +20.2.1 +====== + +* Issue #499: Restore compatibility for legacy versions + by bumping to packaging 16.4. + +20.2 +==== + +* Changelog now includes release dates and links to PEPs. +* BB Pull Request #173: Replace dual PEP 345 _markerlib implementation + and PEP 426 implementation of environment marker support from + packaging 16.1 and PEP 508. Fixes Issue #122. + See also BB Pull Request #175, BB Pull Request #168, and + BB Pull Request #164. Additionally: + + - ``Requirement.parse`` no longer retains the order of extras. + - ``parse_requirements`` now requires that all versions be + PEP-440 compliant, as revealed in #499. Packages released + with invalid local versions should be re-released using + the proper local version syntax, e.g. ``mypkg-1.0+myorg.1``. + +20.1.1 +====== + +* Update ``upload_docs`` command to also honor keyring + for password resolution. + +20.1 +==== + +* Added support for using passwords from keyring in the upload + command. See `the upload docs + `_ + for details. + +20.0 +==== + +* Issue #118: Once again omit the package metadata (egg-info) + from the list of outputs in ``--record``. This version of setuptools + can no longer be used to upgrade pip earlier than 6.0. + +19.7 +==== + +* Off-project PR: `0dcee79 `_ and `f9bd9b9 `_ + For FreeBSD, also `honor root certificates from ca_root_nss `_. + +19.6.2 +====== + +* Issue #491: Correct regression incurred in 19.4 where + a double-namespace package installed using pip would + cause a TypeError. + +19.6.1 +====== + +* Restore compatibility for PyPy 3 compatibility lost in + 19.4.1 addressing Issue #487. +* ``setuptools.launch`` shim now loads scripts in a new + namespace, avoiding getting relative imports from + the setuptools package on Python 2. + +19.6 +==== + +* Added a new entry script ``setuptools.launch``, + implementing the shim found in + ``pip.util.setuptools_build``. Use this command to launch + distutils-only packages under setuptools in the same way that + pip does, causing the setuptools monkeypatching of distutils + to be invoked prior to invoking a script. Useful for debugging + or otherwise installing a distutils-only package under + setuptools when pip isn't available or otherwise does not + expose the desired functionality. For example:: + + $ python -m setuptools.launch setup.py develop + +* Issue #488: Fix dual manifestation of Extension class in + extension packages installed as dependencies when Cython + is present. + +19.5 +==== + +* Issue #486: Correct TypeError when getfilesystemencoding + returns None. +* Issue #139: Clarified the license as MIT. +* BB Pull Request #169: Removed special handling of command + spec in scripts for Jython. + +19.4.1 +====== + +* Issue #487: Use direct invocation of ``importlib.machinery`` + in ``pkg_resources`` to avoid missing detection on relevant + platforms. + +19.4 +==== + +* Issue #341: Correct error in path handling of package data + files in ``build_py`` command when package is empty. +* Distribute #323, Issue #141, Issue #207, and + BB Pull Request #167: Another implementation of + ``pkg_resources.WorkingSet`` and ``pkg_resources.Distribution`` + that supports replacing an extant package with a new one, + allowing for setup_requires dependencies to supersede installed + packages for the session. + +19.3 +==== + +* Issue #229: Implement new technique for readily incorporating + dependencies conditionally from vendored copies or primary + locations. Adds a new dependency on six. + +19.2 +==== + +* BB Pull Request #163: Add get_command_list method to Distribution. +* BB Pull Request #162: Add missing whitespace to multiline string + literals. + +19.1.1 +====== + +* Issue #476: Cast version to string (using default encoding) + to avoid creating Unicode types on Python 2 clients. +* Issue #477: In Powershell downloader, use explicit rendering + of strings, rather than rely on ``repr``, which can be + incorrect (especially on Python 2). + +19.1 +==== + +* Issue #215: The bootstrap script ``ez_setup.py`` now + automatically detects + the latest version of setuptools (using PyPI JSON API) rather + than hard-coding a particular value. +* Issue #475: Fix incorrect usage in _translate_metadata2. + +19.0 +==== + +* Issue #442: Use RawConfigParser for parsing .pypirc file. + Interpolated values are no longer honored in .pypirc files. + +18.8.1 +====== + +* Issue #440: Prevent infinite recursion when a SandboxViolation + or other UnpickleableException occurs in a sandbox context + with setuptools hidden. Fixes regression introduced in Setuptools + 12.0. + +18.8 +==== + +* Deprecated ``egg_info.get_pkg_info_revision``. +* Issue #471: Don't rely on repr for an HTML attribute value in + package_index. +* Issue #419: Avoid errors in FileMetadata when the metadata directory + is broken. +* Issue #472: Remove deprecated use of 'U' in mode parameter + when opening files. + +18.7.1 +====== + +* Issue #469: Refactored logic for Issue #419 fix to re-use metadata + loading from Provider. + +18.7 +==== + +* Update dependency on certify. +* BB Pull Request #160: Improve detection of gui script in + ``easy_install._adjust_header``. +* Made ``test.test_args`` a non-data property; alternate fix + for the issue reported in BB Pull Request #155. +* Issue #453: In ``ez_setup`` bootstrap module, unload all + ``pkg_resources`` modules following download. +* BB Pull Request #158: Honor PEP-488 when excluding + files for namespace packages. +* Issue #419 and BB Pull Request #144: Add experimental support for + reading the version info from distutils-installed metadata rather + than using the version in the filename. + +18.6.1 +====== + +* Issue #464: Correct regression in invocation of superclass on old-style + class on Python 2. + +18.6 +==== + +* Issue #439: When installing entry_point scripts under development, + omit the version number of the package, allowing any version of the + package to be used. + +18.5 +==== + +* In preparation for dropping support for Python 3.2, a warning is + now logged when pkg_resources is imported on Python 3.2 or earlier + Python 3 versions. +* `Add support for python_platform_implementation environment marker + `_. +* `Fix dictionary mutation during iteration + `_. + +18.4 +==== + +* Issue #446: Test command now always invokes unittest, even + if no test suite is supplied. + +18.3.2 +====== + +* Correct another regression in setuptools.findall + where the fix for Python #12885 was lost. + +18.3.1 +====== + +* Issue #425: Correct regression in setuptools.findall. + +18.3 +==== + +* BB Pull Request #135: Setuptools now allows disabling of + the manipulation of the sys.path + during the processing of the easy-install.pth file. To do so, set + the environment variable ``SETUPTOOLS_SYS_PATH_TECHNIQUE`` to + anything but "rewrite" (consider "raw"). During any install operation + with manipulation disabled, setuptools packages will be appended to + sys.path naturally. + + Future versions may change the default behavior to disable + manipulation. If so, the default behavior can be retained by setting + the variable to "rewrite". + +* Issue #257: ``easy_install --version`` now shows more detail + about the installation location and Python version. + +* Refactor setuptools.findall in preparation for re-submission + back to distutils. + +18.2 +==== + +* Issue #412: More efficient directory search in ``find_packages``. + +18.1 +==== + +* Upgrade to vendored packaging 15.3. + +18.0.1 +====== + +* Issue #401: Fix failure in test suite. + +18.0 +==== + +* Dropped support for builds with Pyrex. Only Cython is supported. +* Issue #288: Detect Cython later in the build process, after + ``setup_requires`` dependencies are resolved. + Projects backed by Cython can now be readily built + with a ``setup_requires`` dependency. For example:: + + ext = setuptools.Extension('mylib', ['src/CythonStuff.pyx', 'src/CStuff.c']) + setuptools.setup( + ... + ext_modules=[ext], + setup_requires=['cython'], + ) + + For compatibility with older versions of setuptools, packagers should + still include ``src/CythonMod.c`` in the source distributions or + require that Cython be present before building source distributions. + However, for systems with this build of setuptools, Cython will be + downloaded on demand. +* Issue #396: Fixed test failure on OS X. +* BB Pull Request #136: Remove excessive quoting from shebang headers + for Jython. + +17.1.1 +====== + +* Backed out unintended changes to pkg_resources, restoring removal of + deprecated imp module (`ref + `_). + +17.1 +==== + +* Issue #380: Add support for range operators on environment + marker evaluation. + +17.0 +==== + +* Issue #378: Do not use internal importlib._bootstrap module. +* Issue #390: Disallow console scripts with path separators in + the name. Removes unintended functionality and brings behavior + into parity with pip. + +16.0 +==== + +* BB Pull Request #130: Better error messages for errors in + parsed requirements. +* BB Pull Request #133: Removed ``setuptools.tests`` from the + installed packages. +* BB Pull Request #129: Address deprecation warning due to usage + of imp module. + +15.2 +==== + +* Issue #373: Provisionally expose + ``pkg_resources._initialize_master_working_set``, allowing for + imperative re-initialization of the master working set. + +15.1 +==== + +* Updated to Packaging 15.1 to address Packaging #28. +* Fix ``setuptools.sandbox._execfile()`` with Python 3.1. + +15.0 +==== + +* BB Pull Request #126: DistributionNotFound message now lists the package or + packages that required it. E.g.:: + + pkg_resources.DistributionNotFound: The 'colorama>=0.3.1' distribution was not found and is required by smlib.log. + + Note that zc.buildout once dependended on the string rendering of this + message to determine the package that was not found. This expectation + has since been changed, but older versions of buildout may experience + problems. See Buildout #242 for details. + +14.3.1 +====== + +* Issue #307: Removed PEP-440 warning during parsing of versions + in ``pkg_resources.Distribution``. +* Issue #364: Replace deprecated usage with recommended usage of + ``EntryPoint.load``. + +14.3 +==== + +* Issue #254: When creating temporary egg cache on Unix, use mode 755 + for creating the directory to avoid the subsequent warning if + the directory is group writable. + +14.2 +==== + +* Issue #137: Update ``Distribution.hashcmp`` so that Distributions with + None for pyversion or platform can be compared against Distributions + defining those attributes. + +14.1.1 +====== + +* Issue #360: Removed undesirable behavior from test runs, preventing + write tests and installation to system site packages. + +14.1 +==== + +* BB Pull Request #125: Add ``__ne__`` to Requirement class. +* Various refactoring of easy_install. + +14.0 +==== + +* Bootstrap script now accepts ``--to-dir`` to customize save directory or + allow for re-use of existing repository of setuptools versions. See + BB Pull Request #112 for background. +* Issue #285: ``easy_install`` no longer will default to installing + packages to the "user site packages" directory if it is itself installed + there. Instead, the user must pass ``--user`` in all cases to install + packages to the user site packages. + This behavior now matches that of "pip install". To configure + an environment to always install to the user site packages, consider + using the "install-dir" and "scripts-dir" parameters to easy_install + through an appropriate distutils config file. + +13.0.2 +====== + +* Issue #359: Include pytest.ini in the sdist so invocation of py.test on the + sdist honors the pytest configuration. + +13.0.1 +====== + +Re-release of 13.0. Intermittent connectivity issues caused the release +process to fail and PyPI uploads no longer accept files for 13.0. + +13.0 +==== + +* Issue #356: Back out BB Pull Request #119 as it requires Setuptools 10 or later + as the source during an upgrade. +* Removed build_py class from setup.py. According to 892f439d216e, this + functionality was added to support upgrades from old Distribute versions, + 0.6.5 and 0.6.6. + +12.4 +==== + +* BB Pull Request #119: Restore writing of ``setup_requires`` to metadata + (previously added in 8.4 and removed in 9.0). + +12.3 +==== + +* Documentation is now linked using the rst.linker package. +* Fix ``setuptools.command.easy_install.extract_wininst_cfg()`` + with Python 2.6 and 2.7. +* Issue #354. Added documentation on building setuptools + documentation. + +12.2 +==== + +* Issue #345: Unload all modules under pkg_resources during + ``ez_setup.use_setuptools()``. +* Issue #336: Removed deprecation from ``ez_setup.use_setuptools``, + as it is clearly still used by buildout's bootstrap. ``ez_setup`` + remains deprecated for use by individual packages. +* Simplified implementation of ``ez_setup.use_setuptools``. + +12.1 +==== + +* BB Pull Request #118: Soften warning for non-normalized versions in + Distribution. + +12.0.5 +====== + +* Issue #339: Correct Attribute reference in ``cant_write_to_target``. +* Issue #336: Deprecated ``ez_setup.use_setuptools``. + +12.0.4 +====== + +* Issue #335: Fix script header generation on Windows. + +12.0.3 +====== + +* Fixed incorrect class attribute in ``install_scripts``. Tests would be nice. + +12.0.2 +====== + +* Issue #331: Fixed ``install_scripts`` command on Windows systems corrupting + the header. + +12.0.1 +====== + +* Restore ``setuptools.command.easy_install.sys_executable`` for pbr + compatibility. For the future, tools should construct a CommandSpec + explicitly. + +12.0 +==== + +* Issue #188: Setuptools now support multiple entities in the value for + ``build.executable``, such that an executable of "/usr/bin/env my-python" may + be specified. This means that systems with a specified executable whose name + has spaces in the path must be updated to escape or quote that value. +* Deprecated ``easy_install.ScriptWriter.get_writer``, replaced by ``.best()`` + with slightly different semantics (no force_windows flag). + +11.3.1 +====== + +* Issue #327: Formalize and restore support for any printable character in an + entry point name. + +11.3 +==== + +* Expose ``EntryPoint.resolve`` in place of EntryPoint._load, implementing the + simple, non-requiring load. Deprecated all uses of ``EntryPoint._load`` + except for calling with no parameters, which is just a shortcut for + ``ep.require(); ep.resolve();``. + + Apps currently invoking ``ep.load(require=False)`` should instead do the + following if wanting to avoid the deprecating warning:: + + getattr(ep, "resolve", lambda: ep.load(require=False))() + +11.2 +==== + +* Pip #2326: Report deprecation warning at stacklevel 2 for easier diagnosis. + +11.1 +==== + +* Issue #281: Since Setuptools 6.1 (Issue #268), a ValueError would be raised + in certain cases where VersionConflict was raised with two arguments, which + occurred in ``pkg_resources.WorkingSet.find``. This release adds support + for indicating the dependent packages while maintaining support for + a VersionConflict when no dependent package context is known. New unit tests + now capture the expected interface. + +11.0 +==== + +* Interop #3: Upgrade to Packaging 15.0; updates to PEP 440 so that >1.7 does + not exclude 1.7.1 but does exclude 1.7.0 and 1.7.0.post1. + +10.2.1 +====== + +* Issue #323: Fix regression in entry point name parsing. + +10.2 +==== + +* Deprecated use of EntryPoint.load(require=False). Passing a boolean to a + function to select behavior is an anti-pattern. Instead use + ``Entrypoint._load()``. +* Substantial refactoring of all unit tests. Tests are now much leaner and + re-use a lot of fixtures and contexts for better clarity of purpose. + +10.1 +==== + +* Issue #320: Added a compatibility implementation of + ``sdist._default_revctrl`` + so that systems relying on that interface do not fail (namely, Ubuntu 12.04 + and similar Debian releases). + +10.0.1 +====== + +* Issue #319: Fixed issue installing pure distutils packages. + +10.0 +==== + +* Issue #313: Removed built-in support for subversion. Projects wishing to + retain support for subversion will need to use a third party library. The + extant implementation is being ported to :pypi:`setuptools_svn`. +* Issue #315: Updated setuptools to hide its own loaded modules during + installation of another package. This change will enable setuptools to + upgrade (or downgrade) itself even when its own metadata and implementation + change. + +9.1 +=== + +* Prefer vendored packaging library `as recommended + `_. + +9.0.1 +===== + +* Issue #312: Restored presence of pkg_resources API tests (doctest) to sdist. + +9.0 +=== + +* Issue #314: Disabled support for ``setup_requires`` metadata to avoid issue + where Setuptools was unable to upgrade over earlier versions. + +8.4 +=== + +* BB Pull Request #106: Now write ``setup_requires`` metadata. + +8.3 +=== + +* Issue #311: Decoupled pkg_resources from setuptools once again. + ``pkg_resources`` is now a package instead of a module. + +8.2.1 +===== + +* Issue #306: Suppress warnings about Version format except in select scenarios + (such as installation). + +8.2 +=== + +* BB Pull Request #85: Search egg-base when adding egg-info to manifest. + +8.1 +=== + +* Upgrade ``packaging`` to 14.5, giving preference to "rc" as designator for + release candidates over "c". +* PEP-440 warnings are now raised as their own class, + ``pkg_resources.PEP440Warning``, instead of RuntimeWarning. +* Disabled warnings on empty versions. + +8.0.4 +===== + +* Upgrade ``packaging`` to 14.4, fixing an error where there is a + different result for if 2.0.5 is contained within >2.0dev and >2.0.dev even + though normalization rules should have made them equal. +* Issue #296: Add warning when a version is parsed as legacy. This warning will + make it easier for developers to recognize deprecated version numbers. + +8.0.3 +===== + +* Issue #296: Restored support for ``__hash__`` on parse_version results. + +8.0.2 +===== + +* Issue #296: Restored support for ``__getitem__`` and sort operations on + parse_version result. + +8.0.1 +===== + +* Issue #296: Restore support for iteration over parse_version result, but + deprecated that usage with a warning. Fixes failure with buildout. + +8.0 +=== + +* Implement PEP 440 within + pkg_resources and setuptools. This change + deprecates some version numbers such that they will no longer be installable + without using the ``===`` escape hatch. See `the changes to test_resources + `_ + for specific examples of version numbers and specifiers that are no longer + supported. Setuptools now "vendors" the `packaging + `_ library. + +7.0 +=== + +* Issue #80, Issue #209: Eggs that are downloaded for ``setup_requires``, + ``test_requires``, etc. are now placed in a ``./.eggs`` directory instead of + directly in the current directory. This choice of location means the files + can be readily managed (removed, ignored). Additionally, + later phases or invocations of setuptools will not detect the package as + already installed and ignore it for permanent install (See #209). + + This change is indicated as backward-incompatible as installations that + depend on the installation in the current directory will need to account for + the new location. Systems that ignore ``*.egg`` will probably need to be + adapted to ignore ``.eggs``. The files will need to be manually moved or + will be retrieved again. Most use cases will require no attention. + +6.1 +=== + +* Issue #268: When resolving package versions, a VersionConflict now reports + which package previously required the conflicting version. + +6.0.2 +===== + +* Issue #262: Fixed regression in pip install due to egg-info directories + being omitted. Re-opens Issue #118. + +6.0.1 +===== + +* Issue #259: Fixed regression with namespace package handling on ``single + version, externally managed`` installs. + +6.0 +=== + +* Issue #100: When building a distribution, Setuptools will no longer match + default files using platform-dependent case sensitivity, but rather will + only match the files if their case matches exactly. As a result, on Windows + and other case-insensitive file systems, files with names such as + 'readme.txt' or 'README.TXT' will be omitted from the distribution and a + warning will be issued indicating that 'README.txt' was not found. Other + filenames affected are: + + - README.rst + - README + - setup.cfg + - setup.py (or the script name) + - test/test*.py + + Any users producing distributions with filenames that match those above + case-insensitively, but not case-sensitively, should rename those files in + their repository for better portability. +* BB Pull Request #72: When using ``single_version_externally_managed``, the + exclusion list now includes Python 3.2 ``__pycache__`` entries. +* BB Pull Request #76 and BB Pull Request #78: lines in top_level.txt are now + ordered deterministically. +* Issue #118: The egg-info directory is now no longer included in the list + of outputs. +* Issue #258: Setuptools now patches distutils msvc9compiler to + recognize the specially-packaged compiler package for easy extension module + support on Python 2.6, 2.7, and 3.2. + +5.8 +=== + +* Issue #237: ``pkg_resources`` now uses explicit detection of Python 2 vs. + Python 3, supporting environments where builtins have been patched to make + Python 3 look more like Python 2. + +5.7 +=== + +* Issue #240: Based on real-world performance measures against 5.4, zip + manifests are now cached in all circumstances. The + ``PKG_RESOURCES_CACHE_ZIP_MANIFESTS`` environment variable is no longer + relevant. The observed "memory increase" referenced in the 5.4 release + notes and detailed in Issue #154 was likely not an increase over the status + quo, but rather only an increase over not storing the zip info at all. + +5.6 +=== + +* Issue #242: Use absolute imports in svn_utils to avoid issues if the + installing package adds an xml module to the path. + +5.5.1 +===== + +* Issue #239: Fix typo in 5.5 such that fix did not take. + +5.5 +=== + +* Issue #239: Setuptools now includes the setup_requires directive on + Distribution objects and validates the syntax just like install_requires + and tests_require directives. + +5.4.2 +===== + +* Issue #236: Corrected regression in execfile implementation for Python 2.6. + +5.4.1 +===== + +* Python #7776: (ssl_support) Correct usage of host for validation when + tunneling for HTTPS. + +5.4 +=== + +* Issue #154: ``pkg_resources`` will now cache the zip manifests rather than + re-processing the same file from disk multiple times, but only if the + environment variable ``PKG_RESOURCES_CACHE_ZIP_MANIFESTS`` is set. Clients + that package many modules in the same zip file will see some improvement + in startup time by enabling this feature. This feature is not enabled by + default because it causes a substantial increase in memory usage. + +5.3 +=== + +* Issue #185: Make svn tagging work on the new style SVN metadata. + Thanks cazabon! +* Prune revision control directories (e.g .svn) from base path + as well as sub-directories. + +5.2 +=== + +* Added a `Developer Guide + `_ to the official + documentation. +* Some code refactoring and cleanup was done with no intended behavioral + changes. +* During install_egg_info, the generated lines for namespace package .pth + files are now processed even during a dry run. + +5.1 +=== + +* Issue #202: Implemented more robust cache invalidation for the ZipImporter, + building on the work in Issue #168. Special thanks to Jurko Gospodnetic and + PJE. + +5.0.2 +===== + +* Issue #220: Restored script templates. + +5.0.1 +===== + +* Renamed script templates to end with .tmpl now that they no longer need + to be processed by 2to3. Fixes spurious syntax errors during build/install. + +5.0 +=== + +* Issue #218: Re-release of 3.8.1 to signal that it supersedes 4.x. +* Incidentally, script templates were updated not to include the triple-quote + escaping. + +3.7.1 and 3.8.1 and 4.0.1 +========================= + +* Issue #213: Use legacy StringIO behavior for compatibility under pbr. +* Issue #218: Setuptools 3.8.1 superseded 4.0.1, and 4.x was removed + from the available versions to install. + +4.0 +=== + +* Issue #210: ``setup.py develop`` now copies scripts in binary mode rather + than text mode, matching the behavior of the ``install`` command. + +3.8 +=== + +* Extend Issue #197 workaround to include all Python 3 versions prior to + 3.2.2. + +3.7 +=== + +* Issue #193: Improved handling of Unicode filenames when building manifests. + +3.6 +=== + +* Issue #203: Honor proxy settings for Powershell downloader in the bootstrap + routine. + +3.5.2 +===== + +* Issue #168: More robust handling of replaced zip files and stale caches. + Fixes ZipImportError complaining about a 'bad local header'. + +3.5.1 +===== + +* Issue #199: Restored ``install._install`` for compatibility with earlier + NumPy versions. + +3.5 +=== + +* Issue #195: Follow symbolic links in find_packages (restoring behavior + broken in 3.4). +* Issue #197: On Python 3.1, PKG-INFO is now saved in a UTF-8 encoding instead + of ``sys.getpreferredencoding`` to match the behavior on Python 2.6-3.4. +* Issue #192: Preferred bootstrap location is now + https://bootstrap.pypa.io/ez_setup.py (mirrored from former location). + +3.4.4 +===== + +* Issue #184: Correct failure where find_package over-matched packages + when directory traversal isn't short-circuited. + +3.4.3 +===== + +* Issue #183: Really fix test command with Python 3.1. + +3.4.2 +===== + +* Issue #183: Fix additional regression in test command on Python 3.1. + +3.4.1 +===== + +* Issue #180: Fix regression in test command not caught by py.test-run tests. + +3.4 +=== + +* Issue #176: Add parameter to the test command to support a custom test + runner: --test-runner or -r. +* Issue #177: Now assume most common invocation to install command on + platforms/environments without stack support (issuing a warning). Setuptools + now installs naturally on IronPython. Behavior on CPython should be + unchanged. + +3.3 +=== + +* Add ``include`` parameter to ``setuptools.find_packages()``. + +3.2 +=== + +* BB Pull Request #39: Add support for C++ targets from Cython ``.pyx`` files. +* Issue #162: Update dependency on certifi to 1.0.1. +* Issue #164: Update dependency on wincertstore to 0.2. + +3.1 +=== + +* Issue #161: Restore Features functionality to allow backward compatibility + (for Features) until the uses of that functionality is sufficiently removed. + +3.0.2 +===== + +* Correct typo in previous bugfix. + +3.0.1 +===== + +* Issue #157: Restore support for Python 2.6 in bootstrap script where + ``zipfile.ZipFile`` does not yet have support for context managers. + +3.0 +=== + +* Issue #125: Prevent Subversion support from creating a ~/.subversion + directory just for checking the presence of a Subversion repository. +* Issue #12: Namespace packages are now imported lazily. That is, the mere + declaration of a namespace package in an egg on ``sys.path`` no longer + causes it to be imported when ``pkg_resources`` is imported. Note that this + change means that all of a namespace package's ``__init__.py`` files must + include a ``declare_namespace()`` call in order to ensure that they will be + handled properly at runtime. In 2.x it was possible to get away without + including the declaration, but only at the cost of forcing namespace + packages to be imported early, which 3.0 no longer does. +* Issue #148: When building (bdist_egg), setuptools no longer adds + ``__init__.py`` files to namespace packages. Any packages that rely on this + behavior will need to create ``__init__.py`` files and include the + ``declare_namespace()``. +* Issue #7: Setuptools itself is now distributed as a zip archive in addition to + tar archive. ez_setup.py now uses zip archive. This approach avoids the potential + security vulnerabilities presented by use of tar archives in ez_setup.py. + It also leverages the security features added to ZipFile.extract in Python 2.7.4. +* Issue #65: Removed deprecated Features functionality. +* BB Pull Request #28: Remove backport of ``_bytecode_filenames`` which is + available in Python 2.6 and later, but also has better compatibility with + Python 3 environments. +* Issue #156: Fix spelling of __PYVENV_LAUNCHER__ variable. + +2.2 +=== + +* Issue #141: Restored fix for allowing setup_requires dependencies to + override installed dependencies during setup. +* Issue #128: Fixed issue where only the first dependency link was honored + in a distribution where multiple dependency links were supplied. + +2.1.2 +===== + +* Issue #144: Read long_description using codecs module to avoid errors + installing on systems where LANG=C. + +2.1.1 +===== + +* Issue #139: Fix regression in re_finder for CVS repos (and maybe Git repos + as well). + +2.1 +=== + +* Issue #129: Suppress inspection of ``*.whl`` files when searching for files + in a zip-imported file. +* Issue #131: Fix RuntimeError when constructing an egg fetcher. + +2.0.2 +===== + +* Fix NameError during installation with Python implementations (e.g. Jython) + not containing parser module. +* Fix NameError in ``sdist:re_finder``. + +2.0.1 +===== + +* Issue #124: Fixed error in list detection in upload_docs. + +2.0 +=== + +* Issue #121: Exempt lib2to3 pickled grammars from DirectorySandbox. +* Issue #41: Dropped support for Python 2.4 and Python 2.5. Clients requiring + setuptools for those versions of Python should use setuptools 1.x. +* Removed ``setuptools.command.easy_install.HAS_USER_SITE``. Clients + expecting this boolean variable should use ``site.ENABLE_USER_SITE`` + instead. +* Removed ``pkg_resources.ImpWrapper``. Clients that expected this class + should use ``pkgutil.ImpImporter`` instead. + +1.4.2 +===== + +* Issue #116: Correct TypeError when reading a local package index on Python + 3. + +1.4.1 +===== + +* Issue #114: Use ``sys.getfilesystemencoding`` for decoding config in + ``bdist_wininst`` distributions. + +* Issue #105 and Issue #113: Establish a more robust technique for + determining the terminal encoding:: + + 1. Try ``getpreferredencoding`` + 2. If that returns US_ASCII or None, try the encoding from + ``getdefaultlocale``. If that encoding was a "fallback" because Python + could not figure it out from the environment or OS, encoding remains + unresolved. + 3. If the encoding is resolved, then make sure Python actually implements + the encoding. + 4. On the event of an error or unknown codec, revert to fallbacks + (UTF-8 on Darwin, ASCII on everything else). + 5. On the encoding is 'mac-roman' on Darwin, use UTF-8 as 'mac-roman' was + a bug on older Python releases. + + On a side note, it would seem that the encoding only matters for when SVN + does not yet support ``--xml`` and when getting repository and svn version + numbers. The ``--xml`` technique should yield UTF-8 according to some + messages on the SVN mailing lists. So if the version numbers are always + 7-bit ASCII clean, it may be best to only support the file parsing methods + for legacy SVN releases and support for SVN without the subprocess command + would simple go away as support for the older SVNs does. + +1.4 +=== + +* Issue #27: ``easy_install`` will now use credentials from .pypirc if + present for connecting to the package index. +* BB Pull Request #21: Omit unwanted newlines in ``package_index._encode_auth`` + when the username/password pair length indicates wrapping. + +1.3.2 +===== + +* Issue #99: Fix filename encoding issues in SVN support. + +1.3.1 +===== + +* Remove exuberant warning in SVN support when SVN is not used. + +1.3 +=== + +* Address security vulnerability in SSL match_hostname check as reported in + Python #17997. +* Prefer :pypi:`backports.ssl_match_hostname` for backport + implementation if present. +* Correct NameError in ``ssl_support`` module (``socket.error``). + +1.2 +=== + +* Issue #26: Add support for SVN 1.7. Special thanks to Philip Thiem for the + contribution. +* Issue #93: Wheels are now distributed with every release. Note that as + reported in Issue #108, as of Pip 1.4, scripts aren't installed properly + from wheels. Therefore, if using Pip to install setuptools from a wheel, + the ``easy_install`` command will not be available. +* Setuptools "natural" launcher support, introduced in 1.0, is now officially + supported. + +1.1.7 +===== + +* Fixed behavior of NameError handling in 'script template (dev).py' (script + launcher for 'develop' installs). +* ``ez_setup.py`` now ensures partial downloads are cleaned up following + a failed download. +* Distribute #363 and Issue #55: Skip an sdist test that fails on locales + other than UTF-8. + +1.1.6 +===== + +* Distribute #349: ``sandbox.execfile`` now opens the target file in binary + mode, thus honoring a BOM in the file when compiled. + +1.1.5 +===== + +* Issue #69: Second attempt at fix (logic was reversed). + +1.1.4 +===== + +* Issue #77: Fix error in upload command (Python 2.4). + +1.1.3 +===== + +* Fix NameError in previous patch. + +1.1.2 +===== + +* Issue #69: Correct issue where 404 errors are returned for URLs with + fragments in them (such as #egg=). + +1.1.1 +===== + +* Issue #75: Add ``--insecure`` option to ez_setup.py to accommodate + environments where a trusted SSL connection cannot be validated. +* Issue #76: Fix AttributeError in upload command with Python 2.4. + +1.1 +=== + +* Issue #71 (Distribute #333): EasyInstall now puts less emphasis on the + condition when a host is blocked via ``--allow-hosts``. +* Issue #72: Restored Python 2.4 compatibility in ``ez_setup.py``. + +1.0 +=== + +* Issue #60: On Windows, Setuptools supports deferring to another launcher, + such as Vinay Sajip's `pylauncher `_ + (included with Python 3.3) to launch console and GUI scripts and not install + its own launcher executables. This experimental functionality is currently + only enabled if the ``SETUPTOOLS_LAUNCHER`` environment variable is set to + "natural". In the future, this behavior may become default, but only after + it has matured and seen substantial adoption. The ``SETUPTOOLS_LAUNCHER`` + also accepts "executable" to force the default behavior of creating launcher + executables. +* Issue #63: Bootstrap script (ez_setup.py) now prefers Powershell, curl, or + wget for retrieving the Setuptools tarball for improved security of the + install. The script will still fall back to a simple ``urlopen`` on + platforms that do not have these tools. +* Issue #65: Deprecated the ``Features`` functionality. +* Issue #52: In ``VerifyingHTTPSConn``, handle a tunnelled (proxied) + connection. + +Backward-Incompatible Changes +----------------------------- + +This release includes a couple of backward-incompatible changes, but most if +not all users will find 1.0 a drop-in replacement for 0.9. + +* Issue #50: Normalized API of environment marker support. Specifically, + removed line number and filename from SyntaxErrors when returned from + ``pkg_resources.invalid_marker``. Any clients depending on the specific + string representation of exceptions returned by that function may need to + be updated to account for this change. +* Issue #50: SyntaxErrors generated by ``pkg_resources.invalid_marker`` are + normalized for cross-implementation consistency. +* Removed ``--ignore-conflicts-at-my-risk`` and ``--delete-conflicting`` + options to easy_install. These options have been deprecated since 0.6a11. + +0.9.8 +===== + +* Issue #53: Fix NameErrors in ``_vcs_split_rev_from_url``. + +0.9.7 +===== + +* Issue #49: Correct AttributeError on PyPy where a hashlib.HASH object does + not have a ``.name`` attribute. +* Issue #34: Documentation now refers to bootstrap script in code repository + referenced by bookmark. +* Add underscore-separated keys to environment markers (markerlib). + +0.9.6 +===== + +* Issue #44: Test failure on Python 2.4 when MD5 hash doesn't have a ``.name`` + attribute. + +0.9.5 +===== + +* Python #17980: Fix security vulnerability in SSL certificate validation. + +0.9.4 +===== + +* Issue #43: Fix issue (introduced in 0.9.1) with version resolution when + upgrading over other releases of Setuptools. + +0.9.3 +===== + +* Issue #42: Fix new ``AttributeError`` introduced in last fix. + +0.9.2 +===== + +* Issue #42: Fix regression where blank checksums would trigger an + ``AttributeError``. + +0.9.1 +===== + +* Distribute #386: Allow other positional and keyword arguments to os.open. +* Corrected dependency on certifi mis-referenced in 0.9. + +0.9 +=== + +* ``package_index`` now validates hashes other than MD5 in download links. + +0.8 +=== + +* Code base now runs on Python 2.4 - Python 3.3 without Python 2to3 + conversion. + +0.7.8 +===== + +* Distribute #375: Yet another fix for yet another regression. + +0.7.7 +===== + +* Distribute #375: Repair AttributeError created in last release (redo). +* Issue #30: Added test for get_cache_path. + +0.7.6 +===== + +* Distribute #375: Repair AttributeError created in last release. + +0.7.5 +===== + +* Issue #21: Restore Python 2.4 compatibility in ``test_easy_install``. +* Distribute #375: Merged additional warning from Distribute 0.6.46. +* Now honor the environment variable + ``SETUPTOOLS_DISABLE_VERSIONED_EASY_INSTALL_SCRIPT`` in addition to the now + deprecated ``DISTRIBUTE_DISABLE_VERSIONED_EASY_INSTALL_SCRIPT``. + +0.7.4 +===== + +* Issue #20: Fix comparison of parsed SVN version on Python 3. + +0.7.3 +===== + +* Issue #1: Disable installation of Windows-specific files on non-Windows systems. +* Use new sysconfig module with Python 2.7 or >=3.2. + +0.7.2 +===== + +* Issue #14: Use markerlib when the ``parser`` module is not available. +* Issue #10: ``ez_setup.py`` now uses HTTPS to download setuptools from PyPI. + +0.7.1 +===== + +* Fix NameError (Issue #3) again - broken in bad merge. + +0.7 +=== + +* Merged Setuptools and Distribute. See docs/merge.txt for details. + +Added several features that were slated for setuptools 0.6c12: + +* Index URL now defaults to HTTPS. +* Added experimental environment marker support. Now clients may designate a + PEP-426 environment marker for "extra" dependencies. Setuptools uses this + feature in ``setup.py`` for optional SSL and certificate validation support + on older platforms. Based on Distutils-SIG discussions, the syntax is + somewhat tentative. There should probably be a PEP with a firmer spec before + the feature should be considered suitable for use. +* Added support for SSL certificate validation when installing packages from + an HTTPS service. + +0.7b4 +===== + +* Issue #3: Fixed NameError in SSL support. + +0.6.49 +====== + +* Move warning check in ``get_cache_path`` to follow the directory creation + to avoid errors when the cache path does not yet exist. Fixes the error + reported in Distribute #375. + +0.6.48 +====== + +* Correct AttributeError in ``ResourceManager.get_cache_path`` introduced in + 0.6.46 (redo). + +0.6.47 +====== + +* Correct AttributeError in ``ResourceManager.get_cache_path`` introduced in + 0.6.46. + +0.6.46 +====== + +* Distribute #375: Issue a warning if the PYTHON_EGG_CACHE or otherwise + customized egg cache location specifies a directory that's group- or + world-writable. + +0.6.45 +====== + +* Distribute #379: ``distribute_setup.py`` now traps VersionConflict as well, + restoring ability to upgrade from an older setuptools version. + +0.6.44 +====== + +* ``distribute_setup.py`` has been updated to allow Setuptools 0.7 to + satisfy use_setuptools. + +0.6.43 +====== + +* Distribute #378: Restore support for Python 2.4 Syntax (regression in 0.6.42). + +0.6.42 +====== + +* External links finder no longer yields duplicate links. +* Distribute #337: Moved site.py to setuptools/site-patch.py (graft of very old + patch from setuptools trunk which inspired PR #31). + +0.6.41 +====== + +* Distribute #27: Use public api for loading resources from zip files rather than + the private method ``_zip_directory_cache``. +* Added a new function ``easy_install.get_win_launcher`` which may be used by + third-party libraries such as buildout to get a suitable script launcher. + +0.6.40 +====== + +* Distribute #376: brought back cli.exe and gui.exe that were deleted in the + previous release. + +0.6.39 +====== + +* Add support for console launchers on ARM platforms. +* Fix possible issue in GUI launchers where the subsystem was not supplied to + the linker. +* Launcher build script now refactored for robustness. +* Distribute #375: Resources extracted from a zip egg to the file system now also + check the contents of the file against the zip contents during each + invocation of get_resource_filename. + +0.6.38 +====== + +* Distribute #371: The launcher manifest file is now installed properly. + +0.6.37 +====== + +* Distribute #143: Launcher scripts, including easy_install itself, are now + accompanied by a manifest on 32-bit Windows environments to avoid the + Installer Detection Technology and thus undesirable UAC elevation described + in `this Microsoft article + `_. + +0.6.36 +====== + +* BB Pull Request #35: In Buildout #64, it was reported that + under Python 3, installation of distutils scripts could attempt to copy + the ``__pycache__`` directory as a file, causing an error, apparently only + under Windows. Easy_install now skips all directories when processing + metadata scripts. + +0.6.35 +====== + + +Note this release is backward-incompatible with distribute 0.6.23-0.6.34 in +how it parses version numbers. + +* Distribute #278: Restored compatibility with distribute 0.6.22 and setuptools + 0.6. Updated the documentation to match more closely with the version + parsing as intended in setuptools 0.6. + +0.6.34 +====== + +* Distribute #341: 0.6.33 fails to build under Python 2.4. + +0.6.33 +====== + +* Fix 2 errors with Jython 2.5. +* Fix 1 failure with Jython 2.5 and 2.7. +* Disable workaround for Jython scripts on Linux systems. +* Distribute #336: ``setup.py`` no longer masks failure exit code when tests fail. +* Fix issue in pkg_resources where try/except around a platform-dependent + import would trigger hook load failures on Mercurial. See pull request 32 + for details. +* Distribute #341: Fix a ResourceWarning. + +0.6.32 +====== + +* Fix test suite with Python 2.6. +* Fix some DeprecationWarnings and ResourceWarnings. +* Distribute #335: Backed out ``setup_requires`` superseding installed requirements + until regression can be addressed. + +0.6.31 +====== + +* Distribute #303: Make sure the manifest only ever contains UTF-8 in Python 3. +* Distribute #329: Properly close files created by tests for compatibility with + Jython. +* Work around Jython #1980 and Jython #1981. +* Distribute #334: Provide workaround for packages that reference ``sys.__stdout__`` + such as numpy does. This change should address pypa/virtualenv#359 as long + as the system encoding is UTF-8 or the IO encoding is specified in the + environment, i.e.:: + + PYTHONIOENCODING=utf8 pip install numpy + +* Fix for encoding issue when installing from Windows executable on Python 3. +* Distribute #323: Allow ``setup_requires`` requirements to supersede installed + requirements. Added some new keyword arguments to existing pkg_resources + methods. Also had to updated how __path__ is handled for namespace packages + to ensure that when a new egg distribution containing a namespace package is + placed on sys.path, the entries in __path__ are found in the same order they + would have been in had that egg been on the path when pkg_resources was + first imported. + +0.6.30 +====== + +* Distribute #328: Clean up temporary directories in distribute_setup.py. +* Fix fatal bug in distribute_setup.py. + +0.6.29 +====== + +* BB Pull Request #14: Honor file permissions in zip files. +* Distribute #327: Merged pull request #24 to fix a dependency problem with pip. +* Merged pull request #23 to fix pypa/virtualenv#301. +* If Sphinx is installed, the ``upload_docs`` command now runs ``build_sphinx`` + to produce uploadable documentation. +* Distribute #326: ``upload_docs`` provided mangled auth credentials under Python 3. +* Distribute #320: Fix check for "creatable" in distribute_setup.py. +* Distribute #305: Remove a warning that was triggered during normal operations. +* Distribute #311: Print metadata in UTF-8 independent of platform. +* Distribute #303: Read manifest file with UTF-8 encoding under Python 3. +* Distribute #301: Allow to run tests of namespace packages when using 2to3. +* Distribute #304: Prevent import loop in site.py under Python 3.3. +* Distribute #283: Re-enable scanning of ``*.pyc`` / ``*.pyo`` files on Python 3.3. +* Distribute #299: The develop command didn't work on Python 3, when using 2to3, + as the egg link would go to the Python 2 source. Linking to the 2to3'd code + in build/lib makes it work, although you will have to rebuild the module + before testing it. +* Distribute #306: Even if 2to3 is used, we build in-place under Python 2. +* Distribute #307: Prints the full path when .svn/entries is broken. +* Distribute #313: Support for sdist subcommands (Python 2.7) +* Distribute #314: test_local_index() would fail an OS X. +* Distribute #310: Non-ascii characters in a namespace __init__.py causes errors. +* Distribute #218: Improved documentation on behavior of ``package_data`` and + ``include_package_data``. Files indicated by ``package_data`` are now included + in the manifest. +* ``distribute_setup.py`` now allows a ``--download-base`` argument for retrieving + distribute from a specified location. + +0.6.28 +====== + +* Distribute #294: setup.py can now be invoked from any directory. +* Scripts are now installed honoring the umask. +* Added support for .dist-info directories. +* Distribute #283: Fix and disable scanning of ``*.pyc`` / ``*.pyo`` files on + Python 3.3. + +0.6.27 +====== + +* Support current snapshots of CPython 3.3. +* Distribute now recognizes README.rst as a standard, default readme file. +* Exclude 'encodings' modules when removing modules from sys.modules. + Workaround for #285. +* Distribute #231: Don't fiddle with system python when used with buildout + (bootstrap.py) + +0.6.26 +====== + +* Distribute #183: Symlinked files are now extracted from source distributions. +* Distribute #227: Easy_install fetch parameters are now passed during the + installation of a source distribution; now fulfillment of setup_requires + dependencies will honor the parameters passed to easy_install. + +0.6.25 +====== + +* Distribute #258: Workaround a cache issue +* Distribute #260: distribute_setup.py now accepts the --user parameter for + Python 2.6 and later. +* Distribute #262: package_index.open_with_auth no longer throws LookupError + on Python 3. +* Distribute #269: AttributeError when an exception occurs reading Manifest.in + on late releases of Python. +* Distribute #272: Prevent TypeError when namespace package names are unicode + and single-install-externally-managed is used. Also fixes PIP issue + 449. +* Distribute #273: Legacy script launchers now install with Python2/3 support. + +0.6.24 +====== + +* Distribute #249: Added options to exclude 2to3 fixers + +0.6.23 +====== + +* Distribute #244: Fixed a test +* Distribute #243: Fixed a test +* Distribute #239: Fixed a test +* Distribute #240: Fixed a test +* Distribute #241: Fixed a test +* Distribute #237: Fixed a test +* Distribute #238: easy_install now uses 64bit executable wrappers on 64bit Python +* Distribute #208: Fixed parsed_versions, it now honors post-releases as noted in the documentation +* Distribute #207: Windows cli and gui wrappers pass CTRL-C to child python process +* Distribute #227: easy_install now passes its arguments to setup.py bdist_egg +* Distribute #225: Fixed a NameError on Python 2.5, 2.4 + +0.6.21 +====== + +* Distribute #225: FIxed a regression on py2.4 + +0.6.20 +====== + +* Distribute #135: Include url in warning when processing URLs in package_index. +* Distribute #212: Fix issue where easy_instal fails on Python 3 on windows installer. +* Distribute #213: Fix typo in documentation. + +0.6.19 +====== + +* Distribute #206: AttributeError: 'HTTPMessage' object has no attribute 'getheaders' + +0.6.18 +====== + +* Distribute #210: Fixed a regression introduced by Distribute #204 fix. + +0.6.17 +====== + +* Support 'DISTRIBUTE_DISABLE_VERSIONED_EASY_INSTALL_SCRIPT' environment + variable to allow to disable installation of easy_install-${version} script. +* Support Python >=3.1.4 and >=3.2.1. +* Distribute #204: Don't try to import the parent of a namespace package in + declare_namespace +* Distribute #196: Tolerate responses with multiple Content-Length headers +* Distribute #205: Sandboxing doesn't preserve working_set. Leads to setup_requires + problems. + +0.6.16 +====== + +* Builds sdist gztar even on Windows (avoiding Distribute #193). +* Distribute #192: Fixed metadata omitted on Windows when package_dir + specified with forward-slash. +* Distribute #195: Cython build support. +* Distribute #200: Issues with recognizing 64-bit packages on Windows. + +0.6.15 +====== + +* Fixed typo in bdist_egg +* Several issues under Python 3 has been solved. +* Distribute #146: Fixed missing DLL files after easy_install of windows exe package. + +0.6.14 +====== + +* Distribute #170: Fixed unittest failure. Thanks to Toshio. +* Distribute #171: Fixed race condition in unittests cause deadlocks in test suite. +* Distribute #143: Fixed a lookup issue with easy_install. + Thanks to David and Zooko. +* Distribute #174: Fixed the edit mode when its used with setuptools itself + +0.6.13 +====== + +* Distribute #160: 2.7 gives ValueError("Invalid IPv6 URL") +* Distribute #150: Fixed using ~/.local even in a --no-site-packages virtualenv +* Distribute #163: scan index links before external links, and don't use the md5 when + comparing two distributions + +0.6.12 +====== + +* Distribute #149: Fixed various failures on 2.3/2.4 + +0.6.11 +====== + +* Found another case of SandboxViolation - fixed +* Distribute #15 and Distribute #48: Introduced a socket timeout of 15 seconds on url openings +* Added indexsidebar.html into MANIFEST.in +* Distribute #108: Fixed TypeError with Python3.1 +* Distribute #121: Fixed --help install command trying to actually install. +* Distribute #112: Added an os.makedirs so that Tarek's solution will work. +* Distribute #133: Added --no-find-links to easy_install +* Added easy_install --user +* Distribute #100: Fixed develop --user not taking '.' in PYTHONPATH into account +* Distribute #134: removed spurious UserWarnings. Patch by VanLindberg +* Distribute #138: cant_write_to_target error when setup_requires is used. +* Distribute #147: respect the sys.dont_write_bytecode flag + +0.6.10 +====== + +* Reverted change made for the DistributionNotFound exception because + zc.buildout uses the exception message to get the name of the + distribution. + +0.6.9 +===== + +* Distribute #90: unknown setuptools version can be added in the working set +* Distribute #87: setupt.py doesn't try to convert distribute_setup.py anymore + Initial Patch by arfrever. +* Distribute #89: added a side bar with a download link to the doc. +* Distribute #86: fixed missing sentence in pkg_resources doc. +* Added a nicer error message when a DistributionNotFound is raised. +* Distribute #80: test_develop now works with Python 3.1 +* Distribute #93: upload_docs now works if there is an empty sub-directory. +* Distribute #70: exec bit on non-exec files +* Distribute #99: now the standalone easy_install command doesn't uses a + "setup.cfg" if any exists in the working directory. It will use it + only if triggered by ``install_requires`` from a setup.py call + (install, develop, etc). +* Distribute #101: Allowing ``os.devnull`` in Sandbox +* Distribute #92: Fixed the "no eggs" found error with MacPort + (platform.mac_ver() fails) +* Distribute #103: test_get_script_header_jython_workaround not run + anymore under py3 with C or POSIX local. Contributed by Arfrever. +* Distribute #104: removed the assertion when the installation fails, + with a nicer message for the end user. +* Distribute #100: making sure there's no SandboxViolation when + the setup script patches setuptools. + +0.6.8 +===== + +* Added "check_packages" in dist. (added in Setuptools 0.6c11) +* Fixed the DONT_PATCH_SETUPTOOLS state. + +0.6.7 +===== + +* Distribute #58: Added --user support to the develop command +* Distribute #11: Generated scripts now wrap their call to the script entry point + in the standard "if name == 'main'" +* Added the 'DONT_PATCH_SETUPTOOLS' environment variable, so virtualenv + can drive an installation that doesn't patch a global setuptools. +* Reviewed unladen-swallow specific change from + http://code.google.com/p/unladen-swallow/source/detail?spec=svn875&r=719 + and determined that it no longer applies. Distribute should work fine with + Unladen Swallow 2009Q3. +* Distribute #21: Allow PackageIndex.open_url to gracefully handle all cases of a + httplib.HTTPException instead of just InvalidURL and BadStatusLine. +* Removed virtual-python.py from this distribution and updated documentation + to point to the actively maintained virtualenv instead. +* Distribute #64: use_setuptools no longer rebuilds the distribute egg every + time it is run +* use_setuptools now properly respects the requested version +* use_setuptools will no longer try to import a distribute egg for the + wrong Python version +* Distribute #74: no_fake should be True by default. +* Distribute #72: avoid a bootstrapping issue with easy_install -U + +0.6.6 +===== + +* Unified the bootstrap file so it works on both py2.x and py3k without 2to3 + (patch by Holger Krekel) + +0.6.5 +===== + +* Distribute #65: cli.exe and gui.exe are now generated at build time, + depending on the platform in use. + +* Distribute #67: Fixed doc typo (PEP 381/PEP 382). + +* Distribute no longer shadows setuptools if we require a 0.7-series + setuptools. And an error is raised when installing a 0.7 setuptools with + distribute. + +* When run from within buildout, no attempt is made to modify an existing + setuptools egg, whether in a shared egg directory or a system setuptools. + +* Fixed a hole in sandboxing allowing builtin file to write outside of + the sandbox. + +0.6.4 +===== + +* Added the generation of ``distribute_setup_3k.py`` during the release. + This closes Distribute #52. + +* Added an upload_docs command to easily upload project documentation to + PyPI's https://pythonhosted.org. This close issue Distribute #56. + +* Fixed a bootstrap bug on the use_setuptools() API. + +0.6.3 +===== + +setuptools +---------- + +* Fixed a bunch of calls to file() that caused crashes on Python 3. + +bootstrapping +------------- + +* Fixed a bug in sorting that caused bootstrap to fail on Python 3. + +0.6.2 +===== + +setuptools +---------- + +* Added Python 3 support; see docs/python3.txt. + This closes Old Setuptools #39. + +* Added option to run 2to3 automatically when installing on Python 3. + This closes issue Distribute #31. + +* Fixed invalid usage of requirement.parse, that broke develop -d. + This closes Old Setuptools #44. + +* Fixed script launcher for 64-bit Windows. + This closes Old Setuptools #2. + +* KeyError when compiling extensions. + This closes Old Setuptools #41. + +bootstrapping +------------- + +* Fixed bootstrap not working on Windows. This closes issue Distribute #49. + +* Fixed 2.6 dependencies. This closes issue Distribute #50. + +* Make sure setuptools is patched when running through easy_install + This closes Old Setuptools #40. + +0.6.1 +===== + +setuptools +---------- + +* package_index.urlopen now catches BadStatusLine and malformed url errors. + This closes Distribute #16 and Distribute #18. + +* zip_ok is now False by default. This closes Old Setuptools #33. + +* Fixed invalid URL error catching. Old Setuptools #20. + +* Fixed invalid bootstrapping with easy_install installation (Distribute #40). + Thanks to Florian Schulze for the help. + +* Removed buildout/bootstrap.py. A new repository will create a specific + bootstrap.py script. + + +bootstrapping +------------- + +* The bootstrap process leave setuptools alone if detected in the system + and --root or --prefix is provided, but is not in the same location. + This closes Distribute #10. + +0.6 +=== + +setuptools +---------- + +* Packages required at build time where not fully present at install time. + This closes Distribute #12. + +* Protected against failures in tarfile extraction. This closes Distribute #10. + +* Made Jython api_tests.txt doctest compatible. This closes Distribute #7. + +* sandbox.py replaced builtin type file with builtin function open. This + closes Distribute #6. + +* Immediately close all file handles. This closes Distribute #3. + +* Added compatibility with Subversion 1.6. This references Distribute #1. + +pkg_resources +------------- + +* Avoid a call to /usr/bin/sw_vers on OSX and use the official platform API + instead. Based on a patch from ronaldoussoren. This closes issue #5. + +* Fixed a SandboxViolation for mkdir that could occur in certain cases. + This closes Distribute #13. + +* Allow to find_on_path on systems with tight permissions to fail gracefully. + This closes Distribute #9. + +* Corrected inconsistency between documentation and code of add_entry. + This closes Distribute #8. + +* Immediately close all file handles. This closes Distribute #3. + +easy_install +------------ + +* Immediately close all file handles. This closes Distribute #3. + +0.6c9 +===== + + * Fixed a missing files problem when using Windows source distributions on + non-Windows platforms, due to distutils not handling manifest file line + endings correctly. + + * Updated Pyrex support to work with Pyrex 0.9.6 and higher. + + * Minor changes for Jython compatibility, including skipping tests that can't + work on Jython. + + * Fixed not installing eggs in ``install_requires`` if they were also used for + ``setup_requires`` or ``tests_require``. + + * Fixed not fetching eggs in ``install_requires`` when running tests. + + * Allow ``ez_setup.use_setuptools()`` to upgrade existing setuptools + installations when called from a standalone ``setup.py``. + + * Added a warning if a namespace package is declared, but its parent package + is not also declared as a namespace. + + * Support Subversion 1.5 + + * Removed use of deprecated ``md5`` module if ``hashlib`` is available + + * Fixed ``bdist_wininst upload`` trying to upload the ``.exe`` twice + + * Fixed ``bdist_egg`` putting a ``native_libs.txt`` in the source package's + ``.egg-info``, when it should only be in the built egg's ``EGG-INFO``. + + * Ensure that _full_name is set on all shared libs before extensions are + checked for shared lib usage. (Fixes a bug in the experimental shared + library build support.) + + * Fix to allow unpacked eggs containing native libraries to fail more + gracefully under Google App Engine (with an ``ImportError`` loading the + C-based module, instead of getting a ``NameError``). + + * Fixed ``win32.exe`` support for .pth files, so unnecessary directory nesting + is flattened out in the resulting egg. (There was a case-sensitivity + problem that affected some distributions, notably ``pywin32``.) + + * Prevent ``--help-commands`` and other junk from showing under Python 2.5 + when running ``easy_install --help``. + + * Fixed GUI scripts sometimes not executing on Windows + + * Fixed not picking up dependency links from recursive dependencies. + + * Only make ``.py``, ``.dll`` and ``.so`` files executable when unpacking eggs + + * Changes for Jython compatibility + + * Improved error message when a requirement is also a directory name, but the + specified directory is not a source package. + + * Fixed ``--allow-hosts`` option blocking ``file:`` URLs + + * Fixed HTTP SVN detection failing when the page title included a project + name (e.g. on SourceForge-hosted SVN) + + * Fix Jython script installation to handle ``#!`` lines better when + ``sys.executable`` is a script. + + * Removed use of deprecated ``md5`` module if ``hashlib`` is available + + * Keep site directories (e.g. ``site-packages``) from being included in + ``.pth`` files. + +0.6c7 +===== + + * Fixed ``distutils.filelist.findall()`` crashing on broken symlinks, and + ``egg_info`` command failing on new, uncommitted SVN directories. + + * Fix import problems with nested namespace packages installed via + ``--root`` or ``--single-version-externally-managed``, due to the + parent package not having the child package as an attribute. + + * ``ftp:`` download URLs now work correctly. + + * The default ``--index-url`` is now ``https://pypi.python.org/simple``, to use + the Python Package Index's new simpler (and faster!) REST API. + +0.6c6 +===== + + * Added ``--egg-path`` option to ``develop`` command, allowing you to force + ``.egg-link`` files to use relative paths (allowing them to be shared across + platforms on a networked drive). + + * Fix not building binary RPMs correctly. + + * Fix "eggsecutables" (such as setuptools' own egg) only being runnable with + bash-compatible shells. + + * Fix ``#!`` parsing problems in Windows ``.exe`` script wrappers, when there + was whitespace inside a quoted argument or at the end of the ``#!`` line + (a regression introduced in 0.6c4). + + * Fix ``test`` command possibly failing if an older version of the project + being tested was installed on ``sys.path`` ahead of the test source + directory. + + * Fix ``find_packages()`` treating ``ez_setup`` and directories with ``.`` in + their names as packages. + + * EasyInstall no longer aborts the installation process if a URL it wants to + retrieve can't be downloaded, unless the URL is an actual package download. + Instead, it issues a warning and tries to keep going. + + * Fixed distutils-style scripts originally built on Windows having their line + endings doubled when installed on any platform. + + * Added ``--local-snapshots-ok`` flag, to allow building eggs from projects + installed using ``setup.py develop``. + + * Fixed not HTML-decoding URLs scraped from web pages + +0.6c5 +===== + + * Fix uploaded ``bdist_rpm`` packages being described as ``bdist_egg`` + packages under Python versions less than 2.5. + + * Fix uploaded ``bdist_wininst`` packages being described as suitable for + "any" version by Python 2.5, even if a ``--target-version`` was specified. + + * Fixed ``.dll`` files on Cygwin not having executable permissions when an egg + is installed unzipped. + +0.6c4 +===== + + * Overhauled Windows script wrapping to support ``bdist_wininst`` better. + Scripts installed with ``bdist_wininst`` will always use ``#!python.exe`` or + ``#!pythonw.exe`` as the executable name (even when built on non-Windows + platforms!), and the wrappers will look for the executable in the script's + parent directory (which should find the right version of Python). + + * Fix ``upload`` command not uploading files built by ``bdist_rpm`` or + ``bdist_wininst`` under Python 2.3 and 2.4. + + * Add support for "eggsecutable" headers: a ``#!/bin/sh`` script that is + prepended to an ``.egg`` file to allow it to be run as a script on Unix-ish + platforms. (This is mainly so that setuptools itself can have a single-file + installer on Unix, without doing multiple downloads, dealing with firewalls, + etc.) + + * Fix problem with empty revision numbers in Subversion 1.4 ``entries`` files + + * Use cross-platform relative paths in ``easy-install.pth`` when doing + ``develop`` and the source directory is a subdirectory of the installation + target directory. + + * Fix a problem installing eggs with a system packaging tool if the project + contained an implicit namespace package; for example if the ``setup()`` + listed a namespace package ``foo.bar`` without explicitly listing ``foo`` + as a namespace package. + + * Added support for HTTP "Basic" authentication using ``http://user:pass@host`` + URLs. If a password-protected page contains links to the same host (and + protocol), those links will inherit the credentials used to access the + original page. + + * Removed all special support for Sourceforge mirrors, as Sourceforge's + mirror system now works well for non-browser downloads. + + * Fixed not recognizing ``win32.exe`` installers that included a custom + bitmap. + + * Fixed not allowing ``os.open()`` of paths outside the sandbox, even if they + are opened read-only (e.g. reading ``/dev/urandom`` for random numbers, as + is done by ``os.urandom()`` on some platforms). + + * Fixed a problem with ``.pth`` testing on Windows when ``sys.executable`` + has a space in it (e.g., the user installed Python to a ``Program Files`` + directory). + +0.6c3 +===== + + * Fixed breakages caused by Subversion 1.4's new "working copy" format + + * You can once again use "python -m easy_install" with Python 2.4 and above. + + * Python 2.5 compatibility fixes added. + +0.6c2 +===== + + * The ``ez_setup`` module displays the conflicting version of setuptools (and + its installation location) when a script requests a version that's not + available. + + * Running ``setup.py develop`` on a setuptools-using project will now install + setuptools if needed, instead of only downloading the egg. + + * Windows script wrappers now support quoted arguments and arguments + containing spaces. (Patch contributed by Jim Fulton.) + + * The ``ez_setup.py`` script now actually works when you put a setuptools + ``.egg`` alongside it for bootstrapping an offline machine. + + * A writable installation directory on ``sys.path`` is no longer required to + download and extract a source distribution using ``--editable``. + + * Generated scripts now use ``-x`` on the ``#!`` line when ``sys.executable`` + contains non-ASCII characters, to prevent deprecation warnings about an + unspecified encoding when the script is run. + +0.6c1 +===== + + * Fixed ``AttributeError`` when trying to download a ``setup_requires`` + dependency when a distribution lacks a ``dependency_links`` setting. + + * Made ``zip-safe`` and ``not-zip-safe`` flag files contain a single byte, so + as to play better with packaging tools that complain about zero-length + files. + + * Made ``setup.py develop`` respect the ``--no-deps`` option, which it + previously was ignoring. + + * Support ``extra_path`` option to ``setup()`` when ``install`` is run in + backward-compatibility mode. + + * Source distributions now always include a ``setup.cfg`` file that explicitly + sets ``egg_info`` options such that they produce an identical version number + to the source distribution's version number. (Previously, the default + version number could be different due to the use of ``--tag-date``, or if + the version was overridden on the command line that built the source + distribution.) + + * EasyInstall now includes setuptools version information in the + ``User-Agent`` string sent to websites it visits. + +0.6b4 +===== + + * Fix ``register`` not obeying name/version set by ``egg_info`` command, if + ``egg_info`` wasn't explicitly run first on the same command line. + + * Added ``--no-date`` and ``--no-svn-revision`` options to ``egg_info`` + command, to allow suppressing tags configured in ``setup.cfg``. + + * Fixed redundant warnings about missing ``README`` file(s); it should now + appear only if you are actually a source distribution. + + * Fix creating Python wrappers for non-Python scripts + + * Fix ``ftp://`` directory listing URLs from causing a crash when used in the + "Home page" or "Download URL" slots on PyPI. + + * Fix ``sys.path_importer_cache`` not being updated when an existing zipfile + or directory is deleted/overwritten. + + * Fix not recognizing HTML 404 pages from package indexes. + + * Allow ``file://`` URLs to be used as a package index. URLs that refer to + directories will use an internally-generated directory listing if there is + no ``index.html`` file in the directory. + + * Allow external links in a package index to be specified using + ``rel="homepage"`` or ``rel="download"``, without needing the old + PyPI-specific visible markup. + + * Suppressed warning message about possibly-misspelled project name, if an egg + or link for that project name has already been seen. + +0.6b3 +===== + + * Fix ``bdist_egg`` not including files in subdirectories of ``.egg-info``. + + * Allow ``.py`` files found by the ``include_package_data`` option to be + automatically included. Remove duplicate data file matches if both + ``include_package_data`` and ``package_data`` are used to refer to the same + files. + + * Fix local ``--find-links`` eggs not being copied except with + ``--always-copy``. + + * Fix sometimes not detecting local packages installed outside of "site" + directories. + + * Fix mysterious errors during initial ``setuptools`` install, caused by + ``ez_setup`` trying to run ``easy_install`` twice, due to a code fallthru + after deleting the egg from which it's running. + +0.6b2 +===== + + * Don't install or update a ``site.py`` patch when installing to a + ``PYTHONPATH`` directory with ``--multi-version``, unless an + ``easy-install.pth`` file is already in use there. + + * Construct ``.pth`` file paths in such a way that installing an egg whose + name begins with ``import`` doesn't cause a syntax error. + + * Fixed a bogus warning message that wasn't updated since the 0.5 versions. + +0.6b1 +===== + + * Strip ``module`` from the end of compiled extension modules when computing + the name of a ``.py`` loader/wrapper. (Python's import machinery ignores + this suffix when searching for an extension module.) + + * Better ambiguity management: accept ``#egg`` name/version even if processing + what appears to be a correctly-named distutils file, and ignore ``.egg`` + files with no ``-``, since valid Python ``.egg`` files always have a version + number (but Scheme eggs often don't). + + * Support ``file://`` links to directories in ``--find-links``, so that + easy_install can build packages from local source checkouts. + + * Added automatic retry for Sourceforge mirrors. The new download process is + to first just try dl.sourceforge.net, then randomly select mirror IPs and + remove ones that fail, until something works. The removed IPs stay removed + for the remainder of the run. + + * Ignore bdist_dumb distributions when looking at download URLs. + +0.6a11 +====== + + * Added ``test_loader`` keyword to support custom test loaders + + * Added ``setuptools.file_finders`` entry point group to allow implementing + revision control plugins. + + * Added ``--identity`` option to ``upload`` command. + + * Added ``dependency_links`` to allow specifying URLs for ``--find-links``. + + * Enhanced test loader to scan packages as well as modules, and call + ``additional_tests()`` if present to get non-unittest tests. + + * Support namespace packages in conjunction with system packagers, by omitting + the installation of any ``__init__.py`` files for namespace packages, and + adding a special ``.pth`` file to create a working package in + ``sys.modules``. + + * Made ``--single-version-externally-managed`` automatic when ``--root`` is + used, so that most system packagers won't require special support for + setuptools. + + * Fixed ``setup_requires``, ``tests_require``, etc. not using ``setup.cfg`` or + other configuration files for their option defaults when installing, and + also made the install use ``--multi-version`` mode so that the project + directory doesn't need to support .pth files. + + * ``MANIFEST.in`` is now forcibly closed when any errors occur while reading + it. Previously, the file could be left open and the actual error would be + masked by problems trying to remove the open file on Windows systems. + + * Process ``dependency_links.txt`` if found in a distribution, by adding the + URLs to the list for scanning. + + * Use relative paths in ``.pth`` files when eggs are being installed to the + same directory as the ``.pth`` file. This maximizes portability of the + target directory when building applications that contain eggs. + + * Added ``easy_install-N.N`` script(s) for convenience when using multiple + Python versions. + + * Added automatic handling of installation conflicts. Eggs are now shifted to + the front of sys.path, in an order consistent with where they came from, + making EasyInstall seamlessly co-operate with system package managers. + + The ``--delete-conflicting`` and ``--ignore-conflicts-at-my-risk`` options + are now no longer necessary, and will generate warnings at the end of a + run if you use them. + + * Don't recursively traverse subdirectories given to ``--find-links``. + +0.6a10 +====== + + * Fixed the ``develop`` command ignoring ``--find-links``. + + * Added exhaustive testing of the install directory, including a spawn test + for ``.pth`` file support, and directory writability/existence checks. This + should virtually eliminate the need to set or configure ``--site-dirs``. + + * Added ``--prefix`` option for more do-what-I-mean-ishness in the absence of + RTFM-ing. :) + + * Enhanced ``PYTHONPATH`` support so that you don't have to put any eggs on it + manually to make it work. ``--multi-version`` is no longer a silent + default; you must explicitly use it if installing to a non-PYTHONPATH, + non-"site" directory. + + * Expand ``$variables`` used in the ``--site-dirs``, ``--build-directory``, + ``--install-dir``, and ``--script-dir`` options, whether on the command line + or in configuration files. + + * Improved SourceForge mirror processing to work faster and be less affected + by transient HTML changes made by SourceForge. + + * PyPI searches now use the exact spelling of requirements specified on the + command line or in a project's ``install_requires``. Previously, a + normalized form of the name was used, which could lead to unnecessary + full-index searches when a project's name had an underscore (``_``) in it. + + * EasyInstall can now download bare ``.py`` files and wrap them in an egg, + as long as you include an ``#egg=name-version`` suffix on the URL, or if + the ``.py`` file is listed as the "Download URL" on the project's PyPI page. + This allows third parties to "package" trivial Python modules just by + linking to them (e.g. from within their own PyPI page or download links + page). + + * The ``--always-copy`` option now skips "system" and "development" eggs since + they can't be reliably copied. Note that this may cause EasyInstall to + choose an older version of a package than what you expected, or it may cause + downloading and installation of a fresh version of what's already installed. + + * The ``--find-links`` option previously scanned all supplied URLs and + directories as early as possible, but now only directories and direct + archive links are scanned immediately. URLs are not retrieved unless a + package search was already going to go online due to a package not being + available locally, or due to the use of the ``--update`` or ``-U`` option. + + * Fixed the annoying ``--help-commands`` wart. + +0.6a9 +===== + + * The ``sdist`` command no longer uses the traditional ``MANIFEST`` file to + create source distributions. ``MANIFEST.in`` is still read and processed, + as are the standard defaults and pruning. But the manifest is built inside + the project's ``.egg-info`` directory as ``SOURCES.txt``, and it is rebuilt + every time the ``egg_info`` command is run. + + * Added the ``include_package_data`` keyword to ``setup()``, allowing you to + automatically include any package data listed in revision control or + ``MANIFEST.in`` + + * Added the ``exclude_package_data`` keyword to ``setup()``, allowing you to + trim back files included via the ``package_data`` and + ``include_package_data`` options. + + * Fixed ``--tag-svn-revision`` not working when run from a source + distribution. + + * Added warning for namespace packages with missing ``declare_namespace()`` + + * Added ``tests_require`` keyword to ``setup()``, so that e.g. packages + requiring ``nose`` to run unit tests can make this dependency optional + unless the ``test`` command is run. + + * Made all commands that use ``easy_install`` respect its configuration + options, as this was causing some problems with ``setup.py install``. + + * Added an ``unpack_directory()`` driver to ``setuptools.archive_util``, so + that you can process a directory tree through a processing filter as if it + were a zipfile or tarfile. + + * Added an internal ``install_egg_info`` command to use as part of old-style + ``install`` operations, that installs an ``.egg-info`` directory with the + package. + + * Added a ``--single-version-externally-managed`` option to the ``install`` + command so that you can more easily wrap a "flat" egg in a system package. + + * Enhanced ``bdist_rpm`` so that it installs single-version eggs that + don't rely on a ``.pth`` file. The ``--no-egg`` option has been removed, + since all RPMs are now built in a more backwards-compatible format. + + * Support full roundtrip translation of eggs to and from ``bdist_wininst`` + format. Running ``bdist_wininst`` on a setuptools-based package wraps the + egg in an .exe that will safely install it as an egg (i.e., with metadata + and entry-point wrapper scripts), and ``easy_install`` can turn the .exe + back into an ``.egg`` file or directory and install it as such. + + * Fixed ``.pth`` file processing picking up nested eggs (i.e. ones inside + "baskets") when they weren't explicitly listed in the ``.pth`` file. + + * If more than one URL appears to describe the exact same distribution, prefer + the shortest one. This helps to avoid "table of contents" CGI URLs like the + ones on effbot.org. + + * Quote arguments to python.exe (including python's path) to avoid problems + when Python (or a script) is installed in a directory whose name contains + spaces on Windows. + + * Support full roundtrip translation of eggs to and from ``bdist_wininst`` + format. Running ``bdist_wininst`` on a setuptools-based package wraps the + egg in an .exe that will safely install it as an egg (i.e., with metadata + and entry-point wrapper scripts), and ``easy_install`` can turn the .exe + back into an ``.egg`` file or directory and install it as such. + +0.6a8 +===== + + * Fixed some problems building extensions when Pyrex was installed, especially + with Python 2.4 and/or packages using SWIG. + + * Made ``develop`` command accept all the same options as ``easy_install``, + and use the ``easy_install`` command's configuration settings as defaults. + + * Made ``egg_info --tag-svn-revision`` fall back to extracting the revision + number from ``PKG-INFO`` in case it is being run on a source distribution of + a snapshot taken from a Subversion-based project. + + * Automatically detect ``.dll``, ``.so`` and ``.dylib`` files that are being + installed as data, adding them to ``native_libs.txt`` automatically. + + * Fixed some problems with fresh checkouts of projects that don't include + ``.egg-info/PKG-INFO`` under revision control and put the project's source + code directly in the project directory. If such a package had any + requirements that get processed before the ``egg_info`` command can be run, + the setup scripts would fail with a "Missing 'Version:' header and/or + PKG-INFO file" error, because the egg runtime interpreted the unbuilt + metadata in a directory on ``sys.path`` (i.e. the current directory) as + being a corrupted egg. Setuptools now monkeypatches the distribution + metadata cache to pretend that the egg has valid version information, until + it has a chance to make it actually be so (via the ``egg_info`` command). + + * Update for changed SourceForge mirror format + + * Fixed not installing dependencies for some packages fetched via Subversion + + * Fixed dependency installation with ``--always-copy`` not using the same + dependency resolution procedure as other operations. + + * Fixed not fully removing temporary directories on Windows, if a Subversion + checkout left read-only files behind + + * Fixed some problems building extensions when Pyrex was installed, especially + with Python 2.4 and/or packages using SWIG. + +0.6a7 +===== + + * Fixed not being able to install Windows script wrappers using Python 2.3 + +0.6a6 +===== + + * Added support for "traditional" PYTHONPATH-based non-root installation, and + also the convenient ``virtual-python.py`` script, based on a contribution + by Ian Bicking. The setuptools egg now contains a hacked ``site`` module + that makes the PYTHONPATH-based approach work with .pth files, so that you + can get the full EasyInstall feature set on such installations. + + * Added ``--no-deps`` and ``--allow-hosts`` options. + + * Improved Windows ``.exe`` script wrappers so that the script can have the + same name as a module without confusing Python. + + * Changed dependency processing so that it's breadth-first, allowing a + depender's preferences to override those of a dependee, to prevent conflicts + when a lower version is acceptable to the dependee, but not the depender. + Also, ensure that currently installed/selected packages aren't given + precedence over ones desired by a package being installed, which could + cause conflict errors. + +0.6a5 +===== + + * Fixed missing gui/cli .exe files in distribution. Fixed bugs in tests. + +0.6a3 +===== + + * Added ``gui_scripts`` entry point group to allow installing GUI scripts + on Windows and other platforms. (The special handling is only for Windows; + other platforms are treated the same as for ``console_scripts``.) + + * Improved error message when trying to use old ways of running + ``easy_install``. Removed the ability to run via ``python -m`` or by + running ``easy_install.py``; ``easy_install`` is the command to run on all + supported platforms. + + * Improved wrapper script generation and runtime initialization so that a + VersionConflict doesn't occur if you later install a competing version of a + needed package as the default version of that package. + + * Fixed a problem parsing version numbers in ``#egg=`` links. + +0.6a2 +===== + + * Added ``console_scripts`` entry point group to allow installing scripts + without the need to create separate script files. On Windows, console + scripts get an ``.exe`` wrapper so you can just type their name. On other + platforms, the scripts are written without a file extension. + + * EasyInstall can now install "console_scripts" defined by packages that use + ``setuptools`` and define appropriate entry points. On Windows, console + scripts get an ``.exe`` wrapper so you can just type their name. On other + platforms, the scripts are installed without a file extension. + + * Using ``python -m easy_install`` or running ``easy_install.py`` is now + DEPRECATED, since an ``easy_install`` wrapper is now available on all + platforms. + +0.6a1 +===== + + * Added support for building "old-style" RPMs that don't install an egg for + the target package, using a ``--no-egg`` option. + + * The ``build_ext`` command now works better when using the ``--inplace`` + option and multiple Python versions. It now makes sure that all extensions + match the current Python version, even if newer copies were built for a + different Python version. + + * The ``upload`` command no longer attaches an extra ``.zip`` when uploading + eggs, as PyPI now supports egg uploads without trickery. + + * The ``ez_setup`` script/module now displays a warning before downloading + the setuptools egg, and attempts to check the downloaded egg against an + internal MD5 checksum table. + + * Fixed the ``--tag-svn-revision`` option of ``egg_info`` not finding the + latest revision number; it was using the revision number of the directory + containing ``setup.py``, not the highest revision number in the project. + + * Added ``eager_resources`` setup argument + + * The ``sdist`` command now recognizes Subversion "deleted file" entries and + does not include them in source distributions. + + * ``setuptools`` now embeds itself more thoroughly into the distutils, so that + other distutils extensions (e.g. py2exe, py2app) will subclass setuptools' + versions of things, rather than the native distutils ones. + + * Added ``entry_points`` and ``setup_requires`` arguments to ``setup()``; + ``setup_requires`` allows you to automatically find and download packages + that are needed in order to *build* your project (as opposed to running it). + + * ``setuptools`` now finds its commands, ``setup()`` argument validators, and + metadata writers using entry points, so that they can be extended by + third-party packages. See `Creating distutils Extensions + `_ + for more details. + + * The vestigial ``depends`` command has been removed. It was never finished + or documented, and never would have worked without EasyInstall - which it + pre-dated and was never compatible with. + + * EasyInstall now does MD5 validation of downloads from PyPI, or from any link + that has an "#md5=..." trailer with a 32-digit lowercase hex md5 digest. + + * EasyInstall now handles symlinks in target directories by removing the link, + rather than attempting to overwrite the link's destination. This makes it + easier to set up an alternate Python "home" directory (as described in + the Non-Root Installation section of the docs). + + * Added support for handling MacOS platform information in ``.egg`` filenames, + based on a contribution by Kevin Dangoor. You may wish to delete and + reinstall any eggs whose filename includes "darwin" and "Power_Macintosh", + because the format for this platform information has changed so that minor + OS X upgrades (such as 10.4.1 to 10.4.2) do not cause eggs built with a + previous OS version to become obsolete. + + * easy_install's dependency processing algorithms have changed. When using + ``--always-copy``, it now ensures that dependencies are copied too. When + not using ``--always-copy``, it tries to use a single resolution loop, + rather than recursing. + + * Fixed installing extra ``.pyc`` or ``.pyo`` files for scripts with ``.py`` + extensions. + + * Added ``--site-dirs`` option to allow adding custom "site" directories. + Made ``easy-install.pth`` work in platform-specific alternate site + directories (e.g. ``~/Library/Python/2.x/site-packages`` on Mac OS X). + + * If you manually delete the current version of a package, the next run of + EasyInstall against the target directory will now remove the stray entry + from the ``easy-install.pth`` file. + + * EasyInstall now recognizes URLs with a ``#egg=project_name`` fragment ID + as pointing to the named project's source checkout. Such URLs have a lower + match precedence than any other kind of distribution, so they'll only be + used if they have a higher version number than any other available + distribution, or if you use the ``--editable`` option. The ``#egg`` + fragment can contain a version if it's formatted as ``#egg=proj-ver``, + where ``proj`` is the project name, and ``ver`` is the version number. You + *must* use the format for these values that the ``bdist_egg`` command uses; + i.e., all non-alphanumeric runs must be condensed to single underscore + characters. + + * Added the ``--editable`` option; see Editing and Viewing Source Packages + in the docs. Also, slightly changed the behavior of the + ``--build-directory`` option. + + * Fixed the setup script sandbox facility not recognizing certain paths as + valid on case-insensitive platforms. + +0.5a12 +====== + + * The zip-safety scanner now checks for modules that might be used with + ``python -m``, and marks them as unsafe for zipping, since Python 2.4 can't + handle ``-m`` on zipped modules. + + * Fix ``python -m easy_install`` not working due to setuptools being installed + as a zipfile. Update safety scanner to check for modules that might be used + as ``python -m`` scripts. + + * Misc. fixes for win32.exe support, including changes to support Python 2.4's + changed ``bdist_wininst`` format. + +0.5a11 +====== + + * Fix breakage of the "develop" command that was caused by the addition of + ``--always-unzip`` to the ``easy_install`` command. + +0.5a10 +====== + + * Put the ``easy_install`` module back in as a module, as it's needed for + ``python -m`` to run it! + + * Allow ``--find-links/-f`` to accept local directories or filenames as well + as URLs. + +0.5a9 +===== + + * Include ``svn:externals`` directories in source distributions as well as + normal subversion-controlled files and directories. + + * Added ``exclude=patternlist`` option to ``setuptools.find_packages()`` + + * Changed --tag-svn-revision to include an "r" in front of the revision number + for better readability. + + * Added ability to build eggs without including source files (except for any + scripts, of course), using the ``--exclude-source-files`` option to + ``bdist_egg``. + + * ``setup.py install`` now automatically detects when an "unmanaged" package + or module is going to be on ``sys.path`` ahead of a package being installed, + thereby preventing the newer version from being imported. If this occurs, + a warning message is output to ``sys.stderr``, but installation proceeds + anyway. The warning message informs the user what files or directories + need deleting, and advises them they can also use EasyInstall (with the + ``--delete-conflicting`` option) to do it automatically. + + * The ``egg_info`` command now adds a ``top_level.txt`` file to the metadata + directory that lists all top-level modules and packages in the distribution. + This is used by the ``easy_install`` command to find possibly-conflicting + "unmanaged" packages when installing the distribution. + + * Added ``zip_safe`` and ``namespace_packages`` arguments to ``setup()``. + Added package analysis to determine zip-safety if the ``zip_safe`` flag + is not given, and advise the author regarding what code might need changing. + + * Fixed the swapped ``-d`` and ``-b`` options of ``bdist_egg``. + + * EasyInstall now automatically detects when an "unmanaged" package or + module is going to be on ``sys.path`` ahead of a package you're installing, + thereby preventing the newer version from being imported. By default, it + will abort installation to alert you of the problem, but there are also + new options (``--delete-conflicting`` and ``--ignore-conflicts-at-my-risk``) + available to change the default behavior. (Note: this new feature doesn't + take effect for egg files that were built with older ``setuptools`` + versions, because they lack the new metadata file required to implement it.) + + * The ``easy_install`` distutils command now uses ``DistutilsError`` as its + base error type for errors that should just issue a message to stderr and + exit the program without a traceback. + + * EasyInstall can now be given a path to a directory containing a setup + script, and it will attempt to build and install the package there. + + * EasyInstall now performs a safety analysis on module contents to determine + whether a package is likely to run in zipped form, and displays + information about what modules may be doing introspection that would break + when running as a zipfile. + + * Added the ``--always-unzip/-Z`` option, to force unzipping of packages that + would ordinarily be considered safe to unzip, and changed the meaning of + ``--zip-ok/-z`` to "always leave everything zipped". + +0.5a8 +===== + + * The "egg_info" command now always sets the distribution metadata to "safe" + forms of the distribution name and version, so that distribution files will + be generated with parseable names (i.e., ones that don't include '-' in the + name or version). Also, this means that if you use the various ``--tag`` + options of "egg_info", any distributions generated will use the tags in the + version, not just egg distributions. + + * Added support for defining command aliases in distutils configuration files, + under the "[aliases]" section. To prevent recursion and to allow aliases to + call the command of the same name, a given alias can be expanded only once + per command-line invocation. You can define new aliases with the "alias" + command, either for the local, global, or per-user configuration. + + * Added "rotate" command to delete old distribution files, given a set of + patterns to match and the number of files to keep. (Keeps the most + recently-modified distribution files matching each pattern.) + + * Added "saveopts" command that saves all command-line options for the current + invocation to the local, global, or per-user configuration file. Useful for + setting defaults without having to hand-edit a configuration file. + + * Added a "setopt" command that sets a single option in a specified distutils + configuration file. + + * There is now a separate documentation page for setuptools; revision + history that's not specific to EasyInstall has been moved to that page. + +0.5a7 +===== + + * Added "upload" support for egg and source distributions, including a bug + fix for "upload" and a temporary workaround for lack of .egg support in + PyPI. + +0.5a6 +===== + + * Beefed up the "sdist" command so that if you don't have a MANIFEST.in, it + will include all files under revision control (CVS or Subversion) in the + current directory, and it will regenerate the list every time you create a + source distribution, not just when you tell it to. This should make the + default "do what you mean" more often than the distutils' default behavior + did, while still retaining the old behavior in the presence of MANIFEST.in. + + * Fixed the "develop" command always updating .pth files, even if you + specified ``-n`` or ``--dry-run``. + + * Slightly changed the format of the generated version when you use + ``--tag-build`` on the "egg_info" command, so that you can make tagged + revisions compare *lower* than the version specified in setup.py (e.g. by + using ``--tag-build=dev``). + +0.5a5 +===== + + * Added ``develop`` command to ``setuptools``-based packages. This command + installs an ``.egg-link`` pointing to the package's source directory, and + script wrappers that ``execfile()`` the source versions of the package's + scripts. This lets you put your development checkout(s) on sys.path without + having to actually install them. (To uninstall the link, use + use ``setup.py develop --uninstall``.) + + * Added ``egg_info`` command to ``setuptools``-based packages. This command + just creates or updates the "projectname.egg-info" directory, without + building an egg. (It's used by the ``bdist_egg``, ``test``, and ``develop`` + commands.) + + * Enhanced the ``test`` command so that it doesn't install the package, but + instead builds any C extensions in-place, updates the ``.egg-info`` + metadata, adds the source directory to ``sys.path``, and runs the tests + directly on the source. This avoids an "unmanaged" installation of the + package to ``site-packages`` or elsewhere. + + * Made ``easy_install`` a standard ``setuptools`` command, moving it from + the ``easy_install`` module to ``setuptools.command.easy_install``. Note + that if you were importing or extending it, you must now change your imports + accordingly. ``easy_install.py`` is still installed as a script, but not as + a module. + +0.5a4 +===== + + * Setup scripts using setuptools can now list their dependencies directly in + the setup.py file, without having to manually create a ``depends.txt`` file. + The ``install_requires`` and ``extras_require`` arguments to ``setup()`` + are used to create a dependencies file automatically. If you are manually + creating ``depends.txt`` right now, please switch to using these setup + arguments as soon as practical, because ``depends.txt`` support will be + removed in the 0.6 release cycle. For documentation on the new arguments, + see the ``setuptools.dist.Distribution`` class. + + * Setup scripts using setuptools now always install using ``easy_install`` + internally, for ease of uninstallation and upgrading. + + * Added ``--always-copy/-a`` option to always copy needed packages to the + installation directory, even if they're already present elsewhere on + sys.path. (In previous versions, this was the default behavior, but now + you must request it.) + + * Added ``--upgrade/-U`` option to force checking PyPI for latest available + version(s) of all packages requested by name and version, even if a matching + version is available locally. + + * Added automatic installation of dependencies declared by a distribution + being installed. These dependencies must be listed in the distribution's + ``EGG-INFO`` directory, so the distribution has to have declared its + dependencies by using setuptools. If a package has requirements it didn't + declare, you'll still have to deal with them yourself. (E.g., by asking + EasyInstall to find and install them.) + + * Added the ``--record`` option to ``easy_install`` for the benefit of tools + that run ``setup.py install --record=filename`` on behalf of another + packaging system.) + +0.5a3 +===== + + * Fixed not setting script permissions to allow execution. + + * Improved sandboxing so that setup scripts that want a temporary directory + (e.g. pychecker) can still run in the sandbox. + +0.5a2 +===== + + * Fix stupid stupid refactoring-at-the-last-minute typos. :( + +0.5a1 +===== + + * Added support for "self-installation" bootstrapping. Packages can now + include ``ez_setup.py`` in their source distribution, and add the following + to their ``setup.py``, in order to automatically bootstrap installation of + setuptools as part of their setup process:: + + from ez_setup import use_setuptools + use_setuptools() + + from setuptools import setup + # etc... + + * Added support for converting ``.win32.exe`` installers to eggs on the fly. + EasyInstall will now recognize such files by name and install them. + + * Fixed a problem with picking the "best" version to install (versions were + being sorted as strings, rather than as parsed values) + +0.4a4 +===== + + * Added support for the distutils "verbose/quiet" and "dry-run" options, as + well as the "optimize" flag. + + * Support downloading packages that were uploaded to PyPI (by scanning all + links on package pages, not just the homepage/download links). + +0.4a3 +===== + + * Add progress messages to the search/download process so that you can tell + what URLs it's reading to find download links. (Hopefully, this will help + people report out-of-date and broken links to package authors, and to tell + when they've asked for a package that doesn't exist.) + +0.4a2 +===== + + * Added ``ez_setup.py`` installer/bootstrap script to make initial setuptools + installation easier, and to allow distributions using setuptools to avoid + having to include setuptools in their source distribution. + + * All downloads are now managed by the ``PackageIndex`` class (which is now + subclassable and replaceable), so that embedders can more easily override + download logic, give download progress reports, etc. The class has also + been moved to the new ``setuptools.package_index`` module. + + * The ``Installer`` class no longer handles downloading, manages a temporary + directory, or tracks the ``zip_ok`` option. Downloading is now handled + by ``PackageIndex``, and ``Installer`` has become an ``easy_install`` + command class based on ``setuptools.Command``. + + * There is a new ``setuptools.sandbox.run_setup()`` API to invoke a setup + script in a directory sandbox, and a new ``setuptools.archive_util`` module + with an ``unpack_archive()`` API. These were split out of EasyInstall to + allow reuse by other tools and applications. + + * ``setuptools.Command`` now supports reinitializing commands using keyword + arguments to set/reset options. Also, ``Command`` subclasses can now set + their ``command_consumes_arguments`` attribute to ``True`` in order to + receive an ``args`` option containing the rest of the command line. + + * Added support for installing scripts + + * Added support for setting options via distutils configuration files, and + using distutils' default options as a basis for EasyInstall's defaults. + + * Renamed ``--scan-url/-s`` to ``--find-links/-f`` to free up ``-s`` for the + script installation directory option. + + * Use ``urllib2`` instead of ``urllib``, to allow use of ``https:`` URLs if + Python includes SSL support. + +0.4a1 +===== + + * Added ``--scan-url`` and ``--index-url`` options, to scan download pages + and search PyPI for needed packages. + +0.3a4 +===== + + * Restrict ``--build-directory=DIR/-b DIR`` option to only be used with single + URL installs, to avoid running the wrong setup.py. + +0.3a3 +===== + + * Added ``--build-directory=DIR/-b DIR`` option. + + * Added "installation report" that explains how to use 'require()' when doing + a multiversion install or alternate installation directory. + + * Added SourceForge mirror auto-select (Contributed by Ian Bicking) + + * Added "sandboxing" that stops a setup script from running if it attempts to + write to the filesystem outside of the build area + + * Added more workarounds for packages with quirky ``install_data`` hacks + +0.3a2 +===== + + * Added new options to ``bdist_egg`` to allow tagging the egg's version number + with a subversion revision number, the current date, or an explicit tag + value. Run ``setup.py bdist_egg --help`` to get more information. + + * Added subversion download support for ``svn:`` and ``svn+`` URLs, as well as + automatic recognition of HTTP subversion URLs (Contributed by Ian Bicking) + + * Misc. bug fixes + +0.3a1 +===== + + * Initial release. + diff --git a/README.rst b/README.rst new file mode 100644 index 0000000000..d677b70387 --- /dev/null +++ b/README.rst @@ -0,0 +1,58 @@ +.. |pypi-version| image:: https://img.shields.io/pypi/v/setuptools.svg + :target: https://pypi.org/project/setuptools + +.. |py-version| image:: https://img.shields.io/pypi/pyversions/setuptools.svg + +.. |test-badge| image:: https://github.com/pypa/setuptools/actions/workflows/main.yml/badge.svg + :target: https://github.com/pypa/setuptools/actions?query=workflow%3A%22tests%22 + :alt: tests + +.. |ruff-badge| image:: https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/charliermarsh/ruff/main/assets/badge/v2.json + :target: https://github.com/astral-sh/ruff + :alt: Ruff + +.. |docs-badge| image:: https://img.shields.io/readthedocs/setuptools/latest.svg + :target: https://setuptools.pypa.io + +.. |skeleton-badge| image:: https://img.shields.io/badge/skeleton-2025-informational + :target: https://blog.jaraco.com/skeleton + +.. |codecov-badge| image:: https://img.shields.io/codecov/c/github/pypa/setuptools/master.svg?logo=codecov&logoColor=white + :target: https://codecov.io/gh/pypa/setuptools + +.. |tidelift-badge| image:: https://tidelift.com/badges/github/pypa/setuptools?style=flat + :target: https://tidelift.com/subscription/pkg/pypi-setuptools?utm_source=pypi-setuptools&utm_medium=readme + +.. |discord-badge| image:: https://img.shields.io/discord/803025117553754132 + :target: https://discord.com/channels/803025117553754132/815945031150993468 + :alt: Discord + +|pypi-version| |py-version| |test-badge| |ruff-badge| |docs-badge| |skeleton-badge| |codecov-badge| |discord-badge| + +See the `Quickstart `_ +and the `User's Guide `_ for +instructions on how to use Setuptools. + +Questions and comments should be directed to `GitHub Discussions +`_. +Bug reports and especially tested patches may be +submitted directly to the `bug tracker +`_. + + +Code of Conduct +=============== + +Everyone interacting in the setuptools project's codebases, issue trackers, +chat rooms, and fora is expected to follow the +`PSF Code of Conduct `_. + + +For Enterprise +============== + +Available as part of the Tidelift Subscription. + +Setuptools and the maintainers of thousands of other packages are working with Tidelift to deliver one enterprise subscription that covers all of the open source you use. + +`Learn more `_. diff --git a/README.txt b/README.txt deleted file mode 100755 index ce8d641385..0000000000 --- a/README.txt +++ /dev/null @@ -1,202 +0,0 @@ -=============================== -Installing and Using Distribute -=============================== - -.. contents:: **Table of Contents** - ------------ -Disclaimers ------------ - -About the fork -============== - -`Distribute` is a friendly fork of the `Setuptools` project. The `Setuptools` -maintainer, Phillip J. Eby is not responsible of any aspect of this fork. - -If you install `Distribute` and want to switch back for any reason to -`Setuptools`, get to the `Uninstallation instructions`_ section. - -About the installation process -============================== - -The `Distribute` installer modifies your installation by de-activating an -existing installation of `Setuptools` in a bootstrap process. This process -has been tested in various installation schemes and contexts but in case of a -bug during this process your Python installation might be left in a broken -state. Since all modified files and directories are copied before the -installation, you will be able to get back to a normal state by reading -the instructions in the `Uninstallation instructions`_ section. - -In any case, it is recommended to save you `site-packages` directory before -you start the installation of `Distribute`. - -------------------------- -Installation Instructions -------------------------- - -Distribute comes in two flavors: in eggs or as a source distribution. Archives -are available at the PyPI page. - -It can be installed using easy_install or pip, with the source tarball, with the -eggs distribution, or using the ``distribute_setup.py`` script provided online. - -``distribute_setup.py`` is the simplest and preferred way on all systems. - -distribute_setup.py -=================== - -Download ``distribute_setup.py`` and execute it, using the Python interpreter of -your choice. - -If your shell has the `wget` program you can do:: - - $ wget http://nightly.ziade.org/distribute_setup.py - $ python distribute_setup.py - -easy_install or pip -=================== - -Run easy_install or pip:: - - $ easy_install Distribute - $ pip install Distribute - -Source installation -=================== - -Download the source tarball, and uncompress it, then run the install command:: - - $ wget http://pypi.python.org/packages/source/d/distribute/distribute-0.6.tar.gz - $ tar -xzvf distribute-0.6.tar.gz - $ cd distribute-0.6 - $ python setup.py install - -Egg installation -================ - -An Egg is a zip file with a `sh` script inserted in its head so it can be -`executed` in the shell. - -Cygwin, Linux anc Mac OS/X --------------------------- - -1. Download the appropriate egg for your version of Python (e.g. - ``distribute-0.6-py2.4.egg``). Do NOT rename it. - -2. Run it as if it were a shell script, e.g. ``sh distribute-0.6-py2.4.egg``. - Distutils will install itself using the matching version of Python (e.g. - ``python2.4``), and will place the ``easy_install`` executable in the - default location for installing Python scripts (as determined by the - standard distutils configuration files, or by the Python installation). - -If you want to install distribute to somewhere other than ``site-packages`` or -your default distutils installation locations for libraries and scripts, you -may include EasyInstall command-line options such as ``--prefix``, -``--install-dir``, and so on, following the ``.egg`` filename on the same -command line. For example:: - - sh distribute-0.6-py2.4.egg --prefix=~ - -Cygwin Note ------------ - -If you are trying to install Distribute for the **Windows** version of Python -(as opposed to the Cygwin version that lives in ``/usr/bin``), you must make -sure that an appropriate executable (``python2.3``, ``python2.4``, or -``python2.5``) is on your **Cygwin** ``PATH`` when invoking the egg. For -example, doing the following at a Cygwin bash prompt will install Distribute -for the **Windows** Python found at ``C:\\Python24``:: - - ln -s /cygdrive/c/Python24/python.exe python2.4 - PATH=.:$PATH sh distribute-0.6-py2.4.egg - rm python2.4 - -Windows -------- - -Don't install Distribute trying to execute the egg, because it's aimed to -sh-based shells. Instead, use the ``distribute_setup.py`` method, that will -download the egg for you, then install the egg. - ---------------------------- -Uninstallation Instructions ---------------------------- - -Like other distutils-based distributions, Distribute doesn't provide an -uninstaller yet. It's all manual ! - -Distribute is installed in three steps: - -1- it gets out of the way an existing installation of Setuptools -2- it installs a `fake` setuptools installation -3- it installs distribute - -Distribute can be removed like this: - -- run `easy_install -m Distribute`. This will remove the Distribute reference - from `easy-install.pth` *or* edit the file and remove it yourself. -- remove the distribute*.egg file located in your site-packages directory -- remove the setuptools.pth file located in you site-packages directory -- remove the easy_install script located in you sys.prefix/bin directory -- remove the setuptools*.egg directory located in your site-packages directory - if any. - -If you want to get back to setuptools: - -- reinstall setuptools using its instruction. - -Last: - -- remove the *.OLD.* directory located in your site-packages directory if any, - **once you have checked everything was working correctly again**. - ------------ -Install FAQ ------------ - -- **Why Distribute turn my Setuptools installation into an fake one ?** - - Since Distribute is a fork, and since it provides the same package and modules, - it fakes that the Setuptools installation is still present, so all the programs - that where using Setuptools still work. - - If it wasn't doing it, a program that would try to install Setuptools - would overwrite in turn Distribute. - -- **How does Distribute interacts with virtualenv ?** - - Everytime you create a virtualenv it will install setuptools, so you need to - re-install Distribute in it right after. The Distribute project will not - attempt to patch virtualenv so it uses it when globally installed. - - Once installed, your virtualenv will use Distribute transparently. - - Although, if you have Setuptools installed in your system-wide Python, - and if the virtualenv you are in was generated without the `--no-site-packages` - option, the Distribute installation will stop. - - You need in this case to build a virtualenv with the --no-site-packages option - or to install `Distribute` globally. - -- **How does in interacts with zc.buildout ?** - - Like virtualenv, Distribute has to be installed after setuptools. The simplest - way is to add it in a `zc.recipe.egg` section so the job is done when you - build your buildout. - - If you are combining zc.buildout and virtualenv, you might fail in the - problem described in the previous FAQ entry. - - Last, you will need to use the provided special `bootstrap.py` file, - located in the buildout directory. - -------- -Credits -------- - -* Tarek Ziadé -* Hanno Schlichting -* Many other people that helped on Distutils-SIG (please add your name here) -* Phillip Eby for the Setuptools project. - diff --git a/SECURITY.md b/SECURITY.md new file mode 100644 index 0000000000..54f99acbfa --- /dev/null +++ b/SECURITY.md @@ -0,0 +1,3 @@ +# Security Contact + +To report a security vulnerability, please use the [Tidelift security contact](https://tidelift.com/security). Tidelift will coordinate the fix and disclosure. diff --git a/_distutils_hack/__init__.py b/_distutils_hack/__init__.py new file mode 100644 index 0000000000..94f71b99ec --- /dev/null +++ b/_distutils_hack/__init__.py @@ -0,0 +1,239 @@ +# don't import any costly modules +import os +import sys + +report_url = ( + "https://github.com/pypa/setuptools/issues/new?template=distutils-deprecation.yml" +) + + +def warn_distutils_present(): + if 'distutils' not in sys.modules: + return + import warnings + + warnings.warn( + "Distutils was imported before Setuptools, but importing Setuptools " + "also replaces the `distutils` module in `sys.modules`. This may lead " + "to undesirable behaviors or errors. To avoid these issues, avoid " + "using distutils directly, ensure that setuptools is installed in the " + "traditional way (e.g. not an editable install), and/or make sure " + "that setuptools is always imported before distutils." + ) + + +def clear_distutils(): + if 'distutils' not in sys.modules: + return + import warnings + + warnings.warn( + "Setuptools is replacing distutils. Support for replacing " + "an already imported distutils is deprecated. In the future, " + "this condition will fail. " + f"Register concerns at {report_url}" + ) + mods = [ + name + for name in sys.modules + if name == "distutils" or name.startswith("distutils.") + ] + for name in mods: + del sys.modules[name] + + +def enabled(): + """ + Allow selection of distutils by environment variable. + """ + which = os.environ.get('SETUPTOOLS_USE_DISTUTILS', 'local') + if which == 'stdlib': + import warnings + + warnings.warn( + "Reliance on distutils from stdlib is deprecated. Users " + "must rely on setuptools to provide the distutils module. " + "Avoid importing distutils or import setuptools first, " + "and avoid setting SETUPTOOLS_USE_DISTUTILS=stdlib. " + f"Register concerns at {report_url}" + ) + return which == 'local' + + +def ensure_local_distutils(): + import importlib + + clear_distutils() + + # With the DistutilsMetaFinder in place, + # perform an import to cause distutils to be + # loaded from setuptools._distutils. Ref #2906. + with shim(): + importlib.import_module('distutils') + + # check that submodules load as expected + core = importlib.import_module('distutils.core') + assert '_distutils' in core.__file__, core.__file__ + assert 'setuptools._distutils.log' not in sys.modules + + +def do_override(): + """ + Ensure that the local copy of distutils is preferred over stdlib. + + See https://github.com/pypa/setuptools/issues/417#issuecomment-392298401 + for more motivation. + """ + if enabled(): + warn_distutils_present() + ensure_local_distutils() + + +class _TrivialRe: + def __init__(self, *patterns) -> None: + self._patterns = patterns + + def match(self, string): + return all(pat in string for pat in self._patterns) + + +class DistutilsMetaFinder: + def find_spec(self, fullname, path, target=None): + # optimization: only consider top level modules and those + # found in the CPython test suite. + if path is not None and not fullname.startswith('test.'): + return None + + method_name = 'spec_for_{fullname}'.format(**locals()) + method = getattr(self, method_name, lambda: None) + return method() + + def spec_for_distutils(self): + if self.is_cpython(): + return None + + import importlib + import importlib.abc + import importlib.util + + try: + mod = importlib.import_module('setuptools._distutils') + except Exception: + # There are a couple of cases where setuptools._distutils + # may not be present: + # - An older Setuptools without a local distutils is + # taking precedence. Ref #2957. + # - Path manipulation during sitecustomize removes + # setuptools from the path but only after the hook + # has been loaded. Ref #2980. + # In either case, fall back to stdlib behavior. + return None + + class DistutilsLoader(importlib.abc.Loader): + def create_module(self, spec): + mod.__name__ = 'distutils' + return mod + + def exec_module(self, module): + pass + + return importlib.util.spec_from_loader( + 'distutils', DistutilsLoader(), origin=mod.__file__ + ) + + @staticmethod + def is_cpython(): + """ + Suppress supplying distutils for CPython (build and tests). + Ref #2965 and #3007. + """ + return os.path.isfile('pybuilddir.txt') + + def spec_for_pip(self): + """ + Ensure stdlib distutils when running under pip. + See pypa/pip#8761 for rationale. + """ + if sys.version_info >= (3, 12) or self.pip_imported_during_build(): + return + clear_distutils() + self.spec_for_distutils = lambda: None + + @classmethod + def pip_imported_during_build(cls): + """ + Detect if pip is being imported in a build script. Ref #2355. + """ + import traceback + + return any( + cls.frame_file_is_setup(frame) for frame, line in traceback.walk_stack(None) + ) + + @staticmethod + def frame_file_is_setup(frame): + """ + Return True if the indicated frame suggests a setup.py file. + """ + # some frames may not have __file__ (#2940) + return frame.f_globals.get('__file__', '').endswith('setup.py') + + def spec_for_sensitive_tests(self): + """ + Ensure stdlib distutils when running select tests under CPython. + + python/cpython#91169 + """ + clear_distutils() + self.spec_for_distutils = lambda: None + + sensitive_tests = ( + [ + 'test.test_distutils', + 'test.test_peg_generator', + 'test.test_importlib', + ] + if sys.version_info < (3, 10) + else [ + 'test.test_distutils', + ] + ) + + +for name in DistutilsMetaFinder.sensitive_tests: + setattr( + DistutilsMetaFinder, + f'spec_for_{name}', + DistutilsMetaFinder.spec_for_sensitive_tests, + ) + + +DISTUTILS_FINDER = DistutilsMetaFinder() + + +def add_shim(): + DISTUTILS_FINDER in sys.meta_path or insert_shim() + + +class shim: + def __enter__(self) -> None: + insert_shim() + + def __exit__(self, exc: object, value: object, tb: object) -> None: + _remove_shim() + + +def insert_shim(): + sys.meta_path.insert(0, DISTUTILS_FINDER) + + +def _remove_shim(): + try: + sys.meta_path.remove(DISTUTILS_FINDER) + except ValueError: + pass + + +if sys.version_info < (3, 12): + # DistutilsMetaFinder can only be disabled in Python < 3.12 (PEP 632) + remove_shim = _remove_shim diff --git a/_distutils_hack/override.py b/_distutils_hack/override.py new file mode 100644 index 0000000000..2cc433a4a5 --- /dev/null +++ b/_distutils_hack/override.py @@ -0,0 +1 @@ +__import__('_distutils_hack').do_override() diff --git a/bootstrap.egg-info/PKG-INFO b/bootstrap.egg-info/PKG-INFO new file mode 100644 index 0000000000..6e11ceeb9b --- /dev/null +++ b/bootstrap.egg-info/PKG-INFO @@ -0,0 +1,2 @@ +Name: setuptools-bootstrap +Version: 1.0 diff --git a/bootstrap.egg-info/entry_points.txt b/bootstrap.egg-info/entry_points.txt new file mode 100644 index 0000000000..a21ca22709 --- /dev/null +++ b/bootstrap.egg-info/entry_points.txt @@ -0,0 +1,19 @@ +[distutils.commands] +egg_info = setuptools.command.egg_info:egg_info +build_py = setuptools.command.build_py:build_py +sdist = setuptools.command.sdist:sdist +editable_wheel = setuptools.command.editable_wheel:editable_wheel + +[distutils.setup_keywords] +include_package_data = setuptools.dist:assert_bool +install_requires = setuptools.dist:check_requirements +extras_require = setuptools.dist:check_extras +entry_points = setuptools.dist:check_entry_points +exclude_package_data = setuptools.dist:check_package_data +namespace_packages = setuptools.dist:check_nsp + +[egg_info.writers] +PKG-INFO = setuptools.command.egg_info:write_pkg_info +dependency_links.txt = setuptools.command.egg_info:overwrite_arg +entry_points.txt = setuptools.command.egg_info:write_entries +requires.txt = setuptools.command.egg_info:write_requirements diff --git a/buildout/bootstrap.py b/buildout/bootstrap.py deleted file mode 100644 index d1e6938107..0000000000 --- a/buildout/bootstrap.py +++ /dev/null @@ -1,228 +0,0 @@ -############################################################################## -# -# Copyright (c) 2006 Zope Corporation and Contributors. -# All Rights Reserved. -# -# This software is subject to the provisions of the Zope Public License, -# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution. -# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED -# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED -# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS -# FOR A PARTICULAR PURPOSE. -# -############################################################################## -"""Bootstrap a buildout-based project - -Simply run this script in a directory containing a buildout.cfg. -The script accepts buildout command-line options, so you can -use the -c option to specify an alternate configuration file. - -$Id$ -""" - -import os, shutil, sys, tempfile, urllib2 - -tmpeggs = tempfile.mkdtemp() - -is_jython = sys.platform.startswith('java') - -to_reload = False -try: - import pkg_resources - if not hasattr(pkg_resources, '_distribute'): - to_reload = True - raise ImportError -except ImportError: - ez = {} - exec urllib2.urlopen('http://nightly.ziade.org/distribute_setup.py' - ).read() in ez - ez['use_setuptools'](to_dir=tmpeggs, download_delay=0) - if to_reload: - reload(pkg_resources) - else: - import pkg_resources - -if sys.platform == 'win32': - def quote(c): - if ' ' in c: - return '"%s"' % c # work around spawn lamosity on windows - else: - return c -else: - def quote (c): - return c - -cmd = 'from setuptools.command.easy_install import main; main()' -ws = pkg_resources.working_set - -if len(sys.argv) > 2 and sys.argv[1] == '--version': - VERSION = '==%s' % sys.argv[2] - args = sys.argv[3:] + ['bootstrap'] -else: - VERSION = '' - args = sys.argv[1:] + ['bootstrap'] - -if is_jython: - import subprocess - - assert subprocess.Popen([sys.executable] + ['-c', quote(cmd), '-mqNxd', - quote(tmpeggs), 'zc.buildout' + VERSION], - env=dict(os.environ, - PYTHONPATH= - ws.find(pkg_resources.Requirement.parse('setuptools')).location - ), - ).wait() == 0 - assert subprocess.Popen([sys.executable] + ['-c', quote(cmd), '-mqNxd', - quote(tmpeggs), 'zc.buildout' + VERSION], - env=dict(os.environ, - PYTHONPATH= - ws.find(pkg_resources.Requirement.parse('distribute')).location - ), - ).wait() == 0 - -else: - assert os.spawnle( - os.P_WAIT, sys.executable, quote (sys.executable), - '-c', quote (cmd), '-mqNxd', quote (tmpeggs), 'zc.buildout' + VERSION, - dict(os.environ, - PYTHONPATH= - ws.find(pkg_resources.Requirement.parse('setuptools')).location - ), - ) == 0 - assert os.spawnle( - os.P_WAIT, sys.executable, quote (sys.executable), - '-c', quote (cmd), '-mqNxd', quote (tmpeggs), 'zc.buildout' + VERSION, - dict(os.environ, - PYTHONPATH= - ws.find(pkg_resources.Requirement.parse('distribute')).location - ), - ) == 0 - -ws.add_entry(tmpeggs) -ws.require('zc.buildout' + VERSION) - -# patching zc.buildout.buildout so it uses distribute -from zc.buildout import buildout as zc_buildout -import zc.buildout -import pkg_resources - -def _bootstrap(self, args): - import pkg_resources - __doing__ = 'Bootstraping.' - self._setup_directories() - # Now copy buildout, distribute and setuptools eggs, and record destination eggs: - entries = [] - for name in 'setuptools', 'distribute', 'zc.buildout': - r = pkg_resources.Requirement.parse(name) - dist = pkg_resources.working_set.find(r) - if dist.precedence == pkg_resources.DEVELOP_DIST: - dest = os.path.join(self['buildout']['develop-eggs-directory'], - name+'.egg-link') - open(dest, 'w').write(dist.location) - entries.append(dist.location) - else: - dest = os.path.join(self['buildout']['eggs-directory'], - os.path.basename(dist.location)) - entries.append(dest) - if not os.path.exists(dest): - if os.path.isdir(dist.location): - shutil.copytree(dist.location, dest) - else: - shutil.copy2(dist.location, dest) - - # Create buildout script - ws = pkg_resources.WorkingSet(entries) - ws.require('zc.buildout') - zc.buildout.easy_install.scripts( - ['zc.buildout'], ws, sys.executable, - self['buildout']['bin-directory']) - -zc_buildout.Buildout.bootstrap = _bootstrap - -zc_buildout.pkg_resources_loc = pkg_resources.working_set.find( - pkg_resources.Requirement.parse('setuptools')).location - -realpath = zc.buildout.easy_install.realpath - -def _maybe_upgrade(self): - __doing__ = 'Checking for upgrades.' - if not self.newest: - return - ws = zc.buildout.easy_install.install( - [ - (spec + ' ' + self['buildout'].get(spec+'-version', '')).strip() - for spec in ('zc.buildout', 'setuptools') - ], - self['buildout']['eggs-directory'], - links = self['buildout'].get('find-links', '').split(), - index = self['buildout'].get('index'), - path = [self['buildout']['develop-eggs-directory']], - allow_hosts = self._allow_hosts - ) - - upgraded = [] - for project in 'zc.buildout', 'distribute': - req = pkg_resources.Requirement.parse(project) - if ws.find(req) != pkg_resources.working_set.find(req): - upgraded.append(ws.find(req)) - - if not upgraded: - return - - __doing__ = 'Upgrading.' - - should_run = realpath( - os.path.join(os.path.abspath(self['buildout']['bin-directory']), - 'buildout') - ) - if sys.platform == 'win32': - should_run += '-script.py' - - if (realpath(os.path.abspath(sys.argv[0])) != should_run): - self._logger.debug("Running %r.", realpath(sys.argv[0])) - self._logger.debug("Local buildout is %r.", should_run) - self._logger.warn("Not upgrading because not running a local " - "buildout command.") - return - - if sys.platform == 'win32' and not self.__windows_restart: - args = map(zc.buildout.easy_install._safe_arg, sys.argv) - args.insert(1, '-W') - if not __debug__: - args.insert(0, '-O') - args.insert(0, zc.buildout.easy_install._safe_arg (sys.executable)) - os.execv(sys.executable, args) - - self._logger.info("Upgraded:\n %s;\nrestarting.", - ",\n ".join([("%s version %s" - % (dist.project_name, dist.version) - ) - for dist in upgraded - ] - ), - ) - - # the new dist is different, so we've upgraded. - # Update the scripts and return True - zc.buildout.easy_install.scripts( - ['zc.buildout'], ws, sys.executable, - self['buildout']['bin-directory'], - ) - - # Restart - args = map(zc.buildout.easy_install._safe_arg, sys.argv) - if not __debug__: - args.insert(0, '-O') - args.insert(0, zc.buildout.easy_install._safe_arg (sys.executable)) - - if is_jython: - sys.exit(subprocess.Popen([sys.executable] + list(args)).wait()) - else: - sys.exit(os.spawnv(os.P_WAIT, sys.executable, args)) - -zc_buildout.Buildout._maybe_upgrade = _maybe_upgrade - -# now calling the bootstrap process as usual -zc_buildout.main(args) -shutil.rmtree(tmpeggs) - diff --git a/conftest.py b/conftest.py new file mode 100644 index 0000000000..0807a8d3d0 --- /dev/null +++ b/conftest.py @@ -0,0 +1,76 @@ +import platform +import sys + +import pytest + +pytest_plugins = 'setuptools.tests.fixtures' + + +def pytest_addoption(parser): + parser.addoption( + "--package_name", + action="append", + default=[], + help="list of package_name to pass to test functions", + ) + parser.addoption( + "--integration", + action="store_true", + default=False, + help="run integration tests (only)", + ) + + +def pytest_configure(config): + config.addinivalue_line("markers", "integration: integration tests") + config.addinivalue_line("markers", "uses_network: tests may try to download files") + _IntegrationTestSpeedups.disable_plugins_already_run(config) + + +collect_ignore = [ + 'tests/manual_test.py', + 'setuptools/tests/mod_with_constant.py', + 'setuptools/_distutils', + '_distutils_hack', + 'pkg_resources/tests/data', + 'setuptools/_vendor', + 'setuptools/config/_validate_pyproject', + 'setuptools/modified.py', + 'setuptools/tests/bdist_wheel_testdata', +] + + +if sys.version_info < (3, 9) or sys.platform == 'cygwin': + collect_ignore.append('tools/finalize.py') + + +@pytest.fixture(autouse=True) +def _skip_integration(request): + _IntegrationTestSpeedups.conditional_skip(request) + + +class _IntegrationTestSpeedups: + """Speed-up integration tests by only running what does not run in other tests.""" + + RUNS_ON_NORMAL_TESTS = ("checkdocks", "cov", "mypy", "perf", "ruff") + + @classmethod + def disable_plugins_already_run(cls, config): + if config.getoption("--integration"): + for plugin in cls.RUNS_ON_NORMAL_TESTS: # no need to run again + config.pluginmanager.set_blocked(plugin) + + @staticmethod + def conditional_skip(request): + running_integration_tests = request.config.getoption("--integration") + is_integration_test = request.node.get_closest_marker("integration") + if running_integration_tests and not is_integration_test: + pytest.skip("running integration tests only") + if not running_integration_tests and is_integration_test: + pytest.skip("skipping integration tests") + + +@pytest.fixture +def windows_only(): + if platform.system() != 'Windows': + pytest.skip("Windows only") diff --git a/distribute.egg-info/entry_points.txt b/distribute.egg-info/entry_points.txt deleted file mode 100644 index d69118d9ae..0000000000 --- a/distribute.egg-info/entry_points.txt +++ /dev/null @@ -1,56 +0,0 @@ -[distutils.commands] -bdist_rpm = setuptools.command.bdist_rpm:bdist_rpm -rotate = setuptools.command.rotate:rotate -develop = setuptools.command.develop:develop -setopt = setuptools.command.setopt:setopt -build_py = setuptools.command.build_py:build_py -saveopts = setuptools.command.saveopts:saveopts -egg_info = setuptools.command.egg_info:egg_info -register = setuptools.command.register:register -install_egg_info = setuptools.command.install_egg_info:install_egg_info -alias = setuptools.command.alias:alias -easy_install = setuptools.command.easy_install:easy_install -install_scripts = setuptools.command.install_scripts:install_scripts -bdist_wininst = setuptools.command.bdist_wininst:bdist_wininst -bdist_egg = setuptools.command.bdist_egg:bdist_egg -install = setuptools.command.install:install -test = setuptools.command.test:test -install_lib = setuptools.command.install_lib:install_lib -build_ext = setuptools.command.build_ext:build_ext -sdist = setuptools.command.sdist:sdist - -[egg_info.writers] -dependency_links.txt = setuptools.command.egg_info:overwrite_arg -requires.txt = setuptools.command.egg_info:write_requirements -PKG-INFO = setuptools.command.egg_info:write_pkg_info -eager_resources.txt = setuptools.command.egg_info:overwrite_arg -top_level.txt = setuptools.command.egg_info:write_toplevel_names -namespace_packages.txt = setuptools.command.egg_info:overwrite_arg -entry_points.txt = setuptools.command.egg_info:write_entries -depends.txt = setuptools.command.egg_info:warn_depends_obsolete - -[console_scripts] -easy_install = setuptools.command.easy_install:main -easy_install-2.6 = setuptools.command.easy_install:main - -[setuptools.file_finders] -svn_cvs = setuptools.command.sdist:_default_revctrl - -[distutils.setup_keywords] -dependency_links = setuptools.dist:assert_string_list -entry_points = setuptools.dist:check_entry_points -extras_require = setuptools.dist:check_extras -package_data = setuptools.dist:check_package_data -install_requires = setuptools.dist:check_requirements -include_package_data = setuptools.dist:assert_bool -exclude_package_data = setuptools.dist:check_package_data -namespace_packages = setuptools.dist:check_nsp -test_suite = setuptools.dist:check_test_suite -eager_resources = setuptools.dist:assert_string_list -zip_safe = setuptools.dist:assert_bool -test_loader = setuptools.dist:check_importable -tests_require = setuptools.dist:check_requirements - -[setuptools.installation] -eggsecutable = setuptools.command.easy_install:bootstrap - diff --git a/distribute_setup.py b/distribute_setup.py deleted file mode 100644 index 645098d72d..0000000000 --- a/distribute_setup.py +++ /dev/null @@ -1,430 +0,0 @@ -#!python -"""Bootstrap distribute installation - -If you want to use setuptools in your package's setup.py, just include this -file in the same directory with it, and add this to the top of your setup.py:: - - from distribute_setup import use_setuptools - use_setuptools() - -If you want to require a specific version of setuptools, set a download -mirror, or use an alternate download directory, you can do so by supplying -the appropriate options to ``use_setuptools()``. - -This file can also be run as a script to install or upgrade setuptools. -""" -import sys -import os -import shutil -import time -import fnmatch -from distutils import log -from distutils.errors import DistutilsError - -is_jython = sys.platform.startswith('java') -if is_jython: - import subprocess - -try: - from hashlib import md5 -except ImportError: - from md5 import md5 - -DEFAULT_VERSION = "0.6" -DEFAULT_URL = "http://pypi.python.org/packages/%s/d/distribute/" % sys.version[:3] - -md5_data = { - 'distribute-0.6-py2.3.egg': '66d06db7fc91227585f81b0b27b07bab', - 'distribute-0.6-py2.4.egg': '8fc3eb887ee98c506c38838955f9eee2', - 'distribute-0.6-py2.5.egg': 'd87f6492c53d192c62e0334859d18b59', - 'distribute-0.6-py2.6.egg': '89c46c2ed0c756dd278acc1482aa12f1', -} - -def _validate_md5(egg_name, data): - if egg_name in md5_data: - digest = md5(data).hexdigest() - if digest != md5_data[egg_name]: - print >>sys.stderr, ( - "md5 validation of %s failed! (Possible download problem?)" - % egg_name - ) - sys.exit(2) - return data - -def use_setuptools( - version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir, - download_delay=15 -): - """Automatically find/download setuptools and make it available on sys.path - - `version` should be a valid setuptools version number that is available - as an egg for download under the `download_base` URL (which should end with - a '/'). `to_dir` is the directory where setuptools will be downloaded, if - it is not already available. If `download_delay` is specified, it should - be the number of seconds that will be paused before initiating a download, - should one be required. If an older version of setuptools is installed, - this routine will print a message to ``sys.stderr`` and raise SystemExit in - an attempt to abort the calling script. - """ - was_imported = 'pkg_resources' in sys.modules or 'setuptools' in sys.modules - def do_download(): - egg = download_setuptools(version, download_base, to_dir, download_delay) - sys.path.insert(0, egg) - import setuptools; setuptools.bootstrap_install_from = egg - try: - import pkg_resources - if not hasattr(pkg_resources, '_distribute'): - raise ImportError - except ImportError: - return do_download() - try: - pkg_resources.require("distribute>="+version); return - except pkg_resources.VersionConflict, e: - if was_imported: - print >>sys.stderr, ( - "The required version of distribute (>=%s) is not available, and\n" - "can't be installed while this script is running. Please install\n" - " a more recent version first, using 'easy_install -U distribute'." - "\n\n(Currently using %r)" - ) % (version, e.args[0]) - sys.exit(2) - else: - del pkg_resources, sys.modules['pkg_resources'] # reload ok - return do_download() - except pkg_resources.DistributionNotFound: - return do_download() - -def download_setuptools( - version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir, - delay = 15 -): - """Download distribute from a specified location and return its filename - - `version` should be a valid distribute version number that is available - as an egg for download under the `download_base` URL (which should end - with a '/'). `to_dir` is the directory where the egg will be downloaded. - `delay` is the number of seconds to pause before an actual download attempt. - """ - import urllib2, shutil - egg_name = "distribute-%s-py%s.egg" % (version,sys.version[:3]) - url = download_base + egg_name - saveto = os.path.join(to_dir, egg_name) - src = dst = None - if not os.path.exists(saveto): # Avoid repeated downloads - try: - from distutils import log - if delay: - log.warn(""" ---------------------------------------------------------------------------- -This script requires distribute version %s to run (even to display -help). I will attempt to download it for you (from -%s), but -you may need to enable firewall access for this script first. -I will start the download in %d seconds. - -(Note: if this machine does not have network access, please obtain the file - - %s - -and place it in this directory before rerunning this script.) ----------------------------------------------------------------------------""", - version, download_base, delay, url - ); from time import sleep; sleep(delay) - log.warn("Downloading %s", url) - src = urllib2.urlopen(url) - # Read/write all in one block, so we don't create a corrupt file - # if the download is interrupted. - data = _validate_md5(egg_name, src.read()) - dst = open(saveto,"wb"); dst.write(data) - finally: - if src: src.close() - if dst: dst.close() - return os.path.realpath(saveto) - - -SETUPTOOLS_PKG_INFO = """\ -Metadata-Version: 1.0 -Name: setuptools -Version: 0.6c9 -Summary: xxxx -Home-page: xxx -Author: xxx -Author-email: xxx -License: xxx -Description: xxx -""" - -def _patch_file(path, content): - """Will backup the file then patch it""" - existing_content = open(path).read() - if existing_content == content: - # already patched - log.warn('Already patched.') - return False - log.warn('Patching...') - os.rename(path, path +'.OLD.%s' % time.time()) - f = open(path, 'w') - try: - f.write(content) - finally: - f.close() - return True - -def _same_content(path, content): - return open(path).read() == content - -def _rename_path(path): - new_name = path + '.OLD.%s' % time.time() - log.warn('Renaming %s into %s' % (path, new_name)) - os.rename(path, new_name) - return new_name - -def _remove_flat_installation(placeholder): - if not os.path.isdir(placeholder): - log.warn('Unkown installation at %s' % placeholder) - return False - found = False - for file in os.listdir(placeholder): - if fnmatch.fnmatch(file, 'setuptools*.egg-info'): - found = True - break - if not found: - log.warn('Could not locate setuptools*.egg-info') - else: - log.warn('Removing elements out of the way...') - pkg_info = os.path.join(placeholder, file) - if os.path.isdir(pkg_info): - patched = _patch_egg_dir(pkg_info) - else: - patched = _patch_file(pkg_info, SETUPTOOLS_PKG_INFO) - - if not patched: - log.warn('%s already patched.' % pkg_info) - return False - # now let's move the files out of the way - for element in ('setuptools', 'pkg_resources.py', 'site.py'): - element = os.path.join(placeholder, element) - if os.path.exists(element): - _rename_path(element) - else: - log.warn('Could not find the %s element of the ' - 'Setuptools distribution' % element) - return True - -def after_install(dist): - log.warn('After install bootstrap.') - placeholder = dist.get_command_obj('install').install_purelib - if not os.path.exists(placeholder): - log.warn('Could not find the install location') - return - pyver = '%s.%s' % (sys.version_info[0], sys.version_info[1]) - setuptools_file = 'setuptools-0.6c9-py%s.egg-info' % pyver - pkg_info = os.path.join(placeholder, setuptools_file) - if os.path.exists(pkg_info): - log.warn('%s already exists' % pkg_info) - return - log.warn('Creating %s' % pkg_info) - f = open(pkg_info, 'w') - try: - f.write(SETUPTOOLS_PKG_INFO) - finally: - f.close() - pth_file = os.path.join(placeholder, 'setuptools.pth') - log.warn('Creating %s' % pth_file) - f = open(pth_file, 'w') - try: - f.write(os.path.join(os.curdir, setuptools_file)) - finally: - f.close() - -def _patch_egg_dir(path): - # let's check if it's already patched - pkg_info = os.path.join(path, 'EGG-INFO', 'PKG-INFO') - if os.path.exists(pkg_info): - if _same_content(pkg_info, SETUPTOOLS_PKG_INFO): - log.warn('%s already patched.' % pkg_info) - return False - _rename_path(path) - os.mkdir(path) - os.mkdir(os.path.join(path, 'EGG-INFO')) - pkg_info = os.path.join(path, 'EGG-INFO', 'PKG-INFO') - f = open(pkg_info, 'w') - try: - f.write(SETUPTOOLS_PKG_INFO) - finally: - f.close() - return True - -def before_install(): - log.warn('Before install bootstrap.') - fake_setuptools() - -def fake_setuptools(): - log.warn('Scanning installed packages') - try: - import pkg_resources - except ImportError: - # we're cool - log.warn('Setuptools or Distribute does not seem to be installed.') - return - ws = pkg_resources.working_set - setuptools_dist = ws.find(pkg_resources.Requirement.parse('setuptools')) - if setuptools_dist is None: - log.warn('No setuptools distribution found') - return - # detecting if it was already faked - setuptools_location = setuptools_dist.location - log.warn('Setuptools installation detected at %s' % setuptools_location) - - # let's see if its an egg - if not setuptools_location.endswith('.egg'): - log.warn('Non-egg installation') - res = _remove_flat_installation(setuptools_location) - if not res: - return - else: - log.warn('Egg installation') - pkg_info = os.path.join(setuptools_location, 'EGG-INFO', 'PKG-INFO') - if (os.path.exists(pkg_info) and - _same_content(pkg_info, SETUPTOOLS_PKG_INFO)): - log.warn('Already patched.') - return - log.warn('Patching...') - # let's create a fake egg replacing setuptools one - res = _patch_egg_dir(setuptools_location) - if not res: - return - log.warn('Patched done.') - _relaunch() - -def _relaunch(): - log.warn('Relaunching...') - # we have to relaunch the process - args = [sys.executable] + sys.argv - if is_jython: - sys.exit(subprocess.call(args)) - else: - sys.exit(os.spawnv(os.P_WAIT, sys.executable, args)) - -def _easy_install(argv, egg=None): - from setuptools import setup - from setuptools.dist import Distribution - import distutils.core - if egg is not None: - setup_args = list(argv) + ['-v'] + [egg] - else: - setup_args = list(argv) - try: - return setup(script_args = ['-q','easy_install', - '-v'] + setup_args, - script_name = sys.argv[0] or 'easy_install', - distclass=Distribution) - except DistutilsError: - return sys.exit(2) - -def main(argv, version=DEFAULT_VERSION): - """Install or upgrade setuptools and EasyInstall""" - # let's deactivate any existing setuptools installation first - fake_setuptools() - try: - import setuptools - # we need to check if the installed setuptools - # is from Distribute or from setuptools - if not hasattr(setuptools, '_distribute'): - # now we are ready to install distribute - raise ImportError - except ImportError: - egg = None - try: - egg = download_setuptools(version, delay=0) - sys.path.insert(0, egg) - import setuptools - if not hasattr(setuptools, '_distribute'): - placeholder = os.path.split(os.path.dirname(setuptools.__file__))[0] - if not placeholder.endswith('.egg'): - res = _remove_flat_installation(placeholder) - if res: - _relaunch() - print >> sys.stderr, ( - "The patch didn't work, Setuptools is still active.\n" - "Possible reason: your have a system-wide setuptools installed " - "and you are in a virtualenv.\n" - "If you are inside a virtualenv, make sure you used the --no-site-packages option" - ) - sys.exit(2) - dist = _easy_install(argv, egg) - after_install(dist) - return - #from setuptools.command import easy_install - #try: - # return easy_install.main(list(argv)+['-v']+[egg]) - #except DistutilsError: - # return sys.exit(2) - finally: - if egg and os.path.exists(egg): - os.unlink(egg) - else: - if setuptools.__version__ == '0.0.1': - print >>sys.stderr, ( - "You have an obsolete version of setuptools installed. Please\n" - "remove it from your system entirely before rerunning this script." - ) - sys.exit(2) - - req = "distribute>="+version - import pkg_resources - try: - pkg_resources.require(req) - except pkg_resources.VersionConflict: - try: - _easy_install(argv, [download_setuptools(delay=0)]) - #from setuptools.command.easy_install import main - except ImportError: - from easy_install import main - main(list(argv)+[download_setuptools(delay=0)]) - sys.exit(0) # try to force an exit - else: - if argv: - _easy_install(argv) - #from setuptools.command.easy_install import main - #main(argv) - else: - print "distribute version",version,"or greater has been installed." - print '(Run "distribute_setup.py -U distribute" to reinstall or upgrade.)' - -def update_md5(filenames): - """Update our built-in md5 registry""" - - import re - - for name in filenames: - base = os.path.basename(name) - f = open(name,'rb') - md5_data[base] = md5(f.read()).hexdigest() - f.close() - - data = [" %r: %r,\n" % it for it in md5_data.items()] - data.sort() - repl = "".join(data) - - import inspect - srcfile = inspect.getsourcefile(sys.modules[__name__]) - f = open(srcfile, 'rb'); src = f.read(); f.close() - - match = re.search("\nmd5_data = {\n([^}]+)}", src) - if not match: - print >>sys.stderr, "Internal error!" - sys.exit(2) - - src = src[:match.start(1)] + repl + src[match.end(1):] - f = open(srcfile,'w') - f.write(src) - f.close() - - -if __name__ == '__main__': - if len(sys.argv) > 2 and sys.argv[1] == '--md5update': - update_md5(sys.argv[2:]) - else: - main(sys.argv[1:]) - diff --git a/docs/Makefile b/docs/Makefile deleted file mode 100644 index 30bf10a930..0000000000 --- a/docs/Makefile +++ /dev/null @@ -1,75 +0,0 @@ -# Makefile for Sphinx documentation -# - -# You can set these variables from the command line. -SPHINXOPTS = -SPHINXBUILD = sphinx-build -PAPER = - -# Internal variables. -PAPEROPT_a4 = -D latex_paper_size=a4 -PAPEROPT_letter = -D latex_paper_size=letter -ALLSPHINXOPTS = -d build/doctrees $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) . - -.PHONY: help clean html web pickle htmlhelp latex changes linkcheck - -help: - @echo "Please use \`make ' where is one of" - @echo " html to make standalone HTML files" - @echo " pickle to make pickle files" - @echo " json to make JSON files" - @echo " htmlhelp to make HTML files and a HTML help project" - @echo " latex to make LaTeX files, you can set PAPER=a4 or PAPER=letter" - @echo " changes to make an overview over all changed/added/deprecated items" - @echo " linkcheck to check all external links for integrity" - -clean: - -rm -rf build/* - -html: - mkdir -p build/html build/doctrees - $(SPHINXBUILD) -b html $(ALLSPHINXOPTS) build/html - @echo - @echo "Build finished. The HTML pages are in build/html." - -pickle: - mkdir -p build/pickle build/doctrees - $(SPHINXBUILD) -b pickle $(ALLSPHINXOPTS) build/pickle - @echo - @echo "Build finished; now you can process the pickle files." - -web: pickle - -json: - mkdir -p build/json build/doctrees - $(SPHINXBUILD) -b json $(ALLSPHINXOPTS) build/json - @echo - @echo "Build finished; now you can process the JSON files." - -htmlhelp: - mkdir -p build/htmlhelp build/doctrees - $(SPHINXBUILD) -b htmlhelp $(ALLSPHINXOPTS) build/htmlhelp - @echo - @echo "Build finished; now you can run HTML Help Workshop with the" \ - ".hhp project file in build/htmlhelp." - -latex: - mkdir -p build/latex build/doctrees - $(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) build/latex - @echo - @echo "Build finished; the LaTeX files are in build/latex." - @echo "Run \`make all-pdf' or \`make all-ps' in that directory to" \ - "run these through (pdf)latex." - -changes: - mkdir -p build/changes build/doctrees - $(SPHINXBUILD) -b changes $(ALLSPHINXOPTS) build/changes - @echo - @echo "The overview file is in build/changes." - -linkcheck: - mkdir -p build/linkcheck build/doctrees - $(SPHINXBUILD) -b linkcheck $(ALLSPHINXOPTS) build/linkcheck - @echo - @echo "Link check complete; look for any errors in the above output " \ - "or in build/linkcheck/output.txt." diff --git a/docs/artwork.rst b/docs/artwork.rst new file mode 100644 index 0000000000..d815561e9d --- /dev/null +++ b/docs/artwork.rst @@ -0,0 +1,118 @@ +======= +Artwork +======= + +.. figure:: images/logo-over-white.svg + :align: center + + Setuptools logo, designed in 2021 by `Anderson Bravalheri`_ + +Elements of Design +================== + +The main colours of the design are a dark pastel azure (``#336790``) and a pale +orange (``#E5B62F``), referred in this document simply as "blue" and "yellow" +respectively. The text uses the *Monoid* typeface, an open source webfont that +was developed by Andreas Larsen and contributors in 2015 and is distributed +under the MIT or SIL licenses (more information at +https://github.com/larsenwork/monoid) + + +Usage +===== + +The preferred way of using the setuptools logo is over a white (or light) +background. Alternatively, the following options can be considered, depending +on the circumstances: + +- *"negative"* design - for dark backgrounds (e.g. website displayed in "dark + mode"): the white colour (``#FFFFFF``) of the background and the "blue" + (``#336790``) colour of the design can be swapped. +- *"monochrome"* - when colours are not available (e.g. black and white printed + media): a completely black or white version of the logo can also be used. +- *"banner"* mode: the symbol and text can be used alongside depending on the + available space. + +The following image illustrate these alternatives: + +.. image:: images/logo-demo.svg + :align: center + +Please refer to the SVG files in the `setuptools repository`_ for the specific +shapes and proportions between the elements of the design. + + +Working with the Design +======================= + +The `setuptools repository`_ contains a series of vector representations of the +design under the ``docs/images`` directory. These representations can be +manipulated via any graphic editor that support SVG files, +however the free and open-source software Inkscape_ is recommended for maximum +compatibility. + +When selecting the right file to work with, file names including +``editable-inkscape`` indicate "more editable" elements (e.g. editable text), +while the others prioritise SVG paths for maximum reproducibility. + +Also notice that you might have to `install the correct fonts`_ to be able to +visualise or edit some of the designs. + + +Inspiration +=========== + +This design was inspired by :user:`cajhne`'s `original proposal`_ and the +ancient symbol of the ouroboros_. +It features a snake moving in a circular trajectory not only as a reference to +the Python programming language but also to the :pep:`wheel package format <427>` as one +of the distribution formats supported by setuptools. +The shape of the snake also resembles a cog, which together with the hammer is +a nod to the two words that compose the name of the project. + + +License +======= + + +This logo, design variations or a modified version may be used by anyone to +refer to setuptools, but does not indicate endorsement by the project. + +Redistribution, usage and derivative works are permitted under the same license +used by the setuptools software (MIT): + +.. code-block:: text + + Copyright (c) Anderson Bravalheri + + Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files (the "Software"), to + deal in the Software without restriction, including without limitation the + rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + sell copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in + all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + + THE USAGE OF THIS LOGO AND ARTWORK DOES NOT INDICATE ENDORSEMENT BY THE + SETUPTOOLS PROJECT. + +Whenever possible, please make the image a link to +https://github.com/pypa/setuptools or https://setuptools.pypa.io. + + +.. _Anderson Bravalheri: https://github.com/abravalheri +.. _Inkscape: https://inkscape.org +.. _setuptools repository: https://github.com/pypa/setuptools +.. _install the correct fonts: https://wiki.inkscape.org/wiki/Installing_fonts +.. _original proposal: https://github.com/pypa/setuptools/issues/2227#issuecomment-653628344 +.. _ouroboros: https://en.wikipedia.org/wiki/Ouroboros diff --git a/docs/build_meta.rst b/docs/build_meta.rst new file mode 100644 index 0000000000..5cb383227e --- /dev/null +++ b/docs/build_meta.rst @@ -0,0 +1,183 @@ +======================================= +Build System Support +======================================= + +What is it? +------------- + +Python packaging has come `a long way `_. + +The traditional ``setuptools`` way of packaging Python modules +uses a ``setup()`` function within the ``setup.py`` script. Commands such as +``python setup.py bdist`` or ``python setup.py bdist_wheel`` generate a +distribution bundle and ``python setup.py install`` installs the distribution. +This interface makes it difficult to choose other packaging tools without an +overhaul. Because ``setup.py`` scripts allow for arbitrary execution, it +is difficult to provide a reliable user experience across environments +and history. + +:pep:`517` came to +the rescue and specified a new standard for packaging and distributing Python +modules. Under PEP 517: + + A ``pyproject.toml`` file is used to specify which program to use + to generate the distribution. + + Two functions provided by the program, ``build_wheel(directory: str)`` + and ``build_sdist(directory: str)``, create the distribution bundle in the + specified ``directory``. + + The program may use its own configuration file or extend the ``.toml`` file. + + The actual installation is done with ``pip install *.whl`` or + ``pip install *.tar.gz``. If ``*.whl`` is available, ``pip`` will go ahead and copy + its files into the ``site-packages`` directory. If not, ``pip`` will look at + ``pyproject.toml`` and decide which program to use to 'build from source'. + (Note that if there is no ``pyproject.toml`` file or the ``build-backend`` + parameter is not defined, then the fall-back behaviour is to use ``setuptools``.) + +With this standard, switching between packaging tools is a lot easier. + +How to use it? +-------------- + +Start with a package that you want to distribute. You will need your source +files, a ``pyproject.toml`` file and a ``setup.cfg`` file:: + + ~/meowpkg/ + pyproject.toml + setup.cfg + meowpkg/ + __init__.py + module.py + +The ``pyproject.toml`` file specifies the build system (i.e. what is +being used to package your scripts and install from source). To use it with +``setuptools`` the content would be:: + + [build-system] + requires = ["setuptools"] + build-backend = "setuptools.build_meta" + +``build_meta`` implements ``setuptools``' build system support. +The ``setuptools`` package implements the ``build_sdist`` and +``build_wheel`` commands. + +Use ``setuptools``' :ref:`declarative config ` to +specify the package information in ``setup.cfg``:: + + [metadata] + name = meowpkg + version = 0.0.1 + description = a package that meows + + [options] + packages = find: + +.. _building: + +Now generate the distribution. To build the package, use +`PyPA build `_:: + + $ pip install -q build + $ python -m build + +And now it's done! The ``.whl`` file and ``.tar.gz`` can then be distributed +and installed:: + + dist/ + meowpkg-0.0.1.whl + meowpkg-0.0.1.tar.gz + + $ pip install dist/meowpkg-0.0.1.whl + +or:: + + $ pip install dist/meowpkg-0.0.1.tar.gz + + +.. _backend-wrapper: + +Dynamic build dependencies and other ``build_meta`` tweaks +---------------------------------------------------------- + +With the changes introduced by :pep:`517` and :pep:`518`, the +``setup_requires`` configuration field was deprecated in ``setup.cfg`` and +``setup.py``, in favour of directly listing build dependencies in the +``requires`` field of the ``build-system`` table of ``pyproject.toml``. +This approach has a series of advantages and gives package managers and +installers the ability to inspect the build requirements in advance and +perform a series of optimisations. + +However, some package authors might still need to dynamically inspect the final +user's machine before deciding these requirements. One way of doing that, as +specified by :pep:`517`, is to "tweak" ``setuptools.build_meta`` by using an +:pep:`in-tree backend <517#in-tree-build-backends>`. + +.. tip:: Before implementing an *in-tree* backend, have a look at + :pep:`PEP 508 <508#environment-markers>`. Most of the time, dependencies + with **environment markers** are enough to differentiate operating systems + and platforms. + +If you put the following configuration in your ``pyproject.toml``: + +.. code-block:: toml + + [build-system] + requires = ["setuptools"] + build-backend = "backend" + backend-path = ["_custom_build"] + + +then you can implement a thin wrapper around ``build_meta`` in +the ``_custom_build/backend.py`` file, as shown in the following example: + +.. code-block:: python + + from setuptools import build_meta as _orig + from setuptools.build_meta import * + + + def get_requires_for_build_wheel(config_settings=None): + return _orig.get_requires_for_build_wheel(config_settings) + [...] + + + def get_requires_for_build_sdist(config_settings=None): + return _orig.get_requires_for_build_sdist(config_settings) + [...] + + +.. note:: + + You can override any of the functions specified in :pep:`PEP 517 + <517#build-backend-interface>`, not only the ones responsible for gathering + requirements. It is important to ``import *`` so that the hooks that you + choose not to reimplement would be inherited from the setuptools' backend + automatically. This will also cover hooks that might be added in the future + like the ones that :pep:`660` declares. + + +.. important:: Make sure your backend script is included in the :doc:`source + distribution `, otherwise the build will fail. + This can be done by using a SCM_/VCS_ plugin (like :pypi:`setuptools-scm` + and :pypi:`setuptools-svn`), or by correctly setting up :ref:`MANIFEST.in + `. + + The generated ``.tar.gz`` and ``.whl`` files are compressed archives that + can be inspected as follows: + On POSIX systems, this can be done with ``tar -tf dist/*.tar.gz`` + and ``unzip -l dist/*.whl``. + On Windows systems, you can rename the ``.whl`` to ``.zip`` to be able to + inspect it from File Explorer. You can also use the above ``tar`` command in a + command prompt to inspect the ``.tar.gz`` file. Alternatively, there are GUI programs + like `7-zip`_ that handle ``.tar.gz`` and ``.whl`` files. + + In general, the backend script should be present in the ``.tar.gz`` (so the + project can be built from the source) but not in the ``.whl`` (otherwise the + backend script would end up being distributed alongside your package). + See ":doc:`/userguide/package_discovery`" for more details about package + files. + + +.. _SCM: https://en.wikipedia.org/wiki/Software_configuration_management +.. _VCS: https://en.wikipedia.org/wiki/Version_control +.. _7-zip: https://www.7-zip.org diff --git a/docs/conf.py b/docs/conf.py index 74bc7a6c46..d38fad28a0 100644 --- a/docs/conf.py +++ b/docs/conf.py @@ -1,190 +1,250 @@ -# -*- coding: utf-8 -*- -# -# Distribute documentation build configuration file, created by -# sphinx-quickstart on Fri Jul 17 14:22:37 2009. -# -# This file is execfile()d with the current directory set to its containing dir. -# -# The contents of this file are pickled, so don't put values in the namespace -# that aren't pickleable (module imports are okay, they're removed automatically). -# -# Note that not all possible configuration values are present in this -# autogenerated file. -# -# All configuration values have a default; values that are commented out -# serve to show the default. - -import sys, os - -# If your extensions are in another directory, add it here. If the directory -# is relative to the documentation root, use os.path.abspath to make it -# absolute, like shown here. -#sys.path.append(os.path.abspath('.')) - -# General configuration -# --------------------- - -# Add any Sphinx extension module names here, as strings. They can be extensions -# coming with Sphinx (named 'sphinx.ext.*') or your custom ones. -extensions = [] - -# Add any paths that contain templates here, relative to this directory. -templates_path = ['.templates'] - -# The suffix of source filenames. -source_suffix = '.txt' - -# The encoding of source files. -#source_encoding = 'utf-8' - -# The master toctree document. -master_doc = 'index' - -# General information about the project. -project = u'Distribute' -copyright = u'2009, The fellowship of the packaging' +from __future__ import annotations -# The version info for the project you're documenting, acts as replacement for -# |version| and |release|, also used in various other places throughout the -# built documents. -# -# The short X.Y version. -version = '0.6' -# The full version, including alpha/beta/rc tags. -release = '0.6' - -# The language for content autogenerated by Sphinx. Refer to documentation -# for a list of supported languages. -#language = None - -# There are two options for replacing |today|: either, you set today to some -# non-false value, then it is used: -#today = '' -# Else, today_fmt is used as the format for a strftime call. -#today_fmt = '%B %d, %Y' - -# List of documents that shouldn't be included in the build. -#unused_docs = [] - -# List of directories, relative to source directory, that shouldn't be searched -# for source files. -exclude_trees = [] - -# The reST default role (used for this markup: `text`) to use for all documents. -#default_role = None - -# If true, '()' will be appended to :func: etc. cross-reference text. -#add_function_parentheses = True - -# If true, the current module name will be prepended to all description -# unit titles (such as .. function::). -#add_module_names = True - -# If true, sectionauthor and moduleauthor directives will be shown in the -# output. They are ignored by default. -#show_authors = False - -# The name of the Pygments (syntax highlighting) style to use. -pygments_style = 'sphinx' - - -# Options for HTML output -# ----------------------- - -# The style sheet to use for HTML and HTML Help pages. A file of that name -# must exist either in Sphinx' static/ path, or in one of the custom paths -# given in html_static_path. -html_style = 'default.css' - -# The name for this set of Sphinx documents. If None, it defaults to -# " v documentation". -#html_title = None - -# A shorter title for the navigation bar. Default is the same as html_title. -#html_short_title = None - -# The name of an image file (relative to this directory) to place at the top -# of the sidebar. -#html_logo = None - -# The name of an image file (within the static path) to use as favicon of the -# docs. This file should be a Windows icon file (.ico) being 16x16 or 32x32 -# pixels large. -#html_favicon = None - -# Add any paths that contain custom static files (such as style sheets) here, -# relative to this directory. They are copied after the builtin static files, -# so a file named "default.css" will overwrite the builtin "default.css". -html_static_path = ['.static'] - -# If not '', a 'Last updated on:' timestamp is inserted at every page bottom, -# using the given strftime format. -#html_last_updated_fmt = '%b %d, %Y' - -# If true, SmartyPants will be used to convert quotes and dashes to -# typographically correct entities. -#html_use_smartypants = True - -# Custom sidebar templates, maps document names to template names. -#html_sidebars = {} - -# Additional templates that should be rendered to pages, maps page names to -# template names. -#html_additional_pages = {} - -# If false, no module index is generated. -#html_use_modindex = True - -# If false, no index is generated. -#html_use_index = True - -# If true, the index is split into individual pages for each letter. -#html_split_index = False - -# If true, the reST sources are included in the HTML build as _sources/. -#html_copy_source = True - -# If true, an OpenSearch description file will be output, and all pages will -# contain a tag referring to it. The value of this option must be the -# base URL from which the finished HTML is served. -#html_use_opensearch = '' - -# If nonempty, this is the file name suffix for HTML files (e.g. ".xhtml"). -#html_file_suffix = '' - -# Output file base name for HTML help builder. -htmlhelp_basename = 'Distributedoc' - - -# Options for LaTeX output -# ------------------------ - -# The paper size ('letter' or 'a4'). -#latex_paper_size = 'letter' - -# The font size ('10pt', '11pt' or '12pt'). -#latex_font_size = '10pt' - -# Grouping the document tree into LaTeX files. List of tuples -# (source start file, target name, title, author, document class [howto/manual]). -latex_documents = [ - ('index', 'Distribute.tex', ur'Distribute Documentation', - ur'The fellowship of the packaging', 'manual'), +extensions = [ + 'sphinx.ext.autodoc', + 'jaraco.packaging.sphinx', ] -# The name of an image file (relative to this directory) to place at the top of -# the title page. -#latex_logo = None - -# For "manual" documents, if this is true, then toplevel headings are parts, -# not chapters. -#latex_use_parts = False - -# Additional stuff for the LaTeX preamble. -#latex_preamble = '' +master_doc = "index" +html_theme = "furo" + +# Link dates and other references in the changelog +extensions += ['rst.linker'] +link_files = { + '../NEWS.rst': dict( + using=dict( + BB='https://bitbucket.org', + GH='https://github.com', + ), + replace=[ + dict( + pattern=r'(Issue #|\B#)(?P\d+)', + url='{package_url}/issues/{issue}', + ), + dict( + pattern=r'(?m:^((?Pv?\d+(\.\d+){1,2}))\n[-=]+\n)', + with_scm='{text}\n{rev[timestamp]:%d %b %Y}\n', + ), + dict( + pattern=r'PEP[- ](?P\d+)', + url='https://peps.python.org/pep-{pep_number:0>4}/', + ), + dict( + pattern=r'(?\d+)', + url='{package_url}/pull/{pull}', + ), + dict( + pattern=r'BB Pull Request ?#(?P\d+)', + url='{BB}/pypa/setuptools/pull-request/{bb_pull_request}', + ), + dict( + pattern=r'Distribute #(?P\d+)', + url='{BB}/tarek/distribute/issue/{distribute}', + ), + dict( + pattern=r'Buildout #(?P\d+)', + url='{GH}/buildout/buildout/issues/{buildout}', + ), + dict( + pattern=r'Old Setuptools #(?P\d+)', + url='https://bugs.python.org/setuptools/issue{old_setuptools}', + ), + dict( + pattern=r'Jython #(?P\d+)', + url='https://bugs.jython.org/issue{jython}', + ), + dict( + pattern=r'(Python #|bpo-)(?P\d+)', + url='https://bugs.python.org/issue{python}', + ), + dict( + pattern=r'\bpython/cpython#(?P\d+)', + url='{GH}/python/cpython/issues/{cpython}', + ), + dict( + pattern=r'Interop #(?P\d+)', + url='{GH}/pypa/interoperability-peps/issues/{interop}', + ), + dict( + pattern=r'Pip #(?P\d+)', + url='{GH}/pypa/pip/issues/{pip}', + ), + dict( + pattern=r'Packaging #(?P\d+)', + url='{GH}/pypa/packaging/issues/{packaging}', + ), + dict( + pattern=r'[Pp]ackaging (?P\d+(\.\d+)+)', + url='{GH}/pypa/packaging/blob/{packaging_ver}/CHANGELOG.rst', + ), + dict( + pattern=r'setuptools_svn #(?P\d+)', + url='{GH}/jaraco/setuptools_svn/issues/{setuptools_svn}', + ), + dict( + pattern=r'pypa/(?P[\-\.\w]+)#(?P\d+)', + url='{GH}/pypa/{issue_repo}/issues/{issue_number}', + ), + dict( + pattern=r'pypa/(?P[\-\.\w]+)@(?P[\da-f]+)', + url='{GH}/pypa/{commit_repo}/commit/{commit_number}', + ), + ], + ), +} + +# Be strict about any broken references +nitpicky = True +nitpick_ignore: list[tuple[str, str]] = [] + +# Include Python intersphinx mapping to prevent failures +# jaraco/skeleton#51 +extensions += ['sphinx.ext.intersphinx'] +intersphinx_mapping = { + 'python': ('https://docs.python.org/3', None), +} + +# Preserve authored syntax for defaults +autodoc_preserve_defaults = True + +# Add support for linking usernames, PyPI projects, Wikipedia pages +github_url = 'https://github.com/' +extlinks = { + 'user': (f'{github_url}%s', '@%s'), + 'pypi': ('https://pypi.org/project/%s', '%s'), + 'wiki': ('https://wikipedia.org/wiki/%s', '%s'), +} +extensions += ['sphinx.ext.extlinks'] + +# local + +# Ref: https://github.com/python-attrs/attrs/pull/571/files\ +# #diff-85987f48f1258d9ee486e3191495582dR82 +default_role = 'any' + +# HTML theme +html_theme = 'furo' +html_logo = "images/logo.svg" + +html_theme_options = { + "sidebar_hide_name": True, + "light_css_variables": { + "color-brand-primary": "#336790", # "blue" + "color-brand-content": "#336790", + }, + "dark_css_variables": { + "color-brand-primary": "#E5B62F", # "yellow" + "color-brand-content": "#E5B62F", + }, + "source_repository": "https://github.com/pypa/setuptools/", + "source_branch": "main", + "source_directory": "docs/", +} + +# Redirect old docs so links and references in the ecosystem don't break +extensions += ['sphinx_reredirects'] +redirects = { + "userguide/keywords": "/deprecated/changed_keywords.html", + "userguide/commands": "/deprecated/commands.html", +} + +# Add support for inline tabs +extensions += ['sphinx_inline_tabs'] + +# Support for distutils + +# Ref: https://stackoverflow.com/a/30624034/595220 +nitpick_ignore += [ + ('c:func', 'SHGetSpecialFolderPath'), # ref to MS docs + ('envvar', 'DIST_EXTRA_CONFIG'), # undocumented + ('envvar', 'DISTUTILS_DEBUG'), # undocumented + ('envvar', 'HOME'), # undocumented + ('envvar', 'PLAT'), # undocumented + ('py:attr', 'CCompiler.language_map'), # undocumented + ('py:attr', 'CCompiler.language_order'), # undocumented + ('py:class', 'BorlandCCompiler'), # undocumented + ('py:class', 'CCompiler'), # undocumented + ('py:class', 'CygwinCCompiler'), # undocumented + ('py:class', 'distutils.dist.Distribution'), # undocumented + ('py:class', 'distutils.dist.DistributionMetadata'), # undocumented + ('py:class', 'distutils.extension.Extension'), # undocumented + ('py:class', 'FileList'), # undocumented + ('py:class', 'IShellLink'), # ref to MS docs + ('py:class', 'MSVCCompiler'), # undocumented + ('py:class', 'OptionDummy'), # undocumented + ('py:class', 'setuptools.dist.Distribution'), # undocumented + ('py:class', 'UnixCCompiler'), # undocumented + ('py:exc', 'CompileError'), # undocumented + ('py:exc', 'DistutilsExecError'), # undocumented + ('py:exc', 'DistutilsFileError'), # undocumented + ('py:exc', 'LibError'), # undocumented + ('py:exc', 'LinkError'), # undocumented + ('py:exc', 'PreprocessError'), # undocumented + ('py:exc', 'setuptools.errors.PlatformError'), # sphinx cannot find it + ('py:func', 'distutils.CCompiler.new_compiler'), # undocumented + ('py:func', 'distutils.dist.DistributionMetadata.read_pkg_file'), # undocumented + ('py:func', 'distutils.file_util._copy_file_contents'), # undocumented + ('py:func', 'distutils.log.debug'), # undocumented + ('py:func', 'distutils.spawn.find_executable'), # undocumented + ('py:func', 'distutils.spawn.spawn'), # undocumented + # TODO: check https://docutils.rtfd.io in the future + ('py:mod', 'docutils'), # there's no Sphinx site documenting this +] -# Documents to append as an appendix to all manuals. -#latex_appendices = [] +# Allow linking objects on other Sphinx sites seamlessly: +intersphinx_mapping.update( + # python=('https://docs.python.org/3', None), + python=('https://docs.python.org/3.11', None), + # ^-- Python 3.11 is required because it still contains `distutils`. + # Just leaving it as `3` would imply 3.12+, but that causes an + # error with the cross references to distutils functions. + # Inventory cache may cause errors, deleting it solves the problem. +) + +# Add support for the unreleased "next-version" change notes +extensions += ['sphinxcontrib.towncrier'] +# Extension needs a path from here to the towncrier config. +towncrier_draft_working_directory = '..' +# Avoid an empty section for unpublished changes. +towncrier_draft_include_empty = False +# sphinx-contrib/sphinxcontrib-towncrier#81 +towncrier_draft_config_path = 'towncrier.toml' + +extensions += ['jaraco.tidelift'] + +# Add icons (aka "favicons") to documentation +extensions += ['sphinx_favicon'] +html_static_path = ['images'] # should contain the folder with icons + +# Add support for nice Not Found 404 pages +extensions += ['notfound.extension'] + +# List of dicts with HTML attributes +# static-file points to files in the html_static_path (href is computed) +favicons = [ + { # "Catch-all" goes first, otherwise some browsers will overwrite + "rel": "icon", + "type": "image/svg+xml", + "static-file": "logo-symbol-only.svg", + "sizes": "any", + }, + { # Version with thicker strokes for better visibility at smaller sizes + "rel": "icon", + "type": "image/svg+xml", + "static-file": "favicon.svg", + "sizes": "16x16 24x24 32x32 48x48", + }, + # rel="apple-touch-icon" does not support SVG yet +] -# If false, no module index is generated. -#latex_use_modindex = True +intersphinx_mapping.update({ + 'pip': ('https://pip.pypa.io/en/latest', None), + 'build': ('https://build.pypa.io/en/latest', None), + 'PyPUG': ('https://packaging.python.org/en/latest', None), + 'packaging': ('https://packaging.pypa.io/en/latest', None), + 'twine': ('https://twine.readthedocs.io/en/stable', None), + 'importlib-resources': ( + 'https://importlib-resources.readthedocs.io/en/latest', + None, + ), +}) diff --git a/docs/deprecated/changed_keywords.rst b/docs/deprecated/changed_keywords.rst new file mode 100644 index 0000000000..7db372f2fe --- /dev/null +++ b/docs/deprecated/changed_keywords.rst @@ -0,0 +1,112 @@ +New and Changed ``setup()`` Keywords +==================================== + +This document tracks historical differences between ``setuptools`` and +``distutils``. + +Since ``distutils`` was scheduled for removal from the standard library in +Python 3.12, and ``setuptools`` started its adoption, these differences became less +relevant. +Please check :doc:`/references/keywords` for a complete list of keyword +arguments that can be passed to the ``setuptools.setup()`` function and +a their full description. + +.. tab:: Supported by both ``distutils`` and ``setuptoools`` + + ``name`` string + + ``version`` string + + ``description`` string + + ``long_description`` string + + ``long_description_content_type`` string + + ``author`` string + + ``author_email`` string + + ``maintainer`` string + + ``maintainer_email`` string + + ``url`` string + + ``download_url`` string + + ``packages`` list + + ``py_modules`` list + + ``scripts`` list + + ``ext_package`` string + + ``ext_modules`` list + + ``classifiers`` list + + ``distclass`` Distribution subclass + + ``script_name`` string + + ``script_args`` list + + ``options`` dictionary + + ``license`` string + + ``license_file`` string **deprecated** + + ``license_files`` list + + ``keywords`` string or list + + ``platforms`` list + + ``cmdclass`` dictionary + + ``data_files`` list **deprecated** + + ``package_dir`` dictionary + + ``requires`` string or list **deprecated** + + ``obsoletes`` list **deprecated** + + ``provides`` list + +.. tab:: Added or changed by ``setuptoools`` + + ``include_package_data`` bool + + ``exclude_package_data`` dictionary + + ``package_data`` dictionary + + ``zip_safe`` bool + + ``install_requires`` string or list + + ``entry_points`` dictionary + + ``extras_require`` dictionary + + ``python_requires`` string + + ``setup_requires`` string or list **deprecated** + + ``dependency_links`` list **deprecated** + + ``namespace_packages`` list + + ``test_suite`` string or function **deprecated** + + ``tests_require`` string or list **deprecated** + + ``test_loader`` class **deprecated** + + ``eager_resources`` list + + ``project_urls`` dictionary diff --git a/docs/deprecated/commands.rst b/docs/deprecated/commands.rst new file mode 100644 index 0000000000..64d8840378 --- /dev/null +++ b/docs/deprecated/commands.rst @@ -0,0 +1,622 @@ +=============================== +Running ``setuptools`` commands +=============================== + +Historically, ``setuptools`` allowed running commands via a ``setup.py`` script +at the root of a Python project, as indicated in the examples below:: + + python setup.py --help + python setup.py --help-commands + python setup.py --version + python setup.py sdist + python setup.py bdist_wheel + +You could also run commands in other circumstances: + +* ``setuptools`` projects without ``setup.py`` (e.g., ``setup.cfg``-only):: + + python -c "from setuptools import setup; setup()" --help + +* ``distutils`` projects (with a ``setup.py`` importing ``distutils``):: + + python -c "import setuptools; with open('setup.py') as f: exec(compile(f.read(), 'setup.py', 'exec'))" develop + +That is, you can simply list the normal setup commands and options following the quoted part. + +.. warning:: + While it is perfectly fine that users write ``setup.py`` files to configure + a package build (e.g. to specify binary extensions or customize commands), + on recent versions of ``setuptools``, running ``python setup.py`` directly + as a script is considered **deprecated**. This also means that users should + avoid running commands directly via ``python setup.py ``. + + If you want to create :term:`sdist ` or :term:`wheel` + distributions the recommendation is to use the command line tool provided by :pypi:`build`:: + + pip install build # needs to be installed first + + python -m build # builds both sdist and wheel + python -m build --sdist + python -m build --wheel + + Build will automatically download ``setuptools`` and build the package in an + isolated environment. You can also specify specific versions of + ``setuptools``, by setting the :doc:`build requirements in pyproject.toml + `. + + If you want to install a package, you can use :pypi:`pip` or :pypi:`installer`:: + + pip install /path/to/wheel/file.whl + pip install /path/to/sdist/file.tar.gz + pip install . # replacement for python setup.py install + pip install --editable . # replacement for python setup.py develop + + pip install installer # needs to be installed first + python -m installer /path/to/wheel/file.whl + +----------------- +Command Reference +----------------- + +.. _alias: + +``alias`` - Define shortcuts for commonly used commands +======================================================= + +Sometimes, you need to use the same commands over and over, but you can't +necessarily set them as defaults. For example, if you produce both development +snapshot releases and "stable" releases of a project, you may want to put +the distributions in different places, or use different ``egg_info`` tagging +options, etc. In these cases, it doesn't make sense to set the options in +a distutils configuration file, because the values of the options changed based +on what you're trying to do. + +Setuptools therefore allows you to define "aliases" - shortcut names for +an arbitrary string of commands and options, using ``setup.py alias aliasname +expansion``, where aliasname is the name of the new alias, and the remainder of +the command line supplies its expansion. For example, this command defines +a sitewide alias called "daily", that sets various ``egg_info`` tagging +options:: + + setup.py alias --global-config daily egg_info --tag-build=development + +Once the alias is defined, it can then be used with other setup commands, +e.g.:: + + setup.py daily bdist_egg # generate a daily-build .egg file + setup.py daily sdist # generate a daily-build source distro + setup.py daily sdist bdist_egg # generate both + +The above commands are interpreted as if the word ``daily`` were replaced with +``egg_info --tag-build=development``. + +Note that setuptools will expand each alias *at most once* in a given command +line. This serves two purposes. First, if you accidentally create an alias +loop, it will have no effect; you'll instead get an error message about an +unknown command. Second, it allows you to define an alias for a command, that +uses that command. For example, this (project-local) alias:: + + setup.py alias bdist_egg bdist_egg rotate -k1 -m.egg + +redefines the ``bdist_egg`` command so that it always runs the ``rotate`` +command afterwards to delete all but the newest egg file. It doesn't loop +indefinitely on ``bdist_egg`` because the alias is only expanded once when +used. + +You can remove a defined alias with the ``--remove`` (or ``-r``) option, e.g.:: + + setup.py alias --global-config --remove daily + +would delete the "daily" alias we defined above. + +Aliases can be defined on a project-specific, per-user, or sitewide basis. The +default is to define or remove a project-specific alias, but you can use any of +the `configuration file options`_ (listed under the `saveopts`_ command, below) +to determine which distutils configuration file an aliases will be added to +(or removed from). + +Note that if you omit the "expansion" argument to the ``alias`` command, +you'll get output showing that alias' current definition (and what +configuration file it's defined in). If you omit the alias name as well, +you'll get a listing of all current aliases along with their configuration +file locations. + + +``bdist_egg`` - Create a Python Egg for the project +=================================================== + +.. warning:: + **eggs** are deprecated in favor of wheels, and not supported by pip. + +This command generates a Python Egg (``.egg`` file) for the project. Python +Eggs are the preferred binary distribution format for EasyInstall, because they +are cross-platform (for "pure" packages), directly importable, and contain +project metadata including scripts and information about the project's +dependencies. They can be simply downloaded and added to ``sys.path`` +directly, or they can be placed in a directory on ``sys.path`` and then +automatically discovered by the egg runtime system. + +This command runs the `egg_info`_ command (if it hasn't already run) to update +the project's metadata (``.egg-info``) directory. If you have added any extra +metadata files to the ``.egg-info`` directory, those files will be included in +the new egg file's metadata directory, for use by the egg runtime system or by +any applications or frameworks that use that metadata. + +You won't usually need to specify any special options for this command; just +use ``bdist_egg`` and you're done. But there are a few options that may +be occasionally useful: + +``--dist-dir=DIR, -d DIR`` + Set the directory where the ``.egg`` file will be placed. If you don't + supply this, then the ``--dist-dir`` setting of the ``bdist`` command + will be used, which is usually a directory named ``dist`` in the project + directory. + +``--plat-name=PLATFORM, -p PLATFORM`` + Set the platform name string that will be embedded in the egg's filename + (assuming the egg contains C extensions). This can be used to override + the distutils default platform name with something more meaningful. Keep + in mind, however, that the egg runtime system expects to see eggs with + distutils platform names, so it may ignore or reject eggs with non-standard + platform names. Similarly, the EasyInstall program may ignore them when + searching web pages for download links. However, if you are + cross-compiling or doing some other unusual things, you might find a use + for this option. + +``--exclude-source-files`` + Don't include any modules' ``.py`` files in the egg, just compiled Python, + C, and data files. (Note that this doesn't affect any ``.py`` files in the + EGG-INFO directory or its subdirectories, since for example there may be + scripts with a ``.py`` extension which must still be retained.) We don't + recommend that you use this option except for packages that are being + bundled for proprietary end-user applications, or for "embedded" scenarios + where space is at an absolute premium. On the other hand, if your package + is going to be installed and used in compressed form, you might as well + exclude the source because Python's ``traceback`` module doesn't currently + understand how to display zipped source code anyway, or how to deal with + files that are in a different place from where their code was compiled. + +There are also some options you will probably never need, but which are there +because they were copied from similar ``bdist`` commands used as an example for +creating this one. They may be useful for testing and debugging, however, +which is why we kept them: + +``--keep-temp, -k`` + Keep the contents of the ``--bdist-dir`` tree around after creating the + ``.egg`` file. + +``--bdist-dir=DIR, -b DIR`` + Set the temporary directory for creating the distribution. The entire + contents of this directory are zipped to create the ``.egg`` file, after + running various installation commands to copy the package's modules, data, + and extensions here. + +``--skip-build`` + Skip doing any "build" commands; just go straight to the + install-and-compress phases. + + +.. _develop: + +``develop`` - Deploy the project source in "Development Mode" +============================================================= + +This command allows you to deploy your project's source for use in one or more +"staging areas" where it will be available for importing. This deployment is +done in such a way that changes to the project source are immediately available +in the staging area(s), without needing to run a build or install step after +each change. + +The ``develop`` command works by creating an ``.egg-link`` file (named for the +project) in the given staging area. If the staging area is Python's +``site-packages`` directory, it also updates an ``easy-install.pth`` file so +that the project is on ``sys.path`` by default for all programs run using that +Python installation. + +The ``develop`` command also installs wrapper scripts in the staging area (or +a separate directory, as specified) that will ensure the project's dependencies +are available on ``sys.path`` before running the project's source scripts. +And, it ensures that any missing project dependencies are available in the +staging area, by downloading and installing them if necessary. + +Last, but not least, the ``develop`` command invokes the ``build_ext -i`` +command to ensure any C extensions in the project have been built and are +up-to-date, and the ``egg_info`` command to ensure the project's metadata is +updated (so that the runtime and wrappers know what the project's dependencies +are). If you make any changes to the project's setup script or C extensions, +you should rerun the ``develop`` command against all relevant staging areas to +keep the project's scripts, metadata and extensions up-to-date. Most other +kinds of changes to your project should not require any build operations or +rerunning ``develop``, but keep in mind that even minor changes to the setup +script (e.g. changing an entry point definition) require you to re-run the +``develop`` or ``test`` commands to keep the distribution updated. + +Here are some of the options that the ``develop`` command accepts. Note that +they affect the project's dependencies as well as the project itself, so if you +have dependencies that need to be installed and you use ``--exclude-scripts`` +(for example), the dependencies' scripts will not be installed either! For +this reason, you may want to use pip to install the project's dependencies +before using the ``develop`` command, if you need finer control over the +installation options for dependencies. + +``--uninstall, -u`` + Un-deploy the current project. You may use the ``--install-dir`` or ``-d`` + option to designate the staging area. The created ``.egg-link`` file will + be removed, if present and it is still pointing to the project directory. + The project directory will be removed from ``easy-install.pth`` if the + staging area is Python's ``site-packages`` directory. + + Note that this option currently does *not* uninstall script wrappers! You + must uninstall them yourself, or overwrite them by using pip to install a + different version of the package. You can also avoid installing script + wrappers in the first place, if you use the ``--exclude-scripts`` (aka + ``-x``) option when you run ``develop`` to deploy the project. + +``--multi-version, -m`` + "Multi-version" mode. Specifying this option prevents ``develop`` from + adding an ``easy-install.pth`` entry for the project(s) being deployed, and + if an entry for any version of a project already exists, the entry will be + removed upon successful deployment. In multi-version mode, no specific + version of the package is available for importing, unless you use + ``pkg_resources.require()`` to put it on ``sys.path``, or you are running + a wrapper script generated by ``setuptools``. (In which case the wrapper + script calls ``require()`` for you.) + + Note that if you install to a directory other than ``site-packages``, + this option is automatically in effect, because ``.pth`` files can only be + used in ``site-packages`` (at least in Python 2.3 and 2.4). So, if you use + the ``--install-dir`` or ``-d`` option (or they are set via configuration + file(s)) your project and its dependencies will be deployed in + multi-version mode. + +``--install-dir=DIR, -d DIR`` + Set the installation directory (staging area). If this option is not + directly specified on the command line or in a distutils configuration + file, the distutils default installation location is used. Normally, this + will be the ``site-packages`` directory, but if you are using distutils + configuration files, setting things like ``prefix`` or ``install_lib``, + then those settings are taken into account when computing the default + staging area. + +``--script-dir=DIR, -s DIR`` + Set the script installation directory. If you don't supply this option + (via the command line or a configuration file), but you *have* supplied + an ``--install-dir`` (via command line or config file), then this option + defaults to the same directory, so that the scripts will be able to find + their associated package installation. Otherwise, this setting defaults + to the location where the distutils would normally install scripts, taking + any distutils configuration file settings into account. + +``--exclude-scripts, -x`` + Don't deploy script wrappers. This is useful if you don't want to disturb + existing versions of the scripts in the staging area. + +``--always-copy, -a`` + Copy all needed distributions to the staging area, even if they + are already present in another directory on ``sys.path``. By default, if + a requirement can be met using a distribution that is already available in + a directory on ``sys.path``, it will not be copied to the staging area. + +``--egg-path=DIR`` + Force the generated ``.egg-link`` file to use a specified relative path + to the source directory. This can be useful in circumstances where your + installation directory is being shared by code running under multiple + platforms (e.g. Mac and Windows) which have different absolute locations + for the code under development, but the same *relative* locations with + respect to the installation directory. If you use this option when + installing, you must supply the same relative path when uninstalling. + +In addition to the above options, the ``develop`` command also accepts all of +the same options accepted by ``easy_install``. If you've configured any +``easy_install`` settings in your ``setup.cfg`` (or other distutils config +files), the ``develop`` command will use them as defaults, unless you override +them in a ``[develop]`` section or on the command line. + + +.. _egg_info: + +``egg_info`` - Create egg metadata and set build tags +===================================================== + +This command performs two operations: it updates a project's ``.egg-info`` +metadata directory (used by the ``bdist_egg``, ``develop``, and ``test`` +commands), and it allows you to temporarily change a project's version string, +to support "daily builds" or "snapshot" releases. It is run automatically by +the ``sdist``, ``bdist_egg``, ``develop``, and ``test`` commands in order to +update the project's metadata, but you can also specify it explicitly in order +to temporarily change the project's version string while executing other +commands. (It also generates the ``.egg-info/SOURCES.txt`` manifest file, which +is used when you are building source distributions.) + +In addition to writing the core egg metadata defined by ``setuptools`` and +required by ``pkg_resources``, this command can be extended to write other +metadata files as well, by defining entry points in the ``egg_info.writers`` +group. See the section on :ref:`Adding new EGG-INFO Files` below for more details. +Note that using additional metadata writers may require you to include a +``setup_requires`` argument to ``setup()`` in order to ensure that the desired +writers are available on ``sys.path``. + + +Release Tagging Options +----------------------- + +The following options can be used to modify the project's version string for +all remaining commands on the setup command line. The options are processed +in the order shown, so if you use more than one, the requested tags will be +added in the following order: + +``--tag-build=NAME, -b NAME`` + Append NAME to the project's version string. Due to the way setuptools + processes "pre-release" version suffixes beginning with the letters "a" + through "e" (like "alpha", "beta", and "candidate"), you will usually want + to use a tag like ".build" or ".dev", as this will cause the version number + to be considered *lower* than the project's default version. (If you + want to make the version number *higher* than the default version, you can + always leave off --tag-build and then use one or both of the following + options.) + + If you have a default build tag set in your ``setup.cfg``, you can suppress + it on the command line using ``-b ""`` or ``--tag-build=""`` as an argument + to the ``egg_info`` command. + +``--tag-date, -d`` + Add a date stamp of the form "-YYYYMMDD" (e.g. "-20050528") to the + project's version number. + +``--no-date, -D`` + Don't include a date stamp in the version number. This option is included + so you can override a default setting in ``setup.cfg``. + + +(Note: Because these options modify the version number used for source and +binary distributions of your project, you should first make sure that you know +how the resulting version numbers will be interpreted by automated tools +like pip. See the section above on :ref:`Specifying Your Project's Version` for an +explanation of pre- and post-release tags, as well as tips on how to choose and +verify a versioning scheme for your project.) + +For advanced uses, there is one other option that can be set, to change the +location of the project's ``.egg-info`` directory. Commands that need to find +the project's source directory or metadata should get it from this setting: + + +Other ``egg_info`` Options +-------------------------- + +``--egg-base=SOURCEDIR, -e SOURCEDIR`` + Specify the directory that should contain the .egg-info directory. This + should normally be the root of your project's source tree (which is not + necessarily the same as your project directory; some projects use a ``src`` + or ``lib`` subdirectory as the source root). You should not normally need + to specify this directory, as it is normally determined from the + ``package_dir`` argument to the ``setup()`` function, if any. If there is + no ``package_dir`` set, this option defaults to the current directory. + + +``egg_info`` Examples +--------------------- + +Creating a dated "nightly build" snapshot egg:: + + setup.py egg_info --tag-date --tag-build=DEV bdist_egg + +Creating a release with no version tags, even if some default tags are +specified in ``setup.cfg``:: + + setup.py egg_info -RDb "" sdist bdist_egg + +(Notice that ``egg_info`` must always appear on the command line *before* any +commands that you want the version changes to apply to.) + +.. _rotate: + +``rotate`` - Delete outdated distribution files +=============================================== + +As you develop new versions of your project, your distribution (``dist``) +directory will gradually fill up with older source and/or binary distribution +files. The ``rotate`` command lets you automatically clean these up, keeping +only the N most-recently modified files matching a given pattern. + +``--match=PATTERNLIST, -m PATTERNLIST`` + Comma-separated list of glob patterns to match. This option is *required*. + The project name and ``-*`` is prepended to the supplied patterns, in order + to match only distributions belonging to the current project (in case you + have a shared distribution directory for multiple projects). Typically, + you will use a glob pattern like ``.zip`` or ``.egg`` to match files of + the specified type. Note that each supplied pattern is treated as a + distinct group of files for purposes of selecting files to delete. + +``--keep=COUNT, -k COUNT`` + Number of matching distributions to keep. For each group of files + identified by a pattern specified with the ``--match`` option, delete all + but the COUNT most-recently-modified files in that group. This option is + *required*. + +``--dist-dir=DIR, -d DIR`` + Directory where the distributions are. This defaults to the value of the + ``bdist`` command's ``--dist-dir`` option, which will usually be the + project's ``dist`` subdirectory. + +**Example 1**: Delete all .tar.gz files from the distribution directory, except +for the 3 most recently modified ones:: + + setup.py rotate --match=.tar.gz --keep=3 + +**Example 2**: Delete all Python 2.3 or Python 2.4 eggs from the distribution +directory, except the most recently modified one for each Python version:: + + setup.py rotate --match=-py2.3*.egg,-py2.4*.egg --keep=1 + + +.. _saveopts: + +``saveopts`` - Save used options to a configuration file +======================================================== + +Finding and editing ``distutils`` configuration files can be a pain, especially +since you also have to translate the configuration options from command-line +form to the proper configuration file format. You can avoid these hassles by +using the ``saveopts`` command. Just add it to the command line to save the +options you used. For example, this command builds the project using +the ``mingw32`` C compiler, then saves the --compiler setting as the default +for future builds (even those run implicitly by the ``install`` command):: + + setup.py build --compiler=mingw32 saveopts + +The ``saveopts`` command saves all options for every command specified on the +command line to the project's local ``setup.cfg`` file, unless you use one of +the `configuration file options`_ to change where the options are saved. For +example, this command does the same as above, but saves the compiler setting +to the site-wide (global) distutils configuration:: + + setup.py build --compiler=mingw32 saveopts -g + +Note that it doesn't matter where you place the ``saveopts`` command on the +command line; it will still save all the options specified for all commands. +For example, this is another valid way to spell the last example:: + + setup.py saveopts -g build --compiler=mingw32 + +Note, however, that all of the commands specified are always run, regardless of +where ``saveopts`` is placed on the command line. + + +Configuration File Options +-------------------------- + +Normally, settings such as options and aliases are saved to the project's +local ``setup.cfg`` file. But you can override this and save them to the +global or per-user configuration files, or to a manually-specified filename. + +``--global-config, -g`` + Save settings to the global ``distutils.cfg`` file inside the ``distutils`` + package directory. You must have write access to that directory to use + this option. You also can't combine this option with ``-u`` or ``-f``. + +``--user-config, -u`` + Save settings to the current user's ``~/.pydistutils.cfg`` (POSIX) or + ``$HOME/pydistutils.cfg`` (Windows) file. You can't combine this option + with ``-g`` or ``-f``. + +``--filename=FILENAME, -f FILENAME`` + Save settings to the specified configuration file to use. You can't + combine this option with ``-g`` or ``-u``. Note that if you specify a + non-standard filename, the ``distutils`` and ``setuptools`` will not + use the file's contents. This option is mainly included for use in + testing. + +These options are used by other ``setuptools`` commands that modify +configuration files, such as the `alias`_ and `setopt`_ commands. + + +.. _setopt: + +``setopt`` - Set a distutils or setuptools option in a config file +================================================================== + +This command is mainly for use by scripts, but it can also be used as a quick +and dirty way to change a distutils configuration option without having to +remember what file the options are in and then open an editor. + +**Example 1**. Set the default C compiler to ``mingw32`` (using long option +names):: + + setup.py setopt --command=build --option=compiler --set-value=mingw32 + +**Example 2**. Remove any setting for the distutils default package +installation directory (short option names):: + + setup.py setopt -c install -o install_lib -r + + +Options for the ``setopt`` command: + +``--command=COMMAND, -c COMMAND`` + Command to set the option for. This option is required. + +``--option=OPTION, -o OPTION`` + The name of the option to set. This option is required. + +``--set-value=VALUE, -s VALUE`` + The value to set the option to. Not needed if ``-r`` or ``--remove`` is + set. + +``--remove, -r`` + Remove (unset) the option, instead of setting it. + +In addition to the above options, you may use any of the `configuration file +options`_ (listed under the `saveopts`_ command, above) to determine which +distutils configuration file the option will be added to (or removed from). + + +.. _test: + +``test`` - Build package and run a unittest suite +================================================= + +.. warning:: + ``test`` is deprecated and will be removed in a future version. Users + looking for a generic test entry point independent of test runner are + encouraged to use `tox `_. + +When doing test-driven development, or running automated builds that need +testing before they are deployed for downloading or use, it's often useful +to be able to run a project's unit tests without actually deploying the project +anywhere, even using the ``develop`` command. The ``test`` command runs a +project's unit tests without actually deploying it, by temporarily putting the +project's source on ``sys.path``, after first running ``build_ext -i`` and +``egg_info`` to ensure that any C extensions and project metadata are +up-to-date. + +To use this command, your project's tests must be wrapped in a ``unittest`` +test suite by either a function, a ``TestCase`` class or method, or a module +or package containing ``TestCase`` classes. If the named suite is a module, +and the module has an ``additional_tests()`` function, it is called and the +result (which must be a ``unittest.TestSuite``) is added to the tests to be +run. If the named suite is a package, any submodules and subpackages are +recursively added to the overall test suite. (Note: if your project specifies +a ``test_loader``, the rules for processing the chosen ``test_suite`` may +differ; see the :ref:`test_loader ` documentation for more details.) + +Note that many test systems including ``doctest`` support wrapping their +non-``unittest`` tests in ``TestSuite`` objects. So, if you are using a test +package that does not support this, we suggest you encourage its developers to +implement test suite support, as this is a convenient and standard way to +aggregate a collection of tests to be run under a common test harness. + +By default, tests will be run in the "verbose" mode of the ``unittest`` +package's text test runner, but you can get the "quiet" mode (just dots) if +you supply the ``-q`` or ``--quiet`` option, either as a global option to +the setup script (e.g. ``setup.py -q test``) or as an option for the ``test`` +command itself (e.g. ``setup.py test -q``). There is one other option +available: + +``--test-suite=NAME, -s NAME`` + Specify the test suite (or module, class, or method) to be run + (e.g. ``some_module.test_suite``). The default for this option can be + set by giving a ``test_suite`` argument to the ``setup()`` function, e.g.:: + + setup( + # ... + test_suite="my_package.tests.test_all" + ) + + If you did not set a ``test_suite`` in your ``setup()`` call, and do not + provide a ``--test-suite`` option, an error will occur. + +New in 41.5.0: Deprecated the test command. + + +.. _upload: + +``upload`` - Upload source and/or egg distributions to PyPI +=========================================================== + +The ``upload`` command was deprecated in version 40.0 and removed in version +42.0. Use `twine `_ instead. + +For more information on the current best practices in uploading your packages +to PyPI, see the Python Packaging User Guide's "Packaging Python Projects" +tutorial specifically the section on `uploading the distribution archives +`_. diff --git a/docs/deprecated/dependency_links.rst b/docs/deprecated/dependency_links.rst new file mode 100644 index 0000000000..70e1a78e4a --- /dev/null +++ b/docs/deprecated/dependency_links.rst @@ -0,0 +1,77 @@ +Specifying dependencies that aren't in PyPI via ``dependency_links`` +==================================================================== + +.. warning:: + Dependency links support has been dropped by pip starting with version + 19.0 (released 2019-01-22). + +If your project depends on packages that don't exist on PyPI, you *may* still be +able to depend on them if they are available for download as: + +- an egg, in the standard distutils ``sdist`` format, +- a single ``.py`` file, or +- a VCS repository (Subversion, Mercurial, or Git). + +You need to add some URLs to the ``dependency_links`` argument to ``setup()``. + +The URLs must be either: + +1. direct download URLs, +2. the URLs of web pages that contain direct download links, or +3. the repository's URL + +In general, it's better to link to web pages, because it is usually less +complex to update a web page than to release a new version of your project. +You can also use a SourceForge ``showfiles.php`` link in the case where a +package you depend on is distributed via SourceForge. + +If you depend on a package that's distributed as a single ``.py`` file, you +must include an ``"#egg=project-version"`` suffix to the URL, to give a project +name and version number. (Be sure to escape any dashes in the name or version +by replacing them with underscores.) EasyInstall will recognize this suffix +and automatically create a trivial ``setup.py`` to wrap the single ``.py`` file +as an egg. + +In the case of a VCS checkout, you should also append ``#egg=project-version`` +in order to identify for what package that checkout should be used. You can +append ``@REV`` to the URL's path (before the fragment) to specify a revision. +Additionally, you can also force the VCS being used by prepending the URL with +a certain prefix. Currently available are: + +- ``svn+URL`` for Subversion, +- ``git+URL`` for Git, and +- ``hg+URL`` for Mercurial + +A more complete example would be: + + ``vcs+proto://host/path@revision#egg=project-version`` + +Be careful with the version. It should match the one inside the project files. +If you want to disregard the version, you have to omit it both in the +``requires`` and in the URL's fragment. + +This will do a checkout (or a clone, in Git and Mercurial parlance) to a +temporary folder and run ``setup.py bdist_egg``. + +The ``dependency_links`` option takes the form of a list of URL strings. For +example, this will cause a search of the specified page for eggs or source +distributions, if the package's dependencies aren't already installed: + +.. tab:: setup.cfg + + .. code-block:: ini + + [options] + #... + dependency_links = http://peak.telecommunity.com/snapshots/ + +.. tab:: setup.py + + .. code-block:: python + + setup( + ..., + dependency_links=[ + "http://peak.telecommunity.com/snapshots/", + ], + ) diff --git a/docs/deprecated/distutils-legacy.rst b/docs/deprecated/distutils-legacy.rst new file mode 100644 index 0000000000..166fcd584a --- /dev/null +++ b/docs/deprecated/distutils-legacy.rst @@ -0,0 +1,47 @@ +Porting from Distutils +====================== + +Setuptools and the PyPA have a `stated goal `_ to make Setuptools the reference API for distutils. + +Since the 60.0.0 release, Setuptools includes a local, vendored copy of distutils (from late copies of CPython) that is enabled by default. To disable the use of this copy of distutils when invoking setuptools, set the environment variable: + + SETUPTOOLS_USE_DISTUTILS=stdlib + +.. warning:: + Please note that this also affects how ``distutils.cfg`` files inside stdlib's ``distutils`` + package directory are processed. + Unless ``SETUPTOOLS_USE_DISTUTILS=stdlib``, they will have no effect on the build process. + + You can still use a global user config file, ``~/.pydistutils.cfg`` (POSIX) or ``%USERPROFILE%/pydistutils.cfg`` (Windows), + or use the environment variable :ref:`DIST_EXTRA_CONFIG ` to point to another + supplementary configuration file. + + +Prefer Setuptools +----------------- + +As Distutils is deprecated, any usage of functions or objects from distutils is similarly discouraged, and Setuptools aims to replace or deprecate all such uses. This section describes the recommended replacements. + +``distutils.core.setup`` → ``setuptools.setup`` + +``distutils.cmd.Command`` or ``distutils.core.Command`` → ``setuptools.Command`` + +``distutils.command.{build_clib,build_ext,build_py,sdist}`` → ``setuptools.command.*`` + +``distutils.dep_util`` → ``setuptools.modified`` + +``distutils.log`` → :mod:`logging` (standard library) + +``distutils.version.*`` → :doc:`packaging.version.* ` + +``distutils.errors.*`` → ``setuptools.errors.*`` [#errors]_ + + +Migration advice is also provided by :pep:`PEP 632 <632#migration-advice>`. + +If a project relies on uses of ``distutils`` that do not have a suitable replacement above, please search the `Setuptools issue tracker `_ and file a request, describing the use-case so that Setuptools' maintainers can investigate. Please provide enough detail to help the maintainers understand how distutils is used, what value it provides, and why that behavior should be supported. + + +.. [#errors] Please notice errors related to the command line usage of + ``setup.py``, such as ``DistutilsArgError``, are intentionally not exposed + by setuptools, since this is considered a deprecated practice. diff --git a/docs/deprecated/distutils/_setuptools_disclaimer.rst b/docs/deprecated/distutils/_setuptools_disclaimer.rst new file mode 100644 index 0000000000..628c2e4f65 --- /dev/null +++ b/docs/deprecated/distutils/_setuptools_disclaimer.rst @@ -0,0 +1,5 @@ +.. note:: + + This document is being retained solely until the ``setuptools`` documentation + at https://setuptools.pypa.io/en/latest/setuptools.html + independently covers all of the relevant information currently included here. diff --git a/docs/deprecated/distutils/apiref.rst b/docs/deprecated/distutils/apiref.rst new file mode 100644 index 0000000000..de689edfa4 --- /dev/null +++ b/docs/deprecated/distutils/apiref.rst @@ -0,0 +1,2016 @@ +.. _api-reference: + +************* +API Reference +************* + +.. seealso:: + + `New and changed setup.py arguments in setuptools`_ + The ``setuptools`` project adds new capabilities to the ``setup`` function + and other APIs, makes the API consistent across different Python versions, + and is hence recommended over using ``distutils`` directly. + +.. _New and changed setup.py arguments in setuptools: https://setuptools.pypa.io/en/latest/setuptools.html#new-and-changed-setup-keywords + +.. include:: ./_setuptools_disclaimer.rst + +:mod:`distutils.core` --- Core Distutils functionality +====================================================== + +.. module:: distutils.core + :synopsis: The core Distutils functionality + + +The :mod:`distutils.core` module is the only module that needs to be installed +to use the Distutils. It provides the :func:`setup` (which is called from the +setup script). Indirectly provides the :class:`distutils.dist.Distribution` and +:class:`distutils.cmd.Command` class. + + +.. function:: setup(arguments) + + The basic do-everything function that does most everything you could ever ask + for from a Distutils method. + + The setup function takes a large number of arguments. These are laid out in the + following table. + + .. tabularcolumns:: |l|L|L| + + +--------------------+--------------------------------+-------------------------------------------------------------+ + | argument name | value | type | + +====================+================================+=============================================================+ + | *name* | The name of the package | a string | + +--------------------+--------------------------------+-------------------------------------------------------------+ + | *version* | The version number of the | a string | + | | package; see | | + | | :mod:`distutils.version` | | + +--------------------+--------------------------------+-------------------------------------------------------------+ + | *description* | A single line describing the | a string | + | | package | | + +--------------------+--------------------------------+-------------------------------------------------------------+ + | *long_description* | Longer description of the | a string | + | | package | | + +--------------------+--------------------------------+-------------------------------------------------------------+ + | *author* | The name of the package author | a string | + +--------------------+--------------------------------+-------------------------------------------------------------+ + | *author_email* | The email address of the | a string | + | | package author | | + +--------------------+--------------------------------+-------------------------------------------------------------+ + | *maintainer* | The name of the current | a string | + | | maintainer, if different from | | + | | the author. Note that if | | + | | the maintainer is provided, | | + | | distutils will use it as the | | + | | author in :file:`PKG-INFO` | | + +--------------------+--------------------------------+-------------------------------------------------------------+ + | *maintainer_email* | The email address of the | a string | + | | current maintainer, if | | + | | different from the author | | + +--------------------+--------------------------------+-------------------------------------------------------------+ + | *url* | A URL for the package | a string | + | | (homepage) | | + +--------------------+--------------------------------+-------------------------------------------------------------+ + | *download_url* | A URL to download the package | a string | + +--------------------+--------------------------------+-------------------------------------------------------------+ + | *packages* | A list of Python packages that | a list of strings | + | | distutils will manipulate | | + +--------------------+--------------------------------+-------------------------------------------------------------+ + | *py_modules* | A list of Python modules that | a list of strings | + | | distutils will manipulate | | + +--------------------+--------------------------------+-------------------------------------------------------------+ + | *scripts* | A list of standalone script | a list of strings | + | | files to be built and | | + | | installed | | + +--------------------+--------------------------------+-------------------------------------------------------------+ + | *ext_modules* | A list of Python extensions to | a list of instances of | + | | be built | :class:`distutils.core.Extension` | + +--------------------+--------------------------------+-------------------------------------------------------------+ + | *classifiers* | A list of categories for the | a list of strings; valid classifiers are listed on `PyPI | + | | package | `_. | + +--------------------+--------------------------------+-------------------------------------------------------------+ + | *distclass* | the :class:`Distribution` | a subclass of | + | | class to use | :class:`distutils.core.Distribution` | + +--------------------+--------------------------------+-------------------------------------------------------------+ + | *script_name* | The name of the setup.py | a string | + | | script - defaults to | | + | | ``sys.argv[0]`` | | + +--------------------+--------------------------------+-------------------------------------------------------------+ + | *script_args* | Arguments to supply to the | a list of strings | + | | setup script | | + +--------------------+--------------------------------+-------------------------------------------------------------+ + | *options* | default options for the setup | a dictionary | + | | script | | + +--------------------+--------------------------------+-------------------------------------------------------------+ + | *license* | The license for the package | a string | + +--------------------+--------------------------------+-------------------------------------------------------------+ + | *keywords* | Descriptive meta-data, see | a list of strings or a comma-separated string | + | | :pep:`314` | | + +--------------------+--------------------------------+-------------------------------------------------------------+ + | *platforms* | | a list of strings or a comma-separated string | + +--------------------+--------------------------------+-------------------------------------------------------------+ + | *cmdclass* | A mapping of command names to | a dictionary | + | | :class:`Command` subclasses | | + +--------------------+--------------------------------+-------------------------------------------------------------+ + | *data_files* | A list of data files to | a list | + | | install | | + +--------------------+--------------------------------+-------------------------------------------------------------+ + | *package_dir* | A mapping of package to | a dictionary | + | | directory names | | + +--------------------+--------------------------------+-------------------------------------------------------------+ + + + +.. function:: run_setup(script_name[, script_args=None, stop_after='run']) + + Run a setup script in a somewhat controlled environment, and return the + :class:`distutils.dist.Distribution` instance that drives things. This is + useful if you need to find out the distribution meta-data (passed as keyword + args from *script* to :func:`setup`), or the contents of the config files or + command-line. + + *script_name* is a file that will be read and run with :func:`exec`. ``sys.argv[0]`` + will be replaced with *script* for the duration of the call. *script_args* is a + list of strings; if supplied, ``sys.argv[1:]`` will be replaced by *script_args* + for the duration of the call. + + *stop_after* tells :func:`setup` when to stop processing; possible values: + + .. tabularcolumns:: |l|L| + + +---------------+---------------------------------------------+ + | value | description | + +===============+=============================================+ + | *init* | Stop after the :class:`Distribution` | + | | instance has been created and populated | + | | with the keyword arguments to :func:`setup` | + +---------------+---------------------------------------------+ + | *config* | Stop after config files have been parsed | + | | (and their data stored in the | + | | :class:`Distribution` instance) | + +---------------+---------------------------------------------+ + | *commandline* | Stop after the command-line | + | | (``sys.argv[1:]`` or *script_args*) have | + | | been parsed (and the data stored in the | + | | :class:`Distribution` instance.) | + +---------------+---------------------------------------------+ + | *run* | Stop after all commands have been run (the | + | | same as if :func:`setup` had been called | + | | in the usual way). This is the default | + | | value. | + +---------------+---------------------------------------------+ + +In addition, the :mod:`distutils.core` module exposed a number of classes that +live elsewhere. + +* :class:`~distutils.extension.Extension` from :mod:`distutils.extension` + +* :class:`~distutils.cmd.Command` from :mod:`distutils.cmd` + +* :class:`~distutils.dist.Distribution` from :mod:`distutils.dist` + +A short description of each of these follows, but see the relevant module for +the full reference. + + +.. class:: Extension + + The Extension class describes a single C or C++ extension module in a setup + script. It accepts the following keyword arguments in its constructor: + + .. tabularcolumns:: |l|L|l| + + +------------------------+--------------------------------+---------------------------+ + | argument name | value | type | + +========================+================================+===========================+ + | *name* | the full name of the | a string | + | | extension, including any | | + | | packages --- ie. *not* a | | + | | filename or pathname, but | | + | | Python dotted name | | + +------------------------+--------------------------------+---------------------------+ + | *sources* | list of source filenames, | a list of strings | + | | relative to the distribution | | + | | root (where the setup script | | + | | lives), in Unix form | | + | | (slash-separated) for | | + | | portability. | | + | | Source files may be C, C++, | | + | | SWIG (.i), platform-specific | | + | | resource files, or whatever | | + | | else is recognized by the | | + | | :command:`build_ext` command | | + | | as source for a Python | | + | | extension. | | + +------------------------+--------------------------------+---------------------------+ + | *include_dirs* | list of directories to search | a list of strings | + | | for C/C++ header files (in | | + | | Unix form for portability) | | + +------------------------+--------------------------------+---------------------------+ + | *define_macros* | list of macros to define; each | a list of tuples | + | | macro is defined using a | | + | | 2-tuple ``(name, value)``, | | + | | where *value* is | | + | | either the string to define it | | + | | to or ``None`` to define it | | + | | without a particular value | | + | | (equivalent of ``#define FOO`` | | + | | in source or :option:`!-DFOO` | | + | | on Unix C compiler command | | + | | line) | | + +------------------------+--------------------------------+---------------------------+ + | *undef_macros* | list of macros to undefine | a list of strings | + | | explicitly | | + +------------------------+--------------------------------+---------------------------+ + | *library_dirs* | list of directories to search | a list of strings | + | | for C/C++ libraries at link | | + | | time | | + +------------------------+--------------------------------+---------------------------+ + | *libraries* | list of library names (not | a list of strings | + | | filenames or paths) to link | | + | | against | | + +------------------------+--------------------------------+---------------------------+ + | *runtime_library_dirs* | list of directories to search | a list of strings | + | | for C/C++ libraries at run | | + | | time (for shared extensions, | | + | | this is when the extension is | | + | | loaded) | | + +------------------------+--------------------------------+---------------------------+ + | *extra_objects* | list of extra files to link | a list of strings | + | | with (eg. object files not | | + | | implied by 'sources', static | | + | | library that must be | | + | | explicitly specified, binary | | + | | resource files, etc.) | | + +------------------------+--------------------------------+---------------------------+ + | *extra_compile_args* | any extra platform- and | a list of strings | + | | compiler-specific information | | + | | to use when compiling the | | + | | source files in 'sources'. For | | + | | platforms and compilers where | | + | | a command line makes sense, | | + | | this is typically a list of | | + | | command-line arguments, but | | + | | for other platforms it could | | + | | be anything. | | + +------------------------+--------------------------------+---------------------------+ + | *extra_link_args* | any extra platform- and | a list of strings | + | | compiler-specific information | | + | | to use when linking object | | + | | files together to create the | | + | | extension (or to create a new | | + | | static Python interpreter). | | + | | Similar interpretation as for | | + | | 'extra_compile_args'. | | + +------------------------+--------------------------------+---------------------------+ + | *export_symbols* | list of symbols to be exported | a list of strings | + | | from a shared extension. Not | | + | | used on all platforms, and not | | + | | generally necessary for Python | | + | | extensions, which typically | | + | | export exactly one symbol: | | + | | ``init`` + extension_name. | | + +------------------------+--------------------------------+---------------------------+ + | *depends* | list of files that the | a list of strings | + | | extension depends on | | + +------------------------+--------------------------------+---------------------------+ + | *language* | extension language (i.e. | a string | + | | ``'c'``, ``'c++'``, | | + | | ``'objc'``). Will be detected | | + | | from the source extensions if | | + | | not provided. | | + +------------------------+--------------------------------+---------------------------+ + | *optional* | specifies that a build failure | a boolean | + | | in the extension should not | | + | | abort the build process, but | | + | | simply skip the extension. | | + +------------------------+--------------------------------+---------------------------+ + + .. versionchanged:: 3.8 + + On Unix, C extensions are no longer linked to libpython except on + Android and Cygwin. + + +.. class:: Distribution + + A :class:`Distribution` describes how to build, install and package up a Python + software package. + + See the :func:`setup` function for a list of keyword arguments accepted by the + Distribution constructor. :func:`setup` creates a Distribution instance. + + .. versionchanged:: 3.7 + :class:`~distutils.core.Distribution` now warns if ``classifiers``, + ``keywords`` and ``platforms`` fields are not specified as a list or + a string. + +.. class:: Command + + A :class:`Command` class (or rather, an instance of one of its subclasses) + implement a single distutils command. + + +:mod:`distutils.ccompiler` --- CCompiler base class +=================================================== + +.. module:: distutils.ccompiler + :synopsis: Abstract CCompiler class + + +This module provides the abstract base class for the :class:`CCompiler` +classes. A :class:`CCompiler` instance can be used for all the compile and +link steps needed to build a single project. Methods are provided to set +options for the compiler --- macro definitions, include directories, link path, +libraries and the like. + +This module provides the following functions. + + +.. function:: gen_lib_options(compiler, library_dirs, runtime_library_dirs, libraries) + + Generate linker options for searching library directories and linking with + specific libraries. *libraries* and *library_dirs* are, respectively, lists of + library names (not filenames!) and search directories. Returns a list of + command-line options suitable for use with some compiler (depending on the two + format strings passed in). + + +.. function:: gen_preprocess_options(macros, include_dirs) + + Generate C pre-processor options (:option:`!-D`, :option:`!-U`, :option:`!-I`) as + used by at least two types of compilers: the typical Unix compiler and Visual + C++. *macros* is the usual thing, a list of 1- or 2-tuples, where ``(name,)`` + means undefine (:option:`!-U`) macro *name*, and ``(name, value)`` means define + (:option:`!-D`) macro *name* to *value*. *include_dirs* is just a list of + directory names to be added to the header file search path (:option:`!-I`). + Returns a list of command-line options suitable for either Unix compilers or + Visual C++. + + +.. function:: get_default_compiler(osname, platform) + + Determine the default compiler to use for the given platform. + + *osname* should be one of the standard Python OS names (i.e. the ones returned + by ``os.name``) and *platform* the common value returned by ``sys.platform`` for + the platform in question. + + The default values are ``os.name`` and ``sys.platform`` in case the parameters + are not given. + + +.. function:: new_compiler(plat=None, compiler=None, verbose=False, dry_run=False, force=False) + + Factory function to generate an instance of some CCompiler subclass for the + supplied platform/compiler combination. *plat* defaults to ``os.name`` (eg. + ``'posix'``, ``'nt'``), and *compiler* defaults to the default compiler for + that platform. Currently only ``'posix'`` and ``'nt'`` are supported, and the + default compilers are "traditional Unix interface" (:class:`UnixCCompiler` + class) and Visual C++ (:class:`MSVCCompiler` class). Note that it's perfectly + possible to ask for a Unix compiler object under Windows, and a Microsoft + compiler object under Unix---if you supply a value for *compiler*, *plat* is + ignored. + + .. % Is the posix/nt only thing still true? Mac OS X seems to work, and + .. % returns a UnixCCompiler instance. How to document this... hmm. + + +.. function:: show_compilers() + + Print list of available compilers (used by the :option:`!--help-compiler` options + to :command:`build`, :command:`build_ext`, :command:`build_clib`). + + +.. class:: CCompiler([verbose=False, dry_run=False, force=False]) + + The abstract base class :class:`CCompiler` defines the interface that must be + implemented by real compiler classes. The class also has some utility methods + used by several compiler classes. + + The basic idea behind a compiler abstraction class is that each instance can be + used for all the compile/link steps in building a single project. Thus, + attributes common to all of those compile and link steps --- include + directories, macros to define, libraries to link against, etc. --- are + attributes of the compiler instance. To allow for variability in how individual + files are treated, most of those attributes may be varied on a per-compilation + or per-link basis. + + The constructor for each subclass creates an instance of the Compiler object. + Flags are *verbose* (show verbose output), *dry_run* (don't actually execute the + steps) and *force* (rebuild everything, regardless of dependencies). All of + these flags default to ``0`` (off). Note that you probably don't want to + instantiate :class:`CCompiler` or one of its subclasses directly - use the + :func:`distutils.CCompiler.new_compiler` factory function instead. + + The following methods allow you to manually alter compiler options for the + instance of the Compiler class. + + + .. method:: CCompiler.add_include_dir(dir) + + Add *dir* to the list of directories that will be searched for header files. + The compiler is instructed to search directories in the order in which they are + supplied by successive calls to :meth:`add_include_dir`. + + + .. method:: CCompiler.set_include_dirs(dirs) + + Set the list of directories that will be searched to *dirs* (a list of strings). + Overrides any preceding calls to :meth:`add_include_dir`; subsequent calls to + :meth:`add_include_dir` add to the list passed to :meth:`set_include_dirs`. + This does not affect any list of standard include directories that the compiler + may search by default. + + + .. method:: CCompiler.add_library(libname) + + Add *libname* to the list of libraries that will be included in all links driven + by this compiler object. Note that *libname* should \*not\* be the name of a + file containing a library, but the name of the library itself: the actual + filename will be inferred by the linker, the compiler, or the compiler class + (depending on the platform). + + The linker will be instructed to link against libraries in the order they were + supplied to :meth:`add_library` and/or :meth:`set_libraries`. It is perfectly + valid to duplicate library names; the linker will be instructed to link against + libraries as many times as they are mentioned. + + + .. method:: CCompiler.set_libraries(libnames) + + Set the list of libraries to be included in all links driven by this compiler + object to *libnames* (a list of strings). This does not affect any standard + system libraries that the linker may include by default. + + + .. method:: CCompiler.add_library_dir(dir) + + Add *dir* to the list of directories that will be searched for libraries + specified to :meth:`add_library` and :meth:`set_libraries`. The linker will be + instructed to search for libraries in the order they are supplied to + :meth:`add_library_dir` and/or :meth:`set_library_dirs`. + + + .. method:: CCompiler.set_library_dirs(dirs) + + Set the list of library search directories to *dirs* (a list of strings). This + does not affect any standard library search path that the linker may search by + default. + + + .. method:: CCompiler.add_runtime_library_dir(dir) + + Add *dir* to the list of directories that will be searched for shared libraries + at runtime. + + + .. method:: CCompiler.set_runtime_library_dirs(dirs) + + Set the list of directories to search for shared libraries at runtime to *dirs* + (a list of strings). This does not affect any standard search path that the + runtime linker may search by default. + + + .. method:: CCompiler.define_macro(name[, value=None]) + + Define a preprocessor macro for all compilations driven by this compiler object. + The optional parameter *value* should be a string; if it is not supplied, then + the macro will be defined without an explicit value and the exact outcome + depends on the compiler used. + + .. XXX true? does ANSI say anything about this? + + + .. method:: CCompiler.undefine_macro(name) + + Undefine a preprocessor macro for all compilations driven by this compiler + object. If the same macro is defined by :meth:`define_macro` and + undefined by :meth:`undefine_macro` the last call takes precedence + (including multiple redefinitions or undefinitions). If the macro is + redefined/undefined on a per-compilation basis (ie. in the call to + :meth:`compile`), then that takes precedence. + + + .. method:: CCompiler.add_link_object(object) + + Add *object* to the list of object files (or analogues, such as explicitly named + library files or the output of "resource compilers") to be included in every + link driven by this compiler object. + + + .. method:: CCompiler.set_link_objects(objects) + + Set the list of object files (or analogues) to be included in every link to + *objects*. This does not affect any standard object files that the linker may + include by default (such as system libraries). + + The following methods implement methods for autodetection of compiler options, + providing some functionality similar to GNU :program:`autoconf`. + + + .. method:: CCompiler.detect_language(sources) + + Detect the language of a given file, or list of files. Uses the instance + attributes :attr:`~CCompiler.language_map` (a dictionary), and :attr:`~CCompiler.language_order` (a + list) to do the job. + + + .. method:: CCompiler.find_library_file(dirs, lib[, debug=False]) + + Search the specified list of directories for a static or shared library file + *lib* and return the full path to that file. If *debug* is true, look for a + debugging version (if that makes sense on the current platform). Return + ``None`` if *lib* wasn't found in any of the specified directories. + + + .. method:: CCompiler.has_function(funcname [, includes=None, include_dirs=None, libraries=None, library_dirs=None]) + + Return a boolean indicating whether *funcname* is supported on the current + platform. The optional arguments can be used to augment the compilation + environment by providing additional include files and paths and libraries and + paths. + + + .. method:: CCompiler.library_dir_option(dir) + + Return the compiler option to add *dir* to the list of directories searched for + libraries. + + + .. method:: CCompiler.library_option(lib) + + Return the compiler option to add *lib* to the list of libraries linked into the + shared library or executable. + + + .. method:: CCompiler.runtime_library_dir_option(dir) + + Return the compiler option to add *dir* to the list of directories searched for + runtime libraries. + + + .. method:: CCompiler.set_executables(**args) + + Define the executables (and options for them) that will be run to perform the + various stages of compilation. The exact set of executables that may be + specified here depends on the compiler class (via the 'executables' class + attribute), but most will have: + + +--------------+------------------------------------------+ + | attribute | description | + +==============+==========================================+ + | *compiler* | the C/C++ compiler | + +--------------+------------------------------------------+ + | *linker_so* | linker used to create shared objects and | + | | libraries | + +--------------+------------------------------------------+ + | *linker_exe* | linker used to create binary executables | + +--------------+------------------------------------------+ + | *archiver* | static library creator | + +--------------+------------------------------------------+ + + On platforms with a command-line (Unix, DOS/Windows), each of these is a string + that will be split into executable name and (optional) list of arguments. + (Splitting the string is done similarly to how Unix shells operate: words are + delimited by spaces, but quotes and backslashes can override this. See + :func:`distutils.util.split_quoted`.) + + The following methods invoke stages in the build process. + + + .. method:: CCompiler.compile(sources[, output_dir=None, macros=None, include_dirs=None, debug=False, extra_preargs=None, extra_postargs=None, depends=None]) + + Compile one or more source files. Generates object files (e.g. transforms a + :file:`.c` file to a :file:`.o` file.) + + *sources* must be a list of filenames, most likely C/C++ files, but in reality + anything that can be handled by a particular compiler and compiler class (eg. + :class:`MSVCCompiler` can handle resource files in *sources*). Return a list of + object filenames, one per source filename in *sources*. Depending on the + implementation, not all source files will necessarily be compiled, but all + corresponding object filenames will be returned. + + If *output_dir* is given, object files will be put under it, while retaining + their original path component. That is, :file:`foo/bar.c` normally compiles to + :file:`foo/bar.o` (for a Unix implementation); if *output_dir* is *build*, then + it would compile to :file:`build/foo/bar.o`. + + *macros*, if given, must be a list of macro definitions. A macro definition is + either a ``(name, value)`` 2-tuple or a ``(name,)`` 1-tuple. The former defines + a macro; if the value is ``None``, the macro is defined without an explicit + value. The 1-tuple case undefines a macro. Later + definitions/redefinitions/undefinitions take precedence. + + *include_dirs*, if given, must be a list of strings, the directories to add to + the default include file search path for this compilation only. + + *debug* is a boolean; if true, the compiler will be instructed to output debug + symbols in (or alongside) the object file(s). + + *extra_preargs* and *extra_postargs* are implementation-dependent. On platforms + that have the notion of a command-line (e.g. Unix, DOS/Windows), they are most + likely lists of strings: extra command-line arguments to prepend/append to the + compiler command line. On other platforms, consult the implementation class + documentation. In any event, they are intended as an escape hatch for those + occasions when the abstract compiler framework doesn't cut the mustard. + + *depends*, if given, is a list of filenames that all targets depend on. If a + source file is older than any file in depends, then the source file will be + recompiled. This supports dependency tracking, but only at a coarse + granularity. + + Raises :exc:`CompileError` on failure. + + + .. method:: CCompiler.create_static_lib(objects, output_libname[, output_dir=None, debug=False, target_lang=None]) + + Link a bunch of stuff together to create a static library file. The "bunch of + stuff" consists of the list of object files supplied as *objects*, the extra + object files supplied to :meth:`add_link_object` and/or + :meth:`set_link_objects`, the libraries supplied to :meth:`add_library` and/or + :meth:`set_libraries`, and the libraries supplied as *libraries* (if any). + + *output_libname* should be a library name, not a filename; the filename will be + inferred from the library name. *output_dir* is the directory where the library + file will be put. + + .. XXX defaults to what? + + *debug* is a boolean; if true, debugging information will be included in the + library (note that on most platforms, it is the compile step where this matters: + the *debug* flag is included here just for consistency). + + *target_lang* is the target language for which the given objects are being + compiled. This allows specific linkage time treatment of certain languages. + + Raises :exc:`LibError` on failure. + + + .. method:: CCompiler.link(target_desc, objects, output_filename[, output_dir=None, libraries=None, library_dirs=None, runtime_library_dirs=None, export_symbols=None, debug=False, extra_preargs=None, extra_postargs=None, build_temp=None, target_lang=None]) + + Link a bunch of stuff together to create an executable or shared library file. + + The "bunch of stuff" consists of the list of object files supplied as *objects*. + *output_filename* should be a filename. If *output_dir* is supplied, + *output_filename* is relative to it (i.e. *output_filename* can provide + directory components if needed). + + *libraries* is a list of libraries to link against. These are library names, + not filenames, since they're translated into filenames in a platform-specific + way (eg. *foo* becomes :file:`libfoo.a` on Unix and :file:`foo.lib` on + DOS/Windows). However, they can include a directory component, which means the + linker will look in that specific directory rather than searching all the normal + locations. + + *library_dirs*, if supplied, should be a list of directories to search for + libraries that were specified as bare library names (ie. no directory + component). These are on top of the system default and those supplied to + :meth:`add_library_dir` and/or :meth:`set_library_dirs`. *runtime_library_dirs* + is a list of directories that will be embedded into the shared library and used + to search for other shared libraries that \*it\* depends on at run-time. (This + may only be relevant on Unix.) + + *export_symbols* is a list of symbols that the shared library will export. + (This appears to be relevant only on Windows.) + + *debug* is as for :meth:`compile` and :meth:`create_static_lib`, with the + slight distinction that it actually matters on most platforms (as opposed to + :meth:`create_static_lib`, which includes a *debug* flag mostly for form's + sake). + + *extra_preargs* and *extra_postargs* are as for :meth:`compile` (except of + course that they supply command-line arguments for the particular linker being + used). + + *target_lang* is the target language for which the given objects are being + compiled. This allows specific linkage time treatment of certain languages. + + Raises :exc:`LinkError` on failure. + + + .. method:: CCompiler.link_executable(objects, output_progname[, output_dir=None, libraries=None, library_dirs=None, runtime_library_dirs=None, debug=False, extra_preargs=None, extra_postargs=None, target_lang=None]) + + Link an executable. *output_progname* is the name of the file executable, while + *objects* are a list of object filenames to link in. Other arguments are as for + the :meth:`link` method. + + + .. method:: CCompiler.link_shared_lib(objects, output_libname[, output_dir=None, libraries=None, library_dirs=None, runtime_library_dirs=None, export_symbols=None, debug=False, extra_preargs=None, extra_postargs=None, build_temp=None, target_lang=None]) + + Link a shared library. *output_libname* is the name of the output library, + while *objects* is a list of object filenames to link in. Other arguments are + as for the :meth:`link` method. + + + .. method:: CCompiler.link_shared_object(objects, output_filename[, output_dir=None, libraries=None, library_dirs=None, runtime_library_dirs=None, export_symbols=None, debug=False, extra_preargs=None, extra_postargs=None, build_temp=None, target_lang=None]) + + Link a shared object. *output_filename* is the name of the shared object that + will be created, while *objects* is a list of object filenames to link in. + Other arguments are as for the :meth:`link` method. + + + .. method:: CCompiler.preprocess(source[, output_file=None, macros=None, include_dirs=None, extra_preargs=None, extra_postargs=None]) + + Preprocess a single C/C++ source file, named in *source*. Output will be written + to file named *output_file*, or *stdout* if *output_file* not supplied. + *macros* is a list of macro definitions as for :meth:`compile`, which will + augment the macros set with :meth:`define_macro` and :meth:`undefine_macro`. + *include_dirs* is a list of directory names that will be added to the default + list, in the same way as :meth:`add_include_dir`. + + Raises :exc:`PreprocessError` on failure. + + The following utility methods are defined by the :class:`CCompiler` class, for + use by the various concrete subclasses. + + + .. method:: CCompiler.executable_filename(basename[, strip_dir=False, output_dir='']) + + Returns the filename of the executable for the given *basename*. Typically for + non-Windows platforms this is the same as the basename, while Windows will get + a :file:`.exe` added. + + + .. method:: CCompiler.library_filename(libname[, lib_type='static', strip_dir=False, output_dir='']) + + Returns the filename for the given library name on the current platform. On Unix + a library with *lib_type* of ``'static'`` will typically be of the form + :file:`liblibname.a`, while a *lib_type* of ``'dynamic'`` will be of the form + :file:`liblibname.so`. + + + .. method:: CCompiler.object_filenames(source_filenames[, strip_dir=False, output_dir='']) + + Returns the name of the object files for the given source files. + *source_filenames* should be a list of filenames. + + + .. method:: CCompiler.shared_object_filename(basename[, strip_dir=False, output_dir='']) + + Returns the name of a shared object file for the given file name *basename*. + + + .. method:: CCompiler.execute(func, args[, msg=None, level=1]) + + Invokes :func:`distutils.util.execute`. This method invokes a Python function + *func* with the given arguments *args*, after logging and taking into account + the *dry_run* flag. + + + .. method:: CCompiler.spawn(cmd) + + Invokes :func:`distutils.spawn.spawn`. This invokes an external process to run + the given command. + + + .. method:: CCompiler.mkpath(name[, mode=511]) + + Invokes :func:`distutils.dir_util.mkpath`. This creates a directory and any + missing ancestor directories. + + + .. method:: CCompiler.move_file(src, dst) + + Invokes :meth:`distutils.file_util.move_file`. Renames *src* to *dst*. + + + .. method:: CCompiler.announce(msg[, level=1]) + + Write a message using :func:`distutils.log.debug`. + + + .. method:: CCompiler.warn(msg) + + Write a warning message *msg* to standard error. + + + .. method:: CCompiler.debug_print(msg) + + If the *debug* flag is set on this :class:`CCompiler` instance, print *msg* to + standard output, otherwise do nothing. + +.. % \subsection{Compiler-specific modules} +.. % +.. % The following modules implement concrete subclasses of the abstract +.. % \class{CCompiler} class. They should not be instantiated directly, but should +.. % be created using \function{distutils.ccompiler.new_compiler()} factory +.. % function. + + +:mod:`distutils.unixccompiler` --- Unix C Compiler +================================================== + +.. module:: distutils.unixccompiler + :synopsis: UNIX C Compiler + + +This module provides the :class:`UnixCCompiler` class, a subclass of +:class:`CCompiler` that handles the typical Unix-style command-line C compiler: + +* macros defined with :option:`!-Dname[=value]` + +* macros undefined with :option:`!-Uname` + +* include search directories specified with :option:`!-Idir` + +* libraries specified with :option:`!-llib` + +* library search directories specified with :option:`!-Ldir` + +* compile handled by :program:`cc` (or similar) executable with :option:`!-c` + option: compiles :file:`.c` to :file:`.o` + +* link static library handled by :program:`ar` command (possibly with + :program:`ranlib`) + +* link shared library handled by :program:`cc` :option:`!-shared` + + +:mod:`distutils.msvccompiler` --- Microsoft Compiler +==================================================== + +.. module:: distutils.msvccompiler + :synopsis: Microsoft Compiler + +.. XXX: This is *waaaaay* out of date! + +This module provides :class:`MSVCCompiler`, an implementation of the abstract +:class:`CCompiler` class for Microsoft Visual Studio. Typically, extension +modules need to be compiled with the same compiler that was used to compile +Python. For Python 2.3 and earlier, the compiler was Visual Studio 6. For Python +2.4 and 2.5, the compiler is Visual Studio .NET 2003. + +:class:`MSVCCompiler` will normally choose the right compiler, linker etc. on +its own. To override this choice, the environment variables *DISTUTILS_USE_SDK* +and *MSSdk* must be both set. *MSSdk* indicates that the current environment has +been setup by the SDK's ``SetEnv.Cmd`` script, or that the environment variables +had been registered when the SDK was installed; *DISTUTILS_USE_SDK* indicates +that the distutils user has made an explicit choice to override the compiler +selection by :class:`MSVCCompiler`. + + +:mod:`distutils.bcppcompiler` --- Borland Compiler +================================================== + +.. module:: distutils.bcppcompiler + + +This module provides :class:`BorlandCCompiler`, a subclass of the abstract +:class:`CCompiler` class for the Borland C++ compiler. + + +:mod:`distutils.cygwinccompiler` --- Cygwin Compiler +==================================================== + +.. module:: distutils.cygwinccompiler + + +This module provides the :class:`CygwinCCompiler` class, a subclass of +:class:`UnixCCompiler` that handles the Cygwin port of the GNU C compiler to +Windows. It also contains the Mingw32CCompiler class which handles the mingw32 +port of GCC (same as cygwin in no-cygwin mode). + + +:mod:`distutils.archive_util` --- Archiving utilities +====================================================== + +.. module:: distutils.archive_util + :synopsis: Utility functions for creating archive files (tarballs, zip files, ...) + + +This module provides a few functions for creating archive files, such as +tarballs or zipfiles. + + +.. function:: make_archive(base_name, format[, root_dir=None, base_dir=None, verbose=False, dry_run=False]) + + Create an archive file (eg. ``zip`` or ``tar``). *base_name* is the name of + the file to create, minus any format-specific extension; *format* is the + archive format: one of ``zip``, ``tar``, ``gztar``, ``bztar``, ``xztar``, or + ``ztar``. *root_dir* is a directory that will be the root directory of the + archive; ie. we typically ``chdir`` into *root_dir* before creating the + archive. *base_dir* is the directory where we start archiving from; ie. + *base_dir* will be the common prefix of all files and directories in the + archive. *root_dir* and *base_dir* both default to the current directory. + Returns the name of the archive file. + + .. versionchanged:: 3.5 + Added support for the ``xztar`` format. + + +.. function:: make_tarball(base_name, base_dir[, compress='gzip', verbose=False, dry_run=False]) + + 'Create an (optional compressed) archive as a tar file from all files in and + under *base_dir*. *compress* must be ``'gzip'`` (the default), + ``'bzip2'``, ``'xz'``, ``'compress'``, or ``None``. For the ``'compress'`` + method the compression utility named by :program:`compress` must be on the + default program search path, so this is probably Unix-specific. The output + tar file will be named :file:`base_dir.tar`, possibly plus the appropriate + compression extension (``.gz``, ``.bz2``, ``.xz`` or ``.Z``). Return the + output filename. + + .. versionchanged:: 3.5 + Added support for the ``xz`` compression. + + +.. function:: make_zipfile(base_name, base_dir[, verbose=False, dry_run=False]) + + Create a zip file from all files in and under *base_dir*. The output zip file + will be named *base_name* + :file:`.zip`. Uses either the :mod:`zipfile` Python + module (if available) or the InfoZIP :file:`zip` utility (if installed and + found on the default search path). If neither tool is available, raises + :exc:`DistutilsExecError`. Returns the name of the output zip file. + + +:mod:`distutils.dep_util` --- Dependency checking +================================================= + +.. module:: distutils.dep_util + :synopsis: Utility functions for simple dependency checking + + +This module provides functions for performing simple, timestamp-based +dependency of files and groups of files; also, functions based entirely on such +timestamp dependency analysis. + + +.. function:: newer(source, target) + + Return true if *source* exists and is more recently modified than *target*, or + if *source* exists and *target* doesn't. Return false if both exist and *target* + is the same age or newer than *source*. Raise :exc:`DistutilsFileError` if + *source* does not exist. + + +.. function:: newer_pairwise(sources, targets) + + Walk two filename lists in parallel, testing if each source is newer than its + corresponding target. Return a pair of lists (*sources*, *targets*) where + source is newer than target, according to the semantics of :func:`newer`. + + .. % % equivalent to a listcomp... + + +.. function:: newer_group(sources, target[, missing='error']) + + Return true if *target* is out-of-date with respect to any file listed in + *sources*. In other words, if *target* exists and is newer than every file in + *sources*, return false; otherwise return true. *missing* controls what we do + when a source file is missing; the default (``'error'``) is to blow up with an + :exc:`OSError` from inside :func:`os.stat`; if it is ``'ignore'``, we silently + drop any missing source files; if it is ``'newer'``, any missing source files + make us assume that *target* is out-of-date (this is handy in "dry-run" mode: + it'll make you pretend to carry out commands that wouldn't work because inputs + are missing, but that doesn't matter because you're not actually going to run + the commands). + + +:mod:`distutils.dir_util` --- Directory tree operations +======================================================= + +.. module:: distutils.dir_util + :synopsis: Utility functions for operating on directories and directory trees + + +This module provides functions for operating on directories and trees of +directories. + + +.. function:: mkpath(name[, mode=0o777, verbose=False, dry_run=False]) + + Create a directory and any missing ancestor directories. If the directory + already exists (or if *name* is the empty string, which means the current + directory, which of course exists), then do nothing. Raise + :exc:`DistutilsFileError` if unable to create some directory along the way (eg. + some sub-path exists, but is a file rather than a directory). If *verbose* is + true, print a one-line summary of each mkdir to stdout. Return the list of + directories actually created. + + +.. function:: create_tree(base_dir, files[, mode=0o777, verbose=False, dry_run=False]) + + Create all the empty directories under *base_dir* needed to put *files* there. + *base_dir* is just the name of a directory which doesn't necessarily exist + yet; *files* is a list of filenames to be interpreted relative to *base_dir*. + *base_dir* + the directory portion of every file in *files* will be created if + it doesn't already exist. *mode*, *verbose* and *dry_run* flags are as for + :func:`mkpath`. + + +.. function:: copy_tree(src, dst[, preserve_mode=True, preserve_times=True, preserve_symlinks=False, update=False, verbose=False, dry_run=False]) + + Copy an entire directory tree *src* to a new location *dst*. Both *src* and + *dst* must be directory names. If *src* is not a directory, raise + :exc:`DistutilsFileError`. If *dst* does not exist, it is created with + :func:`mkpath`. The end result of the copy is that every file in *src* is + copied to *dst*, and directories under *src* are recursively copied to *dst*. + Return the list of files that were copied or might have been copied, using their + output name. The return value is unaffected by *update* or *dry_run*: it is + simply the list of all files under *src*, with the names changed to be under + *dst*. + + *preserve_mode* and *preserve_times* are the same as for + :func:`distutils.file_util.copy_file`; note that they only apply to + regular files, not to + directories. If *preserve_symlinks* is true, symlinks will be copied as + symlinks (on platforms that support them!); otherwise (the default), the + destination of the symlink will be copied. *update* and *verbose* are the same + as for :func:`~distutils.file_util.copy_file`. + + Files in *src* that begin with :file:`.nfs` are skipped (more information on + these files is available in answer D2 of the `NFS FAQ page + `_). + + .. versionchanged:: 3.3.1 + NFS files are ignored. + +.. function:: remove_tree(directory[, verbose=False, dry_run=False]) + + Recursively remove *directory* and all files and directories underneath it. Any + errors are ignored (apart from being reported to ``sys.stdout`` if *verbose* is + true). + + +:mod:`distutils.file_util` --- Single file operations +===================================================== + +.. module:: distutils.file_util + :synopsis: Utility functions for operating on single files + + +This module contains some utility functions for operating on individual files. + + +.. function:: copy_file(src, dst[, preserve_mode=True, preserve_times=True, update=False, link=None, verbose=False, dry_run=False]) + + Copy file *src* to *dst*. If *dst* is a directory, then *src* is copied there + with the same name; otherwise, it must be a filename. (If the file exists, it + will be ruthlessly clobbered.) If *preserve_mode* is true (the default), the + file's mode (type and permission bits, or whatever is analogous on the + current platform) is copied. If *preserve_times* is true (the default), the + last-modified and last-access times are copied as well. If *update* is true, + *src* will only be copied if *dst* does not exist, or if *dst* does exist but + is older than *src*. + + *link* allows you to make hard links (using :func:`os.link`) or symbolic links + (using :func:`os.symlink`) instead of copying: set it to ``'hard'`` or + ``'sym'``; if it is ``None`` (the default), files are copied. Don't set *link* + on systems that don't support it: :func:`copy_file` doesn't check if hard or + symbolic linking is available. It uses :func:`~distutils.file_util._copy_file_contents` to copy file + contents. + + Return a tuple ``(dest_name, copied)``: *dest_name* is the actual name of the + output file, and *copied* is true if the file was copied (or would have been + copied, if *dry_run* true). + + .. % XXX if the destination file already exists, we clobber it if + .. % copying, but blow up if linking. Hmmm. And I don't know what + .. % macostools.copyfile() does. Should definitely be consistent, and + .. % should probably blow up if destination exists and we would be + .. % changing it (ie. it's not already a hard/soft link to src OR + .. % (not update) and (src newer than dst)). + + +.. function:: move_file(src, dst[, verbose, dry_run]) + + Move file *src* to *dst*. If *dst* is a directory, the file will be moved into + it with the same name; otherwise, *src* is just renamed to *dst*. Returns the + new full name of the file. + + .. warning:: + + Handles cross-device moves on Unix using :func:`copy_file`. What about + other systems? + + +.. function:: write_file(filename, contents) + + Create a file called *filename* and write *contents* (a sequence of strings + without line terminators) to it. + + +:mod:`distutils.util` --- Miscellaneous other utility functions +=============================================================== + +.. module:: distutils.util + :synopsis: Miscellaneous other utility functions + + +This module contains other assorted bits and pieces that don't fit into any +other utility module. + + +.. function:: get_platform() + + Return a string that identifies the current platform. This is used mainly to + distinguish platform-specific build directories and platform-specific built + distributions. Typically includes the OS name and version and the + architecture (as supplied by 'os.uname()'), although the exact information + included depends on the OS; e.g., on Linux, the kernel version isn't + particularly important. + + Examples of returned values: + + * ``linux-i586`` + * ``linux-alpha`` + * ``solaris-2.6-sun4u`` + + For non-POSIX platforms, currently just returns ``sys.platform``. + + For Mac OS X systems the OS version reflects the minimal version on which + binaries will run (that is, the value of ``MACOSX_DEPLOYMENT_TARGET`` + during the build of Python), not the OS version of the current system. + + For universal binary builds on Mac OS X the architecture value reflects + the universal binary status instead of the architecture of the current + processor. For 32-bit universal binaries the architecture is ``fat``, + for 64-bit universal binaries the architecture is ``fat64``, and + for 4-way universal binaries the architecture is ``universal``. Starting + from Python 2.7 and Python 3.2 the architecture ``fat3`` is used for + a 3-way universal build (ppc, i386, x86_64) and ``intel`` is used for + a universal build with the i386 and x86_64 architectures + + Examples of returned values on Mac OS X: + + * ``macosx-10.3-ppc`` + + * ``macosx-10.3-fat`` + + * ``macosx-10.5-universal`` + + * ``macosx-10.6-intel`` + + For AIX, Python 3.9 and later return a string starting with "aix", followed + by additional fields (separated by ``'-'``) that represent the combined + values of AIX Version, Release and Technology Level (first field), Build Date + (second field), and bit-size (third field). Python 3.8 and earlier returned + only a single additional field with the AIX Version and Release. + + Examples of returned values on AIX: + + * ``aix-5307-0747-32`` # 32-bit build on AIX ``oslevel -s``: 5300-07-00-0000 + + * ``aix-7105-1731-64`` # 64-bit build on AIX ``oslevel -s``: 7100-05-01-1731 + + * ``aix-7.2`` # Legacy form reported in Python 3.8 and earlier + + .. versionchanged:: 3.9 + The AIX platform string format now also includes the technology level, + build date, and ABI bit-size. + + +.. function:: convert_path(pathname) + + Return 'pathname' as a name that will work on the native filesystem, i.e. split + it on '/' and put it back together again using the current directory separator. + Needed because filenames in the setup script are always supplied in Unix style, + and have to be converted to the local convention before we can actually use them + in the filesystem. Raises :exc:`ValueError` on non-Unix-ish systems if + *pathname* either starts or ends with a slash. + + +.. function:: change_root(new_root, pathname) + + Return *pathname* with *new_root* prepended. If *pathname* is relative, this is + equivalent to ``os.path.join(new_root,pathname)`` Otherwise, it requires making + *pathname* relative and then joining the two, which is tricky on DOS/Windows. + + +.. function:: check_environ() + + Ensure that 'os.environ' has all the environment variables we guarantee that + users can use in config files, command-line options, etc. Currently this + includes: + + * :envvar:`HOME` - user's home directory (Unix only) + * :envvar:`PLAT` - description of the current platform, including hardware and + OS (see :func:`get_platform`) + + +.. function:: subst_vars(s, local_vars) + + Perform shell/Perl-style variable substitution on *s*. Every occurrence of + ``$`` followed by a name is considered a variable, and variable is substituted + by the value found in the *local_vars* dictionary, or in ``os.environ`` if it's + not in *local_vars*. *os.environ* is first checked/augmented to guarantee that + it contains certain values: see :func:`check_environ`. Raise :exc:`ValueError` + for any variables not found in either *local_vars* or ``os.environ``. + + Note that this is not a fully-fledged string interpolation function. A valid + ``$variable`` can consist only of upper and lower case letters, numbers and an + underscore. No { } or ( ) style quoting is available. + + +.. function:: split_quoted(s) + + Split a string up according to Unix shell-like rules for quotes and backslashes. + In short: words are delimited by spaces, as long as those spaces are not escaped + by a backslash, or inside a quoted string. Single and double quotes are + equivalent, and the quote characters can be backslash-escaped. The backslash is + stripped from any two-character escape sequence, leaving only the escaped + character. The quote characters are stripped from any quoted string. Returns a + list of words. + + .. % Should probably be moved into the standard library. + + +.. function:: execute(func, args[, msg=None, verbose=False, dry_run=False]) + + Perform some action that affects the outside world (for instance, writing to the + filesystem). Such actions are special because they are disabled by the + *dry_run* flag. This method takes care of all that bureaucracy for you; all + you have to do is supply the function to call and an argument tuple for it (to + embody the "external action" being performed), and an optional message to print. + + +.. function:: strtobool(val) + + Convert a string representation of truth to true (1) or false (0). + + True values are ``y``, ``yes``, ``t``, ``true``, ``on`` and ``1``; false values + are ``n``, ``no``, ``f``, ``false``, ``off`` and ``0``. Raises + :exc:`ValueError` if *val* is anything else. + + +.. function:: byte_compile(py_files[, optimize=0, force=False, prefix=None, base_dir=None, verbose=True, dry_run=False, direct=None]) + + Byte-compile a collection of Python source files to :file:`.pyc` files in a + :file:`__pycache__` subdirectory (see :pep:`3147` and :pep:`488`). + *py_files* is a list of files to compile; any files that don't end in + :file:`.py` are silently skipped. *optimize* must be one of the following: + + * ``0`` - don't optimize + * ``1`` - normal optimization (like ``python -O``) + * ``2`` - extra optimization (like ``python -OO``) + + If *force* is true, all files are recompiled regardless of timestamps. + + The source filename encoded in each :term:`bytecode` file defaults to the filenames + listed in *py_files*; you can modify these with *prefix* and *basedir*. + *prefix* is a string that will be stripped off of each source filename, and + *base_dir* is a directory name that will be prepended (after *prefix* is + stripped). You can supply either or both (or neither) of *prefix* and + *base_dir*, as you wish. + + If *dry_run* is true, doesn't actually do anything that would affect the + filesystem. + + Byte-compilation is either done directly in this interpreter process with the + standard :mod:`py_compile` module, or indirectly by writing a temporary script + and executing it. Normally, you should let :func:`byte_compile` figure out to + use direct compilation or not (see the source for details). The *direct* flag + is used by the script generated in indirect mode; unless you know what you're + doing, leave it set to ``None``. + + .. versionchanged:: 3.2.3 + Create ``.pyc`` files with an :func:`import magic tag + ` in their name, in a :file:`__pycache__` subdirectory + instead of files without tag in the current directory. + + .. versionchanged:: 3.5 + Create ``.pyc`` files according to :pep:`488`. + + +.. function:: rfc822_escape(header) + + Return a version of *header* escaped for inclusion in an :rfc:`822` header, by + ensuring there are 8 spaces space after each newline. Note that it does no other + modification of the string. + + .. % this _can_ be replaced + +.. % \subsection{Distutils objects} + + +:mod:`distutils.dist` --- The Distribution class +================================================ + +.. module:: distutils.dist + :synopsis: Provides the Distribution class, which represents the module distribution being + built/installed/distributed + + +This module provides the :class:`~distutils.core.Distribution` class, which +represents the module distribution being built/installed/distributed. + + +:mod:`distutils.extension` --- The Extension class +================================================== + +.. module:: distutils.extension + :synopsis: Provides the Extension class, used to describe C/C++ extension modules in setup + scripts + + +This module provides the :class:`~distutils.extension.Extension` class, +used to describe C/C++ extension modules in setup scripts. + +.. % \subsection{Ungrouped modules} +.. % The following haven't been moved into a more appropriate section yet. + + +:mod:`distutils.debug` --- Distutils debug mode +=============================================== + +.. module:: distutils.debug + :synopsis: Provides the debug flag for distutils + + +This module provides the DEBUG flag. + + +:mod:`distutils.errors` --- Distutils exceptions +================================================ + +.. module:: distutils.errors + :synopsis: Provides standard distutils exceptions + + +Provides exceptions used by the Distutils modules. Note that Distutils modules +may raise standard exceptions; in particular, SystemExit is usually raised for +errors that are obviously the end-user's fault (eg. bad command-line arguments). + +This module is safe to use in ``from ... import *`` mode; it only exports +symbols whose names start with ``Distutils`` and end with ``Error``. + + +:mod:`distutils.fancy_getopt` --- Wrapper around the standard getopt module +=========================================================================== + +.. module:: distutils.fancy_getopt + :synopsis: Additional getopt functionality + + +This module provides a wrapper around the standard :mod:`getopt` module that +provides the following additional features: + +* short and long options are tied together + +* options have help strings, so :func:`fancy_getopt` could potentially create a + complete usage summary + +* options set attributes of a passed-in object + +* boolean options can have "negative aliases" --- eg. if :option:`!--quiet` is + the "negative alias" of :option:`!--verbose`, then :option:`!--quiet` on the + command line sets *verbose* to false. + +.. function:: fancy_getopt(options, negative_opt, object, args) + + Wrapper function. *options* is a list of ``(long_option, short_option, + help_string)`` 3-tuples as described in the constructor for + :class:`FancyGetopt`. *negative_opt* should be a dictionary mapping option names + to option names, both the key and value should be in the *options* list. + *object* is an object which will be used to store values (see the :meth:`~FancyGetopt.getopt` + method of the :class:`FancyGetopt` class). *args* is the argument list. Will use + ``sys.argv[1:]`` if you pass ``None`` as *args*. + + +.. function:: wrap_text(text, width) + + Wraps *text* to less than *width* wide. + + +.. class:: FancyGetopt([option_table=None]) + + The option_table is a list of 3-tuples: ``(long_option, short_option, + help_string)`` + + If an option takes an argument, its *long_option* should have ``'='`` appended; + *short_option* should just be a single character, no ``':'`` in any case. + *short_option* should be ``None`` if a *long_option* doesn't have a + corresponding *short_option*. All option tuples must have long options. + +The :class:`FancyGetopt` class provides the following methods: + + +.. method:: FancyGetopt.getopt([args=None, object=None]) + + Parse command-line options in args. Store as attributes on *object*. + + If *args* is ``None`` or not supplied, uses ``sys.argv[1:]``. If *object* is + ``None`` or not supplied, creates a new :class:`OptionDummy` instance, stores + option values there, and returns a tuple ``(args, object)``. If *object* is + supplied, it is modified in place and :func:`getopt` just returns *args*; in + both cases, the returned *args* is a modified copy of the passed-in *args* list, + which is left untouched. + + .. % and args returned are? + + +.. method:: FancyGetopt.get_option_order() + + Returns the list of ``(option, value)`` tuples processed by the previous run of + :meth:`getopt` Raises :exc:`RuntimeError` if :meth:`getopt` hasn't been called + yet. + + +.. method:: FancyGetopt.generate_help([header=None]) + + Generate help text (a list of strings, one per suggested line of output) from + the option table for this :class:`FancyGetopt` object. + + If supplied, prints the supplied *header* at the top of the help. + + +:mod:`distutils.filelist` --- The FileList class +================================================ + +.. module:: distutils.filelist + :synopsis: The FileList class, used for poking about the file system and + building lists of files. + + +This module provides the :class:`FileList` class, used for poking about the +filesystem and building lists of files. + + +:mod:`distutils.log` --- Simple :pep:`282`-style logging +======================================================== + +.. module:: distutils.log + :synopsis: A simple logging mechanism, :pep:`282`-style + + +:mod:`distutils.spawn` --- Spawn a sub-process +============================================== + +.. module:: distutils.spawn + :synopsis: Provides the spawn() function + + +This module provides the :func:`~distutils.spawn.spawn` function, a +front-end to various platform-specific functions for launching another +program in a sub-process. +Also provides :func:`~distutils.spawn.find_executable` to search the path for a given executable +name. + + +:mod:`distutils.sysconfig` --- System configuration information +=============================================================== + +.. module:: distutils.sysconfig + :synopsis: Low-level access to configuration information of the Python interpreter. +.. moduleauthor:: Fred L. Drake, Jr. +.. moduleauthor:: Greg Ward +.. sectionauthor:: Fred L. Drake, Jr. + + +The :mod:`distutils.sysconfig` module provides access to Python's low-level +configuration information. The specific configuration variables available +depend heavily on the platform and configuration. The specific variables depend +on the build process for the specific version of Python being run; the variables +are those found in the :file:`Makefile` and configuration header that are +installed with Python on Unix systems. The configuration header is called +:file:`pyconfig.h` for Python versions starting with 2.2, and :file:`config.h` +for earlier versions of Python. + +Some additional functions are provided which perform some useful manipulations +for other parts of the :mod:`distutils` package. + + +.. data:: PREFIX + + The result of ``os.path.normpath(sys.prefix)``. + + +.. data:: EXEC_PREFIX + + The result of ``os.path.normpath(sys.exec_prefix)``. + + +.. function:: get_config_var(name) + + Return the value of a single variable. This is equivalent to + ``get_config_vars().get(name)``. + + +.. function:: get_config_vars(...) + + Return a set of variable definitions. If there are no arguments, this returns a + dictionary mapping names of configuration variables to values. If arguments are + provided, they should be strings, and the return value will be a sequence giving + the associated values. If a given name does not have a corresponding value, + ``None`` will be included for that variable. + + +.. function:: get_config_h_filename() + + Return the full path name of the configuration header. For Unix, this will be + the header generated by the :program:`configure` script; for other platforms the + header will have been supplied directly by the Python source distribution. The + file is a platform-specific text file. + + +.. function:: get_makefile_filename() + + Return the full path name of the :file:`Makefile` used to build Python. For + Unix, this will be a file generated by the :program:`configure` script; the + meaning for other platforms will vary. The file is a platform-specific text + file, if it exists. This function is only useful on POSIX platforms. + + +.. function:: get_python_inc([plat_specific[, prefix]]) + + Return the directory for either the general or platform-dependent C include + files. If *plat_specific* is true, the platform-dependent include directory is + returned; if false or omitted, the platform-independent directory is returned. + If *prefix* is given, it is used as either the prefix instead of + :const:`PREFIX`, or as the exec-prefix instead of :const:`EXEC_PREFIX` if + *plat_specific* is true. + + +.. function:: get_python_lib([plat_specific[, standard_lib[, prefix]]]) + + Return the directory for either the general or platform-dependent library + installation. If *plat_specific* is true, the platform-dependent include + directory is returned; if false or omitted, the platform-independent directory + is returned. If *prefix* is given, it is used as either the prefix instead of + :const:`PREFIX`, or as the exec-prefix instead of :const:`EXEC_PREFIX` if + *plat_specific* is true. If *standard_lib* is true, the directory for the + standard library is returned rather than the directory for the installation of + third-party extensions. + +The following function is only intended for use within the :mod:`distutils` +package. + + +.. function:: customize_compiler(compiler) + + Do any platform-specific customization of a + :class:`distutils.ccompiler.CCompiler` instance. + + This function is only needed on Unix at this time, but should be called + consistently to support forward-compatibility. It inserts the information that + varies across Unix flavors and is stored in Python's :file:`Makefile`. This + information includes the selected compiler, compiler and linker options, and the + extension used by the linker for shared objects. + +This function is even more special-purpose, and should only be used from +Python's own build procedures. + + +.. function:: set_python_build() + + Inform the :mod:`distutils.sysconfig` module that it is being used as part of + the build process for Python. This changes a lot of relative locations for + files, allowing them to be located in the build area rather than in an installed + Python. + + +:mod:`distutils.text_file` --- The TextFile class +================================================= + +.. module:: distutils.text_file + :synopsis: Provides the TextFile class, a simple interface to text files + + +This module provides the :class:`TextFile` class, which gives an interface to +text files that (optionally) takes care of stripping comments, ignoring blank +lines, and joining lines with backslashes. + + +.. class:: TextFile([filename=None, file=None, **options]) + + This class provides a file-like object that takes care of all the things you + commonly want to do when processing a text file that has some line-by-line + syntax: strip comments (as long as ``#`` is your comment character), skip blank + lines, join adjacent lines by escaping the newline (ie. backslash at end of + line), strip leading and/or trailing whitespace. All of these are optional and + independently controllable. + + The class provides a :meth:`warn` method so you can generate warning messages + that report physical line number, even if the logical line in question spans + multiple physical lines. Also provides :meth:`unreadline` for implementing + line-at-a-time lookahead. + + :class:`TextFile` instances are create with either *filename*, *file*, or both. + :exc:`RuntimeError` is raised if both are ``None``. *filename* should be a + string, and *file* a file object (or something that provides :meth:`readline` + and :meth:`close` methods). It is recommended that you supply at least + *filename*, so that :class:`TextFile` can include it in warning messages. If + *file* is not supplied, :class:`TextFile` creates its own using the + :func:`open` built-in function. + + The options are all boolean, and affect the values returned by :meth:`readline` + + .. tabularcolumns:: |l|L|l| + + +------------------+--------------------------------+---------+ + | option name | description | default | + +==================+================================+=========+ + | *strip_comments* | strip from ``'#'`` to | true | + | | end-of-line, as well as any | | + | | whitespace leading up to the | | + | | ``'#'``\ ---unless it is | | + | | escaped by a backslash | | + +------------------+--------------------------------+---------+ + | *lstrip_ws* | strip leading whitespace from | false | + | | each line before returning it | | + +------------------+--------------------------------+---------+ + | *rstrip_ws* | strip trailing whitespace | true | + | | (including line terminator!) | | + | | from each line before | | + | | returning it. | | + +------------------+--------------------------------+---------+ + | *skip_blanks* | skip lines that are empty | true | + | | \*after\* stripping comments | | + | | and whitespace. (If both | | + | | lstrip_ws and rstrip_ws are | | + | | false, then some lines may | | + | | consist of solely whitespace: | | + | | these will \*not\* be skipped, | | + | | even if *skip_blanks* is | | + | | true.) | | + +------------------+--------------------------------+---------+ + | *join_lines* | if a backslash is the last | false | + | | non-newline character on a | | + | | line after stripping comments | | + | | and whitespace, join the | | + | | following line to it to form | | + | | one logical line; if N | | + | | consecutive lines end with a | | + | | backslash, then N+1 physical | | + | | lines will be joined to form | | + | | one logical line. | | + +------------------+--------------------------------+---------+ + | *collapse_join* | strip leading whitespace from | false | + | | lines that are joined to their | | + | | predecessor; only matters if | | + | | ``(join_lines and not | | + | | lstrip_ws)`` | | + +------------------+--------------------------------+---------+ + + Note that since *rstrip_ws* can strip the trailing newline, the semantics of + :meth:`readline` must differ from those of the built-in file object's + :meth:`readline` method! In particular, :meth:`readline` returns ``None`` for + end-of-file: an empty string might just be a blank line (or an all-whitespace + line), if *rstrip_ws* is true but *skip_blanks* is not. + + + .. method:: TextFile.open(filename) + + Open a new file *filename*. This overrides any *file* or *filename* + constructor arguments. + + + .. method:: TextFile.close() + + Close the current file and forget everything we know about it (including the + filename and the current line number). + + + .. method:: TextFile.warn(msg[,line=None]) + + Print (to stderr) a warning message tied to the current logical line in the + current file. If the current logical line in the file spans multiple physical + lines, the warning refers to the whole range, such as ``"lines 3-5"``. If + *line* is supplied, it overrides the current line number; it may be a list or + tuple to indicate a range of physical lines, or an integer for a single + physical line. + + + .. method:: TextFile.readline() + + Read and return a single logical line from the current file (or from an internal + buffer if lines have previously been "unread" with :meth:`unreadline`). If the + *join_lines* option is true, this may involve reading multiple physical lines + concatenated into a single string. Updates the current line number, so calling + :meth:`warn` after :meth:`readline` emits a warning about the physical line(s) + just read. Returns ``None`` on end-of-file, since the empty string can occur + if *rstrip_ws* is true but *strip_blanks* is not. + + + .. method:: TextFile.readlines() + + Read and return the list of all logical lines remaining in the current file. + This updates the current line number to the last line of the file. + + + .. method:: TextFile.unreadline(line) + + Push *line* (a string) onto an internal buffer that will be checked by future + :meth:`readline` calls. Handy for implementing a parser with line-at-a-time + lookahead. Note that lines that are "unread" with :meth:`unreadline` are not + subsequently re-cleansed (whitespace stripped, or whatever) when read with + :meth:`readline`. If multiple calls are made to :meth:`unreadline` before a call + to :meth:`readline`, the lines will be returned most in most recent first order. + + +:mod:`distutils.version` --- Version number classes +=================================================== + +.. module:: distutils.version + :synopsis: Implements classes that represent module version numbers. + + +.. % todo +.. % \section{Distutils Commands} +.. % +.. % This part of Distutils implements the various Distutils commands, such +.. % as \code{build}, \code{install} \&c. Each command is implemented as a +.. % separate module, with the command name as the name of the module. + + +:mod:`distutils.cmd` --- Abstract base class for Distutils commands +=================================================================== + +.. module:: distutils.cmd + :synopsis: Provides the abstract base class :class:`~distutils.cmd.Command`. This class + is subclassed by the modules in the distutils.command subpackage. + + +This module supplies the abstract base class :class:`Command`. + + +.. class:: Command(dist) + + Abstract base class for defining command classes, the "worker bees" of the + Distutils. A useful analogy for command classes is to think of them as + subroutines with local variables called *options*. The options are declared + in :meth:`initialize_options` and defined (given their final values) in + :meth:`finalize_options`, both of which must be defined by every command + class. The distinction between the two is necessary because option values + might come from the outside world (command line, config file, ...), and any + options dependent on other options must be computed after these outside + influences have been processed --- hence :meth:`finalize_options`. The body + of the subroutine, where it does all its work based on the values of its + options, is the :meth:`run` method, which must also be implemented by every + command class. + + The class constructor takes a single argument *dist*, a + :class:`~distutils.core.Distribution` instance. + + +Creating a new Distutils command +================================ + +This section outlines the steps to create a new Distutils command. + +A new command lives in a module in the :mod:`distutils.command` package. There +is a sample template in that directory called :file:`command_template`. Copy +this file to a new module with the same name as the new command you're +implementing. This module should implement a class with the same name as the +module (and the command). So, for instance, to create the command +``peel_banana`` (so that users can run ``setup.py peel_banana``), you'd copy +:file:`command_template` to :file:`distutils/command/peel_banana.py`, then edit +it so that it's implementing the class ``peel_banana``, a subclass of +:class:`distutils.cmd.Command`. + +Subclasses of :class:`Command` must define the following methods. + +.. method:: Command.initialize_options() + + Set default values for all the options that this command supports. Note that + these defaults may be overridden by other commands, by the setup script, by + config files, or by the command-line. Thus, this is not the place to code + dependencies between options; generally, :meth:`initialize_options` + implementations are just a bunch of ``self.foo = None`` assignments. + + +.. method:: Command.finalize_options() + + Set final values for all the options that this command supports. This is + always called as late as possible, ie. after any option assignments from the + command-line or from other commands have been done. Thus, this is the place + to code option dependencies: if *foo* depends on *bar*, then it is safe to + set *foo* from *bar* as long as *foo* still has the same value it was + assigned in :meth:`initialize_options`. + + +.. method:: Command.run() + + A command's raison d'etre: carry out the action it exists to perform, controlled + by the options initialized in :meth:`initialize_options`, customized by other + commands, the setup script, the command-line, and config files, and finalized in + :meth:`finalize_options`. All terminal output and filesystem interaction should + be done by :meth:`run`. + + +.. attribute:: Command.sub_commands + + *sub_commands* formalizes the notion of a "family" of commands, + e.g. ``install`` as the parent with sub-commands ``install_lib``, + ``install_headers``, etc. The parent of a family of commands defines + *sub_commands* as a class attribute; it's a list of 2-tuples ``(command_name, + predicate)``, with *command_name* a string and *predicate* a function, a + string or ``None``. *predicate* is a method of the parent command that + determines whether the corresponding command is applicable in the current + situation. (E.g. ``install_headers`` is only applicable if we have any C + header files to install.) If *predicate* is ``None``, that command is always + applicable. + + *sub_commands* is usually defined at the *end* of a class, because + predicates can be methods of the class, so they must already have been + defined. The canonical example is the :command:`install` command. + + +:mod:`distutils.command` --- Individual Distutils commands +========================================================== + +.. module:: distutils.command + :synopsis: Contains one module for each standard Distutils command. + + +.. % \subsubsection{Individual Distutils commands} +.. % todo + + +:mod:`distutils.command.bdist` --- Build a binary installer +=========================================================== + +.. module:: distutils.command.bdist + :synopsis: Build a binary installer for a package + + +.. % todo + + +:mod:`distutils.command.bdist_packager` --- Abstract base class for packagers +============================================================================= + +.. module:: distutils.command.bdist_packager + :synopsis: Abstract base class for packagers + + +.. % todo + + +:mod:`distutils.command.bdist_dumb` --- Build a "dumb" installer +================================================================ + +.. module:: distutils.command.bdist_dumb + :synopsis: Build a "dumb" installer - a simple archive of files + + +:mod:`distutils.command.bdist_rpm` --- Build a binary distribution as a Redhat RPM and SRPM +=========================================================================================== + +.. module:: distutils.command.bdist_rpm + :synopsis: Build a binary distribution as a Redhat RPM and SRPM + + +.. % todo + + +:mod:`distutils.command.sdist` --- Build a source distribution +============================================================== + +.. module:: distutils.command.sdist + :synopsis: Build a source distribution + + +.. % todo + + +:mod:`distutils.command.build` --- Build all files of a package +=============================================================== + +.. module:: distutils.command.build + :synopsis: Build all files of a package + + +.. % todo + + +:mod:`distutils.command.build_clib` --- Build any C libraries in a package +========================================================================== + +.. module:: distutils.command.build_clib + :synopsis: Build any C libraries in a package + + +.. % todo + + +:mod:`distutils.command.build_ext` --- Build any extensions in a package +======================================================================== + +.. module:: distutils.command.build_ext + :synopsis: Build any extensions in a package + + +.. % todo + + +:mod:`distutils.command.build_py` --- Build the .py/.pyc files of a package +=========================================================================== + +.. module:: distutils.command.build_py + :synopsis: Build the .py/.pyc files of a package + + +.. class:: build_py + + +:mod:`distutils.command.build_scripts` --- Build the scripts of a package +========================================================================= + +.. module:: distutils.command.build_scripts + :synopsis: Build the scripts of a package + + +.. % todo + + +:mod:`distutils.command.clean` --- Clean a package build area +============================================================= + +.. module:: distutils.command.clean + :synopsis: Clean a package build area + +This command removes the temporary files created by :command:`build` +and its subcommands, like intermediary compiled object files. With +the ``--all`` option, the complete build directory will be removed. + +Extension modules built :ref:`in place ` +will not be cleaned, as they are not in the build directory. + + +:mod:`distutils.command.config` --- Perform package configuration +================================================================= + +.. module:: distutils.command.config + :synopsis: Perform package configuration + + +.. % todo + + +:mod:`distutils.command.install` --- Install a package +====================================================== + +.. module:: distutils.command.install + :synopsis: Install a package + + +.. % todo + + +:mod:`distutils.command.install_data` --- Install data files from a package +=========================================================================== + +.. module:: distutils.command.install_data + :synopsis: Install data files from a package + + +.. % todo + + +:mod:`distutils.command.install_headers` --- Install C/C++ header files from a package +====================================================================================== + +.. module:: distutils.command.install_headers + :synopsis: Install C/C++ header files from a package + + +.. % todo + + +:mod:`distutils.command.install_lib` --- Install library files from a package +============================================================================= + +.. module:: distutils.command.install_lib + :synopsis: Install library files from a package + + +.. % todo + + +:mod:`distutils.command.install_scripts` --- Install script files from a package +================================================================================ + +.. module:: distutils.command.install_scripts + :synopsis: Install script files from a package + + +.. % todo + + +:mod:`distutils.command.register` --- Register a module with the Python Package Index +===================================================================================== + +.. module:: distutils.command.register + :synopsis: Register a module with the Python Package Index + + +The ``register`` command registers the package with the Python Package Index. +This is described in more detail in :pep:`301`. + +.. % todo + + +:mod:`distutils.command.check` --- Check the meta-data of a package +=================================================================== + +.. module:: distutils.command.check + :synopsis: Check the meta-data of a package + + +The ``check`` command performs some tests on the meta-data of a package. +For example, it verifies that all required meta-data are provided as +the arguments passed to the :func:`~distutils.core.setup` function. + +.. % todo diff --git a/docs/deprecated/distutils/builtdist.rst b/docs/deprecated/distutils/builtdist.rst new file mode 100644 index 0000000000..052a5850f9 --- /dev/null +++ b/docs/deprecated/distutils/builtdist.rst @@ -0,0 +1,388 @@ +.. _built-dist: + +**************************** +Creating Built Distributions +**************************** + +.. include:: ./_setuptools_disclaimer.rst + +A "built distribution" is what you're probably used to thinking of either as a +"binary package" or an "installer" (depending on your background). It's not +necessarily binary, though, because it might contain only Python source code +and/or byte-code; and we don't call it a package, because that word is already +spoken for in Python. (And "installer" is a term specific to the world of +mainstream desktop systems.) + +A built distribution is how you make life as easy as possible for installers of +your module distribution: for users of RPM-based Linux systems, it's a binary +RPM; for Windows users, it's an executable installer; for Debian-based Linux +users, it's a Debian package; and so forth. Obviously, no one person will be +able to create built distributions for every platform under the sun, so the +Distutils are designed to enable module developers to concentrate on their +specialty---writing code and creating source distributions---while an +intermediary species called *packagers* springs up to turn source distributions +into built distributions for as many platforms as there are packagers. + +Of course, the module developer could be their own packager; or the packager could +be a volunteer "out there" somewhere who has access to a platform which the +original developer does not; or it could be software periodically grabbing new +source distributions and turning them into built distributions for as many +platforms as the software has access to. Regardless of who they are, a packager +uses the setup script and the :command:`bdist` command family to generate built +distributions. + +As a simple example, if I run the following command in the Distutils source +tree:: + + python setup.py bdist + +then the Distutils builds my module distribution (the Distutils itself in this +case), does a "fake" installation (also in the :file:`build` directory), and +creates the default type of built distribution for my platform. The default +format for built distributions is a "dumb" tar file on Unix, and a simple +executable installer on Windows. (That tar file is considered "dumb" because it +has to be unpacked in a specific location to work.) + +Thus, the above command on a Unix system creates +:file:`Distutils-1.0.{plat}.tar.gz`; unpacking this tarball from the right place +installs the Distutils just as though you had downloaded the source distribution +and run ``python setup.py install``. (The "right place" is either the root of +the filesystem or Python's :file:`{prefix}` directory, depending on the options +given to the :command:`bdist_dumb` command; the default is to make dumb +distributions relative to :file:`{prefix}`.) + +Obviously, for pure Python distributions, this isn't any simpler than just +running ``python setup.py install``\ ---but for non-pure distributions, which +include extensions that would need to be compiled, it can mean the difference +between someone being able to use your extensions or not. And creating "smart" +built distributions, such as an RPM package or an executable installer for +Windows, is far more convenient for users even if your distribution doesn't +include any extensions. + +The :command:`bdist` command has a :option:`!--formats` option, similar to the +:command:`sdist` command, which you can use to select the types of built +distribution to generate: for example, :: + + python setup.py bdist --format=zip + +would, when run on a Unix system, create +:file:`Distutils-1.0.{plat}.zip`\ ---again, this archive would be unpacked +from the root directory to install the Distutils. + +The available formats for built distributions are: + ++-------------+------------------------------+---------+ +| Format | Description | Notes | ++=============+==============================+=========+ +| ``gztar`` | gzipped tar file | \(1) | +| | (:file:`.tar.gz`) | | ++-------------+------------------------------+---------+ +| ``bztar`` | bzipped tar file | | +| | (:file:`.tar.bz2`) | | ++-------------+------------------------------+---------+ +| ``xztar`` | xzipped tar file | | +| | (:file:`.tar.xz`) | | ++-------------+------------------------------+---------+ +| ``ztar`` | compressed tar file | \(3) | +| | (:file:`.tar.Z`) | | ++-------------+------------------------------+---------+ +| ``tar`` | tar file (:file:`.tar`) | | ++-------------+------------------------------+---------+ +| ``zip`` | zip file (:file:`.zip`) | (2),(4) | ++-------------+------------------------------+---------+ +| ``rpm`` | RPM | \(5) | ++-------------+------------------------------+---------+ +| ``pkgtool`` | Solaris :program:`pkgtool` | | ++-------------+------------------------------+---------+ +| ``sdux`` | HP-UX :program:`swinstall` | | ++-------------+------------------------------+---------+ + +.. versionchanged:: 3.5 + Added support for the ``xztar`` format. + + +Notes: + +(1) + default on Unix + +(2) + default on Windows + +(3) + requires external :program:`compress` utility. + +(4) + requires either external :program:`zip` utility or :mod:`zipfile` module (part + of the standard Python library since Python 1.6) + +(5) + requires external :program:`rpm` utility, version 3.0.4 or better (use ``rpm + --version`` to find out which version you have) + +You don't have to use the :command:`bdist` command with the :option:`!--formats` +option; you can also use the command that directly implements the format you're +interested in. Some of these :command:`bdist` "sub-commands" actually generate +several similar formats; for instance, the :command:`bdist_dumb` command +generates all the "dumb" archive formats (``tar``, ``gztar``, ``bztar``, +``xztar``, ``ztar``, and ``zip``), and :command:`bdist_rpm` generates both +binary and source RPMs. The :command:`bdist` sub-commands, and the formats +generated by each, are: + ++--------------------------+-------------------------------------+ +| Command | Formats | ++==========================+=====================================+ +| :command:`bdist_dumb` | tar, gztar, bztar, xztar, ztar, zip | ++--------------------------+-------------------------------------+ +| :command:`bdist_rpm` | rpm, srpm | ++--------------------------+-------------------------------------+ + +The following sections give details on the individual :command:`bdist_\*` +commands. + + +.. .. _creating-dumb: + +.. Creating dumb built distributions +.. ================================= + +.. XXX Need to document absolute vs. prefix-relative packages here, but first + I have to implement it! + + +.. _creating-rpms: + +Creating RPM packages +===================== + +The RPM format is used by many popular Linux distributions, including Red Hat, +SuSE, and Mandrake. If one of these (or any of the other RPM-based Linux +distributions) is your usual environment, creating RPM packages for other users +of that same distribution is trivial. Depending on the complexity of your module +distribution and differences between Linux distributions, you may also be able +to create RPMs that work on different RPM-based distributions. + +The usual way to create an RPM of your module distribution is to run the +:command:`bdist_rpm` command:: + + python setup.py bdist_rpm + +or the :command:`bdist` command with the :option:`!--format` option:: + + python setup.py bdist --formats=rpm + +The former allows you to specify RPM-specific options; the latter allows you to +easily specify multiple formats in one run. If you need to do both, you can +explicitly specify multiple :command:`bdist_\*` commands and their options:: + + python setup.py bdist_rpm --packager="John Doe " \ + bdist_dumb --dumb-option=foo + +Creating RPM packages is driven by a :file:`.spec` file, much as using the +Distutils is driven by the setup script. To make your life easier, the +:command:`bdist_rpm` command normally creates a :file:`.spec` file based on the +information you supply in the setup script, on the command line, and in any +Distutils configuration files. Various options and sections in the +:file:`.spec` file are derived from options in the setup script as follows: + ++------------------------------------------+----------------------------------------------+ +| RPM :file:`.spec` file option or section | Distutils setup script option | ++==========================================+==============================================+ +| Name | ``name`` | ++------------------------------------------+----------------------------------------------+ +| Summary (in preamble) | ``description`` | ++------------------------------------------+----------------------------------------------+ +| Version | ``version`` | ++------------------------------------------+----------------------------------------------+ +| Vendor | ``author`` and ``author_email``, | +| | or --- & ``maintainer`` and | +| | ``maintainer_email`` | ++------------------------------------------+----------------------------------------------+ +| Copyright | ``license`` | ++------------------------------------------+----------------------------------------------+ +| Url | ``url`` | ++------------------------------------------+----------------------------------------------+ +| %description (section) | ``long_description`` | ++------------------------------------------+----------------------------------------------+ + +Additionally, there are many options in :file:`.spec` files that don't have +corresponding options in the setup script. Most of these are handled through +options to the :command:`bdist_rpm` command as follows: + ++-------------------------------+-----------------------------+-------------------------+ +| RPM :file:`.spec` file option | :command:`bdist_rpm` option | default value | +| or section | | | ++===============================+=============================+=========================+ +| Release | ``release`` | "1" | ++-------------------------------+-----------------------------+-------------------------+ +| Group | ``group`` | "Development/Libraries" | ++-------------------------------+-----------------------------+-------------------------+ +| Vendor | ``vendor`` | (see above) | ++-------------------------------+-----------------------------+-------------------------+ +| Packager | ``packager`` | (none) | ++-------------------------------+-----------------------------+-------------------------+ +| Provides | ``provides`` | (none) | ++-------------------------------+-----------------------------+-------------------------+ +| Requires | ``requires`` | (none) | ++-------------------------------+-----------------------------+-------------------------+ +| Conflicts | ``conflicts`` | (none) | ++-------------------------------+-----------------------------+-------------------------+ +| Obsoletes | ``obsoletes`` | (none) | ++-------------------------------+-----------------------------+-------------------------+ +| Distribution | ``distribution_name`` | (none) | ++-------------------------------+-----------------------------+-------------------------+ +| BuildRequires | ``build_requires`` | (none) | ++-------------------------------+-----------------------------+-------------------------+ +| Icon | ``icon`` | (none) | ++-------------------------------+-----------------------------+-------------------------+ + +Obviously, supplying even a few of these options on the command-line would be +tedious and error-prone, so it's usually best to put them in the setup +configuration file, :file:`setup.cfg`\ ---see section :ref:`setup-config`. If +you distribute or package many Python module distributions, you might want to +put options that apply to all of them in your personal Distutils configuration +file (:file:`~/.pydistutils.cfg`). If you want to temporarily disable +this file, you can pass the :option:`!--no-user-cfg` option to :file:`setup.py`. + +There are three steps to building a binary RPM package, all of which are +handled automatically by the Distutils: + +#. create a :file:`.spec` file, which describes the package (analogous to the + Distutils setup script; in fact, much of the information in the setup script + winds up in the :file:`.spec` file) + +#. create the source RPM + +#. create the "binary" RPM (which may or may not contain binary code, depending + on whether your module distribution contains Python extensions) + +Normally, RPM bundles the last two steps together; when you use the Distutils, +all three steps are typically bundled together. + +If you wish, you can separate these three steps. You can use the +:option:`!--spec-only` option to make :command:`bdist_rpm` just create the +:file:`.spec` file and exit; in this case, the :file:`.spec` file will be +written to the "distribution directory"---normally :file:`dist/`, but +customizable with the :option:`!--dist-dir` option. (Normally, the :file:`.spec` +file winds up deep in the "build tree," in a temporary directory created by +:command:`bdist_rpm`.) + +.. % \XXX{this isn't implemented yet---is it needed?!} +.. % You can also specify a custom \file{.spec} file with the +.. % \longprogramopt{spec-file} option; used in conjunction with +.. % \longprogramopt{spec-only}, this gives you an opportunity to customize +.. % the \file{.spec} file manually: +.. % +.. % \ begin{verbatim} +.. % > python setup.py bdist_rpm --spec-only +.. % # ...edit dist/FooBar-1.0.spec +.. % > python setup.py bdist_rpm --spec-file=dist/FooBar-1.0.spec +.. % \ end{verbatim} +.. % +.. % (Although a better way to do this is probably to override the standard +.. % \command{bdist\_rpm} command with one that writes whatever else you want +.. % to the \file{.spec} file.) + +.. _cross-compile-windows: + +Cross-compiling on Windows +========================== + +Starting with Python 2.6, distutils is capable of cross-compiling between +Windows platforms. In practice, this means that with the correct tools +installed, you can use a 32bit version of Windows to create 64bit extensions +and vice-versa. + +To build for an alternate platform, specify the :option:`!--plat-name` option +to the build command. Valid values are currently 'win32', and 'win-amd64'. +For example, on a 32bit version of Windows, you could execute:: + + python setup.py build --plat-name=win-amd64 + +to build a 64bit version of your extension. + +To cross-compile, you must download the Python source code and cross-compile +Python itself for the platform you are targeting - it is not possible from a +binary installation of Python (as the .lib etc file for other platforms are +not included.) In practice, this means the user of a 32 bit operating +system will need to use Visual Studio 2008 to open the +:file:`PCbuild/PCbuild.sln` solution in the Python source tree and build the +"x64" configuration of the 'pythoncore' project before cross-compiling +extensions is possible. + +Note that by default, Visual Studio 2008 does not install 64bit compilers or +tools. You may need to reexecute the Visual Studio setup process and select +these tools (using Control Panel->[Add/Remove] Programs is a convenient way to +check or modify your existing install.) + +.. _postinstallation-script: + +The Postinstallation script +--------------------------- + +Starting with Python 2.3, a postinstallation script can be specified with the +:option:`!--install-script` option. The basename of the script must be +specified, and the script filename must also be listed in the scripts argument +to the setup function. + +This script will be run at installation time on the target system after all the +files have been copied, with ``argv[1]`` set to :option:`!-install`, and again at +uninstallation time before the files are removed with ``argv[1]`` set to +:option:`!-remove`. + +The installation script runs embedded in the windows installer, every output +(``sys.stdout``, ``sys.stderr``) is redirected into a buffer and will be +displayed in the GUI after the script has finished. + +Some functions especially useful in this context are available as additional +built-in functions in the installation script. + + +.. function:: directory_created(path) + file_created(path) + + These functions should be called when a directory or file is created by the + postinstall script at installation time. It will register *path* with the + uninstaller, so that it will be removed when the distribution is uninstalled. + To be safe, directories are only removed if they are empty. + + +.. function:: get_special_folder_path(csidl_string) + + This function can be used to retrieve special folder locations on Windows like + the Start Menu or the Desktop. It returns the full path to the folder. + *csidl_string* must be one of the following strings:: + + "CSIDL_APPDATA" + + "CSIDL_COMMON_STARTMENU" + "CSIDL_STARTMENU" + + "CSIDL_COMMON_DESKTOPDIRECTORY" + "CSIDL_DESKTOPDIRECTORY" + + "CSIDL_COMMON_STARTUP" + "CSIDL_STARTUP" + + "CSIDL_COMMON_PROGRAMS" + "CSIDL_PROGRAMS" + + "CSIDL_FONTS" + + If the folder cannot be retrieved, :exc:`OSError` is raised. + + Which folders are available depends on the exact Windows version, and probably + also the configuration. For details refer to Microsoft's documentation of the + :c:func:`SHGetSpecialFolderPath` function. + + +.. function:: create_shortcut(target, description, filename[, arguments[, workdir[, iconpath[, iconindex]]]]) + + This function creates a shortcut. *target* is the path to the program to be + started by the shortcut. *description* is the description of the shortcut. + *filename* is the title of the shortcut that the user will see. *arguments* + specifies the command line arguments, if any. *workdir* is the working directory + for the program. *iconpath* is the file containing the icon for the shortcut, + and *iconindex* is the index of the icon in the file *iconpath*. Again, for + details consult the Microsoft documentation for the :class:`IShellLink` + interface. diff --git a/docs/deprecated/distutils/commandref.rst b/docs/deprecated/distutils/commandref.rst new file mode 100644 index 0000000000..d02b38c336 --- /dev/null +++ b/docs/deprecated/distutils/commandref.rst @@ -0,0 +1,103 @@ +.. _reference: + +***************** +Command Reference +***************** + +.. include:: ./_setuptools_disclaimer.rst + +.. % \section{Building modules: the \protect\command{build} command family} +.. % \label{build-cmds} +.. % \subsubsection{\protect\command{build}} +.. % \label{build-cmd} +.. % \subsubsection{\protect\command{build\_py}} +.. % \label{build-py-cmd} +.. % \subsubsection{\protect\command{build\_ext}} +.. % \label{build-ext-cmd} +.. % \subsubsection{\protect\command{build\_clib}} +.. % \label{build-clib-cmd} + + +.. _install-cmd: + +Installing modules: the :command:`install` command family +========================================================= + +The install command ensures that the build commands have been run and then runs +the subcommands :command:`install_lib`, :command:`install_data` and +:command:`install_scripts`. + +.. % \subsubsection{\protect\command{install\_lib}} +.. % \label{install-lib-cmd} + + +.. _install-data-cmd: + +:command:`install_data` +----------------------- + +This command installs all data files provided with the distribution. + + +.. _install-scripts-cmd: + +:command:`install_scripts` +-------------------------- + +This command installs all (Python) scripts in the distribution. + +.. % \subsection{Cleaning up: the \protect\command{clean} command} +.. % \label{clean-cmd} + + +.. _sdist-cmd: + +Creating a source distribution: the :command:`sdist` command +============================================================ + +.. XXX fragment moved down from above: needs context! + +The manifest template commands are: + ++-------------------------------------------+-----------------------------------------------+ +| Command | Description | ++===========================================+===============================================+ +| :command:`include pat1 pat2 ...` | include all files matching any of the listed | +| | patterns | ++-------------------------------------------+-----------------------------------------------+ +| :command:`exclude pat1 pat2 ...` | exclude all files matching any of the listed | +| | patterns | ++-------------------------------------------+-----------------------------------------------+ +| :command:`recursive-include dir pat1 pat2 | include all files under *dir* matching any of | +| ...` | the listed patterns | ++-------------------------------------------+-----------------------------------------------+ +| :command:`recursive-exclude dir pat1 pat2 | exclude all files under *dir* matching any of | +| ...` | the listed patterns | ++-------------------------------------------+-----------------------------------------------+ +| :command:`global-include pat1 pat2 ...` | include all files anywhere in the source tree | +| | matching --- & any of the listed patterns | ++-------------------------------------------+-----------------------------------------------+ +| :command:`global-exclude pat1 pat2 ...` | exclude all files anywhere in the source tree | +| | matching --- & any of the listed patterns | ++-------------------------------------------+-----------------------------------------------+ +| :command:`prune dir` | exclude all files under *dir* | ++-------------------------------------------+-----------------------------------------------+ +| :command:`graft dir` | include all files under *dir* | ++-------------------------------------------+-----------------------------------------------+ + +The patterns here are Unix-style "glob" patterns: ``*`` matches any sequence of +regular filename characters, ``?`` matches any single regular filename +character, and ``[range]`` matches any of the characters in *range* (e.g., +``a-z``, ``a-zA-Z``, ``a-f0-9_.``). The definition of "regular filename +character" is platform-specific: on Unix it is anything except slash; on Windows +anything except backslash or colon. + +.. XXX Windows support not there yet + +.. % \section{Creating a built distribution: the +.. % \protect\command{bdist} command family} +.. % \label{bdist-cmds} + +.. % \subsection{\protect\command{bdist}} +.. % \subsection{\protect\command{bdist\_dumb}} +.. % \subsection{\protect\command{bdist\_rpm}} diff --git a/docs/deprecated/distutils/configfile.rst b/docs/deprecated/distutils/configfile.rst new file mode 100644 index 0000000000..e012e5d233 --- /dev/null +++ b/docs/deprecated/distutils/configfile.rst @@ -0,0 +1,137 @@ +.. _setup-config: + +************************************ +Writing the Setup Configuration File +************************************ + +.. include:: ./_setuptools_disclaimer.rst + +Often, it's not possible to write down everything needed to build a distribution +*a priori*: you may need to get some information from the user, or from the +user's system, in order to proceed. As long as that information is fairly +simple---a list of directories to search for C header files or libraries, for +example---then providing a configuration file, :file:`setup.cfg`, for users to +edit is a cheap and easy way to solicit it. Configuration files also let you +provide default values for any command option, which the installer can then +override either on the command-line or by editing the config file. + +The setup configuration file is a useful middle-ground between the setup +script---which, ideally, would be opaque to installers [#]_---and the command-line to +the setup script, which is outside of your control and entirely up to the +installer. In fact, :file:`setup.cfg` (and any other Distutils configuration +files present on the target system) are processed after the contents of the +setup script, but before the command-line. This has several useful +consequences: + +.. % (If you have more advanced needs, such as determining which extensions +.. % to build based on what capabilities are present on the target system, +.. % then you need the Distutils ``auto-configuration'' facility. This +.. % started to appear in Distutils 0.9 but, as of this writing, isn't mature +.. % or stable enough yet for real-world use.) + +* installers can override some of what you put in :file:`setup.py` by editing + :file:`setup.cfg` + +* you can provide non-standard defaults for options that are not easily set in + :file:`setup.py` + +* installers can override anything in :file:`setup.cfg` using the command-line + options to :file:`setup.py` or by pointing :envvar:`DIST_EXTRA_CONFIG` + to another configuration file + +The basic syntax of the configuration file is simple: + +.. code-block:: ini + + [command] + option=value + ... + +where *command* is one of the Distutils commands (e.g. :command:`build_py`, +:command:`install`), and *option* is one of the options that command supports. +Any number of options can be supplied for each command, and any number of +command sections can be included in the file. Blank lines are ignored, as are +comments, which run from a ``'#'`` character until the end of the line. Long +option values can be split across multiple lines simply by indenting the +continuation lines. + +You can find out the list of options supported by a particular command with the +universal :option:`!--help` option, e.g. + +.. code-block:: shell-session + + $ python setup.py --help build_ext + [...] + Options for 'build_ext' command: + --build-lib (-b) directory for compiled extension modules + --build-temp (-t) directory for temporary files (build by-products) + --inplace (-i) ignore build-lib and put compiled extensions into the + source directory alongside your pure Python modules + --include-dirs (-I) list of directories to search for header files + --define (-D) C preprocessor macros to define + --undef (-U) C preprocessor macros to undefine + --swig-opts list of SWIG command line options + [...] + +Note that an option spelled :option:`!--foo-bar` on the command-line is spelled +``foo_bar`` in configuration files. + +.. _distutils-build-ext-inplace: + +For example, say you want your extensions to be built "in-place"---that is, you +have an extension ``pkg.ext``, and you want the compiled extension file +(:file:`ext.so` on Unix, say) to be put in the same source directory as your +pure Python modules ``pkg.mod1`` and ``pkg.mod2``. You can always use the +:option:`!--inplace` option on the command-line to ensure this: + +.. code-block:: sh + + python setup.py build_ext --inplace + +But this requires that you always specify the :command:`build_ext` command +explicitly, and remember to provide :option:`!--inplace`. An easier way is to +"set and forget" this option, by encoding it in :file:`setup.cfg`, the +configuration file for this distribution: + +.. code-block:: ini + + [build_ext] + inplace=true + +This will affect all builds of this module distribution, whether or not you +explicitly specify :command:`build_ext`. If you include :file:`setup.cfg` in +your source distribution, it will also affect end-user builds---which is +probably a bad idea for this option, since always building extensions in-place +would break installation of the module distribution. In certain peculiar cases, +though, modules are built right in their installation directory, so this is +conceivably a useful ability. (Distributing extensions that expect to be built +in their installation directory is almost always a bad idea, though.) + +Another example: certain commands take a lot of options that don't change from +run to run; for example, :command:`bdist_rpm` needs to know everything required +to generate a "spec" file for creating an RPM distribution. Some of this +information comes from the setup script, and some is automatically generated by +the Distutils (such as the list of files installed). But some of it has to be +supplied as options to :command:`bdist_rpm`, which would be very tedious to do +on the command-line for every run. Hence, here is a snippet from the Distutils' +own :file:`setup.cfg`: + +.. code-block:: ini + + [bdist_rpm] + release = 1 + packager = Greg Ward + doc_files = CHANGES.txt + README.txt + USAGE.txt + doc/ + examples/ + +Note that the ``doc_files`` option is simply a whitespace-separated string +split across multiple lines for readability. + + +.. rubric:: Footnotes + +.. [#] This ideal probably won't be achieved until auto-configuration is fully + supported by the Distutils. diff --git a/docs/deprecated/distutils/examples.rst b/docs/deprecated/distutils/examples.rst new file mode 100644 index 0000000000..54866cb261 --- /dev/null +++ b/docs/deprecated/distutils/examples.rst @@ -0,0 +1,338 @@ +.. _distutils_examples: + +****************** +Distutils Examples +****************** + +.. include:: ./_setuptools_disclaimer.rst + +This chapter provides a number of basic examples to help get started with +distutils. Additional information about using distutils can be found in the +Distutils Cookbook. + + +.. seealso:: + + `Distutils Cookbook `_ + Collection of recipes showing how to achieve more control over distutils. + + +.. _pure-mod: + +Pure Python distribution (by module) +==================================== + +If you're just distributing a couple of modules, especially if they don't live +in a particular package, you can specify them individually using the +``py_modules`` option in the setup script. + +In the simplest case, you'll have two files to worry about: a setup script and +the single module you're distributing, :file:`foo.py` in this example:: + + / + setup.py + foo.py + +(In all diagrams in this section, ** will refer to the distribution root +directory.) A minimal setup script to describe this situation would be:: + + from distutils.core import setup + setup(name='foo', + version='1.0', + py_modules=['foo'], + ) + +Note that the name of the distribution is specified independently with the +``name`` option, and there's no rule that says it has to be the same as +the name of the sole module in the distribution (although that's probably a good +convention to follow). However, the distribution name is used to generate +filenames, so you should stick to letters, digits, underscores, and hyphens. + +Since ``py_modules`` is a list, you can of course specify multiple +modules, eg. if you're distributing modules ``foo`` and ``bar``, your +setup might look like this:: + + / + setup.py + foo.py + bar.py + +and the setup script might be :: + + from distutils.core import setup + setup(name='foobar', + version='1.0', + py_modules=['foo', 'bar'], + ) + +You can put module source files into another directory, but if you have enough +modules to do that, it's probably easier to specify modules by package rather +than listing them individually. + + +.. _pure-pkg: + +Pure Python distribution (by package) +===================================== + +If you have more than a couple of modules to distribute, especially if they are +in multiple packages, it's probably easier to specify whole packages rather than +individual modules. This works even if your modules are not in a package; you +can just tell the Distutils to process modules from the root package, and that +works the same as any other package (except that you don't have to have an +:file:`__init__.py` file). + +The setup script from the last example could also be written as :: + + from distutils.core import setup + setup(name='foobar', + version='1.0', + packages=[''], + ) + +(The empty string stands for the root package.) + +If those two files are moved into a subdirectory, but remain in the root +package, e.g.:: + + / + setup.py + src/ foo.py + bar.py + +then you would still specify the root package, but you have to tell the +Distutils where source files in the root package live:: + + from distutils.core import setup + setup(name='foobar', + version='1.0', + package_dir={'': 'src'}, + packages=[''], + ) + +More typically, though, you will want to distribute multiple modules in the same +package (or in sub-packages). For example, if the ``foo`` and ``bar`` +modules belong in package ``foobar``, one way to layout your source tree is +:: + + / + setup.py + foobar/ + __init__.py + foo.py + bar.py + +This is in fact the default layout expected by the Distutils, and the one that +requires the least work to describe in your setup script:: + + from distutils.core import setup + setup(name='foobar', + version='1.0', + packages=['foobar'], + ) + +If you want to put modules in directories not named for their package, then you +need to use the ``package_dir`` option again. For example, if the +:file:`src` directory holds modules in the ``foobar`` package:: + + / + setup.py + src/ + __init__.py + foo.py + bar.py + +an appropriate setup script would be :: + + from distutils.core import setup + setup(name='foobar', + version='1.0', + package_dir={'foobar': 'src'}, + packages=['foobar'], + ) + +Or, you might put modules from your main package right in the distribution +root:: + + / + setup.py + __init__.py + foo.py + bar.py + +in which case your setup script would be :: + + from distutils.core import setup + setup(name='foobar', + version='1.0', + package_dir={'foobar': ''}, + packages=['foobar'], + ) + +(The empty string also stands for the current directory.) + +If you have sub-packages, they must be explicitly listed in ``packages``, +but any entries in ``package_dir`` automatically extend to sub-packages. +(In other words, the Distutils does *not* scan your source tree, trying to +figure out which directories correspond to Python packages by looking for +:file:`__init__.py` files.) Thus, if the default layout grows a sub-package:: + + / + setup.py + foobar/ + __init__.py + foo.py + bar.py + subfoo/ + __init__.py + blah.py + +then the corresponding setup script would be :: + + from distutils.core import setup + setup(name='foobar', + version='1.0', + packages=['foobar', 'foobar.subfoo'], + ) + + +.. _single-ext: + +Single extension module +======================= + +Extension modules are specified using the ``ext_modules`` option. +``package_dir`` has no effect on where extension source files are found; +it only affects the source for pure Python modules. The simplest case, a +single extension module in a single C source file, is:: + + / + setup.py + foo.c + +If the ``foo`` extension belongs in the root package, the setup script for +this could be :: + + from distutils.core import setup + from distutils.extension import Extension + setup(name='foobar', + version='1.0', + ext_modules=[Extension('foo', ['foo.c'])], + ) + +If the extension actually belongs in a package, say ``foopkg``, then + +With exactly the same source tree layout, this extension can be put in the +``foopkg`` package simply by changing the name of the extension:: + + from distutils.core import setup + from distutils.extension import Extension + setup(name='foobar', + version='1.0', + ext_modules=[Extension('foopkg.foo', ['foo.c'])], + ) + +Checking a package +================== + +The ``check`` command allows you to verify if your package meta-data +meet the minimum requirements to build a distribution. + +To run it, just call it using your :file:`setup.py` script. If something is +missing, ``check`` will display a warning. + +Let's take an example with a simple script:: + + from distutils.core import setup + + setup(name='foobar') + +Running the ``check`` command will display some warnings: + +.. code-block:: shell-session + + $ python setup.py check + running check + warning: check: missing required meta-data: version + + +If you use the reStructuredText syntax in the ``long_description`` field and +`docutils`_ is installed you can check if the syntax is fine with the +``check`` command, using the ``restructuredtext`` option. + +For example, if the :file:`setup.py` script is changed like this:: + + from distutils.core import setup + + desc = """\ + My description + ============== + + This is the description of the ``foobar`` package. + """ + + setup(name='foobar', version='1', author='tarek', + author_email='tarek@ziade.org', + url='http://example.com', long_description=desc) + +Where the long description is broken, ``check`` will be able to detect it +by using the :mod:`docutils` parser: + +.. code-block:: shell-session + + $ python setup.py check --restructuredtext + running check + warning: check: Title underline too short. (line 2) + warning: check: Could not finish the parsing. + +Reading the metadata +===================== + +The :func:`distutils.core.setup` function provides a command-line interface +that allows you to query the metadata fields of a project through the +``setup.py`` script of a given project: + +.. code-block:: shell-session + + $ python setup.py --name + distribute + +This call reads the ``name`` metadata by running the +:func:`distutils.core.setup` function. Although, when a source or binary +distribution is created with Distutils, the metadata fields are written +in a static file called :file:`PKG-INFO`. When a Distutils-based project is +installed in Python, the :file:`PKG-INFO` file is copied alongside the modules +and packages of the distribution under :file:`NAME-VERSION-pyX.X.egg-info`, +where ``NAME`` is the name of the project, ``VERSION`` its version as defined +in the Metadata, and ``pyX.X`` the major and minor version of Python like +``2.7`` or ``3.2``. + +You can read back this static file, by using the +:class:`distutils.dist.DistributionMetadata` class and its +:func:`~distutils.dist.DistributionMetadata.read_pkg_file` method:: + + >>> from distutils.dist import DistributionMetadata + >>> metadata = DistributionMetadata() + >>> metadata.read_pkg_file(open('distribute-0.6.8-py2.7.egg-info')) + >>> metadata.name + 'distribute' + >>> metadata.version + '0.6.8' + >>> metadata.description + 'Easily download, build, install, upgrade, and uninstall Python packages' + +Notice that the class can also be instantiated with a metadata file path to +loads its values:: + + >>> pkg_info_path = 'distribute-0.6.8-py2.7.egg-info' + >>> DistributionMetadata(pkg_info_path).name + 'distribute' + + +.. % \section{Multiple extension modules} +.. % \label{multiple-ext} + +.. % \section{Putting it all together} + + +.. _docutils: https://docutils.sourceforge.io diff --git a/docs/deprecated/distutils/extending.rst b/docs/deprecated/distutils/extending.rst new file mode 100644 index 0000000000..fc49461647 --- /dev/null +++ b/docs/deprecated/distutils/extending.rst @@ -0,0 +1,96 @@ +.. _extending-distutils: + +******************* +Extending Distutils +******************* + +.. include:: ./_setuptools_disclaimer.rst + +Distutils can be extended in various ways. Most extensions take the form of new +commands or replacements for existing commands. New commands may be written to +support new types of platform-specific packaging, for example, while +replacements for existing commands may be made to modify details of how the +command operates on a package. + +Most extensions of the distutils are made within :file:`setup.py` scripts that +want to modify existing commands; many simply add a few file extensions that +should be copied into packages in addition to :file:`.py` files as a +convenience. + +Most distutils command implementations are subclasses of the +:class:`distutils.cmd.Command` class. New commands may directly inherit from +:class:`~distutils.cmd.Command`, while replacements often derive from :class:`~distutils.cmd.Command` +indirectly, directly subclassing the command they are replacing. Commands are +required to derive from :class:`~distutils.cmd.Command`. + +.. % \section{Extending existing commands} +.. % \label{extend-existing} + +.. % \section{Writing new commands} +.. % \label{new-commands} +.. % \XXX{Would an uninstall command be a good example here?} + + +Integrating new commands +======================== + +There are different ways to integrate new command implementations into +distutils. The most difficult is to lobby for the inclusion of the new features +in distutils itself, and wait for (and require) a version of Python that +provides that support. This is really hard for many reasons. + +The most common, and possibly the most reasonable for most needs, is to include +the new implementations with your :file:`setup.py` script, and cause the +:func:`distutils.core.setup` function use them:: + + from distutils.command.build_py import build_py as _build_py + from distutils.core import setup + + class build_py(_build_py): + """Specialized Python source builder.""" + + # implement whatever needs to be different... + + setup(cmdclass={'build_py': build_py}, + ...) + +This approach is most valuable if the new implementations must be used to use a +particular package, as everyone interested in the package will need to have the +new command implementation. + +Beginning with Python 2.4, a third option is available, intended to allow new +commands to be added which can support existing :file:`setup.py` scripts without +requiring modifications to the Python installation. This is expected to allow +third-party extensions to provide support for additional packaging systems, but +the commands can be used for anything distutils commands can be used for. A new +configuration option, ``command_packages`` (command-line option +:option:`!--command-packages`), can be used to specify additional packages to be +searched for modules implementing commands. Like all distutils options, this +can be specified on the command line or in a configuration file. This option +can only be set in the ``[global]`` section of a configuration file, or before +any commands on the command line. If set in a configuration file, it can be +overridden from the command line; setting it to an empty string on the command +line causes the default to be used. This should never be set in a configuration +file provided with a package. + +This new option can be used to add any number of packages to the list of +packages searched for command implementations; multiple package names should be +separated by commas. When not specified, the search is only performed in the +:mod:`distutils.command` package. When :file:`setup.py` is run with the option +``--command-packages distcmds,buildcmds``, however, the packages +:mod:`distutils.command`, ``distcmds``, and ``buildcmds`` will be searched +in that order. New commands are expected to be implemented in modules of the +same name as the command by classes sharing the same name. Given the example +command line option above, the command :command:`bdist_openpkg` could be +implemented by the class ``distcmds.bdist_openpkg.bdist_openpkg`` or +``buildcmds.bdist_openpkg.bdist_openpkg``. + + +Adding new distribution types +============================= + +Commands that create distributions (files in the :file:`dist/` directory) need +to add ``(command, filename)`` pairs to ``self.distribution.dist_files`` so that +:command:`upload` can upload it to PyPI. The *filename* in the pair contains no +path information, only the name of the file itself. In dry-run mode, pairs +should still be added to represent what would have been created. diff --git a/docs/deprecated/distutils/index.rst b/docs/deprecated/distutils/index.rst new file mode 100644 index 0000000000..1f72a25542 --- /dev/null +++ b/docs/deprecated/distutils/index.rst @@ -0,0 +1,42 @@ +.. _distutils-index: + +############################################## + Distributing Python Modules (Legacy version) +############################################## + +:Authors: Greg Ward, Anthony Baxter +:Email: distutils-sig@python.org + +.. seealso:: + + :ref:`distributing-index` + The up to date module distribution documentations + +.. include:: ./_setuptools_disclaimer.rst + +.. note:: + + This guide only covers the basic tools for building and distributing + extensions that are provided as part of this version of Python. Third party + tools offer easier to use and more secure alternatives. Refer to the `quick + recommendations section `__ + in the Python Packaging User Guide for more information. + +This document describes the Python Distribution Utilities ("Distutils") from +the module developer's point of view, describing the underlying capabilities +that ``setuptools`` builds on to allow Python developers to make Python modules +and extensions readily available to a wider audience. + +.. toctree:: + :maxdepth: 2 + :numbered: + + introduction.rst + setupscript.rst + configfile.rst + sourcedist.rst + builtdist.rst + examples.rst + extending.rst + commandref.rst + apiref.rst diff --git a/docs/deprecated/distutils/introduction.rst b/docs/deprecated/distutils/introduction.rst new file mode 100644 index 0000000000..58a3128317 --- /dev/null +++ b/docs/deprecated/distutils/introduction.rst @@ -0,0 +1,203 @@ +.. _distutils-intro: + +**************************** +An Introduction to Distutils +**************************** + +.. include:: ./_setuptools_disclaimer.rst + +This document covers using the Distutils to distribute your Python modules, +concentrating on the role of developer/distributor: if you're looking for +information on installing Python modules, you should refer to the +:ref:`install-index` chapter. + + +.. _distutils-concepts: + +Concepts & Terminology +====================== + +Using the Distutils is quite simple, both for module developers and for +users/administrators installing third-party modules. As a developer, your +responsibilities (apart from writing solid, well-documented and well-tested +code, of course!) are: + +* write a setup script (:file:`setup.py` by convention) + +* (optional) write a setup configuration file + +* create a source distribution + +* (optional) create one or more built (binary) distributions + +Each of these tasks is covered in this document. + +Not all module developers have access to a multitude of platforms, so it's not +always feasible to expect them to create a multitude of built distributions. It +is hoped that a class of intermediaries, called *packagers*, will arise to +address this need. Packagers will take source distributions released by module +developers, build them on one or more platforms, and release the resulting built +distributions. Thus, users on the most popular platforms will be able to +install most popular Python module distributions in the most natural way for +their platform, without having to run a single setup script or compile a line of +code. + + +.. _distutils-simple-example: + +A Simple Example +================ + +The setup script is usually quite simple, although since it's written in Python, +there are no arbitrary limits to what you can do with it, though you should be +careful about putting arbitrarily expensive operations in your setup script. +Unlike, say, Autoconf-style configure scripts, the setup script may be run +multiple times in the course of building and installing your module +distribution. + +If all you want to do is distribute a module called ``foo``, contained in a +file :file:`foo.py`, then your setup script can be as simple as this:: + + from distutils.core import setup + setup(name='foo', + version='1.0', + py_modules=['foo'], + ) + +Some observations: + +* most information that you supply to the Distutils is supplied as keyword + arguments to the :func:`~distutils.core.setup` function + +* those keyword arguments fall into two categories: package metadata (name, + version number) and information about what's in the package (a list of pure + Python modules, in this case) + +* modules are specified by module name, not filename (the same will hold true + for packages and extensions) + +* it's recommended that you supply a little more metadata, in particular your + name, email address and a URL for the project (see section :ref:`setup-script` + for an example) + +To create a source distribution for this module, you would create a setup +script, :file:`setup.py`, containing the above code, and run this command from a +terminal:: + + python setup.py sdist + +For Windows, open a command prompt window (:menuselection:`Start --> +Accessories`) and change the command to:: + + setup.py sdist + +:command:`sdist` will create an archive file (e.g., tarball on Unix, ZIP file on Windows) +containing your setup script :file:`setup.py`, and your module :file:`foo.py`. +The archive file will be named :file:`foo-1.0.tar.gz` (or :file:`.zip`), and +will unpack into a directory :file:`foo-1.0`. + +If an end-user wishes to install your ``foo`` module, all they have to do is +download :file:`foo-1.0.tar.gz` (or :file:`.zip`), unpack it, and---from the +:file:`foo-1.0` directory---run :: + + python setup.py install + +which will ultimately copy :file:`foo.py` to the appropriate directory for +third-party modules in their Python installation. + +This simple example demonstrates some fundamental concepts of the Distutils. +First, both developers and installers have the same basic user interface, i.e. +the setup script. The difference is which Distutils *commands* they use: the +:command:`sdist` command is almost exclusively for module developers, while +:command:`install` is more often for installers (although most developers will +want to install their own code occasionally). + +Other useful built distribution formats are RPM, implemented by the +:command:`bdist_rpm` command, Solaris :program:`pkgtool` +(:command:`bdist_pkgtool`), and HP-UX :program:`swinstall` +(:command:`bdist_sdux`). For example, the following command will create an RPM +file called :file:`foo-1.0.noarch.rpm`:: + + python setup.py bdist_rpm + +(The :command:`bdist_rpm` command uses the :command:`rpm` executable, therefore +this has to be run on an RPM-based system such as Red Hat Linux, SuSE Linux, or +Mandrake Linux.) + +You can find out what distribution formats are available at any time by running +:: + + python setup.py bdist --help-formats + + +.. _python-terms: + +General Python terminology +========================== + +If you're reading this document, you probably have a good idea of what modules, +extensions, and so forth are. Nevertheless, just to be sure that everyone is +operating from a common starting point, we offer the following glossary of +common Python terms: + +module + the basic unit of code reusability in Python: a block of code imported by some + other code. Three types of modules concern us here: pure Python modules, + extension modules, and packages. + +pure Python module + a module written in Python and contained in a single :file:`.py` file (and + possibly associated :file:`.pyc` files). Sometimes referred to as a + "pure module." + +extension module + a module written in the low-level language of the Python implementation: C/C++ + for Python, Java for Jython. Typically contained in a single dynamically + loadable pre-compiled file, e.g. a shared object (:file:`.so`) file for Python + extensions on Unix, a DLL (given the :file:`.pyd` extension) for Python + extensions on Windows, or a Java class file for Jython extensions. (Note that + currently, the Distutils only handles C/C++ extensions for Python.) + +package + a module that contains other modules; typically contained in a directory in the + filesystem and distinguished from other directories by the presence of a file + :file:`__init__.py`. + +root package + the root of the hierarchy of packages. (This isn't really a package, since it + doesn't have an :file:`__init__.py` file. But we have to call it something.) + The vast majority of the standard library is in the root package, as are many + small, standalone third-party modules that don't belong to a larger module + collection. Unlike regular packages, modules in the root package can be found in + many directories: in fact, every directory listed in ``sys.path`` contributes + modules to the root package. + + +.. _distutils-term: + +Distutils-specific terminology +============================== + +The following terms apply more specifically to the domain of distributing Python +modules using the Distutils: + +module distribution + a collection of Python modules distributed together as a single downloadable + resource and meant to be installed *en masse*. Examples of some well-known + module distributions are NumPy, SciPy, Pillow, + or mxBase. (This would be called a *package*, except that term is + already taken in the Python context: a single module distribution may contain + zero, one, or many Python packages.) + +pure module distribution + a module distribution that contains only pure Python modules and packages. + Sometimes referred to as a "pure distribution." + +non-pure module distribution + a module distribution that contains at least one extension module. Sometimes + referred to as a "non-pure distribution." + +distribution root + the top-level directory of your source tree (or source distribution); the + directory where :file:`setup.py` exists. Generally :file:`setup.py` will be + run from this directory. diff --git a/docs/deprecated/distutils/packageindex.rst b/docs/deprecated/distutils/packageindex.rst new file mode 100644 index 0000000000..27ea717a78 --- /dev/null +++ b/docs/deprecated/distutils/packageindex.rst @@ -0,0 +1,15 @@ +:orphan: + +.. _package-index: + +******************************* +The Python Package Index (PyPI) +******************************* + +The `Python Package Index (PyPI) `_ stores +metadata describing distributions packaged with distutils and +other publishing tools, as well the distribution archives +themselves. + +The best resource for working with PyPI is the +`Python Packaging User Guide `_. diff --git a/docs/deprecated/distutils/setupscript.rst b/docs/deprecated/distutils/setupscript.rst new file mode 100644 index 0000000000..de68a5c320 --- /dev/null +++ b/docs/deprecated/distutils/setupscript.rst @@ -0,0 +1,715 @@ +.. _setup-script: + +************************ +Writing the Setup Script +************************ + +.. include:: ./_setuptools_disclaimer.rst + +The setup script is the centre of all activity in building, distributing, and +installing modules using the Distutils. The main purpose of the setup script is +to describe your module distribution to the Distutils, so that the various +commands that operate on your modules do the right thing. As we saw in section +:ref:`distutils-simple-example` above, the setup script consists mainly of a call to :func:`~distutils.core.setup`, and most information +supplied to the Distutils by the module developer is supplied as keyword +arguments to :func:`~distutils.core.setup`. + +Here's a slightly more involved example, which we'll follow for the next couple +of sections: the Distutils' own setup script. (Keep in mind that although the +Distutils are included with Python 1.6 and later, they also have an independent +existence so that Python 1.5.2 users can use them to install other module +distributions. The Distutils' own setup script, shown here, is used to install +the package into Python 1.5.2.) :: + + #!/usr/bin/env python + + from distutils.core import setup + + setup(name='Distutils', + version='1.0', + description='Python Distribution Utilities', + author='Greg Ward', + author_email='gward@python.net', + url='https://www.python.org/sigs/distutils-sig/', + packages=['distutils', 'distutils.command'], + ) + +There are only two differences between this and the trivial one-file +distribution presented in section :ref:`distutils-simple-example`: more metadata, and the +specification of pure Python modules by package, rather than by module. This is +important since the Distutils consist of a couple of dozen modules split into +(so far) two packages; an explicit list of every module would be tedious to +generate and difficult to maintain. For more information on the additional +meta-data, see section :ref:`meta-data`. + +Note that any pathnames (files or directories) supplied in the setup script +should be written using the Unix convention, i.e. slash-separated. The +Distutils will take care of converting this platform-neutral representation into +whatever is appropriate on your current platform before actually using the +pathname. This makes your setup script portable across operating systems, which +of course is one of the major goals of the Distutils. In this spirit, all +pathnames in this document are slash-separated. + +This, of course, only applies to pathnames given to Distutils functions. If +you, for example, use standard Python functions such as :func:`glob.glob` or +:func:`os.listdir` to specify files, you should be careful to write portable +code instead of hardcoding path separators:: + + glob.glob(os.path.join('mydir', 'subdir', '*.html')) + os.listdir(os.path.join('mydir', 'subdir')) + + +.. _listing-packages: + +Listing whole packages +====================== + +The ``packages`` option tells the Distutils to process (build, distribute, +install, etc.) all pure Python modules found in each package mentioned in the +``packages`` list. In order to do this, of course, there has to be a +correspondence between package names and directories in the filesystem. The +default correspondence is the most obvious one, i.e. package :mod:`distutils` is +found in the directory :file:`distutils` relative to the distribution root. +Thus, when you say ``packages = ['foo']`` in your setup script, you are +promising that the Distutils will find a file :file:`foo/__init__.py` (which +might be spelled differently on your system, but you get the idea) relative to +the directory where your setup script lives. If you break this promise, the +Distutils will issue a warning but still process the broken package anyway. + +If you use a different convention to lay out your source directory, that's no +problem: you just have to supply the ``package_dir`` option to tell the +Distutils about your convention. For example, say you keep all Python source +under :file:`lib`, so that modules in the "root package" (i.e., not in any +package at all) are in :file:`lib`, modules in the ``foo`` package are in +:file:`lib/foo`, and so forth. Then you would put :: + + package_dir = {'': 'lib'} + +in your setup script. The keys to this dictionary are package names, and an +empty package name stands for the root package. The values are directory names +relative to your distribution root. In this case, when you say ``packages = +['foo']``, you are promising that the file :file:`lib/foo/__init__.py` exists. + +Another possible convention is to put the ``foo`` package right in +:file:`lib`, the ``foo.bar`` package in :file:`lib/bar`, etc. This would be +written in the setup script as :: + + package_dir = {'foo': 'lib'} + +A ``package: dir`` entry in the ``package_dir`` dictionary implicitly +applies to all packages below *package*, so the ``foo.bar`` case is +automatically handled here. In this example, having ``packages = ['foo', +'foo.bar']`` tells the Distutils to look for :file:`lib/__init__.py` and +:file:`lib/bar/__init__.py`. (Keep in mind that although ``package_dir`` +applies recursively, you must explicitly list all packages in +``packages``: the Distutils will *not* recursively scan your source tree +looking for any directory with an :file:`__init__.py` file.) + + +.. _listing-modules: + +Listing individual modules +========================== + +For a small module distribution, you might prefer to list all modules rather +than listing packages---especially the case of a single module that goes in the +"root package" (i.e., no package at all). This simplest case was shown in +section :ref:`distutils-simple-example`; here is a slightly more involved example:: + + py_modules = ['mod1', 'pkg.mod2'] + +This describes two modules, one of them in the "root" package, the other in the +``pkg`` package. Again, the default package/directory layout implies that +these two modules can be found in :file:`mod1.py` and :file:`pkg/mod2.py`, and +that :file:`pkg/__init__.py` exists as well. And again, you can override the +package/directory correspondence using the ``package_dir`` option. + + +.. _describing-extensions: + +Describing extension modules +============================ + +Just as writing Python extension modules is a bit more complicated than writing +pure Python modules, describing them to the Distutils is a bit more complicated. +Unlike pure modules, it's not enough just to list modules or packages and expect +the Distutils to go out and find the right files; you have to specify the +extension name, source file(s), and any compile/link requirements (include +directories, libraries to link with, etc.). + +.. XXX read over this section + +All of this is done through another keyword argument to +:func:`~distutils.core.setup`, the +``ext_modules`` option. ``ext_modules`` is just a list of +:class:`~distutils.core.Extension` instances, each of which describes a +single extension module. +Suppose your distribution includes a single extension, called ``foo`` and +implemented by :file:`foo.c`. If no additional instructions to the +compiler/linker are needed, describing this extension is quite simple:: + + Extension('foo', ['foo.c']) + +The :class:`~distutils.extension.Extension` class can be imported from :mod:`distutils.core` along +with :func:`~distutils.core.setup`. Thus, the setup script for a module distribution that +contains only this one extension and nothing else might be:: + + from distutils.core import setup, Extension + setup(name='foo', + version='1.0', + ext_modules=[Extension('foo', ['foo.c'])], + ) + +The :class:`~distutils.extension.Extension` class (actually, the underlying extension-building +machinery implemented by the :command:`build_ext` command) supports a great deal +of flexibility in describing Python extensions, which is explained in the +following sections. + + +Extension names and packages +---------------------------- + +The first argument to the :class:`~distutils.core.Extension` constructor is +always the name of the extension, including any package names. For example, :: + + Extension('foo', ['src/foo1.c', 'src/foo2.c']) + +describes an extension that lives in the root package, while :: + + Extension('pkg.foo', ['src/foo1.c', 'src/foo2.c']) + +describes the same extension in the ``pkg`` package. The source files and +resulting object code are identical in both cases; the only difference is where +in the filesystem (and therefore where in Python's namespace hierarchy) the +resulting extension lives. + +If you have a number of extensions all in the same package (or all under the +same base package), use the ``ext_package`` keyword argument to +:func:`~distutils.core.setup`. For example, :: + + setup(..., + ext_package='pkg', + ext_modules=[Extension('foo', ['foo.c']), + Extension('subpkg.bar', ['bar.c'])], + ) + +will compile :file:`foo.c` to the extension ``pkg.foo``, and +:file:`bar.c` to ``pkg.subpkg.bar``. + + +Extension source files +---------------------- + +The second argument to the :class:`~distutils.core.Extension` constructor is +a list of source +files. Since the Distutils currently only support C, C++, and Objective-C +extensions, these are normally C/C++/Objective-C source files. (Be sure to use +appropriate extensions to distinguish C++ source files: :file:`.cc` and +:file:`.cpp` seem to be recognized by both Unix and Windows compilers.) + +However, you can also include SWIG interface (:file:`.i`) files in the list; the +:command:`build_ext` command knows how to deal with SWIG extensions: it will run +SWIG on the interface file and compile the resulting C/C++ file into your +extension. + +.. XXX SWIG support is rough around the edges and largely untested! + +This warning notwithstanding, options to SWIG can be currently passed like +this:: + + setup(..., + ext_modules=[Extension('_foo', ['foo.i'], + swig_opts=['-modern', '-I../include'])], + py_modules=['foo'], + ) + +Or on the commandline like this:: + + > python setup.py build_ext --swig-opts="-modern -I../include" + +On some platforms, you can include non-source files that are processed by the +compiler and included in your extension. Currently, this just means Windows +message text (:file:`.mc`) files and resource definition (:file:`.rc`) files for +Visual C++. These will be compiled to binary resource (:file:`.res`) files and +linked into the executable. + + +Preprocessor options +-------------------- + +Three optional arguments to :class:`~distutils.core.Extension` will help if +you need to specify include directories to search or preprocessor macros to +define/undefine: ``include_dirs``, ``define_macros``, and ``undef_macros``. + +For example, if your extension requires header files in the :file:`include` +directory under your distribution root, use the ``include_dirs`` option:: + + Extension('foo', ['foo.c'], include_dirs=['include']) + +You can specify absolute directories there; if you know that your extension will +only be built on Unix systems with X11R6 installed to :file:`/usr`, you can get +away with :: + + Extension('foo', ['foo.c'], include_dirs=['/usr/include/X11']) + +You should avoid this sort of non-portable usage if you plan to distribute your +code: it's probably better to write C code like :: + + #include + +If you need to include header files from some other Python extension, you can +take advantage of the fact that header files are installed in a consistent way +by the Distutils :command:`install_headers` command. For example, the Numerical +Python header files are installed (on a standard Unix installation) to +:file:`/usr/local/include/python1.5/Numerical`. (The exact location will differ +according to your platform and Python installation.) Since the Python include +directory---\ :file:`/usr/local/include/python1.5` in this case---is always +included in the search path when building Python extensions, the best approach +is to write C code like :: + + #include + +If you must put the :file:`Numerical` include directory right into your header +search path, though, you can find that directory using the Distutils +:mod:`distutils.sysconfig` module:: + + from distutils.sysconfig import get_python_inc + incdir = os.path.join(get_python_inc(plat_specific=True), 'Numerical') + setup(..., + Extension(..., include_dirs=[incdir]), + ) + +Even though this is quite portable---it will work on any Python installation, +regardless of platform---it's probably easier to just write your C code in the +sensible way. + +You can define and undefine pre-processor macros with the ``define_macros`` and +``undef_macros`` options. ``define_macros`` takes a list of ``(name, value)`` +tuples, where ``name`` is the name of the macro to define (a string) and +``value`` is its value: either a string or ``None``. (Defining a macro ``FOO`` +to ``None`` is the equivalent of a bare ``#define FOO`` in your C source: with +most compilers, this sets ``FOO`` to the string ``1``.) ``undef_macros`` is +just a list of macros to undefine. + +For example:: + + Extension(..., + define_macros=[('NDEBUG', '1'), + ('HAVE_STRFTIME', None)], + undef_macros=['HAVE_FOO', 'HAVE_BAR']) + +is the equivalent of having this at the top of every C source file:: + + #define NDEBUG 1 + #define HAVE_STRFTIME + #undef HAVE_FOO + #undef HAVE_BAR + + +Library options +--------------- + +You can also specify the libraries to link against when building your extension, +and the directories to search for those libraries. The ``libraries`` option is +a list of libraries to link against, ``library_dirs`` is a list of directories +to search for libraries at link-time, and ``runtime_library_dirs`` is a list of +directories to search for shared (dynamically loaded) libraries at run-time. + +For example, if you need to link against libraries known to be in the standard +library search path on target systems :: + + Extension(..., + libraries=['gdbm', 'readline']) + +If you need to link with libraries in a non-standard location, you'll have to +include the location in ``library_dirs``:: + + Extension(..., + library_dirs=['/usr/X11R6/lib'], + libraries=['X11', 'Xt']) + +(Again, this sort of non-portable construct should be avoided if you intend to +distribute your code.) + +.. XXX Should mention clib libraries here or somewhere else! + + +Other options +------------- + +There are still some other options which can be used to handle special cases. + +The ``optional`` option is a boolean; if it is true, +a build failure in the extension will not abort the build process, but +instead simply not install the failing extension. + +The ``extra_objects`` option is a list of object files to be passed to the +linker. These files must not have extensions, as the default extension for the +compiler is used. + +``extra_compile_args`` and ``extra_link_args`` can be used to +specify additional command line options for the respective compiler and linker +command lines. + +``export_symbols`` is only useful on Windows. It can contain a list of +symbols (functions or variables) to be exported. This option is not needed when +building compiled extensions: Distutils will automatically add ``initmodule`` +to the list of exported symbols. + +The ``depends`` option is a list of files that the extension depends on +(for example header files). The build command will call the compiler on the +sources to rebuild extension if any on this files has been modified since the +previous build. + +Relationships between Distributions and Packages +================================================ + +A distribution may relate to packages in three specific ways: + +#. It can require packages or modules. + +#. It can provide packages or modules. + +#. It can obsolete packages or modules. + +These relationships can be specified using keyword arguments to the +:func:`distutils.core.setup` function. + +Dependencies on other Python modules and packages can be specified by supplying +the *requires* keyword argument to :func:`~distutils.core.setup`. The +value must be a list of +strings. Each string specifies a package that is required, and optionally what +versions are sufficient. + +To specify that any version of a module or package is required, the string +should consist entirely of the module or package name. Examples include +``'mymodule'`` and ``'xml.parsers.expat'``. + +If specific versions are required, a sequence of qualifiers can be supplied in +parentheses. Each qualifier may consist of a comparison operator and a version +number. The accepted comparison operators are:: + + < > == + <= >= != + +These can be combined by using multiple qualifiers separated by commas (and +optional whitespace). In this case, all of the qualifiers must be matched; a +logical AND is used to combine the evaluations. + +Let's look at a bunch of examples: + ++-------------------------+----------------------------------------------+ +| Requires Expression | Explanation | ++=========================+==============================================+ +| ``==1.0`` | Only version ``1.0`` is compatible | ++-------------------------+----------------------------------------------+ +| ``>1.0, !=1.5.1, <2.0`` | Any version after ``1.0`` and before ``2.0`` | +| | is compatible, except ``1.5.1`` | ++-------------------------+----------------------------------------------+ + +Now that we can specify dependencies, we also need to be able to specify what we +provide that other distributions can require. This is done using the *provides* +keyword argument to :func:`~distutils.core.setup`. The value for this keyword is a list of +strings, each of which names a Python module or package, and optionally +identifies the version. If the version is not specified, it is assumed to match +that of the distribution. + +Some examples: + ++---------------------+----------------------------------------------+ +| Provides Expression | Explanation | ++=====================+==============================================+ +| ``mypkg`` | Provide ``mypkg``, using the distribution | +| | version | ++---------------------+----------------------------------------------+ +| ``mypkg (1.1)`` | Provide ``mypkg`` version 1.1, regardless of | +| | the distribution version | ++---------------------+----------------------------------------------+ + +A package can declare that it obsoletes other packages using the *obsoletes* +keyword argument. The value for this is similar to that of the *requires* +keyword: a list of strings giving module or package specifiers. Each specifier +consists of a module or package name optionally followed by one or more version +qualifiers. Version qualifiers are given in parentheses after the module or +package name. + +The versions identified by the qualifiers are those that are obsoleted by the +distribution being described. If no qualifiers are given, all versions of the +named module or package are understood to be obsoleted. + +.. _distutils-installing-scripts: + +Installing Scripts +================== + +So far we have been dealing with pure and non-pure Python modules, which are +usually not run by themselves but imported by scripts. + +Scripts are files containing Python source code, intended to be started from the +command line. Scripts don't require Distutils to do anything very complicated. +The only clever feature is that if the first line of the script starts with +``#!`` and contains the word "python", the Distutils will adjust the first line +to refer to the current interpreter location. By default, it is replaced with +the current interpreter location. The :option:`!--executable` (or :option:`!-e`) +option will allow the interpreter path to be explicitly overridden. + +The ``scripts`` option simply is a list of files to be handled in this +way. From the PyXML setup script:: + + setup(..., + scripts=['scripts/xmlproc_parse', 'scripts/xmlproc_val'] + ) + +.. versionchanged:: 3.1 + All the scripts will also be added to the ``MANIFEST`` file if no template is + provided. See :ref:`manifest`. + + +.. _distutils-installing-package-data: + +Installing Package Data +======================= + +Often, additional files need to be installed into a package. These files are +often data that's closely related to the package's implementation, or text files +containing documentation that might be of interest to programmers using the +package. These files are called :dfn:`package data`. + +Package data can be added to packages using the ``package_data`` keyword +argument to the :func:`~distutils.core.setup` function. The value must be a mapping from +package name to a list of relative path names that should be copied into the +package. The paths are interpreted as relative to the directory containing the +package (information from the ``package_dir`` mapping is used if appropriate); +that is, the files are expected to be part of the package in the source +directories. They may contain glob patterns as well. + +The path names may contain directory portions; any necessary directories will be +created in the installation. + +For example, if a package should contain a subdirectory with several data files, +the files can be arranged like this in the source tree:: + + setup.py + src/ + mypkg/ + __init__.py + module.py + data/ + tables.dat + spoons.dat + forks.dat + +The corresponding call to :func:`~distutils.core.setup` might be:: + + setup(..., + packages=['mypkg'], + package_dir={'mypkg': 'src/mypkg'}, + package_data={'mypkg': ['data/*.dat']}, + ) + + +.. versionchanged:: 3.1 + All the files that match ``package_data`` will be added to the ``MANIFEST`` + file if no template is provided. See :ref:`manifest`. + + +.. _distutils-additional-files: + +Installing Additional Files +=========================== + +The ``data_files`` option can be used to specify additional files needed +by the module distribution: configuration files, message catalogs, data files, +anything which doesn't fit in the previous categories. + +``data_files`` specifies a sequence of (*directory*, *files*) pairs in the +following way:: + + setup(..., + data_files=[('bitmaps', ['bm/b1.gif', 'bm/b2.gif']), + ('config', ['cfg/data.cfg'])], + ) + +Each (*directory*, *files*) pair in the sequence specifies the installation +directory and the files to install there. + +Each file name in *files* is interpreted relative to the :file:`setup.py` +script at the top of the package source distribution. Note that you can +specify the directory where the data files will be installed, but you cannot +rename the data files themselves. + +The *directory* should be a relative path. It is interpreted relative to the +installation prefix (Python's ``sys.prefix`` for system installations; +``site.USER_BASE`` for user installations). Distutils allows *directory* to be +an absolute installation path, but this is discouraged since it is +incompatible with the wheel packaging format. No directory information from +*files* is used to determine the final location of the installed file; only +the name of the file is used. + +You can specify the ``data_files`` options as a simple sequence of files +without specifying a target directory, but this is not recommended, and the +:command:`install` command will print a warning in this case. To install data +files directly in the target directory, an empty string should be given as the +directory. + +.. versionchanged:: 3.1 + All the files that match ``data_files`` will be added to the ``MANIFEST`` + file if no template is provided. See :ref:`manifest`. + + +.. _meta-data: + +Additional meta-data +==================== + +The setup script may include additional meta-data beyond the name and version. +This information includes: + ++----------------------+---------------------------+-----------------+--------+ +| Meta-Data | Description | Value | Notes | ++======================+===========================+=================+========+ +| ``name`` | name of the package | short string | \(1) | ++----------------------+---------------------------+-----------------+--------+ +| ``version`` | version of this release | short string | (1)(2) | ++----------------------+---------------------------+-----------------+--------+ +| ``author`` | package author's name | short string | \(3) | ++----------------------+---------------------------+-----------------+--------+ +| ``author_email`` | email address of the | email address | \(3) | +| | package author | | | ++----------------------+---------------------------+-----------------+--------+ +| ``maintainer`` | package maintainer's name | short string | \(3) | ++----------------------+---------------------------+-----------------+--------+ +| ``maintainer_email`` | email address of the | email address | \(3) | +| | package maintainer | | | ++----------------------+---------------------------+-----------------+--------+ +| ``url`` | home page for the package | URL | | ++----------------------+---------------------------+-----------------+--------+ +| ``description`` | short, summary | short string | | +| | description of the | | | +| | package | | | ++----------------------+---------------------------+-----------------+--------+ +| ``long_description`` | longer description of the | long string | \(4) | +| | package | | | ++----------------------+---------------------------+-----------------+--------+ +| ``download_url`` | location where the | URL | | +| | package may be downloaded | | | ++----------------------+---------------------------+-----------------+--------+ +| ``classifiers`` | a list of classifiers | list of strings | (6)(7) | ++----------------------+---------------------------+-----------------+--------+ +| ``platforms`` | a list of platforms | list of strings | (6)(8) | ++----------------------+---------------------------+-----------------+--------+ +| ``keywords`` | a list of keywords | list of strings | (6)(8) | ++----------------------+---------------------------+-----------------+--------+ +| ``license`` | license for the package | short string | \(5) | ++----------------------+---------------------------+-----------------+--------+ + +Notes: + +(1) + These fields are required. + +(2) + It is recommended that versions take the form *major.minor[.patch[.sub]]*. + +(3) + If maintainer is provided and author is not, distutils lists maintainer as + the author in :file:`PKG-INFO`. + +(4) + The ``long_description`` field is used by PyPI when you publish a package, + to build its project page. + +(5) + The ``license`` field is a text indicating the license covering the + package where the license is not a selection from the "License" Trove + classifiers. See the ``Classifier`` field. Notice that + there's a ``licence`` distribution option which is deprecated but still + acts as an alias for ``license``. + +(6) + This field must be a list. + +(7) + The valid classifiers are listed on + `PyPI `_. + +(8) + To preserve backward compatibility, this field also accepts a string. If + you pass a comma-separated string ``'foo, bar'``, it will be converted to + ``['foo', 'bar']``, Otherwise, it will be converted to a list of one + string. + +'short string' + A single line of text, not more than 200 characters. + +'long string' + Multiple lines of plain text in reStructuredText format (see + https://docutils.sourceforge.io/). + +'list of strings' + See below. + +Encoding the version information is an art in itself. Python packages generally +adhere to the version format *major.minor[.patch][sub]*. The major number is 0 +for initial, experimental releases of software. It is incremented for releases +that represent major milestones in a package. The minor number is incremented +when important new features are added to the package. The patch number +increments when bug-fix releases are made. Additional trailing version +information is sometimes used to indicate sub-releases. These are +"a1,a2,...,aN" (for alpha releases, where functionality and API may change), +"b1,b2,...,bN" (for beta releases, which only fix bugs) and "pr1,pr2,...,prN" +(for final pre-release release testing). Some examples: + +0.1.0 + the first, experimental release of a package + +1.0.1a2 + the second alpha release of the first patch version of 1.0 + +``classifiers`` must be specified in a list:: + + setup(..., + classifiers=[ + 'Development Status :: 4 - Beta', + 'Environment :: Console', + 'Environment :: Web Environment', + 'Intended Audience :: End Users/Desktop', + 'Intended Audience :: Developers', + 'Intended Audience :: System Administrators', + 'License :: OSI Approved :: Python Software Foundation License', + 'Operating System :: MacOS :: MacOS X', + 'Operating System :: Microsoft :: Windows', + 'Operating System :: POSIX', + 'Programming Language :: Python', + 'Topic :: Communications :: Email', + 'Topic :: Office/Business', + 'Topic :: Software Development :: Bug Tracking', + ], + ) + +.. versionchanged:: 3.7 + :class:`~distutils.core.setup` now warns when ``classifiers``, ``keywords`` + or ``platforms`` fields are not specified as a list or a string. + +.. _debug-setup-script: + +Debugging the setup script +========================== + +Sometimes things go wrong, and the setup script doesn't do what the developer +wants. + +Distutils catches any exceptions when running the setup script, and print a +simple error message before the script is terminated. The motivation for this +behaviour is to not confuse administrators who don't know much about Python and +are trying to install a package. If they get a big long traceback from deep +inside the guts of Distutils, they may think the package or the Python +installation is broken because they don't read all the way down to the bottom +and see that it's a permission problem. + +On the other hand, this doesn't help the developer to find the cause of the +failure. For this purpose, the :envvar:`DISTUTILS_DEBUG` environment variable can be set +to anything except an empty string, and distutils will now print detailed +information about what it is doing, dump the full traceback when an exception +occurs, and print the whole command line when an external program (like a C +compiler) fails. diff --git a/docs/deprecated/distutils/sourcedist.rst b/docs/deprecated/distutils/sourcedist.rst new file mode 100644 index 0000000000..0600663d00 --- /dev/null +++ b/docs/deprecated/distutils/sourcedist.rst @@ -0,0 +1,242 @@ +.. _source-dist: + +****************************** +Creating a Source Distribution +****************************** + +.. include:: ./_setuptools_disclaimer.rst + +As shown in section :ref:`distutils-simple-example`, you use the :command:`sdist` command +to create a source distribution. In the simplest case, :: + + python setup.py sdist + +(assuming you haven't specified any :command:`sdist` options in the setup script +or config file), :command:`sdist` creates the archive of the default format for +the current platform. The default format is a gzip'ed tar file +(:file:`.tar.gz`) on Unix, and ZIP file on Windows. + +You can specify as many formats as you like using the :option:`!--formats` +option, for example:: + + python setup.py sdist --formats=gztar,zip + +to create a gzipped tarball and a zip file. The available formats are: + ++-----------+-------------------------+---------+ +| Format | Description | Notes | ++===========+=========================+=========+ +| ``zip`` | zip file (:file:`.zip`) | (1),(3) | ++-----------+-------------------------+---------+ +| ``gztar`` | gzip'ed tar file | \(2) | +| | (:file:`.tar.gz`) | | ++-----------+-------------------------+---------+ +| ``bztar`` | bzip2'ed tar file | | +| | (:file:`.tar.bz2`) | | ++-----------+-------------------------+---------+ +| ``xztar`` | xz'ed tar file | | +| | (:file:`.tar.xz`) | | ++-----------+-------------------------+---------+ +| ``ztar`` | compressed tar file | \(4) | +| | (:file:`.tar.Z`) | | ++-----------+-------------------------+---------+ +| ``tar`` | tar file (:file:`.tar`) | | ++-----------+-------------------------+---------+ + +.. versionchanged:: 3.5 + Added support for the ``xztar`` format. + +Notes: + +(1) + default on Windows + +(2) + default on Unix + +(3) + requires either external :program:`zip` utility or :mod:`zipfile` module (part + of the standard Python library since Python 1.6) + +(4) + requires the :program:`compress` program. Notice that this format is now + pending for deprecation and will be removed in the future versions of Python. + +When using any ``tar`` format (``gztar``, ``bztar``, ``xztar``, ``ztar`` or +``tar``), under Unix you can specify the ``owner`` and ``group`` names +that will be set for each member of the archive. + +For example, if you want all files of the archive to be owned by root:: + + python setup.py sdist --owner=root --group=root + + +.. _manifest: + +Specifying the files to distribute +================================== + +If you don't supply an explicit list of files (or instructions on how to +generate one), the :command:`sdist` command puts a minimal default set into the +source distribution: + +* all Python source files implied by the ``py_modules`` and + ``packages`` options + +* all C source files mentioned in the ``ext_modules`` or + ``libraries`` options + + .. XXX getting C library sources currently broken---no + :meth:`get_source_files` method in :file:`build_clib.py`! + +* scripts identified by the ``scripts`` option + See :ref:`distutils-installing-scripts`. + +* anything that looks like a test script: :file:`test/test\*.py` (currently, the + Distutils don't do anything with test scripts except include them in source + distributions, but in the future there will be a standard for testing Python + module distributions) + +* Any of the standard README files (:file:`README`, :file:`README.txt`, + or :file:`README.rst`), :file:`setup.py` (or whatever you called your setup + script), and :file:`setup.cfg`. + +* all files that matches the ``package_data`` metadata. + See :ref:`distutils-installing-package-data`. + +* all files that matches the ``data_files`` metadata. + See :ref:`distutils-additional-files`. + +Sometimes this is enough, but usually you will want to specify additional files +to distribute. The typical way to do this is to write a *manifest template*, +called :file:`MANIFEST.in` by default. The manifest template is just a list of +instructions for how to generate your manifest file, :file:`MANIFEST`, which is +the exact list of files to include in your source distribution. The +:command:`sdist` command processes this template and generates a manifest based +on its instructions and what it finds in the filesystem. + +If you prefer to roll your own manifest file, the format is simple: one filename +per line, regular files (or symlinks to them) only. If you do supply your own +:file:`MANIFEST`, you must specify everything: the default set of files +described above does not apply in this case. + +.. versionchanged:: 3.1 + An existing generated :file:`MANIFEST` will be regenerated without + :command:`sdist` comparing its modification time to the one of + :file:`MANIFEST.in` or :file:`setup.py`. + +.. versionchanged:: 3.1.3 + :file:`MANIFEST` files start with a comment indicating they are generated. + Files without this comment are not overwritten or removed. + +.. versionchanged:: 3.2.2 + :command:`sdist` will read a :file:`MANIFEST` file if no :file:`MANIFEST.in` + exists, like it used to do. + +.. versionchanged:: 3.7 + :file:`README.rst` is now included in the list of distutils standard READMEs. + + +The manifest template has one command per line, where each command specifies a +set of files to include or exclude from the source distribution. For an +example, again we turn to the Distutils' own manifest template: + +.. code-block:: none + + include *.txt + recursive-include examples *.txt *.py + prune examples/sample?/build + +The meanings should be fairly clear: include all files in the distribution root +matching :file:`\*.txt`, all files anywhere under the :file:`examples` directory +matching :file:`\*.txt` or :file:`\*.py`, and exclude all directories matching +:file:`examples/sample?/build`. All of this is done *after* the standard +include set, so you can exclude files from the standard set with explicit +instructions in the manifest template. (Or, you can use the +:option:`!--no-defaults` option to disable the standard set entirely.) There are +several other commands available in the manifest template mini-language; see +section :ref:`sdist-cmd`. + +The order of commands in the manifest template matters: initially, we have the +list of default files as described above, and each command in the template adds +to or removes from that list of files. Once we have fully processed the +manifest template, we remove files that should not be included in the source +distribution: + +* all files in the Distutils "build" tree (default :file:`build/`) + +* all files in directories named :file:`RCS`, :file:`CVS`, :file:`.svn`, + :file:`.hg`, :file:`.git`, :file:`.bzr` or :file:`_darcs` + +Now we have our complete list of files, which is written to the manifest for +future reference, and then used to build the source distribution archive(s). + +You can disable the default set of included files with the +:option:`!--no-defaults` option, and you can disable the standard exclude set +with :option:`!--no-prune`. + +Following the Distutils' own manifest template, let's trace how the +:command:`sdist` command builds the list of files to include in the Distutils +source distribution: + +#. include all Python source files in the :file:`distutils` and + :file:`distutils/command` subdirectories (because packages corresponding to + those two directories were mentioned in the ``packages`` option in the + setup script---see section :ref:`setup-script`) + +#. include :file:`README.txt`, :file:`setup.py`, and :file:`setup.cfg` (standard + files) + +#. include :file:`test/test\*.py` (standard files) + +#. include :file:`\*.txt` in the distribution root (this will find + :file:`README.txt` a second time, but such redundancies are weeded out later) + +#. include anything matching :file:`\*.txt` or :file:`\*.py` in the sub-tree + under :file:`examples`, + +#. exclude all files in the sub-trees starting at directories matching + :file:`examples/sample?/build`\ ---this may exclude files included by the + previous two steps, so it's important that the ``prune`` command in the manifest + template comes after the ``recursive-include`` command + +#. exclude the entire :file:`build` tree, and any :file:`RCS`, :file:`CVS`, + :file:`.svn`, :file:`.hg`, :file:`.git`, :file:`.bzr` and :file:`_darcs` + directories + +Just like in the setup script, file and directory names in the manifest template +should always be slash-separated; the Distutils will take care of converting +them to the standard representation on your platform. That way, the manifest +template is portable across operating systems. + + +.. _manifest-options: + +Manifest-related options +======================== + +The normal course of operations for the :command:`sdist` command is as follows: + +* if the manifest file (:file:`MANIFEST` by default) exists and the first line + does not have a comment indicating it is generated from :file:`MANIFEST.in`, + then it is used as is, unaltered + +* if the manifest file doesn't exist or has been previously automatically + generated, read :file:`MANIFEST.in` and create the manifest + +* if neither :file:`MANIFEST` nor :file:`MANIFEST.in` exist, create a manifest + with just the default file set + +* use the list of files now in :file:`MANIFEST` (either just generated or read + in) to create the source distribution archive(s) + +There are a couple of options that modify this behaviour. First, use the +:option:`!--no-defaults` and :option:`!--no-prune` to disable the standard +"include" and "exclude" sets. + +Second, you might just want to (re)generate the manifest, but not create a source +distribution:: + + python setup.py sdist --manifest-only + +:option:`!-o` is a shortcut for :option:`!--manifest-only`. diff --git a/docs/deprecated/distutils/uploading.rst b/docs/deprecated/distutils/uploading.rst new file mode 100644 index 0000000000..f5c4c619ab --- /dev/null +++ b/docs/deprecated/distutils/uploading.rst @@ -0,0 +1,9 @@ +:orphan: + +*************************************** +Uploading Packages to the Package Index +*************************************** + +See the +`Python Packaging User Guide `_ +for the best guidance on uploading packages. diff --git a/docs/easy_install.txt b/docs/deprecated/easy_install.rst similarity index 53% rename from docs/easy_install.txt rename to docs/deprecated/easy_install.rst index ff0ad3d892..ab3d38a061 100644 --- a/docs/easy_install.txt +++ b/docs/deprecated/easy_install.rst @@ -2,6 +2,12 @@ Easy Install ============ +.. warning:: + Easy Install is deprecated. Do not use it. Instead use pip. If + you think you need Easy Install, please reach out to the PyPA + team (a ticket to pip or setuptools is fine), describing your + use-case. + Easy Install is a python module (``easy_install``) bundled with ``setuptools`` that lets you automatically download, build, install, and manage Python packages. @@ -17,10 +23,7 @@ bug -- and then do so via list discussion first.) (Also, if you'd like to learn about how you can use ``setuptools`` to make your own packages work better with EasyInstall, or provide EasyInstall-like features without requiring your users to use EasyInstall directly, you'll probably want -to check out the full `setuptools`_ documentation as well.) - -.. contents:: **Table of Contents** - +to check out the full documentation as well.) Using "Easy Install" ==================== @@ -31,16 +34,15 @@ Using "Easy Install" Installing "Easy Install" ------------------------- -Please see the `setuptools PyPI page `_ +Please see the :pypi:`setuptools` on the package index for download links and basic installation instructions for each of the supported platforms. -You will need at least Python 2.3.5, or if you are on a 64-bit platform, Python -2.4. An ``easy_install`` script will be installed in the normal location for -Python scripts on your platform. +You will need at least Python 3.5 or 2.7. An ``easy_install`` script will be +installed in the normal location for Python scripts on your platform. Note that the instructions on the setuptools PyPI page assume that you are -are installling to Python's primary ``site-packages`` directory. If this is +are installing to Python's primary ``site-packages`` directory. If this is not the case, you should consult the section below on `Custom Installation Locations`_ before installing. (And, on Windows, you should not use the ``.exe`` installer when installing to an alternate location.) @@ -77,25 +79,10 @@ section on `Custom Installation Locations`_ for more details. Windows Notes ~~~~~~~~~~~~~ -On Windows, an ``easy_install.exe`` launcher will also be installed, so that -you can just type ``easy_install`` as long as it's on your ``PATH``. If typing -``easy_install`` at the command prompt doesn't work, check to make sure your -``PATH`` includes the appropriate ``C:\\Python2X\\Scripts`` directory. On -most current versions of Windows, you can change the ``PATH`` by right-clicking -"My Computer", choosing "Properties" and selecting the "Advanced" tab, then -clicking the "Environment Variables" button. ``PATH`` will be in the "System -Variables" section, and you will need to exit and restart your command shell -(command.com, cmd.exe, bash, or other) for the change to take effect. Be sure -to add a ``;`` after the last item on ``PATH`` before adding the scripts -directory to it. - -Note that instead of changing your ``PATH`` to include the Python scripts -directory, you can also retarget the installation location for scripts so they -go on a directory that's already on the ``PATH``. For more information see the -sections below on `Command-Line Options`_ and `Configuration Files`_. You -can pass command line options (such as ``--script-dir``) to -``distribute_setup.py`` to control where ``easy_install.exe`` will be installed. - +Installing setuptools will provide an ``easy_install`` command according to +the techniques described in `Executables and Launchers`_. If the +``easy_install`` command is not available after installation, that section +provides details on how to configure Windows to make the commands available. Downloading and Installing a Package @@ -144,6 +131,10 @@ and Viewing Source Packages`_ below for more info.):: easy_install --editable --build-directory ~/projects SQLObject +**Example 7**. (New in 0.6.11) Install a distribution within your home dir:: + + easy_install --user SQLAlchemy + Easy Install accepts URLs, filenames, PyPI package names (i.e., ``distutils`` "distribution" names), and package+version specifiers. In each case, it will attempt to locate the latest available version that meets your criteria. @@ -301,24 +292,79 @@ installations, so that Python won't lock us out of using anything but the most recently-installed version of the package.) +Executables and Launchers +------------------------- + +On Unix systems, scripts are installed with as natural files with a "#!" +header and no extension and they launch under the Python version indicated in +the header. + +On Windows, there is no mechanism to "execute" files without extensions, so +EasyInstall provides two techniques to mirror the Unix behavior. The behavior +is indicated by the SETUPTOOLS_LAUNCHER environment variable, which may be +"executable" (default) or "natural". + +Regardless of the technique used, the script(s) will be installed to a Scripts +directory (by default in the Python installation directory). It is recommended +for EasyInstall that you ensure this directory is in the PATH environment +variable. The easiest way to ensure the Scripts directory is in the PATH is +to run ``Tools\Scripts\win_add2path.py`` from the Python directory. + +Note that instead of changing your ``PATH`` to include the Python scripts +directory, you can also retarget the installation location for scripts so they +go on a directory that's already on the ``PATH``. For more information see +`Command-Line Options`_ and `Configuration Files`_. During installation, +pass command line options (such as ``--script-dir``) to control where +scripts will be installed. + + +Windows Executable Launcher +~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +If the "executable" launcher is used, EasyInstall will create a '.exe' +launcher of the same name beside each installed script (including +``easy_install`` itself). These small .exe files launch the script of the +same name using the Python version indicated in the '#!' header. + +This behavior is currently default. To force +the use of executable launchers, set ``SETUPTOOLS_LAUNCHER`` to "executable". + +Natural Script Launcher +~~~~~~~~~~~~~~~~~~~~~~~ + +EasyInstall also supports deferring to an external launcher such as +`pylauncher `_ for launching scripts. +Enable this experimental functionality by setting the +``SETUPTOOLS_LAUNCHER`` environment variable to "natural". EasyInstall will +then install scripts as simple +scripts with a .pya (or .pyw) extension appended. If these extensions are +associated with the pylauncher and listed in the PATHEXT environment variable, +these scripts can then be invoked simply and directly just like any other +executable. This behavior may become default in a future version. + +EasyInstall uses the .pya extension instead of simply +the typical '.py' extension. This distinct extension is necessary to prevent +Python +from treating the scripts as importable modules (where name conflicts exist). +Current releases of pylauncher do not yet associate with .pya files by +default, but future versions should do so. + Tips & Techniques ----------------- - Multiple Python Versions ~~~~~~~~~~~~~~~~~~~~~~~~ -As of version 0.6a11, EasyInstall installs itself under two names: +EasyInstall installs itself under two names: ``easy_install`` and ``easy_install-N.N``, where ``N.N`` is the Python version -used to install it. Thus, if you install EasyInstall for both Python 2.3 and -2.4, you can use the ``easy_install-2.3`` or ``easy_install-2.4`` scripts to -install packages for Python 2.3 or 2.4, respectively. - -Also, if you're working with Python version 2.4 or higher, you can run Python -with ``-m easy_install`` to run that particular Python version's -``easy_install`` command. +used to install it. Thus, if you install EasyInstall for both Python 3.2 and +2.7, you can use the ``easy_install-3.2`` or ``easy_install-2.7`` scripts to +install packages for the respective Python version. +Setuptools also supplies easy_install as a runnable module which may be +invoked using ``python -m easy_install`` for any Python with Setuptools +installed. Restricting Downloads with ``--allow-hosts`` ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ @@ -330,7 +376,9 @@ to restrict downloading to hosts in your own intranet. See the section below on `Command-Line Options`_ for more details on the ``--allow-hosts`` option. By default, there are no host restrictions in effect, but you can change this -default by editing the appropriate `configuration files`_ and adding:: +default by editing the appropriate `configuration files`_ and adding: + +.. code-block:: ini [easy_install] allow_hosts = *.myintranet.example.com,*.python.org @@ -411,7 +459,9 @@ generated directory listing (such as the Apache web server provides). If you are setting up an intranet site for package downloads, you may want to configure the target machines to use your download site by default, adding -something like this to their `configuration files`_:: +something like this to their `configuration files`_: + +.. code-block:: ini [easy_install] find_links = http://mypackages.example.com/somedir/ @@ -438,6 +488,15 @@ You can do this with both index page URLs and direct download URLs. As long as any HTML pages read by easy_install use *relative* links to point to the downloads, the same user ID and password will be used to do the downloading. +Using .pypirc Credentials +------------------------- + +In additional to supplying credentials in the URL, ``easy_install`` will also +honor credentials if present in the .pypirc file. Teams maintaining a private +repository of packages may already have defined access credentials for +uploading packages according to the distutils documentation. ``easy_install`` +will attempt to honor those if present. Refer to the distutils documentation +for Python 2.5 or later for details on the syntax. Controlling Build Options ~~~~~~~~~~~~~~~~~~~~~~~~~ @@ -445,7 +504,9 @@ Controlling Build Options EasyInstall respects standard distutils `Configuration Files`_, so you can use them to configure build options for packages that it installs from source. For example, if you are on Windows using the MinGW compiler, you can configure the -default compiler by putting something like this:: +default compiler by putting something like this: + +.. code-block:: ini [build] compiler = mingw32 @@ -518,18 +579,16 @@ activated or deactivated. As a result, if you are using EasyInstall to upgrade an existing package, or to install a package with the same name as an existing package, EasyInstall will warn you of the conflict. (This is an improvement over ``setup.py -install``, becuase the ``distutils`` just install new packages on top of old +install``, because the ``distutils`` just install new packages on top of old ones, possibly combining two unrelated packages or leaving behind modules that have been deleted in the newer version of the package.) -By default, EasyInstall will stop the installation if it detects a conflict +EasyInstall will stop the installation if it detects a conflict between an existing, "unmanaged" package, and a module or package in any of the distributions you're installing. It will display a list of all of the existing files and directories that would need to be deleted for the new -package to be able to function correctly. You can then either delete these -conflicting files and directories yourself and re-run EasyInstall, or you can -just use the ``--delete-conflicting`` or ``--ignore-conflicts-at-my-risk`` -options, as described under `Command-Line Options`_, below. +package to be able to function correctly. To proceed, you must manually +delete these conflicting files and directories and re-run EasyInstall. Of course, once you've replaced all of your existing "unmanaged" packages with versions managed by EasyInstall, you won't have any more conflicts to worry @@ -549,7 +608,7 @@ can be safely installed as a zipfile, and then acts on its analysis. (Previous versions would not install a package as a zipfile unless you used the ``--zip-ok`` option.) -The current analysis approach is fairly conservative; it currenly looks for: +The current analysis approach is fairly conservative; it currently looks for: * Any use of the ``__file__`` or ``__path__`` variables (which should be replaced with ``pkg_resources`` API calls) @@ -593,7 +652,9 @@ distutils configuration files, under the command heading ``easy_install``. EasyInstall will look first for a ``setup.cfg`` file in the current directory, then a ``~/.pydistutils.cfg`` or ``$HOME\\pydistutils.cfg`` (on Unix-like OSes and Windows, respectively), and finally a ``distutils.cfg`` file in the -``distutils`` package directory. Here's a simple example:: +``distutils`` package directory. Here's a simple example: + +.. code-block:: ini [easy_install] @@ -618,8 +679,11 @@ locations, build options, etc., EasyInstall will respect your existing settings until and unless you override them explicitly in an ``[easy_install]`` section. For more information, see also the current Python documentation on the `use and -location of distutils configuration files `_. +location of distutils configuration files `_. +Notice that ``easy_install`` will use the ``setup.cfg`` from the current +working directory only if it was triggered from ``setup.py`` through the +``install_requires`` option. The standalone command will not use that file. Command-Line Options -------------------- @@ -705,6 +769,10 @@ Command-Line Options versions of a package, but do not want to reset the version that will be run by scripts that are already installed. +``--user`` (New in 0.6.11) + Use the user-site-packages as specified in :pep:`370` + instead of the global site-packages. + ``--always-copy, -a`` (New in 0.5a4) Copy all needed distributions to the installation directory, even if they are already present in a directory on sys.path. In older versions of @@ -757,30 +825,16 @@ Command-Line Options package not being available locally, or due to the use of the ``--update`` or ``-U`` option. -``--delete-conflicting, -D`` (Removed in 0.6a11) - (As of 0.6a11, this option is no longer necessary; please do not use it!) - - If you are replacing a package that was previously installed *without* - using EasyInstall, the old version may end up on ``sys.path`` before the - version being installed with EasyInstall. EasyInstall will normally abort - the installation of a package if it detects such a conflict, and ask you to - manually remove the conflicting files or directories. If you specify this - option, however, EasyInstall will attempt to delete the files or - directories itself, and then proceed with the installation. +``--no-find-links`` Blocks the addition of any link. + This parameter is useful if you want to avoid adding links defined in a + project easy_install is installing (whether it's a requested project or a + dependency). When used, ``--find-links`` is ignored. -``--ignore-conflicts-at-my-risk`` (Removed in 0.6a11) - (As of 0.6a11, this option is no longer necessary; please do not use it!) - - Ignore conflicting packages and proceed with installation anyway, even - though it means the package probably won't work properly. If the - conflicting package is in a directory you can't write to, this may be your - only option, but you will need to take more invasive measures to get the - installed package to work, like manually adding it to ``PYTHONPATH`` or to - ``sys.path`` at runtime. + Added in Distribute 0.6.11 and Setuptools 0.7. ``--index-url=URL, -i URL`` (New in 0.4a1; default changed in 0.6c7) Specifies the base URL of the Python Package Index. The default is - http://pypi.python.org/simple if not specified. When a package is requested + https://pypi.org/simple/ if not specified. When a package is requested that is not locally available or linked from a ``--find-links`` download page, the package index will be searched for download pages for the needed package, and those download pages will be searched for links to download @@ -851,9 +905,6 @@ Command-Line Options judgment and force an installation directory to be treated as if it supported ``.pth`` files. - (If you want to *make* a non-``PYTHONPATH`` directory support ``.pth`` - files, please see the `Administrator Installation`_ section below.) - ``--no-deps, -N`` (New in 0.6a6) Don't install any dependencies. This is intended as a convenience for tools that wrap eggs in a platform-specific packaging system. (We don't @@ -866,7 +917,7 @@ Command-Line Options domain. The glob patterns must match the *entire* user/host/port section of the target URL(s). For example, ``*.python.org`` will NOT accept a URL like ``http://python.org/foo`` or ``http://www.python.org:8080/``. - Multiple patterns can be specified by separting them with commas. The + Multiple patterns can be specified by separating them with commas. The default pattern is ``*``, which matches anything. In general, this option is mainly useful for blocking EasyInstall's web @@ -896,7 +947,7 @@ Command-Line Options projects, not in-development ones, because such projects may not have a currently-valid version number. So, it usually only installs them when their ``setup.py`` directory is explicitly passed on the command line. - + However, if this option is used, then any in-development projects that were installed using the ``setup.py develop`` command, will be used to build eggs, effectively upgrading the "in-development" project to a snapshot @@ -916,211 +967,58 @@ Command-Line Options Custom Installation Locations ----------------------------- -EasyInstall manages what packages are active using Python ``.pth`` files, which -are normally only usable in Python's main ``site-packages`` directory. On some -platforms (such as Mac OS X), there are additional ``site-packages`` -directories that you can use besides the main one, but usually there is only -one directory on the system where you can install packages without extra steps. - -There are many reasons, however, why you might want to install packages -somewhere other than the ``site-packages`` directory. For example, you might -not have write access to that directory. You may be working with unstable -versions of packages that you don't want to install system-wide. And so on. - -The following sections describe various approaches to custom installation; feel -free to choose which one best suits your system and needs. - -`Administrator Installation`_ - This approach is for when you have write access to ``site-packages`` (or - another directory where ``.pth`` files are processed), but don't want to - install packages there. This can also be used by a system administrator - to enable each user having their own private directories that EasyInstall - will use to install packages. - -`Mac OS X "User" Installation`_ - This approach produces a result similar to an administrator installation - that gives each user their own private package directory, but on Mac OS X - the hard part has already been done for you. This is probably the best - approach for Mac OS X users. - -`Creating a "Virtual" Python`_ - This approach is for when you don't have "root" or access to write to the - ``site-packages`` directory, and would like to be able to set up one or - more "virtual python" executables for your projects. This approach - gives you the benefits of multiple Python installations, but without having - to actually install Python more than once and use up lots of disk space. - (Only the Python executable is copied; the libraries will be symlinked - from the systemwide Python.) - - If you don't already have any ``PYTHONPATH`` customization or - special distutils configuration, and you can't use either of the preceding - approaches, this is probably the best one for you. - -`"Traditional" PYTHONPATH-based Installation`_ - If you already have a custom ``PYTHONPATH``, and/or a custom distutils - configuration, and don't want to change any of your existing setup, you may - be interested in this approach. (If you're using a custom ``.pth`` file to - point to your custom installation location, however, you should use - `Administrator Installation`_ to enable ``.pth`` processing in the custom - location instead, as that is easier and more flexible than this approach.) - - -Administrator Installation -~~~~~~~~~~~~~~~~~~~~~~~~~~ - -If you have root access to your machine, you can easily configure it to allow -each user to have their own directory where Python packages can be installed -and managed by EasyInstall. - -First, create an ``altinstall.pth`` file in Python's ``site-packages`` -directory, containing the following line (substituting the correct Python -version):: - - import os, site; site.addsitedir(os.path.expanduser('~/lib/python2.3')) - -This will automatically add each user's ``~/lib/python2.X`` directory to -``sys.path`` (if it exists), *and* it will process any ``.pth`` files in that -directory -- which is what makes it usable with EasyInstall. - -The next step is to create or modify ``distutils.cfg`` in the ``distutils`` -directory of your Python library. The correct directory will be something like -``/usr/lib/python2.X/distutils`` on most Posix systems and something like -``C:\\Python2X\Lib\distutils`` on Windows machines. Add the following lines -to the file, substituting the correct Python version if necessary:: - - [install] - install_lib = ~/lib/python2.3 - - # This next line is optional but often quite useful; it directs EasyInstall - # and the distutils to install scripts in the user's "bin" directory. For - # Mac OS X framework Python builds, you should use /usr/local/bin instead, - # because neither ~/bin nor the default script installation location are on - # the system PATH. - # - install_scripts = ~/bin - -This will configure the distutils and EasyInstall to install packages to the -user's home directory by default. +By default, EasyInstall installs python packages into Python's main ``site-packages`` directory, +and manages them using a custom ``.pth`` file in that same directory. -Of course, you aren't limited to using a ``~/lib/python2.X`` directory with -this approach. You can substitute a specific systemwide directory if you like. -You can also edit ``~/.pydistutils.cfg`` (or ``~/pydistutils.cfg`` on Windows) -instead of changing the master ``distutils.cfg`` file. The true keys of this -approach are simply that: +Very often though, a user or developer wants ``easy_install`` to install and manage python packages +in an alternative location, usually for one of 3 reasons: -1. any custom installation directory must be added to ``sys.path`` using a - ``site.addsitedir()`` call from a working ``.pth`` file or - ``sitecustomize.py``. +1. They don't have access to write to the main Python site-packages directory. -2. The active distutils configuration file(s) or ``easy_install`` command line - should include the custom directory in the ``--site-dirs`` option, so that - EasyInstall knows that ``.pth`` files will work in that location. (This is - because Python does not keep track of what directories are or aren't enabled - for ``.pth`` processing, in any way that EasyInstall can find out.) +2. They want a user-specific stash of packages, that is not visible to other users. -As long as both of these things have been done, your custom installation -location is good to go. +3. They want to isolate a set of packages to a specific python application, usually to minimize + the possibility of version conflicts. +Historically, there have been many approaches to achieve custom installation. +The following section lists only the easiest and most relevant approaches [1]_. -Mac OS X "User" Installation -~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +`Use the "--user" option`_ -If you are on a Mac OS X machine, you should just use the -``~/Library/Python/2.x/site-packages`` directory as your custom installation -location, because it is already configured to process ``.pth`` files, and -EasyInstall already knows this. +`Use the "--user" option and customize "PYTHONUSERBASE"`_ -Before installing EasyInstall/setuptools, just create a ``~/.pydistutils.cfg`` -file with the following contents (or add this to the existing contents):: +`Use "virtualenv"`_ - [install] - install_lib = ~/Library/Python/$py_version_short/site-packages - install_scripts = ~/bin +.. [1] There are older ways to achieve custom installation using various ``easy_install`` and ``setup.py install`` options, combined with ``PYTHONPATH`` and/or ``PYTHONUSERBASE`` alterations, but all of these are effectively deprecated by the User scheme brought in by :pep:`370`. -This will tell the distutils and EasyInstall to always install packages in -your personal ``site-packages`` directory, and scripts to ``~/bin``. (Note: do -*not* replace ``$py_version_short`` with an actual Python version in the -configuration file! The distutils will substitute the correct value at -runtime, so that the above configuration file should work correctly no matter -what Python version you use, now or in the future.) -Once you have done this, you can follow the normal `installation instructions`_ -and use ``easy_install`` without any other special options or steps. +Use the "--user" option +~~~~~~~~~~~~~~~~~~~~~~~ +Python provides a User scheme for installation, which means that all +python distributions support an alternative install location that is specific to a user [3]_. +The Default location for each OS is explained in the python documentation +for the ``site.USER_BASE`` variable. This mode of installation can be turned on by +specifying the ``--user`` option to ``setup.py install`` or ``easy_install``. +This approach serves the need to have a user-specific stash of packages. -(Note, however, that ``~/bin`` is not in the default ``PATH``, so you may have -to refer to scripts by their full location. You may want to modify your shell -startup script (likely ``.bashrc`` or ``.profile``) or your -``~/.MacOSX/environment.plist`` to include ``~/bin`` in your ``PATH``. +.. [3] Prior to the User scheme, there was the Home scheme, which is still available, but requires more effort than the User scheme to get packages recognized. +Use the "--user" option and customize "PYTHONUSERBASE" +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +The User scheme install location can be customized by setting the ``PYTHONUSERBASE`` environment +variable, which updates the value of ``site.USER_BASE``. To isolate packages to a specific +application, simply set the OS environment of that application to a specific value of +``PYTHONUSERBASE``, that contains just those packages. -Creating a "Virtual" Python -~~~~~~~~~~~~~~~~~~~~~~~~~~~ +Use "virtualenv" +~~~~~~~~~~~~~~~~ +"virtualenv" is a 3rd-party python package that effectively "clones" a python installation, thereby +creating an isolated location to install packages. The evolution of "virtualenv" started before the existence +of the User installation scheme. "virtualenv" provides a version of ``easy_install`` that is +scoped to the cloned python install and is used in the normal way. "virtualenv" does offer various features +that the User installation scheme alone does not provide, e.g. the ability to hide the main python site-packages. -If you are on a Linux, BSD, Cygwin, or other similar Unix-like operating -system, but don't have root access, you can create your own "virtual" -Python installation, which uses its own library directories and some symlinks -to the site-wide Python. - -In the simplest case, your virtual Python installation will live under the -``~/lib/python2.x``, ``~/include/python2.x``, and ``~/bin`` directories. Just -download `virtual-python.py`_ and run it using the site-wide Python. If you -want to customize the location, you can use the ``--prefix`` option to specify -an installation base directory in place of ``~``. (Use ``--help`` to get the -complete list of options.) - -.. _virtual-python.py: http://peak.telecommunity.com/dist/virtual-python.py - -When you're done, you'll have a ``~/bin/python`` executable that's linked to -the local Python installation and inherits all its current libraries, but which -allows you to add as many new libraries as you want. Simply use this new -Python in place of your system-defined one, and you can modify it as you like -without breaking anything that relies on the system Python. You'll also still -need to follow the standard `installation instructions`_ to install setuptools -and EasyInstall, using your new ``~/bin/python`` executable in place of the -system Python. - -Note that if you were previously setting a ``PYTHONPATH`` and/or had other -special configuration options in your ``~/.pydistutils.cfg``, you may need to -remove these settings *before* running ``virtual-python.py``. This is because -your new Python executable will not need *any* custom configuration for the -distutils or EasyInstall; everything will go to the correct ``~/lib`` and -``~/bin`` directories automatically. - -You should, however, also make sure that the ``bin`` subdirectory of your -installation prefix (e.g. ``~/bin``) is on your ``PATH``, because that is where -EasyInstall and the distutils will install new Python scripts. - - -"Traditional" ``PYTHONPATH``-based Installation -~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - -This installation method is not as robust or as flexible as `creating a -"virtual" python`_ installation, as it uses various tricks to fool Python into -processing ``.pth`` files where it normally wouldn't. We suggest you at least -consider using one of the other approaches, as they will generally result in -a cleaner, more usable Python configuration. However, if for some reason you -can't or won't use one of the other approaches, here's how to do it. - -Assuming that you want to install packages in a directory called ``~/py-lib``, -and scripts in ``~/bin``, here's what you need to do: - -First, edit ``~/.pydistutils.cfg`` to include these settings, if you don't -already have them:: - - [install] - install_lib = ~/py-lib - install_scripts = ~/bin - -Be sure to do this *before* you try to run the ``distribute_setup.py`` -installation script. Then, follow the standard `installation instructions`_, -but make sure that ``~/py-lib`` is listed in your ``PYTHONPATH`` environment -variable. - -Your library installation directory *must* be in listed in ``PYTHONPATH``, -not only when you install packages with EasyInstall, but also when you use -any packages that are installed using EasyInstall. You will probably want to -edit your ``~/.profile`` or other configuration file(s) to ensure that it is -set, if you haven't already got this set up on your machine. +Please refer to the :pypi:`virtualenv` documentation for more details. Package Index "API" @@ -1177,547 +1075,3 @@ EasyInstall to be able to look up and download packages: 8. If a package index is accessed via a ``file://`` URL, then EasyInstall will automatically use ``index.html`` files, if present, when trying to read a directory with a trailing ``/`` on the URL. - - -Backward Compatibility -~~~~~~~~~~~~~~~~~~~~~~ - -Package indexes that wish to support setuptools versions prior to 0.6b4 should -also follow these rules: - -* Homepage and download links must be preceded with ``"Home Page"`` or - ``"Download URL"``, in addition to (or instead of) the ``rel=""`` - attributes on the actual links. These marker strings do not need to be - visible, or uncommented, however! For example, the following is a valid - homepage link that will work with any version of setuptools:: - -
  • - Home Page: - - http://sqlobject.org -
    • - - Even though the marker string is in an HTML comment, older versions of - EasyInstall will still "see" it and know that the link that follows is the - project's home page URL. - -* The pages described by paragraph 3(b) of the preceding section *must* - contain the string ``"Index of Packages"`` somewhere in their text. - This can be inside of an HTML comment, if desired, and it can be anywhere - in the page. (Note: this string MUST NOT appear on normal project pages, as - described in paragraphs 2 and 3(a)!) - -In addition, for compatibility with PyPI versions that do not use ``#md5=`` -fragment IDs, EasyInstall uses the following regular expression to match PyPI's -displayed MD5 info (broken onto two lines for readability):: - - ([^<]+)\n\s+\(md5\) - -History -======= - -0.6c9 - * Fixed ``win32.exe`` support for .pth files, so unnecessary directory nesting - is flattened out in the resulting egg. (There was a case-sensitivity - problem that affected some distributions, notably ``pywin32``.) - - * Prevent ``--help-commands`` and other junk from showing under Python 2.5 - when running ``easy_install --help``. - - * Fixed GUI scripts sometimes not executing on Windows - - * Fixed not picking up dependency links from recursive dependencies. - - * Only make ``.py``, ``.dll`` and ``.so`` files executable when unpacking eggs - - * Changes for Jython compatibility - - * Improved error message when a requirement is also a directory name, but the - specified directory is not a source package. - - * Fixed ``--allow-hosts`` option blocking ``file:`` URLs - - * Fixed HTTP SVN detection failing when the page title included a project - name (e.g. on SourceForge-hosted SVN) - - * Fix Jython script installation to handle ``#!`` lines better when - ``sys.executable`` is a script. - - * Removed use of deprecated ``md5`` module if ``hashlib`` is available - - * Keep site directories (e.g. ``site-packages``) from being included in - ``.pth`` files. - -0.6c7 - * ``ftp:`` download URLs now work correctly. - - * The default ``--index-url`` is now ``http://pypi.python.org/simple``, to use - the Python Package Index's new simpler (and faster!) REST API. - -0.6c6 - * EasyInstall no longer aborts the installation process if a URL it wants to - retrieve can't be downloaded, unless the URL is an actual package download. - Instead, it issues a warning and tries to keep going. - - * Fixed distutils-style scripts originally built on Windows having their line - endings doubled when installed on any platform. - - * Added ``--local-snapshots-ok`` flag, to allow building eggs from projects - installed using ``setup.py develop``. - - * Fixed not HTML-decoding URLs scraped from web pages - -0.6c5 - * Fixed ``.dll`` files on Cygwin not having executable permisions when an egg - is installed unzipped. - -0.6c4 - * Added support for HTTP "Basic" authentication using ``http://user:pass@host`` - URLs. If a password-protected page contains links to the same host (and - protocol), those links will inherit the credentials used to access the - original page. - - * Removed all special support for Sourceforge mirrors, as Sourceforge's - mirror system now works well for non-browser downloads. - - * Fixed not recognizing ``win32.exe`` installers that included a custom - bitmap. - - * Fixed not allowing ``os.open()`` of paths outside the sandbox, even if they - are opened read-only (e.g. reading ``/dev/urandom`` for random numbers, as - is done by ``os.urandom()`` on some platforms). - - * Fixed a problem with ``.pth`` testing on Windows when ``sys.executable`` - has a space in it (e.g., the user installed Python to a ``Program Files`` - directory). - -0.6c3 - * You can once again use "python -m easy_install" with Python 2.4 and above. - - * Python 2.5 compatibility fixes added. - -0.6c2 - * Windows script wrappers now support quoted arguments and arguments - containing spaces. (Patch contributed by Jim Fulton.) - - * The ``ez_setup.py`` script now actually works when you put a setuptools - ``.egg`` alongside it for bootstrapping an offline machine. - - * A writable installation directory on ``sys.path`` is no longer required to - download and extract a source distribution using ``--editable``. - - * Generated scripts now use ``-x`` on the ``#!`` line when ``sys.executable`` - contains non-ASCII characters, to prevent deprecation warnings about an - unspecified encoding when the script is run. - -0.6c1 - * EasyInstall now includes setuptools version information in the - ``User-Agent`` string sent to websites it visits. - -0.6b4 - * Fix creating Python wrappers for non-Python scripts - - * Fix ``ftp://`` directory listing URLs from causing a crash when used in the - "Home page" or "Download URL" slots on PyPI. - - * Fix ``sys.path_importer_cache`` not being updated when an existing zipfile - or directory is deleted/overwritten. - - * Fix not recognizing HTML 404 pages from package indexes. - - * Allow ``file://`` URLs to be used as a package index. URLs that refer to - directories will use an internally-generated directory listing if there is - no ``index.html`` file in the directory. - - * Allow external links in a package index to be specified using - ``rel="homepage"`` or ``rel="download"``, without needing the old - PyPI-specific visible markup. - - * Suppressed warning message about possibly-misspelled project name, if an egg - or link for that project name has already been seen. - -0.6b3 - * Fix local ``--find-links`` eggs not being copied except with - ``--always-copy``. - - * Fix sometimes not detecting local packages installed outside of "site" - directories. - - * Fix mysterious errors during initial ``setuptools`` install, caused by - ``ez_setup`` trying to run ``easy_install`` twice, due to a code fallthru - after deleting the egg from which it's running. - -0.6b2 - * Don't install or update a ``site.py`` patch when installing to a - ``PYTHONPATH`` directory with ``--multi-version``, unless an - ``easy-install.pth`` file is already in use there. - - * Construct ``.pth`` file paths in such a way that installing an egg whose - name begins with ``import`` doesn't cause a syntax error. - - * Fixed a bogus warning message that wasn't updated since the 0.5 versions. - -0.6b1 - * Better ambiguity management: accept ``#egg`` name/version even if processing - what appears to be a correctly-named distutils file, and ignore ``.egg`` - files with no ``-``, since valid Python ``.egg`` files always have a version - number (but Scheme eggs often don't). - - * Support ``file://`` links to directories in ``--find-links``, so that - easy_install can build packages from local source checkouts. - - * Added automatic retry for Sourceforge mirrors. The new download process is - to first just try dl.sourceforge.net, then randomly select mirror IPs and - remove ones that fail, until something works. The removed IPs stay removed - for the remainder of the run. - - * Ignore bdist_dumb distributions when looking at download URLs. - -0.6a11 - * Process ``dependency_links.txt`` if found in a distribution, by adding the - URLs to the list for scanning. - - * Use relative paths in ``.pth`` files when eggs are being installed to the - same directory as the ``.pth`` file. This maximizes portability of the - target directory when building applications that contain eggs. - - * Added ``easy_install-N.N`` script(s) for convenience when using multiple - Python versions. - - * Added automatic handling of installation conflicts. Eggs are now shifted to - the front of sys.path, in an order consistent with where they came from, - making EasyInstall seamlessly co-operate with system package managers. - - The ``--delete-conflicting`` and ``--ignore-conflicts-at-my-risk`` options - are now no longer necessary, and will generate warnings at the end of a - run if you use them. - - * Don't recursively traverse subdirectories given to ``--find-links``. - -0.6a10 - * Added exhaustive testing of the install directory, including a spawn test - for ``.pth`` file support, and directory writability/existence checks. This - should virtually eliminate the need to set or configure ``--site-dirs``. - - * Added ``--prefix`` option for more do-what-I-mean-ishness in the absence of - RTFM-ing. :) - - * Enhanced ``PYTHONPATH`` support so that you don't have to put any eggs on it - manually to make it work. ``--multi-version`` is no longer a silent - default; you must explicitly use it if installing to a non-PYTHONPATH, - non-"site" directory. - - * Expand ``$variables`` used in the ``--site-dirs``, ``--build-directory``, - ``--install-dir``, and ``--script-dir`` options, whether on the command line - or in configuration files. - - * Improved SourceForge mirror processing to work faster and be less affected - by transient HTML changes made by SourceForge. - - * PyPI searches now use the exact spelling of requirements specified on the - command line or in a project's ``install_requires``. Previously, a - normalized form of the name was used, which could lead to unnecessary - full-index searches when a project's name had an underscore (``_``) in it. - - * EasyInstall can now download bare ``.py`` files and wrap them in an egg, - as long as you include an ``#egg=name-version`` suffix on the URL, or if - the ``.py`` file is listed as the "Download URL" on the project's PyPI page. - This allows third parties to "package" trivial Python modules just by - linking to them (e.g. from within their own PyPI page or download links - page). - - * The ``--always-copy`` option now skips "system" and "development" eggs since - they can't be reliably copied. Note that this may cause EasyInstall to - choose an older version of a package than what you expected, or it may cause - downloading and installation of a fresh version of what's already installed. - - * The ``--find-links`` option previously scanned all supplied URLs and - directories as early as possible, but now only directories and direct - archive links are scanned immediately. URLs are not retrieved unless a - package search was already going to go online due to a package not being - available locally, or due to the use of the ``--update`` or ``-U`` option. - - * Fixed the annoying ``--help-commands`` wart. - -0.6a9 - * Fixed ``.pth`` file processing picking up nested eggs (i.e. ones inside - "baskets") when they weren't explicitly listed in the ``.pth`` file. - - * If more than one URL appears to describe the exact same distribution, prefer - the shortest one. This helps to avoid "table of contents" CGI URLs like the - ones on effbot.org. - - * Quote arguments to python.exe (including python's path) to avoid problems - when Python (or a script) is installed in a directory whose name contains - spaces on Windows. - - * Support full roundtrip translation of eggs to and from ``bdist_wininst`` - format. Running ``bdist_wininst`` on a setuptools-based package wraps the - egg in an .exe that will safely install it as an egg (i.e., with metadata - and entry-point wrapper scripts), and ``easy_install`` can turn the .exe - back into an ``.egg`` file or directory and install it as such. - -0.6a8 - * Update for changed SourceForge mirror format - - * Fixed not installing dependencies for some packages fetched via Subversion - - * Fixed dependency installation with ``--always-copy`` not using the same - dependency resolution procedure as other operations. - - * Fixed not fully removing temporary directories on Windows, if a Subversion - checkout left read-only files behind - - * Fixed some problems building extensions when Pyrex was installed, especially - with Python 2.4 and/or packages using SWIG. - -0.6a7 - * Fixed not being able to install Windows script wrappers using Python 2.3 - -0.6a6 - * Added support for "traditional" PYTHONPATH-based non-root installation, and - also the convenient ``virtual-python.py`` script, based on a contribution - by Ian Bicking. The setuptools egg now contains a hacked ``site`` module - that makes the PYTHONPATH-based approach work with .pth files, so that you - can get the full EasyInstall feature set on such installations. - - * Added ``--no-deps`` and ``--allow-hosts`` options. - - * Improved Windows ``.exe`` script wrappers so that the script can have the - same name as a module without confusing Python. - - * Changed dependency processing so that it's breadth-first, allowing a - depender's preferences to override those of a dependee, to prevent conflicts - when a lower version is acceptable to the dependee, but not the depender. - Also, ensure that currently installed/selected packages aren't given - precedence over ones desired by a package being installed, which could - cause conflict errors. - -0.6a3 - * Improved error message when trying to use old ways of running - ``easy_install``. Removed the ability to run via ``python -m`` or by - running ``easy_install.py``; ``easy_install`` is the command to run on all - supported platforms. - - * Improved wrapper script generation and runtime initialization so that a - VersionConflict doesn't occur if you later install a competing version of a - needed package as the default version of that package. - - * Fixed a problem parsing version numbers in ``#egg=`` links. - -0.6a2 - * EasyInstall can now install "console_scripts" defined by packages that use - ``setuptools`` and define appropriate entry points. On Windows, console - scripts get an ``.exe`` wrapper so you can just type their name. On other - platforms, the scripts are installed without a file extension. - - * Using ``python -m easy_install`` or running ``easy_install.py`` is now - DEPRECATED, since an ``easy_install`` wrapper is now available on all - platforms. - -0.6a1 - * EasyInstall now does MD5 validation of downloads from PyPI, or from any link - that has an "#md5=..." trailer with a 32-digit lowercase hex md5 digest. - - * EasyInstall now handles symlinks in target directories by removing the link, - rather than attempting to overwrite the link's destination. This makes it - easier to set up an alternate Python "home" directory (as described above in - the `Non-Root Installation`_ section). - - * Added support for handling MacOS platform information in ``.egg`` filenames, - based on a contribution by Kevin Dangoor. You may wish to delete and - reinstall any eggs whose filename includes "darwin" and "Power_Macintosh", - because the format for this platform information has changed so that minor - OS X upgrades (such as 10.4.1 to 10.4.2) do not cause eggs built with a - previous OS version to become obsolete. - - * easy_install's dependency processing algorithms have changed. When using - ``--always-copy``, it now ensures that dependencies are copied too. When - not using ``--always-copy``, it tries to use a single resolution loop, - rather than recursing. - - * Fixed installing extra ``.pyc`` or ``.pyo`` files for scripts with ``.py`` - extensions. - - * Added ``--site-dirs`` option to allow adding custom "site" directories. - Made ``easy-install.pth`` work in platform-specific alternate site - directories (e.g. ``~/Library/Python/2.x/site-packages`` on Mac OS X). - - * If you manually delete the current version of a package, the next run of - EasyInstall against the target directory will now remove the stray entry - from the ``easy-install.pth`` file. - - * EasyInstall now recognizes URLs with a ``#egg=project_name`` fragment ID - as pointing to the named project's source checkout. Such URLs have a lower - match precedence than any other kind of distribution, so they'll only be - used if they have a higher version number than any other available - distribution, or if you use the ``--editable`` option. The ``#egg`` - fragment can contain a version if it's formatted as ``#egg=proj-ver``, - where ``proj`` is the project name, and ``ver`` is the version number. You - *must* use the format for these values that the ``bdist_egg`` command uses; - i.e., all non-alphanumeric runs must be condensed to single underscore - characters. - - * Added the ``--editable`` option; see `Editing and Viewing Source Packages`_ - above for more info. Also, slightly changed the behavior of the - ``--build-directory`` option. - - * Fixed the setup script sandbox facility not recognizing certain paths as - valid on case-insensitive platforms. - -0.5a12 - * Fix ``python -m easy_install`` not working due to setuptools being installed - as a zipfile. Update safety scanner to check for modules that might be used - as ``python -m`` scripts. - - * Misc. fixes for win32.exe support, including changes to support Python 2.4's - changed ``bdist_wininst`` format. - -0.5a10 - * Put the ``easy_install`` module back in as a module, as it's needed for - ``python -m`` to run it! - - * Allow ``--find-links/-f`` to accept local directories or filenames as well - as URLs. - -0.5a9 - * EasyInstall now automatically detects when an "unmanaged" package or - module is going to be on ``sys.path`` ahead of a package you're installing, - thereby preventing the newer version from being imported. By default, it - will abort installation to alert you of the problem, but there are also - new options (``--delete-conflicting`` and ``--ignore-conflicts-at-my-risk``) - available to change the default behavior. (Note: this new feature doesn't - take effect for egg files that were built with older ``setuptools`` - versions, because they lack the new metadata file required to implement it.) - - * The ``easy_install`` distutils command now uses ``DistutilsError`` as its - base error type for errors that should just issue a message to stderr and - exit the program without a traceback. - - * EasyInstall can now be given a path to a directory containing a setup - script, and it will attempt to build and install the package there. - - * EasyInstall now performs a safety analysis on module contents to determine - whether a package is likely to run in zipped form, and displays - information about what modules may be doing introspection that would break - when running as a zipfile. - - * Added the ``--always-unzip/-Z`` option, to force unzipping of packages that - would ordinarily be considered safe to unzip, and changed the meaning of - ``--zip-ok/-z`` to "always leave everything zipped". - -0.5a8 - * There is now a separate documentation page for `setuptools`_; revision - history that's not specific to EasyInstall has been moved to that page. - - .. _setuptools: http://peak.telecommunity.com/DevCenter/setuptools - -0.5a5 - * Made ``easy_install`` a standard ``setuptools`` command, moving it from - the ``easy_install`` module to ``setuptools.command.easy_install``. Note - that if you were importing or extending it, you must now change your imports - accordingly. ``easy_install.py`` is still installed as a script, but not as - a module. - -0.5a4 - * Added ``--always-copy/-a`` option to always copy needed packages to the - installation directory, even if they're already present elsewhere on - sys.path. (In previous versions, this was the default behavior, but now - you must request it.) - - * Added ``--upgrade/-U`` option to force checking PyPI for latest available - version(s) of all packages requested by name and version, even if a matching - version is available locally. - - * Added automatic installation of dependencies declared by a distribution - being installed. These dependencies must be listed in the distribution's - ``EGG-INFO`` directory, so the distribution has to have declared its - dependencies by using setuptools. If a package has requirements it didn't - declare, you'll still have to deal with them yourself. (E.g., by asking - EasyInstall to find and install them.) - - * Added the ``--record`` option to ``easy_install`` for the benefit of tools - that run ``setup.py install --record=filename`` on behalf of another - packaging system.) - -0.5a3 - * Fixed not setting script permissions to allow execution. - - * Improved sandboxing so that setup scripts that want a temporary directory - (e.g. pychecker) can still run in the sandbox. - -0.5a2 - * Fix stupid stupid refactoring-at-the-last-minute typos. :( - -0.5a1 - * Added support for converting ``.win32.exe`` installers to eggs on the fly. - EasyInstall will now recognize such files by name and install them. - - * Fixed a problem with picking the "best" version to install (versions were - being sorted as strings, rather than as parsed values) - -0.4a4 - * Added support for the distutils "verbose/quiet" and "dry-run" options, as - well as the "optimize" flag. - - * Support downloading packages that were uploaded to PyPI (by scanning all - links on package pages, not just the homepage/download links). - -0.4a3 - * Add progress messages to the search/download process so that you can tell - what URLs it's reading to find download links. (Hopefully, this will help - people report out-of-date and broken links to package authors, and to tell - when they've asked for a package that doesn't exist.) - -0.4a2 - * Added support for installing scripts - - * Added support for setting options via distutils configuration files, and - using distutils' default options as a basis for EasyInstall's defaults. - - * Renamed ``--scan-url/-s`` to ``--find-links/-f`` to free up ``-s`` for the - script installation directory option. - - * Use ``urllib2`` instead of ``urllib``, to allow use of ``https:`` URLs if - Python includes SSL support. - -0.4a1 - * Added ``--scan-url`` and ``--index-url`` options, to scan download pages - and search PyPI for needed packages. - -0.3a4 - * Restrict ``--build-directory=DIR/-b DIR`` option to only be used with single - URL installs, to avoid running the wrong setup.py. - -0.3a3 - * Added ``--build-directory=DIR/-b DIR`` option. - - * Added "installation report" that explains how to use 'require()' when doing - a multiversion install or alternate installation directory. - - * Added SourceForge mirror auto-select (Contributed by Ian Bicking) - - * Added "sandboxing" that stops a setup script from running if it attempts to - write to the filesystem outside of the build area - - * Added more workarounds for packages with quirky ``install_data`` hacks - -0.3a2 - * Added subversion download support for ``svn:`` and ``svn+`` URLs, as well as - automatic recognition of HTTP subversion URLs (Contributed by Ian Bicking) - - * Misc. bug fixes - -0.3a1 - * Initial release. - - -Future Plans -============ - -* Additional utilities to list/remove/verify packages -* Signature checking? SSL? Ability to suppress PyPI search? -* Display byte progress meter when downloading distributions and long pages? -* Redirect stdout/stderr to log during run_setup? - diff --git a/docs/deprecated/functionalities.rst b/docs/deprecated/functionalities.rst new file mode 100644 index 0000000000..7213c5d676 --- /dev/null +++ b/docs/deprecated/functionalities.rst @@ -0,0 +1,33 @@ +"Eggsecutable" Scripts +---------------------- + +.. deprecated:: 45.3.0 + +Occasionally, there are situations where it's desirable to make an ``.egg`` +file directly executable. You can do this by including an entry point such +as the following:: + + setup( + # other arguments here... + entry_points={ + "setuptools.installation": [ + "eggsecutable = my_package.some_module:main_func", + ] + } + ) + +Any eggs built from the above setup script will include a short executable +prelude that imports and calls ``main_func()`` from ``my_package.some_module``. +The prelude can be run on Unix-like platforms (including Mac and Linux) by +invoking the egg with ``/bin/sh``, or by enabling execute permissions on the +``.egg`` file. For the executable prelude to run, the appropriate version of +Python must be available via the ``PATH`` environment variable, under its +"long" name. That is, if the egg is built for Python 2.3, there must be a +``python2.3`` executable present in a directory on ``PATH``. + +IMPORTANT NOTE: Eggs with an "eggsecutable" header cannot be renamed, or +invoked via symlinks. They *must* be invoked using their original filename, in +order to ensure that, once running, ``pkg_resources`` will know what project +and version is in use. The header script will check this and exit with an +error if the ``.egg`` file has been renamed or is invoked via a symlink that +changes its base name. diff --git a/docs/deprecated/index.rst b/docs/deprecated/index.rst new file mode 100644 index 0000000000..0ea66cf644 --- /dev/null +++ b/docs/deprecated/index.rst @@ -0,0 +1,25 @@ +====================================================== +Guides on backward compatibility & deprecated practice +====================================================== + +``Setuptools`` has undergone tremendous changes since its first debut. As its +development continues to roll forward, many of the practice and mechanisms it +had established are now considered deprecated. But they still remain relevant +as a plethora of libraries continue to depend on them. Many people also find +it necessary to equip themselves with the knowledge to better support backward +compatibility. This guide aims to provide the essential information for such +objectives. + +.. toctree:: + :maxdepth: 1 + + changed_keywords + dependency_links + python_eggs + easy_install + zip_safe + resource_extraction + distutils/index + distutils-legacy + functionalities + commands diff --git a/docs/deprecated/python_eggs.rst b/docs/deprecated/python_eggs.rst new file mode 100644 index 0000000000..4bb099e01b --- /dev/null +++ b/docs/deprecated/python_eggs.rst @@ -0,0 +1,683 @@ +===================================== +The Internal Structure of Python Eggs +===================================== + +STOP! This is not the first document you should read! + + + +---------------------- +Eggs and their Formats +---------------------- + +A "Python egg" is a logical structure embodying the release of a +specific version of a Python project, comprising its code, resources, +and metadata. There are multiple formats that can be used to physically +encode a Python egg, and others can be developed. However, a key +principle of Python eggs is that they should be discoverable and +importable. That is, it should be possible for a Python application to +easily and efficiently find out what eggs are present on a system, and +to ensure that the desired eggs' contents are importable. + +There are two basic formats currently implemented for Python eggs: + +1. ``.egg`` format: a directory or zipfile *containing* the project's + code and resources, along with an ``EGG-INFO`` subdirectory that + contains the project's metadata + +2. ``.egg-info`` format: a file or directory placed *adjacent* to the + project's code and resources, that directly contains the project's + metadata. + +Both formats can include arbitrary Python code and resources, including +static data files, package and non-package directories, Python +modules, C extension modules, and so on. But each format is optimized +for different purposes. + +The ``.egg`` format is well-suited to distribution and the easy +uninstallation or upgrades of code, since the project is essentially +self-contained within a single directory or file, unmingled with any +other projects' code or resources. It also makes it possible to have +multiple versions of a project simultaneously installed, such that +individual programs can select the versions they wish to use. + +The ``.egg-info`` format, on the other hand, was created to support +backward-compatibility, performance, and ease of installation for system +packaging tools that expect to install all projects' code and resources +to a single directory (e.g. ``site-packages``). Placing the metadata +in that same directory simplifies the installation process, since it +isn't necessary to create ``.pth`` files or otherwise modify +``sys.path`` to include each installed egg. + +Its disadvantage, however, is that it provides no support for clean +uninstallation or upgrades, and of course only a single version of a +project can be installed to a given directory. Thus, support from a +package management tool is required. (This is why setuptools' "install" +command refers to this type of egg installation as "single-version, +externally managed".) Also, they lack sufficient data to allow them to +be copied from their installation source. easy_install can "ship" an +application by copying ``.egg`` files or directories to a target +location, but it cannot do this for ``.egg-info`` installs, because +there is no way to tell what code and resources belong to a particular +egg -- there may be several eggs "scrambled" together in a single +installation location, and the ``.egg-info`` format does not currently +include a way to list the files that were installed. (This may change +in a future version.) + + +Code and Resources +================== + +The layout of the code and resources is dictated by Python's normal +import layout, relative to the egg's "base location". + +For the ``.egg`` format, the base location is the ``.egg`` itself. That +is, adding the ``.egg`` filename or directory name to ``sys.path`` +makes its contents importable. + +For the ``.egg-info`` format, however, the base location is the +directory that *contains* the ``.egg-info``, and thus it is the +directory that must be added to ``sys.path`` to make the egg importable. +(Note that this means that the "normal" installation of a package to a +``sys.path`` directory is sufficient to make it an "egg" if it has an +``.egg-info`` file or directory installed alongside of it.) + + +Project Metadata +================= + +If eggs contained only code and resources, there would of course be +no difference between them and any other directory or zip file on +``sys.path``. Thus, metadata must also be included, using a metadata +file or directory. + +For the ``.egg`` format, the metadata is placed in an ``EGG-INFO`` +subdirectory, directly within the ``.egg`` file or directory. For the +``.egg-info`` format, metadata is stored directly within the +``.egg-info`` directory itself. + +The minimum project metadata that all eggs must have is a standard +Python ``PKG-INFO`` file, named ``PKG-INFO`` and placed within the +metadata directory appropriate to the format. Because it's possible for +this to be the only metadata file included, ``.egg-info`` format eggs +are not required to be a directory; they can just be a ``.egg-info`` +file that directly contains the ``PKG-INFO`` metadata. This eliminates +the need to create a directory just to store one file. This option is +*not* available for ``.egg`` formats, since setuptools always includes +other metadata. (In fact, setuptools itself never generates +``.egg-info`` files, either; the support for using files was added so +that the requirement could easily be satisfied by other tools, such +as distutils). + +In addition to the ``PKG-INFO`` file, an egg's metadata directory may +also include files and directories representing various forms of +optional standard metadata (see the section on `Standard Metadata`_, +below) or user-defined metadata required by the project. For example, +some projects may define a metadata format to describe their application +plugins, and metadata in this format would then be included by plugin +creators in their projects' metadata directories. + + +Filename-Embedded Metadata +========================== + +To allow introspection of installed projects and runtime resolution of +inter-project dependencies, a certain amount of information is embedded +in egg filenames. At a minimum, this includes the project name, and +ideally will also include the project version number. Optionally, it +can also include the target Python version and required runtime +platform if platform-specific C code is included. The syntax of an +egg filename is as follows:: + + name ["-" version ["-py" pyver ["-" required_platform]]] "." ext + +The "name" and "version" should be escaped using ``pkg_resources`` functions +``safe_name()`` and ``safe_version()`` respectively then using +``to_filename()``. Note that the escaping is irreversible and the original +name can only be retrieved from the distribution metadata. For a detailed +description of these transformations, please see the "Parsing Utilities" +section of the ``pkg_resources`` manual. + +The "pyver" string is the Python major version, as found in the first +3 characters of ``sys.version``. "required_platform" is essentially +a distutils ``get_platform()`` string, but with enhancements to properly +distinguish Mac OS versions. (See the ``get_build_platform()`` +documentation in the "Platform Utilities" section of the +``pkg_resources`` manual for more details.) + +Finally, the "ext" is either ``.egg`` or ``.egg-info``, as appropriate +for the egg's format. + +Normally, an egg's filename should include at least the project name and +version, as this allows the runtime system to find desired project +versions without having to read the egg's PKG-INFO to determine its +version number. + +Setuptools, however, only includes the version number in the filename +when an ``.egg`` file is built using the ``bdist_egg`` command, or when +an ``.egg-info`` directory is being installed by the +``install_egg_info`` command. When generating metadata for use with the +original source tree, it only includes the project name, so that the +directory will not have to be renamed each time the project's version +changes. + +This is especially important when version numbers change frequently, and +the source metadata directory is kept under version control with the +rest of the project. (As would be the case when the project's source +includes project-defined metadata that is not generated from by +setuptools from data in the setup script.) + + +Egg Links +========= + +In addition to the ``.egg`` and ``.egg-info`` formats, there is a third +egg-related extension that you may encounter on occasion: ``.egg-link`` +files. + +These files are not eggs, strictly speaking. They simply provide a way +to reference an egg that is not physically installed in the desired +location. They exist primarily as a cross-platform alternative to +symbolic links, to support "installing" code that is being developed in +a different location than the desired installation location. For +example, if a user is developing an application plugin in their home +directory, but the plugin needs to be "installed" in an application +plugin directory, running "setup.py develop -md /path/to/app/plugins" +will install an ``.egg-link`` file in ``/path/to/app/plugins``, that +tells the egg runtime system where to find the actual egg (the user's +project source directory and its ``.egg-info`` subdirectory). + +``.egg-link`` files are named following the format for ``.egg`` and +``.egg-info`` names, but only the project name is included; no version, +Python version, or platform information is included. When the runtime +searches for available eggs, ``.egg-link`` files are opened and the +actual egg file/directory name is read from them. + +Note: Due to `pypa/setuptools#4167 +`_, the name in the egg-link +filename does not match the filename components used in similar files, but +instead presents with dash separators instead of underscore separators. For +compatibility with pip prior to version 24.0, these dash separators are +retained. In a future release, pip 24 or later will be required and the +underscore separators will be used. + +Each ``.egg-link`` file should contain a single file or directory name, +with no newlines. This filename should be the base location of one or +more eggs. That is, the name must either end in ``.egg``, or else it +should be the parent directory of one or more ``.egg-info`` format eggs. + +As of setuptools 0.6c6, the path may be specified as a platform-independent +(i.e. ``/``-separated) relative path from the directory containing the +``.egg-link`` file, and a second line may appear in the file, specifying a +platform-independent relative path from the egg's base directory to its +setup script directory. This allows installation tools such as EasyInstall +to find the project's setup directory and build eggs or perform other setup +commands on it. + + +----------------- +Standard Metadata +----------------- + +In addition to the minimum required ``PKG-INFO`` metadata, projects can +include a variety of standard metadata files or directories, as +described below. Except as otherwise noted, these files and directories +are automatically generated by setuptools, based on information supplied +in the setup script or through analysis of the project's code and +resources. + +Most of these files and directories are generated via "egg-info +writers" during execution of the setuptools ``egg_info`` command, and +are listed in the ``egg_info.writers`` entry point group defined by +setuptools' own ``setup.py`` file. + +Project authors can register their own metadata writers as entry points +in this group (as described in the setuptools manual under "Adding new +EGG-INFO Files") to cause setuptools to generate project-specific +metadata files or directories during execution of the ``egg_info`` +command. It is up to project authors to document these new metadata +formats, if they create any. + + +``.txt`` File Formats +===================== + +Files described in this section that have ``.txt`` extensions have a +simple lexical format consisting of a sequence of text lines, each line +terminated by a linefeed character (regardless of platform). Leading +and trailing whitespace on each line is ignored, as are blank lines and +lines whose first nonblank character is a ``#`` (comment symbol). (This +is the parsing format defined by the ``yield_lines()`` function of +the ``pkg_resources`` module.) + +All ``.txt`` files defined by this section follow this format, but some +are also "sectioned" files, meaning that their contents are divided into +sections, using square-bracketed section headers akin to Windows +``.ini`` format. Note that this does *not* imply that the lines within +the sections follow an ``.ini`` format, however. Please see an +individual metadata file's documentation for a description of what the +lines and section names mean in that particular file. + +Sectioned files can be parsed using the ``split_sections()`` function; +see the "Parsing Utilities" section of the ``pkg_resources`` manual for +for details. + + +Dependency Metadata +=================== + + +``requires.txt`` +---------------- + +This is a "sectioned" text file. Each section is a sequence of +"requirements", as parsed by the ``parse_requirements()`` function; +please see the ``pkg_resources`` manual for the complete requirement +parsing syntax. + +The first, unnamed section (i.e., before the first section header) in +this file is the project's core requirements, which must be installed +for the project to function. (Specified using the ``install_requires`` +keyword to ``setup()``). + +The remaining (named) sections describe the project's "extra" +requirements, as specified using the ``extras_require`` keyword to +``setup()``. The section name is the name of the optional feature, and +the section body lists that feature's dependencies. + +Note that it is not normally necessary to inspect this file directly; +``pkg_resources.Distribution`` objects have a ``requires()`` method +that can be used to obtain ``Requirement`` objects describing the +project's core and optional dependencies. + + +``setup_requires.txt`` +---------------------- + +Much like ``requires.txt`` except represents the requirements +specified by the ``setup_requires`` parameter to the Distribution. + + +``dependency_links.txt`` +------------------------ + +A list of dependency URLs, one per line, as specified using the +``dependency_links`` keyword to ``setup()``. These may be direct +download URLs, or the URLs of web pages containing direct download +links. Please see the setuptools manual for more information on +specifying this option. + + +``depends.txt`` -- Obsolete, do not create! +------------------------------------------- + +This file follows an identical format to ``requires.txt``, but is +obsolete and should not be used. The earliest versions of setuptools +required users to manually create and maintain this file, so the runtime +still supports reading it, if it exists. The new filename was created +so that it could be automatically generated from ``setup()`` information +without overwriting an existing hand-created ``depends.txt``, if one +was already present in the project's source ``.egg-info`` directory. + + +``namespace_packages.txt`` -- Namespace Package Metadata +======================================================== + +A list of namespace package names, one per line, as supplied to the +``namespace_packages`` keyword to ``setup()``. Please see the manuals +for setuptools and ``pkg_resources`` for more information about +namespace packages. + + +``entry_points.txt`` -- "Entry Point"/Plugin Metadata +===================================================== + +This is a "sectioned" text file, whose contents encode the +``entry_points`` keyword supplied to ``setup()``. All sections are +named, as the section names specify the entry point groups in which the +corresponding section's entry points are registered. + +Each section is a sequence of "entry point" lines, each parseable using +the ``EntryPoint.parse`` classmethod; please see the ``pkg_resources`` +manual for the complete entry point parsing syntax. + +Note that it is not necessary to parse this file directly; the +``pkg_resources`` module provides a variety of APIs to locate and load +entry points automatically. Please see the setuptools and +``pkg_resources`` manuals for details on the nature and uses of entry +points. + + +The ``scripts`` Subdirectory +============================ + +This directory is currently only created for ``.egg`` files built by +the setuptools ``bdist_egg`` command. It will contain copies of all +of the project's "traditional" scripts (i.e., those specified using the +``scripts`` keyword to ``setup()``). This is so that they can be +reconstituted when an ``.egg`` file is installed. + +The scripts are placed here using the distutils' standard +``install_scripts`` command, so any ``#!`` lines reflect the Python +installation where the egg was built. But instead of copying the +scripts to the local script installation directory, EasyInstall writes +short wrapper scripts that invoke the original scripts from inside the +egg, after ensuring that sys.path includes the egg and any eggs it +depends on. For more about `script wrappers`_, see the section below on +`Installation and Path Management Issues`_. + + +Zip Support Metadata +==================== + + +``native_libs.txt`` +------------------- + +A list of C extensions and other dynamic link libraries contained in +the egg, one per line. Paths are ``/``-separated and relative to the +egg's base location. + +This file is generated as part of ``bdist_egg`` processing, and as such +only appears in ``.egg`` files (and ``.egg`` directories created by +unpacking them). It is used to ensure that all libraries are extracted +from a zipped egg at the same time, in case there is any direct linkage +between them. Please see the `Zip File Issues`_ section below for more +information on library and resource extraction from ``.egg`` files. + + +``eager_resources.txt`` +----------------------- + +A list of resource files and/or directories, one per line, as specified +via the ``eager_resources`` keyword to ``setup()``. Paths are +``/``-separated and relative to the egg's base location. + +Resource files or directories listed here will be extracted +simultaneously, if any of the named resources are extracted, or if any +native libraries listed in ``native_libs.txt`` are extracted. Please +see the setuptools manual for details on what this feature is used for +and how it works, as well as the `Zip File Issues`_ section below. + + +``zip-safe`` and ``not-zip-safe`` +--------------------------------- + +These are zero-length files, and either one or the other should exist. +If ``zip-safe`` exists, it means that the project will work properly +when installed as an ``.egg`` zipfile, and conversely the existence of +``not-zip-safe`` means the project should not be installed as an +``.egg`` file. The ``zip_safe`` option to setuptools' ``setup()`` +determines which file will be written. If the option isn't provided, +setuptools attempts to make its own assessment of whether the package +can work, based on code and content analysis. + +If neither file is present at installation time, EasyInstall defaults +to assuming that the project should be unzipped. (Command-line options +to EasyInstall, however, take precedence even over an existing +``zip-safe`` or ``not-zip-safe`` file.) + +Note that these flag files appear only in ``.egg`` files generated by +``bdist_egg``, and in ``.egg`` directories created by unpacking such an +``.egg`` file. + + + +``top_level.txt`` -- Conflict Management Metadata +================================================= + +This file is a list of the top-level module or package names provided +by the project, one Python identifier per line. + +Subpackages are not included; a project containing both a ``foo.bar`` +and a ``foo.baz`` would include only one line, ``foo``, in its +``top_level.txt``. + +This data is used by ``pkg_resources`` at runtime to issue a warning if +an egg is added to ``sys.path`` when its contained packages may have +already been imported. + +(It was also once used to detect conflicts with non-egg packages at +installation time, but in more recent versions, setuptools installs eggs +in such a way that they always override non-egg packages, thus +preventing a problem from arising.) + + +``SOURCES.txt`` -- Source Files Manifest +======================================== + +This file is roughly equivalent to the distutils' ``MANIFEST`` file. +The differences are as follows: + +* The filenames always use ``/`` as a path separator, which must be + converted back to a platform-specific path whenever they are read. + +* The file is automatically generated by setuptools whenever the + ``egg_info`` or ``sdist`` commands are run, and it is *not* + user-editable. + +Although this metadata is included with distributed eggs, it is not +actually used at runtime for any purpose. Its function is to ensure +that setuptools-built *source* distributions can correctly discover +what files are part of the project's source, even if the list had been +generated using revision control metadata on the original author's +system. + +In other words, ``SOURCES.txt`` has little or no runtime value for being +included in distributed eggs, and it is possible that future versions of +the ``bdist_egg`` and ``install_egg_info`` commands will strip it before +installation or distribution. Therefore, do not rely on its being +available outside of an original source directory or source +distribution. + + +------------------------------ +Other Technical Considerations +------------------------------ + + +Zip File Issues +=============== + +Although zip files resemble directories, they are not fully +substitutable for them. Most platforms do not support loading dynamic +link libraries contained in zipfiles, so it is not possible to directly +import C extensions from ``.egg`` zipfiles. Similarly, there are many +existing libraries -- whether in Python or C -- that require actual +operating system filenames, and do not work with arbitrary "file-like" +objects or in-memory strings, and thus cannot operate directly on the +contents of zip files. + +To address these issues, the ``pkg_resources`` module provides a +"resource API" to support obtaining either the contents of a resource, +or a true operating system filename for the resource. If the egg +containing the resource is a directory, the resource's real filename +is simply returned. However, if the egg is a zipfile, then the +resource is first extracted to a cache directory, and the filename +within the cache is returned. + +The cache directory is determined by the ``pkg_resources`` API; please +see the ``set_cache_path()`` and ``get_default_cache()`` documentation +for details. + + +The Extraction Process +---------------------- + +Resources are extracted to a cache subdirectory whose name is based +on the enclosing ``.egg`` filename and the path to the resource. If +there is already a file of the correct name, size, and timestamp, its +filename is returned to the requester. Otherwise, the desired file is +extracted first to a temporary name generated using +``mkstemp(".$extract",target_dir)``, and then its timestamp is set to +match the one in the zip file, before renaming it to its final name. +(Some collision detection and resolution code is used to handle the +fact that Windows doesn't overwrite files when renaming.) + +If a resource directory is requested, all of its contents are +recursively extracted in this fashion, to ensure that the directory +name can be used as if it were valid all along. + +If the resource requested for extraction is listed in the +``native_libs.txt`` or ``eager_resources.txt`` metadata files, then +*all* resources listed in *either* file will be extracted before the +requested resource's filename is returned, thus ensuring that all +C extensions and data used by them will be simultaneously available. + + +Extension Import Wrappers +------------------------- + +Since Python's built-in zip import feature does not support loading +C extension modules from zipfiles, the setuptools ``bdist_egg`` command +generates special import wrappers to make it work. + +The wrappers are ``.py`` files (along with corresponding ``.pyc`` +and/or ``.pyo`` files) that have the same module name as the +corresponding C extension. These wrappers are located in the same +package directory (or top-level directory) within the zipfile, so that +say, ``foomodule.so`` will get a corresponding ``foo.py``, while +``bar/baz.pyd`` will get a corresponding ``bar/baz.py``. + +These wrapper files contain a short stanza of Python code that asks +``pkg_resources`` for the filename of the corresponding C extension, +then reloads the module using the obtained filename. This will cause +``pkg_resources`` to first ensure that all of the egg's C extensions +(and any accompanying "eager resources") are extracted to the cache +before attempting to link to the C library. + +Note, by the way, that ``.egg`` directories will also contain these +wrapper files. However, Python's default import priority is such that +C extensions take precedence over same-named Python modules, so the +import wrappers are ignored unless the egg is a zipfile. + + +Installation and Path Management Issues +======================================= + +Python's initial setup of ``sys.path`` is very dependent on the Python +version and installation platform, as well as how Python was started +(i.e., script vs. ``-c`` vs. ``-m`` vs. interactive interpreter). +In fact, Python also provides only two relatively robust ways to affect +``sys.path`` outside of direct manipulation in code: the ``PYTHONPATH`` +environment variable, and ``.pth`` files. + +However, with no cross-platform way to safely and persistently change +environment variables, this leaves ``.pth`` files as EasyInstall's only +real option for persistent configuration of ``sys.path``. + +But ``.pth`` files are rather strictly limited in what they are allowed +to do normally. They add directories only to the *end* of ``sys.path``, +after any locally-installed ``site-packages`` directory, and they are +only processed *in* the ``site-packages`` directory to start with. + +This is a double whammy for users who lack write access to that +directory, because they can't create a ``.pth`` file that Python will +read, and even if a sympathetic system administrator adds one for them +that calls ``site.addsitedir()`` to allow some other directory to +contain ``.pth`` files, they won't be able to install newer versions of +anything that's installed in the systemwide ``site-packages``, because +their paths will still be added *after* ``site-packages``. + +So EasyInstall applies two workarounds to solve these problems. + +The first is that EasyInstall leverages ``.pth`` files' "import" feature +to manipulate ``sys.path`` and ensure that anything EasyInstall adds +to a ``.pth`` file will always appear before both the standard library +and the local ``site-packages`` directories. Thus, it is always +possible for a user who can write a Python-read ``.pth`` file to ensure +that their packages come first in their own environment. + +Second, when installing to a ``PYTHONPATH`` directory (as opposed to +a "site" directory like ``site-packages``) EasyInstall will also install +a special version of the ``site`` module. Because it's in a +``PYTHONPATH`` directory, this module will get control before the +standard library version of ``site`` does. It will record the state of +``sys.path`` before invoking the "real" ``site`` module, and then +afterwards it processes any ``.pth`` files found in ``PYTHONPATH`` +directories, including all the fixups needed to ensure that eggs always +appear before the standard library in sys.path, but are in a relative +order to one another that is defined by their ``PYTHONPATH`` and +``.pth``-prescribed sequence. + +The net result of these changes is that ``sys.path`` order will be +as follows at runtime: + +1. The ``sys.argv[0]`` directory, or an empty string if no script + is being executed. + +2. All eggs installed by EasyInstall in any ``.pth`` file in each + ``PYTHONPATH`` directory, in order first by ``PYTHONPATH`` order, + then normal ``.pth`` processing order (which is to say alphabetical + by ``.pth`` filename, then by the order of listing within each + ``.pth`` file). + +3. All eggs installed by EasyInstall in any ``.pth`` file in each "site" + directory (such as ``site-packages``), following the same ordering + rules as for the ones on ``PYTHONPATH``. + +4. The ``PYTHONPATH`` directories themselves, in their original order + +5. Any paths from ``.pth`` files found on ``PYTHONPATH`` that were *not* + eggs installed by EasyInstall, again following the same relative + ordering rules. + +6. The standard library and "site" directories, along with the contents + of any ``.pth`` files found in the "site" directories. + +Notice that sections 1, 4, and 6 comprise the "normal" Python setup for +``sys.path``. Sections 2 and 3 are inserted to support eggs, and +section 5 emulates what the "normal" semantics of ``.pth`` files on +``PYTHONPATH`` would be if Python natively supported them. + +For further discussion of the tradeoffs that went into this design, as +well as notes on the actual magic inserted into ``.pth`` files to make +them do these things, please see also the following messages to the +distutils-SIG mailing list: + +* http://mail.python.org/pipermail/distutils-sig/2006-February/006026.html +* http://mail.python.org/pipermail/distutils-sig/2006-March/006123.html + + +Script Wrappers +--------------- + +EasyInstall never directly installs a project's original scripts to +a script installation directory. Instead, it writes short wrapper +scripts that first ensure that the project's dependencies are active +on sys.path, before invoking the original script. These wrappers +have a #! line that points to the version of Python that was used to +install them, and their second line is always a comment that indicates +the type of script wrapper, the project version required for the script +to run, and information identifying the script to be invoked. + +The format of this marker line is:: + + "# EASY-INSTALL-" script_type ": " tuple_of_strings "\n" + +The ``script_type`` is one of ``SCRIPT``, ``DEV-SCRIPT``, or +``ENTRY-SCRIPT``. The ``tuple_of_strings`` is a comma-separated +sequence of Python string constants. For ``SCRIPT`` and ``DEV-SCRIPT`` +wrappers, there are two strings: the project version requirement, and +the script name (as a filename within the ``scripts`` metadata +directory). For ``ENTRY-SCRIPT`` wrappers, there are three: +the project version requirement, the entry point group name, and the +entry point name. (See the "Automatic Script Creation" section in the +setuptools manual for more information about entry point scripts.) + +In each case, the project version requirement string will be a string +parseable with the ``pkg_resources`` modules' ``Requirement.parse()`` +classmethod. The only difference between a ``SCRIPT`` wrapper and a +``DEV-SCRIPT`` is that a ``DEV-SCRIPT`` actually executes the original +source script in the project's source tree, and is created when the +"setup.py develop" command is run. A ``SCRIPT`` wrapper, on the other +hand, uses the "installed" script written to the ``EGG-INFO/scripts`` +subdirectory of the corresponding ``.egg`` zipfile or directory. +(``.egg-info`` eggs do not have script wrappers associated with them, +except in the "setup.py develop" case.) + +The purpose of including the marker line in generated script wrappers is +to facilitate introspection of installed scripts, and their relationship +to installed eggs. For example, an uninstallation tool could use this +data to identify what scripts can safely be removed, and/or identify +what scripts would stop working if a particular egg is uninstalled. diff --git a/docs/deprecated/resource_extraction.rst b/docs/deprecated/resource_extraction.rst new file mode 100644 index 0000000000..c481e339d0 --- /dev/null +++ b/docs/deprecated/resource_extraction.rst @@ -0,0 +1,54 @@ +.. _Automatic Resource Extraction: + +Automatic Resource Extraction +============================= + +In a modern setup, Python packages are usually installed as directories, +and all the files can be found on deterministic locations on the disk. +This means that most of the tools expect package resources to be "real" files. + +There are a few occasions however that packages are loaded in a different way +(e.g., from a zip file), which is incompatible with the assumptions mentioned above. +Moreover, a package developer may also include non-extension native libraries or other files that +C extensions may expect to be able to access. + +In these scenarios, the use of :mod:`importlib.resources` is recommended. + +Old implementations (prior to the advent of :mod:`importlib.resources`) and +long-living projects, however, may still rely on the library ``pkg_resources`` +to access these files. + +If you have to support such systems, or want to provide backward compatibility +for ``pkg_resources``, you may need to add an special configuration +to ``setuptools`` when packaging a project. +This can be done by listing as ``eager_resources`` (argument to ``setup()`` +in ``setup.py`` or field in ``setup.cfg``) all the files that need to be +extracted together, whenever a C extension in the project is imported. + +This is especially important if your project includes shared libraries *other* +than ``distutils``/``setuptools``-built C extensions, and those shared libraries use file +extensions other than ``.dll``, ``.so``, or ``.dylib``, which are the +extensions that setuptools 0.6a8 and higher automatically detects as shared +libraries and adds to the ``native_libs.txt`` file for you. Any shared +libraries whose names do not end with one of those extensions should be listed +as ``eager_resources``, because they need to be present in the filesystem when +he C extensions that link to them are used. + +The ``pkg_resources`` runtime for compressed packages will automatically +extract *all* C extensions and ``eager_resources`` at the same time, whenever +*any* C extension or eager resource is requested via the ``resource_filename()`` +API. (C extensions are imported using ``resource_filename()`` internally.) +This ensures that C extensions will see all of the "real" files that they +expect to see. + +Note also that you can list directory resource names in ``eager_resources`` as +well, in which case the directory's contents (including subdirectories) will be +extracted whenever any C extension or eager resource is requested. + +Please note that if you're not sure whether you need to use this argument, you +don't! It's really intended to support projects with lots of non-Python +dependencies and as a last resort for crufty projects that can't otherwise +handle being compressed. If your package is pure Python, Python plus data +files, or Python plus C, you really don't need this. You've got to be using +either C or an external program that needs "real" files in your project before +there's any possibility of ``eager_resources`` being relevant to your project. diff --git a/docs/deprecated/zip_safe.rst b/docs/deprecated/zip_safe.rst new file mode 100644 index 0000000000..8afe8ac386 --- /dev/null +++ b/docs/deprecated/zip_safe.rst @@ -0,0 +1,74 @@ +Understanding the ``zip_safe`` flag +=================================== + +The ``zip_safe`` flag is a ``setuptools`` configuration mainly associated +with the ``egg`` distribution format +(which got replaced in the ecosystem by the newer ``wheel`` format) and the +``easy_install`` command (deprecated in ``setuptools`` v58.3.0). + +It is very unlikely that the values of ``zip_safe`` will affect modern +deployments that use :pypi:`pip` for installing packages. +Moreover, new users of ``setuptools`` should not attempt to create egg files +using the deprecated ``build_egg`` command. +Therefore, this flag is considered **obsolete**. + +This document, however, describes what was the historical motivation behind +this flag, and how it was used. + +Historical Motivation +--------------------- + +For some use cases (such as bundling as part of a larger application), Python +packages may be run directly from a zip file. +Not all packages, however, are capable of running in compressed form, because +they may expect to be able to access either source code or data files as +normal operating system files. + +In the past, ``setuptools`` would install a project distributed +as a zipfile or a directory (via the ``easy_install`` command or +``python setup.py install``), +the default choice being determined by the project's ``zip_safe`` flag. + +How the ``zip_safe`` flag was used? +----------------------------------- + +To set this flag, a developer would pass a boolean value for the ``zip_safe`` argument to the +``setup()`` function, or omit it. When omitted, the ``bdist_egg`` +command would analyze the project's contents to see if it could detect any +conditions preventing the project from working in a zipfile. + +This was extremely conservative: ``bdist_egg`` would consider the +project unsafe if it contained any C extensions or datafiles whatsoever. This +does *not* mean that the project couldn't or wouldn't work as a zipfile! It just +means that the ``bdist_egg`` authors were not yet comfortable asserting that +the project *would* work. If the project did not contain any C or data files, and did not +attempt to perform ``__file__`` or ``__path__`` introspection or source code manipulation, then +there was an extremely solid chance the project will work when installed as a +zipfile. (And if the project used ``pkg_resources`` for all its data file +access, then C extensions and other data files shouldn't be a problem at all. +See the :ref:`Accessing Data Files at Runtime` section for more information.) + +The developer could manually set ``zip_safe`` to ``True`` to perform tests, +or to override the default behaviour (after checking all the warnings and +understanding the implications), this would allow ``setuptools`` to install the +project as a zip file. Alternatively, by setting ``zip_safe`` to ``False``, +developers could force ``setuptools`` to always install the project as a +directory. + +Modern ways of loading packages from zip files +---------------------------------------------- + +Currently, popular Python package installers (such as :pypi:`pip`) and package +indexes (such as PyPI_) consider that distribution packages are always +installed as a directory. +It is however still possible to load packages from zip files added to +:obj:`sys.path`, thanks to the :mod:`zipimport` module +and the :mod:`importlib` machinery provided by Python standard library. + +When working with modules loaded from a zip file, it is important to keep in +mind that values of ``__file__`` and ``__path__`` might not work as expected. +Please check the documentation for :mod:`importlib.resources`, if file +locations are important for your use case. + + +.. _PyPI: https://pypi.org diff --git a/docs/development/developer-guide.rst b/docs/development/developer-guide.rst new file mode 100644 index 0000000000..ae1b58f2f5 --- /dev/null +++ b/docs/development/developer-guide.rst @@ -0,0 +1,188 @@ +================================ +Developer's Guide for Setuptools +================================ + +If you want to know more about contributing on Setuptools, this is the place. + + +------------------- +Recommended Reading +------------------- + +Please read `How to write the perfect pull request +`_ for some tips +on contributing to open source projects. Although the article is not +authoritative, it was authored by the maintainer of Setuptools, so reflects +his opinions and will improve the likelihood of acceptance and quality of +contribution. + +------------------ +Project Management +------------------ + +Setuptools is maintained primarily in GitHub at `this home +`_. Setuptools is maintained under the +Python Packaging Authority (PyPA) with several core contributors. All bugs +for Setuptools are filed and the canonical source is maintained in GitHub. + +User support and discussions are done through +`GitHub Discussions `_, +or the issue tracker (for specific issues). + +Discussions about development happen on GitHub Discussions or +the ``setuptools`` channel on `PyPA Discord `_. + +----------------- +Authoring Tickets +----------------- + +Before authoring any source code, it's often prudent to file a ticket +describing the motivation behind making changes. First search to see if a +ticket already exists for your issue. If not, create one. Try to think from +the perspective of the reader. Explain what behavior you expected, what you +got instead, and what factors might have contributed to the unexpected +behavior. In GitHub, surround a block of code or traceback with the triple +backtick "\`\`\`" so that it is formatted nicely. + +Filing a ticket provides a forum for justification, discussion, and +clarification. The ticket provides a record of the purpose for the change and +any hard decisions that were made. It provides a single place for others to +reference when trying to understand why the software operates the way it does +or why certain changes were made. + +Setuptools makes extensive use of hyperlinks to tickets in the changelog so +that system integrators and other users can get a quick summary, but then +jump to the in-depth discussion about any subject referenced. + +--------------------- +Making a pull request +--------------------- + +When making a pull request, please +:ref:`include a short summary of the changes ` and a reference to any issue tickets that the PR is +intended to solve. +All PRs with code changes should include tests. All changes should +include a changelog entry. + +.. include:: ../../newsfragments/README.rst + +------------------- +Auto-Merge Requests +------------------- + +To support running all code through CI, even lightweight contributions, +the project employs Mergify to auto-merge pull requests tagged as +auto-merge. + +Use ``hub pull-request -l auto-merge`` to create such a pull request +from the command line after pushing a new branch. + +------- +Testing +------- + +The primary tests are run using tox. Make sure you have tox installed, +and invoke it:: + + $ tox + +Under continuous integration, additional tests may be run. See the +``.travis.yml`` file for full details on the tests run under Travis-CI. + +------------------- +Semantic Versioning +------------------- + +Setuptools follows ``semver``. + +.. explain value of reflecting meaning in versions. + +---------------------- +Building Documentation +---------------------- + +Setuptools relies on the `Sphinx`_ system for building documentation. +The `published documentation`_ is hosted on Read the Docs. + +To build the docs locally, use tox:: + + $ tox -e docs + +.. _Sphinx: https://www.sphinx-doc.org/en/master/ +.. _published documentation: https://setuptools.pypa.io/en/latest/ + +--------------------- +Vendored Dependencies +--------------------- + +Setuptools has some dependencies, but due to `bootstrapping issues +`_, those dependencies +cannot be declared as they won't be resolved soon enough to build +setuptools from source. Eventually, this limitation may be lifted as +PEP 517/518 reach ubiquitous adoption, but for now, Setuptools +cannot declare dependencies other than through +``setuptools/_vendor/vendored.txt`` and +``pkg_resources/_vendor/vendored.txt``. + +All the dependencies specified in these files are "vendorized" using a +simple Python script ``tools/vendor.py``. + +To refresh the dependencies, run the following command:: + + $ tox -e vendor + + +------------------------------------ +Code conventions and other practices +------------------------------------ + +Setuptools utilizes the `skeleton `_ +framework as a foundation for sharing reusable maintenance tasks +across different projects in the ecosystem. + +This also means that the project adheres to the same coding conventions +and other practices described in the `skeleton documentation +`_. + +Moreover, changes in the code base should be kept as compatible as possible +to ``skeleton`` to avoid merge conflicts, or accidental regressions on +periodical merges. + +Finally, the ``setuptools/_distutils`` directory should not be modified +directly when contributing to the ``setuptools`` project. +Instead, this directory is maintained as a separated project in +https://github.com/pypa/distutils, and periodically merged into ``setuptools``. + + +---------------- +Type annotations +---------------- + +Most standards and best practices are enforced by +`Ruff `_'s ``ANN2``, ``FA``, ``PYI``, ``UP`` +and ``YTT`` rules. + +Explicit return types have to be added for typed public functions whose +parameters are *all* annotated. This is enforced by ``ANN2``, but it's worth noting +that this is due to mypy inferring ``Any`` even for simple return types. Mypy also +doesn't count functions with missing parameter annotations as "typed". (see +`python/mypy#4409 `_, +`python/mypy#10149 `_ and +`python/mypy#6646 `_). +Otherwise, return annotations can be omitted to reduce verbosity, +especially for complex return types. + +Instead of typing an explicit return type annotation as +``Generator[..., None, None]``, we'll prefer using an ``Iterator`` as it is more +concise and conceptually easier to deal with. Returning a ``Generator`` with no +``yield`` type or ``send`` type can sometimes be considered as exposing +implementation details. See +`Y058 `_. + +Avoid importing private type-checking-only symbols. These are often +`typeshed `_ internal details and are not +guaranteed to be stable. +Importing from ``_typeshed`` or ``typing_extensions`` is fine, but if you find +yourself importing the same symbol in ``TYPE_CHECKING`` blocks a lot, consider +implementing an alias directly in ``setuptools``. diff --git a/docs/development/index.rst b/docs/development/index.rst new file mode 100644 index 0000000000..7ee52361ec --- /dev/null +++ b/docs/development/index.rst @@ -0,0 +1,34 @@ +------------------------- +Development on Setuptools +------------------------- + +Setuptools is maintained by the Python community under the Python Packaging +Authority (PyPA) and led by Jason R. Coombs. + +This document describes the process by which Setuptools is developed. +This document assumes the reader has some passing familiarity with +*using* setuptools, the ``pkg_resources`` module, and pip. It +does not attempt to explain basic concepts like inter-project +dependencies, nor does it contain detailed lexical syntax for most +file formats. Neither does it explain concepts like "namespace +packages" or "resources" in any detail, as all of these subjects are +covered at length in the setuptools developer's guide and the +``pkg_resources`` reference manual. + +Instead, this is **internal** documentation for how those concepts and +features are *implemented* in concrete terms. It is intended for people +who are working on the setuptools code base, who want to be able to +troubleshoot setuptools problems, want to write code that reads the file +formats involved, or want to otherwise tinker with setuptools-generated +files and directories. + +Note, however, that these are all internal implementation details and +are therefore subject to change; stick to the published API if you don't +want to be responsible for keeping your code from breaking when +setuptools changes. You have been warned. + +.. toctree:: + :maxdepth: 1 + + developer-guide + releases diff --git a/docs/development/releases.rst b/docs/development/releases.rst new file mode 100644 index 0000000000..35b415c265 --- /dev/null +++ b/docs/development/releases.rst @@ -0,0 +1,37 @@ +=============== +Release Process +=============== + +In order to allow for rapid, predictable releases, Setuptools uses a +mechanical technique for releases, enacted on tagged commits by +continuous integration. + +To finalize a release, run ``tox -e finalize``, review, then push +the changes. + +If tests pass, the release will be uploaded to PyPI. + +Release Frequency +----------------- + +Some have asked why Setuptools is released so frequently. Because Setuptools +uses a mechanical release process, it's very easy to make releases whenever the +code is stable (tests are passing). As a result, the philosophy is to release +early and often. + +While some find the frequent releases somewhat surprising, they only empower +the user. Although releases are made frequently, users can choose the frequency +at which they use those releases. If instead Setuptools contributions were only +released in batches, the user would be constrained to only use Setuptools when +those official releases were made. With frequent releases, the user can govern +exactly how often he wishes to update. + +Frequent releases also then obviate the need for dev or beta releases in most +cases. Because releases are made early and often, bugs are discovered and +corrected quickly, in many cases before other users have yet to encounter them. + +Release Managers +---------------- + +Additionally, anyone with push access to the master branch has access to cut +releases. diff --git a/docs/history.rst b/docs/history.rst new file mode 100644 index 0000000000..7a4bb4dbee --- /dev/null +++ b/docs/history.rst @@ -0,0 +1,50 @@ +:tocdepth: 2 + +.. _changes: + +History +******* + +.. meta:: + :keywords: changelog + +.. towncrier-draft-entries:: DRAFT, unreleased as on |today| + +.. include:: ../NEWS (links).rst + +Credits +******* + +* The original design for the ``.egg`` format and the ``pkg_resources`` API was + co-created by Phillip Eby and Bob Ippolito. Bob also implemented the first + version of ``pkg_resources``, and supplied the macOS operating system version + compatibility algorithm. + +* Ian Bicking implemented many early "creature comfort" features of + easy_install, including support for downloading via Sourceforge and + Subversion repositories. Ian's comments on the Web-SIG about WSGI + application deployment also inspired the concept of "entry points" in eggs, + and he has given talks at PyCon and elsewhere to inform and educate the + community about eggs and setuptools. + +* Jim Fulton contributed time and effort to build automated tests of various + aspects of ``easy_install``, and supplied the doctests for the command-line + ``.exe`` wrappers on Windows. + +* Phillip J. Eby is the seminal author of setuptools, and + first proposed the idea of an importable binary distribution format for + Python application plug-ins. + +* Significant parts of the implementation of setuptools were funded by the Open + Source Applications Foundation, to provide a plug-in infrastructure for the + Chandler PIM application. In addition, many OSAF staffers (such as Mike + "Code Bear" Taylor) contributed their time and stress as guinea pigs for the + use of eggs and setuptools, even before eggs were "cool". (Thanks, guys!) + +* Tarek Ziadé is the principal author of the Distribute fork, which + re-invigorated the community on the project, encouraged renewed innovation, + and addressed many defects. + +* Jason R. Coombs performed the merge with Distribute, maintaining the + project for several years in coordination with the Python Packaging + Authority (PyPA). diff --git a/docs/images/banner-640x320.svg b/docs/images/banner-640x320.svg new file mode 100644 index 0000000000..4e908ea174 --- /dev/null +++ b/docs/images/banner-640x320.svg @@ -0,0 +1,36 @@ + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/docs/images/banner-negative-640x320.svg b/docs/images/banner-negative-640x320.svg new file mode 100644 index 0000000000..d45698ed08 --- /dev/null +++ b/docs/images/banner-negative-640x320.svg @@ -0,0 +1,37 @@ + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/docs/images/favicon.svg b/docs/images/favicon.svg new file mode 100644 index 0000000000..a1d31916fd --- /dev/null +++ b/docs/images/favicon.svg @@ -0,0 +1,23 @@ + + + + + + + image/svg+xml + + + + + + + + + diff --git a/docs/images/logo-demo-editable-inkscape.svg b/docs/images/logo-demo-editable-inkscape.svg new file mode 100644 index 0000000000..45969b1145 --- /dev/null +++ b/docs/images/logo-demo-editable-inkscape.svg @@ -0,0 +1,888 @@ + + + + + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + + + + + + SETUP + TOOLS + + + + + + + + + + + + + + + + + SETUP + TOOLS + + + + + + + + + + + + + + + + + + + SETUP + TOOLS + + + + + + + + + + + + + + + + + + + + SETUP + TOOLS + + + + + + + + + + + + + + + + + + + + SETUP + TOOLS + + + + + + + + + + + + + + + + + + + SETUP + TOOLS + + + + + + + + + + + + + + + + + + + + + SETUP + TOOLS + + + + + + + + + + + + + + + + + + + SETUP + TOOLS + + + + + + diff --git a/docs/images/logo-demo.svg b/docs/images/logo-demo.svg new file mode 100644 index 0000000000..6b78ebc322 --- /dev/null +++ b/docs/images/logo-demo.svg @@ -0,0 +1,150 @@ + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/docs/images/logo-editable-inkscape.svg b/docs/images/logo-editable-inkscape.svg new file mode 100644 index 0000000000..1b323a5dec --- /dev/null +++ b/docs/images/logo-editable-inkscape.svg @@ -0,0 +1,150 @@ + + + + + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + + + + SETUP + TOOLS + + + + diff --git a/docs/images/logo-inline-negative.svg b/docs/images/logo-inline-negative.svg new file mode 100644 index 0000000000..4bf63cfe20 --- /dev/null +++ b/docs/images/logo-inline-negative.svg @@ -0,0 +1,35 @@ + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/docs/images/logo-inline.svg b/docs/images/logo-inline.svg new file mode 100644 index 0000000000..6e45103d52 --- /dev/null +++ b/docs/images/logo-inline.svg @@ -0,0 +1,34 @@ + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/docs/images/logo-negative.svg b/docs/images/logo-negative.svg new file mode 100644 index 0000000000..d214204517 --- /dev/null +++ b/docs/images/logo-negative.svg @@ -0,0 +1,37 @@ + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/docs/images/logo-over-white.svg b/docs/images/logo-over-white.svg new file mode 100644 index 0000000000..1ed0138097 --- /dev/null +++ b/docs/images/logo-over-white.svg @@ -0,0 +1,37 @@ + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/docs/images/logo-symbol-only.svg b/docs/images/logo-symbol-only.svg new file mode 100644 index 0000000000..2bbf2d58d3 --- /dev/null +++ b/docs/images/logo-symbol-only.svg @@ -0,0 +1,20 @@ + + + + + + image/svg+xml + + + + + + + + + + + + + + diff --git a/docs/images/logo-text-only.svg b/docs/images/logo-text-only.svg new file mode 100644 index 0000000000..2e92580d20 --- /dev/null +++ b/docs/images/logo-text-only.svg @@ -0,0 +1,30 @@ + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/docs/images/logo.svg b/docs/images/logo.svg new file mode 100644 index 0000000000..7c793a0815 --- /dev/null +++ b/docs/images/logo.svg @@ -0,0 +1,36 @@ + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/docs/index.rst b/docs/index.rst new file mode 100644 index 0000000000..2d4089d52b --- /dev/null +++ b/docs/index.rst @@ -0,0 +1,39 @@ +.. image:: images/banner-640x320.svg + :align: center + +Documentation +============= + +Setuptools is a fully-featured, actively-maintained, and stable library +designed to facilitate packaging Python projects. + +It helps developers to easily share reusable code (in the form of a library) +and programs (e.g., CLI/GUI tools implemented in Python), that can be installed +with :pypi:`pip` and uploaded to `PyPI `_. + +.. sidebar-links:: + :home: + :pypi: + +.. toctree:: + :maxdepth: 1 + :hidden: + + User guide + build_meta + pkg_resources + references/keywords + setuptools + +.. toctree:: + :caption: Project + :maxdepth: 1 + :hidden: + + roadmap + Development guide + Backward compatibility & deprecated practice + Changelog + artwork + +.. tidelift-referral-banner:: diff --git a/docs/index.txt b/docs/index.txt deleted file mode 100644 index 6f04ffb94c..0000000000 --- a/docs/index.txt +++ /dev/null @@ -1,20 +0,0 @@ -Welcome to Distribute's documentation! -====================================== - -Contents: - -.. toctree:: - :maxdepth: 2 - - setuptools - easy_install - pkg_resources - - -Indices and tables -================== - -* :ref:`genindex` -* :ref:`modindex` -* :ref:`search` - diff --git a/docs/pkg_resources.txt b/docs/pkg_resources.rst similarity index 80% rename from docs/pkg_resources.txt rename to docs/pkg_resources.rst index 049082c849..e999a37e2e 100644 --- a/docs/pkg_resources.txt +++ b/docs/pkg_resources.rst @@ -10,27 +10,45 @@ eggs, support for merging packages that have separately-distributed modules or subpackages, and APIs for managing Python's current "working set" of active packages. - -.. contents:: **Table of Contents** +.. attention:: + Use of ``pkg_resources`` is deprecated in favor of + :mod:`importlib.resources`, :mod:`importlib.metadata` + and their backports (:pypi:`importlib_resources`, :pypi:`importlib_metadata`). + Some useful APIs are also provided by :pypi:`packaging` (e.g. requirements + and version parsing). + Users should refrain from new usage of ``pkg_resources`` and + should work to port to importlib-based solutions. -------- Overview -------- -Eggs are a distribution format for Python modules, similar in concept to Java's -"jars" or Ruby's "gems". They differ from previous Python distribution formats -in that they are importable (i.e. they can be added to ``sys.path``), and they -are *discoverable*, meaning that they carry metadata that unambiguously -identifies their contents and dependencies, and thus can be *automatically* -found and added to ``sys.path`` in response to simple requests of the form, -"get me everything I need to use docutils' PDF support". - The ``pkg_resources`` module provides runtime facilities for finding, -introspecting, activating and using eggs and other "pluggable" distribution -formats. Because these are new concepts in Python (and not that well- -established in other languages either), it helps to have a few special terms -for talking about eggs and how they can be used: +introspecting, activating and using installed Python distributions. Some +of the more advanced features (notably the support for parallel installation +of multiple versions) rely specifically on the "egg" format (either as a +zip archive or subdirectory), while others (such as plugin discovery) will +work correctly so long as "egg-info" metadata directories are available for +relevant distributions. + +Eggs are a distribution format for Python modules, similar in concept to +Java's "jars" or Ruby's "gems", or the "wheel" format defined in PEP 427. +However, unlike a pure distribution format, eggs can also be installed and +added directly to ``sys.path`` as an import location. When installed in +this way, eggs are *discoverable*, meaning that they carry metadata that +unambiguously identifies their contents and dependencies. This means that +an installed egg can be *automatically* found and added to ``sys.path`` in +response to simple requests of the form, "get me everything I need to use +docutils' PDF support". This feature allows mutually conflicting versions of +a distribution to co-exist in the same Python installation, with individual +applications activating the desired version at runtime by manipulating the +contents of ``sys.path`` (this differs from the virtual environment +approach, which involves creating isolated environments for each +application). + +The following terms are needed in order to explain the capabilities offered +by this module: project A library, framework, script, plugin, application, or collection of data @@ -50,7 +68,7 @@ importable distribution pluggable distribution An importable distribution whose filename unambiguously identifies its - release (i.e. project and version), and whose contents unamabiguously + release (i.e. project and version), and whose contents unambiguously specify what releases of other projects will satisfy its runtime requirements. @@ -79,14 +97,18 @@ eggs with ``.egg`` and follows the egg naming conventions, and contain an ``EGG-INFO`` subdirectory (zipped or otherwise). Development eggs are normal directories of Python code with one or more ``ProjectName.egg-info`` - subdirectories. And egg links are ``*.egg-link`` files that contain the - name of a built or development egg, to support symbolic linking on - platforms that do not have native symbolic links. + subdirectories. The development egg format is also used to provide a + default version of a distribution that is available to software that + doesn't use ``pkg_resources`` to request specific versions. Egg links + are ``*.egg-link`` files that contain the name of a built or + development egg, to support symbolic linking on platforms that do not + have native symbolic links (or where the symbolic link support is + limited). (For more information about these terms and concepts, see also this `architectural overview`_ of ``pkg_resources`` and Python Eggs in general.) -.. _architectural overview: http://mail.python.org/pipermail/distutils-sig/2005-June/004652.html +.. _architectural overview: https://mail.python.org/pipermail/distutils-sig/2005-June/004652.html .. ----------------- @@ -121,16 +143,19 @@ Namespace Package Support A namespace package is a package that only contains other packages and modules, with no direct contents of its own. Such packages can be split across -multiple, separately-packaged distributions. Normally, you do not need to use -the namespace package APIs directly; instead you should supply the -``namespace_packages`` argument to ``setup()`` in your project's ``setup.py``. -See the `setuptools documentation on namespace packages`_ for more information. +multiple, separately-packaged distributions. They are normally used to split +up large packages produced by a single organization, such as in the ``zope`` +namespace package for Zope Corporation packages, and the ``peak`` namespace +package for the Python Enterprise Application Kit. -However, if for some reason you need to manipulate namespace packages or -directly alter ``sys.path`` at runtime, you may find these APIs useful: +To create a namespace package, you list it in the ``namespace_packages`` +argument to ``setup()``, in your project's ``setup.py``. (See the +:ref:`setuptools documentation on namespace packages ` for +more information on this.) Also, you must add a ``declare_namespace()`` call +in the package's ``__init__.py`` file(s): ``declare_namespace(name)`` - Declare that the dotted package name `name` is a "namespace package" whose + Declare that the dotted package name ``name`` is a "namespace package" whose contained packages and modules may be spread across multiple distributions. The named package's ``__path__`` will be extended to include the corresponding package in all distributions on ``sys.path`` that contain a @@ -144,7 +169,7 @@ Applications that manipulate namespace packages or directly alter ``sys.path`` at runtime may also need to use this API function: ``fixup_namespace_packages(path_item)`` - Declare that `path_item` is a newly added item on ``sys.path`` that may + Declare that ``path_item`` is a newly added item on ``sys.path`` that may need to be used to update existing namespace packages. Ordinarily, this is called for you when an egg is automatically added to ``sys.path``, but if your application modifies ``sys.path`` to include locations that may @@ -156,8 +181,6 @@ filesystem and zip importers, you can extend its support to other "importers" compatible with PEP 302 using the ``register_namespace_handler()`` function. See the section below on `Supporting Custom Importers`_ for details. -.. _setuptools documentation on namespace packages: http://peak.telecommunity.com/DevCenter/setuptools#namespace-packages - ``WorkingSet`` Objects ====================== @@ -180,7 +203,7 @@ not provide any way to detect arbitrary changes to a list object like ``working_set`` based on changes to ``sys.path``. ``WorkingSet(entries=None)`` - Create a ``WorkingSet`` from an iterable of path entries. If `entries` + Create a ``WorkingSet`` from an iterable of path entries. If ``entries`` is not supplied, it defaults to the value of ``sys.path`` at the time the constructor is called. @@ -190,20 +213,31 @@ not provide any way to detect arbitrary changes to a list object like is designed so that the ``working_set`` is used by default, such that you don't have to explicitly refer to it most of the time. +All distributions available directly on ``sys.path`` will be activated +automatically when ``pkg_resources`` is imported. This behaviour can cause +version conflicts for applications which require non-default versions of +those distributions. To handle this situation, ``pkg_resources`` checks for a +``__requires__`` attribute in the ``__main__`` module when initializing the +default working set, and uses this to ensure a suitable version of each +affected distribution is activated. For example:: + + __requires__ = ["CherryPy < 3"] # Must be set before pkg_resources import + import pkg_resources + Basic ``WorkingSet`` Methods ---------------------------- -The following methods of ``WorkingSet`` objects are also available as module- -level functions in ``pkg_resources`` that apply to the default ``working_set`` -instance. Thus, you can use e.g. ``pkg_resources.require()`` as an -abbreviation for ``pkg_resources.working_set.require()``: +The following methods of ``WorkingSet`` objects are also available as +module-level functions in ``pkg_resources`` that apply to the default +``working_set`` instance. Thus, you can use e.g. ``pkg_resources.require()`` +as an abbreviation for ``pkg_resources.working_set.require()``: ``require(*requirements)`` - Ensure that distributions matching `requirements` are activated + Ensure that distributions matching ``requirements`` are activated - `requirements` must be a string or a (possibly-nested) sequence + ``requirements`` must be a string or a (possibly-nested) sequence thereof, specifying the distributions and versions required. The return value is a sequence of the distributions that needed to be activated to fulfill the requirements; all relevant distributions are @@ -217,8 +251,8 @@ abbreviation for ``pkg_resources.working_set.require()``: interactive interpreter hacking than for production use. If you're creating an actual library or application, it's strongly recommended that you create a "setup.py" script using ``setuptools``, and declare all your requirements - there. That way, tools like EasyInstall can automatically detect what - requirements your package has, and deal with them accordingly. + there. That way, tools like pip can automatically detect what requirements + your package has, and deal with them accordingly. Note that calling ``require('SomePackage')`` will not install ``SomePackage`` if it isn't already present. If you need to do this, you @@ -231,8 +265,8 @@ abbreviation for ``pkg_resources.working_set.require()``: ``obtain()`` method of ``Environment`` objects. ``run_script(requires, script_name)`` - Locate distribution specified by `requires` and run its `script_name` - script. `requires` must be a string containing a requirement specifier. + Locate distribution specified by ``requires`` and run its ``script_name`` + script. ``requires`` must be a string containing a requirement specifier. (See `Requirements Parsing`_ below for the syntax.) The script, if found, will be executed in *the caller's globals*. That's @@ -246,11 +280,11 @@ abbreviation for ``pkg_resources.working_set.require()``: object's `Metadata API`_ instead. ``iter_entry_points(group, name=None)`` - Yield entry point objects from `group` matching `name` + Yield entry point objects from ``group`` matching ``name`` - If `name` is None, yields all entry points in `group` from all + If ``name`` is None, yields all entry points in ``group`` from all distributions in the working set, otherwise only ones matching both - `group` and `name` are yielded. Entry points are yielded from the active + ``group`` and ``name`` are yielded. Entry points are yielded from the active distributions in the order that the distributions appear in the working set. (For the global ``working_set``, this should be the same as the order that they are listed in ``sys.path``.) Note that within the entry points @@ -273,14 +307,14 @@ instance: called by the ``WorkingSet()`` constructor during initialization. This method uses ``find_distributions(entry,True)`` to find distributions - corresponding to the path entry, and then ``add()`` them. `entry` is + corresponding to the path entry, and then ``add()`` them. ``entry`` is always appended to the ``entries`` attribute, even if it is already present, however. (This is because ``sys.path`` can contain the same value more than once, and the ``entries`` attribute should be able to reflect this.) ``__contains__(dist)`` - True if `dist` is active in this ``WorkingSet``. Note that only one + True if ``dist`` is active in this ``WorkingSet``. Note that only one distribution for a given project can be active in a given ``WorkingSet``. ``__iter__()`` @@ -289,34 +323,34 @@ instance: added to the working set. ``find(req)`` - Find a distribution matching `req` (a ``Requirement`` instance). + Find a distribution matching ``req`` (a ``Requirement`` instance). If there is an active distribution for the requested project, this returns it, as long as it meets the version requirement specified by - `req`. But, if there is an active distribution for the project and it - does *not* meet the `req` requirement, ``VersionConflict`` is raised. + ``req``. But, if there is an active distribution for the project and it + does *not* meet the ``req`` requirement, ``VersionConflict`` is raised. If there is no active distribution for the requested project, ``None`` is returned. ``resolve(requirements, env=None, installer=None)`` - List all distributions needed to (recursively) meet `requirements` + List all distributions needed to (recursively) meet ``requirements`` - `requirements` must be a sequence of ``Requirement`` objects. `env`, + ``requirements`` must be a sequence of ``Requirement`` objects. ``env``, if supplied, should be an ``Environment`` instance. If not supplied, an ``Environment`` is created from the working set's - ``entries``. `installer`, if supplied, will be invoked with each + ``entries``. ``installer``, if supplied, will be invoked with each requirement that cannot be met by an already-installed distribution; it should return a ``Distribution`` or ``None``. (See the ``obtain()`` method - of `Environment Objects`_, below, for more information on the `installer` + of `Environment Objects`_, below, for more information on the ``installer`` argument.) ``add(dist, entry=None)`` - Add `dist` to working set, associated with `entry` + Add ``dist`` to working set, associated with ``entry`` - If `entry` is unspecified, it defaults to ``dist.location``. On exit from - this routine, `entry` is added to the end of the working set's ``.entries`` + If ``entry`` is unspecified, it defaults to ``dist.location``. On exit from + this routine, ``entry`` is added to the end of the working set's ``.entries`` (if it wasn't already present). - `dist` is only added to the working set if it's for a project that + ``dist`` is only added to the working set if it's for a project that doesn't already have a distribution active in the set. If it's successfully added, any callbacks registered with the ``subscribe()`` method will be called. (See `Receiving Change Notifications`_, below.) @@ -373,7 +407,7 @@ environment for the newest version of each project that can be safely loaded without conflicts or missing requirements. ``find_plugins(plugin_env, full_env=None, fallback=True)`` - Scan `plugin_env` and identify which distributions could be added to this + Scan ``plugin_env`` and identify which distributions could be added to this working set without version conflicts or missing requirements. Example usage:: @@ -384,19 +418,19 @@ without conflicts or missing requirements. map(working_set.add, distributions) # add plugins+libs to sys.path print "Couldn't load", errors # display errors - The `plugin_env` should be an ``Environment`` instance that contains only + The ``plugin_env`` should be an ``Environment`` instance that contains only distributions that are in the project's "plugin directory" or directories. - The `full_env`, if supplied, should be an ``Environment`` instance that + The ``full_env``, if supplied, should be an ``Environment`` instance that contains all currently-available distributions. - If `full_env` is not supplied, one is created automatically from the + If ``full_env`` is not supplied, one is created automatically from the ``WorkingSet`` this method is called on, which will typically mean that every directory on ``sys.path`` will be scanned for distributions. - This method returns a 2-tuple: (`distributions`, `error_info`), where - `distributions` is a list of the distributions found in `plugin_env` that + This method returns a 2-tuple: (``distributions``, ``error_info``), where + ``distributions`` is a list of the distributions found in ``plugin_env`` that were loadable, along with any other distributions that are needed to resolve - their dependencies. `error_info` is a dictionary mapping unloadable plugin + their dependencies. ``error_info`` is a dictionary mapping unloadable plugin distributions to an exception instance describing the error that occurred. Usually this will be a ``DistributionNotFound`` or ``VersionConflict`` instance. @@ -408,7 +442,7 @@ without conflicts or missing requirements. metadata tracking and hooks to be activated. The resolution algorithm used by ``find_plugins()`` is as follows. First, - the project names of the distributions present in `plugin_env` are sorted. + the project names of the distributions present in ``plugin_env`` are sorted. Then, each project's eggs are tried in descending version order (i.e., newest version first). @@ -418,7 +452,7 @@ without conflicts or missing requirements. the next project name, and no older eggs for that project are tried. If the resolution attempt fails, however, the error is added to the error - dictionary. If the `fallback` flag is true, the next older version of the + dictionary. If the ``fallback`` flag is true, the next older version of the plugin is tried, until a working version is found. If false, the resolution process continues with the next plugin project name. @@ -427,7 +461,7 @@ without conflicts or missing requirements. may not be able to safely downgrade a version of a package. Others may want to ensure that a new plugin configuration is either 100% good or else revert to a known-good configuration. (That is, they may wish to revert to - a known configuration if the `error_info` return value is non-empty.) + a known configuration if the ``error_info`` return value is non-empty.) Note that this algorithm gives precedence to satisfying the dependencies of alphabetically prior project names in case of version conflicts. If two @@ -445,22 +479,22 @@ that are present and potentially importable on the current platform. distributions during dependency resolution. ``Environment(search_path=None, platform=get_supported_platform(), python=PY_MAJOR)`` - Create an environment snapshot by scanning `search_path` for distributions - compatible with `platform` and `python`. `search_path` should be a + Create an environment snapshot by scanning ``search_path`` for distributions + compatible with ``platform`` and ``python``. ``search_path`` should be a sequence of strings such as might be used on ``sys.path``. If a - `search_path` isn't supplied, ``sys.path`` is used. + ``search_path`` isn't supplied, ``sys.path`` is used. - `platform` is an optional string specifying the name of the platform + ``platform`` is an optional string specifying the name of the platform that platform-specific distributions must be compatible with. If - unspecified, it defaults to the current platform. `python` is an + unspecified, it defaults to the current platform. ``python`` is an optional string naming the desired version of Python (e.g. ``'2.4'``); it defaults to the currently-running version. - You may explicitly set `platform` (and/or `python`) to ``None`` if you + You may explicitly set ``platform`` (and/or ``python``) to ``None`` if you wish to include *all* distributions, not just those compatible with the running platform or Python version. - Note that `search_path` is scanned immediately for distributions, and the + Note that ``search_path`` is scanned immediately for distributions, and the resulting ``Environment`` is a snapshot of the found distributions. It is not automatically updated if the system's state changes due to e.g. installation or removal of distributions. @@ -476,15 +510,15 @@ distributions during dependency resolution. The yielded names are always in lower case. ``add(dist)`` - Add `dist` to the environment if it matches the platform and python version + Add ``dist`` to the environment if it matches the platform and python version specified at creation time, and only if the distribution hasn't already been added. (i.e., adding the same distribution more than once is a no-op.) ``remove(dist)`` - Remove `dist` from the environment. + Remove ``dist`` from the environment. ``can_add(dist)`` - Is distribution `dist` acceptable for this environment? If it's not + Is distribution ``dist`` acceptable for this environment? If it's not compatible with the ``platform`` and ``python`` version values specified when the environment was created, a false value is returned. @@ -506,34 +540,34 @@ distributions during dependency resolution. are silently ignored. ``best_match(req, working_set, installer=None)`` - Find distribution best matching `req` and usable on `working_set` + Find distribution best matching ``req`` and usable on ``working_set`` - This calls the ``find(req)`` method of the `working_set` to see if a + This calls the ``find(req)`` method of the ``working_set`` to see if a suitable distribution is already active. (This may raise ``VersionConflict`` if an unsuitable version of the project is already - active in the specified `working_set`.) If a suitable distribution isn't + active in the specified ``working_set``.) If a suitable distribution isn't active, this method returns the newest distribution in the environment - that meets the ``Requirement`` in `req`. If no suitable distribution is - found, and `installer` is supplied, then the result of calling + that meets the ``Requirement`` in ``req``. If no suitable distribution is + found, and ``installer`` is supplied, then the result of calling the environment's ``obtain(req, installer)`` method will be returned. ``obtain(requirement, installer=None)`` Obtain a distro that matches requirement (e.g. via download). In the base ``Environment`` class, this routine just returns - ``installer(requirement)``, unless `installer` is None, in which case + ``installer(requirement)``, unless ``installer`` is None, in which case None is returned instead. This method is a hook that allows subclasses to attempt other ways of obtaining a distribution before falling back - to the `installer` argument. + to the ``installer`` argument. ``scan(search_path=None)`` - Scan `search_path` for distributions usable on `platform` + Scan ``search_path`` for distributions usable on ``platform`` - Any distributions found are added to the environment. `search_path` should + Any distributions found are added to the environment. ``search_path`` should be a sequence of strings such as might be used on ``sys.path``. If not supplied, ``sys.path`` is used. Only distributions conforming to the platform/python version defined at initialization are added. This method is a shortcut for using the ``find_distributions()`` function to - find the distributions from each item in `search_path`, and then calling + find the distributions from each item in ``search_path``, and then calling ``add()`` to add each one to the environment. @@ -560,27 +594,15 @@ Requirements Parsing parse multiple specifiers from a string or iterable of strings, use ``parse_requirements()`` instead.) - The syntax of a requirement specifier can be defined in EBNF as follows:: - - requirement ::= project_name versionspec? extras? - versionspec ::= comparison version (',' comparison version)* - comparison ::= '<' | '<=' | '!=' | '==' | '>=' | '>' - extras ::= '[' extralist? ']' - extralist ::= identifier (',' identifier)* - project_name ::= identifier - identifier ::= [-A-Za-z0-9_]+ - version ::= [-A-Za-z0-9_.]+ - - Tokens can be separated by whitespace, and a requirement can be continued - over multiple lines using a backslash (``\\``). Line-end comments (using - ``#``) are also allowed. + The syntax of a requirement specifier is defined in full in PEP 508. Some examples of valid requirement specifiers:: FooProject >= 1.2 Fizzy [foo, bar] - PickyThing<1.6,>1.9,!=1.9.6,<2.0a0,==2.4c1 + PickyThing>1.6,<=1.9,!=1.8.6 SomethingWhoseVersionIDontCareAbout + SomethingWithMarker[foo]>1.0;python_version<"2.7" The project name is the only required portion of a requirement string, and if it's the only thing supplied, the requirement will accept any version @@ -595,34 +617,36 @@ Requirements Parsing or activation of both Report-O-Rama and any libraries it needs in order to provide PDF support. For example, you could use:: - easy_install.py Report-O-Rama[PDF] + pip install Report-O-Rama[PDF] - To install the necessary packages using the EasyInstall program, or call + To install the necessary packages using pip, or call ``pkg_resources.require('Report-O-Rama[PDF]')`` to add the necessary distributions to sys.path at runtime. + The "markers" in a requirement are used to specify when a requirement + should be installed -- the requirement will be installed if the marker + evaluates as true in the current environment. For example, specifying + ``argparse;python_version<"3.0"`` will not install in an Python 3 + environment, but will in a Python 2 environment. ``Requirement`` Methods and Attributes -------------------------------------- ``__contains__(dist_or_version)`` - Return true if `dist_or_version` fits the criteria for this requirement. - If `dist_or_version` is a ``Distribution`` object, its project name must + Return true if ``dist_or_version`` fits the criteria for this requirement. + If ``dist_or_version`` is a ``Distribution`` object, its project name must match the requirement's project name, and its version must meet the - requirement's version criteria. If `dist_or_version` is a string, it is + requirement's version criteria. If ``dist_or_version`` is a string, it is parsed using the ``parse_version()`` utility function. Otherwise, it is assumed to be an already-parsed version. The ``Requirement`` object's version specifiers (``.specs``) are internally sorted into ascending version order, and used to establish what ranges of versions are acceptable. Adjacent redundant conditions are effectively - consolidated (e.g. ``">1, >2"`` produces the same results as ``">1"``, and - ``"<2,<3"`` produces the same results as``"<3"``). ``"!="`` versions are + consolidated (e.g. ``">1, >2"`` produces the same results as ``">2"``, and + ``"<2,<3"`` produces the same results as ``"<2"``). ``"!="`` versions are excised from the ranges they fall within. The version being tested for acceptability is then checked for membership in the resulting ranges. - (Note that providing conflicting conditions for the same version (e.g. - ``"<2,>=2"`` or ``"==2,!=2"``) is meaningless and may therefore produce - bizarre results when compared with actual version number(s).) ``__eq__(other_requirement)`` A requirement compares equal to another requirement if they have @@ -650,12 +674,15 @@ Requirements Parsing ``specs`` A list of ``(op,version)`` tuples, sorted in ascending parsed-version - order. The `op` in each tuple is a comparison operator, represented as - a string. The `version` is the (unparsed) version number. The relative - order of tuples containing the same version numbers is undefined, since - having more than one operator for a given version is either redundant or - self-contradictory. + order. The ``op`` in each tuple is a comparison operator, represented as + a string. The ``version`` is the (unparsed) version number. + +``marker`` + An instance of ``packaging.markers.Marker`` that allows evaluation + against the current environment. May be None if no marker specified. +``url`` + The location to download the requirement from if specified. Entry Points ============ @@ -682,7 +709,7 @@ entry point group and look for entry points named "pre_process" and To advertise an entry point, a project needs to use ``setuptools`` and provide an ``entry_points`` argument to ``setup()`` in its setup script, so that the entry points will be included in the distribution's metadata. For more -details, see the ``setuptools`` documentation. (XXX link here to setuptools) +details, see :ref:`Advertising Behavior`. Each project distribution can advertise at most one entry point of a given name within the same entry point group. For example, a distutils extension @@ -700,14 +727,14 @@ in sys.path order, etc. Convenience API --------------- -In the following functions, the `dist` argument can be a ``Distribution`` +In the following functions, the ``dist`` argument can be a ``Distribution`` instance, a ``Requirement`` instance, or a string specifying a requirement (i.e. project name, version, etc.). If the argument is a string or ``Requirement``, the specified distribution is located (and added to sys.path if not already present). An error will be raised if a matching distribution is not available. -The `group` argument should be a string containing a dotted identifier, +The ``group`` argument should be a string containing a dotted identifier, identifying an entry point group. If you are defining an entry point group, you should include some portion of your package's name in the group name so as to avoid collision with other packages' entry point groups. @@ -717,25 +744,25 @@ to avoid collision with other packages' entry point groups. ``ImportError``. ``get_entry_info(dist, group, name)`` - Return an ``EntryPoint`` object for the given `group` and `name` from + Return an ``EntryPoint`` object for the given ``group`` and ``name`` from the specified distribution. Returns ``None`` if the distribution has not advertised a matching entry point. ``get_entry_map(dist, group=None)`` - Return the distribution's entry point map for `group`, or the full entry + Return the distribution's entry point map for ``group``, or the full entry map for the distribution. This function always returns a dictionary, - even if the distribution advertises no entry points. If `group` is given, + even if the distribution advertises no entry points. If ``group`` is given, the dictionary maps entry point names to the corresponding ``EntryPoint`` - object. If `group` is None, the dictionary maps group names to + object. If ``group`` is None, the dictionary maps group names to dictionaries that then map entry point names to the corresponding ``EntryPoint`` instance in that group. ``iter_entry_points(group, name=None)`` - Yield entry point objects from `group` matching `name`. + Yield entry point objects from ``group`` matching ``name``. - If `name` is None, yields all entry points in `group` from all + If ``name`` is None, yields all entry points in ``group`` from all distributions in the working set on sys.path, otherwise only ones matching - both `group` and `name` are yielded. Entry points are yielded from + both ``group`` and ``name`` are yielded. Entry points are yielded from the active distributions in the order that the distributions appear on sys.path. (Within entry points for a particular distribution, however, there is no particular ordering.) @@ -748,26 +775,26 @@ Creating and Parsing -------------------- ``EntryPoint(name, module_name, attrs=(), extras=(), dist=None)`` - Create an ``EntryPoint`` instance. `name` is the entry point name. The - `module_name` is the (dotted) name of the module containing the advertised - object. `attrs` is an optional tuple of names to look up from the - module to obtain the advertised object. For example, an `attrs` of - ``("foo","bar")`` and a `module_name` of ``"baz"`` would mean that the + Create an ``EntryPoint`` instance. ``name`` is the entry point name. The + ``module_name`` is the (dotted) name of the module containing the advertised + object. ``attrs`` is an optional tuple of names to look up from the + module to obtain the advertised object. For example, an ``attrs`` of + ``("foo","bar")`` and a ``module_name`` of ``"baz"`` would mean that the advertised object could be obtained by the following code:: import baz advertised_object = baz.foo.bar - The `extras` are an optional tuple of "extra feature" names that the + The ``extras`` are an optional tuple of "extra feature" names that the distribution needs in order to provide this entry point. When the - entry point is loaded, these extra features are looked up in the `dist` + entry point is loaded, these extra features are looked up in the ``dist`` argument to find out what other distributions may need to be activated - on sys.path; see the ``load()`` method for more details. The `extras` - argument is only meaningful if `dist` is specified. `dist` must be + on sys.path; see the ``load()`` method for more details. The ``extras`` + argument is only meaningful if ``dist`` is specified. ``dist`` must be a ``Distribution`` instance. ``EntryPoint.parse(src, dist=None)`` (classmethod) - Parse a single entry point from string `src` + Parse a single entry point from string ``src`` Entry point syntax follows the form:: @@ -775,27 +802,27 @@ Creating and Parsing The entry name and module name are required, but the ``:attrs`` and ``[extras]`` parts are optional, as is the whitespace shown between - some of the items. The `dist` argument is passed through to the + some of the items. The ``dist`` argument is passed through to the ``EntryPoint()`` constructor, along with the other values parsed from - `src`. + ``src``. ``EntryPoint.parse_group(group, lines, dist=None)`` (classmethod) - Parse `lines` (a string or sequence of lines) to create a dictionary + Parse ``lines`` (a string or sequence of lines) to create a dictionary mapping entry point names to ``EntryPoint`` objects. ``ValueError`` is - raised if entry point names are duplicated, if `group` is not a valid + raised if entry point names are duplicated, if ``group`` is not a valid entry point group name, or if there are any syntax errors. (Note: the - `group` parameter is used only for validation and to create more - informative error messages.) If `dist` is provided, it will be used to + ``group`` parameter is used only for validation and to create more + informative error messages.) If ``dist`` is provided, it will be used to set the ``dist`` attribute of the created ``EntryPoint`` objects. ``EntryPoint.parse_map(data, dist=None)`` (classmethod) - Parse `data` into a dictionary mapping group names to dictionaries mapping - entry point names to ``EntryPoint`` objects. If `data` is a dictionary, + Parse ``data`` into a dictionary mapping group names to dictionaries mapping + entry point names to ``EntryPoint`` objects. If ``data`` is a dictionary, then the keys are used as group names and the values are passed to - ``parse_group()`` as the `lines` argument. If `data` is a string or + ``parse_group()`` as the ``lines`` argument. If ``data`` is a string or sequence of lines, it is first split into .ini-style sections (using the ``split_sections()`` utility function) and the section names are used - as group names. In either case, the `dist` argument is passed through to + as group names. In either case, the ``dist`` argument is passed through to ``parse_group()`` so that the entry points will be linked to the specified distribution. @@ -808,21 +835,24 @@ correspond exactly to the constructor argument names: ``name``, ``module_name``, ``attrs``, ``extras``, and ``dist`` are all available. In addition, the following methods are provided: -``load(require=True, env=None, installer=None)`` - Load the entry point, returning the advertised Python object, or raise - ``ImportError`` if it cannot be obtained. If `require` is a true value, - then ``require(env, installer)`` is called before attempting the import. +``load()`` + Load the entry point, returning the advertised Python object. Effectively + calls ``self.require()`` then returns ``self.resolve()``. ``require(env=None, installer=None)`` Ensure that any "extras" needed by the entry point are available on sys.path. ``UnknownExtra`` is raised if the ``EntryPoint`` has ``extras``, but no ``dist``, or if the named extras are not defined by the - distribution. If `env` is supplied, it must be an ``Environment``, and it + distribution. If ``env`` is supplied, it must be an ``Environment``, and it will be used to search for needed distributions if they are not already - present on sys.path. If `installer` is supplied, it must be a callable + present on sys.path. If ``installer`` is supplied, it must be a callable taking a ``Requirement`` instance and returning a matching importable ``Distribution`` instance or None. +``resolve()`` + Resolve the entry point from its module and attrs, returning the advertised + Python object. Raises ``ImportError`` if it cannot be obtained. + ``__str__()`` The string form of an ``EntryPoint`` is a string that could be passed to ``EntryPoint.parse()`` to produce an equivalent ``EntryPoint``. @@ -848,16 +878,16 @@ available distributions, respectively.) You can also obtain ``Distribution`` objects from one of these high-level APIs: ``find_distributions(path_item, only=False)`` - Yield distributions accessible via `path_item`. If `only` is true, yield - only distributions whose ``location`` is equal to `path_item`. In other - words, if `only` is true, this yields any distributions that would be - importable if `path_item` were on ``sys.path``. If `only` is false, this - also yields distributions that are "in" or "under" `path_item`, but would + Yield distributions accessible via ``path_item``. If ``only`` is true, yield + only distributions whose ``location`` is equal to ``path_item``. In other + words, if ``only`` is true, this yields any distributions that would be + importable if ``path_item`` were on ``sys.path``. If ``only`` is false, this + also yields distributions that are "in" or "under" ``path_item``, but would not be importable unless their locations were also added to ``sys.path``. ``get_distribution(dist_spec)`` Return a ``Distribution`` object for a given ``Requirement`` or string. - If `dist_spec` is already a ``Distribution`` instance, it is returned. + If ``dist_spec`` is already a ``Distribution`` instance, it is returned. If it is a ``Requirement`` object or a string that can be parsed into one, it is used to locate and activate a matching distribution, which is then returned. @@ -866,18 +896,18 @@ However, if you're creating specialized tools for working with distributions, or creating a new distribution format, you may also need to create ``Distribution`` objects directly, using one of the three constructors below. -These constructors all take an optional `metadata` argument, which is used to -access any resources or metadata associated with the distribution. `metadata` +These constructors all take an optional ``metadata`` argument, which is used to +access any resources or metadata associated with the distribution. ``metadata`` must be an object that implements the ``IResourceProvider`` interface, or None. If it is None, an ``EmptyProvider`` is used instead. ``Distribution`` objects implement both the `IResourceProvider`_ and `IMetadataProvider Methods`_ by -delegating them to the `metadata` object. +delegating them to the ``metadata`` object. ``Distribution.from_location(location, basename, metadata=None, **kw)`` (classmethod) - Create a distribution for `location`, which must be a string such as a + Create a distribution for ``location``, which must be a string such as a URL, filename, or other string that might be used on ``sys.path``. - `basename` is a string naming the distribution, like ``Foo-1.2-py2.4.egg``. - If `basename` ends with ``.egg``, then the project's name, version, python + ``basename`` is a string naming the distribution, like ``Foo-1.2-py2.4.egg``. + If ``basename`` ends with ``.egg``, then the project's name, version, python version and platform are extracted from the filename and used to set those properties of the created distribution. Any additional keyword arguments are forwarded to the ``Distribution()`` constructor. @@ -893,8 +923,8 @@ delegating them to the `metadata` object. ``Distribution(location,metadata,project_name,version,py_version,platform,precedence)`` Create a distribution by setting its properties. All arguments are - optional and default to None, except for `py_version` (which defaults to - the current Python version) and `precedence` (which defaults to + optional and default to None, except for ``py_version`` (which defaults to + the current Python version) and ``precedence`` (which defaults to ``EGG_DIST``; for more details see ``precedence`` under `Distribution Attributes`_ below). Note that it's usually easier to use the ``from_filename()`` or ``from_location()`` constructors than to specify @@ -914,7 +944,7 @@ project_name A string, naming the project that this distribution is for. Project names are defined by a project's setup script, and they are used to identify projects on PyPI. When a ``Distribution`` is constructed, the - `project_name` argument is passed through the ``safe_name()`` utility + ``project_name`` argument is passed through the ``safe_name()`` utility function to filter out any unacceptable characters. key @@ -928,27 +958,27 @@ extras version A string denoting what release of the project this distribution contains. - When a ``Distribution`` is constructed, the `version` argument is passed + When a ``Distribution`` is constructed, the ``version`` argument is passed through the ``safe_version()`` utility function to filter out any - unacceptable characters. If no `version` is specified at construction + unacceptable characters. If no ``version`` is specified at construction time, then attempting to access this attribute later will cause the ``Distribution`` to try to discover its version by reading its ``PKG-INFO`` metadata file. If ``PKG-INFO`` is unavailable or can't be parsed, ``ValueError`` is raised. parsed_version - The ``parsed_version`` is a tuple representing a "parsed" form of the + The ``parsed_version`` is an object representing a "parsed" form of the distribution's ``version``. ``dist.parsed_version`` is a shortcut for calling ``parse_version(dist.version)``. It is used to compare or sort distributions by version. (See the `Parsing Utilities`_ section below for more information on the ``parse_version()`` function.) Note that accessing ``parsed_version`` may result in a ``ValueError`` if the ``Distribution`` - was constructed without a `version` and without `metadata` capable of + was constructed without a ``version`` and without ``metadata`` capable of supplying the missing version info. py_version The major/minor Python version the distribution supports, as a string. - For example, "2.3" or "2.4". The default is the current version of Python. + For example, "2.7" or "3.4". The default is the current version of Python. platform A string representing the platform the distribution is intended for, or @@ -974,9 +1004,9 @@ precedence ------------------------ ``activate(path=None)`` - Ensure distribution is importable on `path`. If `path` is None, + Ensure distribution is importable on ``path``. If ``path`` is None, ``sys.path`` is used instead. This ensures that the distribution's - ``location`` is in the `path` list, and it also performs any necessary + ``location`` is in the ``path`` list, and it also performs any necessary namespace package fixups or declarations. (That is, if the distribution contains namespace packages, this method ensures that they are declared, and that the distribution's contents for those namespace packages are @@ -996,7 +1026,7 @@ precedence ``requires(extras=())`` List the ``Requirement`` objects that specify this distribution's - dependencies. If `extras` is specified, it should be a sequence of names + dependencies. If ``extras`` is specified, it should be a sequence of names of "extras" defined by the distribution, and the list returned will then include any dependencies needed to support the named "extras". @@ -1023,11 +1053,11 @@ by the distribution. See the section above on `Entry Points`_ for more detailed information about these operations: ``get_entry_info(group, name)`` - Return the ``EntryPoint`` object for `group` and `name`, or None if no + Return the ``EntryPoint`` object for ``group`` and ``name``, or None if no such point is advertised by this distribution. ``get_entry_map(group=None)`` - Return the entry point map for `group`. If `group` is None, return + Return the entry point map for ``group``. If ``group`` is None, return a dictionary mapping group names to entry point maps for all groups. (An entry point map is a dictionary of entry point names to ``EntryPoint`` objects.) @@ -1055,14 +1085,15 @@ documented in later sections): * ``resource_isdir(resource_name)`` * ``resource_listdir(resource_name)`` -If the distribution was created with a `metadata` argument, these resource and -metadata access methods are all delegated to that `metadata` provider. +If the distribution was created with a ``metadata`` argument, these resource and +metadata access methods are all delegated to that ``metadata`` provider. Otherwise, they are delegated to an ``EmptyProvider``, so that the distribution will appear to have no resources or metadata. This delegation approach is used so that supporting custom importers or new distribution formats can be done simply by creating an appropriate `IResourceProvider`_ implementation; see the section below on `Supporting Custom Importers`_ for more details. +.. _ResourceManager API: ``ResourceManager`` API ======================= @@ -1087,11 +1118,11 @@ Thus, you can use the APIs below without needing an explicit Basic Resource Access --------------------- -In the following methods, the `package_or_requirement` argument may be either +In the following methods, the ``package_or_requirement`` argument may be either a Python package/module name (e.g. ``foo.bar``) or a ``Requirement`` instance. If it is a package or module name, the named module or package must be importable (i.e., be in a distribution or directory on ``sys.path``), and the -`resource_name` argument is interpreted relative to the named package. (Note +``resource_name`` argument is interpreted relative to the named package. (Note that if a module name is used, then the resource name is relative to the package immediately containing the named module. Also, you should not use use a namespace package name, because a namespace package can be spread across @@ -1102,13 +1133,13 @@ If it is a ``Requirement``, then the requirement is automatically resolved (searching the current ``Environment`` if necessary) and a matching distribution is added to the ``WorkingSet`` and ``sys.path`` if one was not already present. (Unless the ``Requirement`` can't be satisfied, in which -case an exception is raised.) The `resource_name` argument is then interpreted +case an exception is raised.) The ``resource_name`` argument is then interpreted relative to the root of the identified distribution; i.e. its first path segment will be treated as a peer of the top-level modules or packages in the distribution. -Note that resource names must be ``/``-separated paths and cannot be absolute -(i.e. no leading ``/``) or contain relative names like ``".."``. Do *not* use +Note that resource names must be ``/``-separated paths rooted at the package, +cannot contain relative names like ``".."``, and cannot be absolute. Do *not* use ``os.path`` routines to manipulate resource paths, as they are *not* filesystem paths. @@ -1122,7 +1153,7 @@ paths. will be read as-is. ``resource_string(package_or_requirement, resource_name)`` - Return the specified resource as a string. The resource is read in + Return the specified resource as ``bytes``. The resource is read in binary fashion, such that the returned string contains exactly the bytes that are stored in the resource. @@ -1197,19 +1228,19 @@ Resource Extraction If you are implementing an ``IResourceProvider`` and/or ``IMetadataProvider`` for a new distribution archive format, you may need to use the following -``IResourceManager`` methods to co-ordinate extraction of resources to the +``IResourceManager`` methods to coordinate extraction of resources to the filesystem. If you're not implementing an archive format, however, you have no need to use these methods. Unlike the other methods listed above, they are *not* available as top-level functions tied to the global ``ResourceManager``; you must therefore have an explicit ``ResourceManager`` instance to use them. ``get_cache_path(archive_name, names=())`` - Return absolute location in cache for `archive_name` and `names` + Return absolute location in cache for ``archive_name`` and ``names`` The parent directory of the resulting path will be created if it does - not already exist. `archive_name` should be the base filename of the + not already exist. ``archive_name`` should be the base filename of the enclosing egg (which may not be the name of the enclosing zipfile!), - including its ".egg" extension. `names`, if provided, should be a + including its ".egg" extension. ``names``, if provided, should be a sequence of path name parts "under" the egg's extraction location. This method should only be called by resource providers that need to @@ -1225,12 +1256,12 @@ you must therefore have an explicit ``ResourceManager`` instance to use them. wrap or handle extraction errors themselves. ``postprocess(tempname, filename)`` - Perform any platform-specific postprocessing of `tempname`. + Perform any platform-specific postprocessing of ``tempname``. Resource providers should call this method ONLY after successfully extracting a compressed resource. They must NOT call it on resources that are already in the filesystem. - `tempname` is the current (temporary) name of the file, and `filename` + ``tempname`` is the current (temporary) name of the file, and ``filename`` is the name it will be renamed to by the caller after this routine returns. @@ -1298,7 +1329,7 @@ implement the ``IMetadataProvider`` or ``IResourceProvider`` interfaces are: ``run_script(script_name, namespace)`` Execute the named script in the supplied namespace dictionary. Raises ``ResolutionError`` if there is no script by that name in the ``scripts`` - metadata directory. `namespace` should be a Python dictionary, usually + metadata directory. ``namespace`` should be a Python dictionary, usually a module dictionary if the script is being run as a module. @@ -1355,11 +1386,11 @@ with other (PEP 302-compatible) importers or module loaders, you may need to register various handlers and support functions using these APIs: ``register_finder(importer_type, distribution_finder)`` - Register `distribution_finder` to find distributions in ``sys.path`` items. - `importer_type` is the type or class of a PEP 302 "Importer" (``sys.path`` - item handler), and `distribution_finder` is a callable that, when passed a - path item, the importer instance, and an `only` flag, yields - ``Distribution`` instances found under that path item. (The `only` flag, + Register ``distribution_finder`` to find distributions in ``sys.path`` items. + ``importer_type`` is the type or class of a PEP 302 "Importer" (``sys.path`` + item handler), and ``distribution_finder`` is a callable that, when passed a + path item, the importer instance, and an ``only`` flag, yields + ``Distribution`` instances found under that path item. (The ``only`` flag, if true, means the finder should yield only ``Distribution`` objects whose ``location`` is equal to the path item provided.) @@ -1367,16 +1398,16 @@ register various handlers and support functions using these APIs: example finder function. ``register_loader_type(loader_type, provider_factory)`` - Register `provider_factory` to make ``IResourceProvider`` objects for - `loader_type`. `loader_type` is the type or class of a PEP 302 - ``module.__loader__``, and `provider_factory` is a function that, when + Register ``provider_factory`` to make ``IResourceProvider`` objects for + ``loader_type``. ``loader_type`` is the type or class of a PEP 302 + ``module.__loader__``, and ``provider_factory`` is a function that, when passed a module object, returns an `IResourceProvider`_ for that module, allowing it to be used with the `ResourceManager API`_. ``register_namespace_handler(importer_type, namespace_handler)`` - Register `namespace_handler` to declare namespace packages for the given - `importer_type`. `importer_type` is the type or class of a PEP 302 - "importer" (sys.path item handler), and `namespace_handler` is a callable + Register ``namespace_handler`` to declare namespace packages for the given + ``importer_type``. ``importer_type`` is the type or class of a PEP 302 + "importer" (sys.path item handler), and ``namespace_handler`` is a callable with a signature like this:: def namespace_handler(importer, path_entry, moduleName, module): @@ -1396,23 +1427,23 @@ IResourceProvider ----------------- ``IResourceProvider`` is an abstract class that documents what methods are -required of objects returned by a `provider_factory` registered with +required of objects returned by a ``provider_factory`` registered with ``register_loader_type()``. ``IResourceProvider`` is a subclass of ``IMetadataProvider``, so objects that implement this interface must also implement all of the `IMetadataProvider Methods`_ as well as the methods -shown here. The `manager` argument to the methods below must be an object +shown here. The ``manager`` argument to the methods below must be an object that supports the full `ResourceManager API`_ documented above. ``get_resource_filename(manager, resource_name)`` - Return a true filesystem path for `resource_name`, co-ordinating the - extraction with `manager`, if the resource must be unpacked to the + Return a true filesystem path for ``resource_name``, coordinating the + extraction with ``manager``, if the resource must be unpacked to the filesystem. ``get_resource_stream(manager, resource_name)`` - Return a readable file-like object for `resource_name`. + Return a readable file-like object for ``resource_name``. ``get_resource_string(manager, resource_name)`` - Return a string containing the contents of `resource_name`. + Return a string containing the contents of ``resource_name``. ``has_resource(resource_name)`` Does the package contain the named resource? @@ -1476,15 +1507,15 @@ where appropriate. Their inheritance tree looks like this:: ``PathMetadata(path, egg_info)`` Create an ``IResourceProvider`` for a filesystem-based distribution, where - `path` is the filesystem location of the importable modules, and `egg_info` + ``path`` is the filesystem location of the importable modules, and ``egg_info`` is the filesystem location of the distribution's metadata directory. - `egg_info` should usually be the ``EGG-INFO`` subdirectory of `path` for an - "unpacked egg", and a ``ProjectName.egg-info`` subdirectory of `path` for + ``egg_info`` should usually be the ``EGG-INFO`` subdirectory of ``path`` for an + "unpacked egg", and a ``ProjectName.egg-info`` subdirectory of ``path`` for a "development egg". However, other uses are possible for custom purposes. ``EggMetadata(zipimporter)`` Create an ``IResourceProvider`` for a zipfile-based distribution. The - `zipimporter` should be a ``zipimport.zipimporter`` instance, and may + ``zipimporter`` should be a ``zipimport.zipimporter`` instance, and may represent a "basket" (a zipfile containing multiple ".egg" subdirectories) a specific egg *within* a basket, or a zipfile egg (where the zipfile itself is a ".egg"). It can also be a combination, such as a zipfile egg @@ -1511,52 +1542,24 @@ Parsing Utilities ----------------- ``parse_version(version)`` - Parse a project's version string, returning a value that can be used to - compare versions by chronological order. Semantically, the format is a - rough cross between distutils' ``StrictVersion`` and ``LooseVersion`` - classes; if you give it versions that would work with ``StrictVersion``, - then they will compare the same way. Otherwise, comparisons are more like - a "smarter" form of ``LooseVersion``. It is *possible* to create - pathological version coding schemes that will fool this parser, but they - should be very rare in practice. - - The returned value will be a tuple of strings. Numeric portions of the - version are padded to 8 digits so they will compare numerically, but - without relying on how numbers compare relative to strings. Dots are - dropped, but dashes are retained. Trailing zeros between alpha segments - or dashes are suppressed, so that e.g. "2.4.0" is considered the same as - "2.4". Alphanumeric parts are lower-cased. - - The algorithm assumes that strings like "-" and any alpha string that - alphabetically follows "final" represents a "patch level". So, "2.4-1" - is assumed to be a branch or patch of "2.4", and therefore "2.4.1" is - considered newer than "2.4-1", which in turn is newer than "2.4". - - Strings like "a", "b", "c", "alpha", "beta", "candidate" and so on (that - come before "final" alphabetically) are assumed to be pre-release versions, - so that the version "2.4" is considered newer than "2.4a1". Any "-" - characters preceding a pre-release indicator are removed. (In versions of - setuptools prior to 0.6a9, "-" characters were not removed, leading to the - unintuitive result that "0.2-rc1" was considered a newer version than - "0.2".) - - Finally, to handle miscellaneous cases, the strings "pre", "preview", and - "rc" are treated as if they were "c", i.e. as though they were release - candidates, and therefore are not as new as a version string that does not - contain them. And the string "dev" is treated as if it were an "@" sign; - that is, a version coming before even "a" or "alpha". + Parsed a project's version string as defined by PEP 440. The returned + value will be an object that represents the version. These objects may + be compared to each other and sorted. The sorting algorithm is as defined + by PEP 440 with the addition that any version which is not a valid PEP 440 + version will be considered less than any valid PEP 440 version and the + invalid versions will continue sorting using the original algorithm. .. _yield_lines(): ``yield_lines(strs)`` - Yield non-empty/non-comment lines from a string/unicode or a possibly- - nested sequence thereof. If `strs` is an instance of ``basestring``, it - is split into lines, and each non-blank, non-comment line is yielded after - stripping leading and trailing whitespace. (Lines whose first non-blank - character is ``#`` are considered comment lines.) - - If `strs` is not an instance of ``basestring``, it is iterated over, and - each item is passed recursively to ``yield_lines()``, so that an arbitarily + Yield non-empty/non-comment lines from a string/unicode or a + possibly-nested sequence thereof. If ``strs`` is an instance of + ``basestring``, it is split into lines, and each non-blank, non-comment + line is yielded after stripping leading and trailing whitespace. (Lines + whose first non-blank character is ``#`` are considered comment lines.) + + If ``strs`` is not an instance of ``basestring``, it is iterated over, and + each item is passed recursively to ``yield_lines()``, so that an arbitrarily nested sequence of strings, or sequences of sequences of strings can be flattened out to the lines contained therein. So for example, passing a file object or a list of strings to ``yield_lines`` will both work. @@ -1594,14 +1597,17 @@ Parsing Utilities ``Requirement`` string, as a distribution name, or a PyPI project name. All non-alphanumeric runs are condensed to single "-" characters, such that a name like "The $$$ Tree" becomes "The-Tree". Note that if you are - generating a filename from this value you should replace the "-" characters - with underscores ("_") because setuptools and the distutils + generating a filename from this value you should combine it with a call to + ``to_filename()`` so all dashes ("-") are replaced by underscores ("_"). + See ``to_filename()``. ``safe_version(version)`` - Similar to ``safe_name()`` except that spaces in the input become dots, and - dots are allowed to exist in the output. As with ``safe_name()``, if you - are generating a filename from this you should replace any "-" characters - in the output with underscores. + This will return the normalized form of any PEP 440 version. If the version + string is not PEP 440 compatible, this function behaves similar to + ``safe_name()`` except that spaces in the input become dots, and dots are + allowed to exist in the output. As with ``safe_name()``, if you are + generating a filename from this you should replace any "-" characters in + the output with underscores. ``safe_extra(extra)`` Return a "safe" form of an extra's name, suitable for use in a requirement @@ -1621,7 +1627,7 @@ Platform Utilities ``get_build_platform()`` Return this platform's identifier string. For Windows, the return value - is ``"win32"``, and for Mac OS X it is a string of the form + is ``"win32"``, and for macOS it is a string of the form ``"macosx-10.4-ppc"``. All other platforms return the same uname-based string that the ``distutils.util.get_platform()`` function returns. This string is the minimum platform version required by distributions built @@ -1636,15 +1642,15 @@ Platform Utilities ``compatible_platforms()`` function. ``compatible_platforms(provided, required)`` - Return true if a distribution built on the `provided` platform may be used - on the `required` platform. If either platform value is ``None``, it is + Return true if a distribution built on the ``provided`` platform may be used + on the ``required`` platform. If either platform value is ``None``, it is considered a wildcard, and the platforms are therefore compatible. Likewise, if the platform strings are equal, they're also considered compatible, and ``True`` is returned. Currently, the only non-equal - platform strings that are considered compatible are Mac OS X platform + platform strings that are considered compatible are macOS platform strings with the same hardware type (e.g. ``ppc``) and major version - (e.g. ``10``) with the `provided` platform's minor version being less than - or equal to the `required` platform's minor version. + (e.g. ``10``) with the ``provided`` platform's minor version being less than + or equal to the ``required`` platform's minor version. ``get_default_cache()`` Determine the default cache location for extracting resources from zipped @@ -1659,34 +1665,22 @@ PEP 302 Utilities ----------------- ``get_importer(path_item)`` - Retrieve a PEP 302 "importer" for the given path item (which need not - actually be on ``sys.path``). This routine simulates the PEP 302 protocol - for obtaining an "importer" object. It first checks for an importer for - the path item in ``sys.path_importer_cache``, and if not found it calls - each of the ``sys.path_hooks`` and caches the result if a good importer is - found. If no importer is found, this routine returns an ``ImpWrapper`` - instance that wraps the builtin import machinery as a PEP 302-compliant - "importer" object. This ``ImpWrapper`` is *not* cached; instead a new - instance is returned each time. - - (Note: When run under Python 2.5, this function is simply an alias for - ``pkgutil.get_importer()``, and instead of ``pkg_resources.ImpWrapper`` - instances, it may return ``pkgutil.ImpImporter`` instances.) + A deprecated alias for ``pkgutil.get_importer()`` File/Path Utilities ------------------- ``ensure_directory(path)`` - Ensure that the parent directory (``os.path.dirname``) of `path` actually + Ensure that the parent directory (``os.path.dirname``) of ``path`` actually exists, using ``os.makedirs()`` if necessary. ``normalize_path(path)`` - Return a "normalized" version of `path`, such that two paths represent + Return a "normalized" version of ``path``, such that two paths represent the same filesystem location if they have equal ``normalized_path()`` values. Specifically, this is a shortcut for calling ``os.path.realpath`` - and ``os.path.normcase`` on `path`. Unfortunately, on certain platforms - (notably Cygwin and Mac OS X) the ``normcase`` function does not accurately + and ``os.path.normcase`` on ``path``. Unfortunately, on certain platforms + (notably Cygwin and macOS) the ``normcase`` function does not accurately reflect the platform's case-sensitivity, so there is always the possibility of two apparently-different paths being equal on such platforms. @@ -1708,7 +1702,7 @@ History * Fix cache dir defaults on Windows when multiple environment vars are needed to construct a path. - + 0.6c4 * Fix "dev" versions being considered newer than release candidates. @@ -1855,9 +1849,9 @@ History because it isn't necessarily a filesystem path (and hasn't been for some time now). The ``location`` of ``Distribution`` objects in the filesystem should always be normalized using ``pkg_resources.normalize_path()``; all - of the setuptools and EasyInstall code that generates distributions from - the filesystem (including ``Distribution.from_filename()``) ensure this - invariant, but if you use a more generic API like ``Distribution()`` or + of the setuptools' code that generates distributions from the filesystem + (including ``Distribution.from_filename()``) ensure this invariant, but if + you use a more generic API like ``Distribution()`` or ``Distribution.from_location()`` you should take care that you don't create a distribution with an un-normalized filesystem path. @@ -1893,8 +1887,8 @@ History * Fixed a bug in resource extraction from nested packages in a zipped egg. 0.5a12 - * Updated extraction/cache mechanism for zipped resources to avoid inter- - process and inter-thread races during extraction. The default cache + * Updated extraction/cache mechanism for zipped resources to avoid + inter-process and inter-thread races during extraction. The default cache location can now be set via the ``PYTHON_EGGS_CACHE`` environment variable, and the default Windows cache is now a ``Python-Eggs`` subdirectory of the current user's "Application Data" directory, if the ``PYTHON_EGGS_CACHE`` @@ -1951,4 +1945,3 @@ History 0.3a1 * Initial release. - diff --git a/docs/python 2 sunset.rst b/docs/python 2 sunset.rst new file mode 100644 index 0000000000..225d655153 --- /dev/null +++ b/docs/python 2 sunset.rst @@ -0,0 +1,69 @@ +:orphan: + +Python 2 Sunset +=============== + +Since January 2020 and the release of Setuptools 45, Python 2 is no longer +supported by the most current release (`discussion +`_). Setuptools as a project +continues to support Python 2 with bugfixes and important features on +Setuptools 44.x. + +By design, most users will be unaffected by this change. That's because +Setuptools 45 declares its supported Python versions to exclude Python 2.7, +and installers such as pip 9 or later will honor this declaration and prevent +installation of Setuptools 45 or later in Python 2 environments. + +Users that do import any portion of Setuptools 45 or later on Python 2 are +directed to this documentation to provide guidance on how to work around the +issues. + +Workarounds +----------- + +The best recommendation is to avoid Python 2 and move to Python 3 where +possible. This project acknowledges that not all environments can drop Python +2 support, so provides other options. + +In less common scenarios, later versions of Setuptools can be installed on +unsupported Python versions. In these environments, the installer is advised +to first install ``setuptools<45`` to "pin Setuptools" to a compatible +version. + +- When using older versions of pip (before 9.0), the ``Requires-Python`` + directive is not honored and invalid versions can be installed. Users are + advised first to upgrade pip and retry or to pin Setuptools. Use ``pip + --version`` to determine the version of pip. +- When using ``easy_install``, ``Requires-Python`` is not honored and later + versions can be installed. In this case, users are advised to pin + Setuptools. This applies to ``setup.py install`` invocations as well, as + they use Setuptools under the hood. + +It's still not working +---------------------- + +If after trying the above steps, the Python environment still has incompatible +versions of Setuptools installed, here are some things to try. + +1. Uninstall and reinstall Setuptools. Run ``pip uninstall -y setuptools`` for + the relevant environment. Repeat until there is no Setuptools installed. + Then ``pip install setuptools``. +2. If possible, attempt to replicate the problem in a second environment + (virtual machine, friend's computer, etc). If the issue is isolated to just + one unique environment, first determine what is different about those + environments (or reinstall/reset the failing one to defaults). +3. End users who are not themselves the maintainers for the package they are + trying to install should contact the support channels for the relevant + application. Please be considerate of those projects by searching for + existing issues and following the latest guidance before reaching out for + support. When filing an issue, be sure to give as much detail as possible + to help the maintainers understand what factors led to the issue after + following their recommended guidance. +4. Reach out to your local support groups. There's a good chance someone + nearby has the expertise and willingness to help. +5. If all else fails, `file this template + `_ + with Setuptools. Please complete the whole template, providing as much + detail about what factors led to the issue. Setuptools maintainers will + summarily close tickets filed without any meaningful detail or engagement + with the issue. diff --git a/docs/references/keywords.rst b/docs/references/keywords.rst new file mode 100644 index 0000000000..41d30c33d4 --- /dev/null +++ b/docs/references/keywords.rst @@ -0,0 +1,529 @@ +======== +Keywords +======== + +The following are keywords ``setuptools.setup()`` accepts. +They allow configuring the build process for a Python distribution or adding +metadata via a ``setup.py`` script placed at the root of your project. +All of them are optional; you do not have to supply them unless you need the +associated ``setuptools`` feature. + +Metadata and configuration supplied via ``setup()`` is complementary to (and +may be overwritten by) the information present in ``setup.cfg`` and ``pyproject.toml``. +Some important metadata, such as ``name`` and ``version``, may assume +a default *degenerate* value if not specified. + +Users are strongly encouraged to use a declarative config either via +:doc:`setup.cfg ` or :doc:`pyproject.toml +` and only rely on ``setup.py`` if they need to +tap into special behaviour that requires scripting (such as building C +extensions). + +.. note:: + When using declarative configs via ``pyproject.toml`` + with ``setuptools<64.0.0``, users can still keep a very simple ``setup.py`` + just to ensure editable installs are supported, for example:: + + from setuptools import setup + + setup() + + Versions of ``setuptools`` ``>=64.0.0`` do not require this extra minimal + ``setup.py`` file. + +.. _keyword/name: + +``name`` + A string specifying the name of the package. + +.. _keyword/version: + +``version`` + A string specifying the version number of the package. + +.. _keyword/description: + +``description`` + A string describing the package in a single line. + +.. _keyword/long_description: + +``long_description`` + A string providing a longer description of the package. + +.. _keyword/long_description_content_type: + +``long_description_content_type`` + A string specifying the content type is used for the ``long_description`` + (e.g. ``text/markdown``) + +.. _keyword/author: + +``author`` + A string specifying the author of the package. + +.. _keyword/author_email: + +``author_email`` + A string specifying the email address of the package author. + +.. _keyword/maintainer: + +``maintainer`` + A string specifying the name of the current maintainer, if different from + the author. Note that if the maintainer is provided, setuptools will use it + as the author in ``PKG-INFO``. + +.. _keyword/maintainer_email: + +``maintainer_email`` + A string specifying the email address of the current maintainer, if + different from the author. + +.. _keyword/url: + +``url`` + A string specifying the URL for the package homepage. + +.. _keyword/download_url: + +``download_url`` + A string specifying the URL to download the package. + +.. _keyword/packages: + +``packages`` + A list of strings specifying the packages that setuptools will manipulate. + +.. _keyword/py_modules: + +``py_modules`` + A list of strings specifying the modules that setuptools will manipulate. + +.. _keyword/scripts: + +``scripts`` + A list of strings specifying the standalone script files to be built and + installed. + +.. _keyword/ext_package: + +``ext_package`` + A string specifying the base package name for the extensions provided by + this package. + +.. _keyword/ext_modules: + +``ext_modules`` + A list of instances of ``setuptools.Extension`` providing the list of + Python extensions to be built. + +.. _keyword/classifiers: + +``classifiers`` + A list of strings describing the categories for the package. + +.. _keyword/distclass: + +``distclass`` + A subclass of ``Distribution`` to use. + +.. _keyword/script_name: + +``script_name`` + A string specifying the name of the setup.py script -- defaults to + ``sys.argv[0]`` + +.. _keyword/script_args: + +``script_args`` + A list of strings defining the arguments to supply to the setup script. + +.. _keyword/options: + +``options`` + A dictionary providing the default options for the setup script. + +.. _keyword/license: + +``license`` + A string specifying the license of the package. + +.. _keyword/license_file: + +``license_file`` + .. warning:: + ``license_file`` is deprecated. Use ``license_files`` instead. + +.. _keyword/license_files: + +``license_files`` + A list of glob patterns for license related files that should be included. + If neither ``license_file`` nor ``license_files`` is specified, this option + defaults to ``LICEN[CS]E*``, ``COPYING*``, ``NOTICE*``, and ``AUTHORS*``. + +.. _keyword/keywords: + +``keywords`` + A list of strings or a comma-separated string providing descriptive + meta-data. See: :ref:`Core Metadata Specifications`. + +.. _keyword/platforms: + +``platforms`` + A list of strings or comma-separated string. + +.. _keyword/cmdclass: + +``cmdclass`` + A dictionary providing a mapping of command names to ``Command`` + subclasses. + +.. _keyword/data_files: + +``data_files`` + .. attention:: + **DISCOURAGED** - This is an advanced feature and it is + *not intended to work with absolute paths*. + All files listed in ``data_files`` will be installed in paths relative + to a directory decided by the package installer (e.g. `pip`). + This usually results in nesting under a virtual environment. + We **STRONGLY ADVISE AGAINST** using this setting for things like + application launchers, desktop files or anything that requires + system-wide installation [#manpages]_, unless you have extensive + experience in Python packaging and have carefully considered all the + drawbacks, limitations and problems of this method. + Also note that this feature is provided *as is* with no plans of + further changes. + + .. tip:: + See :doc:`/userguide/datafiles` for an alternative method that uses the + package directory itself and works well with :mod:`importlib.resources`, + or consider using libraries such as :pypi:`platformdirs` for creating + and managing files at runtime (i.e., **not** during the installation). + + A sequence of ``(directory, files)`` pairs specifying the data files to install + (``directory`` is a :class:`str`, ``files`` is a sequence of :class:`str`). + Each ``(directory, files)`` pair in the sequence specifies the installation directory + and the files to install there. + +.. _discussion in Python discourse: https://discuss.python.org/t/should-there-be-a-new-standard-for-installing-arbitrary-data-files/7853/63 + +.. _keyword/package_dir: + +``package_dir`` + A dictionary that maps package names (as they will be + imported by the end-users) into directory paths (that actually exist in the + project's source tree). This configuration has two main purposes: + + 1. To effectively "rename" paths when building your package. + For example, ``package_dir={"mypkg": "dir1/dir2/code_for_mypkg"}`` + will instruct setuptools to copy the ``dir1/dir2/code_for_mypkg/...`` files + as ``mypkg/...`` when building the final :term:`wheel distribution `. + + .. attention:: + While it is *possible* to specify arbitrary mappings, developers are + **STRONGLY ADVISED AGAINST** that. They should try as much as possible + to keep the directory names and hierarchy identical to the way they will + appear in the final wheel, only deviating when absolutely necessary. + + 2. To indicate that the relevant code is entirely contained inside + a specific directory (instead of directly placed under the project's root). + In this case, a special key is required (the empty string, ``""``), + for example: ``package_dir={"": ""}``. + All the directories inside the container directory will be copied + directly into the final :term:`wheel distribution `, but the + container directory itself will not. + + This practice is very common in the community to help separate the + package implementation from auxiliary files (e.g. CI configuration files), + and is referred to as :ref:`src-layout`, because the container + directory is commonly named ``src``. + + All paths in ``package_dir`` must be relative to the project root directory + and use a forward slash (``/``) as path separator regardless of the + operating system. + + .. tip:: + When using :doc:`package discovery ` + together with :doc:`setup.cfg ` or + :doc:`pyproject.toml `, it is very likely + that you don't need to specify a value for ``package_dir``. Please have + a look at the definitions of :ref:`src-layout` and :ref:`flat-layout` to + learn common practices on how to design a project's directory structure + and minimise the amount of configuration that is needed. + +.. _keyword/requires: + +``requires`` + .. warning:: + ``requires`` is superseded by ``install_requires`` and should not be used + anymore. + +.. _keyword/obsoletes: + +``obsoletes`` + .. warning:: + ``obsoletes`` is currently ignored by ``pip``. + + List of strings describing packages which this package renders obsolete, + meaning that the two projects should not be installed at the same time. + + Version declarations can be supplied. Version numbers must be in the format + specified in Version specifiers (e.g. ``foo (<3.0)``). + + This field may be followed by an environment marker after a semicolon (e.g. + ``foo; os_name == "posix"``) + + The most common use of this field will be in case a project name changes, + e.g. Gorgon 2.3 gets subsumed into Torqued Python 1.0. When you install + Torqued Python, the Gorgon distribution should be removed. + +.. _keyword/provides: + +``provides`` + .. warning:: + ``provides`` is currently ignored by ``pip``. + + List of strings describing package- and virtual package names contained + within this package. + + A package may provide additional names, e.g. to indicate that multiple + projects have been bundled together. For instance, source distributions of + the ZODB project have historically included the transaction project, which + is now available as a separate distribution. Installing such a source + distribution satisfies requirements for both ZODB and transaction. + + A package may also provide a “virtual” project name, which does not + correspond to any separately-distributed project: such a name might be used + to indicate an abstract capability which could be supplied by one of + multiple projects. E.g., multiple projects might supply RDBMS bindings for + use by a given ORM: each project might declare that it provides + ORM-bindings, allowing other projects to depend only on having at most one + of them installed. + + A version declaration may be supplied and must follow the rules described in + Version specifiers. The distribution’s version number will be implied if + none is specified (e.g. ``foo (<3.0)``). + + Each package may be followed by an environment marker after a semicolon + (e.g. ``foo; os_name == "posix"``). + +.. _keyword/include_package_data: + +``include_package_data`` + If set to ``True``, this tells ``setuptools`` to automatically include any + data files it finds inside your package directories that are specified by + your ``MANIFEST.in`` file. For more information, see the section on + :ref:`Including Data Files`. + +.. _keyword/exclude_package_data: + +``exclude_package_data`` + A dictionary mapping package names to lists of glob patterns that should + be *excluded* from your package directories. You can use this to trim back + any excess files included by ``include_package_data``. For a complete + description and examples, see the section on :ref:`Including Data Files`. + +.. _keyword/package_data: + +``package_data`` + A dictionary mapping package names to lists of glob patterns. For a + complete description and examples, see the section on :ref:`Including Data + Files`. You do not need to use this option if you are using + ``include_package_data``, unless you need to add e.g. files that are + generated by your setup script and build process. (And are therefore not + in source control or are files that you don't want to include in your + source distribution.) + +.. _keyword/zip_safe: + +``zip_safe`` + A boolean (True or False) flag specifying whether the project can be + safely installed and run from a zip file. If this argument is not + supplied, the ``bdist_egg`` command will have to analyze all of your + project's contents for possible problems each time it builds an egg. + +.. _keyword/install_requires: + +``install_requires`` + A string or list of strings specifying what other distributions need to + be installed when this one is. See the section on :ref:`Declaring + Dependencies` for details and examples of the format of this argument. + +.. _keyword/entry_points: + +``entry_points`` + A dictionary mapping entry point group names to strings or lists of strings + defining the entry points. Entry points are used to support dynamic + discovery of services or plugins provided by a project. See :ref:`Dynamic + Discovery of Services and Plugins` for details and examples of the format + of this argument. In addition, this keyword is used to support + :ref:`Automatic Script Creation `. + +.. _keyword/extras_require: + +``extras_require`` + A dictionary mapping names of "extras" (optional features of your project) + to strings or lists of strings specifying what other distributions must be + installed to support those features. See the section on :ref:`Declaring + Dependencies` for details and examples of the format of this argument. + +.. _keyword/python_requires: + +``python_requires`` + A string corresponding to a version specifier (as defined in PEP 440) for + the Python version, used to specify the Requires-Python defined in PEP 345. + +.. _keyword/setup_requires: + +``setup_requires`` + .. warning:: + Using ``setup_requires`` is discouraged in favor of :pep:`518`. + + A string or list of strings specifying what other distributions need to + be present in order for the *setup script* to run. ``setuptools`` will + attempt to obtain these before processing the + rest of the setup script or commands. This argument is needed if you + are using distutils extensions as part of your build process; for + example, extensions that process setup() arguments and turn them into + EGG-INFO metadata files. + + (Note: projects listed in ``setup_requires`` will NOT be automatically + installed on the system where the setup script is being run. They are + simply downloaded to the ./.eggs directory if they're not locally available + already. If you want them to be installed, as well as being available + when the setup script is run, you should add them to ``install_requires`` + **and** ``setup_requires``.) + +.. _keyword/dependency_links: + +``dependency_links`` + .. warning:: + ``dependency_links`` is deprecated. It is not supported anymore by pip. + + A list of strings naming URLs to be searched when satisfying dependencies. + These links will be used if needed to install packages specified by + ``setup_requires`` or ``tests_require``. They will also be written into + the egg's metadata for use during install by tools that support them. + +.. _keyword/namespace_packages: + +``namespace_packages`` + .. warning:: + The ``namespace_packages`` implementation relies on ``pkg_resources``. + However, ``pkg_resources`` has some undesirable behaviours, and + Setuptools intends to obviate its usage in the future. Therefore, + ``namespace_packages`` was deprecated in favor of native/implicit + namespaces (:pep:`420`). Check :doc:`the Python Packaging User Guide + ` for more information. + + A list of strings naming the project's "namespace packages". A namespace + package is a package that may be split across multiple project + distributions. For example, Zope 3's ``zope`` package is a namespace + package, because subpackages like ``zope.interface`` and ``zope.publisher`` + may be distributed separately. The egg runtime system can automatically + merge such subpackages into a single parent package at runtime, as long + as you declare them in each project that contains any subpackages of the + namespace package, and as long as the namespace package's ``__init__.py`` + does not contain any code other than a namespace declaration. See the + section on :ref:`Namespace Packages` for more information. + +.. _keyword/test_suite: + +``test_suite`` + A string naming a ``unittest.TestCase`` subclass (or a package or module + containing one or more of them, or a method of such a subclass), or naming + a function that can be called with no arguments and returns a + ``unittest.TestSuite``. If the named suite is a module, and the module + has an ``additional_tests()`` function, it is called and the results are + added to the tests to be run. If the named suite is a package, any + submodules and subpackages are recursively added to the overall test suite. + + Specifying this argument enables use of the :ref:`test ` command to run the + specified test suite, e.g. via ``setup.py test``. See the section on the + :ref:`test ` command below for more details. + + .. warning:: + .. deprecated:: 41.5.0 + The test command will be removed in a future version of ``setuptools``, + alongside any test configuration parameter. + +.. _keyword/tests_require: + +``tests_require`` + If your project's tests need one or more additional packages besides those + needed to install it, you can use this option to specify them. It should + be a string or list of strings specifying what other distributions need to + be present for the package's tests to run. When you run the ``test`` + command, ``setuptools`` will attempt to obtain these. + Note that these required projects will *not* be installed on + the system where the tests are run, but only downloaded to the project's setup + directory if they're not already installed locally. + + .. warning:: + .. deprecated:: 41.5.0 + The test command will be removed in a future version of ``setuptools``, + alongside any test configuration parameter. + +.. _test_loader: + +.. _keyword/test_loader: + +``test_loader`` + If you would like to use a different way of finding tests to run than what + setuptools normally uses, you can specify a module name and class name in + this argument. The named class must be instantiable with no arguments, and + its instances must support the ``loadTestsFromNames()`` method as defined + in the Python ``unittest`` module's ``TestLoader`` class. Setuptools will + pass only one test "name" in the ``names`` argument: the value supplied for + the ``test_suite`` argument. The loader you specify may interpret this + string in any way it likes, as there are no restrictions on what may be + contained in a ``test_suite`` string. + + The module name and class name must be separated by a ``:``. The default + value of this argument is ``"setuptools.command.test:ScanningLoader"``. If + you want to use the default ``unittest`` behavior, you can specify + ``"unittest:TestLoader"`` as your ``test_loader`` argument instead. This + will prevent automatic scanning of submodules and subpackages. + + The module and class you specify here may be contained in another package, + as long as you use the ``tests_require`` option to ensure that the package + containing the loader class is available when the ``test`` command is run. + + .. warning:: + .. deprecated:: 41.5.0 + The test command will be removed in a future version of ``setuptools``, + alongside any test configuration parameter. + +.. _keyword/eager_resources: + +``eager_resources`` + A list of strings naming resources that should be extracted together, if + any of them is needed, or if any C extensions included in the project are + imported. This argument is only useful if the project will be installed as + a zipfile, and there is a need to have all of the listed resources be + extracted to the filesystem *as a unit*. Resources listed here + should be '/'-separated paths, relative to the source root, so to list a + resource ``foo.png`` in package ``bar.baz``, you would include the string + ``bar/baz/foo.png`` in this argument. + + If you only need to obtain resources one at a time, or you don't have any C + extensions that access other files in the project (such as data files or + shared libraries), you probably do NOT need this argument and shouldn't + mess with it. For more details on how this argument works, see the section + below on :ref:`Automatic Resource Extraction`. + +.. _keyword/project_urls: + +``project_urls`` + An arbitrary map of URL names to hyperlinks, allowing more extensible + documentation of where various resources can be found than the simple + ``url`` and ``download_url`` options provide. + + +.. [#manpages] It is common for developers to attempt using ``data_files`` for manpages. + Please note however that depending on the installation directory, this will + not work out of the box - often the final user is required to change the + ``MANPATH`` environment variable. + See the `discussion in Python discourse`_ for more details. diff --git a/docs/roadmap.rst b/docs/roadmap.rst new file mode 100644 index 0000000000..147288f303 --- /dev/null +++ b/docs/roadmap.rst @@ -0,0 +1,7 @@ +======= +Roadmap +======= + +Setuptools maintains a series of `milestones +`_ to track +a roadmap of large-scale goals. diff --git a/docs/setuptools.rst b/docs/setuptools.rst new file mode 100644 index 0000000000..ef70fe61cc --- /dev/null +++ b/docs/setuptools.rst @@ -0,0 +1,223 @@ +================================================== +Building and Distributing Packages with Setuptools +================================================== + +``Setuptools`` is a collection of enhancements to the Python ``distutils`` +that allow developers to more easily build and +distribute Python packages, especially ones that have dependencies on other +packages. + +Packages built and distributed using ``setuptools`` look to the user like +ordinary Python packages based on the ``distutils``. + +Feature Highlights: + +* Create `Python Eggs `_ - + a single-file importable distribution format + +* Enhanced support for accessing data files hosted in zipped packages. + +* Automatically include all packages in your source tree, without listing them + individually in setup.py + +* Automatically include all relevant files in your source distributions, + without needing to create a :ref:`MANIFEST.in ` file, + and without having to force regeneration of the ``MANIFEST`` file when your + source tree changes [#manifest]_. + +* Automatically generate wrapper scripts or Windows (console and GUI) .exe + files for any number of "main" functions in your project. (Note: this is not + a py2exe replacement; the .exe files rely on the local Python installation.) + +* Transparent Cython support, so that your setup.py can list ``.pyx`` files and + still work even when the end-user doesn't have Cython installed (as long as + you include the Cython-generated C in your source distribution) + +* Command aliases - create project-specific, per-user, or site-wide shortcut + names for commonly used commands and options + +* Deploy your project in "development mode", such that it's available on + ``sys.path``, yet can still be edited directly from its source checkout. + +* Easily extend the distutils with new commands or ``setup()`` arguments, and + distribute/reuse your extensions for multiple projects, without copying code. + +* Create extensible applications and frameworks that automatically discover + extensions, using simple "entry points" declared in a project's setup script. + +* Full support for PEP 420 via ``find_namespace_packages()``, which is also backwards + compatible to the existing ``find_packages()`` for Python >= 3.3. + +----------------- +Developer's Guide +----------------- + +The developer's guide has been updated. See the :doc:`most recent version `. + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +TRANSITIONAL NOTE +~~~~~~~~~~~~~~~~~ + +Setuptools automatically calls ``declare_namespace()`` for you at runtime, +but future versions may *not*. This is because the automatic declaration +feature has some negative side effects, such as needing to import all namespace +packages during the initialization of the ``pkg_resources`` runtime, and also +the need for ``pkg_resources`` to be explicitly imported before any namespace +packages work at all. In some future releases, you'll be responsible +for including your own declaration lines, and the automatic declaration feature +will be dropped to get rid of the negative side effects. + +During the remainder of the current development cycle, therefore, setuptools +will warn you about missing ``declare_namespace()`` calls in your +``__init__.py`` files, and you should correct these as soon as possible +before the compatibility support is removed. +Namespace packages without declaration lines will not work +correctly once a user has upgraded to a later version, so it's important that +you make this change now in order to avoid having your code break in the field. +Our apologies for the inconvenience, and thank you for your patience. + + + + + + + + + + + + + + + + + +setup.cfg-only projects +======================= + +.. versionadded:: 40.9.0 + +If ``setup.py`` is missing from the project directory when a :pep:`517` +build is invoked, ``setuptools`` emulates a dummy ``setup.py`` file containing +only a ``setuptools.setup()`` call. + +.. note:: + + :pep:`517` doesn't support editable installs so this is currently + incompatible with ``pip install -e .``. + +This means that you can have a Python project with all build configuration +specified in ``setup.cfg``, without a ``setup.py`` file, if you **can rely +on** your project always being built by a :pep:`517`/:pep:`518` compatible +frontend. + +To use this feature: + +* Specify build requirements and :pep:`517` build backend in + ``pyproject.toml``. + For example: + + .. code-block:: toml + + [build-system] + requires = [ + "setuptools >= 40.9.0", + ] + build-backend = "setuptools.build_meta" + +* Use a :pep:`517` compatible build frontend, such as ``pip >= 19`` or ``build``. + + .. warning:: + + As :pep:`517` is new, support is not universal, and frontends that + do support it may still have bugs. For compatibility, you may want to + put a ``setup.py`` file containing only a ``setuptools.setup()`` + invocation. + + +Configuration API +================= + +Some automation tools may wish to access data from a configuration file. + +``Setuptools`` exposes a ``read_configuration()`` function for +parsing ``metadata`` and ``options`` sections into a dictionary. + + +.. code-block:: python + + from setuptools.config import read_configuration + + conf_dict = read_configuration("/home/user/dev/package/setup.cfg") + + +By default, ``read_configuration()`` will read only the file provided +in the first argument. To include values from other configuration files +which could be in various places, set the ``find_others`` keyword argument +to ``True``. + +If you have only a configuration file but not the whole package, you can still +try to get data out of it with the help of the ``ignore_option_errors`` keyword +argument. When it is set to ``True``, all options with errors possibly produced +by directives, such as ``attr:`` and others, will be silently ignored. +As a consequence, the resulting dictionary will include no such options. + + + + + + + + + + + +Forum and Bug Tracker +===================== + +Please use `GitHub Discussions`_ for questions and discussion about +setuptools, and the `setuptools bug tracker`_ ONLY for issues you have +confirmed via the forum are actual bugs, and which you have reduced to a minimal +set of steps to reproduce. + +.. _GitHub Discussions: https://github.com/pypa/setuptools/discussions +.. _setuptools bug tracker: https://github.com/pypa/setuptools/ + + +---- + + +.. [#manifest] The default behaviour for ``setuptools`` will work well for pure + Python packages, or packages with simple C extensions (that don't require + any special C header). See :ref:`Controlling files in the distribution` and + :doc:`userguide/datafiles` for more information about complex scenarios, if + you want to include other types of files. diff --git a/docs/setuptools.txt b/docs/setuptools.txt deleted file mode 100644 index 7de0ab086a..0000000000 --- a/docs/setuptools.txt +++ /dev/null @@ -1,3115 +0,0 @@ -====================================================== -Building and Distributing Packages with ``setuptools`` -====================================================== - -``setuptools`` is a collection of enhancements to the Python ``distutils`` -(for Python 2.3.5 and up on most platforms; 64-bit platforms require a minimum -of Python 2.4) that allow you to more easily build and distribute Python -packages, especially ones that have dependencies on other packages. - -Packages built and distributed using ``setuptools`` look to the user like -ordinary Python packages based on the ``distutils``. Your users don't need to -install or even know about setuptools in order to use them, and you don't -have to include the entire setuptools package in your distributions. By -including just a single `bootstrap module`_ (an 8K .py file), your package will -automatically download and install ``setuptools`` if the user is building your -package from source and doesn't have a suitable version already installed. - -.. _bootstrap module: http://nightly.ziade.org/distribute_setup.py - -Feature Highlights: - -* Automatically find/download/install/upgrade dependencies at build time using - the `EasyInstall tool `_, - which supports downloading via HTTP, FTP, Subversion, and SourceForge, and - automatically scans web pages linked from PyPI to find download links. (It's - the closest thing to CPAN currently available for Python.) - -* Create `Python Eggs `_ - - a single-file importable distribution format - -* Include data files inside your package directories, where your code can - actually use them. (Python 2.4 distutils also supports this feature, but - setuptools provides the feature for Python 2.3 packages also, and supports - accessing data files in zipped packages too.) - -* Automatically include all packages in your source tree, without listing them - individually in setup.py - -* Automatically include all relevant files in your source distributions, - without needing to create a ``MANIFEST.in`` file, and without having to force - regeneration of the ``MANIFEST`` file when your source tree changes. - -* Automatically generate wrapper scripts or Windows (console and GUI) .exe - files for any number of "main" functions in your project. (Note: this is not - a py2exe replacement; the .exe files rely on the local Python installation.) - -* Transparent Pyrex support, so that your setup.py can list ``.pyx`` files and - still work even when the end-user doesn't have Pyrex installed (as long as - you include the Pyrex-generated C in your source distribution) - -* Command aliases - create project-specific, per-user, or site-wide shortcut - names for commonly used commands and options - -* PyPI upload support - upload your source distributions and eggs to PyPI - -* Deploy your project in "development mode", such that it's available on - ``sys.path``, yet can still be edited directly from its source checkout. - -* Easily extend the distutils with new commands or ``setup()`` arguments, and - distribute/reuse your extensions for multiple projects, without copying code. - -* Create extensible applications and frameworks that automatically discover - extensions, using simple "entry points" declared in a project's setup script. - -In addition to the PyPI downloads, the development version of ``setuptools`` -is available from the `Python SVN sandbox`_, and in-development versions of the -`0.6 branch`_ are available as well. - -.. _0.6 branch: http://svn.python.org/projects/sandbox/branches/setuptools-0.6/#egg=setuptools-dev06 - -.. _Python SVN sandbox: http://svn.python.org/projects/sandbox/trunk/setuptools/#egg=setuptools-dev - -.. contents:: **Table of Contents** - -.. _distribute_setup.py: `bootstrap module`_ - - ------------------ -Developer's Guide ------------------ - - -Installing ``setuptools`` -========================= - -Please follow the `EasyInstall Installation Instructions`_ to install the -current stable version of setuptools. In particular, be sure to read the -section on `Custom Installation Locations`_ if you are installing anywhere -other than Python's ``site-packages`` directory. - -.. _EasyInstall Installation Instructions: http://peak.telecommunity.com/DevCenter/EasyInstall#installation-instructions - -.. _Custom Installation Locations: http://peak.telecommunity.com/DevCenter/EasyInstall#custom-installation-locations - -If you want the current in-development version of setuptools, you should first -install a stable version, and then run:: - - distribute_setup.py setuptools==dev - -This will download and install the latest development (i.e. unstable) version -of setuptools from the Python Subversion sandbox. - - -Basic Use -========= - -For basic use of setuptools, just import things from setuptools instead of -the distutils. Here's a minimal setup script using setuptools:: - - from setuptools import setup, find_packages - setup( - name = "HelloWorld", - version = "0.1", - packages = find_packages(), - ) - -As you can see, it doesn't take much to use setuptools in a project. -Just by doing the above, this project will be able to produce eggs, upload to -PyPI, and automatically include all packages in the directory where the -setup.py lives. See the `Command Reference`_ section below to see what -commands you can give to this setup script. - -Of course, before you release your project to PyPI, you'll want to add a bit -more information to your setup script to help people find or learn about your -project. And maybe your project will have grown by then to include a few -dependencies, and perhaps some data files and scripts:: - - from setuptools import setup, find_packages - setup( - name = "HelloWorld", - version = "0.1", - packages = find_packages(), - scripts = ['say_hello.py'], - - # Project uses reStructuredText, so ensure that the docutils get - # installed or upgraded on the target machine - install_requires = ['docutils>=0.3'], - - package_data = { - # If any package contains *.txt or *.rst files, include them: - '': ['*.txt', '*.rst'], - # And include any *.msg files found in the 'hello' package, too: - 'hello': ['*.msg'], - } - - # metadata for upload to PyPI - author = "Me", - author_email = "me@example.com", - description = "This is an Example Package", - license = "PSF", - keywords = "hello world example examples", - url = "http://example.com/HelloWorld/", # project home page, if any - - # could also include long_description, download_url, classifiers, etc. - ) - -In the sections that follow, we'll explain what most of these ``setup()`` -arguments do (except for the metadata ones), and the various ways you might use -them in your own project(s). - - -Specifying Your Project's Version ---------------------------------- - -Setuptools can work well with most versioning schemes; there are, however, a -few special things to watch out for, in order to ensure that setuptools and -EasyInstall can always tell what version of your package is newer than another -version. Knowing these things will also help you correctly specify what -versions of other projects your project depends on. - -A version consists of an alternating series of release numbers and pre-release -or post-release tags. A release number is a series of digits punctuated by -dots, such as ``2.4`` or ``0.5``. Each series of digits is treated -numerically, so releases ``2.1`` and ``2.1.0`` are different ways to spell the -same release number, denoting the first subrelease of release 2. But ``2.10`` -is the *tenth* subrelease of release 2, and so is a different and newer release -from ``2.1`` or ``2.1.0``. Leading zeros within a series of digits are also -ignored, so ``2.01`` is the same as ``2.1``, and different from ``2.0.1``. - -Following a release number, you can have either a pre-release or post-release -tag. Pre-release tags make a version be considered *older* than the version -they are appended to. So, revision ``2.4`` is *newer* than revision ``2.4c1``, -which in turn is newer than ``2.4b1`` or ``2.4a1``. Postrelease tags make -a version be considered *newer* than the version they are appended to. So, -revisions like ``2.4-1`` and ``2.4pl3`` are newer than ``2.4``, but are *older* -than ``2.4.1`` (which has a higher release number). - -A pre-release tag is a series of letters that are alphabetically before -"final". Some examples of prerelease tags would include ``alpha``, ``beta``, -``a``, ``c``, ``dev``, and so on. You do not have to place a dot before -the prerelease tag if it's immediately after a number, but it's okay to do -so if you prefer. Thus, ``2.4c1`` and ``2.4.c1`` both represent release -candidate 1 of version ``2.4``, and are treated as identical by setuptools. - -In addition, there are three special prerelease tags that are treated as if -they were the letter ``c``: ``pre``, ``preview``, and ``rc``. So, version -``2.4rc1``, ``2.4pre1`` and ``2.4preview1`` are all the exact same version as -``2.4c1``, and are treated as identical by setuptools. - -A post-release tag is either a series of letters that are alphabetically -greater than or equal to "final", or a dash (``-``). Post-release tags are -generally used to separate patch numbers, port numbers, build numbers, revision -numbers, or date stamps from the release number. For example, the version -``2.4-r1263`` might denote Subversion revision 1263 of a post-release patch of -version ``2.4``. Or you might use ``2.4-20051127`` to denote a date-stamped -post-release. - -Notice that after each pre or post-release tag, you are free to place another -release number, followed again by more pre- or post-release tags. For example, -``0.6a9.dev-r41475`` could denote Subversion revision 41475 of the in- -development version of the ninth alpha of release 0.6. Notice that ``dev`` is -a pre-release tag, so this version is a *lower* version number than ``0.6a9``, -which would be the actual ninth alpha of release 0.6. But the ``-r41475`` is -a post-release tag, so this version is *newer* than ``0.6a9.dev``. - -For the most part, setuptools' interpretation of version numbers is intuitive, -but here are a few tips that will keep you out of trouble in the corner cases: - -* Don't use ``-`` or any other character than ``.`` as a separator, unless you - really want a post-release. Remember that ``2.1-rc2`` means you've - *already* released ``2.1``, whereas ``2.1rc2`` and ``2.1.c2`` are candidates - you're putting out *before* ``2.1``. If you accidentally distribute copies - of a post-release that you meant to be a pre-release, the only safe fix is to - bump your main release number (e.g. to ``2.1.1``) and re-release the project. - -* Don't stick adjoining pre-release tags together without a dot or number - between them. Version ``1.9adev`` is the ``adev`` prerelease of ``1.9``, - *not* a development pre-release of ``1.9a``. Use ``.dev`` instead, as in - ``1.9a.dev``, or separate the prerelease tags with a number, as in - ``1.9a0dev``. ``1.9a.dev``, ``1.9a0dev``, and even ``1.9.a.dev`` are - identical versions from setuptools' point of view, so you can use whatever - scheme you prefer. - -* If you want to be certain that your chosen numbering scheme works the way - you think it will, you can use the ``pkg_resources.parse_version()`` function - to compare different version numbers:: - - >>> from pkg_resources import parse_version - >>> parse_version('1.9.a.dev') == parse_version('1.9a0dev') - True - >>> parse_version('2.1-rc2') < parse_version('2.1') - False - >>> parse_version('0.6a9dev-r41475') < parse_version('0.6a9') - True - -Once you've decided on a version numbering scheme for your project, you can -have setuptools automatically tag your in-development releases with various -pre- or post-release tags. See the following sections for more details: - -* `Tagging and "Daily Build" or "Snapshot" Releases`_ -* `Managing "Continuous Releases" Using Subversion`_ -* The `egg_info`_ command - - -New and Changed ``setup()`` Keywords -==================================== - -The following keyword arguments to ``setup()`` are added or changed by -``setuptools``. All of them are optional; you do not have to supply them -unless you need the associated ``setuptools`` feature. - -``include_package_data`` - If set to ``True``, this tells ``setuptools`` to automatically include any - data files it finds inside your package directories, that are either under - CVS or Subversion control, or which are specified by your ``MANIFEST.in`` - file. For more information, see the section below on `Including Data - Files`_. - -``exclude_package_data`` - A dictionary mapping package names to lists of glob patterns that should - be *excluded* from your package directories. You can use this to trim back - any excess files included by ``include_package_data``. For a complete - description and examples, see the section below on `Including Data Files`_. - -``package_data`` - A dictionary mapping package names to lists of glob patterns. For a - complete description and examples, see the section below on `Including - Data Files`_. You do not need to use this option if you are using - ``include_package_data``, unless you need to add e.g. files that are - generated by your setup script and build process. (And are therefore not - in source control or are files that you don't want to include in your - source distribution.) - -``zip_safe`` - A boolean (True or False) flag specifying whether the project can be - safely installed and run from a zip file. If this argument is not - supplied, the ``bdist_egg`` command will have to analyze all of your - project's contents for possible problems each time it buids an egg. - -``install_requires`` - A string or list of strings specifying what other distributions need to - be installed when this one is. See the section below on `Declaring - Dependencies`_ for details and examples of the format of this argument. - -``entry_points`` - A dictionary mapping entry point group names to strings or lists of strings - defining the entry points. Entry points are used to support dynamic - discovery of services or plugins provided by a project. See `Dynamic - Discovery of Services and Plugins`_ for details and examples of the format - of this argument. In addition, this keyword is used to support `Automatic - Script Creation`_. - -``extras_require`` - A dictionary mapping names of "extras" (optional features of your project) - to strings or lists of strings specifying what other distributions must be - installed to support those features. See the section below on `Declaring - Dependencies`_ for details and examples of the format of this argument. - -``setup_requires`` - A string or list of strings specifying what other distributions need to - be present in order for the *setup script* to run. ``setuptools`` will - attempt to obtain these (even going so far as to download them using - ``EasyInstall``) before processing the rest of the setup script or commands. - This argument is needed if you are using distutils extensions as part of - your build process; for example, extensions that process setup() arguments - and turn them into EGG-INFO metadata files. - - (Note: projects listed in ``setup_requires`` will NOT be automatically - installed on the system where the setup script is being run. They are - simply downloaded to the setup directory if they're not locally available - already. If you want them to be installed, as well as being available - when the setup script is run, you should add them to ``install_requires`` - **and** ``setup_requires``.) - -``dependency_links`` - A list of strings naming URLs to be searched when satisfying dependencies. - These links will be used if needed to install packages specified by - ``setup_requires`` or ``tests_require``. They will also be written into - the egg's metadata for use by tools like EasyInstall to use when installing - an ``.egg`` file. - -``namespace_packages`` - A list of strings naming the project's "namespace packages". A namespace - package is a package that may be split across multiple project - distributions. For example, Zope 3's ``zope`` package is a namespace - package, because subpackages like ``zope.interface`` and ``zope.publisher`` - may be distributed separately. The egg runtime system can automatically - merge such subpackages into a single parent package at runtime, as long - as you declare them in each project that contains any subpackages of the - namespace package, and as long as the namespace package's ``__init__.py`` - does not contain any code other than a namespace declaration. See the - section below on `Namespace Packages`_ for more information. - -``test_suite`` - A string naming a ``unittest.TestCase`` subclass (or a package or module - containing one or more of them, or a method of such a subclass), or naming - a function that can be called with no arguments and returns a - ``unittest.TestSuite``. If the named suite is a module, and the module - has an ``additional_tests()`` function, it is called and the results are - added to the tests to be run. If the named suite is a package, any - submodules and subpackages are recursively added to the overall test suite. - - Specifying this argument enables use of the `test`_ command to run the - specified test suite, e.g. via ``setup.py test``. See the section on the - `test`_ command below for more details. - -``tests_require`` - If your project's tests need one or more additional packages besides those - needed to install it, you can use this option to specify them. It should - be a string or list of strings specifying what other distributions need to - be present for the package's tests to run. When you run the ``test`` - command, ``setuptools`` will attempt to obtain these (even going - so far as to download them using ``EasyInstall``). Note that these - required projects will *not* be installed on the system where the tests - are run, but only downloaded to the project's setup directory if they're - not already installed locally. - -.. _test_loader: - -``test_loader`` - If you would like to use a different way of finding tests to run than what - setuptools normally uses, you can specify a module name and class name in - this argument. The named class must be instantiable with no arguments, and - its instances must support the ``loadTestsFromNames()`` method as defined - in the Python ``unittest`` module's ``TestLoader`` class. Setuptools will - pass only one test "name" in the `names` argument: the value supplied for - the ``test_suite`` argument. The loader you specify may interpret this - string in any way it likes, as there are no restrictions on what may be - contained in a ``test_suite`` string. - - The module name and class name must be separated by a ``:``. The default - value of this argument is ``"setuptools.command.test:ScanningLoader"``. If - you want to use the default ``unittest`` behavior, you can specify - ``"unittest:TestLoader"`` as your ``test_loader`` argument instead. This - will prevent automatic scanning of submodules and subpackages. - - The module and class you specify here may be contained in another package, - as long as you use the ``tests_require`` option to ensure that the package - containing the loader class is available when the ``test`` command is run. - -``eager_resources`` - A list of strings naming resources that should be extracted together, if - any of them is needed, or if any C extensions included in the project are - imported. This argument is only useful if the project will be installed as - a zipfile, and there is a need to have all of the listed resources be - extracted to the filesystem *as a unit*. Resources listed here - should be '/'-separated paths, relative to the source root, so to list a - resource ``foo.png`` in package ``bar.baz``, you would include the string - ``bar/baz/foo.png`` in this argument. - - If you only need to obtain resources one at a time, or you don't have any C - extensions that access other files in the project (such as data files or - shared libraries), you probably do NOT need this argument and shouldn't - mess with it. For more details on how this argument works, see the section - below on `Automatic Resource Extraction`_. - - -Using ``find_packages()`` -------------------------- - -For simple projects, it's usually easy enough to manually add packages to -the ``packages`` argument of ``setup()``. However, for very large projects -(Twisted, PEAK, Zope, Chandler, etc.), it can be a big burden to keep the -package list updated. That's what ``setuptools.find_packages()`` is for. - -``find_packages()`` takes a source directory, and a list of package names or -patterns to exclude. If omitted, the source directory defaults to the same -directory as the setup script. Some projects use a ``src`` or ``lib`` -directory as the root of their source tree, and those projects would of course -use ``"src"`` or ``"lib"`` as the first argument to ``find_packages()``. (And -such projects also need something like ``package_dir = {'':'src'}`` in their -``setup()`` arguments, but that's just a normal distutils thing.) - -Anyway, ``find_packages()`` walks the target directory, and finds Python -packages by looking for ``__init__.py`` files. It then filters the list of -packages using the exclusion patterns. - -Exclusion patterns are package names, optionally including wildcards. For -example, ``find_packages(exclude=["*.tests"])`` will exclude all packages whose -last name part is ``tests``. Or, ``find_packages(exclude=["*.tests", -"*.tests.*"])`` will also exclude any subpackages of packages named ``tests``, -but it still won't exclude a top-level ``tests`` package or the children -thereof. In fact, if you really want no ``tests`` packages at all, you'll need -something like this:: - - find_packages(exclude=["*.tests", "*.tests.*", "tests.*", "tests"]) - -in order to cover all the bases. Really, the exclusion patterns are intended -to cover simpler use cases than this, like excluding a single, specified -package and its subpackages. - -Regardless of the target directory or exclusions, the ``find_packages()`` -function returns a list of package names suitable for use as the ``packages`` -argument to ``setup()``, and so is usually the easiest way to set that -argument in your setup script. Especially since it frees you from having to -remember to modify your setup script whenever your project grows additional -top-level packages or subpackages. - - -Automatic Script Creation -========================= - -Packaging and installing scripts can be a bit awkward with the distutils. For -one thing, there's no easy way to have a script's filename match local -conventions on both Windows and POSIX platforms. For another, you often have -to create a separate file just for the "main" script, when your actual "main" -is a function in a module somewhere. And even in Python 2.4, using the ``-m`` -option only works for actual ``.py`` files that aren't installed in a package. - -``setuptools`` fixes all of these problems by automatically generating scripts -for you with the correct extension, and on Windows it will even create an -``.exe`` file so that users don't have to change their ``PATHEXT`` settings. -The way to use this feature is to define "entry points" in your setup script -that indicate what function the generated script should import and run. For -example, to create two console scripts called ``foo`` and ``bar``, and a GUI -script called ``baz``, you might do something like this:: - - setup( - # other arguments here... - entry_points = { - 'console_scripts': [ - 'foo = my_package.some_module:main_func', - 'bar = other_module:some_func', - ], - 'gui_scripts': [ - 'baz = my_package_gui.start_func', - ] - } - ) - -When this project is installed on non-Windows platforms (using "setup.py -install", "setup.py develop", or by using EasyInstall), a set of ``foo``, -``bar``, and ``baz`` scripts will be installed that import ``main_func`` and -``some_func`` from the specified modules. The functions you specify are called -with no arguments, and their return value is passed to ``sys.exit()``, so you -can return an errorlevel or message to print to stderr. - -On Windows, a set of ``foo.exe``, ``bar.exe``, and ``baz.exe`` launchers are -created, alongside a set of ``foo.py``, ``bar.py``, and ``baz.pyw`` files. The -``.exe`` wrappers find and execute the right version of Python to run the -``.py`` or ``.pyw`` file. - -You may define as many "console script" and "gui script" entry points as you -like, and each one can optionally specify "extras" that it depends on, that -will be added to ``sys.path`` when the script is run. For more information on -"extras", see the section below on `Declaring Extras`_. For more information -on "entry points" in general, see the section below on `Dynamic Discovery of -Services and Plugins`_. - - -"Eggsecutable" Scripts ----------------------- - -Occasionally, there are situations where it's desirable to make an ``.egg`` -file directly executable. You can do this by including an entry point such -as the following:: - - setup( - # other arguments here... - entry_points = { - 'setuptools.installation': [ - 'eggsecutable = my_package.some_module:main_func', - ] - } - ) - -Any eggs built from the above setup script will include a short excecutable -prelude that imports and calls ``main_func()`` from ``my_package.some_module``. -The prelude can be run on Unix-like platforms (including Mac and Linux) by -invoking the egg with ``/bin/sh``, or by enabling execute permissions on the -``.egg`` file. For the executable prelude to run, the appropriate version of -Python must be available via the ``PATH`` environment variable, under its -"long" name. That is, if the egg is built for Python 2.3, there must be a -``python2.3`` executable present in a directory on ``PATH``. - -This feature is primarily intended to support distribute_setup the installation of -setuptools itself on non-Windows platforms, but may also be useful for other -projects as well. - -IMPORTANT NOTE: Eggs with an "eggsecutable" header cannot be renamed, or -invoked via symlinks. They *must* be invoked using their original filename, in -order to ensure that, once running, ``pkg_resources`` will know what project -and version is in use. The header script will check this and exit with an -error if the ``.egg`` file has been renamed or is invoked via a symlink that -changes its base name. - - -Declaring Dependencies -====================== - -``setuptools`` supports automatically installing dependencies when a package is -installed, and including information about dependencies in Python Eggs (so that -package management tools like EasyInstall can use the information). - -``setuptools`` and ``pkg_resources`` use a common syntax for specifying a -project's required dependencies. This syntax consists of a project's PyPI -name, optionally followed by a comma-separated list of "extras" in square -brackets, optionally followed by a comma-separated list of version -specifiers. A version specifier is one of the operators ``<``, ``>``, ``<=``, -``>=``, ``==`` or ``!=``, followed by a version identifier. Tokens may be -separated by whitespace, but any whitespace or nonstandard characters within a -project name or version identifier must be replaced with ``-``. - -Version specifiers for a given project are internally sorted into ascending -version order, and used to establish what ranges of versions are acceptable. -Adjacent redundant conditions are also consolidated (e.g. ``">1, >2"`` becomes -``">1"``, and ``"<2,<3"`` becomes ``"<3"``). ``"!="`` versions are excised from -the ranges they fall within. A project's version is then checked for -membership in the resulting ranges. (Note that providing conflicting conditions -for the same version (e.g. "<2,>=2" or "==2,!=2") is meaningless and may -therefore produce bizarre results.) - -Here are some example requirement specifiers:: - - docutils >= 0.3 - - # comment lines and \ continuations are allowed in requirement strings - BazSpam ==1.1, ==1.2, ==1.3, ==1.4, ==1.5, \ - ==1.6, ==1.7 # and so are line-end comments - - PEAK[FastCGI, reST]>=0.5a4 - - setuptools==0.5a7 - -The simplest way to include requirement specifiers is to use the -``install_requires`` argument to ``setup()``. It takes a string or list of -strings containing requirement specifiers. If you include more than one -requirement in a string, each requirement must begin on a new line. - -This has three effects: - -1. When your project is installed, either by using EasyInstall, ``setup.py - install``, or ``setup.py develop``, all of the dependencies not already - installed will be located (via PyPI), downloaded, built (if necessary), - and installed. - -2. Any scripts in your project will be installed with wrappers that verify - the availability of the specified dependencies at runtime, and ensure that - the correct versions are added to ``sys.path`` (e.g. if multiple versions - have been installed). - -3. Python Egg distributions will include a metadata file listing the - dependencies. - -Note, by the way, that if you declare your dependencies in ``setup.py``, you do -*not* need to use the ``require()`` function in your scripts or modules, as -long as you either install the project or use ``setup.py develop`` to do -development work on it. (See `"Development Mode"`_ below for more details on -using ``setup.py develop``.) - - -Dependencies that aren't in PyPI --------------------------------- - -If your project depends on packages that aren't registered in PyPI, you may -still be able to depend on them, as long as they are available for download -as an egg, in the standard distutils ``sdist`` format, or as a single ``.py`` -file. You just need to add some URLs to the ``dependency_links`` argument to -``setup()``. - -The URLs must be either: - -1. direct download URLs, or -2. the URLs of web pages that contain direct download links - -In general, it's better to link to web pages, because it is usually less -complex to update a web page than to release a new version of your project. -You can also use a SourceForge ``showfiles.php`` link in the case where a -package you depend on is distributed via SourceForge. - -If you depend on a package that's distributed as a single ``.py`` file, you -must include an ``"#egg=project-version"`` suffix to the URL, to give a project -name and version number. (Be sure to escape any dashes in the name or version -by replacing them with underscores.) EasyInstall will recognize this suffix -and automatically create a trivial ``setup.py`` to wrap the single ``.py`` file -as an egg. - -The ``dependency_links`` option takes the form of a list of URL strings. For -example, the below will cause EasyInstall to search the specified page for -eggs or source distributions, if the package's dependencies aren't already -installed:: - - setup( - ... - dependency_links = [ - "http://peak.telecommunity.com/snapshots/" - ], - ) - - -.. _Declaring Extras: - - -Declaring "Extras" (optional features with their own dependencies) ------------------------------------------------------------------- - -Sometimes a project has "recommended" dependencies, that are not required for -all uses of the project. For example, a project might offer optional PDF -output if ReportLab is installed, and reStructuredText support if docutils is -installed. These optional features are called "extras", and setuptools allows -you to define their requirements as well. In this way, other projects that -require these optional features can force the additional requirements to be -installed, by naming the desired extras in their ``install_requires``. - -For example, let's say that Project A offers optional PDF and reST support:: - - setup( - name="Project-A", - ... - extras_require = { - 'PDF': ["ReportLab>=1.2", "RXP"], - 'reST': ["docutils>=0.3"], - } - ) - -As you can see, the ``extras_require`` argument takes a dictionary mapping -names of "extra" features, to strings or lists of strings describing those -features' requirements. These requirements will *not* be automatically -installed unless another package depends on them (directly or indirectly) by -including the desired "extras" in square brackets after the associated project -name. (Or if the extras were listed in a requirement spec on the EasyInstall -command line.) - -Extras can be used by a project's `entry points`_ to specify dynamic -dependencies. For example, if Project A includes a "rst2pdf" script, it might -declare it like this, so that the "PDF" requirements are only resolved if the -"rst2pdf" script is run:: - - setup( - name="Project-A", - ... - entry_points = { - 'console_scripts': - ['rst2pdf = project_a.tools.pdfgen [PDF]'], - ['rst2html = project_a.tools.htmlgen'], - # more script entry points ... - } - ) - -Projects can also use another project's extras when specifying dependencies. -For example, if project B needs "project A" with PDF support installed, it -might declare the dependency like this:: - - setup( - name="Project-B", - install_requires = ["Project-A[PDF]"], - ... - ) - -This will cause ReportLab to be installed along with project A, if project B is -installed -- even if project A was already installed. In this way, a project -can encapsulate groups of optional "downstream dependencies" under a feature -name, so that packages that depend on it don't have to know what the downstream -dependencies are. If a later version of Project A builds in PDF support and -no longer needs ReportLab, or if it ends up needing other dependencies besides -ReportLab in order to provide PDF support, Project B's setup information does -not need to change, but the right packages will still be installed if needed. - -Note, by the way, that if a project ends up not needing any other packages to -support a feature, it should keep an empty requirements list for that feature -in its ``extras_require`` argument, so that packages depending on that feature -don't break (due to an invalid feature name). For example, if Project A above -builds in PDF support and no longer needs ReportLab, it could change its -setup to this:: - - setup( - name="Project-A", - ... - extras_require = { - 'PDF': [], - 'reST': ["docutils>=0.3"], - } - ) - -so that Package B doesn't have to remove the ``[PDF]`` from its requirement -specifier. - - -Including Data Files -==================== - -The distutils have traditionally allowed installation of "data files", which -are placed in a platform-specific location. However, the most common use case -for data files distributed with a package is for use *by* the package, usually -by including the data files in the package directory. - -Setuptools offers three ways to specify data files to be included in your -packages. First, you can simply use the ``include_package_data`` keyword, -e.g.:: - - from setuptools import setup, find_packages - setup( - ... - include_package_data = True - ) - -This tells setuptools to install any data files it finds in your packages. The -data files must be under CVS or Subversion control, or else they must be -specified via the distutils' ``MANIFEST.in`` file. (They can also be tracked -by another revision control system, using an appropriate plugin. See the -section below on `Adding Support for Other Revision Control Systems`_ for -information on how to write such plugins.) - -If you want finer-grained control over what files are included (for example, if -you have documentation files in your package directories and want to exclude -them from installation), then you can also use the ``package_data`` keyword, -e.g.:: - - from setuptools import setup, find_packages - setup( - ... - package_data = { - # If any package contains *.txt or *.rst files, include them: - '': ['*.txt', '*.rst'], - # And include any *.msg files found in the 'hello' package, too: - 'hello': ['*.msg'], - } - ) - -The ``package_data`` argument is a dictionary that maps from package names to -lists of glob patterns. The globs may include subdirectory names, if the data -files are contained in a subdirectory of the package. For example, if the -package tree looks like this:: - - setup.py - src/ - mypkg/ - __init__.py - mypkg.txt - data/ - somefile.dat - otherdata.dat - -The setuptools setup file might look like this:: - - from setuptools import setup, find_packages - setup( - ... - packages = find_packages('src'), # include all packages under src - package_dir = {'':'src'}, # tell distutils packages are under src - - package_data = { - # If any package contains *.txt files, include them: - '': ['*.txt'], - # And include any *.dat files found in the 'data' subdirectory - # of the 'mypkg' package, also: - 'mypkg': ['data/*.dat'], - } - ) - -Notice that if you list patterns in ``package_data`` under the empty string, -these patterns are used to find files in every package, even ones that also -have their own patterns listed. Thus, in the above example, the ``mypkg.txt`` -file gets included even though it's not listed in the patterns for ``mypkg``. - -Also notice that if you use paths, you *must* use a forward slash (``/``) as -the path separator, even if you are on Windows. Setuptools automatically -converts slashes to appropriate platform-specific separators at build time. - -(Note: although the ``package_data`` argument was previously only available in -``setuptools``, it was also added to the Python ``distutils`` package as of -Python 2.4; there is `some documentation for the feature`__ available on the -python.org website.) - -__ http://docs.python.org/dist/node11.html - -Sometimes, the ``include_package_data`` or ``package_data`` options alone -aren't sufficient to precisely define what files you want included. For -example, you may want to include package README files in your revision control -system and source distributions, but exclude them from being installed. So, -setuptools offers an ``exclude_package_data`` option as well, that allows you -to do things like this:: - - from setuptools import setup, find_packages - setup( - ... - packages = find_packages('src'), # include all packages under src - package_dir = {'':'src'}, # tell distutils packages are under src - - include_package_data = True, # include everything in source control - - # ...but exclude README.txt from all packages - exclude_package_data = { '': ['README.txt'] }, - ) - -The ``exclude_package_data`` option is a dictionary mapping package names to -lists of wildcard patterns, just like the ``package_data`` option. And, just -as with that option, a key of ``''`` will apply the given pattern(s) to all -packages. However, any files that match these patterns will be *excluded* -from installation, even if they were listed in ``package_data`` or were -included as a result of using ``include_package_data``. - -In summary, the three options allow you to: - -``include_package_data`` - Accept all data files and directories matched by ``MANIFEST.in`` or found - in source control. - -``package_data`` - Specify additional patterns to match files and directories that may or may - not be matched by ``MANIFEST.in`` or found in source control. - -``exclude_package_data`` - Specify patterns for data files and directories that should *not* be - included when a package is installed, even if they would otherwise have - been included due to the use of the preceding options. - -NOTE: Due to the way the distutils build process works, a data file that you -include in your project and then stop including may be "orphaned" in your -project's build directories, requiring you to run ``setup.py clean --all`` to -fully remove them. This may also be important for your users and contributors -if they track intermediate revisions of your project using Subversion; be sure -to let them know when you make changes that remove files from inclusion so they -can run ``setup.py clean --all``. - - -Accessing Data Files at Runtime -------------------------------- - -Typically, existing programs manipulate a package's ``__file__`` attribute in -order to find the location of data files. However, this manipulation isn't -compatible with PEP 302-based import hooks, including importing from zip files -and Python Eggs. It is strongly recommended that, if you are using data files, -you should use the `Resource Management API`_ of ``pkg_resources`` to access -them. The ``pkg_resources`` module is distributed as part of setuptools, so if -you're using setuptools to distribute your package, there is no reason not to -use its resource management API. See also `Accessing Package Resources`_ for -a quick example of converting code that uses ``__file__`` to use -``pkg_resources`` instead. - -.. _Resource Management API: http://peak.telecommunity.com/DevCenter/PythonEggs#resource-management -.. _Accessing Package Resources: http://peak.telecommunity.com/DevCenter/PythonEggs#accessing-package-resources - - -Non-Package Data Files ----------------------- - -The ``distutils`` normally install general "data files" to a platform-specific -location (e.g. ``/usr/share``). This feature intended to be used for things -like documentation, example configuration files, and the like. ``setuptools`` -does not install these data files in a separate location, however. They are -bundled inside the egg file or directory, alongside the Python modules and -packages. The data files can also be accessed using the `Resource Management -API`_, by specifying a ``Requirement`` instead of a package name:: - - from pkg_resources import Requirement, resource_filename - filename = resource_filename(Requirement.parse("MyProject"),"sample.conf") - -The above code will obtain the filename of the "sample.conf" file in the data -root of the "MyProject" distribution. - -Note, by the way, that this encapsulation of data files means that you can't -actually install data files to some arbitrary location on a user's machine; -this is a feature, not a bug. You can always include a script in your -distribution that extracts and copies your the documentation or data files to -a user-specified location, at their discretion. If you put related data files -in a single directory, you can use ``resource_filename()`` with the directory -name to get a filesystem directory that then can be copied with the ``shutil`` -module. (Even if your package is installed as a zipfile, calling -``resource_filename()`` on a directory will return an actual filesystem -directory, whose contents will be that entire subtree of your distribution.) - -(Of course, if you're writing a new package, you can just as easily place your -data files or directories inside one of your packages, rather than using the -distutils' approach. However, if you're updating an existing application, it -may be simpler not to change the way it currently specifies these data files.) - - -Automatic Resource Extraction ------------------------------ - -If you are using tools that expect your resources to be "real" files, or your -project includes non-extension native libraries or other files that your C -extensions expect to be able to access, you may need to list those files in -the ``eager_resources`` argument to ``setup()``, so that the files will be -extracted together, whenever a C extension in the project is imported. - -This is especially important if your project includes shared libraries *other* -than distutils-built C extensions, and those shared libraries use file -extensions other than ``.dll``, ``.so``, or ``.dylib``, which are the -extensions that setuptools 0.6a8 and higher automatically detects as shared -libraries and adds to the ``native_libs.txt`` file for you. Any shared -libraries whose names do not end with one of those extensions should be listed -as ``eager_resources``, because they need to be present in the filesystem when -he C extensions that link to them are used. - -The ``pkg_resources`` runtime for compressed packages will automatically -extract *all* C extensions and ``eager_resources`` at the same time, whenever -*any* C extension or eager resource is requested via the ``resource_filename()`` -API. (C extensions are imported using ``resource_filename()`` internally.) -This ensures that C extensions will see all of the "real" files that they -expect to see. - -Note also that you can list directory resource names in ``eager_resources`` as -well, in which case the directory's contents (including subdirectories) will be -extracted whenever any C extension or eager resource is requested. - -Please note that if you're not sure whether you need to use this argument, you -don't! It's really intended to support projects with lots of non-Python -dependencies and as a last resort for crufty projects that can't otherwise -handle being compressed. If your package is pure Python, Python plus data -files, or Python plus C, you really don't need this. You've got to be using -either C or an external program that needs "real" files in your project before -there's any possibility of ``eager_resources`` being relevant to your project. - - -Extensible Applications and Frameworks -====================================== - - -.. _Entry Points: - -Dynamic Discovery of Services and Plugins ------------------------------------------ - -``setuptools`` supports creating libraries that "plug in" to extensible -applications and frameworks, by letting you register "entry points" in your -project that can be imported by the application or framework. - -For example, suppose that a blogging tool wants to support plugins -that provide translation for various file types to the blog's output format. -The framework might define an "entry point group" called ``blogtool.parsers``, -and then allow plugins to register entry points for the file extensions they -support. - -This would allow people to create distributions that contain one or more -parsers for different file types, and then the blogging tool would be able to -find the parsers at runtime by looking up an entry point for the file -extension (or mime type, or however it wants to). - -Note that if the blogging tool includes parsers for certain file formats, it -can register these as entry points in its own setup script, which means it -doesn't have to special-case its built-in formats. They can just be treated -the same as any other plugin's entry points would be. - -If you're creating a project that plugs in to an existing application or -framework, you'll need to know what entry points or entry point groups are -defined by that application or framework. Then, you can register entry points -in your setup script. Here are a few examples of ways you might register an -``.rst`` file parser entry point in the ``blogtool.parsers`` entry point group, -for our hypothetical blogging tool:: - - setup( - # ... - entry_points = {'blogtool.parsers': '.rst = some_module:SomeClass'} - ) - - setup( - # ... - entry_points = {'blogtool.parsers': ['.rst = some_module:a_func']} - ) - - setup( - # ... - entry_points = """ - [blogtool.parsers] - .rst = some.nested.module:SomeClass.some_classmethod [reST] - """, - extras_require = dict(reST = "Docutils>=0.3.5") - ) - -The ``entry_points`` argument to ``setup()`` accepts either a string with -``.ini``-style sections, or a dictionary mapping entry point group names to -either strings or lists of strings containing entry point specifiers. An -entry point specifier consists of a name and value, separated by an ``=`` -sign. The value consists of a dotted module name, optionally followed by a -``:`` and a dotted identifier naming an object within the module. It can -also include a bracketed list of "extras" that are required for the entry -point to be used. When the invoking application or framework requests loading -of an entry point, any requirements implied by the associated extras will be -passed to ``pkg_resources.require()``, so that an appropriate error message -can be displayed if the needed package(s) are missing. (Of course, the -invoking app or framework can ignore such errors if it wants to make an entry -point optional if a requirement isn't installed.) - - -Defining Additional Metadata ----------------------------- - -Some extensible applications and frameworks may need to define their own kinds -of metadata to include in eggs, which they can then access using the -``pkg_resources`` metadata APIs. Ordinarily, this is done by having plugin -developers include additional files in their ``ProjectName.egg-info`` -directory. However, since it can be tedious to create such files by hand, you -may want to create a distutils extension that will create the necessary files -from arguments to ``setup()``, in much the same way that ``setuptools`` does -for many of the ``setup()`` arguments it adds. See the section below on -`Creating distutils Extensions`_ for more details, especially the subsection on -`Adding new EGG-INFO Files`_. - - -"Development Mode" -================== - -Under normal circumstances, the ``distutils`` assume that you are going to -build a distribution of your project, not use it in its "raw" or "unbuilt" -form. If you were to use the ``distutils`` that way, you would have to rebuild -and reinstall your project every time you made a change to it during -development. - -Another problem that sometimes comes up with the ``distutils`` is that you may -need to do development on two related projects at the same time. You may need -to put both projects' packages in the same directory to run them, but need to -keep them separate for revision control purposes. How can you do this? - -Setuptools allows you to deploy your projects for use in a common directory or -staging area, but without copying any files. Thus, you can edit each project's -code in its checkout directory, and only need to run build commands when you -change a project's C extensions or similarly compiled files. You can even -deploy a project into another project's checkout directory, if that's your -preferred way of working (as opposed to using a common independent staging area -or the site-packages directory). - -To do this, use the ``setup.py develop`` command. It works very similarly to -``setup.py install`` or the EasyInstall tool, except that it doesn't actually -install anything. Instead, it creates a special ``.egg-link`` file in the -deployment directory, that links to your project's source code. And, if your -deployment directory is Python's ``site-packages`` directory, it will also -update the ``easy-install.pth`` file to include your project's source code, -thereby making it available on ``sys.path`` for all programs using that Python -installation. - -In addition, the ``develop`` command creates wrapper scripts in the target -script directory that will run your in-development scripts after ensuring that -all your ``install_requires`` packages are available on ``sys.path``. - -You can deploy the same project to multiple staging areas, e.g. if you have -multiple projects on the same machine that are sharing the same project you're -doing development work. - -When you're done with a given development task, you can remove the project -source from a staging area using ``setup.py develop --uninstall``, specifying -the desired staging area if it's not the default. - -There are several options to control the precise behavior of the ``develop`` -command; see the section on the `develop`_ command below for more details. - -Note that you can also apply setuptools commands to non-setuptools projects, -using commands like this:: - - python -c "import setuptools; execfile('setup.py')" develop - -That is, you can simply list the normal setup commands and options following -the quoted part. - - -Distributing a ``setuptools``-based project -=========================================== - -Using ``setuptools``... Without bundling it! ---------------------------------------------- - -Your users might not have ``setuptools`` installed on their machines, or even -if they do, it might not be the right version. Fixing this is easy; just -download `distribute_setup.py`_, and put it in the same directory as your ``setup.py`` -script. (Be sure to add it to your revision control system, too.) Then add -these two lines to the very top of your setup script, before the script imports -anything from setuptools:: - - import distribute_setup - distribute_setup.use_setuptools() - -That's it. The ``distribute_setup`` module will automatically download a matching -version of ``setuptools`` from PyPI, if it isn't present on the target system. -Whenever you install an updated version of setuptools, you should also update -your projects' ``distribute_setup.py`` files, so that a matching version gets installed -on the target machine(s). - -By the way, setuptools supports the new PyPI "upload" command, so you can use -``setup.py sdist upload`` or ``setup.py bdist_egg upload`` to upload your -source or egg distributions respectively. Your project's current version must -be registered with PyPI first, of course; you can use ``setup.py register`` to -do that. Or you can do it all in one step, e.g. ``setup.py register sdist -bdist_egg upload`` will register the package, build source and egg -distributions, and then upload them both to PyPI, where they'll be easily -found by other projects that depend on them. - -(By the way, if you need to distribute a specific version of ``setuptools``, -you can specify the exact version and base download URL as parameters to the -``use_setuptools()`` function. See the function's docstring for details.) - - -What Your Users Should Know ---------------------------- - -In general, a setuptools-based project looks just like any distutils-based -project -- as long as your users have an internet connection and are installing -to ``site-packages``, that is. But for some users, these conditions don't -apply, and they may become frustrated if this is their first encounter with -a setuptools-based project. To keep these users happy, you should review the -following topics in your project's installation instructions, if they are -relevant to your project and your target audience isn't already familiar with -setuptools and ``easy_install``. - -Network Access - If your project is using ``distribute_setup``, you should inform users of the - need to either have network access, or to preinstall the correct version of - setuptools using the `EasyInstall installation instructions`_. Those - instructions also have tips for dealing with firewalls as well as how to - manually download and install setuptools. - -Custom Installation Locations - You should inform your users that if they are installing your project to - somewhere other than the main ``site-packages`` directory, they should - first install setuptools using the instructions for `Custom Installation - Locations`_, before installing your project. - -Your Project's Dependencies - If your project depends on other projects that may need to be downloaded - from PyPI or elsewhere, you should list them in your installation - instructions, or tell users how to find out what they are. While most - users will not need this information, any users who don't have unrestricted - internet access may have to find, download, and install the other projects - manually. (Note, however, that they must still install those projects - using ``easy_install``, or your project will not know they are installed, - and your setup script will try to download them again.) - - If you want to be especially friendly to users with limited network access, - you may wish to build eggs for your project and its dependencies, making - them all available for download from your site, or at least create a page - with links to all of the needed eggs. In this way, users with limited - network access can manually download all the eggs to a single directory, - then use the ``-f`` option of ``easy_install`` to specify the directory - to find eggs in. Users who have full network access can just use ``-f`` - with the URL of your download page, and ``easy_install`` will find all the - needed eggs using your links directly. This is also useful when your - target audience isn't able to compile packages (e.g. most Windows users) - and your package or some of its dependencies include C code. - -Subversion or CVS Users and Co-Developers - Users and co-developers who are tracking your in-development code using - CVS, Subversion, or some other revision control system should probably read - this manual's sections regarding such development. Alternately, you may - wish to create a quick-reference guide containing the tips from this manual - that apply to your particular situation. For example, if you recommend - that people use ``setup.py develop`` when tracking your in-development - code, you should let them know that this needs to be run after every update - or commit. - - Similarly, if you remove modules or data files from your project, you - should remind them to run ``setup.py clean --all`` and delete any obsolete - ``.pyc`` or ``.pyo``. (This tip applies to the distutils in general, not - just setuptools, but not everybody knows about them; be kind to your users - by spelling out your project's best practices rather than leaving them - guessing.) - -Creating System Packages - Some users want to manage all Python packages using a single package - manager, and sometimes that package manager isn't ``easy_install``! - Setuptools currently supports ``bdist_rpm``, ``bdist_wininst``, and - ``bdist_dumb`` formats for system packaging. If a user has a locally- - installed "bdist" packaging tool that internally uses the distutils - ``install`` command, it should be able to work with ``setuptools``. Some - examples of "bdist" formats that this should work with include the - ``bdist_nsi`` and ``bdist_msi`` formats for Windows. - - However, packaging tools that build binary distributions by running - ``setup.py install`` on the command line or as a subprocess will require - modification to work with setuptools. They should use the - ``--single-version-externally-managed`` option to the ``install`` command, - combined with the standard ``--root`` or ``--record`` options. - See the `install command`_ documentation below for more details. The - ``bdist_deb`` command is an example of a command that currently requires - this kind of patching to work with setuptools. - - If you or your users have a problem building a usable system package for - your project, please report the problem via the mailing list so that - either the "bdist" tool in question or setuptools can be modified to - resolve the issue. - - - -Managing Multiple Projects --------------------------- - -If you're managing several projects that need to use ``distribute_setup``, and you -are using Subversion as your revision control system, you can use the -"svn:externals" property to share a single copy of ``distribute_setup`` between -projects, so that it will always be up-to-date whenever you check out or update -an individual project, without having to manually update each project to use -a new version. - -However, because Subversion only supports using directories as externals, you -have to turn ``distribute_setup.py`` into ``distribute_setup/__init__.py`` in order -to do this, then create "externals" definitions that map the ``distribute_setup`` -directory into each project. Also, if any of your projects use -``find_packages()`` on their setup directory, you will need to exclude the -resulting ``distribute_setup`` package, to keep it from being included in your -distributions, e.g.:: - - setup( - ... - packages = find_packages(exclude=['distribute_setup']), - ) - -Of course, the ``distribute_setup`` package will still be included in your -packages' source distributions, as it needs to be. - -For your convenience, you may use the following external definition, which will -track the latest version of setuptools:: - - ez_setup svn://svn.eby-sarna.com/svnroot/ez_setup - -You can set this by executing this command in your project directory:: - - svn propedit svn:externals . - -And then adding the line shown above to the file that comes up for editing. - - -Setting the ``zip_safe`` flag ------------------------------ - -For maximum performance, Python packages are best installed as zip files. -Not all packages, however, are capable of running in compressed form, because -they may expect to be able to access either source code or data files as -normal operating system files. So, ``setuptools`` can install your project -as a zipfile or a directory, and its default choice is determined by the -project's ``zip_safe`` flag. - -You can pass a True or False value for the ``zip_safe`` argument to the -``setup()`` function, or you can omit it. If you omit it, the ``bdist_egg`` -command will analyze your project's contents to see if it can detect any -conditions that would prevent it from working in a zipfile. It will output -notices to the console about any such conditions that it finds. - -Currently, this analysis is extremely conservative: it will consider the -project unsafe if it contains any C extensions or datafiles whatsoever. This -does *not* mean that the project can't or won't work as a zipfile! It just -means that the ``bdist_egg`` authors aren't yet comfortable asserting that -the project *will* work. If the project contains no C or data files, and does -no ``__file__`` or ``__path__`` introspection or source code manipulation, then -there is an extremely solid chance the project will work when installed as a -zipfile. (And if the project uses ``pkg_resources`` for all its data file -access, then C extensions and other data files shouldn't be a problem at all. -See the `Accessing Data Files at Runtime`_ section above for more information.) - -However, if ``bdist_egg`` can't be *sure* that your package will work, but -you've checked over all the warnings it issued, and you are either satisfied it -*will* work (or if you want to try it for yourself), then you should set -``zip_safe`` to ``True`` in your ``setup()`` call. If it turns out that it -doesn't work, you can always change it to ``False``, which will force -``setuptools`` to install your project as a directory rather than as a zipfile. - -Of course, the end-user can still override either decision, if they are using -EasyInstall to install your package. And, if you want to override for testing -purposes, you can just run ``setup.py easy_install --zip-ok .`` or ``setup.py -easy_install --always-unzip .`` in your project directory. to install the -package as a zipfile or directory, respectively. - -In the future, as we gain more experience with different packages and become -more satisfied with the robustness of the ``pkg_resources`` runtime, the -"zip safety" analysis may become less conservative. However, we strongly -recommend that you determine for yourself whether your project functions -correctly when installed as a zipfile, correct any problems if you can, and -then make an explicit declaration of ``True`` or ``False`` for the ``zip_safe`` -flag, so that it will not be necessary for ``bdist_egg`` or ``EasyInstall`` to -try to guess whether your project can work as a zipfile. - - -Namespace Packages ------------------- - -Sometimes, a large package is more useful if distributed as a collection of -smaller eggs. However, Python does not normally allow the contents of a -package to be retrieved from more than one location. "Namespace packages" -are a solution for this problem. When you declare a package to be a namespace -package, it means that the package has no meaningful contents in its -``__init__.py``, and that it is merely a container for modules and subpackages. - -The ``pkg_resources`` runtime will then automatically ensure that the contents -of namespace packages that are spread over multiple eggs or directories are -combined into a single "virtual" package. - -The ``namespace_packages`` argument to ``setup()`` lets you declare your -project's namespace packages, so that they will be included in your project's -metadata. The argument should list the namespace packages that the egg -participates in. For example, the ZopeInterface project might do this:: - - setup( - # ... - namespace_packages = ['zope'] - ) - -because it contains a ``zope.interface`` package that lives in the ``zope`` -namespace package. Similarly, a project for a standalone ``zope.publisher`` -would also declare the ``zope`` namespace package. When these projects are -installed and used, Python will see them both as part of a "virtual" ``zope`` -package, even though they will be installed in different locations. - -Namespace packages don't have to be top-level packages. For example, Zope 3's -``zope.app`` package is a namespace package, and in the future PEAK's -``peak.util`` package will be too. - -Note, by the way, that your project's source tree must include the namespace -packages' ``__init__.py`` files (and the ``__init__.py`` of any parent -packages), in a normal Python package layout. These ``__init__.py`` files -*must* contain the line:: - - __import__('pkg_resources').declare_namespace(__name__) - -This code ensures that the namespace package machinery is operating and that -the current package is registered as a namespace package. - -You must NOT include any other code and data in a namespace package's -``__init__.py``. Even though it may appear to work during development, or when -projects are installed as ``.egg`` files, it will not work when the projects -are installed using "system" packaging tools -- in such cases the -``__init__.py`` files will not be installed, let alone executed. - -You must include the ``declare_namespace()`` line in the ``__init__.py`` of -*every* project that has contents for the namespace package in question, in -order to ensure that the namespace will be declared regardless of which -project's copy of ``__init__.py`` is loaded first. If the first loaded -``__init__.py`` doesn't declare it, it will never *be* declared, because no -other copies will ever be loaded!) - - -TRANSITIONAL NOTE -~~~~~~~~~~~~~~~~~ - -Setuptools 0.6a automatically calls ``declare_namespace()`` for you at runtime, -but the 0.7a versions will *not*. This is because the automatic declaration -feature has some negative side effects, such as needing to import all namespace -packages during the initialization of the ``pkg_resources`` runtime, and also -the need for ``pkg_resources`` to be explicitly imported before any namespace -packages work at all. Beginning with the 0.7a releases, you'll be responsible -for including your own declaration lines, and the automatic declaration feature -will be dropped to get rid of the negative side effects. - -During the remainder of the 0.6 development cycle, therefore, setuptools will -warn you about missing ``declare_namespace()`` calls in your ``__init__.py`` -files, and you should correct these as soon as possible before setuptools 0.7a1 -is released. Namespace packages without declaration lines will not work -correctly once a user has upgraded to setuptools 0.7a1, so it's important that -you make this change now in order to avoid having your code break in the field. -Our apologies for the inconvenience, and thank you for your patience. - - - -Tagging and "Daily Build" or "Snapshot" Releases ------------------------------------------------- - -When a set of related projects are under development, it may be important to -track finer-grained version increments than you would normally use for e.g. -"stable" releases. While stable releases might be measured in dotted numbers -with alpha/beta/etc. status codes, development versions of a project often -need to be tracked by revision or build number or even build date. This is -especially true when projects in development need to refer to one another, and -therefore may literally need an up-to-the-minute version of something! - -To support these scenarios, ``setuptools`` allows you to "tag" your source and -egg distributions by adding one or more of the following to the project's -"official" version identifier: - -* A manually-specified pre-release tag, such as "build" or "dev", or a - manually-specified post-release tag, such as a build or revision number - (``--tag-build=STRING, -bSTRING``) - -* A "last-modified revision number" string generated automatically from - Subversion's metadata (assuming your project is being built from a Subversion - "working copy") (``--tag-svn-revision, -r``) - -* An 8-character representation of the build date (``--tag-date, -d``), as - a postrelease tag - -You can add these tags by adding ``egg_info`` and the desired options to -the command line ahead of the ``sdist`` or ``bdist`` commands that you want -to generate a daily build or snapshot for. See the section below on the -`egg_info`_ command for more details. - -(Also, before you release your project, be sure to see the section above on -`Specifying Your Project's Version`_ for more information about how pre- and -post-release tags affect how setuptools and EasyInstall interpret version -numbers. This is important in order to make sure that dependency processing -tools will know which versions of your project are newer than others.) - -Finally, if you are creating builds frequently, and either building them in a -downloadable location or are copying them to a distribution server, you should -probably also check out the `rotate`_ command, which lets you automatically -delete all but the N most-recently-modified distributions matching a glob -pattern. So, you can use a command line like:: - - setup.py egg_info -rbDEV bdist_egg rotate -m.egg -k3 - -to build an egg whose version info includes 'DEV-rNNNN' (where NNNN is the -most recent Subversion revision that affected the source tree), and then -delete any egg files from the distribution directory except for the three -that were built most recently. - -If you have to manage automated builds for multiple packages, each with -different tagging and rotation policies, you may also want to check out the -`alias`_ command, which would let each package define an alias like ``daily`` -that would perform the necessary tag, build, and rotate commands. Then, a -simpler script or cron job could just run ``setup.py daily`` in each project -directory. (And, you could also define sitewide or per-user default versions -of the ``daily`` alias, so that projects that didn't define their own would -use the appropriate defaults.) - - -Generating Source Distributions -------------------------------- - -``setuptools`` enhances the distutils' default algorithm for source file -selection, so that all files managed by CVS or Subversion in your project tree -are included in any source distribution you build. This is a big improvement -over having to manually write a ``MANIFEST.in`` file and try to keep it in -sync with your project. So, if you are using CVS or Subversion, and your -source distributions only need to include files that you're tracking in -revision control, don't create a a ``MANIFEST.in`` file for your project. -(And, if you already have one, you might consider deleting it the next time -you would otherwise have to change it.) - -(NOTE: other revision control systems besides CVS and Subversion can be -supported using plugins; see the section below on `Adding Support for Other -Revision Control Systems`_ for information on how to write such plugins.) - -If you need to include automatically generated files, or files that are kept in -an unsupported revision control system, you'll need to create a ``MANIFEST.in`` -file to specify any files that the default file location algorithm doesn't -catch. See the distutils documentation for more information on the format of -the ``MANIFEST.in`` file. - -But, be sure to ignore any part of the distutils documentation that deals with -``MANIFEST`` or how it's generated from ``MANIFEST.in``; setuptools shields you -from these issues and doesn't work the same way in any case. Unlike the -distutils, setuptools regenerates the source distribution manifest file -every time you build a source distribution, and it builds it inside the -project's ``.egg-info`` directory, out of the way of your main project -directory. You therefore need not worry about whether it is up-to-date or not. - -Indeed, because setuptools' approach to determining the contents of a source -distribution is so much simpler, its ``sdist`` command omits nearly all of -the options that the distutils' more complex ``sdist`` process requires. For -all practical purposes, you'll probably use only the ``--formats`` option, if -you use any option at all. - -(By the way, if you're using some other revision control system, you might -consider creating and publishing a `revision control plugin for setuptools`_.) - - -.. _revision control plugin for setuptools: `Adding Support for Other Revision Control Systems`_ - - -Making your package available for EasyInstall ---------------------------------------------- - -If you use the ``register`` command (``setup.py register``) to register your -package with PyPI, that's most of the battle right there. (See the -`docs for the register command`_ for more details.) - -.. _docs for the register command: http://docs.python.org/dist/package-index.html - -If you also use the `upload`_ command to upload actual distributions of your -package, that's even better, because EasyInstall will be able to find and -download them directly from your project's PyPI page. - -However, there may be reasons why you don't want to upload distributions to -PyPI, and just want your existing distributions (or perhaps a Subversion -checkout) to be used instead. - -So here's what you need to do before running the ``register`` command. There -are three ``setup()`` arguments that affect EasyInstall: - -``url`` and ``download_url`` - These become links on your project's PyPI page. EasyInstall will examine - them to see if they link to a package ("primary links"), or whether they are - HTML pages. If they're HTML pages, EasyInstall scans all HREF's on the - page for primary links - -``long_description`` - EasyInstall will check any URLs contained in this argument to see if they - are primary links. - -A URL is considered a "primary link" if it is a link to a .tar.gz, .tgz, .zip, -.egg, .egg.zip, .tar.bz2, or .exe file, or if it has an ``#egg=project`` or -``#egg=project-version`` fragment identifier attached to it. EasyInstall -attempts to determine a project name and optional version number from the text -of a primary link *without* downloading it. When it has found all the primary -links, EasyInstall will select the best match based on requested version, -platform compatibility, and other criteria. - -So, if your ``url`` or ``download_url`` point either directly to a downloadable -source distribution, or to HTML page(s) that have direct links to such, then -EasyInstall will be able to locate downloads automatically. If you want to -make Subversion checkouts available, then you should create links with either -``#egg=project`` or ``#egg=project-version`` added to the URL. You should -replace ``project`` and ``version`` with the values they would have in an egg -filename. (Be sure to actually generate an egg and then use the initial part -of the filename, rather than trying to guess what the escaped form of the -project name and version number will be.) - -Note that Subversion checkout links are of lower precedence than other kinds -of distributions, so EasyInstall will not select a Subversion checkout for -downloading unless it has a version included in the ``#egg=`` suffix, and -it's a higher version than EasyInstall has seen in any other links for your -project. - -As a result, it's a common practice to use mark checkout URLs with a version of -"dev" (i.e., ``#egg=projectname-dev``), so that users can do something like -this:: - - easy_install --editable projectname==dev - -in order to check out the in-development version of ``projectname``. - - -Managing "Continuous Releases" Using Subversion ------------------------------------------------ - -If you expect your users to track in-development versions of your project via -Subversion, there are a few additional steps you should take to ensure that -things work smoothly with EasyInstall. First, you should add the following -to your project's ``setup.cfg`` file:: - - [egg_info] - tag_build = .dev - tag_svn_revision = 1 - -This will tell ``setuptools`` to generate package version numbers like -``1.0a1.dev-r1263``, which will be considered to be an *older* release than -``1.0a1``. Thus, when you actually release ``1.0a1``, the entire egg -infrastructure (including ``setuptools``, ``pkg_resources`` and EasyInstall) -will know that ``1.0a1`` supersedes any interim snapshots from Subversion, and -handle upgrades accordingly. - -(Note: the project version number you specify in ``setup.py`` should always be -the *next* version of your software, not the last released version. -Alternately, you can leave out the ``tag_build=.dev``, and always use the -*last* release as a version number, so that your post-1.0 builds are labelled -``1.0-r1263``, indicating a post-1.0 patchlevel. Most projects so far, -however, seem to prefer to think of their project as being a future version -still under development, rather than a past version being patched. It is of -course possible for a single project to have both situations, using -post-release numbering on release branches, and pre-release numbering on the -trunk. But you don't have to make things this complex if you don't want to.) - -Commonly, projects releasing code from Subversion will include a PyPI link to -their checkout URL (as described in the previous section) with an -``#egg=projectname-dev`` suffix. This allows users to request EasyInstall -to download ``projectname==dev`` in order to get the latest in-development -code. Note that if your project depends on such in-progress code, you may wish -to specify your ``install_requires`` (or other requirements) to include -``==dev``, e.g.:: - - install_requires = ["OtherProject>=0.2a1.dev-r143,==dev"] - -The above example says, "I really want at least this particular development -revision number, but feel free to follow and use an ``#egg=OtherProject-dev`` -link if you find one". This avoids the need to have actual source or binary -distribution snapshots of in-development code available, just to be able to -depend on the latest and greatest a project has to offer. - -A final note for Subversion development: if you are using SVN revision tags -as described in this section, it's a good idea to run ``setup.py develop`` -after each Subversion checkin or update, because your project's version number -will be changing, and your script wrappers need to be updated accordingly. - -Also, if the project's requirements have changed, the ``develop`` command will -take care of fetching the updated dependencies, building changed extensions, -etc. Be sure to also remind any of your users who check out your project -from Subversion that they need to run ``setup.py develop`` after every update -in order to keep their checkout completely in sync. - - -Making "Official" (Non-Snapshot) Releases -~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - -When you make an official release, creating source or binary distributions, -you will need to override the tag settings from ``setup.cfg``, so that you -don't end up registering versions like ``foobar-0.7a1.dev-r34832``. This is -easy to do if you are developing on the trunk and using tags or branches for -your releases - just make the change to ``setup.cfg`` after branching or -tagging the release, so the trunk will still produce development snapshots. - -Alternately, if you are not branching for releases, you can override the -default version options on the command line, using something like:: - - python setup.py egg_info -RDb "" sdist bdist_egg register upload - -The first part of this command (``egg_info -RDb ""``) will override the -configured tag information, before creating source and binary eggs, registering -the project with PyPI, and uploading the files. Thus, these commands will use -the plain version from your ``setup.py``, without adding the Subversion -revision number or build designation string. - -Of course, if you will be doing this a lot, you may wish to create a personal -alias for this operation, e.g.:: - - python setup.py alias -u release egg_info -RDb "" - -You can then use it like this:: - - python setup.py release sdist bdist_egg register upload - -Or of course you can create more elaborate aliases that do all of the above. -See the sections below on the `egg_info`_ and `alias`_ commands for more ideas. - - - -Distributing Extensions compiled with Pyrex -------------------------------------------- - -``setuptools`` includes transparent support for building Pyrex extensions, as -long as you define your extensions using ``setuptools.Extension``, *not* -``distutils.Extension``. You must also not import anything from Pyrex in -your setup script. - -If you follow these rules, you can safely list ``.pyx`` files as the source -of your ``Extension`` objects in the setup script. ``setuptools`` will detect -at build time whether Pyrex is installed or not. If it is, then ``setuptools`` -will use it. If not, then ``setuptools`` will silently change the -``Extension`` objects to refer to the ``.c`` counterparts of the ``.pyx`` -files, so that the normal distutils C compilation process will occur. - -Of course, for this to work, your source distributions must include the C -code generated by Pyrex, as well as your original ``.pyx`` files. This means -that you will probably want to include current ``.c`` files in your revision -control system, rebuilding them whenever you check changes in for the ``.pyx`` -source files. This will ensure that people tracking your project in CVS or -Subversion will be able to build it even if they don't have Pyrex installed, -and that your source releases will be similarly usable with or without Pyrex. - - ------------------ -Command Reference ------------------ - -.. _alias: - -``alias`` - Define shortcuts for commonly used commands -======================================================= - -Sometimes, you need to use the same commands over and over, but you can't -necessarily set them as defaults. For example, if you produce both development -snapshot releases and "stable" releases of a project, you may want to put -the distributions in different places, or use different ``egg_info`` tagging -options, etc. In these cases, it doesn't make sense to set the options in -a distutils configuration file, because the values of the options changed based -on what you're trying to do. - -Setuptools therefore allows you to define "aliases" - shortcut names for -an arbitrary string of commands and options, using ``setup.py alias aliasname -expansion``, where aliasname is the name of the new alias, and the remainder of -the command line supplies its expansion. For example, this command defines -a sitewide alias called "daily", that sets various ``egg_info`` tagging -options:: - - setup.py alias --global-config daily egg_info --tag-svn-revision \ - --tag-build=development - -Once the alias is defined, it can then be used with other setup commands, -e.g.:: - - setup.py daily bdist_egg # generate a daily-build .egg file - setup.py daily sdist # generate a daily-build source distro - setup.py daily sdist bdist_egg # generate both - -The above commands are interpreted as if the word ``daily`` were replaced with -``egg_info --tag-svn-revision --tag-build=development``. - -Note that setuptools will expand each alias *at most once* in a given command -line. This serves two purposes. First, if you accidentally create an alias -loop, it will have no effect; you'll instead get an error message about an -unknown command. Second, it allows you to define an alias for a command, that -uses that command. For example, this (project-local) alias:: - - setup.py alias bdist_egg bdist_egg rotate -k1 -m.egg - -redefines the ``bdist_egg`` command so that it always runs the ``rotate`` -command afterwards to delete all but the newest egg file. It doesn't loop -indefinitely on ``bdist_egg`` because the alias is only expanded once when -used. - -You can remove a defined alias with the ``--remove`` (or ``-r``) option, e.g.:: - - setup.py alias --global-config --remove daily - -would delete the "daily" alias we defined above. - -Aliases can be defined on a project-specific, per-user, or sitewide basis. The -default is to define or remove a project-specific alias, but you can use any of -the `configuration file options`_ (listed under the `saveopts`_ command, below) -to determine which distutils configuration file an aliases will be added to -(or removed from). - -Note that if you omit the "expansion" argument to the ``alias`` command, -you'll get output showing that alias' current definition (and what -configuration file it's defined in). If you omit the alias name as well, -you'll get a listing of all current aliases along with their configuration -file locations. - - -``bdist_egg`` - Create a Python Egg for the project -=================================================== - -This command generates a Python Egg (``.egg`` file) for the project. Python -Eggs are the preferred binary distribution format for EasyInstall, because they -are cross-platform (for "pure" packages), directly importable, and contain -project metadata including scripts and information about the project's -dependencies. They can be simply downloaded and added to ``sys.path`` -directly, or they can be placed in a directory on ``sys.path`` and then -automatically discovered by the egg runtime system. - -This command runs the `egg_info`_ command (if it hasn't already run) to update -the project's metadata (``.egg-info``) directory. If you have added any extra -metadata files to the ``.egg-info`` directory, those files will be included in -the new egg file's metadata directory, for use by the egg runtime system or by -any applications or frameworks that use that metadata. - -You won't usually need to specify any special options for this command; just -use ``bdist_egg`` and you're done. But there are a few options that may -be occasionally useful: - -``--dist-dir=DIR, -d DIR`` - Set the directory where the ``.egg`` file will be placed. If you don't - supply this, then the ``--dist-dir`` setting of the ``bdist`` command - will be used, which is usually a directory named ``dist`` in the project - directory. - -``--plat-name=PLATFORM, -p PLATFORM`` - Set the platform name string that will be embedded in the egg's filename - (assuming the egg contains C extensions). This can be used to override - the distutils default platform name with something more meaningful. Keep - in mind, however, that the egg runtime system expects to see eggs with - distutils platform names, so it may ignore or reject eggs with non-standard - platform names. Similarly, the EasyInstall program may ignore them when - searching web pages for download links. However, if you are - cross-compiling or doing some other unusual things, you might find a use - for this option. - -``--exclude-source-files`` - Don't include any modules' ``.py`` files in the egg, just compiled Python, - C, and data files. (Note that this doesn't affect any ``.py`` files in the - EGG-INFO directory or its subdirectories, since for example there may be - scripts with a ``.py`` extension which must still be retained.) We don't - recommend that you use this option except for packages that are being - bundled for proprietary end-user applications, or for "embedded" scenarios - where space is at an absolute premium. On the other hand, if your package - is going to be installed and used in compressed form, you might as well - exclude the source because Python's ``traceback`` module doesn't currently - understand how to display zipped source code anyway, or how to deal with - files that are in a different place from where their code was compiled. - -There are also some options you will probably never need, but which are there -because they were copied from similar ``bdist`` commands used as an example for -creating this one. They may be useful for testing and debugging, however, -which is why we kept them: - -``--keep-temp, -k`` - Keep the contents of the ``--bdist-dir`` tree around after creating the - ``.egg`` file. - -``--bdist-dir=DIR, -b DIR`` - Set the temporary directory for creating the distribution. The entire - contents of this directory are zipped to create the ``.egg`` file, after - running various installation commands to copy the package's modules, data, - and extensions here. - -``--skip-build`` - Skip doing any "build" commands; just go straight to the - install-and-compress phases. - - -.. _develop: - -``develop`` - Deploy the project source in "Development Mode" -============================================================= - -This command allows you to deploy your project's source for use in one or more -"staging areas" where it will be available for importing. This deployment is -done in such a way that changes to the project source are immediately available -in the staging area(s), without needing to run a build or install step after -each change. - -The ``develop`` command works by creating an ``.egg-link`` file (named for the -project) in the given staging area. If the staging area is Python's -``site-packages`` directory, it also updates an ``easy-install.pth`` file so -that the project is on ``sys.path`` by default for all programs run using that -Python installation. - -The ``develop`` command also installs wrapper scripts in the staging area (or -a separate directory, as specified) that will ensure the project's dependencies -are available on ``sys.path`` before running the project's source scripts. -And, it ensures that any missing project dependencies are available in the -staging area, by downloading and installing them if necessary. - -Last, but not least, the ``develop`` command invokes the ``build_ext -i`` -command to ensure any C extensions in the project have been built and are -up-to-date, and the ``egg_info`` command to ensure the project's metadata is -updated (so that the runtime and wrappers know what the project's dependencies -are). If you make any changes to the project's setup script or C extensions, -you should rerun the ``develop`` command against all relevant staging areas to -keep the project's scripts, metadata and extensions up-to-date. Most other -kinds of changes to your project should not require any build operations or -rerunning ``develop``, but keep in mind that even minor changes to the setup -script (e.g. changing an entry point definition) require you to re-run the -``develop`` or ``test`` commands to keep the distribution updated. - -Here are some of the options that the ``develop`` command accepts. Note that -they affect the project's dependencies as well as the project itself, so if you -have dependencies that need to be installed and you use ``--exclude-scripts`` -(for example), the dependencies' scripts will not be installed either! For -this reason, you may want to use EasyInstall to install the project's -dependencies before using the ``develop`` command, if you need finer control -over the installation options for dependencies. - -``--uninstall, -u`` - Un-deploy the current project. You may use the ``--install-dir`` or ``-d`` - option to designate the staging area. The created ``.egg-link`` file will - be removed, if present and it is still pointing to the project directory. - The project directory will be removed from ``easy-install.pth`` if the - staging area is Python's ``site-packages`` directory. - - Note that this option currently does *not* uninstall script wrappers! You - must uninstall them yourself, or overwrite them by using EasyInstall to - activate a different version of the package. You can also avoid installing - script wrappers in the first place, if you use the ``--exclude-scripts`` - (aka ``-x``) option when you run ``develop`` to deploy the project. - -``--multi-version, -m`` - "Multi-version" mode. Specifying this option prevents ``develop`` from - adding an ``easy-install.pth`` entry for the project(s) being deployed, and - if an entry for any version of a project already exists, the entry will be - removed upon successful deployment. In multi-version mode, no specific - version of the package is available for importing, unless you use - ``pkg_resources.require()`` to put it on ``sys.path``, or you are running - a wrapper script generated by ``setuptools`` or EasyInstall. (In which - case the wrapper script calls ``require()`` for you.) - - Note that if you install to a directory other than ``site-packages``, - this option is automatically in effect, because ``.pth`` files can only be - used in ``site-packages`` (at least in Python 2.3 and 2.4). So, if you use - the ``--install-dir`` or ``-d`` option (or they are set via configuration - file(s)) your project and its dependencies will be deployed in multi- - version mode. - -``--install-dir=DIR, -d DIR`` - Set the installation directory (staging area). If this option is not - directly specified on the command line or in a distutils configuration - file, the distutils default installation location is used. Normally, this - will be the ``site-packages`` directory, but if you are using distutils - configuration files, setting things like ``prefix`` or ``install_lib``, - then those settings are taken into account when computing the default - staging area. - -``--script-dir=DIR, -s DIR`` - Set the script installation directory. If you don't supply this option - (via the command line or a configuration file), but you *have* supplied - an ``--install-dir`` (via command line or config file), then this option - defaults to the same directory, so that the scripts will be able to find - their associated package installation. Otherwise, this setting defaults - to the location where the distutils would normally install scripts, taking - any distutils configuration file settings into account. - -``--exclude-scripts, -x`` - Don't deploy script wrappers. This is useful if you don't want to disturb - existing versions of the scripts in the staging area. - -``--always-copy, -a`` - Copy all needed distributions to the staging area, even if they - are already present in another directory on ``sys.path``. By default, if - a requirement can be met using a distribution that is already available in - a directory on ``sys.path``, it will not be copied to the staging area. - -``--egg-path=DIR`` - Force the generated ``.egg-link`` file to use a specified relative path - to the source directory. This can be useful in circumstances where your - installation directory is being shared by code running under multiple - platforms (e.g. Mac and Windows) which have different absolute locations - for the code under development, but the same *relative* locations with - respect to the installation directory. If you use this option when - installing, you must supply the same relative path when uninstalling. - -In addition to the above options, the ``develop`` command also accepts all of -the same options accepted by ``easy_install``. If you've configured any -``easy_install`` settings in your ``setup.cfg`` (or other distutils config -files), the ``develop`` command will use them as defaults, unless you override -them in a ``[develop]`` section or on the command line. - - -``easy_install`` - Find and install packages -============================================ - -This command runs the `EasyInstall tool -`_ for you. It is exactly -equivalent to running the ``easy_install`` command. All command line arguments -following this command are consumed and not processed further by the distutils, -so this must be the last command listed on the command line. Please see -the EasyInstall documentation for the options reference and usage examples. -Normally, there is no reason to use this command via the command line, as you -can just use ``easy_install`` directly. It's only listed here so that you know -it's a distutils command, which means that you can: - -* create command aliases that use it, -* create distutils extensions that invoke it as a subcommand, and -* configure options for it in your ``setup.cfg`` or other distutils config - files. - - -.. _egg_info: - -``egg_info`` - Create egg metadata and set build tags -===================================================== - -This command performs two operations: it updates a project's ``.egg-info`` -metadata directory (used by the ``bdist_egg``, ``develop``, and ``test`` -commands), and it allows you to temporarily change a project's version string, -to support "daily builds" or "snapshot" releases. It is run automatically by -the ``sdist``, ``bdist_egg``, ``develop``, ``register``, and ``test`` commands -in order to update the project's metadata, but you can also specify it -explicitly in order to temporarily change the project's version string while -executing other commands. (It also generates the``.egg-info/SOURCES.txt`` -manifest file, which is used when you are building source distributions.) - -In addition to writing the core egg metadata defined by ``setuptools`` and -required by ``pkg_resources``, this command can be extended to write other -metadata files as well, by defining entry points in the ``egg_info.writers`` -group. See the section on `Adding new EGG-INFO Files`_ below for more details. -Note that using additional metadata writers may require you to include a -``setup_requires`` argument to ``setup()`` in order to ensure that the desired -writers are available on ``sys.path``. - - -Release Tagging Options ------------------------ - -The following options can be used to modify the project's version string for -all remaining commands on the setup command line. The options are processed -in the order shown, so if you use more than one, the requested tags will be -added in the following order: - -``--tag-build=NAME, -b NAME`` - Append NAME to the project's version string. Due to the way setuptools - processes "pre-release" version suffixes beginning with the letters "a" - through "e" (like "alpha", "beta", and "candidate"), you will usually want - to use a tag like ".build" or ".dev", as this will cause the version number - to be considered *lower* than the project's default version. (If you - want to make the version number *higher* than the default version, you can - always leave off --tag-build and then use one or both of the following - options.) - - If you have a default build tag set in your ``setup.cfg``, you can suppress - it on the command line using ``-b ""`` or ``--tag-build=""`` as an argument - to the ``egg_info`` command. - -``--tag-svn-revision, -r`` - If the current directory is a Subversion checkout (i.e. has a ``.svn`` - subdirectory, this appends a string of the form "-rNNNN" to the project's - version string, where NNNN is the revision number of the most recent - modification to the current directory, as obtained from the ``svn info`` - command. - - If the current directory is not a Subversion checkout, the command will - look for a ``PKG-INFO`` file instead, and try to find the revision number - from that, by looking for a "-rNNNN" string at the end of the version - number. (This is so that building a package from a source distribution of - a Subversion snapshot will produce a binary with the correct version - number.) - - If there is no ``PKG-INFO`` file, or the version number contained therein - does not end with ``-r`` and a number, then ``-r0`` is used. - -``--no-svn-revision, -R`` - Don't include the Subversion revision in the version number. This option - is included so you can override a default setting put in ``setup.cfg``. - -``--tag-date, -d`` - Add a date stamp of the form "-YYYYMMDD" (e.g. "-20050528") to the - project's version number. - -``--no-date, -D`` - Don't include a date stamp in the version number. This option is included - so you can override a default setting in ``setup.cfg``. - - -(Note: Because these options modify the version number used for source and -binary distributions of your project, you should first make sure that you know -how the resulting version numbers will be interpreted by automated tools -like EasyInstall. See the section above on `Specifying Your Project's -Version`_ for an explanation of pre- and post-release tags, as well as tips on -how to choose and verify a versioning scheme for your your project.) - -For advanced uses, there is one other option that can be set, to change the -location of the project's ``.egg-info`` directory. Commands that need to find -the project's source directory or metadata should get it from this setting: - - -Other ``egg_info`` Options --------------------------- - -``--egg-base=SOURCEDIR, -e SOURCEDIR`` - Specify the directory that should contain the .egg-info directory. This - should normally be the root of your project's source tree (which is not - necessarily the same as your project directory; some projects use a ``src`` - or ``lib`` subdirectory as the source root). You should not normally need - to specify this directory, as it is normally determined from the - ``package_dir`` argument to the ``setup()`` function, if any. If there is - no ``package_dir`` set, this option defaults to the current directory. - - -``egg_info`` Examples ---------------------- - -Creating a dated "nightly build" snapshot egg:: - - python setup.py egg_info --tag-date --tag-build=DEV bdist_egg - -Creating and uploading a release with no version tags, even if some default -tags are specified in ``setup.cfg``:: - - python setup.py egg_info -RDb "" sdist bdist_egg register upload - -(Notice that ``egg_info`` must always appear on the command line *before* any -commands that you want the version changes to apply to.) - - -.. _install command: - -``install`` - Run ``easy_install`` or old-style installation -============================================================ - -The setuptools ``install`` command is basically a shortcut to run the -``easy_install`` command on the current project. However, for convenience -in creating "system packages" of setuptools-based projects, you can also -use this option: - -``--single-version-externally-managed`` - This boolean option tells the ``install`` command to perform an "old style" - installation, with the addition of an ``.egg-info`` directory so that the - installed project will still have its metadata available and operate - normally. If you use this option, you *must* also specify the ``--root`` - or ``--record`` options (or both), because otherwise you will have no way - to identify and remove the installed files. - -This option is automatically in effect when ``install`` is invoked by another -distutils command, so that commands like ``bdist_wininst`` and ``bdist_rpm`` -will create system packages of eggs. It is also automatically in effect if -you specify the ``--root`` option. - - -``install_egg_info`` - Install an ``.egg-info`` directory in ``site-packages`` -============================================================================== - -Setuptools runs this command as part of ``install`` operations that use the -``--single-version-externally-managed`` options. You should not invoke it -directly; it is documented here for completeness and so that distutils -extensions such as system package builders can make use of it. This command -has only one option: - -``--install-dir=DIR, -d DIR`` - The parent directory where the ``.egg-info`` directory will be placed. - Defaults to the same as the ``--install-dir`` option specified for the - ``install_lib`` command, which is usually the system ``site-packages`` - directory. - -This command assumes that the ``egg_info`` command has been given valid options -via the command line or ``setup.cfg``, as it will invoke the ``egg_info`` -command and use its options to locate the project's source ``.egg-info`` -directory. - - -.. _rotate: - -``rotate`` - Delete outdated distribution files -=============================================== - -As you develop new versions of your project, your distribution (``dist``) -directory will gradually fill up with older source and/or binary distribution -files. The ``rotate`` command lets you automatically clean these up, keeping -only the N most-recently modified files matching a given pattern. - -``--match=PATTERNLIST, -m PATTERNLIST`` - Comma-separated list of glob patterns to match. This option is *required*. - The project name and ``-*`` is prepended to the supplied patterns, in order - to match only distributions belonging to the current project (in case you - have a shared distribution directory for multiple projects). Typically, - you will use a glob pattern like ``.zip`` or ``.egg`` to match files of - the specified type. Note that each supplied pattern is treated as a - distinct group of files for purposes of selecting files to delete. - -``--keep=COUNT, -k COUNT`` - Number of matching distributions to keep. For each group of files - identified by a pattern specified with the ``--match`` option, delete all - but the COUNT most-recently-modified files in that group. This option is - *required*. - -``--dist-dir=DIR, -d DIR`` - Directory where the distributions are. This defaults to the value of the - ``bdist`` command's ``--dist-dir`` option, which will usually be the - project's ``dist`` subdirectory. - -**Example 1**: Delete all .tar.gz files from the distribution directory, except -for the 3 most recently modified ones:: - - setup.py rotate --match=.tar.gz --keep=3 - -**Example 2**: Delete all Python 2.3 or Python 2.4 eggs from the distribution -directory, except the most recently modified one for each Python version:: - - setup.py rotate --match=-py2.3*.egg,-py2.4*.egg --keep=1 - - -.. _saveopts: - -``saveopts`` - Save used options to a configuration file -======================================================== - -Finding and editing ``distutils`` configuration files can be a pain, especially -since you also have to translate the configuration options from command-line -form to the proper configuration file format. You can avoid these hassles by -using the ``saveopts`` command. Just add it to the command line to save the -options you used. For example, this command builds the project using -the ``mingw32`` C compiler, then saves the --compiler setting as the default -for future builds (even those run implicitly by the ``install`` command):: - - setup.py build --compiler=mingw32 saveopts - -The ``saveopts`` command saves all options for every commmand specified on the -command line to the project's local ``setup.cfg`` file, unless you use one of -the `configuration file options`_ to change where the options are saved. For -example, this command does the same as above, but saves the compiler setting -to the site-wide (global) distutils configuration:: - - setup.py build --compiler=mingw32 saveopts -g - -Note that it doesn't matter where you place the ``saveopts`` command on the -command line; it will still save all the options specified for all commands. -For example, this is another valid way to spell the last example:: - - setup.py saveopts -g build --compiler=mingw32 - -Note, however, that all of the commands specified are always run, regardless of -where ``saveopts`` is placed on the command line. - - -Configuration File Options --------------------------- - -Normally, settings such as options and aliases are saved to the project's -local ``setup.cfg`` file. But you can override this and save them to the -global or per-user configuration files, or to a manually-specified filename. - -``--global-config, -g`` - Save settings to the global ``distutils.cfg`` file inside the ``distutils`` - package directory. You must have write access to that directory to use - this option. You also can't combine this option with ``-u`` or ``-f``. - -``--user-config, -u`` - Save settings to the current user's ``~/.pydistutils.cfg`` (POSIX) or - ``$HOME/pydistutils.cfg`` (Windows) file. You can't combine this option - with ``-g`` or ``-f``. - -``--filename=FILENAME, -f FILENAME`` - Save settings to the specified configuration file to use. You can't - combine this option with ``-g`` or ``-u``. Note that if you specify a - non-standard filename, the ``distutils`` and ``setuptools`` will not - use the file's contents. This option is mainly included for use in - testing. - -These options are used by other ``setuptools`` commands that modify -configuration files, such as the `alias`_ and `setopt`_ commands. - - -.. _setopt: - -``setopt`` - Set a distutils or setuptools option in a config file -================================================================== - -This command is mainly for use by scripts, but it can also be used as a quick -and dirty way to change a distutils configuration option without having to -remember what file the options are in and then open an editor. - -**Example 1**. Set the default C compiler to ``mingw32`` (using long option -names):: - - setup.py setopt --command=build --option=compiler --set-value=mingw32 - -**Example 2**. Remove any setting for the distutils default package -installation directory (short option names):: - - setup.py setopt -c install -o install_lib -r - - -Options for the ``setopt`` command: - -``--command=COMMAND, -c COMMAND`` - Command to set the option for. This option is required. - -``--option=OPTION, -o OPTION`` - The name of the option to set. This option is required. - -``--set-value=VALUE, -s VALUE`` - The value to set the option to. Not needed if ``-r`` or ``--remove`` is - set. - -``--remove, -r`` - Remove (unset) the option, instead of setting it. - -In addition to the above options, you may use any of the `configuration file -options`_ (listed under the `saveopts`_ command, above) to determine which -distutils configuration file the option will be added to (or removed from). - - -.. _test: - -``test`` - Build package and run a unittest suite -================================================= - -When doing test-driven development, or running automated builds that need -testing before they are deployed for downloading or use, it's often useful -to be able to run a project's unit tests without actually deploying the project -anywhere, even using the ``develop`` command. The ``test`` command runs a -project's unit tests without actually deploying it, by temporarily putting the -project's source on ``sys.path``, after first running ``build_ext -i`` and -``egg_info`` to ensure that any C extensions and project metadata are -up-to-date. - -To use this command, your project's tests must be wrapped in a ``unittest`` -test suite by either a function, a ``TestCase`` class or method, or a module -or package containing ``TestCase`` classes. If the named suite is a module, -and the module has an ``additional_tests()`` function, it is called and the -result (which must be a ``unittest.TestSuite``) is added to the tests to be -run. If the named suite is a package, any submodules and subpackages are -recursively added to the overall test suite. (Note: if your project specifies -a ``test_loader``, the rules for processing the chosen ``test_suite`` may -differ; see the `test_loader`_ documentation for more details.) - -Note that many test systems including ``doctest`` support wrapping their -non-``unittest`` tests in ``TestSuite`` objects. So, if you are using a test -package that does not support this, we suggest you encourage its developers to -implement test suite support, as this is a convenient and standard way to -aggregate a collection of tests to be run under a common test harness. - -By default, tests will be run in the "verbose" mode of the ``unittest`` -package's text test runner, but you can get the "quiet" mode (just dots) if -you supply the ``-q`` or ``--quiet`` option, either as a global option to -the setup script (e.g. ``setup.py -q test``) or as an option for the ``test`` -command itself (e.g. ``setup.py test -q``). There is one other option -available: - -``--test-suite=NAME, -s NAME`` - Specify the test suite (or module, class, or method) to be run - (e.g. ``some_module.test_suite``). The default for this option can be - set by giving a ``test_suite`` argument to the ``setup()`` function, e.g.:: - - setup( - # ... - test_suite = "my_package.tests.test_all" - ) - - If you did not set a ``test_suite`` in your ``setup()`` call, and do not - provide a ``--test-suite`` option, an error will occur. - - -.. _upload: - -``upload`` - Upload source and/or egg distributions to PyPI -=========================================================== - -PyPI now supports uploading project files for redistribution; uploaded files -are easily found by EasyInstall, even if you don't have download links on your -project's home page. - -Although Python 2.5 will support uploading all types of distributions to PyPI, -setuptools only supports source distributions and eggs. (This is partly -because PyPI's upload support is currently broken for various other file -types.) To upload files, you must include the ``upload`` command *after* the -``sdist`` or ``bdist_egg`` commands on the setup command line. For example:: - - setup.py bdist_egg upload # create an egg and upload it - setup.py sdist upload # create a source distro and upload it - setup.py sdist bdist_egg upload # create and upload both - -Note that to upload files for a project, the corresponding version must already -be registered with PyPI, using the distutils ``register`` command. It's -usually a good idea to include the ``register`` command at the start of the -command line, so that any registration problems can be found and fixed before -building and uploading the distributions, e.g.:: - - setup.py register sdist bdist_egg upload - -This will update PyPI's listing for your project's current version. - -Note, by the way, that the metadata in your ``setup()`` call determines what -will be listed in PyPI for your package. Try to fill out as much of it as -possible, as it will save you a lot of trouble manually adding and updating -your PyPI listings. Just put it in ``setup.py`` and use the ``register`` -comamnd to keep PyPI up to date. - -The ``upload`` command has a few options worth noting: - -``--sign, -s`` - Sign each uploaded file using GPG (GNU Privacy Guard). The ``gpg`` program - must be available for execution on the system ``PATH``. - -``--identity=NAME, -i NAME`` - Specify the identity or key name for GPG to use when signing. The value of - this option will be passed through the ``--local-user`` option of the - ``gpg`` program. - -``--show-response`` - Display the full response text from server; this is useful for debugging - PyPI problems. - -``--repository=URL, -r URL`` - The URL of the repository to upload to. Defaults to - http://pypi.python.org/pypi (i.e., the main PyPI installation). - - ------------------------------------- -Extending and Reusing ``setuptools`` ------------------------------------- - -Creating ``distutils`` Extensions -================================= - -It can be hard to add new commands or setup arguments to the distutils. But -the ``setuptools`` package makes it a bit easier, by allowing you to distribute -a distutils extension as a separate project, and then have projects that need -the extension just refer to it in their ``setup_requires`` argument. - -With ``setuptools``, your distutils extension projects can hook in new -commands and ``setup()`` arguments just by defining "entry points". These -are mappings from command or argument names to a specification of where to -import a handler from. (See the section on `Dynamic Discovery of Services and -Plugins`_ above for some more background on entry points.) - - -Adding Commands ---------------- - -You can add new ``setup`` commands by defining entry points in the -``distutils.commands`` group. For example, if you wanted to add a ``foo`` -command, you might add something like this to your distutils extension -project's setup script:: - - setup( - # ... - entry_points = { - "distutils.commands": [ - "foo = mypackage.some_module:foo", - ], - }, - ) - -(Assuming, of course, that the ``foo`` class in ``mypackage.some_module`` is -a ``setuptools.Command`` subclass.) - -Once a project containing such entry points has been activated on ``sys.path``, -(e.g. by running "install" or "develop" with a site-packages installation -directory) the command(s) will be available to any ``setuptools``-based setup -scripts. It is not necessary to use the ``--command-packages`` option or -to monkeypatch the ``distutils.command`` package to install your commands; -``setuptools`` automatically adds a wrapper to the distutils to search for -entry points in the active distributions on ``sys.path``. In fact, this is -how setuptools' own commands are installed: the setuptools project's setup -script defines entry points for them! - - -Adding ``setup()`` Arguments ----------------------------- - -Sometimes, your commands may need additional arguments to the ``setup()`` -call. You can enable this by defining entry points in the -``distutils.setup_keywords`` group. For example, if you wanted a ``setup()`` -argument called ``bar_baz``, you might add something like this to your -distutils extension project's setup script:: - - setup( - # ... - entry_points = { - "distutils.commands": [ - "foo = mypackage.some_module:foo", - ], - "distutils.setup_keywords": [ - "bar_baz = mypackage.some_module:validate_bar_baz", - ], - }, - ) - -The idea here is that the entry point defines a function that will be called -to validate the ``setup()`` argument, if it's supplied. The ``Distribution`` -object will have the initial value of the attribute set to ``None``, and the -validation function will only be called if the ``setup()`` call sets it to -a non-None value. Here's an example validation function:: - - def assert_bool(dist, attr, value): - """Verify that value is True, False, 0, or 1""" - if bool(value) != value: - raise DistutilsSetupError( - "%r must be a boolean value (got %r)" % (attr,value) - ) - -Your function should accept three arguments: the ``Distribution`` object, -the attribute name, and the attribute value. It should raise a -``DistutilsSetupError`` (from the ``distutils.error`` module) if the argument -is invalid. Remember, your function will only be called with non-None values, -and the default value of arguments defined this way is always None. So, your -commands should always be prepared for the possibility that the attribute will -be ``None`` when they access it later. - -If more than one active distribution defines an entry point for the same -``setup()`` argument, *all* of them will be called. This allows multiple -distutils extensions to define a common argument, as long as they agree on -what values of that argument are valid. - -Also note that as with commands, it is not necessary to subclass or monkeypatch -the distutils ``Distribution`` class in order to add your arguments; it is -sufficient to define the entry points in your extension, as long as any setup -script using your extension lists your project in its ``setup_requires`` -argument. - - -Adding new EGG-INFO Files -------------------------- - -Some extensible applications or frameworks may want to allow third parties to -develop plugins with application or framework-specific metadata included in -the plugins' EGG-INFO directory, for easy access via the ``pkg_resources`` -metadata API. The easiest way to allow this is to create a distutils extension -to be used from the plugin projects' setup scripts (via ``setup_requires``) -that defines a new setup keyword, and then uses that data to write an EGG-INFO -file when the ``egg_info`` command is run. - -The ``egg_info`` command looks for extension points in an ``egg_info.writers`` -group, and calls them to write the files. Here's a simple example of a -distutils extension defining a setup argument ``foo_bar``, which is a list of -lines that will be written to ``foo_bar.txt`` in the EGG-INFO directory of any -project that uses the argument:: - - setup( - # ... - entry_points = { - "distutils.setup_keywords": [ - "foo_bar = setuptools.dist:assert_string_list", - ], - "egg_info.writers": [ - "foo_bar.txt = setuptools.command.egg_info:write_arg", - ], - }, - ) - -This simple example makes use of two utility functions defined by setuptools -for its own use: a routine to validate that a setup keyword is a sequence of -strings, and another one that looks up a setup argument and writes it to -a file. Here's what the writer utility looks like:: - - def write_arg(cmd, basename, filename): - argname = os.path.splitext(basename)[0] - value = getattr(cmd.distribution, argname, None) - if value is not None: - value = '\n'.join(value)+'\n' - cmd.write_or_delete_file(argname, filename, value) - -As you can see, ``egg_info.writers`` entry points must be a function taking -three arguments: a ``egg_info`` command instance, the basename of the file to -write (e.g. ``foo_bar.txt``), and the actual full filename that should be -written to. - -In general, writer functions should honor the command object's ``dry_run`` -setting when writing files, and use the ``distutils.log`` object to do any -console output. The easiest way to conform to this requirement is to use -the ``cmd`` object's ``write_file()``, ``delete_file()``, and -``write_or_delete_file()`` methods exclusively for your file operations. See -those methods' docstrings for more details. - - -Adding Support for Other Revision Control Systems -------------------------------------------------- - -If you would like to create a plugin for ``setuptools`` to find files in other -source control systems besides CVS and Subversion, you can do so by adding an -entry point to the ``setuptools.file_finders`` group. The entry point should -be a function accepting a single directory name, and should yield -all the filenames within that directory (and any subdirectories thereof) that -are under revision control. - -For example, if you were going to create a plugin for a revision control system -called "foobar", you would write a function something like this:: - - def find_files_for_foobar(dirname): - # loop to yield paths that start with `dirname` - -And you would register it in a setup script using something like this:: - - entry_points = { - "setuptools.file_finders": [ - "foobar = my_foobar_module:find_files_for_foobar" - ] - } - -Then, anyone who wants to use your plugin can simply install it, and their -local setuptools installation will be able to find the necessary files. - -It is not necessary to distribute source control plugins with projects that -simply use the other source control system, or to specify the plugins in -``setup_requires``. When you create a source distribution with the ``sdist`` -command, setuptools automatically records what files were found in the -``SOURCES.txt`` file. That way, recipients of source distributions don't need -to have revision control at all. However, if someone is working on a package -by checking out with that system, they will need the same plugin(s) that the -original author is using. - -A few important points for writing revision control file finders: - -* Your finder function MUST return relative paths, created by appending to the - passed-in directory name. Absolute paths are NOT allowed, nor are relative - paths that reference a parent directory of the passed-in directory. - -* Your finder function MUST accept an empty string as the directory name, - meaning the current directory. You MUST NOT convert this to a dot; just - yield relative paths. So, yielding a subdirectory named ``some/dir`` under - the current directory should NOT be rendered as ``./some/dir`` or - ``/somewhere/some/dir``, but *always* as simply ``some/dir`` - -* Your finder function SHOULD NOT raise any errors, and SHOULD deal gracefully - with the absence of needed programs (i.e., ones belonging to the revision - control system itself. It *may*, however, use ``distutils.log.warn()`` to - inform the user of the missing program(s). - - -Subclassing ``Command`` ------------------------ - -Sorry, this section isn't written yet, and neither is a lot of what's below -this point, except for the change log. You might want to `subscribe to changes -in this page `_ to see when new documentation is -added or updated. - -XXX - - -Reusing ``setuptools`` Code -=========================== - -``distribute_setup`` --------------------- - -XXX - - -``setuptools.archive_util`` ---------------------------- - -XXX - - -``setuptools.sandbox`` ----------------------- - -XXX - - -``setuptools.package_index`` ----------------------------- - -XXX - -History -======= - -0.6c9 - * Fixed a missing files problem when using Windows source distributions on - non-Windows platforms, due to distutils not handling manifest file line - endings correctly. - - * Updated Pyrex support to work with Pyrex 0.9.6 and higher. - - * Minor changes for Jython compatibility, including skipping tests that can't - work on Jython. - - * Fixed not installing eggs in ``install_requires`` if they were also used for - ``setup_requires`` or ``tests_require``. - - * Fixed not fetching eggs in ``install_requires`` when running tests. - - * Allow ``ez_setup.use_setuptools()`` to upgrade existing setuptools - installations when called from a standalone ``setup.py``. - - * Added a warning if a namespace package is declared, but its parent package - is not also declared as a namespace. - - * Support Subversion 1.5 - - * Removed use of deprecated ``md5`` module if ``hashlib`` is available - - * Fixed ``bdist_wininst upload`` trying to upload the ``.exe`` twice - - * Fixed ``bdist_egg`` putting a ``native_libs.txt`` in the source package's - ``.egg-info``, when it should only be in the built egg's ``EGG-INFO``. - - * Ensure that _full_name is set on all shared libs before extensions are - checked for shared lib usage. (Fixes a bug in the experimental shared - library build support.) - - * Fix to allow unpacked eggs containing native libraries to fail more - gracefully under Google App Engine (with an ``ImportError`` loading the - C-based module, instead of getting a ``NameError``). - -0.6c7 - * Fixed ``distutils.filelist.findall()`` crashing on broken symlinks, and - ``egg_info`` command failing on new, uncommitted SVN directories. - - * Fix import problems with nested namespace packages installed via - ``--root`` or ``--single-version-externally-managed``, due to the - parent package not having the child package as an attribute. - -0.6c6 - * Added ``--egg-path`` option to ``develop`` command, allowing you to force - ``.egg-link`` files to use relative paths (allowing them to be shared across - platforms on a networked drive). - - * Fix not building binary RPMs correctly. - - * Fix "eggsecutables" (such as setuptools' own egg) only being runnable with - bash-compatible shells. - - * Fix ``#!`` parsing problems in Windows ``.exe`` script wrappers, when there - was whitespace inside a quoted argument or at the end of the ``#!`` line - (a regression introduced in 0.6c4). - - * Fix ``test`` command possibly failing if an older version of the project - being tested was installed on ``sys.path`` ahead of the test source - directory. - - * Fix ``find_packages()`` treating ``ez_setup`` and directories with ``.`` in - their names as packages. - -0.6c5 - * Fix uploaded ``bdist_rpm`` packages being described as ``bdist_egg`` - packages under Python versions less than 2.5. - - * Fix uploaded ``bdist_wininst`` packages being described as suitable for - "any" version by Python 2.5, even if a ``--target-version`` was specified. - -0.6c4 - * Overhauled Windows script wrapping to support ``bdist_wininst`` better. - Scripts installed with ``bdist_wininst`` will always use ``#!python.exe`` or - ``#!pythonw.exe`` as the executable name (even when built on non-Windows - platforms!), and the wrappers will look for the executable in the script's - parent directory (which should find the right version of Python). - - * Fix ``upload`` command not uploading files built by ``bdist_rpm`` or - ``bdist_wininst`` under Python 2.3 and 2.4. - - * Add support for "eggsecutable" headers: a ``#!/bin/sh`` script that is - prepended to an ``.egg`` file to allow it to be run as a script on Unix-ish - platforms. (This is mainly so that setuptools itself can have a single-file - installer on Unix, without doing multiple downloads, dealing with firewalls, - etc.) - - * Fix problem with empty revision numbers in Subversion 1.4 ``entries`` files - - * Use cross-platform relative paths in ``easy-install.pth`` when doing - ``develop`` and the source directory is a subdirectory of the installation - target directory. - - * Fix a problem installing eggs with a system packaging tool if the project - contained an implicit namespace package; for example if the ``setup()`` - listed a namespace package ``foo.bar`` without explicitly listing ``foo`` - as a namespace package. - -0.6c3 - * Fixed breakages caused by Subversion 1.4's new "working copy" format - -0.6c2 - * The ``ez_setup`` module displays the conflicting version of setuptools (and - its installation location) when a script requests a version that's not - available. - - * Running ``setup.py develop`` on a setuptools-using project will now install - setuptools if needed, instead of only downloading the egg. - -0.6c1 - * Fixed ``AttributeError`` when trying to download a ``setup_requires`` - dependency when a distribution lacks a ``dependency_links`` setting. - - * Made ``zip-safe`` and ``not-zip-safe`` flag files contain a single byte, so - as to play better with packaging tools that complain about zero-length - files. - - * Made ``setup.py develop`` respect the ``--no-deps`` option, which it - previously was ignoring. - - * Support ``extra_path`` option to ``setup()`` when ``install`` is run in - backward-compatibility mode. - - * Source distributions now always include a ``setup.cfg`` file that explicitly - sets ``egg_info`` options such that they produce an identical version number - to the source distribution's version number. (Previously, the default - version number could be different due to the use of ``--tag-date``, or if - the version was overridden on the command line that built the source - distribution.) - -0.6b4 - * Fix ``register`` not obeying name/version set by ``egg_info`` command, if - ``egg_info`` wasn't explicitly run first on the same command line. - - * Added ``--no-date`` and ``--no-svn-revision`` options to ``egg_info`` - command, to allow suppressing tags configured in ``setup.cfg``. - - * Fixed redundant warnings about missing ``README`` file(s); it should now - appear only if you are actually a source distribution. - -0.6b3 - * Fix ``bdist_egg`` not including files in subdirectories of ``.egg-info``. - - * Allow ``.py`` files found by the ``include_package_data`` option to be - automatically included. Remove duplicate data file matches if both - ``include_package_data`` and ``package_data`` are used to refer to the same - files. - -0.6b1 - * Strip ``module`` from the end of compiled extension modules when computing - the name of a ``.py`` loader/wrapper. (Python's import machinery ignores - this suffix when searching for an extension module.) - -0.6a11 - * Added ``test_loader`` keyword to support custom test loaders - - * Added ``setuptools.file_finders`` entry point group to allow implementing - revision control plugins. - - * Added ``--identity`` option to ``upload`` command. - - * Added ``dependency_links`` to allow specifying URLs for ``--find-links``. - - * Enhanced test loader to scan packages as well as modules, and call - ``additional_tests()`` if present to get non-unittest tests. - - * Support namespace packages in conjunction with system packagers, by omitting - the installation of any ``__init__.py`` files for namespace packages, and - adding a special ``.pth`` file to create a working package in - ``sys.modules``. - - * Made ``--single-version-externally-managed`` automatic when ``--root`` is - used, so that most system packagers won't require special support for - setuptools. - - * Fixed ``setup_requires``, ``tests_require``, etc. not using ``setup.cfg`` or - other configuration files for their option defaults when installing, and - also made the install use ``--multi-version`` mode so that the project - directory doesn't need to support .pth files. - - * ``MANIFEST.in`` is now forcibly closed when any errors occur while reading - it. Previously, the file could be left open and the actual error would be - masked by problems trying to remove the open file on Windows systems. - -0.6a10 - * Fixed the ``develop`` command ignoring ``--find-links``. - -0.6a9 - * The ``sdist`` command no longer uses the traditional ``MANIFEST`` file to - create source distributions. ``MANIFEST.in`` is still read and processed, - as are the standard defaults and pruning. But the manifest is built inside - the project's ``.egg-info`` directory as ``SOURCES.txt``, and it is rebuilt - every time the ``egg_info`` command is run. - - * Added the ``include_package_data`` keyword to ``setup()``, allowing you to - automatically include any package data listed in revision control or - ``MANIFEST.in`` - - * Added the ``exclude_package_data`` keyword to ``setup()``, allowing you to - trim back files included via the ``package_data`` and - ``include_package_data`` options. - - * Fixed ``--tag-svn-revision`` not working when run from a source - distribution. - - * Added warning for namespace packages with missing ``declare_namespace()`` - - * Added ``tests_require`` keyword to ``setup()``, so that e.g. packages - requiring ``nose`` to run unit tests can make this dependency optional - unless the ``test`` command is run. - - * Made all commands that use ``easy_install`` respect its configuration - options, as this was causing some problems with ``setup.py install``. - - * Added an ``unpack_directory()`` driver to ``setuptools.archive_util``, so - that you can process a directory tree through a processing filter as if it - were a zipfile or tarfile. - - * Added an internal ``install_egg_info`` command to use as part of old-style - ``install`` operations, that installs an ``.egg-info`` directory with the - package. - - * Added a ``--single-version-externally-managed`` option to the ``install`` - command so that you can more easily wrap a "flat" egg in a system package. - - * Enhanced ``bdist_rpm`` so that it installs single-version eggs that - don't rely on a ``.pth`` file. The ``--no-egg`` option has been removed, - since all RPMs are now built in a more backwards-compatible format. - - * Support full roundtrip translation of eggs to and from ``bdist_wininst`` - format. Running ``bdist_wininst`` on a setuptools-based package wraps the - egg in an .exe that will safely install it as an egg (i.e., with metadata - and entry-point wrapper scripts), and ``easy_install`` can turn the .exe - back into an ``.egg`` file or directory and install it as such. - - -0.6a8 - * Fixed some problems building extensions when Pyrex was installed, especially - with Python 2.4 and/or packages using SWIG. - - * Made ``develop`` command accept all the same options as ``easy_install``, - and use the ``easy_install`` command's configuration settings as defaults. - - * Made ``egg_info --tag-svn-revision`` fall back to extracting the revision - number from ``PKG-INFO`` in case it is being run on a source distribution of - a snapshot taken from a Subversion-based project. - - * Automatically detect ``.dll``, ``.so`` and ``.dylib`` files that are being - installed as data, adding them to ``native_libs.txt`` automatically. - - * Fixed some problems with fresh checkouts of projects that don't include - ``.egg-info/PKG-INFO`` under revision control and put the project's source - code directly in the project directory. If such a package had any - requirements that get processed before the ``egg_info`` command can be run, - the setup scripts would fail with a "Missing 'Version:' header and/or - PKG-INFO file" error, because the egg runtime interpreted the unbuilt - metadata in a directory on ``sys.path`` (i.e. the current directory) as - being a corrupted egg. Setuptools now monkeypatches the distribution - metadata cache to pretend that the egg has valid version information, until - it has a chance to make it actually be so (via the ``egg_info`` command). - -0.6a5 - * Fixed missing gui/cli .exe files in distribution. Fixed bugs in tests. - -0.6a3 - * Added ``gui_scripts`` entry point group to allow installing GUI scripts - on Windows and other platforms. (The special handling is only for Windows; - other platforms are treated the same as for ``console_scripts``.) - -0.6a2 - * Added ``console_scripts`` entry point group to allow installing scripts - without the need to create separate script files. On Windows, console - scripts get an ``.exe`` wrapper so you can just type their name. On other - platforms, the scripts are written without a file extension. - -0.6a1 - * Added support for building "old-style" RPMs that don't install an egg for - the target package, using a ``--no-egg`` option. - - * The ``build_ext`` command now works better when using the ``--inplace`` - option and multiple Python versions. It now makes sure that all extensions - match the current Python version, even if newer copies were built for a - different Python version. - - * The ``upload`` command no longer attaches an extra ``.zip`` when uploading - eggs, as PyPI now supports egg uploads without trickery. - - * The ``ez_setup`` script/module now displays a warning before downloading - the setuptools egg, and attempts to check the downloaded egg against an - internal MD5 checksum table. - - * Fixed the ``--tag-svn-revision`` option of ``egg_info`` not finding the - latest revision number; it was using the revision number of the directory - containing ``setup.py``, not the highest revision number in the project. - - * Added ``eager_resources`` setup argument - - * The ``sdist`` command now recognizes Subversion "deleted file" entries and - does not include them in source distributions. - - * ``setuptools`` now embeds itself more thoroughly into the distutils, so that - other distutils extensions (e.g. py2exe, py2app) will subclass setuptools' - versions of things, rather than the native distutils ones. - - * Added ``entry_points`` and ``setup_requires`` arguments to ``setup()``; - ``setup_requires`` allows you to automatically find and download packages - that are needed in order to *build* your project (as opposed to running it). - - * ``setuptools`` now finds its commands, ``setup()`` argument validators, and - metadata writers using entry points, so that they can be extended by - third-party packages. See `Creating distutils Extensions`_ above for more - details. - - * The vestigial ``depends`` command has been removed. It was never finished - or documented, and never would have worked without EasyInstall - which it - pre-dated and was never compatible with. - -0.5a12 - * The zip-safety scanner now checks for modules that might be used with - ``python -m``, and marks them as unsafe for zipping, since Python 2.4 can't - handle ``-m`` on zipped modules. - -0.5a11 - * Fix breakage of the "develop" command that was caused by the addition of - ``--always-unzip`` to the ``easy_install`` command. - -0.5a9 - * Include ``svn:externals`` directories in source distributions as well as - normal subversion-controlled files and directories. - - * Added ``exclude=patternlist`` option to ``setuptools.find_packages()`` - - * Changed --tag-svn-revision to include an "r" in front of the revision number - for better readability. - - * Added ability to build eggs without including source files (except for any - scripts, of course), using the ``--exclude-source-files`` option to - ``bdist_egg``. - - * ``setup.py install`` now automatically detects when an "unmanaged" package - or module is going to be on ``sys.path`` ahead of a package being installed, - thereby preventing the newer version from being imported. If this occurs, - a warning message is output to ``sys.stderr``, but installation proceeds - anyway. The warning message informs the user what files or directories - need deleting, and advises them they can also use EasyInstall (with the - ``--delete-conflicting`` option) to do it automatically. - - * The ``egg_info`` command now adds a ``top_level.txt`` file to the metadata - directory that lists all top-level modules and packages in the distribution. - This is used by the ``easy_install`` command to find possibly-conflicting - "unmanaged" packages when installing the distribution. - - * Added ``zip_safe`` and ``namespace_packages`` arguments to ``setup()``. - Added package analysis to determine zip-safety if the ``zip_safe`` flag - is not given, and advise the author regarding what code might need changing. - - * Fixed the swapped ``-d`` and ``-b`` options of ``bdist_egg``. - -0.5a8 - * The "egg_info" command now always sets the distribution metadata to "safe" - forms of the distribution name and version, so that distribution files will - be generated with parseable names (i.e., ones that don't include '-' in the - name or version). Also, this means that if you use the various ``--tag`` - options of "egg_info", any distributions generated will use the tags in the - version, not just egg distributions. - - * Added support for defining command aliases in distutils configuration files, - under the "[aliases]" section. To prevent recursion and to allow aliases to - call the command of the same name, a given alias can be expanded only once - per command-line invocation. You can define new aliases with the "alias" - command, either for the local, global, or per-user configuration. - - * Added "rotate" command to delete old distribution files, given a set of - patterns to match and the number of files to keep. (Keeps the most - recently-modified distribution files matching each pattern.) - - * Added "saveopts" command that saves all command-line options for the current - invocation to the local, global, or per-user configuration file. Useful for - setting defaults without having to hand-edit a configuration file. - - * Added a "setopt" command that sets a single option in a specified distutils - configuration file. - -0.5a7 - * Added "upload" support for egg and source distributions, including a bug - fix for "upload" and a temporary workaround for lack of .egg support in - PyPI. - -0.5a6 - * Beefed up the "sdist" command so that if you don't have a MANIFEST.in, it - will include all files under revision control (CVS or Subversion) in the - current directory, and it will regenerate the list every time you create a - source distribution, not just when you tell it to. This should make the - default "do what you mean" more often than the distutils' default behavior - did, while still retaining the old behavior in the presence of MANIFEST.in. - - * Fixed the "develop" command always updating .pth files, even if you - specified ``-n`` or ``--dry-run``. - - * Slightly changed the format of the generated version when you use - ``--tag-build`` on the "egg_info" command, so that you can make tagged - revisions compare *lower* than the version specified in setup.py (e.g. by - using ``--tag-build=dev``). - -0.5a5 - * Added ``develop`` command to ``setuptools``-based packages. This command - installs an ``.egg-link`` pointing to the package's source directory, and - script wrappers that ``execfile()`` the source versions of the package's - scripts. This lets you put your development checkout(s) on sys.path without - having to actually install them. (To uninstall the link, use - use ``setup.py develop --uninstall``.) - - * Added ``egg_info`` command to ``setuptools``-based packages. This command - just creates or updates the "projectname.egg-info" directory, without - building an egg. (It's used by the ``bdist_egg``, ``test``, and ``develop`` - commands.) - - * Enhanced the ``test`` command so that it doesn't install the package, but - instead builds any C extensions in-place, updates the ``.egg-info`` - metadata, adds the source directory to ``sys.path``, and runs the tests - directly on the source. This avoids an "unmanaged" installation of the - package to ``site-packages`` or elsewhere. - - * Made ``easy_install`` a standard ``setuptools`` command, moving it from - the ``easy_install`` module to ``setuptools.command.easy_install``. Note - that if you were importing or extending it, you must now change your imports - accordingly. ``easy_install.py`` is still installed as a script, but not as - a module. - -0.5a4 - * Setup scripts using setuptools can now list their dependencies directly in - the setup.py file, without having to manually create a ``depends.txt`` file. - The ``install_requires`` and ``extras_require`` arguments to ``setup()`` - are used to create a dependencies file automatically. If you are manually - creating ``depends.txt`` right now, please switch to using these setup - arguments as soon as practical, because ``depends.txt`` support will be - removed in the 0.6 release cycle. For documentation on the new arguments, - see the ``setuptools.dist.Distribution`` class. - - * Setup scripts using setuptools now always install using ``easy_install`` - internally, for ease of uninstallation and upgrading. - -0.5a1 - * Added support for "self-installation" bootstrapping. Packages can now - include ``ez_setup.py`` in their source distribution, and add the following - to their ``setup.py``, in order to automatically bootstrap installation of - setuptools as part of their setup process:: - - from ez_setup import use_setuptools - use_setuptools() - - from setuptools import setup - # etc... - -0.4a2 - * Added ``ez_setup.py`` installer/bootstrap script to make initial setuptools - installation easier, and to allow distributions using setuptools to avoid - having to include setuptools in their source distribution. - - * All downloads are now managed by the ``PackageIndex`` class (which is now - subclassable and replaceable), so that embedders can more easily override - download logic, give download progress reports, etc. The class has also - been moved to the new ``setuptools.package_index`` module. - - * The ``Installer`` class no longer handles downloading, manages a temporary - directory, or tracks the ``zip_ok`` option. Downloading is now handled - by ``PackageIndex``, and ``Installer`` has become an ``easy_install`` - command class based on ``setuptools.Command``. - - * There is a new ``setuptools.sandbox.run_setup()`` API to invoke a setup - script in a directory sandbox, and a new ``setuptools.archive_util`` module - with an ``unpack_archive()`` API. These were split out of EasyInstall to - allow reuse by other tools and applications. - - * ``setuptools.Command`` now supports reinitializing commands using keyword - arguments to set/reset options. Also, ``Command`` subclasses can now set - their ``command_consumes_arguments`` attribute to ``True`` in order to - receive an ``args`` option containing the rest of the command line. - -0.3a2 - * Added new options to ``bdist_egg`` to allow tagging the egg's version number - with a subversion revision number, the current date, or an explicit tag - value. Run ``setup.py bdist_egg --help`` to get more information. - - * Misc. bug fixes - -0.3a1 - * Initial release. - -Mailing List and Bug Tracker -============================ - -Please use the `distutils-sig mailing list`_ for questions and discussion about -setuptools, and the `setuptools bug tracker`_ ONLY for issues you have -confirmed via the list are actual bugs, and which you have reduced to a minimal -set of steps to reproduce. - -.. _distutils-sig mailing list: http://mail.python.org/pipermail/distutils-sig/ -.. _setuptools bug tracker: http://bugs.python.org/setuptools/ - diff --git a/docs/userguide/datafiles.rst b/docs/userguide/datafiles.rst new file mode 100644 index 0000000000..72a658ee9c --- /dev/null +++ b/docs/userguide/datafiles.rst @@ -0,0 +1,649 @@ +==================== +Data Files Support +==================== + +In the Python ecosystem, the term "data files" is used in various complex scenarios +and can have nuanced meanings. For the purposes of this documentation, +we define "data files" as non-Python files that are installed alongside Python +modules and packages on the user's machine when they install a +:term:`distribution ` via :term:`wheel `. + +These files are typically intended for use at **runtime** by the package itself or +to influence the behavior of other packages or systems. + +Old packaging installation methods in the Python ecosystem +have traditionally allowed installation of "data files", which +are placed in a platform-specific location. However, the most common use case +for data files distributed with a package is for use *by* the package, usually +by including the data files **inside the package directory**. + +Setuptools focuses on this most common type of data files and offers three ways +of specifying which files should be included in your packages, as described in +the following section. + + +Configuration Options +===================== + + +.. _include-package-data: + +1. ``include_package_data`` +--------------------------- + +First, you can use the ``include_package_data`` keyword. + +For example, if the package tree looks like this:: + + project_root_directory + ├── setup.py # and/or setup.cfg, pyproject.toml + └── src + └── mypkg + ├── __init__.py + ├── data1.rst + ├── data2.rst + ├── data1.txt + └── data2.txt + +When **at least one** of the following conditions are met: + +1. These files are included via the :ref:`MANIFEST.in ` file, + like so:: + + include src/mypkg/*.txt + include src/mypkg/*.rst + +2. They are being tracked by a revision control system such as Git, Mercurial + or SVN, **AND** you have configured an appropriate plugin such as + :pypi:`setuptools-scm` or :pypi:`setuptools-svn`. + (See the section below on :ref:`Adding Support for Revision + Control Systems` for information on how to configure such plugins.) + +then all the ``.txt`` and ``.rst`` files will be included into +the source distribution. + +To further include them into the ``wheels``, you can use the +``include_package_data`` keyword: + +.. tab:: pyproject.toml + + .. code-block:: toml + + [tool.setuptools] + # ... + # By default, include-package-data is true in pyproject.toml, + # so you do NOT have to specify this line. + include-package-data = true + + [tool.setuptools.packages.find] + where = ["src"] + +.. tab:: setup.cfg + + .. code-block:: ini + + [options] + # ... + packages = find: + package_dir = + = src + include_package_data = True + + [options.packages.find] + where = src + +.. tab:: setup.py + + .. code-block:: python + + from setuptools import setup, find_packages + setup( + # ..., + packages=find_packages(where="src"), + package_dir={"": "src"}, + include_package_data=True + ) + +.. note:: + .. versionadded:: v61.0.0 + The default value for ``tool.setuptools.include-package-data`` is ``true`` + when projects are configured via ``pyproject.toml``. + This behaviour differs from ``setup.cfg`` and ``setup.py`` + (where ``include_package_data`` is ``False`` by default), which was not changed + to ensure backwards compatibility with existing projects. + +.. _package-data: + +2. ``package_data`` +------------------- + +By default, ``include_package_data`` considers **all** non ``.py`` files found inside +the package directory (``src/mypkg`` in this case) as data files, and includes those that +satisfy (at least) one of the above two conditions into the source distribution, and +consequently in the installation of your package. +If you want finer-grained control over what files are included, then you can also use +the ``package_data`` keyword. +For example, if the package tree looks like this:: + + project_root_directory + ├── setup.py # and/or setup.cfg, pyproject.toml + └── src + └── mypkg + ├── __init__.py + ├── data1.rst + ├── data2.rst + ├── data1.txt + └── data2.txt + +then you can use the following configuration to capture the ``.txt`` and ``.rst`` files as +data files: + +.. tab:: pyproject.toml + + .. code-block:: toml + + [tool.setuptools.packages.find] + where = ["src"] + + [tool.setuptools.package-data] + mypkg = ["*.txt", "*.rst"] + +.. tab:: setup.cfg + + .. code-block:: ini + + [options] + # ... + packages = find: + package_dir = + = src + + [options.packages.find] + where = src + + [options.package_data] + mypkg = + *.txt + *.rst + +.. tab:: setup.py + + .. code-block:: python + + from setuptools import setup, find_packages + setup( + # ..., + packages=find_packages(where="src"), + package_dir={"": "src"}, + package_data={"mypkg": ["*.txt", "*.rst"]} + ) + +The ``package_data`` argument is a dictionary that maps from package names to +lists of glob patterns. Note that the data files specified using the ``package_data`` +option neither require to be included within a :ref:`MANIFEST.in ` +file, nor require to be added by a revision control system plugin. + +.. note:: + If your glob patterns use paths, you *must* use a forward slash (``/``) as + the path separator, even if you are on Windows. ``setuptools`` automatically + converts slashes to appropriate platform-specific separators at build time. + +.. important:: + Glob patterns do not automatically match dotfiles, i.e., directory or file names + starting with a dot (``.``). To include such files, you must explicitly start + the pattern with a dot, e.g. ``.*`` to match ``.gitignore``. + +If you have multiple top-level packages and a common pattern of data files for all these +packages, for example:: + + project_root_directory + ├── setup.py # and/or setup.cfg, pyproject.toml + └── src + ├── mypkg1 + │   ├── data1.rst + │   ├── data1.txt + │   └── __init__.py + └── mypkg2 + ├── data2.txt + └── __init__.py + +Here, both packages ``mypkg1`` and ``mypkg2`` share a common pattern of having ``.txt`` +data files. However, only ``mypkg1`` has ``.rst`` data files. In such a case, if you want to +use the ``package_data`` option, the following configuration will work: + +.. tab:: pyproject.toml + + .. code-block:: toml + + [tool.setuptools.packages.find] + where = ["src"] + + [tool.setuptools.package-data] + "*" = ["*.txt"] + mypkg1 = ["data1.rst"] + +.. tab:: setup.cfg + + .. code-block:: ini + + [options] + packages = find: + package_dir = + = src + + [options.packages.find] + where = src + + [options.package_data] + * = + *.txt + mypkg1 = + data1.rst + +.. tab:: setup.py + + .. code-block:: python + + from setuptools import setup, find_packages + setup( + # ..., + packages=find_packages(where="src"), + package_dir={"": "src"}, + package_data={"": ["*.txt"], "mypkg1": ["data1.rst"]}, + ) + +Notice that if you list patterns in ``package_data`` under the empty string ``""`` in +``setup.py``, and the asterisk ``*`` in ``setup.cfg`` and ``pyproject.toml``, these +patterns are used to find files in every package. For example, we use ``""`` or ``*`` +to indicate that the ``.txt`` files from all packages should be captured as data files. +These placeholders are treated as a special case, ``setuptools`` **do not** +support glob patterns on package names for this configuration +(patterns are only supported on the file paths). +Also note how we can continue to specify patterns for individual packages, i.e. +we specify that ``data1.rst`` from ``mypkg1`` alone should be captured as well. + +.. note:: + When building an ``sdist``, the data files are also drawn from the + ``package_name.egg-info/SOURCES.txt`` file which works as a form of cache. + So make sure that this file is removed if ``package_data`` is updated, + before re-building the package. + +.. attention:: + In Python any directory is considered a package + (even if it does not contain ``__init__.py``, + see *native namespaces packages* on :doc:`PyPUG:guides/packaging-namespace-packages`). + Therefore, if you are not relying on :doc:`automatic discovery `, + you *SHOULD* ensure that **all** packages (including the ones that don't + contain any Python files) are included in the ``packages`` configuration + (see :doc:`/userguide/package_discovery` for more information). + + Moreover, it is advisable to use full packages name using the dot + notation instead of a nested path, to avoid error prone configurations. + Please check :ref:`section subdirectories ` below. + + +.. _exclude-package-data: + +3. ``exclude_package_data`` +--------------------------- + +Sometimes, the ``include_package_data`` or ``package_data`` options alone +aren't sufficient to precisely define what files you want included. For example, +consider a scenario where you have ``include_package_data=True``, and you are using +a revision control system with an appropriate plugin. +Sometimes developers add directory-specific marker files (such as ``.gitignore``, +``.gitkeep``, ``.gitattributes``, or ``.hgignore``), these files are probably being +tracked by the revision control system, and therefore by default they will be +included when the package is installed. + +Supposing you want to prevent these files from being included in the +installation (they are not relevant to Python or the package), then you could +use the ``exclude_package_data`` option: + +.. tab:: pyproject.toml + + .. code-block:: toml + + [tool.setuptools.packages.find] + where = ["src"] + + [tool.setuptools.exclude-package-data] + mypkg = [".gitattributes"] + +.. tab:: setup.cfg + + .. code-block:: ini + + [options] + # ... + packages = find: + package_dir = + = src + include_package_data = True + + [options.packages.find] + where = src + + [options.exclude_package_data] + mypkg = + .gitattributes + +.. tab:: setup.py + + .. code-block:: python + + from setuptools import setup, find_packages + setup( + # ..., + packages=find_packages(where="src"), + package_dir={"": "src"}, + include_package_data=True, + exclude_package_data={"mypkg": [".gitattributes"]}, + ) + +The ``exclude_package_data`` option is a dictionary mapping package names to +lists of wildcard patterns, just like the ``package_data`` option. And, just +as with that option, you can use the empty string key ``""`` in ``setup.py`` and the +asterisk ``*`` in ``setup.cfg`` and ``pyproject.toml`` to match all top-level packages. + +Any files that match these patterns will be *excluded* from installation, +even if they were listed in ``package_data`` or were included as a result of using +``include_package_data``. + +.. _interplay_package_data_keywords: + +Interplay between these keywords +-------------------------------- + +Meanwhile, to further clarify the interplay between these three keywords, +to include certain data file into the source distribution, the following +logic condition has to be met:: + + MANIFEST.in or (package-data and not exclude-package-data) + +In plain language, the file should be either: + +1. included in ``MANIFEST.in``; or + +2. selected by ``package-data`` AND not excluded by ``exclude-package-data``. + +To include some data file into the ``.whl``:: + + (not exclude-package-data) and ((include-package-data and MANIFEST.in) or package-data) + +In other words, the file should not be excluded by ``exclude-package-data`` +(highest priority), AND should be either: + +1. selected by ``package-data``; or + +2. selected by ``MANIFEST.in`` AND use ``include-package-data = true``. + +Summary +------- + +In summary, the three options allow you to: + +``include_package_data`` + Accept all data files and directories matched by + :ref:`MANIFEST.in ` or added by + a :ref:`plugin `. + +``package_data`` + Specify additional patterns to match files that may or may + not be matched by :ref:`MANIFEST.in ` + or added by a :ref:`plugin `. + +``exclude_package_data`` + Specify patterns for data files and directories that should *not* be + included when a package is installed, even if they would otherwise have + been included due to the use of the preceding options. + +.. note:: + Due to the way the build process works, a data file that you + include in your project and then stop including may be "orphaned" in your + project's build directories, requiring you to manually deleting them. + This may also be important for your users and contributors + if they track intermediate revisions of your project using Subversion; be sure + to let them know when you make changes that remove files from inclusion so they + can also manually delete them. + + See also troubleshooting information in :ref:`Caching and Troubleshooting`. + + +.. _subdir-data-files: + +Subdirectory for Data Files +=========================== + +A common pattern is where some (or all) of the data files are placed under +a separate subdirectory. For example:: + + project_root_directory + ├── setup.py # and/or setup.cfg, pyproject.toml + └── src + └── mypkg + ├── data + │   ├── data1.rst + │   └── data2.rst + ├── __init__.py + ├── data1.txt + └── data2.txt + +Here, the ``.rst`` files are placed under a ``data`` subdirectory inside ``mypkg``, +while the ``.txt`` files are directly under ``mypkg``. + +In this case, the recommended approach is to treat ``data`` as a namespace package +(refer :pep:`420`). This way, you can rely on the same methods described above, +using either :ref:`package-data` or :ref:`include-package-data`. +For the sake of completeness, we include below configuration examples +for the subdirectory structure, but please refer to the detailed +information in the previous sections of this document. + +With :ref:`package-data`, the configuration might look like this: + +.. tab:: pyproject.toml + + .. code-block:: toml + + # Scanning for namespace packages in the ``src`` directory is true by + # default in pyproject.toml, so you do NOT need to include the + # `tool.setuptools.packages.find` if it looks like the following: + # [tool.setuptools.packages.find] + # namespaces = true + # where = ["src"] + + [tool.setuptools.package-data] + mypkg = ["*.txt"] + "mypkg.data" = ["*.rst"] + +.. tab:: setup.cfg + + .. code-block:: ini + + [options] + # ... + packages = find_namespace: + package_dir = + = src + + [options.packages.find] + where = src + + [options.package_data] + mypkg = + *.txt + mypkg.data = + *.rst + +.. tab:: setup.py + + .. code-block:: python + + from setuptools import setup, find_namespace_packages + setup( + # ..., + packages=find_namespace_packages(where="src"), + package_dir={"": "src"}, + package_data={ + "mypkg": ["*.txt"], + "mypkg.data": ["*.rst"], + } + ) + +In other words, we allow ``setuptools`` to scan for namespace packages in the ``src`` directory, +which enables the ``data`` directory to be identified, and then, we separately specify data +files for the root package ``mypkg``, and the namespace package ``data`` under the package +``mypkg``. + +Alternatively, you can also rely on :ref:`include-package-data`. +Note that this is the default behaviour in ``pyproject.toml``, but you need to +manually enable scanning of namespace packages in ``setup.cfg`` or ``setup.py``: + +.. tab:: pyproject.toml + + .. code-block:: toml + + [tool.setuptools] + # ... + # By default, include-package-data is true in pyproject.toml, so you do + # NOT have to specify this line. + include-package-data = true + + [tool.setuptools.packages.find] + # scanning for namespace packages is true by default in pyproject.toml, so + # you need NOT include this configuration. + namespaces = true + where = ["src"] + +.. tab:: setup.cfg + + .. code-block:: ini + + [options] + packages = find_namespace: + package_dir = + = src + include_package_data = True + + [options.packages.find] + where = src + +.. tab:: setup.py + + .. code-block:: python + + from setuptools import setup, find_namespace_packages + setup( + # ... , + packages=find_namespace_packages(where="src"), + package_dir={"": "src"}, + include_package_data=True, + ) + +To avoid common mistakes with :ref:`include-package-data`, +please ensure :ref:`MANIFEST.in ` is properly set +or use a revision control system plugin (see :doc:`/userguide/miscellaneous`). + + +.. _Accessing Data Files at Runtime: + +Accessing Data Files at Runtime +=============================== + +Typically, existing programs manipulate a package's ``__file__`` attribute in +order to find the location of data files. For example, if you have a structure +like this:: + + project_root_directory + ├── setup.py # and/or setup.cfg, pyproject.toml + └── src + └── mypkg + ├── data + │   └── data1.txt + ├── __init__.py + └── foo.py + +Then, in ``mypkg/foo.py``, you may try something like this in order to access +``mypkg/data/data1.txt``: + +.. code-block:: python + + import os + data_path = os.path.join(os.path.dirname(__file__), 'data', 'data1.txt') + with open(data_path, 'r') as data_file: + ... + +However, this manipulation isn't compatible with :pep:`302`-based import hooks, +including importing from zip files and Python Eggs. It is strongly recommended that, +if you are using data files, you should use :mod:`importlib.resources` to access them. +In this case, you would do something like this: + +.. code-block:: python + + from importlib.resources import files + data_text = files('mypkg.data').joinpath('data1.txt').read_text() + +:mod:`importlib.resources` was added to Python 3.7. However, the API illustrated in +this code (using ``files()``) was added only in Python 3.9, [#files_api]_ and support +for accessing data files via namespace packages was added only in Python 3.10 [#namespace_support]_ +(the ``data`` subdirectory is a namespace package under the root package ``mypkg``). +Therefore, you may find this code to work only in Python 3.10 (and above). For other +versions of Python, you are recommended to use the :pypi:`importlib-resources` backport +which provides the latest version of this library. In this case, the only change that +has to be made to the above code is to replace ``importlib.resources`` with ``importlib_resources``, i.e. + +.. code-block:: python + + from importlib_resources import files + ... + +See :doc:`importlib-resources:using` for detailed instructions. + +.. tip:: Files inside the package directory should be *read-only* to avoid a + series of common problems (e.g. when multiple users share a common Python + installation, when the package is loaded from a zip file, or when multiple + instances of a Python application run in parallel). + + If your Python package needs to write to a file for shared data or configuration, + you can use standard platform/OS-specific system directories, such as + ``~/.local/config/$appname`` or ``/usr/share/$appname/$version`` (Linux specific) [#system-dirs]_. + A common approach is to add a read-only template file to the package + directory that is then copied to the correct system directory if no + pre-existing file is found. + + +Data Files from Plugins and Extensions +====================================== + +You can resort to a :doc:`native/implicit namespace package +` (as a container for files) +if you want plugins and extensions to your package to contribute with package data files. +This way, all files will be listed during runtime +when :doc:`using importlib.resources `. +Note that, although not strictly guaranteed, mainstream Python package managers, +like :pypi:`pip` and derived tools, will install files belong to multiple distributions +that share a same namespace into the same directory in the file system. +This means that the overhead for :mod:`importlib.resources` will be minimum. + + +Non-Package Data Files +====================== + +Historically, ``setuptools`` by way of ``easy_install`` would encapsulate data +files from the distribution into the egg (see `the old docs +`_). As eggs are deprecated and pip-based installs +fall back to the platform-specific location for installing data files, there is +no supported facility to reliably retrieve these resources. + +Instead, the PyPA recommends that any data files you wish to be accessible at +run time be included **inside the package**. + + +---- + +.. [#system-dirs] These locations can be discovered with the help of + third-party libraries such as :pypi:`platformdirs`. + +.. [#files_api] Reference: https://importlib-resources.readthedocs.io/en/latest/using.html#migrating-from-legacy + +.. [#namespace_support] Reference: https://github.com/python/importlib_resources/pull/196#issuecomment-734520374 diff --git a/docs/userguide/declarative_config.rst b/docs/userguide/declarative_config.rst new file mode 100644 index 0000000000..2f650e1746 --- /dev/null +++ b/docs/userguide/declarative_config.rst @@ -0,0 +1,354 @@ +.. _declarative config: + +------------------------------------------------ +Configuring setuptools using ``setup.cfg`` files +------------------------------------------------ + +.. note:: New in 30.3.0 (8 Dec 2016). + +.. important:: + If compatibility with legacy builds (i.e. those not using the :pep:`517` + build API) is desired, a ``setup.py`` file containing a ``setup()`` function + call is still required even if your configuration resides in ``setup.cfg``. + +``Setuptools`` allows using configuration files (for example, :file:`setup.cfg`) +to define a package’s metadata and other options (declarative config). + +This approach allows automation scenarios and can reduce boilerplate code. + +.. _example-setup-config: + +.. code-block:: ini + + [metadata] + name = my_package + version = attr: my_package.VERSION + author = Josiah Carberry + author_email = josiah_carberry@brown.edu + description = My package description + long_description = file: README.rst, CHANGELOG.rst, LICENSE.rst + keywords = one, two + license = BSD-3-Clause + classifiers = + Framework :: Django + Programming Language :: Python :: 3 + + [options] + zip_safe = False + include_package_data = True + packages = find: + python_requires = >=3.8 + install_requires = + requests + importlib-metadata; python_version<"3.10" + + [options.package_data] + * = *.txt, *.rst + hello = *.msg + + [options.entry_points] + console_scripts = + executable-name = my_package.module:function + + [options.extras_require] + pdf = ReportLab>=1.2; RXP + rest = docutils>=0.3; pack ==1.1, ==1.3 + + [options.packages.find] + exclude = + examples* + tools* + docs* + my_package.tests* + +Metadata and options are set in the config sections of the same name. + +* Keys are the same as the :doc:`keyword arguments ` one + provides to the ``setup()`` function. + +* Complex values can be written comma-separated or placed one per line + in *dangling* config values. The following are equivalent: + + .. code-block:: ini + + [metadata] + keywords = one, two + + [metadata] + keywords = + one + two + +* In some cases, complex values can be provided in dedicated subsections for + clarity. + +* Some keys allow ``file:``, ``attr:``, ``find:``, and ``find_namespace:`` directives in + order to cover common usecases. + +* Unknown keys are ignored. + + +Using a ``src/`` layout +======================= + +One commonly used configuration has all the Python source code in a +subdirectory (often called the ``src/`` layout), like this:: + + ├── src + │   └── mypackage + │   ├── __init__.py + │   └── mod1.py + ├── setup.py + └── setup.cfg + +You can set up your ``setup.cfg`` to automatically find all your packages in +the subdirectory, using :ref:`package_dir `, like this: + +.. code-block:: ini + + # This example contains just the necessary options for a src-layout, set up + # the rest of the file as described above. + + [options] + package_dir= + =src + packages=find: + + [options.packages.find] + where=src + +In this example, the value for the :ref:`package_dir ` +configuration (i.e. ``=src``) is parsed as ``{"": "src"}``. +The ``""`` key has a special meaning in this context, and indicates that all the +packages are contained inside the given directory. +Also note that the value for ``[options.packages.find] where`` matches the +value associated with ``""`` in the ``package_dir`` dictionary. + +.. + TODO: Add the following tip once the auto-discovery is no longer experimental: + + Starting in version 61, ``setuptools`` can automatically infer the + configurations for both ``packages`` and ``package_dir`` for projects using + a ``src/`` layout (as long as no value is specified for ``py_modules``). + Please see :doc:`package discovery ` for more + details. + +Interpolation +============= + +Config files are parsed using :mod:`configparser` with +`interpolation `_ +enabled. As a result, one config value may reference another. This +feature may be used, for example, in defining extras: + +.. code-block:: ini + + [options.extras_require] + tester = + pytest==3.3.2 + pytest-sugar + dev = + pytest-xdist + %(tester)s + +Specifying values +================= + +Some values are treated as simple strings, some allow more logic. + +Type names used below: + +* ``str`` - simple string +* ``list-comma`` - dangling list or string of comma-separated values +* ``list-semi`` - dangling list or string of semicolon-separated values +* ``bool`` - ``True`` is 1, yes, true +* ``dict`` - list-comma where each entry corresponds to a key/value pair, + with keys separated from values by ``=``. + If an entry starts with ``=``, the key is assumed to be an empty string + (e.g. ``=src`` is parsed as ``{"": "src"}``). +* ``section`` - values are read from a dedicated (sub)section + + +Special directives: + +* ``attr:`` - Value is read from a module attribute. + + It is advisable to use literal values together with ``attr:`` (e.g. ``str``, + ``tuple[str]``, see :func:`ast.literal_eval`). This is recommend + in order to support the common case of a literal value assigned to a variable + in a module containing (directly or indirectly) third-party imports. + + ``attr:`` first tries to read the value from the module by examining the + module's AST. If that fails, ``attr:`` falls back to importing the module, + using :func:`importlib.util.spec_from_file_location` recommended recipe + (see :ref:`example on Python docs ` + about "Importing a source file directly"). + Note however that importing the module is error prone since your package is + not installed yet. You may also need to manually add the project directory to + ``sys.path`` (via ``setup.py``) in order to be able to do that. + + When the module is imported, ``attr:`` supports + callables and iterables; unsupported types are cast using ``str()``. + + +* ``file:`` - Value is read from a list of files and then concatenated + + .. important:: + The ``file:`` directive is sandboxed and won't reach anything outside the + project directory (i.e. the directory containing ``setup.cfg``/``pyproject.toml``). + + .. note:: + If you are using an old version of ``setuptools``, you might need to ensure + that all files referenced by the ``file:`` directive are included in the ``sdist`` + (you can do that via ``MANIFEST.in`` or using plugins such as ``setuptools-scm``, + please have a look on :doc:`/userguide/miscellaneous` for more information). + + .. versionchanged:: 66.1.0 + Newer versions of ``setuptools`` will automatically add these files to the ``sdist``. + + +Metadata +-------- + +.. attention:: + The aliases given below are supported for compatibility reasons, + but their use is not advised. + +============================== ================= ================= =============== ========== +Key Aliases Type Minimum Version Notes +============================== ================= ================= =============== ========== +name str +version attr:, file:, str 39.2.0 [#meta-1]_ +url home-page str +download_url download-url str +project_urls dict 38.3.0 +author str +author_email author-email str +maintainer str +maintainer_email maintainer-email str +classifiers classifier file:, list-comma +license str +license_files license_file list-comma 42.0.0 +description summary file:, str +long_description long-description file:, str +long_description_content_type str 38.6.0 +keywords list-comma +platforms platform list-comma +provides list-comma +requires list-comma +obsoletes list-comma +============================== ================= ================= =============== ========== + +**Notes**: + +.. [#meta-1] The ``version`` file attribute has only been supported since 39.2.0. + + A version loaded using the ``file:`` directive must comply with PEP 440. + It is easy to accidentally put something other than a valid version + string in such a file, so validation is stricter in this case. + + +Options +------- + +======================= =================================== =============== ==================== +Key Type Minimum Version Notes +======================= =================================== =============== ==================== +zip_safe bool +setup_requires list-semi 36.7.0 +install_requires file:, list-semi **BETA** [#opt-2]_, [#opt-6]_ +extras_require file:, section **BETA** [#opt-2]_, [#opt-6]_ +python_requires str 34.4.0 +entry_points file:, section 51.0.0 +scripts list-comma +eager_resources list-comma +dependency_links list-comma +tests_require list-semi +include_package_data bool +packages find:, find_namespace:, list-comma [#opt-3]_ +package_dir dict +package_data section [#opt-1]_ +exclude_package_data section +namespace_packages list-comma [#opt-5]_ +py_modules list-comma 34.4.0 +data_files section 40.6.0 [#opt-4]_ +======================= =================================== =============== ==================== + +**Notes**: + +.. [#opt-1] In the ``package_data`` section, a key named with a single asterisk + (``*``) refers to all packages, in lieu of the empty string used in ``setup.py``. + +.. [#opt-2] In ``install_requires`` and ``extras_require``, values are parsed as ``list-semi``. + This implies that in order to include markers, each requirement **must** be *dangling* + in a new line: + + .. code-block:: ini + + [options] + install_requires = + importlib-metadata; python_version<"3.10" + + [options.extras_require] + all = + importlib-metadata; python_version<"3.10" + +.. [#opt-3] The ``find:`` and ``find_namespace:`` directive can be further configured + in a dedicated subsection ``options.packages.find``. This subsection accepts the + same keys as the ``setuptools.find_packages`` and the + ``setuptools.find_namespace_packages`` function: + ``where``, ``include``, and ``exclude``. + + The ``find_namespace:`` directive is supported since Python >=3.3. + +.. [#opt-4] ``data_files`` is deprecated and should be avoided. + Please check :doc:`/userguide/datafiles` for more information. + +.. [#opt-5] ``namespace_packages`` is deprecated in favour of native/implicit + namespaces (:pep:`420`). Check :doc:`the Python Packaging User Guide + ` for more information. + +.. [#opt-6] ``file:`` directives for reading requirements are supported since version 62.6. + The format for the file resembles a ``requirements.txt`` file, + however please keep in mind that all non-comment lines must conform with :pep:`508` + (``pip``-specify syntaxes, e.g. ``-c/-r/-e`` flags, are not supported). + Library developers should avoid tightly pinning their dependencies to a specific + version (e.g. via a "locked" requirements file). + + +Compatibility with other tools +============================== + +Historically, several tools explored declarative package configuration +in parallel. And several of them chose to place the packaging +configuration within the project's :file:`setup.cfg` file. +One of the first was ``distutils2``, which development has stopped in +2013. Other include ``pbr`` which is still under active development or +``d2to1``, which was a plug-in that backports declarative configuration +to ``distutils``, but has had no release since Oct. 2015. +As a way to harmonize packaging tools, ``setuptools``, having held the +position of *de facto* standard, has gradually integrated those +features as part of its core features. + +Still this has lead to some confusion and feature incompatibilities: + +- some tools support features others don't; +- some have similar features but the declarative syntax differs; + +The table below tries to summarize the differences. But, please, refer +to each tool documentation for up-to-date information. + +=========================== ========== ========== ===== === +feature setuptools distutils2 d2to1 pbr +=========================== ========== ========== ===== === +[metadata] description-file S Y Y Y +[files] S Y Y Y +entry_points Y Y Y S +[backwards_compat] N Y Y Y +=========================== ========== ========== ===== === + +Y: supported, N: unsupported, S: syntax differs (see +:ref:`above example`). + +Also note that some features were only recently added to ``setuptools``. +Please refer to the previous sections to find out when. diff --git a/docs/userguide/dependency_management.rst b/docs/userguide/dependency_management.rst new file mode 100644 index 0000000000..38ca7bdff7 --- /dev/null +++ b/docs/userguide/dependency_management.rst @@ -0,0 +1,453 @@ +===================================== +Dependencies Management in Setuptools +===================================== + +There are three types of dependency styles offered by setuptools: +1) build system requirement, 2) required dependency and 3) optional +dependency. + +Each dependency, regardless of type, needs to be specified according to :pep:`508` +and :pep:`440`. +This allows adding version :pep:`range restrictions <440#version-specifiers>` +and :ref:`environment markers `. + + +.. _build-requires: + +Build system requirement +======================== + +After organizing all the scripts and files and getting ready for packaging, +there needs to be a way to specify what programs and libraries (build backend) +are actually needed to build the package for distribution. For Setuptools, the +requisite library is ``setuptools``. Specify the build backend in a +``pyproject.toml`` file (see also :doc:`/userguide/quickstart` or +:doc:`/build_meta`): + +.. code-block:: toml + + [build-system] + requires = ["setuptools"] + #... + +Also include any other ``setuptools`` plugins +(e.g., :pypi:`setuptools_scm`, :pypi:`setuptools-golang`, :pypi:`setuptools-rust`) +or build-time dependency (e.g., :pypi:`Cython`, :pypi:`cppy`, :pypi:`pybind11`). + +.. code-block:: toml + + [build-system] + requires = ["setuptools", "cython", "setuptools_scm"] + + +If the project depends on a feature introduced in a specific version of Setuptools, +it is good practice to specify it as a lower bound: + +.. code-block:: toml + + [build-system] + requires = ["setuptools >= 61.2"] + +Some may be tempted to also include an upper-bound for yet unreleased major +versions (e.g. ``setuptools <= 70``) or pin to a specific version (e.g. +``setuptools == 70.0.4``) in order to avoid the project being uninstallable +should those backward-incompatible changes affect this release of the project. +Setuptools maintainers recommend strongly against this precautionary approach. +The team primarily maintains one release, the latest monotonically-increasing +release, and encourages users to use that latest release (work at HEAD). As a +result, the team is cognizant of and takes responsibility for making +backward-incompatible changes and aims to mitigate the impact of any breaking +changes prior to releasing that change. By pinning against an unreleased +version, it causes toil (maintenance burden) for each and every project that +does the pinning (and the consumers that use it) and increases the risk of +erosion if maintenance is unsustained. This tradeoff between reproducibility +and compatibility is especially stark because Setuptools frequently releases +backward-incompatible releases for a variety of reasons, many of which won't +affect a given project. + +.. note:: + In previous versions of ``setuptools``, + the ``setup_requires`` keyword performed a similar function but is + now considered deprecated in favor of the :pep:`517` style described above. + To peek into how this legacy keyword is used, consult our :doc:`guide on + deprecated practice (WIP) `. + + +.. _Declaring Dependencies: + +Declaring required dependency +============================= +This is where a package declares its core dependencies, without which it won't +be able to run. ``setuptools`` supports automatically downloading and installing +these dependencies when the package is installed. Although there is more +finesse to it, let's start with a simple example. + +.. tab:: pyproject.toml + + .. code-block:: toml + + [project] + # ... + dependencies = [ + "docutils", + "BazSpam == 1.1", + ] + # ... + +.. tab:: setup.cfg + + .. code-block:: ini + + [options] + #... + install_requires = + docutils + BazSpam ==1.1 + +.. tab:: setup.py + + .. code-block:: python + + setup( + ..., + install_requires=[ + 'docutils', + 'BazSpam ==1.1', + ], + ) + + +When your project is installed (e.g., using :pypi:`pip`), all of the dependencies not +already installed will be located (via `PyPI`_), downloaded, built (if necessary), +and installed and 2) Any scripts in your project will be installed with wrappers +that verify the availability of the specified dependencies at runtime. + + +.. _environment-markers: + +Platform specific dependencies +------------------------------ +Setuptools offers the capability to evaluate certain conditions before blindly +installing everything listed in ``install_requires``. This is great for platform +specific dependencies. For example, the ``enum`` package was added in Python +3.4, therefore, package that depends on it can elect to install it only when +the Python version is older than 3.4. To accomplish this + +.. tab:: pyproject.toml + + .. code-block:: toml + + [project] + # ... + dependencies = [ + "enum34; python_version<'3.4'", + ] + # ... + +.. tab:: setup.cfg + + .. code-block:: ini + + [options] + #... + install_requires = + enum34;python_version<'3.4' + +.. tab:: setup.py + + .. code-block:: python + + setup( + ..., + install_requires=[ + "enum34;python_version<'3.4'", + ], + ) + +Similarly, if you also wish to declare ``pywin32`` with a minimal version of 1.0 +and only install it if the user is using a Windows operating system: + +.. tab:: pyproject.toml + + .. code-block:: toml + + [project] + # ... + dependencies = [ + "enum34; python_version<'3.4'", + "pywin32 >= 1.0; platform_system=='Windows'", + ] + # ... + +.. tab:: setup.cfg + + .. code-block:: ini + + [options] + #... + install_requires = + enum34;python_version<'3.4' + pywin32 >= 1.0;platform_system=='Windows' + +.. tab:: setup.py + + .. code-block:: python + + setup( + ..., + install_requires=[ + "enum34;python_version<'3.4'", + "pywin32 >= 1.0;platform_system=='Windows'", + ], + ) + +The environmental markers that may be used for testing platform types are +detailed in :pep:`508`. + +.. seealso:: + Alternatively, a :ref:`backend wrapper ` can be used for + specific use cases where environment markers aren't sufficient. + + +Direct URL dependencies +----------------------- + +.. attention:: + `PyPI`_ and other standards-conformant package indices **do not** accept + packages that declare dependencies using direct URLs. ``pip`` will accept them + when installing packages from the local filesystem or from another URL, + however. + +Dependencies that are not available on a package index but can be downloaded +elsewhere in the form of a source repository or archive may be specified +using a variant of :pep:`PEP 440's direct references <440#direct-references>`: + +.. tab:: pyproject.toml + + .. code-block:: toml + + [project] + # ... + dependencies = [ + "Package-A @ git+https://example.net/package-a.git@main", + "Package-B @ https://example.net/archives/package-b.whl", + ] + +.. tab:: setup.cfg + + .. code-block:: ini + + [options] + #... + install_requires = + Package-A @ git+https://example.net/package-a.git@main + Package-B @ https://example.net/archives/package-b.whl + +.. tab:: setup.py + + .. code-block:: python + + setup( + install_requires=[ + "Package-A @ git+https://example.net/package-a.git@main", + "Package-B @ https://example.net/archives/package-b.whl", + ], + ..., + ) + +For source repository URLs, a list of supported protocols and VCS-specific +features such as selecting certain branches or tags can be found in pip's +documentation on `VCS support `_. +Supported formats for archive URLs are sdists and wheels. + + +Optional dependencies +===================== +Setuptools allows you to declare dependencies that are not installed by default. +This effectively means that you can create a "variant" of your package with a +set of extra functionalities. + +For example, let's consider a ``Package-A`` that offers +optional PDF support and requires two other dependencies for it to work: + +.. tab:: pyproject.toml + + .. code-block:: toml + + [project] + name = "Package-A" + # ... + [project.optional-dependencies] + PDF = ["ReportLab>=1.2", "RXP"] + +.. tab:: setup.cfg + + .. code-block:: ini + + [metadata] + name = Package-A + + [options.extras_require] + PDF = + ReportLab>=1.2 + RXP + + +.. tab:: setup.py + + .. code-block:: python + + setup( + name="Package-A", + ..., + extras_require={ + "PDF": ["ReportLab>=1.2", "RXP"], + }, + ) + +.. sidebar:: + + .. tip:: + It is also convenient to declare optional requirements for + ancillary tasks such as running tests and or building docs. + +The name ``PDF`` is an arbitrary :pep:`identifier <685>` of such a list of dependencies, to +which other components can refer and have them installed. + +A use case for this approach is that other package can use this "extra" for their +own dependencies. For example, if ``Package-B`` needs ``Package-A`` with PDF support +installed, it might declare the dependency like this: + +.. tab:: pyproject.toml + + .. code-block:: toml + + [project] + name = "Package-B" + # ... + dependencies = [ + "Package-A[PDF]" + ] + +.. tab:: setup.cfg + + .. code-block:: ini + + [metadata] + name = Package-B + #... + + [options] + #... + install_requires = + Package-A[PDF] + +.. tab:: setup.py + + .. code-block:: python + + setup( + name="Package-B", + install_requires=["Package-A[PDF]"], + ..., + ) + +This will cause ``ReportLab`` to be installed along with ``Package-A``, if ``Package-B`` is +installed -- even if ``Package-A`` was already installed. In this way, a project +can encapsulate groups of optional "downstream dependencies" under a feature +name, so that packages that depend on it don't have to know what the downstream +dependencies are. If a later version of ``Package-A`` builds in PDF support and +no longer needs ``ReportLab``, or if it ends up needing other dependencies besides +``ReportLab`` in order to provide PDF support, ``Package-B``'s setup information does +not need to change, but the right packages will still be installed if needed. + +.. tip:: + Best practice: if a project ends up no longer needing any other packages to + support a feature, it should keep an empty requirements list for that feature + in its ``extras_require`` argument, so that packages depending on that feature + don't break (due to an invalid feature name). + +.. warning:: + Historically ``setuptools`` also used to support extra dependencies in console + scripts, for example: + + .. tab:: setup.cfg + + .. code-block:: ini + + [metadata] + name = Package-A + #... + + [options] + #... + entry_points= + [console_scripts] + rst2pdf = project_a.tools.pdfgen [PDF] + rst2html = project_a.tools.htmlgen + + .. tab:: setup.py + + .. code-block:: python + + setup( + name="Package-A", + ..., + entry_points={ + "console_scripts": [ + "rst2pdf = project_a.tools.pdfgen [PDF]", + "rst2html = project_a.tools.htmlgen", + ], + }, + ) + + This syntax indicates that the entry point (in this case a console script) + is only valid when the PDF extra is installed. It is up to the installer + to determine how to handle the situation where PDF was not indicated + (e.g., omit the console script, provide a warning when attempting to load + the entry point, assume the extras are present and let the implementation + fail later). + + **However**, ``pip`` and other tools might not support this use case for extra + dependencies, therefore this practice is considered **deprecated**. + See :doc:`PyPUG:specifications/entry-points`. + + +Python requirement +================== +In some cases, you might need to specify the minimum required python version. +This can be configured as shown in the example below. + +.. tab:: pyproject.toml + + .. code-block:: toml + + [project] + name = "Package-B" + requires-python = ">=3.6" + # ... + +.. tab:: setup.cfg + + .. code-block:: ini + + [metadata] + name = Package-B + #... + + [options] + #... + python_requires = >=3.6 + +.. tab:: setup.py + + .. code-block:: python + + setup( + name="Package-B", + python_requires=">=3.6", + ..., + ) + + +.. _PyPI: https://pypi.org diff --git a/docs/userguide/development_mode.rst b/docs/userguide/development_mode.rst new file mode 100644 index 0000000000..3eabe87fcb --- /dev/null +++ b/docs/userguide/development_mode.rst @@ -0,0 +1,260 @@ +Development Mode (a.k.a. "Editable Installs") +============================================= + +When creating a Python project, developers usually want to implement and test +changes iteratively, before cutting a release and preparing a distribution archive. + +In normal circumstances this can be quite cumbersome and require the developers +to manipulate the ``PYTHONPATH`` environment variable or to continuously re-build +and re-install the project. + +To facilitate iterative exploration and experimentation, setuptools allows +users to instruct the Python interpreter and its import machinery to load the +code under development directly from the project folder without having to +copy the files to a different location in the disk. +This means that changes in the Python source code can immediately take place +without requiring a new installation. + +You can enter this "development mode" by performing an :doc:`editable installation +` inside of a :term:`virtual environment`, +using :doc:`pip's ` ``-e/--editable`` flag, as shown below: + +.. code-block:: bash + + $ cd your-python-project + $ python -m venv .venv + # Activate your environment with: + # `source .venv/bin/activate` on Unix/macOS + # or `.venv\Scripts\activate` on Windows + + $ pip install --editable . + + # Now you have access to your package + # as if it was installed in .venv + $ python -c "import your_python_project" + + +An "editable installation" works very similarly to a regular install with +``pip install .``, except that it only installs your package dependencies, +metadata and wrappers for :ref:`console and GUI scripts `. +Under the hood, setuptools will try to create a special :mod:`.pth file ` +in the target directory (usually ``site-packages``) that extends the +``PYTHONPATH`` or install a custom :doc:`import hook `. + +When you're done with a given development task, you can simply uninstall your +package (as you would normally do with ``pip uninstall ``). + +Please note that, by default an editable install will expose at least all the +files that would be available in a regular installation. However, depending on +the file and directory organization in your project, it might also expose +as a side effect files that would not be normally available. +This is allowed so you can iteratively create new Python modules. +Please have a look on the following section if you are looking for a different behaviour. + +.. admonition:: Virtual Environments + + You can think about virtual environments as "isolated Python runtime deployments" + that allow users to install different sets of libraries and tools without + messing with the global behaviour of the system. + + They are a safe way of testing new projects and can be created easily + with the :mod:`venv` module from the standard library. + + Please note however that depending on your operating system or distribution, + ``venv`` might not come installed by default with Python. For those cases, + you might need to use the OS package manager to install it. + For example, in Debian/Ubuntu-based systems you can obtain it via: + + .. code-block:: bash + + sudo apt install python3-venv + + Alternatively, you can also try installing :pypi:`virtualenv`. + More information is available on the Python Packaging User Guide on + :doc:`PyPUG:guides/installing-using-pip-and-virtual-environments`. + +.. note:: + .. versionchanged:: v64.0.0 + Editable installation hooks implemented according to :pep:`660`. + Support for :pep:`namespace packages <420>` is still **EXPERIMENTAL**. + + +"Strict" editable installs +-------------------------- + +When thinking about editable installations, users might have the following +expectations: + +1. It should allow developers to add new files (or split/rename existing ones) + and have them automatically exposed. +2. It should behave as close as possible to a regular installation and help + users to detect problems (e.g. new files not being included in the distribution). + +Unfortunately these expectations are in conflict with each other. +To solve this problem ``setuptools`` allows developers to choose a more +*"strict"* mode for the editable installation. This can be done by passing +a special *configuration setting* via :pypi:`pip`, as indicated below: + +.. code-block:: bash + + pip install -e . --config-settings editable_mode=strict + +In this mode, new files **won't** be exposed and the editable installs will +try to mimic as much as possible the behavior of a regular install. +Under the hood, ``setuptools`` will create a tree of file links in an auxiliary +directory (``$your_project_dir/build``) and add it to ``PYTHONPATH`` via a +:mod:`.pth file `. (Please be careful to not delete this repository +by mistake otherwise your files may stop being accessible). + +.. warning:: + Strict editable installs require auxiliary files to be placed in a + ``build/__editable__.*`` directory (relative to your project root). + + Please be careful to not remove this directory while testing your project, + otherwise your editable installation may be compromised. + + You can remove the ``build/__editable__.*`` directory after uninstalling. + + +.. note:: + .. versionadded:: v64.0.0 + Added new *strict* mode for editable installations. + The exact details of how this mode is implemented may vary. + + +Limitations +----------- + +- The *editable* term is used to refer only to Python modules + inside the package directories. Non-Python files, external (data) files, + executable script files, binary extensions, headers and metadata may be + exposed as a *snapshot* of the version they were at the moment of the + installation. +- Adding new dependencies, entry-points or changing your project's metadata + require a fresh "editable" re-installation. +- Console scripts and GUI scripts **MUST** be specified via :doc:`entry-points + ` to work properly. +- *Strict* editable installs require the file system to support + either :wiki:`symbolic ` or :wiki:`hard links `. + This installation mode might also generate auxiliary files under the project directory. +- There is *no guarantee* that the editable installation will be performed + using a specific technique. Depending on each project, ``setuptools`` may + select a different approach to ensure the package is importable at runtime. +- There is *no guarantee* that files outside the top-level package directory + will be accessible after an editable install. +- There is *no guarantee* that attributes like ``__path__`` or ``__file__`` + will correspond to the exact location of the original files (e.g., + ``setuptools`` might employ file links to perform the editable installation). + Users are encouraged to use tools like :mod:`importlib.resources` or + :mod:`importlib.metadata` when trying to access package files directly. +- Editable installations may not work with + :doc:`namespaces created with pkgutil or pkg_resources + `. + Please use :pep:`420`-style implicit namespaces [#namespaces]_. +- Support for :pep:`420`-style implicit namespace packages for + projects structured using :ref:`flat-layout` is still **experimental**. + If you experience problems, you can try converting your package structure + to the :ref:`src-layout`. +- File system entries in the current working directory + whose names coincidentally match installed packages + may take precedence in :doc:`Python's import system `. + Users are encouraged to avoid such scenarios [#cwd]_. +- Setuptools will try to give the right precedence to modules in an editable install. + However this is not always an easy task. If you have a particular order in + ``sys.path`` or some specific import precedence that needs to be respected, + the editable installation as supported by Setuptools might not be able to + fulfil this requirement, and therefore it might not be the right tool for your use case. + +.. attention:: + Editable installs are **not a perfect replacement for regular installs** + in a test environment. When in doubt, please test your projects as + installed via a regular wheel. There are tools in the Python ecosystem, + like :pypi:`tox` or :pypi:`nox`, that can help you with that + (when used with appropriate configuration). + + +Legacy Behavior +--------------- + +If your project is not compatible with the new "editable installs" or you wish +to replicate the legacy behavior, for the time being you can also perform the +installation in the ``compat`` mode: + +.. code-block:: bash + + pip install -e . --config-settings editable_mode=compat + +This installation mode will try to emulate how ``python setup.py develop`` +works (still within the context of :pep:`660`). + +.. warning:: + The ``compat`` mode is *transitional* and will be removed in + future versions of ``setuptools``, it exists only to help during the + migration period. + Also note that support for this mode is limited: + it is safe to assume that the ``compat`` mode is offered "as is", and + improvements are unlikely to be implemented. + Users are encouraged to try out the new editable installation techniques + and make the necessary adaptations. + + +How editable installations work +------------------------------- + +*Advanced topic* + +There are many techniques that can be used to expose packages under development +in such a way that they are available as if they were installed. +Depending on the project file structure and the selected mode, ``setuptools`` +will choose one of these approaches for the editable installation [#criteria]_. + +A non-exhaustive list of implementation mechanisms is presented below. +More information is available on the text of :pep:`PEP 660 <660#what-to-put-in-the-wheel>`. + +- A static ``.pth`` file [#static_pth]_ can be added to one of the directories + listed in :func:`site.getsitepackages` or :func:`site.getusersitepackages` to + extend :obj:`sys.path`. +- A directory containing a *farm of file links* that mimic the + project structure and point to the original files can be employed. + This directory can then be added to :obj:`sys.path` using a static ``.pth`` file. +- A dynamic ``.pth`` file [#dynamic_pth]_ can also be used to install an + "import :term:`finder`" (:obj:`~importlib.abc.MetaPathFinder` or + :obj:`~importlib.abc.PathEntryFinder`) that will hook into Python's + :doc:`import system ` machinery. + +.. attention:: + ``Setuptools`` offers **no guarantee** of which technique will be used to + perform an editable installation. This will vary from project to project + and may change depending on the specific version of ``setuptools`` being + used. + + +---- + +.. rubric:: Notes + +.. [#namespaces] + You *may* be able to use *strict* editable installations with namespace + packages created with ``pkgutil`` or ``pkg_namespaces``, however this is not + officially supported. + +.. [#cwd] + Techniques like the :ref:`src-layout` or tooling-specific options like + `tox's changedir `_ + can be used to prevent such kinds of situations (checkout `this blog post + `_ for more + insights). + +.. [#criteria] + ``setuptools`` strives to find a balance between allowing the user to see + the effects of project files being edited while still trying to keep the + editable installation as similar as possible to a regular installation. + +.. [#static_pth] + i.e., a ``.pth`` file where each line correspond to a path that should be + added to :obj:`sys.path`. See :mod:`Site-specific configuration hook `. + +.. [#dynamic_pth] + i.e., a ``.pth`` file that starts where each line starts with an ``import`` + statement and executes arbitrary Python code. See :mod:`Site-specific + configuration hook `. diff --git a/docs/userguide/distribution.rst b/docs/userguide/distribution.rst new file mode 100644 index 0000000000..b4e791a868 --- /dev/null +++ b/docs/userguide/distribution.rst @@ -0,0 +1,198 @@ +.. _Specifying Your Project's Version: + +Specifying Your Project's Version +================================= + +Setuptools can work well with most versioning schemes. Over the years, +setuptools has tried to closely follow the :pep:`440` scheme, but it +also supports legacy versions. There are, however, a +few special things to watch out for, in order to ensure that setuptools and +other tools can always tell what version of your package is newer than another +version. Knowing these things will also help you correctly specify what +versions of other projects your project depends on. + +A version consists of an alternating series of release numbers and +`pre-release `_ +or `post-release `_ tags. A +release number is a series of digits punctuated by +dots, such as ``2.4`` or ``0.5``. Each series of digits is treated +numerically, so releases ``2.1`` and ``2.1.0`` are different ways to spell the +same release number, denoting the first subrelease of release 2. But ``2.10`` +is the *tenth* subrelease of release 2, and so is a different and newer release +from ``2.1`` or ``2.1.0``. Leading zeros within a series of digits are also +ignored, so ``2.01`` is the same as ``2.1``, and different from ``2.0.1``. + +Following a release number, you can have either a pre-release or post-release +tag. Pre-release tags make a version be considered *older* than the version +they are appended to. So, revision ``2.4`` is *newer* than release candidate +``2.4rc1``, which in turn is newer than beta release ``2.4b1`` or +alpha release ``2.4a1``. Postrelease tags make +a version be considered *newer* than the version they are appended to. So, +revisions like ``2.4.post1`` are newer than ``2.4``, but *older* +than ``2.4.1`` (which has a higher release number). + +In the case of legacy versions (for example, ``2.4pl1``), they are considered +older than non-legacy versions. Taking that in count, a revision ``2.4pl1`` +is *older* than ``2.4``. Note that ``2.4pl1`` is not :pep:`440`-compliant. + +A pre-release tag is a series of letters that are alphabetically before +"final". Some examples of prerelease tags would include ``alpha``, ``beta``, +``a``, ``c``, ``dev``, and so on. You do not have to place a dot or dash +before the prerelease tag if it's immediately after a number, but it's okay to +do so if you prefer. Thus, ``2.4c1`` and ``2.4.c1`` and ``2.4-c1`` all +represent release candidate 1 of version ``2.4``, and are treated as identical +by setuptools. Note that only ``a``, ``b``, and ``rc`` are :pep:`440`-compliant +pre-release tags. + +In addition, there are three special prerelease tags that are treated as if +they were ``rc``: ``c``, ``pre``, and ``preview``. So, version +``2.4c1``, ``2.4pre1`` and ``2.4preview1`` are all the exact same version as +``2.4rc1``, and are treated as identical by setuptools. + +A post-release tag is the string ``.post``, followed by a non-negative integer +value. Post-release tags are generally used to separate patch numbers, port +numbers, build numbers, revision numbers, or date stamps from the release +number. For example, the version ``2.4.post1263`` might denote Subversion +revision 1263 of a post-release patch of version ``2.4``. Or you might use +``2.4.post20051127`` to denote a date-stamped post-release. Legacy post-release +tags could be either a series of letters that are alphabetically greater than or +equal to "final", or a dash (``-``) - for example ``2.4-r1263`` or +``2.4-20051127``. + +Notice that after each legacy pre or post-release tag, you are free to place +another release number, followed again by more pre- or post-release tags. For +example, ``0.6a9.dev41475`` could denote Subversion revision 41475 of the +in-development version of the ninth alpha of release 0.6. Notice that ``dev`` +is a pre-release tag, so this version is a *lower* version number than +``0.6a9``, which would be the actual ninth alpha of release 0.6. But the +``41475`` is a post-release tag, so this version is *newer* than ``0.6a9.dev``. + +For the most part, setuptools' interpretation of version numbers is intuitive, +but here are a few tips that will keep you out of trouble in the corner cases: + +* Don't stick adjoining pre-release tags together without a dot or number + between them. Version ``1.9adev`` is the ``adev`` prerelease of ``1.9``, + *not* a development pre-release of ``1.9a``. Use ``.dev`` instead, as in + ``1.9a.dev``, or separate the prerelease tags with a number, as in + ``1.9a0dev``. ``1.9a.dev``, ``1.9a0dev``, and even ``1.9a0.dev0`` are + identical versions from setuptools' point of view, so you can use whatever + scheme you prefer. Of these examples, only ``1.9a0.dev0`` is + :pep:`440`-compliant. + +* If you want to be certain that your chosen numbering scheme works the way + you think it will, you can use the ``pkg_resources.parse_version()`` function + to compare different version numbers:: + + >>> from pkg_resources import parse_version + >>> parse_version("1.9.a.dev") == parse_version("1.9a0dev") + True + >>> parse_version("2.1-rc2") < parse_version("2.1") + True + >>> parse_version("0.6a9dev-r41475") < parse_version("0.6a9") + True + +Once you've decided on a version numbering scheme for your project, you can +have setuptools automatically tag your in-development releases with various +pre- or post-release tags. See the following section for more details. + + +Tagging and "Daily Build" or "Snapshot" Releases +------------------------------------------------ + +.. warning:: + Please note that running ``python setup.py ...`` directly is no longer + considered a good practice and that in the future the commands ``egg_info`` + and ``rotate`` will be deprecated. + + As a result, the instructions and information presented in this section + should be considered **transitional** while setuptools don't provide a + mechanism for tagging releases. + + Meanwhile, if you can also consider using :pypi:`setuptools-scm` to achieve + similar objectives. + + +When a set of related projects are under development, it may be important to +track finer-grained version increments than you would normally use for e.g. +"stable" releases. While stable releases might be measured in dotted numbers +with alpha/beta/etc. status codes, development versions of a project often +need to be tracked by revision or build number or even build date. This is +especially true when projects in development need to refer to one another, and +therefore may literally need an up-to-the-minute version of something! + +To support these scenarios, ``setuptools`` allows you to "tag" your source and +egg distributions by adding one or more of the following to the project's +"official" version identifier: + +* A manually-specified pre-release tag, such as "build" or "dev", or a + manually-specified post-release tag, such as a build or revision number + (``--tag-build=STRING, -bSTRING``) + +* An 8-character representation of the build date (``--tag-date, -d``), as + a postrelease tag + +You can add these tags by adding ``egg_info`` and the desired options to +the command line ahead of the ``sdist`` or ``bdist`` commands that you want +to generate a daily build or snapshot for. See the section below on the +:ref:`egg_info ` command for more details. + +(Also, before you release your project, be sure to see the section on +:ref:`Specifying Your Project's Version` for more information about how pre- and +post-release tags affect how version numbers are interpreted. This is +important in order to make sure that dependency processing tools will know +which versions of your project are newer than others). + +Finally, if you are creating builds frequently, and either building them in a +downloadable location or are copying them to a distribution server, you should +probably also check out the :ref:`rotate ` command, which lets you automatically +delete all but the N most-recently-modified distributions matching a glob +pattern. So, you can use a command line like:: + + setup.py egg_info -rbDEV bdist_egg rotate -m.egg -k3 + +to build an egg whose version info includes "DEV-rNNNN" (where NNNN is the +most recent Subversion revision that affected the source tree), and then +delete any egg files from the distribution directory except for the three +that were built most recently. + +If you have to manage automated builds for multiple packages, each with +different tagging and rotation policies, you may also want to check out the +:ref:`alias ` command, which would let each package define an alias like ``daily`` +that would perform the necessary tag, build, and rotate commands. Then, a +simpler script or cron job could just run ``setup.py daily`` in each project +directory. (And, you could also define sitewide or per-user default versions +of the ``daily`` alias, so that projects that didn't define their own would +use the appropriate defaults.) + +Making "Official" (Non-Snapshot) Releases +----------------------------------------- + +When you make an official release, creating source or binary distributions, +you will need to override the tag settings from ``setup.cfg``, so that you +don't end up registering versions like ``foobar-0.7a1.dev-r34832``. This is +easy to do if you are developing on the trunk and using tags or branches for +your releases - just make the change to ``setup.cfg`` after branching or +tagging the release, so the trunk will still produce development snapshots. + +Alternately, if you are not branching for releases, you can override the +default version options on the command line, using something like:: + + setup.py egg_info -Db "" sdist bdist_egg + +The first part of this command (``egg_info -Db ""``) will override the +configured tag information, before creating source and binary eggs. Thus, these +commands will use the plain version from your ``setup.py``, without adding the +build designation string. + +Of course, if you will be doing this a lot, you may wish to create a personal +alias for this operation, e.g.:: + + setup.py alias -u release egg_info -Db "" + +You can then use it like this:: + + setup.py release sdist bdist_egg + +Or of course you can create more elaborate aliases that do all of the above. +See the sections below on the :ref:`egg_info ` and +:ref:`alias ` commands for more ideas. diff --git a/docs/userguide/entry_point.rst b/docs/userguide/entry_point.rst new file mode 100644 index 0000000000..c8022c3d4f --- /dev/null +++ b/docs/userguide/entry_point.rst @@ -0,0 +1,572 @@ +.. _`entry_points`: + +============ +Entry Points +============ + +Entry points are a type of metadata that can be exposed by packages on installation. +They are a very useful feature of the Python ecosystem, +and come specially handy in two scenarios: + +1. The package would like to provide commands to be run at the terminal. +This functionality is known as *console* scripts. The command may also +open up a GUI, in which case it is known as a *GUI* script. An example +of a console script is the one provided by the :pypi:`pip` package, which +allows you to run commands like ``pip install`` in the terminal. + +2. A package would like to enable customization of its functionalities +via *plugins*. For example, the test framework :pypi:`pytest` allows +customization via the ``pytest11`` entry point, and the syntax +highlighting tool :pypi:`pygments` allows specifying additional styles +using the entry point ``pygments.styles``. + + +.. _console-scripts: + +Console Scripts +=============== + +Let us start with console scripts. +First consider an example without entry points. Imagine a package +defined thus:: + + project_root_directory + ├── pyproject.toml # and/or setup.cfg, setup.py + └── src + └── timmins + ├── __init__.py + └── ... + +with ``__init__.py`` as: + +.. code-block:: python + + def hello_world(): + print("Hello world") + +Now, suppose that we would like to provide some way of executing the +function ``hello_world()`` from the command-line. One way to do this +is to create a file ``src/timmins/__main__.py`` providing a hook as +follows: + +.. code-block:: python + + from . import hello_world + + if __name__ == '__main__': + hello_world() + +Then, after installing the package ``timmins``, we may invoke the ``hello_world()`` +function as follows, through the `runpy `_ +module: + +.. code-block:: bash + + $ python -m timmins + Hello world + +Instead of this approach using ``__main__.py``, you can also create a +user-friendly CLI executable that can be called directly without ``python -m``. +In the above example, to create a command ``hello-world`` that invokes +``timmins.hello_world``, add a console script entry point to your +configuration: + +.. tab:: pyproject.toml + + .. code-block:: toml + + [project.scripts] + hello-world = "timmins:hello_world" + +.. tab:: setup.cfg + + .. code-block:: ini + + [options.entry_points] + console_scripts = + hello-world = timmins:hello_world + +.. tab:: setup.py + + .. code-block:: python + + from setuptools import setup + + setup( + # ..., + entry_points={ + 'console_scripts': [ + 'hello-world = timmins:hello_world', + ] + } + ) + + +After installing the package, a user may invoke that function by simply calling +``hello-world`` on the command line: + +.. code-block:: bash + + $ hello-world + Hello world + +Note that any function used as a console script, i.e. ``hello_world()`` in +this example, should not accept any arguments. If your function requires any input +from the user, you can use regular command-line argument parsing utilities like +:mod:`argparse` within the body of +the function to parse user input given via :obj:`sys.argv`. + +You may have noticed that we have used a special syntax to specify the function +that must be invoked by the console script, i.e. we have written ``timmins:hello_world`` +with a colon ``:`` separating the package name and the function name. The full +specification of this syntax is discussed in the `last section <#entry-points-syntax>`_ +of this document, and this can be used to specify a function located anywhere in +your package, not just in ``__init__.py``. + +GUI Scripts +=========== + +In addition to ``console_scripts``, Setuptools supports ``gui_scripts``, which +will launch a GUI application without running in a terminal window. + +For example, if we have a project with the same directory structure as before, +with an ``__init__.py`` file containing the following: + +.. code-block:: python + + import PySimpleGUI as sg + + def hello_world(): + sg.Window(title="Hello world", layout=[[]], margins=(100, 50)).read() + +Then, we can add a GUI script entry point: + +.. tab:: pyproject.toml + + .. code-block:: toml + + [project.gui-scripts] + hello-world = "timmins:hello_world" + +.. tab:: setup.cfg + + .. code-block:: ini + + [options.entry_points] + gui_scripts = + hello-world = timmins:hello_world + +.. tab:: setup.py + + .. code-block:: python + + from setuptools import setup + + setup( + # ..., + entry_points={ + 'gui_scripts': [ + 'hello-world = timmins:hello_world', + ] + } + ) + +.. note:: + To be able to import ``PySimpleGUI``, you need to add ``pysimplegui`` to your package dependencies. + See :doc:`/userguide/dependency_management` for more information. + +Now, running: + +.. code-block:: bash + + $ hello-world + +will open a small application window with the title 'Hello world'. + +Note that just as with console scripts, any function used as a GUI script +should not accept any arguments, and any user input can be parsed within the +body of the function. GUI scripts also use the same syntax (discussed in the +`last section <#entry-points-syntax>`_) for specifying the function to be invoked. + +.. note:: + + The difference between ``console_scripts`` and ``gui_scripts`` only affects + Windows systems. [#use_for_scripts]_ ``console_scripts`` are wrapped in a console + executable, so they are attached to a console and can use ``sys.stdin``, + ``sys.stdout`` and ``sys.stderr`` for input and output. ``gui_scripts`` are + wrapped in a GUI executable, so they can be started without a console, but + cannot use standard streams unless application code redirects them. Other + platforms do not have the same distinction. + +.. note:: + + Console and GUI scripts work because behind the scenes, installers like :pypi:`pip` + create wrapper scripts around the function(s) being invoked. For example, + the ``hello-world`` entry point in the above two examples would create a + command ``hello-world`` launching a script like this: [#use_for_scripts]_ + + .. code-block:: python + + import sys + from timmins import hello_world + sys.exit(hello_world()) + +.. _dynamic discovery of services and plugins: + +Advertising Behavior +==================== + +Console/GUI scripts are one use of the more general concept of entry points. Entry +points more generally allow a packager to advertise behavior for discovery by +other libraries and applications. This feature enables "plug-in"-like +functionality, where one library solicits entry points and any number of other +libraries provide those entry points. + +A good example of this plug-in behavior can be seen in +`pytest plugins `_, +where pytest is a test framework that allows other libraries to extend +or modify its functionality through the ``pytest11`` entry point. + +The console/GUI scripts work similarly, where libraries advertise their commands +and tools like ``pip`` create wrapper scripts that invoke those commands. + +Entry Points for Plugins +======================== + +Let us consider a simple example to understand how we can implement entry points +corresponding to plugins. Say we have a package ``timmins`` with the following +directory structure:: + + timmins + ├── pyproject.toml # and/or setup.cfg, setup.py + └── src + └── timmins + └── __init__.py + +and in ``src/timmins/__init__.py`` we have the following code: + +.. code-block:: python + + def hello_world(): + print('Hello world') + +Basically, we have defined a ``hello_world()`` function which will print the text +'Hello world'. Now, let us say we want to print the text 'Hello world' in different +ways. The current function just prints the text as it is - let us say we want another +style in which the text is enclosed within exclamation marks:: + + !!! Hello world !!! + +Let us see how this can be done using plugins. First, let us separate the style of +printing the text from the text itself. In other words, we can change the code in +``src/timmins/__init__.py`` to something like this: + +.. code-block:: python + + def display(text): + print(text) + + def hello_world(): + display('Hello world') + +Here, the ``display()`` function controls the style of printing the text, and the +``hello_world()`` function calls the ``display()`` function to print the text 'Hello +world`. + +Right now the ``display()`` function just prints the text as it is. In order to be able +to customize it, we can do the following. Let us introduce a new *group* of entry points +named ``timmins.display``, and expect plugin packages implementing this entry point +to supply a ``display()``-like function. Next, to be able to automatically discover plugin +packages that implement this entry point, we can use the +:mod:`importlib.metadata` module, +as follows: + +.. code-block:: python + + from importlib.metadata import entry_points + display_eps = entry_points(group='timmins.display') + +.. note:: + Each ``importlib.metadata.EntryPoint`` object is an object containing a ``name``, a + ``group``, and a ``value``. For example, after setting up the plugin package as + described below, ``display_eps`` in the above code will look like this: [#package_metadata]_ + + .. code-block:: python + + ( + EntryPoint(name='excl', value='timmins_plugin_fancy:excl_display', group='timmins.display'), + ..., + ) + +``display_eps`` will now be a list of ``EntryPoint`` objects, each referring to ``display()``-like +functions defined by one or more installed plugin packages. Then, to import a specific +``display()``-like function - let us choose the one corresponding to the first discovered +entry point - we can use the ``load()`` method as follows: + +.. code-block:: python + + display = display_eps[0].load() + +Finally, a sensible behaviour would be that if we cannot find any plugin packages customizing +the ``display()`` function, we should fall back to our default implementation which prints +the text as it is. With this behaviour included, the code in ``src/timmins/__init__.py`` +finally becomes: + +.. code-block:: python + + from importlib.metadata import entry_points + display_eps = entry_points(group='timmins.display') + try: + display = display_eps[0].load() + except IndexError: + def display(text): + print(text) + + def hello_world(): + display('Hello world') + +That finishes the setup on ``timmins``'s side. Next, we need to implement a plugin +which implements the entry point ``timmins.display``. Let us name this plugin +``timmins-plugin-fancy``, and set it up with the following directory structure:: + + timmins-plugin-fancy + ├── pyproject.toml # and/or setup.cfg, setup.py + └── src + └── timmins_plugin_fancy + └── __init__.py + +And then, inside ``src/timmins_plugin_fancy/__init__.py``, we can put a function +named ``excl_display()`` that prints the given text surrounded by exclamation marks: + +.. code-block:: python + + def excl_display(text): + print('!!!', text, '!!!') + +This is the ``display()``-like function that we are looking to supply to the +``timmins`` package. We can do that by adding the following in the configuration +of ``timmins-plugin-fancy``: + +.. tab:: pyproject.toml + + .. code-block:: toml + + # Note the quotes around timmins.display in order to escape the dot . + [project.entry-points."timmins.display"] + excl = "timmins_plugin_fancy:excl_display" + +.. tab:: setup.cfg + + .. code-block:: ini + + [options.entry_points] + timmins.display = + excl = timmins_plugin_fancy:excl_display + +.. tab:: setup.py + + .. code-block:: python + + from setuptools import setup + + setup( + # ..., + entry_points = { + 'timmins.display': [ + 'excl = timmins_plugin_fancy:excl_display' + ] + } + ) + +Basically, this configuration states that we are a supplying an entry point +under the group ``timmins.display``. The entry point is named ``excl`` and it +refers to the function ``excl_display`` defined by the package ``timmins-plugin-fancy``. + +Now, if we install both ``timmins`` and ``timmins-plugin-fancy``, we should get +the following: + +.. code-block:: pycon + + >>> from timmins import hello_world + >>> hello_world() + !!! Hello world !!! + +whereas if we only install ``timmins`` and not ``timmins-plugin-fancy``, we should +get the following: + +.. code-block:: pycon + + >>> from timmins import hello_world + >>> hello_world() + Hello world + +Therefore, our plugin works. + +Our plugin could have also defined multiple entry points under the group ``timmins.display``. +For example, in ``src/timmins_plugin_fancy/__init__.py`` we could have two ``display()``-like +functions, as follows: + +.. code-block:: python + + def excl_display(text): + print('!!!', text, '!!!') + + def lined_display(text): + print(''.join(['-' for _ in text])) + print(text) + print(''.join(['-' for _ in text])) + +The configuration of ``timmins-plugin-fancy`` would then change to: + +.. tab:: pyproject.toml + + .. code-block:: toml + + [project.entry-points."timmins.display"] + excl = "timmins_plugin_fancy:excl_display" + lined = "timmins_plugin_fancy:lined_display" + +.. tab:: setup.cfg + + .. code-block:: ini + + [options.entry_points] + timmins.display = + excl = timmins_plugin_fancy:excl_display + lined = timmins_plugin_fancy:lined_display + +.. tab:: setup.py + + .. code-block:: python + + from setuptools import setup + + setup( + # ..., + entry_points = { + 'timmins.display': [ + 'excl = timmins_plugin_fancy:excl_display', + 'lined = timmins_plugin_fancy:lined_display', + ] + } + ) + +On the ``timmins`` side, we can also use a different strategy of loading entry +points. For example, we can search for a specific display style: + +.. code-block:: python + + display_eps = entry_points(group='timmins.display') + try: + display = display_eps['lined'].load() + except KeyError: + # if the 'lined' display is not available, use something else + ... + +Or we can also load all plugins under the given group. Though this might not +be of much use in our current example, there are several scenarios in which this +is useful: + +.. code-block:: python + + display_eps = entry_points(group='timmins.display') + for ep in display_eps: + display = ep.load() + # do something with display + ... + +Another point is that in this particular example, we have used plugins to +customize the behaviour of a function (``display()``). In general, we can use entry +points to enable plugins to not only customize the behaviour of functions, but also +of entire classes and modules. This is unlike the case of console/GUI scripts, +where entry points can only refer to functions. The syntax used for specifying the +entry points remains the same as for console/GUI scripts, and is discussed in the +`last section <#entry-points-syntax>`_. + +.. tip:: + The recommended approach for loading and importing entry points is the + :mod:`importlib.metadata` module, + which is a part of the standard library since Python 3.8 and is non-provisional + since Python 3.10. For older versions of Python, its backport + :pypi:`importlib_metadata` should be used. While using the backport, the only + change that has to be made is to replace ``importlib.metadata`` + with ``importlib_metadata``, i.e. + + .. code-block:: python + + from importlib_metadata import entry_points + ... + +In summary, entry points allow a package to open its functionalities for +customization via plugins. +The package soliciting the entry points need not have any dependency +or prior knowledge about the plugins implementing the entry points, and +downstream users are able to compose functionality by pulling together +plugins implementing the entry points. + +Entry Points Syntax +=================== + +The syntax for entry points is specified as follows:: + + = [:[.[.]*]] + +Here, the square brackets ``[]`` denote optionality and the asterisk ``*`` +denotes repetition. +``name`` is the name of the script/entry point you want to create, the left hand +side of ``:`` is the package or module that contains the object you want to invoke +(think about it as something you would write in an import statement), and the right +hand side is the object you want to invoke (e.g. a function). + +To make this syntax more clear, consider the following examples: + +Package or module + If you supply:: + + = + + as the entry point, where ```` can contain ``.`` in the case + of sub-modules or sub-packages, then, tools in the Python ecosystem will roughly + interpret this value as: + + .. code-block:: python + + import + parsed_value = + +Module-level object + If you supply:: + + = : + + where ```` does not contain any ``.``, this will be roughly interpreted + as: + + .. code-block:: python + + from import + parsed_value = + +Nested object + If you supply:: + + = :.. + + this will be roughly interpreted as: + + .. code-block:: python + + from import + parsed_value = .. + +In the case of console/GUI scripts, this syntax can be used to specify a function, while +in the general case of entry points as used for plugins, it can be used to specify a function, +class or module. + +---- + +.. [#use_for_scripts] + Reference: https://packaging.python.org/en/latest/specifications/entry-points/#use-for-scripts + +.. [#package_metadata] + Reference: https://packaging.python.org/en/latest/guides/creating-and-discovering-plugins/#using-package-metadata diff --git a/docs/userguide/ext_modules.rst b/docs/userguide/ext_modules.rst new file mode 100644 index 0000000000..4abc3dcd04 --- /dev/null +++ b/docs/userguide/ext_modules.rst @@ -0,0 +1,203 @@ +========================== +Building Extension Modules +========================== + +Setuptools can build C/C++ extension modules. The keyword argument +``ext_modules`` of ``setup()`` should be a list of instances of the +:class:`setuptools.Extension` class. + + +For example, let's consider a simple project with only one extension module:: + + + ├── pyproject.toml + └── foo.c + +and all project metadata configuration in the ``pyproject.toml`` file: + +.. code-block:: toml + + # pyproject.toml + [build-system] + requires = ["setuptools"] + build-backend = "setuptools.build_meta" + + [project] + name = "mylib-foo" # as it would appear on PyPI + version = "0.42" + +To instruct setuptools to compile the ``foo.c`` file into the extension module +``mylib.foo``, we need to define an appropriate configuration in either +``pyproject.toml`` [#pyproject.toml]_ or ``setup.py`` file , +similar to the following: + +.. tab:: pyproject.toml + + .. code-block:: toml + + [tool.setuptools] + ext-modules = [ + {name = "mylib.foo", sources = ["foo.c"]} + ] + +.. tab:: setup.py + + .. code-block:: python + + from setuptools import Extension, setup + + setup( + ext_modules=[ + Extension( + name="mylib.foo", + sources=["foo.c"], + ), + ] + ) + +The ``name`` value corresponds to how the extension module would be +imported and may include packages/namespaces separated by ``.``. +The ``sources`` value is a list of all source files that are compiled +into a single binary file. +Optionally any other parameter of :class:`setuptools.Extension` can be defined +in the configuration file (but in the case of ``pyproject.toml`` they must be +written using :wiki:`kebab-case` convention). + +.. seealso:: + You can find more information on the `Python docs about C/C++ extensions`_. + Alternatively, you might also be interested in learning about `Cython`_. + + If you plan to distribute a package that uses extensions across multiple + platforms, :pypi:`cibuildwheel` can also be helpful. + +.. important:: + All files used to compile your extension need to be available on the system + when building the package, so please make sure to include some documentation + on how developers interested in building your package from source + can obtain operating system level dependencies + (e.g. compilers and external binary libraries/artifacts). + + You will also need to make sure that all auxiliary files that are contained + inside your :term:`project` (e.g. C headers authored by you or your team) + are configured to be included in your :term:`sdist `. + Please have a look on our section on :ref:`Controlling files in the distribution`. + + +Compiler and linker options +=========================== + +The command ``build_ext`` builds C/C++ extension modules. It creates +a command line for running the compiler and linker by combining +compiler and linker options from various sources: + +.. Reference: `test_customize_compiler` in distutils/tests/test_sysconfig.py + +* the ``sysconfig`` variables ``CC``, ``CXX``, ``CCSHARED``, + ``LDSHARED``, and ``CFLAGS``, +* the environment variables ``CC``, ``CPP``, + ``CXX``, ``LDSHARED`` and ``CFLAGS``, + ``CPPFLAGS``, ``LDFLAGS``, +* the ``Extension`` attributes ``include_dirs``, + ``library_dirs``, ``extra_compile_args``, ``extra_link_args``, + ``runtime_library_dirs``. + +.. Ignoring AR, ARFLAGS, RANLIB here because they are used by the (obsolete?) build_clib, not build_ext. + +Specifically, if the environment variables ``CC``, ``CPP``, ``CXX``, and ``LDSHARED`` +are set, they will be used instead of the ``sysconfig`` variables of the same names. + +The compiler options appear in the command line in the following order: + +.. Reference: "compiler_so" and distutils.ccompiler.gen_preprocess_options, CCompiler.compile, UnixCCompiler._compile + +* first, the options provided by the environment variables ``CFLAGS`` and ``CPPFLAGS``, +* then, the options provided by the ``sysconfig`` variable ``CCSHARED``, +* then, a ``-I`` option for each element of ``Extension.include_dirs``, +* finally, the options provided by ``Extension.extra_compile_args``. + +The linker options appear in the command line in the following order: + +.. Reference: "linker_so" and CCompiler.link + +* first, the options provided by environment variables and ``sysconfig`` variables, +* then, a ``-L`` option for each element of ``Extension.library_dirs``, +* then, a linker-specific option like ``-Wl,-rpath`` for each element of ``Extension.runtime_library_dirs``, +* finally, the options provided by ``Extension.extra_link_args``. + +The resulting command line is then processed by the compiler and linker. +According to the GCC manual sections on `directory options`_ and +`environment variables`_, the C/C++ compiler searches for files named in +``#include `` directives in the following order: + +* first, in directories given by ``-I`` options (in left-to-right order), +* then, in directories given by the environment variable ``CPATH`` (in left-to-right order), +* then, in directories given by ``-isystem`` options (in left-to-right order), +* then, in directories given by the environment variable ``C_INCLUDE_PATH`` (for C) and ``CPLUS_INCLUDE_PATH`` (for C++), +* then, in standard system directories, +* finally, in directories given by ``-idirafter`` options (in left-to-right order). + +The linker searches for libraries in the following order: + +* first, in directories given by ``-L`` options (in left-to-right order), +* then, in directories given by the environment variable ``LIBRARY_PATH`` (in left-to-right order). + + +Distributing Extensions compiled with Cython +============================================ + +When your :pypi:`Cython` extension modules *are declared using the* +:class:`setuptools.Extension` *class*, ``setuptools`` will detect at build time +whether Cython is installed or not. + +If Cython is present, then ``setuptools`` will use it to build the ``.pyx`` files. +Otherwise, ``setuptools`` will try to find and compile the equivalent ``.c`` files +(instead of ``.pyx``). These files can be generated using the +`cython command line tool`_. + +You can ensure that Cython is always automatically installed into the build +environment by including it as a :ref:`build dependency ` in +your ``pyproject.toml``: + +.. code-block:: toml + + [build-system] + requires = [ + # ..., + "cython", + ] + +Alternatively, you can include the ``.c`` code that is pre-compiled by Cython +into your source distribution, alongside the original ``.pyx`` files (this +might save a few seconds when building from an ``sdist``). +To improve version compatibility, you probably also want to include current +``.c`` files in your :wiki:`revision control system`, and rebuild them whenever +you check changes in for the ``.pyx`` source files. +This will ensure that people tracking your project will be able to build it +without installing Cython, and that there will be no variation due to small +differences in the generate C files. +Please checkout our docs on :ref:`controlling files in the distribution` for +more information. + +---- + +Extension API Reference +======================= + +.. autoclass:: setuptools.Extension + + +---- + +.. rubric:: Notes + +.. [#pyproject.toml] + Declarative configuration of extension modules via ``pyproject.toml`` was + introduced recently and is still considered experimental. + Therefore it might change in future versions of ``setuptools``. + + +.. _Python docs about C/C++ extensions: https://docs.python.org/3/extending/extending.html +.. _Cython: https://cython.readthedocs.io/en/stable/index.html +.. _directory options: https://gcc.gnu.org/onlinedocs/gcc/Directory-Options.html +.. _environment variables: https://gcc.gnu.org/onlinedocs/gcc/Environment-Variables.html +.. _cython command line tool: https://cython.readthedocs.io/en/stable/src/userguide/source_files_and_compilation.html diff --git a/docs/userguide/extension.rst b/docs/userguide/extension.rst new file mode 100644 index 0000000000..ef5e33f3a8 --- /dev/null +++ b/docs/userguide/extension.rst @@ -0,0 +1,308 @@ +.. _Creating ``distutils`` Extensions: + +Extending or Customizing Setuptools +=================================== + +Setuptools design is based on the distutils_ package originally distributed +as part of Python's standard library, effectively serving as its successor +(as established in :pep:`632`). + +This means that ``setuptools`` strives to honor the extension mechanisms +provided by ``distutils``, and allows developers to create third party packages +that modify or augment the build process behavior. + +A simple way of doing that is to hook in new or existing +commands and ``setup()`` arguments just by defining "entry points". These +are mappings from command or argument names to a specification of where to +import a handler from. (See the section on :ref:`Dynamic Discovery of +Services and Plugins` for some more background on entry points). + +The following sections describe the most common procedures for extending +the ``distutils`` functionality used by ``setuptools``. + +.. important:: + Any entry-point defined in your ``setup.cfg``, ``setup.py`` or + ``pyproject.toml`` files are not immediately available for use. Your + package needs to be installed first, then ``setuptools`` will be able to + access these entry points. For example consider a ``Project-A`` that + defines entry points. When building ``Project-A``, these will not be + available. If ``Project-B`` declares a :doc:`build system requirement + ` on ``Project-A``, then ``setuptools`` + will be able to use ``Project-A``' customizations. + +Customizing Commands +-------------------- + +Both ``setuptools`` and ``distutils`` are structured around the *command design +pattern*. This means that each main action executed when building a +distribution package (such as creating a :term:`sdist ` +or :term:`wheel`) correspond to the implementation of a Python class. + +Originally in ``distutils``, these commands would correspond to actual CLI +arguments that could be passed to the ``setup.py`` script to trigger a +different aspect of the build. In ``setuptools``, however, these command +objects are just a design abstraction that encapsulate logic and help to +organise the code. + +You can overwrite existing commands (or add new ones) by defining entry +points in the ``distutils.commands`` group. For example, if you wanted to add +a ``foo`` command, you might add something like this to your project: + +.. code-block:: ini + + # setup.cfg + ... + [options.entry_points] + distutils.commands = + foo = mypackage.some_module:foo + +Assuming, of course, that the ``foo`` class in ``mypackage.some_module`` is +a ``setuptools.Command`` subclass (documented below). + +Once a project containing such entry points has been activated on ``sys.path``, +(e.g. by running ``pip install``) the command(s) will be available to any +``setuptools``-based project. In fact, this is +how setuptools' own commands are installed: the setuptools project's setup +script defines entry points for them! + +The commands ``sdist``, ``build_py`` and ``build_ext`` are especially useful +to customize ``setuptools`` builds. Note however that when overwriting existing +commands, you should be very careful to maintain API compatibility. +Custom commands should try to replicate the same overall behavior as the +original classes, and when possible, even inherit from them. + +You should also consider handling exceptions such as ``CompileError``, +``LinkError``, ``LibError``, among others. These exceptions are available in +the ``setuptools.errors`` module. + +.. autoclass:: setuptools.Command + :members: + + +Supporting sdists and editable installs in ``build`` sub-commands +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +``build`` sub-commands (like ``build_py`` and ``build_ext``) +are encouraged to implement the following protocol: + +.. autoclass:: setuptools.command.build.SubCommand + :members: + + +Adding Arguments +---------------- + +.. warning:: Adding arguments to setup is discouraged as such arguments + are only supported through imperative execution and not supported through + declarative config. + +Sometimes, your commands may need additional arguments to the ``setup()`` +call. You can enable this by defining entry points in the +``distutils.setup_keywords`` group. For example, if you wanted a ``setup()`` +argument called ``bar_baz``, you might add something like this to your +extension project: + +.. code-block:: ini + + # setup.cfg + ... + [options.entry_points] + distutils.commands = + foo = mypackage.some_module:foo + distutils.setup_keywords = + bar_baz = mypackage.some_module:validate_bar_baz + +The idea here is that the entry point defines a function that will be called +to validate the ``setup()`` argument, if it's supplied. The ``Distribution`` +object will have the initial value of the attribute set to ``None``, and the +validation function will only be called if the ``setup()`` call sets it to +a non-``None`` value. Here's an example validation function:: + + def assert_bool(dist, attr, value): + """Verify that value is True, False, 0, or 1""" + if bool(value) != value: + raise SetupError( + f"{attr!r} must be a boolean value (got {value!r}" + ) + +Your function should accept three arguments: the ``Distribution`` object, +the attribute name, and the attribute value. It should raise a +``SetupError`` (from the ``setuptools.errors`` module) if the argument +is invalid. Remember, your function will only be called with non-``None`` values, +and the default value of arguments defined this way is always ``None``. So, your +commands should always be prepared for the possibility that the attribute will +be ``None`` when they access it later. + +If more than one active distribution defines an entry point for the same +``setup()`` argument, *all* of them will be called. This allows multiple +extensions to define a common argument, as long as they agree on +what values of that argument are valid. + + +Customizing Distribution Options +-------------------------------- + +Plugins may wish to extend or alter the options on a ``Distribution`` object to +suit the purposes of that project. For example, a tool that infers the +``Distribution.version`` from SCM-metadata may need to hook into the +option finalization. To enable this feature, Setuptools offers an entry +point ``setuptools.finalize_distribution_options``. That entry point must +be a callable taking one argument (the ``Distribution`` instance). + +If the callable has an ``.order`` property, that value will be used to +determine the order in which the hook is called. Lower numbers are called +first and the default is zero (0). + +Plugins may read, alter, and set properties on the distribution, but each +plugin is encouraged to load the configuration/settings for their behavior +independently. + + +Defining Additional Metadata +---------------------------- + +Some extensible applications and frameworks may need to define their own kinds +of metadata, which they can then access using the :mod:`importlib.metadata` APIs. +Ordinarily, this is done by having plugin +developers include additional files in their ``ProjectName.egg-info`` +directory. However, since it can be tedious to create such files by hand, you +may want to create an extension that will create the necessary files +from arguments to ``setup()``, in much the same way that ``setuptools`` does +for many of the ``setup()`` arguments it adds. See the section below for more +details. + + +.. _Adding new EGG-INFO Files: + +Adding new EGG-INFO Files +~~~~~~~~~~~~~~~~~~~~~~~~~ + +Some extensible applications or frameworks may want to allow third parties to +develop plugins with application or framework-specific metadata included in +the plugins' EGG-INFO directory, for easy access via the ``pkg_resources`` +metadata API. The easiest way to allow this is to create an extension +to be used from the plugin projects' setup scripts (via ``setup_requires``) +that defines a new setup keyword, and then uses that data to write an EGG-INFO +file when the ``egg_info`` command is run. + +The ``egg_info`` command looks for extension points in an ``egg_info.writers`` +group, and calls them to write the files. Here's a simple example of an +extension defining a setup argument ``foo_bar``, which is a list of +lines that will be written to ``foo_bar.txt`` in the EGG-INFO directory of any +project that uses the argument: + +.. code-block:: ini + + # setup.cfg + ... + [options.entry_points] + distutils.setup_keywords = + foo_bar = setuptools.dist:assert_string_list + egg_info.writers = + foo_bar.txt = setuptools.command.egg_info:write_arg + +This simple example makes use of two utility functions defined by setuptools +for its own use: a routine to validate that a setup keyword is a sequence of +strings, and another one that looks up a setup argument and writes it to +a file. Here's what the writer utility looks like:: + + def write_arg(cmd, basename, filename): + argname = os.path.splitext(basename)[0] + value = getattr(cmd.distribution, argname, None) + if value is not None: + value = "\n".join(value) + "\n" + cmd.write_or_delete_file(argname, filename, value) + +As you can see, ``egg_info.writers`` entry points must be a function taking +three arguments: a ``egg_info`` command instance, the basename of the file to +write (e.g. ``foo_bar.txt``), and the actual full filename that should be +written to. + +In general, writer functions should honor the command object's ``dry_run`` +setting when writing files, and use ``logging`` to do any console output. +The easiest way to conform to this requirement is to use +the ``cmd`` object's ``write_file()``, ``delete_file()``, and +``write_or_delete_file()`` methods exclusively for your file operations. +See those methods' docstrings for more details. + + +.. _Adding Support for Revision Control Systems: + +Adding Support for Revision Control Systems +------------------------------------------------- + +If the files you want to include in the source distribution are tracked using +Git, Mercurial or SVN, you can use the following packages to achieve that: + +- Git and Mercurial: :pypi:`setuptools_scm` +- SVN: :pypi:`setuptools_svn` + +If you would like to create a plugin for ``setuptools`` to find files tracked +by another revision control system, you can do so by adding an entry point to +the ``setuptools.file_finders`` group. The entry point should be a function +accepting a single directory name, and should yield all the filenames within +that directory (and any subdirectories thereof) that are under revision +control. + +For example, if you were going to create a plugin for a revision control system +called "foobar", you would write a function something like this: + +.. code-block:: python + + def find_files_for_foobar(dirname): + ... # loop to yield paths that start with `dirname` + +And you would register it in a setup script using something like this: + +.. code-block:: ini + + # setup.cfg + ... + + [options.entry_points] + setuptools.file_finders = + foobar = my_foobar_module:find_files_for_foobar + +Then, anyone who wants to use your plugin can simply install it, and their +local setuptools installation will be able to find the necessary files. + +It is not necessary to distribute source control plugins with projects that +simply use the other source control system, or to specify the plugins in +``setup_requires``. When you create a source distribution with the ``sdist`` +command, setuptools automatically records what files were found in the +``SOURCES.txt`` file. That way, recipients of source distributions don't need +to have revision control at all. However, if someone is working on a package +by checking out with that system, they will need the same plugin(s) that the +original author is using. + +A few important points for writing revision control file finders: + +* Your finder function MUST return relative paths, created by appending to the + passed-in directory name. Absolute paths are NOT allowed, nor are relative + paths that reference a parent directory of the passed-in directory. + +* Your finder function MUST accept an empty string as the directory name, + meaning the current directory. You MUST NOT convert this to a dot; just + yield relative paths. So, yielding a subdirectory named ``some/dir`` under + the current directory should NOT be rendered as ``./some/dir`` or + ``/somewhere/some/dir``, but *always* as simply ``some/dir`` + +* Your finder function SHOULD NOT raise any errors, and SHOULD deal gracefully + with the absence of needed programs (i.e., ones belonging to the revision + control system itself. It *may*, however, use ``logging.warning()`` to + inform the user of the missing program(s). + + +.. _distutils: https://docs.python.org/3.9/library/distutils.html + + +Final Remarks +------------- + +* To use a ``setuptools`` plugin, your users will need to add your package as a + build requirement to their build-system configuration. Please check out our + guides on :doc:`/userguide/dependency_management` for more information. + +* Directly calling ``python setup.py ...`` is considered a **deprecated** practice. + You should not add new commands to ``setuptools`` expecting them to be run + via this interface. diff --git a/docs/userguide/index.rst b/docs/userguide/index.rst new file mode 100644 index 0000000000..d631c5d8ac --- /dev/null +++ b/docs/userguide/index.rst @@ -0,0 +1,48 @@ +================================================== +Building and Distributing Packages with Setuptools +================================================== + +The first step towards sharing a Python library or program is to build a +distribution package [#package-overload]_. This includes adding a set of +additional files containing metadata and configuration to not only instruct +``setuptools`` on how the distribution should be built but also +to help installer (such as :pypi:`pip`) during the installation process. + +This document contains information to help Python developers through this +process. Please check the :doc:`/userguide/quickstart` for an overview of +the workflow. + +Also note that ``setuptools`` is what is known in the community as :pep:`build +backend <517#terminology-and-goals>`, user facing interfaces are provided by tools +such as :pypi:`pip` and :pypi:`build`. To use ``setuptools``, one must +explicitly create a ``pyproject.toml`` file as described :doc:`/build_meta`. + + +Contents +======== + +.. toctree:: + :maxdepth: 1 + + quickstart + package_discovery + dependency_management + development_mode + entry_point + datafiles + ext_modules + distribution + miscellaneous + extension + declarative_config + pyproject_config + +--- + +.. rubric:: Notes + +.. [#package-overload] + A :term:`Distribution Package` is also referred in the Python community simply as "package" + Unfortunately, this jargon might be a bit confusing for new users because the term package + can also to refer any :term:`directory ` (or sub directory) used to organize + :term:`modules ` and auxiliary files. diff --git a/docs/userguide/miscellaneous.rst b/docs/userguide/miscellaneous.rst new file mode 100644 index 0000000000..1b493fba3b --- /dev/null +++ b/docs/userguide/miscellaneous.rst @@ -0,0 +1,207 @@ +.. _Controlling files in the distribution: + +Controlling files in the distribution +===================================== + +For the most common use cases, ``setuptools`` will automatically find out which +files are necessary for distributing the package. More precisely, the following +files are included in a source distribution by default: + +- :term:`pure Python module ` files implied by the ``py-modules`` and ``packages`` + configuration parameters in ``pyproject.toml`` and/or equivalent + in ``setup.cfg``/``setup.py``; +- C source files mentioned in the ``ext_modules`` or ``libraries`` + ``setup()`` arguments; +- Files that match the following glob patterns: ``tests/test*.py``, + ``test/test*.py``; +- Scripts specified by the ``scripts-files`` configuration parameter + in ``pyproject.toml`` or ``scripts`` in ``setup.py``/``setup.cfg``; +- All files specified by the ``package-data`` and ``data-files`` + configuration parameters in ``pyproject.toml`` and/or equivalent + in ``setup.cfg``/``setup.py``; +- The file specified by the ``license_file`` option in ``setup.cfg``; +- All files specified by the ``license-files`` configuration parameter + in ``pyproject.toml`` and/or equivalent in ``setup.cfg``/``setup.py``; + note that if you don't explicitly set this parameter, ``setuptools`` + will include any files that match the following glob patterns: + ``LICEN[CS]E*``, ``COPYING*``, ``NOTICE*``, ``AUTHORS**``; +- ``pyproject.toml``; +- ``setup.cfg``; +- ``setup.py``; +- ``README``, ``README.txt``, ``README.rst`` or ``README.md``; +- ``MANIFEST.in`` + +Please note that the list above is guaranteed to work with the last stable version +of ``setuptools``. The behavior of older versions might differ. + +.. note:: + .. versionadded:: v69.0.0 + ``setuptools`` will attempt to include type information files + by default in the distribution + (``.pyi`` and ``py.typed``, as specified in :pep:`561`), + as long as they are contained inside of a package directory + (for the time being there is no automatic support for top-level ``.pyi`` files). + + *Please note however that this feature is* **EXPERIMENTAL** *and may change in + the future.* + + If you have ``.pyi`` and ``py.typed`` files in your project, but do not + wish to distribute them, you can opt out by setting + :doc:`exclude-package-data ` to remove them. + +However, when building more complex packages (e.g. packages that include +non-Python files, or that need to use custom C headers), you might find that +not all files present in your project folder are included in package +:term:`distribution archive `. + +If you are using a :wiki:`Revision Control System`, such as git_ or mercurial_, +and your source distributions only need to include files that you're +tracking in revision control, you can use a ``setuptools`` :ref:`plugin `, such as :pypi:`setuptools-scm` or +:pypi:`setuptools-svn` to automatically include all tracked files into the ``sdist``. + +.. _Using MANIFEST.in: + +Alternatively, if you need finer control over the files (e.g. you don't want to +distribute :wiki:`CI/CD`-related files) or you need automatically generated files, +you can add a ``MANIFEST.in`` file at the root of your project, +to specify any files that the default file location algorithm doesn't catch. + +This file contains instructions that tell ``setuptools`` which files exactly +should be part of the ``sdist`` (or not). + +.. attention:: + Please note that ``setuptools`` supports the ``MANIFEST.in``, + and not ``MANIFEST`` (no extension). Any documentation, tutorial or example + that recommends using ``MANIFEST`` (no extension) is likely outdated. + +.. tip:: + The ``MANIFEST.in`` file contains commands that allow you to discover and + manipulate lists of files. There are many commands that can be used with + different objectives, but you should try to not make your ``MANIFEST.in`` + file too fine grained. + + A good idea is to start with a ``graft`` command (to add all + files inside a set of directories) and then fine tune the file selection + by removing the excess or adding isolated files. + + +A :file:`MANIFEST.in` file consists of commands, one per line, instructing +setuptools to add or remove some set of files from the sdist. The commands +are: + +========================================================= ================================================================================================== +Command Description +========================================================= ================================================================================================== +:samp:`include {pat1} {pat2} ...` Add all files matching any of the listed patterns + (Files must be given as paths relative to the root of the project) +:samp:`exclude {pat1} {pat2} ...` Remove all files matching any of the listed patterns + (Files must be given as paths relative to the root of the project) +:samp:`recursive-include {dir-pattern} {pat1} {pat2} ...` Add all files under directories matching ``dir-pattern`` that match any of the listed patterns +:samp:`recursive-exclude {dir-pattern} {pat1} {pat2} ...` Remove all files under directories matching ``dir-pattern`` that match any of the listed patterns +:samp:`global-include {pat1} {pat2} ...` Add all files anywhere in the source tree matching any of the listed patterns +:samp:`global-exclude {pat1} {pat2} ...` Remove all files anywhere in the source tree matching any of the listed patterns +:samp:`graft {dir-pattern}` Add all files under directories matching ``dir-pattern`` +:samp:`prune {dir-pattern}` Remove all files under directories matching ``dir-pattern`` +========================================================= ================================================================================================== + +The patterns here are glob-style patterns: ``*`` matches zero or more regular +filename characters (on Unix, everything except forward slash; on Windows, +everything except backslash and colon); ``?`` matches a single regular filename +character, and ``[chars]`` matches any one of the characters between the square +brackets (which may contain character ranges, e.g., ``[a-z]`` or +``[a-fA-F0-9]``). Setuptools also has support for ``**`` matching +zero or more characters including forward slash, backslash, and colon. + +Directory patterns are relative to the root of the project directory; e.g., +``graft example*`` will include a directory named :file:`examples` in the +project root but will not include :file:`docs/examples/`. + +File & directory names in :file:`MANIFEST.in` should be ``/``-separated; +setuptools will automatically convert the slashes to the local platform's +appropriate directory separator. + +Commands are processed in the order they appear in the :file:`MANIFEST.in` +file. For example, given the commands: + +.. code-block:: bash + + graft tests + global-exclude *.py[cod] + +the contents of the directory tree :file:`tests` will first be added to the +sdist, and then after that all files in the sdist with a ``.pyc``, ``.pyo``, or +``.pyd`` extension will be removed from the sdist. If the commands were in the +opposite order, then ``*.pyc`` files etc. would be only be removed from what +was already in the sdist before adding :file:`tests`, and if :file:`tests` +happened to contain any ``*.pyc`` files, they would end up included in the +sdist because the exclusion happened before they were included. + +An example of ``MANIFEST.in`` for a simple project that organized according to a +:ref:`src-layout` is: + +.. code-block:: bash + + # MANIFEST.in -- just for illustration + graft src + graft tests + graft docs + # `-> adds all files inside a directory + + include tox.ini + # `-> matches file paths relative to the root of the project + + global-exclude *~ *.py[cod] *.so + # `-> matches file names (regardless of directory) + +Once the correct files are present in the ``sdist``, they can then be used by +binary extensions during the build process, or included in the final +:term:`wheel ` [#build-process]_ if you configure ``setuptools`` with +``include_package_data=True``. + +.. important:: + Please note that, when using ``include_package_data=True``, only files **inside + the package directory** are included in the final ``wheel``, by default. + + So for example, if you create a :term:`Python project ` that uses + :pypi:`setuptools-scm` and have a ``tests`` directory outside of the package + folder, the ``tests`` directory will be present in the ``sdist`` but not in the + ``wheel`` [#wheel-vs-sdist]_. + + See :doc:`/userguide/datafiles` for more information. + + +.. _Caching and Troubleshooting: + +Caching and Troubleshooting +=========================== + +Setuptools automatically creates a few directories to host build artefacts and +cache files, such as ``build``, ``dist``, ``*.egg-info``. While cache is +useful to speed up incremental builds, in some edge cases it might become +stale. If you feel that caching is causing problems to your build, specially +after changes in configuration or in the directory/file structure., consider +removing ``build``, ``dist``, ``*.egg-info`` [#PKG-INFO]_ before rebuilding or +reinstalling your project. + +---- + +.. [#build-process] + You can think about the build process as two stages: first the ``sdist`` + will be created and then the ``wheel`` will be produced from that ``sdist``. + +.. [#wheel-vs-sdist] + This happens because the ``sdist`` can contain files that are useful during + development or the build process itself, but not in runtime (e.g. tests, + docs, examples, etc...). + The ``wheel``, on the other hand, is a file format that has been optimized + and is ready to be unpacked into a running installation of Python or + :term:`Virtual Environment`. + Therefore it only contains items that are required during runtime. + +.. [#PKG-INFO] + When working from an extracted sdist (e.g. for patching), you might also consider removing + the ``PKG-INFO`` file to force its recreation. + +.. _git: https://git-scm.com +.. _mercurial: https://www.mercurial-scm.org diff --git a/docs/userguide/package_discovery.rst b/docs/userguide/package_discovery.rst new file mode 100644 index 0000000000..c33877e1f6 --- /dev/null +++ b/docs/userguide/package_discovery.rst @@ -0,0 +1,583 @@ +.. _`package_discovery`: + +======================================== +Package Discovery and Namespace Packages +======================================== + +.. note:: + a full specification for the keywords supplied to ``setup.cfg`` or + ``setup.py`` can be found at :doc:`keywords reference ` + +.. important:: + The examples provided here are only to demonstrate the functionality + introduced. More metadata and options arguments need to be supplied + if you want to replicate them on your system. If you are completely + new to setuptools, the :doc:`quickstart` section is a good place to start. + +``Setuptools`` provides powerful tools to handle package discovery, including +support for namespace packages. + +Normally, you would specify the packages to be included manually in the following manner: + +.. tab:: setup.cfg + + .. code-block:: ini + + [options] + #... + packages = + mypkg + mypkg.subpkg1 + mypkg.subpkg2 + +.. tab:: setup.py + + .. code-block:: python + + setup( + # ... + packages=['mypkg', 'mypkg.subpkg1', 'mypkg.subpkg2'] + ) + +.. tab:: pyproject.toml + + .. code-block:: toml + + # ... + [tool.setuptools] + packages = ["mypkg", "mypkg.subpkg1", "mypkg.subpkg2"] + # ... + + +If your packages are not in the root of the repository or do not correspond +exactly to the directory structure, you also need to configure ``package_dir``: + +.. tab:: setup.cfg + + .. code-block:: ini + + [options] + # ... + package_dir = + = src + # directory containing all the packages (e.g. src/mypkg, src/mypkg/subpkg1, ...) + # OR + package_dir = + mypkg = lib + # mypkg.module corresponds to lib/module.py + mypkg.subpkg1 = lib1 + # mypkg.subpkg1.module1 corresponds to lib1/module1.py + mypkg.subpkg2 = lib2 + # mypkg.subpkg2.module2 corresponds to lib2/module2.py + # ... + +.. tab:: setup.py + + .. code-block:: python + + setup( + # ... + package_dir = {"": "src"} + # directory containing all the packages (e.g. src/mypkg, src/mypkg/subpkg1, ...) + ) + + # OR + + setup( + # ... + package_dir = { + "mypkg": "lib", # mypkg.module corresponds to lib/module.py + "mypkg.subpkg1": "lib1", # mypkg.subpkg1.module1 corresponds to lib1/module1.py + "mypkg.subpkg2": "lib2", # mypkg.subpkg2.module2 corresponds to lib2/module2.py + # ... + } + ) + +.. tab:: pyproject.toml + + .. code-block:: toml + + [tool.setuptools] + # ... + package-dir = {"" = "src"} + # directory containing all the packages (e.g. src/mypkg1, src/mypkg2) + + # OR + + [tool.setuptools.package-dir] + mypkg = "lib" + # mypkg.module corresponds to lib/module.py + "mypkg.subpkg1" = "lib1" + # mypkg.subpkg1.module1 corresponds to lib1/module1.py + "mypkg.subpkg2" = "lib2" + # mypkg.subpkg2.module2 corresponds to lib2/module2.py + # ... + +This can get tiresome really quickly. To speed things up, you can rely on +setuptools automatic discovery, or use the provided tools, as explained in +the following sections. + +.. important:: + Although ``setuptools`` allows developers to create a very complex mapping + between directory names and package names, it is better to *keep it simple* + and reflect the desired package hierarchy in the directory structure, + preserving the same names. + +.. _auto-discovery: + +Automatic discovery +=================== + +By default ``setuptools`` will consider 2 popular project layouts, each one with +its own set of advantages and disadvantages [#layout1]_ [#layout2]_ as +discussed in the following sections. + +Setuptools will automatically scan your project directory looking for these +layouts and try to guess the correct values for the :ref:`packages ` and :doc:`py_modules ` configuration. + +.. important:: + Automatic discovery will **only** be enabled if you **don't** provide any + configuration for ``packages`` and ``py_modules``. + If at least one of them is explicitly set, automatic discovery will not take place. + + **Note**: specifying ``ext_modules`` might also prevent auto-discover from + taking place, unless your opt into :doc:`pyproject_config` (which will + disable the backward compatible behaviour). + +.. _src-layout: + +src-layout +---------- +The project should contain a ``src`` directory under the project root and +all modules and packages meant for distribution are placed inside this +directory:: + + project_root_directory + ├── pyproject.toml # AND/OR setup.cfg, setup.py + ├── ... + └── src/ + └── mypkg/ + ├── __init__.py + ├── ... + ├── module.py + ├── subpkg1/ + │   ├── __init__.py + │   ├── ... + │   └── module1.py + └── subpkg2/ + ├── __init__.py + ├── ... + └── module2.py + +This layout is very handy when you wish to use automatic discovery, +since you don't have to worry about other Python files or folders in your +project root being distributed by mistake. In some circumstances it can be +also less error-prone for testing or when using :pep:`420`-style packages. +On the other hand you cannot rely on the implicit ``PYTHONPATH=.`` to fire +up the Python REPL and play with your package (you will need an +`editable install`_ to be able to do that). + +.. _flat-layout: + +flat-layout +----------- +*(also known as "adhoc")* + +The package folder(s) are placed directly under the project root:: + + project_root_directory + ├── pyproject.toml # AND/OR setup.cfg, setup.py + ├── ... + └── mypkg/ + ├── __init__.py + ├── ... + ├── module.py + ├── subpkg1/ + │   ├── __init__.py + │   ├── ... + │   └── module1.py + └── subpkg2/ + ├── __init__.py + ├── ... + └── module2.py + +This layout is very practical for using the REPL, but in some situations +it can be more error-prone (e.g. during tests or if you have a bunch +of folders or Python files hanging around your project root). + +To avoid confusion, file and folder names that are used by popular tools (or +that correspond to well-known conventions, such as distributing documentation +alongside the project code) are automatically filtered out in the case of +*flat-layout*: + +.. autoattribute:: setuptools.discovery.FlatLayoutPackageFinder.DEFAULT_EXCLUDE + +.. autoattribute:: setuptools.discovery.FlatLayoutModuleFinder.DEFAULT_EXCLUDE + +.. warning:: + If you are using auto-discovery with *flat-layout*, ``setuptools`` will + refuse to create :term:`distribution archives ` with + multiple top-level packages or modules. + + This is done to prevent common errors such as accidentally publishing code + not meant for distribution (e.g. maintenance-related scripts). + + Users that purposefully want to create multi-package distributions are + advised to use :ref:`custom-discovery` or the ``src-layout``. + +There is also a handy variation of the *flat-layout* for utilities/libraries +that can be implemented with a single Python file: + +single-module distribution +^^^^^^^^^^^^^^^^^^^^^^^^^^ + +A standalone module is placed directly under the project root, instead of +inside a package folder:: + + project_root_directory + ├── pyproject.toml # AND/OR setup.cfg, setup.py + ├── ... + └── single_file_lib.py + + +.. _custom-discovery: + +Custom discovery +================ + +If the automatic discovery does not work for you +(e.g., you want to *include* in the distribution top-level packages with +reserved names such as ``tasks``, ``example`` or ``docs``, or you want to +*exclude* nested packages that would be otherwise included), you can use +the provided tools for package discovery: + +.. tab:: setup.cfg + + .. code-block:: ini + + [options] + packages = find: + #or + packages = find_namespace: + +.. tab:: setup.py + + .. code-block:: python + + from setuptools import find_packages + # or + from setuptools import find_namespace_packages + +.. tab:: pyproject.toml + + .. code-block:: toml + + # ... + [tool.setuptools.packages] + find = {} # Scanning implicit namespaces is active by default + # OR + find = {namespaces = false} # Disable implicit namespaces + + +Finding simple packages +----------------------- +Let's start with the first tool. ``find:`` (``find_packages()``) takes a source +directory and two lists of package name patterns to exclude and include, and +then returns a list of ``str`` representing the packages it could find. To use +it, consider the following directory:: + + mypkg + ├── pyproject.toml # AND/OR setup.cfg, setup.py + └── src + ├── pkg1 + │   └── __init__.py + ├── pkg2 + │   └── __init__.py + ├── additional + │   └── __init__.py + └── pkg + └── namespace + └── __init__.py + +To have setuptools to automatically include packages found +in ``src`` that start with the name ``pkg`` and not ``additional``: + +.. tab:: setup.cfg + + .. code-block:: ini + + [options] + packages = find: + package_dir = + =src + + [options.packages.find] + where = src + include = pkg* + # alternatively: `exclude = additional*` + + .. note:: + ``pkg`` does not contain an ``__init__.py`` file, therefore + ``pkg.namespace`` is ignored by ``find:`` (see ``find_namespace:`` below). + +.. tab:: setup.py + + .. code-block:: python + + setup( + # ... + packages=find_packages( + where='src', + include=['pkg*'], # alternatively: `exclude=['additional*']` + ), + package_dir={"": "src"} + # ... + ) + + + .. note:: + ``pkg`` does not contain an ``__init__.py`` file, therefore + ``pkg.namespace`` is ignored by ``find_packages()`` + (see ``find_namespace_packages()`` below). + +.. tab:: pyproject.toml + + .. code-block:: toml + + [tool.setuptools.packages.find] + where = ["src"] + include = ["pkg*"] # alternatively: `exclude = ["additional*"]` + namespaces = false + + .. note:: + When using ``tool.setuptools.packages.find`` in ``pyproject.toml``, + setuptools will consider :pep:`implicit namespaces <420>` by default when + scanning your project directory. + To avoid ``pkg.namespace`` from being added to your package list + you can set ``namespaces = false``. This will prevent any folder + without an ``__init__.py`` file from being scanned. + +.. important:: + ``include`` and ``exclude`` accept strings representing :mod:`glob` patterns. + These patterns should match the **full** name of the Python module (as if it + was written in an ``import`` statement). + + For example if you have ``util`` pattern, it will match + ``util/__init__.py`` but not ``util/files/__init__.py``. + + The fact that the parent package is matched by the pattern will not dictate + if the submodule will be included or excluded from the distribution. + You will need to explicitly add a wildcard (e.g. ``util*``) + if you want the pattern to also match submodules. + +.. _Namespace Packages: + +Finding namespace packages +-------------------------- +``setuptools`` provides ``find_namespace:`` (``find_namespace_packages()``) +which behaves similarly to ``find:`` but works with namespace packages. + +Before diving in, it is important to have a good understanding of what +:pep:`namespace packages <420>` are. Here is a quick recap. + +When you have two packages organized as follows: + +.. code-block:: bash + + /Users/Desktop/timmins/foo/__init__.py + /Library/timmins/bar/__init__.py + +If both ``Desktop`` and ``Library`` are on your ``PYTHONPATH``, then a +namespace package called ``timmins`` will be created automatically for you when +you invoke the import mechanism, allowing you to accomplish the following: + +.. code-block:: pycon + + >>> import timmins.foo + >>> import timmins.bar + +as if there is only one ``timmins`` on your system. The two packages can then +be distributed separately and installed individually without affecting the +other one. + +Now, suppose you decide to package the ``foo`` part for distribution and start +by creating a project directory organized as follows:: + + foo + ├── pyproject.toml # AND/OR setup.cfg, setup.py + └── src + └── timmins + └── foo + └── __init__.py + +If you want the ``timmins.foo`` to be automatically included in the +distribution, then you will need to specify: + +.. tab:: setup.cfg + + .. code-block:: ini + + [options] + package_dir = + =src + packages = find_namespace: + + [options.packages.find] + where = src + + ``find:`` won't work because ``timmins`` doesn't contain ``__init__.py`` + directly, instead, you have to use ``find_namespace:``. + + You can think of ``find_namespace:`` as identical to ``find:`` except it + would count a directory as a package even if it doesn't contain ``__init__.py`` + file directly. + +.. tab:: setup.py + + .. code-block:: python + + setup( + # ... + packages=find_namespace_packages(where='src'), + package_dir={"": "src"} + # ... + ) + + When you use ``find_packages()``, all directories without an + ``__init__.py`` file will be ignored. + On the other hand, ``find_namespace_packages()`` will scan all + directories. + +.. tab:: pyproject.toml + + .. code-block:: toml + + [tool.setuptools.packages.find] + where = ["src"] + + When using ``tool.setuptools.packages.find`` in ``pyproject.toml``, + setuptools will consider :pep:`implicit namespaces <420>` by default when + scanning your project directory. + +After installing the package distribution, ``timmins.foo`` would become +available to your interpreter. + +.. warning:: + Please have in mind that ``find_namespace:`` (setup.cfg), + ``find_namespace_packages()`` (setup.py) and ``find`` (pyproject.toml) will + scan **all** folders that you have in your project directory if you use a + :ref:`flat-layout`. + + If used naïvely, this might result in unwanted files being added to your + final wheel. For example, with a project directory organized as follows:: + + foo + ├── docs + │ └── conf.py + ├── timmins + │ └── foo + │ └── __init__.py + └── tests + └── tests_foo + └── __init__.py + + final users will end up installing not only ``timmins.foo``, but also + ``docs`` and ``tests.tests_foo``. + + A simple way to fix this is to adopt the aforementioned :ref:`src-layout`, + or make sure to properly configure the ``include`` and/or ``exclude`` + accordingly. + +.. tip:: + After :ref:`building your package `, you can have a look if all + the files are correct (nothing missing or extra), by running the following + commands: + + .. code-block:: bash + + tar tf dist/*.tar.gz + unzip -l dist/*.whl + + This requires the ``tar`` and ``unzip`` to be installed in your OS. + On Windows you can also use a GUI program such as 7zip_. + + +Legacy Namespace Packages +========================= +The fact you can create namespace packages so effortlessly above is credited +to :pep:`420`. It used to be more +cumbersome to accomplish the same result. Historically, there were two methods +to create namespace packages. One is the ``pkg_resources`` style supported by +``setuptools`` and the other one being ``pkgutils`` style offered by +``pkgutils`` module in Python. Both are now considered *deprecated* despite the +fact they still linger in many existing packages. These two differ in many +subtle yet significant aspects and you can find out more on `Python packaging +user guide `_. + + +``pkg_resource`` style namespace package +---------------------------------------- +This is the method ``setuptools`` directly supports. Starting with the same +layout, there are two pieces you need to add to it. First, an ``__init__.py`` +file directly under your namespace package directory that contains the +following: + +.. code-block:: python + + __import__("pkg_resources").declare_namespace(__name__) + +And the ``namespace_packages`` keyword in your ``setup.cfg`` or ``setup.py``: + +.. tab:: setup.cfg + + .. code-block:: ini + + [options] + namespace_packages = timmins + +.. tab:: setup.py + + .. code-block:: python + + setup( + # ... + namespace_packages=['timmins'] + ) + +And your directory should look like this + +.. code-block:: bash + + foo + ├── pyproject.toml # AND/OR setup.cfg, setup.py + └── src + └── timmins + ├── __init__.py + └── foo + └── __init__.py + +Repeat the same for other packages and you can achieve the same result as +the previous section. + +``pkgutil`` style namespace package +----------------------------------- +This method is almost identical to the ``pkg_resource`` except that the +``namespace_packages`` declaration is omitted and the ``__init__.py`` +file contains the following: + +.. code-block:: python + + __path__ = __import__('pkgutil').extend_path(__path__, __name__) + +The project layout remains the same and ``pyproject.toml/setup.cfg`` remains the same. + + +---- + + +.. [#layout1] https://blog.ionelmc.ro/2014/05/25/python-packaging/#the-structure +.. [#layout2] https://blog.ionelmc.ro/2017/09/25/rehashing-the-src-layout/ + +.. _editable install: https://pip.pypa.io/en/stable/cli/pip_install/#editable-installs +.. _7zip: https://www.7-zip.org diff --git a/docs/userguide/pyproject_config.rst b/docs/userguide/pyproject_config.rst new file mode 100644 index 0000000000..7c6f3d4d6e --- /dev/null +++ b/docs/userguide/pyproject_config.rst @@ -0,0 +1,299 @@ +.. _pyproject.toml config: + +----------------------------------------------------- +Configuring setuptools using ``pyproject.toml`` files +----------------------------------------------------- + +.. note:: New in 61.0.0 + +.. important:: + If compatibility with legacy builds or versions of tools that don't support + certain packaging standards (e.g. :pep:`517` or :pep:`660`), a simple ``setup.py`` + script can be added to your project [#setupcfg-caveats]_ + (while keeping the configuration in ``pyproject.toml``): + + .. code-block:: python + + from setuptools import setup + + setup() + +Starting with :pep:`621`, the Python community selected ``pyproject.toml`` as +a standard way of specifying *project metadata*. +``Setuptools`` has adopted this standard and will use the information contained +in this file as an input in the build process. + +The example below illustrates how to write a ``pyproject.toml`` file that can +be used with ``setuptools``. It contains two TOML tables (identified by the +``[table-header]`` syntax): ``build-system`` and ``project``. +The ``build-system`` table is used to tell the build frontend (e.g. +:pypi:`build` or :pypi:`pip`) to use ``setuptools`` and any other plugins (e.g. +``setuptools-scm``) to build the package. +The ``project`` table contains metadata fields as described by the +:doc:`PyPUG:guides/writing-pyproject-toml` guide. + +.. _example-pyproject-config: + +.. code-block:: toml + + [build-system] + requires = ["setuptools", "setuptools-scm"] + build-backend = "setuptools.build_meta" + + [project] + name = "my_package" + authors = [ + {name = "Josiah Carberry", email = "josiah_carberry@brown.edu"}, + ] + description = "My package description" + readme = "README.rst" + requires-python = ">=3.8" + keywords = ["one", "two"] + license = "BSD-3-Clause" + classifiers = [ + "Framework :: Django", + "Programming Language :: Python :: 3", + ] + dependencies = [ + "requests", + 'importlib-metadata; python_version<"3.10"', + ] + dynamic = ["version"] + + [project.optional-dependencies] + pdf = ["ReportLab>=1.2", "RXP"] + rest = ["docutils>=0.3", "pack ==1.1, ==1.3"] + + [project.scripts] + my-script = "my_package.module:function" + + # ... other project metadata fields as listed in: + # https://packaging.python.org/en/latest/guides/writing-pyproject-toml/ + +.. important:: + Support for + :external+PyPUG:ref:`project.license-files ` + and SPDX license expressions in + :external+PyPUG:ref:`project.license ` (:pep:`639`) + were introduced in version 77.0.0. + + +.. _setuptools-table: + +Setuptools-specific configuration +================================= + +While the standard ``project`` table in the ``pyproject.toml`` file covers most +of the metadata used during the packaging process, there are still some +``setuptools``-specific configurations that can be set by users that require +customization. +These configurations are completely optional and probably can be skipped when +creating simple packages. +They are equivalent to the :doc:`/references/keywords` used by the ``setup.py`` +file, and can be set via the ``tool.setuptools`` table: + +========================= =========================== ========================= +Key Value Type (TOML) Notes +========================= =========================== ========================= +``py-modules`` array See tip below. +``ext-modules`` array of **Experimental** - Each item corresponds to a + tables/inline-tables :class:`setuptools.Extension` object and may define + the associated parameters in :wiki:`kebab-case`. +``packages`` array or ``find`` directive See tip below. +``package-dir`` table/inline-table Used when explicitly/manually listing ``packages``. +------------------------- --------------------------- ------------------------- +``package-data`` table/inline-table See :doc:`/userguide/datafiles`. +``include-package-data`` boolean ``True`` by default (only when using ``pyproject.toml`` project metadata/config). + See :doc:`/userguide/datafiles`. +``exclude-package-data`` table/inline-table Empty by default. See :doc:`/userguide/datafiles`. +------------------------- --------------------------- ------------------------- +``license-files`` array of glob patterns **Deprecated** - use ``project.license-files`` instead. See + :external+PyPUG:ref:`Writing your pyproject.toml ` + (by default: ``['LICEN[CS]E*', 'COPYING*', 'NOTICE*', 'AUTHORS*']``) +``data-files`` table/inline-table **Discouraged** - check :doc:`/userguide/datafiles`. + Whenever possible, consider using data files inside the package directories. +``script-files`` array **Discouraged** - equivalent to the ``script`` keyword in ``setup.py``. + Whenever possible, please use ``project.scripts`` instead. +------------------------- --------------------------- ------------------------- +``provides`` array *ignored by pip when installing packages* +``obsoletes`` array *ignored by pip when installing packages* +``platforms`` array Sets the ``Platform`` :doc:`core-metadata ` field + (*ignored by pip when installing packages*). +------------------------- --------------------------- ------------------------- +``zip-safe`` boolean **Obsolete** - only relevant for ``pkg_resources``, ``easy_install`` and ``setup.py install`` + in the context of :doc:`eggs ` (deprecated). +``eager-resources`` array **Obsolete** - only relevant for ``pkg_resources``, ``easy_install`` and ``setup.py install`` + in the context of :doc:`eggs ` (deprecated). +``namespace-packages`` array **Deprecated** - use implicit namespaces instead (:pep:`420`). +========================= =========================== ========================= + +.. note:: + The `TOML value types`_ ``array`` and ``table/inline-table`` are roughly + equivalent to the Python's :obj:`list` and :obj:`dict` data types, respectively. + +Please note that some of these configurations are deprecated, obsolete or at least +discouraged, but they are made available to ensure portability. +Deprecated and obsolete configurations may be removed in future versions of ``setuptools``. +New packages should avoid relying on discouraged fields if possible, and +existing packages should consider migrating to alternatives. + +.. tip:: + When both ``py-modules`` and ``packages`` are left unspecified, + ``setuptools`` will attempt to perform :ref:`auto-discovery`, which should + cover most popular project directory organization techniques, such as the + :ref:`src-layout` and the :ref:`flat-layout`. + + However if your project does not follow these conventional layouts + (e.g. you want to use a ``flat-layout`` but at the same time have custom + directories at the root of your project), you might need to use the ``find`` + directive [#directives]_ as shown below: + + .. code-block:: toml + + [tool.setuptools.packages.find] + where = ["src"] # list of folders that contain the packages (["."] by default) + include = ["my_package*"] # package names should match these glob patterns (["*"] by default) + exclude = ["my_package.tests*"] # exclude packages matching these glob patterns (empty by default) + namespaces = false # to disable scanning PEP 420 namespaces (true by default) + + Note that the glob patterns in the example above need to be matched + by the **entire** package name. This means that if you specify ``exclude = ["tests"]``, + modules like ``tests.my_package.test1`` will still be included in the distribution + (to remove them, add a wildcard to the end of the pattern: ``"tests*"``). + + Alternatively, you can explicitly list the packages in modules: + + .. code-block:: toml + + [tool.setuptools] + packages = ["my_package"] + + If you want to publish a distribution that does not include any Python module + (e.g. a "meta-distribution" that just aggregate dependencies), please + consider something like the following: + + .. code-block:: toml + + [tool.setuptools] + packages = [] + + +.. _dynamic-pyproject-config: + +Dynamic Metadata +================ + +Note that in the first example of this page we use ``dynamic`` to identify +which metadata fields are dynamically computed during the build by either +``setuptools`` itself or the plugins installed via ``build-system.requires`` +(e.g. ``setuptools-scm`` is capable of deriving the current project version +directly from the ``git`` :wiki:`version control` system). + +Currently the following fields can be listed as dynamic: ``version``, +``classifiers``, ``description``, ``entry-points``, ``scripts``, +``gui-scripts`` and ``readme``. +When these fields are expected to be provided by ``setuptools`` a +corresponding entry is required in the ``tool.setuptools.dynamic`` table +[#entry-points]_. For example: + +.. code-block:: toml + + # ... + [project] + name = "my_package" + dynamic = ["version", "readme"] + # ... + [tool.setuptools.dynamic] + version = {attr = "my_package.__version__"} # any module attribute compatible with ast.literal_eval + readme = {file = ["README.rst", "USAGE.rst"]} + +In the ``dynamic`` table, the ``attr`` directive [#directives]_ will read an +attribute from the given module [#attr]_, while ``file`` will read the contents +of all given files and concatenate them in a single string. + +========================== =================== ================================================================================================= +Key Directive Notes +========================== =================== ================================================================================================= +``version`` ``attr``, ``file`` +``readme`` ``file`` Here you can also set ``"content-type"``: + + ``readme = {file = ["README.txt", "USAGE.txt"], content-type = "text/plain"}`` + + If ``content-type`` is not given, ``"text/x-rst"`` is used by default. +``description`` ``file`` One-line text (no line breaks) +``classifiers`` ``file`` Multi-line text with one classifier per line +``entry-points`` ``file`` INI format following :doc:`PyPUG:specifications/entry-points` + (``console_scripts`` and ``gui_scripts`` can be included) +``dependencies`` ``file`` *subset* of the ``requirements.txt`` format + (``#`` comments and blank lines excluded) **BETA** +``optional-dependencies`` ``file`` *subset* of the ``requirements.txt`` format per group + (``#`` comments and blank lines excluded) **BETA** +========================== =================== ================================================================================================= + +Supporting ``file`` for dependencies is meant for a convenience for packaging +applications with possibly strictly versioned dependencies. + +Library packagers are discouraged from using overly strict (or "locked") +dependency versions in their ``dependencies`` and ``optional-dependencies``. + +Currently, when specifying ``optional-dependencies`` dynamically, all of the groups +must be specified dynamically; one can not specify some of them statically and +some of them dynamically. + +Also note that the file format for specifying dependencies resembles a ``requirements.txt`` file, +however please keep in mind that all non-comment lines must conform with :pep:`508` +(``pip`` specific syntaxes, e.g. ``-c/-r/-e`` and other flags, are not supported). + + +.. note:: + If you are using an old version of ``setuptools``, you might need to ensure + that all files referenced by the ``file`` directive are included in the ``sdist`` + (you can do that via ``MANIFEST.in`` or using plugins such as ``setuptools-scm``, + please have a look on :doc:`/userguide/miscellaneous` for more information). + + .. versionchanged:: 66.1.0 + Newer versions of ``setuptools`` will automatically add these files to the ``sdist``. + +It is advisable to use literal values together with ``attr`` (e.g. ``str``, +``tuple[str]``, see :func:`ast.literal_eval`). This is recommend +in order to support the common case of a literal value assigned to a variable +in a module containing (directly or indirectly) third-party imports. + +``attr`` first tries to read the value from the module by examining the +module's AST. If that fails, ``attr`` falls back to importing the module, +using :func:`importlib.util.spec_from_file_location` recommended recipe +(see :ref:`example on Python docs ` +about "Importing a source file directly"). +Note however that importing the module is error prone since your package is +not installed yet. You may also need to manually add the project directory to +``sys.path`` (via ``setup.py``) in order to be able to do that. + +---- + +.. rubric:: Notes + +.. [#setupcfg-caveats] ``pip`` may allow editable install only with ``pyproject.toml`` + and ``setup.cfg``. However, this behavior may not be consistent over various ``pip`` + versions and other packaging-related tools + (``setup.py`` is more reliable on those scenarios). + +.. [#entry-points] Dynamic ``scripts`` and ``gui-scripts`` are a special case. + When resolving these metadata keys, ``setuptools`` will look for + ``tool.setuptools.dynamic.entry-points``, and use the values of the + ``console_scripts`` and ``gui_scripts`` :doc:`entry-point groups + `. + +.. [#directives] In the context of this document, *directives* are special TOML + values that are interpreted differently by ``setuptools`` (usually triggering an + associated function). Most of the times they correspond to a special TOML table + (or inline-table) with a single top-level key. + For example, you can have the ``{find = {where = ["src"], exclude=["tests*"]}}`` + directive for ``tool.setuptools.packages``, or ``{attr = "mymodule.attr"}`` + directive for ``tool.setuptools.dynamic.version``. + +.. [#attr] ``attr`` is meant to be used when the module attribute is statically + specified (e.g. as a string). As a rule of thumb, the + attribute should be able to be parsed with :func:`ast.literal_eval`, and + should not be modified or re-assigned. + +.. _TOML value types: https://toml.io/en/v1.0.0 diff --git a/docs/userguide/quickstart.rst b/docs/userguide/quickstart.rst new file mode 100644 index 0000000000..606654f86c --- /dev/null +++ b/docs/userguide/quickstart.rst @@ -0,0 +1,514 @@ +========== +Quickstart +========== + +Installation +============ + +You can install the latest version of ``setuptools`` using :pypi:`pip`:: + + pip install --upgrade setuptools[core] + +Most of the times, however, you don't have to... + +Instead, when creating new Python packages, it is recommended to use +a command line tool called :pypi:`build`. This tool will automatically download +``setuptools`` and any other build-time dependencies that your project might +have. You just need to specify them in a ``pyproject.toml`` file at the root of +your package, as indicated in the :ref:`following section `. + +.. _install-build: + +You can also :doc:`install build ` using :pypi:`pip`:: + + pip install --upgrade build + +This will allow you to run the command: ``python -m build``. + +.. important:: + Please note that some operating systems might be equipped with + the ``python3`` and ``pip3`` commands instead of ``python`` and ``pip`` + (but they should be equivalent). + If you don't have ``pip`` or ``pip3`` available in your system, please + check out :doc:`pip installation docs `. + + +Every python package must provide a ``pyproject.toml`` and specify +the backend (build system) it wants to use. The distribution can then +be generated with whatever tool that provides a ``build sdist``-like +functionality. + + +.. _basic-use: + +Basic Use +========= + +When creating a Python package, you must provide a ``pyproject.toml`` file +containing a ``build-system`` section similar to the example below: + +.. code-block:: toml + + [build-system] + requires = ["setuptools"] + build-backend = "setuptools.build_meta" + +This section declares what are your build system dependencies, and which +library will be used to actually do the packaging. + +.. note:: + + Package maintainers might be tempted to use ``setuptools[core]`` as the + requirement, given the guidance above. Avoid doing so, as the extra + is currently considered an internal implementation detail and is likely + to go away in the future and the Setuptools team will not support + compatibility for problems arising from packages published with this + extra declared. Vendored packages will satisfy the dependencies in + the most common isolated build scenarios. + +.. note:: + + Historically this documentation has unnecessarily listed ``wheel`` + in the ``requires`` list, and many projects still do that. This is + not recommended, as the backend no longer requires the ``wheel`` + package, and listing it explicitly causes it to be unnecessarily + required for source distribution builds. + You should only include ``wheel`` in ``requires`` if you need to explicitly + access it during build time (e.g. if your project needs a ``setup.py`` + script that imports ``wheel``). + +In addition to specifying a build system, you also will need to add +some package information such as metadata, contents, dependencies, etc. +This can be done in the same ``pyproject.toml`` file, +or in a separated one: ``setup.cfg`` or ``setup.py`` [#setup.py]_. + +The following example demonstrates a minimum configuration +(which assumes the project depends on :pypi:`requests` and +:pypi:`importlib-metadata` to be able to run): + +.. tab:: pyproject.toml + + .. code-block:: toml + + [project] + name = "mypackage" + version = "0.0.1" + dependencies = [ + "requests", + 'importlib-metadata; python_version<"3.10"', + ] + + See :doc:`/userguide/pyproject_config` for more information. + +.. tab:: setup.cfg + + .. code-block:: ini + + [metadata] + name = mypackage + version = 0.0.1 + + [options] + install_requires = + requests + importlib-metadata; python_version<"3.10" + + + See :doc:`/userguide/declarative_config` for more information. + +.. tab:: setup.py [#setup.py]_ + + .. code-block:: python + + from setuptools import setup + + setup( + name='mypackage', + version='0.0.1', + install_requires=[ + 'requests', + 'importlib-metadata; python_version<"3.10"', + ], + ) + + See :doc:`/references/keywords` for more information. + +Finally, you will need to organize your Python code to make it ready for +distributing into something that looks like the following +(optional files marked with ``#``):: + + mypackage + ├── pyproject.toml # and/or setup.cfg/setup.py (depending on the configuration method) + | # README.rst or README.md (a nice description of your package) + | # LICENCE (properly chosen license information, e.g. MIT, BSD-3, GPL-3, MPL-2, etc...) + └── mypackage + ├── __init__.py + └── ... (other Python files) + +With :ref:`build installed in your system `, you can then run:: + + python -m build + +You now have your distribution ready (e.g. a ``tar.gz`` file and a ``.whl`` file +in the ``dist`` directory), which you can :doc:`upload ` to PyPI_! + +Of course, before you release your project to PyPI_, you'll want to add a bit +more information to help people find or learn about your project. +And maybe your project will have grown by then to include a few +dependencies, and perhaps some data files and scripts. In the next few sections, +we will walk through the additional but essential information you need +to specify to properly package your project. + + +.. + TODO: A previous generation of this document included a section called + "Python packaging at a glance". This is a nice title, but the content + removed because it assumed the reader had familiarity with the history of + setuptools and PEP 517. We should take advantage of this nice title and add + this section back, but use it to explain important concepts of the + ecosystem, such as "sdist", "wheel", "index". It would also be nice if we + could have a diagram for that (explaining for example that "wheels" are + built from "sdists" not the source tree). + +.. _setuppy_discouraged: +.. admonition:: Info: Using ``setup.py`` + :class: seealso + + Setuptools offers first class support for ``setup.py`` files as a configuration + mechanism. + + It is important to remember, however, that running this file as a + script (e.g. ``python setup.py sdist``) is strongly **discouraged**, and + that the majority of the command line interfaces are (or will be) **deprecated** + (e.g. ``python setup.py install``, ``python setup.py bdist_wininst``, ...). + + We also recommend users to expose as much as possible configuration in a + more *declarative* way via the :doc:`pyproject.toml ` or + :doc:`setup.cfg `, and keep the ``setup.py`` minimal + with only the dynamic parts (or even omit it completely if applicable). + + See `Why you shouldn't invoke setup.py directly`_ for more background. + +.. _Why you shouldn't invoke setup.py directly: https://blog.ganssle.io/articles/2021/10/setup-py-deprecated.html + + +Overview +======== + +Package discovery +----------------- +For projects that follow a simple directory structure, ``setuptools`` should be +able to automatically detect all :term:`packages ` and +:term:`namespaces `. However, complex projects might include +additional folders and supporting files that not necessarily should be +distributed (or that can confuse ``setuptools`` auto discovery algorithm). + +Therefore, ``setuptools`` provides a convenient way to customize +which packages should be distributed and in which directory they should be +found, as shown in the example below: + +.. tab:: pyproject.toml + + .. code-block:: toml + + # ... + [tool.setuptools.packages] + find = {} # Scan the project directory with the default parameters + + # OR + [tool.setuptools.packages.find] + # All the following settings are optional: + where = ["src"] # ["."] by default + include = ["mypackage*"] # ["*"] by default + exclude = ["mypackage.tests*"] # empty by default + namespaces = false # true by default + +.. tab:: setup.cfg + + .. code-block:: ini + + [options] + packages = find: # OR `find_namespace:` if you want to use namespaces + + [options.packages.find] # (always `find` even if `find_namespace:` was used before) + # This section is optional as well as each of the following options: + where=src # . by default + include=mypackage* # * by default + exclude=mypackage.tests* # empty by default + +.. tab:: setup.py [#setup.py]_ + + .. code-block:: python + + from setuptools import setup, find_packages # or find_namespace_packages + + setup( + # ... + packages=find_packages( + # All keyword arguments below are optional: + where='src', # '.' by default + include=['mypackage*'], # ['*'] by default + exclude=['mypackage.tests'], # empty by default + ), + # ... + ) + +When you pass the above information, alongside other necessary information, +``setuptools`` walks through the directory specified in ``where`` (defaults to ``.``) and filters the packages +it can find following the ``include`` patterns (defaults to ``*``), then it removes +those that match the ``exclude`` patterns (defaults to empty) and returns a list of Python packages. + +For more details and advanced use, go to :ref:`package_discovery`. + +.. tip:: + Starting with version 61.0.0, setuptools' automatic discovery capabilities + have been improved to detect popular project layouts (such as the + :ref:`flat-layout` and :ref:`src-layout`) without requiring any + special configuration. Check out our :ref:`reference docs ` + for more information. + + +Entry points and automatic script creation +------------------------------------------- +Setuptools supports automatic creation of scripts upon installation, that run +code within your package if you specify them as :doc:`entry points +`. +An example of how this feature can be used in ``pip``: +it allows you to run commands like ``pip install`` instead of having +to type ``python -m pip install``. + +The following configuration examples show how to accomplish this: + + +.. tab:: pyproject.toml + + .. code-block:: toml + + [project.scripts] + cli-name = "mypkg.mymodule:some_func" + +.. tab:: setup.cfg + + .. code-block:: ini + + [options.entry_points] + console_scripts = + cli-name = mypkg.mymodule:some_func + +.. tab:: setup.py [#setup.py]_ + + .. code-block:: python + + setup( + # ... + entry_points={ + 'console_scripts': [ + 'cli-name = mypkg.mymodule:some_func', + ] + } + ) + +When this project is installed, a ``cli-name`` executable will be created. +``cli-name`` will invoke the function ``some_func`` in the +``mypkg/mymodule.py`` file when called by the user. +Note that you can also use the ``entry-points`` mechanism to advertise +components between installed packages and implement plugin systems. +For detailed usage, go to :doc:`entry_point`. + + +Dependency management +--------------------- +Packages built with ``setuptools`` can specify dependencies to be automatically +installed when the package itself is installed. +The example below shows how to configure this kind of dependencies: + +.. tab:: pyproject.toml + + .. code-block:: toml + + [project] + # ... + dependencies = [ + "docutils", + "requests <= 0.4", + ] + # ... + +.. tab:: setup.cfg + + .. code-block:: ini + + [options] + install_requires = + docutils + requests <= 0.4 + +.. tab:: setup.py [#setup.py]_ + + .. code-block:: python + + setup( + # ... + install_requires=["docutils", "requests <= 0.4"], + # ... + ) + +Each dependency is represented by a string that can optionally contain version requirements +(e.g. one of the operators <, >, <=, >=, == or !=, followed by a version identifier), +and/or conditional environment markers, e.g. ``sys_platform == "win32"`` +(see :doc:`PyPUG:specifications/version-specifiers` for more information). + +When your project is installed, all of the dependencies not already installed +will be located (via PyPI), downloaded, built (if necessary), and installed. +This, of course, is a simplified scenario. You can also specify groups of +extra dependencies that are not strictly required by your package to work, but +that will provide additional functionalities. +For more advanced use, see :doc:`dependency_management`. + + +.. _Including Data Files: + +Including Data Files +-------------------- +Setuptools offers three ways to specify data files to be included in your packages. +For the simplest use, you can simply use the ``include_package_data`` keyword: + +.. tab:: pyproject.toml + + .. code-block:: toml + + [tool.setuptools] + include-package-data = true + # This is already the default behaviour if you are using + # pyproject.toml to configure your build. + # You can deactivate that with `include-package-data = false` + +.. tab:: setup.cfg + + .. code-block:: ini + + [options] + include_package_data = True + +.. tab:: setup.py [#setup.py]_ + + .. code-block:: python + + setup( + # ... + include_package_data=True, + # ... + ) + +This tells setuptools to install any data files it finds in your packages. +The data files must be specified via the :ref:`MANIFEST.in ` +file or automatically added by a :ref:`Revision Control System plugin +`. +For more details, see :doc:`datafiles`. + + +Development mode +---------------- + +``setuptools`` allows you to install a package without copying any files +to your interpreter directory (e.g. the ``site-packages`` directory). +This allows you to modify your source code and have the changes take +effect without you having to rebuild and reinstall. +Here's how to do it:: + + pip install --editable . + +See :doc:`development_mode` for more information. + +.. tip:: + + Prior to :ref:`pip v21.1 `, a ``setup.py`` script was + required to be compatible with development mode. With late + versions of pip, projects without ``setup.py`` may be installed in this mode. + + If you have a version of ``pip`` older than v21.1 or is using a different + packaging-related tool that does not support :pep:`660`, you might need to keep a + ``setup.py`` file in your repository if you want to use editable + installs. + + A simple script will suffice, for example: + + .. code-block:: python + + from setuptools import setup + + setup() + + You can still keep all the configuration in + :doc:`pyproject.toml ` and/or + :doc:`setup.cfg ` + +.. note:: + + When building from source code (for example, by ``python -m build`` + or ``pip install -e .``) + some directories hosting build artefacts and cache files may be + created, such as ``build``, ``dist``, ``*.egg-info`` [#cache]_. + You can configure your version control system to ignore them + (see `GitHub's .gitignore template + `_ + for an example). + + +Uploading your package to PyPI +------------------------------ +After generating the distribution files, the next step would be to upload your +distribution so others can use it. This functionality is provided by +:pypi:`twine` and is documented in the :doc:`Python packaging tutorial +`. + + +Transitioning from ``setup.py`` to declarative config +----------------------------------------------------- +To avoid executing arbitrary scripts and boilerplate code, we are transitioning +from defining all your package information by running ``setup()`` to doing this +declaratively - by using ``pyproject.toml`` (or older ``setup.cfg``). + +To ease the challenges of transitioning, we provide a quick +:doc:`guide ` to understanding how ``pyproject.toml`` +is parsed by ``setuptools``. (Alternatively, here is the +:doc:`guide ` for ``setup.cfg``). + +.. note:: + + The approach ``setuptools`` would like to take is to eventually use a single + declarative format (``pyproject.toml``) instead of maintaining 2 + (``pyproject.toml`` / ``setup.cfg``). Yet, chances are, ``setup.cfg`` will + continue to be maintained for a long time. + +.. _packaging-resources: + +Resources on Python packaging +============================= +Packaging in Python can be hard and is constantly evolving. +`Python Packaging User Guide `_ has tutorials and +up-to-date references that can help you when it is time to distribute your work. + + + +---- + +.. rubric:: Notes + +.. [#setup.py] + New projects are advised to avoid ``setup.py`` configurations (beyond the minimal stub) + when custom scripting during the build is not necessary. + Examples are kept in this document to help people interested in maintaining or + contributing to existing packages that use ``setup.py``. + Note that you can still keep most of configuration declarative in + :doc:`setup.cfg ` or :doc:`pyproject.toml + ` and use ``setup.py`` only for the parts not + supported in those files (e.g. C extensions). + See :ref:`note `. + +.. [#cache] + If you feel that caching is causing problems to your build, specially after changes in the + configuration files, consider removing ``build``, ``dist``, ``*.egg-info`` before + rebuilding or installing your project. + +.. _PyPI: https://pypi.org diff --git a/easy_install.py b/easy_install.py deleted file mode 100755 index d87e984034..0000000000 --- a/easy_install.py +++ /dev/null @@ -1,5 +0,0 @@ -"""Run the EasyInstall command""" - -if __name__ == '__main__': - from setuptools.command.easy_install import main - main() diff --git a/exercises.py b/exercises.py new file mode 100644 index 0000000000..76176be557 --- /dev/null +++ b/exercises.py @@ -0,0 +1,6 @@ +def measure_startup_perf(): + # run by pytest_perf + import subprocess + import sys # end warmup + + subprocess.check_call([sys.executable, '-c', 'pass']) diff --git a/launcher.c b/launcher.c old mode 100755 new mode 100644 index c8022505f4..b87cb32ad6 --- a/launcher.c +++ b/launcher.c @@ -14,6 +14,14 @@ gcc -DGUI=0 -mno-cygwin -O -s -o setuptools/cli.exe launcher.c gcc -DGUI=1 -mwindows -mno-cygwin -O -s -o setuptools/gui.exe launcher.c + To build for Windows RT, install both Visual Studio Express for Windows 8 + and for Windows Desktop (both freeware), create "win32" application using + "Windows Desktop" version, create new "ARM" target via + "Configuration Manager" menu and modify ".vcxproj" file by adding + "true" tag + as child of "PropertyGroup" tags that has "Debug|ARM" and "Release|ARM" + properties. + It links to msvcrt.dll, but this shouldn't be a problem since it doesn't actually run Python in the same process. Note that using 'exec' instead of 'spawn' doesn't work, because on Windows this leads to the Python @@ -25,9 +33,13 @@ #include #include -#include +#include +#include +#include #include -#include "windows.h" +#include + +int child_pid=0; int fail(char *format, char *data) { /* Print error message to stderr and return 2 */ @@ -35,10 +47,6 @@ int fail(char *format, char *data) { return 2; } - - - - char *quoted(char *data) { int i, ln = strlen(data), nb; @@ -81,17 +89,18 @@ char *quoted(char *data) { char *loadable_exe(char *exename) { - HINSTANCE hPython; /* DLL handle for python executable */ + /* HINSTANCE hPython; DLL handle for python executable */ char *result; - hPython = LoadLibraryEx(exename, NULL, LOAD_WITH_ALTERED_SEARCH_PATH); - if (!hPython) return NULL; + /* hPython = LoadLibraryEx(exename, NULL, LOAD_WITH_ALTERED_SEARCH_PATH); + if (!hPython) return NULL; */ /* Return the absolute filename for spawnv */ result = calloc(MAX_PATH, sizeof(char)); - if (result) GetModuleFileName(hPython, result, MAX_PATH); + strncpy(result, exename, MAX_PATH); + /*if (result) GetModuleFileNameA(hPython, result, MAX_PATH); - FreeLibrary(hPython); + FreeLibrary(hPython); */ return result; } @@ -159,8 +168,82 @@ char **parse_argv(char *cmdline, int *argc) } while (1); } +void pass_control_to_child(DWORD control_type) { + /* + * distribute-issue207 + * passes the control event to child process (Python) + */ + if (!child_pid) { + return; + } + GenerateConsoleCtrlEvent(child_pid,0); +} +BOOL control_handler(DWORD control_type) { + /* + * distribute-issue207 + * control event handler callback function + */ + switch (control_type) { + case CTRL_C_EVENT: + pass_control_to_child(0); + break; + } + return TRUE; +} +int create_and_wait_for_subprocess(char* command) { + /* + * distribute-issue207 + * launches child process (Python) + */ + DWORD return_value = 0; + LPSTR commandline = command; + STARTUPINFOA s_info; + PROCESS_INFORMATION p_info; + ZeroMemory(&p_info, sizeof(p_info)); + ZeroMemory(&s_info, sizeof(s_info)); + s_info.cb = sizeof(STARTUPINFO); + // set-up control handler callback function + SetConsoleCtrlHandler((PHANDLER_ROUTINE) control_handler, TRUE); + if (!CreateProcessA(NULL, commandline, NULL, NULL, TRUE, 0, NULL, NULL, &s_info, &p_info)) { + fprintf(stderr, "failed to create process.\n"); + return 0; + } + child_pid = p_info.dwProcessId; + // wait for Python to exit + WaitForSingleObject(p_info.hProcess, INFINITE); + if (!GetExitCodeProcess(p_info.hProcess, &return_value)) { + fprintf(stderr, "failed to get exit code from process.\n"); + return 0; + } + return return_value; +} + +char* join_executable_and_args(char *executable, char **args, int argc) +{ + /* + * distribute-issue207 + * CreateProcess needs a long string of the executable and command-line arguments, + * so we need to convert it from the args that was built + */ + int len,counter; + char* cmdline; + + len=strlen(executable)+2; + for (counter=1; counterscript && *end != '.') *end-- = '\0'; @@ -235,12 +329,17 @@ int run(int argc, char **argv, int is_gui) { return fail("Could not exec %s", ptr); /* shouldn't get here! */ } - /* We *do* need to wait for a CLI to finish, so use spawn */ - return spawnv(P_WAIT, ptr, (const char * const *)(newargs)); + /* + * distribute-issue207: using CreateProcessA instead of spawnv + */ + cmdline = join_executable_and_args(ptr, newargs, parsedargc + argc); + return create_and_wait_for_subprocess(cmdline); } - int WINAPI WinMain(HINSTANCE hI, HINSTANCE hP, LPSTR lpCmd, int nShow) { return run(__argc, __argv, GUI); } +int main(int argc, char** argv) { + return run(argc, argv, GUI); +} diff --git a/launcher/CMakeLists.txt b/launcher/CMakeLists.txt new file mode 100644 index 0000000000..47cce582ac --- /dev/null +++ b/launcher/CMakeLists.txt @@ -0,0 +1,5 @@ +cmake_minimum_required (VERSION 3.17.0) +set (CMAKE_SYSTEM_VERSION 6.1 CACHE TYPE INTERNAL FORCE) +project (launcher C) +add_definitions(-DGUI=${GUI} -DWIN32_LEAN_AND_MEAN) +add_executable(launcher ../launcher.c) diff --git a/mypy.ini b/mypy.ini new file mode 100644 index 0000000000..c1d01a42c3 --- /dev/null +++ b/mypy.ini @@ -0,0 +1,76 @@ +[mypy] +## upstream + +# Is the project well-typed? +strict = False + +# Early opt-in even when strict = False +# warn_unused_ignores = True # Disabled until we have distutils stubs for Python 3.12+ +warn_redundant_casts = True +enable_error_code = ignore-without-code + +# Support namespace packages per https://github.com/python/mypy/issues/14057 +explicit_package_bases = True + +disable_error_code = + # Disable due to many false positives + overload-overlap, + +## local + +# CI should test for all versions, local development gets hints for oldest supported +# But our testing setup doesn't allow passing CLI arguments, so local devs have to set this manually. +# python_version = 3.9 + +exclude = (?x)( + # Avoid scanning Python files in generated folders + ^build/ + | ^.tox/ + | ^.eggs/ + | ^setuptools/config/_validate_pyproject/ + # These are vendored + | ^setuptools/_vendor/ + | ^setuptools/_distutils/ + # Duplicate module name + | ^pkg_resources/tests/data/my-test-package-source/setup.py$ + ) +[mypy-setuptools.*] +disable_error_code = + # DistributionMetadata.license_files and DistributionMetadata.license_file + # are dynamically patched in setuptools/_core_metadata.py + # and no DistributionMetadata subclass exists in setuptools + attr-defined, + # See issue described below about distutils across Python versions + has-type, + +# - pkg_resources tests create modules that won't exists statically before the test is run. +# Let's ignore all "import-not-found" since, if an import really wasn't found, then the test would fail. +[mypy-pkg_resources.tests.*] +disable_error_code = import-not-found + +# - distutils doesn't exist on Python 3.12, unfortunately, this means typing +# will be missing for subclasses of distutils on Python 3.12 until either: +# - support for `SETUPTOOLS_USE_DISTUTILS=stdlib` is dropped (#3625) +# for setuptools to import `_distutils` directly +# - or non-stdlib distutils typings are exposed +[mypy-distutils.*] +ignore_missing_imports = True + +# - wheel: does not intend on exposing a programmatic API https://github.com/pypa/wheel/pull/610#issuecomment-2081687671 +[mypy-wheel.*] +follow_untyped_imports = True +# - The following are not marked as py.typed: +# - jaraco: Since mypy 1.12, the root name of the untyped namespace package gets called-out too +# - jaraco.develop: https://github.com/jaraco/jaraco.develop/issues/22 +# - jaraco.envs: https://github.com/jaraco/jaraco.envs/issues/7 +# - jaraco.packaging: https://github.com/jaraco/jaraco.packaging/issues/20 +# - jaraco.path: https://github.com/jaraco/jaraco.path/issues/2 +# - jaraco.text: https://github.com/jaraco/jaraco.text/issues/17 +[mypy-jaraco,jaraco.develop.*,jaraco.envs,jaraco.packaging.*,jaraco.path,jaraco.text] +follow_untyped_imports = True + +# Even when excluding a module, import issues can show up due to following import +# https://github.com/python/mypy/issues/11936#issuecomment-1466764006 +[mypy-setuptools.config._validate_pyproject.*,setuptools._vendor.*,setuptools._distutils.*] +follow_imports = silent +# silent => ignore errors when following imports diff --git a/newsfragments/.gitignore b/newsfragments/.gitignore new file mode 100644 index 0000000000..e69de29bb2 diff --git a/newsfragments/README.rst b/newsfragments/README.rst new file mode 100644 index 0000000000..7356b35f46 --- /dev/null +++ b/newsfragments/README.rst @@ -0,0 +1,96 @@ +.. _Adding change notes with your PRs: + +Adding change notes with your PRs +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +It is very important to maintain a log for news of how +updating to the new version of the software will affect +end-users. This is why we enforce collection of the change +fragment files in pull requests as per `Towncrier philosophy`_. + +The idea is that when somebody makes a change, they must record +the bits that would affect end-users only including information +that would be useful to them. Then, when the maintainers publish +a new release, they'll automatically use these records to compose +a change log for the respective version. It is important to +understand that including unnecessary low-level implementation +related details generates noise that is not particularly useful +to the end-users most of the time. And so such details should be +recorded in the Git history rather than a changelog. + +Alright! So how to add a news fragment? +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +``setuptools`` uses :pypi:`towncrier` for changelog management. +To submit a change note about your PR, add a text file into the +``newsfragments/`` folder, manually or by running +``towncrier create``. + +It should contain an +explanation of what applying this PR will change in the way +end-users interact with the project. One sentence is usually +enough but feel free to add as many details as you feel necessary +for the users to understand what it means. + +**Use the past tense** for the text in your fragment because, +combined with others, it will be a part of the "news digest" +telling the readers **what changed** in a specific version of +the library *since the previous version*. You should also use +reStructuredText syntax for highlighting code (inline or block), +linking parts of the docs or external sites. +If you wish to sign your change, feel free to add ``-- by +:user:`github-username``` at the end (replace ``github-username`` +with your own!). + +Finally, name your file following the convention that Towncrier +understands: it should start with the number of an issue or a +PR followed by a dot, then add a patch type, like ``feature``, +``doc``, ``misc`` etc., and add ``.rst`` as a suffix. If you +need to add more than one fragment, you may add an optional +sequence number (delimited with another period) between the type +and the suffix. + +In general the name will follow ``..rst`` pattern, +where the categories are: + +- ``feature``: Any backwards compatible code change +- ``bugfix``: A fix for broken behavior of a previous change +- ``doc``: A change to the documentation +- ``removal``: Any backwards-compatibility breaking change +- ``misc``: Changes internal to the repo like CI, test and build changes + +A pull request may have more than one of these components, for example +a code change may introduce a new feature that deprecates an old +feature, in which case two fragments should be added. It is not +necessary to make a separate documentation fragment for documentation +changes accompanying the relevant code changes. + +Examples for adding changelog entries to your Pull Requests +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +File :file:`newsfragments/2395.doc.1.rst`: + +.. code-block:: rst + + Added a ``:user:`` role to Sphinx config -- by :user:`webknjaz` + +File :file:`newsfragments/1354.misc.rst`: + +.. code-block:: rst + + Added ``towncrier`` for changelog management -- by :user:`pganssle` + +File :file:`newsfragments/2355.feature.rst`: + +.. code-block:: rst + + When pip is imported as part of a build, leave :py:mod:`distutils` + patched -- by :user:`jaraco` + +.. tip:: + + See :file:`towncrier.toml` for all available categories + (``tool.towncrier.type``). + +.. _Towncrier philosophy: + https://towncrier.readthedocs.io/en/latest/#philosophy diff --git a/pkg_resources.py b/pkg_resources.py deleted file mode 100644 index c636903c96..0000000000 --- a/pkg_resources.py +++ /dev/null @@ -1,2583 +0,0 @@ -"""Package resource API --------------------- - -A resource is a logical file contained within a package, or a logical -subdirectory thereof. The package resource API expects resource names -to have their path parts separated with ``/``, *not* whatever the local -path separator is. Do not use os.path operations to manipulate resource -names being passed into the API. - -The package resource API is designed to work with normal filesystem packages, -.egg files, and unpacked .egg files. It can also work in a limited way with -.zip files and with custom PEP 302 loaders that support the ``get_data()`` -method. -""" - -import sys, os, zipimport, time, re, imp, new - -try: - frozenset -except NameError: - from sets import ImmutableSet as frozenset - -# capture these to bypass sandboxing -from os import utime, rename, unlink, mkdir -from os import open as os_open -from os.path import isdir, split - -# This marker is used to simplify the process that checks is the -# setuptools package was installed by the Setuptools project -# or by the Distribute project, in case Setuptools creates -# a distribution with the same version. -# -# The bootstrapping script for instance, will check if this -# attribute is present to decide wether to reinstall the package -_distribute = True - -def _bypass_ensure_directory(name, mode=0777): - # Sandbox-bypassing version of ensure_directory() - dirname, filename = split(name) - if dirname and filename and not isdir(dirname): - _bypass_ensure_directory(dirname) - mkdir(dirname, mode) - - - - - - - - -def get_supported_platform(): - """Return this platform's maximum compatible version. - - distutils.util.get_platform() normally reports the minimum version - of Mac OS X that would be required to *use* extensions produced by - distutils. But what we want when checking compatibility is to know the - version of Mac OS X that we are *running*. To allow usage of packages that - explicitly require a newer version of Mac OS X, we must also know the - current version of the OS. - - If this condition occurs for any other platform with a version in its - platform strings, this function should be extended accordingly. - """ - plat = get_build_platform(); m = macosVersionString.match(plat) - if m is not None and sys.platform == "darwin": - try: - plat = 'macosx-%s-%s' % ('.'.join(_macosx_vers()[:2]), m.group(3)) - except ValueError: - pass # not Mac OS X - return plat - - - - - - - - - - - - - - - - - - - - - -__all__ = [ - # Basic resource access and distribution/entry point discovery - 'require', 'run_script', 'get_provider', 'get_distribution', - 'load_entry_point', 'get_entry_map', 'get_entry_info', 'iter_entry_points', - 'resource_string', 'resource_stream', 'resource_filename', - 'resource_listdir', 'resource_exists', 'resource_isdir', - - # Environmental control - 'declare_namespace', 'working_set', 'add_activation_listener', - 'find_distributions', 'set_extraction_path', 'cleanup_resources', - 'get_default_cache', - - # Primary implementation classes - 'Environment', 'WorkingSet', 'ResourceManager', - 'Distribution', 'Requirement', 'EntryPoint', - - # Exceptions - 'ResolutionError','VersionConflict','DistributionNotFound','UnknownExtra', - 'ExtractionError', - - # Parsing functions and string utilities - 'parse_requirements', 'parse_version', 'safe_name', 'safe_version', - 'get_platform', 'compatible_platforms', 'yield_lines', 'split_sections', - 'safe_extra', 'to_filename', - - # filesystem utilities - 'ensure_directory', 'normalize_path', - - # Distribution "precedence" constants - 'EGG_DIST', 'BINARY_DIST', 'SOURCE_DIST', 'CHECKOUT_DIST', 'DEVELOP_DIST', - - # "Provider" interfaces, implementations, and registration/lookup APIs - 'IMetadataProvider', 'IResourceProvider', 'FileMetadata', - 'PathMetadata', 'EggMetadata', 'EmptyProvider', 'empty_provider', - 'NullProvider', 'EggProvider', 'DefaultProvider', 'ZipProvider', - 'register_finder', 'register_namespace_handler', 'register_loader_type', - 'fixup_namespace_packages', 'get_importer', - - # Deprecated/backward compatibility only - 'run_main', 'AvailableDistributions', -] -class ResolutionError(Exception): - """Abstract base for dependency resolution errors""" - def __repr__(self): - return self.__class__.__name__+repr(self.args) - -class VersionConflict(ResolutionError): - """An already-installed version conflicts with the requested version""" - -class DistributionNotFound(ResolutionError): - """A requested distribution was not found""" - -class UnknownExtra(ResolutionError): - """Distribution doesn't have an "extra feature" of the given name""" -_provider_factories = {} - -PY_MAJOR = sys.version[:3] -EGG_DIST = 3 -BINARY_DIST = 2 -SOURCE_DIST = 1 -CHECKOUT_DIST = 0 -DEVELOP_DIST = -1 - -def register_loader_type(loader_type, provider_factory): - """Register `provider_factory` to make providers for `loader_type` - - `loader_type` is the type or class of a PEP 302 ``module.__loader__``, - and `provider_factory` is a function that, passed a *module* object, - returns an ``IResourceProvider`` for that module. - """ - _provider_factories[loader_type] = provider_factory - -def get_provider(moduleOrReq): - """Return an IResourceProvider for the named module or requirement""" - if isinstance(moduleOrReq,Requirement): - return working_set.find(moduleOrReq) or require(str(moduleOrReq))[0] - try: - module = sys.modules[moduleOrReq] - except KeyError: - __import__(moduleOrReq) - module = sys.modules[moduleOrReq] - loader = getattr(module, '__loader__', None) - return _find_adapter(_provider_factories, loader)(module) - -def _macosx_vers(_cache=[]): - if not _cache: - import platform - version = platform.mac_ver()[0] - _cache.append(version.split('.')) - return _cache[0] - -def _macosx_arch(machine): - return {'PowerPC':'ppc', 'Power_Macintosh':'ppc'}.get(machine,machine) - -def get_build_platform(): - """Return this platform's string for platform-specific distributions - - XXX Currently this is the same as ``distutils.util.get_platform()``, but it - needs some hacks for Linux and Mac OS X. - """ - from distutils.util import get_platform - plat = get_platform() - if sys.platform == "darwin" and not plat.startswith('macosx-'): - try: - version = _macosx_vers() - machine = os.uname()[4].replace(" ", "_") - return "macosx-%d.%d-%s" % (int(version[0]), int(version[1]), - _macosx_arch(machine)) - except ValueError: - # if someone is running a non-Mac darwin system, this will fall - # through to the default implementation - pass - return plat - -macosVersionString = re.compile(r"macosx-(\d+)\.(\d+)-(.*)") -darwinVersionString = re.compile(r"darwin-(\d+)\.(\d+)\.(\d+)-(.*)") -get_platform = get_build_platform # XXX backward compat - -def compatible_platforms(provided,required): - """Can code for the `provided` platform run on the `required` platform? - - Returns true if either platform is ``None``, or the platforms are equal. - - XXX Needs compatibility checks for Linux and other unixy OSes. - """ - if provided is None or required is None or provided==required: - return True # easy case - - # Mac OS X special cases - reqMac = macosVersionString.match(required) - if reqMac: - provMac = macosVersionString.match(provided) - - # is this a Mac package? - if not provMac: - # this is backwards compatibility for packages built before - # setuptools 0.6. All packages built after this point will - # use the new macosx designation. - provDarwin = darwinVersionString.match(provided) - if provDarwin: - dversion = int(provDarwin.group(1)) - macosversion = "%s.%s" % (reqMac.group(1), reqMac.group(2)) - if dversion == 7 and macosversion >= "10.3" or \ - dversion == 8 and macosversion >= "10.4": - - #import warnings - #warnings.warn("Mac eggs should be rebuilt to " - # "use the macosx designation instead of darwin.", - # category=DeprecationWarning) - return True - return False # egg isn't macosx or legacy darwin - - # are they the same major version and machine type? - if provMac.group(1) != reqMac.group(1) or \ - provMac.group(3) != reqMac.group(3): - return False - - - - # is the required OS major update >= the provided one? - if int(provMac.group(2)) > int(reqMac.group(2)): - return False - - return True - - # XXX Linux and other platforms' special cases should go here - return False - - -def run_script(dist_spec, script_name): - """Locate distribution `dist_spec` and run its `script_name` script""" - ns = sys._getframe(1).f_globals - name = ns['__name__'] - ns.clear() - ns['__name__'] = name - require(dist_spec)[0].run_script(script_name, ns) - -run_main = run_script # backward compatibility - -def get_distribution(dist): - """Return a current distribution object for a Requirement or string""" - if isinstance(dist,basestring): dist = Requirement.parse(dist) - if isinstance(dist,Requirement): dist = get_provider(dist) - if not isinstance(dist,Distribution): - raise TypeError("Expected string, Requirement, or Distribution", dist) - return dist - -def load_entry_point(dist, group, name): - """Return `name` entry point of `group` for `dist` or raise ImportError""" - return get_distribution(dist).load_entry_point(group, name) - -def get_entry_map(dist, group=None): - """Return the entry point map for `group`, or the full entry map""" - return get_distribution(dist).get_entry_map(group) - -def get_entry_info(dist, group, name): - """Return the EntryPoint object for `group`+`name`, or ``None``""" - return get_distribution(dist).get_entry_info(group, name) - - -class IMetadataProvider: - - def has_metadata(name): - """Does the package's distribution contain the named metadata?""" - - def get_metadata(name): - """The named metadata resource as a string""" - - def get_metadata_lines(name): - """Yield named metadata resource as list of non-blank non-comment lines - - Leading and trailing whitespace is stripped from each line, and lines - with ``#`` as the first non-blank character are omitted.""" - - def metadata_isdir(name): - """Is the named metadata a directory? (like ``os.path.isdir()``)""" - - def metadata_listdir(name): - """List of metadata names in the directory (like ``os.listdir()``)""" - - def run_script(script_name, namespace): - """Execute the named script in the supplied namespace dictionary""" - - - - - - - - - - -class IResourceProvider(IMetadataProvider): - """An object that provides access to package resources""" - - def get_resource_filename(manager, resource_name): - """Return a true filesystem path for `resource_name` - - `manager` must be an ``IResourceManager``""" - - def get_resource_stream(manager, resource_name): - """Return a readable file-like object for `resource_name` - - `manager` must be an ``IResourceManager``""" - - def get_resource_string(manager, resource_name): - """Return a string containing the contents of `resource_name` - - `manager` must be an ``IResourceManager``""" - - def has_resource(resource_name): - """Does the package contain the named resource?""" - - def resource_isdir(resource_name): - """Is the named resource a directory? (like ``os.path.isdir()``)""" - - def resource_listdir(resource_name): - """List of resource names in the directory (like ``os.listdir()``)""" - - - - - - - - - - - - - - - -class WorkingSet(object): - """A collection of active distributions on sys.path (or a similar list)""" - - def __init__(self, entries=None): - """Create working set from list of path entries (default=sys.path)""" - self.entries = [] - self.entry_keys = {} - self.by_key = {} - self.callbacks = [] - - if entries is None: - entries = sys.path - - for entry in entries: - self.add_entry(entry) - - - def add_entry(self, entry): - """Add a path item to ``.entries``, finding any distributions on it - - ``find_distributions(entry,True)`` is used to find distributions - corresponding to the path entry, and they are added. `entry` is - always appended to ``.entries``, even if it is already present. - (This is because ``sys.path`` can contain the same value more than - once, and the ``.entries`` of the ``sys.path`` WorkingSet should always - equal ``sys.path``.) - """ - self.entry_keys.setdefault(entry, []) - self.entries.append(entry) - for dist in find_distributions(entry, True): - self.add(dist, entry, False) - - - def __contains__(self,dist): - """True if `dist` is the active distribution for its project""" - return self.by_key.get(dist.key) == dist - - - - - - def find(self, req): - """Find a distribution matching requirement `req` - - If there is an active distribution for the requested project, this - returns it as long as it meets the version requirement specified by - `req`. But, if there is an active distribution for the project and it - does *not* meet the `req` requirement, ``VersionConflict`` is raised. - If there is no active distribution for the requested project, ``None`` - is returned. - """ - dist = self.by_key.get(req.key) - if dist is not None and dist not in req: - raise VersionConflict(dist,req) # XXX add more info - else: - return dist - - def iter_entry_points(self, group, name=None): - """Yield entry point objects from `group` matching `name` - - If `name` is None, yields all entry points in `group` from all - distributions in the working set, otherwise only ones matching - both `group` and `name` are yielded (in distribution order). - """ - for dist in self: - entries = dist.get_entry_map(group) - if name is None: - for ep in entries.values(): - yield ep - elif name in entries: - yield entries[name] - - def run_script(self, requires, script_name): - """Locate distribution for `requires` and run `script_name` script""" - ns = sys._getframe(1).f_globals - name = ns['__name__'] - ns.clear() - ns['__name__'] = name - self.require(requires)[0].run_script(script_name, ns) - - - - def __iter__(self): - """Yield distributions for non-duplicate projects in the working set - - The yield order is the order in which the items' path entries were - added to the working set. - """ - seen = {} - for item in self.entries: - for key in self.entry_keys[item]: - if key not in seen: - seen[key]=1 - yield self.by_key[key] - - def add(self, dist, entry=None, insert=True): - """Add `dist` to working set, associated with `entry` - - If `entry` is unspecified, it defaults to the ``.location`` of `dist`. - On exit from this routine, `entry` is added to the end of the working - set's ``.entries`` (if it wasn't already present). - - `dist` is only added to the working set if it's for a project that - doesn't already have a distribution in the set. If it's added, any - callbacks registered with the ``subscribe()`` method will be called. - """ - if insert: - dist.insert_on(self.entries, entry) - - if entry is None: - entry = dist.location - keys = self.entry_keys.setdefault(entry,[]) - keys2 = self.entry_keys.setdefault(dist.location,[]) - if dist.key in self.by_key: - return # ignore hidden distros - - self.by_key[dist.key] = dist - if dist.key not in keys: - keys.append(dist.key) - if dist.key not in keys2: - keys2.append(dist.key) - self._added_new(dist) - - def resolve(self, requirements, env=None, installer=None): - """List all distributions needed to (recursively) meet `requirements` - - `requirements` must be a sequence of ``Requirement`` objects. `env`, - if supplied, should be an ``Environment`` instance. If - not supplied, it defaults to all distributions available within any - entry or distribution in the working set. `installer`, if supplied, - will be invoked with each requirement that cannot be met by an - already-installed distribution; it should return a ``Distribution`` or - ``None``. - """ - - requirements = list(requirements)[::-1] # set up the stack - processed = {} # set of processed requirements - best = {} # key -> dist - to_activate = [] - - while requirements: - req = requirements.pop(0) # process dependencies breadth-first - if req in processed: - # Ignore cyclic or redundant dependencies - continue - dist = best.get(req.key) - if dist is None: - # Find the best distribution and add it to the map - dist = self.by_key.get(req.key) - if dist is None: - if env is None: - env = Environment(self.entries) - dist = best[req.key] = env.best_match(req, self, installer) - if dist is None: - raise DistributionNotFound(req) # XXX put more info here - to_activate.append(dist) - if dist not in req: - # Oops, the "best" so far conflicts with a dependency - raise VersionConflict(dist,req) # XXX put more info here - requirements.extend(dist.requires(req.extras)[::-1]) - processed[req] = True - - return to_activate # return list of distros to activate - - def find_plugins(self, - plugin_env, full_env=None, installer=None, fallback=True - ): - """Find all activatable distributions in `plugin_env` - - Example usage:: - - distributions, errors = working_set.find_plugins( - Environment(plugin_dirlist) - ) - map(working_set.add, distributions) # add plugins+libs to sys.path - print "Couldn't load", errors # display errors - - The `plugin_env` should be an ``Environment`` instance that contains - only distributions that are in the project's "plugin directory" or - directories. The `full_env`, if supplied, should be an ``Environment`` - contains all currently-available distributions. If `full_env` is not - supplied, one is created automatically from the ``WorkingSet`` this - method is called on, which will typically mean that every directory on - ``sys.path`` will be scanned for distributions. - - `installer` is a standard installer callback as used by the - ``resolve()`` method. The `fallback` flag indicates whether we should - attempt to resolve older versions of a plugin if the newest version - cannot be resolved. - - This method returns a 2-tuple: (`distributions`, `error_info`), where - `distributions` is a list of the distributions found in `plugin_env` - that were loadable, along with any other distributions that are needed - to resolve their dependencies. `error_info` is a dictionary mapping - unloadable plugin distributions to an exception instance describing the - error that occurred. Usually this will be a ``DistributionNotFound`` or - ``VersionConflict`` instance. - """ - - plugin_projects = list(plugin_env) - plugin_projects.sort() # scan project names in alphabetic order - - error_info = {} - distributions = {} - - if full_env is None: - env = Environment(self.entries) - env += plugin_env - else: - env = full_env + plugin_env - - shadow_set = self.__class__([]) - map(shadow_set.add, self) # put all our entries in shadow_set - - for project_name in plugin_projects: - - for dist in plugin_env[project_name]: - - req = [dist.as_requirement()] - - try: - resolvees = shadow_set.resolve(req, env, installer) - - except ResolutionError,v: - error_info[dist] = v # save error info - if fallback: - continue # try the next older version of project - else: - break # give up on this project, keep going - - else: - map(shadow_set.add, resolvees) - distributions.update(dict.fromkeys(resolvees)) - - # success, no need to try any more versions of this project - break - - distributions = list(distributions) - distributions.sort() - - return distributions, error_info - - - - - - def require(self, *requirements): - """Ensure that distributions matching `requirements` are activated - - `requirements` must be a string or a (possibly-nested) sequence - thereof, specifying the distributions and versions required. The - return value is a sequence of the distributions that needed to be - activated to fulfill the requirements; all relevant distributions are - included, even if they were already activated in this working set. - """ - - needed = self.resolve(parse_requirements(requirements)) - - for dist in needed: - self.add(dist) - - return needed - - - def subscribe(self, callback): - """Invoke `callback` for all distributions (including existing ones)""" - if callback in self.callbacks: - return - self.callbacks.append(callback) - for dist in self: - callback(dist) - - - def _added_new(self, dist): - for callback in self.callbacks: - callback(dist) - - - - - - - - - - - -class Environment(object): - """Searchable snapshot of distributions on a search path""" - - def __init__(self, search_path=None, platform=get_supported_platform(), python=PY_MAJOR): - """Snapshot distributions available on a search path - - Any distributions found on `search_path` are added to the environment. - `search_path` should be a sequence of ``sys.path`` items. If not - supplied, ``sys.path`` is used. - - `platform` is an optional string specifying the name of the platform - that platform-specific distributions must be compatible with. If - unspecified, it defaults to the current platform. `python` is an - optional string naming the desired version of Python (e.g. ``'2.4'``); - it defaults to the current version. - - You may explicitly set `platform` (and/or `python`) to ``None`` if you - wish to map *all* distributions, not just those compatible with the - running platform or Python version. - """ - self._distmap = {} - self._cache = {} - self.platform = platform - self.python = python - self.scan(search_path) - - def can_add(self, dist): - """Is distribution `dist` acceptable for this environment? - - The distribution must match the platform and python version - requirements specified when this environment was created, or False - is returned. - """ - return (self.python is None or dist.py_version is None - or dist.py_version==self.python) \ - and compatible_platforms(dist.platform,self.platform) - - def remove(self, dist): - """Remove `dist` from the environment""" - self._distmap[dist.key].remove(dist) - - def scan(self, search_path=None): - """Scan `search_path` for distributions usable in this environment - - Any distributions found are added to the environment. - `search_path` should be a sequence of ``sys.path`` items. If not - supplied, ``sys.path`` is used. Only distributions conforming to - the platform/python version defined at initialization are added. - """ - if search_path is None: - search_path = sys.path - - for item in search_path: - for dist in find_distributions(item): - self.add(dist) - - def __getitem__(self,project_name): - """Return a newest-to-oldest list of distributions for `project_name` - """ - try: - return self._cache[project_name] - except KeyError: - project_name = project_name.lower() - if project_name not in self._distmap: - return [] - - if project_name not in self._cache: - dists = self._cache[project_name] = self._distmap[project_name] - _sort_dists(dists) - - return self._cache[project_name] - - def add(self,dist): - """Add `dist` if we ``can_add()`` it and it isn't already added""" - if self.can_add(dist) and dist.has_version(): - dists = self._distmap.setdefault(dist.key,[]) - if dist not in dists: - dists.append(dist) - if dist.key in self._cache: - _sort_dists(self._cache[dist.key]) - - - def best_match(self, req, working_set, installer=None): - """Find distribution best matching `req` and usable on `working_set` - - This calls the ``find(req)`` method of the `working_set` to see if a - suitable distribution is already active. (This may raise - ``VersionConflict`` if an unsuitable version of the project is already - active in the specified `working_set`.) If a suitable distribution - isn't active, this method returns the newest distribution in the - environment that meets the ``Requirement`` in `req`. If no suitable - distribution is found, and `installer` is supplied, then the result of - calling the environment's ``obtain(req, installer)`` method will be - returned. - """ - dist = working_set.find(req) - if dist is not None: - return dist - for dist in self[req.key]: - if dist in req: - return dist - return self.obtain(req, installer) # try and download/install - - def obtain(self, requirement, installer=None): - """Obtain a distribution matching `requirement` (e.g. via download) - - Obtain a distro that matches requirement (e.g. via download). In the - base ``Environment`` class, this routine just returns - ``installer(requirement)``, unless `installer` is None, in which case - None is returned instead. This method is a hook that allows subclasses - to attempt other ways of obtaining a distribution before falling back - to the `installer` argument.""" - if installer is not None: - return installer(requirement) - - def __iter__(self): - """Yield the unique project names of the available distributions""" - for key in self._distmap.keys(): - if self[key]: yield key - - - - - def __iadd__(self, other): - """In-place addition of a distribution or environment""" - if isinstance(other,Distribution): - self.add(other) - elif isinstance(other,Environment): - for project in other: - for dist in other[project]: - self.add(dist) - else: - raise TypeError("Can't add %r to environment" % (other,)) - return self - - def __add__(self, other): - """Add an environment or distribution to an environment""" - new = self.__class__([], platform=None, python=None) - for env in self, other: - new += env - return new - - -AvailableDistributions = Environment # XXX backward compatibility - - -class ExtractionError(RuntimeError): - """An error occurred extracting a resource - - The following attributes are available from instances of this exception: - - manager - The resource manager that raised this exception - - cache_path - The base directory for resource extraction - - original_error - The exception instance that caused extraction to fail - """ - - - - -class ResourceManager: - """Manage resource extraction and packages""" - extraction_path = None - - def __init__(self): - self.cached_files = {} - - def resource_exists(self, package_or_requirement, resource_name): - """Does the named resource exist?""" - return get_provider(package_or_requirement).has_resource(resource_name) - - def resource_isdir(self, package_or_requirement, resource_name): - """Is the named resource an existing directory?""" - return get_provider(package_or_requirement).resource_isdir( - resource_name - ) - - def resource_filename(self, package_or_requirement, resource_name): - """Return a true filesystem path for specified resource""" - return get_provider(package_or_requirement).get_resource_filename( - self, resource_name - ) - - def resource_stream(self, package_or_requirement, resource_name): - """Return a readable file-like object for specified resource""" - return get_provider(package_or_requirement).get_resource_stream( - self, resource_name - ) - - def resource_string(self, package_or_requirement, resource_name): - """Return specified resource as a string""" - return get_provider(package_or_requirement).get_resource_string( - self, resource_name - ) - - def resource_listdir(self, package_or_requirement, resource_name): - """List the contents of the named resource directory""" - return get_provider(package_or_requirement).resource_listdir( - resource_name - ) - - def extraction_error(self): - """Give an error message for problems extracting file(s)""" - - old_exc = sys.exc_info()[1] - cache_path = self.extraction_path or get_default_cache() - - err = ExtractionError("""Can't extract file(s) to egg cache - -The following error occurred while trying to extract file(s) to the Python egg -cache: - - %s - -The Python egg cache directory is currently set to: - - %s - -Perhaps your account does not have write access to this directory? You can -change the cache directory by setting the PYTHON_EGG_CACHE environment -variable to point to an accessible directory. -""" % (old_exc, cache_path) - ) - err.manager = self - err.cache_path = cache_path - err.original_error = old_exc - raise err - - - - - - - - - - - - - - - - def get_cache_path(self, archive_name, names=()): - """Return absolute location in cache for `archive_name` and `names` - - The parent directory of the resulting path will be created if it does - not already exist. `archive_name` should be the base filename of the - enclosing egg (which may not be the name of the enclosing zipfile!), - including its ".egg" extension. `names`, if provided, should be a - sequence of path name parts "under" the egg's extraction location. - - This method should only be called by resource providers that need to - obtain an extraction location, and only for names they intend to - extract, as it tracks the generated names for possible cleanup later. - """ - extract_path = self.extraction_path or get_default_cache() - target_path = os.path.join(extract_path, archive_name+'-tmp', *names) - try: - _bypass_ensure_directory(target_path) - except: - self.extraction_error() - - self.cached_files[target_path] = 1 - return target_path - - - - - - - - - - - - - - - - - - - - def postprocess(self, tempname, filename): - """Perform any platform-specific postprocessing of `tempname` - - This is where Mac header rewrites should be done; other platforms don't - have anything special they should do. - - Resource providers should call this method ONLY after successfully - extracting a compressed resource. They must NOT call it on resources - that are already in the filesystem. - - `tempname` is the current (temporary) name of the file, and `filename` - is the name it will be renamed to by the caller after this routine - returns. - """ - - if os.name == 'posix': - # Make the resource executable - mode = ((os.stat(tempname).st_mode) | 0555) & 07777 - os.chmod(tempname, mode) - - - - - - - - - - - - - - - - - - - - - - - def set_extraction_path(self, path): - """Set the base path where resources will be extracted to, if needed. - - If you do not call this routine before any extractions take place, the - path defaults to the return value of ``get_default_cache()``. (Which - is based on the ``PYTHON_EGG_CACHE`` environment variable, with various - platform-specific fallbacks. See that routine's documentation for more - details.) - - Resources are extracted to subdirectories of this path based upon - information given by the ``IResourceProvider``. You may set this to a - temporary directory, but then you must call ``cleanup_resources()`` to - delete the extracted files when done. There is no guarantee that - ``cleanup_resources()`` will be able to remove all extracted files. - - (Note: you may not change the extraction path for a given resource - manager once resources have been extracted, unless you first call - ``cleanup_resources()``.) - """ - if self.cached_files: - raise ValueError( - "Can't change extraction path, files already extracted" - ) - - self.extraction_path = path - - def cleanup_resources(self, force=False): - """ - Delete all extracted resource files and directories, returning a list - of the file and directory names that could not be successfully removed. - This function does not have any concurrency protection, so it should - generally only be called when the extraction path is a temporary - directory exclusive to a single process. This method is not - automatically called; you must call it explicitly or register it as an - ``atexit`` function if you wish to ensure cleanup of a temporary - directory used for extractions. - """ - # XXX - - - -def get_default_cache(): - """Determine the default cache location - - This returns the ``PYTHON_EGG_CACHE`` environment variable, if set. - Otherwise, on Windows, it returns a "Python-Eggs" subdirectory of the - "Application Data" directory. On all other systems, it's "~/.python-eggs". - """ - try: - return os.environ['PYTHON_EGG_CACHE'] - except KeyError: - pass - - if os.name!='nt': - return os.path.expanduser('~/.python-eggs') - - app_data = 'Application Data' # XXX this may be locale-specific! - app_homes = [ - (('APPDATA',), None), # best option, should be locale-safe - (('USERPROFILE',), app_data), - (('HOMEDRIVE','HOMEPATH'), app_data), - (('HOMEPATH',), app_data), - (('HOME',), None), - (('WINDIR',), app_data), # 95/98/ME - ] - - for keys, subdir in app_homes: - dirname = '' - for key in keys: - if key in os.environ: - dirname = os.path.join(dirname, os.environ[key]) - else: - break - else: - if subdir: - dirname = os.path.join(dirname,subdir) - return os.path.join(dirname, 'Python-Eggs') - else: - raise RuntimeError( - "Please set the PYTHON_EGG_CACHE enviroment variable" - ) - -def safe_name(name): - """Convert an arbitrary string to a standard distribution name - - Any runs of non-alphanumeric/. characters are replaced with a single '-'. - """ - return re.sub('[^A-Za-z0-9.]+', '-', name) - - -def safe_version(version): - """Convert an arbitrary string to a standard version string - - Spaces become dots, and all other non-alphanumeric characters become - dashes, with runs of multiple dashes condensed to a single dash. - """ - version = version.replace(' ','.') - return re.sub('[^A-Za-z0-9.]+', '-', version) - - -def safe_extra(extra): - """Convert an arbitrary string to a standard 'extra' name - - Any runs of non-alphanumeric characters are replaced with a single '_', - and the result is always lowercased. - """ - return re.sub('[^A-Za-z0-9.]+', '_', extra).lower() - - -def to_filename(name): - """Convert a project or version name to its filename-escaped form - - Any '-' characters are currently replaced with '_'. - """ - return name.replace('-','_') - - - - - - - - -class NullProvider: - """Try to implement resources and metadata for arbitrary PEP 302 loaders""" - - egg_name = None - egg_info = None - loader = None - - def __init__(self, module): - self.loader = getattr(module, '__loader__', None) - self.module_path = os.path.dirname(getattr(module, '__file__', '')) - - def get_resource_filename(self, manager, resource_name): - return self._fn(self.module_path, resource_name) - - def get_resource_stream(self, manager, resource_name): - return StringIO(self.get_resource_string(manager, resource_name)) - - def get_resource_string(self, manager, resource_name): - return self._get(self._fn(self.module_path, resource_name)) - - def has_resource(self, resource_name): - return self._has(self._fn(self.module_path, resource_name)) - - def has_metadata(self, name): - return self.egg_info and self._has(self._fn(self.egg_info,name)) - - def get_metadata(self, name): - if not self.egg_info: - return "" - return self._get(self._fn(self.egg_info,name)) - - def get_metadata_lines(self, name): - return yield_lines(self.get_metadata(name)) - - def resource_isdir(self,resource_name): - return self._isdir(self._fn(self.module_path, resource_name)) - - def metadata_isdir(self,name): - return self.egg_info and self._isdir(self._fn(self.egg_info,name)) - - - def resource_listdir(self,resource_name): - return self._listdir(self._fn(self.module_path,resource_name)) - - def metadata_listdir(self,name): - if self.egg_info: - return self._listdir(self._fn(self.egg_info,name)) - return [] - - def run_script(self,script_name,namespace): - script = 'scripts/'+script_name - if not self.has_metadata(script): - raise ResolutionError("No script named %r" % script_name) - script_text = self.get_metadata(script).replace('\r\n','\n') - script_text = script_text.replace('\r','\n') - script_filename = self._fn(self.egg_info,script) - namespace['__file__'] = script_filename - if os.path.exists(script_filename): - execfile(script_filename, namespace, namespace) - else: - from linecache import cache - cache[script_filename] = ( - len(script_text), 0, script_text.split('\n'), script_filename - ) - script_code = compile(script_text,script_filename,'exec') - exec script_code in namespace, namespace - - def _has(self, path): - raise NotImplementedError( - "Can't perform this operation for unregistered loader type" - ) - - def _isdir(self, path): - raise NotImplementedError( - "Can't perform this operation for unregistered loader type" - ) - - def _listdir(self, path): - raise NotImplementedError( - "Can't perform this operation for unregistered loader type" - ) - - def _fn(self, base, resource_name): - if resource_name: - return os.path.join(base, *resource_name.split('/')) - return base - - def _get(self, path): - if hasattr(self.loader, 'get_data'): - return self.loader.get_data(path) - raise NotImplementedError( - "Can't perform this operation for loaders without 'get_data()'" - ) - -register_loader_type(object, NullProvider) - - -class EggProvider(NullProvider): - """Provider based on a virtual filesystem""" - - def __init__(self,module): - NullProvider.__init__(self,module) - self._setup_prefix() - - def _setup_prefix(self): - # we assume here that our metadata may be nested inside a "basket" - # of multiple eggs; that's why we use module_path instead of .archive - path = self.module_path - old = None - while path!=old: - if path.lower().endswith('.egg'): - self.egg_name = os.path.basename(path) - self.egg_info = os.path.join(path, 'EGG-INFO') - self.egg_root = path - break - old = path - path, base = os.path.split(path) - - - - - - -class DefaultProvider(EggProvider): - """Provides access to package resources in the filesystem""" - - def _has(self, path): - return os.path.exists(path) - - def _isdir(self,path): - return os.path.isdir(path) - - def _listdir(self,path): - return os.listdir(path) - - def get_resource_stream(self, manager, resource_name): - return open(self._fn(self.module_path, resource_name), 'rb') - - def _get(self, path): - stream = open(path, 'rb') - try: - return stream.read() - finally: - stream.close() - -register_loader_type(type(None), DefaultProvider) - - -class EmptyProvider(NullProvider): - """Provider that returns nothing for all requests""" - - _isdir = _has = lambda self,path: False - _get = lambda self,path: '' - _listdir = lambda self,path: [] - module_path = None - - def __init__(self): - pass - -empty_provider = EmptyProvider() - - - - -class ZipProvider(EggProvider): - """Resource support for zips and eggs""" - - eagers = None - - def __init__(self, module): - EggProvider.__init__(self,module) - self.zipinfo = zipimport._zip_directory_cache[self.loader.archive] - self.zip_pre = self.loader.archive+os.sep - - def _zipinfo_name(self, fspath): - # Convert a virtual filename (full path to file) into a zipfile subpath - # usable with the zipimport directory cache for our target archive - if fspath.startswith(self.zip_pre): - return fspath[len(self.zip_pre):] - raise AssertionError( - "%s is not a subpath of %s" % (fspath,self.zip_pre) - ) - - def _parts(self,zip_path): - # Convert a zipfile subpath into an egg-relative path part list - fspath = self.zip_pre+zip_path # pseudo-fs path - if fspath.startswith(self.egg_root+os.sep): - return fspath[len(self.egg_root)+1:].split(os.sep) - raise AssertionError( - "%s is not a subpath of %s" % (fspath,self.egg_root) - ) - - def get_resource_filename(self, manager, resource_name): - if not self.egg_name: - raise NotImplementedError( - "resource_filename() only supported for .egg, not .zip" - ) - # no need to lock for extraction, since we use temp names - zip_path = self._resource_to_zip(resource_name) - eagers = self._get_eager_resources() - if '/'.join(self._parts(zip_path)) in eagers: - for name in eagers: - self._extract_resource(manager, self._eager_to_zip(name)) - return self._extract_resource(manager, zip_path) - - def _extract_resource(self, manager, zip_path): - - if zip_path in self._index(): - for name in self._index()[zip_path]: - last = self._extract_resource( - manager, os.path.join(zip_path, name) - ) - return os.path.dirname(last) # return the extracted directory name - - zip_stat = self.zipinfo[zip_path] - t,d,size = zip_stat[5], zip_stat[6], zip_stat[3] - date_time = ( - (d>>9)+1980, (d>>5)&0xF, d&0x1F, # ymd - (t&0xFFFF)>>11, (t>>5)&0x3F, (t&0x1F) * 2, 0, 0, -1 # hms, etc. - ) - timestamp = time.mktime(date_time) - - try: - real_path = manager.get_cache_path( - self.egg_name, self._parts(zip_path) - ) - - if os.path.isfile(real_path): - stat = os.stat(real_path) - if stat.st_size==size and stat.st_mtime==timestamp: - # size and stamp match, don't bother extracting - return real_path - - outf, tmpnam = _mkstemp(".$extract", dir=os.path.dirname(real_path)) - os.write(outf, self.loader.get_data(zip_path)) - os.close(outf) - utime(tmpnam, (timestamp,timestamp)) - manager.postprocess(tmpnam, real_path) - - try: - rename(tmpnam, real_path) - - except os.error: - if os.path.isfile(real_path): - stat = os.stat(real_path) - - if stat.st_size==size and stat.st_mtime==timestamp: - # size and stamp match, somebody did it just ahead of - # us, so we're done - return real_path - elif os.name=='nt': # Windows, del old file and retry - unlink(real_path) - rename(tmpnam, real_path) - return real_path - raise - - except os.error: - manager.extraction_error() # report a user-friendly error - - return real_path - - def _get_eager_resources(self): - if self.eagers is None: - eagers = [] - for name in ('native_libs.txt', 'eager_resources.txt'): - if self.has_metadata(name): - eagers.extend(self.get_metadata_lines(name)) - self.eagers = eagers - return self.eagers - - def _index(self): - try: - return self._dirindex - except AttributeError: - ind = {} - for path in self.zipinfo: - parts = path.split(os.sep) - while parts: - parent = os.sep.join(parts[:-1]) - if parent in ind: - ind[parent].append(parts[-1]) - break - else: - ind[parent] = [parts.pop()] - self._dirindex = ind - return ind - - def _has(self, fspath): - zip_path = self._zipinfo_name(fspath) - return zip_path in self.zipinfo or zip_path in self._index() - - def _isdir(self,fspath): - return self._zipinfo_name(fspath) in self._index() - - def _listdir(self,fspath): - return list(self._index().get(self._zipinfo_name(fspath), ())) - - def _eager_to_zip(self,resource_name): - return self._zipinfo_name(self._fn(self.egg_root,resource_name)) - - def _resource_to_zip(self,resource_name): - return self._zipinfo_name(self._fn(self.module_path,resource_name)) - -register_loader_type(zipimport.zipimporter, ZipProvider) - - - - - - - - - - - - - - - - - - - - - - - - -class FileMetadata(EmptyProvider): - """Metadata handler for standalone PKG-INFO files - - Usage:: - - metadata = FileMetadata("/path/to/PKG-INFO") - - This provider rejects all data and metadata requests except for PKG-INFO, - which is treated as existing, and will be the contents of the file at - the provided location. - """ - - def __init__(self,path): - self.path = path - - def has_metadata(self,name): - return name=='PKG-INFO' - - def get_metadata(self,name): - if name=='PKG-INFO': - f = open(self.path,'rU') - metadata = f.read() - f.close() - return metadata - raise KeyError("No metadata except PKG-INFO is available") - - def get_metadata_lines(self,name): - return yield_lines(self.get_metadata(name)) - - - - - - - - - - - - - - - - -class PathMetadata(DefaultProvider): - """Metadata provider for egg directories - - Usage:: - - # Development eggs: - - egg_info = "/path/to/PackageName.egg-info" - base_dir = os.path.dirname(egg_info) - metadata = PathMetadata(base_dir, egg_info) - dist_name = os.path.splitext(os.path.basename(egg_info))[0] - dist = Distribution(basedir,project_name=dist_name,metadata=metadata) - - # Unpacked egg directories: - - egg_path = "/path/to/PackageName-ver-pyver-etc.egg" - metadata = PathMetadata(egg_path, os.path.join(egg_path,'EGG-INFO')) - dist = Distribution.from_filename(egg_path, metadata=metadata) - """ - - def __init__(self, path, egg_info): - self.module_path = path - self.egg_info = egg_info - - -class EggMetadata(ZipProvider): - """Metadata provider for .egg files""" - - def __init__(self, importer): - """Create a metadata provider from a zipimporter""" - - self.zipinfo = zipimport._zip_directory_cache[importer.archive] - self.zip_pre = importer.archive+os.sep - self.loader = importer - if importer.prefix: - self.module_path = os.path.join(importer.archive, importer.prefix) - else: - self.module_path = importer.archive - self._setup_prefix() - - -class ImpWrapper: - """PEP 302 Importer that wraps Python's "normal" import algorithm""" - - def __init__(self, path=None): - self.path = path - - def find_module(self, fullname, path=None): - subname = fullname.split(".")[-1] - if subname != fullname and self.path is None: - return None - if self.path is None: - path = None - else: - path = [self.path] - try: - file, filename, etc = imp.find_module(subname, path) - except ImportError: - return None - return ImpLoader(file, filename, etc) - - -class ImpLoader: - """PEP 302 Loader that wraps Python's "normal" import algorithm""" - - def __init__(self, file, filename, etc): - self.file = file - self.filename = filename - self.etc = etc - - def load_module(self, fullname): - try: - mod = imp.load_module(fullname, self.file, self.filename, self.etc) - finally: - if self.file: self.file.close() - # Note: we don't set __loader__ because we want the module to look - # normal; i.e. this is just a wrapper for standard import machinery - return mod - - - - -def get_importer(path_item): - """Retrieve a PEP 302 "importer" for the given path item - - If there is no importer, this returns a wrapper around the builtin import - machinery. The returned importer is only cached if it was created by a - path hook. - """ - try: - importer = sys.path_importer_cache[path_item] - except KeyError: - for hook in sys.path_hooks: - try: - importer = hook(path_item) - except ImportError: - pass - else: - break - else: - importer = None - - sys.path_importer_cache.setdefault(path_item,importer) - if importer is None: - try: - importer = ImpWrapper(path_item) - except ImportError: - pass - return importer - -try: - from pkgutil import get_importer, ImpImporter -except ImportError: - pass # Python 2.3 or 2.4, use our own implementation -else: - ImpWrapper = ImpImporter # Python 2.5, use pkgutil's implementation - del ImpLoader, ImpImporter - - - - - - -_distribution_finders = {} - -def register_finder(importer_type, distribution_finder): - """Register `distribution_finder` to find distributions in sys.path items - - `importer_type` is the type or class of a PEP 302 "Importer" (sys.path item - handler), and `distribution_finder` is a callable that, passed a path - item and the importer instance, yields ``Distribution`` instances found on - that path item. See ``pkg_resources.find_on_path`` for an example.""" - _distribution_finders[importer_type] = distribution_finder - - -def find_distributions(path_item, only=False): - """Yield distributions accessible via `path_item`""" - importer = get_importer(path_item) - finder = _find_adapter(_distribution_finders, importer) - return finder(importer, path_item, only) - -def find_in_zip(importer, path_item, only=False): - metadata = EggMetadata(importer) - if metadata.has_metadata('PKG-INFO'): - yield Distribution.from_filename(path_item, metadata=metadata) - if only: - return # don't yield nested distros - for subitem in metadata.resource_listdir('/'): - if subitem.endswith('.egg'): - subpath = os.path.join(path_item, subitem) - for dist in find_in_zip(zipimport.zipimporter(subpath), subpath): - yield dist - -register_finder(zipimport.zipimporter, find_in_zip) - -def StringIO(*args, **kw): - """Thunk to load the real StringIO on demand""" - global StringIO - try: - from cStringIO import StringIO - except ImportError: - from StringIO import StringIO - return StringIO(*args,**kw) - -def find_nothing(importer, path_item, only=False): - return () -register_finder(object,find_nothing) - -def find_on_path(importer, path_item, only=False): - """Yield distributions accessible on a sys.path directory""" - path_item = _normalize_cached(path_item) - - if os.path.isdir(path_item) and os.access(path_item, os.R_OK): - if path_item.lower().endswith('.egg'): - # unpacked egg - yield Distribution.from_filename( - path_item, metadata=PathMetadata( - path_item, os.path.join(path_item,'EGG-INFO') - ) - ) - else: - # scan for .egg and .egg-info in directory - for entry in os.listdir(path_item): - lower = entry.lower() - if lower.endswith('.egg-info'): - fullpath = os.path.join(path_item, entry) - if os.path.isdir(fullpath): - # egg-info directory, allow getting metadata - metadata = PathMetadata(path_item, fullpath) - else: - metadata = FileMetadata(fullpath) - yield Distribution.from_location( - path_item,entry,metadata,precedence=DEVELOP_DIST - ) - elif not only and lower.endswith('.egg'): - for dist in find_distributions(os.path.join(path_item, entry)): - yield dist - elif not only and lower.endswith('.egg-link'): - for line in file(os.path.join(path_item, entry)): - if not line.strip(): continue - for item in find_distributions(os.path.join(path_item,line.rstrip())): - yield item - break -register_finder(ImpWrapper,find_on_path) - -_namespace_handlers = {} -_namespace_packages = {} - -def register_namespace_handler(importer_type, namespace_handler): - """Register `namespace_handler` to declare namespace packages - - `importer_type` is the type or class of a PEP 302 "Importer" (sys.path item - handler), and `namespace_handler` is a callable like this:: - - def namespace_handler(importer,path_entry,moduleName,module): - # return a path_entry to use for child packages - - Namespace handlers are only called if the importer object has already - agreed that it can handle the relevant path item, and they should only - return a subpath if the module __path__ does not already contain an - equivalent subpath. For an example namespace handler, see - ``pkg_resources.file_ns_handler``. - """ - _namespace_handlers[importer_type] = namespace_handler - -def _handle_ns(packageName, path_item): - """Ensure that named package includes a subpath of path_item (if needed)""" - importer = get_importer(path_item) - if importer is None: - return None - loader = importer.find_module(packageName) - if loader is None: - return None - module = sys.modules.get(packageName) - if module is None: - module = sys.modules[packageName] = new.module(packageName) - module.__path__ = []; _set_parent_ns(packageName) - elif not hasattr(module,'__path__'): - raise TypeError("Not a package:", packageName) - handler = _find_adapter(_namespace_handlers, importer) - subpath = handler(importer,path_item,packageName,module) - if subpath is not None: - path = module.__path__; path.append(subpath) - loader.load_module(packageName); module.__path__ = path - return subpath - -def declare_namespace(packageName): - """Declare that package 'packageName' is a namespace package""" - - imp.acquire_lock() - try: - if packageName in _namespace_packages: - return - - path, parent = sys.path, None - if '.' in packageName: - parent = '.'.join(packageName.split('.')[:-1]) - declare_namespace(parent) - __import__(parent) - try: - path = sys.modules[parent].__path__ - except AttributeError: - raise TypeError("Not a package:", parent) - - # Track what packages are namespaces, so when new path items are added, - # they can be updated - _namespace_packages.setdefault(parent,[]).append(packageName) - _namespace_packages.setdefault(packageName,[]) - - for path_item in path: - # Ensure all the parent's path items are reflected in the child, - # if they apply - _handle_ns(packageName, path_item) - - finally: - imp.release_lock() - -def fixup_namespace_packages(path_item, parent=None): - """Ensure that previously-declared namespace packages include path_item""" - imp.acquire_lock() - try: - for package in _namespace_packages.get(parent,()): - subpath = _handle_ns(package, path_item) - if subpath: fixup_namespace_packages(subpath,package) - finally: - imp.release_lock() - -def file_ns_handler(importer, path_item, packageName, module): - """Compute an ns-package subpath for a filesystem or zipfile importer""" - - subpath = os.path.join(path_item, packageName.split('.')[-1]) - normalized = _normalize_cached(subpath) - for item in module.__path__: - if _normalize_cached(item)==normalized: - break - else: - # Only return the path if it's not already there - return subpath - -register_namespace_handler(ImpWrapper,file_ns_handler) -register_namespace_handler(zipimport.zipimporter,file_ns_handler) - - -def null_ns_handler(importer, path_item, packageName, module): - return None - -register_namespace_handler(object,null_ns_handler) - - -def normalize_path(filename): - """Normalize a file/dir name for comparison purposes""" - return os.path.normcase(os.path.realpath(filename)) - -def _normalize_cached(filename,_cache={}): - try: - return _cache[filename] - except KeyError: - _cache[filename] = result = normalize_path(filename) - return result - -def _set_parent_ns(packageName): - parts = packageName.split('.') - name = parts.pop() - if parts: - parent = '.'.join(parts) - setattr(sys.modules[parent], name, sys.modules[packageName]) - - -def yield_lines(strs): - """Yield non-empty/non-comment lines of a ``basestring`` or sequence""" - if isinstance(strs,basestring): - for s in strs.splitlines(): - s = s.strip() - if s and not s.startswith('#'): # skip blank lines/comments - yield s - else: - for ss in strs: - for s in yield_lines(ss): - yield s - -LINE_END = re.compile(r"\s*(#.*)?$").match # whitespace and comment -CONTINUE = re.compile(r"\s*\\\s*(#.*)?$").match # line continuation -DISTRO = re.compile(r"\s*((\w|[-.])+)").match # Distribution or extra -VERSION = re.compile(r"\s*(<=?|>=?|==|!=)\s*((\w|[-.])+)").match # ver. info -COMMA = re.compile(r"\s*,").match # comma between items -OBRACKET = re.compile(r"\s*\[").match -CBRACKET = re.compile(r"\s*\]").match -MODULE = re.compile(r"\w+(\.\w+)*$").match -EGG_NAME = re.compile( - r"(?P[^-]+)" - r"( -(?P[^-]+) (-py(?P[^-]+) (-(?P.+))? )? )?", - re.VERBOSE | re.IGNORECASE -).match - -component_re = re.compile(r'(\d+ | [a-z]+ | \.| -)', re.VERBOSE) -replace = {'pre':'c', 'preview':'c','-':'final-','rc':'c','dev':'@'}.get - -def _parse_version_parts(s): - for part in component_re.split(s): - part = replace(part,part) - if not part or part=='.': - continue - if part[:1] in '0123456789': - yield part.zfill(8) # pad for numeric comparison - else: - yield '*'+part - - yield '*final' # ensure that alpha/beta/candidate are before final - -def parse_version(s): - """Convert a version string to a chronologically-sortable key - - This is a rough cross between distutils' StrictVersion and LooseVersion; - if you give it versions that would work with StrictVersion, then it behaves - the same; otherwise it acts like a slightly-smarter LooseVersion. It is - *possible* to create pathological version coding schemes that will fool - this parser, but they should be very rare in practice. - - The returned value will be a tuple of strings. Numeric portions of the - version are padded to 8 digits so they will compare numerically, but - without relying on how numbers compare relative to strings. Dots are - dropped, but dashes are retained. Trailing zeros between alpha segments - or dashes are suppressed, so that e.g. "2.4.0" is considered the same as - "2.4". Alphanumeric parts are lower-cased. - - The algorithm assumes that strings like "-" and any alpha string that - alphabetically follows "final" represents a "patch level". So, "2.4-1" - is assumed to be a branch or patch of "2.4", and therefore "2.4.1" is - considered newer than "2.4-1", which in turn is newer than "2.4". - - Strings like "a", "b", "c", "alpha", "beta", "candidate" and so on (that - come before "final" alphabetically) are assumed to be pre-release versions, - so that the version "2.4" is considered newer than "2.4a1". - - Finally, to handle miscellaneous cases, the strings "pre", "preview", and - "rc" are treated as if they were "c", i.e. as though they were release - candidates, and therefore are not as new as a version string that does not - contain them, and "dev" is replaced with an '@' so that it sorts lower than - than any other pre-release tag. - """ - parts = [] - for part in _parse_version_parts(s.lower()): - if part.startswith('*'): - if part<'*final': # remove '-' before a prerelease tag - while parts and parts[-1]=='*final-': parts.pop() - # remove trailing zeros from each series of numeric parts - while parts and parts[-1]=='00000000': - parts.pop() - parts.append(part) - return tuple(parts) - -class EntryPoint(object): - """Object representing an advertised importable object""" - - def __init__(self, name, module_name, attrs=(), extras=(), dist=None): - if not MODULE(module_name): - raise ValueError("Invalid module name", module_name) - self.name = name - self.module_name = module_name - self.attrs = tuple(attrs) - self.extras = Requirement.parse(("x[%s]" % ','.join(extras))).extras - self.dist = dist - - def __str__(self): - s = "%s = %s" % (self.name, self.module_name) - if self.attrs: - s += ':' + '.'.join(self.attrs) - if self.extras: - s += ' [%s]' % ','.join(self.extras) - return s - - def __repr__(self): - return "EntryPoint.parse(%r)" % str(self) - - def load(self, require=True, env=None, installer=None): - if require: self.require(env, installer) - entry = __import__(self.module_name, globals(),globals(), ['__name__']) - for attr in self.attrs: - try: - entry = getattr(entry,attr) - except AttributeError: - raise ImportError("%r has no %r attribute" % (entry,attr)) - return entry - - def require(self, env=None, installer=None): - if self.extras and not self.dist: - raise UnknownExtra("Can't require() without a distribution", self) - map(working_set.add, - working_set.resolve(self.dist.requires(self.extras),env,installer)) - - - - #@classmethod - def parse(cls, src, dist=None): - """Parse a single entry point from string `src` - - Entry point syntax follows the form:: - - name = some.module:some.attr [extra1,extra2] - - The entry name and module name are required, but the ``:attrs`` and - ``[extras]`` parts are optional - """ - try: - attrs = extras = () - name,value = src.split('=',1) - if '[' in value: - value,extras = value.split('[',1) - req = Requirement.parse("x["+extras) - if req.specs: raise ValueError - extras = req.extras - if ':' in value: - value,attrs = value.split(':',1) - if not MODULE(attrs.rstrip()): - raise ValueError - attrs = attrs.rstrip().split('.') - except ValueError: - raise ValueError( - "EntryPoint must be in 'name=module:attrs [extras]' format", - src - ) - else: - return cls(name.strip(), value.strip(), attrs, extras, dist) - - parse = classmethod(parse) - - - - - - - - - #@classmethod - def parse_group(cls, group, lines, dist=None): - """Parse an entry point group""" - if not MODULE(group): - raise ValueError("Invalid group name", group) - this = {} - for line in yield_lines(lines): - ep = cls.parse(line, dist) - if ep.name in this: - raise ValueError("Duplicate entry point", group, ep.name) - this[ep.name]=ep - return this - - parse_group = classmethod(parse_group) - - #@classmethod - def parse_map(cls, data, dist=None): - """Parse a map of entry point groups""" - if isinstance(data,dict): - data = data.items() - else: - data = split_sections(data) - maps = {} - for group, lines in data: - if group is None: - if not lines: - continue - raise ValueError("Entry points must be listed in groups") - group = group.strip() - if group in maps: - raise ValueError("Duplicate group name", group) - maps[group] = cls.parse_group(group, lines, dist) - return maps - - parse_map = classmethod(parse_map) - - - - - - -class Distribution(object): - """Wrap an actual or potential sys.path entry w/metadata""" - def __init__(self, - location=None, metadata=None, project_name=None, version=None, - py_version=PY_MAJOR, platform=None, precedence = EGG_DIST - ): - self.project_name = safe_name(project_name or 'Unknown') - if version is not None: - self._version = safe_version(version) - self.py_version = py_version - self.platform = platform - self.location = location - self.precedence = precedence - self._provider = metadata or empty_provider - - #@classmethod - def from_location(cls,location,basename,metadata=None,**kw): - project_name, version, py_version, platform = [None]*4 - basename, ext = os.path.splitext(basename) - if ext.lower() in (".egg",".egg-info"): - match = EGG_NAME(basename) - if match: - project_name, version, py_version, platform = match.group( - 'name','ver','pyver','plat' - ) - return cls( - location, metadata, project_name=project_name, version=version, - py_version=py_version, platform=platform, **kw - ) - from_location = classmethod(from_location) - - hashcmp = property( - lambda self: ( - getattr(self,'parsed_version',()), self.precedence, self.key, - -len(self.location or ''), self.location, self.py_version, - self.platform - ) - ) - def __cmp__(self, other): return cmp(self.hashcmp, other) - def __hash__(self): return hash(self.hashcmp) - - # These properties have to be lazy so that we don't have to load any - # metadata until/unless it's actually needed. (i.e., some distributions - # may not know their name or version without loading PKG-INFO) - - #@property - def key(self): - try: - return self._key - except AttributeError: - self._key = key = self.project_name.lower() - return key - key = property(key) - - #@property - def parsed_version(self): - try: - return self._parsed_version - except AttributeError: - self._parsed_version = pv = parse_version(self.version) - return pv - - parsed_version = property(parsed_version) - - #@property - def version(self): - try: - return self._version - except AttributeError: - for line in self._get_metadata('PKG-INFO'): - if line.lower().startswith('version:'): - self._version = safe_version(line.split(':',1)[1].strip()) - return self._version - else: - raise ValueError( - "Missing 'Version:' header and/or PKG-INFO file", self - ) - version = property(version) - - - - - #@property - def _dep_map(self): - try: - return self.__dep_map - except AttributeError: - dm = self.__dep_map = {None: []} - for name in 'requires.txt', 'depends.txt': - for extra,reqs in split_sections(self._get_metadata(name)): - if extra: extra = safe_extra(extra) - dm.setdefault(extra,[]).extend(parse_requirements(reqs)) - return dm - _dep_map = property(_dep_map) - - def requires(self,extras=()): - """List of Requirements needed for this distro if `extras` are used""" - dm = self._dep_map - deps = [] - deps.extend(dm.get(None,())) - for ext in extras: - try: - deps.extend(dm[safe_extra(ext)]) - except KeyError: - raise UnknownExtra( - "%s has no such extra feature %r" % (self, ext) - ) - return deps - - def _get_metadata(self,name): - if self.has_metadata(name): - for line in self.get_metadata_lines(name): - yield line - - def activate(self,path=None): - """Ensure distribution is importable on `path` (default=sys.path)""" - if path is None: path = sys.path - self.insert_on(path) - if path is sys.path: - fixup_namespace_packages(self.location) - map(declare_namespace, self._get_metadata('namespace_packages.txt')) - - - def egg_name(self): - """Return what this distribution's standard .egg filename should be""" - filename = "%s-%s-py%s" % ( - to_filename(self.project_name), to_filename(self.version), - self.py_version or PY_MAJOR - ) - - if self.platform: - filename += '-'+self.platform - return filename - - def __repr__(self): - if self.location: - return "%s (%s)" % (self,self.location) - else: - return str(self) - - def __str__(self): - try: version = getattr(self,'version',None) - except ValueError: version = None - version = version or "[unknown version]" - return "%s %s" % (self.project_name,version) - - def __getattr__(self,attr): - """Delegate all unrecognized public attributes to .metadata provider""" - if attr.startswith('_'): - raise AttributeError,attr - return getattr(self._provider, attr) - - #@classmethod - def from_filename(cls,filename,metadata=None, **kw): - return cls.from_location( - _normalize_cached(filename), os.path.basename(filename), metadata, - **kw - ) - from_filename = classmethod(from_filename) - - def as_requirement(self): - """Return a ``Requirement`` that matches this distribution exactly""" - return Requirement.parse('%s==%s' % (self.project_name, self.version)) - - def load_entry_point(self, group, name): - """Return the `name` entry point of `group` or raise ImportError""" - ep = self.get_entry_info(group,name) - if ep is None: - raise ImportError("Entry point %r not found" % ((group,name),)) - return ep.load() - - def get_entry_map(self, group=None): - """Return the entry point map for `group`, or the full entry map""" - try: - ep_map = self._ep_map - except AttributeError: - ep_map = self._ep_map = EntryPoint.parse_map( - self._get_metadata('entry_points.txt'), self - ) - if group is not None: - return ep_map.get(group,{}) - return ep_map - - def get_entry_info(self, group, name): - """Return the EntryPoint object for `group`+`name`, or ``None``""" - return self.get_entry_map(group).get(name) - - - - - - - - - - - - - - - - - - - - def insert_on(self, path, loc = None): - """Insert self.location in path before its nearest parent directory""" - - loc = loc or self.location - if not loc: - return - - if path is sys.path: - self.check_version_conflict() - - nloc = _normalize_cached(loc) - bdir = os.path.dirname(nloc) - npath= map(_normalize_cached, path) - - bp = None - for p, item in enumerate(npath): - if item==nloc: - break - elif item==bdir and self.precedence==EGG_DIST: - # if it's an .egg, give it precedence over its directory - path.insert(p, loc) - npath.insert(p, nloc) - break - else: - path.append(loc) - return - - # p is the spot where we found or inserted loc; now remove duplicates - while 1: - try: - np = npath.index(nloc, p+1) - except ValueError: - break - else: - del npath[np], path[np] - p = np # ha! - - return - - - - def check_version_conflict(self): - if self.key=='distribute': - return # ignore the inevitable setuptools self-conflicts :( - - nsp = dict.fromkeys(self._get_metadata('namespace_packages.txt')) - loc = normalize_path(self.location) - for modname in self._get_metadata('top_level.txt'): - if (modname not in sys.modules or modname in nsp - or modname in _namespace_packages - ): - continue - if modname in ('pkg_resources', 'setuptools', 'site'): - continue - fn = getattr(sys.modules[modname], '__file__', None) - if fn and normalize_path(fn).startswith(loc): - continue - issue_warning( - "Module %s was already imported from %s, but %s is being added" - " to sys.path" % (modname, fn, self.location), - ) - - def has_version(self): - try: - self.version - except ValueError: - issue_warning("Unbuilt egg for "+repr(self)) - return False - return True - - def clone(self,**kw): - """Copy this distribution, substituting in any changed keyword args""" - for attr in ( - 'project_name', 'version', 'py_version', 'platform', 'location', - 'precedence' - ): - kw.setdefault(attr, getattr(self,attr,None)) - kw.setdefault('metadata', self._provider) - return self.__class__(**kw) - - - - - #@property - def extras(self): - return [dep for dep in self._dep_map if dep] - extras = property(extras) - - -def issue_warning(*args,**kw): - level = 1 - g = globals() - try: - # find the first stack frame that is *not* code in - # the pkg_resources module, to use for the warning - while sys._getframe(level).f_globals is g: - level += 1 - except ValueError: - pass - from warnings import warn - warn(stacklevel = level+1, *args, **kw) - - - - - - - - - - - - - - - - - - - - - - - -def parse_requirements(strs): - """Yield ``Requirement`` objects for each specification in `strs` - - `strs` must be an instance of ``basestring``, or a (possibly-nested) - iterable thereof. - """ - # create a steppable iterator, so we can handle \-continuations - lines = iter(yield_lines(strs)) - - def scan_list(ITEM,TERMINATOR,line,p,groups,item_name): - - items = [] - - while not TERMINATOR(line,p): - if CONTINUE(line,p): - try: - line = lines.next(); p = 0 - except StopIteration: - raise ValueError( - "\\ must not appear on the last nonblank line" - ) - - match = ITEM(line,p) - if not match: - raise ValueError("Expected "+item_name+" in",line,"at",line[p:]) - - items.append(match.group(*groups)) - p = match.end() - - match = COMMA(line,p) - if match: - p = match.end() # skip the comma - elif not TERMINATOR(line,p): - raise ValueError( - "Expected ',' or end-of-list in",line,"at",line[p:] - ) - - match = TERMINATOR(line,p) - if match: p = match.end() # skip the terminator, if any - return line, p, items - - for line in lines: - match = DISTRO(line) - if not match: - raise ValueError("Missing distribution spec", line) - project_name = match.group(1) - p = match.end() - extras = [] - - match = OBRACKET(line,p) - if match: - p = match.end() - line, p, extras = scan_list( - DISTRO, CBRACKET, line, p, (1,), "'extra' name" - ) - - line, p, specs = scan_list(VERSION,LINE_END,line,p,(1,2),"version spec") - specs = [(op,safe_version(val)) for op,val in specs] - yield Requirement(project_name, specs, extras) - - -def _sort_dists(dists): - tmp = [(dist.hashcmp,dist) for dist in dists] - tmp.sort() - dists[::-1] = [d for hc,d in tmp] - - - - - - - - - - - - - - - - - -class Requirement: - def __init__(self, project_name, specs, extras): - """DO NOT CALL THIS UNDOCUMENTED METHOD; use Requirement.parse()!""" - self.unsafe_name, project_name = project_name, safe_name(project_name) - self.project_name, self.key = project_name, project_name.lower() - index = [(parse_version(v),state_machine[op],op,v) for op,v in specs] - index.sort() - self.specs = [(op,ver) for parsed,trans,op,ver in index] - self.index, self.extras = index, tuple(map(safe_extra,extras)) - self.hashCmp = ( - self.key, tuple([(op,parsed) for parsed,trans,op,ver in index]), - frozenset(self.extras) - ) - self.__hash = hash(self.hashCmp) - - def __str__(self): - specs = ','.join([''.join(s) for s in self.specs]) - extras = ','.join(self.extras) - if extras: extras = '[%s]' % extras - return '%s%s%s' % (self.project_name, extras, specs) - - def __eq__(self,other): - return isinstance(other,Requirement) and self.hashCmp==other.hashCmp - - def __contains__(self,item): - if isinstance(item,Distribution): - if item.key <> self.key: return False - if self.index: item = item.parsed_version # only get if we need it - elif isinstance(item,basestring): - item = parse_version(item) - last = None - for parsed,trans,op,ver in self.index: - action = trans[cmp(item,parsed)] - if action=='F': return False - elif action=='T': return True - elif action=='+': last = True - elif action=='-' or last is None: last = False - if last is None: last = True # no rules encountered - return last - - - def __hash__(self): - return self.__hash - - def __repr__(self): return "Requirement.parse(%r)" % str(self) - - #@staticmethod - def parse(s): - reqs = list(parse_requirements(s)) - if reqs: - if len(reqs)==1: - return reqs[0] - raise ValueError("Expected only one requirement", s) - raise ValueError("No requirements found", s) - - parse = staticmethod(parse) - -state_machine = { - # =>< - '<' : '--T', - '<=': 'T-T', - '>' : 'F+F', - '>=': 'T+F', - '==': 'T..', - '!=': 'F++', -} - - -def _get_mro(cls): - """Get an mro for a type or classic class""" - if not isinstance(cls,type): - class cls(cls,object): pass - return cls.__mro__[1:] - return cls.__mro__ - -def _find_adapter(registry, ob): - """Return an adapter factory for `ob` from `registry`""" - for t in _get_mro(getattr(ob, '__class__', type(ob))): - if t in registry: - return registry[t] - - -def ensure_directory(path): - """Ensure that the parent directory of `path` exists""" - dirname = os.path.dirname(path) - if not os.path.isdir(dirname): - os.makedirs(dirname) - -def split_sections(s): - """Split a string or iterable thereof into (section,content) pairs - - Each ``section`` is a stripped version of the section header ("[section]") - and each ``content`` is a list of stripped lines excluding blank lines and - comment-only lines. If there are any such lines before the first section - header, they're returned in a first ``section`` of ``None``. - """ - section = None - content = [] - for line in yield_lines(s): - if line.startswith("["): - if line.endswith("]"): - if section or content: - yield section, content - section = line[1:-1].strip() - content = [] - else: - raise ValueError("Invalid section heading", line) - else: - content.append(line) - - # wrap up last segment - yield section, content - -def _mkstemp(*args,**kw): - from tempfile import mkstemp - old_open = os.open - try: - os.open = os_open # temporarily bypass sandboxing - return mkstemp(*args,**kw) - finally: - os.open = old_open # and then put it back - - -# Set up global resource manager -_manager = ResourceManager() -def _initialize(g): - for name in dir(_manager): - if not name.startswith('_'): - g[name] = getattr(_manager, name) -_initialize(globals()) - -# Prepare the master working set and make the ``require()`` API available -working_set = WorkingSet() -try: - # Does the main program list any requirements? - from __main__ import __requires__ -except ImportError: - pass # No: just use the default working set based on sys.path -else: - # Yes: ensure the requirements are met, by prefixing sys.path if necessary - try: - working_set.require(__requires__) - except VersionConflict: # try it without defaults already on sys.path - working_set = WorkingSet([]) # by starting with an empty path - for dist in working_set.resolve( - parse_requirements(__requires__), Environment() - ): - working_set.add(dist) - for entry in sys.path: # add any missing entries from sys.path - if entry not in working_set.entries: - working_set.add_entry(entry) - sys.path[:] = working_set.entries # then copy back to sys.path - -require = working_set.require -iter_entry_points = working_set.iter_entry_points -add_activation_listener = working_set.subscribe -run_script = working_set.run_script -run_main = run_script # backward compatibility -# Activate all distributions already on sys.path, and ensure that -# all distributions added to the working set in the future (e.g. by -# calling ``require()``) will get activated as well. -add_activation_listener(lambda dist: dist.activate()) -working_set.entries=[]; map(working_set.add_entry,sys.path) # match order - diff --git a/pkg_resources/__init__.py b/pkg_resources/__init__.py new file mode 100644 index 0000000000..8a2fbfa412 --- /dev/null +++ b/pkg_resources/__init__.py @@ -0,0 +1,3714 @@ +""" +Package resource API +-------------------- + +A resource is a logical file contained within a package, or a logical +subdirectory thereof. The package resource API expects resource names +to have their path parts separated with ``/``, *not* whatever the local +path separator is. Do not use os.path operations to manipulate resource +names being passed into the API. + +The package resource API is designed to work with normal filesystem packages, +.egg files, and unpacked .egg files. It can also work in a limited way with +.zip files and with custom PEP 302 loaders that support the ``get_data()`` +method. + +This module is deprecated. Users are directed to :mod:`importlib.resources`, +:mod:`importlib.metadata` and :pypi:`packaging` instead. +""" + +from __future__ import annotations + +import sys + +if sys.version_info < (3, 9): # noqa: UP036 # Check for unsupported versions + raise RuntimeError("Python 3.9 or later is required") + +import _imp +import collections +import email.parser +import errno +import functools +import importlib +import importlib.abc +import importlib.machinery +import inspect +import io +import ntpath +import operator +import os +import pkgutil +import platform +import plistlib +import posixpath +import re +import stat +import tempfile +import textwrap +import time +import types +import warnings +import zipfile +import zipimport +from collections.abc import Iterable, Iterator, Mapping, MutableSequence +from pkgutil import get_importer +from typing import ( + TYPE_CHECKING, + Any, + BinaryIO, + Callable, + Literal, + NamedTuple, + NoReturn, + Protocol, + TypeVar, + Union, + overload, +) + +sys.path.extend(((vendor_path := os.path.join(os.path.dirname(os.path.dirname(__file__)), 'setuptools', '_vendor')) not in sys.path) * [vendor_path]) # fmt: skip +# workaround for #4476 +sys.modules.pop('backports', None) + +# capture these to bypass sandboxing +from os import open as os_open, utime # isort: skip +from os.path import isdir, split # isort: skip + +try: + from os import mkdir, rename, unlink + + WRITE_SUPPORT = True +except ImportError: + # no write support, probably under GAE + WRITE_SUPPORT = False + +import packaging.markers +import packaging.requirements +import packaging.specifiers +import packaging.utils +import packaging.version +from jaraco.text import drop_comment, join_continuation, yield_lines +from platformdirs import user_cache_dir as _user_cache_dir + +if TYPE_CHECKING: + from _typeshed import BytesPath, StrOrBytesPath, StrPath + from _typeshed.importlib import LoaderProtocol + from typing_extensions import Self, TypeAlias + +warnings.warn( + "pkg_resources is deprecated as an API. " + "See https://setuptools.pypa.io/en/latest/pkg_resources.html", + DeprecationWarning, + stacklevel=2, +) + +_T = TypeVar("_T") +_DistributionT = TypeVar("_DistributionT", bound="Distribution") +# Type aliases +_NestedStr: TypeAlias = Union[str, Iterable[Union[str, Iterable["_NestedStr"]]]] +_StrictInstallerType: TypeAlias = Callable[["Requirement"], "_DistributionT"] +_InstallerType: TypeAlias = Callable[["Requirement"], Union["Distribution", None]] +_PkgReqType: TypeAlias = Union[str, "Requirement"] +_EPDistType: TypeAlias = Union["Distribution", _PkgReqType] +_MetadataType: TypeAlias = Union["IResourceProvider", None] +_ResolvedEntryPoint: TypeAlias = Any # Can be any attribute in the module +_ResourceStream: TypeAlias = Any # TODO / Incomplete: A readable file-like object +# Any object works, but let's indicate we expect something like a module (optionally has __loader__ or __file__) +_ModuleLike: TypeAlias = Union[object, types.ModuleType] +# Any: Should be _ModuleLike but we end up with issues where _ModuleLike doesn't have _ZipLoaderModule's __loader__ +_ProviderFactoryType: TypeAlias = Callable[[Any], "IResourceProvider"] +_DistFinderType: TypeAlias = Callable[[_T, str, bool], Iterable["Distribution"]] +_NSHandlerType: TypeAlias = Callable[[_T, str, str, types.ModuleType], Union[str, None]] +_AdapterT = TypeVar( + "_AdapterT", _DistFinderType[Any], _ProviderFactoryType, _NSHandlerType[Any] +) + + +class _ZipLoaderModule(Protocol): + __loader__: zipimport.zipimporter + + +_PEP440_FALLBACK = re.compile(r"^v?(?P(?:[0-9]+!)?[0-9]+(?:\.[0-9]+)*)", re.I) + + +class PEP440Warning(RuntimeWarning): + """ + Used when there is an issue with a version or specifier not complying with + PEP 440. + """ + + +parse_version = packaging.version.Version + +_state_vars: dict[str, str] = {} + + +def _declare_state(vartype: str, varname: str, initial_value: _T) -> _T: + _state_vars[varname] = vartype + return initial_value + + +def __getstate__() -> dict[str, Any]: + state = {} + g = globals() + for k, v in _state_vars.items(): + state[k] = g['_sget_' + v](g[k]) + return state + + +def __setstate__(state: dict[str, Any]) -> dict[str, Any]: + g = globals() + for k, v in state.items(): + g['_sset_' + _state_vars[k]](k, g[k], v) + return state + + +def _sget_dict(val): + return val.copy() + + +def _sset_dict(key, ob, state) -> None: + ob.clear() + ob.update(state) + + +def _sget_object(val): + return val.__getstate__() + + +def _sset_object(key, ob, state) -> None: + ob.__setstate__(state) + + +_sget_none = _sset_none = lambda *args: None + + +def get_supported_platform(): + """Return this platform's maximum compatible version. + + distutils.util.get_platform() normally reports the minimum version + of macOS that would be required to *use* extensions produced by + distutils. But what we want when checking compatibility is to know the + version of macOS that we are *running*. To allow usage of packages that + explicitly require a newer version of macOS, we must also know the + current version of the OS. + + If this condition occurs for any other platform with a version in its + platform strings, this function should be extended accordingly. + """ + plat = get_build_platform() + m = macosVersionString.match(plat) + if m is not None and sys.platform == "darwin": + try: + major_minor = '.'.join(_macos_vers()[:2]) + build = m.group(3) + plat = f'macosx-{major_minor}-{build}' + except ValueError: + # not macOS + pass + return plat + + +__all__ = [ + # Basic resource access and distribution/entry point discovery + 'require', + 'run_script', + 'get_provider', + 'get_distribution', + 'load_entry_point', + 'get_entry_map', + 'get_entry_info', + 'iter_entry_points', + 'resource_string', + 'resource_stream', + 'resource_filename', + 'resource_listdir', + 'resource_exists', + 'resource_isdir', + # Environmental control + 'declare_namespace', + 'working_set', + 'add_activation_listener', + 'find_distributions', + 'set_extraction_path', + 'cleanup_resources', + 'get_default_cache', + # Primary implementation classes + 'Environment', + 'WorkingSet', + 'ResourceManager', + 'Distribution', + 'Requirement', + 'EntryPoint', + # Exceptions + 'ResolutionError', + 'VersionConflict', + 'DistributionNotFound', + 'UnknownExtra', + 'ExtractionError', + # Warnings + 'PEP440Warning', + # Parsing functions and string utilities + 'parse_requirements', + 'parse_version', + 'safe_name', + 'safe_version', + 'get_platform', + 'compatible_platforms', + 'yield_lines', + 'split_sections', + 'safe_extra', + 'to_filename', + 'invalid_marker', + 'evaluate_marker', + # filesystem utilities + 'ensure_directory', + 'normalize_path', + # Distribution "precedence" constants + 'EGG_DIST', + 'BINARY_DIST', + 'SOURCE_DIST', + 'CHECKOUT_DIST', + 'DEVELOP_DIST', + # "Provider" interfaces, implementations, and registration/lookup APIs + 'IMetadataProvider', + 'IResourceProvider', + 'FileMetadata', + 'PathMetadata', + 'EggMetadata', + 'EmptyProvider', + 'empty_provider', + 'NullProvider', + 'EggProvider', + 'DefaultProvider', + 'ZipProvider', + 'register_finder', + 'register_namespace_handler', + 'register_loader_type', + 'fixup_namespace_packages', + 'get_importer', + # Warnings + 'PkgResourcesDeprecationWarning', + # Deprecated/backward compatibility only + 'run_main', + 'AvailableDistributions', +] + + +class ResolutionError(Exception): + """Abstract base for dependency resolution errors""" + + def __repr__(self) -> str: + return self.__class__.__name__ + repr(self.args) + + +class VersionConflict(ResolutionError): + """ + An already-installed version conflicts with the requested version. + + Should be initialized with the installed Distribution and the requested + Requirement. + """ + + _template = "{self.dist} is installed but {self.req} is required" + + @property + def dist(self) -> Distribution: + return self.args[0] + + @property + def req(self) -> Requirement: + return self.args[1] + + def report(self): + return self._template.format(**locals()) + + def with_context( + self, required_by: set[Distribution | str] + ) -> Self | ContextualVersionConflict: + """ + If required_by is non-empty, return a version of self that is a + ContextualVersionConflict. + """ + if not required_by: + return self + args = self.args + (required_by,) + return ContextualVersionConflict(*args) + + +class ContextualVersionConflict(VersionConflict): + """ + A VersionConflict that accepts a third parameter, the set of the + requirements that required the installed Distribution. + """ + + _template = VersionConflict._template + ' by {self.required_by}' + + @property + def required_by(self) -> set[str]: + return self.args[2] + + +class DistributionNotFound(ResolutionError): + """A requested distribution was not found""" + + _template = ( + "The '{self.req}' distribution was not found " + "and is required by {self.requirers_str}" + ) + + @property + def req(self) -> Requirement: + return self.args[0] + + @property + def requirers(self) -> set[str] | None: + return self.args[1] + + @property + def requirers_str(self): + if not self.requirers: + return 'the application' + return ', '.join(self.requirers) + + def report(self): + return self._template.format(**locals()) + + def __str__(self) -> str: + return self.report() + + +class UnknownExtra(ResolutionError): + """Distribution doesn't have an "extra feature" of the given name""" + + +_provider_factories: dict[type[_ModuleLike], _ProviderFactoryType] = {} + +PY_MAJOR = f'{sys.version_info.major}.{sys.version_info.minor}' +EGG_DIST = 3 +BINARY_DIST = 2 +SOURCE_DIST = 1 +CHECKOUT_DIST = 0 +DEVELOP_DIST = -1 + + +def register_loader_type( + loader_type: type[_ModuleLike], provider_factory: _ProviderFactoryType +) -> None: + """Register `provider_factory` to make providers for `loader_type` + + `loader_type` is the type or class of a PEP 302 ``module.__loader__``, + and `provider_factory` is a function that, passed a *module* object, + returns an ``IResourceProvider`` for that module. + """ + _provider_factories[loader_type] = provider_factory + + +@overload +def get_provider(moduleOrReq: str) -> IResourceProvider: ... +@overload +def get_provider(moduleOrReq: Requirement) -> Distribution: ... +def get_provider(moduleOrReq: str | Requirement) -> IResourceProvider | Distribution: + """Return an IResourceProvider for the named module or requirement""" + if isinstance(moduleOrReq, Requirement): + return working_set.find(moduleOrReq) or require(str(moduleOrReq))[0] + try: + module = sys.modules[moduleOrReq] + except KeyError: + __import__(moduleOrReq) + module = sys.modules[moduleOrReq] + loader = getattr(module, '__loader__', None) + return _find_adapter(_provider_factories, loader)(module) + + +@functools.cache +def _macos_vers(): + version = platform.mac_ver()[0] + # fallback for MacPorts + if version == '': + plist = '/System/Library/CoreServices/SystemVersion.plist' + if os.path.exists(plist): + with open(plist, 'rb') as fh: + plist_content = plistlib.load(fh) + if 'ProductVersion' in plist_content: + version = plist_content['ProductVersion'] + return version.split('.') + + +def _macos_arch(machine): + return {'PowerPC': 'ppc', 'Power_Macintosh': 'ppc'}.get(machine, machine) + + +def get_build_platform(): + """Return this platform's string for platform-specific distributions + + XXX Currently this is the same as ``distutils.util.get_platform()``, but it + needs some hacks for Linux and macOS. + """ + from sysconfig import get_platform + + plat = get_platform() + if sys.platform == "darwin" and not plat.startswith('macosx-'): + try: + version = _macos_vers() + machine = _macos_arch(os.uname()[4].replace(" ", "_")) + return f"macosx-{version[0]}.{version[1]}-{machine}" + except ValueError: + # if someone is running a non-Mac darwin system, this will fall + # through to the default implementation + pass + return plat + + +macosVersionString = re.compile(r"macosx-(\d+)\.(\d+)-(.*)") +darwinVersionString = re.compile(r"darwin-(\d+)\.(\d+)\.(\d+)-(.*)") +# XXX backward compat +get_platform = get_build_platform + + +def compatible_platforms(provided: str | None, required: str | None) -> bool: + """Can code for the `provided` platform run on the `required` platform? + + Returns true if either platform is ``None``, or the platforms are equal. + + XXX Needs compatibility checks for Linux and other unixy OSes. + """ + if provided is None or required is None or provided == required: + # easy case + return True + + # macOS special cases + reqMac = macosVersionString.match(required) + if reqMac: + provMac = macosVersionString.match(provided) + + # is this a Mac package? + if not provMac: + # this is backwards compatibility for packages built before + # setuptools 0.6. All packages built after this point will + # use the new macOS designation. + provDarwin = darwinVersionString.match(provided) + if provDarwin: + dversion = int(provDarwin.group(1)) + macosversion = f"{reqMac.group(1)}.{reqMac.group(2)}" + if ( + dversion == 7 + and macosversion >= "10.3" + or dversion == 8 + and macosversion >= "10.4" + ): + return True + # egg isn't macOS or legacy darwin + return False + + # are they the same major version and machine type? + if provMac.group(1) != reqMac.group(1) or provMac.group(3) != reqMac.group(3): + return False + + # is the required OS major update >= the provided one? + if int(provMac.group(2)) > int(reqMac.group(2)): + return False + + return True + + # XXX Linux and other platforms' special cases should go here + return False + + +@overload +def get_distribution(dist: _DistributionT) -> _DistributionT: ... +@overload +def get_distribution(dist: _PkgReqType) -> Distribution: ... +def get_distribution(dist: Distribution | _PkgReqType) -> Distribution: + """Return a current distribution object for a Requirement or string""" + if isinstance(dist, str): + dist = Requirement.parse(dist) + if isinstance(dist, Requirement): + dist = get_provider(dist) + if not isinstance(dist, Distribution): + raise TypeError("Expected str, Requirement, or Distribution", dist) + return dist + + +def load_entry_point(dist: _EPDistType, group: str, name: str) -> _ResolvedEntryPoint: + """Return `name` entry point of `group` for `dist` or raise ImportError""" + return get_distribution(dist).load_entry_point(group, name) + + +@overload +def get_entry_map( + dist: _EPDistType, group: None = None +) -> dict[str, dict[str, EntryPoint]]: ... +@overload +def get_entry_map(dist: _EPDistType, group: str) -> dict[str, EntryPoint]: ... +def get_entry_map(dist: _EPDistType, group: str | None = None): + """Return the entry point map for `group`, or the full entry map""" + return get_distribution(dist).get_entry_map(group) + + +def get_entry_info(dist: _EPDistType, group: str, name: str) -> EntryPoint | None: + """Return the EntryPoint object for `group`+`name`, or ``None``""" + return get_distribution(dist).get_entry_info(group, name) + + +class IMetadataProvider(Protocol): + def has_metadata(self, name: str) -> bool: + """Does the package's distribution contain the named metadata?""" + ... + + def get_metadata(self, name: str) -> str: + """The named metadata resource as a string""" + ... + + def get_metadata_lines(self, name: str) -> Iterator[str]: + """Yield named metadata resource as list of non-blank non-comment lines + + Leading and trailing whitespace is stripped from each line, and lines + with ``#`` as the first non-blank character are omitted.""" + ... + + def metadata_isdir(self, name: str) -> bool: + """Is the named metadata a directory? (like ``os.path.isdir()``)""" + ... + + def metadata_listdir(self, name: str) -> list[str]: + """List of metadata names in the directory (like ``os.listdir()``)""" + ... + + def run_script(self, script_name: str, namespace: dict[str, Any]) -> None: + """Execute the named script in the supplied namespace dictionary""" + ... + + +class IResourceProvider(IMetadataProvider, Protocol): + """An object that provides access to package resources""" + + def get_resource_filename( + self, manager: ResourceManager, resource_name: str + ) -> str: + """Return a true filesystem path for `resource_name` + + `manager` must be a ``ResourceManager``""" + ... + + def get_resource_stream( + self, manager: ResourceManager, resource_name: str + ) -> _ResourceStream: + """Return a readable file-like object for `resource_name` + + `manager` must be a ``ResourceManager``""" + ... + + def get_resource_string( + self, manager: ResourceManager, resource_name: str + ) -> bytes: + """Return the contents of `resource_name` as :obj:`bytes` + + `manager` must be a ``ResourceManager``""" + ... + + def has_resource(self, resource_name: str) -> bool: + """Does the package contain the named resource?""" + ... + + def resource_isdir(self, resource_name: str) -> bool: + """Is the named resource a directory? (like ``os.path.isdir()``)""" + ... + + def resource_listdir(self, resource_name: str) -> list[str]: + """List of resource names in the directory (like ``os.listdir()``)""" + ... + + +class WorkingSet: + """A collection of active distributions on sys.path (or a similar list)""" + + def __init__(self, entries: Iterable[str] | None = None) -> None: + """Create working set from list of path entries (default=sys.path)""" + self.entries: list[str] = [] + self.entry_keys: dict[str | None, list[str]] = {} + self.by_key: dict[str, Distribution] = {} + self.normalized_to_canonical_keys: dict[str, str] = {} + self.callbacks: list[Callable[[Distribution], object]] = [] + + if entries is None: + entries = sys.path + + for entry in entries: + self.add_entry(entry) + + @classmethod + def _build_master(cls): + """ + Prepare the master working set. + """ + ws = cls() + try: + from __main__ import __requires__ + except ImportError: + # The main program does not list any requirements + return ws + + # ensure the requirements are met + try: + ws.require(__requires__) + except VersionConflict: + return cls._build_from_requirements(__requires__) + + return ws + + @classmethod + def _build_from_requirements(cls, req_spec): + """ + Build a working set from a requirement spec. Rewrites sys.path. + """ + # try it without defaults already on sys.path + # by starting with an empty path + ws = cls([]) + reqs = parse_requirements(req_spec) + dists = ws.resolve(reqs, Environment()) + for dist in dists: + ws.add(dist) + + # add any missing entries from sys.path + for entry in sys.path: + if entry not in ws.entries: + ws.add_entry(entry) + + # then copy back to sys.path + sys.path[:] = ws.entries + return ws + + def add_entry(self, entry: str) -> None: + """Add a path item to ``.entries``, finding any distributions on it + + ``find_distributions(entry, True)`` is used to find distributions + corresponding to the path entry, and they are added. `entry` is + always appended to ``.entries``, even if it is already present. + (This is because ``sys.path`` can contain the same value more than + once, and the ``.entries`` of the ``sys.path`` WorkingSet should always + equal ``sys.path``.) + """ + self.entry_keys.setdefault(entry, []) + self.entries.append(entry) + for dist in find_distributions(entry, True): + self.add(dist, entry, False) + + def __contains__(self, dist: Distribution) -> bool: + """True if `dist` is the active distribution for its project""" + return self.by_key.get(dist.key) == dist + + def find(self, req: Requirement) -> Distribution | None: + """Find a distribution matching requirement `req` + + If there is an active distribution for the requested project, this + returns it as long as it meets the version requirement specified by + `req`. But, if there is an active distribution for the project and it + does *not* meet the `req` requirement, ``VersionConflict`` is raised. + If there is no active distribution for the requested project, ``None`` + is returned. + """ + dist: Distribution | None = None + + candidates = ( + req.key, + self.normalized_to_canonical_keys.get(req.key), + safe_name(req.key).replace(".", "-"), + ) + + for candidate in filter(None, candidates): + dist = self.by_key.get(candidate) + if dist: + req.key = candidate + break + + if dist is not None and dist not in req: + # XXX add more info + raise VersionConflict(dist, req) + return dist + + def iter_entry_points( + self, group: str, name: str | None = None + ) -> Iterator[EntryPoint]: + """Yield entry point objects from `group` matching `name` + + If `name` is None, yields all entry points in `group` from all + distributions in the working set, otherwise only ones matching + both `group` and `name` are yielded (in distribution order). + """ + return ( + entry + for dist in self + for entry in dist.get_entry_map(group).values() + if name is None or name == entry.name + ) + + def run_script(self, requires: str, script_name: str) -> None: + """Locate distribution for `requires` and run `script_name` script""" + ns = sys._getframe(1).f_globals + name = ns['__name__'] + ns.clear() + ns['__name__'] = name + self.require(requires)[0].run_script(script_name, ns) + + def __iter__(self) -> Iterator[Distribution]: + """Yield distributions for non-duplicate projects in the working set + + The yield order is the order in which the items' path entries were + added to the working set. + """ + seen = set() + for item in self.entries: + if item not in self.entry_keys: + # workaround a cache issue + continue + + for key in self.entry_keys[item]: + if key not in seen: + seen.add(key) + yield self.by_key[key] + + def add( + self, + dist: Distribution, + entry: str | None = None, + insert: bool = True, + replace: bool = False, + ) -> None: + """Add `dist` to working set, associated with `entry` + + If `entry` is unspecified, it defaults to the ``.location`` of `dist`. + On exit from this routine, `entry` is added to the end of the working + set's ``.entries`` (if it wasn't already present). + + `dist` is only added to the working set if it's for a project that + doesn't already have a distribution in the set, unless `replace=True`. + If it's added, any callbacks registered with the ``subscribe()`` method + will be called. + """ + if insert: + dist.insert_on(self.entries, entry, replace=replace) + + if entry is None: + entry = dist.location + keys = self.entry_keys.setdefault(entry, []) + keys2 = self.entry_keys.setdefault(dist.location, []) + if not replace and dist.key in self.by_key: + # ignore hidden distros + return + + self.by_key[dist.key] = dist + normalized_name = packaging.utils.canonicalize_name(dist.key) + self.normalized_to_canonical_keys[normalized_name] = dist.key + if dist.key not in keys: + keys.append(dist.key) + if dist.key not in keys2: + keys2.append(dist.key) + self._added_new(dist) + + @overload + def resolve( + self, + requirements: Iterable[Requirement], + env: Environment | None, + installer: _StrictInstallerType[_DistributionT], + replace_conflicting: bool = False, + extras: tuple[str, ...] | None = None, + ) -> list[_DistributionT]: ... + @overload + def resolve( + self, + requirements: Iterable[Requirement], + env: Environment | None = None, + *, + installer: _StrictInstallerType[_DistributionT], + replace_conflicting: bool = False, + extras: tuple[str, ...] | None = None, + ) -> list[_DistributionT]: ... + @overload + def resolve( + self, + requirements: Iterable[Requirement], + env: Environment | None = None, + installer: _InstallerType | None = None, + replace_conflicting: bool = False, + extras: tuple[str, ...] | None = None, + ) -> list[Distribution]: ... + def resolve( + self, + requirements: Iterable[Requirement], + env: Environment | None = None, + installer: _InstallerType | None | _StrictInstallerType[_DistributionT] = None, + replace_conflicting: bool = False, + extras: tuple[str, ...] | None = None, + ) -> list[Distribution] | list[_DistributionT]: + """List all distributions needed to (recursively) meet `requirements` + + `requirements` must be a sequence of ``Requirement`` objects. `env`, + if supplied, should be an ``Environment`` instance. If + not supplied, it defaults to all distributions available within any + entry or distribution in the working set. `installer`, if supplied, + will be invoked with each requirement that cannot be met by an + already-installed distribution; it should return a ``Distribution`` or + ``None``. + + Unless `replace_conflicting=True`, raises a VersionConflict exception + if + any requirements are found on the path that have the correct name but + the wrong version. Otherwise, if an `installer` is supplied it will be + invoked to obtain the correct version of the requirement and activate + it. + + `extras` is a list of the extras to be used with these requirements. + This is important because extra requirements may look like `my_req; + extra = "my_extra"`, which would otherwise be interpreted as a purely + optional requirement. Instead, we want to be able to assert that these + requirements are truly required. + """ + + # set up the stack + requirements = list(requirements)[::-1] + # set of processed requirements + processed = set() + # key -> dist + best: dict[str, Distribution] = {} + to_activate: list[Distribution] = [] + + req_extras = _ReqExtras() + + # Mapping of requirement to set of distributions that required it; + # useful for reporting info about conflicts. + required_by = collections.defaultdict[Requirement, set[str]](set) + + while requirements: + # process dependencies breadth-first + req = requirements.pop(0) + if req in processed: + # Ignore cyclic or redundant dependencies + continue + + if not req_extras.markers_pass(req, extras): + continue + + dist = self._resolve_dist( + req, best, replace_conflicting, env, installer, required_by, to_activate + ) + + # push the new requirements onto the stack + new_requirements = dist.requires(req.extras)[::-1] + requirements.extend(new_requirements) + + # Register the new requirements needed by req + for new_requirement in new_requirements: + required_by[new_requirement].add(req.project_name) + req_extras[new_requirement] = req.extras + + processed.add(req) + + # return list of distros to activate + return to_activate + + def _resolve_dist( + self, req, best, replace_conflicting, env, installer, required_by, to_activate + ) -> Distribution: + dist = best.get(req.key) + if dist is None: + # Find the best distribution and add it to the map + dist = self.by_key.get(req.key) + if dist is None or (dist not in req and replace_conflicting): + ws = self + if env is None: + if dist is None: + env = Environment(self.entries) + else: + # Use an empty environment and workingset to avoid + # any further conflicts with the conflicting + # distribution + env = Environment([]) + ws = WorkingSet([]) + dist = best[req.key] = env.best_match( + req, ws, installer, replace_conflicting=replace_conflicting + ) + if dist is None: + requirers = required_by.get(req, None) + raise DistributionNotFound(req, requirers) + to_activate.append(dist) + if dist not in req: + # Oops, the "best" so far conflicts with a dependency + dependent_req = required_by[req] + raise VersionConflict(dist, req).with_context(dependent_req) + return dist + + @overload + def find_plugins( + self, + plugin_env: Environment, + full_env: Environment | None, + installer: _StrictInstallerType[_DistributionT], + fallback: bool = True, + ) -> tuple[list[_DistributionT], dict[Distribution, Exception]]: ... + @overload + def find_plugins( + self, + plugin_env: Environment, + full_env: Environment | None = None, + *, + installer: _StrictInstallerType[_DistributionT], + fallback: bool = True, + ) -> tuple[list[_DistributionT], dict[Distribution, Exception]]: ... + @overload + def find_plugins( + self, + plugin_env: Environment, + full_env: Environment | None = None, + installer: _InstallerType | None = None, + fallback: bool = True, + ) -> tuple[list[Distribution], dict[Distribution, Exception]]: ... + def find_plugins( + self, + plugin_env: Environment, + full_env: Environment | None = None, + installer: _InstallerType | None | _StrictInstallerType[_DistributionT] = None, + fallback: bool = True, + ) -> tuple[ + list[Distribution] | list[_DistributionT], + dict[Distribution, Exception], + ]: + """Find all activatable distributions in `plugin_env` + + Example usage:: + + distributions, errors = working_set.find_plugins( + Environment(plugin_dirlist) + ) + # add plugins+libs to sys.path + map(working_set.add, distributions) + # display errors + print('Could not load', errors) + + The `plugin_env` should be an ``Environment`` instance that contains + only distributions that are in the project's "plugin directory" or + directories. The `full_env`, if supplied, should be an ``Environment`` + contains all currently-available distributions. If `full_env` is not + supplied, one is created automatically from the ``WorkingSet`` this + method is called on, which will typically mean that every directory on + ``sys.path`` will be scanned for distributions. + + `installer` is a standard installer callback as used by the + ``resolve()`` method. The `fallback` flag indicates whether we should + attempt to resolve older versions of a plugin if the newest version + cannot be resolved. + + This method returns a 2-tuple: (`distributions`, `error_info`), where + `distributions` is a list of the distributions found in `plugin_env` + that were loadable, along with any other distributions that are needed + to resolve their dependencies. `error_info` is a dictionary mapping + unloadable plugin distributions to an exception instance describing the + error that occurred. Usually this will be a ``DistributionNotFound`` or + ``VersionConflict`` instance. + """ + + plugin_projects = list(plugin_env) + # scan project names in alphabetic order + plugin_projects.sort() + + error_info: dict[Distribution, Exception] = {} + distributions: dict[Distribution, Exception | None] = {} + + if full_env is None: + env = Environment(self.entries) + env += plugin_env + else: + env = full_env + plugin_env + + shadow_set = self.__class__([]) + # put all our entries in shadow_set + list(map(shadow_set.add, self)) + + for project_name in plugin_projects: + for dist in plugin_env[project_name]: + req = [dist.as_requirement()] + + try: + resolvees = shadow_set.resolve(req, env, installer) + + except ResolutionError as v: + # save error info + error_info[dist] = v + if fallback: + # try the next older version of project + continue + else: + # give up on this project, keep going + break + + else: + list(map(shadow_set.add, resolvees)) + distributions.update(dict.fromkeys(resolvees)) + + # success, no need to try any more versions of this project + break + + sorted_distributions = list(distributions) + sorted_distributions.sort() + + return sorted_distributions, error_info + + def require(self, *requirements: _NestedStr) -> list[Distribution]: + """Ensure that distributions matching `requirements` are activated + + `requirements` must be a string or a (possibly-nested) sequence + thereof, specifying the distributions and versions required. The + return value is a sequence of the distributions that needed to be + activated to fulfill the requirements; all relevant distributions are + included, even if they were already activated in this working set. + """ + needed = self.resolve(parse_requirements(requirements)) + + for dist in needed: + self.add(dist) + + return needed + + def subscribe( + self, callback: Callable[[Distribution], object], existing: bool = True + ) -> None: + """Invoke `callback` for all distributions + + If `existing=True` (default), + call on all existing ones, as well. + """ + if callback in self.callbacks: + return + self.callbacks.append(callback) + if not existing: + return + for dist in self: + callback(dist) + + def _added_new(self, dist) -> None: + for callback in self.callbacks: + callback(dist) + + def __getstate__( + self, + ) -> tuple[ + list[str], + dict[str | None, list[str]], + dict[str, Distribution], + dict[str, str], + list[Callable[[Distribution], object]], + ]: + return ( + self.entries[:], + self.entry_keys.copy(), + self.by_key.copy(), + self.normalized_to_canonical_keys.copy(), + self.callbacks[:], + ) + + def __setstate__(self, e_k_b_n_c) -> None: + entries, keys, by_key, normalized_to_canonical_keys, callbacks = e_k_b_n_c + self.entries = entries[:] + self.entry_keys = keys.copy() + self.by_key = by_key.copy() + self.normalized_to_canonical_keys = normalized_to_canonical_keys.copy() + self.callbacks = callbacks[:] + + +class _ReqExtras(dict["Requirement", tuple[str, ...]]): + """ + Map each requirement to the extras that demanded it. + """ + + def markers_pass(self, req: Requirement, extras: tuple[str, ...] | None = None): + """ + Evaluate markers for req against each extra that + demanded it. + + Return False if the req has a marker and fails + evaluation. Otherwise, return True. + """ + return not req.marker or any( + req.marker.evaluate({'extra': extra}) + for extra in self.get(req, ()) + (extras or ("",)) + ) + + +class Environment: + """Searchable snapshot of distributions on a search path""" + + def __init__( + self, + search_path: Iterable[str] | None = None, + platform: str | None = get_supported_platform(), + python: str | None = PY_MAJOR, + ) -> None: + """Snapshot distributions available on a search path + + Any distributions found on `search_path` are added to the environment. + `search_path` should be a sequence of ``sys.path`` items. If not + supplied, ``sys.path`` is used. + + `platform` is an optional string specifying the name of the platform + that platform-specific distributions must be compatible with. If + unspecified, it defaults to the current platform. `python` is an + optional string naming the desired version of Python (e.g. ``'3.6'``); + it defaults to the current version. + + You may explicitly set `platform` (and/or `python`) to ``None`` if you + wish to map *all* distributions, not just those compatible with the + running platform or Python version. + """ + self._distmap: dict[str, list[Distribution]] = {} + self.platform = platform + self.python = python + self.scan(search_path) + + def can_add(self, dist: Distribution) -> bool: + """Is distribution `dist` acceptable for this environment? + + The distribution must match the platform and python version + requirements specified when this environment was created, or False + is returned. + """ + py_compat = ( + self.python is None + or dist.py_version is None + or dist.py_version == self.python + ) + return py_compat and compatible_platforms(dist.platform, self.platform) + + def remove(self, dist: Distribution) -> None: + """Remove `dist` from the environment""" + self._distmap[dist.key].remove(dist) + + def scan(self, search_path: Iterable[str] | None = None) -> None: + """Scan `search_path` for distributions usable in this environment + + Any distributions found are added to the environment. + `search_path` should be a sequence of ``sys.path`` items. If not + supplied, ``sys.path`` is used. Only distributions conforming to + the platform/python version defined at initialization are added. + """ + if search_path is None: + search_path = sys.path + + for item in search_path: + for dist in find_distributions(item): + self.add(dist) + + def __getitem__(self, project_name: str) -> list[Distribution]: + """Return a newest-to-oldest list of distributions for `project_name` + + Uses case-insensitive `project_name` comparison, assuming all the + project's distributions use their project's name converted to all + lowercase as their key. + + """ + distribution_key = project_name.lower() + return self._distmap.get(distribution_key, []) + + def add(self, dist: Distribution) -> None: + """Add `dist` if we ``can_add()`` it and it has not already been added""" + if self.can_add(dist) and dist.has_version(): + dists = self._distmap.setdefault(dist.key, []) + if dist not in dists: + dists.append(dist) + dists.sort(key=operator.attrgetter('hashcmp'), reverse=True) + + @overload + def best_match( + self, + req: Requirement, + working_set: WorkingSet, + installer: _StrictInstallerType[_DistributionT], + replace_conflicting: bool = False, + ) -> _DistributionT: ... + @overload + def best_match( + self, + req: Requirement, + working_set: WorkingSet, + installer: _InstallerType | None = None, + replace_conflicting: bool = False, + ) -> Distribution | None: ... + def best_match( + self, + req: Requirement, + working_set: WorkingSet, + installer: _InstallerType | None | _StrictInstallerType[_DistributionT] = None, + replace_conflicting: bool = False, + ) -> Distribution | None: + """Find distribution best matching `req` and usable on `working_set` + + This calls the ``find(req)`` method of the `working_set` to see if a + suitable distribution is already active. (This may raise + ``VersionConflict`` if an unsuitable version of the project is already + active in the specified `working_set`.) If a suitable distribution + isn't active, this method returns the newest distribution in the + environment that meets the ``Requirement`` in `req`. If no suitable + distribution is found, and `installer` is supplied, then the result of + calling the environment's ``obtain(req, installer)`` method will be + returned. + """ + try: + dist = working_set.find(req) + except VersionConflict: + if not replace_conflicting: + raise + dist = None + if dist is not None: + return dist + for dist in self[req.key]: + if dist in req: + return dist + # try to download/install + return self.obtain(req, installer) + + @overload + def obtain( + self, + requirement: Requirement, + installer: _StrictInstallerType[_DistributionT], + ) -> _DistributionT: ... + @overload + def obtain( + self, + requirement: Requirement, + installer: Callable[[Requirement], None] | None = None, + ) -> None: ... + @overload + def obtain( + self, + requirement: Requirement, + installer: _InstallerType | None = None, + ) -> Distribution | None: ... + def obtain( + self, + requirement: Requirement, + installer: Callable[[Requirement], None] + | _InstallerType + | None + | _StrictInstallerType[_DistributionT] = None, + ) -> Distribution | None: + """Obtain a distribution matching `requirement` (e.g. via download) + + Obtain a distro that matches requirement (e.g. via download). In the + base ``Environment`` class, this routine just returns + ``installer(requirement)``, unless `installer` is None, in which case + None is returned instead. This method is a hook that allows subclasses + to attempt other ways of obtaining a distribution before falling back + to the `installer` argument.""" + return installer(requirement) if installer else None + + def __iter__(self) -> Iterator[str]: + """Yield the unique project names of the available distributions""" + for key in self._distmap.keys(): + if self[key]: + yield key + + def __iadd__(self, other: Distribution | Environment) -> Self: + """In-place addition of a distribution or environment""" + if isinstance(other, Distribution): + self.add(other) + elif isinstance(other, Environment): + for project in other: + for dist in other[project]: + self.add(dist) + else: + raise TypeError(f"Can't add {other!r} to environment") + return self + + def __add__(self, other: Distribution | Environment) -> Self: + """Add an environment or distribution to an environment""" + new = self.__class__([], platform=None, python=None) + for env in self, other: + new += env + return new + + +# XXX backward compatibility +AvailableDistributions = Environment + + +class ExtractionError(RuntimeError): + """An error occurred extracting a resource + + The following attributes are available from instances of this exception: + + manager + The resource manager that raised this exception + + cache_path + The base directory for resource extraction + + original_error + The exception instance that caused extraction to fail + """ + + manager: ResourceManager + cache_path: str + original_error: BaseException | None + + +class ResourceManager: + """Manage resource extraction and packages""" + + extraction_path: str | None = None + + def __init__(self) -> None: + # acts like a set + self.cached_files: dict[str, Literal[True]] = {} + + def resource_exists( + self, package_or_requirement: _PkgReqType, resource_name: str + ) -> bool: + """Does the named resource exist?""" + return get_provider(package_or_requirement).has_resource(resource_name) + + def resource_isdir( + self, package_or_requirement: _PkgReqType, resource_name: str + ) -> bool: + """Is the named resource an existing directory?""" + return get_provider(package_or_requirement).resource_isdir(resource_name) + + def resource_filename( + self, package_or_requirement: _PkgReqType, resource_name: str + ) -> str: + """Return a true filesystem path for specified resource""" + return get_provider(package_or_requirement).get_resource_filename( + self, resource_name + ) + + def resource_stream( + self, package_or_requirement: _PkgReqType, resource_name: str + ) -> _ResourceStream: + """Return a readable file-like object for specified resource""" + return get_provider(package_or_requirement).get_resource_stream( + self, resource_name + ) + + def resource_string( + self, package_or_requirement: _PkgReqType, resource_name: str + ) -> bytes: + """Return specified resource as :obj:`bytes`""" + return get_provider(package_or_requirement).get_resource_string( + self, resource_name + ) + + def resource_listdir( + self, package_or_requirement: _PkgReqType, resource_name: str + ) -> list[str]: + """List the contents of the named resource directory""" + return get_provider(package_or_requirement).resource_listdir(resource_name) + + def extraction_error(self) -> NoReturn: + """Give an error message for problems extracting file(s)""" + + old_exc = sys.exc_info()[1] + cache_path = self.extraction_path or get_default_cache() + + tmpl = textwrap.dedent( + """ + Can't extract file(s) to egg cache + + The following error occurred while trying to extract file(s) + to the Python egg cache: + + {old_exc} + + The Python egg cache directory is currently set to: + + {cache_path} + + Perhaps your account does not have write access to this directory? + You can change the cache directory by setting the PYTHON_EGG_CACHE + environment variable to point to an accessible directory. + """ + ).lstrip() + err = ExtractionError(tmpl.format(**locals())) + err.manager = self + err.cache_path = cache_path + err.original_error = old_exc + raise err + + def get_cache_path(self, archive_name: str, names: Iterable[StrPath] = ()) -> str: + """Return absolute location in cache for `archive_name` and `names` + + The parent directory of the resulting path will be created if it does + not already exist. `archive_name` should be the base filename of the + enclosing egg (which may not be the name of the enclosing zipfile!), + including its ".egg" extension. `names`, if provided, should be a + sequence of path name parts "under" the egg's extraction location. + + This method should only be called by resource providers that need to + obtain an extraction location, and only for names they intend to + extract, as it tracks the generated names for possible cleanup later. + """ + extract_path = self.extraction_path or get_default_cache() + target_path = os.path.join(extract_path, archive_name + '-tmp', *names) + try: + _bypass_ensure_directory(target_path) + except Exception: + self.extraction_error() + + self._warn_unsafe_extraction_path(extract_path) + + self.cached_files[target_path] = True + return target_path + + @staticmethod + def _warn_unsafe_extraction_path(path) -> None: + """ + If the default extraction path is overridden and set to an insecure + location, such as /tmp, it opens up an opportunity for an attacker to + replace an extracted file with an unauthorized payload. Warn the user + if a known insecure location is used. + + See Distribute #375 for more details. + """ + if os.name == 'nt' and not path.startswith(os.environ['windir']): + # On Windows, permissions are generally restrictive by default + # and temp directories are not writable by other users, so + # bypass the warning. + return + mode = os.stat(path).st_mode + if mode & stat.S_IWOTH or mode & stat.S_IWGRP: + msg = ( + "Extraction path is writable by group/others " + "and vulnerable to attack when " + "used with get_resource_filename ({path}). " + "Consider a more secure " + "location (set with .set_extraction_path or the " + "PYTHON_EGG_CACHE environment variable)." + ).format(**locals()) + warnings.warn(msg, UserWarning) + + def postprocess(self, tempname: StrOrBytesPath, filename: StrOrBytesPath) -> None: + """Perform any platform-specific postprocessing of `tempname` + + This is where Mac header rewrites should be done; other platforms don't + have anything special they should do. + + Resource providers should call this method ONLY after successfully + extracting a compressed resource. They must NOT call it on resources + that are already in the filesystem. + + `tempname` is the current (temporary) name of the file, and `filename` + is the name it will be renamed to by the caller after this routine + returns. + """ + + if os.name == 'posix': + # Make the resource executable + mode = ((os.stat(tempname).st_mode) | 0o555) & 0o7777 + os.chmod(tempname, mode) + + def set_extraction_path(self, path: str) -> None: + """Set the base path where resources will be extracted to, if needed. + + If you do not call this routine before any extractions take place, the + path defaults to the return value of ``get_default_cache()``. (Which + is based on the ``PYTHON_EGG_CACHE`` environment variable, with various + platform-specific fallbacks. See that routine's documentation for more + details.) + + Resources are extracted to subdirectories of this path based upon + information given by the ``IResourceProvider``. You may set this to a + temporary directory, but then you must call ``cleanup_resources()`` to + delete the extracted files when done. There is no guarantee that + ``cleanup_resources()`` will be able to remove all extracted files. + + (Note: you may not change the extraction path for a given resource + manager once resources have been extracted, unless you first call + ``cleanup_resources()``.) + """ + if self.cached_files: + raise ValueError("Can't change extraction path, files already extracted") + + self.extraction_path = path + + def cleanup_resources(self, force: bool = False) -> list[str]: + """ + Delete all extracted resource files and directories, returning a list + of the file and directory names that could not be successfully removed. + This function does not have any concurrency protection, so it should + generally only be called when the extraction path is a temporary + directory exclusive to a single process. This method is not + automatically called; you must call it explicitly or register it as an + ``atexit`` function if you wish to ensure cleanup of a temporary + directory used for extractions. + """ + # XXX + return [] + + +def get_default_cache() -> str: + """ + Return the ``PYTHON_EGG_CACHE`` environment variable + or a platform-relevant user cache dir for an app + named "Python-Eggs". + """ + return os.environ.get('PYTHON_EGG_CACHE') or _user_cache_dir(appname='Python-Eggs') + + +def safe_name(name: str) -> str: + """Convert an arbitrary string to a standard distribution name + + Any runs of non-alphanumeric/. characters are replaced with a single '-'. + """ + return re.sub('[^A-Za-z0-9.]+', '-', name) + + +def safe_version(version: str) -> str: + """ + Convert an arbitrary string to a standard version string + """ + try: + # normalize the version + return str(packaging.version.Version(version)) + except packaging.version.InvalidVersion: + version = version.replace(' ', '.') + return re.sub('[^A-Za-z0-9.]+', '-', version) + + +def _forgiving_version(version) -> str: + """Fallback when ``safe_version`` is not safe enough + >>> parse_version(_forgiving_version('0.23ubuntu1')) + + >>> parse_version(_forgiving_version('0.23-')) + + >>> parse_version(_forgiving_version('0.-_')) + + >>> parse_version(_forgiving_version('42.+?1')) + + >>> parse_version(_forgiving_version('hello world')) + + """ + version = version.replace(' ', '.') + match = _PEP440_FALLBACK.search(version) + if match: + safe = match["safe"] + rest = version[len(safe) :] + else: + safe = "0" + rest = version + local = f"sanitized.{_safe_segment(rest)}".strip(".") + return f"{safe}.dev0+{local}" + + +def _safe_segment(segment): + """Convert an arbitrary string into a safe segment""" + segment = re.sub('[^A-Za-z0-9.]+', '-', segment) + segment = re.sub('-[^A-Za-z0-9]+', '-', segment) + return re.sub(r'\.[^A-Za-z0-9]+', '.', segment).strip(".-") + + +def safe_extra(extra: str) -> str: + """Convert an arbitrary string to a standard 'extra' name + + Any runs of non-alphanumeric characters are replaced with a single '_', + and the result is always lowercased. + """ + return re.sub('[^A-Za-z0-9.-]+', '_', extra).lower() + + +def to_filename(name: str) -> str: + """Convert a project or version name to its filename-escaped form + + Any '-' characters are currently replaced with '_'. + """ + return name.replace('-', '_') + + +def invalid_marker(text: str) -> SyntaxError | Literal[False]: + """ + Validate text as a PEP 508 environment marker; return an exception + if invalid or False otherwise. + """ + try: + evaluate_marker(text) + except SyntaxError as e: + e.filename = None + e.lineno = None + return e + return False + + +def evaluate_marker(text: str, extra: str | None = None) -> bool: + """ + Evaluate a PEP 508 environment marker. + Return a boolean indicating the marker result in this environment. + Raise SyntaxError if marker is invalid. + + This implementation uses the 'pyparsing' module. + """ + try: + marker = packaging.markers.Marker(text) + return marker.evaluate() + except packaging.markers.InvalidMarker as e: + raise SyntaxError(e) from e + + +class NullProvider: + """Try to implement resources and metadata for arbitrary PEP 302 loaders""" + + egg_name: str | None = None + egg_info: str | None = None + loader: LoaderProtocol | None = None + + def __init__(self, module: _ModuleLike) -> None: + self.loader = getattr(module, '__loader__', None) + self.module_path = os.path.dirname(getattr(module, '__file__', '')) + + def get_resource_filename( + self, manager: ResourceManager, resource_name: str + ) -> str: + return self._fn(self.module_path, resource_name) + + def get_resource_stream( + self, manager: ResourceManager, resource_name: str + ) -> BinaryIO: + return io.BytesIO(self.get_resource_string(manager, resource_name)) + + def get_resource_string( + self, manager: ResourceManager, resource_name: str + ) -> bytes: + return self._get(self._fn(self.module_path, resource_name)) + + def has_resource(self, resource_name: str) -> bool: + return self._has(self._fn(self.module_path, resource_name)) + + def _get_metadata_path(self, name): + return self._fn(self.egg_info, name) + + def has_metadata(self, name: str) -> bool: + if not self.egg_info: + return False + + path = self._get_metadata_path(name) + return self._has(path) + + def get_metadata(self, name: str) -> str: + if not self.egg_info: + return "" + path = self._get_metadata_path(name) + value = self._get(path) + try: + return value.decode('utf-8') + except UnicodeDecodeError as exc: + # Include the path in the error message to simplify + # troubleshooting, and without changing the exception type. + exc.reason += f' in {name} file at path: {path}' + raise + + def get_metadata_lines(self, name: str) -> Iterator[str]: + return yield_lines(self.get_metadata(name)) + + def resource_isdir(self, resource_name: str) -> bool: + return self._isdir(self._fn(self.module_path, resource_name)) + + def metadata_isdir(self, name: str) -> bool: + return bool(self.egg_info and self._isdir(self._fn(self.egg_info, name))) + + def resource_listdir(self, resource_name: str) -> list[str]: + return self._listdir(self._fn(self.module_path, resource_name)) + + def metadata_listdir(self, name: str) -> list[str]: + if self.egg_info: + return self._listdir(self._fn(self.egg_info, name)) + return [] + + def run_script(self, script_name: str, namespace: dict[str, Any]) -> None: + script = 'scripts/' + script_name + if not self.has_metadata(script): + raise ResolutionError( + "Script {script!r} not found in metadata at {self.egg_info!r}".format( + **locals() + ), + ) + + script_text = self.get_metadata(script).replace('\r\n', '\n') + script_text = script_text.replace('\r', '\n') + script_filename = self._fn(self.egg_info, script) + namespace['__file__'] = script_filename + if os.path.exists(script_filename): + source = _read_utf8_with_fallback(script_filename) + code = compile(source, script_filename, 'exec') + exec(code, namespace, namespace) + else: + from linecache import cache + + cache[script_filename] = ( + len(script_text), + 0, + script_text.split('\n'), + script_filename, + ) + script_code = compile(script_text, script_filename, 'exec') + exec(script_code, namespace, namespace) + + def _has(self, path) -> bool: + raise NotImplementedError( + "Can't perform this operation for unregistered loader type" + ) + + def _isdir(self, path) -> bool: + raise NotImplementedError( + "Can't perform this operation for unregistered loader type" + ) + + def _listdir(self, path) -> list[str]: + raise NotImplementedError( + "Can't perform this operation for unregistered loader type" + ) + + def _fn(self, base: str | None, resource_name: str): + if base is None: + raise TypeError( + "`base` parameter in `_fn` is `None`. Either override this method or check the parameter first." + ) + self._validate_resource_path(resource_name) + if resource_name: + return os.path.join(base, *resource_name.split('/')) + return base + + @staticmethod + def _validate_resource_path(path) -> None: + """ + Validate the resource paths according to the docs. + https://setuptools.pypa.io/en/latest/pkg_resources.html#basic-resource-access + + >>> warned = getfixture('recwarn') + >>> warnings.simplefilter('always') + >>> vrp = NullProvider._validate_resource_path + >>> vrp('foo/bar.txt') + >>> bool(warned) + False + >>> vrp('../foo/bar.txt') + >>> bool(warned) + True + >>> warned.clear() + >>> vrp('/foo/bar.txt') + >>> bool(warned) + True + >>> vrp('foo/../../bar.txt') + >>> bool(warned) + True + >>> warned.clear() + >>> vrp('foo/f../bar.txt') + >>> bool(warned) + False + + Windows path separators are straight-up disallowed. + >>> vrp(r'\\foo/bar.txt') + Traceback (most recent call last): + ... + ValueError: Use of .. or absolute path in a resource path \ +is not allowed. + + >>> vrp(r'C:\\foo/bar.txt') + Traceback (most recent call last): + ... + ValueError: Use of .. or absolute path in a resource path \ +is not allowed. + + Blank values are allowed + + >>> vrp('') + >>> bool(warned) + False + + Non-string values are not. + + >>> vrp(None) + Traceback (most recent call last): + ... + AttributeError: ... + """ + invalid = ( + os.path.pardir in path.split(posixpath.sep) + or posixpath.isabs(path) + or ntpath.isabs(path) + or path.startswith("\\") + ) + if not invalid: + return + + msg = "Use of .. or absolute path in a resource path is not allowed." + + # Aggressively disallow Windows absolute paths + if (path.startswith("\\") or ntpath.isabs(path)) and not posixpath.isabs(path): + raise ValueError(msg) + + # for compatibility, warn; in future + # raise ValueError(msg) + issue_warning( + msg[:-1] + " and will raise exceptions in a future release.", + DeprecationWarning, + ) + + def _get(self, path) -> bytes: + if hasattr(self.loader, 'get_data') and self.loader: + # Already checked get_data exists + return self.loader.get_data(path) # type: ignore[attr-defined] + raise NotImplementedError( + "Can't perform this operation for loaders without 'get_data()'" + ) + + +register_loader_type(object, NullProvider) + + +def _parents(path): + """ + yield all parents of path including path + """ + last = None + while path != last: + yield path + last = path + path, _ = os.path.split(path) + + +class EggProvider(NullProvider): + """Provider based on a virtual filesystem""" + + def __init__(self, module: _ModuleLike) -> None: + super().__init__(module) + self._setup_prefix() + + def _setup_prefix(self): + # Assume that metadata may be nested inside a "basket" + # of multiple eggs and use module_path instead of .archive. + eggs = filter(_is_egg_path, _parents(self.module_path)) + egg = next(eggs, None) + egg and self._set_egg(egg) + + def _set_egg(self, path: str) -> None: + self.egg_name = os.path.basename(path) + self.egg_info = os.path.join(path, 'EGG-INFO') + self.egg_root = path + + +class DefaultProvider(EggProvider): + """Provides access to package resources in the filesystem""" + + def _has(self, path) -> bool: + return os.path.exists(path) + + def _isdir(self, path) -> bool: + return os.path.isdir(path) + + def _listdir(self, path): + return os.listdir(path) + + def get_resource_stream( + self, manager: object, resource_name: str + ) -> io.BufferedReader: + return open(self._fn(self.module_path, resource_name), 'rb') + + def _get(self, path) -> bytes: + with open(path, 'rb') as stream: + return stream.read() + + @classmethod + def _register(cls) -> None: + loader_names = ( + 'SourceFileLoader', + 'SourcelessFileLoader', + ) + for name in loader_names: + loader_cls = getattr(importlib.machinery, name, type(None)) + register_loader_type(loader_cls, cls) + + +DefaultProvider._register() + + +class EmptyProvider(NullProvider): + """Provider that returns nothing for all requests""" + + # A special case, we don't want all Providers inheriting from NullProvider to have a potentially None module_path + module_path: str | None = None # type: ignore[assignment] + + _isdir = _has = lambda self, path: False + + def _get(self, path) -> bytes: + return b'' + + def _listdir(self, path): + return [] + + def __init__(self) -> None: + pass + + +empty_provider = EmptyProvider() + + +class ZipManifests(dict[str, "MemoizedZipManifests.manifest_mod"]): + """ + zip manifest builder + """ + + # `path` could be `StrPath | IO[bytes]` but that violates the LSP for `MemoizedZipManifests.load` + @classmethod + def build(cls, path: str) -> dict[str, zipfile.ZipInfo]: + """ + Build a dictionary similar to the zipimport directory + caches, except instead of tuples, store ZipInfo objects. + + Use a platform-specific path separator (os.sep) for the path keys + for compatibility with pypy on Windows. + """ + with zipfile.ZipFile(path) as zfile: + items = ( + ( + name.replace('/', os.sep), + zfile.getinfo(name), + ) + for name in zfile.namelist() + ) + return dict(items) + + load = build + + +class MemoizedZipManifests(ZipManifests): + """ + Memoized zipfile manifests. + """ + + class manifest_mod(NamedTuple): + manifest: dict[str, zipfile.ZipInfo] + mtime: float + + def load(self, path: str) -> dict[str, zipfile.ZipInfo]: # type: ignore[override] # ZipManifests.load is a classmethod + """ + Load a manifest at path or return a suitable manifest already loaded. + """ + path = os.path.normpath(path) + mtime = os.stat(path).st_mtime + + if path not in self or self[path].mtime != mtime: + manifest = self.build(path) + self[path] = self.manifest_mod(manifest, mtime) + + return self[path].manifest + + +class ZipProvider(EggProvider): + """Resource support for zips and eggs""" + + eagers: list[str] | None = None + _zip_manifests = MemoizedZipManifests() + # ZipProvider's loader should always be a zipimporter or equivalent + loader: zipimport.zipimporter + + def __init__(self, module: _ZipLoaderModule) -> None: + super().__init__(module) + self.zip_pre = self.loader.archive + os.sep + + def _zipinfo_name(self, fspath): + # Convert a virtual filename (full path to file) into a zipfile subpath + # usable with the zipimport directory cache for our target archive + fspath = fspath.rstrip(os.sep) + if fspath == self.loader.archive: + return '' + if fspath.startswith(self.zip_pre): + return fspath[len(self.zip_pre) :] + raise AssertionError(f"{fspath} is not a subpath of {self.zip_pre}") + + def _parts(self, zip_path): + # Convert a zipfile subpath into an egg-relative path part list. + # pseudo-fs path + fspath = self.zip_pre + zip_path + if fspath.startswith(self.egg_root + os.sep): + return fspath[len(self.egg_root) + 1 :].split(os.sep) + raise AssertionError(f"{fspath} is not a subpath of {self.egg_root}") + + @property + def zipinfo(self): + return self._zip_manifests.load(self.loader.archive) + + def get_resource_filename( + self, manager: ResourceManager, resource_name: str + ) -> str: + if not self.egg_name: + raise NotImplementedError( + "resource_filename() only supported for .egg, not .zip" + ) + # no need to lock for extraction, since we use temp names + zip_path = self._resource_to_zip(resource_name) + eagers = self._get_eager_resources() + if '/'.join(self._parts(zip_path)) in eagers: + for name in eagers: + self._extract_resource(manager, self._eager_to_zip(name)) + return self._extract_resource(manager, zip_path) + + @staticmethod + def _get_date_and_size(zip_stat): + size = zip_stat.file_size + # ymdhms+wday, yday, dst + date_time = zip_stat.date_time + (0, 0, -1) + # 1980 offset already done + timestamp = time.mktime(date_time) + return timestamp, size + + # FIXME: 'ZipProvider._extract_resource' is too complex (12) + def _extract_resource(self, manager: ResourceManager, zip_path) -> str: # noqa: C901 + if zip_path in self._index(): + for name in self._index()[zip_path]: + last = self._extract_resource(manager, os.path.join(zip_path, name)) + # return the extracted directory name + return os.path.dirname(last) + + timestamp, _size = self._get_date_and_size(self.zipinfo[zip_path]) + + if not WRITE_SUPPORT: + raise OSError( + '"os.rename" and "os.unlink" are not supported on this platform' + ) + try: + if not self.egg_name: + raise OSError( + '"egg_name" is empty. This likely means no egg could be found from the "module_path".' + ) + real_path = manager.get_cache_path(self.egg_name, self._parts(zip_path)) + + if self._is_current(real_path, zip_path): + return real_path + + outf, tmpnam = _mkstemp( + ".$extract", + dir=os.path.dirname(real_path), + ) + os.write(outf, self.loader.get_data(zip_path)) + os.close(outf) + utime(tmpnam, (timestamp, timestamp)) + manager.postprocess(tmpnam, real_path) + + try: + rename(tmpnam, real_path) + + except OSError: + if os.path.isfile(real_path): + if self._is_current(real_path, zip_path): + # the file became current since it was checked above, + # so proceed. + return real_path + # Windows, del old file and retry + elif os.name == 'nt': + unlink(real_path) + rename(tmpnam, real_path) + return real_path + raise + + except OSError: + # report a user-friendly error + manager.extraction_error() + + return real_path + + def _is_current(self, file_path, zip_path): + """ + Return True if the file_path is current for this zip_path + """ + timestamp, size = self._get_date_and_size(self.zipinfo[zip_path]) + if not os.path.isfile(file_path): + return False + stat = os.stat(file_path) + if stat.st_size != size or stat.st_mtime != timestamp: + return False + # check that the contents match + zip_contents = self.loader.get_data(zip_path) + with open(file_path, 'rb') as f: + file_contents = f.read() + return zip_contents == file_contents + + def _get_eager_resources(self): + if self.eagers is None: + eagers = [] + for name in ('native_libs.txt', 'eager_resources.txt'): + if self.has_metadata(name): + eagers.extend(self.get_metadata_lines(name)) + self.eagers = eagers + return self.eagers + + def _index(self): + try: + return self._dirindex + except AttributeError: + ind = {} + for path in self.zipinfo: + parts = path.split(os.sep) + while parts: + parent = os.sep.join(parts[:-1]) + if parent in ind: + ind[parent].append(parts[-1]) + break + else: + ind[parent] = [parts.pop()] + self._dirindex = ind + return ind + + def _has(self, fspath) -> bool: + zip_path = self._zipinfo_name(fspath) + return zip_path in self.zipinfo or zip_path in self._index() + + def _isdir(self, fspath) -> bool: + return self._zipinfo_name(fspath) in self._index() + + def _listdir(self, fspath): + return list(self._index().get(self._zipinfo_name(fspath), ())) + + def _eager_to_zip(self, resource_name: str): + return self._zipinfo_name(self._fn(self.egg_root, resource_name)) + + def _resource_to_zip(self, resource_name: str): + return self._zipinfo_name(self._fn(self.module_path, resource_name)) + + +register_loader_type(zipimport.zipimporter, ZipProvider) + + +class FileMetadata(EmptyProvider): + """Metadata handler for standalone PKG-INFO files + + Usage:: + + metadata = FileMetadata("/path/to/PKG-INFO") + + This provider rejects all data and metadata requests except for PKG-INFO, + which is treated as existing, and will be the contents of the file at + the provided location. + """ + + def __init__(self, path: StrPath) -> None: + self.path = path + + def _get_metadata_path(self, name): + return self.path + + def has_metadata(self, name: str) -> bool: + return name == 'PKG-INFO' and os.path.isfile(self.path) + + def get_metadata(self, name: str) -> str: + if name != 'PKG-INFO': + raise KeyError("No metadata except PKG-INFO is available") + + with open(self.path, encoding='utf-8', errors="replace") as f: + metadata = f.read() + self._warn_on_replacement(metadata) + return metadata + + def _warn_on_replacement(self, metadata) -> None: + replacement_char = '�' + if replacement_char in metadata: + tmpl = "{self.path} could not be properly decoded in UTF-8" + msg = tmpl.format(**locals()) + warnings.warn(msg) + + def get_metadata_lines(self, name: str) -> Iterator[str]: + return yield_lines(self.get_metadata(name)) + + +class PathMetadata(DefaultProvider): + """Metadata provider for egg directories + + Usage:: + + # Development eggs: + + egg_info = "/path/to/PackageName.egg-info" + base_dir = os.path.dirname(egg_info) + metadata = PathMetadata(base_dir, egg_info) + dist_name = os.path.splitext(os.path.basename(egg_info))[0] + dist = Distribution(basedir, project_name=dist_name, metadata=metadata) + + # Unpacked egg directories: + + egg_path = "/path/to/PackageName-ver-pyver-etc.egg" + metadata = PathMetadata(egg_path, os.path.join(egg_path,'EGG-INFO')) + dist = Distribution.from_filename(egg_path, metadata=metadata) + """ + + def __init__(self, path: str, egg_info: str) -> None: + self.module_path = path + self.egg_info = egg_info + + +class EggMetadata(ZipProvider): + """Metadata provider for .egg files""" + + def __init__(self, importer: zipimport.zipimporter) -> None: + """Create a metadata provider from a zipimporter""" + + self.zip_pre = importer.archive + os.sep + self.loader = importer + if importer.prefix: + self.module_path = os.path.join(importer.archive, importer.prefix) + else: + self.module_path = importer.archive + self._setup_prefix() + + +_distribution_finders: dict[type, _DistFinderType[Any]] = _declare_state( + 'dict', '_distribution_finders', {} +) + + +def register_finder( + importer_type: type[_T], distribution_finder: _DistFinderType[_T] +) -> None: + """Register `distribution_finder` to find distributions in sys.path items + + `importer_type` is the type or class of a PEP 302 "Importer" (sys.path item + handler), and `distribution_finder` is a callable that, passed a path + item and the importer instance, yields ``Distribution`` instances found on + that path item. See ``pkg_resources.find_on_path`` for an example.""" + _distribution_finders[importer_type] = distribution_finder + + +def find_distributions(path_item: str, only: bool = False) -> Iterable[Distribution]: + """Yield distributions accessible via `path_item`""" + importer = get_importer(path_item) + finder = _find_adapter(_distribution_finders, importer) + return finder(importer, path_item, only) + + +def find_eggs_in_zip( + importer: zipimport.zipimporter, path_item: str, only: bool = False +) -> Iterator[Distribution]: + """ + Find eggs in zip files; possibly multiple nested eggs. + """ + if importer.archive.endswith('.whl'): + # wheels are not supported with this finder + # they don't have PKG-INFO metadata, and won't ever contain eggs + return + metadata = EggMetadata(importer) + if metadata.has_metadata('PKG-INFO'): + yield Distribution.from_filename(path_item, metadata=metadata) + if only: + # don't yield nested distros + return + for subitem in metadata.resource_listdir(''): + if _is_egg_path(subitem): + subpath = os.path.join(path_item, subitem) + dists = find_eggs_in_zip(zipimport.zipimporter(subpath), subpath) + yield from dists + elif subitem.lower().endswith(('.dist-info', '.egg-info')): + subpath = os.path.join(path_item, subitem) + submeta = EggMetadata(zipimport.zipimporter(subpath)) + submeta.egg_info = subpath + yield Distribution.from_location(path_item, subitem, submeta) + + +register_finder(zipimport.zipimporter, find_eggs_in_zip) + + +def find_nothing( + importer: object | None, path_item: str | None, only: bool | None = False +): + return () + + +register_finder(object, find_nothing) + + +def find_on_path(importer: object | None, path_item, only=False): + """Yield distributions accessible on a sys.path directory""" + path_item = _normalize_cached(path_item) + + if _is_unpacked_egg(path_item): + yield Distribution.from_filename( + path_item, + metadata=PathMetadata(path_item, os.path.join(path_item, 'EGG-INFO')), + ) + return + + entries = (os.path.join(path_item, child) for child in safe_listdir(path_item)) + + # scan for .egg and .egg-info in directory + for entry in sorted(entries): + fullpath = os.path.join(path_item, entry) + factory = dist_factory(path_item, entry, only) + yield from factory(fullpath) + + +def dist_factory(path_item, entry, only): + """Return a dist_factory for the given entry.""" + lower = entry.lower() + is_egg_info = lower.endswith('.egg-info') + is_dist_info = lower.endswith('.dist-info') and os.path.isdir( + os.path.join(path_item, entry) + ) + is_meta = is_egg_info or is_dist_info + return ( + distributions_from_metadata + if is_meta + else find_distributions + if not only and _is_egg_path(entry) + else resolve_egg_link + if not only and lower.endswith('.egg-link') + else NoDists() + ) + + +class NoDists: + """ + >>> bool(NoDists()) + False + + >>> list(NoDists()('anything')) + [] + """ + + def __bool__(self) -> Literal[False]: + return False + + def __call__(self, fullpath: object): + return iter(()) + + +def safe_listdir(path: StrOrBytesPath): + """ + Attempt to list contents of path, but suppress some exceptions. + """ + try: + return os.listdir(path) + except (PermissionError, NotADirectoryError): + pass + except OSError as e: + # Ignore the directory if does not exist, not a directory or + # permission denied + if e.errno not in (errno.ENOTDIR, errno.EACCES, errno.ENOENT): + raise + return () + + +def distributions_from_metadata(path: str): + root = os.path.dirname(path) + if os.path.isdir(path): + if len(os.listdir(path)) == 0: + # empty metadata dir; skip + return + metadata: _MetadataType = PathMetadata(root, path) + else: + metadata = FileMetadata(path) + entry = os.path.basename(path) + yield Distribution.from_location( + root, + entry, + metadata, + precedence=DEVELOP_DIST, + ) + + +def non_empty_lines(path): + """ + Yield non-empty lines from file at path + """ + for line in _read_utf8_with_fallback(path).splitlines(): + line = line.strip() + if line: + yield line + + +def resolve_egg_link(path): + """ + Given a path to an .egg-link, resolve distributions + present in the referenced path. + """ + referenced_paths = non_empty_lines(path) + resolved_paths = ( + os.path.join(os.path.dirname(path), ref) for ref in referenced_paths + ) + dist_groups = map(find_distributions, resolved_paths) + return next(dist_groups, ()) + + +if hasattr(pkgutil, 'ImpImporter'): + register_finder(pkgutil.ImpImporter, find_on_path) + +register_finder(importlib.machinery.FileFinder, find_on_path) + +_namespace_handlers: dict[type, _NSHandlerType[Any]] = _declare_state( + 'dict', '_namespace_handlers', {} +) +_namespace_packages: dict[str | None, list[str]] = _declare_state( + 'dict', '_namespace_packages', {} +) + + +def register_namespace_handler( + importer_type: type[_T], namespace_handler: _NSHandlerType[_T] +) -> None: + """Register `namespace_handler` to declare namespace packages + + `importer_type` is the type or class of a PEP 302 "Importer" (sys.path item + handler), and `namespace_handler` is a callable like this:: + + def namespace_handler(importer, path_entry, moduleName, module): + # return a path_entry to use for child packages + + Namespace handlers are only called if the importer object has already + agreed that it can handle the relevant path item, and they should only + return a subpath if the module __path__ does not already contain an + equivalent subpath. For an example namespace handler, see + ``pkg_resources.file_ns_handler``. + """ + _namespace_handlers[importer_type] = namespace_handler + + +def _handle_ns(packageName, path_item): + """Ensure that named package includes a subpath of path_item (if needed)""" + + importer = get_importer(path_item) + if importer is None: + return None + + # use find_spec (PEP 451) and fall-back to find_module (PEP 302) + try: + spec = importer.find_spec(packageName) + except AttributeError: + # capture warnings due to #1111 + with warnings.catch_warnings(): + warnings.simplefilter("ignore") + loader = importer.find_module(packageName) + else: + loader = spec.loader if spec else None + + if loader is None: + return None + module = sys.modules.get(packageName) + if module is None: + module = sys.modules[packageName] = types.ModuleType(packageName) + module.__path__ = [] + _set_parent_ns(packageName) + elif not hasattr(module, '__path__'): + raise TypeError("Not a package:", packageName) + handler = _find_adapter(_namespace_handlers, importer) + subpath = handler(importer, path_item, packageName, module) + if subpath is not None: + path = module.__path__ + path.append(subpath) + importlib.import_module(packageName) + _rebuild_mod_path(path, packageName, module) + return subpath + + +def _rebuild_mod_path(orig_path, package_name, module: types.ModuleType) -> None: + """ + Rebuild module.__path__ ensuring that all entries are ordered + corresponding to their sys.path order + """ + sys_path = [_normalize_cached(p) for p in sys.path] + + def safe_sys_path_index(entry): + """ + Workaround for #520 and #513. + """ + try: + return sys_path.index(entry) + except ValueError: + return float('inf') + + def position_in_sys_path(path): + """ + Return the ordinal of the path based on its position in sys.path + """ + path_parts = path.split(os.sep) + module_parts = package_name.count('.') + 1 + parts = path_parts[:-module_parts] + return safe_sys_path_index(_normalize_cached(os.sep.join(parts))) + + new_path = sorted(orig_path, key=position_in_sys_path) + new_path = [_normalize_cached(p) for p in new_path] + + if isinstance(module.__path__, list): + module.__path__[:] = new_path + else: + module.__path__ = new_path + + +def declare_namespace(packageName: str) -> None: + """Declare that package 'packageName' is a namespace package""" + + msg = ( + f"Deprecated call to `pkg_resources.declare_namespace({packageName!r})`.\n" + "Implementing implicit namespace packages (as specified in PEP 420) " + "is preferred to `pkg_resources.declare_namespace`. " + "See https://setuptools.pypa.io/en/latest/references/" + "keywords.html#keyword-namespace-packages" + ) + warnings.warn(msg, DeprecationWarning, stacklevel=2) + + _imp.acquire_lock() + try: + if packageName in _namespace_packages: + return + + path: MutableSequence[str] = sys.path + parent, _, _ = packageName.rpartition('.') + + if parent: + declare_namespace(parent) + if parent not in _namespace_packages: + __import__(parent) + try: + path = sys.modules[parent].__path__ + except AttributeError as e: + raise TypeError("Not a package:", parent) from e + + # Track what packages are namespaces, so when new path items are added, + # they can be updated + _namespace_packages.setdefault(parent or None, []).append(packageName) + _namespace_packages.setdefault(packageName, []) + + for path_item in path: + # Ensure all the parent's path items are reflected in the child, + # if they apply + _handle_ns(packageName, path_item) + + finally: + _imp.release_lock() + + +def fixup_namespace_packages(path_item: str, parent: str | None = None) -> None: + """Ensure that previously-declared namespace packages include path_item""" + _imp.acquire_lock() + try: + for package in _namespace_packages.get(parent, ()): + subpath = _handle_ns(package, path_item) + if subpath: + fixup_namespace_packages(subpath, package) + finally: + _imp.release_lock() + + +def file_ns_handler( + importer: object, + path_item: StrPath, + packageName: str, + module: types.ModuleType, +): + """Compute an ns-package subpath for a filesystem or zipfile importer""" + + subpath = os.path.join(path_item, packageName.split('.')[-1]) + normalized = _normalize_cached(subpath) + for item in module.__path__: + if _normalize_cached(item) == normalized: + break + else: + # Only return the path if it's not already there + return subpath + + +if hasattr(pkgutil, 'ImpImporter'): + register_namespace_handler(pkgutil.ImpImporter, file_ns_handler) + +register_namespace_handler(zipimport.zipimporter, file_ns_handler) +register_namespace_handler(importlib.machinery.FileFinder, file_ns_handler) + + +def null_ns_handler( + importer: object, + path_item: str | None, + packageName: str | None, + module: _ModuleLike | None, +) -> None: + return None + + +register_namespace_handler(object, null_ns_handler) + + +@overload +def normalize_path(filename: StrPath) -> str: ... +@overload +def normalize_path(filename: BytesPath) -> bytes: ... +def normalize_path(filename: StrOrBytesPath) -> str | bytes: + """Normalize a file/dir name for comparison purposes""" + return os.path.normcase(os.path.realpath(os.path.normpath(_cygwin_patch(filename)))) + + +def _cygwin_patch(filename: StrOrBytesPath): # pragma: nocover + """ + Contrary to POSIX 2008, on Cygwin, getcwd (3) contains + symlink components. Using + os.path.abspath() works around this limitation. A fix in os.getcwd() + would probably better, in Cygwin even more so, except + that this seems to be by design... + """ + return os.path.abspath(filename) if sys.platform == 'cygwin' else filename + + +if TYPE_CHECKING: + # https://github.com/python/mypy/issues/16261 + # https://github.com/python/typeshed/issues/6347 + @overload + def _normalize_cached(filename: StrPath) -> str: ... + @overload + def _normalize_cached(filename: BytesPath) -> bytes: ... + def _normalize_cached(filename: StrOrBytesPath) -> str | bytes: ... + +else: + + @functools.cache + def _normalize_cached(filename): + return normalize_path(filename) + + +def _is_egg_path(path): + """ + Determine if given path appears to be an egg. + """ + return _is_zip_egg(path) or _is_unpacked_egg(path) + + +def _is_zip_egg(path): + return ( + path.lower().endswith('.egg') + and os.path.isfile(path) + and zipfile.is_zipfile(path) + ) + + +def _is_unpacked_egg(path): + """ + Determine if given path appears to be an unpacked egg. + """ + return path.lower().endswith('.egg') and os.path.isfile( + os.path.join(path, 'EGG-INFO', 'PKG-INFO') + ) + + +def _set_parent_ns(packageName) -> None: + parts = packageName.split('.') + name = parts.pop() + if parts: + parent = '.'.join(parts) + setattr(sys.modules[parent], name, sys.modules[packageName]) + + +MODULE = re.compile(r"\w+(\.\w+)*$").match +EGG_NAME = re.compile( + r""" + (?P[^-]+) ( + -(?P[^-]+) ( + -py(?P[^-]+) ( + -(?P.+) + )? + )? + )? + """, + re.VERBOSE | re.IGNORECASE, +).match + + +class EntryPoint: + """Object representing an advertised importable object""" + + def __init__( + self, + name: str, + module_name: str, + attrs: Iterable[str] = (), + extras: Iterable[str] = (), + dist: Distribution | None = None, + ) -> None: + if not MODULE(module_name): + raise ValueError("Invalid module name", module_name) + self.name = name + self.module_name = module_name + self.attrs = tuple(attrs) + self.extras = tuple(extras) + self.dist = dist + + def __str__(self) -> str: + s = f"{self.name} = {self.module_name}" + if self.attrs: + s += ':' + '.'.join(self.attrs) + if self.extras: + extras = ','.join(self.extras) + s += f' [{extras}]' + return s + + def __repr__(self) -> str: + return f"EntryPoint.parse({str(self)!r})" + + @overload + def load( + self, + require: Literal[True] = True, + env: Environment | None = None, + installer: _InstallerType | None = None, + ) -> _ResolvedEntryPoint: ... + @overload + def load( + self, + require: Literal[False], + *args: Any, + **kwargs: Any, + ) -> _ResolvedEntryPoint: ... + def load( + self, + require: bool = True, + *args: Environment | _InstallerType | None, + **kwargs: Environment | _InstallerType | None, + ) -> _ResolvedEntryPoint: + """ + Require packages for this EntryPoint, then resolve it. + """ + if not require or args or kwargs: + warnings.warn( + "Parameters to load are deprecated. Call .resolve and " + ".require separately.", + PkgResourcesDeprecationWarning, + stacklevel=2, + ) + if require: + # We could pass `env` and `installer` directly, + # but keeping `*args` and `**kwargs` for backwards compatibility + self.require(*args, **kwargs) # type: ignore[arg-type] + return self.resolve() + + def resolve(self) -> _ResolvedEntryPoint: + """ + Resolve the entry point from its module and attrs. + """ + module = __import__(self.module_name, fromlist=['__name__'], level=0) + try: + return functools.reduce(getattr, self.attrs, module) + except AttributeError as exc: + raise ImportError(str(exc)) from exc + + def require( + self, + env: Environment | None = None, + installer: _InstallerType | None = None, + ) -> None: + if not self.dist: + error_cls = UnknownExtra if self.extras else AttributeError + raise error_cls("Can't require() without a distribution", self) + + # Get the requirements for this entry point with all its extras and + # then resolve them. We have to pass `extras` along when resolving so + # that the working set knows what extras we want. Otherwise, for + # dist-info distributions, the working set will assume that the + # requirements for that extra are purely optional and skip over them. + reqs = self.dist.requires(self.extras) + items = working_set.resolve(reqs, env, installer, extras=self.extras) + list(map(working_set.add, items)) + + pattern = re.compile( + r'\s*' + r'(?P.+?)\s*' + r'=\s*' + r'(?P[\w.]+)\s*' + r'(:\s*(?P[\w.]+))?\s*' + r'(?P\[.*\])?\s*$' + ) + + @classmethod + def parse(cls, src: str, dist: Distribution | None = None) -> Self: + """Parse a single entry point from string `src` + + Entry point syntax follows the form:: + + name = some.module:some.attr [extra1, extra2] + + The entry name and module name are required, but the ``:attrs`` and + ``[extras]`` parts are optional + """ + m = cls.pattern.match(src) + if not m: + msg = "EntryPoint must be in 'name=module:attrs [extras]' format" + raise ValueError(msg, src) + res = m.groupdict() + extras = cls._parse_extras(res['extras']) + attrs = res['attr'].split('.') if res['attr'] else () + return cls(res['name'], res['module'], attrs, extras, dist) + + @classmethod + def _parse_extras(cls, extras_spec): + if not extras_spec: + return () + req = Requirement.parse('x' + extras_spec) + if req.specs: + raise ValueError + return req.extras + + @classmethod + def parse_group( + cls, + group: str, + lines: _NestedStr, + dist: Distribution | None = None, + ) -> dict[str, Self]: + """Parse an entry point group""" + if not MODULE(group): + raise ValueError("Invalid group name", group) + this: dict[str, Self] = {} + for line in yield_lines(lines): + ep = cls.parse(line, dist) + if ep.name in this: + raise ValueError("Duplicate entry point", group, ep.name) + this[ep.name] = ep + return this + + @classmethod + def parse_map( + cls, + data: str | Iterable[str] | dict[str, str | Iterable[str]], + dist: Distribution | None = None, + ) -> dict[str, dict[str, Self]]: + """Parse a map of entry point groups""" + _data: Iterable[tuple[str | None, str | Iterable[str]]] + if isinstance(data, dict): + _data = data.items() + else: + _data = split_sections(data) + maps: dict[str, dict[str, Self]] = {} + for group, lines in _data: + if group is None: + if not lines: + continue + raise ValueError("Entry points must be listed in groups") + group = group.strip() + if group in maps: + raise ValueError("Duplicate group name", group) + maps[group] = cls.parse_group(group, lines, dist) + return maps + + +def _version_from_file(lines): + """ + Given an iterable of lines from a Metadata file, return + the value of the Version field, if present, or None otherwise. + """ + + def is_version_line(line): + return line.lower().startswith('version:') + + version_lines = filter(is_version_line, lines) + line = next(iter(version_lines), '') + _, _, value = line.partition(':') + return safe_version(value.strip()) or None + + +class Distribution: + """Wrap an actual or potential sys.path entry w/metadata""" + + PKG_INFO = 'PKG-INFO' + + def __init__( + self, + location: str | None = None, + metadata: _MetadataType = None, + project_name: str | None = None, + version: str | None = None, + py_version: str | None = PY_MAJOR, + platform: str | None = None, + precedence: int = EGG_DIST, + ) -> None: + self.project_name = safe_name(project_name or 'Unknown') + if version is not None: + self._version = safe_version(version) + self.py_version = py_version + self.platform = platform + self.location = location + self.precedence = precedence + self._provider = metadata or empty_provider + + @classmethod + def from_location( + cls, + location: str, + basename: StrPath, + metadata: _MetadataType = None, + **kw: int, # We could set `precedence` explicitly, but keeping this as `**kw` for full backwards and subclassing compatibility + ) -> Distribution: + project_name, version, py_version, platform = [None] * 4 + basename, ext = os.path.splitext(basename) + if ext.lower() in _distributionImpl: + cls = _distributionImpl[ext.lower()] + + match = EGG_NAME(basename) + if match: + project_name, version, py_version, platform = match.group( + 'name', 'ver', 'pyver', 'plat' + ) + return cls( + location, + metadata, + project_name=project_name, + version=version, + py_version=py_version, + platform=platform, + **kw, + )._reload_version() + + def _reload_version(self): + return self + + @property + def hashcmp(self): + return ( + self._forgiving_parsed_version, + self.precedence, + self.key, + self.location, + self.py_version or '', + self.platform or '', + ) + + def __hash__(self) -> int: + return hash(self.hashcmp) + + def __lt__(self, other: Distribution) -> bool: + return self.hashcmp < other.hashcmp + + def __le__(self, other: Distribution) -> bool: + return self.hashcmp <= other.hashcmp + + def __gt__(self, other: Distribution) -> bool: + return self.hashcmp > other.hashcmp + + def __ge__(self, other: Distribution) -> bool: + return self.hashcmp >= other.hashcmp + + def __eq__(self, other: object) -> bool: + if not isinstance(other, self.__class__): + # It's not a Distribution, so they are not equal + return False + return self.hashcmp == other.hashcmp + + def __ne__(self, other: object) -> bool: + return not self == other + + # These properties have to be lazy so that we don't have to load any + # metadata until/unless it's actually needed. (i.e., some distributions + # may not know their name or version without loading PKG-INFO) + + @property + def key(self): + try: + return self._key + except AttributeError: + self._key = key = self.project_name.lower() + return key + + @property + def parsed_version(self): + if not hasattr(self, "_parsed_version"): + try: + self._parsed_version = parse_version(self.version) + except packaging.version.InvalidVersion as ex: + info = f"(package: {self.project_name})" + if hasattr(ex, "add_note"): + ex.add_note(info) # PEP 678 + raise + raise packaging.version.InvalidVersion(f"{str(ex)} {info}") from None + + return self._parsed_version + + @property + def _forgiving_parsed_version(self): + try: + return self.parsed_version + except packaging.version.InvalidVersion as ex: + self._parsed_version = parse_version(_forgiving_version(self.version)) + + notes = "\n".join(getattr(ex, "__notes__", [])) # PEP 678 + msg = f"""!!\n\n + ************************************************************************* + {str(ex)}\n{notes} + + This is a long overdue deprecation. + For the time being, `pkg_resources` will use `{self._parsed_version}` + as a replacement to avoid breaking existing environments, + but no future compatibility is guaranteed. + + If you maintain package {self.project_name} you should implement + the relevant changes to adequate the project to PEP 440 immediately. + ************************************************************************* + \n\n!! + """ + warnings.warn(msg, DeprecationWarning) + + return self._parsed_version + + @property + def version(self): + try: + return self._version + except AttributeError as e: + version = self._get_version() + if version is None: + path = self._get_metadata_path_for_display(self.PKG_INFO) + msg = f"Missing 'Version:' header and/or {self.PKG_INFO} file at path: {path}" + raise ValueError(msg, self) from e + + return version + + @property + def _dep_map(self): + """ + A map of extra to its list of (direct) requirements + for this distribution, including the null extra. + """ + try: + return self.__dep_map + except AttributeError: + self.__dep_map = self._filter_extras(self._build_dep_map()) + return self.__dep_map + + @staticmethod + def _filter_extras( + dm: dict[str | None, list[Requirement]], + ) -> dict[str | None, list[Requirement]]: + """ + Given a mapping of extras to dependencies, strip off + environment markers and filter out any dependencies + not matching the markers. + """ + for extra in list(filter(None, dm)): + new_extra: str | None = extra + reqs = dm.pop(extra) + new_extra, _, marker = extra.partition(':') + fails_marker = marker and ( + invalid_marker(marker) or not evaluate_marker(marker) + ) + if fails_marker: + reqs = [] + new_extra = safe_extra(new_extra) or None + + dm.setdefault(new_extra, []).extend(reqs) + return dm + + def _build_dep_map(self): + dm = {} + for name in 'requires.txt', 'depends.txt': + for extra, reqs in split_sections(self._get_metadata(name)): + dm.setdefault(extra, []).extend(parse_requirements(reqs)) + return dm + + def requires(self, extras: Iterable[str] = ()) -> list[Requirement]: + """List of Requirements needed for this distro if `extras` are used""" + dm = self._dep_map + deps: list[Requirement] = [] + deps.extend(dm.get(None, ())) + for ext in extras: + try: + deps.extend(dm[safe_extra(ext)]) + except KeyError as e: + raise UnknownExtra(f"{self} has no such extra feature {ext!r}") from e + return deps + + def _get_metadata_path_for_display(self, name): + """ + Return the path to the given metadata file, if available. + """ + try: + # We need to access _get_metadata_path() on the provider object + # directly rather than through this class's __getattr__() + # since _get_metadata_path() is marked private. + path = self._provider._get_metadata_path(name) + + # Handle exceptions e.g. in case the distribution's metadata + # provider doesn't support _get_metadata_path(). + except Exception: + return '[could not detect]' + + return path + + def _get_metadata(self, name): + if self.has_metadata(name): + yield from self.get_metadata_lines(name) + + def _get_version(self): + lines = self._get_metadata(self.PKG_INFO) + return _version_from_file(lines) + + def activate(self, path: list[str] | None = None, replace: bool = False) -> None: + """Ensure distribution is importable on `path` (default=sys.path)""" + if path is None: + path = sys.path + self.insert_on(path, replace=replace) + if path is sys.path and self.location is not None: + fixup_namespace_packages(self.location) + for pkg in self._get_metadata('namespace_packages.txt'): + if pkg in sys.modules: + declare_namespace(pkg) + + def egg_name(self): + """Return what this distribution's standard .egg filename should be""" + filename = f"{to_filename(self.project_name)}-{to_filename(self.version)}-py{self.py_version or PY_MAJOR}" + + if self.platform: + filename += '-' + self.platform + return filename + + def __repr__(self) -> str: + if self.location: + return f"{self} ({self.location})" + else: + return str(self) + + def __str__(self) -> str: + try: + version = getattr(self, 'version', None) + except ValueError: + version = None + version = version or "[unknown version]" + return f"{self.project_name} {version}" + + def __getattr__(self, attr: str): + """Delegate all unrecognized public attributes to .metadata provider""" + if attr.startswith('_'): + raise AttributeError(attr) + return getattr(self._provider, attr) + + def __dir__(self): + return list( + set(super().__dir__()) + | set(attr for attr in self._provider.__dir__() if not attr.startswith('_')) + ) + + @classmethod + def from_filename( + cls, + filename: StrPath, + metadata: _MetadataType = None, + **kw: int, # We could set `precedence` explicitly, but keeping this as `**kw` for full backwards and subclassing compatibility + ) -> Distribution: + return cls.from_location( + _normalize_cached(filename), os.path.basename(filename), metadata, **kw + ) + + def as_requirement(self): + """Return a ``Requirement`` that matches this distribution exactly""" + if isinstance(self.parsed_version, packaging.version.Version): + spec = f"{self.project_name}=={self.parsed_version}" + else: + spec = f"{self.project_name}==={self.parsed_version}" + + return Requirement.parse(spec) + + def load_entry_point(self, group: str, name: str) -> _ResolvedEntryPoint: + """Return the `name` entry point of `group` or raise ImportError""" + ep = self.get_entry_info(group, name) + if ep is None: + raise ImportError(f"Entry point {(group, name)!r} not found") + return ep.load() + + @overload + def get_entry_map(self, group: None = None) -> dict[str, dict[str, EntryPoint]]: ... + @overload + def get_entry_map(self, group: str) -> dict[str, EntryPoint]: ... + def get_entry_map(self, group: str | None = None): + """Return the entry point map for `group`, or the full entry map""" + if not hasattr(self, "_ep_map"): + self._ep_map = EntryPoint.parse_map( + self._get_metadata('entry_points.txt'), self + ) + if group is not None: + return self._ep_map.get(group, {}) + return self._ep_map + + def get_entry_info(self, group: str, name: str) -> EntryPoint | None: + """Return the EntryPoint object for `group`+`name`, or ``None``""" + return self.get_entry_map(group).get(name) + + # FIXME: 'Distribution.insert_on' is too complex (13) + def insert_on( # noqa: C901 + self, + path: list[str], + loc=None, + replace: bool = False, + ) -> None: + """Ensure self.location is on path + + If replace=False (default): + - If location is already in path anywhere, do nothing. + - Else: + - If it's an egg and its parent directory is on path, + insert just ahead of the parent. + - Else: add to the end of path. + If replace=True: + - If location is already on path anywhere (not eggs) + or higher priority than its parent (eggs) + do nothing. + - Else: + - If it's an egg and its parent directory is on path, + insert just ahead of the parent, + removing any lower-priority entries. + - Else: add it to the front of path. + """ + + loc = loc or self.location + if not loc: + return + + nloc = _normalize_cached(loc) + bdir = os.path.dirname(nloc) + npath = [(p and _normalize_cached(p) or p) for p in path] + + for p, item in enumerate(npath): + if item == nloc: + if replace: + break + else: + # don't modify path (even removing duplicates) if + # found and not replace + return + elif item == bdir and self.precedence == EGG_DIST: + # if it's an .egg, give it precedence over its directory + # UNLESS it's already been added to sys.path and replace=False + if (not replace) and nloc in npath[p:]: + return + if path is sys.path: + self.check_version_conflict() + path.insert(p, loc) + npath.insert(p, nloc) + break + else: + if path is sys.path: + self.check_version_conflict() + if replace: + path.insert(0, loc) + else: + path.append(loc) + return + + # p is the spot where we found or inserted loc; now remove duplicates + while True: + try: + np = npath.index(nloc, p + 1) + except ValueError: + break + else: + del npath[np], path[np] + # ha! + p = np + + return + + def check_version_conflict(self): + if self.key == 'setuptools': + # ignore the inevitable setuptools self-conflicts :( + return + + nsp = dict.fromkeys(self._get_metadata('namespace_packages.txt')) + loc = normalize_path(self.location) + for modname in self._get_metadata('top_level.txt'): + if ( + modname not in sys.modules + or modname in nsp + or modname in _namespace_packages + ): + continue + if modname in ('pkg_resources', 'setuptools', 'site'): + continue + fn = getattr(sys.modules[modname], '__file__', None) + if fn and ( + normalize_path(fn).startswith(loc) or fn.startswith(self.location) + ): + continue + issue_warning( + f"Module {modname} was already imported from {fn}, " + f"but {self.location} is being added to sys.path", + ) + + def has_version(self) -> bool: + try: + self.version + except ValueError: + issue_warning("Unbuilt egg for " + repr(self)) + return False + except SystemError: + # TODO: remove this except clause when python/cpython#103632 is fixed. + return False + return True + + def clone(self, **kw: str | int | IResourceProvider | None) -> Self: + """Copy this distribution, substituting in any changed keyword args""" + names = 'project_name version py_version platform location precedence' + for attr in names.split(): + kw.setdefault(attr, getattr(self, attr, None)) + kw.setdefault('metadata', self._provider) + # Unsafely unpacking. But keeping **kw for backwards and subclassing compatibility + return self.__class__(**kw) # type:ignore[arg-type] + + @property + def extras(self): + return [dep for dep in self._dep_map if dep] + + +class EggInfoDistribution(Distribution): + def _reload_version(self): + """ + Packages installed by distutils (e.g. numpy or scipy), + which uses an old safe_version, and so + their version numbers can get mangled when + converted to filenames (e.g., 1.11.0.dev0+2329eae to + 1.11.0.dev0_2329eae). These distributions will not be + parsed properly + downstream by Distribution and safe_version, so + take an extra step and try to get the version number from + the metadata file itself instead of the filename. + """ + md_version = self._get_version() + if md_version: + self._version = md_version + return self + + +class DistInfoDistribution(Distribution): + """ + Wrap an actual or potential sys.path entry + w/metadata, .dist-info style. + """ + + PKG_INFO = 'METADATA' + EQEQ = re.compile(r"([\(,])\s*(\d.*?)\s*([,\)])") + + @property + def _parsed_pkg_info(self): + """Parse and cache metadata""" + try: + return self._pkg_info + except AttributeError: + metadata = self.get_metadata(self.PKG_INFO) + self._pkg_info = email.parser.Parser().parsestr(metadata) + return self._pkg_info + + @property + def _dep_map(self): + try: + return self.__dep_map + except AttributeError: + self.__dep_map = self._compute_dependencies() + return self.__dep_map + + def _compute_dependencies(self) -> dict[str | None, list[Requirement]]: + """Recompute this distribution's dependencies.""" + self.__dep_map: dict[str | None, list[Requirement]] = {None: []} + + reqs: list[Requirement] = [] + # Including any condition expressions + for req in self._parsed_pkg_info.get_all('Requires-Dist') or []: + reqs.extend(parse_requirements(req)) + + def reqs_for_extra(extra): + for req in reqs: + if not req.marker or req.marker.evaluate({'extra': extra}): + yield req + + common = types.MappingProxyType(dict.fromkeys(reqs_for_extra(None))) + self.__dep_map[None].extend(common) + + for extra in self._parsed_pkg_info.get_all('Provides-Extra') or []: + s_extra = safe_extra(extra.strip()) + self.__dep_map[s_extra] = [ + r for r in reqs_for_extra(extra) if r not in common + ] + + return self.__dep_map + + +_distributionImpl = { + '.egg': Distribution, + '.egg-info': EggInfoDistribution, + '.dist-info': DistInfoDistribution, +} + + +def issue_warning(*args, **kw): + level = 1 + g = globals() + try: + # find the first stack frame that is *not* code in + # the pkg_resources module, to use for the warning + while sys._getframe(level).f_globals is g: + level += 1 + except ValueError: + pass + warnings.warn(stacklevel=level + 1, *args, **kw) + + +def parse_requirements(strs: _NestedStr) -> map[Requirement]: + """ + Yield ``Requirement`` objects for each specification in `strs`. + + `strs` must be a string, or a (possibly-nested) iterable thereof. + """ + return map(Requirement, join_continuation(map(drop_comment, yield_lines(strs)))) + + +class RequirementParseError(packaging.requirements.InvalidRequirement): + "Compatibility wrapper for InvalidRequirement" + + +class Requirement(packaging.requirements.Requirement): + # prefer variable length tuple to set (as found in + # packaging.requirements.Requirement) + extras: tuple[str, ...] # type: ignore[assignment] + + def __init__(self, requirement_string: str) -> None: + """DO NOT CALL THIS UNDOCUMENTED METHOD; use Requirement.parse()!""" + super().__init__(requirement_string) + self.unsafe_name = self.name + project_name = safe_name(self.name) + self.project_name, self.key = project_name, project_name.lower() + self.specs = [(spec.operator, spec.version) for spec in self.specifier] + self.extras = tuple(map(safe_extra, self.extras)) + self.hashCmp = ( + self.key, + self.url, + self.specifier, + frozenset(self.extras), + str(self.marker) if self.marker else None, + ) + self.__hash = hash(self.hashCmp) + + def __eq__(self, other: object) -> bool: + return isinstance(other, Requirement) and self.hashCmp == other.hashCmp + + def __ne__(self, other: object) -> bool: + return not self == other + + def __contains__( + self, item: Distribution | packaging.specifiers.UnparsedVersion + ) -> bool: + if isinstance(item, Distribution): + if item.key != self.key: + return False + + version = item.version + else: + version = item + + # Allow prereleases always in order to match the previous behavior of + # this method. In the future this should be smarter and follow PEP 440 + # more accurately. + return self.specifier.contains( + version, + prereleases=True, + ) + + def __hash__(self) -> int: + return self.__hash + + def __repr__(self) -> str: + return f"Requirement.parse({str(self)!r})" + + @staticmethod + def parse(s: str | Iterable[str]) -> Requirement: + (req,) = parse_requirements(s) + return req + + +def _always_object(classes): + """ + Ensure object appears in the mro even + for old-style classes. + """ + if object not in classes: + return classes + (object,) + return classes + + +def _find_adapter(registry: Mapping[type, _AdapterT], ob: object) -> _AdapterT: + """Return an adapter factory for `ob` from `registry`""" + types = _always_object(inspect.getmro(getattr(ob, '__class__', type(ob)))) + for t in types: + if t in registry: + return registry[t] + # _find_adapter would previously return None, and immediately be called. + # So we're raising a TypeError to keep backward compatibility if anyone depended on that behaviour. + raise TypeError(f"Could not find adapter for {registry} and {ob}") + + +def ensure_directory(path: StrOrBytesPath) -> None: + """Ensure that the parent directory of `path` exists""" + dirname = os.path.dirname(path) + os.makedirs(dirname, exist_ok=True) + + +def _bypass_ensure_directory(path) -> None: + """Sandbox-bypassing version of ensure_directory()""" + if not WRITE_SUPPORT: + raise OSError('"os.mkdir" not supported on this platform.') + dirname, filename = split(path) + if dirname and filename and not isdir(dirname): + _bypass_ensure_directory(dirname) + try: + mkdir(dirname, 0o755) + except FileExistsError: + pass + + +def split_sections(s: _NestedStr) -> Iterator[tuple[str | None, list[str]]]: + """Split a string or iterable thereof into (section, content) pairs + + Each ``section`` is a stripped version of the section header ("[section]") + and each ``content`` is a list of stripped lines excluding blank lines and + comment-only lines. If there are any such lines before the first section + header, they're returned in a first ``section`` of ``None``. + """ + section = None + content: list[str] = [] + for line in yield_lines(s): + if line.startswith("["): + if line.endswith("]"): + if section or content: + yield section, content + section = line[1:-1].strip() + content = [] + else: + raise ValueError("Invalid section heading", line) + else: + content.append(line) + + # wrap up last segment + yield section, content + + +def _mkstemp(*args, **kw): + old_open = os.open + try: + # temporarily bypass sandboxing + os.open = os_open + return tempfile.mkstemp(*args, **kw) + finally: + # and then put it back + os.open = old_open + + +# Silence the PEP440Warning by default, so that end users don't get hit by it +# randomly just because they use pkg_resources. We want to append the rule +# because we want earlier uses of filterwarnings to take precedence over this +# one. +warnings.filterwarnings("ignore", category=PEP440Warning, append=True) + + +class PkgResourcesDeprecationWarning(Warning): + """ + Base class for warning about deprecations in ``pkg_resources`` + + This class is not derived from ``DeprecationWarning``, and as such is + visible by default. + """ + + +# Ported from ``setuptools`` to avoid introducing an import inter-dependency: +_LOCALE_ENCODING = "locale" if sys.version_info >= (3, 10) else None + + +# This must go before calls to `_call_aside`. See https://github.com/pypa/setuptools/pull/4422 +def _read_utf8_with_fallback(file: str, fallback_encoding=_LOCALE_ENCODING) -> str: + """See setuptools.unicode_utils._read_utf8_with_fallback""" + try: + with open(file, "r", encoding="utf-8") as f: + return f.read() + except UnicodeDecodeError: # pragma: no cover + msg = f"""\ + ******************************************************************************** + `encoding="utf-8"` fails with {file!r}, trying `encoding={fallback_encoding!r}`. + + This fallback behaviour is considered **deprecated** and future versions of + `setuptools/pkg_resources` may not implement it. + + Please encode {file!r} with "utf-8" to ensure future builds will succeed. + + If this file was produced by `setuptools` itself, cleaning up the cached files + and re-building/re-installing the package with a newer version of `setuptools` + (e.g. by updating `build-system.requires` in its `pyproject.toml`) + might solve the problem. + ******************************************************************************** + """ + # TODO: Add a deadline? + # See comment in setuptools.unicode_utils._Utf8EncodingNeeded + warnings.warn(msg, PkgResourcesDeprecationWarning, stacklevel=2) + with open(file, "r", encoding=fallback_encoding) as f: + return f.read() + + +# from jaraco.functools 1.3 +def _call_aside(f, *args, **kwargs): + f(*args, **kwargs) + return f + + +@_call_aside +def _initialize(g=globals()) -> None: + "Set up global resource manager (deliberately not state-saved)" + manager = ResourceManager() + g['_manager'] = manager + g.update( + (name, getattr(manager, name)) + for name in dir(manager) + if not name.startswith('_') + ) + + +@_call_aside +def _initialize_master_working_set() -> None: + """ + Prepare the master working set and make the ``require()`` + API available. + + This function has explicit effects on the global state + of pkg_resources. It is intended to be invoked once at + the initialization of this module. + + Invocation by other packages is unsupported and done + at their own risk. + """ + working_set = _declare_state('object', 'working_set', WorkingSet._build_master()) + + require = working_set.require + iter_entry_points = working_set.iter_entry_points + add_activation_listener = working_set.subscribe + run_script = working_set.run_script + # backward compatibility + run_main = run_script + # Activate all distributions already on sys.path with replace=False and + # ensure that all distributions added to the working set in the future + # (e.g. by calling ``require()``) will get activated as well, + # with higher priority (replace=True). + tuple(dist.activate(replace=False) for dist in working_set) + add_activation_listener( + lambda dist: dist.activate(replace=True), + existing=False, + ) + working_set.entries = [] + # match order + list(map(working_set.add_entry, sys.path)) + globals().update(locals()) + + +if TYPE_CHECKING: + # All of these are set by the @_call_aside methods above + __resource_manager = ResourceManager() # Won't exist at runtime + resource_exists = __resource_manager.resource_exists + resource_isdir = __resource_manager.resource_isdir + resource_filename = __resource_manager.resource_filename + resource_stream = __resource_manager.resource_stream + resource_string = __resource_manager.resource_string + resource_listdir = __resource_manager.resource_listdir + set_extraction_path = __resource_manager.set_extraction_path + cleanup_resources = __resource_manager.cleanup_resources + + working_set = WorkingSet() + require = working_set.require + iter_entry_points = working_set.iter_entry_points + add_activation_listener = working_set.subscribe + run_script = working_set.run_script + run_main = run_script diff --git a/tests/api_tests.txt b/pkg_resources/api_tests.txt similarity index 75% rename from tests/api_tests.txt rename to pkg_resources/api_tests.txt index 823d815f0c..d72b85aa37 100644 --- a/tests/api_tests.txt +++ b/pkg_resources/api_tests.txt @@ -36,10 +36,10 @@ Distributions have various introspectable attributes:: >>> dist.version '0.9' - >>> dist.py_version == sys.version[:3] + >>> dist.py_version == '{}.{}'.format(*sys.version_info) True - >>> print dist.platform + >>> print(dist.platform) None Including various computed attributes:: @@ -170,8 +170,8 @@ You can append a path entry to a working set using ``add_entry()``:: >>> ws.entries ['http://example.com/something'] >>> ws.add_entry(pkg_resources.__file__) - >>> ws.entries == ['http://example.com/something', pkg_resources.__file__] - True + >>> ws.entries + ['http://example.com/something', '...pkg_resources...'] Multiple additions result in multiple entries, even if the entry is already in the working set (because ``sys.path`` can contain the same entry more than @@ -199,7 +199,7 @@ shows up once when iterating the working set: You can ask a WorkingSet to ``find()`` a distribution matching a requirement:: >>> from pkg_resources import Requirement - >>> print ws.find(Requirement.parse("Foo==1.0")) # no match, return None + >>> print(ws.find(Requirement.parse("Foo==1.0"))) # no match, return None None >>> ws.find(Requirement.parse("Bar==0.9")) # match, return distribution @@ -208,28 +208,30 @@ You can ask a WorkingSet to ``find()`` a distribution matching a requirement:: Note that asking for a conflicting version of a distribution already in a working set triggers a ``pkg_resources.VersionConflict`` error: - >>> ws.find(Requirement.parse("Bar==1.0")) # doctest: +NORMALIZE_WHITESPACE - Traceback (most recent call last): - ... - VersionConflict: (Bar 0.9 (http://example.com/something), - Requirement.parse('Bar==1.0')) + >>> try: + ... ws.find(Requirement.parse("Bar==1.0")) + ... except pkg_resources.VersionConflict as exc: + ... print(str(exc)) + ... else: + ... raise AssertionError("VersionConflict was not raised") + (Bar 0.9 (http://example.com/something), Requirement.parse('Bar==1.0')) You can subscribe a callback function to receive notifications whenever a new distribution is added to a working set. The callback is immediately invoked once for each existing distribution in the working set, and then is called again for new distributions added thereafter:: - >>> def added(dist): print "Added", dist + >>> def added(dist): print("Added %s" % dist) >>> ws.subscribe(added) Added Bar 0.9 - >>> foo12 = Distribution(project_name="Foo", version="1.2", location="f12") + >>> foo12 = Distribution(project_name="Foo", version="1.2", location="f12") >>> ws.add(foo12) Added Foo 1.2 Note, however, that only the first distribution added for a given project name will trigger a callback, even during the initial ``subscribe()`` callback:: - >>> foo14 = Distribution(project_name="Foo", version="1.4", location="f14") + >>> foo14 = Distribution(project_name="Foo", version="1.4", location="f14") >>> ws.add(foo14) # no callback, because Foo 1.2 is already active >>> ws = WorkingSet([]) @@ -237,7 +239,7 @@ will trigger a callback, even during the initial ``subscribe()`` callback:: >>> ws.add(foo14) >>> ws.subscribe(added) Added Foo 1.2 - + And adding a callback more than once has no effect, either:: >>> ws.subscribe(added) # no callbacks @@ -260,7 +262,7 @@ Finding Plugins >>> plugins.add(foo12) >>> plugins.add(foo14) >>> plugins.add(just_a_test) - + In the simplest case, we just get the newest version of each distribution in the plugin environment:: @@ -288,8 +290,8 @@ Platform Compatibility Rules ---------------------------- On the Mac, there are potential compatibility issues for modules compiled -on newer versions of Mac OS X than what the user is running. Additionally, -Mac OS X will soon have two platforms to contend with: Intel and PowerPC. +on newer versions of macOS than what the user is running. Additionally, +macOS will soon have two platforms to contend with: Intel and PowerPC. Basic equality works as on other platforms:: @@ -318,7 +320,7 @@ number does not matter:: >>> cp("macosx-9.5-ppc", reqd) False -Backwards compatibility for packages made via earlier versions of +Backwards compatibility for packages made via earlier versions of setuptools is provided as well:: >>> cp("darwin-8.2.0-Power_Macintosh", reqd) @@ -328,3 +330,95 @@ setuptools is provided as well:: >>> cp("darwin-8.2.0-Power_Macintosh", "macosx-10.3-ppc") False + +Environment Markers +------------------- + + >>> from pkg_resources import invalid_marker as im, evaluate_marker as em + >>> import os + + >>> print(im("sys_platform")) + Expected marker operator, one of <=, <, !=, ==, >=, >, ~=, ===, in, not in + sys_platform + ^ + + >>> print(im("sys_platform==")) + Expected a marker variable or quoted string + sys_platform== + ^ + + >>> print(im("sys_platform=='win32'")) + False + + >>> print(im("sys=='x'")) + Expected a marker variable or quoted string + sys=='x' + ^ + + >>> print(im("(extra)")) + Expected marker operator, one of <=, <, !=, ==, >=, >, ~=, ===, in, not in + (extra) + ^ + + >>> print(im("(extra")) + Expected marker operator, one of <=, <, !=, ==, >=, >, ~=, ===, in, not in + (extra + ^ + + >>> print(im("os.open('foo')=='y'")) + Expected a marker variable or quoted string + os.open('foo')=='y' + ^ + + >>> print(im("'x'=='y' and os.open('foo')=='y'")) # no short-circuit! + Expected a marker variable or quoted string + 'x'=='y' and os.open('foo')=='y' + ^ + + >>> print(im("'x'=='x' or os.open('foo')=='y'")) # no short-circuit! + Expected a marker variable or quoted string + 'x'=='x' or os.open('foo')=='y' + ^ + + >>> print(im("r'x'=='x'")) + Expected a marker variable or quoted string + r'x'=='x' + ^ + + >>> print(im("'''x'''=='x'")) + Expected marker operator, one of <=, <, !=, ==, >=, >, ~=, ===, in, not in + '''x'''=='x' + ^ + + >>> print(im('"""x"""=="x"')) + Expected marker operator, one of <=, <, !=, ==, >=, >, ~=, ===, in, not in + """x"""=="x" + ^ + + >>> print(im(r"x\n=='x'")) + Expected a marker variable or quoted string + x\n=='x' + ^ + + >>> print(im("os.open=='y'")) + Expected a marker variable or quoted string + os.open=='y' + ^ + + >>> em("sys_platform=='win32'") == (sys.platform=='win32') + True + + >>> em("python_version >= '2.7'") + True + + >>> em("python_version > '2.6'") + True + + >>> im("implementation_name=='cpython'") + False + + >>> im("platform_python_implementation=='CPython'") + False + + >>> im("implementation_version=='3.5.1'") + False diff --git a/pkg_resources/py.typed b/pkg_resources/py.typed new file mode 100644 index 0000000000..e69de29bb2 diff --git a/pkg_resources/tests/__init__.py b/pkg_resources/tests/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/pkg_resources/tests/data/my-test-package-source/setup.cfg b/pkg_resources/tests/data/my-test-package-source/setup.cfg new file mode 100644 index 0000000000..e69de29bb2 diff --git a/pkg_resources/tests/data/my-test-package-source/setup.py b/pkg_resources/tests/data/my-test-package-source/setup.py new file mode 100644 index 0000000000..ce9080640c --- /dev/null +++ b/pkg_resources/tests/data/my-test-package-source/setup.py @@ -0,0 +1,7 @@ +import setuptools + +setuptools.setup( + name="my-test-package", + version="1.0", + zip_safe=True, +) diff --git a/pkg_resources/tests/data/my-test-package-zip/my-test-package.zip b/pkg_resources/tests/data/my-test-package-zip/my-test-package.zip new file mode 100644 index 0000000000..81f9a0170f Binary files /dev/null and b/pkg_resources/tests/data/my-test-package-zip/my-test-package.zip differ diff --git a/pkg_resources/tests/data/my-test-package_unpacked-egg/my_test_package-1.0-py3.7.egg/EGG-INFO/PKG-INFO b/pkg_resources/tests/data/my-test-package_unpacked-egg/my_test_package-1.0-py3.7.egg/EGG-INFO/PKG-INFO new file mode 100644 index 0000000000..7328e3f7d1 --- /dev/null +++ b/pkg_resources/tests/data/my-test-package_unpacked-egg/my_test_package-1.0-py3.7.egg/EGG-INFO/PKG-INFO @@ -0,0 +1,10 @@ +Metadata-Version: 1.0 +Name: my-test-package +Version: 1.0 +Summary: UNKNOWN +Home-page: UNKNOWN +Author: UNKNOWN +Author-email: UNKNOWN +License: UNKNOWN +Description: UNKNOWN +Platform: UNKNOWN diff --git a/pkg_resources/tests/data/my-test-package_unpacked-egg/my_test_package-1.0-py3.7.egg/EGG-INFO/SOURCES.txt b/pkg_resources/tests/data/my-test-package_unpacked-egg/my_test_package-1.0-py3.7.egg/EGG-INFO/SOURCES.txt new file mode 100644 index 0000000000..3c4ee1676d --- /dev/null +++ b/pkg_resources/tests/data/my-test-package_unpacked-egg/my_test_package-1.0-py3.7.egg/EGG-INFO/SOURCES.txt @@ -0,0 +1,7 @@ +setup.cfg +setup.py +my_test_package.egg-info/PKG-INFO +my_test_package.egg-info/SOURCES.txt +my_test_package.egg-info/dependency_links.txt +my_test_package.egg-info/top_level.txt +my_test_package.egg-info/zip-safe \ No newline at end of file diff --git a/pkg_resources/tests/data/my-test-package_unpacked-egg/my_test_package-1.0-py3.7.egg/EGG-INFO/dependency_links.txt b/pkg_resources/tests/data/my-test-package_unpacked-egg/my_test_package-1.0-py3.7.egg/EGG-INFO/dependency_links.txt new file mode 100644 index 0000000000..8b13789179 --- /dev/null +++ b/pkg_resources/tests/data/my-test-package_unpacked-egg/my_test_package-1.0-py3.7.egg/EGG-INFO/dependency_links.txt @@ -0,0 +1 @@ + diff --git a/pkg_resources/tests/data/my-test-package_unpacked-egg/my_test_package-1.0-py3.7.egg/EGG-INFO/top_level.txt b/pkg_resources/tests/data/my-test-package_unpacked-egg/my_test_package-1.0-py3.7.egg/EGG-INFO/top_level.txt new file mode 100644 index 0000000000..8b13789179 --- /dev/null +++ b/pkg_resources/tests/data/my-test-package_unpacked-egg/my_test_package-1.0-py3.7.egg/EGG-INFO/top_level.txt @@ -0,0 +1 @@ + diff --git a/pkg_resources/tests/data/my-test-package_unpacked-egg/my_test_package-1.0-py3.7.egg/EGG-INFO/zip-safe b/pkg_resources/tests/data/my-test-package_unpacked-egg/my_test_package-1.0-py3.7.egg/EGG-INFO/zip-safe new file mode 100644 index 0000000000..8b13789179 --- /dev/null +++ b/pkg_resources/tests/data/my-test-package_unpacked-egg/my_test_package-1.0-py3.7.egg/EGG-INFO/zip-safe @@ -0,0 +1 @@ + diff --git a/pkg_resources/tests/data/my-test-package_zipped-egg/my_test_package-1.0-py3.7.egg b/pkg_resources/tests/data/my-test-package_zipped-egg/my_test_package-1.0-py3.7.egg new file mode 100644 index 0000000000..5115b8957d Binary files /dev/null and b/pkg_resources/tests/data/my-test-package_zipped-egg/my_test_package-1.0-py3.7.egg differ diff --git a/pkg_resources/tests/test_find_distributions.py b/pkg_resources/tests/test_find_distributions.py new file mode 100644 index 0000000000..301b36d6cd --- /dev/null +++ b/pkg_resources/tests/test_find_distributions.py @@ -0,0 +1,56 @@ +import shutil +from pathlib import Path + +import pytest + +import pkg_resources + +TESTS_DATA_DIR = Path(__file__).parent / 'data' + + +class TestFindDistributions: + @pytest.fixture + def target_dir(self, tmpdir): + target_dir = tmpdir.mkdir('target') + # place a .egg named directory in the target that is not an egg: + target_dir.mkdir('not.an.egg') + return target_dir + + def test_non_egg_dir_named_egg(self, target_dir): + dists = pkg_resources.find_distributions(str(target_dir)) + assert not list(dists) + + def test_standalone_egg_directory(self, target_dir): + shutil.copytree( + TESTS_DATA_DIR / 'my-test-package_unpacked-egg', + target_dir, + dirs_exist_ok=True, + ) + dists = pkg_resources.find_distributions(str(target_dir)) + assert [dist.project_name for dist in dists] == ['my-test-package'] + dists = pkg_resources.find_distributions(str(target_dir), only=True) + assert not list(dists) + + def test_zipped_egg(self, target_dir): + shutil.copytree( + TESTS_DATA_DIR / 'my-test-package_zipped-egg', + target_dir, + dirs_exist_ok=True, + ) + dists = pkg_resources.find_distributions(str(target_dir)) + assert [dist.project_name for dist in dists] == ['my-test-package'] + dists = pkg_resources.find_distributions(str(target_dir), only=True) + assert not list(dists) + + def test_zipped_sdist_one_level_removed(self, target_dir): + shutil.copytree( + TESTS_DATA_DIR / 'my-test-package-zip', target_dir, dirs_exist_ok=True + ) + dists = pkg_resources.find_distributions( + str(target_dir / "my-test-package.zip") + ) + assert [dist.project_name for dist in dists] == ['my-test-package'] + dists = pkg_resources.find_distributions( + str(target_dir / "my-test-package.zip"), only=True + ) + assert not list(dists) diff --git a/pkg_resources/tests/test_integration_zope_interface.py b/pkg_resources/tests/test_integration_zope_interface.py new file mode 100644 index 0000000000..4e37c3401b --- /dev/null +++ b/pkg_resources/tests/test_integration_zope_interface.py @@ -0,0 +1,54 @@ +import platform +from inspect import cleandoc + +import jaraco.path +import pytest + +pytestmark = pytest.mark.integration + + +# For the sake of simplicity this test uses fixtures defined in +# `setuptools.test.fixtures`, +# and it also exercise conditions considered deprecated... +# So if needed this test can be deleted. +@pytest.mark.skipif( + platform.system() != "Linux", + reason="only demonstrated to fail on Linux in #4399", +) +def test_interop_pkg_resources_iter_entry_points(tmp_path, venv): + """ + Importing pkg_resources.iter_entry_points on console_scripts + seems to cause trouble with zope-interface, when deprecates installation method + is used. See #4399. + """ + project = { + "pkg": { + "foo.py": cleandoc( + """ + from pkg_resources import iter_entry_points + + def bar(): + print("Print me if you can") + """ + ), + "setup.py": cleandoc( + """ + from setuptools import setup, find_packages + + setup( + install_requires=["zope-interface==6.4.post2"], + entry_points={ + "console_scripts": [ + "foo=foo:bar", + ], + }, + ) + """ + ), + } + } + jaraco.path.build(project, prefix=tmp_path) + cmd = ["pip", "install", "-e", ".", "--no-use-pep517"] + venv.run(cmd, cwd=tmp_path / "pkg") # Needs this version of pkg_resources installed + out = venv.run(["foo"]) + assert "Print me if you can" in out diff --git a/pkg_resources/tests/test_markers.py b/pkg_resources/tests/test_markers.py new file mode 100644 index 0000000000..9306d5b348 --- /dev/null +++ b/pkg_resources/tests/test_markers.py @@ -0,0 +1,8 @@ +from unittest import mock + +from pkg_resources import evaluate_marker + + +@mock.patch('platform.python_version', return_value='2.7.10') +def test_ordering(python_version_mock): + assert evaluate_marker("python_full_version > '2.7.3'") is True diff --git a/pkg_resources/tests/test_pkg_resources.py b/pkg_resources/tests/test_pkg_resources.py new file mode 100644 index 0000000000..cfc9b16c0f --- /dev/null +++ b/pkg_resources/tests/test_pkg_resources.py @@ -0,0 +1,485 @@ +from __future__ import annotations + +import builtins +import datetime +import inspect +import os +import plistlib +import stat +import subprocess +import sys +import tempfile +import zipfile +from unittest import mock + +import pytest + +import pkg_resources +from pkg_resources import DistInfoDistribution, Distribution, EggInfoDistribution + +import distutils.command.install_egg_info +import distutils.dist + + +class EggRemover(str): + def __call__(self): + if self in sys.path: + sys.path.remove(self) + if os.path.exists(self): + os.remove(self) + + +class TestZipProvider: + finalizers: list[EggRemover] = [] + + ref_time = datetime.datetime(2013, 5, 12, 13, 25, 0) + "A reference time for a file modification" + + @classmethod + def setup_class(cls): + "create a zip egg and add it to sys.path" + egg = tempfile.NamedTemporaryFile(suffix='.egg', delete=False) + zip_egg = zipfile.ZipFile(egg, 'w') + zip_info = zipfile.ZipInfo() + zip_info.filename = 'mod.py' + zip_info.date_time = cls.ref_time.timetuple() + zip_egg.writestr(zip_info, 'x = 3\n') + zip_info = zipfile.ZipInfo() + zip_info.filename = 'data.dat' + zip_info.date_time = cls.ref_time.timetuple() + zip_egg.writestr(zip_info, 'hello, world!') + zip_info = zipfile.ZipInfo() + zip_info.filename = 'subdir/mod2.py' + zip_info.date_time = cls.ref_time.timetuple() + zip_egg.writestr(zip_info, 'x = 6\n') + zip_info = zipfile.ZipInfo() + zip_info.filename = 'subdir/data2.dat' + zip_info.date_time = cls.ref_time.timetuple() + zip_egg.writestr(zip_info, 'goodbye, world!') + zip_egg.close() + egg.close() + + sys.path.append(egg.name) + subdir = os.path.join(egg.name, 'subdir') + sys.path.append(subdir) + cls.finalizers.append(EggRemover(subdir)) + cls.finalizers.append(EggRemover(egg.name)) + + @classmethod + def teardown_class(cls): + for finalizer in cls.finalizers: + finalizer() + + def test_resource_listdir(self): + import mod # pyright: ignore[reportMissingImports] # Temporary package for test + + zp = pkg_resources.ZipProvider(mod) + + expected_root = ['data.dat', 'mod.py', 'subdir'] + assert sorted(zp.resource_listdir('')) == expected_root + + expected_subdir = ['data2.dat', 'mod2.py'] + assert sorted(zp.resource_listdir('subdir')) == expected_subdir + assert sorted(zp.resource_listdir('subdir/')) == expected_subdir + + assert zp.resource_listdir('nonexistent') == [] + assert zp.resource_listdir('nonexistent/') == [] + + import mod2 # pyright: ignore[reportMissingImports] # Temporary package for test + + zp2 = pkg_resources.ZipProvider(mod2) + + assert sorted(zp2.resource_listdir('')) == expected_subdir + + assert zp2.resource_listdir('subdir') == [] + assert zp2.resource_listdir('subdir/') == [] + + def test_resource_filename_rewrites_on_change(self): + """ + If a previous call to get_resource_filename has saved the file, but + the file has been subsequently mutated with different file of the + same size and modification time, it should not be overwritten on a + subsequent call to get_resource_filename. + """ + import mod # pyright: ignore[reportMissingImports] # Temporary package for test + + manager = pkg_resources.ResourceManager() + zp = pkg_resources.ZipProvider(mod) + filename = zp.get_resource_filename(manager, 'data.dat') + actual = datetime.datetime.fromtimestamp(os.stat(filename).st_mtime) + assert actual == self.ref_time + f = open(filename, 'w', encoding="utf-8") + f.write('hello, world?') + f.close() + ts = self.ref_time.timestamp() + os.utime(filename, (ts, ts)) + filename = zp.get_resource_filename(manager, 'data.dat') + with open(filename, encoding="utf-8") as f: + assert f.read() == 'hello, world!' + manager.cleanup_resources() + + +class TestResourceManager: + def test_get_cache_path(self): + mgr = pkg_resources.ResourceManager() + path = mgr.get_cache_path('foo') + type_ = str(type(path)) + message = "Unexpected type from get_cache_path: " + type_ + assert isinstance(path, str), message + + def test_get_cache_path_race(self, tmpdir): + # Patch to os.path.isdir to create a race condition + def patched_isdir(dirname, unpatched_isdir=pkg_resources.isdir): + patched_isdir.dirnames.append(dirname) + + was_dir = unpatched_isdir(dirname) + if not was_dir: + os.makedirs(dirname) + return was_dir + + patched_isdir.dirnames = [] + + # Get a cache path with a "race condition" + mgr = pkg_resources.ResourceManager() + mgr.set_extraction_path(str(tmpdir)) + + archive_name = os.sep.join(('foo', 'bar', 'baz')) + with mock.patch.object(pkg_resources, 'isdir', new=patched_isdir): + mgr.get_cache_path(archive_name) + + # Because this test relies on the implementation details of this + # function, these assertions are a sentinel to ensure that the + # test suite will not fail silently if the implementation changes. + called_dirnames = patched_isdir.dirnames + assert len(called_dirnames) == 2 + assert called_dirnames[0].split(os.sep)[-2:] == ['foo', 'bar'] + assert called_dirnames[1].split(os.sep)[-1:] == ['foo'] + + """ + Tests to ensure that pkg_resources runs independently from setuptools. + """ + + def test_setuptools_not_imported(self): + """ + In a separate Python environment, import pkg_resources and assert + that action doesn't cause setuptools to be imported. + """ + lines = ( + 'import pkg_resources', + 'import sys', + ('assert "setuptools" not in sys.modules, "setuptools was imported"'), + ) + cmd = [sys.executable, '-c', '; '.join(lines)] + subprocess.check_call(cmd) + + +def make_test_distribution(metadata_path, metadata): + """ + Make a test Distribution object, and return it. + + :param metadata_path: the path to the metadata file that should be + created. This should be inside a distribution directory that should + also be created. For example, an argument value might end with + ".dist-info/METADATA". + :param metadata: the desired contents of the metadata file, as bytes. + """ + dist_dir = os.path.dirname(metadata_path) + os.mkdir(dist_dir) + with open(metadata_path, 'wb') as f: + f.write(metadata) + dists = list(pkg_resources.distributions_from_metadata(dist_dir)) + (dist,) = dists + + return dist + + +def test_get_metadata__bad_utf8(tmpdir): + """ + Test a metadata file with bytes that can't be decoded as utf-8. + """ + filename = 'METADATA' + # Convert the tmpdir LocalPath object to a string before joining. + metadata_path = os.path.join(str(tmpdir), 'foo.dist-info', filename) + # Encode a non-ascii string with the wrong encoding (not utf-8). + metadata = 'née'.encode('iso-8859-1') + dist = make_test_distribution(metadata_path, metadata=metadata) + + with pytest.raises(UnicodeDecodeError) as excinfo: + dist.get_metadata(filename) + + exc = excinfo.value + actual = str(exc) + expected = ( + # The error message starts with "'utf-8' codec ..." However, the + # spelling of "utf-8" can vary (e.g. "utf8") so we don't include it + "codec can't decode byte 0xe9 in position 1: " + 'invalid continuation byte in METADATA file at path: ' + ) + assert expected in actual, f'actual: {actual}' + assert actual.endswith(metadata_path), f'actual: {actual}' + + +def make_distribution_no_version(tmpdir, basename): + """ + Create a distribution directory with no file containing the version. + """ + dist_dir = tmpdir / basename + dist_dir.ensure_dir() + # Make the directory non-empty so distributions_from_metadata() + # will detect it and yield it. + dist_dir.join('temp.txt').ensure() + + dists = list(pkg_resources.distributions_from_metadata(dist_dir)) + assert len(dists) == 1 + (dist,) = dists + + return dist, dist_dir + + +@pytest.mark.parametrize( + ("suffix", "expected_filename", "expected_dist_type"), + [ + ('egg-info', 'PKG-INFO', EggInfoDistribution), + ('dist-info', 'METADATA', DistInfoDistribution), + ], +) +@pytest.mark.xfail( + sys.version_info[:2] == (3, 12) and sys.version_info.releaselevel != 'final', + reason="https://github.com/python/cpython/issues/103632", +) +def test_distribution_version_missing( + tmpdir, suffix, expected_filename, expected_dist_type +): + """ + Test Distribution.version when the "Version" header is missing. + """ + basename = f'foo.{suffix}' + dist, dist_dir = make_distribution_no_version(tmpdir, basename) + + expected_text = ( + f"Missing 'Version:' header and/or {expected_filename} file at path: " + ) + metadata_path = os.path.join(dist_dir, expected_filename) + + # Now check the exception raised when the "version" attribute is accessed. + with pytest.raises(ValueError) as excinfo: + dist.version + + err = str(excinfo.value) + # Include a string expression after the assert so the full strings + # will be visible for inspection on failure. + assert expected_text in err, str((expected_text, err)) + + # Also check the args passed to the ValueError. + msg, dist = excinfo.value.args + assert expected_text in msg + # Check that the message portion contains the path. + assert metadata_path in msg, str((metadata_path, msg)) + assert type(dist) is expected_dist_type + + +@pytest.mark.xfail( + sys.version_info[:2] == (3, 12) and sys.version_info.releaselevel != 'final', + reason="https://github.com/python/cpython/issues/103632", +) +def test_distribution_version_missing_undetected_path(): + """ + Test Distribution.version when the "Version" header is missing and + the path can't be detected. + """ + # Create a Distribution object with no metadata argument, which results + # in an empty metadata provider. + dist = Distribution('/foo') + with pytest.raises(ValueError) as excinfo: + dist.version + + msg, dist = excinfo.value.args + expected = ( + "Missing 'Version:' header and/or PKG-INFO file at path: [could not detect]" + ) + assert msg == expected + + +@pytest.mark.parametrize('only', [False, True]) +def test_dist_info_is_not_dir(tmp_path, only): + """Test path containing a file with dist-info extension.""" + dist_info = tmp_path / 'foobar.dist-info' + dist_info.touch() + assert not pkg_resources.dist_factory(str(tmp_path), str(dist_info), only) + + +def test_macos_vers_fallback(monkeypatch, tmp_path): + """Regression test for pkg_resources._macos_vers""" + orig_open = builtins.open + + # Pretend we need to use the plist file + monkeypatch.setattr('platform.mac_ver', mock.Mock(return_value=('', (), ''))) + + # Create fake content for the fake plist file + with open(tmp_path / 'fake.plist', 'wb') as fake_file: + plistlib.dump({"ProductVersion": "11.4"}, fake_file) + + # Pretend the fake file exists + monkeypatch.setattr('os.path.exists', mock.Mock(return_value=True)) + + def fake_open(file, *args, **kwargs): + return orig_open(tmp_path / 'fake.plist', *args, **kwargs) + + # Ensure that the _macos_vers works correctly + with mock.patch('builtins.open', mock.Mock(side_effect=fake_open)) as m: + pkg_resources._macos_vers.cache_clear() + assert pkg_resources._macos_vers() == ["11", "4"] + pkg_resources._macos_vers.cache_clear() + + m.assert_called() + + +class TestDeepVersionLookupDistutils: + @pytest.fixture + def env(self, tmpdir): + """ + Create a package environment, similar to a virtualenv, + in which packages are installed. + """ + + class Environment(str): + pass + + env = Environment(tmpdir) + tmpdir.chmod(stat.S_IRWXU) + subs = 'home', 'lib', 'scripts', 'data', 'egg-base' + env.paths = dict((dirname, str(tmpdir / dirname)) for dirname in subs) + list(map(os.mkdir, env.paths.values())) + return env + + def create_foo_pkg(self, env, version): + """ + Create a foo package installed (distutils-style) to env.paths['lib'] + as version. + """ + ld = "This package has unicode metadata! ❄" + attrs = dict(name='foo', version=version, long_description=ld) + dist = distutils.dist.Distribution(attrs) + iei_cmd = distutils.command.install_egg_info.install_egg_info(dist) + iei_cmd.initialize_options() + iei_cmd.install_dir = env.paths['lib'] + iei_cmd.finalize_options() + iei_cmd.run() + + def test_version_resolved_from_egg_info(self, env): + version = '1.11.0.dev0+2329eae' + self.create_foo_pkg(env, version) + + # this requirement parsing will raise a VersionConflict unless the + # .egg-info file is parsed (see #419 on BitBucket) + req = pkg_resources.Requirement.parse('foo>=1.9') + dist = pkg_resources.WorkingSet([env.paths['lib']]).find(req) + assert dist.version == version + + @pytest.mark.parametrize( + ("unnormalized", "normalized"), + [ + ('foo', 'foo'), + ('foo/', 'foo'), + ('foo/bar', 'foo/bar'), + ('foo/bar/', 'foo/bar'), + ], + ) + def test_normalize_path_trailing_sep(self, unnormalized, normalized): + """Ensure the trailing slash is cleaned for path comparison. + + See pypa/setuptools#1519. + """ + result_from_unnormalized = pkg_resources.normalize_path(unnormalized) + result_from_normalized = pkg_resources.normalize_path(normalized) + assert result_from_unnormalized == result_from_normalized + + @pytest.mark.skipif( + os.path.normcase('A') != os.path.normcase('a'), + reason='Testing case-insensitive filesystems.', + ) + @pytest.mark.parametrize( + ("unnormalized", "normalized"), + [ + ('MiXeD/CasE', 'mixed/case'), + ], + ) + def test_normalize_path_normcase(self, unnormalized, normalized): + """Ensure mixed case is normalized on case-insensitive filesystems.""" + result_from_unnormalized = pkg_resources.normalize_path(unnormalized) + result_from_normalized = pkg_resources.normalize_path(normalized) + assert result_from_unnormalized == result_from_normalized + + @pytest.mark.skipif( + os.path.sep != '\\', + reason='Testing systems using backslashes as path separators.', + ) + @pytest.mark.parametrize( + ("unnormalized", "expected"), + [ + ('forward/slash', 'forward\\slash'), + ('forward/slash/', 'forward\\slash'), + ('backward\\slash\\', 'backward\\slash'), + ], + ) + def test_normalize_path_backslash_sep(self, unnormalized, expected): + """Ensure path seps are cleaned on backslash path sep systems.""" + result = pkg_resources.normalize_path(unnormalized) + assert result.endswith(expected) + + +class TestWorkdirRequire: + def fake_site_packages(self, tmp_path, monkeypatch, dist_files): + site_packages = tmp_path / "site-packages" + site_packages.mkdir() + for file, content in self.FILES.items(): + path = site_packages / file + path.parent.mkdir(exist_ok=True, parents=True) + path.write_text(inspect.cleandoc(content), encoding="utf-8") + + monkeypatch.setattr(sys, "path", [site_packages]) + return os.fspath(site_packages) + + FILES = { + "pkg1_mod-1.2.3.dist-info/METADATA": """ + Metadata-Version: 2.4 + Name: pkg1.mod + Version: 1.2.3 + """, + "pkg2.mod-0.42.dist-info/METADATA": """ + Metadata-Version: 2.1 + Name: pkg2.mod + Version: 0.42 + """, + "pkg3_mod.egg-info/PKG-INFO": """ + Name: pkg3.mod + Version: 1.2.3.4 + """, + "pkg4.mod.egg-info/PKG-INFO": """ + Name: pkg4.mod + Version: 0.42.1 + """, + } + + @pytest.mark.parametrize( + ("version", "requirement"), + [ + ("1.2.3", "pkg1.mod>=1"), + ("0.42", "pkg2.mod>=0.4"), + ("1.2.3.4", "pkg3.mod<=2"), + ("0.42.1", "pkg4.mod>0.2,<1"), + ], + ) + def test_require_non_normalised_name( + self, tmp_path, monkeypatch, version, requirement + ): + # https://github.com/pypa/setuptools/issues/4853 + site_packages = self.fake_site_packages(tmp_path, monkeypatch, self.FILES) + ws = pkg_resources.WorkingSet([site_packages]) + + for req in [requirement, requirement.replace(".", "-")]: + [dist] = ws.require(req) + assert dist.version == version + assert os.path.samefile( + os.path.commonpath([dist.location, site_packages]), site_packages + ) diff --git a/pkg_resources/tests/test_resources.py b/pkg_resources/tests/test_resources.py new file mode 100644 index 0000000000..70436c0881 --- /dev/null +++ b/pkg_resources/tests/test_resources.py @@ -0,0 +1,869 @@ +import itertools +import os +import platform +import string +import sys + +import pytest +from packaging.specifiers import SpecifierSet + +import pkg_resources +from pkg_resources import ( + Distribution, + EntryPoint, + Requirement, + VersionConflict, + WorkingSet, + parse_requirements, + parse_version, + safe_name, + safe_version, +) + + +# from Python 3.6 docs. Available from itertools on Python 3.10 +def pairwise(iterable): + "s -> (s0,s1), (s1,s2), (s2, s3), ..." + a, b = itertools.tee(iterable) + next(b, None) + return zip(a, b) + + +class Metadata(pkg_resources.EmptyProvider): + """Mock object to return metadata as if from an on-disk distribution""" + + def __init__(self, *pairs) -> None: + self.metadata = dict(pairs) + + def has_metadata(self, name) -> bool: + return name in self.metadata + + def get_metadata(self, name): + return self.metadata[name] + + def get_metadata_lines(self, name): + return pkg_resources.yield_lines(self.get_metadata(name)) + + +dist_from_fn = pkg_resources.Distribution.from_filename + + +class TestDistro: + def testCollection(self): + # empty path should produce no distributions + ad = pkg_resources.Environment([], platform=None, python=None) + assert list(ad) == [] + assert ad['FooPkg'] == [] + ad.add(dist_from_fn("FooPkg-1.3_1.egg")) + ad.add(dist_from_fn("FooPkg-1.4-py2.4-win32.egg")) + ad.add(dist_from_fn("FooPkg-1.2-py2.4.egg")) + + # Name is in there now + assert ad['FooPkg'] + # But only 1 package + assert list(ad) == ['foopkg'] + + # Distributions sort by version + expected = ['1.4', '1.3-1', '1.2'] + assert [dist.version for dist in ad['FooPkg']] == expected + + # Removing a distribution leaves sequence alone + ad.remove(ad['FooPkg'][1]) + assert [dist.version for dist in ad['FooPkg']] == ['1.4', '1.2'] + + # And inserting adds them in order + ad.add(dist_from_fn("FooPkg-1.9.egg")) + assert [dist.version for dist in ad['FooPkg']] == ['1.9', '1.4', '1.2'] + + ws = WorkingSet([]) + foo12 = dist_from_fn("FooPkg-1.2-py2.4.egg") + foo14 = dist_from_fn("FooPkg-1.4-py2.4-win32.egg") + (req,) = parse_requirements("FooPkg>=1.3") + + # Nominal case: no distros on path, should yield all applicable + assert ad.best_match(req, ws).version == '1.9' + # If a matching distro is already installed, should return only that + ws.add(foo14) + assert ad.best_match(req, ws).version == '1.4' + + # If the first matching distro is unsuitable, it's a version conflict + ws = WorkingSet([]) + ws.add(foo12) + ws.add(foo14) + with pytest.raises(VersionConflict): + ad.best_match(req, ws) + + # If more than one match on the path, the first one takes precedence + ws = WorkingSet([]) + ws.add(foo14) + ws.add(foo12) + ws.add(foo14) + assert ad.best_match(req, ws).version == '1.4' + + def checkFooPkg(self, d): + assert d.project_name == "FooPkg" + assert d.key == "foopkg" + assert d.version == "1.3.post1" + assert d.py_version == "2.4" + assert d.platform == "win32" + assert d.parsed_version == parse_version("1.3-1") + + def testDistroBasics(self): + d = Distribution( + "/some/path", + project_name="FooPkg", + version="1.3-1", + py_version="2.4", + platform="win32", + ) + self.checkFooPkg(d) + + d = Distribution("/some/path") + assert d.py_version == f'{sys.version_info.major}.{sys.version_info.minor}' + assert d.platform is None + + def testDistroParse(self): + d = dist_from_fn("FooPkg-1.3.post1-py2.4-win32.egg") + self.checkFooPkg(d) + d = dist_from_fn("FooPkg-1.3.post1-py2.4-win32.egg-info") + self.checkFooPkg(d) + + def testDistroMetadata(self): + d = Distribution( + "/some/path", + project_name="FooPkg", + py_version="2.4", + platform="win32", + metadata=Metadata(('PKG-INFO', "Metadata-Version: 1.0\nVersion: 1.3-1\n")), + ) + self.checkFooPkg(d) + + def distRequires(self, txt): + return Distribution("/foo", metadata=Metadata(('depends.txt', txt))) + + def checkRequires(self, dist, txt, extras=()): + assert list(dist.requires(extras)) == list(parse_requirements(txt)) + + def testDistroDependsSimple(self): + for v in "Twisted>=1.5", "Twisted>=1.5\nZConfig>=2.0": + self.checkRequires(self.distRequires(v), v) + + needs_object_dir = pytest.mark.skipif( + not hasattr(object, '__dir__'), + reason='object.__dir__ necessary for self.__dir__ implementation', + ) + + def test_distribution_dir(self): + d = pkg_resources.Distribution() + dir(d) + + @needs_object_dir + def test_distribution_dir_includes_provider_dir(self): + d = pkg_resources.Distribution() + before = d.__dir__() + assert 'test_attr' not in before + d._provider.test_attr = None + after = d.__dir__() + assert len(after) == len(before) + 1 + assert 'test_attr' in after + + @needs_object_dir + def test_distribution_dir_ignores_provider_dir_leading_underscore(self): + d = pkg_resources.Distribution() + before = d.__dir__() + assert '_test_attr' not in before + d._provider._test_attr = None + after = d.__dir__() + assert len(after) == len(before) + assert '_test_attr' not in after + + def testResolve(self): + ad = pkg_resources.Environment([]) + ws = WorkingSet([]) + # Resolving no requirements -> nothing to install + assert list(ws.resolve([], ad)) == [] + # Request something not in the collection -> DistributionNotFound + with pytest.raises(pkg_resources.DistributionNotFound): + ws.resolve(parse_requirements("Foo"), ad) + + Foo = Distribution.from_filename( + "/foo_dir/Foo-1.2.egg", + metadata=Metadata(('depends.txt', "[bar]\nBaz>=2.0")), + ) + ad.add(Foo) + ad.add(Distribution.from_filename("Foo-0.9.egg")) + + # Request thing(s) that are available -> list to activate + for i in range(3): + targets = list(ws.resolve(parse_requirements("Foo"), ad)) + assert targets == [Foo] + list(map(ws.add, targets)) + with pytest.raises(VersionConflict): + ws.resolve(parse_requirements("Foo==0.9"), ad) + ws = WorkingSet([]) # reset + + # Request an extra that causes an unresolved dependency for "Baz" + with pytest.raises(pkg_resources.DistributionNotFound): + ws.resolve(parse_requirements("Foo[bar]"), ad) + Baz = Distribution.from_filename( + "/foo_dir/Baz-2.1.egg", metadata=Metadata(('depends.txt', "Foo")) + ) + ad.add(Baz) + + # Activation list now includes resolved dependency + assert list(ws.resolve(parse_requirements("Foo[bar]"), ad)) == [Foo, Baz] + # Requests for conflicting versions produce VersionConflict + with pytest.raises(VersionConflict) as vc: + ws.resolve(parse_requirements("Foo==1.2\nFoo!=1.2"), ad) + + msg = 'Foo 0.9 is installed but Foo==1.2 is required' + assert vc.value.report() == msg + + def test_environment_marker_evaluation_negative(self): + """Environment markers are evaluated at resolution time.""" + ad = pkg_resources.Environment([]) + ws = WorkingSet([]) + res = ws.resolve(parse_requirements("Foo;python_version<'2'"), ad) + assert list(res) == [] + + def test_environment_marker_evaluation_positive(self): + ad = pkg_resources.Environment([]) + ws = WorkingSet([]) + Foo = Distribution.from_filename("/foo_dir/Foo-1.2.dist-info") + ad.add(Foo) + res = ws.resolve(parse_requirements("Foo;python_version>='2'"), ad) + assert list(res) == [Foo] + + def test_environment_marker_evaluation_called(self): + """ + If one package foo requires bar without any extras, + markers should pass for bar without extras. + """ + (parent_req,) = parse_requirements("foo") + (req,) = parse_requirements("bar;python_version>='2'") + req_extras = pkg_resources._ReqExtras({req: parent_req.extras}) + assert req_extras.markers_pass(req) + + (parent_req,) = parse_requirements("foo[]") + (req,) = parse_requirements("bar;python_version>='2'") + req_extras = pkg_resources._ReqExtras({req: parent_req.extras}) + assert req_extras.markers_pass(req) + + def test_marker_evaluation_with_extras(self): + """Extras are also evaluated as markers at resolution time.""" + ad = pkg_resources.Environment([]) + ws = WorkingSet([]) + Foo = Distribution.from_filename( + "/foo_dir/Foo-1.2.dist-info", + metadata=Metadata(( + "METADATA", + "Provides-Extra: baz\nRequires-Dist: quux; extra=='baz'", + )), + ) + ad.add(Foo) + assert list(ws.resolve(parse_requirements("Foo"), ad)) == [Foo] + quux = Distribution.from_filename("/foo_dir/quux-1.0.dist-info") + ad.add(quux) + res = list(ws.resolve(parse_requirements("Foo[baz]"), ad)) + assert res == [Foo, quux] + + def test_marker_evaluation_with_extras_normlized(self): + """Extras are also evaluated as markers at resolution time.""" + ad = pkg_resources.Environment([]) + ws = WorkingSet([]) + Foo = Distribution.from_filename( + "/foo_dir/Foo-1.2.dist-info", + metadata=Metadata(( + "METADATA", + "Provides-Extra: baz-lightyear\n" + "Requires-Dist: quux; extra=='baz-lightyear'", + )), + ) + ad.add(Foo) + assert list(ws.resolve(parse_requirements("Foo"), ad)) == [Foo] + quux = Distribution.from_filename("/foo_dir/quux-1.0.dist-info") + ad.add(quux) + res = list(ws.resolve(parse_requirements("Foo[baz-lightyear]"), ad)) + assert res == [Foo, quux] + + def test_marker_evaluation_with_multiple_extras(self): + ad = pkg_resources.Environment([]) + ws = WorkingSet([]) + Foo = Distribution.from_filename( + "/foo_dir/Foo-1.2.dist-info", + metadata=Metadata(( + "METADATA", + "Provides-Extra: baz\n" + "Requires-Dist: quux; extra=='baz'\n" + "Provides-Extra: bar\n" + "Requires-Dist: fred; extra=='bar'\n", + )), + ) + ad.add(Foo) + quux = Distribution.from_filename("/foo_dir/quux-1.0.dist-info") + ad.add(quux) + fred = Distribution.from_filename("/foo_dir/fred-0.1.dist-info") + ad.add(fred) + res = list(ws.resolve(parse_requirements("Foo[baz,bar]"), ad)) + assert sorted(res) == [fred, quux, Foo] + + def test_marker_evaluation_with_extras_loop(self): + ad = pkg_resources.Environment([]) + ws = WorkingSet([]) + a = Distribution.from_filename( + "/foo_dir/a-0.2.dist-info", + metadata=Metadata(("METADATA", "Requires-Dist: c[a]")), + ) + b = Distribution.from_filename( + "/foo_dir/b-0.3.dist-info", + metadata=Metadata(("METADATA", "Requires-Dist: c[b]")), + ) + c = Distribution.from_filename( + "/foo_dir/c-1.0.dist-info", + metadata=Metadata(( + "METADATA", + "Provides-Extra: a\n" + "Requires-Dist: b;extra=='a'\n" + "Provides-Extra: b\n" + "Requires-Dist: foo;extra=='b'", + )), + ) + foo = Distribution.from_filename("/foo_dir/foo-0.1.dist-info") + for dist in (a, b, c, foo): + ad.add(dist) + res = list(ws.resolve(parse_requirements("a"), ad)) + assert res == [a, c, b, foo] + + @pytest.mark.xfail( + sys.version_info[:2] == (3, 12) and sys.version_info.releaselevel != 'final', + reason="https://github.com/python/cpython/issues/103632", + ) + def testDistroDependsOptions(self): + d = self.distRequires( + """ + Twisted>=1.5 + [docgen] + ZConfig>=2.0 + docutils>=0.3 + [fastcgi] + fcgiapp>=0.1""" + ) + self.checkRequires(d, "Twisted>=1.5") + self.checkRequires( + d, "Twisted>=1.5 ZConfig>=2.0 docutils>=0.3".split(), ["docgen"] + ) + self.checkRequires(d, "Twisted>=1.5 fcgiapp>=0.1".split(), ["fastcgi"]) + self.checkRequires( + d, + "Twisted>=1.5 ZConfig>=2.0 docutils>=0.3 fcgiapp>=0.1".split(), + ["docgen", "fastcgi"], + ) + self.checkRequires( + d, + "Twisted>=1.5 fcgiapp>=0.1 ZConfig>=2.0 docutils>=0.3".split(), + ["fastcgi", "docgen"], + ) + with pytest.raises(pkg_resources.UnknownExtra): + d.requires(["foo"]) + + +class TestWorkingSet: + def test_find_conflicting(self): + ws = WorkingSet([]) + Foo = Distribution.from_filename("/foo_dir/Foo-1.2.egg") + ws.add(Foo) + + # create a requirement that conflicts with Foo 1.2 + req = next(parse_requirements("Foo<1.2")) + + with pytest.raises(VersionConflict) as vc: + ws.find(req) + + msg = 'Foo 1.2 is installed but Foo<1.2 is required' + assert vc.value.report() == msg + + def test_resolve_conflicts_with_prior(self): + """ + A ContextualVersionConflict should be raised when a requirement + conflicts with a prior requirement for a different package. + """ + # Create installation where Foo depends on Baz 1.0 and Bar depends on + # Baz 2.0. + ws = WorkingSet([]) + md = Metadata(('depends.txt', "Baz==1.0")) + Foo = Distribution.from_filename("/foo_dir/Foo-1.0.egg", metadata=md) + ws.add(Foo) + md = Metadata(('depends.txt', "Baz==2.0")) + Bar = Distribution.from_filename("/foo_dir/Bar-1.0.egg", metadata=md) + ws.add(Bar) + Baz = Distribution.from_filename("/foo_dir/Baz-1.0.egg") + ws.add(Baz) + Baz = Distribution.from_filename("/foo_dir/Baz-2.0.egg") + ws.add(Baz) + + with pytest.raises(VersionConflict) as vc: + ws.resolve(parse_requirements("Foo\nBar\n")) + + msg = "Baz 1.0 is installed but Baz==2.0 is required by " + msg += repr(set(['Bar'])) + assert vc.value.report() == msg + + +class TestEntryPoints: + def assertfields(self, ep): + assert ep.name == "foo" + assert ep.module_name == "pkg_resources.tests.test_resources" + assert ep.attrs == ("TestEntryPoints",) + assert ep.extras == ("x",) + assert ep.load() is TestEntryPoints + expect = "foo = pkg_resources.tests.test_resources:TestEntryPoints [x]" + assert str(ep) == expect + + def setup_method(self, method): + self.dist = Distribution.from_filename( + "FooPkg-1.2-py2.4.egg", metadata=Metadata(('requires.txt', '[x]')) + ) + + def testBasics(self): + ep = EntryPoint( + "foo", + "pkg_resources.tests.test_resources", + ["TestEntryPoints"], + ["x"], + self.dist, + ) + self.assertfields(ep) + + def testParse(self): + s = "foo = pkg_resources.tests.test_resources:TestEntryPoints [x]" + ep = EntryPoint.parse(s, self.dist) + self.assertfields(ep) + + ep = EntryPoint.parse("bar baz= spammity[PING]") + assert ep.name == "bar baz" + assert ep.module_name == "spammity" + assert ep.attrs == () + assert ep.extras == ("ping",) + + ep = EntryPoint.parse(" fizzly = wocka:foo") + assert ep.name == "fizzly" + assert ep.module_name == "wocka" + assert ep.attrs == ("foo",) + assert ep.extras == () + + # plus in the name + spec = "html+mako = mako.ext.pygmentplugin:MakoHtmlLexer" + ep = EntryPoint.parse(spec) + assert ep.name == 'html+mako' + + reject_specs = "foo", "x=a:b:c", "q=x/na", "fez=pish:tush-z", "x=f[a]>2" + + @pytest.mark.parametrize("reject_spec", reject_specs) + def test_reject_spec(self, reject_spec): + with pytest.raises(ValueError): + EntryPoint.parse(reject_spec) + + def test_printable_name(self): + """ + Allow any printable character in the name. + """ + # Create a name with all printable characters; strip the whitespace. + name = string.printable.strip() + spec = "{name} = module:attr".format(**locals()) + ep = EntryPoint.parse(spec) + assert ep.name == name + + def checkSubMap(self, m): + assert len(m) == len(self.submap_expect) + for key, ep in self.submap_expect.items(): + assert m.get(key).name == ep.name + assert m.get(key).module_name == ep.module_name + assert sorted(m.get(key).attrs) == sorted(ep.attrs) + assert sorted(m.get(key).extras) == sorted(ep.extras) + + submap_expect = dict( + feature1=EntryPoint('feature1', 'somemodule', ['somefunction']), + feature2=EntryPoint( + 'feature2', 'another.module', ['SomeClass'], ['extra1', 'extra2'] + ), + feature3=EntryPoint('feature3', 'this.module', extras=['something']), + ) + submap_str = """ + # define features for blah blah + feature1 = somemodule:somefunction + feature2 = another.module:SomeClass [extra1,extra2] + feature3 = this.module [something] + """ + + def testParseList(self): + self.checkSubMap(EntryPoint.parse_group("xyz", self.submap_str)) + with pytest.raises(ValueError): + EntryPoint.parse_group("x a", "foo=bar") + with pytest.raises(ValueError): + EntryPoint.parse_group("x", ["foo=baz", "foo=bar"]) + + def testParseMap(self): + m = EntryPoint.parse_map({'xyz': self.submap_str}) + self.checkSubMap(m['xyz']) + assert list(m.keys()) == ['xyz'] + m = EntryPoint.parse_map("[xyz]\n" + self.submap_str) + self.checkSubMap(m['xyz']) + assert list(m.keys()) == ['xyz'] + with pytest.raises(ValueError): + EntryPoint.parse_map(["[xyz]", "[xyz]"]) + with pytest.raises(ValueError): + EntryPoint.parse_map(self.submap_str) + + def testDeprecationWarnings(self): + ep = EntryPoint( + "foo", "pkg_resources.tests.test_resources", ["TestEntryPoints"], ["x"] + ) + with pytest.warns(pkg_resources.PkgResourcesDeprecationWarning): + ep.load(require=False) + + +class TestRequirements: + def testBasics(self): + r = Requirement.parse("Twisted>=1.2") + assert str(r) == "Twisted>=1.2" + assert repr(r) == "Requirement.parse('Twisted>=1.2')" + assert r == Requirement("Twisted>=1.2") + assert r == Requirement("twisTed>=1.2") + assert r != Requirement("Twisted>=2.0") + assert r != Requirement("Zope>=1.2") + assert r != Requirement("Zope>=3.0") + assert r != Requirement("Twisted[extras]>=1.2") + + def testOrdering(self): + r1 = Requirement("Twisted==1.2c1,>=1.2") + r2 = Requirement("Twisted>=1.2,==1.2c1") + assert r1 == r2 + assert str(r1) == str(r2) + assert str(r2) == "Twisted==1.2c1,>=1.2" + assert Requirement("Twisted") != Requirement( + "Twisted @ https://localhost/twisted.zip" + ) + + def testBasicContains(self): + r = Requirement("Twisted>=1.2") + foo_dist = Distribution.from_filename("FooPkg-1.3_1.egg") + twist11 = Distribution.from_filename("Twisted-1.1.egg") + twist12 = Distribution.from_filename("Twisted-1.2.egg") + assert parse_version('1.2') in r + assert parse_version('1.1') not in r + assert '1.2' in r + assert '1.1' not in r + assert foo_dist not in r + assert twist11 not in r + assert twist12 in r + + def testOptionsAndHashing(self): + r1 = Requirement.parse("Twisted[foo,bar]>=1.2") + r2 = Requirement.parse("Twisted[bar,FOO]>=1.2") + assert r1 == r2 + assert set(r1.extras) == set(("foo", "bar")) + assert set(r2.extras) == set(("foo", "bar")) + assert hash(r1) == hash(r2) + assert hash(r1) == hash(( + "twisted", + None, + SpecifierSet(">=1.2"), + frozenset(["foo", "bar"]), + None, + )) + assert hash( + Requirement.parse("Twisted @ https://localhost/twisted.zip") + ) == hash(( + "twisted", + "https://localhost/twisted.zip", + SpecifierSet(), + frozenset(), + None, + )) + + def testVersionEquality(self): + r1 = Requirement.parse("foo==0.3a2") + r2 = Requirement.parse("foo!=0.3a4") + d = Distribution.from_filename + + assert d("foo-0.3a4.egg") not in r1 + assert d("foo-0.3a1.egg") not in r1 + assert d("foo-0.3a4.egg") not in r2 + + assert d("foo-0.3a2.egg") in r1 + assert d("foo-0.3a2.egg") in r2 + assert d("foo-0.3a3.egg") in r2 + assert d("foo-0.3a5.egg") in r2 + + def testSetuptoolsProjectName(self): + """ + The setuptools project should implement the setuptools package. + """ + + assert Requirement.parse('setuptools').project_name == 'setuptools' + # setuptools 0.7 and higher means setuptools. + assert Requirement.parse('setuptools == 0.7').project_name == 'setuptools' + assert Requirement.parse('setuptools == 0.7a1').project_name == 'setuptools' + assert Requirement.parse('setuptools >= 0.7').project_name == 'setuptools' + + +class TestParsing: + def testEmptyParse(self): + assert list(parse_requirements('')) == [] + + def testYielding(self): + for inp, out in [ + ([], []), + ('x', ['x']), + ([[]], []), + (' x\n y', ['x', 'y']), + (['x\n\n', 'y'], ['x', 'y']), + ]: + assert list(pkg_resources.yield_lines(inp)) == out + + def testSplitting(self): + sample = """ + x + [Y] + z + + a + [b ] + # foo + c + [ d] + [q] + v + """ + assert list(pkg_resources.split_sections(sample)) == [ + (None, ["x"]), + ("Y", ["z", "a"]), + ("b", ["c"]), + ("d", []), + ("q", ["v"]), + ] + with pytest.raises(ValueError): + list(pkg_resources.split_sections("[foo")) + + def testSafeName(self): + assert safe_name("adns-python") == "adns-python" + assert safe_name("WSGI Utils") == "WSGI-Utils" + assert safe_name("WSGI Utils") == "WSGI-Utils" + assert safe_name("Money$$$Maker") == "Money-Maker" + assert safe_name("peak.web") != "peak-web" + + def testSafeVersion(self): + assert safe_version("1.2-1") == "1.2.post1" + assert safe_version("1.2 alpha") == "1.2.alpha" + assert safe_version("2.3.4 20050521") == "2.3.4.20050521" + assert safe_version("Money$$$Maker") == "Money-Maker" + assert safe_version("peak.web") == "peak.web" + + def testSimpleRequirements(self): + assert list(parse_requirements('Twis-Ted>=1.2-1')) == [ + Requirement('Twis-Ted>=1.2-1') + ] + assert list(parse_requirements('Twisted >=1.2, \\ # more\n<2.0')) == [ + Requirement('Twisted>=1.2,<2.0') + ] + assert Requirement.parse("FooBar==1.99a3") == Requirement("FooBar==1.99a3") + with pytest.raises(ValueError): + Requirement.parse(">=2.3") + with pytest.raises(ValueError): + Requirement.parse("x\\") + with pytest.raises(ValueError): + Requirement.parse("x==2 q") + with pytest.raises(ValueError): + Requirement.parse("X==1\nY==2") + with pytest.raises(ValueError): + Requirement.parse("#") + + def test_requirements_with_markers(self): + assert Requirement.parse("foobar;os_name=='a'") == Requirement.parse( + "foobar;os_name=='a'" + ) + assert Requirement.parse( + "name==1.1;python_version=='2.7'" + ) != Requirement.parse("name==1.1;python_version=='3.6'") + assert Requirement.parse( + "name==1.0;python_version=='2.7'" + ) != Requirement.parse("name==1.2;python_version=='2.7'") + assert Requirement.parse( + "name[foo]==1.0;python_version=='3.6'" + ) != Requirement.parse("name[foo,bar]==1.0;python_version=='3.6'") + + def test_local_version(self): + parse_requirements('foo==1.0+org1') + + def test_spaces_between_multiple_versions(self): + parse_requirements('foo>=1.0, <3') + parse_requirements('foo >= 1.0, < 3') + + @pytest.mark.parametrize( + ("lower", "upper"), + [ + ('1.2-rc1', '1.2rc1'), + ('0.4', '0.4.0'), + ('0.4.0.0', '0.4.0'), + ('0.4.0-0', '0.4-0'), + ('0post1', '0.0post1'), + ('0pre1', '0.0c1'), + ('0.0.0preview1', '0c1'), + ('0.0c1', '0-rc1'), + ('1.2a1', '1.2.a.1'), + ('1.2.a', '1.2a'), + ], + ) + def testVersionEquality(self, lower, upper): + assert parse_version(lower) == parse_version(upper) + + torture = """ + 0.80.1-3 0.80.1-2 0.80.1-1 0.79.9999+0.80.0pre4-1 + 0.79.9999+0.80.0pre2-3 0.79.9999+0.80.0pre2-2 + 0.77.2-1 0.77.1-1 0.77.0-1 + """ + + @pytest.mark.parametrize( + ("lower", "upper"), + [ + ('2.1', '2.1.1'), + ('2a1', '2b0'), + ('2a1', '2.1'), + ('2.3a1', '2.3'), + ('2.1-1', '2.1-2'), + ('2.1-1', '2.1.1'), + ('2.1', '2.1post4'), + ('2.1a0-20040501', '2.1'), + ('1.1', '02.1'), + ('3.2', '3.2.post0'), + ('3.2post1', '3.2post2'), + ('0.4', '4.0'), + ('0.0.4', '0.4.0'), + ('0post1', '0.4post1'), + ('2.1.0-rc1', '2.1.0'), + ('2.1dev', '2.1a0'), + ] + + list(pairwise(reversed(torture.split()))), + ) + def testVersionOrdering(self, lower, upper): + assert parse_version(lower) < parse_version(upper) + + def testVersionHashable(self): + """ + Ensure that our versions stay hashable even though we've subclassed + them and added some shim code to them. + """ + assert hash(parse_version("1.0")) == hash(parse_version("1.0")) + + +class TestNamespaces: + ns_str = "__import__('pkg_resources').declare_namespace(__name__)\n" + + @pytest.fixture + def symlinked_tmpdir(self, tmpdir): + """ + Where available, return the tempdir as a symlink, + which as revealed in #231 is more fragile than + a natural tempdir. + """ + if not hasattr(os, 'symlink'): + yield str(tmpdir) + return + + link_name = str(tmpdir) + '-linked' + os.symlink(str(tmpdir), link_name) + try: + yield type(tmpdir)(link_name) + finally: + os.unlink(link_name) + + @pytest.fixture(autouse=True) + def patched_path(self, tmpdir): + """ + Patch sys.path to include the 'site-pkgs' dir. Also + restore pkg_resources._namespace_packages to its + former state. + """ + saved_ns_pkgs = pkg_resources._namespace_packages.copy() + saved_sys_path = sys.path[:] + site_pkgs = tmpdir.mkdir('site-pkgs') + sys.path.append(str(site_pkgs)) + try: + yield + finally: + pkg_resources._namespace_packages = saved_ns_pkgs + sys.path = saved_sys_path + + issue591 = pytest.mark.xfail(platform.system() == 'Windows', reason="#591") + + @issue591 + def test_two_levels_deep(self, symlinked_tmpdir): + """ + Test nested namespace packages + Create namespace packages in the following tree : + site-packages-1/pkg1/pkg2 + site-packages-2/pkg1/pkg2 + Check both are in the _namespace_packages dict and that their __path__ + is correct + """ + real_tmpdir = symlinked_tmpdir.realpath() + tmpdir = symlinked_tmpdir + sys.path.append(str(tmpdir / 'site-pkgs2')) + site_dirs = tmpdir / 'site-pkgs', tmpdir / 'site-pkgs2' + for site in site_dirs: + pkg1 = site / 'pkg1' + pkg2 = pkg1 / 'pkg2' + pkg2.ensure_dir() + (pkg1 / '__init__.py').write_text(self.ns_str, encoding='utf-8') + (pkg2 / '__init__.py').write_text(self.ns_str, encoding='utf-8') + with pytest.warns(DeprecationWarning, match="pkg_resources.declare_namespace"): + import pkg1 # pyright: ignore[reportMissingImports] # Temporary package for test + assert "pkg1" in pkg_resources._namespace_packages + # attempt to import pkg2 from site-pkgs2 + with pytest.warns(DeprecationWarning, match="pkg_resources.declare_namespace"): + import pkg1.pkg2 # pyright: ignore[reportMissingImports] # Temporary package for test + # check the _namespace_packages dict + assert "pkg1.pkg2" in pkg_resources._namespace_packages + assert pkg_resources._namespace_packages["pkg1"] == ["pkg1.pkg2"] + # check the __path__ attribute contains both paths + expected = [ + str(real_tmpdir / "site-pkgs" / "pkg1" / "pkg2"), + str(real_tmpdir / "site-pkgs2" / "pkg1" / "pkg2"), + ] + assert pkg1.pkg2.__path__ == expected + + @issue591 + def test_path_order(self, symlinked_tmpdir): + """ + Test that if multiple versions of the same namespace package subpackage + are on different sys.path entries, that only the one earliest on + sys.path is imported, and that the namespace package's __path__ is in + the correct order. + + Regression test for https://github.com/pypa/setuptools/issues/207 + """ + + tmpdir = symlinked_tmpdir + site_dirs = ( + tmpdir / "site-pkgs", + tmpdir / "site-pkgs2", + tmpdir / "site-pkgs3", + ) + + vers_str = "__version__ = %r" + + for number, site in enumerate(site_dirs, 1): + if number > 1: + sys.path.append(str(site)) + nspkg = site / 'nspkg' + subpkg = nspkg / 'subpkg' + subpkg.ensure_dir() + (nspkg / '__init__.py').write_text(self.ns_str, encoding='utf-8') + (subpkg / '__init__.py').write_text(vers_str % number, encoding='utf-8') + + with pytest.warns(DeprecationWarning, match="pkg_resources.declare_namespace"): + import nspkg # pyright: ignore[reportMissingImports] # Temporary package for test + import nspkg.subpkg # pyright: ignore[reportMissingImports] # Temporary package for test + expected = [str(site.realpath() / 'nspkg') for site in site_dirs] + assert nspkg.__path__ == expected + assert nspkg.subpkg.__version__ == 1 diff --git a/pkg_resources/tests/test_working_set.py b/pkg_resources/tests/test_working_set.py new file mode 100644 index 0000000000..ed20c59dd3 --- /dev/null +++ b/pkg_resources/tests/test_working_set.py @@ -0,0 +1,505 @@ +import functools +import inspect +import re +import textwrap + +import pytest + +import pkg_resources + +from .test_resources import Metadata + + +def strip_comments(s): + return '\n'.join( + line + for line in s.split('\n') + if line.strip() and not line.strip().startswith('#') + ) + + +def parse_distributions(s): + """ + Parse a series of distribution specs of the form: + {project_name}-{version} + [optional, indented requirements specification] + + Example: + + foo-0.2 + bar-1.0 + foo>=3.0 + [feature] + baz + + yield 2 distributions: + - project_name=foo, version=0.2 + - project_name=bar, version=1.0, + requires=['foo>=3.0', 'baz; extra=="feature"'] + """ + s = s.strip() + for spec in re.split(r'\n(?=[^\s])', s): + if not spec: + continue + fields = spec.split('\n', 1) + assert 1 <= len(fields) <= 2 + name, version = fields.pop(0).rsplit('-', 1) + if fields: + requires = textwrap.dedent(fields.pop(0)) + metadata = Metadata(('requires.txt', requires)) + else: + metadata = None + dist = pkg_resources.Distribution( + project_name=name, version=version, metadata=metadata + ) + yield dist + + +class FakeInstaller: + def __init__(self, installable_dists) -> None: + self._installable_dists = installable_dists + + def __call__(self, req): + return next( + iter(filter(lambda dist: dist in req, self._installable_dists)), None + ) + + +def parametrize_test_working_set_resolve(*test_list): + idlist = [] + argvalues = [] + for test in test_list: + ( + name, + installed_dists, + installable_dists, + requirements, + expected1, + expected2, + ) = ( + strip_comments(s.lstrip()) + for s in textwrap.dedent(test).lstrip().split('\n\n', 5) + ) + installed_dists = list(parse_distributions(installed_dists)) + installable_dists = list(parse_distributions(installable_dists)) + requirements = list(pkg_resources.parse_requirements(requirements)) + for id_, replace_conflicting, expected in ( + (name, False, expected1), + (name + '_replace_conflicting', True, expected2), + ): + idlist.append(id_) + expected = strip_comments(expected.strip()) + if re.match(r'\w+$', expected): + expected = getattr(pkg_resources, expected) + assert issubclass(expected, Exception) + else: + expected = list(parse_distributions(expected)) + argvalues.append( + pytest.param( + installed_dists, + installable_dists, + requirements, + replace_conflicting, + expected, + ) + ) + return pytest.mark.parametrize( + ( + "installed_dists", + "installable_dists", + "requirements", + "replace_conflicting", + "resolved_dists_or_exception", + ), + argvalues, + ids=idlist, + ) + + +@parametrize_test_working_set_resolve( + """ + # id + noop + + # installed + + # installable + + # wanted + + # resolved + + # resolved [replace conflicting] + """, + """ + # id + already_installed + + # installed + foo-3.0 + + # installable + + # wanted + foo>=2.1,!=3.1,<4 + + # resolved + foo-3.0 + + # resolved [replace conflicting] + foo-3.0 + """, + """ + # id + installable_not_installed + + # installed + + # installable + foo-3.0 + foo-4.0 + + # wanted + foo>=2.1,!=3.1,<4 + + # resolved + foo-3.0 + + # resolved [replace conflicting] + foo-3.0 + """, + """ + # id + not_installable + + # installed + + # installable + + # wanted + foo>=2.1,!=3.1,<4 + + # resolved + DistributionNotFound + + # resolved [replace conflicting] + DistributionNotFound + """, + """ + # id + no_matching_version + + # installed + + # installable + foo-3.1 + + # wanted + foo>=2.1,!=3.1,<4 + + # resolved + DistributionNotFound + + # resolved [replace conflicting] + DistributionNotFound + """, + """ + # id + installable_with_installed_conflict + + # installed + foo-3.1 + + # installable + foo-3.5 + + # wanted + foo>=2.1,!=3.1,<4 + + # resolved + VersionConflict + + # resolved [replace conflicting] + foo-3.5 + """, + """ + # id + not_installable_with_installed_conflict + + # installed + foo-3.1 + + # installable + + # wanted + foo>=2.1,!=3.1,<4 + + # resolved + VersionConflict + + # resolved [replace conflicting] + DistributionNotFound + """, + """ + # id + installed_with_installed_require + + # installed + foo-3.9 + baz-0.1 + foo>=2.1,!=3.1,<4 + + # installable + + # wanted + baz + + # resolved + foo-3.9 + baz-0.1 + + # resolved [replace conflicting] + foo-3.9 + baz-0.1 + """, + """ + # id + installed_with_conflicting_installed_require + + # installed + foo-5 + baz-0.1 + foo>=2.1,!=3.1,<4 + + # installable + + # wanted + baz + + # resolved + VersionConflict + + # resolved [replace conflicting] + DistributionNotFound + """, + """ + # id + installed_with_installable_conflicting_require + + # installed + foo-5 + baz-0.1 + foo>=2.1,!=3.1,<4 + + # installable + foo-2.9 + + # wanted + baz + + # resolved + VersionConflict + + # resolved [replace conflicting] + baz-0.1 + foo-2.9 + """, + """ + # id + installed_with_installable_require + + # installed + baz-0.1 + foo>=2.1,!=3.1,<4 + + # installable + foo-3.9 + + # wanted + baz + + # resolved + foo-3.9 + baz-0.1 + + # resolved [replace conflicting] + foo-3.9 + baz-0.1 + """, + """ + # id + installable_with_installed_require + + # installed + foo-3.9 + + # installable + baz-0.1 + foo>=2.1,!=3.1,<4 + + # wanted + baz + + # resolved + foo-3.9 + baz-0.1 + + # resolved [replace conflicting] + foo-3.9 + baz-0.1 + """, + """ + # id + installable_with_installable_require + + # installed + + # installable + foo-3.9 + baz-0.1 + foo>=2.1,!=3.1,<4 + + # wanted + baz + + # resolved + foo-3.9 + baz-0.1 + + # resolved [replace conflicting] + foo-3.9 + baz-0.1 + """, + """ + # id + installable_with_conflicting_installable_require + + # installed + foo-5 + + # installable + foo-2.9 + baz-0.1 + foo>=2.1,!=3.1,<4 + + # wanted + baz + + # resolved + VersionConflict + + # resolved [replace conflicting] + baz-0.1 + foo-2.9 + """, + """ + # id + conflicting_installables + + # installed + + # installable + foo-2.9 + foo-5.0 + + # wanted + foo>=2.1,!=3.1,<4 + foo>=4 + + # resolved + VersionConflict + + # resolved [replace conflicting] + VersionConflict + """, + """ + # id + installables_with_conflicting_requires + + # installed + + # installable + foo-2.9 + dep==1.0 + baz-5.0 + dep==2.0 + dep-1.0 + dep-2.0 + + # wanted + foo + baz + + # resolved + VersionConflict + + # resolved [replace conflicting] + VersionConflict + """, + """ + # id + installables_with_conflicting_nested_requires + + # installed + + # installable + foo-2.9 + dep1 + dep1-1.0 + subdep<1.0 + baz-5.0 + dep2 + dep2-1.0 + subdep>1.0 + subdep-0.9 + subdep-1.1 + + # wanted + foo + baz + + # resolved + VersionConflict + + # resolved [replace conflicting] + VersionConflict + """, + """ + # id + wanted_normalized_name_installed_canonical + + # installed + foo.bar-3.6 + + # installable + + # wanted + foo-bar==3.6 + + # resolved + foo.bar-3.6 + + # resolved [replace conflicting] + foo.bar-3.6 + """, +) +def test_working_set_resolve( + installed_dists, + installable_dists, + requirements, + replace_conflicting, + resolved_dists_or_exception, +): + ws = pkg_resources.WorkingSet([]) + list(map(ws.add, installed_dists)) + resolve_call = functools.partial( + ws.resolve, + requirements, + installer=FakeInstaller(installable_dists), + replace_conflicting=replace_conflicting, + ) + if inspect.isclass(resolved_dists_or_exception): + with pytest.raises(resolved_dists_or_exception): + resolve_call() + else: + assert sorted(resolve_call()) == sorted(resolved_dists_or_exception) diff --git a/pyproject.toml b/pyproject.toml new file mode 100644 index 0000000000..2ef6e19256 --- /dev/null +++ b/pyproject.toml @@ -0,0 +1,218 @@ +[build-system] +requires = [] +build-backend = "setuptools.build_meta" +backend-path = ["."] + +[project] +name = "setuptools" +version = "80.0.0" +authors = [ + { name = "Python Packaging Authority", email = "distutils-sig@python.org" }, +] +description = "Easily download, build, install, upgrade, and uninstall Python packages" +readme = "README.rst" +classifiers = [ + "Development Status :: 5 - Production/Stable", + "Intended Audience :: Developers", + "Programming Language :: Python :: 3", + "Programming Language :: Python :: 3 :: Only", + "Topic :: Software Development :: Libraries :: Python Modules", + "Topic :: System :: Archiving :: Packaging", + "Topic :: System :: Systems Administration", + "Topic :: Utilities", +] +requires-python = ">=3.9" +dependencies = [ +] +keywords = ["CPAN PyPI distutils eggs package management"] + +[project.urls] +Source = "https://github.com/pypa/setuptools" +Documentation = "https://setuptools.pypa.io/" +Changelog = "https://setuptools.pypa.io/en/stable/history.html" + +[project.optional-dependencies] +test = [ + # upstream + "pytest >= 6, != 8.1.*", + + # local + "virtualenv>=13.0.0", + "wheel>=0.44.0", # Consistent requirement normalisation in METADATA (see #4547) + "pip>=19.1", # For proper file:// URLs support. + "packaging>=24.2", + "jaraco.envs>=2.2", + "pytest-xdist>=3", # Dropped dependency on pytest-fork and py + "jaraco.path>=3.7.2", # Typing fixes + "build[virtualenv]>=1.0.3", + "filelock>=3.4.0", + "ini2toml[lite]>=0.14", + "tomli-w>=1.0.0", + "pytest-timeout", + 'pytest-perf; sys_platform != "cygwin"', # workaround for jaraco/inflect#195, pydantic/pydantic-core#773 (see #3986) + # for tools/finalize.py + 'jaraco.develop >= 7.21; python_version >= "3.9" and sys_platform != "cygwin"', + "pytest-home >= 0.5", + "pytest-subprocess", + + # workaround for pypa/pyproject-hooks#206 + "pyproject-hooks!=1.1", + + "jaraco.test>=5.5", # py.typed +] + +doc = [ + # upstream + "sphinx >= 3.5", + "jaraco.packaging >= 9.3", + "rst.linker >= 1.9", + "furo", + "sphinx-lint", + + # tidelift + "jaraco.tidelift >= 1.4", + + # local + "pygments-github-lexers==0.0.5", + "sphinx-favicon", + "sphinx-inline-tabs", + "sphinx-reredirects", + "sphinxcontrib-towncrier", + "sphinx-notfound-page >=1,<2", + + # workaround for pypa/setuptools#4333 + "pyproject-hooks!=1.1", + + # workaround for sphinx-contrib/sphinxcontrib-towncrier#92 + "towncrier<24.7", +] +ssl = [] +certs = [] +core = [ + "packaging>=24.2", + "more_itertools>=8.8", + "jaraco.text>=3.7", + "importlib_metadata>=6; python_version < '3.10'", + "tomli>=2.0.1; python_version < '3.11'", + "wheel>=0.43.0", + + # pkg_resources + "platformdirs >= 4.2.2", # Made ctypes optional (see #4461) + + # for distutils + "jaraco.functools >= 4", + "more_itertools", +] + +check = [ + # upstream + "pytest-checkdocs >= 2.4", + "pytest-ruff >= 0.2.1; sys_platform != 'cygwin'", + + # local + + # Removal of deprecated UP027, PT004 & PT005 astral-sh/ruff#14383 + "ruff >= 0.8.0; sys_platform != 'cygwin'", +] + +cover = [ + "pytest-cov", +] + +enabler = [ + "pytest-enabler >= 2.2", +] + +type = [ + # upstream + "pytest-mypy", + + # local + + # pin mypy version so a new version doesn't suddenly cause the CI to fail, + # until types-setuptools is removed from typeshed. + # For help with static-typing issues, or mypy update, ping @Avasam + "mypy==1.14.*", + # Typing fixes in version newer than we require at runtime + "importlib_metadata>=7.0.2; python_version < '3.10'", + # Imported unconditionally in tools/finalize.py + 'jaraco.develop >= 7.21; sys_platform != "cygwin"', +] + + +[project.entry-points."distutils.commands"] +alias = "setuptools.command.alias:alias" +bdist_egg = "setuptools.command.bdist_egg:bdist_egg" +bdist_rpm = "setuptools.command.bdist_rpm:bdist_rpm" +bdist_wheel = "setuptools.command.bdist_wheel:bdist_wheel" +build = "setuptools.command.build:build" +build_clib = "setuptools.command.build_clib:build_clib" +build_ext = "setuptools.command.build_ext:build_ext" +build_py = "setuptools.command.build_py:build_py" +develop = "setuptools.command.develop:develop" +dist_info = "setuptools.command.dist_info:dist_info" +easy_install = "setuptools.command.easy_install:easy_install" +editable_wheel = "setuptools.command.editable_wheel:editable_wheel" +egg_info = "setuptools.command.egg_info:egg_info" +install = "setuptools.command.install:install" +install_egg_info = "setuptools.command.install_egg_info:install_egg_info" +install_lib = "setuptools.command.install_lib:install_lib" +install_scripts = "setuptools.command.install_scripts:install_scripts" +rotate = "setuptools.command.rotate:rotate" +saveopts = "setuptools.command.saveopts:saveopts" +sdist = "setuptools.command.sdist:sdist" +setopt = "setuptools.command.setopt:setopt" + +[project.entry-points."setuptools.finalize_distribution_options"] +parent_finalize = "setuptools.dist:_Distribution.finalize_options" +keywords = "setuptools.dist:Distribution._finalize_setup_keywords" + +[project.entry-points."distutils.setup_keywords"] +eager_resources = "setuptools.dist:assert_string_list" +namespace_packages = "setuptools.dist:check_nsp" +extras_require = "setuptools.dist:check_extras" +install_requires = "setuptools.dist:check_requirements" +setup_requires = "setuptools.dist:check_requirements" +python_requires = "setuptools.dist:check_specifier" +entry_points = "setuptools.dist:check_entry_points" +zip_safe = "setuptools.dist:assert_bool" +package_data = "setuptools.dist:check_package_data" +exclude_package_data = "setuptools.dist:check_package_data" +include_package_data = "setuptools.dist:assert_bool" +packages = "setuptools.dist:check_packages" +dependency_links = "setuptools.dist:assert_string_list" +use_2to3 = "setuptools.dist:invalid_unless_false" + +[project.entry-points."egg_info.writers"] +PKG-INFO = "setuptools.command.egg_info:write_pkg_info" +"requires.txt" = "setuptools.command.egg_info:write_requirements" +"entry_points.txt" = "setuptools.command.egg_info:write_entries" +"eager_resources.txt" = "setuptools.command.egg_info:overwrite_arg" +"namespace_packages.txt" = "setuptools.command.egg_info:overwrite_arg" +"top_level.txt" = "setuptools.command.egg_info:write_toplevel_names" +"dependency_links.txt" = "setuptools.command.egg_info:overwrite_arg" + +[tool.setuptools] +include-package-data = true + +[tool.setuptools.packages.find] +include = [ + "setuptools*", + "pkg_resources*", + "_distutils_hack*", +] +exclude = [ + "*.tests", + "*.tests.*", +] +namespaces = true + +[tool.setuptools.exclude-package-data] +# Remove ruff.toml when installing vendored packages (#4652) +"*" = ["ruff.toml"] + +[tool.distutils.sdist] +formats = "zip" + + +[tool.setuptools_scm] diff --git a/pyrightconfig.json b/pyrightconfig.json new file mode 100644 index 0000000000..da3cd978ce --- /dev/null +++ b/pyrightconfig.json @@ -0,0 +1,32 @@ +{ + "$schema": "https://raw.githubusercontent.com/microsoft/pyright/main/packages/vscode-pyright/schemas/pyrightconfig.schema.json", + "exclude": [ + // Avoid scanning Python files in generated folders + "build", + ".tox", + ".eggs", + "setuptools/config/_validate_pyproject/**", + // These are vendored + "**/_vendor", + "setuptools/_distutils", + ], + // Our testing setup doesn't allow passing CLI arguments, so local devs have to set this manually. + // "pythonVersion": "3.9", + // For now we don't mind if mypy's `type: ignore` comments accidentally suppresses pyright issues + "enableTypeIgnoreComments": true, + "typeCheckingMode": "basic", + // Too many issues caused by dynamic patching, still worth fixing when we can + "reportAttributeAccessIssue": "warning", + // Fails on Python 3.12 due to missing distutils + "reportMissingImports": "warning", + // FIXME: A handful of reportOperatorIssue spread throughout the codebase + "reportOperatorIssue": "warning", + // Deferred initialization (initialize_options/finalize_options) causes many "potentially None" issues + // TODO: Fix with type-guards, by changing how it's initialized, or by casting initial assignments + "reportArgumentType": "warning", + "reportCallIssue": "warning", + "reportGeneralTypeIssues": "warning", + "reportOptionalIterable": "warning", + "reportOptionalMemberAccess": "warning", + "reportOptionalOperand": "warning", +} diff --git a/pytest.ini b/pytest.ini new file mode 100644 index 0000000000..b6efa6f918 --- /dev/null +++ b/pytest.ini @@ -0,0 +1,97 @@ +[pytest] +norecursedirs=dist build .tox .eggs +addopts= + --doctest-modules + --import-mode importlib + --doctest-glob=pkg_resources/api_tests.txt +consider_namespace_packages=true +filterwarnings= + # Fail on warnings + error + + # Workarounds for pypa/setuptools#3810 + # Can't use EncodingWarning as it doesn't exist on Python 3.9. + # These warnings only appear on Python 3.10+ + + ## upstream + + # Ensure ResourceWarnings are emitted + default::ResourceWarning + + # python/mypy#17057 + ignore:'encoding' argument not specified::mypy + ignore:'encoding' argument not specified::configparser + # ^-- ConfigParser is called by mypy, + # but ignoring the warning in `mypy` is not enough + # to make it work on PyPy + + # realpython/pytest-mypy#152 + ignore:'encoding' argument not specified::pytest_mypy + + # TODO: Set encoding when opening/writing tmpdir files with pytest's LocalPath.open + # see pypa/setuptools#4326 + ignore:'encoding' argument not specified::_pytest + + # Already fixed in pypa/distutils, but present in stdlib + ignore:'encoding' argument not specified::distutils + + ## end upstream + + # https://github.com/pypa/setuptools/issues/1823 + ignore:bdist_wininst command is deprecated + # Suppress this error; unimportant for CI tests + ignore:Extraction path is writable by group/others:UserWarning + # Suppress weird RuntimeWarning. + ignore:Parent module 'setuptools' not found while handling absolute import:RuntimeWarning + # Suppress use of bytes for filenames on Windows until fixed #2016 + ignore:The Windows bytes API has been deprecated:DeprecationWarning + + # https://github.com/pypa/setuptools/issues/2823 + ignore:setuptools.installer and fetch_build_eggs are deprecated. + + # https://github.com/pypa/setuptools/issues/917 + ignore:setup.py install is deprecated. + ignore:easy_install command is deprecated. + ignore:develop command is deprecated. + + # https://github.com/pypa/setuptools/issues/2497 + ignore:.* is an invalid version and will not be supported::pkg_resources + + # https://github.com/pypa/setuptools/pull/2865#issuecomment-965700112 + # ideally would apply to Python 3.10+ when + # SETUPTOOLS_USE_DISTUTILS=stdlib but for + # https://github.com/pytest-dev/pytest/discussions/9296 + ignore:The distutils.sysconfig module is deprecated, use sysconfig instead + ignore:The distutils package is deprecated.* + + # Workaround for pypa/setuptools#2868 + # ideally would apply to PyPy only but for + # https://github.com/pytest-dev/pytest/discussions/9296 + ignore:Distutils was imported before setuptools + ignore:Setuptools is replacing distutils + + # suppress warnings in deprecated msvc compilers + ignore:(bcpp|msvc9?)compiler is deprecated + + # Ignore warnings about deprecated stdlib distutils pypa/setuptools#4137 + ignore:Reliance on distutils from stdlib is deprecated + + ignore::setuptools.command.editable_wheel.InformationOnly + + # https://github.com/pypa/setuptools/issues/3655 + ignore:The --rsyncdir command line argument and rsyncdirs config variable are deprecated.:DeprecationWarning + + # Avoid errors when testing pkg_resources.declare_namespace + ignore:.*pkg_resources\.declare_namespace.*:DeprecationWarning + + # suppress known deprecation + ignore:pkg_resources is deprecated:DeprecationWarning + + # Dependencies might not have been updated yet + default:onerror argument is deprecated, use onexc instead + + # Ignore warnings about experimental features + ignore:..tool\.distutils.. in .pyproject\.toml. is still .experimental.* + + # Ignore warnings about consider_namespace_packages (jaraco/skeleton@6ff02e0eefcd) + ignore:Unknown config option. consider_namespace_packages:pytest.PytestConfigWarning diff --git a/release.sh b/release.sh deleted file mode 100755 index 344114aef8..0000000000 --- a/release.sh +++ /dev/null @@ -1,25 +0,0 @@ -#!/bin/sh - -export VERSION="0.6" - -# creating the releases -rm -rf dist - -# eggs -python2.3 setup.py -q egg_info -RDb '' bdist_egg # manual upload -python2.4 setup.py -q egg_info -RDb '' bdist_egg # manual upload -python2.5 setup.py -q egg_info -RDb '' bdist_egg register upload -python2.6 setup.py -q egg_info -RDb '' bdist_egg register upload - -# updating the md5 hashes -python distribute_setup.py --md5update dist/distribute-$VERSION-py2.3.egg -python distribute_setup.py --md5update dist/distribute-$VERSION-py2.4.egg -python distribute_setup.py --md5update dist/distribute-$VERSION-py2.5.egg -python distribute_setup.py --md5update dist/distribute-$VERSION-py2.6.egg - -# now preparing the source release -python2.6 setup.py -q egg_info -RDb '' sdist register upload - -echo You need to commit the md5 changes - - diff --git a/ruff.toml b/ruff.toml new file mode 100644 index 0000000000..349d22cebd --- /dev/null +++ b/ruff.toml @@ -0,0 +1,94 @@ +exclude = [ + "**/_vendor", + "setuptools/_distutils", + "setuptools/config/_validate_pyproject", +] + +[lint] +extend-select = [ + # upstream + + "C901", # complex-structure + "I", # isort + "PERF401", # manual-list-comprehension + + # Ensure modern type annotation syntax and best practices + # Not including those covered by type-checkers or exclusive to Python 3.11+ + "FA", # flake8-future-annotations + "F404", # late-future-import + "PYI", # flake8-pyi + "UP006", # non-pep585-annotation + "UP007", # non-pep604-annotation + "UP010", # unnecessary-future-import + "UP035", # deprecated-import + "UP037", # quoted-annotation + "UP043", # unnecessary-default-type-args + + # local + "ANN2", # missing-return-type-* + "PERF", # Perflint + "PGH", # pygrep-hooks (blanket-* rules) + "PT", # flake8-pytest-style + "RUF10", # unused-noqa & redirected-noqa + "TRY", # tryceratops + "UP", # pyupgrade + "YTT", # flake8-2020 +] +ignore = [ + # upstream + + # Typeshed rejects complex or non-literal defaults for maintenance and testing reasons, + # irrelevant to this project. + "PYI011", # typed-argument-default-in-stub + # https://docs.astral.sh/ruff/formatter/#conflicting-lint-rules + "W191", + "E111", + "E114", + "E117", + "D206", + "D300", + "Q000", + "Q001", + "Q002", + "Q003", + "COM812", + "COM819", + + # local + "PERF203", # try-except-in-loop, micro-optimisation with many false-positive. Worth checking but don't block CI + "PT007", # temporarily disabled, TODO: configure and standardize to preference + "PT011", # temporarily disabled, TODO: tighten expected error + "PT012", # pytest-raises-with-multiple-statements, avoid extra dummy methods for a few lines, sometimes we explicitly assert in case of no error + "TRY003", # raise-vanilla-args, avoid multitude of exception classes + "TRY301", # raise-within-try, it's handy + "UP015", # redundant-open-modes, explicit is preferred + "UP038", # Using `X | Y` in `isinstance` call is slower and more verbose https://github.com/astral-sh/ruff/issues/7871 + # Only enforcing return type annotations for public functions + "ANN202", # missing-return-type-private-function + "ANN204", # missing-return-type-special-method +] + +[lint.per-file-ignores] +# Suppress nuisance warnings about module-import-not-at-top-of-file (E402) due to workaround for #4476 +"setuptools/__init__.py" = ["E402"] +"pkg_resources/__init__.py" = ["E402"] + +[lint.isort] +combine-as-imports = true +split-on-trailing-comma = false +# Force Ruff/isort to always import setuptools before distutils in tests as long as distutils_hack is supported +# This also ensures _distutils_hack is imported before distutils +# https://github.com/pypa/setuptools/issues/4137 +section-order = ["future", "standard-library", "eager", "third-party", "first-party", "local-folder", "delayed"] +sections.eager = ["_distutils_hack"] +sections.delayed = ["distutils"] + +[lint.flake8-annotations] +ignore-fully-untyped = true + +[format] +# Enable preview to get hugged parenthesis unwrapping and other nice surprises +# See https://github.com/jaraco/skeleton/pull/133#issuecomment-2239538373 +preview = true +# https://docs.astral.sh/ruff/settings/#format_quote-style +quote-style = "preserve" diff --git a/setup.cfg b/setup.cfg old mode 100755 new mode 100644 index f7811000a3..38922089ad --- a/setup.cfg +++ b/setup.cfg @@ -1,8 +1,3 @@ [egg_info] -tag_build = dev -tag_svn_revision = 1 - -[aliases] -release = egg_info -RDb '' -source = register sdist binary -binary = bdist_egg upload --show-response +tag_build = .post +tag_date = 1 diff --git a/setup.py b/setup.py index 4deaa1f628..c28a14e722 100755 --- a/setup.py +++ b/setup.py @@ -1,107 +1,94 @@ #!/usr/bin/env python -"""Distutils setup file, used to install or test 'setuptools'""" -from distutils.util import convert_path +import os +import sys +import textwrap -d = {} -init_path = convert_path('setuptools/command/__init__.py') -exec(open(init_path).read(), d) +import setuptools +from setuptools.command.install import install -SETUP_COMMANDS = d['__all__'] -VERSION = "0.6" +here = os.path.dirname(__file__) + + +package_data = { + "": ["LICEN[CS]E*", "COPYING*", "NOTICE*", "AUTHORS*"], + "setuptools": ['script (dev).tmpl', 'script.tmpl', 'site-patch.py'], +} + +force_windows_specific_files = os.environ.get( + "SETUPTOOLS_INSTALL_WINDOWS_SPECIFIC_FILES", "1" +).lower() not in ("", "0", "false", "no") + +include_windows_files = sys.platform == 'win32' or force_windows_specific_files + +if include_windows_files: + package_data.setdefault('setuptools', []).extend(['*.exe']) + package_data.setdefault('setuptools.command', []).extend(['*.xml']) + + +def pypi_link(pkg_filename): + """ + Given the filename, including md5 fragment, construct the + dependency link for PyPI. + """ + root = 'https://files.pythonhosted.org/packages/source' + name, _sep, _rest = pkg_filename.partition('-') + parts = root, name[0], name, pkg_filename + return '/'.join(parts) -from setuptools import setup, find_packages -import sys -scripts = [] - -# if we are installing Distribute using "python setup.py install" -# we need to get setuptools out of the way -if 'install' in sys.argv[1:]: - from distribute_setup import before_install - before_install() - -dist = setup( - name="distribute", - version=VERSION, - description="Download, build, install, upgrade, and uninstall Python " - "packages -- easily!", - author="The fellowship of the packaging", - author_email="distutils-sig@python.org", - license="PSF or ZPL", - long_description = open('README.txt').read() + open('CHANGES.txt').read(), - keywords = "CPAN PyPI distutils eggs package management", - url = "http://pypi.python.org/pypi/distribute", - test_suite = 'setuptools.tests', - packages = find_packages(), - package_data = {'setuptools':['*.exe']}, - - py_modules = ['pkg_resources', 'easy_install', 'site'], - - zip_safe = (sys.version>="2.5"), # <2.5 needs unzipped for -m to work - - entry_points = { - - "distutils.commands" : [ - "%(cmd)s = setuptools.command.%(cmd)s:%(cmd)s" % locals() - for cmd in SETUP_COMMANDS - ], - - "distutils.setup_keywords": [ - "eager_resources = setuptools.dist:assert_string_list", - "namespace_packages = setuptools.dist:check_nsp", - "extras_require = setuptools.dist:check_extras", - "install_requires = setuptools.dist:check_requirements", - "tests_require = setuptools.dist:check_requirements", - "entry_points = setuptools.dist:check_entry_points", - "test_suite = setuptools.dist:check_test_suite", - "zip_safe = setuptools.dist:assert_bool", - "package_data = setuptools.dist:check_package_data", - "exclude_package_data = setuptools.dist:check_package_data", - "include_package_data = setuptools.dist:assert_bool", - "dependency_links = setuptools.dist:assert_string_list", - "test_loader = setuptools.dist:check_importable", - ], - - "egg_info.writers": [ - "PKG-INFO = setuptools.command.egg_info:write_pkg_info", - "requires.txt = setuptools.command.egg_info:write_requirements", - "entry_points.txt = setuptools.command.egg_info:write_entries", - "eager_resources.txt = setuptools.command.egg_info:overwrite_arg", - "namespace_packages.txt = setuptools.command.egg_info:overwrite_arg", - "top_level.txt = setuptools.command.egg_info:write_toplevel_names", - "depends.txt = setuptools.command.egg_info:warn_depends_obsolete", - "dependency_links.txt = setuptools.command.egg_info:overwrite_arg", - ], - - "console_scripts": [ - "easy_install = setuptools.command.easy_install:main", - "easy_install-%s = setuptools.command.easy_install:main" - % sys.version[:3] - ], - - "setuptools.file_finders": - ["svn_cvs = setuptools.command.sdist:_default_revctrl"], - - "setuptools.installation": - ['eggsecutable = setuptools.command.easy_install:bootstrap'], - }, - - - classifiers = [f.strip() for f in """ - Development Status :: 5 - Production/Stable - Intended Audience :: Developers - License :: OSI Approved :: Python Software Foundation License - License :: OSI Approved :: Zope Public License - Operating System :: OS Independent - Programming Language :: Python - Topic :: Software Development :: Libraries :: Python Modules - Topic :: System :: Archiving :: Packaging - Topic :: System :: Systems Administration - Topic :: Utilities""".splitlines() if f.strip()], - scripts = scripts, -) -if 'install' in sys.argv[1:]: - from distribute_setup import after_install - after_install(dist) +class install_with_pth(install): + """ + Custom install command to install a .pth file for distutils patching. + + This hack is necessary because there's no standard way to install behavior + on startup (and it's debatable if there should be one). This hack (ab)uses + the `extra_path` behavior in Setuptools to install a `.pth` file with + implicit behavior on startup to give higher precedence to the local version + of `distutils` over the version from the standard library. + + Please do not replicate this behavior. + """ + + _pth_name = 'distutils-precedence' + _pth_contents = ( + textwrap.dedent( + """ + import os + var = 'SETUPTOOLS_USE_DISTUTILS' + enabled = os.environ.get(var, 'local') == 'local' + enabled and __import__('_distutils_hack').add_shim() + """ + ) + .lstrip() + .replace('\n', '; ') + ) + + def initialize_options(self): + install.initialize_options(self) + self.extra_path = self._pth_name, self._pth_contents + + def finalize_options(self): + install.finalize_options(self) + self._restore_install_lib() + + def _restore_install_lib(self): + """ + Undo secondary effect of `extra_path` adding to `install_lib` + """ + suffix = os.path.relpath(self.install_lib, self.install_libbase) + + if suffix.strip() == self._pth_contents.strip(): + self.install_lib = self.install_libbase + + +setup_params = dict( + cmdclass={'install': install_with_pth}, + package_data=package_data, +) +if __name__ == '__main__': + # allow setup.py to run from another directory + # TODO: Use a proper conditional statement here + here and os.chdir(here) # type: ignore[func-returns-value] + dist = setuptools.setup(**setup_params) diff --git a/setuptools/__init__.py b/setuptools/__init__.py index aaf634dae6..64464dfaa3 100644 --- a/setuptools/__init__.py +++ b/setuptools/__init__.py @@ -1,91 +1,286 @@ """Extensions to the 'distutils' for large or complex distributions""" -from setuptools.extension import Extension, Library -from setuptools.dist import Distribution, Feature, _get_unpatched -import distutils.core, setuptools.command -from setuptools.depends import Require -from distutils.core import Command as _Command -from distutils.util import convert_path -import os.path - -__version__ = '0.6' +# mypy: disable_error_code=override +# Command.reinitialize_command has an extra **kw param that distutils doesn't have +# Can't disable on the exact line because distutils doesn't exists on Python 3.12 +# and mypy isn't aware of distutils_hack, causing distutils.core.Command to be Any, +# and a [unused-ignore] to be raised on 3.12+ + +from __future__ import annotations + +import functools +import os +import re +import sys +from abc import abstractmethod +from collections.abc import Mapping +from typing import TYPE_CHECKING, TypeVar, overload + +sys.path.extend(((vendor_path := os.path.join(os.path.dirname(os.path.dirname(__file__)), 'setuptools', '_vendor')) not in sys.path) * [vendor_path]) # fmt: skip +# workaround for #4476 +sys.modules.pop('backports', None) + +import _distutils_hack.override # noqa: F401 + +from . import logging, monkey +from .depends import Require +from .discovery import PackageFinder, PEP420PackageFinder +from .dist import Distribution +from .extension import Extension +from .version import __version__ as __version__ +from .warnings import SetuptoolsDeprecationWarning + +import distutils.core +from distutils.errors import DistutilsOptionError + __all__ = [ - 'setup', 'Distribution', 'Feature', 'Command', 'Extension', 'Require', - 'find_packages' + 'setup', + 'Distribution', + 'Command', + 'Extension', + 'Require', + 'SetuptoolsDeprecationWarning', + 'find_packages', + 'find_namespace_packages', ] -# This marker is used to simplify the process that checks is the -# setuptools package was installed by the Setuptools project -# or by the Distribute project, in case Setuptools creates -# a distribution with the same version. -# -# The distribute_setup script for instance, will check if this -# attribute is present to decide wether to reinstall the package -_distribute = True +_CommandT = TypeVar("_CommandT", bound="_Command") bootstrap_install_from = None -def find_packages(where='.', exclude=()): - """Return a list all Python packages found within directory 'where' +find_packages = PackageFinder.find +find_namespace_packages = PEP420PackageFinder.find + + +def _install_setup_requires(attrs): + # Note: do not use `setuptools.Distribution` directly, as + # our PEP 517 backend patch `distutils.core.Distribution`. + class MinimalDistribution(distutils.core.Distribution): + """ + A minimal version of a distribution for supporting the + fetch_build_eggs interface. + """ + + def __init__(self, attrs: Mapping[str, object]) -> None: + _incl = 'dependency_links', 'setup_requires' + filtered = {k: attrs[k] for k in set(_incl) & set(attrs)} + super().__init__(filtered) + # Prevent accidentally triggering discovery with incomplete set of attrs + self.set_defaults._disable() + + def _get_project_config_files(self, filenames=None): + """Ignore ``pyproject.toml``, they are not related to setup_requires""" + try: + cfg, _toml = super()._split_standard_project_metadata(filenames) + except Exception: + return filenames, () + return cfg, () + + def finalize_options(self): + """ + Disable finalize_options to avoid building the working set. + Ref #2158. + """ + + dist = MinimalDistribution(attrs) + + # Honor setup.cfg's options. + dist.parse_config_files(ignore_option_errors=True) + if dist.setup_requires: + _fetch_build_eggs(dist) + + +def _fetch_build_eggs(dist: Distribution): + try: + dist.fetch_build_eggs(dist.setup_requires) + except Exception as ex: + msg = """ + It is possible a package already installed in your system + contains an version that is invalid according to PEP 440. + You can try `pip install --use-pep517` as a workaround for this problem, + or rely on a new virtual environment. + + If the problem refers to a package that is not installed yet, + please contact that package's maintainers or distributors. + """ + if "InvalidVersion" in ex.__class__.__name__: + if hasattr(ex, "add_note"): + ex.add_note(msg) # PEP 678 + else: + dist.announce(f"\n{msg}\n") + raise + + +def setup(**attrs): + logging.configure() + # Make sure we have any requirements needed to interpret 'attrs'. + _install_setup_requires(attrs) + return distutils.core.setup(**attrs) + + +setup.__doc__ = distutils.core.setup.__doc__ + +if TYPE_CHECKING: + # Work around a mypy issue where type[T] can't be used as a base: https://github.com/python/mypy/issues/10962 + from distutils.core import Command as _Command +else: + _Command = monkey.get_unpatched(distutils.core.Command) - 'where' should be supplied as a "cross-platform" (i.e. URL-style) path; it - will be converted to the appropriate local path syntax. 'exclude' is a - sequence of package names to exclude; '*' can be used as a wildcard in the - names, such that 'foo.*' will exclude all subpackages of 'foo' (but not - 'foo' itself). - """ - out = [] - stack=[(convert_path(where), '')] - while stack: - where,prefix = stack.pop(0) - for name in os.listdir(where): - fn = os.path.join(where,name) - if ('.' not in name and os.path.isdir(fn) and - os.path.isfile(os.path.join(fn,'__init__.py')) - ): - out.append(prefix+name); stack.append((fn,prefix+name+'.')) - for pat in list(exclude)+['ez_setup', 'distribute_setup']: - from fnmatch import fnmatchcase - out = [item for item in out if not fnmatchcase(item,pat)] - return out - -setup = distutils.core.setup - -_Command = _get_unpatched(_Command) class Command(_Command): - __doc__ = _Command.__doc__ + """ + Setuptools internal actions are organized using a *command design pattern*. + This means that each action (or group of closely related actions) executed during + the build should be implemented as a ``Command`` subclass. + + These commands are abstractions and do not necessarily correspond to a command that + can (or should) be executed via a terminal, in a CLI fashion (although historically + they would). + + When creating a new command from scratch, custom defined classes **SHOULD** inherit + from ``setuptools.Command`` and implement a few mandatory methods. + Between these mandatory methods, are listed: + :meth:`initialize_options`, :meth:`finalize_options` and :meth:`run`. + + A useful analogy for command classes is to think of them as subroutines with local + variables called "options". The options are "declared" in :meth:`initialize_options` + and "defined" (given their final values, aka "finalized") in :meth:`finalize_options`, + both of which must be defined by every command class. The "body" of the subroutine, + (where it does all the work) is the :meth:`run` method. + Between :meth:`initialize_options` and :meth:`finalize_options`, ``setuptools`` may set + the values for options/attributes based on user's input (or circumstance), + which means that the implementation should be careful to not overwrite values in + :meth:`finalize_options` unless necessary. + + Please note that other commands (or other parts of setuptools) may also overwrite + the values of the command's options/attributes multiple times during the build + process. + Therefore it is important to consistently implement :meth:`initialize_options` and + :meth:`finalize_options`. For example, all derived attributes (or attributes that + depend on the value of other attributes) **SHOULD** be recomputed in + :meth:`finalize_options`. + + When overwriting existing commands, custom defined classes **MUST** abide by the + same APIs implemented by the original class. They also **SHOULD** inherit from the + original class. + """ command_consumes_arguments = False + distribution: Distribution # override distutils.dist.Distribution with setuptools.dist.Distribution + + def __init__(self, dist: Distribution, **kw) -> None: + """ + Construct the command for dist, updating + vars(self) with any keyword parameters. + """ + super().__init__(dist) + vars(self).update(kw) + + def _ensure_stringlike(self, option, what, default=None): + val = getattr(self, option) + if val is None: + setattr(self, option, default) + return default + elif not isinstance(val, str): + raise DistutilsOptionError(f"'{option}' must be a {what} (got `{val}`)") + return val + + def ensure_string_list(self, option: str) -> None: + r"""Ensure that 'option' is a list of strings. If 'option' is + currently a string, we split it either on /,\s*/ or /\s+/, so + "foo bar baz", "foo,bar,baz", and "foo, bar baz" all become + ["foo", "bar", "baz"]. - def __init__(self, dist, **kw): - # Add support for keyword arguments - _Command.__init__(self,dist) - for k,v in kw.items(): - setattr(self,k,v) + .. + TODO: This method seems to be similar to the one in ``distutils.cmd`` + Probably it is just here for backward compatibility with old Python versions? - def reinitialize_command(self, command, reinit_subcommands=0, **kw): + :meta private: + """ + val = getattr(self, option) + if val is None: + return + elif isinstance(val, str): + setattr(self, option, re.split(r',\s*|\s+', val)) + else: + if isinstance(val, list): + ok = all(isinstance(v, str) for v in val) + else: + ok = False + if not ok: + raise DistutilsOptionError( + f"'{option}' must be a list of strings (got {val!r})" + ) + + @overload + def reinitialize_command( + self, command: str, reinit_subcommands: bool = False, **kw + ) -> _Command: ... + @overload + def reinitialize_command( + self, command: _CommandT, reinit_subcommands: bool = False, **kw + ) -> _CommandT: ... + def reinitialize_command( + self, command: str | _Command, reinit_subcommands: bool = False, **kw + ) -> _Command: cmd = _Command.reinitialize_command(self, command, reinit_subcommands) - for k,v in kw.items(): - setattr(cmd,k,v) # update command with keywords - return cmd + vars(cmd).update(kw) + return cmd # pyright: ignore[reportReturnType] # pypa/distutils#307 -import distutils.core -distutils.core.Command = Command # we can't patch distutils.cmd, alas + @abstractmethod + def initialize_options(self) -> None: + """ + Set or (reset) all options/attributes/caches used by the command + to their default values. Note that these values may be overwritten during + the build. + """ + raise NotImplementedError + + @abstractmethod + def finalize_options(self) -> None: + """ + Set final values for all options/attributes used by the command. + Most of the time, each option/attribute/cache should only be set if it does not + have any value yet (e.g. ``if self.attr is None: self.attr = val``). + """ + raise NotImplementedError -def findall(dir = os.curdir): - """Find all files under 'dir' and return the list of full filenames - (relative to 'dir'). + @abstractmethod + def run(self) -> None: + """ + Execute the actions intended by the command. + (Side effects **SHOULD** only take place when :meth:`run` is executed, + for example, creating new files or writing to the terminal output). + """ + raise NotImplementedError + + +def _find_all_simple(path): + """ + Find all files under 'path' """ - all_files = [] - for base, dirs, files in os.walk(dir): - if base==os.curdir or base.startswith(os.curdir+os.sep): - base = base[2:] - if base: - files = [os.path.join(base, f) for f in files] - all_files.extend(filter(os.path.isfile, files)) - return all_files + results = ( + os.path.join(base, file) + for base, dirs, files in os.walk(path, followlinks=True) + for file in files + ) + return filter(os.path.isfile, results) + + +def findall(dir=os.curdir): + """ + Find all files under 'dir' and return the list of full filenames. + Unless dir is '.', return full filenames with dir prepended. + """ + files = _find_all_simple(dir) + if dir == os.curdir: + make_rel = functools.partial(os.path.relpath, start=dir) + files = map(make_rel, files) + return list(files) + -import distutils.filelist -distutils.filelist.findall = findall # fix findall bug in distutils. +class sic(str): + """Treat this string as-is (https://en.wikipedia.org/wiki/Sic)""" +# Apply monkey patches +monkey.patch_all() diff --git a/setuptools/_core_metadata.py b/setuptools/_core_metadata.py new file mode 100644 index 0000000000..a52d5cf755 --- /dev/null +++ b/setuptools/_core_metadata.py @@ -0,0 +1,337 @@ +""" +Handling of Core Metadata for Python packages (including reading and writing). + +See: https://packaging.python.org/en/latest/specifications/core-metadata/ +""" + +from __future__ import annotations + +import os +import stat +import textwrap +from email import message_from_file +from email.message import Message +from tempfile import NamedTemporaryFile + +from packaging.markers import Marker +from packaging.requirements import Requirement +from packaging.utils import canonicalize_name, canonicalize_version +from packaging.version import Version + +from . import _normalization, _reqs +from ._static import is_static +from .warnings import SetuptoolsDeprecationWarning + +from distutils.util import rfc822_escape + + +def get_metadata_version(self): + mv = getattr(self, 'metadata_version', None) + if mv is None: + mv = Version('2.4') + self.metadata_version = mv + return mv + + +def rfc822_unescape(content: str) -> str: + """Reverse RFC-822 escaping by removing leading whitespaces from content.""" + lines = content.splitlines() + if len(lines) == 1: + return lines[0].lstrip() + return '\n'.join((lines[0].lstrip(), textwrap.dedent('\n'.join(lines[1:])))) + + +def _read_field_from_msg(msg: Message, field: str) -> str | None: + """Read Message header field.""" + value = msg[field] + if value == 'UNKNOWN': + return None + return value + + +def _read_field_unescaped_from_msg(msg: Message, field: str) -> str | None: + """Read Message header field and apply rfc822_unescape.""" + value = _read_field_from_msg(msg, field) + if value is None: + return value + return rfc822_unescape(value) + + +def _read_list_from_msg(msg: Message, field: str) -> list[str] | None: + """Read Message header field and return all results as list.""" + values = msg.get_all(field, None) + if values == []: + return None + return values + + +def _read_payload_from_msg(msg: Message) -> str | None: + value = str(msg.get_payload()).strip() + if value == 'UNKNOWN' or not value: + return None + return value + + +def read_pkg_file(self, file): + """Reads the metadata values from a file object.""" + msg = message_from_file(file) + + self.metadata_version = Version(msg['metadata-version']) + self.name = _read_field_from_msg(msg, 'name') + self.version = _read_field_from_msg(msg, 'version') + self.description = _read_field_from_msg(msg, 'summary') + # we are filling author only. + self.author = _read_field_from_msg(msg, 'author') + self.maintainer = None + self.author_email = _read_field_from_msg(msg, 'author-email') + self.maintainer_email = None + self.url = _read_field_from_msg(msg, 'home-page') + self.download_url = _read_field_from_msg(msg, 'download-url') + self.license = _read_field_unescaped_from_msg(msg, 'license') + self.license_expression = _read_field_unescaped_from_msg(msg, 'license-expression') + + self.long_description = _read_field_unescaped_from_msg(msg, 'description') + if self.long_description is None and self.metadata_version >= Version('2.1'): + self.long_description = _read_payload_from_msg(msg) + self.description = _read_field_from_msg(msg, 'summary') + + if 'keywords' in msg: + self.keywords = _read_field_from_msg(msg, 'keywords').split(',') + + self.platforms = _read_list_from_msg(msg, 'platform') + self.classifiers = _read_list_from_msg(msg, 'classifier') + + # PEP 314 - these fields only exist in 1.1 + if self.metadata_version == Version('1.1'): + self.requires = _read_list_from_msg(msg, 'requires') + self.provides = _read_list_from_msg(msg, 'provides') + self.obsoletes = _read_list_from_msg(msg, 'obsoletes') + else: + self.requires = None + self.provides = None + self.obsoletes = None + + self.license_files = _read_list_from_msg(msg, 'license-file') + + +def single_line(val): + """ + Quick and dirty validation for Summary pypa/setuptools#1390. + """ + if '\n' in val: + # TODO: Replace with `raise ValueError("newlines not allowed")` + # after reviewing #2893. + msg = "newlines are not allowed in `summary` and will break in the future" + SetuptoolsDeprecationWarning.emit("Invalid config.", msg) + # due_date is undefined. Controversial change, there was a lot of push back. + val = val.strip().split('\n')[0] + return val + + +def write_pkg_info(self, base_dir): + """Write the PKG-INFO file into the release tree.""" + temp = "" + final = os.path.join(base_dir, 'PKG-INFO') + try: + # Use a temporary file while writing to avoid race conditions + # (e.g. `importlib.metadata` reading `.egg-info/PKG-INFO`): + with NamedTemporaryFile("w", encoding="utf-8", dir=base_dir, delete=False) as f: + temp = f.name + self.write_pkg_file(f) + permissions = stat.S_IMODE(os.lstat(temp).st_mode) + os.chmod(temp, permissions | stat.S_IRGRP | stat.S_IROTH) + os.replace(temp, final) # atomic operation. + finally: + if temp and os.path.exists(temp): + os.remove(temp) + + +# Based on Python 3.5 version +def write_pkg_file(self, file): # noqa: C901 # is too complex (14) # FIXME + """Write the PKG-INFO format data to a file object.""" + version = self.get_metadata_version() + + def write_field(key, value): + file.write(f"{key}: {value}\n") + + write_field('Metadata-Version', str(version)) + write_field('Name', self.get_name()) + write_field('Version', self.get_version()) + + summary = self.get_description() + if summary: + write_field('Summary', single_line(summary)) + + optional_fields = ( + ('Home-page', 'url'), + ('Download-URL', 'download_url'), + ('Author', 'author'), + ('Author-email', 'author_email'), + ('Maintainer', 'maintainer'), + ('Maintainer-email', 'maintainer_email'), + ) + + for field, attr in optional_fields: + attr_val = getattr(self, attr, None) + if attr_val is not None: + write_field(field, attr_val) + + if license_expression := self.license_expression: + write_field('License-Expression', license_expression) + elif license := self.get_license(): + write_field('License', rfc822_escape(license)) + + for label, url in self.project_urls.items(): + write_field('Project-URL', f'{label}, {url}') + + keywords = ','.join(self.get_keywords()) + if keywords: + write_field('Keywords', keywords) + + platforms = self.get_platforms() or [] + for platform in platforms: + write_field('Platform', platform) + + self._write_list(file, 'Classifier', self.get_classifiers()) + + # PEP 314 + self._write_list(file, 'Requires', self.get_requires()) + self._write_list(file, 'Provides', self.get_provides()) + self._write_list(file, 'Obsoletes', self.get_obsoletes()) + + # Setuptools specific for PEP 345 + if hasattr(self, 'python_requires'): + write_field('Requires-Python', self.python_requires) + + # PEP 566 + if self.long_description_content_type: + write_field('Description-Content-Type', self.long_description_content_type) + + safe_license_files = map(_safe_license_file, self.license_files or []) + self._write_list(file, 'License-File', safe_license_files) + _write_requirements(self, file) + + for field, attr in _POSSIBLE_DYNAMIC_FIELDS.items(): + if (val := getattr(self, attr, None)) and not is_static(val): + write_field('Dynamic', field) + + long_description = self.get_long_description() + if long_description: + file.write(f"\n{long_description}") + if not long_description.endswith("\n"): + file.write("\n") + + +def _write_requirements(self, file): + for req in _reqs.parse(self.install_requires): + file.write(f"Requires-Dist: {req}\n") + + processed_extras = {} + for augmented_extra, reqs in self.extras_require.items(): + # Historically, setuptools allows "augmented extras": `:` + unsafe_extra, _, condition = augmented_extra.partition(":") + unsafe_extra = unsafe_extra.strip() + extra = _normalization.safe_extra(unsafe_extra) + + if extra: + _write_provides_extra(file, processed_extras, extra, unsafe_extra) + for req in _reqs.parse_strings(reqs): + r = _include_extra(req, extra, condition.strip()) + file.write(f"Requires-Dist: {r}\n") + + return processed_extras + + +def _include_extra(req: str, extra: str, condition: str) -> Requirement: + r = Requirement(req) # create a fresh object that can be modified + parts = ( + f"({r.marker})" if r.marker else None, + f"({condition})" if condition else None, + f"extra == {extra!r}" if extra else None, + ) + r.marker = Marker(" and ".join(x for x in parts if x)) + return r + + +def _write_provides_extra(file, processed_extras, safe, unsafe): + previous = processed_extras.get(safe) + if previous == unsafe: + SetuptoolsDeprecationWarning.emit( + 'Ambiguity during "extra" normalization for dependencies.', + f""" + {previous!r} and {unsafe!r} normalize to the same value:\n + {safe!r}\n + In future versions, setuptools might halt the build process. + """, + see_url="https://peps.python.org/pep-0685/", + ) + else: + processed_extras[safe] = unsafe + file.write(f"Provides-Extra: {safe}\n") + + +# from pypa/distutils#244; needed only until that logic is always available +def get_fullname(self): + return _distribution_fullname(self.get_name(), self.get_version()) + + +def _distribution_fullname(name: str, version: str) -> str: + """ + >>> _distribution_fullname('setup.tools', '1.0-2') + 'setup_tools-1.0.post2' + >>> _distribution_fullname('setup-tools', '1.2post2') + 'setup_tools-1.2.post2' + >>> _distribution_fullname('setup-tools', '1.0-r2') + 'setup_tools-1.0.post2' + >>> _distribution_fullname('setup.tools', '1.0.post') + 'setup_tools-1.0.post0' + >>> _distribution_fullname('setup.tools', '1.0+ubuntu-1') + 'setup_tools-1.0+ubuntu.1' + """ + return "{}-{}".format( + canonicalize_name(name).replace('-', '_'), + canonicalize_version(version, strip_trailing_zero=False), + ) + + +def _safe_license_file(file): + # XXX: Do we need this after the deprecation discussed in #4892, #4896?? + normalized = os.path.normpath(file).replace(os.sep, "/") + if "../" in normalized: + return os.path.basename(normalized) # Temporarily restore pre PEP639 behaviour + return normalized + + +_POSSIBLE_DYNAMIC_FIELDS = { + # Core Metadata Field x related Distribution attribute + "author": "author", + "author-email": "author_email", + "classifier": "classifiers", + "description": "long_description", + "description-content-type": "long_description_content_type", + "download-url": "download_url", + "home-page": "url", + "keywords": "keywords", + "license": "license", + # XXX: License-File is complicated because the user gives globs that are expanded + # during the build. Without special handling it is likely always + # marked as Dynamic, which is an acceptable outcome according to: + # https://github.com/pypa/setuptools/issues/4629#issuecomment-2331233677 + "license-file": "license_files", + "license-expression": "license_expression", # PEP 639 + "maintainer": "maintainer", + "maintainer-email": "maintainer_email", + "obsoletes": "obsoletes", + # "obsoletes-dist": "obsoletes_dist", # NOT USED + "platform": "platforms", + "project-url": "project_urls", + "provides": "provides", + # "provides-dist": "provides_dist", # NOT USED + "provides-extra": "extras_require", + "requires": "requires", + "requires-dist": "install_requires", + # "requires-external": "requires_external", # NOT USED + "requires-python": "python_requires", + "summary": "description", + # "supported-platform": "supported_platforms", # NOT USED +} diff --git a/setuptools/_distutils/__init__.py b/setuptools/_distutils/__init__.py new file mode 100644 index 0000000000..e374d5c560 --- /dev/null +++ b/setuptools/_distutils/__init__.py @@ -0,0 +1,14 @@ +import importlib +import sys + +__version__, _, _ = sys.version.partition(' ') + + +try: + # Allow Debian and pkgsrc (only) to customize system + # behavior. Ref pypa/distutils#2 and pypa/distutils#16. + # This hook is deprecated and no other environments + # should use it. + importlib.import_module('_distutils_system_mod') +except ImportError: + pass diff --git a/setuptools/_distutils/_log.py b/setuptools/_distutils/_log.py new file mode 100644 index 0000000000..0148f157ff --- /dev/null +++ b/setuptools/_distutils/_log.py @@ -0,0 +1,3 @@ +import logging + +log = logging.getLogger() diff --git a/setuptools/_distutils/_macos_compat.py b/setuptools/_distutils/_macos_compat.py new file mode 100644 index 0000000000..76ecb96abe --- /dev/null +++ b/setuptools/_distutils/_macos_compat.py @@ -0,0 +1,12 @@ +import importlib +import sys + + +def bypass_compiler_fixup(cmd, args): + return cmd + + +if sys.platform == 'darwin': + compiler_fixup = importlib.import_module('_osx_support').compiler_fixup +else: + compiler_fixup = bypass_compiler_fixup diff --git a/setuptools/_distutils/_modified.py b/setuptools/_distutils/_modified.py new file mode 100644 index 0000000000..f64cab7d61 --- /dev/null +++ b/setuptools/_distutils/_modified.py @@ -0,0 +1,95 @@ +"""Timestamp comparison of files and groups of files.""" + +from __future__ import annotations + +import functools +import os.path +from collections.abc import Callable, Iterable +from typing import Literal, TypeVar + +from jaraco.functools import splat + +from .compat.py39 import zip_strict +from .errors import DistutilsFileError + +_SourcesT = TypeVar( + "_SourcesT", bound="str | bytes | os.PathLike[str] | os.PathLike[bytes]" +) +_TargetsT = TypeVar( + "_TargetsT", bound="str | bytes | os.PathLike[str] | os.PathLike[bytes]" +) + + +def _newer(source, target): + return not os.path.exists(target) or ( + os.path.getmtime(source) > os.path.getmtime(target) + ) + + +def newer( + source: str | bytes | os.PathLike[str] | os.PathLike[bytes], + target: str | bytes | os.PathLike[str] | os.PathLike[bytes], +) -> bool: + """ + Is source modified more recently than target. + + Returns True if 'source' is modified more recently than + 'target' or if 'target' does not exist. + + Raises DistutilsFileError if 'source' does not exist. + """ + if not os.path.exists(source): + raise DistutilsFileError(f"file {os.path.abspath(source)!r} does not exist") + + return _newer(source, target) + + +def newer_pairwise( + sources: Iterable[_SourcesT], + targets: Iterable[_TargetsT], + newer: Callable[[_SourcesT, _TargetsT], bool] = newer, +) -> tuple[list[_SourcesT], list[_TargetsT]]: + """ + Filter filenames where sources are newer than targets. + + Walk two filename iterables in parallel, testing if each source is newer + than its corresponding target. Returns a pair of lists (sources, + targets) where source is newer than target, according to the semantics + of 'newer()'. + """ + newer_pairs = filter(splat(newer), zip_strict(sources, targets)) + return tuple(map(list, zip(*newer_pairs))) or ([], []) + + +def newer_group( + sources: Iterable[str | bytes | os.PathLike[str] | os.PathLike[bytes]], + target: str | bytes | os.PathLike[str] | os.PathLike[bytes], + missing: Literal["error", "ignore", "newer"] = "error", +) -> bool: + """ + Is target out-of-date with respect to any file in sources. + + Return True if 'target' is out-of-date with respect to any file + listed in 'sources'. In other words, if 'target' exists and is newer + than every file in 'sources', return False; otherwise return True. + ``missing`` controls how to handle a missing source file: + + - error (default): allow the ``stat()`` call to fail. + - ignore: silently disregard any missing source files. + - newer: treat missing source files as "target out of date". This + mode is handy in "dry-run" mode: it will pretend to carry out + commands that wouldn't work because inputs are missing, but + that doesn't matter because dry-run won't run the commands. + """ + + def missing_as_newer(source): + return missing == 'newer' and not os.path.exists(source) + + ignored = os.path.exists if missing == 'ignore' else None + return not os.path.exists(target) or any( + missing_as_newer(source) or _newer(source, target) + for source in filter(ignored, sources) + ) + + +newer_pairwise_group = functools.partial(newer_pairwise, newer=newer_group) diff --git a/setuptools/_distutils/_msvccompiler.py b/setuptools/_distutils/_msvccompiler.py new file mode 100644 index 0000000000..d07c86ef8e --- /dev/null +++ b/setuptools/_distutils/_msvccompiler.py @@ -0,0 +1,16 @@ +import warnings + +from .compilers.C import msvc + +__all__ = ["MSVCCompiler"] + +MSVCCompiler = msvc.Compiler + + +def __getattr__(name): + if name == '_get_vc_env': + warnings.warn( + "_get_vc_env is private; find an alternative (pypa/distutils#340)" + ) + return msvc._get_vc_env + raise AttributeError(name) diff --git a/setuptools/_distutils/archive_util.py b/setuptools/_distutils/archive_util.py new file mode 100644 index 0000000000..d860f55272 --- /dev/null +++ b/setuptools/_distutils/archive_util.py @@ -0,0 +1,294 @@ +"""distutils.archive_util + +Utility functions for creating archive files (tarballs, zip files, +that sort of thing).""" + +from __future__ import annotations + +import os +from typing import Literal, overload + +try: + import zipfile +except ImportError: + zipfile = None + + +from ._log import log +from .dir_util import mkpath +from .errors import DistutilsExecError +from .spawn import spawn + +try: + from pwd import getpwnam +except ImportError: + getpwnam = None + +try: + from grp import getgrnam +except ImportError: + getgrnam = None + + +def _get_gid(name): + """Returns a gid, given a group name.""" + if getgrnam is None or name is None: + return None + try: + result = getgrnam(name) + except KeyError: + result = None + if result is not None: + return result[2] + return None + + +def _get_uid(name): + """Returns an uid, given a user name.""" + if getpwnam is None or name is None: + return None + try: + result = getpwnam(name) + except KeyError: + result = None + if result is not None: + return result[2] + return None + + +def make_tarball( + base_name: str, + base_dir: str | os.PathLike[str], + compress: Literal["gzip", "bzip2", "xz"] | None = "gzip", + verbose: bool = False, + dry_run: bool = False, + owner: str | None = None, + group: str | None = None, +) -> str: + """Create a (possibly compressed) tar file from all the files under + 'base_dir'. + + 'compress' must be "gzip" (the default), "bzip2", "xz", or None. + + 'owner' and 'group' can be used to define an owner and a group for the + archive that is being built. If not provided, the current owner and group + will be used. + + The output tar file will be named 'base_dir' + ".tar", possibly plus + the appropriate compression extension (".gz", ".bz2", ".xz" or ".Z"). + + Returns the output filename. + """ + tar_compression = { + 'gzip': 'gz', + 'bzip2': 'bz2', + 'xz': 'xz', + None: '', + } + compress_ext = {'gzip': '.gz', 'bzip2': '.bz2', 'xz': '.xz'} + + # flags for compression program, each element of list will be an argument + if compress is not None and compress not in compress_ext.keys(): + raise ValueError( + "bad value for 'compress': must be None, 'gzip', 'bzip2', 'xz'" + ) + + archive_name = base_name + '.tar' + archive_name += compress_ext.get(compress, '') + + mkpath(os.path.dirname(archive_name), dry_run=dry_run) + + # creating the tarball + import tarfile # late import so Python build itself doesn't break + + log.info('Creating tar archive') + + uid = _get_uid(owner) + gid = _get_gid(group) + + def _set_uid_gid(tarinfo): + if gid is not None: + tarinfo.gid = gid + tarinfo.gname = group + if uid is not None: + tarinfo.uid = uid + tarinfo.uname = owner + return tarinfo + + if not dry_run: + tar = tarfile.open(archive_name, f'w|{tar_compression[compress]}') + try: + tar.add(base_dir, filter=_set_uid_gid) + finally: + tar.close() + + return archive_name + + +def make_zipfile( # noqa: C901 + base_name: str, + base_dir: str | os.PathLike[str], + verbose: bool = False, + dry_run: bool = False, +) -> str: + """Create a zip file from all the files under 'base_dir'. + + The output zip file will be named 'base_name' + ".zip". Uses either the + "zipfile" Python module (if available) or the InfoZIP "zip" utility + (if installed and found on the default search path). If neither tool is + available, raises DistutilsExecError. Returns the name of the output zip + file. + """ + zip_filename = base_name + ".zip" + mkpath(os.path.dirname(zip_filename), dry_run=dry_run) + + # If zipfile module is not available, try spawning an external + # 'zip' command. + if zipfile is None: + if verbose: + zipoptions = "-r" + else: + zipoptions = "-rq" + + try: + spawn(["zip", zipoptions, zip_filename, base_dir], dry_run=dry_run) + except DistutilsExecError: + # XXX really should distinguish between "couldn't find + # external 'zip' command" and "zip failed". + raise DistutilsExecError( + f"unable to create zip file '{zip_filename}': " + "could neither import the 'zipfile' module nor " + "find a standalone zip utility" + ) + + else: + log.info("creating '%s' and adding '%s' to it", zip_filename, base_dir) + + if not dry_run: + try: + zip = zipfile.ZipFile( + zip_filename, "w", compression=zipfile.ZIP_DEFLATED + ) + except RuntimeError: + zip = zipfile.ZipFile(zip_filename, "w", compression=zipfile.ZIP_STORED) + + with zip: + if base_dir != os.curdir: + path = os.path.normpath(os.path.join(base_dir, '')) + zip.write(path, path) + log.info("adding '%s'", path) + for dirpath, dirnames, filenames in os.walk(base_dir): + for name in dirnames: + path = os.path.normpath(os.path.join(dirpath, name, '')) + zip.write(path, path) + log.info("adding '%s'", path) + for name in filenames: + path = os.path.normpath(os.path.join(dirpath, name)) + if os.path.isfile(path): + zip.write(path, path) + log.info("adding '%s'", path) + + return zip_filename + + +ARCHIVE_FORMATS = { + 'gztar': (make_tarball, [('compress', 'gzip')], "gzip'ed tar-file"), + 'bztar': (make_tarball, [('compress', 'bzip2')], "bzip2'ed tar-file"), + 'xztar': (make_tarball, [('compress', 'xz')], "xz'ed tar-file"), + 'ztar': (make_tarball, [('compress', 'compress')], "compressed tar file"), + 'tar': (make_tarball, [('compress', None)], "uncompressed tar file"), + 'zip': (make_zipfile, [], "ZIP file"), +} + + +def check_archive_formats(formats): + """Returns the first format from the 'format' list that is unknown. + + If all formats are known, returns None + """ + for format in formats: + if format not in ARCHIVE_FORMATS: + return format + return None + + +@overload +def make_archive( + base_name: str, + format: str, + root_dir: str | os.PathLike[str] | bytes | os.PathLike[bytes] | None = None, + base_dir: str | None = None, + verbose: bool = False, + dry_run: bool = False, + owner: str | None = None, + group: str | None = None, +) -> str: ... +@overload +def make_archive( + base_name: str | os.PathLike[str], + format: str, + root_dir: str | os.PathLike[str] | bytes | os.PathLike[bytes], + base_dir: str | None = None, + verbose: bool = False, + dry_run: bool = False, + owner: str | None = None, + group: str | None = None, +) -> str: ... +def make_archive( + base_name: str | os.PathLike[str], + format: str, + root_dir: str | os.PathLike[str] | bytes | os.PathLike[bytes] | None = None, + base_dir: str | None = None, + verbose: bool = False, + dry_run: bool = False, + owner: str | None = None, + group: str | None = None, +) -> str: + """Create an archive file (eg. zip or tar). + + 'base_name' is the name of the file to create, minus any format-specific + extension; 'format' is the archive format: one of "zip", "tar", "gztar", + "bztar", "xztar", or "ztar". + + 'root_dir' is a directory that will be the root directory of the + archive; ie. we typically chdir into 'root_dir' before creating the + archive. 'base_dir' is the directory where we start archiving from; + ie. 'base_dir' will be the common prefix of all files and + directories in the archive. 'root_dir' and 'base_dir' both default + to the current directory. Returns the name of the archive file. + + 'owner' and 'group' are used when creating a tar archive. By default, + uses the current owner and group. + """ + save_cwd = os.getcwd() + if root_dir is not None: + log.debug("changing into '%s'", root_dir) + base_name = os.path.abspath(base_name) + if not dry_run: + os.chdir(root_dir) + + if base_dir is None: + base_dir = os.curdir + + kwargs = {'dry_run': dry_run} + + try: + format_info = ARCHIVE_FORMATS[format] + except KeyError: + raise ValueError(f"unknown archive format '{format}'") + + func = format_info[0] + kwargs.update(format_info[1]) + + if format != 'zip': + kwargs['owner'] = owner + kwargs['group'] = group + + try: + filename = func(base_name, base_dir, **kwargs) + finally: + if root_dir is not None: + log.debug("changing back to '%s'", save_cwd) + os.chdir(save_cwd) + + return filename diff --git a/setuptools/_distutils/ccompiler.py b/setuptools/_distutils/ccompiler.py new file mode 100644 index 0000000000..58bc6a55e2 --- /dev/null +++ b/setuptools/_distutils/ccompiler.py @@ -0,0 +1,26 @@ +from .compat.numpy import ( # noqa: F401 + _default_compilers, + compiler_class, +) +from .compilers.C import base +from .compilers.C.base import ( + gen_lib_options, + gen_preprocess_options, + get_default_compiler, + new_compiler, + show_compilers, +) +from .compilers.C.errors import CompileError, LinkError + +__all__ = [ + 'CompileError', + 'LinkError', + 'gen_lib_options', + 'gen_preprocess_options', + 'get_default_compiler', + 'new_compiler', + 'show_compilers', +] + + +CCompiler = base.Compiler diff --git a/setuptools/_distutils/cmd.py b/setuptools/_distutils/cmd.py new file mode 100644 index 0000000000..241621bd51 --- /dev/null +++ b/setuptools/_distutils/cmd.py @@ -0,0 +1,554 @@ +"""distutils.cmd + +Provides the Command class, the base class for the command classes +in the distutils.command package. +""" + +from __future__ import annotations + +import logging +import os +import re +import sys +from abc import abstractmethod +from collections.abc import Callable, MutableSequence +from typing import TYPE_CHECKING, Any, ClassVar, TypeVar, overload + +from . import _modified, archive_util, dir_util, file_util, util +from ._log import log +from .errors import DistutilsOptionError + +if TYPE_CHECKING: + # type-only import because of mutual dependence between these classes + from distutils.dist import Distribution + + from typing_extensions import TypeVarTuple, Unpack + + _Ts = TypeVarTuple("_Ts") + +_StrPathT = TypeVar("_StrPathT", bound="str | os.PathLike[str]") +_BytesPathT = TypeVar("_BytesPathT", bound="bytes | os.PathLike[bytes]") +_CommandT = TypeVar("_CommandT", bound="Command") + + +class Command: + """Abstract base class for defining command classes, the "worker bees" + of the Distutils. A useful analogy for command classes is to think of + them as subroutines with local variables called "options". The options + are "declared" in 'initialize_options()' and "defined" (given their + final values, aka "finalized") in 'finalize_options()', both of which + must be defined by every command class. The distinction between the + two is necessary because option values might come from the outside + world (command line, config file, ...), and any options dependent on + other options must be computed *after* these outside influences have + been processed -- hence 'finalize_options()'. The "body" of the + subroutine, where it does all its work based on the values of its + options, is the 'run()' method, which must also be implemented by every + command class. + """ + + # 'sub_commands' formalizes the notion of a "family" of commands, + # eg. "install" as the parent with sub-commands "install_lib", + # "install_headers", etc. The parent of a family of commands + # defines 'sub_commands' as a class attribute; it's a list of + # (command_name : string, predicate : unbound_method | string | None) + # tuples, where 'predicate' is a method of the parent command that + # determines whether the corresponding command is applicable in the + # current situation. (Eg. we "install_headers" is only applicable if + # we have any C header files to install.) If 'predicate' is None, + # that command is always applicable. + # + # 'sub_commands' is usually defined at the *end* of a class, because + # predicates can be unbound methods, so they must already have been + # defined. The canonical example is the "install" command. + sub_commands: ClassVar[ # Any to work around variance issues + list[tuple[str, Callable[[Any], bool] | None]] + ] = [] + + user_options: ClassVar[ + # Specifying both because list is invariant. Avoids mypy override assignment issues + list[tuple[str, str, str]] | list[tuple[str, str | None, str]] + ] = [] + + # -- Creation/initialization methods ------------------------------- + + def __init__(self, dist: Distribution) -> None: + """Create and initialize a new Command object. Most importantly, + invokes the 'initialize_options()' method, which is the real + initializer and depends on the actual command being + instantiated. + """ + # late import because of mutual dependence between these classes + from distutils.dist import Distribution + + if not isinstance(dist, Distribution): + raise TypeError("dist must be a Distribution instance") + if self.__class__ is Command: + raise RuntimeError("Command is an abstract class") + + self.distribution = dist + self.initialize_options() + + # Per-command versions of the global flags, so that the user can + # customize Distutils' behaviour command-by-command and let some + # commands fall back on the Distribution's behaviour. None means + # "not defined, check self.distribution's copy", while 0 or 1 mean + # false and true (duh). Note that this means figuring out the real + # value of each flag is a touch complicated -- hence "self._dry_run" + # will be handled by __getattr__, below. + # XXX This needs to be fixed. + self._dry_run = None + + # verbose is largely ignored, but needs to be set for + # backwards compatibility (I think)? + self.verbose = dist.verbose + + # Some commands define a 'self.force' option to ignore file + # timestamps, but methods defined *here* assume that + # 'self.force' exists for all commands. So define it here + # just to be safe. + self.force = None + + # The 'help' flag is just used for command-line parsing, so + # none of that complicated bureaucracy is needed. + self.help = False + + # 'finalized' records whether or not 'finalize_options()' has been + # called. 'finalize_options()' itself should not pay attention to + # this flag: it is the business of 'ensure_finalized()', which + # always calls 'finalize_options()', to respect/update it. + self.finalized = False + + # XXX A more explicit way to customize dry_run would be better. + def __getattr__(self, attr): + if attr == 'dry_run': + myval = getattr(self, "_" + attr) + if myval is None: + return getattr(self.distribution, attr) + else: + return myval + else: + raise AttributeError(attr) + + def ensure_finalized(self) -> None: + if not self.finalized: + self.finalize_options() + self.finalized = True + + # Subclasses must define: + # initialize_options() + # provide default values for all options; may be customized by + # setup script, by options from config file(s), or by command-line + # options + # finalize_options() + # decide on the final values for all options; this is called + # after all possible intervention from the outside world + # (command-line, option file, etc.) has been processed + # run() + # run the command: do whatever it is we're here to do, + # controlled by the command's various option values + + @abstractmethod + def initialize_options(self) -> None: + """Set default values for all the options that this command + supports. Note that these defaults may be overridden by other + commands, by the setup script, by config files, or by the + command-line. Thus, this is not the place to code dependencies + between options; generally, 'initialize_options()' implementations + are just a bunch of "self.foo = None" assignments. + + This method must be implemented by all command classes. + """ + raise RuntimeError( + f"abstract method -- subclass {self.__class__} must override" + ) + + @abstractmethod + def finalize_options(self) -> None: + """Set final values for all the options that this command supports. + This is always called as late as possible, ie. after any option + assignments from the command-line or from other commands have been + done. Thus, this is the place to code option dependencies: if + 'foo' depends on 'bar', then it is safe to set 'foo' from 'bar' as + long as 'foo' still has the same value it was assigned in + 'initialize_options()'. + + This method must be implemented by all command classes. + """ + raise RuntimeError( + f"abstract method -- subclass {self.__class__} must override" + ) + + def dump_options(self, header=None, indent=""): + from distutils.fancy_getopt import longopt_xlate + + if header is None: + header = f"command options for '{self.get_command_name()}':" + self.announce(indent + header, level=logging.INFO) + indent = indent + " " + for option, _, _ in self.user_options: + option = option.translate(longopt_xlate) + if option[-1] == "=": + option = option[:-1] + value = getattr(self, option) + self.announce(indent + f"{option} = {value}", level=logging.INFO) + + @abstractmethod + def run(self) -> None: + """A command's raison d'etre: carry out the action it exists to + perform, controlled by the options initialized in + 'initialize_options()', customized by other commands, the setup + script, the command-line, and config files, and finalized in + 'finalize_options()'. All terminal output and filesystem + interaction should be done by 'run()'. + + This method must be implemented by all command classes. + """ + raise RuntimeError( + f"abstract method -- subclass {self.__class__} must override" + ) + + def announce(self, msg: object, level: int = logging.DEBUG) -> None: + log.log(level, msg) + + def debug_print(self, msg: object) -> None: + """Print 'msg' to stdout if the global DEBUG (taken from the + DISTUTILS_DEBUG environment variable) flag is true. + """ + from distutils.debug import DEBUG + + if DEBUG: + print(msg) + sys.stdout.flush() + + # -- Option validation methods ------------------------------------- + # (these are very handy in writing the 'finalize_options()' method) + # + # NB. the general philosophy here is to ensure that a particular option + # value meets certain type and value constraints. If not, we try to + # force it into conformance (eg. if we expect a list but have a string, + # split the string on comma and/or whitespace). If we can't force the + # option into conformance, raise DistutilsOptionError. Thus, command + # classes need do nothing more than (eg.) + # self.ensure_string_list('foo') + # and they can be guaranteed that thereafter, self.foo will be + # a list of strings. + + def _ensure_stringlike(self, option, what, default=None): + val = getattr(self, option) + if val is None: + setattr(self, option, default) + return default + elif not isinstance(val, str): + raise DistutilsOptionError(f"'{option}' must be a {what} (got `{val}`)") + return val + + def ensure_string(self, option: str, default: str | None = None) -> None: + """Ensure that 'option' is a string; if not defined, set it to + 'default'. + """ + self._ensure_stringlike(option, "string", default) + + def ensure_string_list(self, option: str) -> None: + r"""Ensure that 'option' is a list of strings. If 'option' is + currently a string, we split it either on /,\s*/ or /\s+/, so + "foo bar baz", "foo,bar,baz", and "foo, bar baz" all become + ["foo", "bar", "baz"]. + """ + val = getattr(self, option) + if val is None: + return + elif isinstance(val, str): + setattr(self, option, re.split(r',\s*|\s+', val)) + else: + if isinstance(val, list): + ok = all(isinstance(v, str) for v in val) + else: + ok = False + if not ok: + raise DistutilsOptionError( + f"'{option}' must be a list of strings (got {val!r})" + ) + + def _ensure_tested_string(self, option, tester, what, error_fmt, default=None): + val = self._ensure_stringlike(option, what, default) + if val is not None and not tester(val): + raise DistutilsOptionError( + ("error in '%s' option: " + error_fmt) % (option, val) + ) + + def ensure_filename(self, option: str) -> None: + """Ensure that 'option' is the name of an existing file.""" + self._ensure_tested_string( + option, os.path.isfile, "filename", "'%s' does not exist or is not a file" + ) + + def ensure_dirname(self, option: str) -> None: + self._ensure_tested_string( + option, + os.path.isdir, + "directory name", + "'%s' does not exist or is not a directory", + ) + + # -- Convenience methods for commands ------------------------------ + + def get_command_name(self) -> str: + if hasattr(self, 'command_name'): + return self.command_name + else: + return self.__class__.__name__ + + def set_undefined_options( + self, src_cmd: str, *option_pairs: tuple[str, str] + ) -> None: + """Set the values of any "undefined" options from corresponding + option values in some other command object. "Undefined" here means + "is None", which is the convention used to indicate that an option + has not been changed between 'initialize_options()' and + 'finalize_options()'. Usually called from 'finalize_options()' for + options that depend on some other command rather than another + option of the same command. 'src_cmd' is the other command from + which option values will be taken (a command object will be created + for it if necessary); the remaining arguments are + '(src_option,dst_option)' tuples which mean "take the value of + 'src_option' in the 'src_cmd' command object, and copy it to + 'dst_option' in the current command object". + """ + # Option_pairs: list of (src_option, dst_option) tuples + src_cmd_obj = self.distribution.get_command_obj(src_cmd) + src_cmd_obj.ensure_finalized() + for src_option, dst_option in option_pairs: + if getattr(self, dst_option) is None: + setattr(self, dst_option, getattr(src_cmd_obj, src_option)) + + # NOTE: Because distutils is private to Setuptools and not all commands are exposed here, + # not every possible command is enumerated in the signature. + def get_finalized_command(self, command: str, create: bool = True) -> Command: + """Wrapper around Distribution's 'get_command_obj()' method: find + (create if necessary and 'create' is true) the command object for + 'command', call its 'ensure_finalized()' method, and return the + finalized command object. + """ + cmd_obj = self.distribution.get_command_obj(command, create) + cmd_obj.ensure_finalized() + return cmd_obj + + # XXX rename to 'get_reinitialized_command()'? (should do the + # same in dist.py, if so) + @overload + def reinitialize_command( + self, command: str, reinit_subcommands: bool = False + ) -> Command: ... + @overload + def reinitialize_command( + self, command: _CommandT, reinit_subcommands: bool = False + ) -> _CommandT: ... + def reinitialize_command( + self, command: str | Command, reinit_subcommands=False + ) -> Command: + return self.distribution.reinitialize_command(command, reinit_subcommands) + + def run_command(self, command: str) -> None: + """Run some other command: uses the 'run_command()' method of + Distribution, which creates and finalizes the command object if + necessary and then invokes its 'run()' method. + """ + self.distribution.run_command(command) + + def get_sub_commands(self) -> list[str]: + """Determine the sub-commands that are relevant in the current + distribution (ie., that need to be run). This is based on the + 'sub_commands' class attribute: each tuple in that list may include + a method that we call to determine if the subcommand needs to be + run for the current distribution. Return a list of command names. + """ + commands = [] + for cmd_name, method in self.sub_commands: + if method is None or method(self): + commands.append(cmd_name) + return commands + + # -- External world manipulation ----------------------------------- + + def warn(self, msg: object) -> None: + log.warning("warning: %s: %s\n", self.get_command_name(), msg) + + def execute( + self, + func: Callable[[Unpack[_Ts]], object], + args: tuple[Unpack[_Ts]], + msg: object = None, + level: int = 1, + ) -> None: + util.execute(func, args, msg, dry_run=self.dry_run) + + def mkpath(self, name: str, mode: int = 0o777) -> None: + dir_util.mkpath(name, mode, dry_run=self.dry_run) + + @overload + def copy_file( + self, + infile: str | os.PathLike[str], + outfile: _StrPathT, + preserve_mode: bool = True, + preserve_times: bool = True, + link: str | None = None, + level: int = 1, + ) -> tuple[_StrPathT | str, bool]: ... + @overload + def copy_file( + self, + infile: bytes | os.PathLike[bytes], + outfile: _BytesPathT, + preserve_mode: bool = True, + preserve_times: bool = True, + link: str | None = None, + level: int = 1, + ) -> tuple[_BytesPathT | bytes, bool]: ... + def copy_file( + self, + infile: str | os.PathLike[str] | bytes | os.PathLike[bytes], + outfile: str | os.PathLike[str] | bytes | os.PathLike[bytes], + preserve_mode: bool = True, + preserve_times: bool = True, + link: str | None = None, + level: int = 1, + ) -> tuple[str | os.PathLike[str] | bytes | os.PathLike[bytes], bool]: + """Copy a file respecting verbose, dry-run and force flags. (The + former two default to whatever is in the Distribution object, and + the latter defaults to false for commands that don't define it.)""" + return file_util.copy_file( + infile, + outfile, + preserve_mode, + preserve_times, + not self.force, + link, + dry_run=self.dry_run, + ) + + def copy_tree( + self, + infile: str | os.PathLike[str], + outfile: str, + preserve_mode: bool = True, + preserve_times: bool = True, + preserve_symlinks: bool = False, + level: int = 1, + ) -> list[str]: + """Copy an entire directory tree respecting verbose, dry-run, + and force flags. + """ + return dir_util.copy_tree( + infile, + outfile, + preserve_mode, + preserve_times, + preserve_symlinks, + not self.force, + dry_run=self.dry_run, + ) + + @overload + def move_file( + self, src: str | os.PathLike[str], dst: _StrPathT, level: int = 1 + ) -> _StrPathT | str: ... + @overload + def move_file( + self, src: bytes | os.PathLike[bytes], dst: _BytesPathT, level: int = 1 + ) -> _BytesPathT | bytes: ... + def move_file( + self, + src: str | os.PathLike[str] | bytes | os.PathLike[bytes], + dst: str | os.PathLike[str] | bytes | os.PathLike[bytes], + level: int = 1, + ) -> str | os.PathLike[str] | bytes | os.PathLike[bytes]: + """Move a file respecting dry-run flag.""" + return file_util.move_file(src, dst, dry_run=self.dry_run) + + def spawn( + self, cmd: MutableSequence[str], search_path: bool = True, level: int = 1 + ) -> None: + """Spawn an external command respecting dry-run flag.""" + from distutils.spawn import spawn + + spawn(cmd, search_path, dry_run=self.dry_run) + + @overload + def make_archive( + self, + base_name: str, + format: str, + root_dir: str | os.PathLike[str] | bytes | os.PathLike[bytes] | None = None, + base_dir: str | None = None, + owner: str | None = None, + group: str | None = None, + ) -> str: ... + @overload + def make_archive( + self, + base_name: str | os.PathLike[str], + format: str, + root_dir: str | os.PathLike[str] | bytes | os.PathLike[bytes], + base_dir: str | None = None, + owner: str | None = None, + group: str | None = None, + ) -> str: ... + def make_archive( + self, + base_name: str | os.PathLike[str], + format: str, + root_dir: str | os.PathLike[str] | bytes | os.PathLike[bytes] | None = None, + base_dir: str | None = None, + owner: str | None = None, + group: str | None = None, + ) -> str: + return archive_util.make_archive( + base_name, + format, + root_dir, + base_dir, + dry_run=self.dry_run, + owner=owner, + group=group, + ) + + def make_file( + self, + infiles: str | list[str] | tuple[str, ...], + outfile: str | os.PathLike[str] | bytes | os.PathLike[bytes], + func: Callable[[Unpack[_Ts]], object], + args: tuple[Unpack[_Ts]], + exec_msg: object = None, + skip_msg: object = None, + level: int = 1, + ) -> None: + """Special case of 'execute()' for operations that process one or + more input files and generate one output file. Works just like + 'execute()', except the operation is skipped and a different + message printed if 'outfile' already exists and is newer than all + files listed in 'infiles'. If the command defined 'self.force', + and it is true, then the command is unconditionally run -- does no + timestamp checks. + """ + if skip_msg is None: + skip_msg = f"skipping {outfile} (inputs unchanged)" + + # Allow 'infiles' to be a single string + if isinstance(infiles, str): + infiles = (infiles,) + elif not isinstance(infiles, (list, tuple)): + raise TypeError("'infiles' must be a string, or a list or tuple of strings") + + if exec_msg is None: + exec_msg = "generating {} from {}".format(outfile, ', '.join(infiles)) + + # If 'outfile' must be regenerated (either because it doesn't + # exist, is out-of-date, or the 'force' flag is true) then + # perform the action that presumably regenerates it + if self.force or _modified.newer_group(infiles, outfile): + self.execute(func, args, exec_msg, level) + # Otherwise, print the "skip" message + else: + log.debug(skip_msg) diff --git a/setuptools/_distutils/command/__init__.py b/setuptools/_distutils/command/__init__.py new file mode 100644 index 0000000000..0f8a1692ba --- /dev/null +++ b/setuptools/_distutils/command/__init__.py @@ -0,0 +1,23 @@ +"""distutils.command + +Package containing implementation of all the standard Distutils +commands.""" + +__all__ = [ + 'build', + 'build_py', + 'build_ext', + 'build_clib', + 'build_scripts', + 'clean', + 'install', + 'install_lib', + 'install_headers', + 'install_scripts', + 'install_data', + 'sdist', + 'bdist', + 'bdist_dumb', + 'bdist_rpm', + 'check', +] diff --git a/setuptools/_distutils/command/_framework_compat.py b/setuptools/_distutils/command/_framework_compat.py new file mode 100644 index 0000000000..00d34bc7d8 --- /dev/null +++ b/setuptools/_distutils/command/_framework_compat.py @@ -0,0 +1,54 @@ +""" +Backward compatibility for homebrew builds on macOS. +""" + +import functools +import os +import subprocess +import sys +import sysconfig + + +@functools.lru_cache +def enabled(): + """ + Only enabled for Python 3.9 framework homebrew builds + except ensurepip and venv. + """ + PY39 = (3, 9) < sys.version_info < (3, 10) + framework = sys.platform == 'darwin' and sys._framework + homebrew = "Cellar" in sysconfig.get_config_var('projectbase') + venv = sys.prefix != sys.base_prefix + ensurepip = os.environ.get("ENSUREPIP_OPTIONS") + return PY39 and framework and homebrew and not venv and not ensurepip + + +schemes = dict( + osx_framework_library=dict( + stdlib='{installed_base}/{platlibdir}/python{py_version_short}', + platstdlib='{platbase}/{platlibdir}/python{py_version_short}', + purelib='{homebrew_prefix}/lib/python{py_version_short}/site-packages', + platlib='{homebrew_prefix}/{platlibdir}/python{py_version_short}/site-packages', + include='{installed_base}/include/python{py_version_short}{abiflags}', + platinclude='{installed_platbase}/include/python{py_version_short}{abiflags}', + scripts='{homebrew_prefix}/bin', + data='{homebrew_prefix}', + ) +) + + +@functools.lru_cache +def vars(): + if not enabled(): + return {} + homebrew_prefix = subprocess.check_output(['brew', '--prefix'], text=True).strip() + return locals() + + +def scheme(name): + """ + Override the selected scheme for posix_prefix. + """ + if not enabled() or not name.endswith('_prefix'): + return name + return 'osx_framework_library' diff --git a/setuptools/_distutils/command/bdist.py b/setuptools/_distutils/command/bdist.py new file mode 100644 index 0000000000..07811aab27 --- /dev/null +++ b/setuptools/_distutils/command/bdist.py @@ -0,0 +1,167 @@ +"""distutils.command.bdist + +Implements the Distutils 'bdist' command (create a built [binary] +distribution).""" + +from __future__ import annotations + +import os +import warnings +from collections.abc import Callable +from typing import TYPE_CHECKING, ClassVar + +from ..core import Command +from ..errors import DistutilsOptionError, DistutilsPlatformError +from ..util import get_platform + +if TYPE_CHECKING: + from typing_extensions import deprecated +else: + + def deprecated(message): + return lambda fn: fn + + +def show_formats(): + """Print list of available formats (arguments to "--format" option).""" + from ..fancy_getopt import FancyGetopt + + formats = [ + ("formats=" + format, None, bdist.format_commands[format][1]) + for format in bdist.format_commands + ] + pretty_printer = FancyGetopt(formats) + pretty_printer.print_help("List of available distribution formats:") + + +class ListCompat(dict[str, tuple[str, str]]): + # adapter to allow for Setuptools compatibility in format_commands + @deprecated("format_commands is now a dict. append is deprecated.") + def append(self, item: object) -> None: + warnings.warn( + "format_commands is now a dict. append is deprecated.", + DeprecationWarning, + stacklevel=2, + ) + + +class bdist(Command): + description = "create a built (binary) distribution" + + user_options = [ + ('bdist-base=', 'b', "temporary directory for creating built distributions"), + ( + 'plat-name=', + 'p', + "platform name to embed in generated filenames " + f"[default: {get_platform()}]", + ), + ('formats=', None, "formats for distribution (comma-separated list)"), + ( + 'dist-dir=', + 'd', + "directory to put final built distributions in [default: dist]", + ), + ('skip-build', None, "skip rebuilding everything (for testing/debugging)"), + ( + 'owner=', + 'u', + "Owner name used when creating a tar file [default: current user]", + ), + ( + 'group=', + 'g', + "Group name used when creating a tar file [default: current group]", + ), + ] + + boolean_options: ClassVar[list[str]] = ['skip-build'] + + help_options: ClassVar[list[tuple[str, str | None, str, Callable[[], object]]]] = [ + ('help-formats', None, "lists available distribution formats", show_formats), + ] + + # The following commands do not take a format option from bdist + no_format_option: ClassVar[tuple[str, ...]] = ('bdist_rpm',) + + # This won't do in reality: will need to distinguish RPM-ish Linux, + # Debian-ish Linux, Solaris, FreeBSD, ..., Windows, Mac OS. + default_format: ClassVar[dict[str, str]] = {'posix': 'gztar', 'nt': 'zip'} + + # Define commands in preferred order for the --help-formats option + format_commands = ListCompat({ + 'rpm': ('bdist_rpm', "RPM distribution"), + 'gztar': ('bdist_dumb', "gzip'ed tar file"), + 'bztar': ('bdist_dumb', "bzip2'ed tar file"), + 'xztar': ('bdist_dumb', "xz'ed tar file"), + 'ztar': ('bdist_dumb', "compressed tar file"), + 'tar': ('bdist_dumb', "tar file"), + 'zip': ('bdist_dumb', "ZIP file"), + }) + + # for compatibility until consumers only reference format_commands + format_command = format_commands + + def initialize_options(self): + self.bdist_base = None + self.plat_name = None + self.formats = None + self.dist_dir = None + self.skip_build = False + self.group = None + self.owner = None + + def finalize_options(self) -> None: + # have to finalize 'plat_name' before 'bdist_base' + if self.plat_name is None: + if self.skip_build: + self.plat_name = get_platform() + else: + self.plat_name = self.get_finalized_command('build').plat_name + + # 'bdist_base' -- parent of per-built-distribution-format + # temporary directories (eg. we'll probably have + # "build/bdist./dumb", "build/bdist./rpm", etc.) + if self.bdist_base is None: + build_base = self.get_finalized_command('build').build_base + self.bdist_base = os.path.join(build_base, 'bdist.' + self.plat_name) + + self.ensure_string_list('formats') + if self.formats is None: + try: + self.formats = [self.default_format[os.name]] + except KeyError: + raise DistutilsPlatformError( + "don't know how to create built distributions " + f"on platform {os.name}" + ) + + if self.dist_dir is None: + self.dist_dir = "dist" + + def run(self) -> None: + # Figure out which sub-commands we need to run. + commands = [] + for format in self.formats: + try: + commands.append(self.format_commands[format][0]) + except KeyError: + raise DistutilsOptionError(f"invalid format '{format}'") + + # Reinitialize and run each command. + for i in range(len(self.formats)): + cmd_name = commands[i] + sub_cmd = self.reinitialize_command(cmd_name) + if cmd_name not in self.no_format_option: + sub_cmd.format = self.formats[i] + + # passing the owner and group names for tar archiving + if cmd_name == 'bdist_dumb': + sub_cmd.owner = self.owner + sub_cmd.group = self.group + + # If we're going to need to run this command again, tell it to + # keep its temporary files around so subsequent runs go faster. + if cmd_name in commands[i + 1 :]: + sub_cmd.keep_temp = True + self.run_command(cmd_name) diff --git a/setuptools/_distutils/command/bdist_dumb.py b/setuptools/_distutils/command/bdist_dumb.py new file mode 100644 index 0000000000..ccad66f431 --- /dev/null +++ b/setuptools/_distutils/command/bdist_dumb.py @@ -0,0 +1,141 @@ +"""distutils.command.bdist_dumb + +Implements the Distutils 'bdist_dumb' command (create a "dumb" built +distribution -- i.e., just an archive to be unpacked under $prefix or +$exec_prefix).""" + +import os +from distutils._log import log +from typing import ClassVar + +from ..core import Command +from ..dir_util import ensure_relative, remove_tree +from ..errors import DistutilsPlatformError +from ..sysconfig import get_python_version +from ..util import get_platform + + +class bdist_dumb(Command): + description = "create a \"dumb\" built distribution" + + user_options = [ + ('bdist-dir=', 'd', "temporary directory for creating the distribution"), + ( + 'plat-name=', + 'p', + "platform name to embed in generated filenames " + f"[default: {get_platform()}]", + ), + ( + 'format=', + 'f', + "archive format to create (tar, gztar, bztar, xztar, ztar, zip)", + ), + ( + 'keep-temp', + 'k', + "keep the pseudo-installation tree around after creating the distribution archive", + ), + ('dist-dir=', 'd', "directory to put final built distributions in"), + ('skip-build', None, "skip rebuilding everything (for testing/debugging)"), + ( + 'relative', + None, + "build the archive using relative paths [default: false]", + ), + ( + 'owner=', + 'u', + "Owner name used when creating a tar file [default: current user]", + ), + ( + 'group=', + 'g', + "Group name used when creating a tar file [default: current group]", + ), + ] + + boolean_options: ClassVar[list[str]] = ['keep-temp', 'skip-build', 'relative'] + + default_format = {'posix': 'gztar', 'nt': 'zip'} + + def initialize_options(self): + self.bdist_dir = None + self.plat_name = None + self.format = None + self.keep_temp = False + self.dist_dir = None + self.skip_build = None + self.relative = False + self.owner = None + self.group = None + + def finalize_options(self): + if self.bdist_dir is None: + bdist_base = self.get_finalized_command('bdist').bdist_base + self.bdist_dir = os.path.join(bdist_base, 'dumb') + + if self.format is None: + try: + self.format = self.default_format[os.name] + except KeyError: + raise DistutilsPlatformError( + "don't know how to create dumb built distributions " + f"on platform {os.name}" + ) + + self.set_undefined_options( + 'bdist', + ('dist_dir', 'dist_dir'), + ('plat_name', 'plat_name'), + ('skip_build', 'skip_build'), + ) + + def run(self): + if not self.skip_build: + self.run_command('build') + + install = self.reinitialize_command('install', reinit_subcommands=True) + install.root = self.bdist_dir + install.skip_build = self.skip_build + install.warn_dir = False + + log.info("installing to %s", self.bdist_dir) + self.run_command('install') + + # And make an archive relative to the root of the + # pseudo-installation tree. + archive_basename = f"{self.distribution.get_fullname()}.{self.plat_name}" + + pseudoinstall_root = os.path.join(self.dist_dir, archive_basename) + if not self.relative: + archive_root = self.bdist_dir + else: + if self.distribution.has_ext_modules() and ( + install.install_base != install.install_platbase + ): + raise DistutilsPlatformError( + "can't make a dumb built distribution where " + f"base and platbase are different ({install.install_base!r}, {install.install_platbase!r})" + ) + else: + archive_root = os.path.join( + self.bdist_dir, ensure_relative(install.install_base) + ) + + # Make the archive + filename = self.make_archive( + pseudoinstall_root, + self.format, + root_dir=archive_root, + owner=self.owner, + group=self.group, + ) + if self.distribution.has_ext_modules(): + pyversion = get_python_version() + else: + pyversion = 'any' + self.distribution.dist_files.append(('bdist_dumb', pyversion, filename)) + + if not self.keep_temp: + remove_tree(self.bdist_dir, dry_run=self.dry_run) diff --git a/setuptools/_distutils/command/bdist_rpm.py b/setuptools/_distutils/command/bdist_rpm.py new file mode 100644 index 0000000000..357b4e861e --- /dev/null +++ b/setuptools/_distutils/command/bdist_rpm.py @@ -0,0 +1,598 @@ +"""distutils.command.bdist_rpm + +Implements the Distutils 'bdist_rpm' command (create RPM source and binary +distributions).""" + +import os +import subprocess +import sys +from distutils._log import log +from typing import ClassVar + +from ..core import Command +from ..debug import DEBUG +from ..errors import ( + DistutilsExecError, + DistutilsFileError, + DistutilsOptionError, + DistutilsPlatformError, +) +from ..file_util import write_file +from ..sysconfig import get_python_version + + +class bdist_rpm(Command): + description = "create an RPM distribution" + + user_options = [ + ('bdist-base=', None, "base directory for creating built distributions"), + ( + 'rpm-base=', + None, + "base directory for creating RPMs (defaults to \"rpm\" under " + "--bdist-base; must be specified for RPM 2)", + ), + ( + 'dist-dir=', + 'd', + "directory to put final RPM files in (and .spec files if --spec-only)", + ), + ( + 'python=', + None, + "path to Python interpreter to hard-code in the .spec file " + "[default: \"python\"]", + ), + ( + 'fix-python', + None, + "hard-code the exact path to the current Python interpreter in " + "the .spec file", + ), + ('spec-only', None, "only regenerate spec file"), + ('source-only', None, "only generate source RPM"), + ('binary-only', None, "only generate binary RPM"), + ('use-bzip2', None, "use bzip2 instead of gzip to create source distribution"), + # More meta-data: too RPM-specific to put in the setup script, + # but needs to go in the .spec file -- so we make these options + # to "bdist_rpm". The idea is that packagers would put this + # info in setup.cfg, although they are of course free to + # supply it on the command line. + ( + 'distribution-name=', + None, + "name of the (Linux) distribution to which this " + "RPM applies (*not* the name of the module distribution!)", + ), + ('group=', None, "package classification [default: \"Development/Libraries\"]"), + ('release=', None, "RPM release number"), + ('serial=', None, "RPM serial number"), + ( + 'vendor=', + None, + "RPM \"vendor\" (eg. \"Joe Blow \") " + "[default: maintainer or author from setup script]", + ), + ( + 'packager=', + None, + "RPM packager (eg. \"Jane Doe \") [default: vendor]", + ), + ('doc-files=', None, "list of documentation files (space or comma-separated)"), + ('changelog=', None, "RPM changelog"), + ('icon=', None, "name of icon file"), + ('provides=', None, "capabilities provided by this package"), + ('requires=', None, "capabilities required by this package"), + ('conflicts=', None, "capabilities which conflict with this package"), + ('build-requires=', None, "capabilities required to build this package"), + ('obsoletes=', None, "capabilities made obsolete by this package"), + ('no-autoreq', None, "do not automatically calculate dependencies"), + # Actions to take when building RPM + ('keep-temp', 'k', "don't clean up RPM build directory"), + ('no-keep-temp', None, "clean up RPM build directory [default]"), + ( + 'use-rpm-opt-flags', + None, + "compile with RPM_OPT_FLAGS when building from source RPM", + ), + ('no-rpm-opt-flags', None, "do not pass any RPM CFLAGS to compiler"), + ('rpm3-mode', None, "RPM 3 compatibility mode (default)"), + ('rpm2-mode', None, "RPM 2 compatibility mode"), + # Add the hooks necessary for specifying custom scripts + ('prep-script=', None, "Specify a script for the PREP phase of RPM building"), + ('build-script=', None, "Specify a script for the BUILD phase of RPM building"), + ( + 'pre-install=', + None, + "Specify a script for the pre-INSTALL phase of RPM building", + ), + ( + 'install-script=', + None, + "Specify a script for the INSTALL phase of RPM building", + ), + ( + 'post-install=', + None, + "Specify a script for the post-INSTALL phase of RPM building", + ), + ( + 'pre-uninstall=', + None, + "Specify a script for the pre-UNINSTALL phase of RPM building", + ), + ( + 'post-uninstall=', + None, + "Specify a script for the post-UNINSTALL phase of RPM building", + ), + ('clean-script=', None, "Specify a script for the CLEAN phase of RPM building"), + ( + 'verify-script=', + None, + "Specify a script for the VERIFY phase of the RPM build", + ), + # Allow a packager to explicitly force an architecture + ('force-arch=', None, "Force an architecture onto the RPM build process"), + ('quiet', 'q', "Run the INSTALL phase of RPM building in quiet mode"), + ] + + boolean_options: ClassVar[list[str]] = [ + 'keep-temp', + 'use-rpm-opt-flags', + 'rpm3-mode', + 'no-autoreq', + 'quiet', + ] + + negative_opt: ClassVar[dict[str, str]] = { + 'no-keep-temp': 'keep-temp', + 'no-rpm-opt-flags': 'use-rpm-opt-flags', + 'rpm2-mode': 'rpm3-mode', + } + + def initialize_options(self): + self.bdist_base = None + self.rpm_base = None + self.dist_dir = None + self.python = None + self.fix_python = None + self.spec_only = None + self.binary_only = None + self.source_only = None + self.use_bzip2 = None + + self.distribution_name = None + self.group = None + self.release = None + self.serial = None + self.vendor = None + self.packager = None + self.doc_files = None + self.changelog = None + self.icon = None + + self.prep_script = None + self.build_script = None + self.install_script = None + self.clean_script = None + self.verify_script = None + self.pre_install = None + self.post_install = None + self.pre_uninstall = None + self.post_uninstall = None + self.prep = None + self.provides = None + self.requires = None + self.conflicts = None + self.build_requires = None + self.obsoletes = None + + self.keep_temp = False + self.use_rpm_opt_flags = True + self.rpm3_mode = True + self.no_autoreq = False + + self.force_arch = None + self.quiet = False + + def finalize_options(self) -> None: + self.set_undefined_options('bdist', ('bdist_base', 'bdist_base')) + if self.rpm_base is None: + if not self.rpm3_mode: + raise DistutilsOptionError("you must specify --rpm-base in RPM 2 mode") + self.rpm_base = os.path.join(self.bdist_base, "rpm") + + if self.python is None: + if self.fix_python: + self.python = sys.executable + else: + self.python = "python3" + elif self.fix_python: + raise DistutilsOptionError( + "--python and --fix-python are mutually exclusive options" + ) + + if os.name != 'posix': + raise DistutilsPlatformError( + f"don't know how to create RPM distributions on platform {os.name}" + ) + if self.binary_only and self.source_only: + raise DistutilsOptionError( + "cannot supply both '--source-only' and '--binary-only'" + ) + + # don't pass CFLAGS to pure python distributions + if not self.distribution.has_ext_modules(): + self.use_rpm_opt_flags = False + + self.set_undefined_options('bdist', ('dist_dir', 'dist_dir')) + self.finalize_package_data() + + def finalize_package_data(self) -> None: + self.ensure_string('group', "Development/Libraries") + self.ensure_string( + 'vendor', + f"{self.distribution.get_contact()} <{self.distribution.get_contact_email()}>", + ) + self.ensure_string('packager') + self.ensure_string_list('doc_files') + if isinstance(self.doc_files, list): + for readme in ('README', 'README.txt'): + if os.path.exists(readme) and readme not in self.doc_files: + self.doc_files.append(readme) + + self.ensure_string('release', "1") + self.ensure_string('serial') # should it be an int? + + self.ensure_string('distribution_name') + + self.ensure_string('changelog') + # Format changelog correctly + self.changelog = self._format_changelog(self.changelog) + + self.ensure_filename('icon') + + self.ensure_filename('prep_script') + self.ensure_filename('build_script') + self.ensure_filename('install_script') + self.ensure_filename('clean_script') + self.ensure_filename('verify_script') + self.ensure_filename('pre_install') + self.ensure_filename('post_install') + self.ensure_filename('pre_uninstall') + self.ensure_filename('post_uninstall') + + # XXX don't forget we punted on summaries and descriptions -- they + # should be handled here eventually! + + # Now *this* is some meta-data that belongs in the setup script... + self.ensure_string_list('provides') + self.ensure_string_list('requires') + self.ensure_string_list('conflicts') + self.ensure_string_list('build_requires') + self.ensure_string_list('obsoletes') + + self.ensure_string('force_arch') + + def run(self) -> None: # noqa: C901 + if DEBUG: + print("before _get_package_data():") + print("vendor =", self.vendor) + print("packager =", self.packager) + print("doc_files =", self.doc_files) + print("changelog =", self.changelog) + + # make directories + if self.spec_only: + spec_dir = self.dist_dir + self.mkpath(spec_dir) + else: + rpm_dir = {} + for d in ('SOURCES', 'SPECS', 'BUILD', 'RPMS', 'SRPMS'): + rpm_dir[d] = os.path.join(self.rpm_base, d) + self.mkpath(rpm_dir[d]) + spec_dir = rpm_dir['SPECS'] + + # Spec file goes into 'dist_dir' if '--spec-only specified', + # build/rpm. otherwise. + spec_path = os.path.join(spec_dir, f"{self.distribution.get_name()}.spec") + self.execute( + write_file, (spec_path, self._make_spec_file()), f"writing '{spec_path}'" + ) + + if self.spec_only: # stop if requested + return + + # Make a source distribution and copy to SOURCES directory with + # optional icon. + saved_dist_files = self.distribution.dist_files[:] + sdist = self.reinitialize_command('sdist') + if self.use_bzip2: + sdist.formats = ['bztar'] + else: + sdist.formats = ['gztar'] + self.run_command('sdist') + self.distribution.dist_files = saved_dist_files + + source = sdist.get_archive_files()[0] + source_dir = rpm_dir['SOURCES'] + self.copy_file(source, source_dir) + + if self.icon: + if os.path.exists(self.icon): + self.copy_file(self.icon, source_dir) + else: + raise DistutilsFileError(f"icon file '{self.icon}' does not exist") + + # build package + log.info("building RPMs") + rpm_cmd = ['rpmbuild'] + + if self.source_only: # what kind of RPMs? + rpm_cmd.append('-bs') + elif self.binary_only: + rpm_cmd.append('-bb') + else: + rpm_cmd.append('-ba') + rpm_cmd.extend(['--define', f'__python {self.python}']) + if self.rpm3_mode: + rpm_cmd.extend(['--define', f'_topdir {os.path.abspath(self.rpm_base)}']) + if not self.keep_temp: + rpm_cmd.append('--clean') + + if self.quiet: + rpm_cmd.append('--quiet') + + rpm_cmd.append(spec_path) + # Determine the binary rpm names that should be built out of this spec + # file + # Note that some of these may not be really built (if the file + # list is empty) + nvr_string = "%{name}-%{version}-%{release}" + src_rpm = nvr_string + ".src.rpm" + non_src_rpm = "%{arch}/" + nvr_string + ".%{arch}.rpm" + q_cmd = rf"rpm -q --qf '{src_rpm} {non_src_rpm}\n' --specfile '{spec_path}'" + + out = os.popen(q_cmd) + try: + binary_rpms = [] + source_rpm = None + while True: + line = out.readline() + if not line: + break + ell = line.strip().split() + assert len(ell) == 2 + binary_rpms.append(ell[1]) + # The source rpm is named after the first entry in the spec file + if source_rpm is None: + source_rpm = ell[0] + + status = out.close() + if status: + raise DistutilsExecError(f"Failed to execute: {q_cmd!r}") + + finally: + out.close() + + self.spawn(rpm_cmd) + + if not self.dry_run: + if self.distribution.has_ext_modules(): + pyversion = get_python_version() + else: + pyversion = 'any' + + if not self.binary_only: + srpm = os.path.join(rpm_dir['SRPMS'], source_rpm) + assert os.path.exists(srpm) + self.move_file(srpm, self.dist_dir) + filename = os.path.join(self.dist_dir, source_rpm) + self.distribution.dist_files.append(('bdist_rpm', pyversion, filename)) + + if not self.source_only: + for rpm in binary_rpms: + rpm = os.path.join(rpm_dir['RPMS'], rpm) + if os.path.exists(rpm): + self.move_file(rpm, self.dist_dir) + filename = os.path.join(self.dist_dir, os.path.basename(rpm)) + self.distribution.dist_files.append(( + 'bdist_rpm', + pyversion, + filename, + )) + + def _dist_path(self, path): + return os.path.join(self.dist_dir, os.path.basename(path)) + + def _make_spec_file(self): # noqa: C901 + """Generate the text of an RPM spec file and return it as a + list of strings (one per line). + """ + # definitions and headers + spec_file = [ + '%define name ' + self.distribution.get_name(), + '%define version ' + self.distribution.get_version().replace('-', '_'), + '%define unmangled_version ' + self.distribution.get_version(), + '%define release ' + self.release.replace('-', '_'), + '', + 'Summary: ' + (self.distribution.get_description() or "UNKNOWN"), + ] + + # Workaround for #14443 which affects some RPM based systems such as + # RHEL6 (and probably derivatives) + vendor_hook = subprocess.getoutput('rpm --eval %{__os_install_post}') + # Generate a potential replacement value for __os_install_post (whilst + # normalizing the whitespace to simplify the test for whether the + # invocation of brp-python-bytecompile passes in __python): + vendor_hook = '\n'.join([ + f' {line.strip()} \\' for line in vendor_hook.splitlines() + ]) + problem = "brp-python-bytecompile \\\n" + fixed = "brp-python-bytecompile %{__python} \\\n" + fixed_hook = vendor_hook.replace(problem, fixed) + if fixed_hook != vendor_hook: + spec_file.append('# Workaround for https://bugs.python.org/issue14443') + spec_file.append('%define __os_install_post ' + fixed_hook + '\n') + + # put locale summaries into spec file + # XXX not supported for now (hard to put a dictionary + # in a config file -- arg!) + # for locale in self.summaries.keys(): + # spec_file.append('Summary(%s): %s' % (locale, + # self.summaries[locale])) + + spec_file.extend([ + 'Name: %{name}', + 'Version: %{version}', + 'Release: %{release}', + ]) + + # XXX yuck! this filename is available from the "sdist" command, + # but only after it has run: and we create the spec file before + # running "sdist", in case of --spec-only. + if self.use_bzip2: + spec_file.append('Source0: %{name}-%{unmangled_version}.tar.bz2') + else: + spec_file.append('Source0: %{name}-%{unmangled_version}.tar.gz') + + spec_file.extend([ + 'License: ' + (self.distribution.get_license() or "UNKNOWN"), + 'Group: ' + self.group, + 'BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-buildroot', + 'Prefix: %{_prefix}', + ]) + + if not self.force_arch: + # noarch if no extension modules + if not self.distribution.has_ext_modules(): + spec_file.append('BuildArch: noarch') + else: + spec_file.append(f'BuildArch: {self.force_arch}') + + for field in ( + 'Vendor', + 'Packager', + 'Provides', + 'Requires', + 'Conflicts', + 'Obsoletes', + ): + val = getattr(self, field.lower()) + if isinstance(val, list): + spec_file.append('{}: {}'.format(field, ' '.join(val))) + elif val is not None: + spec_file.append(f'{field}: {val}') + + if self.distribution.get_url(): + spec_file.append('Url: ' + self.distribution.get_url()) + + if self.distribution_name: + spec_file.append('Distribution: ' + self.distribution_name) + + if self.build_requires: + spec_file.append('BuildRequires: ' + ' '.join(self.build_requires)) + + if self.icon: + spec_file.append('Icon: ' + os.path.basename(self.icon)) + + if self.no_autoreq: + spec_file.append('AutoReq: 0') + + spec_file.extend([ + '', + '%description', + self.distribution.get_long_description() or "", + ]) + + # put locale descriptions into spec file + # XXX again, suppressed because config file syntax doesn't + # easily support this ;-( + # for locale in self.descriptions.keys(): + # spec_file.extend([ + # '', + # '%description -l ' + locale, + # self.descriptions[locale], + # ]) + + # rpm scripts + # figure out default build script + def_setup_call = f"{self.python} {os.path.basename(sys.argv[0])}" + def_build = f"{def_setup_call} build" + if self.use_rpm_opt_flags: + def_build = 'env CFLAGS="$RPM_OPT_FLAGS" ' + def_build + + # insert contents of files + + # XXX this is kind of misleading: user-supplied options are files + # that we open and interpolate into the spec file, but the defaults + # are just text that we drop in as-is. Hmmm. + + install_cmd = f'{def_setup_call} install -O1 --root=$RPM_BUILD_ROOT --record=INSTALLED_FILES' + + script_options = [ + ('prep', 'prep_script', "%setup -n %{name}-%{unmangled_version}"), + ('build', 'build_script', def_build), + ('install', 'install_script', install_cmd), + ('clean', 'clean_script', "rm -rf $RPM_BUILD_ROOT"), + ('verifyscript', 'verify_script', None), + ('pre', 'pre_install', None), + ('post', 'post_install', None), + ('preun', 'pre_uninstall', None), + ('postun', 'post_uninstall', None), + ] + + for rpm_opt, attr, default in script_options: + # Insert contents of file referred to, if no file is referred to + # use 'default' as contents of script + val = getattr(self, attr) + if val or default: + spec_file.extend([ + '', + '%' + rpm_opt, + ]) + if val: + with open(val) as f: + spec_file.extend(f.read().split('\n')) + else: + spec_file.append(default) + + # files section + spec_file.extend([ + '', + '%files -f INSTALLED_FILES', + '%defattr(-,root,root)', + ]) + + if self.doc_files: + spec_file.append('%doc ' + ' '.join(self.doc_files)) + + if self.changelog: + spec_file.extend([ + '', + '%changelog', + ]) + spec_file.extend(self.changelog) + + return spec_file + + def _format_changelog(self, changelog): + """Format the changelog correctly and convert it to a list of strings""" + if not changelog: + return changelog + new_changelog = [] + for line in changelog.strip().split('\n'): + line = line.strip() + if line[0] == '*': + new_changelog.extend(['', line]) + elif line[0] == '-': + new_changelog.append(line) + else: + new_changelog.append(' ' + line) + + # strip trailing newline inserted by first changelog entry + if not new_changelog[0]: + del new_changelog[0] + + return new_changelog diff --git a/setuptools/_distutils/command/build.py b/setuptools/_distutils/command/build.py new file mode 100644 index 0000000000..6a8303a954 --- /dev/null +++ b/setuptools/_distutils/command/build.py @@ -0,0 +1,156 @@ +"""distutils.command.build + +Implements the Distutils 'build' command.""" + +from __future__ import annotations + +import os +import sys +import sysconfig +from collections.abc import Callable +from typing import ClassVar + +from ..ccompiler import show_compilers +from ..core import Command +from ..errors import DistutilsOptionError +from ..util import get_platform + + +class build(Command): + description = "build everything needed to install" + + user_options = [ + ('build-base=', 'b', "base directory for build library"), + ('build-purelib=', None, "build directory for platform-neutral distributions"), + ('build-platlib=', None, "build directory for platform-specific distributions"), + ( + 'build-lib=', + None, + "build directory for all distribution (defaults to either build-purelib or build-platlib", + ), + ('build-scripts=', None, "build directory for scripts"), + ('build-temp=', 't', "temporary build directory"), + ( + 'plat-name=', + 'p', + f"platform name to build for, if supported [default: {get_platform()}]", + ), + ('compiler=', 'c', "specify the compiler type"), + ('parallel=', 'j', "number of parallel build jobs"), + ('debug', 'g', "compile extensions and libraries with debugging information"), + ('force', 'f', "forcibly build everything (ignore file timestamps)"), + ('executable=', 'e', "specify final destination interpreter path (build.py)"), + ] + + boolean_options: ClassVar[list[str]] = ['debug', 'force'] + + help_options: ClassVar[list[tuple[str, str | None, str, Callable[[], object]]]] = [ + ('help-compiler', None, "list available compilers", show_compilers), + ] + + def initialize_options(self): + self.build_base = 'build' + # these are decided only after 'build_base' has its final value + # (unless overridden by the user or client) + self.build_purelib = None + self.build_platlib = None + self.build_lib = None + self.build_temp = None + self.build_scripts = None + self.compiler = None + self.plat_name = None + self.debug = None + self.force = False + self.executable = None + self.parallel = None + + def finalize_options(self) -> None: # noqa: C901 + if self.plat_name is None: + self.plat_name = get_platform() + else: + # plat-name only supported for windows (other platforms are + # supported via ./configure flags, if at all). Avoid misleading + # other platforms. + if os.name != 'nt': + raise DistutilsOptionError( + "--plat-name only supported on Windows (try " + "using './configure --help' on your platform)" + ) + + plat_specifier = f".{self.plat_name}-{sys.implementation.cache_tag}" + + # Python 3.13+ with --disable-gil shouldn't share build directories + if sysconfig.get_config_var('Py_GIL_DISABLED'): + plat_specifier += 't' + + # Make it so Python 2.x and Python 2.x with --with-pydebug don't + # share the same build directories. Doing so confuses the build + # process for C modules + if hasattr(sys, 'gettotalrefcount'): + plat_specifier += '-pydebug' + + # 'build_purelib' and 'build_platlib' just default to 'lib' and + # 'lib.' under the base build directory. We only use one of + # them for a given distribution, though -- + if self.build_purelib is None: + self.build_purelib = os.path.join(self.build_base, 'lib') + if self.build_platlib is None: + self.build_platlib = os.path.join(self.build_base, 'lib' + plat_specifier) + + # 'build_lib' is the actual directory that we will use for this + # particular module distribution -- if user didn't supply it, pick + # one of 'build_purelib' or 'build_platlib'. + if self.build_lib is None: + if self.distribution.has_ext_modules(): + self.build_lib = self.build_platlib + else: + self.build_lib = self.build_purelib + + # 'build_temp' -- temporary directory for compiler turds, + # "build/temp." + if self.build_temp is None: + self.build_temp = os.path.join(self.build_base, 'temp' + plat_specifier) + if self.build_scripts is None: + self.build_scripts = os.path.join( + self.build_base, + f'scripts-{sys.version_info.major}.{sys.version_info.minor}', + ) + + if self.executable is None and sys.executable: + self.executable = os.path.normpath(sys.executable) + + if isinstance(self.parallel, str): + try: + self.parallel = int(self.parallel) + except ValueError: + raise DistutilsOptionError("parallel should be an integer") + + def run(self) -> None: + # Run all relevant sub-commands. This will be some subset of: + # - build_py - pure Python modules + # - build_clib - standalone C libraries + # - build_ext - Python extensions + # - build_scripts - (Python) scripts + for cmd_name in self.get_sub_commands(): + self.run_command(cmd_name) + + # -- Predicates for the sub-command list --------------------------- + + def has_pure_modules(self): + return self.distribution.has_pure_modules() + + def has_c_libraries(self): + return self.distribution.has_c_libraries() + + def has_ext_modules(self): + return self.distribution.has_ext_modules() + + def has_scripts(self): + return self.distribution.has_scripts() + + sub_commands = [ + ('build_py', has_pure_modules), + ('build_clib', has_c_libraries), + ('build_ext', has_ext_modules), + ('build_scripts', has_scripts), + ] diff --git a/setuptools/_distutils/command/build_clib.py b/setuptools/_distutils/command/build_clib.py new file mode 100644 index 0000000000..8b65b3d8ec --- /dev/null +++ b/setuptools/_distutils/command/build_clib.py @@ -0,0 +1,201 @@ +"""distutils.command.build_clib + +Implements the Distutils 'build_clib' command, to build a C/C++ library +that is included in the module distribution and needed by an extension +module.""" + +# XXX this module has *lots* of code ripped-off quite transparently from +# build_ext.py -- not surprisingly really, as the work required to build +# a static library from a collection of C source files is not really all +# that different from what's required to build a shared object file from +# a collection of C source files. Nevertheless, I haven't done the +# necessary refactoring to account for the overlap in code between the +# two modules, mainly because a number of subtle details changed in the +# cut 'n paste. Sigh. +from __future__ import annotations + +import os +from collections.abc import Callable +from distutils._log import log +from typing import ClassVar + +from ..ccompiler import new_compiler, show_compilers +from ..core import Command +from ..errors import DistutilsSetupError +from ..sysconfig import customize_compiler + + +class build_clib(Command): + description = "build C/C++ libraries used by Python extensions" + + user_options: ClassVar[list[tuple[str, str, str]]] = [ + ('build-clib=', 'b', "directory to build C/C++ libraries to"), + ('build-temp=', 't', "directory to put temporary build by-products"), + ('debug', 'g', "compile with debugging information"), + ('force', 'f', "forcibly build everything (ignore file timestamps)"), + ('compiler=', 'c', "specify the compiler type"), + ] + + boolean_options: ClassVar[list[str]] = ['debug', 'force'] + + help_options: ClassVar[list[tuple[str, str | None, str, Callable[[], object]]]] = [ + ('help-compiler', None, "list available compilers", show_compilers), + ] + + def initialize_options(self): + self.build_clib = None + self.build_temp = None + + # List of libraries to build + self.libraries = None + + # Compilation options for all libraries + self.include_dirs = None + self.define = None + self.undef = None + self.debug = None + self.force = False + self.compiler = None + + def finalize_options(self) -> None: + # This might be confusing: both build-clib and build-temp default + # to build-temp as defined by the "build" command. This is because + # I think that C libraries are really just temporary build + # by-products, at least from the point of view of building Python + # extensions -- but I want to keep my options open. + self.set_undefined_options( + 'build', + ('build_temp', 'build_clib'), + ('build_temp', 'build_temp'), + ('compiler', 'compiler'), + ('debug', 'debug'), + ('force', 'force'), + ) + + self.libraries = self.distribution.libraries + if self.libraries: + self.check_library_list(self.libraries) + + if self.include_dirs is None: + self.include_dirs = self.distribution.include_dirs or [] + if isinstance(self.include_dirs, str): + self.include_dirs = self.include_dirs.split(os.pathsep) + + # XXX same as for build_ext -- what about 'self.define' and + # 'self.undef' ? + + def run(self) -> None: + if not self.libraries: + return + + self.compiler = new_compiler( + compiler=self.compiler, dry_run=self.dry_run, force=self.force + ) + customize_compiler(self.compiler) + + if self.include_dirs is not None: + self.compiler.set_include_dirs(self.include_dirs) + if self.define is not None: + # 'define' option is a list of (name,value) tuples + for name, value in self.define: + self.compiler.define_macro(name, value) + if self.undef is not None: + for macro in self.undef: + self.compiler.undefine_macro(macro) + + self.build_libraries(self.libraries) + + def check_library_list(self, libraries) -> None: + """Ensure that the list of libraries is valid. + + `library` is presumably provided as a command option 'libraries'. + This method checks that it is a list of 2-tuples, where the tuples + are (library_name, build_info_dict). + + Raise DistutilsSetupError if the structure is invalid anywhere; + just returns otherwise. + """ + if not isinstance(libraries, list): + raise DistutilsSetupError("'libraries' option must be a list of tuples") + + for lib in libraries: + if not isinstance(lib, tuple) and len(lib) != 2: + raise DistutilsSetupError("each element of 'libraries' must a 2-tuple") + + name, build_info = lib + + if not isinstance(name, str): + raise DistutilsSetupError( + "first element of each tuple in 'libraries' " + "must be a string (the library name)" + ) + + if '/' in name or (os.sep != '/' and os.sep in name): + raise DistutilsSetupError( + f"bad library name '{lib[0]}': may not contain directory separators" + ) + + if not isinstance(build_info, dict): + raise DistutilsSetupError( + "second element of each tuple in 'libraries' " + "must be a dictionary (build info)" + ) + + def get_library_names(self): + # Assume the library list is valid -- 'check_library_list()' is + # called from 'finalize_options()', so it should be! + if not self.libraries: + return None + + lib_names = [] + for lib_name, _build_info in self.libraries: + lib_names.append(lib_name) + return lib_names + + def get_source_files(self): + self.check_library_list(self.libraries) + filenames = [] + for lib_name, build_info in self.libraries: + sources = build_info.get('sources') + if sources is None or not isinstance(sources, (list, tuple)): + raise DistutilsSetupError( + f"in 'libraries' option (library '{lib_name}'), " + "'sources' must be present and must be " + "a list of source filenames" + ) + + filenames.extend(sources) + return filenames + + def build_libraries(self, libraries) -> None: + for lib_name, build_info in libraries: + sources = build_info.get('sources') + if sources is None or not isinstance(sources, (list, tuple)): + raise DistutilsSetupError( + f"in 'libraries' option (library '{lib_name}'), " + "'sources' must be present and must be " + "a list of source filenames" + ) + sources = list(sources) + + log.info("building '%s' library", lib_name) + + # First, compile the source code to object files in the library + # directory. (This should probably change to putting object + # files in a temporary build directory.) + macros = build_info.get('macros') + include_dirs = build_info.get('include_dirs') + objects = self.compiler.compile( + sources, + output_dir=self.build_temp, + macros=macros, + include_dirs=include_dirs, + debug=self.debug, + ) + + # Now "link" the object files together into a static library. + # (On Unix at least, this isn't really linking -- it just + # builds an archive. Whatever.) + self.compiler.create_static_lib( + objects, lib_name, output_dir=self.build_clib, debug=self.debug + ) diff --git a/setuptools/_distutils/command/build_ext.py b/setuptools/_distutils/command/build_ext.py new file mode 100644 index 0000000000..ec45b4403e --- /dev/null +++ b/setuptools/_distutils/command/build_ext.py @@ -0,0 +1,812 @@ +"""distutils.command.build_ext + +Implements the Distutils 'build_ext' command, for building extension +modules (currently limited to C extensions, should accommodate C++ +extensions ASAP).""" + +from __future__ import annotations + +import contextlib +import os +import re +import sys +from collections.abc import Callable +from distutils._log import log +from site import USER_BASE +from typing import ClassVar + +from .._modified import newer_group +from ..ccompiler import new_compiler, show_compilers +from ..core import Command +from ..errors import ( + CCompilerError, + CompileError, + DistutilsError, + DistutilsOptionError, + DistutilsPlatformError, + DistutilsSetupError, +) +from ..extension import Extension +from ..sysconfig import customize_compiler, get_config_h_filename, get_python_version +from ..util import get_platform, is_freethreaded, is_mingw + +# An extension name is just a dot-separated list of Python NAMEs (ie. +# the same as a fully-qualified module name). +extension_name_re = re.compile(r'^[a-zA-Z_][a-zA-Z_0-9]*(\.[a-zA-Z_][a-zA-Z_0-9]*)*$') + + +class build_ext(Command): + description = "build C/C++ extensions (compile/link to build directory)" + + # XXX thoughts on how to deal with complex command-line options like + # these, i.e. how to make it so fancy_getopt can suck them off the + # command line and make it look like setup.py defined the appropriate + # lists of tuples of what-have-you. + # - each command needs a callback to process its command-line options + # - Command.__init__() needs access to its share of the whole + # command line (must ultimately come from + # Distribution.parse_command_line()) + # - it then calls the current command class' option-parsing + # callback to deal with weird options like -D, which have to + # parse the option text and churn out some custom data + # structure + # - that data structure (in this case, a list of 2-tuples) + # will then be present in the command object by the time + # we get to finalize_options() (i.e. the constructor + # takes care of both command-line and client options + # in between initialize_options() and finalize_options()) + + sep_by = f" (separated by '{os.pathsep}')" + user_options = [ + ('build-lib=', 'b', "directory for compiled extension modules"), + ('build-temp=', 't', "directory for temporary files (build by-products)"), + ( + 'plat-name=', + 'p', + "platform name to cross-compile for, if supported " + f"[default: {get_platform()}]", + ), + ( + 'inplace', + 'i', + "ignore build-lib and put compiled extensions into the source " + "directory alongside your pure Python modules", + ), + ( + 'include-dirs=', + 'I', + "list of directories to search for header files" + sep_by, + ), + ('define=', 'D', "C preprocessor macros to define"), + ('undef=', 'U', "C preprocessor macros to undefine"), + ('libraries=', 'l', "external C libraries to link with"), + ( + 'library-dirs=', + 'L', + "directories to search for external C libraries" + sep_by, + ), + ('rpath=', 'R', "directories to search for shared C libraries at runtime"), + ('link-objects=', 'O', "extra explicit link objects to include in the link"), + ('debug', 'g', "compile/link with debugging information"), + ('force', 'f', "forcibly build everything (ignore file timestamps)"), + ('compiler=', 'c', "specify the compiler type"), + ('parallel=', 'j', "number of parallel build jobs"), + ('swig-cpp', None, "make SWIG create C++ files (default is C)"), + ('swig-opts=', None, "list of SWIG command line options"), + ('swig=', None, "path to the SWIG executable"), + ('user', None, "add user include, library and rpath"), + ] + + boolean_options: ClassVar[list[str]] = [ + 'inplace', + 'debug', + 'force', + 'swig-cpp', + 'user', + ] + + help_options: ClassVar[list[tuple[str, str | None, str, Callable[[], object]]]] = [ + ('help-compiler', None, "list available compilers", show_compilers), + ] + + def initialize_options(self): + self.extensions = None + self.build_lib = None + self.plat_name = None + self.build_temp = None + self.inplace = False + self.package = None + + self.include_dirs = None + self.define = None + self.undef = None + self.libraries = None + self.library_dirs = None + self.rpath = None + self.link_objects = None + self.debug = None + self.force = None + self.compiler = None + self.swig = None + self.swig_cpp = None + self.swig_opts = None + self.user = None + self.parallel = None + + @staticmethod + def _python_lib_dir(sysconfig): + """ + Resolve Python's library directory for building extensions + that rely on a shared Python library. + + See python/cpython#44264 and python/cpython#48686 + """ + if not sysconfig.get_config_var('Py_ENABLE_SHARED'): + return + + if sysconfig.python_build: + yield '.' + return + + if sys.platform == 'zos': + # On z/OS, a user is not required to install Python to + # a predetermined path, but can use Python portably + installed_dir = sysconfig.get_config_var('base') + lib_dir = sysconfig.get_config_var('platlibdir') + yield os.path.join(installed_dir, lib_dir) + else: + # building third party extensions + yield sysconfig.get_config_var('LIBDIR') + + def finalize_options(self) -> None: # noqa: C901 + from distutils import sysconfig + + self.set_undefined_options( + 'build', + ('build_lib', 'build_lib'), + ('build_temp', 'build_temp'), + ('compiler', 'compiler'), + ('debug', 'debug'), + ('force', 'force'), + ('parallel', 'parallel'), + ('plat_name', 'plat_name'), + ) + + if self.package is None: + self.package = self.distribution.ext_package + + self.extensions = self.distribution.ext_modules + + # Make sure Python's include directories (for Python.h, pyconfig.h, + # etc.) are in the include search path. + py_include = sysconfig.get_python_inc() + plat_py_include = sysconfig.get_python_inc(plat_specific=True) + if self.include_dirs is None: + self.include_dirs = self.distribution.include_dirs or [] + if isinstance(self.include_dirs, str): + self.include_dirs = self.include_dirs.split(os.pathsep) + + # If in a virtualenv, add its include directory + # Issue 16116 + if sys.exec_prefix != sys.base_exec_prefix: + self.include_dirs.append(os.path.join(sys.exec_prefix, 'include')) + + # Put the Python "system" include dir at the end, so that + # any local include dirs take precedence. + self.include_dirs.extend(py_include.split(os.path.pathsep)) + if plat_py_include != py_include: + self.include_dirs.extend(plat_py_include.split(os.path.pathsep)) + + self.ensure_string_list('libraries') + self.ensure_string_list('link_objects') + + # Life is easier if we're not forever checking for None, so + # simplify these options to empty lists if unset + if self.libraries is None: + self.libraries = [] + if self.library_dirs is None: + self.library_dirs = [] + elif isinstance(self.library_dirs, str): + self.library_dirs = self.library_dirs.split(os.pathsep) + + if self.rpath is None: + self.rpath = [] + elif isinstance(self.rpath, str): + self.rpath = self.rpath.split(os.pathsep) + + # for extensions under windows use different directories + # for Release and Debug builds. + # also Python's library directory must be appended to library_dirs + if os.name == 'nt' and not is_mingw(): + # the 'libs' directory is for binary installs - we assume that + # must be the *native* platform. But we don't really support + # cross-compiling via a binary install anyway, so we let it go. + self.library_dirs.append(os.path.join(sys.exec_prefix, 'libs')) + if sys.base_exec_prefix != sys.prefix: # Issue 16116 + self.library_dirs.append(os.path.join(sys.base_exec_prefix, 'libs')) + if self.debug: + self.build_temp = os.path.join(self.build_temp, "Debug") + else: + self.build_temp = os.path.join(self.build_temp, "Release") + + # Append the source distribution include and library directories, + # this allows distutils on windows to work in the source tree + self.include_dirs.append(os.path.dirname(get_config_h_filename())) + self.library_dirs.append(sys.base_exec_prefix) + + # Use the .lib files for the correct architecture + if self.plat_name == 'win32': + suffix = 'win32' + else: + # win-amd64 + suffix = self.plat_name[4:] + new_lib = os.path.join(sys.exec_prefix, 'PCbuild') + if suffix: + new_lib = os.path.join(new_lib, suffix) + self.library_dirs.append(new_lib) + + # For extensions under Cygwin, Python's library directory must be + # appended to library_dirs + if sys.platform[:6] == 'cygwin': + if not sysconfig.python_build: + # building third party extensions + self.library_dirs.append( + os.path.join( + sys.prefix, "lib", "python" + get_python_version(), "config" + ) + ) + else: + # building python standard extensions + self.library_dirs.append('.') + + self.library_dirs.extend(self._python_lib_dir(sysconfig)) + + # The argument parsing will result in self.define being a string, but + # it has to be a list of 2-tuples. All the preprocessor symbols + # specified by the 'define' option will be set to '1'. Multiple + # symbols can be separated with commas. + + if self.define: + defines = self.define.split(',') + self.define = [(symbol, '1') for symbol in defines] + + # The option for macros to undefine is also a string from the + # option parsing, but has to be a list. Multiple symbols can also + # be separated with commas here. + if self.undef: + self.undef = self.undef.split(',') + + if self.swig_opts is None: + self.swig_opts = [] + else: + self.swig_opts = self.swig_opts.split(' ') + + # Finally add the user include and library directories if requested + if self.user: + user_include = os.path.join(USER_BASE, "include") + user_lib = os.path.join(USER_BASE, "lib") + if os.path.isdir(user_include): + self.include_dirs.append(user_include) + if os.path.isdir(user_lib): + self.library_dirs.append(user_lib) + self.rpath.append(user_lib) + + if isinstance(self.parallel, str): + try: + self.parallel = int(self.parallel) + except ValueError: + raise DistutilsOptionError("parallel should be an integer") + + def run(self) -> None: # noqa: C901 + # 'self.extensions', as supplied by setup.py, is a list of + # Extension instances. See the documentation for Extension (in + # distutils.extension) for details. + # + # For backwards compatibility with Distutils 0.8.2 and earlier, we + # also allow the 'extensions' list to be a list of tuples: + # (ext_name, build_info) + # where build_info is a dictionary containing everything that + # Extension instances do except the name, with a few things being + # differently named. We convert these 2-tuples to Extension + # instances as needed. + + if not self.extensions: + return + + # If we were asked to build any C/C++ libraries, make sure that the + # directory where we put them is in the library search path for + # linking extensions. + if self.distribution.has_c_libraries(): + build_clib = self.get_finalized_command('build_clib') + self.libraries.extend(build_clib.get_library_names() or []) + self.library_dirs.append(build_clib.build_clib) + + # Setup the CCompiler object that we'll use to do all the + # compiling and linking + self.compiler = new_compiler( + compiler=self.compiler, + verbose=self.verbose, + dry_run=self.dry_run, + force=self.force, + ) + customize_compiler(self.compiler) + # If we are cross-compiling, init the compiler now (if we are not + # cross-compiling, init would not hurt, but people may rely on + # late initialization of compiler even if they shouldn't...) + if os.name == 'nt' and self.plat_name != get_platform(): + self.compiler.initialize(self.plat_name) + + # The official Windows free threaded Python installer doesn't set + # Py_GIL_DISABLED because its pyconfig.h is shared with the + # default build, so define it here (pypa/setuptools#4662). + if os.name == 'nt' and is_freethreaded(): + self.compiler.define_macro('Py_GIL_DISABLED', '1') + + # And make sure that any compile/link-related options (which might + # come from the command-line or from the setup script) are set in + # that CCompiler object -- that way, they automatically apply to + # all compiling and linking done here. + if self.include_dirs is not None: + self.compiler.set_include_dirs(self.include_dirs) + if self.define is not None: + # 'define' option is a list of (name,value) tuples + for name, value in self.define: + self.compiler.define_macro(name, value) + if self.undef is not None: + for macro in self.undef: + self.compiler.undefine_macro(macro) + if self.libraries is not None: + self.compiler.set_libraries(self.libraries) + if self.library_dirs is not None: + self.compiler.set_library_dirs(self.library_dirs) + if self.rpath is not None: + self.compiler.set_runtime_library_dirs(self.rpath) + if self.link_objects is not None: + self.compiler.set_link_objects(self.link_objects) + + # Now actually compile and link everything. + self.build_extensions() + + def check_extensions_list(self, extensions) -> None: # noqa: C901 + """Ensure that the list of extensions (presumably provided as a + command option 'extensions') is valid, i.e. it is a list of + Extension objects. We also support the old-style list of 2-tuples, + where the tuples are (ext_name, build_info), which are converted to + Extension instances here. + + Raise DistutilsSetupError if the structure is invalid anywhere; + just returns otherwise. + """ + if not isinstance(extensions, list): + raise DistutilsSetupError( + "'ext_modules' option must be a list of Extension instances" + ) + + for i, ext in enumerate(extensions): + if isinstance(ext, Extension): + continue # OK! (assume type-checking done + # by Extension constructor) + + if not isinstance(ext, tuple) or len(ext) != 2: + raise DistutilsSetupError( + "each element of 'ext_modules' option must be an " + "Extension instance or 2-tuple" + ) + + ext_name, build_info = ext + + log.warning( + "old-style (ext_name, build_info) tuple found in " + "ext_modules for extension '%s' " + "-- please convert to Extension instance", + ext_name, + ) + + if not (isinstance(ext_name, str) and extension_name_re.match(ext_name)): + raise DistutilsSetupError( + "first element of each tuple in 'ext_modules' " + "must be the extension name (a string)" + ) + + if not isinstance(build_info, dict): + raise DistutilsSetupError( + "second element of each tuple in 'ext_modules' " + "must be a dictionary (build info)" + ) + + # OK, the (ext_name, build_info) dict is type-safe: convert it + # to an Extension instance. + ext = Extension(ext_name, build_info['sources']) + + # Easy stuff: one-to-one mapping from dict elements to + # instance attributes. + for key in ( + 'include_dirs', + 'library_dirs', + 'libraries', + 'extra_objects', + 'extra_compile_args', + 'extra_link_args', + ): + val = build_info.get(key) + if val is not None: + setattr(ext, key, val) + + # Medium-easy stuff: same syntax/semantics, different names. + ext.runtime_library_dirs = build_info.get('rpath') + if 'def_file' in build_info: + log.warning("'def_file' element of build info dict no longer supported") + + # Non-trivial stuff: 'macros' split into 'define_macros' + # and 'undef_macros'. + macros = build_info.get('macros') + if macros: + ext.define_macros = [] + ext.undef_macros = [] + for macro in macros: + if not (isinstance(macro, tuple) and len(macro) in (1, 2)): + raise DistutilsSetupError( + "'macros' element of build info dict must be 1- or 2-tuple" + ) + if len(macro) == 1: + ext.undef_macros.append(macro[0]) + elif len(macro) == 2: + ext.define_macros.append(macro) + + extensions[i] = ext + + def get_source_files(self): + self.check_extensions_list(self.extensions) + filenames = [] + + # Wouldn't it be neat if we knew the names of header files too... + for ext in self.extensions: + filenames.extend(ext.sources) + return filenames + + def get_outputs(self): + # Sanity check the 'extensions' list -- can't assume this is being + # done in the same run as a 'build_extensions()' call (in fact, we + # can probably assume that it *isn't*!). + self.check_extensions_list(self.extensions) + + # And build the list of output (built) filenames. Note that this + # ignores the 'inplace' flag, and assumes everything goes in the + # "build" tree. + return [self.get_ext_fullpath(ext.name) for ext in self.extensions] + + def build_extensions(self) -> None: + # First, sanity-check the 'extensions' list + self.check_extensions_list(self.extensions) + if self.parallel: + self._build_extensions_parallel() + else: + self._build_extensions_serial() + + def _build_extensions_parallel(self): + workers = self.parallel + if self.parallel is True: + workers = os.cpu_count() # may return None + try: + from concurrent.futures import ThreadPoolExecutor + except ImportError: + workers = None + + if workers is None: + self._build_extensions_serial() + return + + with ThreadPoolExecutor(max_workers=workers) as executor: + futures = [ + executor.submit(self.build_extension, ext) for ext in self.extensions + ] + for ext, fut in zip(self.extensions, futures): + with self._filter_build_errors(ext): + fut.result() + + def _build_extensions_serial(self): + for ext in self.extensions: + with self._filter_build_errors(ext): + self.build_extension(ext) + + @contextlib.contextmanager + def _filter_build_errors(self, ext): + try: + yield + except (CCompilerError, DistutilsError, CompileError) as e: + if not ext.optional: + raise + self.warn(f'building extension "{ext.name}" failed: {e}') + + def build_extension(self, ext) -> None: + sources = ext.sources + if sources is None or not isinstance(sources, (list, tuple)): + raise DistutilsSetupError( + f"in 'ext_modules' option (extension '{ext.name}'), " + "'sources' must be present and must be " + "a list of source filenames" + ) + # sort to make the resulting .so file build reproducible + sources = sorted(sources) + + ext_path = self.get_ext_fullpath(ext.name) + depends = sources + ext.depends + if not (self.force or newer_group(depends, ext_path, 'newer')): + log.debug("skipping '%s' extension (up-to-date)", ext.name) + return + else: + log.info("building '%s' extension", ext.name) + + # First, scan the sources for SWIG definition files (.i), run + # SWIG on 'em to create .c files, and modify the sources list + # accordingly. + sources = self.swig_sources(sources, ext) + + # Next, compile the source code to object files. + + # XXX not honouring 'define_macros' or 'undef_macros' -- the + # CCompiler API needs to change to accommodate this, and I + # want to do one thing at a time! + + # Two possible sources for extra compiler arguments: + # - 'extra_compile_args' in Extension object + # - CFLAGS environment variable (not particularly + # elegant, but people seem to expect it and I + # guess it's useful) + # The environment variable should take precedence, and + # any sensible compiler will give precedence to later + # command line args. Hence we combine them in order: + extra_args = ext.extra_compile_args or [] + + macros = ext.define_macros[:] + for undef in ext.undef_macros: + macros.append((undef,)) + + objects = self.compiler.compile( + sources, + output_dir=self.build_temp, + macros=macros, + include_dirs=ext.include_dirs, + debug=self.debug, + extra_postargs=extra_args, + depends=ext.depends, + ) + + # XXX outdated variable, kept here in case third-part code + # needs it. + self._built_objects = objects[:] + + # Now link the object files together into a "shared object" -- + # of course, first we have to figure out all the other things + # that go into the mix. + if ext.extra_objects: + objects.extend(ext.extra_objects) + extra_args = ext.extra_link_args or [] + + # Detect target language, if not provided + language = ext.language or self.compiler.detect_language(sources) + + self.compiler.link_shared_object( + objects, + ext_path, + libraries=self.get_libraries(ext), + library_dirs=ext.library_dirs, + runtime_library_dirs=ext.runtime_library_dirs, + extra_postargs=extra_args, + export_symbols=self.get_export_symbols(ext), + debug=self.debug, + build_temp=self.build_temp, + target_lang=language, + ) + + def swig_sources(self, sources, extension): + """Walk the list of source files in 'sources', looking for SWIG + interface (.i) files. Run SWIG on all that are found, and + return a modified 'sources' list with SWIG source files replaced + by the generated C (or C++) files. + """ + new_sources = [] + swig_sources = [] + swig_targets = {} + + # XXX this drops generated C/C++ files into the source tree, which + # is fine for developers who want to distribute the generated + # source -- but there should be an option to put SWIG output in + # the temp dir. + + if self.swig_cpp: + log.warning("--swig-cpp is deprecated - use --swig-opts=-c++") + + if ( + self.swig_cpp + or ('-c++' in self.swig_opts) + or ('-c++' in extension.swig_opts) + ): + target_ext = '.cpp' + else: + target_ext = '.c' + + for source in sources: + (base, ext) = os.path.splitext(source) + if ext == ".i": # SWIG interface file + new_sources.append(base + '_wrap' + target_ext) + swig_sources.append(source) + swig_targets[source] = new_sources[-1] + else: + new_sources.append(source) + + if not swig_sources: + return new_sources + + swig = self.swig or self.find_swig() + swig_cmd = [swig, "-python"] + swig_cmd.extend(self.swig_opts) + if self.swig_cpp: + swig_cmd.append("-c++") + + # Do not override commandline arguments + if not self.swig_opts: + swig_cmd.extend(extension.swig_opts) + + for source in swig_sources: + target = swig_targets[source] + log.info("swigging %s to %s", source, target) + self.spawn(swig_cmd + ["-o", target, source]) + + return new_sources + + def find_swig(self): + """Return the name of the SWIG executable. On Unix, this is + just "swig" -- it should be in the PATH. Tries a bit harder on + Windows. + """ + if os.name == "posix": + return "swig" + elif os.name == "nt": + # Look for SWIG in its standard installation directory on + # Windows (or so I presume!). If we find it there, great; + # if not, act like Unix and assume it's in the PATH. + for vers in ("1.3", "1.2", "1.1"): + fn = os.path.join(f"c:\\swig{vers}", "swig.exe") + if os.path.isfile(fn): + return fn + else: + return "swig.exe" + else: + raise DistutilsPlatformError( + f"I don't know how to find (much less run) SWIG on platform '{os.name}'" + ) + + # -- Name generators ----------------------------------------------- + # (extension names, filenames, whatever) + def get_ext_fullpath(self, ext_name: str) -> str: + """Returns the path of the filename for a given extension. + + The file is located in `build_lib` or directly in the package + (inplace option). + """ + fullname = self.get_ext_fullname(ext_name) + modpath = fullname.split('.') + filename = self.get_ext_filename(modpath[-1]) + + if not self.inplace: + # no further work needed + # returning : + # build_dir/package/path/filename + filename = os.path.join(*modpath[:-1] + [filename]) + return os.path.join(self.build_lib, filename) + + # the inplace option requires to find the package directory + # using the build_py command for that + package = '.'.join(modpath[0:-1]) + build_py = self.get_finalized_command('build_py') + package_dir = os.path.abspath(build_py.get_package_dir(package)) + + # returning + # package_dir/filename + return os.path.join(package_dir, filename) + + def get_ext_fullname(self, ext_name: str) -> str: + """Returns the fullname of a given extension name. + + Adds the `package.` prefix""" + if self.package is None: + return ext_name + else: + return self.package + '.' + ext_name + + def get_ext_filename(self, ext_name: str) -> str: + r"""Convert the name of an extension (eg. "foo.bar") into the name + of the file from which it will be loaded (eg. "foo/bar.so", or + "foo\bar.pyd"). + """ + from ..sysconfig import get_config_var + + ext_path = ext_name.split('.') + ext_suffix = get_config_var('EXT_SUFFIX') + return os.path.join(*ext_path) + ext_suffix + + def get_export_symbols(self, ext: Extension) -> list[str]: + """Return the list of symbols that a shared extension has to + export. This either uses 'ext.export_symbols' or, if it's not + provided, "PyInit_" + module_name. Only relevant on Windows, where + the .pyd file (DLL) must export the module "PyInit_" function. + """ + name = self._get_module_name_for_symbol(ext) + try: + # Unicode module name support as defined in PEP-489 + # https://peps.python.org/pep-0489/#export-hook-name + name.encode('ascii') + except UnicodeEncodeError: + suffix = 'U_' + name.encode('punycode').replace(b'-', b'_').decode('ascii') + else: + suffix = "_" + name + + initfunc_name = "PyInit" + suffix + if initfunc_name not in ext.export_symbols: + ext.export_symbols.append(initfunc_name) + return ext.export_symbols + + def _get_module_name_for_symbol(self, ext): + # Package name should be used for `__init__` modules + # https://github.com/python/cpython/issues/80074 + # https://github.com/pypa/setuptools/issues/4826 + parts = ext.name.split(".") + if parts[-1] == "__init__" and len(parts) >= 2: + return parts[-2] + return parts[-1] + + def get_libraries(self, ext: Extension) -> list[str]: # noqa: C901 + """Return the list of libraries to link against when building a + shared extension. On most platforms, this is just 'ext.libraries'; + on Windows, we add the Python library (eg. python20.dll). + """ + # The python library is always needed on Windows. For MSVC, this + # is redundant, since the library is mentioned in a pragma in + # pyconfig.h that MSVC groks. The other Windows compilers all seem + # to need it mentioned explicitly, though, so that's what we do. + # Append '_d' to the python import library on debug builds. + if sys.platform == "win32" and not is_mingw(): + from .._msvccompiler import MSVCCompiler + + if not isinstance(self.compiler, MSVCCompiler): + template = "python%d%d" + if self.debug: + template = template + '_d' + pythonlib = template % ( + sys.hexversion >> 24, + (sys.hexversion >> 16) & 0xFF, + ) + # don't extend ext.libraries, it may be shared with other + # extensions, it is a reference to the original list + return ext.libraries + [pythonlib] + else: + # On Android only the main executable and LD_PRELOADs are considered + # to be RTLD_GLOBAL, all the dependencies of the main executable + # remain RTLD_LOCAL and so the shared libraries must be linked with + # libpython when python is built with a shared python library (issue + # bpo-21536). + # On Cygwin (and if required, other POSIX-like platforms based on + # Windows like MinGW) it is simply necessary that all symbols in + # shared libraries are resolved at link time. + from ..sysconfig import get_config_var + + link_libpython = False + if get_config_var('Py_ENABLE_SHARED'): + # A native build on an Android device or on Cygwin + if hasattr(sys, 'getandroidapilevel'): + link_libpython = True + elif sys.platform == 'cygwin' or is_mingw(): + link_libpython = True + elif '_PYTHON_HOST_PLATFORM' in os.environ: + # We are cross-compiling for one of the relevant platforms + if get_config_var('ANDROID_API_LEVEL') != 0: + link_libpython = True + elif get_config_var('MACHDEP') == 'cygwin': + link_libpython = True + + if link_libpython: + ldversion = get_config_var('LDVERSION') + return ext.libraries + ['python' + ldversion] + + return ext.libraries diff --git a/setuptools/_distutils/command/build_py.py b/setuptools/_distutils/command/build_py.py new file mode 100644 index 0000000000..a20b076fe7 --- /dev/null +++ b/setuptools/_distutils/command/build_py.py @@ -0,0 +1,407 @@ +"""distutils.command.build_py + +Implements the Distutils 'build_py' command.""" + +import glob +import importlib.util +import os +import sys +from distutils._log import log +from typing import ClassVar + +from ..core import Command +from ..errors import DistutilsFileError, DistutilsOptionError +from ..util import convert_path + + +class build_py(Command): + description = "\"build\" pure Python modules (copy to build directory)" + + user_options = [ + ('build-lib=', 'd', "directory to \"build\" (copy) to"), + ('compile', 'c', "compile .py to .pyc"), + ('no-compile', None, "don't compile .py files [default]"), + ( + 'optimize=', + 'O', + "also compile with optimization: -O1 for \"python -O\", " + "-O2 for \"python -OO\", and -O0 to disable [default: -O0]", + ), + ('force', 'f', "forcibly build everything (ignore file timestamps)"), + ] + + boolean_options: ClassVar[list[str]] = ['compile', 'force'] + negative_opt: ClassVar[dict[str, str]] = {'no-compile': 'compile'} + + def initialize_options(self): + self.build_lib = None + self.py_modules = None + self.package = None + self.package_data = None + self.package_dir = None + self.compile = False + self.optimize = 0 + self.force = None + + def finalize_options(self) -> None: + self.set_undefined_options( + 'build', ('build_lib', 'build_lib'), ('force', 'force') + ) + + # Get the distribution options that are aliases for build_py + # options -- list of packages and list of modules. + self.packages = self.distribution.packages + self.py_modules = self.distribution.py_modules + self.package_data = self.distribution.package_data + self.package_dir = {} + if self.distribution.package_dir: + for name, path in self.distribution.package_dir.items(): + self.package_dir[name] = convert_path(path) + self.data_files = self.get_data_files() + + # Ick, copied straight from install_lib.py (fancy_getopt needs a + # type system! Hell, *everything* needs a type system!!!) + if not isinstance(self.optimize, int): + try: + self.optimize = int(self.optimize) + assert 0 <= self.optimize <= 2 + except (ValueError, AssertionError): + raise DistutilsOptionError("optimize must be 0, 1, or 2") + + def run(self) -> None: + # XXX copy_file by default preserves atime and mtime. IMHO this is + # the right thing to do, but perhaps it should be an option -- in + # particular, a site administrator might want installed files to + # reflect the time of installation rather than the last + # modification time before the installed release. + + # XXX copy_file by default preserves mode, which appears to be the + # wrong thing to do: if a file is read-only in the working + # directory, we want it to be installed read/write so that the next + # installation of the same module distribution can overwrite it + # without problems. (This might be a Unix-specific issue.) Thus + # we turn off 'preserve_mode' when copying to the build directory, + # since the build directory is supposed to be exactly what the + # installation will look like (ie. we preserve mode when + # installing). + + # Two options control which modules will be installed: 'packages' + # and 'py_modules'. The former lets us work with whole packages, not + # specifying individual modules at all; the latter is for + # specifying modules one-at-a-time. + + if self.py_modules: + self.build_modules() + if self.packages: + self.build_packages() + self.build_package_data() + + self.byte_compile(self.get_outputs(include_bytecode=False)) + + def get_data_files(self): + """Generate list of '(package,src_dir,build_dir,filenames)' tuples""" + data = [] + if not self.packages: + return data + for package in self.packages: + # Locate package source directory + src_dir = self.get_package_dir(package) + + # Compute package build directory + build_dir = os.path.join(*([self.build_lib] + package.split('.'))) + + # Length of path to strip from found files + plen = 0 + if src_dir: + plen = len(src_dir) + 1 + + # Strip directory from globbed filenames + filenames = [file[plen:] for file in self.find_data_files(package, src_dir)] + data.append((package, src_dir, build_dir, filenames)) + return data + + def find_data_files(self, package, src_dir): + """Return filenames for package's data files in 'src_dir'""" + globs = self.package_data.get('', []) + self.package_data.get(package, []) + files = [] + for pattern in globs: + # Each pattern has to be converted to a platform-specific path + filelist = glob.glob( + os.path.join(glob.escape(src_dir), convert_path(pattern)) + ) + # Files that match more than one pattern are only added once + files.extend([ + fn for fn in filelist if fn not in files and os.path.isfile(fn) + ]) + return files + + def build_package_data(self) -> None: + """Copy data files into build directory""" + for _package, src_dir, build_dir, filenames in self.data_files: + for filename in filenames: + target = os.path.join(build_dir, filename) + self.mkpath(os.path.dirname(target)) + self.copy_file( + os.path.join(src_dir, filename), target, preserve_mode=False + ) + + def get_package_dir(self, package): + """Return the directory, relative to the top of the source + distribution, where package 'package' should be found + (at least according to the 'package_dir' option, if any).""" + path = package.split('.') + + if not self.package_dir: + if path: + return os.path.join(*path) + else: + return '' + else: + tail = [] + while path: + try: + pdir = self.package_dir['.'.join(path)] + except KeyError: + tail.insert(0, path[-1]) + del path[-1] + else: + tail.insert(0, pdir) + return os.path.join(*tail) + else: + # Oops, got all the way through 'path' without finding a + # match in package_dir. If package_dir defines a directory + # for the root (nameless) package, then fallback on it; + # otherwise, we might as well have not consulted + # package_dir at all, as we just use the directory implied + # by 'tail' (which should be the same as the original value + # of 'path' at this point). + pdir = self.package_dir.get('') + if pdir is not None: + tail.insert(0, pdir) + + if tail: + return os.path.join(*tail) + else: + return '' + + def check_package(self, package, package_dir): + # Empty dir name means current directory, which we can probably + # assume exists. Also, os.path.exists and isdir don't know about + # my "empty string means current dir" convention, so we have to + # circumvent them. + if package_dir != "": + if not os.path.exists(package_dir): + raise DistutilsFileError( + f"package directory '{package_dir}' does not exist" + ) + if not os.path.isdir(package_dir): + raise DistutilsFileError( + f"supposed package directory '{package_dir}' exists, " + "but is not a directory" + ) + + # Directories without __init__.py are namespace packages (PEP 420). + if package: + init_py = os.path.join(package_dir, "__init__.py") + if os.path.isfile(init_py): + return init_py + + # Either not in a package at all (__init__.py not expected), or + # __init__.py doesn't exist -- so don't return the filename. + return None + + def check_module(self, module, module_file): + if not os.path.isfile(module_file): + log.warning("file %s (for module %s) not found", module_file, module) + return False + else: + return True + + def find_package_modules(self, package, package_dir): + self.check_package(package, package_dir) + module_files = glob.glob(os.path.join(glob.escape(package_dir), "*.py")) + modules = [] + setup_script = os.path.abspath(self.distribution.script_name) + + for f in module_files: + abs_f = os.path.abspath(f) + if abs_f != setup_script: + module = os.path.splitext(os.path.basename(f))[0] + modules.append((package, module, f)) + else: + self.debug_print(f"excluding {setup_script}") + return modules + + def find_modules(self): + """Finds individually-specified Python modules, ie. those listed by + module name in 'self.py_modules'. Returns a list of tuples (package, + module_base, filename): 'package' is a tuple of the path through + package-space to the module; 'module_base' is the bare (no + packages, no dots) module name, and 'filename' is the path to the + ".py" file (relative to the distribution root) that implements the + module. + """ + # Map package names to tuples of useful info about the package: + # (package_dir, checked) + # package_dir - the directory where we'll find source files for + # this package + # checked - true if we have checked that the package directory + # is valid (exists, contains __init__.py, ... ?) + packages = {} + + # List of (package, module, filename) tuples to return + modules = [] + + # We treat modules-in-packages almost the same as toplevel modules, + # just the "package" for a toplevel is empty (either an empty + # string or empty list, depending on context). Differences: + # - don't check for __init__.py in directory for empty package + for module in self.py_modules: + path = module.split('.') + package = '.'.join(path[0:-1]) + module_base = path[-1] + + try: + (package_dir, checked) = packages[package] + except KeyError: + package_dir = self.get_package_dir(package) + checked = False + + if not checked: + init_py = self.check_package(package, package_dir) + packages[package] = (package_dir, 1) + if init_py: + modules.append((package, "__init__", init_py)) + + # XXX perhaps we should also check for just .pyc files + # (so greedy closed-source bastards can distribute Python + # modules too) + module_file = os.path.join(package_dir, module_base + ".py") + if not self.check_module(module, module_file): + continue + + modules.append((package, module_base, module_file)) + + return modules + + def find_all_modules(self): + """Compute the list of all modules that will be built, whether + they are specified one-module-at-a-time ('self.py_modules') or + by whole packages ('self.packages'). Return a list of tuples + (package, module, module_file), just like 'find_modules()' and + 'find_package_modules()' do.""" + modules = [] + if self.py_modules: + modules.extend(self.find_modules()) + if self.packages: + for package in self.packages: + package_dir = self.get_package_dir(package) + m = self.find_package_modules(package, package_dir) + modules.extend(m) + return modules + + def get_source_files(self): + return [module[-1] for module in self.find_all_modules()] + + def get_module_outfile(self, build_dir, package, module): + outfile_path = [build_dir] + list(package) + [module + ".py"] + return os.path.join(*outfile_path) + + def get_outputs(self, include_bytecode: bool = True) -> list[str]: + modules = self.find_all_modules() + outputs = [] + for package, module, _module_file in modules: + package = package.split('.') + filename = self.get_module_outfile(self.build_lib, package, module) + outputs.append(filename) + if include_bytecode: + if self.compile: + outputs.append( + importlib.util.cache_from_source(filename, optimization='') + ) + if self.optimize > 0: + outputs.append( + importlib.util.cache_from_source( + filename, optimization=self.optimize + ) + ) + + outputs += [ + os.path.join(build_dir, filename) + for package, src_dir, build_dir, filenames in self.data_files + for filename in filenames + ] + + return outputs + + def build_module(self, module, module_file, package): + if isinstance(package, str): + package = package.split('.') + elif not isinstance(package, (list, tuple)): + raise TypeError( + "'package' must be a string (dot-separated), list, or tuple" + ) + + # Now put the module source file into the "build" area -- this is + # easy, we just copy it somewhere under self.build_lib (the build + # directory for Python source). + outfile = self.get_module_outfile(self.build_lib, package, module) + dir = os.path.dirname(outfile) + self.mkpath(dir) + return self.copy_file(module_file, outfile, preserve_mode=False) + + def build_modules(self) -> None: + modules = self.find_modules() + for package, module, module_file in modules: + # Now "build" the module -- ie. copy the source file to + # self.build_lib (the build directory for Python source). + # (Actually, it gets copied to the directory for this package + # under self.build_lib.) + self.build_module(module, module_file, package) + + def build_packages(self) -> None: + for package in self.packages: + # Get list of (package, module, module_file) tuples based on + # scanning the package directory. 'package' is only included + # in the tuple so that 'find_modules()' and + # 'find_package_tuples()' have a consistent interface; it's + # ignored here (apart from a sanity check). Also, 'module' is + # the *unqualified* module name (ie. no dots, no package -- we + # already know its package!), and 'module_file' is the path to + # the .py file, relative to the current directory + # (ie. including 'package_dir'). + package_dir = self.get_package_dir(package) + modules = self.find_package_modules(package, package_dir) + + # Now loop over the modules we found, "building" each one (just + # copy it to self.build_lib). + for package_, module, module_file in modules: + assert package == package_ + self.build_module(module, module_file, package) + + def byte_compile(self, files) -> None: + if sys.dont_write_bytecode: + self.warn('byte-compiling is disabled, skipping.') + return + + from ..util import byte_compile + + prefix = self.build_lib + if prefix[-1] != os.sep: + prefix = prefix + os.sep + + # XXX this code is essentially the same as the 'byte_compile() + # method of the "install_lib" command, except for the determination + # of the 'prefix' string. Hmmm. + if self.compile: + byte_compile( + files, optimize=0, force=self.force, prefix=prefix, dry_run=self.dry_run + ) + if self.optimize > 0: + byte_compile( + files, + optimize=self.optimize, + force=self.force, + prefix=prefix, + dry_run=self.dry_run, + ) diff --git a/setuptools/_distutils/command/build_scripts.py b/setuptools/_distutils/command/build_scripts.py new file mode 100644 index 0000000000..127c51d8dc --- /dev/null +++ b/setuptools/_distutils/command/build_scripts.py @@ -0,0 +1,160 @@ +"""distutils.command.build_scripts + +Implements the Distutils 'build_scripts' command.""" + +import os +import re +import tokenize +from distutils._log import log +from stat import ST_MODE +from typing import ClassVar + +from .._modified import newer +from ..core import Command +from ..util import convert_path + +shebang_pattern = re.compile('^#!.*python[0-9.]*([ \t].*)?$') +""" +Pattern matching a Python interpreter indicated in first line of a script. +""" + +# for Setuptools compatibility +first_line_re = shebang_pattern + + +class build_scripts(Command): + description = "\"build\" scripts (copy and fixup #! line)" + + user_options: ClassVar[list[tuple[str, str, str]]] = [ + ('build-dir=', 'd', "directory to \"build\" (copy) to"), + ('force', 'f', "forcibly build everything (ignore file timestamps"), + ('executable=', 'e', "specify final destination interpreter path"), + ] + + boolean_options: ClassVar[list[str]] = ['force'] + + def initialize_options(self): + self.build_dir = None + self.scripts = None + self.force = None + self.executable = None + + def finalize_options(self): + self.set_undefined_options( + 'build', + ('build_scripts', 'build_dir'), + ('force', 'force'), + ('executable', 'executable'), + ) + self.scripts = self.distribution.scripts + + def get_source_files(self): + return self.scripts + + def run(self): + if not self.scripts: + return + self.copy_scripts() + + def copy_scripts(self): + """ + Copy each script listed in ``self.scripts``. + + If a script is marked as a Python script (first line matches + 'shebang_pattern', i.e. starts with ``#!`` and contains + "python"), then adjust in the copy the first line to refer to + the current Python interpreter. + """ + self.mkpath(self.build_dir) + outfiles = [] + updated_files = [] + for script in self.scripts: + self._copy_script(script, outfiles, updated_files) + + self._change_modes(outfiles) + + return outfiles, updated_files + + def _copy_script(self, script, outfiles, updated_files): + shebang_match = None + script = convert_path(script) + outfile = os.path.join(self.build_dir, os.path.basename(script)) + outfiles.append(outfile) + + if not self.force and not newer(script, outfile): + log.debug("not copying %s (up-to-date)", script) + return + + # Always open the file, but ignore failures in dry-run mode + # in order to attempt to copy directly. + try: + f = tokenize.open(script) + except OSError: + if not self.dry_run: + raise + f = None + else: + first_line = f.readline() + if not first_line: + self.warn(f"{script} is an empty file (skipping)") + return + + shebang_match = shebang_pattern.match(first_line) + + updated_files.append(outfile) + if shebang_match: + log.info("copying and adjusting %s -> %s", script, self.build_dir) + if not self.dry_run: + post_interp = shebang_match.group(1) or '' + shebang = f"#!python{post_interp}\n" + self._validate_shebang(shebang, f.encoding) + with open(outfile, "w", encoding=f.encoding) as outf: + outf.write(shebang) + outf.writelines(f.readlines()) + if f: + f.close() + else: + if f: + f.close() + self.copy_file(script, outfile) + + def _change_modes(self, outfiles): + if os.name != 'posix': + return + + for file in outfiles: + self._change_mode(file) + + def _change_mode(self, file): + if self.dry_run: + log.info("changing mode of %s", file) + return + + oldmode = os.stat(file)[ST_MODE] & 0o7777 + newmode = (oldmode | 0o555) & 0o7777 + if newmode != oldmode: + log.info("changing mode of %s from %o to %o", file, oldmode, newmode) + os.chmod(file, newmode) + + @staticmethod + def _validate_shebang(shebang, encoding): + # Python parser starts to read a script using UTF-8 until + # it gets a #coding:xxx cookie. The shebang has to be the + # first line of a file, the #coding:xxx cookie cannot be + # written before. So the shebang has to be encodable to + # UTF-8. + try: + shebang.encode('utf-8') + except UnicodeEncodeError: + raise ValueError(f"The shebang ({shebang!r}) is not encodable to utf-8") + + # If the script is encoded to a custom encoding (use a + # #coding:xxx cookie), the shebang has to be encodable to + # the script encoding too. + try: + shebang.encode(encoding) + except UnicodeEncodeError: + raise ValueError( + f"The shebang ({shebang!r}) is not encodable " + f"to the script encoding ({encoding})" + ) diff --git a/setuptools/_distutils/command/check.py b/setuptools/_distutils/command/check.py new file mode 100644 index 0000000000..58a823dd39 --- /dev/null +++ b/setuptools/_distutils/command/check.py @@ -0,0 +1,152 @@ +"""distutils.command.check + +Implements the Distutils 'check' command. +""" + +import contextlib +from typing import ClassVar + +from ..core import Command +from ..errors import DistutilsSetupError + +with contextlib.suppress(ImportError): + import docutils.frontend + import docutils.nodes + import docutils.parsers.rst + import docutils.utils + + class SilentReporter(docutils.utils.Reporter): + def __init__( + self, + source, + report_level, + halt_level, + stream=None, + debug=False, + encoding='ascii', + error_handler='replace', + ): + self.messages = [] + super().__init__( + source, report_level, halt_level, stream, debug, encoding, error_handler + ) + + def system_message(self, level, message, *children, **kwargs): + self.messages.append((level, message, children, kwargs)) + return docutils.nodes.system_message( + message, *children, level=level, type=self.levels[level], **kwargs + ) + + +class check(Command): + """This command checks the meta-data of the package.""" + + description = "perform some checks on the package" + user_options: ClassVar[list[tuple[str, str, str]]] = [ + ('metadata', 'm', 'Verify meta-data'), + ( + 'restructuredtext', + 'r', + 'Checks if long string meta-data syntax are reStructuredText-compliant', + ), + ('strict', 's', 'Will exit with an error if a check fails'), + ] + + boolean_options: ClassVar[list[str]] = ['metadata', 'restructuredtext', 'strict'] + + def initialize_options(self): + """Sets default values for options.""" + self.restructuredtext = False + self.metadata = 1 + self.strict = False + self._warnings = 0 + + def finalize_options(self): + pass + + def warn(self, msg): + """Counts the number of warnings that occurs.""" + self._warnings += 1 + return Command.warn(self, msg) + + def run(self): + """Runs the command.""" + # perform the various tests + if self.metadata: + self.check_metadata() + if self.restructuredtext: + if 'docutils' in globals(): + try: + self.check_restructuredtext() + except TypeError as exc: + raise DistutilsSetupError(str(exc)) + elif self.strict: + raise DistutilsSetupError('The docutils package is needed.') + + # let's raise an error in strict mode, if we have at least + # one warning + if self.strict and self._warnings > 0: + raise DistutilsSetupError('Please correct your package.') + + def check_metadata(self): + """Ensures that all required elements of meta-data are supplied. + + Required fields: + name, version + + Warns if any are missing. + """ + metadata = self.distribution.metadata + + missing = [ + attr for attr in ('name', 'version') if not getattr(metadata, attr, None) + ] + + if missing: + self.warn("missing required meta-data: {}".format(', '.join(missing))) + + def check_restructuredtext(self): + """Checks if the long string fields are reST-compliant.""" + data = self.distribution.get_long_description() + for warning in self._check_rst_data(data): + line = warning[-1].get('line') + if line is None: + warning = warning[1] + else: + warning = f'{warning[1]} (line {line})' + self.warn(warning) + + def _check_rst_data(self, data): + """Returns warnings when the provided data doesn't compile.""" + # the include and csv_table directives need this to be a path + source_path = self.distribution.script_name or 'setup.py' + parser = docutils.parsers.rst.Parser() + settings = docutils.frontend.OptionParser( + components=(docutils.parsers.rst.Parser,) + ).get_default_values() + settings.tab_width = 4 + settings.pep_references = None + settings.rfc_references = None + reporter = SilentReporter( + source_path, + settings.report_level, + settings.halt_level, + stream=settings.warning_stream, + debug=settings.debug, + encoding=settings.error_encoding, + error_handler=settings.error_encoding_error_handler, + ) + + document = docutils.nodes.document(settings, reporter, source=source_path) + document.note_source(source_path, -1) + try: + parser.parse(data, document) + except (AttributeError, TypeError) as e: + reporter.messages.append(( + -1, + f'Could not finish the parsing: {e}.', + '', + {}, + )) + + return reporter.messages diff --git a/setuptools/_distutils/command/clean.py b/setuptools/_distutils/command/clean.py new file mode 100644 index 0000000000..23427aba21 --- /dev/null +++ b/setuptools/_distutils/command/clean.py @@ -0,0 +1,77 @@ +"""distutils.command.clean + +Implements the Distutils 'clean' command.""" + +# contributed by Bastian Kleineidam , added 2000-03-18 + +import os +from distutils._log import log +from typing import ClassVar + +from ..core import Command +from ..dir_util import remove_tree + + +class clean(Command): + description = "clean up temporary files from 'build' command" + user_options = [ + ('build-base=', 'b', "base build directory [default: 'build.build-base']"), + ( + 'build-lib=', + None, + "build directory for all modules [default: 'build.build-lib']", + ), + ('build-temp=', 't', "temporary build directory [default: 'build.build-temp']"), + ( + 'build-scripts=', + None, + "build directory for scripts [default: 'build.build-scripts']", + ), + ('bdist-base=', None, "temporary directory for built distributions"), + ('all', 'a', "remove all build output, not just temporary by-products"), + ] + + boolean_options: ClassVar[list[str]] = ['all'] + + def initialize_options(self): + self.build_base = None + self.build_lib = None + self.build_temp = None + self.build_scripts = None + self.bdist_base = None + self.all = None + + def finalize_options(self): + self.set_undefined_options( + 'build', + ('build_base', 'build_base'), + ('build_lib', 'build_lib'), + ('build_scripts', 'build_scripts'), + ('build_temp', 'build_temp'), + ) + self.set_undefined_options('bdist', ('bdist_base', 'bdist_base')) + + def run(self): + # remove the build/temp. directory (unless it's already + # gone) + if os.path.exists(self.build_temp): + remove_tree(self.build_temp, dry_run=self.dry_run) + else: + log.debug("'%s' does not exist -- can't clean it", self.build_temp) + + if self.all: + # remove build directories + for directory in (self.build_lib, self.bdist_base, self.build_scripts): + if os.path.exists(directory): + remove_tree(directory, dry_run=self.dry_run) + else: + log.warning("'%s' does not exist -- can't clean it", directory) + + # just for the heck of it, try to remove the base build directory: + # we might have emptied it right now, but if not we don't care + if not self.dry_run: + try: + os.rmdir(self.build_base) + log.info("removing '%s'", self.build_base) + except OSError: + pass diff --git a/setuptools/_distutils/command/command_template b/setuptools/_distutils/command/command_template new file mode 100644 index 0000000000..a4a751ad3c --- /dev/null +++ b/setuptools/_distutils/command/command_template @@ -0,0 +1,33 @@ +"""distutils.command.x + +Implements the Distutils 'x' command. +""" + +# created 2000/mm/dd, John Doe + +__revision__ = "$Id$" + +from distutils.core import Command +from typing import ClassVar + + +class x(Command): + # Brief (40-50 characters) description of the command + description = "" + + # List of option tuples: long name, short name (None if no short + # name), and help string. + user_options: ClassVar[list[tuple[str, str, str]]] = [ + ('', '', ""), + ] + + def initialize_options(self): + self. = None + self. = None + self. = None + + def finalize_options(self): + if self.x is None: + self.x = + + def run(self): diff --git a/setuptools/_distutils/command/config.py b/setuptools/_distutils/command/config.py new file mode 100644 index 0000000000..c825765c87 --- /dev/null +++ b/setuptools/_distutils/command/config.py @@ -0,0 +1,358 @@ +"""distutils.command.config + +Implements the Distutils 'config' command, a (mostly) empty command class +that exists mainly to be sub-classed by specific module distributions and +applications. The idea is that while every "config" command is different, +at least they're all named the same, and users always see "config" in the +list of standard commands. Also, this is a good place to put common +configure-like tasks: "try to compile this C code", or "figure out where +this header file lives". +""" + +from __future__ import annotations + +import os +import pathlib +import re +from collections.abc import Sequence +from distutils._log import log + +from ..ccompiler import CCompiler, CompileError, LinkError, new_compiler +from ..core import Command +from ..errors import DistutilsExecError +from ..sysconfig import customize_compiler + +LANG_EXT = {"c": ".c", "c++": ".cxx"} + + +class config(Command): + description = "prepare to build" + + user_options = [ + ('compiler=', None, "specify the compiler type"), + ('cc=', None, "specify the compiler executable"), + ('include-dirs=', 'I', "list of directories to search for header files"), + ('define=', 'D', "C preprocessor macros to define"), + ('undef=', 'U', "C preprocessor macros to undefine"), + ('libraries=', 'l', "external C libraries to link with"), + ('library-dirs=', 'L', "directories to search for external C libraries"), + ('noisy', None, "show every action (compile, link, run, ...) taken"), + ( + 'dump-source', + None, + "dump generated source files before attempting to compile them", + ), + ] + + # The three standard command methods: since the "config" command + # does nothing by default, these are empty. + + def initialize_options(self): + self.compiler = None + self.cc = None + self.include_dirs = None + self.libraries = None + self.library_dirs = None + + # maximal output for now + self.noisy = 1 + self.dump_source = 1 + + # list of temporary files generated along-the-way that we have + # to clean at some point + self.temp_files = [] + + def finalize_options(self): + if self.include_dirs is None: + self.include_dirs = self.distribution.include_dirs or [] + elif isinstance(self.include_dirs, str): + self.include_dirs = self.include_dirs.split(os.pathsep) + + if self.libraries is None: + self.libraries = [] + elif isinstance(self.libraries, str): + self.libraries = [self.libraries] + + if self.library_dirs is None: + self.library_dirs = [] + elif isinstance(self.library_dirs, str): + self.library_dirs = self.library_dirs.split(os.pathsep) + + def run(self): + pass + + # Utility methods for actual "config" commands. The interfaces are + # loosely based on Autoconf macros of similar names. Sub-classes + # may use these freely. + + def _check_compiler(self): + """Check that 'self.compiler' really is a CCompiler object; + if not, make it one. + """ + if not isinstance(self.compiler, CCompiler): + self.compiler = new_compiler( + compiler=self.compiler, dry_run=self.dry_run, force=True + ) + customize_compiler(self.compiler) + if self.include_dirs: + self.compiler.set_include_dirs(self.include_dirs) + if self.libraries: + self.compiler.set_libraries(self.libraries) + if self.library_dirs: + self.compiler.set_library_dirs(self.library_dirs) + + def _gen_temp_sourcefile(self, body, headers, lang): + filename = "_configtest" + LANG_EXT[lang] + with open(filename, "w", encoding='utf-8') as file: + if headers: + for header in headers: + file.write(f"#include <{header}>\n") + file.write("\n") + file.write(body) + if body[-1] != "\n": + file.write("\n") + return filename + + def _preprocess(self, body, headers, include_dirs, lang): + src = self._gen_temp_sourcefile(body, headers, lang) + out = "_configtest.i" + self.temp_files.extend([src, out]) + self.compiler.preprocess(src, out, include_dirs=include_dirs) + return (src, out) + + def _compile(self, body, headers, include_dirs, lang): + src = self._gen_temp_sourcefile(body, headers, lang) + if self.dump_source: + dump_file(src, f"compiling '{src}':") + (obj,) = self.compiler.object_filenames([src]) + self.temp_files.extend([src, obj]) + self.compiler.compile([src], include_dirs=include_dirs) + return (src, obj) + + def _link(self, body, headers, include_dirs, libraries, library_dirs, lang): + (src, obj) = self._compile(body, headers, include_dirs, lang) + prog = os.path.splitext(os.path.basename(src))[0] + self.compiler.link_executable( + [obj], + prog, + libraries=libraries, + library_dirs=library_dirs, + target_lang=lang, + ) + + if self.compiler.exe_extension is not None: + prog = prog + self.compiler.exe_extension + self.temp_files.append(prog) + + return (src, obj, prog) + + def _clean(self, *filenames): + if not filenames: + filenames = self.temp_files + self.temp_files = [] + log.info("removing: %s", ' '.join(filenames)) + for filename in filenames: + try: + os.remove(filename) + except OSError: + pass + + # XXX these ignore the dry-run flag: what to do, what to do? even if + # you want a dry-run build, you still need some sort of configuration + # info. My inclination is to make it up to the real config command to + # consult 'dry_run', and assume a default (minimal) configuration if + # true. The problem with trying to do it here is that you'd have to + # return either true or false from all the 'try' methods, neither of + # which is correct. + + # XXX need access to the header search path and maybe default macros. + + def try_cpp(self, body=None, headers=None, include_dirs=None, lang="c"): + """Construct a source file from 'body' (a string containing lines + of C/C++ code) and 'headers' (a list of header files to include) + and run it through the preprocessor. Return true if the + preprocessor succeeded, false if there were any errors. + ('body' probably isn't of much use, but what the heck.) + """ + self._check_compiler() + ok = True + try: + self._preprocess(body, headers, include_dirs, lang) + except CompileError: + ok = False + + self._clean() + return ok + + def search_cpp(self, pattern, body=None, headers=None, include_dirs=None, lang="c"): + """Construct a source file (just like 'try_cpp()'), run it through + the preprocessor, and return true if any line of the output matches + 'pattern'. 'pattern' should either be a compiled regex object or a + string containing a regex. If both 'body' and 'headers' are None, + preprocesses an empty file -- which can be useful to determine the + symbols the preprocessor and compiler set by default. + """ + self._check_compiler() + src, out = self._preprocess(body, headers, include_dirs, lang) + + if isinstance(pattern, str): + pattern = re.compile(pattern) + + with open(out, encoding='utf-8') as file: + match = any(pattern.search(line) for line in file) + + self._clean() + return match + + def try_compile(self, body, headers=None, include_dirs=None, lang="c"): + """Try to compile a source file built from 'body' and 'headers'. + Return true on success, false otherwise. + """ + self._check_compiler() + try: + self._compile(body, headers, include_dirs, lang) + ok = True + except CompileError: + ok = False + + log.info(ok and "success!" or "failure.") + self._clean() + return ok + + def try_link( + self, + body, + headers=None, + include_dirs=None, + libraries=None, + library_dirs=None, + lang="c", + ): + """Try to compile and link a source file, built from 'body' and + 'headers', to executable form. Return true on success, false + otherwise. + """ + self._check_compiler() + try: + self._link(body, headers, include_dirs, libraries, library_dirs, lang) + ok = True + except (CompileError, LinkError): + ok = False + + log.info(ok and "success!" or "failure.") + self._clean() + return ok + + def try_run( + self, + body, + headers=None, + include_dirs=None, + libraries=None, + library_dirs=None, + lang="c", + ): + """Try to compile, link to an executable, and run a program + built from 'body' and 'headers'. Return true on success, false + otherwise. + """ + self._check_compiler() + try: + src, obj, exe = self._link( + body, headers, include_dirs, libraries, library_dirs, lang + ) + self.spawn([exe]) + ok = True + except (CompileError, LinkError, DistutilsExecError): + ok = False + + log.info(ok and "success!" or "failure.") + self._clean() + return ok + + # -- High-level methods -------------------------------------------- + # (these are the ones that are actually likely to be useful + # when implementing a real-world config command!) + + def check_func( + self, + func, + headers=None, + include_dirs=None, + libraries=None, + library_dirs=None, + decl=False, + call=False, + ): + """Determine if function 'func' is available by constructing a + source file that refers to 'func', and compiles and links it. + If everything succeeds, returns true; otherwise returns false. + + The constructed source file starts out by including the header + files listed in 'headers'. If 'decl' is true, it then declares + 'func' (as "int func()"); you probably shouldn't supply 'headers' + and set 'decl' true in the same call, or you might get errors about + a conflicting declarations for 'func'. Finally, the constructed + 'main()' function either references 'func' or (if 'call' is true) + calls it. 'libraries' and 'library_dirs' are used when + linking. + """ + self._check_compiler() + body = [] + if decl: + body.append(f"int {func} ();") + body.append("int main () {") + if call: + body.append(f" {func}();") + else: + body.append(f" {func};") + body.append("}") + body = "\n".join(body) + "\n" + + return self.try_link(body, headers, include_dirs, libraries, library_dirs) + + def check_lib( + self, + library, + library_dirs=None, + headers=None, + include_dirs=None, + other_libraries: Sequence[str] = [], + ): + """Determine if 'library' is available to be linked against, + without actually checking that any particular symbols are provided + by it. 'headers' will be used in constructing the source file to + be compiled, but the only effect of this is to check if all the + header files listed are available. Any libraries listed in + 'other_libraries' will be included in the link, in case 'library' + has symbols that depend on other libraries. + """ + self._check_compiler() + return self.try_link( + "int main (void) { }", + headers, + include_dirs, + [library] + list(other_libraries), + library_dirs, + ) + + def check_header(self, header, include_dirs=None, library_dirs=None, lang="c"): + """Determine if the system header file named by 'header_file' + exists and can be found by the preprocessor; return true if so, + false otherwise. + """ + return self.try_cpp( + body="/* No body */", headers=[header], include_dirs=include_dirs + ) + + +def dump_file(filename, head=None): + """Dumps a file content into log.info. + + If head is not None, will be dumped before the file content. + """ + if head is None: + log.info('%s', filename) + else: + log.info(head) + log.info(pathlib.Path(filename).read_text(encoding='utf-8')) diff --git a/setuptools/_distutils/command/install.py b/setuptools/_distutils/command/install.py new file mode 100644 index 0000000000..dc17e56a80 --- /dev/null +++ b/setuptools/_distutils/command/install.py @@ -0,0 +1,805 @@ +"""distutils.command.install + +Implements the Distutils 'install' command.""" + +from __future__ import annotations + +import collections +import contextlib +import itertools +import os +import sys +import sysconfig +from distutils._log import log +from site import USER_BASE, USER_SITE +from typing import ClassVar + +from ..core import Command +from ..debug import DEBUG +from ..errors import DistutilsOptionError, DistutilsPlatformError +from ..file_util import write_file +from ..sysconfig import get_config_vars +from ..util import change_root, convert_path, get_platform, subst_vars +from . import _framework_compat as fw + +HAS_USER_SITE = True + +WINDOWS_SCHEME = { + 'purelib': '{base}/Lib/site-packages', + 'platlib': '{base}/Lib/site-packages', + 'headers': '{base}/Include/{dist_name}', + 'scripts': '{base}/Scripts', + 'data': '{base}', +} + +INSTALL_SCHEMES = { + 'posix_prefix': { + 'purelib': '{base}/lib/{implementation_lower}{py_version_short}/site-packages', + 'platlib': '{platbase}/{platlibdir}/{implementation_lower}' + '{py_version_short}/site-packages', + 'headers': '{base}/include/{implementation_lower}' + '{py_version_short}{abiflags}/{dist_name}', + 'scripts': '{base}/bin', + 'data': '{base}', + }, + 'posix_home': { + 'purelib': '{base}/lib/{implementation_lower}', + 'platlib': '{base}/{platlibdir}/{implementation_lower}', + 'headers': '{base}/include/{implementation_lower}/{dist_name}', + 'scripts': '{base}/bin', + 'data': '{base}', + }, + 'nt': WINDOWS_SCHEME, + 'pypy': { + 'purelib': '{base}/site-packages', + 'platlib': '{base}/site-packages', + 'headers': '{base}/include/{dist_name}', + 'scripts': '{base}/bin', + 'data': '{base}', + }, + 'pypy_nt': { + 'purelib': '{base}/site-packages', + 'platlib': '{base}/site-packages', + 'headers': '{base}/include/{dist_name}', + 'scripts': '{base}/Scripts', + 'data': '{base}', + }, +} + +# user site schemes +if HAS_USER_SITE: + INSTALL_SCHEMES['nt_user'] = { + 'purelib': '{usersite}', + 'platlib': '{usersite}', + 'headers': '{userbase}/{implementation}{py_version_nodot_plat}' + '/Include/{dist_name}', + 'scripts': '{userbase}/{implementation}{py_version_nodot_plat}/Scripts', + 'data': '{userbase}', + } + + INSTALL_SCHEMES['posix_user'] = { + 'purelib': '{usersite}', + 'platlib': '{usersite}', + 'headers': '{userbase}/include/{implementation_lower}' + '{py_version_short}{abiflags}/{dist_name}', + 'scripts': '{userbase}/bin', + 'data': '{userbase}', + } + + +INSTALL_SCHEMES.update(fw.schemes) + + +# The keys to an installation scheme; if any new types of files are to be +# installed, be sure to add an entry to every installation scheme above, +# and to SCHEME_KEYS here. +SCHEME_KEYS = ('purelib', 'platlib', 'headers', 'scripts', 'data') + + +def _load_sysconfig_schemes(): + with contextlib.suppress(AttributeError): + return { + scheme: sysconfig.get_paths(scheme, expand=False) + for scheme in sysconfig.get_scheme_names() + } + + +def _load_schemes(): + """ + Extend default schemes with schemes from sysconfig. + """ + + sysconfig_schemes = _load_sysconfig_schemes() or {} + + return { + scheme: { + **INSTALL_SCHEMES.get(scheme, {}), + **sysconfig_schemes.get(scheme, {}), + } + for scheme in set(itertools.chain(INSTALL_SCHEMES, sysconfig_schemes)) + } + + +def _get_implementation(): + if hasattr(sys, 'pypy_version_info'): + return 'PyPy' + else: + return 'Python' + + +def _select_scheme(ob, name): + scheme = _inject_headers(name, _load_scheme(_resolve_scheme(name))) + vars(ob).update(_remove_set(ob, _scheme_attrs(scheme))) + + +def _remove_set(ob, attrs): + """ + Include only attrs that are None in ob. + """ + return {key: value for key, value in attrs.items() if getattr(ob, key) is None} + + +def _resolve_scheme(name): + os_name, sep, key = name.partition('_') + try: + resolved = sysconfig.get_preferred_scheme(key) + except Exception: + resolved = fw.scheme(name) + return resolved + + +def _load_scheme(name): + return _load_schemes()[name] + + +def _inject_headers(name, scheme): + """ + Given a scheme name and the resolved scheme, + if the scheme does not include headers, resolve + the fallback scheme for the name and use headers + from it. pypa/distutils#88 + """ + # Bypass the preferred scheme, which may not + # have defined headers. + fallback = _load_scheme(name) + scheme.setdefault('headers', fallback['headers']) + return scheme + + +def _scheme_attrs(scheme): + """Resolve install directories by applying the install schemes.""" + return {f'install_{key}': scheme[key] for key in SCHEME_KEYS} + + +class install(Command): + description = "install everything from build directory" + + user_options = [ + # Select installation scheme and set base director(y|ies) + ('prefix=', None, "installation prefix"), + ('exec-prefix=', None, "(Unix only) prefix for platform-specific files"), + ('home=', None, "(Unix only) home directory to install under"), + # Or, just set the base director(y|ies) + ( + 'install-base=', + None, + "base installation directory (instead of --prefix or --home)", + ), + ( + 'install-platbase=', + None, + "base installation directory for platform-specific files (instead of --exec-prefix or --home)", + ), + ('root=', None, "install everything relative to this alternate root directory"), + # Or, explicitly set the installation scheme + ( + 'install-purelib=', + None, + "installation directory for pure Python module distributions", + ), + ( + 'install-platlib=', + None, + "installation directory for non-pure module distributions", + ), + ( + 'install-lib=', + None, + "installation directory for all module distributions (overrides --install-purelib and --install-platlib)", + ), + ('install-headers=', None, "installation directory for C/C++ headers"), + ('install-scripts=', None, "installation directory for Python scripts"), + ('install-data=', None, "installation directory for data files"), + # Byte-compilation options -- see install_lib.py for details, as + # these are duplicated from there (but only install_lib does + # anything with them). + ('compile', 'c', "compile .py to .pyc [default]"), + ('no-compile', None, "don't compile .py files"), + ( + 'optimize=', + 'O', + "also compile with optimization: -O1 for \"python -O\", " + "-O2 for \"python -OO\", and -O0 to disable [default: -O0]", + ), + # Miscellaneous control options + ('force', 'f', "force installation (overwrite any existing files)"), + ('skip-build', None, "skip rebuilding everything (for testing/debugging)"), + # Where to install documentation (eventually!) + # ('doc-format=', None, "format of documentation to generate"), + # ('install-man=', None, "directory for Unix man pages"), + # ('install-html=', None, "directory for HTML documentation"), + # ('install-info=', None, "directory for GNU info files"), + ('record=', None, "filename in which to record list of installed files"), + ] + + boolean_options: ClassVar[list[str]] = ['compile', 'force', 'skip-build'] + + if HAS_USER_SITE: + user_options.append(( + 'user', + None, + f"install in user site-package '{USER_SITE}'", + )) + boolean_options.append('user') + + negative_opt: ClassVar[dict[str, str]] = {'no-compile': 'compile'} + + def initialize_options(self) -> None: + """Initializes options.""" + # High-level options: these select both an installation base + # and scheme. + self.prefix: str | None = None + self.exec_prefix: str | None = None + self.home: str | None = None + self.user = False + + # These select only the installation base; it's up to the user to + # specify the installation scheme (currently, that means supplying + # the --install-{platlib,purelib,scripts,data} options). + self.install_base = None + self.install_platbase = None + self.root: str | None = None + + # These options are the actual installation directories; if not + # supplied by the user, they are filled in using the installation + # scheme implied by prefix/exec-prefix/home and the contents of + # that installation scheme. + self.install_purelib = None # for pure module distributions + self.install_platlib = None # non-pure (dists w/ extensions) + self.install_headers = None # for C/C++ headers + self.install_lib: str | None = None # set to either purelib or platlib + self.install_scripts = None + self.install_data = None + self.install_userbase = USER_BASE + self.install_usersite = USER_SITE + + self.compile = None + self.optimize = None + + # Deprecated + # These two are for putting non-packagized distributions into their + # own directory and creating a .pth file if it makes sense. + # 'extra_path' comes from the setup file; 'install_path_file' can + # be turned off if it makes no sense to install a .pth file. (But + # better to install it uselessly than to guess wrong and not + # install it when it's necessary and would be used!) Currently, + # 'install_path_file' is always true unless some outsider meddles + # with it. + self.extra_path = None + self.install_path_file = True + + # 'force' forces installation, even if target files are not + # out-of-date. 'skip_build' skips running the "build" command, + # handy if you know it's not necessary. 'warn_dir' (which is *not* + # a user option, it's just there so the bdist_* commands can turn + # it off) determines whether we warn about installing to a + # directory not in sys.path. + self.force = False + self.skip_build = False + self.warn_dir = True + + # These are only here as a conduit from the 'build' command to the + # 'install_*' commands that do the real work. ('build_base' isn't + # actually used anywhere, but it might be useful in future.) They + # are not user options, because if the user told the install + # command where the build directory is, that wouldn't affect the + # build command. + self.build_base = None + self.build_lib = None + + # Not defined yet because we don't know anything about + # documentation yet. + # self.install_man = None + # self.install_html = None + # self.install_info = None + + self.record = None + + # -- Option finalizing methods ------------------------------------- + # (This is rather more involved than for most commands, + # because this is where the policy for installing third- + # party Python modules on various platforms given a wide + # array of user input is decided. Yes, it's quite complex!) + + def finalize_options(self) -> None: # noqa: C901 + """Finalizes options.""" + # This method (and its helpers, like 'finalize_unix()', + # 'finalize_other()', and 'select_scheme()') is where the default + # installation directories for modules, extension modules, and + # anything else we care to install from a Python module + # distribution. Thus, this code makes a pretty important policy + # statement about how third-party stuff is added to a Python + # installation! Note that the actual work of installation is done + # by the relatively simple 'install_*' commands; they just take + # their orders from the installation directory options determined + # here. + + # Check for errors/inconsistencies in the options; first, stuff + # that's wrong on any platform. + + if (self.prefix or self.exec_prefix or self.home) and ( + self.install_base or self.install_platbase + ): + raise DistutilsOptionError( + "must supply either prefix/exec-prefix/home or install-base/install-platbase -- not both" + ) + + if self.home and (self.prefix or self.exec_prefix): + raise DistutilsOptionError( + "must supply either home or prefix/exec-prefix -- not both" + ) + + if self.user and ( + self.prefix + or self.exec_prefix + or self.home + or self.install_base + or self.install_platbase + ): + raise DistutilsOptionError( + "can't combine user with prefix, " + "exec_prefix/home, or install_(plat)base" + ) + + # Next, stuff that's wrong (or dubious) only on certain platforms. + if os.name != "posix": + if self.exec_prefix: + self.warn("exec-prefix option ignored on this platform") + self.exec_prefix = None + + # Now the interesting logic -- so interesting that we farm it out + # to other methods. The goal of these methods is to set the final + # values for the install_{lib,scripts,data,...} options, using as + # input a heady brew of prefix, exec_prefix, home, install_base, + # install_platbase, user-supplied versions of + # install_{purelib,platlib,lib,scripts,data,...}, and the + # install schemes. Phew! + + self.dump_dirs("pre-finalize_{unix,other}") + + if os.name == 'posix': + self.finalize_unix() + else: + self.finalize_other() + + self.dump_dirs("post-finalize_{unix,other}()") + + # Expand configuration variables, tilde, etc. in self.install_base + # and self.install_platbase -- that way, we can use $base or + # $platbase in the other installation directories and not worry + # about needing recursive variable expansion (shudder). + + py_version = sys.version.split()[0] + (prefix, exec_prefix) = get_config_vars('prefix', 'exec_prefix') + try: + abiflags = sys.abiflags + except AttributeError: + # sys.abiflags may not be defined on all platforms. + abiflags = '' + local_vars = { + 'dist_name': self.distribution.get_name(), + 'dist_version': self.distribution.get_version(), + 'dist_fullname': self.distribution.get_fullname(), + 'py_version': py_version, + 'py_version_short': f'{sys.version_info.major}.{sys.version_info.minor}', + 'py_version_nodot': f'{sys.version_info.major}{sys.version_info.minor}', + 'sys_prefix': prefix, + 'prefix': prefix, + 'sys_exec_prefix': exec_prefix, + 'exec_prefix': exec_prefix, + 'abiflags': abiflags, + 'platlibdir': getattr(sys, 'platlibdir', 'lib'), + 'implementation_lower': _get_implementation().lower(), + 'implementation': _get_implementation(), + } + + # vars for compatibility on older Pythons + compat_vars = dict( + # Python 3.9 and earlier + py_version_nodot_plat=getattr(sys, 'winver', '').replace('.', ''), + ) + + if HAS_USER_SITE: + local_vars['userbase'] = self.install_userbase + local_vars['usersite'] = self.install_usersite + + self.config_vars = collections.ChainMap( + local_vars, + sysconfig.get_config_vars(), + compat_vars, + fw.vars(), + ) + + self.expand_basedirs() + + self.dump_dirs("post-expand_basedirs()") + + # Now define config vars for the base directories so we can expand + # everything else. + local_vars['base'] = self.install_base + local_vars['platbase'] = self.install_platbase + + if DEBUG: + from pprint import pprint + + print("config vars:") + pprint(dict(self.config_vars)) + + # Expand "~" and configuration variables in the installation + # directories. + self.expand_dirs() + + self.dump_dirs("post-expand_dirs()") + + # Create directories in the home dir: + if self.user: + self.create_home_path() + + # Pick the actual directory to install all modules to: either + # install_purelib or install_platlib, depending on whether this + # module distribution is pure or not. Of course, if the user + # already specified install_lib, use their selection. + if self.install_lib is None: + if self.distribution.has_ext_modules(): # has extensions: non-pure + self.install_lib = self.install_platlib + else: + self.install_lib = self.install_purelib + + # Convert directories from Unix /-separated syntax to the local + # convention. + self.convert_paths( + 'lib', + 'purelib', + 'platlib', + 'scripts', + 'data', + 'headers', + 'userbase', + 'usersite', + ) + + # Deprecated + # Well, we're not actually fully completely finalized yet: we still + # have to deal with 'extra_path', which is the hack for allowing + # non-packagized module distributions (hello, Numerical Python!) to + # get their own directories. + self.handle_extra_path() + self.install_libbase = self.install_lib # needed for .pth file + self.install_lib = os.path.join(self.install_lib, self.extra_dirs) + + # If a new root directory was supplied, make all the installation + # dirs relative to it. + if self.root is not None: + self.change_roots( + 'libbase', 'lib', 'purelib', 'platlib', 'scripts', 'data', 'headers' + ) + + self.dump_dirs("after prepending root") + + # Find out the build directories, ie. where to install from. + self.set_undefined_options( + 'build', ('build_base', 'build_base'), ('build_lib', 'build_lib') + ) + + # Punt on doc directories for now -- after all, we're punting on + # documentation completely! + + def dump_dirs(self, msg) -> None: + """Dumps the list of user options.""" + if not DEBUG: + return + from ..fancy_getopt import longopt_xlate + + log.debug(msg + ":") + for opt in self.user_options: + opt_name = opt[0] + if opt_name[-1] == "=": + opt_name = opt_name[0:-1] + if opt_name in self.negative_opt: + opt_name = self.negative_opt[opt_name] + opt_name = opt_name.translate(longopt_xlate) + val = not getattr(self, opt_name) + else: + opt_name = opt_name.translate(longopt_xlate) + val = getattr(self, opt_name) + log.debug(" %s: %s", opt_name, val) + + def finalize_unix(self) -> None: + """Finalizes options for posix platforms.""" + if self.install_base is not None or self.install_platbase is not None: + incomplete_scheme = ( + ( + self.install_lib is None + and self.install_purelib is None + and self.install_platlib is None + ) + or self.install_headers is None + or self.install_scripts is None + or self.install_data is None + ) + if incomplete_scheme: + raise DistutilsOptionError( + "install-base or install-platbase supplied, but " + "installation scheme is incomplete" + ) + return + + if self.user: + if self.install_userbase is None: + raise DistutilsPlatformError("User base directory is not specified") + self.install_base = self.install_platbase = self.install_userbase + self.select_scheme("posix_user") + elif self.home is not None: + self.install_base = self.install_platbase = self.home + self.select_scheme("posix_home") + else: + if self.prefix is None: + if self.exec_prefix is not None: + raise DistutilsOptionError( + "must not supply exec-prefix without prefix" + ) + + # Allow Fedora to add components to the prefix + _prefix_addition = getattr(sysconfig, '_prefix_addition', "") + + self.prefix = os.path.normpath(sys.prefix) + _prefix_addition + self.exec_prefix = os.path.normpath(sys.exec_prefix) + _prefix_addition + + else: + if self.exec_prefix is None: + self.exec_prefix = self.prefix + + self.install_base = self.prefix + self.install_platbase = self.exec_prefix + self.select_scheme("posix_prefix") + + def finalize_other(self) -> None: + """Finalizes options for non-posix platforms""" + if self.user: + if self.install_userbase is None: + raise DistutilsPlatformError("User base directory is not specified") + self.install_base = self.install_platbase = self.install_userbase + self.select_scheme(os.name + "_user") + elif self.home is not None: + self.install_base = self.install_platbase = self.home + self.select_scheme("posix_home") + else: + if self.prefix is None: + self.prefix = os.path.normpath(sys.prefix) + + self.install_base = self.install_platbase = self.prefix + try: + self.select_scheme(os.name) + except KeyError: + raise DistutilsPlatformError( + f"I don't know how to install stuff on '{os.name}'" + ) + + def select_scheme(self, name) -> None: + _select_scheme(self, name) + + def _expand_attrs(self, attrs): + for attr in attrs: + val = getattr(self, attr) + if val is not None: + if os.name in ('posix', 'nt'): + val = os.path.expanduser(val) + val = subst_vars(val, self.config_vars) + setattr(self, attr, val) + + def expand_basedirs(self) -> None: + """Calls `os.path.expanduser` on install_base, install_platbase and + root.""" + self._expand_attrs(['install_base', 'install_platbase', 'root']) + + def expand_dirs(self) -> None: + """Calls `os.path.expanduser` on install dirs.""" + self._expand_attrs([ + 'install_purelib', + 'install_platlib', + 'install_lib', + 'install_headers', + 'install_scripts', + 'install_data', + ]) + + def convert_paths(self, *names) -> None: + """Call `convert_path` over `names`.""" + for name in names: + attr = "install_" + name + setattr(self, attr, convert_path(getattr(self, attr))) + + def handle_extra_path(self) -> None: + """Set `path_file` and `extra_dirs` using `extra_path`.""" + if self.extra_path is None: + self.extra_path = self.distribution.extra_path + + if self.extra_path is not None: + log.warning( + "Distribution option extra_path is deprecated. " + "See issue27919 for details." + ) + if isinstance(self.extra_path, str): + self.extra_path = self.extra_path.split(',') + + if len(self.extra_path) == 1: + path_file = extra_dirs = self.extra_path[0] + elif len(self.extra_path) == 2: + path_file, extra_dirs = self.extra_path + else: + raise DistutilsOptionError( + "'extra_path' option must be a list, tuple, or " + "comma-separated string with 1 or 2 elements" + ) + + # convert to local form in case Unix notation used (as it + # should be in setup scripts) + extra_dirs = convert_path(extra_dirs) + else: + path_file = None + extra_dirs = '' + + # XXX should we warn if path_file and not extra_dirs? (in which + # case the path file would be harmless but pointless) + self.path_file = path_file + self.extra_dirs = extra_dirs + + def change_roots(self, *names) -> None: + """Change the install directories pointed by name using root.""" + for name in names: + attr = "install_" + name + setattr(self, attr, change_root(self.root, getattr(self, attr))) + + def create_home_path(self) -> None: + """Create directories under ~.""" + if not self.user: + return + home = convert_path(os.path.expanduser("~")) + for path in self.config_vars.values(): + if str(path).startswith(home) and not os.path.isdir(path): + self.debug_print(f"os.makedirs('{path}', 0o700)") + os.makedirs(path, 0o700) + + # -- Command execution methods ------------------------------------- + + def run(self): + """Runs the command.""" + # Obviously have to build before we can install + if not self.skip_build: + self.run_command('build') + # If we built for any other platform, we can't install. + build_plat = self.distribution.get_command_obj('build').plat_name + # check warn_dir - it is a clue that the 'install' is happening + # internally, and not to sys.path, so we don't check the platform + # matches what we are running. + if self.warn_dir and build_plat != get_platform(): + raise DistutilsPlatformError("Can't install when cross-compiling") + + # Run all sub-commands (at least those that need to be run) + for cmd_name in self.get_sub_commands(): + self.run_command(cmd_name) + + if self.path_file: + self.create_path_file() + + # write list of installed files, if requested. + if self.record: + outputs = self.get_outputs() + if self.root: # strip any package prefix + root_len = len(self.root) + for counter in range(len(outputs)): + outputs[counter] = outputs[counter][root_len:] + self.execute( + write_file, + (self.record, outputs), + f"writing list of installed files to '{self.record}'", + ) + + sys_path = map(os.path.normpath, sys.path) + sys_path = map(os.path.normcase, sys_path) + install_lib = os.path.normcase(os.path.normpath(self.install_lib)) + if ( + self.warn_dir + and not (self.path_file and self.install_path_file) + and install_lib not in sys_path + ): + log.debug( + ( + "modules installed to '%s', which is not in " + "Python's module search path (sys.path) -- " + "you'll have to change the search path yourself" + ), + self.install_lib, + ) + + def create_path_file(self): + """Creates the .pth file""" + filename = os.path.join(self.install_libbase, self.path_file + ".pth") + if self.install_path_file: + self.execute( + write_file, (filename, [self.extra_dirs]), f"creating {filename}" + ) + else: + self.warn(f"path file '{filename}' not created") + + # -- Reporting methods --------------------------------------------- + + def get_outputs(self): + """Assembles the outputs of all the sub-commands.""" + outputs = [] + for cmd_name in self.get_sub_commands(): + cmd = self.get_finalized_command(cmd_name) + # Add the contents of cmd.get_outputs(), ensuring + # that outputs doesn't contain duplicate entries + for filename in cmd.get_outputs(): + if filename not in outputs: + outputs.append(filename) + + if self.path_file and self.install_path_file: + outputs.append(os.path.join(self.install_libbase, self.path_file + ".pth")) + + return outputs + + def get_inputs(self): + """Returns the inputs of all the sub-commands""" + # XXX gee, this looks familiar ;-( + inputs = [] + for cmd_name in self.get_sub_commands(): + cmd = self.get_finalized_command(cmd_name) + inputs.extend(cmd.get_inputs()) + + return inputs + + # -- Predicates for sub-command list ------------------------------- + + def has_lib(self): + """Returns true if the current distribution has any Python + modules to install.""" + return ( + self.distribution.has_pure_modules() or self.distribution.has_ext_modules() + ) + + def has_headers(self): + """Returns true if the current distribution has any headers to + install.""" + return self.distribution.has_headers() + + def has_scripts(self): + """Returns true if the current distribution has any scripts to. + install.""" + return self.distribution.has_scripts() + + def has_data(self): + """Returns true if the current distribution has any data to. + install.""" + return self.distribution.has_data_files() + + # 'sub_commands': a list of commands this command might have to run to + # get its work done. See cmd.py for more info. + sub_commands = [ + ('install_lib', has_lib), + ('install_headers', has_headers), + ('install_scripts', has_scripts), + ('install_data', has_data), + ('install_egg_info', lambda self: True), + ] diff --git a/setuptools/_distutils/command/install_data.py b/setuptools/_distutils/command/install_data.py new file mode 100644 index 0000000000..4ad186e8ec --- /dev/null +++ b/setuptools/_distutils/command/install_data.py @@ -0,0 +1,94 @@ +"""distutils.command.install_data + +Implements the Distutils 'install_data' command, for installing +platform-independent data files.""" + +# contributed by Bastian Kleineidam + +from __future__ import annotations + +import functools +import os +from collections.abc import Iterable +from typing import ClassVar + +from ..core import Command +from ..util import change_root, convert_path + + +class install_data(Command): + description = "install data files" + + user_options = [ + ( + 'install-dir=', + 'd', + "base directory for installing data files [default: installation base dir]", + ), + ('root=', None, "install everything relative to this alternate root directory"), + ('force', 'f', "force installation (overwrite existing files)"), + ] + + boolean_options: ClassVar[list[str]] = ['force'] + + def initialize_options(self): + self.install_dir = None + self.outfiles = [] + self.root = None + self.force = False + self.data_files = self.distribution.data_files + self.warn_dir = True + + def finalize_options(self) -> None: + self.set_undefined_options( + 'install', + ('install_data', 'install_dir'), + ('root', 'root'), + ('force', 'force'), + ) + + def run(self) -> None: + self.mkpath(self.install_dir) + for f in self.data_files: + self._copy(f) + + @functools.singledispatchmethod + def _copy(self, f: tuple[str | os.PathLike, Iterable[str | os.PathLike]]): + # it's a tuple with path to install to and a list of files + dir = convert_path(f[0]) + if not os.path.isabs(dir): + dir = os.path.join(self.install_dir, dir) + elif self.root: + dir = change_root(self.root, dir) + self.mkpath(dir) + + if f[1] == []: + # If there are no files listed, the user must be + # trying to create an empty directory, so add the + # directory to the list of output files. + self.outfiles.append(dir) + else: + # Copy files, adding them to the list of output files. + for data in f[1]: + data = convert_path(data) + (out, _) = self.copy_file(data, dir) + self.outfiles.append(out) + + @_copy.register(str) + @_copy.register(os.PathLike) + def _(self, f: str | os.PathLike): + # it's a simple file, so copy it + f = convert_path(f) + if self.warn_dir: + self.warn( + "setup script did not provide a directory for " + f"'{f}' -- installing right in '{self.install_dir}'" + ) + (out, _) = self.copy_file(f, self.install_dir) + self.outfiles.append(out) + + def get_inputs(self): + return self.data_files or [] + + def get_outputs(self): + return self.outfiles diff --git a/setuptools/_distutils/command/install_egg_info.py b/setuptools/_distutils/command/install_egg_info.py new file mode 100644 index 0000000000..230e94ab46 --- /dev/null +++ b/setuptools/_distutils/command/install_egg_info.py @@ -0,0 +1,91 @@ +""" +distutils.command.install_egg_info + +Implements the Distutils 'install_egg_info' command, for installing +a package's PKG-INFO metadata. +""" + +import os +import re +import sys +from typing import ClassVar + +from .. import dir_util +from .._log import log +from ..cmd import Command + + +class install_egg_info(Command): + """Install an .egg-info file for the package""" + + description = "Install package's PKG-INFO metadata as an .egg-info file" + user_options: ClassVar[list[tuple[str, str, str]]] = [ + ('install-dir=', 'd', "directory to install to"), + ] + + def initialize_options(self): + self.install_dir = None + + @property + def basename(self): + """ + Allow basename to be overridden by child class. + Ref pypa/distutils#2. + """ + name = to_filename(safe_name(self.distribution.get_name())) + version = to_filename(safe_version(self.distribution.get_version())) + return f"{name}-{version}-py{sys.version_info.major}.{sys.version_info.minor}.egg-info" + + def finalize_options(self): + self.set_undefined_options('install_lib', ('install_dir', 'install_dir')) + self.target = os.path.join(self.install_dir, self.basename) + self.outputs = [self.target] + + def run(self): + target = self.target + if os.path.isdir(target) and not os.path.islink(target): + dir_util.remove_tree(target, dry_run=self.dry_run) + elif os.path.exists(target): + self.execute(os.unlink, (self.target,), "Removing " + target) + elif not os.path.isdir(self.install_dir): + self.execute( + os.makedirs, (self.install_dir,), "Creating " + self.install_dir + ) + log.info("Writing %s", target) + if not self.dry_run: + with open(target, 'w', encoding='UTF-8') as f: + self.distribution.metadata.write_pkg_file(f) + + def get_outputs(self): + return self.outputs + + +# The following routines are taken from setuptools' pkg_resources module and +# can be replaced by importing them from pkg_resources once it is included +# in the stdlib. + + +def safe_name(name): + """Convert an arbitrary string to a standard distribution name + + Any runs of non-alphanumeric/. characters are replaced with a single '-'. + """ + return re.sub('[^A-Za-z0-9.]+', '-', name) + + +def safe_version(version): + """Convert an arbitrary string to a standard version string + + Spaces become dots, and all other non-alphanumeric characters become + dashes, with runs of multiple dashes condensed to a single dash. + """ + version = version.replace(' ', '.') + return re.sub('[^A-Za-z0-9.]+', '-', version) + + +def to_filename(name): + """Convert a project or version name to its filename-escaped form + + Any '-' characters are currently replaced with '_'. + """ + return name.replace('-', '_') diff --git a/setuptools/_distutils/command/install_headers.py b/setuptools/_distutils/command/install_headers.py new file mode 100644 index 0000000000..97af1371ef --- /dev/null +++ b/setuptools/_distutils/command/install_headers.py @@ -0,0 +1,46 @@ +"""distutils.command.install_headers + +Implements the Distutils 'install_headers' command, to install C/C++ header +files to the Python include directory.""" + +from typing import ClassVar + +from ..core import Command + + +# XXX force is never used +class install_headers(Command): + description = "install C/C++ header files" + + user_options: ClassVar[list[tuple[str, str, str]]] = [ + ('install-dir=', 'd', "directory to install header files to"), + ('force', 'f', "force installation (overwrite existing files)"), + ] + + boolean_options: ClassVar[list[str]] = ['force'] + + def initialize_options(self): + self.install_dir = None + self.force = False + self.outfiles = [] + + def finalize_options(self): + self.set_undefined_options( + 'install', ('install_headers', 'install_dir'), ('force', 'force') + ) + + def run(self): + headers = self.distribution.headers + if not headers: + return + + self.mkpath(self.install_dir) + for header in headers: + (out, _) = self.copy_file(header, self.install_dir) + self.outfiles.append(out) + + def get_inputs(self): + return self.distribution.headers or [] + + def get_outputs(self): + return self.outfiles diff --git a/setuptools/_distutils/command/install_lib.py b/setuptools/_distutils/command/install_lib.py new file mode 100644 index 0000000000..2aababf800 --- /dev/null +++ b/setuptools/_distutils/command/install_lib.py @@ -0,0 +1,238 @@ +"""distutils.command.install_lib + +Implements the Distutils 'install_lib' command +(install all Python modules).""" + +from __future__ import annotations + +import importlib.util +import os +import sys +from typing import Any, ClassVar + +from ..core import Command +from ..errors import DistutilsOptionError + +# Extension for Python source files. +PYTHON_SOURCE_EXTENSION = ".py" + + +class install_lib(Command): + description = "install all Python modules (extensions and pure Python)" + + # The byte-compilation options are a tad confusing. Here are the + # possible scenarios: + # 1) no compilation at all (--no-compile --no-optimize) + # 2) compile .pyc only (--compile --no-optimize; default) + # 3) compile .pyc and "opt-1" .pyc (--compile --optimize) + # 4) compile "opt-1" .pyc only (--no-compile --optimize) + # 5) compile .pyc and "opt-2" .pyc (--compile --optimize-more) + # 6) compile "opt-2" .pyc only (--no-compile --optimize-more) + # + # The UI for this is two options, 'compile' and 'optimize'. + # 'compile' is strictly boolean, and only decides whether to + # generate .pyc files. 'optimize' is three-way (0, 1, or 2), and + # decides both whether to generate .pyc files and what level of + # optimization to use. + + user_options = [ + ('install-dir=', 'd', "directory to install to"), + ('build-dir=', 'b', "build directory (where to install from)"), + ('force', 'f', "force installation (overwrite existing files)"), + ('compile', 'c', "compile .py to .pyc [default]"), + ('no-compile', None, "don't compile .py files"), + ( + 'optimize=', + 'O', + "also compile with optimization: -O1 for \"python -O\", " + "-O2 for \"python -OO\", and -O0 to disable [default: -O0]", + ), + ('skip-build', None, "skip the build steps"), + ] + + boolean_options: ClassVar[list[str]] = ['force', 'compile', 'skip-build'] + negative_opt: ClassVar[dict[str, str]] = {'no-compile': 'compile'} + + def initialize_options(self): + # let the 'install' command dictate our installation directory + self.install_dir = None + self.build_dir = None + self.force = False + self.compile = None + self.optimize = None + self.skip_build = None + + def finalize_options(self) -> None: + # Get all the information we need to install pure Python modules + # from the umbrella 'install' command -- build (source) directory, + # install (target) directory, and whether to compile .py files. + self.set_undefined_options( + 'install', + ('build_lib', 'build_dir'), + ('install_lib', 'install_dir'), + ('force', 'force'), + ('compile', 'compile'), + ('optimize', 'optimize'), + ('skip_build', 'skip_build'), + ) + + if self.compile is None: + self.compile = True + if self.optimize is None: + self.optimize = False + + if not isinstance(self.optimize, int): + try: + self.optimize = int(self.optimize) + except ValueError: + pass + if self.optimize not in (0, 1, 2): + raise DistutilsOptionError("optimize must be 0, 1, or 2") + + def run(self) -> None: + # Make sure we have built everything we need first + self.build() + + # Install everything: simply dump the entire contents of the build + # directory to the installation directory (that's the beauty of + # having a build directory!) + outfiles = self.install() + + # (Optionally) compile .py to .pyc + if outfiles is not None and self.distribution.has_pure_modules(): + self.byte_compile(outfiles) + + # -- Top-level worker functions ------------------------------------ + # (called from 'run()') + + def build(self) -> None: + if not self.skip_build: + if self.distribution.has_pure_modules(): + self.run_command('build_py') + if self.distribution.has_ext_modules(): + self.run_command('build_ext') + + # Any: https://typing.readthedocs.io/en/latest/guides/writing_stubs.html#the-any-trick + def install(self) -> list[str] | Any: + if os.path.isdir(self.build_dir): + outfiles = self.copy_tree(self.build_dir, self.install_dir) + else: + self.warn( + f"'{self.build_dir}' does not exist -- no Python modules to install" + ) + return + return outfiles + + def byte_compile(self, files) -> None: + if sys.dont_write_bytecode: + self.warn('byte-compiling is disabled, skipping.') + return + + from ..util import byte_compile + + # Get the "--root" directory supplied to the "install" command, + # and use it as a prefix to strip off the purported filename + # encoded in bytecode files. This is far from complete, but it + # should at least generate usable bytecode in RPM distributions. + install_root = self.get_finalized_command('install').root + + if self.compile: + byte_compile( + files, + optimize=0, + force=self.force, + prefix=install_root, + dry_run=self.dry_run, + ) + if self.optimize > 0: + byte_compile( + files, + optimize=self.optimize, + force=self.force, + prefix=install_root, + verbose=self.verbose, + dry_run=self.dry_run, + ) + + # -- Utility methods ----------------------------------------------- + + def _mutate_outputs(self, has_any, build_cmd, cmd_option, output_dir): + if not has_any: + return [] + + build_cmd = self.get_finalized_command(build_cmd) + build_files = build_cmd.get_outputs() + build_dir = getattr(build_cmd, cmd_option) + + prefix_len = len(build_dir) + len(os.sep) + outputs = [os.path.join(output_dir, file[prefix_len:]) for file in build_files] + + return outputs + + def _bytecode_filenames(self, py_filenames): + bytecode_files = [] + for py_file in py_filenames: + # Since build_py handles package data installation, the + # list of outputs can contain more than just .py files. + # Make sure we only report bytecode for the .py files. + ext = os.path.splitext(os.path.normcase(py_file))[1] + if ext != PYTHON_SOURCE_EXTENSION: + continue + if self.compile: + bytecode_files.append( + importlib.util.cache_from_source(py_file, optimization='') + ) + if self.optimize > 0: + bytecode_files.append( + importlib.util.cache_from_source( + py_file, optimization=self.optimize + ) + ) + + return bytecode_files + + # -- External interface -------------------------------------------- + # (called by outsiders) + + def get_outputs(self): + """Return the list of files that would be installed if this command + were actually run. Not affected by the "dry-run" flag or whether + modules have actually been built yet. + """ + pure_outputs = self._mutate_outputs( + self.distribution.has_pure_modules(), + 'build_py', + 'build_lib', + self.install_dir, + ) + if self.compile: + bytecode_outputs = self._bytecode_filenames(pure_outputs) + else: + bytecode_outputs = [] + + ext_outputs = self._mutate_outputs( + self.distribution.has_ext_modules(), + 'build_ext', + 'build_lib', + self.install_dir, + ) + + return pure_outputs + bytecode_outputs + ext_outputs + + def get_inputs(self): + """Get the list of files that are input to this command, ie. the + files that get installed as they are named in the build tree. + The files in this list correspond one-to-one to the output + filenames returned by 'get_outputs()'. + """ + inputs = [] + + if self.distribution.has_pure_modules(): + build_py = self.get_finalized_command('build_py') + inputs.extend(build_py.get_outputs()) + + if self.distribution.has_ext_modules(): + build_ext = self.get_finalized_command('build_ext') + inputs.extend(build_ext.get_outputs()) + + return inputs diff --git a/setuptools/_distutils/command/install_scripts.py b/setuptools/_distutils/command/install_scripts.py new file mode 100644 index 0000000000..92e8694111 --- /dev/null +++ b/setuptools/_distutils/command/install_scripts.py @@ -0,0 +1,62 @@ +"""distutils.command.install_scripts + +Implements the Distutils 'install_scripts' command, for installing +Python scripts.""" + +# contributed by Bastian Kleineidam + +import os +from distutils._log import log +from stat import ST_MODE +from typing import ClassVar + +from ..core import Command + + +class install_scripts(Command): + description = "install scripts (Python or otherwise)" + + user_options = [ + ('install-dir=', 'd', "directory to install scripts to"), + ('build-dir=', 'b', "build directory (where to install from)"), + ('force', 'f', "force installation (overwrite existing files)"), + ('skip-build', None, "skip the build steps"), + ] + + boolean_options: ClassVar[list[str]] = ['force', 'skip-build'] + + def initialize_options(self): + self.install_dir = None + self.force = False + self.build_dir = None + self.skip_build = None + + def finalize_options(self) -> None: + self.set_undefined_options('build', ('build_scripts', 'build_dir')) + self.set_undefined_options( + 'install', + ('install_scripts', 'install_dir'), + ('force', 'force'), + ('skip_build', 'skip_build'), + ) + + def run(self) -> None: + if not self.skip_build: + self.run_command('build_scripts') + self.outfiles = self.copy_tree(self.build_dir, self.install_dir) + if os.name == 'posix': + # Set the executable bits (owner, group, and world) on + # all the scripts we just installed. + for file in self.get_outputs(): + if self.dry_run: + log.info("changing mode of %s", file) + else: + mode = ((os.stat(file)[ST_MODE]) | 0o555) & 0o7777 + log.info("changing mode of %s to %o", file, mode) + os.chmod(file, mode) + + def get_inputs(self): + return self.distribution.scripts or [] + + def get_outputs(self): + return self.outfiles or [] diff --git a/setuptools/_distutils/command/sdist.py b/setuptools/_distutils/command/sdist.py new file mode 100644 index 0000000000..b3bf0c326a --- /dev/null +++ b/setuptools/_distutils/command/sdist.py @@ -0,0 +1,521 @@ +"""distutils.command.sdist + +Implements the Distutils 'sdist' command (create a source distribution).""" + +from __future__ import annotations + +import os +import sys +from collections.abc import Callable +from distutils import archive_util, dir_util, file_util +from distutils._log import log +from glob import glob +from itertools import filterfalse +from typing import ClassVar + +from ..core import Command +from ..errors import DistutilsOptionError, DistutilsTemplateError +from ..filelist import FileList +from ..text_file import TextFile +from ..util import convert_path + + +def show_formats(): + """Print all possible values for the 'formats' option (used by + the "--help-formats" command-line option). + """ + from ..archive_util import ARCHIVE_FORMATS + from ..fancy_getopt import FancyGetopt + + formats = sorted( + ("formats=" + format, None, ARCHIVE_FORMATS[format][2]) + for format in ARCHIVE_FORMATS.keys() + ) + FancyGetopt(formats).print_help("List of available source distribution formats:") + + +class sdist(Command): + description = "create a source distribution (tarball, zip file, etc.)" + + def checking_metadata(self) -> bool: + """Callable used for the check sub-command. + + Placed here so user_options can view it""" + return self.metadata_check + + user_options = [ + ('template=', 't', "name of manifest template file [default: MANIFEST.in]"), + ('manifest=', 'm', "name of manifest file [default: MANIFEST]"), + ( + 'use-defaults', + None, + "include the default file set in the manifest " + "[default; disable with --no-defaults]", + ), + ('no-defaults', None, "don't include the default file set"), + ( + 'prune', + None, + "specifically exclude files/directories that should not be " + "distributed (build tree, RCS/CVS dirs, etc.) " + "[default; disable with --no-prune]", + ), + ('no-prune', None, "don't automatically exclude anything"), + ( + 'manifest-only', + 'o', + "just regenerate the manifest and then stop (implies --force-manifest)", + ), + ( + 'force-manifest', + 'f', + "forcibly regenerate the manifest and carry on as usual. " + "Deprecated: now the manifest is always regenerated.", + ), + ('formats=', None, "formats for source distribution (comma-separated list)"), + ( + 'keep-temp', + 'k', + "keep the distribution tree around after creating " + "archive file(s)", + ), + ( + 'dist-dir=', + 'd', + "directory to put the source distribution archive(s) in [default: dist]", + ), + ( + 'metadata-check', + None, + "Ensure that all required elements of meta-data " + "are supplied. Warn if any missing. [default]", + ), + ( + 'owner=', + 'u', + "Owner name used when creating a tar file [default: current user]", + ), + ( + 'group=', + 'g', + "Group name used when creating a tar file [default: current group]", + ), + ] + + boolean_options: ClassVar[list[str]] = [ + 'use-defaults', + 'prune', + 'manifest-only', + 'force-manifest', + 'keep-temp', + 'metadata-check', + ] + + help_options: ClassVar[list[tuple[str, str | None, str, Callable[[], object]]]] = [ + ('help-formats', None, "list available distribution formats", show_formats), + ] + + negative_opt: ClassVar[dict[str, str]] = { + 'no-defaults': 'use-defaults', + 'no-prune': 'prune', + } + + sub_commands = [('check', checking_metadata)] + + READMES: ClassVar[tuple[str, ...]] = ('README', 'README.txt', 'README.rst') + + def initialize_options(self): + # 'template' and 'manifest' are, respectively, the names of + # the manifest template and manifest file. + self.template = None + self.manifest = None + + # 'use_defaults': if true, we will include the default file set + # in the manifest + self.use_defaults = True + self.prune = True + + self.manifest_only = False + self.force_manifest = False + + self.formats = ['gztar'] + self.keep_temp = False + self.dist_dir = None + + self.archive_files = None + self.metadata_check = True + self.owner = None + self.group = None + + def finalize_options(self) -> None: + if self.manifest is None: + self.manifest = "MANIFEST" + if self.template is None: + self.template = "MANIFEST.in" + + self.ensure_string_list('formats') + + bad_format = archive_util.check_archive_formats(self.formats) + if bad_format: + raise DistutilsOptionError(f"unknown archive format '{bad_format}'") + + if self.dist_dir is None: + self.dist_dir = "dist" + + def run(self) -> None: + # 'filelist' contains the list of files that will make up the + # manifest + self.filelist = FileList() + + # Run sub commands + for cmd_name in self.get_sub_commands(): + self.run_command(cmd_name) + + # Do whatever it takes to get the list of files to process + # (process the manifest template, read an existing manifest, + # whatever). File list is accumulated in 'self.filelist'. + self.get_file_list() + + # If user just wanted us to regenerate the manifest, stop now. + if self.manifest_only: + return + + # Otherwise, go ahead and create the source distribution tarball, + # or zipfile, or whatever. + self.make_distribution() + + def get_file_list(self) -> None: + """Figure out the list of files to include in the source + distribution, and put it in 'self.filelist'. This might involve + reading the manifest template (and writing the manifest), or just + reading the manifest, or just using the default file set -- it all + depends on the user's options. + """ + # new behavior when using a template: + # the file list is recalculated every time because + # even if MANIFEST.in or setup.py are not changed + # the user might have added some files in the tree that + # need to be included. + # + # This makes --force the default and only behavior with templates. + template_exists = os.path.isfile(self.template) + if not template_exists and self._manifest_is_not_generated(): + self.read_manifest() + self.filelist.sort() + self.filelist.remove_duplicates() + return + + if not template_exists: + self.warn( + ("manifest template '%s' does not exist " + "(using default file list)") + % self.template + ) + self.filelist.findall() + + if self.use_defaults: + self.add_defaults() + + if template_exists: + self.read_template() + + if self.prune: + self.prune_file_list() + + self.filelist.sort() + self.filelist.remove_duplicates() + self.write_manifest() + + def add_defaults(self) -> None: + """Add all the default files to self.filelist: + - README or README.txt + - setup.py + - tests/test*.py and test/test*.py + - all pure Python modules mentioned in setup script + - all files pointed by package_data (build_py) + - all files defined in data_files. + - all files defined as scripts. + - all C sources listed as part of extensions or C libraries + in the setup script (doesn't catch C headers!) + Warns if (README or README.txt) or setup.py are missing; everything + else is optional. + """ + self._add_defaults_standards() + self._add_defaults_optional() + self._add_defaults_python() + self._add_defaults_data_files() + self._add_defaults_ext() + self._add_defaults_c_libs() + self._add_defaults_scripts() + + @staticmethod + def _cs_path_exists(fspath): + """ + Case-sensitive path existence check + + >>> sdist._cs_path_exists(__file__) + True + >>> sdist._cs_path_exists(__file__.upper()) + False + """ + if not os.path.exists(fspath): + return False + # make absolute so we always have a directory + abspath = os.path.abspath(fspath) + directory, filename = os.path.split(abspath) + return filename in os.listdir(directory) + + def _add_defaults_standards(self): + standards = [self.READMES, self.distribution.script_name] + for fn in standards: + if isinstance(fn, tuple): + alts = fn + got_it = False + for fn in alts: + if self._cs_path_exists(fn): + got_it = True + self.filelist.append(fn) + break + + if not got_it: + self.warn( + "standard file not found: should have one of " + ', '.join(alts) + ) + else: + if self._cs_path_exists(fn): + self.filelist.append(fn) + else: + self.warn(f"standard file '{fn}' not found") + + def _add_defaults_optional(self): + optional = ['tests/test*.py', 'test/test*.py', 'setup.cfg'] + for pattern in optional: + files = filter(os.path.isfile, glob(pattern)) + self.filelist.extend(files) + + def _add_defaults_python(self): + # build_py is used to get: + # - python modules + # - files defined in package_data + build_py = self.get_finalized_command('build_py') + + # getting python files + if self.distribution.has_pure_modules(): + self.filelist.extend(build_py.get_source_files()) + + # getting package_data files + # (computed in build_py.data_files by build_py.finalize_options) + for _pkg, src_dir, _build_dir, filenames in build_py.data_files: + for filename in filenames: + self.filelist.append(os.path.join(src_dir, filename)) + + def _add_defaults_data_files(self): + # getting distribution.data_files + if self.distribution.has_data_files(): + for item in self.distribution.data_files: + if isinstance(item, str): + # plain file + item = convert_path(item) + if os.path.isfile(item): + self.filelist.append(item) + else: + # a (dirname, filenames) tuple + dirname, filenames = item + for f in filenames: + f = convert_path(f) + if os.path.isfile(f): + self.filelist.append(f) + + def _add_defaults_ext(self): + if self.distribution.has_ext_modules(): + build_ext = self.get_finalized_command('build_ext') + self.filelist.extend(build_ext.get_source_files()) + + def _add_defaults_c_libs(self): + if self.distribution.has_c_libraries(): + build_clib = self.get_finalized_command('build_clib') + self.filelist.extend(build_clib.get_source_files()) + + def _add_defaults_scripts(self): + if self.distribution.has_scripts(): + build_scripts = self.get_finalized_command('build_scripts') + self.filelist.extend(build_scripts.get_source_files()) + + def read_template(self) -> None: + """Read and parse manifest template file named by self.template. + + (usually "MANIFEST.in") The parsing and processing is done by + 'self.filelist', which updates itself accordingly. + """ + log.info("reading manifest template '%s'", self.template) + template = TextFile( + self.template, + strip_comments=True, + skip_blanks=True, + join_lines=True, + lstrip_ws=True, + rstrip_ws=True, + collapse_join=True, + ) + + try: + while True: + line = template.readline() + if line is None: # end of file + break + + try: + self.filelist.process_template_line(line) + # the call above can raise a DistutilsTemplateError for + # malformed lines, or a ValueError from the lower-level + # convert_path function + except (DistutilsTemplateError, ValueError) as msg: + self.warn( + f"{template.filename}, line {int(template.current_line)}: {msg}" + ) + finally: + template.close() + + def prune_file_list(self) -> None: + """Prune off branches that might slip into the file list as created + by 'read_template()', but really don't belong there: + * the build tree (typically "build") + * the release tree itself (only an issue if we ran "sdist" + previously with --keep-temp, or it aborted) + * any RCS, CVS, .svn, .hg, .git, .bzr, _darcs directories + """ + build = self.get_finalized_command('build') + base_dir = self.distribution.get_fullname() + + self.filelist.exclude_pattern(None, prefix=os.fspath(build.build_base)) + self.filelist.exclude_pattern(None, prefix=base_dir) + + if sys.platform == 'win32': + seps = r'/|\\' + else: + seps = '/' + + vcs_dirs = ['RCS', 'CVS', r'\.svn', r'\.hg', r'\.git', r'\.bzr', '_darcs'] + vcs_ptrn = r'(^|{})({})({}).*'.format(seps, '|'.join(vcs_dirs), seps) + self.filelist.exclude_pattern(vcs_ptrn, is_regex=True) + + def write_manifest(self) -> None: + """Write the file list in 'self.filelist' (presumably as filled in + by 'add_defaults()' and 'read_template()') to the manifest file + named by 'self.manifest'. + """ + if self._manifest_is_not_generated(): + log.info( + f"not writing to manually maintained manifest file '{self.manifest}'" + ) + return + + content = self.filelist.files[:] + content.insert(0, '# file GENERATED by distutils, do NOT edit') + self.execute( + file_util.write_file, + (self.manifest, content), + f"writing manifest file '{self.manifest}'", + ) + + def _manifest_is_not_generated(self): + # check for special comment used in 3.1.3 and higher + if not os.path.isfile(self.manifest): + return False + + with open(self.manifest, encoding='utf-8') as fp: + first_line = next(fp) + return first_line != '# file GENERATED by distutils, do NOT edit\n' + + def read_manifest(self) -> None: + """Read the manifest file (named by 'self.manifest') and use it to + fill in 'self.filelist', the list of files to include in the source + distribution. + """ + log.info("reading manifest file '%s'", self.manifest) + with open(self.manifest, encoding='utf-8') as lines: + self.filelist.extend( + # ignore comments and blank lines + filter(None, filterfalse(is_comment, map(str.strip, lines))) + ) + + def make_release_tree(self, base_dir, files) -> None: + """Create the directory tree that will become the source + distribution archive. All directories implied by the filenames in + 'files' are created under 'base_dir', and then we hard link or copy + (if hard linking is unavailable) those files into place. + Essentially, this duplicates the developer's source tree, but in a + directory named after the distribution, containing only the files + to be distributed. + """ + # Create all the directories under 'base_dir' necessary to + # put 'files' there; the 'mkpath()' is just so we don't die + # if the manifest happens to be empty. + self.mkpath(base_dir) + dir_util.create_tree(base_dir, files, dry_run=self.dry_run) + + # And walk over the list of files, either making a hard link (if + # os.link exists) to each one that doesn't already exist in its + # corresponding location under 'base_dir', or copying each file + # that's out-of-date in 'base_dir'. (Usually, all files will be + # out-of-date, because by default we blow away 'base_dir' when + # we're done making the distribution archives.) + + if hasattr(os, 'link'): # can make hard links on this system + link = 'hard' + msg = f"making hard links in {base_dir}..." + else: # nope, have to copy + link = None + msg = f"copying files to {base_dir}..." + + if not files: + log.warning("no files to distribute -- empty manifest?") + else: + log.info(msg) + for file in files: + if not os.path.isfile(file): + log.warning("'%s' not a regular file -- skipping", file) + else: + dest = os.path.join(base_dir, file) + self.copy_file(file, dest, link=link) + + self.distribution.metadata.write_pkg_info(base_dir) + + def make_distribution(self) -> None: + """Create the source distribution(s). First, we create the release + tree with 'make_release_tree()'; then, we create all required + archive files (according to 'self.formats') from the release tree. + Finally, we clean up by blowing away the release tree (unless + 'self.keep_temp' is true). The list of archive files created is + stored so it can be retrieved later by 'get_archive_files()'. + """ + # Don't warn about missing meta-data here -- should be (and is!) + # done elsewhere. + base_dir = self.distribution.get_fullname() + base_name = os.path.join(self.dist_dir, base_dir) + + self.make_release_tree(base_dir, self.filelist.files) + archive_files = [] # remember names of files we create + # tar archive must be created last to avoid overwrite and remove + if 'tar' in self.formats: + self.formats.append(self.formats.pop(self.formats.index('tar'))) + + for fmt in self.formats: + file = self.make_archive( + base_name, fmt, base_dir=base_dir, owner=self.owner, group=self.group + ) + archive_files.append(file) + self.distribution.dist_files.append(('sdist', '', file)) + + self.archive_files = archive_files + + if not self.keep_temp: + dir_util.remove_tree(base_dir, dry_run=self.dry_run) + + def get_archive_files(self): + """Return the list of archive files created when the command + was run, or None if the command hasn't run yet. + """ + return self.archive_files + + +def is_comment(line: str) -> bool: + return line.startswith('#') diff --git a/setuptools/_distutils/compat/__init__.py b/setuptools/_distutils/compat/__init__.py new file mode 100644 index 0000000000..2c43729b09 --- /dev/null +++ b/setuptools/_distutils/compat/__init__.py @@ -0,0 +1,18 @@ +from __future__ import annotations + +from collections.abc import Iterable +from typing import TypeVar + +_IterableT = TypeVar("_IterableT", bound="Iterable[str]") + + +def consolidate_linker_args(args: _IterableT) -> _IterableT | str: + """ + Ensure the return value is a string for backward compatibility. + + Retain until at least 2025-04-31. See pypa/distutils#246 + """ + + if not all(arg.startswith('-Wl,') for arg in args): + return args + return '-Wl,' + ','.join(arg.removeprefix('-Wl,') for arg in args) diff --git a/setuptools/_distutils/compat/numpy.py b/setuptools/_distutils/compat/numpy.py new file mode 100644 index 0000000000..73eca7acb1 --- /dev/null +++ b/setuptools/_distutils/compat/numpy.py @@ -0,0 +1,2 @@ +# required for older numpy versions on Pythons prior to 3.12; see pypa/setuptools#4876 +from ..compilers.C.base import _default_compilers, compiler_class # noqa: F401 diff --git a/setuptools/_distutils/compat/py39.py b/setuptools/_distutils/compat/py39.py new file mode 100644 index 0000000000..1b436d7658 --- /dev/null +++ b/setuptools/_distutils/compat/py39.py @@ -0,0 +1,66 @@ +import functools +import itertools +import platform +import sys + + +def add_ext_suffix_39(vars): + """ + Ensure vars contains 'EXT_SUFFIX'. pypa/distutils#130 + """ + import _imp + + ext_suffix = _imp.extension_suffixes()[0] + vars.update( + EXT_SUFFIX=ext_suffix, + # sysconfig sets SO to match EXT_SUFFIX, so maintain + # that expectation. + # https://github.com/python/cpython/blob/785cc6770588de087d09e89a69110af2542be208/Lib/sysconfig.py#L671-L673 + SO=ext_suffix, + ) + + +needs_ext_suffix = sys.version_info < (3, 10) and platform.system() == 'Windows' +add_ext_suffix = add_ext_suffix_39 if needs_ext_suffix else lambda vars: None + + +# from more_itertools +class UnequalIterablesError(ValueError): + def __init__(self, details=None): + msg = 'Iterables have different lengths' + if details is not None: + msg += (': index 0 has length {}; index {} has length {}').format(*details) + + super().__init__(msg) + + +# from more_itertools +def _zip_equal_generator(iterables): + _marker = object() + for combo in itertools.zip_longest(*iterables, fillvalue=_marker): + for val in combo: + if val is _marker: + raise UnequalIterablesError() + yield combo + + +# from more_itertools +def _zip_equal(*iterables): + # Check whether the iterables are all the same size. + try: + first_size = len(iterables[0]) + for i, it in enumerate(iterables[1:], 1): + size = len(it) + if size != first_size: + raise UnequalIterablesError(details=(first_size, i, size)) + # All sizes are equal, we can use the built-in zip. + return zip(*iterables) + # If any one of the iterables didn't have a length, start reading + # them until one runs out. + except TypeError: + return _zip_equal_generator(iterables) + + +zip_strict = ( + _zip_equal if sys.version_info < (3, 10) else functools.partial(zip, strict=True) +) diff --git a/setuptools/_distutils/compilers/C/base.py b/setuptools/_distutils/compilers/C/base.py new file mode 100644 index 0000000000..5efd2a39d6 --- /dev/null +++ b/setuptools/_distutils/compilers/C/base.py @@ -0,0 +1,1394 @@ +"""distutils.ccompiler + +Contains Compiler, an abstract base class that defines the interface +for the Distutils compiler abstraction model.""" + +from __future__ import annotations + +import os +import pathlib +import re +import sys +import warnings +from collections.abc import Callable, Iterable, MutableSequence, Sequence +from typing import ( + TYPE_CHECKING, + ClassVar, + Literal, + TypeVar, + Union, + overload, +) + +from more_itertools import always_iterable + +from ..._log import log +from ..._modified import newer_group +from ...dir_util import mkpath +from ...errors import ( + DistutilsModuleError, + DistutilsPlatformError, +) +from ...file_util import move_file +from ...spawn import spawn +from ...util import execute, is_mingw, split_quoted +from .errors import ( + CompileError, + LinkError, + UnknownFileType, +) + +if TYPE_CHECKING: + from typing_extensions import TypeAlias, TypeVarTuple, Unpack + + _Ts = TypeVarTuple("_Ts") + +_Macro: TypeAlias = Union[tuple[str], tuple[str, Union[str, None]]] +_StrPathT = TypeVar("_StrPathT", bound="str | os.PathLike[str]") +_BytesPathT = TypeVar("_BytesPathT", bound="bytes | os.PathLike[bytes]") + + +class Compiler: + """Abstract base class to define the interface that must be implemented + by real compiler classes. Also has some utility methods used by + several compiler classes. + + The basic idea behind a compiler abstraction class is that each + instance can be used for all the compile/link steps in building a + single project. Thus, attributes common to all of those compile and + link steps -- include directories, macros to define, libraries to link + against, etc. -- are attributes of the compiler instance. To allow for + variability in how individual files are treated, most of those + attributes may be varied on a per-compilation or per-link basis. + """ + + # 'compiler_type' is a class attribute that identifies this class. It + # keeps code that wants to know what kind of compiler it's dealing with + # from having to import all possible compiler classes just to do an + # 'isinstance'. In concrete CCompiler subclasses, 'compiler_type' + # should really, really be one of the keys of the 'compiler_class' + # dictionary (see below -- used by the 'new_compiler()' factory + # function) -- authors of new compiler interface classes are + # responsible for updating 'compiler_class'! + compiler_type: ClassVar[str] = None # type: ignore[assignment] + + # XXX things not handled by this compiler abstraction model: + # * client can't provide additional options for a compiler, + # e.g. warning, optimization, debugging flags. Perhaps this + # should be the domain of concrete compiler abstraction classes + # (UnixCCompiler, MSVCCompiler, etc.) -- or perhaps the base + # class should have methods for the common ones. + # * can't completely override the include or library searchg + # path, ie. no "cc -I -Idir1 -Idir2" or "cc -L -Ldir1 -Ldir2". + # I'm not sure how widely supported this is even by Unix + # compilers, much less on other platforms. And I'm even less + # sure how useful it is; maybe for cross-compiling, but + # support for that is a ways off. (And anyways, cross + # compilers probably have a dedicated binary with the + # right paths compiled in. I hope.) + # * can't do really freaky things with the library list/library + # dirs, e.g. "-Ldir1 -lfoo -Ldir2 -lfoo" to link against + # different versions of libfoo.a in different locations. I + # think this is useless without the ability to null out the + # library search path anyways. + + executables: ClassVar[dict] + + # Subclasses that rely on the standard filename generation methods + # implemented below should override these; see the comment near + # those methods ('object_filenames()' et. al.) for details: + src_extensions: ClassVar[list[str] | None] = None + obj_extension: ClassVar[str | None] = None + static_lib_extension: ClassVar[str | None] = None + shared_lib_extension: ClassVar[str | None] = None + static_lib_format: ClassVar[str | None] = None # format string + shared_lib_format: ClassVar[str | None] = None # prob. same as static_lib_format + exe_extension: ClassVar[str | None] = None + + # Default language settings. language_map is used to detect a source + # file or Extension target language, checking source filenames. + # language_order is used to detect the language precedence, when deciding + # what language to use when mixing source types. For example, if some + # extension has two files with ".c" extension, and one with ".cpp", it + # is still linked as c++. + language_map: ClassVar[dict[str, str]] = { + ".c": "c", + ".cc": "c++", + ".cpp": "c++", + ".cxx": "c++", + ".m": "objc", + } + language_order: ClassVar[list[str]] = ["c++", "objc", "c"] + + include_dirs: list[str] = [] + """ + include dirs specific to this compiler class + """ + + library_dirs: list[str] = [] + """ + library dirs specific to this compiler class + """ + + def __init__( + self, verbose: bool = False, dry_run: bool = False, force: bool = False + ) -> None: + self.dry_run = dry_run + self.force = force + self.verbose = verbose + + # 'output_dir': a common output directory for object, library, + # shared object, and shared library files + self.output_dir: str | None = None + + # 'macros': a list of macro definitions (or undefinitions). A + # macro definition is a 2-tuple (name, value), where the value is + # either a string or None (no explicit value). A macro + # undefinition is a 1-tuple (name,). + self.macros: list[_Macro] = [] + + # 'include_dirs': a list of directories to search for include files + self.include_dirs = [] + + # 'libraries': a list of libraries to include in any link + # (library names, not filenames: eg. "foo" not "libfoo.a") + self.libraries: list[str] = [] + + # 'library_dirs': a list of directories to search for libraries + self.library_dirs = [] + + # 'runtime_library_dirs': a list of directories to search for + # shared libraries/objects at runtime + self.runtime_library_dirs: list[str] = [] + + # 'objects': a list of object files (or similar, such as explicitly + # named library files) to include on any link + self.objects: list[str] = [] + + for key in self.executables.keys(): + self.set_executable(key, self.executables[key]) + + def set_executables(self, **kwargs: str) -> None: + """Define the executables (and options for them) that will be run + to perform the various stages of compilation. The exact set of + executables that may be specified here depends on the compiler + class (via the 'executables' class attribute), but most will have: + compiler the C/C++ compiler + linker_so linker used to create shared objects and libraries + linker_exe linker used to create binary executables + archiver static library creator + + On platforms with a command-line (Unix, DOS/Windows), each of these + is a string that will be split into executable name and (optional) + list of arguments. (Splitting the string is done similarly to how + Unix shells operate: words are delimited by spaces, but quotes and + backslashes can override this. See + 'distutils.util.split_quoted()'.) + """ + + # Note that some CCompiler implementation classes will define class + # attributes 'cpp', 'cc', etc. with hard-coded executable names; + # this is appropriate when a compiler class is for exactly one + # compiler/OS combination (eg. MSVCCompiler). Other compiler + # classes (UnixCCompiler, in particular) are driven by information + # discovered at run-time, since there are many different ways to do + # basically the same things with Unix C compilers. + + for key in kwargs: + if key not in self.executables: + raise ValueError( + f"unknown executable '{key}' for class {self.__class__.__name__}" + ) + self.set_executable(key, kwargs[key]) + + def set_executable(self, key, value): + if isinstance(value, str): + setattr(self, key, split_quoted(value)) + else: + setattr(self, key, value) + + def _find_macro(self, name): + i = 0 + for defn in self.macros: + if defn[0] == name: + return i + i += 1 + return None + + def _check_macro_definitions(self, definitions): + """Ensure that every element of 'definitions' is valid.""" + for defn in definitions: + self._check_macro_definition(*defn) + + def _check_macro_definition(self, defn): + """ + Raise a TypeError if defn is not valid. + + A valid definition is either a (name, value) 2-tuple or a (name,) tuple. + """ + if not isinstance(defn, tuple) or not self._is_valid_macro(*defn): + raise TypeError( + f"invalid macro definition '{defn}': " + "must be tuple (string,), (string, string), or (string, None)" + ) + + @staticmethod + def _is_valid_macro(name, value=None): + """ + A valid macro is a ``name : str`` and a ``value : str | None``. + + >>> Compiler._is_valid_macro('foo', None) + True + """ + return isinstance(name, str) and isinstance(value, (str, type(None))) + + # -- Bookkeeping methods ------------------------------------------- + + def define_macro(self, name: str, value: str | None = None) -> None: + """Define a preprocessor macro for all compilations driven by this + compiler object. The optional parameter 'value' should be a + string; if it is not supplied, then the macro will be defined + without an explicit value and the exact outcome depends on the + compiler used (XXX true? does ANSI say anything about this?) + """ + # Delete from the list of macro definitions/undefinitions if + # already there (so that this one will take precedence). + i = self._find_macro(name) + if i is not None: + del self.macros[i] + + self.macros.append((name, value)) + + def undefine_macro(self, name: str) -> None: + """Undefine a preprocessor macro for all compilations driven by + this compiler object. If the same macro is defined by + 'define_macro()' and undefined by 'undefine_macro()' the last call + takes precedence (including multiple redefinitions or + undefinitions). If the macro is redefined/undefined on a + per-compilation basis (ie. in the call to 'compile()'), then that + takes precedence. + """ + # Delete from the list of macro definitions/undefinitions if + # already there (so that this one will take precedence). + i = self._find_macro(name) + if i is not None: + del self.macros[i] + + undefn = (name,) + self.macros.append(undefn) + + def add_include_dir(self, dir: str) -> None: + """Add 'dir' to the list of directories that will be searched for + header files. The compiler is instructed to search directories in + the order in which they are supplied by successive calls to + 'add_include_dir()'. + """ + self.include_dirs.append(dir) + + def set_include_dirs(self, dirs: list[str]) -> None: + """Set the list of directories that will be searched to 'dirs' (a + list of strings). Overrides any preceding calls to + 'add_include_dir()'; subsequence calls to 'add_include_dir()' add + to the list passed to 'set_include_dirs()'. This does not affect + any list of standard include directories that the compiler may + search by default. + """ + self.include_dirs = dirs[:] + + def add_library(self, libname: str) -> None: + """Add 'libname' to the list of libraries that will be included in + all links driven by this compiler object. Note that 'libname' + should *not* be the name of a file containing a library, but the + name of the library itself: the actual filename will be inferred by + the linker, the compiler, or the compiler class (depending on the + platform). + + The linker will be instructed to link against libraries in the + order they were supplied to 'add_library()' and/or + 'set_libraries()'. It is perfectly valid to duplicate library + names; the linker will be instructed to link against libraries as + many times as they are mentioned. + """ + self.libraries.append(libname) + + def set_libraries(self, libnames: list[str]) -> None: + """Set the list of libraries to be included in all links driven by + this compiler object to 'libnames' (a list of strings). This does + not affect any standard system libraries that the linker may + include by default. + """ + self.libraries = libnames[:] + + def add_library_dir(self, dir: str) -> None: + """Add 'dir' to the list of directories that will be searched for + libraries specified to 'add_library()' and 'set_libraries()'. The + linker will be instructed to search for libraries in the order they + are supplied to 'add_library_dir()' and/or 'set_library_dirs()'. + """ + self.library_dirs.append(dir) + + def set_library_dirs(self, dirs: list[str]) -> None: + """Set the list of library search directories to 'dirs' (a list of + strings). This does not affect any standard library search path + that the linker may search by default. + """ + self.library_dirs = dirs[:] + + def add_runtime_library_dir(self, dir: str) -> None: + """Add 'dir' to the list of directories that will be searched for + shared libraries at runtime. + """ + self.runtime_library_dirs.append(dir) + + def set_runtime_library_dirs(self, dirs: list[str]) -> None: + """Set the list of directories to search for shared libraries at + runtime to 'dirs' (a list of strings). This does not affect any + standard search path that the runtime linker may search by + default. + """ + self.runtime_library_dirs = dirs[:] + + def add_link_object(self, object: str) -> None: + """Add 'object' to the list of object files (or analogues, such as + explicitly named library files or the output of "resource + compilers") to be included in every link driven by this compiler + object. + """ + self.objects.append(object) + + def set_link_objects(self, objects: list[str]) -> None: + """Set the list of object files (or analogues) to be included in + every link to 'objects'. This does not affect any standard object + files that the linker may include by default (such as system + libraries). + """ + self.objects = objects[:] + + # -- Private utility methods -------------------------------------- + # (here for the convenience of subclasses) + + # Helper method to prep compiler in subclass compile() methods + + def _setup_compile( + self, + outdir: str | None, + macros: list[_Macro] | None, + incdirs: list[str] | tuple[str, ...] | None, + sources, + depends, + extra, + ): + """Process arguments and decide which source files to compile.""" + outdir, macros, incdirs = self._fix_compile_args(outdir, macros, incdirs) + + if extra is None: + extra = [] + + # Get the list of expected output (object) files + objects = self.object_filenames(sources, strip_dir=False, output_dir=outdir) + assert len(objects) == len(sources) + + pp_opts = gen_preprocess_options(macros, incdirs) + + build = {} + for i in range(len(sources)): + src = sources[i] + obj = objects[i] + ext = os.path.splitext(src)[1] + self.mkpath(os.path.dirname(obj)) + build[obj] = (src, ext) + + return macros, objects, extra, pp_opts, build + + def _get_cc_args(self, pp_opts, debug, before): + # works for unixccompiler, cygwinccompiler + cc_args = pp_opts + ['-c'] + if debug: + cc_args[:0] = ['-g'] + if before: + cc_args[:0] = before + return cc_args + + def _fix_compile_args( + self, + output_dir: str | None, + macros: list[_Macro] | None, + include_dirs: list[str] | tuple[str, ...] | None, + ) -> tuple[str, list[_Macro], list[str]]: + """Typecheck and fix-up some of the arguments to the 'compile()' + method, and return fixed-up values. Specifically: if 'output_dir' + is None, replaces it with 'self.output_dir'; ensures that 'macros' + is a list, and augments it with 'self.macros'; ensures that + 'include_dirs' is a list, and augments it with 'self.include_dirs'. + Guarantees that the returned values are of the correct type, + i.e. for 'output_dir' either string or None, and for 'macros' and + 'include_dirs' either list or None. + """ + if output_dir is None: + output_dir = self.output_dir + elif not isinstance(output_dir, str): + raise TypeError("'output_dir' must be a string or None") + + if macros is None: + macros = list(self.macros) + elif isinstance(macros, list): + macros = macros + (self.macros or []) + else: + raise TypeError("'macros' (if supplied) must be a list of tuples") + + if include_dirs is None: + include_dirs = list(self.include_dirs) + elif isinstance(include_dirs, (list, tuple)): + include_dirs = list(include_dirs) + (self.include_dirs or []) + else: + raise TypeError("'include_dirs' (if supplied) must be a list of strings") + + # add include dirs for class + include_dirs += self.__class__.include_dirs + + return output_dir, macros, include_dirs + + def _prep_compile(self, sources, output_dir, depends=None): + """Decide which source files must be recompiled. + + Determine the list of object files corresponding to 'sources', + and figure out which ones really need to be recompiled. + Return a list of all object files and a dictionary telling + which source files can be skipped. + """ + # Get the list of expected output (object) files + objects = self.object_filenames(sources, output_dir=output_dir) + assert len(objects) == len(sources) + + # Return an empty dict for the "which source files can be skipped" + # return value to preserve API compatibility. + return objects, {} + + def _fix_object_args( + self, objects: list[str] | tuple[str, ...], output_dir: str | None + ) -> tuple[list[str], str]: + """Typecheck and fix up some arguments supplied to various methods. + Specifically: ensure that 'objects' is a list; if output_dir is + None, replace with self.output_dir. Return fixed versions of + 'objects' and 'output_dir'. + """ + if not isinstance(objects, (list, tuple)): + raise TypeError("'objects' must be a list or tuple of strings") + objects = list(objects) + + if output_dir is None: + output_dir = self.output_dir + elif not isinstance(output_dir, str): + raise TypeError("'output_dir' must be a string or None") + + return (objects, output_dir) + + def _fix_lib_args( + self, + libraries: list[str] | tuple[str, ...] | None, + library_dirs: list[str] | tuple[str, ...] | None, + runtime_library_dirs: list[str] | tuple[str, ...] | None, + ) -> tuple[list[str], list[str], list[str]]: + """Typecheck and fix up some of the arguments supplied to the + 'link_*' methods. Specifically: ensure that all arguments are + lists, and augment them with their permanent versions + (eg. 'self.libraries' augments 'libraries'). Return a tuple with + fixed versions of all arguments. + """ + if libraries is None: + libraries = list(self.libraries) + elif isinstance(libraries, (list, tuple)): + libraries = list(libraries) + (self.libraries or []) + else: + raise TypeError("'libraries' (if supplied) must be a list of strings") + + if library_dirs is None: + library_dirs = list(self.library_dirs) + elif isinstance(library_dirs, (list, tuple)): + library_dirs = list(library_dirs) + (self.library_dirs or []) + else: + raise TypeError("'library_dirs' (if supplied) must be a list of strings") + + # add library dirs for class + library_dirs += self.__class__.library_dirs + + if runtime_library_dirs is None: + runtime_library_dirs = list(self.runtime_library_dirs) + elif isinstance(runtime_library_dirs, (list, tuple)): + runtime_library_dirs = list(runtime_library_dirs) + ( + self.runtime_library_dirs or [] + ) + else: + raise TypeError( + "'runtime_library_dirs' (if supplied) must be a list of strings" + ) + + return (libraries, library_dirs, runtime_library_dirs) + + def _need_link(self, objects, output_file): + """Return true if we need to relink the files listed in 'objects' + to recreate 'output_file'. + """ + if self.force: + return True + else: + if self.dry_run: + newer = newer_group(objects, output_file, missing='newer') + else: + newer = newer_group(objects, output_file) + return newer + + def detect_language(self, sources: str | list[str]) -> str | None: + """Detect the language of a given file, or list of files. Uses + language_map, and language_order to do the job. + """ + if not isinstance(sources, list): + sources = [sources] + lang = None + index = len(self.language_order) + for source in sources: + base, ext = os.path.splitext(source) + extlang = self.language_map.get(ext) + try: + extindex = self.language_order.index(extlang) + if extindex < index: + lang = extlang + index = extindex + except ValueError: + pass + return lang + + # -- Worker methods ------------------------------------------------ + # (must be implemented by subclasses) + + def preprocess( + self, + source: str | os.PathLike[str], + output_file: str | os.PathLike[str] | None = None, + macros: list[_Macro] | None = None, + include_dirs: list[str] | tuple[str, ...] | None = None, + extra_preargs: list[str] | None = None, + extra_postargs: Iterable[str] | None = None, + ): + """Preprocess a single C/C++ source file, named in 'source'. + Output will be written to file named 'output_file', or stdout if + 'output_file' not supplied. 'macros' is a list of macro + definitions as for 'compile()', which will augment the macros set + with 'define_macro()' and 'undefine_macro()'. 'include_dirs' is a + list of directory names that will be added to the default list. + + Raises PreprocessError on failure. + """ + pass + + def compile( + self, + sources: Sequence[str | os.PathLike[str]], + output_dir: str | None = None, + macros: list[_Macro] | None = None, + include_dirs: list[str] | tuple[str, ...] | None = None, + debug: bool = False, + extra_preargs: list[str] | None = None, + extra_postargs: list[str] | None = None, + depends: list[str] | tuple[str, ...] | None = None, + ) -> list[str]: + """Compile one or more source files. + + 'sources' must be a list of filenames, most likely C/C++ + files, but in reality anything that can be handled by a + particular compiler and compiler class (eg. MSVCCompiler can + handle resource files in 'sources'). Return a list of object + filenames, one per source filename in 'sources'. Depending on + the implementation, not all source files will necessarily be + compiled, but all corresponding object filenames will be + returned. + + If 'output_dir' is given, object files will be put under it, while + retaining their original path component. That is, "foo/bar.c" + normally compiles to "foo/bar.o" (for a Unix implementation); if + 'output_dir' is "build", then it would compile to + "build/foo/bar.o". + + 'macros', if given, must be a list of macro definitions. A macro + definition is either a (name, value) 2-tuple or a (name,) 1-tuple. + The former defines a macro; if the value is None, the macro is + defined without an explicit value. The 1-tuple case undefines a + macro. Later definitions/redefinitions/ undefinitions take + precedence. + + 'include_dirs', if given, must be a list of strings, the + directories to add to the default include file search path for this + compilation only. + + 'debug' is a boolean; if true, the compiler will be instructed to + output debug symbols in (or alongside) the object file(s). + + 'extra_preargs' and 'extra_postargs' are implementation- dependent. + On platforms that have the notion of a command-line (e.g. Unix, + DOS/Windows), they are most likely lists of strings: extra + command-line arguments to prepend/append to the compiler command + line. On other platforms, consult the implementation class + documentation. In any event, they are intended as an escape hatch + for those occasions when the abstract compiler framework doesn't + cut the mustard. + + 'depends', if given, is a list of filenames that all targets + depend on. If a source file is older than any file in + depends, then the source file will be recompiled. This + supports dependency tracking, but only at a coarse + granularity. + + Raises CompileError on failure. + """ + # A concrete compiler class can either override this method + # entirely or implement _compile(). + macros, objects, extra_postargs, pp_opts, build = self._setup_compile( + output_dir, macros, include_dirs, sources, depends, extra_postargs + ) + cc_args = self._get_cc_args(pp_opts, debug, extra_preargs) + + for obj in objects: + try: + src, ext = build[obj] + except KeyError: + continue + self._compile(obj, src, ext, cc_args, extra_postargs, pp_opts) + + # Return *all* object filenames, not just the ones we just built. + return objects + + def _compile(self, obj, src, ext, cc_args, extra_postargs, pp_opts): + """Compile 'src' to product 'obj'.""" + # A concrete compiler class that does not override compile() + # should implement _compile(). + pass + + def create_static_lib( + self, + objects: list[str] | tuple[str, ...], + output_libname: str, + output_dir: str | None = None, + debug: bool = False, + target_lang: str | None = None, + ) -> None: + """Link a bunch of stuff together to create a static library file. + The "bunch of stuff" consists of the list of object files supplied + as 'objects', the extra object files supplied to + 'add_link_object()' and/or 'set_link_objects()', the libraries + supplied to 'add_library()' and/or 'set_libraries()', and the + libraries supplied as 'libraries' (if any). + + 'output_libname' should be a library name, not a filename; the + filename will be inferred from the library name. 'output_dir' is + the directory where the library file will be put. + + 'debug' is a boolean; if true, debugging information will be + included in the library (note that on most platforms, it is the + compile step where this matters: the 'debug' flag is included here + just for consistency). + + 'target_lang' is the target language for which the given objects + are being compiled. This allows specific linkage time treatment of + certain languages. + + Raises LibError on failure. + """ + pass + + # values for target_desc parameter in link() + SHARED_OBJECT = "shared_object" + SHARED_LIBRARY = "shared_library" + EXECUTABLE = "executable" + + def link( + self, + target_desc: str, + objects: list[str] | tuple[str, ...], + output_filename: str, + output_dir: str | None = None, + libraries: list[str] | tuple[str, ...] | None = None, + library_dirs: list[str] | tuple[str, ...] | None = None, + runtime_library_dirs: list[str] | tuple[str, ...] | None = None, + export_symbols: Iterable[str] | None = None, + debug: bool = False, + extra_preargs: list[str] | None = None, + extra_postargs: list[str] | None = None, + build_temp: str | os.PathLike[str] | None = None, + target_lang: str | None = None, + ): + """Link a bunch of stuff together to create an executable or + shared library file. + + The "bunch of stuff" consists of the list of object files supplied + as 'objects'. 'output_filename' should be a filename. If + 'output_dir' is supplied, 'output_filename' is relative to it + (i.e. 'output_filename' can provide directory components if + needed). + + 'libraries' is a list of libraries to link against. These are + library names, not filenames, since they're translated into + filenames in a platform-specific way (eg. "foo" becomes "libfoo.a" + on Unix and "foo.lib" on DOS/Windows). However, they can include a + directory component, which means the linker will look in that + specific directory rather than searching all the normal locations. + + 'library_dirs', if supplied, should be a list of directories to + search for libraries that were specified as bare library names + (ie. no directory component). These are on top of the system + default and those supplied to 'add_library_dir()' and/or + 'set_library_dirs()'. 'runtime_library_dirs' is a list of + directories that will be embedded into the shared library and used + to search for other shared libraries that *it* depends on at + run-time. (This may only be relevant on Unix.) + + 'export_symbols' is a list of symbols that the shared library will + export. (This appears to be relevant only on Windows.) + + 'debug' is as for 'compile()' and 'create_static_lib()', with the + slight distinction that it actually matters on most platforms (as + opposed to 'create_static_lib()', which includes a 'debug' flag + mostly for form's sake). + + 'extra_preargs' and 'extra_postargs' are as for 'compile()' (except + of course that they supply command-line arguments for the + particular linker being used). + + 'target_lang' is the target language for which the given objects + are being compiled. This allows specific linkage time treatment of + certain languages. + + Raises LinkError on failure. + """ + raise NotImplementedError + + # Old 'link_*()' methods, rewritten to use the new 'link()' method. + + def link_shared_lib( + self, + objects: list[str] | tuple[str, ...], + output_libname: str, + output_dir: str | None = None, + libraries: list[str] | tuple[str, ...] | None = None, + library_dirs: list[str] | tuple[str, ...] | None = None, + runtime_library_dirs: list[str] | tuple[str, ...] | None = None, + export_symbols: Iterable[str] | None = None, + debug: bool = False, + extra_preargs: list[str] | None = None, + extra_postargs: list[str] | None = None, + build_temp: str | os.PathLike[str] | None = None, + target_lang: str | None = None, + ): + self.link( + Compiler.SHARED_LIBRARY, + objects, + self.library_filename(output_libname, lib_type='shared'), + output_dir, + libraries, + library_dirs, + runtime_library_dirs, + export_symbols, + debug, + extra_preargs, + extra_postargs, + build_temp, + target_lang, + ) + + def link_shared_object( + self, + objects: list[str] | tuple[str, ...], + output_filename: str, + output_dir: str | None = None, + libraries: list[str] | tuple[str, ...] | None = None, + library_dirs: list[str] | tuple[str, ...] | None = None, + runtime_library_dirs: list[str] | tuple[str, ...] | None = None, + export_symbols: Iterable[str] | None = None, + debug: bool = False, + extra_preargs: list[str] | None = None, + extra_postargs: list[str] | None = None, + build_temp: str | os.PathLike[str] | None = None, + target_lang: str | None = None, + ): + self.link( + Compiler.SHARED_OBJECT, + objects, + output_filename, + output_dir, + libraries, + library_dirs, + runtime_library_dirs, + export_symbols, + debug, + extra_preargs, + extra_postargs, + build_temp, + target_lang, + ) + + def link_executable( + self, + objects: list[str] | tuple[str, ...], + output_progname: str, + output_dir: str | None = None, + libraries: list[str] | tuple[str, ...] | None = None, + library_dirs: list[str] | tuple[str, ...] | None = None, + runtime_library_dirs: list[str] | tuple[str, ...] | None = None, + debug: bool = False, + extra_preargs: list[str] | None = None, + extra_postargs: list[str] | None = None, + target_lang: str | None = None, + ): + self.link( + Compiler.EXECUTABLE, + objects, + self.executable_filename(output_progname), + output_dir, + libraries, + library_dirs, + runtime_library_dirs, + None, + debug, + extra_preargs, + extra_postargs, + None, + target_lang, + ) + + # -- Miscellaneous methods ----------------------------------------- + # These are all used by the 'gen_lib_options() function; there is + # no appropriate default implementation so subclasses should + # implement all of these. + + def library_dir_option(self, dir: str) -> str: + """Return the compiler option to add 'dir' to the list of + directories searched for libraries. + """ + raise NotImplementedError + + def runtime_library_dir_option(self, dir: str) -> str: + """Return the compiler option to add 'dir' to the list of + directories searched for runtime libraries. + """ + raise NotImplementedError + + def library_option(self, lib: str) -> str: + """Return the compiler option to add 'lib' to the list of libraries + linked into the shared library or executable. + """ + raise NotImplementedError + + def has_function( # noqa: C901 + self, + funcname: str, + includes: Iterable[str] | None = None, + include_dirs: list[str] | tuple[str, ...] | None = None, + libraries: list[str] | None = None, + library_dirs: list[str] | tuple[str, ...] | None = None, + ) -> bool: + """Return a boolean indicating whether funcname is provided as + a symbol on the current platform. The optional arguments can + be used to augment the compilation environment. + + The libraries argument is a list of flags to be passed to the + linker to make additional symbol definitions available for + linking. + + The includes and include_dirs arguments are deprecated. + Usually, supplying include files with function declarations + will cause function detection to fail even in cases where the + symbol is available for linking. + + """ + # this can't be included at module scope because it tries to + # import math which might not be available at that point - maybe + # the necessary logic should just be inlined? + import tempfile + + if includes is None: + includes = [] + else: + warnings.warn("includes is deprecated", DeprecationWarning) + if include_dirs is None: + include_dirs = [] + else: + warnings.warn("include_dirs is deprecated", DeprecationWarning) + if libraries is None: + libraries = [] + if library_dirs is None: + library_dirs = [] + fd, fname = tempfile.mkstemp(".c", funcname, text=True) + with os.fdopen(fd, "w", encoding='utf-8') as f: + for incl in includes: + f.write(f"""#include "{incl}"\n""") + if not includes: + # Use "char func(void);" as the prototype to follow + # what autoconf does. This prototype does not match + # any well-known function the compiler might recognize + # as a builtin, so this ends up as a true link test. + # Without a fake prototype, the test would need to + # know the exact argument types, and the has_function + # interface does not provide that level of information. + f.write( + f"""\ +#ifdef __cplusplus +extern "C" +#endif +char {funcname}(void); +""" + ) + f.write( + f"""\ +int main (int argc, char **argv) {{ + {funcname}(); + return 0; +}} +""" + ) + + try: + objects = self.compile([fname], include_dirs=include_dirs) + except CompileError: + return False + finally: + os.remove(fname) + + try: + self.link_executable( + objects, "a.out", libraries=libraries, library_dirs=library_dirs + ) + except (LinkError, TypeError): + return False + else: + os.remove( + self.executable_filename("a.out", output_dir=self.output_dir or '') + ) + finally: + for fn in objects: + os.remove(fn) + return True + + def find_library_file( + self, dirs: Iterable[str], lib: str, debug: bool = False + ) -> str | None: + """Search the specified list of directories for a static or shared + library file 'lib' and return the full path to that file. If + 'debug' true, look for a debugging version (if that makes sense on + the current platform). Return None if 'lib' wasn't found in any of + the specified directories. + """ + raise NotImplementedError + + # -- Filename generation methods ----------------------------------- + + # The default implementation of the filename generating methods are + # prejudiced towards the Unix/DOS/Windows view of the world: + # * object files are named by replacing the source file extension + # (eg. .c/.cpp -> .o/.obj) + # * library files (shared or static) are named by plugging the + # library name and extension into a format string, eg. + # "lib%s.%s" % (lib_name, ".a") for Unix static libraries + # * executables are named by appending an extension (possibly + # empty) to the program name: eg. progname + ".exe" for + # Windows + # + # To reduce redundant code, these methods expect to find + # several attributes in the current object (presumably defined + # as class attributes): + # * src_extensions - + # list of C/C++ source file extensions, eg. ['.c', '.cpp'] + # * obj_extension - + # object file extension, eg. '.o' or '.obj' + # * static_lib_extension - + # extension for static library files, eg. '.a' or '.lib' + # * shared_lib_extension - + # extension for shared library/object files, eg. '.so', '.dll' + # * static_lib_format - + # format string for generating static library filenames, + # eg. 'lib%s.%s' or '%s.%s' + # * shared_lib_format + # format string for generating shared library filenames + # (probably same as static_lib_format, since the extension + # is one of the intended parameters to the format string) + # * exe_extension - + # extension for executable files, eg. '' or '.exe' + + def object_filenames( + self, + source_filenames: Iterable[str | os.PathLike[str]], + strip_dir: bool = False, + output_dir: str | os.PathLike[str] | None = '', + ) -> list[str]: + if output_dir is None: + output_dir = '' + return list( + self._make_out_path(output_dir, strip_dir, src_name) + for src_name in source_filenames + ) + + @property + def out_extensions(self): + return dict.fromkeys(self.src_extensions, self.obj_extension) + + def _make_out_path(self, output_dir, strip_dir, src_name): + return self._make_out_path_exts( + output_dir, strip_dir, src_name, self.out_extensions + ) + + @classmethod + def _make_out_path_exts(cls, output_dir, strip_dir, src_name, extensions): + r""" + >>> exts = {'.c': '.o'} + >>> Compiler._make_out_path_exts('.', False, '/foo/bar.c', exts).replace('\\', '/') + './foo/bar.o' + >>> Compiler._make_out_path_exts('.', True, '/foo/bar.c', exts).replace('\\', '/') + './bar.o' + """ + src = pathlib.PurePath(src_name) + # Ensure base is relative to honor output_dir (python/cpython#37775). + base = cls._make_relative(src) + try: + new_ext = extensions[src.suffix] + except LookupError: + raise UnknownFileType(f"unknown file type '{src.suffix}' (from '{src}')") + if strip_dir: + base = pathlib.PurePath(base.name) + return os.path.join(output_dir, base.with_suffix(new_ext)) + + @staticmethod + def _make_relative(base: pathlib.Path): + return base.relative_to(base.anchor) + + @overload + def shared_object_filename( + self, + basename: str, + strip_dir: Literal[False] = False, + output_dir: str | os.PathLike[str] = "", + ) -> str: ... + @overload + def shared_object_filename( + self, + basename: str | os.PathLike[str], + strip_dir: Literal[True], + output_dir: str | os.PathLike[str] = "", + ) -> str: ... + def shared_object_filename( + self, + basename: str | os.PathLike[str], + strip_dir: bool = False, + output_dir: str | os.PathLike[str] = '', + ) -> str: + assert output_dir is not None + if strip_dir: + basename = os.path.basename(basename) + return os.path.join(output_dir, basename + self.shared_lib_extension) + + @overload + def executable_filename( + self, + basename: str, + strip_dir: Literal[False] = False, + output_dir: str | os.PathLike[str] = "", + ) -> str: ... + @overload + def executable_filename( + self, + basename: str | os.PathLike[str], + strip_dir: Literal[True], + output_dir: str | os.PathLike[str] = "", + ) -> str: ... + def executable_filename( + self, + basename: str | os.PathLike[str], + strip_dir: bool = False, + output_dir: str | os.PathLike[str] = '', + ) -> str: + assert output_dir is not None + if strip_dir: + basename = os.path.basename(basename) + return os.path.join(output_dir, basename + (self.exe_extension or '')) + + def library_filename( + self, + libname: str, + lib_type: str = "static", + strip_dir: bool = False, + output_dir: str | os.PathLike[str] = "", # or 'shared' + ): + assert output_dir is not None + expected = '"static", "shared", "dylib", "xcode_stub"' + if lib_type not in eval(expected): + raise ValueError(f"'lib_type' must be {expected}") + fmt = getattr(self, lib_type + "_lib_format") + ext = getattr(self, lib_type + "_lib_extension") + + dir, base = os.path.split(libname) + filename = fmt % (base, ext) + if strip_dir: + dir = '' + + return os.path.join(output_dir, dir, filename) + + # -- Utility methods ----------------------------------------------- + + def announce(self, msg: object, level: int = 1) -> None: + log.debug(msg) + + def debug_print(self, msg: object) -> None: + from distutils.debug import DEBUG + + if DEBUG: + print(msg) + + def warn(self, msg: object) -> None: + sys.stderr.write(f"warning: {msg}\n") + + def execute( + self, + func: Callable[[Unpack[_Ts]], object], + args: tuple[Unpack[_Ts]], + msg: object = None, + level: int = 1, + ) -> None: + execute(func, args, msg, self.dry_run) + + def spawn( + self, cmd: MutableSequence[bytes | str | os.PathLike[str]], **kwargs + ) -> None: + spawn(cmd, dry_run=self.dry_run, **kwargs) + + @overload + def move_file( + self, src: str | os.PathLike[str], dst: _StrPathT + ) -> _StrPathT | str: ... + @overload + def move_file( + self, src: bytes | os.PathLike[bytes], dst: _BytesPathT + ) -> _BytesPathT | bytes: ... + def move_file( + self, + src: str | os.PathLike[str] | bytes | os.PathLike[bytes], + dst: str | os.PathLike[str] | bytes | os.PathLike[bytes], + ) -> str | os.PathLike[str] | bytes | os.PathLike[bytes]: + return move_file(src, dst, dry_run=self.dry_run) + + def mkpath(self, name, mode=0o777): + mkpath(name, mode, dry_run=self.dry_run) + + +# Map a sys.platform/os.name ('posix', 'nt') to the default compiler +# type for that platform. Keys are interpreted as re match +# patterns. Order is important; platform mappings are preferred over +# OS names. +_default_compilers = ( + # Platform string mappings + # on a cygwin built python we can use gcc like an ordinary UNIXish + # compiler + ('cygwin.*', 'unix'), + ('zos', 'zos'), + # OS name mappings + ('posix', 'unix'), + ('nt', 'msvc'), +) + + +def get_default_compiler(osname: str | None = None, platform: str | None = None) -> str: + """Determine the default compiler to use for the given platform. + + osname should be one of the standard Python OS names (i.e. the + ones returned by os.name) and platform the common value + returned by sys.platform for the platform in question. + + The default values are os.name and sys.platform in case the + parameters are not given. + """ + if osname is None: + osname = os.name + if platform is None: + platform = sys.platform + # Mingw is a special case where sys.platform is 'win32' but we + # want to use the 'mingw32' compiler, so check it first + if is_mingw(): + return 'mingw32' + for pattern, compiler in _default_compilers: + if ( + re.match(pattern, platform) is not None + or re.match(pattern, osname) is not None + ): + return compiler + # Default to Unix compiler + return 'unix' + + +# Map compiler types to (module_name, class_name) pairs -- ie. where to +# find the code that implements an interface to this compiler. (The module +# is assumed to be in the 'distutils' package.) +compiler_class = { + 'unix': ('unixccompiler', 'UnixCCompiler', "standard UNIX-style compiler"), + 'msvc': ('_msvccompiler', 'MSVCCompiler', "Microsoft Visual C++"), + 'cygwin': ( + 'cygwinccompiler', + 'CygwinCCompiler', + "Cygwin port of GNU C Compiler for Win32", + ), + 'mingw32': ( + 'cygwinccompiler', + 'Mingw32CCompiler', + "Mingw32 port of GNU C Compiler for Win32", + ), + 'bcpp': ('bcppcompiler', 'BCPPCompiler', "Borland C++ Compiler"), + 'zos': ('zosccompiler', 'zOSCCompiler', 'IBM XL C/C++ Compilers'), +} + + +def show_compilers() -> None: + """Print list of available compilers (used by the "--help-compiler" + options to "build", "build_ext", "build_clib"). + """ + # XXX this "knows" that the compiler option it's describing is + # "--compiler", which just happens to be the case for the three + # commands that use it. + from distutils.fancy_getopt import FancyGetopt + + compilers = sorted( + ("compiler=" + compiler, None, compiler_class[compiler][2]) + for compiler in compiler_class.keys() + ) + pretty_printer = FancyGetopt(compilers) + pretty_printer.print_help("List of available compilers:") + + +def new_compiler( + plat: str | None = None, + compiler: str | None = None, + verbose: bool = False, + dry_run: bool = False, + force: bool = False, +) -> Compiler: + """Generate an instance of some CCompiler subclass for the supplied + platform/compiler combination. 'plat' defaults to 'os.name' + (eg. 'posix', 'nt'), and 'compiler' defaults to the default compiler + for that platform. Currently only 'posix' and 'nt' are supported, and + the default compilers are "traditional Unix interface" (UnixCCompiler + class) and Visual C++ (MSVCCompiler class). Note that it's perfectly + possible to ask for a Unix compiler object under Windows, and a + Microsoft compiler object under Unix -- if you supply a value for + 'compiler', 'plat' is ignored. + """ + if plat is None: + plat = os.name + + try: + if compiler is None: + compiler = get_default_compiler(plat) + + (module_name, class_name, long_description) = compiler_class[compiler] + except KeyError: + msg = f"don't know how to compile C/C++ code on platform '{plat}'" + if compiler is not None: + msg = msg + f" with '{compiler}' compiler" + raise DistutilsPlatformError(msg) + + try: + module_name = "distutils." + module_name + __import__(module_name) + module = sys.modules[module_name] + klass = vars(module)[class_name] + except ImportError: + raise DistutilsModuleError( + f"can't compile C/C++ code: unable to load module '{module_name}'" + ) + except KeyError: + raise DistutilsModuleError( + f"can't compile C/C++ code: unable to find class '{class_name}' " + f"in module '{module_name}'" + ) + + # XXX The None is necessary to preserve backwards compatibility + # with classes that expect verbose to be the first positional + # argument. + return klass(None, dry_run, force) + + +def gen_preprocess_options( + macros: Iterable[_Macro], include_dirs: Iterable[str] +) -> list[str]: + """Generate C pre-processor options (-D, -U, -I) as used by at least + two types of compilers: the typical Unix compiler and Visual C++. + 'macros' is the usual thing, a list of 1- or 2-tuples, where (name,) + means undefine (-U) macro 'name', and (name,value) means define (-D) + macro 'name' to 'value'. 'include_dirs' is just a list of directory + names to be added to the header file search path (-I). Returns a list + of command-line options suitable for either Unix compilers or Visual + C++. + """ + # XXX it would be nice (mainly aesthetic, and so we don't generate + # stupid-looking command lines) to go over 'macros' and eliminate + # redundant definitions/undefinitions (ie. ensure that only the + # latest mention of a particular macro winds up on the command + # line). I don't think it's essential, though, since most (all?) + # Unix C compilers only pay attention to the latest -D or -U + # mention of a macro on their command line. Similar situation for + # 'include_dirs'. I'm punting on both for now. Anyways, weeding out + # redundancies like this should probably be the province of + # CCompiler, since the data structures used are inherited from it + # and therefore common to all CCompiler classes. + pp_opts = [] + for macro in macros: + if not (isinstance(macro, tuple) and 1 <= len(macro) <= 2): + raise TypeError( + f"bad macro definition '{macro}': " + "each element of 'macros' list must be a 1- or 2-tuple" + ) + + if len(macro) == 1: # undefine this macro + pp_opts.append(f"-U{macro[0]}") + elif len(macro) == 2: + if macro[1] is None: # define with no explicit value + pp_opts.append(f"-D{macro[0]}") + else: + # XXX *don't* need to be clever about quoting the + # macro value here, because we're going to avoid the + # shell at all costs when we spawn the command! + pp_opts.append("-D{}={}".format(*macro)) + + pp_opts.extend(f"-I{dir}" for dir in include_dirs) + return pp_opts + + +def gen_lib_options( + compiler: Compiler, + library_dirs: Iterable[str], + runtime_library_dirs: Iterable[str], + libraries: Iterable[str], +) -> list[str]: + """Generate linker options for searching library directories and + linking with specific libraries. 'libraries' and 'library_dirs' are, + respectively, lists of library names (not filenames!) and search + directories. Returns a list of command-line options suitable for use + with some compiler (depending on the two format strings passed in). + """ + lib_opts = [compiler.library_dir_option(dir) for dir in library_dirs] + + for dir in runtime_library_dirs: + lib_opts.extend(always_iterable(compiler.runtime_library_dir_option(dir))) + + # XXX it's important that we *not* remove redundant library mentions! + # sometimes you really do have to say "-lfoo -lbar -lfoo" in order to + # resolve all symbols. I just hope we never have to say "-lfoo obj.o + # -lbar" to get things to work -- that's certainly a possibility, but a + # pretty nasty way to arrange your C code. + + for lib in libraries: + (lib_dir, lib_name) = os.path.split(lib) + if lib_dir: + lib_file = compiler.find_library_file([lib_dir], lib_name) + if lib_file: + lib_opts.append(lib_file) + else: + compiler.warn( + f"no library file corresponding to '{lib}' found (skipping)" + ) + else: + lib_opts.append(compiler.library_option(lib)) + return lib_opts diff --git a/setuptools/_distutils/compilers/C/cygwin.py b/setuptools/_distutils/compilers/C/cygwin.py new file mode 100644 index 0000000000..bfabbb306e --- /dev/null +++ b/setuptools/_distutils/compilers/C/cygwin.py @@ -0,0 +1,340 @@ +"""distutils.cygwinccompiler + +Provides the CygwinCCompiler class, a subclass of UnixCCompiler that +handles the Cygwin port of the GNU C compiler to Windows. It also contains +the Mingw32CCompiler class which handles the mingw32 port of GCC (same as +cygwin in no-cygwin mode). +""" + +import copy +import os +import pathlib +import shlex +import sys +import warnings +from subprocess import check_output + +from ...errors import ( + DistutilsExecError, + DistutilsPlatformError, +) +from ...file_util import write_file +from ...sysconfig import get_config_vars +from ...version import LooseVersion, suppress_known_deprecation +from . import unix +from .errors import ( + CompileError, + Error, +) + + +def get_msvcr(): + """No longer needed, but kept for backward compatibility.""" + return [] + + +_runtime_library_dirs_msg = ( + "Unable to set runtime library search path on Windows, " + "usually indicated by `runtime_library_dirs` parameter to Extension" +) + + +class Compiler(unix.Compiler): + """Handles the Cygwin port of the GNU C compiler to Windows.""" + + compiler_type = 'cygwin' + obj_extension = ".o" + static_lib_extension = ".a" + shared_lib_extension = ".dll.a" + dylib_lib_extension = ".dll" + static_lib_format = "lib%s%s" + shared_lib_format = "lib%s%s" + dylib_lib_format = "cyg%s%s" + exe_extension = ".exe" + + def __init__(self, verbose=False, dry_run=False, force=False): + super().__init__(verbose, dry_run, force) + + status, details = check_config_h() + self.debug_print(f"Python's GCC status: {status} (details: {details})") + if status is not CONFIG_H_OK: + self.warn( + "Python's pyconfig.h doesn't seem to support your compiler. " + f"Reason: {details}. " + "Compiling may fail because of undefined preprocessor macros." + ) + + self.cc, self.cxx = get_config_vars('CC', 'CXX') + + # Override 'CC' and 'CXX' environment variables for + # building using MINGW compiler for MSVC python. + self.cc = os.environ.get('CC', self.cc or 'gcc') + self.cxx = os.environ.get('CXX', self.cxx or 'g++') + + self.linker_dll = self.cc + self.linker_dll_cxx = self.cxx + shared_option = "-shared" + + self.set_executables( + compiler=f'{self.cc} -mcygwin -O -Wall', + compiler_so=f'{self.cc} -mcygwin -mdll -O -Wall', + compiler_cxx=f'{self.cxx} -mcygwin -O -Wall', + compiler_so_cxx=f'{self.cxx} -mcygwin -mdll -O -Wall', + linker_exe=f'{self.cc} -mcygwin', + linker_so=f'{self.linker_dll} -mcygwin {shared_option}', + linker_exe_cxx=f'{self.cxx} -mcygwin', + linker_so_cxx=f'{self.linker_dll_cxx} -mcygwin {shared_option}', + ) + + self.dll_libraries = get_msvcr() + + @property + def gcc_version(self): + # Older numpy depended on this existing to check for ancient + # gcc versions. This doesn't make much sense with clang etc so + # just hardcode to something recent. + # https://github.com/numpy/numpy/pull/20333 + warnings.warn( + "gcc_version attribute of CygwinCCompiler is deprecated. " + "Instead of returning actual gcc version a fixed value 11.2.0 is returned.", + DeprecationWarning, + stacklevel=2, + ) + with suppress_known_deprecation(): + return LooseVersion("11.2.0") + + def _compile(self, obj, src, ext, cc_args, extra_postargs, pp_opts): + """Compiles the source by spawning GCC and windres if needed.""" + if ext in ('.rc', '.res'): + # gcc needs '.res' and '.rc' compiled to object files !!! + try: + self.spawn(["windres", "-i", src, "-o", obj]) + except DistutilsExecError as msg: + raise CompileError(msg) + else: # for other files use the C-compiler + try: + if self.detect_language(src) == 'c++': + self.spawn( + self.compiler_so_cxx + + cc_args + + [src, '-o', obj] + + extra_postargs + ) + else: + self.spawn( + self.compiler_so + cc_args + [src, '-o', obj] + extra_postargs + ) + except DistutilsExecError as msg: + raise CompileError(msg) + + def link( + self, + target_desc, + objects, + output_filename, + output_dir=None, + libraries=None, + library_dirs=None, + runtime_library_dirs=None, + export_symbols=None, + debug=False, + extra_preargs=None, + extra_postargs=None, + build_temp=None, + target_lang=None, + ): + """Link the objects.""" + # use separate copies, so we can modify the lists + extra_preargs = copy.copy(extra_preargs or []) + libraries = copy.copy(libraries or []) + objects = copy.copy(objects or []) + + if runtime_library_dirs: + self.warn(_runtime_library_dirs_msg) + + # Additional libraries + libraries.extend(self.dll_libraries) + + # handle export symbols by creating a def-file + # with executables this only works with gcc/ld as linker + if (export_symbols is not None) and ( + target_desc != self.EXECUTABLE or self.linker_dll == "gcc" + ): + # (The linker doesn't do anything if output is up-to-date. + # So it would probably better to check if we really need this, + # but for this we had to insert some unchanged parts of + # UnixCCompiler, and this is not what we want.) + + # we want to put some files in the same directory as the + # object files are, build_temp doesn't help much + # where are the object files + temp_dir = os.path.dirname(objects[0]) + # name of dll to give the helper files the same base name + (dll_name, dll_extension) = os.path.splitext( + os.path.basename(output_filename) + ) + + # generate the filenames for these files + def_file = os.path.join(temp_dir, dll_name + ".def") + + # Generate .def file + contents = [f"LIBRARY {os.path.basename(output_filename)}", "EXPORTS"] + contents.extend(export_symbols) + self.execute(write_file, (def_file, contents), f"writing {def_file}") + + # next add options for def-file + + # for gcc/ld the def-file is specified as any object files + objects.append(def_file) + + # end: if ((export_symbols is not None) and + # (target_desc != self.EXECUTABLE or self.linker_dll == "gcc")): + + # who wants symbols and a many times larger output file + # should explicitly switch the debug mode on + # otherwise we let ld strip the output file + # (On my machine: 10KiB < stripped_file < ??100KiB + # unstripped_file = stripped_file + XXX KiB + # ( XXX=254 for a typical python extension)) + if not debug: + extra_preargs.append("-s") + + super().link( + target_desc, + objects, + output_filename, + output_dir, + libraries, + library_dirs, + runtime_library_dirs, + None, # export_symbols, we do this in our def-file + debug, + extra_preargs, + extra_postargs, + build_temp, + target_lang, + ) + + def runtime_library_dir_option(self, dir): + # cygwin doesn't support rpath. While in theory we could error + # out like MSVC does, code might expect it to work like on Unix, so + # just warn and hope for the best. + self.warn(_runtime_library_dirs_msg) + return [] + + # -- Miscellaneous methods ----------------------------------------- + + def _make_out_path(self, output_dir, strip_dir, src_name): + # use normcase to make sure '.rc' is really '.rc' and not '.RC' + norm_src_name = os.path.normcase(src_name) + return super()._make_out_path(output_dir, strip_dir, norm_src_name) + + @property + def out_extensions(self): + """ + Add support for rc and res files. + """ + return { + **super().out_extensions, + **{ext: ext + self.obj_extension for ext in ('.res', '.rc')}, + } + + +# the same as cygwin plus some additional parameters +class MinGW32Compiler(Compiler): + """Handles the Mingw32 port of the GNU C compiler to Windows.""" + + compiler_type = 'mingw32' + + def __init__(self, verbose=False, dry_run=False, force=False): + super().__init__(verbose, dry_run, force) + + shared_option = "-shared" + + if is_cygwincc(self.cc): + raise Error('Cygwin gcc cannot be used with --compiler=mingw32') + + self.set_executables( + compiler=f'{self.cc} -O -Wall', + compiler_so=f'{self.cc} -shared -O -Wall', + compiler_so_cxx=f'{self.cxx} -shared -O -Wall', + compiler_cxx=f'{self.cxx} -O -Wall', + linker_exe=f'{self.cc}', + linker_so=f'{self.linker_dll} {shared_option}', + linker_exe_cxx=f'{self.cxx}', + linker_so_cxx=f'{self.linker_dll_cxx} {shared_option}', + ) + + def runtime_library_dir_option(self, dir): + raise DistutilsPlatformError(_runtime_library_dirs_msg) + + +# Because these compilers aren't configured in Python's pyconfig.h file by +# default, we should at least warn the user if he is using an unmodified +# version. + +CONFIG_H_OK = "ok" +CONFIG_H_NOTOK = "not ok" +CONFIG_H_UNCERTAIN = "uncertain" + + +def check_config_h(): + """Check if the current Python installation appears amenable to building + extensions with GCC. + + Returns a tuple (status, details), where 'status' is one of the following + constants: + + - CONFIG_H_OK: all is well, go ahead and compile + - CONFIG_H_NOTOK: doesn't look good + - CONFIG_H_UNCERTAIN: not sure -- unable to read pyconfig.h + + 'details' is a human-readable string explaining the situation. + + Note there are two ways to conclude "OK": either 'sys.version' contains + the string "GCC" (implying that this Python was built with GCC), or the + installed "pyconfig.h" contains the string "__GNUC__". + """ + + # XXX since this function also checks sys.version, it's not strictly a + # "pyconfig.h" check -- should probably be renamed... + + from distutils import sysconfig + + # if sys.version contains GCC then python was compiled with GCC, and the + # pyconfig.h file should be OK + if "GCC" in sys.version: + return CONFIG_H_OK, "sys.version mentions 'GCC'" + + # Clang would also work + if "Clang" in sys.version: + return CONFIG_H_OK, "sys.version mentions 'Clang'" + + # let's see if __GNUC__ is mentioned in python.h + fn = sysconfig.get_config_h_filename() + try: + config_h = pathlib.Path(fn).read_text(encoding='utf-8') + except OSError as exc: + return (CONFIG_H_UNCERTAIN, f"couldn't read '{fn}': {exc.strerror}") + else: + substring = '__GNUC__' + if substring in config_h: + code = CONFIG_H_OK + mention_inflected = 'mentions' + else: + code = CONFIG_H_NOTOK + mention_inflected = 'does not mention' + return code, f"{fn!r} {mention_inflected} {substring!r}" + + +def is_cygwincc(cc): + """Try to determine if the compiler that would be used is from cygwin.""" + out_string = check_output(shlex.split(cc) + ['-dumpmachine']) + return out_string.strip().endswith(b'cygwin') + + +get_versions = None +""" +A stand-in for the previous get_versions() function to prevent failures +when monkeypatched. See pypa/setuptools#2969. +""" diff --git a/setuptools/_distutils/compilers/C/errors.py b/setuptools/_distutils/compilers/C/errors.py new file mode 100644 index 0000000000..01328592b2 --- /dev/null +++ b/setuptools/_distutils/compilers/C/errors.py @@ -0,0 +1,24 @@ +class Error(Exception): + """Some compile/link operation failed.""" + + +class PreprocessError(Error): + """Failure to preprocess one or more C/C++ files.""" + + +class CompileError(Error): + """Failure to compile one or more C/C++ source files.""" + + +class LibError(Error): + """Failure to create a static library from one or more C/C++ object + files.""" + + +class LinkError(Error): + """Failure to link one or more C/C++ object files into an executable + or shared library file.""" + + +class UnknownFileType(Error): + """Attempt to process an unknown file type.""" diff --git a/setuptools/_distutils/compilers/C/msvc.py b/setuptools/_distutils/compilers/C/msvc.py new file mode 100644 index 0000000000..6db062a9e7 --- /dev/null +++ b/setuptools/_distutils/compilers/C/msvc.py @@ -0,0 +1,614 @@ +"""distutils._msvccompiler + +Contains MSVCCompiler, an implementation of the abstract CCompiler class +for Microsoft Visual Studio 2015. + +This module requires VS 2015 or later. +""" + +# Written by Perry Stoll +# hacked by Robin Becker and Thomas Heller to do a better job of +# finding DevStudio (through the registry) +# ported to VS 2005 and VS 2008 by Christian Heimes +# ported to VS 2015 by Steve Dower +from __future__ import annotations + +import contextlib +import os +import subprocess +import unittest.mock as mock +import warnings +from collections.abc import Iterable + +with contextlib.suppress(ImportError): + import winreg + +from itertools import count + +from ..._log import log +from ...errors import ( + DistutilsExecError, + DistutilsPlatformError, +) +from ...util import get_host_platform, get_platform +from . import base +from .base import gen_lib_options +from .errors import ( + CompileError, + LibError, + LinkError, +) + + +def _find_vc2015(): + try: + key = winreg.OpenKeyEx( + winreg.HKEY_LOCAL_MACHINE, + r"Software\Microsoft\VisualStudio\SxS\VC7", + access=winreg.KEY_READ | winreg.KEY_WOW64_32KEY, + ) + except OSError: + log.debug("Visual C++ is not registered") + return None, None + + best_version = 0 + best_dir = None + with key: + for i in count(): + try: + v, vc_dir, vt = winreg.EnumValue(key, i) + except OSError: + break + if v and vt == winreg.REG_SZ and os.path.isdir(vc_dir): + try: + version = int(float(v)) + except (ValueError, TypeError): + continue + if version >= 14 and version > best_version: + best_version, best_dir = version, vc_dir + return best_version, best_dir + + +def _find_vc2017(): + """Returns "15, path" based on the result of invoking vswhere.exe + If no install is found, returns "None, None" + + The version is returned to avoid unnecessarily changing the function + result. It may be ignored when the path is not None. + + If vswhere.exe is not available, by definition, VS 2017 is not + installed. + """ + root = os.environ.get("ProgramFiles(x86)") or os.environ.get("ProgramFiles") + if not root: + return None, None + + variant = 'arm64' if get_platform() == 'win-arm64' else 'x86.x64' + suitable_components = ( + f"Microsoft.VisualStudio.Component.VC.Tools.{variant}", + "Microsoft.VisualStudio.Workload.WDExpress", + ) + + for component in suitable_components: + # Workaround for `-requiresAny` (only available on VS 2017 > 15.6) + with contextlib.suppress( + subprocess.CalledProcessError, OSError, UnicodeDecodeError + ): + path = ( + subprocess.check_output([ + os.path.join( + root, "Microsoft Visual Studio", "Installer", "vswhere.exe" + ), + "-latest", + "-prerelease", + "-requires", + component, + "-property", + "installationPath", + "-products", + "*", + ]) + .decode(encoding="mbcs", errors="strict") + .strip() + ) + + path = os.path.join(path, "VC", "Auxiliary", "Build") + if os.path.isdir(path): + return 15, path + + return None, None # no suitable component found + + +PLAT_SPEC_TO_RUNTIME = { + 'x86': 'x86', + 'x86_amd64': 'x64', + 'x86_arm': 'arm', + 'x86_arm64': 'arm64', +} + + +def _find_vcvarsall(plat_spec): + # bpo-38597: Removed vcruntime return value + _, best_dir = _find_vc2017() + + if not best_dir: + best_version, best_dir = _find_vc2015() + + if not best_dir: + log.debug("No suitable Visual C++ version found") + return None, None + + vcvarsall = os.path.join(best_dir, "vcvarsall.bat") + if not os.path.isfile(vcvarsall): + log.debug("%s cannot be found", vcvarsall) + return None, None + + return vcvarsall, None + + +def _get_vc_env(plat_spec): + if os.getenv("DISTUTILS_USE_SDK"): + return {key.lower(): value for key, value in os.environ.items()} + + vcvarsall, _ = _find_vcvarsall(plat_spec) + if not vcvarsall: + raise DistutilsPlatformError( + 'Microsoft Visual C++ 14.0 or greater is required. ' + 'Get it with "Microsoft C++ Build Tools": ' + 'https://visualstudio.microsoft.com/visual-cpp-build-tools/' + ) + + try: + out = subprocess.check_output( + f'cmd /u /c "{vcvarsall}" {plat_spec} && set', + stderr=subprocess.STDOUT, + ).decode('utf-16le', errors='replace') + except subprocess.CalledProcessError as exc: + log.error(exc.output) + raise DistutilsPlatformError(f"Error executing {exc.cmd}") + + env = { + key.lower(): value + for key, _, value in (line.partition('=') for line in out.splitlines()) + if key and value + } + + return env + + +def _find_exe(exe, paths=None): + """Return path to an MSVC executable program. + + Tries to find the program in several places: first, one of the + MSVC program search paths from the registry; next, the directories + in the PATH environment variable. If any of those work, return an + absolute path that is known to exist. If none of them work, just + return the original program name, 'exe'. + """ + if not paths: + paths = os.getenv('path').split(os.pathsep) + for p in paths: + fn = os.path.join(os.path.abspath(p), exe) + if os.path.isfile(fn): + return fn + return exe + + +_vcvars_names = { + 'win32': 'x86', + 'win-amd64': 'amd64', + 'win-arm32': 'arm', + 'win-arm64': 'arm64', +} + + +def _get_vcvars_spec(host_platform, platform): + """ + Given a host platform and platform, determine the spec for vcvarsall. + + Uses the native MSVC host if the host platform would need expensive + emulation for x86. + + >>> _get_vcvars_spec('win-arm64', 'win32') + 'arm64_x86' + >>> _get_vcvars_spec('win-arm64', 'win-amd64') + 'arm64_amd64' + + Otherwise, always cross-compile from x86 to work with the + lighter-weight MSVC installs that do not include native 64-bit tools. + + >>> _get_vcvars_spec('win32', 'win32') + 'x86' + >>> _get_vcvars_spec('win-arm32', 'win-arm32') + 'x86_arm' + >>> _get_vcvars_spec('win-amd64', 'win-arm64') + 'x86_arm64' + """ + if host_platform != 'win-arm64': + host_platform = 'win32' + vc_hp = _vcvars_names[host_platform] + vc_plat = _vcvars_names[platform] + return vc_hp if vc_hp == vc_plat else f'{vc_hp}_{vc_plat}' + + +class Compiler(base.Compiler): + """Concrete class that implements an interface to Microsoft Visual C++, + as defined by the CCompiler abstract class.""" + + compiler_type = 'msvc' + + # Just set this so CCompiler's constructor doesn't barf. We currently + # don't use the 'set_executables()' bureaucracy provided by CCompiler, + # as it really isn't necessary for this sort of single-compiler class. + # Would be nice to have a consistent interface with UnixCCompiler, + # though, so it's worth thinking about. + executables = {} + + # Private class data (need to distinguish C from C++ source for compiler) + _c_extensions = ['.c'] + _cpp_extensions = ['.cc', '.cpp', '.cxx'] + _rc_extensions = ['.rc'] + _mc_extensions = ['.mc'] + + # Needed for the filename generation methods provided by the + # base class, CCompiler. + src_extensions = _c_extensions + _cpp_extensions + _rc_extensions + _mc_extensions + res_extension = '.res' + obj_extension = '.obj' + static_lib_extension = '.lib' + shared_lib_extension = '.dll' + static_lib_format = shared_lib_format = '%s%s' + exe_extension = '.exe' + + def __init__(self, verbose=False, dry_run=False, force=False) -> None: + super().__init__(verbose, dry_run, force) + # target platform (.plat_name is consistent with 'bdist') + self.plat_name = None + self.initialized = False + + @classmethod + def _configure(cls, vc_env): + """ + Set class-level include/lib dirs. + """ + cls.include_dirs = cls._parse_path(vc_env.get('include', '')) + cls.library_dirs = cls._parse_path(vc_env.get('lib', '')) + + @staticmethod + def _parse_path(val): + return [dir.rstrip(os.sep) for dir in val.split(os.pathsep) if dir] + + def initialize(self, plat_name: str | None = None) -> None: + # multi-init means we would need to check platform same each time... + assert not self.initialized, "don't init multiple times" + if plat_name is None: + plat_name = get_platform() + # sanity check for platforms to prevent obscure errors later. + if plat_name not in _vcvars_names: + raise DistutilsPlatformError( + f"--plat-name must be one of {tuple(_vcvars_names)}" + ) + + plat_spec = _get_vcvars_spec(get_host_platform(), plat_name) + + vc_env = _get_vc_env(plat_spec) + if not vc_env: + raise DistutilsPlatformError( + "Unable to find a compatible Visual Studio installation." + ) + self._configure(vc_env) + + self._paths = vc_env.get('path', '') + paths = self._paths.split(os.pathsep) + self.cc = _find_exe("cl.exe", paths) + self.linker = _find_exe("link.exe", paths) + self.lib = _find_exe("lib.exe", paths) + self.rc = _find_exe("rc.exe", paths) # resource compiler + self.mc = _find_exe("mc.exe", paths) # message compiler + self.mt = _find_exe("mt.exe", paths) # message compiler + + self.preprocess_options = None + # bpo-38597: Always compile with dynamic linking + # Future releases of Python 3.x will include all past + # versions of vcruntime*.dll for compatibility. + self.compile_options = ['/nologo', '/O2', '/W3', '/GL', '/DNDEBUG', '/MD'] + + self.compile_options_debug = [ + '/nologo', + '/Od', + '/MDd', + '/Zi', + '/W3', + '/D_DEBUG', + ] + + ldflags = ['/nologo', '/INCREMENTAL:NO', '/LTCG'] + + ldflags_debug = ['/nologo', '/INCREMENTAL:NO', '/LTCG', '/DEBUG:FULL'] + + self.ldflags_exe = [*ldflags, '/MANIFEST:EMBED,ID=1'] + self.ldflags_exe_debug = [*ldflags_debug, '/MANIFEST:EMBED,ID=1'] + self.ldflags_shared = [ + *ldflags, + '/DLL', + '/MANIFEST:EMBED,ID=2', + '/MANIFESTUAC:NO', + ] + self.ldflags_shared_debug = [ + *ldflags_debug, + '/DLL', + '/MANIFEST:EMBED,ID=2', + '/MANIFESTUAC:NO', + ] + self.ldflags_static = [*ldflags] + self.ldflags_static_debug = [*ldflags_debug] + + self._ldflags = { + (base.Compiler.EXECUTABLE, None): self.ldflags_exe, + (base.Compiler.EXECUTABLE, False): self.ldflags_exe, + (base.Compiler.EXECUTABLE, True): self.ldflags_exe_debug, + (base.Compiler.SHARED_OBJECT, None): self.ldflags_shared, + (base.Compiler.SHARED_OBJECT, False): self.ldflags_shared, + (base.Compiler.SHARED_OBJECT, True): self.ldflags_shared_debug, + (base.Compiler.SHARED_LIBRARY, None): self.ldflags_static, + (base.Compiler.SHARED_LIBRARY, False): self.ldflags_static, + (base.Compiler.SHARED_LIBRARY, True): self.ldflags_static_debug, + } + + self.initialized = True + + # -- Worker methods ------------------------------------------------ + + @property + def out_extensions(self) -> dict[str, str]: + return { + **super().out_extensions, + **{ + ext: self.res_extension + for ext in self._rc_extensions + self._mc_extensions + }, + } + + def compile( # noqa: C901 + self, + sources, + output_dir=None, + macros=None, + include_dirs=None, + debug=False, + extra_preargs=None, + extra_postargs=None, + depends=None, + ): + if not self.initialized: + self.initialize() + compile_info = self._setup_compile( + output_dir, macros, include_dirs, sources, depends, extra_postargs + ) + macros, objects, extra_postargs, pp_opts, build = compile_info + + compile_opts = extra_preargs or [] + compile_opts.append('/c') + if debug: + compile_opts.extend(self.compile_options_debug) + else: + compile_opts.extend(self.compile_options) + + add_cpp_opts = False + + for obj in objects: + try: + src, ext = build[obj] + except KeyError: + continue + if debug: + # pass the full pathname to MSVC in debug mode, + # this allows the debugger to find the source file + # without asking the user to browse for it + src = os.path.abspath(src) + + if ext in self._c_extensions: + input_opt = f"/Tc{src}" + elif ext in self._cpp_extensions: + input_opt = f"/Tp{src}" + add_cpp_opts = True + elif ext in self._rc_extensions: + # compile .RC to .RES file + input_opt = src + output_opt = "/fo" + obj + try: + self.spawn([self.rc] + pp_opts + [output_opt, input_opt]) + except DistutilsExecError as msg: + raise CompileError(msg) + continue + elif ext in self._mc_extensions: + # Compile .MC to .RC file to .RES file. + # * '-h dir' specifies the directory for the + # generated include file + # * '-r dir' specifies the target directory of the + # generated RC file and the binary message resource + # it includes + # + # For now (since there are no options to change this), + # we use the source-directory for the include file and + # the build directory for the RC file and message + # resources. This works at least for win32all. + h_dir = os.path.dirname(src) + rc_dir = os.path.dirname(obj) + try: + # first compile .MC to .RC and .H file + self.spawn([self.mc, '-h', h_dir, '-r', rc_dir, src]) + base, _ = os.path.splitext(os.path.basename(src)) + rc_file = os.path.join(rc_dir, base + '.rc') + # then compile .RC to .RES file + self.spawn([self.rc, "/fo" + obj, rc_file]) + + except DistutilsExecError as msg: + raise CompileError(msg) + continue + else: + # how to handle this file? + raise CompileError(f"Don't know how to compile {src} to {obj}") + + args = [self.cc] + compile_opts + pp_opts + if add_cpp_opts: + args.append('/EHsc') + args.extend((input_opt, "/Fo" + obj)) + args.extend(extra_postargs) + + try: + self.spawn(args) + except DistutilsExecError as msg: + raise CompileError(msg) + + return objects + + def create_static_lib( + self, + objects: list[str] | tuple[str, ...], + output_libname: str, + output_dir: str | None = None, + debug: bool = False, + target_lang: str | None = None, + ) -> None: + if not self.initialized: + self.initialize() + objects, output_dir = self._fix_object_args(objects, output_dir) + output_filename = self.library_filename(output_libname, output_dir=output_dir) + + if self._need_link(objects, output_filename): + lib_args = objects + ['/OUT:' + output_filename] + if debug: + pass # XXX what goes here? + try: + log.debug('Executing "%s" %s', self.lib, ' '.join(lib_args)) + self.spawn([self.lib] + lib_args) + except DistutilsExecError as msg: + raise LibError(msg) + else: + log.debug("skipping %s (up-to-date)", output_filename) + + def link( + self, + target_desc: str, + objects: list[str] | tuple[str, ...], + output_filename: str, + output_dir: str | None = None, + libraries: list[str] | tuple[str, ...] | None = None, + library_dirs: list[str] | tuple[str, ...] | None = None, + runtime_library_dirs: list[str] | tuple[str, ...] | None = None, + export_symbols: Iterable[str] | None = None, + debug: bool = False, + extra_preargs: list[str] | None = None, + extra_postargs: Iterable[str] | None = None, + build_temp: str | os.PathLike[str] | None = None, + target_lang: str | None = None, + ) -> None: + if not self.initialized: + self.initialize() + objects, output_dir = self._fix_object_args(objects, output_dir) + fixed_args = self._fix_lib_args(libraries, library_dirs, runtime_library_dirs) + libraries, library_dirs, runtime_library_dirs = fixed_args + + if runtime_library_dirs: + self.warn( + "I don't know what to do with 'runtime_library_dirs': " + + str(runtime_library_dirs) + ) + + lib_opts = gen_lib_options(self, library_dirs, runtime_library_dirs, libraries) + if output_dir is not None: + output_filename = os.path.join(output_dir, output_filename) + + if self._need_link(objects, output_filename): + ldflags = self._ldflags[target_desc, debug] + + export_opts = ["/EXPORT:" + sym for sym in (export_symbols or [])] + + ld_args = ( + ldflags + lib_opts + export_opts + objects + ['/OUT:' + output_filename] + ) + + # The MSVC linker generates .lib and .exp files, which cannot be + # suppressed by any linker switches. The .lib files may even be + # needed! Make sure they are generated in the temporary build + # directory. Since they have different names for debug and release + # builds, they can go into the same directory. + build_temp = os.path.dirname(objects[0]) + if export_symbols is not None: + (dll_name, dll_ext) = os.path.splitext( + os.path.basename(output_filename) + ) + implib_file = os.path.join(build_temp, self.library_filename(dll_name)) + ld_args.append('/IMPLIB:' + implib_file) + + if extra_preargs: + ld_args[:0] = extra_preargs + if extra_postargs: + ld_args.extend(extra_postargs) + + output_dir = os.path.dirname(os.path.abspath(output_filename)) + self.mkpath(output_dir) + try: + log.debug('Executing "%s" %s', self.linker, ' '.join(ld_args)) + self.spawn([self.linker] + ld_args) + except DistutilsExecError as msg: + raise LinkError(msg) + else: + log.debug("skipping %s (up-to-date)", output_filename) + + def spawn(self, cmd): + env = dict(os.environ, PATH=self._paths) + with self._fallback_spawn(cmd, env) as fallback: + return super().spawn(cmd, env=env) + return fallback.value + + @contextlib.contextmanager + def _fallback_spawn(self, cmd, env): + """ + Discovered in pypa/distutils#15, some tools monkeypatch the compiler, + so the 'env' kwarg causes a TypeError. Detect this condition and + restore the legacy, unsafe behavior. + """ + bag = type('Bag', (), {})() + try: + yield bag + except TypeError as exc: + if "unexpected keyword argument 'env'" not in str(exc): + raise + else: + return + warnings.warn("Fallback spawn triggered. Please update distutils monkeypatch.") + with mock.patch.dict('os.environ', env): + bag.value = super().spawn(cmd) + + # -- Miscellaneous methods ----------------------------------------- + # These are all used by the 'gen_lib_options() function, in + # ccompiler.py. + + def library_dir_option(self, dir): + return "/LIBPATH:" + dir + + def runtime_library_dir_option(self, dir): + raise DistutilsPlatformError( + "don't know how to set runtime library search path for MSVC" + ) + + def library_option(self, lib): + return self.library_filename(lib) + + def find_library_file(self, dirs, lib, debug=False): + # Prefer a debugging library if found (and requested), but deal + # with it if we don't have one. + if debug: + try_names = [lib + "_d", lib] + else: + try_names = [lib] + for dir in dirs: + for name in try_names: + libfile = os.path.join(dir, self.library_filename(name)) + if os.path.isfile(libfile): + return libfile + else: + # Oops, didn't find it in *any* of 'dirs' + return None diff --git a/setuptools/_distutils/compilers/C/tests/test_base.py b/setuptools/_distutils/compilers/C/tests/test_base.py new file mode 100644 index 0000000000..a762e2b649 --- /dev/null +++ b/setuptools/_distutils/compilers/C/tests/test_base.py @@ -0,0 +1,83 @@ +import platform +import sysconfig +import textwrap + +import pytest + +from .. import base + +pytestmark = pytest.mark.usefixtures('suppress_path_mangle') + + +@pytest.fixture +def c_file(tmp_path): + c_file = tmp_path / 'foo.c' + gen_headers = ('Python.h',) + is_windows = platform.system() == "Windows" + plat_headers = ('windows.h',) * is_windows + all_headers = gen_headers + plat_headers + headers = '\n'.join(f'#include <{header}>\n' for header in all_headers) + payload = ( + textwrap.dedent( + """ + #headers + void PyInit_foo(void) {} + """ + ) + .lstrip() + .replace('#headers', headers) + ) + c_file.write_text(payload, encoding='utf-8') + return c_file + + +def test_set_include_dirs(c_file): + """ + Extensions should build even if set_include_dirs is invoked. + In particular, compiler-specific paths should not be overridden. + """ + compiler = base.new_compiler() + python = sysconfig.get_paths()['include'] + compiler.set_include_dirs([python]) + compiler.compile([c_file]) + + # do it again, setting include dirs after any initialization + compiler.set_include_dirs([python]) + compiler.compile([c_file]) + + +def test_has_function_prototype(): + # Issue https://github.com/pypa/setuptools/issues/3648 + # Test prototype-generating behavior. + + compiler = base.new_compiler() + + # Every C implementation should have these. + assert compiler.has_function('abort') + assert compiler.has_function('exit') + with pytest.deprecated_call(match='includes is deprecated'): + # abort() is a valid expression with the prototype. + assert compiler.has_function('abort', includes=['stdlib.h']) + with pytest.deprecated_call(match='includes is deprecated'): + # But exit() is not valid with the actual prototype in scope. + assert not compiler.has_function('exit', includes=['stdlib.h']) + # And setuptools_does_not_exist is not declared or defined at all. + assert not compiler.has_function('setuptools_does_not_exist') + with pytest.deprecated_call(match='includes is deprecated'): + assert not compiler.has_function( + 'setuptools_does_not_exist', includes=['stdio.h'] + ) + + +def test_include_dirs_after_multiple_compile_calls(c_file): + """ + Calling compile multiple times should not change the include dirs + (regression test for setuptools issue #3591). + """ + compiler = base.new_compiler() + python = sysconfig.get_paths()['include'] + compiler.set_include_dirs([python]) + compiler.compile([c_file]) + assert compiler.include_dirs == [python] + compiler.compile([c_file]) + assert compiler.include_dirs == [python] diff --git a/setuptools/_distutils/compilers/C/tests/test_cygwin.py b/setuptools/_distutils/compilers/C/tests/test_cygwin.py new file mode 100644 index 0000000000..9adf6b8ebf --- /dev/null +++ b/setuptools/_distutils/compilers/C/tests/test_cygwin.py @@ -0,0 +1,76 @@ +"""Tests for distutils.cygwinccompiler.""" + +import os +import sys +from distutils import sysconfig +from distutils.tests import support + +import pytest + +from .. import cygwin + + +@pytest.fixture(autouse=True) +def stuff(request, monkeypatch, distutils_managed_tempdir): + self = request.instance + self.python_h = os.path.join(self.mkdtemp(), 'python.h') + monkeypatch.setattr(sysconfig, 'get_config_h_filename', self._get_config_h_filename) + monkeypatch.setattr(sys, 'version', sys.version) + + +class TestCygwinCCompiler(support.TempdirManager): + def _get_config_h_filename(self): + return self.python_h + + @pytest.mark.skipif('sys.platform != "cygwin"') + @pytest.mark.skipif('not os.path.exists("/usr/lib/libbash.dll.a")') + def test_find_library_file(self): + from distutils.cygwinccompiler import CygwinCCompiler + + compiler = CygwinCCompiler() + link_name = "bash" + linkable_file = compiler.find_library_file(["/usr/lib"], link_name) + assert linkable_file is not None + assert os.path.exists(linkable_file) + assert linkable_file == f"/usr/lib/lib{link_name:s}.dll.a" + + @pytest.mark.skipif('sys.platform != "cygwin"') + def test_runtime_library_dir_option(self): + from distutils.cygwinccompiler import CygwinCCompiler + + compiler = CygwinCCompiler() + assert compiler.runtime_library_dir_option('/foo') == [] + + def test_check_config_h(self): + # check_config_h looks for "GCC" in sys.version first + # returns CONFIG_H_OK if found + sys.version = ( + '2.6.1 (r261:67515, Dec 6 2008, 16:42:21) \n[GCC ' + '4.0.1 (Apple Computer, Inc. build 5370)]' + ) + + assert cygwin.check_config_h()[0] == cygwin.CONFIG_H_OK + + # then it tries to see if it can find "__GNUC__" in pyconfig.h + sys.version = 'something without the *CC word' + + # if the file doesn't exist it returns CONFIG_H_UNCERTAIN + assert cygwin.check_config_h()[0] == cygwin.CONFIG_H_UNCERTAIN + + # if it exists but does not contain __GNUC__, it returns CONFIG_H_NOTOK + self.write_file(self.python_h, 'xxx') + assert cygwin.check_config_h()[0] == cygwin.CONFIG_H_NOTOK + + # and CONFIG_H_OK if __GNUC__ is found + self.write_file(self.python_h, 'xxx __GNUC__ xxx') + assert cygwin.check_config_h()[0] == cygwin.CONFIG_H_OK + + def test_get_msvcr(self): + assert cygwin.get_msvcr() == [] + + @pytest.mark.skipif('sys.platform != "cygwin"') + def test_dll_libraries_not_none(self): + from distutils.cygwinccompiler import CygwinCCompiler + + compiler = CygwinCCompiler() + assert compiler.dll_libraries is not None diff --git a/setuptools/_distutils/compilers/C/tests/test_mingw.py b/setuptools/_distutils/compilers/C/tests/test_mingw.py new file mode 100644 index 0000000000..dc45687a91 --- /dev/null +++ b/setuptools/_distutils/compilers/C/tests/test_mingw.py @@ -0,0 +1,48 @@ +from distutils import sysconfig +from distutils.errors import DistutilsPlatformError +from distutils.util import is_mingw, split_quoted + +import pytest + +from .. import cygwin, errors + + +class TestMinGW32Compiler: + @pytest.mark.skipif(not is_mingw(), reason='not on mingw') + def test_compiler_type(self): + compiler = cygwin.MinGW32Compiler() + assert compiler.compiler_type == 'mingw32' + + @pytest.mark.skipif(not is_mingw(), reason='not on mingw') + def test_set_executables(self, monkeypatch): + monkeypatch.setenv('CC', 'cc') + monkeypatch.setenv('CXX', 'c++') + + compiler = cygwin.MinGW32Compiler() + + assert compiler.compiler == split_quoted('cc -O -Wall') + assert compiler.compiler_so == split_quoted('cc -shared -O -Wall') + assert compiler.compiler_cxx == split_quoted('c++ -O -Wall') + assert compiler.linker_exe == split_quoted('cc') + assert compiler.linker_so == split_quoted('cc -shared') + + @pytest.mark.skipif(not is_mingw(), reason='not on mingw') + def test_runtime_library_dir_option(self): + compiler = cygwin.MinGW32Compiler() + with pytest.raises(DistutilsPlatformError): + compiler.runtime_library_dir_option('/usr/lib') + + @pytest.mark.skipif(not is_mingw(), reason='not on mingw') + def test_cygwincc_error(self, monkeypatch): + monkeypatch.setattr(cygwin, 'is_cygwincc', lambda _: True) + + with pytest.raises(errors.Error): + cygwin.MinGW32Compiler() + + @pytest.mark.skipif('sys.platform == "cygwin"') + def test_customize_compiler_with_msvc_python(self): + # In case we have an MSVC Python build, but still want to use + # MinGW32Compiler, then customize_compiler() shouldn't fail at least. + # https://github.com/pypa/setuptools/issues/4456 + compiler = cygwin.MinGW32Compiler() + sysconfig.customize_compiler(compiler) diff --git a/setuptools/_distutils/compilers/C/tests/test_msvc.py b/setuptools/_distutils/compilers/C/tests/test_msvc.py new file mode 100644 index 0000000000..eca831996a --- /dev/null +++ b/setuptools/_distutils/compilers/C/tests/test_msvc.py @@ -0,0 +1,136 @@ +import os +import sys +import sysconfig +import threading +import unittest.mock as mock +from distutils.errors import DistutilsPlatformError +from distutils.tests import support +from distutils.util import get_platform + +import pytest + +from .. import msvc + +needs_winreg = pytest.mark.skipif('not hasattr(msvc, "winreg")') + + +class Testmsvccompiler(support.TempdirManager): + def test_no_compiler(self, monkeypatch): + # makes sure query_vcvarsall raises + # a DistutilsPlatformError if the compiler + # is not found + def _find_vcvarsall(plat_spec): + return None, None + + monkeypatch.setattr(msvc, '_find_vcvarsall', _find_vcvarsall) + + with pytest.raises(DistutilsPlatformError): + msvc._get_vc_env( + 'wont find this version', + ) + + @pytest.mark.skipif( + not sysconfig.get_platform().startswith("win"), + reason="Only run test for non-mingw Windows platforms", + ) + @pytest.mark.parametrize( + "plat_name, expected", + [ + ("win-arm64", "win-arm64"), + ("win-amd64", "win-amd64"), + (None, get_platform()), + ], + ) + def test_cross_platform_compilation_paths(self, monkeypatch, plat_name, expected): + """ + Ensure a specified target platform is passed to _get_vcvars_spec. + """ + compiler = msvc.Compiler() + + def _get_vcvars_spec(host_platform, platform): + assert platform == expected + + monkeypatch.setattr(msvc, '_get_vcvars_spec', _get_vcvars_spec) + compiler.initialize(plat_name) + + @needs_winreg + def test_get_vc_env_unicode(self): + test_var = 'ṰḖṤṪ┅ṼẨṜ' + test_value = '₃⁴₅' + + # Ensure we don't early exit from _get_vc_env + old_distutils_use_sdk = os.environ.pop('DISTUTILS_USE_SDK', None) + os.environ[test_var] = test_value + try: + env = msvc._get_vc_env('x86') + assert test_var.lower() in env + assert test_value == env[test_var.lower()] + finally: + os.environ.pop(test_var) + if old_distutils_use_sdk: + os.environ['DISTUTILS_USE_SDK'] = old_distutils_use_sdk + + @needs_winreg + @pytest.mark.parametrize('ver', (2015, 2017)) + def test_get_vc(self, ver): + # This function cannot be mocked, so pass if VC is found + # and skip otherwise. + lookup = getattr(msvc, f'_find_vc{ver}') + expected_version = {2015: 14, 2017: 15}[ver] + version, path = lookup() + if not version: + pytest.skip(f"VS {ver} is not installed") + assert version >= expected_version + assert os.path.isdir(path) + + +class CheckThread(threading.Thread): + exc_info = None + + def run(self): + try: + super().run() + except Exception: + self.exc_info = sys.exc_info() + + def __bool__(self): + return not self.exc_info + + +class TestSpawn: + def test_concurrent_safe(self): + """ + Concurrent calls to spawn should have consistent results. + """ + compiler = msvc.Compiler() + compiler._paths = "expected" + inner_cmd = 'import os; assert os.environ["PATH"] == "expected"' + command = [sys.executable, '-c', inner_cmd] + + threads = [ + CheckThread(target=compiler.spawn, args=[command]) for n in range(100) + ] + for thread in threads: + thread.start() + for thread in threads: + thread.join() + assert all(threads) + + def test_concurrent_safe_fallback(self): + """ + If CCompiler.spawn has been monkey-patched without support + for an env, it should still execute. + """ + from distutils import ccompiler + + compiler = msvc.Compiler() + compiler._paths = "expected" + + def CCompiler_spawn(self, cmd): + "A spawn without an env argument." + assert os.environ["PATH"] == "expected" + + with mock.patch.object(ccompiler.CCompiler, 'spawn', CCompiler_spawn): + compiler.spawn(["n/a"]) + + assert os.environ.get("PATH") != "expected" diff --git a/setuptools/_distutils/compilers/C/tests/test_unix.py b/setuptools/_distutils/compilers/C/tests/test_unix.py new file mode 100644 index 0000000000..35b6b0e050 --- /dev/null +++ b/setuptools/_distutils/compilers/C/tests/test_unix.py @@ -0,0 +1,413 @@ +"""Tests for distutils.unixccompiler.""" + +import os +import sys +import unittest.mock as mock +from distutils import sysconfig +from distutils.compat import consolidate_linker_args +from distutils.errors import DistutilsPlatformError +from distutils.tests import support +from distutils.tests.compat.py39 import EnvironmentVarGuard +from distutils.util import _clear_cached_macosx_ver + +import pytest + +from .. import unix + + +@pytest.fixture(autouse=True) +def save_values(monkeypatch): + monkeypatch.setattr(sys, 'platform', sys.platform) + monkeypatch.setattr(sysconfig, 'get_config_var', sysconfig.get_config_var) + monkeypatch.setattr(sysconfig, 'get_config_vars', sysconfig.get_config_vars) + + +@pytest.fixture(autouse=True) +def compiler_wrapper(request): + class CompilerWrapper(unix.Compiler): + def rpath_foo(self): + return self.runtime_library_dir_option('/foo') + + request.instance.cc = CompilerWrapper() + + +class TestUnixCCompiler(support.TempdirManager): + @pytest.mark.skipif('platform.system == "Windows"') + def test_runtime_libdir_option(self): # noqa: C901 + # Issue #5900; GitHub Issue #37 + # + # Ensure RUNPATH is added to extension modules with RPATH if + # GNU ld is used + + # darwin + sys.platform = 'darwin' + darwin_ver_var = 'MACOSX_DEPLOYMENT_TARGET' + darwin_rpath_flag = '-Wl,-rpath,/foo' + darwin_lib_flag = '-L/foo' + + # (macOS version from syscfg, macOS version from env var) -> flag + # Version value of None generates two tests: as None and as empty string + # Expected flag value of None means an mismatch exception is expected + darwin_test_cases = [ + ((None, None), darwin_lib_flag), + ((None, '11'), darwin_rpath_flag), + (('10', None), darwin_lib_flag), + (('10.3', None), darwin_lib_flag), + (('10.3.1', None), darwin_lib_flag), + (('10.5', None), darwin_rpath_flag), + (('10.5.1', None), darwin_rpath_flag), + (('10.3', '10.3'), darwin_lib_flag), + (('10.3', '10.5'), darwin_rpath_flag), + (('10.5', '10.3'), darwin_lib_flag), + (('10.5', '11'), darwin_rpath_flag), + (('10.4', '10'), None), + ] + + def make_darwin_gcv(syscfg_macosx_ver): + def gcv(var): + if var == darwin_ver_var: + return syscfg_macosx_ver + return "xxx" + + return gcv + + def do_darwin_test(syscfg_macosx_ver, env_macosx_ver, expected_flag): + env = os.environ + msg = f"macOS version = (sysconfig={syscfg_macosx_ver!r}, env={env_macosx_ver!r})" + + # Save + old_gcv = sysconfig.get_config_var + old_env_macosx_ver = env.get(darwin_ver_var) + + # Setup environment + _clear_cached_macosx_ver() + sysconfig.get_config_var = make_darwin_gcv(syscfg_macosx_ver) + if env_macosx_ver is not None: + env[darwin_ver_var] = env_macosx_ver + elif darwin_ver_var in env: + env.pop(darwin_ver_var) + + # Run the test + if expected_flag is not None: + assert self.cc.rpath_foo() == expected_flag, msg + else: + with pytest.raises( + DistutilsPlatformError, match=darwin_ver_var + r' mismatch' + ): + self.cc.rpath_foo() + + # Restore + if old_env_macosx_ver is not None: + env[darwin_ver_var] = old_env_macosx_ver + elif darwin_ver_var in env: + env.pop(darwin_ver_var) + sysconfig.get_config_var = old_gcv + _clear_cached_macosx_ver() + + for macosx_vers, expected_flag in darwin_test_cases: + syscfg_macosx_ver, env_macosx_ver = macosx_vers + do_darwin_test(syscfg_macosx_ver, env_macosx_ver, expected_flag) + # Bonus test cases with None interpreted as empty string + if syscfg_macosx_ver is None: + do_darwin_test("", env_macosx_ver, expected_flag) + if env_macosx_ver is None: + do_darwin_test(syscfg_macosx_ver, "", expected_flag) + if syscfg_macosx_ver is None and env_macosx_ver is None: + do_darwin_test("", "", expected_flag) + + old_gcv = sysconfig.get_config_var + + # hp-ux + sys.platform = 'hp-ux' + + def gcv(v): + return 'xxx' + + sysconfig.get_config_var = gcv + assert self.cc.rpath_foo() == ['+s', '-L/foo'] + + def gcv(v): + return 'gcc' + + sysconfig.get_config_var = gcv + assert self.cc.rpath_foo() == ['-Wl,+s', '-L/foo'] + + def gcv(v): + return 'g++' + + sysconfig.get_config_var = gcv + assert self.cc.rpath_foo() == ['-Wl,+s', '-L/foo'] + + sysconfig.get_config_var = old_gcv + + # GCC GNULD + sys.platform = 'bar' + + def gcv(v): + if v == 'CC': + return 'gcc' + elif v == 'GNULD': + return 'yes' + + sysconfig.get_config_var = gcv + assert self.cc.rpath_foo() == consolidate_linker_args([ + '-Wl,--enable-new-dtags', + '-Wl,-rpath,/foo', + ]) + + def gcv(v): + if v == 'CC': + return 'gcc -pthread -B /bar' + elif v == 'GNULD': + return 'yes' + + sysconfig.get_config_var = gcv + assert self.cc.rpath_foo() == consolidate_linker_args([ + '-Wl,--enable-new-dtags', + '-Wl,-rpath,/foo', + ]) + + # GCC non-GNULD + sys.platform = 'bar' + + def gcv(v): + if v == 'CC': + return 'gcc' + elif v == 'GNULD': + return 'no' + + sysconfig.get_config_var = gcv + assert self.cc.rpath_foo() == '-Wl,-R/foo' + + # GCC GNULD with fully qualified configuration prefix + # see #7617 + sys.platform = 'bar' + + def gcv(v): + if v == 'CC': + return 'x86_64-pc-linux-gnu-gcc-4.4.2' + elif v == 'GNULD': + return 'yes' + + sysconfig.get_config_var = gcv + assert self.cc.rpath_foo() == consolidate_linker_args([ + '-Wl,--enable-new-dtags', + '-Wl,-rpath,/foo', + ]) + + # non-GCC GNULD + sys.platform = 'bar' + + def gcv(v): + if v == 'CC': + return 'cc' + elif v == 'GNULD': + return 'yes' + + sysconfig.get_config_var = gcv + assert self.cc.rpath_foo() == consolidate_linker_args([ + '-Wl,--enable-new-dtags', + '-Wl,-rpath,/foo', + ]) + + # non-GCC non-GNULD + sys.platform = 'bar' + + def gcv(v): + if v == 'CC': + return 'cc' + elif v == 'GNULD': + return 'no' + + sysconfig.get_config_var = gcv + assert self.cc.rpath_foo() == '-Wl,-R/foo' + + @pytest.mark.skipif('platform.system == "Windows"') + def test_cc_overrides_ldshared(self): + # Issue #18080: + # ensure that setting CC env variable also changes default linker + def gcv(v): + if v == 'LDSHARED': + return 'gcc-4.2 -bundle -undefined dynamic_lookup ' + return 'gcc-4.2' + + def gcvs(*args, _orig=sysconfig.get_config_vars): + if args: + return list(map(sysconfig.get_config_var, args)) + return _orig() + + sysconfig.get_config_var = gcv + sysconfig.get_config_vars = gcvs + with EnvironmentVarGuard() as env: + env['CC'] = 'my_cc' + del env['LDSHARED'] + sysconfig.customize_compiler(self.cc) + assert self.cc.linker_so[0] == 'my_cc' + + @pytest.mark.skipif('platform.system == "Windows"') + def test_cxx_commands_used_are_correct(self): + def gcv(v): + if v == 'LDSHARED': + return 'ccache gcc-4.2 -bundle -undefined dynamic_lookup' + elif v == 'LDCXXSHARED': + return 'ccache g++-4.2 -bundle -undefined dynamic_lookup' + elif v == 'CXX': + return 'ccache g++-4.2' + elif v == 'CC': + return 'ccache gcc-4.2' + return '' + + def gcvs(*args, _orig=sysconfig.get_config_vars): + if args: + return list(map(sysconfig.get_config_var, args)) + return _orig() # pragma: no cover + + sysconfig.get_config_var = gcv + sysconfig.get_config_vars = gcvs + with ( + mock.patch.object(self.cc, 'spawn', return_value=None) as mock_spawn, + mock.patch.object(self.cc, '_need_link', return_value=True), + mock.patch.object(self.cc, 'mkpath', return_value=None), + EnvironmentVarGuard() as env, + ): + # override environment overrides in case they're specified by CI + del env['CXX'] + del env['LDCXXSHARED'] + + sysconfig.customize_compiler(self.cc) + assert self.cc.linker_so_cxx[0:2] == ['ccache', 'g++-4.2'] + assert self.cc.linker_exe_cxx[0:2] == ['ccache', 'g++-4.2'] + self.cc.link(None, [], 'a.out', target_lang='c++') + call_args = mock_spawn.call_args[0][0] + expected = ['ccache', 'g++-4.2', '-bundle', '-undefined', 'dynamic_lookup'] + assert call_args[:5] == expected + + self.cc.link_executable([], 'a.out', target_lang='c++') + call_args = mock_spawn.call_args[0][0] + expected = ['ccache', 'g++-4.2', '-o', self.cc.executable_filename('a.out')] + assert call_args[:4] == expected + + env['LDCXXSHARED'] = 'wrapper g++-4.2 -bundle -undefined dynamic_lookup' + env['CXX'] = 'wrapper g++-4.2' + sysconfig.customize_compiler(self.cc) + assert self.cc.linker_so_cxx[0:2] == ['wrapper', 'g++-4.2'] + assert self.cc.linker_exe_cxx[0:2] == ['wrapper', 'g++-4.2'] + self.cc.link(None, [], 'a.out', target_lang='c++') + call_args = mock_spawn.call_args[0][0] + expected = ['wrapper', 'g++-4.2', '-bundle', '-undefined', 'dynamic_lookup'] + assert call_args[:5] == expected + + self.cc.link_executable([], 'a.out', target_lang='c++') + call_args = mock_spawn.call_args[0][0] + expected = [ + 'wrapper', + 'g++-4.2', + '-o', + self.cc.executable_filename('a.out'), + ] + assert call_args[:4] == expected + + @pytest.mark.skipif('platform.system == "Windows"') + @pytest.mark.usefixtures('disable_macos_customization') + def test_cc_overrides_ldshared_for_cxx_correctly(self): + """ + Ensure that setting CC env variable also changes default linker + correctly when building C++ extensions. + + pypa/distutils#126 + """ + + def gcv(v): + if v == 'LDSHARED': + return 'gcc-4.2 -bundle -undefined dynamic_lookup ' + elif v == 'LDCXXSHARED': + return 'g++-4.2 -bundle -undefined dynamic_lookup ' + elif v == 'CXX': + return 'g++-4.2' + elif v == 'CC': + return 'gcc-4.2' + return '' + + def gcvs(*args, _orig=sysconfig.get_config_vars): + if args: + return list(map(sysconfig.get_config_var, args)) + return _orig() + + sysconfig.get_config_var = gcv + sysconfig.get_config_vars = gcvs + with ( + mock.patch.object(self.cc, 'spawn', return_value=None) as mock_spawn, + mock.patch.object(self.cc, '_need_link', return_value=True), + mock.patch.object(self.cc, 'mkpath', return_value=None), + EnvironmentVarGuard() as env, + ): + env['CC'] = 'ccache my_cc' + env['CXX'] = 'my_cxx' + del env['LDSHARED'] + sysconfig.customize_compiler(self.cc) + assert self.cc.linker_so[0:2] == ['ccache', 'my_cc'] + self.cc.link(None, [], 'a.out', target_lang='c++') + call_args = mock_spawn.call_args[0][0] + expected = ['my_cxx', '-bundle', '-undefined', 'dynamic_lookup'] + assert call_args[:4] == expected + + @pytest.mark.skipif('platform.system == "Windows"') + def test_explicit_ldshared(self): + # Issue #18080: + # ensure that setting CC env variable does not change + # explicit LDSHARED setting for linker + def gcv(v): + if v == 'LDSHARED': + return 'gcc-4.2 -bundle -undefined dynamic_lookup ' + return 'gcc-4.2' + + def gcvs(*args, _orig=sysconfig.get_config_vars): + if args: + return list(map(sysconfig.get_config_var, args)) + return _orig() + + sysconfig.get_config_var = gcv + sysconfig.get_config_vars = gcvs + with EnvironmentVarGuard() as env: + env['CC'] = 'my_cc' + env['LDSHARED'] = 'my_ld -bundle -dynamic' + sysconfig.customize_compiler(self.cc) + assert self.cc.linker_so[0] == 'my_ld' + + def test_has_function(self): + # Issue https://github.com/pypa/distutils/issues/64: + # ensure that setting output_dir does not raise + # FileNotFoundError: [Errno 2] No such file or directory: 'a.out' + self.cc.output_dir = 'scratch' + os.chdir(self.mkdtemp()) + self.cc.has_function('abort') + + def test_find_library_file(self, monkeypatch): + compiler = unix.Compiler() + compiler._library_root = lambda dir: dir + monkeypatch.setattr(os.path, 'exists', lambda d: 'existing' in d) + + libname = 'libabc.dylib' if sys.platform != 'cygwin' else 'cygabc.dll' + dirs = ('/foo/bar/missing', '/foo/bar/existing') + assert ( + compiler.find_library_file(dirs, 'abc').replace('\\', '/') + == f'/foo/bar/existing/{libname}' + ) + assert ( + compiler.find_library_file(reversed(dirs), 'abc').replace('\\', '/') + == f'/foo/bar/existing/{libname}' + ) + + monkeypatch.setattr( + os.path, + 'exists', + lambda d: 'existing' in d and '.a' in d and '.dll.a' not in d, + ) + assert ( + compiler.find_library_file(dirs, 'abc').replace('\\', '/') + == '/foo/bar/existing/libabc.a' + ) + assert ( + compiler.find_library_file(reversed(dirs), 'abc').replace('\\', '/') + == '/foo/bar/existing/libabc.a' + ) diff --git a/setuptools/_distutils/compilers/C/unix.py b/setuptools/_distutils/compilers/C/unix.py new file mode 100644 index 0000000000..1231b32d20 --- /dev/null +++ b/setuptools/_distutils/compilers/C/unix.py @@ -0,0 +1,422 @@ +"""distutils.unixccompiler + +Contains the UnixCCompiler class, a subclass of CCompiler that handles +the "typical" Unix-style command-line C compiler: + * macros defined with -Dname[=value] + * macros undefined with -Uname + * include search directories specified with -Idir + * libraries specified with -lllib + * library search directories specified with -Ldir + * compile handled by 'cc' (or similar) executable with -c option: + compiles .c to .o + * link static library handled by 'ar' command (possibly with 'ranlib') + * link shared library handled by 'cc -shared' +""" + +from __future__ import annotations + +import itertools +import os +import re +import shlex +import sys +from collections.abc import Iterable + +from ... import sysconfig +from ..._log import log +from ..._macos_compat import compiler_fixup +from ..._modified import newer +from ...compat import consolidate_linker_args +from ...errors import DistutilsExecError +from . import base +from .base import _Macro, gen_lib_options, gen_preprocess_options +from .errors import ( + CompileError, + LibError, + LinkError, +) + +# XXX Things not currently handled: +# * optimization/debug/warning flags; we just use whatever's in Python's +# Makefile and live with it. Is this adequate? If not, we might +# have to have a bunch of subclasses GNUCCompiler, SGICCompiler, +# SunCCompiler, and I suspect down that road lies madness. +# * even if we don't know a warning flag from an optimization flag, +# we need some way for outsiders to feed preprocessor/compiler/linker +# flags in to us -- eg. a sysadmin might want to mandate certain flags +# via a site config file, or a user might want to set something for +# compiling this module distribution only via the setup.py command +# line, whatever. As long as these options come from something on the +# current system, they can be as system-dependent as they like, and we +# should just happily stuff them into the preprocessor/compiler/linker +# options and carry on. + + +def _split_env(cmd): + """ + For macOS, split command into 'env' portion (if any) + and the rest of the linker command. + + >>> _split_env(['a', 'b', 'c']) + ([], ['a', 'b', 'c']) + >>> _split_env(['/usr/bin/env', 'A=3', 'gcc']) + (['/usr/bin/env', 'A=3'], ['gcc']) + """ + pivot = 0 + if os.path.basename(cmd[0]) == "env": + pivot = 1 + while '=' in cmd[pivot]: + pivot += 1 + return cmd[:pivot], cmd[pivot:] + + +def _split_aix(cmd): + """ + AIX platforms prefix the compiler with the ld_so_aix + script, so split that from the linker command. + + >>> _split_aix(['a', 'b', 'c']) + ([], ['a', 'b', 'c']) + >>> _split_aix(['/bin/foo/ld_so_aix', 'gcc']) + (['/bin/foo/ld_so_aix'], ['gcc']) + """ + pivot = os.path.basename(cmd[0]) == 'ld_so_aix' + return cmd[:pivot], cmd[pivot:] + + +def _linker_params(linker_cmd, compiler_cmd): + """ + The linker command usually begins with the compiler + command (possibly multiple elements), followed by zero or more + params for shared library building. + + If the LDSHARED env variable overrides the linker command, + however, the commands may not match. + + Return the best guess of the linker parameters by stripping + the linker command. If the compiler command does not + match the linker command, assume the linker command is + just the first element. + + >>> _linker_params('gcc foo bar'.split(), ['gcc']) + ['foo', 'bar'] + >>> _linker_params('gcc foo bar'.split(), ['other']) + ['foo', 'bar'] + >>> _linker_params('ccache gcc foo bar'.split(), 'ccache gcc'.split()) + ['foo', 'bar'] + >>> _linker_params(['gcc'], ['gcc']) + [] + """ + c_len = len(compiler_cmd) + pivot = c_len if linker_cmd[:c_len] == compiler_cmd else 1 + return linker_cmd[pivot:] + + +class Compiler(base.Compiler): + compiler_type = 'unix' + + # These are used by CCompiler in two places: the constructor sets + # instance attributes 'preprocessor', 'compiler', etc. from them, and + # 'set_executable()' allows any of these to be set. The defaults here + # are pretty generic; they will probably have to be set by an outsider + # (eg. using information discovered by the sysconfig about building + # Python extensions). + executables = { + 'preprocessor': None, + 'compiler': ["cc"], + 'compiler_so': ["cc"], + 'compiler_cxx': ["c++"], + 'compiler_so_cxx': ["c++"], + 'linker_so': ["cc", "-shared"], + 'linker_so_cxx': ["c++", "-shared"], + 'linker_exe': ["cc"], + 'linker_exe_cxx': ["c++", "-shared"], + 'archiver': ["ar", "-cr"], + 'ranlib': None, + } + + if sys.platform[:6] == "darwin": + executables['ranlib'] = ["ranlib"] + + # Needed for the filename generation methods provided by the base + # class, CCompiler. NB. whoever instantiates/uses a particular + # UnixCCompiler instance should set 'shared_lib_ext' -- we set a + # reasonable common default here, but it's not necessarily used on all + # Unices! + + src_extensions = [".c", ".C", ".cc", ".cxx", ".cpp", ".m"] + obj_extension = ".o" + static_lib_extension = ".a" + shared_lib_extension = ".so" + dylib_lib_extension = ".dylib" + xcode_stub_lib_extension = ".tbd" + static_lib_format = shared_lib_format = dylib_lib_format = "lib%s%s" + xcode_stub_lib_format = dylib_lib_format + if sys.platform == "cygwin": + exe_extension = ".exe" + shared_lib_extension = ".dll.a" + dylib_lib_extension = ".dll" + dylib_lib_format = "cyg%s%s" + + def _fix_lib_args(self, libraries, library_dirs, runtime_library_dirs): + """Remove standard library path from rpath""" + libraries, library_dirs, runtime_library_dirs = super()._fix_lib_args( + libraries, library_dirs, runtime_library_dirs + ) + libdir = sysconfig.get_config_var('LIBDIR') + if ( + runtime_library_dirs + and libdir.startswith("/usr/lib") + and (libdir in runtime_library_dirs) + ): + runtime_library_dirs.remove(libdir) + return libraries, library_dirs, runtime_library_dirs + + def preprocess( + self, + source: str | os.PathLike[str], + output_file: str | os.PathLike[str] | None = None, + macros: list[_Macro] | None = None, + include_dirs: list[str] | tuple[str, ...] | None = None, + extra_preargs: list[str] | None = None, + extra_postargs: Iterable[str] | None = None, + ): + fixed_args = self._fix_compile_args(None, macros, include_dirs) + ignore, macros, include_dirs = fixed_args + pp_opts = gen_preprocess_options(macros, include_dirs) + pp_args = self.preprocessor + pp_opts + if output_file: + pp_args.extend(['-o', output_file]) + if extra_preargs: + pp_args[:0] = extra_preargs + if extra_postargs: + pp_args.extend(extra_postargs) + pp_args.append(source) + + # reasons to preprocess: + # - force is indicated + # - output is directed to stdout + # - source file is newer than the target + preprocess = self.force or output_file is None or newer(source, output_file) + if not preprocess: + return + + if output_file: + self.mkpath(os.path.dirname(output_file)) + + try: + self.spawn(pp_args) + except DistutilsExecError as msg: + raise CompileError(msg) + + def _compile(self, obj, src, ext, cc_args, extra_postargs, pp_opts): + compiler_so = compiler_fixup(self.compiler_so, cc_args + extra_postargs) + compiler_so_cxx = compiler_fixup(self.compiler_so_cxx, cc_args + extra_postargs) + try: + if self.detect_language(src) == 'c++': + self.spawn( + compiler_so_cxx + cc_args + [src, '-o', obj] + extra_postargs + ) + else: + self.spawn(compiler_so + cc_args + [src, '-o', obj] + extra_postargs) + except DistutilsExecError as msg: + raise CompileError(msg) + + def create_static_lib( + self, objects, output_libname, output_dir=None, debug=False, target_lang=None + ): + objects, output_dir = self._fix_object_args(objects, output_dir) + + output_filename = self.library_filename(output_libname, output_dir=output_dir) + + if self._need_link(objects, output_filename): + self.mkpath(os.path.dirname(output_filename)) + self.spawn(self.archiver + [output_filename] + objects + self.objects) + + # Not many Unices required ranlib anymore -- SunOS 4.x is, I + # think the only major Unix that does. Maybe we need some + # platform intelligence here to skip ranlib if it's not + # needed -- or maybe Python's configure script took care of + # it for us, hence the check for leading colon. + if self.ranlib: + try: + self.spawn(self.ranlib + [output_filename]) + except DistutilsExecError as msg: + raise LibError(msg) + else: + log.debug("skipping %s (up-to-date)", output_filename) + + def link( + self, + target_desc, + objects: list[str] | tuple[str, ...], + output_filename, + output_dir: str | None = None, + libraries: list[str] | tuple[str, ...] | None = None, + library_dirs: list[str] | tuple[str, ...] | None = None, + runtime_library_dirs: list[str] | tuple[str, ...] | None = None, + export_symbols=None, + debug=False, + extra_preargs=None, + extra_postargs=None, + build_temp=None, + target_lang=None, + ): + objects, output_dir = self._fix_object_args(objects, output_dir) + fixed_args = self._fix_lib_args(libraries, library_dirs, runtime_library_dirs) + libraries, library_dirs, runtime_library_dirs = fixed_args + + lib_opts = gen_lib_options(self, library_dirs, runtime_library_dirs, libraries) + if not isinstance(output_dir, (str, type(None))): + raise TypeError("'output_dir' must be a string or None") + if output_dir is not None: + output_filename = os.path.join(output_dir, output_filename) + + if self._need_link(objects, output_filename): + ld_args = objects + self.objects + lib_opts + ['-o', output_filename] + if debug: + ld_args[:0] = ['-g'] + if extra_preargs: + ld_args[:0] = extra_preargs + if extra_postargs: + ld_args.extend(extra_postargs) + self.mkpath(os.path.dirname(output_filename)) + try: + # Select a linker based on context: linker_exe when + # building an executable or linker_so (with shared options) + # when building a shared library. + building_exe = target_desc == base.Compiler.EXECUTABLE + target_cxx = target_lang == "c++" + linker = ( + (self.linker_exe_cxx if target_cxx else self.linker_exe) + if building_exe + else (self.linker_so_cxx if target_cxx else self.linker_so) + )[:] + + if target_cxx and self.compiler_cxx: + env, linker_ne = _split_env(linker) + aix, linker_na = _split_aix(linker_ne) + _, compiler_cxx_ne = _split_env(self.compiler_cxx) + _, linker_exe_ne = _split_env(self.linker_exe_cxx) + + params = _linker_params(linker_na, linker_exe_ne) + linker = env + aix + compiler_cxx_ne + params + + linker = compiler_fixup(linker, ld_args) + + self.spawn(linker + ld_args) + except DistutilsExecError as msg: + raise LinkError(msg) + else: + log.debug("skipping %s (up-to-date)", output_filename) + + # -- Miscellaneous methods ----------------------------------------- + # These are all used by the 'gen_lib_options() function, in + # ccompiler.py. + + def library_dir_option(self, dir): + return "-L" + dir + + def _is_gcc(self): + cc_var = sysconfig.get_config_var("CC") + compiler = os.path.basename(shlex.split(cc_var)[0]) + return "gcc" in compiler or "g++" in compiler + + def runtime_library_dir_option(self, dir: str) -> str | list[str]: # type: ignore[override] # Fixed in pypa/distutils#339 + # XXX Hackish, at the very least. See Python bug #445902: + # https://bugs.python.org/issue445902 + # Linkers on different platforms need different options to + # specify that directories need to be added to the list of + # directories searched for dependencies when a dynamic library + # is sought. GCC on GNU systems (Linux, FreeBSD, ...) has to + # be told to pass the -R option through to the linker, whereas + # other compilers and gcc on other systems just know this. + # Other compilers may need something slightly different. At + # this time, there's no way to determine this information from + # the configuration data stored in the Python installation, so + # we use this hack. + if sys.platform[:6] == "darwin": + from distutils.util import get_macosx_target_ver, split_version + + macosx_target_ver = get_macosx_target_ver() + if macosx_target_ver and split_version(macosx_target_ver) >= [10, 5]: + return "-Wl,-rpath," + dir + else: # no support for -rpath on earlier macOS versions + return "-L" + dir + elif sys.platform[:7] == "freebsd": + return "-Wl,-rpath=" + dir + elif sys.platform[:5] == "hp-ux": + return [ + "-Wl,+s" if self._is_gcc() else "+s", + "-L" + dir, + ] + + # For all compilers, `-Wl` is the presumed way to pass a + # compiler option to the linker + if sysconfig.get_config_var("GNULD") == "yes": + return consolidate_linker_args([ + # Force RUNPATH instead of RPATH + "-Wl,--enable-new-dtags", + "-Wl,-rpath," + dir, + ]) + else: + return "-Wl,-R" + dir + + def library_option(self, lib): + return "-l" + lib + + @staticmethod + def _library_root(dir): + """ + macOS users can specify an alternate SDK using'-isysroot'. + Calculate the SDK root if it is specified. + + Note that, as of Xcode 7, Apple SDKs may contain textual stub + libraries with .tbd extensions rather than the normal .dylib + shared libraries installed in /. The Apple compiler tool + chain handles this transparently but it can cause problems + for programs that are being built with an SDK and searching + for specific libraries. Callers of find_library_file need to + keep in mind that the base filename of the returned SDK library + file might have a different extension from that of the library + file installed on the running system, for example: + /Applications/Xcode.app/Contents/Developer/Platforms/ + MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/ + usr/lib/libedit.tbd + vs + /usr/lib/libedit.dylib + """ + cflags = sysconfig.get_config_var('CFLAGS') + match = re.search(r'-isysroot\s*(\S+)', cflags) + + apply_root = ( + sys.platform == 'darwin' + and match + and ( + dir.startswith('/System/') + or (dir.startswith('/usr/') and not dir.startswith('/usr/local/')) + ) + ) + + return os.path.join(match.group(1), dir[1:]) if apply_root else dir + + def find_library_file(self, dirs, lib, debug=False): + """ + Second-guess the linker with not much hard + data to go on: GCC seems to prefer the shared library, so + assume that *all* Unix C compilers do, + ignoring even GCC's "-static" option. + """ + lib_names = ( + self.library_filename(lib, lib_type=type) + for type in 'dylib xcode_stub shared static'.split() + ) + + roots = map(self._library_root, dirs) + + searched = itertools.starmap(os.path.join, itertools.product(roots, lib_names)) + + found = filter(os.path.exists, searched) + + # Return None if it could not be found in any dir. + return next(found, None) diff --git a/setuptools/_distutils/compilers/C/zos.py b/setuptools/_distutils/compilers/C/zos.py new file mode 100644 index 0000000000..82d017fc90 --- /dev/null +++ b/setuptools/_distutils/compilers/C/zos.py @@ -0,0 +1,230 @@ +"""distutils.zosccompiler + +Contains the selection of the c & c++ compilers on z/OS. There are several +different c compilers on z/OS, all of them are optional, so the correct +one needs to be chosen based on the users input. This is compatible with +the following compilers: + +IBM C/C++ For Open Enterprise Languages on z/OS 2.0 +IBM Open XL C/C++ 1.1 for z/OS +IBM XL C/C++ V2.4.1 for z/OS 2.4 and 2.5 +IBM z/OS XL C/C++ +""" + +import os + +from ... import sysconfig +from ...errors import DistutilsExecError +from . import unix +from .errors import CompileError + +_cc_args = { + 'ibm-openxl': [ + '-m64', + '-fvisibility=default', + '-fzos-le-char-mode=ascii', + '-fno-short-enums', + ], + 'ibm-xlclang': [ + '-q64', + '-qexportall', + '-qascii', + '-qstrict', + '-qnocsect', + '-Wa,asa,goff', + '-Wa,xplink', + '-qgonumber', + '-qenum=int', + '-Wc,DLL', + ], + 'ibm-xlc': [ + '-q64', + '-qexportall', + '-qascii', + '-qstrict', + '-qnocsect', + '-Wa,asa,goff', + '-Wa,xplink', + '-qgonumber', + '-qenum=int', + '-Wc,DLL', + '-qlanglvl=extc99', + ], +} + +_cxx_args = { + 'ibm-openxl': [ + '-m64', + '-fvisibility=default', + '-fzos-le-char-mode=ascii', + '-fno-short-enums', + ], + 'ibm-xlclang': [ + '-q64', + '-qexportall', + '-qascii', + '-qstrict', + '-qnocsect', + '-Wa,asa,goff', + '-Wa,xplink', + '-qgonumber', + '-qenum=int', + '-Wc,DLL', + ], + 'ibm-xlc': [ + '-q64', + '-qexportall', + '-qascii', + '-qstrict', + '-qnocsect', + '-Wa,asa,goff', + '-Wa,xplink', + '-qgonumber', + '-qenum=int', + '-Wc,DLL', + '-qlanglvl=extended0x', + ], +} + +_asm_args = { + 'ibm-openxl': ['-fasm', '-fno-integrated-as', '-Wa,--ASA', '-Wa,--GOFF'], + 'ibm-xlclang': [], + 'ibm-xlc': [], +} + +_ld_args = { + 'ibm-openxl': [], + 'ibm-xlclang': ['-Wl,dll', '-q64'], + 'ibm-xlc': ['-Wl,dll', '-q64'], +} + + +# Python on z/OS is built with no compiler specific options in it's CFLAGS. +# But each compiler requires it's own specific options to build successfully, +# though some of the options are common between them +class Compiler(unix.Compiler): + src_extensions = ['.c', '.C', '.cc', '.cxx', '.cpp', '.m', '.s'] + _cpp_extensions = ['.cc', '.cpp', '.cxx', '.C'] + _asm_extensions = ['.s'] + + def _get_zos_compiler_name(self): + zos_compiler_names = [ + os.path.basename(binary) + for envvar in ('CC', 'CXX', 'LDSHARED') + if (binary := os.environ.get(envvar, None)) + ] + if len(zos_compiler_names) == 0: + return 'ibm-openxl' + + zos_compilers = {} + for compiler in ( + 'ibm-clang', + 'ibm-clang64', + 'ibm-clang++', + 'ibm-clang++64', + 'clang', + 'clang++', + 'clang-14', + ): + zos_compilers[compiler] = 'ibm-openxl' + + for compiler in ('xlclang', 'xlclang++', 'njsc', 'njsc++'): + zos_compilers[compiler] = 'ibm-xlclang' + + for compiler in ('xlc', 'xlC', 'xlc++'): + zos_compilers[compiler] = 'ibm-xlc' + + return zos_compilers.get(zos_compiler_names[0], 'ibm-openxl') + + def __init__(self, verbose=False, dry_run=False, force=False): + super().__init__(verbose, dry_run, force) + self.zos_compiler = self._get_zos_compiler_name() + sysconfig.customize_compiler(self) + + def _compile(self, obj, src, ext, cc_args, extra_postargs, pp_opts): + local_args = [] + if ext in self._cpp_extensions: + compiler = self.compiler_cxx + local_args.extend(_cxx_args[self.zos_compiler]) + elif ext in self._asm_extensions: + compiler = self.compiler_so + local_args.extend(_cc_args[self.zos_compiler]) + local_args.extend(_asm_args[self.zos_compiler]) + else: + compiler = self.compiler_so + local_args.extend(_cc_args[self.zos_compiler]) + local_args.extend(cc_args) + + try: + self.spawn(compiler + local_args + [src, '-o', obj] + extra_postargs) + except DistutilsExecError as msg: + raise CompileError(msg) + + def runtime_library_dir_option(self, dir): + return '-L' + dir + + def link( + self, + target_desc, + objects, + output_filename, + output_dir=None, + libraries=None, + library_dirs=None, + runtime_library_dirs=None, + export_symbols=None, + debug=False, + extra_preargs=None, + extra_postargs=None, + build_temp=None, + target_lang=None, + ): + # For a built module to use functions from cpython, it needs to use Pythons + # side deck file. The side deck is located beside the libpython3.xx.so + ldversion = sysconfig.get_config_var('LDVERSION') + if sysconfig.python_build: + side_deck_path = os.path.join( + sysconfig.get_config_var('abs_builddir'), + f'libpython{ldversion}.x', + ) + else: + side_deck_path = os.path.join( + sysconfig.get_config_var('installed_base'), + sysconfig.get_config_var('platlibdir'), + f'libpython{ldversion}.x', + ) + + if os.path.exists(side_deck_path): + if extra_postargs: + extra_postargs.append(side_deck_path) + else: + extra_postargs = [side_deck_path] + + # Check and replace libraries included side deck files + if runtime_library_dirs: + for dir in runtime_library_dirs: + for library in libraries[:]: + library_side_deck = os.path.join(dir, f'{library}.x') + if os.path.exists(library_side_deck): + libraries.remove(library) + extra_postargs.append(library_side_deck) + break + + # Any required ld args for the given compiler + extra_postargs.extend(_ld_args[self.zos_compiler]) + + super().link( + target_desc, + objects, + output_filename, + output_dir, + libraries, + library_dirs, + runtime_library_dirs, + export_symbols, + debug, + extra_preargs, + extra_postargs, + build_temp, + target_lang, + ) diff --git a/setuptools/_distutils/core.py b/setuptools/_distutils/core.py new file mode 100644 index 0000000000..bd62546bdd --- /dev/null +++ b/setuptools/_distutils/core.py @@ -0,0 +1,289 @@ +"""distutils.core + +The only module that needs to be imported to use the Distutils; provides +the 'setup' function (which is to be called from the setup script). Also +indirectly provides the Distribution and Command classes, although they are +really defined in distutils.dist and distutils.cmd. +""" + +from __future__ import annotations + +import os +import sys +import tokenize +from collections.abc import Iterable + +from .cmd import Command +from .debug import DEBUG + +# Mainly import these so setup scripts can "from distutils.core import" them. +from .dist import Distribution +from .errors import ( + CCompilerError, + DistutilsArgError, + DistutilsError, + DistutilsSetupError, +) +from .extension import Extension + +__all__ = ['Distribution', 'Command', 'Extension', 'setup'] + +# This is a barebones help message generated displayed when the user +# runs the setup script with no arguments at all. More useful help +# is generated with various --help options: global help, list commands, +# and per-command help. +USAGE = """\ +usage: %(script)s [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...] + or: %(script)s --help [cmd1 cmd2 ...] + or: %(script)s --help-commands + or: %(script)s cmd --help +""" + + +def gen_usage(script_name): + script = os.path.basename(script_name) + return USAGE % locals() + + +# Some mild magic to control the behaviour of 'setup()' from 'run_setup()'. +_setup_stop_after = None +_setup_distribution = None + +# Legal keyword arguments for the setup() function +setup_keywords = ( + 'distclass', + 'script_name', + 'script_args', + 'options', + 'name', + 'version', + 'author', + 'author_email', + 'maintainer', + 'maintainer_email', + 'url', + 'license', + 'description', + 'long_description', + 'keywords', + 'platforms', + 'classifiers', + 'download_url', + 'requires', + 'provides', + 'obsoletes', +) + +# Legal keyword arguments for the Extension constructor +extension_keywords = ( + 'name', + 'sources', + 'include_dirs', + 'define_macros', + 'undef_macros', + 'library_dirs', + 'libraries', + 'runtime_library_dirs', + 'extra_objects', + 'extra_compile_args', + 'extra_link_args', + 'swig_opts', + 'export_symbols', + 'depends', + 'language', +) + + +def setup(**attrs): # noqa: C901 + """The gateway to the Distutils: do everything your setup script needs + to do, in a highly flexible and user-driven way. Briefly: create a + Distribution instance; find and parse config files; parse the command + line; run each Distutils command found there, customized by the options + supplied to 'setup()' (as keyword arguments), in config files, and on + the command line. + + The Distribution instance might be an instance of a class supplied via + the 'distclass' keyword argument to 'setup'; if no such class is + supplied, then the Distribution class (in dist.py) is instantiated. + All other arguments to 'setup' (except for 'cmdclass') are used to set + attributes of the Distribution instance. + + The 'cmdclass' argument, if supplied, is a dictionary mapping command + names to command classes. Each command encountered on the command line + will be turned into a command class, which is in turn instantiated; any + class found in 'cmdclass' is used in place of the default, which is + (for command 'foo_bar') class 'foo_bar' in module + 'distutils.command.foo_bar'. The command class must provide a + 'user_options' attribute which is a list of option specifiers for + 'distutils.fancy_getopt'. Any command-line options between the current + and the next command are used to set attributes of the current command + object. + + When the entire command-line has been successfully parsed, calls the + 'run()' method on each command object in turn. This method will be + driven entirely by the Distribution object (which each command object + has a reference to, thanks to its constructor), and the + command-specific options that became attributes of each command + object. + """ + + global _setup_stop_after, _setup_distribution + + # Determine the distribution class -- either caller-supplied or + # our Distribution (see below). + klass = attrs.get('distclass') + if klass: + attrs.pop('distclass') + else: + klass = Distribution + + if 'script_name' not in attrs: + attrs['script_name'] = os.path.basename(sys.argv[0]) + if 'script_args' not in attrs: + attrs['script_args'] = sys.argv[1:] + + # Create the Distribution instance, using the remaining arguments + # (ie. everything except distclass) to initialize it + try: + _setup_distribution = dist = klass(attrs) + except DistutilsSetupError as msg: + if 'name' not in attrs: + raise SystemExit(f"error in setup command: {msg}") + else: + raise SystemExit("error in {} setup command: {}".format(attrs['name'], msg)) + + if _setup_stop_after == "init": + return dist + + # Find and parse the config file(s): they will override options from + # the setup script, but be overridden by the command line. + dist.parse_config_files() + + if DEBUG: + print("options (after parsing config files):") + dist.dump_option_dicts() + + if _setup_stop_after == "config": + return dist + + # Parse the command line and override config files; any + # command-line errors are the end user's fault, so turn them into + # SystemExit to suppress tracebacks. + try: + ok = dist.parse_command_line() + except DistutilsArgError as msg: + raise SystemExit(gen_usage(dist.script_name) + f"\nerror: {msg}") + + if DEBUG: + print("options (after parsing command line):") + dist.dump_option_dicts() + + if _setup_stop_after == "commandline": + return dist + + # And finally, run all the commands found on the command line. + if ok: + return run_commands(dist) + + return dist + + +# setup () + + +def run_commands(dist): + """Given a Distribution object run all the commands, + raising ``SystemExit`` errors in the case of failure. + + This function assumes that either ``sys.argv`` or ``dist.script_args`` + is already set accordingly. + """ + try: + dist.run_commands() + except KeyboardInterrupt: + raise SystemExit("interrupted") + except OSError as exc: + if DEBUG: + sys.stderr.write(f"error: {exc}\n") + raise + else: + raise SystemExit(f"error: {exc}") + + except (DistutilsError, CCompilerError) as msg: + if DEBUG: + raise + else: + raise SystemExit("error: " + str(msg)) + + return dist + + +def run_setup(script_name, script_args: Iterable[str] | None = None, stop_after="run"): + """Run a setup script in a somewhat controlled environment, and + return the Distribution instance that drives things. This is useful + if you need to find out the distribution meta-data (passed as + keyword args from 'script' to 'setup()', or the contents of the + config files or command-line. + + 'script_name' is a file that will be read and run with 'exec()'; + 'sys.argv[0]' will be replaced with 'script' for the duration of the + call. 'script_args' is a list of strings; if supplied, + 'sys.argv[1:]' will be replaced by 'script_args' for the duration of + the call. + + 'stop_after' tells 'setup()' when to stop processing; possible + values: + init + stop after the Distribution instance has been created and + populated with the keyword arguments to 'setup()' + config + stop after config files have been parsed (and their data + stored in the Distribution instance) + commandline + stop after the command-line ('sys.argv[1:]' or 'script_args') + have been parsed (and the data stored in the Distribution) + run [default] + stop after all commands have been run (the same as if 'setup()' + had been called in the usual way + + Returns the Distribution instance, which provides all information + used to drive the Distutils. + """ + if stop_after not in ('init', 'config', 'commandline', 'run'): + raise ValueError(f"invalid value for 'stop_after': {stop_after!r}") + + global _setup_stop_after, _setup_distribution + _setup_stop_after = stop_after + + save_argv = sys.argv.copy() + g = {'__file__': script_name, '__name__': '__main__'} + try: + try: + sys.argv[0] = script_name + if script_args is not None: + sys.argv[1:] = script_args + # tokenize.open supports automatic encoding detection + with tokenize.open(script_name) as f: + code = f.read().replace(r'\r\n', r'\n') + exec(code, g) + finally: + sys.argv = save_argv + _setup_stop_after = None + except SystemExit: + # Hmm, should we do something if exiting with a non-zero code + # (ie. error)? + pass + + if _setup_distribution is None: + raise RuntimeError( + "'distutils.core.setup()' was never called -- " + f"perhaps '{script_name}' is not a Distutils setup script?" + ) + + # I wonder if the setup script's namespace -- g and l -- would be of + # any interest to callers? + # print "_setup_distribution:", _setup_distribution + return _setup_distribution + + +# run_setup () diff --git a/setuptools/_distutils/cygwinccompiler.py b/setuptools/_distutils/cygwinccompiler.py new file mode 100644 index 0000000000..de89e3cd84 --- /dev/null +++ b/setuptools/_distutils/cygwinccompiler.py @@ -0,0 +1,31 @@ +from .compilers.C import cygwin +from .compilers.C.cygwin import ( + CONFIG_H_NOTOK, + CONFIG_H_OK, + CONFIG_H_UNCERTAIN, + check_config_h, + get_msvcr, + is_cygwincc, +) + +__all__ = [ + 'CONFIG_H_NOTOK', + 'CONFIG_H_OK', + 'CONFIG_H_UNCERTAIN', + 'CygwinCCompiler', + 'Mingw32CCompiler', + 'check_config_h', + 'get_msvcr', + 'is_cygwincc', +] + + +CygwinCCompiler = cygwin.Compiler +Mingw32CCompiler = cygwin.MinGW32Compiler + + +get_versions = None +""" +A stand-in for the previous get_versions() function to prevent failures +when monkeypatched. See pypa/setuptools#2969. +""" diff --git a/setuptools/_distutils/debug.py b/setuptools/_distutils/debug.py new file mode 100644 index 0000000000..daf1660f0d --- /dev/null +++ b/setuptools/_distutils/debug.py @@ -0,0 +1,5 @@ +import os + +# If DISTUTILS_DEBUG is anything other than the empty string, we run in +# debug mode. +DEBUG = os.environ.get('DISTUTILS_DEBUG') diff --git a/setuptools/_distutils/dep_util.py b/setuptools/_distutils/dep_util.py new file mode 100644 index 0000000000..09a8a2e126 --- /dev/null +++ b/setuptools/_distutils/dep_util.py @@ -0,0 +1,14 @@ +import warnings + +from . import _modified + + +def __getattr__(name): + if name not in ['newer', 'newer_group', 'newer_pairwise']: + raise AttributeError(name) + warnings.warn( + "dep_util is Deprecated. Use functions from setuptools instead.", + DeprecationWarning, + stacklevel=2, + ) + return getattr(_modified, name) diff --git a/setuptools/_distutils/dir_util.py b/setuptools/_distutils/dir_util.py new file mode 100644 index 0000000000..d9782602cf --- /dev/null +++ b/setuptools/_distutils/dir_util.py @@ -0,0 +1,244 @@ +"""distutils.dir_util + +Utility functions for manipulating directories and directory trees.""" + +import functools +import itertools +import os +import pathlib + +from . import file_util +from ._log import log +from .errors import DistutilsFileError, DistutilsInternalError + + +class SkipRepeatAbsolutePaths(set): + """ + Cache for mkpath. + + In addition to cheapening redundant calls, eliminates redundant + "creating /foo/bar/baz" messages in dry-run mode. + """ + + def __init__(self): + SkipRepeatAbsolutePaths.instance = self + + @classmethod + def clear(cls): + super(cls, cls.instance).clear() + + def wrap(self, func): + @functools.wraps(func) + def wrapper(path, *args, **kwargs): + if path.absolute() in self: + return + result = func(path, *args, **kwargs) + self.add(path.absolute()) + return result + + return wrapper + + +# Python 3.8 compatibility +wrapper = SkipRepeatAbsolutePaths().wrap + + +@functools.singledispatch +@wrapper +def mkpath(name: pathlib.Path, mode=0o777, verbose=True, dry_run=False) -> None: + """Create a directory and any missing ancestor directories. + + If the directory already exists (or if 'name' is the empty string, which + means the current directory, which of course exists), then do nothing. + Raise DistutilsFileError if unable to create some directory along the way + (eg. some sub-path exists, but is a file rather than a directory). + If 'verbose' is true, log the directory created. + """ + if verbose and not name.is_dir(): + log.info("creating %s", name) + + try: + dry_run or name.mkdir(mode=mode, parents=True, exist_ok=True) + except OSError as exc: + raise DistutilsFileError(f"could not create '{name}': {exc.args[-1]}") + + +@mkpath.register +def _(name: str, *args, **kwargs): + return mkpath(pathlib.Path(name), *args, **kwargs) + + +@mkpath.register +def _(name: None, *args, **kwargs): + """ + Detect a common bug -- name is None. + """ + raise DistutilsInternalError(f"mkpath: 'name' must be a string (got {name!r})") + + +def create_tree(base_dir, files, mode=0o777, verbose=True, dry_run=False): + """Create all the empty directories under 'base_dir' needed to put 'files' + there. + + 'base_dir' is just the name of a directory which doesn't necessarily + exist yet; 'files' is a list of filenames to be interpreted relative to + 'base_dir'. 'base_dir' + the directory portion of every file in 'files' + will be created if it doesn't already exist. 'mode', 'verbose' and + 'dry_run' flags are as for 'mkpath()'. + """ + # First get the list of directories to create + need_dir = set(os.path.join(base_dir, os.path.dirname(file)) for file in files) + + # Now create them + for dir in sorted(need_dir): + mkpath(dir, mode, verbose=verbose, dry_run=dry_run) + + +def copy_tree( + src, + dst, + preserve_mode=True, + preserve_times=True, + preserve_symlinks=False, + update=False, + verbose=True, + dry_run=False, +): + """Copy an entire directory tree 'src' to a new location 'dst'. + + Both 'src' and 'dst' must be directory names. If 'src' is not a + directory, raise DistutilsFileError. If 'dst' does not exist, it is + created with 'mkpath()'. The end result of the copy is that every + file in 'src' is copied to 'dst', and directories under 'src' are + recursively copied to 'dst'. Return the list of files that were + copied or might have been copied, using their output name. The + return value is unaffected by 'update' or 'dry_run': it is simply + the list of all files under 'src', with the names changed to be + under 'dst'. + + 'preserve_mode' and 'preserve_times' are the same as for + 'copy_file'; note that they only apply to regular files, not to + directories. If 'preserve_symlinks' is true, symlinks will be + copied as symlinks (on platforms that support them!); otherwise + (the default), the destination of the symlink will be copied. + 'update' and 'verbose' are the same as for 'copy_file'. + """ + if not dry_run and not os.path.isdir(src): + raise DistutilsFileError(f"cannot copy tree '{src}': not a directory") + try: + names = os.listdir(src) + except OSError as e: + if dry_run: + names = [] + else: + raise DistutilsFileError(f"error listing files in '{src}': {e.strerror}") + + if not dry_run: + mkpath(dst, verbose=verbose) + + copy_one = functools.partial( + _copy_one, + src=src, + dst=dst, + preserve_symlinks=preserve_symlinks, + verbose=verbose, + dry_run=dry_run, + preserve_mode=preserve_mode, + preserve_times=preserve_times, + update=update, + ) + return list(itertools.chain.from_iterable(map(copy_one, names))) + + +def _copy_one( + name, + *, + src, + dst, + preserve_symlinks, + verbose, + dry_run, + preserve_mode, + preserve_times, + update, +): + src_name = os.path.join(src, name) + dst_name = os.path.join(dst, name) + + if name.startswith('.nfs'): + # skip NFS rename files + return + + if preserve_symlinks and os.path.islink(src_name): + link_dest = os.readlink(src_name) + if verbose >= 1: + log.info("linking %s -> %s", dst_name, link_dest) + if not dry_run: + os.symlink(link_dest, dst_name) + yield dst_name + + elif os.path.isdir(src_name): + yield from copy_tree( + src_name, + dst_name, + preserve_mode, + preserve_times, + preserve_symlinks, + update, + verbose=verbose, + dry_run=dry_run, + ) + else: + file_util.copy_file( + src_name, + dst_name, + preserve_mode, + preserve_times, + update, + verbose=verbose, + dry_run=dry_run, + ) + yield dst_name + + +def _build_cmdtuple(path, cmdtuples): + """Helper for remove_tree().""" + for f in os.listdir(path): + real_f = os.path.join(path, f) + if os.path.isdir(real_f) and not os.path.islink(real_f): + _build_cmdtuple(real_f, cmdtuples) + else: + cmdtuples.append((os.remove, real_f)) + cmdtuples.append((os.rmdir, path)) + + +def remove_tree(directory, verbose=True, dry_run=False): + """Recursively remove an entire directory tree. + + Any errors are ignored (apart from being reported to stdout if 'verbose' + is true). + """ + if verbose >= 1: + log.info("removing '%s' (and everything under it)", directory) + if dry_run: + return + cmdtuples = [] + _build_cmdtuple(directory, cmdtuples) + for cmd in cmdtuples: + try: + cmd[0](cmd[1]) + # Clear the cache + SkipRepeatAbsolutePaths.clear() + except OSError as exc: + log.warning("error removing %s: %s", directory, exc) + + +def ensure_relative(path): + """Take the full path 'path', and make it a relative path. + + This is useful to make 'path' the second argument to os.path.join(). + """ + drive, path = os.path.splitdrive(path) + if path[0:1] == os.sep: + path = drive + path[1:] + return path diff --git a/setuptools/_distutils/dist.py b/setuptools/_distutils/dist.py new file mode 100644 index 0000000000..37b788df92 --- /dev/null +++ b/setuptools/_distutils/dist.py @@ -0,0 +1,1386 @@ +"""distutils.dist + +Provides the Distribution class, which represents the module distribution +being built/installed/distributed. +""" + +from __future__ import annotations + +import contextlib +import logging +import os +import pathlib +import re +import sys +import warnings +from collections.abc import Iterable, MutableMapping +from email import message_from_file +from typing import ( + IO, + TYPE_CHECKING, + Any, + ClassVar, + Literal, + TypeVar, + Union, + overload, +) + +from packaging.utils import canonicalize_name, canonicalize_version + +from ._log import log +from .debug import DEBUG +from .errors import ( + DistutilsArgError, + DistutilsClassError, + DistutilsModuleError, + DistutilsOptionError, +) +from .fancy_getopt import FancyGetopt, translate_longopt +from .util import check_environ, rfc822_escape, strtobool + +if TYPE_CHECKING: + from _typeshed import SupportsWrite + from typing_extensions import TypeAlias + + # type-only import because of mutual dependence between these modules + from .cmd import Command + +_CommandT = TypeVar("_CommandT", bound="Command") +_OptionsList: TypeAlias = list[ + Union[tuple[str, Union[str, None], str, int], tuple[str, Union[str, None], str]] +] + + +# Regex to define acceptable Distutils command names. This is not *quite* +# the same as a Python NAME -- I don't allow leading underscores. The fact +# that they're very similar is no coincidence; the default naming scheme is +# to look for a Python module named after the command. +command_re = re.compile(r'^[a-zA-Z]([a-zA-Z0-9_]*)$') + + +def _ensure_list(value: str | Iterable[str], fieldname) -> str | list[str]: + if isinstance(value, str): + # a string containing comma separated values is okay. It will + # be converted to a list by Distribution.finalize_options(). + pass + elif not isinstance(value, list): + # passing a tuple or an iterator perhaps, warn and convert + typename = type(value).__name__ + msg = "Warning: '{fieldname}' should be a list, got type '{typename}'" + msg = msg.format(**locals()) + log.warning(msg) + value = list(value) + return value + + +class Distribution: + """The core of the Distutils. Most of the work hiding behind 'setup' + is really done within a Distribution instance, which farms the work out + to the Distutils commands specified on the command line. + + Setup scripts will almost never instantiate Distribution directly, + unless the 'setup()' function is totally inadequate to their needs. + However, it is conceivable that a setup script might wish to subclass + Distribution for some specialized purpose, and then pass the subclass + to 'setup()' as the 'distclass' keyword argument. If so, it is + necessary to respect the expectations that 'setup' has of Distribution. + See the code for 'setup()', in core.py, for details. + """ + + # 'global_options' describes the command-line options that may be + # supplied to the setup script prior to any actual commands. + # Eg. "./setup.py -n" or "./setup.py --quiet" both take advantage of + # these global options. This list should be kept to a bare minimum, + # since every global option is also valid as a command option -- and we + # don't want to pollute the commands with too many options that they + # have minimal control over. + # The fourth entry for verbose means that it can be repeated. + global_options: ClassVar[_OptionsList] = [ + ('verbose', 'v', "run verbosely (default)", 1), + ('quiet', 'q', "run quietly (turns verbosity off)"), + ('dry-run', 'n', "don't actually do anything"), + ('help', 'h', "show detailed help message"), + ('no-user-cfg', None, 'ignore pydistutils.cfg in your home directory'), + ] + + # 'common_usage' is a short (2-3 line) string describing the common + # usage of the setup script. + common_usage: ClassVar[str] = """\ +Common commands: (see '--help-commands' for more) + + setup.py build will build the package underneath 'build/' + setup.py install will install the package +""" + + # options that are not propagated to the commands + display_options: ClassVar[_OptionsList] = [ + ('help-commands', None, "list all available commands"), + ('name', None, "print package name"), + ('version', 'V', "print package version"), + ('fullname', None, "print -"), + ('author', None, "print the author's name"), + ('author-email', None, "print the author's email address"), + ('maintainer', None, "print the maintainer's name"), + ('maintainer-email', None, "print the maintainer's email address"), + ('contact', None, "print the maintainer's name if known, else the author's"), + ( + 'contact-email', + None, + "print the maintainer's email address if known, else the author's", + ), + ('url', None, "print the URL for this package"), + ('license', None, "print the license of the package"), + ('licence', None, "alias for --license"), + ('description', None, "print the package description"), + ('long-description', None, "print the long package description"), + ('platforms', None, "print the list of platforms"), + ('classifiers', None, "print the list of classifiers"), + ('keywords', None, "print the list of keywords"), + ('provides', None, "print the list of packages/modules provided"), + ('requires', None, "print the list of packages/modules required"), + ('obsoletes', None, "print the list of packages/modules made obsolete"), + ] + display_option_names: ClassVar[list[str]] = [ + translate_longopt(x[0]) for x in display_options + ] + + # negative options are options that exclude other options + negative_opt: ClassVar[dict[str, str]] = {'quiet': 'verbose'} + + # -- Creation/initialization methods ------------------------------- + + # Can't Unpack a TypedDict with optional properties, so using Any instead + def __init__(self, attrs: MutableMapping[str, Any] | None = None) -> None: # noqa: C901 + """Construct a new Distribution instance: initialize all the + attributes of a Distribution, and then use 'attrs' (a dictionary + mapping attribute names to values) to assign some of those + attributes their "real" values. (Any attributes not mentioned in + 'attrs' will be assigned to some null value: 0, None, an empty list + or dictionary, etc.) Most importantly, initialize the + 'command_obj' attribute to the empty dictionary; this will be + filled in with real command objects by 'parse_command_line()'. + """ + + # Default values for our command-line options + self.verbose = True + self.dry_run = False + self.help = False + for attr in self.display_option_names: + setattr(self, attr, False) + + # Store the distribution meta-data (name, version, author, and so + # forth) in a separate object -- we're getting to have enough + # information here (and enough command-line options) that it's + # worth it. Also delegate 'get_XXX()' methods to the 'metadata' + # object in a sneaky and underhanded (but efficient!) way. + self.metadata = DistributionMetadata() + for basename in self.metadata._METHOD_BASENAMES: + method_name = "get_" + basename + setattr(self, method_name, getattr(self.metadata, method_name)) + + # 'cmdclass' maps command names to class objects, so we + # can 1) quickly figure out which class to instantiate when + # we need to create a new command object, and 2) have a way + # for the setup script to override command classes + self.cmdclass: dict[str, type[Command]] = {} + + # 'command_packages' is a list of packages in which commands + # are searched for. The factory for command 'foo' is expected + # to be named 'foo' in the module 'foo' in one of the packages + # named here. This list is searched from the left; an error + # is raised if no named package provides the command being + # searched for. (Always access using get_command_packages().) + self.command_packages: str | list[str] | None = None + + # 'script_name' and 'script_args' are usually set to sys.argv[0] + # and sys.argv[1:], but they can be overridden when the caller is + # not necessarily a setup script run from the command-line. + self.script_name: str | os.PathLike[str] | None = None + self.script_args: list[str] | None = None + + # 'command_options' is where we store command options between + # parsing them (from config files, the command-line, etc.) and when + # they are actually needed -- ie. when the command in question is + # instantiated. It is a dictionary of dictionaries of 2-tuples: + # command_options = { command_name : { option : (source, value) } } + self.command_options: dict[str, dict[str, tuple[str, str]]] = {} + + # 'dist_files' is the list of (command, pyversion, file) that + # have been created by any dist commands run so far. This is + # filled regardless of whether the run is dry or not. pyversion + # gives sysconfig.get_python_version() if the dist file is + # specific to a Python version, 'any' if it is good for all + # Python versions on the target platform, and '' for a source + # file. pyversion should not be used to specify minimum or + # maximum required Python versions; use the metainfo for that + # instead. + self.dist_files: list[tuple[str, str, str]] = [] + + # These options are really the business of various commands, rather + # than of the Distribution itself. We provide aliases for them in + # Distribution as a convenience to the developer. + self.packages = None + self.package_data: dict[str, list[str]] = {} + self.package_dir = None + self.py_modules = None + self.libraries = None + self.headers = None + self.ext_modules = None + self.ext_package = None + self.include_dirs = None + self.extra_path = None + self.scripts = None + self.data_files = None + self.password = '' + + # And now initialize bookkeeping stuff that can't be supplied by + # the caller at all. 'command_obj' maps command names to + # Command instances -- that's how we enforce that every command + # class is a singleton. + self.command_obj: dict[str, Command] = {} + + # 'have_run' maps command names to boolean values; it keeps track + # of whether we have actually run a particular command, to make it + # cheap to "run" a command whenever we think we might need to -- if + # it's already been done, no need for expensive filesystem + # operations, we just check the 'have_run' dictionary and carry on. + # It's only safe to query 'have_run' for a command class that has + # been instantiated -- a false value will be inserted when the + # command object is created, and replaced with a true value when + # the command is successfully run. Thus it's probably best to use + # '.get()' rather than a straight lookup. + self.have_run: dict[str, bool] = {} + + # Now we'll use the attrs dictionary (ultimately, keyword args from + # the setup script) to possibly override any or all of these + # distribution options. + + if attrs: + # Pull out the set of command options and work on them + # specifically. Note that this order guarantees that aliased + # command options will override any supplied redundantly + # through the general options dictionary. + options = attrs.get('options') + if options is not None: + del attrs['options'] + for command, cmd_options in options.items(): + opt_dict = self.get_option_dict(command) + for opt, val in cmd_options.items(): + opt_dict[opt] = ("setup script", val) + + if 'licence' in attrs: + attrs['license'] = attrs['licence'] + del attrs['licence'] + msg = "'licence' distribution option is deprecated; use 'license'" + warnings.warn(msg) + + # Now work on the rest of the attributes. Any attribute that's + # not already defined is invalid! + for key, val in attrs.items(): + if hasattr(self.metadata, "set_" + key): + getattr(self.metadata, "set_" + key)(val) + elif hasattr(self.metadata, key): + setattr(self.metadata, key, val) + elif hasattr(self, key): + setattr(self, key, val) + else: + msg = f"Unknown distribution option: {key!r}" + warnings.warn(msg) + + # no-user-cfg is handled before other command line args + # because other args override the config files, and this + # one is needed before we can load the config files. + # If attrs['script_args'] wasn't passed, assume false. + # + # This also make sure we just look at the global options + self.want_user_cfg = True + + if self.script_args is not None: + # Coerce any possible iterable from attrs into a list + self.script_args = list(self.script_args) + for arg in self.script_args: + if not arg.startswith('-'): + break + if arg == '--no-user-cfg': + self.want_user_cfg = False + break + + self.finalize_options() + + def get_option_dict(self, command): + """Get the option dictionary for a given command. If that + command's option dictionary hasn't been created yet, then create it + and return the new dictionary; otherwise, return the existing + option dictionary. + """ + dict = self.command_options.get(command) + if dict is None: + dict = self.command_options[command] = {} + return dict + + def dump_option_dicts(self, header=None, commands=None, indent: str = "") -> None: + from pprint import pformat + + if commands is None: # dump all command option dicts + commands = sorted(self.command_options.keys()) + + if header is not None: + self.announce(indent + header) + indent = indent + " " + + if not commands: + self.announce(indent + "no commands known yet") + return + + for cmd_name in commands: + opt_dict = self.command_options.get(cmd_name) + if opt_dict is None: + self.announce(indent + f"no option dict for '{cmd_name}' command") + else: + self.announce(indent + f"option dict for '{cmd_name}' command:") + out = pformat(opt_dict) + for line in out.split('\n'): + self.announce(indent + " " + line) + + # -- Config file finding/parsing methods --------------------------- + + def find_config_files(self): + """Find as many configuration files as should be processed for this + platform, and return a list of filenames in the order in which they + should be parsed. The filenames returned are guaranteed to exist + (modulo nasty race conditions). + + There are multiple possible config files: + - distutils.cfg in the Distutils installation directory (i.e. + where the top-level Distutils __inst__.py file lives) + - a file in the user's home directory named .pydistutils.cfg + on Unix and pydistutils.cfg on Windows/Mac; may be disabled + with the ``--no-user-cfg`` option + - setup.cfg in the current directory + - a file named by an environment variable + """ + check_environ() + files = [str(path) for path in self._gen_paths() if os.path.isfile(path)] + + if DEBUG: + self.announce("using config files: {}".format(', '.join(files))) + + return files + + def _gen_paths(self): + # The system-wide Distutils config file + sys_dir = pathlib.Path(sys.modules['distutils'].__file__).parent + yield sys_dir / "distutils.cfg" + + # The per-user config file + prefix = '.' * (os.name == 'posix') + filename = prefix + 'pydistutils.cfg' + if self.want_user_cfg: + with contextlib.suppress(RuntimeError): + yield pathlib.Path('~').expanduser() / filename + + # All platforms support local setup.cfg + yield pathlib.Path('setup.cfg') + + # Additional config indicated in the environment + with contextlib.suppress(TypeError): + yield pathlib.Path(os.getenv("DIST_EXTRA_CONFIG")) + + def parse_config_files(self, filenames=None): # noqa: C901 + from configparser import ConfigParser + + # Ignore install directory options if we have a venv + if sys.prefix != sys.base_prefix: + ignore_options = [ + 'install-base', + 'install-platbase', + 'install-lib', + 'install-platlib', + 'install-purelib', + 'install-headers', + 'install-scripts', + 'install-data', + 'prefix', + 'exec-prefix', + 'home', + 'user', + 'root', + ] + else: + ignore_options = [] + + ignore_options = frozenset(ignore_options) + + if filenames is None: + filenames = self.find_config_files() + + if DEBUG: + self.announce("Distribution.parse_config_files():") + + parser = ConfigParser() + for filename in filenames: + if DEBUG: + self.announce(f" reading {filename}") + parser.read(filename, encoding='utf-8') + for section in parser.sections(): + options = parser.options(section) + opt_dict = self.get_option_dict(section) + + for opt in options: + if opt != '__name__' and opt not in ignore_options: + val = parser.get(section, opt) + opt = opt.replace('-', '_') + opt_dict[opt] = (filename, val) + + # Make the ConfigParser forget everything (so we retain + # the original filenames that options come from) + parser.__init__() + + # If there was a "global" section in the config file, use it + # to set Distribution options. + + if 'global' in self.command_options: + for opt, (_src, val) in self.command_options['global'].items(): + alias = self.negative_opt.get(opt) + try: + if alias: + setattr(self, alias, not strtobool(val)) + elif opt in ('verbose', 'dry_run'): # ugh! + setattr(self, opt, strtobool(val)) + else: + setattr(self, opt, val) + except ValueError as msg: + raise DistutilsOptionError(msg) + + # -- Command-line parsing methods ---------------------------------- + + def parse_command_line(self): + """Parse the setup script's command line, taken from the + 'script_args' instance attribute (which defaults to 'sys.argv[1:]' + -- see 'setup()' in core.py). This list is first processed for + "global options" -- options that set attributes of the Distribution + instance. Then, it is alternately scanned for Distutils commands + and options for that command. Each new command terminates the + options for the previous command. The allowed options for a + command are determined by the 'user_options' attribute of the + command class -- thus, we have to be able to load command classes + in order to parse the command line. Any error in that 'options' + attribute raises DistutilsGetoptError; any error on the + command-line raises DistutilsArgError. If no Distutils commands + were found on the command line, raises DistutilsArgError. Return + true if command-line was successfully parsed and we should carry + on with executing commands; false if no errors but we shouldn't + execute commands (currently, this only happens if user asks for + help). + """ + # + # We now have enough information to show the Macintosh dialog + # that allows the user to interactively specify the "command line". + # + toplevel_options = self._get_toplevel_options() + + # We have to parse the command line a bit at a time -- global + # options, then the first command, then its options, and so on -- + # because each command will be handled by a different class, and + # the options that are valid for a particular class aren't known + # until we have loaded the command class, which doesn't happen + # until we know what the command is. + + self.commands = [] + parser = FancyGetopt(toplevel_options + self.display_options) + parser.set_negative_aliases(self.negative_opt) + parser.set_aliases({'licence': 'license'}) + args = parser.getopt(args=self.script_args, object=self) + option_order = parser.get_option_order() + logging.getLogger().setLevel(logging.WARN - 10 * self.verbose) + + # for display options we return immediately + if self.handle_display_options(option_order): + return + while args: + args = self._parse_command_opts(parser, args) + if args is None: # user asked for help (and got it) + return + + # Handle the cases of --help as a "global" option, ie. + # "setup.py --help" and "setup.py --help command ...". For the + # former, we show global options (--verbose, --dry-run, etc.) + # and display-only options (--name, --version, etc.); for the + # latter, we omit the display-only options and show help for + # each command listed on the command line. + if self.help: + self._show_help( + parser, display_options=len(self.commands) == 0, commands=self.commands + ) + return + + # Oops, no commands found -- an end-user error + if not self.commands: + raise DistutilsArgError("no commands supplied") + + # All is well: return true + return True + + def _get_toplevel_options(self): + """Return the non-display options recognized at the top level. + + This includes options that are recognized *only* at the top + level as well as options recognized for commands. + """ + return self.global_options + [ + ( + "command-packages=", + None, + "list of packages that provide distutils commands", + ), + ] + + def _parse_command_opts(self, parser, args): # noqa: C901 + """Parse the command-line options for a single command. + 'parser' must be a FancyGetopt instance; 'args' must be the list + of arguments, starting with the current command (whose options + we are about to parse). Returns a new version of 'args' with + the next command at the front of the list; will be the empty + list if there are no more commands on the command line. Returns + None if the user asked for help on this command. + """ + # late import because of mutual dependence between these modules + from distutils.cmd import Command + + # Pull the current command from the head of the command line + command = args[0] + if not command_re.match(command): + raise SystemExit(f"invalid command name '{command}'") + self.commands.append(command) + + # Dig up the command class that implements this command, so we + # 1) know that it's a valid command, and 2) know which options + # it takes. + try: + cmd_class = self.get_command_class(command) + except DistutilsModuleError as msg: + raise DistutilsArgError(msg) + + # Require that the command class be derived from Command -- want + # to be sure that the basic "command" interface is implemented. + if not issubclass(cmd_class, Command): + raise DistutilsClassError( + f"command class {cmd_class} must subclass Command" + ) + + # Also make sure that the command object provides a list of its + # known options. + if not ( + hasattr(cmd_class, 'user_options') + and isinstance(cmd_class.user_options, list) + ): + msg = ( + "command class %s must provide " + "'user_options' attribute (a list of tuples)" + ) + raise DistutilsClassError(msg % cmd_class) + + # If the command class has a list of negative alias options, + # merge it in with the global negative aliases. + negative_opt = self.negative_opt + if hasattr(cmd_class, 'negative_opt'): + negative_opt = negative_opt.copy() + negative_opt.update(cmd_class.negative_opt) + + # Check for help_options in command class. They have a different + # format (tuple of four) so we need to preprocess them here. + if hasattr(cmd_class, 'help_options') and isinstance( + cmd_class.help_options, list + ): + help_options = fix_help_options(cmd_class.help_options) + else: + help_options = [] + + # All commands support the global options too, just by adding + # in 'global_options'. + parser.set_option_table( + self.global_options + cmd_class.user_options + help_options + ) + parser.set_negative_aliases(negative_opt) + (args, opts) = parser.getopt(args[1:]) + if hasattr(opts, 'help') and opts.help: + self._show_help(parser, display_options=False, commands=[cmd_class]) + return + + if hasattr(cmd_class, 'help_options') and isinstance( + cmd_class.help_options, list + ): + help_option_found = 0 + for help_option, _short, _desc, func in cmd_class.help_options: + if hasattr(opts, parser.get_attr_name(help_option)): + help_option_found = 1 + if callable(func): + func() + else: + raise DistutilsClassError( + f"invalid help function {func!r} for help option '{help_option}': " + "must be a callable object (function, etc.)" + ) + + if help_option_found: + return + + # Put the options from the command-line into their official + # holding pen, the 'command_options' dictionary. + opt_dict = self.get_option_dict(command) + for name, value in vars(opts).items(): + opt_dict[name] = ("command line", value) + + return args + + def finalize_options(self) -> None: + """Set final values for all the options on the Distribution + instance, analogous to the .finalize_options() method of Command + objects. + """ + for attr in ('keywords', 'platforms'): + value = getattr(self.metadata, attr) + if value is None: + continue + if isinstance(value, str): + value = [elm.strip() for elm in value.split(',')] + setattr(self.metadata, attr, value) + + def _show_help( + self, parser, global_options=True, display_options=True, commands: Iterable = () + ): + """Show help for the setup script command-line in the form of + several lists of command-line options. 'parser' should be a + FancyGetopt instance; do not expect it to be returned in the + same state, as its option table will be reset to make it + generate the correct help text. + + If 'global_options' is true, lists the global options: + --verbose, --dry-run, etc. If 'display_options' is true, lists + the "display-only" options: --name, --version, etc. Finally, + lists per-command help for every command name or command class + in 'commands'. + """ + # late import because of mutual dependence between these modules + from distutils.cmd import Command + from distutils.core import gen_usage + + if global_options: + if display_options: + options = self._get_toplevel_options() + else: + options = self.global_options + parser.set_option_table(options) + parser.print_help(self.common_usage + "\nGlobal options:") + print() + + if display_options: + parser.set_option_table(self.display_options) + parser.print_help( + "Information display options (just display information, ignore any commands)" + ) + print() + + for command in commands: + if isinstance(command, type) and issubclass(command, Command): + klass = command + else: + klass = self.get_command_class(command) + if hasattr(klass, 'help_options') and isinstance(klass.help_options, list): + parser.set_option_table( + klass.user_options + fix_help_options(klass.help_options) + ) + else: + parser.set_option_table(klass.user_options) + parser.print_help(f"Options for '{klass.__name__}' command:") + print() + + print(gen_usage(self.script_name)) + + def handle_display_options(self, option_order): + """If there were any non-global "display-only" options + (--help-commands or the metadata display options) on the command + line, display the requested info and return true; else return + false. + """ + from distutils.core import gen_usage + + # User just wants a list of commands -- we'll print it out and stop + # processing now (ie. if they ran "setup --help-commands foo bar", + # we ignore "foo bar"). + if self.help_commands: + self.print_commands() + print() + print(gen_usage(self.script_name)) + return 1 + + # If user supplied any of the "display metadata" options, then + # display that metadata in the order in which the user supplied the + # metadata options. + any_display_options = 0 + is_display_option = set() + for option in self.display_options: + is_display_option.add(option[0]) + + for opt, val in option_order: + if val and opt in is_display_option: + opt = translate_longopt(opt) + value = getattr(self.metadata, "get_" + opt)() + if opt in ('keywords', 'platforms'): + print(','.join(value)) + elif opt in ('classifiers', 'provides', 'requires', 'obsoletes'): + print('\n'.join(value)) + else: + print(value) + any_display_options = 1 + + return any_display_options + + def print_command_list(self, commands, header, max_length) -> None: + """Print a subset of the list of all commands -- used by + 'print_commands()'. + """ + print(header + ":") + + for cmd in commands: + klass = self.cmdclass.get(cmd) + if not klass: + klass = self.get_command_class(cmd) + try: + description = klass.description + except AttributeError: + description = "(no description available)" + + print(f" {cmd:<{max_length}} {description}") + + def print_commands(self) -> None: + """Print out a help message listing all available commands with a + description of each. The list is divided into "standard commands" + (listed in distutils.command.__all__) and "extra commands" + (mentioned in self.cmdclass, but not a standard command). The + descriptions come from the command class attribute + 'description'. + """ + import distutils.command + + std_commands = distutils.command.__all__ + is_std = set(std_commands) + + extra_commands = [cmd for cmd in self.cmdclass.keys() if cmd not in is_std] + + max_length = 0 + for cmd in std_commands + extra_commands: + if len(cmd) > max_length: + max_length = len(cmd) + + self.print_command_list(std_commands, "Standard commands", max_length) + if extra_commands: + print() + self.print_command_list(extra_commands, "Extra commands", max_length) + + def get_command_list(self): + """Get a list of (command, description) tuples. + The list is divided into "standard commands" (listed in + distutils.command.__all__) and "extra commands" (mentioned in + self.cmdclass, but not a standard command). The descriptions come + from the command class attribute 'description'. + """ + # Currently this is only used on Mac OS, for the Mac-only GUI + # Distutils interface (by Jack Jansen) + import distutils.command + + std_commands = distutils.command.__all__ + is_std = set(std_commands) + + extra_commands = [cmd for cmd in self.cmdclass.keys() if cmd not in is_std] + + rv = [] + for cmd in std_commands + extra_commands: + klass = self.cmdclass.get(cmd) + if not klass: + klass = self.get_command_class(cmd) + try: + description = klass.description + except AttributeError: + description = "(no description available)" + rv.append((cmd, description)) + return rv + + # -- Command class/object methods ---------------------------------- + + def get_command_packages(self): + """Return a list of packages from which commands are loaded.""" + pkgs = self.command_packages + if not isinstance(pkgs, list): + if pkgs is None: + pkgs = '' + pkgs = [pkg.strip() for pkg in pkgs.split(',') if pkg != ''] + if "distutils.command" not in pkgs: + pkgs.insert(0, "distutils.command") + self.command_packages = pkgs + return pkgs + + def get_command_class(self, command: str) -> type[Command]: + """Return the class that implements the Distutils command named by + 'command'. First we check the 'cmdclass' dictionary; if the + command is mentioned there, we fetch the class object from the + dictionary and return it. Otherwise we load the command module + ("distutils.command." + command) and fetch the command class from + the module. The loaded class is also stored in 'cmdclass' + to speed future calls to 'get_command_class()'. + + Raises DistutilsModuleError if the expected module could not be + found, or if that module does not define the expected class. + """ + klass = self.cmdclass.get(command) + if klass: + return klass + + for pkgname in self.get_command_packages(): + module_name = f"{pkgname}.{command}" + klass_name = command + + try: + __import__(module_name) + module = sys.modules[module_name] + except ImportError: + continue + + try: + klass = getattr(module, klass_name) + except AttributeError: + raise DistutilsModuleError( + f"invalid command '{command}' (no class '{klass_name}' in module '{module_name}')" + ) + + self.cmdclass[command] = klass + return klass + + raise DistutilsModuleError(f"invalid command '{command}'") + + @overload + def get_command_obj( + self, command: str, create: Literal[True] = True + ) -> Command: ... + @overload + def get_command_obj( + self, command: str, create: Literal[False] + ) -> Command | None: ... + def get_command_obj(self, command: str, create: bool = True) -> Command | None: + """Return the command object for 'command'. Normally this object + is cached on a previous call to 'get_command_obj()'; if no command + object for 'command' is in the cache, then we either create and + return it (if 'create' is true) or return None. + """ + cmd_obj = self.command_obj.get(command) + if not cmd_obj and create: + if DEBUG: + self.announce( + "Distribution.get_command_obj(): " + f"creating '{command}' command object" + ) + + klass = self.get_command_class(command) + cmd_obj = self.command_obj[command] = klass(self) + self.have_run[command] = False + + # Set any options that were supplied in config files + # or on the command line. (NB. support for error + # reporting is lame here: any errors aren't reported + # until 'finalize_options()' is called, which means + # we won't report the source of the error.) + options = self.command_options.get(command) + if options: + self._set_command_options(cmd_obj, options) + + return cmd_obj + + def _set_command_options(self, command_obj, option_dict=None): # noqa: C901 + """Set the options for 'command_obj' from 'option_dict'. Basically + this means copying elements of a dictionary ('option_dict') to + attributes of an instance ('command'). + + 'command_obj' must be a Command instance. If 'option_dict' is not + supplied, uses the standard option dictionary for this command + (from 'self.command_options'). + """ + command_name = command_obj.get_command_name() + if option_dict is None: + option_dict = self.get_option_dict(command_name) + + if DEBUG: + self.announce(f" setting options for '{command_name}' command:") + for option, (source, value) in option_dict.items(): + if DEBUG: + self.announce(f" {option} = {value} (from {source})") + try: + bool_opts = [translate_longopt(o) for o in command_obj.boolean_options] + except AttributeError: + bool_opts = [] + try: + neg_opt = command_obj.negative_opt + except AttributeError: + neg_opt = {} + + try: + is_string = isinstance(value, str) + if option in neg_opt and is_string: + setattr(command_obj, neg_opt[option], not strtobool(value)) + elif option in bool_opts and is_string: + setattr(command_obj, option, strtobool(value)) + elif hasattr(command_obj, option): + setattr(command_obj, option, value) + else: + raise DistutilsOptionError( + f"error in {source}: command '{command_name}' has no such option '{option}'" + ) + except ValueError as msg: + raise DistutilsOptionError(msg) + + @overload + def reinitialize_command( + self, command: str, reinit_subcommands: bool = False + ) -> Command: ... + @overload + def reinitialize_command( + self, command: _CommandT, reinit_subcommands: bool = False + ) -> _CommandT: ... + def reinitialize_command( + self, command: str | Command, reinit_subcommands=False + ) -> Command: + """Reinitializes a command to the state it was in when first + returned by 'get_command_obj()': ie., initialized but not yet + finalized. This provides the opportunity to sneak option + values in programmatically, overriding or supplementing + user-supplied values from the config files and command line. + You'll have to re-finalize the command object (by calling + 'finalize_options()' or 'ensure_finalized()') before using it for + real. + + 'command' should be a command name (string) or command object. If + 'reinit_subcommands' is true, also reinitializes the command's + sub-commands, as declared by the 'sub_commands' class attribute (if + it has one). See the "install" command for an example. Only + reinitializes the sub-commands that actually matter, ie. those + whose test predicates return true. + + Returns the reinitialized command object. + """ + from distutils.cmd import Command + + if not isinstance(command, Command): + command_name = command + command = self.get_command_obj(command_name) + else: + command_name = command.get_command_name() + + if not command.finalized: + return command + command.initialize_options() + command.finalized = False + self.have_run[command_name] = False + self._set_command_options(command) + + if reinit_subcommands: + for sub in command.get_sub_commands(): + self.reinitialize_command(sub, reinit_subcommands) + + return command + + # -- Methods that operate on the Distribution ---------------------- + + def announce(self, msg, level: int = logging.INFO) -> None: + log.log(level, msg) + + def run_commands(self) -> None: + """Run each command that was seen on the setup script command line. + Uses the list of commands found and cache of command objects + created by 'get_command_obj()'. + """ + for cmd in self.commands: + self.run_command(cmd) + + # -- Methods that operate on its Commands -------------------------- + + def run_command(self, command: str) -> None: + """Do whatever it takes to run a command (including nothing at all, + if the command has already been run). Specifically: if we have + already created and run the command named by 'command', return + silently without doing anything. If the command named by 'command' + doesn't even have a command object yet, create one. Then invoke + 'run()' on that command object (or an existing one). + """ + # Already been here, done that? then return silently. + if self.have_run.get(command): + return + + log.info("running %s", command) + cmd_obj = self.get_command_obj(command) + cmd_obj.ensure_finalized() + cmd_obj.run() + self.have_run[command] = True + + # -- Distribution query methods ------------------------------------ + + def has_pure_modules(self) -> bool: + return len(self.packages or self.py_modules or []) > 0 + + def has_ext_modules(self) -> bool: + return self.ext_modules and len(self.ext_modules) > 0 + + def has_c_libraries(self) -> bool: + return self.libraries and len(self.libraries) > 0 + + def has_modules(self) -> bool: + return self.has_pure_modules() or self.has_ext_modules() + + def has_headers(self) -> bool: + return self.headers and len(self.headers) > 0 + + def has_scripts(self) -> bool: + return self.scripts and len(self.scripts) > 0 + + def has_data_files(self) -> bool: + return self.data_files and len(self.data_files) > 0 + + def is_pure(self) -> bool: + return ( + self.has_pure_modules() + and not self.has_ext_modules() + and not self.has_c_libraries() + ) + + # -- Metadata query methods ---------------------------------------- + + # If you're looking for 'get_name()', 'get_version()', and so forth, + # they are defined in a sneaky way: the constructor binds self.get_XXX + # to self.metadata.get_XXX. The actual code is in the + # DistributionMetadata class, below. + if TYPE_CHECKING: + # Unfortunately this means we need to specify them manually or not expose statically + def _(self) -> None: + self.get_name = self.metadata.get_name + self.get_version = self.metadata.get_version + self.get_fullname = self.metadata.get_fullname + self.get_author = self.metadata.get_author + self.get_author_email = self.metadata.get_author_email + self.get_maintainer = self.metadata.get_maintainer + self.get_maintainer_email = self.metadata.get_maintainer_email + self.get_contact = self.metadata.get_contact + self.get_contact_email = self.metadata.get_contact_email + self.get_url = self.metadata.get_url + self.get_license = self.metadata.get_license + self.get_licence = self.metadata.get_licence + self.get_description = self.metadata.get_description + self.get_long_description = self.metadata.get_long_description + self.get_keywords = self.metadata.get_keywords + self.get_platforms = self.metadata.get_platforms + self.get_classifiers = self.metadata.get_classifiers + self.get_download_url = self.metadata.get_download_url + self.get_requires = self.metadata.get_requires + self.get_provides = self.metadata.get_provides + self.get_obsoletes = self.metadata.get_obsoletes + + # Default attributes generated in __init__ from self.display_option_names + help_commands: bool + name: str | Literal[False] + version: str | Literal[False] + fullname: str | Literal[False] + author: str | Literal[False] + author_email: str | Literal[False] + maintainer: str | Literal[False] + maintainer_email: str | Literal[False] + contact: str | Literal[False] + contact_email: str | Literal[False] + url: str | Literal[False] + license: str | Literal[False] + licence: str | Literal[False] + description: str | Literal[False] + long_description: str | Literal[False] + platforms: str | list[str] | Literal[False] + classifiers: str | list[str] | Literal[False] + keywords: str | list[str] | Literal[False] + provides: list[str] | Literal[False] + requires: list[str] | Literal[False] + obsoletes: list[str] | Literal[False] + + +class DistributionMetadata: + """Dummy class to hold the distribution meta-data: name, version, + author, and so forth. + """ + + _METHOD_BASENAMES = ( + "name", + "version", + "author", + "author_email", + "maintainer", + "maintainer_email", + "url", + "license", + "description", + "long_description", + "keywords", + "platforms", + "fullname", + "contact", + "contact_email", + "classifiers", + "download_url", + # PEP 314 + "provides", + "requires", + "obsoletes", + ) + + def __init__( + self, path: str | bytes | os.PathLike[str] | os.PathLike[bytes] | None = None + ) -> None: + if path is not None: + self.read_pkg_file(open(path)) + else: + self.name: str | None = None + self.version: str | None = None + self.author: str | None = None + self.author_email: str | None = None + self.maintainer: str | None = None + self.maintainer_email: str | None = None + self.url: str | None = None + self.license: str | None = None + self.description: str | None = None + self.long_description: str | None = None + self.keywords: str | list[str] | None = None + self.platforms: str | list[str] | None = None + self.classifiers: str | list[str] | None = None + self.download_url: str | None = None + # PEP 314 + self.provides: str | list[str] | None = None + self.requires: str | list[str] | None = None + self.obsoletes: str | list[str] | None = None + + def read_pkg_file(self, file: IO[str]) -> None: + """Reads the metadata values from a file object.""" + msg = message_from_file(file) + + def _read_field(name: str) -> str | None: + value = msg[name] + if value and value != "UNKNOWN": + return value + return None + + def _read_list(name): + values = msg.get_all(name, None) + if values == []: + return None + return values + + metadata_version = msg['metadata-version'] + self.name = _read_field('name') + self.version = _read_field('version') + self.description = _read_field('summary') + # we are filling author only. + self.author = _read_field('author') + self.maintainer = None + self.author_email = _read_field('author-email') + self.maintainer_email = None + self.url = _read_field('home-page') + self.license = _read_field('license') + + if 'download-url' in msg: + self.download_url = _read_field('download-url') + else: + self.download_url = None + + self.long_description = _read_field('description') + self.description = _read_field('summary') + + if 'keywords' in msg: + self.keywords = _read_field('keywords').split(',') + + self.platforms = _read_list('platform') + self.classifiers = _read_list('classifier') + + # PEP 314 - these fields only exist in 1.1 + if metadata_version == '1.1': + self.requires = _read_list('requires') + self.provides = _read_list('provides') + self.obsoletes = _read_list('obsoletes') + else: + self.requires = None + self.provides = None + self.obsoletes = None + + def write_pkg_info(self, base_dir: str | os.PathLike[str]) -> None: + """Write the PKG-INFO file into the release tree.""" + with open( + os.path.join(base_dir, 'PKG-INFO'), 'w', encoding='UTF-8' + ) as pkg_info: + self.write_pkg_file(pkg_info) + + def write_pkg_file(self, file: SupportsWrite[str]) -> None: + """Write the PKG-INFO format data to a file object.""" + version = '1.0' + if ( + self.provides + or self.requires + or self.obsoletes + or self.classifiers + or self.download_url + ): + version = '1.1' + + # required fields + file.write(f'Metadata-Version: {version}\n') + file.write(f'Name: {self.get_name()}\n') + file.write(f'Version: {self.get_version()}\n') + + def maybe_write(header, val): + if val: + file.write(f"{header}: {val}\n") + + # optional fields + maybe_write("Summary", self.get_description()) + maybe_write("Home-page", self.get_url()) + maybe_write("Author", self.get_contact()) + maybe_write("Author-email", self.get_contact_email()) + maybe_write("License", self.get_license()) + maybe_write("Download-URL", self.download_url) + maybe_write("Description", rfc822_escape(self.get_long_description() or "")) + maybe_write("Keywords", ",".join(self.get_keywords())) + + self._write_list(file, 'Platform', self.get_platforms()) + self._write_list(file, 'Classifier', self.get_classifiers()) + + # PEP 314 + self._write_list(file, 'Requires', self.get_requires()) + self._write_list(file, 'Provides', self.get_provides()) + self._write_list(file, 'Obsoletes', self.get_obsoletes()) + + def _write_list(self, file, name, values): + values = values or [] + for value in values: + file.write(f'{name}: {value}\n') + + # -- Metadata query methods ---------------------------------------- + + def get_name(self) -> str: + return self.name or "UNKNOWN" + + def get_version(self) -> str: + return self.version or "0.0.0" + + def get_fullname(self) -> str: + return self._fullname(self.get_name(), self.get_version()) + + @staticmethod + def _fullname(name: str, version: str) -> str: + """ + >>> DistributionMetadata._fullname('setup.tools', '1.0-2') + 'setup_tools-1.0.post2' + >>> DistributionMetadata._fullname('setup-tools', '1.2post2') + 'setup_tools-1.2.post2' + >>> DistributionMetadata._fullname('setup-tools', '1.0-r2') + 'setup_tools-1.0.post2' + >>> DistributionMetadata._fullname('setup.tools', '1.0.post') + 'setup_tools-1.0.post0' + >>> DistributionMetadata._fullname('setup.tools', '1.0+ubuntu-1') + 'setup_tools-1.0+ubuntu.1' + """ + return "{}-{}".format( + canonicalize_name(name).replace('-', '_'), + canonicalize_version(version, strip_trailing_zero=False), + ) + + def get_author(self) -> str | None: + return self.author + + def get_author_email(self) -> str | None: + return self.author_email + + def get_maintainer(self) -> str | None: + return self.maintainer + + def get_maintainer_email(self) -> str | None: + return self.maintainer_email + + def get_contact(self) -> str | None: + return self.maintainer or self.author + + def get_contact_email(self) -> str | None: + return self.maintainer_email or self.author_email + + def get_url(self) -> str | None: + return self.url + + def get_license(self) -> str | None: + return self.license + + get_licence = get_license + + def get_description(self) -> str | None: + return self.description + + def get_long_description(self) -> str | None: + return self.long_description + + def get_keywords(self) -> str | list[str]: + return self.keywords or [] + + def set_keywords(self, value: str | Iterable[str]) -> None: + self.keywords = _ensure_list(value, 'keywords') + + def get_platforms(self) -> str | list[str] | None: + return self.platforms + + def set_platforms(self, value: str | Iterable[str]) -> None: + self.platforms = _ensure_list(value, 'platforms') + + def get_classifiers(self) -> str | list[str]: + return self.classifiers or [] + + def set_classifiers(self, value: str | Iterable[str]) -> None: + self.classifiers = _ensure_list(value, 'classifiers') + + def get_download_url(self) -> str | None: + return self.download_url + + # PEP 314 + def get_requires(self) -> str | list[str]: + return self.requires or [] + + def set_requires(self, value: Iterable[str]) -> None: + import distutils.versionpredicate + + for v in value: + distutils.versionpredicate.VersionPredicate(v) + self.requires = list(value) + + def get_provides(self) -> str | list[str]: + return self.provides or [] + + def set_provides(self, value: Iterable[str]) -> None: + value = [v.strip() for v in value] + for v in value: + import distutils.versionpredicate + + distutils.versionpredicate.split_provision(v) + self.provides = value + + def get_obsoletes(self) -> str | list[str]: + return self.obsoletes or [] + + def set_obsoletes(self, value: Iterable[str]) -> None: + import distutils.versionpredicate + + for v in value: + distutils.versionpredicate.VersionPredicate(v) + self.obsoletes = list(value) + + +def fix_help_options(options): + """Convert a 4-tuple 'help_options' list as found in various command + classes to the 3-tuple form required by FancyGetopt. + """ + return [opt[0:3] for opt in options] diff --git a/setuptools/_distutils/errors.py b/setuptools/_distutils/errors.py new file mode 100644 index 0000000000..409d21faa2 --- /dev/null +++ b/setuptools/_distutils/errors.py @@ -0,0 +1,108 @@ +""" +Exceptions used by the Distutils modules. + +Distutils modules may raise these or standard exceptions, +including :exc:`SystemExit`. +""" + +# compiler exceptions aliased for compatibility +from .compilers.C.errors import CompileError as CompileError +from .compilers.C.errors import Error as _Error +from .compilers.C.errors import LibError as LibError +from .compilers.C.errors import LinkError as LinkError +from .compilers.C.errors import PreprocessError as PreprocessError +from .compilers.C.errors import UnknownFileType as _UnknownFileType + +CCompilerError = _Error +UnknownFileError = _UnknownFileType + + +class DistutilsError(Exception): + """The root of all Distutils evil.""" + + pass + + +class DistutilsModuleError(DistutilsError): + """Unable to load an expected module, or to find an expected class + within some module (in particular, command modules and classes).""" + + pass + + +class DistutilsClassError(DistutilsError): + """Some command class (or possibly distribution class, if anyone + feels a need to subclass Distribution) is found not to be holding + up its end of the bargain, ie. implementing some part of the + "command "interface.""" + + pass + + +class DistutilsGetoptError(DistutilsError): + """The option table provided to 'fancy_getopt()' is bogus.""" + + pass + + +class DistutilsArgError(DistutilsError): + """Raised by fancy_getopt in response to getopt.error -- ie. an + error in the command line usage.""" + + pass + + +class DistutilsFileError(DistutilsError): + """Any problems in the filesystem: expected file not found, etc. + Typically this is for problems that we detect before OSError + could be raised.""" + + pass + + +class DistutilsOptionError(DistutilsError): + """Syntactic/semantic errors in command options, such as use of + mutually conflicting options, or inconsistent options, + badly-spelled values, etc. No distinction is made between option + values originating in the setup script, the command line, config + files, or what-have-you -- but if we *know* something originated in + the setup script, we'll raise DistutilsSetupError instead.""" + + pass + + +class DistutilsSetupError(DistutilsError): + """For errors that can be definitely blamed on the setup script, + such as invalid keyword arguments to 'setup()'.""" + + pass + + +class DistutilsPlatformError(DistutilsError): + """We don't know how to do something on the current platform (but + we do know how to do it on some platform) -- eg. trying to compile + C files on a platform not supported by a CCompiler subclass.""" + + pass + + +class DistutilsExecError(DistutilsError): + """Any problems executing an external program (such as the C + compiler, when compiling C files).""" + + pass + + +class DistutilsInternalError(DistutilsError): + """Internal inconsistencies or impossibilities (obviously, this + should never be seen if the code is working!).""" + + pass + + +class DistutilsTemplateError(DistutilsError): + """Syntax error in a file list template.""" + + +class DistutilsByteCompileError(DistutilsError): + """Byte compile error.""" diff --git a/setuptools/_distutils/extension.py b/setuptools/_distutils/extension.py new file mode 100644 index 0000000000..f51411266e --- /dev/null +++ b/setuptools/_distutils/extension.py @@ -0,0 +1,258 @@ +"""distutils.extension + +Provides the Extension class, used to describe C/C++ extension +modules in setup scripts.""" + +from __future__ import annotations + +import os +import warnings +from collections.abc import Iterable + +# This class is really only used by the "build_ext" command, so it might +# make sense to put it in distutils.command.build_ext. However, that +# module is already big enough, and I want to make this class a bit more +# complex to simplify some common cases ("foo" module in "foo.c") and do +# better error-checking ("foo.c" actually exists). +# +# Also, putting this in build_ext.py means every setup script would have to +# import that large-ish module (indirectly, through distutils.core) in +# order to do anything. + + +class Extension: + """Just a collection of attributes that describes an extension + module and everything needed to build it (hopefully in a portable + way, but there are hooks that let you be as unportable as you need). + + Instance attributes: + name : string + the full name of the extension, including any packages -- ie. + *not* a filename or pathname, but Python dotted name + sources : Iterable[string | os.PathLike] + iterable of source filenames (except strings, which could be misinterpreted + as a single filename), relative to the distribution root (where the setup + script lives), in Unix form (slash-separated) for portability. Can be any + non-string iterable (list, tuple, set, etc.) containing strings or + PathLike objects. Source files may be C, C++, SWIG (.i), platform-specific + resource files, or whatever else is recognized by the "build_ext" command + as source for a Python extension. + include_dirs : [string] + list of directories to search for C/C++ header files (in Unix + form for portability) + define_macros : [(name : string, value : string|None)] + list of macros to define; each macro is defined using a 2-tuple, + where 'value' is either the string to define it to or None to + define it without a particular value (equivalent of "#define + FOO" in source or -DFOO on Unix C compiler command line) + undef_macros : [string] + list of macros to undefine explicitly + library_dirs : [string] + list of directories to search for C/C++ libraries at link time + libraries : [string] + list of library names (not filenames or paths) to link against + runtime_library_dirs : [string] + list of directories to search for C/C++ libraries at run time + (for shared extensions, this is when the extension is loaded) + extra_objects : [string] + list of extra files to link with (eg. object files not implied + by 'sources', static library that must be explicitly specified, + binary resource files, etc.) + extra_compile_args : [string] + any extra platform- and compiler-specific information to use + when compiling the source files in 'sources'. For platforms and + compilers where "command line" makes sense, this is typically a + list of command-line arguments, but for other platforms it could + be anything. + extra_link_args : [string] + any extra platform- and compiler-specific information to use + when linking object files together to create the extension (or + to create a new static Python interpreter). Similar + interpretation as for 'extra_compile_args'. + export_symbols : [string] + list of symbols to be exported from a shared extension. Not + used on all platforms, and not generally necessary for Python + extensions, which typically export exactly one symbol: "init" + + extension_name. + swig_opts : [string] + any extra options to pass to SWIG if a source file has the .i + extension. + depends : [string] + list of files that the extension depends on + language : string + extension language (i.e. "c", "c++", "objc"). Will be detected + from the source extensions if not provided. + optional : boolean + specifies that a build failure in the extension should not abort the + build process, but simply not install the failing extension. + """ + + # When adding arguments to this constructor, be sure to update + # setup_keywords in core.py. + def __init__( + self, + name: str, + sources: Iterable[str | os.PathLike[str]], + include_dirs: list[str] | None = None, + define_macros: list[tuple[str, str | None]] | None = None, + undef_macros: list[str] | None = None, + library_dirs: list[str] | None = None, + libraries: list[str] | None = None, + runtime_library_dirs: list[str] | None = None, + extra_objects: list[str] | None = None, + extra_compile_args: list[str] | None = None, + extra_link_args: list[str] | None = None, + export_symbols: list[str] | None = None, + swig_opts: list[str] | None = None, + depends: list[str] | None = None, + language: str | None = None, + optional: bool | None = None, + **kw, # To catch unknown keywords + ): + if not isinstance(name, str): + raise TypeError("'name' must be a string") + + # handle the string case first; since strings are iterable, disallow them + if isinstance(sources, str): + raise TypeError( + "'sources' must be an iterable of strings or PathLike objects, not a string" + ) + + # now we check if it's iterable and contains valid types + try: + self.sources = list(map(os.fspath, sources)) + except TypeError: + raise TypeError( + "'sources' must be an iterable of strings or PathLike objects" + ) + + self.name = name + self.include_dirs = include_dirs or [] + self.define_macros = define_macros or [] + self.undef_macros = undef_macros or [] + self.library_dirs = library_dirs or [] + self.libraries = libraries or [] + self.runtime_library_dirs = runtime_library_dirs or [] + self.extra_objects = extra_objects or [] + self.extra_compile_args = extra_compile_args or [] + self.extra_link_args = extra_link_args or [] + self.export_symbols = export_symbols or [] + self.swig_opts = swig_opts or [] + self.depends = depends or [] + self.language = language + self.optional = optional + + # If there are unknown keyword options, warn about them + if len(kw) > 0: + options = [repr(option) for option in kw] + options = ', '.join(sorted(options)) + msg = f"Unknown Extension options: {options}" + warnings.warn(msg) + + def __repr__(self): + return f'<{self.__class__.__module__}.{self.__class__.__qualname__}({self.name!r}) at {id(self):#x}>' + + +def read_setup_file(filename): # noqa: C901 + """Reads a Setup file and returns Extension instances.""" + from distutils.sysconfig import _variable_rx, expand_makefile_vars, parse_makefile + from distutils.text_file import TextFile + from distutils.util import split_quoted + + # First pass over the file to gather "VAR = VALUE" assignments. + vars = parse_makefile(filename) + + # Second pass to gobble up the real content: lines of the form + # ... [ ...] [ ...] [ ...] + file = TextFile( + filename, + strip_comments=True, + skip_blanks=True, + join_lines=True, + lstrip_ws=True, + rstrip_ws=True, + ) + try: + extensions = [] + + while True: + line = file.readline() + if line is None: # eof + break + if _variable_rx.match(line): # VAR=VALUE, handled in first pass + continue + + if line[0] == line[-1] == "*": + file.warn(f"'{line}' lines not handled yet") + continue + + line = expand_makefile_vars(line, vars) + words = split_quoted(line) + + # NB. this parses a slightly different syntax than the old + # makesetup script: here, there must be exactly one extension per + # line, and it must be the first word of the line. I have no idea + # why the old syntax supported multiple extensions per line, as + # they all wind up being the same. + + module = words[0] + ext = Extension(module, []) + append_next_word = None + + for word in words[1:]: + if append_next_word is not None: + append_next_word.append(word) + append_next_word = None + continue + + suffix = os.path.splitext(word)[1] + switch = word[0:2] + value = word[2:] + + if suffix in (".c", ".cc", ".cpp", ".cxx", ".c++", ".m", ".mm"): + # hmm, should we do something about C vs. C++ sources? + # or leave it up to the CCompiler implementation to + # worry about? + ext.sources.append(word) + elif switch == "-I": + ext.include_dirs.append(value) + elif switch == "-D": + equals = value.find("=") + if equals == -1: # bare "-DFOO" -- no value + ext.define_macros.append((value, None)) + else: # "-DFOO=blah" + ext.define_macros.append((value[0:equals], value[equals + 2 :])) + elif switch == "-U": + ext.undef_macros.append(value) + elif switch == "-C": # only here 'cause makesetup has it! + ext.extra_compile_args.append(word) + elif switch == "-l": + ext.libraries.append(value) + elif switch == "-L": + ext.library_dirs.append(value) + elif switch == "-R": + ext.runtime_library_dirs.append(value) + elif word == "-rpath": + append_next_word = ext.runtime_library_dirs + elif word == "-Xlinker": + append_next_word = ext.extra_link_args + elif word == "-Xcompiler": + append_next_word = ext.extra_compile_args + elif switch == "-u": + ext.extra_link_args.append(word) + if not value: + append_next_word = ext.extra_link_args + elif suffix in (".a", ".so", ".sl", ".o", ".dylib"): + # NB. a really faithful emulation of makesetup would + # append a .o file to extra_objects only if it + # had a slash in it; otherwise, it would s/.o/.c/ + # and append it to sources. Hmmmm. + ext.extra_objects.append(word) + else: + file.warn(f"unrecognized argument '{word}'") + + extensions.append(ext) + finally: + file.close() + + return extensions diff --git a/setuptools/_distutils/fancy_getopt.py b/setuptools/_distutils/fancy_getopt.py new file mode 100644 index 0000000000..1a1d3a05da --- /dev/null +++ b/setuptools/_distutils/fancy_getopt.py @@ -0,0 +1,471 @@ +"""distutils.fancy_getopt + +Wrapper around the standard getopt module that provides the following +additional features: + * short and long options are tied together + * options have help strings, so fancy_getopt could potentially + create a complete usage summary + * options set attributes of a passed-in object +""" + +from __future__ import annotations + +import getopt +import re +import string +import sys +from collections.abc import Sequence +from typing import Any + +from .errors import DistutilsArgError, DistutilsGetoptError + +# Much like command_re in distutils.core, this is close to but not quite +# the same as a Python NAME -- except, in the spirit of most GNU +# utilities, we use '-' in place of '_'. (The spirit of LISP lives on!) +# The similarities to NAME are again not a coincidence... +longopt_pat = r'[a-zA-Z](?:[a-zA-Z0-9-]*)' +longopt_re = re.compile(rf'^{longopt_pat}$') + +# For recognizing "negative alias" options, eg. "quiet=!verbose" +neg_alias_re = re.compile(f"^({longopt_pat})=!({longopt_pat})$") + +# This is used to translate long options to legitimate Python identifiers +# (for use as attributes of some object). +longopt_xlate = str.maketrans('-', '_') + + +class FancyGetopt: + """Wrapper around the standard 'getopt()' module that provides some + handy extra functionality: + * short and long options are tied together + * options have help strings, and help text can be assembled + from them + * options set attributes of a passed-in object + * boolean options can have "negative aliases" -- eg. if + --quiet is the "negative alias" of --verbose, then "--quiet" + on the command line sets 'verbose' to false + """ + + def __init__(self, option_table=None): + # The option table is (currently) a list of tuples. The + # tuples may have 3 or four values: + # (long_option, short_option, help_string [, repeatable]) + # if an option takes an argument, its long_option should have '=' + # appended; short_option should just be a single character, no ':' + # in any case. If a long_option doesn't have a corresponding + # short_option, short_option should be None. All option tuples + # must have long options. + self.option_table = option_table + + # 'option_index' maps long option names to entries in the option + # table (ie. those 3-tuples). + self.option_index = {} + if self.option_table: + self._build_index() + + # 'alias' records (duh) alias options; {'foo': 'bar'} means + # --foo is an alias for --bar + self.alias = {} + + # 'negative_alias' keeps track of options that are the boolean + # opposite of some other option + self.negative_alias = {} + + # These keep track of the information in the option table. We + # don't actually populate these structures until we're ready to + # parse the command-line, since the 'option_table' passed in here + # isn't necessarily the final word. + self.short_opts = [] + self.long_opts = [] + self.short2long = {} + self.attr_name = {} + self.takes_arg = {} + + # And 'option_order' is filled up in 'getopt()'; it records the + # original order of options (and their values) on the command-line, + # but expands short options, converts aliases, etc. + self.option_order = [] + + def _build_index(self): + self.option_index.clear() + for option in self.option_table: + self.option_index[option[0]] = option + + def set_option_table(self, option_table): + self.option_table = option_table + self._build_index() + + def add_option(self, long_option, short_option=None, help_string=None): + if long_option in self.option_index: + raise DistutilsGetoptError( + f"option conflict: already an option '{long_option}'" + ) + else: + option = (long_option, short_option, help_string) + self.option_table.append(option) + self.option_index[long_option] = option + + def has_option(self, long_option): + """Return true if the option table for this parser has an + option with long name 'long_option'.""" + return long_option in self.option_index + + def get_attr_name(self, long_option): + """Translate long option name 'long_option' to the form it + has as an attribute of some object: ie., translate hyphens + to underscores.""" + return long_option.translate(longopt_xlate) + + def _check_alias_dict(self, aliases, what): + assert isinstance(aliases, dict) + for alias, opt in aliases.items(): + if alias not in self.option_index: + raise DistutilsGetoptError( + f"invalid {what} '{alias}': option '{alias}' not defined" + ) + if opt not in self.option_index: + raise DistutilsGetoptError( + f"invalid {what} '{alias}': aliased option '{opt}' not defined" + ) + + def set_aliases(self, alias): + """Set the aliases for this option parser.""" + self._check_alias_dict(alias, "alias") + self.alias = alias + + def set_negative_aliases(self, negative_alias): + """Set the negative aliases for this option parser. + 'negative_alias' should be a dictionary mapping option names to + option names, both the key and value must already be defined + in the option table.""" + self._check_alias_dict(negative_alias, "negative alias") + self.negative_alias = negative_alias + + def _grok_option_table(self): # noqa: C901 + """Populate the various data structures that keep tabs on the + option table. Called by 'getopt()' before it can do anything + worthwhile. + """ + self.long_opts = [] + self.short_opts = [] + self.short2long.clear() + self.repeat = {} + + for option in self.option_table: + if len(option) == 3: + long, short, help = option + repeat = 0 + elif len(option) == 4: + long, short, help, repeat = option + else: + # the option table is part of the code, so simply + # assert that it is correct + raise ValueError(f"invalid option tuple: {option!r}") + + # Type- and value-check the option names + if not isinstance(long, str) or len(long) < 2: + raise DistutilsGetoptError( + f"invalid long option '{long}': must be a string of length >= 2" + ) + + if not ((short is None) or (isinstance(short, str) and len(short) == 1)): + raise DistutilsGetoptError( + f"invalid short option '{short}': must a single character or None" + ) + + self.repeat[long] = repeat + self.long_opts.append(long) + + if long[-1] == '=': # option takes an argument? + if short: + short = short + ':' + long = long[0:-1] + self.takes_arg[long] = True + else: + # Is option is a "negative alias" for some other option (eg. + # "quiet" == "!verbose")? + alias_to = self.negative_alias.get(long) + if alias_to is not None: + if self.takes_arg[alias_to]: + raise DistutilsGetoptError( + f"invalid negative alias '{long}': " + f"aliased option '{alias_to}' takes a value" + ) + + self.long_opts[-1] = long # XXX redundant?! + self.takes_arg[long] = False + + # If this is an alias option, make sure its "takes arg" flag is + # the same as the option it's aliased to. + alias_to = self.alias.get(long) + if alias_to is not None: + if self.takes_arg[long] != self.takes_arg[alias_to]: + raise DistutilsGetoptError( + f"invalid alias '{long}': inconsistent with " + f"aliased option '{alias_to}' (one of them takes a value, " + "the other doesn't" + ) + + # Now enforce some bondage on the long option name, so we can + # later translate it to an attribute name on some object. Have + # to do this a bit late to make sure we've removed any trailing + # '='. + if not longopt_re.match(long): + raise DistutilsGetoptError( + f"invalid long option name '{long}' " + "(must be letters, numbers, hyphens only" + ) + + self.attr_name[long] = self.get_attr_name(long) + if short: + self.short_opts.append(short) + self.short2long[short[0]] = long + + def getopt(self, args: Sequence[str] | None = None, object=None): # noqa: C901 + """Parse command-line options in args. Store as attributes on object. + + If 'args' is None or not supplied, uses 'sys.argv[1:]'. If + 'object' is None or not supplied, creates a new OptionDummy + object, stores option values there, and returns a tuple (args, + object). If 'object' is supplied, it is modified in place and + 'getopt()' just returns 'args'; in both cases, the returned + 'args' is a modified copy of the passed-in 'args' list, which + is left untouched. + """ + if args is None: + args = sys.argv[1:] + if object is None: + object = OptionDummy() + created_object = True + else: + created_object = False + + self._grok_option_table() + + short_opts = ' '.join(self.short_opts) + try: + opts, args = getopt.getopt(args, short_opts, self.long_opts) + except getopt.error as msg: + raise DistutilsArgError(msg) + + for opt, val in opts: + if len(opt) == 2 and opt[0] == '-': # it's a short option + opt = self.short2long[opt[1]] + else: + assert len(opt) > 2 and opt[:2] == '--' + opt = opt[2:] + + alias = self.alias.get(opt) + if alias: + opt = alias + + if not self.takes_arg[opt]: # boolean option? + assert val == '', "boolean option can't have value" + alias = self.negative_alias.get(opt) + if alias: + opt = alias + val = 0 + else: + val = 1 + + attr = self.attr_name[opt] + # The only repeating option at the moment is 'verbose'. + # It has a negative option -q quiet, which should set verbose = False. + if val and self.repeat.get(attr) is not None: + val = getattr(object, attr, 0) + 1 + setattr(object, attr, val) + self.option_order.append((opt, val)) + + # for opts + if created_object: + return args, object + else: + return args + + def get_option_order(self): + """Returns the list of (option, value) tuples processed by the + previous run of 'getopt()'. Raises RuntimeError if + 'getopt()' hasn't been called yet. + """ + if self.option_order is None: + raise RuntimeError("'getopt()' hasn't been called yet") + else: + return self.option_order + + def generate_help(self, header=None): # noqa: C901 + """Generate help text (a list of strings, one per suggested line of + output) from the option table for this FancyGetopt object. + """ + # Blithely assume the option table is good: probably wouldn't call + # 'generate_help()' unless you've already called 'getopt()'. + + # First pass: determine maximum length of long option names + max_opt = 0 + for option in self.option_table: + long = option[0] + short = option[1] + ell = len(long) + if long[-1] == '=': + ell = ell - 1 + if short is not None: + ell = ell + 5 # " (-x)" where short == 'x' + if ell > max_opt: + max_opt = ell + + opt_width = max_opt + 2 + 2 + 2 # room for indent + dashes + gutter + + # Typical help block looks like this: + # --foo controls foonabulation + # Help block for longest option looks like this: + # --flimflam set the flim-flam level + # and with wrapped text: + # --flimflam set the flim-flam level (must be between + # 0 and 100, except on Tuesdays) + # Options with short names will have the short name shown (but + # it doesn't contribute to max_opt): + # --foo (-f) controls foonabulation + # If adding the short option would make the left column too wide, + # we push the explanation off to the next line + # --flimflam (-l) + # set the flim-flam level + # Important parameters: + # - 2 spaces before option block start lines + # - 2 dashes for each long option name + # - min. 2 spaces between option and explanation (gutter) + # - 5 characters (incl. space) for short option name + + # Now generate lines of help text. (If 80 columns were good enough + # for Jesus, then 78 columns are good enough for me!) + line_width = 78 + text_width = line_width - opt_width + big_indent = ' ' * opt_width + if header: + lines = [header] + else: + lines = ['Option summary:'] + + for option in self.option_table: + long, short, help = option[:3] + text = wrap_text(help, text_width) + if long[-1] == '=': + long = long[0:-1] + + # Case 1: no short option at all (makes life easy) + if short is None: + if text: + lines.append(f" --{long:<{max_opt}} {text[0]}") + else: + lines.append(f" --{long:<{max_opt}}") + + # Case 2: we have a short option, so we have to include it + # just after the long option + else: + opt_names = f"{long} (-{short})" + if text: + lines.append(f" --{opt_names:<{max_opt}} {text[0]}") + else: + lines.append(f" --{opt_names:<{max_opt}}") + + for ell in text[1:]: + lines.append(big_indent + ell) + return lines + + def print_help(self, header=None, file=None): + if file is None: + file = sys.stdout + for line in self.generate_help(header): + file.write(line + "\n") + + +def fancy_getopt(options, negative_opt, object, args: Sequence[str] | None): + parser = FancyGetopt(options) + parser.set_negative_aliases(negative_opt) + return parser.getopt(args, object) + + +WS_TRANS = {ord(_wschar): ' ' for _wschar in string.whitespace} + + +def wrap_text(text, width): + """wrap_text(text : string, width : int) -> [string] + + Split 'text' into multiple lines of no more than 'width' characters + each, and return the list of strings that results. + """ + if text is None: + return [] + if len(text) <= width: + return [text] + + text = text.expandtabs() + text = text.translate(WS_TRANS) + chunks = re.split(r'( +|-+)', text) + chunks = [ch for ch in chunks if ch] # ' - ' results in empty strings + lines = [] + + while chunks: + cur_line = [] # list of chunks (to-be-joined) + cur_len = 0 # length of current line + + while chunks: + ell = len(chunks[0]) + if cur_len + ell <= width: # can squeeze (at least) this chunk in + cur_line.append(chunks[0]) + del chunks[0] + cur_len = cur_len + ell + else: # this line is full + # drop last chunk if all space + if cur_line and cur_line[-1][0] == ' ': + del cur_line[-1] + break + + if chunks: # any chunks left to process? + # if the current line is still empty, then we had a single + # chunk that's too big too fit on a line -- so we break + # down and break it up at the line width + if cur_len == 0: + cur_line.append(chunks[0][0:width]) + chunks[0] = chunks[0][width:] + + # all-whitespace chunks at the end of a line can be discarded + # (and we know from the re.split above that if a chunk has + # *any* whitespace, it is *all* whitespace) + if chunks[0][0] == ' ': + del chunks[0] + + # and store this line in the list-of-all-lines -- as a single + # string, of course! + lines.append(''.join(cur_line)) + + return lines + + +def translate_longopt(opt): + """Convert a long option name to a valid Python identifier by + changing "-" to "_". + """ + return opt.translate(longopt_xlate) + + +class OptionDummy: + """Dummy class just used as a place to hold command-line option + values as instance attributes.""" + + def __init__(self, options: Sequence[Any] = []): + """Create a new OptionDummy instance. The attributes listed in + 'options' will be initialized to None.""" + for opt in options: + setattr(self, opt, None) + + +if __name__ == "__main__": + text = """\ +Tra-la-la, supercalifragilisticexpialidocious. +How *do* you spell that odd word, anyways? +(Someone ask Mary -- she'll know [or she'll +say, "How should I know?"].)""" + + for w in (10, 20, 30, 40): + print(f"width: {w}") + print("\n".join(wrap_text(text, w))) + print() diff --git a/setuptools/_distutils/file_util.py b/setuptools/_distutils/file_util.py new file mode 100644 index 0000000000..0acc8cb84b --- /dev/null +++ b/setuptools/_distutils/file_util.py @@ -0,0 +1,236 @@ +"""distutils.file_util + +Utility functions for operating on single files. +""" + +import os + +from ._log import log +from .errors import DistutilsFileError + +# for generating verbose output in 'copy_file()' +_copy_action = {None: 'copying', 'hard': 'hard linking', 'sym': 'symbolically linking'} + + +def _copy_file_contents(src, dst, buffer_size=16 * 1024): # noqa: C901 + """Copy the file 'src' to 'dst'; both must be filenames. Any error + opening either file, reading from 'src', or writing to 'dst', raises + DistutilsFileError. Data is read/written in chunks of 'buffer_size' + bytes (default 16k). No attempt is made to handle anything apart from + regular files. + """ + # Stolen from shutil module in the standard library, but with + # custom error-handling added. + fsrc = None + fdst = None + try: + try: + fsrc = open(src, 'rb') + except OSError as e: + raise DistutilsFileError(f"could not open '{src}': {e.strerror}") + + if os.path.exists(dst): + try: + os.unlink(dst) + except OSError as e: + raise DistutilsFileError(f"could not delete '{dst}': {e.strerror}") + + try: + fdst = open(dst, 'wb') + except OSError as e: + raise DistutilsFileError(f"could not create '{dst}': {e.strerror}") + + while True: + try: + buf = fsrc.read(buffer_size) + except OSError as e: + raise DistutilsFileError(f"could not read from '{src}': {e.strerror}") + + if not buf: + break + + try: + fdst.write(buf) + except OSError as e: + raise DistutilsFileError(f"could not write to '{dst}': {e.strerror}") + finally: + if fdst: + fdst.close() + if fsrc: + fsrc.close() + + +def copy_file( # noqa: C901 + src, + dst, + preserve_mode=True, + preserve_times=True, + update=False, + link=None, + verbose=True, + dry_run=False, +): + """Copy a file 'src' to 'dst'. If 'dst' is a directory, then 'src' is + copied there with the same name; otherwise, it must be a filename. (If + the file exists, it will be ruthlessly clobbered.) If 'preserve_mode' + is true (the default), the file's mode (type and permission bits, or + whatever is analogous on the current platform) is copied. If + 'preserve_times' is true (the default), the last-modified and + last-access times are copied as well. If 'update' is true, 'src' will + only be copied if 'dst' does not exist, or if 'dst' does exist but is + older than 'src'. + + 'link' allows you to make hard links (os.link) or symbolic links + (os.symlink) instead of copying: set it to "hard" or "sym"; if it is + None (the default), files are copied. Don't set 'link' on systems that + don't support it: 'copy_file()' doesn't check if hard or symbolic + linking is available. If hardlink fails, falls back to + _copy_file_contents(). + + Under Mac OS, uses the native file copy function in macostools; on + other systems, uses '_copy_file_contents()' to copy file contents. + + Return a tuple (dest_name, copied): 'dest_name' is the actual name of + the output file, and 'copied' is true if the file was copied (or would + have been copied, if 'dry_run' true). + """ + # XXX if the destination file already exists, we clobber it if + # copying, but blow up if linking. Hmmm. And I don't know what + # macostools.copyfile() does. Should definitely be consistent, and + # should probably blow up if destination exists and we would be + # changing it (ie. it's not already a hard/soft link to src OR + # (not update) and (src newer than dst). + + from distutils._modified import newer + from stat import S_IMODE, ST_ATIME, ST_MODE, ST_MTIME + + if not os.path.isfile(src): + raise DistutilsFileError( + f"can't copy '{src}': doesn't exist or not a regular file" + ) + + if os.path.isdir(dst): + dir = dst + dst = os.path.join(dst, os.path.basename(src)) + else: + dir = os.path.dirname(dst) + + if update and not newer(src, dst): + if verbose >= 1: + log.debug("not copying %s (output up-to-date)", src) + return (dst, False) + + try: + action = _copy_action[link] + except KeyError: + raise ValueError(f"invalid value '{link}' for 'link' argument") + + if verbose >= 1: + if os.path.basename(dst) == os.path.basename(src): + log.info("%s %s -> %s", action, src, dir) + else: + log.info("%s %s -> %s", action, src, dst) + + if dry_run: + return (dst, True) + + # If linking (hard or symbolic), use the appropriate system call + # (Unix only, of course, but that's the caller's responsibility) + elif link == 'hard': + if not (os.path.exists(dst) and os.path.samefile(src, dst)): + try: + os.link(src, dst) + except OSError: + # If hard linking fails, fall back on copying file + # (some special filesystems don't support hard linking + # even under Unix, see issue #8876). + pass + else: + return (dst, True) + elif link == 'sym': + if not (os.path.exists(dst) and os.path.samefile(src, dst)): + os.symlink(src, dst) + return (dst, True) + + # Otherwise (non-Mac, not linking), copy the file contents and + # (optionally) copy the times and mode. + _copy_file_contents(src, dst) + if preserve_mode or preserve_times: + st = os.stat(src) + + # According to David Ascher , utime() should be done + # before chmod() (at least under NT). + if preserve_times: + os.utime(dst, (st[ST_ATIME], st[ST_MTIME])) + if preserve_mode: + os.chmod(dst, S_IMODE(st[ST_MODE])) + + return (dst, True) + + +# XXX I suspect this is Unix-specific -- need porting help! +def move_file(src, dst, verbose=True, dry_run=False): # noqa: C901 + """Move a file 'src' to 'dst'. If 'dst' is a directory, the file will + be moved into it with the same name; otherwise, 'src' is just renamed + to 'dst'. Return the new full name of the file. + + Handles cross-device moves on Unix using 'copy_file()'. What about + other systems??? + """ + import errno + from os.path import basename, dirname, exists, isdir, isfile + + if verbose >= 1: + log.info("moving %s -> %s", src, dst) + + if dry_run: + return dst + + if not isfile(src): + raise DistutilsFileError(f"can't move '{src}': not a regular file") + + if isdir(dst): + dst = os.path.join(dst, basename(src)) + elif exists(dst): + raise DistutilsFileError( + f"can't move '{src}': destination '{dst}' already exists" + ) + + if not isdir(dirname(dst)): + raise DistutilsFileError( + f"can't move '{src}': destination '{dst}' not a valid path" + ) + + copy_it = False + try: + os.rename(src, dst) + except OSError as e: + (num, msg) = e.args + if num == errno.EXDEV: + copy_it = True + else: + raise DistutilsFileError(f"couldn't move '{src}' to '{dst}': {msg}") + + if copy_it: + copy_file(src, dst, verbose=verbose) + try: + os.unlink(src) + except OSError as e: + (num, msg) = e.args + try: + os.unlink(dst) + except OSError: + pass + raise DistutilsFileError( + f"couldn't move '{src}' to '{dst}' by copy/delete: " + f"delete '{src}' failed: {msg}" + ) + return dst + + +def write_file(filename, contents): + """Create a file with the specified name and write 'contents' (a + sequence of strings without line terminators) to it. + """ + with open(filename, 'w', encoding='utf-8') as f: + f.writelines(line + '\n' for line in contents) diff --git a/setuptools/_distutils/filelist.py b/setuptools/_distutils/filelist.py new file mode 100644 index 0000000000..70dc0fdebc --- /dev/null +++ b/setuptools/_distutils/filelist.py @@ -0,0 +1,431 @@ +"""distutils.filelist + +Provides the FileList class, used for poking about the filesystem +and building lists of files. +""" + +from __future__ import annotations + +import fnmatch +import functools +import os +import re +from collections.abc import Iterable +from typing import Literal, overload + +from ._log import log +from .errors import DistutilsInternalError, DistutilsTemplateError +from .util import convert_path + + +class FileList: + """A list of files built by on exploring the filesystem and filtered by + applying various patterns to what we find there. + + Instance attributes: + dir + directory from which files will be taken -- only used if + 'allfiles' not supplied to constructor + files + list of filenames currently being built/filtered/manipulated + allfiles + complete list of files under consideration (ie. without any + filtering applied) + """ + + def __init__(self, warn: object = None, debug_print: object = None) -> None: + # ignore argument to FileList, but keep them for backwards + # compatibility + self.allfiles: Iterable[str] | None = None + self.files: list[str] = [] + + def set_allfiles(self, allfiles: Iterable[str]) -> None: + self.allfiles = allfiles + + def findall(self, dir: str | os.PathLike[str] = os.curdir) -> None: + self.allfiles = findall(dir) + + def debug_print(self, msg: object) -> None: + """Print 'msg' to stdout if the global DEBUG (taken from the + DISTUTILS_DEBUG environment variable) flag is true. + """ + from distutils.debug import DEBUG + + if DEBUG: + print(msg) + + # Collection methods + + def append(self, item: str) -> None: + self.files.append(item) + + def extend(self, items: Iterable[str]) -> None: + self.files.extend(items) + + def sort(self) -> None: + # Not a strict lexical sort! + sortable_files = sorted(map(os.path.split, self.files)) + self.files = [] + for sort_tuple in sortable_files: + self.files.append(os.path.join(*sort_tuple)) + + # Other miscellaneous utility methods + + def remove_duplicates(self) -> None: + # Assumes list has been sorted! + for i in range(len(self.files) - 1, 0, -1): + if self.files[i] == self.files[i - 1]: + del self.files[i] + + # "File template" methods + + def _parse_template_line(self, line): + words = line.split() + action = words[0] + + patterns = dir = dir_pattern = None + + if action in ('include', 'exclude', 'global-include', 'global-exclude'): + if len(words) < 2: + raise DistutilsTemplateError( + f"'{action}' expects ..." + ) + patterns = [convert_path(w) for w in words[1:]] + elif action in ('recursive-include', 'recursive-exclude'): + if len(words) < 3: + raise DistutilsTemplateError( + f"'{action}' expects ..." + ) + dir = convert_path(words[1]) + patterns = [convert_path(w) for w in words[2:]] + elif action in ('graft', 'prune'): + if len(words) != 2: + raise DistutilsTemplateError( + f"'{action}' expects a single " + ) + dir_pattern = convert_path(words[1]) + else: + raise DistutilsTemplateError(f"unknown action '{action}'") + + return (action, patterns, dir, dir_pattern) + + def process_template_line(self, line: str) -> None: # noqa: C901 + # Parse the line: split it up, make sure the right number of words + # is there, and return the relevant words. 'action' is always + # defined: it's the first word of the line. Which of the other + # three are defined depends on the action; it'll be either + # patterns, (dir and patterns), or (dir_pattern). + (action, patterns, dir, dir_pattern) = self._parse_template_line(line) + + # OK, now we know that the action is valid and we have the + # right number of words on the line for that action -- so we + # can proceed with minimal error-checking. + if action == 'include': + self.debug_print("include " + ' '.join(patterns)) + for pattern in patterns: + if not self.include_pattern(pattern, anchor=True): + log.warning("warning: no files found matching '%s'", pattern) + + elif action == 'exclude': + self.debug_print("exclude " + ' '.join(patterns)) + for pattern in patterns: + if not self.exclude_pattern(pattern, anchor=True): + log.warning( + "warning: no previously-included files found matching '%s'", + pattern, + ) + + elif action == 'global-include': + self.debug_print("global-include " + ' '.join(patterns)) + for pattern in patterns: + if not self.include_pattern(pattern, anchor=False): + log.warning( + ( + "warning: no files found matching '%s' " + "anywhere in distribution" + ), + pattern, + ) + + elif action == 'global-exclude': + self.debug_print("global-exclude " + ' '.join(patterns)) + for pattern in patterns: + if not self.exclude_pattern(pattern, anchor=False): + log.warning( + ( + "warning: no previously-included files matching " + "'%s' found anywhere in distribution" + ), + pattern, + ) + + elif action == 'recursive-include': + self.debug_print("recursive-include {} {}".format(dir, ' '.join(patterns))) + for pattern in patterns: + if not self.include_pattern(pattern, prefix=dir): + msg = "warning: no files found matching '%s' under directory '%s'" + log.warning(msg, pattern, dir) + + elif action == 'recursive-exclude': + self.debug_print("recursive-exclude {} {}".format(dir, ' '.join(patterns))) + for pattern in patterns: + if not self.exclude_pattern(pattern, prefix=dir): + log.warning( + ( + "warning: no previously-included files matching " + "'%s' found under directory '%s'" + ), + pattern, + dir, + ) + + elif action == 'graft': + self.debug_print("graft " + dir_pattern) + if not self.include_pattern(None, prefix=dir_pattern): + log.warning("warning: no directories found matching '%s'", dir_pattern) + + elif action == 'prune': + self.debug_print("prune " + dir_pattern) + if not self.exclude_pattern(None, prefix=dir_pattern): + log.warning( + ("no previously-included directories found matching '%s'"), + dir_pattern, + ) + else: + raise DistutilsInternalError( + f"this cannot happen: invalid action '{action}'" + ) + + # Filtering/selection methods + @overload + def include_pattern( + self, + pattern: str, + anchor: bool = True, + prefix: str | None = None, + is_regex: Literal[False] = False, + ) -> bool: ... + @overload + def include_pattern( + self, + pattern: str | re.Pattern[str], + anchor: bool = True, + prefix: str | None = None, + *, + is_regex: Literal[True], + ) -> bool: ... + @overload + def include_pattern( + self, + pattern: str | re.Pattern[str], + anchor: bool, + prefix: str | None, + is_regex: Literal[True], + ) -> bool: ... + def include_pattern( + self, + pattern: str | re.Pattern, + anchor: bool = True, + prefix: str | None = None, + is_regex: bool = False, + ) -> bool: + """Select strings (presumably filenames) from 'self.files' that + match 'pattern', a Unix-style wildcard (glob) pattern. Patterns + are not quite the same as implemented by the 'fnmatch' module: '*' + and '?' match non-special characters, where "special" is platform- + dependent: slash on Unix; colon, slash, and backslash on + DOS/Windows; and colon on Mac OS. + + If 'anchor' is true (the default), then the pattern match is more + stringent: "*.py" will match "foo.py" but not "foo/bar.py". If + 'anchor' is false, both of these will match. + + If 'prefix' is supplied, then only filenames starting with 'prefix' + (itself a pattern) and ending with 'pattern', with anything in between + them, will match. 'anchor' is ignored in this case. + + If 'is_regex' is true, 'anchor' and 'prefix' are ignored, and + 'pattern' is assumed to be either a string containing a regex or a + regex object -- no translation is done, the regex is just compiled + and used as-is. + + Selected strings will be added to self.files. + + Return True if files are found, False otherwise. + """ + # XXX docstring lying about what the special chars are? + files_found = False + pattern_re = translate_pattern(pattern, anchor, prefix, is_regex) + self.debug_print(f"include_pattern: applying regex r'{pattern_re.pattern}'") + + # delayed loading of allfiles list + if self.allfiles is None: + self.findall() + + for name in self.allfiles: + if pattern_re.search(name): + self.debug_print(" adding " + name) + self.files.append(name) + files_found = True + return files_found + + @overload + def exclude_pattern( + self, + pattern: str, + anchor: bool = True, + prefix: str | None = None, + is_regex: Literal[False] = False, + ) -> bool: ... + @overload + def exclude_pattern( + self, + pattern: str | re.Pattern[str], + anchor: bool = True, + prefix: str | None = None, + *, + is_regex: Literal[True], + ) -> bool: ... + @overload + def exclude_pattern( + self, + pattern: str | re.Pattern[str], + anchor: bool, + prefix: str | None, + is_regex: Literal[True], + ) -> bool: ... + def exclude_pattern( + self, + pattern: str | re.Pattern, + anchor: bool = True, + prefix: str | None = None, + is_regex: bool = False, + ) -> bool: + """Remove strings (presumably filenames) from 'files' that match + 'pattern'. Other parameters are the same as for + 'include_pattern()', above. + The list 'self.files' is modified in place. + Return True if files are found, False otherwise. + """ + files_found = False + pattern_re = translate_pattern(pattern, anchor, prefix, is_regex) + self.debug_print(f"exclude_pattern: applying regex r'{pattern_re.pattern}'") + for i in range(len(self.files) - 1, -1, -1): + if pattern_re.search(self.files[i]): + self.debug_print(" removing " + self.files[i]) + del self.files[i] + files_found = True + return files_found + + +# Utility functions + + +def _find_all_simple(path): + """ + Find all files under 'path' + """ + all_unique = _UniqueDirs.filter(os.walk(path, followlinks=True)) + results = ( + os.path.join(base, file) for base, dirs, files in all_unique for file in files + ) + return filter(os.path.isfile, results) + + +class _UniqueDirs(set): + """ + Exclude previously-seen dirs from walk results, + avoiding infinite recursion. + Ref https://bugs.python.org/issue44497. + """ + + def __call__(self, walk_item): + """ + Given an item from an os.walk result, determine + if the item represents a unique dir for this instance + and if not, prevent further traversal. + """ + base, dirs, files = walk_item + stat = os.stat(base) + candidate = stat.st_dev, stat.st_ino + found = candidate in self + if found: + del dirs[:] + self.add(candidate) + return not found + + @classmethod + def filter(cls, items): + return filter(cls(), items) + + +def findall(dir: str | os.PathLike[str] = os.curdir): + """ + Find all files under 'dir' and return the list of full filenames. + Unless dir is '.', return full filenames with dir prepended. + """ + files = _find_all_simple(dir) + if dir == os.curdir: + make_rel = functools.partial(os.path.relpath, start=dir) + files = map(make_rel, files) + return list(files) + + +def glob_to_re(pattern): + """Translate a shell-like glob pattern to a regular expression; return + a string containing the regex. Differs from 'fnmatch.translate()' in + that '*' does not match "special characters" (which are + platform-specific). + """ + pattern_re = fnmatch.translate(pattern) + + # '?' and '*' in the glob pattern become '.' and '.*' in the RE, which + # IMHO is wrong -- '?' and '*' aren't supposed to match slash in Unix, + # and by extension they shouldn't match such "special characters" under + # any OS. So change all non-escaped dots in the RE to match any + # character except the special characters (currently: just os.sep). + sep = os.sep + if os.sep == '\\': + # we're using a regex to manipulate a regex, so we need + # to escape the backslash twice + sep = r'\\\\' + escaped = rf'\1[^{sep}]' + pattern_re = re.sub(r'((?= 2: + set_threshold(logging.DEBUG) + + +class Log(logging.Logger): + """distutils.log.Log is deprecated, please use an alternative from `logging`.""" + + def __init__(self, threshold=WARN): + warnings.warn(Log.__doc__) # avoid DeprecationWarning to ensure warn is shown + super().__init__(__name__, level=threshold) + + @property + def threshold(self): + return self.level + + @threshold.setter + def threshold(self, level): + self.setLevel(level) + + warn = logging.Logger.warning diff --git a/setuptools/_distutils/ruff.toml b/setuptools/_distutils/ruff.toml new file mode 100644 index 0000000000..00fee625a5 --- /dev/null +++ b/setuptools/_distutils/ruff.toml @@ -0,0 +1 @@ +exclude = ["*"] diff --git a/setuptools/_distutils/spawn.py b/setuptools/_distutils/spawn.py new file mode 100644 index 0000000000..973668f268 --- /dev/null +++ b/setuptools/_distutils/spawn.py @@ -0,0 +1,134 @@ +"""distutils.spawn + +Provides the 'spawn()' function, a front-end to various platform- +specific functions for launching another program in a sub-process. +""" + +from __future__ import annotations + +import os +import platform +import shutil +import subprocess +import sys +import warnings +from collections.abc import Mapping, MutableSequence +from typing import TYPE_CHECKING, TypeVar, overload + +from ._log import log +from .debug import DEBUG +from .errors import DistutilsExecError + +if TYPE_CHECKING: + from subprocess import _ENV + + +_MappingT = TypeVar("_MappingT", bound=Mapping) + + +def _debug(cmd): + """ + Render a subprocess command differently depending on DEBUG. + """ + return cmd if DEBUG else cmd[0] + + +def _inject_macos_ver(env: _MappingT | None) -> _MappingT | dict[str, str | int] | None: + if platform.system() != 'Darwin': + return env + + from .util import MACOSX_VERSION_VAR, get_macosx_target_ver + + target_ver = get_macosx_target_ver() + update = {MACOSX_VERSION_VAR: target_ver} if target_ver else {} + return {**_resolve(env), **update} + + +@overload +def _resolve(env: None) -> os._Environ[str]: ... +@overload +def _resolve(env: _MappingT) -> _MappingT: ... +def _resolve(env: _MappingT | None) -> _MappingT | os._Environ[str]: + return os.environ if env is None else env + + +def spawn( + cmd: MutableSequence[bytes | str | os.PathLike[str]], + search_path: bool = True, + verbose: bool = False, + dry_run: bool = False, + env: _ENV | None = None, +) -> None: + """Run another program, specified as a command list 'cmd', in a new process. + + 'cmd' is just the argument list for the new process, ie. + cmd[0] is the program to run and cmd[1:] are the rest of its arguments. + There is no way to run a program with a name different from that of its + executable. + + If 'search_path' is true (the default), the system's executable + search path will be used to find the program; otherwise, cmd[0] + must be the exact path to the executable. If 'dry_run' is true, + the command will not actually be run. + + Raise DistutilsExecError if running the program fails in any way; just + return on success. + """ + log.info(subprocess.list2cmdline(cmd)) + if dry_run: + return + + if search_path: + executable = shutil.which(cmd[0]) + if executable is not None: + cmd[0] = executable + + try: + subprocess.check_call(cmd, env=_inject_macos_ver(env)) + except OSError as exc: + raise DistutilsExecError( + f"command {_debug(cmd)!r} failed: {exc.args[-1]}" + ) from exc + except subprocess.CalledProcessError as err: + raise DistutilsExecError( + f"command {_debug(cmd)!r} failed with exit code {err.returncode}" + ) from err + + +def find_executable(executable: str, path: str | None = None) -> str | None: + """Tries to find 'executable' in the directories listed in 'path'. + + A string listing directories separated by 'os.pathsep'; defaults to + os.environ['PATH']. Returns the complete filename or None if not found. + """ + warnings.warn( + 'Use shutil.which instead of find_executable', DeprecationWarning, stacklevel=2 + ) + _, ext = os.path.splitext(executable) + if (sys.platform == 'win32') and (ext != '.exe'): + executable = executable + '.exe' + + if os.path.isfile(executable): + return executable + + if path is None: + path = os.environ.get('PATH', None) + # bpo-35755: Don't fall through if PATH is the empty string + if path is None: + try: + path = os.confstr("CS_PATH") + except (AttributeError, ValueError): + # os.confstr() or CS_PATH is not available + path = os.defpath + + # PATH='' doesn't match, whereas PATH=':' looks in the current directory + if not path: + return None + + paths = path.split(os.pathsep) + for p in paths: + f = os.path.join(p, executable) + if os.path.isfile(f): + # the file exists, we have a shot at spawn working + return f + return None diff --git a/setuptools/_distutils/sysconfig.py b/setuptools/_distutils/sysconfig.py new file mode 100644 index 0000000000..7ddc869ab5 --- /dev/null +++ b/setuptools/_distutils/sysconfig.py @@ -0,0 +1,598 @@ +"""Provide access to Python's configuration information. The specific +configuration variables available depend heavily on the platform and +configuration. The values may be retrieved using +get_config_var(name), and the list of variables is available via +get_config_vars().keys(). Additional convenience functions are also +available. + +Written by: Fred L. Drake, Jr. +Email: +""" + +from __future__ import annotations + +import functools +import os +import pathlib +import re +import sys +import sysconfig +from typing import TYPE_CHECKING, Literal, overload + +from jaraco.functools import pass_none + +from .ccompiler import CCompiler +from .compat import py39 +from .errors import DistutilsPlatformError +from .util import is_mingw + +if TYPE_CHECKING: + from typing_extensions import deprecated +else: + + def deprecated(message): + return lambda fn: fn + + +IS_PYPY = '__pypy__' in sys.builtin_module_names + +# These are needed in a couple of spots, so just compute them once. +PREFIX = os.path.normpath(sys.prefix) +EXEC_PREFIX = os.path.normpath(sys.exec_prefix) +BASE_PREFIX = os.path.normpath(sys.base_prefix) +BASE_EXEC_PREFIX = os.path.normpath(sys.base_exec_prefix) + +# Path to the base directory of the project. On Windows the binary may +# live in project/PCbuild/win32 or project/PCbuild/amd64. +# set for cross builds +if "_PYTHON_PROJECT_BASE" in os.environ: + project_base = os.path.abspath(os.environ["_PYTHON_PROJECT_BASE"]) +else: + if sys.executable: + project_base = os.path.dirname(os.path.abspath(sys.executable)) + else: + # sys.executable can be empty if argv[0] has been changed and Python is + # unable to retrieve the real program name + project_base = os.getcwd() + + +def _is_python_source_dir(d): + """ + Return True if the target directory appears to point to an + un-installed Python. + """ + modules = pathlib.Path(d).joinpath('Modules') + return any(modules.joinpath(fn).is_file() for fn in ('Setup', 'Setup.local')) + + +_sys_home = getattr(sys, '_home', None) + + +def _is_parent(dir_a, dir_b): + """ + Return True if a is a parent of b. + """ + return os.path.normcase(dir_a).startswith(os.path.normcase(dir_b)) + + +if os.name == 'nt': + + @pass_none + def _fix_pcbuild(d): + # In a venv, sys._home will be inside BASE_PREFIX rather than PREFIX. + prefixes = PREFIX, BASE_PREFIX + matched = ( + prefix + for prefix in prefixes + if _is_parent(d, os.path.join(prefix, "PCbuild")) + ) + return next(matched, d) + + project_base = _fix_pcbuild(project_base) + _sys_home = _fix_pcbuild(_sys_home) + + +def _python_build(): + if _sys_home: + return _is_python_source_dir(_sys_home) + return _is_python_source_dir(project_base) + + +python_build = _python_build() + + +# Calculate the build qualifier flags if they are defined. Adding the flags +# to the include and lib directories only makes sense for an installation, not +# an in-source build. +build_flags = '' +try: + if not python_build: + build_flags = sys.abiflags +except AttributeError: + # It's not a configure-based build, so the sys module doesn't have + # this attribute, which is fine. + pass + + +def get_python_version(): + """Return a string containing the major and minor Python version, + leaving off the patchlevel. Sample return values could be '1.5' + or '2.2'. + """ + return f'{sys.version_info.major}.{sys.version_info.minor}' + + +def get_python_inc(plat_specific: bool = False, prefix: str | None = None) -> str: + """Return the directory containing installed Python header files. + + If 'plat_specific' is false (the default), this is the path to the + non-platform-specific header files, i.e. Python.h and so on; + otherwise, this is the path to platform-specific header files + (namely pyconfig.h). + + If 'prefix' is supplied, use it instead of sys.base_prefix or + sys.base_exec_prefix -- i.e., ignore 'plat_specific'. + """ + default_prefix = BASE_EXEC_PREFIX if plat_specific else BASE_PREFIX + resolved_prefix = prefix if prefix is not None else default_prefix + # MinGW imitates posix like layout, but os.name != posix + os_name = "posix" if is_mingw() else os.name + try: + getter = globals()[f'_get_python_inc_{os_name}'] + except KeyError: + raise DistutilsPlatformError( + "I don't know where Python installs its C header files " + f"on platform '{os.name}'" + ) + return getter(resolved_prefix, prefix, plat_specific) + + +@pass_none +def _extant(path): + """ + Replace path with None if it doesn't exist. + """ + return path if os.path.exists(path) else None + + +def _get_python_inc_posix(prefix, spec_prefix, plat_specific): + return ( + _get_python_inc_posix_python(plat_specific) + or _extant(_get_python_inc_from_config(plat_specific, spec_prefix)) + or _get_python_inc_posix_prefix(prefix) + ) + + +def _get_python_inc_posix_python(plat_specific): + """ + Assume the executable is in the build directory. The + pyconfig.h file should be in the same directory. Since + the build directory may not be the source directory, + use "srcdir" from the makefile to find the "Include" + directory. + """ + if not python_build: + return + if plat_specific: + return _sys_home or project_base + incdir = os.path.join(get_config_var('srcdir'), 'Include') + return os.path.normpath(incdir) + + +def _get_python_inc_from_config(plat_specific, spec_prefix): + """ + If no prefix was explicitly specified, provide the include + directory from the config vars. Useful when + cross-compiling, since the config vars may come from + the host + platform Python installation, while the current Python + executable is from the build platform installation. + + >>> monkeypatch = getfixture('monkeypatch') + >>> gpifc = _get_python_inc_from_config + >>> monkeypatch.setitem(gpifc.__globals__, 'get_config_var', str.lower) + >>> gpifc(False, '/usr/bin/') + >>> gpifc(False, '') + >>> gpifc(False, None) + 'includepy' + >>> gpifc(True, None) + 'confincludepy' + """ + if spec_prefix is None: + return get_config_var('CONF' * plat_specific + 'INCLUDEPY') + + +def _get_python_inc_posix_prefix(prefix): + implementation = 'pypy' if IS_PYPY else 'python' + python_dir = implementation + get_python_version() + build_flags + return os.path.join(prefix, "include", python_dir) + + +def _get_python_inc_nt(prefix, spec_prefix, plat_specific): + if python_build: + # Include both include dirs to ensure we can find pyconfig.h + return ( + os.path.join(prefix, "include") + + os.path.pathsep + + os.path.dirname(sysconfig.get_config_h_filename()) + ) + return os.path.join(prefix, "include") + + +# allow this behavior to be monkey-patched. Ref pypa/distutils#2. +def _posix_lib(standard_lib, libpython, early_prefix, prefix): + if standard_lib: + return libpython + else: + return os.path.join(libpython, "site-packages") + + +def get_python_lib( + plat_specific: bool = False, standard_lib: bool = False, prefix: str | None = None +) -> str: + """Return the directory containing the Python library (standard or + site additions). + + If 'plat_specific' is true, return the directory containing + platform-specific modules, i.e. any module from a non-pure-Python + module distribution; otherwise, return the platform-shared library + directory. If 'standard_lib' is true, return the directory + containing standard Python library modules; otherwise, return the + directory for site-specific modules. + + If 'prefix' is supplied, use it instead of sys.base_prefix or + sys.base_exec_prefix -- i.e., ignore 'plat_specific'. + """ + + early_prefix = prefix + + if prefix is None: + if standard_lib: + prefix = plat_specific and BASE_EXEC_PREFIX or BASE_PREFIX + else: + prefix = plat_specific and EXEC_PREFIX or PREFIX + + if os.name == "posix" or is_mingw(): + if plat_specific or standard_lib: + # Platform-specific modules (any module from a non-pure-Python + # module distribution) or standard Python library modules. + libdir = getattr(sys, "platlibdir", "lib") + else: + # Pure Python + libdir = "lib" + implementation = 'pypy' if IS_PYPY else 'python' + libpython = os.path.join(prefix, libdir, implementation + get_python_version()) + return _posix_lib(standard_lib, libpython, early_prefix, prefix) + elif os.name == "nt": + if standard_lib: + return os.path.join(prefix, "Lib") + else: + return os.path.join(prefix, "Lib", "site-packages") + else: + raise DistutilsPlatformError( + f"I don't know where Python installs its library on platform '{os.name}'" + ) + + +@functools.lru_cache +def _customize_macos(): + """ + Perform first-time customization of compiler-related + config vars on macOS. Use after a compiler is known + to be needed. This customization exists primarily to support Pythons + from binary installers. The kind and paths to build tools on + the user system may vary significantly from the system + that Python itself was built on. Also the user OS + version and build tools may not support the same set + of CPU architectures for universal builds. + """ + + sys.platform == "darwin" and __import__('_osx_support').customize_compiler( + get_config_vars() + ) + + +def customize_compiler(compiler: CCompiler) -> None: + """Do any platform-specific customization of a CCompiler instance. + + Mainly needed on Unix, so we can plug in the information that + varies across Unices and is stored in Python's Makefile. + """ + if compiler.compiler_type in ["unix", "cygwin"] or ( + compiler.compiler_type == "mingw32" and is_mingw() + ): + _customize_macos() + + ( + cc, + cxx, + cflags, + ccshared, + ldshared, + ldcxxshared, + shlib_suffix, + ar, + ar_flags, + ) = get_config_vars( + 'CC', + 'CXX', + 'CFLAGS', + 'CCSHARED', + 'LDSHARED', + 'LDCXXSHARED', + 'SHLIB_SUFFIX', + 'AR', + 'ARFLAGS', + ) + + cxxflags = cflags + + if 'CC' in os.environ: + newcc = os.environ['CC'] + if 'LDSHARED' not in os.environ and ldshared.startswith(cc): + # If CC is overridden, use that as the default + # command for LDSHARED as well + ldshared = newcc + ldshared[len(cc) :] + cc = newcc + cxx = os.environ.get('CXX', cxx) + ldshared = os.environ.get('LDSHARED', ldshared) + ldcxxshared = os.environ.get('LDCXXSHARED', ldcxxshared) + cpp = os.environ.get( + 'CPP', + cc + " -E", # not always + ) + + ldshared = _add_flags(ldshared, 'LD') + ldcxxshared = _add_flags(ldcxxshared, 'LD') + cflags = os.environ.get('CFLAGS', cflags) + ldshared = _add_flags(ldshared, 'C') + cxxflags = os.environ.get('CXXFLAGS', cxxflags) + ldcxxshared = _add_flags(ldcxxshared, 'CXX') + cpp = _add_flags(cpp, 'CPP') + cflags = _add_flags(cflags, 'CPP') + cxxflags = _add_flags(cxxflags, 'CPP') + ldshared = _add_flags(ldshared, 'CPP') + ldcxxshared = _add_flags(ldcxxshared, 'CPP') + + ar = os.environ.get('AR', ar) + + archiver = ar + ' ' + os.environ.get('ARFLAGS', ar_flags) + cc_cmd = cc + ' ' + cflags + cxx_cmd = cxx + ' ' + cxxflags + + compiler.set_executables( + preprocessor=cpp, + compiler=cc_cmd, + compiler_so=cc_cmd + ' ' + ccshared, + compiler_cxx=cxx_cmd, + compiler_so_cxx=cxx_cmd + ' ' + ccshared, + linker_so=ldshared, + linker_so_cxx=ldcxxshared, + linker_exe=cc, + linker_exe_cxx=cxx, + archiver=archiver, + ) + + if 'RANLIB' in os.environ and compiler.executables.get('ranlib', None): + compiler.set_executables(ranlib=os.environ['RANLIB']) + + compiler.shared_lib_extension = shlib_suffix + + +def get_config_h_filename() -> str: + """Return full pathname of installed pyconfig.h file.""" + return sysconfig.get_config_h_filename() + + +def get_makefile_filename() -> str: + """Return full pathname of installed Makefile from the Python build.""" + return sysconfig.get_makefile_filename() + + +def parse_config_h(fp, g=None): + """Parse a config.h-style file. + + A dictionary containing name/value pairs is returned. If an + optional dictionary is passed in as the second argument, it is + used instead of a new dictionary. + """ + return sysconfig.parse_config_h(fp, vars=g) + + +# Regexes needed for parsing Makefile (and similar syntaxes, +# like old-style Setup files). +_variable_rx = re.compile(r"([a-zA-Z][a-zA-Z0-9_]+)\s*=\s*(.*)") +_findvar1_rx = re.compile(r"\$\(([A-Za-z][A-Za-z0-9_]*)\)") +_findvar2_rx = re.compile(r"\${([A-Za-z][A-Za-z0-9_]*)}") + + +def parse_makefile(fn, g=None): # noqa: C901 + """Parse a Makefile-style file. + + A dictionary containing name/value pairs is returned. If an + optional dictionary is passed in as the second argument, it is + used instead of a new dictionary. + """ + from distutils.text_file import TextFile + + fp = TextFile( + fn, + strip_comments=True, + skip_blanks=True, + join_lines=True, + errors="surrogateescape", + ) + + if g is None: + g = {} + done = {} + notdone = {} + + while True: + line = fp.readline() + if line is None: # eof + break + m = _variable_rx.match(line) + if m: + n, v = m.group(1, 2) + v = v.strip() + # `$$' is a literal `$' in make + tmpv = v.replace('$$', '') + + if "$" in tmpv: + notdone[n] = v + else: + try: + v = int(v) + except ValueError: + # insert literal `$' + done[n] = v.replace('$$', '$') + else: + done[n] = v + + # Variables with a 'PY_' prefix in the makefile. These need to + # be made available without that prefix through sysconfig. + # Special care is needed to ensure that variable expansion works, even + # if the expansion uses the name without a prefix. + renamed_variables = ('CFLAGS', 'LDFLAGS', 'CPPFLAGS') + + # do variable interpolation here + while notdone: + for name in list(notdone): + value = notdone[name] + m = _findvar1_rx.search(value) or _findvar2_rx.search(value) + if m: + n = m.group(1) + found = True + if n in done: + item = str(done[n]) + elif n in notdone: + # get it on a subsequent round + found = False + elif n in os.environ: + # do it like make: fall back to environment + item = os.environ[n] + + elif n in renamed_variables: + if name.startswith('PY_') and name[3:] in renamed_variables: + item = "" + + elif 'PY_' + n in notdone: + found = False + + else: + item = str(done['PY_' + n]) + else: + done[n] = item = "" + if found: + after = value[m.end() :] + value = value[: m.start()] + item + after + if "$" in after: + notdone[name] = value + else: + try: + value = int(value) + except ValueError: + done[name] = value.strip() + else: + done[name] = value + del notdone[name] + + if name.startswith('PY_') and name[3:] in renamed_variables: + name = name[3:] + if name not in done: + done[name] = value + else: + # bogus variable reference; just drop it since we can't deal + del notdone[name] + + fp.close() + + # strip spurious spaces + for k, v in done.items(): + if isinstance(v, str): + done[k] = v.strip() + + # save the results in the global dictionary + g.update(done) + return g + + +def expand_makefile_vars(s, vars): + """Expand Makefile-style variables -- "${foo}" or "$(foo)" -- in + 'string' according to 'vars' (a dictionary mapping variable names to + values). Variables not present in 'vars' are silently expanded to the + empty string. The variable values in 'vars' should not contain further + variable expansions; if 'vars' is the output of 'parse_makefile()', + you're fine. Returns a variable-expanded version of 's'. + """ + + # This algorithm does multiple expansion, so if vars['foo'] contains + # "${bar}", it will expand ${foo} to ${bar}, and then expand + # ${bar}... and so forth. This is fine as long as 'vars' comes from + # 'parse_makefile()', which takes care of such expansions eagerly, + # according to make's variable expansion semantics. + + while True: + m = _findvar1_rx.search(s) or _findvar2_rx.search(s) + if m: + (beg, end) = m.span() + s = s[0:beg] + vars.get(m.group(1)) + s[end:] + else: + break + return s + + +_config_vars = None + + +@overload +def get_config_vars() -> dict[str, str | int]: ... +@overload +def get_config_vars(arg: str, /, *args: str) -> list[str | int]: ... +def get_config_vars(*args: str) -> list[str | int] | dict[str, str | int]: + """With no arguments, return a dictionary of all configuration + variables relevant for the current platform. Generally this includes + everything needed to build extensions and install both pure modules and + extensions. On Unix, this means every variable defined in Python's + installed Makefile; on Windows it's a much smaller set. + + With arguments, return a list of values that result from looking up + each argument in the configuration variable dictionary. + """ + global _config_vars + if _config_vars is None: + _config_vars = sysconfig.get_config_vars().copy() + py39.add_ext_suffix(_config_vars) + + return [_config_vars.get(name) for name in args] if args else _config_vars + + +@overload +@deprecated( + "SO is deprecated, use EXT_SUFFIX. Support will be removed when this module is synchronized with stdlib Python 3.11" +) +def get_config_var(name: Literal["SO"]) -> int | str | None: ... +@overload +def get_config_var(name: str) -> int | str | None: ... +def get_config_var(name: str) -> int | str | None: + """Return the value of a single variable using the dictionary + returned by 'get_config_vars()'. Equivalent to + get_config_vars().get(name) + """ + if name == 'SO': + import warnings + + warnings.warn('SO is deprecated, use EXT_SUFFIX', DeprecationWarning, 2) + return get_config_vars().get(name) + + +@pass_none +def _add_flags(value: str, type: str) -> str: + """ + Add any flags from the environment for the given type. + + type is the prefix to FLAGS in the environment key (e.g. "C" for "CFLAGS"). + """ + flags = os.environ.get(f'{type}FLAGS') + return f'{value} {flags}' if flags else value diff --git a/setuptools/_distutils/tests/Setup.sample b/setuptools/_distutils/tests/Setup.sample new file mode 100644 index 0000000000..36c4290d8f --- /dev/null +++ b/setuptools/_distutils/tests/Setup.sample @@ -0,0 +1,67 @@ +# Setup file from the pygame project + +#--StartConfig +SDL = -I/usr/include/SDL -D_REENTRANT -lSDL +FONT = -lSDL_ttf +IMAGE = -lSDL_image +MIXER = -lSDL_mixer +SMPEG = -lsmpeg +PNG = -lpng +JPEG = -ljpeg +SCRAP = -lX11 +PORTMIDI = -lportmidi +PORTTIME = -lporttime +#--EndConfig + +#DEBUG = -C-W -C-Wall +DEBUG = + +#the following modules are optional. you will want to compile +#everything you can, but you can ignore ones you don't have +#dependencies for, just comment them out + +imageext src/imageext.c $(SDL) $(IMAGE) $(PNG) $(JPEG) $(DEBUG) +font src/font.c $(SDL) $(FONT) $(DEBUG) +mixer src/mixer.c $(SDL) $(MIXER) $(DEBUG) +mixer_music src/music.c $(SDL) $(MIXER) $(DEBUG) +_numericsurfarray src/_numericsurfarray.c $(SDL) $(DEBUG) +_numericsndarray src/_numericsndarray.c $(SDL) $(MIXER) $(DEBUG) +movie src/movie.c $(SDL) $(SMPEG) $(DEBUG) +scrap src/scrap.c $(SDL) $(SCRAP) $(DEBUG) +_camera src/_camera.c src/camera_v4l2.c src/camera_v4l.c $(SDL) $(DEBUG) +pypm src/pypm.c $(SDL) $(PORTMIDI) $(PORTTIME) $(DEBUG) + +GFX = src/SDL_gfx/SDL_gfxPrimitives.c +#GFX = src/SDL_gfx/SDL_gfxBlitFunc.c src/SDL_gfx/SDL_gfxPrimitives.c +gfxdraw src/gfxdraw.c $(SDL) $(GFX) $(DEBUG) + + + +#these modules are required for pygame to run. they only require +#SDL as a dependency. these should not be altered + +base src/base.c $(SDL) $(DEBUG) +cdrom src/cdrom.c $(SDL) $(DEBUG) +color src/color.c $(SDL) $(DEBUG) +constants src/constants.c $(SDL) $(DEBUG) +display src/display.c $(SDL) $(DEBUG) +event src/event.c $(SDL) $(DEBUG) +fastevent src/fastevent.c src/fastevents.c $(SDL) $(DEBUG) +key src/key.c $(SDL) $(DEBUG) +mouse src/mouse.c $(SDL) $(DEBUG) +rect src/rect.c $(SDL) $(DEBUG) +rwobject src/rwobject.c $(SDL) $(DEBUG) +surface src/surface.c src/alphablit.c src/surface_fill.c $(SDL) $(DEBUG) +surflock src/surflock.c $(SDL) $(DEBUG) +time src/time.c $(SDL) $(DEBUG) +joystick src/joystick.c $(SDL) $(DEBUG) +draw src/draw.c $(SDL) $(DEBUG) +image src/image.c $(SDL) $(DEBUG) +overlay src/overlay.c $(SDL) $(DEBUG) +transform src/transform.c src/rotozoom.c src/scale2x.c src/scale_mmx.c $(SDL) $(DEBUG) +mask src/mask.c src/bitmask.c $(SDL) $(DEBUG) +bufferproxy src/bufferproxy.c $(SDL) $(DEBUG) +pixelarray src/pixelarray.c $(SDL) $(DEBUG) +_arraysurfarray src/_arraysurfarray.c $(SDL) $(DEBUG) + + diff --git a/setuptools/_distutils/tests/__init__.py b/setuptools/_distutils/tests/__init__.py new file mode 100644 index 0000000000..5a8ab06100 --- /dev/null +++ b/setuptools/_distutils/tests/__init__.py @@ -0,0 +1,42 @@ +""" +Test suite for distutils. + +Tests for the command classes in the distutils.command package are +included in distutils.tests as well, instead of using a separate +distutils.command.tests package, since command identification is done +by import rather than matching pre-defined names. +""" + +import shutil +from collections.abc import Sequence + + +def missing_compiler_executable(cmd_names: Sequence[str] = []): # pragma: no cover + """Check if the compiler components used to build the interpreter exist. + + Check for the existence of the compiler executables whose names are listed + in 'cmd_names' or all the compiler executables when 'cmd_names' is empty + and return the first missing executable or None when none is found + missing. + + """ + from distutils import ccompiler, errors, sysconfig + + compiler = ccompiler.new_compiler() + sysconfig.customize_compiler(compiler) + if compiler.compiler_type == "msvc": + # MSVC has no executables, so check whether initialization succeeds + try: + compiler.initialize() + except errors.DistutilsPlatformError: + return "msvc" + for name in compiler.executables: + if cmd_names and name not in cmd_names: + continue + cmd = getattr(compiler, name) + if cmd_names: + assert cmd is not None, f"the '{name}' executable is not configured" + elif not cmd: + continue + if shutil.which(cmd[0]) is None: + return cmd[0] diff --git a/setuptools/_distutils/tests/compat/__init__.py b/setuptools/_distutils/tests/compat/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/setuptools/_distutils/tests/compat/py39.py b/setuptools/_distutils/tests/compat/py39.py new file mode 100644 index 0000000000..aca3939a0c --- /dev/null +++ b/setuptools/_distutils/tests/compat/py39.py @@ -0,0 +1,40 @@ +import sys + +if sys.version_info >= (3, 10): + from test.support.import_helper import ( + CleanImport as CleanImport, + ) + from test.support.import_helper import ( + DirsOnSysPath as DirsOnSysPath, + ) + from test.support.os_helper import ( + EnvironmentVarGuard as EnvironmentVarGuard, + ) + from test.support.os_helper import ( + rmtree as rmtree, + ) + from test.support.os_helper import ( + skip_unless_symlink as skip_unless_symlink, + ) + from test.support.os_helper import ( + unlink as unlink, + ) +else: + from test.support import ( + CleanImport as CleanImport, + ) + from test.support import ( + DirsOnSysPath as DirsOnSysPath, + ) + from test.support import ( + EnvironmentVarGuard as EnvironmentVarGuard, + ) + from test.support import ( + rmtree as rmtree, + ) + from test.support import ( + skip_unless_symlink as skip_unless_symlink, + ) + from test.support import ( + unlink as unlink, + ) diff --git a/setuptools/_distutils/tests/includetest.rst b/setuptools/_distutils/tests/includetest.rst new file mode 100644 index 0000000000..d7b4ae38b0 --- /dev/null +++ b/setuptools/_distutils/tests/includetest.rst @@ -0,0 +1 @@ +This should be included. diff --git a/setuptools/_distutils/tests/support.py b/setuptools/_distutils/tests/support.py new file mode 100644 index 0000000000..9cd2b8a9ee --- /dev/null +++ b/setuptools/_distutils/tests/support.py @@ -0,0 +1,134 @@ +"""Support code for distutils test cases.""" + +import itertools +import os +import pathlib +import shutil +import sys +import sysconfig +import tempfile +from distutils.core import Distribution + +import pytest +from more_itertools import always_iterable + + +@pytest.mark.usefixtures('distutils_managed_tempdir') +class TempdirManager: + """ + Mix-in class that handles temporary directories for test cases. + """ + + def mkdtemp(self): + """Create a temporary directory that will be cleaned up. + + Returns the path of the directory. + """ + d = tempfile.mkdtemp() + self.tempdirs.append(d) + return d + + def write_file(self, path, content='xxx'): + """Writes a file in the given path. + + path can be a string or a sequence. + """ + pathlib.Path(*always_iterable(path)).write_text(content, encoding='utf-8') + + def create_dist(self, pkg_name='foo', **kw): + """Will generate a test environment. + + This function creates: + - a Distribution instance using keywords + - a temporary directory with a package structure + + It returns the package directory and the distribution + instance. + """ + tmp_dir = self.mkdtemp() + pkg_dir = os.path.join(tmp_dir, pkg_name) + os.mkdir(pkg_dir) + dist = Distribution(attrs=kw) + + return pkg_dir, dist + + +class DummyCommand: + """Class to store options for retrieval via set_undefined_options().""" + + def __init__(self, **kwargs): + vars(self).update(kwargs) + + def ensure_finalized(self): + pass + + +def copy_xxmodule_c(directory): + """Helper for tests that need the xxmodule.c source file. + + Example use: + + def test_compile(self): + copy_xxmodule_c(self.tmpdir) + self.assertIn('xxmodule.c', os.listdir(self.tmpdir)) + + If the source file can be found, it will be copied to *directory*. If not, + the test will be skipped. Errors during copy are not caught. + """ + shutil.copy(_get_xxmodule_path(), os.path.join(directory, 'xxmodule.c')) + + +def _get_xxmodule_path(): + source_name = 'xxmodule.c' if sys.version_info > (3, 9) else 'xxmodule-3.8.c' + return os.path.join(os.path.dirname(__file__), source_name) + + +def fixup_build_ext(cmd): + """Function needed to make build_ext tests pass. + + When Python was built with --enable-shared on Unix, -L. is not enough to + find libpython.so, because regrtest runs in a tempdir, not in the + source directory where the .so lives. + + When Python was built with in debug mode on Windows, build_ext commands + need their debug attribute set, and it is not done automatically for + some reason. + + This function handles both of these things. Example use: + + cmd = build_ext(dist) + support.fixup_build_ext(cmd) + cmd.ensure_finalized() + + Unlike most other Unix platforms, Mac OS X embeds absolute paths + to shared libraries into executables, so the fixup is not needed there. + """ + if os.name == 'nt': + cmd.debug = sys.executable.endswith('_d.exe') + elif sysconfig.get_config_var('Py_ENABLE_SHARED'): + # To further add to the shared builds fun on Unix, we can't just add + # library_dirs to the Extension() instance because that doesn't get + # plumbed through to the final compiler command. + runshared = sysconfig.get_config_var('RUNSHARED') + if runshared is None: + cmd.library_dirs = ['.'] + else: + if sys.platform == 'darwin': + cmd.library_dirs = [] + else: + name, equals, value = runshared.partition('=') + cmd.library_dirs = [d for d in value.split(os.pathsep) if d] + + +def combine_markers(cls): + """ + pytest will honor markers as found on the class, but when + markers are on multiple subclasses, only one appears. Use + this decorator to combine those markers. + """ + cls.pytestmark = [ + mark + for base in itertools.chain([cls], cls.__bases__) + for mark in getattr(base, 'pytestmark', []) + ] + return cls diff --git a/setuptools/_distutils/tests/test_archive_util.py b/setuptools/_distutils/tests/test_archive_util.py new file mode 100644 index 0000000000..3e4ed75a76 --- /dev/null +++ b/setuptools/_distutils/tests/test_archive_util.py @@ -0,0 +1,353 @@ +"""Tests for distutils.archive_util.""" + +import functools +import operator +import os +import pathlib +import sys +import tarfile +from distutils import archive_util +from distutils.archive_util import ( + ARCHIVE_FORMATS, + check_archive_formats, + make_archive, + make_tarball, + make_zipfile, +) +from distutils.spawn import spawn +from distutils.tests import support +from os.path import splitdrive + +import path +import pytest +from test.support import patch + +from .unix_compat import UID_0_SUPPORT, grp, pwd, require_uid_0, require_unix_id + + +def can_fs_encode(filename): + """ + Return True if the filename can be saved in the file system. + """ + if os.path.supports_unicode_filenames: + return True + try: + filename.encode(sys.getfilesystemencoding()) + except UnicodeEncodeError: + return False + return True + + +def all_equal(values): + return functools.reduce(operator.eq, values) + + +def same_drive(*paths): + return all_equal(pathlib.Path(path).drive for path in paths) + + +class ArchiveUtilTestCase(support.TempdirManager): + @pytest.mark.usefixtures('needs_zlib') + def test_make_tarball(self, name='archive'): + # creating something to tar + tmpdir = self._create_files() + self._make_tarball(tmpdir, name, '.tar.gz') + # trying an uncompressed one + self._make_tarball(tmpdir, name, '.tar', compress=None) + + @pytest.mark.usefixtures('needs_zlib') + def test_make_tarball_gzip(self): + tmpdir = self._create_files() + self._make_tarball(tmpdir, 'archive', '.tar.gz', compress='gzip') + + def test_make_tarball_bzip2(self): + pytest.importorskip('bz2') + tmpdir = self._create_files() + self._make_tarball(tmpdir, 'archive', '.tar.bz2', compress='bzip2') + + def test_make_tarball_xz(self): + pytest.importorskip('lzma') + tmpdir = self._create_files() + self._make_tarball(tmpdir, 'archive', '.tar.xz', compress='xz') + + @pytest.mark.skipif("not can_fs_encode('årchiv')") + def test_make_tarball_latin1(self): + """ + Mirror test_make_tarball, except filename contains latin characters. + """ + self.test_make_tarball('årchiv') # note this isn't a real word + + @pytest.mark.skipif("not can_fs_encode('のアーカイブ')") + def test_make_tarball_extended(self): + """ + Mirror test_make_tarball, except filename contains extended + characters outside the latin charset. + """ + self.test_make_tarball('のアーカイブ') # japanese for archive + + def _make_tarball(self, tmpdir, target_name, suffix, **kwargs): + tmpdir2 = self.mkdtemp() + if same_drive(tmpdir, tmpdir2): + pytest.skip("source and target should be on same drive") + + base_name = os.path.join(tmpdir2, target_name) + + # working with relative paths to avoid tar warnings + with path.Path(tmpdir): + make_tarball(splitdrive(base_name)[1], 'dist', **kwargs) + + # check if the compressed tarball was created + tarball = base_name + suffix + assert os.path.exists(tarball) + assert self._tarinfo(tarball) == self._created_files + + def _tarinfo(self, path): + tar = tarfile.open(path) + try: + names = tar.getnames() + names.sort() + return names + finally: + tar.close() + + _zip_created_files = [ + 'dist/', + 'dist/file1', + 'dist/file2', + 'dist/sub/', + 'dist/sub/file3', + 'dist/sub2/', + ] + _created_files = [p.rstrip('/') for p in _zip_created_files] + + def _create_files(self): + # creating something to tar + tmpdir = self.mkdtemp() + dist = os.path.join(tmpdir, 'dist') + os.mkdir(dist) + self.write_file([dist, 'file1'], 'xxx') + self.write_file([dist, 'file2'], 'xxx') + os.mkdir(os.path.join(dist, 'sub')) + self.write_file([dist, 'sub', 'file3'], 'xxx') + os.mkdir(os.path.join(dist, 'sub2')) + return tmpdir + + @pytest.mark.usefixtures('needs_zlib') + @pytest.mark.skipif("not (shutil.which('tar') and shutil.which('gzip'))") + def test_tarfile_vs_tar(self): + tmpdir = self._create_files() + tmpdir2 = self.mkdtemp() + base_name = os.path.join(tmpdir2, 'archive') + old_dir = os.getcwd() + os.chdir(tmpdir) + try: + make_tarball(base_name, 'dist') + finally: + os.chdir(old_dir) + + # check if the compressed tarball was created + tarball = base_name + '.tar.gz' + assert os.path.exists(tarball) + + # now create another tarball using `tar` + tarball2 = os.path.join(tmpdir, 'archive2.tar.gz') + tar_cmd = ['tar', '-cf', 'archive2.tar', 'dist'] + gzip_cmd = ['gzip', '-f', '-9', 'archive2.tar'] + old_dir = os.getcwd() + os.chdir(tmpdir) + try: + spawn(tar_cmd) + spawn(gzip_cmd) + finally: + os.chdir(old_dir) + + assert os.path.exists(tarball2) + # let's compare both tarballs + assert self._tarinfo(tarball) == self._created_files + assert self._tarinfo(tarball2) == self._created_files + + # trying an uncompressed one + base_name = os.path.join(tmpdir2, 'archive') + old_dir = os.getcwd() + os.chdir(tmpdir) + try: + make_tarball(base_name, 'dist', compress=None) + finally: + os.chdir(old_dir) + tarball = base_name + '.tar' + assert os.path.exists(tarball) + + # now for a dry_run + base_name = os.path.join(tmpdir2, 'archive') + old_dir = os.getcwd() + os.chdir(tmpdir) + try: + make_tarball(base_name, 'dist', compress=None, dry_run=True) + finally: + os.chdir(old_dir) + tarball = base_name + '.tar' + assert os.path.exists(tarball) + + @pytest.mark.usefixtures('needs_zlib') + def test_make_zipfile(self): + zipfile = pytest.importorskip('zipfile') + # creating something to tar + tmpdir = self._create_files() + base_name = os.path.join(self.mkdtemp(), 'archive') + with path.Path(tmpdir): + make_zipfile(base_name, 'dist') + + # check if the compressed tarball was created + tarball = base_name + '.zip' + assert os.path.exists(tarball) + with zipfile.ZipFile(tarball) as zf: + assert sorted(zf.namelist()) == self._zip_created_files + + def test_make_zipfile_no_zlib(self): + zipfile = pytest.importorskip('zipfile') + patch(self, archive_util.zipfile, 'zlib', None) # force zlib ImportError + + called = [] + zipfile_class = zipfile.ZipFile + + def fake_zipfile(*a, **kw): + if kw.get('compression', None) == zipfile.ZIP_STORED: + called.append((a, kw)) + return zipfile_class(*a, **kw) + + patch(self, archive_util.zipfile, 'ZipFile', fake_zipfile) + + # create something to tar and compress + tmpdir = self._create_files() + base_name = os.path.join(self.mkdtemp(), 'archive') + with path.Path(tmpdir): + make_zipfile(base_name, 'dist') + + tarball = base_name + '.zip' + assert called == [((tarball, "w"), {'compression': zipfile.ZIP_STORED})] + assert os.path.exists(tarball) + with zipfile.ZipFile(tarball) as zf: + assert sorted(zf.namelist()) == self._zip_created_files + + def test_check_archive_formats(self): + assert check_archive_formats(['gztar', 'xxx', 'zip']) == 'xxx' + assert ( + check_archive_formats(['gztar', 'bztar', 'xztar', 'ztar', 'tar', 'zip']) + is None + ) + + def test_make_archive(self): + tmpdir = self.mkdtemp() + base_name = os.path.join(tmpdir, 'archive') + with pytest.raises(ValueError): + make_archive(base_name, 'xxx') + + def test_make_archive_cwd(self): + current_dir = os.getcwd() + + def _breaks(*args, **kw): + raise RuntimeError() + + ARCHIVE_FORMATS['xxx'] = (_breaks, [], 'xxx file') + try: + try: + make_archive('xxx', 'xxx', root_dir=self.mkdtemp()) + except Exception: + pass + assert os.getcwd() == current_dir + finally: + ARCHIVE_FORMATS.pop('xxx') + + def test_make_archive_tar(self): + base_dir = self._create_files() + base_name = os.path.join(self.mkdtemp(), 'archive') + res = make_archive(base_name, 'tar', base_dir, 'dist') + assert os.path.exists(res) + assert os.path.basename(res) == 'archive.tar' + assert self._tarinfo(res) == self._created_files + + @pytest.mark.usefixtures('needs_zlib') + def test_make_archive_gztar(self): + base_dir = self._create_files() + base_name = os.path.join(self.mkdtemp(), 'archive') + res = make_archive(base_name, 'gztar', base_dir, 'dist') + assert os.path.exists(res) + assert os.path.basename(res) == 'archive.tar.gz' + assert self._tarinfo(res) == self._created_files + + def test_make_archive_bztar(self): + pytest.importorskip('bz2') + base_dir = self._create_files() + base_name = os.path.join(self.mkdtemp(), 'archive') + res = make_archive(base_name, 'bztar', base_dir, 'dist') + assert os.path.exists(res) + assert os.path.basename(res) == 'archive.tar.bz2' + assert self._tarinfo(res) == self._created_files + + def test_make_archive_xztar(self): + pytest.importorskip('lzma') + base_dir = self._create_files() + base_name = os.path.join(self.mkdtemp(), 'archive') + res = make_archive(base_name, 'xztar', base_dir, 'dist') + assert os.path.exists(res) + assert os.path.basename(res) == 'archive.tar.xz' + assert self._tarinfo(res) == self._created_files + + def test_make_archive_owner_group(self): + # testing make_archive with owner and group, with various combinations + # this works even if there's not gid/uid support + if UID_0_SUPPORT: + group = grp.getgrgid(0)[0] + owner = pwd.getpwuid(0)[0] + else: + group = owner = 'root' + + base_dir = self._create_files() + root_dir = self.mkdtemp() + base_name = os.path.join(self.mkdtemp(), 'archive') + res = make_archive( + base_name, 'zip', root_dir, base_dir, owner=owner, group=group + ) + assert os.path.exists(res) + + res = make_archive(base_name, 'zip', root_dir, base_dir) + assert os.path.exists(res) + + res = make_archive( + base_name, 'tar', root_dir, base_dir, owner=owner, group=group + ) + assert os.path.exists(res) + + res = make_archive( + base_name, 'tar', root_dir, base_dir, owner='kjhkjhkjg', group='oihohoh' + ) + assert os.path.exists(res) + + @pytest.mark.usefixtures('needs_zlib') + @require_unix_id + @require_uid_0 + def test_tarfile_root_owner(self): + tmpdir = self._create_files() + base_name = os.path.join(self.mkdtemp(), 'archive') + old_dir = os.getcwd() + os.chdir(tmpdir) + group = grp.getgrgid(0)[0] + owner = pwd.getpwuid(0)[0] + try: + archive_name = make_tarball( + base_name, 'dist', compress=None, owner=owner, group=group + ) + finally: + os.chdir(old_dir) + + # check if the compressed tarball was created + assert os.path.exists(archive_name) + + # now checks the rights + archive = tarfile.open(archive_name) + try: + for member in archive.getmembers(): + assert member.uid == 0 + assert member.gid == 0 + finally: + archive.close() diff --git a/setuptools/_distutils/tests/test_bdist.py b/setuptools/_distutils/tests/test_bdist.py new file mode 100644 index 0000000000..d5696fc3dc --- /dev/null +++ b/setuptools/_distutils/tests/test_bdist.py @@ -0,0 +1,47 @@ +"""Tests for distutils.command.bdist.""" + +from distutils.command.bdist import bdist +from distutils.tests import support + + +class TestBuild(support.TempdirManager): + def test_formats(self): + # let's create a command and make sure + # we can set the format + dist = self.create_dist()[1] + cmd = bdist(dist) + cmd.formats = ['gztar'] + cmd.ensure_finalized() + assert cmd.formats == ['gztar'] + + # what formats does bdist offer? + formats = [ + 'bztar', + 'gztar', + 'rpm', + 'tar', + 'xztar', + 'zip', + 'ztar', + ] + found = sorted(cmd.format_commands) + assert found == formats + + def test_skip_build(self): + # bug #10946: bdist --skip-build should trickle down to subcommands + dist = self.create_dist()[1] + cmd = bdist(dist) + cmd.skip_build = True + cmd.ensure_finalized() + dist.command_obj['bdist'] = cmd + + names = [ + 'bdist_dumb', + ] # bdist_rpm does not support --skip-build + + for name in names: + subcmd = cmd.get_finalized_command(name) + if getattr(subcmd, '_unsupported', False): + # command is not supported on this build + continue + assert subcmd.skip_build, f'{name} should take --skip-build from bdist' diff --git a/setuptools/_distutils/tests/test_bdist_dumb.py b/setuptools/_distutils/tests/test_bdist_dumb.py new file mode 100644 index 0000000000..1fc51d244a --- /dev/null +++ b/setuptools/_distutils/tests/test_bdist_dumb.py @@ -0,0 +1,78 @@ +"""Tests for distutils.command.bdist_dumb.""" + +import os +import sys +import zipfile +from distutils.command.bdist_dumb import bdist_dumb +from distutils.core import Distribution +from distutils.tests import support + +import pytest + +SETUP_PY = """\ +from distutils.core import setup +import foo + +setup(name='foo', version='0.1', py_modules=['foo'], + url='xxx', author='xxx', author_email='xxx') + +""" + + +@support.combine_markers +@pytest.mark.usefixtures('save_env') +@pytest.mark.usefixtures('save_argv') +@pytest.mark.usefixtures('save_cwd') +class TestBuildDumb( + support.TempdirManager, +): + @pytest.mark.usefixtures('needs_zlib') + def test_simple_built(self): + # let's create a simple package + tmp_dir = self.mkdtemp() + pkg_dir = os.path.join(tmp_dir, 'foo') + os.mkdir(pkg_dir) + self.write_file((pkg_dir, 'setup.py'), SETUP_PY) + self.write_file((pkg_dir, 'foo.py'), '#') + self.write_file((pkg_dir, 'MANIFEST.in'), 'include foo.py') + self.write_file((pkg_dir, 'README'), '') + + dist = Distribution({ + 'name': 'foo', + 'version': '0.1', + 'py_modules': ['foo'], + 'url': 'xxx', + 'author': 'xxx', + 'author_email': 'xxx', + }) + dist.script_name = 'setup.py' + os.chdir(pkg_dir) + + sys.argv = ['setup.py'] + cmd = bdist_dumb(dist) + + # so the output is the same no matter + # what is the platform + cmd.format = 'zip' + + cmd.ensure_finalized() + cmd.run() + + # see what we have + dist_created = os.listdir(os.path.join(pkg_dir, 'dist')) + base = f"{dist.get_fullname()}.{cmd.plat_name}.zip" + + assert dist_created == [base] + + # now let's check what we have in the zip file + fp = zipfile.ZipFile(os.path.join('dist', base)) + try: + contents = fp.namelist() + finally: + fp.close() + + contents = sorted(filter(None, map(os.path.basename, contents))) + wanted = ['foo-0.1-py{}.{}.egg-info'.format(*sys.version_info[:2]), 'foo.py'] + if not sys.dont_write_bytecode: + wanted.append(f'foo.{sys.implementation.cache_tag}.pyc') + assert contents == sorted(wanted) diff --git a/setuptools/_distutils/tests/test_bdist_rpm.py b/setuptools/_distutils/tests/test_bdist_rpm.py new file mode 100644 index 0000000000..75051430e2 --- /dev/null +++ b/setuptools/_distutils/tests/test_bdist_rpm.py @@ -0,0 +1,127 @@ +"""Tests for distutils.command.bdist_rpm.""" + +import os +import shutil # noqa: F401 +import sys +from distutils.command.bdist_rpm import bdist_rpm +from distutils.core import Distribution +from distutils.tests import support + +import pytest +from test.support import requires_zlib + +SETUP_PY = """\ +from distutils.core import setup +import foo + +setup(name='foo', version='0.1', py_modules=['foo'], + url='xxx', author='xxx', author_email='xxx') + +""" + + +@pytest.fixture(autouse=True) +def sys_executable_encodable(): + try: + sys.executable.encode('UTF-8') + except UnicodeEncodeError: + pytest.skip("sys.executable is not encodable to UTF-8") + + +mac_woes = pytest.mark.skipif( + "not sys.platform.startswith('linux')", + reason='spurious sdtout/stderr output under macOS', +) + + +@pytest.mark.usefixtures('save_env') +@pytest.mark.usefixtures('save_argv') +@pytest.mark.usefixtures('save_cwd') +class TestBuildRpm( + support.TempdirManager, +): + @mac_woes + @requires_zlib() + @pytest.mark.skipif("not shutil.which('rpm')") + @pytest.mark.skipif("not shutil.which('rpmbuild')") + def test_quiet(self): + # let's create a package + tmp_dir = self.mkdtemp() + os.environ['HOME'] = tmp_dir # to confine dir '.rpmdb' creation + pkg_dir = os.path.join(tmp_dir, 'foo') + os.mkdir(pkg_dir) + self.write_file((pkg_dir, 'setup.py'), SETUP_PY) + self.write_file((pkg_dir, 'foo.py'), '#') + self.write_file((pkg_dir, 'MANIFEST.in'), 'include foo.py') + self.write_file((pkg_dir, 'README'), '') + + dist = Distribution({ + 'name': 'foo', + 'version': '0.1', + 'py_modules': ['foo'], + 'url': 'xxx', + 'author': 'xxx', + 'author_email': 'xxx', + }) + dist.script_name = 'setup.py' + os.chdir(pkg_dir) + + sys.argv = ['setup.py'] + cmd = bdist_rpm(dist) + cmd.fix_python = True + + # running in quiet mode + cmd.quiet = True + cmd.ensure_finalized() + cmd.run() + + dist_created = os.listdir(os.path.join(pkg_dir, 'dist')) + assert 'foo-0.1-1.noarch.rpm' in dist_created + + # bug #2945: upload ignores bdist_rpm files + assert ('bdist_rpm', 'any', 'dist/foo-0.1-1.src.rpm') in dist.dist_files + assert ('bdist_rpm', 'any', 'dist/foo-0.1-1.noarch.rpm') in dist.dist_files + + @mac_woes + @requires_zlib() + # https://bugs.python.org/issue1533164 + @pytest.mark.skipif("not shutil.which('rpm')") + @pytest.mark.skipif("not shutil.which('rpmbuild')") + def test_no_optimize_flag(self): + # let's create a package that breaks bdist_rpm + tmp_dir = self.mkdtemp() + os.environ['HOME'] = tmp_dir # to confine dir '.rpmdb' creation + pkg_dir = os.path.join(tmp_dir, 'foo') + os.mkdir(pkg_dir) + self.write_file((pkg_dir, 'setup.py'), SETUP_PY) + self.write_file((pkg_dir, 'foo.py'), '#') + self.write_file((pkg_dir, 'MANIFEST.in'), 'include foo.py') + self.write_file((pkg_dir, 'README'), '') + + dist = Distribution({ + 'name': 'foo', + 'version': '0.1', + 'py_modules': ['foo'], + 'url': 'xxx', + 'author': 'xxx', + 'author_email': 'xxx', + }) + dist.script_name = 'setup.py' + os.chdir(pkg_dir) + + sys.argv = ['setup.py'] + cmd = bdist_rpm(dist) + cmd.fix_python = True + + cmd.quiet = True + cmd.ensure_finalized() + cmd.run() + + dist_created = os.listdir(os.path.join(pkg_dir, 'dist')) + assert 'foo-0.1-1.noarch.rpm' in dist_created + + # bug #2945: upload ignores bdist_rpm files + assert ('bdist_rpm', 'any', 'dist/foo-0.1-1.src.rpm') in dist.dist_files + assert ('bdist_rpm', 'any', 'dist/foo-0.1-1.noarch.rpm') in dist.dist_files + + os.remove(os.path.join(pkg_dir, 'dist', 'foo-0.1-1.noarch.rpm')) diff --git a/setuptools/_distutils/tests/test_build.py b/setuptools/_distutils/tests/test_build.py new file mode 100644 index 0000000000..f7fe69acd1 --- /dev/null +++ b/setuptools/_distutils/tests/test_build.py @@ -0,0 +1,49 @@ +"""Tests for distutils.command.build.""" + +import os +import sys +from distutils.command.build import build +from distutils.tests import support +from sysconfig import get_config_var, get_platform + + +class TestBuild(support.TempdirManager): + def test_finalize_options(self): + pkg_dir, dist = self.create_dist() + cmd = build(dist) + cmd.finalize_options() + + # if not specified, plat_name gets the current platform + assert cmd.plat_name == get_platform() + + # build_purelib is build + lib + wanted = os.path.join(cmd.build_base, 'lib') + assert cmd.build_purelib == wanted + + # build_platlib is 'build/lib.platform-cache_tag[-pydebug]' + # examples: + # build/lib.macosx-10.3-i386-cpython39 + plat_spec = f'.{cmd.plat_name}-{sys.implementation.cache_tag}' + if get_config_var('Py_GIL_DISABLED'): + plat_spec += 't' + if hasattr(sys, 'gettotalrefcount'): + assert cmd.build_platlib.endswith('-pydebug') + plat_spec += '-pydebug' + wanted = os.path.join(cmd.build_base, 'lib' + plat_spec) + assert cmd.build_platlib == wanted + + # by default, build_lib = build_purelib + assert cmd.build_lib == cmd.build_purelib + + # build_temp is build/temp. + wanted = os.path.join(cmd.build_base, 'temp' + plat_spec) + assert cmd.build_temp == wanted + + # build_scripts is build/scripts-x.x + wanted = os.path.join( + cmd.build_base, f'scripts-{sys.version_info.major}.{sys.version_info.minor}' + ) + assert cmd.build_scripts == wanted + + # executable is os.path.normpath(sys.executable) + assert cmd.executable == os.path.normpath(sys.executable) diff --git a/setuptools/_distutils/tests/test_build_clib.py b/setuptools/_distutils/tests/test_build_clib.py new file mode 100644 index 0000000000..f76f26bcea --- /dev/null +++ b/setuptools/_distutils/tests/test_build_clib.py @@ -0,0 +1,134 @@ +"""Tests for distutils.command.build_clib.""" + +import os +from distutils.command.build_clib import build_clib +from distutils.errors import DistutilsSetupError +from distutils.tests import missing_compiler_executable, support + +import pytest + + +class TestBuildCLib(support.TempdirManager): + def test_check_library_dist(self): + pkg_dir, dist = self.create_dist() + cmd = build_clib(dist) + + # 'libraries' option must be a list + with pytest.raises(DistutilsSetupError): + cmd.check_library_list('foo') + + # each element of 'libraries' must a 2-tuple + with pytest.raises(DistutilsSetupError): + cmd.check_library_list(['foo1', 'foo2']) + + # first element of each tuple in 'libraries' + # must be a string (the library name) + with pytest.raises(DistutilsSetupError): + cmd.check_library_list([(1, 'foo1'), ('name', 'foo2')]) + + # library name may not contain directory separators + with pytest.raises(DistutilsSetupError): + cmd.check_library_list( + [('name', 'foo1'), ('another/name', 'foo2')], + ) + + # second element of each tuple must be a dictionary (build info) + with pytest.raises(DistutilsSetupError): + cmd.check_library_list( + [('name', {}), ('another', 'foo2')], + ) + + # those work + libs = [('name', {}), ('name', {'ok': 'good'})] + cmd.check_library_list(libs) + + def test_get_source_files(self): + pkg_dir, dist = self.create_dist() + cmd = build_clib(dist) + + # "in 'libraries' option 'sources' must be present and must be + # a list of source filenames + cmd.libraries = [('name', {})] + with pytest.raises(DistutilsSetupError): + cmd.get_source_files() + + cmd.libraries = [('name', {'sources': 1})] + with pytest.raises(DistutilsSetupError): + cmd.get_source_files() + + cmd.libraries = [('name', {'sources': ['a', 'b']})] + assert cmd.get_source_files() == ['a', 'b'] + + cmd.libraries = [('name', {'sources': ('a', 'b')})] + assert cmd.get_source_files() == ['a', 'b'] + + cmd.libraries = [ + ('name', {'sources': ('a', 'b')}), + ('name2', {'sources': ['c', 'd']}), + ] + assert cmd.get_source_files() == ['a', 'b', 'c', 'd'] + + def test_build_libraries(self): + pkg_dir, dist = self.create_dist() + cmd = build_clib(dist) + + class FakeCompiler: + def compile(*args, **kw): + pass + + create_static_lib = compile + + cmd.compiler = FakeCompiler() + + # build_libraries is also doing a bit of typo checking + lib = [('name', {'sources': 'notvalid'})] + with pytest.raises(DistutilsSetupError): + cmd.build_libraries(lib) + + lib = [('name', {'sources': list()})] + cmd.build_libraries(lib) + + lib = [('name', {'sources': tuple()})] + cmd.build_libraries(lib) + + def test_finalize_options(self): + pkg_dir, dist = self.create_dist() + cmd = build_clib(dist) + + cmd.include_dirs = 'one-dir' + cmd.finalize_options() + assert cmd.include_dirs == ['one-dir'] + + cmd.include_dirs = None + cmd.finalize_options() + assert cmd.include_dirs == [] + + cmd.distribution.libraries = 'WONTWORK' + with pytest.raises(DistutilsSetupError): + cmd.finalize_options() + + @pytest.mark.skipif('platform.system() == "Windows"') + def test_run(self): + pkg_dir, dist = self.create_dist() + cmd = build_clib(dist) + + foo_c = os.path.join(pkg_dir, 'foo.c') + self.write_file(foo_c, 'int main(void) { return 1;}\n') + cmd.libraries = [('foo', {'sources': [foo_c]})] + + build_temp = os.path.join(pkg_dir, 'build') + os.mkdir(build_temp) + cmd.build_temp = build_temp + cmd.build_clib = build_temp + + # Before we run the command, we want to make sure + # all commands are present on the system. + ccmd = missing_compiler_executable() + if ccmd is not None: + self.skipTest(f'The {ccmd!r} command is not found') + + # this should work + cmd.run() + + # let's check the result + assert 'libfoo.a' in os.listdir(build_temp) diff --git a/setuptools/_distutils/tests/test_build_ext.py b/setuptools/_distutils/tests/test_build_ext.py new file mode 100644 index 0000000000..dab0507f3d --- /dev/null +++ b/setuptools/_distutils/tests/test_build_ext.py @@ -0,0 +1,628 @@ +import contextlib +import glob +import importlib +import os.path +import platform +import re +import shutil +import site +import subprocess +import sys +import tempfile +import textwrap +import time +from distutils import sysconfig +from distutils.command.build_ext import build_ext +from distutils.core import Distribution +from distutils.errors import ( + CompileError, + DistutilsPlatformError, + DistutilsSetupError, + UnknownFileError, +) +from distutils.extension import Extension +from distutils.tests import missing_compiler_executable +from distutils.tests.support import TempdirManager, copy_xxmodule_c, fixup_build_ext +from io import StringIO + +import jaraco.path +import path +import pytest +from test import support + +from .compat import py39 as import_helper + + +@pytest.fixture() +def user_site_dir(request): + self = request.instance + self.tmp_dir = self.mkdtemp() + self.tmp_path = path.Path(self.tmp_dir) + from distutils.command import build_ext + + orig_user_base = site.USER_BASE + + site.USER_BASE = self.mkdtemp() + build_ext.USER_BASE = site.USER_BASE + + # bpo-30132: On Windows, a .pdb file may be created in the current + # working directory. Create a temporary working directory to cleanup + # everything at the end of the test. + with self.tmp_path: + yield + + site.USER_BASE = orig_user_base + build_ext.USER_BASE = orig_user_base + + if sys.platform == 'cygwin': + time.sleep(1) + + +@contextlib.contextmanager +def safe_extension_import(name, path): + with import_helper.CleanImport(name): + with extension_redirect(name, path) as new_path: + with import_helper.DirsOnSysPath(new_path): + yield + + +@contextlib.contextmanager +def extension_redirect(mod, path): + """ + Tests will fail to tear down an extension module if it's been imported. + + Before importing, copy the file to a temporary directory that won't + be cleaned up. Yield the new path. + """ + if platform.system() != "Windows" and sys.platform != "cygwin": + yield path + return + with import_helper.DirsOnSysPath(path): + spec = importlib.util.find_spec(mod) + filename = os.path.basename(spec.origin) + trash_dir = tempfile.mkdtemp(prefix='deleteme') + dest = os.path.join(trash_dir, os.path.basename(filename)) + shutil.copy(spec.origin, dest) + yield trash_dir + # TODO: can the file be scheduled for deletion? + + +@pytest.mark.usefixtures('user_site_dir') +class TestBuildExt(TempdirManager): + def build_ext(self, *args, **kwargs): + return build_ext(*args, **kwargs) + + @pytest.mark.parametrize("copy_so", [False]) + def test_build_ext(self, copy_so): + missing_compiler_executable() + copy_xxmodule_c(self.tmp_dir) + xx_c = os.path.join(self.tmp_dir, 'xxmodule.c') + xx_ext = Extension('xx', [xx_c]) + if sys.platform != "win32": + if not copy_so: + xx_ext = Extension( + 'xx', + [xx_c], + library_dirs=['/usr/lib'], + libraries=['z'], + runtime_library_dirs=['/usr/lib'], + ) + elif sys.platform == 'linux': + libz_so = { + os.path.realpath(name) for name in glob.iglob('/usr/lib*/libz.so*') + } + libz_so = sorted(libz_so, key=lambda lib_path: len(lib_path)) + shutil.copyfile(libz_so[-1], '/tmp/libxx_z.so') + + xx_ext = Extension( + 'xx', + [xx_c], + library_dirs=['/tmp'], + libraries=['xx_z'], + runtime_library_dirs=['/tmp'], + ) + dist = Distribution({'name': 'xx', 'ext_modules': [xx_ext]}) + dist.package_dir = self.tmp_dir + cmd = self.build_ext(dist) + fixup_build_ext(cmd) + cmd.build_lib = self.tmp_dir + cmd.build_temp = self.tmp_dir + + old_stdout = sys.stdout + if not support.verbose: + # silence compiler output + sys.stdout = StringIO() + try: + cmd.ensure_finalized() + cmd.run() + finally: + sys.stdout = old_stdout + + with safe_extension_import('xx', self.tmp_dir): + self._test_xx(copy_so) + + if sys.platform == 'linux' and copy_so: + os.unlink('/tmp/libxx_z.so') + + @staticmethod + def _test_xx(copy_so): + import xx # type: ignore[import-not-found] # Module generated for tests + + for attr in ('error', 'foo', 'new', 'roj'): + assert hasattr(xx, attr) + + assert xx.foo(2, 5) == 7 + assert xx.foo(13, 15) == 28 + assert xx.new().demo() is None + if support.HAVE_DOCSTRINGS: + doc = 'This is a template module just for instruction.' + assert xx.__doc__ == doc + assert isinstance(xx.Null(), xx.Null) + assert isinstance(xx.Str(), xx.Str) + + if sys.platform == 'linux': + so_headers = subprocess.check_output( + ["readelf", "-d", xx.__file__], universal_newlines=True + ) + import pprint + + pprint.pprint(so_headers) + rpaths = [ + rpath + for line in so_headers.split("\n") + if "RPATH" in line or "RUNPATH" in line + for rpath in line.split()[2][1:-1].split(":") + ] + if not copy_so: + pprint.pprint(rpaths) + # Linked against a library in /usr/lib{,64} + assert "/usr/lib" not in rpaths and "/usr/lib64" not in rpaths + else: + # Linked against a library in /tmp + assert "/tmp" in rpaths + # The import is the real test here + + def test_solaris_enable_shared(self): + dist = Distribution({'name': 'xx'}) + cmd = self.build_ext(dist) + old = sys.platform + + sys.platform = 'sunos' # fooling finalize_options + from distutils.sysconfig import _config_vars + + old_var = _config_vars.get('Py_ENABLE_SHARED') + _config_vars['Py_ENABLE_SHARED'] = True + try: + cmd.ensure_finalized() + finally: + sys.platform = old + if old_var is None: + del _config_vars['Py_ENABLE_SHARED'] + else: + _config_vars['Py_ENABLE_SHARED'] = old_var + + # make sure we get some library dirs under solaris + assert len(cmd.library_dirs) > 0 + + def test_user_site(self): + import site + + dist = Distribution({'name': 'xx'}) + cmd = self.build_ext(dist) + + # making sure the user option is there + options = [name for name, short, label in cmd.user_options] + assert 'user' in options + + # setting a value + cmd.user = True + + # setting user based lib and include + lib = os.path.join(site.USER_BASE, 'lib') + incl = os.path.join(site.USER_BASE, 'include') + os.mkdir(lib) + os.mkdir(incl) + + # let's run finalize + cmd.ensure_finalized() + + # see if include_dirs and library_dirs + # were set + assert lib in cmd.library_dirs + assert lib in cmd.rpath + assert incl in cmd.include_dirs + + def test_optional_extension(self): + # this extension will fail, but let's ignore this failure + # with the optional argument. + modules = [Extension('foo', ['xxx'], optional=False)] + dist = Distribution({'name': 'xx', 'ext_modules': modules}) + cmd = self.build_ext(dist) + cmd.ensure_finalized() + with pytest.raises((UnknownFileError, CompileError)): + cmd.run() # should raise an error + + modules = [Extension('foo', ['xxx'], optional=True)] + dist = Distribution({'name': 'xx', 'ext_modules': modules}) + cmd = self.build_ext(dist) + cmd.ensure_finalized() + cmd.run() # should pass + + def test_finalize_options(self): + # Make sure Python's include directories (for Python.h, pyconfig.h, + # etc.) are in the include search path. + modules = [Extension('foo', ['xxx'], optional=False)] + dist = Distribution({'name': 'xx', 'ext_modules': modules}) + cmd = self.build_ext(dist) + cmd.finalize_options() + + py_include = sysconfig.get_python_inc() + for p in py_include.split(os.path.pathsep): + assert p in cmd.include_dirs + + plat_py_include = sysconfig.get_python_inc(plat_specific=True) + for p in plat_py_include.split(os.path.pathsep): + assert p in cmd.include_dirs + + # make sure cmd.libraries is turned into a list + # if it's a string + cmd = self.build_ext(dist) + cmd.libraries = 'my_lib, other_lib lastlib' + cmd.finalize_options() + assert cmd.libraries == ['my_lib', 'other_lib', 'lastlib'] + + # make sure cmd.library_dirs is turned into a list + # if it's a string + cmd = self.build_ext(dist) + cmd.library_dirs = f'my_lib_dir{os.pathsep}other_lib_dir' + cmd.finalize_options() + assert 'my_lib_dir' in cmd.library_dirs + assert 'other_lib_dir' in cmd.library_dirs + + # make sure rpath is turned into a list + # if it's a string + cmd = self.build_ext(dist) + cmd.rpath = f'one{os.pathsep}two' + cmd.finalize_options() + assert cmd.rpath == ['one', 'two'] + + # make sure cmd.link_objects is turned into a list + # if it's a string + cmd = build_ext(dist) + cmd.link_objects = 'one two,three' + cmd.finalize_options() + assert cmd.link_objects == ['one', 'two', 'three'] + + # XXX more tests to perform for win32 + + # make sure define is turned into 2-tuples + # strings if they are ','-separated strings + cmd = self.build_ext(dist) + cmd.define = 'one,two' + cmd.finalize_options() + assert cmd.define == [('one', '1'), ('two', '1')] + + # make sure undef is turned into a list of + # strings if they are ','-separated strings + cmd = self.build_ext(dist) + cmd.undef = 'one,two' + cmd.finalize_options() + assert cmd.undef == ['one', 'two'] + + # make sure swig_opts is turned into a list + cmd = self.build_ext(dist) + cmd.swig_opts = None + cmd.finalize_options() + assert cmd.swig_opts == [] + + cmd = self.build_ext(dist) + cmd.swig_opts = '1 2' + cmd.finalize_options() + assert cmd.swig_opts == ['1', '2'] + + def test_check_extensions_list(self): + dist = Distribution() + cmd = self.build_ext(dist) + cmd.finalize_options() + + # 'extensions' option must be a list of Extension instances + with pytest.raises(DistutilsSetupError): + cmd.check_extensions_list('foo') + + # each element of 'ext_modules' option must be an + # Extension instance or 2-tuple + exts = [('bar', 'foo', 'bar'), 'foo'] + with pytest.raises(DistutilsSetupError): + cmd.check_extensions_list(exts) + + # first element of each tuple in 'ext_modules' + # must be the extension name (a string) and match + # a python dotted-separated name + exts = [('foo-bar', '')] + with pytest.raises(DistutilsSetupError): + cmd.check_extensions_list(exts) + + # second element of each tuple in 'ext_modules' + # must be a dictionary (build info) + exts = [('foo.bar', '')] + with pytest.raises(DistutilsSetupError): + cmd.check_extensions_list(exts) + + # ok this one should pass + exts = [('foo.bar', {'sources': [''], 'libraries': 'foo', 'some': 'bar'})] + cmd.check_extensions_list(exts) + ext = exts[0] + assert isinstance(ext, Extension) + + # check_extensions_list adds in ext the values passed + # when they are in ('include_dirs', 'library_dirs', 'libraries' + # 'extra_objects', 'extra_compile_args', 'extra_link_args') + assert ext.libraries == 'foo' + assert not hasattr(ext, 'some') + + # 'macros' element of build info dict must be 1- or 2-tuple + exts = [ + ( + 'foo.bar', + { + 'sources': [''], + 'libraries': 'foo', + 'some': 'bar', + 'macros': [('1', '2', '3'), 'foo'], + }, + ) + ] + with pytest.raises(DistutilsSetupError): + cmd.check_extensions_list(exts) + + exts[0][1]['macros'] = [('1', '2'), ('3',)] + cmd.check_extensions_list(exts) + assert exts[0].undef_macros == ['3'] + assert exts[0].define_macros == [('1', '2')] + + def test_get_source_files(self): + modules = [Extension('foo', ['xxx'], optional=False)] + dist = Distribution({'name': 'xx', 'ext_modules': modules}) + cmd = self.build_ext(dist) + cmd.ensure_finalized() + assert cmd.get_source_files() == ['xxx'] + + def test_unicode_module_names(self): + modules = [ + Extension('foo', ['aaa'], optional=False), + Extension('föö', ['uuu'], optional=False), + ] + dist = Distribution({'name': 'xx', 'ext_modules': modules}) + cmd = self.build_ext(dist) + cmd.ensure_finalized() + assert re.search(r'foo(_d)?\..*', cmd.get_ext_filename(modules[0].name)) + assert re.search(r'föö(_d)?\..*', cmd.get_ext_filename(modules[1].name)) + assert cmd.get_export_symbols(modules[0]) == ['PyInit_foo'] + assert cmd.get_export_symbols(modules[1]) == ['PyInitU_f_1gaa'] + + def test_export_symbols__init__(self): + # https://github.com/python/cpython/issues/80074 + # https://github.com/pypa/setuptools/issues/4826 + modules = [ + Extension('foo.__init__', ['aaa']), + Extension('föö.__init__', ['uuu']), + ] + dist = Distribution({'name': 'xx', 'ext_modules': modules}) + cmd = self.build_ext(dist) + cmd.ensure_finalized() + assert cmd.get_export_symbols(modules[0]) == ['PyInit_foo'] + assert cmd.get_export_symbols(modules[1]) == ['PyInitU_f_1gaa'] + + def test_compiler_option(self): + # cmd.compiler is an option and + # should not be overridden by a compiler instance + # when the command is run + dist = Distribution() + cmd = self.build_ext(dist) + cmd.compiler = 'unix' + cmd.ensure_finalized() + cmd.run() + assert cmd.compiler == 'unix' + + def test_get_outputs(self): + missing_compiler_executable() + tmp_dir = self.mkdtemp() + c_file = os.path.join(tmp_dir, 'foo.c') + self.write_file(c_file, 'void PyInit_foo(void) {}\n') + ext = Extension('foo', [c_file], optional=False) + dist = Distribution({'name': 'xx', 'ext_modules': [ext]}) + cmd = self.build_ext(dist) + fixup_build_ext(cmd) + cmd.ensure_finalized() + assert len(cmd.get_outputs()) == 1 + + cmd.build_lib = os.path.join(self.tmp_dir, 'build') + cmd.build_temp = os.path.join(self.tmp_dir, 'tempt') + + # issue #5977 : distutils build_ext.get_outputs + # returns wrong result with --inplace + other_tmp_dir = os.path.realpath(self.mkdtemp()) + old_wd = os.getcwd() + os.chdir(other_tmp_dir) + try: + cmd.inplace = True + cmd.run() + so_file = cmd.get_outputs()[0] + finally: + os.chdir(old_wd) + assert os.path.exists(so_file) + ext_suffix = sysconfig.get_config_var('EXT_SUFFIX') + assert so_file.endswith(ext_suffix) + so_dir = os.path.dirname(so_file) + assert so_dir == other_tmp_dir + + cmd.inplace = False + cmd.compiler = None + cmd.run() + so_file = cmd.get_outputs()[0] + assert os.path.exists(so_file) + assert so_file.endswith(ext_suffix) + so_dir = os.path.dirname(so_file) + assert so_dir == cmd.build_lib + + # inplace = False, cmd.package = 'bar' + build_py = cmd.get_finalized_command('build_py') + build_py.package_dir = {'': 'bar'} + path = cmd.get_ext_fullpath('foo') + # checking that the last directory is the build_dir + path = os.path.split(path)[0] + assert path == cmd.build_lib + + # inplace = True, cmd.package = 'bar' + cmd.inplace = True + other_tmp_dir = os.path.realpath(self.mkdtemp()) + old_wd = os.getcwd() + os.chdir(other_tmp_dir) + try: + path = cmd.get_ext_fullpath('foo') + finally: + os.chdir(old_wd) + # checking that the last directory is bar + path = os.path.split(path)[0] + lastdir = os.path.split(path)[-1] + assert lastdir == 'bar' + + def test_ext_fullpath(self): + ext = sysconfig.get_config_var('EXT_SUFFIX') + # building lxml.etree inplace + # etree_c = os.path.join(self.tmp_dir, 'lxml.etree.c') + # etree_ext = Extension('lxml.etree', [etree_c]) + # dist = Distribution({'name': 'lxml', 'ext_modules': [etree_ext]}) + dist = Distribution() + cmd = self.build_ext(dist) + cmd.inplace = True + cmd.distribution.package_dir = {'': 'src'} + cmd.distribution.packages = ['lxml', 'lxml.html'] + curdir = os.getcwd() + wanted = os.path.join(curdir, 'src', 'lxml', 'etree' + ext) + path = cmd.get_ext_fullpath('lxml.etree') + assert wanted == path + + # building lxml.etree not inplace + cmd.inplace = False + cmd.build_lib = os.path.join(curdir, 'tmpdir') + wanted = os.path.join(curdir, 'tmpdir', 'lxml', 'etree' + ext) + path = cmd.get_ext_fullpath('lxml.etree') + assert wanted == path + + # building twisted.runner.portmap not inplace + build_py = cmd.get_finalized_command('build_py') + build_py.package_dir = {} + cmd.distribution.packages = ['twisted', 'twisted.runner.portmap'] + path = cmd.get_ext_fullpath('twisted.runner.portmap') + wanted = os.path.join(curdir, 'tmpdir', 'twisted', 'runner', 'portmap' + ext) + assert wanted == path + + # building twisted.runner.portmap inplace + cmd.inplace = True + path = cmd.get_ext_fullpath('twisted.runner.portmap') + wanted = os.path.join(curdir, 'twisted', 'runner', 'portmap' + ext) + assert wanted == path + + @pytest.mark.skipif('platform.system() != "Darwin"') + @pytest.mark.usefixtures('save_env') + def test_deployment_target_default(self): + # Issue 9516: Test that, in the absence of the environment variable, + # an extension module is compiled with the same deployment target as + # the interpreter. + self._try_compile_deployment_target('==', None) + + @pytest.mark.skipif('platform.system() != "Darwin"') + @pytest.mark.usefixtures('save_env') + def test_deployment_target_too_low(self): + # Issue 9516: Test that an extension module is not allowed to be + # compiled with a deployment target less than that of the interpreter. + with pytest.raises(DistutilsPlatformError): + self._try_compile_deployment_target('>', '10.1') + + @pytest.mark.skipif('platform.system() != "Darwin"') + @pytest.mark.usefixtures('save_env') + def test_deployment_target_higher_ok(self): # pragma: no cover + # Issue 9516: Test that an extension module can be compiled with a + # deployment target higher than that of the interpreter: the ext + # module may depend on some newer OS feature. + deptarget = sysconfig.get_config_var('MACOSX_DEPLOYMENT_TARGET') + if deptarget: + # increment the minor version number (i.e. 10.6 -> 10.7) + deptarget = [int(x) for x in deptarget.split('.')] + deptarget[-1] += 1 + deptarget = '.'.join(str(i) for i in deptarget) + self._try_compile_deployment_target('<', deptarget) + + def _try_compile_deployment_target(self, operator, target): # pragma: no cover + if target is None: + if os.environ.get('MACOSX_DEPLOYMENT_TARGET'): + del os.environ['MACOSX_DEPLOYMENT_TARGET'] + else: + os.environ['MACOSX_DEPLOYMENT_TARGET'] = target + + jaraco.path.build( + { + 'deptargetmodule.c': textwrap.dedent(f"""\ + #include + + int dummy; + + #if TARGET {operator} MAC_OS_X_VERSION_MIN_REQUIRED + #else + #error "Unexpected target" + #endif + + """), + }, + self.tmp_path, + ) + + # get the deployment target that the interpreter was built with + target = sysconfig.get_config_var('MACOSX_DEPLOYMENT_TARGET') + target = tuple(map(int, target.split('.')[0:2])) + # format the target value as defined in the Apple + # Availability Macros. We can't use the macro names since + # at least one value we test with will not exist yet. + if target[:2] < (10, 10): + # for 10.1 through 10.9.x -> "10n0" + tmpl = '{:02}{:01}0' + else: + # for 10.10 and beyond -> "10nn00" + if len(target) >= 2: + tmpl = '{:02}{:02}00' + else: + # 11 and later can have no minor version (11 instead of 11.0) + tmpl = '{:02}0000' + target = tmpl.format(*target) + deptarget_ext = Extension( + 'deptarget', + [self.tmp_path / 'deptargetmodule.c'], + extra_compile_args=[f'-DTARGET={target}'], + ) + dist = Distribution({'name': 'deptarget', 'ext_modules': [deptarget_ext]}) + dist.package_dir = self.tmp_dir + cmd = self.build_ext(dist) + cmd.build_lib = self.tmp_dir + cmd.build_temp = self.tmp_dir + + try: + old_stdout = sys.stdout + if not support.verbose: + # silence compiler output + sys.stdout = StringIO() + try: + cmd.ensure_finalized() + cmd.run() + finally: + sys.stdout = old_stdout + + except CompileError: + self.fail("Wrong deployment target during compilation") + + +class TestParallelBuildExt(TestBuildExt): + def build_ext(self, *args, **kwargs): + build_ext = super().build_ext(*args, **kwargs) + build_ext.parallel = True + return build_ext diff --git a/setuptools/_distutils/tests/test_build_py.py b/setuptools/_distutils/tests/test_build_py.py new file mode 100644 index 0000000000..b316ed43a1 --- /dev/null +++ b/setuptools/_distutils/tests/test_build_py.py @@ -0,0 +1,196 @@ +"""Tests for distutils.command.build_py.""" + +import os +import sys +from distutils.command.build_py import build_py +from distutils.core import Distribution +from distutils.errors import DistutilsFileError +from distutils.tests import support + +import jaraco.path +import pytest + + +@support.combine_markers +class TestBuildPy(support.TempdirManager): + def test_package_data(self): + sources = self.mkdtemp() + jaraco.path.build( + { + '__init__.py': "# Pretend this is a package.", + 'README.txt': 'Info about this package', + }, + sources, + ) + + destination = self.mkdtemp() + + dist = Distribution({"packages": ["pkg"], "package_dir": {"pkg": sources}}) + # script_name need not exist, it just need to be initialized + dist.script_name = os.path.join(sources, "setup.py") + dist.command_obj["build"] = support.DummyCommand( + force=False, build_lib=destination + ) + dist.packages = ["pkg"] + dist.package_data = {"pkg": ["README.txt"]} + dist.package_dir = {"pkg": sources} + + cmd = build_py(dist) + cmd.compile = True + cmd.ensure_finalized() + assert cmd.package_data == dist.package_data + + cmd.run() + + # This makes sure the list of outputs includes byte-compiled + # files for Python modules but not for package data files + # (there shouldn't *be* byte-code files for those!). + assert len(cmd.get_outputs()) == 3 + pkgdest = os.path.join(destination, "pkg") + files = os.listdir(pkgdest) + pycache_dir = os.path.join(pkgdest, "__pycache__") + assert "__init__.py" in files + assert "README.txt" in files + if sys.dont_write_bytecode: + assert not os.path.exists(pycache_dir) + else: + pyc_files = os.listdir(pycache_dir) + assert f"__init__.{sys.implementation.cache_tag}.pyc" in pyc_files + + def test_empty_package_dir(self): + # See bugs #1668596/#1720897 + sources = self.mkdtemp() + jaraco.path.build({'__init__.py': '', 'doc': {'testfile': ''}}, sources) + + os.chdir(sources) + dist = Distribution({ + "packages": ["pkg"], + "package_dir": {"pkg": ""}, + "package_data": {"pkg": ["doc/*"]}, + }) + # script_name need not exist, it just need to be initialized + dist.script_name = os.path.join(sources, "setup.py") + dist.script_args = ["build"] + dist.parse_command_line() + + try: + dist.run_commands() + except DistutilsFileError: + self.fail("failed package_data test when package_dir is ''") + + @pytest.mark.skipif('sys.dont_write_bytecode') + def test_byte_compile(self): + project_dir, dist = self.create_dist(py_modules=['boiledeggs']) + os.chdir(project_dir) + self.write_file('boiledeggs.py', 'import antigravity') + cmd = build_py(dist) + cmd.compile = True + cmd.build_lib = 'here' + cmd.finalize_options() + cmd.run() + + found = os.listdir(cmd.build_lib) + assert sorted(found) == ['__pycache__', 'boiledeggs.py'] + found = os.listdir(os.path.join(cmd.build_lib, '__pycache__')) + assert found == [f'boiledeggs.{sys.implementation.cache_tag}.pyc'] + + @pytest.mark.skipif('sys.dont_write_bytecode') + def test_byte_compile_optimized(self): + project_dir, dist = self.create_dist(py_modules=['boiledeggs']) + os.chdir(project_dir) + self.write_file('boiledeggs.py', 'import antigravity') + cmd = build_py(dist) + cmd.compile = False + cmd.optimize = 1 + cmd.build_lib = 'here' + cmd.finalize_options() + cmd.run() + + found = os.listdir(cmd.build_lib) + assert sorted(found) == ['__pycache__', 'boiledeggs.py'] + found = os.listdir(os.path.join(cmd.build_lib, '__pycache__')) + expect = f'boiledeggs.{sys.implementation.cache_tag}.opt-1.pyc' + assert sorted(found) == [expect] + + def test_dir_in_package_data(self): + """ + A directory in package_data should not be added to the filelist. + """ + # See bug 19286 + sources = self.mkdtemp() + jaraco.path.build( + { + 'pkg': { + '__init__.py': '', + 'doc': { + 'testfile': '', + # create a directory that could be incorrectly detected as a file + 'otherdir': {}, + }, + } + }, + sources, + ) + + os.chdir(sources) + dist = Distribution({"packages": ["pkg"], "package_data": {"pkg": ["doc/*"]}}) + # script_name need not exist, it just need to be initialized + dist.script_name = os.path.join(sources, "setup.py") + dist.script_args = ["build"] + dist.parse_command_line() + + try: + dist.run_commands() + except DistutilsFileError: + self.fail("failed package_data when data dir includes a dir") + + def test_dont_write_bytecode(self, caplog): + # makes sure byte_compile is not used + dist = self.create_dist()[1] + cmd = build_py(dist) + cmd.compile = True + cmd.optimize = 1 + + old_dont_write_bytecode = sys.dont_write_bytecode + sys.dont_write_bytecode = True + try: + cmd.byte_compile([]) + finally: + sys.dont_write_bytecode = old_dont_write_bytecode + + assert 'byte-compiling is disabled' in caplog.records[0].message + + def test_namespace_package_does_not_warn(self, caplog): + """ + Originally distutils implementation did not account for PEP 420 + and included warns for package directories that did not contain + ``__init__.py`` files. + After the acceptance of PEP 420, these warnings don't make more sense + so we want to ensure there are not displayed to not confuse the users. + """ + # Create a fake project structure with a package namespace: + tmp = self.mkdtemp() + jaraco.path.build({'ns': {'pkg': {'module.py': ''}}}, tmp) + os.chdir(tmp) + + # Configure the package: + attrs = { + "name": "ns.pkg", + "packages": ["ns", "ns.pkg"], + "script_name": "setup.py", + } + dist = Distribution(attrs) + + # Run code paths that would trigger the trap: + cmd = dist.get_command_obj("build_py") + cmd.finalize_options() + modules = cmd.find_all_modules() + assert len(modules) == 1 + module_path = modules[0][-1] + assert module_path.replace(os.sep, "/") == "ns/pkg/module.py" + + cmd.run() + + assert not any( + "package init file" in msg and "not found" in msg for msg in caplog.messages + ) diff --git a/setuptools/_distutils/tests/test_build_scripts.py b/setuptools/_distutils/tests/test_build_scripts.py new file mode 100644 index 0000000000..3582f691ef --- /dev/null +++ b/setuptools/_distutils/tests/test_build_scripts.py @@ -0,0 +1,96 @@ +"""Tests for distutils.command.build_scripts.""" + +import os +import textwrap +from distutils import sysconfig +from distutils.command.build_scripts import build_scripts +from distutils.core import Distribution +from distutils.tests import support + +import jaraco.path + + +class TestBuildScripts(support.TempdirManager): + def test_default_settings(self): + cmd = self.get_build_scripts_cmd("/foo/bar", []) + assert not cmd.force + assert cmd.build_dir is None + + cmd.finalize_options() + + assert cmd.force + assert cmd.build_dir == "/foo/bar" + + def test_build(self): + source = self.mkdtemp() + target = self.mkdtemp() + expected = self.write_sample_scripts(source) + + cmd = self.get_build_scripts_cmd( + target, [os.path.join(source, fn) for fn in expected] + ) + cmd.finalize_options() + cmd.run() + + built = os.listdir(target) + for name in expected: + assert name in built + + def get_build_scripts_cmd(self, target, scripts): + import sys + + dist = Distribution() + dist.scripts = scripts + dist.command_obj["build"] = support.DummyCommand( + build_scripts=target, force=True, executable=sys.executable + ) + return build_scripts(dist) + + @staticmethod + def write_sample_scripts(dir): + spec = { + 'script1.py': textwrap.dedent(""" + #! /usr/bin/env python2.3 + # bogus script w/ Python sh-bang + pass + """).lstrip(), + 'script2.py': textwrap.dedent(""" + #!/usr/bin/python + # bogus script w/ Python sh-bang + pass + """).lstrip(), + 'shell.sh': textwrap.dedent(""" + #!/bin/sh + # bogus shell script w/ sh-bang + exit 0 + """).lstrip(), + } + jaraco.path.build(spec, dir) + return list(spec) + + def test_version_int(self): + source = self.mkdtemp() + target = self.mkdtemp() + expected = self.write_sample_scripts(source) + + cmd = self.get_build_scripts_cmd( + target, [os.path.join(source, fn) for fn in expected] + ) + cmd.finalize_options() + + # https://bugs.python.org/issue4524 + # + # On linux-g++-32 with command line `./configure --enable-ipv6 + # --with-suffix=3`, python is compiled okay but the build scripts + # failed when writing the name of the executable + old = sysconfig.get_config_vars().get('VERSION') + sysconfig._config_vars['VERSION'] = 4 + try: + cmd.run() + finally: + if old is not None: + sysconfig._config_vars['VERSION'] = old + + built = os.listdir(target) + for name in expected: + assert name in built diff --git a/setuptools/_distutils/tests/test_check.py b/setuptools/_distutils/tests/test_check.py new file mode 100644 index 0000000000..b672b1f972 --- /dev/null +++ b/setuptools/_distutils/tests/test_check.py @@ -0,0 +1,194 @@ +"""Tests for distutils.command.check.""" + +import os +import textwrap +from distutils.command.check import check +from distutils.errors import DistutilsSetupError +from distutils.tests import support + +import pytest + +try: + import pygments +except ImportError: + pygments = None + + +HERE = os.path.dirname(__file__) + + +@support.combine_markers +class TestCheck(support.TempdirManager): + def _run(self, metadata=None, cwd=None, **options): + if metadata is None: + metadata = {} + if cwd is not None: + old_dir = os.getcwd() + os.chdir(cwd) + pkg_info, dist = self.create_dist(**metadata) + cmd = check(dist) + cmd.initialize_options() + for name, value in options.items(): + setattr(cmd, name, value) + cmd.ensure_finalized() + cmd.run() + if cwd is not None: + os.chdir(old_dir) + return cmd + + def test_check_metadata(self): + # let's run the command with no metadata at all + # by default, check is checking the metadata + # should have some warnings + cmd = self._run() + assert cmd._warnings == 1 + + # now let's add the required fields + # and run it again, to make sure we don't get + # any warning anymore + metadata = { + 'url': 'xxx', + 'author': 'xxx', + 'author_email': 'xxx', + 'name': 'xxx', + 'version': 'xxx', + } + cmd = self._run(metadata) + assert cmd._warnings == 0 + + # now with the strict mode, we should + # get an error if there are missing metadata + with pytest.raises(DistutilsSetupError): + self._run({}, **{'strict': 1}) + + # and of course, no error when all metadata are present + cmd = self._run(metadata, strict=True) + assert cmd._warnings == 0 + + # now a test with non-ASCII characters + metadata = { + 'url': 'xxx', + 'author': '\u00c9ric', + 'author_email': 'xxx', + 'name': 'xxx', + 'version': 'xxx', + 'description': 'Something about esszet \u00df', + 'long_description': 'More things about esszet \u00df', + } + cmd = self._run(metadata) + assert cmd._warnings == 0 + + def test_check_author_maintainer(self): + for kind in ("author", "maintainer"): + # ensure no warning when author_email or maintainer_email is given + # (the spec allows these fields to take the form "Name ") + metadata = { + 'url': 'xxx', + kind + '_email': 'Name ', + 'name': 'xxx', + 'version': 'xxx', + } + cmd = self._run(metadata) + assert cmd._warnings == 0 + + # the check should not warn if only email is given + metadata[kind + '_email'] = 'name@email.com' + cmd = self._run(metadata) + assert cmd._warnings == 0 + + # the check should not warn if only the name is given + metadata[kind] = "Name" + del metadata[kind + '_email'] + cmd = self._run(metadata) + assert cmd._warnings == 0 + + def test_check_document(self): + pytest.importorskip('docutils') + pkg_info, dist = self.create_dist() + cmd = check(dist) + + # let's see if it detects broken rest + broken_rest = 'title\n===\n\ntest' + msgs = cmd._check_rst_data(broken_rest) + assert len(msgs) == 1 + + # and non-broken rest + rest = 'title\n=====\n\ntest' + msgs = cmd._check_rst_data(rest) + assert len(msgs) == 0 + + def test_check_restructuredtext(self): + pytest.importorskip('docutils') + # let's see if it detects broken rest in long_description + broken_rest = 'title\n===\n\ntest' + pkg_info, dist = self.create_dist(long_description=broken_rest) + cmd = check(dist) + cmd.check_restructuredtext() + assert cmd._warnings == 1 + + # let's see if we have an error with strict=True + metadata = { + 'url': 'xxx', + 'author': 'xxx', + 'author_email': 'xxx', + 'name': 'xxx', + 'version': 'xxx', + 'long_description': broken_rest, + } + with pytest.raises(DistutilsSetupError): + self._run(metadata, **{'strict': 1, 'restructuredtext': 1}) + + # and non-broken rest, including a non-ASCII character to test #12114 + metadata['long_description'] = 'title\n=====\n\ntest \u00df' + cmd = self._run(metadata, strict=True, restructuredtext=True) + assert cmd._warnings == 0 + + # check that includes work to test #31292 + metadata['long_description'] = 'title\n=====\n\n.. include:: includetest.rst' + cmd = self._run(metadata, cwd=HERE, strict=True, restructuredtext=True) + assert cmd._warnings == 0 + + def test_check_restructuredtext_with_syntax_highlight(self): + pytest.importorskip('docutils') + # Don't fail if there is a `code` or `code-block` directive + + example_rst_docs = [ + textwrap.dedent( + """\ + Here's some code: + + .. code:: python + + def foo(): + pass + """ + ), + textwrap.dedent( + """\ + Here's some code: + + .. code-block:: python + + def foo(): + pass + """ + ), + ] + + for rest_with_code in example_rst_docs: + pkg_info, dist = self.create_dist(long_description=rest_with_code) + cmd = check(dist) + cmd.check_restructuredtext() + msgs = cmd._check_rst_data(rest_with_code) + if pygments is not None: + assert len(msgs) == 0 + else: + assert len(msgs) == 1 + assert ( + str(msgs[0][1]) + == 'Cannot analyze code. Pygments package not found.' + ) + + def test_check_all(self): + with pytest.raises(DistutilsSetupError): + self._run({}, **{'strict': 1, 'restructuredtext': 1}) diff --git a/setuptools/_distutils/tests/test_clean.py b/setuptools/_distutils/tests/test_clean.py new file mode 100644 index 0000000000..cc78f30f34 --- /dev/null +++ b/setuptools/_distutils/tests/test_clean.py @@ -0,0 +1,45 @@ +"""Tests for distutils.command.clean.""" + +import os +from distutils.command.clean import clean +from distutils.tests import support + + +class TestClean(support.TempdirManager): + def test_simple_run(self): + pkg_dir, dist = self.create_dist() + cmd = clean(dist) + + # let's add some elements clean should remove + dirs = [ + (d, os.path.join(pkg_dir, d)) + for d in ( + 'build_temp', + 'build_lib', + 'bdist_base', + 'build_scripts', + 'build_base', + ) + ] + + for name, path in dirs: + os.mkdir(path) + setattr(cmd, name, path) + if name == 'build_base': + continue + for f in ('one', 'two', 'three'): + self.write_file(os.path.join(path, f)) + + # let's run the command + cmd.all = 1 + cmd.ensure_finalized() + cmd.run() + + # make sure the files where removed + for _name, path in dirs: + assert not os.path.exists(path), f'{path} was not removed' + + # let's run the command again (should spit warnings but succeed) + cmd.all = 1 + cmd.ensure_finalized() + cmd.run() diff --git a/setuptools/_distutils/tests/test_cmd.py b/setuptools/_distutils/tests/test_cmd.py new file mode 100644 index 0000000000..76e8f5989b --- /dev/null +++ b/setuptools/_distutils/tests/test_cmd.py @@ -0,0 +1,107 @@ +"""Tests for distutils.cmd.""" + +import os +from distutils import debug +from distutils.cmd import Command +from distutils.dist import Distribution +from distutils.errors import DistutilsOptionError + +import pytest + + +class MyCmd(Command): + def initialize_options(self): + pass + + +@pytest.fixture +def cmd(request): + return MyCmd(Distribution()) + + +class TestCommand: + def test_ensure_string_list(self, cmd): + cmd.not_string_list = ['one', 2, 'three'] + cmd.yes_string_list = ['one', 'two', 'three'] + cmd.not_string_list2 = object() + cmd.yes_string_list2 = 'ok' + cmd.ensure_string_list('yes_string_list') + cmd.ensure_string_list('yes_string_list2') + + with pytest.raises(DistutilsOptionError): + cmd.ensure_string_list('not_string_list') + + with pytest.raises(DistutilsOptionError): + cmd.ensure_string_list('not_string_list2') + + cmd.option1 = 'ok,dok' + cmd.ensure_string_list('option1') + assert cmd.option1 == ['ok', 'dok'] + + cmd.option2 = ['xxx', 'www'] + cmd.ensure_string_list('option2') + + cmd.option3 = ['ok', 2] + with pytest.raises(DistutilsOptionError): + cmd.ensure_string_list('option3') + + def test_make_file(self, cmd): + # making sure it raises when infiles is not a string or a list/tuple + with pytest.raises(TypeError): + cmd.make_file(infiles=True, outfile='', func='func', args=()) + + # making sure execute gets called properly + def _execute(func, args, exec_msg, level): + assert exec_msg == 'generating out from in' + + cmd.force = True + cmd.execute = _execute + cmd.make_file(infiles='in', outfile='out', func='func', args=()) + + def test_dump_options(self, cmd): + msgs = [] + + def _announce(msg, level): + msgs.append(msg) + + cmd.announce = _announce + cmd.option1 = 1 + cmd.option2 = 1 + cmd.user_options = [('option1', '', ''), ('option2', '', '')] + cmd.dump_options() + + wanted = ["command options for 'MyCmd':", ' option1 = 1', ' option2 = 1'] + assert msgs == wanted + + def test_ensure_string(self, cmd): + cmd.option1 = 'ok' + cmd.ensure_string('option1') + + cmd.option2 = None + cmd.ensure_string('option2', 'xxx') + assert hasattr(cmd, 'option2') + + cmd.option3 = 1 + with pytest.raises(DistutilsOptionError): + cmd.ensure_string('option3') + + def test_ensure_filename(self, cmd): + cmd.option1 = __file__ + cmd.ensure_filename('option1') + cmd.option2 = 'xxx' + with pytest.raises(DistutilsOptionError): + cmd.ensure_filename('option2') + + def test_ensure_dirname(self, cmd): + cmd.option1 = os.path.dirname(__file__) or os.curdir + cmd.ensure_dirname('option1') + cmd.option2 = 'xxx' + with pytest.raises(DistutilsOptionError): + cmd.ensure_dirname('option2') + + def test_debug_print(self, cmd, capsys, monkeypatch): + cmd.debug_print('xxx') + assert capsys.readouterr().out == '' + monkeypatch.setattr(debug, 'DEBUG', True) + cmd.debug_print('xxx') + assert capsys.readouterr().out == 'xxx\n' diff --git a/setuptools/_distutils/tests/test_config_cmd.py b/setuptools/_distutils/tests/test_config_cmd.py new file mode 100644 index 0000000000..ebee2ef93f --- /dev/null +++ b/setuptools/_distutils/tests/test_config_cmd.py @@ -0,0 +1,87 @@ +"""Tests for distutils.command.config.""" + +import os +import sys +from distutils._log import log +from distutils.command.config import config, dump_file +from distutils.tests import missing_compiler_executable, support + +import more_itertools +import path +import pytest + + +@pytest.fixture(autouse=True) +def info_log(request, monkeypatch): + self = request.instance + self._logs = [] + monkeypatch.setattr(log, 'info', self._info) + + +@support.combine_markers +class TestConfig(support.TempdirManager): + def _info(self, msg, *args): + for line in msg.splitlines(): + self._logs.append(line) + + def test_dump_file(self): + this_file = path.Path(__file__).with_suffix('.py') + with this_file.open(encoding='utf-8') as f: + numlines = more_itertools.ilen(f) + + dump_file(this_file, 'I am the header') + assert len(self._logs) == numlines + 1 + + @pytest.mark.skipif('platform.system() == "Windows"') + def test_search_cpp(self): + cmd = missing_compiler_executable(['preprocessor']) + if cmd is not None: + self.skipTest(f'The {cmd!r} command is not found') + pkg_dir, dist = self.create_dist() + cmd = config(dist) + cmd._check_compiler() + compiler = cmd.compiler + if sys.platform[:3] == "aix" and "xlc" in compiler.preprocessor[0].lower(): + self.skipTest( + 'xlc: The -E option overrides the -P, -o, and -qsyntaxonly options' + ) + + # simple pattern searches + match = cmd.search_cpp(pattern='xxx', body='/* xxx */') + assert match == 0 + + match = cmd.search_cpp(pattern='_configtest', body='/* xxx */') + assert match == 1 + + def test_finalize_options(self): + # finalize_options does a bit of transformation + # on options + pkg_dir, dist = self.create_dist() + cmd = config(dist) + cmd.include_dirs = f'one{os.pathsep}two' + cmd.libraries = 'one' + cmd.library_dirs = f'three{os.pathsep}four' + cmd.ensure_finalized() + + assert cmd.include_dirs == ['one', 'two'] + assert cmd.libraries == ['one'] + assert cmd.library_dirs == ['three', 'four'] + + def test_clean(self): + # _clean removes files + tmp_dir = self.mkdtemp() + f1 = os.path.join(tmp_dir, 'one') + f2 = os.path.join(tmp_dir, 'two') + + self.write_file(f1, 'xxx') + self.write_file(f2, 'xxx') + + for f in (f1, f2): + assert os.path.exists(f) + + pkg_dir, dist = self.create_dist() + cmd = config(dist) + cmd._clean(f1, f2) + + for f in (f1, f2): + assert not os.path.exists(f) diff --git a/setuptools/_distutils/tests/test_core.py b/setuptools/_distutils/tests/test_core.py new file mode 100644 index 0000000000..bad3fb7e83 --- /dev/null +++ b/setuptools/_distutils/tests/test_core.py @@ -0,0 +1,130 @@ +"""Tests for distutils.core.""" + +import distutils.core +import io +import os +import sys +from distutils.dist import Distribution + +import pytest + +# setup script that uses __file__ +setup_using___file__ = """\ + +__file__ + +from distutils.core import setup +setup() +""" + +setup_prints_cwd = """\ + +import os +print(os.getcwd()) + +from distutils.core import setup +setup() +""" + +setup_does_nothing = """\ +from distutils.core import setup +setup() +""" + + +setup_defines_subclass = """\ +from distutils.core import setup +from distutils.command.install import install as _install + +class install(_install): + sub_commands = _install.sub_commands + ['cmd'] + +setup(cmdclass={'install': install}) +""" + +setup_within_if_main = """\ +from distutils.core import setup + +def main(): + return setup(name="setup_within_if_main") + +if __name__ == "__main__": + main() +""" + + +@pytest.fixture(autouse=True) +def save_stdout(monkeypatch): + monkeypatch.setattr(sys, 'stdout', sys.stdout) + + +@pytest.fixture +def temp_file(tmp_path): + return tmp_path / 'file' + + +@pytest.mark.usefixtures('save_env') +@pytest.mark.usefixtures('save_argv') +class TestCore: + def test_run_setup_provides_file(self, temp_file): + # Make sure the script can use __file__; if that's missing, the test + # setup.py script will raise NameError. + temp_file.write_text(setup_using___file__, encoding='utf-8') + distutils.core.run_setup(temp_file) + + def test_run_setup_preserves_sys_argv(self, temp_file): + # Make sure run_setup does not clobber sys.argv + argv_copy = sys.argv.copy() + temp_file.write_text(setup_does_nothing, encoding='utf-8') + distutils.core.run_setup(temp_file) + assert sys.argv == argv_copy + + def test_run_setup_defines_subclass(self, temp_file): + # Make sure the script can use __file__; if that's missing, the test + # setup.py script will raise NameError. + temp_file.write_text(setup_defines_subclass, encoding='utf-8') + dist = distutils.core.run_setup(temp_file) + install = dist.get_command_obj('install') + assert 'cmd' in install.sub_commands + + def test_run_setup_uses_current_dir(self, tmp_path): + """ + Test that the setup script is run with the current directory + as its own current directory. + """ + sys.stdout = io.StringIO() + cwd = os.getcwd() + + # Create a directory and write the setup.py file there: + setup_py = tmp_path / 'setup.py' + setup_py.write_text(setup_prints_cwd, encoding='utf-8') + distutils.core.run_setup(setup_py) + + output = sys.stdout.getvalue() + if output.endswith("\n"): + output = output[:-1] + assert cwd == output + + def test_run_setup_within_if_main(self, temp_file): + temp_file.write_text(setup_within_if_main, encoding='utf-8') + dist = distutils.core.run_setup(temp_file, stop_after="config") + assert isinstance(dist, Distribution) + assert dist.get_name() == "setup_within_if_main" + + def test_run_commands(self, temp_file): + sys.argv = ['setup.py', 'build'] + temp_file.write_text(setup_within_if_main, encoding='utf-8') + dist = distutils.core.run_setup(temp_file, stop_after="commandline") + assert 'build' not in dist.have_run + distutils.core.run_commands(dist) + assert 'build' in dist.have_run + + def test_debug_mode(self, capsys, monkeypatch): + # this covers the code called when DEBUG is set + sys.argv = ['setup.py', '--name'] + distutils.core.setup(name='bar') + assert capsys.readouterr().out == 'bar\n' + monkeypatch.setattr(distutils.core, 'DEBUG', True) + distutils.core.setup(name='bar') + wanted = "options (after parsing config files):\n" + assert capsys.readouterr().out.startswith(wanted) diff --git a/setuptools/_distutils/tests/test_dir_util.py b/setuptools/_distutils/tests/test_dir_util.py new file mode 100644 index 0000000000..326cb34614 --- /dev/null +++ b/setuptools/_distutils/tests/test_dir_util.py @@ -0,0 +1,139 @@ +"""Tests for distutils.dir_util.""" + +import os +import pathlib +import stat +import sys +import unittest.mock as mock +from distutils import dir_util, errors +from distutils.dir_util import ( + copy_tree, + create_tree, + ensure_relative, + mkpath, + remove_tree, +) +from distutils.tests import support + +import jaraco.path +import path +import pytest + + +@pytest.fixture(autouse=True) +def stuff(request, monkeypatch, distutils_managed_tempdir): + self = request.instance + tmp_dir = self.mkdtemp() + self.root_target = os.path.join(tmp_dir, 'deep') + self.target = os.path.join(self.root_target, 'here') + self.target2 = os.path.join(tmp_dir, 'deep2') + + +class TestDirUtil(support.TempdirManager): + def test_mkpath_remove_tree_verbosity(self, caplog): + mkpath(self.target, verbose=False) + assert not caplog.records + remove_tree(self.root_target, verbose=False) + + mkpath(self.target, verbose=True) + wanted = [f'creating {self.target}'] + assert caplog.messages == wanted + caplog.clear() + + remove_tree(self.root_target, verbose=True) + wanted = [f"removing '{self.root_target}' (and everything under it)"] + assert caplog.messages == wanted + + @pytest.mark.skipif("platform.system() == 'Windows'") + def test_mkpath_with_custom_mode(self): + # Get and set the current umask value for testing mode bits. + umask = os.umask(0o002) + os.umask(umask) + mkpath(self.target, 0o700) + assert stat.S_IMODE(os.stat(self.target).st_mode) == 0o700 & ~umask + mkpath(self.target2, 0o555) + assert stat.S_IMODE(os.stat(self.target2).st_mode) == 0o555 & ~umask + + def test_create_tree_verbosity(self, caplog): + create_tree(self.root_target, ['one', 'two', 'three'], verbose=False) + assert caplog.messages == [] + remove_tree(self.root_target, verbose=False) + + wanted = [f'creating {self.root_target}'] + create_tree(self.root_target, ['one', 'two', 'three'], verbose=True) + assert caplog.messages == wanted + + remove_tree(self.root_target, verbose=False) + + def test_copy_tree_verbosity(self, caplog): + mkpath(self.target, verbose=False) + + copy_tree(self.target, self.target2, verbose=False) + assert caplog.messages == [] + + remove_tree(self.root_target, verbose=False) + + mkpath(self.target, verbose=False) + a_file = path.Path(self.target) / 'ok.txt' + jaraco.path.build({'ok.txt': 'some content'}, self.target) + + wanted = [f'copying {a_file} -> {self.target2}'] + copy_tree(self.target, self.target2, verbose=True) + assert caplog.messages == wanted + + remove_tree(self.root_target, verbose=False) + remove_tree(self.target2, verbose=False) + + def test_copy_tree_skips_nfs_temp_files(self): + mkpath(self.target, verbose=False) + + jaraco.path.build({'ok.txt': 'some content', '.nfs123abc': ''}, self.target) + + copy_tree(self.target, self.target2) + assert os.listdir(self.target2) == ['ok.txt'] + + remove_tree(self.root_target, verbose=False) + remove_tree(self.target2, verbose=False) + + def test_ensure_relative(self): + if os.sep == '/': + assert ensure_relative('/home/foo') == 'home/foo' + assert ensure_relative('some/path') == 'some/path' + else: # \\ + assert ensure_relative('c:\\home\\foo') == 'c:home\\foo' + assert ensure_relative('home\\foo') == 'home\\foo' + + def test_copy_tree_exception_in_listdir(self): + """ + An exception in listdir should raise a DistutilsFileError + """ + with ( + mock.patch("os.listdir", side_effect=OSError()), + pytest.raises(errors.DistutilsFileError), + ): + src = self.tempdirs[-1] + dir_util.copy_tree(src, None) + + def test_mkpath_exception_uncached(self, monkeypatch, tmp_path): + """ + Caching should not remember failed attempts. + + pypa/distutils#304 + """ + + class FailPath(pathlib.Path): + def mkdir(self, *args, **kwargs): + raise OSError("Failed to create directory") + + if sys.version_info < (3, 12): + _flavour = pathlib.Path()._flavour + + target = tmp_path / 'foodir' + + with pytest.raises(errors.DistutilsFileError): + mkpath(FailPath(target)) + + assert not target.exists() + + mkpath(target) + assert target.exists() diff --git a/setuptools/_distutils/tests/test_dist.py b/setuptools/_distutils/tests/test_dist.py new file mode 100644 index 0000000000..2c5beebe64 --- /dev/null +++ b/setuptools/_distutils/tests/test_dist.py @@ -0,0 +1,552 @@ +"""Tests for distutils.dist.""" + +import email +import email.generator +import email.policy +import functools +import io +import os +import sys +import textwrap +import unittest.mock as mock +import warnings +from distutils.cmd import Command +from distutils.dist import Distribution, fix_help_options +from distutils.tests import support +from typing import ClassVar + +import jaraco.path +import pytest + +pydistutils_cfg = '.' * (os.name == 'posix') + 'pydistutils.cfg' + + +class test_dist(Command): + """Sample distutils extension command.""" + + user_options: ClassVar[list[tuple[str, str, str]]] = [ + ("sample-option=", "S", "help text"), + ] + + def initialize_options(self): + self.sample_option = None + + +class TestDistribution(Distribution): + """Distribution subclasses that avoids the default search for + configuration files. + + The ._config_files attribute must be set before + .parse_config_files() is called. + """ + + def find_config_files(self): + return self._config_files + + +@pytest.fixture +def clear_argv(): + del sys.argv[1:] + + +@support.combine_markers +@pytest.mark.usefixtures('save_env') +@pytest.mark.usefixtures('save_argv') +class TestDistributionBehavior(support.TempdirManager): + def create_distribution(self, configfiles=()): + d = TestDistribution() + d._config_files = configfiles + d.parse_config_files() + d.parse_command_line() + return d + + def test_command_packages_unspecified(self, clear_argv): + sys.argv.append("build") + d = self.create_distribution() + assert d.get_command_packages() == ["distutils.command"] + + def test_command_packages_cmdline(self, clear_argv): + from distutils.tests.test_dist import test_dist + + sys.argv.extend([ + "--command-packages", + "foo.bar,distutils.tests", + "test_dist", + "-Ssometext", + ]) + d = self.create_distribution() + # let's actually try to load our test command: + assert d.get_command_packages() == [ + "distutils.command", + "foo.bar", + "distutils.tests", + ] + cmd = d.get_command_obj("test_dist") + assert isinstance(cmd, test_dist) + assert cmd.sample_option == "sometext" + + @pytest.mark.skipif( + 'distutils' not in Distribution.parse_config_files.__module__, + reason='Cannot test when virtualenv has monkey-patched Distribution', + ) + def test_venv_install_options(self, tmp_path, clear_argv): + sys.argv.append("install") + file = str(tmp_path / 'file') + + fakepath = '/somedir' + + jaraco.path.build({ + file: f""" + [install] + install-base = {fakepath} + install-platbase = {fakepath} + install-lib = {fakepath} + install-platlib = {fakepath} + install-purelib = {fakepath} + install-headers = {fakepath} + install-scripts = {fakepath} + install-data = {fakepath} + prefix = {fakepath} + exec-prefix = {fakepath} + home = {fakepath} + user = {fakepath} + root = {fakepath} + """, + }) + + # Base case: Not in a Virtual Environment + with mock.patch.multiple(sys, prefix='/a', base_prefix='/a'): + d = self.create_distribution([file]) + + option_tuple = (file, fakepath) + + result_dict = { + 'install_base': option_tuple, + 'install_platbase': option_tuple, + 'install_lib': option_tuple, + 'install_platlib': option_tuple, + 'install_purelib': option_tuple, + 'install_headers': option_tuple, + 'install_scripts': option_tuple, + 'install_data': option_tuple, + 'prefix': option_tuple, + 'exec_prefix': option_tuple, + 'home': option_tuple, + 'user': option_tuple, + 'root': option_tuple, + } + + assert sorted(d.command_options.get('install').keys()) == sorted( + result_dict.keys() + ) + + for key, value in d.command_options.get('install').items(): + assert value == result_dict[key] + + # Test case: In a Virtual Environment + with mock.patch.multiple(sys, prefix='/a', base_prefix='/b'): + d = self.create_distribution([file]) + + for key in result_dict.keys(): + assert key not in d.command_options.get('install', {}) + + def test_command_packages_configfile(self, tmp_path, clear_argv): + sys.argv.append("build") + file = str(tmp_path / "file") + jaraco.path.build({ + file: """ + [global] + command_packages = foo.bar, splat + """, + }) + + d = self.create_distribution([file]) + assert d.get_command_packages() == ["distutils.command", "foo.bar", "splat"] + + # ensure command line overrides config: + sys.argv[1:] = ["--command-packages", "spork", "build"] + d = self.create_distribution([file]) + assert d.get_command_packages() == ["distutils.command", "spork"] + + # Setting --command-packages to '' should cause the default to + # be used even if a config file specified something else: + sys.argv[1:] = ["--command-packages", "", "build"] + d = self.create_distribution([file]) + assert d.get_command_packages() == ["distutils.command"] + + def test_empty_options(self, request): + # an empty options dictionary should not stay in the + # list of attributes + + # catching warnings + warns = [] + + def _warn(msg): + warns.append(msg) + + request.addfinalizer( + functools.partial(setattr, warnings, 'warn', warnings.warn) + ) + warnings.warn = _warn + dist = Distribution( + attrs={ + 'author': 'xxx', + 'name': 'xxx', + 'version': 'xxx', + 'url': 'xxxx', + 'options': {}, + } + ) + + assert len(warns) == 0 + assert 'options' not in dir(dist) + + def test_finalize_options(self): + attrs = {'keywords': 'one,two', 'platforms': 'one,two'} + + dist = Distribution(attrs=attrs) + dist.finalize_options() + + # finalize_option splits platforms and keywords + assert dist.metadata.platforms == ['one', 'two'] + assert dist.metadata.keywords == ['one', 'two'] + + attrs = {'keywords': 'foo bar', 'platforms': 'foo bar'} + dist = Distribution(attrs=attrs) + dist.finalize_options() + assert dist.metadata.platforms == ['foo bar'] + assert dist.metadata.keywords == ['foo bar'] + + def test_get_command_packages(self): + dist = Distribution() + assert dist.command_packages is None + cmds = dist.get_command_packages() + assert cmds == ['distutils.command'] + assert dist.command_packages == ['distutils.command'] + + dist.command_packages = 'one,two' + cmds = dist.get_command_packages() + assert cmds == ['distutils.command', 'one', 'two'] + + def test_announce(self): + # make sure the level is known + dist = Distribution() + with pytest.raises(TypeError): + dist.announce('ok', level='ok2') + + def test_find_config_files_disable(self, temp_home): + # Ticket #1180: Allow user to disable their home config file. + jaraco.path.build({pydistutils_cfg: '[distutils]\n'}, temp_home) + + d = Distribution() + all_files = d.find_config_files() + + d = Distribution(attrs={'script_args': ['--no-user-cfg']}) + files = d.find_config_files() + + # make sure --no-user-cfg disables the user cfg file + assert len(all_files) - 1 == len(files) + + def test_script_args_list_coercion(self): + d = Distribution(attrs={'script_args': ('build', '--no-user-cfg')}) + + # make sure script_args is a list even if it started as a different iterable + assert d.script_args == ['build', '--no-user-cfg'] + + @pytest.mark.skipif( + 'platform.system() == "Windows"', + reason='Windows does not honor chmod 000', + ) + def test_find_config_files_permission_error(self, fake_home): + """ + Finding config files should not fail when directory is inaccessible. + """ + fake_home.joinpath(pydistutils_cfg).write_text('', encoding='utf-8') + fake_home.chmod(0o000) + Distribution().find_config_files() + + +@pytest.mark.usefixtures('save_env') +@pytest.mark.usefixtures('save_argv') +class TestMetadata(support.TempdirManager): + def format_metadata(self, dist): + sio = io.StringIO() + dist.metadata.write_pkg_file(sio) + return sio.getvalue() + + def test_simple_metadata(self): + attrs = {"name": "package", "version": "1.0"} + dist = Distribution(attrs) + meta = self.format_metadata(dist) + assert "Metadata-Version: 1.0" in meta + assert "provides:" not in meta.lower() + assert "requires:" not in meta.lower() + assert "obsoletes:" not in meta.lower() + + def test_provides(self): + attrs = { + "name": "package", + "version": "1.0", + "provides": ["package", "package.sub"], + } + dist = Distribution(attrs) + assert dist.metadata.get_provides() == ["package", "package.sub"] + assert dist.get_provides() == ["package", "package.sub"] + meta = self.format_metadata(dist) + assert "Metadata-Version: 1.1" in meta + assert "requires:" not in meta.lower() + assert "obsoletes:" not in meta.lower() + + def test_provides_illegal(self): + with pytest.raises(ValueError): + Distribution( + {"name": "package", "version": "1.0", "provides": ["my.pkg (splat)"]}, + ) + + def test_requires(self): + attrs = { + "name": "package", + "version": "1.0", + "requires": ["other", "another (==1.0)"], + } + dist = Distribution(attrs) + assert dist.metadata.get_requires() == ["other", "another (==1.0)"] + assert dist.get_requires() == ["other", "another (==1.0)"] + meta = self.format_metadata(dist) + assert "Metadata-Version: 1.1" in meta + assert "provides:" not in meta.lower() + assert "Requires: other" in meta + assert "Requires: another (==1.0)" in meta + assert "obsoletes:" not in meta.lower() + + def test_requires_illegal(self): + with pytest.raises(ValueError): + Distribution( + {"name": "package", "version": "1.0", "requires": ["my.pkg (splat)"]}, + ) + + def test_requires_to_list(self): + attrs = {"name": "package", "requires": iter(["other"])} + dist = Distribution(attrs) + assert isinstance(dist.metadata.requires, list) + + def test_obsoletes(self): + attrs = { + "name": "package", + "version": "1.0", + "obsoletes": ["other", "another (<1.0)"], + } + dist = Distribution(attrs) + assert dist.metadata.get_obsoletes() == ["other", "another (<1.0)"] + assert dist.get_obsoletes() == ["other", "another (<1.0)"] + meta = self.format_metadata(dist) + assert "Metadata-Version: 1.1" in meta + assert "provides:" not in meta.lower() + assert "requires:" not in meta.lower() + assert "Obsoletes: other" in meta + assert "Obsoletes: another (<1.0)" in meta + + def test_obsoletes_illegal(self): + with pytest.raises(ValueError): + Distribution( + {"name": "package", "version": "1.0", "obsoletes": ["my.pkg (splat)"]}, + ) + + def test_obsoletes_to_list(self): + attrs = {"name": "package", "obsoletes": iter(["other"])} + dist = Distribution(attrs) + assert isinstance(dist.metadata.obsoletes, list) + + def test_classifier(self): + attrs = { + 'name': 'Boa', + 'version': '3.0', + 'classifiers': ['Programming Language :: Python :: 3'], + } + dist = Distribution(attrs) + assert dist.get_classifiers() == ['Programming Language :: Python :: 3'] + meta = self.format_metadata(dist) + assert 'Metadata-Version: 1.1' in meta + + def test_classifier_invalid_type(self, caplog): + attrs = { + 'name': 'Boa', + 'version': '3.0', + 'classifiers': ('Programming Language :: Python :: 3',), + } + d = Distribution(attrs) + # should have warning about passing a non-list + assert 'should be a list' in caplog.messages[0] + # should be converted to a list + assert isinstance(d.metadata.classifiers, list) + assert d.metadata.classifiers == list(attrs['classifiers']) + + def test_keywords(self): + attrs = { + 'name': 'Monty', + 'version': '1.0', + 'keywords': ['spam', 'eggs', 'life of brian'], + } + dist = Distribution(attrs) + assert dist.get_keywords() == ['spam', 'eggs', 'life of brian'] + + def test_keywords_invalid_type(self, caplog): + attrs = { + 'name': 'Monty', + 'version': '1.0', + 'keywords': ('spam', 'eggs', 'life of brian'), + } + d = Distribution(attrs) + # should have warning about passing a non-list + assert 'should be a list' in caplog.messages[0] + # should be converted to a list + assert isinstance(d.metadata.keywords, list) + assert d.metadata.keywords == list(attrs['keywords']) + + def test_platforms(self): + attrs = { + 'name': 'Monty', + 'version': '1.0', + 'platforms': ['GNU/Linux', 'Some Evil Platform'], + } + dist = Distribution(attrs) + assert dist.get_platforms() == ['GNU/Linux', 'Some Evil Platform'] + + def test_platforms_invalid_types(self, caplog): + attrs = { + 'name': 'Monty', + 'version': '1.0', + 'platforms': ('GNU/Linux', 'Some Evil Platform'), + } + d = Distribution(attrs) + # should have warning about passing a non-list + assert 'should be a list' in caplog.messages[0] + # should be converted to a list + assert isinstance(d.metadata.platforms, list) + assert d.metadata.platforms == list(attrs['platforms']) + + def test_download_url(self): + attrs = { + 'name': 'Boa', + 'version': '3.0', + 'download_url': 'http://example.org/boa', + } + dist = Distribution(attrs) + meta = self.format_metadata(dist) + assert 'Metadata-Version: 1.1' in meta + + def test_long_description(self): + long_desc = textwrap.dedent( + """\ + example:: + We start here + and continue here + and end here.""" + ) + attrs = {"name": "package", "version": "1.0", "long_description": long_desc} + + dist = Distribution(attrs) + meta = self.format_metadata(dist) + meta = meta.replace('\n' + 8 * ' ', '\n') + assert long_desc in meta + + def test_custom_pydistutils(self, temp_home): + """ + pydistutils.cfg is found + """ + jaraco.path.build({pydistutils_cfg: ''}, temp_home) + config_path = temp_home / pydistutils_cfg + + assert str(config_path) in Distribution().find_config_files() + + def test_extra_pydistutils(self, monkeypatch, tmp_path): + jaraco.path.build({'overrides.cfg': ''}, tmp_path) + filename = tmp_path / 'overrides.cfg' + monkeypatch.setenv('DIST_EXTRA_CONFIG', str(filename)) + assert str(filename) in Distribution().find_config_files() + + def test_fix_help_options(self): + help_tuples = [('a', 'b', 'c', 'd'), (1, 2, 3, 4)] + fancy_options = fix_help_options(help_tuples) + assert fancy_options[0] == ('a', 'b', 'c') + assert fancy_options[1] == (1, 2, 3) + + def test_show_help(self, request, capsys): + # smoke test, just makes sure some help is displayed + dist = Distribution() + sys.argv = [] + dist.help = True + dist.script_name = 'setup.py' + dist.parse_command_line() + + output = [ + line for line in capsys.readouterr().out.split('\n') if line.strip() != '' + ] + assert output + + def test_read_metadata(self): + attrs = { + "name": "package", + "version": "1.0", + "long_description": "desc", + "description": "xxx", + "download_url": "http://example.com", + "keywords": ['one', 'two'], + "requires": ['foo'], + } + + dist = Distribution(attrs) + metadata = dist.metadata + + # write it then reloads it + PKG_INFO = io.StringIO() + metadata.write_pkg_file(PKG_INFO) + PKG_INFO.seek(0) + metadata.read_pkg_file(PKG_INFO) + + assert metadata.name == "package" + assert metadata.version == "1.0" + assert metadata.description == "xxx" + assert metadata.download_url == 'http://example.com' + assert metadata.keywords == ['one', 'two'] + assert metadata.platforms is None + assert metadata.obsoletes is None + assert metadata.requires == ['foo'] + + def test_round_trip_through_email_generator(self): + """ + In pypa/setuptools#4033, it was shown that once PKG-INFO is + re-generated using ``email.generator.Generator``, some control + characters might cause problems. + """ + # Given a PKG-INFO file ... + attrs = { + "name": "package", + "version": "1.0", + "long_description": "hello\x0b\nworld\n", + } + dist = Distribution(attrs) + metadata = dist.metadata + + with io.StringIO() as buffer: + metadata.write_pkg_file(buffer) + msg = buffer.getvalue() + + # ... when it is read and re-written using stdlib's email library, + orig = email.message_from_string(msg) + policy = email.policy.EmailPolicy( + utf8=True, + mangle_from_=False, + max_line_length=0, + ) + with io.StringIO() as buffer: + email.generator.Generator(buffer, policy=policy).flatten(orig) + + buffer.seek(0) + regen = email.message_from_file(buffer) + + # ... then it should be the same as the original + # (except for the specific line break characters) + orig_desc = set(orig["Description"].splitlines()) + regen_desc = set(regen["Description"].splitlines()) + assert regen_desc == orig_desc diff --git a/setuptools/_distutils/tests/test_extension.py b/setuptools/_distutils/tests/test_extension.py new file mode 100644 index 0000000000..5e8e768223 --- /dev/null +++ b/setuptools/_distutils/tests/test_extension.py @@ -0,0 +1,117 @@ +"""Tests for distutils.extension.""" + +import os +import pathlib +import warnings +from distutils.extension import Extension, read_setup_file + +import pytest +from test.support.warnings_helper import check_warnings + + +class TestExtension: + def test_read_setup_file(self): + # trying to read a Setup file + # (sample extracted from the PyGame project) + setup = os.path.join(os.path.dirname(__file__), 'Setup.sample') + + exts = read_setup_file(setup) + names = [ext.name for ext in exts] + names.sort() + + # here are the extensions read_setup_file should have created + # out of the file + wanted = [ + '_arraysurfarray', + '_camera', + '_numericsndarray', + '_numericsurfarray', + 'base', + 'bufferproxy', + 'cdrom', + 'color', + 'constants', + 'display', + 'draw', + 'event', + 'fastevent', + 'font', + 'gfxdraw', + 'image', + 'imageext', + 'joystick', + 'key', + 'mask', + 'mixer', + 'mixer_music', + 'mouse', + 'movie', + 'overlay', + 'pixelarray', + 'pypm', + 'rect', + 'rwobject', + 'scrap', + 'surface', + 'surflock', + 'time', + 'transform', + ] + + assert names == wanted + + def test_extension_init(self): + # the first argument, which is the name, must be a string + with pytest.raises(TypeError): + Extension(1, []) + ext = Extension('name', []) + assert ext.name == 'name' + + # the second argument, which is the list of files, must + # be an iterable of strings or PathLike objects, and not a string + with pytest.raises(TypeError): + Extension('name', 'file') + with pytest.raises(TypeError): + Extension('name', ['file', 1]) + ext = Extension('name', ['file1', 'file2']) + assert ext.sources == ['file1', 'file2'] + ext = Extension('name', [pathlib.Path('file1'), pathlib.Path('file2')]) + assert ext.sources == ['file1', 'file2'] + + # any non-string iterable of strings or PathLike objects should work + ext = Extension('name', ('file1', 'file2')) # tuple + assert ext.sources == ['file1', 'file2'] + ext = Extension('name', {'file1', 'file2'}) # set + assert sorted(ext.sources) == ['file1', 'file2'] + ext = Extension('name', iter(['file1', 'file2'])) # iterator + assert ext.sources == ['file1', 'file2'] + ext = Extension('name', [pathlib.Path('file1'), 'file2']) # mixed types + assert ext.sources == ['file1', 'file2'] + + # others arguments have defaults + for attr in ( + 'include_dirs', + 'define_macros', + 'undef_macros', + 'library_dirs', + 'libraries', + 'runtime_library_dirs', + 'extra_objects', + 'extra_compile_args', + 'extra_link_args', + 'export_symbols', + 'swig_opts', + 'depends', + ): + assert getattr(ext, attr) == [] + + assert ext.language is None + assert ext.optional is None + + # if there are unknown keyword options, warn about them + with check_warnings() as w: + warnings.simplefilter('always') + ext = Extension('name', ['file1', 'file2'], chic=True) + + assert len(w.warnings) == 1 + assert str(w.warnings[0].message) == "Unknown Extension options: 'chic'" diff --git a/setuptools/_distutils/tests/test_file_util.py b/setuptools/_distutils/tests/test_file_util.py new file mode 100644 index 0000000000..a75d4a0317 --- /dev/null +++ b/setuptools/_distutils/tests/test_file_util.py @@ -0,0 +1,95 @@ +"""Tests for distutils.file_util.""" + +import errno +import os +import unittest.mock as mock +from distutils.errors import DistutilsFileError +from distutils.file_util import copy_file, move_file + +import jaraco.path +import pytest + + +@pytest.fixture(autouse=True) +def stuff(request, tmp_path): + self = request.instance + self.source = tmp_path / 'f1' + self.target = tmp_path / 'f2' + self.target_dir = tmp_path / 'd1' + + +class TestFileUtil: + def test_move_file_verbosity(self, caplog): + jaraco.path.build({self.source: 'some content'}) + + move_file(self.source, self.target, verbose=False) + assert not caplog.messages + + # back to original state + move_file(self.target, self.source, verbose=False) + + move_file(self.source, self.target, verbose=True) + wanted = [f'moving {self.source} -> {self.target}'] + assert caplog.messages == wanted + + # back to original state + move_file(self.target, self.source, verbose=False) + + caplog.clear() + # now the target is a dir + os.mkdir(self.target_dir) + move_file(self.source, self.target_dir, verbose=True) + wanted = [f'moving {self.source} -> {self.target_dir}'] + assert caplog.messages == wanted + + def test_move_file_exception_unpacking_rename(self): + # see issue 22182 + with ( + mock.patch("os.rename", side_effect=OSError("wrong", 1)), + pytest.raises(DistutilsFileError), + ): + jaraco.path.build({self.source: 'spam eggs'}) + move_file(self.source, self.target, verbose=False) + + def test_move_file_exception_unpacking_unlink(self): + # see issue 22182 + with ( + mock.patch("os.rename", side_effect=OSError(errno.EXDEV, "wrong")), + mock.patch("os.unlink", side_effect=OSError("wrong", 1)), + pytest.raises(DistutilsFileError), + ): + jaraco.path.build({self.source: 'spam eggs'}) + move_file(self.source, self.target, verbose=False) + + def test_copy_file_hard_link(self): + jaraco.path.build({self.source: 'some content'}) + # Check first that copy_file() will not fall back on copying the file + # instead of creating the hard link. + try: + os.link(self.source, self.target) + except OSError as e: + self.skipTest(f'os.link: {e}') + else: + self.target.unlink() + st = os.stat(self.source) + copy_file(self.source, self.target, link='hard') + st2 = os.stat(self.source) + st3 = os.stat(self.target) + assert os.path.samestat(st, st2), (st, st2) + assert os.path.samestat(st2, st3), (st2, st3) + assert self.source.read_text(encoding='utf-8') == 'some content' + + def test_copy_file_hard_link_failure(self): + # If hard linking fails, copy_file() falls back on copying file + # (some special filesystems don't support hard linking even under + # Unix, see issue #8876). + jaraco.path.build({self.source: 'some content'}) + st = os.stat(self.source) + with mock.patch("os.link", side_effect=OSError(0, "linking unsupported")): + copy_file(self.source, self.target, link='hard') + st2 = os.stat(self.source) + st3 = os.stat(self.target) + assert os.path.samestat(st, st2), (st, st2) + assert not os.path.samestat(st2, st3), (st2, st3) + for fn in (self.source, self.target): + assert fn.read_text(encoding='utf-8') == 'some content' diff --git a/setuptools/_distutils/tests/test_filelist.py b/setuptools/_distutils/tests/test_filelist.py new file mode 100644 index 0000000000..130e6fb53b --- /dev/null +++ b/setuptools/_distutils/tests/test_filelist.py @@ -0,0 +1,336 @@ +"""Tests for distutils.filelist.""" + +import logging +import os +import re +from distutils import debug, filelist +from distutils.errors import DistutilsTemplateError +from distutils.filelist import FileList, glob_to_re, translate_pattern + +import jaraco.path +import pytest + +from .compat import py39 as os_helper + +MANIFEST_IN = """\ +include ok +include xo +exclude xo +include foo.tmp +include buildout.cfg +global-include *.x +global-include *.txt +global-exclude *.tmp +recursive-include f *.oo +recursive-exclude global *.x +graft dir +prune dir3 +""" + + +def make_local_path(s): + """Converts '/' in a string to os.sep""" + return s.replace('/', os.sep) + + +class TestFileList: + def assertNoWarnings(self, caplog): + warnings = [rec for rec in caplog.records if rec.levelno == logging.WARNING] + assert not warnings + caplog.clear() + + def assertWarnings(self, caplog): + warnings = [rec for rec in caplog.records if rec.levelno == logging.WARNING] + assert warnings + caplog.clear() + + def test_glob_to_re(self): + sep = os.sep + if os.sep == '\\': + sep = re.escape(os.sep) + + for glob, regex in ( + # simple cases + ('foo*', r'(?s:foo[^%(sep)s]*)\Z'), + ('foo?', r'(?s:foo[^%(sep)s])\Z'), + ('foo??', r'(?s:foo[^%(sep)s][^%(sep)s])\Z'), + # special cases + (r'foo\\*', r'(?s:foo\\\\[^%(sep)s]*)\Z'), + (r'foo\\\*', r'(?s:foo\\\\\\[^%(sep)s]*)\Z'), + ('foo????', r'(?s:foo[^%(sep)s][^%(sep)s][^%(sep)s][^%(sep)s])\Z'), + (r'foo\\??', r'(?s:foo\\\\[^%(sep)s][^%(sep)s])\Z'), + ): + regex = regex % {'sep': sep} + assert glob_to_re(glob) == regex + + def test_process_template_line(self): + # testing all MANIFEST.in template patterns + file_list = FileList() + mlp = make_local_path + + # simulated file list + file_list.allfiles = [ + 'foo.tmp', + 'ok', + 'xo', + 'four.txt', + 'buildout.cfg', + # filelist does not filter out VCS directories, + # it's sdist that does + mlp('.hg/last-message.txt'), + mlp('global/one.txt'), + mlp('global/two.txt'), + mlp('global/files.x'), + mlp('global/here.tmp'), + mlp('f/o/f.oo'), + mlp('dir/graft-one'), + mlp('dir/dir2/graft2'), + mlp('dir3/ok'), + mlp('dir3/sub/ok.txt'), + ] + + for line in MANIFEST_IN.split('\n'): + if line.strip() == '': + continue + file_list.process_template_line(line) + + wanted = [ + 'ok', + 'buildout.cfg', + 'four.txt', + mlp('.hg/last-message.txt'), + mlp('global/one.txt'), + mlp('global/two.txt'), + mlp('f/o/f.oo'), + mlp('dir/graft-one'), + mlp('dir/dir2/graft2'), + ] + + assert file_list.files == wanted + + def test_debug_print(self, capsys, monkeypatch): + file_list = FileList() + file_list.debug_print('xxx') + assert capsys.readouterr().out == '' + + monkeypatch.setattr(debug, 'DEBUG', True) + file_list.debug_print('xxx') + assert capsys.readouterr().out == 'xxx\n' + + def test_set_allfiles(self): + file_list = FileList() + files = ['a', 'b', 'c'] + file_list.set_allfiles(files) + assert file_list.allfiles == files + + def test_remove_duplicates(self): + file_list = FileList() + file_list.files = ['a', 'b', 'a', 'g', 'c', 'g'] + # files must be sorted beforehand (sdist does it) + file_list.sort() + file_list.remove_duplicates() + assert file_list.files == ['a', 'b', 'c', 'g'] + + def test_translate_pattern(self): + # not regex + assert hasattr(translate_pattern('a', anchor=True, is_regex=False), 'search') + + # is a regex + regex = re.compile('a') + assert translate_pattern(regex, anchor=True, is_regex=True) == regex + + # plain string flagged as regex + assert hasattr(translate_pattern('a', anchor=True, is_regex=True), 'search') + + # glob support + assert translate_pattern('*.py', anchor=True, is_regex=False).search( + 'filelist.py' + ) + + def test_exclude_pattern(self): + # return False if no match + file_list = FileList() + assert not file_list.exclude_pattern('*.py') + + # return True if files match + file_list = FileList() + file_list.files = ['a.py', 'b.py'] + assert file_list.exclude_pattern('*.py') + + # test excludes + file_list = FileList() + file_list.files = ['a.py', 'a.txt'] + file_list.exclude_pattern('*.py') + assert file_list.files == ['a.txt'] + + def test_include_pattern(self): + # return False if no match + file_list = FileList() + file_list.set_allfiles([]) + assert not file_list.include_pattern('*.py') + + # return True if files match + file_list = FileList() + file_list.set_allfiles(['a.py', 'b.txt']) + assert file_list.include_pattern('*.py') + + # test * matches all files + file_list = FileList() + assert file_list.allfiles is None + file_list.set_allfiles(['a.py', 'b.txt']) + file_list.include_pattern('*') + assert file_list.allfiles == ['a.py', 'b.txt'] + + def test_process_template(self, caplog): + mlp = make_local_path + # invalid lines + file_list = FileList() + for action in ( + 'include', + 'exclude', + 'global-include', + 'global-exclude', + 'recursive-include', + 'recursive-exclude', + 'graft', + 'prune', + 'blarg', + ): + with pytest.raises(DistutilsTemplateError): + file_list.process_template_line(action) + + # include + file_list = FileList() + file_list.set_allfiles(['a.py', 'b.txt', mlp('d/c.py')]) + + file_list.process_template_line('include *.py') + assert file_list.files == ['a.py'] + self.assertNoWarnings(caplog) + + file_list.process_template_line('include *.rb') + assert file_list.files == ['a.py'] + self.assertWarnings(caplog) + + # exclude + file_list = FileList() + file_list.files = ['a.py', 'b.txt', mlp('d/c.py')] + + file_list.process_template_line('exclude *.py') + assert file_list.files == ['b.txt', mlp('d/c.py')] + self.assertNoWarnings(caplog) + + file_list.process_template_line('exclude *.rb') + assert file_list.files == ['b.txt', mlp('d/c.py')] + self.assertWarnings(caplog) + + # global-include + file_list = FileList() + file_list.set_allfiles(['a.py', 'b.txt', mlp('d/c.py')]) + + file_list.process_template_line('global-include *.py') + assert file_list.files == ['a.py', mlp('d/c.py')] + self.assertNoWarnings(caplog) + + file_list.process_template_line('global-include *.rb') + assert file_list.files == ['a.py', mlp('d/c.py')] + self.assertWarnings(caplog) + + # global-exclude + file_list = FileList() + file_list.files = ['a.py', 'b.txt', mlp('d/c.py')] + + file_list.process_template_line('global-exclude *.py') + assert file_list.files == ['b.txt'] + self.assertNoWarnings(caplog) + + file_list.process_template_line('global-exclude *.rb') + assert file_list.files == ['b.txt'] + self.assertWarnings(caplog) + + # recursive-include + file_list = FileList() + file_list.set_allfiles(['a.py', mlp('d/b.py'), mlp('d/c.txt'), mlp('d/d/e.py')]) + + file_list.process_template_line('recursive-include d *.py') + assert file_list.files == [mlp('d/b.py'), mlp('d/d/e.py')] + self.assertNoWarnings(caplog) + + file_list.process_template_line('recursive-include e *.py') + assert file_list.files == [mlp('d/b.py'), mlp('d/d/e.py')] + self.assertWarnings(caplog) + + # recursive-exclude + file_list = FileList() + file_list.files = ['a.py', mlp('d/b.py'), mlp('d/c.txt'), mlp('d/d/e.py')] + + file_list.process_template_line('recursive-exclude d *.py') + assert file_list.files == ['a.py', mlp('d/c.txt')] + self.assertNoWarnings(caplog) + + file_list.process_template_line('recursive-exclude e *.py') + assert file_list.files == ['a.py', mlp('d/c.txt')] + self.assertWarnings(caplog) + + # graft + file_list = FileList() + file_list.set_allfiles(['a.py', mlp('d/b.py'), mlp('d/d/e.py'), mlp('f/f.py')]) + + file_list.process_template_line('graft d') + assert file_list.files == [mlp('d/b.py'), mlp('d/d/e.py')] + self.assertNoWarnings(caplog) + + file_list.process_template_line('graft e') + assert file_list.files == [mlp('d/b.py'), mlp('d/d/e.py')] + self.assertWarnings(caplog) + + # prune + file_list = FileList() + file_list.files = ['a.py', mlp('d/b.py'), mlp('d/d/e.py'), mlp('f/f.py')] + + file_list.process_template_line('prune d') + assert file_list.files == ['a.py', mlp('f/f.py')] + self.assertNoWarnings(caplog) + + file_list.process_template_line('prune e') + assert file_list.files == ['a.py', mlp('f/f.py')] + self.assertWarnings(caplog) + + +class TestFindAll: + @os_helper.skip_unless_symlink + def test_missing_symlink(self, temp_cwd): + os.symlink('foo', 'bar') + assert filelist.findall() == [] + + def test_basic_discovery(self, temp_cwd): + """ + When findall is called with no parameters or with + '.' as the parameter, the dot should be omitted from + the results. + """ + jaraco.path.build({'foo': {'file1.txt': ''}, 'bar': {'file2.txt': ''}}) + file1 = os.path.join('foo', 'file1.txt') + file2 = os.path.join('bar', 'file2.txt') + expected = [file2, file1] + assert sorted(filelist.findall()) == expected + + def test_non_local_discovery(self, tmp_path): + """ + When findall is called with another path, the full + path name should be returned. + """ + jaraco.path.build({'file1.txt': ''}, tmp_path) + expected = [str(tmp_path / 'file1.txt')] + assert filelist.findall(tmp_path) == expected + + @os_helper.skip_unless_symlink + def test_symlink_loop(self, tmp_path): + jaraco.path.build( + { + 'link-to-parent': jaraco.path.Symlink('.'), + 'somefile': '', + }, + tmp_path, + ) + files = filelist.findall(tmp_path) + assert len(files) == 1 diff --git a/setuptools/_distutils/tests/test_install.py b/setuptools/_distutils/tests/test_install.py new file mode 100644 index 0000000000..b3ffb2e668 --- /dev/null +++ b/setuptools/_distutils/tests/test_install.py @@ -0,0 +1,245 @@ +"""Tests for distutils.command.install.""" + +import logging +import os +import pathlib +import site +import sys +from distutils import sysconfig +from distutils.command import install as install_module +from distutils.command.build_ext import build_ext +from distutils.command.install import INSTALL_SCHEMES, install +from distutils.core import Distribution +from distutils.errors import DistutilsOptionError +from distutils.extension import Extension +from distutils.tests import missing_compiler_executable, support +from distutils.util import is_mingw + +import pytest + + +def _make_ext_name(modname): + return modname + sysconfig.get_config_var('EXT_SUFFIX') + + +@support.combine_markers +@pytest.mark.usefixtures('save_env') +class TestInstall( + support.TempdirManager, +): + @pytest.mark.xfail( + 'platform.system() == "Windows" and sys.version_info > (3, 11)', + reason="pypa/distutils#148", + ) + def test_home_installation_scheme(self): + # This ensure two things: + # - that --home generates the desired set of directory names + # - test --home is supported on all platforms + builddir = self.mkdtemp() + destination = os.path.join(builddir, "installation") + + dist = Distribution({"name": "foopkg"}) + # script_name need not exist, it just need to be initialized + dist.script_name = os.path.join(builddir, "setup.py") + dist.command_obj["build"] = support.DummyCommand( + build_base=builddir, + build_lib=os.path.join(builddir, "lib"), + ) + + cmd = install(dist) + cmd.home = destination + cmd.ensure_finalized() + + assert cmd.install_base == destination + assert cmd.install_platbase == destination + + def check_path(got, expected): + got = os.path.normpath(got) + expected = os.path.normpath(expected) + assert got == expected + + impl_name = sys.implementation.name.replace("cpython", "python") + libdir = os.path.join(destination, "lib", impl_name) + check_path(cmd.install_lib, libdir) + _platlibdir = getattr(sys, "platlibdir", "lib") + platlibdir = os.path.join(destination, _platlibdir, impl_name) + check_path(cmd.install_platlib, platlibdir) + check_path(cmd.install_purelib, libdir) + check_path( + cmd.install_headers, + os.path.join(destination, "include", impl_name, "foopkg"), + ) + check_path(cmd.install_scripts, os.path.join(destination, "bin")) + check_path(cmd.install_data, destination) + + def test_user_site(self, monkeypatch): + # test install with --user + # preparing the environment for the test + self.tmpdir = self.mkdtemp() + orig_site = site.USER_SITE + orig_base = site.USER_BASE + monkeypatch.setattr(site, 'USER_BASE', os.path.join(self.tmpdir, 'B')) + monkeypatch.setattr(site, 'USER_SITE', os.path.join(self.tmpdir, 'S')) + monkeypatch.setattr(install_module, 'USER_BASE', site.USER_BASE) + monkeypatch.setattr(install_module, 'USER_SITE', site.USER_SITE) + + def _expanduser(path): + if path.startswith('~'): + return os.path.normpath(self.tmpdir + path[1:]) + return path + + monkeypatch.setattr(os.path, 'expanduser', _expanduser) + + for key in ('nt_user', 'posix_user'): + assert key in INSTALL_SCHEMES + + dist = Distribution({'name': 'xx'}) + cmd = install(dist) + + # making sure the user option is there + options = [name for name, short, label in cmd.user_options] + assert 'user' in options + + # setting a value + cmd.user = True + + # user base and site shouldn't be created yet + assert not os.path.exists(site.USER_BASE) + assert not os.path.exists(site.USER_SITE) + + # let's run finalize + cmd.ensure_finalized() + + # now they should + assert os.path.exists(site.USER_BASE) + assert os.path.exists(site.USER_SITE) + + assert 'userbase' in cmd.config_vars + assert 'usersite' in cmd.config_vars + + actual_headers = os.path.relpath(cmd.install_headers, site.USER_BASE) + if os.name == 'nt' and not is_mingw(): + site_path = os.path.relpath(os.path.dirname(orig_site), orig_base) + include = os.path.join(site_path, 'Include') + else: + include = sysconfig.get_python_inc(0, '') + expect_headers = os.path.join(include, 'xx') + + assert os.path.normcase(actual_headers) == os.path.normcase(expect_headers) + + def test_handle_extra_path(self): + dist = Distribution({'name': 'xx', 'extra_path': 'path,dirs'}) + cmd = install(dist) + + # two elements + cmd.handle_extra_path() + assert cmd.extra_path == ['path', 'dirs'] + assert cmd.extra_dirs == 'dirs' + assert cmd.path_file == 'path' + + # one element + cmd.extra_path = ['path'] + cmd.handle_extra_path() + assert cmd.extra_path == ['path'] + assert cmd.extra_dirs == 'path' + assert cmd.path_file == 'path' + + # none + dist.extra_path = cmd.extra_path = None + cmd.handle_extra_path() + assert cmd.extra_path is None + assert cmd.extra_dirs == '' + assert cmd.path_file is None + + # three elements (no way !) + cmd.extra_path = 'path,dirs,again' + with pytest.raises(DistutilsOptionError): + cmd.handle_extra_path() + + def test_finalize_options(self): + dist = Distribution({'name': 'xx'}) + cmd = install(dist) + + # must supply either prefix/exec-prefix/home or + # install-base/install-platbase -- not both + cmd.prefix = 'prefix' + cmd.install_base = 'base' + with pytest.raises(DistutilsOptionError): + cmd.finalize_options() + + # must supply either home or prefix/exec-prefix -- not both + cmd.install_base = None + cmd.home = 'home' + with pytest.raises(DistutilsOptionError): + cmd.finalize_options() + + # can't combine user with prefix/exec_prefix/home or + # install_(plat)base + cmd.prefix = None + cmd.user = 'user' + with pytest.raises(DistutilsOptionError): + cmd.finalize_options() + + def test_record(self): + install_dir = self.mkdtemp() + project_dir, dist = self.create_dist(py_modules=['hello'], scripts=['sayhi']) + os.chdir(project_dir) + self.write_file('hello.py', "def main(): print('o hai')") + self.write_file('sayhi', 'from hello import main; main()') + + cmd = install(dist) + dist.command_obj['install'] = cmd + cmd.root = install_dir + cmd.record = os.path.join(project_dir, 'filelist') + cmd.ensure_finalized() + cmd.run() + + content = pathlib.Path(cmd.record).read_text(encoding='utf-8') + + found = [pathlib.Path(line).name for line in content.splitlines()] + expected = [ + 'hello.py', + f'hello.{sys.implementation.cache_tag}.pyc', + 'sayhi', + 'UNKNOWN-0.0.0-py{}.{}.egg-info'.format(*sys.version_info[:2]), + ] + assert found == expected + + def test_record_extensions(self): + cmd = missing_compiler_executable() + if cmd is not None: + pytest.skip(f'The {cmd!r} command is not found') + install_dir = self.mkdtemp() + project_dir, dist = self.create_dist( + ext_modules=[Extension('xx', ['xxmodule.c'])] + ) + os.chdir(project_dir) + support.copy_xxmodule_c(project_dir) + + buildextcmd = build_ext(dist) + support.fixup_build_ext(buildextcmd) + buildextcmd.ensure_finalized() + + cmd = install(dist) + dist.command_obj['install'] = cmd + dist.command_obj['build_ext'] = buildextcmd + cmd.root = install_dir + cmd.record = os.path.join(project_dir, 'filelist') + cmd.ensure_finalized() + cmd.run() + + content = pathlib.Path(cmd.record).read_text(encoding='utf-8') + + found = [pathlib.Path(line).name for line in content.splitlines()] + expected = [ + _make_ext_name('xx'), + 'UNKNOWN-0.0.0-py{}.{}.egg-info'.format(*sys.version_info[:2]), + ] + assert found == expected + + def test_debug_mode(self, caplog, monkeypatch): + # this covers the code called when DEBUG is set + monkeypatch.setattr(install_module, 'DEBUG', True) + caplog.set_level(logging.DEBUG) + self.test_record() + assert any(rec for rec in caplog.records if rec.levelno == logging.DEBUG) diff --git a/setuptools/_distutils/tests/test_install_data.py b/setuptools/_distutils/tests/test_install_data.py new file mode 100644 index 0000000000..c800f86c64 --- /dev/null +++ b/setuptools/_distutils/tests/test_install_data.py @@ -0,0 +1,74 @@ +"""Tests for distutils.command.install_data.""" + +import os +import pathlib +from distutils.command.install_data import install_data +from distutils.tests import support + +import pytest + + +@pytest.mark.usefixtures('save_env') +class TestInstallData( + support.TempdirManager, +): + def test_simple_run(self): + pkg_dir, dist = self.create_dist() + cmd = install_data(dist) + cmd.install_dir = inst = os.path.join(pkg_dir, 'inst') + + # data_files can contain + # - simple files + # - a Path object + # - a tuple with a path, and a list of file + one = os.path.join(pkg_dir, 'one') + self.write_file(one, 'xxx') + inst2 = os.path.join(pkg_dir, 'inst2') + two = os.path.join(pkg_dir, 'two') + self.write_file(two, 'xxx') + three = pathlib.Path(pkg_dir) / 'three' + self.write_file(three, 'xxx') + + cmd.data_files = [one, (inst2, [two]), three] + assert cmd.get_inputs() == [one, (inst2, [two]), three] + + # let's run the command + cmd.ensure_finalized() + cmd.run() + + # let's check the result + assert len(cmd.get_outputs()) == 3 + rthree = os.path.split(one)[-1] + assert os.path.exists(os.path.join(inst, rthree)) + rtwo = os.path.split(two)[-1] + assert os.path.exists(os.path.join(inst2, rtwo)) + rone = os.path.split(one)[-1] + assert os.path.exists(os.path.join(inst, rone)) + cmd.outfiles = [] + + # let's try with warn_dir one + cmd.warn_dir = True + cmd.ensure_finalized() + cmd.run() + + # let's check the result + assert len(cmd.get_outputs()) == 3 + assert os.path.exists(os.path.join(inst, rthree)) + assert os.path.exists(os.path.join(inst2, rtwo)) + assert os.path.exists(os.path.join(inst, rone)) + cmd.outfiles = [] + + # now using root and empty dir + cmd.root = os.path.join(pkg_dir, 'root') + inst5 = os.path.join(pkg_dir, 'inst5') + four = os.path.join(cmd.install_dir, 'four') + self.write_file(four, 'xx') + cmd.data_files = [one, (inst2, [two]), three, ('inst5', [four]), (inst5, [])] + cmd.ensure_finalized() + cmd.run() + + # let's check the result + assert len(cmd.get_outputs()) == 5 + assert os.path.exists(os.path.join(inst, rthree)) + assert os.path.exists(os.path.join(inst2, rtwo)) + assert os.path.exists(os.path.join(inst, rone)) diff --git a/setuptools/_distutils/tests/test_install_headers.py b/setuptools/_distutils/tests/test_install_headers.py new file mode 100644 index 0000000000..2c74f06b97 --- /dev/null +++ b/setuptools/_distutils/tests/test_install_headers.py @@ -0,0 +1,33 @@ +"""Tests for distutils.command.install_headers.""" + +import os +from distutils.command.install_headers import install_headers +from distutils.tests import support + +import pytest + + +@pytest.mark.usefixtures('save_env') +class TestInstallHeaders( + support.TempdirManager, +): + def test_simple_run(self): + # we have two headers + header_list = self.mkdtemp() + header1 = os.path.join(header_list, 'header1') + header2 = os.path.join(header_list, 'header2') + self.write_file(header1) + self.write_file(header2) + headers = [header1, header2] + + pkg_dir, dist = self.create_dist(headers=headers) + cmd = install_headers(dist) + assert cmd.get_inputs() == headers + + # let's run the command + cmd.install_dir = os.path.join(pkg_dir, 'inst') + cmd.ensure_finalized() + cmd.run() + + # let's check the results + assert len(cmd.get_outputs()) == 2 diff --git a/setuptools/_distutils/tests/test_install_lib.py b/setuptools/_distutils/tests/test_install_lib.py new file mode 100644 index 0000000000..f685a57956 --- /dev/null +++ b/setuptools/_distutils/tests/test_install_lib.py @@ -0,0 +1,110 @@ +"""Tests for distutils.command.install_data.""" + +import importlib.util +import os +import sys +from distutils.command.install_lib import install_lib +from distutils.errors import DistutilsOptionError +from distutils.extension import Extension +from distutils.tests import support + +import pytest + + +@support.combine_markers +@pytest.mark.usefixtures('save_env') +class TestInstallLib( + support.TempdirManager, +): + def test_finalize_options(self): + dist = self.create_dist()[1] + cmd = install_lib(dist) + + cmd.finalize_options() + assert cmd.compile == 1 + assert cmd.optimize == 0 + + # optimize must be 0, 1, or 2 + cmd.optimize = 'foo' + with pytest.raises(DistutilsOptionError): + cmd.finalize_options() + cmd.optimize = '4' + with pytest.raises(DistutilsOptionError): + cmd.finalize_options() + + cmd.optimize = '2' + cmd.finalize_options() + assert cmd.optimize == 2 + + @pytest.mark.skipif('sys.dont_write_bytecode') + def test_byte_compile(self): + project_dir, dist = self.create_dist() + os.chdir(project_dir) + cmd = install_lib(dist) + cmd.compile = cmd.optimize = 1 + + f = os.path.join(project_dir, 'foo.py') + self.write_file(f, '# python file') + cmd.byte_compile([f]) + pyc_file = importlib.util.cache_from_source('foo.py', optimization='') + pyc_opt_file = importlib.util.cache_from_source( + 'foo.py', optimization=cmd.optimize + ) + assert os.path.exists(pyc_file) + assert os.path.exists(pyc_opt_file) + + def test_get_outputs(self): + project_dir, dist = self.create_dist() + os.chdir(project_dir) + os.mkdir('spam') + cmd = install_lib(dist) + + # setting up a dist environment + cmd.compile = cmd.optimize = 1 + cmd.install_dir = self.mkdtemp() + f = os.path.join(project_dir, 'spam', '__init__.py') + self.write_file(f, '# python package') + cmd.distribution.ext_modules = [Extension('foo', ['xxx'])] + cmd.distribution.packages = ['spam'] + cmd.distribution.script_name = 'setup.py' + + # get_outputs should return 4 elements: spam/__init__.py and .pyc, + # foo.import-tag-abiflags.so / foo.pyd + outputs = cmd.get_outputs() + assert len(outputs) == 4, outputs + + def test_get_inputs(self): + project_dir, dist = self.create_dist() + os.chdir(project_dir) + os.mkdir('spam') + cmd = install_lib(dist) + + # setting up a dist environment + cmd.compile = cmd.optimize = 1 + cmd.install_dir = self.mkdtemp() + f = os.path.join(project_dir, 'spam', '__init__.py') + self.write_file(f, '# python package') + cmd.distribution.ext_modules = [Extension('foo', ['xxx'])] + cmd.distribution.packages = ['spam'] + cmd.distribution.script_name = 'setup.py' + + # get_inputs should return 2 elements: spam/__init__.py and + # foo.import-tag-abiflags.so / foo.pyd + inputs = cmd.get_inputs() + assert len(inputs) == 2, inputs + + def test_dont_write_bytecode(self, caplog): + # makes sure byte_compile is not used + dist = self.create_dist()[1] + cmd = install_lib(dist) + cmd.compile = True + cmd.optimize = 1 + + old_dont_write_bytecode = sys.dont_write_bytecode + sys.dont_write_bytecode = True + try: + cmd.byte_compile([]) + finally: + sys.dont_write_bytecode = old_dont_write_bytecode + + assert 'byte-compiling is disabled' in caplog.messages[0] diff --git a/setuptools/_distutils/tests/test_install_scripts.py b/setuptools/_distutils/tests/test_install_scripts.py new file mode 100644 index 0000000000..868b1c2252 --- /dev/null +++ b/setuptools/_distutils/tests/test_install_scripts.py @@ -0,0 +1,52 @@ +"""Tests for distutils.command.install_scripts.""" + +import os +from distutils.command.install_scripts import install_scripts +from distutils.core import Distribution +from distutils.tests import support + +from . import test_build_scripts + + +class TestInstallScripts(support.TempdirManager): + def test_default_settings(self): + dist = Distribution() + dist.command_obj["build"] = support.DummyCommand(build_scripts="/foo/bar") + dist.command_obj["install"] = support.DummyCommand( + install_scripts="/splat/funk", + force=True, + skip_build=True, + ) + cmd = install_scripts(dist) + assert not cmd.force + assert not cmd.skip_build + assert cmd.build_dir is None + assert cmd.install_dir is None + + cmd.finalize_options() + + assert cmd.force + assert cmd.skip_build + assert cmd.build_dir == "/foo/bar" + assert cmd.install_dir == "/splat/funk" + + def test_installation(self): + source = self.mkdtemp() + + expected = test_build_scripts.TestBuildScripts.write_sample_scripts(source) + + target = self.mkdtemp() + dist = Distribution() + dist.command_obj["build"] = support.DummyCommand(build_scripts=source) + dist.command_obj["install"] = support.DummyCommand( + install_scripts=target, + force=True, + skip_build=True, + ) + cmd = install_scripts(dist) + cmd.finalize_options() + cmd.run() + + installed = os.listdir(target) + for name in expected: + assert name in installed diff --git a/setuptools/_distutils/tests/test_log.py b/setuptools/_distutils/tests/test_log.py new file mode 100644 index 0000000000..d67779fc9f --- /dev/null +++ b/setuptools/_distutils/tests/test_log.py @@ -0,0 +1,12 @@ +"""Tests for distutils.log""" + +import logging +from distutils._log import log + + +class TestLog: + def test_non_ascii(self, caplog): + caplog.set_level(logging.DEBUG) + log.debug('Dεbug\tMėssãge') + log.fatal('Fαtal\tÈrrōr') + assert caplog.messages == ['Dεbug\tMėssãge', 'Fαtal\tÈrrōr'] diff --git a/setuptools/_distutils/tests/test_modified.py b/setuptools/_distutils/tests/test_modified.py new file mode 100644 index 0000000000..e35cec2d6f --- /dev/null +++ b/setuptools/_distutils/tests/test_modified.py @@ -0,0 +1,126 @@ +"""Tests for distutils._modified.""" + +import os +import types +from distutils._modified import newer, newer_group, newer_pairwise, newer_pairwise_group +from distutils.errors import DistutilsFileError +from distutils.tests import support + +import pytest + + +class TestDepUtil(support.TempdirManager): + def test_newer(self): + tmpdir = self.mkdtemp() + new_file = os.path.join(tmpdir, 'new') + old_file = os.path.abspath(__file__) + + # Raise DistutilsFileError if 'new_file' does not exist. + with pytest.raises(DistutilsFileError): + newer(new_file, old_file) + + # Return true if 'new_file' exists and is more recently modified than + # 'old_file', or if 'new_file' exists and 'old_file' doesn't. + self.write_file(new_file) + assert newer(new_file, 'I_dont_exist') + assert newer(new_file, old_file) + + # Return false if both exist and 'old_file' is the same age or younger + # than 'new_file'. + assert not newer(old_file, new_file) + + def _setup_1234(self): + tmpdir = self.mkdtemp() + sources = os.path.join(tmpdir, 'sources') + targets = os.path.join(tmpdir, 'targets') + os.mkdir(sources) + os.mkdir(targets) + one = os.path.join(sources, 'one') + two = os.path.join(sources, 'two') + three = os.path.abspath(__file__) # I am the old file + four = os.path.join(targets, 'four') + self.write_file(one) + self.write_file(two) + self.write_file(four) + return one, two, three, four + + def test_newer_pairwise(self): + one, two, three, four = self._setup_1234() + + assert newer_pairwise([one, two], [three, four]) == ([one], [three]) + + def test_newer_pairwise_mismatch(self): + one, two, three, four = self._setup_1234() + + with pytest.raises(ValueError): + newer_pairwise([one], [three, four]) + + with pytest.raises(ValueError): + newer_pairwise([one, two], [three]) + + def test_newer_pairwise_empty(self): + assert newer_pairwise([], []) == ([], []) + + def test_newer_pairwise_fresh(self): + one, two, three, four = self._setup_1234() + + assert newer_pairwise([one, three], [two, four]) == ([], []) + + def test_newer_group(self): + tmpdir = self.mkdtemp() + sources = os.path.join(tmpdir, 'sources') + os.mkdir(sources) + one = os.path.join(sources, 'one') + two = os.path.join(sources, 'two') + three = os.path.join(sources, 'three') + old_file = os.path.abspath(__file__) + + # return true if 'old_file' is out-of-date with respect to any file + # listed in 'sources'. + self.write_file(one) + self.write_file(two) + self.write_file(three) + assert newer_group([one, two, three], old_file) + assert not newer_group([one, two, old_file], three) + + # missing handling + os.remove(one) + with pytest.raises(OSError): + newer_group([one, two, old_file], three) + + assert not newer_group([one, two, old_file], three, missing='ignore') + + assert newer_group([one, two, old_file], three, missing='newer') + + +@pytest.fixture +def groups_target(tmp_path): + """ + Set up some older sources, a target, and newer sources. + + Returns a simple namespace with these values. + """ + filenames = ['older.c', 'older.h', 'target.o', 'newer.c', 'newer.h'] + paths = [tmp_path / name for name in filenames] + + for mtime, path in enumerate(paths): + path.write_text('', encoding='utf-8') + + # make sure modification times are sequential + os.utime(path, (mtime, mtime)) + + return types.SimpleNamespace(older=paths[:2], target=paths[2], newer=paths[3:]) + + +def test_newer_pairwise_group(groups_target): + older = newer_pairwise_group([groups_target.older], [groups_target.target]) + newer = newer_pairwise_group([groups_target.newer], [groups_target.target]) + assert older == ([], []) + assert newer == ([groups_target.newer], [groups_target.target]) + + +def test_newer_group_no_sources_no_target(tmp_path): + """ + Consider no sources and no target "newer". + """ + assert newer_group([], str(tmp_path / 'does-not-exist')) diff --git a/setuptools/_distutils/tests/test_sdist.py b/setuptools/_distutils/tests/test_sdist.py new file mode 100644 index 0000000000..6b1a376b26 --- /dev/null +++ b/setuptools/_distutils/tests/test_sdist.py @@ -0,0 +1,470 @@ +"""Tests for distutils.command.sdist.""" + +import os +import pathlib +import shutil # noqa: F401 +import tarfile +import zipfile +from distutils.archive_util import ARCHIVE_FORMATS +from distutils.command.sdist import sdist, show_formats +from distutils.core import Distribution +from distutils.errors import DistutilsOptionError +from distutils.filelist import FileList +from os.path import join +from textwrap import dedent + +import jaraco.path +import path +import pytest +from more_itertools import ilen + +from . import support +from .unix_compat import grp, pwd, require_uid_0, require_unix_id + +SETUP_PY = """ +from distutils.core import setup +import somecode + +setup(name='fake') +""" + +MANIFEST = """\ +# file GENERATED by distutils, do NOT edit +README +buildout.cfg +inroot.txt +setup.py +data%(sep)sdata.dt +scripts%(sep)sscript.py +some%(sep)sfile.txt +some%(sep)sother_file.txt +somecode%(sep)s__init__.py +somecode%(sep)sdoc.dat +somecode%(sep)sdoc.txt +""" + + +@pytest.fixture(autouse=True) +def project_dir(request, distutils_managed_tempdir): + self = request.instance + self.tmp_dir = self.mkdtemp() + jaraco.path.build( + { + 'somecode': { + '__init__.py': '#', + }, + 'README': 'xxx', + 'setup.py': SETUP_PY, + }, + self.tmp_dir, + ) + with path.Path(self.tmp_dir): + yield + + +def clean_lines(filepath): + with pathlib.Path(filepath).open(encoding='utf-8') as f: + yield from filter(None, map(str.strip, f)) + + +class TestSDist(support.TempdirManager): + def get_cmd(self, metadata=None): + """Returns a cmd""" + if metadata is None: + metadata = { + 'name': 'ns.fake--pkg', + 'version': '1.0', + 'url': 'xxx', + 'author': 'xxx', + 'author_email': 'xxx', + } + dist = Distribution(metadata) + dist.script_name = 'setup.py' + dist.packages = ['somecode'] + dist.include_package_data = True + cmd = sdist(dist) + cmd.dist_dir = 'dist' + return dist, cmd + + @pytest.mark.usefixtures('needs_zlib') + def test_prune_file_list(self): + # this test creates a project with some VCS dirs and an NFS rename + # file, then launches sdist to check they get pruned on all systems + + # creating VCS directories with some files in them + os.mkdir(join(self.tmp_dir, 'somecode', '.svn')) + self.write_file((self.tmp_dir, 'somecode', '.svn', 'ok.py'), 'xxx') + + os.mkdir(join(self.tmp_dir, 'somecode', '.hg')) + self.write_file((self.tmp_dir, 'somecode', '.hg', 'ok'), 'xxx') + + os.mkdir(join(self.tmp_dir, 'somecode', '.git')) + self.write_file((self.tmp_dir, 'somecode', '.git', 'ok'), 'xxx') + + self.write_file((self.tmp_dir, 'somecode', '.nfs0001'), 'xxx') + + # now building a sdist + dist, cmd = self.get_cmd() + + # zip is available universally + # (tar might not be installed under win32) + cmd.formats = ['zip'] + + cmd.ensure_finalized() + cmd.run() + + # now let's check what we have + dist_folder = join(self.tmp_dir, 'dist') + files = os.listdir(dist_folder) + assert files == ['ns_fake_pkg-1.0.zip'] + + zip_file = zipfile.ZipFile(join(dist_folder, 'ns_fake_pkg-1.0.zip')) + try: + content = zip_file.namelist() + finally: + zip_file.close() + + # making sure everything has been pruned correctly + expected = [ + '', + 'PKG-INFO', + 'README', + 'setup.py', + 'somecode/', + 'somecode/__init__.py', + ] + assert sorted(content) == ['ns_fake_pkg-1.0/' + x for x in expected] + + @pytest.mark.usefixtures('needs_zlib') + @pytest.mark.skipif("not shutil.which('tar')") + @pytest.mark.skipif("not shutil.which('gzip')") + def test_make_distribution(self): + # now building a sdist + dist, cmd = self.get_cmd() + + # creating a gztar then a tar + cmd.formats = ['gztar', 'tar'] + cmd.ensure_finalized() + cmd.run() + + # making sure we have two files + dist_folder = join(self.tmp_dir, 'dist') + result = os.listdir(dist_folder) + result.sort() + assert result == ['ns_fake_pkg-1.0.tar', 'ns_fake_pkg-1.0.tar.gz'] + + os.remove(join(dist_folder, 'ns_fake_pkg-1.0.tar')) + os.remove(join(dist_folder, 'ns_fake_pkg-1.0.tar.gz')) + + # now trying a tar then a gztar + cmd.formats = ['tar', 'gztar'] + + cmd.ensure_finalized() + cmd.run() + + result = os.listdir(dist_folder) + result.sort() + assert result == ['ns_fake_pkg-1.0.tar', 'ns_fake_pkg-1.0.tar.gz'] + + @pytest.mark.usefixtures('needs_zlib') + def test_add_defaults(self): + # https://bugs.python.org/issue2279 + + # add_default should also include + # data_files and package_data + dist, cmd = self.get_cmd() + + # filling data_files by pointing files + # in package_data + dist.package_data = {'': ['*.cfg', '*.dat'], 'somecode': ['*.txt']} + self.write_file((self.tmp_dir, 'somecode', 'doc.txt'), '#') + self.write_file((self.tmp_dir, 'somecode', 'doc.dat'), '#') + + # adding some data in data_files + data_dir = join(self.tmp_dir, 'data') + os.mkdir(data_dir) + self.write_file((data_dir, 'data.dt'), '#') + some_dir = join(self.tmp_dir, 'some') + os.mkdir(some_dir) + # make sure VCS directories are pruned (#14004) + hg_dir = join(self.tmp_dir, '.hg') + os.mkdir(hg_dir) + self.write_file((hg_dir, 'last-message.txt'), '#') + # a buggy regex used to prevent this from working on windows (#6884) + self.write_file((self.tmp_dir, 'buildout.cfg'), '#') + self.write_file((self.tmp_dir, 'inroot.txt'), '#') + self.write_file((some_dir, 'file.txt'), '#') + self.write_file((some_dir, 'other_file.txt'), '#') + + dist.data_files = [ + ('data', ['data/data.dt', 'buildout.cfg', 'inroot.txt', 'notexisting']), + 'some/file.txt', + 'some/other_file.txt', + ] + + # adding a script + script_dir = join(self.tmp_dir, 'scripts') + os.mkdir(script_dir) + self.write_file((script_dir, 'script.py'), '#') + dist.scripts = [join('scripts', 'script.py')] + + cmd.formats = ['zip'] + cmd.use_defaults = True + + cmd.ensure_finalized() + cmd.run() + + # now let's check what we have + dist_folder = join(self.tmp_dir, 'dist') + files = os.listdir(dist_folder) + assert files == ['ns_fake_pkg-1.0.zip'] + + zip_file = zipfile.ZipFile(join(dist_folder, 'ns_fake_pkg-1.0.zip')) + try: + content = zip_file.namelist() + finally: + zip_file.close() + + # making sure everything was added + expected = [ + '', + 'PKG-INFO', + 'README', + 'buildout.cfg', + 'data/', + 'data/data.dt', + 'inroot.txt', + 'scripts/', + 'scripts/script.py', + 'setup.py', + 'some/', + 'some/file.txt', + 'some/other_file.txt', + 'somecode/', + 'somecode/__init__.py', + 'somecode/doc.dat', + 'somecode/doc.txt', + ] + assert sorted(content) == ['ns_fake_pkg-1.0/' + x for x in expected] + + # checking the MANIFEST + manifest = pathlib.Path(self.tmp_dir, 'MANIFEST').read_text(encoding='utf-8') + assert manifest == MANIFEST % {'sep': os.sep} + + @staticmethod + def warnings(messages, prefix='warning: '): + return [msg for msg in messages if msg.startswith(prefix)] + + @pytest.mark.usefixtures('needs_zlib') + def test_metadata_check_option(self, caplog): + # testing the `medata-check` option + dist, cmd = self.get_cmd(metadata={}) + + # this should raise some warnings ! + # with the `check` subcommand + cmd.ensure_finalized() + cmd.run() + assert len(self.warnings(caplog.messages, 'warning: check: ')) == 1 + + # trying with a complete set of metadata + caplog.clear() + dist, cmd = self.get_cmd() + cmd.ensure_finalized() + cmd.metadata_check = False + cmd.run() + assert len(self.warnings(caplog.messages, 'warning: check: ')) == 0 + + def test_show_formats(self, capsys): + show_formats() + + # the output should be a header line + one line per format + num_formats = len(ARCHIVE_FORMATS.keys()) + output = [ + line + for line in capsys.readouterr().out.split('\n') + if line.strip().startswith('--formats=') + ] + assert len(output) == num_formats + + def test_finalize_options(self): + dist, cmd = self.get_cmd() + cmd.finalize_options() + + # default options set by finalize + assert cmd.manifest == 'MANIFEST' + assert cmd.template == 'MANIFEST.in' + assert cmd.dist_dir == 'dist' + + # formats has to be a string splitable on (' ', ',') or + # a stringlist + cmd.formats = 1 + with pytest.raises(DistutilsOptionError): + cmd.finalize_options() + cmd.formats = ['zip'] + cmd.finalize_options() + + # formats has to be known + cmd.formats = 'supazipa' + with pytest.raises(DistutilsOptionError): + cmd.finalize_options() + + # the following tests make sure there is a nice error message instead + # of a traceback when parsing an invalid manifest template + + def _check_template(self, content, caplog): + dist, cmd = self.get_cmd() + os.chdir(self.tmp_dir) + self.write_file('MANIFEST.in', content) + cmd.ensure_finalized() + cmd.filelist = FileList() + cmd.read_template() + assert len(self.warnings(caplog.messages)) == 1 + + def test_invalid_template_unknown_command(self, caplog): + self._check_template('taunt knights *', caplog) + + def test_invalid_template_wrong_arguments(self, caplog): + # this manifest command takes one argument + self._check_template('prune', caplog) + + @pytest.mark.skipif("platform.system() != 'Windows'") + def test_invalid_template_wrong_path(self, caplog): + # on Windows, trailing slashes are not allowed + # this used to crash instead of raising a warning: #8286 + self._check_template('include examples/', caplog) + + @pytest.mark.usefixtures('needs_zlib') + def test_get_file_list(self): + # make sure MANIFEST is recalculated + dist, cmd = self.get_cmd() + + # filling data_files by pointing files in package_data + dist.package_data = {'somecode': ['*.txt']} + self.write_file((self.tmp_dir, 'somecode', 'doc.txt'), '#') + cmd.formats = ['gztar'] + cmd.ensure_finalized() + cmd.run() + + assert ilen(clean_lines(cmd.manifest)) == 5 + + # adding a file + self.write_file((self.tmp_dir, 'somecode', 'doc2.txt'), '#') + + # make sure build_py is reinitialized, like a fresh run + build_py = dist.get_command_obj('build_py') + build_py.finalized = False + build_py.ensure_finalized() + + cmd.run() + + manifest2 = list(clean_lines(cmd.manifest)) + + # do we have the new file in MANIFEST ? + assert len(manifest2) == 6 + assert 'doc2.txt' in manifest2[-1] + + @pytest.mark.usefixtures('needs_zlib') + def test_manifest_marker(self): + # check that autogenerated MANIFESTs have a marker + dist, cmd = self.get_cmd() + cmd.ensure_finalized() + cmd.run() + + assert ( + next(clean_lines(cmd.manifest)) + == '# file GENERATED by distutils, do NOT edit' + ) + + @pytest.mark.usefixtures('needs_zlib') + def test_manifest_comments(self): + # make sure comments don't cause exceptions or wrong includes + contents = dedent( + """\ + # bad.py + #bad.py + good.py + """ + ) + dist, cmd = self.get_cmd() + cmd.ensure_finalized() + self.write_file((self.tmp_dir, cmd.manifest), contents) + self.write_file((self.tmp_dir, 'good.py'), '# pick me!') + self.write_file((self.tmp_dir, 'bad.py'), "# don't pick me!") + self.write_file((self.tmp_dir, '#bad.py'), "# don't pick me!") + cmd.run() + assert cmd.filelist.files == ['good.py'] + + @pytest.mark.usefixtures('needs_zlib') + def test_manual_manifest(self): + # check that a MANIFEST without a marker is left alone + dist, cmd = self.get_cmd() + cmd.formats = ['gztar'] + cmd.ensure_finalized() + self.write_file((self.tmp_dir, cmd.manifest), 'README.manual') + self.write_file( + (self.tmp_dir, 'README.manual'), + 'This project maintains its MANIFEST file itself.', + ) + cmd.run() + assert cmd.filelist.files == ['README.manual'] + + assert list(clean_lines(cmd.manifest)) == ['README.manual'] + + archive_name = join(self.tmp_dir, 'dist', 'ns_fake_pkg-1.0.tar.gz') + archive = tarfile.open(archive_name) + try: + filenames = [tarinfo.name for tarinfo in archive] + finally: + archive.close() + assert sorted(filenames) == [ + 'ns_fake_pkg-1.0', + 'ns_fake_pkg-1.0/PKG-INFO', + 'ns_fake_pkg-1.0/README.manual', + ] + + @pytest.mark.usefixtures('needs_zlib') + @require_unix_id + @require_uid_0 + @pytest.mark.skipif("not shutil.which('tar')") + @pytest.mark.skipif("not shutil.which('gzip')") + def test_make_distribution_owner_group(self): + # now building a sdist + dist, cmd = self.get_cmd() + + # creating a gztar and specifying the owner+group + cmd.formats = ['gztar'] + cmd.owner = pwd.getpwuid(0)[0] + cmd.group = grp.getgrgid(0)[0] + cmd.ensure_finalized() + cmd.run() + + # making sure we have the good rights + archive_name = join(self.tmp_dir, 'dist', 'ns_fake_pkg-1.0.tar.gz') + archive = tarfile.open(archive_name) + try: + for member in archive.getmembers(): + assert member.uid == 0 + assert member.gid == 0 + finally: + archive.close() + + # building a sdist again + dist, cmd = self.get_cmd() + + # creating a gztar + cmd.formats = ['gztar'] + cmd.ensure_finalized() + cmd.run() + + # making sure we have the good rights + archive_name = join(self.tmp_dir, 'dist', 'ns_fake_pkg-1.0.tar.gz') + archive = tarfile.open(archive_name) + + # note that we are not testing the group ownership here + # because, depending on the platforms and the container + # rights (see #7408) + try: + for member in archive.getmembers(): + assert member.uid == os.getuid() + finally: + archive.close() diff --git a/setuptools/_distutils/tests/test_spawn.py b/setuptools/_distutils/tests/test_spawn.py new file mode 100644 index 0000000000..3b9fc926f6 --- /dev/null +++ b/setuptools/_distutils/tests/test_spawn.py @@ -0,0 +1,141 @@ +"""Tests for distutils.spawn.""" + +import os +import stat +import sys +import unittest.mock as mock +from distutils.errors import DistutilsExecError +from distutils.spawn import find_executable, spawn +from distutils.tests import support + +import path +import pytest +from test.support import unix_shell + +from .compat import py39 as os_helper + + +class TestSpawn(support.TempdirManager): + @pytest.mark.skipif("os.name not in ('nt', 'posix')") + def test_spawn(self): + tmpdir = self.mkdtemp() + + # creating something executable + # through the shell that returns 1 + if sys.platform != 'win32': + exe = os.path.join(tmpdir, 'foo.sh') + self.write_file(exe, f'#!{unix_shell}\nexit 1') + else: + exe = os.path.join(tmpdir, 'foo.bat') + self.write_file(exe, 'exit 1') + + os.chmod(exe, 0o777) + with pytest.raises(DistutilsExecError): + spawn([exe]) + + # now something that works + if sys.platform != 'win32': + exe = os.path.join(tmpdir, 'foo.sh') + self.write_file(exe, f'#!{unix_shell}\nexit 0') + else: + exe = os.path.join(tmpdir, 'foo.bat') + self.write_file(exe, 'exit 0') + + os.chmod(exe, 0o777) + spawn([exe]) # should work without any error + + def test_find_executable(self, tmp_path): + program_path = self._make_executable(tmp_path, '.exe') + program = program_path.name + program_noeext = program_path.with_suffix('').name + filename = str(program_path) + tmp_dir = path.Path(tmp_path) + + # test path parameter + rv = find_executable(program, path=tmp_dir) + assert rv == filename + + if sys.platform == 'win32': + # test without ".exe" extension + rv = find_executable(program_noeext, path=tmp_dir) + assert rv == filename + + # test find in the current directory + with tmp_dir: + rv = find_executable(program) + assert rv == program + + # test non-existent program + dont_exist_program = "dontexist_" + program + rv = find_executable(dont_exist_program, path=tmp_dir) + assert rv is None + + # PATH='': no match, except in the current directory + with os_helper.EnvironmentVarGuard() as env: + env['PATH'] = '' + with ( + mock.patch( + 'distutils.spawn.os.confstr', return_value=tmp_dir, create=True + ), + mock.patch('distutils.spawn.os.defpath', tmp_dir), + ): + rv = find_executable(program) + assert rv is None + + # look in current directory + with tmp_dir: + rv = find_executable(program) + assert rv == program + + # PATH=':': explicitly looks in the current directory + with os_helper.EnvironmentVarGuard() as env: + env['PATH'] = os.pathsep + with ( + mock.patch('distutils.spawn.os.confstr', return_value='', create=True), + mock.patch('distutils.spawn.os.defpath', ''), + ): + rv = find_executable(program) + assert rv is None + + # look in current directory + with tmp_dir: + rv = find_executable(program) + assert rv == program + + # missing PATH: test os.confstr("CS_PATH") and os.defpath + with os_helper.EnvironmentVarGuard() as env: + env.pop('PATH', None) + + # without confstr + with ( + mock.patch( + 'distutils.spawn.os.confstr', side_effect=ValueError, create=True + ), + mock.patch('distutils.spawn.os.defpath', tmp_dir), + ): + rv = find_executable(program) + assert rv == filename + + # with confstr + with ( + mock.patch( + 'distutils.spawn.os.confstr', return_value=tmp_dir, create=True + ), + mock.patch('distutils.spawn.os.defpath', ''), + ): + rv = find_executable(program) + assert rv == filename + + @staticmethod + def _make_executable(tmp_path, ext): + # Give the temporary program a suffix regardless of platform. + # It's needed on Windows and not harmful on others. + program = tmp_path.joinpath('program').with_suffix(ext) + program.write_text("", encoding='utf-8') + program.chmod(stat.S_IXUSR) + return program + + def test_spawn_missing_exe(self): + with pytest.raises(DistutilsExecError) as ctx: + spawn(['does-not-exist']) + assert "command 'does-not-exist' failed" in str(ctx.value) diff --git a/setuptools/_distutils/tests/test_sysconfig.py b/setuptools/_distutils/tests/test_sysconfig.py new file mode 100644 index 0000000000..43d77c23fa --- /dev/null +++ b/setuptools/_distutils/tests/test_sysconfig.py @@ -0,0 +1,319 @@ +"""Tests for distutils.sysconfig.""" + +import contextlib +import distutils +import os +import pathlib +import subprocess +import sys +from distutils import sysconfig +from distutils.ccompiler import new_compiler # noqa: F401 +from distutils.unixccompiler import UnixCCompiler + +import jaraco.envs +import path +import pytest +from jaraco.text import trim +from test.support import swap_item + + +def _gen_makefile(root, contents): + jaraco.path.build({'Makefile': trim(contents)}, root) + return root / 'Makefile' + + +@pytest.mark.usefixtures('save_env') +class TestSysconfig: + def test_get_config_h_filename(self): + config_h = sysconfig.get_config_h_filename() + assert os.path.isfile(config_h) + + @pytest.mark.skipif("platform.system() == 'Windows'") + @pytest.mark.skipif("sys.implementation.name != 'cpython'") + def test_get_makefile_filename(self): + makefile = sysconfig.get_makefile_filename() + assert os.path.isfile(makefile) + + def test_get_python_lib(self, tmp_path): + assert sysconfig.get_python_lib() != sysconfig.get_python_lib(prefix=tmp_path) + + def test_get_config_vars(self): + cvars = sysconfig.get_config_vars() + assert isinstance(cvars, dict) + assert cvars + + @pytest.mark.skipif('sysconfig.IS_PYPY') + @pytest.mark.skipif('sysconfig.python_build') + @pytest.mark.xfail('platform.system() == "Windows"') + def test_srcdir_simple(self): + # See #15364. + srcdir = pathlib.Path(sysconfig.get_config_var('srcdir')) + + assert srcdir.absolute() + assert srcdir.is_dir() + + makefile = pathlib.Path(sysconfig.get_makefile_filename()) + assert makefile.parent.samefile(srcdir) + + @pytest.mark.skipif('sysconfig.IS_PYPY') + @pytest.mark.skipif('not sysconfig.python_build') + def test_srcdir_python_build(self): + # See #15364. + srcdir = pathlib.Path(sysconfig.get_config_var('srcdir')) + + # The python executable has not been installed so srcdir + # should be a full source checkout. + Python_h = srcdir.joinpath('Include', 'Python.h') + assert Python_h.is_file() + assert sysconfig._is_python_source_dir(srcdir) + assert sysconfig._is_python_source_dir(str(srcdir)) + + def test_srcdir_independent_of_cwd(self): + """ + srcdir should be independent of the current working directory + """ + # See #15364. + srcdir = sysconfig.get_config_var('srcdir') + with path.Path('..'): + srcdir2 = sysconfig.get_config_var('srcdir') + assert srcdir == srcdir2 + + def customize_compiler(self): + # make sure AR gets caught + class compiler: + compiler_type = 'unix' + executables = UnixCCompiler.executables + + def __init__(self): + self.exes = {} + + def set_executables(self, **kw): + for k, v in kw.items(): + self.exes[k] = v + + sysconfig_vars = { + 'AR': 'sc_ar', + 'CC': 'sc_cc', + 'CXX': 'sc_cxx', + 'ARFLAGS': '--sc-arflags', + 'CFLAGS': '--sc-cflags', + 'CCSHARED': '--sc-ccshared', + 'LDSHARED': 'sc_ldshared', + 'SHLIB_SUFFIX': 'sc_shutil_suffix', + } + + comp = compiler() + with contextlib.ExitStack() as cm: + for key, value in sysconfig_vars.items(): + cm.enter_context(swap_item(sysconfig._config_vars, key, value)) + sysconfig.customize_compiler(comp) + + return comp + + @pytest.mark.skipif("not isinstance(new_compiler(), UnixCCompiler)") + @pytest.mark.usefixtures('disable_macos_customization') + def test_customize_compiler(self): + # Make sure that sysconfig._config_vars is initialized + sysconfig.get_config_vars() + + os.environ['AR'] = 'env_ar' + os.environ['CC'] = 'env_cc' + os.environ['CPP'] = 'env_cpp' + os.environ['CXX'] = 'env_cxx --env-cxx-flags' + os.environ['LDSHARED'] = 'env_ldshared' + os.environ['LDFLAGS'] = '--env-ldflags' + os.environ['ARFLAGS'] = '--env-arflags' + os.environ['CFLAGS'] = '--env-cflags' + os.environ['CPPFLAGS'] = '--env-cppflags' + os.environ['RANLIB'] = 'env_ranlib' + + comp = self.customize_compiler() + assert comp.exes['archiver'] == 'env_ar --env-arflags' + assert comp.exes['preprocessor'] == 'env_cpp --env-cppflags' + assert comp.exes['compiler'] == 'env_cc --env-cflags --env-cppflags' + assert comp.exes['compiler_so'] == ( + 'env_cc --env-cflags --env-cppflags --sc-ccshared' + ) + assert ( + comp.exes['compiler_cxx'] + == 'env_cxx --env-cxx-flags --sc-cflags --env-cppflags' + ) + assert comp.exes['linker_exe'] == 'env_cc' + assert comp.exes['linker_so'] == ( + 'env_ldshared --env-ldflags --env-cflags --env-cppflags' + ) + assert comp.shared_lib_extension == 'sc_shutil_suffix' + + if sys.platform == "darwin": + assert comp.exes['ranlib'] == 'env_ranlib' + else: + assert 'ranlib' not in comp.exes + + del os.environ['AR'] + del os.environ['CC'] + del os.environ['CPP'] + del os.environ['CXX'] + del os.environ['LDSHARED'] + del os.environ['LDFLAGS'] + del os.environ['ARFLAGS'] + del os.environ['CFLAGS'] + del os.environ['CPPFLAGS'] + del os.environ['RANLIB'] + + comp = self.customize_compiler() + assert comp.exes['archiver'] == 'sc_ar --sc-arflags' + assert comp.exes['preprocessor'] == 'sc_cc -E' + assert comp.exes['compiler'] == 'sc_cc --sc-cflags' + assert comp.exes['compiler_so'] == 'sc_cc --sc-cflags --sc-ccshared' + assert comp.exes['compiler_cxx'] == 'sc_cxx --sc-cflags' + assert comp.exes['linker_exe'] == 'sc_cc' + assert comp.exes['linker_so'] == 'sc_ldshared' + assert comp.shared_lib_extension == 'sc_shutil_suffix' + assert 'ranlib' not in comp.exes + + def test_parse_makefile_base(self, tmp_path): + makefile = _gen_makefile( + tmp_path, + """ + CONFIG_ARGS= '--arg1=optarg1' 'ENV=LIB' + VAR=$OTHER + OTHER=foo + """, + ) + d = sysconfig.parse_makefile(makefile) + assert d == {'CONFIG_ARGS': "'--arg1=optarg1' 'ENV=LIB'", 'OTHER': 'foo'} + + def test_parse_makefile_literal_dollar(self, tmp_path): + makefile = _gen_makefile( + tmp_path, + """ + CONFIG_ARGS= '--arg1=optarg1' 'ENV=\\$$LIB' + VAR=$OTHER + OTHER=foo + """, + ) + d = sysconfig.parse_makefile(makefile) + assert d == {'CONFIG_ARGS': r"'--arg1=optarg1' 'ENV=\$LIB'", 'OTHER': 'foo'} + + def test_sysconfig_module(self): + import sysconfig as global_sysconfig + + assert global_sysconfig.get_config_var('CFLAGS') == sysconfig.get_config_var( + 'CFLAGS' + ) + assert global_sysconfig.get_config_var('LDFLAGS') == sysconfig.get_config_var( + 'LDFLAGS' + ) + + # On macOS, binary installers support extension module building on + # various levels of the operating system with differing Xcode + # configurations, requiring customization of some of the + # compiler configuration directives to suit the environment on + # the installed machine. Some of these customizations may require + # running external programs and are thus deferred until needed by + # the first extension module build. Only + # the Distutils version of sysconfig is used for extension module + # builds, which happens earlier in the Distutils tests. This may + # cause the following tests to fail since no tests have caused + # the global version of sysconfig to call the customization yet. + # The solution for now is to simply skip this test in this case. + # The longer-term solution is to only have one version of sysconfig. + @pytest.mark.skipif("sysconfig.get_config_var('CUSTOMIZED_OSX_COMPILER')") + def test_sysconfig_compiler_vars(self): + import sysconfig as global_sysconfig + + if sysconfig.get_config_var('CUSTOMIZED_OSX_COMPILER'): + pytest.skip('compiler flags customized') + assert global_sysconfig.get_config_var('LDSHARED') == sysconfig.get_config_var( + 'LDSHARED' + ) + assert global_sysconfig.get_config_var('CC') == sysconfig.get_config_var('CC') + + @pytest.mark.skipif("not sysconfig.get_config_var('EXT_SUFFIX')") + def test_SO_deprecation(self): + with pytest.warns(DeprecationWarning): + sysconfig.get_config_var('SO') + + def test_customize_compiler_before_get_config_vars(self, tmp_path): + # Issue #21923: test that a Distribution compiler + # instance can be called without an explicit call to + # get_config_vars(). + jaraco.path.build( + { + 'file': trim(""" + from distutils.core import Distribution + config = Distribution().get_command_obj('config') + # try_compile may pass or it may fail if no compiler + # is found but it should not raise an exception. + rc = config.try_compile('int x;') + """) + }, + tmp_path, + ) + p = subprocess.Popen( + [sys.executable, tmp_path / 'file'], + stdout=subprocess.PIPE, + stderr=subprocess.STDOUT, + universal_newlines=True, + encoding='utf-8', + ) + outs, errs = p.communicate() + assert 0 == p.returncode, "Subprocess failed: " + outs + + def test_parse_config_h(self): + config_h = sysconfig.get_config_h_filename() + input = {} + with open(config_h, encoding="utf-8") as f: + result = sysconfig.parse_config_h(f, g=input) + assert input is result + with open(config_h, encoding="utf-8") as f: + result = sysconfig.parse_config_h(f) + assert isinstance(result, dict) + + @pytest.mark.skipif("platform.system() != 'Windows'") + @pytest.mark.skipif("sys.implementation.name != 'cpython'") + def test_win_ext_suffix(self): + assert sysconfig.get_config_var("EXT_SUFFIX").endswith(".pyd") + assert sysconfig.get_config_var("EXT_SUFFIX") != ".pyd" + + @pytest.mark.skipif("platform.system() != 'Windows'") + @pytest.mark.skipif("sys.implementation.name != 'cpython'") + @pytest.mark.skipif( + '\\PCbuild\\'.casefold() not in sys.executable.casefold(), + reason='Need sys.executable to be in a source tree', + ) + def test_win_build_venv_from_source_tree(self, tmp_path): + """Ensure distutils.sysconfig detects venvs from source tree builds.""" + env = jaraco.envs.VEnv() + env.create_opts = env.clean_opts + env.root = tmp_path + env.ensure_env() + cmd = [ + env.exe(), + "-c", + "import distutils.sysconfig; print(distutils.sysconfig.python_build)", + ] + distutils_path = os.path.dirname(os.path.dirname(distutils.__file__)) + out = subprocess.check_output( + cmd, env={**os.environ, "PYTHONPATH": distutils_path} + ) + assert out == "True" + + def test_get_python_inc_missing_config_dir(self, monkeypatch): + """ + In portable Python installations, the sysconfig will be broken, + pointing to the directories where the installation was built and + not where it currently is. In this case, ensure that the missing + directory isn't used for get_python_inc. + + See pypa/distutils#178. + """ + + def override(name): + if name == 'INCLUDEPY': + return '/does-not-exist' + return sysconfig.get_config_var(name) + + monkeypatch.setattr(sysconfig, 'get_config_var', override) + + assert os.path.exists(sysconfig.get_python_inc()) diff --git a/setuptools/_distutils/tests/test_text_file.py b/setuptools/_distutils/tests/test_text_file.py new file mode 100644 index 0000000000..f511156561 --- /dev/null +++ b/setuptools/_distutils/tests/test_text_file.py @@ -0,0 +1,127 @@ +"""Tests for distutils.text_file.""" + +from distutils.tests import support +from distutils.text_file import TextFile + +import jaraco.path +import path + +TEST_DATA = """# test file + +line 3 \\ +# intervening comment + continues on next line +""" + + +class TestTextFile(support.TempdirManager): + def test_class(self): + # old tests moved from text_file.__main__ + # so they are really called by the buildbots + + # result 1: no fancy options + result1 = [ + '# test file\n', + '\n', + 'line 3 \\\n', + '# intervening comment\n', + ' continues on next line\n', + ] + + # result 2: just strip comments + result2 = ["\n", "line 3 \\\n", " continues on next line\n"] + + # result 3: just strip blank lines + result3 = [ + "# test file\n", + "line 3 \\\n", + "# intervening comment\n", + " continues on next line\n", + ] + + # result 4: default, strip comments, blank lines, + # and trailing whitespace + result4 = ["line 3 \\", " continues on next line"] + + # result 5: strip comments and blanks, plus join lines (but don't + # "collapse" joined lines + result5 = ["line 3 continues on next line"] + + # result 6: strip comments and blanks, plus join lines (and + # "collapse" joined lines + result6 = ["line 3 continues on next line"] + + def test_input(count, description, file, expected_result): + result = file.readlines() + assert result == expected_result + + tmp_path = path.Path(self.mkdtemp()) + filename = tmp_path / 'test.txt' + jaraco.path.build({filename.name: TEST_DATA}, tmp_path) + + in_file = TextFile( + filename, + strip_comments=False, + skip_blanks=False, + lstrip_ws=False, + rstrip_ws=False, + ) + try: + test_input(1, "no processing", in_file, result1) + finally: + in_file.close() + + in_file = TextFile( + filename, + strip_comments=True, + skip_blanks=False, + lstrip_ws=False, + rstrip_ws=False, + ) + try: + test_input(2, "strip comments", in_file, result2) + finally: + in_file.close() + + in_file = TextFile( + filename, + strip_comments=False, + skip_blanks=True, + lstrip_ws=False, + rstrip_ws=False, + ) + try: + test_input(3, "strip blanks", in_file, result3) + finally: + in_file.close() + + in_file = TextFile(filename) + try: + test_input(4, "default processing", in_file, result4) + finally: + in_file.close() + + in_file = TextFile( + filename, + strip_comments=True, + skip_blanks=True, + join_lines=True, + rstrip_ws=True, + ) + try: + test_input(5, "join lines without collapsing", in_file, result5) + finally: + in_file.close() + + in_file = TextFile( + filename, + strip_comments=True, + skip_blanks=True, + join_lines=True, + rstrip_ws=True, + collapse_join=True, + ) + try: + test_input(6, "join lines with collapsing", in_file, result6) + finally: + in_file.close() diff --git a/setuptools/_distutils/tests/test_util.py b/setuptools/_distutils/tests/test_util.py new file mode 100644 index 0000000000..00c9743ed0 --- /dev/null +++ b/setuptools/_distutils/tests/test_util.py @@ -0,0 +1,243 @@ +"""Tests for distutils.util.""" + +import email +import email.generator +import email.policy +import io +import os +import pathlib +import sys +import sysconfig as stdlib_sysconfig +import unittest.mock as mock +from copy import copy +from distutils import sysconfig, util +from distutils.errors import DistutilsByteCompileError, DistutilsPlatformError +from distutils.util import ( + byte_compile, + change_root, + check_environ, + convert_path, + get_host_platform, + get_platform, + grok_environment_error, + rfc822_escape, + split_quoted, + strtobool, +) + +import pytest + + +@pytest.fixture(autouse=True) +def environment(monkeypatch): + monkeypatch.setattr(os, 'name', os.name) + monkeypatch.setattr(sys, 'platform', sys.platform) + monkeypatch.setattr(sys, 'version', sys.version) + monkeypatch.setattr(os, 'sep', os.sep) + monkeypatch.setattr(os.path, 'join', os.path.join) + monkeypatch.setattr(os.path, 'isabs', os.path.isabs) + monkeypatch.setattr(os.path, 'splitdrive', os.path.splitdrive) + monkeypatch.setattr(sysconfig, '_config_vars', copy(sysconfig._config_vars)) + + +@pytest.mark.usefixtures('save_env') +class TestUtil: + def test_get_host_platform(self): + with mock.patch('os.name', 'nt'): + with mock.patch('sys.version', '... [... (ARM64)]'): + assert get_host_platform() == 'win-arm64' + with mock.patch('sys.version', '... [... (ARM)]'): + assert get_host_platform() == 'win-arm32' + + with mock.patch('sys.version_info', (3, 9, 0, 'final', 0)): + assert get_host_platform() == stdlib_sysconfig.get_platform() + + def test_get_platform(self): + with mock.patch('os.name', 'nt'): + with mock.patch.dict('os.environ', {'VSCMD_ARG_TGT_ARCH': 'x86'}): + assert get_platform() == 'win32' + with mock.patch.dict('os.environ', {'VSCMD_ARG_TGT_ARCH': 'x64'}): + assert get_platform() == 'win-amd64' + with mock.patch.dict('os.environ', {'VSCMD_ARG_TGT_ARCH': 'arm'}): + assert get_platform() == 'win-arm32' + with mock.patch.dict('os.environ', {'VSCMD_ARG_TGT_ARCH': 'arm64'}): + assert get_platform() == 'win-arm64' + + def test_convert_path(self): + expected = os.sep.join(('', 'home', 'to', 'my', 'stuff')) + assert convert_path('/home/to/my/stuff') == expected + assert convert_path(pathlib.Path('/home/to/my/stuff')) == expected + assert convert_path('.') == os.curdir + + def test_change_root(self): + # linux/mac + os.name = 'posix' + + def _isabs(path): + return path[0] == '/' + + os.path.isabs = _isabs + + def _join(*path): + return '/'.join(path) + + os.path.join = _join + + assert change_root('/root', '/old/its/here') == '/root/old/its/here' + assert change_root('/root', 'its/here') == '/root/its/here' + + # windows + os.name = 'nt' + os.sep = '\\' + + def _isabs(path): + return path.startswith('c:\\') + + os.path.isabs = _isabs + + def _splitdrive(path): + if path.startswith('c:'): + return ('', path.replace('c:', '')) + return ('', path) + + os.path.splitdrive = _splitdrive + + def _join(*path): + return '\\'.join(path) + + os.path.join = _join + + assert ( + change_root('c:\\root', 'c:\\old\\its\\here') == 'c:\\root\\old\\its\\here' + ) + assert change_root('c:\\root', 'its\\here') == 'c:\\root\\its\\here' + + # BugsBunny os (it's a great os) + os.name = 'BugsBunny' + with pytest.raises(DistutilsPlatformError): + change_root('c:\\root', 'its\\here') + + # XXX platforms to be covered: mac + + def test_check_environ(self): + util.check_environ.cache_clear() + os.environ.pop('HOME', None) + + check_environ() + + assert os.environ['PLAT'] == get_platform() + + @pytest.mark.skipif("os.name != 'posix'") + def test_check_environ_getpwuid(self): + util.check_environ.cache_clear() + os.environ.pop('HOME', None) + + import pwd + + # only set pw_dir field, other fields are not used + result = pwd.struct_passwd(( + None, + None, + None, + None, + None, + '/home/distutils', + None, + )) + with mock.patch.object(pwd, 'getpwuid', return_value=result): + check_environ() + assert os.environ['HOME'] == '/home/distutils' + + util.check_environ.cache_clear() + os.environ.pop('HOME', None) + + # bpo-10496: Catch pwd.getpwuid() error + with mock.patch.object(pwd, 'getpwuid', side_effect=KeyError): + check_environ() + assert 'HOME' not in os.environ + + def test_split_quoted(self): + assert split_quoted('""one"" "two" \'three\' \\four') == [ + 'one', + 'two', + 'three', + 'four', + ] + + def test_strtobool(self): + yes = ('y', 'Y', 'yes', 'True', 't', 'true', 'True', 'On', 'on', '1') + no = ('n', 'no', 'f', 'false', 'off', '0', 'Off', 'No', 'N') + + for y in yes: + assert strtobool(y) + + for n in no: + assert not strtobool(n) + + indent = 8 * ' ' + + @pytest.mark.parametrize( + "given,wanted", + [ + # 0x0b, 0x0c, ..., etc are also considered a line break by Python + ("hello\x0b\nworld\n", f"hello\x0b{indent}\n{indent}world\n{indent}"), + ("hello\x1eworld", f"hello\x1e{indent}world"), + ("", ""), + ( + "I am a\npoor\nlonesome\nheader\n", + f"I am a\n{indent}poor\n{indent}lonesome\n{indent}header\n{indent}", + ), + ], + ) + def test_rfc822_escape(self, given, wanted): + """ + We want to ensure a multi-line header parses correctly. + + For interoperability, the escaped value should also "round-trip" over + `email.generator.Generator.flatten` and `email.message_from_*` + (see pypa/setuptools#4033). + + The main issue is that internally `email.policy.EmailPolicy` uses + `splitlines` which will split on some control chars. If all the new lines + are not prefixed with spaces, the parser will interrupt reading + the current header and produce an incomplete value, while + incorrectly interpreting the rest of the headers as part of the payload. + """ + res = rfc822_escape(given) + + policy = email.policy.EmailPolicy( + utf8=True, + mangle_from_=False, + max_line_length=0, + ) + with io.StringIO() as buffer: + raw = f"header: {res}\nother-header: 42\n\npayload\n" + orig = email.message_from_string(raw) + email.generator.Generator(buffer, policy=policy).flatten(orig) + buffer.seek(0) + regen = email.message_from_file(buffer) + + for msg in (orig, regen): + assert msg.get_payload() == "payload\n" + assert msg["other-header"] == "42" + # Generator may replace control chars with `\n` + assert set(msg["header"].splitlines()) == set(res.splitlines()) + + assert res == wanted + + def test_dont_write_bytecode(self): + # makes sure byte_compile raise a DistutilsError + # if sys.dont_write_bytecode is True + old_dont_write_bytecode = sys.dont_write_bytecode + sys.dont_write_bytecode = True + try: + with pytest.raises(DistutilsByteCompileError): + byte_compile([]) + finally: + sys.dont_write_bytecode = old_dont_write_bytecode + + def test_grok_environment_error(self): + # test obsolete function to ensure backward compat (#4931) + exc = OSError("Unable to find batch file") + msg = grok_environment_error(exc) + assert msg == "error: Unable to find batch file" diff --git a/setuptools/_distutils/tests/test_version.py b/setuptools/_distutils/tests/test_version.py new file mode 100644 index 0000000000..b68f097724 --- /dev/null +++ b/setuptools/_distutils/tests/test_version.py @@ -0,0 +1,80 @@ +"""Tests for distutils.version.""" + +import distutils +from distutils.version import LooseVersion, StrictVersion + +import pytest + + +@pytest.fixture(autouse=True) +def suppress_deprecation(): + with distutils.version.suppress_known_deprecation(): + yield + + +class TestVersion: + def test_prerelease(self): + version = StrictVersion('1.2.3a1') + assert version.version == (1, 2, 3) + assert version.prerelease == ('a', 1) + assert str(version) == '1.2.3a1' + + version = StrictVersion('1.2.0') + assert str(version) == '1.2' + + def test_cmp_strict(self): + versions = ( + ('1.5.1', '1.5.2b2', -1), + ('161', '3.10a', ValueError), + ('8.02', '8.02', 0), + ('3.4j', '1996.07.12', ValueError), + ('3.2.pl0', '3.1.1.6', ValueError), + ('2g6', '11g', ValueError), + ('0.9', '2.2', -1), + ('1.2.1', '1.2', 1), + ('1.1', '1.2.2', -1), + ('1.2', '1.1', 1), + ('1.2.1', '1.2.2', -1), + ('1.2.2', '1.2', 1), + ('1.2', '1.2.2', -1), + ('0.4.0', '0.4', 0), + ('1.13++', '5.5.kw', ValueError), + ) + + for v1, v2, wanted in versions: + try: + res = StrictVersion(v1)._cmp(StrictVersion(v2)) + except ValueError: + if wanted is ValueError: + continue + else: + raise AssertionError(f"cmp({v1}, {v2}) shouldn't raise ValueError") + assert res == wanted, f'cmp({v1}, {v2}) should be {wanted}, got {res}' + res = StrictVersion(v1)._cmp(v2) + assert res == wanted, f'cmp({v1}, {v2}) should be {wanted}, got {res}' + res = StrictVersion(v1)._cmp(object()) + assert res is NotImplemented, ( + f'cmp({v1}, {v2}) should be NotImplemented, got {res}' + ) + + def test_cmp(self): + versions = ( + ('1.5.1', '1.5.2b2', -1), + ('161', '3.10a', 1), + ('8.02', '8.02', 0), + ('3.4j', '1996.07.12', -1), + ('3.2.pl0', '3.1.1.6', 1), + ('2g6', '11g', -1), + ('0.960923', '2.2beta29', -1), + ('1.13++', '5.5.kw', -1), + ) + + for v1, v2, wanted in versions: + res = LooseVersion(v1)._cmp(LooseVersion(v2)) + assert res == wanted, f'cmp({v1}, {v2}) should be {wanted}, got {res}' + res = LooseVersion(v1)._cmp(v2) + assert res == wanted, f'cmp({v1}, {v2}) should be {wanted}, got {res}' + res = LooseVersion(v1)._cmp(object()) + assert res is NotImplemented, ( + f'cmp({v1}, {v2}) should be NotImplemented, got {res}' + ) diff --git a/setuptools/_distutils/tests/test_versionpredicate.py b/setuptools/_distutils/tests/test_versionpredicate.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/setuptools/_distutils/tests/unix_compat.py b/setuptools/_distutils/tests/unix_compat.py new file mode 100644 index 0000000000..a5d9ee45cc --- /dev/null +++ b/setuptools/_distutils/tests/unix_compat.py @@ -0,0 +1,17 @@ +import sys + +try: + import grp + import pwd +except ImportError: + grp = pwd = None + +import pytest + +UNIX_ID_SUPPORT = grp and pwd +UID_0_SUPPORT = UNIX_ID_SUPPORT and sys.platform != "cygwin" + +require_unix_id = pytest.mark.skipif( + not UNIX_ID_SUPPORT, reason="Requires grp and pwd support" +) +require_uid_0 = pytest.mark.skipif(not UID_0_SUPPORT, reason="Requires UID 0 support") diff --git a/setuptools/_distutils/tests/xxmodule-3.8.c b/setuptools/_distutils/tests/xxmodule-3.8.c new file mode 100644 index 0000000000..0250031d72 --- /dev/null +++ b/setuptools/_distutils/tests/xxmodule-3.8.c @@ -0,0 +1,411 @@ + +/* Use this file as a template to start implementing a module that + also declares object types. All occurrences of 'Xxo' should be changed + to something reasonable for your objects. After that, all other + occurrences of 'xx' should be changed to something reasonable for your + module. If your module is named foo your sourcefile should be named + foomodule.c. + + You will probably want to delete all references to 'x_attr' and add + your own types of attributes instead. Maybe you want to name your + local variables other than 'self'. If your object type is needed in + other files, you'll have to create a file "foobarobject.h"; see + floatobject.h for an example. */ + +/* Xxo objects */ + +#include "Python.h" + +static PyObject *ErrorObject; + +typedef struct { + PyObject_HEAD + PyObject *x_attr; /* Attributes dictionary */ +} XxoObject; + +static PyTypeObject Xxo_Type; + +#define XxoObject_Check(v) (Py_TYPE(v) == &Xxo_Type) + +static XxoObject * +newXxoObject(PyObject *arg) +{ + XxoObject *self; + self = PyObject_New(XxoObject, &Xxo_Type); + if (self == NULL) + return NULL; + self->x_attr = NULL; + return self; +} + +/* Xxo methods */ + +static void +Xxo_dealloc(XxoObject *self) +{ + Py_XDECREF(self->x_attr); + PyObject_Del(self); +} + +static PyObject * +Xxo_demo(XxoObject *self, PyObject *args) +{ + if (!PyArg_ParseTuple(args, ":demo")) + return NULL; + Py_INCREF(Py_None); + return Py_None; +} + +static PyMethodDef Xxo_methods[] = { + {"demo", (PyCFunction)Xxo_demo, METH_VARARGS, + PyDoc_STR("demo() -> None")}, + {NULL, NULL} /* sentinel */ +}; + +static PyObject * +Xxo_getattro(XxoObject *self, PyObject *name) +{ + if (self->x_attr != NULL) { + PyObject *v = PyDict_GetItemWithError(self->x_attr, name); + if (v != NULL) { + Py_INCREF(v); + return v; + } + else if (PyErr_Occurred()) { + return NULL; + } + } + return PyObject_GenericGetAttr((PyObject *)self, name); +} + +static int +Xxo_setattr(XxoObject *self, const char *name, PyObject *v) +{ + if (self->x_attr == NULL) { + self->x_attr = PyDict_New(); + if (self->x_attr == NULL) + return -1; + } + if (v == NULL) { + int rv = PyDict_DelItemString(self->x_attr, name); + if (rv < 0 && PyErr_ExceptionMatches(PyExc_KeyError)) + PyErr_SetString(PyExc_AttributeError, + "delete non-existing Xxo attribute"); + return rv; + } + else + return PyDict_SetItemString(self->x_attr, name, v); +} + +static PyTypeObject Xxo_Type = { + /* The ob_type field must be initialized in the module init function + * to be portable to Windows without using C++. */ + PyVarObject_HEAD_INIT(NULL, 0) + "xxmodule.Xxo", /*tp_name*/ + sizeof(XxoObject), /*tp_basicsize*/ + 0, /*tp_itemsize*/ + /* methods */ + (destructor)Xxo_dealloc, /*tp_dealloc*/ + 0, /*tp_vectorcall_offset*/ + (getattrfunc)0, /*tp_getattr*/ + (setattrfunc)Xxo_setattr, /*tp_setattr*/ + 0, /*tp_as_async*/ + 0, /*tp_repr*/ + 0, /*tp_as_number*/ + 0, /*tp_as_sequence*/ + 0, /*tp_as_mapping*/ + 0, /*tp_hash*/ + 0, /*tp_call*/ + 0, /*tp_str*/ + (getattrofunc)Xxo_getattro, /*tp_getattro*/ + 0, /*tp_setattro*/ + 0, /*tp_as_buffer*/ + Py_TPFLAGS_DEFAULT, /*tp_flags*/ + 0, /*tp_doc*/ + 0, /*tp_traverse*/ + 0, /*tp_clear*/ + 0, /*tp_richcompare*/ + 0, /*tp_weaklistoffset*/ + 0, /*tp_iter*/ + 0, /*tp_iternext*/ + Xxo_methods, /*tp_methods*/ + 0, /*tp_members*/ + 0, /*tp_getset*/ + 0, /*tp_base*/ + 0, /*tp_dict*/ + 0, /*tp_descr_get*/ + 0, /*tp_descr_set*/ + 0, /*tp_dictoffset*/ + 0, /*tp_init*/ + 0, /*tp_alloc*/ + 0, /*tp_new*/ + 0, /*tp_free*/ + 0, /*tp_is_gc*/ +}; +/* --------------------------------------------------------------------- */ + +/* Function of two integers returning integer */ + +PyDoc_STRVAR(xx_foo_doc, +"foo(i,j)\n\ +\n\ +Return the sum of i and j."); + +static PyObject * +xx_foo(PyObject *self, PyObject *args) +{ + long i, j; + long res; + if (!PyArg_ParseTuple(args, "ll:foo", &i, &j)) + return NULL; + res = i+j; /* XXX Do something here */ + return PyLong_FromLong(res); +} + + +/* Function of no arguments returning new Xxo object */ + +static PyObject * +xx_new(PyObject *self, PyObject *args) +{ + XxoObject *rv; + + if (!PyArg_ParseTuple(args, ":new")) + return NULL; + rv = newXxoObject(args); + if (rv == NULL) + return NULL; + return (PyObject *)rv; +} + +/* Example with subtle bug from extensions manual ("Thin Ice"). */ + +static PyObject * +xx_bug(PyObject *self, PyObject *args) +{ + PyObject *list, *item; + + if (!PyArg_ParseTuple(args, "O:bug", &list)) + return NULL; + + item = PyList_GetItem(list, 0); + /* Py_INCREF(item); */ + PyList_SetItem(list, 1, PyLong_FromLong(0L)); + PyObject_Print(item, stdout, 0); + printf("\n"); + /* Py_DECREF(item); */ + + Py_INCREF(Py_None); + return Py_None; +} + +/* Test bad format character */ + +static PyObject * +xx_roj(PyObject *self, PyObject *args) +{ + PyObject *a; + long b; + if (!PyArg_ParseTuple(args, "O#:roj", &a, &b)) + return NULL; + Py_INCREF(Py_None); + return Py_None; +} + + +/* ---------- */ + +static PyTypeObject Str_Type = { + /* The ob_type field must be initialized in the module init function + * to be portable to Windows without using C++. */ + PyVarObject_HEAD_INIT(NULL, 0) + "xxmodule.Str", /*tp_name*/ + 0, /*tp_basicsize*/ + 0, /*tp_itemsize*/ + /* methods */ + 0, /*tp_dealloc*/ + 0, /*tp_vectorcall_offset*/ + 0, /*tp_getattr*/ + 0, /*tp_setattr*/ + 0, /*tp_as_async*/ + 0, /*tp_repr*/ + 0, /*tp_as_number*/ + 0, /*tp_as_sequence*/ + 0, /*tp_as_mapping*/ + 0, /*tp_hash*/ + 0, /*tp_call*/ + 0, /*tp_str*/ + 0, /*tp_getattro*/ + 0, /*tp_setattro*/ + 0, /*tp_as_buffer*/ + Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/ + 0, /*tp_doc*/ + 0, /*tp_traverse*/ + 0, /*tp_clear*/ + 0, /*tp_richcompare*/ + 0, /*tp_weaklistoffset*/ + 0, /*tp_iter*/ + 0, /*tp_iternext*/ + 0, /*tp_methods*/ + 0, /*tp_members*/ + 0, /*tp_getset*/ + 0, /* see PyInit_xx */ /*tp_base*/ + 0, /*tp_dict*/ + 0, /*tp_descr_get*/ + 0, /*tp_descr_set*/ + 0, /*tp_dictoffset*/ + 0, /*tp_init*/ + 0, /*tp_alloc*/ + 0, /*tp_new*/ + 0, /*tp_free*/ + 0, /*tp_is_gc*/ +}; + +/* ---------- */ + +static PyObject * +null_richcompare(PyObject *self, PyObject *other, int op) +{ + Py_INCREF(Py_NotImplemented); + return Py_NotImplemented; +} + +static PyTypeObject Null_Type = { + /* The ob_type field must be initialized in the module init function + * to be portable to Windows without using C++. */ + PyVarObject_HEAD_INIT(NULL, 0) + "xxmodule.Null", /*tp_name*/ + 0, /*tp_basicsize*/ + 0, /*tp_itemsize*/ + /* methods */ + 0, /*tp_dealloc*/ + 0, /*tp_vectorcall_offset*/ + 0, /*tp_getattr*/ + 0, /*tp_setattr*/ + 0, /*tp_as_async*/ + 0, /*tp_repr*/ + 0, /*tp_as_number*/ + 0, /*tp_as_sequence*/ + 0, /*tp_as_mapping*/ + 0, /*tp_hash*/ + 0, /*tp_call*/ + 0, /*tp_str*/ + 0, /*tp_getattro*/ + 0, /*tp_setattro*/ + 0, /*tp_as_buffer*/ + Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/ + 0, /*tp_doc*/ + 0, /*tp_traverse*/ + 0, /*tp_clear*/ + null_richcompare, /*tp_richcompare*/ + 0, /*tp_weaklistoffset*/ + 0, /*tp_iter*/ + 0, /*tp_iternext*/ + 0, /*tp_methods*/ + 0, /*tp_members*/ + 0, /*tp_getset*/ + 0, /* see PyInit_xx */ /*tp_base*/ + 0, /*tp_dict*/ + 0, /*tp_descr_get*/ + 0, /*tp_descr_set*/ + 0, /*tp_dictoffset*/ + 0, /*tp_init*/ + 0, /*tp_alloc*/ + PyType_GenericNew, /*tp_new*/ + 0, /*tp_free*/ + 0, /*tp_is_gc*/ +}; + + +/* ---------- */ + + +/* List of functions defined in the module */ + +static PyMethodDef xx_methods[] = { + {"roj", xx_roj, METH_VARARGS, + PyDoc_STR("roj(a,b) -> None")}, + {"foo", xx_foo, METH_VARARGS, + xx_foo_doc}, + {"new", xx_new, METH_VARARGS, + PyDoc_STR("new() -> new Xx object")}, + {"bug", xx_bug, METH_VARARGS, + PyDoc_STR("bug(o) -> None")}, + {NULL, NULL} /* sentinel */ +}; + +PyDoc_STRVAR(module_doc, +"This is a template module just for instruction."); + + +static int +xx_exec(PyObject *m) +{ + /* Slot initialization is subject to the rules of initializing globals. + C99 requires the initializers to be "address constants". Function + designators like 'PyType_GenericNew', with implicit conversion to + a pointer, are valid C99 address constants. + + However, the unary '&' operator applied to a non-static variable + like 'PyBaseObject_Type' is not required to produce an address + constant. Compilers may support this (gcc does), MSVC does not. + + Both compilers are strictly standard conforming in this particular + behavior. + */ + Null_Type.tp_base = &PyBaseObject_Type; + Str_Type.tp_base = &PyUnicode_Type; + + /* Finalize the type object including setting type of the new type + * object; doing it here is required for portability, too. */ + if (PyType_Ready(&Xxo_Type) < 0) + goto fail; + + /* Add some symbolic constants to the module */ + if (ErrorObject == NULL) { + ErrorObject = PyErr_NewException("xx.error", NULL, NULL); + if (ErrorObject == NULL) + goto fail; + } + Py_INCREF(ErrorObject); + PyModule_AddObject(m, "error", ErrorObject); + + /* Add Str */ + if (PyType_Ready(&Str_Type) < 0) + goto fail; + PyModule_AddObject(m, "Str", (PyObject *)&Str_Type); + + /* Add Null */ + if (PyType_Ready(&Null_Type) < 0) + goto fail; + PyModule_AddObject(m, "Null", (PyObject *)&Null_Type); + return 0; + fail: + Py_XDECREF(m); + return -1; +} + +static struct PyModuleDef_Slot xx_slots[] = { + {Py_mod_exec, xx_exec}, + {0, NULL}, +}; + +static struct PyModuleDef xxmodule = { + PyModuleDef_HEAD_INIT, + "xx", + module_doc, + 0, + xx_methods, + xx_slots, + NULL, + NULL, + NULL +}; + +/* Export function for the module (*must* be called PyInit_xx) */ + +PyMODINIT_FUNC +PyInit_xx(void) +{ + return PyModuleDef_Init(&xxmodule); +} diff --git a/setuptools/_distutils/tests/xxmodule.c b/setuptools/_distutils/tests/xxmodule.c new file mode 100644 index 0000000000..a6e5071d1d --- /dev/null +++ b/setuptools/_distutils/tests/xxmodule.c @@ -0,0 +1,412 @@ + +/* Use this file as a template to start implementing a module that + also declares object types. All occurrences of 'Xxo' should be changed + to something reasonable for your objects. After that, all other + occurrences of 'xx' should be changed to something reasonable for your + module. If your module is named foo your sourcefile should be named + foomodule.c. + + You will probably want to delete all references to 'x_attr' and add + your own types of attributes instead. Maybe you want to name your + local variables other than 'self'. If your object type is needed in + other files, you'll have to create a file "foobarobject.h"; see + floatobject.h for an example. */ + +/* Xxo objects */ + +#include "Python.h" + +static PyObject *ErrorObject; + +typedef struct { + PyObject_HEAD + PyObject *x_attr; /* Attributes dictionary */ +} XxoObject; + +static PyTypeObject Xxo_Type; + +#define XxoObject_Check(v) Py_IS_TYPE(v, &Xxo_Type) + +static XxoObject * +newXxoObject(PyObject *arg) +{ + XxoObject *self; + self = PyObject_New(XxoObject, &Xxo_Type); + if (self == NULL) + return NULL; + self->x_attr = NULL; + return self; +} + +/* Xxo methods */ + +static void +Xxo_dealloc(XxoObject *self) +{ + Py_XDECREF(self->x_attr); + PyObject_Free(self); +} + +static PyObject * +Xxo_demo(XxoObject *self, PyObject *args) +{ + if (!PyArg_ParseTuple(args, ":demo")) + return NULL; + Py_INCREF(Py_None); + return Py_None; +} + +static PyMethodDef Xxo_methods[] = { + {"demo", (PyCFunction)Xxo_demo, METH_VARARGS, + PyDoc_STR("demo() -> None")}, + {NULL, NULL} /* sentinel */ +}; + +static PyObject * +Xxo_getattro(XxoObject *self, PyObject *name) +{ + if (self->x_attr != NULL) { + PyObject *v = PyDict_GetItemWithError(self->x_attr, name); + if (v != NULL) { + Py_INCREF(v); + return v; + } + else if (PyErr_Occurred()) { + return NULL; + } + } + return PyObject_GenericGetAttr((PyObject *)self, name); +} + +static int +Xxo_setattr(XxoObject *self, const char *name, PyObject *v) +{ + if (self->x_attr == NULL) { + self->x_attr = PyDict_New(); + if (self->x_attr == NULL) + return -1; + } + if (v == NULL) { + int rv = PyDict_DelItemString(self->x_attr, name); + if (rv < 0 && PyErr_ExceptionMatches(PyExc_KeyError)) + PyErr_SetString(PyExc_AttributeError, + "delete non-existing Xxo attribute"); + return rv; + } + else + return PyDict_SetItemString(self->x_attr, name, v); +} + +static PyTypeObject Xxo_Type = { + /* The ob_type field must be initialized in the module init function + * to be portable to Windows without using C++. */ + PyVarObject_HEAD_INIT(NULL, 0) + "xxmodule.Xxo", /*tp_name*/ + sizeof(XxoObject), /*tp_basicsize*/ + 0, /*tp_itemsize*/ + /* methods */ + (destructor)Xxo_dealloc, /*tp_dealloc*/ + 0, /*tp_vectorcall_offset*/ + (getattrfunc)0, /*tp_getattr*/ + (setattrfunc)Xxo_setattr, /*tp_setattr*/ + 0, /*tp_as_async*/ + 0, /*tp_repr*/ + 0, /*tp_as_number*/ + 0, /*tp_as_sequence*/ + 0, /*tp_as_mapping*/ + 0, /*tp_hash*/ + 0, /*tp_call*/ + 0, /*tp_str*/ + (getattrofunc)Xxo_getattro, /*tp_getattro*/ + 0, /*tp_setattro*/ + 0, /*tp_as_buffer*/ + Py_TPFLAGS_DEFAULT, /*tp_flags*/ + 0, /*tp_doc*/ + 0, /*tp_traverse*/ + 0, /*tp_clear*/ + 0, /*tp_richcompare*/ + 0, /*tp_weaklistoffset*/ + 0, /*tp_iter*/ + 0, /*tp_iternext*/ + Xxo_methods, /*tp_methods*/ + 0, /*tp_members*/ + 0, /*tp_getset*/ + 0, /*tp_base*/ + 0, /*tp_dict*/ + 0, /*tp_descr_get*/ + 0, /*tp_descr_set*/ + 0, /*tp_dictoffset*/ + 0, /*tp_init*/ + 0, /*tp_alloc*/ + 0, /*tp_new*/ + 0, /*tp_free*/ + 0, /*tp_is_gc*/ +}; +/* --------------------------------------------------------------------- */ + +/* Function of two integers returning integer */ + +PyDoc_STRVAR(xx_foo_doc, +"foo(i,j)\n\ +\n\ +Return the sum of i and j."); + +static PyObject * +xx_foo(PyObject *self, PyObject *args) +{ + long i, j; + long res; + if (!PyArg_ParseTuple(args, "ll:foo", &i, &j)) + return NULL; + res = i+j; /* XXX Do something here */ + return PyLong_FromLong(res); +} + + +/* Function of no arguments returning new Xxo object */ + +static PyObject * +xx_new(PyObject *self, PyObject *args) +{ + XxoObject *rv; + + if (!PyArg_ParseTuple(args, ":new")) + return NULL; + rv = newXxoObject(args); + if (rv == NULL) + return NULL; + return (PyObject *)rv; +} + +/* Example with subtle bug from extensions manual ("Thin Ice"). */ + +static PyObject * +xx_bug(PyObject *self, PyObject *args) +{ + PyObject *list, *item; + + if (!PyArg_ParseTuple(args, "O:bug", &list)) + return NULL; + + item = PyList_GetItem(list, 0); + /* Py_INCREF(item); */ + PyList_SetItem(list, 1, PyLong_FromLong(0L)); + PyObject_Print(item, stdout, 0); + printf("\n"); + /* Py_DECREF(item); */ + + Py_INCREF(Py_None); + return Py_None; +} + +/* Test bad format character */ + +static PyObject * +xx_roj(PyObject *self, PyObject *args) +{ + PyObject *a; + long b; + if (!PyArg_ParseTuple(args, "O#:roj", &a, &b)) + return NULL; + Py_INCREF(Py_None); + return Py_None; +} + + +/* ---------- */ + +static PyTypeObject Str_Type = { + /* The ob_type field must be initialized in the module init function + * to be portable to Windows without using C++. */ + PyVarObject_HEAD_INIT(NULL, 0) + "xxmodule.Str", /*tp_name*/ + 0, /*tp_basicsize*/ + 0, /*tp_itemsize*/ + /* methods */ + 0, /*tp_dealloc*/ + 0, /*tp_vectorcall_offset*/ + 0, /*tp_getattr*/ + 0, /*tp_setattr*/ + 0, /*tp_as_async*/ + 0, /*tp_repr*/ + 0, /*tp_as_number*/ + 0, /*tp_as_sequence*/ + 0, /*tp_as_mapping*/ + 0, /*tp_hash*/ + 0, /*tp_call*/ + 0, /*tp_str*/ + 0, /*tp_getattro*/ + 0, /*tp_setattro*/ + 0, /*tp_as_buffer*/ + Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/ + 0, /*tp_doc*/ + 0, /*tp_traverse*/ + 0, /*tp_clear*/ + 0, /*tp_richcompare*/ + 0, /*tp_weaklistoffset*/ + 0, /*tp_iter*/ + 0, /*tp_iternext*/ + 0, /*tp_methods*/ + 0, /*tp_members*/ + 0, /*tp_getset*/ + 0, /* see PyInit_xx */ /*tp_base*/ + 0, /*tp_dict*/ + 0, /*tp_descr_get*/ + 0, /*tp_descr_set*/ + 0, /*tp_dictoffset*/ + 0, /*tp_init*/ + 0, /*tp_alloc*/ + 0, /*tp_new*/ + 0, /*tp_free*/ + 0, /*tp_is_gc*/ +}; + +/* ---------- */ + +static PyObject * +null_richcompare(PyObject *self, PyObject *other, int op) +{ + Py_INCREF(Py_NotImplemented); + return Py_NotImplemented; +} + +static PyTypeObject Null_Type = { + /* The ob_type field must be initialized in the module init function + * to be portable to Windows without using C++. */ + PyVarObject_HEAD_INIT(NULL, 0) + "xxmodule.Null", /*tp_name*/ + 0, /*tp_basicsize*/ + 0, /*tp_itemsize*/ + /* methods */ + 0, /*tp_dealloc*/ + 0, /*tp_vectorcall_offset*/ + 0, /*tp_getattr*/ + 0, /*tp_setattr*/ + 0, /*tp_as_async*/ + 0, /*tp_repr*/ + 0, /*tp_as_number*/ + 0, /*tp_as_sequence*/ + 0, /*tp_as_mapping*/ + 0, /*tp_hash*/ + 0, /*tp_call*/ + 0, /*tp_str*/ + 0, /*tp_getattro*/ + 0, /*tp_setattro*/ + 0, /*tp_as_buffer*/ + Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/ + 0, /*tp_doc*/ + 0, /*tp_traverse*/ + 0, /*tp_clear*/ + null_richcompare, /*tp_richcompare*/ + 0, /*tp_weaklistoffset*/ + 0, /*tp_iter*/ + 0, /*tp_iternext*/ + 0, /*tp_methods*/ + 0, /*tp_members*/ + 0, /*tp_getset*/ + 0, /* see PyInit_xx */ /*tp_base*/ + 0, /*tp_dict*/ + 0, /*tp_descr_get*/ + 0, /*tp_descr_set*/ + 0, /*tp_dictoffset*/ + 0, /*tp_init*/ + 0, /*tp_alloc*/ + PyType_GenericNew, /*tp_new*/ + 0, /*tp_free*/ + 0, /*tp_is_gc*/ +}; + + +/* ---------- */ + + +/* List of functions defined in the module */ + +static PyMethodDef xx_methods[] = { + {"roj", xx_roj, METH_VARARGS, + PyDoc_STR("roj(a,b) -> None")}, + {"foo", xx_foo, METH_VARARGS, + xx_foo_doc}, + {"new", xx_new, METH_VARARGS, + PyDoc_STR("new() -> new Xx object")}, + {"bug", xx_bug, METH_VARARGS, + PyDoc_STR("bug(o) -> None")}, + {NULL, NULL} /* sentinel */ +}; + +PyDoc_STRVAR(module_doc, +"This is a template module just for instruction."); + + +static int +xx_exec(PyObject *m) +{ + /* Slot initialization is subject to the rules of initializing globals. + C99 requires the initializers to be "address constants". Function + designators like 'PyType_GenericNew', with implicit conversion to + a pointer, are valid C99 address constants. + + However, the unary '&' operator applied to a non-static variable + like 'PyBaseObject_Type' is not required to produce an address + constant. Compilers may support this (gcc does), MSVC does not. + + Both compilers are strictly standard conforming in this particular + behavior. + */ + Null_Type.tp_base = &PyBaseObject_Type; + Str_Type.tp_base = &PyUnicode_Type; + + /* Finalize the type object including setting type of the new type + * object; doing it here is required for portability, too. */ + if (PyType_Ready(&Xxo_Type) < 0) { + return -1; + } + + /* Add some symbolic constants to the module */ + if (ErrorObject == NULL) { + ErrorObject = PyErr_NewException("xx.error", NULL, NULL); + if (ErrorObject == NULL) { + return -1; + } + } + int rc = PyModule_AddType(m, (PyTypeObject *)ErrorObject); + Py_DECREF(ErrorObject); + if (rc < 0) { + return -1; + } + + /* Add Str and Null types */ + if (PyModule_AddType(m, &Str_Type) < 0) { + return -1; + } + if (PyModule_AddType(m, &Null_Type) < 0) { + return -1; + } + + return 0; +} + +static struct PyModuleDef_Slot xx_slots[] = { + {Py_mod_exec, xx_exec}, + {0, NULL}, +}; + +static struct PyModuleDef xxmodule = { + PyModuleDef_HEAD_INIT, + "xx", + module_doc, + 0, + xx_methods, + xx_slots, + NULL, + NULL, + NULL +}; + +/* Export function for the module (*must* be called PyInit_xx) */ + +PyMODINIT_FUNC +PyInit_xx(void) +{ + return PyModuleDef_Init(&xxmodule); +} diff --git a/setuptools/_distutils/text_file.py b/setuptools/_distutils/text_file.py new file mode 100644 index 0000000000..89d9048d59 --- /dev/null +++ b/setuptools/_distutils/text_file.py @@ -0,0 +1,286 @@ +"""text_file + +provides the TextFile class, which gives an interface to text files +that (optionally) takes care of stripping comments, ignoring blank +lines, and joining lines with backslashes.""" + +import sys + + +class TextFile: + """Provides a file-like object that takes care of all the things you + commonly want to do when processing a text file that has some + line-by-line syntax: strip comments (as long as "#" is your + comment character), skip blank lines, join adjacent lines by + escaping the newline (ie. backslash at end of line), strip + leading and/or trailing whitespace. All of these are optional + and independently controllable. + + Provides a 'warn()' method so you can generate warning messages that + report physical line number, even if the logical line in question + spans multiple physical lines. Also provides 'unreadline()' for + implementing line-at-a-time lookahead. + + Constructor is called as: + + TextFile (filename=None, file=None, **options) + + It bombs (RuntimeError) if both 'filename' and 'file' are None; + 'filename' should be a string, and 'file' a file object (or + something that provides 'readline()' and 'close()' methods). It is + recommended that you supply at least 'filename', so that TextFile + can include it in warning messages. If 'file' is not supplied, + TextFile creates its own using 'io.open()'. + + The options are all boolean, and affect the value returned by + 'readline()': + strip_comments [default: true] + strip from "#" to end-of-line, as well as any whitespace + leading up to the "#" -- unless it is escaped by a backslash + lstrip_ws [default: false] + strip leading whitespace from each line before returning it + rstrip_ws [default: true] + strip trailing whitespace (including line terminator!) from + each line before returning it + skip_blanks [default: true} + skip lines that are empty *after* stripping comments and + whitespace. (If both lstrip_ws and rstrip_ws are false, + then some lines may consist of solely whitespace: these will + *not* be skipped, even if 'skip_blanks' is true.) + join_lines [default: false] + if a backslash is the last non-newline character on a line + after stripping comments and whitespace, join the following line + to it to form one "logical line"; if N consecutive lines end + with a backslash, then N+1 physical lines will be joined to + form one logical line. + collapse_join [default: false] + strip leading whitespace from lines that are joined to their + predecessor; only matters if (join_lines and not lstrip_ws) + errors [default: 'strict'] + error handler used to decode the file content + + Note that since 'rstrip_ws' can strip the trailing newline, the + semantics of 'readline()' must differ from those of the builtin file + object's 'readline()' method! In particular, 'readline()' returns + None for end-of-file: an empty string might just be a blank line (or + an all-whitespace line), if 'rstrip_ws' is true but 'skip_blanks' is + not.""" + + default_options = { + 'strip_comments': 1, + 'skip_blanks': 1, + 'lstrip_ws': 0, + 'rstrip_ws': 1, + 'join_lines': 0, + 'collapse_join': 0, + 'errors': 'strict', + } + + def __init__(self, filename=None, file=None, **options): + """Construct a new TextFile object. At least one of 'filename' + (a string) and 'file' (a file-like object) must be supplied. + They keyword argument options are described above and affect + the values returned by 'readline()'.""" + if filename is None and file is None: + raise RuntimeError( + "you must supply either or both of 'filename' and 'file'" + ) + + # set values for all options -- either from client option hash + # or fallback to default_options + for opt in self.default_options.keys(): + if opt in options: + setattr(self, opt, options[opt]) + else: + setattr(self, opt, self.default_options[opt]) + + # sanity check client option hash + for opt in options.keys(): + if opt not in self.default_options: + raise KeyError(f"invalid TextFile option '{opt}'") + + if file is None: + self.open(filename) + else: + self.filename = filename + self.file = file + self.current_line = 0 # assuming that file is at BOF! + + # 'linebuf' is a stack of lines that will be emptied before we + # actually read from the file; it's only populated by an + # 'unreadline()' operation + self.linebuf = [] + + def open(self, filename): + """Open a new file named 'filename'. This overrides both the + 'filename' and 'file' arguments to the constructor.""" + self.filename = filename + self.file = open(self.filename, errors=self.errors, encoding='utf-8') + self.current_line = 0 + + def close(self): + """Close the current file and forget everything we know about it + (filename, current line number).""" + file = self.file + self.file = None + self.filename = None + self.current_line = None + file.close() + + def gen_error(self, msg, line=None): + outmsg = [] + if line is None: + line = self.current_line + outmsg.append(self.filename + ", ") + if isinstance(line, (list, tuple)): + outmsg.append("lines {}-{}: ".format(*line)) + else: + outmsg.append(f"line {int(line)}: ") + outmsg.append(str(msg)) + return "".join(outmsg) + + def error(self, msg, line=None): + raise ValueError("error: " + self.gen_error(msg, line)) + + def warn(self, msg, line=None): + """Print (to stderr) a warning message tied to the current logical + line in the current file. If the current logical line in the + file spans multiple physical lines, the warning refers to the + whole range, eg. "lines 3-5". If 'line' supplied, it overrides + the current line number; it may be a list or tuple to indicate a + range of physical lines, or an integer for a single physical + line.""" + sys.stderr.write("warning: " + self.gen_error(msg, line) + "\n") + + def readline(self): # noqa: C901 + """Read and return a single logical line from the current file (or + from an internal buffer if lines have previously been "unread" + with 'unreadline()'). If the 'join_lines' option is true, this + may involve reading multiple physical lines concatenated into a + single string. Updates the current line number, so calling + 'warn()' after 'readline()' emits a warning about the physical + line(s) just read. Returns None on end-of-file, since the empty + string can occur if 'rstrip_ws' is true but 'strip_blanks' is + not.""" + # If any "unread" lines waiting in 'linebuf', return the top + # one. (We don't actually buffer read-ahead data -- lines only + # get put in 'linebuf' if the client explicitly does an + # 'unreadline()'. + if self.linebuf: + line = self.linebuf[-1] + del self.linebuf[-1] + return line + + buildup_line = '' + + while True: + # read the line, make it None if EOF + line = self.file.readline() + if line == '': + line = None + + if self.strip_comments and line: + # Look for the first "#" in the line. If none, never + # mind. If we find one and it's the first character, or + # is not preceded by "\", then it starts a comment -- + # strip the comment, strip whitespace before it, and + # carry on. Otherwise, it's just an escaped "#", so + # unescape it (and any other escaped "#"'s that might be + # lurking in there) and otherwise leave the line alone. + + pos = line.find("#") + if pos == -1: # no "#" -- no comments + pass + + # It's definitely a comment -- either "#" is the first + # character, or it's elsewhere and unescaped. + elif pos == 0 or line[pos - 1] != "\\": + # Have to preserve the trailing newline, because it's + # the job of a later step (rstrip_ws) to remove it -- + # and if rstrip_ws is false, we'd better preserve it! + # (NB. this means that if the final line is all comment + # and has no trailing newline, we will think that it's + # EOF; I think that's OK.) + eol = (line[-1] == '\n') and '\n' or '' + line = line[0:pos] + eol + + # If all that's left is whitespace, then skip line + # *now*, before we try to join it to 'buildup_line' -- + # that way constructs like + # hello \\ + # # comment that should be ignored + # there + # result in "hello there". + if line.strip() == "": + continue + else: # it's an escaped "#" + line = line.replace("\\#", "#") + + # did previous line end with a backslash? then accumulate + if self.join_lines and buildup_line: + # oops: end of file + if line is None: + self.warn("continuation line immediately precedes end-of-file") + return buildup_line + + if self.collapse_join: + line = line.lstrip() + line = buildup_line + line + + # careful: pay attention to line number when incrementing it + if isinstance(self.current_line, list): + self.current_line[1] = self.current_line[1] + 1 + else: + self.current_line = [self.current_line, self.current_line + 1] + # just an ordinary line, read it as usual + else: + if line is None: # eof + return None + + # still have to be careful about incrementing the line number! + if isinstance(self.current_line, list): + self.current_line = self.current_line[1] + 1 + else: + self.current_line = self.current_line + 1 + + # strip whitespace however the client wants (leading and + # trailing, or one or the other, or neither) + if self.lstrip_ws and self.rstrip_ws: + line = line.strip() + elif self.lstrip_ws: + line = line.lstrip() + elif self.rstrip_ws: + line = line.rstrip() + + # blank line (whether we rstrip'ed or not)? skip to next line + # if appropriate + if line in ('', '\n') and self.skip_blanks: + continue + + if self.join_lines: + if line[-1] == '\\': + buildup_line = line[:-1] + continue + + if line[-2:] == '\\\n': + buildup_line = line[0:-2] + '\n' + continue + + # well, I guess there's some actual content there: return it + return line + + def readlines(self): + """Read and return the list of all logical lines remaining in the + current file.""" + lines = [] + while True: + line = self.readline() + if line is None: + return lines + lines.append(line) + + def unreadline(self, line): + """Push 'line' (a string) onto an internal buffer that will be + checked by future 'readline()' calls. Handy for implementing + a parser with line-at-a-time lookahead.""" + self.linebuf.append(line) diff --git a/setuptools/_distutils/unixccompiler.py b/setuptools/_distutils/unixccompiler.py new file mode 100644 index 0000000000..20b8ce6b9b --- /dev/null +++ b/setuptools/_distutils/unixccompiler.py @@ -0,0 +1,9 @@ +import importlib + +from .compilers.C import unix + +UnixCCompiler = unix.Compiler + +# ensure import of unixccompiler implies ccompiler imported +# (pypa/setuptools#4871) +importlib.import_module('distutils.ccompiler') diff --git a/setuptools/_distutils/util.py b/setuptools/_distutils/util.py new file mode 100644 index 0000000000..6dbe049f42 --- /dev/null +++ b/setuptools/_distutils/util.py @@ -0,0 +1,518 @@ +"""distutils.util + +Miscellaneous utility functions -- anything that doesn't fit into +one of the other *util.py modules. +""" + +from __future__ import annotations + +import functools +import importlib.util +import os +import pathlib +import re +import string +import subprocess +import sys +import sysconfig +import tempfile +from collections.abc import Callable, Iterable, Mapping +from typing import TYPE_CHECKING, AnyStr + +from jaraco.functools import pass_none + +from ._log import log +from ._modified import newer +from .errors import DistutilsByteCompileError, DistutilsPlatformError +from .spawn import spawn + +if TYPE_CHECKING: + from typing_extensions import TypeVarTuple, Unpack + + _Ts = TypeVarTuple("_Ts") + + +def get_host_platform() -> str: + """ + Return a string that identifies the current platform. Use this + function to distinguish platform-specific build directories and + platform-specific built distributions. + """ + + # This function initially exposed platforms as defined in Python 3.9 + # even with older Python versions when distutils was split out. + # Now it delegates to stdlib sysconfig. + + return sysconfig.get_platform() + + +def get_platform() -> str: + if os.name == 'nt': + TARGET_TO_PLAT = { + 'x86': 'win32', + 'x64': 'win-amd64', + 'arm': 'win-arm32', + 'arm64': 'win-arm64', + } + target = os.environ.get('VSCMD_ARG_TGT_ARCH') + return TARGET_TO_PLAT.get(target) or get_host_platform() + return get_host_platform() + + +if sys.platform == 'darwin': + _syscfg_macosx_ver = None # cache the version pulled from sysconfig +MACOSX_VERSION_VAR = 'MACOSX_DEPLOYMENT_TARGET' + + +def _clear_cached_macosx_ver(): + """For testing only. Do not call.""" + global _syscfg_macosx_ver + _syscfg_macosx_ver = None + + +def get_macosx_target_ver_from_syscfg(): + """Get the version of macOS latched in the Python interpreter configuration. + Returns the version as a string or None if can't obtain one. Cached.""" + global _syscfg_macosx_ver + if _syscfg_macosx_ver is None: + from distutils import sysconfig + + ver = sysconfig.get_config_var(MACOSX_VERSION_VAR) or '' + if ver: + _syscfg_macosx_ver = ver + return _syscfg_macosx_ver + + +def get_macosx_target_ver(): + """Return the version of macOS for which we are building. + + The target version defaults to the version in sysconfig latched at time + the Python interpreter was built, unless overridden by an environment + variable. If neither source has a value, then None is returned""" + + syscfg_ver = get_macosx_target_ver_from_syscfg() + env_ver = os.environ.get(MACOSX_VERSION_VAR) + + if env_ver: + # Validate overridden version against sysconfig version, if have both. + # Ensure that the deployment target of the build process is not less + # than 10.3 if the interpreter was built for 10.3 or later. This + # ensures extension modules are built with correct compatibility + # values, specifically LDSHARED which can use + # '-undefined dynamic_lookup' which only works on >= 10.3. + if ( + syscfg_ver + and split_version(syscfg_ver) >= [10, 3] + and split_version(env_ver) < [10, 3] + ): + my_msg = ( + '$' + MACOSX_VERSION_VAR + ' mismatch: ' + f'now "{env_ver}" but "{syscfg_ver}" during configure; ' + 'must use 10.3 or later' + ) + raise DistutilsPlatformError(my_msg) + return env_ver + return syscfg_ver + + +def split_version(s: str) -> list[int]: + """Convert a dot-separated string into a list of numbers for comparisons""" + return [int(n) for n in s.split('.')] + + +@pass_none +def convert_path(pathname: str | os.PathLike[str]) -> str: + r""" + Allow for pathlib.Path inputs, coax to a native path string. + + If None is passed, will just pass it through as + Setuptools relies on this behavior. + + >>> convert_path(None) is None + True + + Removes empty paths. + + >>> convert_path('foo/./bar').replace('\\', '/') + 'foo/bar' + """ + return os.fspath(pathlib.PurePath(pathname)) + + +def change_root( + new_root: AnyStr | os.PathLike[AnyStr], pathname: AnyStr | os.PathLike[AnyStr] +) -> AnyStr: + """Return 'pathname' with 'new_root' prepended. If 'pathname' is + relative, this is equivalent to "os.path.join(new_root,pathname)". + Otherwise, it requires making 'pathname' relative and then joining the + two, which is tricky on DOS/Windows and Mac OS. + """ + if os.name == 'posix': + if not os.path.isabs(pathname): + return os.path.join(new_root, pathname) + else: + return os.path.join(new_root, pathname[1:]) + + elif os.name == 'nt': + (drive, path) = os.path.splitdrive(pathname) + if path[0] == os.sep: + path = path[1:] + return os.path.join(new_root, path) + + raise DistutilsPlatformError(f"nothing known about platform '{os.name}'") + + +@functools.lru_cache +def check_environ() -> None: + """Ensure that 'os.environ' has all the environment variables we + guarantee that users can use in config files, command-line options, + etc. Currently this includes: + HOME - user's home directory (Unix only) + PLAT - description of the current platform, including hardware + and OS (see 'get_platform()') + """ + if os.name == 'posix' and 'HOME' not in os.environ: + try: + import pwd + + os.environ['HOME'] = pwd.getpwuid(os.getuid())[5] + except (ImportError, KeyError): + # bpo-10496: if the current user identifier doesn't exist in the + # password database, do nothing + pass + + if 'PLAT' not in os.environ: + os.environ['PLAT'] = get_platform() + + +def subst_vars(s, local_vars: Mapping[str, object]) -> str: + """ + Perform variable substitution on 'string'. + Variables are indicated by format-style braces ("{var}"). + Variable is substituted by the value found in the 'local_vars' + dictionary or in 'os.environ' if it's not in 'local_vars'. + 'os.environ' is first checked/augmented to guarantee that it contains + certain values: see 'check_environ()'. Raise ValueError for any + variables not found in either 'local_vars' or 'os.environ'. + """ + check_environ() + lookup = dict(os.environ) + lookup.update((name, str(value)) for name, value in local_vars.items()) + try: + return _subst_compat(s).format_map(lookup) + except KeyError as var: + raise ValueError(f"invalid variable {var}") + + +def _subst_compat(s): + """ + Replace shell/Perl-style variable substitution with + format-style. For compatibility. + """ + + def _subst(match): + return f'{{{match.group(1)}}}' + + repl = re.sub(r'\$([a-zA-Z_][a-zA-Z_0-9]*)', _subst, s) + if repl != s: + import warnings + + warnings.warn( + "shell/Perl-style substitutions are deprecated", + DeprecationWarning, + ) + return repl + + +def grok_environment_error(exc: object, prefix: str = "error: ") -> str: + # Function kept for backward compatibility. + # Used to try clever things with EnvironmentErrors, + # but nowadays str(exception) produces good messages. + return prefix + str(exc) + + +# Needed by 'split_quoted()' +_wordchars_re = _squote_re = _dquote_re = None + + +def _init_regex(): + global _wordchars_re, _squote_re, _dquote_re + _wordchars_re = re.compile(rf'[^\\\'\"{string.whitespace} ]*') + _squote_re = re.compile(r"'(?:[^'\\]|\\.)*'") + _dquote_re = re.compile(r'"(?:[^"\\]|\\.)*"') + + +def split_quoted(s: str) -> list[str]: + """Split a string up according to Unix shell-like rules for quotes and + backslashes. In short: words are delimited by spaces, as long as those + spaces are not escaped by a backslash, or inside a quoted string. + Single and double quotes are equivalent, and the quote characters can + be backslash-escaped. The backslash is stripped from any two-character + escape sequence, leaving only the escaped character. The quote + characters are stripped from any quoted string. Returns a list of + words. + """ + + # This is a nice algorithm for splitting up a single string, since it + # doesn't require character-by-character examination. It was a little + # bit of a brain-bender to get it working right, though... + if _wordchars_re is None: + _init_regex() + + s = s.strip() + words = [] + pos = 0 + + while s: + m = _wordchars_re.match(s, pos) + end = m.end() + if end == len(s): + words.append(s[:end]) + break + + if s[end] in string.whitespace: + # unescaped, unquoted whitespace: now + # we definitely have a word delimiter + words.append(s[:end]) + s = s[end:].lstrip() + pos = 0 + + elif s[end] == '\\': + # preserve whatever is being escaped; + # will become part of the current word + s = s[:end] + s[end + 1 :] + pos = end + 1 + + else: + if s[end] == "'": # slurp singly-quoted string + m = _squote_re.match(s, end) + elif s[end] == '"': # slurp doubly-quoted string + m = _dquote_re.match(s, end) + else: + raise RuntimeError(f"this can't happen (bad char '{s[end]}')") + + if m is None: + raise ValueError(f"bad string (mismatched {s[end]} quotes?)") + + (beg, end) = m.span() + s = s[:beg] + s[beg + 1 : end - 1] + s[end:] + pos = m.end() - 2 + + if pos >= len(s): + words.append(s) + break + + return words + + +# split_quoted () + + +def execute( + func: Callable[[Unpack[_Ts]], object], + args: tuple[Unpack[_Ts]], + msg: object = None, + verbose: bool = False, + dry_run: bool = False, +) -> None: + """ + Perform some action that affects the outside world (e.g. by + writing to the filesystem). Such actions are special because they + are disabled by the 'dry_run' flag. This method handles that + complication; simply supply the + function to call and an argument tuple for it (to embody the + "external action" being performed) and an optional message to + emit. + """ + if msg is None: + msg = f"{func.__name__}{args!r}" + if msg[-2:] == ',)': # correct for singleton tuple + msg = msg[0:-2] + ')' + + log.info(msg) + if not dry_run: + func(*args) + + +def strtobool(val: str) -> bool: + """Convert a string representation of truth to true (1) or false (0). + + True values are 'y', 'yes', 't', 'true', 'on', and '1'; false values + are 'n', 'no', 'f', 'false', 'off', and '0'. Raises ValueError if + 'val' is anything else. + """ + val = val.lower() + if val in ('y', 'yes', 't', 'true', 'on', '1'): + return True + elif val in ('n', 'no', 'f', 'false', 'off', '0'): + return False + else: + raise ValueError(f"invalid truth value {val!r}") + + +def byte_compile( # noqa: C901 + py_files: Iterable[str], + optimize: int = 0, + force: bool = False, + prefix: str | None = None, + base_dir: str | None = None, + verbose: bool = True, + dry_run: bool = False, + direct: bool | None = None, +) -> None: + """Byte-compile a collection of Python source files to .pyc + files in a __pycache__ subdirectory. 'py_files' is a list + of files to compile; any files that don't end in ".py" are silently + skipped. 'optimize' must be one of the following: + 0 - don't optimize + 1 - normal optimization (like "python -O") + 2 - extra optimization (like "python -OO") + If 'force' is true, all files are recompiled regardless of + timestamps. + + The source filename encoded in each bytecode file defaults to the + filenames listed in 'py_files'; you can modify these with 'prefix' and + 'basedir'. 'prefix' is a string that will be stripped off of each + source filename, and 'base_dir' is a directory name that will be + prepended (after 'prefix' is stripped). You can supply either or both + (or neither) of 'prefix' and 'base_dir', as you wish. + + If 'dry_run' is true, doesn't actually do anything that would + affect the filesystem. + + Byte-compilation is either done directly in this interpreter process + with the standard py_compile module, or indirectly by writing a + temporary script and executing it. Normally, you should let + 'byte_compile()' figure out to use direct compilation or not (see + the source for details). The 'direct' flag is used by the script + generated in indirect mode; unless you know what you're doing, leave + it set to None. + """ + + # nothing is done if sys.dont_write_bytecode is True + if sys.dont_write_bytecode: + raise DistutilsByteCompileError('byte-compiling is disabled.') + + # First, if the caller didn't force us into direct or indirect mode, + # figure out which mode we should be in. We take a conservative + # approach: choose direct mode *only* if the current interpreter is + # in debug mode and optimize is 0. If we're not in debug mode (-O + # or -OO), we don't know which level of optimization this + # interpreter is running with, so we can't do direct + # byte-compilation and be certain that it's the right thing. Thus, + # always compile indirectly if the current interpreter is in either + # optimize mode, or if either optimization level was requested by + # the caller. + if direct is None: + direct = __debug__ and optimize == 0 + + # "Indirect" byte-compilation: write a temporary script and then + # run it with the appropriate flags. + if not direct: + (script_fd, script_name) = tempfile.mkstemp(".py") + log.info("writing byte-compilation script '%s'", script_name) + if not dry_run: + script = os.fdopen(script_fd, "w", encoding='utf-8') + + with script: + script.write( + """\ +from distutils.util import byte_compile +files = [ +""" + ) + + # XXX would be nice to write absolute filenames, just for + # safety's sake (script should be more robust in the face of + # chdir'ing before running it). But this requires abspath'ing + # 'prefix' as well, and that breaks the hack in build_lib's + # 'byte_compile()' method that carefully tacks on a trailing + # slash (os.sep really) to make sure the prefix here is "just + # right". This whole prefix business is rather delicate -- the + # problem is that it's really a directory, but I'm treating it + # as a dumb string, so trailing slashes and so forth matter. + + script.write(",\n".join(map(repr, py_files)) + "]\n") + script.write( + f""" +byte_compile(files, optimize={optimize!r}, force={force!r}, + prefix={prefix!r}, base_dir={base_dir!r}, + verbose={verbose!r}, dry_run=False, + direct=True) +""" + ) + + cmd = [sys.executable] + cmd.extend(subprocess._optim_args_from_interpreter_flags()) + cmd.append(script_name) + spawn(cmd, dry_run=dry_run) + execute(os.remove, (script_name,), f"removing {script_name}", dry_run=dry_run) + + # "Direct" byte-compilation: use the py_compile module to compile + # right here, right now. Note that the script generated in indirect + # mode simply calls 'byte_compile()' in direct mode, a weird sort of + # cross-process recursion. Hey, it works! + else: + from py_compile import compile + + for file in py_files: + if file[-3:] != ".py": + # This lets us be lazy and not filter filenames in + # the "install_lib" command. + continue + + # Terminology from the py_compile module: + # cfile - byte-compiled file + # dfile - purported source filename (same as 'file' by default) + if optimize >= 0: + opt = '' if optimize == 0 else optimize + cfile = importlib.util.cache_from_source(file, optimization=opt) + else: + cfile = importlib.util.cache_from_source(file) + dfile = file + if prefix: + if file[: len(prefix)] != prefix: + raise ValueError( + f"invalid prefix: filename {file!r} doesn't start with {prefix!r}" + ) + dfile = dfile[len(prefix) :] + if base_dir: + dfile = os.path.join(base_dir, dfile) + + cfile_base = os.path.basename(cfile) + if direct: + if force or newer(file, cfile): + log.info("byte-compiling %s to %s", file, cfile_base) + if not dry_run: + compile(file, cfile, dfile) + else: + log.debug("skipping byte-compilation of %s to %s", file, cfile_base) + + +def rfc822_escape(header: str) -> str: + """Return a version of the string escaped for inclusion in an + RFC-822 header, by ensuring there are 8 spaces space after each newline. + """ + indent = 8 * " " + lines = header.splitlines(keepends=True) + + # Emulate the behaviour of `str.split` + # (the terminal line break in `splitlines` does not result in an extra line): + ends_in_newline = lines and lines[-1].splitlines()[0] != lines[-1] + suffix = indent if ends_in_newline else "" + + return indent.join(lines) + suffix + + +def is_mingw() -> bool: + """Returns True if the current platform is mingw. + + Python compiled with Mingw-w64 has sys.platform == 'win32' and + get_platform() starts with 'mingw'. + """ + return sys.platform == 'win32' and get_platform().startswith('mingw') + + +def is_freethreaded(): + """Return True if the Python interpreter is built with free threading support.""" + return bool(sysconfig.get_config_var('Py_GIL_DISABLED')) diff --git a/setuptools/_distutils/version.py b/setuptools/_distutils/version.py new file mode 100644 index 0000000000..2223ee9c8c --- /dev/null +++ b/setuptools/_distutils/version.py @@ -0,0 +1,348 @@ +# +# distutils/version.py +# +# Implements multiple version numbering conventions for the +# Python Module Distribution Utilities. +# +# $Id$ +# + +"""Provides classes to represent module version numbers (one class for +each style of version numbering). There are currently two such classes +implemented: StrictVersion and LooseVersion. + +Every version number class implements the following interface: + * the 'parse' method takes a string and parses it to some internal + representation; if the string is an invalid version number, + 'parse' raises a ValueError exception + * the class constructor takes an optional string argument which, + if supplied, is passed to 'parse' + * __str__ reconstructs the string that was passed to 'parse' (or + an equivalent string -- ie. one that will generate an equivalent + version number instance) + * __repr__ generates Python code to recreate the version number instance + * _cmp compares the current instance with either another instance + of the same class or a string (which will be parsed to an instance + of the same class, thus must follow the same rules) +""" + +import contextlib +import re +import warnings + + +@contextlib.contextmanager +def suppress_known_deprecation(): + with warnings.catch_warnings(record=True) as ctx: + warnings.filterwarnings( + action='default', + category=DeprecationWarning, + message="distutils Version classes are deprecated.", + ) + yield ctx + + +class Version: + """Abstract base class for version numbering classes. Just provides + constructor (__init__) and reproducer (__repr__), because those + seem to be the same for all version numbering classes; and route + rich comparisons to _cmp. + """ + + def __init__(self, vstring=None): + if vstring: + self.parse(vstring) + warnings.warn( + "distutils Version classes are deprecated. Use packaging.version instead.", + DeprecationWarning, + stacklevel=2, + ) + + def __repr__(self): + return f"{self.__class__.__name__} ('{self}')" + + def __eq__(self, other): + c = self._cmp(other) + if c is NotImplemented: + return c + return c == 0 + + def __lt__(self, other): + c = self._cmp(other) + if c is NotImplemented: + return c + return c < 0 + + def __le__(self, other): + c = self._cmp(other) + if c is NotImplemented: + return c + return c <= 0 + + def __gt__(self, other): + c = self._cmp(other) + if c is NotImplemented: + return c + return c > 0 + + def __ge__(self, other): + c = self._cmp(other) + if c is NotImplemented: + return c + return c >= 0 + + +# Interface for version-number classes -- must be implemented +# by the following classes (the concrete ones -- Version should +# be treated as an abstract class). +# __init__ (string) - create and take same action as 'parse' +# (string parameter is optional) +# parse (string) - convert a string representation to whatever +# internal representation is appropriate for +# this style of version numbering +# __str__ (self) - convert back to a string; should be very similar +# (if not identical to) the string supplied to parse +# __repr__ (self) - generate Python code to recreate +# the instance +# _cmp (self, other) - compare two version numbers ('other' may +# be an unparsed version string, or another +# instance of your version class) + + +class StrictVersion(Version): + """Version numbering for anal retentives and software idealists. + Implements the standard interface for version number classes as + described above. A version number consists of two or three + dot-separated numeric components, with an optional "pre-release" tag + on the end. The pre-release tag consists of the letter 'a' or 'b' + followed by a number. If the numeric components of two version + numbers are equal, then one with a pre-release tag will always + be deemed earlier (lesser) than one without. + + The following are valid version numbers (shown in the order that + would be obtained by sorting according to the supplied cmp function): + + 0.4 0.4.0 (these two are equivalent) + 0.4.1 + 0.5a1 + 0.5b3 + 0.5 + 0.9.6 + 1.0 + 1.0.4a3 + 1.0.4b1 + 1.0.4 + + The following are examples of invalid version numbers: + + 1 + 2.7.2.2 + 1.3.a4 + 1.3pl1 + 1.3c4 + + The rationale for this version numbering system will be explained + in the distutils documentation. + """ + + version_re = re.compile( + r'^(\d+) \. (\d+) (\. (\d+))? ([ab](\d+))?$', re.VERBOSE | re.ASCII + ) + + def parse(self, vstring): + match = self.version_re.match(vstring) + if not match: + raise ValueError(f"invalid version number '{vstring}'") + + (major, minor, patch, prerelease, prerelease_num) = match.group(1, 2, 4, 5, 6) + + if patch: + self.version = tuple(map(int, [major, minor, patch])) + else: + self.version = tuple(map(int, [major, minor])) + (0,) + + if prerelease: + self.prerelease = (prerelease[0], int(prerelease_num)) + else: + self.prerelease = None + + def __str__(self): + if self.version[2] == 0: + vstring = '.'.join(map(str, self.version[0:2])) + else: + vstring = '.'.join(map(str, self.version)) + + if self.prerelease: + vstring = vstring + self.prerelease[0] + str(self.prerelease[1]) + + return vstring + + def _cmp(self, other): + if isinstance(other, str): + with suppress_known_deprecation(): + other = StrictVersion(other) + elif not isinstance(other, StrictVersion): + return NotImplemented + + if self.version == other.version: + # versions match; pre-release drives the comparison + return self._cmp_prerelease(other) + + return -1 if self.version < other.version else 1 + + def _cmp_prerelease(self, other): + """ + case 1: self has prerelease, other doesn't; other is greater + case 2: self doesn't have prerelease, other does: self is greater + case 3: both or neither have prerelease: compare them! + """ + if self.prerelease and not other.prerelease: + return -1 + elif not self.prerelease and other.prerelease: + return 1 + + if self.prerelease == other.prerelease: + return 0 + elif self.prerelease < other.prerelease: + return -1 + else: + return 1 + + +# end class StrictVersion + + +# The rules according to Greg Stein: +# 1) a version number has 1 or more numbers separated by a period or by +# sequences of letters. If only periods, then these are compared +# left-to-right to determine an ordering. +# 2) sequences of letters are part of the tuple for comparison and are +# compared lexicographically +# 3) recognize the numeric components may have leading zeroes +# +# The LooseVersion class below implements these rules: a version number +# string is split up into a tuple of integer and string components, and +# comparison is a simple tuple comparison. This means that version +# numbers behave in a predictable and obvious way, but a way that might +# not necessarily be how people *want* version numbers to behave. There +# wouldn't be a problem if people could stick to purely numeric version +# numbers: just split on period and compare the numbers as tuples. +# However, people insist on putting letters into their version numbers; +# the most common purpose seems to be: +# - indicating a "pre-release" version +# ('alpha', 'beta', 'a', 'b', 'pre', 'p') +# - indicating a post-release patch ('p', 'pl', 'patch') +# but of course this can't cover all version number schemes, and there's +# no way to know what a programmer means without asking him. +# +# The problem is what to do with letters (and other non-numeric +# characters) in a version number. The current implementation does the +# obvious and predictable thing: keep them as strings and compare +# lexically within a tuple comparison. This has the desired effect if +# an appended letter sequence implies something "post-release": +# eg. "0.99" < "0.99pl14" < "1.0", and "5.001" < "5.001m" < "5.002". +# +# However, if letters in a version number imply a pre-release version, +# the "obvious" thing isn't correct. Eg. you would expect that +# "1.5.1" < "1.5.2a2" < "1.5.2", but under the tuple/lexical comparison +# implemented here, this just isn't so. +# +# Two possible solutions come to mind. The first is to tie the +# comparison algorithm to a particular set of semantic rules, as has +# been done in the StrictVersion class above. This works great as long +# as everyone can go along with bondage and discipline. Hopefully a +# (large) subset of Python module programmers will agree that the +# particular flavour of bondage and discipline provided by StrictVersion +# provides enough benefit to be worth using, and will submit their +# version numbering scheme to its domination. The free-thinking +# anarchists in the lot will never give in, though, and something needs +# to be done to accommodate them. +# +# Perhaps a "moderately strict" version class could be implemented that +# lets almost anything slide (syntactically), and makes some heuristic +# assumptions about non-digits in version number strings. This could +# sink into special-case-hell, though; if I was as talented and +# idiosyncratic as Larry Wall, I'd go ahead and implement a class that +# somehow knows that "1.2.1" < "1.2.2a2" < "1.2.2" < "1.2.2pl3", and is +# just as happy dealing with things like "2g6" and "1.13++". I don't +# think I'm smart enough to do it right though. +# +# In any case, I've coded the test suite for this module (see +# ../test/test_version.py) specifically to fail on things like comparing +# "1.2a2" and "1.2". That's not because the *code* is doing anything +# wrong, it's because the simple, obvious design doesn't match my +# complicated, hairy expectations for real-world version numbers. It +# would be a snap to fix the test suite to say, "Yep, LooseVersion does +# the Right Thing" (ie. the code matches the conception). But I'd rather +# have a conception that matches common notions about version numbers. + + +class LooseVersion(Version): + """Version numbering for anarchists and software realists. + Implements the standard interface for version number classes as + described above. A version number consists of a series of numbers, + separated by either periods or strings of letters. When comparing + version numbers, the numeric components will be compared + numerically, and the alphabetic components lexically. The following + are all valid version numbers, in no particular order: + + 1.5.1 + 1.5.2b2 + 161 + 3.10a + 8.02 + 3.4j + 1996.07.12 + 3.2.pl0 + 3.1.1.6 + 2g6 + 11g + 0.960923 + 2.2beta29 + 1.13++ + 5.5.kw + 2.0b1pl0 + + In fact, there is no such thing as an invalid version number under + this scheme; the rules for comparison are simple and predictable, + but may not always give the results you want (for some definition + of "want"). + """ + + component_re = re.compile(r'(\d+ | [a-z]+ | \.)', re.VERBOSE) + + def parse(self, vstring): + # I've given up on thinking I can reconstruct the version string + # from the parsed tuple -- so I just store the string here for + # use by __str__ + self.vstring = vstring + components = [x for x in self.component_re.split(vstring) if x and x != '.'] + for i, obj in enumerate(components): + try: + components[i] = int(obj) + except ValueError: + pass + + self.version = components + + def __str__(self): + return self.vstring + + def __repr__(self): + return f"LooseVersion ('{self}')" + + def _cmp(self, other): + if isinstance(other, str): + other = LooseVersion(other) + elif not isinstance(other, LooseVersion): + return NotImplemented + + if self.version == other.version: + return 0 + if self.version < other.version: + return -1 + if self.version > other.version: + return 1 + + +# end class LooseVersion diff --git a/setuptools/_distutils/versionpredicate.py b/setuptools/_distutils/versionpredicate.py new file mode 100644 index 0000000000..fe31b0ed8e --- /dev/null +++ b/setuptools/_distutils/versionpredicate.py @@ -0,0 +1,175 @@ +"""Module for parsing and testing package version predicate strings.""" + +import operator +import re + +from . import version + +re_validPackage = re.compile(r"(?i)^\s*([a-z_]\w*(?:\.[a-z_]\w*)*)(.*)", re.ASCII) +# (package) (rest) + +re_paren = re.compile(r"^\s*\((.*)\)\s*$") # (list) inside of parentheses +re_splitComparison = re.compile(r"^\s*(<=|>=|<|>|!=|==)\s*([^\s,]+)\s*$") +# (comp) (version) + + +def splitUp(pred): + """Parse a single version comparison. + + Return (comparison string, StrictVersion) + """ + res = re_splitComparison.match(pred) + if not res: + raise ValueError(f"bad package restriction syntax: {pred!r}") + comp, verStr = res.groups() + with version.suppress_known_deprecation(): + other = version.StrictVersion(verStr) + return (comp, other) + + +compmap = { + "<": operator.lt, + "<=": operator.le, + "==": operator.eq, + ">": operator.gt, + ">=": operator.ge, + "!=": operator.ne, +} + + +class VersionPredicate: + """Parse and test package version predicates. + + >>> v = VersionPredicate('pyepat.abc (>1.0, <3333.3a1, !=1555.1b3)') + + The `name` attribute provides the full dotted name that is given:: + + >>> v.name + 'pyepat.abc' + + The str() of a `VersionPredicate` provides a normalized + human-readable version of the expression:: + + >>> print(v) + pyepat.abc (> 1.0, < 3333.3a1, != 1555.1b3) + + The `satisfied_by()` method can be used to determine with a given + version number is included in the set described by the version + restrictions:: + + >>> v.satisfied_by('1.1') + True + >>> v.satisfied_by('1.4') + True + >>> v.satisfied_by('1.0') + False + >>> v.satisfied_by('4444.4') + False + >>> v.satisfied_by('1555.1b3') + False + + `VersionPredicate` is flexible in accepting extra whitespace:: + + >>> v = VersionPredicate(' pat( == 0.1 ) ') + >>> v.name + 'pat' + >>> v.satisfied_by('0.1') + True + >>> v.satisfied_by('0.2') + False + + If any version numbers passed in do not conform to the + restrictions of `StrictVersion`, a `ValueError` is raised:: + + >>> v = VersionPredicate('p1.p2.p3.p4(>=1.0, <=1.3a1, !=1.2zb3)') + Traceback (most recent call last): + ... + ValueError: invalid version number '1.2zb3' + + It the module or package name given does not conform to what's + allowed as a legal module or package name, `ValueError` is + raised:: + + >>> v = VersionPredicate('foo-bar') + Traceback (most recent call last): + ... + ValueError: expected parenthesized list: '-bar' + + >>> v = VersionPredicate('foo bar (12.21)') + Traceback (most recent call last): + ... + ValueError: expected parenthesized list: 'bar (12.21)' + + """ + + def __init__(self, versionPredicateStr): + """Parse a version predicate string.""" + # Fields: + # name: package name + # pred: list of (comparison string, StrictVersion) + + versionPredicateStr = versionPredicateStr.strip() + if not versionPredicateStr: + raise ValueError("empty package restriction") + match = re_validPackage.match(versionPredicateStr) + if not match: + raise ValueError(f"bad package name in {versionPredicateStr!r}") + self.name, paren = match.groups() + paren = paren.strip() + if paren: + match = re_paren.match(paren) + if not match: + raise ValueError(f"expected parenthesized list: {paren!r}") + str = match.groups()[0] + self.pred = [splitUp(aPred) for aPred in str.split(",")] + if not self.pred: + raise ValueError(f"empty parenthesized list in {versionPredicateStr!r}") + else: + self.pred = [] + + def __str__(self): + if self.pred: + seq = [cond + " " + str(ver) for cond, ver in self.pred] + return self.name + " (" + ", ".join(seq) + ")" + else: + return self.name + + def satisfied_by(self, version): + """True if version is compatible with all the predicates in self. + The parameter version must be acceptable to the StrictVersion + constructor. It may be either a string or StrictVersion. + """ + for cond, ver in self.pred: + if not compmap[cond](version, ver): + return False + return True + + +_provision_rx = None + + +def split_provision(value): + """Return the name and optional version number of a provision. + + The version number, if given, will be returned as a `StrictVersion` + instance, otherwise it will be `None`. + + >>> split_provision('mypkg') + ('mypkg', None) + >>> split_provision(' mypkg( 1.2 ) ') + ('mypkg', StrictVersion ('1.2')) + """ + global _provision_rx + if _provision_rx is None: + _provision_rx = re.compile( + r"([a-zA-Z_]\w*(?:\.[a-zA-Z_]\w*)*)(?:\s*\(\s*([^)\s]+)\s*\))?$", re.ASCII + ) + value = value.strip() + m = _provision_rx.match(value) + if not m: + raise ValueError(f"illegal provides specification: {value!r}") + ver = m.group(2) or None + if ver: + with version.suppress_known_deprecation(): + ver = version.StrictVersion(ver) + return m.group(1), ver diff --git a/setuptools/_distutils/zosccompiler.py b/setuptools/_distutils/zosccompiler.py new file mode 100644 index 0000000000..e49630ac6e --- /dev/null +++ b/setuptools/_distutils/zosccompiler.py @@ -0,0 +1,3 @@ +from .compilers.C import zos + +zOSCCompiler = zos.Compiler diff --git a/setuptools/_entry_points.py b/setuptools/_entry_points.py new file mode 100644 index 0000000000..cd5dd2c8ac --- /dev/null +++ b/setuptools/_entry_points.py @@ -0,0 +1,94 @@ +import functools +import itertools +import operator + +from jaraco.functools import pass_none +from jaraco.text import yield_lines +from more_itertools import consume + +from ._importlib import metadata +from ._itertools import ensure_unique +from .errors import OptionError + + +def ensure_valid(ep): + """ + Exercise one of the dynamic properties to trigger + the pattern match. + + This function is deprecated in favor of importlib_metadata 8.7 and + Python 3.14 importlib.metadata, which validates entry points on + construction. + """ + try: + ep.extras + except (AttributeError, AssertionError) as ex: + # Why both? See https://github.com/python/importlib_metadata/issues/488 + msg = ( + f"Problems to parse {ep}.\nPlease ensure entry-point follows the spec: " + "https://packaging.python.org/en/latest/specifications/entry-points/" + ) + raise OptionError(msg) from ex + + +def load_group(value, group): + """ + Given a value of an entry point or series of entry points, + return each as an EntryPoint. + """ + # normalize to a single sequence of lines + lines = yield_lines(value) + text = f'[{group}]\n' + '\n'.join(lines) + return metadata.EntryPoints._from_text(text) + + +def by_group_and_name(ep): + return ep.group, ep.name + + +def validate(eps: metadata.EntryPoints): + """ + Ensure entry points are unique by group and name and validate each. + """ + consume(map(ensure_valid, ensure_unique(eps, key=by_group_and_name))) + return eps + + +@functools.singledispatch +def load(eps): + """ + Given a Distribution.entry_points, produce EntryPoints. + """ + groups = itertools.chain.from_iterable( + load_group(value, group) for group, value in eps.items() + ) + return validate(metadata.EntryPoints(groups)) + + +@load.register(str) +def _(eps): + r""" + >>> ep, = load('[console_scripts]\nfoo=bar') + >>> ep.group + 'console_scripts' + >>> ep.name + 'foo' + >>> ep.value + 'bar' + """ + return validate(metadata.EntryPoints(metadata.EntryPoints._from_text(eps))) + + +load.register(type(None), lambda x: x) + + +@pass_none +def render(eps: metadata.EntryPoints): + by_group = operator.attrgetter('group') + groups = itertools.groupby(sorted(eps, key=by_group), by_group) + + return '\n'.join(f'[{group}]\n{render_items(items)}\n' for group, items in groups) + + +def render_items(eps): + return '\n'.join(f'{ep.name} = {ep.value}' for ep in sorted(eps)) diff --git a/setuptools/_imp.py b/setuptools/_imp.py new file mode 100644 index 0000000000..f1d9f29218 --- /dev/null +++ b/setuptools/_imp.py @@ -0,0 +1,87 @@ +""" +Re-implementation of find_module and get_frozen_object +from the deprecated imp module. +""" + +import importlib.machinery +import importlib.util +import os +import tokenize +from importlib.util import module_from_spec + +PY_SOURCE = 1 +PY_COMPILED = 2 +C_EXTENSION = 3 +C_BUILTIN = 6 +PY_FROZEN = 7 + + +def find_spec(module, paths): + finder = ( + importlib.machinery.PathFinder().find_spec + if isinstance(paths, list) + else importlib.util.find_spec + ) + return finder(module, paths) + + +def find_module(module, paths=None): + """Just like 'imp.find_module()', but with package support""" + spec = find_spec(module, paths) + if spec is None: + raise ImportError(f"Can't find {module}") + if not spec.has_location and hasattr(spec, 'submodule_search_locations'): + spec = importlib.util.spec_from_loader('__init__.py', spec.loader) + + kind = -1 + file = None + static = isinstance(spec.loader, type) + if ( + spec.origin == 'frozen' + or static + and issubclass(spec.loader, importlib.machinery.FrozenImporter) + ): + kind = PY_FROZEN + path = None # imp compabilty + suffix = mode = '' # imp compatibility + elif ( + spec.origin == 'built-in' + or static + and issubclass(spec.loader, importlib.machinery.BuiltinImporter) + ): + kind = C_BUILTIN + path = None # imp compabilty + suffix = mode = '' # imp compatibility + elif spec.has_location: + path = spec.origin + suffix = os.path.splitext(path)[1] + mode = 'r' if suffix in importlib.machinery.SOURCE_SUFFIXES else 'rb' + + if suffix in importlib.machinery.SOURCE_SUFFIXES: + kind = PY_SOURCE + file = tokenize.open(path) + elif suffix in importlib.machinery.BYTECODE_SUFFIXES: + kind = PY_COMPILED + file = open(path, 'rb') + elif suffix in importlib.machinery.EXTENSION_SUFFIXES: + kind = C_EXTENSION + + else: + path = None + suffix = mode = '' + + return file, path, (suffix, mode, kind) + + +def get_frozen_object(module, paths=None): + spec = find_spec(module, paths) + if not spec: + raise ImportError(f"Can't find {module}") + return spec.loader.get_code(module) + + +def get_module(module, paths, info): + spec = find_spec(module, paths) + if not spec: + raise ImportError(f"Can't find {module}") + return module_from_spec(spec) diff --git a/setuptools/_importlib.py b/setuptools/_importlib.py new file mode 100644 index 0000000000..ce0fd52653 --- /dev/null +++ b/setuptools/_importlib.py @@ -0,0 +1,9 @@ +import sys + +if sys.version_info < (3, 10): + import importlib_metadata as metadata # pragma: no cover +else: + import importlib.metadata as metadata # noqa: F401 + + +import importlib.resources as resources # noqa: F401 diff --git a/setuptools/_itertools.py b/setuptools/_itertools.py new file mode 100644 index 0000000000..d6ca841353 --- /dev/null +++ b/setuptools/_itertools.py @@ -0,0 +1,23 @@ +from more_itertools import consume # noqa: F401 + + +# copied from jaraco.itertools 6.1 +def ensure_unique(iterable, key=lambda x: x): + """ + Wrap an iterable to raise a ValueError if non-unique values are encountered. + + >>> list(ensure_unique('abc')) + ['a', 'b', 'c'] + >>> consume(ensure_unique('abca')) + Traceback (most recent call last): + ... + ValueError: Duplicate element 'a' encountered. + """ + seen = set() + seen_add = seen.add + for element in iterable: + k = key(element) + if k in seen: + raise ValueError(f"Duplicate element {element!r} encountered.") + seen_add(k) + yield element diff --git a/setuptools/_normalization.py b/setuptools/_normalization.py new file mode 100644 index 0000000000..0937a4faf8 --- /dev/null +++ b/setuptools/_normalization.py @@ -0,0 +1,179 @@ +""" +Helpers for normalization as expected in wheel/sdist/module file names +and core metadata +""" + +import re +from typing import TYPE_CHECKING + +import packaging + +# https://packaging.python.org/en/latest/specifications/core-metadata/#name +_VALID_NAME = re.compile(r"^([A-Z0-9]|[A-Z0-9][A-Z0-9._-]*[A-Z0-9])$", re.I) +_UNSAFE_NAME_CHARS = re.compile(r"[^A-Z0-9._-]+", re.I) +_NON_ALPHANUMERIC = re.compile(r"[^A-Z0-9]+", re.I) +_PEP440_FALLBACK = re.compile(r"^v?(?P(?:[0-9]+!)?[0-9]+(?:\.[0-9]+)*)", re.I) + + +def safe_identifier(name: str) -> str: + """Make a string safe to be used as Python identifier. + >>> safe_identifier("12abc") + '_12abc' + >>> safe_identifier("__editable__.myns.pkg-78.9.3_local") + '__editable___myns_pkg_78_9_3_local' + """ + safe = re.sub(r'\W|^(?=\d)', '_', name) + assert safe.isidentifier() + return safe + + +def safe_name(component: str) -> str: + """Escape a component used as a project name according to Core Metadata. + >>> safe_name("hello world") + 'hello-world' + >>> safe_name("hello?world") + 'hello-world' + >>> safe_name("hello_world") + 'hello_world' + """ + # See pkg_resources.safe_name + return _UNSAFE_NAME_CHARS.sub("-", component) + + +def safe_version(version: str) -> str: + """Convert an arbitrary string into a valid version string. + Can still raise an ``InvalidVersion`` exception. + To avoid exceptions use ``best_effort_version``. + >>> safe_version("1988 12 25") + '1988.12.25' + >>> safe_version("v0.2.1") + '0.2.1' + >>> safe_version("v0.2?beta") + '0.2b0' + >>> safe_version("v0.2 beta") + '0.2b0' + >>> safe_version("ubuntu lts") + Traceback (most recent call last): + ... + packaging.version.InvalidVersion: Invalid version: 'ubuntu.lts' + """ + v = version.replace(' ', '.') + try: + return str(packaging.version.Version(v)) + except packaging.version.InvalidVersion: + attempt = _UNSAFE_NAME_CHARS.sub("-", v) + return str(packaging.version.Version(attempt)) + + +def best_effort_version(version: str) -> str: + """Convert an arbitrary string into a version-like string. + Fallback when ``safe_version`` is not safe enough. + >>> best_effort_version("v0.2 beta") + '0.2b0' + >>> best_effort_version("ubuntu lts") + '0.dev0+sanitized.ubuntu.lts' + >>> best_effort_version("0.23ubuntu1") + '0.23.dev0+sanitized.ubuntu1' + >>> best_effort_version("0.23-") + '0.23.dev0+sanitized' + >>> best_effort_version("0.-_") + '0.dev0+sanitized' + >>> best_effort_version("42.+?1") + '42.dev0+sanitized.1' + """ + # See pkg_resources._forgiving_version + try: + return safe_version(version) + except packaging.version.InvalidVersion: + v = version.replace(' ', '.') + match = _PEP440_FALLBACK.search(v) + if match: + safe = match["safe"] + rest = v[len(safe) :] + else: + safe = "0" + rest = version + safe_rest = _NON_ALPHANUMERIC.sub(".", rest).strip(".") + local = f"sanitized.{safe_rest}".strip(".") + return safe_version(f"{safe}.dev0+{local}") + + +def safe_extra(extra: str) -> str: + """Normalize extra name according to PEP 685 + >>> safe_extra("_FrIeNdLy-._.-bArD") + 'friendly-bard' + >>> safe_extra("FrIeNdLy-._.-bArD__._-") + 'friendly-bard' + """ + return _NON_ALPHANUMERIC.sub("-", extra).strip("-").lower() + + +def filename_component(value: str) -> str: + """Normalize each component of a filename (e.g. distribution/version part of wheel) + Note: ``value`` needs to be already normalized. + >>> filename_component("my-pkg") + 'my_pkg' + """ + return value.replace("-", "_").strip("_") + + +def filename_component_broken(value: str) -> str: + """ + Produce the incorrect filename component for compatibility. + + See pypa/setuptools#4167 for detailed analysis. + + TODO: replace this with filename_component after pip 24 is + nearly-ubiquitous. + + >>> filename_component_broken('foo_bar-baz') + 'foo-bar-baz' + """ + return value.replace('_', '-') + + +def safer_name(value: str) -> str: + """Like ``safe_name`` but can be used as filename component for wheel""" + # See bdist_wheel.safer_name + return ( + # Per https://packaging.python.org/en/latest/specifications/name-normalization/#name-normalization + re.sub(r"[-_.]+", "-", safe_name(value)) + .lower() + # Per https://packaging.python.org/en/latest/specifications/binary-distribution-format/#escaping-and-unicode + .replace("-", "_") + ) + + +def safer_best_effort_version(value: str) -> str: + """Like ``best_effort_version`` but can be used as filename component for wheel""" + # See bdist_wheel.safer_verion + # TODO: Replace with only safe_version in the future (no need for best effort) + return filename_component(best_effort_version(value)) + + +def _missing_canonicalize_license_expression(expression: str) -> str: + """ + Defer import error to affect only users that actually use it + https://github.com/pypa/setuptools/issues/4894 + >>> _missing_canonicalize_license_expression("a OR b") + Traceback (most recent call last): + ... + ImportError: ...Cannot import `packaging.licenses`... + """ + raise ImportError( + "Cannot import `packaging.licenses`." + """ + Setuptools>=77.0.0 requires "packaging>=24.2" to work properly. + Please make sure you have a suitable version installed. + """ + ) + + +try: + from packaging.licenses import ( + canonicalize_license_expression as _canonicalize_license_expression, + ) +except ImportError: # pragma: nocover + if not TYPE_CHECKING: + # XXX: pyright is still upset even with # pyright: ignore[reportAssignmentType] + _canonicalize_license_expression = _missing_canonicalize_license_expression diff --git a/setuptools/_path.py b/setuptools/_path.py new file mode 100644 index 0000000000..0d99b0f539 --- /dev/null +++ b/setuptools/_path.py @@ -0,0 +1,84 @@ +from __future__ import annotations + +import contextlib +import os +import sys +from typing import TYPE_CHECKING, TypeVar, Union + +from more_itertools import unique_everseen + +if TYPE_CHECKING: + from typing_extensions import TypeAlias + +StrPath: TypeAlias = Union[str, os.PathLike[str]] # Same as _typeshed.StrPath +StrPathT = TypeVar("StrPathT", bound=Union[str, os.PathLike[str]]) + + +def ensure_directory(path): + """Ensure that the parent directory of `path` exists""" + dirname = os.path.dirname(path) + os.makedirs(dirname, exist_ok=True) + + +def same_path(p1: StrPath, p2: StrPath) -> bool: + """Differs from os.path.samefile because it does not require paths to exist. + Purely string based (no comparison between i-nodes). + >>> same_path("a/b", "./a/b") + True + >>> same_path("a/b", "a/./b") + True + >>> same_path("a/b", "././a/b") + True + >>> same_path("a/b", "./a/b/c/..") + True + >>> same_path("a/b", "../a/b/c") + False + >>> same_path("a", "a/b") + False + """ + return normpath(p1) == normpath(p2) + + +def normpath(filename: StrPath) -> str: + """Normalize a file/dir name for comparison purposes.""" + # See pkg_resources.normalize_path for notes about cygwin + file = os.path.abspath(filename) if sys.platform == 'cygwin' else filename + return os.path.normcase(os.path.realpath(os.path.normpath(file))) + + +@contextlib.contextmanager +def paths_on_pythonpath(paths): + """ + Add the indicated paths to the head of the PYTHONPATH environment + variable so that subprocesses will also see the packages at + these paths. + + Do this in a context that restores the value on exit. + + >>> getfixture('monkeypatch').setenv('PYTHONPATH', 'anything') + >>> with paths_on_pythonpath(['foo', 'bar']): + ... assert 'foo' in os.environ['PYTHONPATH'] + ... assert 'anything' in os.environ['PYTHONPATH'] + >>> os.environ['PYTHONPATH'] + 'anything' + + >>> getfixture('monkeypatch').delenv('PYTHONPATH') + >>> with paths_on_pythonpath(['foo', 'bar']): + ... assert 'foo' in os.environ['PYTHONPATH'] + >>> os.environ.get('PYTHONPATH') + """ + nothing = object() + orig_pythonpath = os.environ.get('PYTHONPATH', nothing) + current_pythonpath = os.environ.get('PYTHONPATH', '') + try: + prefix = os.pathsep.join(unique_everseen(paths)) + to_join = filter(None, [prefix, current_pythonpath]) + new_path = os.pathsep.join(to_join) + if new_path: + os.environ['PYTHONPATH'] = new_path + yield + finally: + if orig_pythonpath is nothing: + os.environ.pop('PYTHONPATH', None) + else: + os.environ['PYTHONPATH'] = orig_pythonpath diff --git a/setuptools/_reqs.py b/setuptools/_reqs.py new file mode 100644 index 0000000000..c793be4d6e --- /dev/null +++ b/setuptools/_reqs.py @@ -0,0 +1,42 @@ +from __future__ import annotations + +from collections.abc import Iterable, Iterator +from functools import lru_cache +from typing import TYPE_CHECKING, Callable, TypeVar, Union, overload + +import jaraco.text as text +from packaging.requirements import Requirement + +if TYPE_CHECKING: + from typing_extensions import TypeAlias + +_T = TypeVar("_T") +_StrOrIter: TypeAlias = Union[str, Iterable[str]] + + +parse_req: Callable[[str], Requirement] = lru_cache()(Requirement) +# Setuptools parses the same requirement many times +# (e.g. first for validation than for normalisation), +# so it might be worth to cache. + + +def parse_strings(strs: _StrOrIter) -> Iterator[str]: + """ + Yield requirement strings for each specification in `strs`. + + `strs` must be a string, or a (possibly-nested) iterable thereof. + """ + return text.join_continuation(map(text.drop_comment, text.yield_lines(strs))) + + +# These overloads are only needed because of a mypy false-positive, pyright gets it right +# https://github.com/python/mypy/issues/3737 +@overload +def parse(strs: _StrOrIter) -> Iterator[Requirement]: ... +@overload +def parse(strs: _StrOrIter, parser: Callable[[str], _T]) -> Iterator[_T]: ... +def parse(strs: _StrOrIter, parser: Callable[[str], _T] = parse_req) -> Iterator[_T]: # type: ignore[assignment] + """ + Replacement for ``pkg_resources.parse_requirements`` that uses ``packaging``. + """ + return map(parser, parse_strings(strs)) diff --git a/setuptools/_shutil.py b/setuptools/_shutil.py new file mode 100644 index 0000000000..6acbb4281f --- /dev/null +++ b/setuptools/_shutil.py @@ -0,0 +1,53 @@ +"""Convenience layer on top of stdlib's shutil and os""" + +import os +import stat +from typing import Callable, TypeVar + +from .compat import py311 + +from distutils import log + +try: + from os import chmod # pyright: ignore[reportAssignmentType] + # Losing type-safety w/ pyright, but that's ok +except ImportError: # pragma: no cover + # Jython compatibility + def chmod(*args: object, **kwargs: object) -> None: # type: ignore[misc] # Mypy reuses the imported definition anyway + pass + + +_T = TypeVar("_T") + + +def attempt_chmod_verbose(path, mode): + log.debug("changing mode of %s to %o", path, mode) + try: + chmod(path, mode) + except OSError as e: # pragma: no cover + log.debug("chmod failed: %s", e) + + +# Must match shutil._OnExcCallback +def _auto_chmod( + func: Callable[..., _T], arg: str, exc: BaseException +) -> _T: # pragma: no cover + """shutils onexc callback to automatically call chmod for certain functions.""" + # Only retry for scenarios known to have an issue + if func in [os.unlink, os.remove] and os.name == 'nt': + attempt_chmod_verbose(arg, stat.S_IWRITE) + return func(arg) + raise exc + + +def rmtree(path, ignore_errors=False, onexc=_auto_chmod): + """ + Similar to ``shutil.rmtree`` but automatically executes ``chmod`` + for well know Windows failure scenarios. + """ + return py311.shutil_rmtree(path, ignore_errors, onexc) + + +def rmdir(path, **opts): + if os.path.isdir(path): + rmtree(path, **opts) diff --git a/setuptools/_static.py b/setuptools/_static.py new file mode 100644 index 0000000000..af35862cf8 --- /dev/null +++ b/setuptools/_static.py @@ -0,0 +1,188 @@ +from functools import wraps +from typing import TypeVar + +import packaging.specifiers + +from .warnings import SetuptoolsDeprecationWarning + + +class Static: + """ + Wrapper for built-in object types that are allow setuptools to identify + static core metadata (in opposition to ``Dynamic``, as defined :pep:`643`). + + The trick is to mark values with :class:`Static` when they come from + ``pyproject.toml`` or ``setup.cfg``, so if any plugin overwrite the value + with a built-in, setuptools will be able to recognise the change. + + We inherit from built-in classes, so that we don't need to change the existing + code base to deal with the new types. + We also should strive for immutability objects to avoid changes after the + initial parsing. + """ + + _mutated_: bool = False # TODO: Remove after deprecation warning is solved + + +def _prevent_modification(target: type, method: str, copying: str) -> None: + """ + Because setuptools is very flexible we cannot fully prevent + plugins and user customizations from modifying static values that were + parsed from config files. + But we can attempt to block "in-place" mutations and identify when they + were done. + """ + fn = getattr(target, method, None) + if fn is None: + return + + @wraps(fn) + def _replacement(self: Static, *args, **kwargs): + # TODO: After deprecation period raise NotImplementedError instead of warning + # which obviated the existence and checks of the `_mutated_` attribute. + self._mutated_ = True + SetuptoolsDeprecationWarning.emit( + "Direct modification of value will be disallowed", + f""" + In an effort to implement PEP 643, direct/in-place changes of static values + that come from configuration files are deprecated. + If you need to modify this value, please first create a copy with {copying} + and make sure conform to all relevant standards when overriding setuptools + functionality (https://packaging.python.org/en/latest/specifications/). + """, + due_date=(2025, 10, 10), # Initially introduced in 2024-09-06 + ) + return fn(self, *args, **kwargs) + + _replacement.__doc__ = "" # otherwise doctest may fail. + setattr(target, method, _replacement) + + +class Str(str, Static): + pass + + +class Tuple(tuple, Static): + pass + + +class List(list, Static): + """ + :meta private: + >>> x = List([1, 2, 3]) + >>> is_static(x) + True + >>> x += [0] # doctest: +IGNORE_EXCEPTION_DETAIL + Traceback (most recent call last): + SetuptoolsDeprecationWarning: Direct modification ... + >>> is_static(x) # no longer static after modification + False + >>> y = list(x) + >>> y.clear() + >>> y + [] + >>> y == x + False + >>> is_static(List(y)) + True + """ + + +# Make `List` immutable-ish +# (certain places of setuptools/distutils issue a warn if we use tuple instead of list) +for _method in ( + '__delitem__', + '__iadd__', + '__setitem__', + 'append', + 'clear', + 'extend', + 'insert', + 'remove', + 'reverse', + 'pop', +): + _prevent_modification(List, _method, "`list(value)`") + + +class Dict(dict, Static): + """ + :meta private: + >>> x = Dict({'a': 1, 'b': 2}) + >>> is_static(x) + True + >>> x['c'] = 0 # doctest: +IGNORE_EXCEPTION_DETAIL + Traceback (most recent call last): + SetuptoolsDeprecationWarning: Direct modification ... + >>> x._mutated_ + True + >>> is_static(x) # no longer static after modification + False + >>> y = dict(x) + >>> y.popitem() + ('b', 2) + >>> y == x + False + >>> is_static(Dict(y)) + True + """ + + +# Make `Dict` immutable-ish (we cannot inherit from types.MappingProxyType): +for _method in ( + '__delitem__', + '__ior__', + '__setitem__', + 'clear', + 'pop', + 'popitem', + 'setdefault', + 'update', +): + _prevent_modification(Dict, _method, "`dict(value)`") + + +class SpecifierSet(packaging.specifiers.SpecifierSet, Static): + """Not exactly a built-in type but useful for ``requires-python``""" + + +T = TypeVar("T") + + +def noop(value: T) -> T: + """ + >>> noop(42) + 42 + """ + return value + + +_CONVERSIONS = {str: Str, tuple: Tuple, list: List, dict: Dict} + + +def attempt_conversion(value: T) -> T: + """ + >>> is_static(attempt_conversion("hello")) + True + >>> is_static(object()) + False + """ + return _CONVERSIONS.get(type(value), noop)(value) # type: ignore[call-overload] + + +def is_static(value: object) -> bool: + """ + >>> is_static(a := Dict({'a': 1})) + True + >>> is_static(dict(a)) + False + >>> is_static(b := List([1, 2, 3])) + True + >>> is_static(list(b)) + False + """ + return isinstance(value, Static) and not value._mutated_ + + +EMPTY_LIST = List() +EMPTY_DICT = Dict() diff --git a/setuptools/_vendor/autocommand-2.2.2.dist-info/INSTALLER b/setuptools/_vendor/autocommand-2.2.2.dist-info/INSTALLER new file mode 100644 index 0000000000..a1b589e38a --- /dev/null +++ b/setuptools/_vendor/autocommand-2.2.2.dist-info/INSTALLER @@ -0,0 +1 @@ +pip diff --git a/setuptools/_vendor/autocommand-2.2.2.dist-info/LICENSE b/setuptools/_vendor/autocommand-2.2.2.dist-info/LICENSE new file mode 100644 index 0000000000..b49c3af060 --- /dev/null +++ b/setuptools/_vendor/autocommand-2.2.2.dist-info/LICENSE @@ -0,0 +1,166 @@ +GNU LESSER GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + + This version of the GNU Lesser General Public License incorporates +the terms and conditions of version 3 of the GNU General Public +License, supplemented by the additional permissions listed below. + + 0. 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Combined Libraries. + + You may place library facilities that are a work based on the +Library side by side in a single library together with other library +facilities that are not Applications and are not covered by this +License, and convey such a combined library under terms of your +choice, if you do both of the following: + + a) Accompany the combined library with a copy of the same work based + on the Library, uncombined with any other library facilities, + conveyed under the terms of this License. + + b) Give prominent notice with the combined library that part of it + is a work based on the Library, and explaining where to find the + accompanying uncombined form of the same work. + + 6. Revised Versions of the GNU Lesser General Public License. + + The Free Software Foundation may publish revised and/or new versions +of the GNU Lesser General Public License from time to time. Such new +versions will be similar in spirit to the present version, but may +differ in detail to address new problems or concerns. + + Each version is given a distinguishing version number. If the +Library as you received it specifies that a certain numbered version +of the GNU Lesser General Public License "or any later version" +applies to it, you have the option of following the terms and +conditions either of that published version or of any later version +published by the Free Software Foundation. If the Library as you +received it does not specify a version number of the GNU Lesser +General Public License, you may choose any version of the GNU Lesser +General Public License ever published by the Free Software Foundation. + + If the Library as you received it specifies that a proxy can decide +whether future versions of the GNU Lesser General Public License shall +apply, that proxy's public statement of acceptance of any version is +permanent authorization for you to choose that version for the +Library. + diff --git a/setuptools/_vendor/autocommand-2.2.2.dist-info/METADATA b/setuptools/_vendor/autocommand-2.2.2.dist-info/METADATA new file mode 100644 index 0000000000..32214fb440 --- /dev/null +++ b/setuptools/_vendor/autocommand-2.2.2.dist-info/METADATA @@ -0,0 +1,420 @@ +Metadata-Version: 2.1 +Name: autocommand +Version: 2.2.2 +Summary: A library to create a command-line program from a function +Home-page: https://github.com/Lucretiel/autocommand +Author: Nathan West +License: LGPLv3 +Project-URL: Homepage, https://github.com/Lucretiel/autocommand +Project-URL: Bug Tracker, https://github.com/Lucretiel/autocommand/issues +Platform: any +Classifier: Development Status :: 6 - Mature +Classifier: Intended Audience :: Developers +Classifier: License :: OSI Approved :: GNU Lesser General Public License v3 (LGPLv3) +Classifier: Programming Language :: Python +Classifier: Programming Language :: Python :: 3 +Classifier: Programming Language :: Python :: 3 :: Only +Classifier: Topic :: Software Development +Classifier: Topic :: Software Development :: Libraries +Classifier: Topic :: Software Development :: Libraries :: Python Modules +Requires-Python: >=3.7 +Description-Content-Type: text/markdown +License-File: LICENSE + +[![PyPI version](https://badge.fury.io/py/autocommand.svg)](https://badge.fury.io/py/autocommand) + +# autocommand + +A library to automatically generate and run simple argparse parsers from function signatures. + +## Installation + +Autocommand is installed via pip: + +``` +$ pip install autocommand +``` + +## Usage + +Autocommand turns a function into a command-line program. It converts the function's parameter signature into command-line arguments, and automatically runs the function if the module was called as `__main__`. In effect, it lets your create a smart main function. + +```python +from autocommand import autocommand + +# This program takes exactly one argument and echos it. +@autocommand(__name__) +def echo(thing): + print(thing) +``` + +``` +$ python echo.py hello +hello +$ python echo.py -h +usage: echo [-h] thing + +positional arguments: + thing + +optional arguments: + -h, --help show this help message and exit +$ python echo.py hello world # too many arguments +usage: echo.py [-h] thing +echo.py: error: unrecognized arguments: world +``` + +As you can see, autocommand converts the signature of the function into an argument spec. When you run the file as a program, autocommand collects the command-line arguments and turns them into function arguments. The function is executed with these arguments, and then the program exits with the return value of the function, via `sys.exit`. Autocommand also automatically creates a usage message, which can be invoked with `-h` or `--help`, and automatically prints an error message when provided with invalid arguments. + +### Types + +You can use a type annotation to give an argument a type. Any type (or in fact any callable) that returns an object when given a string argument can be used, though there are a few special cases that are described later. + +```python +@autocommand(__name__) +def net_client(host, port: int): + ... +``` + +Autocommand will catch `TypeErrors` raised by the type during argument parsing, so you can supply a callable and do some basic argument validation as well. + +### Trailing Arguments + +You can add a `*args` parameter to your function to give it trailing arguments. The command will collect 0 or more trailing arguments and supply them to `args` as a tuple. If a type annotation is supplied, the type is applied to each argument. + +```python +# Write the contents of each file, one by one +@autocommand(__name__) +def cat(*files): + for filename in files: + with open(filename) as file: + for line in file: + print(line.rstrip()) +``` + +``` +$ python cat.py -h +usage: ipython [-h] [file [file ...]] + +positional arguments: + file + +optional arguments: + -h, --help show this help message and exit +``` + +### Options + +To create `--option` switches, just assign a default. Autocommand will automatically create `--long` and `-s`hort switches. + +```python +@autocommand(__name__) +def do_with_config(argument, config='~/foo.conf'): + pass +``` + +``` +$ python example.py -h +usage: example.py [-h] [-c CONFIG] argument + +positional arguments: + argument + +optional arguments: + -h, --help show this help message and exit + -c CONFIG, --config CONFIG +``` + +The option's type is automatically deduced from the default, unless one is explicitly given in an annotation: + +```python +@autocommand(__name__) +def http_connect(host, port=80): + print('{}:{}'.format(host, port)) +``` + +``` +$ python http.py -h +usage: http.py [-h] [-p PORT] host + +positional arguments: + host + +optional arguments: + -h, --help show this help message and exit + -p PORT, --port PORT +$ python http.py localhost +localhost:80 +$ python http.py localhost -p 8080 +localhost:8080 +$ python http.py localhost -p blah +usage: http.py [-h] [-p PORT] host +http.py: error: argument -p/--port: invalid int value: 'blah' +``` + +#### None + +If an option is given a default value of `None`, it reads in a value as normal, but supplies `None` if the option isn't provided. + +#### Switches + +If an argument is given a default value of `True` or `False`, or +given an explicit `bool` type, it becomes an option switch. + +```python + @autocommand(__name__) + def example(verbose=False, quiet=False): + pass +``` + +``` +$ python example.py -h +usage: example.py [-h] [-v] [-q] + +optional arguments: + -h, --help show this help message and exit + -v, --verbose + -q, --quiet +``` + +Autocommand attempts to do the "correct thing" in these cases- if the default is `True`, then supplying the switch makes the argument `False`; if the type is `bool` and the default is some other `True` value, then supplying the switch makes the argument `False`, while not supplying the switch makes the argument the default value. + +Autocommand also supports the creation of switch inverters. Pass `add_nos=True` to `autocommand` to enable this. + +``` + @autocommand(__name__, add_nos=True) + def example(verbose=False): + pass +``` + +``` +$ python example.py -h +usage: ipython [-h] [-v] [--no-verbose] + +optional arguments: + -h, --help show this help message and exit + -v, --verbose + --no-verbose +``` + +Using the `--no-` version of a switch will pass the opposite value in as a function argument. If multiple switches are present, the last one takes precedence. + +#### Files + +If the default value is a file object, such as `sys.stdout`, then autocommand just looks for a string, for a file path. It doesn't do any special checking on the string, though (such as checking if the file exists); it's better to let the client decide how to handle errors in this case. Instead, it provides a special context manager called `smart_open`, which behaves exactly like `open` if a filename or other openable type is provided, but also lets you use already open files: + +```python +from autocommand import autocommand, smart_open +import sys + +# Write the contents of stdin, or a file, to stdout +@autocommand(__name__) +def write_out(infile=sys.stdin): + with smart_open(infile) as f: + for line in f: + print(line.rstrip()) + # If a file was opened, it is closed here. If it was just stdin, it is untouched. +``` + +``` +$ echo "Hello World!" | python write_out.py | tee hello.txt +Hello World! +$ python write_out.py --infile hello.txt +Hello World! +``` + +### Descriptions and docstrings + +The `autocommand` decorator accepts `description` and `epilog` kwargs, corresponding to the `description `_ and `epilog `_ of the `ArgumentParser`. If no description is given, but the decorated function has a docstring, then it is taken as the `description` for the `ArgumentParser`. You can also provide both the description and epilog in the docstring by splitting it into two sections with 4 or more - characters. + +```python +@autocommand(__name__) +def copy(infile=sys.stdin, outfile=sys.stdout): + ''' + Copy an the contents of a file (or stdin) to another file (or stdout) + ---------- + Some extra documentation in the epilog + ''' + with smart_open(infile) as istr: + with smart_open(outfile, 'w') as ostr: + for line in istr: + ostr.write(line) +``` + +``` +$ python copy.py -h +usage: copy.py [-h] [-i INFILE] [-o OUTFILE] + +Copy an the contents of a file (or stdin) to another file (or stdout) + +optional arguments: + -h, --help show this help message and exit + -i INFILE, --infile INFILE + -o OUTFILE, --outfile OUTFILE + +Some extra documentation in the epilog +$ echo "Hello World" | python copy.py --outfile hello.txt +$ python copy.py --infile hello.txt --outfile hello2.txt +$ python copy.py --infile hello2.txt +Hello World +``` + +### Parameter descriptions + +You can also attach description text to individual parameters in the annotation. To attach both a type and a description, supply them both in any order in a tuple + +```python +@autocommand(__name__) +def copy_net( + infile: 'The name of the file to send', + host: 'The host to send the file to', + port: (int, 'The port to connect to')): + + ''' + Copy a file over raw TCP to a remote destination. + ''' + # Left as an exercise to the reader +``` + +### Decorators and wrappers + +Autocommand automatically follows wrapper chains created by `@functools.wraps`. This means that you can apply other wrapping decorators to your main function, and autocommand will still correctly detect the signature. + +```python +from functools import wraps +from autocommand import autocommand + +def print_yielded(func): + ''' + Convert a generator into a function that prints all yielded elements + ''' + @wraps(func) + def wrapper(*args, **kwargs): + for thing in func(*args, **kwargs): + print(thing) + return wrapper + +@autocommand(__name__, + description= 'Print all the values from START to STOP, inclusive, in steps of STEP', + epilog= 'STOP and STEP default to 1') +@print_yielded +def seq(stop, start=1, step=1): + for i in range(start, stop + 1, step): + yield i +``` + +``` +$ seq.py -h +usage: seq.py [-h] [-s START] [-S STEP] stop + +Print all the values from START to STOP, inclusive, in steps of STEP + +positional arguments: + stop + +optional arguments: + -h, --help show this help message and exit + -s START, --start START + -S STEP, --step STEP + +STOP and STEP default to 1 +``` + +Even though autocommand is being applied to the `wrapper` returned by `print_yielded`, it still retreives the signature of the underlying `seq` function to create the argument parsing. + +### Custom Parser + +While autocommand's automatic parser generator is a powerful convenience, it doesn't cover all of the different features that argparse provides. If you need these features, you can provide your own parser as a kwarg to `autocommand`: + +```python +from argparse import ArgumentParser +from autocommand import autocommand + +parser = ArgumentParser() +# autocommand can't do optional positonal parameters +parser.add_argument('arg', nargs='?') +# or mutually exclusive options +group = parser.add_mutually_exclusive_group() +group.add_argument('-v', '--verbose', action='store_true') +group.add_argument('-q', '--quiet', action='store_true') + +@autocommand(__name__, parser=parser) +def main(arg, verbose, quiet): + print(arg, verbose, quiet) +``` + +``` +$ python parser.py -h +usage: write_file.py [-h] [-v | -q] [arg] + +positional arguments: + arg + +optional arguments: + -h, --help show this help message and exit + -v, --verbose + -q, --quiet +$ python parser.py +None False False +$ python parser.py hello +hello False False +$ python parser.py -v +None True False +$ python parser.py -q +None False True +$ python parser.py -vq +usage: parser.py [-h] [-v | -q] [arg] +parser.py: error: argument -q/--quiet: not allowed with argument -v/--verbose +``` + +Any parser should work fine, so long as each of the parser's arguments has a corresponding parameter in the decorated main function. The order of parameters doesn't matter, as long as they are all present. Note that when using a custom parser, autocommand doesn't modify the parser or the retrieved arguments. This means that no description/epilog will be added, and the function's type annotations and defaults (if present) will be ignored. + +## Testing and Library use + +The decorated function is only called and exited from if the first argument to `autocommand` is `'__main__'` or `True`. If it is neither of these values, or no argument is given, then a new main function is created by the decorator. This function has the signature `main(argv=None)`, and is intended to be called with arguments as if via `main(sys.argv[1:])`. The function has the attributes `parser` and `main`, which are the generated `ArgumentParser` and the original main function that was decorated. This is to facilitate testing and library use of your main. Calling the function triggers a `parse_args()` with the supplied arguments, and returns the result of the main function. Note that, while it returns instead of calling `sys.exit`, the `parse_args()` function will raise a `SystemExit` in the event of a parsing error or `-h/--help` argument. + +```python + @autocommand() + def test_prog(arg1, arg2: int, quiet=False, verbose=False): + if not quiet: + print(arg1, arg2) + if verbose: + print("LOUD NOISES") + + return 0 + + print(test_prog(['-v', 'hello', '80'])) +``` + +``` +$ python test_prog.py +hello 80 +LOUD NOISES +0 +``` + +If the function is called with no arguments, `sys.argv[1:]` is used. This is to allow the autocommand function to be used as a setuptools entry point. + +## Exceptions and limitations + +- There are a few possible exceptions that `autocommand` can raise. All of them derive from `autocommand.AutocommandError`. + + - If an invalid annotation is given (that is, it isn't a `type`, `str`, `(type, str)`, or `(str, type)`, an `AnnotationError` is raised. The `type` may be any callable, as described in the `Types`_ section. + - If the function has a `**kwargs` parameter, a `KWargError` is raised. + - If, somehow, the function has a positional-only parameter, a `PositionalArgError` is raised. This means that the argument doesn't have a name, which is currently not possible with a plain `def` or `lambda`, though many built-in functions have this kind of parameter. + +- There are a few argparse features that are not supported by autocommand. + + - It isn't possible to have an optional positional argument (as opposed to a `--option`). POSIX thinks this is bad form anyway. + - It isn't possible to have mutually exclusive arguments or options + - It isn't possible to have subcommands or subparsers, though I'm working on a few solutions involving classes or nested function definitions to allow this. + +## Development + +Autocommand cannot be important from the project root; this is to enforce separation of concerns and prevent accidental importing of `setup.py` or tests. To develop, install the project in editable mode: + +``` +$ python setup.py develop +``` + +This will create a link to the source files in the deployment directory, so that any source changes are reflected when it is imported. diff --git a/setuptools/_vendor/autocommand-2.2.2.dist-info/RECORD b/setuptools/_vendor/autocommand-2.2.2.dist-info/RECORD new file mode 100644 index 0000000000..e6e12ea51e --- /dev/null +++ b/setuptools/_vendor/autocommand-2.2.2.dist-info/RECORD @@ -0,0 +1,18 @@ +autocommand-2.2.2.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4 +autocommand-2.2.2.dist-info/LICENSE,sha256=reeNBJgtaZctREqOFKlPh6IzTdOFXMgDSOqOJAqg3y0,7634 +autocommand-2.2.2.dist-info/METADATA,sha256=OADZuR3O6iBlpu1ieTgzYul6w4uOVrk0P0BO5TGGAJk,15006 +autocommand-2.2.2.dist-info/RECORD,, +autocommand-2.2.2.dist-info/WHEEL,sha256=2wepM1nk4DS4eFpYrW1TTqPcoGNfHhhO_i5m4cOimbo,92 +autocommand-2.2.2.dist-info/top_level.txt,sha256=AzfhgKKS8EdAwWUTSF8mgeVQbXOY9kokHB6kSqwwqu0,12 +autocommand/__init__.py,sha256=zko5Rnvolvb-UXjCx_2ArPTGBWwUK5QY4LIQIKYR7As,1037 +autocommand/__pycache__/__init__.cpython-312.pyc,, +autocommand/__pycache__/autoasync.cpython-312.pyc,, +autocommand/__pycache__/autocommand.cpython-312.pyc,, +autocommand/__pycache__/automain.cpython-312.pyc,, +autocommand/__pycache__/autoparse.cpython-312.pyc,, +autocommand/__pycache__/errors.cpython-312.pyc,, +autocommand/autoasync.py,sha256=AMdyrxNS4pqWJfP_xuoOcImOHWD-qT7x06wmKN1Vp-U,5680 +autocommand/autocommand.py,sha256=hmkEmQ72HtL55gnURVjDOnsfYlGd5lLXbvT4KG496Qw,2505 +autocommand/automain.py,sha256=A2b8i754Mxc_DjU9WFr6vqYDWlhz0cn8miu8d8EsxV8,2076 +autocommand/autoparse.py,sha256=WVWmZJPcbzUKXP40raQw_0HD8qPJ2V9VG1eFFmmnFxw,11642 +autocommand/errors.py,sha256=7aa3roh9Herd6nIKpQHNWEslWE8oq7GiHYVUuRqORnA,886 diff --git a/setuptools/_vendor/autocommand-2.2.2.dist-info/WHEEL b/setuptools/_vendor/autocommand-2.2.2.dist-info/WHEEL new file mode 100644 index 0000000000..57e3d840d5 --- /dev/null +++ b/setuptools/_vendor/autocommand-2.2.2.dist-info/WHEEL @@ -0,0 +1,5 @@ +Wheel-Version: 1.0 +Generator: bdist_wheel (0.38.4) +Root-Is-Purelib: true +Tag: py3-none-any + diff --git a/setuptools/_vendor/autocommand-2.2.2.dist-info/top_level.txt b/setuptools/_vendor/autocommand-2.2.2.dist-info/top_level.txt new file mode 100644 index 0000000000..dda5158ff6 --- /dev/null +++ b/setuptools/_vendor/autocommand-2.2.2.dist-info/top_level.txt @@ -0,0 +1 @@ +autocommand diff --git a/setuptools/_vendor/autocommand/__init__.py b/setuptools/_vendor/autocommand/__init__.py new file mode 100644 index 0000000000..73fbfca6b3 --- /dev/null +++ b/setuptools/_vendor/autocommand/__init__.py @@ -0,0 +1,27 @@ +# Copyright 2014-2016 Nathan West +# +# This file is part of autocommand. +# +# autocommand is free software: you can redistribute it and/or modify +# it under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# autocommand is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with autocommand. If not, see . + +# flake8 flags all these imports as unused, hence the NOQAs everywhere. + +from .automain import automain # NOQA +from .autoparse import autoparse, smart_open # NOQA +from .autocommand import autocommand # NOQA + +try: + from .autoasync import autoasync # NOQA +except ImportError: # pragma: no cover + pass diff --git a/setuptools/_vendor/autocommand/autoasync.py b/setuptools/_vendor/autocommand/autoasync.py new file mode 100644 index 0000000000..688f7e0554 --- /dev/null +++ b/setuptools/_vendor/autocommand/autoasync.py @@ -0,0 +1,142 @@ +# Copyright 2014-2015 Nathan West +# +# This file is part of autocommand. +# +# autocommand is free software: you can redistribute it and/or modify +# it under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# autocommand is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with autocommand. If not, see . + +from asyncio import get_event_loop, iscoroutine +from functools import wraps +from inspect import signature + + +async def _run_forever_coro(coro, args, kwargs, loop): + ''' + This helper function launches an async main function that was tagged with + forever=True. There are two possibilities: + + - The function is a normal function, which handles initializing the event + loop, which is then run forever + - The function is a coroutine, which needs to be scheduled in the event + loop, which is then run forever + - There is also the possibility that the function is a normal function + wrapping a coroutine function + + The function is therefore called unconditionally and scheduled in the event + loop if the return value is a coroutine object. + + The reason this is a separate function is to make absolutely sure that all + the objects created are garbage collected after all is said and done; we + do this to ensure that any exceptions raised in the tasks are collected + ASAP. + ''' + + # Personal note: I consider this an antipattern, as it relies on the use of + # unowned resources. The setup function dumps some stuff into the event + # loop where it just whirls in the ether without a well defined owner or + # lifetime. For this reason, there's a good chance I'll remove the + # forever=True feature from autoasync at some point in the future. + thing = coro(*args, **kwargs) + if iscoroutine(thing): + await thing + + +def autoasync(coro=None, *, loop=None, forever=False, pass_loop=False): + ''' + Convert an asyncio coroutine into a function which, when called, is + evaluted in an event loop, and the return value returned. This is intented + to make it easy to write entry points into asyncio coroutines, which + otherwise need to be explictly evaluted with an event loop's + run_until_complete. + + If `loop` is given, it is used as the event loop to run the coro in. If it + is None (the default), the loop is retreived using asyncio.get_event_loop. + This call is defered until the decorated function is called, so that + callers can install custom event loops or event loop policies after + @autoasync is applied. + + If `forever` is True, the loop is run forever after the decorated coroutine + is finished. Use this for servers created with asyncio.start_server and the + like. + + If `pass_loop` is True, the event loop object is passed into the coroutine + as the `loop` kwarg when the wrapper function is called. In this case, the + wrapper function's __signature__ is updated to remove this parameter, so + that autoparse can still be used on it without generating a parameter for + `loop`. + + This coroutine can be called with ( @autoasync(...) ) or without + ( @autoasync ) arguments. + + Examples: + + @autoasync + def get_file(host, port): + reader, writer = yield from asyncio.open_connection(host, port) + data = reader.read() + sys.stdout.write(data.decode()) + + get_file(host, port) + + @autoasync(forever=True, pass_loop=True) + def server(host, port, loop): + yield_from loop.create_server(Proto, host, port) + + server('localhost', 8899) + + ''' + if coro is None: + return lambda c: autoasync( + c, loop=loop, + forever=forever, + pass_loop=pass_loop) + + # The old and new signatures are required to correctly bind the loop + # parameter in 100% of cases, even if it's a positional parameter. + # NOTE: A future release will probably require the loop parameter to be + # a kwonly parameter. + if pass_loop: + old_sig = signature(coro) + new_sig = old_sig.replace(parameters=( + param for name, param in old_sig.parameters.items() + if name != "loop")) + + @wraps(coro) + def autoasync_wrapper(*args, **kwargs): + # Defer the call to get_event_loop so that, if a custom policy is + # installed after the autoasync decorator, it is respected at call time + local_loop = get_event_loop() if loop is None else loop + + # Inject the 'loop' argument. We have to use this signature binding to + # ensure it's injected in the correct place (positional, keyword, etc) + if pass_loop: + bound_args = old_sig.bind_partial() + bound_args.arguments.update( + loop=local_loop, + **new_sig.bind(*args, **kwargs).arguments) + args, kwargs = bound_args.args, bound_args.kwargs + + if forever: + local_loop.create_task(_run_forever_coro( + coro, args, kwargs, local_loop + )) + local_loop.run_forever() + else: + return local_loop.run_until_complete(coro(*args, **kwargs)) + + # Attach the updated signature. This allows 'pass_loop' to be used with + # autoparse + if pass_loop: + autoasync_wrapper.__signature__ = new_sig + + return autoasync_wrapper diff --git a/setuptools/_vendor/autocommand/autocommand.py b/setuptools/_vendor/autocommand/autocommand.py new file mode 100644 index 0000000000..097e86de07 --- /dev/null +++ b/setuptools/_vendor/autocommand/autocommand.py @@ -0,0 +1,70 @@ +# Copyright 2014-2015 Nathan West +# +# This file is part of autocommand. +# +# autocommand is free software: you can redistribute it and/or modify +# it under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# autocommand is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with autocommand. If not, see . + +from .autoparse import autoparse +from .automain import automain +try: + from .autoasync import autoasync +except ImportError: # pragma: no cover + pass + + +def autocommand( + module, *, + description=None, + epilog=None, + add_nos=False, + parser=None, + loop=None, + forever=False, + pass_loop=False): + + if callable(module): + raise TypeError('autocommand requires a module name argument') + + def autocommand_decorator(func): + # Step 1: if requested, run it all in an asyncio event loop. autoasync + # patches the __signature__ of the decorated function, so that in the + # event that pass_loop is True, the `loop` parameter of the original + # function will *not* be interpreted as a command-line argument by + # autoparse + if loop is not None or forever or pass_loop: + func = autoasync( + func, + loop=None if loop is True else loop, + pass_loop=pass_loop, + forever=forever) + + # Step 2: create parser. We do this second so that the arguments are + # parsed and passed *before* entering the asyncio event loop, if it + # exists. This simplifies the stack trace and ensures errors are + # reported earlier. It also ensures that errors raised during parsing & + # passing are still raised if `forever` is True. + func = autoparse( + func, + description=description, + epilog=epilog, + add_nos=add_nos, + parser=parser) + + # Step 3: call the function automatically if __name__ == '__main__' (or + # if True was provided) + func = automain(module)(func) + + return func + + return autocommand_decorator diff --git a/setuptools/_vendor/autocommand/automain.py b/setuptools/_vendor/autocommand/automain.py new file mode 100644 index 0000000000..6cc45db66a --- /dev/null +++ b/setuptools/_vendor/autocommand/automain.py @@ -0,0 +1,59 @@ +# Copyright 2014-2015 Nathan West +# +# This file is part of autocommand. +# +# autocommand is free software: you can redistribute it and/or modify +# it under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# autocommand is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with autocommand. If not, see . + +import sys +from .errors import AutocommandError + + +class AutomainRequiresModuleError(AutocommandError, TypeError): + pass + + +def automain(module, *, args=(), kwargs=None): + ''' + This decorator automatically invokes a function if the module is being run + as the "__main__" module. Optionally, provide args or kwargs with which to + call the function. If `module` is "__main__", the function is called, and + the program is `sys.exit`ed with the return value. You can also pass `True` + to cause the function to be called unconditionally. If the function is not + called, it is returned unchanged by the decorator. + + Usage: + + @automain(__name__) # Pass __name__ to check __name__=="__main__" + def main(): + ... + + If __name__ is "__main__" here, the main function is called, and then + sys.exit called with the return value. + ''' + + # Check that @automain(...) was called, rather than @automain + if callable(module): + raise AutomainRequiresModuleError(module) + + if module == '__main__' or module is True: + if kwargs is None: + kwargs = {} + + # Use a function definition instead of a lambda for a neater traceback + def automain_decorator(main): + sys.exit(main(*args, **kwargs)) + + return automain_decorator + else: + return lambda main: main diff --git a/setuptools/_vendor/autocommand/autoparse.py b/setuptools/_vendor/autocommand/autoparse.py new file mode 100644 index 0000000000..0276a3fae1 --- /dev/null +++ b/setuptools/_vendor/autocommand/autoparse.py @@ -0,0 +1,333 @@ +# Copyright 2014-2015 Nathan West +# +# This file is part of autocommand. +# +# autocommand is free software: you can redistribute it and/or modify +# it under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# autocommand is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with autocommand. If not, see . + +import sys +from re import compile as compile_regex +from inspect import signature, getdoc, Parameter +from argparse import ArgumentParser +from contextlib import contextmanager +from functools import wraps +from io import IOBase +from autocommand.errors import AutocommandError + + +_empty = Parameter.empty + + +class AnnotationError(AutocommandError): + '''Annotation error: annotation must be a string, type, or tuple of both''' + + +class PositionalArgError(AutocommandError): + ''' + Postional Arg Error: autocommand can't handle postional-only parameters + ''' + + +class KWArgError(AutocommandError): + '''kwarg Error: autocommand can't handle a **kwargs parameter''' + + +class DocstringError(AutocommandError): + '''Docstring error''' + + +class TooManySplitsError(DocstringError): + ''' + The docstring had too many ---- section splits. Currently we only support + using up to a single split, to split the docstring into description and + epilog parts. + ''' + + +def _get_type_description(annotation): + ''' + Given an annotation, return the (type, description) for the parameter. + If you provide an annotation that is somehow both a string and a callable, + the behavior is undefined. + ''' + if annotation is _empty: + return None, None + elif callable(annotation): + return annotation, None + elif isinstance(annotation, str): + return None, annotation + elif isinstance(annotation, tuple): + try: + arg1, arg2 = annotation + except ValueError as e: + raise AnnotationError(annotation) from e + else: + if callable(arg1) and isinstance(arg2, str): + return arg1, arg2 + elif isinstance(arg1, str) and callable(arg2): + return arg2, arg1 + + raise AnnotationError(annotation) + + +def _add_arguments(param, parser, used_char_args, add_nos): + ''' + Add the argument(s) to an ArgumentParser (using add_argument) for a given + parameter. used_char_args is the set of -short options currently already in + use, and is updated (if necessary) by this function. If add_nos is True, + this will also add an inverse switch for all boolean options. For + instance, for the boolean parameter "verbose", this will create --verbose + and --no-verbose. + ''' + + # Impl note: This function is kept separate from make_parser because it's + # already very long and I wanted to separate out as much as possible into + # its own call scope, to prevent even the possibility of suble mutation + # bugs. + if param.kind is param.POSITIONAL_ONLY: + raise PositionalArgError(param) + elif param.kind is param.VAR_KEYWORD: + raise KWArgError(param) + + # These are the kwargs for the add_argument function. + arg_spec = {} + is_option = False + + # Get the type and default from the annotation. + arg_type, description = _get_type_description(param.annotation) + + # Get the default value + default = param.default + + # If there is no explicit type, and the default is present and not None, + # infer the type from the default. + if arg_type is None and default not in {_empty, None}: + arg_type = type(default) + + # Add default. The presence of a default means this is an option, not an + # argument. + if default is not _empty: + arg_spec['default'] = default + is_option = True + + # Add the type + if arg_type is not None: + # Special case for bool: make it just a --switch + if arg_type is bool: + if not default or default is _empty: + arg_spec['action'] = 'store_true' + else: + arg_spec['action'] = 'store_false' + + # Switches are always options + is_option = True + + # Special case for file types: make it a string type, for filename + elif isinstance(default, IOBase): + arg_spec['type'] = str + + # TODO: special case for list type. + # - How to specificy type of list members? + # - param: [int] + # - param: int =[] + # - action='append' vs nargs='*' + + else: + arg_spec['type'] = arg_type + + # nargs: if the signature includes *args, collect them as trailing CLI + # arguments in a list. *args can't have a default value, so it can never be + # an option. + if param.kind is param.VAR_POSITIONAL: + # TODO: consider depluralizing metavar/name here. + arg_spec['nargs'] = '*' + + # Add description. + if description is not None: + arg_spec['help'] = description + + # Get the --flags + flags = [] + name = param.name + + if is_option: + # Add the first letter as a -short option. + for letter in name[0], name[0].swapcase(): + if letter not in used_char_args: + used_char_args.add(letter) + flags.append('-{}'.format(letter)) + break + + # If the parameter is a --long option, or is a -short option that + # somehow failed to get a flag, add it. + if len(name) > 1 or not flags: + flags.append('--{}'.format(name)) + + arg_spec['dest'] = name + else: + flags.append(name) + + parser.add_argument(*flags, **arg_spec) + + # Create the --no- version for boolean switches + if add_nos and arg_type is bool: + parser.add_argument( + '--no-{}'.format(name), + action='store_const', + dest=name, + const=default if default is not _empty else False) + + +def make_parser(func_sig, description, epilog, add_nos): + ''' + Given the signature of a function, create an ArgumentParser + ''' + parser = ArgumentParser(description=description, epilog=epilog) + + used_char_args = {'h'} + + # Arange the params so that single-character arguments are first. This + # esnures they don't have to get --long versions. sorted is stable, so the + # parameters will otherwise still be in relative order. + params = sorted( + func_sig.parameters.values(), + key=lambda param: len(param.name) > 1) + + for param in params: + _add_arguments(param, parser, used_char_args, add_nos) + + return parser + + +_DOCSTRING_SPLIT = compile_regex(r'\n\s*-{4,}\s*\n') + + +def parse_docstring(docstring): + ''' + Given a docstring, parse it into a description and epilog part + ''' + if docstring is None: + return '', '' + + parts = _DOCSTRING_SPLIT.split(docstring) + + if len(parts) == 1: + return docstring, '' + elif len(parts) == 2: + return parts[0], parts[1] + else: + raise TooManySplitsError() + + +def autoparse( + func=None, *, + description=None, + epilog=None, + add_nos=False, + parser=None): + ''' + This decorator converts a function that takes normal arguments into a + function which takes a single optional argument, argv, parses it using an + argparse.ArgumentParser, and calls the underlying function with the parsed + arguments. If it is not given, sys.argv[1:] is used. This is so that the + function can be used as a setuptools entry point, as well as a normal main + function. sys.argv[1:] is not evaluated until the function is called, to + allow injecting different arguments for testing. + + It uses the argument signature of the function to create an + ArgumentParser. Parameters without defaults become positional parameters, + while parameters *with* defaults become --options. Use annotations to set + the type of the parameter. + + The `desctiption` and `epilog` parameters corrospond to the same respective + argparse parameters. If no description is given, it defaults to the + decorated functions's docstring, if present. + + If add_nos is True, every boolean option (that is, every parameter with a + default of True/False or a type of bool) will have a --no- version created + as well, which inverts the option. For instance, the --verbose option will + have a --no-verbose counterpart. These are not mutually exclusive- + whichever one appears last in the argument list will have precedence. + + If a parser is given, it is used instead of one generated from the function + signature. In this case, no parser is created; instead, the given parser is + used to parse the argv argument. The parser's results' argument names must + match up with the parameter names of the decorated function. + + The decorated function is attached to the result as the `func` attribute, + and the parser is attached as the `parser` attribute. + ''' + + # If @autoparse(...) is used instead of @autoparse + if func is None: + return lambda f: autoparse( + f, description=description, + epilog=epilog, + add_nos=add_nos, + parser=parser) + + func_sig = signature(func) + + docstr_description, docstr_epilog = parse_docstring(getdoc(func)) + + if parser is None: + parser = make_parser( + func_sig, + description or docstr_description, + epilog or docstr_epilog, + add_nos) + + @wraps(func) + def autoparse_wrapper(argv=None): + if argv is None: + argv = sys.argv[1:] + + # Get empty argument binding, to fill with parsed arguments. This + # object does all the heavy lifting of turning named arguments into + # into correctly bound *args and **kwargs. + parsed_args = func_sig.bind_partial() + parsed_args.arguments.update(vars(parser.parse_args(argv))) + + return func(*parsed_args.args, **parsed_args.kwargs) + + # TODO: attach an updated __signature__ to autoparse_wrapper, just in case. + + # Attach the wrapped function and parser, and return the wrapper. + autoparse_wrapper.func = func + autoparse_wrapper.parser = parser + return autoparse_wrapper + + +@contextmanager +def smart_open(filename_or_file, *args, **kwargs): + ''' + This context manager allows you to open a filename, if you want to default + some already-existing file object, like sys.stdout, which shouldn't be + closed at the end of the context. If the filename argument is a str, bytes, + or int, the file object is created via a call to open with the given *args + and **kwargs, sent to the context, and closed at the end of the context, + just like "with open(filename) as f:". If it isn't one of the openable + types, the object simply sent to the context unchanged, and left unclosed + at the end of the context. Example: + + def work_with_file(name=sys.stdout): + with smart_open(name) as f: + # Works correctly if name is a str filename or sys.stdout + print("Some stuff", file=f) + # If it was a filename, f is closed at the end here. + ''' + if isinstance(filename_or_file, (str, bytes, int)): + with open(filename_or_file, *args, **kwargs) as file: + yield file + else: + yield filename_or_file diff --git a/setuptools/_vendor/autocommand/errors.py b/setuptools/_vendor/autocommand/errors.py new file mode 100644 index 0000000000..2570607399 --- /dev/null +++ b/setuptools/_vendor/autocommand/errors.py @@ -0,0 +1,23 @@ +# Copyright 2014-2016 Nathan West +# +# This file is part of autocommand. +# +# autocommand is free software: you can redistribute it and/or modify +# it under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# autocommand is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with autocommand. If not, see . + + +class AutocommandError(Exception): + '''Base class for autocommand exceptions''' + pass + +# Individual modules will define errors specific to that module. diff --git a/setuptools/_vendor/backports.tarfile-1.2.0.dist-info/INSTALLER b/setuptools/_vendor/backports.tarfile-1.2.0.dist-info/INSTALLER new file mode 100644 index 0000000000..a1b589e38a --- /dev/null +++ b/setuptools/_vendor/backports.tarfile-1.2.0.dist-info/INSTALLER @@ -0,0 +1 @@ +pip diff --git a/setuptools/_vendor/backports.tarfile-1.2.0.dist-info/LICENSE b/setuptools/_vendor/backports.tarfile-1.2.0.dist-info/LICENSE new file mode 100644 index 0000000000..1bb5a44356 --- /dev/null +++ b/setuptools/_vendor/backports.tarfile-1.2.0.dist-info/LICENSE @@ -0,0 +1,17 @@ +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to +deal in the Software without restriction, including without limitation the +rights to use, copy, modify, merge, publish, distribute, sublicense, and/or +sell copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS +IN THE SOFTWARE. diff --git a/setuptools/_vendor/backports.tarfile-1.2.0.dist-info/METADATA b/setuptools/_vendor/backports.tarfile-1.2.0.dist-info/METADATA new file mode 100644 index 0000000000..db0a2dcdbe --- /dev/null +++ b/setuptools/_vendor/backports.tarfile-1.2.0.dist-info/METADATA @@ -0,0 +1,46 @@ +Metadata-Version: 2.1 +Name: backports.tarfile +Version: 1.2.0 +Summary: Backport of CPython tarfile module +Author-email: "Jason R. Coombs" +Project-URL: Homepage, https://github.com/jaraco/backports.tarfile +Classifier: Development Status :: 5 - Production/Stable +Classifier: Intended Audience :: Developers +Classifier: License :: OSI Approved :: MIT License +Classifier: Programming Language :: Python :: 3 +Classifier: Programming Language :: Python :: 3 :: Only +Requires-Python: >=3.8 +Description-Content-Type: text/x-rst +License-File: LICENSE +Provides-Extra: docs +Requires-Dist: sphinx >=3.5 ; extra == 'docs' +Requires-Dist: jaraco.packaging >=9.3 ; extra == 'docs' +Requires-Dist: rst.linker >=1.9 ; extra == 'docs' +Requires-Dist: furo ; extra == 'docs' +Requires-Dist: sphinx-lint ; extra == 'docs' +Provides-Extra: testing +Requires-Dist: pytest !=8.1.*,>=6 ; extra == 'testing' +Requires-Dist: pytest-checkdocs >=2.4 ; extra == 'testing' +Requires-Dist: pytest-cov ; extra == 'testing' +Requires-Dist: pytest-enabler >=2.2 ; extra == 'testing' +Requires-Dist: jaraco.test ; extra == 'testing' +Requires-Dist: pytest !=8.0.* ; extra == 'testing' + +.. image:: https://img.shields.io/pypi/v/backports.tarfile.svg + :target: https://pypi.org/project/backports.tarfile + +.. image:: https://img.shields.io/pypi/pyversions/backports.tarfile.svg + +.. image:: https://github.com/jaraco/backports.tarfile/actions/workflows/main.yml/badge.svg + :target: https://github.com/jaraco/backports.tarfile/actions?query=workflow%3A%22tests%22 + :alt: tests + +.. image:: https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/charliermarsh/ruff/main/assets/badge/v2.json + :target: https://github.com/astral-sh/ruff + :alt: Ruff + +.. .. image:: https://readthedocs.org/projects/backportstarfile/badge/?version=latest +.. :target: https://backportstarfile.readthedocs.io/en/latest/?badge=latest + +.. image:: https://img.shields.io/badge/skeleton-2024-informational + :target: https://blog.jaraco.com/skeleton diff --git a/setuptools/_vendor/backports.tarfile-1.2.0.dist-info/RECORD b/setuptools/_vendor/backports.tarfile-1.2.0.dist-info/RECORD new file mode 100644 index 0000000000..536dc2f09e --- /dev/null +++ b/setuptools/_vendor/backports.tarfile-1.2.0.dist-info/RECORD @@ -0,0 +1,17 @@ +backports.tarfile-1.2.0.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4 +backports.tarfile-1.2.0.dist-info/LICENSE,sha256=htoPAa6uRjSKPD1GUZXcHOzN55956HdppkuNoEsqR0E,1023 +backports.tarfile-1.2.0.dist-info/METADATA,sha256=ghXFTq132dxaEIolxr3HK1mZqm9iyUmaRANZQSr6WlE,2020 +backports.tarfile-1.2.0.dist-info/RECORD,, +backports.tarfile-1.2.0.dist-info/REQUESTED,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0 +backports.tarfile-1.2.0.dist-info/WHEEL,sha256=GJ7t_kWBFywbagK5eo9IoUwLW6oyOeTKmQ-9iHFVNxQ,92 +backports.tarfile-1.2.0.dist-info/top_level.txt,sha256=cGjaLMOoBR1FK0ApojtzWVmViTtJ7JGIK_HwXiEsvtU,10 +backports/__init__.py,sha256=iOEMwnlORWezdO8-2vxBIPSR37D7JGjluZ8f55vzxls,81 +backports/__pycache__/__init__.cpython-312.pyc,, +backports/tarfile/__init__.py,sha256=Pwf2qUIfB0SolJPCKcx3vz3UEu_aids4g4sAfxy94qg,108491 +backports/tarfile/__main__.py,sha256=Yw2oGT1afrz2eBskzdPYL8ReB_3liApmhFkN2EbDmc4,59 +backports/tarfile/__pycache__/__init__.cpython-312.pyc,, +backports/tarfile/__pycache__/__main__.cpython-312.pyc,, +backports/tarfile/compat/__init__.py,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0 +backports/tarfile/compat/__pycache__/__init__.cpython-312.pyc,, +backports/tarfile/compat/__pycache__/py38.cpython-312.pyc,, +backports/tarfile/compat/py38.py,sha256=iYkyt_gvWjLzGUTJD9TuTfMMjOk-ersXZmRlvQYN2qE,568 diff --git a/setuptools/_vendor/backports.tarfile-1.2.0.dist-info/REQUESTED b/setuptools/_vendor/backports.tarfile-1.2.0.dist-info/REQUESTED new file mode 100644 index 0000000000..e69de29bb2 diff --git a/setuptools/_vendor/backports.tarfile-1.2.0.dist-info/WHEEL b/setuptools/_vendor/backports.tarfile-1.2.0.dist-info/WHEEL new file mode 100644 index 0000000000..bab98d6758 --- /dev/null +++ b/setuptools/_vendor/backports.tarfile-1.2.0.dist-info/WHEEL @@ -0,0 +1,5 @@ +Wheel-Version: 1.0 +Generator: bdist_wheel (0.43.0) +Root-Is-Purelib: true +Tag: py3-none-any + diff --git a/setuptools/_vendor/backports.tarfile-1.2.0.dist-info/top_level.txt b/setuptools/_vendor/backports.tarfile-1.2.0.dist-info/top_level.txt new file mode 100644 index 0000000000..99d2be5b64 --- /dev/null +++ b/setuptools/_vendor/backports.tarfile-1.2.0.dist-info/top_level.txt @@ -0,0 +1 @@ +backports diff --git a/setuptools/_vendor/backports/__init__.py b/setuptools/_vendor/backports/__init__.py new file mode 100644 index 0000000000..0d1f7edf5d --- /dev/null +++ b/setuptools/_vendor/backports/__init__.py @@ -0,0 +1 @@ +__path__ = __import__('pkgutil').extend_path(__path__, __name__) # type: ignore diff --git a/setuptools/_vendor/backports/tarfile/__init__.py b/setuptools/_vendor/backports/tarfile/__init__.py new file mode 100644 index 0000000000..8c16881cb3 --- /dev/null +++ b/setuptools/_vendor/backports/tarfile/__init__.py @@ -0,0 +1,2937 @@ +#------------------------------------------------------------------- +# tarfile.py +#------------------------------------------------------------------- +# Copyright (C) 2002 Lars Gustaebel +# All rights reserved. +# +# Permission is hereby granted, free of charge, to any person +# obtaining a copy of this software and associated documentation +# files (the "Software"), to deal in the Software without +# restriction, including without limitation the rights to use, +# copy, modify, merge, publish, distribute, sublicense, and/or sell +# copies of the Software, and to permit persons to whom the +# Software is furnished to do so, subject to the following +# conditions: +# +# The above copyright notice and this permission notice shall be +# included in all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES +# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT +# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, +# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR +# OTHER DEALINGS IN THE SOFTWARE. +# +"""Read from and write to tar format archives. +""" + +version = "0.9.0" +__author__ = "Lars Gust\u00e4bel (lars@gustaebel.de)" +__credits__ = "Gustavo Niemeyer, Niels Gust\u00e4bel, Richard Townsend." + +#--------- +# Imports +#--------- +from builtins import open as bltn_open +import sys +import os +import io +import shutil +import stat +import time +import struct +import copy +import re + +from .compat.py38 import removesuffix + +try: + import pwd +except ImportError: + pwd = None +try: + import grp +except ImportError: + grp = None + +# os.symlink on Windows prior to 6.0 raises NotImplementedError +# OSError (winerror=1314) will be raised if the caller does not hold the +# SeCreateSymbolicLinkPrivilege privilege +symlink_exception = (AttributeError, NotImplementedError, OSError) + +# from tarfile import * +__all__ = ["TarFile", "TarInfo", "is_tarfile", "TarError", "ReadError", + "CompressionError", "StreamError", "ExtractError", "HeaderError", + "ENCODING", "USTAR_FORMAT", "GNU_FORMAT", "PAX_FORMAT", + "DEFAULT_FORMAT", "open","fully_trusted_filter", "data_filter", + "tar_filter", "FilterError", "AbsoluteLinkError", + "OutsideDestinationError", "SpecialFileError", "AbsolutePathError", + "LinkOutsideDestinationError"] + + +#--------------------------------------------------------- +# tar constants +#--------------------------------------------------------- +NUL = b"\0" # the null character +BLOCKSIZE = 512 # length of processing blocks +RECORDSIZE = BLOCKSIZE * 20 # length of records +GNU_MAGIC = b"ustar \0" # magic gnu tar string +POSIX_MAGIC = b"ustar\x0000" # magic posix tar string + +LENGTH_NAME = 100 # maximum length of a filename +LENGTH_LINK = 100 # maximum length of a linkname +LENGTH_PREFIX = 155 # maximum length of the prefix field + +REGTYPE = b"0" # regular file +AREGTYPE = b"\0" # regular file +LNKTYPE = b"1" # link (inside tarfile) +SYMTYPE = b"2" # symbolic link +CHRTYPE = b"3" # character special device +BLKTYPE = b"4" # block special device +DIRTYPE = b"5" # directory +FIFOTYPE = b"6" # fifo special device +CONTTYPE = b"7" # contiguous file + +GNUTYPE_LONGNAME = b"L" # GNU tar longname +GNUTYPE_LONGLINK = b"K" # GNU tar longlink +GNUTYPE_SPARSE = b"S" # GNU tar sparse file + +XHDTYPE = b"x" # POSIX.1-2001 extended header +XGLTYPE = b"g" # POSIX.1-2001 global header +SOLARIS_XHDTYPE = b"X" # Solaris extended header + +USTAR_FORMAT = 0 # POSIX.1-1988 (ustar) format +GNU_FORMAT = 1 # GNU tar format +PAX_FORMAT = 2 # POSIX.1-2001 (pax) format +DEFAULT_FORMAT = PAX_FORMAT + +#--------------------------------------------------------- +# tarfile constants +#--------------------------------------------------------- +# File types that tarfile supports: +SUPPORTED_TYPES = (REGTYPE, AREGTYPE, LNKTYPE, + SYMTYPE, DIRTYPE, FIFOTYPE, + CONTTYPE, CHRTYPE, BLKTYPE, + GNUTYPE_LONGNAME, GNUTYPE_LONGLINK, + GNUTYPE_SPARSE) + +# File types that will be treated as a regular file. +REGULAR_TYPES = (REGTYPE, AREGTYPE, + CONTTYPE, GNUTYPE_SPARSE) + +# File types that are part of the GNU tar format. +GNU_TYPES = (GNUTYPE_LONGNAME, GNUTYPE_LONGLINK, + GNUTYPE_SPARSE) + +# Fields from a pax header that override a TarInfo attribute. +PAX_FIELDS = ("path", "linkpath", "size", "mtime", + "uid", "gid", "uname", "gname") + +# Fields from a pax header that are affected by hdrcharset. +PAX_NAME_FIELDS = {"path", "linkpath", "uname", "gname"} + +# Fields in a pax header that are numbers, all other fields +# are treated as strings. +PAX_NUMBER_FIELDS = { + "atime": float, + "ctime": float, + "mtime": float, + "uid": int, + "gid": int, + "size": int +} + +#--------------------------------------------------------- +# initialization +#--------------------------------------------------------- +if os.name == "nt": + ENCODING = "utf-8" +else: + ENCODING = sys.getfilesystemencoding() + +#--------------------------------------------------------- +# Some useful functions +#--------------------------------------------------------- + +def stn(s, length, encoding, errors): + """Convert a string to a null-terminated bytes object. + """ + if s is None: + raise ValueError("metadata cannot contain None") + s = s.encode(encoding, errors) + return s[:length] + (length - len(s)) * NUL + +def nts(s, encoding, errors): + """Convert a null-terminated bytes object to a string. + """ + p = s.find(b"\0") + if p != -1: + s = s[:p] + return s.decode(encoding, errors) + +def nti(s): + """Convert a number field to a python number. + """ + # There are two possible encodings for a number field, see + # itn() below. + if s[0] in (0o200, 0o377): + n = 0 + for i in range(len(s) - 1): + n <<= 8 + n += s[i + 1] + if s[0] == 0o377: + n = -(256 ** (len(s) - 1) - n) + else: + try: + s = nts(s, "ascii", "strict") + n = int(s.strip() or "0", 8) + except ValueError: + raise InvalidHeaderError("invalid header") + return n + +def itn(n, digits=8, format=DEFAULT_FORMAT): + """Convert a python number to a number field. + """ + # POSIX 1003.1-1988 requires numbers to be encoded as a string of + # octal digits followed by a null-byte, this allows values up to + # (8**(digits-1))-1. GNU tar allows storing numbers greater than + # that if necessary. A leading 0o200 or 0o377 byte indicate this + # particular encoding, the following digits-1 bytes are a big-endian + # base-256 representation. This allows values up to (256**(digits-1))-1. + # A 0o200 byte indicates a positive number, a 0o377 byte a negative + # number. + original_n = n + n = int(n) + if 0 <= n < 8 ** (digits - 1): + s = bytes("%0*o" % (digits - 1, n), "ascii") + NUL + elif format == GNU_FORMAT and -256 ** (digits - 1) <= n < 256 ** (digits - 1): + if n >= 0: + s = bytearray([0o200]) + else: + s = bytearray([0o377]) + n = 256 ** digits + n + + for i in range(digits - 1): + s.insert(1, n & 0o377) + n >>= 8 + else: + raise ValueError("overflow in number field") + + return s + +def calc_chksums(buf): + """Calculate the checksum for a member's header by summing up all + characters except for the chksum field which is treated as if + it was filled with spaces. According to the GNU tar sources, + some tars (Sun and NeXT) calculate chksum with signed char, + which will be different if there are chars in the buffer with + the high bit set. So we calculate two checksums, unsigned and + signed. + """ + unsigned_chksum = 256 + sum(struct.unpack_from("148B8x356B", buf)) + signed_chksum = 256 + sum(struct.unpack_from("148b8x356b", buf)) + return unsigned_chksum, signed_chksum + +def copyfileobj(src, dst, length=None, exception=OSError, bufsize=None): + """Copy length bytes from fileobj src to fileobj dst. + If length is None, copy the entire content. + """ + bufsize = bufsize or 16 * 1024 + if length == 0: + return + if length is None: + shutil.copyfileobj(src, dst, bufsize) + return + + blocks, remainder = divmod(length, bufsize) + for b in range(blocks): + buf = src.read(bufsize) + if len(buf) < bufsize: + raise exception("unexpected end of data") + dst.write(buf) + + if remainder != 0: + buf = src.read(remainder) + if len(buf) < remainder: + raise exception("unexpected end of data") + dst.write(buf) + return + +def _safe_print(s): + encoding = getattr(sys.stdout, 'encoding', None) + if encoding is not None: + s = s.encode(encoding, 'backslashreplace').decode(encoding) + print(s, end=' ') + + +class TarError(Exception): + """Base exception.""" + pass +class ExtractError(TarError): + """General exception for extract errors.""" + pass +class ReadError(TarError): + """Exception for unreadable tar archives.""" + pass +class CompressionError(TarError): + """Exception for unavailable compression methods.""" + pass +class StreamError(TarError): + """Exception for unsupported operations on stream-like TarFiles.""" + pass +class HeaderError(TarError): + """Base exception for header errors.""" + pass +class EmptyHeaderError(HeaderError): + """Exception for empty headers.""" + pass +class TruncatedHeaderError(HeaderError): + """Exception for truncated headers.""" + pass +class EOFHeaderError(HeaderError): + """Exception for end of file headers.""" + pass +class InvalidHeaderError(HeaderError): + """Exception for invalid headers.""" + pass +class SubsequentHeaderError(HeaderError): + """Exception for missing and invalid extended headers.""" + pass + +#--------------------------- +# internal stream interface +#--------------------------- +class _LowLevelFile: + """Low-level file object. Supports reading and writing. + It is used instead of a regular file object for streaming + access. + """ + + def __init__(self, name, mode): + mode = { + "r": os.O_RDONLY, + "w": os.O_WRONLY | os.O_CREAT | os.O_TRUNC, + }[mode] + if hasattr(os, "O_BINARY"): + mode |= os.O_BINARY + self.fd = os.open(name, mode, 0o666) + + def close(self): + os.close(self.fd) + + def read(self, size): + return os.read(self.fd, size) + + def write(self, s): + os.write(self.fd, s) + +class _Stream: + """Class that serves as an adapter between TarFile and + a stream-like object. The stream-like object only + needs to have a read() or write() method that works with bytes, + and the method is accessed blockwise. + Use of gzip or bzip2 compression is possible. + A stream-like object could be for example: sys.stdin.buffer, + sys.stdout.buffer, a socket, a tape device etc. + + _Stream is intended to be used only internally. + """ + + def __init__(self, name, mode, comptype, fileobj, bufsize, + compresslevel): + """Construct a _Stream object. + """ + self._extfileobj = True + if fileobj is None: + fileobj = _LowLevelFile(name, mode) + self._extfileobj = False + + if comptype == '*': + # Enable transparent compression detection for the + # stream interface + fileobj = _StreamProxy(fileobj) + comptype = fileobj.getcomptype() + + self.name = name or "" + self.mode = mode + self.comptype = comptype + self.fileobj = fileobj + self.bufsize = bufsize + self.buf = b"" + self.pos = 0 + self.closed = False + + try: + if comptype == "gz": + try: + import zlib + except ImportError: + raise CompressionError("zlib module is not available") from None + self.zlib = zlib + self.crc = zlib.crc32(b"") + if mode == "r": + self.exception = zlib.error + self._init_read_gz() + else: + self._init_write_gz(compresslevel) + + elif comptype == "bz2": + try: + import bz2 + except ImportError: + raise CompressionError("bz2 module is not available") from None + if mode == "r": + self.dbuf = b"" + self.cmp = bz2.BZ2Decompressor() + self.exception = OSError + else: + self.cmp = bz2.BZ2Compressor(compresslevel) + + elif comptype == "xz": + try: + import lzma + except ImportError: + raise CompressionError("lzma module is not available") from None + if mode == "r": + self.dbuf = b"" + self.cmp = lzma.LZMADecompressor() + self.exception = lzma.LZMAError + else: + self.cmp = lzma.LZMACompressor() + + elif comptype != "tar": + raise CompressionError("unknown compression type %r" % comptype) + + except: + if not self._extfileobj: + self.fileobj.close() + self.closed = True + raise + + def __del__(self): + if hasattr(self, "closed") and not self.closed: + self.close() + + def _init_write_gz(self, compresslevel): + """Initialize for writing with gzip compression. + """ + self.cmp = self.zlib.compressobj(compresslevel, + self.zlib.DEFLATED, + -self.zlib.MAX_WBITS, + self.zlib.DEF_MEM_LEVEL, + 0) + timestamp = struct.pack(" self.bufsize: + self.fileobj.write(self.buf[:self.bufsize]) + self.buf = self.buf[self.bufsize:] + + def close(self): + """Close the _Stream object. No operation should be + done on it afterwards. + """ + if self.closed: + return + + self.closed = True + try: + if self.mode == "w" and self.comptype != "tar": + self.buf += self.cmp.flush() + + if self.mode == "w" and self.buf: + self.fileobj.write(self.buf) + self.buf = b"" + if self.comptype == "gz": + self.fileobj.write(struct.pack("= 0: + blocks, remainder = divmod(pos - self.pos, self.bufsize) + for i in range(blocks): + self.read(self.bufsize) + self.read(remainder) + else: + raise StreamError("seeking backwards is not allowed") + return self.pos + + def read(self, size): + """Return the next size number of bytes from the stream.""" + assert size is not None + buf = self._read(size) + self.pos += len(buf) + return buf + + def _read(self, size): + """Return size bytes from the stream. + """ + if self.comptype == "tar": + return self.__read(size) + + c = len(self.dbuf) + t = [self.dbuf] + while c < size: + # Skip underlying buffer to avoid unaligned double buffering. + if self.buf: + buf = self.buf + self.buf = b"" + else: + buf = self.fileobj.read(self.bufsize) + if not buf: + break + try: + buf = self.cmp.decompress(buf) + except self.exception as e: + raise ReadError("invalid compressed data") from e + t.append(buf) + c += len(buf) + t = b"".join(t) + self.dbuf = t[size:] + return t[:size] + + def __read(self, size): + """Return size bytes from stream. If internal buffer is empty, + read another block from the stream. + """ + c = len(self.buf) + t = [self.buf] + while c < size: + buf = self.fileobj.read(self.bufsize) + if not buf: + break + t.append(buf) + c += len(buf) + t = b"".join(t) + self.buf = t[size:] + return t[:size] +# class _Stream + +class _StreamProxy(object): + """Small proxy class that enables transparent compression + detection for the Stream interface (mode 'r|*'). + """ + + def __init__(self, fileobj): + self.fileobj = fileobj + self.buf = self.fileobj.read(BLOCKSIZE) + + def read(self, size): + self.read = self.fileobj.read + return self.buf + + def getcomptype(self): + if self.buf.startswith(b"\x1f\x8b\x08"): + return "gz" + elif self.buf[0:3] == b"BZh" and self.buf[4:10] == b"1AY&SY": + return "bz2" + elif self.buf.startswith((b"\x5d\x00\x00\x80", b"\xfd7zXZ")): + return "xz" + else: + return "tar" + + def close(self): + self.fileobj.close() +# class StreamProxy + +#------------------------ +# Extraction file object +#------------------------ +class _FileInFile(object): + """A thin wrapper around an existing file object that + provides a part of its data as an individual file + object. + """ + + def __init__(self, fileobj, offset, size, name, blockinfo=None): + self.fileobj = fileobj + self.offset = offset + self.size = size + self.position = 0 + self.name = name + self.closed = False + + if blockinfo is None: + blockinfo = [(0, size)] + + # Construct a map with data and zero blocks. + self.map_index = 0 + self.map = [] + lastpos = 0 + realpos = self.offset + for offset, size in blockinfo: + if offset > lastpos: + self.map.append((False, lastpos, offset, None)) + self.map.append((True, offset, offset + size, realpos)) + realpos += size + lastpos = offset + size + if lastpos < self.size: + self.map.append((False, lastpos, self.size, None)) + + def flush(self): + pass + + @property + def mode(self): + return 'rb' + + def readable(self): + return True + + def writable(self): + return False + + def seekable(self): + return self.fileobj.seekable() + + def tell(self): + """Return the current file position. + """ + return self.position + + def seek(self, position, whence=io.SEEK_SET): + """Seek to a position in the file. + """ + if whence == io.SEEK_SET: + self.position = min(max(position, 0), self.size) + elif whence == io.SEEK_CUR: + if position < 0: + self.position = max(self.position + position, 0) + else: + self.position = min(self.position + position, self.size) + elif whence == io.SEEK_END: + self.position = max(min(self.size + position, self.size), 0) + else: + raise ValueError("Invalid argument") + return self.position + + def read(self, size=None): + """Read data from the file. + """ + if size is None: + size = self.size - self.position + else: + size = min(size, self.size - self.position) + + buf = b"" + while size > 0: + while True: + data, start, stop, offset = self.map[self.map_index] + if start <= self.position < stop: + break + else: + self.map_index += 1 + if self.map_index == len(self.map): + self.map_index = 0 + length = min(size, stop - self.position) + if data: + self.fileobj.seek(offset + (self.position - start)) + b = self.fileobj.read(length) + if len(b) != length: + raise ReadError("unexpected end of data") + buf += b + else: + buf += NUL * length + size -= length + self.position += length + return buf + + def readinto(self, b): + buf = self.read(len(b)) + b[:len(buf)] = buf + return len(buf) + + def close(self): + self.closed = True +#class _FileInFile + +class ExFileObject(io.BufferedReader): + + def __init__(self, tarfile, tarinfo): + fileobj = _FileInFile(tarfile.fileobj, tarinfo.offset_data, + tarinfo.size, tarinfo.name, tarinfo.sparse) + super().__init__(fileobj) +#class ExFileObject + + +#----------------------------- +# extraction filters (PEP 706) +#----------------------------- + +class FilterError(TarError): + pass + +class AbsolutePathError(FilterError): + def __init__(self, tarinfo): + self.tarinfo = tarinfo + super().__init__(f'member {tarinfo.name!r} has an absolute path') + +class OutsideDestinationError(FilterError): + def __init__(self, tarinfo, path): + self.tarinfo = tarinfo + self._path = path + super().__init__(f'{tarinfo.name!r} would be extracted to {path!r}, ' + + 'which is outside the destination') + +class SpecialFileError(FilterError): + def __init__(self, tarinfo): + self.tarinfo = tarinfo + super().__init__(f'{tarinfo.name!r} is a special file') + +class AbsoluteLinkError(FilterError): + def __init__(self, tarinfo): + self.tarinfo = tarinfo + super().__init__(f'{tarinfo.name!r} is a link to an absolute path') + +class LinkOutsideDestinationError(FilterError): + def __init__(self, tarinfo, path): + self.tarinfo = tarinfo + self._path = path + super().__init__(f'{tarinfo.name!r} would link to {path!r}, ' + + 'which is outside the destination') + +def _get_filtered_attrs(member, dest_path, for_data=True): + new_attrs = {} + name = member.name + dest_path = os.path.realpath(dest_path) + # Strip leading / (tar's directory separator) from filenames. + # Include os.sep (target OS directory separator) as well. + if name.startswith(('/', os.sep)): + name = new_attrs['name'] = member.path.lstrip('/' + os.sep) + if os.path.isabs(name): + # Path is absolute even after stripping. + # For example, 'C:/foo' on Windows. + raise AbsolutePathError(member) + # Ensure we stay in the destination + target_path = os.path.realpath(os.path.join(dest_path, name)) + if os.path.commonpath([target_path, dest_path]) != dest_path: + raise OutsideDestinationError(member, target_path) + # Limit permissions (no high bits, and go-w) + mode = member.mode + if mode is not None: + # Strip high bits & group/other write bits + mode = mode & 0o755 + if for_data: + # For data, handle permissions & file types + if member.isreg() or member.islnk(): + if not mode & 0o100: + # Clear executable bits if not executable by user + mode &= ~0o111 + # Ensure owner can read & write + mode |= 0o600 + elif member.isdir() or member.issym(): + # Ignore mode for directories & symlinks + mode = None + else: + # Reject special files + raise SpecialFileError(member) + if mode != member.mode: + new_attrs['mode'] = mode + if for_data: + # Ignore ownership for 'data' + if member.uid is not None: + new_attrs['uid'] = None + if member.gid is not None: + new_attrs['gid'] = None + if member.uname is not None: + new_attrs['uname'] = None + if member.gname is not None: + new_attrs['gname'] = None + # Check link destination for 'data' + if member.islnk() or member.issym(): + if os.path.isabs(member.linkname): + raise AbsoluteLinkError(member) + if member.issym(): + target_path = os.path.join(dest_path, + os.path.dirname(name), + member.linkname) + else: + target_path = os.path.join(dest_path, + member.linkname) + target_path = os.path.realpath(target_path) + if os.path.commonpath([target_path, dest_path]) != dest_path: + raise LinkOutsideDestinationError(member, target_path) + return new_attrs + +def fully_trusted_filter(member, dest_path): + return member + +def tar_filter(member, dest_path): + new_attrs = _get_filtered_attrs(member, dest_path, False) + if new_attrs: + return member.replace(**new_attrs, deep=False) + return member + +def data_filter(member, dest_path): + new_attrs = _get_filtered_attrs(member, dest_path, True) + if new_attrs: + return member.replace(**new_attrs, deep=False) + return member + +_NAMED_FILTERS = { + "fully_trusted": fully_trusted_filter, + "tar": tar_filter, + "data": data_filter, +} + +#------------------ +# Exported Classes +#------------------ + +# Sentinel for replace() defaults, meaning "don't change the attribute" +_KEEP = object() + +class TarInfo(object): + """Informational class which holds the details about an + archive member given by a tar header block. + TarInfo objects are returned by TarFile.getmember(), + TarFile.getmembers() and TarFile.gettarinfo() and are + usually created internally. + """ + + __slots__ = dict( + name = 'Name of the archive member.', + mode = 'Permission bits.', + uid = 'User ID of the user who originally stored this member.', + gid = 'Group ID of the user who originally stored this member.', + size = 'Size in bytes.', + mtime = 'Time of last modification.', + chksum = 'Header checksum.', + type = ('File type. type is usually one of these constants: ' + 'REGTYPE, AREGTYPE, LNKTYPE, SYMTYPE, DIRTYPE, FIFOTYPE, ' + 'CONTTYPE, CHRTYPE, BLKTYPE, GNUTYPE_SPARSE.'), + linkname = ('Name of the target file name, which is only present ' + 'in TarInfo objects of type LNKTYPE and SYMTYPE.'), + uname = 'User name.', + gname = 'Group name.', + devmajor = 'Device major number.', + devminor = 'Device minor number.', + offset = 'The tar header starts here.', + offset_data = "The file's data starts here.", + pax_headers = ('A dictionary containing key-value pairs of an ' + 'associated pax extended header.'), + sparse = 'Sparse member information.', + _tarfile = None, + _sparse_structs = None, + _link_target = None, + ) + + def __init__(self, name=""): + """Construct a TarInfo object. name is the optional name + of the member. + """ + self.name = name # member name + self.mode = 0o644 # file permissions + self.uid = 0 # user id + self.gid = 0 # group id + self.size = 0 # file size + self.mtime = 0 # modification time + self.chksum = 0 # header checksum + self.type = REGTYPE # member type + self.linkname = "" # link name + self.uname = "" # user name + self.gname = "" # group name + self.devmajor = 0 # device major number + self.devminor = 0 # device minor number + + self.offset = 0 # the tar header starts here + self.offset_data = 0 # the file's data starts here + + self.sparse = None # sparse member information + self.pax_headers = {} # pax header information + + @property + def tarfile(self): + import warnings + warnings.warn( + 'The undocumented "tarfile" attribute of TarInfo objects ' + + 'is deprecated and will be removed in Python 3.16', + DeprecationWarning, stacklevel=2) + return self._tarfile + + @tarfile.setter + def tarfile(self, tarfile): + import warnings + warnings.warn( + 'The undocumented "tarfile" attribute of TarInfo objects ' + + 'is deprecated and will be removed in Python 3.16', + DeprecationWarning, stacklevel=2) + self._tarfile = tarfile + + @property + def path(self): + 'In pax headers, "name" is called "path".' + return self.name + + @path.setter + def path(self, name): + self.name = name + + @property + def linkpath(self): + 'In pax headers, "linkname" is called "linkpath".' + return self.linkname + + @linkpath.setter + def linkpath(self, linkname): + self.linkname = linkname + + def __repr__(self): + return "<%s %r at %#x>" % (self.__class__.__name__,self.name,id(self)) + + def replace(self, *, + name=_KEEP, mtime=_KEEP, mode=_KEEP, linkname=_KEEP, + uid=_KEEP, gid=_KEEP, uname=_KEEP, gname=_KEEP, + deep=True, _KEEP=_KEEP): + """Return a deep copy of self with the given attributes replaced. + """ + if deep: + result = copy.deepcopy(self) + else: + result = copy.copy(self) + if name is not _KEEP: + result.name = name + if mtime is not _KEEP: + result.mtime = mtime + if mode is not _KEEP: + result.mode = mode + if linkname is not _KEEP: + result.linkname = linkname + if uid is not _KEEP: + result.uid = uid + if gid is not _KEEP: + result.gid = gid + if uname is not _KEEP: + result.uname = uname + if gname is not _KEEP: + result.gname = gname + return result + + def get_info(self): + """Return the TarInfo's attributes as a dictionary. + """ + if self.mode is None: + mode = None + else: + mode = self.mode & 0o7777 + info = { + "name": self.name, + "mode": mode, + "uid": self.uid, + "gid": self.gid, + "size": self.size, + "mtime": self.mtime, + "chksum": self.chksum, + "type": self.type, + "linkname": self.linkname, + "uname": self.uname, + "gname": self.gname, + "devmajor": self.devmajor, + "devminor": self.devminor + } + + if info["type"] == DIRTYPE and not info["name"].endswith("/"): + info["name"] += "/" + + return info + + def tobuf(self, format=DEFAULT_FORMAT, encoding=ENCODING, errors="surrogateescape"): + """Return a tar header as a string of 512 byte blocks. + """ + info = self.get_info() + for name, value in info.items(): + if value is None: + raise ValueError("%s may not be None" % name) + + if format == USTAR_FORMAT: + return self.create_ustar_header(info, encoding, errors) + elif format == GNU_FORMAT: + return self.create_gnu_header(info, encoding, errors) + elif format == PAX_FORMAT: + return self.create_pax_header(info, encoding) + else: + raise ValueError("invalid format") + + def create_ustar_header(self, info, encoding, errors): + """Return the object as a ustar header block. + """ + info["magic"] = POSIX_MAGIC + + if len(info["linkname"].encode(encoding, errors)) > LENGTH_LINK: + raise ValueError("linkname is too long") + + if len(info["name"].encode(encoding, errors)) > LENGTH_NAME: + info["prefix"], info["name"] = self._posix_split_name(info["name"], encoding, errors) + + return self._create_header(info, USTAR_FORMAT, encoding, errors) + + def create_gnu_header(self, info, encoding, errors): + """Return the object as a GNU header block sequence. + """ + info["magic"] = GNU_MAGIC + + buf = b"" + if len(info["linkname"].encode(encoding, errors)) > LENGTH_LINK: + buf += self._create_gnu_long_header(info["linkname"], GNUTYPE_LONGLINK, encoding, errors) + + if len(info["name"].encode(encoding, errors)) > LENGTH_NAME: + buf += self._create_gnu_long_header(info["name"], GNUTYPE_LONGNAME, encoding, errors) + + return buf + self._create_header(info, GNU_FORMAT, encoding, errors) + + def create_pax_header(self, info, encoding): + """Return the object as a ustar header block. If it cannot be + represented this way, prepend a pax extended header sequence + with supplement information. + """ + info["magic"] = POSIX_MAGIC + pax_headers = self.pax_headers.copy() + + # Test string fields for values that exceed the field length or cannot + # be represented in ASCII encoding. + for name, hname, length in ( + ("name", "path", LENGTH_NAME), ("linkname", "linkpath", LENGTH_LINK), + ("uname", "uname", 32), ("gname", "gname", 32)): + + if hname in pax_headers: + # The pax header has priority. + continue + + # Try to encode the string as ASCII. + try: + info[name].encode("ascii", "strict") + except UnicodeEncodeError: + pax_headers[hname] = info[name] + continue + + if len(info[name]) > length: + pax_headers[hname] = info[name] + + # Test number fields for values that exceed the field limit or values + # that like to be stored as float. + for name, digits in (("uid", 8), ("gid", 8), ("size", 12), ("mtime", 12)): + needs_pax = False + + val = info[name] + val_is_float = isinstance(val, float) + val_int = round(val) if val_is_float else val + if not 0 <= val_int < 8 ** (digits - 1): + # Avoid overflow. + info[name] = 0 + needs_pax = True + elif val_is_float: + # Put rounded value in ustar header, and full + # precision value in pax header. + info[name] = val_int + needs_pax = True + + # The existing pax header has priority. + if needs_pax and name not in pax_headers: + pax_headers[name] = str(val) + + # Create a pax extended header if necessary. + if pax_headers: + buf = self._create_pax_generic_header(pax_headers, XHDTYPE, encoding) + else: + buf = b"" + + return buf + self._create_header(info, USTAR_FORMAT, "ascii", "replace") + + @classmethod + def create_pax_global_header(cls, pax_headers): + """Return the object as a pax global header block sequence. + """ + return cls._create_pax_generic_header(pax_headers, XGLTYPE, "utf-8") + + def _posix_split_name(self, name, encoding, errors): + """Split a name longer than 100 chars into a prefix + and a name part. + """ + components = name.split("/") + for i in range(1, len(components)): + prefix = "/".join(components[:i]) + name = "/".join(components[i:]) + if len(prefix.encode(encoding, errors)) <= LENGTH_PREFIX and \ + len(name.encode(encoding, errors)) <= LENGTH_NAME: + break + else: + raise ValueError("name is too long") + + return prefix, name + + @staticmethod + def _create_header(info, format, encoding, errors): + """Return a header block. info is a dictionary with file + information, format must be one of the *_FORMAT constants. + """ + has_device_fields = info.get("type") in (CHRTYPE, BLKTYPE) + if has_device_fields: + devmajor = itn(info.get("devmajor", 0), 8, format) + devminor = itn(info.get("devminor", 0), 8, format) + else: + devmajor = stn("", 8, encoding, errors) + devminor = stn("", 8, encoding, errors) + + # None values in metadata should cause ValueError. + # itn()/stn() do this for all fields except type. + filetype = info.get("type", REGTYPE) + if filetype is None: + raise ValueError("TarInfo.type must not be None") + + parts = [ + stn(info.get("name", ""), 100, encoding, errors), + itn(info.get("mode", 0) & 0o7777, 8, format), + itn(info.get("uid", 0), 8, format), + itn(info.get("gid", 0), 8, format), + itn(info.get("size", 0), 12, format), + itn(info.get("mtime", 0), 12, format), + b" ", # checksum field + filetype, + stn(info.get("linkname", ""), 100, encoding, errors), + info.get("magic", POSIX_MAGIC), + stn(info.get("uname", ""), 32, encoding, errors), + stn(info.get("gname", ""), 32, encoding, errors), + devmajor, + devminor, + stn(info.get("prefix", ""), 155, encoding, errors) + ] + + buf = struct.pack("%ds" % BLOCKSIZE, b"".join(parts)) + chksum = calc_chksums(buf[-BLOCKSIZE:])[0] + buf = buf[:-364] + bytes("%06o\0" % chksum, "ascii") + buf[-357:] + return buf + + @staticmethod + def _create_payload(payload): + """Return the string payload filled with zero bytes + up to the next 512 byte border. + """ + blocks, remainder = divmod(len(payload), BLOCKSIZE) + if remainder > 0: + payload += (BLOCKSIZE - remainder) * NUL + return payload + + @classmethod + def _create_gnu_long_header(cls, name, type, encoding, errors): + """Return a GNUTYPE_LONGNAME or GNUTYPE_LONGLINK sequence + for name. + """ + name = name.encode(encoding, errors) + NUL + + info = {} + info["name"] = "././@LongLink" + info["type"] = type + info["size"] = len(name) + info["magic"] = GNU_MAGIC + + # create extended header + name blocks. + return cls._create_header(info, USTAR_FORMAT, encoding, errors) + \ + cls._create_payload(name) + + @classmethod + def _create_pax_generic_header(cls, pax_headers, type, encoding): + """Return a POSIX.1-2008 extended or global header sequence + that contains a list of keyword, value pairs. The values + must be strings. + """ + # Check if one of the fields contains surrogate characters and thereby + # forces hdrcharset=BINARY, see _proc_pax() for more information. + binary = False + for keyword, value in pax_headers.items(): + try: + value.encode("utf-8", "strict") + except UnicodeEncodeError: + binary = True + break + + records = b"" + if binary: + # Put the hdrcharset field at the beginning of the header. + records += b"21 hdrcharset=BINARY\n" + + for keyword, value in pax_headers.items(): + keyword = keyword.encode("utf-8") + if binary: + # Try to restore the original byte representation of 'value'. + # Needless to say, that the encoding must match the string. + value = value.encode(encoding, "surrogateescape") + else: + value = value.encode("utf-8") + + l = len(keyword) + len(value) + 3 # ' ' + '=' + '\n' + n = p = 0 + while True: + n = l + len(str(p)) + if n == p: + break + p = n + records += bytes(str(p), "ascii") + b" " + keyword + b"=" + value + b"\n" + + # We use a hardcoded "././@PaxHeader" name like star does + # instead of the one that POSIX recommends. + info = {} + info["name"] = "././@PaxHeader" + info["type"] = type + info["size"] = len(records) + info["magic"] = POSIX_MAGIC + + # Create pax header + record blocks. + return cls._create_header(info, USTAR_FORMAT, "ascii", "replace") + \ + cls._create_payload(records) + + @classmethod + def frombuf(cls, buf, encoding, errors): + """Construct a TarInfo object from a 512 byte bytes object. + """ + if len(buf) == 0: + raise EmptyHeaderError("empty header") + if len(buf) != BLOCKSIZE: + raise TruncatedHeaderError("truncated header") + if buf.count(NUL) == BLOCKSIZE: + raise EOFHeaderError("end of file header") + + chksum = nti(buf[148:156]) + if chksum not in calc_chksums(buf): + raise InvalidHeaderError("bad checksum") + + obj = cls() + obj.name = nts(buf[0:100], encoding, errors) + obj.mode = nti(buf[100:108]) + obj.uid = nti(buf[108:116]) + obj.gid = nti(buf[116:124]) + obj.size = nti(buf[124:136]) + obj.mtime = nti(buf[136:148]) + obj.chksum = chksum + obj.type = buf[156:157] + obj.linkname = nts(buf[157:257], encoding, errors) + obj.uname = nts(buf[265:297], encoding, errors) + obj.gname = nts(buf[297:329], encoding, errors) + obj.devmajor = nti(buf[329:337]) + obj.devminor = nti(buf[337:345]) + prefix = nts(buf[345:500], encoding, errors) + + # Old V7 tar format represents a directory as a regular + # file with a trailing slash. + if obj.type == AREGTYPE and obj.name.endswith("/"): + obj.type = DIRTYPE + + # The old GNU sparse format occupies some of the unused + # space in the buffer for up to 4 sparse structures. + # Save them for later processing in _proc_sparse(). + if obj.type == GNUTYPE_SPARSE: + pos = 386 + structs = [] + for i in range(4): + try: + offset = nti(buf[pos:pos + 12]) + numbytes = nti(buf[pos + 12:pos + 24]) + except ValueError: + break + structs.append((offset, numbytes)) + pos += 24 + isextended = bool(buf[482]) + origsize = nti(buf[483:495]) + obj._sparse_structs = (structs, isextended, origsize) + + # Remove redundant slashes from directories. + if obj.isdir(): + obj.name = obj.name.rstrip("/") + + # Reconstruct a ustar longname. + if prefix and obj.type not in GNU_TYPES: + obj.name = prefix + "/" + obj.name + return obj + + @classmethod + def fromtarfile(cls, tarfile): + """Return the next TarInfo object from TarFile object + tarfile. + """ + buf = tarfile.fileobj.read(BLOCKSIZE) + obj = cls.frombuf(buf, tarfile.encoding, tarfile.errors) + obj.offset = tarfile.fileobj.tell() - BLOCKSIZE + return obj._proc_member(tarfile) + + #-------------------------------------------------------------------------- + # The following are methods that are called depending on the type of a + # member. The entry point is _proc_member() which can be overridden in a + # subclass to add custom _proc_*() methods. A _proc_*() method MUST + # implement the following + # operations: + # 1. Set self.offset_data to the position where the data blocks begin, + # if there is data that follows. + # 2. Set tarfile.offset to the position where the next member's header will + # begin. + # 3. Return self or another valid TarInfo object. + def _proc_member(self, tarfile): + """Choose the right processing method depending on + the type and call it. + """ + if self.type in (GNUTYPE_LONGNAME, GNUTYPE_LONGLINK): + return self._proc_gnulong(tarfile) + elif self.type == GNUTYPE_SPARSE: + return self._proc_sparse(tarfile) + elif self.type in (XHDTYPE, XGLTYPE, SOLARIS_XHDTYPE): + return self._proc_pax(tarfile) + else: + return self._proc_builtin(tarfile) + + def _proc_builtin(self, tarfile): + """Process a builtin type or an unknown type which + will be treated as a regular file. + """ + self.offset_data = tarfile.fileobj.tell() + offset = self.offset_data + if self.isreg() or self.type not in SUPPORTED_TYPES: + # Skip the following data blocks. + offset += self._block(self.size) + tarfile.offset = offset + + # Patch the TarInfo object with saved global + # header information. + self._apply_pax_info(tarfile.pax_headers, tarfile.encoding, tarfile.errors) + + # Remove redundant slashes from directories. This is to be consistent + # with frombuf(). + if self.isdir(): + self.name = self.name.rstrip("/") + + return self + + def _proc_gnulong(self, tarfile): + """Process the blocks that hold a GNU longname + or longlink member. + """ + buf = tarfile.fileobj.read(self._block(self.size)) + + # Fetch the next header and process it. + try: + next = self.fromtarfile(tarfile) + except HeaderError as e: + raise SubsequentHeaderError(str(e)) from None + + # Patch the TarInfo object from the next header with + # the longname information. + next.offset = self.offset + if self.type == GNUTYPE_LONGNAME: + next.name = nts(buf, tarfile.encoding, tarfile.errors) + elif self.type == GNUTYPE_LONGLINK: + next.linkname = nts(buf, tarfile.encoding, tarfile.errors) + + # Remove redundant slashes from directories. This is to be consistent + # with frombuf(). + if next.isdir(): + next.name = removesuffix(next.name, "/") + + return next + + def _proc_sparse(self, tarfile): + """Process a GNU sparse header plus extra headers. + """ + # We already collected some sparse structures in frombuf(). + structs, isextended, origsize = self._sparse_structs + del self._sparse_structs + + # Collect sparse structures from extended header blocks. + while isextended: + buf = tarfile.fileobj.read(BLOCKSIZE) + pos = 0 + for i in range(21): + try: + offset = nti(buf[pos:pos + 12]) + numbytes = nti(buf[pos + 12:pos + 24]) + except ValueError: + break + if offset and numbytes: + structs.append((offset, numbytes)) + pos += 24 + isextended = bool(buf[504]) + self.sparse = structs + + self.offset_data = tarfile.fileobj.tell() + tarfile.offset = self.offset_data + self._block(self.size) + self.size = origsize + return self + + def _proc_pax(self, tarfile): + """Process an extended or global header as described in + POSIX.1-2008. + """ + # Read the header information. + buf = tarfile.fileobj.read(self._block(self.size)) + + # A pax header stores supplemental information for either + # the following file (extended) or all following files + # (global). + if self.type == XGLTYPE: + pax_headers = tarfile.pax_headers + else: + pax_headers = tarfile.pax_headers.copy() + + # Check if the pax header contains a hdrcharset field. This tells us + # the encoding of the path, linkpath, uname and gname fields. Normally, + # these fields are UTF-8 encoded but since POSIX.1-2008 tar + # implementations are allowed to store them as raw binary strings if + # the translation to UTF-8 fails. + match = re.search(br"\d+ hdrcharset=([^\n]+)\n", buf) + if match is not None: + pax_headers["hdrcharset"] = match.group(1).decode("utf-8") + + # For the time being, we don't care about anything other than "BINARY". + # The only other value that is currently allowed by the standard is + # "ISO-IR 10646 2000 UTF-8" in other words UTF-8. + hdrcharset = pax_headers.get("hdrcharset") + if hdrcharset == "BINARY": + encoding = tarfile.encoding + else: + encoding = "utf-8" + + # Parse pax header information. A record looks like that: + # "%d %s=%s\n" % (length, keyword, value). length is the size + # of the complete record including the length field itself and + # the newline. keyword and value are both UTF-8 encoded strings. + regex = re.compile(br"(\d+) ([^=]+)=") + pos = 0 + while match := regex.match(buf, pos): + length, keyword = match.groups() + length = int(length) + if length == 0: + raise InvalidHeaderError("invalid header") + value = buf[match.end(2) + 1:match.start(1) + length - 1] + + # Normally, we could just use "utf-8" as the encoding and "strict" + # as the error handler, but we better not take the risk. For + # example, GNU tar <= 1.23 is known to store filenames it cannot + # translate to UTF-8 as raw strings (unfortunately without a + # hdrcharset=BINARY header). + # We first try the strict standard encoding, and if that fails we + # fall back on the user's encoding and error handler. + keyword = self._decode_pax_field(keyword, "utf-8", "utf-8", + tarfile.errors) + if keyword in PAX_NAME_FIELDS: + value = self._decode_pax_field(value, encoding, tarfile.encoding, + tarfile.errors) + else: + value = self._decode_pax_field(value, "utf-8", "utf-8", + tarfile.errors) + + pax_headers[keyword] = value + pos += length + + # Fetch the next header. + try: + next = self.fromtarfile(tarfile) + except HeaderError as e: + raise SubsequentHeaderError(str(e)) from None + + # Process GNU sparse information. + if "GNU.sparse.map" in pax_headers: + # GNU extended sparse format version 0.1. + self._proc_gnusparse_01(next, pax_headers) + + elif "GNU.sparse.size" in pax_headers: + # GNU extended sparse format version 0.0. + self._proc_gnusparse_00(next, pax_headers, buf) + + elif pax_headers.get("GNU.sparse.major") == "1" and pax_headers.get("GNU.sparse.minor") == "0": + # GNU extended sparse format version 1.0. + self._proc_gnusparse_10(next, pax_headers, tarfile) + + if self.type in (XHDTYPE, SOLARIS_XHDTYPE): + # Patch the TarInfo object with the extended header info. + next._apply_pax_info(pax_headers, tarfile.encoding, tarfile.errors) + next.offset = self.offset + + if "size" in pax_headers: + # If the extended header replaces the size field, + # we need to recalculate the offset where the next + # header starts. + offset = next.offset_data + if next.isreg() or next.type not in SUPPORTED_TYPES: + offset += next._block(next.size) + tarfile.offset = offset + + return next + + def _proc_gnusparse_00(self, next, pax_headers, buf): + """Process a GNU tar extended sparse header, version 0.0. + """ + offsets = [] + for match in re.finditer(br"\d+ GNU.sparse.offset=(\d+)\n", buf): + offsets.append(int(match.group(1))) + numbytes = [] + for match in re.finditer(br"\d+ GNU.sparse.numbytes=(\d+)\n", buf): + numbytes.append(int(match.group(1))) + next.sparse = list(zip(offsets, numbytes)) + + def _proc_gnusparse_01(self, next, pax_headers): + """Process a GNU tar extended sparse header, version 0.1. + """ + sparse = [int(x) for x in pax_headers["GNU.sparse.map"].split(",")] + next.sparse = list(zip(sparse[::2], sparse[1::2])) + + def _proc_gnusparse_10(self, next, pax_headers, tarfile): + """Process a GNU tar extended sparse header, version 1.0. + """ + fields = None + sparse = [] + buf = tarfile.fileobj.read(BLOCKSIZE) + fields, buf = buf.split(b"\n", 1) + fields = int(fields) + while len(sparse) < fields * 2: + if b"\n" not in buf: + buf += tarfile.fileobj.read(BLOCKSIZE) + number, buf = buf.split(b"\n", 1) + sparse.append(int(number)) + next.offset_data = tarfile.fileobj.tell() + next.sparse = list(zip(sparse[::2], sparse[1::2])) + + def _apply_pax_info(self, pax_headers, encoding, errors): + """Replace fields with supplemental information from a previous + pax extended or global header. + """ + for keyword, value in pax_headers.items(): + if keyword == "GNU.sparse.name": + setattr(self, "path", value) + elif keyword == "GNU.sparse.size": + setattr(self, "size", int(value)) + elif keyword == "GNU.sparse.realsize": + setattr(self, "size", int(value)) + elif keyword in PAX_FIELDS: + if keyword in PAX_NUMBER_FIELDS: + try: + value = PAX_NUMBER_FIELDS[keyword](value) + except ValueError: + value = 0 + if keyword == "path": + value = value.rstrip("/") + setattr(self, keyword, value) + + self.pax_headers = pax_headers.copy() + + def _decode_pax_field(self, value, encoding, fallback_encoding, fallback_errors): + """Decode a single field from a pax record. + """ + try: + return value.decode(encoding, "strict") + except UnicodeDecodeError: + return value.decode(fallback_encoding, fallback_errors) + + def _block(self, count): + """Round up a byte count by BLOCKSIZE and return it, + e.g. _block(834) => 1024. + """ + blocks, remainder = divmod(count, BLOCKSIZE) + if remainder: + blocks += 1 + return blocks * BLOCKSIZE + + def isreg(self): + 'Return True if the Tarinfo object is a regular file.' + return self.type in REGULAR_TYPES + + def isfile(self): + 'Return True if the Tarinfo object is a regular file.' + return self.isreg() + + def isdir(self): + 'Return True if it is a directory.' + return self.type == DIRTYPE + + def issym(self): + 'Return True if it is a symbolic link.' + return self.type == SYMTYPE + + def islnk(self): + 'Return True if it is a hard link.' + return self.type == LNKTYPE + + def ischr(self): + 'Return True if it is a character device.' + return self.type == CHRTYPE + + def isblk(self): + 'Return True if it is a block device.' + return self.type == BLKTYPE + + def isfifo(self): + 'Return True if it is a FIFO.' + return self.type == FIFOTYPE + + def issparse(self): + return self.sparse is not None + + def isdev(self): + 'Return True if it is one of character device, block device or FIFO.' + return self.type in (CHRTYPE, BLKTYPE, FIFOTYPE) +# class TarInfo + +class TarFile(object): + """The TarFile Class provides an interface to tar archives. + """ + + debug = 0 # May be set from 0 (no msgs) to 3 (all msgs) + + dereference = False # If true, add content of linked file to the + # tar file, else the link. + + ignore_zeros = False # If true, skips empty or invalid blocks and + # continues processing. + + errorlevel = 1 # If 0, fatal errors only appear in debug + # messages (if debug >= 0). If > 0, errors + # are passed to the caller as exceptions. + + format = DEFAULT_FORMAT # The format to use when creating an archive. + + encoding = ENCODING # Encoding for 8-bit character strings. + + errors = None # Error handler for unicode conversion. + + tarinfo = TarInfo # The default TarInfo class to use. + + fileobject = ExFileObject # The file-object for extractfile(). + + extraction_filter = None # The default filter for extraction. + + def __init__(self, name=None, mode="r", fileobj=None, format=None, + tarinfo=None, dereference=None, ignore_zeros=None, encoding=None, + errors="surrogateescape", pax_headers=None, debug=None, + errorlevel=None, copybufsize=None, stream=False): + """Open an (uncompressed) tar archive 'name'. 'mode' is either 'r' to + read from an existing archive, 'a' to append data to an existing + file or 'w' to create a new file overwriting an existing one. 'mode' + defaults to 'r'. + If 'fileobj' is given, it is used for reading or writing data. If it + can be determined, 'mode' is overridden by 'fileobj's mode. + 'fileobj' is not closed, when TarFile is closed. + """ + modes = {"r": "rb", "a": "r+b", "w": "wb", "x": "xb"} + if mode not in modes: + raise ValueError("mode must be 'r', 'a', 'w' or 'x'") + self.mode = mode + self._mode = modes[mode] + + if not fileobj: + if self.mode == "a" and not os.path.exists(name): + # Create nonexistent files in append mode. + self.mode = "w" + self._mode = "wb" + fileobj = bltn_open(name, self._mode) + self._extfileobj = False + else: + if (name is None and hasattr(fileobj, "name") and + isinstance(fileobj.name, (str, bytes))): + name = fileobj.name + if hasattr(fileobj, "mode"): + self._mode = fileobj.mode + self._extfileobj = True + self.name = os.path.abspath(name) if name else None + self.fileobj = fileobj + + self.stream = stream + + # Init attributes. + if format is not None: + self.format = format + if tarinfo is not None: + self.tarinfo = tarinfo + if dereference is not None: + self.dereference = dereference + if ignore_zeros is not None: + self.ignore_zeros = ignore_zeros + if encoding is not None: + self.encoding = encoding + self.errors = errors + + if pax_headers is not None and self.format == PAX_FORMAT: + self.pax_headers = pax_headers + else: + self.pax_headers = {} + + if debug is not None: + self.debug = debug + if errorlevel is not None: + self.errorlevel = errorlevel + + # Init datastructures. + self.copybufsize = copybufsize + self.closed = False + self.members = [] # list of members as TarInfo objects + self._loaded = False # flag if all members have been read + self.offset = self.fileobj.tell() + # current position in the archive file + self.inodes = {} # dictionary caching the inodes of + # archive members already added + + try: + if self.mode == "r": + self.firstmember = None + self.firstmember = self.next() + + if self.mode == "a": + # Move to the end of the archive, + # before the first empty block. + while True: + self.fileobj.seek(self.offset) + try: + tarinfo = self.tarinfo.fromtarfile(self) + self.members.append(tarinfo) + except EOFHeaderError: + self.fileobj.seek(self.offset) + break + except HeaderError as e: + raise ReadError(str(e)) from None + + if self.mode in ("a", "w", "x"): + self._loaded = True + + if self.pax_headers: + buf = self.tarinfo.create_pax_global_header(self.pax_headers.copy()) + self.fileobj.write(buf) + self.offset += len(buf) + except: + if not self._extfileobj: + self.fileobj.close() + self.closed = True + raise + + #-------------------------------------------------------------------------- + # Below are the classmethods which act as alternate constructors to the + # TarFile class. The open() method is the only one that is needed for + # public use; it is the "super"-constructor and is able to select an + # adequate "sub"-constructor for a particular compression using the mapping + # from OPEN_METH. + # + # This concept allows one to subclass TarFile without losing the comfort of + # the super-constructor. A sub-constructor is registered and made available + # by adding it to the mapping in OPEN_METH. + + @classmethod + def open(cls, name=None, mode="r", fileobj=None, bufsize=RECORDSIZE, **kwargs): + r"""Open a tar archive for reading, writing or appending. Return + an appropriate TarFile class. + + mode: + 'r' or 'r:\*' open for reading with transparent compression + 'r:' open for reading exclusively uncompressed + 'r:gz' open for reading with gzip compression + 'r:bz2' open for reading with bzip2 compression + 'r:xz' open for reading with lzma compression + 'a' or 'a:' open for appending, creating the file if necessary + 'w' or 'w:' open for writing without compression + 'w:gz' open for writing with gzip compression + 'w:bz2' open for writing with bzip2 compression + 'w:xz' open for writing with lzma compression + + 'x' or 'x:' create a tarfile exclusively without compression, raise + an exception if the file is already created + 'x:gz' create a gzip compressed tarfile, raise an exception + if the file is already created + 'x:bz2' create a bzip2 compressed tarfile, raise an exception + if the file is already created + 'x:xz' create an lzma compressed tarfile, raise an exception + if the file is already created + + 'r|\*' open a stream of tar blocks with transparent compression + 'r|' open an uncompressed stream of tar blocks for reading + 'r|gz' open a gzip compressed stream of tar blocks + 'r|bz2' open a bzip2 compressed stream of tar blocks + 'r|xz' open an lzma compressed stream of tar blocks + 'w|' open an uncompressed stream for writing + 'w|gz' open a gzip compressed stream for writing + 'w|bz2' open a bzip2 compressed stream for writing + 'w|xz' open an lzma compressed stream for writing + """ + + if not name and not fileobj: + raise ValueError("nothing to open") + + if mode in ("r", "r:*"): + # Find out which *open() is appropriate for opening the file. + def not_compressed(comptype): + return cls.OPEN_METH[comptype] == 'taropen' + error_msgs = [] + for comptype in sorted(cls.OPEN_METH, key=not_compressed): + func = getattr(cls, cls.OPEN_METH[comptype]) + if fileobj is not None: + saved_pos = fileobj.tell() + try: + return func(name, "r", fileobj, **kwargs) + except (ReadError, CompressionError) as e: + error_msgs.append(f'- method {comptype}: {e!r}') + if fileobj is not None: + fileobj.seek(saved_pos) + continue + error_msgs_summary = '\n'.join(error_msgs) + raise ReadError(f"file could not be opened successfully:\n{error_msgs_summary}") + + elif ":" in mode: + filemode, comptype = mode.split(":", 1) + filemode = filemode or "r" + comptype = comptype or "tar" + + # Select the *open() function according to + # given compression. + if comptype in cls.OPEN_METH: + func = getattr(cls, cls.OPEN_METH[comptype]) + else: + raise CompressionError("unknown compression type %r" % comptype) + return func(name, filemode, fileobj, **kwargs) + + elif "|" in mode: + filemode, comptype = mode.split("|", 1) + filemode = filemode or "r" + comptype = comptype or "tar" + + if filemode not in ("r", "w"): + raise ValueError("mode must be 'r' or 'w'") + + compresslevel = kwargs.pop("compresslevel", 9) + stream = _Stream(name, filemode, comptype, fileobj, bufsize, + compresslevel) + try: + t = cls(name, filemode, stream, **kwargs) + except: + stream.close() + raise + t._extfileobj = False + return t + + elif mode in ("a", "w", "x"): + return cls.taropen(name, mode, fileobj, **kwargs) + + raise ValueError("undiscernible mode") + + @classmethod + def taropen(cls, name, mode="r", fileobj=None, **kwargs): + """Open uncompressed tar archive name for reading or writing. + """ + if mode not in ("r", "a", "w", "x"): + raise ValueError("mode must be 'r', 'a', 'w' or 'x'") + return cls(name, mode, fileobj, **kwargs) + + @classmethod + def gzopen(cls, name, mode="r", fileobj=None, compresslevel=9, **kwargs): + """Open gzip compressed tar archive name for reading or writing. + Appending is not allowed. + """ + if mode not in ("r", "w", "x"): + raise ValueError("mode must be 'r', 'w' or 'x'") + + try: + from gzip import GzipFile + except ImportError: + raise CompressionError("gzip module is not available") from None + + try: + fileobj = GzipFile(name, mode + "b", compresslevel, fileobj) + except OSError as e: + if fileobj is not None and mode == 'r': + raise ReadError("not a gzip file") from e + raise + + try: + t = cls.taropen(name, mode, fileobj, **kwargs) + except OSError as e: + fileobj.close() + if mode == 'r': + raise ReadError("not a gzip file") from e + raise + except: + fileobj.close() + raise + t._extfileobj = False + return t + + @classmethod + def bz2open(cls, name, mode="r", fileobj=None, compresslevel=9, **kwargs): + """Open bzip2 compressed tar archive name for reading or writing. + Appending is not allowed. + """ + if mode not in ("r", "w", "x"): + raise ValueError("mode must be 'r', 'w' or 'x'") + + try: + from bz2 import BZ2File + except ImportError: + raise CompressionError("bz2 module is not available") from None + + fileobj = BZ2File(fileobj or name, mode, compresslevel=compresslevel) + + try: + t = cls.taropen(name, mode, fileobj, **kwargs) + except (OSError, EOFError) as e: + fileobj.close() + if mode == 'r': + raise ReadError("not a bzip2 file") from e + raise + except: + fileobj.close() + raise + t._extfileobj = False + return t + + @classmethod + def xzopen(cls, name, mode="r", fileobj=None, preset=None, **kwargs): + """Open lzma compressed tar archive name for reading or writing. + Appending is not allowed. + """ + if mode not in ("r", "w", "x"): + raise ValueError("mode must be 'r', 'w' or 'x'") + + try: + from lzma import LZMAFile, LZMAError + except ImportError: + raise CompressionError("lzma module is not available") from None + + fileobj = LZMAFile(fileobj or name, mode, preset=preset) + + try: + t = cls.taropen(name, mode, fileobj, **kwargs) + except (LZMAError, EOFError) as e: + fileobj.close() + if mode == 'r': + raise ReadError("not an lzma file") from e + raise + except: + fileobj.close() + raise + t._extfileobj = False + return t + + # All *open() methods are registered here. + OPEN_METH = { + "tar": "taropen", # uncompressed tar + "gz": "gzopen", # gzip compressed tar + "bz2": "bz2open", # bzip2 compressed tar + "xz": "xzopen" # lzma compressed tar + } + + #-------------------------------------------------------------------------- + # The public methods which TarFile provides: + + def close(self): + """Close the TarFile. In write-mode, two finishing zero blocks are + appended to the archive. + """ + if self.closed: + return + + self.closed = True + try: + if self.mode in ("a", "w", "x"): + self.fileobj.write(NUL * (BLOCKSIZE * 2)) + self.offset += (BLOCKSIZE * 2) + # fill up the end with zero-blocks + # (like option -b20 for tar does) + blocks, remainder = divmod(self.offset, RECORDSIZE) + if remainder > 0: + self.fileobj.write(NUL * (RECORDSIZE - remainder)) + finally: + if not self._extfileobj: + self.fileobj.close() + + def getmember(self, name): + """Return a TarInfo object for member 'name'. If 'name' can not be + found in the archive, KeyError is raised. If a member occurs more + than once in the archive, its last occurrence is assumed to be the + most up-to-date version. + """ + tarinfo = self._getmember(name.rstrip('/')) + if tarinfo is None: + raise KeyError("filename %r not found" % name) + return tarinfo + + def getmembers(self): + """Return the members of the archive as a list of TarInfo objects. The + list has the same order as the members in the archive. + """ + self._check() + if not self._loaded: # if we want to obtain a list of + self._load() # all members, we first have to + # scan the whole archive. + return self.members + + def getnames(self): + """Return the members of the archive as a list of their names. It has + the same order as the list returned by getmembers(). + """ + return [tarinfo.name for tarinfo in self.getmembers()] + + def gettarinfo(self, name=None, arcname=None, fileobj=None): + """Create a TarInfo object from the result of os.stat or equivalent + on an existing file. The file is either named by 'name', or + specified as a file object 'fileobj' with a file descriptor. If + given, 'arcname' specifies an alternative name for the file in the + archive, otherwise, the name is taken from the 'name' attribute of + 'fileobj', or the 'name' argument. The name should be a text + string. + """ + self._check("awx") + + # When fileobj is given, replace name by + # fileobj's real name. + if fileobj is not None: + name = fileobj.name + + # Building the name of the member in the archive. + # Backward slashes are converted to forward slashes, + # Absolute paths are turned to relative paths. + if arcname is None: + arcname = name + drv, arcname = os.path.splitdrive(arcname) + arcname = arcname.replace(os.sep, "/") + arcname = arcname.lstrip("/") + + # Now, fill the TarInfo object with + # information specific for the file. + tarinfo = self.tarinfo() + tarinfo._tarfile = self # To be removed in 3.16. + + # Use os.stat or os.lstat, depending on if symlinks shall be resolved. + if fileobj is None: + if not self.dereference: + statres = os.lstat(name) + else: + statres = os.stat(name) + else: + statres = os.fstat(fileobj.fileno()) + linkname = "" + + stmd = statres.st_mode + if stat.S_ISREG(stmd): + inode = (statres.st_ino, statres.st_dev) + if not self.dereference and statres.st_nlink > 1 and \ + inode in self.inodes and arcname != self.inodes[inode]: + # Is it a hardlink to an already + # archived file? + type = LNKTYPE + linkname = self.inodes[inode] + else: + # The inode is added only if its valid. + # For win32 it is always 0. + type = REGTYPE + if inode[0]: + self.inodes[inode] = arcname + elif stat.S_ISDIR(stmd): + type = DIRTYPE + elif stat.S_ISFIFO(stmd): + type = FIFOTYPE + elif stat.S_ISLNK(stmd): + type = SYMTYPE + linkname = os.readlink(name) + elif stat.S_ISCHR(stmd): + type = CHRTYPE + elif stat.S_ISBLK(stmd): + type = BLKTYPE + else: + return None + + # Fill the TarInfo object with all + # information we can get. + tarinfo.name = arcname + tarinfo.mode = stmd + tarinfo.uid = statres.st_uid + tarinfo.gid = statres.st_gid + if type == REGTYPE: + tarinfo.size = statres.st_size + else: + tarinfo.size = 0 + tarinfo.mtime = statres.st_mtime + tarinfo.type = type + tarinfo.linkname = linkname + if pwd: + try: + tarinfo.uname = pwd.getpwuid(tarinfo.uid)[0] + except KeyError: + pass + if grp: + try: + tarinfo.gname = grp.getgrgid(tarinfo.gid)[0] + except KeyError: + pass + + if type in (CHRTYPE, BLKTYPE): + if hasattr(os, "major") and hasattr(os, "minor"): + tarinfo.devmajor = os.major(statres.st_rdev) + tarinfo.devminor = os.minor(statres.st_rdev) + return tarinfo + + def list(self, verbose=True, *, members=None): + """Print a table of contents to sys.stdout. If 'verbose' is False, only + the names of the members are printed. If it is True, an 'ls -l'-like + output is produced. 'members' is optional and must be a subset of the + list returned by getmembers(). + """ + # Convert tarinfo type to stat type. + type2mode = {REGTYPE: stat.S_IFREG, SYMTYPE: stat.S_IFLNK, + FIFOTYPE: stat.S_IFIFO, CHRTYPE: stat.S_IFCHR, + DIRTYPE: stat.S_IFDIR, BLKTYPE: stat.S_IFBLK} + self._check() + + if members is None: + members = self + for tarinfo in members: + if verbose: + if tarinfo.mode is None: + _safe_print("??????????") + else: + modetype = type2mode.get(tarinfo.type, 0) + _safe_print(stat.filemode(modetype | tarinfo.mode)) + _safe_print("%s/%s" % (tarinfo.uname or tarinfo.uid, + tarinfo.gname or tarinfo.gid)) + if tarinfo.ischr() or tarinfo.isblk(): + _safe_print("%10s" % + ("%d,%d" % (tarinfo.devmajor, tarinfo.devminor))) + else: + _safe_print("%10d" % tarinfo.size) + if tarinfo.mtime is None: + _safe_print("????-??-?? ??:??:??") + else: + _safe_print("%d-%02d-%02d %02d:%02d:%02d" \ + % time.localtime(tarinfo.mtime)[:6]) + + _safe_print(tarinfo.name + ("/" if tarinfo.isdir() else "")) + + if verbose: + if tarinfo.issym(): + _safe_print("-> " + tarinfo.linkname) + if tarinfo.islnk(): + _safe_print("link to " + tarinfo.linkname) + print() + + def add(self, name, arcname=None, recursive=True, *, filter=None): + """Add the file 'name' to the archive. 'name' may be any type of file + (directory, fifo, symbolic link, etc.). If given, 'arcname' + specifies an alternative name for the file in the archive. + Directories are added recursively by default. This can be avoided by + setting 'recursive' to False. 'filter' is a function + that expects a TarInfo object argument and returns the changed + TarInfo object, if it returns None the TarInfo object will be + excluded from the archive. + """ + self._check("awx") + + if arcname is None: + arcname = name + + # Skip if somebody tries to archive the archive... + if self.name is not None and os.path.abspath(name) == self.name: + self._dbg(2, "tarfile: Skipped %r" % name) + return + + self._dbg(1, name) + + # Create a TarInfo object from the file. + tarinfo = self.gettarinfo(name, arcname) + + if tarinfo is None: + self._dbg(1, "tarfile: Unsupported type %r" % name) + return + + # Change or exclude the TarInfo object. + if filter is not None: + tarinfo = filter(tarinfo) + if tarinfo is None: + self._dbg(2, "tarfile: Excluded %r" % name) + return + + # Append the tar header and data to the archive. + if tarinfo.isreg(): + with bltn_open(name, "rb") as f: + self.addfile(tarinfo, f) + + elif tarinfo.isdir(): + self.addfile(tarinfo) + if recursive: + for f in sorted(os.listdir(name)): + self.add(os.path.join(name, f), os.path.join(arcname, f), + recursive, filter=filter) + + else: + self.addfile(tarinfo) + + def addfile(self, tarinfo, fileobj=None): + """Add the TarInfo object 'tarinfo' to the archive. If 'tarinfo' represents + a non zero-size regular file, the 'fileobj' argument should be a binary file, + and tarinfo.size bytes are read from it and added to the archive. + You can create TarInfo objects directly, or by using gettarinfo(). + """ + self._check("awx") + + if fileobj is None and tarinfo.isreg() and tarinfo.size != 0: + raise ValueError("fileobj not provided for non zero-size regular file") + + tarinfo = copy.copy(tarinfo) + + buf = tarinfo.tobuf(self.format, self.encoding, self.errors) + self.fileobj.write(buf) + self.offset += len(buf) + bufsize=self.copybufsize + # If there's data to follow, append it. + if fileobj is not None: + copyfileobj(fileobj, self.fileobj, tarinfo.size, bufsize=bufsize) + blocks, remainder = divmod(tarinfo.size, BLOCKSIZE) + if remainder > 0: + self.fileobj.write(NUL * (BLOCKSIZE - remainder)) + blocks += 1 + self.offset += blocks * BLOCKSIZE + + self.members.append(tarinfo) + + def _get_filter_function(self, filter): + if filter is None: + filter = self.extraction_filter + if filter is None: + import warnings + warnings.warn( + 'Python 3.14 will, by default, filter extracted tar ' + + 'archives and reject files or modify their metadata. ' + + 'Use the filter argument to control this behavior.', + DeprecationWarning, stacklevel=3) + return fully_trusted_filter + if isinstance(filter, str): + raise TypeError( + 'String names are not supported for ' + + 'TarFile.extraction_filter. Use a function such as ' + + 'tarfile.data_filter directly.') + return filter + if callable(filter): + return filter + try: + return _NAMED_FILTERS[filter] + except KeyError: + raise ValueError(f"filter {filter!r} not found") from None + + def extractall(self, path=".", members=None, *, numeric_owner=False, + filter=None): + """Extract all members from the archive to the current working + directory and set owner, modification time and permissions on + directories afterwards. 'path' specifies a different directory + to extract to. 'members' is optional and must be a subset of the + list returned by getmembers(). If 'numeric_owner' is True, only + the numbers for user/group names are used and not the names. + + The 'filter' function will be called on each member just + before extraction. + It can return a changed TarInfo or None to skip the member. + String names of common filters are accepted. + """ + directories = [] + + filter_function = self._get_filter_function(filter) + if members is None: + members = self + + for member in members: + tarinfo = self._get_extract_tarinfo(member, filter_function, path) + if tarinfo is None: + continue + if tarinfo.isdir(): + # For directories, delay setting attributes until later, + # since permissions can interfere with extraction and + # extracting contents can reset mtime. + directories.append(tarinfo) + self._extract_one(tarinfo, path, set_attrs=not tarinfo.isdir(), + numeric_owner=numeric_owner) + + # Reverse sort directories. + directories.sort(key=lambda a: a.name, reverse=True) + + # Set correct owner, mtime and filemode on directories. + for tarinfo in directories: + dirpath = os.path.join(path, tarinfo.name) + try: + self.chown(tarinfo, dirpath, numeric_owner=numeric_owner) + self.utime(tarinfo, dirpath) + self.chmod(tarinfo, dirpath) + except ExtractError as e: + self._handle_nonfatal_error(e) + + def extract(self, member, path="", set_attrs=True, *, numeric_owner=False, + filter=None): + """Extract a member from the archive to the current working directory, + using its full name. Its file information is extracted as accurately + as possible. 'member' may be a filename or a TarInfo object. You can + specify a different directory using 'path'. File attributes (owner, + mtime, mode) are set unless 'set_attrs' is False. If 'numeric_owner' + is True, only the numbers for user/group names are used and not + the names. + + The 'filter' function will be called before extraction. + It can return a changed TarInfo or None to skip the member. + String names of common filters are accepted. + """ + filter_function = self._get_filter_function(filter) + tarinfo = self._get_extract_tarinfo(member, filter_function, path) + if tarinfo is not None: + self._extract_one(tarinfo, path, set_attrs, numeric_owner) + + def _get_extract_tarinfo(self, member, filter_function, path): + """Get filtered TarInfo (or None) from member, which might be a str""" + if isinstance(member, str): + tarinfo = self.getmember(member) + else: + tarinfo = member + + unfiltered = tarinfo + try: + tarinfo = filter_function(tarinfo, path) + except (OSError, FilterError) as e: + self._handle_fatal_error(e) + except ExtractError as e: + self._handle_nonfatal_error(e) + if tarinfo is None: + self._dbg(2, "tarfile: Excluded %r" % unfiltered.name) + return None + # Prepare the link target for makelink(). + if tarinfo.islnk(): + tarinfo = copy.copy(tarinfo) + tarinfo._link_target = os.path.join(path, tarinfo.linkname) + return tarinfo + + def _extract_one(self, tarinfo, path, set_attrs, numeric_owner): + """Extract from filtered tarinfo to disk""" + self._check("r") + + try: + self._extract_member(tarinfo, os.path.join(path, tarinfo.name), + set_attrs=set_attrs, + numeric_owner=numeric_owner) + except OSError as e: + self._handle_fatal_error(e) + except ExtractError as e: + self._handle_nonfatal_error(e) + + def _handle_nonfatal_error(self, e): + """Handle non-fatal error (ExtractError) according to errorlevel""" + if self.errorlevel > 1: + raise + else: + self._dbg(1, "tarfile: %s" % e) + + def _handle_fatal_error(self, e): + """Handle "fatal" error according to self.errorlevel""" + if self.errorlevel > 0: + raise + elif isinstance(e, OSError): + if e.filename is None: + self._dbg(1, "tarfile: %s" % e.strerror) + else: + self._dbg(1, "tarfile: %s %r" % (e.strerror, e.filename)) + else: + self._dbg(1, "tarfile: %s %s" % (type(e).__name__, e)) + + def extractfile(self, member): + """Extract a member from the archive as a file object. 'member' may be + a filename or a TarInfo object. If 'member' is a regular file or + a link, an io.BufferedReader object is returned. For all other + existing members, None is returned. If 'member' does not appear + in the archive, KeyError is raised. + """ + self._check("r") + + if isinstance(member, str): + tarinfo = self.getmember(member) + else: + tarinfo = member + + if tarinfo.isreg() or tarinfo.type not in SUPPORTED_TYPES: + # Members with unknown types are treated as regular files. + return self.fileobject(self, tarinfo) + + elif tarinfo.islnk() or tarinfo.issym(): + if isinstance(self.fileobj, _Stream): + # A small but ugly workaround for the case that someone tries + # to extract a (sym)link as a file-object from a non-seekable + # stream of tar blocks. + raise StreamError("cannot extract (sym)link as file object") + else: + # A (sym)link's file object is its target's file object. + return self.extractfile(self._find_link_target(tarinfo)) + else: + # If there's no data associated with the member (directory, chrdev, + # blkdev, etc.), return None instead of a file object. + return None + + def _extract_member(self, tarinfo, targetpath, set_attrs=True, + numeric_owner=False): + """Extract the TarInfo object tarinfo to a physical + file called targetpath. + """ + # Fetch the TarInfo object for the given name + # and build the destination pathname, replacing + # forward slashes to platform specific separators. + targetpath = targetpath.rstrip("/") + targetpath = targetpath.replace("/", os.sep) + + # Create all upper directories. + upperdirs = os.path.dirname(targetpath) + if upperdirs and not os.path.exists(upperdirs): + # Create directories that are not part of the archive with + # default permissions. + os.makedirs(upperdirs, exist_ok=True) + + if tarinfo.islnk() or tarinfo.issym(): + self._dbg(1, "%s -> %s" % (tarinfo.name, tarinfo.linkname)) + else: + self._dbg(1, tarinfo.name) + + if tarinfo.isreg(): + self.makefile(tarinfo, targetpath) + elif tarinfo.isdir(): + self.makedir(tarinfo, targetpath) + elif tarinfo.isfifo(): + self.makefifo(tarinfo, targetpath) + elif tarinfo.ischr() or tarinfo.isblk(): + self.makedev(tarinfo, targetpath) + elif tarinfo.islnk() or tarinfo.issym(): + self.makelink(tarinfo, targetpath) + elif tarinfo.type not in SUPPORTED_TYPES: + self.makeunknown(tarinfo, targetpath) + else: + self.makefile(tarinfo, targetpath) + + if set_attrs: + self.chown(tarinfo, targetpath, numeric_owner) + if not tarinfo.issym(): + self.chmod(tarinfo, targetpath) + self.utime(tarinfo, targetpath) + + #-------------------------------------------------------------------------- + # Below are the different file methods. They are called via + # _extract_member() when extract() is called. They can be replaced in a + # subclass to implement other functionality. + + def makedir(self, tarinfo, targetpath): + """Make a directory called targetpath. + """ + try: + if tarinfo.mode is None: + # Use the system's default mode + os.mkdir(targetpath) + else: + # Use a safe mode for the directory, the real mode is set + # later in _extract_member(). + os.mkdir(targetpath, 0o700) + except FileExistsError: + if not os.path.isdir(targetpath): + raise + + def makefile(self, tarinfo, targetpath): + """Make a file called targetpath. + """ + source = self.fileobj + source.seek(tarinfo.offset_data) + bufsize = self.copybufsize + with bltn_open(targetpath, "wb") as target: + if tarinfo.sparse is not None: + for offset, size in tarinfo.sparse: + target.seek(offset) + copyfileobj(source, target, size, ReadError, bufsize) + target.seek(tarinfo.size) + target.truncate() + else: + copyfileobj(source, target, tarinfo.size, ReadError, bufsize) + + def makeunknown(self, tarinfo, targetpath): + """Make a file from a TarInfo object with an unknown type + at targetpath. + """ + self.makefile(tarinfo, targetpath) + self._dbg(1, "tarfile: Unknown file type %r, " \ + "extracted as regular file." % tarinfo.type) + + def makefifo(self, tarinfo, targetpath): + """Make a fifo called targetpath. + """ + if hasattr(os, "mkfifo"): + os.mkfifo(targetpath) + else: + raise ExtractError("fifo not supported by system") + + def makedev(self, tarinfo, targetpath): + """Make a character or block device called targetpath. + """ + if not hasattr(os, "mknod") or not hasattr(os, "makedev"): + raise ExtractError("special devices not supported by system") + + mode = tarinfo.mode + if mode is None: + # Use mknod's default + mode = 0o600 + if tarinfo.isblk(): + mode |= stat.S_IFBLK + else: + mode |= stat.S_IFCHR + + os.mknod(targetpath, mode, + os.makedev(tarinfo.devmajor, tarinfo.devminor)) + + def makelink(self, tarinfo, targetpath): + """Make a (symbolic) link called targetpath. If it cannot be created + (platform limitation), we try to make a copy of the referenced file + instead of a link. + """ + try: + # For systems that support symbolic and hard links. + if tarinfo.issym(): + if os.path.lexists(targetpath): + # Avoid FileExistsError on following os.symlink. + os.unlink(targetpath) + os.symlink(tarinfo.linkname, targetpath) + else: + if os.path.exists(tarinfo._link_target): + os.link(tarinfo._link_target, targetpath) + else: + self._extract_member(self._find_link_target(tarinfo), + targetpath) + except symlink_exception: + try: + self._extract_member(self._find_link_target(tarinfo), + targetpath) + except KeyError: + raise ExtractError("unable to resolve link inside archive") from None + + def chown(self, tarinfo, targetpath, numeric_owner): + """Set owner of targetpath according to tarinfo. If numeric_owner + is True, use .gid/.uid instead of .gname/.uname. If numeric_owner + is False, fall back to .gid/.uid when the search based on name + fails. + """ + if hasattr(os, "geteuid") and os.geteuid() == 0: + # We have to be root to do so. + g = tarinfo.gid + u = tarinfo.uid + if not numeric_owner: + try: + if grp and tarinfo.gname: + g = grp.getgrnam(tarinfo.gname)[2] + except KeyError: + pass + try: + if pwd and tarinfo.uname: + u = pwd.getpwnam(tarinfo.uname)[2] + except KeyError: + pass + if g is None: + g = -1 + if u is None: + u = -1 + try: + if tarinfo.issym() and hasattr(os, "lchown"): + os.lchown(targetpath, u, g) + else: + os.chown(targetpath, u, g) + except (OSError, OverflowError) as e: + # OverflowError can be raised if an ID doesn't fit in 'id_t' + raise ExtractError("could not change owner") from e + + def chmod(self, tarinfo, targetpath): + """Set file permissions of targetpath according to tarinfo. + """ + if tarinfo.mode is None: + return + try: + os.chmod(targetpath, tarinfo.mode) + except OSError as e: + raise ExtractError("could not change mode") from e + + def utime(self, tarinfo, targetpath): + """Set modification time of targetpath according to tarinfo. + """ + mtime = tarinfo.mtime + if mtime is None: + return + if not hasattr(os, 'utime'): + return + try: + os.utime(targetpath, (mtime, mtime)) + except OSError as e: + raise ExtractError("could not change modification time") from e + + #-------------------------------------------------------------------------- + def next(self): + """Return the next member of the archive as a TarInfo object, when + TarFile is opened for reading. Return None if there is no more + available. + """ + self._check("ra") + if self.firstmember is not None: + m = self.firstmember + self.firstmember = None + return m + + # Advance the file pointer. + if self.offset != self.fileobj.tell(): + if self.offset == 0: + return None + self.fileobj.seek(self.offset - 1) + if not self.fileobj.read(1): + raise ReadError("unexpected end of data") + + # Read the next block. + tarinfo = None + while True: + try: + tarinfo = self.tarinfo.fromtarfile(self) + except EOFHeaderError as e: + if self.ignore_zeros: + self._dbg(2, "0x%X: %s" % (self.offset, e)) + self.offset += BLOCKSIZE + continue + except InvalidHeaderError as e: + if self.ignore_zeros: + self._dbg(2, "0x%X: %s" % (self.offset, e)) + self.offset += BLOCKSIZE + continue + elif self.offset == 0: + raise ReadError(str(e)) from None + except EmptyHeaderError: + if self.offset == 0: + raise ReadError("empty file") from None + except TruncatedHeaderError as e: + if self.offset == 0: + raise ReadError(str(e)) from None + except SubsequentHeaderError as e: + raise ReadError(str(e)) from None + except Exception as e: + try: + import zlib + if isinstance(e, zlib.error): + raise ReadError(f'zlib error: {e}') from None + else: + raise e + except ImportError: + raise e + break + + if tarinfo is not None: + # if streaming the file we do not want to cache the tarinfo + if not self.stream: + self.members.append(tarinfo) + else: + self._loaded = True + + return tarinfo + + #-------------------------------------------------------------------------- + # Little helper methods: + + def _getmember(self, name, tarinfo=None, normalize=False): + """Find an archive member by name from bottom to top. + If tarinfo is given, it is used as the starting point. + """ + # Ensure that all members have been loaded. + members = self.getmembers() + + # Limit the member search list up to tarinfo. + skipping = False + if tarinfo is not None: + try: + index = members.index(tarinfo) + except ValueError: + # The given starting point might be a (modified) copy. + # We'll later skip members until we find an equivalent. + skipping = True + else: + # Happy fast path + members = members[:index] + + if normalize: + name = os.path.normpath(name) + + for member in reversed(members): + if skipping: + if tarinfo.offset == member.offset: + skipping = False + continue + if normalize: + member_name = os.path.normpath(member.name) + else: + member_name = member.name + + if name == member_name: + return member + + if skipping: + # Starting point was not found + raise ValueError(tarinfo) + + def _load(self): + """Read through the entire archive file and look for readable + members. This should not run if the file is set to stream. + """ + if not self.stream: + while self.next() is not None: + pass + self._loaded = True + + def _check(self, mode=None): + """Check if TarFile is still open, and if the operation's mode + corresponds to TarFile's mode. + """ + if self.closed: + raise OSError("%s is closed" % self.__class__.__name__) + if mode is not None and self.mode not in mode: + raise OSError("bad operation for mode %r" % self.mode) + + def _find_link_target(self, tarinfo): + """Find the target member of a symlink or hardlink member in the + archive. + """ + if tarinfo.issym(): + # Always search the entire archive. + linkname = "/".join(filter(None, (os.path.dirname(tarinfo.name), tarinfo.linkname))) + limit = None + else: + # Search the archive before the link, because a hard link is + # just a reference to an already archived file. + linkname = tarinfo.linkname + limit = tarinfo + + member = self._getmember(linkname, tarinfo=limit, normalize=True) + if member is None: + raise KeyError("linkname %r not found" % linkname) + return member + + def __iter__(self): + """Provide an iterator object. + """ + if self._loaded: + yield from self.members + return + + # Yield items using TarFile's next() method. + # When all members have been read, set TarFile as _loaded. + index = 0 + # Fix for SF #1100429: Under rare circumstances it can + # happen that getmembers() is called during iteration, + # which will have already exhausted the next() method. + if self.firstmember is not None: + tarinfo = self.next() + index += 1 + yield tarinfo + + while True: + if index < len(self.members): + tarinfo = self.members[index] + elif not self._loaded: + tarinfo = self.next() + if not tarinfo: + self._loaded = True + return + else: + return + index += 1 + yield tarinfo + + def _dbg(self, level, msg): + """Write debugging output to sys.stderr. + """ + if level <= self.debug: + print(msg, file=sys.stderr) + + def __enter__(self): + self._check() + return self + + def __exit__(self, type, value, traceback): + if type is None: + self.close() + else: + # An exception occurred. We must not call close() because + # it would try to write end-of-archive blocks and padding. + if not self._extfileobj: + self.fileobj.close() + self.closed = True + +#-------------------- +# exported functions +#-------------------- + +def is_tarfile(name): + """Return True if name points to a tar archive that we + are able to handle, else return False. + + 'name' should be a string, file, or file-like object. + """ + try: + if hasattr(name, "read"): + pos = name.tell() + t = open(fileobj=name) + name.seek(pos) + else: + t = open(name) + t.close() + return True + except TarError: + return False + +open = TarFile.open + + +def main(): + import argparse + + description = 'A simple command-line interface for tarfile module.' + parser = argparse.ArgumentParser(description=description) + parser.add_argument('-v', '--verbose', action='store_true', default=False, + help='Verbose output') + parser.add_argument('--filter', metavar='', + choices=_NAMED_FILTERS, + help='Filter for extraction') + + group = parser.add_mutually_exclusive_group(required=True) + group.add_argument('-l', '--list', metavar='', + help='Show listing of a tarfile') + group.add_argument('-e', '--extract', nargs='+', + metavar=('', ''), + help='Extract tarfile into target dir') + group.add_argument('-c', '--create', nargs='+', + metavar=('', ''), + help='Create tarfile from sources') + group.add_argument('-t', '--test', metavar='', + help='Test if a tarfile is valid') + + args = parser.parse_args() + + if args.filter and args.extract is None: + parser.exit(1, '--filter is only valid for extraction\n') + + if args.test is not None: + src = args.test + if is_tarfile(src): + with open(src, 'r') as tar: + tar.getmembers() + print(tar.getmembers(), file=sys.stderr) + if args.verbose: + print('{!r} is a tar archive.'.format(src)) + else: + parser.exit(1, '{!r} is not a tar archive.\n'.format(src)) + + elif args.list is not None: + src = args.list + if is_tarfile(src): + with TarFile.open(src, 'r:*') as tf: + tf.list(verbose=args.verbose) + else: + parser.exit(1, '{!r} is not a tar archive.\n'.format(src)) + + elif args.extract is not None: + if len(args.extract) == 1: + src = args.extract[0] + curdir = os.curdir + elif len(args.extract) == 2: + src, curdir = args.extract + else: + parser.exit(1, parser.format_help()) + + if is_tarfile(src): + with TarFile.open(src, 'r:*') as tf: + tf.extractall(path=curdir, filter=args.filter) + if args.verbose: + if curdir == '.': + msg = '{!r} file is extracted.'.format(src) + else: + msg = ('{!r} file is extracted ' + 'into {!r} directory.').format(src, curdir) + print(msg) + else: + parser.exit(1, '{!r} is not a tar archive.\n'.format(src)) + + elif args.create is not None: + tar_name = args.create.pop(0) + _, ext = os.path.splitext(tar_name) + compressions = { + # gz + '.gz': 'gz', + '.tgz': 'gz', + # xz + '.xz': 'xz', + '.txz': 'xz', + # bz2 + '.bz2': 'bz2', + '.tbz': 'bz2', + '.tbz2': 'bz2', + '.tb2': 'bz2', + } + tar_mode = 'w:' + compressions[ext] if ext in compressions else 'w' + tar_files = args.create + + with TarFile.open(tar_name, tar_mode) as tf: + for file_name in tar_files: + tf.add(file_name) + + if args.verbose: + print('{!r} file created.'.format(tar_name)) + +if __name__ == '__main__': + main() diff --git a/setuptools/_vendor/backports/tarfile/__main__.py b/setuptools/_vendor/backports/tarfile/__main__.py new file mode 100644 index 0000000000..daf5509086 --- /dev/null +++ b/setuptools/_vendor/backports/tarfile/__main__.py @@ -0,0 +1,5 @@ +from . import main + + +if __name__ == '__main__': + main() diff --git a/setuptools/_vendor/backports/tarfile/compat/__init__.py b/setuptools/_vendor/backports/tarfile/compat/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/setuptools/_vendor/backports/tarfile/compat/py38.py b/setuptools/_vendor/backports/tarfile/compat/py38.py new file mode 100644 index 0000000000..20fbbfc1c0 --- /dev/null +++ b/setuptools/_vendor/backports/tarfile/compat/py38.py @@ -0,0 +1,24 @@ +import sys + + +if sys.version_info < (3, 9): + + def removesuffix(self, suffix): + # suffix='' should not call self[:-0]. + if suffix and self.endswith(suffix): + return self[: -len(suffix)] + else: + return self[:] + + def removeprefix(self, prefix): + if self.startswith(prefix): + return self[len(prefix) :] + else: + return self[:] +else: + + def removesuffix(self, suffix): + return self.removesuffix(suffix) + + def removeprefix(self, prefix): + return self.removeprefix(prefix) diff --git a/setuptools/_vendor/importlib_metadata-8.0.0.dist-info/INSTALLER b/setuptools/_vendor/importlib_metadata-8.0.0.dist-info/INSTALLER new file mode 100644 index 0000000000..a1b589e38a --- /dev/null +++ b/setuptools/_vendor/importlib_metadata-8.0.0.dist-info/INSTALLER @@ -0,0 +1 @@ +pip diff --git a/setuptools/_vendor/importlib_metadata-8.0.0.dist-info/LICENSE b/setuptools/_vendor/importlib_metadata-8.0.0.dist-info/LICENSE new file mode 100644 index 0000000000..d645695673 --- /dev/null +++ b/setuptools/_vendor/importlib_metadata-8.0.0.dist-info/LICENSE @@ -0,0 +1,202 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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Coombs" +Project-URL: Source, https://github.com/python/importlib_metadata +Classifier: Development Status :: 5 - Production/Stable +Classifier: Intended Audience :: Developers +Classifier: License :: OSI Approved :: Apache Software License +Classifier: Programming Language :: Python :: 3 +Classifier: Programming Language :: Python :: 3 :: Only +Requires-Python: >=3.8 +Description-Content-Type: text/x-rst +License-File: LICENSE +Requires-Dist: zipp >=0.5 +Requires-Dist: typing-extensions >=3.6.4 ; python_version < "3.8" +Provides-Extra: doc +Requires-Dist: sphinx >=3.5 ; extra == 'doc' +Requires-Dist: jaraco.packaging >=9.3 ; extra == 'doc' +Requires-Dist: rst.linker >=1.9 ; extra == 'doc' +Requires-Dist: furo ; extra == 'doc' +Requires-Dist: sphinx-lint ; extra == 'doc' +Requires-Dist: jaraco.tidelift >=1.4 ; extra == 'doc' +Provides-Extra: perf +Requires-Dist: ipython ; extra == 'perf' +Provides-Extra: test +Requires-Dist: pytest !=8.1.*,>=6 ; extra == 'test' +Requires-Dist: pytest-checkdocs >=2.4 ; extra == 'test' +Requires-Dist: pytest-cov ; extra == 'test' +Requires-Dist: pytest-mypy ; extra == 'test' +Requires-Dist: pytest-enabler >=2.2 ; extra == 'test' +Requires-Dist: pytest-ruff >=0.2.1 ; extra == 'test' +Requires-Dist: packaging ; extra == 'test' +Requires-Dist: pyfakefs ; extra == 'test' +Requires-Dist: flufl.flake8 ; extra == 'test' +Requires-Dist: pytest-perf >=0.9.2 ; extra == 'test' +Requires-Dist: jaraco.test >=5.4 ; extra == 'test' +Requires-Dist: importlib-resources >=1.3 ; (python_version < "3.9") and extra == 'test' + +.. image:: https://img.shields.io/pypi/v/importlib_metadata.svg + :target: https://pypi.org/project/importlib_metadata + +.. image:: https://img.shields.io/pypi/pyversions/importlib_metadata.svg + +.. image:: https://github.com/python/importlib_metadata/actions/workflows/main.yml/badge.svg + :target: https://github.com/python/importlib_metadata/actions?query=workflow%3A%22tests%22 + :alt: tests + +.. image:: https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/charliermarsh/ruff/main/assets/badge/v2.json + :target: https://github.com/astral-sh/ruff + :alt: Ruff + +.. image:: https://readthedocs.org/projects/importlib-metadata/badge/?version=latest + :target: https://importlib-metadata.readthedocs.io/en/latest/?badge=latest + +.. image:: https://img.shields.io/badge/skeleton-2024-informational + :target: https://blog.jaraco.com/skeleton + +.. image:: https://tidelift.com/badges/package/pypi/importlib-metadata + :target: https://tidelift.com/subscription/pkg/pypi-importlib-metadata?utm_source=pypi-importlib-metadata&utm_medium=readme + +Library to access the metadata for a Python package. + +This package supplies third-party access to the functionality of +`importlib.metadata `_ +including improvements added to subsequent Python versions. + + +Compatibility +============= + +New features are introduced in this third-party library and later merged +into CPython. The following table indicates which versions of this library +were contributed to different versions in the standard library: + +.. list-table:: + :header-rows: 1 + + * - importlib_metadata + - stdlib + * - 7.0 + - 3.13 + * - 6.5 + - 3.12 + * - 4.13 + - 3.11 + * - 4.6 + - 3.10 + * - 1.4 + - 3.8 + + +Usage +===== + +See the `online documentation `_ +for usage details. + +`Finder authors +`_ can +also add support for custom package installers. See the above documentation +for details. + + +Caveats +======= + +This project primarily supports third-party packages installed by PyPA +tools (or other conforming packages). It does not support: + +- Packages in the stdlib. +- Packages installed without metadata. + +Project details +=============== + + * Project home: https://github.com/python/importlib_metadata + * Report bugs at: https://github.com/python/importlib_metadata/issues + * Code hosting: https://github.com/python/importlib_metadata + * Documentation: https://importlib-metadata.readthedocs.io/ + +For Enterprise +============== + +Available as part of the Tidelift Subscription. + +This project and the maintainers of thousands of other packages are working with Tidelift to deliver one enterprise subscription that covers all of the open source you use. + +`Learn more `_. diff --git a/setuptools/_vendor/importlib_metadata-8.0.0.dist-info/RECORD b/setuptools/_vendor/importlib_metadata-8.0.0.dist-info/RECORD new file mode 100644 index 0000000000..07b7dc51db --- /dev/null +++ b/setuptools/_vendor/importlib_metadata-8.0.0.dist-info/RECORD @@ -0,0 +1,32 @@ 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0000000000..edf4ec7c70 --- /dev/null +++ b/setuptools/_vendor/importlib_metadata-8.0.0.dist-info/WHEEL @@ -0,0 +1,5 @@ +Wheel-Version: 1.0 +Generator: setuptools (70.1.1) +Root-Is-Purelib: true +Tag: py3-none-any + diff --git a/setuptools/_vendor/importlib_metadata-8.0.0.dist-info/top_level.txt b/setuptools/_vendor/importlib_metadata-8.0.0.dist-info/top_level.txt new file mode 100644 index 0000000000..bbb07547a1 --- /dev/null +++ b/setuptools/_vendor/importlib_metadata-8.0.0.dist-info/top_level.txt @@ -0,0 +1 @@ +importlib_metadata diff --git a/setuptools/_vendor/importlib_metadata/__init__.py b/setuptools/_vendor/importlib_metadata/__init__.py new file mode 100644 index 0000000000..ed4813551a --- /dev/null +++ b/setuptools/_vendor/importlib_metadata/__init__.py @@ -0,0 +1,1083 @@ +from __future__ import annotations + +import os +import re +import abc +import sys +import json +import zipp +import email +import types +import inspect +import pathlib +import operator +import textwrap +import functools +import itertools +import posixpath +import collections + +from . import _meta +from .compat import py39, py311 +from ._collections import FreezableDefaultDict, Pair +from ._compat import ( + NullFinder, + install, +) +from ._functools import method_cache, pass_none +from ._itertools import always_iterable, unique_everseen +from ._meta import PackageMetadata, SimplePath + +from contextlib import suppress +from importlib import import_module +from importlib.abc import MetaPathFinder +from itertools import starmap +from typing import Any, Iterable, List, Mapping, Match, Optional, Set, cast + +__all__ = [ + 'Distribution', + 'DistributionFinder', + 'PackageMetadata', + 'PackageNotFoundError', + 'distribution', + 'distributions', + 'entry_points', + 'files', + 'metadata', + 'packages_distributions', + 'requires', + 'version', +] + + +class PackageNotFoundError(ModuleNotFoundError): + """The package was not found.""" + + def __str__(self) -> str: + return f"No package metadata was found for {self.name}" + + @property + def name(self) -> str: # type: ignore[override] + (name,) = self.args + return name + + +class Sectioned: + """ + A simple entry point config parser for performance + + >>> for item in Sectioned.read(Sectioned._sample): + ... print(item) + Pair(name='sec1', value='# comments ignored') + Pair(name='sec1', value='a = 1') + Pair(name='sec1', value='b = 2') + Pair(name='sec2', value='a = 2') + + >>> res = Sectioned.section_pairs(Sectioned._sample) + >>> item = next(res) + >>> item.name + 'sec1' + >>> item.value + Pair(name='a', value='1') + >>> item = next(res) + >>> item.value + Pair(name='b', value='2') + >>> item = next(res) + >>> item.name + 'sec2' + >>> item.value + Pair(name='a', value='2') + >>> list(res) + [] + """ + + _sample = textwrap.dedent( + """ + [sec1] + # comments ignored + a = 1 + b = 2 + + [sec2] + a = 2 + """ + ).lstrip() + + @classmethod + def section_pairs(cls, text): + return ( + section._replace(value=Pair.parse(section.value)) + for section in cls.read(text, filter_=cls.valid) + if section.name is not None + ) + + @staticmethod + def read(text, filter_=None): + lines = filter(filter_, map(str.strip, text.splitlines())) + name = None + for value in lines: + section_match = value.startswith('[') and value.endswith(']') + if section_match: + name = value.strip('[]') + continue + yield Pair(name, value) + + @staticmethod + def valid(line: str): + return line and not line.startswith('#') + + +class EntryPoint: + """An entry point as defined by Python packaging conventions. + + See `the packaging docs on entry points + `_ + for more information. + + >>> ep = EntryPoint( + ... name=None, group=None, value='package.module:attr [extra1, extra2]') + >>> ep.module + 'package.module' + >>> ep.attr + 'attr' + >>> ep.extras + ['extra1', 'extra2'] + """ + + pattern = re.compile( + r'(?P[\w.]+)\s*' + r'(:\s*(?P[\w.]+)\s*)?' + r'((?P\[.*\])\s*)?$' + ) + """ + A regular expression describing the syntax for an entry point, + which might look like: + + - module + - package.module + - package.module:attribute + - package.module:object.attribute + - package.module:attr [extra1, extra2] + + Other combinations are possible as well. + + The expression is lenient about whitespace around the ':', + following the attr, and following any extras. + """ + + name: str + value: str + group: str + + dist: Optional[Distribution] = None + + def __init__(self, name: str, value: str, group: str) -> None: + vars(self).update(name=name, value=value, group=group) + + def load(self) -> Any: + """Load the entry point from its definition. If only a module + is indicated by the value, return that module. Otherwise, + return the named object. + """ + match = cast(Match, self.pattern.match(self.value)) + module = import_module(match.group('module')) + attrs = filter(None, (match.group('attr') or '').split('.')) + return functools.reduce(getattr, attrs, module) + + @property + def module(self) -> str: + match = self.pattern.match(self.value) + assert match is not None + return match.group('module') + + @property + def attr(self) -> str: + match = self.pattern.match(self.value) + assert match is not None + return match.group('attr') + + @property + def extras(self) -> List[str]: + match = self.pattern.match(self.value) + assert match is not None + return re.findall(r'\w+', match.group('extras') or '') + + def _for(self, dist): + vars(self).update(dist=dist) + return self + + def matches(self, **params): + """ + EntryPoint matches the given parameters. + + >>> ep = EntryPoint(group='foo', name='bar', value='bing:bong [extra1, extra2]') + >>> ep.matches(group='foo') + True + >>> ep.matches(name='bar', value='bing:bong [extra1, extra2]') + True + >>> ep.matches(group='foo', name='other') + False + >>> ep.matches() + True + >>> ep.matches(extras=['extra1', 'extra2']) + True + >>> ep.matches(module='bing') + True + >>> ep.matches(attr='bong') + True + """ + attrs = (getattr(self, param) for param in params) + return all(map(operator.eq, params.values(), attrs)) + + def _key(self): + return self.name, self.value, self.group + + def __lt__(self, other): + return self._key() < other._key() + + def __eq__(self, other): + return self._key() == other._key() + + def __setattr__(self, name, value): + raise AttributeError("EntryPoint objects are immutable.") + + def __repr__(self): + return ( + f'EntryPoint(name={self.name!r}, value={self.value!r}, ' + f'group={self.group!r})' + ) + + def __hash__(self) -> int: + return hash(self._key()) + + +class EntryPoints(tuple): + """ + An immutable collection of selectable EntryPoint objects. + """ + + __slots__ = () + + def __getitem__(self, name: str) -> EntryPoint: # type: ignore[override] + """ + Get the EntryPoint in self matching name. + """ + try: + return next(iter(self.select(name=name))) + except StopIteration: + raise KeyError(name) + + def __repr__(self): + """ + Repr with classname and tuple constructor to + signal that we deviate from regular tuple behavior. + """ + return '%s(%r)' % (self.__class__.__name__, tuple(self)) + + def select(self, **params) -> EntryPoints: + """ + Select entry points from self that match the + given parameters (typically group and/or name). + """ + return EntryPoints(ep for ep in self if py39.ep_matches(ep, **params)) + + @property + def names(self) -> Set[str]: + """ + Return the set of all names of all entry points. + """ + return {ep.name for ep in self} + + @property + def groups(self) -> Set[str]: + """ + Return the set of all groups of all entry points. + """ + return {ep.group for ep in self} + + @classmethod + def _from_text_for(cls, text, dist): + return cls(ep._for(dist) for ep in cls._from_text(text)) + + @staticmethod + def _from_text(text): + return ( + EntryPoint(name=item.value.name, value=item.value.value, group=item.name) + for item in Sectioned.section_pairs(text or '') + ) + + +class PackagePath(pathlib.PurePosixPath): + """A reference to a path in a package""" + + hash: Optional[FileHash] + size: int + dist: Distribution + + def read_text(self, encoding: str = 'utf-8') -> str: # type: ignore[override] + return self.locate().read_text(encoding=encoding) + + def read_binary(self) -> bytes: + return self.locate().read_bytes() + + def locate(self) -> SimplePath: + """Return a path-like object for this path""" + return self.dist.locate_file(self) + + +class FileHash: + def __init__(self, spec: str) -> None: + self.mode, _, self.value = spec.partition('=') + + def __repr__(self) -> str: + return f'' + + +class Distribution(metaclass=abc.ABCMeta): + """ + An abstract Python distribution package. + + Custom providers may derive from this class and define + the abstract methods to provide a concrete implementation + for their environment. Some providers may opt to override + the default implementation of some properties to bypass + the file-reading mechanism. + """ + + @abc.abstractmethod + def read_text(self, filename) -> Optional[str]: + """Attempt to load metadata file given by the name. + + Python distribution metadata is organized by blobs of text + typically represented as "files" in the metadata directory + (e.g. package-1.0.dist-info). These files include things + like: + + - METADATA: The distribution metadata including fields + like Name and Version and Description. + - entry_points.txt: A series of entry points as defined in + `the entry points spec `_. + - RECORD: A record of files according to + `this recording spec `_. + + A package may provide any set of files, including those + not listed here or none at all. + + :param filename: The name of the file in the distribution info. + :return: The text if found, otherwise None. + """ + + @abc.abstractmethod + def locate_file(self, path: str | os.PathLike[str]) -> SimplePath: + """ + Given a path to a file in this distribution, return a SimplePath + to it. + """ + + @classmethod + def from_name(cls, name: str) -> Distribution: + """Return the Distribution for the given package name. + + :param name: The name of the distribution package to search for. + :return: The Distribution instance (or subclass thereof) for the named + package, if found. + :raises PackageNotFoundError: When the named package's distribution + metadata cannot be found. + :raises ValueError: When an invalid value is supplied for name. + """ + if not name: + raise ValueError("A distribution name is required.") + try: + return next(iter(cls.discover(name=name))) + except StopIteration: + raise PackageNotFoundError(name) + + @classmethod + def discover( + cls, *, context: Optional[DistributionFinder.Context] = None, **kwargs + ) -> Iterable[Distribution]: + """Return an iterable of Distribution objects for all packages. + + Pass a ``context`` or pass keyword arguments for constructing + a context. + + :context: A ``DistributionFinder.Context`` object. + :return: Iterable of Distribution objects for packages matching + the context. + """ + if context and kwargs: + raise ValueError("cannot accept context and kwargs") + context = context or DistributionFinder.Context(**kwargs) + return itertools.chain.from_iterable( + resolver(context) for resolver in cls._discover_resolvers() + ) + + @staticmethod + def at(path: str | os.PathLike[str]) -> Distribution: + """Return a Distribution for the indicated metadata path. + + :param path: a string or path-like object + :return: a concrete Distribution instance for the path + """ + return PathDistribution(pathlib.Path(path)) + + @staticmethod + def _discover_resolvers(): + """Search the meta_path for resolvers (MetadataPathFinders).""" + declared = ( + getattr(finder, 'find_distributions', None) for finder in sys.meta_path + ) + return filter(None, declared) + + @property + def metadata(self) -> _meta.PackageMetadata: + """Return the parsed metadata for this Distribution. + + The returned object will have keys that name the various bits of + metadata per the + `Core metadata specifications `_. + + Custom providers may provide the METADATA file or override this + property. + """ + # deferred for performance (python/cpython#109829) + from . import _adapters + + opt_text = ( + self.read_text('METADATA') + or self.read_text('PKG-INFO') + # This last clause is here to support old egg-info files. Its + # effect is to just end up using the PathDistribution's self._path + # (which points to the egg-info file) attribute unchanged. + or self.read_text('') + ) + text = cast(str, opt_text) + return _adapters.Message(email.message_from_string(text)) + + @property + def name(self) -> str: + """Return the 'Name' metadata for the distribution package.""" + return self.metadata['Name'] + + @property + def _normalized_name(self): + """Return a normalized version of the name.""" + return Prepared.normalize(self.name) + + @property + def version(self) -> str: + """Return the 'Version' metadata for the distribution package.""" + return self.metadata['Version'] + + @property + def entry_points(self) -> EntryPoints: + """ + Return EntryPoints for this distribution. + + Custom providers may provide the ``entry_points.txt`` file + or override this property. + """ + return EntryPoints._from_text_for(self.read_text('entry_points.txt'), self) + + @property + def files(self) -> Optional[List[PackagePath]]: + """Files in this distribution. + + :return: List of PackagePath for this distribution or None + + Result is `None` if the metadata file that enumerates files + (i.e. RECORD for dist-info, or installed-files.txt or + SOURCES.txt for egg-info) is missing. + Result may be empty if the metadata exists but is empty. + + Custom providers are recommended to provide a "RECORD" file (in + ``read_text``) or override this property to allow for callers to be + able to resolve filenames provided by the package. + """ + + def make_file(name, hash=None, size_str=None): + result = PackagePath(name) + result.hash = FileHash(hash) if hash else None + result.size = int(size_str) if size_str else None + result.dist = self + return result + + @pass_none + def make_files(lines): + # Delay csv import, since Distribution.files is not as widely used + # as other parts of importlib.metadata + import csv + + return starmap(make_file, csv.reader(lines)) + + @pass_none + def skip_missing_files(package_paths): + return list(filter(lambda path: path.locate().exists(), package_paths)) + + return skip_missing_files( + make_files( + self._read_files_distinfo() + or self._read_files_egginfo_installed() + or self._read_files_egginfo_sources() + ) + ) + + def _read_files_distinfo(self): + """ + Read the lines of RECORD. + """ + text = self.read_text('RECORD') + return text and text.splitlines() + + def _read_files_egginfo_installed(self): + """ + Read installed-files.txt and return lines in a similar + CSV-parsable format as RECORD: each file must be placed + relative to the site-packages directory and must also be + quoted (since file names can contain literal commas). + + This file is written when the package is installed by pip, + but it might not be written for other installation methods. + Assume the file is accurate if it exists. + """ + text = self.read_text('installed-files.txt') + # Prepend the .egg-info/ subdir to the lines in this file. + # But this subdir is only available from PathDistribution's + # self._path. + subdir = getattr(self, '_path', None) + if not text or not subdir: + return + + paths = ( + py311.relative_fix((subdir / name).resolve()) + .relative_to(self.locate_file('').resolve(), walk_up=True) + .as_posix() + for name in text.splitlines() + ) + return map('"{}"'.format, paths) + + def _read_files_egginfo_sources(self): + """ + Read SOURCES.txt and return lines in a similar CSV-parsable + format as RECORD: each file name must be quoted (since it + might contain literal commas). + + Note that SOURCES.txt is not a reliable source for what + files are installed by a package. This file is generated + for a source archive, and the files that are present + there (e.g. setup.py) may not correctly reflect the files + that are present after the package has been installed. + """ + text = self.read_text('SOURCES.txt') + return text and map('"{}"'.format, text.splitlines()) + + @property + def requires(self) -> Optional[List[str]]: + """Generated requirements specified for this Distribution""" + reqs = self._read_dist_info_reqs() or self._read_egg_info_reqs() + return reqs and list(reqs) + + def _read_dist_info_reqs(self): + return self.metadata.get_all('Requires-Dist') + + def _read_egg_info_reqs(self): + source = self.read_text('requires.txt') + return pass_none(self._deps_from_requires_text)(source) + + @classmethod + def _deps_from_requires_text(cls, source): + return cls._convert_egg_info_reqs_to_simple_reqs(Sectioned.read(source)) + + @staticmethod + def _convert_egg_info_reqs_to_simple_reqs(sections): + """ + Historically, setuptools would solicit and store 'extra' + requirements, including those with environment markers, + in separate sections. More modern tools expect each + dependency to be defined separately, with any relevant + extras and environment markers attached directly to that + requirement. This method converts the former to the + latter. See _test_deps_from_requires_text for an example. + """ + + def make_condition(name): + return name and f'extra == "{name}"' + + def quoted_marker(section): + section = section or '' + extra, sep, markers = section.partition(':') + if extra and markers: + markers = f'({markers})' + conditions = list(filter(None, [markers, make_condition(extra)])) + return '; ' + ' and '.join(conditions) if conditions else '' + + def url_req_space(req): + """ + PEP 508 requires a space between the url_spec and the quoted_marker. + Ref python/importlib_metadata#357. + """ + # '@' is uniquely indicative of a url_req. + return ' ' * ('@' in req) + + for section in sections: + space = url_req_space(section.value) + yield section.value + space + quoted_marker(section.name) + + @property + def origin(self): + return self._load_json('direct_url.json') + + def _load_json(self, filename): + return pass_none(json.loads)( + self.read_text(filename), + object_hook=lambda data: types.SimpleNamespace(**data), + ) + + +class DistributionFinder(MetaPathFinder): + """ + A MetaPathFinder capable of discovering installed distributions. + + Custom providers should implement this interface in order to + supply metadata. + """ + + class Context: + """ + Keyword arguments presented by the caller to + ``distributions()`` or ``Distribution.discover()`` + to narrow the scope of a search for distributions + in all DistributionFinders. + + Each DistributionFinder may expect any parameters + and should attempt to honor the canonical + parameters defined below when appropriate. + + This mechanism gives a custom provider a means to + solicit additional details from the caller beyond + "name" and "path" when searching distributions. + For example, imagine a provider that exposes suites + of packages in either a "public" or "private" ``realm``. + A caller may wish to query only for distributions in + a particular realm and could call + ``distributions(realm="private")`` to signal to the + custom provider to only include distributions from that + realm. + """ + + name = None + """ + Specific name for which a distribution finder should match. + A name of ``None`` matches all distributions. + """ + + def __init__(self, **kwargs): + vars(self).update(kwargs) + + @property + def path(self) -> List[str]: + """ + The sequence of directory path that a distribution finder + should search. + + Typically refers to Python installed package paths such as + "site-packages" directories and defaults to ``sys.path``. + """ + return vars(self).get('path', sys.path) + + @abc.abstractmethod + def find_distributions(self, context=Context()) -> Iterable[Distribution]: + """ + Find distributions. + + Return an iterable of all Distribution instances capable of + loading the metadata for packages matching the ``context``, + a DistributionFinder.Context instance. + """ + + +class FastPath: + """ + Micro-optimized class for searching a root for children. + + Root is a path on the file system that may contain metadata + directories either as natural directories or within a zip file. + + >>> FastPath('').children() + ['...'] + + FastPath objects are cached and recycled for any given root. + + >>> FastPath('foobar') is FastPath('foobar') + True + """ + + @functools.lru_cache() # type: ignore + def __new__(cls, root): + return super().__new__(cls) + + def __init__(self, root): + self.root = root + + def joinpath(self, child): + return pathlib.Path(self.root, child) + + def children(self): + with suppress(Exception): + return os.listdir(self.root or '.') + with suppress(Exception): + return self.zip_children() + return [] + + def zip_children(self): + zip_path = zipp.Path(self.root) + names = zip_path.root.namelist() + self.joinpath = zip_path.joinpath + + return dict.fromkeys(child.split(posixpath.sep, 1)[0] for child in names) + + def search(self, name): + return self.lookup(self.mtime).search(name) + + @property + def mtime(self): + with suppress(OSError): + return os.stat(self.root).st_mtime + self.lookup.cache_clear() + + @method_cache + def lookup(self, mtime): + return Lookup(self) + + +class Lookup: + """ + A micro-optimized class for searching a (fast) path for metadata. + """ + + def __init__(self, path: FastPath): + """ + Calculate all of the children representing metadata. + + From the children in the path, calculate early all of the + children that appear to represent metadata (infos) or legacy + metadata (eggs). + """ + + base = os.path.basename(path.root).lower() + base_is_egg = base.endswith(".egg") + self.infos = FreezableDefaultDict(list) + self.eggs = FreezableDefaultDict(list) + + for child in path.children(): + low = child.lower() + if low.endswith((".dist-info", ".egg-info")): + # rpartition is faster than splitext and suitable for this purpose. + name = low.rpartition(".")[0].partition("-")[0] + normalized = Prepared.normalize(name) + self.infos[normalized].append(path.joinpath(child)) + elif base_is_egg and low == "egg-info": + name = base.rpartition(".")[0].partition("-")[0] + legacy_normalized = Prepared.legacy_normalize(name) + self.eggs[legacy_normalized].append(path.joinpath(child)) + + self.infos.freeze() + self.eggs.freeze() + + def search(self, prepared: Prepared): + """ + Yield all infos and eggs matching the Prepared query. + """ + infos = ( + self.infos[prepared.normalized] + if prepared + else itertools.chain.from_iterable(self.infos.values()) + ) + eggs = ( + self.eggs[prepared.legacy_normalized] + if prepared + else itertools.chain.from_iterable(self.eggs.values()) + ) + return itertools.chain(infos, eggs) + + +class Prepared: + """ + A prepared search query for metadata on a possibly-named package. + + Pre-calculates the normalization to prevent repeated operations. + + >>> none = Prepared(None) + >>> none.normalized + >>> none.legacy_normalized + >>> bool(none) + False + >>> sample = Prepared('Sample__Pkg-name.foo') + >>> sample.normalized + 'sample_pkg_name_foo' + >>> sample.legacy_normalized + 'sample__pkg_name.foo' + >>> bool(sample) + True + """ + + normalized = None + legacy_normalized = None + + def __init__(self, name: Optional[str]): + self.name = name + if name is None: + return + self.normalized = self.normalize(name) + self.legacy_normalized = self.legacy_normalize(name) + + @staticmethod + def normalize(name): + """ + PEP 503 normalization plus dashes as underscores. + """ + return re.sub(r"[-_.]+", "-", name).lower().replace('-', '_') + + @staticmethod + def legacy_normalize(name): + """ + Normalize the package name as found in the convention in + older packaging tools versions and specs. + """ + return name.lower().replace('-', '_') + + def __bool__(self): + return bool(self.name) + + +@install +class MetadataPathFinder(NullFinder, DistributionFinder): + """A degenerate finder for distribution packages on the file system. + + This finder supplies only a find_distributions() method for versions + of Python that do not have a PathFinder find_distributions(). + """ + + @classmethod + def find_distributions( + cls, context=DistributionFinder.Context() + ) -> Iterable[PathDistribution]: + """ + Find distributions. + + Return an iterable of all Distribution instances capable of + loading the metadata for packages matching ``context.name`` + (or all names if ``None`` indicated) along the paths in the list + of directories ``context.path``. + """ + found = cls._search_paths(context.name, context.path) + return map(PathDistribution, found) + + @classmethod + def _search_paths(cls, name, paths): + """Find metadata directories in paths heuristically.""" + prepared = Prepared(name) + return itertools.chain.from_iterable( + path.search(prepared) for path in map(FastPath, paths) + ) + + @classmethod + def invalidate_caches(cls) -> None: + FastPath.__new__.cache_clear() + + +class PathDistribution(Distribution): + def __init__(self, path: SimplePath) -> None: + """Construct a distribution. + + :param path: SimplePath indicating the metadata directory. + """ + self._path = path + + def read_text(self, filename: str | os.PathLike[str]) -> Optional[str]: + with suppress( + FileNotFoundError, + IsADirectoryError, + KeyError, + NotADirectoryError, + PermissionError, + ): + return self._path.joinpath(filename).read_text(encoding='utf-8') + + return None + + read_text.__doc__ = Distribution.read_text.__doc__ + + def locate_file(self, path: str | os.PathLike[str]) -> SimplePath: + return self._path.parent / path + + @property + def _normalized_name(self): + """ + Performance optimization: where possible, resolve the + normalized name from the file system path. + """ + stem = os.path.basename(str(self._path)) + return ( + pass_none(Prepared.normalize)(self._name_from_stem(stem)) + or super()._normalized_name + ) + + @staticmethod + def _name_from_stem(stem): + """ + >>> PathDistribution._name_from_stem('foo-3.0.egg-info') + 'foo' + >>> PathDistribution._name_from_stem('CherryPy-3.0.dist-info') + 'CherryPy' + >>> PathDistribution._name_from_stem('face.egg-info') + 'face' + >>> PathDistribution._name_from_stem('foo.bar') + """ + filename, ext = os.path.splitext(stem) + if ext not in ('.dist-info', '.egg-info'): + return + name, sep, rest = filename.partition('-') + return name + + +def distribution(distribution_name: str) -> Distribution: + """Get the ``Distribution`` instance for the named package. + + :param distribution_name: The name of the distribution package as a string. + :return: A ``Distribution`` instance (or subclass thereof). + """ + return Distribution.from_name(distribution_name) + + +def distributions(**kwargs) -> Iterable[Distribution]: + """Get all ``Distribution`` instances in the current environment. + + :return: An iterable of ``Distribution`` instances. + """ + return Distribution.discover(**kwargs) + + +def metadata(distribution_name: str) -> _meta.PackageMetadata: + """Get the metadata for the named package. + + :param distribution_name: The name of the distribution package to query. + :return: A PackageMetadata containing the parsed metadata. + """ + return Distribution.from_name(distribution_name).metadata + + +def version(distribution_name: str) -> str: + """Get the version string for the named package. + + :param distribution_name: The name of the distribution package to query. + :return: The version string for the package as defined in the package's + "Version" metadata key. + """ + return distribution(distribution_name).version + + +_unique = functools.partial( + unique_everseen, + key=py39.normalized_name, +) +""" +Wrapper for ``distributions`` to return unique distributions by name. +""" + + +def entry_points(**params) -> EntryPoints: + """Return EntryPoint objects for all installed packages. + + Pass selection parameters (group or name) to filter the + result to entry points matching those properties (see + EntryPoints.select()). + + :return: EntryPoints for all installed packages. + """ + eps = itertools.chain.from_iterable( + dist.entry_points for dist in _unique(distributions()) + ) + return EntryPoints(eps).select(**params) + + +def files(distribution_name: str) -> Optional[List[PackagePath]]: + """Return a list of files for the named package. + + :param distribution_name: The name of the distribution package to query. + :return: List of files composing the distribution. + """ + return distribution(distribution_name).files + + +def requires(distribution_name: str) -> Optional[List[str]]: + """ + Return a list of requirements for the named package. + + :return: An iterable of requirements, suitable for + packaging.requirement.Requirement. + """ + return distribution(distribution_name).requires + + +def packages_distributions() -> Mapping[str, List[str]]: + """ + Return a mapping of top-level packages to their + distributions. + + >>> import collections.abc + >>> pkgs = packages_distributions() + >>> all(isinstance(dist, collections.abc.Sequence) for dist in pkgs.values()) + True + """ + pkg_to_dist = collections.defaultdict(list) + for dist in distributions(): + for pkg in _top_level_declared(dist) or _top_level_inferred(dist): + pkg_to_dist[pkg].append(dist.metadata['Name']) + return dict(pkg_to_dist) + + +def _top_level_declared(dist): + return (dist.read_text('top_level.txt') or '').split() + + +def _topmost(name: PackagePath) -> Optional[str]: + """ + Return the top-most parent as long as there is a parent. + """ + top, *rest = name.parts + return top if rest else None + + +def _get_toplevel_name(name: PackagePath) -> str: + """ + Infer a possibly importable module name from a name presumed on + sys.path. + + >>> _get_toplevel_name(PackagePath('foo.py')) + 'foo' + >>> _get_toplevel_name(PackagePath('foo')) + 'foo' + >>> _get_toplevel_name(PackagePath('foo.pyc')) + 'foo' + >>> _get_toplevel_name(PackagePath('foo/__init__.py')) + 'foo' + >>> _get_toplevel_name(PackagePath('foo.pth')) + 'foo.pth' + >>> _get_toplevel_name(PackagePath('foo.dist-info')) + 'foo.dist-info' + """ + return _topmost(name) or ( + # python/typeshed#10328 + inspect.getmodulename(name) # type: ignore + or str(name) + ) + + +def _top_level_inferred(dist): + opt_names = set(map(_get_toplevel_name, always_iterable(dist.files))) + + def importable_name(name): + return '.' not in name + + return filter(importable_name, opt_names) diff --git a/setuptools/_vendor/importlib_metadata/_adapters.py b/setuptools/_vendor/importlib_metadata/_adapters.py new file mode 100644 index 0000000000..6223263ed5 --- /dev/null +++ b/setuptools/_vendor/importlib_metadata/_adapters.py @@ -0,0 +1,83 @@ +import re +import textwrap +import email.message + +from ._text import FoldedCase + + +class Message(email.message.Message): + multiple_use_keys = set( + map( + FoldedCase, + [ + 'Classifier', + 'Obsoletes-Dist', + 'Platform', + 'Project-URL', + 'Provides-Dist', + 'Provides-Extra', + 'Requires-Dist', + 'Requires-External', + 'Supported-Platform', + 'Dynamic', + ], + ) + ) + """ + Keys that may be indicated multiple times per PEP 566. + """ + + def __new__(cls, orig: email.message.Message): + res = super().__new__(cls) + vars(res).update(vars(orig)) + return res + + def __init__(self, *args, **kwargs): + self._headers = self._repair_headers() + + # suppress spurious error from mypy + def __iter__(self): + return super().__iter__() + + def __getitem__(self, item): + """ + Override parent behavior to typical dict behavior. + + ``email.message.Message`` will emit None values for missing + keys. Typical mappings, including this ``Message``, will raise + a key error for missing keys. + + Ref python/importlib_metadata#371. + """ + res = super().__getitem__(item) + if res is None: + raise KeyError(item) + return res + + def _repair_headers(self): + def redent(value): + "Correct for RFC822 indentation" + if not value or '\n' not in value: + return value + return textwrap.dedent(' ' * 8 + value) + + headers = [(key, redent(value)) for key, value in vars(self)['_headers']] + if self._payload: + headers.append(('Description', self.get_payload())) + return headers + + @property + def json(self): + """ + Convert PackageMetadata to a JSON-compatible format + per PEP 0566. + """ + + def transform(key): + value = self.get_all(key) if key in self.multiple_use_keys else self[key] + if key == 'Keywords': + value = re.split(r'\s+', value) + tk = key.lower().replace('-', '_') + return tk, value + + return dict(map(transform, map(FoldedCase, self))) diff --git a/setuptools/_vendor/importlib_metadata/_collections.py b/setuptools/_vendor/importlib_metadata/_collections.py new file mode 100644 index 0000000000..cf0954e1a3 --- /dev/null +++ b/setuptools/_vendor/importlib_metadata/_collections.py @@ -0,0 +1,30 @@ +import collections + + +# from jaraco.collections 3.3 +class FreezableDefaultDict(collections.defaultdict): + """ + Often it is desirable to prevent the mutation of + a default dict after its initial construction, such + as to prevent mutation during iteration. + + >>> dd = FreezableDefaultDict(list) + >>> dd[0].append('1') + >>> dd.freeze() + >>> dd[1] + [] + >>> len(dd) + 1 + """ + + def __missing__(self, key): + return getattr(self, '_frozen', super().__missing__)(key) + + def freeze(self): + self._frozen = lambda key: self.default_factory() + + +class Pair(collections.namedtuple('Pair', 'name value')): + @classmethod + def parse(cls, text): + return cls(*map(str.strip, text.split("=", 1))) diff --git a/setuptools/_vendor/importlib_metadata/_compat.py b/setuptools/_vendor/importlib_metadata/_compat.py new file mode 100644 index 0000000000..df312b1cbb --- /dev/null +++ b/setuptools/_vendor/importlib_metadata/_compat.py @@ -0,0 +1,57 @@ +import sys +import platform + + +__all__ = ['install', 'NullFinder'] + + +def install(cls): + """ + Class decorator for installation on sys.meta_path. + + Adds the backport DistributionFinder to sys.meta_path and + attempts to disable the finder functionality of the stdlib + DistributionFinder. + """ + sys.meta_path.append(cls()) + disable_stdlib_finder() + return cls + + +def disable_stdlib_finder(): + """ + Give the backport primacy for discovering path-based distributions + by monkey-patching the stdlib O_O. + + See #91 for more background for rationale on this sketchy + behavior. + """ + + def matches(finder): + return getattr( + finder, '__module__', None + ) == '_frozen_importlib_external' and hasattr(finder, 'find_distributions') + + for finder in filter(matches, sys.meta_path): # pragma: nocover + del finder.find_distributions + + +class NullFinder: + """ + A "Finder" (aka "MetaPathFinder") that never finds any modules, + but may find distributions. + """ + + @staticmethod + def find_spec(*args, **kwargs): + return None + + +def pypy_partial(val): + """ + Adjust for variable stacklevel on partial under PyPy. + + Workaround for #327. + """ + is_pypy = platform.python_implementation() == 'PyPy' + return val + is_pypy diff --git a/setuptools/_vendor/importlib_metadata/_functools.py b/setuptools/_vendor/importlib_metadata/_functools.py new file mode 100644 index 0000000000..71f66bd03c --- /dev/null +++ b/setuptools/_vendor/importlib_metadata/_functools.py @@ -0,0 +1,104 @@ +import types +import functools + + +# from jaraco.functools 3.3 +def method_cache(method, cache_wrapper=None): + """ + Wrap lru_cache to support storing the cache data in the object instances. + + Abstracts the common paradigm where the method explicitly saves an + underscore-prefixed protected property on first call and returns that + subsequently. + + >>> class MyClass: + ... calls = 0 + ... + ... @method_cache + ... def method(self, value): + ... self.calls += 1 + ... return value + + >>> a = MyClass() + >>> a.method(3) + 3 + >>> for x in range(75): + ... res = a.method(x) + >>> a.calls + 75 + + Note that the apparent behavior will be exactly like that of lru_cache + except that the cache is stored on each instance, so values in one + instance will not flush values from another, and when an instance is + deleted, so are the cached values for that instance. + + >>> b = MyClass() + >>> for x in range(35): + ... res = b.method(x) + >>> b.calls + 35 + >>> a.method(0) + 0 + >>> a.calls + 75 + + Note that if method had been decorated with ``functools.lru_cache()``, + a.calls would have been 76 (due to the cached value of 0 having been + flushed by the 'b' instance). + + Clear the cache with ``.cache_clear()`` + + >>> a.method.cache_clear() + + Same for a method that hasn't yet been called. + + >>> c = MyClass() + >>> c.method.cache_clear() + + Another cache wrapper may be supplied: + + >>> cache = functools.lru_cache(maxsize=2) + >>> MyClass.method2 = method_cache(lambda self: 3, cache_wrapper=cache) + >>> a = MyClass() + >>> a.method2() + 3 + + Caution - do not subsequently wrap the method with another decorator, such + as ``@property``, which changes the semantics of the function. + + See also + http://code.activestate.com/recipes/577452-a-memoize-decorator-for-instance-methods/ + for another implementation and additional justification. + """ + cache_wrapper = cache_wrapper or functools.lru_cache() + + def wrapper(self, *args, **kwargs): + # it's the first call, replace the method with a cached, bound method + bound_method = types.MethodType(method, self) + cached_method = cache_wrapper(bound_method) + setattr(self, method.__name__, cached_method) + return cached_method(*args, **kwargs) + + # Support cache clear even before cache has been created. + wrapper.cache_clear = lambda: None + + return wrapper + + +# From jaraco.functools 3.3 +def pass_none(func): + """ + Wrap func so it's not called if its first param is None + + >>> print_text = pass_none(print) + >>> print_text('text') + text + >>> print_text(None) + """ + + @functools.wraps(func) + def wrapper(param, *args, **kwargs): + if param is not None: + return func(param, *args, **kwargs) + + return wrapper diff --git a/setuptools/_vendor/importlib_metadata/_itertools.py b/setuptools/_vendor/importlib_metadata/_itertools.py new file mode 100644 index 0000000000..d4ca9b9140 --- /dev/null +++ b/setuptools/_vendor/importlib_metadata/_itertools.py @@ -0,0 +1,73 @@ +from itertools import filterfalse + + +def unique_everseen(iterable, key=None): + "List unique elements, preserving order. Remember all elements ever seen." + # unique_everseen('AAAABBBCCDAABBB') --> A B C D + # unique_everseen('ABBCcAD', str.lower) --> A B C D + seen = set() + seen_add = seen.add + if key is None: + for element in filterfalse(seen.__contains__, iterable): + seen_add(element) + yield element + else: + for element in iterable: + k = key(element) + if k not in seen: + seen_add(k) + yield element + + +# copied from more_itertools 8.8 +def always_iterable(obj, base_type=(str, bytes)): + """If *obj* is iterable, return an iterator over its items:: + + >>> obj = (1, 2, 3) + >>> list(always_iterable(obj)) + [1, 2, 3] + + If *obj* is not iterable, return a one-item iterable containing *obj*:: + + >>> obj = 1 + >>> list(always_iterable(obj)) + [1] + + If *obj* is ``None``, return an empty iterable: + + >>> obj = None + >>> list(always_iterable(None)) + [] + + By default, binary and text strings are not considered iterable:: + + >>> obj = 'foo' + >>> list(always_iterable(obj)) + ['foo'] + + If *base_type* is set, objects for which ``isinstance(obj, base_type)`` + returns ``True`` won't be considered iterable. + + >>> obj = {'a': 1} + >>> list(always_iterable(obj)) # Iterate over the dict's keys + ['a'] + >>> list(always_iterable(obj, base_type=dict)) # Treat dicts as a unit + [{'a': 1}] + + Set *base_type* to ``None`` to avoid any special handling and treat objects + Python considers iterable as iterable: + + >>> obj = 'foo' + >>> list(always_iterable(obj, base_type=None)) + ['f', 'o', 'o'] + """ + if obj is None: + return iter(()) + + if (base_type is not None) and isinstance(obj, base_type): + return iter((obj,)) + + try: + return iter(obj) + except TypeError: + return iter((obj,)) diff --git a/setuptools/_vendor/importlib_metadata/_meta.py b/setuptools/_vendor/importlib_metadata/_meta.py new file mode 100644 index 0000000000..1927d0f624 --- /dev/null +++ b/setuptools/_vendor/importlib_metadata/_meta.py @@ -0,0 +1,67 @@ +from __future__ import annotations + +import os +from typing import Protocol +from typing import Any, Dict, Iterator, List, Optional, TypeVar, Union, overload + + +_T = TypeVar("_T") + + +class PackageMetadata(Protocol): + def __len__(self) -> int: ... # pragma: no cover + + def __contains__(self, item: str) -> bool: ... # pragma: no cover + + def __getitem__(self, key: str) -> str: ... # pragma: no cover + + def __iter__(self) -> Iterator[str]: ... # pragma: no cover + + @overload + def get( + self, name: str, failobj: None = None + ) -> Optional[str]: ... # pragma: no cover + + @overload + def get(self, name: str, failobj: _T) -> Union[str, _T]: ... # pragma: no cover + + # overload per python/importlib_metadata#435 + @overload + def get_all( + self, name: str, failobj: None = None + ) -> Optional[List[Any]]: ... # pragma: no cover + + @overload + def get_all(self, name: str, failobj: _T) -> Union[List[Any], _T]: + """ + Return all values associated with a possibly multi-valued key. + """ + + @property + def json(self) -> Dict[str, Union[str, List[str]]]: + """ + A JSON-compatible form of the metadata. + """ + + +class SimplePath(Protocol): + """ + A minimal subset of pathlib.Path required by Distribution. + """ + + def joinpath( + self, other: Union[str, os.PathLike[str]] + ) -> SimplePath: ... # pragma: no cover + + def __truediv__( + self, other: Union[str, os.PathLike[str]] + ) -> SimplePath: ... # pragma: no cover + + @property + def parent(self) -> SimplePath: ... # pragma: no cover + + def read_text(self, encoding=None) -> str: ... # pragma: no cover + + def read_bytes(self) -> bytes: ... # pragma: no cover + + def exists(self) -> bool: ... # pragma: no cover diff --git a/setuptools/_vendor/importlib_metadata/_text.py b/setuptools/_vendor/importlib_metadata/_text.py new file mode 100644 index 0000000000..c88cfbb234 --- /dev/null +++ b/setuptools/_vendor/importlib_metadata/_text.py @@ -0,0 +1,99 @@ +import re + +from ._functools import method_cache + + +# from jaraco.text 3.5 +class FoldedCase(str): + """ + A case insensitive string class; behaves just like str + except compares equal when the only variation is case. + + >>> s = FoldedCase('hello world') + + >>> s == 'Hello World' + True + + >>> 'Hello World' == s + True + + >>> s != 'Hello World' + False + + >>> s.index('O') + 4 + + >>> s.split('O') + ['hell', ' w', 'rld'] + + >>> sorted(map(FoldedCase, ['GAMMA', 'alpha', 'Beta'])) + ['alpha', 'Beta', 'GAMMA'] + + Sequence membership is straightforward. + + >>> "Hello World" in [s] + True + >>> s in ["Hello World"] + True + + You may test for set inclusion, but candidate and elements + must both be folded. + + >>> FoldedCase("Hello World") in {s} + True + >>> s in {FoldedCase("Hello World")} + True + + String inclusion works as long as the FoldedCase object + is on the right. + + >>> "hello" in FoldedCase("Hello World") + True + + But not if the FoldedCase object is on the left: + + >>> FoldedCase('hello') in 'Hello World' + False + + In that case, use in_: + + >>> FoldedCase('hello').in_('Hello World') + True + + >>> FoldedCase('hello') > FoldedCase('Hello') + False + """ + + def __lt__(self, other): + return self.lower() < other.lower() + + def __gt__(self, other): + return self.lower() > other.lower() + + def __eq__(self, other): + return self.lower() == other.lower() + + def __ne__(self, other): + return self.lower() != other.lower() + + def __hash__(self): + return hash(self.lower()) + + def __contains__(self, other): + return super().lower().__contains__(other.lower()) + + def in_(self, other): + "Does self appear in other?" + return self in FoldedCase(other) + + # cache lower since it's likely to be called frequently. + @method_cache + def lower(self): + return super().lower() + + def index(self, sub): + return self.lower().index(sub.lower()) + + def split(self, splitter=' ', maxsplit=0): + pattern = re.compile(re.escape(splitter), re.I) + return pattern.split(self, maxsplit) diff --git a/setuptools/_vendor/importlib_metadata/compat/__init__.py b/setuptools/_vendor/importlib_metadata/compat/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/setuptools/_vendor/importlib_metadata/compat/py311.py b/setuptools/_vendor/importlib_metadata/compat/py311.py new file mode 100644 index 0000000000..3a5327436f --- /dev/null +++ b/setuptools/_vendor/importlib_metadata/compat/py311.py @@ -0,0 +1,22 @@ +import os +import pathlib +import sys +import types + + +def wrap(path): # pragma: no cover + """ + Workaround for https://github.com/python/cpython/issues/84538 + to add backward compatibility for walk_up=True. + An example affected package is dask-labextension, which uses + jupyter-packaging to install JupyterLab javascript files outside + of site-packages. + """ + + def relative_to(root, *, walk_up=False): + return pathlib.Path(os.path.relpath(path, root)) + + return types.SimpleNamespace(relative_to=relative_to) + + +relative_fix = wrap if sys.version_info < (3, 12) else lambda x: x diff --git a/setuptools/_vendor/importlib_metadata/compat/py39.py b/setuptools/_vendor/importlib_metadata/compat/py39.py new file mode 100644 index 0000000000..1f15bd97e6 --- /dev/null +++ b/setuptools/_vendor/importlib_metadata/compat/py39.py @@ -0,0 +1,36 @@ +""" +Compatibility layer with Python 3.8/3.9 +""" + +from typing import TYPE_CHECKING, Any, Optional + +if TYPE_CHECKING: # pragma: no cover + # Prevent circular imports on runtime. + from .. import Distribution, EntryPoint +else: + Distribution = EntryPoint = Any + + +def normalized_name(dist: Distribution) -> Optional[str]: + """ + Honor name normalization for distributions that don't provide ``_normalized_name``. + """ + try: + return dist._normalized_name + except AttributeError: + from .. import Prepared # -> delay to prevent circular imports. + + return Prepared.normalize(getattr(dist, "name", None) or dist.metadata['Name']) + + +def ep_matches(ep: EntryPoint, **params) -> bool: + """ + Workaround for ``EntryPoint`` objects without the ``matches`` method. + """ + try: + return ep.matches(**params) + except AttributeError: + from .. import EntryPoint # -> delay to prevent circular imports. + + # Reconstruct the EntryPoint object to make sure it is compatible. + return EntryPoint(ep.name, ep.value, ep.group).matches(**params) diff --git a/setuptools/_vendor/importlib_metadata/diagnose.py b/setuptools/_vendor/importlib_metadata/diagnose.py new file mode 100644 index 0000000000..e405471ac4 --- /dev/null +++ b/setuptools/_vendor/importlib_metadata/diagnose.py @@ -0,0 +1,21 @@ +import sys + +from . import Distribution + + +def inspect(path): + print("Inspecting", path) + dists = list(Distribution.discover(path=[path])) + if not dists: + return + print("Found", len(dists), "packages:", end=' ') + print(', '.join(dist.name for dist in dists)) + + +def run(): + for path in sys.path: + inspect(path) + + +if __name__ == '__main__': + run() diff --git a/setuptools/_vendor/importlib_metadata/py.typed b/setuptools/_vendor/importlib_metadata/py.typed new file mode 100644 index 0000000000..e69de29bb2 diff --git a/setuptools/_vendor/inflect-7.3.1.dist-info/INSTALLER b/setuptools/_vendor/inflect-7.3.1.dist-info/INSTALLER new file mode 100644 index 0000000000..a1b589e38a --- /dev/null +++ b/setuptools/_vendor/inflect-7.3.1.dist-info/INSTALLER @@ -0,0 +1 @@ +pip diff --git a/setuptools/_vendor/inflect-7.3.1.dist-info/LICENSE b/setuptools/_vendor/inflect-7.3.1.dist-info/LICENSE new file mode 100644 index 0000000000..1bb5a44356 --- /dev/null +++ b/setuptools/_vendor/inflect-7.3.1.dist-info/LICENSE @@ -0,0 +1,17 @@ +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to +deal in the Software without restriction, including without limitation the +rights to use, copy, modify, merge, publish, distribute, sublicense, and/or +sell copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS +IN THE SOFTWARE. diff --git a/setuptools/_vendor/inflect-7.3.1.dist-info/METADATA b/setuptools/_vendor/inflect-7.3.1.dist-info/METADATA new file mode 100644 index 0000000000..9a2097a54a --- /dev/null +++ b/setuptools/_vendor/inflect-7.3.1.dist-info/METADATA @@ -0,0 +1,591 @@ +Metadata-Version: 2.1 +Name: inflect +Version: 7.3.1 +Summary: Correctly generate plurals, singular nouns, ordinals, indefinite articles +Author-email: Paul Dyson +Maintainer-email: "Jason R. Coombs" +Project-URL: Source, https://github.com/jaraco/inflect +Keywords: plural,inflect,participle +Classifier: Development Status :: 5 - Production/Stable +Classifier: Intended Audience :: Developers +Classifier: License :: OSI Approved :: MIT License +Classifier: Programming Language :: Python :: 3 +Classifier: Programming Language :: Python :: 3 :: Only +Classifier: Natural Language :: English +Classifier: Operating System :: OS Independent +Classifier: Topic :: Software Development :: Libraries :: Python Modules +Classifier: Topic :: Text Processing :: Linguistic +Requires-Python: >=3.8 +Description-Content-Type: text/x-rst +License-File: LICENSE +Requires-Dist: more-itertools >=8.5.0 +Requires-Dist: typeguard >=4.0.1 +Requires-Dist: typing-extensions ; python_version < "3.9" +Provides-Extra: doc +Requires-Dist: sphinx >=3.5 ; extra == 'doc' +Requires-Dist: jaraco.packaging >=9.3 ; extra == 'doc' +Requires-Dist: rst.linker >=1.9 ; extra == 'doc' +Requires-Dist: furo ; extra == 'doc' +Requires-Dist: sphinx-lint ; extra == 'doc' +Requires-Dist: jaraco.tidelift >=1.4 ; extra == 'doc' +Provides-Extra: test +Requires-Dist: pytest !=8.1.*,>=6 ; extra == 'test' +Requires-Dist: pytest-checkdocs >=2.4 ; extra == 'test' +Requires-Dist: pytest-cov ; extra == 'test' +Requires-Dist: pytest-mypy ; extra == 'test' +Requires-Dist: pytest-enabler >=2.2 ; extra == 'test' +Requires-Dist: pytest-ruff >=0.2.1 ; extra == 'test' +Requires-Dist: pygments ; extra == 'test' + +.. image:: https://img.shields.io/pypi/v/inflect.svg + :target: https://pypi.org/project/inflect + +.. image:: https://img.shields.io/pypi/pyversions/inflect.svg + +.. image:: https://github.com/jaraco/inflect/actions/workflows/main.yml/badge.svg + :target: https://github.com/jaraco/inflect/actions?query=workflow%3A%22tests%22 + :alt: tests + +.. image:: https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/charliermarsh/ruff/main/assets/badge/v2.json + :target: https://github.com/astral-sh/ruff + :alt: Ruff + +.. image:: https://readthedocs.org/projects/inflect/badge/?version=latest + :target: https://inflect.readthedocs.io/en/latest/?badge=latest + +.. image:: https://img.shields.io/badge/skeleton-2024-informational + :target: https://blog.jaraco.com/skeleton + +.. image:: https://tidelift.com/badges/package/pypi/inflect + :target: https://tidelift.com/subscription/pkg/pypi-inflect?utm_source=pypi-inflect&utm_medium=readme + +NAME +==== + +inflect.py - Correctly generate plurals, singular nouns, ordinals, indefinite articles; convert numbers to words. + +SYNOPSIS +======== + +.. code-block:: python + + import inflect + + p = inflect.engine() + + # METHODS: + + # plural plural_noun plural_verb plural_adj singular_noun no num + # compare compare_nouns compare_nouns compare_adjs + # a an + # present_participle + # ordinal number_to_words + # join + # inflect classical gender + # defnoun defverb defadj defa defan + + + # UNCONDITIONALLY FORM THE PLURAL + + print("The plural of ", word, " is ", p.plural(word)) + + + # CONDITIONALLY FORM THE PLURAL + + print("I saw", cat_count, p.plural("cat", cat_count)) + + + # FORM PLURALS FOR SPECIFIC PARTS OF SPEECH + + print( + p.plural_noun("I", N1), + p.plural_verb("saw", N1), + p.plural_adj("my", N2), + p.plural_noun("saw", N2), + ) + + + # FORM THE SINGULAR OF PLURAL NOUNS + + print("The singular of ", word, " is ", p.singular_noun(word)) + + # SELECT THE GENDER OF SINGULAR PRONOUNS + + print(p.singular_noun("they")) # 'it' + p.gender("feminine") + print(p.singular_noun("they")) # 'she' + + + # DEAL WITH "0/1/N" -> "no/1/N" TRANSLATION: + + print("There ", p.plural_verb("was", errors), p.no(" error", errors)) + + + # USE DEFAULT COUNTS: + + print( + p.num(N1, ""), + p.plural("I"), + p.plural_verb(" saw"), + p.num(N2), + p.plural_noun(" saw"), + ) + print("There ", p.num(errors, ""), p.plural_verb("was"), p.no(" error")) + + + # COMPARE TWO WORDS "NUMBER-INSENSITIVELY": + + if p.compare(word1, word2): + print("same") + if p.compare_nouns(word1, word2): + print("same noun") + if p.compare_verbs(word1, word2): + print("same verb") + if p.compare_adjs(word1, word2): + print("same adj.") + + + # ADD CORRECT "a" OR "an" FOR A GIVEN WORD: + + print("Did you want ", p.a(thing), " or ", p.an(idea)) + + + # CONVERT NUMERALS INTO ORDINALS (i.e. 1->1st, 2->2nd, 3->3rd, etc.) + + print("It was", p.ordinal(position), " from the left\n") + + # CONVERT NUMERALS TO WORDS (i.e. 1->"one", 101->"one hundred and one", etc.) + # RETURNS A SINGLE STRING... + + words = p.number_to_words(1234) + # "one thousand, two hundred and thirty-four" + words = p.number_to_words(p.ordinal(1234)) + # "one thousand, two hundred and thirty-fourth" + + + # GET BACK A LIST OF STRINGS, ONE FOR EACH "CHUNK"... + + words = p.number_to_words(1234, wantlist=True) + # ("one thousand","two hundred and thirty-four") + + + # OPTIONAL PARAMETERS CHANGE TRANSLATION: + + words = p.number_to_words(12345, group=1) + # "one, two, three, four, five" + + words = p.number_to_words(12345, group=2) + # "twelve, thirty-four, five" + + words = p.number_to_words(12345, group=3) + # "one twenty-three, forty-five" + + words = p.number_to_words(1234, andword="") + # "one thousand, two hundred thirty-four" + + words = p.number_to_words(1234, andword=", plus") + # "one thousand, two hundred, plus thirty-four" + # TODO: I get no comma before plus: check perl + + words = p.number_to_words(555_1202, group=1, zero="oh") + # "five, five, five, one, two, oh, two" + + words = p.number_to_words(555_1202, group=1, one="unity") + # "five, five, five, unity, two, oh, two" + + words = p.number_to_words(123.456, group=1, decimal="mark") + # "one two three mark four five six" + # TODO: DOCBUG: perl gives commas here as do I + + # LITERAL STYLE ONLY NAMES NUMBERS LESS THAN A CERTAIN THRESHOLD... + + words = p.number_to_words(9, threshold=10) # "nine" + words = p.number_to_words(10, threshold=10) # "ten" + words = p.number_to_words(11, threshold=10) # "11" + words = p.number_to_words(1000, threshold=10) # "1,000" + + # JOIN WORDS INTO A LIST: + + mylist = p.join(("apple", "banana", "carrot")) + # "apple, banana, and carrot" + + mylist = p.join(("apple", "banana")) + # "apple and banana" + + mylist = p.join(("apple", "banana", "carrot"), final_sep="") + # "apple, banana and carrot" + + + # REQUIRE "CLASSICAL" PLURALS (EG: "focus"->"foci", "cherub"->"cherubim") + + p.classical() # USE ALL CLASSICAL PLURALS + + p.classical(all=True) # USE ALL CLASSICAL PLURALS + p.classical(all=False) # SWITCH OFF CLASSICAL MODE + + p.classical(zero=True) # "no error" INSTEAD OF "no errors" + p.classical(zero=False) # "no errors" INSTEAD OF "no error" + + p.classical(herd=True) # "2 buffalo" INSTEAD OF "2 buffalos" + p.classical(herd=False) # "2 buffalos" INSTEAD OF "2 buffalo" + + p.classical(persons=True) # "2 chairpersons" INSTEAD OF "2 chairpeople" + p.classical(persons=False) # "2 chairpeople" INSTEAD OF "2 chairpersons" + + p.classical(ancient=True) # "2 formulae" INSTEAD OF "2 formulas" + p.classical(ancient=False) # "2 formulas" INSTEAD OF "2 formulae" + + + # INTERPOLATE "plural()", "plural_noun()", "plural_verb()", "plural_adj()", "singular_noun()", + # a()", "an()", "num()" AND "ordinal()" WITHIN STRINGS: + + print(p.inflect("The plural of {0} is plural('{0}')".format(word))) + print(p.inflect("The singular of {0} is singular_noun('{0}')".format(word))) + print(p.inflect("I saw {0} plural('cat',{0})".format(cat_count))) + print( + p.inflect( + "plural('I',{0}) " + "plural_verb('saw',{0}) " + "plural('a',{1}) " + "plural_noun('saw',{1})".format(N1, N2) + ) + ) + print( + p.inflect( + "num({0}, False)plural('I') " + "plural_verb('saw') " + "num({1}, False)plural('a') " + "plural_noun('saw')".format(N1, N2) + ) + ) + print(p.inflect("I saw num({0}) plural('cat')\nnum()".format(cat_count))) + print(p.inflect("There plural_verb('was',{0}) no('error',{0})".format(errors))) + print(p.inflect("There num({0}, False)plural_verb('was') no('error')".format(errors))) + print(p.inflect("Did you want a('{0}') or an('{1}')".format(thing, idea))) + print(p.inflect("It was ordinal('{0}') from the left".format(position))) + + + # ADD USER-DEFINED INFLECTIONS (OVERRIDING INBUILT RULES): + + p.defnoun("VAX", "VAXen") # SINGULAR => PLURAL + + p.defverb( + "will", # 1ST PERSON SINGULAR + "shall", # 1ST PERSON PLURAL + "will", # 2ND PERSON SINGULAR + "will", # 2ND PERSON PLURAL + "will", # 3RD PERSON SINGULAR + "will", # 3RD PERSON PLURAL + ) + + p.defadj("hir", "their") # SINGULAR => PLURAL + + p.defa("h") # "AY HALWAYS SEZ 'HAITCH'!" + + p.defan("horrendous.*") # "AN HORRENDOUS AFFECTATION" + + +DESCRIPTION +=========== + +The methods of the class ``engine`` in module ``inflect.py`` provide plural +inflections, singular noun inflections, "a"/"an" selection for English words, +and manipulation of numbers as words. + +Plural forms of all nouns, most verbs, and some adjectives are +provided. Where appropriate, "classical" variants (for example: "brother" -> +"brethren", "dogma" -> "dogmata", etc.) are also provided. + +Single forms of nouns are also provided. The gender of singular pronouns +can be chosen (for example "they" -> "it" or "she" or "he" or "they"). + +Pronunciation-based "a"/"an" selection is provided for all English +words, and most initialisms. + +It is also possible to inflect numerals (1,2,3) to ordinals (1st, 2nd, 3rd) +and to English words ("one", "two", "three"). + +In generating these inflections, ``inflect.py`` follows the Oxford +English Dictionary and the guidelines in Fowler's Modern English +Usage, preferring the former where the two disagree. + +The module is built around standard British spelling, but is designed +to cope with common American variants as well. Slang, jargon, and +other English dialects are *not* explicitly catered for. + +Where two or more inflected forms exist for a single word (typically a +"classical" form and a "modern" form), ``inflect.py`` prefers the +more common form (typically the "modern" one), unless "classical" +processing has been specified +(see `MODERN VS CLASSICAL INFLECTIONS`). + +FORMING PLURALS AND SINGULARS +============================= + +Inflecting Plurals and Singulars +-------------------------------- + +All of the ``plural...`` plural inflection methods take the word to be +inflected as their first argument and return the corresponding inflection. +Note that all such methods expect the *singular* form of the word. The +results of passing a plural form are undefined (and unlikely to be correct). +Similarly, the ``si...`` singular inflection method expects the *plural* +form of the word. + +The ``plural...`` methods also take an optional second argument, +which indicates the grammatical "number" of the word (or of another word +with which the word being inflected must agree). If the "number" argument is +supplied and is not ``1`` (or ``"one"`` or ``"a"``, or some other adjective that +implies the singular), the plural form of the word is returned. If the +"number" argument *does* indicate singularity, the (uninflected) word +itself is returned. If the number argument is omitted, the plural form +is returned unconditionally. + +The ``si...`` method takes a second argument in a similar fashion. If it is +some form of the number ``1``, or is omitted, the singular form is returned. +Otherwise the plural is returned unaltered. + + +The various methods of ``inflect.engine`` are: + + + +``plural_noun(word, count=None)`` + + The method ``plural_noun()`` takes a *singular* English noun or + pronoun and returns its plural. Pronouns in the nominative ("I" -> + "we") and accusative ("me" -> "us") cases are handled, as are + possessive pronouns ("mine" -> "ours"). + + +``plural_verb(word, count=None)`` + + The method ``plural_verb()`` takes the *singular* form of a + conjugated verb (that is, one which is already in the correct "person" + and "mood") and returns the corresponding plural conjugation. + + +``plural_adj(word, count=None)`` + + The method ``plural_adj()`` takes the *singular* form of + certain types of adjectives and returns the corresponding plural form. + Adjectives that are correctly handled include: "numerical" adjectives + ("a" -> "some"), demonstrative adjectives ("this" -> "these", "that" -> + "those"), and possessives ("my" -> "our", "cat's" -> "cats'", "child's" + -> "childrens'", etc.) + + +``plural(word, count=None)`` + + The method ``plural()`` takes a *singular* English noun, + pronoun, verb, or adjective and returns its plural form. Where a word + has more than one inflection depending on its part of speech (for + example, the noun "thought" inflects to "thoughts", the verb "thought" + to "thought"), the (singular) noun sense is preferred to the (singular) + verb sense. + + Hence ``plural("knife")`` will return "knives" ("knife" having been treated + as a singular noun), whereas ``plural("knifes")`` will return "knife" + ("knifes" having been treated as a 3rd person singular verb). + + The inherent ambiguity of such cases suggests that, + where the part of speech is known, ``plural_noun``, ``plural_verb``, and + ``plural_adj`` should be used in preference to ``plural``. + + +``singular_noun(word, count=None)`` + + The method ``singular_noun()`` takes a *plural* English noun or + pronoun and returns its singular. Pronouns in the nominative ("we" -> + "I") and accusative ("us" -> "me") cases are handled, as are + possessive pronouns ("ours" -> "mine"). When third person + singular pronouns are returned they take the neuter gender by default + ("they" -> "it"), not ("they"-> "she") nor ("they" -> "he"). This can be + changed with ``gender()``. + +Note that all these methods ignore any whitespace surrounding the +word being inflected, but preserve that whitespace when the result is +returned. For example, ``plural(" cat ")`` returns " cats ". + + +``gender(genderletter)`` + + The third person plural pronoun takes the same form for the female, male and + neuter (e.g. "they"). The singular however, depends upon gender (e.g. "she", + "he", "it" and "they" -- "they" being the gender neutral form.) By default + ``singular_noun`` returns the neuter form, however, the gender can be selected with + the ``gender`` method. Pass the first letter of the gender to + ``gender`` to return the f(eminine), m(asculine), n(euter) or t(hey) + form of the singular. e.g. + gender('f') followed by singular_noun('themselves') returns 'herself'. + +Numbered plurals +---------------- + +The ``plural...`` methods return only the inflected word, not the count that +was used to inflect it. Thus, in order to produce "I saw 3 ducks", it +is necessary to use: + +.. code-block:: python + + print("I saw", N, p.plural_noun(animal, N)) + +Since the usual purpose of producing a plural is to make it agree with +a preceding count, inflect.py provides a method +(``no(word, count)``) which, given a word and a(n optional) count, returns the +count followed by the correctly inflected word. Hence the previous +example can be rewritten: + +.. code-block:: python + + print("I saw ", p.no(animal, N)) + +In addition, if the count is zero (or some other term which implies +zero, such as ``"zero"``, ``"nil"``, etc.) the count is replaced by the +word "no". Hence, if ``N`` had the value zero, the previous example +would print (the somewhat more elegant):: + + I saw no animals + +rather than:: + + I saw 0 animals + +Note that the name of the method is a pun: the method +returns either a number (a *No.*) or a ``"no"``, in front of the +inflected word. + + +Reducing the number of counts required +-------------------------------------- + +In some contexts, the need to supply an explicit count to the various +``plural...`` methods makes for tiresome repetition. For example: + +.. code-block:: python + + print( + plural_adj("This", errors), + plural_noun(" error", errors), + plural_verb(" was", errors), + " fatal.", + ) + +inflect.py therefore provides a method +(``num(count=None, show=None)``) which may be used to set a persistent "default number" +value. If such a value is set, it is subsequently used whenever an +optional second "number" argument is omitted. The default value thus set +can subsequently be removed by calling ``num()`` with no arguments. +Hence we could rewrite the previous example: + +.. code-block:: python + + p.num(errors) + print(p.plural_adj("This"), p.plural_noun(" error"), p.plural_verb(" was"), "fatal.") + p.num() + +Normally, ``num()`` returns its first argument, so that it may also +be "inlined" in contexts like: + +.. code-block:: python + + print(p.num(errors), p.plural_noun(" error"), p.plural_verb(" was"), " detected.") + if severity > 1: + print( + p.plural_adj("This"), p.plural_noun(" error"), p.plural_verb(" was"), "fatal." + ) + +However, in certain contexts (see `INTERPOLATING INFLECTIONS IN STRINGS`) +it is preferable that ``num()`` return an empty string. Hence ``num()`` +provides an optional second argument. If that argument is supplied (that is, if +it is defined) and evaluates to false, ``num`` returns an empty string +instead of its first argument. For example: + +.. code-block:: python + + print(p.num(errors, 0), p.no("error"), p.plural_verb(" was"), " detected.") + if severity > 1: + print( + p.plural_adj("This"), p.plural_noun(" error"), p.plural_verb(" was"), "fatal." + ) + + + +Number-insensitive equality +--------------------------- + +inflect.py also provides a solution to the problem +of comparing words of differing plurality through the methods +``compare(word1, word2)``, ``compare_nouns(word1, word2)``, +``compare_verbs(word1, word2)``, and ``compare_adjs(word1, word2)``. +Each of these methods takes two strings, and compares them +using the corresponding plural-inflection method (``plural()``, ``plural_noun()``, +``plural_verb()``, and ``plural_adj()`` respectively). + +The comparison returns true if: + +- the strings are equal, or +- one string is equal to a plural form of the other, or +- the strings are two different plural forms of the one word. + + +Hence all of the following return true: + +.. code-block:: python + + p.compare("index", "index") # RETURNS "eq" + p.compare("index", "indexes") # RETURNS "s:p" + p.compare("index", "indices") # RETURNS "s:p" + p.compare("indexes", "index") # RETURNS "p:s" + p.compare("indices", "index") # RETURNS "p:s" + p.compare("indices", "indexes") # RETURNS "p:p" + p.compare("indexes", "indices") # RETURNS "p:p" + p.compare("indices", "indices") # RETURNS "eq" + +As indicated by the comments in the previous example, the actual value +returned by the various ``compare`` methods encodes which of the +three equality rules succeeded: "eq" is returned if the strings were +identical, "s:p" if the strings were singular and plural respectively, +"p:s" for plural and singular, and "p:p" for two distinct plurals. +Inequality is indicated by returning an empty string. + +It should be noted that two distinct singular words which happen to take +the same plural form are *not* considered equal, nor are cases where +one (singular) word's plural is the other (plural) word's singular. +Hence all of the following return false: + +.. code-block:: python + + p.compare("base", "basis") # ALTHOUGH BOTH -> "bases" + p.compare("syrinx", "syringe") # ALTHOUGH BOTH -> "syringes" + p.compare("she", "he") # ALTHOUGH BOTH -> "they" + + p.compare("opus", "operas") # ALTHOUGH "opus" -> "opera" -> "operas" + p.compare("taxi", "taxes") # ALTHOUGH "taxi" -> "taxis" -> "taxes" + +Note too that, although the comparison is "number-insensitive" it is *not* +case-insensitive (that is, ``plural("time","Times")`` returns false. To obtain +both number and case insensitivity, use the ``lower()`` method on both strings +(that is, ``plural("time".lower(), "Times".lower())`` returns true). + +Related Functionality +===================== + +Shout out to these libraries that provide related functionality: + +* `WordSet `_ + parses identifiers like variable names into sets of words suitable for re-assembling + in another form. + +* `word2number `_ converts words to + a number. + + +For Enterprise +============== + +Available as part of the Tidelift Subscription. + +This project and the maintainers of thousands of other packages are working with Tidelift to deliver one enterprise subscription that covers all of the open source you use. + +`Learn more `_. diff --git a/setuptools/_vendor/inflect-7.3.1.dist-info/RECORD b/setuptools/_vendor/inflect-7.3.1.dist-info/RECORD new file mode 100644 index 0000000000..73ff576be5 --- /dev/null +++ b/setuptools/_vendor/inflect-7.3.1.dist-info/RECORD @@ -0,0 +1,13 @@ +inflect-7.3.1.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4 +inflect-7.3.1.dist-info/LICENSE,sha256=htoPAa6uRjSKPD1GUZXcHOzN55956HdppkuNoEsqR0E,1023 +inflect-7.3.1.dist-info/METADATA,sha256=ZgMNY0WAZRs-U8wZiV2SMfjSKqBrMngXyDMs_CAwMwg,21079 +inflect-7.3.1.dist-info/RECORD,, +inflect-7.3.1.dist-info/WHEEL,sha256=y4mX-SOX4fYIkonsAGA5N0Oy-8_gI4FXw5HNI1xqvWg,91 +inflect-7.3.1.dist-info/top_level.txt,sha256=m52ujdp10CqT6jh1XQxZT6kEntcnv-7Tl7UiGNTzWZA,8 +inflect/__init__.py,sha256=Jxy1HJXZiZ85kHeLAhkmvz6EMTdFqBe-duvt34R6IOc,103796 +inflect/__pycache__/__init__.cpython-312.pyc,, +inflect/compat/__init__.py,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0 +inflect/compat/__pycache__/__init__.cpython-312.pyc,, +inflect/compat/__pycache__/py38.cpython-312.pyc,, +inflect/compat/py38.py,sha256=oObVfVnWX9_OpnOuEJn1mFbJxVhwyR5epbiTNXDDaso,160 +inflect/py.typed,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0 diff --git a/setuptools/_vendor/inflect-7.3.1.dist-info/WHEEL b/setuptools/_vendor/inflect-7.3.1.dist-info/WHEEL new file mode 100644 index 0000000000..564c6724e4 --- /dev/null +++ b/setuptools/_vendor/inflect-7.3.1.dist-info/WHEEL @@ -0,0 +1,5 @@ +Wheel-Version: 1.0 +Generator: setuptools (70.2.0) +Root-Is-Purelib: true +Tag: py3-none-any + diff --git a/setuptools/_vendor/inflect-7.3.1.dist-info/top_level.txt b/setuptools/_vendor/inflect-7.3.1.dist-info/top_level.txt new file mode 100644 index 0000000000..0fd75fab3e --- /dev/null +++ b/setuptools/_vendor/inflect-7.3.1.dist-info/top_level.txt @@ -0,0 +1 @@ +inflect diff --git a/setuptools/_vendor/inflect/__init__.py b/setuptools/_vendor/inflect/__init__.py new file mode 100644 index 0000000000..3eec27f4c6 --- /dev/null +++ b/setuptools/_vendor/inflect/__init__.py @@ -0,0 +1,3986 @@ +""" +inflect: english language inflection + - correctly generate plurals, ordinals, indefinite articles + - convert numbers to words + +Copyright (C) 2010 Paul Dyson + +Based upon the Perl module +`Lingua::EN::Inflect `_. + +methods: + classical inflect + plural plural_noun plural_verb plural_adj singular_noun no num a an + compare compare_nouns compare_verbs compare_adjs + present_participle + ordinal + number_to_words + join + defnoun defverb defadj defa defan + +INFLECTIONS: + classical inflect + plural plural_noun plural_verb plural_adj singular_noun compare + no num a an present_participle + +PLURALS: + classical inflect + plural plural_noun plural_verb plural_adj singular_noun no num + compare compare_nouns compare_verbs compare_adjs + +COMPARISONS: + classical + compare compare_nouns compare_verbs compare_adjs + +ARTICLES: + classical inflect num a an + +NUMERICAL: + ordinal number_to_words + +USER_DEFINED: + defnoun defverb defadj defa defan + +Exceptions: + UnknownClassicalModeError + BadNumValueError + BadChunkingOptionError + NumOutOfRangeError + BadUserDefinedPatternError + BadRcFileError + BadGenderError + +""" + +from __future__ import annotations + +import ast +import collections +import contextlib +import functools +import itertools +import re +from numbers import Number +from typing import ( + TYPE_CHECKING, + Any, + Callable, + Dict, + Iterable, + List, + Literal, + Match, + Optional, + Sequence, + Tuple, + Union, + cast, +) + +from more_itertools import windowed_complete +from typeguard import typechecked + +from .compat.py38 import Annotated + + +class UnknownClassicalModeError(Exception): + pass + + +class BadNumValueError(Exception): + pass + + +class BadChunkingOptionError(Exception): + pass + + +class NumOutOfRangeError(Exception): + pass + + +class BadUserDefinedPatternError(Exception): + pass + + +class BadRcFileError(Exception): + pass + + +class BadGenderError(Exception): + pass + + +def enclose(s: str) -> str: + return f"(?:{s})" + + +def joinstem(cutpoint: Optional[int] = 0, words: Optional[Iterable[str]] = None) -> str: + """ + Join stem of each word in words into a string for regex. + + Each word is truncated at cutpoint. + + Cutpoint is usually negative indicating the number of letters to remove + from the end of each word. + + >>> joinstem(-2, ["ephemeris", "iris", ".*itis"]) + '(?:ephemer|ir|.*it)' + + >>> joinstem(None, ["ephemeris"]) + '(?:ephemeris)' + + >>> joinstem(5, None) + '(?:)' + """ + return enclose("|".join(w[:cutpoint] for w in words or [])) + + +def bysize(words: Iterable[str]) -> Dict[int, set]: + """ + From a list of words, return a dict of sets sorted by word length. + + >>> words = ['ant', 'cat', 'dog', 'pig', 'frog', 'goat', 'horse', 'elephant'] + >>> ret = bysize(words) + >>> sorted(ret[3]) + ['ant', 'cat', 'dog', 'pig'] + >>> ret[5] + {'horse'} + """ + res: Dict[int, set] = collections.defaultdict(set) + for w in words: + res[len(w)].add(w) + return res + + +def make_pl_si_lists( + lst: Iterable[str], + plending: str, + siendingsize: Optional[int], + dojoinstem: bool = True, +): + """ + given a list of singular words: lst + + an ending to append to make the plural: plending + + the number of characters to remove from the singular + before appending plending: siendingsize + + a flag whether to create a joinstem: dojoinstem + + return: + a list of pluralised words: si_list (called si because this is what you need to + look for to make the singular) + + the pluralised words as a dict of sets sorted by word length: si_bysize + the singular words as a dict of sets sorted by word length: pl_bysize + if dojoinstem is True: a regular expression that matches any of the stems: stem + """ + if siendingsize is not None: + siendingsize = -siendingsize + si_list = [w[:siendingsize] + plending for w in lst] + pl_bysize = bysize(lst) + si_bysize = bysize(si_list) + if dojoinstem: + stem = joinstem(siendingsize, lst) + return si_list, si_bysize, pl_bysize, stem + else: + return si_list, si_bysize, pl_bysize + + +# 1. PLURALS + +pl_sb_irregular_s = { + "corpus": "corpuses|corpora", + "opus": "opuses|opera", + "genus": "genera", + "mythos": "mythoi", + "penis": "penises|penes", + "testis": "testes", + "atlas": "atlases|atlantes", + "yes": "yeses", +} + +pl_sb_irregular = { + "child": "children", + "chili": "chilis|chilies", + "brother": "brothers|brethren", + "infinity": "infinities|infinity", + "loaf": "loaves", + "lore": "lores|lore", + "hoof": "hoofs|hooves", + "beef": "beefs|beeves", + "thief": "thiefs|thieves", + "money": "monies", + "mongoose": "mongooses", + "ox": "oxen", + "cow": "cows|kine", + "graffito": "graffiti", + "octopus": "octopuses|octopodes", + "genie": "genies|genii", + "ganglion": "ganglions|ganglia", + "trilby": "trilbys", + "turf": "turfs|turves", + "numen": "numina", + "atman": "atmas", + "occiput": "occiputs|occipita", + "sabretooth": "sabretooths", + "sabertooth": "sabertooths", + "lowlife": "lowlifes", + "flatfoot": "flatfoots", + "tenderfoot": "tenderfoots", + "romany": "romanies", + "jerry": "jerries", + "mary": "maries", + "talouse": "talouses", + "rom": "roma", + "carmen": "carmina", +} + +pl_sb_irregular.update(pl_sb_irregular_s) +# pl_sb_irregular_keys = enclose('|'.join(pl_sb_irregular.keys())) + +pl_sb_irregular_caps = { + "Romany": "Romanies", + "Jerry": "Jerrys", + "Mary": "Marys", + "Rom": "Roma", +} + +pl_sb_irregular_compound = {"prima donna": "prima donnas|prime donne"} + +si_sb_irregular = {v: k for (k, v) in pl_sb_irregular.items()} +for k in list(si_sb_irregular): + if "|" in k: + k1, k2 = k.split("|") + si_sb_irregular[k1] = si_sb_irregular[k2] = si_sb_irregular[k] + del si_sb_irregular[k] +si_sb_irregular_caps = {v: k for (k, v) in pl_sb_irregular_caps.items()} +si_sb_irregular_compound = {v: k for (k, v) in pl_sb_irregular_compound.items()} +for k in list(si_sb_irregular_compound): + if "|" in k: + k1, k2 = k.split("|") + si_sb_irregular_compound[k1] = si_sb_irregular_compound[k2] = ( + si_sb_irregular_compound[k] + ) + del si_sb_irregular_compound[k] + +# si_sb_irregular_keys = enclose('|'.join(si_sb_irregular.keys())) + +# Z's that don't double + +pl_sb_z_zes_list = ("quartz", "topaz") +pl_sb_z_zes_bysize = bysize(pl_sb_z_zes_list) + +pl_sb_ze_zes_list = ("snooze",) +pl_sb_ze_zes_bysize = bysize(pl_sb_ze_zes_list) + + +# CLASSICAL "..is" -> "..ides" + +pl_sb_C_is_ides_complete = [ + # GENERAL WORDS... + "ephemeris", + "iris", + "clitoris", + "chrysalis", + "epididymis", +] + +pl_sb_C_is_ides_endings = [ + # INFLAMATIONS... + "itis" +] + +pl_sb_C_is_ides = joinstem( + -2, pl_sb_C_is_ides_complete + [f".*{w}" for w in pl_sb_C_is_ides_endings] +) + +pl_sb_C_is_ides_list = pl_sb_C_is_ides_complete + pl_sb_C_is_ides_endings + +( + si_sb_C_is_ides_list, + si_sb_C_is_ides_bysize, + pl_sb_C_is_ides_bysize, +) = make_pl_si_lists(pl_sb_C_is_ides_list, "ides", 2, dojoinstem=False) + + +# CLASSICAL "..a" -> "..ata" + +pl_sb_C_a_ata_list = ( + "anathema", + "bema", + "carcinoma", + "charisma", + "diploma", + "dogma", + "drama", + "edema", + "enema", + "enigma", + "lemma", + "lymphoma", + "magma", + "melisma", + "miasma", + "oedema", + "sarcoma", + "schema", + "soma", + "stigma", + "stoma", + "trauma", + "gumma", + "pragma", +) + +( + si_sb_C_a_ata_list, + si_sb_C_a_ata_bysize, + pl_sb_C_a_ata_bysize, + pl_sb_C_a_ata, +) = make_pl_si_lists(pl_sb_C_a_ata_list, "ata", 1) + +# UNCONDITIONAL "..a" -> "..ae" + +pl_sb_U_a_ae_list = ( + "alumna", + "alga", + "vertebra", + "persona", + "vita", +) +( + si_sb_U_a_ae_list, + si_sb_U_a_ae_bysize, + pl_sb_U_a_ae_bysize, + pl_sb_U_a_ae, +) = make_pl_si_lists(pl_sb_U_a_ae_list, "e", None) + +# CLASSICAL "..a" -> "..ae" + +pl_sb_C_a_ae_list = ( + "amoeba", + "antenna", + "formula", + "hyperbola", + "medusa", + "nebula", + "parabola", + "abscissa", + "hydra", + "nova", + "lacuna", + "aurora", + "umbra", + "flora", + "fauna", +) +( + si_sb_C_a_ae_list, + si_sb_C_a_ae_bysize, + pl_sb_C_a_ae_bysize, + pl_sb_C_a_ae, +) = make_pl_si_lists(pl_sb_C_a_ae_list, "e", None) + + +# CLASSICAL "..en" -> "..ina" + +pl_sb_C_en_ina_list = ("stamen", "foramen", "lumen") + +( + si_sb_C_en_ina_list, + si_sb_C_en_ina_bysize, + pl_sb_C_en_ina_bysize, + pl_sb_C_en_ina, +) = make_pl_si_lists(pl_sb_C_en_ina_list, "ina", 2) + + +# UNCONDITIONAL "..um" -> "..a" + +pl_sb_U_um_a_list = ( + "bacterium", + "agendum", + "desideratum", + "erratum", + "stratum", + "datum", + "ovum", + "extremum", + "candelabrum", +) +( + si_sb_U_um_a_list, + si_sb_U_um_a_bysize, + pl_sb_U_um_a_bysize, + pl_sb_U_um_a, +) = make_pl_si_lists(pl_sb_U_um_a_list, "a", 2) + +# CLASSICAL "..um" -> "..a" + +pl_sb_C_um_a_list = ( + "maximum", + "minimum", + "momentum", + "optimum", + "quantum", + "cranium", + "curriculum", + "dictum", + "phylum", + "aquarium", + "compendium", + "emporium", + "encomium", + "gymnasium", + "honorarium", + "interregnum", + "lustrum", + "memorandum", + "millennium", + "rostrum", + "spectrum", + "speculum", + "stadium", + "trapezium", + "ultimatum", + "medium", + "vacuum", + "velum", + "consortium", + "arboretum", +) + +( + si_sb_C_um_a_list, + si_sb_C_um_a_bysize, + pl_sb_C_um_a_bysize, + pl_sb_C_um_a, +) = make_pl_si_lists(pl_sb_C_um_a_list, "a", 2) + + +# UNCONDITIONAL "..us" -> "i" + +pl_sb_U_us_i_list = ( + "alumnus", + "alveolus", + "bacillus", + "bronchus", + "locus", + "nucleus", + "stimulus", + "meniscus", + "sarcophagus", +) +( + si_sb_U_us_i_list, + si_sb_U_us_i_bysize, + pl_sb_U_us_i_bysize, + pl_sb_U_us_i, +) = make_pl_si_lists(pl_sb_U_us_i_list, "i", 2) + +# CLASSICAL "..us" -> "..i" + +pl_sb_C_us_i_list = ( + "focus", + "radius", + "genius", + "incubus", + "succubus", + "nimbus", + "fungus", + "nucleolus", + "stylus", + "torus", + "umbilicus", + "uterus", + "hippopotamus", + "cactus", +) + +( + si_sb_C_us_i_list, + si_sb_C_us_i_bysize, + pl_sb_C_us_i_bysize, + pl_sb_C_us_i, +) = make_pl_si_lists(pl_sb_C_us_i_list, "i", 2) + + +# CLASSICAL "..us" -> "..us" (ASSIMILATED 4TH DECLENSION LATIN NOUNS) + +pl_sb_C_us_us = ( + "status", + "apparatus", + "prospectus", + "sinus", + "hiatus", + "impetus", + "plexus", +) +pl_sb_C_us_us_bysize = bysize(pl_sb_C_us_us) + +# UNCONDITIONAL "..on" -> "a" + +pl_sb_U_on_a_list = ( + "criterion", + "perihelion", + "aphelion", + "phenomenon", + "prolegomenon", + "noumenon", + "organon", + "asyndeton", + "hyperbaton", +) +( + si_sb_U_on_a_list, + si_sb_U_on_a_bysize, + pl_sb_U_on_a_bysize, + pl_sb_U_on_a, +) = make_pl_si_lists(pl_sb_U_on_a_list, "a", 2) + +# CLASSICAL "..on" -> "..a" + +pl_sb_C_on_a_list = ("oxymoron",) + +( + si_sb_C_on_a_list, + si_sb_C_on_a_bysize, + pl_sb_C_on_a_bysize, + pl_sb_C_on_a, +) = make_pl_si_lists(pl_sb_C_on_a_list, "a", 2) + + +# CLASSICAL "..o" -> "..i" (BUT NORMALLY -> "..os") + +pl_sb_C_o_i = [ + "solo", + "soprano", + "basso", + "alto", + "contralto", + "tempo", + "piano", + "virtuoso", +] # list not tuple so can concat for pl_sb_U_o_os + +pl_sb_C_o_i_bysize = bysize(pl_sb_C_o_i) +si_sb_C_o_i_bysize = bysize([f"{w[:-1]}i" for w in pl_sb_C_o_i]) + +pl_sb_C_o_i_stems = joinstem(-1, pl_sb_C_o_i) + +# ALWAYS "..o" -> "..os" + +pl_sb_U_o_os_complete = {"ado", "ISO", "NATO", "NCO", "NGO", "oto"} +si_sb_U_o_os_complete = {f"{w}s" for w in pl_sb_U_o_os_complete} + + +pl_sb_U_o_os_endings = [ + "aficionado", + "aggro", + "albino", + "allegro", + "ammo", + "Antananarivo", + "archipelago", + "armadillo", + "auto", + "avocado", + "Bamako", + "Barquisimeto", + "bimbo", + "bingo", + "Biro", + "bolero", + "Bolzano", + "bongo", + "Boto", + "burro", + "Cairo", + "canto", + "cappuccino", + "casino", + "cello", + "Chicago", + "Chimango", + "cilantro", + "cochito", + "coco", + "Colombo", + "Colorado", + "commando", + "concertino", + "contango", + "credo", + "crescendo", + "cyano", + "demo", + "ditto", + "Draco", + "dynamo", + "embryo", + "Esperanto", + "espresso", + "euro", + "falsetto", + "Faro", + "fiasco", + "Filipino", + "flamenco", + "furioso", + "generalissimo", + "Gestapo", + "ghetto", + "gigolo", + "gizmo", + "Greensboro", + "gringo", + "Guaiabero", + "guano", + "gumbo", + "gyro", + "hairdo", + "hippo", + "Idaho", + "impetigo", + "inferno", + "info", + "intermezzo", + "intertrigo", + "Iquico", + "jumbo", + "junto", + "Kakapo", + "kilo", + "Kinkimavo", + "Kokako", + "Kosovo", + "Lesotho", + "libero", + "libido", + "libretto", + "lido", + "Lilo", + "limbo", + "limo", + "lineno", + "lingo", + "lino", + "livedo", + "loco", + "logo", + "lumbago", + "macho", + "macro", + "mafioso", + "magneto", + "magnifico", + "Majuro", + "Malabo", + "manifesto", + "Maputo", + "Maracaibo", + "medico", + "memo", + "metro", + "Mexico", + "micro", + "Milano", + "Monaco", + "mono", + "Montenegro", + "Morocco", + "Muqdisho", + "myo", + "neutrino", + "Ningbo", + "octavo", + "oregano", + "Orinoco", + "Orlando", + "Oslo", + "panto", + "Paramaribo", + "Pardusco", + "pedalo", + "photo", + "pimento", + "pinto", + "pleco", + "Pluto", + "pogo", + "polo", + "poncho", + "Porto-Novo", + "Porto", + "pro", + "psycho", + "pueblo", + "quarto", + "Quito", + "repo", + "rhino", + "risotto", + "rococo", + "rondo", + "Sacramento", + "saddo", + "sago", + "salvo", + "Santiago", + "Sapporo", + "Sarajevo", + "scherzando", + "scherzo", + "silo", + "sirocco", + "sombrero", + "staccato", + "sterno", + "stucco", + "stylo", + "sumo", + "Taiko", + "techno", + "terrazzo", + "testudo", + "timpano", + "tiro", + "tobacco", + "Togo", + "Tokyo", + "torero", + "Torino", + "Toronto", + "torso", + "tremolo", + "typo", + "tyro", + "ufo", + "UNESCO", + "vaquero", + "vermicello", + "verso", + "vibrato", + "violoncello", + "Virgo", + "weirdo", + "WHO", + "WTO", + "Yamoussoukro", + "yo-yo", + "zero", + "Zibo", +] + pl_sb_C_o_i + +pl_sb_U_o_os_bysize = bysize(pl_sb_U_o_os_endings) +si_sb_U_o_os_bysize = bysize([f"{w}s" for w in pl_sb_U_o_os_endings]) + + +# UNCONDITIONAL "..ch" -> "..chs" + +pl_sb_U_ch_chs_list = ("czech", "eunuch", "stomach") + +( + si_sb_U_ch_chs_list, + si_sb_U_ch_chs_bysize, + pl_sb_U_ch_chs_bysize, + pl_sb_U_ch_chs, +) = make_pl_si_lists(pl_sb_U_ch_chs_list, "s", None) + + +# UNCONDITIONAL "..[ei]x" -> "..ices" + +pl_sb_U_ex_ices_list = ("codex", "murex", "silex") +( + si_sb_U_ex_ices_list, + si_sb_U_ex_ices_bysize, + pl_sb_U_ex_ices_bysize, + pl_sb_U_ex_ices, +) = make_pl_si_lists(pl_sb_U_ex_ices_list, "ices", 2) + +pl_sb_U_ix_ices_list = ("radix", "helix") +( + si_sb_U_ix_ices_list, + si_sb_U_ix_ices_bysize, + pl_sb_U_ix_ices_bysize, + pl_sb_U_ix_ices, +) = make_pl_si_lists(pl_sb_U_ix_ices_list, "ices", 2) + +# CLASSICAL "..[ei]x" -> "..ices" + +pl_sb_C_ex_ices_list = ( + "vortex", + "vertex", + "cortex", + "latex", + "pontifex", + "apex", + "index", + "simplex", +) + +( + si_sb_C_ex_ices_list, + si_sb_C_ex_ices_bysize, + pl_sb_C_ex_ices_bysize, + pl_sb_C_ex_ices, +) = make_pl_si_lists(pl_sb_C_ex_ices_list, "ices", 2) + + +pl_sb_C_ix_ices_list = ("appendix",) + +( + si_sb_C_ix_ices_list, + si_sb_C_ix_ices_bysize, + pl_sb_C_ix_ices_bysize, + pl_sb_C_ix_ices, +) = make_pl_si_lists(pl_sb_C_ix_ices_list, "ices", 2) + + +# ARABIC: ".." -> "..i" + +pl_sb_C_i_list = ("afrit", "afreet", "efreet") + +(si_sb_C_i_list, si_sb_C_i_bysize, pl_sb_C_i_bysize, pl_sb_C_i) = make_pl_si_lists( + pl_sb_C_i_list, "i", None +) + + +# HEBREW: ".." -> "..im" + +pl_sb_C_im_list = ("goy", "seraph", "cherub") + +(si_sb_C_im_list, si_sb_C_im_bysize, pl_sb_C_im_bysize, pl_sb_C_im) = make_pl_si_lists( + pl_sb_C_im_list, "im", None +) + + +# UNCONDITIONAL "..man" -> "..mans" + +pl_sb_U_man_mans_list = """ + ataman caiman cayman ceriman + desman dolman farman harman hetman + human leman ottoman shaman talisman +""".split() +pl_sb_U_man_mans_caps_list = """ + Alabaman Bahaman Burman German + Hiroshiman Liman Nakayaman Norman Oklahoman + Panaman Roman Selman Sonaman Tacoman Yakiman + Yokohaman Yuman +""".split() + +( + si_sb_U_man_mans_list, + si_sb_U_man_mans_bysize, + pl_sb_U_man_mans_bysize, +) = make_pl_si_lists(pl_sb_U_man_mans_list, "s", None, dojoinstem=False) +( + si_sb_U_man_mans_caps_list, + si_sb_U_man_mans_caps_bysize, + pl_sb_U_man_mans_caps_bysize, +) = make_pl_si_lists(pl_sb_U_man_mans_caps_list, "s", None, dojoinstem=False) + +# UNCONDITIONAL "..louse" -> "..lice" +pl_sb_U_louse_lice_list = ("booklouse", "grapelouse", "louse", "woodlouse") + +( + si_sb_U_louse_lice_list, + si_sb_U_louse_lice_bysize, + pl_sb_U_louse_lice_bysize, +) = make_pl_si_lists(pl_sb_U_louse_lice_list, "lice", 5, dojoinstem=False) + +pl_sb_uninflected_s_complete = [ + # PAIRS OR GROUPS SUBSUMED TO A SINGULAR... + "breeches", + "britches", + "pajamas", + "pyjamas", + "clippers", + "gallows", + "hijinks", + "headquarters", + "pliers", + "scissors", + "testes", + "herpes", + "pincers", + "shears", + "proceedings", + "trousers", + # UNASSIMILATED LATIN 4th DECLENSION + "cantus", + "coitus", + "nexus", + # RECENT IMPORTS... + "contretemps", + "corps", + "debris", + "siemens", + # DISEASES + "mumps", + # MISCELLANEOUS OTHERS... + "diabetes", + "jackanapes", + "series", + "species", + "subspecies", + "rabies", + "chassis", + "innings", + "news", + "mews", + "haggis", +] + +pl_sb_uninflected_s_endings = [ + # RECENT IMPORTS... + "ois", + # DISEASES + "measles", +] + +pl_sb_uninflected_s = pl_sb_uninflected_s_complete + [ + f".*{w}" for w in pl_sb_uninflected_s_endings +] + +pl_sb_uninflected_herd = ( + # DON'T INFLECT IN CLASSICAL MODE, OTHERWISE NORMAL INFLECTION + "wildebeest", + "swine", + "eland", + "bison", + "buffalo", + "cattle", + "elk", + "rhinoceros", + "zucchini", + "caribou", + "dace", + "grouse", + "guinea fowl", + "guinea-fowl", + "haddock", + "hake", + "halibut", + "herring", + "mackerel", + "pickerel", + "pike", + "roe", + "seed", + "shad", + "snipe", + "teal", + "turbot", + "water fowl", + "water-fowl", +) + +pl_sb_uninflected_complete = [ + # SOME FISH AND HERD ANIMALS + "tuna", + "salmon", + "mackerel", + "trout", + "bream", + "sea-bass", + "sea bass", + "carp", + "cod", + "flounder", + "whiting", + "moose", + # OTHER ODDITIES + "graffiti", + "djinn", + "samuri", + "offspring", + "pence", + "quid", + "hertz", +] + pl_sb_uninflected_s_complete +# SOME WORDS ENDING IN ...s (OFTEN PAIRS TAKEN AS A WHOLE) + +pl_sb_uninflected_caps = [ + # ALL NATIONALS ENDING IN -ese + "Portuguese", + "Amoyese", + "Borghese", + "Congoese", + "Faroese", + "Foochowese", + "Genevese", + "Genoese", + "Gilbertese", + "Hottentotese", + "Kiplingese", + "Kongoese", + "Lucchese", + "Maltese", + "Nankingese", + "Niasese", + "Pekingese", + "Piedmontese", + "Pistoiese", + "Sarawakese", + "Shavese", + "Vermontese", + "Wenchowese", + "Yengeese", +] + + +pl_sb_uninflected_endings = [ + # UNCOUNTABLE NOUNS + "butter", + "cash", + "furniture", + "information", + # SOME FISH AND HERD ANIMALS + "fish", + "deer", + "sheep", + # ALL NATIONALS ENDING IN -ese + "nese", + "rese", + "lese", + "mese", + # DISEASES + "pox", + # OTHER ODDITIES + "craft", +] + pl_sb_uninflected_s_endings +# SOME WORDS ENDING IN ...s (OFTEN PAIRS TAKEN AS A WHOLE) + + +pl_sb_uninflected_bysize = bysize(pl_sb_uninflected_endings) + + +# SINGULAR WORDS ENDING IN ...s (ALL INFLECT WITH ...es) + +pl_sb_singular_s_complete = [ + "acropolis", + "aegis", + "alias", + "asbestos", + "bathos", + "bias", + "bronchitis", + "bursitis", + "caddis", + "cannabis", + "canvas", + "chaos", + "cosmos", + "dais", + "digitalis", + "epidermis", + "ethos", + "eyas", + "gas", + "glottis", + "hubris", + "ibis", + "lens", + "mantis", + "marquis", + "metropolis", + "pathos", + "pelvis", + "polis", + "rhinoceros", + "sassafras", + "trellis", +] + pl_sb_C_is_ides_complete + + +pl_sb_singular_s_endings = ["ss", "us"] + pl_sb_C_is_ides_endings + +pl_sb_singular_s_bysize = bysize(pl_sb_singular_s_endings) + +si_sb_singular_s_complete = [f"{w}es" for w in pl_sb_singular_s_complete] +si_sb_singular_s_endings = [f"{w}es" for w in pl_sb_singular_s_endings] +si_sb_singular_s_bysize = bysize(si_sb_singular_s_endings) + +pl_sb_singular_s_es = ["[A-Z].*es"] + +pl_sb_singular_s = enclose( + "|".join( + pl_sb_singular_s_complete + + [f".*{w}" for w in pl_sb_singular_s_endings] + + pl_sb_singular_s_es + ) +) + + +# PLURALS ENDING IN uses -> use + + +si_sb_ois_oi_case = ("Bolshois", "Hanois") + +si_sb_uses_use_case = ("Betelgeuses", "Duses", "Meuses", "Syracuses", "Toulouses") + +si_sb_uses_use = ( + "abuses", + "applauses", + "blouses", + "carouses", + "causes", + "chartreuses", + "clauses", + "contuses", + "douses", + "excuses", + "fuses", + "grouses", + "hypotenuses", + "masseuses", + "menopauses", + "misuses", + "muses", + "overuses", + "pauses", + "peruses", + "profuses", + "recluses", + "reuses", + "ruses", + "souses", + "spouses", + "suffuses", + "transfuses", + "uses", +) + +si_sb_ies_ie_case = ( + "Addies", + "Aggies", + "Allies", + "Amies", + "Angies", + "Annies", + "Annmaries", + "Archies", + "Arties", + "Aussies", + "Barbies", + "Barries", + "Basies", + "Bennies", + "Bernies", + "Berties", + "Bessies", + "Betties", + "Billies", + "Blondies", + "Bobbies", + "Bonnies", + "Bowies", + "Brandies", + "Bries", + "Brownies", + "Callies", + "Carnegies", + "Carries", + "Cassies", + "Charlies", + "Cheries", + "Christies", + "Connies", + "Curies", + "Dannies", + "Debbies", + "Dixies", + "Dollies", + "Donnies", + "Drambuies", + "Eddies", + "Effies", + "Ellies", + "Elsies", + "Eries", + "Ernies", + "Essies", + "Eugenies", + "Fannies", + "Flossies", + "Frankies", + "Freddies", + "Gillespies", + "Goldies", + "Gracies", + "Guthries", + "Hallies", + "Hatties", + "Hetties", + "Hollies", + "Jackies", + "Jamies", + "Janies", + "Jannies", + "Jeanies", + "Jeannies", + "Jennies", + "Jessies", + "Jimmies", + "Jodies", + "Johnies", + "Johnnies", + "Josies", + "Julies", + "Kalgoorlies", + "Kathies", + "Katies", + "Kellies", + "Kewpies", + "Kristies", + "Laramies", + "Lassies", + "Lauries", + "Leslies", + "Lessies", + "Lillies", + "Lizzies", + "Lonnies", + "Lories", + "Lorries", + "Lotties", + "Louies", + "Mackenzies", + "Maggies", + "Maisies", + "Mamies", + "Marcies", + "Margies", + "Maries", + "Marjories", + "Matties", + "McKenzies", + "Melanies", + "Mickies", + "Millies", + "Minnies", + "Mollies", + "Mounties", + "Nannies", + "Natalies", + "Nellies", + "Netties", + "Ollies", + "Ozzies", + "Pearlies", + "Pottawatomies", + "Reggies", + "Richies", + "Rickies", + "Robbies", + "Ronnies", + "Rosalies", + "Rosemaries", + "Rosies", + "Roxies", + "Rushdies", + "Ruthies", + "Sadies", + "Sallies", + "Sammies", + "Scotties", + "Selassies", + "Sherries", + "Sophies", + "Stacies", + "Stefanies", + "Stephanies", + "Stevies", + "Susies", + "Sylvies", + "Tammies", + "Terries", + "Tessies", + "Tommies", + "Tracies", + "Trekkies", + "Valaries", + "Valeries", + "Valkyries", + "Vickies", + "Virgies", + "Willies", + "Winnies", + "Wylies", + "Yorkies", +) + +si_sb_ies_ie = ( + "aeries", + "baggies", + "belies", + "biggies", + "birdies", + "bogies", + "bonnies", + "boogies", + "bookies", + "bourgeoisies", + "brownies", + "budgies", + "caddies", + "calories", + "camaraderies", + "cockamamies", + "collies", + "cookies", + "coolies", + "cooties", + "coteries", + "crappies", + "curies", + "cutesies", + "dogies", + "eyries", + "floozies", + "footsies", + "freebies", + "genies", + "goalies", + "groupies", + "hies", + "jalousies", + "junkies", + "kiddies", + "laddies", + "lassies", + "lies", + "lingeries", + "magpies", + "menageries", + "mommies", + "movies", + "neckties", + "newbies", + "nighties", + "oldies", + "organdies", + "overlies", + "pies", + "pinkies", + "pixies", + "potpies", + "prairies", + "quickies", + "reveries", + "rookies", + "rotisseries", + "softies", + "sorties", + "species", + "stymies", + "sweeties", + "ties", + "underlies", + "unties", + "veggies", + "vies", + "yuppies", + "zombies", +) + + +si_sb_oes_oe_case = ( + "Chloes", + "Crusoes", + "Defoes", + "Faeroes", + "Ivanhoes", + "Joes", + "McEnroes", + "Moes", + "Monroes", + "Noes", + "Poes", + "Roscoes", + "Tahoes", + "Tippecanoes", + "Zoes", +) + +si_sb_oes_oe = ( + "aloes", + "backhoes", + "canoes", + "does", + "floes", + "foes", + "hoes", + "mistletoes", + "oboes", + "pekoes", + "roes", + "sloes", + "throes", + "tiptoes", + "toes", + "woes", +) + +si_sb_z_zes = ("quartzes", "topazes") + +si_sb_zzes_zz = ("buzzes", "fizzes", "frizzes", "razzes") + +si_sb_ches_che_case = ( + "Andromaches", + "Apaches", + "Blanches", + "Comanches", + "Nietzsches", + "Porsches", + "Roches", +) + +si_sb_ches_che = ( + "aches", + "avalanches", + "backaches", + "bellyaches", + "caches", + "cloches", + "creches", + "douches", + "earaches", + "fiches", + "headaches", + "heartaches", + "microfiches", + "niches", + "pastiches", + "psyches", + "quiches", + "stomachaches", + "toothaches", + "tranches", +) + +si_sb_xes_xe = ("annexes", "axes", "deluxes", "pickaxes") + +si_sb_sses_sse_case = ("Hesses", "Jesses", "Larousses", "Matisses") +si_sb_sses_sse = ( + "bouillabaisses", + "crevasses", + "demitasses", + "impasses", + "mousses", + "posses", +) + +si_sb_ves_ve_case = ( + # *[nwl]ives -> [nwl]live + "Clives", + "Palmolives", +) +si_sb_ves_ve = ( + # *[^d]eaves -> eave + "interweaves", + "weaves", + # *[nwl]ives -> [nwl]live + "olives", + # *[eoa]lves -> [eoa]lve + "bivalves", + "dissolves", + "resolves", + "salves", + "twelves", + "valves", +) + + +plverb_special_s = enclose( + "|".join( + [pl_sb_singular_s] + + pl_sb_uninflected_s + + list(pl_sb_irregular_s) + + ["(.*[csx])is", "(.*)ceps", "[A-Z].*s"] + ) +) + +_pl_sb_postfix_adj_defn = ( + ("general", enclose(r"(?!major|lieutenant|brigadier|adjutant|.*star)\S+")), + ("martial", enclose("court")), + ("force", enclose("pound")), +) + +pl_sb_postfix_adj: Iterable[str] = ( + enclose(val + f"(?=(?:-|\\s+){key})") for key, val in _pl_sb_postfix_adj_defn +) + +pl_sb_postfix_adj_stems = f"({'|'.join(pl_sb_postfix_adj)})(.*)" + + +# PLURAL WORDS ENDING IS es GO TO SINGULAR is + +si_sb_es_is = ( + "amanuenses", + "amniocenteses", + "analyses", + "antitheses", + "apotheoses", + "arterioscleroses", + "atheroscleroses", + "axes", + # 'bases', # bases -> basis + "catalyses", + "catharses", + "chasses", + "cirrhoses", + "cocces", + "crises", + "diagnoses", + "dialyses", + "diereses", + "electrolyses", + "emphases", + "exegeses", + "geneses", + "halitoses", + "hydrolyses", + "hypnoses", + "hypotheses", + "hystereses", + "metamorphoses", + "metastases", + "misdiagnoses", + "mitoses", + "mononucleoses", + "narcoses", + "necroses", + "nemeses", + "neuroses", + "oases", + "osmoses", + "osteoporoses", + "paralyses", + "parentheses", + "parthenogeneses", + "periphrases", + "photosyntheses", + "probosces", + "prognoses", + "prophylaxes", + "prostheses", + "preces", + "psoriases", + "psychoanalyses", + "psychokineses", + "psychoses", + "scleroses", + "scolioses", + "sepses", + "silicoses", + "symbioses", + "synopses", + "syntheses", + "taxes", + "telekineses", + "theses", + "thromboses", + "tuberculoses", + "urinalyses", +) + +pl_prep_list = """ + about above across after among around at athwart before behind + below beneath beside besides between betwixt beyond but by + during except for from in into near of off on onto out over + since till to under until unto upon with""".split() + +pl_prep_list_da = pl_prep_list + ["de", "du", "da"] + +pl_prep_bysize = bysize(pl_prep_list_da) + +pl_prep = enclose("|".join(pl_prep_list_da)) + +pl_sb_prep_dual_compound = rf"(.*?)((?:-|\s+)(?:{pl_prep})(?:-|\s+))a(?:-|\s+)(.*)" + + +singular_pronoun_genders = { + "neuter", + "feminine", + "masculine", + "gender-neutral", + "feminine or masculine", + "masculine or feminine", +} + +pl_pron_nom = { + # NOMINATIVE REFLEXIVE + "i": "we", + "myself": "ourselves", + "you": "you", + "yourself": "yourselves", + "she": "they", + "herself": "themselves", + "he": "they", + "himself": "themselves", + "it": "they", + "itself": "themselves", + "they": "they", + "themself": "themselves", + # POSSESSIVE + "mine": "ours", + "yours": "yours", + "hers": "theirs", + "his": "theirs", + "its": "theirs", + "theirs": "theirs", +} + +si_pron: Dict[str, Dict[str, Union[str, Dict[str, str]]]] = { + "nom": {v: k for (k, v) in pl_pron_nom.items()} +} +si_pron["nom"]["we"] = "I" + + +pl_pron_acc = { + # ACCUSATIVE REFLEXIVE + "me": "us", + "myself": "ourselves", + "you": "you", + "yourself": "yourselves", + "her": "them", + "herself": "themselves", + "him": "them", + "himself": "themselves", + "it": "them", + "itself": "themselves", + "them": "them", + "themself": "themselves", +} + +pl_pron_acc_keys = enclose("|".join(pl_pron_acc)) +pl_pron_acc_keys_bysize = bysize(pl_pron_acc) + +si_pron["acc"] = {v: k for (k, v) in pl_pron_acc.items()} + +for _thecase, _plur, _gend, _sing in ( + ("nom", "they", "neuter", "it"), + ("nom", "they", "feminine", "she"), + ("nom", "they", "masculine", "he"), + ("nom", "they", "gender-neutral", "they"), + ("nom", "they", "feminine or masculine", "she or he"), + ("nom", "they", "masculine or feminine", "he or she"), + ("nom", "themselves", "neuter", "itself"), + ("nom", "themselves", "feminine", "herself"), + ("nom", "themselves", "masculine", "himself"), + ("nom", "themselves", "gender-neutral", "themself"), + ("nom", "themselves", "feminine or masculine", "herself or himself"), + ("nom", "themselves", "masculine or feminine", "himself or herself"), + ("nom", "theirs", "neuter", "its"), + ("nom", "theirs", "feminine", "hers"), + ("nom", "theirs", "masculine", "his"), + ("nom", "theirs", "gender-neutral", "theirs"), + ("nom", "theirs", "feminine or masculine", "hers or his"), + ("nom", "theirs", "masculine or feminine", "his or hers"), + ("acc", "them", "neuter", "it"), + ("acc", "them", "feminine", "her"), + ("acc", "them", "masculine", "him"), + ("acc", "them", "gender-neutral", "them"), + ("acc", "them", "feminine or masculine", "her or him"), + ("acc", "them", "masculine or feminine", "him or her"), + ("acc", "themselves", "neuter", "itself"), + ("acc", "themselves", "feminine", "herself"), + ("acc", "themselves", "masculine", "himself"), + ("acc", "themselves", "gender-neutral", "themself"), + ("acc", "themselves", "feminine or masculine", "herself or himself"), + ("acc", "themselves", "masculine or feminine", "himself or herself"), +): + try: + si_pron[_thecase][_plur][_gend] = _sing # type: ignore + except TypeError: + si_pron[_thecase][_plur] = {} + si_pron[_thecase][_plur][_gend] = _sing # type: ignore + + +si_pron_acc_keys = enclose("|".join(si_pron["acc"])) +si_pron_acc_keys_bysize = bysize(si_pron["acc"]) + + +def get_si_pron(thecase, word, gender) -> str: + try: + sing = si_pron[thecase][word] + except KeyError: + raise # not a pronoun + try: + return sing[gender] # has several types due to gender + except TypeError: + return cast(str, sing) # answer independent of gender + + +# These dictionaries group verbs by first, second and third person +# conjugations. + +plverb_irregular_pres = { + "am": "are", + "are": "are", + "is": "are", + "was": "were", + "were": "were", + "have": "have", + "has": "have", + "do": "do", + "does": "do", +} + +plverb_ambiguous_pres = { + "act": "act", + "acts": "act", + "blame": "blame", + "blames": "blame", + "can": "can", + "must": "must", + "fly": "fly", + "flies": "fly", + "copy": "copy", + "copies": "copy", + "drink": "drink", + "drinks": "drink", + "fight": "fight", + "fights": "fight", + "fire": "fire", + "fires": "fire", + "like": "like", + "likes": "like", + "look": "look", + "looks": "look", + "make": "make", + "makes": "make", + "reach": "reach", + "reaches": "reach", + "run": "run", + "runs": "run", + "sink": "sink", + "sinks": "sink", + "sleep": "sleep", + "sleeps": "sleep", + "view": "view", + "views": "view", +} + +plverb_ambiguous_pres_keys = re.compile( + rf"^({enclose('|'.join(plverb_ambiguous_pres))})((\s.*)?)$", re.IGNORECASE +) + + +plverb_irregular_non_pres = ( + "did", + "had", + "ate", + "made", + "put", + "spent", + "fought", + "sank", + "gave", + "sought", + "shall", + "could", + "ought", + "should", +) + +plverb_ambiguous_non_pres = re.compile( + r"^((?:thought|saw|bent|will|might|cut))((\s.*)?)$", re.IGNORECASE +) + +# "..oes" -> "..oe" (the rest are "..oes" -> "o") + +pl_v_oes_oe = ("canoes", "floes", "oboes", "roes", "throes", "woes") +pl_v_oes_oe_endings_size4 = ("hoes", "toes") +pl_v_oes_oe_endings_size5 = ("shoes",) + + +pl_count_zero = ("0", "no", "zero", "nil") + + +pl_count_one = ("1", "a", "an", "one", "each", "every", "this", "that") + +pl_adj_special = {"a": "some", "an": "some", "this": "these", "that": "those"} + +pl_adj_special_keys = re.compile( + rf"^({enclose('|'.join(pl_adj_special))})$", re.IGNORECASE +) + +pl_adj_poss = { + "my": "our", + "your": "your", + "its": "their", + "her": "their", + "his": "their", + "their": "their", +} + +pl_adj_poss_keys = re.compile(rf"^({enclose('|'.join(pl_adj_poss))})$", re.IGNORECASE) + + +# 2. INDEFINITE ARTICLES + +# THIS PATTERN MATCHES STRINGS OF CAPITALS STARTING WITH A "VOWEL-SOUND" +# CONSONANT FOLLOWED BY ANOTHER CONSONANT, AND WHICH ARE NOT LIKELY +# TO BE REAL WORDS (OH, ALL RIGHT THEN, IT'S JUST MAGIC!) + +A_abbrev = re.compile( + r""" +^(?! FJO | [HLMNS]Y. | RY[EO] | SQU + | ( F[LR]? | [HL] | MN? | N | RH? | S[CHKLMNPTVW]? | X(YL)?) [AEIOU]) +[FHLMNRSX][A-Z] +""", + re.VERBOSE, +) + +# THIS PATTERN CODES THE BEGINNINGS OF ALL ENGLISH WORDS BEGINING WITH A +# 'y' FOLLOWED BY A CONSONANT. ANY OTHER Y-CONSONANT PREFIX THEREFORE +# IMPLIES AN ABBREVIATION. + +A_y_cons = re.compile(r"^(y(b[lor]|cl[ea]|fere|gg|p[ios]|rou|tt))", re.IGNORECASE) + +# EXCEPTIONS TO EXCEPTIONS + +A_explicit_a = re.compile(r"^((?:unabomber|unanimous|US))", re.IGNORECASE) + +A_explicit_an = re.compile( + r"^((?:euler|hour(?!i)|heir|honest|hono[ur]|mpeg))", re.IGNORECASE +) + +A_ordinal_an = re.compile(r"^([aefhilmnorsx]-?th)", re.IGNORECASE) + +A_ordinal_a = re.compile(r"^([bcdgjkpqtuvwyz]-?th)", re.IGNORECASE) + + +# NUMERICAL INFLECTIONS + +nth = { + 0: "th", + 1: "st", + 2: "nd", + 3: "rd", + 4: "th", + 5: "th", + 6: "th", + 7: "th", + 8: "th", + 9: "th", + 11: "th", + 12: "th", + 13: "th", +} +nth_suff = set(nth.values()) + +ordinal = dict( + ty="tieth", + one="first", + two="second", + three="third", + five="fifth", + eight="eighth", + nine="ninth", + twelve="twelfth", +) + +ordinal_suff = re.compile(rf"({'|'.join(ordinal)})\Z") + + +# NUMBERS + +unit = ["", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine"] +teen = [ + "ten", + "eleven", + "twelve", + "thirteen", + "fourteen", + "fifteen", + "sixteen", + "seventeen", + "eighteen", + "nineteen", +] +ten = [ + "", + "", + "twenty", + "thirty", + "forty", + "fifty", + "sixty", + "seventy", + "eighty", + "ninety", +] +mill = [ + " ", + " thousand", + " million", + " billion", + " trillion", + " quadrillion", + " quintillion", + " sextillion", + " septillion", + " octillion", + " nonillion", + " decillion", +] + + +# SUPPORT CLASSICAL PLURALIZATIONS + +def_classical = dict( + all=False, zero=False, herd=False, names=True, persons=False, ancient=False +) + +all_classical = {k: True for k in def_classical} +no_classical = {k: False for k in def_classical} + + +# Maps strings to built-in constant types +string_to_constant = {"True": True, "False": False, "None": None} + + +# Pre-compiled regular expression objects +DOLLAR_DIGITS = re.compile(r"\$(\d+)") +FUNCTION_CALL = re.compile(r"((\w+)\([^)]*\)*)", re.IGNORECASE) +PARTITION_WORD = re.compile(r"\A(\s*)(.+?)(\s*)\Z") +PL_SB_POSTFIX_ADJ_STEMS_RE = re.compile( + rf"^(?:{pl_sb_postfix_adj_stems})$", re.IGNORECASE +) +PL_SB_PREP_DUAL_COMPOUND_RE = re.compile( + rf"^(?:{pl_sb_prep_dual_compound})$", re.IGNORECASE +) +DENOMINATOR = re.compile(r"(?P.+)( (per|a) .+)") +PLVERB_SPECIAL_S_RE = re.compile(rf"^({plverb_special_s})$") +WHITESPACE = re.compile(r"\s") +ENDS_WITH_S = re.compile(r"^(.*[^s])s$", re.IGNORECASE) +ENDS_WITH_APOSTROPHE_S = re.compile(r"^(.*)'s?$") +INDEFINITE_ARTICLE_TEST = re.compile(r"\A(\s*)(?:an?\s+)?(.+?)(\s*)\Z", re.IGNORECASE) +SPECIAL_AN = re.compile(r"^[aefhilmnorsx]$", re.IGNORECASE) +SPECIAL_A = re.compile(r"^[bcdgjkpqtuvwyz]$", re.IGNORECASE) +SPECIAL_ABBREV_AN = re.compile(r"^[aefhilmnorsx][.-]", re.IGNORECASE) +SPECIAL_ABBREV_A = re.compile(r"^[a-z][.-]", re.IGNORECASE) +CONSONANTS = re.compile(r"^[^aeiouy]", re.IGNORECASE) +ARTICLE_SPECIAL_EU = re.compile(r"^e[uw]", re.IGNORECASE) +ARTICLE_SPECIAL_ONCE = re.compile(r"^onc?e\b", re.IGNORECASE) +ARTICLE_SPECIAL_ONETIME = re.compile(r"^onetime\b", re.IGNORECASE) +ARTICLE_SPECIAL_UNIT = re.compile(r"^uni([^nmd]|mo)", re.IGNORECASE) +ARTICLE_SPECIAL_UBA = re.compile(r"^u[bcfghjkqrst][aeiou]", re.IGNORECASE) +ARTICLE_SPECIAL_UKR = re.compile(r"^ukr", re.IGNORECASE) +SPECIAL_CAPITALS = re.compile(r"^U[NK][AIEO]?") +VOWELS = re.compile(r"^[aeiou]", re.IGNORECASE) + +DIGIT_GROUP = re.compile(r"(\d)") +TWO_DIGITS = re.compile(r"(\d)(\d)") +THREE_DIGITS = re.compile(r"(\d)(\d)(\d)") +THREE_DIGITS_WORD = re.compile(r"(\d)(\d)(\d)(?=\D*\Z)") +TWO_DIGITS_WORD = re.compile(r"(\d)(\d)(?=\D*\Z)") +ONE_DIGIT_WORD = re.compile(r"(\d)(?=\D*\Z)") + +FOUR_DIGIT_COMMA = re.compile(r"(\d)(\d{3}(?:,|\Z))") +NON_DIGIT = re.compile(r"\D") +WHITESPACES_COMMA = re.compile(r"\s+,") +COMMA_WORD = re.compile(r", (\S+)\s+\Z") +WHITESPACES = re.compile(r"\s+") + + +PRESENT_PARTICIPLE_REPLACEMENTS = ( + (re.compile(r"ie$"), r"y"), + ( + re.compile(r"ue$"), + r"u", + ), # TODO: isn't ue$ -> u encompassed in the following rule? + (re.compile(r"([auy])e$"), r"\g<1>"), + (re.compile(r"ski$"), r"ski"), + (re.compile(r"[^b]i$"), r""), + (re.compile(r"^(are|were)$"), r"be"), + (re.compile(r"^(had)$"), r"hav"), + (re.compile(r"^(hoe)$"), r"\g<1>"), + (re.compile(r"([^e])e$"), r"\g<1>"), + (re.compile(r"er$"), r"er"), + (re.compile(r"([^aeiou][aeiouy]([bdgmnprst]))$"), r"\g<1>\g<2>"), +) + +DIGIT = re.compile(r"\d") + + +class Words(str): + lowered: str + split_: List[str] + first: str + last: str + + def __init__(self, orig) -> None: + self.lowered = self.lower() + self.split_ = self.split() + self.first = self.split_[0] + self.last = self.split_[-1] + + +Falsish = Any # ideally, falsish would only validate on bool(value) is False + + +_STATIC_TYPE_CHECKING = TYPE_CHECKING +# ^-- Workaround for typeguard AST manipulation: +# https://github.com/agronholm/typeguard/issues/353#issuecomment-1556306554 + +if _STATIC_TYPE_CHECKING: # pragma: no cover + Word = Annotated[str, "String with at least 1 character"] +else: + + class _WordMeta(type): # Too dynamic to be supported by mypy... + def __instancecheck__(self, instance: Any) -> bool: + return isinstance(instance, str) and len(instance) >= 1 + + class Word(metaclass=_WordMeta): # type: ignore[no-redef] + """String with at least 1 character""" + + +class engine: + def __init__(self) -> None: + self.classical_dict = def_classical.copy() + self.persistent_count: Optional[int] = None + self.mill_count = 0 + self.pl_sb_user_defined: List[Optional[Word]] = [] + self.pl_v_user_defined: List[Optional[Word]] = [] + self.pl_adj_user_defined: List[Optional[Word]] = [] + self.si_sb_user_defined: List[Optional[Word]] = [] + self.A_a_user_defined: List[Optional[Word]] = [] + self.thegender = "neuter" + self.__number_args: Optional[Dict[str, str]] = None + + @property + def _number_args(self): + return cast(Dict[str, str], self.__number_args) + + @_number_args.setter + def _number_args(self, val): + self.__number_args = val + + @typechecked + def defnoun(self, singular: Optional[Word], plural: Optional[Word]) -> int: + """ + Set the noun plural of singular to plural. + + """ + self.checkpat(singular) + self.checkpatplural(plural) + self.pl_sb_user_defined.extend((singular, plural)) + self.si_sb_user_defined.extend((plural, singular)) + return 1 + + @typechecked + def defverb( + self, + s1: Optional[Word], + p1: Optional[Word], + s2: Optional[Word], + p2: Optional[Word], + s3: Optional[Word], + p3: Optional[Word], + ) -> int: + """ + Set the verb plurals for s1, s2 and s3 to p1, p2 and p3 respectively. + + Where 1, 2 and 3 represent the 1st, 2nd and 3rd person forms of the verb. + + """ + self.checkpat(s1) + self.checkpat(s2) + self.checkpat(s3) + self.checkpatplural(p1) + self.checkpatplural(p2) + self.checkpatplural(p3) + self.pl_v_user_defined.extend((s1, p1, s2, p2, s3, p3)) + return 1 + + @typechecked + def defadj(self, singular: Optional[Word], plural: Optional[Word]) -> int: + """ + Set the adjective plural of singular to plural. + + """ + self.checkpat(singular) + self.checkpatplural(plural) + self.pl_adj_user_defined.extend((singular, plural)) + return 1 + + @typechecked + def defa(self, pattern: Optional[Word]) -> int: + """ + Define the indefinite article as 'a' for words matching pattern. + + """ + self.checkpat(pattern) + self.A_a_user_defined.extend((pattern, "a")) + return 1 + + @typechecked + def defan(self, pattern: Optional[Word]) -> int: + """ + Define the indefinite article as 'an' for words matching pattern. + + """ + self.checkpat(pattern) + self.A_a_user_defined.extend((pattern, "an")) + return 1 + + def checkpat(self, pattern: Optional[Word]) -> None: + """ + check for errors in a regex pattern + """ + if pattern is None: + return + try: + re.match(pattern, "") + except re.error as err: + raise BadUserDefinedPatternError(pattern) from err + + def checkpatplural(self, pattern: Optional[Word]) -> None: + """ + check for errors in a regex replace pattern + """ + return + + @typechecked + def ud_match(self, word: Word, wordlist: Sequence[Optional[Word]]) -> Optional[str]: + for i in range(len(wordlist) - 2, -2, -2): # backwards through even elements + mo = re.search(rf"^{wordlist[i]}$", word, re.IGNORECASE) + if mo: + if wordlist[i + 1] is None: + return None + pl = DOLLAR_DIGITS.sub( + r"\\1", cast(Word, wordlist[i + 1]) + ) # change $n to \n for expand + return mo.expand(pl) + return None + + def classical(self, **kwargs) -> None: + """ + turn classical mode on and off for various categories + + turn on all classical modes: + classical() + classical(all=True) + + turn on or off specific claassical modes: + e.g. + classical(herd=True) + classical(names=False) + + By default all classical modes are off except names. + + unknown value in args or key in kwargs raises + exception: UnknownClasicalModeError + + """ + if not kwargs: + self.classical_dict = all_classical.copy() + return + if "all" in kwargs: + if kwargs["all"]: + self.classical_dict = all_classical.copy() + else: + self.classical_dict = no_classical.copy() + + for k, v in kwargs.items(): + if k in def_classical: + self.classical_dict[k] = v + else: + raise UnknownClassicalModeError + + def num( + self, count: Optional[int] = None, show: Optional[int] = None + ) -> str: # (;$count,$show) + """ + Set the number to be used in other method calls. + + Returns count. + + Set show to False to return '' instead. + + """ + if count is not None: + try: + self.persistent_count = int(count) + except ValueError as err: + raise BadNumValueError from err + if (show is None) or show: + return str(count) + else: + self.persistent_count = None + return "" + + def gender(self, gender: str) -> None: + """ + set the gender for the singular of plural pronouns + + can be one of: + 'neuter' ('they' -> 'it') + 'feminine' ('they' -> 'she') + 'masculine' ('they' -> 'he') + 'gender-neutral' ('they' -> 'they') + 'feminine or masculine' ('they' -> 'she or he') + 'masculine or feminine' ('they' -> 'he or she') + """ + if gender in singular_pronoun_genders: + self.thegender = gender + else: + raise BadGenderError + + def _get_value_from_ast(self, obj): + """ + Return the value of the ast object. + """ + if isinstance(obj, ast.Num): + return obj.n + elif isinstance(obj, ast.Str): + return obj.s + elif isinstance(obj, ast.List): + return [self._get_value_from_ast(e) for e in obj.elts] + elif isinstance(obj, ast.Tuple): + return tuple([self._get_value_from_ast(e) for e in obj.elts]) + + # None, True and False are NameConstants in Py3.4 and above. + elif isinstance(obj, ast.NameConstant): + return obj.value + + # Probably passed a variable name. + # Or passed a single word without wrapping it in quotes as an argument + # ex: p.inflect("I plural(see)") instead of p.inflect("I plural('see')") + raise NameError(f"name '{obj.id}' is not defined") + + def _string_to_substitute( + self, mo: Match, methods_dict: Dict[str, Callable] + ) -> str: + """ + Return the string to be substituted for the match. + """ + matched_text, f_name = mo.groups() + # matched_text is the complete match string. e.g. plural_noun(cat) + # f_name is the function name. e.g. plural_noun + + # Return matched_text if function name is not in methods_dict + if f_name not in methods_dict: + return matched_text + + # Parse the matched text + a_tree = ast.parse(matched_text) + + # get the args and kwargs from ast objects + args_list = [ + self._get_value_from_ast(a) + for a in a_tree.body[0].value.args # type: ignore[attr-defined] + ] + kwargs_list = { + kw.arg: self._get_value_from_ast(kw.value) + for kw in a_tree.body[0].value.keywords # type: ignore[attr-defined] + } + + # Call the corresponding function + return methods_dict[f_name](*args_list, **kwargs_list) + + # 0. PERFORM GENERAL INFLECTIONS IN A STRING + + @typechecked + def inflect(self, text: Word) -> str: + """ + Perform inflections in a string. + + e.g. inflect('The plural of cat is plural(cat)') returns + 'The plural of cat is cats' + + can use plural, plural_noun, plural_verb, plural_adj, + singular_noun, a, an, no, ordinal, number_to_words, + and prespart + + """ + save_persistent_count = self.persistent_count + + # Dictionary of allowed methods + methods_dict: Dict[str, Callable] = { + "plural": self.plural, + "plural_adj": self.plural_adj, + "plural_noun": self.plural_noun, + "plural_verb": self.plural_verb, + "singular_noun": self.singular_noun, + "a": self.a, + "an": self.a, + "no": self.no, + "ordinal": self.ordinal, + "number_to_words": self.number_to_words, + "present_participle": self.present_participle, + "num": self.num, + } + + # Regular expression to find Python's function call syntax + output = FUNCTION_CALL.sub( + lambda mo: self._string_to_substitute(mo, methods_dict), text + ) + self.persistent_count = save_persistent_count + return output + + # ## PLURAL SUBROUTINES + + def postprocess(self, orig: str, inflected) -> str: + inflected = str(inflected) + if "|" in inflected: + word_options = inflected.split("|") + # When two parts of a noun need to be pluralized + if len(word_options[0].split(" ")) == len(word_options[1].split(" ")): + result = inflected.split("|")[self.classical_dict["all"]].split(" ") + # When only the last part of the noun needs to be pluralized + else: + result = inflected.split(" ") + for index, word in enumerate(result): + if "|" in word: + result[index] = word.split("|")[self.classical_dict["all"]] + else: + result = inflected.split(" ") + + # Try to fix word wise capitalization + for index, word in enumerate(orig.split(" ")): + if word == "I": + # Is this the only word for exceptions like this + # Where the original is fully capitalized + # without 'meaning' capitalization? + # Also this fails to handle a capitalizaion in context + continue + if word.capitalize() == word: + result[index] = result[index].capitalize() + if word == word.upper(): + result[index] = result[index].upper() + return " ".join(result) + + def partition_word(self, text: str) -> Tuple[str, str, str]: + mo = PARTITION_WORD.search(text) + if mo: + return mo.group(1), mo.group(2), mo.group(3) + else: + return "", "", "" + + @typechecked + def plural(self, text: Word, count: Optional[Union[str, int, Any]] = None) -> str: + """ + Return the plural of text. + + If count supplied, then return text if count is one of: + 1, a, an, one, each, every, this, that + + otherwise return the plural. + + Whitespace at the start and end is preserved. + + """ + pre, word, post = self.partition_word(text) + if not word: + return text + plural = self.postprocess( + word, + self._pl_special_adjective(word, count) + or self._pl_special_verb(word, count) + or self._plnoun(word, count), + ) + return f"{pre}{plural}{post}" + + @typechecked + def plural_noun( + self, text: Word, count: Optional[Union[str, int, Any]] = None + ) -> str: + """ + Return the plural of text, where text is a noun. + + If count supplied, then return text if count is one of: + 1, a, an, one, each, every, this, that + + otherwise return the plural. + + Whitespace at the start and end is preserved. + + """ + pre, word, post = self.partition_word(text) + if not word: + return text + plural = self.postprocess(word, self._plnoun(word, count)) + return f"{pre}{plural}{post}" + + @typechecked + def plural_verb( + self, text: Word, count: Optional[Union[str, int, Any]] = None + ) -> str: + """ + Return the plural of text, where text is a verb. + + If count supplied, then return text if count is one of: + 1, a, an, one, each, every, this, that + + otherwise return the plural. + + Whitespace at the start and end is preserved. + + """ + pre, word, post = self.partition_word(text) + if not word: + return text + plural = self.postprocess( + word, + self._pl_special_verb(word, count) or self._pl_general_verb(word, count), + ) + return f"{pre}{plural}{post}" + + @typechecked + def plural_adj( + self, text: Word, count: Optional[Union[str, int, Any]] = None + ) -> str: + """ + Return the plural of text, where text is an adjective. + + If count supplied, then return text if count is one of: + 1, a, an, one, each, every, this, that + + otherwise return the plural. + + Whitespace at the start and end is preserved. + + """ + pre, word, post = self.partition_word(text) + if not word: + return text + plural = self.postprocess(word, self._pl_special_adjective(word, count) or word) + return f"{pre}{plural}{post}" + + @typechecked + def compare(self, word1: Word, word2: Word) -> Union[str, bool]: + """ + compare word1 and word2 for equality regardless of plurality + + return values: + eq - the strings are equal + p:s - word1 is the plural of word2 + s:p - word2 is the plural of word1 + p:p - word1 and word2 are two different plural forms of the one word + False - otherwise + + >>> compare = engine().compare + >>> compare("egg", "eggs") + 's:p' + >>> compare('egg', 'egg') + 'eq' + + Words should not be empty. + + >>> compare('egg', '') + Traceback (most recent call last): + ... + typeguard.TypeCheckError:...is not an instance of inflect.Word + """ + norms = self.plural_noun, self.plural_verb, self.plural_adj + results = (self._plequal(word1, word2, norm) for norm in norms) + return next(filter(None, results), False) + + @typechecked + def compare_nouns(self, word1: Word, word2: Word) -> Union[str, bool]: + """ + compare word1 and word2 for equality regardless of plurality + word1 and word2 are to be treated as nouns + + return values: + eq - the strings are equal + p:s - word1 is the plural of word2 + s:p - word2 is the plural of word1 + p:p - word1 and word2 are two different plural forms of the one word + False - otherwise + + """ + return self._plequal(word1, word2, self.plural_noun) + + @typechecked + def compare_verbs(self, word1: Word, word2: Word) -> Union[str, bool]: + """ + compare word1 and word2 for equality regardless of plurality + word1 and word2 are to be treated as verbs + + return values: + eq - the strings are equal + p:s - word1 is the plural of word2 + s:p - word2 is the plural of word1 + p:p - word1 and word2 are two different plural forms of the one word + False - otherwise + + """ + return self._plequal(word1, word2, self.plural_verb) + + @typechecked + def compare_adjs(self, word1: Word, word2: Word) -> Union[str, bool]: + """ + compare word1 and word2 for equality regardless of plurality + word1 and word2 are to be treated as adjectives + + return values: + eq - the strings are equal + p:s - word1 is the plural of word2 + s:p - word2 is the plural of word1 + p:p - word1 and word2 are two different plural forms of the one word + False - otherwise + + """ + return self._plequal(word1, word2, self.plural_adj) + + @typechecked + def singular_noun( + self, + text: Word, + count: Optional[Union[int, str, Any]] = None, + gender: Optional[str] = None, + ) -> Union[str, Literal[False]]: + """ + Return the singular of text, where text is a plural noun. + + If count supplied, then return the singular if count is one of: + 1, a, an, one, each, every, this, that or if count is None + + otherwise return text unchanged. + + Whitespace at the start and end is preserved. + + >>> p = engine() + >>> p.singular_noun('horses') + 'horse' + >>> p.singular_noun('knights') + 'knight' + + Returns False when a singular noun is passed. + + >>> p.singular_noun('horse') + False + >>> p.singular_noun('knight') + False + >>> p.singular_noun('soldier') + False + + """ + pre, word, post = self.partition_word(text) + if not word: + return text + sing = self._sinoun(word, count=count, gender=gender) + if sing is not False: + plural = self.postprocess(word, sing) + return f"{pre}{plural}{post}" + return False + + def _plequal(self, word1: str, word2: str, pl) -> Union[str, bool]: # noqa: C901 + classval = self.classical_dict.copy() + self.classical_dict = all_classical.copy() + if word1 == word2: + return "eq" + if word1 == pl(word2): + return "p:s" + if pl(word1) == word2: + return "s:p" + self.classical_dict = no_classical.copy() + if word1 == pl(word2): + return "p:s" + if pl(word1) == word2: + return "s:p" + self.classical_dict = classval.copy() + + if pl == self.plural or pl == self.plural_noun: + if self._pl_check_plurals_N(word1, word2): + return "p:p" + if self._pl_check_plurals_N(word2, word1): + return "p:p" + if pl == self.plural or pl == self.plural_adj: + if self._pl_check_plurals_adj(word1, word2): + return "p:p" + return False + + def _pl_reg_plurals(self, pair: str, stems: str, end1: str, end2: str) -> bool: + pattern = rf"({stems})({end1}\|\1{end2}|{end2}\|\1{end1})" + return bool(re.search(pattern, pair)) + + def _pl_check_plurals_N(self, word1: str, word2: str) -> bool: + stem_endings = ( + (pl_sb_C_a_ata, "as", "ata"), + (pl_sb_C_is_ides, "is", "ides"), + (pl_sb_C_a_ae, "s", "e"), + (pl_sb_C_en_ina, "ens", "ina"), + (pl_sb_C_um_a, "ums", "a"), + (pl_sb_C_us_i, "uses", "i"), + (pl_sb_C_on_a, "ons", "a"), + (pl_sb_C_o_i_stems, "os", "i"), + (pl_sb_C_ex_ices, "exes", "ices"), + (pl_sb_C_ix_ices, "ixes", "ices"), + (pl_sb_C_i, "s", "i"), + (pl_sb_C_im, "s", "im"), + (".*eau", "s", "x"), + (".*ieu", "s", "x"), + (".*tri", "xes", "ces"), + (".{2,}[yia]n", "xes", "ges"), + ) + + words = map(Words, (word1, word2)) + pair = "|".join(word.last for word in words) + + return ( + pair in pl_sb_irregular_s.values() + or pair in pl_sb_irregular.values() + or pair in pl_sb_irregular_caps.values() + or any( + self._pl_reg_plurals(pair, stems, end1, end2) + for stems, end1, end2 in stem_endings + ) + ) + + def _pl_check_plurals_adj(self, word1: str, word2: str) -> bool: + word1a = word1[: word1.rfind("'")] if word1.endswith(("'s", "'")) else "" + word2a = word2[: word2.rfind("'")] if word2.endswith(("'s", "'")) else "" + + return ( + bool(word1a) + and bool(word2a) + and ( + self._pl_check_plurals_N(word1a, word2a) + or self._pl_check_plurals_N(word2a, word1a) + ) + ) + + def get_count(self, count: Optional[Union[str, int]] = None) -> Union[str, int]: + if count is None and self.persistent_count is not None: + count = self.persistent_count + + if count is not None: + count = ( + 1 + if ( + (str(count) in pl_count_one) + or ( + self.classical_dict["zero"] + and str(count).lower() in pl_count_zero + ) + ) + else 2 + ) + else: + count = "" + return count + + # @profile + def _plnoun( # noqa: C901 + self, word: str, count: Optional[Union[str, int]] = None + ) -> str: + count = self.get_count(count) + + # DEFAULT TO PLURAL + + if count == 1: + return word + + # HANDLE USER-DEFINED NOUNS + + value = self.ud_match(word, self.pl_sb_user_defined) + if value is not None: + return value + + # HANDLE EMPTY WORD, SINGULAR COUNT AND UNINFLECTED PLURALS + + if word == "": + return word + + word = Words(word) + + if word.last.lower() in pl_sb_uninflected_complete: + if len(word.split_) >= 3: + return self._handle_long_compounds(word, count=2) or word + return word + + if word in pl_sb_uninflected_caps: + return word + + for k, v in pl_sb_uninflected_bysize.items(): + if word.lowered[-k:] in v: + return word + + if self.classical_dict["herd"] and word.last.lower() in pl_sb_uninflected_herd: + return word + + # HANDLE COMPOUNDS ("Governor General", "mother-in-law", "aide-de-camp", ETC.) + + mo = PL_SB_POSTFIX_ADJ_STEMS_RE.search(word) + if mo and mo.group(2) != "": + return f"{self._plnoun(mo.group(1), 2)}{mo.group(2)}" + + if " a " in word.lowered or "-a-" in word.lowered: + mo = PL_SB_PREP_DUAL_COMPOUND_RE.search(word) + if mo and mo.group(2) != "" and mo.group(3) != "": + return ( + f"{self._plnoun(mo.group(1), 2)}" + f"{mo.group(2)}" + f"{self._plnoun(mo.group(3))}" + ) + + if len(word.split_) >= 3: + handled_words = self._handle_long_compounds(word, count=2) + if handled_words is not None: + return handled_words + + # only pluralize denominators in units + mo = DENOMINATOR.search(word.lowered) + if mo: + index = len(mo.group("denominator")) + return f"{self._plnoun(word[:index])}{word[index:]}" + + # handle units given in degrees (only accept if + # there is no more than one word following) + # degree Celsius => degrees Celsius but degree + # fahrenheit hour => degree fahrenheit hours + if len(word.split_) >= 2 and word.split_[-2] == "degree": + return " ".join([self._plnoun(word.first)] + word.split_[1:]) + + with contextlib.suppress(ValueError): + return self._handle_prepositional_phrase( + word.lowered, + functools.partial(self._plnoun, count=2), + '-', + ) + + # HANDLE PRONOUNS + + for k, v in pl_pron_acc_keys_bysize.items(): + if word.lowered[-k:] in v: # ends with accusative pronoun + for pk, pv in pl_prep_bysize.items(): + if word.lowered[:pk] in pv: # starts with a prep + if word.lowered.split() == [ + word.lowered[:pk], + word.lowered[-k:], + ]: + # only whitespace in between + return word.lowered[:-k] + pl_pron_acc[word.lowered[-k:]] + + try: + return pl_pron_nom[word.lowered] + except KeyError: + pass + + try: + return pl_pron_acc[word.lowered] + except KeyError: + pass + + # HANDLE ISOLATED IRREGULAR PLURALS + + if word.last in pl_sb_irregular_caps: + llen = len(word.last) + return f"{word[:-llen]}{pl_sb_irregular_caps[word.last]}" + + lowered_last = word.last.lower() + if lowered_last in pl_sb_irregular: + llen = len(lowered_last) + return f"{word[:-llen]}{pl_sb_irregular[lowered_last]}" + + dash_split = word.lowered.split('-') + if (" ".join(dash_split[-2:])).lower() in pl_sb_irregular_compound: + llen = len( + " ".join(dash_split[-2:]) + ) # TODO: what if 2 spaces between these words? + return ( + f"{word[:-llen]}" + f"{pl_sb_irregular_compound[(' '.join(dash_split[-2:])).lower()]}" + ) + + if word.lowered[-3:] == "quy": + return f"{word[:-1]}ies" + + if word.lowered[-6:] == "person": + if self.classical_dict["persons"]: + return f"{word}s" + else: + return f"{word[:-4]}ople" + + # HANDLE FAMILIES OF IRREGULAR PLURALS + + if word.lowered[-3:] == "man": + for k, v in pl_sb_U_man_mans_bysize.items(): + if word.lowered[-k:] in v: + return f"{word}s" + for k, v in pl_sb_U_man_mans_caps_bysize.items(): + if word[-k:] in v: + return f"{word}s" + return f"{word[:-3]}men" + if word.lowered[-5:] == "mouse": + return f"{word[:-5]}mice" + if word.lowered[-5:] == "louse": + v = pl_sb_U_louse_lice_bysize.get(len(word)) + if v and word.lowered in v: + return f"{word[:-5]}lice" + return f"{word}s" + if word.lowered[-5:] == "goose": + return f"{word[:-5]}geese" + if word.lowered[-5:] == "tooth": + return f"{word[:-5]}teeth" + if word.lowered[-4:] == "foot": + return f"{word[:-4]}feet" + if word.lowered[-4:] == "taco": + return f"{word[:-5]}tacos" + + if word.lowered == "die": + return "dice" + + # HANDLE UNASSIMILATED IMPORTS + + if word.lowered[-4:] == "ceps": + return word + if word.lowered[-4:] == "zoon": + return f"{word[:-2]}a" + if word.lowered[-3:] in ("cis", "sis", "xis"): + return f"{word[:-2]}es" + + for lastlet, d, numend, post in ( + ("h", pl_sb_U_ch_chs_bysize, None, "s"), + ("x", pl_sb_U_ex_ices_bysize, -2, "ices"), + ("x", pl_sb_U_ix_ices_bysize, -2, "ices"), + ("m", pl_sb_U_um_a_bysize, -2, "a"), + ("s", pl_sb_U_us_i_bysize, -2, "i"), + ("n", pl_sb_U_on_a_bysize, -2, "a"), + ("a", pl_sb_U_a_ae_bysize, None, "e"), + ): + if word.lowered[-1] == lastlet: # this test to add speed + for k, v in d.items(): + if word.lowered[-k:] in v: + return word[:numend] + post + + # HANDLE INCOMPLETELY ASSIMILATED IMPORTS + + if self.classical_dict["ancient"]: + if word.lowered[-4:] == "trix": + return f"{word[:-1]}ces" + if word.lowered[-3:] in ("eau", "ieu"): + return f"{word}x" + if word.lowered[-3:] in ("ynx", "inx", "anx") and len(word) > 4: + return f"{word[:-1]}ges" + + for lastlet, d, numend, post in ( + ("n", pl_sb_C_en_ina_bysize, -2, "ina"), + ("x", pl_sb_C_ex_ices_bysize, -2, "ices"), + ("x", pl_sb_C_ix_ices_bysize, -2, "ices"), + ("m", pl_sb_C_um_a_bysize, -2, "a"), + ("s", pl_sb_C_us_i_bysize, -2, "i"), + ("s", pl_sb_C_us_us_bysize, None, ""), + ("a", pl_sb_C_a_ae_bysize, None, "e"), + ("a", pl_sb_C_a_ata_bysize, None, "ta"), + ("s", pl_sb_C_is_ides_bysize, -1, "des"), + ("o", pl_sb_C_o_i_bysize, -1, "i"), + ("n", pl_sb_C_on_a_bysize, -2, "a"), + ): + if word.lowered[-1] == lastlet: # this test to add speed + for k, v in d.items(): + if word.lowered[-k:] in v: + return word[:numend] + post + + for d, numend, post in ( + (pl_sb_C_i_bysize, None, "i"), + (pl_sb_C_im_bysize, None, "im"), + ): + for k, v in d.items(): + if word.lowered[-k:] in v: + return word[:numend] + post + + # HANDLE SINGULAR NOUNS ENDING IN ...s OR OTHER SILIBANTS + + if lowered_last in pl_sb_singular_s_complete: + return f"{word}es" + + for k, v in pl_sb_singular_s_bysize.items(): + if word.lowered[-k:] in v: + return f"{word}es" + + if word.lowered[-2:] == "es" and word[0] == word[0].upper(): + return f"{word}es" + + if word.lowered[-1] == "z": + for k, v in pl_sb_z_zes_bysize.items(): + if word.lowered[-k:] in v: + return f"{word}es" + + if word.lowered[-2:-1] != "z": + return f"{word}zes" + + if word.lowered[-2:] == "ze": + for k, v in pl_sb_ze_zes_bysize.items(): + if word.lowered[-k:] in v: + return f"{word}s" + + if word.lowered[-2:] in ("ch", "sh", "zz", "ss") or word.lowered[-1] == "x": + return f"{word}es" + + # HANDLE ...f -> ...ves + + if word.lowered[-3:] in ("elf", "alf", "olf"): + return f"{word[:-1]}ves" + if word.lowered[-3:] == "eaf" and word.lowered[-4:-3] != "d": + return f"{word[:-1]}ves" + if word.lowered[-4:] in ("nife", "life", "wife"): + return f"{word[:-2]}ves" + if word.lowered[-3:] == "arf": + return f"{word[:-1]}ves" + + # HANDLE ...y + + if word.lowered[-1] == "y": + if word.lowered[-2:-1] in "aeiou" or len(word) == 1: + return f"{word}s" + + if self.classical_dict["names"]: + if word.lowered[-1] == "y" and word[0] == word[0].upper(): + return f"{word}s" + + return f"{word[:-1]}ies" + + # HANDLE ...o + + if lowered_last in pl_sb_U_o_os_complete: + return f"{word}s" + + for k, v in pl_sb_U_o_os_bysize.items(): + if word.lowered[-k:] in v: + return f"{word}s" + + if word.lowered[-2:] in ("ao", "eo", "io", "oo", "uo"): + return f"{word}s" + + if word.lowered[-1] == "o": + return f"{word}es" + + # OTHERWISE JUST ADD ...s + + return f"{word}s" + + @classmethod + def _handle_prepositional_phrase(cls, phrase, transform, sep): + """ + Given a word or phrase possibly separated by sep, parse out + the prepositional phrase and apply the transform to the word + preceding the prepositional phrase. + + Raise ValueError if the pivot is not found or if at least two + separators are not found. + + >>> engine._handle_prepositional_phrase("man-of-war", str.upper, '-') + 'MAN-of-war' + >>> engine._handle_prepositional_phrase("man of war", str.upper, ' ') + 'MAN of war' + """ + parts = phrase.split(sep) + if len(parts) < 3: + raise ValueError("Cannot handle words with fewer than two separators") + + pivot = cls._find_pivot(parts, pl_prep_list_da) + + transformed = transform(parts[pivot - 1]) or parts[pivot - 1] + return " ".join( + parts[: pivot - 1] + [sep.join([transformed, parts[pivot], ''])] + ) + " ".join(parts[(pivot + 1) :]) + + def _handle_long_compounds(self, word: Words, count: int) -> Union[str, None]: + """ + Handles the plural and singular for compound `Words` that + have three or more words, based on the given count. + + >>> engine()._handle_long_compounds(Words("pair of scissors"), 2) + 'pairs of scissors' + >>> engine()._handle_long_compounds(Words("men beyond hills"), 1) + 'man beyond hills' + """ + inflection = self._sinoun if count == 1 else self._plnoun + solutions = ( # type: ignore + " ".join( + itertools.chain( + leader, + [inflection(cand, count), prep], # type: ignore + trailer, + ) + ) + for leader, (cand, prep), trailer in windowed_complete(word.split_, 2) + if prep in pl_prep_list_da # type: ignore + ) + return next(solutions, None) + + @staticmethod + def _find_pivot(words, candidates): + pivots = ( + index for index in range(1, len(words) - 1) if words[index] in candidates + ) + try: + return next(pivots) + except StopIteration: + raise ValueError("No pivot found") from None + + def _pl_special_verb( # noqa: C901 + self, word: str, count: Optional[Union[str, int]] = None + ) -> Union[str, bool]: + if self.classical_dict["zero"] and str(count).lower() in pl_count_zero: + return False + count = self.get_count(count) + + if count == 1: + return word + + # HANDLE USER-DEFINED VERBS + + value = self.ud_match(word, self.pl_v_user_defined) + if value is not None: + return value + + # HANDLE IRREGULAR PRESENT TENSE (SIMPLE AND COMPOUND) + + try: + words = Words(word) + except IndexError: + return False # word is '' + + if words.first in plverb_irregular_pres: + return f"{plverb_irregular_pres[words.first]}{words[len(words.first) :]}" + + # HANDLE IRREGULAR FUTURE, PRETERITE AND PERFECT TENSES + + if words.first in plverb_irregular_non_pres: + return word + + # HANDLE PRESENT NEGATIONS (SIMPLE AND COMPOUND) + + if words.first.endswith("n't") and words.first[:-3] in plverb_irregular_pres: + return ( + f"{plverb_irregular_pres[words.first[:-3]]}n't" + f"{words[len(words.first) :]}" + ) + + if words.first.endswith("n't"): + return word + + # HANDLE SPECIAL CASES + + mo = PLVERB_SPECIAL_S_RE.search(word) + if mo: + return False + if WHITESPACE.search(word): + return False + + if words.lowered == "quizzes": + return "quiz" + + # HANDLE STANDARD 3RD PERSON (CHOP THE ...(e)s OFF SINGLE WORDS) + + if ( + words.lowered[-4:] in ("ches", "shes", "zzes", "sses") + or words.lowered[-3:] == "xes" + ): + return words[:-2] + + if words.lowered[-3:] == "ies" and len(words) > 3: + return words.lowered[:-3] + "y" + + if ( + words.last.lower() in pl_v_oes_oe + or words.lowered[-4:] in pl_v_oes_oe_endings_size4 + or words.lowered[-5:] in pl_v_oes_oe_endings_size5 + ): + return words[:-1] + + if words.lowered.endswith("oes") and len(words) > 3: + return words.lowered[:-2] + + mo = ENDS_WITH_S.search(words) + if mo: + return mo.group(1) + + # OTHERWISE, A REGULAR VERB (HANDLE ELSEWHERE) + + return False + + def _pl_general_verb( + self, word: str, count: Optional[Union[str, int]] = None + ) -> str: + count = self.get_count(count) + + if count == 1: + return word + + # HANDLE AMBIGUOUS PRESENT TENSES (SIMPLE AND COMPOUND) + + mo = plverb_ambiguous_pres_keys.search(word) + if mo: + return f"{plverb_ambiguous_pres[mo.group(1).lower()]}{mo.group(2)}" + + # HANDLE AMBIGUOUS PRETERITE AND PERFECT TENSES + + mo = plverb_ambiguous_non_pres.search(word) + if mo: + return word + + # OTHERWISE, 1st OR 2ND PERSON IS UNINFLECTED + + return word + + def _pl_special_adjective( + self, word: str, count: Optional[Union[str, int]] = None + ) -> Union[str, bool]: + count = self.get_count(count) + + if count == 1: + return word + + # HANDLE USER-DEFINED ADJECTIVES + + value = self.ud_match(word, self.pl_adj_user_defined) + if value is not None: + return value + + # HANDLE KNOWN CASES + + mo = pl_adj_special_keys.search(word) + if mo: + return pl_adj_special[mo.group(1).lower()] + + # HANDLE POSSESSIVES + + mo = pl_adj_poss_keys.search(word) + if mo: + return pl_adj_poss[mo.group(1).lower()] + + mo = ENDS_WITH_APOSTROPHE_S.search(word) + if mo: + pl = self.plural_noun(mo.group(1)) + trailing_s = "" if pl[-1] == "s" else "s" + return f"{pl}'{trailing_s}" + + # OTHERWISE, NO IDEA + + return False + + # @profile + def _sinoun( # noqa: C901 + self, + word: str, + count: Optional[Union[str, int]] = None, + gender: Optional[str] = None, + ) -> Union[str, bool]: + count = self.get_count(count) + + # DEFAULT TO PLURAL + + if count == 2: + return word + + # SET THE GENDER + + try: + if gender is None: + gender = self.thegender + elif gender not in singular_pronoun_genders: + raise BadGenderError + except (TypeError, IndexError) as err: + raise BadGenderError from err + + # HANDLE USER-DEFINED NOUNS + + value = self.ud_match(word, self.si_sb_user_defined) + if value is not None: + return value + + # HANDLE EMPTY WORD, SINGULAR COUNT AND UNINFLECTED PLURALS + + if word == "": + return word + + if word in si_sb_ois_oi_case: + return word[:-1] + + words = Words(word) + + if words.last.lower() in pl_sb_uninflected_complete: + if len(words.split_) >= 3: + return self._handle_long_compounds(words, count=1) or word + return word + + if word in pl_sb_uninflected_caps: + return word + + for k, v in pl_sb_uninflected_bysize.items(): + if words.lowered[-k:] in v: + return word + + if self.classical_dict["herd"] and words.last.lower() in pl_sb_uninflected_herd: + return word + + if words.last.lower() in pl_sb_C_us_us: + return word if self.classical_dict["ancient"] else False + + # HANDLE COMPOUNDS ("Governor General", "mother-in-law", "aide-de-camp", ETC.) + + mo = PL_SB_POSTFIX_ADJ_STEMS_RE.search(word) + if mo and mo.group(2) != "": + return f"{self._sinoun(mo.group(1), 1, gender=gender)}{mo.group(2)}" + + with contextlib.suppress(ValueError): + return self._handle_prepositional_phrase( + words.lowered, + functools.partial(self._sinoun, count=1, gender=gender), + ' ', + ) + + with contextlib.suppress(ValueError): + return self._handle_prepositional_phrase( + words.lowered, + functools.partial(self._sinoun, count=1, gender=gender), + '-', + ) + + # HANDLE PRONOUNS + + for k, v in si_pron_acc_keys_bysize.items(): + if words.lowered[-k:] in v: # ends with accusative pronoun + for pk, pv in pl_prep_bysize.items(): + if words.lowered[:pk] in pv: # starts with a prep + if words.lowered.split() == [ + words.lowered[:pk], + words.lowered[-k:], + ]: + # only whitespace in between + return words.lowered[:-k] + get_si_pron( + "acc", words.lowered[-k:], gender + ) + + try: + return get_si_pron("nom", words.lowered, gender) + except KeyError: + pass + + try: + return get_si_pron("acc", words.lowered, gender) + except KeyError: + pass + + # HANDLE ISOLATED IRREGULAR PLURALS + + if words.last in si_sb_irregular_caps: + llen = len(words.last) + return f"{word[:-llen]}{si_sb_irregular_caps[words.last]}" + + if words.last.lower() in si_sb_irregular: + llen = len(words.last.lower()) + return f"{word[:-llen]}{si_sb_irregular[words.last.lower()]}" + + dash_split = words.lowered.split("-") + if (" ".join(dash_split[-2:])).lower() in si_sb_irregular_compound: + llen = len( + " ".join(dash_split[-2:]) + ) # TODO: what if 2 spaces between these words? + return "{}{}".format( + word[:-llen], + si_sb_irregular_compound[(" ".join(dash_split[-2:])).lower()], + ) + + if words.lowered[-5:] == "quies": + return word[:-3] + "y" + + if words.lowered[-7:] == "persons": + return word[:-1] + if words.lowered[-6:] == "people": + return word[:-4] + "rson" + + # HANDLE FAMILIES OF IRREGULAR PLURALS + + if words.lowered[-4:] == "mans": + for k, v in si_sb_U_man_mans_bysize.items(): + if words.lowered[-k:] in v: + return word[:-1] + for k, v in si_sb_U_man_mans_caps_bysize.items(): + if word[-k:] in v: + return word[:-1] + if words.lowered[-3:] == "men": + return word[:-3] + "man" + if words.lowered[-4:] == "mice": + return word[:-4] + "mouse" + if words.lowered[-4:] == "lice": + v = si_sb_U_louse_lice_bysize.get(len(word)) + if v and words.lowered in v: + return word[:-4] + "louse" + if words.lowered[-5:] == "geese": + return word[:-5] + "goose" + if words.lowered[-5:] == "teeth": + return word[:-5] + "tooth" + if words.lowered[-4:] == "feet": + return word[:-4] + "foot" + + if words.lowered == "dice": + return "die" + + # HANDLE UNASSIMILATED IMPORTS + + if words.lowered[-4:] == "ceps": + return word + if words.lowered[-3:] == "zoa": + return word[:-1] + "on" + + for lastlet, d, unass_numend, post in ( + ("s", si_sb_U_ch_chs_bysize, -1, ""), + ("s", si_sb_U_ex_ices_bysize, -4, "ex"), + ("s", si_sb_U_ix_ices_bysize, -4, "ix"), + ("a", si_sb_U_um_a_bysize, -1, "um"), + ("i", si_sb_U_us_i_bysize, -1, "us"), + ("a", si_sb_U_on_a_bysize, -1, "on"), + ("e", si_sb_U_a_ae_bysize, -1, ""), + ): + if words.lowered[-1] == lastlet: # this test to add speed + for k, v in d.items(): + if words.lowered[-k:] in v: + return word[:unass_numend] + post + + # HANDLE INCOMPLETELY ASSIMILATED IMPORTS + + if self.classical_dict["ancient"]: + if words.lowered[-6:] == "trices": + return word[:-3] + "x" + if words.lowered[-4:] in ("eaux", "ieux"): + return word[:-1] + if words.lowered[-5:] in ("ynges", "inges", "anges") and len(word) > 6: + return word[:-3] + "x" + + for lastlet, d, class_numend, post in ( + ("a", si_sb_C_en_ina_bysize, -3, "en"), + ("s", si_sb_C_ex_ices_bysize, -4, "ex"), + ("s", si_sb_C_ix_ices_bysize, -4, "ix"), + ("a", si_sb_C_um_a_bysize, -1, "um"), + ("i", si_sb_C_us_i_bysize, -1, "us"), + ("s", pl_sb_C_us_us_bysize, None, ""), + ("e", si_sb_C_a_ae_bysize, -1, ""), + ("a", si_sb_C_a_ata_bysize, -2, ""), + ("s", si_sb_C_is_ides_bysize, -3, "s"), + ("i", si_sb_C_o_i_bysize, -1, "o"), + ("a", si_sb_C_on_a_bysize, -1, "on"), + ("m", si_sb_C_im_bysize, -2, ""), + ("i", si_sb_C_i_bysize, -1, ""), + ): + if words.lowered[-1] == lastlet: # this test to add speed + for k, v in d.items(): + if words.lowered[-k:] in v: + return word[:class_numend] + post + + # HANDLE PLURLS ENDING IN uses -> use + + if ( + words.lowered[-6:] == "houses" + or word in si_sb_uses_use_case + or words.last.lower() in si_sb_uses_use + ): + return word[:-1] + + # HANDLE PLURLS ENDING IN ies -> ie + + if word in si_sb_ies_ie_case or words.last.lower() in si_sb_ies_ie: + return word[:-1] + + # HANDLE PLURLS ENDING IN oes -> oe + + if ( + words.lowered[-5:] == "shoes" + or word in si_sb_oes_oe_case + or words.last.lower() in si_sb_oes_oe + ): + return word[:-1] + + # HANDLE SINGULAR NOUNS ENDING IN ...s OR OTHER SILIBANTS + + if word in si_sb_sses_sse_case or words.last.lower() in si_sb_sses_sse: + return word[:-1] + + if words.last.lower() in si_sb_singular_s_complete: + return word[:-2] + + for k, v in si_sb_singular_s_bysize.items(): + if words.lowered[-k:] in v: + return word[:-2] + + if words.lowered[-4:] == "eses" and word[0] == word[0].upper(): + return word[:-2] + + if words.last.lower() in si_sb_z_zes: + return word[:-2] + + if words.last.lower() in si_sb_zzes_zz: + return word[:-2] + + if words.lowered[-4:] == "zzes": + return word[:-3] + + if word in si_sb_ches_che_case or words.last.lower() in si_sb_ches_che: + return word[:-1] + + if words.lowered[-4:] in ("ches", "shes"): + return word[:-2] + + if words.last.lower() in si_sb_xes_xe: + return word[:-1] + + if words.lowered[-3:] == "xes": + return word[:-2] + + # HANDLE ...f -> ...ves + + if word in si_sb_ves_ve_case or words.last.lower() in si_sb_ves_ve: + return word[:-1] + + if words.lowered[-3:] == "ves": + if words.lowered[-5:-3] in ("el", "al", "ol"): + return word[:-3] + "f" + if words.lowered[-5:-3] == "ea" and word[-6:-5] != "d": + return word[:-3] + "f" + if words.lowered[-5:-3] in ("ni", "li", "wi"): + return word[:-3] + "fe" + if words.lowered[-5:-3] == "ar": + return word[:-3] + "f" + + # HANDLE ...y + + if words.lowered[-2:] == "ys": + if len(words.lowered) > 2 and words.lowered[-3] in "aeiou": + return word[:-1] + + if self.classical_dict["names"]: + if words.lowered[-2:] == "ys" and word[0] == word[0].upper(): + return word[:-1] + + if words.lowered[-3:] == "ies": + return word[:-3] + "y" + + # HANDLE ...o + + if words.lowered[-2:] == "os": + if words.last.lower() in si_sb_U_o_os_complete: + return word[:-1] + + for k, v in si_sb_U_o_os_bysize.items(): + if words.lowered[-k:] in v: + return word[:-1] + + if words.lowered[-3:] in ("aos", "eos", "ios", "oos", "uos"): + return word[:-1] + + if words.lowered[-3:] == "oes": + return word[:-2] + + # UNASSIMILATED IMPORTS FINAL RULE + + if word in si_sb_es_is: + return word[:-2] + "is" + + # OTHERWISE JUST REMOVE ...s + + if words.lowered[-1] == "s": + return word[:-1] + + # COULD NOT FIND SINGULAR + + return False + + # ADJECTIVES + + @typechecked + def a(self, text: Word, count: Optional[Union[int, str, Any]] = 1) -> str: + """ + Return the appropriate indefinite article followed by text. + + The indefinite article is either 'a' or 'an'. + + If count is not one, then return count followed by text + instead of 'a' or 'an'. + + Whitespace at the start and end is preserved. + + """ + mo = INDEFINITE_ARTICLE_TEST.search(text) + if mo: + word = mo.group(2) + if not word: + return text + pre = mo.group(1) + post = mo.group(3) + result = self._indef_article(word, count) + return f"{pre}{result}{post}" + return "" + + an = a + + _indef_article_cases = ( + # HANDLE ORDINAL FORMS + (A_ordinal_a, "a"), + (A_ordinal_an, "an"), + # HANDLE SPECIAL CASES + (A_explicit_an, "an"), + (SPECIAL_AN, "an"), + (SPECIAL_A, "a"), + # HANDLE ABBREVIATIONS + (A_abbrev, "an"), + (SPECIAL_ABBREV_AN, "an"), + (SPECIAL_ABBREV_A, "a"), + # HANDLE CONSONANTS + (CONSONANTS, "a"), + # HANDLE SPECIAL VOWEL-FORMS + (ARTICLE_SPECIAL_EU, "a"), + (ARTICLE_SPECIAL_ONCE, "a"), + (ARTICLE_SPECIAL_ONETIME, "a"), + (ARTICLE_SPECIAL_UNIT, "a"), + (ARTICLE_SPECIAL_UBA, "a"), + (ARTICLE_SPECIAL_UKR, "a"), + (A_explicit_a, "a"), + # HANDLE SPECIAL CAPITALS + (SPECIAL_CAPITALS, "a"), + # HANDLE VOWELS + (VOWELS, "an"), + # HANDLE y... + # (BEFORE CERTAIN CONSONANTS IMPLIES (UNNATURALIZED) "i.." SOUND) + (A_y_cons, "an"), + ) + + def _indef_article(self, word: str, count: Union[int, str, Any]) -> str: + mycount = self.get_count(count) + + if mycount != 1: + return f"{count} {word}" + + # HANDLE USER-DEFINED VARIANTS + + value = self.ud_match(word, self.A_a_user_defined) + if value is not None: + return f"{value} {word}" + + matches = ( + f'{article} {word}' + for regexen, article in self._indef_article_cases + if regexen.search(word) + ) + + # OTHERWISE, GUESS "a" + fallback = f'a {word}' + return next(matches, fallback) + + # 2. TRANSLATE ZERO-QUANTIFIED $word TO "no plural($word)" + + @typechecked + def no(self, text: Word, count: Optional[Union[int, str]] = None) -> str: + """ + If count is 0, no, zero or nil, return 'no' followed by the plural + of text. + + If count is one of: + 1, a, an, one, each, every, this, that + return count followed by text. + + Otherwise return count follow by the plural of text. + + In the return value count is always followed by a space. + + Whitespace at the start and end is preserved. + + """ + if count is None and self.persistent_count is not None: + count = self.persistent_count + + if count is None: + count = 0 + mo = PARTITION_WORD.search(text) + if mo: + pre = mo.group(1) + word = mo.group(2) + post = mo.group(3) + else: + pre = "" + word = "" + post = "" + + if str(count).lower() in pl_count_zero: + count = 'no' + return f"{pre}{count} {self.plural(word, count)}{post}" + + # PARTICIPLES + + @typechecked + def present_participle(self, word: Word) -> str: + """ + Return the present participle for word. + + word is the 3rd person singular verb. + + """ + plv = self.plural_verb(word, 2) + ans = plv + + for regexen, repl in PRESENT_PARTICIPLE_REPLACEMENTS: + ans, num = regexen.subn(repl, plv) + if num: + return f"{ans}ing" + return f"{ans}ing" + + # NUMERICAL INFLECTIONS + + @typechecked + def ordinal(self, num: Union[Number, Word]) -> str: + """ + Return the ordinal of num. + + >>> ordinal = engine().ordinal + >>> ordinal(1) + '1st' + >>> ordinal('one') + 'first' + """ + if DIGIT.match(str(num)): + if isinstance(num, (float, int)) and int(num) == num: + n = int(num) + else: + if "." in str(num): + try: + # numbers after decimal, + # so only need last one for ordinal + n = int(str(num)[-1]) + + except ValueError: # ends with '.', so need to use whole string + n = int(str(num)[:-1]) + else: + n = int(num) # type: ignore + try: + post = nth[n % 100] + except KeyError: + post = nth[n % 10] + return f"{num}{post}" + else: + return self._sub_ord(num) + + def millfn(self, ind: int = 0) -> str: + if ind > len(mill) - 1: + raise NumOutOfRangeError + return mill[ind] + + def unitfn(self, units: int, mindex: int = 0) -> str: + return f"{unit[units]}{self.millfn(mindex)}" + + def tenfn(self, tens, units, mindex=0) -> str: + if tens != 1: + tens_part = ten[tens] + if tens and units: + hyphen = "-" + else: + hyphen = "" + unit_part = unit[units] + mill_part = self.millfn(mindex) + return f"{tens_part}{hyphen}{unit_part}{mill_part}" + return f"{teen[units]}{mill[mindex]}" + + def hundfn(self, hundreds: int, tens: int, units: int, mindex: int) -> str: + if hundreds: + andword = f" {self._number_args['andword']} " if tens or units else "" + # use unit not unitfn as simpler + return ( + f"{unit[hundreds]} hundred{andword}" + f"{self.tenfn(tens, units)}{self.millfn(mindex)}, " + ) + if tens or units: + return f"{self.tenfn(tens, units)}{self.millfn(mindex)}, " + return "" + + def group1sub(self, mo: Match) -> str: + units = int(mo.group(1)) + if units == 1: + return f" {self._number_args['one']}, " + elif units: + return f"{unit[units]}, " + else: + return f" {self._number_args['zero']}, " + + def group1bsub(self, mo: Match) -> str: + units = int(mo.group(1)) + if units: + return f"{unit[units]}, " + else: + return f" {self._number_args['zero']}, " + + def group2sub(self, mo: Match) -> str: + tens = int(mo.group(1)) + units = int(mo.group(2)) + if tens: + return f"{self.tenfn(tens, units)}, " + if units: + return f" {self._number_args['zero']} {unit[units]}, " + return f" {self._number_args['zero']} {self._number_args['zero']}, " + + def group3sub(self, mo: Match) -> str: + hundreds = int(mo.group(1)) + tens = int(mo.group(2)) + units = int(mo.group(3)) + if hundreds == 1: + hunword = f" {self._number_args['one']}" + elif hundreds: + hunword = str(unit[hundreds]) + else: + hunword = f" {self._number_args['zero']}" + if tens: + tenword = self.tenfn(tens, units) + elif units: + tenword = f" {self._number_args['zero']} {unit[units]}" + else: + tenword = f" {self._number_args['zero']} {self._number_args['zero']}" + return f"{hunword} {tenword}, " + + def hundsub(self, mo: Match) -> str: + ret = self.hundfn( + int(mo.group(1)), int(mo.group(2)), int(mo.group(3)), self.mill_count + ) + self.mill_count += 1 + return ret + + def tensub(self, mo: Match) -> str: + return f"{self.tenfn(int(mo.group(1)), int(mo.group(2)), self.mill_count)}, " + + def unitsub(self, mo: Match) -> str: + return f"{self.unitfn(int(mo.group(1)), self.mill_count)}, " + + def enword(self, num: str, group: int) -> str: + # import pdb + # pdb.set_trace() + + if group == 1: + num = DIGIT_GROUP.sub(self.group1sub, num) + elif group == 2: + num = TWO_DIGITS.sub(self.group2sub, num) + num = DIGIT_GROUP.sub(self.group1bsub, num, 1) + elif group == 3: + num = THREE_DIGITS.sub(self.group3sub, num) + num = TWO_DIGITS.sub(self.group2sub, num, 1) + num = DIGIT_GROUP.sub(self.group1sub, num, 1) + elif int(num) == 0: + num = self._number_args["zero"] + elif int(num) == 1: + num = self._number_args["one"] + else: + num = num.lstrip().lstrip("0") + self.mill_count = 0 + # surely there's a better way to do the next bit + mo = THREE_DIGITS_WORD.search(num) + while mo: + num = THREE_DIGITS_WORD.sub(self.hundsub, num, 1) + mo = THREE_DIGITS_WORD.search(num) + num = TWO_DIGITS_WORD.sub(self.tensub, num, 1) + num = ONE_DIGIT_WORD.sub(self.unitsub, num, 1) + return num + + @staticmethod + def _sub_ord(val): + new = ordinal_suff.sub(lambda match: ordinal[match.group(1)], val) + return new + "th" * (new == val) + + @classmethod + def _chunk_num(cls, num, decimal, group): + if decimal: + max_split = -1 if group != 0 else 1 + chunks = num.split(".", max_split) + else: + chunks = [num] + return cls._remove_last_blank(chunks) + + @staticmethod + def _remove_last_blank(chunks): + """ + Remove the last item from chunks if it's a blank string. + + Return the resultant chunks and whether the last item was removed. + """ + removed = chunks[-1] == "" + result = chunks[:-1] if removed else chunks + return result, removed + + @staticmethod + def _get_sign(num): + return {'+': 'plus', '-': 'minus'}.get(num.lstrip()[0], '') + + @typechecked + def number_to_words( # noqa: C901 + self, + num: Union[Number, Word], + wantlist: bool = False, + group: int = 0, + comma: Union[Falsish, str] = ",", + andword: str = "and", + zero: str = "zero", + one: str = "one", + decimal: Union[Falsish, str] = "point", + threshold: Optional[int] = None, + ) -> Union[str, List[str]]: + """ + Return a number in words. + + group = 1, 2 or 3 to group numbers before turning into words + comma: define comma + + andword: + word for 'and'. Can be set to ''. + e.g. "one hundred and one" vs "one hundred one" + + zero: word for '0' + one: word for '1' + decimal: word for decimal point + threshold: numbers above threshold not turned into words + + parameters not remembered from last call. Departure from Perl version. + """ + self._number_args = {"andword": andword, "zero": zero, "one": one} + num = str(num) + + # Handle "stylistic" conversions (up to a given threshold)... + if threshold is not None and float(num) > threshold: + spnum = num.split(".", 1) + while comma: + (spnum[0], n) = FOUR_DIGIT_COMMA.subn(r"\1,\2", spnum[0]) + if n == 0: + break + try: + return f"{spnum[0]}.{spnum[1]}" + except IndexError: + return str(spnum[0]) + + if group < 0 or group > 3: + raise BadChunkingOptionError + + sign = self._get_sign(num) + + if num in nth_suff: + num = zero + + myord = num[-2:] in nth_suff + if myord: + num = num[:-2] + + chunks, finalpoint = self._chunk_num(num, decimal, group) + + loopstart = chunks[0] == "" + first: bool | None = not loopstart + + def _handle_chunk(chunk): + nonlocal first + + # remove all non numeric \D + chunk = NON_DIGIT.sub("", chunk) + if chunk == "": + chunk = "0" + + if group == 0 and not first: + chunk = self.enword(chunk, 1) + else: + chunk = self.enword(chunk, group) + + if chunk[-2:] == ", ": + chunk = chunk[:-2] + chunk = WHITESPACES_COMMA.sub(",", chunk) + + if group == 0 and first: + chunk = COMMA_WORD.sub(f" {andword} \\1", chunk) + chunk = WHITESPACES.sub(" ", chunk) + # chunk = re.sub(r"(\A\s|\s\Z)", self.blankfn, chunk) + chunk = chunk.strip() + if first: + first = None + return chunk + + chunks[loopstart:] = map(_handle_chunk, chunks[loopstart:]) + + numchunks = [] + if first != 0: + numchunks = chunks[0].split(f"{comma} ") + + if myord and numchunks: + numchunks[-1] = self._sub_ord(numchunks[-1]) + + for chunk in chunks[1:]: + numchunks.append(decimal) + numchunks.extend(chunk.split(f"{comma} ")) + + if finalpoint: + numchunks.append(decimal) + + if wantlist: + return [sign] * bool(sign) + numchunks + + signout = f"{sign} " if sign else "" + valout = ( + ', '.join(numchunks) + if group + else ''.join(self._render(numchunks, decimal, comma)) + ) + return signout + valout + + @staticmethod + def _render(chunks, decimal, comma): + first_item = chunks.pop(0) + yield first_item + first = decimal is None or not first_item.endswith(decimal) + for nc in chunks: + if nc == decimal: + first = False + elif first: + yield comma + yield f" {nc}" + + @typechecked + def join( + self, + words: Optional[Sequence[Word]], + sep: Optional[str] = None, + sep_spaced: bool = True, + final_sep: Optional[str] = None, + conj: str = "and", + conj_spaced: bool = True, + ) -> str: + """ + Join words into a list. + + e.g. join(['ant', 'bee', 'fly']) returns 'ant, bee, and fly' + + options: + conj: replacement for 'and' + sep: separator. default ',', unless ',' is in the list then ';' + final_sep: final separator. default ',', unless ',' is in the list then ';' + conj_spaced: boolean. Should conj have spaces around it + + """ + if not words: + return "" + if len(words) == 1: + return words[0] + + if conj_spaced: + if conj == "": + conj = " " + else: + conj = f" {conj} " + + if len(words) == 2: + return f"{words[0]}{conj}{words[1]}" + + if sep is None: + if "," in "".join(words): + sep = ";" + else: + sep = "," + if final_sep is None: + final_sep = sep + + final_sep = f"{final_sep}{conj}" + + if sep_spaced: + sep += " " + + return f"{sep.join(words[0:-1])}{final_sep}{words[-1]}" diff --git a/setuptools/_vendor/inflect/compat/__init__.py b/setuptools/_vendor/inflect/compat/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/setuptools/_vendor/inflect/compat/py38.py b/setuptools/_vendor/inflect/compat/py38.py new file mode 100644 index 0000000000..a2d01bd98f --- /dev/null +++ b/setuptools/_vendor/inflect/compat/py38.py @@ -0,0 +1,7 @@ +import sys + + +if sys.version_info > (3, 9): + from typing import Annotated +else: # pragma: no cover + from typing_extensions import Annotated # noqa: F401 diff --git a/setuptools/_vendor/inflect/py.typed b/setuptools/_vendor/inflect/py.typed new file mode 100644 index 0000000000..e69de29bb2 diff --git a/setuptools/_vendor/jaraco.collections-5.1.0.dist-info/INSTALLER b/setuptools/_vendor/jaraco.collections-5.1.0.dist-info/INSTALLER new file mode 100644 index 0000000000..a1b589e38a --- /dev/null +++ b/setuptools/_vendor/jaraco.collections-5.1.0.dist-info/INSTALLER @@ -0,0 +1 @@ +pip diff --git a/setuptools/_vendor/jaraco.collections-5.1.0.dist-info/LICENSE b/setuptools/_vendor/jaraco.collections-5.1.0.dist-info/LICENSE new file mode 100644 index 0000000000..1bb5a44356 --- /dev/null +++ b/setuptools/_vendor/jaraco.collections-5.1.0.dist-info/LICENSE @@ -0,0 +1,17 @@ +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to +deal in the Software without restriction, including without limitation the +rights to use, copy, modify, merge, publish, distribute, sublicense, and/or +sell copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS +IN THE SOFTWARE. diff --git a/setuptools/_vendor/jaraco.collections-5.1.0.dist-info/METADATA b/setuptools/_vendor/jaraco.collections-5.1.0.dist-info/METADATA new file mode 100644 index 0000000000..fe6ca5ad88 --- /dev/null +++ b/setuptools/_vendor/jaraco.collections-5.1.0.dist-info/METADATA @@ -0,0 +1,85 @@ +Metadata-Version: 2.1 +Name: jaraco.collections +Version: 5.1.0 +Summary: Collection objects similar to those in stdlib by jaraco +Author-email: "Jason R. Coombs" +Project-URL: Source, https://github.com/jaraco/jaraco.collections +Classifier: Development Status :: 5 - Production/Stable +Classifier: Intended Audience :: Developers +Classifier: License :: OSI Approved :: MIT License +Classifier: Programming Language :: Python :: 3 +Classifier: Programming Language :: Python :: 3 :: Only +Requires-Python: >=3.8 +Description-Content-Type: text/x-rst +License-File: LICENSE +Requires-Dist: jaraco.text +Provides-Extra: check +Requires-Dist: pytest-checkdocs >=2.4 ; extra == 'check' +Requires-Dist: pytest-ruff >=0.2.1 ; (sys_platform != "cygwin") and extra == 'check' +Provides-Extra: cover +Requires-Dist: pytest-cov ; extra == 'cover' +Provides-Extra: doc +Requires-Dist: sphinx >=3.5 ; extra == 'doc' +Requires-Dist: jaraco.packaging >=9.3 ; extra == 'doc' +Requires-Dist: rst.linker >=1.9 ; extra == 'doc' +Requires-Dist: furo ; extra == 'doc' +Requires-Dist: sphinx-lint ; extra == 'doc' +Requires-Dist: jaraco.tidelift >=1.4 ; extra == 'doc' +Provides-Extra: enabler +Requires-Dist: pytest-enabler >=2.2 ; extra == 'enabler' +Provides-Extra: test +Requires-Dist: pytest !=8.1.*,>=6 ; extra == 'test' +Provides-Extra: type +Requires-Dist: pytest-mypy ; extra == 'type' + +.. image:: https://img.shields.io/pypi/v/jaraco.collections.svg + :target: https://pypi.org/project/jaraco.collections + +.. image:: https://img.shields.io/pypi/pyversions/jaraco.collections.svg + +.. image:: https://github.com/jaraco/jaraco.collections/actions/workflows/main.yml/badge.svg + :target: https://github.com/jaraco/jaraco.collections/actions?query=workflow%3A%22tests%22 + :alt: tests + +.. image:: https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/charliermarsh/ruff/main/assets/badge/v2.json + :target: https://github.com/astral-sh/ruff + :alt: Ruff + +.. image:: https://readthedocs.org/projects/jaracocollections/badge/?version=latest + :target: https://jaracocollections.readthedocs.io/en/latest/?badge=latest + +.. image:: https://img.shields.io/badge/skeleton-2024-informational + :target: https://blog.jaraco.com/skeleton + +.. image:: https://tidelift.com/badges/package/pypi/jaraco.collections + :target: https://tidelift.com/subscription/pkg/pypi-jaraco.collections?utm_source=pypi-jaraco.collections&utm_medium=readme + +Models and classes to supplement the stdlib 'collections' module. + +See the docs, linked above, for descriptions and usage examples. + +Highlights include: + +- RangeMap: A mapping that accepts a range of values for keys. +- Projection: A subset over an existing mapping. +- KeyTransformingDict: Generalized mapping with keys transformed by a function. +- FoldedCaseKeyedDict: A dict whose string keys are case-insensitive. +- BijectiveMap: A map where keys map to values and values back to their keys. +- ItemsAsAttributes: A mapping mix-in exposing items as attributes. +- IdentityOverrideMap: A map whose keys map by default to themselves unless overridden. +- FrozenDict: A hashable, immutable map. +- Enumeration: An object whose keys are enumerated. +- Everything: A container that contains all things. +- Least, Greatest: Objects that are always less than or greater than any other. +- pop_all: Return all items from the mutable sequence and remove them from that sequence. +- DictStack: A stack of dicts, great for sharing scopes. +- WeightedLookup: A specialized RangeMap for selecting an item by weights. + +For Enterprise +============== + +Available as part of the Tidelift Subscription. + +This project and the maintainers of thousands of other packages are working with Tidelift to deliver one enterprise subscription that covers all of the open source you use. + +`Learn more `_. diff --git a/setuptools/_vendor/jaraco.collections-5.1.0.dist-info/RECORD b/setuptools/_vendor/jaraco.collections-5.1.0.dist-info/RECORD new file mode 100644 index 0000000000..48b957ec88 --- /dev/null +++ b/setuptools/_vendor/jaraco.collections-5.1.0.dist-info/RECORD @@ -0,0 +1,10 @@ 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b/setuptools/_vendor/jaraco.collections-5.1.0.dist-info/REQUESTED new file mode 100644 index 0000000000..e69de29bb2 diff --git a/setuptools/_vendor/jaraco.collections-5.1.0.dist-info/WHEEL b/setuptools/_vendor/jaraco.collections-5.1.0.dist-info/WHEEL new file mode 100644 index 0000000000..50e1e84e4a --- /dev/null +++ b/setuptools/_vendor/jaraco.collections-5.1.0.dist-info/WHEEL @@ -0,0 +1,5 @@ +Wheel-Version: 1.0 +Generator: setuptools (73.0.1) +Root-Is-Purelib: true +Tag: py3-none-any + diff --git a/setuptools/_vendor/jaraco.collections-5.1.0.dist-info/top_level.txt b/setuptools/_vendor/jaraco.collections-5.1.0.dist-info/top_level.txt new file mode 100644 index 0000000000..f6205a5f19 --- /dev/null +++ b/setuptools/_vendor/jaraco.collections-5.1.0.dist-info/top_level.txt @@ -0,0 +1 @@ +jaraco diff --git a/setuptools/_vendor/jaraco.context-5.3.0.dist-info/INSTALLER b/setuptools/_vendor/jaraco.context-5.3.0.dist-info/INSTALLER new file mode 100644 index 0000000000..a1b589e38a --- /dev/null +++ b/setuptools/_vendor/jaraco.context-5.3.0.dist-info/INSTALLER @@ -0,0 +1 @@ +pip diff --git a/setuptools/_vendor/jaraco.context-5.3.0.dist-info/LICENSE b/setuptools/_vendor/jaraco.context-5.3.0.dist-info/LICENSE new file mode 100644 index 0000000000..1bb5a44356 --- /dev/null +++ b/setuptools/_vendor/jaraco.context-5.3.0.dist-info/LICENSE @@ -0,0 +1,17 @@ +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to +deal in the Software without restriction, including without limitation the +rights to use, copy, modify, merge, publish, distribute, sublicense, and/or +sell copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS +IN THE SOFTWARE. diff --git a/setuptools/_vendor/jaraco.context-5.3.0.dist-info/METADATA b/setuptools/_vendor/jaraco.context-5.3.0.dist-info/METADATA new file mode 100644 index 0000000000..a36f7c5e82 --- /dev/null +++ b/setuptools/_vendor/jaraco.context-5.3.0.dist-info/METADATA @@ -0,0 +1,75 @@ +Metadata-Version: 2.1 +Name: jaraco.context +Version: 5.3.0 +Summary: Useful decorators and context managers +Home-page: https://github.com/jaraco/jaraco.context +Author: Jason R. Coombs +Author-email: jaraco@jaraco.com +Classifier: Development Status :: 5 - Production/Stable +Classifier: Intended Audience :: Developers +Classifier: License :: OSI Approved :: MIT License +Classifier: Programming Language :: Python :: 3 +Classifier: Programming Language :: Python :: 3 :: Only +Requires-Python: >=3.8 +License-File: LICENSE +Requires-Dist: backports.tarfile ; python_version < "3.12" +Provides-Extra: docs +Requires-Dist: sphinx >=3.5 ; extra == 'docs' +Requires-Dist: jaraco.packaging >=9.3 ; extra == 'docs' +Requires-Dist: rst.linker >=1.9 ; extra == 'docs' +Requires-Dist: furo ; extra == 'docs' +Requires-Dist: sphinx-lint ; extra == 'docs' +Requires-Dist: jaraco.tidelift >=1.4 ; extra == 'docs' +Provides-Extra: testing +Requires-Dist: pytest !=8.1.1,>=6 ; extra == 'testing' +Requires-Dist: pytest-checkdocs >=2.4 ; extra == 'testing' +Requires-Dist: pytest-cov ; extra == 'testing' +Requires-Dist: pytest-mypy ; extra == 'testing' +Requires-Dist: pytest-enabler >=2.2 ; extra == 'testing' +Requires-Dist: pytest-ruff >=0.2.1 ; extra == 'testing' +Requires-Dist: portend ; extra == 'testing' + +.. image:: https://img.shields.io/pypi/v/jaraco.context.svg + :target: https://pypi.org/project/jaraco.context + +.. image:: https://img.shields.io/pypi/pyversions/jaraco.context.svg + +.. image:: https://github.com/jaraco/jaraco.context/actions/workflows/main.yml/badge.svg + :target: https://github.com/jaraco/jaraco.context/actions?query=workflow%3A%22tests%22 + :alt: tests + +.. image:: https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/charliermarsh/ruff/main/assets/badge/v2.json + :target: https://github.com/astral-sh/ruff + :alt: Ruff + +.. image:: https://readthedocs.org/projects/jaracocontext/badge/?version=latest + :target: https://jaracocontext.readthedocs.io/en/latest/?badge=latest + +.. image:: https://img.shields.io/badge/skeleton-2024-informational + :target: https://blog.jaraco.com/skeleton + +.. image:: https://tidelift.com/badges/package/pypi/jaraco.context + :target: https://tidelift.com/subscription/pkg/pypi-jaraco.context?utm_source=pypi-jaraco.context&utm_medium=readme + + +Highlights +========== + +See the docs linked from the badge above for the full details, but here are some features that may be of interest. + +- ``ExceptionTrap`` provides a general-purpose wrapper for trapping exceptions and then acting on the outcome. Includes ``passes`` and ``raises`` decorators to replace the result of a wrapped function by a boolean indicating the outcome of the exception trap. See `this keyring commit `_ for an example of it in production. +- ``suppress`` simply enables ``contextlib.suppress`` as a decorator. +- ``on_interrupt`` is a decorator used by CLI entry points to affect the handling of a ``KeyboardInterrupt``. Inspired by `Lucretiel/autocommand#18 `_. +- ``pushd`` is similar to pytest's ``monkeypatch.chdir`` or path's `default context `_, changes the current working directory for the duration of the context. +- ``tarball`` will download a tarball, extract it, change directory, yield, then clean up after. Convenient when working with web assets. +- ``null`` is there for those times when one code branch needs a context and the other doesn't; this null context provides symmetry across those branches. + + +For Enterprise +============== + +Available as part of the Tidelift Subscription. + +This project and the maintainers of thousands of other packages are working with Tidelift to deliver one enterprise subscription that covers all of the open source you use. + +`Learn more `_. diff --git a/setuptools/_vendor/jaraco.context-5.3.0.dist-info/RECORD b/setuptools/_vendor/jaraco.context-5.3.0.dist-info/RECORD new file mode 100644 index 0000000000..09d191f214 --- /dev/null +++ b/setuptools/_vendor/jaraco.context-5.3.0.dist-info/RECORD @@ -0,0 +1,8 @@ +jaraco.context-5.3.0.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4 +jaraco.context-5.3.0.dist-info/LICENSE,sha256=htoPAa6uRjSKPD1GUZXcHOzN55956HdppkuNoEsqR0E,1023 +jaraco.context-5.3.0.dist-info/METADATA,sha256=xDtguJej0tN9iEXCUvxEJh2a7xceIRVBEakBLSr__tY,4020 +jaraco.context-5.3.0.dist-info/RECORD,, +jaraco.context-5.3.0.dist-info/WHEEL,sha256=GJ7t_kWBFywbagK5eo9IoUwLW6oyOeTKmQ-9iHFVNxQ,92 +jaraco.context-5.3.0.dist-info/top_level.txt,sha256=0JnN3LfXH4LIRfXL-QFOGCJzQWZO3ELx4R1d_louoQM,7 +jaraco/__pycache__/context.cpython-312.pyc,, +jaraco/context.py,sha256=REoLIxDkO5MfEYowt_WoupNCRoxBS5v7YX2PbW8lIcs,9552 diff --git a/setuptools/_vendor/jaraco.context-5.3.0.dist-info/WHEEL b/setuptools/_vendor/jaraco.context-5.3.0.dist-info/WHEEL new file mode 100644 index 0000000000..bab98d6758 --- /dev/null +++ b/setuptools/_vendor/jaraco.context-5.3.0.dist-info/WHEEL @@ -0,0 +1,5 @@ +Wheel-Version: 1.0 +Generator: bdist_wheel (0.43.0) +Root-Is-Purelib: true +Tag: py3-none-any + diff --git a/setuptools/_vendor/jaraco.context-5.3.0.dist-info/top_level.txt b/setuptools/_vendor/jaraco.context-5.3.0.dist-info/top_level.txt new file mode 100644 index 0000000000..f6205a5f19 --- /dev/null +++ b/setuptools/_vendor/jaraco.context-5.3.0.dist-info/top_level.txt @@ -0,0 +1 @@ +jaraco diff --git a/setuptools/_vendor/jaraco.functools-4.0.1.dist-info/INSTALLER b/setuptools/_vendor/jaraco.functools-4.0.1.dist-info/INSTALLER new file mode 100644 index 0000000000..a1b589e38a --- /dev/null +++ b/setuptools/_vendor/jaraco.functools-4.0.1.dist-info/INSTALLER @@ -0,0 +1 @@ +pip diff --git a/setuptools/_vendor/jaraco.functools-4.0.1.dist-info/LICENSE b/setuptools/_vendor/jaraco.functools-4.0.1.dist-info/LICENSE new file mode 100644 index 0000000000..1bb5a44356 --- /dev/null +++ b/setuptools/_vendor/jaraco.functools-4.0.1.dist-info/LICENSE @@ -0,0 +1,17 @@ +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to +deal in the Software without restriction, including without limitation the +rights to use, copy, modify, merge, publish, distribute, sublicense, and/or +sell copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS +IN THE SOFTWARE. diff --git a/setuptools/_vendor/jaraco.functools-4.0.1.dist-info/METADATA b/setuptools/_vendor/jaraco.functools-4.0.1.dist-info/METADATA new file mode 100644 index 0000000000..c865140ab2 --- /dev/null +++ b/setuptools/_vendor/jaraco.functools-4.0.1.dist-info/METADATA @@ -0,0 +1,64 @@ +Metadata-Version: 2.1 +Name: jaraco.functools +Version: 4.0.1 +Summary: Functools like those found in stdlib +Author-email: "Jason R. Coombs" +Project-URL: Homepage, https://github.com/jaraco/jaraco.functools +Classifier: Development Status :: 5 - Production/Stable +Classifier: Intended Audience :: Developers +Classifier: License :: OSI Approved :: MIT License +Classifier: Programming Language :: Python :: 3 +Classifier: Programming Language :: Python :: 3 :: Only +Requires-Python: >=3.8 +Description-Content-Type: text/x-rst +License-File: LICENSE +Requires-Dist: more-itertools +Provides-Extra: docs +Requires-Dist: sphinx >=3.5 ; extra == 'docs' +Requires-Dist: sphinx <7.2.5 ; extra == 'docs' +Requires-Dist: jaraco.packaging >=9.3 ; extra == 'docs' +Requires-Dist: rst.linker >=1.9 ; extra == 'docs' +Requires-Dist: furo ; extra == 'docs' +Requires-Dist: sphinx-lint ; extra == 'docs' +Requires-Dist: jaraco.tidelift >=1.4 ; extra == 'docs' +Provides-Extra: testing +Requires-Dist: pytest >=6 ; extra == 'testing' +Requires-Dist: pytest-checkdocs >=2.4 ; extra == 'testing' +Requires-Dist: pytest-cov ; extra == 'testing' +Requires-Dist: pytest-enabler >=2.2 ; extra == 'testing' +Requires-Dist: pytest-ruff >=0.2.1 ; extra == 'testing' +Requires-Dist: jaraco.classes ; extra == 'testing' +Requires-Dist: pytest-mypy ; (platform_python_implementation != "PyPy") and extra == 'testing' + +.. image:: https://img.shields.io/pypi/v/jaraco.functools.svg + :target: https://pypi.org/project/jaraco.functools + +.. image:: https://img.shields.io/pypi/pyversions/jaraco.functools.svg + +.. image:: https://github.com/jaraco/jaraco.functools/actions/workflows/main.yml/badge.svg + :target: https://github.com/jaraco/jaraco.functools/actions?query=workflow%3A%22tests%22 + :alt: tests + +.. image:: https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/charliermarsh/ruff/main/assets/badge/v2.json + :target: https://github.com/astral-sh/ruff + :alt: Ruff + +.. image:: https://readthedocs.org/projects/jaracofunctools/badge/?version=latest + :target: https://jaracofunctools.readthedocs.io/en/latest/?badge=latest + +.. image:: https://img.shields.io/badge/skeleton-2024-informational + :target: https://blog.jaraco.com/skeleton + +.. image:: https://tidelift.com/badges/package/pypi/jaraco.functools + :target: https://tidelift.com/subscription/pkg/pypi-jaraco.functools?utm_source=pypi-jaraco.functools&utm_medium=readme + +Additional functools in the spirit of stdlib's functools. + +For Enterprise +============== + +Available as part of the Tidelift Subscription. + +This project and the maintainers of thousands of other packages are working with Tidelift to deliver one enterprise subscription that covers all of the open source you use. + +`Learn more `_. diff --git a/setuptools/_vendor/jaraco.functools-4.0.1.dist-info/RECORD b/setuptools/_vendor/jaraco.functools-4.0.1.dist-info/RECORD new file mode 100644 index 0000000000..ef3bc21e92 --- /dev/null +++ b/setuptools/_vendor/jaraco.functools-4.0.1.dist-info/RECORD @@ -0,0 +1,10 @@ +jaraco.functools-4.0.1.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4 +jaraco.functools-4.0.1.dist-info/LICENSE,sha256=htoPAa6uRjSKPD1GUZXcHOzN55956HdppkuNoEsqR0E,1023 +jaraco.functools-4.0.1.dist-info/METADATA,sha256=i4aUaQDX-jjdEQK5wevhegyx8JyLfin2HyvaSk3FHso,2891 +jaraco.functools-4.0.1.dist-info/RECORD,, +jaraco.functools-4.0.1.dist-info/WHEEL,sha256=GJ7t_kWBFywbagK5eo9IoUwLW6oyOeTKmQ-9iHFVNxQ,92 +jaraco.functools-4.0.1.dist-info/top_level.txt,sha256=0JnN3LfXH4LIRfXL-QFOGCJzQWZO3ELx4R1d_louoQM,7 +jaraco/functools/__init__.py,sha256=hEAJaS2uSZRuF_JY4CxCHIYh79ZpxaPp9OiHyr9EJ1w,16642 +jaraco/functools/__init__.pyi,sha256=gk3dsgHzo5F_U74HzAvpNivFAPCkPJ1b2-yCd62dfnw,3878 +jaraco/functools/__pycache__/__init__.cpython-312.pyc,, +jaraco/functools/py.typed,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0 diff --git a/setuptools/_vendor/jaraco.functools-4.0.1.dist-info/WHEEL b/setuptools/_vendor/jaraco.functools-4.0.1.dist-info/WHEEL new file mode 100644 index 0000000000..bab98d6758 --- /dev/null +++ b/setuptools/_vendor/jaraco.functools-4.0.1.dist-info/WHEEL @@ -0,0 +1,5 @@ +Wheel-Version: 1.0 +Generator: bdist_wheel (0.43.0) +Root-Is-Purelib: true +Tag: py3-none-any + diff --git a/setuptools/_vendor/jaraco.functools-4.0.1.dist-info/top_level.txt b/setuptools/_vendor/jaraco.functools-4.0.1.dist-info/top_level.txt new file mode 100644 index 0000000000..f6205a5f19 --- /dev/null +++ b/setuptools/_vendor/jaraco.functools-4.0.1.dist-info/top_level.txt @@ -0,0 +1 @@ +jaraco diff --git a/setuptools/_vendor/jaraco.text-3.12.1.dist-info/INSTALLER b/setuptools/_vendor/jaraco.text-3.12.1.dist-info/INSTALLER new file mode 100644 index 0000000000..a1b589e38a --- /dev/null +++ b/setuptools/_vendor/jaraco.text-3.12.1.dist-info/INSTALLER @@ -0,0 +1 @@ +pip diff --git a/setuptools/_vendor/jaraco.text-3.12.1.dist-info/LICENSE b/setuptools/_vendor/jaraco.text-3.12.1.dist-info/LICENSE new file mode 100644 index 0000000000..1bb5a44356 --- /dev/null +++ b/setuptools/_vendor/jaraco.text-3.12.1.dist-info/LICENSE @@ -0,0 +1,17 @@ +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to +deal in the Software without restriction, including without limitation the +rights to use, copy, modify, merge, publish, distribute, sublicense, and/or +sell copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS +IN THE SOFTWARE. diff --git a/setuptools/_vendor/jaraco.text-3.12.1.dist-info/METADATA b/setuptools/_vendor/jaraco.text-3.12.1.dist-info/METADATA new file mode 100644 index 0000000000..0258a380f4 --- /dev/null +++ b/setuptools/_vendor/jaraco.text-3.12.1.dist-info/METADATA @@ -0,0 +1,95 @@ +Metadata-Version: 2.1 +Name: jaraco.text +Version: 3.12.1 +Summary: Module for text manipulation +Author-email: "Jason R. Coombs" +Project-URL: Homepage, https://github.com/jaraco/jaraco.text +Classifier: Development Status :: 5 - Production/Stable +Classifier: Intended Audience :: Developers +Classifier: License :: OSI Approved :: MIT License +Classifier: Programming Language :: Python :: 3 +Classifier: Programming Language :: Python :: 3 :: Only +Requires-Python: >=3.8 +Description-Content-Type: text/x-rst +License-File: LICENSE +Requires-Dist: jaraco.functools +Requires-Dist: jaraco.context >=4.1 +Requires-Dist: autocommand +Requires-Dist: inflect +Requires-Dist: more-itertools +Requires-Dist: importlib-resources ; python_version < "3.9" +Provides-Extra: doc +Requires-Dist: sphinx >=3.5 ; extra == 'doc' +Requires-Dist: jaraco.packaging >=9.3 ; extra == 'doc' +Requires-Dist: rst.linker >=1.9 ; extra == 'doc' +Requires-Dist: furo ; extra == 'doc' +Requires-Dist: sphinx-lint ; extra == 'doc' +Requires-Dist: jaraco.tidelift >=1.4 ; extra == 'doc' +Provides-Extra: test +Requires-Dist: pytest !=8.1.*,>=6 ; extra == 'test' +Requires-Dist: pytest-checkdocs >=2.4 ; extra == 'test' +Requires-Dist: pytest-cov ; extra == 'test' +Requires-Dist: pytest-mypy ; extra == 'test' +Requires-Dist: pytest-enabler >=2.2 ; extra == 'test' +Requires-Dist: pytest-ruff >=0.2.1 ; extra == 'test' +Requires-Dist: pathlib2 ; (python_version < "3.10") and extra == 'test' + +.. image:: https://img.shields.io/pypi/v/jaraco.text.svg + :target: https://pypi.org/project/jaraco.text + +.. image:: https://img.shields.io/pypi/pyversions/jaraco.text.svg + +.. image:: https://github.com/jaraco/jaraco.text/actions/workflows/main.yml/badge.svg + :target: https://github.com/jaraco/jaraco.text/actions?query=workflow%3A%22tests%22 + :alt: tests + +.. image:: https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/charliermarsh/ruff/main/assets/badge/v2.json + :target: https://github.com/astral-sh/ruff + :alt: Ruff + +.. image:: https://readthedocs.org/projects/jaracotext/badge/?version=latest + :target: https://jaracotext.readthedocs.io/en/latest/?badge=latest + +.. image:: https://img.shields.io/badge/skeleton-2024-informational + :target: https://blog.jaraco.com/skeleton + +.. image:: https://tidelift.com/badges/package/pypi/jaraco.text + :target: https://tidelift.com/subscription/pkg/pypi-jaraco.text?utm_source=pypi-jaraco.text&utm_medium=readme + + +This package provides handy routines for dealing with text, such as +wrapping, substitution, trimming, stripping, prefix and suffix removal, +line continuation, indentation, comment processing, identifier processing, +values parsing, case insensitive comparison, and more. See the docs +(linked in the badge above) for the detailed documentation and examples. + +Layouts +======= + +One of the features of this package is the layouts module, which +provides a simple example of translating keystrokes from one keyboard +layout to another:: + + echo qwerty | python -m jaraco.text.to-dvorak + ',.pyf + echo "',.pyf" | python -m jaraco.text.to-qwerty + qwerty + +Newline Reporting +================= + +Need to know what newlines appear in a file? + +:: + + $ python -m jaraco.text.show-newlines README.rst + newline is '\n' + +For Enterprise +============== + +Available as part of the Tidelift Subscription. + +This project and the maintainers of thousands of other packages are working with Tidelift to deliver one enterprise subscription that covers all of the open source you use. + +`Learn more `_. diff --git a/setuptools/_vendor/jaraco.text-3.12.1.dist-info/RECORD b/setuptools/_vendor/jaraco.text-3.12.1.dist-info/RECORD new file mode 100644 index 0000000000..19e2d8402a --- /dev/null +++ b/setuptools/_vendor/jaraco.text-3.12.1.dist-info/RECORD @@ -0,0 +1,20 @@ +jaraco.text-3.12.1.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4 +jaraco.text-3.12.1.dist-info/LICENSE,sha256=htoPAa6uRjSKPD1GUZXcHOzN55956HdppkuNoEsqR0E,1023 +jaraco.text-3.12.1.dist-info/METADATA,sha256=AzWdm6ViMfDOPoQMfLWn2zgBQSGJScyqeN29TcuWXVI,3658 +jaraco.text-3.12.1.dist-info/RECORD,, +jaraco.text-3.12.1.dist-info/REQUESTED,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0 +jaraco.text-3.12.1.dist-info/WHEEL,sha256=GJ7t_kWBFywbagK5eo9IoUwLW6oyOeTKmQ-9iHFVNxQ,92 +jaraco.text-3.12.1.dist-info/top_level.txt,sha256=0JnN3LfXH4LIRfXL-QFOGCJzQWZO3ELx4R1d_louoQM,7 +jaraco/text/Lorem ipsum.txt,sha256=N_7c_79zxOufBY9HZ3yzMgOkNv-TkOTTio4BydrSjgs,1335 +jaraco/text/__init__.py,sha256=Y2YUqXR_orUoDaY4SkPRe6ZZhb5HUHB_Ah9RCNsVyho,16250 +jaraco/text/__pycache__/__init__.cpython-312.pyc,, +jaraco/text/__pycache__/layouts.cpython-312.pyc,, +jaraco/text/__pycache__/show-newlines.cpython-312.pyc,, +jaraco/text/__pycache__/strip-prefix.cpython-312.pyc,, +jaraco/text/__pycache__/to-dvorak.cpython-312.pyc,, +jaraco/text/__pycache__/to-qwerty.cpython-312.pyc,, +jaraco/text/layouts.py,sha256=HTC8aSTLZ7uXipyOXapRMC158juecjK6RVwitfmZ9_w,643 +jaraco/text/show-newlines.py,sha256=WGQa65e8lyhb92LUOLqVn6KaCtoeVgVws6WtSRmLk6w,904 +jaraco/text/strip-prefix.py,sha256=NfVXV8JVNo6nqcuYASfMV7_y4Eo8zMQqlCOGvAnRIVw,412 +jaraco/text/to-dvorak.py,sha256=1SNcbSsvISpXXg-LnybIHHY-RUFOQr36zcHkY1pWFqw,119 +jaraco/text/to-qwerty.py,sha256=s4UMQUnPwFn_dB5uZC27BurHOQcYondBfzIpVL5pEzw,119 diff --git a/setuptools/_vendor/jaraco.text-3.12.1.dist-info/REQUESTED b/setuptools/_vendor/jaraco.text-3.12.1.dist-info/REQUESTED new file mode 100644 index 0000000000..e69de29bb2 diff --git a/setuptools/_vendor/jaraco.text-3.12.1.dist-info/WHEEL b/setuptools/_vendor/jaraco.text-3.12.1.dist-info/WHEEL new file mode 100644 index 0000000000..bab98d6758 --- /dev/null +++ b/setuptools/_vendor/jaraco.text-3.12.1.dist-info/WHEEL @@ -0,0 +1,5 @@ +Wheel-Version: 1.0 +Generator: bdist_wheel (0.43.0) +Root-Is-Purelib: true +Tag: py3-none-any + diff --git a/setuptools/_vendor/jaraco.text-3.12.1.dist-info/top_level.txt b/setuptools/_vendor/jaraco.text-3.12.1.dist-info/top_level.txt new file mode 100644 index 0000000000..f6205a5f19 --- /dev/null +++ b/setuptools/_vendor/jaraco.text-3.12.1.dist-info/top_level.txt @@ -0,0 +1 @@ +jaraco diff --git a/setuptools/_vendor/jaraco/collections/__init__.py b/setuptools/_vendor/jaraco/collections/__init__.py new file mode 100644 index 0000000000..0d501cf9e9 --- /dev/null +++ b/setuptools/_vendor/jaraco/collections/__init__.py @@ -0,0 +1,1091 @@ +from __future__ import annotations + +import collections.abc +import copy +import functools +import itertools +import operator +import random +import re +from collections.abc import Container, Iterable, Mapping +from typing import TYPE_CHECKING, Any, Callable, Dict, TypeVar, Union, overload + +import jaraco.text + +if TYPE_CHECKING: + from _operator import _SupportsComparison + + from _typeshed import SupportsKeysAndGetItem + from typing_extensions import Self + + _RangeMapKT = TypeVar('_RangeMapKT', bound=_SupportsComparison) +else: + # _SupportsComparison doesn't exist at runtime, + # but _RangeMapKT is used in RangeMap's superclass' type parameters + _RangeMapKT = TypeVar('_RangeMapKT') + +_T = TypeVar('_T') +_VT = TypeVar('_VT') + +_Matchable = Union[Callable, Container, Iterable, re.Pattern] + + +def _dispatch(obj: _Matchable) -> Callable: + # can't rely on singledispatch for Union[Container, Iterable] + # due to ambiguity + # (https://peps.python.org/pep-0443/#abstract-base-classes). + if isinstance(obj, re.Pattern): + return obj.fullmatch + # mypy issue: https://github.com/python/mypy/issues/11071 + if not isinstance(obj, Callable): # type: ignore[arg-type] + if not isinstance(obj, Container): + obj = set(obj) # type: ignore[arg-type] + obj = obj.__contains__ + return obj # type: ignore[return-value] + + +class Projection(collections.abc.Mapping): + """ + Project a set of keys over a mapping + + >>> sample = {'a': 1, 'b': 2, 'c': 3} + >>> prj = Projection(['a', 'c', 'd'], sample) + >>> dict(prj) + {'a': 1, 'c': 3} + + Projection also accepts an iterable or callable or pattern. + + >>> iter_prj = Projection(iter('acd'), sample) + >>> call_prj = Projection(lambda k: ord(k) in (97, 99, 100), sample) + >>> pat_prj = Projection(re.compile(r'[acd]'), sample) + >>> prj == iter_prj == call_prj == pat_prj + True + + Keys should only appear if they were specified and exist in the space. + Order is retained. + + >>> list(prj) + ['a', 'c'] + + Attempting to access a key not in the projection + results in a KeyError. + + >>> prj['b'] + Traceback (most recent call last): + ... + KeyError: 'b' + + Use the projection to update another dict. + + >>> target = {'a': 2, 'b': 2} + >>> target.update(prj) + >>> target + {'a': 1, 'b': 2, 'c': 3} + + Projection keeps a reference to the original dict, so + modifying the original dict may modify the Projection. + + >>> del sample['a'] + >>> dict(prj) + {'c': 3} + """ + + def __init__(self, keys: _Matchable, space: Mapping): + self._match = _dispatch(keys) + self._space = space + + def __getitem__(self, key): + if not self._match(key): + raise KeyError(key) + return self._space[key] + + def _keys_resolved(self): + return filter(self._match, self._space) + + def __iter__(self): + return self._keys_resolved() + + def __len__(self): + return len(tuple(self._keys_resolved())) + + +class Mask(Projection): + """ + The inverse of a :class:`Projection`, masking out keys. + + >>> sample = {'a': 1, 'b': 2, 'c': 3} + >>> msk = Mask(['a', 'c', 'd'], sample) + >>> dict(msk) + {'b': 2} + """ + + def __init__(self, *args, **kwargs): + super().__init__(*args, **kwargs) + # self._match = compose(operator.not_, self._match) + self._match = lambda key, orig=self._match: not orig(key) + + +def dict_map(function, dictionary): + """ + Return a new dict with function applied to values of dictionary. + + >>> dict_map(lambda x: x+1, dict(a=1, b=2)) + {'a': 2, 'b': 3} + """ + return dict((key, function(value)) for key, value in dictionary.items()) + + +class RangeMap(Dict[_RangeMapKT, _VT]): + """ + A dictionary-like object that uses the keys as bounds for a range. + Inclusion of the value for that range is determined by the + key_match_comparator, which defaults to less-than-or-equal. + A value is returned for a key if it is the first key that matches in + the sorted list of keys. + + One may supply keyword parameters to be passed to the sort function used + to sort keys (i.e. key, reverse) as sort_params. + + Create a map that maps 1-3 -> 'a', 4-6 -> 'b' + + >>> r = RangeMap({3: 'a', 6: 'b'}) # boy, that was easy + >>> r[1], r[2], r[3], r[4], r[5], r[6] + ('a', 'a', 'a', 'b', 'b', 'b') + + Even float values should work so long as the comparison operator + supports it. + + >>> r[4.5] + 'b' + + Notice that the way rangemap is defined, it must be open-ended + on one side. + + >>> r[0] + 'a' + >>> r[-1] + 'a' + + One can close the open-end of the RangeMap by using undefined_value + + >>> r = RangeMap({0: RangeMap.undefined_value, 3: 'a', 6: 'b'}) + >>> r[0] + Traceback (most recent call last): + ... + KeyError: 0 + + One can get the first or last elements in the range by using RangeMap.Item + + >>> last_item = RangeMap.Item(-1) + >>> r[last_item] + 'b' + + .last_item is a shortcut for Item(-1) + + >>> r[RangeMap.last_item] + 'b' + + Sometimes it's useful to find the bounds for a RangeMap + + >>> r.bounds() + (0, 6) + + RangeMap supports .get(key, default) + + >>> r.get(0, 'not found') + 'not found' + + >>> r.get(7, 'not found') + 'not found' + + One often wishes to define the ranges by their left-most values, + which requires use of sort params and a key_match_comparator. + + >>> r = RangeMap({1: 'a', 4: 'b'}, + ... sort_params=dict(reverse=True), + ... key_match_comparator=operator.ge) + >>> r[1], r[2], r[3], r[4], r[5], r[6] + ('a', 'a', 'a', 'b', 'b', 'b') + + That wasn't nearly as easy as before, so an alternate constructor + is provided: + + >>> r = RangeMap.left({1: 'a', 4: 'b', 7: RangeMap.undefined_value}) + >>> r[1], r[2], r[3], r[4], r[5], r[6] + ('a', 'a', 'a', 'b', 'b', 'b') + + """ + + def __init__( + self, + source: ( + SupportsKeysAndGetItem[_RangeMapKT, _VT] | Iterable[tuple[_RangeMapKT, _VT]] + ), + sort_params: Mapping[str, Any] = {}, + key_match_comparator: Callable[[_RangeMapKT, _RangeMapKT], bool] = operator.le, + ): + dict.__init__(self, source) + self.sort_params = sort_params + self.match = key_match_comparator + + @classmethod + def left( + cls, + source: ( + SupportsKeysAndGetItem[_RangeMapKT, _VT] | Iterable[tuple[_RangeMapKT, _VT]] + ), + ) -> Self: + return cls( + source, sort_params=dict(reverse=True), key_match_comparator=operator.ge + ) + + def __getitem__(self, item: _RangeMapKT) -> _VT: + sorted_keys = sorted(self.keys(), **self.sort_params) + if isinstance(item, RangeMap.Item): + result = self.__getitem__(sorted_keys[item]) + else: + key = self._find_first_match_(sorted_keys, item) + result = dict.__getitem__(self, key) + if result is RangeMap.undefined_value: + raise KeyError(key) + return result + + @overload # type: ignore[override] # Signature simplified over dict and Mapping + def get(self, key: _RangeMapKT, default: _T) -> _VT | _T: ... + @overload + def get(self, key: _RangeMapKT, default: None = None) -> _VT | None: ... + def get(self, key: _RangeMapKT, default: _T | None = None) -> _VT | _T | None: + """ + Return the value for key if key is in the dictionary, else default. + If default is not given, it defaults to None, so that this method + never raises a KeyError. + """ + try: + return self[key] + except KeyError: + return default + + def _find_first_match_( + self, keys: Iterable[_RangeMapKT], item: _RangeMapKT + ) -> _RangeMapKT: + is_match = functools.partial(self.match, item) + matches = filter(is_match, keys) + try: + return next(matches) + except StopIteration: + raise KeyError(item) from None + + def bounds(self) -> tuple[_RangeMapKT, _RangeMapKT]: + sorted_keys = sorted(self.keys(), **self.sort_params) + return (sorted_keys[RangeMap.first_item], sorted_keys[RangeMap.last_item]) + + # some special values for the RangeMap + undefined_value = type('RangeValueUndefined', (), {})() + + class Item(int): + """RangeMap Item""" + + first_item = Item(0) + last_item = Item(-1) + + +def __identity(x): + return x + + +def sorted_items(d, key=__identity, reverse=False): + """ + Return the items of the dictionary sorted by the keys. + + >>> sample = dict(foo=20, bar=42, baz=10) + >>> tuple(sorted_items(sample)) + (('bar', 42), ('baz', 10), ('foo', 20)) + + >>> reverse_string = lambda s: ''.join(reversed(s)) + >>> tuple(sorted_items(sample, key=reverse_string)) + (('foo', 20), ('bar', 42), ('baz', 10)) + + >>> tuple(sorted_items(sample, reverse=True)) + (('foo', 20), ('baz', 10), ('bar', 42)) + """ + + # wrap the key func so it operates on the first element of each item + def pairkey_key(item): + return key(item[0]) + + return sorted(d.items(), key=pairkey_key, reverse=reverse) + + +class KeyTransformingDict(dict): + """ + A dict subclass that transforms the keys before they're used. + Subclasses may override the default transform_key to customize behavior. + """ + + @staticmethod + def transform_key(key): # pragma: nocover + return key + + def __init__(self, *args, **kargs): + super().__init__() + # build a dictionary using the default constructs + d = dict(*args, **kargs) + # build this dictionary using transformed keys. + for item in d.items(): + self.__setitem__(*item) + + def __setitem__(self, key, val): + key = self.transform_key(key) + super().__setitem__(key, val) + + def __getitem__(self, key): + key = self.transform_key(key) + return super().__getitem__(key) + + def __contains__(self, key): + key = self.transform_key(key) + return super().__contains__(key) + + def __delitem__(self, key): + key = self.transform_key(key) + return super().__delitem__(key) + + def get(self, key, *args, **kwargs): + key = self.transform_key(key) + return super().get(key, *args, **kwargs) + + def setdefault(self, key, *args, **kwargs): + key = self.transform_key(key) + return super().setdefault(key, *args, **kwargs) + + def pop(self, key, *args, **kwargs): + key = self.transform_key(key) + return super().pop(key, *args, **kwargs) + + def matching_key_for(self, key): + """ + Given a key, return the actual key stored in self that matches. + Raise KeyError if the key isn't found. + """ + try: + return next(e_key for e_key in self.keys() if e_key == key) + except StopIteration as err: + raise KeyError(key) from err + + +class FoldedCaseKeyedDict(KeyTransformingDict): + """ + A case-insensitive dictionary (keys are compared as insensitive + if they are strings). + + >>> d = FoldedCaseKeyedDict() + >>> d['heLlo'] = 'world' + >>> list(d.keys()) == ['heLlo'] + True + >>> list(d.values()) == ['world'] + True + >>> d['hello'] == 'world' + True + >>> 'hello' in d + True + >>> 'HELLO' in d + True + >>> print(repr(FoldedCaseKeyedDict({'heLlo': 'world'}))) + {'heLlo': 'world'} + >>> d = FoldedCaseKeyedDict({'heLlo': 'world'}) + >>> print(d['hello']) + world + >>> print(d['Hello']) + world + >>> list(d.keys()) + ['heLlo'] + >>> d = FoldedCaseKeyedDict({'heLlo': 'world', 'Hello': 'world'}) + >>> list(d.values()) + ['world'] + >>> key, = d.keys() + >>> key in ['heLlo', 'Hello'] + True + >>> del d['HELLO'] + >>> d + {} + + get should work + + >>> d['Sumthin'] = 'else' + >>> d.get('SUMTHIN') + 'else' + >>> d.get('OTHER', 'thing') + 'thing' + >>> del d['sumthin'] + + setdefault should also work + + >>> d['This'] = 'that' + >>> print(d.setdefault('this', 'other')) + that + >>> len(d) + 1 + >>> print(d['this']) + that + >>> print(d.setdefault('That', 'other')) + other + >>> print(d['THAT']) + other + + Make it pop! + + >>> print(d.pop('THAT')) + other + + To retrieve the key in its originally-supplied form, use matching_key_for + + >>> print(d.matching_key_for('this')) + This + + >>> d.matching_key_for('missing') + Traceback (most recent call last): + ... + KeyError: 'missing' + """ + + @staticmethod + def transform_key(key): + return jaraco.text.FoldedCase(key) + + +class DictAdapter: + """ + Provide a getitem interface for attributes of an object. + + Let's say you want to get at the string.lowercase property in a formatted + string. It's easy with DictAdapter. + + >>> import string + >>> print("lowercase is %(ascii_lowercase)s" % DictAdapter(string)) + lowercase is abcdefghijklmnopqrstuvwxyz + """ + + def __init__(self, wrapped_ob): + self.object = wrapped_ob + + def __getitem__(self, name): + return getattr(self.object, name) + + +class ItemsAsAttributes: + """ + Mix-in class to enable a mapping object to provide items as + attributes. + + >>> C = type('C', (dict, ItemsAsAttributes), dict()) + >>> i = C() + >>> i['foo'] = 'bar' + >>> i.foo + 'bar' + + Natural attribute access takes precedence + + >>> i.foo = 'henry' + >>> i.foo + 'henry' + + But as you might expect, the mapping functionality is preserved. + + >>> i['foo'] + 'bar' + + A normal attribute error should be raised if an attribute is + requested that doesn't exist. + + >>> i.missing + Traceback (most recent call last): + ... + AttributeError: 'C' object has no attribute 'missing' + + It also works on dicts that customize __getitem__ + + >>> missing_func = lambda self, key: 'missing item' + >>> C = type( + ... 'C', + ... (dict, ItemsAsAttributes), + ... dict(__missing__ = missing_func), + ... ) + >>> i = C() + >>> i.missing + 'missing item' + >>> i.foo + 'missing item' + """ + + def __getattr__(self, key): + try: + return getattr(super(), key) + except AttributeError as e: + # attempt to get the value from the mapping (return self[key]) + # but be careful not to lose the original exception context. + noval = object() + + def _safe_getitem(cont, key, missing_result): + try: + return cont[key] + except KeyError: + return missing_result + + result = _safe_getitem(self, key, noval) + if result is not noval: + return result + # raise the original exception, but use the original class + # name, not 'super'. + (message,) = e.args + message = message.replace('super', self.__class__.__name__, 1) + e.args = (message,) + raise + + +def invert_map(map): + """ + Given a dictionary, return another dictionary with keys and values + switched. If any of the values resolve to the same key, raises + a ValueError. + + >>> numbers = dict(a=1, b=2, c=3) + >>> letters = invert_map(numbers) + >>> letters[1] + 'a' + >>> numbers['d'] = 3 + >>> invert_map(numbers) + Traceback (most recent call last): + ... + ValueError: Key conflict in inverted mapping + """ + res = dict((v, k) for k, v in map.items()) + if not len(res) == len(map): + raise ValueError('Key conflict in inverted mapping') + return res + + +class IdentityOverrideMap(dict): + """ + A dictionary that by default maps each key to itself, but otherwise + acts like a normal dictionary. + + >>> d = IdentityOverrideMap() + >>> d[42] + 42 + >>> d['speed'] = 'speedo' + >>> print(d['speed']) + speedo + """ + + def __missing__(self, key): + return key + + +class DictStack(list, collections.abc.MutableMapping): + """ + A stack of dictionaries that behaves as a view on those dictionaries, + giving preference to the last. + + >>> stack = DictStack([dict(a=1, c=2), dict(b=2, a=2)]) + >>> stack['a'] + 2 + >>> stack['b'] + 2 + >>> stack['c'] + 2 + >>> len(stack) + 3 + >>> stack.push(dict(a=3)) + >>> stack['a'] + 3 + >>> stack['a'] = 4 + >>> set(stack.keys()) == set(['a', 'b', 'c']) + True + >>> set(stack.items()) == set([('a', 4), ('b', 2), ('c', 2)]) + True + >>> dict(**stack) == dict(stack) == dict(a=4, c=2, b=2) + True + >>> d = stack.pop() + >>> stack['a'] + 2 + >>> d = stack.pop() + >>> stack['a'] + 1 + >>> stack.get('b', None) + >>> 'c' in stack + True + >>> del stack['c'] + >>> dict(stack) + {'a': 1} + """ + + def __iter__(self): + dicts = list.__iter__(self) + return iter(set(itertools.chain.from_iterable(c.keys() for c in dicts))) + + def __getitem__(self, key): + for scope in reversed(tuple(list.__iter__(self))): + if key in scope: + return scope[key] + raise KeyError(key) + + push = list.append + + def __contains__(self, other): + return collections.abc.Mapping.__contains__(self, other) + + def __len__(self): + return len(list(iter(self))) + + def __setitem__(self, key, item): + last = list.__getitem__(self, -1) + return last.__setitem__(key, item) + + def __delitem__(self, key): + last = list.__getitem__(self, -1) + return last.__delitem__(key) + + # workaround for mypy confusion + def pop(self, *args, **kwargs): + return list.pop(self, *args, **kwargs) + + +class BijectiveMap(dict): + """ + A Bijective Map (two-way mapping). + + Implemented as a simple dictionary of 2x the size, mapping values back + to keys. + + Note, this implementation may be incomplete. If there's not a test for + your use case below, it's likely to fail, so please test and send pull + requests or patches for additional functionality needed. + + + >>> m = BijectiveMap() + >>> m['a'] = 'b' + >>> m == {'a': 'b', 'b': 'a'} + True + >>> print(m['b']) + a + + >>> m['c'] = 'd' + >>> len(m) + 2 + + Some weird things happen if you map an item to itself or overwrite a + single key of a pair, so it's disallowed. + + >>> m['e'] = 'e' + Traceback (most recent call last): + ValueError: Key cannot map to itself + + >>> m['d'] = 'e' + Traceback (most recent call last): + ValueError: Key/Value pairs may not overlap + + >>> m['e'] = 'd' + Traceback (most recent call last): + ValueError: Key/Value pairs may not overlap + + >>> print(m.pop('d')) + c + + >>> 'c' in m + False + + >>> m = BijectiveMap(dict(a='b')) + >>> len(m) + 1 + >>> print(m['b']) + a + + >>> m = BijectiveMap() + >>> m.update(a='b') + >>> m['b'] + 'a' + + >>> del m['b'] + >>> len(m) + 0 + >>> 'a' in m + False + """ + + def __init__(self, *args, **kwargs): + super().__init__() + self.update(*args, **kwargs) + + def __setitem__(self, item, value): + if item == value: + raise ValueError("Key cannot map to itself") + overlap = ( + item in self + and self[item] != value + or value in self + and self[value] != item + ) + if overlap: + raise ValueError("Key/Value pairs may not overlap") + super().__setitem__(item, value) + super().__setitem__(value, item) + + def __delitem__(self, item): + self.pop(item) + + def __len__(self): + return super().__len__() // 2 + + def pop(self, key, *args, **kwargs): + mirror = self[key] + super().__delitem__(mirror) + return super().pop(key, *args, **kwargs) + + def update(self, *args, **kwargs): + # build a dictionary using the default constructs + d = dict(*args, **kwargs) + # build this dictionary using transformed keys. + for item in d.items(): + self.__setitem__(*item) + + +class FrozenDict(collections.abc.Mapping, collections.abc.Hashable): + """ + An immutable mapping. + + >>> a = FrozenDict(a=1, b=2) + >>> b = FrozenDict(a=1, b=2) + >>> a == b + True + + >>> a == dict(a=1, b=2) + True + >>> dict(a=1, b=2) == a + True + >>> 'a' in a + True + >>> type(hash(a)) is type(0) + True + >>> set(iter(a)) == {'a', 'b'} + True + >>> len(a) + 2 + >>> a['a'] == a.get('a') == 1 + True + + >>> a['c'] = 3 + Traceback (most recent call last): + ... + TypeError: 'FrozenDict' object does not support item assignment + + >>> a.update(y=3) + Traceback (most recent call last): + ... + AttributeError: 'FrozenDict' object has no attribute 'update' + + Copies should compare equal + + >>> copy.copy(a) == a + True + + Copies should be the same type + + >>> isinstance(copy.copy(a), FrozenDict) + True + + FrozenDict supplies .copy(), even though + collections.abc.Mapping doesn't demand it. + + >>> a.copy() == a + True + >>> a.copy() is not a + True + """ + + __slots__ = ['__data'] + + def __new__(cls, *args, **kwargs): + self = super().__new__(cls) + self.__data = dict(*args, **kwargs) + return self + + # Container + def __contains__(self, key): + return key in self.__data + + # Hashable + def __hash__(self): + return hash(tuple(sorted(self.__data.items()))) + + # Mapping + def __iter__(self): + return iter(self.__data) + + def __len__(self): + return len(self.__data) + + def __getitem__(self, key): + return self.__data[key] + + # override get for efficiency provided by dict + def get(self, *args, **kwargs): + return self.__data.get(*args, **kwargs) + + # override eq to recognize underlying implementation + def __eq__(self, other): + if isinstance(other, FrozenDict): + other = other.__data + return self.__data.__eq__(other) + + def copy(self): + "Return a shallow copy of self" + return copy.copy(self) + + +class Enumeration(ItemsAsAttributes, BijectiveMap): + """ + A convenient way to provide enumerated values + + >>> e = Enumeration('a b c') + >>> e['a'] + 0 + + >>> e.a + 0 + + >>> e[1] + 'b' + + >>> set(e.names) == set('abc') + True + + >>> set(e.codes) == set(range(3)) + True + + >>> e.get('d') is None + True + + Codes need not start with 0 + + >>> e = Enumeration('a b c', range(1, 4)) + >>> e['a'] + 1 + + >>> e[3] + 'c' + """ + + def __init__(self, names, codes=None): + if isinstance(names, str): + names = names.split() + if codes is None: + codes = itertools.count() + super().__init__(zip(names, codes)) + + @property + def names(self): + return (key for key in self if isinstance(key, str)) + + @property + def codes(self): + return (self[name] for name in self.names) + + +class Everything: + """ + A collection "containing" every possible thing. + + >>> 'foo' in Everything() + True + + >>> import random + >>> random.randint(1, 999) in Everything() + True + + >>> random.choice([None, 'foo', 42, ('a', 'b', 'c')]) in Everything() + True + """ + + def __contains__(self, other): + return True + + +class InstrumentedDict(collections.UserDict): + """ + Instrument an existing dictionary with additional + functionality, but always reference and mutate + the original dictionary. + + >>> orig = {'a': 1, 'b': 2} + >>> inst = InstrumentedDict(orig) + >>> inst['a'] + 1 + >>> inst['c'] = 3 + >>> orig['c'] + 3 + >>> inst.keys() == orig.keys() + True + """ + + def __init__(self, data): + super().__init__() + self.data = data + + +class Least: + """ + A value that is always lesser than any other + + >>> least = Least() + >>> 3 < least + False + >>> 3 > least + True + >>> least < 3 + True + >>> least <= 3 + True + >>> least > 3 + False + >>> 'x' > least + True + >>> None > least + True + """ + + def __le__(self, other): + return True + + __lt__ = __le__ + + def __ge__(self, other): + return False + + __gt__ = __ge__ + + +class Greatest: + """ + A value that is always greater than any other + + >>> greatest = Greatest() + >>> 3 < greatest + True + >>> 3 > greatest + False + >>> greatest < 3 + False + >>> greatest > 3 + True + >>> greatest >= 3 + True + >>> 'x' > greatest + False + >>> None > greatest + False + """ + + def __ge__(self, other): + return True + + __gt__ = __ge__ + + def __le__(self, other): + return False + + __lt__ = __le__ + + +def pop_all(items): + """ + Clear items in place and return a copy of items. + + >>> items = [1, 2, 3] + >>> popped = pop_all(items) + >>> popped is items + False + >>> popped + [1, 2, 3] + >>> items + [] + """ + result, items[:] = items[:], [] + return result + + +class FreezableDefaultDict(collections.defaultdict): + """ + Often it is desirable to prevent the mutation of + a default dict after its initial construction, such + as to prevent mutation during iteration. + + >>> dd = FreezableDefaultDict(list) + >>> dd[0].append('1') + >>> dd.freeze() + >>> dd[1] + [] + >>> len(dd) + 1 + """ + + def __missing__(self, key): + return getattr(self, '_frozen', super().__missing__)(key) + + def freeze(self): + self._frozen = lambda key: self.default_factory() + + +class Accumulator: + def __init__(self, initial=0): + self.val = initial + + def __call__(self, val): + self.val += val + return self.val + + +class WeightedLookup(RangeMap): + """ + Given parameters suitable for a dict representing keys + and a weighted proportion, return a RangeMap representing + spans of values proportial to the weights: + + >>> even = WeightedLookup(a=1, b=1) + + [0, 1) -> a + [1, 2) -> b + + >>> lk = WeightedLookup(a=1, b=2) + + [0, 1) -> a + [1, 3) -> b + + >>> lk[.5] + 'a' + >>> lk[1.5] + 'b' + + Adds ``.random()`` to select a random weighted value: + + >>> lk.random() in ['a', 'b'] + True + + >>> choices = [lk.random() for x in range(1000)] + + Statistically speaking, choices should be .5 a:b + >>> ratio = choices.count('a') / choices.count('b') + >>> .4 < ratio < .6 + True + """ + + def __init__(self, *args, **kwargs): + raw = dict(*args, **kwargs) + + # allocate keys by weight + indexes = map(Accumulator(), raw.values()) + super().__init__(zip(indexes, raw.keys()), key_match_comparator=operator.lt) + + def random(self): + lower, upper = self.bounds() + selector = random.random() * upper + return self[selector] diff --git a/setuptools/_vendor/jaraco/collections/py.typed b/setuptools/_vendor/jaraco/collections/py.typed new file mode 100644 index 0000000000..e69de29bb2 diff --git a/setuptools/_vendor/jaraco/context.py b/setuptools/_vendor/jaraco/context.py new file mode 100644 index 0000000000..61b27135df --- /dev/null +++ b/setuptools/_vendor/jaraco/context.py @@ -0,0 +1,361 @@ +from __future__ import annotations + +import contextlib +import functools +import operator +import os +import shutil +import subprocess +import sys +import tempfile +import urllib.request +import warnings +from typing import Iterator + + +if sys.version_info < (3, 12): + from backports import tarfile +else: + import tarfile + + +@contextlib.contextmanager +def pushd(dir: str | os.PathLike) -> Iterator[str | os.PathLike]: + """ + >>> tmp_path = getfixture('tmp_path') + >>> with pushd(tmp_path): + ... assert os.getcwd() == os.fspath(tmp_path) + >>> assert os.getcwd() != os.fspath(tmp_path) + """ + + orig = os.getcwd() + os.chdir(dir) + try: + yield dir + finally: + os.chdir(orig) + + +@contextlib.contextmanager +def tarball( + url, target_dir: str | os.PathLike | None = None +) -> Iterator[str | os.PathLike]: + """ + Get a tarball, extract it, yield, then clean up. + + >>> import urllib.request + >>> url = getfixture('tarfile_served') + >>> target = getfixture('tmp_path') / 'out' + >>> tb = tarball(url, target_dir=target) + >>> import pathlib + >>> with tb as extracted: + ... contents = pathlib.Path(extracted, 'contents.txt').read_text(encoding='utf-8') + >>> assert not os.path.exists(extracted) + """ + if target_dir is None: + target_dir = os.path.basename(url).replace('.tar.gz', '').replace('.tgz', '') + # In the tar command, use --strip-components=1 to strip the first path and + # then + # use -C to cause the files to be extracted to {target_dir}. This ensures + # that we always know where the files were extracted. + os.mkdir(target_dir) + try: + req = urllib.request.urlopen(url) + with tarfile.open(fileobj=req, mode='r|*') as tf: + tf.extractall(path=target_dir, filter=strip_first_component) + yield target_dir + finally: + shutil.rmtree(target_dir) + + +def strip_first_component( + member: tarfile.TarInfo, + path, +) -> tarfile.TarInfo: + _, member.name = member.name.split('/', 1) + return member + + +def _compose(*cmgrs): + """ + Compose any number of dependent context managers into a single one. + + The last, innermost context manager may take arbitrary arguments, but + each successive context manager should accept the result from the + previous as a single parameter. + + Like :func:`jaraco.functools.compose`, behavior works from right to + left, so the context manager should be indicated from outermost to + innermost. + + Example, to create a context manager to change to a temporary + directory: + + >>> temp_dir_as_cwd = _compose(pushd, temp_dir) + >>> with temp_dir_as_cwd() as dir: + ... assert os.path.samefile(os.getcwd(), dir) + """ + + def compose_two(inner, outer): + def composed(*args, **kwargs): + with inner(*args, **kwargs) as saved, outer(saved) as res: + yield res + + return contextlib.contextmanager(composed) + + return functools.reduce(compose_two, reversed(cmgrs)) + + +tarball_cwd = _compose(pushd, tarball) + + +@contextlib.contextmanager +def tarball_context(*args, **kwargs): + warnings.warn( + "tarball_context is deprecated. Use tarball or tarball_cwd instead.", + DeprecationWarning, + stacklevel=2, + ) + pushd_ctx = kwargs.pop('pushd', pushd) + with tarball(*args, **kwargs) as tball, pushd_ctx(tball) as dir: + yield dir + + +def infer_compression(url): + """ + Given a URL or filename, infer the compression code for tar. + + >>> infer_compression('http://foo/bar.tar.gz') + 'z' + >>> infer_compression('http://foo/bar.tgz') + 'z' + >>> infer_compression('file.bz') + 'j' + >>> infer_compression('file.xz') + 'J' + """ + warnings.warn( + "infer_compression is deprecated with no replacement", + DeprecationWarning, + stacklevel=2, + ) + # cheat and just assume it's the last two characters + compression_indicator = url[-2:] + mapping = dict(gz='z', bz='j', xz='J') + # Assume 'z' (gzip) if no match + return mapping.get(compression_indicator, 'z') + + +@contextlib.contextmanager +def temp_dir(remover=shutil.rmtree): + """ + Create a temporary directory context. Pass a custom remover + to override the removal behavior. + + >>> import pathlib + >>> with temp_dir() as the_dir: + ... assert os.path.isdir(the_dir) + ... _ = pathlib.Path(the_dir).joinpath('somefile').write_text('contents', encoding='utf-8') + >>> assert not os.path.exists(the_dir) + """ + temp_dir = tempfile.mkdtemp() + try: + yield temp_dir + finally: + remover(temp_dir) + + +@contextlib.contextmanager +def repo_context(url, branch=None, quiet=True, dest_ctx=temp_dir): + """ + Check out the repo indicated by url. + + If dest_ctx is supplied, it should be a context manager + to yield the target directory for the check out. + """ + exe = 'git' if 'git' in url else 'hg' + with dest_ctx() as repo_dir: + cmd = [exe, 'clone', url, repo_dir] + if branch: + cmd.extend(['--branch', branch]) + devnull = open(os.path.devnull, 'w') + stdout = devnull if quiet else None + subprocess.check_call(cmd, stdout=stdout) + yield repo_dir + + +def null(): + """ + A null context suitable to stand in for a meaningful context. + + >>> with null() as value: + ... assert value is None + + This context is most useful when dealing with two or more code + branches but only some need a context. Wrap the others in a null + context to provide symmetry across all options. + """ + warnings.warn( + "null is deprecated. Use contextlib.nullcontext", + DeprecationWarning, + stacklevel=2, + ) + return contextlib.nullcontext() + + +class ExceptionTrap: + """ + A context manager that will catch certain exceptions and provide an + indication they occurred. + + >>> with ExceptionTrap() as trap: + ... raise Exception() + >>> bool(trap) + True + + >>> with ExceptionTrap() as trap: + ... pass + >>> bool(trap) + False + + >>> with ExceptionTrap(ValueError) as trap: + ... raise ValueError("1 + 1 is not 3") + >>> bool(trap) + True + >>> trap.value + ValueError('1 + 1 is not 3') + >>> trap.tb + + + >>> with ExceptionTrap(ValueError) as trap: + ... raise Exception() + Traceback (most recent call last): + ... + Exception + + >>> bool(trap) + False + """ + + exc_info = None, None, None + + def __init__(self, exceptions=(Exception,)): + self.exceptions = exceptions + + def __enter__(self): + return self + + @property + def type(self): + return self.exc_info[0] + + @property + def value(self): + return self.exc_info[1] + + @property + def tb(self): + return self.exc_info[2] + + def __exit__(self, *exc_info): + type = exc_info[0] + matches = type and issubclass(type, self.exceptions) + if matches: + self.exc_info = exc_info + return matches + + def __bool__(self): + return bool(self.type) + + def raises(self, func, *, _test=bool): + """ + Wrap func and replace the result with the truth + value of the trap (True if an exception occurred). + + First, give the decorator an alias to support Python 3.8 + Syntax. + + >>> raises = ExceptionTrap(ValueError).raises + + Now decorate a function that always fails. + + >>> @raises + ... def fail(): + ... raise ValueError('failed') + >>> fail() + True + """ + + @functools.wraps(func) + def wrapper(*args, **kwargs): + with ExceptionTrap(self.exceptions) as trap: + func(*args, **kwargs) + return _test(trap) + + return wrapper + + def passes(self, func): + """ + Wrap func and replace the result with the truth + value of the trap (True if no exception). + + First, give the decorator an alias to support Python 3.8 + Syntax. + + >>> passes = ExceptionTrap(ValueError).passes + + Now decorate a function that always fails. + + >>> @passes + ... def fail(): + ... raise ValueError('failed') + + >>> fail() + False + """ + return self.raises(func, _test=operator.not_) + + +class suppress(contextlib.suppress, contextlib.ContextDecorator): + """ + A version of contextlib.suppress with decorator support. + + >>> @suppress(KeyError) + ... def key_error(): + ... {}[''] + >>> key_error() + """ + + +class on_interrupt(contextlib.ContextDecorator): + """ + Replace a KeyboardInterrupt with SystemExit(1) + + >>> def do_interrupt(): + ... raise KeyboardInterrupt() + >>> on_interrupt('error')(do_interrupt)() + Traceback (most recent call last): + ... + SystemExit: 1 + >>> on_interrupt('error', code=255)(do_interrupt)() + Traceback (most recent call last): + ... + SystemExit: 255 + >>> on_interrupt('suppress')(do_interrupt)() + >>> with __import__('pytest').raises(KeyboardInterrupt): + ... on_interrupt('ignore')(do_interrupt)() + """ + + def __init__(self, action='error', /, code=1): + self.action = action + self.code = code + + def __enter__(self): + return self + + def __exit__(self, exctype, excinst, exctb): + if exctype is not KeyboardInterrupt or self.action == 'ignore': + return + elif self.action == 'error': + raise SystemExit(self.code) from excinst + return self.action == 'suppress' diff --git a/setuptools/_vendor/jaraco/functools/__init__.py b/setuptools/_vendor/jaraco/functools/__init__.py new file mode 100644 index 0000000000..ca6c22fa9b --- /dev/null +++ b/setuptools/_vendor/jaraco/functools/__init__.py @@ -0,0 +1,633 @@ +import collections.abc +import functools +import inspect +import itertools +import operator +import time +import types +import warnings + +import more_itertools + + +def compose(*funcs): + """ + Compose any number of unary functions into a single unary function. + + >>> import textwrap + >>> expected = str.strip(textwrap.dedent(compose.__doc__)) + >>> strip_and_dedent = compose(str.strip, textwrap.dedent) + >>> strip_and_dedent(compose.__doc__) == expected + True + + Compose also allows the innermost function to take arbitrary arguments. + + >>> round_three = lambda x: round(x, ndigits=3) + >>> f = compose(round_three, int.__truediv__) + >>> [f(3*x, x+1) for x in range(1,10)] + [1.5, 2.0, 2.25, 2.4, 2.5, 2.571, 2.625, 2.667, 2.7] + """ + + def compose_two(f1, f2): + return lambda *args, **kwargs: f1(f2(*args, **kwargs)) + + return functools.reduce(compose_two, funcs) + + +def once(func): + """ + Decorate func so it's only ever called the first time. + + This decorator can ensure that an expensive or non-idempotent function + will not be expensive on subsequent calls and is idempotent. + + >>> add_three = once(lambda a: a+3) + >>> add_three(3) + 6 + >>> add_three(9) + 6 + >>> add_three('12') + 6 + + To reset the stored value, simply clear the property ``saved_result``. + + >>> del add_three.saved_result + >>> add_three(9) + 12 + >>> add_three(8) + 12 + + Or invoke 'reset()' on it. + + >>> add_three.reset() + >>> add_three(-3) + 0 + >>> add_three(0) + 0 + """ + + @functools.wraps(func) + def wrapper(*args, **kwargs): + if not hasattr(wrapper, 'saved_result'): + wrapper.saved_result = func(*args, **kwargs) + return wrapper.saved_result + + wrapper.reset = lambda: vars(wrapper).__delitem__('saved_result') + return wrapper + + +def method_cache(method, cache_wrapper=functools.lru_cache()): + """ + Wrap lru_cache to support storing the cache data in the object instances. + + Abstracts the common paradigm where the method explicitly saves an + underscore-prefixed protected property on first call and returns that + subsequently. + + >>> class MyClass: + ... calls = 0 + ... + ... @method_cache + ... def method(self, value): + ... self.calls += 1 + ... return value + + >>> a = MyClass() + >>> a.method(3) + 3 + >>> for x in range(75): + ... res = a.method(x) + >>> a.calls + 75 + + Note that the apparent behavior will be exactly like that of lru_cache + except that the cache is stored on each instance, so values in one + instance will not flush values from another, and when an instance is + deleted, so are the cached values for that instance. + + >>> b = MyClass() + >>> for x in range(35): + ... res = b.method(x) + >>> b.calls + 35 + >>> a.method(0) + 0 + >>> a.calls + 75 + + Note that if method had been decorated with ``functools.lru_cache()``, + a.calls would have been 76 (due to the cached value of 0 having been + flushed by the 'b' instance). + + Clear the cache with ``.cache_clear()`` + + >>> a.method.cache_clear() + + Same for a method that hasn't yet been called. + + >>> c = MyClass() + >>> c.method.cache_clear() + + Another cache wrapper may be supplied: + + >>> cache = functools.lru_cache(maxsize=2) + >>> MyClass.method2 = method_cache(lambda self: 3, cache_wrapper=cache) + >>> a = MyClass() + >>> a.method2() + 3 + + Caution - do not subsequently wrap the method with another decorator, such + as ``@property``, which changes the semantics of the function. + + See also + http://code.activestate.com/recipes/577452-a-memoize-decorator-for-instance-methods/ + for another implementation and additional justification. + """ + + def wrapper(self, *args, **kwargs): + # it's the first call, replace the method with a cached, bound method + bound_method = types.MethodType(method, self) + cached_method = cache_wrapper(bound_method) + setattr(self, method.__name__, cached_method) + return cached_method(*args, **kwargs) + + # Support cache clear even before cache has been created. + wrapper.cache_clear = lambda: None + + return _special_method_cache(method, cache_wrapper) or wrapper + + +def _special_method_cache(method, cache_wrapper): + """ + Because Python treats special methods differently, it's not + possible to use instance attributes to implement the cached + methods. + + Instead, install the wrapper method under a different name + and return a simple proxy to that wrapper. + + https://github.com/jaraco/jaraco.functools/issues/5 + """ + name = method.__name__ + special_names = '__getattr__', '__getitem__' + + if name not in special_names: + return None + + wrapper_name = '__cached' + name + + def proxy(self, /, *args, **kwargs): + if wrapper_name not in vars(self): + bound = types.MethodType(method, self) + cache = cache_wrapper(bound) + setattr(self, wrapper_name, cache) + else: + cache = getattr(self, wrapper_name) + return cache(*args, **kwargs) + + return proxy + + +def apply(transform): + """ + Decorate a function with a transform function that is + invoked on results returned from the decorated function. + + >>> @apply(reversed) + ... def get_numbers(start): + ... "doc for get_numbers" + ... return range(start, start+3) + >>> list(get_numbers(4)) + [6, 5, 4] + >>> get_numbers.__doc__ + 'doc for get_numbers' + """ + + def wrap(func): + return functools.wraps(func)(compose(transform, func)) + + return wrap + + +def result_invoke(action): + r""" + Decorate a function with an action function that is + invoked on the results returned from the decorated + function (for its side effect), then return the original + result. + + >>> @result_invoke(print) + ... def add_two(a, b): + ... return a + b + >>> x = add_two(2, 3) + 5 + >>> x + 5 + """ + + def wrap(func): + @functools.wraps(func) + def wrapper(*args, **kwargs): + result = func(*args, **kwargs) + action(result) + return result + + return wrapper + + return wrap + + +def invoke(f, /, *args, **kwargs): + """ + Call a function for its side effect after initialization. + + The benefit of using the decorator instead of simply invoking a function + after defining it is that it makes explicit the author's intent for the + function to be called immediately. Whereas if one simply calls the + function immediately, it's less obvious if that was intentional or + incidental. It also avoids repeating the name - the two actions, defining + the function and calling it immediately are modeled separately, but linked + by the decorator construct. + + The benefit of having a function construct (opposed to just invoking some + behavior inline) is to serve as a scope in which the behavior occurs. It + avoids polluting the global namespace with local variables, provides an + anchor on which to attach documentation (docstring), keeps the behavior + logically separated (instead of conceptually separated or not separated at + all), and provides potential to re-use the behavior for testing or other + purposes. + + This function is named as a pithy way to communicate, "call this function + primarily for its side effect", or "while defining this function, also + take it aside and call it". It exists because there's no Python construct + for "define and call" (nor should there be, as decorators serve this need + just fine). The behavior happens immediately and synchronously. + + >>> @invoke + ... def func(): print("called") + called + >>> func() + called + + Use functools.partial to pass parameters to the initial call + + >>> @functools.partial(invoke, name='bingo') + ... def func(name): print('called with', name) + called with bingo + """ + f(*args, **kwargs) + return f + + +class Throttler: + """Rate-limit a function (or other callable).""" + + def __init__(self, func, max_rate=float('Inf')): + if isinstance(func, Throttler): + func = func.func + self.func = func + self.max_rate = max_rate + self.reset() + + def reset(self): + self.last_called = 0 + + def __call__(self, *args, **kwargs): + self._wait() + return self.func(*args, **kwargs) + + def _wait(self): + """Ensure at least 1/max_rate seconds from last call.""" + elapsed = time.time() - self.last_called + must_wait = 1 / self.max_rate - elapsed + time.sleep(max(0, must_wait)) + self.last_called = time.time() + + def __get__(self, obj, owner=None): + return first_invoke(self._wait, functools.partial(self.func, obj)) + + +def first_invoke(func1, func2): + """ + Return a function that when invoked will invoke func1 without + any parameters (for its side effect) and then invoke func2 + with whatever parameters were passed, returning its result. + """ + + def wrapper(*args, **kwargs): + func1() + return func2(*args, **kwargs) + + return wrapper + + +method_caller = first_invoke( + lambda: warnings.warn( + '`jaraco.functools.method_caller` is deprecated, ' + 'use `operator.methodcaller` instead', + DeprecationWarning, + stacklevel=3, + ), + operator.methodcaller, +) + + +def retry_call(func, cleanup=lambda: None, retries=0, trap=()): + """ + Given a callable func, trap the indicated exceptions + for up to 'retries' times, invoking cleanup on the + exception. On the final attempt, allow any exceptions + to propagate. + """ + attempts = itertools.count() if retries == float('inf') else range(retries) + for _ in attempts: + try: + return func() + except trap: + cleanup() + + return func() + + +def retry(*r_args, **r_kwargs): + """ + Decorator wrapper for retry_call. Accepts arguments to retry_call + except func and then returns a decorator for the decorated function. + + Ex: + + >>> @retry(retries=3) + ... def my_func(a, b): + ... "this is my funk" + ... print(a, b) + >>> my_func.__doc__ + 'this is my funk' + """ + + def decorate(func): + @functools.wraps(func) + def wrapper(*f_args, **f_kwargs): + bound = functools.partial(func, *f_args, **f_kwargs) + return retry_call(bound, *r_args, **r_kwargs) + + return wrapper + + return decorate + + +def print_yielded(func): + """ + Convert a generator into a function that prints all yielded elements. + + >>> @print_yielded + ... def x(): + ... yield 3; yield None + >>> x() + 3 + None + """ + print_all = functools.partial(map, print) + print_results = compose(more_itertools.consume, print_all, func) + return functools.wraps(func)(print_results) + + +def pass_none(func): + """ + Wrap func so it's not called if its first param is None. + + >>> print_text = pass_none(print) + >>> print_text('text') + text + >>> print_text(None) + """ + + @functools.wraps(func) + def wrapper(param, /, *args, **kwargs): + if param is not None: + return func(param, *args, **kwargs) + return None + + return wrapper + + +def assign_params(func, namespace): + """ + Assign parameters from namespace where func solicits. + + >>> def func(x, y=3): + ... print(x, y) + >>> assigned = assign_params(func, dict(x=2, z=4)) + >>> assigned() + 2 3 + + The usual errors are raised if a function doesn't receive + its required parameters: + + >>> assigned = assign_params(func, dict(y=3, z=4)) + >>> assigned() + Traceback (most recent call last): + TypeError: func() ...argument... + + It even works on methods: + + >>> class Handler: + ... def meth(self, arg): + ... print(arg) + >>> assign_params(Handler().meth, dict(arg='crystal', foo='clear'))() + crystal + """ + sig = inspect.signature(func) + params = sig.parameters.keys() + call_ns = {k: namespace[k] for k in params if k in namespace} + return functools.partial(func, **call_ns) + + +def save_method_args(method): + """ + Wrap a method such that when it is called, the args and kwargs are + saved on the method. + + >>> class MyClass: + ... @save_method_args + ... def method(self, a, b): + ... print(a, b) + >>> my_ob = MyClass() + >>> my_ob.method(1, 2) + 1 2 + >>> my_ob._saved_method.args + (1, 2) + >>> my_ob._saved_method.kwargs + {} + >>> my_ob.method(a=3, b='foo') + 3 foo + >>> my_ob._saved_method.args + () + >>> my_ob._saved_method.kwargs == dict(a=3, b='foo') + True + + The arguments are stored on the instance, allowing for + different instance to save different args. + + >>> your_ob = MyClass() + >>> your_ob.method({str('x'): 3}, b=[4]) + {'x': 3} [4] + >>> your_ob._saved_method.args + ({'x': 3},) + >>> my_ob._saved_method.args + () + """ + args_and_kwargs = collections.namedtuple('args_and_kwargs', 'args kwargs') + + @functools.wraps(method) + def wrapper(self, /, *args, **kwargs): + attr_name = '_saved_' + method.__name__ + attr = args_and_kwargs(args, kwargs) + setattr(self, attr_name, attr) + return method(self, *args, **kwargs) + + return wrapper + + +def except_(*exceptions, replace=None, use=None): + """ + Replace the indicated exceptions, if raised, with the indicated + literal replacement or evaluated expression (if present). + + >>> safe_int = except_(ValueError)(int) + >>> safe_int('five') + >>> safe_int('5') + 5 + + Specify a literal replacement with ``replace``. + + >>> safe_int_r = except_(ValueError, replace=0)(int) + >>> safe_int_r('five') + 0 + + Provide an expression to ``use`` to pass through particular parameters. + + >>> safe_int_pt = except_(ValueError, use='args[0]')(int) + >>> safe_int_pt('five') + 'five' + + """ + + def decorate(func): + @functools.wraps(func) + def wrapper(*args, **kwargs): + try: + return func(*args, **kwargs) + except exceptions: + try: + return eval(use) + except TypeError: + return replace + + return wrapper + + return decorate + + +def identity(x): + """ + Return the argument. + + >>> o = object() + >>> identity(o) is o + True + """ + return x + + +def bypass_when(check, *, _op=identity): + """ + Decorate a function to return its parameter when ``check``. + + >>> bypassed = [] # False + + >>> @bypass_when(bypassed) + ... def double(x): + ... return x * 2 + >>> double(2) + 4 + >>> bypassed[:] = [object()] # True + >>> double(2) + 2 + """ + + def decorate(func): + @functools.wraps(func) + def wrapper(param, /): + return param if _op(check) else func(param) + + return wrapper + + return decorate + + +def bypass_unless(check): + """ + Decorate a function to return its parameter unless ``check``. + + >>> enabled = [object()] # True + + >>> @bypass_unless(enabled) + ... def double(x): + ... return x * 2 + >>> double(2) + 4 + >>> del enabled[:] # False + >>> double(2) + 2 + """ + return bypass_when(check, _op=operator.not_) + + +@functools.singledispatch +def _splat_inner(args, func): + """Splat args to func.""" + return func(*args) + + +@_splat_inner.register +def _(args: collections.abc.Mapping, func): + """Splat kargs to func as kwargs.""" + return func(**args) + + +def splat(func): + """ + Wrap func to expect its parameters to be passed positionally in a tuple. + + Has a similar effect to that of ``itertools.starmap`` over + simple ``map``. + + >>> pairs = [(-1, 1), (0, 2)] + >>> more_itertools.consume(itertools.starmap(print, pairs)) + -1 1 + 0 2 + >>> more_itertools.consume(map(splat(print), pairs)) + -1 1 + 0 2 + + The approach generalizes to other iterators that don't have a "star" + equivalent, such as a "starfilter". + + >>> list(filter(splat(operator.add), pairs)) + [(0, 2)] + + Splat also accepts a mapping argument. + + >>> def is_nice(msg, code): + ... return "smile" in msg or code == 0 + >>> msgs = [ + ... dict(msg='smile!', code=20), + ... dict(msg='error :(', code=1), + ... dict(msg='unknown', code=0), + ... ] + >>> for msg in filter(splat(is_nice), msgs): + ... print(msg) + {'msg': 'smile!', 'code': 20} + {'msg': 'unknown', 'code': 0} + """ + return functools.wraps(func)(functools.partial(_splat_inner, func=func)) diff --git a/setuptools/_vendor/jaraco/functools/__init__.pyi b/setuptools/_vendor/jaraco/functools/__init__.pyi new file mode 100644 index 0000000000..19191bf93e --- /dev/null +++ b/setuptools/_vendor/jaraco/functools/__init__.pyi @@ -0,0 +1,125 @@ +from collections.abc import Callable, Hashable, Iterator +from functools import partial +from operator import methodcaller +import sys +from typing import ( + Any, + Generic, + Protocol, + TypeVar, + overload, +) + +if sys.version_info >= (3, 10): + from typing import Concatenate, ParamSpec +else: + from typing_extensions import Concatenate, ParamSpec + +_P = ParamSpec('_P') +_R = TypeVar('_R') +_T = TypeVar('_T') +_R1 = TypeVar('_R1') +_R2 = TypeVar('_R2') +_V = TypeVar('_V') +_S = TypeVar('_S') +_R_co = TypeVar('_R_co', covariant=True) + +class _OnceCallable(Protocol[_P, _R]): + saved_result: _R + reset: Callable[[], None] + def __call__(self, *args: _P.args, **kwargs: _P.kwargs) -> _R: ... + +class _ProxyMethodCacheWrapper(Protocol[_R_co]): + cache_clear: Callable[[], None] + def __call__(self, *args: Hashable, **kwargs: Hashable) -> _R_co: ... + +class _MethodCacheWrapper(Protocol[_R_co]): + def cache_clear(self) -> None: ... + def __call__(self, *args: Hashable, **kwargs: Hashable) -> _R_co: ... + +# `compose()` overloads below will cover most use cases. + +@overload +def compose( + __func1: Callable[[_R], _T], + __func2: Callable[_P, _R], + /, +) -> Callable[_P, _T]: ... +@overload +def compose( + __func1: Callable[[_R], _T], + __func2: Callable[[_R1], _R], + __func3: Callable[_P, _R1], + /, +) -> Callable[_P, _T]: ... +@overload +def compose( + __func1: Callable[[_R], _T], + __func2: Callable[[_R2], _R], + __func3: Callable[[_R1], _R2], + __func4: Callable[_P, _R1], + /, +) -> Callable[_P, _T]: ... +def once(func: Callable[_P, _R]) -> _OnceCallable[_P, _R]: ... +def method_cache( + method: Callable[..., _R], + cache_wrapper: Callable[[Callable[..., _R]], _MethodCacheWrapper[_R]] = ..., +) -> _MethodCacheWrapper[_R] | _ProxyMethodCacheWrapper[_R]: ... +def apply( + transform: Callable[[_R], _T] +) -> Callable[[Callable[_P, _R]], Callable[_P, _T]]: ... +def result_invoke( + action: Callable[[_R], Any] +) -> Callable[[Callable[_P, _R]], Callable[_P, _R]]: ... +def invoke( + f: Callable[_P, _R], /, *args: _P.args, **kwargs: _P.kwargs +) -> Callable[_P, _R]: ... + +class Throttler(Generic[_R]): + last_called: float + func: Callable[..., _R] + max_rate: float + def __init__( + self, func: Callable[..., _R] | Throttler[_R], max_rate: float = ... + ) -> None: ... + def reset(self) -> None: ... + def __call__(self, *args: Any, **kwargs: Any) -> _R: ... + def __get__(self, obj: Any, owner: type[Any] | None = ...) -> Callable[..., _R]: ... + +def first_invoke( + func1: Callable[..., Any], func2: Callable[_P, _R] +) -> Callable[_P, _R]: ... + +method_caller: Callable[..., methodcaller] + +def retry_call( + func: Callable[..., _R], + cleanup: Callable[..., None] = ..., + retries: int | float = ..., + trap: type[BaseException] | tuple[type[BaseException], ...] = ..., +) -> _R: ... +def retry( + cleanup: Callable[..., None] = ..., + retries: int | float = ..., + trap: type[BaseException] | tuple[type[BaseException], ...] = ..., +) -> Callable[[Callable[..., _R]], Callable[..., _R]]: ... +def print_yielded(func: Callable[_P, Iterator[Any]]) -> Callable[_P, None]: ... +def pass_none( + func: Callable[Concatenate[_T, _P], _R] +) -> Callable[Concatenate[_T, _P], _R]: ... +def assign_params( + func: Callable[..., _R], namespace: dict[str, Any] +) -> partial[_R]: ... +def save_method_args( + method: Callable[Concatenate[_S, _P], _R] +) -> Callable[Concatenate[_S, _P], _R]: ... +def except_( + *exceptions: type[BaseException], replace: Any = ..., use: Any = ... +) -> Callable[[Callable[_P, Any]], Callable[_P, Any]]: ... +def identity(x: _T) -> _T: ... +def bypass_when( + check: _V, *, _op: Callable[[_V], Any] = ... +) -> Callable[[Callable[[_T], _R]], Callable[[_T], _T | _R]]: ... +def bypass_unless( + check: Any, +) -> Callable[[Callable[[_T], _R]], Callable[[_T], _T | _R]]: ... diff --git a/setuptools/_vendor/jaraco/functools/py.typed b/setuptools/_vendor/jaraco/functools/py.typed new file mode 100644 index 0000000000..e69de29bb2 diff --git a/setuptools/_vendor/jaraco/text/Lorem ipsum.txt b/setuptools/_vendor/jaraco/text/Lorem ipsum.txt new file mode 100644 index 0000000000..986f944b60 --- /dev/null +++ b/setuptools/_vendor/jaraco/text/Lorem ipsum.txt @@ -0,0 +1,2 @@ +Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. +Curabitur pretium tincidunt lacus. Nulla gravida orci a odio. Nullam varius, turpis et commodo pharetra, est eros bibendum elit, nec luctus magna felis sollicitudin mauris. Integer in mauris eu nibh euismod gravida. Duis ac tellus et risus vulputate vehicula. Donec lobortis risus a elit. Etiam tempor. Ut ullamcorper, ligula eu tempor congue, eros est euismod turpis, id tincidunt sapien risus a quam. Maecenas fermentum consequat mi. Donec fermentum. Pellentesque malesuada nulla a mi. Duis sapien sem, aliquet nec, commodo eget, consequat quis, neque. Aliquam faucibus, elit ut dictum aliquet, felis nisl adipiscing sapien, sed malesuada diam lacus eget erat. Cras mollis scelerisque nunc. Nullam arcu. Aliquam consequat. Curabitur augue lorem, dapibus quis, laoreet et, pretium ac, nisi. Aenean magna nisl, mollis quis, molestie eu, feugiat in, orci. In hac habitasse platea dictumst. diff --git a/setuptools/_vendor/jaraco/text/__init__.py b/setuptools/_vendor/jaraco/text/__init__.py new file mode 100644 index 0000000000..0fabd0c3f0 --- /dev/null +++ b/setuptools/_vendor/jaraco/text/__init__.py @@ -0,0 +1,624 @@ +import re +import itertools +import textwrap +import functools + +try: + from importlib.resources import files # type: ignore +except ImportError: # pragma: nocover + from importlib_resources import files # type: ignore + +from jaraco.functools import compose, method_cache +from jaraco.context import ExceptionTrap + + +def substitution(old, new): + """ + Return a function that will perform a substitution on a string + """ + return lambda s: s.replace(old, new) + + +def multi_substitution(*substitutions): + """ + Take a sequence of pairs specifying substitutions, and create + a function that performs those substitutions. + + >>> multi_substitution(('foo', 'bar'), ('bar', 'baz'))('foo') + 'baz' + """ + substitutions = itertools.starmap(substitution, substitutions) + # compose function applies last function first, so reverse the + # substitutions to get the expected order. + substitutions = reversed(tuple(substitutions)) + return compose(*substitutions) + + +class FoldedCase(str): + """ + A case insensitive string class; behaves just like str + except compares equal when the only variation is case. + + >>> s = FoldedCase('hello world') + + >>> s == 'Hello World' + True + + >>> 'Hello World' == s + True + + >>> s != 'Hello World' + False + + >>> s.index('O') + 4 + + >>> s.split('O') + ['hell', ' w', 'rld'] + + >>> sorted(map(FoldedCase, ['GAMMA', 'alpha', 'Beta'])) + ['alpha', 'Beta', 'GAMMA'] + + Sequence membership is straightforward. + + >>> "Hello World" in [s] + True + >>> s in ["Hello World"] + True + + Allows testing for set inclusion, but candidate and elements + must both be folded. + + >>> FoldedCase("Hello World") in {s} + True + >>> s in {FoldedCase("Hello World")} + True + + String inclusion works as long as the FoldedCase object + is on the right. + + >>> "hello" in FoldedCase("Hello World") + True + + But not if the FoldedCase object is on the left: + + >>> FoldedCase('hello') in 'Hello World' + False + + In that case, use ``in_``: + + >>> FoldedCase('hello').in_('Hello World') + True + + >>> FoldedCase('hello') > FoldedCase('Hello') + False + + >>> FoldedCase('ß') == FoldedCase('ss') + True + """ + + def __lt__(self, other): + return self.casefold() < other.casefold() + + def __gt__(self, other): + return self.casefold() > other.casefold() + + def __eq__(self, other): + return self.casefold() == other.casefold() + + def __ne__(self, other): + return self.casefold() != other.casefold() + + def __hash__(self): + return hash(self.casefold()) + + def __contains__(self, other): + return super().casefold().__contains__(other.casefold()) + + def in_(self, other): + "Does self appear in other?" + return self in FoldedCase(other) + + # cache casefold since it's likely to be called frequently. + @method_cache + def casefold(self): + return super().casefold() + + def index(self, sub): + return self.casefold().index(sub.casefold()) + + def split(self, splitter=' ', maxsplit=0): + pattern = re.compile(re.escape(splitter), re.I) + return pattern.split(self, maxsplit) + + +# Python 3.8 compatibility +_unicode_trap = ExceptionTrap(UnicodeDecodeError) + + +@_unicode_trap.passes +def is_decodable(value): + r""" + Return True if the supplied value is decodable (using the default + encoding). + + >>> is_decodable(b'\xff') + False + >>> is_decodable(b'\x32') + True + """ + value.decode() + + +def is_binary(value): + r""" + Return True if the value appears to be binary (that is, it's a byte + string and isn't decodable). + + >>> is_binary(b'\xff') + True + >>> is_binary('\xff') + False + """ + return isinstance(value, bytes) and not is_decodable(value) + + +def trim(s): + r""" + Trim something like a docstring to remove the whitespace that + is common due to indentation and formatting. + + >>> trim("\n\tfoo = bar\n\t\tbar = baz\n") + 'foo = bar\n\tbar = baz' + """ + return textwrap.dedent(s).strip() + + +def wrap(s): + """ + Wrap lines of text, retaining existing newlines as + paragraph markers. + + >>> print(wrap(lorem_ipsum)) + Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do + eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad + minim veniam, quis nostrud exercitation ullamco laboris nisi ut + aliquip ex ea commodo consequat. Duis aute irure dolor in + reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla + pariatur. Excepteur sint occaecat cupidatat non proident, sunt in + culpa qui officia deserunt mollit anim id est laborum. + + Curabitur pretium tincidunt lacus. Nulla gravida orci a odio. Nullam + varius, turpis et commodo pharetra, est eros bibendum elit, nec luctus + magna felis sollicitudin mauris. Integer in mauris eu nibh euismod + gravida. Duis ac tellus et risus vulputate vehicula. Donec lobortis + risus a elit. Etiam tempor. Ut ullamcorper, ligula eu tempor congue, + eros est euismod turpis, id tincidunt sapien risus a quam. Maecenas + fermentum consequat mi. Donec fermentum. Pellentesque malesuada nulla + a mi. Duis sapien sem, aliquet nec, commodo eget, consequat quis, + neque. Aliquam faucibus, elit ut dictum aliquet, felis nisl adipiscing + sapien, sed malesuada diam lacus eget erat. Cras mollis scelerisque + nunc. Nullam arcu. Aliquam consequat. Curabitur augue lorem, dapibus + quis, laoreet et, pretium ac, nisi. Aenean magna nisl, mollis quis, + molestie eu, feugiat in, orci. In hac habitasse platea dictumst. + """ + paragraphs = s.splitlines() + wrapped = ('\n'.join(textwrap.wrap(para)) for para in paragraphs) + return '\n\n'.join(wrapped) + + +def unwrap(s): + r""" + Given a multi-line string, return an unwrapped version. + + >>> wrapped = wrap(lorem_ipsum) + >>> wrapped.count('\n') + 20 + >>> unwrapped = unwrap(wrapped) + >>> unwrapped.count('\n') + 1 + >>> print(unwrapped) + Lorem ipsum dolor sit amet, consectetur adipiscing ... + Curabitur pretium tincidunt lacus. Nulla gravida orci ... + + """ + paragraphs = re.split(r'\n\n+', s) + cleaned = (para.replace('\n', ' ') for para in paragraphs) + return '\n'.join(cleaned) + + +lorem_ipsum: str = ( + files(__name__).joinpath('Lorem ipsum.txt').read_text(encoding='utf-8') +) + + +class Splitter: + """object that will split a string with the given arguments for each call + + >>> s = Splitter(',') + >>> s('hello, world, this is your, master calling') + ['hello', ' world', ' this is your', ' master calling'] + """ + + def __init__(self, *args): + self.args = args + + def __call__(self, s): + return s.split(*self.args) + + +def indent(string, prefix=' ' * 4): + """ + >>> indent('foo') + ' foo' + """ + return prefix + string + + +class WordSet(tuple): + """ + Given an identifier, return the words that identifier represents, + whether in camel case, underscore-separated, etc. + + >>> WordSet.parse("camelCase") + ('camel', 'Case') + + >>> WordSet.parse("under_sep") + ('under', 'sep') + + Acronyms should be retained + + >>> WordSet.parse("firstSNL") + ('first', 'SNL') + + >>> WordSet.parse("you_and_I") + ('you', 'and', 'I') + + >>> WordSet.parse("A simple test") + ('A', 'simple', 'test') + + Multiple caps should not interfere with the first cap of another word. + + >>> WordSet.parse("myABCClass") + ('my', 'ABC', 'Class') + + The result is a WordSet, providing access to other forms. + + >>> WordSet.parse("myABCClass").underscore_separated() + 'my_ABC_Class' + + >>> WordSet.parse('a-command').camel_case() + 'ACommand' + + >>> WordSet.parse('someIdentifier').lowered().space_separated() + 'some identifier' + + Slices of the result should return another WordSet. + + >>> WordSet.parse('taken-out-of-context')[1:].underscore_separated() + 'out_of_context' + + >>> WordSet.from_class_name(WordSet()).lowered().space_separated() + 'word set' + + >>> example = WordSet.parse('figured it out') + >>> example.headless_camel_case() + 'figuredItOut' + >>> example.dash_separated() + 'figured-it-out' + + """ + + _pattern = re.compile('([A-Z]?[a-z]+)|([A-Z]+(?![a-z]))') + + def capitalized(self): + return WordSet(word.capitalize() for word in self) + + def lowered(self): + return WordSet(word.lower() for word in self) + + def camel_case(self): + return ''.join(self.capitalized()) + + def headless_camel_case(self): + words = iter(self) + first = next(words).lower() + new_words = itertools.chain((first,), WordSet(words).camel_case()) + return ''.join(new_words) + + def underscore_separated(self): + return '_'.join(self) + + def dash_separated(self): + return '-'.join(self) + + def space_separated(self): + return ' '.join(self) + + def trim_right(self, item): + """ + Remove the item from the end of the set. + + >>> WordSet.parse('foo bar').trim_right('foo') + ('foo', 'bar') + >>> WordSet.parse('foo bar').trim_right('bar') + ('foo',) + >>> WordSet.parse('').trim_right('bar') + () + """ + return self[:-1] if self and self[-1] == item else self + + def trim_left(self, item): + """ + Remove the item from the beginning of the set. + + >>> WordSet.parse('foo bar').trim_left('foo') + ('bar',) + >>> WordSet.parse('foo bar').trim_left('bar') + ('foo', 'bar') + >>> WordSet.parse('').trim_left('bar') + () + """ + return self[1:] if self and self[0] == item else self + + def trim(self, item): + """ + >>> WordSet.parse('foo bar').trim('foo') + ('bar',) + """ + return self.trim_left(item).trim_right(item) + + def __getitem__(self, item): + result = super().__getitem__(item) + if isinstance(item, slice): + result = WordSet(result) + return result + + @classmethod + def parse(cls, identifier): + matches = cls._pattern.finditer(identifier) + return WordSet(match.group(0) for match in matches) + + @classmethod + def from_class_name(cls, subject): + return cls.parse(subject.__class__.__name__) + + +# for backward compatibility +words = WordSet.parse + + +def simple_html_strip(s): + r""" + Remove HTML from the string `s`. + + >>> str(simple_html_strip('')) + '' + + >>> print(simple_html_strip('A stormy day in paradise')) + A stormy day in paradise + + >>> print(simple_html_strip('Somebody tell the truth.')) + Somebody tell the truth. + + >>> print(simple_html_strip('What about
    \nmultiple lines?')) + What about + multiple lines? + """ + html_stripper = re.compile('()|(<[^>]*>)|([^<]+)', re.DOTALL) + texts = (match.group(3) or '' for match in html_stripper.finditer(s)) + return ''.join(texts) + + +class SeparatedValues(str): + """ + A string separated by a separator. Overrides __iter__ for getting + the values. + + >>> list(SeparatedValues('a,b,c')) + ['a', 'b', 'c'] + + Whitespace is stripped and empty values are discarded. + + >>> list(SeparatedValues(' a, b , c, ')) + ['a', 'b', 'c'] + """ + + separator = ',' + + def __iter__(self): + parts = self.split(self.separator) + return filter(None, (part.strip() for part in parts)) + + +class Stripper: + r""" + Given a series of lines, find the common prefix and strip it from them. + + >>> lines = [ + ... 'abcdefg\n', + ... 'abc\n', + ... 'abcde\n', + ... ] + >>> res = Stripper.strip_prefix(lines) + >>> res.prefix + 'abc' + >>> list(res.lines) + ['defg\n', '\n', 'de\n'] + + If no prefix is common, nothing should be stripped. + + >>> lines = [ + ... 'abcd\n', + ... '1234\n', + ... ] + >>> res = Stripper.strip_prefix(lines) + >>> res.prefix = '' + >>> list(res.lines) + ['abcd\n', '1234\n'] + """ + + def __init__(self, prefix, lines): + self.prefix = prefix + self.lines = map(self, lines) + + @classmethod + def strip_prefix(cls, lines): + prefix_lines, lines = itertools.tee(lines) + prefix = functools.reduce(cls.common_prefix, prefix_lines) + return cls(prefix, lines) + + def __call__(self, line): + if not self.prefix: + return line + null, prefix, rest = line.partition(self.prefix) + return rest + + @staticmethod + def common_prefix(s1, s2): + """ + Return the common prefix of two lines. + """ + index = min(len(s1), len(s2)) + while s1[:index] != s2[:index]: + index -= 1 + return s1[:index] + + +def remove_prefix(text, prefix): + """ + Remove the prefix from the text if it exists. + + >>> remove_prefix('underwhelming performance', 'underwhelming ') + 'performance' + + >>> remove_prefix('something special', 'sample') + 'something special' + """ + null, prefix, rest = text.rpartition(prefix) + return rest + + +def remove_suffix(text, suffix): + """ + Remove the suffix from the text if it exists. + + >>> remove_suffix('name.git', '.git') + 'name' + + >>> remove_suffix('something special', 'sample') + 'something special' + """ + rest, suffix, null = text.partition(suffix) + return rest + + +def normalize_newlines(text): + r""" + Replace alternate newlines with the canonical newline. + + >>> normalize_newlines('Lorem Ipsum\u2029') + 'Lorem Ipsum\n' + >>> normalize_newlines('Lorem Ipsum\r\n') + 'Lorem Ipsum\n' + >>> normalize_newlines('Lorem Ipsum\x85') + 'Lorem Ipsum\n' + """ + newlines = ['\r\n', '\r', '\n', '\u0085', '\u2028', '\u2029'] + pattern = '|'.join(newlines) + return re.sub(pattern, '\n', text) + + +def _nonblank(str): + return str and not str.startswith('#') + + +@functools.singledispatch +def yield_lines(iterable): + r""" + Yield valid lines of a string or iterable. + + >>> list(yield_lines('')) + [] + >>> list(yield_lines(['foo', 'bar'])) + ['foo', 'bar'] + >>> list(yield_lines('foo\nbar')) + ['foo', 'bar'] + >>> list(yield_lines('\nfoo\n#bar\nbaz #comment')) + ['foo', 'baz #comment'] + >>> list(yield_lines(['foo\nbar', 'baz', 'bing\n\n\n'])) + ['foo', 'bar', 'baz', 'bing'] + """ + return itertools.chain.from_iterable(map(yield_lines, iterable)) + + +@yield_lines.register(str) +def _(text): + return filter(_nonblank, map(str.strip, text.splitlines())) + + +def drop_comment(line): + """ + Drop comments. + + >>> drop_comment('foo # bar') + 'foo' + + A hash without a space may be in a URL. + + >>> drop_comment('http://example.com/foo#bar') + 'http://example.com/foo#bar' + """ + return line.partition(' #')[0] + + +def join_continuation(lines): + r""" + Join lines continued by a trailing backslash. + + >>> list(join_continuation(['foo \\', 'bar', 'baz'])) + ['foobar', 'baz'] + >>> list(join_continuation(['foo \\', 'bar', 'baz'])) + ['foobar', 'baz'] + >>> list(join_continuation(['foo \\', 'bar \\', 'baz'])) + ['foobarbaz'] + + Not sure why, but... + The character preceding the backslash is also elided. + + >>> list(join_continuation(['goo\\', 'dly'])) + ['godly'] + + A terrible idea, but... + If no line is available to continue, suppress the lines. + + >>> list(join_continuation(['foo', 'bar\\', 'baz\\'])) + ['foo'] + """ + lines = iter(lines) + for item in lines: + while item.endswith('\\'): + try: + item = item[:-2].strip() + next(lines) + except StopIteration: + return + yield item + + +def read_newlines(filename, limit=1024): + r""" + >>> tmp_path = getfixture('tmp_path') + >>> filename = tmp_path / 'out.txt' + >>> _ = filename.write_text('foo\n', newline='', encoding='utf-8') + >>> read_newlines(filename) + '\n' + >>> _ = filename.write_text('foo\r\n', newline='', encoding='utf-8') + >>> read_newlines(filename) + '\r\n' + >>> _ = filename.write_text('foo\r\nbar\nbing\r', newline='', encoding='utf-8') + >>> read_newlines(filename) + ('\r', '\n', '\r\n') + """ + with open(filename, encoding='utf-8') as fp: + fp.read(limit) + return fp.newlines diff --git a/setuptools/_vendor/jaraco/text/layouts.py b/setuptools/_vendor/jaraco/text/layouts.py new file mode 100644 index 0000000000..9636f0f7b5 --- /dev/null +++ b/setuptools/_vendor/jaraco/text/layouts.py @@ -0,0 +1,25 @@ +qwerty = "-=qwertyuiop[]asdfghjkl;'zxcvbnm,./_+QWERTYUIOP{}ASDFGHJKL:\"ZXCVBNM<>?" +dvorak = "[]',.pyfgcrl/=aoeuidhtns-;qjkxbmwvz{}\"<>PYFGCRL?+AOEUIDHTNS_:QJKXBMWVZ" + + +to_dvorak = str.maketrans(qwerty, dvorak) +to_qwerty = str.maketrans(dvorak, qwerty) + + +def translate(input, translation): + """ + >>> translate('dvorak', to_dvorak) + 'ekrpat' + >>> translate('qwerty', to_qwerty) + 'x,dokt' + """ + return input.translate(translation) + + +def _translate_stream(stream, translation): + """ + >>> import io + >>> _translate_stream(io.StringIO('foo'), to_dvorak) + urr + """ + print(translate(stream.read(), translation)) diff --git a/setuptools/_vendor/jaraco/text/show-newlines.py b/setuptools/_vendor/jaraco/text/show-newlines.py new file mode 100644 index 0000000000..e11d1ba428 --- /dev/null +++ b/setuptools/_vendor/jaraco/text/show-newlines.py @@ -0,0 +1,33 @@ +import autocommand +import inflect + +from more_itertools import always_iterable + +import jaraco.text + + +def report_newlines(filename): + r""" + Report the newlines in the indicated file. + + >>> tmp_path = getfixture('tmp_path') + >>> filename = tmp_path / 'out.txt' + >>> _ = filename.write_text('foo\nbar\n', newline='', encoding='utf-8') + >>> report_newlines(filename) + newline is '\n' + >>> filename = tmp_path / 'out.txt' + >>> _ = filename.write_text('foo\nbar\r\n', newline='', encoding='utf-8') + >>> report_newlines(filename) + newlines are ('\n', '\r\n') + """ + newlines = jaraco.text.read_newlines(filename) + count = len(tuple(always_iterable(newlines))) + engine = inflect.engine() + print( + engine.plural_noun("newline", count), + engine.plural_verb("is", count), + repr(newlines), + ) + + +autocommand.autocommand(__name__)(report_newlines) diff --git a/setuptools/_vendor/jaraco/text/strip-prefix.py b/setuptools/_vendor/jaraco/text/strip-prefix.py new file mode 100644 index 0000000000..761717a9b9 --- /dev/null +++ b/setuptools/_vendor/jaraco/text/strip-prefix.py @@ -0,0 +1,21 @@ +import sys + +import autocommand + +from jaraco.text import Stripper + + +def strip_prefix(): + r""" + Strip any common prefix from stdin. + + >>> import io, pytest + >>> getfixture('monkeypatch').setattr('sys.stdin', io.StringIO('abcdef\nabc123')) + >>> strip_prefix() + def + 123 + """ + sys.stdout.writelines(Stripper.strip_prefix(sys.stdin).lines) + + +autocommand.autocommand(__name__)(strip_prefix) diff --git a/setuptools/_vendor/jaraco/text/to-dvorak.py b/setuptools/_vendor/jaraco/text/to-dvorak.py new file mode 100644 index 0000000000..a6d5da80b3 --- /dev/null +++ b/setuptools/_vendor/jaraco/text/to-dvorak.py @@ -0,0 +1,6 @@ +import sys + +from . import layouts + + +__name__ == '__main__' and layouts._translate_stream(sys.stdin, layouts.to_dvorak) diff --git a/setuptools/_vendor/jaraco/text/to-qwerty.py b/setuptools/_vendor/jaraco/text/to-qwerty.py new file mode 100644 index 0000000000..abe2728662 --- /dev/null +++ b/setuptools/_vendor/jaraco/text/to-qwerty.py @@ -0,0 +1,6 @@ +import sys + +from . import layouts + + +__name__ == '__main__' and layouts._translate_stream(sys.stdin, layouts.to_qwerty) diff --git a/setuptools/_vendor/more_itertools-10.3.0.dist-info/INSTALLER b/setuptools/_vendor/more_itertools-10.3.0.dist-info/INSTALLER new file mode 100644 index 0000000000..a1b589e38a --- /dev/null +++ b/setuptools/_vendor/more_itertools-10.3.0.dist-info/INSTALLER @@ -0,0 +1 @@ +pip diff --git a/setuptools/_vendor/more_itertools-10.3.0.dist-info/LICENSE b/setuptools/_vendor/more_itertools-10.3.0.dist-info/LICENSE new file mode 100644 index 0000000000..0a523bece3 --- /dev/null +++ b/setuptools/_vendor/more_itertools-10.3.0.dist-info/LICENSE @@ -0,0 +1,19 @@ +Copyright (c) 2012 Erik Rose + +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies +of the Software, and to permit persons to whom the Software is furnished to do +so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/setuptools/_vendor/more_itertools-10.3.0.dist-info/METADATA b/setuptools/_vendor/more_itertools-10.3.0.dist-info/METADATA new file mode 100644 index 0000000000..fb41b0cfe6 --- /dev/null +++ b/setuptools/_vendor/more_itertools-10.3.0.dist-info/METADATA @@ -0,0 +1,266 @@ +Metadata-Version: 2.1 +Name: more-itertools +Version: 10.3.0 +Summary: More routines for operating on iterables, beyond itertools +Keywords: itertools,iterator,iteration,filter,peek,peekable,chunk,chunked +Author-email: Erik Rose +Requires-Python: >=3.8 +Description-Content-Type: text/x-rst +Classifier: Development Status :: 5 - Production/Stable +Classifier: Intended Audience :: Developers +Classifier: Natural Language :: English +Classifier: License :: OSI Approved :: MIT License +Classifier: Programming Language :: Python :: 3 +Classifier: Programming Language :: Python :: 3.8 +Classifier: Programming Language :: Python :: 3.9 +Classifier: Programming Language :: Python :: 3.10 +Classifier: Programming Language :: Python :: 3.11 +Classifier: Programming Language :: Python :: 3.12 +Classifier: Programming Language :: Python :: 3 :: Only +Classifier: Programming Language :: Python :: Implementation :: CPython +Classifier: Programming Language :: Python :: Implementation :: PyPy +Classifier: Topic :: Software Development :: Libraries +Project-URL: Homepage, https://github.com/more-itertools/more-itertools + +============== +More Itertools +============== + +.. image:: https://readthedocs.org/projects/more-itertools/badge/?version=latest + :target: https://more-itertools.readthedocs.io/en/stable/ + +Python's ``itertools`` library is a gem - you can compose elegant solutions +for a variety of problems with the functions it provides. In ``more-itertools`` +we collect additional building blocks, recipes, and routines for working with +Python iterables. + ++------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ +| Grouping | `chunked `_, | +| | `ichunked `_, | +| | `chunked_even `_, | +| | `sliced `_, | +| | `constrained_batches `_, | +| | `distribute `_, | +| | `divide `_, | +| | `split_at `_, | +| | `split_before `_, | +| | `split_after `_, | +| | `split_into `_, | +| | `split_when `_, | +| | `bucket `_, | +| | `unzip `_, | +| | `batched `_, | +| | `grouper `_, | +| | `partition `_, | +| | `transpose `_ | ++------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ +| Lookahead and lookback | `spy `_, | +| | `peekable `_, | +| | `seekable `_ | ++------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ +| Windowing | `windowed `_, | +| | `substrings `_, | +| | `substrings_indexes `_, | +| | `stagger `_, | +| | `windowed_complete `_, | +| | `pairwise `_, | +| | `triplewise `_, | +| | `sliding_window `_, | +| | `subslices `_ | ++------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ +| Augmenting | `count_cycle `_, | +| | `intersperse `_, | +| | `padded `_, | +| | `repeat_each `_, | +| | `mark_ends `_, | +| | `repeat_last `_, | +| | `adjacent `_, | +| | `groupby_transform `_, | +| | `pad_none `_, | +| | `ncycles `_ | ++------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ +| Combining | `collapse `_, | +| | `sort_together `_, | +| | `interleave `_, | +| | `interleave_longest `_, | +| | `interleave_evenly `_, | +| | `zip_offset `_, | +| | `zip_equal `_, | +| | `zip_broadcast `_, | +| | `flatten `_, | +| | `roundrobin `_, | +| | `prepend `_, | +| | `value_chain `_, | +| | `partial_product `_ | ++------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ +| Summarizing | `ilen `_, | +| | `unique_to_each `_, | +| | `sample `_, | +| | `consecutive_groups `_, | +| | `run_length `_, | +| | `map_reduce `_, | +| | `join_mappings `_, | +| | `exactly_n `_, | +| | `is_sorted `_, | +| | `all_equal `_, | +| | `all_unique `_, | +| | `minmax `_, | +| | `first_true `_, | +| | `quantify `_, | +| | `iequals `_ | ++------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ +| Selecting | `islice_extended `_, | +| | `first `_, | +| | `last `_, | +| | `one `_, | +| | `only `_, | +| | `strictly_n `_, | +| | `strip `_, | +| | `lstrip `_, | +| | `rstrip `_, | +| | `filter_except `_, | +| | `map_except `_, | +| | `filter_map `_, | +| | `iter_suppress `_, | +| | `nth_or_last `_, | +| | `unique_in_window `_, | +| | `before_and_after `_, | +| | `nth `_, | +| | `take `_, | +| | `tail `_, | +| | `unique_everseen `_, | +| | `unique_justseen `_, | +| | `unique `_, | +| | `duplicates_everseen `_, | +| | `duplicates_justseen `_, | +| | `classify_unique `_, | +| | `longest_common_prefix `_, | +| | `takewhile_inclusive `_ | ++------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ +| Math | `dft `_, | +| | `idft `_, | +| | `convolve `_, | +| | `dotproduct `_, | +| | `factor `_, | +| | `matmul `_, | +| | `polynomial_from_roots `_, | +| | `polynomial_derivative `_, | +| | `polynomial_eval `_, | +| | `sieve `_, | +| | `sum_of_squares `_, | +| | `totient `_ | ++------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ +| Combinatorics | `distinct_permutations `_, | +| | `distinct_combinations `_, | +| | `circular_shifts `_, | +| | `partitions `_, | +| | `set_partitions `_, | +| | `product_index `_, | +| | `combination_index `_, | +| | `permutation_index `_, | +| | `combination_with_replacement_index `_, | +| | `gray_product `_, | +| | `outer_product `_, | +| | `powerset `_, | +| | `powerset_of_sets `_, | +| | `random_product `_, | +| | `random_permutation `_, | +| | `random_combination `_, | +| | `random_combination_with_replacement `_, | +| | `nth_product `_, | +| | `nth_permutation `_, | +| | `nth_combination `_, | +| | `nth_combination_with_replacement `_ | ++------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ +| Wrapping | `always_iterable `_, | +| | `always_reversible `_, | +| | `countable `_, | +| | `consumer `_, | +| | `with_iter `_, | +| | `iter_except `_ | ++------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ +| Others | `locate `_, | +| | `rlocate `_, | +| | `replace `_, | +| | `numeric_range `_, | +| | `side_effect `_, | +| | `iterate `_, | +| | `difference `_, | +| | `make_decorator `_, | +| | `SequenceView `_, | +| | `time_limited `_, | +| | `map_if `_, | +| | `iter_index `_, | +| | `consume `_, | +| | `tabulate `_, | +| | `repeatfunc `_, | +| | `reshape `_ | +| | `doublestarmap `_ | ++------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ + + +Getting started +=============== + +To get started, install the library with `pip `_: + +.. code-block:: shell + + pip install more-itertools + +The recipes from the `itertools docs `_ +are included in the top-level package: + +.. code-block:: python + + >>> from more_itertools import flatten + >>> iterable = [(0, 1), (2, 3)] + >>> list(flatten(iterable)) + [0, 1, 2, 3] + +Several new recipes are available as well: + +.. code-block:: python + + >>> from more_itertools import chunked + >>> iterable = [0, 1, 2, 3, 4, 5, 6, 7, 8] + >>> list(chunked(iterable, 3)) + [[0, 1, 2], [3, 4, 5], [6, 7, 8]] + + >>> from more_itertools import spy + >>> iterable = (x * x for x in range(1, 6)) + >>> head, iterable = spy(iterable, n=3) + >>> list(head) + [1, 4, 9] + >>> list(iterable) + [1, 4, 9, 16, 25] + + + +For the full listing of functions, see the `API documentation `_. + + +Links elsewhere +=============== + +Blog posts about ``more-itertools``: + +* `Yo, I heard you like decorators `__ +* `Tour of Python Itertools `__ (`Alternate `__) +* `Real-World Python More Itertools `_ + + +Development +=========== + +``more-itertools`` is maintained by `@erikrose `_ +and `@bbayles `_, with help from `many others `_. +If you have a problem or suggestion, please file a bug or pull request in this +repository. Thanks for contributing! + + +Version History +=============== + +The version history can be found in `documentation `_. + diff --git a/setuptools/_vendor/more_itertools-10.3.0.dist-info/RECORD b/setuptools/_vendor/more_itertools-10.3.0.dist-info/RECORD new file mode 100644 index 0000000000..f15f3fcdc5 --- /dev/null +++ b/setuptools/_vendor/more_itertools-10.3.0.dist-info/RECORD @@ -0,0 +1,16 @@ +more_itertools-10.3.0.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4 +more_itertools-10.3.0.dist-info/LICENSE,sha256=CfHIyelBrz5YTVlkHqm4fYPAyw_QB-te85Gn4mQ8GkY,1053 +more_itertools-10.3.0.dist-info/METADATA,sha256=BFO90O-fLNiVQMpj7oIS5ztzgJUUQZ3TA32P5HH3N-A,36293 +more_itertools-10.3.0.dist-info/RECORD,, +more_itertools-10.3.0.dist-info/REQUESTED,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0 +more_itertools-10.3.0.dist-info/WHEEL,sha256=rSgq_JpHF9fHR1lx53qwg_1-2LypZE_qmcuXbVUq948,81 +more_itertools/__init__.py,sha256=dtAbGjTDmn_ghiU5YXfhyDy0phAlXVdt5klZA5fUa-Q,149 +more_itertools/__init__.pyi,sha256=5B3eTzON1BBuOLob1vCflyEb2lSd6usXQQ-Cv-hXkeA,43 +more_itertools/__pycache__/__init__.cpython-312.pyc,, +more_itertools/__pycache__/more.cpython-312.pyc,, +more_itertools/__pycache__/recipes.cpython-312.pyc,, +more_itertools/more.py,sha256=1E5kzFncRKTDw0cYv1yRXMgDdunstLQd1QStcnL6U90,148370 +more_itertools/more.pyi,sha256=iXXeqt48Nxe8VGmIWpkVXuKpR2FYNuu2DU8nQLWCCu0,21484 +more_itertools/py.typed,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0 +more_itertools/recipes.py,sha256=WedhhfhGVgr6zii8fIbGJVmRTw0ZKRiLKnYBDGJv4nY,28591 +more_itertools/recipes.pyi,sha256=T_mdGpcFdfrP3JSWbwzYP9JyNV-Go-7RPfpxfftAWlA,4617 diff --git a/setuptools/_vendor/more_itertools-10.3.0.dist-info/REQUESTED b/setuptools/_vendor/more_itertools-10.3.0.dist-info/REQUESTED new file mode 100644 index 0000000000..e69de29bb2 diff --git a/setuptools/_vendor/more_itertools-10.3.0.dist-info/WHEEL b/setuptools/_vendor/more_itertools-10.3.0.dist-info/WHEEL new file mode 100644 index 0000000000..db4a255f3a --- /dev/null +++ b/setuptools/_vendor/more_itertools-10.3.0.dist-info/WHEEL @@ -0,0 +1,4 @@ +Wheel-Version: 1.0 +Generator: flit 3.8.0 +Root-Is-Purelib: true +Tag: py3-none-any diff --git a/setuptools/_vendor/more_itertools/__init__.py b/setuptools/_vendor/more_itertools/__init__.py new file mode 100644 index 0000000000..9c4662fc31 --- /dev/null +++ b/setuptools/_vendor/more_itertools/__init__.py @@ -0,0 +1,6 @@ +"""More routines for operating on iterables, beyond itertools""" + +from .more import * # noqa +from .recipes import * # noqa + +__version__ = '10.3.0' diff --git a/setuptools/_vendor/more_itertools/__init__.pyi b/setuptools/_vendor/more_itertools/__init__.pyi new file mode 100644 index 0000000000..96f6e36c7f --- /dev/null +++ b/setuptools/_vendor/more_itertools/__init__.pyi @@ -0,0 +1,2 @@ +from .more import * +from .recipes import * diff --git a/setuptools/_vendor/more_itertools/more.py b/setuptools/_vendor/more_itertools/more.py new file mode 100755 index 0000000000..7b481907da --- /dev/null +++ b/setuptools/_vendor/more_itertools/more.py @@ -0,0 +1,4806 @@ +import math +import warnings + +from collections import Counter, defaultdict, deque, abc +from collections.abc import Sequence +from functools import cached_property, partial, reduce, wraps +from heapq import heapify, heapreplace, heappop +from itertools import ( + chain, + combinations, + compress, + count, + cycle, + dropwhile, + groupby, + islice, + repeat, + starmap, + takewhile, + tee, + zip_longest, + product, +) +from math import comb, e, exp, factorial, floor, fsum, log, perm, tau +from queue import Empty, Queue +from random import random, randrange, uniform +from operator import itemgetter, mul, sub, gt, lt, ge, le +from sys import hexversion, maxsize +from time import monotonic + +from .recipes import ( + _marker, + _zip_equal, + UnequalIterablesError, + consume, + flatten, + pairwise, + powerset, + take, + unique_everseen, + all_equal, + batched, +) + +__all__ = [ + 'AbortThread', + 'SequenceView', + 'UnequalIterablesError', + 'adjacent', + 'all_unique', + 'always_iterable', + 'always_reversible', + 'bucket', + 'callback_iter', + 'chunked', + 'chunked_even', + 'circular_shifts', + 'collapse', + 'combination_index', + 'combination_with_replacement_index', + 'consecutive_groups', + 'constrained_batches', + 'consumer', + 'count_cycle', + 'countable', + 'dft', + 'difference', + 'distinct_combinations', + 'distinct_permutations', + 'distribute', + 'divide', + 'doublestarmap', + 'duplicates_everseen', + 'duplicates_justseen', + 'classify_unique', + 'exactly_n', + 'filter_except', + 'filter_map', + 'first', + 'gray_product', + 'groupby_transform', + 'ichunked', + 'iequals', + 'idft', + 'ilen', + 'interleave', + 'interleave_evenly', + 'interleave_longest', + 'intersperse', + 'is_sorted', + 'islice_extended', + 'iterate', + 'iter_suppress', + 'join_mappings', + 'last', + 'locate', + 'longest_common_prefix', + 'lstrip', + 'make_decorator', + 'map_except', + 'map_if', + 'map_reduce', + 'mark_ends', + 'minmax', + 'nth_or_last', + 'nth_permutation', + 'nth_product', + 'nth_combination_with_replacement', + 'numeric_range', + 'one', + 'only', + 'outer_product', + 'padded', + 'partial_product', + 'partitions', + 'peekable', + 'permutation_index', + 'powerset_of_sets', + 'product_index', + 'raise_', + 'repeat_each', + 'repeat_last', + 'replace', + 'rlocate', + 'rstrip', + 'run_length', + 'sample', + 'seekable', + 'set_partitions', + 'side_effect', + 'sliced', + 'sort_together', + 'split_after', + 'split_at', + 'split_before', + 'split_into', + 'split_when', + 'spy', + 'stagger', + 'strip', + 'strictly_n', + 'substrings', + 'substrings_indexes', + 'takewhile_inclusive', + 'time_limited', + 'unique_in_window', + 'unique_to_each', + 'unzip', + 'value_chain', + 'windowed', + 'windowed_complete', + 'with_iter', + 'zip_broadcast', + 'zip_equal', + 'zip_offset', +] + +# math.sumprod is available for Python 3.12+ +_fsumprod = getattr(math, 'sumprod', lambda x, y: fsum(map(mul, x, y))) + + +def chunked(iterable, n, strict=False): + """Break *iterable* into lists of length *n*: + + >>> list(chunked([1, 2, 3, 4, 5, 6], 3)) + [[1, 2, 3], [4, 5, 6]] + + By the default, the last yielded list will have fewer than *n* elements + if the length of *iterable* is not divisible by *n*: + + >>> list(chunked([1, 2, 3, 4, 5, 6, 7, 8], 3)) + [[1, 2, 3], [4, 5, 6], [7, 8]] + + To use a fill-in value instead, see the :func:`grouper` recipe. + + If the length of *iterable* is not divisible by *n* and *strict* is + ``True``, then ``ValueError`` will be raised before the last + list is yielded. + + """ + iterator = iter(partial(take, n, iter(iterable)), []) + if strict: + if n is None: + raise ValueError('n must not be None when using strict mode.') + + def ret(): + for chunk in iterator: + if len(chunk) != n: + raise ValueError('iterable is not divisible by n.') + yield chunk + + return iter(ret()) + else: + return iterator + + +def first(iterable, default=_marker): + """Return the first item of *iterable*, or *default* if *iterable* is + empty. + + >>> first([0, 1, 2, 3]) + 0 + >>> first([], 'some default') + 'some default' + + If *default* is not provided and there are no items in the iterable, + raise ``ValueError``. + + :func:`first` is useful when you have a generator of expensive-to-retrieve + values and want any arbitrary one. It is marginally shorter than + ``next(iter(iterable), default)``. + + """ + for item in iterable: + return item + if default is _marker: + raise ValueError( + 'first() was called on an empty iterable, and no ' + 'default value was provided.' + ) + return default + + +def last(iterable, default=_marker): + """Return the last item of *iterable*, or *default* if *iterable* is + empty. + + >>> last([0, 1, 2, 3]) + 3 + >>> last([], 'some default') + 'some default' + + If *default* is not provided and there are no items in the iterable, + raise ``ValueError``. + """ + try: + if isinstance(iterable, Sequence): + return iterable[-1] + # Work around https://bugs.python.org/issue38525 + elif hasattr(iterable, '__reversed__') and (hexversion != 0x030800F0): + return next(reversed(iterable)) + else: + return deque(iterable, maxlen=1)[-1] + except (IndexError, TypeError, StopIteration): + if default is _marker: + raise ValueError( + 'last() was called on an empty iterable, and no default was ' + 'provided.' + ) + return default + + +def nth_or_last(iterable, n, default=_marker): + """Return the nth or the last item of *iterable*, + or *default* if *iterable* is empty. + + >>> nth_or_last([0, 1, 2, 3], 2) + 2 + >>> nth_or_last([0, 1], 2) + 1 + >>> nth_or_last([], 0, 'some default') + 'some default' + + If *default* is not provided and there are no items in the iterable, + raise ``ValueError``. + """ + return last(islice(iterable, n + 1), default=default) + + +class peekable: + """Wrap an iterator to allow lookahead and prepending elements. + + Call :meth:`peek` on the result to get the value that will be returned + by :func:`next`. This won't advance the iterator: + + >>> p = peekable(['a', 'b']) + >>> p.peek() + 'a' + >>> next(p) + 'a' + + Pass :meth:`peek` a default value to return that instead of raising + ``StopIteration`` when the iterator is exhausted. + + >>> p = peekable([]) + >>> p.peek('hi') + 'hi' + + peekables also offer a :meth:`prepend` method, which "inserts" items + at the head of the iterable: + + >>> p = peekable([1, 2, 3]) + >>> p.prepend(10, 11, 12) + >>> next(p) + 10 + >>> p.peek() + 11 + >>> list(p) + [11, 12, 1, 2, 3] + + peekables can be indexed. Index 0 is the item that will be returned by + :func:`next`, index 1 is the item after that, and so on: + The values up to the given index will be cached. + + >>> p = peekable(['a', 'b', 'c', 'd']) + >>> p[0] + 'a' + >>> p[1] + 'b' + >>> next(p) + 'a' + + Negative indexes are supported, but be aware that they will cache the + remaining items in the source iterator, which may require significant + storage. + + To check whether a peekable is exhausted, check its truth value: + + >>> p = peekable(['a', 'b']) + >>> if p: # peekable has items + ... list(p) + ['a', 'b'] + >>> if not p: # peekable is exhausted + ... list(p) + [] + + """ + + def __init__(self, iterable): + self._it = iter(iterable) + self._cache = deque() + + def __iter__(self): + return self + + def __bool__(self): + try: + self.peek() + except StopIteration: + return False + return True + + def peek(self, default=_marker): + """Return the item that will be next returned from ``next()``. + + Return ``default`` if there are no items left. If ``default`` is not + provided, raise ``StopIteration``. + + """ + if not self._cache: + try: + self._cache.append(next(self._it)) + except StopIteration: + if default is _marker: + raise + return default + return self._cache[0] + + def prepend(self, *items): + """Stack up items to be the next ones returned from ``next()`` or + ``self.peek()``. The items will be returned in + first in, first out order:: + + >>> p = peekable([1, 2, 3]) + >>> p.prepend(10, 11, 12) + >>> next(p) + 10 + >>> list(p) + [11, 12, 1, 2, 3] + + It is possible, by prepending items, to "resurrect" a peekable that + previously raised ``StopIteration``. + + >>> p = peekable([]) + >>> next(p) + Traceback (most recent call last): + ... + StopIteration + >>> p.prepend(1) + >>> next(p) + 1 + >>> next(p) + Traceback (most recent call last): + ... + StopIteration + + """ + self._cache.extendleft(reversed(items)) + + def __next__(self): + if self._cache: + return self._cache.popleft() + + return next(self._it) + + def _get_slice(self, index): + # Normalize the slice's arguments + step = 1 if (index.step is None) else index.step + if step > 0: + start = 0 if (index.start is None) else index.start + stop = maxsize if (index.stop is None) else index.stop + elif step < 0: + start = -1 if (index.start is None) else index.start + stop = (-maxsize - 1) if (index.stop is None) else index.stop + else: + raise ValueError('slice step cannot be zero') + + # If either the start or stop index is negative, we'll need to cache + # the rest of the iterable in order to slice from the right side. + if (start < 0) or (stop < 0): + self._cache.extend(self._it) + # Otherwise we'll need to find the rightmost index and cache to that + # point. + else: + n = min(max(start, stop) + 1, maxsize) + cache_len = len(self._cache) + if n >= cache_len: + self._cache.extend(islice(self._it, n - cache_len)) + + return list(self._cache)[index] + + def __getitem__(self, index): + if isinstance(index, slice): + return self._get_slice(index) + + cache_len = len(self._cache) + if index < 0: + self._cache.extend(self._it) + elif index >= cache_len: + self._cache.extend(islice(self._it, index + 1 - cache_len)) + + return self._cache[index] + + +def consumer(func): + """Decorator that automatically advances a PEP-342-style "reverse iterator" + to its first yield point so you don't have to call ``next()`` on it + manually. + + >>> @consumer + ... def tally(): + ... i = 0 + ... while True: + ... print('Thing number %s is %s.' % (i, (yield))) + ... i += 1 + ... + >>> t = tally() + >>> t.send('red') + Thing number 0 is red. + >>> t.send('fish') + Thing number 1 is fish. + + Without the decorator, you would have to call ``next(t)`` before + ``t.send()`` could be used. + + """ + + @wraps(func) + def wrapper(*args, **kwargs): + gen = func(*args, **kwargs) + next(gen) + return gen + + return wrapper + + +def ilen(iterable): + """Return the number of items in *iterable*. + + >>> ilen(x for x in range(1000000) if x % 3 == 0) + 333334 + + This consumes the iterable, so handle with care. + + """ + # This approach was selected because benchmarks showed it's likely the + # fastest of the known implementations at the time of writing. + # See GitHub tracker: #236, #230. + counter = count() + deque(zip(iterable, counter), maxlen=0) + return next(counter) + + +def iterate(func, start): + """Return ``start``, ``func(start)``, ``func(func(start))``, ... + + >>> from itertools import islice + >>> list(islice(iterate(lambda x: 2*x, 1), 10)) + [1, 2, 4, 8, 16, 32, 64, 128, 256, 512] + + """ + while True: + yield start + try: + start = func(start) + except StopIteration: + break + + +def with_iter(context_manager): + """Wrap an iterable in a ``with`` statement, so it closes once exhausted. + + For example, this will close the file when the iterator is exhausted:: + + upper_lines = (line.upper() for line in with_iter(open('foo'))) + + Any context manager which returns an iterable is a candidate for + ``with_iter``. + + """ + with context_manager as iterable: + yield from iterable + + +def one(iterable, too_short=None, too_long=None): + """Return the first item from *iterable*, which is expected to contain only + that item. Raise an exception if *iterable* is empty or has more than one + item. + + :func:`one` is useful for ensuring that an iterable contains only one item. + For example, it can be used to retrieve the result of a database query + that is expected to return a single row. + + If *iterable* is empty, ``ValueError`` will be raised. You may specify a + different exception with the *too_short* keyword: + + >>> it = [] + >>> one(it) # doctest: +IGNORE_EXCEPTION_DETAIL + Traceback (most recent call last): + ... + ValueError: too many items in iterable (expected 1)' + >>> too_short = IndexError('too few items') + >>> one(it, too_short=too_short) # doctest: +IGNORE_EXCEPTION_DETAIL + Traceback (most recent call last): + ... + IndexError: too few items + + Similarly, if *iterable* contains more than one item, ``ValueError`` will + be raised. You may specify a different exception with the *too_long* + keyword: + + >>> it = ['too', 'many'] + >>> one(it) # doctest: +IGNORE_EXCEPTION_DETAIL + Traceback (most recent call last): + ... + ValueError: Expected exactly one item in iterable, but got 'too', + 'many', and perhaps more. + >>> too_long = RuntimeError + >>> one(it, too_long=too_long) # doctest: +IGNORE_EXCEPTION_DETAIL + Traceback (most recent call last): + ... + RuntimeError + + Note that :func:`one` attempts to advance *iterable* twice to ensure there + is only one item. See :func:`spy` or :func:`peekable` to check iterable + contents less destructively. + + """ + it = iter(iterable) + + try: + first_value = next(it) + except StopIteration as exc: + raise ( + too_short or ValueError('too few items in iterable (expected 1)') + ) from exc + + try: + second_value = next(it) + except StopIteration: + pass + else: + msg = ( + 'Expected exactly one item in iterable, but got {!r}, {!r}, ' + 'and perhaps more.'.format(first_value, second_value) + ) + raise too_long or ValueError(msg) + + return first_value + + +def raise_(exception, *args): + raise exception(*args) + + +def strictly_n(iterable, n, too_short=None, too_long=None): + """Validate that *iterable* has exactly *n* items and return them if + it does. If it has fewer than *n* items, call function *too_short* + with those items. If it has more than *n* items, call function + *too_long* with the first ``n + 1`` items. + + >>> iterable = ['a', 'b', 'c', 'd'] + >>> n = 4 + >>> list(strictly_n(iterable, n)) + ['a', 'b', 'c', 'd'] + + Note that the returned iterable must be consumed in order for the check to + be made. + + By default, *too_short* and *too_long* are functions that raise + ``ValueError``. + + >>> list(strictly_n('ab', 3)) # doctest: +IGNORE_EXCEPTION_DETAIL + Traceback (most recent call last): + ... + ValueError: too few items in iterable (got 2) + + >>> list(strictly_n('abc', 2)) # doctest: +IGNORE_EXCEPTION_DETAIL + Traceback (most recent call last): + ... + ValueError: too many items in iterable (got at least 3) + + You can instead supply functions that do something else. + *too_short* will be called with the number of items in *iterable*. + *too_long* will be called with `n + 1`. + + >>> def too_short(item_count): + ... raise RuntimeError + >>> it = strictly_n('abcd', 6, too_short=too_short) + >>> list(it) # doctest: +IGNORE_EXCEPTION_DETAIL + Traceback (most recent call last): + ... + RuntimeError + + >>> def too_long(item_count): + ... print('The boss is going to hear about this') + >>> it = strictly_n('abcdef', 4, too_long=too_long) + >>> list(it) + The boss is going to hear about this + ['a', 'b', 'c', 'd'] + + """ + if too_short is None: + too_short = lambda item_count: raise_( + ValueError, + 'Too few items in iterable (got {})'.format(item_count), + ) + + if too_long is None: + too_long = lambda item_count: raise_( + ValueError, + 'Too many items in iterable (got at least {})'.format(item_count), + ) + + it = iter(iterable) + for i in range(n): + try: + item = next(it) + except StopIteration: + too_short(i) + return + else: + yield item + + try: + next(it) + except StopIteration: + pass + else: + too_long(n + 1) + + +def distinct_permutations(iterable, r=None): + """Yield successive distinct permutations of the elements in *iterable*. + + >>> sorted(distinct_permutations([1, 0, 1])) + [(0, 1, 1), (1, 0, 1), (1, 1, 0)] + + Equivalent to ``set(permutations(iterable))``, except duplicates are not + generated and thrown away. For larger input sequences this is much more + efficient. + + Duplicate permutations arise when there are duplicated elements in the + input iterable. The number of items returned is + `n! / (x_1! * x_2! * ... * x_n!)`, where `n` is the total number of + items input, and each `x_i` is the count of a distinct item in the input + sequence. + + If *r* is given, only the *r*-length permutations are yielded. + + >>> sorted(distinct_permutations([1, 0, 1], r=2)) + [(0, 1), (1, 0), (1, 1)] + >>> sorted(distinct_permutations(range(3), r=2)) + [(0, 1), (0, 2), (1, 0), (1, 2), (2, 0), (2, 1)] + + """ + + # Algorithm: https://w.wiki/Qai + def _full(A): + while True: + # Yield the permutation we have + yield tuple(A) + + # Find the largest index i such that A[i] < A[i + 1] + for i in range(size - 2, -1, -1): + if A[i] < A[i + 1]: + break + # If no such index exists, this permutation is the last one + else: + return + + # Find the largest index j greater than j such that A[i] < A[j] + for j in range(size - 1, i, -1): + if A[i] < A[j]: + break + + # Swap the value of A[i] with that of A[j], then reverse the + # sequence from A[i + 1] to form the new permutation + A[i], A[j] = A[j], A[i] + A[i + 1 :] = A[: i - size : -1] # A[i + 1:][::-1] + + # Algorithm: modified from the above + def _partial(A, r): + # Split A into the first r items and the last r items + head, tail = A[:r], A[r:] + right_head_indexes = range(r - 1, -1, -1) + left_tail_indexes = range(len(tail)) + + while True: + # Yield the permutation we have + yield tuple(head) + + # Starting from the right, find the first index of the head with + # value smaller than the maximum value of the tail - call it i. + pivot = tail[-1] + for i in right_head_indexes: + if head[i] < pivot: + break + pivot = head[i] + else: + return + + # Starting from the left, find the first value of the tail + # with a value greater than head[i] and swap. + for j in left_tail_indexes: + if tail[j] > head[i]: + head[i], tail[j] = tail[j], head[i] + break + # If we didn't find one, start from the right and find the first + # index of the head with a value greater than head[i] and swap. + else: + for j in right_head_indexes: + if head[j] > head[i]: + head[i], head[j] = head[j], head[i] + break + + # Reverse head[i + 1:] and swap it with tail[:r - (i + 1)] + tail += head[: i - r : -1] # head[i + 1:][::-1] + i += 1 + head[i:], tail[:] = tail[: r - i], tail[r - i :] + + items = sorted(iterable) + + size = len(items) + if r is None: + r = size + + if 0 < r <= size: + return _full(items) if (r == size) else _partial(items, r) + + return iter(() if r else ((),)) + + +def intersperse(e, iterable, n=1): + """Intersperse filler element *e* among the items in *iterable*, leaving + *n* items between each filler element. + + >>> list(intersperse('!', [1, 2, 3, 4, 5])) + [1, '!', 2, '!', 3, '!', 4, '!', 5] + + >>> list(intersperse(None, [1, 2, 3, 4, 5], n=2)) + [1, 2, None, 3, 4, None, 5] + + """ + if n == 0: + raise ValueError('n must be > 0') + elif n == 1: + # interleave(repeat(e), iterable) -> e, x_0, e, x_1, e, x_2... + # islice(..., 1, None) -> x_0, e, x_1, e, x_2... + return islice(interleave(repeat(e), iterable), 1, None) + else: + # interleave(filler, chunks) -> [e], [x_0, x_1], [e], [x_2, x_3]... + # islice(..., 1, None) -> [x_0, x_1], [e], [x_2, x_3]... + # flatten(...) -> x_0, x_1, e, x_2, x_3... + filler = repeat([e]) + chunks = chunked(iterable, n) + return flatten(islice(interleave(filler, chunks), 1, None)) + + +def unique_to_each(*iterables): + """Return the elements from each of the input iterables that aren't in the + other input iterables. + + For example, suppose you have a set of packages, each with a set of + dependencies:: + + {'pkg_1': {'A', 'B'}, 'pkg_2': {'B', 'C'}, 'pkg_3': {'B', 'D'}} + + If you remove one package, which dependencies can also be removed? + + If ``pkg_1`` is removed, then ``A`` is no longer necessary - it is not + associated with ``pkg_2`` or ``pkg_3``. Similarly, ``C`` is only needed for + ``pkg_2``, and ``D`` is only needed for ``pkg_3``:: + + >>> unique_to_each({'A', 'B'}, {'B', 'C'}, {'B', 'D'}) + [['A'], ['C'], ['D']] + + If there are duplicates in one input iterable that aren't in the others + they will be duplicated in the output. Input order is preserved:: + + >>> unique_to_each("mississippi", "missouri") + [['p', 'p'], ['o', 'u', 'r']] + + It is assumed that the elements of each iterable are hashable. + + """ + pool = [list(it) for it in iterables] + counts = Counter(chain.from_iterable(map(set, pool))) + uniques = {element for element in counts if counts[element] == 1} + return [list(filter(uniques.__contains__, it)) for it in pool] + + +def windowed(seq, n, fillvalue=None, step=1): + """Return a sliding window of width *n* over the given iterable. + + >>> all_windows = windowed([1, 2, 3, 4, 5], 3) + >>> list(all_windows) + [(1, 2, 3), (2, 3, 4), (3, 4, 5)] + + When the window is larger than the iterable, *fillvalue* is used in place + of missing values: + + >>> list(windowed([1, 2, 3], 4)) + [(1, 2, 3, None)] + + Each window will advance in increments of *step*: + + >>> list(windowed([1, 2, 3, 4, 5, 6], 3, fillvalue='!', step=2)) + [(1, 2, 3), (3, 4, 5), (5, 6, '!')] + + To slide into the iterable's items, use :func:`chain` to add filler items + to the left: + + >>> iterable = [1, 2, 3, 4] + >>> n = 3 + >>> padding = [None] * (n - 1) + >>> list(windowed(chain(padding, iterable), 3)) + [(None, None, 1), (None, 1, 2), (1, 2, 3), (2, 3, 4)] + """ + if n < 0: + raise ValueError('n must be >= 0') + if n == 0: + yield () + return + if step < 1: + raise ValueError('step must be >= 1') + + iterable = iter(seq) + + # Generate first window + window = deque(islice(iterable, n), maxlen=n) + + # Deal with the first window not being full + if not window: + return + if len(window) < n: + yield tuple(window) + ((fillvalue,) * (n - len(window))) + return + yield tuple(window) + + # Create the filler for the next windows. The padding ensures + # we have just enough elements to fill the last window. + padding = (fillvalue,) * (n - 1 if step >= n else step - 1) + filler = map(window.append, chain(iterable, padding)) + + # Generate the rest of the windows + for _ in islice(filler, step - 1, None, step): + yield tuple(window) + + +def substrings(iterable): + """Yield all of the substrings of *iterable*. + + >>> [''.join(s) for s in substrings('more')] + ['m', 'o', 'r', 'e', 'mo', 'or', 're', 'mor', 'ore', 'more'] + + Note that non-string iterables can also be subdivided. + + >>> list(substrings([0, 1, 2])) + [(0,), (1,), (2,), (0, 1), (1, 2), (0, 1, 2)] + + """ + # The length-1 substrings + seq = [] + for item in iter(iterable): + seq.append(item) + yield (item,) + seq = tuple(seq) + item_count = len(seq) + + # And the rest + for n in range(2, item_count + 1): + for i in range(item_count - n + 1): + yield seq[i : i + n] + + +def substrings_indexes(seq, reverse=False): + """Yield all substrings and their positions in *seq* + + The items yielded will be a tuple of the form ``(substr, i, j)``, where + ``substr == seq[i:j]``. + + This function only works for iterables that support slicing, such as + ``str`` objects. + + >>> for item in substrings_indexes('more'): + ... print(item) + ('m', 0, 1) + ('o', 1, 2) + ('r', 2, 3) + ('e', 3, 4) + ('mo', 0, 2) + ('or', 1, 3) + ('re', 2, 4) + ('mor', 0, 3) + ('ore', 1, 4) + ('more', 0, 4) + + Set *reverse* to ``True`` to yield the same items in the opposite order. + + + """ + r = range(1, len(seq) + 1) + if reverse: + r = reversed(r) + return ( + (seq[i : i + L], i, i + L) for L in r for i in range(len(seq) - L + 1) + ) + + +class bucket: + """Wrap *iterable* and return an object that buckets the iterable into + child iterables based on a *key* function. + + >>> iterable = ['a1', 'b1', 'c1', 'a2', 'b2', 'c2', 'b3'] + >>> s = bucket(iterable, key=lambda x: x[0]) # Bucket by 1st character + >>> sorted(list(s)) # Get the keys + ['a', 'b', 'c'] + >>> a_iterable = s['a'] + >>> next(a_iterable) + 'a1' + >>> next(a_iterable) + 'a2' + >>> list(s['b']) + ['b1', 'b2', 'b3'] + + The original iterable will be advanced and its items will be cached until + they are used by the child iterables. This may require significant storage. + + By default, attempting to select a bucket to which no items belong will + exhaust the iterable and cache all values. + If you specify a *validator* function, selected buckets will instead be + checked against it. + + >>> from itertools import count + >>> it = count(1, 2) # Infinite sequence of odd numbers + >>> key = lambda x: x % 10 # Bucket by last digit + >>> validator = lambda x: x in {1, 3, 5, 7, 9} # Odd digits only + >>> s = bucket(it, key=key, validator=validator) + >>> 2 in s + False + >>> list(s[2]) + [] + + """ + + def __init__(self, iterable, key, validator=None): + self._it = iter(iterable) + self._key = key + self._cache = defaultdict(deque) + self._validator = validator or (lambda x: True) + + def __contains__(self, value): + if not self._validator(value): + return False + + try: + item = next(self[value]) + except StopIteration: + return False + else: + self._cache[value].appendleft(item) + + return True + + def _get_values(self, value): + """ + Helper to yield items from the parent iterator that match *value*. + Items that don't match are stored in the local cache as they + are encountered. + """ + while True: + # If we've cached some items that match the target value, emit + # the first one and evict it from the cache. + if self._cache[value]: + yield self._cache[value].popleft() + # Otherwise we need to advance the parent iterator to search for + # a matching item, caching the rest. + else: + while True: + try: + item = next(self._it) + except StopIteration: + return + item_value = self._key(item) + if item_value == value: + yield item + break + elif self._validator(item_value): + self._cache[item_value].append(item) + + def __iter__(self): + for item in self._it: + item_value = self._key(item) + if self._validator(item_value): + self._cache[item_value].append(item) + + yield from self._cache.keys() + + def __getitem__(self, value): + if not self._validator(value): + return iter(()) + + return self._get_values(value) + + +def spy(iterable, n=1): + """Return a 2-tuple with a list containing the first *n* elements of + *iterable*, and an iterator with the same items as *iterable*. + This allows you to "look ahead" at the items in the iterable without + advancing it. + + There is one item in the list by default: + + >>> iterable = 'abcdefg' + >>> head, iterable = spy(iterable) + >>> head + ['a'] + >>> list(iterable) + ['a', 'b', 'c', 'd', 'e', 'f', 'g'] + + You may use unpacking to retrieve items instead of lists: + + >>> (head,), iterable = spy('abcdefg') + >>> head + 'a' + >>> (first, second), iterable = spy('abcdefg', 2) + >>> first + 'a' + >>> second + 'b' + + The number of items requested can be larger than the number of items in + the iterable: + + >>> iterable = [1, 2, 3, 4, 5] + >>> head, iterable = spy(iterable, 10) + >>> head + [1, 2, 3, 4, 5] + >>> list(iterable) + [1, 2, 3, 4, 5] + + """ + it = iter(iterable) + head = take(n, it) + + return head.copy(), chain(head, it) + + +def interleave(*iterables): + """Return a new iterable yielding from each iterable in turn, + until the shortest is exhausted. + + >>> list(interleave([1, 2, 3], [4, 5], [6, 7, 8])) + [1, 4, 6, 2, 5, 7] + + For a version that doesn't terminate after the shortest iterable is + exhausted, see :func:`interleave_longest`. + + """ + return chain.from_iterable(zip(*iterables)) + + +def interleave_longest(*iterables): + """Return a new iterable yielding from each iterable in turn, + skipping any that are exhausted. + + >>> list(interleave_longest([1, 2, 3], [4, 5], [6, 7, 8])) + [1, 4, 6, 2, 5, 7, 3, 8] + + This function produces the same output as :func:`roundrobin`, but may + perform better for some inputs (in particular when the number of iterables + is large). + + """ + i = chain.from_iterable(zip_longest(*iterables, fillvalue=_marker)) + return (x for x in i if x is not _marker) + + +def interleave_evenly(iterables, lengths=None): + """ + Interleave multiple iterables so that their elements are evenly distributed + throughout the output sequence. + + >>> iterables = [1, 2, 3, 4, 5], ['a', 'b'] + >>> list(interleave_evenly(iterables)) + [1, 2, 'a', 3, 4, 'b', 5] + + >>> iterables = [[1, 2, 3], [4, 5], [6, 7, 8]] + >>> list(interleave_evenly(iterables)) + [1, 6, 4, 2, 7, 3, 8, 5] + + This function requires iterables of known length. Iterables without + ``__len__()`` can be used by manually specifying lengths with *lengths*: + + >>> from itertools import combinations, repeat + >>> iterables = [combinations(range(4), 2), ['a', 'b', 'c']] + >>> lengths = [4 * (4 - 1) // 2, 3] + >>> list(interleave_evenly(iterables, lengths=lengths)) + [(0, 1), (0, 2), 'a', (0, 3), (1, 2), 'b', (1, 3), (2, 3), 'c'] + + Based on Bresenham's algorithm. + """ + if lengths is None: + try: + lengths = [len(it) for it in iterables] + except TypeError: + raise ValueError( + 'Iterable lengths could not be determined automatically. ' + 'Specify them with the lengths keyword.' + ) + elif len(iterables) != len(lengths): + raise ValueError('Mismatching number of iterables and lengths.') + + dims = len(lengths) + + # sort iterables by length, descending + lengths_permute = sorted( + range(dims), key=lambda i: lengths[i], reverse=True + ) + lengths_desc = [lengths[i] for i in lengths_permute] + iters_desc = [iter(iterables[i]) for i in lengths_permute] + + # the longest iterable is the primary one (Bresenham: the longest + # distance along an axis) + delta_primary, deltas_secondary = lengths_desc[0], lengths_desc[1:] + iter_primary, iters_secondary = iters_desc[0], iters_desc[1:] + errors = [delta_primary // dims] * len(deltas_secondary) + + to_yield = sum(lengths) + while to_yield: + yield next(iter_primary) + to_yield -= 1 + # update errors for each secondary iterable + errors = [e - delta for e, delta in zip(errors, deltas_secondary)] + + # those iterables for which the error is negative are yielded + # ("diagonal step" in Bresenham) + for i, e_ in enumerate(errors): + if e_ < 0: + yield next(iters_secondary[i]) + to_yield -= 1 + errors[i] += delta_primary + + +def collapse(iterable, base_type=None, levels=None): + """Flatten an iterable with multiple levels of nesting (e.g., a list of + lists of tuples) into non-iterable types. + + >>> iterable = [(1, 2), ([3, 4], [[5], [6]])] + >>> list(collapse(iterable)) + [1, 2, 3, 4, 5, 6] + + Binary and text strings are not considered iterable and + will not be collapsed. + + To avoid collapsing other types, specify *base_type*: + + >>> iterable = ['ab', ('cd', 'ef'), ['gh', 'ij']] + >>> list(collapse(iterable, base_type=tuple)) + ['ab', ('cd', 'ef'), 'gh', 'ij'] + + Specify *levels* to stop flattening after a certain level: + + >>> iterable = [('a', ['b']), ('c', ['d'])] + >>> list(collapse(iterable)) # Fully flattened + ['a', 'b', 'c', 'd'] + >>> list(collapse(iterable, levels=1)) # Only one level flattened + ['a', ['b'], 'c', ['d']] + + """ + stack = deque() + # Add our first node group, treat the iterable as a single node + stack.appendleft((0, repeat(iterable, 1))) + + while stack: + node_group = stack.popleft() + level, nodes = node_group + + # Check if beyond max level + if levels is not None and level > levels: + yield from nodes + continue + + for node in nodes: + # Check if done iterating + if isinstance(node, (str, bytes)) or ( + (base_type is not None) and isinstance(node, base_type) + ): + yield node + # Otherwise try to create child nodes + else: + try: + tree = iter(node) + except TypeError: + yield node + else: + # Save our current location + stack.appendleft(node_group) + # Append the new child node + stack.appendleft((level + 1, tree)) + # Break to process child node + break + + +def side_effect(func, iterable, chunk_size=None, before=None, after=None): + """Invoke *func* on each item in *iterable* (or on each *chunk_size* group + of items) before yielding the item. + + `func` must be a function that takes a single argument. Its return value + will be discarded. + + *before* and *after* are optional functions that take no arguments. They + will be executed before iteration starts and after it ends, respectively. + + `side_effect` can be used for logging, updating progress bars, or anything + that is not functionally "pure." + + Emitting a status message: + + >>> from more_itertools import consume + >>> func = lambda item: print('Received {}'.format(item)) + >>> consume(side_effect(func, range(2))) + Received 0 + Received 1 + + Operating on chunks of items: + + >>> pair_sums = [] + >>> func = lambda chunk: pair_sums.append(sum(chunk)) + >>> list(side_effect(func, [0, 1, 2, 3, 4, 5], 2)) + [0, 1, 2, 3, 4, 5] + >>> list(pair_sums) + [1, 5, 9] + + Writing to a file-like object: + + >>> from io import StringIO + >>> from more_itertools import consume + >>> f = StringIO() + >>> func = lambda x: print(x, file=f) + >>> before = lambda: print(u'HEADER', file=f) + >>> after = f.close + >>> it = [u'a', u'b', u'c'] + >>> consume(side_effect(func, it, before=before, after=after)) + >>> f.closed + True + + """ + try: + if before is not None: + before() + + if chunk_size is None: + for item in iterable: + func(item) + yield item + else: + for chunk in chunked(iterable, chunk_size): + func(chunk) + yield from chunk + finally: + if after is not None: + after() + + +def sliced(seq, n, strict=False): + """Yield slices of length *n* from the sequence *seq*. + + >>> list(sliced((1, 2, 3, 4, 5, 6), 3)) + [(1, 2, 3), (4, 5, 6)] + + By the default, the last yielded slice will have fewer than *n* elements + if the length of *seq* is not divisible by *n*: + + >>> list(sliced((1, 2, 3, 4, 5, 6, 7, 8), 3)) + [(1, 2, 3), (4, 5, 6), (7, 8)] + + If the length of *seq* is not divisible by *n* and *strict* is + ``True``, then ``ValueError`` will be raised before the last + slice is yielded. + + This function will only work for iterables that support slicing. + For non-sliceable iterables, see :func:`chunked`. + + """ + iterator = takewhile(len, (seq[i : i + n] for i in count(0, n))) + if strict: + + def ret(): + for _slice in iterator: + if len(_slice) != n: + raise ValueError("seq is not divisible by n.") + yield _slice + + return iter(ret()) + else: + return iterator + + +def split_at(iterable, pred, maxsplit=-1, keep_separator=False): + """Yield lists of items from *iterable*, where each list is delimited by + an item where callable *pred* returns ``True``. + + >>> list(split_at('abcdcba', lambda x: x == 'b')) + [['a'], ['c', 'd', 'c'], ['a']] + + >>> list(split_at(range(10), lambda n: n % 2 == 1)) + [[0], [2], [4], [6], [8], []] + + At most *maxsplit* splits are done. If *maxsplit* is not specified or -1, + then there is no limit on the number of splits: + + >>> list(split_at(range(10), lambda n: n % 2 == 1, maxsplit=2)) + [[0], [2], [4, 5, 6, 7, 8, 9]] + + By default, the delimiting items are not included in the output. + To include them, set *keep_separator* to ``True``. + + >>> list(split_at('abcdcba', lambda x: x == 'b', keep_separator=True)) + [['a'], ['b'], ['c', 'd', 'c'], ['b'], ['a']] + + """ + if maxsplit == 0: + yield list(iterable) + return + + buf = [] + it = iter(iterable) + for item in it: + if pred(item): + yield buf + if keep_separator: + yield [item] + if maxsplit == 1: + yield list(it) + return + buf = [] + maxsplit -= 1 + else: + buf.append(item) + yield buf + + +def split_before(iterable, pred, maxsplit=-1): + """Yield lists of items from *iterable*, where each list ends just before + an item for which callable *pred* returns ``True``: + + >>> list(split_before('OneTwo', lambda s: s.isupper())) + [['O', 'n', 'e'], ['T', 'w', 'o']] + + >>> list(split_before(range(10), lambda n: n % 3 == 0)) + [[0, 1, 2], [3, 4, 5], [6, 7, 8], [9]] + + At most *maxsplit* splits are done. If *maxsplit* is not specified or -1, + then there is no limit on the number of splits: + + >>> list(split_before(range(10), lambda n: n % 3 == 0, maxsplit=2)) + [[0, 1, 2], [3, 4, 5], [6, 7, 8, 9]] + """ + if maxsplit == 0: + yield list(iterable) + return + + buf = [] + it = iter(iterable) + for item in it: + if pred(item) and buf: + yield buf + if maxsplit == 1: + yield [item] + list(it) + return + buf = [] + maxsplit -= 1 + buf.append(item) + if buf: + yield buf + + +def split_after(iterable, pred, maxsplit=-1): + """Yield lists of items from *iterable*, where each list ends with an + item where callable *pred* returns ``True``: + + >>> list(split_after('one1two2', lambda s: s.isdigit())) + [['o', 'n', 'e', '1'], ['t', 'w', 'o', '2']] + + >>> list(split_after(range(10), lambda n: n % 3 == 0)) + [[0], [1, 2, 3], [4, 5, 6], [7, 8, 9]] + + At most *maxsplit* splits are done. If *maxsplit* is not specified or -1, + then there is no limit on the number of splits: + + >>> list(split_after(range(10), lambda n: n % 3 == 0, maxsplit=2)) + [[0], [1, 2, 3], [4, 5, 6, 7, 8, 9]] + + """ + if maxsplit == 0: + yield list(iterable) + return + + buf = [] + it = iter(iterable) + for item in it: + buf.append(item) + if pred(item) and buf: + yield buf + if maxsplit == 1: + buf = list(it) + if buf: + yield buf + return + buf = [] + maxsplit -= 1 + if buf: + yield buf + + +def split_when(iterable, pred, maxsplit=-1): + """Split *iterable* into pieces based on the output of *pred*. + *pred* should be a function that takes successive pairs of items and + returns ``True`` if the iterable should be split in between them. + + For example, to find runs of increasing numbers, split the iterable when + element ``i`` is larger than element ``i + 1``: + + >>> list(split_when([1, 2, 3, 3, 2, 5, 2, 4, 2], lambda x, y: x > y)) + [[1, 2, 3, 3], [2, 5], [2, 4], [2]] + + At most *maxsplit* splits are done. If *maxsplit* is not specified or -1, + then there is no limit on the number of splits: + + >>> list(split_when([1, 2, 3, 3, 2, 5, 2, 4, 2], + ... lambda x, y: x > y, maxsplit=2)) + [[1, 2, 3, 3], [2, 5], [2, 4, 2]] + + """ + if maxsplit == 0: + yield list(iterable) + return + + it = iter(iterable) + try: + cur_item = next(it) + except StopIteration: + return + + buf = [cur_item] + for next_item in it: + if pred(cur_item, next_item): + yield buf + if maxsplit == 1: + yield [next_item] + list(it) + return + buf = [] + maxsplit -= 1 + + buf.append(next_item) + cur_item = next_item + + yield buf + + +def split_into(iterable, sizes): + """Yield a list of sequential items from *iterable* of length 'n' for each + integer 'n' in *sizes*. + + >>> list(split_into([1,2,3,4,5,6], [1,2,3])) + [[1], [2, 3], [4, 5, 6]] + + If the sum of *sizes* is smaller than the length of *iterable*, then the + remaining items of *iterable* will not be returned. + + >>> list(split_into([1,2,3,4,5,6], [2,3])) + [[1, 2], [3, 4, 5]] + + If the sum of *sizes* is larger than the length of *iterable*, fewer items + will be returned in the iteration that overruns *iterable* and further + lists will be empty: + + >>> list(split_into([1,2,3,4], [1,2,3,4])) + [[1], [2, 3], [4], []] + + When a ``None`` object is encountered in *sizes*, the returned list will + contain items up to the end of *iterable* the same way that itertools.slice + does: + + >>> list(split_into([1,2,3,4,5,6,7,8,9,0], [2,3,None])) + [[1, 2], [3, 4, 5], [6, 7, 8, 9, 0]] + + :func:`split_into` can be useful for grouping a series of items where the + sizes of the groups are not uniform. An example would be where in a row + from a table, multiple columns represent elements of the same feature + (e.g. a point represented by x,y,z) but, the format is not the same for + all columns. + """ + # convert the iterable argument into an iterator so its contents can + # be consumed by islice in case it is a generator + it = iter(iterable) + + for size in sizes: + if size is None: + yield list(it) + return + else: + yield list(islice(it, size)) + + +def padded(iterable, fillvalue=None, n=None, next_multiple=False): + """Yield the elements from *iterable*, followed by *fillvalue*, such that + at least *n* items are emitted. + + >>> list(padded([1, 2, 3], '?', 5)) + [1, 2, 3, '?', '?'] + + If *next_multiple* is ``True``, *fillvalue* will be emitted until the + number of items emitted is a multiple of *n*: + + >>> list(padded([1, 2, 3, 4], n=3, next_multiple=True)) + [1, 2, 3, 4, None, None] + + If *n* is ``None``, *fillvalue* will be emitted indefinitely. + + To create an *iterable* of exactly size *n*, you can truncate with + :func:`islice`. + + >>> list(islice(padded([1, 2, 3], '?'), 5)) + [1, 2, 3, '?', '?'] + >>> list(islice(padded([1, 2, 3, 4, 5, 6, 7, 8], '?'), 5)) + [1, 2, 3, 4, 5] + + """ + iterable = iter(iterable) + iterable_with_repeat = chain(iterable, repeat(fillvalue)) + + if n is None: + return iterable_with_repeat + elif n < 1: + raise ValueError('n must be at least 1') + elif next_multiple: + + def slice_generator(): + for first in iterable: + yield (first,) + yield islice(iterable_with_repeat, n - 1) + + # While elements exist produce slices of size n + return chain.from_iterable(slice_generator()) + else: + # Ensure the first batch is at least size n then iterate + return chain(islice(iterable_with_repeat, n), iterable) + + +def repeat_each(iterable, n=2): + """Repeat each element in *iterable* *n* times. + + >>> list(repeat_each('ABC', 3)) + ['A', 'A', 'A', 'B', 'B', 'B', 'C', 'C', 'C'] + """ + return chain.from_iterable(map(repeat, iterable, repeat(n))) + + +def repeat_last(iterable, default=None): + """After the *iterable* is exhausted, keep yielding its last element. + + >>> list(islice(repeat_last(range(3)), 5)) + [0, 1, 2, 2, 2] + + If the iterable is empty, yield *default* forever:: + + >>> list(islice(repeat_last(range(0), 42), 5)) + [42, 42, 42, 42, 42] + + """ + item = _marker + for item in iterable: + yield item + final = default if item is _marker else item + yield from repeat(final) + + +def distribute(n, iterable): + """Distribute the items from *iterable* among *n* smaller iterables. + + >>> group_1, group_2 = distribute(2, [1, 2, 3, 4, 5, 6]) + >>> list(group_1) + [1, 3, 5] + >>> list(group_2) + [2, 4, 6] + + If the length of *iterable* is not evenly divisible by *n*, then the + length of the returned iterables will not be identical: + + >>> children = distribute(3, [1, 2, 3, 4, 5, 6, 7]) + >>> [list(c) for c in children] + [[1, 4, 7], [2, 5], [3, 6]] + + If the length of *iterable* is smaller than *n*, then the last returned + iterables will be empty: + + >>> children = distribute(5, [1, 2, 3]) + >>> [list(c) for c in children] + [[1], [2], [3], [], []] + + This function uses :func:`itertools.tee` and may require significant + storage. + + If you need the order items in the smaller iterables to match the + original iterable, see :func:`divide`. + + """ + if n < 1: + raise ValueError('n must be at least 1') + + children = tee(iterable, n) + return [islice(it, index, None, n) for index, it in enumerate(children)] + + +def stagger(iterable, offsets=(-1, 0, 1), longest=False, fillvalue=None): + """Yield tuples whose elements are offset from *iterable*. + The amount by which the `i`-th item in each tuple is offset is given by + the `i`-th item in *offsets*. + + >>> list(stagger([0, 1, 2, 3])) + [(None, 0, 1), (0, 1, 2), (1, 2, 3)] + >>> list(stagger(range(8), offsets=(0, 2, 4))) + [(0, 2, 4), (1, 3, 5), (2, 4, 6), (3, 5, 7)] + + By default, the sequence will end when the final element of a tuple is the + last item in the iterable. To continue until the first element of a tuple + is the last item in the iterable, set *longest* to ``True``:: + + >>> list(stagger([0, 1, 2, 3], longest=True)) + [(None, 0, 1), (0, 1, 2), (1, 2, 3), (2, 3, None), (3, None, None)] + + By default, ``None`` will be used to replace offsets beyond the end of the + sequence. Specify *fillvalue* to use some other value. + + """ + children = tee(iterable, len(offsets)) + + return zip_offset( + *children, offsets=offsets, longest=longest, fillvalue=fillvalue + ) + + +def zip_equal(*iterables): + """``zip`` the input *iterables* together, but raise + ``UnequalIterablesError`` if they aren't all the same length. + + >>> it_1 = range(3) + >>> it_2 = iter('abc') + >>> list(zip_equal(it_1, it_2)) + [(0, 'a'), (1, 'b'), (2, 'c')] + + >>> it_1 = range(3) + >>> it_2 = iter('abcd') + >>> list(zip_equal(it_1, it_2)) # doctest: +IGNORE_EXCEPTION_DETAIL + Traceback (most recent call last): + ... + more_itertools.more.UnequalIterablesError: Iterables have different + lengths + + """ + if hexversion >= 0x30A00A6: + warnings.warn( + ( + 'zip_equal will be removed in a future version of ' + 'more-itertools. Use the builtin zip function with ' + 'strict=True instead.' + ), + DeprecationWarning, + ) + + return _zip_equal(*iterables) + + +def zip_offset(*iterables, offsets, longest=False, fillvalue=None): + """``zip`` the input *iterables* together, but offset the `i`-th iterable + by the `i`-th item in *offsets*. + + >>> list(zip_offset('0123', 'abcdef', offsets=(0, 1))) + [('0', 'b'), ('1', 'c'), ('2', 'd'), ('3', 'e')] + + This can be used as a lightweight alternative to SciPy or pandas to analyze + data sets in which some series have a lead or lag relationship. + + By default, the sequence will end when the shortest iterable is exhausted. + To continue until the longest iterable is exhausted, set *longest* to + ``True``. + + >>> list(zip_offset('0123', 'abcdef', offsets=(0, 1), longest=True)) + [('0', 'b'), ('1', 'c'), ('2', 'd'), ('3', 'e'), (None, 'f')] + + By default, ``None`` will be used to replace offsets beyond the end of the + sequence. Specify *fillvalue* to use some other value. + + """ + if len(iterables) != len(offsets): + raise ValueError("Number of iterables and offsets didn't match") + + staggered = [] + for it, n in zip(iterables, offsets): + if n < 0: + staggered.append(chain(repeat(fillvalue, -n), it)) + elif n > 0: + staggered.append(islice(it, n, None)) + else: + staggered.append(it) + + if longest: + return zip_longest(*staggered, fillvalue=fillvalue) + + return zip(*staggered) + + +def sort_together(iterables, key_list=(0,), key=None, reverse=False): + """Return the input iterables sorted together, with *key_list* as the + priority for sorting. All iterables are trimmed to the length of the + shortest one. + + This can be used like the sorting function in a spreadsheet. If each + iterable represents a column of data, the key list determines which + columns are used for sorting. + + By default, all iterables are sorted using the ``0``-th iterable:: + + >>> iterables = [(4, 3, 2, 1), ('a', 'b', 'c', 'd')] + >>> sort_together(iterables) + [(1, 2, 3, 4), ('d', 'c', 'b', 'a')] + + Set a different key list to sort according to another iterable. + Specifying multiple keys dictates how ties are broken:: + + >>> iterables = [(3, 1, 2), (0, 1, 0), ('c', 'b', 'a')] + >>> sort_together(iterables, key_list=(1, 2)) + [(2, 3, 1), (0, 0, 1), ('a', 'c', 'b')] + + To sort by a function of the elements of the iterable, pass a *key* + function. Its arguments are the elements of the iterables corresponding to + the key list:: + + >>> names = ('a', 'b', 'c') + >>> lengths = (1, 2, 3) + >>> widths = (5, 2, 1) + >>> def area(length, width): + ... return length * width + >>> sort_together([names, lengths, widths], key_list=(1, 2), key=area) + [('c', 'b', 'a'), (3, 2, 1), (1, 2, 5)] + + Set *reverse* to ``True`` to sort in descending order. + + >>> sort_together([(1, 2, 3), ('c', 'b', 'a')], reverse=True) + [(3, 2, 1), ('a', 'b', 'c')] + + """ + if key is None: + # if there is no key function, the key argument to sorted is an + # itemgetter + key_argument = itemgetter(*key_list) + else: + # if there is a key function, call it with the items at the offsets + # specified by the key function as arguments + key_list = list(key_list) + if len(key_list) == 1: + # if key_list contains a single item, pass the item at that offset + # as the only argument to the key function + key_offset = key_list[0] + key_argument = lambda zipped_items: key(zipped_items[key_offset]) + else: + # if key_list contains multiple items, use itemgetter to return a + # tuple of items, which we pass as *args to the key function + get_key_items = itemgetter(*key_list) + key_argument = lambda zipped_items: key( + *get_key_items(zipped_items) + ) + + return list( + zip(*sorted(zip(*iterables), key=key_argument, reverse=reverse)) + ) + + +def unzip(iterable): + """The inverse of :func:`zip`, this function disaggregates the elements + of the zipped *iterable*. + + The ``i``-th iterable contains the ``i``-th element from each element + of the zipped iterable. The first element is used to determine the + length of the remaining elements. + + >>> iterable = [('a', 1), ('b', 2), ('c', 3), ('d', 4)] + >>> letters, numbers = unzip(iterable) + >>> list(letters) + ['a', 'b', 'c', 'd'] + >>> list(numbers) + [1, 2, 3, 4] + + This is similar to using ``zip(*iterable)``, but it avoids reading + *iterable* into memory. Note, however, that this function uses + :func:`itertools.tee` and thus may require significant storage. + + """ + head, iterable = spy(iter(iterable)) + if not head: + # empty iterable, e.g. zip([], [], []) + return () + # spy returns a one-length iterable as head + head = head[0] + iterables = tee(iterable, len(head)) + + def itemgetter(i): + def getter(obj): + try: + return obj[i] + except IndexError: + # basically if we have an iterable like + # iter([(1, 2, 3), (4, 5), (6,)]) + # the second unzipped iterable would fail at the third tuple + # since it would try to access tup[1] + # same with the third unzipped iterable and the second tuple + # to support these "improperly zipped" iterables, + # we create a custom itemgetter + # which just stops the unzipped iterables + # at first length mismatch + raise StopIteration + + return getter + + return tuple(map(itemgetter(i), it) for i, it in enumerate(iterables)) + + +def divide(n, iterable): + """Divide the elements from *iterable* into *n* parts, maintaining + order. + + >>> group_1, group_2 = divide(2, [1, 2, 3, 4, 5, 6]) + >>> list(group_1) + [1, 2, 3] + >>> list(group_2) + [4, 5, 6] + + If the length of *iterable* is not evenly divisible by *n*, then the + length of the returned iterables will not be identical: + + >>> children = divide(3, [1, 2, 3, 4, 5, 6, 7]) + >>> [list(c) for c in children] + [[1, 2, 3], [4, 5], [6, 7]] + + If the length of the iterable is smaller than n, then the last returned + iterables will be empty: + + >>> children = divide(5, [1, 2, 3]) + >>> [list(c) for c in children] + [[1], [2], [3], [], []] + + This function will exhaust the iterable before returning. + If order is not important, see :func:`distribute`, which does not first + pull the iterable into memory. + + """ + if n < 1: + raise ValueError('n must be at least 1') + + try: + iterable[:0] + except TypeError: + seq = tuple(iterable) + else: + seq = iterable + + q, r = divmod(len(seq), n) + + ret = [] + stop = 0 + for i in range(1, n + 1): + start = stop + stop += q + 1 if i <= r else q + ret.append(iter(seq[start:stop])) + + return ret + + +def always_iterable(obj, base_type=(str, bytes)): + """If *obj* is iterable, return an iterator over its items:: + + >>> obj = (1, 2, 3) + >>> list(always_iterable(obj)) + [1, 2, 3] + + If *obj* is not iterable, return a one-item iterable containing *obj*:: + + >>> obj = 1 + >>> list(always_iterable(obj)) + [1] + + If *obj* is ``None``, return an empty iterable: + + >>> obj = None + >>> list(always_iterable(None)) + [] + + By default, binary and text strings are not considered iterable:: + + >>> obj = 'foo' + >>> list(always_iterable(obj)) + ['foo'] + + If *base_type* is set, objects for which ``isinstance(obj, base_type)`` + returns ``True`` won't be considered iterable. + + >>> obj = {'a': 1} + >>> list(always_iterable(obj)) # Iterate over the dict's keys + ['a'] + >>> list(always_iterable(obj, base_type=dict)) # Treat dicts as a unit + [{'a': 1}] + + Set *base_type* to ``None`` to avoid any special handling and treat objects + Python considers iterable as iterable: + + >>> obj = 'foo' + >>> list(always_iterable(obj, base_type=None)) + ['f', 'o', 'o'] + """ + if obj is None: + return iter(()) + + if (base_type is not None) and isinstance(obj, base_type): + return iter((obj,)) + + try: + return iter(obj) + except TypeError: + return iter((obj,)) + + +def adjacent(predicate, iterable, distance=1): + """Return an iterable over `(bool, item)` tuples where the `item` is + drawn from *iterable* and the `bool` indicates whether + that item satisfies the *predicate* or is adjacent to an item that does. + + For example, to find whether items are adjacent to a ``3``:: + + >>> list(adjacent(lambda x: x == 3, range(6))) + [(False, 0), (False, 1), (True, 2), (True, 3), (True, 4), (False, 5)] + + Set *distance* to change what counts as adjacent. For example, to find + whether items are two places away from a ``3``: + + >>> list(adjacent(lambda x: x == 3, range(6), distance=2)) + [(False, 0), (True, 1), (True, 2), (True, 3), (True, 4), (True, 5)] + + This is useful for contextualizing the results of a search function. + For example, a code comparison tool might want to identify lines that + have changed, but also surrounding lines to give the viewer of the diff + context. + + The predicate function will only be called once for each item in the + iterable. + + See also :func:`groupby_transform`, which can be used with this function + to group ranges of items with the same `bool` value. + + """ + # Allow distance=0 mainly for testing that it reproduces results with map() + if distance < 0: + raise ValueError('distance must be at least 0') + + i1, i2 = tee(iterable) + padding = [False] * distance + selected = chain(padding, map(predicate, i1), padding) + adjacent_to_selected = map(any, windowed(selected, 2 * distance + 1)) + return zip(adjacent_to_selected, i2) + + +def groupby_transform(iterable, keyfunc=None, valuefunc=None, reducefunc=None): + """An extension of :func:`itertools.groupby` that can apply transformations + to the grouped data. + + * *keyfunc* is a function computing a key value for each item in *iterable* + * *valuefunc* is a function that transforms the individual items from + *iterable* after grouping + * *reducefunc* is a function that transforms each group of items + + >>> iterable = 'aAAbBBcCC' + >>> keyfunc = lambda k: k.upper() + >>> valuefunc = lambda v: v.lower() + >>> reducefunc = lambda g: ''.join(g) + >>> list(groupby_transform(iterable, keyfunc, valuefunc, reducefunc)) + [('A', 'aaa'), ('B', 'bbb'), ('C', 'ccc')] + + Each optional argument defaults to an identity function if not specified. + + :func:`groupby_transform` is useful when grouping elements of an iterable + using a separate iterable as the key. To do this, :func:`zip` the iterables + and pass a *keyfunc* that extracts the first element and a *valuefunc* + that extracts the second element:: + + >>> from operator import itemgetter + >>> keys = [0, 0, 1, 1, 1, 2, 2, 2, 3] + >>> values = 'abcdefghi' + >>> iterable = zip(keys, values) + >>> grouper = groupby_transform(iterable, itemgetter(0), itemgetter(1)) + >>> [(k, ''.join(g)) for k, g in grouper] + [(0, 'ab'), (1, 'cde'), (2, 'fgh'), (3, 'i')] + + Note that the order of items in the iterable is significant. + Only adjacent items are grouped together, so if you don't want any + duplicate groups, you should sort the iterable by the key function. + + """ + ret = groupby(iterable, keyfunc) + if valuefunc: + ret = ((k, map(valuefunc, g)) for k, g in ret) + if reducefunc: + ret = ((k, reducefunc(g)) for k, g in ret) + + return ret + + +class numeric_range(abc.Sequence, abc.Hashable): + """An extension of the built-in ``range()`` function whose arguments can + be any orderable numeric type. + + With only *stop* specified, *start* defaults to ``0`` and *step* + defaults to ``1``. The output items will match the type of *stop*: + + >>> list(numeric_range(3.5)) + [0.0, 1.0, 2.0, 3.0] + + With only *start* and *stop* specified, *step* defaults to ``1``. The + output items will match the type of *start*: + + >>> from decimal import Decimal + >>> start = Decimal('2.1') + >>> stop = Decimal('5.1') + >>> list(numeric_range(start, stop)) + [Decimal('2.1'), Decimal('3.1'), Decimal('4.1')] + + With *start*, *stop*, and *step* specified the output items will match + the type of ``start + step``: + + >>> from fractions import Fraction + >>> start = Fraction(1, 2) # Start at 1/2 + >>> stop = Fraction(5, 2) # End at 5/2 + >>> step = Fraction(1, 2) # Count by 1/2 + >>> list(numeric_range(start, stop, step)) + [Fraction(1, 2), Fraction(1, 1), Fraction(3, 2), Fraction(2, 1)] + + If *step* is zero, ``ValueError`` is raised. Negative steps are supported: + + >>> list(numeric_range(3, -1, -1.0)) + [3.0, 2.0, 1.0, 0.0] + + Be aware of the limitations of floating point numbers; the representation + of the yielded numbers may be surprising. + + ``datetime.datetime`` objects can be used for *start* and *stop*, if *step* + is a ``datetime.timedelta`` object: + + >>> import datetime + >>> start = datetime.datetime(2019, 1, 1) + >>> stop = datetime.datetime(2019, 1, 3) + >>> step = datetime.timedelta(days=1) + >>> items = iter(numeric_range(start, stop, step)) + >>> next(items) + datetime.datetime(2019, 1, 1, 0, 0) + >>> next(items) + datetime.datetime(2019, 1, 2, 0, 0) + + """ + + _EMPTY_HASH = hash(range(0, 0)) + + def __init__(self, *args): + argc = len(args) + if argc == 1: + (self._stop,) = args + self._start = type(self._stop)(0) + self._step = type(self._stop - self._start)(1) + elif argc == 2: + self._start, self._stop = args + self._step = type(self._stop - self._start)(1) + elif argc == 3: + self._start, self._stop, self._step = args + elif argc == 0: + raise TypeError( + 'numeric_range expected at least ' + '1 argument, got {}'.format(argc) + ) + else: + raise TypeError( + 'numeric_range expected at most ' + '3 arguments, got {}'.format(argc) + ) + + self._zero = type(self._step)(0) + if self._step == self._zero: + raise ValueError('numeric_range() arg 3 must not be zero') + self._growing = self._step > self._zero + + def __bool__(self): + if self._growing: + return self._start < self._stop + else: + return self._start > self._stop + + def __contains__(self, elem): + if self._growing: + if self._start <= elem < self._stop: + return (elem - self._start) % self._step == self._zero + else: + if self._start >= elem > self._stop: + return (self._start - elem) % (-self._step) == self._zero + + return False + + def __eq__(self, other): + if isinstance(other, numeric_range): + empty_self = not bool(self) + empty_other = not bool(other) + if empty_self or empty_other: + return empty_self and empty_other # True if both empty + else: + return ( + self._start == other._start + and self._step == other._step + and self._get_by_index(-1) == other._get_by_index(-1) + ) + else: + return False + + def __getitem__(self, key): + if isinstance(key, int): + return self._get_by_index(key) + elif isinstance(key, slice): + step = self._step if key.step is None else key.step * self._step + + if key.start is None or key.start <= -self._len: + start = self._start + elif key.start >= self._len: + start = self._stop + else: # -self._len < key.start < self._len + start = self._get_by_index(key.start) + + if key.stop is None or key.stop >= self._len: + stop = self._stop + elif key.stop <= -self._len: + stop = self._start + else: # -self._len < key.stop < self._len + stop = self._get_by_index(key.stop) + + return numeric_range(start, stop, step) + else: + raise TypeError( + 'numeric range indices must be ' + 'integers or slices, not {}'.format(type(key).__name__) + ) + + def __hash__(self): + if self: + return hash((self._start, self._get_by_index(-1), self._step)) + else: + return self._EMPTY_HASH + + def __iter__(self): + values = (self._start + (n * self._step) for n in count()) + if self._growing: + return takewhile(partial(gt, self._stop), values) + else: + return takewhile(partial(lt, self._stop), values) + + def __len__(self): + return self._len + + @cached_property + def _len(self): + if self._growing: + start = self._start + stop = self._stop + step = self._step + else: + start = self._stop + stop = self._start + step = -self._step + distance = stop - start + if distance <= self._zero: + return 0 + else: # distance > 0 and step > 0: regular euclidean division + q, r = divmod(distance, step) + return int(q) + int(r != self._zero) + + def __reduce__(self): + return numeric_range, (self._start, self._stop, self._step) + + def __repr__(self): + if self._step == 1: + return "numeric_range({}, {})".format( + repr(self._start), repr(self._stop) + ) + else: + return "numeric_range({}, {}, {})".format( + repr(self._start), repr(self._stop), repr(self._step) + ) + + def __reversed__(self): + return iter( + numeric_range( + self._get_by_index(-1), self._start - self._step, -self._step + ) + ) + + def count(self, value): + return int(value in self) + + def index(self, value): + if self._growing: + if self._start <= value < self._stop: + q, r = divmod(value - self._start, self._step) + if r == self._zero: + return int(q) + else: + if self._start >= value > self._stop: + q, r = divmod(self._start - value, -self._step) + if r == self._zero: + return int(q) + + raise ValueError("{} is not in numeric range".format(value)) + + def _get_by_index(self, i): + if i < 0: + i += self._len + if i < 0 or i >= self._len: + raise IndexError("numeric range object index out of range") + return self._start + i * self._step + + +def count_cycle(iterable, n=None): + """Cycle through the items from *iterable* up to *n* times, yielding + the number of completed cycles along with each item. If *n* is omitted the + process repeats indefinitely. + + >>> list(count_cycle('AB', 3)) + [(0, 'A'), (0, 'B'), (1, 'A'), (1, 'B'), (2, 'A'), (2, 'B')] + + """ + iterable = tuple(iterable) + if not iterable: + return iter(()) + counter = count() if n is None else range(n) + return ((i, item) for i in counter for item in iterable) + + +def mark_ends(iterable): + """Yield 3-tuples of the form ``(is_first, is_last, item)``. + + >>> list(mark_ends('ABC')) + [(True, False, 'A'), (False, False, 'B'), (False, True, 'C')] + + Use this when looping over an iterable to take special action on its first + and/or last items: + + >>> iterable = ['Header', 100, 200, 'Footer'] + >>> total = 0 + >>> for is_first, is_last, item in mark_ends(iterable): + ... if is_first: + ... continue # Skip the header + ... if is_last: + ... continue # Skip the footer + ... total += item + >>> print(total) + 300 + """ + it = iter(iterable) + + try: + b = next(it) + except StopIteration: + return + + try: + for i in count(): + a = b + b = next(it) + yield i == 0, False, a + + except StopIteration: + yield i == 0, True, a + + +def locate(iterable, pred=bool, window_size=None): + """Yield the index of each item in *iterable* for which *pred* returns + ``True``. + + *pred* defaults to :func:`bool`, which will select truthy items: + + >>> list(locate([0, 1, 1, 0, 1, 0, 0])) + [1, 2, 4] + + Set *pred* to a custom function to, e.g., find the indexes for a particular + item. + + >>> list(locate(['a', 'b', 'c', 'b'], lambda x: x == 'b')) + [1, 3] + + If *window_size* is given, then the *pred* function will be called with + that many items. This enables searching for sub-sequences: + + >>> iterable = [0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3] + >>> pred = lambda *args: args == (1, 2, 3) + >>> list(locate(iterable, pred=pred, window_size=3)) + [1, 5, 9] + + Use with :func:`seekable` to find indexes and then retrieve the associated + items: + + >>> from itertools import count + >>> from more_itertools import seekable + >>> source = (3 * n + 1 if (n % 2) else n // 2 for n in count()) + >>> it = seekable(source) + >>> pred = lambda x: x > 100 + >>> indexes = locate(it, pred=pred) + >>> i = next(indexes) + >>> it.seek(i) + >>> next(it) + 106 + + """ + if window_size is None: + return compress(count(), map(pred, iterable)) + + if window_size < 1: + raise ValueError('window size must be at least 1') + + it = windowed(iterable, window_size, fillvalue=_marker) + return compress(count(), starmap(pred, it)) + + +def longest_common_prefix(iterables): + """Yield elements of the longest common prefix amongst given *iterables*. + + >>> ''.join(longest_common_prefix(['abcd', 'abc', 'abf'])) + 'ab' + + """ + return (c[0] for c in takewhile(all_equal, zip(*iterables))) + + +def lstrip(iterable, pred): + """Yield the items from *iterable*, but strip any from the beginning + for which *pred* returns ``True``. + + For example, to remove a set of items from the start of an iterable: + + >>> iterable = (None, False, None, 1, 2, None, 3, False, None) + >>> pred = lambda x: x in {None, False, ''} + >>> list(lstrip(iterable, pred)) + [1, 2, None, 3, False, None] + + This function is analogous to to :func:`str.lstrip`, and is essentially + an wrapper for :func:`itertools.dropwhile`. + + """ + return dropwhile(pred, iterable) + + +def rstrip(iterable, pred): + """Yield the items from *iterable*, but strip any from the end + for which *pred* returns ``True``. + + For example, to remove a set of items from the end of an iterable: + + >>> iterable = (None, False, None, 1, 2, None, 3, False, None) + >>> pred = lambda x: x in {None, False, ''} + >>> list(rstrip(iterable, pred)) + [None, False, None, 1, 2, None, 3] + + This function is analogous to :func:`str.rstrip`. + + """ + cache = [] + cache_append = cache.append + cache_clear = cache.clear + for x in iterable: + if pred(x): + cache_append(x) + else: + yield from cache + cache_clear() + yield x + + +def strip(iterable, pred): + """Yield the items from *iterable*, but strip any from the + beginning and end for which *pred* returns ``True``. + + For example, to remove a set of items from both ends of an iterable: + + >>> iterable = (None, False, None, 1, 2, None, 3, False, None) + >>> pred = lambda x: x in {None, False, ''} + >>> list(strip(iterable, pred)) + [1, 2, None, 3] + + This function is analogous to :func:`str.strip`. + + """ + return rstrip(lstrip(iterable, pred), pred) + + +class islice_extended: + """An extension of :func:`itertools.islice` that supports negative values + for *stop*, *start*, and *step*. + + >>> iterable = iter('abcdefgh') + >>> list(islice_extended(iterable, -4, -1)) + ['e', 'f', 'g'] + + Slices with negative values require some caching of *iterable*, but this + function takes care to minimize the amount of memory required. + + For example, you can use a negative step with an infinite iterator: + + >>> from itertools import count + >>> list(islice_extended(count(), 110, 99, -2)) + [110, 108, 106, 104, 102, 100] + + You can also use slice notation directly: + + >>> iterable = map(str, count()) + >>> it = islice_extended(iterable)[10:20:2] + >>> list(it) + ['10', '12', '14', '16', '18'] + + """ + + def __init__(self, iterable, *args): + it = iter(iterable) + if args: + self._iterable = _islice_helper(it, slice(*args)) + else: + self._iterable = it + + def __iter__(self): + return self + + def __next__(self): + return next(self._iterable) + + def __getitem__(self, key): + if isinstance(key, slice): + return islice_extended(_islice_helper(self._iterable, key)) + + raise TypeError('islice_extended.__getitem__ argument must be a slice') + + +def _islice_helper(it, s): + start = s.start + stop = s.stop + if s.step == 0: + raise ValueError('step argument must be a non-zero integer or None.') + step = s.step or 1 + + if step > 0: + start = 0 if (start is None) else start + + if start < 0: + # Consume all but the last -start items + cache = deque(enumerate(it, 1), maxlen=-start) + len_iter = cache[-1][0] if cache else 0 + + # Adjust start to be positive + i = max(len_iter + start, 0) + + # Adjust stop to be positive + if stop is None: + j = len_iter + elif stop >= 0: + j = min(stop, len_iter) + else: + j = max(len_iter + stop, 0) + + # Slice the cache + n = j - i + if n <= 0: + return + + for index, item in islice(cache, 0, n, step): + yield item + elif (stop is not None) and (stop < 0): + # Advance to the start position + next(islice(it, start, start), None) + + # When stop is negative, we have to carry -stop items while + # iterating + cache = deque(islice(it, -stop), maxlen=-stop) + + for index, item in enumerate(it): + cached_item = cache.popleft() + if index % step == 0: + yield cached_item + cache.append(item) + else: + # When both start and stop are positive we have the normal case + yield from islice(it, start, stop, step) + else: + start = -1 if (start is None) else start + + if (stop is not None) and (stop < 0): + # Consume all but the last items + n = -stop - 1 + cache = deque(enumerate(it, 1), maxlen=n) + len_iter = cache[-1][0] if cache else 0 + + # If start and stop are both negative they are comparable and + # we can just slice. Otherwise we can adjust start to be negative + # and then slice. + if start < 0: + i, j = start, stop + else: + i, j = min(start - len_iter, -1), None + + for index, item in list(cache)[i:j:step]: + yield item + else: + # Advance to the stop position + if stop is not None: + m = stop + 1 + next(islice(it, m, m), None) + + # stop is positive, so if start is negative they are not comparable + # and we need the rest of the items. + if start < 0: + i = start + n = None + # stop is None and start is positive, so we just need items up to + # the start index. + elif stop is None: + i = None + n = start + 1 + # Both stop and start are positive, so they are comparable. + else: + i = None + n = start - stop + if n <= 0: + return + + cache = list(islice(it, n)) + + yield from cache[i::step] + + +def always_reversible(iterable): + """An extension of :func:`reversed` that supports all iterables, not + just those which implement the ``Reversible`` or ``Sequence`` protocols. + + >>> print(*always_reversible(x for x in range(3))) + 2 1 0 + + If the iterable is already reversible, this function returns the + result of :func:`reversed()`. If the iterable is not reversible, + this function will cache the remaining items in the iterable and + yield them in reverse order, which may require significant storage. + """ + try: + return reversed(iterable) + except TypeError: + return reversed(list(iterable)) + + +def consecutive_groups(iterable, ordering=lambda x: x): + """Yield groups of consecutive items using :func:`itertools.groupby`. + The *ordering* function determines whether two items are adjacent by + returning their position. + + By default, the ordering function is the identity function. This is + suitable for finding runs of numbers: + + >>> iterable = [1, 10, 11, 12, 20, 30, 31, 32, 33, 40] + >>> for group in consecutive_groups(iterable): + ... print(list(group)) + [1] + [10, 11, 12] + [20] + [30, 31, 32, 33] + [40] + + For finding runs of adjacent letters, try using the :meth:`index` method + of a string of letters: + + >>> from string import ascii_lowercase + >>> iterable = 'abcdfgilmnop' + >>> ordering = ascii_lowercase.index + >>> for group in consecutive_groups(iterable, ordering): + ... print(list(group)) + ['a', 'b', 'c', 'd'] + ['f', 'g'] + ['i'] + ['l', 'm', 'n', 'o', 'p'] + + Each group of consecutive items is an iterator that shares it source with + *iterable*. When an an output group is advanced, the previous group is + no longer available unless its elements are copied (e.g., into a ``list``). + + >>> iterable = [1, 2, 11, 12, 21, 22] + >>> saved_groups = [] + >>> for group in consecutive_groups(iterable): + ... saved_groups.append(list(group)) # Copy group elements + >>> saved_groups + [[1, 2], [11, 12], [21, 22]] + + """ + for k, g in groupby( + enumerate(iterable), key=lambda x: x[0] - ordering(x[1]) + ): + yield map(itemgetter(1), g) + + +def difference(iterable, func=sub, *, initial=None): + """This function is the inverse of :func:`itertools.accumulate`. By default + it will compute the first difference of *iterable* using + :func:`operator.sub`: + + >>> from itertools import accumulate + >>> iterable = accumulate([0, 1, 2, 3, 4]) # produces 0, 1, 3, 6, 10 + >>> list(difference(iterable)) + [0, 1, 2, 3, 4] + + *func* defaults to :func:`operator.sub`, but other functions can be + specified. They will be applied as follows:: + + A, B, C, D, ... --> A, func(B, A), func(C, B), func(D, C), ... + + For example, to do progressive division: + + >>> iterable = [1, 2, 6, 24, 120] + >>> func = lambda x, y: x // y + >>> list(difference(iterable, func)) + [1, 2, 3, 4, 5] + + If the *initial* keyword is set, the first element will be skipped when + computing successive differences. + + >>> it = [10, 11, 13, 16] # from accumulate([1, 2, 3], initial=10) + >>> list(difference(it, initial=10)) + [1, 2, 3] + + """ + a, b = tee(iterable) + try: + first = [next(b)] + except StopIteration: + return iter([]) + + if initial is not None: + first = [] + + return chain(first, map(func, b, a)) + + +class SequenceView(Sequence): + """Return a read-only view of the sequence object *target*. + + :class:`SequenceView` objects are analogous to Python's built-in + "dictionary view" types. They provide a dynamic view of a sequence's items, + meaning that when the sequence updates, so does the view. + + >>> seq = ['0', '1', '2'] + >>> view = SequenceView(seq) + >>> view + SequenceView(['0', '1', '2']) + >>> seq.append('3') + >>> view + SequenceView(['0', '1', '2', '3']) + + Sequence views support indexing, slicing, and length queries. They act + like the underlying sequence, except they don't allow assignment: + + >>> view[1] + '1' + >>> view[1:-1] + ['1', '2'] + >>> len(view) + 4 + + Sequence views are useful as an alternative to copying, as they don't + require (much) extra storage. + + """ + + def __init__(self, target): + if not isinstance(target, Sequence): + raise TypeError + self._target = target + + def __getitem__(self, index): + return self._target[index] + + def __len__(self): + return len(self._target) + + def __repr__(self): + return '{}({})'.format(self.__class__.__name__, repr(self._target)) + + +class seekable: + """Wrap an iterator to allow for seeking backward and forward. This + progressively caches the items in the source iterable so they can be + re-visited. + + Call :meth:`seek` with an index to seek to that position in the source + iterable. + + To "reset" an iterator, seek to ``0``: + + >>> from itertools import count + >>> it = seekable((str(n) for n in count())) + >>> next(it), next(it), next(it) + ('0', '1', '2') + >>> it.seek(0) + >>> next(it), next(it), next(it) + ('0', '1', '2') + >>> next(it) + '3' + + You can also seek forward: + + >>> it = seekable((str(n) for n in range(20))) + >>> it.seek(10) + >>> next(it) + '10' + >>> it.relative_seek(-2) # Seeking relative to the current position + >>> next(it) + '9' + >>> it.seek(20) # Seeking past the end of the source isn't a problem + >>> list(it) + [] + >>> it.seek(0) # Resetting works even after hitting the end + >>> next(it), next(it), next(it) + ('0', '1', '2') + + Call :meth:`peek` to look ahead one item without advancing the iterator: + + >>> it = seekable('1234') + >>> it.peek() + '1' + >>> list(it) + ['1', '2', '3', '4'] + >>> it.peek(default='empty') + 'empty' + + Before the iterator is at its end, calling :func:`bool` on it will return + ``True``. After it will return ``False``: + + >>> it = seekable('5678') + >>> bool(it) + True + >>> list(it) + ['5', '6', '7', '8'] + >>> bool(it) + False + + You may view the contents of the cache with the :meth:`elements` method. + That returns a :class:`SequenceView`, a view that updates automatically: + + >>> it = seekable((str(n) for n in range(10))) + >>> next(it), next(it), next(it) + ('0', '1', '2') + >>> elements = it.elements() + >>> elements + SequenceView(['0', '1', '2']) + >>> next(it) + '3' + >>> elements + SequenceView(['0', '1', '2', '3']) + + By default, the cache grows as the source iterable progresses, so beware of + wrapping very large or infinite iterables. Supply *maxlen* to limit the + size of the cache (this of course limits how far back you can seek). + + >>> from itertools import count + >>> it = seekable((str(n) for n in count()), maxlen=2) + >>> next(it), next(it), next(it), next(it) + ('0', '1', '2', '3') + >>> list(it.elements()) + ['2', '3'] + >>> it.seek(0) + >>> next(it), next(it), next(it), next(it) + ('2', '3', '4', '5') + >>> next(it) + '6' + + """ + + def __init__(self, iterable, maxlen=None): + self._source = iter(iterable) + if maxlen is None: + self._cache = [] + else: + self._cache = deque([], maxlen) + self._index = None + + def __iter__(self): + return self + + def __next__(self): + if self._index is not None: + try: + item = self._cache[self._index] + except IndexError: + self._index = None + else: + self._index += 1 + return item + + item = next(self._source) + self._cache.append(item) + return item + + def __bool__(self): + try: + self.peek() + except StopIteration: + return False + return True + + def peek(self, default=_marker): + try: + peeked = next(self) + except StopIteration: + if default is _marker: + raise + return default + if self._index is None: + self._index = len(self._cache) + self._index -= 1 + return peeked + + def elements(self): + return SequenceView(self._cache) + + def seek(self, index): + self._index = index + remainder = index - len(self._cache) + if remainder > 0: + consume(self, remainder) + + def relative_seek(self, count): + index = len(self._cache) + self.seek(max(index + count, 0)) + + +class run_length: + """ + :func:`run_length.encode` compresses an iterable with run-length encoding. + It yields groups of repeated items with the count of how many times they + were repeated: + + >>> uncompressed = 'abbcccdddd' + >>> list(run_length.encode(uncompressed)) + [('a', 1), ('b', 2), ('c', 3), ('d', 4)] + + :func:`run_length.decode` decompresses an iterable that was previously + compressed with run-length encoding. It yields the items of the + decompressed iterable: + + >>> compressed = [('a', 1), ('b', 2), ('c', 3), ('d', 4)] + >>> list(run_length.decode(compressed)) + ['a', 'b', 'b', 'c', 'c', 'c', 'd', 'd', 'd', 'd'] + + """ + + @staticmethod + def encode(iterable): + return ((k, ilen(g)) for k, g in groupby(iterable)) + + @staticmethod + def decode(iterable): + return chain.from_iterable(repeat(k, n) for k, n in iterable) + + +def exactly_n(iterable, n, predicate=bool): + """Return ``True`` if exactly ``n`` items in the iterable are ``True`` + according to the *predicate* function. + + >>> exactly_n([True, True, False], 2) + True + >>> exactly_n([True, True, False], 1) + False + >>> exactly_n([0, 1, 2, 3, 4, 5], 3, lambda x: x < 3) + True + + The iterable will be advanced until ``n + 1`` truthy items are encountered, + so avoid calling it on infinite iterables. + + """ + return len(take(n + 1, filter(predicate, iterable))) == n + + +def circular_shifts(iterable): + """Return a list of circular shifts of *iterable*. + + >>> circular_shifts(range(4)) + [(0, 1, 2, 3), (1, 2, 3, 0), (2, 3, 0, 1), (3, 0, 1, 2)] + """ + lst = list(iterable) + return take(len(lst), windowed(cycle(lst), len(lst))) + + +def make_decorator(wrapping_func, result_index=0): + """Return a decorator version of *wrapping_func*, which is a function that + modifies an iterable. *result_index* is the position in that function's + signature where the iterable goes. + + This lets you use itertools on the "production end," i.e. at function + definition. This can augment what the function returns without changing the + function's code. + + For example, to produce a decorator version of :func:`chunked`: + + >>> from more_itertools import chunked + >>> chunker = make_decorator(chunked, result_index=0) + >>> @chunker(3) + ... def iter_range(n): + ... return iter(range(n)) + ... + >>> list(iter_range(9)) + [[0, 1, 2], [3, 4, 5], [6, 7, 8]] + + To only allow truthy items to be returned: + + >>> truth_serum = make_decorator(filter, result_index=1) + >>> @truth_serum(bool) + ... def boolean_test(): + ... return [0, 1, '', ' ', False, True] + ... + >>> list(boolean_test()) + [1, ' ', True] + + The :func:`peekable` and :func:`seekable` wrappers make for practical + decorators: + + >>> from more_itertools import peekable + >>> peekable_function = make_decorator(peekable) + >>> @peekable_function() + ... def str_range(*args): + ... return (str(x) for x in range(*args)) + ... + >>> it = str_range(1, 20, 2) + >>> next(it), next(it), next(it) + ('1', '3', '5') + >>> it.peek() + '7' + >>> next(it) + '7' + + """ + + # See https://sites.google.com/site/bbayles/index/decorator_factory for + # notes on how this works. + def decorator(*wrapping_args, **wrapping_kwargs): + def outer_wrapper(f): + def inner_wrapper(*args, **kwargs): + result = f(*args, **kwargs) + wrapping_args_ = list(wrapping_args) + wrapping_args_.insert(result_index, result) + return wrapping_func(*wrapping_args_, **wrapping_kwargs) + + return inner_wrapper + + return outer_wrapper + + return decorator + + +def map_reduce(iterable, keyfunc, valuefunc=None, reducefunc=None): + """Return a dictionary that maps the items in *iterable* to categories + defined by *keyfunc*, transforms them with *valuefunc*, and + then summarizes them by category with *reducefunc*. + + *valuefunc* defaults to the identity function if it is unspecified. + If *reducefunc* is unspecified, no summarization takes place: + + >>> keyfunc = lambda x: x.upper() + >>> result = map_reduce('abbccc', keyfunc) + >>> sorted(result.items()) + [('A', ['a']), ('B', ['b', 'b']), ('C', ['c', 'c', 'c'])] + + Specifying *valuefunc* transforms the categorized items: + + >>> keyfunc = lambda x: x.upper() + >>> valuefunc = lambda x: 1 + >>> result = map_reduce('abbccc', keyfunc, valuefunc) + >>> sorted(result.items()) + [('A', [1]), ('B', [1, 1]), ('C', [1, 1, 1])] + + Specifying *reducefunc* summarizes the categorized items: + + >>> keyfunc = lambda x: x.upper() + >>> valuefunc = lambda x: 1 + >>> reducefunc = sum + >>> result = map_reduce('abbccc', keyfunc, valuefunc, reducefunc) + >>> sorted(result.items()) + [('A', 1), ('B', 2), ('C', 3)] + + You may want to filter the input iterable before applying the map/reduce + procedure: + + >>> all_items = range(30) + >>> items = [x for x in all_items if 10 <= x <= 20] # Filter + >>> keyfunc = lambda x: x % 2 # Evens map to 0; odds to 1 + >>> categories = map_reduce(items, keyfunc=keyfunc) + >>> sorted(categories.items()) + [(0, [10, 12, 14, 16, 18, 20]), (1, [11, 13, 15, 17, 19])] + >>> summaries = map_reduce(items, keyfunc=keyfunc, reducefunc=sum) + >>> sorted(summaries.items()) + [(0, 90), (1, 75)] + + Note that all items in the iterable are gathered into a list before the + summarization step, which may require significant storage. + + The returned object is a :obj:`collections.defaultdict` with the + ``default_factory`` set to ``None``, such that it behaves like a normal + dictionary. + + """ + valuefunc = (lambda x: x) if (valuefunc is None) else valuefunc + + ret = defaultdict(list) + for item in iterable: + key = keyfunc(item) + value = valuefunc(item) + ret[key].append(value) + + if reducefunc is not None: + for key, value_list in ret.items(): + ret[key] = reducefunc(value_list) + + ret.default_factory = None + return ret + + +def rlocate(iterable, pred=bool, window_size=None): + """Yield the index of each item in *iterable* for which *pred* returns + ``True``, starting from the right and moving left. + + *pred* defaults to :func:`bool`, which will select truthy items: + + >>> list(rlocate([0, 1, 1, 0, 1, 0, 0])) # Truthy at 1, 2, and 4 + [4, 2, 1] + + Set *pred* to a custom function to, e.g., find the indexes for a particular + item: + + >>> iterable = iter('abcb') + >>> pred = lambda x: x == 'b' + >>> list(rlocate(iterable, pred)) + [3, 1] + + If *window_size* is given, then the *pred* function will be called with + that many items. This enables searching for sub-sequences: + + >>> iterable = [0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3] + >>> pred = lambda *args: args == (1, 2, 3) + >>> list(rlocate(iterable, pred=pred, window_size=3)) + [9, 5, 1] + + Beware, this function won't return anything for infinite iterables. + If *iterable* is reversible, ``rlocate`` will reverse it and search from + the right. Otherwise, it will search from the left and return the results + in reverse order. + + See :func:`locate` to for other example applications. + + """ + if window_size is None: + try: + len_iter = len(iterable) + return (len_iter - i - 1 for i in locate(reversed(iterable), pred)) + except TypeError: + pass + + return reversed(list(locate(iterable, pred, window_size))) + + +def replace(iterable, pred, substitutes, count=None, window_size=1): + """Yield the items from *iterable*, replacing the items for which *pred* + returns ``True`` with the items from the iterable *substitutes*. + + >>> iterable = [1, 1, 0, 1, 1, 0, 1, 1] + >>> pred = lambda x: x == 0 + >>> substitutes = (2, 3) + >>> list(replace(iterable, pred, substitutes)) + [1, 1, 2, 3, 1, 1, 2, 3, 1, 1] + + If *count* is given, the number of replacements will be limited: + + >>> iterable = [1, 1, 0, 1, 1, 0, 1, 1, 0] + >>> pred = lambda x: x == 0 + >>> substitutes = [None] + >>> list(replace(iterable, pred, substitutes, count=2)) + [1, 1, None, 1, 1, None, 1, 1, 0] + + Use *window_size* to control the number of items passed as arguments to + *pred*. This allows for locating and replacing subsequences. + + >>> iterable = [0, 1, 2, 5, 0, 1, 2, 5] + >>> window_size = 3 + >>> pred = lambda *args: args == (0, 1, 2) # 3 items passed to pred + >>> substitutes = [3, 4] # Splice in these items + >>> list(replace(iterable, pred, substitutes, window_size=window_size)) + [3, 4, 5, 3, 4, 5] + + """ + if window_size < 1: + raise ValueError('window_size must be at least 1') + + # Save the substitutes iterable, since it's used more than once + substitutes = tuple(substitutes) + + # Add padding such that the number of windows matches the length of the + # iterable + it = chain(iterable, [_marker] * (window_size - 1)) + windows = windowed(it, window_size) + + n = 0 + for w in windows: + # If the current window matches our predicate (and we haven't hit + # our maximum number of replacements), splice in the substitutes + # and then consume the following windows that overlap with this one. + # For example, if the iterable is (0, 1, 2, 3, 4...) + # and the window size is 2, we have (0, 1), (1, 2), (2, 3)... + # If the predicate matches on (0, 1), we need to zap (0, 1) and (1, 2) + if pred(*w): + if (count is None) or (n < count): + n += 1 + yield from substitutes + consume(windows, window_size - 1) + continue + + # If there was no match (or we've reached the replacement limit), + # yield the first item from the window. + if w and (w[0] is not _marker): + yield w[0] + + +def partitions(iterable): + """Yield all possible order-preserving partitions of *iterable*. + + >>> iterable = 'abc' + >>> for part in partitions(iterable): + ... print([''.join(p) for p in part]) + ['abc'] + ['a', 'bc'] + ['ab', 'c'] + ['a', 'b', 'c'] + + This is unrelated to :func:`partition`. + + """ + sequence = list(iterable) + n = len(sequence) + for i in powerset(range(1, n)): + yield [sequence[i:j] for i, j in zip((0,) + i, i + (n,))] + + +def set_partitions(iterable, k=None): + """ + Yield the set partitions of *iterable* into *k* parts. Set partitions are + not order-preserving. + + >>> iterable = 'abc' + >>> for part in set_partitions(iterable, 2): + ... print([''.join(p) for p in part]) + ['a', 'bc'] + ['ab', 'c'] + ['b', 'ac'] + + + If *k* is not given, every set partition is generated. + + >>> iterable = 'abc' + >>> for part in set_partitions(iterable): + ... print([''.join(p) for p in part]) + ['abc'] + ['a', 'bc'] + ['ab', 'c'] + ['b', 'ac'] + ['a', 'b', 'c'] + + """ + L = list(iterable) + n = len(L) + if k is not None: + if k < 1: + raise ValueError( + "Can't partition in a negative or zero number of groups" + ) + elif k > n: + return + + def set_partitions_helper(L, k): + n = len(L) + if k == 1: + yield [L] + elif n == k: + yield [[s] for s in L] + else: + e, *M = L + for p in set_partitions_helper(M, k - 1): + yield [[e], *p] + for p in set_partitions_helper(M, k): + for i in range(len(p)): + yield p[:i] + [[e] + p[i]] + p[i + 1 :] + + if k is None: + for k in range(1, n + 1): + yield from set_partitions_helper(L, k) + else: + yield from set_partitions_helper(L, k) + + +class time_limited: + """ + Yield items from *iterable* until *limit_seconds* have passed. + If the time limit expires before all items have been yielded, the + ``timed_out`` parameter will be set to ``True``. + + >>> from time import sleep + >>> def generator(): + ... yield 1 + ... yield 2 + ... sleep(0.2) + ... yield 3 + >>> iterable = time_limited(0.1, generator()) + >>> list(iterable) + [1, 2] + >>> iterable.timed_out + True + + Note that the time is checked before each item is yielded, and iteration + stops if the time elapsed is greater than *limit_seconds*. If your time + limit is 1 second, but it takes 2 seconds to generate the first item from + the iterable, the function will run for 2 seconds and not yield anything. + As a special case, when *limit_seconds* is zero, the iterator never + returns anything. + + """ + + def __init__(self, limit_seconds, iterable): + if limit_seconds < 0: + raise ValueError('limit_seconds must be positive') + self.limit_seconds = limit_seconds + self._iterable = iter(iterable) + self._start_time = monotonic() + self.timed_out = False + + def __iter__(self): + return self + + def __next__(self): + if self.limit_seconds == 0: + self.timed_out = True + raise StopIteration + item = next(self._iterable) + if monotonic() - self._start_time > self.limit_seconds: + self.timed_out = True + raise StopIteration + + return item + + +def only(iterable, default=None, too_long=None): + """If *iterable* has only one item, return it. + If it has zero items, return *default*. + If it has more than one item, raise the exception given by *too_long*, + which is ``ValueError`` by default. + + >>> only([], default='missing') + 'missing' + >>> only([1]) + 1 + >>> only([1, 2]) # doctest: +IGNORE_EXCEPTION_DETAIL + Traceback (most recent call last): + ... + ValueError: Expected exactly one item in iterable, but got 1, 2, + and perhaps more.' + >>> only([1, 2], too_long=TypeError) # doctest: +IGNORE_EXCEPTION_DETAIL + Traceback (most recent call last): + ... + TypeError + + Note that :func:`only` attempts to advance *iterable* twice to ensure there + is only one item. See :func:`spy` or :func:`peekable` to check + iterable contents less destructively. + """ + it = iter(iterable) + first_value = next(it, default) + + try: + second_value = next(it) + except StopIteration: + pass + else: + msg = ( + 'Expected exactly one item in iterable, but got {!r}, {!r}, ' + 'and perhaps more.'.format(first_value, second_value) + ) + raise too_long or ValueError(msg) + + return first_value + + +def _ichunk(iterable, n): + cache = deque() + chunk = islice(iterable, n) + + def generator(): + while True: + if cache: + yield cache.popleft() + else: + try: + item = next(chunk) + except StopIteration: + return + else: + yield item + + def materialize_next(n=1): + # if n not specified materialize everything + if n is None: + cache.extend(chunk) + return len(cache) + + to_cache = n - len(cache) + + # materialize up to n + if to_cache > 0: + cache.extend(islice(chunk, to_cache)) + + # return number materialized up to n + return min(n, len(cache)) + + return (generator(), materialize_next) + + +def ichunked(iterable, n): + """Break *iterable* into sub-iterables with *n* elements each. + :func:`ichunked` is like :func:`chunked`, but it yields iterables + instead of lists. + + If the sub-iterables are read in order, the elements of *iterable* + won't be stored in memory. + If they are read out of order, :func:`itertools.tee` is used to cache + elements as necessary. + + >>> from itertools import count + >>> all_chunks = ichunked(count(), 4) + >>> c_1, c_2, c_3 = next(all_chunks), next(all_chunks), next(all_chunks) + >>> list(c_2) # c_1's elements have been cached; c_3's haven't been + [4, 5, 6, 7] + >>> list(c_1) + [0, 1, 2, 3] + >>> list(c_3) + [8, 9, 10, 11] + + """ + iterable = iter(iterable) + while True: + # Create new chunk + chunk, materialize_next = _ichunk(iterable, n) + + # Check to see whether we're at the end of the source iterable + if not materialize_next(): + return + + yield chunk + + # Fill previous chunk's cache + materialize_next(None) + + +def iequals(*iterables): + """Return ``True`` if all given *iterables* are equal to each other, + which means that they contain the same elements in the same order. + + The function is useful for comparing iterables of different data types + or iterables that do not support equality checks. + + >>> iequals("abc", ['a', 'b', 'c'], ('a', 'b', 'c'), iter("abc")) + True + + >>> iequals("abc", "acb") + False + + Not to be confused with :func:`all_equal`, which checks whether all + elements of iterable are equal to each other. + + """ + return all(map(all_equal, zip_longest(*iterables, fillvalue=object()))) + + +def distinct_combinations(iterable, r): + """Yield the distinct combinations of *r* items taken from *iterable*. + + >>> list(distinct_combinations([0, 0, 1], 2)) + [(0, 0), (0, 1)] + + Equivalent to ``set(combinations(iterable))``, except duplicates are not + generated and thrown away. For larger input sequences this is much more + efficient. + + """ + if r < 0: + raise ValueError('r must be non-negative') + elif r == 0: + yield () + return + pool = tuple(iterable) + generators = [unique_everseen(enumerate(pool), key=itemgetter(1))] + current_combo = [None] * r + level = 0 + while generators: + try: + cur_idx, p = next(generators[-1]) + except StopIteration: + generators.pop() + level -= 1 + continue + current_combo[level] = p + if level + 1 == r: + yield tuple(current_combo) + else: + generators.append( + unique_everseen( + enumerate(pool[cur_idx + 1 :], cur_idx + 1), + key=itemgetter(1), + ) + ) + level += 1 + + +def filter_except(validator, iterable, *exceptions): + """Yield the items from *iterable* for which the *validator* function does + not raise one of the specified *exceptions*. + + *validator* is called for each item in *iterable*. + It should be a function that accepts one argument and raises an exception + if that item is not valid. + + >>> iterable = ['1', '2', 'three', '4', None] + >>> list(filter_except(int, iterable, ValueError, TypeError)) + ['1', '2', '4'] + + If an exception other than one given by *exceptions* is raised by + *validator*, it is raised like normal. + """ + for item in iterable: + try: + validator(item) + except exceptions: + pass + else: + yield item + + +def map_except(function, iterable, *exceptions): + """Transform each item from *iterable* with *function* and yield the + result, unless *function* raises one of the specified *exceptions*. + + *function* is called to transform each item in *iterable*. + It should accept one argument. + + >>> iterable = ['1', '2', 'three', '4', None] + >>> list(map_except(int, iterable, ValueError, TypeError)) + [1, 2, 4] + + If an exception other than one given by *exceptions* is raised by + *function*, it is raised like normal. + """ + for item in iterable: + try: + yield function(item) + except exceptions: + pass + + +def map_if(iterable, pred, func, func_else=lambda x: x): + """Evaluate each item from *iterable* using *pred*. If the result is + equivalent to ``True``, transform the item with *func* and yield it. + Otherwise, transform the item with *func_else* and yield it. + + *pred*, *func*, and *func_else* should each be functions that accept + one argument. By default, *func_else* is the identity function. + + >>> from math import sqrt + >>> iterable = list(range(-5, 5)) + >>> iterable + [-5, -4, -3, -2, -1, 0, 1, 2, 3, 4] + >>> list(map_if(iterable, lambda x: x > 3, lambda x: 'toobig')) + [-5, -4, -3, -2, -1, 0, 1, 2, 3, 'toobig'] + >>> list(map_if(iterable, lambda x: x >= 0, + ... lambda x: f'{sqrt(x):.2f}', lambda x: None)) + [None, None, None, None, None, '0.00', '1.00', '1.41', '1.73', '2.00'] + """ + for item in iterable: + yield func(item) if pred(item) else func_else(item) + + +def _sample_unweighted(iterable, k): + # Implementation of "Algorithm L" from the 1994 paper by Kim-Hung Li: + # "Reservoir-Sampling Algorithms of Time Complexity O(n(1+log(N/n)))". + + # Fill up the reservoir (collection of samples) with the first `k` samples + reservoir = take(k, iterable) + + # Generate random number that's the largest in a sample of k U(0,1) numbers + # Largest order statistic: https://en.wikipedia.org/wiki/Order_statistic + W = exp(log(random()) / k) + + # The number of elements to skip before changing the reservoir is a random + # number with a geometric distribution. Sample it using random() and logs. + next_index = k + floor(log(random()) / log(1 - W)) + + for index, element in enumerate(iterable, k): + if index == next_index: + reservoir[randrange(k)] = element + # The new W is the largest in a sample of k U(0, `old_W`) numbers + W *= exp(log(random()) / k) + next_index += floor(log(random()) / log(1 - W)) + 1 + + return reservoir + + +def _sample_weighted(iterable, k, weights): + # Implementation of "A-ExpJ" from the 2006 paper by Efraimidis et al. : + # "Weighted random sampling with a reservoir". + + # Log-transform for numerical stability for weights that are small/large + weight_keys = (log(random()) / weight for weight in weights) + + # Fill up the reservoir (collection of samples) with the first `k` + # weight-keys and elements, then heapify the list. + reservoir = take(k, zip(weight_keys, iterable)) + heapify(reservoir) + + # The number of jumps before changing the reservoir is a random variable + # with an exponential distribution. Sample it using random() and logs. + smallest_weight_key, _ = reservoir[0] + weights_to_skip = log(random()) / smallest_weight_key + + for weight, element in zip(weights, iterable): + if weight >= weights_to_skip: + # The notation here is consistent with the paper, but we store + # the weight-keys in log-space for better numerical stability. + smallest_weight_key, _ = reservoir[0] + t_w = exp(weight * smallest_weight_key) + r_2 = uniform(t_w, 1) # generate U(t_w, 1) + weight_key = log(r_2) / weight + heapreplace(reservoir, (weight_key, element)) + smallest_weight_key, _ = reservoir[0] + weights_to_skip = log(random()) / smallest_weight_key + else: + weights_to_skip -= weight + + # Equivalent to [element for weight_key, element in sorted(reservoir)] + return [heappop(reservoir)[1] for _ in range(k)] + + +def sample(iterable, k, weights=None): + """Return a *k*-length list of elements chosen (without replacement) + from the *iterable*. Like :func:`random.sample`, but works on iterables + of unknown length. + + >>> iterable = range(100) + >>> sample(iterable, 5) # doctest: +SKIP + [81, 60, 96, 16, 4] + + An iterable with *weights* may also be given: + + >>> iterable = range(100) + >>> weights = (i * i + 1 for i in range(100)) + >>> sampled = sample(iterable, 5, weights=weights) # doctest: +SKIP + [79, 67, 74, 66, 78] + + The algorithm can also be used to generate weighted random permutations. + The relative weight of each item determines the probability that it + appears late in the permutation. + + >>> data = "abcdefgh" + >>> weights = range(1, len(data) + 1) + >>> sample(data, k=len(data), weights=weights) # doctest: +SKIP + ['c', 'a', 'b', 'e', 'g', 'd', 'h', 'f'] + """ + if k == 0: + return [] + + iterable = iter(iterable) + if weights is None: + return _sample_unweighted(iterable, k) + else: + weights = iter(weights) + return _sample_weighted(iterable, k, weights) + + +def is_sorted(iterable, key=None, reverse=False, strict=False): + """Returns ``True`` if the items of iterable are in sorted order, and + ``False`` otherwise. *key* and *reverse* have the same meaning that they do + in the built-in :func:`sorted` function. + + >>> is_sorted(['1', '2', '3', '4', '5'], key=int) + True + >>> is_sorted([5, 4, 3, 1, 2], reverse=True) + False + + If *strict*, tests for strict sorting, that is, returns ``False`` if equal + elements are found: + + >>> is_sorted([1, 2, 2]) + True + >>> is_sorted([1, 2, 2], strict=True) + False + + The function returns ``False`` after encountering the first out-of-order + item. If there are no out-of-order items, the iterable is exhausted. + """ + + compare = (le if reverse else ge) if strict else (lt if reverse else gt) + it = iterable if key is None else map(key, iterable) + return not any(starmap(compare, pairwise(it))) + + +class AbortThread(BaseException): + pass + + +class callback_iter: + """Convert a function that uses callbacks to an iterator. + + Let *func* be a function that takes a `callback` keyword argument. + For example: + + >>> def func(callback=None): + ... for i, c in [(1, 'a'), (2, 'b'), (3, 'c')]: + ... if callback: + ... callback(i, c) + ... return 4 + + + Use ``with callback_iter(func)`` to get an iterator over the parameters + that are delivered to the callback. + + >>> with callback_iter(func) as it: + ... for args, kwargs in it: + ... print(args) + (1, 'a') + (2, 'b') + (3, 'c') + + The function will be called in a background thread. The ``done`` property + indicates whether it has completed execution. + + >>> it.done + True + + If it completes successfully, its return value will be available + in the ``result`` property. + + >>> it.result + 4 + + Notes: + + * If the function uses some keyword argument besides ``callback``, supply + *callback_kwd*. + * If it finished executing, but raised an exception, accessing the + ``result`` property will raise the same exception. + * If it hasn't finished executing, accessing the ``result`` + property from within the ``with`` block will raise ``RuntimeError``. + * If it hasn't finished executing, accessing the ``result`` property from + outside the ``with`` block will raise a + ``more_itertools.AbortThread`` exception. + * Provide *wait_seconds* to adjust how frequently the it is polled for + output. + + """ + + def __init__(self, func, callback_kwd='callback', wait_seconds=0.1): + self._func = func + self._callback_kwd = callback_kwd + self._aborted = False + self._future = None + self._wait_seconds = wait_seconds + # Lazily import concurrent.future + self._executor = __import__( + 'concurrent.futures' + ).futures.ThreadPoolExecutor(max_workers=1) + self._iterator = self._reader() + + def __enter__(self): + return self + + def __exit__(self, exc_type, exc_value, traceback): + self._aborted = True + self._executor.shutdown() + + def __iter__(self): + return self + + def __next__(self): + return next(self._iterator) + + @property + def done(self): + if self._future is None: + return False + return self._future.done() + + @property + def result(self): + if not self.done: + raise RuntimeError('Function has not yet completed') + + return self._future.result() + + def _reader(self): + q = Queue() + + def callback(*args, **kwargs): + if self._aborted: + raise AbortThread('canceled by user') + + q.put((args, kwargs)) + + self._future = self._executor.submit( + self._func, **{self._callback_kwd: callback} + ) + + while True: + try: + item = q.get(timeout=self._wait_seconds) + except Empty: + pass + else: + q.task_done() + yield item + + if self._future.done(): + break + + remaining = [] + while True: + try: + item = q.get_nowait() + except Empty: + break + else: + q.task_done() + remaining.append(item) + q.join() + yield from remaining + + +def windowed_complete(iterable, n): + """ + Yield ``(beginning, middle, end)`` tuples, where: + + * Each ``middle`` has *n* items from *iterable* + * Each ``beginning`` has the items before the ones in ``middle`` + * Each ``end`` has the items after the ones in ``middle`` + + >>> iterable = range(7) + >>> n = 3 + >>> for beginning, middle, end in windowed_complete(iterable, n): + ... print(beginning, middle, end) + () (0, 1, 2) (3, 4, 5, 6) + (0,) (1, 2, 3) (4, 5, 6) + (0, 1) (2, 3, 4) (5, 6) + (0, 1, 2) (3, 4, 5) (6,) + (0, 1, 2, 3) (4, 5, 6) () + + Note that *n* must be at least 0 and most equal to the length of + *iterable*. + + This function will exhaust the iterable and may require significant + storage. + """ + if n < 0: + raise ValueError('n must be >= 0') + + seq = tuple(iterable) + size = len(seq) + + if n > size: + raise ValueError('n must be <= len(seq)') + + for i in range(size - n + 1): + beginning = seq[:i] + middle = seq[i : i + n] + end = seq[i + n :] + yield beginning, middle, end + + +def all_unique(iterable, key=None): + """ + Returns ``True`` if all the elements of *iterable* are unique (no two + elements are equal). + + >>> all_unique('ABCB') + False + + If a *key* function is specified, it will be used to make comparisons. + + >>> all_unique('ABCb') + True + >>> all_unique('ABCb', str.lower) + False + + The function returns as soon as the first non-unique element is + encountered. Iterables with a mix of hashable and unhashable items can + be used, but the function will be slower for unhashable items. + """ + seenset = set() + seenset_add = seenset.add + seenlist = [] + seenlist_add = seenlist.append + for element in map(key, iterable) if key else iterable: + try: + if element in seenset: + return False + seenset_add(element) + except TypeError: + if element in seenlist: + return False + seenlist_add(element) + return True + + +def nth_product(index, *args): + """Equivalent to ``list(product(*args))[index]``. + + The products of *args* can be ordered lexicographically. + :func:`nth_product` computes the product at sort position *index* without + computing the previous products. + + >>> nth_product(8, range(2), range(2), range(2), range(2)) + (1, 0, 0, 0) + + ``IndexError`` will be raised if the given *index* is invalid. + """ + pools = list(map(tuple, reversed(args))) + ns = list(map(len, pools)) + + c = reduce(mul, ns) + + if index < 0: + index += c + + if not 0 <= index < c: + raise IndexError + + result = [] + for pool, n in zip(pools, ns): + result.append(pool[index % n]) + index //= n + + return tuple(reversed(result)) + + +def nth_permutation(iterable, r, index): + """Equivalent to ``list(permutations(iterable, r))[index]``` + + The subsequences of *iterable* that are of length *r* where order is + important can be ordered lexicographically. :func:`nth_permutation` + computes the subsequence at sort position *index* directly, without + computing the previous subsequences. + + >>> nth_permutation('ghijk', 2, 5) + ('h', 'i') + + ``ValueError`` will be raised If *r* is negative or greater than the length + of *iterable*. + ``IndexError`` will be raised if the given *index* is invalid. + """ + pool = list(iterable) + n = len(pool) + + if r is None or r == n: + r, c = n, factorial(n) + elif not 0 <= r < n: + raise ValueError + else: + c = perm(n, r) + assert c > 0 # factortial(n)>0, and r>> nth_combination_with_replacement(range(5), 3, 5) + (0, 1, 1) + + ``ValueError`` will be raised If *r* is negative or greater than the length + of *iterable*. + ``IndexError`` will be raised if the given *index* is invalid. + """ + pool = tuple(iterable) + n = len(pool) + if (r < 0) or (r > n): + raise ValueError + + c = comb(n + r - 1, r) + + if index < 0: + index += c + + if (index < 0) or (index >= c): + raise IndexError + + result = [] + i = 0 + while r: + r -= 1 + while n >= 0: + num_combs = comb(n + r - 1, r) + if index < num_combs: + break + n -= 1 + i += 1 + index -= num_combs + result.append(pool[i]) + + return tuple(result) + + +def value_chain(*args): + """Yield all arguments passed to the function in the same order in which + they were passed. If an argument itself is iterable then iterate over its + values. + + >>> list(value_chain(1, 2, 3, [4, 5, 6])) + [1, 2, 3, 4, 5, 6] + + Binary and text strings are not considered iterable and are emitted + as-is: + + >>> list(value_chain('12', '34', ['56', '78'])) + ['12', '34', '56', '78'] + + Pre- or postpend a single element to an iterable: + + >>> list(value_chain(1, [2, 3, 4, 5, 6])) + [1, 2, 3, 4, 5, 6] + >>> list(value_chain([1, 2, 3, 4, 5], 6)) + [1, 2, 3, 4, 5, 6] + + Multiple levels of nesting are not flattened. + + """ + for value in args: + if isinstance(value, (str, bytes)): + yield value + continue + try: + yield from value + except TypeError: + yield value + + +def product_index(element, *args): + """Equivalent to ``list(product(*args)).index(element)`` + + The products of *args* can be ordered lexicographically. + :func:`product_index` computes the first index of *element* without + computing the previous products. + + >>> product_index([8, 2], range(10), range(5)) + 42 + + ``ValueError`` will be raised if the given *element* isn't in the product + of *args*. + """ + index = 0 + + for x, pool in zip_longest(element, args, fillvalue=_marker): + if x is _marker or pool is _marker: + raise ValueError('element is not a product of args') + + pool = tuple(pool) + index = index * len(pool) + pool.index(x) + + return index + + +def combination_index(element, iterable): + """Equivalent to ``list(combinations(iterable, r)).index(element)`` + + The subsequences of *iterable* that are of length *r* can be ordered + lexicographically. :func:`combination_index` computes the index of the + first *element*, without computing the previous combinations. + + >>> combination_index('adf', 'abcdefg') + 10 + + ``ValueError`` will be raised if the given *element* isn't one of the + combinations of *iterable*. + """ + element = enumerate(element) + k, y = next(element, (None, None)) + if k is None: + return 0 + + indexes = [] + pool = enumerate(iterable) + for n, x in pool: + if x == y: + indexes.append(n) + tmp, y = next(element, (None, None)) + if tmp is None: + break + else: + k = tmp + else: + raise ValueError('element is not a combination of iterable') + + n, _ = last(pool, default=(n, None)) + + # Python versions below 3.8 don't have math.comb + index = 1 + for i, j in enumerate(reversed(indexes), start=1): + j = n - j + if i <= j: + index += comb(j, i) + + return comb(n + 1, k + 1) - index + + +def combination_with_replacement_index(element, iterable): + """Equivalent to + ``list(combinations_with_replacement(iterable, r)).index(element)`` + + The subsequences with repetition of *iterable* that are of length *r* can + be ordered lexicographically. :func:`combination_with_replacement_index` + computes the index of the first *element*, without computing the previous + combinations with replacement. + + >>> combination_with_replacement_index('adf', 'abcdefg') + 20 + + ``ValueError`` will be raised if the given *element* isn't one of the + combinations with replacement of *iterable*. + """ + element = tuple(element) + l = len(element) + element = enumerate(element) + + k, y = next(element, (None, None)) + if k is None: + return 0 + + indexes = [] + pool = tuple(iterable) + for n, x in enumerate(pool): + while x == y: + indexes.append(n) + tmp, y = next(element, (None, None)) + if tmp is None: + break + else: + k = tmp + if y is None: + break + else: + raise ValueError( + 'element is not a combination with replacement of iterable' + ) + + n = len(pool) + occupations = [0] * n + for p in indexes: + occupations[p] += 1 + + index = 0 + cumulative_sum = 0 + for k in range(1, n): + cumulative_sum += occupations[k - 1] + j = l + n - 1 - k - cumulative_sum + i = n - k + if i <= j: + index += comb(j, i) + + return index + + +def permutation_index(element, iterable): + """Equivalent to ``list(permutations(iterable, r)).index(element)``` + + The subsequences of *iterable* that are of length *r* where order is + important can be ordered lexicographically. :func:`permutation_index` + computes the index of the first *element* directly, without computing + the previous permutations. + + >>> permutation_index([1, 3, 2], range(5)) + 19 + + ``ValueError`` will be raised if the given *element* isn't one of the + permutations of *iterable*. + """ + index = 0 + pool = list(iterable) + for i, x in zip(range(len(pool), -1, -1), element): + r = pool.index(x) + index = index * i + r + del pool[r] + + return index + + +class countable: + """Wrap *iterable* and keep a count of how many items have been consumed. + + The ``items_seen`` attribute starts at ``0`` and increments as the iterable + is consumed: + + >>> iterable = map(str, range(10)) + >>> it = countable(iterable) + >>> it.items_seen + 0 + >>> next(it), next(it) + ('0', '1') + >>> list(it) + ['2', '3', '4', '5', '6', '7', '8', '9'] + >>> it.items_seen + 10 + """ + + def __init__(self, iterable): + self._it = iter(iterable) + self.items_seen = 0 + + def __iter__(self): + return self + + def __next__(self): + item = next(self._it) + self.items_seen += 1 + + return item + + +def chunked_even(iterable, n): + """Break *iterable* into lists of approximately length *n*. + Items are distributed such the lengths of the lists differ by at most + 1 item. + + >>> iterable = [1, 2, 3, 4, 5, 6, 7] + >>> n = 3 + >>> list(chunked_even(iterable, n)) # List lengths: 3, 2, 2 + [[1, 2, 3], [4, 5], [6, 7]] + >>> list(chunked(iterable, n)) # List lengths: 3, 3, 1 + [[1, 2, 3], [4, 5, 6], [7]] + + """ + iterable = iter(iterable) + + # Initialize a buffer to process the chunks while keeping + # some back to fill any underfilled chunks + min_buffer = (n - 1) * (n - 2) + buffer = list(islice(iterable, min_buffer)) + + # Append items until we have a completed chunk + for _ in islice(map(buffer.append, iterable), n, None, n): + yield buffer[:n] + del buffer[:n] + + # Check if any chunks need addition processing + if not buffer: + return + length = len(buffer) + + # Chunks are either size `full_size <= n` or `partial_size = full_size - 1` + q, r = divmod(length, n) + num_lists = q + (1 if r > 0 else 0) + q, r = divmod(length, num_lists) + full_size = q + (1 if r > 0 else 0) + partial_size = full_size - 1 + num_full = length - partial_size * num_lists + + # Yield chunks of full size + partial_start_idx = num_full * full_size + if full_size > 0: + for i in range(0, partial_start_idx, full_size): + yield buffer[i : i + full_size] + + # Yield chunks of partial size + if partial_size > 0: + for i in range(partial_start_idx, length, partial_size): + yield buffer[i : i + partial_size] + + +def zip_broadcast(*objects, scalar_types=(str, bytes), strict=False): + """A version of :func:`zip` that "broadcasts" any scalar + (i.e., non-iterable) items into output tuples. + + >>> iterable_1 = [1, 2, 3] + >>> iterable_2 = ['a', 'b', 'c'] + >>> scalar = '_' + >>> list(zip_broadcast(iterable_1, iterable_2, scalar)) + [(1, 'a', '_'), (2, 'b', '_'), (3, 'c', '_')] + + The *scalar_types* keyword argument determines what types are considered + scalar. It is set to ``(str, bytes)`` by default. Set it to ``None`` to + treat strings and byte strings as iterable: + + >>> list(zip_broadcast('abc', 0, 'xyz', scalar_types=None)) + [('a', 0, 'x'), ('b', 0, 'y'), ('c', 0, 'z')] + + If the *strict* keyword argument is ``True``, then + ``UnequalIterablesError`` will be raised if any of the iterables have + different lengths. + """ + + def is_scalar(obj): + if scalar_types and isinstance(obj, scalar_types): + return True + try: + iter(obj) + except TypeError: + return True + else: + return False + + size = len(objects) + if not size: + return + + new_item = [None] * size + iterables, iterable_positions = [], [] + for i, obj in enumerate(objects): + if is_scalar(obj): + new_item[i] = obj + else: + iterables.append(iter(obj)) + iterable_positions.append(i) + + if not iterables: + yield tuple(objects) + return + + zipper = _zip_equal if strict else zip + for item in zipper(*iterables): + for i, new_item[i] in zip(iterable_positions, item): + pass + yield tuple(new_item) + + +def unique_in_window(iterable, n, key=None): + """Yield the items from *iterable* that haven't been seen recently. + *n* is the size of the lookback window. + + >>> iterable = [0, 1, 0, 2, 3, 0] + >>> n = 3 + >>> list(unique_in_window(iterable, n)) + [0, 1, 2, 3, 0] + + The *key* function, if provided, will be used to determine uniqueness: + + >>> list(unique_in_window('abAcda', 3, key=lambda x: x.lower())) + ['a', 'b', 'c', 'd', 'a'] + + The items in *iterable* must be hashable. + + """ + if n <= 0: + raise ValueError('n must be greater than 0') + + window = deque(maxlen=n) + counts = defaultdict(int) + use_key = key is not None + + for item in iterable: + if len(window) == n: + to_discard = window[0] + if counts[to_discard] == 1: + del counts[to_discard] + else: + counts[to_discard] -= 1 + + k = key(item) if use_key else item + if k not in counts: + yield item + counts[k] += 1 + window.append(k) + + +def duplicates_everseen(iterable, key=None): + """Yield duplicate elements after their first appearance. + + >>> list(duplicates_everseen('mississippi')) + ['s', 'i', 's', 's', 'i', 'p', 'i'] + >>> list(duplicates_everseen('AaaBbbCccAaa', str.lower)) + ['a', 'a', 'b', 'b', 'c', 'c', 'A', 'a', 'a'] + + This function is analogous to :func:`unique_everseen` and is subject to + the same performance considerations. + + """ + seen_set = set() + seen_list = [] + use_key = key is not None + + for element in iterable: + k = key(element) if use_key else element + try: + if k not in seen_set: + seen_set.add(k) + else: + yield element + except TypeError: + if k not in seen_list: + seen_list.append(k) + else: + yield element + + +def duplicates_justseen(iterable, key=None): + """Yields serially-duplicate elements after their first appearance. + + >>> list(duplicates_justseen('mississippi')) + ['s', 's', 'p'] + >>> list(duplicates_justseen('AaaBbbCccAaa', str.lower)) + ['a', 'a', 'b', 'b', 'c', 'c', 'a', 'a'] + + This function is analogous to :func:`unique_justseen`. + + """ + return flatten(g for _, g in groupby(iterable, key) for _ in g) + + +def classify_unique(iterable, key=None): + """Classify each element in terms of its uniqueness. + + For each element in the input iterable, return a 3-tuple consisting of: + + 1. The element itself + 2. ``False`` if the element is equal to the one preceding it in the input, + ``True`` otherwise (i.e. the equivalent of :func:`unique_justseen`) + 3. ``False`` if this element has been seen anywhere in the input before, + ``True`` otherwise (i.e. the equivalent of :func:`unique_everseen`) + + >>> list(classify_unique('otto')) # doctest: +NORMALIZE_WHITESPACE + [('o', True, True), + ('t', True, True), + ('t', False, False), + ('o', True, False)] + + This function is analogous to :func:`unique_everseen` and is subject to + the same performance considerations. + + """ + seen_set = set() + seen_list = [] + use_key = key is not None + previous = None + + for i, element in enumerate(iterable): + k = key(element) if use_key else element + is_unique_justseen = not i or previous != k + previous = k + is_unique_everseen = False + try: + if k not in seen_set: + seen_set.add(k) + is_unique_everseen = True + except TypeError: + if k not in seen_list: + seen_list.append(k) + is_unique_everseen = True + yield element, is_unique_justseen, is_unique_everseen + + +def minmax(iterable_or_value, *others, key=None, default=_marker): + """Returns both the smallest and largest items in an iterable + or the largest of two or more arguments. + + >>> minmax([3, 1, 5]) + (1, 5) + + >>> minmax(4, 2, 6) + (2, 6) + + If a *key* function is provided, it will be used to transform the input + items for comparison. + + >>> minmax([5, 30], key=str) # '30' sorts before '5' + (30, 5) + + If a *default* value is provided, it will be returned if there are no + input items. + + >>> minmax([], default=(0, 0)) + (0, 0) + + Otherwise ``ValueError`` is raised. + + This function is based on the + `recipe `__ by + Raymond Hettinger and takes care to minimize the number of comparisons + performed. + """ + iterable = (iterable_or_value, *others) if others else iterable_or_value + + it = iter(iterable) + + try: + lo = hi = next(it) + except StopIteration as exc: + if default is _marker: + raise ValueError( + '`minmax()` argument is an empty iterable. ' + 'Provide a `default` value to suppress this error.' + ) from exc + return default + + # Different branches depending on the presence of key. This saves a lot + # of unimportant copies which would slow the "key=None" branch + # significantly down. + if key is None: + for x, y in zip_longest(it, it, fillvalue=lo): + if y < x: + x, y = y, x + if x < lo: + lo = x + if hi < y: + hi = y + + else: + lo_key = hi_key = key(lo) + + for x, y in zip_longest(it, it, fillvalue=lo): + x_key, y_key = key(x), key(y) + + if y_key < x_key: + x, y, x_key, y_key = y, x, y_key, x_key + if x_key < lo_key: + lo, lo_key = x, x_key + if hi_key < y_key: + hi, hi_key = y, y_key + + return lo, hi + + +def constrained_batches( + iterable, max_size, max_count=None, get_len=len, strict=True +): + """Yield batches of items from *iterable* with a combined size limited by + *max_size*. + + >>> iterable = [b'12345', b'123', b'12345678', b'1', b'1', b'12', b'1'] + >>> list(constrained_batches(iterable, 10)) + [(b'12345', b'123'), (b'12345678', b'1', b'1'), (b'12', b'1')] + + If a *max_count* is supplied, the number of items per batch is also + limited: + + >>> iterable = [b'12345', b'123', b'12345678', b'1', b'1', b'12', b'1'] + >>> list(constrained_batches(iterable, 10, max_count = 2)) + [(b'12345', b'123'), (b'12345678', b'1'), (b'1', b'12'), (b'1',)] + + If a *get_len* function is supplied, use that instead of :func:`len` to + determine item size. + + If *strict* is ``True``, raise ``ValueError`` if any single item is bigger + than *max_size*. Otherwise, allow single items to exceed *max_size*. + """ + if max_size <= 0: + raise ValueError('maximum size must be greater than zero') + + batch = [] + batch_size = 0 + batch_count = 0 + for item in iterable: + item_len = get_len(item) + if strict and item_len > max_size: + raise ValueError('item size exceeds maximum size') + + reached_count = batch_count == max_count + reached_size = item_len + batch_size > max_size + if batch_count and (reached_size or reached_count): + yield tuple(batch) + batch.clear() + batch_size = 0 + batch_count = 0 + + batch.append(item) + batch_size += item_len + batch_count += 1 + + if batch: + yield tuple(batch) + + +def gray_product(*iterables): + """Like :func:`itertools.product`, but return tuples in an order such + that only one element in the generated tuple changes from one iteration + to the next. + + >>> list(gray_product('AB','CD')) + [('A', 'C'), ('B', 'C'), ('B', 'D'), ('A', 'D')] + + This function consumes all of the input iterables before producing output. + If any of the input iterables have fewer than two items, ``ValueError`` + is raised. + + For information on the algorithm, see + `this section `__ + of Donald Knuth's *The Art of Computer Programming*. + """ + all_iterables = tuple(tuple(x) for x in iterables) + iterable_count = len(all_iterables) + for iterable in all_iterables: + if len(iterable) < 2: + raise ValueError("each iterable must have two or more items") + + # This is based on "Algorithm H" from section 7.2.1.1, page 20. + # a holds the indexes of the source iterables for the n-tuple to be yielded + # f is the array of "focus pointers" + # o is the array of "directions" + a = [0] * iterable_count + f = list(range(iterable_count + 1)) + o = [1] * iterable_count + while True: + yield tuple(all_iterables[i][a[i]] for i in range(iterable_count)) + j = f[0] + f[0] = 0 + if j == iterable_count: + break + a[j] = a[j] + o[j] + if a[j] == 0 or a[j] == len(all_iterables[j]) - 1: + o[j] = -o[j] + f[j] = f[j + 1] + f[j + 1] = j + 1 + + +def partial_product(*iterables): + """Yields tuples containing one item from each iterator, with subsequent + tuples changing a single item at a time by advancing each iterator until it + is exhausted. This sequence guarantees every value in each iterable is + output at least once without generating all possible combinations. + + This may be useful, for example, when testing an expensive function. + + >>> list(partial_product('AB', 'C', 'DEF')) + [('A', 'C', 'D'), ('B', 'C', 'D'), ('B', 'C', 'E'), ('B', 'C', 'F')] + """ + + iterators = list(map(iter, iterables)) + + try: + prod = [next(it) for it in iterators] + except StopIteration: + return + yield tuple(prod) + + for i, it in enumerate(iterators): + for prod[i] in it: + yield tuple(prod) + + +def takewhile_inclusive(predicate, iterable): + """A variant of :func:`takewhile` that yields one additional element. + + >>> list(takewhile_inclusive(lambda x: x < 5, [1, 4, 6, 4, 1])) + [1, 4, 6] + + :func:`takewhile` would return ``[1, 4]``. + """ + for x in iterable: + yield x + if not predicate(x): + break + + +def outer_product(func, xs, ys, *args, **kwargs): + """A generalized outer product that applies a binary function to all + pairs of items. Returns a 2D matrix with ``len(xs)`` rows and ``len(ys)`` + columns. + Also accepts ``*args`` and ``**kwargs`` that are passed to ``func``. + + Multiplication table: + + >>> list(outer_product(mul, range(1, 4), range(1, 6))) + [(1, 2, 3, 4, 5), (2, 4, 6, 8, 10), (3, 6, 9, 12, 15)] + + Cross tabulation: + + >>> xs = ['A', 'B', 'A', 'A', 'B', 'B', 'A', 'A', 'B', 'B'] + >>> ys = ['X', 'X', 'X', 'Y', 'Z', 'Z', 'Y', 'Y', 'Z', 'Z'] + >>> rows = list(zip(xs, ys)) + >>> count_rows = lambda x, y: rows.count((x, y)) + >>> list(outer_product(count_rows, sorted(set(xs)), sorted(set(ys)))) + [(2, 3, 0), (1, 0, 4)] + + Usage with ``*args`` and ``**kwargs``: + + >>> animals = ['cat', 'wolf', 'mouse'] + >>> list(outer_product(min, animals, animals, key=len)) + [('cat', 'cat', 'cat'), ('cat', 'wolf', 'wolf'), ('cat', 'wolf', 'mouse')] + """ + ys = tuple(ys) + return batched( + starmap(lambda x, y: func(x, y, *args, **kwargs), product(xs, ys)), + n=len(ys), + ) + + +def iter_suppress(iterable, *exceptions): + """Yield each of the items from *iterable*. If the iteration raises one of + the specified *exceptions*, that exception will be suppressed and iteration + will stop. + + >>> from itertools import chain + >>> def breaks_at_five(x): + ... while True: + ... if x >= 5: + ... raise RuntimeError + ... yield x + ... x += 1 + >>> it_1 = iter_suppress(breaks_at_five(1), RuntimeError) + >>> it_2 = iter_suppress(breaks_at_five(2), RuntimeError) + >>> list(chain(it_1, it_2)) + [1, 2, 3, 4, 2, 3, 4] + """ + try: + yield from iterable + except exceptions: + return + + +def filter_map(func, iterable): + """Apply *func* to every element of *iterable*, yielding only those which + are not ``None``. + + >>> elems = ['1', 'a', '2', 'b', '3'] + >>> list(filter_map(lambda s: int(s) if s.isnumeric() else None, elems)) + [1, 2, 3] + """ + for x in iterable: + y = func(x) + if y is not None: + yield y + + +def powerset_of_sets(iterable): + """Yields all possible subsets of the iterable. + + >>> list(powerset_of_sets([1, 2, 3])) # doctest: +SKIP + [set(), {1}, {2}, {3}, {1, 2}, {1, 3}, {2, 3}, {1, 2, 3}] + >>> list(powerset_of_sets([1, 1, 0])) # doctest: +SKIP + [set(), {1}, {0}, {0, 1}] + + :func:`powerset_of_sets` takes care to minimize the number + of hash operations performed. + """ + sets = tuple(map(set, dict.fromkeys(map(frozenset, zip(iterable))))) + for r in range(len(sets) + 1): + yield from starmap(set().union, combinations(sets, r)) + + +def join_mappings(**field_to_map): + """ + Joins multiple mappings together using their common keys. + + >>> user_scores = {'elliot': 50, 'claris': 60} + >>> user_times = {'elliot': 30, 'claris': 40} + >>> join_mappings(score=user_scores, time=user_times) + {'elliot': {'score': 50, 'time': 30}, 'claris': {'score': 60, 'time': 40}} + """ + ret = defaultdict(dict) + + for field_name, mapping in field_to_map.items(): + for key, value in mapping.items(): + ret[key][field_name] = value + + return dict(ret) + + +def _complex_sumprod(v1, v2): + """High precision sumprod() for complex numbers. + Used by :func:`dft` and :func:`idft`. + """ + + r1 = chain((p.real for p in v1), (-p.imag for p in v1)) + r2 = chain((q.real for q in v2), (q.imag for q in v2)) + i1 = chain((p.real for p in v1), (p.imag for p in v1)) + i2 = chain((q.imag for q in v2), (q.real for q in v2)) + return complex(_fsumprod(r1, r2), _fsumprod(i1, i2)) + + +def dft(xarr): + """Discrete Fourier Tranform. *xarr* is a sequence of complex numbers. + Yields the components of the corresponding transformed output vector. + + >>> import cmath + >>> xarr = [1, 2-1j, -1j, -1+2j] + >>> Xarr = [2, -2-2j, -2j, 4+4j] + >>> all(map(cmath.isclose, dft(xarr), Xarr)) + True + + See :func:`idft` for the inverse Discrete Fourier Transform. + """ + N = len(xarr) + roots_of_unity = [e ** (n / N * tau * -1j) for n in range(N)] + for k in range(N): + coeffs = [roots_of_unity[k * n % N] for n in range(N)] + yield _complex_sumprod(xarr, coeffs) + + +def idft(Xarr): + """Inverse Discrete Fourier Tranform. *Xarr* is a sequence of + complex numbers. Yields the components of the corresponding + inverse-transformed output vector. + + >>> import cmath + >>> xarr = [1, 2-1j, -1j, -1+2j] + >>> Xarr = [2, -2-2j, -2j, 4+4j] + >>> all(map(cmath.isclose, idft(Xarr), xarr)) + True + + See :func:`dft` for the Discrete Fourier Transform. + """ + N = len(Xarr) + roots_of_unity = [e ** (n / N * tau * 1j) for n in range(N)] + for k in range(N): + coeffs = [roots_of_unity[k * n % N] for n in range(N)] + yield _complex_sumprod(Xarr, coeffs) / N + + +def doublestarmap(func, iterable): + """Apply *func* to every item of *iterable* by dictionary unpacking + the item into *func*. + + The difference between :func:`itertools.starmap` and :func:`doublestarmap` + parallels the distinction between ``func(*a)`` and ``func(**a)``. + + >>> iterable = [{'a': 1, 'b': 2}, {'a': 40, 'b': 60}] + >>> list(doublestarmap(lambda a, b: a + b, iterable)) + [3, 100] + + ``TypeError`` will be raised if *func*'s signature doesn't match the + mapping contained in *iterable* or if *iterable* does not contain mappings. + """ + for item in iterable: + yield func(**item) diff --git a/setuptools/_vendor/more_itertools/more.pyi b/setuptools/_vendor/more_itertools/more.pyi new file mode 100644 index 0000000000..e946023259 --- /dev/null +++ b/setuptools/_vendor/more_itertools/more.pyi @@ -0,0 +1,709 @@ +"""Stubs for more_itertools.more""" + +from __future__ import annotations + +from types import TracebackType +from typing import ( + Any, + Callable, + Container, + ContextManager, + Generic, + Hashable, + Mapping, + Iterable, + Iterator, + Mapping, + overload, + Reversible, + Sequence, + Sized, + Type, + TypeVar, + type_check_only, +) +from typing_extensions import Protocol + +# Type and type variable definitions +_T = TypeVar('_T') +_T1 = TypeVar('_T1') +_T2 = TypeVar('_T2') +_U = TypeVar('_U') +_V = TypeVar('_V') +_W = TypeVar('_W') +_T_co = TypeVar('_T_co', covariant=True) +_GenFn = TypeVar('_GenFn', bound=Callable[..., Iterator[Any]]) +_Raisable = BaseException | Type[BaseException] + +@type_check_only +class _SizedIterable(Protocol[_T_co], Sized, Iterable[_T_co]): ... + +@type_check_only +class _SizedReversible(Protocol[_T_co], Sized, Reversible[_T_co]): ... + +@type_check_only +class _SupportsSlicing(Protocol[_T_co]): + def __getitem__(self, __k: slice) -> _T_co: ... + +def chunked( + iterable: Iterable[_T], n: int | None, strict: bool = ... +) -> Iterator[list[_T]]: ... +@overload +def first(iterable: Iterable[_T]) -> _T: ... +@overload +def first(iterable: Iterable[_T], default: _U) -> _T | _U: ... +@overload +def last(iterable: Iterable[_T]) -> _T: ... +@overload +def last(iterable: Iterable[_T], default: _U) -> _T | _U: ... +@overload +def nth_or_last(iterable: Iterable[_T], n: int) -> _T: ... +@overload +def nth_or_last(iterable: Iterable[_T], n: int, default: _U) -> _T | _U: ... + +class peekable(Generic[_T], Iterator[_T]): + def __init__(self, iterable: Iterable[_T]) -> None: ... + def __iter__(self) -> peekable[_T]: ... + def __bool__(self) -> bool: ... + @overload + def peek(self) -> _T: ... + @overload + def peek(self, default: _U) -> _T | _U: ... + def prepend(self, *items: _T) -> None: ... + def __next__(self) -> _T: ... + @overload + def __getitem__(self, index: int) -> _T: ... + @overload + def __getitem__(self, index: slice) -> list[_T]: ... + +def consumer(func: _GenFn) -> _GenFn: ... +def ilen(iterable: Iterable[_T]) -> int: ... +def iterate(func: Callable[[_T], _T], start: _T) -> Iterator[_T]: ... +def with_iter( + context_manager: ContextManager[Iterable[_T]], +) -> Iterator[_T]: ... +def one( + iterable: Iterable[_T], + too_short: _Raisable | None = ..., + too_long: _Raisable | None = ..., +) -> _T: ... +def raise_(exception: _Raisable, *args: Any) -> None: ... +def strictly_n( + iterable: Iterable[_T], + n: int, + too_short: _GenFn | None = ..., + too_long: _GenFn | None = ..., +) -> list[_T]: ... +def distinct_permutations( + iterable: Iterable[_T], r: int | None = ... +) -> Iterator[tuple[_T, ...]]: ... +def intersperse( + e: _U, iterable: Iterable[_T], n: int = ... +) -> Iterator[_T | _U]: ... +def unique_to_each(*iterables: Iterable[_T]) -> list[list[_T]]: ... +@overload +def windowed( + seq: Iterable[_T], n: int, *, step: int = ... +) -> Iterator[tuple[_T | None, ...]]: ... +@overload +def windowed( + seq: Iterable[_T], n: int, fillvalue: _U, step: int = ... +) -> Iterator[tuple[_T | _U, ...]]: ... +def substrings(iterable: Iterable[_T]) -> Iterator[tuple[_T, ...]]: ... +def substrings_indexes( + seq: Sequence[_T], reverse: bool = ... +) -> Iterator[tuple[Sequence[_T], int, int]]: ... + +class bucket(Generic[_T, _U], Container[_U]): + def __init__( + self, + iterable: Iterable[_T], + key: Callable[[_T], _U], + validator: Callable[[_U], object] | None = ..., + ) -> None: ... + def __contains__(self, value: object) -> bool: ... + def __iter__(self) -> Iterator[_U]: ... + def __getitem__(self, value: object) -> Iterator[_T]: ... + +def spy( + iterable: Iterable[_T], n: int = ... +) -> tuple[list[_T], Iterator[_T]]: ... +def interleave(*iterables: Iterable[_T]) -> Iterator[_T]: ... +def interleave_longest(*iterables: Iterable[_T]) -> Iterator[_T]: ... +def interleave_evenly( + iterables: list[Iterable[_T]], lengths: list[int] | None = ... +) -> Iterator[_T]: ... +def collapse( + iterable: Iterable[Any], + base_type: type | None = ..., + levels: int | None = ..., +) -> Iterator[Any]: ... +@overload +def side_effect( + func: Callable[[_T], object], + iterable: Iterable[_T], + chunk_size: None = ..., + before: Callable[[], object] | None = ..., + after: Callable[[], object] | None = ..., +) -> Iterator[_T]: ... +@overload +def side_effect( + func: Callable[[list[_T]], object], + iterable: Iterable[_T], + chunk_size: int, + before: Callable[[], object] | None = ..., + after: Callable[[], object] | None = ..., +) -> Iterator[_T]: ... +def sliced( + seq: _SupportsSlicing[_T], n: int, strict: bool = ... +) -> Iterator[_T]: ... +def split_at( + iterable: Iterable[_T], + pred: Callable[[_T], object], + maxsplit: int = ..., + keep_separator: bool = ..., +) -> Iterator[list[_T]]: ... +def split_before( + iterable: Iterable[_T], pred: Callable[[_T], object], maxsplit: int = ... +) -> Iterator[list[_T]]: ... +def split_after( + iterable: Iterable[_T], pred: Callable[[_T], object], maxsplit: int = ... +) -> Iterator[list[_T]]: ... +def split_when( + iterable: Iterable[_T], + pred: Callable[[_T, _T], object], + maxsplit: int = ..., +) -> Iterator[list[_T]]: ... +def split_into( + iterable: Iterable[_T], sizes: Iterable[int | None] +) -> Iterator[list[_T]]: ... +@overload +def padded( + iterable: Iterable[_T], + *, + n: int | None = ..., + next_multiple: bool = ..., +) -> Iterator[_T | None]: ... +@overload +def padded( + iterable: Iterable[_T], + fillvalue: _U, + n: int | None = ..., + next_multiple: bool = ..., +) -> Iterator[_T | _U]: ... +@overload +def repeat_last(iterable: Iterable[_T]) -> Iterator[_T]: ... +@overload +def repeat_last(iterable: Iterable[_T], default: _U) -> Iterator[_T | _U]: ... +def distribute(n: int, iterable: Iterable[_T]) -> list[Iterator[_T]]: ... +@overload +def stagger( + iterable: Iterable[_T], + offsets: _SizedIterable[int] = ..., + longest: bool = ..., +) -> Iterator[tuple[_T | None, ...]]: ... +@overload +def stagger( + iterable: Iterable[_T], + offsets: _SizedIterable[int] = ..., + longest: bool = ..., + fillvalue: _U = ..., +) -> Iterator[tuple[_T | _U, ...]]: ... + +class UnequalIterablesError(ValueError): + def __init__(self, details: tuple[int, int, int] | None = ...) -> None: ... + +@overload +def zip_equal(__iter1: Iterable[_T1]) -> Iterator[tuple[_T1]]: ... +@overload +def zip_equal( + __iter1: Iterable[_T1], __iter2: Iterable[_T2] +) -> Iterator[tuple[_T1, _T2]]: ... +@overload +def zip_equal( + __iter1: Iterable[_T], + __iter2: Iterable[_T], + __iter3: Iterable[_T], + *iterables: Iterable[_T], +) -> Iterator[tuple[_T, ...]]: ... +@overload +def zip_offset( + __iter1: Iterable[_T1], + *, + offsets: _SizedIterable[int], + longest: bool = ..., + fillvalue: None = None, +) -> Iterator[tuple[_T1 | None]]: ... +@overload +def zip_offset( + __iter1: Iterable[_T1], + __iter2: Iterable[_T2], + *, + offsets: _SizedIterable[int], + longest: bool = ..., + fillvalue: None = None, +) -> Iterator[tuple[_T1 | None, _T2 | None]]: ... +@overload +def zip_offset( + __iter1: Iterable[_T], + __iter2: Iterable[_T], + __iter3: Iterable[_T], + *iterables: Iterable[_T], + offsets: _SizedIterable[int], + longest: bool = ..., + fillvalue: None = None, +) -> Iterator[tuple[_T | None, ...]]: ... +@overload +def zip_offset( + __iter1: Iterable[_T1], + *, + offsets: _SizedIterable[int], + longest: bool = ..., + fillvalue: _U, +) -> Iterator[tuple[_T1 | _U]]: ... +@overload +def zip_offset( + __iter1: Iterable[_T1], + __iter2: Iterable[_T2], + *, + offsets: _SizedIterable[int], + longest: bool = ..., + fillvalue: _U, +) -> Iterator[tuple[_T1 | _U, _T2 | _U]]: ... +@overload +def zip_offset( + __iter1: Iterable[_T], + __iter2: Iterable[_T], + __iter3: Iterable[_T], + *iterables: Iterable[_T], + offsets: _SizedIterable[int], + longest: bool = ..., + fillvalue: _U, +) -> Iterator[tuple[_T | _U, ...]]: ... +def sort_together( + iterables: Iterable[Iterable[_T]], + key_list: Iterable[int] = ..., + key: Callable[..., Any] | None = ..., + reverse: bool = ..., +) -> list[tuple[_T, ...]]: ... +def unzip(iterable: Iterable[Sequence[_T]]) -> tuple[Iterator[_T], ...]: ... +def divide(n: int, iterable: Iterable[_T]) -> list[Iterator[_T]]: ... +def always_iterable( + obj: object, + base_type: type | tuple[type | tuple[Any, ...], ...] | None = ..., +) -> Iterator[Any]: ... +def adjacent( + predicate: Callable[[_T], bool], + iterable: Iterable[_T], + distance: int = ..., +) -> Iterator[tuple[bool, _T]]: ... +@overload +def groupby_transform( + iterable: Iterable[_T], + keyfunc: None = None, + valuefunc: None = None, + reducefunc: None = None, +) -> Iterator[tuple[_T, Iterator[_T]]]: ... +@overload +def groupby_transform( + iterable: Iterable[_T], + keyfunc: Callable[[_T], _U], + valuefunc: None, + reducefunc: None, +) -> Iterator[tuple[_U, Iterator[_T]]]: ... +@overload +def groupby_transform( + iterable: Iterable[_T], + keyfunc: None, + valuefunc: Callable[[_T], _V], + reducefunc: None, +) -> Iterable[tuple[_T, Iterable[_V]]]: ... +@overload +def groupby_transform( + iterable: Iterable[_T], + keyfunc: Callable[[_T], _U], + valuefunc: Callable[[_T], _V], + reducefunc: None, +) -> Iterable[tuple[_U, Iterator[_V]]]: ... +@overload +def groupby_transform( + iterable: Iterable[_T], + keyfunc: None, + valuefunc: None, + reducefunc: Callable[[Iterator[_T]], _W], +) -> Iterable[tuple[_T, _W]]: ... +@overload +def groupby_transform( + iterable: Iterable[_T], + keyfunc: Callable[[_T], _U], + valuefunc: None, + reducefunc: Callable[[Iterator[_T]], _W], +) -> Iterable[tuple[_U, _W]]: ... +@overload +def groupby_transform( + iterable: Iterable[_T], + keyfunc: None, + valuefunc: Callable[[_T], _V], + reducefunc: Callable[[Iterable[_V]], _W], +) -> Iterable[tuple[_T, _W]]: ... +@overload +def groupby_transform( + iterable: Iterable[_T], + keyfunc: Callable[[_T], _U], + valuefunc: Callable[[_T], _V], + reducefunc: Callable[[Iterable[_V]], _W], +) -> Iterable[tuple[_U, _W]]: ... + +class numeric_range(Generic[_T, _U], Sequence[_T], Hashable, Reversible[_T]): + @overload + def __init__(self, __stop: _T) -> None: ... + @overload + def __init__(self, __start: _T, __stop: _T) -> None: ... + @overload + def __init__(self, __start: _T, __stop: _T, __step: _U) -> None: ... + def __bool__(self) -> bool: ... + def __contains__(self, elem: object) -> bool: ... + def __eq__(self, other: object) -> bool: ... + @overload + def __getitem__(self, key: int) -> _T: ... + @overload + def __getitem__(self, key: slice) -> numeric_range[_T, _U]: ... + def __hash__(self) -> int: ... + def __iter__(self) -> Iterator[_T]: ... + def __len__(self) -> int: ... + def __reduce__( + self, + ) -> tuple[Type[numeric_range[_T, _U]], tuple[_T, _T, _U]]: ... + def __repr__(self) -> str: ... + def __reversed__(self) -> Iterator[_T]: ... + def count(self, value: _T) -> int: ... + def index(self, value: _T) -> int: ... # type: ignore + +def count_cycle( + iterable: Iterable[_T], n: int | None = ... +) -> Iterable[tuple[int, _T]]: ... +def mark_ends( + iterable: Iterable[_T], +) -> Iterable[tuple[bool, bool, _T]]: ... +def locate( + iterable: Iterable[_T], + pred: Callable[..., Any] = ..., + window_size: int | None = ..., +) -> Iterator[int]: ... +def lstrip( + iterable: Iterable[_T], pred: Callable[[_T], object] +) -> Iterator[_T]: ... +def rstrip( + iterable: Iterable[_T], pred: Callable[[_T], object] +) -> Iterator[_T]: ... +def strip( + iterable: Iterable[_T], pred: Callable[[_T], object] +) -> Iterator[_T]: ... + +class islice_extended(Generic[_T], Iterator[_T]): + def __init__(self, iterable: Iterable[_T], *args: int | None) -> None: ... + def __iter__(self) -> islice_extended[_T]: ... + def __next__(self) -> _T: ... + def __getitem__(self, index: slice) -> islice_extended[_T]: ... + +def always_reversible(iterable: Iterable[_T]) -> Iterator[_T]: ... +def consecutive_groups( + iterable: Iterable[_T], ordering: Callable[[_T], int] = ... +) -> Iterator[Iterator[_T]]: ... +@overload +def difference( + iterable: Iterable[_T], + func: Callable[[_T, _T], _U] = ..., + *, + initial: None = ..., +) -> Iterator[_T | _U]: ... +@overload +def difference( + iterable: Iterable[_T], func: Callable[[_T, _T], _U] = ..., *, initial: _U +) -> Iterator[_U]: ... + +class SequenceView(Generic[_T], Sequence[_T]): + def __init__(self, target: Sequence[_T]) -> None: ... + @overload + def __getitem__(self, index: int) -> _T: ... + @overload + def __getitem__(self, index: slice) -> Sequence[_T]: ... + def __len__(self) -> int: ... + +class seekable(Generic[_T], Iterator[_T]): + def __init__( + self, iterable: Iterable[_T], maxlen: int | None = ... + ) -> None: ... + def __iter__(self) -> seekable[_T]: ... + def __next__(self) -> _T: ... + def __bool__(self) -> bool: ... + @overload + def peek(self) -> _T: ... + @overload + def peek(self, default: _U) -> _T | _U: ... + def elements(self) -> SequenceView[_T]: ... + def seek(self, index: int) -> None: ... + def relative_seek(self, count: int) -> None: ... + +class run_length: + @staticmethod + def encode(iterable: Iterable[_T]) -> Iterator[tuple[_T, int]]: ... + @staticmethod + def decode(iterable: Iterable[tuple[_T, int]]) -> Iterator[_T]: ... + +def exactly_n( + iterable: Iterable[_T], n: int, predicate: Callable[[_T], object] = ... +) -> bool: ... +def circular_shifts(iterable: Iterable[_T]) -> list[tuple[_T, ...]]: ... +def make_decorator( + wrapping_func: Callable[..., _U], result_index: int = ... +) -> Callable[..., Callable[[Callable[..., Any]], Callable[..., _U]]]: ... +@overload +def map_reduce( + iterable: Iterable[_T], + keyfunc: Callable[[_T], _U], + valuefunc: None = ..., + reducefunc: None = ..., +) -> dict[_U, list[_T]]: ... +@overload +def map_reduce( + iterable: Iterable[_T], + keyfunc: Callable[[_T], _U], + valuefunc: Callable[[_T], _V], + reducefunc: None = ..., +) -> dict[_U, list[_V]]: ... +@overload +def map_reduce( + iterable: Iterable[_T], + keyfunc: Callable[[_T], _U], + valuefunc: None = ..., + reducefunc: Callable[[list[_T]], _W] = ..., +) -> dict[_U, _W]: ... +@overload +def map_reduce( + iterable: Iterable[_T], + keyfunc: Callable[[_T], _U], + valuefunc: Callable[[_T], _V], + reducefunc: Callable[[list[_V]], _W], +) -> dict[_U, _W]: ... +def rlocate( + iterable: Iterable[_T], + pred: Callable[..., object] = ..., + window_size: int | None = ..., +) -> Iterator[int]: ... +def replace( + iterable: Iterable[_T], + pred: Callable[..., object], + substitutes: Iterable[_U], + count: int | None = ..., + window_size: int = ..., +) -> Iterator[_T | _U]: ... +def partitions(iterable: Iterable[_T]) -> Iterator[list[list[_T]]]: ... +def set_partitions( + iterable: Iterable[_T], k: int | None = ... +) -> Iterator[list[list[_T]]]: ... + +class time_limited(Generic[_T], Iterator[_T]): + def __init__( + self, limit_seconds: float, iterable: Iterable[_T] + ) -> None: ... + def __iter__(self) -> islice_extended[_T]: ... + def __next__(self) -> _T: ... + +@overload +def only( + iterable: Iterable[_T], *, too_long: _Raisable | None = ... +) -> _T | None: ... +@overload +def only( + iterable: Iterable[_T], default: _U, too_long: _Raisable | None = ... +) -> _T | _U: ... +def ichunked(iterable: Iterable[_T], n: int) -> Iterator[Iterator[_T]]: ... +def distinct_combinations( + iterable: Iterable[_T], r: int +) -> Iterator[tuple[_T, ...]]: ... +def filter_except( + validator: Callable[[Any], object], + iterable: Iterable[_T], + *exceptions: Type[BaseException], +) -> Iterator[_T]: ... +def map_except( + function: Callable[[Any], _U], + iterable: Iterable[_T], + *exceptions: Type[BaseException], +) -> Iterator[_U]: ... +def map_if( + iterable: Iterable[Any], + pred: Callable[[Any], bool], + func: Callable[[Any], Any], + func_else: Callable[[Any], Any] | None = ..., +) -> Iterator[Any]: ... +def sample( + iterable: Iterable[_T], + k: int, + weights: Iterable[float] | None = ..., +) -> list[_T]: ... +def is_sorted( + iterable: Iterable[_T], + key: Callable[[_T], _U] | None = ..., + reverse: bool = False, + strict: bool = False, +) -> bool: ... + +class AbortThread(BaseException): + pass + +class callback_iter(Generic[_T], Iterator[_T]): + def __init__( + self, + func: Callable[..., Any], + callback_kwd: str = ..., + wait_seconds: float = ..., + ) -> None: ... + def __enter__(self) -> callback_iter[_T]: ... + def __exit__( + self, + exc_type: Type[BaseException] | None, + exc_value: BaseException | None, + traceback: TracebackType | None, + ) -> bool | None: ... + def __iter__(self) -> callback_iter[_T]: ... + def __next__(self) -> _T: ... + def _reader(self) -> Iterator[_T]: ... + @property + def done(self) -> bool: ... + @property + def result(self) -> Any: ... + +def windowed_complete( + iterable: Iterable[_T], n: int +) -> Iterator[tuple[_T, ...]]: ... +def all_unique( + iterable: Iterable[_T], key: Callable[[_T], _U] | None = ... +) -> bool: ... +def nth_product(index: int, *args: Iterable[_T]) -> tuple[_T, ...]: ... +def nth_combination_with_replacement( + iterable: Iterable[_T], r: int, index: int +) -> tuple[_T, ...]: ... +def nth_permutation( + iterable: Iterable[_T], r: int, index: int +) -> tuple[_T, ...]: ... +def value_chain(*args: _T | Iterable[_T]) -> Iterable[_T]: ... +def product_index(element: Iterable[_T], *args: Iterable[_T]) -> int: ... +def combination_index( + element: Iterable[_T], iterable: Iterable[_T] +) -> int: ... +def combination_with_replacement_index( + element: Iterable[_T], iterable: Iterable[_T] +) -> int: ... +def permutation_index( + element: Iterable[_T], iterable: Iterable[_T] +) -> int: ... +def repeat_each(iterable: Iterable[_T], n: int = ...) -> Iterator[_T]: ... + +class countable(Generic[_T], Iterator[_T]): + def __init__(self, iterable: Iterable[_T]) -> None: ... + def __iter__(self) -> countable[_T]: ... + def __next__(self) -> _T: ... + items_seen: int + +def chunked_even(iterable: Iterable[_T], n: int) -> Iterator[list[_T]]: ... +def zip_broadcast( + *objects: _T | Iterable[_T], + scalar_types: type | tuple[type | tuple[Any, ...], ...] | None = ..., + strict: bool = ..., +) -> Iterable[tuple[_T, ...]]: ... +def unique_in_window( + iterable: Iterable[_T], n: int, key: Callable[[_T], _U] | None = ... +) -> Iterator[_T]: ... +def duplicates_everseen( + iterable: Iterable[_T], key: Callable[[_T], _U] | None = ... +) -> Iterator[_T]: ... +def duplicates_justseen( + iterable: Iterable[_T], key: Callable[[_T], _U] | None = ... +) -> Iterator[_T]: ... +def classify_unique( + iterable: Iterable[_T], key: Callable[[_T], _U] | None = ... +) -> Iterator[tuple[_T, bool, bool]]: ... + +class _SupportsLessThan(Protocol): + def __lt__(self, __other: Any) -> bool: ... + +_SupportsLessThanT = TypeVar("_SupportsLessThanT", bound=_SupportsLessThan) + +@overload +def minmax( + iterable_or_value: Iterable[_SupportsLessThanT], *, key: None = None +) -> tuple[_SupportsLessThanT, _SupportsLessThanT]: ... +@overload +def minmax( + iterable_or_value: Iterable[_T], *, key: Callable[[_T], _SupportsLessThan] +) -> tuple[_T, _T]: ... +@overload +def minmax( + iterable_or_value: Iterable[_SupportsLessThanT], + *, + key: None = None, + default: _U, +) -> _U | tuple[_SupportsLessThanT, _SupportsLessThanT]: ... +@overload +def minmax( + iterable_or_value: Iterable[_T], + *, + key: Callable[[_T], _SupportsLessThan], + default: _U, +) -> _U | tuple[_T, _T]: ... +@overload +def minmax( + iterable_or_value: _SupportsLessThanT, + __other: _SupportsLessThanT, + *others: _SupportsLessThanT, +) -> tuple[_SupportsLessThanT, _SupportsLessThanT]: ... +@overload +def minmax( + iterable_or_value: _T, + __other: _T, + *others: _T, + key: Callable[[_T], _SupportsLessThan], +) -> tuple[_T, _T]: ... +def longest_common_prefix( + iterables: Iterable[Iterable[_T]], +) -> Iterator[_T]: ... +def iequals(*iterables: Iterable[Any]) -> bool: ... +def constrained_batches( + iterable: Iterable[_T], + max_size: int, + max_count: int | None = ..., + get_len: Callable[[_T], object] = ..., + strict: bool = ..., +) -> Iterator[tuple[_T]]: ... +def gray_product(*iterables: Iterable[_T]) -> Iterator[tuple[_T, ...]]: ... +def partial_product(*iterables: Iterable[_T]) -> Iterator[tuple[_T, ...]]: ... +def takewhile_inclusive( + predicate: Callable[[_T], bool], iterable: Iterable[_T] +) -> Iterator[_T]: ... +def outer_product( + func: Callable[[_T, _U], _V], + xs: Iterable[_T], + ys: Iterable[_U], + *args: Any, + **kwargs: Any, +) -> Iterator[tuple[_V, ...]]: ... +def iter_suppress( + iterable: Iterable[_T], + *exceptions: Type[BaseException], +) -> Iterator[_T]: ... +def filter_map( + func: Callable[[_T], _V | None], + iterable: Iterable[_T], +) -> Iterator[_V]: ... +def powerset_of_sets(iterable: Iterable[_T]) -> Iterator[set[_T]]: ... +def join_mappings( + **field_to_map: Mapping[_T, _V] +) -> dict[_T, dict[str, _V]]: ... +def doublestarmap( + func: Callable[..., _T], + iterable: Iterable[Mapping[str, Any]], +) -> Iterator[_T]: ... +def dft(xarr: Sequence[complex]) -> Iterator[complex]: ... +def idft(Xarr: Sequence[complex]) -> Iterator[complex]: ... diff --git a/setuptools/_vendor/more_itertools/py.typed b/setuptools/_vendor/more_itertools/py.typed new file mode 100644 index 0000000000..e69de29bb2 diff --git a/setuptools/_vendor/more_itertools/recipes.py b/setuptools/_vendor/more_itertools/recipes.py new file mode 100644 index 0000000000..b32fa95533 --- /dev/null +++ b/setuptools/_vendor/more_itertools/recipes.py @@ -0,0 +1,1046 @@ +"""Imported from the recipes section of the itertools documentation. + +All functions taken from the recipes section of the itertools library docs +[1]_. +Some backward-compatible usability improvements have been made. + +.. [1] http://docs.python.org/library/itertools.html#recipes + +""" + +import math +import operator + +from collections import deque +from collections.abc import Sized +from functools import partial, reduce +from itertools import ( + chain, + combinations, + compress, + count, + cycle, + groupby, + islice, + product, + repeat, + starmap, + tee, + zip_longest, +) +from random import randrange, sample, choice +from sys import hexversion + +__all__ = [ + 'all_equal', + 'batched', + 'before_and_after', + 'consume', + 'convolve', + 'dotproduct', + 'first_true', + 'factor', + 'flatten', + 'grouper', + 'iter_except', + 'iter_index', + 'matmul', + 'ncycles', + 'nth', + 'nth_combination', + 'padnone', + 'pad_none', + 'pairwise', + 'partition', + 'polynomial_eval', + 'polynomial_from_roots', + 'polynomial_derivative', + 'powerset', + 'prepend', + 'quantify', + 'reshape', + 'random_combination_with_replacement', + 'random_combination', + 'random_permutation', + 'random_product', + 'repeatfunc', + 'roundrobin', + 'sieve', + 'sliding_window', + 'subslices', + 'sum_of_squares', + 'tabulate', + 'tail', + 'take', + 'totient', + 'transpose', + 'triplewise', + 'unique', + 'unique_everseen', + 'unique_justseen', +] + +_marker = object() + + +# zip with strict is available for Python 3.10+ +try: + zip(strict=True) +except TypeError: + _zip_strict = zip +else: + _zip_strict = partial(zip, strict=True) + +# math.sumprod is available for Python 3.12+ +_sumprod = getattr(math, 'sumprod', lambda x, y: dotproduct(x, y)) + + +def take(n, iterable): + """Return first *n* items of the iterable as a list. + + >>> take(3, range(10)) + [0, 1, 2] + + If there are fewer than *n* items in the iterable, all of them are + returned. + + >>> take(10, range(3)) + [0, 1, 2] + + """ + return list(islice(iterable, n)) + + +def tabulate(function, start=0): + """Return an iterator over the results of ``func(start)``, + ``func(start + 1)``, ``func(start + 2)``... + + *func* should be a function that accepts one integer argument. + + If *start* is not specified it defaults to 0. It will be incremented each + time the iterator is advanced. + + >>> square = lambda x: x ** 2 + >>> iterator = tabulate(square, -3) + >>> take(4, iterator) + [9, 4, 1, 0] + + """ + return map(function, count(start)) + + +def tail(n, iterable): + """Return an iterator over the last *n* items of *iterable*. + + >>> t = tail(3, 'ABCDEFG') + >>> list(t) + ['E', 'F', 'G'] + + """ + # If the given iterable has a length, then we can use islice to get its + # final elements. Note that if the iterable is not actually Iterable, + # either islice or deque will throw a TypeError. This is why we don't + # check if it is Iterable. + if isinstance(iterable, Sized): + yield from islice(iterable, max(0, len(iterable) - n), None) + else: + yield from iter(deque(iterable, maxlen=n)) + + +def consume(iterator, n=None): + """Advance *iterable* by *n* steps. If *n* is ``None``, consume it + entirely. + + Efficiently exhausts an iterator without returning values. Defaults to + consuming the whole iterator, but an optional second argument may be + provided to limit consumption. + + >>> i = (x for x in range(10)) + >>> next(i) + 0 + >>> consume(i, 3) + >>> next(i) + 4 + >>> consume(i) + >>> next(i) + Traceback (most recent call last): + File "", line 1, in + StopIteration + + If the iterator has fewer items remaining than the provided limit, the + whole iterator will be consumed. + + >>> i = (x for x in range(3)) + >>> consume(i, 5) + >>> next(i) + Traceback (most recent call last): + File "", line 1, in + StopIteration + + """ + # Use functions that consume iterators at C speed. + if n is None: + # feed the entire iterator into a zero-length deque + deque(iterator, maxlen=0) + else: + # advance to the empty slice starting at position n + next(islice(iterator, n, n), None) + + +def nth(iterable, n, default=None): + """Returns the nth item or a default value. + + >>> l = range(10) + >>> nth(l, 3) + 3 + >>> nth(l, 20, "zebra") + 'zebra' + + """ + return next(islice(iterable, n, None), default) + + +def all_equal(iterable, key=None): + """ + Returns ``True`` if all the elements are equal to each other. + + >>> all_equal('aaaa') + True + >>> all_equal('aaab') + False + + A function that accepts a single argument and returns a transformed version + of each input item can be specified with *key*: + + >>> all_equal('AaaA', key=str.casefold) + True + >>> all_equal([1, 2, 3], key=lambda x: x < 10) + True + + """ + return len(list(islice(groupby(iterable, key), 2))) <= 1 + + +def quantify(iterable, pred=bool): + """Return the how many times the predicate is true. + + >>> quantify([True, False, True]) + 2 + + """ + return sum(map(pred, iterable)) + + +def pad_none(iterable): + """Returns the sequence of elements and then returns ``None`` indefinitely. + + >>> take(5, pad_none(range(3))) + [0, 1, 2, None, None] + + Useful for emulating the behavior of the built-in :func:`map` function. + + See also :func:`padded`. + + """ + return chain(iterable, repeat(None)) + + +padnone = pad_none + + +def ncycles(iterable, n): + """Returns the sequence elements *n* times + + >>> list(ncycles(["a", "b"], 3)) + ['a', 'b', 'a', 'b', 'a', 'b'] + + """ + return chain.from_iterable(repeat(tuple(iterable), n)) + + +def dotproduct(vec1, vec2): + """Returns the dot product of the two iterables. + + >>> dotproduct([10, 10], [20, 20]) + 400 + + """ + return sum(map(operator.mul, vec1, vec2)) + + +def flatten(listOfLists): + """Return an iterator flattening one level of nesting in a list of lists. + + >>> list(flatten([[0, 1], [2, 3]])) + [0, 1, 2, 3] + + See also :func:`collapse`, which can flatten multiple levels of nesting. + + """ + return chain.from_iterable(listOfLists) + + +def repeatfunc(func, times=None, *args): + """Call *func* with *args* repeatedly, returning an iterable over the + results. + + If *times* is specified, the iterable will terminate after that many + repetitions: + + >>> from operator import add + >>> times = 4 + >>> args = 3, 5 + >>> list(repeatfunc(add, times, *args)) + [8, 8, 8, 8] + + If *times* is ``None`` the iterable will not terminate: + + >>> from random import randrange + >>> times = None + >>> args = 1, 11 + >>> take(6, repeatfunc(randrange, times, *args)) # doctest:+SKIP + [2, 4, 8, 1, 8, 4] + + """ + if times is None: + return starmap(func, repeat(args)) + return starmap(func, repeat(args, times)) + + +def _pairwise(iterable): + """Returns an iterator of paired items, overlapping, from the original + + >>> take(4, pairwise(count())) + [(0, 1), (1, 2), (2, 3), (3, 4)] + + On Python 3.10 and above, this is an alias for :func:`itertools.pairwise`. + + """ + a, b = tee(iterable) + next(b, None) + return zip(a, b) + + +try: + from itertools import pairwise as itertools_pairwise +except ImportError: + pairwise = _pairwise +else: + + def pairwise(iterable): + return itertools_pairwise(iterable) + + pairwise.__doc__ = _pairwise.__doc__ + + +class UnequalIterablesError(ValueError): + def __init__(self, details=None): + msg = 'Iterables have different lengths' + if details is not None: + msg += (': index 0 has length {}; index {} has length {}').format( + *details + ) + + super().__init__(msg) + + +def _zip_equal_generator(iterables): + for combo in zip_longest(*iterables, fillvalue=_marker): + for val in combo: + if val is _marker: + raise UnequalIterablesError() + yield combo + + +def _zip_equal(*iterables): + # Check whether the iterables are all the same size. + try: + first_size = len(iterables[0]) + for i, it in enumerate(iterables[1:], 1): + size = len(it) + if size != first_size: + raise UnequalIterablesError(details=(first_size, i, size)) + # All sizes are equal, we can use the built-in zip. + return zip(*iterables) + # If any one of the iterables didn't have a length, start reading + # them until one runs out. + except TypeError: + return _zip_equal_generator(iterables) + + +def grouper(iterable, n, incomplete='fill', fillvalue=None): + """Group elements from *iterable* into fixed-length groups of length *n*. + + >>> list(grouper('ABCDEF', 3)) + [('A', 'B', 'C'), ('D', 'E', 'F')] + + The keyword arguments *incomplete* and *fillvalue* control what happens for + iterables whose length is not a multiple of *n*. + + When *incomplete* is `'fill'`, the last group will contain instances of + *fillvalue*. + + >>> list(grouper('ABCDEFG', 3, incomplete='fill', fillvalue='x')) + [('A', 'B', 'C'), ('D', 'E', 'F'), ('G', 'x', 'x')] + + When *incomplete* is `'ignore'`, the last group will not be emitted. + + >>> list(grouper('ABCDEFG', 3, incomplete='ignore', fillvalue='x')) + [('A', 'B', 'C'), ('D', 'E', 'F')] + + When *incomplete* is `'strict'`, a subclass of `ValueError` will be raised. + + >>> it = grouper('ABCDEFG', 3, incomplete='strict') + >>> list(it) # doctest: +IGNORE_EXCEPTION_DETAIL + Traceback (most recent call last): + ... + UnequalIterablesError + + """ + args = [iter(iterable)] * n + if incomplete == 'fill': + return zip_longest(*args, fillvalue=fillvalue) + if incomplete == 'strict': + return _zip_equal(*args) + if incomplete == 'ignore': + return zip(*args) + else: + raise ValueError('Expected fill, strict, or ignore') + + +def roundrobin(*iterables): + """Yields an item from each iterable, alternating between them. + + >>> list(roundrobin('ABC', 'D', 'EF')) + ['A', 'D', 'E', 'B', 'F', 'C'] + + This function produces the same output as :func:`interleave_longest`, but + may perform better for some inputs (in particular when the number of + iterables is small). + + """ + # Algorithm credited to George Sakkis + iterators = map(iter, iterables) + for num_active in range(len(iterables), 0, -1): + iterators = cycle(islice(iterators, num_active)) + yield from map(next, iterators) + + +def partition(pred, iterable): + """ + Returns a 2-tuple of iterables derived from the input iterable. + The first yields the items that have ``pred(item) == False``. + The second yields the items that have ``pred(item) == True``. + + >>> is_odd = lambda x: x % 2 != 0 + >>> iterable = range(10) + >>> even_items, odd_items = partition(is_odd, iterable) + >>> list(even_items), list(odd_items) + ([0, 2, 4, 6, 8], [1, 3, 5, 7, 9]) + + If *pred* is None, :func:`bool` is used. + + >>> iterable = [0, 1, False, True, '', ' '] + >>> false_items, true_items = partition(None, iterable) + >>> list(false_items), list(true_items) + ([0, False, ''], [1, True, ' ']) + + """ + if pred is None: + pred = bool + + t1, t2, p = tee(iterable, 3) + p1, p2 = tee(map(pred, p)) + return (compress(t1, map(operator.not_, p1)), compress(t2, p2)) + + +def powerset(iterable): + """Yields all possible subsets of the iterable. + + >>> list(powerset([1, 2, 3])) + [(), (1,), (2,), (3,), (1, 2), (1, 3), (2, 3), (1, 2, 3)] + + :func:`powerset` will operate on iterables that aren't :class:`set` + instances, so repeated elements in the input will produce repeated elements + in the output. + + >>> seq = [1, 1, 0] + >>> list(powerset(seq)) + [(), (1,), (1,), (0,), (1, 1), (1, 0), (1, 0), (1, 1, 0)] + + For a variant that efficiently yields actual :class:`set` instances, see + :func:`powerset_of_sets`. + """ + s = list(iterable) + return chain.from_iterable(combinations(s, r) for r in range(len(s) + 1)) + + +def unique_everseen(iterable, key=None): + """ + Yield unique elements, preserving order. + + >>> list(unique_everseen('AAAABBBCCDAABBB')) + ['A', 'B', 'C', 'D'] + >>> list(unique_everseen('ABBCcAD', str.lower)) + ['A', 'B', 'C', 'D'] + + Sequences with a mix of hashable and unhashable items can be used. + The function will be slower (i.e., `O(n^2)`) for unhashable items. + + Remember that ``list`` objects are unhashable - you can use the *key* + parameter to transform the list to a tuple (which is hashable) to + avoid a slowdown. + + >>> iterable = ([1, 2], [2, 3], [1, 2]) + >>> list(unique_everseen(iterable)) # Slow + [[1, 2], [2, 3]] + >>> list(unique_everseen(iterable, key=tuple)) # Faster + [[1, 2], [2, 3]] + + Similarly, you may want to convert unhashable ``set`` objects with + ``key=frozenset``. For ``dict`` objects, + ``key=lambda x: frozenset(x.items())`` can be used. + + """ + seenset = set() + seenset_add = seenset.add + seenlist = [] + seenlist_add = seenlist.append + use_key = key is not None + + for element in iterable: + k = key(element) if use_key else element + try: + if k not in seenset: + seenset_add(k) + yield element + except TypeError: + if k not in seenlist: + seenlist_add(k) + yield element + + +def unique_justseen(iterable, key=None): + """Yields elements in order, ignoring serial duplicates + + >>> list(unique_justseen('AAAABBBCCDAABBB')) + ['A', 'B', 'C', 'D', 'A', 'B'] + >>> list(unique_justseen('ABBCcAD', str.lower)) + ['A', 'B', 'C', 'A', 'D'] + + """ + if key is None: + return map(operator.itemgetter(0), groupby(iterable)) + + return map(next, map(operator.itemgetter(1), groupby(iterable, key))) + + +def unique(iterable, key=None, reverse=False): + """Yields unique elements in sorted order. + + >>> list(unique([[1, 2], [3, 4], [1, 2]])) + [[1, 2], [3, 4]] + + *key* and *reverse* are passed to :func:`sorted`. + + >>> list(unique('ABBcCAD', str.casefold)) + ['A', 'B', 'c', 'D'] + >>> list(unique('ABBcCAD', str.casefold, reverse=True)) + ['D', 'c', 'B', 'A'] + + The elements in *iterable* need not be hashable, but they must be + comparable for sorting to work. + """ + return unique_justseen(sorted(iterable, key=key, reverse=reverse), key=key) + + +def iter_except(func, exception, first=None): + """Yields results from a function repeatedly until an exception is raised. + + Converts a call-until-exception interface to an iterator interface. + Like ``iter(func, sentinel)``, but uses an exception instead of a sentinel + to end the loop. + + >>> l = [0, 1, 2] + >>> list(iter_except(l.pop, IndexError)) + [2, 1, 0] + + Multiple exceptions can be specified as a stopping condition: + + >>> l = [1, 2, 3, '...', 4, 5, 6] + >>> list(iter_except(lambda: 1 + l.pop(), (IndexError, TypeError))) + [7, 6, 5] + >>> list(iter_except(lambda: 1 + l.pop(), (IndexError, TypeError))) + [4, 3, 2] + >>> list(iter_except(lambda: 1 + l.pop(), (IndexError, TypeError))) + [] + + """ + try: + if first is not None: + yield first() + while 1: + yield func() + except exception: + pass + + +def first_true(iterable, default=None, pred=None): + """ + Returns the first true value in the iterable. + + If no true value is found, returns *default* + + If *pred* is not None, returns the first item for which + ``pred(item) == True`` . + + >>> first_true(range(10)) + 1 + >>> first_true(range(10), pred=lambda x: x > 5) + 6 + >>> first_true(range(10), default='missing', pred=lambda x: x > 9) + 'missing' + + """ + return next(filter(pred, iterable), default) + + +def random_product(*args, repeat=1): + """Draw an item at random from each of the input iterables. + + >>> random_product('abc', range(4), 'XYZ') # doctest:+SKIP + ('c', 3, 'Z') + + If *repeat* is provided as a keyword argument, that many items will be + drawn from each iterable. + + >>> random_product('abcd', range(4), repeat=2) # doctest:+SKIP + ('a', 2, 'd', 3) + + This equivalent to taking a random selection from + ``itertools.product(*args, **kwarg)``. + + """ + pools = [tuple(pool) for pool in args] * repeat + return tuple(choice(pool) for pool in pools) + + +def random_permutation(iterable, r=None): + """Return a random *r* length permutation of the elements in *iterable*. + + If *r* is not specified or is ``None``, then *r* defaults to the length of + *iterable*. + + >>> random_permutation(range(5)) # doctest:+SKIP + (3, 4, 0, 1, 2) + + This equivalent to taking a random selection from + ``itertools.permutations(iterable, r)``. + + """ + pool = tuple(iterable) + r = len(pool) if r is None else r + return tuple(sample(pool, r)) + + +def random_combination(iterable, r): + """Return a random *r* length subsequence of the elements in *iterable*. + + >>> random_combination(range(5), 3) # doctest:+SKIP + (2, 3, 4) + + This equivalent to taking a random selection from + ``itertools.combinations(iterable, r)``. + + """ + pool = tuple(iterable) + n = len(pool) + indices = sorted(sample(range(n), r)) + return tuple(pool[i] for i in indices) + + +def random_combination_with_replacement(iterable, r): + """Return a random *r* length subsequence of elements in *iterable*, + allowing individual elements to be repeated. + + >>> random_combination_with_replacement(range(3), 5) # doctest:+SKIP + (0, 0, 1, 2, 2) + + This equivalent to taking a random selection from + ``itertools.combinations_with_replacement(iterable, r)``. + + """ + pool = tuple(iterable) + n = len(pool) + indices = sorted(randrange(n) for i in range(r)) + return tuple(pool[i] for i in indices) + + +def nth_combination(iterable, r, index): + """Equivalent to ``list(combinations(iterable, r))[index]``. + + The subsequences of *iterable* that are of length *r* can be ordered + lexicographically. :func:`nth_combination` computes the subsequence at + sort position *index* directly, without computing the previous + subsequences. + + >>> nth_combination(range(5), 3, 5) + (0, 3, 4) + + ``ValueError`` will be raised If *r* is negative or greater than the length + of *iterable*. + ``IndexError`` will be raised if the given *index* is invalid. + """ + pool = tuple(iterable) + n = len(pool) + if (r < 0) or (r > n): + raise ValueError + + c = 1 + k = min(r, n - r) + for i in range(1, k + 1): + c = c * (n - k + i) // i + + if index < 0: + index += c + + if (index < 0) or (index >= c): + raise IndexError + + result = [] + while r: + c, n, r = c * r // n, n - 1, r - 1 + while index >= c: + index -= c + c, n = c * (n - r) // n, n - 1 + result.append(pool[-1 - n]) + + return tuple(result) + + +def prepend(value, iterator): + """Yield *value*, followed by the elements in *iterator*. + + >>> value = '0' + >>> iterator = ['1', '2', '3'] + >>> list(prepend(value, iterator)) + ['0', '1', '2', '3'] + + To prepend multiple values, see :func:`itertools.chain` + or :func:`value_chain`. + + """ + return chain([value], iterator) + + +def convolve(signal, kernel): + """Convolve the iterable *signal* with the iterable *kernel*. + + >>> signal = (1, 2, 3, 4, 5) + >>> kernel = [3, 2, 1] + >>> list(convolve(signal, kernel)) + [3, 8, 14, 20, 26, 14, 5] + + Note: the input arguments are not interchangeable, as the *kernel* + is immediately consumed and stored. + + """ + # This implementation intentionally doesn't match the one in the itertools + # documentation. + kernel = tuple(kernel)[::-1] + n = len(kernel) + window = deque([0], maxlen=n) * n + for x in chain(signal, repeat(0, n - 1)): + window.append(x) + yield _sumprod(kernel, window) + + +def before_and_after(predicate, it): + """A variant of :func:`takewhile` that allows complete access to the + remainder of the iterator. + + >>> it = iter('ABCdEfGhI') + >>> all_upper, remainder = before_and_after(str.isupper, it) + >>> ''.join(all_upper) + 'ABC' + >>> ''.join(remainder) # takewhile() would lose the 'd' + 'dEfGhI' + + Note that the first iterator must be fully consumed before the second + iterator can generate valid results. + """ + it = iter(it) + transition = [] + + def true_iterator(): + for elem in it: + if predicate(elem): + yield elem + else: + transition.append(elem) + return + + # Note: this is different from itertools recipes to allow nesting + # before_and_after remainders into before_and_after again. See tests + # for an example. + remainder_iterator = chain(transition, it) + + return true_iterator(), remainder_iterator + + +def triplewise(iterable): + """Return overlapping triplets from *iterable*. + + >>> list(triplewise('ABCDE')) + [('A', 'B', 'C'), ('B', 'C', 'D'), ('C', 'D', 'E')] + + """ + for (a, _), (b, c) in pairwise(pairwise(iterable)): + yield a, b, c + + +def sliding_window(iterable, n): + """Return a sliding window of width *n* over *iterable*. + + >>> list(sliding_window(range(6), 4)) + [(0, 1, 2, 3), (1, 2, 3, 4), (2, 3, 4, 5)] + + If *iterable* has fewer than *n* items, then nothing is yielded: + + >>> list(sliding_window(range(3), 4)) + [] + + For a variant with more features, see :func:`windowed`. + """ + it = iter(iterable) + window = deque(islice(it, n - 1), maxlen=n) + for x in it: + window.append(x) + yield tuple(window) + + +def subslices(iterable): + """Return all contiguous non-empty subslices of *iterable*. + + >>> list(subslices('ABC')) + [['A'], ['A', 'B'], ['A', 'B', 'C'], ['B'], ['B', 'C'], ['C']] + + This is similar to :func:`substrings`, but emits items in a different + order. + """ + seq = list(iterable) + slices = starmap(slice, combinations(range(len(seq) + 1), 2)) + return map(operator.getitem, repeat(seq), slices) + + +def polynomial_from_roots(roots): + """Compute a polynomial's coefficients from its roots. + + >>> roots = [5, -4, 3] # (x - 5) * (x + 4) * (x - 3) + >>> polynomial_from_roots(roots) # x^3 - 4 * x^2 - 17 * x + 60 + [1, -4, -17, 60] + """ + factors = zip(repeat(1), map(operator.neg, roots)) + return list(reduce(convolve, factors, [1])) + + +def iter_index(iterable, value, start=0, stop=None): + """Yield the index of each place in *iterable* that *value* occurs, + beginning with index *start* and ending before index *stop*. + + + >>> list(iter_index('AABCADEAF', 'A')) + [0, 1, 4, 7] + >>> list(iter_index('AABCADEAF', 'A', 1)) # start index is inclusive + [1, 4, 7] + >>> list(iter_index('AABCADEAF', 'A', 1, 7)) # stop index is not inclusive + [1, 4] + + The behavior for non-scalar *values* matches the built-in Python types. + + >>> list(iter_index('ABCDABCD', 'AB')) + [0, 4] + >>> list(iter_index([0, 1, 2, 3, 0, 1, 2, 3], [0, 1])) + [] + >>> list(iter_index([[0, 1], [2, 3], [0, 1], [2, 3]], [0, 1])) + [0, 2] + + See :func:`locate` for a more general means of finding the indexes + associated with particular values. + + """ + seq_index = getattr(iterable, 'index', None) + if seq_index is None: + # Slow path for general iterables + it = islice(iterable, start, stop) + for i, element in enumerate(it, start): + if element is value or element == value: + yield i + else: + # Fast path for sequences + stop = len(iterable) if stop is None else stop + i = start - 1 + try: + while True: + yield (i := seq_index(value, i + 1, stop)) + except ValueError: + pass + + +def sieve(n): + """Yield the primes less than n. + + >>> list(sieve(30)) + [2, 3, 5, 7, 11, 13, 17, 19, 23, 29] + """ + if n > 2: + yield 2 + start = 3 + data = bytearray((0, 1)) * (n // 2) + limit = math.isqrt(n) + 1 + for p in iter_index(data, 1, start, limit): + yield from iter_index(data, 1, start, p * p) + data[p * p : n : p + p] = bytes(len(range(p * p, n, p + p))) + start = p * p + yield from iter_index(data, 1, start) + + +def _batched(iterable, n, *, strict=False): + """Batch data into tuples of length *n*. If the number of items in + *iterable* is not divisible by *n*: + * The last batch will be shorter if *strict* is ``False``. + * :exc:`ValueError` will be raised if *strict* is ``True``. + + >>> list(batched('ABCDEFG', 3)) + [('A', 'B', 'C'), ('D', 'E', 'F'), ('G',)] + + On Python 3.13 and above, this is an alias for :func:`itertools.batched`. + """ + if n < 1: + raise ValueError('n must be at least one') + it = iter(iterable) + while batch := tuple(islice(it, n)): + if strict and len(batch) != n: + raise ValueError('batched(): incomplete batch') + yield batch + + +if hexversion >= 0x30D00A2: + from itertools import batched as itertools_batched + + def batched(iterable, n, *, strict=False): + return itertools_batched(iterable, n, strict=strict) + +else: + batched = _batched + + batched.__doc__ = _batched.__doc__ + + +def transpose(it): + """Swap the rows and columns of the input matrix. + + >>> list(transpose([(1, 2, 3), (11, 22, 33)])) + [(1, 11), (2, 22), (3, 33)] + + The caller should ensure that the dimensions of the input are compatible. + If the input is empty, no output will be produced. + """ + return _zip_strict(*it) + + +def reshape(matrix, cols): + """Reshape the 2-D input *matrix* to have a column count given by *cols*. + + >>> matrix = [(0, 1), (2, 3), (4, 5)] + >>> cols = 3 + >>> list(reshape(matrix, cols)) + [(0, 1, 2), (3, 4, 5)] + """ + return batched(chain.from_iterable(matrix), cols) + + +def matmul(m1, m2): + """Multiply two matrices. + + >>> list(matmul([(7, 5), (3, 5)], [(2, 5), (7, 9)])) + [(49, 80), (41, 60)] + + The caller should ensure that the dimensions of the input matrices are + compatible with each other. + """ + n = len(m2[0]) + return batched(starmap(_sumprod, product(m1, transpose(m2))), n) + + +def factor(n): + """Yield the prime factors of n. + + >>> list(factor(360)) + [2, 2, 2, 3, 3, 5] + """ + for prime in sieve(math.isqrt(n) + 1): + while not n % prime: + yield prime + n //= prime + if n == 1: + return + if n > 1: + yield n + + +def polynomial_eval(coefficients, x): + """Evaluate a polynomial at a specific value. + + Example: evaluating x^3 - 4 * x^2 - 17 * x + 60 at x = 2.5: + + >>> coefficients = [1, -4, -17, 60] + >>> x = 2.5 + >>> polynomial_eval(coefficients, x) + 8.125 + """ + n = len(coefficients) + if n == 0: + return x * 0 # coerce zero to the type of x + powers = map(pow, repeat(x), reversed(range(n))) + return _sumprod(coefficients, powers) + + +def sum_of_squares(it): + """Return the sum of the squares of the input values. + + >>> sum_of_squares([10, 20, 30]) + 1400 + """ + return _sumprod(*tee(it)) + + +def polynomial_derivative(coefficients): + """Compute the first derivative of a polynomial. + + Example: evaluating the derivative of x^3 - 4 * x^2 - 17 * x + 60 + + >>> coefficients = [1, -4, -17, 60] + >>> derivative_coefficients = polynomial_derivative(coefficients) + >>> derivative_coefficients + [3, -8, -17] + """ + n = len(coefficients) + powers = reversed(range(1, n)) + return list(map(operator.mul, coefficients, powers)) + + +def totient(n): + """Return the count of natural numbers up to *n* that are coprime with *n*. + + >>> totient(9) + 6 + >>> totient(12) + 4 + """ + # The itertools docs use unique_justseen instead of set; see + # https://github.com/more-itertools/more-itertools/issues/823 + for p in set(factor(n)): + n = n // p * (p - 1) + + return n diff --git a/setuptools/_vendor/more_itertools/recipes.pyi b/setuptools/_vendor/more_itertools/recipes.pyi new file mode 100644 index 0000000000..739acec05f --- /dev/null +++ b/setuptools/_vendor/more_itertools/recipes.pyi @@ -0,0 +1,136 @@ +"""Stubs for more_itertools.recipes""" + +from __future__ import annotations + +from typing import ( + Any, + Callable, + Iterable, + Iterator, + overload, + Sequence, + Type, + TypeVar, +) + +# Type and type variable definitions +_T = TypeVar('_T') +_T1 = TypeVar('_T1') +_T2 = TypeVar('_T2') +_U = TypeVar('_U') + +def take(n: int, iterable: Iterable[_T]) -> list[_T]: ... +def tabulate( + function: Callable[[int], _T], start: int = ... +) -> Iterator[_T]: ... +def tail(n: int, iterable: Iterable[_T]) -> Iterator[_T]: ... +def consume(iterator: Iterable[_T], n: int | None = ...) -> None: ... +@overload +def nth(iterable: Iterable[_T], n: int) -> _T | None: ... +@overload +def nth(iterable: Iterable[_T], n: int, default: _U) -> _T | _U: ... +def all_equal( + iterable: Iterable[_T], key: Callable[[_T], _U] | None = ... +) -> bool: ... +def quantify( + iterable: Iterable[_T], pred: Callable[[_T], bool] = ... +) -> int: ... +def pad_none(iterable: Iterable[_T]) -> Iterator[_T | None]: ... +def padnone(iterable: Iterable[_T]) -> Iterator[_T | None]: ... +def ncycles(iterable: Iterable[_T], n: int) -> Iterator[_T]: ... +def dotproduct(vec1: Iterable[_T1], vec2: Iterable[_T2]) -> Any: ... +def flatten(listOfLists: Iterable[Iterable[_T]]) -> Iterator[_T]: ... +def repeatfunc( + func: Callable[..., _U], times: int | None = ..., *args: Any +) -> Iterator[_U]: ... +def pairwise(iterable: Iterable[_T]) -> Iterator[tuple[_T, _T]]: ... +def grouper( + iterable: Iterable[_T], + n: int, + incomplete: str = ..., + fillvalue: _U = ..., +) -> Iterator[tuple[_T | _U, ...]]: ... +def roundrobin(*iterables: Iterable[_T]) -> Iterator[_T]: ... +def partition( + pred: Callable[[_T], object] | None, iterable: Iterable[_T] +) -> tuple[Iterator[_T], Iterator[_T]]: ... +def powerset(iterable: Iterable[_T]) -> Iterator[tuple[_T, ...]]: ... +def unique_everseen( + iterable: Iterable[_T], key: Callable[[_T], _U] | None = ... +) -> Iterator[_T]: ... +def unique_justseen( + iterable: Iterable[_T], key: Callable[[_T], object] | None = ... +) -> Iterator[_T]: ... +def unique( + iterable: Iterable[_T], + key: Callable[[_T], object] | None = ..., + reverse: bool = False, +) -> Iterator[_T]: ... +@overload +def iter_except( + func: Callable[[], _T], + exception: Type[BaseException] | tuple[Type[BaseException], ...], + first: None = ..., +) -> Iterator[_T]: ... +@overload +def iter_except( + func: Callable[[], _T], + exception: Type[BaseException] | tuple[Type[BaseException], ...], + first: Callable[[], _U], +) -> Iterator[_T | _U]: ... +@overload +def first_true( + iterable: Iterable[_T], *, pred: Callable[[_T], object] | None = ... +) -> _T | None: ... +@overload +def first_true( + iterable: Iterable[_T], + default: _U, + pred: Callable[[_T], object] | None = ..., +) -> _T | _U: ... +def random_product( + *args: Iterable[_T], repeat: int = ... +) -> tuple[_T, ...]: ... +def random_permutation( + iterable: Iterable[_T], r: int | None = ... +) -> tuple[_T, ...]: ... +def random_combination(iterable: Iterable[_T], r: int) -> tuple[_T, ...]: ... +def random_combination_with_replacement( + iterable: Iterable[_T], r: int +) -> tuple[_T, ...]: ... +def nth_combination( + iterable: Iterable[_T], r: int, index: int +) -> tuple[_T, ...]: ... +def prepend(value: _T, iterator: Iterable[_U]) -> Iterator[_T | _U]: ... +def convolve(signal: Iterable[_T], kernel: Iterable[_T]) -> Iterator[_T]: ... +def before_and_after( + predicate: Callable[[_T], bool], it: Iterable[_T] +) -> tuple[Iterator[_T], Iterator[_T]]: ... +def triplewise(iterable: Iterable[_T]) -> Iterator[tuple[_T, _T, _T]]: ... +def sliding_window( + iterable: Iterable[_T], n: int +) -> Iterator[tuple[_T, ...]]: ... +def subslices(iterable: Iterable[_T]) -> Iterator[list[_T]]: ... +def polynomial_from_roots(roots: Sequence[_T]) -> list[_T]: ... +def iter_index( + iterable: Iterable[_T], + value: Any, + start: int | None = ..., + stop: int | None = ..., +) -> Iterator[int]: ... +def sieve(n: int) -> Iterator[int]: ... +def batched( + iterable: Iterable[_T], n: int, *, strict: bool = False +) -> Iterator[tuple[_T]]: ... +def transpose( + it: Iterable[Iterable[_T]], +) -> Iterator[tuple[_T, ...]]: ... +def reshape( + matrix: Iterable[Iterable[_T]], cols: int +) -> Iterator[tuple[_T, ...]]: ... +def matmul(m1: Sequence[_T], m2: Sequence[_T]) -> Iterator[tuple[_T]]: ... +def factor(n: int) -> Iterator[int]: ... +def polynomial_eval(coefficients: Sequence[_T], x: _U) -> _U: ... +def sum_of_squares(it: Iterable[_T]) -> _T: ... +def polynomial_derivative(coefficients: Sequence[_T]) -> list[_T]: ... +def totient(n: int) -> int: ... diff --git a/setuptools/_vendor/packaging-24.2.dist-info/INSTALLER b/setuptools/_vendor/packaging-24.2.dist-info/INSTALLER new file mode 100644 index 0000000000..5c69047b2e --- /dev/null +++ b/setuptools/_vendor/packaging-24.2.dist-info/INSTALLER @@ -0,0 +1 @@ +uv \ No newline at end of file diff --git a/setuptools/_vendor/packaging-24.2.dist-info/LICENSE b/setuptools/_vendor/packaging-24.2.dist-info/LICENSE new file mode 100644 index 0000000000..6f62d44e4e --- /dev/null +++ b/setuptools/_vendor/packaging-24.2.dist-info/LICENSE @@ -0,0 +1,3 @@ +This software is made available under the terms of *either* of the licenses +found in LICENSE.APACHE or LICENSE.BSD. 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Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/setuptools/_vendor/packaging-24.2.dist-info/METADATA b/setuptools/_vendor/packaging-24.2.dist-info/METADATA new file mode 100644 index 0000000000..1479c8694b --- /dev/null +++ b/setuptools/_vendor/packaging-24.2.dist-info/METADATA @@ -0,0 +1,102 @@ +Metadata-Version: 2.3 +Name: packaging +Version: 24.2 +Summary: Core utilities for Python packages +Author-email: Donald Stufft +Requires-Python: >=3.8 +Description-Content-Type: text/x-rst +Classifier: Development Status :: 5 - Production/Stable +Classifier: Intended Audience :: Developers +Classifier: License :: OSI Approved :: Apache Software License +Classifier: License :: OSI Approved :: BSD License +Classifier: Programming Language :: Python +Classifier: Programming Language :: Python :: 3 +Classifier: Programming Language :: Python :: 3 :: Only +Classifier: Programming Language :: Python :: 3.8 +Classifier: Programming Language :: Python :: 3.9 +Classifier: Programming Language :: Python :: 3.10 +Classifier: Programming Language :: Python :: 3.11 +Classifier: Programming Language :: Python :: 3.12 +Classifier: Programming Language :: Python :: 3.13 +Classifier: Programming Language :: Python :: Implementation :: CPython +Classifier: Programming Language :: Python :: Implementation :: PyPy +Classifier: Typing :: Typed +Project-URL: Documentation, https://packaging.pypa.io/ +Project-URL: Source, https://github.com/pypa/packaging + +packaging +========= + +.. start-intro + +Reusable core utilities for various Python Packaging +`interoperability specifications `_. + +This library provides utilities that implement the interoperability +specifications which have clearly one correct behaviour (eg: :pep:`440`) +or benefit greatly from having a single shared implementation (eg: :pep:`425`). + +.. end-intro + +The ``packaging`` project includes the following: version handling, specifiers, +markers, requirements, tags, utilities. + +Documentation +------------- + +The `documentation`_ provides information and the API for the following: + +- Version Handling +- Specifiers +- Markers +- Requirements +- Tags +- Utilities + +Installation +------------ + +Use ``pip`` to install these utilities:: + + pip install packaging + +The ``packaging`` library uses calendar-based versioning (``YY.N``). + +Discussion +---------- + +If you run into bugs, you can file them in our `issue tracker`_. + +You can also join ``#pypa`` on Freenode to ask questions or get involved. + + +.. _`documentation`: https://packaging.pypa.io/ +.. _`issue tracker`: https://github.com/pypa/packaging/issues + + +Code of Conduct +--------------- + +Everyone interacting in the packaging project's codebases, issue trackers, chat +rooms, and mailing lists is expected to follow the `PSF Code of Conduct`_. + +.. _PSF Code of Conduct: https://github.com/pypa/.github/blob/main/CODE_OF_CONDUCT.md + +Contributing +------------ + +The ``CONTRIBUTING.rst`` file outlines how to contribute to this project as +well as how to report a potential security issue. The documentation for this +project also covers information about `project development`_ and `security`_. + +.. _`project development`: https://packaging.pypa.io/en/latest/development/ +.. _`security`: https://packaging.pypa.io/en/latest/security/ + +Project History +--------------- + +Please review the ``CHANGELOG.rst`` file or the `Changelog documentation`_ for +recent changes and project history. + +.. _`Changelog documentation`: https://packaging.pypa.io/en/latest/changelog/ + diff --git a/setuptools/_vendor/packaging-24.2.dist-info/RECORD b/setuptools/_vendor/packaging-24.2.dist-info/RECORD new file mode 100644 index 0000000000..678aa5a501 --- /dev/null +++ b/setuptools/_vendor/packaging-24.2.dist-info/RECORD @@ -0,0 +1,25 @@ +packaging-24.2.dist-info/INSTALLER,sha256=5hhM4Q4mYTT9z6QB6PGpUAW81PGNFrYrdXMj4oM_6ak,2 +packaging-24.2.dist-info/LICENSE,sha256=ytHvW9NA1z4HS6YU0m996spceUDD2MNIUuZcSQlobEg,197 +packaging-24.2.dist-info/LICENSE.APACHE,sha256=DVQuDIgE45qn836wDaWnYhSdxoLXgpRRKH4RuTjpRZQ,10174 +packaging-24.2.dist-info/LICENSE.BSD,sha256=tw5-m3QvHMb5SLNMFqo5_-zpQZY2S8iP8NIYDwAo-sU,1344 +packaging-24.2.dist-info/METADATA,sha256=ohH86s6k5mIfQxY2TS0LcSfADeOFa4BiCC-bxZV-pNs,3204 +packaging-24.2.dist-info/RECORD,, +packaging-24.2.dist-info/REQUESTED,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0 +packaging-24.2.dist-info/WHEEL,sha256=CpUCUxeHQbRN5UGRQHYRJorO5Af-Qy_fHMctcQ8DSGI,82 +packaging/__init__.py,sha256=dk4Ta_vmdVJxYHDcfyhvQNw8V3PgSBomKNXqg-D2JDY,494 +packaging/_elffile.py,sha256=cflAQAkE25tzhYmq_aCi72QfbT_tn891tPzfpbeHOwE,3306 +packaging/_manylinux.py,sha256=vl5OCoz4kx80H5rwXKeXWjl9WNISGmr4ZgTpTP9lU9c,9612 +packaging/_musllinux.py,sha256=p9ZqNYiOItGee8KcZFeHF_YcdhVwGHdK6r-8lgixvGQ,2694 +packaging/_parser.py,sha256=s_TvTvDNK0NrM2QB3VKThdWFM4Nc0P6JnkObkl3MjpM,10236 +packaging/_structures.py,sha256=q3eVNmbWJGG_S0Dit_S3Ao8qQqz_5PYTXFAKBZe5yr4,1431 +packaging/_tokenizer.py,sha256=J6v5H7Jzvb-g81xp_2QACKwO7LxHQA6ikryMU7zXwN8,5273 +packaging/licenses/__init__.py,sha256=1x5M1nEYjcgwEbLt0dXwz2ukjr18DiCzC0sraQqJ-Ww,5715 +packaging/licenses/_spdx.py,sha256=oAm1ztPFwlsmCKe7lAAsv_OIOfS1cWDu9bNBkeu-2ns,48398 +packaging/markers.py,sha256=c89TNzB7ZdGYhkovm6PYmqGyHxXlYVaLW591PHUNKD8,10561 +packaging/metadata.py,sha256=YJibM7GYe4re8-0a3OlXmGS-XDgTEoO4tlBt2q25Bng,34762 +packaging/py.typed,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0 +packaging/requirements.py,sha256=gYyRSAdbrIyKDY66ugIDUQjRMvxkH2ALioTmX3tnL6o,2947 +packaging/specifiers.py,sha256=GG1wPNMcL0fMJO68vF53wKMdwnfehDcaI-r9NpTfilA,40074 +packaging/tags.py,sha256=CFqrJzAzc2XNGexerH__T-Y5Iwq7WbsYXsiLERLWxY0,21014 +packaging/utils.py,sha256=0F3Hh9OFuRgrhTgGZUl5K22Fv1YP2tZl1z_2gO6kJiA,5050 +packaging/version.py,sha256=olfyuk_DPbflNkJ4wBWetXQ17c74x3DB501degUv7DY,16676 diff --git a/setuptools/_vendor/packaging-24.2.dist-info/REQUESTED b/setuptools/_vendor/packaging-24.2.dist-info/REQUESTED new file mode 100644 index 0000000000..e69de29bb2 diff --git a/setuptools/_vendor/packaging-24.2.dist-info/WHEEL b/setuptools/_vendor/packaging-24.2.dist-info/WHEEL new file mode 100644 index 0000000000..e3c6feefa2 --- /dev/null +++ b/setuptools/_vendor/packaging-24.2.dist-info/WHEEL @@ -0,0 +1,4 @@ +Wheel-Version: 1.0 +Generator: flit 3.10.1 +Root-Is-Purelib: true +Tag: py3-none-any diff --git a/setuptools/_vendor/packaging/__init__.py b/setuptools/_vendor/packaging/__init__.py new file mode 100644 index 0000000000..d79f73c574 --- /dev/null +++ b/setuptools/_vendor/packaging/__init__.py @@ -0,0 +1,15 @@ +# This file is dual licensed under the terms of the Apache License, Version +# 2.0, and the BSD License. See the LICENSE file in the root of this repository +# for complete details. + +__title__ = "packaging" +__summary__ = "Core utilities for Python packages" +__uri__ = "https://github.com/pypa/packaging" + +__version__ = "24.2" + +__author__ = "Donald Stufft and individual contributors" +__email__ = "donald@stufft.io" + +__license__ = "BSD-2-Clause or Apache-2.0" +__copyright__ = f"2014 {__author__}" diff --git a/setuptools/_vendor/packaging/_elffile.py b/setuptools/_vendor/packaging/_elffile.py new file mode 100644 index 0000000000..25f4282cc2 --- /dev/null +++ b/setuptools/_vendor/packaging/_elffile.py @@ -0,0 +1,110 @@ +""" +ELF file parser. + +This provides a class ``ELFFile`` that parses an ELF executable in a similar +interface to ``ZipFile``. Only the read interface is implemented. + +Based on: https://gist.github.com/lyssdod/f51579ae8d93c8657a5564aefc2ffbca +ELF header: https://refspecs.linuxfoundation.org/elf/gabi4+/ch4.eheader.html +""" + +from __future__ import annotations + +import enum +import os +import struct +from typing import IO + + +class ELFInvalid(ValueError): + pass + + +class EIClass(enum.IntEnum): + C32 = 1 + C64 = 2 + + +class EIData(enum.IntEnum): + Lsb = 1 + Msb = 2 + + +class EMachine(enum.IntEnum): + I386 = 3 + S390 = 22 + Arm = 40 + X8664 = 62 + AArc64 = 183 + + +class ELFFile: + """ + Representation of an ELF executable. + """ + + def __init__(self, f: IO[bytes]) -> None: + self._f = f + + try: + ident = self._read("16B") + except struct.error as e: + raise ELFInvalid("unable to parse identification") from e + magic = bytes(ident[:4]) + if magic != b"\x7fELF": + raise ELFInvalid(f"invalid magic: {magic!r}") + + self.capacity = ident[4] # Format for program header (bitness). + self.encoding = ident[5] # Data structure encoding (endianness). + + try: + # e_fmt: Format for program header. + # p_fmt: Format for section header. + # p_idx: Indexes to find p_type, p_offset, and p_filesz. + e_fmt, self._p_fmt, self._p_idx = { + (1, 1): ("HHIIIIIHHH", ">IIIIIIII", (0, 1, 4)), # 32-bit MSB. + (2, 1): ("HHIQQQIHHH", ">IIQQQQQQ", (0, 2, 5)), # 64-bit MSB. + }[(self.capacity, self.encoding)] + except KeyError as e: + raise ELFInvalid( + f"unrecognized capacity ({self.capacity}) or " + f"encoding ({self.encoding})" + ) from e + + try: + ( + _, + self.machine, # Architecture type. + _, + _, + self._e_phoff, # Offset of program header. + _, + self.flags, # Processor-specific flags. + _, + self._e_phentsize, # Size of section. + self._e_phnum, # Number of sections. + ) = self._read(e_fmt) + except struct.error as e: + raise ELFInvalid("unable to parse machine and section information") from e + + def _read(self, fmt: str) -> tuple[int, ...]: + return struct.unpack(fmt, self._f.read(struct.calcsize(fmt))) + + @property + def interpreter(self) -> str | None: + """ + The path recorded in the ``PT_INTERP`` section header. + """ + for index in range(self._e_phnum): + self._f.seek(self._e_phoff + self._e_phentsize * index) + try: + data = self._read(self._p_fmt) + except struct.error: + continue + if data[self._p_idx[0]] != 3: # Not PT_INTERP. + continue + self._f.seek(data[self._p_idx[1]]) + return os.fsdecode(self._f.read(data[self._p_idx[2]])).strip("\0") + return None diff --git a/setuptools/_vendor/packaging/_manylinux.py b/setuptools/_vendor/packaging/_manylinux.py new file mode 100644 index 0000000000..61339a6fcc --- /dev/null +++ b/setuptools/_vendor/packaging/_manylinux.py @@ -0,0 +1,263 @@ +from __future__ import annotations + +import collections +import contextlib +import functools +import os +import re +import sys +import warnings +from typing import Generator, Iterator, NamedTuple, Sequence + +from ._elffile import EIClass, EIData, ELFFile, EMachine + +EF_ARM_ABIMASK = 0xFF000000 +EF_ARM_ABI_VER5 = 0x05000000 +EF_ARM_ABI_FLOAT_HARD = 0x00000400 + + +# `os.PathLike` not a generic type until Python 3.9, so sticking with `str` +# as the type for `path` until then. +@contextlib.contextmanager +def _parse_elf(path: str) -> Generator[ELFFile | None, None, None]: + try: + with open(path, "rb") as f: + yield ELFFile(f) + except (OSError, TypeError, ValueError): + yield None + + +def _is_linux_armhf(executable: str) -> bool: + # hard-float ABI can be detected from the ELF header of the running + # process + # https://static.docs.arm.com/ihi0044/g/aaelf32.pdf + with _parse_elf(executable) as f: + return ( + f is not None + and f.capacity == EIClass.C32 + and f.encoding == EIData.Lsb + and f.machine == EMachine.Arm + and f.flags & EF_ARM_ABIMASK == EF_ARM_ABI_VER5 + and f.flags & EF_ARM_ABI_FLOAT_HARD == EF_ARM_ABI_FLOAT_HARD + ) + + +def _is_linux_i686(executable: str) -> bool: + with _parse_elf(executable) as f: + return ( + f is not None + and f.capacity == EIClass.C32 + and f.encoding == EIData.Lsb + and f.machine == EMachine.I386 + ) + + +def _have_compatible_abi(executable: str, archs: Sequence[str]) -> bool: + if "armv7l" in archs: + return _is_linux_armhf(executable) + if "i686" in archs: + return _is_linux_i686(executable) + allowed_archs = { + "x86_64", + "aarch64", + "ppc64", + "ppc64le", + "s390x", + "loongarch64", + "riscv64", + } + return any(arch in allowed_archs for arch in archs) + + +# If glibc ever changes its major version, we need to know what the last +# minor version was, so we can build the complete list of all versions. +# For now, guess what the highest minor version might be, assume it will +# be 50 for testing. Once this actually happens, update the dictionary +# with the actual value. +_LAST_GLIBC_MINOR: dict[int, int] = collections.defaultdict(lambda: 50) + + +class _GLibCVersion(NamedTuple): + major: int + minor: int + + +def _glibc_version_string_confstr() -> str | None: + """ + Primary implementation of glibc_version_string using os.confstr. + """ + # os.confstr is quite a bit faster than ctypes.DLL. It's also less likely + # to be broken or missing. This strategy is used in the standard library + # platform module. + # https://github.com/python/cpython/blob/fcf1d003bf4f0100c/Lib/platform.py#L175-L183 + try: + # Should be a string like "glibc 2.17". + version_string: str | None = os.confstr("CS_GNU_LIBC_VERSION") + assert version_string is not None + _, version = version_string.rsplit() + except (AssertionError, AttributeError, OSError, ValueError): + # os.confstr() or CS_GNU_LIBC_VERSION not available (or a bad value)... + return None + return version + + +def _glibc_version_string_ctypes() -> str | None: + """ + Fallback implementation of glibc_version_string using ctypes. + """ + try: + import ctypes + except ImportError: + return None + + # ctypes.CDLL(None) internally calls dlopen(NULL), and as the dlopen + # manpage says, "If filename is NULL, then the returned handle is for the + # main program". This way we can let the linker do the work to figure out + # which libc our process is actually using. + # + # We must also handle the special case where the executable is not a + # dynamically linked executable. This can occur when using musl libc, + # for example. In this situation, dlopen() will error, leading to an + # OSError. Interestingly, at least in the case of musl, there is no + # errno set on the OSError. The single string argument used to construct + # OSError comes from libc itself and is therefore not portable to + # hard code here. In any case, failure to call dlopen() means we + # can proceed, so we bail on our attempt. + try: + process_namespace = ctypes.CDLL(None) + except OSError: + return None + + try: + gnu_get_libc_version = process_namespace.gnu_get_libc_version + except AttributeError: + # Symbol doesn't exist -> therefore, we are not linked to + # glibc. + return None + + # Call gnu_get_libc_version, which returns a string like "2.5" + gnu_get_libc_version.restype = ctypes.c_char_p + version_str: str = gnu_get_libc_version() + # py2 / py3 compatibility: + if not isinstance(version_str, str): + version_str = version_str.decode("ascii") + + return version_str + + +def _glibc_version_string() -> str | None: + """Returns glibc version string, or None if not using glibc.""" + return _glibc_version_string_confstr() or _glibc_version_string_ctypes() + + +def _parse_glibc_version(version_str: str) -> tuple[int, int]: + """Parse glibc version. + + We use a regexp instead of str.split because we want to discard any + random junk that might come after the minor version -- this might happen + in patched/forked versions of glibc (e.g. Linaro's version of glibc + uses version strings like "2.20-2014.11"). See gh-3588. + """ + m = re.match(r"(?P[0-9]+)\.(?P[0-9]+)", version_str) + if not m: + warnings.warn( + f"Expected glibc version with 2 components major.minor," + f" got: {version_str}", + RuntimeWarning, + stacklevel=2, + ) + return -1, -1 + return int(m.group("major")), int(m.group("minor")) + + +@functools.lru_cache +def _get_glibc_version() -> tuple[int, int]: + version_str = _glibc_version_string() + if version_str is None: + return (-1, -1) + return _parse_glibc_version(version_str) + + +# From PEP 513, PEP 600 +def _is_compatible(arch: str, version: _GLibCVersion) -> bool: + sys_glibc = _get_glibc_version() + if sys_glibc < version: + return False + # Check for presence of _manylinux module. + try: + import _manylinux + except ImportError: + return True + if hasattr(_manylinux, "manylinux_compatible"): + result = _manylinux.manylinux_compatible(version[0], version[1], arch) + if result is not None: + return bool(result) + return True + if version == _GLibCVersion(2, 5): + if hasattr(_manylinux, "manylinux1_compatible"): + return bool(_manylinux.manylinux1_compatible) + if version == _GLibCVersion(2, 12): + if hasattr(_manylinux, "manylinux2010_compatible"): + return bool(_manylinux.manylinux2010_compatible) + if version == _GLibCVersion(2, 17): + if hasattr(_manylinux, "manylinux2014_compatible"): + return bool(_manylinux.manylinux2014_compatible) + return True + + +_LEGACY_MANYLINUX_MAP = { + # CentOS 7 w/ glibc 2.17 (PEP 599) + (2, 17): "manylinux2014", + # CentOS 6 w/ glibc 2.12 (PEP 571) + (2, 12): "manylinux2010", + # CentOS 5 w/ glibc 2.5 (PEP 513) + (2, 5): "manylinux1", +} + + +def platform_tags(archs: Sequence[str]) -> Iterator[str]: + """Generate manylinux tags compatible to the current platform. + + :param archs: Sequence of compatible architectures. + The first one shall be the closest to the actual architecture and be the part of + platform tag after the ``linux_`` prefix, e.g. ``x86_64``. + The ``linux_`` prefix is assumed as a prerequisite for the current platform to + be manylinux-compatible. + + :returns: An iterator of compatible manylinux tags. + """ + if not _have_compatible_abi(sys.executable, archs): + return + # Oldest glibc to be supported regardless of architecture is (2, 17). + too_old_glibc2 = _GLibCVersion(2, 16) + if set(archs) & {"x86_64", "i686"}: + # On x86/i686 also oldest glibc to be supported is (2, 5). + too_old_glibc2 = _GLibCVersion(2, 4) + current_glibc = _GLibCVersion(*_get_glibc_version()) + glibc_max_list = [current_glibc] + # We can assume compatibility across glibc major versions. + # https://sourceware.org/bugzilla/show_bug.cgi?id=24636 + # + # Build a list of maximum glibc versions so that we can + # output the canonical list of all glibc from current_glibc + # down to too_old_glibc2, including all intermediary versions. + for glibc_major in range(current_glibc.major - 1, 1, -1): + glibc_minor = _LAST_GLIBC_MINOR[glibc_major] + glibc_max_list.append(_GLibCVersion(glibc_major, glibc_minor)) + for arch in archs: + for glibc_max in glibc_max_list: + if glibc_max.major == too_old_glibc2.major: + min_minor = too_old_glibc2.minor + else: + # For other glibc major versions oldest supported is (x, 0). + min_minor = -1 + for glibc_minor in range(glibc_max.minor, min_minor, -1): + glibc_version = _GLibCVersion(glibc_max.major, glibc_minor) + tag = "manylinux_{}_{}".format(*glibc_version) + if _is_compatible(arch, glibc_version): + yield f"{tag}_{arch}" + # Handle the legacy manylinux1, manylinux2010, manylinux2014 tags. + if glibc_version in _LEGACY_MANYLINUX_MAP: + legacy_tag = _LEGACY_MANYLINUX_MAP[glibc_version] + if _is_compatible(arch, glibc_version): + yield f"{legacy_tag}_{arch}" diff --git a/setuptools/_vendor/packaging/_musllinux.py b/setuptools/_vendor/packaging/_musllinux.py new file mode 100644 index 0000000000..d2bf30b563 --- /dev/null +++ b/setuptools/_vendor/packaging/_musllinux.py @@ -0,0 +1,85 @@ +"""PEP 656 support. + +This module implements logic to detect if the currently running Python is +linked against musl, and what musl version is used. +""" + +from __future__ import annotations + +import functools +import re +import subprocess +import sys +from typing import Iterator, NamedTuple, Sequence + +from ._elffile import ELFFile + + +class _MuslVersion(NamedTuple): + major: int + minor: int + + +def _parse_musl_version(output: str) -> _MuslVersion | None: + lines = [n for n in (n.strip() for n in output.splitlines()) if n] + if len(lines) < 2 or lines[0][:4] != "musl": + return None + m = re.match(r"Version (\d+)\.(\d+)", lines[1]) + if not m: + return None + return _MuslVersion(major=int(m.group(1)), minor=int(m.group(2))) + + +@functools.lru_cache +def _get_musl_version(executable: str) -> _MuslVersion | None: + """Detect currently-running musl runtime version. + + This is done by checking the specified executable's dynamic linking + information, and invoking the loader to parse its output for a version + string. If the loader is musl, the output would be something like:: + + musl libc (x86_64) + Version 1.2.2 + Dynamic Program Loader + """ + try: + with open(executable, "rb") as f: + ld = ELFFile(f).interpreter + except (OSError, TypeError, ValueError): + return None + if ld is None or "musl" not in ld: + return None + proc = subprocess.run([ld], stderr=subprocess.PIPE, text=True) + return _parse_musl_version(proc.stderr) + + +def platform_tags(archs: Sequence[str]) -> Iterator[str]: + """Generate musllinux tags compatible to the current platform. + + :param archs: Sequence of compatible architectures. + The first one shall be the closest to the actual architecture and be the part of + platform tag after the ``linux_`` prefix, e.g. ``x86_64``. + The ``linux_`` prefix is assumed as a prerequisite for the current platform to + be musllinux-compatible. + + :returns: An iterator of compatible musllinux tags. + """ + sys_musl = _get_musl_version(sys.executable) + if sys_musl is None: # Python not dynamically linked against musl. + return + for arch in archs: + for minor in range(sys_musl.minor, -1, -1): + yield f"musllinux_{sys_musl.major}_{minor}_{arch}" + + +if __name__ == "__main__": # pragma: no cover + import sysconfig + + plat = sysconfig.get_platform() + assert plat.startswith("linux-"), "not linux" + + print("plat:", plat) + print("musl:", _get_musl_version(sys.executable)) + print("tags:", end=" ") + for t in platform_tags(re.sub(r"[.-]", "_", plat.split("-", 1)[-1])): + print(t, end="\n ") diff --git a/setuptools/_vendor/packaging/_parser.py b/setuptools/_vendor/packaging/_parser.py new file mode 100644 index 0000000000..c1238c06ea --- /dev/null +++ b/setuptools/_vendor/packaging/_parser.py @@ -0,0 +1,354 @@ +"""Handwritten parser of dependency specifiers. + +The docstring for each __parse_* function contains EBNF-inspired grammar representing +the implementation. +""" + +from __future__ import annotations + +import ast +from typing import NamedTuple, Sequence, Tuple, Union + +from ._tokenizer import DEFAULT_RULES, Tokenizer + + +class Node: + def __init__(self, value: str) -> None: + self.value = value + + def __str__(self) -> str: + return self.value + + def __repr__(self) -> str: + return f"<{self.__class__.__name__}('{self}')>" + + def serialize(self) -> str: + raise NotImplementedError + + +class Variable(Node): + def serialize(self) -> str: + return str(self) + + +class Value(Node): + def serialize(self) -> str: + return f'"{self}"' + + +class Op(Node): + def serialize(self) -> str: + return str(self) + + +MarkerVar = Union[Variable, Value] +MarkerItem = Tuple[MarkerVar, Op, MarkerVar] +MarkerAtom = Union[MarkerItem, Sequence["MarkerAtom"]] +MarkerList = Sequence[Union["MarkerList", MarkerAtom, str]] + + +class ParsedRequirement(NamedTuple): + name: str + url: str + extras: list[str] + specifier: str + marker: MarkerList | None + + +# -------------------------------------------------------------------------------------- +# Recursive descent parser for dependency specifier +# -------------------------------------------------------------------------------------- +def parse_requirement(source: str) -> ParsedRequirement: + return _parse_requirement(Tokenizer(source, rules=DEFAULT_RULES)) + + +def _parse_requirement(tokenizer: Tokenizer) -> ParsedRequirement: + """ + requirement = WS? IDENTIFIER WS? extras WS? requirement_details + """ + tokenizer.consume("WS") + + name_token = tokenizer.expect( + "IDENTIFIER", expected="package name at the start of dependency specifier" + ) + name = name_token.text + tokenizer.consume("WS") + + extras = _parse_extras(tokenizer) + tokenizer.consume("WS") + + url, specifier, marker = _parse_requirement_details(tokenizer) + tokenizer.expect("END", expected="end of dependency specifier") + + return ParsedRequirement(name, url, extras, specifier, marker) + + +def _parse_requirement_details( + tokenizer: Tokenizer, +) -> tuple[str, str, MarkerList | None]: + """ + requirement_details = AT URL (WS requirement_marker?)? + | specifier WS? (requirement_marker)? + """ + + specifier = "" + url = "" + marker = None + + if tokenizer.check("AT"): + tokenizer.read() + tokenizer.consume("WS") + + url_start = tokenizer.position + url = tokenizer.expect("URL", expected="URL after @").text + if tokenizer.check("END", peek=True): + return (url, specifier, marker) + + tokenizer.expect("WS", expected="whitespace after URL") + + # The input might end after whitespace. + if tokenizer.check("END", peek=True): + return (url, specifier, marker) + + marker = _parse_requirement_marker( + tokenizer, span_start=url_start, after="URL and whitespace" + ) + else: + specifier_start = tokenizer.position + specifier = _parse_specifier(tokenizer) + tokenizer.consume("WS") + + if tokenizer.check("END", peek=True): + return (url, specifier, marker) + + marker = _parse_requirement_marker( + tokenizer, + span_start=specifier_start, + after=( + "version specifier" + if specifier + else "name and no valid version specifier" + ), + ) + + return (url, specifier, marker) + + +def _parse_requirement_marker( + tokenizer: Tokenizer, *, span_start: int, after: str +) -> MarkerList: + """ + requirement_marker = SEMICOLON marker WS? + """ + + if not tokenizer.check("SEMICOLON"): + tokenizer.raise_syntax_error( + f"Expected end or semicolon (after {after})", + span_start=span_start, + ) + tokenizer.read() + + marker = _parse_marker(tokenizer) + tokenizer.consume("WS") + + return marker + + +def _parse_extras(tokenizer: Tokenizer) -> list[str]: + """ + extras = (LEFT_BRACKET wsp* extras_list? wsp* RIGHT_BRACKET)? + """ + if not tokenizer.check("LEFT_BRACKET", peek=True): + return [] + + with tokenizer.enclosing_tokens( + "LEFT_BRACKET", + "RIGHT_BRACKET", + around="extras", + ): + tokenizer.consume("WS") + extras = _parse_extras_list(tokenizer) + tokenizer.consume("WS") + + return extras + + +def _parse_extras_list(tokenizer: Tokenizer) -> list[str]: + """ + extras_list = identifier (wsp* ',' wsp* identifier)* + """ + extras: list[str] = [] + + if not tokenizer.check("IDENTIFIER"): + return extras + + extras.append(tokenizer.read().text) + + while True: + tokenizer.consume("WS") + if tokenizer.check("IDENTIFIER", peek=True): + tokenizer.raise_syntax_error("Expected comma between extra names") + elif not tokenizer.check("COMMA"): + break + + tokenizer.read() + tokenizer.consume("WS") + + extra_token = tokenizer.expect("IDENTIFIER", expected="extra name after comma") + extras.append(extra_token.text) + + return extras + + +def _parse_specifier(tokenizer: Tokenizer) -> str: + """ + specifier = LEFT_PARENTHESIS WS? version_many WS? RIGHT_PARENTHESIS + | WS? version_many WS? + """ + with tokenizer.enclosing_tokens( + "LEFT_PARENTHESIS", + "RIGHT_PARENTHESIS", + around="version specifier", + ): + tokenizer.consume("WS") + parsed_specifiers = _parse_version_many(tokenizer) + tokenizer.consume("WS") + + return parsed_specifiers + + +def _parse_version_many(tokenizer: Tokenizer) -> str: + """ + version_many = (SPECIFIER (WS? COMMA WS? SPECIFIER)*)? + """ + parsed_specifiers = "" + while tokenizer.check("SPECIFIER"): + span_start = tokenizer.position + parsed_specifiers += tokenizer.read().text + if tokenizer.check("VERSION_PREFIX_TRAIL", peek=True): + tokenizer.raise_syntax_error( + ".* suffix can only be used with `==` or `!=` operators", + span_start=span_start, + span_end=tokenizer.position + 1, + ) + if tokenizer.check("VERSION_LOCAL_LABEL_TRAIL", peek=True): + tokenizer.raise_syntax_error( + "Local version label can only be used with `==` or `!=` operators", + span_start=span_start, + span_end=tokenizer.position, + ) + tokenizer.consume("WS") + if not tokenizer.check("COMMA"): + break + parsed_specifiers += tokenizer.read().text + tokenizer.consume("WS") + + return parsed_specifiers + + +# -------------------------------------------------------------------------------------- +# Recursive descent parser for marker expression +# -------------------------------------------------------------------------------------- +def parse_marker(source: str) -> MarkerList: + return _parse_full_marker(Tokenizer(source, rules=DEFAULT_RULES)) + + +def _parse_full_marker(tokenizer: Tokenizer) -> MarkerList: + retval = _parse_marker(tokenizer) + tokenizer.expect("END", expected="end of marker expression") + return retval + + +def _parse_marker(tokenizer: Tokenizer) -> MarkerList: + """ + marker = marker_atom (BOOLOP marker_atom)+ + """ + expression = [_parse_marker_atom(tokenizer)] + while tokenizer.check("BOOLOP"): + token = tokenizer.read() + expr_right = _parse_marker_atom(tokenizer) + expression.extend((token.text, expr_right)) + return expression + + +def _parse_marker_atom(tokenizer: Tokenizer) -> MarkerAtom: + """ + marker_atom = WS? LEFT_PARENTHESIS WS? marker WS? RIGHT_PARENTHESIS WS? + | WS? marker_item WS? + """ + + tokenizer.consume("WS") + if tokenizer.check("LEFT_PARENTHESIS", peek=True): + with tokenizer.enclosing_tokens( + "LEFT_PARENTHESIS", + "RIGHT_PARENTHESIS", + around="marker expression", + ): + tokenizer.consume("WS") + marker: MarkerAtom = _parse_marker(tokenizer) + tokenizer.consume("WS") + else: + marker = _parse_marker_item(tokenizer) + tokenizer.consume("WS") + return marker + + +def _parse_marker_item(tokenizer: Tokenizer) -> MarkerItem: + """ + marker_item = WS? marker_var WS? marker_op WS? marker_var WS? + """ + tokenizer.consume("WS") + marker_var_left = _parse_marker_var(tokenizer) + tokenizer.consume("WS") + marker_op = _parse_marker_op(tokenizer) + tokenizer.consume("WS") + marker_var_right = _parse_marker_var(tokenizer) + tokenizer.consume("WS") + return (marker_var_left, marker_op, marker_var_right) + + +def _parse_marker_var(tokenizer: Tokenizer) -> MarkerVar: + """ + marker_var = VARIABLE | QUOTED_STRING + """ + if tokenizer.check("VARIABLE"): + return process_env_var(tokenizer.read().text.replace(".", "_")) + elif tokenizer.check("QUOTED_STRING"): + return process_python_str(tokenizer.read().text) + else: + tokenizer.raise_syntax_error( + message="Expected a marker variable or quoted string" + ) + + +def process_env_var(env_var: str) -> Variable: + if env_var in ("platform_python_implementation", "python_implementation"): + return Variable("platform_python_implementation") + else: + return Variable(env_var) + + +def process_python_str(python_str: str) -> Value: + value = ast.literal_eval(python_str) + return Value(str(value)) + + +def _parse_marker_op(tokenizer: Tokenizer) -> Op: + """ + marker_op = IN | NOT IN | OP + """ + if tokenizer.check("IN"): + tokenizer.read() + return Op("in") + elif tokenizer.check("NOT"): + tokenizer.read() + tokenizer.expect("WS", expected="whitespace after 'not'") + tokenizer.expect("IN", expected="'in' after 'not'") + return Op("not in") + elif tokenizer.check("OP"): + return Op(tokenizer.read().text) + else: + return tokenizer.raise_syntax_error( + "Expected marker operator, one of " + "<=, <, !=, ==, >=, >, ~=, ===, in, not in" + ) diff --git a/setuptools/_vendor/packaging/_structures.py b/setuptools/_vendor/packaging/_structures.py new file mode 100644 index 0000000000..90a6465f96 --- /dev/null +++ b/setuptools/_vendor/packaging/_structures.py @@ -0,0 +1,61 @@ +# This file is dual licensed under the terms of the Apache License, Version +# 2.0, and the BSD License. See the LICENSE file in the root of this repository +# for complete details. + + +class InfinityType: + def __repr__(self) -> str: + return "Infinity" + + def __hash__(self) -> int: + return hash(repr(self)) + + def __lt__(self, other: object) -> bool: + return False + + def __le__(self, other: object) -> bool: + return False + + def __eq__(self, other: object) -> bool: + return isinstance(other, self.__class__) + + def __gt__(self, other: object) -> bool: + return True + + def __ge__(self, other: object) -> bool: + return True + + def __neg__(self: object) -> "NegativeInfinityType": + return NegativeInfinity + + +Infinity = InfinityType() + + +class NegativeInfinityType: + def __repr__(self) -> str: + return "-Infinity" + + def __hash__(self) -> int: + return hash(repr(self)) + + def __lt__(self, other: object) -> bool: + return True + + def __le__(self, other: object) -> bool: + return True + + def __eq__(self, other: object) -> bool: + return isinstance(other, self.__class__) + + def __gt__(self, other: object) -> bool: + return False + + def __ge__(self, other: object) -> bool: + return False + + def __neg__(self: object) -> InfinityType: + return Infinity + + +NegativeInfinity = NegativeInfinityType() diff --git a/setuptools/_vendor/packaging/_tokenizer.py b/setuptools/_vendor/packaging/_tokenizer.py new file mode 100644 index 0000000000..89d041605c --- /dev/null +++ b/setuptools/_vendor/packaging/_tokenizer.py @@ -0,0 +1,194 @@ +from __future__ import annotations + +import contextlib +import re +from dataclasses import dataclass +from typing import Iterator, NoReturn + +from .specifiers import Specifier + + +@dataclass +class Token: + name: str + text: str + position: int + + +class ParserSyntaxError(Exception): + """The provided source text could not be parsed correctly.""" + + def __init__( + self, + message: str, + *, + source: str, + span: tuple[int, int], + ) -> None: + self.span = span + self.message = message + self.source = source + + super().__init__() + + def __str__(self) -> str: + marker = " " * self.span[0] + "~" * (self.span[1] - self.span[0]) + "^" + return "\n ".join([self.message, self.source, marker]) + + +DEFAULT_RULES: dict[str, str | re.Pattern[str]] = { + "LEFT_PARENTHESIS": r"\(", + "RIGHT_PARENTHESIS": r"\)", + "LEFT_BRACKET": r"\[", + "RIGHT_BRACKET": r"\]", + "SEMICOLON": r";", + "COMMA": r",", + "QUOTED_STRING": re.compile( + r""" + ( + ('[^']*') + | + ("[^"]*") + ) + """, + re.VERBOSE, + ), + "OP": r"(===|==|~=|!=|<=|>=|<|>)", + "BOOLOP": r"\b(or|and)\b", + "IN": r"\bin\b", + "NOT": r"\bnot\b", + "VARIABLE": re.compile( + r""" + \b( + python_version + |python_full_version + |os[._]name + |sys[._]platform + |platform_(release|system) + |platform[._](version|machine|python_implementation) + |python_implementation + |implementation_(name|version) + |extra + )\b + """, + re.VERBOSE, + ), + "SPECIFIER": re.compile( + Specifier._operator_regex_str + Specifier._version_regex_str, + re.VERBOSE | re.IGNORECASE, + ), + "AT": r"\@", + "URL": r"[^ \t]+", + "IDENTIFIER": r"\b[a-zA-Z0-9][a-zA-Z0-9._-]*\b", + "VERSION_PREFIX_TRAIL": r"\.\*", + "VERSION_LOCAL_LABEL_TRAIL": r"\+[a-z0-9]+(?:[-_\.][a-z0-9]+)*", + "WS": r"[ \t]+", + "END": r"$", +} + + +class Tokenizer: + """Context-sensitive token parsing. + + Provides methods to examine the input stream to check whether the next token + matches. + """ + + def __init__( + self, + source: str, + *, + rules: dict[str, str | re.Pattern[str]], + ) -> None: + self.source = source + self.rules: dict[str, re.Pattern[str]] = { + name: re.compile(pattern) for name, pattern in rules.items() + } + self.next_token: Token | None = None + self.position = 0 + + def consume(self, name: str) -> None: + """Move beyond provided token name, if at current position.""" + if self.check(name): + self.read() + + def check(self, name: str, *, peek: bool = False) -> bool: + """Check whether the next token has the provided name. + + By default, if the check succeeds, the token *must* be read before + another check. If `peek` is set to `True`, the token is not loaded and + would need to be checked again. + """ + assert ( + self.next_token is None + ), f"Cannot check for {name!r}, already have {self.next_token!r}" + assert name in self.rules, f"Unknown token name: {name!r}" + + expression = self.rules[name] + + match = expression.match(self.source, self.position) + if match is None: + return False + if not peek: + self.next_token = Token(name, match[0], self.position) + return True + + def expect(self, name: str, *, expected: str) -> Token: + """Expect a certain token name next, failing with a syntax error otherwise. + + The token is *not* read. + """ + if not self.check(name): + raise self.raise_syntax_error(f"Expected {expected}") + return self.read() + + def read(self) -> Token: + """Consume the next token and return it.""" + token = self.next_token + assert token is not None + + self.position += len(token.text) + self.next_token = None + + return token + + def raise_syntax_error( + self, + message: str, + *, + span_start: int | None = None, + span_end: int | None = None, + ) -> NoReturn: + """Raise ParserSyntaxError at the given position.""" + span = ( + self.position if span_start is None else span_start, + self.position if span_end is None else span_end, + ) + raise ParserSyntaxError( + message, + source=self.source, + span=span, + ) + + @contextlib.contextmanager + def enclosing_tokens( + self, open_token: str, close_token: str, *, around: str + ) -> Iterator[None]: + if self.check(open_token): + open_position = self.position + self.read() + else: + open_position = None + + yield + + if open_position is None: + return + + if not self.check(close_token): + self.raise_syntax_error( + f"Expected matching {close_token} for {open_token}, after {around}", + span_start=open_position, + ) + + self.read() diff --git a/setuptools/_vendor/packaging/licenses/__init__.py b/setuptools/_vendor/packaging/licenses/__init__.py new file mode 100644 index 0000000000..569156d6ca --- /dev/null +++ b/setuptools/_vendor/packaging/licenses/__init__.py @@ -0,0 +1,145 @@ +####################################################################################### +# +# Adapted from: +# https://github.com/pypa/hatch/blob/5352e44/backend/src/hatchling/licenses/parse.py +# +# MIT License +# +# Copyright (c) 2017-present Ofek Lev +# +# Permission is hereby granted, free of charge, to any person obtaining a copy of this +# software and associated documentation files (the "Software"), to deal in the Software +# without restriction, including without limitation the rights to use, copy, modify, +# merge, publish, distribute, sublicense, and/or sell copies of the Software, and to +# permit persons to whom the Software is furnished to do so, subject to the following +# conditions: +# +# The above copyright notice and this permission notice shall be included in all copies +# or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, +# INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A +# PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT +# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF +# CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE +# OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +# +# +# With additional allowance of arbitrary `LicenseRef-` identifiers, not just +# `LicenseRef-Public-Domain` and `LicenseRef-Proprietary`. +# +####################################################################################### +from __future__ import annotations + +import re +from typing import NewType, cast + +from packaging.licenses._spdx import EXCEPTIONS, LICENSES + +__all__ = [ + "NormalizedLicenseExpression", + "InvalidLicenseExpression", + "canonicalize_license_expression", +] + +license_ref_allowed = re.compile("^[A-Za-z0-9.-]*$") + +NormalizedLicenseExpression = NewType("NormalizedLicenseExpression", str) + + +class InvalidLicenseExpression(ValueError): + """Raised when a license-expression string is invalid + + >>> canonicalize_license_expression("invalid") + Traceback (most recent call last): + ... + packaging.licenses.InvalidLicenseExpression: Invalid license expression: 'invalid' + """ + + +def canonicalize_license_expression( + raw_license_expression: str, +) -> NormalizedLicenseExpression: + if not raw_license_expression: + message = f"Invalid license expression: {raw_license_expression!r}" + raise InvalidLicenseExpression(message) + + # Pad any parentheses so tokenization can be achieved by merely splitting on + # whitespace. + license_expression = raw_license_expression.replace("(", " ( ").replace(")", " ) ") + licenseref_prefix = "LicenseRef-" + license_refs = { + ref.lower(): "LicenseRef-" + ref[len(licenseref_prefix) :] + for ref in license_expression.split() + if ref.lower().startswith(licenseref_prefix.lower()) + } + + # Normalize to lower case so we can look up licenses/exceptions + # and so boolean operators are Python-compatible. + license_expression = license_expression.lower() + + tokens = license_expression.split() + + # Rather than implementing boolean logic, we create an expression that Python can + # parse. Everything that is not involved with the grammar itself is treated as + # `False` and the expression should evaluate as such. + python_tokens = [] + for token in tokens: + if token not in {"or", "and", "with", "(", ")"}: + python_tokens.append("False") + elif token == "with": + python_tokens.append("or") + elif token == "(" and python_tokens and python_tokens[-1] not in {"or", "and"}: + message = f"Invalid license expression: {raw_license_expression!r}" + raise InvalidLicenseExpression(message) + else: + python_tokens.append(token) + + python_expression = " ".join(python_tokens) + try: + invalid = eval(python_expression, globals(), locals()) + except Exception: + invalid = True + + if invalid is not False: + message = f"Invalid license expression: {raw_license_expression!r}" + raise InvalidLicenseExpression(message) from None + + # Take a final pass to check for unknown licenses/exceptions. + normalized_tokens = [] + for token in tokens: + if token in {"or", "and", "with", "(", ")"}: + normalized_tokens.append(token.upper()) + continue + + if normalized_tokens and normalized_tokens[-1] == "WITH": + if token not in EXCEPTIONS: + message = f"Unknown license exception: {token!r}" + raise InvalidLicenseExpression(message) + + normalized_tokens.append(EXCEPTIONS[token]["id"]) + else: + if token.endswith("+"): + final_token = token[:-1] + suffix = "+" + else: + final_token = token + suffix = "" + + if final_token.startswith("licenseref-"): + if not license_ref_allowed.match(final_token): + message = f"Invalid licenseref: {final_token!r}" + raise InvalidLicenseExpression(message) + normalized_tokens.append(license_refs[final_token] + suffix) + else: + if final_token not in LICENSES: + message = f"Unknown license: {final_token!r}" + raise InvalidLicenseExpression(message) + normalized_tokens.append(LICENSES[final_token]["id"] + suffix) + + normalized_expression = " ".join(normalized_tokens) + + return cast( + NormalizedLicenseExpression, + normalized_expression.replace("( ", "(").replace(" )", ")"), + ) diff --git a/setuptools/_vendor/packaging/licenses/_spdx.py b/setuptools/_vendor/packaging/licenses/_spdx.py new file mode 100644 index 0000000000..eac22276a3 --- /dev/null +++ b/setuptools/_vendor/packaging/licenses/_spdx.py @@ -0,0 +1,759 @@ + +from __future__ import annotations + +from typing import TypedDict + +class SPDXLicense(TypedDict): + id: str + deprecated: bool + +class SPDXException(TypedDict): + id: str + deprecated: bool + + +VERSION = '3.25.0' + +LICENSES: dict[str, SPDXLicense] = { + '0bsd': {'id': '0BSD', 'deprecated': False}, + '3d-slicer-1.0': {'id': '3D-Slicer-1.0', 'deprecated': False}, + 'aal': {'id': 'AAL', 'deprecated': False}, + 'abstyles': {'id': 'Abstyles', 'deprecated': False}, + 'adacore-doc': {'id': 'AdaCore-doc', 'deprecated': False}, + 'adobe-2006': {'id': 'Adobe-2006', 'deprecated': False}, + 'adobe-display-postscript': {'id': 'Adobe-Display-PostScript', 'deprecated': False}, + 'adobe-glyph': {'id': 'Adobe-Glyph', 'deprecated': False}, + 'adobe-utopia': {'id': 'Adobe-Utopia', 'deprecated': False}, + 'adsl': {'id': 'ADSL', 'deprecated': False}, + 'afl-1.1': {'id': 'AFL-1.1', 'deprecated': False}, + 'afl-1.2': {'id': 'AFL-1.2', 'deprecated': False}, + 'afl-2.0': {'id': 'AFL-2.0', 'deprecated': False}, + 'afl-2.1': {'id': 'AFL-2.1', 'deprecated': False}, + 'afl-3.0': {'id': 'AFL-3.0', 'deprecated': False}, + 'afmparse': {'id': 'Afmparse', 'deprecated': False}, + 'agpl-1.0': {'id': 'AGPL-1.0', 'deprecated': True}, + 'agpl-1.0-only': {'id': 'AGPL-1.0-only', 'deprecated': False}, + 'agpl-1.0-or-later': {'id': 'AGPL-1.0-or-later', 'deprecated': False}, + 'agpl-3.0': {'id': 'AGPL-3.0', 'deprecated': True}, + 'agpl-3.0-only': {'id': 'AGPL-3.0-only', 'deprecated': False}, + 'agpl-3.0-or-later': {'id': 'AGPL-3.0-or-later', 'deprecated': False}, + 'aladdin': {'id': 'Aladdin', 'deprecated': False}, + 'amd-newlib': {'id': 'AMD-newlib', 'deprecated': False}, + 'amdplpa': {'id': 'AMDPLPA', 'deprecated': False}, + 'aml': {'id': 'AML', 'deprecated': False}, + 'aml-glslang': {'id': 'AML-glslang', 'deprecated': False}, + 'ampas': {'id': 'AMPAS', 'deprecated': False}, + 'antlr-pd': {'id': 'ANTLR-PD', 'deprecated': False}, + 'antlr-pd-fallback': {'id': 'ANTLR-PD-fallback', 'deprecated': False}, + 'any-osi': {'id': 'any-OSI', 'deprecated': False}, + 'apache-1.0': {'id': 'Apache-1.0', 'deprecated': False}, + 'apache-1.1': {'id': 'Apache-1.1', 'deprecated': False}, + 'apache-2.0': {'id': 'Apache-2.0', 'deprecated': False}, + 'apafml': {'id': 'APAFML', 'deprecated': False}, + 'apl-1.0': {'id': 'APL-1.0', 'deprecated': False}, + 'app-s2p': {'id': 'App-s2p', 'deprecated': False}, + 'apsl-1.0': {'id': 'APSL-1.0', 'deprecated': False}, + 'apsl-1.1': {'id': 'APSL-1.1', 'deprecated': False}, + 'apsl-1.2': {'id': 'APSL-1.2', 'deprecated': False}, + 'apsl-2.0': {'id': 'APSL-2.0', 'deprecated': False}, + 'arphic-1999': {'id': 'Arphic-1999', 'deprecated': False}, + 'artistic-1.0': {'id': 'Artistic-1.0', 'deprecated': False}, + 'artistic-1.0-cl8': {'id': 'Artistic-1.0-cl8', 'deprecated': False}, + 'artistic-1.0-perl': {'id': 'Artistic-1.0-Perl', 'deprecated': False}, + 'artistic-2.0': {'id': 'Artistic-2.0', 'deprecated': False}, + 'aswf-digital-assets-1.0': {'id': 'ASWF-Digital-Assets-1.0', 'deprecated': False}, + 'aswf-digital-assets-1.1': {'id': 'ASWF-Digital-Assets-1.1', 'deprecated': False}, + 'baekmuk': {'id': 'Baekmuk', 'deprecated': False}, + 'bahyph': {'id': 'Bahyph', 'deprecated': False}, + 'barr': {'id': 'Barr', 'deprecated': False}, + 'bcrypt-solar-designer': {'id': 'bcrypt-Solar-Designer', 'deprecated': False}, + 'beerware': {'id': 'Beerware', 'deprecated': False}, + 'bitstream-charter': {'id': 'Bitstream-Charter', 'deprecated': False}, + 'bitstream-vera': {'id': 'Bitstream-Vera', 'deprecated': False}, + 'bittorrent-1.0': {'id': 'BitTorrent-1.0', 'deprecated': False}, + 'bittorrent-1.1': {'id': 'BitTorrent-1.1', 'deprecated': False}, + 'blessing': {'id': 'blessing', 'deprecated': False}, + 'blueoak-1.0.0': {'id': 'BlueOak-1.0.0', 'deprecated': False}, + 'boehm-gc': {'id': 'Boehm-GC', 'deprecated': False}, + 'borceux': {'id': 'Borceux', 'deprecated': False}, + 'brian-gladman-2-clause': {'id': 'Brian-Gladman-2-Clause', 'deprecated': False}, + 'brian-gladman-3-clause': {'id': 'Brian-Gladman-3-Clause', 'deprecated': False}, + 'bsd-1-clause': {'id': 'BSD-1-Clause', 'deprecated': False}, + 'bsd-2-clause': {'id': 'BSD-2-Clause', 'deprecated': False}, + 'bsd-2-clause-darwin': {'id': 'BSD-2-Clause-Darwin', 'deprecated': False}, + 'bsd-2-clause-first-lines': {'id': 'BSD-2-Clause-first-lines', 'deprecated': False}, + 'bsd-2-clause-freebsd': {'id': 'BSD-2-Clause-FreeBSD', 'deprecated': True}, + 'bsd-2-clause-netbsd': {'id': 'BSD-2-Clause-NetBSD', 'deprecated': True}, + 'bsd-2-clause-patent': {'id': 'BSD-2-Clause-Patent', 'deprecated': False}, + 'bsd-2-clause-views': {'id': 'BSD-2-Clause-Views', 'deprecated': False}, + 'bsd-3-clause': {'id': 'BSD-3-Clause', 'deprecated': False}, + 'bsd-3-clause-acpica': {'id': 'BSD-3-Clause-acpica', 'deprecated': False}, + 'bsd-3-clause-attribution': {'id': 'BSD-3-Clause-Attribution', 'deprecated': False}, + 'bsd-3-clause-clear': {'id': 'BSD-3-Clause-Clear', 'deprecated': False}, + 'bsd-3-clause-flex': {'id': 'BSD-3-Clause-flex', 'deprecated': False}, + 'bsd-3-clause-hp': {'id': 'BSD-3-Clause-HP', 'deprecated': False}, + 'bsd-3-clause-lbnl': {'id': 'BSD-3-Clause-LBNL', 'deprecated': False}, + 'bsd-3-clause-modification': {'id': 'BSD-3-Clause-Modification', 'deprecated': False}, + 'bsd-3-clause-no-military-license': {'id': 'BSD-3-Clause-No-Military-License', 'deprecated': False}, + 'bsd-3-clause-no-nuclear-license': {'id': 'BSD-3-Clause-No-Nuclear-License', 'deprecated': False}, + 'bsd-3-clause-no-nuclear-license-2014': {'id': 'BSD-3-Clause-No-Nuclear-License-2014', 'deprecated': False}, + 'bsd-3-clause-no-nuclear-warranty': {'id': 'BSD-3-Clause-No-Nuclear-Warranty', 'deprecated': False}, + 'bsd-3-clause-open-mpi': {'id': 'BSD-3-Clause-Open-MPI', 'deprecated': False}, + 'bsd-3-clause-sun': {'id': 'BSD-3-Clause-Sun', 'deprecated': False}, + 'bsd-4-clause': {'id': 'BSD-4-Clause', 'deprecated': False}, + 'bsd-4-clause-shortened': {'id': 'BSD-4-Clause-Shortened', 'deprecated': False}, + 'bsd-4-clause-uc': {'id': 'BSD-4-Clause-UC', 'deprecated': False}, + 'bsd-4.3reno': {'id': 'BSD-4.3RENO', 'deprecated': False}, + 'bsd-4.3tahoe': {'id': 'BSD-4.3TAHOE', 'deprecated': False}, + 'bsd-advertising-acknowledgement': {'id': 'BSD-Advertising-Acknowledgement', 'deprecated': False}, + 'bsd-attribution-hpnd-disclaimer': {'id': 'BSD-Attribution-HPND-disclaimer', 'deprecated': False}, + 'bsd-inferno-nettverk': {'id': 'BSD-Inferno-Nettverk', 'deprecated': False}, + 'bsd-protection': {'id': 'BSD-Protection', 'deprecated': False}, + 'bsd-source-beginning-file': {'id': 'BSD-Source-beginning-file', 'deprecated': False}, + 'bsd-source-code': {'id': 'BSD-Source-Code', 'deprecated': False}, + 'bsd-systemics': {'id': 'BSD-Systemics', 'deprecated': False}, + 'bsd-systemics-w3works': {'id': 'BSD-Systemics-W3Works', 'deprecated': False}, + 'bsl-1.0': {'id': 'BSL-1.0', 'deprecated': False}, + 'busl-1.1': {'id': 'BUSL-1.1', 'deprecated': False}, + 'bzip2-1.0.5': {'id': 'bzip2-1.0.5', 'deprecated': True}, + 'bzip2-1.0.6': {'id': 'bzip2-1.0.6', 'deprecated': False}, + 'c-uda-1.0': {'id': 'C-UDA-1.0', 'deprecated': False}, + 'cal-1.0': {'id': 'CAL-1.0', 'deprecated': False}, + 'cal-1.0-combined-work-exception': {'id': 'CAL-1.0-Combined-Work-Exception', 'deprecated': False}, + 'caldera': {'id': 'Caldera', 'deprecated': False}, + 'caldera-no-preamble': {'id': 'Caldera-no-preamble', 'deprecated': False}, + 'catharon': {'id': 'Catharon', 'deprecated': False}, + 'catosl-1.1': {'id': 'CATOSL-1.1', 'deprecated': False}, + 'cc-by-1.0': {'id': 'CC-BY-1.0', 'deprecated': False}, + 'cc-by-2.0': {'id': 'CC-BY-2.0', 'deprecated': False}, + 'cc-by-2.5': {'id': 'CC-BY-2.5', 'deprecated': False}, + 'cc-by-2.5-au': {'id': 'CC-BY-2.5-AU', 'deprecated': False}, + 'cc-by-3.0': {'id': 'CC-BY-3.0', 'deprecated': False}, + 'cc-by-3.0-at': {'id': 'CC-BY-3.0-AT', 'deprecated': False}, + 'cc-by-3.0-au': {'id': 'CC-BY-3.0-AU', 'deprecated': False}, + 'cc-by-3.0-de': {'id': 'CC-BY-3.0-DE', 'deprecated': False}, + 'cc-by-3.0-igo': {'id': 'CC-BY-3.0-IGO', 'deprecated': False}, + 'cc-by-3.0-nl': {'id': 'CC-BY-3.0-NL', 'deprecated': False}, + 'cc-by-3.0-us': {'id': 'CC-BY-3.0-US', 'deprecated': False}, + 'cc-by-4.0': {'id': 'CC-BY-4.0', 'deprecated': False}, + 'cc-by-nc-1.0': {'id': 'CC-BY-NC-1.0', 'deprecated': False}, + 'cc-by-nc-2.0': {'id': 'CC-BY-NC-2.0', 'deprecated': False}, + 'cc-by-nc-2.5': {'id': 'CC-BY-NC-2.5', 'deprecated': False}, + 'cc-by-nc-3.0': {'id': 'CC-BY-NC-3.0', 'deprecated': False}, + 'cc-by-nc-3.0-de': {'id': 'CC-BY-NC-3.0-DE', 'deprecated': False}, + 'cc-by-nc-4.0': {'id': 'CC-BY-NC-4.0', 'deprecated': False}, + 'cc-by-nc-nd-1.0': {'id': 'CC-BY-NC-ND-1.0', 'deprecated': False}, + 'cc-by-nc-nd-2.0': {'id': 'CC-BY-NC-ND-2.0', 'deprecated': False}, + 'cc-by-nc-nd-2.5': {'id': 'CC-BY-NC-ND-2.5', 'deprecated': False}, + 'cc-by-nc-nd-3.0': {'id': 'CC-BY-NC-ND-3.0', 'deprecated': False}, + 'cc-by-nc-nd-3.0-de': {'id': 'CC-BY-NC-ND-3.0-DE', 'deprecated': False}, + 'cc-by-nc-nd-3.0-igo': {'id': 'CC-BY-NC-ND-3.0-IGO', 'deprecated': False}, + 'cc-by-nc-nd-4.0': {'id': 'CC-BY-NC-ND-4.0', 'deprecated': False}, + 'cc-by-nc-sa-1.0': {'id': 'CC-BY-NC-SA-1.0', 'deprecated': False}, + 'cc-by-nc-sa-2.0': {'id': 'CC-BY-NC-SA-2.0', 'deprecated': False}, + 'cc-by-nc-sa-2.0-de': {'id': 'CC-BY-NC-SA-2.0-DE', 'deprecated': False}, + 'cc-by-nc-sa-2.0-fr': {'id': 'CC-BY-NC-SA-2.0-FR', 'deprecated': False}, + 'cc-by-nc-sa-2.0-uk': {'id': 'CC-BY-NC-SA-2.0-UK', 'deprecated': False}, + 'cc-by-nc-sa-2.5': {'id': 'CC-BY-NC-SA-2.5', 'deprecated': False}, + 'cc-by-nc-sa-3.0': {'id': 'CC-BY-NC-SA-3.0', 'deprecated': False}, + 'cc-by-nc-sa-3.0-de': {'id': 'CC-BY-NC-SA-3.0-DE', 'deprecated': False}, + 'cc-by-nc-sa-3.0-igo': {'id': 'CC-BY-NC-SA-3.0-IGO', 'deprecated': False}, + 'cc-by-nc-sa-4.0': {'id': 'CC-BY-NC-SA-4.0', 'deprecated': False}, + 'cc-by-nd-1.0': {'id': 'CC-BY-ND-1.0', 'deprecated': False}, + 'cc-by-nd-2.0': {'id': 'CC-BY-ND-2.0', 'deprecated': False}, + 'cc-by-nd-2.5': {'id': 'CC-BY-ND-2.5', 'deprecated': False}, + 'cc-by-nd-3.0': {'id': 'CC-BY-ND-3.0', 'deprecated': False}, + 'cc-by-nd-3.0-de': {'id': 'CC-BY-ND-3.0-DE', 'deprecated': False}, + 'cc-by-nd-4.0': {'id': 'CC-BY-ND-4.0', 'deprecated': False}, + 'cc-by-sa-1.0': {'id': 'CC-BY-SA-1.0', 'deprecated': False}, + 'cc-by-sa-2.0': {'id': 'CC-BY-SA-2.0', 'deprecated': False}, + 'cc-by-sa-2.0-uk': {'id': 'CC-BY-SA-2.0-UK', 'deprecated': False}, + 'cc-by-sa-2.1-jp': {'id': 'CC-BY-SA-2.1-JP', 'deprecated': False}, + 'cc-by-sa-2.5': {'id': 'CC-BY-SA-2.5', 'deprecated': False}, + 'cc-by-sa-3.0': {'id': 'CC-BY-SA-3.0', 'deprecated': False}, + 'cc-by-sa-3.0-at': {'id': 'CC-BY-SA-3.0-AT', 'deprecated': False}, + 'cc-by-sa-3.0-de': {'id': 'CC-BY-SA-3.0-DE', 'deprecated': False}, + 'cc-by-sa-3.0-igo': {'id': 'CC-BY-SA-3.0-IGO', 'deprecated': False}, + 'cc-by-sa-4.0': {'id': 'CC-BY-SA-4.0', 'deprecated': False}, + 'cc-pddc': {'id': 'CC-PDDC', 'deprecated': False}, + 'cc0-1.0': {'id': 'CC0-1.0', 'deprecated': False}, + 'cddl-1.0': {'id': 'CDDL-1.0', 'deprecated': False}, + 'cddl-1.1': {'id': 'CDDL-1.1', 'deprecated': False}, + 'cdl-1.0': {'id': 'CDL-1.0', 'deprecated': False}, + 'cdla-permissive-1.0': {'id': 'CDLA-Permissive-1.0', 'deprecated': False}, + 'cdla-permissive-2.0': {'id': 'CDLA-Permissive-2.0', 'deprecated': False}, + 'cdla-sharing-1.0': {'id': 'CDLA-Sharing-1.0', 'deprecated': False}, + 'cecill-1.0': {'id': 'CECILL-1.0', 'deprecated': False}, + 'cecill-1.1': {'id': 'CECILL-1.1', 'deprecated': False}, + 'cecill-2.0': {'id': 'CECILL-2.0', 'deprecated': False}, + 'cecill-2.1': {'id': 'CECILL-2.1', 'deprecated': False}, + 'cecill-b': {'id': 'CECILL-B', 'deprecated': False}, + 'cecill-c': {'id': 'CECILL-C', 'deprecated': False}, + 'cern-ohl-1.1': {'id': 'CERN-OHL-1.1', 'deprecated': False}, + 'cern-ohl-1.2': {'id': 'CERN-OHL-1.2', 'deprecated': False}, + 'cern-ohl-p-2.0': {'id': 'CERN-OHL-P-2.0', 'deprecated': False}, + 'cern-ohl-s-2.0': {'id': 'CERN-OHL-S-2.0', 'deprecated': False}, + 'cern-ohl-w-2.0': {'id': 'CERN-OHL-W-2.0', 'deprecated': False}, + 'cfitsio': {'id': 'CFITSIO', 'deprecated': False}, + 'check-cvs': {'id': 'check-cvs', 'deprecated': False}, + 'checkmk': {'id': 'checkmk', 'deprecated': False}, + 'clartistic': {'id': 'ClArtistic', 'deprecated': False}, + 'clips': {'id': 'Clips', 'deprecated': False}, + 'cmu-mach': {'id': 'CMU-Mach', 'deprecated': False}, + 'cmu-mach-nodoc': {'id': 'CMU-Mach-nodoc', 'deprecated': False}, + 'cnri-jython': {'id': 'CNRI-Jython', 'deprecated': False}, + 'cnri-python': {'id': 'CNRI-Python', 'deprecated': False}, + 'cnri-python-gpl-compatible': {'id': 'CNRI-Python-GPL-Compatible', 'deprecated': False}, + 'coil-1.0': {'id': 'COIL-1.0', 'deprecated': False}, + 'community-spec-1.0': {'id': 'Community-Spec-1.0', 'deprecated': False}, + 'condor-1.1': {'id': 'Condor-1.1', 'deprecated': False}, + 'copyleft-next-0.3.0': {'id': 'copyleft-next-0.3.0', 'deprecated': False}, + 'copyleft-next-0.3.1': {'id': 'copyleft-next-0.3.1', 'deprecated': False}, + 'cornell-lossless-jpeg': {'id': 'Cornell-Lossless-JPEG', 'deprecated': False}, + 'cpal-1.0': {'id': 'CPAL-1.0', 'deprecated': False}, + 'cpl-1.0': {'id': 'CPL-1.0', 'deprecated': False}, + 'cpol-1.02': {'id': 'CPOL-1.02', 'deprecated': False}, + 'cronyx': {'id': 'Cronyx', 'deprecated': False}, + 'crossword': {'id': 'Crossword', 'deprecated': False}, + 'crystalstacker': {'id': 'CrystalStacker', 'deprecated': False}, + 'cua-opl-1.0': {'id': 'CUA-OPL-1.0', 'deprecated': False}, + 'cube': {'id': 'Cube', 'deprecated': False}, + 'curl': {'id': 'curl', 'deprecated': False}, + 'cve-tou': {'id': 'cve-tou', 'deprecated': False}, + 'd-fsl-1.0': {'id': 'D-FSL-1.0', 'deprecated': False}, + 'dec-3-clause': {'id': 'DEC-3-Clause', 'deprecated': False}, + 'diffmark': {'id': 'diffmark', 'deprecated': False}, + 'dl-de-by-2.0': {'id': 'DL-DE-BY-2.0', 'deprecated': False}, + 'dl-de-zero-2.0': {'id': 'DL-DE-ZERO-2.0', 'deprecated': False}, + 'doc': {'id': 'DOC', 'deprecated': False}, + 'docbook-schema': {'id': 'DocBook-Schema', 'deprecated': False}, + 'docbook-xml': {'id': 'DocBook-XML', 'deprecated': False}, + 'dotseqn': {'id': 'Dotseqn', 'deprecated': False}, + 'drl-1.0': {'id': 'DRL-1.0', 'deprecated': False}, + 'drl-1.1': {'id': 'DRL-1.1', 'deprecated': False}, + 'dsdp': {'id': 'DSDP', 'deprecated': False}, + 'dtoa': {'id': 'dtoa', 'deprecated': False}, + 'dvipdfm': {'id': 'dvipdfm', 'deprecated': False}, + 'ecl-1.0': {'id': 'ECL-1.0', 'deprecated': False}, + 'ecl-2.0': {'id': 'ECL-2.0', 'deprecated': False}, + 'ecos-2.0': {'id': 'eCos-2.0', 'deprecated': True}, + 'efl-1.0': {'id': 'EFL-1.0', 'deprecated': False}, + 'efl-2.0': {'id': 'EFL-2.0', 'deprecated': False}, + 'egenix': {'id': 'eGenix', 'deprecated': False}, + 'elastic-2.0': {'id': 'Elastic-2.0', 'deprecated': False}, + 'entessa': {'id': 'Entessa', 'deprecated': False}, + 'epics': {'id': 'EPICS', 'deprecated': False}, + 'epl-1.0': {'id': 'EPL-1.0', 'deprecated': False}, + 'epl-2.0': {'id': 'EPL-2.0', 'deprecated': False}, + 'erlpl-1.1': {'id': 'ErlPL-1.1', 'deprecated': False}, + 'etalab-2.0': {'id': 'etalab-2.0', 'deprecated': False}, + 'eudatagrid': {'id': 'EUDatagrid', 'deprecated': False}, + 'eupl-1.0': {'id': 'EUPL-1.0', 'deprecated': False}, + 'eupl-1.1': {'id': 'EUPL-1.1', 'deprecated': False}, + 'eupl-1.2': {'id': 'EUPL-1.2', 'deprecated': False}, + 'eurosym': {'id': 'Eurosym', 'deprecated': False}, + 'fair': {'id': 'Fair', 'deprecated': False}, + 'fbm': {'id': 'FBM', 'deprecated': False}, + 'fdk-aac': {'id': 'FDK-AAC', 'deprecated': False}, + 'ferguson-twofish': {'id': 'Ferguson-Twofish', 'deprecated': False}, + 'frameworx-1.0': {'id': 'Frameworx-1.0', 'deprecated': False}, + 'freebsd-doc': {'id': 'FreeBSD-DOC', 'deprecated': False}, + 'freeimage': {'id': 'FreeImage', 'deprecated': False}, + 'fsfap': {'id': 'FSFAP', 'deprecated': False}, + 'fsfap-no-warranty-disclaimer': {'id': 'FSFAP-no-warranty-disclaimer', 'deprecated': False}, + 'fsful': {'id': 'FSFUL', 'deprecated': False}, + 'fsfullr': {'id': 'FSFULLR', 'deprecated': False}, + 'fsfullrwd': {'id': 'FSFULLRWD', 'deprecated': False}, + 'ftl': {'id': 'FTL', 'deprecated': False}, + 'furuseth': {'id': 'Furuseth', 'deprecated': False}, + 'fwlw': {'id': 'fwlw', 'deprecated': False}, + 'gcr-docs': {'id': 'GCR-docs', 'deprecated': False}, + 'gd': {'id': 'GD', 'deprecated': False}, + 'gfdl-1.1': {'id': 'GFDL-1.1', 'deprecated': True}, + 'gfdl-1.1-invariants-only': {'id': 'GFDL-1.1-invariants-only', 'deprecated': False}, + 'gfdl-1.1-invariants-or-later': {'id': 'GFDL-1.1-invariants-or-later', 'deprecated': False}, + 'gfdl-1.1-no-invariants-only': {'id': 'GFDL-1.1-no-invariants-only', 'deprecated': False}, + 'gfdl-1.1-no-invariants-or-later': {'id': 'GFDL-1.1-no-invariants-or-later', 'deprecated': False}, + 'gfdl-1.1-only': {'id': 'GFDL-1.1-only', 'deprecated': False}, + 'gfdl-1.1-or-later': {'id': 'GFDL-1.1-or-later', 'deprecated': False}, + 'gfdl-1.2': {'id': 'GFDL-1.2', 'deprecated': True}, + 'gfdl-1.2-invariants-only': {'id': 'GFDL-1.2-invariants-only', 'deprecated': False}, + 'gfdl-1.2-invariants-or-later': {'id': 'GFDL-1.2-invariants-or-later', 'deprecated': False}, + 'gfdl-1.2-no-invariants-only': {'id': 'GFDL-1.2-no-invariants-only', 'deprecated': False}, + 'gfdl-1.2-no-invariants-or-later': {'id': 'GFDL-1.2-no-invariants-or-later', 'deprecated': False}, + 'gfdl-1.2-only': {'id': 'GFDL-1.2-only', 'deprecated': False}, + 'gfdl-1.2-or-later': {'id': 'GFDL-1.2-or-later', 'deprecated': False}, + 'gfdl-1.3': {'id': 'GFDL-1.3', 'deprecated': True}, + 'gfdl-1.3-invariants-only': {'id': 'GFDL-1.3-invariants-only', 'deprecated': False}, + 'gfdl-1.3-invariants-or-later': {'id': 'GFDL-1.3-invariants-or-later', 'deprecated': False}, + 'gfdl-1.3-no-invariants-only': {'id': 'GFDL-1.3-no-invariants-only', 'deprecated': False}, + 'gfdl-1.3-no-invariants-or-later': {'id': 'GFDL-1.3-no-invariants-or-later', 'deprecated': False}, + 'gfdl-1.3-only': {'id': 'GFDL-1.3-only', 'deprecated': False}, + 'gfdl-1.3-or-later': {'id': 'GFDL-1.3-or-later', 'deprecated': False}, + 'giftware': {'id': 'Giftware', 'deprecated': False}, + 'gl2ps': {'id': 'GL2PS', 'deprecated': False}, + 'glide': {'id': 'Glide', 'deprecated': False}, + 'glulxe': {'id': 'Glulxe', 'deprecated': False}, + 'glwtpl': {'id': 'GLWTPL', 'deprecated': False}, + 'gnuplot': {'id': 'gnuplot', 'deprecated': False}, + 'gpl-1.0': {'id': 'GPL-1.0', 'deprecated': True}, + 'gpl-1.0+': {'id': 'GPL-1.0+', 'deprecated': True}, + 'gpl-1.0-only': {'id': 'GPL-1.0-only', 'deprecated': False}, + 'gpl-1.0-or-later': {'id': 'GPL-1.0-or-later', 'deprecated': False}, + 'gpl-2.0': {'id': 'GPL-2.0', 'deprecated': True}, + 'gpl-2.0+': {'id': 'GPL-2.0+', 'deprecated': True}, + 'gpl-2.0-only': {'id': 'GPL-2.0-only', 'deprecated': False}, + 'gpl-2.0-or-later': {'id': 'GPL-2.0-or-later', 'deprecated': False}, + 'gpl-2.0-with-autoconf-exception': {'id': 'GPL-2.0-with-autoconf-exception', 'deprecated': True}, + 'gpl-2.0-with-bison-exception': {'id': 'GPL-2.0-with-bison-exception', 'deprecated': True}, + 'gpl-2.0-with-classpath-exception': {'id': 'GPL-2.0-with-classpath-exception', 'deprecated': True}, + 'gpl-2.0-with-font-exception': {'id': 'GPL-2.0-with-font-exception', 'deprecated': True}, + 'gpl-2.0-with-gcc-exception': {'id': 'GPL-2.0-with-GCC-exception', 'deprecated': True}, + 'gpl-3.0': {'id': 'GPL-3.0', 'deprecated': True}, + 'gpl-3.0+': {'id': 'GPL-3.0+', 'deprecated': True}, + 'gpl-3.0-only': {'id': 'GPL-3.0-only', 'deprecated': False}, + 'gpl-3.0-or-later': {'id': 'GPL-3.0-or-later', 'deprecated': False}, + 'gpl-3.0-with-autoconf-exception': {'id': 'GPL-3.0-with-autoconf-exception', 'deprecated': True}, + 'gpl-3.0-with-gcc-exception': {'id': 'GPL-3.0-with-GCC-exception', 'deprecated': True}, + 'graphics-gems': {'id': 'Graphics-Gems', 'deprecated': False}, + 'gsoap-1.3b': {'id': 'gSOAP-1.3b', 'deprecated': False}, + 'gtkbook': {'id': 'gtkbook', 'deprecated': False}, + 'gutmann': {'id': 'Gutmann', 'deprecated': False}, + 'haskellreport': {'id': 'HaskellReport', 'deprecated': False}, + 'hdparm': {'id': 'hdparm', 'deprecated': False}, + 'hidapi': {'id': 'HIDAPI', 'deprecated': False}, + 'hippocratic-2.1': {'id': 'Hippocratic-2.1', 'deprecated': False}, + 'hp-1986': {'id': 'HP-1986', 'deprecated': False}, + 'hp-1989': {'id': 'HP-1989', 'deprecated': False}, + 'hpnd': {'id': 'HPND', 'deprecated': False}, + 'hpnd-dec': {'id': 'HPND-DEC', 'deprecated': False}, + 'hpnd-doc': {'id': 'HPND-doc', 'deprecated': False}, + 'hpnd-doc-sell': {'id': 'HPND-doc-sell', 'deprecated': False}, + 'hpnd-export-us': {'id': 'HPND-export-US', 'deprecated': False}, + 'hpnd-export-us-acknowledgement': {'id': 'HPND-export-US-acknowledgement', 'deprecated': False}, + 'hpnd-export-us-modify': {'id': 'HPND-export-US-modify', 'deprecated': False}, + 'hpnd-export2-us': {'id': 'HPND-export2-US', 'deprecated': False}, + 'hpnd-fenneberg-livingston': {'id': 'HPND-Fenneberg-Livingston', 'deprecated': False}, + 'hpnd-inria-imag': {'id': 'HPND-INRIA-IMAG', 'deprecated': False}, + 'hpnd-intel': {'id': 'HPND-Intel', 'deprecated': False}, + 'hpnd-kevlin-henney': {'id': 'HPND-Kevlin-Henney', 'deprecated': False}, + 'hpnd-markus-kuhn': {'id': 'HPND-Markus-Kuhn', 'deprecated': False}, + 'hpnd-merchantability-variant': {'id': 'HPND-merchantability-variant', 'deprecated': False}, + 'hpnd-mit-disclaimer': {'id': 'HPND-MIT-disclaimer', 'deprecated': False}, + 'hpnd-netrek': {'id': 'HPND-Netrek', 'deprecated': False}, + 'hpnd-pbmplus': {'id': 'HPND-Pbmplus', 'deprecated': False}, + 'hpnd-sell-mit-disclaimer-xserver': {'id': 'HPND-sell-MIT-disclaimer-xserver', 'deprecated': False}, + 'hpnd-sell-regexpr': {'id': 'HPND-sell-regexpr', 'deprecated': False}, + 'hpnd-sell-variant': {'id': 'HPND-sell-variant', 'deprecated': False}, + 'hpnd-sell-variant-mit-disclaimer': {'id': 'HPND-sell-variant-MIT-disclaimer', 'deprecated': False}, + 'hpnd-sell-variant-mit-disclaimer-rev': {'id': 'HPND-sell-variant-MIT-disclaimer-rev', 'deprecated': False}, + 'hpnd-uc': {'id': 'HPND-UC', 'deprecated': False}, + 'hpnd-uc-export-us': {'id': 'HPND-UC-export-US', 'deprecated': False}, + 'htmltidy': {'id': 'HTMLTIDY', 'deprecated': False}, + 'ibm-pibs': {'id': 'IBM-pibs', 'deprecated': False}, + 'icu': {'id': 'ICU', 'deprecated': False}, + 'iec-code-components-eula': {'id': 'IEC-Code-Components-EULA', 'deprecated': False}, + 'ijg': {'id': 'IJG', 'deprecated': False}, + 'ijg-short': {'id': 'IJG-short', 'deprecated': False}, + 'imagemagick': {'id': 'ImageMagick', 'deprecated': False}, + 'imatix': {'id': 'iMatix', 'deprecated': False}, + 'imlib2': {'id': 'Imlib2', 'deprecated': False}, + 'info-zip': {'id': 'Info-ZIP', 'deprecated': False}, + 'inner-net-2.0': {'id': 'Inner-Net-2.0', 'deprecated': False}, + 'intel': {'id': 'Intel', 'deprecated': False}, + 'intel-acpi': {'id': 'Intel-ACPI', 'deprecated': False}, + 'interbase-1.0': {'id': 'Interbase-1.0', 'deprecated': False}, + 'ipa': {'id': 'IPA', 'deprecated': False}, + 'ipl-1.0': {'id': 'IPL-1.0', 'deprecated': False}, + 'isc': {'id': 'ISC', 'deprecated': False}, + 'isc-veillard': {'id': 'ISC-Veillard', 'deprecated': False}, + 'jam': {'id': 'Jam', 'deprecated': False}, + 'jasper-2.0': {'id': 'JasPer-2.0', 'deprecated': False}, + 'jpl-image': {'id': 'JPL-image', 'deprecated': False}, + 'jpnic': {'id': 'JPNIC', 'deprecated': False}, + 'json': {'id': 'JSON', 'deprecated': False}, + 'kastrup': {'id': 'Kastrup', 'deprecated': False}, + 'kazlib': {'id': 'Kazlib', 'deprecated': False}, + 'knuth-ctan': {'id': 'Knuth-CTAN', 'deprecated': False}, + 'lal-1.2': {'id': 'LAL-1.2', 'deprecated': False}, + 'lal-1.3': {'id': 'LAL-1.3', 'deprecated': False}, + 'latex2e': {'id': 'Latex2e', 'deprecated': False}, + 'latex2e-translated-notice': {'id': 'Latex2e-translated-notice', 'deprecated': False}, + 'leptonica': {'id': 'Leptonica', 'deprecated': False}, + 'lgpl-2.0': {'id': 'LGPL-2.0', 'deprecated': True}, + 'lgpl-2.0+': {'id': 'LGPL-2.0+', 'deprecated': True}, + 'lgpl-2.0-only': {'id': 'LGPL-2.0-only', 'deprecated': False}, + 'lgpl-2.0-or-later': {'id': 'LGPL-2.0-or-later', 'deprecated': False}, + 'lgpl-2.1': {'id': 'LGPL-2.1', 'deprecated': True}, + 'lgpl-2.1+': {'id': 'LGPL-2.1+', 'deprecated': True}, + 'lgpl-2.1-only': {'id': 'LGPL-2.1-only', 'deprecated': False}, + 'lgpl-2.1-or-later': {'id': 'LGPL-2.1-or-later', 'deprecated': False}, + 'lgpl-3.0': {'id': 'LGPL-3.0', 'deprecated': True}, + 'lgpl-3.0+': {'id': 'LGPL-3.0+', 'deprecated': True}, + 'lgpl-3.0-only': {'id': 'LGPL-3.0-only', 'deprecated': False}, + 'lgpl-3.0-or-later': {'id': 'LGPL-3.0-or-later', 'deprecated': False}, + 'lgpllr': {'id': 'LGPLLR', 'deprecated': False}, + 'libpng': {'id': 'Libpng', 'deprecated': False}, + 'libpng-2.0': {'id': 'libpng-2.0', 'deprecated': False}, + 'libselinux-1.0': {'id': 'libselinux-1.0', 'deprecated': False}, + 'libtiff': {'id': 'libtiff', 'deprecated': False}, + 'libutil-david-nugent': {'id': 'libutil-David-Nugent', 'deprecated': False}, + 'liliq-p-1.1': {'id': 'LiLiQ-P-1.1', 'deprecated': False}, + 'liliq-r-1.1': {'id': 'LiLiQ-R-1.1', 'deprecated': False}, + 'liliq-rplus-1.1': {'id': 'LiLiQ-Rplus-1.1', 'deprecated': False}, + 'linux-man-pages-1-para': {'id': 'Linux-man-pages-1-para', 'deprecated': False}, + 'linux-man-pages-copyleft': {'id': 'Linux-man-pages-copyleft', 'deprecated': False}, + 'linux-man-pages-copyleft-2-para': {'id': 'Linux-man-pages-copyleft-2-para', 'deprecated': False}, + 'linux-man-pages-copyleft-var': {'id': 'Linux-man-pages-copyleft-var', 'deprecated': False}, + 'linux-openib': {'id': 'Linux-OpenIB', 'deprecated': False}, + 'loop': {'id': 'LOOP', 'deprecated': False}, + 'lpd-document': {'id': 'LPD-document', 'deprecated': False}, + 'lpl-1.0': {'id': 'LPL-1.0', 'deprecated': False}, + 'lpl-1.02': {'id': 'LPL-1.02', 'deprecated': False}, + 'lppl-1.0': {'id': 'LPPL-1.0', 'deprecated': False}, + 'lppl-1.1': {'id': 'LPPL-1.1', 'deprecated': False}, + 'lppl-1.2': {'id': 'LPPL-1.2', 'deprecated': False}, + 'lppl-1.3a': {'id': 'LPPL-1.3a', 'deprecated': False}, + 'lppl-1.3c': {'id': 'LPPL-1.3c', 'deprecated': False}, + 'lsof': {'id': 'lsof', 'deprecated': False}, + 'lucida-bitmap-fonts': {'id': 'Lucida-Bitmap-Fonts', 'deprecated': False}, + 'lzma-sdk-9.11-to-9.20': {'id': 'LZMA-SDK-9.11-to-9.20', 'deprecated': False}, + 'lzma-sdk-9.22': {'id': 'LZMA-SDK-9.22', 'deprecated': False}, + 'mackerras-3-clause': {'id': 'Mackerras-3-Clause', 'deprecated': False}, + 'mackerras-3-clause-acknowledgment': {'id': 'Mackerras-3-Clause-acknowledgment', 'deprecated': False}, + 'magaz': {'id': 'magaz', 'deprecated': False}, + 'mailprio': {'id': 'mailprio', 'deprecated': False}, + 'makeindex': {'id': 'MakeIndex', 'deprecated': False}, + 'martin-birgmeier': {'id': 'Martin-Birgmeier', 'deprecated': False}, + 'mcphee-slideshow': {'id': 'McPhee-slideshow', 'deprecated': False}, + 'metamail': {'id': 'metamail', 'deprecated': False}, + 'minpack': {'id': 'Minpack', 'deprecated': False}, + 'miros': {'id': 'MirOS', 'deprecated': False}, + 'mit': {'id': 'MIT', 'deprecated': False}, + 'mit-0': {'id': 'MIT-0', 'deprecated': False}, + 'mit-advertising': {'id': 'MIT-advertising', 'deprecated': False}, + 'mit-cmu': {'id': 'MIT-CMU', 'deprecated': False}, + 'mit-enna': {'id': 'MIT-enna', 'deprecated': False}, + 'mit-feh': {'id': 'MIT-feh', 'deprecated': False}, + 'mit-festival': {'id': 'MIT-Festival', 'deprecated': False}, + 'mit-khronos-old': {'id': 'MIT-Khronos-old', 'deprecated': False}, + 'mit-modern-variant': {'id': 'MIT-Modern-Variant', 'deprecated': False}, + 'mit-open-group': {'id': 'MIT-open-group', 'deprecated': False}, + 'mit-testregex': {'id': 'MIT-testregex', 'deprecated': False}, + 'mit-wu': {'id': 'MIT-Wu', 'deprecated': False}, + 'mitnfa': {'id': 'MITNFA', 'deprecated': False}, + 'mmixware': {'id': 'MMIXware', 'deprecated': False}, + 'motosoto': {'id': 'Motosoto', 'deprecated': False}, + 'mpeg-ssg': {'id': 'MPEG-SSG', 'deprecated': False}, + 'mpi-permissive': {'id': 'mpi-permissive', 'deprecated': False}, + 'mpich2': {'id': 'mpich2', 'deprecated': False}, + 'mpl-1.0': {'id': 'MPL-1.0', 'deprecated': False}, + 'mpl-1.1': {'id': 'MPL-1.1', 'deprecated': False}, + 'mpl-2.0': {'id': 'MPL-2.0', 'deprecated': False}, + 'mpl-2.0-no-copyleft-exception': {'id': 'MPL-2.0-no-copyleft-exception', 'deprecated': False}, + 'mplus': {'id': 'mplus', 'deprecated': False}, + 'ms-lpl': {'id': 'MS-LPL', 'deprecated': False}, + 'ms-pl': {'id': 'MS-PL', 'deprecated': False}, + 'ms-rl': {'id': 'MS-RL', 'deprecated': False}, + 'mtll': {'id': 'MTLL', 'deprecated': False}, + 'mulanpsl-1.0': {'id': 'MulanPSL-1.0', 'deprecated': False}, + 'mulanpsl-2.0': {'id': 'MulanPSL-2.0', 'deprecated': False}, + 'multics': {'id': 'Multics', 'deprecated': False}, + 'mup': {'id': 'Mup', 'deprecated': False}, + 'naist-2003': {'id': 'NAIST-2003', 'deprecated': False}, + 'nasa-1.3': {'id': 'NASA-1.3', 'deprecated': False}, + 'naumen': {'id': 'Naumen', 'deprecated': False}, + 'nbpl-1.0': {'id': 'NBPL-1.0', 'deprecated': False}, + 'ncbi-pd': {'id': 'NCBI-PD', 'deprecated': False}, + 'ncgl-uk-2.0': {'id': 'NCGL-UK-2.0', 'deprecated': False}, + 'ncl': {'id': 'NCL', 'deprecated': False}, + 'ncsa': {'id': 'NCSA', 'deprecated': False}, + 'net-snmp': {'id': 'Net-SNMP', 'deprecated': True}, + 'netcdf': {'id': 'NetCDF', 'deprecated': False}, + 'newsletr': {'id': 'Newsletr', 'deprecated': False}, + 'ngpl': {'id': 'NGPL', 'deprecated': False}, + 'nicta-1.0': {'id': 'NICTA-1.0', 'deprecated': False}, + 'nist-pd': {'id': 'NIST-PD', 'deprecated': False}, + 'nist-pd-fallback': {'id': 'NIST-PD-fallback', 'deprecated': False}, + 'nist-software': {'id': 'NIST-Software', 'deprecated': False}, + 'nlod-1.0': {'id': 'NLOD-1.0', 'deprecated': False}, + 'nlod-2.0': {'id': 'NLOD-2.0', 'deprecated': False}, + 'nlpl': {'id': 'NLPL', 'deprecated': False}, + 'nokia': {'id': 'Nokia', 'deprecated': False}, + 'nosl': {'id': 'NOSL', 'deprecated': False}, + 'noweb': {'id': 'Noweb', 'deprecated': False}, + 'npl-1.0': {'id': 'NPL-1.0', 'deprecated': False}, + 'npl-1.1': {'id': 'NPL-1.1', 'deprecated': False}, + 'nposl-3.0': {'id': 'NPOSL-3.0', 'deprecated': False}, + 'nrl': {'id': 'NRL', 'deprecated': False}, + 'ntp': {'id': 'NTP', 'deprecated': False}, + 'ntp-0': {'id': 'NTP-0', 'deprecated': False}, + 'nunit': {'id': 'Nunit', 'deprecated': True}, + 'o-uda-1.0': {'id': 'O-UDA-1.0', 'deprecated': False}, + 'oar': {'id': 'OAR', 'deprecated': False}, + 'occt-pl': {'id': 'OCCT-PL', 'deprecated': False}, + 'oclc-2.0': {'id': 'OCLC-2.0', 'deprecated': False}, + 'odbl-1.0': {'id': 'ODbL-1.0', 'deprecated': False}, + 'odc-by-1.0': {'id': 'ODC-By-1.0', 'deprecated': False}, + 'offis': {'id': 'OFFIS', 'deprecated': False}, + 'ofl-1.0': {'id': 'OFL-1.0', 'deprecated': False}, + 'ofl-1.0-no-rfn': {'id': 'OFL-1.0-no-RFN', 'deprecated': False}, + 'ofl-1.0-rfn': {'id': 'OFL-1.0-RFN', 'deprecated': False}, + 'ofl-1.1': {'id': 'OFL-1.1', 'deprecated': False}, + 'ofl-1.1-no-rfn': {'id': 'OFL-1.1-no-RFN', 'deprecated': False}, + 'ofl-1.1-rfn': {'id': 'OFL-1.1-RFN', 'deprecated': False}, + 'ogc-1.0': {'id': 'OGC-1.0', 'deprecated': False}, + 'ogdl-taiwan-1.0': {'id': 'OGDL-Taiwan-1.0', 'deprecated': False}, + 'ogl-canada-2.0': {'id': 'OGL-Canada-2.0', 'deprecated': False}, + 'ogl-uk-1.0': {'id': 'OGL-UK-1.0', 'deprecated': False}, + 'ogl-uk-2.0': {'id': 'OGL-UK-2.0', 'deprecated': False}, + 'ogl-uk-3.0': {'id': 'OGL-UK-3.0', 'deprecated': False}, + 'ogtsl': {'id': 'OGTSL', 'deprecated': False}, + 'oldap-1.1': {'id': 'OLDAP-1.1', 'deprecated': False}, + 'oldap-1.2': {'id': 'OLDAP-1.2', 'deprecated': False}, + 'oldap-1.3': {'id': 'OLDAP-1.3', 'deprecated': False}, + 'oldap-1.4': {'id': 'OLDAP-1.4', 'deprecated': False}, + 'oldap-2.0': {'id': 'OLDAP-2.0', 'deprecated': False}, + 'oldap-2.0.1': {'id': 'OLDAP-2.0.1', 'deprecated': False}, + 'oldap-2.1': {'id': 'OLDAP-2.1', 'deprecated': False}, + 'oldap-2.2': {'id': 'OLDAP-2.2', 'deprecated': False}, + 'oldap-2.2.1': {'id': 'OLDAP-2.2.1', 'deprecated': False}, + 'oldap-2.2.2': {'id': 'OLDAP-2.2.2', 'deprecated': False}, + 'oldap-2.3': {'id': 'OLDAP-2.3', 'deprecated': False}, + 'oldap-2.4': {'id': 'OLDAP-2.4', 'deprecated': False}, + 'oldap-2.5': {'id': 'OLDAP-2.5', 'deprecated': False}, + 'oldap-2.6': {'id': 'OLDAP-2.6', 'deprecated': False}, + 'oldap-2.7': {'id': 'OLDAP-2.7', 'deprecated': False}, + 'oldap-2.8': {'id': 'OLDAP-2.8', 'deprecated': False}, + 'olfl-1.3': {'id': 'OLFL-1.3', 'deprecated': False}, + 'oml': {'id': 'OML', 'deprecated': False}, + 'openpbs-2.3': {'id': 'OpenPBS-2.3', 'deprecated': False}, + 'openssl': {'id': 'OpenSSL', 'deprecated': False}, + 'openssl-standalone': {'id': 'OpenSSL-standalone', 'deprecated': False}, + 'openvision': {'id': 'OpenVision', 'deprecated': False}, + 'opl-1.0': {'id': 'OPL-1.0', 'deprecated': False}, + 'opl-uk-3.0': {'id': 'OPL-UK-3.0', 'deprecated': False}, + 'opubl-1.0': {'id': 'OPUBL-1.0', 'deprecated': False}, + 'oset-pl-2.1': {'id': 'OSET-PL-2.1', 'deprecated': False}, + 'osl-1.0': {'id': 'OSL-1.0', 'deprecated': False}, + 'osl-1.1': {'id': 'OSL-1.1', 'deprecated': False}, + 'osl-2.0': {'id': 'OSL-2.0', 'deprecated': False}, + 'osl-2.1': {'id': 'OSL-2.1', 'deprecated': False}, + 'osl-3.0': {'id': 'OSL-3.0', 'deprecated': False}, + 'padl': {'id': 'PADL', 'deprecated': False}, + 'parity-6.0.0': {'id': 'Parity-6.0.0', 'deprecated': False}, + 'parity-7.0.0': {'id': 'Parity-7.0.0', 'deprecated': False}, + 'pddl-1.0': {'id': 'PDDL-1.0', 'deprecated': False}, + 'php-3.0': {'id': 'PHP-3.0', 'deprecated': False}, + 'php-3.01': {'id': 'PHP-3.01', 'deprecated': False}, + 'pixar': {'id': 'Pixar', 'deprecated': False}, + 'pkgconf': {'id': 'pkgconf', 'deprecated': False}, + 'plexus': {'id': 'Plexus', 'deprecated': False}, + 'pnmstitch': {'id': 'pnmstitch', 'deprecated': False}, + 'polyform-noncommercial-1.0.0': {'id': 'PolyForm-Noncommercial-1.0.0', 'deprecated': False}, + 'polyform-small-business-1.0.0': {'id': 'PolyForm-Small-Business-1.0.0', 'deprecated': False}, + 'postgresql': {'id': 'PostgreSQL', 'deprecated': False}, + 'ppl': {'id': 'PPL', 'deprecated': False}, + 'psf-2.0': {'id': 'PSF-2.0', 'deprecated': False}, + 'psfrag': {'id': 'psfrag', 'deprecated': False}, + 'psutils': {'id': 'psutils', 'deprecated': False}, + 'python-2.0': {'id': 'Python-2.0', 'deprecated': False}, + 'python-2.0.1': {'id': 'Python-2.0.1', 'deprecated': False}, + 'python-ldap': {'id': 'python-ldap', 'deprecated': False}, + 'qhull': {'id': 'Qhull', 'deprecated': False}, + 'qpl-1.0': {'id': 'QPL-1.0', 'deprecated': False}, + 'qpl-1.0-inria-2004': {'id': 'QPL-1.0-INRIA-2004', 'deprecated': False}, + 'radvd': {'id': 'radvd', 'deprecated': False}, + 'rdisc': {'id': 'Rdisc', 'deprecated': False}, + 'rhecos-1.1': {'id': 'RHeCos-1.1', 'deprecated': False}, + 'rpl-1.1': {'id': 'RPL-1.1', 'deprecated': False}, + 'rpl-1.5': {'id': 'RPL-1.5', 'deprecated': False}, + 'rpsl-1.0': {'id': 'RPSL-1.0', 'deprecated': False}, + 'rsa-md': {'id': 'RSA-MD', 'deprecated': False}, + 'rscpl': {'id': 'RSCPL', 'deprecated': False}, + 'ruby': {'id': 'Ruby', 'deprecated': False}, + 'ruby-pty': {'id': 'Ruby-pty', 'deprecated': False}, + 'sax-pd': {'id': 'SAX-PD', 'deprecated': False}, + 'sax-pd-2.0': {'id': 'SAX-PD-2.0', 'deprecated': False}, + 'saxpath': {'id': 'Saxpath', 'deprecated': False}, + 'scea': {'id': 'SCEA', 'deprecated': False}, + 'schemereport': {'id': 'SchemeReport', 'deprecated': False}, + 'sendmail': {'id': 'Sendmail', 'deprecated': False}, + 'sendmail-8.23': {'id': 'Sendmail-8.23', 'deprecated': False}, + 'sgi-b-1.0': {'id': 'SGI-B-1.0', 'deprecated': False}, + 'sgi-b-1.1': {'id': 'SGI-B-1.1', 'deprecated': False}, + 'sgi-b-2.0': {'id': 'SGI-B-2.0', 'deprecated': False}, + 'sgi-opengl': {'id': 'SGI-OpenGL', 'deprecated': False}, + 'sgp4': {'id': 'SGP4', 'deprecated': False}, + 'shl-0.5': {'id': 'SHL-0.5', 'deprecated': False}, + 'shl-0.51': {'id': 'SHL-0.51', 'deprecated': False}, + 'simpl-2.0': {'id': 'SimPL-2.0', 'deprecated': False}, + 'sissl': {'id': 'SISSL', 'deprecated': False}, + 'sissl-1.2': {'id': 'SISSL-1.2', 'deprecated': False}, + 'sl': {'id': 'SL', 'deprecated': False}, + 'sleepycat': {'id': 'Sleepycat', 'deprecated': False}, + 'smlnj': {'id': 'SMLNJ', 'deprecated': False}, + 'smppl': {'id': 'SMPPL', 'deprecated': False}, + 'snia': {'id': 'SNIA', 'deprecated': False}, + 'snprintf': {'id': 'snprintf', 'deprecated': False}, + 'softsurfer': {'id': 'softSurfer', 'deprecated': False}, + 'soundex': {'id': 'Soundex', 'deprecated': False}, + 'spencer-86': {'id': 'Spencer-86', 'deprecated': False}, + 'spencer-94': {'id': 'Spencer-94', 'deprecated': False}, + 'spencer-99': {'id': 'Spencer-99', 'deprecated': False}, + 'spl-1.0': {'id': 'SPL-1.0', 'deprecated': False}, + 'ssh-keyscan': {'id': 'ssh-keyscan', 'deprecated': False}, + 'ssh-openssh': {'id': 'SSH-OpenSSH', 'deprecated': False}, + 'ssh-short': {'id': 'SSH-short', 'deprecated': False}, + 'ssleay-standalone': {'id': 'SSLeay-standalone', 'deprecated': False}, + 'sspl-1.0': {'id': 'SSPL-1.0', 'deprecated': False}, + 'standardml-nj': {'id': 'StandardML-NJ', 'deprecated': True}, + 'sugarcrm-1.1.3': {'id': 'SugarCRM-1.1.3', 'deprecated': False}, + 'sun-ppp': {'id': 'Sun-PPP', 'deprecated': False}, + 'sun-ppp-2000': {'id': 'Sun-PPP-2000', 'deprecated': False}, + 'sunpro': {'id': 'SunPro', 'deprecated': False}, + 'swl': {'id': 'SWL', 'deprecated': False}, + 'swrule': {'id': 'swrule', 'deprecated': False}, + 'symlinks': {'id': 'Symlinks', 'deprecated': False}, + 'tapr-ohl-1.0': {'id': 'TAPR-OHL-1.0', 'deprecated': False}, + 'tcl': {'id': 'TCL', 'deprecated': False}, + 'tcp-wrappers': {'id': 'TCP-wrappers', 'deprecated': False}, + 'termreadkey': {'id': 'TermReadKey', 'deprecated': False}, + 'tgppl-1.0': {'id': 'TGPPL-1.0', 'deprecated': False}, + 'threeparttable': {'id': 'threeparttable', 'deprecated': False}, + 'tmate': {'id': 'TMate', 'deprecated': False}, + 'torque-1.1': {'id': 'TORQUE-1.1', 'deprecated': False}, + 'tosl': {'id': 'TOSL', 'deprecated': False}, + 'tpdl': {'id': 'TPDL', 'deprecated': False}, + 'tpl-1.0': {'id': 'TPL-1.0', 'deprecated': False}, + 'ttwl': {'id': 'TTWL', 'deprecated': False}, + 'ttyp0': {'id': 'TTYP0', 'deprecated': False}, + 'tu-berlin-1.0': {'id': 'TU-Berlin-1.0', 'deprecated': False}, + 'tu-berlin-2.0': {'id': 'TU-Berlin-2.0', 'deprecated': False}, + 'ubuntu-font-1.0': {'id': 'Ubuntu-font-1.0', 'deprecated': False}, + 'ucar': {'id': 'UCAR', 'deprecated': False}, + 'ucl-1.0': {'id': 'UCL-1.0', 'deprecated': False}, + 'ulem': {'id': 'ulem', 'deprecated': False}, + 'umich-merit': {'id': 'UMich-Merit', 'deprecated': False}, + 'unicode-3.0': {'id': 'Unicode-3.0', 'deprecated': False}, + 'unicode-dfs-2015': {'id': 'Unicode-DFS-2015', 'deprecated': False}, + 'unicode-dfs-2016': {'id': 'Unicode-DFS-2016', 'deprecated': False}, + 'unicode-tou': {'id': 'Unicode-TOU', 'deprecated': False}, + 'unixcrypt': {'id': 'UnixCrypt', 'deprecated': False}, + 'unlicense': {'id': 'Unlicense', 'deprecated': False}, + 'upl-1.0': {'id': 'UPL-1.0', 'deprecated': False}, + 'urt-rle': {'id': 'URT-RLE', 'deprecated': False}, + 'vim': {'id': 'Vim', 'deprecated': False}, + 'vostrom': {'id': 'VOSTROM', 'deprecated': False}, + 'vsl-1.0': {'id': 'VSL-1.0', 'deprecated': False}, + 'w3c': {'id': 'W3C', 'deprecated': False}, + 'w3c-19980720': {'id': 'W3C-19980720', 'deprecated': False}, + 'w3c-20150513': {'id': 'W3C-20150513', 'deprecated': False}, + 'w3m': {'id': 'w3m', 'deprecated': False}, + 'watcom-1.0': {'id': 'Watcom-1.0', 'deprecated': False}, + 'widget-workshop': {'id': 'Widget-Workshop', 'deprecated': False}, + 'wsuipa': {'id': 'Wsuipa', 'deprecated': False}, + 'wtfpl': {'id': 'WTFPL', 'deprecated': False}, + 'wxwindows': {'id': 'wxWindows', 'deprecated': True}, + 'x11': {'id': 'X11', 'deprecated': False}, + 'x11-distribute-modifications-variant': {'id': 'X11-distribute-modifications-variant', 'deprecated': False}, + 'x11-swapped': {'id': 'X11-swapped', 'deprecated': False}, + 'xdebug-1.03': {'id': 'Xdebug-1.03', 'deprecated': False}, + 'xerox': {'id': 'Xerox', 'deprecated': False}, + 'xfig': {'id': 'Xfig', 'deprecated': False}, + 'xfree86-1.1': {'id': 'XFree86-1.1', 'deprecated': False}, + 'xinetd': {'id': 'xinetd', 'deprecated': False}, + 'xkeyboard-config-zinoviev': {'id': 'xkeyboard-config-Zinoviev', 'deprecated': False}, + 'xlock': {'id': 'xlock', 'deprecated': False}, + 'xnet': {'id': 'Xnet', 'deprecated': False}, + 'xpp': {'id': 'xpp', 'deprecated': False}, + 'xskat': {'id': 'XSkat', 'deprecated': False}, + 'xzoom': {'id': 'xzoom', 'deprecated': False}, + 'ypl-1.0': {'id': 'YPL-1.0', 'deprecated': False}, + 'ypl-1.1': {'id': 'YPL-1.1', 'deprecated': False}, + 'zed': {'id': 'Zed', 'deprecated': False}, + 'zeeff': {'id': 'Zeeff', 'deprecated': False}, + 'zend-2.0': {'id': 'Zend-2.0', 'deprecated': False}, + 'zimbra-1.3': {'id': 'Zimbra-1.3', 'deprecated': False}, + 'zimbra-1.4': {'id': 'Zimbra-1.4', 'deprecated': False}, + 'zlib': {'id': 'Zlib', 'deprecated': False}, + 'zlib-acknowledgement': {'id': 'zlib-acknowledgement', 'deprecated': False}, + 'zpl-1.1': {'id': 'ZPL-1.1', 'deprecated': False}, + 'zpl-2.0': {'id': 'ZPL-2.0', 'deprecated': False}, + 'zpl-2.1': {'id': 'ZPL-2.1', 'deprecated': False}, +} + +EXCEPTIONS: dict[str, SPDXException] = { + '389-exception': {'id': '389-exception', 'deprecated': False}, + 'asterisk-exception': {'id': 'Asterisk-exception', 'deprecated': False}, + 'asterisk-linking-protocols-exception': {'id': 'Asterisk-linking-protocols-exception', 'deprecated': False}, + 'autoconf-exception-2.0': {'id': 'Autoconf-exception-2.0', 'deprecated': False}, + 'autoconf-exception-3.0': {'id': 'Autoconf-exception-3.0', 'deprecated': False}, + 'autoconf-exception-generic': {'id': 'Autoconf-exception-generic', 'deprecated': False}, + 'autoconf-exception-generic-3.0': {'id': 'Autoconf-exception-generic-3.0', 'deprecated': False}, + 'autoconf-exception-macro': {'id': 'Autoconf-exception-macro', 'deprecated': False}, + 'bison-exception-1.24': {'id': 'Bison-exception-1.24', 'deprecated': False}, + 'bison-exception-2.2': {'id': 'Bison-exception-2.2', 'deprecated': False}, + 'bootloader-exception': {'id': 'Bootloader-exception', 'deprecated': False}, + 'classpath-exception-2.0': {'id': 'Classpath-exception-2.0', 'deprecated': False}, + 'clisp-exception-2.0': {'id': 'CLISP-exception-2.0', 'deprecated': False}, + 'cryptsetup-openssl-exception': {'id': 'cryptsetup-OpenSSL-exception', 'deprecated': False}, + 'digirule-foss-exception': {'id': 'DigiRule-FOSS-exception', 'deprecated': False}, + 'ecos-exception-2.0': {'id': 'eCos-exception-2.0', 'deprecated': False}, + 'erlang-otp-linking-exception': {'id': 'erlang-otp-linking-exception', 'deprecated': False}, + 'fawkes-runtime-exception': {'id': 'Fawkes-Runtime-exception', 'deprecated': False}, + 'fltk-exception': {'id': 'FLTK-exception', 'deprecated': False}, + 'fmt-exception': {'id': 'fmt-exception', 'deprecated': False}, + 'font-exception-2.0': {'id': 'Font-exception-2.0', 'deprecated': False}, + 'freertos-exception-2.0': {'id': 'freertos-exception-2.0', 'deprecated': False}, + 'gcc-exception-2.0': {'id': 'GCC-exception-2.0', 'deprecated': False}, + 'gcc-exception-2.0-note': {'id': 'GCC-exception-2.0-note', 'deprecated': False}, + 'gcc-exception-3.1': {'id': 'GCC-exception-3.1', 'deprecated': False}, + 'gmsh-exception': {'id': 'Gmsh-exception', 'deprecated': False}, + 'gnat-exception': {'id': 'GNAT-exception', 'deprecated': False}, + 'gnome-examples-exception': {'id': 'GNOME-examples-exception', 'deprecated': False}, + 'gnu-compiler-exception': {'id': 'GNU-compiler-exception', 'deprecated': False}, + 'gnu-javamail-exception': {'id': 'gnu-javamail-exception', 'deprecated': False}, + 'gpl-3.0-interface-exception': {'id': 'GPL-3.0-interface-exception', 'deprecated': False}, + 'gpl-3.0-linking-exception': {'id': 'GPL-3.0-linking-exception', 'deprecated': False}, + 'gpl-3.0-linking-source-exception': {'id': 'GPL-3.0-linking-source-exception', 'deprecated': False}, + 'gpl-cc-1.0': {'id': 'GPL-CC-1.0', 'deprecated': False}, + 'gstreamer-exception-2005': {'id': 'GStreamer-exception-2005', 'deprecated': False}, + 'gstreamer-exception-2008': {'id': 'GStreamer-exception-2008', 'deprecated': False}, + 'i2p-gpl-java-exception': {'id': 'i2p-gpl-java-exception', 'deprecated': False}, + 'kicad-libraries-exception': {'id': 'KiCad-libraries-exception', 'deprecated': False}, + 'lgpl-3.0-linking-exception': {'id': 'LGPL-3.0-linking-exception', 'deprecated': False}, + 'libpri-openh323-exception': {'id': 'libpri-OpenH323-exception', 'deprecated': False}, + 'libtool-exception': {'id': 'Libtool-exception', 'deprecated': False}, + 'linux-syscall-note': {'id': 'Linux-syscall-note', 'deprecated': False}, + 'llgpl': {'id': 'LLGPL', 'deprecated': False}, + 'llvm-exception': {'id': 'LLVM-exception', 'deprecated': False}, + 'lzma-exception': {'id': 'LZMA-exception', 'deprecated': False}, + 'mif-exception': {'id': 'mif-exception', 'deprecated': False}, + 'nokia-qt-exception-1.1': {'id': 'Nokia-Qt-exception-1.1', 'deprecated': True}, + 'ocaml-lgpl-linking-exception': {'id': 'OCaml-LGPL-linking-exception', 'deprecated': False}, + 'occt-exception-1.0': {'id': 'OCCT-exception-1.0', 'deprecated': False}, + 'openjdk-assembly-exception-1.0': {'id': 'OpenJDK-assembly-exception-1.0', 'deprecated': False}, + 'openvpn-openssl-exception': {'id': 'openvpn-openssl-exception', 'deprecated': False}, + 'pcre2-exception': {'id': 'PCRE2-exception', 'deprecated': False}, + 'ps-or-pdf-font-exception-20170817': {'id': 'PS-or-PDF-font-exception-20170817', 'deprecated': False}, + 'qpl-1.0-inria-2004-exception': {'id': 'QPL-1.0-INRIA-2004-exception', 'deprecated': False}, + 'qt-gpl-exception-1.0': {'id': 'Qt-GPL-exception-1.0', 'deprecated': False}, + 'qt-lgpl-exception-1.1': {'id': 'Qt-LGPL-exception-1.1', 'deprecated': False}, + 'qwt-exception-1.0': {'id': 'Qwt-exception-1.0', 'deprecated': False}, + 'romic-exception': {'id': 'romic-exception', 'deprecated': False}, + 'rrdtool-floss-exception-2.0': {'id': 'RRDtool-FLOSS-exception-2.0', 'deprecated': False}, + 'sane-exception': {'id': 'SANE-exception', 'deprecated': False}, + 'shl-2.0': {'id': 'SHL-2.0', 'deprecated': False}, + 'shl-2.1': {'id': 'SHL-2.1', 'deprecated': False}, + 'stunnel-exception': {'id': 'stunnel-exception', 'deprecated': False}, + 'swi-exception': {'id': 'SWI-exception', 'deprecated': False}, + 'swift-exception': {'id': 'Swift-exception', 'deprecated': False}, + 'texinfo-exception': {'id': 'Texinfo-exception', 'deprecated': False}, + 'u-boot-exception-2.0': {'id': 'u-boot-exception-2.0', 'deprecated': False}, + 'ubdl-exception': {'id': 'UBDL-exception', 'deprecated': False}, + 'universal-foss-exception-1.0': {'id': 'Universal-FOSS-exception-1.0', 'deprecated': False}, + 'vsftpd-openssl-exception': {'id': 'vsftpd-openssl-exception', 'deprecated': False}, + 'wxwindows-exception-3.1': {'id': 'WxWindows-exception-3.1', 'deprecated': False}, + 'x11vnc-openssl-exception': {'id': 'x11vnc-openssl-exception', 'deprecated': False}, +} diff --git a/setuptools/_vendor/packaging/markers.py b/setuptools/_vendor/packaging/markers.py new file mode 100644 index 0000000000..fb7f49cf8c --- /dev/null +++ b/setuptools/_vendor/packaging/markers.py @@ -0,0 +1,331 @@ +# This file is dual licensed under the terms of the Apache License, Version +# 2.0, and the BSD License. See the LICENSE file in the root of this repository +# for complete details. + +from __future__ import annotations + +import operator +import os +import platform +import sys +from typing import Any, Callable, TypedDict, cast + +from ._parser import MarkerAtom, MarkerList, Op, Value, Variable +from ._parser import parse_marker as _parse_marker +from ._tokenizer import ParserSyntaxError +from .specifiers import InvalidSpecifier, Specifier +from .utils import canonicalize_name + +__all__ = [ + "InvalidMarker", + "Marker", + "UndefinedComparison", + "UndefinedEnvironmentName", + "default_environment", +] + +Operator = Callable[[str, str], bool] + + +class InvalidMarker(ValueError): + """ + An invalid marker was found, users should refer to PEP 508. + """ + + +class UndefinedComparison(ValueError): + """ + An invalid operation was attempted on a value that doesn't support it. + """ + + +class UndefinedEnvironmentName(ValueError): + """ + A name was attempted to be used that does not exist inside of the + environment. + """ + + +class Environment(TypedDict): + implementation_name: str + """The implementation's identifier, e.g. ``'cpython'``.""" + + implementation_version: str + """ + The implementation's version, e.g. ``'3.13.0a2'`` for CPython 3.13.0a2, or + ``'7.3.13'`` for PyPy3.10 v7.3.13. + """ + + os_name: str + """ + The value of :py:data:`os.name`. The name of the operating system dependent module + imported, e.g. ``'posix'``. + """ + + platform_machine: str + """ + Returns the machine type, e.g. ``'i386'``. + + An empty string if the value cannot be determined. + """ + + platform_release: str + """ + The system's release, e.g. ``'2.2.0'`` or ``'NT'``. + + An empty string if the value cannot be determined. + """ + + platform_system: str + """ + The system/OS name, e.g. ``'Linux'``, ``'Windows'`` or ``'Java'``. + + An empty string if the value cannot be determined. + """ + + platform_version: str + """ + The system's release version, e.g. ``'#3 on degas'``. + + An empty string if the value cannot be determined. + """ + + python_full_version: str + """ + The Python version as string ``'major.minor.patchlevel'``. + + Note that unlike the Python :py:data:`sys.version`, this value will always include + the patchlevel (it defaults to 0). + """ + + platform_python_implementation: str + """ + A string identifying the Python implementation, e.g. ``'CPython'``. + """ + + python_version: str + """The Python version as string ``'major.minor'``.""" + + sys_platform: str + """ + This string contains a platform identifier that can be used to append + platform-specific components to :py:data:`sys.path`, for instance. + + For Unix systems, except on Linux and AIX, this is the lowercased OS name as + returned by ``uname -s`` with the first part of the version as returned by + ``uname -r`` appended, e.g. ``'sunos5'`` or ``'freebsd8'``, at the time when Python + was built. + """ + + +def _normalize_extra_values(results: Any) -> Any: + """ + Normalize extra values. + """ + if isinstance(results[0], tuple): + lhs, op, rhs = results[0] + if isinstance(lhs, Variable) and lhs.value == "extra": + normalized_extra = canonicalize_name(rhs.value) + rhs = Value(normalized_extra) + elif isinstance(rhs, Variable) and rhs.value == "extra": + normalized_extra = canonicalize_name(lhs.value) + lhs = Value(normalized_extra) + results[0] = lhs, op, rhs + return results + + +def _format_marker( + marker: list[str] | MarkerAtom | str, first: bool | None = True +) -> str: + assert isinstance(marker, (list, tuple, str)) + + # Sometimes we have a structure like [[...]] which is a single item list + # where the single item is itself it's own list. In that case we want skip + # the rest of this function so that we don't get extraneous () on the + # outside. + if ( + isinstance(marker, list) + and len(marker) == 1 + and isinstance(marker[0], (list, tuple)) + ): + return _format_marker(marker[0]) + + if isinstance(marker, list): + inner = (_format_marker(m, first=False) for m in marker) + if first: + return " ".join(inner) + else: + return "(" + " ".join(inner) + ")" + elif isinstance(marker, tuple): + return " ".join([m.serialize() for m in marker]) + else: + return marker + + +_operators: dict[str, Operator] = { + "in": lambda lhs, rhs: lhs in rhs, + "not in": lambda lhs, rhs: lhs not in rhs, + "<": operator.lt, + "<=": operator.le, + "==": operator.eq, + "!=": operator.ne, + ">=": operator.ge, + ">": operator.gt, +} + + +def _eval_op(lhs: str, op: Op, rhs: str) -> bool: + try: + spec = Specifier("".join([op.serialize(), rhs])) + except InvalidSpecifier: + pass + else: + return spec.contains(lhs, prereleases=True) + + oper: Operator | None = _operators.get(op.serialize()) + if oper is None: + raise UndefinedComparison(f"Undefined {op!r} on {lhs!r} and {rhs!r}.") + + return oper(lhs, rhs) + + +def _normalize(*values: str, key: str) -> tuple[str, ...]: + # PEP 685 – Comparison of extra names for optional distribution dependencies + # https://peps.python.org/pep-0685/ + # > When comparing extra names, tools MUST normalize the names being + # > compared using the semantics outlined in PEP 503 for names + if key == "extra": + return tuple(canonicalize_name(v) for v in values) + + # other environment markers don't have such standards + return values + + +def _evaluate_markers(markers: MarkerList, environment: dict[str, str]) -> bool: + groups: list[list[bool]] = [[]] + + for marker in markers: + assert isinstance(marker, (list, tuple, str)) + + if isinstance(marker, list): + groups[-1].append(_evaluate_markers(marker, environment)) + elif isinstance(marker, tuple): + lhs, op, rhs = marker + + if isinstance(lhs, Variable): + environment_key = lhs.value + lhs_value = environment[environment_key] + rhs_value = rhs.value + else: + lhs_value = lhs.value + environment_key = rhs.value + rhs_value = environment[environment_key] + + lhs_value, rhs_value = _normalize(lhs_value, rhs_value, key=environment_key) + groups[-1].append(_eval_op(lhs_value, op, rhs_value)) + else: + assert marker in ["and", "or"] + if marker == "or": + groups.append([]) + + return any(all(item) for item in groups) + + +def format_full_version(info: sys._version_info) -> str: + version = f"{info.major}.{info.minor}.{info.micro}" + kind = info.releaselevel + if kind != "final": + version += kind[0] + str(info.serial) + return version + + +def default_environment() -> Environment: + iver = format_full_version(sys.implementation.version) + implementation_name = sys.implementation.name + return { + "implementation_name": implementation_name, + "implementation_version": iver, + "os_name": os.name, + "platform_machine": platform.machine(), + "platform_release": platform.release(), + "platform_system": platform.system(), + "platform_version": platform.version(), + "python_full_version": platform.python_version(), + "platform_python_implementation": platform.python_implementation(), + "python_version": ".".join(platform.python_version_tuple()[:2]), + "sys_platform": sys.platform, + } + + +class Marker: + def __init__(self, marker: str) -> None: + # Note: We create a Marker object without calling this constructor in + # packaging.requirements.Requirement. If any additional logic is + # added here, make sure to mirror/adapt Requirement. + try: + self._markers = _normalize_extra_values(_parse_marker(marker)) + # The attribute `_markers` can be described in terms of a recursive type: + # MarkerList = List[Union[Tuple[Node, ...], str, MarkerList]] + # + # For example, the following expression: + # python_version > "3.6" or (python_version == "3.6" and os_name == "unix") + # + # is parsed into: + # [ + # (, ')>, ), + # 'and', + # [ + # (, , ), + # 'or', + # (, , ) + # ] + # ] + except ParserSyntaxError as e: + raise InvalidMarker(str(e)) from e + + def __str__(self) -> str: + return _format_marker(self._markers) + + def __repr__(self) -> str: + return f"" + + def __hash__(self) -> int: + return hash((self.__class__.__name__, str(self))) + + def __eq__(self, other: Any) -> bool: + if not isinstance(other, Marker): + return NotImplemented + + return str(self) == str(other) + + def evaluate(self, environment: dict[str, str] | None = None) -> bool: + """Evaluate a marker. + + Return the boolean from evaluating the given marker against the + environment. environment is an optional argument to override all or + part of the determined environment. + + The environment is determined from the current Python process. + """ + current_environment = cast("dict[str, str]", default_environment()) + current_environment["extra"] = "" + if environment is not None: + current_environment.update(environment) + # The API used to allow setting extra to None. We need to handle this + # case for backwards compatibility. + if current_environment["extra"] is None: + current_environment["extra"] = "" + + return _evaluate_markers( + self._markers, _repair_python_full_version(current_environment) + ) + + +def _repair_python_full_version(env: dict[str, str]) -> dict[str, str]: + """ + Work around platform.python_version() returning something that is not PEP 440 + compliant for non-tagged Python builds. + """ + if env["python_full_version"].endswith("+"): + env["python_full_version"] += "local" + return env diff --git a/setuptools/_vendor/packaging/metadata.py b/setuptools/_vendor/packaging/metadata.py new file mode 100644 index 0000000000..721f411cfc --- /dev/null +++ b/setuptools/_vendor/packaging/metadata.py @@ -0,0 +1,863 @@ +from __future__ import annotations + +import email.feedparser +import email.header +import email.message +import email.parser +import email.policy +import pathlib +import sys +import typing +from typing import ( + Any, + Callable, + Generic, + Literal, + TypedDict, + cast, +) + +from . import licenses, requirements, specifiers, utils +from . import version as version_module +from .licenses import NormalizedLicenseExpression + +T = typing.TypeVar("T") + + +if sys.version_info >= (3, 11): # pragma: no cover + ExceptionGroup = ExceptionGroup +else: # pragma: no cover + + class ExceptionGroup(Exception): + """A minimal implementation of :external:exc:`ExceptionGroup` from Python 3.11. + + If :external:exc:`ExceptionGroup` is already defined by Python itself, + that version is used instead. + """ + + message: str + exceptions: list[Exception] + + def __init__(self, message: str, exceptions: list[Exception]) -> None: + self.message = message + self.exceptions = exceptions + + def __repr__(self) -> str: + return f"{self.__class__.__name__}({self.message!r}, {self.exceptions!r})" + + +class InvalidMetadata(ValueError): + """A metadata field contains invalid data.""" + + field: str + """The name of the field that contains invalid data.""" + + def __init__(self, field: str, message: str) -> None: + self.field = field + super().__init__(message) + + +# The RawMetadata class attempts to make as few assumptions about the underlying +# serialization formats as possible. The idea is that as long as a serialization +# formats offer some very basic primitives in *some* way then we can support +# serializing to and from that format. +class RawMetadata(TypedDict, total=False): + """A dictionary of raw core metadata. + + Each field in core metadata maps to a key of this dictionary (when data is + provided). The key is lower-case and underscores are used instead of dashes + compared to the equivalent core metadata field. Any core metadata field that + can be specified multiple times or can hold multiple values in a single + field have a key with a plural name. See :class:`Metadata` whose attributes + match the keys of this dictionary. + + Core metadata fields that can be specified multiple times are stored as a + list or dict depending on which is appropriate for the field. Any fields + which hold multiple values in a single field are stored as a list. + + """ + + # Metadata 1.0 - PEP 241 + metadata_version: str + name: str + version: str + platforms: list[str] + summary: str + description: str + keywords: list[str] + home_page: str + author: str + author_email: str + license: str + + # Metadata 1.1 - PEP 314 + supported_platforms: list[str] + download_url: str + classifiers: list[str] + requires: list[str] + provides: list[str] + obsoletes: list[str] + + # Metadata 1.2 - PEP 345 + maintainer: str + maintainer_email: str + requires_dist: list[str] + provides_dist: list[str] + obsoletes_dist: list[str] + requires_python: str + requires_external: list[str] + project_urls: dict[str, str] + + # Metadata 2.0 + # PEP 426 attempted to completely revamp the metadata format + # but got stuck without ever being able to build consensus on + # it and ultimately ended up withdrawn. + # + # However, a number of tools had started emitting METADATA with + # `2.0` Metadata-Version, so for historical reasons, this version + # was skipped. + + # Metadata 2.1 - PEP 566 + description_content_type: str + provides_extra: list[str] + + # Metadata 2.2 - PEP 643 + dynamic: list[str] + + # Metadata 2.3 - PEP 685 + # No new fields were added in PEP 685, just some edge case were + # tightened up to provide better interoptability. + + # Metadata 2.4 - PEP 639 + license_expression: str + license_files: list[str] + + +_STRING_FIELDS = { + "author", + "author_email", + "description", + "description_content_type", + "download_url", + "home_page", + "license", + "license_expression", + "maintainer", + "maintainer_email", + "metadata_version", + "name", + "requires_python", + "summary", + "version", +} + +_LIST_FIELDS = { + "classifiers", + "dynamic", + "license_files", + "obsoletes", + "obsoletes_dist", + "platforms", + "provides", + "provides_dist", + "provides_extra", + "requires", + "requires_dist", + "requires_external", + "supported_platforms", +} + +_DICT_FIELDS = { + "project_urls", +} + + +def _parse_keywords(data: str) -> list[str]: + """Split a string of comma-separated keywords into a list of keywords.""" + return [k.strip() for k in data.split(",")] + + +def _parse_project_urls(data: list[str]) -> dict[str, str]: + """Parse a list of label/URL string pairings separated by a comma.""" + urls = {} + for pair in data: + # Our logic is slightly tricky here as we want to try and do + # *something* reasonable with malformed data. + # + # The main thing that we have to worry about, is data that does + # not have a ',' at all to split the label from the Value. There + # isn't a singular right answer here, and we will fail validation + # later on (if the caller is validating) so it doesn't *really* + # matter, but since the missing value has to be an empty str + # and our return value is dict[str, str], if we let the key + # be the missing value, then they'd have multiple '' values that + # overwrite each other in a accumulating dict. + # + # The other potentional issue is that it's possible to have the + # same label multiple times in the metadata, with no solid "right" + # answer with what to do in that case. As such, we'll do the only + # thing we can, which is treat the field as unparseable and add it + # to our list of unparsed fields. + parts = [p.strip() for p in pair.split(",", 1)] + parts.extend([""] * (max(0, 2 - len(parts)))) # Ensure 2 items + + # TODO: The spec doesn't say anything about if the keys should be + # considered case sensitive or not... logically they should + # be case-preserving and case-insensitive, but doing that + # would open up more cases where we might have duplicate + # entries. + label, url = parts + if label in urls: + # The label already exists in our set of urls, so this field + # is unparseable, and we can just add the whole thing to our + # unparseable data and stop processing it. + raise KeyError("duplicate labels in project urls") + urls[label] = url + + return urls + + +def _get_payload(msg: email.message.Message, source: bytes | str) -> str: + """Get the body of the message.""" + # If our source is a str, then our caller has managed encodings for us, + # and we don't need to deal with it. + if isinstance(source, str): + payload = msg.get_payload() + assert isinstance(payload, str) + return payload + # If our source is a bytes, then we're managing the encoding and we need + # to deal with it. + else: + bpayload = msg.get_payload(decode=True) + assert isinstance(bpayload, bytes) + try: + return bpayload.decode("utf8", "strict") + except UnicodeDecodeError as exc: + raise ValueError("payload in an invalid encoding") from exc + + +# The various parse_FORMAT functions here are intended to be as lenient as +# possible in their parsing, while still returning a correctly typed +# RawMetadata. +# +# To aid in this, we also generally want to do as little touching of the +# data as possible, except where there are possibly some historic holdovers +# that make valid data awkward to work with. +# +# While this is a lower level, intermediate format than our ``Metadata`` +# class, some light touch ups can make a massive difference in usability. + +# Map METADATA fields to RawMetadata. +_EMAIL_TO_RAW_MAPPING = { + "author": "author", + "author-email": "author_email", + "classifier": "classifiers", + "description": "description", + "description-content-type": "description_content_type", + "download-url": "download_url", + "dynamic": "dynamic", + "home-page": "home_page", + "keywords": "keywords", + "license": "license", + "license-expression": "license_expression", + "license-file": "license_files", + "maintainer": "maintainer", + "maintainer-email": "maintainer_email", + "metadata-version": "metadata_version", + "name": "name", + "obsoletes": "obsoletes", + "obsoletes-dist": "obsoletes_dist", + "platform": "platforms", + "project-url": "project_urls", + "provides": "provides", + "provides-dist": "provides_dist", + "provides-extra": "provides_extra", + "requires": "requires", + "requires-dist": "requires_dist", + "requires-external": "requires_external", + "requires-python": "requires_python", + "summary": "summary", + "supported-platform": "supported_platforms", + "version": "version", +} +_RAW_TO_EMAIL_MAPPING = {raw: email for email, raw in _EMAIL_TO_RAW_MAPPING.items()} + + +def parse_email(data: bytes | str) -> tuple[RawMetadata, dict[str, list[str]]]: + """Parse a distribution's metadata stored as email headers (e.g. from ``METADATA``). + + This function returns a two-item tuple of dicts. The first dict is of + recognized fields from the core metadata specification. Fields that can be + parsed and translated into Python's built-in types are converted + appropriately. All other fields are left as-is. Fields that are allowed to + appear multiple times are stored as lists. + + The second dict contains all other fields from the metadata. This includes + any unrecognized fields. It also includes any fields which are expected to + be parsed into a built-in type but were not formatted appropriately. Finally, + any fields that are expected to appear only once but are repeated are + included in this dict. + + """ + raw: dict[str, str | list[str] | dict[str, str]] = {} + unparsed: dict[str, list[str]] = {} + + if isinstance(data, str): + parsed = email.parser.Parser(policy=email.policy.compat32).parsestr(data) + else: + parsed = email.parser.BytesParser(policy=email.policy.compat32).parsebytes(data) + + # We have to wrap parsed.keys() in a set, because in the case of multiple + # values for a key (a list), the key will appear multiple times in the + # list of keys, but we're avoiding that by using get_all(). + for name in frozenset(parsed.keys()): + # Header names in RFC are case insensitive, so we'll normalize to all + # lower case to make comparisons easier. + name = name.lower() + + # We use get_all() here, even for fields that aren't multiple use, + # because otherwise someone could have e.g. two Name fields, and we + # would just silently ignore it rather than doing something about it. + headers = parsed.get_all(name) or [] + + # The way the email module works when parsing bytes is that it + # unconditionally decodes the bytes as ascii using the surrogateescape + # handler. When you pull that data back out (such as with get_all() ), + # it looks to see if the str has any surrogate escapes, and if it does + # it wraps it in a Header object instead of returning the string. + # + # As such, we'll look for those Header objects, and fix up the encoding. + value = [] + # Flag if we have run into any issues processing the headers, thus + # signalling that the data belongs in 'unparsed'. + valid_encoding = True + for h in headers: + # It's unclear if this can return more types than just a Header or + # a str, so we'll just assert here to make sure. + assert isinstance(h, (email.header.Header, str)) + + # If it's a header object, we need to do our little dance to get + # the real data out of it. In cases where there is invalid data + # we're going to end up with mojibake, but there's no obvious, good + # way around that without reimplementing parts of the Header object + # ourselves. + # + # That should be fine since, if mojibacked happens, this key is + # going into the unparsed dict anyways. + if isinstance(h, email.header.Header): + # The Header object stores it's data as chunks, and each chunk + # can be independently encoded, so we'll need to check each + # of them. + chunks: list[tuple[bytes, str | None]] = [] + for bin, encoding in email.header.decode_header(h): + try: + bin.decode("utf8", "strict") + except UnicodeDecodeError: + # Enable mojibake. + encoding = "latin1" + valid_encoding = False + else: + encoding = "utf8" + chunks.append((bin, encoding)) + + # Turn our chunks back into a Header object, then let that + # Header object do the right thing to turn them into a + # string for us. + value.append(str(email.header.make_header(chunks))) + # This is already a string, so just add it. + else: + value.append(h) + + # We've processed all of our values to get them into a list of str, + # but we may have mojibake data, in which case this is an unparsed + # field. + if not valid_encoding: + unparsed[name] = value + continue + + raw_name = _EMAIL_TO_RAW_MAPPING.get(name) + if raw_name is None: + # This is a bit of a weird situation, we've encountered a key that + # we don't know what it means, so we don't know whether it's meant + # to be a list or not. + # + # Since we can't really tell one way or another, we'll just leave it + # as a list, even though it may be a single item list, because that's + # what makes the most sense for email headers. + unparsed[name] = value + continue + + # If this is one of our string fields, then we'll check to see if our + # value is a list of a single item. If it is then we'll assume that + # it was emitted as a single string, and unwrap the str from inside + # the list. + # + # If it's any other kind of data, then we haven't the faintest clue + # what we should parse it as, and we have to just add it to our list + # of unparsed stuff. + if raw_name in _STRING_FIELDS and len(value) == 1: + raw[raw_name] = value[0] + # If this is one of our list of string fields, then we can just assign + # the value, since email *only* has strings, and our get_all() call + # above ensures that this is a list. + elif raw_name in _LIST_FIELDS: + raw[raw_name] = value + # Special Case: Keywords + # The keywords field is implemented in the metadata spec as a str, + # but it conceptually is a list of strings, and is serialized using + # ", ".join(keywords), so we'll do some light data massaging to turn + # this into what it logically is. + elif raw_name == "keywords" and len(value) == 1: + raw[raw_name] = _parse_keywords(value[0]) + # Special Case: Project-URL + # The project urls is implemented in the metadata spec as a list of + # specially-formatted strings that represent a key and a value, which + # is fundamentally a mapping, however the email format doesn't support + # mappings in a sane way, so it was crammed into a list of strings + # instead. + # + # We will do a little light data massaging to turn this into a map as + # it logically should be. + elif raw_name == "project_urls": + try: + raw[raw_name] = _parse_project_urls(value) + except KeyError: + unparsed[name] = value + # Nothing that we've done has managed to parse this, so it'll just + # throw it in our unparseable data and move on. + else: + unparsed[name] = value + + # We need to support getting the Description from the message payload in + # addition to getting it from the the headers. This does mean, though, there + # is the possibility of it being set both ways, in which case we put both + # in 'unparsed' since we don't know which is right. + try: + payload = _get_payload(parsed, data) + except ValueError: + unparsed.setdefault("description", []).append( + parsed.get_payload(decode=isinstance(data, bytes)) # type: ignore[call-overload] + ) + else: + if payload: + # Check to see if we've already got a description, if so then both + # it, and this body move to unparseable. + if "description" in raw: + description_header = cast(str, raw.pop("description")) + unparsed.setdefault("description", []).extend( + [description_header, payload] + ) + elif "description" in unparsed: + unparsed["description"].append(payload) + else: + raw["description"] = payload + + # We need to cast our `raw` to a metadata, because a TypedDict only support + # literal key names, but we're computing our key names on purpose, but the + # way this function is implemented, our `TypedDict` can only have valid key + # names. + return cast(RawMetadata, raw), unparsed + + +_NOT_FOUND = object() + + +# Keep the two values in sync. +_VALID_METADATA_VERSIONS = ["1.0", "1.1", "1.2", "2.1", "2.2", "2.3", "2.4"] +_MetadataVersion = Literal["1.0", "1.1", "1.2", "2.1", "2.2", "2.3", "2.4"] + +_REQUIRED_ATTRS = frozenset(["metadata_version", "name", "version"]) + + +class _Validator(Generic[T]): + """Validate a metadata field. + + All _process_*() methods correspond to a core metadata field. The method is + called with the field's raw value. If the raw value is valid it is returned + in its "enriched" form (e.g. ``version.Version`` for the ``Version`` field). + If the raw value is invalid, :exc:`InvalidMetadata` is raised (with a cause + as appropriate). + """ + + name: str + raw_name: str + added: _MetadataVersion + + def __init__( + self, + *, + added: _MetadataVersion = "1.0", + ) -> None: + self.added = added + + def __set_name__(self, _owner: Metadata, name: str) -> None: + self.name = name + self.raw_name = _RAW_TO_EMAIL_MAPPING[name] + + def __get__(self, instance: Metadata, _owner: type[Metadata]) -> T: + # With Python 3.8, the caching can be replaced with functools.cached_property(). + # No need to check the cache as attribute lookup will resolve into the + # instance's __dict__ before __get__ is called. + cache = instance.__dict__ + value = instance._raw.get(self.name) + + # To make the _process_* methods easier, we'll check if the value is None + # and if this field is NOT a required attribute, and if both of those + # things are true, we'll skip the the converter. This will mean that the + # converters never have to deal with the None union. + if self.name in _REQUIRED_ATTRS or value is not None: + try: + converter: Callable[[Any], T] = getattr(self, f"_process_{self.name}") + except AttributeError: + pass + else: + value = converter(value) + + cache[self.name] = value + try: + del instance._raw[self.name] # type: ignore[misc] + except KeyError: + pass + + return cast(T, value) + + def _invalid_metadata( + self, msg: str, cause: Exception | None = None + ) -> InvalidMetadata: + exc = InvalidMetadata( + self.raw_name, msg.format_map({"field": repr(self.raw_name)}) + ) + exc.__cause__ = cause + return exc + + def _process_metadata_version(self, value: str) -> _MetadataVersion: + # Implicitly makes Metadata-Version required. + if value not in _VALID_METADATA_VERSIONS: + raise self._invalid_metadata(f"{value!r} is not a valid metadata version") + return cast(_MetadataVersion, value) + + def _process_name(self, value: str) -> str: + if not value: + raise self._invalid_metadata("{field} is a required field") + # Validate the name as a side-effect. + try: + utils.canonicalize_name(value, validate=True) + except utils.InvalidName as exc: + raise self._invalid_metadata( + f"{value!r} is invalid for {{field}}", cause=exc + ) from exc + else: + return value + + def _process_version(self, value: str) -> version_module.Version: + if not value: + raise self._invalid_metadata("{field} is a required field") + try: + return version_module.parse(value) + except version_module.InvalidVersion as exc: + raise self._invalid_metadata( + f"{value!r} is invalid for {{field}}", cause=exc + ) from exc + + def _process_summary(self, value: str) -> str: + """Check the field contains no newlines.""" + if "\n" in value: + raise self._invalid_metadata("{field} must be a single line") + return value + + def _process_description_content_type(self, value: str) -> str: + content_types = {"text/plain", "text/x-rst", "text/markdown"} + message = email.message.EmailMessage() + message["content-type"] = value + + content_type, parameters = ( + # Defaults to `text/plain` if parsing failed. + message.get_content_type().lower(), + message["content-type"].params, + ) + # Check if content-type is valid or defaulted to `text/plain` and thus was + # not parseable. + if content_type not in content_types or content_type not in value.lower(): + raise self._invalid_metadata( + f"{{field}} must be one of {list(content_types)}, not {value!r}" + ) + + charset = parameters.get("charset", "UTF-8") + if charset != "UTF-8": + raise self._invalid_metadata( + f"{{field}} can only specify the UTF-8 charset, not {list(charset)}" + ) + + markdown_variants = {"GFM", "CommonMark"} + variant = parameters.get("variant", "GFM") # Use an acceptable default. + if content_type == "text/markdown" and variant not in markdown_variants: + raise self._invalid_metadata( + f"valid Markdown variants for {{field}} are {list(markdown_variants)}, " + f"not {variant!r}", + ) + return value + + def _process_dynamic(self, value: list[str]) -> list[str]: + for dynamic_field in map(str.lower, value): + if dynamic_field in {"name", "version", "metadata-version"}: + raise self._invalid_metadata( + f"{dynamic_field!r} is not allowed as a dynamic field" + ) + elif dynamic_field not in _EMAIL_TO_RAW_MAPPING: + raise self._invalid_metadata( + f"{dynamic_field!r} is not a valid dynamic field" + ) + return list(map(str.lower, value)) + + def _process_provides_extra( + self, + value: list[str], + ) -> list[utils.NormalizedName]: + normalized_names = [] + try: + for name in value: + normalized_names.append(utils.canonicalize_name(name, validate=True)) + except utils.InvalidName as exc: + raise self._invalid_metadata( + f"{name!r} is invalid for {{field}}", cause=exc + ) from exc + else: + return normalized_names + + def _process_requires_python(self, value: str) -> specifiers.SpecifierSet: + try: + return specifiers.SpecifierSet(value) + except specifiers.InvalidSpecifier as exc: + raise self._invalid_metadata( + f"{value!r} is invalid for {{field}}", cause=exc + ) from exc + + def _process_requires_dist( + self, + value: list[str], + ) -> list[requirements.Requirement]: + reqs = [] + try: + for req in value: + reqs.append(requirements.Requirement(req)) + except requirements.InvalidRequirement as exc: + raise self._invalid_metadata( + f"{req!r} is invalid for {{field}}", cause=exc + ) from exc + else: + return reqs + + def _process_license_expression( + self, value: str + ) -> NormalizedLicenseExpression | None: + try: + return licenses.canonicalize_license_expression(value) + except ValueError as exc: + raise self._invalid_metadata( + f"{value!r} is invalid for {{field}}", cause=exc + ) from exc + + def _process_license_files(self, value: list[str]) -> list[str]: + paths = [] + for path in value: + if ".." in path: + raise self._invalid_metadata( + f"{path!r} is invalid for {{field}}, " + "parent directory indicators are not allowed" + ) + if "*" in path: + raise self._invalid_metadata( + f"{path!r} is invalid for {{field}}, paths must be resolved" + ) + if ( + pathlib.PurePosixPath(path).is_absolute() + or pathlib.PureWindowsPath(path).is_absolute() + ): + raise self._invalid_metadata( + f"{path!r} is invalid for {{field}}, paths must be relative" + ) + if pathlib.PureWindowsPath(path).as_posix() != path: + raise self._invalid_metadata( + f"{path!r} is invalid for {{field}}, " + "paths must use '/' delimiter" + ) + paths.append(path) + return paths + + +class Metadata: + """Representation of distribution metadata. + + Compared to :class:`RawMetadata`, this class provides objects representing + metadata fields instead of only using built-in types. Any invalid metadata + will cause :exc:`InvalidMetadata` to be raised (with a + :py:attr:`~BaseException.__cause__` attribute as appropriate). + """ + + _raw: RawMetadata + + @classmethod + def from_raw(cls, data: RawMetadata, *, validate: bool = True) -> Metadata: + """Create an instance from :class:`RawMetadata`. + + If *validate* is true, all metadata will be validated. All exceptions + related to validation will be gathered and raised as an :class:`ExceptionGroup`. + """ + ins = cls() + ins._raw = data.copy() # Mutations occur due to caching enriched values. + + if validate: + exceptions: list[Exception] = [] + try: + metadata_version = ins.metadata_version + metadata_age = _VALID_METADATA_VERSIONS.index(metadata_version) + except InvalidMetadata as metadata_version_exc: + exceptions.append(metadata_version_exc) + metadata_version = None + + # Make sure to check for the fields that are present, the required + # fields (so their absence can be reported). + fields_to_check = frozenset(ins._raw) | _REQUIRED_ATTRS + # Remove fields that have already been checked. + fields_to_check -= {"metadata_version"} + + for key in fields_to_check: + try: + if metadata_version: + # Can't use getattr() as that triggers descriptor protocol which + # will fail due to no value for the instance argument. + try: + field_metadata_version = cls.__dict__[key].added + except KeyError: + exc = InvalidMetadata(key, f"unrecognized field: {key!r}") + exceptions.append(exc) + continue + field_age = _VALID_METADATA_VERSIONS.index( + field_metadata_version + ) + if field_age > metadata_age: + field = _RAW_TO_EMAIL_MAPPING[key] + exc = InvalidMetadata( + field, + f"{field} introduced in metadata version " + f"{field_metadata_version}, not {metadata_version}", + ) + exceptions.append(exc) + continue + getattr(ins, key) + except InvalidMetadata as exc: + exceptions.append(exc) + + if exceptions: + raise ExceptionGroup("invalid metadata", exceptions) + + return ins + + @classmethod + def from_email(cls, data: bytes | str, *, validate: bool = True) -> Metadata: + """Parse metadata from email headers. + + If *validate* is true, the metadata will be validated. All exceptions + related to validation will be gathered and raised as an :class:`ExceptionGroup`. + """ + raw, unparsed = parse_email(data) + + if validate: + exceptions: list[Exception] = [] + for unparsed_key in unparsed: + if unparsed_key in _EMAIL_TO_RAW_MAPPING: + message = f"{unparsed_key!r} has invalid data" + else: + message = f"unrecognized field: {unparsed_key!r}" + exceptions.append(InvalidMetadata(unparsed_key, message)) + + if exceptions: + raise ExceptionGroup("unparsed", exceptions) + + try: + return cls.from_raw(raw, validate=validate) + except ExceptionGroup as exc_group: + raise ExceptionGroup( + "invalid or unparsed metadata", exc_group.exceptions + ) from None + + metadata_version: _Validator[_MetadataVersion] = _Validator() + """:external:ref:`core-metadata-metadata-version` + (required; validated to be a valid metadata version)""" + # `name` is not normalized/typed to NormalizedName so as to provide access to + # the original/raw name. + name: _Validator[str] = _Validator() + """:external:ref:`core-metadata-name` + (required; validated using :func:`~packaging.utils.canonicalize_name` and its + *validate* parameter)""" + version: _Validator[version_module.Version] = _Validator() + """:external:ref:`core-metadata-version` (required)""" + dynamic: _Validator[list[str] | None] = _Validator( + added="2.2", + ) + """:external:ref:`core-metadata-dynamic` + (validated against core metadata field names and lowercased)""" + platforms: _Validator[list[str] | None] = _Validator() + """:external:ref:`core-metadata-platform`""" + supported_platforms: _Validator[list[str] | None] = _Validator(added="1.1") + """:external:ref:`core-metadata-supported-platform`""" + summary: _Validator[str | None] = _Validator() + """:external:ref:`core-metadata-summary` (validated to contain no newlines)""" + description: _Validator[str | None] = _Validator() # TODO 2.1: can be in body + """:external:ref:`core-metadata-description`""" + description_content_type: _Validator[str | None] = _Validator(added="2.1") + """:external:ref:`core-metadata-description-content-type` (validated)""" + keywords: _Validator[list[str] | None] = _Validator() + """:external:ref:`core-metadata-keywords`""" + home_page: _Validator[str | None] = _Validator() + """:external:ref:`core-metadata-home-page`""" + download_url: _Validator[str | None] = _Validator(added="1.1") + """:external:ref:`core-metadata-download-url`""" + author: _Validator[str | None] = _Validator() + """:external:ref:`core-metadata-author`""" + author_email: _Validator[str | None] = _Validator() + """:external:ref:`core-metadata-author-email`""" + maintainer: _Validator[str | None] = _Validator(added="1.2") + """:external:ref:`core-metadata-maintainer`""" + maintainer_email: _Validator[str | None] = _Validator(added="1.2") + """:external:ref:`core-metadata-maintainer-email`""" + license: _Validator[str | None] = _Validator() + """:external:ref:`core-metadata-license`""" + license_expression: _Validator[NormalizedLicenseExpression | None] = _Validator( + added="2.4" + ) + """:external:ref:`core-metadata-license-expression`""" + license_files: _Validator[list[str] | None] = _Validator(added="2.4") + """:external:ref:`core-metadata-license-file`""" + classifiers: _Validator[list[str] | None] = _Validator(added="1.1") + """:external:ref:`core-metadata-classifier`""" + requires_dist: _Validator[list[requirements.Requirement] | None] = _Validator( + added="1.2" + ) + """:external:ref:`core-metadata-requires-dist`""" + requires_python: _Validator[specifiers.SpecifierSet | None] = _Validator( + added="1.2" + ) + """:external:ref:`core-metadata-requires-python`""" + # Because `Requires-External` allows for non-PEP 440 version specifiers, we + # don't do any processing on the values. + requires_external: _Validator[list[str] | None] = _Validator(added="1.2") + """:external:ref:`core-metadata-requires-external`""" + project_urls: _Validator[dict[str, str] | None] = _Validator(added="1.2") + """:external:ref:`core-metadata-project-url`""" + # PEP 685 lets us raise an error if an extra doesn't pass `Name` validation + # regardless of metadata version. + provides_extra: _Validator[list[utils.NormalizedName] | None] = _Validator( + added="2.1", + ) + """:external:ref:`core-metadata-provides-extra`""" + provides_dist: _Validator[list[str] | None] = _Validator(added="1.2") + """:external:ref:`core-metadata-provides-dist`""" + obsoletes_dist: _Validator[list[str] | None] = _Validator(added="1.2") + """:external:ref:`core-metadata-obsoletes-dist`""" + requires: _Validator[list[str] | None] = _Validator(added="1.1") + """``Requires`` (deprecated)""" + provides: _Validator[list[str] | None] = _Validator(added="1.1") + """``Provides`` (deprecated)""" + obsoletes: _Validator[list[str] | None] = _Validator(added="1.1") + """``Obsoletes`` (deprecated)""" diff --git a/setuptools/_vendor/packaging/py.typed b/setuptools/_vendor/packaging/py.typed new file mode 100644 index 0000000000..e69de29bb2 diff --git a/setuptools/_vendor/packaging/requirements.py b/setuptools/_vendor/packaging/requirements.py new file mode 100644 index 0000000000..4e068c9567 --- /dev/null +++ b/setuptools/_vendor/packaging/requirements.py @@ -0,0 +1,91 @@ +# This file is dual licensed under the terms of the Apache License, Version +# 2.0, and the BSD License. See the LICENSE file in the root of this repository +# for complete details. +from __future__ import annotations + +from typing import Any, Iterator + +from ._parser import parse_requirement as _parse_requirement +from ._tokenizer import ParserSyntaxError +from .markers import Marker, _normalize_extra_values +from .specifiers import SpecifierSet +from .utils import canonicalize_name + + +class InvalidRequirement(ValueError): + """ + An invalid requirement was found, users should refer to PEP 508. + """ + + +class Requirement: + """Parse a requirement. + + Parse a given requirement string into its parts, such as name, specifier, + URL, and extras. Raises InvalidRequirement on a badly-formed requirement + string. + """ + + # TODO: Can we test whether something is contained within a requirement? + # If so how do we do that? Do we need to test against the _name_ of + # the thing as well as the version? What about the markers? + # TODO: Can we normalize the name and extra name? + + def __init__(self, requirement_string: str) -> None: + try: + parsed = _parse_requirement(requirement_string) + except ParserSyntaxError as e: + raise InvalidRequirement(str(e)) from e + + self.name: str = parsed.name + self.url: str | None = parsed.url or None + self.extras: set[str] = set(parsed.extras or []) + self.specifier: SpecifierSet = SpecifierSet(parsed.specifier) + self.marker: Marker | None = None + if parsed.marker is not None: + self.marker = Marker.__new__(Marker) + self.marker._markers = _normalize_extra_values(parsed.marker) + + def _iter_parts(self, name: str) -> Iterator[str]: + yield name + + if self.extras: + formatted_extras = ",".join(sorted(self.extras)) + yield f"[{formatted_extras}]" + + if self.specifier: + yield str(self.specifier) + + if self.url: + yield f"@ {self.url}" + if self.marker: + yield " " + + if self.marker: + yield f"; {self.marker}" + + def __str__(self) -> str: + return "".join(self._iter_parts(self.name)) + + def __repr__(self) -> str: + return f"" + + def __hash__(self) -> int: + return hash( + ( + self.__class__.__name__, + *self._iter_parts(canonicalize_name(self.name)), + ) + ) + + def __eq__(self, other: Any) -> bool: + if not isinstance(other, Requirement): + return NotImplemented + + return ( + canonicalize_name(self.name) == canonicalize_name(other.name) + and self.extras == other.extras + and self.specifier == other.specifier + and self.url == other.url + and self.marker == other.marker + ) diff --git a/setuptools/_vendor/packaging/specifiers.py b/setuptools/_vendor/packaging/specifiers.py new file mode 100644 index 0000000000..b30926af8b --- /dev/null +++ b/setuptools/_vendor/packaging/specifiers.py @@ -0,0 +1,1020 @@ +# This file is dual licensed under the terms of the Apache License, Version +# 2.0, and the BSD License. See the LICENSE file in the root of this repository +# for complete details. +""" +.. testsetup:: + + from packaging.specifiers import Specifier, SpecifierSet, InvalidSpecifier + from packaging.version import Version +""" + +from __future__ import annotations + +import abc +import itertools +import re +from typing import Callable, Iterable, Iterator, TypeVar, Union + +from .utils import canonicalize_version +from .version import Version + +UnparsedVersion = Union[Version, str] +UnparsedVersionVar = TypeVar("UnparsedVersionVar", bound=UnparsedVersion) +CallableOperator = Callable[[Version, str], bool] + + +def _coerce_version(version: UnparsedVersion) -> Version: + if not isinstance(version, Version): + version = Version(version) + return version + + +class InvalidSpecifier(ValueError): + """ + Raised when attempting to create a :class:`Specifier` with a specifier + string that is invalid. + + >>> Specifier("lolwat") + Traceback (most recent call last): + ... + packaging.specifiers.InvalidSpecifier: Invalid specifier: 'lolwat' + """ + + +class BaseSpecifier(metaclass=abc.ABCMeta): + @abc.abstractmethod + def __str__(self) -> str: + """ + Returns the str representation of this Specifier-like object. This + should be representative of the Specifier itself. + """ + + @abc.abstractmethod + def __hash__(self) -> int: + """ + Returns a hash value for this Specifier-like object. + """ + + @abc.abstractmethod + def __eq__(self, other: object) -> bool: + """ + Returns a boolean representing whether or not the two Specifier-like + objects are equal. + + :param other: The other object to check against. + """ + + @property + @abc.abstractmethod + def prereleases(self) -> bool | None: + """Whether or not pre-releases as a whole are allowed. + + This can be set to either ``True`` or ``False`` to explicitly enable or disable + prereleases or it can be set to ``None`` (the default) to use default semantics. + """ + + @prereleases.setter + def prereleases(self, value: bool) -> None: + """Setter for :attr:`prereleases`. + + :param value: The value to set. + """ + + @abc.abstractmethod + def contains(self, item: str, prereleases: bool | None = None) -> bool: + """ + Determines if the given item is contained within this specifier. + """ + + @abc.abstractmethod + def filter( + self, iterable: Iterable[UnparsedVersionVar], prereleases: bool | None = None + ) -> Iterator[UnparsedVersionVar]: + """ + Takes an iterable of items and filters them so that only items which + are contained within this specifier are allowed in it. + """ + + +class Specifier(BaseSpecifier): + """This class abstracts handling of version specifiers. + + .. tip:: + + It is generally not required to instantiate this manually. You should instead + prefer to work with :class:`SpecifierSet` instead, which can parse + comma-separated version specifiers (which is what package metadata contains). + """ + + _operator_regex_str = r""" + (?P(~=|==|!=|<=|>=|<|>|===)) + """ + _version_regex_str = r""" + (?P + (?: + # The identity operators allow for an escape hatch that will + # do an exact string match of the version you wish to install. + # This will not be parsed by PEP 440 and we cannot determine + # any semantic meaning from it. This operator is discouraged + # but included entirely as an escape hatch. + (?<====) # Only match for the identity operator + \s* + [^\s;)]* # The arbitrary version can be just about anything, + # we match everything except for whitespace, a + # semi-colon for marker support, and a closing paren + # since versions can be enclosed in them. + ) + | + (?: + # The (non)equality operators allow for wild card and local + # versions to be specified so we have to define these two + # operators separately to enable that. + (?<===|!=) # Only match for equals and not equals + + \s* + v? + (?:[0-9]+!)? # epoch + [0-9]+(?:\.[0-9]+)* # release + + # You cannot use a wild card and a pre-release, post-release, a dev or + # local version together so group them with a | and make them optional. + (?: + \.\* # Wild card syntax of .* + | + (?: # pre release + [-_\.]? + (alpha|beta|preview|pre|a|b|c|rc) + [-_\.]? + [0-9]* + )? + (?: # post release + (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*) + )? + (?:[-_\.]?dev[-_\.]?[0-9]*)? # dev release + (?:\+[a-z0-9]+(?:[-_\.][a-z0-9]+)*)? # local + )? + ) + | + (?: + # The compatible operator requires at least two digits in the + # release segment. + (?<=~=) # Only match for the compatible operator + + \s* + v? + (?:[0-9]+!)? # epoch + [0-9]+(?:\.[0-9]+)+ # release (We have a + instead of a *) + (?: # pre release + [-_\.]? + (alpha|beta|preview|pre|a|b|c|rc) + [-_\.]? + [0-9]* + )? + (?: # post release + (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*) + )? + (?:[-_\.]?dev[-_\.]?[0-9]*)? # dev release + ) + | + (?: + # All other operators only allow a sub set of what the + # (non)equality operators do. Specifically they do not allow + # local versions to be specified nor do they allow the prefix + # matching wild cards. + (?=": "greater_than_equal", + "<": "less_than", + ">": "greater_than", + "===": "arbitrary", + } + + def __init__(self, spec: str = "", prereleases: bool | None = None) -> None: + """Initialize a Specifier instance. + + :param spec: + The string representation of a specifier which will be parsed and + normalized before use. + :param prereleases: + This tells the specifier if it should accept prerelease versions if + applicable or not. The default of ``None`` will autodetect it from the + given specifiers. + :raises InvalidSpecifier: + If the given specifier is invalid (i.e. bad syntax). + """ + match = self._regex.search(spec) + if not match: + raise InvalidSpecifier(f"Invalid specifier: {spec!r}") + + self._spec: tuple[str, str] = ( + match.group("operator").strip(), + match.group("version").strip(), + ) + + # Store whether or not this Specifier should accept prereleases + self._prereleases = prereleases + + # https://github.com/python/mypy/pull/13475#pullrequestreview-1079784515 + @property # type: ignore[override] + def prereleases(self) -> bool: + # If there is an explicit prereleases set for this, then we'll just + # blindly use that. + if self._prereleases is not None: + return self._prereleases + + # Look at all of our specifiers and determine if they are inclusive + # operators, and if they are if they are including an explicit + # prerelease. + operator, version = self._spec + if operator in ["==", ">=", "<=", "~=", "===", ">", "<"]: + # The == specifier can include a trailing .*, if it does we + # want to remove before parsing. + if operator == "==" and version.endswith(".*"): + version = version[:-2] + + # Parse the version, and if it is a pre-release than this + # specifier allows pre-releases. + if Version(version).is_prerelease: + return True + + return False + + @prereleases.setter + def prereleases(self, value: bool) -> None: + self._prereleases = value + + @property + def operator(self) -> str: + """The operator of this specifier. + + >>> Specifier("==1.2.3").operator + '==' + """ + return self._spec[0] + + @property + def version(self) -> str: + """The version of this specifier. + + >>> Specifier("==1.2.3").version + '1.2.3' + """ + return self._spec[1] + + def __repr__(self) -> str: + """A representation of the Specifier that shows all internal state. + + >>> Specifier('>=1.0.0') + =1.0.0')> + >>> Specifier('>=1.0.0', prereleases=False) + =1.0.0', prereleases=False)> + >>> Specifier('>=1.0.0', prereleases=True) + =1.0.0', prereleases=True)> + """ + pre = ( + f", prereleases={self.prereleases!r}" + if self._prereleases is not None + else "" + ) + + return f"<{self.__class__.__name__}({str(self)!r}{pre})>" + + def __str__(self) -> str: + """A string representation of the Specifier that can be round-tripped. + + >>> str(Specifier('>=1.0.0')) + '>=1.0.0' + >>> str(Specifier('>=1.0.0', prereleases=False)) + '>=1.0.0' + """ + return "{}{}".format(*self._spec) + + @property + def _canonical_spec(self) -> tuple[str, str]: + canonical_version = canonicalize_version( + self._spec[1], + strip_trailing_zero=(self._spec[0] != "~="), + ) + return self._spec[0], canonical_version + + def __hash__(self) -> int: + return hash(self._canonical_spec) + + def __eq__(self, other: object) -> bool: + """Whether or not the two Specifier-like objects are equal. + + :param other: The other object to check against. + + The value of :attr:`prereleases` is ignored. + + >>> Specifier("==1.2.3") == Specifier("== 1.2.3.0") + True + >>> (Specifier("==1.2.3", prereleases=False) == + ... Specifier("==1.2.3", prereleases=True)) + True + >>> Specifier("==1.2.3") == "==1.2.3" + True + >>> Specifier("==1.2.3") == Specifier("==1.2.4") + False + >>> Specifier("==1.2.3") == Specifier("~=1.2.3") + False + """ + if isinstance(other, str): + try: + other = self.__class__(str(other)) + except InvalidSpecifier: + return NotImplemented + elif not isinstance(other, self.__class__): + return NotImplemented + + return self._canonical_spec == other._canonical_spec + + def _get_operator(self, op: str) -> CallableOperator: + operator_callable: CallableOperator = getattr( + self, f"_compare_{self._operators[op]}" + ) + return operator_callable + + def _compare_compatible(self, prospective: Version, spec: str) -> bool: + # Compatible releases have an equivalent combination of >= and ==. That + # is that ~=2.2 is equivalent to >=2.2,==2.*. This allows us to + # implement this in terms of the other specifiers instead of + # implementing it ourselves. The only thing we need to do is construct + # the other specifiers. + + # We want everything but the last item in the version, but we want to + # ignore suffix segments. + prefix = _version_join( + list(itertools.takewhile(_is_not_suffix, _version_split(spec)))[:-1] + ) + + # Add the prefix notation to the end of our string + prefix += ".*" + + return self._get_operator(">=")(prospective, spec) and self._get_operator("==")( + prospective, prefix + ) + + def _compare_equal(self, prospective: Version, spec: str) -> bool: + # We need special logic to handle prefix matching + if spec.endswith(".*"): + # In the case of prefix matching we want to ignore local segment. + normalized_prospective = canonicalize_version( + prospective.public, strip_trailing_zero=False + ) + # Get the normalized version string ignoring the trailing .* + normalized_spec = canonicalize_version(spec[:-2], strip_trailing_zero=False) + # Split the spec out by bangs and dots, and pretend that there is + # an implicit dot in between a release segment and a pre-release segment. + split_spec = _version_split(normalized_spec) + + # Split the prospective version out by bangs and dots, and pretend + # that there is an implicit dot in between a release segment and + # a pre-release segment. + split_prospective = _version_split(normalized_prospective) + + # 0-pad the prospective version before shortening it to get the correct + # shortened version. + padded_prospective, _ = _pad_version(split_prospective, split_spec) + + # Shorten the prospective version to be the same length as the spec + # so that we can determine if the specifier is a prefix of the + # prospective version or not. + shortened_prospective = padded_prospective[: len(split_spec)] + + return shortened_prospective == split_spec + else: + # Convert our spec string into a Version + spec_version = Version(spec) + + # If the specifier does not have a local segment, then we want to + # act as if the prospective version also does not have a local + # segment. + if not spec_version.local: + prospective = Version(prospective.public) + + return prospective == spec_version + + def _compare_not_equal(self, prospective: Version, spec: str) -> bool: + return not self._compare_equal(prospective, spec) + + def _compare_less_than_equal(self, prospective: Version, spec: str) -> bool: + # NB: Local version identifiers are NOT permitted in the version + # specifier, so local version labels can be universally removed from + # the prospective version. + return Version(prospective.public) <= Version(spec) + + def _compare_greater_than_equal(self, prospective: Version, spec: str) -> bool: + # NB: Local version identifiers are NOT permitted in the version + # specifier, so local version labels can be universally removed from + # the prospective version. + return Version(prospective.public) >= Version(spec) + + def _compare_less_than(self, prospective: Version, spec_str: str) -> bool: + # Convert our spec to a Version instance, since we'll want to work with + # it as a version. + spec = Version(spec_str) + + # Check to see if the prospective version is less than the spec + # version. If it's not we can short circuit and just return False now + # instead of doing extra unneeded work. + if not prospective < spec: + return False + + # This special case is here so that, unless the specifier itself + # includes is a pre-release version, that we do not accept pre-release + # versions for the version mentioned in the specifier (e.g. <3.1 should + # not match 3.1.dev0, but should match 3.0.dev0). + if not spec.is_prerelease and prospective.is_prerelease: + if Version(prospective.base_version) == Version(spec.base_version): + return False + + # If we've gotten to here, it means that prospective version is both + # less than the spec version *and* it's not a pre-release of the same + # version in the spec. + return True + + def _compare_greater_than(self, prospective: Version, spec_str: str) -> bool: + # Convert our spec to a Version instance, since we'll want to work with + # it as a version. + spec = Version(spec_str) + + # Check to see if the prospective version is greater than the spec + # version. If it's not we can short circuit and just return False now + # instead of doing extra unneeded work. + if not prospective > spec: + return False + + # This special case is here so that, unless the specifier itself + # includes is a post-release version, that we do not accept + # post-release versions for the version mentioned in the specifier + # (e.g. >3.1 should not match 3.0.post0, but should match 3.2.post0). + if not spec.is_postrelease and prospective.is_postrelease: + if Version(prospective.base_version) == Version(spec.base_version): + return False + + # Ensure that we do not allow a local version of the version mentioned + # in the specifier, which is technically greater than, to match. + if prospective.local is not None: + if Version(prospective.base_version) == Version(spec.base_version): + return False + + # If we've gotten to here, it means that prospective version is both + # greater than the spec version *and* it's not a pre-release of the + # same version in the spec. + return True + + def _compare_arbitrary(self, prospective: Version, spec: str) -> bool: + return str(prospective).lower() == str(spec).lower() + + def __contains__(self, item: str | Version) -> bool: + """Return whether or not the item is contained in this specifier. + + :param item: The item to check for. + + This is used for the ``in`` operator and behaves the same as + :meth:`contains` with no ``prereleases`` argument passed. + + >>> "1.2.3" in Specifier(">=1.2.3") + True + >>> Version("1.2.3") in Specifier(">=1.2.3") + True + >>> "1.0.0" in Specifier(">=1.2.3") + False + >>> "1.3.0a1" in Specifier(">=1.2.3") + False + >>> "1.3.0a1" in Specifier(">=1.2.3", prereleases=True) + True + """ + return self.contains(item) + + def contains(self, item: UnparsedVersion, prereleases: bool | None = None) -> bool: + """Return whether or not the item is contained in this specifier. + + :param item: + The item to check for, which can be a version string or a + :class:`Version` instance. + :param prereleases: + Whether or not to match prereleases with this Specifier. If set to + ``None`` (the default), it uses :attr:`prereleases` to determine + whether or not prereleases are allowed. + + >>> Specifier(">=1.2.3").contains("1.2.3") + True + >>> Specifier(">=1.2.3").contains(Version("1.2.3")) + True + >>> Specifier(">=1.2.3").contains("1.0.0") + False + >>> Specifier(">=1.2.3").contains("1.3.0a1") + False + >>> Specifier(">=1.2.3", prereleases=True).contains("1.3.0a1") + True + >>> Specifier(">=1.2.3").contains("1.3.0a1", prereleases=True) + True + """ + + # Determine if prereleases are to be allowed or not. + if prereleases is None: + prereleases = self.prereleases + + # Normalize item to a Version, this allows us to have a shortcut for + # "2.0" in Specifier(">=2") + normalized_item = _coerce_version(item) + + # Determine if we should be supporting prereleases in this specifier + # or not, if we do not support prereleases than we can short circuit + # logic if this version is a prereleases. + if normalized_item.is_prerelease and not prereleases: + return False + + # Actually do the comparison to determine if this item is contained + # within this Specifier or not. + operator_callable: CallableOperator = self._get_operator(self.operator) + return operator_callable(normalized_item, self.version) + + def filter( + self, iterable: Iterable[UnparsedVersionVar], prereleases: bool | None = None + ) -> Iterator[UnparsedVersionVar]: + """Filter items in the given iterable, that match the specifier. + + :param iterable: + An iterable that can contain version strings and :class:`Version` instances. + The items in the iterable will be filtered according to the specifier. + :param prereleases: + Whether or not to allow prereleases in the returned iterator. If set to + ``None`` (the default), it will be intelligently decide whether to allow + prereleases or not (based on the :attr:`prereleases` attribute, and + whether the only versions matching are prereleases). + + This method is smarter than just ``filter(Specifier().contains, [...])`` + because it implements the rule from :pep:`440` that a prerelease item + SHOULD be accepted if no other versions match the given specifier. + + >>> list(Specifier(">=1.2.3").filter(["1.2", "1.3", "1.5a1"])) + ['1.3'] + >>> list(Specifier(">=1.2.3").filter(["1.2", "1.2.3", "1.3", Version("1.4")])) + ['1.2.3', '1.3', ] + >>> list(Specifier(">=1.2.3").filter(["1.2", "1.5a1"])) + ['1.5a1'] + >>> list(Specifier(">=1.2.3").filter(["1.3", "1.5a1"], prereleases=True)) + ['1.3', '1.5a1'] + >>> list(Specifier(">=1.2.3", prereleases=True).filter(["1.3", "1.5a1"])) + ['1.3', '1.5a1'] + """ + + yielded = False + found_prereleases = [] + + kw = {"prereleases": prereleases if prereleases is not None else True} + + # Attempt to iterate over all the values in the iterable and if any of + # them match, yield them. + for version in iterable: + parsed_version = _coerce_version(version) + + if self.contains(parsed_version, **kw): + # If our version is a prerelease, and we were not set to allow + # prereleases, then we'll store it for later in case nothing + # else matches this specifier. + if parsed_version.is_prerelease and not ( + prereleases or self.prereleases + ): + found_prereleases.append(version) + # Either this is not a prerelease, or we should have been + # accepting prereleases from the beginning. + else: + yielded = True + yield version + + # Now that we've iterated over everything, determine if we've yielded + # any values, and if we have not and we have any prereleases stored up + # then we will go ahead and yield the prereleases. + if not yielded and found_prereleases: + for version in found_prereleases: + yield version + + +_prefix_regex = re.compile(r"^([0-9]+)((?:a|b|c|rc)[0-9]+)$") + + +def _version_split(version: str) -> list[str]: + """Split version into components. + + The split components are intended for version comparison. The logic does + not attempt to retain the original version string, so joining the + components back with :func:`_version_join` may not produce the original + version string. + """ + result: list[str] = [] + + epoch, _, rest = version.rpartition("!") + result.append(epoch or "0") + + for item in rest.split("."): + match = _prefix_regex.search(item) + if match: + result.extend(match.groups()) + else: + result.append(item) + return result + + +def _version_join(components: list[str]) -> str: + """Join split version components into a version string. + + This function assumes the input came from :func:`_version_split`, where the + first component must be the epoch (either empty or numeric), and all other + components numeric. + """ + epoch, *rest = components + return f"{epoch}!{'.'.join(rest)}" + + +def _is_not_suffix(segment: str) -> bool: + return not any( + segment.startswith(prefix) for prefix in ("dev", "a", "b", "rc", "post") + ) + + +def _pad_version(left: list[str], right: list[str]) -> tuple[list[str], list[str]]: + left_split, right_split = [], [] + + # Get the release segment of our versions + left_split.append(list(itertools.takewhile(lambda x: x.isdigit(), left))) + right_split.append(list(itertools.takewhile(lambda x: x.isdigit(), right))) + + # Get the rest of our versions + left_split.append(left[len(left_split[0]) :]) + right_split.append(right[len(right_split[0]) :]) + + # Insert our padding + left_split.insert(1, ["0"] * max(0, len(right_split[0]) - len(left_split[0]))) + right_split.insert(1, ["0"] * max(0, len(left_split[0]) - len(right_split[0]))) + + return ( + list(itertools.chain.from_iterable(left_split)), + list(itertools.chain.from_iterable(right_split)), + ) + + +class SpecifierSet(BaseSpecifier): + """This class abstracts handling of a set of version specifiers. + + It can be passed a single specifier (``>=3.0``), a comma-separated list of + specifiers (``>=3.0,!=3.1``), or no specifier at all. + """ + + def __init__( + self, + specifiers: str | Iterable[Specifier] = "", + prereleases: bool | None = None, + ) -> None: + """Initialize a SpecifierSet instance. + + :param specifiers: + The string representation of a specifier or a comma-separated list of + specifiers which will be parsed and normalized before use. + May also be an iterable of ``Specifier`` instances, which will be used + as is. + :param prereleases: + This tells the SpecifierSet if it should accept prerelease versions if + applicable or not. The default of ``None`` will autodetect it from the + given specifiers. + + :raises InvalidSpecifier: + If the given ``specifiers`` are not parseable than this exception will be + raised. + """ + + if isinstance(specifiers, str): + # Split on `,` to break each individual specifier into its own item, and + # strip each item to remove leading/trailing whitespace. + split_specifiers = [s.strip() for s in specifiers.split(",") if s.strip()] + + # Make each individual specifier a Specifier and save in a frozen set + # for later. + self._specs = frozenset(map(Specifier, split_specifiers)) + else: + # Save the supplied specifiers in a frozen set. + self._specs = frozenset(specifiers) + + # Store our prereleases value so we can use it later to determine if + # we accept prereleases or not. + self._prereleases = prereleases + + @property + def prereleases(self) -> bool | None: + # If we have been given an explicit prerelease modifier, then we'll + # pass that through here. + if self._prereleases is not None: + return self._prereleases + + # If we don't have any specifiers, and we don't have a forced value, + # then we'll just return None since we don't know if this should have + # pre-releases or not. + if not self._specs: + return None + + # Otherwise we'll see if any of the given specifiers accept + # prereleases, if any of them do we'll return True, otherwise False. + return any(s.prereleases for s in self._specs) + + @prereleases.setter + def prereleases(self, value: bool) -> None: + self._prereleases = value + + def __repr__(self) -> str: + """A representation of the specifier set that shows all internal state. + + Note that the ordering of the individual specifiers within the set may not + match the input string. + + >>> SpecifierSet('>=1.0.0,!=2.0.0') + =1.0.0')> + >>> SpecifierSet('>=1.0.0,!=2.0.0', prereleases=False) + =1.0.0', prereleases=False)> + >>> SpecifierSet('>=1.0.0,!=2.0.0', prereleases=True) + =1.0.0', prereleases=True)> + """ + pre = ( + f", prereleases={self.prereleases!r}" + if self._prereleases is not None + else "" + ) + + return f"" + + def __str__(self) -> str: + """A string representation of the specifier set that can be round-tripped. + + Note that the ordering of the individual specifiers within the set may not + match the input string. + + >>> str(SpecifierSet(">=1.0.0,!=1.0.1")) + '!=1.0.1,>=1.0.0' + >>> str(SpecifierSet(">=1.0.0,!=1.0.1", prereleases=False)) + '!=1.0.1,>=1.0.0' + """ + return ",".join(sorted(str(s) for s in self._specs)) + + def __hash__(self) -> int: + return hash(self._specs) + + def __and__(self, other: SpecifierSet | str) -> SpecifierSet: + """Return a SpecifierSet which is a combination of the two sets. + + :param other: The other object to combine with. + + >>> SpecifierSet(">=1.0.0,!=1.0.1") & '<=2.0.0,!=2.0.1' + =1.0.0')> + >>> SpecifierSet(">=1.0.0,!=1.0.1") & SpecifierSet('<=2.0.0,!=2.0.1') + =1.0.0')> + """ + if isinstance(other, str): + other = SpecifierSet(other) + elif not isinstance(other, SpecifierSet): + return NotImplemented + + specifier = SpecifierSet() + specifier._specs = frozenset(self._specs | other._specs) + + if self._prereleases is None and other._prereleases is not None: + specifier._prereleases = other._prereleases + elif self._prereleases is not None and other._prereleases is None: + specifier._prereleases = self._prereleases + elif self._prereleases == other._prereleases: + specifier._prereleases = self._prereleases + else: + raise ValueError( + "Cannot combine SpecifierSets with True and False prerelease " + "overrides." + ) + + return specifier + + def __eq__(self, other: object) -> bool: + """Whether or not the two SpecifierSet-like objects are equal. + + :param other: The other object to check against. + + The value of :attr:`prereleases` is ignored. + + >>> SpecifierSet(">=1.0.0,!=1.0.1") == SpecifierSet(">=1.0.0,!=1.0.1") + True + >>> (SpecifierSet(">=1.0.0,!=1.0.1", prereleases=False) == + ... SpecifierSet(">=1.0.0,!=1.0.1", prereleases=True)) + True + >>> SpecifierSet(">=1.0.0,!=1.0.1") == ">=1.0.0,!=1.0.1" + True + >>> SpecifierSet(">=1.0.0,!=1.0.1") == SpecifierSet(">=1.0.0") + False + >>> SpecifierSet(">=1.0.0,!=1.0.1") == SpecifierSet(">=1.0.0,!=1.0.2") + False + """ + if isinstance(other, (str, Specifier)): + other = SpecifierSet(str(other)) + elif not isinstance(other, SpecifierSet): + return NotImplemented + + return self._specs == other._specs + + def __len__(self) -> int: + """Returns the number of specifiers in this specifier set.""" + return len(self._specs) + + def __iter__(self) -> Iterator[Specifier]: + """ + Returns an iterator over all the underlying :class:`Specifier` instances + in this specifier set. + + >>> sorted(SpecifierSet(">=1.0.0,!=1.0.1"), key=str) + [, =1.0.0')>] + """ + return iter(self._specs) + + def __contains__(self, item: UnparsedVersion) -> bool: + """Return whether or not the item is contained in this specifier. + + :param item: The item to check for. + + This is used for the ``in`` operator and behaves the same as + :meth:`contains` with no ``prereleases`` argument passed. + + >>> "1.2.3" in SpecifierSet(">=1.0.0,!=1.0.1") + True + >>> Version("1.2.3") in SpecifierSet(">=1.0.0,!=1.0.1") + True + >>> "1.0.1" in SpecifierSet(">=1.0.0,!=1.0.1") + False + >>> "1.3.0a1" in SpecifierSet(">=1.0.0,!=1.0.1") + False + >>> "1.3.0a1" in SpecifierSet(">=1.0.0,!=1.0.1", prereleases=True) + True + """ + return self.contains(item) + + def contains( + self, + item: UnparsedVersion, + prereleases: bool | None = None, + installed: bool | None = None, + ) -> bool: + """Return whether or not the item is contained in this SpecifierSet. + + :param item: + The item to check for, which can be a version string or a + :class:`Version` instance. + :param prereleases: + Whether or not to match prereleases with this SpecifierSet. If set to + ``None`` (the default), it uses :attr:`prereleases` to determine + whether or not prereleases are allowed. + + >>> SpecifierSet(">=1.0.0,!=1.0.1").contains("1.2.3") + True + >>> SpecifierSet(">=1.0.0,!=1.0.1").contains(Version("1.2.3")) + True + >>> SpecifierSet(">=1.0.0,!=1.0.1").contains("1.0.1") + False + >>> SpecifierSet(">=1.0.0,!=1.0.1").contains("1.3.0a1") + False + >>> SpecifierSet(">=1.0.0,!=1.0.1", prereleases=True).contains("1.3.0a1") + True + >>> SpecifierSet(">=1.0.0,!=1.0.1").contains("1.3.0a1", prereleases=True) + True + """ + # Ensure that our item is a Version instance. + if not isinstance(item, Version): + item = Version(item) + + # Determine if we're forcing a prerelease or not, if we're not forcing + # one for this particular filter call, then we'll use whatever the + # SpecifierSet thinks for whether or not we should support prereleases. + if prereleases is None: + prereleases = self.prereleases + + # We can determine if we're going to allow pre-releases by looking to + # see if any of the underlying items supports them. If none of them do + # and this item is a pre-release then we do not allow it and we can + # short circuit that here. + # Note: This means that 1.0.dev1 would not be contained in something + # like >=1.0.devabc however it would be in >=1.0.debabc,>0.0.dev0 + if not prereleases and item.is_prerelease: + return False + + if installed and item.is_prerelease: + item = Version(item.base_version) + + # We simply dispatch to the underlying specs here to make sure that the + # given version is contained within all of them. + # Note: This use of all() here means that an empty set of specifiers + # will always return True, this is an explicit design decision. + return all(s.contains(item, prereleases=prereleases) for s in self._specs) + + def filter( + self, iterable: Iterable[UnparsedVersionVar], prereleases: bool | None = None + ) -> Iterator[UnparsedVersionVar]: + """Filter items in the given iterable, that match the specifiers in this set. + + :param iterable: + An iterable that can contain version strings and :class:`Version` instances. + The items in the iterable will be filtered according to the specifier. + :param prereleases: + Whether or not to allow prereleases in the returned iterator. If set to + ``None`` (the default), it will be intelligently decide whether to allow + prereleases or not (based on the :attr:`prereleases` attribute, and + whether the only versions matching are prereleases). + + This method is smarter than just ``filter(SpecifierSet(...).contains, [...])`` + because it implements the rule from :pep:`440` that a prerelease item + SHOULD be accepted if no other versions match the given specifier. + + >>> list(SpecifierSet(">=1.2.3").filter(["1.2", "1.3", "1.5a1"])) + ['1.3'] + >>> list(SpecifierSet(">=1.2.3").filter(["1.2", "1.3", Version("1.4")])) + ['1.3', ] + >>> list(SpecifierSet(">=1.2.3").filter(["1.2", "1.5a1"])) + [] + >>> list(SpecifierSet(">=1.2.3").filter(["1.3", "1.5a1"], prereleases=True)) + ['1.3', '1.5a1'] + >>> list(SpecifierSet(">=1.2.3", prereleases=True).filter(["1.3", "1.5a1"])) + ['1.3', '1.5a1'] + + An "empty" SpecifierSet will filter items based on the presence of prerelease + versions in the set. + + >>> list(SpecifierSet("").filter(["1.3", "1.5a1"])) + ['1.3'] + >>> list(SpecifierSet("").filter(["1.5a1"])) + ['1.5a1'] + >>> list(SpecifierSet("", prereleases=True).filter(["1.3", "1.5a1"])) + ['1.3', '1.5a1'] + >>> list(SpecifierSet("").filter(["1.3", "1.5a1"], prereleases=True)) + ['1.3', '1.5a1'] + """ + # Determine if we're forcing a prerelease or not, if we're not forcing + # one for this particular filter call, then we'll use whatever the + # SpecifierSet thinks for whether or not we should support prereleases. + if prereleases is None: + prereleases = self.prereleases + + # If we have any specifiers, then we want to wrap our iterable in the + # filter method for each one, this will act as a logical AND amongst + # each specifier. + if self._specs: + for spec in self._specs: + iterable = spec.filter(iterable, prereleases=bool(prereleases)) + return iter(iterable) + # If we do not have any specifiers, then we need to have a rough filter + # which will filter out any pre-releases, unless there are no final + # releases. + else: + filtered: list[UnparsedVersionVar] = [] + found_prereleases: list[UnparsedVersionVar] = [] + + for item in iterable: + parsed_version = _coerce_version(item) + + # Store any item which is a pre-release for later unless we've + # already found a final version or we are accepting prereleases + if parsed_version.is_prerelease and not prereleases: + if not filtered: + found_prereleases.append(item) + else: + filtered.append(item) + + # If we've found no items except for pre-releases, then we'll go + # ahead and use the pre-releases + if not filtered and found_prereleases and prereleases is None: + return iter(found_prereleases) + + return iter(filtered) diff --git a/setuptools/_vendor/packaging/tags.py b/setuptools/_vendor/packaging/tags.py new file mode 100644 index 0000000000..f5903402ab --- /dev/null +++ b/setuptools/_vendor/packaging/tags.py @@ -0,0 +1,617 @@ +# This file is dual licensed under the terms of the Apache License, Version +# 2.0, and the BSD License. See the LICENSE file in the root of this repository +# for complete details. + +from __future__ import annotations + +import logging +import platform +import re +import struct +import subprocess +import sys +import sysconfig +from importlib.machinery import EXTENSION_SUFFIXES +from typing import ( + Iterable, + Iterator, + Sequence, + Tuple, + cast, +) + +from . import _manylinux, _musllinux + +logger = logging.getLogger(__name__) + +PythonVersion = Sequence[int] +AppleVersion = Tuple[int, int] + +INTERPRETER_SHORT_NAMES: dict[str, str] = { + "python": "py", # Generic. + "cpython": "cp", + "pypy": "pp", + "ironpython": "ip", + "jython": "jy", +} + + +_32_BIT_INTERPRETER = struct.calcsize("P") == 4 + + +class Tag: + """ + A representation of the tag triple for a wheel. + + Instances are considered immutable and thus are hashable. Equality checking + is also supported. + """ + + __slots__ = ["_abi", "_hash", "_interpreter", "_platform"] + + def __init__(self, interpreter: str, abi: str, platform: str) -> None: + self._interpreter = interpreter.lower() + self._abi = abi.lower() + self._platform = platform.lower() + # The __hash__ of every single element in a Set[Tag] will be evaluated each time + # that a set calls its `.disjoint()` method, which may be called hundreds of + # times when scanning a page of links for packages with tags matching that + # Set[Tag]. Pre-computing the value here produces significant speedups for + # downstream consumers. + self._hash = hash((self._interpreter, self._abi, self._platform)) + + @property + def interpreter(self) -> str: + return self._interpreter + + @property + def abi(self) -> str: + return self._abi + + @property + def platform(self) -> str: + return self._platform + + def __eq__(self, other: object) -> bool: + if not isinstance(other, Tag): + return NotImplemented + + return ( + (self._hash == other._hash) # Short-circuit ASAP for perf reasons. + and (self._platform == other._platform) + and (self._abi == other._abi) + and (self._interpreter == other._interpreter) + ) + + def __hash__(self) -> int: + return self._hash + + def __str__(self) -> str: + return f"{self._interpreter}-{self._abi}-{self._platform}" + + def __repr__(self) -> str: + return f"<{self} @ {id(self)}>" + + +def parse_tag(tag: str) -> frozenset[Tag]: + """ + Parses the provided tag (e.g. `py3-none-any`) into a frozenset of Tag instances. + + Returning a set is required due to the possibility that the tag is a + compressed tag set. + """ + tags = set() + interpreters, abis, platforms = tag.split("-") + for interpreter in interpreters.split("."): + for abi in abis.split("."): + for platform_ in platforms.split("."): + tags.add(Tag(interpreter, abi, platform_)) + return frozenset(tags) + + +def _get_config_var(name: str, warn: bool = False) -> int | str | None: + value: int | str | None = sysconfig.get_config_var(name) + if value is None and warn: + logger.debug( + "Config variable '%s' is unset, Python ABI tag may be incorrect", name + ) + return value + + +def _normalize_string(string: str) -> str: + return string.replace(".", "_").replace("-", "_").replace(" ", "_") + + +def _is_threaded_cpython(abis: list[str]) -> bool: + """ + Determine if the ABI corresponds to a threaded (`--disable-gil`) build. + + The threaded builds are indicated by a "t" in the abiflags. + """ + if len(abis) == 0: + return False + # expect e.g., cp313 + m = re.match(r"cp\d+(.*)", abis[0]) + if not m: + return False + abiflags = m.group(1) + return "t" in abiflags + + +def _abi3_applies(python_version: PythonVersion, threading: bool) -> bool: + """ + Determine if the Python version supports abi3. + + PEP 384 was first implemented in Python 3.2. The threaded (`--disable-gil`) + builds do not support abi3. + """ + return len(python_version) > 1 and tuple(python_version) >= (3, 2) and not threading + + +def _cpython_abis(py_version: PythonVersion, warn: bool = False) -> list[str]: + py_version = tuple(py_version) # To allow for version comparison. + abis = [] + version = _version_nodot(py_version[:2]) + threading = debug = pymalloc = ucs4 = "" + with_debug = _get_config_var("Py_DEBUG", warn) + has_refcount = hasattr(sys, "gettotalrefcount") + # Windows doesn't set Py_DEBUG, so checking for support of debug-compiled + # extension modules is the best option. + # https://github.com/pypa/pip/issues/3383#issuecomment-173267692 + has_ext = "_d.pyd" in EXTENSION_SUFFIXES + if with_debug or (with_debug is None and (has_refcount or has_ext)): + debug = "d" + if py_version >= (3, 13) and _get_config_var("Py_GIL_DISABLED", warn): + threading = "t" + if py_version < (3, 8): + with_pymalloc = _get_config_var("WITH_PYMALLOC", warn) + if with_pymalloc or with_pymalloc is None: + pymalloc = "m" + if py_version < (3, 3): + unicode_size = _get_config_var("Py_UNICODE_SIZE", warn) + if unicode_size == 4 or ( + unicode_size is None and sys.maxunicode == 0x10FFFF + ): + ucs4 = "u" + elif debug: + # Debug builds can also load "normal" extension modules. + # We can also assume no UCS-4 or pymalloc requirement. + abis.append(f"cp{version}{threading}") + abis.insert(0, f"cp{version}{threading}{debug}{pymalloc}{ucs4}") + return abis + + +def cpython_tags( + python_version: PythonVersion | None = None, + abis: Iterable[str] | None = None, + platforms: Iterable[str] | None = None, + *, + warn: bool = False, +) -> Iterator[Tag]: + """ + Yields the tags for a CPython interpreter. + + The tags consist of: + - cp-- + - cp-abi3- + - cp-none- + - cp-abi3- # Older Python versions down to 3.2. + + If python_version only specifies a major version then user-provided ABIs and + the 'none' ABItag will be used. + + If 'abi3' or 'none' are specified in 'abis' then they will be yielded at + their normal position and not at the beginning. + """ + if not python_version: + python_version = sys.version_info[:2] + + interpreter = f"cp{_version_nodot(python_version[:2])}" + + if abis is None: + if len(python_version) > 1: + abis = _cpython_abis(python_version, warn) + else: + abis = [] + abis = list(abis) + # 'abi3' and 'none' are explicitly handled later. + for explicit_abi in ("abi3", "none"): + try: + abis.remove(explicit_abi) + except ValueError: + pass + + platforms = list(platforms or platform_tags()) + for abi in abis: + for platform_ in platforms: + yield Tag(interpreter, abi, platform_) + + threading = _is_threaded_cpython(abis) + use_abi3 = _abi3_applies(python_version, threading) + if use_abi3: + yield from (Tag(interpreter, "abi3", platform_) for platform_ in platforms) + yield from (Tag(interpreter, "none", platform_) for platform_ in platforms) + + if use_abi3: + for minor_version in range(python_version[1] - 1, 1, -1): + for platform_ in platforms: + version = _version_nodot((python_version[0], minor_version)) + interpreter = f"cp{version}" + yield Tag(interpreter, "abi3", platform_) + + +def _generic_abi() -> list[str]: + """ + Return the ABI tag based on EXT_SUFFIX. + """ + # The following are examples of `EXT_SUFFIX`. + # We want to keep the parts which are related to the ABI and remove the + # parts which are related to the platform: + # - linux: '.cpython-310-x86_64-linux-gnu.so' => cp310 + # - mac: '.cpython-310-darwin.so' => cp310 + # - win: '.cp310-win_amd64.pyd' => cp310 + # - win: '.pyd' => cp37 (uses _cpython_abis()) + # - pypy: '.pypy38-pp73-x86_64-linux-gnu.so' => pypy38_pp73 + # - graalpy: '.graalpy-38-native-x86_64-darwin.dylib' + # => graalpy_38_native + + ext_suffix = _get_config_var("EXT_SUFFIX", warn=True) + if not isinstance(ext_suffix, str) or ext_suffix[0] != ".": + raise SystemError("invalid sysconfig.get_config_var('EXT_SUFFIX')") + parts = ext_suffix.split(".") + if len(parts) < 3: + # CPython3.7 and earlier uses ".pyd" on Windows. + return _cpython_abis(sys.version_info[:2]) + soabi = parts[1] + if soabi.startswith("cpython"): + # non-windows + abi = "cp" + soabi.split("-")[1] + elif soabi.startswith("cp"): + # windows + abi = soabi.split("-")[0] + elif soabi.startswith("pypy"): + abi = "-".join(soabi.split("-")[:2]) + elif soabi.startswith("graalpy"): + abi = "-".join(soabi.split("-")[:3]) + elif soabi: + # pyston, ironpython, others? + abi = soabi + else: + return [] + return [_normalize_string(abi)] + + +def generic_tags( + interpreter: str | None = None, + abis: Iterable[str] | None = None, + platforms: Iterable[str] | None = None, + *, + warn: bool = False, +) -> Iterator[Tag]: + """ + Yields the tags for a generic interpreter. + + The tags consist of: + - -- + + The "none" ABI will be added if it was not explicitly provided. + """ + if not interpreter: + interp_name = interpreter_name() + interp_version = interpreter_version(warn=warn) + interpreter = "".join([interp_name, interp_version]) + if abis is None: + abis = _generic_abi() + else: + abis = list(abis) + platforms = list(platforms or platform_tags()) + if "none" not in abis: + abis.append("none") + for abi in abis: + for platform_ in platforms: + yield Tag(interpreter, abi, platform_) + + +def _py_interpreter_range(py_version: PythonVersion) -> Iterator[str]: + """ + Yields Python versions in descending order. + + After the latest version, the major-only version will be yielded, and then + all previous versions of that major version. + """ + if len(py_version) > 1: + yield f"py{_version_nodot(py_version[:2])}" + yield f"py{py_version[0]}" + if len(py_version) > 1: + for minor in range(py_version[1] - 1, -1, -1): + yield f"py{_version_nodot((py_version[0], minor))}" + + +def compatible_tags( + python_version: PythonVersion | None = None, + interpreter: str | None = None, + platforms: Iterable[str] | None = None, +) -> Iterator[Tag]: + """ + Yields the sequence of tags that are compatible with a specific version of Python. + + The tags consist of: + - py*-none- + - -none-any # ... if `interpreter` is provided. + - py*-none-any + """ + if not python_version: + python_version = sys.version_info[:2] + platforms = list(platforms or platform_tags()) + for version in _py_interpreter_range(python_version): + for platform_ in platforms: + yield Tag(version, "none", platform_) + if interpreter: + yield Tag(interpreter, "none", "any") + for version in _py_interpreter_range(python_version): + yield Tag(version, "none", "any") + + +def _mac_arch(arch: str, is_32bit: bool = _32_BIT_INTERPRETER) -> str: + if not is_32bit: + return arch + + if arch.startswith("ppc"): + return "ppc" + + return "i386" + + +def _mac_binary_formats(version: AppleVersion, cpu_arch: str) -> list[str]: + formats = [cpu_arch] + if cpu_arch == "x86_64": + if version < (10, 4): + return [] + formats.extend(["intel", "fat64", "fat32"]) + + elif cpu_arch == "i386": + if version < (10, 4): + return [] + formats.extend(["intel", "fat32", "fat"]) + + elif cpu_arch == "ppc64": + # TODO: Need to care about 32-bit PPC for ppc64 through 10.2? + if version > (10, 5) or version < (10, 4): + return [] + formats.append("fat64") + + elif cpu_arch == "ppc": + if version > (10, 6): + return [] + formats.extend(["fat32", "fat"]) + + if cpu_arch in {"arm64", "x86_64"}: + formats.append("universal2") + + if cpu_arch in {"x86_64", "i386", "ppc64", "ppc", "intel"}: + formats.append("universal") + + return formats + + +def mac_platforms( + version: AppleVersion | None = None, arch: str | None = None +) -> Iterator[str]: + """ + Yields the platform tags for a macOS system. + + The `version` parameter is a two-item tuple specifying the macOS version to + generate platform tags for. The `arch` parameter is the CPU architecture to + generate platform tags for. Both parameters default to the appropriate value + for the current system. + """ + version_str, _, cpu_arch = platform.mac_ver() + if version is None: + version = cast("AppleVersion", tuple(map(int, version_str.split(".")[:2]))) + if version == (10, 16): + # When built against an older macOS SDK, Python will report macOS 10.16 + # instead of the real version. + version_str = subprocess.run( + [ + sys.executable, + "-sS", + "-c", + "import platform; print(platform.mac_ver()[0])", + ], + check=True, + env={"SYSTEM_VERSION_COMPAT": "0"}, + stdout=subprocess.PIPE, + text=True, + ).stdout + version = cast("AppleVersion", tuple(map(int, version_str.split(".")[:2]))) + else: + version = version + if arch is None: + arch = _mac_arch(cpu_arch) + else: + arch = arch + + if (10, 0) <= version and version < (11, 0): + # Prior to Mac OS 11, each yearly release of Mac OS bumped the + # "minor" version number. The major version was always 10. + major_version = 10 + for minor_version in range(version[1], -1, -1): + compat_version = major_version, minor_version + binary_formats = _mac_binary_formats(compat_version, arch) + for binary_format in binary_formats: + yield f"macosx_{major_version}_{minor_version}_{binary_format}" + + if version >= (11, 0): + # Starting with Mac OS 11, each yearly release bumps the major version + # number. The minor versions are now the midyear updates. + minor_version = 0 + for major_version in range(version[0], 10, -1): + compat_version = major_version, minor_version + binary_formats = _mac_binary_formats(compat_version, arch) + for binary_format in binary_formats: + yield f"macosx_{major_version}_{minor_version}_{binary_format}" + + if version >= (11, 0): + # Mac OS 11 on x86_64 is compatible with binaries from previous releases. + # Arm64 support was introduced in 11.0, so no Arm binaries from previous + # releases exist. + # + # However, the "universal2" binary format can have a + # macOS version earlier than 11.0 when the x86_64 part of the binary supports + # that version of macOS. + major_version = 10 + if arch == "x86_64": + for minor_version in range(16, 3, -1): + compat_version = major_version, minor_version + binary_formats = _mac_binary_formats(compat_version, arch) + for binary_format in binary_formats: + yield f"macosx_{major_version}_{minor_version}_{binary_format}" + else: + for minor_version in range(16, 3, -1): + compat_version = major_version, minor_version + binary_format = "universal2" + yield f"macosx_{major_version}_{minor_version}_{binary_format}" + + +def ios_platforms( + version: AppleVersion | None = None, multiarch: str | None = None +) -> Iterator[str]: + """ + Yields the platform tags for an iOS system. + + :param version: A two-item tuple specifying the iOS version to generate + platform tags for. Defaults to the current iOS version. + :param multiarch: The CPU architecture+ABI to generate platform tags for - + (the value used by `sys.implementation._multiarch` e.g., + `arm64_iphoneos` or `x84_64_iphonesimulator`). Defaults to the current + multiarch value. + """ + if version is None: + # if iOS is the current platform, ios_ver *must* be defined. However, + # it won't exist for CPython versions before 3.13, which causes a mypy + # error. + _, release, _, _ = platform.ios_ver() # type: ignore[attr-defined, unused-ignore] + version = cast("AppleVersion", tuple(map(int, release.split(".")[:2]))) + + if multiarch is None: + multiarch = sys.implementation._multiarch + multiarch = multiarch.replace("-", "_") + + ios_platform_template = "ios_{major}_{minor}_{multiarch}" + + # Consider any iOS major.minor version from the version requested, down to + # 12.0. 12.0 is the first iOS version that is known to have enough features + # to support CPython. Consider every possible minor release up to X.9. There + # highest the minor has ever gone is 8 (14.8 and 15.8) but having some extra + # candidates that won't ever match doesn't really hurt, and it saves us from + # having to keep an explicit list of known iOS versions in the code. Return + # the results descending order of version number. + + # If the requested major version is less than 12, there won't be any matches. + if version[0] < 12: + return + + # Consider the actual X.Y version that was requested. + yield ios_platform_template.format( + major=version[0], minor=version[1], multiarch=multiarch + ) + + # Consider every minor version from X.0 to the minor version prior to the + # version requested by the platform. + for minor in range(version[1] - 1, -1, -1): + yield ios_platform_template.format( + major=version[0], minor=minor, multiarch=multiarch + ) + + for major in range(version[0] - 1, 11, -1): + for minor in range(9, -1, -1): + yield ios_platform_template.format( + major=major, minor=minor, multiarch=multiarch + ) + + +def _linux_platforms(is_32bit: bool = _32_BIT_INTERPRETER) -> Iterator[str]: + linux = _normalize_string(sysconfig.get_platform()) + if not linux.startswith("linux_"): + # we should never be here, just yield the sysconfig one and return + yield linux + return + if is_32bit: + if linux == "linux_x86_64": + linux = "linux_i686" + elif linux == "linux_aarch64": + linux = "linux_armv8l" + _, arch = linux.split("_", 1) + archs = {"armv8l": ["armv8l", "armv7l"]}.get(arch, [arch]) + yield from _manylinux.platform_tags(archs) + yield from _musllinux.platform_tags(archs) + for arch in archs: + yield f"linux_{arch}" + + +def _generic_platforms() -> Iterator[str]: + yield _normalize_string(sysconfig.get_platform()) + + +def platform_tags() -> Iterator[str]: + """ + Provides the platform tags for this installation. + """ + if platform.system() == "Darwin": + return mac_platforms() + elif platform.system() == "iOS": + return ios_platforms() + elif platform.system() == "Linux": + return _linux_platforms() + else: + return _generic_platforms() + + +def interpreter_name() -> str: + """ + Returns the name of the running interpreter. + + Some implementations have a reserved, two-letter abbreviation which will + be returned when appropriate. + """ + name = sys.implementation.name + return INTERPRETER_SHORT_NAMES.get(name) or name + + +def interpreter_version(*, warn: bool = False) -> str: + """ + Returns the version of the running interpreter. + """ + version = _get_config_var("py_version_nodot", warn=warn) + if version: + version = str(version) + else: + version = _version_nodot(sys.version_info[:2]) + return version + + +def _version_nodot(version: PythonVersion) -> str: + return "".join(map(str, version)) + + +def sys_tags(*, warn: bool = False) -> Iterator[Tag]: + """ + Returns the sequence of tag triples for the running interpreter. + + The order of the sequence corresponds to priority order for the + interpreter, from most to least important. + """ + + interp_name = interpreter_name() + if interp_name == "cp": + yield from cpython_tags(warn=warn) + else: + yield from generic_tags() + + if interp_name == "pp": + interp = "pp3" + elif interp_name == "cp": + interp = "cp" + interpreter_version(warn=warn) + else: + interp = None + yield from compatible_tags(interpreter=interp) diff --git a/setuptools/_vendor/packaging/utils.py b/setuptools/_vendor/packaging/utils.py new file mode 100644 index 0000000000..23450953df --- /dev/null +++ b/setuptools/_vendor/packaging/utils.py @@ -0,0 +1,163 @@ +# This file is dual licensed under the terms of the Apache License, Version +# 2.0, and the BSD License. See the LICENSE file in the root of this repository +# for complete details. + +from __future__ import annotations + +import functools +import re +from typing import NewType, Tuple, Union, cast + +from .tags import Tag, parse_tag +from .version import InvalidVersion, Version, _TrimmedRelease + +BuildTag = Union[Tuple[()], Tuple[int, str]] +NormalizedName = NewType("NormalizedName", str) + + +class InvalidName(ValueError): + """ + An invalid distribution name; users should refer to the packaging user guide. + """ + + +class InvalidWheelFilename(ValueError): + """ + An invalid wheel filename was found, users should refer to PEP 427. + """ + + +class InvalidSdistFilename(ValueError): + """ + An invalid sdist filename was found, users should refer to the packaging user guide. + """ + + +# Core metadata spec for `Name` +_validate_regex = re.compile( + r"^([A-Z0-9]|[A-Z0-9][A-Z0-9._-]*[A-Z0-9])$", re.IGNORECASE +) +_canonicalize_regex = re.compile(r"[-_.]+") +_normalized_regex = re.compile(r"^([a-z0-9]|[a-z0-9]([a-z0-9-](?!--))*[a-z0-9])$") +# PEP 427: The build number must start with a digit. +_build_tag_regex = re.compile(r"(\d+)(.*)") + + +def canonicalize_name(name: str, *, validate: bool = False) -> NormalizedName: + if validate and not _validate_regex.match(name): + raise InvalidName(f"name is invalid: {name!r}") + # This is taken from PEP 503. + value = _canonicalize_regex.sub("-", name).lower() + return cast(NormalizedName, value) + + +def is_normalized_name(name: str) -> bool: + return _normalized_regex.match(name) is not None + + +@functools.singledispatch +def canonicalize_version( + version: Version | str, *, strip_trailing_zero: bool = True +) -> str: + """ + Return a canonical form of a version as a string. + + >>> canonicalize_version('1.0.1') + '1.0.1' + + Per PEP 625, versions may have multiple canonical forms, differing + only by trailing zeros. + + >>> canonicalize_version('1.0.0') + '1' + >>> canonicalize_version('1.0.0', strip_trailing_zero=False) + '1.0.0' + + Invalid versions are returned unaltered. + + >>> canonicalize_version('foo bar baz') + 'foo bar baz' + """ + return str(_TrimmedRelease(str(version)) if strip_trailing_zero else version) + + +@canonicalize_version.register +def _(version: str, *, strip_trailing_zero: bool = True) -> str: + try: + parsed = Version(version) + except InvalidVersion: + # Legacy versions cannot be normalized + return version + return canonicalize_version(parsed, strip_trailing_zero=strip_trailing_zero) + + +def parse_wheel_filename( + filename: str, +) -> tuple[NormalizedName, Version, BuildTag, frozenset[Tag]]: + if not filename.endswith(".whl"): + raise InvalidWheelFilename( + f"Invalid wheel filename (extension must be '.whl'): {filename!r}" + ) + + filename = filename[:-4] + dashes = filename.count("-") + if dashes not in (4, 5): + raise InvalidWheelFilename( + f"Invalid wheel filename (wrong number of parts): {filename!r}" + ) + + parts = filename.split("-", dashes - 2) + name_part = parts[0] + # See PEP 427 for the rules on escaping the project name. + if "__" in name_part or re.match(r"^[\w\d._]*$", name_part, re.UNICODE) is None: + raise InvalidWheelFilename(f"Invalid project name: {filename!r}") + name = canonicalize_name(name_part) + + try: + version = Version(parts[1]) + except InvalidVersion as e: + raise InvalidWheelFilename( + f"Invalid wheel filename (invalid version): {filename!r}" + ) from e + + if dashes == 5: + build_part = parts[2] + build_match = _build_tag_regex.match(build_part) + if build_match is None: + raise InvalidWheelFilename( + f"Invalid build number: {build_part} in {filename!r}" + ) + build = cast(BuildTag, (int(build_match.group(1)), build_match.group(2))) + else: + build = () + tags = parse_tag(parts[-1]) + return (name, version, build, tags) + + +def parse_sdist_filename(filename: str) -> tuple[NormalizedName, Version]: + if filename.endswith(".tar.gz"): + file_stem = filename[: -len(".tar.gz")] + elif filename.endswith(".zip"): + file_stem = filename[: -len(".zip")] + else: + raise InvalidSdistFilename( + f"Invalid sdist filename (extension must be '.tar.gz' or '.zip'):" + f" {filename!r}" + ) + + # We are requiring a PEP 440 version, which cannot contain dashes, + # so we split on the last dash. + name_part, sep, version_part = file_stem.rpartition("-") + if not sep: + raise InvalidSdistFilename(f"Invalid sdist filename: {filename!r}") + + name = canonicalize_name(name_part) + + try: + version = Version(version_part) + except InvalidVersion as e: + raise InvalidSdistFilename( + f"Invalid sdist filename (invalid version): {filename!r}" + ) from e + + return (name, version) diff --git a/setuptools/_vendor/packaging/version.py b/setuptools/_vendor/packaging/version.py new file mode 100644 index 0000000000..c9bbda20e4 --- /dev/null +++ b/setuptools/_vendor/packaging/version.py @@ -0,0 +1,582 @@ +# This file is dual licensed under the terms of the Apache License, Version +# 2.0, and the BSD License. See the LICENSE file in the root of this repository +# for complete details. +""" +.. testsetup:: + + from packaging.version import parse, Version +""" + +from __future__ import annotations + +import itertools +import re +from typing import Any, Callable, NamedTuple, SupportsInt, Tuple, Union + +from ._structures import Infinity, InfinityType, NegativeInfinity, NegativeInfinityType + +__all__ = ["VERSION_PATTERN", "InvalidVersion", "Version", "parse"] + +LocalType = Tuple[Union[int, str], ...] + +CmpPrePostDevType = Union[InfinityType, NegativeInfinityType, Tuple[str, int]] +CmpLocalType = Union[ + NegativeInfinityType, + Tuple[Union[Tuple[int, str], Tuple[NegativeInfinityType, Union[int, str]]], ...], +] +CmpKey = Tuple[ + int, + Tuple[int, ...], + CmpPrePostDevType, + CmpPrePostDevType, + CmpPrePostDevType, + CmpLocalType, +] +VersionComparisonMethod = Callable[[CmpKey, CmpKey], bool] + + +class _Version(NamedTuple): + epoch: int + release: tuple[int, ...] + dev: tuple[str, int] | None + pre: tuple[str, int] | None + post: tuple[str, int] | None + local: LocalType | None + + +def parse(version: str) -> Version: + """Parse the given version string. + + >>> parse('1.0.dev1') + + + :param version: The version string to parse. + :raises InvalidVersion: When the version string is not a valid version. + """ + return Version(version) + + +class InvalidVersion(ValueError): + """Raised when a version string is not a valid version. + + >>> Version("invalid") + Traceback (most recent call last): + ... + packaging.version.InvalidVersion: Invalid version: 'invalid' + """ + + +class _BaseVersion: + _key: tuple[Any, ...] + + def __hash__(self) -> int: + return hash(self._key) + + # Please keep the duplicated `isinstance` check + # in the six comparisons hereunder + # unless you find a way to avoid adding overhead function calls. + def __lt__(self, other: _BaseVersion) -> bool: + if not isinstance(other, _BaseVersion): + return NotImplemented + + return self._key < other._key + + def __le__(self, other: _BaseVersion) -> bool: + if not isinstance(other, _BaseVersion): + return NotImplemented + + return self._key <= other._key + + def __eq__(self, other: object) -> bool: + if not isinstance(other, _BaseVersion): + return NotImplemented + + return self._key == other._key + + def __ge__(self, other: _BaseVersion) -> bool: + if not isinstance(other, _BaseVersion): + return NotImplemented + + return self._key >= other._key + + def __gt__(self, other: _BaseVersion) -> bool: + if not isinstance(other, _BaseVersion): + return NotImplemented + + return self._key > other._key + + def __ne__(self, other: object) -> bool: + if not isinstance(other, _BaseVersion): + return NotImplemented + + return self._key != other._key + + +# Deliberately not anchored to the start and end of the string, to make it +# easier for 3rd party code to reuse +_VERSION_PATTERN = r""" + v? + (?: + (?:(?P[0-9]+)!)? # epoch + (?P[0-9]+(?:\.[0-9]+)*) # release segment + (?P
                                              # pre-release
+            [-_\.]?
+            (?Palpha|a|beta|b|preview|pre|c|rc)
+            [-_\.]?
+            (?P[0-9]+)?
+        )?
+        (?P                                         # post release
+            (?:-(?P[0-9]+))
+            |
+            (?:
+                [-_\.]?
+                (?Ppost|rev|r)
+                [-_\.]?
+                (?P[0-9]+)?
+            )
+        )?
+        (?P                                          # dev release
+            [-_\.]?
+            (?Pdev)
+            [-_\.]?
+            (?P[0-9]+)?
+        )?
+    )
+    (?:\+(?P[a-z0-9]+(?:[-_\.][a-z0-9]+)*))?       # local version
+"""
+
+VERSION_PATTERN = _VERSION_PATTERN
+"""
+A string containing the regular expression used to match a valid version.
+
+The pattern is not anchored at either end, and is intended for embedding in larger
+expressions (for example, matching a version number as part of a file name). The
+regular expression should be compiled with the ``re.VERBOSE`` and ``re.IGNORECASE``
+flags set.
+
+:meta hide-value:
+"""
+
+
+class Version(_BaseVersion):
+    """This class abstracts handling of a project's versions.
+
+    A :class:`Version` instance is comparison aware and can be compared and
+    sorted using the standard Python interfaces.
+
+    >>> v1 = Version("1.0a5")
+    >>> v2 = Version("1.0")
+    >>> v1
+    
+    >>> v2
+    
+    >>> v1 < v2
+    True
+    >>> v1 == v2
+    False
+    >>> v1 > v2
+    False
+    >>> v1 >= v2
+    False
+    >>> v1 <= v2
+    True
+    """
+
+    _regex = re.compile(r"^\s*" + VERSION_PATTERN + r"\s*$", re.VERBOSE | re.IGNORECASE)
+    _key: CmpKey
+
+    def __init__(self, version: str) -> None:
+        """Initialize a Version object.
+
+        :param version:
+            The string representation of a version which will be parsed and normalized
+            before use.
+        :raises InvalidVersion:
+            If the ``version`` does not conform to PEP 440 in any way then this
+            exception will be raised.
+        """
+
+        # Validate the version and parse it into pieces
+        match = self._regex.search(version)
+        if not match:
+            raise InvalidVersion(f"Invalid version: {version!r}")
+
+        # Store the parsed out pieces of the version
+        self._version = _Version(
+            epoch=int(match.group("epoch")) if match.group("epoch") else 0,
+            release=tuple(int(i) for i in match.group("release").split(".")),
+            pre=_parse_letter_version(match.group("pre_l"), match.group("pre_n")),
+            post=_parse_letter_version(
+                match.group("post_l"), match.group("post_n1") or match.group("post_n2")
+            ),
+            dev=_parse_letter_version(match.group("dev_l"), match.group("dev_n")),
+            local=_parse_local_version(match.group("local")),
+        )
+
+        # Generate a key which will be used for sorting
+        self._key = _cmpkey(
+            self._version.epoch,
+            self._version.release,
+            self._version.pre,
+            self._version.post,
+            self._version.dev,
+            self._version.local,
+        )
+
+    def __repr__(self) -> str:
+        """A representation of the Version that shows all internal state.
+
+        >>> Version('1.0.0')
+        
+        """
+        return f""
+
+    def __str__(self) -> str:
+        """A string representation of the version that can be round-tripped.
+
+        >>> str(Version("1.0a5"))
+        '1.0a5'
+        """
+        parts = []
+
+        # Epoch
+        if self.epoch != 0:
+            parts.append(f"{self.epoch}!")
+
+        # Release segment
+        parts.append(".".join(str(x) for x in self.release))
+
+        # Pre-release
+        if self.pre is not None:
+            parts.append("".join(str(x) for x in self.pre))
+
+        # Post-release
+        if self.post is not None:
+            parts.append(f".post{self.post}")
+
+        # Development release
+        if self.dev is not None:
+            parts.append(f".dev{self.dev}")
+
+        # Local version segment
+        if self.local is not None:
+            parts.append(f"+{self.local}")
+
+        return "".join(parts)
+
+    @property
+    def epoch(self) -> int:
+        """The epoch of the version.
+
+        >>> Version("2.0.0").epoch
+        0
+        >>> Version("1!2.0.0").epoch
+        1
+        """
+        return self._version.epoch
+
+    @property
+    def release(self) -> tuple[int, ...]:
+        """The components of the "release" segment of the version.
+
+        >>> Version("1.2.3").release
+        (1, 2, 3)
+        >>> Version("2.0.0").release
+        (2, 0, 0)
+        >>> Version("1!2.0.0.post0").release
+        (2, 0, 0)
+
+        Includes trailing zeroes but not the epoch or any pre-release / development /
+        post-release suffixes.
+        """
+        return self._version.release
+
+    @property
+    def pre(self) -> tuple[str, int] | None:
+        """The pre-release segment of the version.
+
+        >>> print(Version("1.2.3").pre)
+        None
+        >>> Version("1.2.3a1").pre
+        ('a', 1)
+        >>> Version("1.2.3b1").pre
+        ('b', 1)
+        >>> Version("1.2.3rc1").pre
+        ('rc', 1)
+        """
+        return self._version.pre
+
+    @property
+    def post(self) -> int | None:
+        """The post-release number of the version.
+
+        >>> print(Version("1.2.3").post)
+        None
+        >>> Version("1.2.3.post1").post
+        1
+        """
+        return self._version.post[1] if self._version.post else None
+
+    @property
+    def dev(self) -> int | None:
+        """The development number of the version.
+
+        >>> print(Version("1.2.3").dev)
+        None
+        >>> Version("1.2.3.dev1").dev
+        1
+        """
+        return self._version.dev[1] if self._version.dev else None
+
+    @property
+    def local(self) -> str | None:
+        """The local version segment of the version.
+
+        >>> print(Version("1.2.3").local)
+        None
+        >>> Version("1.2.3+abc").local
+        'abc'
+        """
+        if self._version.local:
+            return ".".join(str(x) for x in self._version.local)
+        else:
+            return None
+
+    @property
+    def public(self) -> str:
+        """The public portion of the version.
+
+        >>> Version("1.2.3").public
+        '1.2.3'
+        >>> Version("1.2.3+abc").public
+        '1.2.3'
+        >>> Version("1!1.2.3dev1+abc").public
+        '1!1.2.3.dev1'
+        """
+        return str(self).split("+", 1)[0]
+
+    @property
+    def base_version(self) -> str:
+        """The "base version" of the version.
+
+        >>> Version("1.2.3").base_version
+        '1.2.3'
+        >>> Version("1.2.3+abc").base_version
+        '1.2.3'
+        >>> Version("1!1.2.3dev1+abc").base_version
+        '1!1.2.3'
+
+        The "base version" is the public version of the project without any pre or post
+        release markers.
+        """
+        parts = []
+
+        # Epoch
+        if self.epoch != 0:
+            parts.append(f"{self.epoch}!")
+
+        # Release segment
+        parts.append(".".join(str(x) for x in self.release))
+
+        return "".join(parts)
+
+    @property
+    def is_prerelease(self) -> bool:
+        """Whether this version is a pre-release.
+
+        >>> Version("1.2.3").is_prerelease
+        False
+        >>> Version("1.2.3a1").is_prerelease
+        True
+        >>> Version("1.2.3b1").is_prerelease
+        True
+        >>> Version("1.2.3rc1").is_prerelease
+        True
+        >>> Version("1.2.3dev1").is_prerelease
+        True
+        """
+        return self.dev is not None or self.pre is not None
+
+    @property
+    def is_postrelease(self) -> bool:
+        """Whether this version is a post-release.
+
+        >>> Version("1.2.3").is_postrelease
+        False
+        >>> Version("1.2.3.post1").is_postrelease
+        True
+        """
+        return self.post is not None
+
+    @property
+    def is_devrelease(self) -> bool:
+        """Whether this version is a development release.
+
+        >>> Version("1.2.3").is_devrelease
+        False
+        >>> Version("1.2.3.dev1").is_devrelease
+        True
+        """
+        return self.dev is not None
+
+    @property
+    def major(self) -> int:
+        """The first item of :attr:`release` or ``0`` if unavailable.
+
+        >>> Version("1.2.3").major
+        1
+        """
+        return self.release[0] if len(self.release) >= 1 else 0
+
+    @property
+    def minor(self) -> int:
+        """The second item of :attr:`release` or ``0`` if unavailable.
+
+        >>> Version("1.2.3").minor
+        2
+        >>> Version("1").minor
+        0
+        """
+        return self.release[1] if len(self.release) >= 2 else 0
+
+    @property
+    def micro(self) -> int:
+        """The third item of :attr:`release` or ``0`` if unavailable.
+
+        >>> Version("1.2.3").micro
+        3
+        >>> Version("1").micro
+        0
+        """
+        return self.release[2] if len(self.release) >= 3 else 0
+
+
+class _TrimmedRelease(Version):
+    @property
+    def release(self) -> tuple[int, ...]:
+        """
+        Release segment without any trailing zeros.
+
+        >>> _TrimmedRelease('1.0.0').release
+        (1,)
+        >>> _TrimmedRelease('0.0').release
+        (0,)
+        """
+        rel = super().release
+        nonzeros = (index for index, val in enumerate(rel) if val)
+        last_nonzero = max(nonzeros, default=0)
+        return rel[: last_nonzero + 1]
+
+
+def _parse_letter_version(
+    letter: str | None, number: str | bytes | SupportsInt | None
+) -> tuple[str, int] | None:
+    if letter:
+        # We consider there to be an implicit 0 in a pre-release if there is
+        # not a numeral associated with it.
+        if number is None:
+            number = 0
+
+        # We normalize any letters to their lower case form
+        letter = letter.lower()
+
+        # We consider some words to be alternate spellings of other words and
+        # in those cases we want to normalize the spellings to our preferred
+        # spelling.
+        if letter == "alpha":
+            letter = "a"
+        elif letter == "beta":
+            letter = "b"
+        elif letter in ["c", "pre", "preview"]:
+            letter = "rc"
+        elif letter in ["rev", "r"]:
+            letter = "post"
+
+        return letter, int(number)
+
+    assert not letter
+    if number:
+        # We assume if we are given a number, but we are not given a letter
+        # then this is using the implicit post release syntax (e.g. 1.0-1)
+        letter = "post"
+
+        return letter, int(number)
+
+    return None
+
+
+_local_version_separators = re.compile(r"[\._-]")
+
+
+def _parse_local_version(local: str | None) -> LocalType | None:
+    """
+    Takes a string like abc.1.twelve and turns it into ("abc", 1, "twelve").
+    """
+    if local is not None:
+        return tuple(
+            part.lower() if not part.isdigit() else int(part)
+            for part in _local_version_separators.split(local)
+        )
+    return None
+
+
+def _cmpkey(
+    epoch: int,
+    release: tuple[int, ...],
+    pre: tuple[str, int] | None,
+    post: tuple[str, int] | None,
+    dev: tuple[str, int] | None,
+    local: LocalType | None,
+) -> CmpKey:
+    # When we compare a release version, we want to compare it with all of the
+    # trailing zeros removed. So we'll use a reverse the list, drop all the now
+    # leading zeros until we come to something non zero, then take the rest
+    # re-reverse it back into the correct order and make it a tuple and use
+    # that for our sorting key.
+    _release = tuple(
+        reversed(list(itertools.dropwhile(lambda x: x == 0, reversed(release))))
+    )
+
+    # We need to "trick" the sorting algorithm to put 1.0.dev0 before 1.0a0.
+    # We'll do this by abusing the pre segment, but we _only_ want to do this
+    # if there is not a pre or a post segment. If we have one of those then
+    # the normal sorting rules will handle this case correctly.
+    if pre is None and post is None and dev is not None:
+        _pre: CmpPrePostDevType = NegativeInfinity
+    # Versions without a pre-release (except as noted above) should sort after
+    # those with one.
+    elif pre is None:
+        _pre = Infinity
+    else:
+        _pre = pre
+
+    # Versions without a post segment should sort before those with one.
+    if post is None:
+        _post: CmpPrePostDevType = NegativeInfinity
+
+    else:
+        _post = post
+
+    # Versions without a development segment should sort after those with one.
+    if dev is None:
+        _dev: CmpPrePostDevType = Infinity
+
+    else:
+        _dev = dev
+
+    if local is None:
+        # Versions without a local segment should sort before those with one.
+        _local: CmpLocalType = NegativeInfinity
+    else:
+        # Versions with a local segment need that segment parsed to implement
+        # the sorting rules in PEP440.
+        # - Alpha numeric segments sort before numeric segments
+        # - Alpha numeric segments sort lexicographically
+        # - Numeric segments sort numerically
+        # - Shorter versions sort before longer versions when the prefixes
+        #   match exactly
+        _local = tuple(
+            (i, "") if isinstance(i, int) else (NegativeInfinity, i) for i in local
+        )
+
+    return epoch, _release, _pre, _post, _dev, _local
diff --git a/setuptools/_vendor/platformdirs-4.2.2.dist-info/INSTALLER b/setuptools/_vendor/platformdirs-4.2.2.dist-info/INSTALLER
new file mode 100644
index 0000000000..a1b589e38a
--- /dev/null
+++ b/setuptools/_vendor/platformdirs-4.2.2.dist-info/INSTALLER
@@ -0,0 +1 @@
+pip
diff --git a/setuptools/_vendor/platformdirs-4.2.2.dist-info/METADATA b/setuptools/_vendor/platformdirs-4.2.2.dist-info/METADATA
new file mode 100644
index 0000000000..ab51ef36ad
--- /dev/null
+++ b/setuptools/_vendor/platformdirs-4.2.2.dist-info/METADATA
@@ -0,0 +1,319 @@
+Metadata-Version: 2.3
+Name: platformdirs
+Version: 4.2.2
+Summary: A small Python package for determining appropriate platform-specific dirs, e.g. a `user data dir`.
+Project-URL: Documentation, https://platformdirs.readthedocs.io
+Project-URL: Homepage, https://github.com/platformdirs/platformdirs
+Project-URL: Source, https://github.com/platformdirs/platformdirs
+Project-URL: Tracker, https://github.com/platformdirs/platformdirs/issues
+Maintainer-email: Bernát Gábor , Julian Berman , Ofek Lev , Ronny Pfannschmidt 
+License-Expression: MIT
+License-File: LICENSE
+Keywords: appdirs,application,cache,directory,log,user
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Intended Audience :: Developers
+Classifier: License :: OSI Approved :: MIT License
+Classifier: Operating System :: OS Independent
+Classifier: Programming Language :: Python
+Classifier: Programming Language :: Python :: 3 :: Only
+Classifier: Programming Language :: Python :: 3.8
+Classifier: Programming Language :: Python :: 3.9
+Classifier: Programming Language :: Python :: 3.10
+Classifier: Programming Language :: Python :: 3.11
+Classifier: Programming Language :: Python :: 3.12
+Classifier: Programming Language :: Python :: Implementation :: CPython
+Classifier: Programming Language :: Python :: Implementation :: PyPy
+Classifier: Topic :: Software Development :: Libraries :: Python Modules
+Requires-Python: >=3.8
+Provides-Extra: docs
+Requires-Dist: furo>=2023.9.10; extra == 'docs'
+Requires-Dist: proselint>=0.13; extra == 'docs'
+Requires-Dist: sphinx-autodoc-typehints>=1.25.2; extra == 'docs'
+Requires-Dist: sphinx>=7.2.6; extra == 'docs'
+Provides-Extra: test
+Requires-Dist: appdirs==1.4.4; extra == 'test'
+Requires-Dist: covdefaults>=2.3; extra == 'test'
+Requires-Dist: pytest-cov>=4.1; extra == 'test'
+Requires-Dist: pytest-mock>=3.12; extra == 'test'
+Requires-Dist: pytest>=7.4.3; extra == 'test'
+Provides-Extra: type
+Requires-Dist: mypy>=1.8; extra == 'type'
+Description-Content-Type: text/x-rst
+
+The problem
+===========
+
+.. image:: https://github.com/platformdirs/platformdirs/actions/workflows/check.yml/badge.svg
+   :target: https://github.com/platformdirs/platformdirs/actions
+
+When writing desktop application, finding the right location to store user data
+and configuration varies per platform. Even for single-platform apps, there
+may by plenty of nuances in figuring out the right location.
+
+For example, if running on macOS, you should use::
+
+    ~/Library/Application Support/
+
+If on Windows (at least English Win) that should be::
+
+    C:\Documents and Settings\\Application Data\Local Settings\\
+
+or possibly::
+
+    C:\Documents and Settings\\Application Data\\
+
+for `roaming profiles `_ but that is another story.
+
+On Linux (and other Unices), according to the `XDG Basedir Spec`_, it should be::
+
+    ~/.local/share/
+
+.. _XDG Basedir Spec: https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html
+
+``platformdirs`` to the rescue
+==============================
+
+This kind of thing is what the ``platformdirs`` package is for.
+``platformdirs`` will help you choose an appropriate:
+
+- user data dir (``user_data_dir``)
+- user config dir (``user_config_dir``)
+- user cache dir (``user_cache_dir``)
+- site data dir (``site_data_dir``)
+- site config dir (``site_config_dir``)
+- user log dir (``user_log_dir``)
+- user documents dir (``user_documents_dir``)
+- user downloads dir (``user_downloads_dir``)
+- user pictures dir (``user_pictures_dir``)
+- user videos dir (``user_videos_dir``)
+- user music dir (``user_music_dir``)
+- user desktop dir (``user_desktop_dir``)
+- user runtime dir (``user_runtime_dir``)
+
+And also:
+
+- Is slightly opinionated on the directory names used. Look for "OPINION" in
+  documentation and code for when an opinion is being applied.
+
+Example output
+==============
+
+On macOS:
+
+.. code-block:: pycon
+
+    >>> from platformdirs import *
+    >>> appname = "SuperApp"
+    >>> appauthor = "Acme"
+    >>> user_data_dir(appname, appauthor)
+    '/Users/trentm/Library/Application Support/SuperApp'
+    >>> site_data_dir(appname, appauthor)
+    '/Library/Application Support/SuperApp'
+    >>> user_cache_dir(appname, appauthor)
+    '/Users/trentm/Library/Caches/SuperApp'
+    >>> user_log_dir(appname, appauthor)
+    '/Users/trentm/Library/Logs/SuperApp'
+    >>> user_documents_dir()
+    '/Users/trentm/Documents'
+    >>> user_downloads_dir()
+    '/Users/trentm/Downloads'
+    >>> user_pictures_dir()
+    '/Users/trentm/Pictures'
+    >>> user_videos_dir()
+    '/Users/trentm/Movies'
+    >>> user_music_dir()
+    '/Users/trentm/Music'
+    >>> user_desktop_dir()
+    '/Users/trentm/Desktop'
+    >>> user_runtime_dir(appname, appauthor)
+    '/Users/trentm/Library/Caches/TemporaryItems/SuperApp'
+
+On Windows:
+
+.. code-block:: pycon
+
+    >>> from platformdirs import *
+    >>> appname = "SuperApp"
+    >>> appauthor = "Acme"
+    >>> user_data_dir(appname, appauthor)
+    'C:\\Users\\trentm\\AppData\\Local\\Acme\\SuperApp'
+    >>> user_data_dir(appname, appauthor, roaming=True)
+    'C:\\Users\\trentm\\AppData\\Roaming\\Acme\\SuperApp'
+    >>> user_cache_dir(appname, appauthor)
+    'C:\\Users\\trentm\\AppData\\Local\\Acme\\SuperApp\\Cache'
+    >>> user_log_dir(appname, appauthor)
+    'C:\\Users\\trentm\\AppData\\Local\\Acme\\SuperApp\\Logs'
+    >>> user_documents_dir()
+    'C:\\Users\\trentm\\Documents'
+    >>> user_downloads_dir()
+    'C:\\Users\\trentm\\Downloads'
+    >>> user_pictures_dir()
+    'C:\\Users\\trentm\\Pictures'
+    >>> user_videos_dir()
+    'C:\\Users\\trentm\\Videos'
+    >>> user_music_dir()
+    'C:\\Users\\trentm\\Music'
+    >>> user_desktop_dir()
+    'C:\\Users\\trentm\\Desktop'
+    >>> user_runtime_dir(appname, appauthor)
+    'C:\\Users\\trentm\\AppData\\Local\\Temp\\Acme\\SuperApp'
+
+On Linux:
+
+.. code-block:: pycon
+
+    >>> from platformdirs import *
+    >>> appname = "SuperApp"
+    >>> appauthor = "Acme"
+    >>> user_data_dir(appname, appauthor)
+    '/home/trentm/.local/share/SuperApp'
+    >>> site_data_dir(appname, appauthor)
+    '/usr/local/share/SuperApp'
+    >>> site_data_dir(appname, appauthor, multipath=True)
+    '/usr/local/share/SuperApp:/usr/share/SuperApp'
+    >>> user_cache_dir(appname, appauthor)
+    '/home/trentm/.cache/SuperApp'
+    >>> user_log_dir(appname, appauthor)
+    '/home/trentm/.local/state/SuperApp/log'
+    >>> user_config_dir(appname)
+    '/home/trentm/.config/SuperApp'
+    >>> user_documents_dir()
+    '/home/trentm/Documents'
+    >>> user_downloads_dir()
+    '/home/trentm/Downloads'
+    >>> user_pictures_dir()
+    '/home/trentm/Pictures'
+    >>> user_videos_dir()
+    '/home/trentm/Videos'
+    >>> user_music_dir()
+    '/home/trentm/Music'
+    >>> user_desktop_dir()
+    '/home/trentm/Desktop'
+    >>> user_runtime_dir(appname, appauthor)
+    '/run/user/{os.getuid()}/SuperApp'
+    >>> site_config_dir(appname)
+    '/etc/xdg/SuperApp'
+    >>> os.environ["XDG_CONFIG_DIRS"] = "/etc:/usr/local/etc"
+    >>> site_config_dir(appname, multipath=True)
+    '/etc/SuperApp:/usr/local/etc/SuperApp'
+
+On Android::
+
+    >>> from platformdirs import *
+    >>> appname = "SuperApp"
+    >>> appauthor = "Acme"
+    >>> user_data_dir(appname, appauthor)
+    '/data/data/com.myApp/files/SuperApp'
+    >>> user_cache_dir(appname, appauthor)
+    '/data/data/com.myApp/cache/SuperApp'
+    >>> user_log_dir(appname, appauthor)
+    '/data/data/com.myApp/cache/SuperApp/log'
+    >>> user_config_dir(appname)
+    '/data/data/com.myApp/shared_prefs/SuperApp'
+    >>> user_documents_dir()
+    '/storage/emulated/0/Documents'
+    >>> user_downloads_dir()
+    '/storage/emulated/0/Downloads'
+    >>> user_pictures_dir()
+    '/storage/emulated/0/Pictures'
+    >>> user_videos_dir()
+    '/storage/emulated/0/DCIM/Camera'
+    >>> user_music_dir()
+    '/storage/emulated/0/Music'
+    >>> user_desktop_dir()
+    '/storage/emulated/0/Desktop'
+    >>> user_runtime_dir(appname, appauthor)
+    '/data/data/com.myApp/cache/SuperApp/tmp'
+
+Note: Some android apps like Termux and Pydroid are used as shells. These
+apps are used by the end user to emulate Linux environment. Presence of
+``SHELL`` environment variable is used by Platformdirs to differentiate
+between general android apps and android apps used as shells. Shell android
+apps also support ``XDG_*`` environment variables.
+
+
+``PlatformDirs`` for convenience
+================================
+
+.. code-block:: pycon
+
+    >>> from platformdirs import PlatformDirs
+    >>> dirs = PlatformDirs("SuperApp", "Acme")
+    >>> dirs.user_data_dir
+    '/Users/trentm/Library/Application Support/SuperApp'
+    >>> dirs.site_data_dir
+    '/Library/Application Support/SuperApp'
+    >>> dirs.user_cache_dir
+    '/Users/trentm/Library/Caches/SuperApp'
+    >>> dirs.user_log_dir
+    '/Users/trentm/Library/Logs/SuperApp'
+    >>> dirs.user_documents_dir
+    '/Users/trentm/Documents'
+    >>> dirs.user_downloads_dir
+    '/Users/trentm/Downloads'
+    >>> dirs.user_pictures_dir
+    '/Users/trentm/Pictures'
+    >>> dirs.user_videos_dir
+    '/Users/trentm/Movies'
+    >>> dirs.user_music_dir
+    '/Users/trentm/Music'
+    >>> dirs.user_desktop_dir
+    '/Users/trentm/Desktop'
+    >>> dirs.user_runtime_dir
+    '/Users/trentm/Library/Caches/TemporaryItems/SuperApp'
+
+Per-version isolation
+=====================
+
+If you have multiple versions of your app in use that you want to be
+able to run side-by-side, then you may want version-isolation for these
+dirs::
+
+    >>> from platformdirs import PlatformDirs
+    >>> dirs = PlatformDirs("SuperApp", "Acme", version="1.0")
+    >>> dirs.user_data_dir
+    '/Users/trentm/Library/Application Support/SuperApp/1.0'
+    >>> dirs.site_data_dir
+    '/Library/Application Support/SuperApp/1.0'
+    >>> dirs.user_cache_dir
+    '/Users/trentm/Library/Caches/SuperApp/1.0'
+    >>> dirs.user_log_dir
+    '/Users/trentm/Library/Logs/SuperApp/1.0'
+    >>> dirs.user_documents_dir
+    '/Users/trentm/Documents'
+    >>> dirs.user_downloads_dir
+    '/Users/trentm/Downloads'
+    >>> dirs.user_pictures_dir
+    '/Users/trentm/Pictures'
+    >>> dirs.user_videos_dir
+    '/Users/trentm/Movies'
+    >>> dirs.user_music_dir
+    '/Users/trentm/Music'
+    >>> dirs.user_desktop_dir
+    '/Users/trentm/Desktop'
+    >>> dirs.user_runtime_dir
+    '/Users/trentm/Library/Caches/TemporaryItems/SuperApp/1.0'
+
+Be wary of using this for configuration files though; you'll need to handle
+migrating configuration files manually.
+
+Why this Fork?
+==============
+
+This repository is a friendly fork of the wonderful work started by
+`ActiveState `_ who created
+``appdirs``, this package's ancestor.
+
+Maintaining an open source project is no easy task, particularly
+from within an organization, and the Python community is indebted
+to ``appdirs`` (and to Trent Mick and Jeff Rouse in particular) for
+creating an incredibly useful simple module, as evidenced by the wide
+number of users it has attracted over the years.
+
+Nonetheless, given the number of long-standing open issues
+and pull requests, and no clear path towards `ensuring
+that maintenance of the package would continue or grow
+`_, this fork was
+created.
+
+Contributions are most welcome.
diff --git a/setuptools/_vendor/platformdirs-4.2.2.dist-info/RECORD b/setuptools/_vendor/platformdirs-4.2.2.dist-info/RECORD
new file mode 100644
index 0000000000..64c0c8ea2e
--- /dev/null
+++ b/setuptools/_vendor/platformdirs-4.2.2.dist-info/RECORD
@@ -0,0 +1,23 @@
+platformdirs-4.2.2.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4
+platformdirs-4.2.2.dist-info/METADATA,sha256=zmsie01G1MtXR0wgIv5XpVeTO7idr0WWvfmxKsKWuGk,11429
+platformdirs-4.2.2.dist-info/RECORD,,
+platformdirs-4.2.2.dist-info/REQUESTED,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0
+platformdirs-4.2.2.dist-info/WHEEL,sha256=zEMcRr9Kr03x1ozGwg5v9NQBKn3kndp6LSoSlVg-jhU,87
+platformdirs-4.2.2.dist-info/licenses/LICENSE,sha256=KeD9YukphQ6G6yjD_czwzv30-pSHkBHP-z0NS-1tTbY,1089
+platformdirs/__init__.py,sha256=EMGE8qeHRR9CzDFr8kL3tA8hdZZniYjXBVZd0UGTWK0,22225
+platformdirs/__main__.py,sha256=HnsUQHpiBaiTxwcmwVw-nFaPdVNZtQIdi1eWDtI-MzI,1493
+platformdirs/__pycache__/__init__.cpython-312.pyc,,
+platformdirs/__pycache__/__main__.cpython-312.pyc,,
+platformdirs/__pycache__/android.cpython-312.pyc,,
+platformdirs/__pycache__/api.cpython-312.pyc,,
+platformdirs/__pycache__/macos.cpython-312.pyc,,
+platformdirs/__pycache__/unix.cpython-312.pyc,,
+platformdirs/__pycache__/version.cpython-312.pyc,,
+platformdirs/__pycache__/windows.cpython-312.pyc,,
+platformdirs/android.py,sha256=xZXY9Jd46WOsxT2U6-5HsNtDZ-IQqxcEUrBLl3hYk4o,9016
+platformdirs/api.py,sha256=QBYdUac2eC521ek_y53uD1Dcq-lJX8IgSRVd4InC6uc,8996
+platformdirs/macos.py,sha256=wftsbsvq6nZ0WORXSiCrZNkRHz_WKuktl0a6mC7MFkI,5580
+platformdirs/py.typed,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0
+platformdirs/unix.py,sha256=Cci9Wqt35dAMsg6HT9nRGHSBW5obb0pR3AE1JJnsCXg,10643
+platformdirs/version.py,sha256=r7F76tZRjgQKzrpx_I0_ZMQOMU-PS7eGnHD7zEK3KB0,411
+platformdirs/windows.py,sha256=IFpiohUBwxPtCzlyKwNtxyW4Jk8haa6W8o59mfrDXVo,10125
diff --git a/setuptools/_vendor/platformdirs-4.2.2.dist-info/REQUESTED b/setuptools/_vendor/platformdirs-4.2.2.dist-info/REQUESTED
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/setuptools/_vendor/platformdirs-4.2.2.dist-info/WHEEL b/setuptools/_vendor/platformdirs-4.2.2.dist-info/WHEEL
new file mode 100644
index 0000000000..516596c767
--- /dev/null
+++ b/setuptools/_vendor/platformdirs-4.2.2.dist-info/WHEEL
@@ -0,0 +1,4 @@
+Wheel-Version: 1.0
+Generator: hatchling 1.24.2
+Root-Is-Purelib: true
+Tag: py3-none-any
diff --git a/setuptools/_vendor/platformdirs-4.2.2.dist-info/licenses/LICENSE b/setuptools/_vendor/platformdirs-4.2.2.dist-info/licenses/LICENSE
new file mode 100644
index 0000000000..f35fed9191
--- /dev/null
+++ b/setuptools/_vendor/platformdirs-4.2.2.dist-info/licenses/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2010-202x The platformdirs developers
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/setuptools/_vendor/platformdirs/__init__.py b/setuptools/_vendor/platformdirs/__init__.py
new file mode 100644
index 0000000000..3f7d9490d1
--- /dev/null
+++ b/setuptools/_vendor/platformdirs/__init__.py
@@ -0,0 +1,627 @@
+"""
+Utilities for determining application-specific dirs.
+
+See  for details and usage.
+
+"""
+
+from __future__ import annotations
+
+import os
+import sys
+from typing import TYPE_CHECKING
+
+from .api import PlatformDirsABC
+from .version import __version__
+from .version import __version_tuple__ as __version_info__
+
+if TYPE_CHECKING:
+    from pathlib import Path
+    from typing import Literal
+
+
+def _set_platform_dir_class() -> type[PlatformDirsABC]:
+    if sys.platform == "win32":
+        from platformdirs.windows import Windows as Result  # noqa: PLC0415
+    elif sys.platform == "darwin":
+        from platformdirs.macos import MacOS as Result  # noqa: PLC0415
+    else:
+        from platformdirs.unix import Unix as Result  # noqa: PLC0415
+
+    if os.getenv("ANDROID_DATA") == "/data" and os.getenv("ANDROID_ROOT") == "/system":
+        if os.getenv("SHELL") or os.getenv("PREFIX"):
+            return Result
+
+        from platformdirs.android import _android_folder  # noqa: PLC0415
+
+        if _android_folder() is not None:
+            from platformdirs.android import Android  # noqa: PLC0415
+
+            return Android  # return to avoid redefinition of a result
+
+    return Result
+
+
+PlatformDirs = _set_platform_dir_class()  #: Currently active platform
+AppDirs = PlatformDirs  #: Backwards compatibility with appdirs
+
+
+def user_data_dir(
+    appname: str | None = None,
+    appauthor: str | None | Literal[False] = None,
+    version: str | None = None,
+    roaming: bool = False,  # noqa: FBT001, FBT002
+    ensure_exists: bool = False,  # noqa: FBT001, FBT002
+) -> str:
+    """
+    :param appname: See `appname `.
+    :param appauthor: See `appauthor `.
+    :param version: See `version `.
+    :param roaming: See `roaming `.
+    :param ensure_exists: See `ensure_exists `.
+    :returns: data directory tied to the user
+    """
+    return PlatformDirs(
+        appname=appname,
+        appauthor=appauthor,
+        version=version,
+        roaming=roaming,
+        ensure_exists=ensure_exists,
+    ).user_data_dir
+
+
+def site_data_dir(
+    appname: str | None = None,
+    appauthor: str | None | Literal[False] = None,
+    version: str | None = None,
+    multipath: bool = False,  # noqa: FBT001, FBT002
+    ensure_exists: bool = False,  # noqa: FBT001, FBT002
+) -> str:
+    """
+    :param appname: See `appname `.
+    :param appauthor: See `appauthor `.
+    :param version: See `version `.
+    :param multipath: See `roaming `.
+    :param ensure_exists: See `ensure_exists `.
+    :returns: data directory shared by users
+    """
+    return PlatformDirs(
+        appname=appname,
+        appauthor=appauthor,
+        version=version,
+        multipath=multipath,
+        ensure_exists=ensure_exists,
+    ).site_data_dir
+
+
+def user_config_dir(
+    appname: str | None = None,
+    appauthor: str | None | Literal[False] = None,
+    version: str | None = None,
+    roaming: bool = False,  # noqa: FBT001, FBT002
+    ensure_exists: bool = False,  # noqa: FBT001, FBT002
+) -> str:
+    """
+    :param appname: See `appname `.
+    :param appauthor: See `appauthor `.
+    :param version: See `version `.
+    :param roaming: See `roaming `.
+    :param ensure_exists: See `ensure_exists `.
+    :returns: config directory tied to the user
+    """
+    return PlatformDirs(
+        appname=appname,
+        appauthor=appauthor,
+        version=version,
+        roaming=roaming,
+        ensure_exists=ensure_exists,
+    ).user_config_dir
+
+
+def site_config_dir(
+    appname: str | None = None,
+    appauthor: str | None | Literal[False] = None,
+    version: str | None = None,
+    multipath: bool = False,  # noqa: FBT001, FBT002
+    ensure_exists: bool = False,  # noqa: FBT001, FBT002
+) -> str:
+    """
+    :param appname: See `appname `.
+    :param appauthor: See `appauthor `.
+    :param version: See `version `.
+    :param multipath: See `roaming `.
+    :param ensure_exists: See `ensure_exists `.
+    :returns: config directory shared by the users
+    """
+    return PlatformDirs(
+        appname=appname,
+        appauthor=appauthor,
+        version=version,
+        multipath=multipath,
+        ensure_exists=ensure_exists,
+    ).site_config_dir
+
+
+def user_cache_dir(
+    appname: str | None = None,
+    appauthor: str | None | Literal[False] = None,
+    version: str | None = None,
+    opinion: bool = True,  # noqa: FBT001, FBT002
+    ensure_exists: bool = False,  # noqa: FBT001, FBT002
+) -> str:
+    """
+    :param appname: See `appname `.
+    :param appauthor: See `appauthor `.
+    :param version: See `version `.
+    :param opinion: See `roaming `.
+    :param ensure_exists: See `ensure_exists `.
+    :returns: cache directory tied to the user
+    """
+    return PlatformDirs(
+        appname=appname,
+        appauthor=appauthor,
+        version=version,
+        opinion=opinion,
+        ensure_exists=ensure_exists,
+    ).user_cache_dir
+
+
+def site_cache_dir(
+    appname: str | None = None,
+    appauthor: str | None | Literal[False] = None,
+    version: str | None = None,
+    opinion: bool = True,  # noqa: FBT001, FBT002
+    ensure_exists: bool = False,  # noqa: FBT001, FBT002
+) -> str:
+    """
+    :param appname: See `appname `.
+    :param appauthor: See `appauthor `.
+    :param version: See `version `.
+    :param opinion: See `opinion `.
+    :param ensure_exists: See `ensure_exists `.
+    :returns: cache directory tied to the user
+    """
+    return PlatformDirs(
+        appname=appname,
+        appauthor=appauthor,
+        version=version,
+        opinion=opinion,
+        ensure_exists=ensure_exists,
+    ).site_cache_dir
+
+
+def user_state_dir(
+    appname: str | None = None,
+    appauthor: str | None | Literal[False] = None,
+    version: str | None = None,
+    roaming: bool = False,  # noqa: FBT001, FBT002
+    ensure_exists: bool = False,  # noqa: FBT001, FBT002
+) -> str:
+    """
+    :param appname: See `appname `.
+    :param appauthor: See `appauthor `.
+    :param version: See `version `.
+    :param roaming: See `roaming `.
+    :param ensure_exists: See `ensure_exists `.
+    :returns: state directory tied to the user
+    """
+    return PlatformDirs(
+        appname=appname,
+        appauthor=appauthor,
+        version=version,
+        roaming=roaming,
+        ensure_exists=ensure_exists,
+    ).user_state_dir
+
+
+def user_log_dir(
+    appname: str | None = None,
+    appauthor: str | None | Literal[False] = None,
+    version: str | None = None,
+    opinion: bool = True,  # noqa: FBT001, FBT002
+    ensure_exists: bool = False,  # noqa: FBT001, FBT002
+) -> str:
+    """
+    :param appname: See `appname `.
+    :param appauthor: See `appauthor `.
+    :param version: See `version `.
+    :param opinion: See `roaming `.
+    :param ensure_exists: See `ensure_exists `.
+    :returns: log directory tied to the user
+    """
+    return PlatformDirs(
+        appname=appname,
+        appauthor=appauthor,
+        version=version,
+        opinion=opinion,
+        ensure_exists=ensure_exists,
+    ).user_log_dir
+
+
+def user_documents_dir() -> str:
+    """:returns: documents directory tied to the user"""
+    return PlatformDirs().user_documents_dir
+
+
+def user_downloads_dir() -> str:
+    """:returns: downloads directory tied to the user"""
+    return PlatformDirs().user_downloads_dir
+
+
+def user_pictures_dir() -> str:
+    """:returns: pictures directory tied to the user"""
+    return PlatformDirs().user_pictures_dir
+
+
+def user_videos_dir() -> str:
+    """:returns: videos directory tied to the user"""
+    return PlatformDirs().user_videos_dir
+
+
+def user_music_dir() -> str:
+    """:returns: music directory tied to the user"""
+    return PlatformDirs().user_music_dir
+
+
+def user_desktop_dir() -> str:
+    """:returns: desktop directory tied to the user"""
+    return PlatformDirs().user_desktop_dir
+
+
+def user_runtime_dir(
+    appname: str | None = None,
+    appauthor: str | None | Literal[False] = None,
+    version: str | None = None,
+    opinion: bool = True,  # noqa: FBT001, FBT002
+    ensure_exists: bool = False,  # noqa: FBT001, FBT002
+) -> str:
+    """
+    :param appname: See `appname `.
+    :param appauthor: See `appauthor `.
+    :param version: See `version `.
+    :param opinion: See `opinion `.
+    :param ensure_exists: See `ensure_exists `.
+    :returns: runtime directory tied to the user
+    """
+    return PlatformDirs(
+        appname=appname,
+        appauthor=appauthor,
+        version=version,
+        opinion=opinion,
+        ensure_exists=ensure_exists,
+    ).user_runtime_dir
+
+
+def site_runtime_dir(
+    appname: str | None = None,
+    appauthor: str | None | Literal[False] = None,
+    version: str | None = None,
+    opinion: bool = True,  # noqa: FBT001, FBT002
+    ensure_exists: bool = False,  # noqa: FBT001, FBT002
+) -> str:
+    """
+    :param appname: See `appname `.
+    :param appauthor: See `appauthor `.
+    :param version: See `version `.
+    :param opinion: See `opinion `.
+    :param ensure_exists: See `ensure_exists `.
+    :returns: runtime directory shared by users
+    """
+    return PlatformDirs(
+        appname=appname,
+        appauthor=appauthor,
+        version=version,
+        opinion=opinion,
+        ensure_exists=ensure_exists,
+    ).site_runtime_dir
+
+
+def user_data_path(
+    appname: str | None = None,
+    appauthor: str | None | Literal[False] = None,
+    version: str | None = None,
+    roaming: bool = False,  # noqa: FBT001, FBT002
+    ensure_exists: bool = False,  # noqa: FBT001, FBT002
+) -> Path:
+    """
+    :param appname: See `appname `.
+    :param appauthor: See `appauthor `.
+    :param version: See `version `.
+    :param roaming: See `roaming `.
+    :param ensure_exists: See `ensure_exists `.
+    :returns: data path tied to the user
+    """
+    return PlatformDirs(
+        appname=appname,
+        appauthor=appauthor,
+        version=version,
+        roaming=roaming,
+        ensure_exists=ensure_exists,
+    ).user_data_path
+
+
+def site_data_path(
+    appname: str | None = None,
+    appauthor: str | None | Literal[False] = None,
+    version: str | None = None,
+    multipath: bool = False,  # noqa: FBT001, FBT002
+    ensure_exists: bool = False,  # noqa: FBT001, FBT002
+) -> Path:
+    """
+    :param appname: See `appname `.
+    :param appauthor: See `appauthor `.
+    :param version: See `version `.
+    :param multipath: See `multipath `.
+    :param ensure_exists: See `ensure_exists `.
+    :returns: data path shared by users
+    """
+    return PlatformDirs(
+        appname=appname,
+        appauthor=appauthor,
+        version=version,
+        multipath=multipath,
+        ensure_exists=ensure_exists,
+    ).site_data_path
+
+
+def user_config_path(
+    appname: str | None = None,
+    appauthor: str | None | Literal[False] = None,
+    version: str | None = None,
+    roaming: bool = False,  # noqa: FBT001, FBT002
+    ensure_exists: bool = False,  # noqa: FBT001, FBT002
+) -> Path:
+    """
+    :param appname: See `appname `.
+    :param appauthor: See `appauthor `.
+    :param version: See `version `.
+    :param roaming: See `roaming `.
+    :param ensure_exists: See `ensure_exists `.
+    :returns: config path tied to the user
+    """
+    return PlatformDirs(
+        appname=appname,
+        appauthor=appauthor,
+        version=version,
+        roaming=roaming,
+        ensure_exists=ensure_exists,
+    ).user_config_path
+
+
+def site_config_path(
+    appname: str | None = None,
+    appauthor: str | None | Literal[False] = None,
+    version: str | None = None,
+    multipath: bool = False,  # noqa: FBT001, FBT002
+    ensure_exists: bool = False,  # noqa: FBT001, FBT002
+) -> Path:
+    """
+    :param appname: See `appname `.
+    :param appauthor: See `appauthor `.
+    :param version: See `version `.
+    :param multipath: See `roaming `.
+    :param ensure_exists: See `ensure_exists `.
+    :returns: config path shared by the users
+    """
+    return PlatformDirs(
+        appname=appname,
+        appauthor=appauthor,
+        version=version,
+        multipath=multipath,
+        ensure_exists=ensure_exists,
+    ).site_config_path
+
+
+def site_cache_path(
+    appname: str | None = None,
+    appauthor: str | None | Literal[False] = None,
+    version: str | None = None,
+    opinion: bool = True,  # noqa: FBT001, FBT002
+    ensure_exists: bool = False,  # noqa: FBT001, FBT002
+) -> Path:
+    """
+    :param appname: See `appname `.
+    :param appauthor: See `appauthor `.
+    :param version: See `version `.
+    :param opinion: See `opinion `.
+    :param ensure_exists: See `ensure_exists `.
+    :returns: cache directory tied to the user
+    """
+    return PlatformDirs(
+        appname=appname,
+        appauthor=appauthor,
+        version=version,
+        opinion=opinion,
+        ensure_exists=ensure_exists,
+    ).site_cache_path
+
+
+def user_cache_path(
+    appname: str | None = None,
+    appauthor: str | None | Literal[False] = None,
+    version: str | None = None,
+    opinion: bool = True,  # noqa: FBT001, FBT002
+    ensure_exists: bool = False,  # noqa: FBT001, FBT002
+) -> Path:
+    """
+    :param appname: See `appname `.
+    :param appauthor: See `appauthor `.
+    :param version: See `version `.
+    :param opinion: See `roaming `.
+    :param ensure_exists: See `ensure_exists `.
+    :returns: cache path tied to the user
+    """
+    return PlatformDirs(
+        appname=appname,
+        appauthor=appauthor,
+        version=version,
+        opinion=opinion,
+        ensure_exists=ensure_exists,
+    ).user_cache_path
+
+
+def user_state_path(
+    appname: str | None = None,
+    appauthor: str | None | Literal[False] = None,
+    version: str | None = None,
+    roaming: bool = False,  # noqa: FBT001, FBT002
+    ensure_exists: bool = False,  # noqa: FBT001, FBT002
+) -> Path:
+    """
+    :param appname: See `appname `.
+    :param appauthor: See `appauthor `.
+    :param version: See `version `.
+    :param roaming: See `roaming `.
+    :param ensure_exists: See `ensure_exists `.
+    :returns: state path tied to the user
+    """
+    return PlatformDirs(
+        appname=appname,
+        appauthor=appauthor,
+        version=version,
+        roaming=roaming,
+        ensure_exists=ensure_exists,
+    ).user_state_path
+
+
+def user_log_path(
+    appname: str | None = None,
+    appauthor: str | None | Literal[False] = None,
+    version: str | None = None,
+    opinion: bool = True,  # noqa: FBT001, FBT002
+    ensure_exists: bool = False,  # noqa: FBT001, FBT002
+) -> Path:
+    """
+    :param appname: See `appname `.
+    :param appauthor: See `appauthor `.
+    :param version: See `version `.
+    :param opinion: See `roaming `.
+    :param ensure_exists: See `ensure_exists `.
+    :returns: log path tied to the user
+    """
+    return PlatformDirs(
+        appname=appname,
+        appauthor=appauthor,
+        version=version,
+        opinion=opinion,
+        ensure_exists=ensure_exists,
+    ).user_log_path
+
+
+def user_documents_path() -> Path:
+    """:returns: documents a path tied to the user"""
+    return PlatformDirs().user_documents_path
+
+
+def user_downloads_path() -> Path:
+    """:returns: downloads path tied to the user"""
+    return PlatformDirs().user_downloads_path
+
+
+def user_pictures_path() -> Path:
+    """:returns: pictures path tied to the user"""
+    return PlatformDirs().user_pictures_path
+
+
+def user_videos_path() -> Path:
+    """:returns: videos path tied to the user"""
+    return PlatformDirs().user_videos_path
+
+
+def user_music_path() -> Path:
+    """:returns: music path tied to the user"""
+    return PlatformDirs().user_music_path
+
+
+def user_desktop_path() -> Path:
+    """:returns: desktop path tied to the user"""
+    return PlatformDirs().user_desktop_path
+
+
+def user_runtime_path(
+    appname: str | None = None,
+    appauthor: str | None | Literal[False] = None,
+    version: str | None = None,
+    opinion: bool = True,  # noqa: FBT001, FBT002
+    ensure_exists: bool = False,  # noqa: FBT001, FBT002
+) -> Path:
+    """
+    :param appname: See `appname `.
+    :param appauthor: See `appauthor `.
+    :param version: See `version `.
+    :param opinion: See `opinion `.
+    :param ensure_exists: See `ensure_exists `.
+    :returns: runtime path tied to the user
+    """
+    return PlatformDirs(
+        appname=appname,
+        appauthor=appauthor,
+        version=version,
+        opinion=opinion,
+        ensure_exists=ensure_exists,
+    ).user_runtime_path
+
+
+def site_runtime_path(
+    appname: str | None = None,
+    appauthor: str | None | Literal[False] = None,
+    version: str | None = None,
+    opinion: bool = True,  # noqa: FBT001, FBT002
+    ensure_exists: bool = False,  # noqa: FBT001, FBT002
+) -> Path:
+    """
+    :param appname: See `appname `.
+    :param appauthor: See `appauthor `.
+    :param version: See `version `.
+    :param opinion: See `opinion `.
+    :param ensure_exists: See `ensure_exists `.
+    :returns: runtime path shared by users
+    """
+    return PlatformDirs(
+        appname=appname,
+        appauthor=appauthor,
+        version=version,
+        opinion=opinion,
+        ensure_exists=ensure_exists,
+    ).site_runtime_path
+
+
+__all__ = [
+    "AppDirs",
+    "PlatformDirs",
+    "PlatformDirsABC",
+    "__version__",
+    "__version_info__",
+    "site_cache_dir",
+    "site_cache_path",
+    "site_config_dir",
+    "site_config_path",
+    "site_data_dir",
+    "site_data_path",
+    "site_runtime_dir",
+    "site_runtime_path",
+    "user_cache_dir",
+    "user_cache_path",
+    "user_config_dir",
+    "user_config_path",
+    "user_data_dir",
+    "user_data_path",
+    "user_desktop_dir",
+    "user_desktop_path",
+    "user_documents_dir",
+    "user_documents_path",
+    "user_downloads_dir",
+    "user_downloads_path",
+    "user_log_dir",
+    "user_log_path",
+    "user_music_dir",
+    "user_music_path",
+    "user_pictures_dir",
+    "user_pictures_path",
+    "user_runtime_dir",
+    "user_runtime_path",
+    "user_state_dir",
+    "user_state_path",
+    "user_videos_dir",
+    "user_videos_path",
+]
diff --git a/setuptools/_vendor/platformdirs/__main__.py b/setuptools/_vendor/platformdirs/__main__.py
new file mode 100644
index 0000000000..922c521358
--- /dev/null
+++ b/setuptools/_vendor/platformdirs/__main__.py
@@ -0,0 +1,55 @@
+"""Main entry point."""
+
+from __future__ import annotations
+
+from platformdirs import PlatformDirs, __version__
+
+PROPS = (
+    "user_data_dir",
+    "user_config_dir",
+    "user_cache_dir",
+    "user_state_dir",
+    "user_log_dir",
+    "user_documents_dir",
+    "user_downloads_dir",
+    "user_pictures_dir",
+    "user_videos_dir",
+    "user_music_dir",
+    "user_runtime_dir",
+    "site_data_dir",
+    "site_config_dir",
+    "site_cache_dir",
+    "site_runtime_dir",
+)
+
+
+def main() -> None:
+    """Run the main entry point."""
+    app_name = "MyApp"
+    app_author = "MyCompany"
+
+    print(f"-- platformdirs {__version__} --")  # noqa: T201
+
+    print("-- app dirs (with optional 'version')")  # noqa: T201
+    dirs = PlatformDirs(app_name, app_author, version="1.0")
+    for prop in PROPS:
+        print(f"{prop}: {getattr(dirs, prop)}")  # noqa: T201
+
+    print("\n-- app dirs (without optional 'version')")  # noqa: T201
+    dirs = PlatformDirs(app_name, app_author)
+    for prop in PROPS:
+        print(f"{prop}: {getattr(dirs, prop)}")  # noqa: T201
+
+    print("\n-- app dirs (without optional 'appauthor')")  # noqa: T201
+    dirs = PlatformDirs(app_name)
+    for prop in PROPS:
+        print(f"{prop}: {getattr(dirs, prop)}")  # noqa: T201
+
+    print("\n-- app dirs (with disabled 'appauthor')")  # noqa: T201
+    dirs = PlatformDirs(app_name, appauthor=False)
+    for prop in PROPS:
+        print(f"{prop}: {getattr(dirs, prop)}")  # noqa: T201
+
+
+if __name__ == "__main__":
+    main()
diff --git a/setuptools/_vendor/platformdirs/android.py b/setuptools/_vendor/platformdirs/android.py
new file mode 100644
index 0000000000..afd3141c72
--- /dev/null
+++ b/setuptools/_vendor/platformdirs/android.py
@@ -0,0 +1,249 @@
+"""Android."""
+
+from __future__ import annotations
+
+import os
+import re
+import sys
+from functools import lru_cache
+from typing import TYPE_CHECKING, cast
+
+from .api import PlatformDirsABC
+
+
+class Android(PlatformDirsABC):
+    """
+    Follows the guidance `from here `_.
+
+    Makes use of the `appname `, `version
+    `, `ensure_exists `.
+
+    """
+
+    @property
+    def user_data_dir(self) -> str:
+        """:return: data directory tied to the user, e.g. ``/data/user///files/``"""
+        return self._append_app_name_and_version(cast(str, _android_folder()), "files")
+
+    @property
+    def site_data_dir(self) -> str:
+        """:return: data directory shared by users, same as `user_data_dir`"""
+        return self.user_data_dir
+
+    @property
+    def user_config_dir(self) -> str:
+        """
+        :return: config directory tied to the user, e.g. \
+        ``/data/user///shared_prefs/``
+        """
+        return self._append_app_name_and_version(cast(str, _android_folder()), "shared_prefs")
+
+    @property
+    def site_config_dir(self) -> str:
+        """:return: config directory shared by the users, same as `user_config_dir`"""
+        return self.user_config_dir
+
+    @property
+    def user_cache_dir(self) -> str:
+        """:return: cache directory tied to the user, e.g.,``/data/user///cache/``"""
+        return self._append_app_name_and_version(cast(str, _android_folder()), "cache")
+
+    @property
+    def site_cache_dir(self) -> str:
+        """:return: cache directory shared by users, same as `user_cache_dir`"""
+        return self.user_cache_dir
+
+    @property
+    def user_state_dir(self) -> str:
+        """:return: state directory tied to the user, same as `user_data_dir`"""
+        return self.user_data_dir
+
+    @property
+    def user_log_dir(self) -> str:
+        """
+        :return: log directory tied to the user, same as `user_cache_dir` if not opinionated else ``log`` in it,
+          e.g. ``/data/user///cache//log``
+        """
+        path = self.user_cache_dir
+        if self.opinion:
+            path = os.path.join(path, "log")  # noqa: PTH118
+        return path
+
+    @property
+    def user_documents_dir(self) -> str:
+        """:return: documents directory tied to the user e.g. ``/storage/emulated/0/Documents``"""
+        return _android_documents_folder()
+
+    @property
+    def user_downloads_dir(self) -> str:
+        """:return: downloads directory tied to the user e.g. ``/storage/emulated/0/Downloads``"""
+        return _android_downloads_folder()
+
+    @property
+    def user_pictures_dir(self) -> str:
+        """:return: pictures directory tied to the user e.g. ``/storage/emulated/0/Pictures``"""
+        return _android_pictures_folder()
+
+    @property
+    def user_videos_dir(self) -> str:
+        """:return: videos directory tied to the user e.g. ``/storage/emulated/0/DCIM/Camera``"""
+        return _android_videos_folder()
+
+    @property
+    def user_music_dir(self) -> str:
+        """:return: music directory tied to the user e.g. ``/storage/emulated/0/Music``"""
+        return _android_music_folder()
+
+    @property
+    def user_desktop_dir(self) -> str:
+        """:return: desktop directory tied to the user e.g. ``/storage/emulated/0/Desktop``"""
+        return "/storage/emulated/0/Desktop"
+
+    @property
+    def user_runtime_dir(self) -> str:
+        """
+        :return: runtime directory tied to the user, same as `user_cache_dir` if not opinionated else ``tmp`` in it,
+          e.g. ``/data/user///cache//tmp``
+        """
+        path = self.user_cache_dir
+        if self.opinion:
+            path = os.path.join(path, "tmp")  # noqa: PTH118
+        return path
+
+    @property
+    def site_runtime_dir(self) -> str:
+        """:return: runtime directory shared by users, same as `user_runtime_dir`"""
+        return self.user_runtime_dir
+
+
+@lru_cache(maxsize=1)
+def _android_folder() -> str | None:  # noqa: C901, PLR0912
+    """:return: base folder for the Android OS or None if it cannot be found"""
+    result: str | None = None
+    # type checker isn't happy with our "import android", just don't do this when type checking see
+    # https://stackoverflow.com/a/61394121
+    if not TYPE_CHECKING:
+        try:
+            # First try to get a path to android app using python4android (if available)...
+            from android import mActivity  # noqa: PLC0415
+
+            context = cast("android.content.Context", mActivity.getApplicationContext())  # noqa: F821
+            result = context.getFilesDir().getParentFile().getAbsolutePath()
+        except Exception:  # noqa: BLE001
+            result = None
+    if result is None:
+        try:
+            # ...and fall back to using plain pyjnius, if python4android isn't available or doesn't deliver any useful
+            # result...
+            from jnius import autoclass  # noqa: PLC0415
+
+            context = autoclass("android.content.Context")
+            result = context.getFilesDir().getParentFile().getAbsolutePath()
+        except Exception:  # noqa: BLE001
+            result = None
+    if result is None:
+        # and if that fails, too, find an android folder looking at path on the sys.path
+        # warning: only works for apps installed under /data, not adopted storage etc.
+        pattern = re.compile(r"/data/(data|user/\d+)/(.+)/files")
+        for path in sys.path:
+            if pattern.match(path):
+                result = path.split("/files")[0]
+                break
+        else:
+            result = None
+    if result is None:
+        # one last try: find an android folder looking at path on the sys.path taking adopted storage paths into
+        # account
+        pattern = re.compile(r"/mnt/expand/[a-fA-F0-9-]{36}/(data|user/\d+)/(.+)/files")
+        for path in sys.path:
+            if pattern.match(path):
+                result = path.split("/files")[0]
+                break
+        else:
+            result = None
+    return result
+
+
+@lru_cache(maxsize=1)
+def _android_documents_folder() -> str:
+    """:return: documents folder for the Android OS"""
+    # Get directories with pyjnius
+    try:
+        from jnius import autoclass  # noqa: PLC0415
+
+        context = autoclass("android.content.Context")
+        environment = autoclass("android.os.Environment")
+        documents_dir: str = context.getExternalFilesDir(environment.DIRECTORY_DOCUMENTS).getAbsolutePath()
+    except Exception:  # noqa: BLE001
+        documents_dir = "/storage/emulated/0/Documents"
+
+    return documents_dir
+
+
+@lru_cache(maxsize=1)
+def _android_downloads_folder() -> str:
+    """:return: downloads folder for the Android OS"""
+    # Get directories with pyjnius
+    try:
+        from jnius import autoclass  # noqa: PLC0415
+
+        context = autoclass("android.content.Context")
+        environment = autoclass("android.os.Environment")
+        downloads_dir: str = context.getExternalFilesDir(environment.DIRECTORY_DOWNLOADS).getAbsolutePath()
+    except Exception:  # noqa: BLE001
+        downloads_dir = "/storage/emulated/0/Downloads"
+
+    return downloads_dir
+
+
+@lru_cache(maxsize=1)
+def _android_pictures_folder() -> str:
+    """:return: pictures folder for the Android OS"""
+    # Get directories with pyjnius
+    try:
+        from jnius import autoclass  # noqa: PLC0415
+
+        context = autoclass("android.content.Context")
+        environment = autoclass("android.os.Environment")
+        pictures_dir: str = context.getExternalFilesDir(environment.DIRECTORY_PICTURES).getAbsolutePath()
+    except Exception:  # noqa: BLE001
+        pictures_dir = "/storage/emulated/0/Pictures"
+
+    return pictures_dir
+
+
+@lru_cache(maxsize=1)
+def _android_videos_folder() -> str:
+    """:return: videos folder for the Android OS"""
+    # Get directories with pyjnius
+    try:
+        from jnius import autoclass  # noqa: PLC0415
+
+        context = autoclass("android.content.Context")
+        environment = autoclass("android.os.Environment")
+        videos_dir: str = context.getExternalFilesDir(environment.DIRECTORY_DCIM).getAbsolutePath()
+    except Exception:  # noqa: BLE001
+        videos_dir = "/storage/emulated/0/DCIM/Camera"
+
+    return videos_dir
+
+
+@lru_cache(maxsize=1)
+def _android_music_folder() -> str:
+    """:return: music folder for the Android OS"""
+    # Get directories with pyjnius
+    try:
+        from jnius import autoclass  # noqa: PLC0415
+
+        context = autoclass("android.content.Context")
+        environment = autoclass("android.os.Environment")
+        music_dir: str = context.getExternalFilesDir(environment.DIRECTORY_MUSIC).getAbsolutePath()
+    except Exception:  # noqa: BLE001
+        music_dir = "/storage/emulated/0/Music"
+
+    return music_dir
+
+
+__all__ = [
+    "Android",
+]
diff --git a/setuptools/_vendor/platformdirs/api.py b/setuptools/_vendor/platformdirs/api.py
new file mode 100644
index 0000000000..c50caa648a
--- /dev/null
+++ b/setuptools/_vendor/platformdirs/api.py
@@ -0,0 +1,292 @@
+"""Base API."""
+
+from __future__ import annotations
+
+import os
+from abc import ABC, abstractmethod
+from pathlib import Path
+from typing import TYPE_CHECKING
+
+if TYPE_CHECKING:
+    from typing import Iterator, Literal
+
+
+class PlatformDirsABC(ABC):  # noqa: PLR0904
+    """Abstract base class for platform directories."""
+
+    def __init__(  # noqa: PLR0913, PLR0917
+        self,
+        appname: str | None = None,
+        appauthor: str | None | Literal[False] = None,
+        version: str | None = None,
+        roaming: bool = False,  # noqa: FBT001, FBT002
+        multipath: bool = False,  # noqa: FBT001, FBT002
+        opinion: bool = True,  # noqa: FBT001, FBT002
+        ensure_exists: bool = False,  # noqa: FBT001, FBT002
+    ) -> None:
+        """
+        Create a new platform directory.
+
+        :param appname: See `appname`.
+        :param appauthor: See `appauthor`.
+        :param version: See `version`.
+        :param roaming: See `roaming`.
+        :param multipath: See `multipath`.
+        :param opinion: See `opinion`.
+        :param ensure_exists: See `ensure_exists`.
+
+        """
+        self.appname = appname  #: The name of application.
+        self.appauthor = appauthor
+        """
+        The name of the app author or distributing body for this application.
+
+        Typically, it is the owning company name. Defaults to `appname`. You may pass ``False`` to disable it.
+
+        """
+        self.version = version
+        """
+        An optional version path element to append to the path.
+
+        You might want to use this if you want multiple versions of your app to be able to run independently. If used,
+        this would typically be ``.``.
+
+        """
+        self.roaming = roaming
+        """
+        Whether to use the roaming appdata directory on Windows.
+
+        That means that for users on a Windows network setup for roaming profiles, this user data will be synced on
+        login (see
+        `here `_).
+
+        """
+        self.multipath = multipath
+        """
+        An optional parameter which indicates that the entire list of data dirs should be returned.
+
+        By default, the first item would only be returned.
+
+        """
+        self.opinion = opinion  #: A flag to indicating to use opinionated values.
+        self.ensure_exists = ensure_exists
+        """
+        Optionally create the directory (and any missing parents) upon access if it does not exist.
+
+        By default, no directories are created.
+
+        """
+
+    def _append_app_name_and_version(self, *base: str) -> str:
+        params = list(base[1:])
+        if self.appname:
+            params.append(self.appname)
+            if self.version:
+                params.append(self.version)
+        path = os.path.join(base[0], *params)  # noqa: PTH118
+        self._optionally_create_directory(path)
+        return path
+
+    def _optionally_create_directory(self, path: str) -> None:
+        if self.ensure_exists:
+            Path(path).mkdir(parents=True, exist_ok=True)
+
+    @property
+    @abstractmethod
+    def user_data_dir(self) -> str:
+        """:return: data directory tied to the user"""
+
+    @property
+    @abstractmethod
+    def site_data_dir(self) -> str:
+        """:return: data directory shared by users"""
+
+    @property
+    @abstractmethod
+    def user_config_dir(self) -> str:
+        """:return: config directory tied to the user"""
+
+    @property
+    @abstractmethod
+    def site_config_dir(self) -> str:
+        """:return: config directory shared by the users"""
+
+    @property
+    @abstractmethod
+    def user_cache_dir(self) -> str:
+        """:return: cache directory tied to the user"""
+
+    @property
+    @abstractmethod
+    def site_cache_dir(self) -> str:
+        """:return: cache directory shared by users"""
+
+    @property
+    @abstractmethod
+    def user_state_dir(self) -> str:
+        """:return: state directory tied to the user"""
+
+    @property
+    @abstractmethod
+    def user_log_dir(self) -> str:
+        """:return: log directory tied to the user"""
+
+    @property
+    @abstractmethod
+    def user_documents_dir(self) -> str:
+        """:return: documents directory tied to the user"""
+
+    @property
+    @abstractmethod
+    def user_downloads_dir(self) -> str:
+        """:return: downloads directory tied to the user"""
+
+    @property
+    @abstractmethod
+    def user_pictures_dir(self) -> str:
+        """:return: pictures directory tied to the user"""
+
+    @property
+    @abstractmethod
+    def user_videos_dir(self) -> str:
+        """:return: videos directory tied to the user"""
+
+    @property
+    @abstractmethod
+    def user_music_dir(self) -> str:
+        """:return: music directory tied to the user"""
+
+    @property
+    @abstractmethod
+    def user_desktop_dir(self) -> str:
+        """:return: desktop directory tied to the user"""
+
+    @property
+    @abstractmethod
+    def user_runtime_dir(self) -> str:
+        """:return: runtime directory tied to the user"""
+
+    @property
+    @abstractmethod
+    def site_runtime_dir(self) -> str:
+        """:return: runtime directory shared by users"""
+
+    @property
+    def user_data_path(self) -> Path:
+        """:return: data path tied to the user"""
+        return Path(self.user_data_dir)
+
+    @property
+    def site_data_path(self) -> Path:
+        """:return: data path shared by users"""
+        return Path(self.site_data_dir)
+
+    @property
+    def user_config_path(self) -> Path:
+        """:return: config path tied to the user"""
+        return Path(self.user_config_dir)
+
+    @property
+    def site_config_path(self) -> Path:
+        """:return: config path shared by the users"""
+        return Path(self.site_config_dir)
+
+    @property
+    def user_cache_path(self) -> Path:
+        """:return: cache path tied to the user"""
+        return Path(self.user_cache_dir)
+
+    @property
+    def site_cache_path(self) -> Path:
+        """:return: cache path shared by users"""
+        return Path(self.site_cache_dir)
+
+    @property
+    def user_state_path(self) -> Path:
+        """:return: state path tied to the user"""
+        return Path(self.user_state_dir)
+
+    @property
+    def user_log_path(self) -> Path:
+        """:return: log path tied to the user"""
+        return Path(self.user_log_dir)
+
+    @property
+    def user_documents_path(self) -> Path:
+        """:return: documents a path tied to the user"""
+        return Path(self.user_documents_dir)
+
+    @property
+    def user_downloads_path(self) -> Path:
+        """:return: downloads path tied to the user"""
+        return Path(self.user_downloads_dir)
+
+    @property
+    def user_pictures_path(self) -> Path:
+        """:return: pictures path tied to the user"""
+        return Path(self.user_pictures_dir)
+
+    @property
+    def user_videos_path(self) -> Path:
+        """:return: videos path tied to the user"""
+        return Path(self.user_videos_dir)
+
+    @property
+    def user_music_path(self) -> Path:
+        """:return: music path tied to the user"""
+        return Path(self.user_music_dir)
+
+    @property
+    def user_desktop_path(self) -> Path:
+        """:return: desktop path tied to the user"""
+        return Path(self.user_desktop_dir)
+
+    @property
+    def user_runtime_path(self) -> Path:
+        """:return: runtime path tied to the user"""
+        return Path(self.user_runtime_dir)
+
+    @property
+    def site_runtime_path(self) -> Path:
+        """:return: runtime path shared by users"""
+        return Path(self.site_runtime_dir)
+
+    def iter_config_dirs(self) -> Iterator[str]:
+        """:yield: all user and site configuration directories."""
+        yield self.user_config_dir
+        yield self.site_config_dir
+
+    def iter_data_dirs(self) -> Iterator[str]:
+        """:yield: all user and site data directories."""
+        yield self.user_data_dir
+        yield self.site_data_dir
+
+    def iter_cache_dirs(self) -> Iterator[str]:
+        """:yield: all user and site cache directories."""
+        yield self.user_cache_dir
+        yield self.site_cache_dir
+
+    def iter_runtime_dirs(self) -> Iterator[str]:
+        """:yield: all user and site runtime directories."""
+        yield self.user_runtime_dir
+        yield self.site_runtime_dir
+
+    def iter_config_paths(self) -> Iterator[Path]:
+        """:yield: all user and site configuration paths."""
+        for path in self.iter_config_dirs():
+            yield Path(path)
+
+    def iter_data_paths(self) -> Iterator[Path]:
+        """:yield: all user and site data paths."""
+        for path in self.iter_data_dirs():
+            yield Path(path)
+
+    def iter_cache_paths(self) -> Iterator[Path]:
+        """:yield: all user and site cache paths."""
+        for path in self.iter_cache_dirs():
+            yield Path(path)
+
+    def iter_runtime_paths(self) -> Iterator[Path]:
+        """:yield: all user and site runtime paths."""
+        for path in self.iter_runtime_dirs():
+            yield Path(path)
diff --git a/setuptools/_vendor/platformdirs/macos.py b/setuptools/_vendor/platformdirs/macos.py
new file mode 100644
index 0000000000..eb1ba5df1d
--- /dev/null
+++ b/setuptools/_vendor/platformdirs/macos.py
@@ -0,0 +1,130 @@
+"""macOS."""
+
+from __future__ import annotations
+
+import os.path
+import sys
+
+from .api import PlatformDirsABC
+
+
+class MacOS(PlatformDirsABC):
+    """
+    Platform directories for the macOS operating system.
+
+    Follows the guidance from
+    `Apple documentation `_.
+    Makes use of the `appname `,
+    `version `,
+    `ensure_exists `.
+
+    """
+
+    @property
+    def user_data_dir(self) -> str:
+        """:return: data directory tied to the user, e.g. ``~/Library/Application Support/$appname/$version``"""
+        return self._append_app_name_and_version(os.path.expanduser("~/Library/Application Support"))  # noqa: PTH111
+
+    @property
+    def site_data_dir(self) -> str:
+        """
+        :return: data directory shared by users, e.g. ``/Library/Application Support/$appname/$version``.
+          If we're using a Python binary managed by `Homebrew `_, the directory
+          will be under the Homebrew prefix, e.g. ``/opt/homebrew/share/$appname/$version``.
+          If `multipath ` is enabled, and we're in Homebrew,
+          the response is a multi-path string separated by ":", e.g.
+          ``/opt/homebrew/share/$appname/$version:/Library/Application Support/$appname/$version``
+        """
+        is_homebrew = sys.prefix.startswith("/opt/homebrew")
+        path_list = [self._append_app_name_and_version("/opt/homebrew/share")] if is_homebrew else []
+        path_list.append(self._append_app_name_and_version("/Library/Application Support"))
+        if self.multipath:
+            return os.pathsep.join(path_list)
+        return path_list[0]
+
+    @property
+    def user_config_dir(self) -> str:
+        """:return: config directory tied to the user, same as `user_data_dir`"""
+        return self.user_data_dir
+
+    @property
+    def site_config_dir(self) -> str:
+        """:return: config directory shared by the users, same as `site_data_dir`"""
+        return self.site_data_dir
+
+    @property
+    def user_cache_dir(self) -> str:
+        """:return: cache directory tied to the user, e.g. ``~/Library/Caches/$appname/$version``"""
+        return self._append_app_name_and_version(os.path.expanduser("~/Library/Caches"))  # noqa: PTH111
+
+    @property
+    def site_cache_dir(self) -> str:
+        """
+        :return: cache directory shared by users, e.g. ``/Library/Caches/$appname/$version``.
+          If we're using a Python binary managed by `Homebrew `_, the directory
+          will be under the Homebrew prefix, e.g. ``/opt/homebrew/var/cache/$appname/$version``.
+          If `multipath ` is enabled, and we're in Homebrew,
+          the response is a multi-path string separated by ":", e.g.
+          ``/opt/homebrew/var/cache/$appname/$version:/Library/Caches/$appname/$version``
+        """
+        is_homebrew = sys.prefix.startswith("/opt/homebrew")
+        path_list = [self._append_app_name_and_version("/opt/homebrew/var/cache")] if is_homebrew else []
+        path_list.append(self._append_app_name_and_version("/Library/Caches"))
+        if self.multipath:
+            return os.pathsep.join(path_list)
+        return path_list[0]
+
+    @property
+    def user_state_dir(self) -> str:
+        """:return: state directory tied to the user, same as `user_data_dir`"""
+        return self.user_data_dir
+
+    @property
+    def user_log_dir(self) -> str:
+        """:return: log directory tied to the user, e.g. ``~/Library/Logs/$appname/$version``"""
+        return self._append_app_name_and_version(os.path.expanduser("~/Library/Logs"))  # noqa: PTH111
+
+    @property
+    def user_documents_dir(self) -> str:
+        """:return: documents directory tied to the user, e.g. ``~/Documents``"""
+        return os.path.expanduser("~/Documents")  # noqa: PTH111
+
+    @property
+    def user_downloads_dir(self) -> str:
+        """:return: downloads directory tied to the user, e.g. ``~/Downloads``"""
+        return os.path.expanduser("~/Downloads")  # noqa: PTH111
+
+    @property
+    def user_pictures_dir(self) -> str:
+        """:return: pictures directory tied to the user, e.g. ``~/Pictures``"""
+        return os.path.expanduser("~/Pictures")  # noqa: PTH111
+
+    @property
+    def user_videos_dir(self) -> str:
+        """:return: videos directory tied to the user, e.g. ``~/Movies``"""
+        return os.path.expanduser("~/Movies")  # noqa: PTH111
+
+    @property
+    def user_music_dir(self) -> str:
+        """:return: music directory tied to the user, e.g. ``~/Music``"""
+        return os.path.expanduser("~/Music")  # noqa: PTH111
+
+    @property
+    def user_desktop_dir(self) -> str:
+        """:return: desktop directory tied to the user, e.g. ``~/Desktop``"""
+        return os.path.expanduser("~/Desktop")  # noqa: PTH111
+
+    @property
+    def user_runtime_dir(self) -> str:
+        """:return: runtime directory tied to the user, e.g. ``~/Library/Caches/TemporaryItems/$appname/$version``"""
+        return self._append_app_name_and_version(os.path.expanduser("~/Library/Caches/TemporaryItems"))  # noqa: PTH111
+
+    @property
+    def site_runtime_dir(self) -> str:
+        """:return: runtime directory shared by users, same as `user_runtime_dir`"""
+        return self.user_runtime_dir
+
+
+__all__ = [
+    "MacOS",
+]
diff --git a/setuptools/_vendor/platformdirs/py.typed b/setuptools/_vendor/platformdirs/py.typed
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/setuptools/_vendor/platformdirs/unix.py b/setuptools/_vendor/platformdirs/unix.py
new file mode 100644
index 0000000000..9500ade614
--- /dev/null
+++ b/setuptools/_vendor/platformdirs/unix.py
@@ -0,0 +1,275 @@
+"""Unix."""
+
+from __future__ import annotations
+
+import os
+import sys
+from configparser import ConfigParser
+from pathlib import Path
+from typing import Iterator, NoReturn
+
+from .api import PlatformDirsABC
+
+if sys.platform == "win32":
+
+    def getuid() -> NoReturn:
+        msg = "should only be used on Unix"
+        raise RuntimeError(msg)
+
+else:
+    from os import getuid
+
+
+class Unix(PlatformDirsABC):  # noqa: PLR0904
+    """
+    On Unix/Linux, we follow the `XDG Basedir Spec `_.
+
+    The spec allows overriding directories with environment variables. The examples shown are the default values,
+    alongside the name of the environment variable that overrides them. Makes use of the `appname
+    `, `version `, `multipath
+    `, `opinion `, `ensure_exists
+    `.
+
+    """
+
+    @property
+    def user_data_dir(self) -> str:
+        """
+        :return: data directory tied to the user, e.g. ``~/.local/share/$appname/$version`` or
+         ``$XDG_DATA_HOME/$appname/$version``
+        """
+        path = os.environ.get("XDG_DATA_HOME", "")
+        if not path.strip():
+            path = os.path.expanduser("~/.local/share")  # noqa: PTH111
+        return self._append_app_name_and_version(path)
+
+    @property
+    def _site_data_dirs(self) -> list[str]:
+        path = os.environ.get("XDG_DATA_DIRS", "")
+        if not path.strip():
+            path = f"/usr/local/share{os.pathsep}/usr/share"
+        return [self._append_app_name_and_version(p) for p in path.split(os.pathsep)]
+
+    @property
+    def site_data_dir(self) -> str:
+        """
+        :return: data directories shared by users (if `multipath ` is
+         enabled and ``XDG_DATA_DIRS`` is set and a multi path the response is also a multi path separated by the
+         OS path separator), e.g. ``/usr/local/share/$appname/$version`` or ``/usr/share/$appname/$version``
+        """
+        # XDG default for $XDG_DATA_DIRS; only first, if multipath is False
+        dirs = self._site_data_dirs
+        if not self.multipath:
+            return dirs[0]
+        return os.pathsep.join(dirs)
+
+    @property
+    def user_config_dir(self) -> str:
+        """
+        :return: config directory tied to the user, e.g. ``~/.config/$appname/$version`` or
+         ``$XDG_CONFIG_HOME/$appname/$version``
+        """
+        path = os.environ.get("XDG_CONFIG_HOME", "")
+        if not path.strip():
+            path = os.path.expanduser("~/.config")  # noqa: PTH111
+        return self._append_app_name_and_version(path)
+
+    @property
+    def _site_config_dirs(self) -> list[str]:
+        path = os.environ.get("XDG_CONFIG_DIRS", "")
+        if not path.strip():
+            path = "/etc/xdg"
+        return [self._append_app_name_and_version(p) for p in path.split(os.pathsep)]
+
+    @property
+    def site_config_dir(self) -> str:
+        """
+        :return: config directories shared by users (if `multipath `
+         is enabled and ``XDG_CONFIG_DIRS`` is set and a multi path the response is also a multi path separated by
+         the OS path separator), e.g. ``/etc/xdg/$appname/$version``
+        """
+        # XDG default for $XDG_CONFIG_DIRS only first, if multipath is False
+        dirs = self._site_config_dirs
+        if not self.multipath:
+            return dirs[0]
+        return os.pathsep.join(dirs)
+
+    @property
+    def user_cache_dir(self) -> str:
+        """
+        :return: cache directory tied to the user, e.g. ``~/.cache/$appname/$version`` or
+         ``~/$XDG_CACHE_HOME/$appname/$version``
+        """
+        path = os.environ.get("XDG_CACHE_HOME", "")
+        if not path.strip():
+            path = os.path.expanduser("~/.cache")  # noqa: PTH111
+        return self._append_app_name_and_version(path)
+
+    @property
+    def site_cache_dir(self) -> str:
+        """:return: cache directory shared by users, e.g. ``/var/cache/$appname/$version``"""
+        return self._append_app_name_and_version("/var/cache")
+
+    @property
+    def user_state_dir(self) -> str:
+        """
+        :return: state directory tied to the user, e.g. ``~/.local/state/$appname/$version`` or
+         ``$XDG_STATE_HOME/$appname/$version``
+        """
+        path = os.environ.get("XDG_STATE_HOME", "")
+        if not path.strip():
+            path = os.path.expanduser("~/.local/state")  # noqa: PTH111
+        return self._append_app_name_and_version(path)
+
+    @property
+    def user_log_dir(self) -> str:
+        """:return: log directory tied to the user, same as `user_state_dir` if not opinionated else ``log`` in it"""
+        path = self.user_state_dir
+        if self.opinion:
+            path = os.path.join(path, "log")  # noqa: PTH118
+            self._optionally_create_directory(path)
+        return path
+
+    @property
+    def user_documents_dir(self) -> str:
+        """:return: documents directory tied to the user, e.g. ``~/Documents``"""
+        return _get_user_media_dir("XDG_DOCUMENTS_DIR", "~/Documents")
+
+    @property
+    def user_downloads_dir(self) -> str:
+        """:return: downloads directory tied to the user, e.g. ``~/Downloads``"""
+        return _get_user_media_dir("XDG_DOWNLOAD_DIR", "~/Downloads")
+
+    @property
+    def user_pictures_dir(self) -> str:
+        """:return: pictures directory tied to the user, e.g. ``~/Pictures``"""
+        return _get_user_media_dir("XDG_PICTURES_DIR", "~/Pictures")
+
+    @property
+    def user_videos_dir(self) -> str:
+        """:return: videos directory tied to the user, e.g. ``~/Videos``"""
+        return _get_user_media_dir("XDG_VIDEOS_DIR", "~/Videos")
+
+    @property
+    def user_music_dir(self) -> str:
+        """:return: music directory tied to the user, e.g. ``~/Music``"""
+        return _get_user_media_dir("XDG_MUSIC_DIR", "~/Music")
+
+    @property
+    def user_desktop_dir(self) -> str:
+        """:return: desktop directory tied to the user, e.g. ``~/Desktop``"""
+        return _get_user_media_dir("XDG_DESKTOP_DIR", "~/Desktop")
+
+    @property
+    def user_runtime_dir(self) -> str:
+        """
+        :return: runtime directory tied to the user, e.g. ``/run/user/$(id -u)/$appname/$version`` or
+         ``$XDG_RUNTIME_DIR/$appname/$version``.
+
+         For FreeBSD/OpenBSD/NetBSD, it would return ``/var/run/user/$(id -u)/$appname/$version`` if
+         exists, otherwise ``/tmp/runtime-$(id -u)/$appname/$version``, if``$XDG_RUNTIME_DIR``
+         is not set.
+        """
+        path = os.environ.get("XDG_RUNTIME_DIR", "")
+        if not path.strip():
+            if sys.platform.startswith(("freebsd", "openbsd", "netbsd")):
+                path = f"/var/run/user/{getuid()}"
+                if not Path(path).exists():
+                    path = f"/tmp/runtime-{getuid()}"  # noqa: S108
+            else:
+                path = f"/run/user/{getuid()}"
+        return self._append_app_name_and_version(path)
+
+    @property
+    def site_runtime_dir(self) -> str:
+        """
+        :return: runtime directory shared by users, e.g. ``/run/$appname/$version`` or \
+        ``$XDG_RUNTIME_DIR/$appname/$version``.
+
+        Note that this behaves almost exactly like `user_runtime_dir` if ``$XDG_RUNTIME_DIR`` is set, but will
+        fall back to paths associated to the root user instead of a regular logged-in user if it's not set.
+
+        If you wish to ensure that a logged-in root user path is returned e.g. ``/run/user/0``, use `user_runtime_dir`
+        instead.
+
+        For FreeBSD/OpenBSD/NetBSD, it would return ``/var/run/$appname/$version`` if ``$XDG_RUNTIME_DIR`` is not set.
+        """
+        path = os.environ.get("XDG_RUNTIME_DIR", "")
+        if not path.strip():
+            if sys.platform.startswith(("freebsd", "openbsd", "netbsd")):
+                path = "/var/run"
+            else:
+                path = "/run"
+        return self._append_app_name_and_version(path)
+
+    @property
+    def site_data_path(self) -> Path:
+        """:return: data path shared by users. Only return the first item, even if ``multipath`` is set to ``True``"""
+        return self._first_item_as_path_if_multipath(self.site_data_dir)
+
+    @property
+    def site_config_path(self) -> Path:
+        """:return: config path shared by the users, returns the first item, even if ``multipath`` is set to ``True``"""
+        return self._first_item_as_path_if_multipath(self.site_config_dir)
+
+    @property
+    def site_cache_path(self) -> Path:
+        """:return: cache path shared by users. Only return the first item, even if ``multipath`` is set to ``True``"""
+        return self._first_item_as_path_if_multipath(self.site_cache_dir)
+
+    def _first_item_as_path_if_multipath(self, directory: str) -> Path:
+        if self.multipath:
+            # If multipath is True, the first path is returned.
+            directory = directory.split(os.pathsep)[0]
+        return Path(directory)
+
+    def iter_config_dirs(self) -> Iterator[str]:
+        """:yield: all user and site configuration directories."""
+        yield self.user_config_dir
+        yield from self._site_config_dirs
+
+    def iter_data_dirs(self) -> Iterator[str]:
+        """:yield: all user and site data directories."""
+        yield self.user_data_dir
+        yield from self._site_data_dirs
+
+
+def _get_user_media_dir(env_var: str, fallback_tilde_path: str) -> str:
+    media_dir = _get_user_dirs_folder(env_var)
+    if media_dir is None:
+        media_dir = os.environ.get(env_var, "").strip()
+        if not media_dir:
+            media_dir = os.path.expanduser(fallback_tilde_path)  # noqa: PTH111
+
+    return media_dir
+
+
+def _get_user_dirs_folder(key: str) -> str | None:
+    """
+    Return directory from user-dirs.dirs config file.
+
+    See https://freedesktop.org/wiki/Software/xdg-user-dirs/.
+
+    """
+    user_dirs_config_path = Path(Unix().user_config_dir) / "user-dirs.dirs"
+    if user_dirs_config_path.exists():
+        parser = ConfigParser()
+
+        with user_dirs_config_path.open() as stream:
+            # Add fake section header, so ConfigParser doesn't complain
+            parser.read_string(f"[top]\n{stream.read()}")
+
+        if key not in parser["top"]:
+            return None
+
+        path = parser["top"][key].strip('"')
+        # Handle relative home paths
+        return path.replace("$HOME", os.path.expanduser("~"))  # noqa: PTH111
+
+    return None
+
+
+__all__ = [
+    "Unix",
+]
diff --git a/setuptools/_vendor/platformdirs/version.py b/setuptools/_vendor/platformdirs/version.py
new file mode 100644
index 0000000000..6483ddce0b
--- /dev/null
+++ b/setuptools/_vendor/platformdirs/version.py
@@ -0,0 +1,16 @@
+# file generated by setuptools_scm
+# don't change, don't track in version control
+TYPE_CHECKING = False
+if TYPE_CHECKING:
+    from typing import Tuple, Union
+    VERSION_TUPLE = Tuple[Union[int, str], ...]
+else:
+    VERSION_TUPLE = object
+
+version: str
+__version__: str
+__version_tuple__: VERSION_TUPLE
+version_tuple: VERSION_TUPLE
+
+__version__ = version = '4.2.2'
+__version_tuple__ = version_tuple = (4, 2, 2)
diff --git a/setuptools/_vendor/platformdirs/windows.py b/setuptools/_vendor/platformdirs/windows.py
new file mode 100644
index 0000000000..d7bc96091a
--- /dev/null
+++ b/setuptools/_vendor/platformdirs/windows.py
@@ -0,0 +1,272 @@
+"""Windows."""
+
+from __future__ import annotations
+
+import os
+import sys
+from functools import lru_cache
+from typing import TYPE_CHECKING
+
+from .api import PlatformDirsABC
+
+if TYPE_CHECKING:
+    from collections.abc import Callable
+
+
+class Windows(PlatformDirsABC):
+    """
+    `MSDN on where to store app data files `_.
+
+    Makes use of the `appname `, `appauthor
+    `, `version `, `roaming
+    `, `opinion `, `ensure_exists
+    `.
+
+    """
+
+    @property
+    def user_data_dir(self) -> str:
+        """
+        :return: data directory tied to the user, e.g.
+         ``%USERPROFILE%\\AppData\\Local\\$appauthor\\$appname`` (not roaming) or
+         ``%USERPROFILE%\\AppData\\Roaming\\$appauthor\\$appname`` (roaming)
+        """
+        const = "CSIDL_APPDATA" if self.roaming else "CSIDL_LOCAL_APPDATA"
+        path = os.path.normpath(get_win_folder(const))
+        return self._append_parts(path)
+
+    def _append_parts(self, path: str, *, opinion_value: str | None = None) -> str:
+        params = []
+        if self.appname:
+            if self.appauthor is not False:
+                author = self.appauthor or self.appname
+                params.append(author)
+            params.append(self.appname)
+            if opinion_value is not None and self.opinion:
+                params.append(opinion_value)
+            if self.version:
+                params.append(self.version)
+        path = os.path.join(path, *params)  # noqa: PTH118
+        self._optionally_create_directory(path)
+        return path
+
+    @property
+    def site_data_dir(self) -> str:
+        """:return: data directory shared by users, e.g. ``C:\\ProgramData\\$appauthor\\$appname``"""
+        path = os.path.normpath(get_win_folder("CSIDL_COMMON_APPDATA"))
+        return self._append_parts(path)
+
+    @property
+    def user_config_dir(self) -> str:
+        """:return: config directory tied to the user, same as `user_data_dir`"""
+        return self.user_data_dir
+
+    @property
+    def site_config_dir(self) -> str:
+        """:return: config directory shared by the users, same as `site_data_dir`"""
+        return self.site_data_dir
+
+    @property
+    def user_cache_dir(self) -> str:
+        """
+        :return: cache directory tied to the user (if opinionated with ``Cache`` folder within ``$appname``) e.g.
+         ``%USERPROFILE%\\AppData\\Local\\$appauthor\\$appname\\Cache\\$version``
+        """
+        path = os.path.normpath(get_win_folder("CSIDL_LOCAL_APPDATA"))
+        return self._append_parts(path, opinion_value="Cache")
+
+    @property
+    def site_cache_dir(self) -> str:
+        """:return: cache directory shared by users, e.g. ``C:\\ProgramData\\$appauthor\\$appname\\Cache\\$version``"""
+        path = os.path.normpath(get_win_folder("CSIDL_COMMON_APPDATA"))
+        return self._append_parts(path, opinion_value="Cache")
+
+    @property
+    def user_state_dir(self) -> str:
+        """:return: state directory tied to the user, same as `user_data_dir`"""
+        return self.user_data_dir
+
+    @property
+    def user_log_dir(self) -> str:
+        """:return: log directory tied to the user, same as `user_data_dir` if not opinionated else ``Logs`` in it"""
+        path = self.user_data_dir
+        if self.opinion:
+            path = os.path.join(path, "Logs")  # noqa: PTH118
+            self._optionally_create_directory(path)
+        return path
+
+    @property
+    def user_documents_dir(self) -> str:
+        """:return: documents directory tied to the user e.g. ``%USERPROFILE%\\Documents``"""
+        return os.path.normpath(get_win_folder("CSIDL_PERSONAL"))
+
+    @property
+    def user_downloads_dir(self) -> str:
+        """:return: downloads directory tied to the user e.g. ``%USERPROFILE%\\Downloads``"""
+        return os.path.normpath(get_win_folder("CSIDL_DOWNLOADS"))
+
+    @property
+    def user_pictures_dir(self) -> str:
+        """:return: pictures directory tied to the user e.g. ``%USERPROFILE%\\Pictures``"""
+        return os.path.normpath(get_win_folder("CSIDL_MYPICTURES"))
+
+    @property
+    def user_videos_dir(self) -> str:
+        """:return: videos directory tied to the user e.g. ``%USERPROFILE%\\Videos``"""
+        return os.path.normpath(get_win_folder("CSIDL_MYVIDEO"))
+
+    @property
+    def user_music_dir(self) -> str:
+        """:return: music directory tied to the user e.g. ``%USERPROFILE%\\Music``"""
+        return os.path.normpath(get_win_folder("CSIDL_MYMUSIC"))
+
+    @property
+    def user_desktop_dir(self) -> str:
+        """:return: desktop directory tied to the user, e.g. ``%USERPROFILE%\\Desktop``"""
+        return os.path.normpath(get_win_folder("CSIDL_DESKTOPDIRECTORY"))
+
+    @property
+    def user_runtime_dir(self) -> str:
+        """
+        :return: runtime directory tied to the user, e.g.
+         ``%USERPROFILE%\\AppData\\Local\\Temp\\$appauthor\\$appname``
+        """
+        path = os.path.normpath(os.path.join(get_win_folder("CSIDL_LOCAL_APPDATA"), "Temp"))  # noqa: PTH118
+        return self._append_parts(path)
+
+    @property
+    def site_runtime_dir(self) -> str:
+        """:return: runtime directory shared by users, same as `user_runtime_dir`"""
+        return self.user_runtime_dir
+
+
+def get_win_folder_from_env_vars(csidl_name: str) -> str:
+    """Get folder from environment variables."""
+    result = get_win_folder_if_csidl_name_not_env_var(csidl_name)
+    if result is not None:
+        return result
+
+    env_var_name = {
+        "CSIDL_APPDATA": "APPDATA",
+        "CSIDL_COMMON_APPDATA": "ALLUSERSPROFILE",
+        "CSIDL_LOCAL_APPDATA": "LOCALAPPDATA",
+    }.get(csidl_name)
+    if env_var_name is None:
+        msg = f"Unknown CSIDL name: {csidl_name}"
+        raise ValueError(msg)
+    result = os.environ.get(env_var_name)
+    if result is None:
+        msg = f"Unset environment variable: {env_var_name}"
+        raise ValueError(msg)
+    return result
+
+
+def get_win_folder_if_csidl_name_not_env_var(csidl_name: str) -> str | None:
+    """Get a folder for a CSIDL name that does not exist as an environment variable."""
+    if csidl_name == "CSIDL_PERSONAL":
+        return os.path.join(os.path.normpath(os.environ["USERPROFILE"]), "Documents")  # noqa: PTH118
+
+    if csidl_name == "CSIDL_DOWNLOADS":
+        return os.path.join(os.path.normpath(os.environ["USERPROFILE"]), "Downloads")  # noqa: PTH118
+
+    if csidl_name == "CSIDL_MYPICTURES":
+        return os.path.join(os.path.normpath(os.environ["USERPROFILE"]), "Pictures")  # noqa: PTH118
+
+    if csidl_name == "CSIDL_MYVIDEO":
+        return os.path.join(os.path.normpath(os.environ["USERPROFILE"]), "Videos")  # noqa: PTH118
+
+    if csidl_name == "CSIDL_MYMUSIC":
+        return os.path.join(os.path.normpath(os.environ["USERPROFILE"]), "Music")  # noqa: PTH118
+    return None
+
+
+def get_win_folder_from_registry(csidl_name: str) -> str:
+    """
+    Get folder from the registry.
+
+    This is a fallback technique at best. I'm not sure if using the registry for these guarantees us the correct answer
+    for all CSIDL_* names.
+
+    """
+    shell_folder_name = {
+        "CSIDL_APPDATA": "AppData",
+        "CSIDL_COMMON_APPDATA": "Common AppData",
+        "CSIDL_LOCAL_APPDATA": "Local AppData",
+        "CSIDL_PERSONAL": "Personal",
+        "CSIDL_DOWNLOADS": "{374DE290-123F-4565-9164-39C4925E467B}",
+        "CSIDL_MYPICTURES": "My Pictures",
+        "CSIDL_MYVIDEO": "My Video",
+        "CSIDL_MYMUSIC": "My Music",
+    }.get(csidl_name)
+    if shell_folder_name is None:
+        msg = f"Unknown CSIDL name: {csidl_name}"
+        raise ValueError(msg)
+    if sys.platform != "win32":  # only needed for mypy type checker to know that this code runs only on Windows
+        raise NotImplementedError
+    import winreg  # noqa: PLC0415
+
+    key = winreg.OpenKey(winreg.HKEY_CURRENT_USER, r"Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders")
+    directory, _ = winreg.QueryValueEx(key, shell_folder_name)
+    return str(directory)
+
+
+def get_win_folder_via_ctypes(csidl_name: str) -> str:
+    """Get folder with ctypes."""
+    # There is no 'CSIDL_DOWNLOADS'.
+    # Use 'CSIDL_PROFILE' (40) and append the default folder 'Downloads' instead.
+    # https://learn.microsoft.com/en-us/windows/win32/shell/knownfolderid
+
+    import ctypes  # noqa: PLC0415
+
+    csidl_const = {
+        "CSIDL_APPDATA": 26,
+        "CSIDL_COMMON_APPDATA": 35,
+        "CSIDL_LOCAL_APPDATA": 28,
+        "CSIDL_PERSONAL": 5,
+        "CSIDL_MYPICTURES": 39,
+        "CSIDL_MYVIDEO": 14,
+        "CSIDL_MYMUSIC": 13,
+        "CSIDL_DOWNLOADS": 40,
+        "CSIDL_DESKTOPDIRECTORY": 16,
+    }.get(csidl_name)
+    if csidl_const is None:
+        msg = f"Unknown CSIDL name: {csidl_name}"
+        raise ValueError(msg)
+
+    buf = ctypes.create_unicode_buffer(1024)
+    windll = getattr(ctypes, "windll")  # noqa: B009 # using getattr to avoid false positive with mypy type checker
+    windll.shell32.SHGetFolderPathW(None, csidl_const, None, 0, buf)
+
+    # Downgrade to short path name if it has high-bit chars.
+    if any(ord(c) > 255 for c in buf):  # noqa: PLR2004
+        buf2 = ctypes.create_unicode_buffer(1024)
+        if windll.kernel32.GetShortPathNameW(buf.value, buf2, 1024):
+            buf = buf2
+
+    if csidl_name == "CSIDL_DOWNLOADS":
+        return os.path.join(buf.value, "Downloads")  # noqa: PTH118
+
+    return buf.value
+
+
+def _pick_get_win_folder() -> Callable[[str], str]:
+    try:
+        import ctypes  # noqa: PLC0415
+    except ImportError:
+        pass
+    else:
+        if hasattr(ctypes, "windll"):
+            return get_win_folder_via_ctypes
+    try:
+        import winreg  # noqa: PLC0415, F401
+    except ImportError:
+        return get_win_folder_from_env_vars
+    else:
+        return get_win_folder_from_registry
+
+
+get_win_folder = lru_cache(maxsize=None)(_pick_get_win_folder())
+
+__all__ = [
+    "Windows",
+]
diff --git a/setuptools/_vendor/ruff.toml b/setuptools/_vendor/ruff.toml
new file mode 100644
index 0000000000..00fee625a5
--- /dev/null
+++ b/setuptools/_vendor/ruff.toml
@@ -0,0 +1 @@
+exclude = ["*"]
diff --git a/setuptools/_vendor/tomli-2.0.1.dist-info/INSTALLER b/setuptools/_vendor/tomli-2.0.1.dist-info/INSTALLER
new file mode 100644
index 0000000000..a1b589e38a
--- /dev/null
+++ b/setuptools/_vendor/tomli-2.0.1.dist-info/INSTALLER
@@ -0,0 +1 @@
+pip
diff --git a/setuptools/_vendor/tomli-2.0.1.dist-info/LICENSE b/setuptools/_vendor/tomli-2.0.1.dist-info/LICENSE
new file mode 100644
index 0000000000..e859590f88
--- /dev/null
+++ b/setuptools/_vendor/tomli-2.0.1.dist-info/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2021 Taneli Hukkinen
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/setuptools/_vendor/tomli-2.0.1.dist-info/METADATA b/setuptools/_vendor/tomli-2.0.1.dist-info/METADATA
new file mode 100644
index 0000000000..efd87ecc16
--- /dev/null
+++ b/setuptools/_vendor/tomli-2.0.1.dist-info/METADATA
@@ -0,0 +1,206 @@
+Metadata-Version: 2.1
+Name: tomli
+Version: 2.0.1
+Summary: A lil' TOML parser
+Keywords: toml
+Author-email: Taneli Hukkinen 
+Requires-Python: >=3.7
+Description-Content-Type: text/markdown
+Classifier: License :: OSI Approved :: MIT License
+Classifier: Operating System :: MacOS
+Classifier: Operating System :: Microsoft :: Windows
+Classifier: Operating System :: POSIX :: Linux
+Classifier: Programming Language :: Python :: 3 :: Only
+Classifier: Programming Language :: Python :: 3.7
+Classifier: Programming Language :: Python :: 3.8
+Classifier: Programming Language :: Python :: 3.9
+Classifier: Programming Language :: Python :: 3.10
+Classifier: Programming Language :: Python :: Implementation :: CPython
+Classifier: Programming Language :: Python :: Implementation :: PyPy
+Classifier: Topic :: Software Development :: Libraries :: Python Modules
+Classifier: Typing :: Typed
+Project-URL: Changelog, https://github.com/hukkin/tomli/blob/master/CHANGELOG.md
+Project-URL: Homepage, https://github.com/hukkin/tomli
+
+[![Build Status](https://github.com/hukkin/tomli/workflows/Tests/badge.svg?branch=master)](https://github.com/hukkin/tomli/actions?query=workflow%3ATests+branch%3Amaster+event%3Apush)
+[![codecov.io](https://codecov.io/gh/hukkin/tomli/branch/master/graph/badge.svg)](https://codecov.io/gh/hukkin/tomli)
+[![PyPI version](https://img.shields.io/pypi/v/tomli)](https://pypi.org/project/tomli)
+
+# Tomli
+
+> A lil' TOML parser
+
+**Table of Contents**  *generated with [mdformat-toc](https://github.com/hukkin/mdformat-toc)*
+
+
+
+- [Intro](#intro)
+- [Installation](#installation)
+- [Usage](#usage)
+  - [Parse a TOML string](#parse-a-toml-string)
+  - [Parse a TOML file](#parse-a-toml-file)
+  - [Handle invalid TOML](#handle-invalid-toml)
+  - [Construct `decimal.Decimal`s from TOML floats](#construct-decimaldecimals-from-toml-floats)
+- [FAQ](#faq)
+  - [Why this parser?](#why-this-parser)
+  - [Is comment preserving round-trip parsing supported?](#is-comment-preserving-round-trip-parsing-supported)
+  - [Is there a `dumps`, `write` or `encode` function?](#is-there-a-dumps-write-or-encode-function)
+  - [How do TOML types map into Python types?](#how-do-toml-types-map-into-python-types)
+- [Performance](#performance)
+
+
+
+## Intro
+
+Tomli is a Python library for parsing [TOML](https://toml.io).
+Tomli is fully compatible with [TOML v1.0.0](https://toml.io/en/v1.0.0).
+
+## Installation
+
+```bash
+pip install tomli
+```
+
+## Usage
+
+### Parse a TOML string
+
+```python
+import tomli
+
+toml_str = """
+           gretzky = 99
+
+           [kurri]
+           jari = 17
+           """
+
+toml_dict = tomli.loads(toml_str)
+assert toml_dict == {"gretzky": 99, "kurri": {"jari": 17}}
+```
+
+### Parse a TOML file
+
+```python
+import tomli
+
+with open("path_to_file/conf.toml", "rb") as f:
+    toml_dict = tomli.load(f)
+```
+
+The file must be opened in binary mode (with the `"rb"` flag).
+Binary mode will enforce decoding the file as UTF-8 with universal newlines disabled,
+both of which are required to correctly parse TOML.
+
+### Handle invalid TOML
+
+```python
+import tomli
+
+try:
+    toml_dict = tomli.loads("]] this is invalid TOML [[")
+except tomli.TOMLDecodeError:
+    print("Yep, definitely not valid.")
+```
+
+Note that error messages are considered informational only.
+They should not be assumed to stay constant across Tomli versions.
+
+### Construct `decimal.Decimal`s from TOML floats
+
+```python
+from decimal import Decimal
+import tomli
+
+toml_dict = tomli.loads("precision-matters = 0.982492", parse_float=Decimal)
+assert toml_dict["precision-matters"] == Decimal("0.982492")
+```
+
+Note that `decimal.Decimal` can be replaced with another callable that converts a TOML float from string to a Python type.
+The `decimal.Decimal` is, however, a practical choice for use cases where float inaccuracies can not be tolerated.
+
+Illegal types are `dict` and `list`, and their subtypes.
+A `ValueError` will be raised if `parse_float` produces illegal types.
+
+## FAQ
+
+### Why this parser?
+
+- it's lil'
+- pure Python with zero dependencies
+- the fastest pure Python parser [\*](#performance):
+  15x as fast as [tomlkit](https://pypi.org/project/tomlkit/),
+  2.4x as fast as [toml](https://pypi.org/project/toml/)
+- outputs [basic data types](#how-do-toml-types-map-into-python-types) only
+- 100% spec compliant: passes all tests in
+  [a test set](https://github.com/toml-lang/compliance/pull/8)
+  soon to be merged to the official
+  [compliance tests for TOML](https://github.com/toml-lang/compliance)
+  repository
+- thoroughly tested: 100% branch coverage
+
+### Is comment preserving round-trip parsing supported?
+
+No.
+
+The `tomli.loads` function returns a plain `dict` that is populated with builtin types and types from the standard library only.
+Preserving comments requires a custom type to be returned so will not be supported,
+at least not by the `tomli.loads` and `tomli.load` functions.
+
+Look into [TOML Kit](https://github.com/sdispater/tomlkit) if preservation of style is what you need.
+
+### Is there a `dumps`, `write` or `encode` function?
+
+[Tomli-W](https://github.com/hukkin/tomli-w) is the write-only counterpart of Tomli, providing `dump` and `dumps` functions.
+
+The core library does not include write capability, as most TOML use cases are read-only, and Tomli intends to be minimal.
+
+### How do TOML types map into Python types?
+
+| TOML type        | Python type         | Details                                                      |
+| ---------------- | ------------------- | ------------------------------------------------------------ |
+| Document Root    | `dict`              |                                                              |
+| Key              | `str`               |                                                              |
+| String           | `str`               |                                                              |
+| Integer          | `int`               |                                                              |
+| Float            | `float`             |                                                              |
+| Boolean          | `bool`              |                                                              |
+| Offset Date-Time | `datetime.datetime` | `tzinfo` attribute set to an instance of `datetime.timezone` |
+| Local Date-Time  | `datetime.datetime` | `tzinfo` attribute set to `None`                             |
+| Local Date       | `datetime.date`     |                                                              |
+| Local Time       | `datetime.time`     |                                                              |
+| Array            | `list`              |                                                              |
+| Table            | `dict`              |                                                              |
+| Inline Table     | `dict`              |                                                              |
+
+## Performance
+
+The `benchmark/` folder in this repository contains a performance benchmark for comparing the various Python TOML parsers.
+The benchmark can be run with `tox -e benchmark-pypi`.
+Running the benchmark on my personal computer output the following:
+
+```console
+foo@bar:~/dev/tomli$ tox -e benchmark-pypi
+benchmark-pypi installed: attrs==19.3.0,click==7.1.2,pytomlpp==1.0.2,qtoml==0.3.0,rtoml==0.7.0,toml==0.10.2,tomli==1.1.0,tomlkit==0.7.2
+benchmark-pypi run-test-pre: PYTHONHASHSEED='2658546909'
+benchmark-pypi run-test: commands[0] | python -c 'import datetime; print(datetime.date.today())'
+2021-07-23
+benchmark-pypi run-test: commands[1] | python --version
+Python 3.8.10
+benchmark-pypi run-test: commands[2] | python benchmark/run.py
+Parsing data.toml 5000 times:
+------------------------------------------------------
+    parser |  exec time | performance (more is better)
+-----------+------------+-----------------------------
+     rtoml |    0.901 s | baseline (100%)
+  pytomlpp |     1.08 s | 83.15%
+     tomli |     3.89 s | 23.15%
+      toml |     9.36 s | 9.63%
+     qtoml |     11.5 s | 7.82%
+   tomlkit |     56.8 s | 1.59%
+```
+
+The parsers are ordered from fastest to slowest, using the fastest parser as baseline.
+Tomli performed the best out of all pure Python TOML parsers,
+losing only to pytomlpp (wraps C++) and rtoml (wraps Rust).
+
diff --git a/setuptools/_vendor/tomli-2.0.1.dist-info/RECORD b/setuptools/_vendor/tomli-2.0.1.dist-info/RECORD
new file mode 100644
index 0000000000..1db8063ec5
--- /dev/null
+++ b/setuptools/_vendor/tomli-2.0.1.dist-info/RECORD
@@ -0,0 +1,15 @@
+tomli-2.0.1.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4
+tomli-2.0.1.dist-info/LICENSE,sha256=uAgWsNUwuKzLTCIReDeQmEpuO2GSLCte6S8zcqsnQv4,1072
+tomli-2.0.1.dist-info/METADATA,sha256=zPDceKmPwJGLWtZykrHixL7WVXWmJGzZ1jyRT5lCoPI,8875
+tomli-2.0.1.dist-info/RECORD,,
+tomli-2.0.1.dist-info/REQUESTED,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0
+tomli-2.0.1.dist-info/WHEEL,sha256=jPMR_Dzkc4X4icQtmz81lnNY_kAsfog7ry7qoRvYLXw,81
+tomli/__init__.py,sha256=JhUwV66DB1g4Hvt1UQCVMdfCu-IgAV8FXmvDU9onxd4,396
+tomli/__pycache__/__init__.cpython-312.pyc,,
+tomli/__pycache__/_parser.cpython-312.pyc,,
+tomli/__pycache__/_re.cpython-312.pyc,,
+tomli/__pycache__/_types.cpython-312.pyc,,
+tomli/_parser.py,sha256=g9-ENaALS-B8dokYpCuzUFalWlog7T-SIYMjLZSWrtM,22633
+tomli/_re.py,sha256=dbjg5ChZT23Ka9z9DHOXfdtSpPwUfdgMXnj8NOoly-w,2943
+tomli/_types.py,sha256=-GTG2VUqkpxwMqzmVO4F7ybKddIbAnuAHXfmWQcTi3Q,254
+tomli/py.typed,sha256=8PjyZ1aVoQpRVvt71muvuq5qE-jTFZkK-GLHkhdebmc,26
diff --git a/setuptools/_vendor/tomli-2.0.1.dist-info/REQUESTED b/setuptools/_vendor/tomli-2.0.1.dist-info/REQUESTED
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/setuptools/_vendor/tomli-2.0.1.dist-info/WHEEL b/setuptools/_vendor/tomli-2.0.1.dist-info/WHEEL
new file mode 100644
index 0000000000..c727d14823
--- /dev/null
+++ b/setuptools/_vendor/tomli-2.0.1.dist-info/WHEEL
@@ -0,0 +1,4 @@
+Wheel-Version: 1.0
+Generator: flit 3.6.0
+Root-Is-Purelib: true
+Tag: py3-none-any
diff --git a/setuptools/_vendor/tomli/__init__.py b/setuptools/_vendor/tomli/__init__.py
new file mode 100644
index 0000000000..4c6ec97ec6
--- /dev/null
+++ b/setuptools/_vendor/tomli/__init__.py
@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: MIT
+# SPDX-FileCopyrightText: 2021 Taneli Hukkinen
+# Licensed to PSF under a Contributor Agreement.
+
+__all__ = ("loads", "load", "TOMLDecodeError")
+__version__ = "2.0.1"  # DO NOT EDIT THIS LINE MANUALLY. LET bump2version UTILITY DO IT
+
+from ._parser import TOMLDecodeError, load, loads
+
+# Pretend this exception was created here.
+TOMLDecodeError.__module__ = __name__
diff --git a/setuptools/_vendor/tomli/_parser.py b/setuptools/_vendor/tomli/_parser.py
new file mode 100644
index 0000000000..f1bb0aa19a
--- /dev/null
+++ b/setuptools/_vendor/tomli/_parser.py
@@ -0,0 +1,691 @@
+# SPDX-License-Identifier: MIT
+# SPDX-FileCopyrightText: 2021 Taneli Hukkinen
+# Licensed to PSF under a Contributor Agreement.
+
+from __future__ import annotations
+
+from collections.abc import Iterable
+import string
+from types import MappingProxyType
+from typing import Any, BinaryIO, NamedTuple
+
+from ._re import (
+    RE_DATETIME,
+    RE_LOCALTIME,
+    RE_NUMBER,
+    match_to_datetime,
+    match_to_localtime,
+    match_to_number,
+)
+from ._types import Key, ParseFloat, Pos
+
+ASCII_CTRL = frozenset(chr(i) for i in range(32)) | frozenset(chr(127))
+
+# Neither of these sets include quotation mark or backslash. They are
+# currently handled as separate cases in the parser functions.
+ILLEGAL_BASIC_STR_CHARS = ASCII_CTRL - frozenset("\t")
+ILLEGAL_MULTILINE_BASIC_STR_CHARS = ASCII_CTRL - frozenset("\t\n")
+
+ILLEGAL_LITERAL_STR_CHARS = ILLEGAL_BASIC_STR_CHARS
+ILLEGAL_MULTILINE_LITERAL_STR_CHARS = ILLEGAL_MULTILINE_BASIC_STR_CHARS
+
+ILLEGAL_COMMENT_CHARS = ILLEGAL_BASIC_STR_CHARS
+
+TOML_WS = frozenset(" \t")
+TOML_WS_AND_NEWLINE = TOML_WS | frozenset("\n")
+BARE_KEY_CHARS = frozenset(string.ascii_letters + string.digits + "-_")
+KEY_INITIAL_CHARS = BARE_KEY_CHARS | frozenset("\"'")
+HEXDIGIT_CHARS = frozenset(string.hexdigits)
+
+BASIC_STR_ESCAPE_REPLACEMENTS = MappingProxyType(
+    {
+        "\\b": "\u0008",  # backspace
+        "\\t": "\u0009",  # tab
+        "\\n": "\u000A",  # linefeed
+        "\\f": "\u000C",  # form feed
+        "\\r": "\u000D",  # carriage return
+        '\\"': "\u0022",  # quote
+        "\\\\": "\u005C",  # backslash
+    }
+)
+
+
+class TOMLDecodeError(ValueError):
+    """An error raised if a document is not valid TOML."""
+
+
+def load(__fp: BinaryIO, *, parse_float: ParseFloat = float) -> dict[str, Any]:
+    """Parse TOML from a binary file object."""
+    b = __fp.read()
+    try:
+        s = b.decode()
+    except AttributeError:
+        raise TypeError(
+            "File must be opened in binary mode, e.g. use `open('foo.toml', 'rb')`"
+        ) from None
+    return loads(s, parse_float=parse_float)
+
+
+def loads(__s: str, *, parse_float: ParseFloat = float) -> dict[str, Any]:  # noqa: C901
+    """Parse TOML from a string."""
+
+    # The spec allows converting "\r\n" to "\n", even in string
+    # literals. Let's do so to simplify parsing.
+    src = __s.replace("\r\n", "\n")
+    pos = 0
+    out = Output(NestedDict(), Flags())
+    header: Key = ()
+    parse_float = make_safe_parse_float(parse_float)
+
+    # Parse one statement at a time
+    # (typically means one line in TOML source)
+    while True:
+        # 1. Skip line leading whitespace
+        pos = skip_chars(src, pos, TOML_WS)
+
+        # 2. Parse rules. Expect one of the following:
+        #    - end of file
+        #    - end of line
+        #    - comment
+        #    - key/value pair
+        #    - append dict to list (and move to its namespace)
+        #    - create dict (and move to its namespace)
+        # Skip trailing whitespace when applicable.
+        try:
+            char = src[pos]
+        except IndexError:
+            break
+        if char == "\n":
+            pos += 1
+            continue
+        if char in KEY_INITIAL_CHARS:
+            pos = key_value_rule(src, pos, out, header, parse_float)
+            pos = skip_chars(src, pos, TOML_WS)
+        elif char == "[":
+            try:
+                second_char: str | None = src[pos + 1]
+            except IndexError:
+                second_char = None
+            out.flags.finalize_pending()
+            if second_char == "[":
+                pos, header = create_list_rule(src, pos, out)
+            else:
+                pos, header = create_dict_rule(src, pos, out)
+            pos = skip_chars(src, pos, TOML_WS)
+        elif char != "#":
+            raise suffixed_err(src, pos, "Invalid statement")
+
+        # 3. Skip comment
+        pos = skip_comment(src, pos)
+
+        # 4. Expect end of line or end of file
+        try:
+            char = src[pos]
+        except IndexError:
+            break
+        if char != "\n":
+            raise suffixed_err(
+                src, pos, "Expected newline or end of document after a statement"
+            )
+        pos += 1
+
+    return out.data.dict
+
+
+class Flags:
+    """Flags that map to parsed keys/namespaces."""
+
+    # Marks an immutable namespace (inline array or inline table).
+    FROZEN = 0
+    # Marks a nest that has been explicitly created and can no longer
+    # be opened using the "[table]" syntax.
+    EXPLICIT_NEST = 1
+
+    def __init__(self) -> None:
+        self._flags: dict[str, dict] = {}
+        self._pending_flags: set[tuple[Key, int]] = set()
+
+    def add_pending(self, key: Key, flag: int) -> None:
+        self._pending_flags.add((key, flag))
+
+    def finalize_pending(self) -> None:
+        for key, flag in self._pending_flags:
+            self.set(key, flag, recursive=False)
+        self._pending_flags.clear()
+
+    def unset_all(self, key: Key) -> None:
+        cont = self._flags
+        for k in key[:-1]:
+            if k not in cont:
+                return
+            cont = cont[k]["nested"]
+        cont.pop(key[-1], None)
+
+    def set(self, key: Key, flag: int, *, recursive: bool) -> None:  # noqa: A003
+        cont = self._flags
+        key_parent, key_stem = key[:-1], key[-1]
+        for k in key_parent:
+            if k not in cont:
+                cont[k] = {"flags": set(), "recursive_flags": set(), "nested": {}}
+            cont = cont[k]["nested"]
+        if key_stem not in cont:
+            cont[key_stem] = {"flags": set(), "recursive_flags": set(), "nested": {}}
+        cont[key_stem]["recursive_flags" if recursive else "flags"].add(flag)
+
+    def is_(self, key: Key, flag: int) -> bool:
+        if not key:
+            return False  # document root has no flags
+        cont = self._flags
+        for k in key[:-1]:
+            if k not in cont:
+                return False
+            inner_cont = cont[k]
+            if flag in inner_cont["recursive_flags"]:
+                return True
+            cont = inner_cont["nested"]
+        key_stem = key[-1]
+        if key_stem in cont:
+            cont = cont[key_stem]
+            return flag in cont["flags"] or flag in cont["recursive_flags"]
+        return False
+
+
+class NestedDict:
+    def __init__(self) -> None:
+        # The parsed content of the TOML document
+        self.dict: dict[str, Any] = {}
+
+    def get_or_create_nest(
+        self,
+        key: Key,
+        *,
+        access_lists: bool = True,
+    ) -> dict:
+        cont: Any = self.dict
+        for k in key:
+            if k not in cont:
+                cont[k] = {}
+            cont = cont[k]
+            if access_lists and isinstance(cont, list):
+                cont = cont[-1]
+            if not isinstance(cont, dict):
+                raise KeyError("There is no nest behind this key")
+        return cont
+
+    def append_nest_to_list(self, key: Key) -> None:
+        cont = self.get_or_create_nest(key[:-1])
+        last_key = key[-1]
+        if last_key in cont:
+            list_ = cont[last_key]
+            if not isinstance(list_, list):
+                raise KeyError("An object other than list found behind this key")
+            list_.append({})
+        else:
+            cont[last_key] = [{}]
+
+
+class Output(NamedTuple):
+    data: NestedDict
+    flags: Flags
+
+
+def skip_chars(src: str, pos: Pos, chars: Iterable[str]) -> Pos:
+    try:
+        while src[pos] in chars:
+            pos += 1
+    except IndexError:
+        pass
+    return pos
+
+
+def skip_until(
+    src: str,
+    pos: Pos,
+    expect: str,
+    *,
+    error_on: frozenset[str],
+    error_on_eof: bool,
+) -> Pos:
+    try:
+        new_pos = src.index(expect, pos)
+    except ValueError:
+        new_pos = len(src)
+        if error_on_eof:
+            raise suffixed_err(src, new_pos, f"Expected {expect!r}") from None
+
+    if not error_on.isdisjoint(src[pos:new_pos]):
+        while src[pos] not in error_on:
+            pos += 1
+        raise suffixed_err(src, pos, f"Found invalid character {src[pos]!r}")
+    return new_pos
+
+
+def skip_comment(src: str, pos: Pos) -> Pos:
+    try:
+        char: str | None = src[pos]
+    except IndexError:
+        char = None
+    if char == "#":
+        return skip_until(
+            src, pos + 1, "\n", error_on=ILLEGAL_COMMENT_CHARS, error_on_eof=False
+        )
+    return pos
+
+
+def skip_comments_and_array_ws(src: str, pos: Pos) -> Pos:
+    while True:
+        pos_before_skip = pos
+        pos = skip_chars(src, pos, TOML_WS_AND_NEWLINE)
+        pos = skip_comment(src, pos)
+        if pos == pos_before_skip:
+            return pos
+
+
+def create_dict_rule(src: str, pos: Pos, out: Output) -> tuple[Pos, Key]:
+    pos += 1  # Skip "["
+    pos = skip_chars(src, pos, TOML_WS)
+    pos, key = parse_key(src, pos)
+
+    if out.flags.is_(key, Flags.EXPLICIT_NEST) or out.flags.is_(key, Flags.FROZEN):
+        raise suffixed_err(src, pos, f"Cannot declare {key} twice")
+    out.flags.set(key, Flags.EXPLICIT_NEST, recursive=False)
+    try:
+        out.data.get_or_create_nest(key)
+    except KeyError:
+        raise suffixed_err(src, pos, "Cannot overwrite a value") from None
+
+    if not src.startswith("]", pos):
+        raise suffixed_err(src, pos, "Expected ']' at the end of a table declaration")
+    return pos + 1, key
+
+
+def create_list_rule(src: str, pos: Pos, out: Output) -> tuple[Pos, Key]:
+    pos += 2  # Skip "[["
+    pos = skip_chars(src, pos, TOML_WS)
+    pos, key = parse_key(src, pos)
+
+    if out.flags.is_(key, Flags.FROZEN):
+        raise suffixed_err(src, pos, f"Cannot mutate immutable namespace {key}")
+    # Free the namespace now that it points to another empty list item...
+    out.flags.unset_all(key)
+    # ...but this key precisely is still prohibited from table declaration
+    out.flags.set(key, Flags.EXPLICIT_NEST, recursive=False)
+    try:
+        out.data.append_nest_to_list(key)
+    except KeyError:
+        raise suffixed_err(src, pos, "Cannot overwrite a value") from None
+
+    if not src.startswith("]]", pos):
+        raise suffixed_err(src, pos, "Expected ']]' at the end of an array declaration")
+    return pos + 2, key
+
+
+def key_value_rule(
+    src: str, pos: Pos, out: Output, header: Key, parse_float: ParseFloat
+) -> Pos:
+    pos, key, value = parse_key_value_pair(src, pos, parse_float)
+    key_parent, key_stem = key[:-1], key[-1]
+    abs_key_parent = header + key_parent
+
+    relative_path_cont_keys = (header + key[:i] for i in range(1, len(key)))
+    for cont_key in relative_path_cont_keys:
+        # Check that dotted key syntax does not redefine an existing table
+        if out.flags.is_(cont_key, Flags.EXPLICIT_NEST):
+            raise suffixed_err(src, pos, f"Cannot redefine namespace {cont_key}")
+        # Containers in the relative path can't be opened with the table syntax or
+        # dotted key/value syntax in following table sections.
+        out.flags.add_pending(cont_key, Flags.EXPLICIT_NEST)
+
+    if out.flags.is_(abs_key_parent, Flags.FROZEN):
+        raise suffixed_err(
+            src, pos, f"Cannot mutate immutable namespace {abs_key_parent}"
+        )
+
+    try:
+        nest = out.data.get_or_create_nest(abs_key_parent)
+    except KeyError:
+        raise suffixed_err(src, pos, "Cannot overwrite a value") from None
+    if key_stem in nest:
+        raise suffixed_err(src, pos, "Cannot overwrite a value")
+    # Mark inline table and array namespaces recursively immutable
+    if isinstance(value, (dict, list)):
+        out.flags.set(header + key, Flags.FROZEN, recursive=True)
+    nest[key_stem] = value
+    return pos
+
+
+def parse_key_value_pair(
+    src: str, pos: Pos, parse_float: ParseFloat
+) -> tuple[Pos, Key, Any]:
+    pos, key = parse_key(src, pos)
+    try:
+        char: str | None = src[pos]
+    except IndexError:
+        char = None
+    if char != "=":
+        raise suffixed_err(src, pos, "Expected '=' after a key in a key/value pair")
+    pos += 1
+    pos = skip_chars(src, pos, TOML_WS)
+    pos, value = parse_value(src, pos, parse_float)
+    return pos, key, value
+
+
+def parse_key(src: str, pos: Pos) -> tuple[Pos, Key]:
+    pos, key_part = parse_key_part(src, pos)
+    key: Key = (key_part,)
+    pos = skip_chars(src, pos, TOML_WS)
+    while True:
+        try:
+            char: str | None = src[pos]
+        except IndexError:
+            char = None
+        if char != ".":
+            return pos, key
+        pos += 1
+        pos = skip_chars(src, pos, TOML_WS)
+        pos, key_part = parse_key_part(src, pos)
+        key += (key_part,)
+        pos = skip_chars(src, pos, TOML_WS)
+
+
+def parse_key_part(src: str, pos: Pos) -> tuple[Pos, str]:
+    try:
+        char: str | None = src[pos]
+    except IndexError:
+        char = None
+    if char in BARE_KEY_CHARS:
+        start_pos = pos
+        pos = skip_chars(src, pos, BARE_KEY_CHARS)
+        return pos, src[start_pos:pos]
+    if char == "'":
+        return parse_literal_str(src, pos)
+    if char == '"':
+        return parse_one_line_basic_str(src, pos)
+    raise suffixed_err(src, pos, "Invalid initial character for a key part")
+
+
+def parse_one_line_basic_str(src: str, pos: Pos) -> tuple[Pos, str]:
+    pos += 1
+    return parse_basic_str(src, pos, multiline=False)
+
+
+def parse_array(src: str, pos: Pos, parse_float: ParseFloat) -> tuple[Pos, list]:
+    pos += 1
+    array: list = []
+
+    pos = skip_comments_and_array_ws(src, pos)
+    if src.startswith("]", pos):
+        return pos + 1, array
+    while True:
+        pos, val = parse_value(src, pos, parse_float)
+        array.append(val)
+        pos = skip_comments_and_array_ws(src, pos)
+
+        c = src[pos : pos + 1]
+        if c == "]":
+            return pos + 1, array
+        if c != ",":
+            raise suffixed_err(src, pos, "Unclosed array")
+        pos += 1
+
+        pos = skip_comments_and_array_ws(src, pos)
+        if src.startswith("]", pos):
+            return pos + 1, array
+
+
+def parse_inline_table(src: str, pos: Pos, parse_float: ParseFloat) -> tuple[Pos, dict]:
+    pos += 1
+    nested_dict = NestedDict()
+    flags = Flags()
+
+    pos = skip_chars(src, pos, TOML_WS)
+    if src.startswith("}", pos):
+        return pos + 1, nested_dict.dict
+    while True:
+        pos, key, value = parse_key_value_pair(src, pos, parse_float)
+        key_parent, key_stem = key[:-1], key[-1]
+        if flags.is_(key, Flags.FROZEN):
+            raise suffixed_err(src, pos, f"Cannot mutate immutable namespace {key}")
+        try:
+            nest = nested_dict.get_or_create_nest(key_parent, access_lists=False)
+        except KeyError:
+            raise suffixed_err(src, pos, "Cannot overwrite a value") from None
+        if key_stem in nest:
+            raise suffixed_err(src, pos, f"Duplicate inline table key {key_stem!r}")
+        nest[key_stem] = value
+        pos = skip_chars(src, pos, TOML_WS)
+        c = src[pos : pos + 1]
+        if c == "}":
+            return pos + 1, nested_dict.dict
+        if c != ",":
+            raise suffixed_err(src, pos, "Unclosed inline table")
+        if isinstance(value, (dict, list)):
+            flags.set(key, Flags.FROZEN, recursive=True)
+        pos += 1
+        pos = skip_chars(src, pos, TOML_WS)
+
+
+def parse_basic_str_escape(
+    src: str, pos: Pos, *, multiline: bool = False
+) -> tuple[Pos, str]:
+    escape_id = src[pos : pos + 2]
+    pos += 2
+    if multiline and escape_id in {"\\ ", "\\\t", "\\\n"}:
+        # Skip whitespace until next non-whitespace character or end of
+        # the doc. Error if non-whitespace is found before newline.
+        if escape_id != "\\\n":
+            pos = skip_chars(src, pos, TOML_WS)
+            try:
+                char = src[pos]
+            except IndexError:
+                return pos, ""
+            if char != "\n":
+                raise suffixed_err(src, pos, "Unescaped '\\' in a string")
+            pos += 1
+        pos = skip_chars(src, pos, TOML_WS_AND_NEWLINE)
+        return pos, ""
+    if escape_id == "\\u":
+        return parse_hex_char(src, pos, 4)
+    if escape_id == "\\U":
+        return parse_hex_char(src, pos, 8)
+    try:
+        return pos, BASIC_STR_ESCAPE_REPLACEMENTS[escape_id]
+    except KeyError:
+        raise suffixed_err(src, pos, "Unescaped '\\' in a string") from None
+
+
+def parse_basic_str_escape_multiline(src: str, pos: Pos) -> tuple[Pos, str]:
+    return parse_basic_str_escape(src, pos, multiline=True)
+
+
+def parse_hex_char(src: str, pos: Pos, hex_len: int) -> tuple[Pos, str]:
+    hex_str = src[pos : pos + hex_len]
+    if len(hex_str) != hex_len or not HEXDIGIT_CHARS.issuperset(hex_str):
+        raise suffixed_err(src, pos, "Invalid hex value")
+    pos += hex_len
+    hex_int = int(hex_str, 16)
+    if not is_unicode_scalar_value(hex_int):
+        raise suffixed_err(src, pos, "Escaped character is not a Unicode scalar value")
+    return pos, chr(hex_int)
+
+
+def parse_literal_str(src: str, pos: Pos) -> tuple[Pos, str]:
+    pos += 1  # Skip starting apostrophe
+    start_pos = pos
+    pos = skip_until(
+        src, pos, "'", error_on=ILLEGAL_LITERAL_STR_CHARS, error_on_eof=True
+    )
+    return pos + 1, src[start_pos:pos]  # Skip ending apostrophe
+
+
+def parse_multiline_str(src: str, pos: Pos, *, literal: bool) -> tuple[Pos, str]:
+    pos += 3
+    if src.startswith("\n", pos):
+        pos += 1
+
+    if literal:
+        delim = "'"
+        end_pos = skip_until(
+            src,
+            pos,
+            "'''",
+            error_on=ILLEGAL_MULTILINE_LITERAL_STR_CHARS,
+            error_on_eof=True,
+        )
+        result = src[pos:end_pos]
+        pos = end_pos + 3
+    else:
+        delim = '"'
+        pos, result = parse_basic_str(src, pos, multiline=True)
+
+    # Add at maximum two extra apostrophes/quotes if the end sequence
+    # is 4 or 5 chars long instead of just 3.
+    if not src.startswith(delim, pos):
+        return pos, result
+    pos += 1
+    if not src.startswith(delim, pos):
+        return pos, result + delim
+    pos += 1
+    return pos, result + (delim * 2)
+
+
+def parse_basic_str(src: str, pos: Pos, *, multiline: bool) -> tuple[Pos, str]:
+    if multiline:
+        error_on = ILLEGAL_MULTILINE_BASIC_STR_CHARS
+        parse_escapes = parse_basic_str_escape_multiline
+    else:
+        error_on = ILLEGAL_BASIC_STR_CHARS
+        parse_escapes = parse_basic_str_escape
+    result = ""
+    start_pos = pos
+    while True:
+        try:
+            char = src[pos]
+        except IndexError:
+            raise suffixed_err(src, pos, "Unterminated string") from None
+        if char == '"':
+            if not multiline:
+                return pos + 1, result + src[start_pos:pos]
+            if src.startswith('"""', pos):
+                return pos + 3, result + src[start_pos:pos]
+            pos += 1
+            continue
+        if char == "\\":
+            result += src[start_pos:pos]
+            pos, parsed_escape = parse_escapes(src, pos)
+            result += parsed_escape
+            start_pos = pos
+            continue
+        if char in error_on:
+            raise suffixed_err(src, pos, f"Illegal character {char!r}")
+        pos += 1
+
+
+def parse_value(  # noqa: C901
+    src: str, pos: Pos, parse_float: ParseFloat
+) -> tuple[Pos, Any]:
+    try:
+        char: str | None = src[pos]
+    except IndexError:
+        char = None
+
+    # IMPORTANT: order conditions based on speed of checking and likelihood
+
+    # Basic strings
+    if char == '"':
+        if src.startswith('"""', pos):
+            return parse_multiline_str(src, pos, literal=False)
+        return parse_one_line_basic_str(src, pos)
+
+    # Literal strings
+    if char == "'":
+        if src.startswith("'''", pos):
+            return parse_multiline_str(src, pos, literal=True)
+        return parse_literal_str(src, pos)
+
+    # Booleans
+    if char == "t":
+        if src.startswith("true", pos):
+            return pos + 4, True
+    if char == "f":
+        if src.startswith("false", pos):
+            return pos + 5, False
+
+    # Arrays
+    if char == "[":
+        return parse_array(src, pos, parse_float)
+
+    # Inline tables
+    if char == "{":
+        return parse_inline_table(src, pos, parse_float)
+
+    # Dates and times
+    datetime_match = RE_DATETIME.match(src, pos)
+    if datetime_match:
+        try:
+            datetime_obj = match_to_datetime(datetime_match)
+        except ValueError as e:
+            raise suffixed_err(src, pos, "Invalid date or datetime") from e
+        return datetime_match.end(), datetime_obj
+    localtime_match = RE_LOCALTIME.match(src, pos)
+    if localtime_match:
+        return localtime_match.end(), match_to_localtime(localtime_match)
+
+    # Integers and "normal" floats.
+    # The regex will greedily match any type starting with a decimal
+    # char, so needs to be located after handling of dates and times.
+    number_match = RE_NUMBER.match(src, pos)
+    if number_match:
+        return number_match.end(), match_to_number(number_match, parse_float)
+
+    # Special floats
+    first_three = src[pos : pos + 3]
+    if first_three in {"inf", "nan"}:
+        return pos + 3, parse_float(first_three)
+    first_four = src[pos : pos + 4]
+    if first_four in {"-inf", "+inf", "-nan", "+nan"}:
+        return pos + 4, parse_float(first_four)
+
+    raise suffixed_err(src, pos, "Invalid value")
+
+
+def suffixed_err(src: str, pos: Pos, msg: str) -> TOMLDecodeError:
+    """Return a `TOMLDecodeError` where error message is suffixed with
+    coordinates in source."""
+
+    def coord_repr(src: str, pos: Pos) -> str:
+        if pos >= len(src):
+            return "end of document"
+        line = src.count("\n", 0, pos) + 1
+        if line == 1:
+            column = pos + 1
+        else:
+            column = pos - src.rindex("\n", 0, pos)
+        return f"line {line}, column {column}"
+
+    return TOMLDecodeError(f"{msg} (at {coord_repr(src, pos)})")
+
+
+def is_unicode_scalar_value(codepoint: int) -> bool:
+    return (0 <= codepoint <= 55295) or (57344 <= codepoint <= 1114111)
+
+
+def make_safe_parse_float(parse_float: ParseFloat) -> ParseFloat:
+    """A decorator to make `parse_float` safe.
+
+    `parse_float` must not return dicts or lists, because these types
+    would be mixed with parsed TOML tables and arrays, thus confusing
+    the parser. The returned decorated callable raises `ValueError`
+    instead of returning illegal types.
+    """
+    # The default `float` callable never returns illegal types. Optimize it.
+    if parse_float is float:  # type: ignore[comparison-overlap]
+        return float
+
+    def safe_parse_float(float_str: str) -> Any:
+        float_value = parse_float(float_str)
+        if isinstance(float_value, (dict, list)):
+            raise ValueError("parse_float must not return dicts or lists")
+        return float_value
+
+    return safe_parse_float
diff --git a/setuptools/_vendor/tomli/_re.py b/setuptools/_vendor/tomli/_re.py
new file mode 100644
index 0000000000..994bb7493f
--- /dev/null
+++ b/setuptools/_vendor/tomli/_re.py
@@ -0,0 +1,107 @@
+# SPDX-License-Identifier: MIT
+# SPDX-FileCopyrightText: 2021 Taneli Hukkinen
+# Licensed to PSF under a Contributor Agreement.
+
+from __future__ import annotations
+
+from datetime import date, datetime, time, timedelta, timezone, tzinfo
+from functools import lru_cache
+import re
+from typing import Any
+
+from ._types import ParseFloat
+
+# E.g.
+# - 00:32:00.999999
+# - 00:32:00
+_TIME_RE_STR = r"([01][0-9]|2[0-3]):([0-5][0-9]):([0-5][0-9])(?:\.([0-9]{1,6})[0-9]*)?"
+
+RE_NUMBER = re.compile(
+    r"""
+0
+(?:
+    x[0-9A-Fa-f](?:_?[0-9A-Fa-f])*   # hex
+    |
+    b[01](?:_?[01])*                 # bin
+    |
+    o[0-7](?:_?[0-7])*               # oct
+)
+|
+[+-]?(?:0|[1-9](?:_?[0-9])*)         # dec, integer part
+(?P
+    (?:\.[0-9](?:_?[0-9])*)?         # optional fractional part
+    (?:[eE][+-]?[0-9](?:_?[0-9])*)?  # optional exponent part
+)
+""",
+    flags=re.VERBOSE,
+)
+RE_LOCALTIME = re.compile(_TIME_RE_STR)
+RE_DATETIME = re.compile(
+    rf"""
+([0-9]{{4}})-(0[1-9]|1[0-2])-(0[1-9]|[12][0-9]|3[01])  # date, e.g. 1988-10-27
+(?:
+    [Tt ]
+    {_TIME_RE_STR}
+    (?:([Zz])|([+-])([01][0-9]|2[0-3]):([0-5][0-9]))?  # optional time offset
+)?
+""",
+    flags=re.VERBOSE,
+)
+
+
+def match_to_datetime(match: re.Match) -> datetime | date:
+    """Convert a `RE_DATETIME` match to `datetime.datetime` or `datetime.date`.
+
+    Raises ValueError if the match does not correspond to a valid date
+    or datetime.
+    """
+    (
+        year_str,
+        month_str,
+        day_str,
+        hour_str,
+        minute_str,
+        sec_str,
+        micros_str,
+        zulu_time,
+        offset_sign_str,
+        offset_hour_str,
+        offset_minute_str,
+    ) = match.groups()
+    year, month, day = int(year_str), int(month_str), int(day_str)
+    if hour_str is None:
+        return date(year, month, day)
+    hour, minute, sec = int(hour_str), int(minute_str), int(sec_str)
+    micros = int(micros_str.ljust(6, "0")) if micros_str else 0
+    if offset_sign_str:
+        tz: tzinfo | None = cached_tz(
+            offset_hour_str, offset_minute_str, offset_sign_str
+        )
+    elif zulu_time:
+        tz = timezone.utc
+    else:  # local date-time
+        tz = None
+    return datetime(year, month, day, hour, minute, sec, micros, tzinfo=tz)
+
+
+@lru_cache(maxsize=None)
+def cached_tz(hour_str: str, minute_str: str, sign_str: str) -> timezone:
+    sign = 1 if sign_str == "+" else -1
+    return timezone(
+        timedelta(
+            hours=sign * int(hour_str),
+            minutes=sign * int(minute_str),
+        )
+    )
+
+
+def match_to_localtime(match: re.Match) -> time:
+    hour_str, minute_str, sec_str, micros_str = match.groups()
+    micros = int(micros_str.ljust(6, "0")) if micros_str else 0
+    return time(int(hour_str), int(minute_str), int(sec_str), micros)
+
+
+def match_to_number(match: re.Match, parse_float: ParseFloat) -> Any:
+    if match.group("floatpart"):
+        return parse_float(match.group())
+    return int(match.group(), 0)
diff --git a/setuptools/_vendor/tomli/_types.py b/setuptools/_vendor/tomli/_types.py
new file mode 100644
index 0000000000..d949412e03
--- /dev/null
+++ b/setuptools/_vendor/tomli/_types.py
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: MIT
+# SPDX-FileCopyrightText: 2021 Taneli Hukkinen
+# Licensed to PSF under a Contributor Agreement.
+
+from typing import Any, Callable, Tuple
+
+# Type annotations
+ParseFloat = Callable[[str], Any]
+Key = Tuple[str, ...]
+Pos = int
diff --git a/setuptools/_vendor/tomli/py.typed b/setuptools/_vendor/tomli/py.typed
new file mode 100644
index 0000000000..7632ecf775
--- /dev/null
+++ b/setuptools/_vendor/tomli/py.typed
@@ -0,0 +1 @@
+# Marker file for PEP 561
diff --git a/setuptools/_vendor/typeguard-4.3.0.dist-info/INSTALLER b/setuptools/_vendor/typeguard-4.3.0.dist-info/INSTALLER
new file mode 100644
index 0000000000..a1b589e38a
--- /dev/null
+++ b/setuptools/_vendor/typeguard-4.3.0.dist-info/INSTALLER
@@ -0,0 +1 @@
+pip
diff --git a/setuptools/_vendor/typeguard-4.3.0.dist-info/LICENSE b/setuptools/_vendor/typeguard-4.3.0.dist-info/LICENSE
new file mode 100644
index 0000000000..07806f8af9
--- /dev/null
+++ b/setuptools/_vendor/typeguard-4.3.0.dist-info/LICENSE
@@ -0,0 +1,19 @@
+This is the MIT license: http://www.opensource.org/licenses/mit-license.php
+
+Copyright (c) Alex Grönholm
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this
+software and associated documentation files (the "Software"), to deal in the Software
+without restriction, including without limitation the rights to use, copy, modify, merge,
+publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
+to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or
+substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
+INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
+FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
diff --git a/setuptools/_vendor/typeguard-4.3.0.dist-info/METADATA b/setuptools/_vendor/typeguard-4.3.0.dist-info/METADATA
new file mode 100644
index 0000000000..6e5750b485
--- /dev/null
+++ b/setuptools/_vendor/typeguard-4.3.0.dist-info/METADATA
@@ -0,0 +1,81 @@
+Metadata-Version: 2.1
+Name: typeguard
+Version: 4.3.0
+Summary: Run-time type checker for Python
+Author-email: Alex Grönholm 
+License: MIT
+Project-URL: Documentation, https://typeguard.readthedocs.io/en/latest/
+Project-URL: Change log, https://typeguard.readthedocs.io/en/latest/versionhistory.html
+Project-URL: Source code, https://github.com/agronholm/typeguard
+Project-URL: Issue tracker, https://github.com/agronholm/typeguard/issues
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Intended Audience :: Developers
+Classifier: License :: OSI Approved :: MIT License
+Classifier: Programming Language :: Python
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3.8
+Classifier: Programming Language :: Python :: 3.9
+Classifier: Programming Language :: Python :: 3.10
+Classifier: Programming Language :: Python :: 3.11
+Classifier: Programming Language :: Python :: 3.12
+Requires-Python: >=3.8
+Description-Content-Type: text/x-rst
+License-File: LICENSE
+Requires-Dist: typing-extensions >=4.10.0
+Requires-Dist: importlib-metadata >=3.6 ; python_version < "3.10"
+Provides-Extra: doc
+Requires-Dist: packaging ; extra == 'doc'
+Requires-Dist: Sphinx >=7 ; extra == 'doc'
+Requires-Dist: sphinx-autodoc-typehints >=1.2.0 ; extra == 'doc'
+Requires-Dist: sphinx-rtd-theme >=1.3.0 ; extra == 'doc'
+Provides-Extra: test
+Requires-Dist: coverage[toml] >=7 ; extra == 'test'
+Requires-Dist: pytest >=7 ; extra == 'test'
+Requires-Dist: mypy >=1.2.0 ; (platform_python_implementation != "PyPy") and extra == 'test'
+
+.. image:: https://github.com/agronholm/typeguard/actions/workflows/test.yml/badge.svg
+  :target: https://github.com/agronholm/typeguard/actions/workflows/test.yml
+  :alt: Build Status
+.. image:: https://coveralls.io/repos/agronholm/typeguard/badge.svg?branch=master&service=github
+  :target: https://coveralls.io/github/agronholm/typeguard?branch=master
+  :alt: Code Coverage
+.. image:: https://readthedocs.org/projects/typeguard/badge/?version=latest
+  :target: https://typeguard.readthedocs.io/en/latest/?badge=latest
+  :alt: Documentation
+
+This library provides run-time type checking for functions defined with
+`PEP 484 `_ argument (and return) type
+annotations, and any arbitrary objects. It can be used together with static type
+checkers as an additional layer of type safety, to catch type violations that could only
+be detected at run time.
+
+Two principal ways to do type checking are provided:
+
+#. The ``check_type`` function:
+
+   * like ``isinstance()``, but supports arbitrary type annotations (within limits)
+   * can be used as a ``cast()`` replacement, but with actual checking of the value
+#. Code instrumentation:
+
+   * entire modules, or individual functions (via ``@typechecked``) are recompiled, with
+     type checking code injected into them
+   * automatically checks function arguments, return values and assignments to annotated
+     local variables
+   * for generator functions (regular and async), checks yield and send values
+   * requires the original source code of the instrumented module(s) to be accessible
+
+Two options are provided for code instrumentation:
+
+#. the ``@typechecked`` function:
+
+   * can be applied to functions individually
+#. the import hook (``typeguard.install_import_hook()``):
+
+   * automatically instruments targeted modules on import
+   * no manual code changes required in the target modules
+   * requires the import hook to be installed before the targeted modules are imported
+   * may clash with other import hooks
+
+See the documentation_ for further information.
+
+.. _documentation: https://typeguard.readthedocs.io/en/latest/
diff --git a/setuptools/_vendor/typeguard-4.3.0.dist-info/RECORD b/setuptools/_vendor/typeguard-4.3.0.dist-info/RECORD
new file mode 100644
index 0000000000..801e73347c
--- /dev/null
+++ b/setuptools/_vendor/typeguard-4.3.0.dist-info/RECORD
@@ -0,0 +1,34 @@
+typeguard-4.3.0.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4
+typeguard-4.3.0.dist-info/LICENSE,sha256=YWP3mH37ONa8MgzitwsvArhivEESZRbVUu8c1DJH51g,1130
+typeguard-4.3.0.dist-info/METADATA,sha256=z2dcHAp0TwhYCFU5Deh8x31nazElgujUz9tbuP0pjSE,3717
+typeguard-4.3.0.dist-info/RECORD,,
+typeguard-4.3.0.dist-info/WHEEL,sha256=GJ7t_kWBFywbagK5eo9IoUwLW6oyOeTKmQ-9iHFVNxQ,92
+typeguard-4.3.0.dist-info/entry_points.txt,sha256=qp7NQ1aLtiSgMQqo6gWlfGpy0IIXzoMJmeQTLpzqFZQ,48
+typeguard-4.3.0.dist-info/top_level.txt,sha256=4z28AhuDodwRS_c1J_l8H51t5QuwfTseskYzlxp6grs,10
+typeguard/__init__.py,sha256=Onh4w38elPCjtlcU3JY9k3h70NjsxXIkAflmQn-Z0FY,2071
+typeguard/__pycache__/__init__.cpython-312.pyc,,
+typeguard/__pycache__/_checkers.cpython-312.pyc,,
+typeguard/__pycache__/_config.cpython-312.pyc,,
+typeguard/__pycache__/_decorators.cpython-312.pyc,,
+typeguard/__pycache__/_exceptions.cpython-312.pyc,,
+typeguard/__pycache__/_functions.cpython-312.pyc,,
+typeguard/__pycache__/_importhook.cpython-312.pyc,,
+typeguard/__pycache__/_memo.cpython-312.pyc,,
+typeguard/__pycache__/_pytest_plugin.cpython-312.pyc,,
+typeguard/__pycache__/_suppression.cpython-312.pyc,,
+typeguard/__pycache__/_transformer.cpython-312.pyc,,
+typeguard/__pycache__/_union_transformer.cpython-312.pyc,,
+typeguard/__pycache__/_utils.cpython-312.pyc,,
+typeguard/_checkers.py,sha256=JRrgKicdOEfIBoNEtegYCEIlhpad-a1u1Em7GCj0WCI,31360
+typeguard/_config.py,sha256=nIz8QwDa-oFO3L9O8_6srzlmd99pSby2wOM4Wb7F_B0,2846
+typeguard/_decorators.py,sha256=v6dsIeWvPhExGLP_wXF-RmDUyjZf_Ak28g7gBJ_v0-0,9033
+typeguard/_exceptions.py,sha256=ZIPeiV-FBd5Emw2EaWd2Fvlsrwi4ocwT2fVGBIAtHcQ,1121
+typeguard/_functions.py,sha256=ibgSAKa5ptIm1eR9ARG0BSozAFJPFNASZqhPVyQeqig,10393
+typeguard/_importhook.py,sha256=ugjCDvFcdWMU7UugqlJG91IpVNpEIxtRr-99s0h1k7M,6389
+typeguard/_memo.py,sha256=1juQV_vxnD2JYKbSrebiQuj4oKHz6n67v9pYA-CCISg,1303
+typeguard/_pytest_plugin.py,sha256=-fcSqkv54rIfIF8pDavY5YQPkj4OX8GMt_lL7CQSD4I,4416
+typeguard/_suppression.py,sha256=VQfzxcwIbu3if0f7VBkKM7hkYOA7tNFw9a7jMBsmMg4,2266
+typeguard/_transformer.py,sha256=9Ha7_QhdwoUni_6hvdY-hZbuEergowHrNL2vzHIakFY,44937
+typeguard/_union_transformer.py,sha256=v_42r7-6HuRX2SoFwnyJ-E5PlxXpVeUJPJR1-HU9qSo,1354
+typeguard/_utils.py,sha256=5HhO1rPn5f1M6ymkVAEv7Xmlz1cX-j0OnTMlyHqqrR8,5270
+typeguard/py.typed,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0
diff --git a/setuptools/_vendor/typeguard-4.3.0.dist-info/WHEEL b/setuptools/_vendor/typeguard-4.3.0.dist-info/WHEEL
new file mode 100644
index 0000000000..bab98d6758
--- /dev/null
+++ b/setuptools/_vendor/typeguard-4.3.0.dist-info/WHEEL
@@ -0,0 +1,5 @@
+Wheel-Version: 1.0
+Generator: bdist_wheel (0.43.0)
+Root-Is-Purelib: true
+Tag: py3-none-any
+
diff --git a/setuptools/_vendor/typeguard-4.3.0.dist-info/entry_points.txt b/setuptools/_vendor/typeguard-4.3.0.dist-info/entry_points.txt
new file mode 100644
index 0000000000..47c9d0bd91
--- /dev/null
+++ b/setuptools/_vendor/typeguard-4.3.0.dist-info/entry_points.txt
@@ -0,0 +1,2 @@
+[pytest11]
+typeguard = typeguard._pytest_plugin
diff --git a/setuptools/_vendor/typeguard-4.3.0.dist-info/top_level.txt b/setuptools/_vendor/typeguard-4.3.0.dist-info/top_level.txt
new file mode 100644
index 0000000000..be5ec23ea2
--- /dev/null
+++ b/setuptools/_vendor/typeguard-4.3.0.dist-info/top_level.txt
@@ -0,0 +1 @@
+typeguard
diff --git a/setuptools/_vendor/typeguard/__init__.py b/setuptools/_vendor/typeguard/__init__.py
new file mode 100644
index 0000000000..6781cad094
--- /dev/null
+++ b/setuptools/_vendor/typeguard/__init__.py
@@ -0,0 +1,48 @@
+import os
+from typing import Any
+
+from ._checkers import TypeCheckerCallable as TypeCheckerCallable
+from ._checkers import TypeCheckLookupCallback as TypeCheckLookupCallback
+from ._checkers import check_type_internal as check_type_internal
+from ._checkers import checker_lookup_functions as checker_lookup_functions
+from ._checkers import load_plugins as load_plugins
+from ._config import CollectionCheckStrategy as CollectionCheckStrategy
+from ._config import ForwardRefPolicy as ForwardRefPolicy
+from ._config import TypeCheckConfiguration as TypeCheckConfiguration
+from ._decorators import typechecked as typechecked
+from ._decorators import typeguard_ignore as typeguard_ignore
+from ._exceptions import InstrumentationWarning as InstrumentationWarning
+from ._exceptions import TypeCheckError as TypeCheckError
+from ._exceptions import TypeCheckWarning as TypeCheckWarning
+from ._exceptions import TypeHintWarning as TypeHintWarning
+from ._functions import TypeCheckFailCallback as TypeCheckFailCallback
+from ._functions import check_type as check_type
+from ._functions import warn_on_error as warn_on_error
+from ._importhook import ImportHookManager as ImportHookManager
+from ._importhook import TypeguardFinder as TypeguardFinder
+from ._importhook import install_import_hook as install_import_hook
+from ._memo import TypeCheckMemo as TypeCheckMemo
+from ._suppression import suppress_type_checks as suppress_type_checks
+from ._utils import Unset as Unset
+
+# Re-export imports so they look like they live directly in this package
+for value in list(locals().values()):
+    if getattr(value, "__module__", "").startswith(f"{__name__}."):
+        value.__module__ = __name__
+
+
+config: TypeCheckConfiguration
+
+
+def __getattr__(name: str) -> Any:
+    if name == "config":
+        from ._config import global_config
+
+        return global_config
+
+    raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
+
+
+# Automatically load checker lookup functions unless explicitly disabled
+if "TYPEGUARD_DISABLE_PLUGIN_AUTOLOAD" not in os.environ:
+    load_plugins()
diff --git a/setuptools/_vendor/typeguard/_checkers.py b/setuptools/_vendor/typeguard/_checkers.py
new file mode 100644
index 0000000000..67dd5ad4dc
--- /dev/null
+++ b/setuptools/_vendor/typeguard/_checkers.py
@@ -0,0 +1,993 @@
+from __future__ import annotations
+
+import collections.abc
+import inspect
+import sys
+import types
+import typing
+import warnings
+from enum import Enum
+from inspect import Parameter, isclass, isfunction
+from io import BufferedIOBase, IOBase, RawIOBase, TextIOBase
+from textwrap import indent
+from typing import (
+    IO,
+    AbstractSet,
+    Any,
+    BinaryIO,
+    Callable,
+    Dict,
+    ForwardRef,
+    List,
+    Mapping,
+    MutableMapping,
+    NewType,
+    Optional,
+    Sequence,
+    Set,
+    TextIO,
+    Tuple,
+    Type,
+    TypeVar,
+    Union,
+)
+from unittest.mock import Mock
+from weakref import WeakKeyDictionary
+
+try:
+    import typing_extensions
+except ImportError:
+    typing_extensions = None  # type: ignore[assignment]
+
+# Must use this because typing.is_typeddict does not recognize
+# TypedDict from typing_extensions, and as of version 4.12.0
+# typing_extensions.TypedDict is different from typing.TypedDict
+# on all versions.
+from typing_extensions import is_typeddict
+
+from ._config import ForwardRefPolicy
+from ._exceptions import TypeCheckError, TypeHintWarning
+from ._memo import TypeCheckMemo
+from ._utils import evaluate_forwardref, get_stacklevel, get_type_name, qualified_name
+
+if sys.version_info >= (3, 11):
+    from typing import (
+        Annotated,
+        NotRequired,
+        TypeAlias,
+        get_args,
+        get_origin,
+    )
+
+    SubclassableAny = Any
+else:
+    from typing_extensions import (
+        Annotated,
+        NotRequired,
+        TypeAlias,
+        get_args,
+        get_origin,
+    )
+    from typing_extensions import Any as SubclassableAny
+
+if sys.version_info >= (3, 10):
+    from importlib.metadata import entry_points
+    from typing import ParamSpec
+else:
+    from importlib_metadata import entry_points
+    from typing_extensions import ParamSpec
+
+TypeCheckerCallable: TypeAlias = Callable[
+    [Any, Any, Tuple[Any, ...], TypeCheckMemo], Any
+]
+TypeCheckLookupCallback: TypeAlias = Callable[
+    [Any, Tuple[Any, ...], Tuple[Any, ...]], Optional[TypeCheckerCallable]
+]
+
+checker_lookup_functions: list[TypeCheckLookupCallback] = []
+generic_alias_types: tuple[type, ...] = (type(List), type(List[Any]))
+if sys.version_info >= (3, 9):
+    generic_alias_types += (types.GenericAlias,)
+
+protocol_check_cache: WeakKeyDictionary[
+    type[Any], dict[type[Any], TypeCheckError | None]
+] = WeakKeyDictionary()
+
+# Sentinel
+_missing = object()
+
+# Lifted from mypy.sharedparse
+BINARY_MAGIC_METHODS = {
+    "__add__",
+    "__and__",
+    "__cmp__",
+    "__divmod__",
+    "__div__",
+    "__eq__",
+    "__floordiv__",
+    "__ge__",
+    "__gt__",
+    "__iadd__",
+    "__iand__",
+    "__idiv__",
+    "__ifloordiv__",
+    "__ilshift__",
+    "__imatmul__",
+    "__imod__",
+    "__imul__",
+    "__ior__",
+    "__ipow__",
+    "__irshift__",
+    "__isub__",
+    "__itruediv__",
+    "__ixor__",
+    "__le__",
+    "__lshift__",
+    "__lt__",
+    "__matmul__",
+    "__mod__",
+    "__mul__",
+    "__ne__",
+    "__or__",
+    "__pow__",
+    "__radd__",
+    "__rand__",
+    "__rdiv__",
+    "__rfloordiv__",
+    "__rlshift__",
+    "__rmatmul__",
+    "__rmod__",
+    "__rmul__",
+    "__ror__",
+    "__rpow__",
+    "__rrshift__",
+    "__rshift__",
+    "__rsub__",
+    "__rtruediv__",
+    "__rxor__",
+    "__sub__",
+    "__truediv__",
+    "__xor__",
+}
+
+
+def check_callable(
+    value: Any,
+    origin_type: Any,
+    args: tuple[Any, ...],
+    memo: TypeCheckMemo,
+) -> None:
+    if not callable(value):
+        raise TypeCheckError("is not callable")
+
+    if args:
+        try:
+            signature = inspect.signature(value)
+        except (TypeError, ValueError):
+            return
+
+        argument_types = args[0]
+        if isinstance(argument_types, list) and not any(
+            type(item) is ParamSpec for item in argument_types
+        ):
+            # The callable must not have keyword-only arguments without defaults
+            unfulfilled_kwonlyargs = [
+                param.name
+                for param in signature.parameters.values()
+                if param.kind == Parameter.KEYWORD_ONLY
+                and param.default == Parameter.empty
+            ]
+            if unfulfilled_kwonlyargs:
+                raise TypeCheckError(
+                    f"has mandatory keyword-only arguments in its declaration: "
+                    f'{", ".join(unfulfilled_kwonlyargs)}'
+                )
+
+            num_positional_args = num_mandatory_pos_args = 0
+            has_varargs = False
+            for param in signature.parameters.values():
+                if param.kind in (
+                    Parameter.POSITIONAL_ONLY,
+                    Parameter.POSITIONAL_OR_KEYWORD,
+                ):
+                    num_positional_args += 1
+                    if param.default is Parameter.empty:
+                        num_mandatory_pos_args += 1
+                elif param.kind == Parameter.VAR_POSITIONAL:
+                    has_varargs = True
+
+            if num_mandatory_pos_args > len(argument_types):
+                raise TypeCheckError(
+                    f"has too many mandatory positional arguments in its declaration; "
+                    f"expected {len(argument_types)} but {num_mandatory_pos_args} "
+                    f"mandatory positional argument(s) declared"
+                )
+            elif not has_varargs and num_positional_args < len(argument_types):
+                raise TypeCheckError(
+                    f"has too few arguments in its declaration; expected "
+                    f"{len(argument_types)} but {num_positional_args} argument(s) "
+                    f"declared"
+                )
+
+
+def check_mapping(
+    value: Any,
+    origin_type: Any,
+    args: tuple[Any, ...],
+    memo: TypeCheckMemo,
+) -> None:
+    if origin_type is Dict or origin_type is dict:
+        if not isinstance(value, dict):
+            raise TypeCheckError("is not a dict")
+    if origin_type is MutableMapping or origin_type is collections.abc.MutableMapping:
+        if not isinstance(value, collections.abc.MutableMapping):
+            raise TypeCheckError("is not a mutable mapping")
+    elif not isinstance(value, collections.abc.Mapping):
+        raise TypeCheckError("is not a mapping")
+
+    if args:
+        key_type, value_type = args
+        if key_type is not Any or value_type is not Any:
+            samples = memo.config.collection_check_strategy.iterate_samples(
+                value.items()
+            )
+            for k, v in samples:
+                try:
+                    check_type_internal(k, key_type, memo)
+                except TypeCheckError as exc:
+                    exc.append_path_element(f"key {k!r}")
+                    raise
+
+                try:
+                    check_type_internal(v, value_type, memo)
+                except TypeCheckError as exc:
+                    exc.append_path_element(f"value of key {k!r}")
+                    raise
+
+
+def check_typed_dict(
+    value: Any,
+    origin_type: Any,
+    args: tuple[Any, ...],
+    memo: TypeCheckMemo,
+) -> None:
+    if not isinstance(value, dict):
+        raise TypeCheckError("is not a dict")
+
+    declared_keys = frozenset(origin_type.__annotations__)
+    if hasattr(origin_type, "__required_keys__"):
+        required_keys = set(origin_type.__required_keys__)
+    else:  # py3.8 and lower
+        required_keys = set(declared_keys) if origin_type.__total__ else set()
+
+    existing_keys = set(value)
+    extra_keys = existing_keys - declared_keys
+    if extra_keys:
+        keys_formatted = ", ".join(f'"{key}"' for key in sorted(extra_keys, key=repr))
+        raise TypeCheckError(f"has unexpected extra key(s): {keys_formatted}")
+
+    # Detect NotRequired fields which are hidden by get_type_hints()
+    type_hints: dict[str, type] = {}
+    for key, annotation in origin_type.__annotations__.items():
+        if isinstance(annotation, ForwardRef):
+            annotation = evaluate_forwardref(annotation, memo)
+            if get_origin(annotation) is NotRequired:
+                required_keys.discard(key)
+                annotation = get_args(annotation)[0]
+
+        type_hints[key] = annotation
+
+    missing_keys = required_keys - existing_keys
+    if missing_keys:
+        keys_formatted = ", ".join(f'"{key}"' for key in sorted(missing_keys, key=repr))
+        raise TypeCheckError(f"is missing required key(s): {keys_formatted}")
+
+    for key, argtype in type_hints.items():
+        argvalue = value.get(key, _missing)
+        if argvalue is not _missing:
+            try:
+                check_type_internal(argvalue, argtype, memo)
+            except TypeCheckError as exc:
+                exc.append_path_element(f"value of key {key!r}")
+                raise
+
+
+def check_list(
+    value: Any,
+    origin_type: Any,
+    args: tuple[Any, ...],
+    memo: TypeCheckMemo,
+) -> None:
+    if not isinstance(value, list):
+        raise TypeCheckError("is not a list")
+
+    if args and args != (Any,):
+        samples = memo.config.collection_check_strategy.iterate_samples(value)
+        for i, v in enumerate(samples):
+            try:
+                check_type_internal(v, args[0], memo)
+            except TypeCheckError as exc:
+                exc.append_path_element(f"item {i}")
+                raise
+
+
+def check_sequence(
+    value: Any,
+    origin_type: Any,
+    args: tuple[Any, ...],
+    memo: TypeCheckMemo,
+) -> None:
+    if not isinstance(value, collections.abc.Sequence):
+        raise TypeCheckError("is not a sequence")
+
+    if args and args != (Any,):
+        samples = memo.config.collection_check_strategy.iterate_samples(value)
+        for i, v in enumerate(samples):
+            try:
+                check_type_internal(v, args[0], memo)
+            except TypeCheckError as exc:
+                exc.append_path_element(f"item {i}")
+                raise
+
+
+def check_set(
+    value: Any,
+    origin_type: Any,
+    args: tuple[Any, ...],
+    memo: TypeCheckMemo,
+) -> None:
+    if origin_type is frozenset:
+        if not isinstance(value, frozenset):
+            raise TypeCheckError("is not a frozenset")
+    elif not isinstance(value, AbstractSet):
+        raise TypeCheckError("is not a set")
+
+    if args and args != (Any,):
+        samples = memo.config.collection_check_strategy.iterate_samples(value)
+        for v in samples:
+            try:
+                check_type_internal(v, args[0], memo)
+            except TypeCheckError as exc:
+                exc.append_path_element(f"[{v}]")
+                raise
+
+
+def check_tuple(
+    value: Any,
+    origin_type: Any,
+    args: tuple[Any, ...],
+    memo: TypeCheckMemo,
+) -> None:
+    # Specialized check for NamedTuples
+    if field_types := getattr(origin_type, "__annotations__", None):
+        if not isinstance(value, origin_type):
+            raise TypeCheckError(
+                f"is not a named tuple of type {qualified_name(origin_type)}"
+            )
+
+        for name, field_type in field_types.items():
+            try:
+                check_type_internal(getattr(value, name), field_type, memo)
+            except TypeCheckError as exc:
+                exc.append_path_element(f"attribute {name!r}")
+                raise
+
+        return
+    elif not isinstance(value, tuple):
+        raise TypeCheckError("is not a tuple")
+
+    if args:
+        use_ellipsis = args[-1] is Ellipsis
+        tuple_params = args[: -1 if use_ellipsis else None]
+    else:
+        # Unparametrized Tuple or plain tuple
+        return
+
+    if use_ellipsis:
+        element_type = tuple_params[0]
+        samples = memo.config.collection_check_strategy.iterate_samples(value)
+        for i, element in enumerate(samples):
+            try:
+                check_type_internal(element, element_type, memo)
+            except TypeCheckError as exc:
+                exc.append_path_element(f"item {i}")
+                raise
+    elif tuple_params == ((),):
+        if value != ():
+            raise TypeCheckError("is not an empty tuple")
+    else:
+        if len(value) != len(tuple_params):
+            raise TypeCheckError(
+                f"has wrong number of elements (expected {len(tuple_params)}, got "
+                f"{len(value)} instead)"
+            )
+
+        for i, (element, element_type) in enumerate(zip(value, tuple_params)):
+            try:
+                check_type_internal(element, element_type, memo)
+            except TypeCheckError as exc:
+                exc.append_path_element(f"item {i}")
+                raise
+
+
+def check_union(
+    value: Any,
+    origin_type: Any,
+    args: tuple[Any, ...],
+    memo: TypeCheckMemo,
+) -> None:
+    errors: dict[str, TypeCheckError] = {}
+    try:
+        for type_ in args:
+            try:
+                check_type_internal(value, type_, memo)
+                return
+            except TypeCheckError as exc:
+                errors[get_type_name(type_)] = exc
+
+        formatted_errors = indent(
+            "\n".join(f"{key}: {error}" for key, error in errors.items()), "  "
+        )
+    finally:
+        del errors  # avoid creating ref cycle
+    raise TypeCheckError(f"did not match any element in the union:\n{formatted_errors}")
+
+
+def check_uniontype(
+    value: Any,
+    origin_type: Any,
+    args: tuple[Any, ...],
+    memo: TypeCheckMemo,
+) -> None:
+    errors: dict[str, TypeCheckError] = {}
+    for type_ in args:
+        try:
+            check_type_internal(value, type_, memo)
+            return
+        except TypeCheckError as exc:
+            errors[get_type_name(type_)] = exc
+
+    formatted_errors = indent(
+        "\n".join(f"{key}: {error}" for key, error in errors.items()), "  "
+    )
+    raise TypeCheckError(f"did not match any element in the union:\n{formatted_errors}")
+
+
+def check_class(
+    value: Any,
+    origin_type: Any,
+    args: tuple[Any, ...],
+    memo: TypeCheckMemo,
+) -> None:
+    if not isclass(value) and not isinstance(value, generic_alias_types):
+        raise TypeCheckError("is not a class")
+
+    if not args:
+        return
+
+    if isinstance(args[0], ForwardRef):
+        expected_class = evaluate_forwardref(args[0], memo)
+    else:
+        expected_class = args[0]
+
+    if expected_class is Any:
+        return
+    elif getattr(expected_class, "_is_protocol", False):
+        check_protocol(value, expected_class, (), memo)
+    elif isinstance(expected_class, TypeVar):
+        check_typevar(value, expected_class, (), memo, subclass_check=True)
+    elif get_origin(expected_class) is Union:
+        errors: dict[str, TypeCheckError] = {}
+        for arg in get_args(expected_class):
+            if arg is Any:
+                return
+
+            try:
+                check_class(value, type, (arg,), memo)
+                return
+            except TypeCheckError as exc:
+                errors[get_type_name(arg)] = exc
+        else:
+            formatted_errors = indent(
+                "\n".join(f"{key}: {error}" for key, error in errors.items()), "  "
+            )
+            raise TypeCheckError(
+                f"did not match any element in the union:\n{formatted_errors}"
+            )
+    elif not issubclass(value, expected_class):  # type: ignore[arg-type]
+        raise TypeCheckError(f"is not a subclass of {qualified_name(expected_class)}")
+
+
+def check_newtype(
+    value: Any,
+    origin_type: Any,
+    args: tuple[Any, ...],
+    memo: TypeCheckMemo,
+) -> None:
+    check_type_internal(value, origin_type.__supertype__, memo)
+
+
+def check_instance(
+    value: Any,
+    origin_type: Any,
+    args: tuple[Any, ...],
+    memo: TypeCheckMemo,
+) -> None:
+    if not isinstance(value, origin_type):
+        raise TypeCheckError(f"is not an instance of {qualified_name(origin_type)}")
+
+
+def check_typevar(
+    value: Any,
+    origin_type: TypeVar,
+    args: tuple[Any, ...],
+    memo: TypeCheckMemo,
+    *,
+    subclass_check: bool = False,
+) -> None:
+    if origin_type.__bound__ is not None:
+        annotation = (
+            Type[origin_type.__bound__] if subclass_check else origin_type.__bound__
+        )
+        check_type_internal(value, annotation, memo)
+    elif origin_type.__constraints__:
+        for constraint in origin_type.__constraints__:
+            annotation = Type[constraint] if subclass_check else constraint
+            try:
+                check_type_internal(value, annotation, memo)
+            except TypeCheckError:
+                pass
+            else:
+                break
+        else:
+            formatted_constraints = ", ".join(
+                get_type_name(constraint) for constraint in origin_type.__constraints__
+            )
+            raise TypeCheckError(
+                f"does not match any of the constraints " f"({formatted_constraints})"
+            )
+
+
+if typing_extensions is None:
+
+    def _is_literal_type(typ: object) -> bool:
+        return typ is typing.Literal
+
+else:
+
+    def _is_literal_type(typ: object) -> bool:
+        return typ is typing.Literal or typ is typing_extensions.Literal
+
+
+def check_literal(
+    value: Any,
+    origin_type: Any,
+    args: tuple[Any, ...],
+    memo: TypeCheckMemo,
+) -> None:
+    def get_literal_args(literal_args: tuple[Any, ...]) -> tuple[Any, ...]:
+        retval: list[Any] = []
+        for arg in literal_args:
+            if _is_literal_type(get_origin(arg)):
+                retval.extend(get_literal_args(arg.__args__))
+            elif arg is None or isinstance(arg, (int, str, bytes, bool, Enum)):
+                retval.append(arg)
+            else:
+                raise TypeError(
+                    f"Illegal literal value: {arg}"
+                )  # TypeError here is deliberate
+
+        return tuple(retval)
+
+    final_args = tuple(get_literal_args(args))
+    try:
+        index = final_args.index(value)
+    except ValueError:
+        pass
+    else:
+        if type(final_args[index]) is type(value):
+            return
+
+    formatted_args = ", ".join(repr(arg) for arg in final_args)
+    raise TypeCheckError(f"is not any of ({formatted_args})") from None
+
+
+def check_literal_string(
+    value: Any,
+    origin_type: Any,
+    args: tuple[Any, ...],
+    memo: TypeCheckMemo,
+) -> None:
+    check_type_internal(value, str, memo)
+
+
+def check_typeguard(
+    value: Any,
+    origin_type: Any,
+    args: tuple[Any, ...],
+    memo: TypeCheckMemo,
+) -> None:
+    check_type_internal(value, bool, memo)
+
+
+def check_none(
+    value: Any,
+    origin_type: Any,
+    args: tuple[Any, ...],
+    memo: TypeCheckMemo,
+) -> None:
+    if value is not None:
+        raise TypeCheckError("is not None")
+
+
+def check_number(
+    value: Any,
+    origin_type: Any,
+    args: tuple[Any, ...],
+    memo: TypeCheckMemo,
+) -> None:
+    if origin_type is complex and not isinstance(value, (complex, float, int)):
+        raise TypeCheckError("is neither complex, float or int")
+    elif origin_type is float and not isinstance(value, (float, int)):
+        raise TypeCheckError("is neither float or int")
+
+
+def check_io(
+    value: Any,
+    origin_type: Any,
+    args: tuple[Any, ...],
+    memo: TypeCheckMemo,
+) -> None:
+    if origin_type is TextIO or (origin_type is IO and args == (str,)):
+        if not isinstance(value, TextIOBase):
+            raise TypeCheckError("is not a text based I/O object")
+    elif origin_type is BinaryIO or (origin_type is IO and args == (bytes,)):
+        if not isinstance(value, (RawIOBase, BufferedIOBase)):
+            raise TypeCheckError("is not a binary I/O object")
+    elif not isinstance(value, IOBase):
+        raise TypeCheckError("is not an I/O object")
+
+
+def check_protocol(
+    value: Any,
+    origin_type: Any,
+    args: tuple[Any, ...],
+    memo: TypeCheckMemo,
+) -> None:
+    subject: type[Any] = value if isclass(value) else type(value)
+
+    if subject in protocol_check_cache:
+        result_map = protocol_check_cache[subject]
+        if origin_type in result_map:
+            if exc := result_map[origin_type]:
+                raise exc
+            else:
+                return
+
+    # Collect a set of methods and non-method attributes present in the protocol
+    ignored_attrs = set(dir(typing.Protocol)) | {
+        "__annotations__",
+        "__non_callable_proto_members__",
+    }
+    expected_methods: dict[str, tuple[Any, Any]] = {}
+    expected_noncallable_members: dict[str, Any] = {}
+    for attrname in dir(origin_type):
+        # Skip attributes present in typing.Protocol
+        if attrname in ignored_attrs:
+            continue
+
+        member = getattr(origin_type, attrname)
+        if callable(member):
+            signature = inspect.signature(member)
+            argtypes = [
+                (p.annotation if p.annotation is not Parameter.empty else Any)
+                for p in signature.parameters.values()
+                if p.kind is not Parameter.KEYWORD_ONLY
+            ] or Ellipsis
+            return_annotation = (
+                signature.return_annotation
+                if signature.return_annotation is not Parameter.empty
+                else Any
+            )
+            expected_methods[attrname] = argtypes, return_annotation
+        else:
+            expected_noncallable_members[attrname] = member
+
+    for attrname, annotation in typing.get_type_hints(origin_type).items():
+        expected_noncallable_members[attrname] = annotation
+
+    subject_annotations = typing.get_type_hints(subject)
+
+    # Check that all required methods are present and their signatures are compatible
+    result_map = protocol_check_cache.setdefault(subject, {})
+    try:
+        for attrname, callable_args in expected_methods.items():
+            try:
+                method = getattr(subject, attrname)
+            except AttributeError:
+                if attrname in subject_annotations:
+                    raise TypeCheckError(
+                        f"is not compatible with the {origin_type.__qualname__} protocol "
+                        f"because its {attrname!r} attribute is not a method"
+                    ) from None
+                else:
+                    raise TypeCheckError(
+                        f"is not compatible with the {origin_type.__qualname__} protocol "
+                        f"because it has no method named {attrname!r}"
+                    ) from None
+
+            if not callable(method):
+                raise TypeCheckError(
+                    f"is not compatible with the {origin_type.__qualname__} protocol "
+                    f"because its {attrname!r} attribute is not a callable"
+                )
+
+            # TODO: raise exception on added keyword-only arguments without defaults
+            try:
+                check_callable(method, Callable, callable_args, memo)
+            except TypeCheckError as exc:
+                raise TypeCheckError(
+                    f"is not compatible with the {origin_type.__qualname__} protocol "
+                    f"because its {attrname!r} method {exc}"
+                ) from None
+
+        # Check that all required non-callable members are present
+        for attrname in expected_noncallable_members:
+            # TODO: implement assignability checks for non-callable members
+            if attrname not in subject_annotations and not hasattr(subject, attrname):
+                raise TypeCheckError(
+                    f"is not compatible with the {origin_type.__qualname__} protocol "
+                    f"because it has no attribute named {attrname!r}"
+                )
+    except TypeCheckError as exc:
+        result_map[origin_type] = exc
+        raise
+    else:
+        result_map[origin_type] = None
+
+
+def check_byteslike(
+    value: Any,
+    origin_type: Any,
+    args: tuple[Any, ...],
+    memo: TypeCheckMemo,
+) -> None:
+    if not isinstance(value, (bytearray, bytes, memoryview)):
+        raise TypeCheckError("is not bytes-like")
+
+
+def check_self(
+    value: Any,
+    origin_type: Any,
+    args: tuple[Any, ...],
+    memo: TypeCheckMemo,
+) -> None:
+    if memo.self_type is None:
+        raise TypeCheckError("cannot be checked against Self outside of a method call")
+
+    if isclass(value):
+        if not issubclass(value, memo.self_type):
+            raise TypeCheckError(
+                f"is not an instance of the self type "
+                f"({qualified_name(memo.self_type)})"
+            )
+    elif not isinstance(value, memo.self_type):
+        raise TypeCheckError(
+            f"is not an instance of the self type ({qualified_name(memo.self_type)})"
+        )
+
+
+def check_paramspec(
+    value: Any,
+    origin_type: Any,
+    args: tuple[Any, ...],
+    memo: TypeCheckMemo,
+) -> None:
+    pass  # No-op for now
+
+
+def check_instanceof(
+    value: Any,
+    origin_type: Any,
+    args: tuple[Any, ...],
+    memo: TypeCheckMemo,
+) -> None:
+    if not isinstance(value, origin_type):
+        raise TypeCheckError(f"is not an instance of {qualified_name(origin_type)}")
+
+
+def check_type_internal(
+    value: Any,
+    annotation: Any,
+    memo: TypeCheckMemo,
+) -> None:
+    """
+    Check that the given object is compatible with the given type annotation.
+
+    This function should only be used by type checker callables. Applications should use
+    :func:`~.check_type` instead.
+
+    :param value: the value to check
+    :param annotation: the type annotation to check against
+    :param memo: a memo object containing configuration and information necessary for
+        looking up forward references
+    """
+
+    if isinstance(annotation, ForwardRef):
+        try:
+            annotation = evaluate_forwardref(annotation, memo)
+        except NameError:
+            if memo.config.forward_ref_policy is ForwardRefPolicy.ERROR:
+                raise
+            elif memo.config.forward_ref_policy is ForwardRefPolicy.WARN:
+                warnings.warn(
+                    f"Cannot resolve forward reference {annotation.__forward_arg__!r}",
+                    TypeHintWarning,
+                    stacklevel=get_stacklevel(),
+                )
+
+            return
+
+    if annotation is Any or annotation is SubclassableAny or isinstance(value, Mock):
+        return
+
+    # Skip type checks if value is an instance of a class that inherits from Any
+    if not isclass(value) and SubclassableAny in type(value).__bases__:
+        return
+
+    extras: tuple[Any, ...]
+    origin_type = get_origin(annotation)
+    if origin_type is Annotated:
+        annotation, *extras_ = get_args(annotation)
+        extras = tuple(extras_)
+        origin_type = get_origin(annotation)
+    else:
+        extras = ()
+
+    if origin_type is not None:
+        args = get_args(annotation)
+
+        # Compatibility hack to distinguish between unparametrized and empty tuple
+        # (tuple[()]), necessary due to https://github.com/python/cpython/issues/91137
+        if origin_type in (tuple, Tuple) and annotation is not Tuple and not args:
+            args = ((),)
+    else:
+        origin_type = annotation
+        args = ()
+
+    for lookup_func in checker_lookup_functions:
+        checker = lookup_func(origin_type, args, extras)
+        if checker:
+            checker(value, origin_type, args, memo)
+            return
+
+    if isclass(origin_type):
+        if not isinstance(value, origin_type):
+            raise TypeCheckError(f"is not an instance of {qualified_name(origin_type)}")
+    elif type(origin_type) is str:  # noqa: E721
+        warnings.warn(
+            f"Skipping type check against {origin_type!r}; this looks like a "
+            f"string-form forward reference imported from another module",
+            TypeHintWarning,
+            stacklevel=get_stacklevel(),
+        )
+
+
+# Equality checks are applied to these
+origin_type_checkers = {
+    bytes: check_byteslike,
+    AbstractSet: check_set,
+    BinaryIO: check_io,
+    Callable: check_callable,
+    collections.abc.Callable: check_callable,
+    complex: check_number,
+    dict: check_mapping,
+    Dict: check_mapping,
+    float: check_number,
+    frozenset: check_set,
+    IO: check_io,
+    list: check_list,
+    List: check_list,
+    typing.Literal: check_literal,
+    Mapping: check_mapping,
+    MutableMapping: check_mapping,
+    None: check_none,
+    collections.abc.Mapping: check_mapping,
+    collections.abc.MutableMapping: check_mapping,
+    Sequence: check_sequence,
+    collections.abc.Sequence: check_sequence,
+    collections.abc.Set: check_set,
+    set: check_set,
+    Set: check_set,
+    TextIO: check_io,
+    tuple: check_tuple,
+    Tuple: check_tuple,
+    type: check_class,
+    Type: check_class,
+    Union: check_union,
+}
+if sys.version_info >= (3, 10):
+    origin_type_checkers[types.UnionType] = check_uniontype
+    origin_type_checkers[typing.TypeGuard] = check_typeguard
+if sys.version_info >= (3, 11):
+    origin_type_checkers.update(
+        {typing.LiteralString: check_literal_string, typing.Self: check_self}
+    )
+if typing_extensions is not None:
+    # On some Python versions, these may simply be re-exports from typing,
+    # but exactly which Python versions is subject to change,
+    # so it's best to err on the safe side
+    # and update the dictionary on all Python versions
+    # if typing_extensions is installed
+    origin_type_checkers[typing_extensions.Literal] = check_literal
+    origin_type_checkers[typing_extensions.LiteralString] = check_literal_string
+    origin_type_checkers[typing_extensions.Self] = check_self
+    origin_type_checkers[typing_extensions.TypeGuard] = check_typeguard
+
+
+def builtin_checker_lookup(
+    origin_type: Any, args: tuple[Any, ...], extras: tuple[Any, ...]
+) -> TypeCheckerCallable | None:
+    checker = origin_type_checkers.get(origin_type)
+    if checker is not None:
+        return checker
+    elif is_typeddict(origin_type):
+        return check_typed_dict
+    elif isclass(origin_type) and issubclass(
+        origin_type,
+        Tuple,  # type: ignore[arg-type]
+    ):
+        # NamedTuple
+        return check_tuple
+    elif getattr(origin_type, "_is_protocol", False):
+        return check_protocol
+    elif isinstance(origin_type, ParamSpec):
+        return check_paramspec
+    elif isinstance(origin_type, TypeVar):
+        return check_typevar
+    elif origin_type.__class__ is NewType:
+        # typing.NewType on Python 3.10+
+        return check_newtype
+    elif (
+        isfunction(origin_type)
+        and getattr(origin_type, "__module__", None) == "typing"
+        and getattr(origin_type, "__qualname__", "").startswith("NewType.")
+        and hasattr(origin_type, "__supertype__")
+    ):
+        # typing.NewType on Python 3.9 and below
+        return check_newtype
+
+    return None
+
+
+checker_lookup_functions.append(builtin_checker_lookup)
+
+
+def load_plugins() -> None:
+    """
+    Load all type checker lookup functions from entry points.
+
+    All entry points from the ``typeguard.checker_lookup`` group are loaded, and the
+    returned lookup functions are added to :data:`typeguard.checker_lookup_functions`.
+
+    .. note:: This function is called implicitly on import, unless the
+        ``TYPEGUARD_DISABLE_PLUGIN_AUTOLOAD`` environment variable is present.
+    """
+
+    for ep in entry_points(group="typeguard.checker_lookup"):
+        try:
+            plugin = ep.load()
+        except Exception as exc:
+            warnings.warn(
+                f"Failed to load plugin {ep.name!r}: " f"{qualified_name(exc)}: {exc}",
+                stacklevel=2,
+            )
+            continue
+
+        if not callable(plugin):
+            warnings.warn(
+                f"Plugin {ep} returned a non-callable object: {plugin!r}", stacklevel=2
+            )
+            continue
+
+        checker_lookup_functions.insert(0, plugin)
diff --git a/setuptools/_vendor/typeguard/_config.py b/setuptools/_vendor/typeguard/_config.py
new file mode 100644
index 0000000000..36efad5396
--- /dev/null
+++ b/setuptools/_vendor/typeguard/_config.py
@@ -0,0 +1,108 @@
+from __future__ import annotations
+
+from collections.abc import Iterable
+from dataclasses import dataclass
+from enum import Enum, auto
+from typing import TYPE_CHECKING, TypeVar
+
+if TYPE_CHECKING:
+    from ._functions import TypeCheckFailCallback
+
+T = TypeVar("T")
+
+
+class ForwardRefPolicy(Enum):
+    """
+    Defines how unresolved forward references are handled.
+
+    Members:
+
+    * ``ERROR``: propagate the :exc:`NameError` when the forward reference lookup fails
+    * ``WARN``: emit a :class:`~.TypeHintWarning` if the forward reference lookup fails
+    * ``IGNORE``: silently skip checks for unresolveable forward references
+    """
+
+    ERROR = auto()
+    WARN = auto()
+    IGNORE = auto()
+
+
+class CollectionCheckStrategy(Enum):
+    """
+    Specifies how thoroughly the contents of collections are type checked.
+
+    This has an effect on the following built-in checkers:
+
+    * ``AbstractSet``
+    * ``Dict``
+    * ``List``
+    * ``Mapping``
+    * ``Set``
+    * ``Tuple[, ...]`` (arbitrarily sized tuples)
+
+    Members:
+
+    * ``FIRST_ITEM``: check only the first item
+    * ``ALL_ITEMS``: check all items
+    """
+
+    FIRST_ITEM = auto()
+    ALL_ITEMS = auto()
+
+    def iterate_samples(self, collection: Iterable[T]) -> Iterable[T]:
+        if self is CollectionCheckStrategy.FIRST_ITEM:
+            try:
+                return [next(iter(collection))]
+            except StopIteration:
+                return ()
+        else:
+            return collection
+
+
+@dataclass
+class TypeCheckConfiguration:
+    """
+     You can change Typeguard's behavior with these settings.
+
+    .. attribute:: typecheck_fail_callback
+       :type: Callable[[TypeCheckError, TypeCheckMemo], Any]
+
+         Callable that is called when type checking fails.
+
+         Default: ``None`` (the :exc:`~.TypeCheckError` is raised directly)
+
+    .. attribute:: forward_ref_policy
+       :type: ForwardRefPolicy
+
+         Specifies what to do when a forward reference fails to resolve.
+
+         Default: ``WARN``
+
+    .. attribute:: collection_check_strategy
+       :type: CollectionCheckStrategy
+
+         Specifies how thoroughly the contents of collections (list, dict, etc.) are
+         type checked.
+
+         Default: ``FIRST_ITEM``
+
+    .. attribute:: debug_instrumentation
+       :type: bool
+
+         If set to ``True``, the code of modules or functions instrumented by typeguard
+         is printed to ``sys.stderr`` after the instrumentation is done
+
+         Requires Python 3.9 or newer.
+
+         Default: ``False``
+    """
+
+    forward_ref_policy: ForwardRefPolicy = ForwardRefPolicy.WARN
+    typecheck_fail_callback: TypeCheckFailCallback | None = None
+    collection_check_strategy: CollectionCheckStrategy = (
+        CollectionCheckStrategy.FIRST_ITEM
+    )
+    debug_instrumentation: bool = False
+
+
+global_config = TypeCheckConfiguration()
diff --git a/setuptools/_vendor/typeguard/_decorators.py b/setuptools/_vendor/typeguard/_decorators.py
new file mode 100644
index 0000000000..cf3253351f
--- /dev/null
+++ b/setuptools/_vendor/typeguard/_decorators.py
@@ -0,0 +1,235 @@
+from __future__ import annotations
+
+import ast
+import inspect
+import sys
+from collections.abc import Sequence
+from functools import partial
+from inspect import isclass, isfunction
+from types import CodeType, FrameType, FunctionType
+from typing import TYPE_CHECKING, Any, Callable, ForwardRef, TypeVar, cast, overload
+from warnings import warn
+
+from ._config import CollectionCheckStrategy, ForwardRefPolicy, global_config
+from ._exceptions import InstrumentationWarning
+from ._functions import TypeCheckFailCallback
+from ._transformer import TypeguardTransformer
+from ._utils import Unset, function_name, get_stacklevel, is_method_of, unset
+
+if TYPE_CHECKING:
+    from typeshed.stdlib.types import _Cell
+
+    _F = TypeVar("_F")
+
+    def typeguard_ignore(f: _F) -> _F:
+        """This decorator is a noop during static type-checking."""
+        return f
+
+else:
+    from typing import no_type_check as typeguard_ignore  # noqa: F401
+
+T_CallableOrType = TypeVar("T_CallableOrType", bound=Callable[..., Any])
+
+
+def make_cell(value: object) -> _Cell:
+    return (lambda: value).__closure__[0]  # type: ignore[index]
+
+
+def find_target_function(
+    new_code: CodeType, target_path: Sequence[str], firstlineno: int
+) -> CodeType | None:
+    target_name = target_path[0]
+    for const in new_code.co_consts:
+        if isinstance(const, CodeType):
+            if const.co_name == target_name:
+                if const.co_firstlineno == firstlineno:
+                    return const
+                elif len(target_path) > 1:
+                    target_code = find_target_function(
+                        const, target_path[1:], firstlineno
+                    )
+                    if target_code:
+                        return target_code
+
+    return None
+
+
+def instrument(f: T_CallableOrType) -> FunctionType | str:
+    if not getattr(f, "__code__", None):
+        return "no code associated"
+    elif not getattr(f, "__module__", None):
+        return "__module__ attribute is not set"
+    elif f.__code__.co_filename == "":
+        return "cannot instrument functions defined in a REPL"
+    elif hasattr(f, "__wrapped__"):
+        return (
+            "@typechecked only supports instrumenting functions wrapped with "
+            "@classmethod, @staticmethod or @property"
+        )
+
+    target_path = [item for item in f.__qualname__.split(".") if item != ""]
+    module_source = inspect.getsource(sys.modules[f.__module__])
+    module_ast = ast.parse(module_source)
+    instrumentor = TypeguardTransformer(target_path, f.__code__.co_firstlineno)
+    instrumentor.visit(module_ast)
+
+    if not instrumentor.target_node or instrumentor.target_lineno is None:
+        return "instrumentor did not find the target function"
+
+    module_code = compile(module_ast, f.__code__.co_filename, "exec", dont_inherit=True)
+    new_code = find_target_function(
+        module_code, target_path, instrumentor.target_lineno
+    )
+    if not new_code:
+        return "cannot find the target function in the AST"
+
+    if global_config.debug_instrumentation and sys.version_info >= (3, 9):
+        # Find the matching AST node, then unparse it to source and print to stdout
+        print(
+            f"Source code of {f.__qualname__}() after instrumentation:"
+            "\n----------------------------------------------",
+            file=sys.stderr,
+        )
+        print(ast.unparse(instrumentor.target_node), file=sys.stderr)
+        print(
+            "----------------------------------------------",
+            file=sys.stderr,
+        )
+
+    closure = f.__closure__
+    if new_code.co_freevars != f.__code__.co_freevars:
+        # Create a new closure and find values for the new free variables
+        frame = cast(FrameType, inspect.currentframe())
+        frame = cast(FrameType, frame.f_back)
+        frame_locals = cast(FrameType, frame.f_back).f_locals
+        cells: list[_Cell] = []
+        for key in new_code.co_freevars:
+            if key in instrumentor.names_used_in_annotations:
+                # Find the value and make a new cell from it
+                value = frame_locals.get(key) or ForwardRef(key)
+                cells.append(make_cell(value))
+            else:
+                # Reuse the cell from the existing closure
+                assert f.__closure__
+                cells.append(f.__closure__[f.__code__.co_freevars.index(key)])
+
+        closure = tuple(cells)
+
+    new_function = FunctionType(new_code, f.__globals__, f.__name__, closure=closure)
+    new_function.__module__ = f.__module__
+    new_function.__name__ = f.__name__
+    new_function.__qualname__ = f.__qualname__
+    new_function.__annotations__ = f.__annotations__
+    new_function.__doc__ = f.__doc__
+    new_function.__defaults__ = f.__defaults__
+    new_function.__kwdefaults__ = f.__kwdefaults__
+    return new_function
+
+
+@overload
+def typechecked(
+    *,
+    forward_ref_policy: ForwardRefPolicy | Unset = unset,
+    typecheck_fail_callback: TypeCheckFailCallback | Unset = unset,
+    collection_check_strategy: CollectionCheckStrategy | Unset = unset,
+    debug_instrumentation: bool | Unset = unset,
+) -> Callable[[T_CallableOrType], T_CallableOrType]: ...
+
+
+@overload
+def typechecked(target: T_CallableOrType) -> T_CallableOrType: ...
+
+
+def typechecked(
+    target: T_CallableOrType | None = None,
+    *,
+    forward_ref_policy: ForwardRefPolicy | Unset = unset,
+    typecheck_fail_callback: TypeCheckFailCallback | Unset = unset,
+    collection_check_strategy: CollectionCheckStrategy | Unset = unset,
+    debug_instrumentation: bool | Unset = unset,
+) -> Any:
+    """
+    Instrument the target function to perform run-time type checking.
+
+    This decorator recompiles the target function, injecting code to type check
+    arguments, return values, yield values (excluding ``yield from``) and assignments to
+    annotated local variables.
+
+    This can also be used as a class decorator. This will instrument all type annotated
+    methods, including :func:`@classmethod `,
+    :func:`@staticmethod `,  and :class:`@property ` decorated
+    methods in the class.
+
+    .. note:: When Python is run in optimized mode (``-O`` or ``-OO``, this decorator
+        is a no-op). This is a feature meant for selectively introducing type checking
+        into a code base where the checks aren't meant to be run in production.
+
+    :param target: the function or class to enable type checking for
+    :param forward_ref_policy: override for
+        :attr:`.TypeCheckConfiguration.forward_ref_policy`
+    :param typecheck_fail_callback: override for
+        :attr:`.TypeCheckConfiguration.typecheck_fail_callback`
+    :param collection_check_strategy: override for
+        :attr:`.TypeCheckConfiguration.collection_check_strategy`
+    :param debug_instrumentation: override for
+        :attr:`.TypeCheckConfiguration.debug_instrumentation`
+
+    """
+    if target is None:
+        return partial(
+            typechecked,
+            forward_ref_policy=forward_ref_policy,
+            typecheck_fail_callback=typecheck_fail_callback,
+            collection_check_strategy=collection_check_strategy,
+            debug_instrumentation=debug_instrumentation,
+        )
+
+    if not __debug__:
+        return target
+
+    if isclass(target):
+        for key, attr in target.__dict__.items():
+            if is_method_of(attr, target):
+                retval = instrument(attr)
+                if isfunction(retval):
+                    setattr(target, key, retval)
+            elif isinstance(attr, (classmethod, staticmethod)):
+                if is_method_of(attr.__func__, target):
+                    retval = instrument(attr.__func__)
+                    if isfunction(retval):
+                        wrapper = attr.__class__(retval)
+                        setattr(target, key, wrapper)
+            elif isinstance(attr, property):
+                kwargs: dict[str, Any] = dict(doc=attr.__doc__)
+                for name in ("fset", "fget", "fdel"):
+                    property_func = kwargs[name] = getattr(attr, name)
+                    if is_method_of(property_func, target):
+                        retval = instrument(property_func)
+                        if isfunction(retval):
+                            kwargs[name] = retval
+
+                setattr(target, key, attr.__class__(**kwargs))
+
+        return target
+
+    # Find either the first Python wrapper or the actual function
+    wrapper_class: (
+        type[classmethod[Any, Any, Any]] | type[staticmethod[Any, Any]] | None
+    ) = None
+    if isinstance(target, (classmethod, staticmethod)):
+        wrapper_class = target.__class__
+        target = target.__func__
+
+    retval = instrument(target)
+    if isinstance(retval, str):
+        warn(
+            f"{retval} -- not typechecking {function_name(target)}",
+            InstrumentationWarning,
+            stacklevel=get_stacklevel(),
+        )
+        return target
+
+    if wrapper_class is None:
+        return retval
+    else:
+        return wrapper_class(retval)
diff --git a/setuptools/_vendor/typeguard/_exceptions.py b/setuptools/_vendor/typeguard/_exceptions.py
new file mode 100644
index 0000000000..625437a649
--- /dev/null
+++ b/setuptools/_vendor/typeguard/_exceptions.py
@@ -0,0 +1,42 @@
+from collections import deque
+from typing import Deque
+
+
+class TypeHintWarning(UserWarning):
+    """
+    A warning that is emitted when a type hint in string form could not be resolved to
+    an actual type.
+    """
+
+
+class TypeCheckWarning(UserWarning):
+    """Emitted by typeguard's type checkers when a type mismatch is detected."""
+
+    def __init__(self, message: str):
+        super().__init__(message)
+
+
+class InstrumentationWarning(UserWarning):
+    """Emitted when there's a problem with instrumenting a function for type checks."""
+
+    def __init__(self, message: str):
+        super().__init__(message)
+
+
+class TypeCheckError(Exception):
+    """
+    Raised by typeguard's type checkers when a type mismatch is detected.
+    """
+
+    def __init__(self, message: str):
+        super().__init__(message)
+        self._path: Deque[str] = deque()
+
+    def append_path_element(self, element: str) -> None:
+        self._path.append(element)
+
+    def __str__(self) -> str:
+        if self._path:
+            return " of ".join(self._path) + " " + str(self.args[0])
+        else:
+            return str(self.args[0])
diff --git a/setuptools/_vendor/typeguard/_functions.py b/setuptools/_vendor/typeguard/_functions.py
new file mode 100644
index 0000000000..28497856a3
--- /dev/null
+++ b/setuptools/_vendor/typeguard/_functions.py
@@ -0,0 +1,308 @@
+from __future__ import annotations
+
+import sys
+import warnings
+from typing import Any, Callable, NoReturn, TypeVar, Union, overload
+
+from . import _suppression
+from ._checkers import BINARY_MAGIC_METHODS, check_type_internal
+from ._config import (
+    CollectionCheckStrategy,
+    ForwardRefPolicy,
+    TypeCheckConfiguration,
+)
+from ._exceptions import TypeCheckError, TypeCheckWarning
+from ._memo import TypeCheckMemo
+from ._utils import get_stacklevel, qualified_name
+
+if sys.version_info >= (3, 11):
+    from typing import Literal, Never, TypeAlias
+else:
+    from typing_extensions import Literal, Never, TypeAlias
+
+T = TypeVar("T")
+TypeCheckFailCallback: TypeAlias = Callable[[TypeCheckError, TypeCheckMemo], Any]
+
+
+@overload
+def check_type(
+    value: object,
+    expected_type: type[T],
+    *,
+    forward_ref_policy: ForwardRefPolicy = ...,
+    typecheck_fail_callback: TypeCheckFailCallback | None = ...,
+    collection_check_strategy: CollectionCheckStrategy = ...,
+) -> T: ...
+
+
+@overload
+def check_type(
+    value: object,
+    expected_type: Any,
+    *,
+    forward_ref_policy: ForwardRefPolicy = ...,
+    typecheck_fail_callback: TypeCheckFailCallback | None = ...,
+    collection_check_strategy: CollectionCheckStrategy = ...,
+) -> Any: ...
+
+
+def check_type(
+    value: object,
+    expected_type: Any,
+    *,
+    forward_ref_policy: ForwardRefPolicy = TypeCheckConfiguration().forward_ref_policy,
+    typecheck_fail_callback: TypeCheckFailCallback | None = (
+        TypeCheckConfiguration().typecheck_fail_callback
+    ),
+    collection_check_strategy: CollectionCheckStrategy = (
+        TypeCheckConfiguration().collection_check_strategy
+    ),
+) -> Any:
+    """
+    Ensure that ``value`` matches ``expected_type``.
+
+    The types from the :mod:`typing` module do not support :func:`isinstance` or
+    :func:`issubclass` so a number of type specific checks are required. This function
+    knows which checker to call for which type.
+
+    This function wraps :func:`~.check_type_internal` in the following ways:
+
+    * Respects type checking suppression (:func:`~.suppress_type_checks`)
+    * Forms a :class:`~.TypeCheckMemo` from the current stack frame
+    * Calls the configured type check fail callback if the check fails
+
+    Note that this function is independent of the globally shared configuration in
+    :data:`typeguard.config`. This means that usage within libraries is safe from being
+    affected configuration changes made by other libraries or by the integrating
+    application. Instead, configuration options have the same default values as their
+    corresponding fields in :class:`TypeCheckConfiguration`.
+
+    :param value: value to be checked against ``expected_type``
+    :param expected_type: a class or generic type instance, or a tuple of such things
+    :param forward_ref_policy: see :attr:`TypeCheckConfiguration.forward_ref_policy`
+    :param typecheck_fail_callback:
+        see :attr`TypeCheckConfiguration.typecheck_fail_callback`
+    :param collection_check_strategy:
+        see :attr:`TypeCheckConfiguration.collection_check_strategy`
+    :return: ``value``, unmodified
+    :raises TypeCheckError: if there is a type mismatch
+
+    """
+    if type(expected_type) is tuple:
+        expected_type = Union[expected_type]
+
+    config = TypeCheckConfiguration(
+        forward_ref_policy=forward_ref_policy,
+        typecheck_fail_callback=typecheck_fail_callback,
+        collection_check_strategy=collection_check_strategy,
+    )
+
+    if _suppression.type_checks_suppressed or expected_type is Any:
+        return value
+
+    frame = sys._getframe(1)
+    memo = TypeCheckMemo(frame.f_globals, frame.f_locals, config=config)
+    try:
+        check_type_internal(value, expected_type, memo)
+    except TypeCheckError as exc:
+        exc.append_path_element(qualified_name(value, add_class_prefix=True))
+        if config.typecheck_fail_callback:
+            config.typecheck_fail_callback(exc, memo)
+        else:
+            raise
+
+    return value
+
+
+def check_argument_types(
+    func_name: str,
+    arguments: dict[str, tuple[Any, Any]],
+    memo: TypeCheckMemo,
+) -> Literal[True]:
+    if _suppression.type_checks_suppressed:
+        return True
+
+    for argname, (value, annotation) in arguments.items():
+        if annotation is NoReturn or annotation is Never:
+            exc = TypeCheckError(
+                f"{func_name}() was declared never to be called but it was"
+            )
+            if memo.config.typecheck_fail_callback:
+                memo.config.typecheck_fail_callback(exc, memo)
+            else:
+                raise exc
+
+        try:
+            check_type_internal(value, annotation, memo)
+        except TypeCheckError as exc:
+            qualname = qualified_name(value, add_class_prefix=True)
+            exc.append_path_element(f'argument "{argname}" ({qualname})')
+            if memo.config.typecheck_fail_callback:
+                memo.config.typecheck_fail_callback(exc, memo)
+            else:
+                raise
+
+    return True
+
+
+def check_return_type(
+    func_name: str,
+    retval: T,
+    annotation: Any,
+    memo: TypeCheckMemo,
+) -> T:
+    if _suppression.type_checks_suppressed:
+        return retval
+
+    if annotation is NoReturn or annotation is Never:
+        exc = TypeCheckError(f"{func_name}() was declared never to return but it did")
+        if memo.config.typecheck_fail_callback:
+            memo.config.typecheck_fail_callback(exc, memo)
+        else:
+            raise exc
+
+    try:
+        check_type_internal(retval, annotation, memo)
+    except TypeCheckError as exc:
+        # Allow NotImplemented if this is a binary magic method (__eq__() et al)
+        if retval is NotImplemented and annotation is bool:
+            # This does (and cannot) not check if it's actually a method
+            func_name = func_name.rsplit(".", 1)[-1]
+            if func_name in BINARY_MAGIC_METHODS:
+                return retval
+
+        qualname = qualified_name(retval, add_class_prefix=True)
+        exc.append_path_element(f"the return value ({qualname})")
+        if memo.config.typecheck_fail_callback:
+            memo.config.typecheck_fail_callback(exc, memo)
+        else:
+            raise
+
+    return retval
+
+
+def check_send_type(
+    func_name: str,
+    sendval: T,
+    annotation: Any,
+    memo: TypeCheckMemo,
+) -> T:
+    if _suppression.type_checks_suppressed:
+        return sendval
+
+    if annotation is NoReturn or annotation is Never:
+        exc = TypeCheckError(
+            f"{func_name}() was declared never to be sent a value to but it was"
+        )
+        if memo.config.typecheck_fail_callback:
+            memo.config.typecheck_fail_callback(exc, memo)
+        else:
+            raise exc
+
+    try:
+        check_type_internal(sendval, annotation, memo)
+    except TypeCheckError as exc:
+        qualname = qualified_name(sendval, add_class_prefix=True)
+        exc.append_path_element(f"the value sent to generator ({qualname})")
+        if memo.config.typecheck_fail_callback:
+            memo.config.typecheck_fail_callback(exc, memo)
+        else:
+            raise
+
+    return sendval
+
+
+def check_yield_type(
+    func_name: str,
+    yieldval: T,
+    annotation: Any,
+    memo: TypeCheckMemo,
+) -> T:
+    if _suppression.type_checks_suppressed:
+        return yieldval
+
+    if annotation is NoReturn or annotation is Never:
+        exc = TypeCheckError(f"{func_name}() was declared never to yield but it did")
+        if memo.config.typecheck_fail_callback:
+            memo.config.typecheck_fail_callback(exc, memo)
+        else:
+            raise exc
+
+    try:
+        check_type_internal(yieldval, annotation, memo)
+    except TypeCheckError as exc:
+        qualname = qualified_name(yieldval, add_class_prefix=True)
+        exc.append_path_element(f"the yielded value ({qualname})")
+        if memo.config.typecheck_fail_callback:
+            memo.config.typecheck_fail_callback(exc, memo)
+        else:
+            raise
+
+    return yieldval
+
+
+def check_variable_assignment(
+    value: object, varname: str, annotation: Any, memo: TypeCheckMemo
+) -> Any:
+    if _suppression.type_checks_suppressed:
+        return value
+
+    try:
+        check_type_internal(value, annotation, memo)
+    except TypeCheckError as exc:
+        qualname = qualified_name(value, add_class_prefix=True)
+        exc.append_path_element(f"value assigned to {varname} ({qualname})")
+        if memo.config.typecheck_fail_callback:
+            memo.config.typecheck_fail_callback(exc, memo)
+        else:
+            raise
+
+    return value
+
+
+def check_multi_variable_assignment(
+    value: Any, targets: list[dict[str, Any]], memo: TypeCheckMemo
+) -> Any:
+    if max(len(target) for target in targets) == 1:
+        iterated_values = [value]
+    else:
+        iterated_values = list(value)
+
+    if not _suppression.type_checks_suppressed:
+        for expected_types in targets:
+            value_index = 0
+            for ann_index, (varname, expected_type) in enumerate(
+                expected_types.items()
+            ):
+                if varname.startswith("*"):
+                    varname = varname[1:]
+                    keys_left = len(expected_types) - 1 - ann_index
+                    next_value_index = len(iterated_values) - keys_left
+                    obj: object = iterated_values[value_index:next_value_index]
+                    value_index = next_value_index
+                else:
+                    obj = iterated_values[value_index]
+                    value_index += 1
+
+                try:
+                    check_type_internal(obj, expected_type, memo)
+                except TypeCheckError as exc:
+                    qualname = qualified_name(obj, add_class_prefix=True)
+                    exc.append_path_element(f"value assigned to {varname} ({qualname})")
+                    if memo.config.typecheck_fail_callback:
+                        memo.config.typecheck_fail_callback(exc, memo)
+                    else:
+                        raise
+
+    return iterated_values[0] if len(iterated_values) == 1 else iterated_values
+
+
+def warn_on_error(exc: TypeCheckError, memo: TypeCheckMemo) -> None:
+    """
+    Emit a warning on a type mismatch.
+
+    This is intended to be used as an error handler in
+    :attr:`TypeCheckConfiguration.typecheck_fail_callback`.
+
+    """
+    warnings.warn(TypeCheckWarning(str(exc)), stacklevel=get_stacklevel())
diff --git a/setuptools/_vendor/typeguard/_importhook.py b/setuptools/_vendor/typeguard/_importhook.py
new file mode 100644
index 0000000000..8590540a5a
--- /dev/null
+++ b/setuptools/_vendor/typeguard/_importhook.py
@@ -0,0 +1,213 @@
+from __future__ import annotations
+
+import ast
+import sys
+import types
+from collections.abc import Callable, Iterable
+from importlib.abc import MetaPathFinder
+from importlib.machinery import ModuleSpec, SourceFileLoader
+from importlib.util import cache_from_source, decode_source
+from inspect import isclass
+from os import PathLike
+from types import CodeType, ModuleType, TracebackType
+from typing import Sequence, TypeVar
+from unittest.mock import patch
+
+from ._config import global_config
+from ._transformer import TypeguardTransformer
+
+if sys.version_info >= (3, 12):
+    from collections.abc import Buffer
+else:
+    from typing_extensions import Buffer
+
+if sys.version_info >= (3, 11):
+    from typing import ParamSpec
+else:
+    from typing_extensions import ParamSpec
+
+if sys.version_info >= (3, 10):
+    from importlib.metadata import PackageNotFoundError, version
+else:
+    from importlib_metadata import PackageNotFoundError, version
+
+try:
+    OPTIMIZATION = "typeguard" + "".join(version("typeguard").split(".")[:3])
+except PackageNotFoundError:
+    OPTIMIZATION = "typeguard"
+
+P = ParamSpec("P")
+T = TypeVar("T")
+
+
+# The name of this function is magical
+def _call_with_frames_removed(
+    f: Callable[P, T], *args: P.args, **kwargs: P.kwargs
+) -> T:
+    return f(*args, **kwargs)
+
+
+def optimized_cache_from_source(path: str, debug_override: bool | None = None) -> str:
+    return cache_from_source(path, debug_override, optimization=OPTIMIZATION)
+
+
+class TypeguardLoader(SourceFileLoader):
+    @staticmethod
+    def source_to_code(
+        data: Buffer | str | ast.Module | ast.Expression | ast.Interactive,
+        path: Buffer | str | PathLike[str] = "",
+    ) -> CodeType:
+        if isinstance(data, (ast.Module, ast.Expression, ast.Interactive)):
+            tree = data
+        else:
+            if isinstance(data, str):
+                source = data
+            else:
+                source = decode_source(data)
+
+            tree = _call_with_frames_removed(
+                ast.parse,
+                source,
+                path,
+                "exec",
+            )
+
+        tree = TypeguardTransformer().visit(tree)
+        ast.fix_missing_locations(tree)
+
+        if global_config.debug_instrumentation and sys.version_info >= (3, 9):
+            print(
+                f"Source code of {path!r} after instrumentation:\n"
+                "----------------------------------------------",
+                file=sys.stderr,
+            )
+            print(ast.unparse(tree), file=sys.stderr)
+            print("----------------------------------------------", file=sys.stderr)
+
+        return _call_with_frames_removed(
+            compile, tree, path, "exec", 0, dont_inherit=True
+        )
+
+    def exec_module(self, module: ModuleType) -> None:
+        # Use a custom optimization marker – the import lock should make this monkey
+        # patch safe
+        with patch(
+            "importlib._bootstrap_external.cache_from_source",
+            optimized_cache_from_source,
+        ):
+            super().exec_module(module)
+
+
+class TypeguardFinder(MetaPathFinder):
+    """
+    Wraps another path finder and instruments the module with
+    :func:`@typechecked ` if :meth:`should_instrument` returns
+    ``True``.
+
+    Should not be used directly, but rather via :func:`~.install_import_hook`.
+
+    .. versionadded:: 2.6
+    """
+
+    def __init__(self, packages: list[str] | None, original_pathfinder: MetaPathFinder):
+        self.packages = packages
+        self._original_pathfinder = original_pathfinder
+
+    def find_spec(
+        self,
+        fullname: str,
+        path: Sequence[str] | None,
+        target: types.ModuleType | None = None,
+    ) -> ModuleSpec | None:
+        if self.should_instrument(fullname):
+            spec = self._original_pathfinder.find_spec(fullname, path, target)
+            if spec is not None and isinstance(spec.loader, SourceFileLoader):
+                spec.loader = TypeguardLoader(spec.loader.name, spec.loader.path)
+                return spec
+
+        return None
+
+    def should_instrument(self, module_name: str) -> bool:
+        """
+        Determine whether the module with the given name should be instrumented.
+
+        :param module_name: full name of the module that is about to be imported (e.g.
+            ``xyz.abc``)
+
+        """
+        if self.packages is None:
+            return True
+
+        for package in self.packages:
+            if module_name == package or module_name.startswith(package + "."):
+                return True
+
+        return False
+
+
+class ImportHookManager:
+    """
+    A handle that can be used to uninstall the Typeguard import hook.
+    """
+
+    def __init__(self, hook: MetaPathFinder):
+        self.hook = hook
+
+    def __enter__(self) -> None:
+        pass
+
+    def __exit__(
+        self,
+        exc_type: type[BaseException],
+        exc_val: BaseException,
+        exc_tb: TracebackType,
+    ) -> None:
+        self.uninstall()
+
+    def uninstall(self) -> None:
+        """Uninstall the import hook."""
+        try:
+            sys.meta_path.remove(self.hook)
+        except ValueError:
+            pass  # already removed
+
+
+def install_import_hook(
+    packages: Iterable[str] | None = None,
+    *,
+    cls: type[TypeguardFinder] = TypeguardFinder,
+) -> ImportHookManager:
+    """
+    Install an import hook that instruments functions for automatic type checking.
+
+    This only affects modules loaded **after** this hook has been installed.
+
+    :param packages: an iterable of package names to instrument, or ``None`` to
+        instrument all packages
+    :param cls: a custom meta path finder class
+    :return: a context manager that uninstalls the hook on exit (or when you call
+        ``.uninstall()``)
+
+    .. versionadded:: 2.6
+
+    """
+    if packages is None:
+        target_packages: list[str] | None = None
+    elif isinstance(packages, str):
+        target_packages = [packages]
+    else:
+        target_packages = list(packages)
+
+    for finder in sys.meta_path:
+        if (
+            isclass(finder)
+            and finder.__name__ == "PathFinder"
+            and hasattr(finder, "find_spec")
+        ):
+            break
+    else:
+        raise RuntimeError("Cannot find a PathFinder in sys.meta_path")
+
+    hook = cls(target_packages, finder)
+    sys.meta_path.insert(0, hook)
+    return ImportHookManager(hook)
diff --git a/setuptools/_vendor/typeguard/_memo.py b/setuptools/_vendor/typeguard/_memo.py
new file mode 100644
index 0000000000..1d0d80c66d
--- /dev/null
+++ b/setuptools/_vendor/typeguard/_memo.py
@@ -0,0 +1,48 @@
+from __future__ import annotations
+
+from typing import Any
+
+from typeguard._config import TypeCheckConfiguration, global_config
+
+
+class TypeCheckMemo:
+    """
+    Contains information necessary for type checkers to do their work.
+
+    .. attribute:: globals
+       :type: dict[str, Any]
+
+        Dictionary of global variables to use for resolving forward references.
+
+    .. attribute:: locals
+       :type: dict[str, Any]
+
+        Dictionary of local variables to use for resolving forward references.
+
+    .. attribute:: self_type
+       :type: type | None
+
+        When running type checks within an instance method or class method, this is the
+        class object that the first argument (usually named ``self`` or ``cls``) refers
+        to.
+
+    .. attribute:: config
+       :type: TypeCheckConfiguration
+
+         Contains the configuration for a particular set of type checking operations.
+    """
+
+    __slots__ = "globals", "locals", "self_type", "config"
+
+    def __init__(
+        self,
+        globals: dict[str, Any],
+        locals: dict[str, Any],
+        *,
+        self_type: type | None = None,
+        config: TypeCheckConfiguration = global_config,
+    ):
+        self.globals = globals
+        self.locals = locals
+        self.self_type = self_type
+        self.config = config
diff --git a/setuptools/_vendor/typeguard/_pytest_plugin.py b/setuptools/_vendor/typeguard/_pytest_plugin.py
new file mode 100644
index 0000000000..7b2f494ec7
--- /dev/null
+++ b/setuptools/_vendor/typeguard/_pytest_plugin.py
@@ -0,0 +1,127 @@
+from __future__ import annotations
+
+import sys
+import warnings
+from typing import TYPE_CHECKING, Any, Literal
+
+from typeguard._config import CollectionCheckStrategy, ForwardRefPolicy, global_config
+from typeguard._exceptions import InstrumentationWarning
+from typeguard._importhook import install_import_hook
+from typeguard._utils import qualified_name, resolve_reference
+
+if TYPE_CHECKING:
+    from pytest import Config, Parser
+
+
+def pytest_addoption(parser: Parser) -> None:
+    def add_ini_option(
+        opt_type: (
+            Literal["string", "paths", "pathlist", "args", "linelist", "bool"] | None
+        ),
+    ) -> None:
+        parser.addini(
+            group.options[-1].names()[0][2:],
+            group.options[-1].attrs()["help"],
+            opt_type,
+        )
+
+    group = parser.getgroup("typeguard")
+    group.addoption(
+        "--typeguard-packages",
+        action="store",
+        help="comma separated name list of packages and modules to instrument for "
+        "type checking, or :all: to instrument all modules loaded after typeguard",
+    )
+    add_ini_option("linelist")
+
+    group.addoption(
+        "--typeguard-debug-instrumentation",
+        action="store_true",
+        help="print all instrumented code to stderr",
+    )
+    add_ini_option("bool")
+
+    group.addoption(
+        "--typeguard-typecheck-fail-callback",
+        action="store",
+        help=(
+            "a module:varname (e.g. typeguard:warn_on_error) reference to a function "
+            "that is called (with the exception, and memo object as arguments) to "
+            "handle a TypeCheckError"
+        ),
+    )
+    add_ini_option("string")
+
+    group.addoption(
+        "--typeguard-forward-ref-policy",
+        action="store",
+        choices=list(ForwardRefPolicy.__members__),
+        help=(
+            "determines how to deal with unresolveable forward references in type "
+            "annotations"
+        ),
+    )
+    add_ini_option("string")
+
+    group.addoption(
+        "--typeguard-collection-check-strategy",
+        action="store",
+        choices=list(CollectionCheckStrategy.__members__),
+        help="determines how thoroughly to check collections (list, dict, etc)",
+    )
+    add_ini_option("string")
+
+
+def pytest_configure(config: Config) -> None:
+    def getoption(name: str) -> Any:
+        return config.getoption(name.replace("-", "_")) or config.getini(name)
+
+    packages: list[str] | None = []
+    if packages_option := config.getoption("typeguard_packages"):
+        packages = [pkg.strip() for pkg in packages_option.split(",")]
+    elif packages_ini := config.getini("typeguard-packages"):
+        packages = packages_ini
+
+    if packages:
+        if packages == [":all:"]:
+            packages = None
+        else:
+            already_imported_packages = sorted(
+                package for package in packages if package in sys.modules
+            )
+            if already_imported_packages:
+                warnings.warn(
+                    f"typeguard cannot check these packages because they are already "
+                    f"imported: {', '.join(already_imported_packages)}",
+                    InstrumentationWarning,
+                    stacklevel=1,
+                )
+
+        install_import_hook(packages=packages)
+
+    debug_option = getoption("typeguard-debug-instrumentation")
+    if debug_option:
+        global_config.debug_instrumentation = True
+
+    fail_callback_option = getoption("typeguard-typecheck-fail-callback")
+    if fail_callback_option:
+        callback = resolve_reference(fail_callback_option)
+        if not callable(callback):
+            raise TypeError(
+                f"{fail_callback_option} ({qualified_name(callback.__class__)}) is not "
+                f"a callable"
+            )
+
+        global_config.typecheck_fail_callback = callback
+
+    forward_ref_policy_option = getoption("typeguard-forward-ref-policy")
+    if forward_ref_policy_option:
+        forward_ref_policy = ForwardRefPolicy.__members__[forward_ref_policy_option]
+        global_config.forward_ref_policy = forward_ref_policy
+
+    collection_check_strategy_option = getoption("typeguard-collection-check-strategy")
+    if collection_check_strategy_option:
+        collection_check_strategy = CollectionCheckStrategy.__members__[
+            collection_check_strategy_option
+        ]
+        global_config.collection_check_strategy = collection_check_strategy
diff --git a/setuptools/_vendor/typeguard/_suppression.py b/setuptools/_vendor/typeguard/_suppression.py
new file mode 100644
index 0000000000..bbbfbfbe8e
--- /dev/null
+++ b/setuptools/_vendor/typeguard/_suppression.py
@@ -0,0 +1,86 @@
+from __future__ import annotations
+
+import sys
+from collections.abc import Callable, Generator
+from contextlib import contextmanager
+from functools import update_wrapper
+from threading import Lock
+from typing import ContextManager, TypeVar, overload
+
+if sys.version_info >= (3, 10):
+    from typing import ParamSpec
+else:
+    from typing_extensions import ParamSpec
+
+P = ParamSpec("P")
+T = TypeVar("T")
+
+type_checks_suppressed = 0
+type_checks_suppress_lock = Lock()
+
+
+@overload
+def suppress_type_checks(func: Callable[P, T]) -> Callable[P, T]: ...
+
+
+@overload
+def suppress_type_checks() -> ContextManager[None]: ...
+
+
+def suppress_type_checks(
+    func: Callable[P, T] | None = None,
+) -> Callable[P, T] | ContextManager[None]:
+    """
+    Temporarily suppress all type checking.
+
+    This function has two operating modes, based on how it's used:
+
+    #. as a context manager (``with suppress_type_checks(): ...``)
+    #. as a decorator (``@suppress_type_checks``)
+
+    When used as a context manager, :func:`check_type` and any automatically
+    instrumented functions skip the actual type checking. These context managers can be
+    nested.
+
+    When used as a decorator, all type checking is suppressed while the function is
+    running.
+
+    Type checking will resume once no more context managers are active and no decorated
+    functions are running.
+
+    Both operating modes are thread-safe.
+
+    """
+
+    def wrapper(*args: P.args, **kwargs: P.kwargs) -> T:
+        global type_checks_suppressed
+
+        with type_checks_suppress_lock:
+            type_checks_suppressed += 1
+
+        assert func is not None
+        try:
+            return func(*args, **kwargs)
+        finally:
+            with type_checks_suppress_lock:
+                type_checks_suppressed -= 1
+
+    def cm() -> Generator[None, None, None]:
+        global type_checks_suppressed
+
+        with type_checks_suppress_lock:
+            type_checks_suppressed += 1
+
+        try:
+            yield
+        finally:
+            with type_checks_suppress_lock:
+                type_checks_suppressed -= 1
+
+    if func is None:
+        # Context manager mode
+        return contextmanager(cm)()
+    else:
+        # Decorator mode
+        update_wrapper(wrapper, func)
+        return wrapper
diff --git a/setuptools/_vendor/typeguard/_transformer.py b/setuptools/_vendor/typeguard/_transformer.py
new file mode 100644
index 0000000000..13ac3630e6
--- /dev/null
+++ b/setuptools/_vendor/typeguard/_transformer.py
@@ -0,0 +1,1229 @@
+from __future__ import annotations
+
+import ast
+import builtins
+import sys
+import typing
+from ast import (
+    AST,
+    Add,
+    AnnAssign,
+    Assign,
+    AsyncFunctionDef,
+    Attribute,
+    AugAssign,
+    BinOp,
+    BitAnd,
+    BitOr,
+    BitXor,
+    Call,
+    ClassDef,
+    Constant,
+    Dict,
+    Div,
+    Expr,
+    Expression,
+    FloorDiv,
+    FunctionDef,
+    If,
+    Import,
+    ImportFrom,
+    Index,
+    List,
+    Load,
+    LShift,
+    MatMult,
+    Mod,
+    Module,
+    Mult,
+    Name,
+    NamedExpr,
+    NodeTransformer,
+    NodeVisitor,
+    Pass,
+    Pow,
+    Return,
+    RShift,
+    Starred,
+    Store,
+    Sub,
+    Subscript,
+    Tuple,
+    Yield,
+    YieldFrom,
+    alias,
+    copy_location,
+    expr,
+    fix_missing_locations,
+    keyword,
+    walk,
+)
+from collections import defaultdict
+from collections.abc import Generator, Sequence
+from contextlib import contextmanager
+from copy import deepcopy
+from dataclasses import dataclass, field
+from typing import Any, ClassVar, cast, overload
+
+generator_names = (
+    "typing.Generator",
+    "collections.abc.Generator",
+    "typing.Iterator",
+    "collections.abc.Iterator",
+    "typing.Iterable",
+    "collections.abc.Iterable",
+    "typing.AsyncIterator",
+    "collections.abc.AsyncIterator",
+    "typing.AsyncIterable",
+    "collections.abc.AsyncIterable",
+    "typing.AsyncGenerator",
+    "collections.abc.AsyncGenerator",
+)
+anytype_names = (
+    "typing.Any",
+    "typing_extensions.Any",
+)
+literal_names = (
+    "typing.Literal",
+    "typing_extensions.Literal",
+)
+annotated_names = (
+    "typing.Annotated",
+    "typing_extensions.Annotated",
+)
+ignore_decorators = (
+    "typing.no_type_check",
+    "typeguard.typeguard_ignore",
+)
+aug_assign_functions = {
+    Add: "iadd",
+    Sub: "isub",
+    Mult: "imul",
+    MatMult: "imatmul",
+    Div: "itruediv",
+    FloorDiv: "ifloordiv",
+    Mod: "imod",
+    Pow: "ipow",
+    LShift: "ilshift",
+    RShift: "irshift",
+    BitAnd: "iand",
+    BitXor: "ixor",
+    BitOr: "ior",
+}
+
+
+@dataclass
+class TransformMemo:
+    node: Module | ClassDef | FunctionDef | AsyncFunctionDef | None
+    parent: TransformMemo | None
+    path: tuple[str, ...]
+    joined_path: Constant = field(init=False)
+    return_annotation: expr | None = None
+    yield_annotation: expr | None = None
+    send_annotation: expr | None = None
+    is_async: bool = False
+    local_names: set[str] = field(init=False, default_factory=set)
+    imported_names: dict[str, str] = field(init=False, default_factory=dict)
+    ignored_names: set[str] = field(init=False, default_factory=set)
+    load_names: defaultdict[str, dict[str, Name]] = field(
+        init=False, default_factory=lambda: defaultdict(dict)
+    )
+    has_yield_expressions: bool = field(init=False, default=False)
+    has_return_expressions: bool = field(init=False, default=False)
+    memo_var_name: Name | None = field(init=False, default=None)
+    should_instrument: bool = field(init=False, default=True)
+    variable_annotations: dict[str, expr] = field(init=False, default_factory=dict)
+    configuration_overrides: dict[str, Any] = field(init=False, default_factory=dict)
+    code_inject_index: int = field(init=False, default=0)
+
+    def __post_init__(self) -> None:
+        elements: list[str] = []
+        memo = self
+        while isinstance(memo.node, (ClassDef, FunctionDef, AsyncFunctionDef)):
+            elements.insert(0, memo.node.name)
+            if not memo.parent:
+                break
+
+            memo = memo.parent
+            if isinstance(memo.node, (FunctionDef, AsyncFunctionDef)):
+                elements.insert(0, "")
+
+        self.joined_path = Constant(".".join(elements))
+
+        # Figure out where to insert instrumentation code
+        if self.node:
+            for index, child in enumerate(self.node.body):
+                if isinstance(child, ImportFrom) and child.module == "__future__":
+                    # (module only) __future__ imports must come first
+                    continue
+                elif (
+                    isinstance(child, Expr)
+                    and isinstance(child.value, Constant)
+                    and isinstance(child.value.value, str)
+                ):
+                    continue  # docstring
+
+                self.code_inject_index = index
+                break
+
+    def get_unused_name(self, name: str) -> str:
+        memo: TransformMemo | None = self
+        while memo is not None:
+            if name in memo.local_names:
+                memo = self
+                name += "_"
+            else:
+                memo = memo.parent
+
+        self.local_names.add(name)
+        return name
+
+    def is_ignored_name(self, expression: expr | Expr | None) -> bool:
+        top_expression = (
+            expression.value if isinstance(expression, Expr) else expression
+        )
+
+        if isinstance(top_expression, Attribute) and isinstance(
+            top_expression.value, Name
+        ):
+            name = top_expression.value.id
+        elif isinstance(top_expression, Name):
+            name = top_expression.id
+        else:
+            return False
+
+        memo: TransformMemo | None = self
+        while memo is not None:
+            if name in memo.ignored_names:
+                return True
+
+            memo = memo.parent
+
+        return False
+
+    def get_memo_name(self) -> Name:
+        if not self.memo_var_name:
+            self.memo_var_name = Name(id="memo", ctx=Load())
+
+        return self.memo_var_name
+
+    def get_import(self, module: str, name: str) -> Name:
+        if module in self.load_names and name in self.load_names[module]:
+            return self.load_names[module][name]
+
+        qualified_name = f"{module}.{name}"
+        if name in self.imported_names and self.imported_names[name] == qualified_name:
+            return Name(id=name, ctx=Load())
+
+        alias = self.get_unused_name(name)
+        node = self.load_names[module][name] = Name(id=alias, ctx=Load())
+        self.imported_names[name] = qualified_name
+        return node
+
+    def insert_imports(self, node: Module | FunctionDef | AsyncFunctionDef) -> None:
+        """Insert imports needed by injected code."""
+        if not self.load_names:
+            return
+
+        # Insert imports after any "from __future__ ..." imports and any docstring
+        for modulename, names in self.load_names.items():
+            aliases = [
+                alias(orig_name, new_name.id if orig_name != new_name.id else None)
+                for orig_name, new_name in sorted(names.items())
+            ]
+            node.body.insert(self.code_inject_index, ImportFrom(modulename, aliases, 0))
+
+    def name_matches(self, expression: expr | Expr | None, *names: str) -> bool:
+        if expression is None:
+            return False
+
+        path: list[str] = []
+        top_expression = (
+            expression.value if isinstance(expression, Expr) else expression
+        )
+
+        if isinstance(top_expression, Subscript):
+            top_expression = top_expression.value
+        elif isinstance(top_expression, Call):
+            top_expression = top_expression.func
+
+        while isinstance(top_expression, Attribute):
+            path.insert(0, top_expression.attr)
+            top_expression = top_expression.value
+
+        if not isinstance(top_expression, Name):
+            return False
+
+        if top_expression.id in self.imported_names:
+            translated = self.imported_names[top_expression.id]
+        elif hasattr(builtins, top_expression.id):
+            translated = "builtins." + top_expression.id
+        else:
+            translated = top_expression.id
+
+        path.insert(0, translated)
+        joined_path = ".".join(path)
+        if joined_path in names:
+            return True
+        elif self.parent:
+            return self.parent.name_matches(expression, *names)
+        else:
+            return False
+
+    def get_config_keywords(self) -> list[keyword]:
+        if self.parent and isinstance(self.parent.node, ClassDef):
+            overrides = self.parent.configuration_overrides.copy()
+        else:
+            overrides = {}
+
+        overrides.update(self.configuration_overrides)
+        return [keyword(key, value) for key, value in overrides.items()]
+
+
+class NameCollector(NodeVisitor):
+    def __init__(self) -> None:
+        self.names: set[str] = set()
+
+    def visit_Import(self, node: Import) -> None:
+        for name in node.names:
+            self.names.add(name.asname or name.name)
+
+    def visit_ImportFrom(self, node: ImportFrom) -> None:
+        for name in node.names:
+            self.names.add(name.asname or name.name)
+
+    def visit_Assign(self, node: Assign) -> None:
+        for target in node.targets:
+            if isinstance(target, Name):
+                self.names.add(target.id)
+
+    def visit_NamedExpr(self, node: NamedExpr) -> Any:
+        if isinstance(node.target, Name):
+            self.names.add(node.target.id)
+
+    def visit_FunctionDef(self, node: FunctionDef) -> None:
+        pass
+
+    def visit_ClassDef(self, node: ClassDef) -> None:
+        pass
+
+
+class GeneratorDetector(NodeVisitor):
+    """Detects if a function node is a generator function."""
+
+    contains_yields: bool = False
+    in_root_function: bool = False
+
+    def visit_Yield(self, node: Yield) -> Any:
+        self.contains_yields = True
+
+    def visit_YieldFrom(self, node: YieldFrom) -> Any:
+        self.contains_yields = True
+
+    def visit_ClassDef(self, node: ClassDef) -> Any:
+        pass
+
+    def visit_FunctionDef(self, node: FunctionDef | AsyncFunctionDef) -> Any:
+        if not self.in_root_function:
+            self.in_root_function = True
+            self.generic_visit(node)
+            self.in_root_function = False
+
+    def visit_AsyncFunctionDef(self, node: AsyncFunctionDef) -> Any:
+        self.visit_FunctionDef(node)
+
+
+class AnnotationTransformer(NodeTransformer):
+    type_substitutions: ClassVar[dict[str, tuple[str, str]]] = {
+        "builtins.dict": ("typing", "Dict"),
+        "builtins.list": ("typing", "List"),
+        "builtins.tuple": ("typing", "Tuple"),
+        "builtins.set": ("typing", "Set"),
+        "builtins.frozenset": ("typing", "FrozenSet"),
+    }
+
+    def __init__(self, transformer: TypeguardTransformer):
+        self.transformer = transformer
+        self._memo = transformer._memo
+        self._level = 0
+
+    def visit(self, node: AST) -> Any:
+        # Don't process Literals
+        if isinstance(node, expr) and self._memo.name_matches(node, *literal_names):
+            return node
+
+        self._level += 1
+        new_node = super().visit(node)
+        self._level -= 1
+
+        if isinstance(new_node, Expression) and not hasattr(new_node, "body"):
+            return None
+
+        # Return None if this new node matches a variation of typing.Any
+        if (
+            self._level == 0
+            and isinstance(new_node, expr)
+            and self._memo.name_matches(new_node, *anytype_names)
+        ):
+            return None
+
+        return new_node
+
+    def visit_BinOp(self, node: BinOp) -> Any:
+        self.generic_visit(node)
+
+        if isinstance(node.op, BitOr):
+            # If either branch of the BinOp has been transformed to `None`, it means
+            # that a type in the union was ignored, so the entire annotation should e
+            # ignored
+            if not hasattr(node, "left") or not hasattr(node, "right"):
+                return None
+
+            # Return Any if either side is Any
+            if self._memo.name_matches(node.left, *anytype_names):
+                return node.left
+            elif self._memo.name_matches(node.right, *anytype_names):
+                return node.right
+
+            if sys.version_info < (3, 10):
+                union_name = self.transformer._get_import("typing", "Union")
+                return Subscript(
+                    value=union_name,
+                    slice=Index(
+                        Tuple(elts=[node.left, node.right], ctx=Load()), ctx=Load()
+                    ),
+                    ctx=Load(),
+                )
+
+        return node
+
+    def visit_Attribute(self, node: Attribute) -> Any:
+        if self._memo.is_ignored_name(node):
+            return None
+
+        return node
+
+    def visit_Subscript(self, node: Subscript) -> Any:
+        if self._memo.is_ignored_name(node.value):
+            return None
+
+        # The subscript of typing(_extensions).Literal can be any arbitrary string, so
+        # don't try to evaluate it as code
+        if node.slice:
+            if isinstance(node.slice, Index):
+                # Python 3.8
+                slice_value = node.slice.value  # type: ignore[attr-defined]
+            else:
+                slice_value = node.slice
+
+            if isinstance(slice_value, Tuple):
+                if self._memo.name_matches(node.value, *annotated_names):
+                    # Only treat the first argument to typing.Annotated as a potential
+                    # forward reference
+                    items = cast(
+                        typing.List[expr],
+                        [self.visit(slice_value.elts[0])] + slice_value.elts[1:],
+                    )
+                else:
+                    items = cast(
+                        typing.List[expr],
+                        [self.visit(item) for item in slice_value.elts],
+                    )
+
+                # If this is a Union and any of the items is Any, erase the entire
+                # annotation
+                if self._memo.name_matches(node.value, "typing.Union") and any(
+                    item is None
+                    or (
+                        isinstance(item, expr)
+                        and self._memo.name_matches(item, *anytype_names)
+                    )
+                    for item in items
+                ):
+                    return None
+
+                # If all items in the subscript were Any, erase the subscript entirely
+                if all(item is None for item in items):
+                    return node.value
+
+                for index, item in enumerate(items):
+                    if item is None:
+                        items[index] = self.transformer._get_import("typing", "Any")
+
+                slice_value.elts = items
+            else:
+                self.generic_visit(node)
+
+                # If the transformer erased the slice entirely, just return the node
+                # value without the subscript (unless it's Optional, in which case erase
+                # the node entirely
+                if self._memo.name_matches(
+                    node.value, "typing.Optional"
+                ) and not hasattr(node, "slice"):
+                    return None
+                if sys.version_info >= (3, 9) and not hasattr(node, "slice"):
+                    return node.value
+                elif sys.version_info < (3, 9) and not hasattr(node.slice, "value"):
+                    return node.value
+
+        return node
+
+    def visit_Name(self, node: Name) -> Any:
+        if self._memo.is_ignored_name(node):
+            return None
+
+        if sys.version_info < (3, 9):
+            for typename, substitute in self.type_substitutions.items():
+                if self._memo.name_matches(node, typename):
+                    new_node = self.transformer._get_import(*substitute)
+                    return copy_location(new_node, node)
+
+        return node
+
+    def visit_Call(self, node: Call) -> Any:
+        # Don't recurse into calls
+        return node
+
+    def visit_Constant(self, node: Constant) -> Any:
+        if isinstance(node.value, str):
+            expression = ast.parse(node.value, mode="eval")
+            new_node = self.visit(expression)
+            if new_node:
+                return copy_location(new_node.body, node)
+            else:
+                return None
+
+        return node
+
+
+class TypeguardTransformer(NodeTransformer):
+    def __init__(
+        self, target_path: Sequence[str] | None = None, target_lineno: int | None = None
+    ) -> None:
+        self._target_path = tuple(target_path) if target_path else None
+        self._memo = self._module_memo = TransformMemo(None, None, ())
+        self.names_used_in_annotations: set[str] = set()
+        self.target_node: FunctionDef | AsyncFunctionDef | None = None
+        self.target_lineno = target_lineno
+
+    def generic_visit(self, node: AST) -> AST:
+        has_non_empty_body_initially = bool(getattr(node, "body", None))
+        initial_type = type(node)
+
+        node = super().generic_visit(node)
+
+        if (
+            type(node) is initial_type
+            and has_non_empty_body_initially
+            and hasattr(node, "body")
+            and not node.body
+        ):
+            # If we have still the same node type after transformation
+            # but we've optimised it's body away, we add a `pass` statement.
+            node.body = [Pass()]
+
+        return node
+
+    @contextmanager
+    def _use_memo(
+        self, node: ClassDef | FunctionDef | AsyncFunctionDef
+    ) -> Generator[None, Any, None]:
+        new_memo = TransformMemo(node, self._memo, self._memo.path + (node.name,))
+        old_memo = self._memo
+        self._memo = new_memo
+
+        if isinstance(node, (FunctionDef, AsyncFunctionDef)):
+            new_memo.should_instrument = (
+                self._target_path is None or new_memo.path == self._target_path
+            )
+            if new_memo.should_instrument:
+                # Check if the function is a generator function
+                detector = GeneratorDetector()
+                detector.visit(node)
+
+                # Extract yield, send and return types where possible from a subscripted
+                # annotation like Generator[int, str, bool]
+                return_annotation = deepcopy(node.returns)
+                if detector.contains_yields and new_memo.name_matches(
+                    return_annotation, *generator_names
+                ):
+                    if isinstance(return_annotation, Subscript):
+                        annotation_slice = return_annotation.slice
+
+                        # Python < 3.9
+                        if isinstance(annotation_slice, Index):
+                            annotation_slice = (
+                                annotation_slice.value  # type: ignore[attr-defined]
+                            )
+
+                        if isinstance(annotation_slice, Tuple):
+                            items = annotation_slice.elts
+                        else:
+                            items = [annotation_slice]
+
+                        if len(items) > 0:
+                            new_memo.yield_annotation = self._convert_annotation(
+                                items[0]
+                            )
+
+                        if len(items) > 1:
+                            new_memo.send_annotation = self._convert_annotation(
+                                items[1]
+                            )
+
+                        if len(items) > 2:
+                            new_memo.return_annotation = self._convert_annotation(
+                                items[2]
+                            )
+                else:
+                    new_memo.return_annotation = self._convert_annotation(
+                        return_annotation
+                    )
+
+        if isinstance(node, AsyncFunctionDef):
+            new_memo.is_async = True
+
+        yield
+        self._memo = old_memo
+
+    def _get_import(self, module: str, name: str) -> Name:
+        memo = self._memo if self._target_path else self._module_memo
+        return memo.get_import(module, name)
+
+    @overload
+    def _convert_annotation(self, annotation: None) -> None: ...
+
+    @overload
+    def _convert_annotation(self, annotation: expr) -> expr: ...
+
+    def _convert_annotation(self, annotation: expr | None) -> expr | None:
+        if annotation is None:
+            return None
+
+        # Convert PEP 604 unions (x | y) and generic built-in collections where
+        # necessary, and undo forward references
+        new_annotation = cast(expr, AnnotationTransformer(self).visit(annotation))
+        if isinstance(new_annotation, expr):
+            new_annotation = ast.copy_location(new_annotation, annotation)
+
+            # Store names used in the annotation
+            names = {node.id for node in walk(new_annotation) if isinstance(node, Name)}
+            self.names_used_in_annotations.update(names)
+
+        return new_annotation
+
+    def visit_Name(self, node: Name) -> Name:
+        self._memo.local_names.add(node.id)
+        return node
+
+    def visit_Module(self, node: Module) -> Module:
+        self._module_memo = self._memo = TransformMemo(node, None, ())
+        self.generic_visit(node)
+        self._module_memo.insert_imports(node)
+
+        fix_missing_locations(node)
+        return node
+
+    def visit_Import(self, node: Import) -> Import:
+        for name in node.names:
+            self._memo.local_names.add(name.asname or name.name)
+            self._memo.imported_names[name.asname or name.name] = name.name
+
+        return node
+
+    def visit_ImportFrom(self, node: ImportFrom) -> ImportFrom:
+        for name in node.names:
+            if name.name != "*":
+                alias = name.asname or name.name
+                self._memo.local_names.add(alias)
+                self._memo.imported_names[alias] = f"{node.module}.{name.name}"
+
+        return node
+
+    def visit_ClassDef(self, node: ClassDef) -> ClassDef | None:
+        self._memo.local_names.add(node.name)
+
+        # Eliminate top level classes not belonging to the target path
+        if (
+            self._target_path is not None
+            and not self._memo.path
+            and node.name != self._target_path[0]
+        ):
+            return None
+
+        with self._use_memo(node):
+            for decorator in node.decorator_list.copy():
+                if self._memo.name_matches(decorator, "typeguard.typechecked"):
+                    # Remove the decorator to prevent duplicate instrumentation
+                    node.decorator_list.remove(decorator)
+
+                    # Store any configuration overrides
+                    if isinstance(decorator, Call) and decorator.keywords:
+                        self._memo.configuration_overrides.update(
+                            {kw.arg: kw.value for kw in decorator.keywords if kw.arg}
+                        )
+
+            self.generic_visit(node)
+            return node
+
+    def visit_FunctionDef(
+        self, node: FunctionDef | AsyncFunctionDef
+    ) -> FunctionDef | AsyncFunctionDef | None:
+        """
+        Injects type checks for function arguments, and for a return of None if the
+        function is annotated to return something else than Any or None, and the body
+        ends without an explicit "return".
+
+        """
+        self._memo.local_names.add(node.name)
+
+        # Eliminate top level functions not belonging to the target path
+        if (
+            self._target_path is not None
+            and not self._memo.path
+            and node.name != self._target_path[0]
+        ):
+            return None
+
+        # Skip instrumentation if we're instrumenting the whole module and the function
+        # contains either @no_type_check or @typeguard_ignore
+        if self._target_path is None:
+            for decorator in node.decorator_list:
+                if self._memo.name_matches(decorator, *ignore_decorators):
+                    return node
+
+        with self._use_memo(node):
+            arg_annotations: dict[str, Any] = {}
+            if self._target_path is None or self._memo.path == self._target_path:
+                # Find line number we're supposed to match against
+                if node.decorator_list:
+                    first_lineno = node.decorator_list[0].lineno
+                else:
+                    first_lineno = node.lineno
+
+                for decorator in node.decorator_list.copy():
+                    if self._memo.name_matches(decorator, "typing.overload"):
+                        # Remove overloads entirely
+                        return None
+                    elif self._memo.name_matches(decorator, "typeguard.typechecked"):
+                        # Remove the decorator to prevent duplicate instrumentation
+                        node.decorator_list.remove(decorator)
+
+                        # Store any configuration overrides
+                        if isinstance(decorator, Call) and decorator.keywords:
+                            self._memo.configuration_overrides = {
+                                kw.arg: kw.value for kw in decorator.keywords if kw.arg
+                            }
+
+                if self.target_lineno == first_lineno:
+                    assert self.target_node is None
+                    self.target_node = node
+                    if node.decorator_list:
+                        self.target_lineno = node.decorator_list[0].lineno
+                    else:
+                        self.target_lineno = node.lineno
+
+                all_args = node.args.args + node.args.kwonlyargs + node.args.posonlyargs
+
+                # Ensure that any type shadowed by the positional or keyword-only
+                # argument names are ignored in this function
+                for arg in all_args:
+                    self._memo.ignored_names.add(arg.arg)
+
+                # Ensure that any type shadowed by the variable positional argument name
+                # (e.g. "args" in *args) is ignored this function
+                if node.args.vararg:
+                    self._memo.ignored_names.add(node.args.vararg.arg)
+
+                # Ensure that any type shadowed by the variable keywrod argument name
+                # (e.g. "kwargs" in *kwargs) is ignored this function
+                if node.args.kwarg:
+                    self._memo.ignored_names.add(node.args.kwarg.arg)
+
+                for arg in all_args:
+                    annotation = self._convert_annotation(deepcopy(arg.annotation))
+                    if annotation:
+                        arg_annotations[arg.arg] = annotation
+
+                if node.args.vararg:
+                    annotation_ = self._convert_annotation(node.args.vararg.annotation)
+                    if annotation_:
+                        if sys.version_info >= (3, 9):
+                            container = Name("tuple", ctx=Load())
+                        else:
+                            container = self._get_import("typing", "Tuple")
+
+                        subscript_slice: Tuple | Index = Tuple(
+                            [
+                                annotation_,
+                                Constant(Ellipsis),
+                            ],
+                            ctx=Load(),
+                        )
+                        if sys.version_info < (3, 9):
+                            subscript_slice = Index(subscript_slice, ctx=Load())
+
+                        arg_annotations[node.args.vararg.arg] = Subscript(
+                            container, subscript_slice, ctx=Load()
+                        )
+
+                if node.args.kwarg:
+                    annotation_ = self._convert_annotation(node.args.kwarg.annotation)
+                    if annotation_:
+                        if sys.version_info >= (3, 9):
+                            container = Name("dict", ctx=Load())
+                        else:
+                            container = self._get_import("typing", "Dict")
+
+                        subscript_slice = Tuple(
+                            [
+                                Name("str", ctx=Load()),
+                                annotation_,
+                            ],
+                            ctx=Load(),
+                        )
+                        if sys.version_info < (3, 9):
+                            subscript_slice = Index(subscript_slice, ctx=Load())
+
+                        arg_annotations[node.args.kwarg.arg] = Subscript(
+                            container, subscript_slice, ctx=Load()
+                        )
+
+                if arg_annotations:
+                    self._memo.variable_annotations.update(arg_annotations)
+
+            self.generic_visit(node)
+
+            if arg_annotations:
+                annotations_dict = Dict(
+                    keys=[Constant(key) for key in arg_annotations.keys()],
+                    values=[
+                        Tuple([Name(key, ctx=Load()), annotation], ctx=Load())
+                        for key, annotation in arg_annotations.items()
+                    ],
+                )
+                func_name = self._get_import(
+                    "typeguard._functions", "check_argument_types"
+                )
+                args = [
+                    self._memo.joined_path,
+                    annotations_dict,
+                    self._memo.get_memo_name(),
+                ]
+                node.body.insert(
+                    self._memo.code_inject_index, Expr(Call(func_name, args, []))
+                )
+
+            # Add a checked "return None" to the end if there's no explicit return
+            # Skip if the return annotation is None or Any
+            if (
+                self._memo.return_annotation
+                and (not self._memo.is_async or not self._memo.has_yield_expressions)
+                and not isinstance(node.body[-1], Return)
+                and (
+                    not isinstance(self._memo.return_annotation, Constant)
+                    or self._memo.return_annotation.value is not None
+                )
+            ):
+                func_name = self._get_import(
+                    "typeguard._functions", "check_return_type"
+                )
+                return_node = Return(
+                    Call(
+                        func_name,
+                        [
+                            self._memo.joined_path,
+                            Constant(None),
+                            self._memo.return_annotation,
+                            self._memo.get_memo_name(),
+                        ],
+                        [],
+                    )
+                )
+
+                # Replace a placeholder "pass" at the end
+                if isinstance(node.body[-1], Pass):
+                    copy_location(return_node, node.body[-1])
+                    del node.body[-1]
+
+                node.body.append(return_node)
+
+            # Insert code to create the call memo, if it was ever needed for this
+            # function
+            if self._memo.memo_var_name:
+                memo_kwargs: dict[str, Any] = {}
+                if self._memo.parent and isinstance(self._memo.parent.node, ClassDef):
+                    for decorator in node.decorator_list:
+                        if (
+                            isinstance(decorator, Name)
+                            and decorator.id == "staticmethod"
+                        ):
+                            break
+                        elif (
+                            isinstance(decorator, Name)
+                            and decorator.id == "classmethod"
+                        ):
+                            memo_kwargs["self_type"] = Name(
+                                id=node.args.args[0].arg, ctx=Load()
+                            )
+                            break
+                    else:
+                        if node.args.args:
+                            if node.name == "__new__":
+                                memo_kwargs["self_type"] = Name(
+                                    id=node.args.args[0].arg, ctx=Load()
+                                )
+                            else:
+                                memo_kwargs["self_type"] = Attribute(
+                                    Name(id=node.args.args[0].arg, ctx=Load()),
+                                    "__class__",
+                                    ctx=Load(),
+                                )
+
+                # Construct the function reference
+                # Nested functions get special treatment: the function name is added
+                # to free variables (and the closure of the resulting function)
+                names: list[str] = [node.name]
+                memo = self._memo.parent
+                while memo:
+                    if isinstance(memo.node, (FunctionDef, AsyncFunctionDef)):
+                        # This is a nested function. Use the function name as-is.
+                        del names[:-1]
+                        break
+                    elif not isinstance(memo.node, ClassDef):
+                        break
+
+                    names.insert(0, memo.node.name)
+                    memo = memo.parent
+
+                config_keywords = self._memo.get_config_keywords()
+                if config_keywords:
+                    memo_kwargs["config"] = Call(
+                        self._get_import("dataclasses", "replace"),
+                        [self._get_import("typeguard._config", "global_config")],
+                        config_keywords,
+                    )
+
+                self._memo.memo_var_name.id = self._memo.get_unused_name("memo")
+                memo_store_name = Name(id=self._memo.memo_var_name.id, ctx=Store())
+                globals_call = Call(Name(id="globals", ctx=Load()), [], [])
+                locals_call = Call(Name(id="locals", ctx=Load()), [], [])
+                memo_expr = Call(
+                    self._get_import("typeguard", "TypeCheckMemo"),
+                    [globals_call, locals_call],
+                    [keyword(key, value) for key, value in memo_kwargs.items()],
+                )
+                node.body.insert(
+                    self._memo.code_inject_index,
+                    Assign([memo_store_name], memo_expr),
+                )
+
+                self._memo.insert_imports(node)
+
+                # Special case the __new__() method to create a local alias from the
+                # class name to the first argument (usually "cls")
+                if (
+                    isinstance(node, FunctionDef)
+                    and node.args
+                    and self._memo.parent is not None
+                    and isinstance(self._memo.parent.node, ClassDef)
+                    and node.name == "__new__"
+                ):
+                    first_args_expr = Name(node.args.args[0].arg, ctx=Load())
+                    cls_name = Name(self._memo.parent.node.name, ctx=Store())
+                    node.body.insert(
+                        self._memo.code_inject_index,
+                        Assign([cls_name], first_args_expr),
+                    )
+
+                # Rmove any placeholder "pass" at the end
+                if isinstance(node.body[-1], Pass):
+                    del node.body[-1]
+
+        return node
+
+    def visit_AsyncFunctionDef(
+        self, node: AsyncFunctionDef
+    ) -> FunctionDef | AsyncFunctionDef | None:
+        return self.visit_FunctionDef(node)
+
+    def visit_Return(self, node: Return) -> Return:
+        """This injects type checks into "return" statements."""
+        self.generic_visit(node)
+        if (
+            self._memo.return_annotation
+            and self._memo.should_instrument
+            and not self._memo.is_ignored_name(self._memo.return_annotation)
+        ):
+            func_name = self._get_import("typeguard._functions", "check_return_type")
+            old_node = node
+            retval = old_node.value or Constant(None)
+            node = Return(
+                Call(
+                    func_name,
+                    [
+                        self._memo.joined_path,
+                        retval,
+                        self._memo.return_annotation,
+                        self._memo.get_memo_name(),
+                    ],
+                    [],
+                )
+            )
+            copy_location(node, old_node)
+
+        return node
+
+    def visit_Yield(self, node: Yield) -> Yield | Call:
+        """
+        This injects type checks into "yield" expressions, checking both the yielded
+        value and the value sent back to the generator, when appropriate.
+
+        """
+        self._memo.has_yield_expressions = True
+        self.generic_visit(node)
+
+        if (
+            self._memo.yield_annotation
+            and self._memo.should_instrument
+            and not self._memo.is_ignored_name(self._memo.yield_annotation)
+        ):
+            func_name = self._get_import("typeguard._functions", "check_yield_type")
+            yieldval = node.value or Constant(None)
+            node.value = Call(
+                func_name,
+                [
+                    self._memo.joined_path,
+                    yieldval,
+                    self._memo.yield_annotation,
+                    self._memo.get_memo_name(),
+                ],
+                [],
+            )
+
+        if (
+            self._memo.send_annotation
+            and self._memo.should_instrument
+            and not self._memo.is_ignored_name(self._memo.send_annotation)
+        ):
+            func_name = self._get_import("typeguard._functions", "check_send_type")
+            old_node = node
+            call_node = Call(
+                func_name,
+                [
+                    self._memo.joined_path,
+                    old_node,
+                    self._memo.send_annotation,
+                    self._memo.get_memo_name(),
+                ],
+                [],
+            )
+            copy_location(call_node, old_node)
+            return call_node
+
+        return node
+
+    def visit_AnnAssign(self, node: AnnAssign) -> Any:
+        """
+        This injects a type check into a local variable annotation-assignment within a
+        function body.
+
+        """
+        self.generic_visit(node)
+
+        if (
+            isinstance(self._memo.node, (FunctionDef, AsyncFunctionDef))
+            and node.annotation
+            and isinstance(node.target, Name)
+        ):
+            self._memo.ignored_names.add(node.target.id)
+            annotation = self._convert_annotation(deepcopy(node.annotation))
+            if annotation:
+                self._memo.variable_annotations[node.target.id] = annotation
+                if node.value:
+                    func_name = self._get_import(
+                        "typeguard._functions", "check_variable_assignment"
+                    )
+                    node.value = Call(
+                        func_name,
+                        [
+                            node.value,
+                            Constant(node.target.id),
+                            annotation,
+                            self._memo.get_memo_name(),
+                        ],
+                        [],
+                    )
+
+        return node
+
+    def visit_Assign(self, node: Assign) -> Any:
+        """
+        This injects a type check into a local variable assignment within a function
+        body. The variable must have been annotated earlier in the function body.
+
+        """
+        self.generic_visit(node)
+
+        # Only instrument function-local assignments
+        if isinstance(self._memo.node, (FunctionDef, AsyncFunctionDef)):
+            targets: list[dict[Constant, expr | None]] = []
+            check_required = False
+            for target in node.targets:
+                elts: Sequence[expr]
+                if isinstance(target, Name):
+                    elts = [target]
+                elif isinstance(target, Tuple):
+                    elts = target.elts
+                else:
+                    continue
+
+                annotations_: dict[Constant, expr | None] = {}
+                for exp in elts:
+                    prefix = ""
+                    if isinstance(exp, Starred):
+                        exp = exp.value
+                        prefix = "*"
+
+                    if isinstance(exp, Name):
+                        self._memo.ignored_names.add(exp.id)
+                        name = prefix + exp.id
+                        annotation = self._memo.variable_annotations.get(exp.id)
+                        if annotation:
+                            annotations_[Constant(name)] = annotation
+                            check_required = True
+                        else:
+                            annotations_[Constant(name)] = None
+
+                targets.append(annotations_)
+
+            if check_required:
+                # Replace missing annotations with typing.Any
+                for item in targets:
+                    for key, expression in item.items():
+                        if expression is None:
+                            item[key] = self._get_import("typing", "Any")
+
+                if len(targets) == 1 and len(targets[0]) == 1:
+                    func_name = self._get_import(
+                        "typeguard._functions", "check_variable_assignment"
+                    )
+                    target_varname = next(iter(targets[0]))
+                    node.value = Call(
+                        func_name,
+                        [
+                            node.value,
+                            target_varname,
+                            targets[0][target_varname],
+                            self._memo.get_memo_name(),
+                        ],
+                        [],
+                    )
+                elif targets:
+                    func_name = self._get_import(
+                        "typeguard._functions", "check_multi_variable_assignment"
+                    )
+                    targets_arg = List(
+                        [
+                            Dict(keys=list(target), values=list(target.values()))
+                            for target in targets
+                        ],
+                        ctx=Load(),
+                    )
+                    node.value = Call(
+                        func_name,
+                        [node.value, targets_arg, self._memo.get_memo_name()],
+                        [],
+                    )
+
+        return node
+
+    def visit_NamedExpr(self, node: NamedExpr) -> Any:
+        """This injects a type check into an assignment expression (a := foo())."""
+        self.generic_visit(node)
+
+        # Only instrument function-local assignments
+        if isinstance(self._memo.node, (FunctionDef, AsyncFunctionDef)) and isinstance(
+            node.target, Name
+        ):
+            self._memo.ignored_names.add(node.target.id)
+
+            # Bail out if no matching annotation is found
+            annotation = self._memo.variable_annotations.get(node.target.id)
+            if annotation is None:
+                return node
+
+            func_name = self._get_import(
+                "typeguard._functions", "check_variable_assignment"
+            )
+            node.value = Call(
+                func_name,
+                [
+                    node.value,
+                    Constant(node.target.id),
+                    annotation,
+                    self._memo.get_memo_name(),
+                ],
+                [],
+            )
+
+        return node
+
+    def visit_AugAssign(self, node: AugAssign) -> Any:
+        """
+        This injects a type check into an augmented assignment expression (a += 1).
+
+        """
+        self.generic_visit(node)
+
+        # Only instrument function-local assignments
+        if isinstance(self._memo.node, (FunctionDef, AsyncFunctionDef)) and isinstance(
+            node.target, Name
+        ):
+            # Bail out if no matching annotation is found
+            annotation = self._memo.variable_annotations.get(node.target.id)
+            if annotation is None:
+                return node
+
+            # Bail out if the operator is not found (newer Python version?)
+            try:
+                operator_func_name = aug_assign_functions[node.op.__class__]
+            except KeyError:
+                return node
+
+            operator_func = self._get_import("operator", operator_func_name)
+            operator_call = Call(
+                operator_func, [Name(node.target.id, ctx=Load()), node.value], []
+            )
+            check_call = Call(
+                self._get_import("typeguard._functions", "check_variable_assignment"),
+                [
+                    operator_call,
+                    Constant(node.target.id),
+                    annotation,
+                    self._memo.get_memo_name(),
+                ],
+                [],
+            )
+            return Assign(targets=[node.target], value=check_call)
+
+        return node
+
+    def visit_If(self, node: If) -> Any:
+        """
+        This blocks names from being collected from a module-level
+        "if typing.TYPE_CHECKING:" block, so that they won't be type checked.
+
+        """
+        self.generic_visit(node)
+
+        if (
+            self._memo is self._module_memo
+            and isinstance(node.test, Name)
+            and self._memo.name_matches(node.test, "typing.TYPE_CHECKING")
+        ):
+            collector = NameCollector()
+            collector.visit(node)
+            self._memo.ignored_names.update(collector.names)
+
+        return node
diff --git a/setuptools/_vendor/typeguard/_union_transformer.py b/setuptools/_vendor/typeguard/_union_transformer.py
new file mode 100644
index 0000000000..19617e6af5
--- /dev/null
+++ b/setuptools/_vendor/typeguard/_union_transformer.py
@@ -0,0 +1,55 @@
+"""
+Transforms lazily evaluated PEP 604 unions into typing.Unions, for compatibility with
+Python versions older than 3.10.
+"""
+
+from __future__ import annotations
+
+from ast import (
+    BinOp,
+    BitOr,
+    Index,
+    Load,
+    Name,
+    NodeTransformer,
+    Subscript,
+    fix_missing_locations,
+    parse,
+)
+from ast import Tuple as ASTTuple
+from types import CodeType
+from typing import Any, Dict, FrozenSet, List, Set, Tuple, Union
+
+type_substitutions = {
+    "dict": Dict,
+    "list": List,
+    "tuple": Tuple,
+    "set": Set,
+    "frozenset": FrozenSet,
+    "Union": Union,
+}
+
+
+class UnionTransformer(NodeTransformer):
+    def __init__(self, union_name: Name | None = None):
+        self.union_name = union_name or Name(id="Union", ctx=Load())
+
+    def visit_BinOp(self, node: BinOp) -> Any:
+        self.generic_visit(node)
+        if isinstance(node.op, BitOr):
+            return Subscript(
+                value=self.union_name,
+                slice=Index(
+                    ASTTuple(elts=[node.left, node.right], ctx=Load()), ctx=Load()
+                ),
+                ctx=Load(),
+            )
+
+        return node
+
+
+def compile_type_hint(hint: str) -> CodeType:
+    parsed = parse(hint, "", "eval")
+    UnionTransformer().visit(parsed)
+    fix_missing_locations(parsed)
+    return compile(parsed, "", "eval", flags=0)
diff --git a/setuptools/_vendor/typeguard/_utils.py b/setuptools/_vendor/typeguard/_utils.py
new file mode 100644
index 0000000000..9bcc8417f8
--- /dev/null
+++ b/setuptools/_vendor/typeguard/_utils.py
@@ -0,0 +1,173 @@
+from __future__ import annotations
+
+import inspect
+import sys
+from importlib import import_module
+from inspect import currentframe
+from types import CodeType, FrameType, FunctionType
+from typing import TYPE_CHECKING, Any, Callable, ForwardRef, Union, cast, final
+from weakref import WeakValueDictionary
+
+if TYPE_CHECKING:
+    from ._memo import TypeCheckMemo
+
+if sys.version_info >= (3, 13):
+    from typing import get_args, get_origin
+
+    def evaluate_forwardref(forwardref: ForwardRef, memo: TypeCheckMemo) -> Any:
+        return forwardref._evaluate(
+            memo.globals, memo.locals, type_params=(), recursive_guard=frozenset()
+        )
+
+elif sys.version_info >= (3, 10):
+    from typing import get_args, get_origin
+
+    def evaluate_forwardref(forwardref: ForwardRef, memo: TypeCheckMemo) -> Any:
+        return forwardref._evaluate(
+            memo.globals, memo.locals, recursive_guard=frozenset()
+        )
+
+else:
+    from typing_extensions import get_args, get_origin
+
+    evaluate_extra_args: tuple[frozenset[Any], ...] = (
+        (frozenset(),) if sys.version_info >= (3, 9) else ()
+    )
+
+    def evaluate_forwardref(forwardref: ForwardRef, memo: TypeCheckMemo) -> Any:
+        from ._union_transformer import compile_type_hint, type_substitutions
+
+        if not forwardref.__forward_evaluated__:
+            forwardref.__forward_code__ = compile_type_hint(forwardref.__forward_arg__)
+
+        try:
+            return forwardref._evaluate(memo.globals, memo.locals, *evaluate_extra_args)
+        except NameError:
+            if sys.version_info < (3, 10):
+                # Try again, with the type substitutions (list -> List etc.) in place
+                new_globals = memo.globals.copy()
+                new_globals.setdefault("Union", Union)
+                if sys.version_info < (3, 9):
+                    new_globals.update(type_substitutions)
+
+                return forwardref._evaluate(
+                    new_globals, memo.locals or new_globals, *evaluate_extra_args
+                )
+
+            raise
+
+
+_functions_map: WeakValueDictionary[CodeType, FunctionType] = WeakValueDictionary()
+
+
+def get_type_name(type_: Any) -> str:
+    name: str
+    for attrname in "__name__", "_name", "__forward_arg__":
+        candidate = getattr(type_, attrname, None)
+        if isinstance(candidate, str):
+            name = candidate
+            break
+    else:
+        origin = get_origin(type_)
+        candidate = getattr(origin, "_name", None)
+        if candidate is None:
+            candidate = type_.__class__.__name__.strip("_")
+
+        if isinstance(candidate, str):
+            name = candidate
+        else:
+            return "(unknown)"
+
+    args = get_args(type_)
+    if args:
+        if name == "Literal":
+            formatted_args = ", ".join(repr(arg) for arg in args)
+        else:
+            formatted_args = ", ".join(get_type_name(arg) for arg in args)
+
+        name += f"[{formatted_args}]"
+
+    module = getattr(type_, "__module__", None)
+    if module and module not in (None, "typing", "typing_extensions", "builtins"):
+        name = module + "." + name
+
+    return name
+
+
+def qualified_name(obj: Any, *, add_class_prefix: bool = False) -> str:
+    """
+    Return the qualified name (e.g. package.module.Type) for the given object.
+
+    Builtins and types from the :mod:`typing` package get special treatment by having
+    the module name stripped from the generated name.
+
+    """
+    if obj is None:
+        return "None"
+    elif inspect.isclass(obj):
+        prefix = "class " if add_class_prefix else ""
+        type_ = obj
+    else:
+        prefix = ""
+        type_ = type(obj)
+
+    module = type_.__module__
+    qualname = type_.__qualname__
+    name = qualname if module in ("typing", "builtins") else f"{module}.{qualname}"
+    return prefix + name
+
+
+def function_name(func: Callable[..., Any]) -> str:
+    """
+    Return the qualified name of the given function.
+
+    Builtins and types from the :mod:`typing` package get special treatment by having
+    the module name stripped from the generated name.
+
+    """
+    # For partial functions and objects with __call__ defined, __qualname__ does not
+    # exist
+    module = getattr(func, "__module__", "")
+    qualname = (module + ".") if module not in ("builtins", "") else ""
+    return qualname + getattr(func, "__qualname__", repr(func))
+
+
+def resolve_reference(reference: str) -> Any:
+    modulename, varname = reference.partition(":")[::2]
+    if not modulename or not varname:
+        raise ValueError(f"{reference!r} is not a module:varname reference")
+
+    obj = import_module(modulename)
+    for attr in varname.split("."):
+        obj = getattr(obj, attr)
+
+    return obj
+
+
+def is_method_of(obj: object, cls: type) -> bool:
+    return (
+        inspect.isfunction(obj)
+        and obj.__module__ == cls.__module__
+        and obj.__qualname__.startswith(cls.__qualname__ + ".")
+    )
+
+
+def get_stacklevel() -> int:
+    level = 1
+    frame = cast(FrameType, currentframe()).f_back
+    while frame and frame.f_globals.get("__name__", "").startswith("typeguard."):
+        level += 1
+        frame = frame.f_back
+
+    return level
+
+
+@final
+class Unset:
+    __slots__ = ()
+
+    def __repr__(self) -> str:
+        return ""
+
+
+unset = Unset()
diff --git a/setuptools/_vendor/typeguard/py.typed b/setuptools/_vendor/typeguard/py.typed
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/setuptools/_vendor/typing_extensions-4.12.2.dist-info/INSTALLER b/setuptools/_vendor/typing_extensions-4.12.2.dist-info/INSTALLER
new file mode 100644
index 0000000000..a1b589e38a
--- /dev/null
+++ b/setuptools/_vendor/typing_extensions-4.12.2.dist-info/INSTALLER
@@ -0,0 +1 @@
+pip
diff --git a/setuptools/_vendor/typing_extensions-4.12.2.dist-info/LICENSE b/setuptools/_vendor/typing_extensions-4.12.2.dist-info/LICENSE
new file mode 100644
index 0000000000..f26bcf4d2d
--- /dev/null
+++ b/setuptools/_vendor/typing_extensions-4.12.2.dist-info/LICENSE
@@ -0,0 +1,279 @@
+A. HISTORY OF THE SOFTWARE
+==========================
+
+Python was created in the early 1990s by Guido van Rossum at Stichting
+Mathematisch Centrum (CWI, see https://www.cwi.nl) in the Netherlands
+as a successor of a language called ABC.  Guido remains Python's
+principal author, although it includes many contributions from others.
+
+In 1995, Guido continued his work on Python at the Corporation for
+National Research Initiatives (CNRI, see https://www.cnri.reston.va.us)
+in Reston, Virginia where he released several versions of the
+software.
+
+In May 2000, Guido and the Python core development team moved to
+BeOpen.com to form the BeOpen PythonLabs team.  In October of the same
+year, the PythonLabs team moved to Digital Creations, which became
+Zope Corporation.  In 2001, the Python Software Foundation (PSF, see
+https://www.python.org/psf/) was formed, a non-profit organization
+created specifically to own Python-related Intellectual Property.
+Zope Corporation was a sponsoring member of the PSF.
+
+All Python releases are Open Source (see https://opensource.org for
+the Open Source Definition).  Historically, most, but not all, Python
+releases have also been GPL-compatible; the table below summarizes
+the various releases.
+
+    Release         Derived     Year        Owner       GPL-
+                    from                                compatible? (1)
+
+    0.9.0 thru 1.2              1991-1995   CWI         yes
+    1.3 thru 1.5.2  1.2         1995-1999   CNRI        yes
+    1.6             1.5.2       2000        CNRI        no
+    2.0             1.6         2000        BeOpen.com  no
+    1.6.1           1.6         2001        CNRI        yes (2)
+    2.1             2.0+1.6.1   2001        PSF         no
+    2.0.1           2.0+1.6.1   2001        PSF         yes
+    2.1.1           2.1+2.0.1   2001        PSF         yes
+    2.1.2           2.1.1       2002        PSF         yes
+    2.1.3           2.1.2       2002        PSF         yes
+    2.2 and above   2.1.1       2001-now    PSF         yes
+
+Footnotes:
+
+(1) GPL-compatible doesn't mean that we're distributing Python under
+    the GPL.  All Python licenses, unlike the GPL, let you distribute
+    a modified version without making your changes open source.  The
+    GPL-compatible licenses make it possible to combine Python with
+    other software that is released under the GPL; the others don't.
+
+(2) According to Richard Stallman, 1.6.1 is not GPL-compatible,
+    because its license has a choice of law clause.  According to
+    CNRI, however, Stallman's lawyer has told CNRI's lawyer that 1.6.1
+    is "not incompatible" with the GPL.
+
+Thanks to the many outside volunteers who have worked under Guido's
+direction to make these releases possible.
+
+
+B. TERMS AND CONDITIONS FOR ACCESSING OR OTHERWISE USING PYTHON
+===============================================================
+
+Python software and documentation are licensed under the
+Python Software Foundation License Version 2.
+
+Starting with Python 3.8.6, examples, recipes, and other code in
+the documentation are dual licensed under the PSF License Version 2
+and the Zero-Clause BSD license.
+
+Some software incorporated into Python is under different licenses.
+The licenses are listed with code falling under that license.
+
+
+PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2
+--------------------------------------------
+
+1. This LICENSE AGREEMENT is between the Python Software Foundation
+("PSF"), and the Individual or Organization ("Licensee") accessing and
+otherwise using this software ("Python") in source or binary form and
+its associated documentation.
+
+2. Subject to the terms and conditions of this License Agreement, PSF hereby
+grants Licensee a nonexclusive, royalty-free, world-wide license to reproduce,
+analyze, test, perform and/or display publicly, prepare derivative works,
+distribute, and otherwise use Python alone or in any derivative version,
+provided, however, that PSF's License Agreement and PSF's notice of copyright,
+i.e., "Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 Python Software Foundation;
+All Rights Reserved" are retained in Python alone or in any derivative version
+prepared by Licensee.
+
+3. In the event Licensee prepares a derivative work that is based on
+or incorporates Python or any part thereof, and wants to make
+the derivative work available to others as provided herein, then
+Licensee hereby agrees to include in any such work a brief summary of
+the changes made to Python.
+
+4. PSF is making Python available to Licensee on an "AS IS"
+basis.  PSF MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
+IMPLIED.  BY WAY OF EXAMPLE, BUT NOT LIMITATION, PSF MAKES NO AND
+DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
+FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON WILL NOT
+INFRINGE ANY THIRD PARTY RIGHTS.
+
+5. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON
+FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS
+A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON,
+OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
+
+6. This License Agreement will automatically terminate upon a material
+breach of its terms and conditions.
+
+7. Nothing in this License Agreement shall be deemed to create any
+relationship of agency, partnership, or joint venture between PSF and
+Licensee.  This License Agreement does not grant permission to use PSF
+trademarks or trade name in a trademark sense to endorse or promote
+products or services of Licensee, or any third party.
+
+8. By copying, installing or otherwise using Python, Licensee
+agrees to be bound by the terms and conditions of this License
+Agreement.
+
+
+BEOPEN.COM LICENSE AGREEMENT FOR PYTHON 2.0
+-------------------------------------------
+
+BEOPEN PYTHON OPEN SOURCE LICENSE AGREEMENT VERSION 1
+
+1. This LICENSE AGREEMENT is between BeOpen.com ("BeOpen"), having an
+office at 160 Saratoga Avenue, Santa Clara, CA 95051, and the
+Individual or Organization ("Licensee") accessing and otherwise using
+this software in source or binary form and its associated
+documentation ("the Software").
+
+2. Subject to the terms and conditions of this BeOpen Python License
+Agreement, BeOpen hereby grants Licensee a non-exclusive,
+royalty-free, world-wide license to reproduce, analyze, test, perform
+and/or display publicly, prepare derivative works, distribute, and
+otherwise use the Software alone or in any derivative version,
+provided, however, that the BeOpen Python License is retained in the
+Software, alone or in any derivative version prepared by Licensee.
+
+3. BeOpen is making the Software available to Licensee on an "AS IS"
+basis.  BEOPEN MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
+IMPLIED.  BY WAY OF EXAMPLE, BUT NOT LIMITATION, BEOPEN MAKES NO AND
+DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
+FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF THE SOFTWARE WILL NOT
+INFRINGE ANY THIRD PARTY RIGHTS.
+
+4. BEOPEN SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF THE
+SOFTWARE FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS
+AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THE SOFTWARE, OR ANY
+DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
+
+5. This License Agreement will automatically terminate upon a material
+breach of its terms and conditions.
+
+6. This License Agreement shall be governed by and interpreted in all
+respects by the law of the State of California, excluding conflict of
+law provisions.  Nothing in this License Agreement shall be deemed to
+create any relationship of agency, partnership, or joint venture
+between BeOpen and Licensee.  This License Agreement does not grant
+permission to use BeOpen trademarks or trade names in a trademark
+sense to endorse or promote products or services of Licensee, or any
+third party.  As an exception, the "BeOpen Python" logos available at
+http://www.pythonlabs.com/logos.html may be used according to the
+permissions granted on that web page.
+
+7. By copying, installing or otherwise using the software, Licensee
+agrees to be bound by the terms and conditions of this License
+Agreement.
+
+
+CNRI LICENSE AGREEMENT FOR PYTHON 1.6.1
+---------------------------------------
+
+1. This LICENSE AGREEMENT is between the Corporation for National
+Research Initiatives, having an office at 1895 Preston White Drive,
+Reston, VA 20191 ("CNRI"), and the Individual or Organization
+("Licensee") accessing and otherwise using Python 1.6.1 software in
+source or binary form and its associated documentation.
+
+2. Subject to the terms and conditions of this License Agreement, CNRI
+hereby grants Licensee a nonexclusive, royalty-free, world-wide
+license to reproduce, analyze, test, perform and/or display publicly,
+prepare derivative works, distribute, and otherwise use Python 1.6.1
+alone or in any derivative version, provided, however, that CNRI's
+License Agreement and CNRI's notice of copyright, i.e., "Copyright (c)
+1995-2001 Corporation for National Research Initiatives; All Rights
+Reserved" are retained in Python 1.6.1 alone or in any derivative
+version prepared by Licensee.  Alternately, in lieu of CNRI's License
+Agreement, Licensee may substitute the following text (omitting the
+quotes): "Python 1.6.1 is made available subject to the terms and
+conditions in CNRI's License Agreement.  This Agreement together with
+Python 1.6.1 may be located on the internet using the following
+unique, persistent identifier (known as a handle): 1895.22/1013.  This
+Agreement may also be obtained from a proxy server on the internet
+using the following URL: http://hdl.handle.net/1895.22/1013".
+
+3. In the event Licensee prepares a derivative work that is based on
+or incorporates Python 1.6.1 or any part thereof, and wants to make
+the derivative work available to others as provided herein, then
+Licensee hereby agrees to include in any such work a brief summary of
+the changes made to Python 1.6.1.
+
+4. CNRI is making Python 1.6.1 available to Licensee on an "AS IS"
+basis.  CNRI MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
+IMPLIED.  BY WAY OF EXAMPLE, BUT NOT LIMITATION, CNRI MAKES NO AND
+DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
+FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON 1.6.1 WILL NOT
+INFRINGE ANY THIRD PARTY RIGHTS.
+
+5. CNRI SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON
+1.6.1 FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS
+A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON 1.6.1,
+OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
+
+6. This License Agreement will automatically terminate upon a material
+breach of its terms and conditions.
+
+7. This License Agreement shall be governed by the federal
+intellectual property law of the United States, including without
+limitation the federal copyright law, and, to the extent such
+U.S. federal law does not apply, by the law of the Commonwealth of
+Virginia, excluding Virginia's conflict of law provisions.
+Notwithstanding the foregoing, with regard to derivative works based
+on Python 1.6.1 that incorporate non-separable material that was
+previously distributed under the GNU General Public License (GPL), the
+law of the Commonwealth of Virginia shall govern this License
+Agreement only as to issues arising under or with respect to
+Paragraphs 4, 5, and 7 of this License Agreement.  Nothing in this
+License Agreement shall be deemed to create any relationship of
+agency, partnership, or joint venture between CNRI and Licensee.  This
+License Agreement does not grant permission to use CNRI trademarks or
+trade name in a trademark sense to endorse or promote products or
+services of Licensee, or any third party.
+
+8. By clicking on the "ACCEPT" button where indicated, or by copying,
+installing or otherwise using Python 1.6.1, Licensee agrees to be
+bound by the terms and conditions of this License Agreement.
+
+        ACCEPT
+
+
+CWI LICENSE AGREEMENT FOR PYTHON 0.9.0 THROUGH 1.2
+--------------------------------------------------
+
+Copyright (c) 1991 - 1995, Stichting Mathematisch Centrum Amsterdam,
+The Netherlands.  All rights reserved.
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the name of Stichting Mathematisch
+Centrum or CWI not be used in advertising or publicity pertaining to
+distribution of the software without specific, written prior
+permission.
+
+STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
+THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
+FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+ZERO-CLAUSE BSD LICENSE FOR CODE IN THE PYTHON DOCUMENTATION
+----------------------------------------------------------------------
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
diff --git a/setuptools/_vendor/typing_extensions-4.12.2.dist-info/METADATA b/setuptools/_vendor/typing_extensions-4.12.2.dist-info/METADATA
new file mode 100644
index 0000000000..f15e2b3877
--- /dev/null
+++ b/setuptools/_vendor/typing_extensions-4.12.2.dist-info/METADATA
@@ -0,0 +1,67 @@
+Metadata-Version: 2.1
+Name: typing_extensions
+Version: 4.12.2
+Summary: Backported and Experimental Type Hints for Python 3.8+
+Keywords: annotations,backport,checker,checking,function,hinting,hints,type,typechecking,typehinting,typehints,typing
+Author-email: "Guido van Rossum, Jukka Lehtosalo, Łukasz Langa, Michael Lee" 
+Requires-Python: >=3.8
+Description-Content-Type: text/markdown
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Environment :: Console
+Classifier: Intended Audience :: Developers
+Classifier: License :: OSI Approved :: Python Software Foundation License
+Classifier: Operating System :: OS Independent
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3 :: Only
+Classifier: Programming Language :: Python :: 3.8
+Classifier: Programming Language :: Python :: 3.9
+Classifier: Programming Language :: Python :: 3.10
+Classifier: Programming Language :: Python :: 3.11
+Classifier: Programming Language :: Python :: 3.12
+Classifier: Programming Language :: Python :: 3.13
+Classifier: Topic :: Software Development
+Project-URL: Bug Tracker, https://github.com/python/typing_extensions/issues
+Project-URL: Changes, https://github.com/python/typing_extensions/blob/main/CHANGELOG.md
+Project-URL: Documentation, https://typing-extensions.readthedocs.io/
+Project-URL: Home, https://github.com/python/typing_extensions
+Project-URL: Q & A, https://github.com/python/typing/discussions
+Project-URL: Repository, https://github.com/python/typing_extensions
+
+# Typing Extensions
+
+[![Chat at https://gitter.im/python/typing](https://badges.gitter.im/python/typing.svg)](https://gitter.im/python/typing)
+
+[Documentation](https://typing-extensions.readthedocs.io/en/latest/#) –
+[PyPI](https://pypi.org/project/typing-extensions/)
+
+## Overview
+
+The `typing_extensions` module serves two related purposes:
+
+- Enable use of new type system features on older Python versions. For example,
+  `typing.TypeGuard` is new in Python 3.10, but `typing_extensions` allows
+  users on previous Python versions to use it too.
+- Enable experimentation with new type system PEPs before they are accepted and
+  added to the `typing` module.
+
+`typing_extensions` is treated specially by static type checkers such as
+mypy and pyright. Objects defined in `typing_extensions` are treated the same
+way as equivalent forms in `typing`.
+
+`typing_extensions` uses
+[Semantic Versioning](https://semver.org/). The
+major version will be incremented only for backwards-incompatible changes.
+Therefore, it's safe to depend
+on `typing_extensions` like this: `typing_extensions >=x.y, <(x+1)`,
+where `x.y` is the first version that includes all features you need.
+
+## Included items
+
+See [the documentation](https://typing-extensions.readthedocs.io/en/latest/#) for a
+complete listing of module contents.
+
+## Contributing
+
+See [CONTRIBUTING.md](https://github.com/python/typing_extensions/blob/main/CONTRIBUTING.md)
+for how to contribute to `typing_extensions`.
+
diff --git a/setuptools/_vendor/typing_extensions-4.12.2.dist-info/RECORD b/setuptools/_vendor/typing_extensions-4.12.2.dist-info/RECORD
new file mode 100644
index 0000000000..bc7b45334d
--- /dev/null
+++ b/setuptools/_vendor/typing_extensions-4.12.2.dist-info/RECORD
@@ -0,0 +1,7 @@
+__pycache__/typing_extensions.cpython-312.pyc,,
+typing_extensions-4.12.2.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4
+typing_extensions-4.12.2.dist-info/LICENSE,sha256=Oy-B_iHRgcSZxZolbI4ZaEVdZonSaaqFNzv7avQdo78,13936
+typing_extensions-4.12.2.dist-info/METADATA,sha256=BeUQIa8cnYbrjWx-N8TOznM9UGW5Gm2DicVpDtRA8W0,3018
+typing_extensions-4.12.2.dist-info/RECORD,,
+typing_extensions-4.12.2.dist-info/WHEEL,sha256=EZbGkh7Ie4PoZfRQ8I0ZuP9VklN_TvcZ6DSE5Uar4z4,81
+typing_extensions.py,sha256=gwekpyG9DVG3lxWKX4ni8u7nk3We5slG98mA9F3DJQw,134451
diff --git a/setuptools/_vendor/typing_extensions-4.12.2.dist-info/WHEEL b/setuptools/_vendor/typing_extensions-4.12.2.dist-info/WHEEL
new file mode 100644
index 0000000000..3b5e64b5e6
--- /dev/null
+++ b/setuptools/_vendor/typing_extensions-4.12.2.dist-info/WHEEL
@@ -0,0 +1,4 @@
+Wheel-Version: 1.0
+Generator: flit 3.9.0
+Root-Is-Purelib: true
+Tag: py3-none-any
diff --git a/setuptools/_vendor/typing_extensions.py b/setuptools/_vendor/typing_extensions.py
new file mode 100644
index 0000000000..dec429ca87
--- /dev/null
+++ b/setuptools/_vendor/typing_extensions.py
@@ -0,0 +1,3641 @@
+import abc
+import collections
+import collections.abc
+import contextlib
+import functools
+import inspect
+import operator
+import sys
+import types as _types
+import typing
+import warnings
+
+__all__ = [
+    # Super-special typing primitives.
+    'Any',
+    'ClassVar',
+    'Concatenate',
+    'Final',
+    'LiteralString',
+    'ParamSpec',
+    'ParamSpecArgs',
+    'ParamSpecKwargs',
+    'Self',
+    'Type',
+    'TypeVar',
+    'TypeVarTuple',
+    'Unpack',
+
+    # ABCs (from collections.abc).
+    'Awaitable',
+    'AsyncIterator',
+    'AsyncIterable',
+    'Coroutine',
+    'AsyncGenerator',
+    'AsyncContextManager',
+    'Buffer',
+    'ChainMap',
+
+    # Concrete collection types.
+    'ContextManager',
+    'Counter',
+    'Deque',
+    'DefaultDict',
+    'NamedTuple',
+    'OrderedDict',
+    'TypedDict',
+
+    # Structural checks, a.k.a. protocols.
+    'SupportsAbs',
+    'SupportsBytes',
+    'SupportsComplex',
+    'SupportsFloat',
+    'SupportsIndex',
+    'SupportsInt',
+    'SupportsRound',
+
+    # One-off things.
+    'Annotated',
+    'assert_never',
+    'assert_type',
+    'clear_overloads',
+    'dataclass_transform',
+    'deprecated',
+    'Doc',
+    'get_overloads',
+    'final',
+    'get_args',
+    'get_origin',
+    'get_original_bases',
+    'get_protocol_members',
+    'get_type_hints',
+    'IntVar',
+    'is_protocol',
+    'is_typeddict',
+    'Literal',
+    'NewType',
+    'overload',
+    'override',
+    'Protocol',
+    'reveal_type',
+    'runtime',
+    'runtime_checkable',
+    'Text',
+    'TypeAlias',
+    'TypeAliasType',
+    'TypeGuard',
+    'TypeIs',
+    'TYPE_CHECKING',
+    'Never',
+    'NoReturn',
+    'ReadOnly',
+    'Required',
+    'NotRequired',
+
+    # Pure aliases, have always been in typing
+    'AbstractSet',
+    'AnyStr',
+    'BinaryIO',
+    'Callable',
+    'Collection',
+    'Container',
+    'Dict',
+    'ForwardRef',
+    'FrozenSet',
+    'Generator',
+    'Generic',
+    'Hashable',
+    'IO',
+    'ItemsView',
+    'Iterable',
+    'Iterator',
+    'KeysView',
+    'List',
+    'Mapping',
+    'MappingView',
+    'Match',
+    'MutableMapping',
+    'MutableSequence',
+    'MutableSet',
+    'NoDefault',
+    'Optional',
+    'Pattern',
+    'Reversible',
+    'Sequence',
+    'Set',
+    'Sized',
+    'TextIO',
+    'Tuple',
+    'Union',
+    'ValuesView',
+    'cast',
+    'no_type_check',
+    'no_type_check_decorator',
+]
+
+# for backward compatibility
+PEP_560 = True
+GenericMeta = type
+_PEP_696_IMPLEMENTED = sys.version_info >= (3, 13, 0, "beta")
+
+# The functions below are modified copies of typing internal helpers.
+# They are needed by _ProtocolMeta and they provide support for PEP 646.
+
+
+class _Sentinel:
+    def __repr__(self):
+        return ""
+
+
+_marker = _Sentinel()
+
+
+if sys.version_info >= (3, 10):
+    def _should_collect_from_parameters(t):
+        return isinstance(
+            t, (typing._GenericAlias, _types.GenericAlias, _types.UnionType)
+        )
+elif sys.version_info >= (3, 9):
+    def _should_collect_from_parameters(t):
+        return isinstance(t, (typing._GenericAlias, _types.GenericAlias))
+else:
+    def _should_collect_from_parameters(t):
+        return isinstance(t, typing._GenericAlias) and not t._special
+
+
+NoReturn = typing.NoReturn
+
+# Some unconstrained type variables.  These are used by the container types.
+# (These are not for export.)
+T = typing.TypeVar('T')  # Any type.
+KT = typing.TypeVar('KT')  # Key type.
+VT = typing.TypeVar('VT')  # Value type.
+T_co = typing.TypeVar('T_co', covariant=True)  # Any type covariant containers.
+T_contra = typing.TypeVar('T_contra', contravariant=True)  # Ditto contravariant.
+
+
+if sys.version_info >= (3, 11):
+    from typing import Any
+else:
+
+    class _AnyMeta(type):
+        def __instancecheck__(self, obj):
+            if self is Any:
+                raise TypeError("typing_extensions.Any cannot be used with isinstance()")
+            return super().__instancecheck__(obj)
+
+        def __repr__(self):
+            if self is Any:
+                return "typing_extensions.Any"
+            return super().__repr__()
+
+    class Any(metaclass=_AnyMeta):
+        """Special type indicating an unconstrained type.
+        - Any is compatible with every type.
+        - Any assumed to have all methods.
+        - All values assumed to be instances of Any.
+        Note that all the above statements are true from the point of view of
+        static type checkers. At runtime, Any should not be used with instance
+        checks.
+        """
+        def __new__(cls, *args, **kwargs):
+            if cls is Any:
+                raise TypeError("Any cannot be instantiated")
+            return super().__new__(cls, *args, **kwargs)
+
+
+ClassVar = typing.ClassVar
+
+
+class _ExtensionsSpecialForm(typing._SpecialForm, _root=True):
+    def __repr__(self):
+        return 'typing_extensions.' + self._name
+
+
+Final = typing.Final
+
+if sys.version_info >= (3, 11):
+    final = typing.final
+else:
+    # @final exists in 3.8+, but we backport it for all versions
+    # before 3.11 to keep support for the __final__ attribute.
+    # See https://bugs.python.org/issue46342
+    def final(f):
+        """This decorator can be used to indicate to type checkers that
+        the decorated method cannot be overridden, and decorated class
+        cannot be subclassed. For example:
+
+            class Base:
+                @final
+                def done(self) -> None:
+                    ...
+            class Sub(Base):
+                def done(self) -> None:  # Error reported by type checker
+                    ...
+            @final
+            class Leaf:
+                ...
+            class Other(Leaf):  # Error reported by type checker
+                ...
+
+        There is no runtime checking of these properties. The decorator
+        sets the ``__final__`` attribute to ``True`` on the decorated object
+        to allow runtime introspection.
+        """
+        try:
+            f.__final__ = True
+        except (AttributeError, TypeError):
+            # Skip the attribute silently if it is not writable.
+            # AttributeError happens if the object has __slots__ or a
+            # read-only property, TypeError if it's a builtin class.
+            pass
+        return f
+
+
+def IntVar(name):
+    return typing.TypeVar(name)
+
+
+# A Literal bug was fixed in 3.11.0, 3.10.1 and 3.9.8
+if sys.version_info >= (3, 10, 1):
+    Literal = typing.Literal
+else:
+    def _flatten_literal_params(parameters):
+        """An internal helper for Literal creation: flatten Literals among parameters"""
+        params = []
+        for p in parameters:
+            if isinstance(p, _LiteralGenericAlias):
+                params.extend(p.__args__)
+            else:
+                params.append(p)
+        return tuple(params)
+
+    def _value_and_type_iter(params):
+        for p in params:
+            yield p, type(p)
+
+    class _LiteralGenericAlias(typing._GenericAlias, _root=True):
+        def __eq__(self, other):
+            if not isinstance(other, _LiteralGenericAlias):
+                return NotImplemented
+            these_args_deduped = set(_value_and_type_iter(self.__args__))
+            other_args_deduped = set(_value_and_type_iter(other.__args__))
+            return these_args_deduped == other_args_deduped
+
+        def __hash__(self):
+            return hash(frozenset(_value_and_type_iter(self.__args__)))
+
+    class _LiteralForm(_ExtensionsSpecialForm, _root=True):
+        def __init__(self, doc: str):
+            self._name = 'Literal'
+            self._doc = self.__doc__ = doc
+
+        def __getitem__(self, parameters):
+            if not isinstance(parameters, tuple):
+                parameters = (parameters,)
+
+            parameters = _flatten_literal_params(parameters)
+
+            val_type_pairs = list(_value_and_type_iter(parameters))
+            try:
+                deduped_pairs = set(val_type_pairs)
+            except TypeError:
+                # unhashable parameters
+                pass
+            else:
+                # similar logic to typing._deduplicate on Python 3.9+
+                if len(deduped_pairs) < len(val_type_pairs):
+                    new_parameters = []
+                    for pair in val_type_pairs:
+                        if pair in deduped_pairs:
+                            new_parameters.append(pair[0])
+                            deduped_pairs.remove(pair)
+                    assert not deduped_pairs, deduped_pairs
+                    parameters = tuple(new_parameters)
+
+            return _LiteralGenericAlias(self, parameters)
+
+    Literal = _LiteralForm(doc="""\
+                           A type that can be used to indicate to type checkers
+                           that the corresponding value has a value literally equivalent
+                           to the provided parameter. For example:
+
+                               var: Literal[4] = 4
+
+                           The type checker understands that 'var' is literally equal to
+                           the value 4 and no other value.
+
+                           Literal[...] cannot be subclassed. There is no runtime
+                           checking verifying that the parameter is actually a value
+                           instead of a type.""")
+
+
+_overload_dummy = typing._overload_dummy
+
+
+if hasattr(typing, "get_overloads"):  # 3.11+
+    overload = typing.overload
+    get_overloads = typing.get_overloads
+    clear_overloads = typing.clear_overloads
+else:
+    # {module: {qualname: {firstlineno: func}}}
+    _overload_registry = collections.defaultdict(
+        functools.partial(collections.defaultdict, dict)
+    )
+
+    def overload(func):
+        """Decorator for overloaded functions/methods.
+
+        In a stub file, place two or more stub definitions for the same
+        function in a row, each decorated with @overload.  For example:
+
+        @overload
+        def utf8(value: None) -> None: ...
+        @overload
+        def utf8(value: bytes) -> bytes: ...
+        @overload
+        def utf8(value: str) -> bytes: ...
+
+        In a non-stub file (i.e. a regular .py file), do the same but
+        follow it with an implementation.  The implementation should *not*
+        be decorated with @overload.  For example:
+
+        @overload
+        def utf8(value: None) -> None: ...
+        @overload
+        def utf8(value: bytes) -> bytes: ...
+        @overload
+        def utf8(value: str) -> bytes: ...
+        def utf8(value):
+            # implementation goes here
+
+        The overloads for a function can be retrieved at runtime using the
+        get_overloads() function.
+        """
+        # classmethod and staticmethod
+        f = getattr(func, "__func__", func)
+        try:
+            _overload_registry[f.__module__][f.__qualname__][
+                f.__code__.co_firstlineno
+            ] = func
+        except AttributeError:
+            # Not a normal function; ignore.
+            pass
+        return _overload_dummy
+
+    def get_overloads(func):
+        """Return all defined overloads for *func* as a sequence."""
+        # classmethod and staticmethod
+        f = getattr(func, "__func__", func)
+        if f.__module__ not in _overload_registry:
+            return []
+        mod_dict = _overload_registry[f.__module__]
+        if f.__qualname__ not in mod_dict:
+            return []
+        return list(mod_dict[f.__qualname__].values())
+
+    def clear_overloads():
+        """Clear all overloads in the registry."""
+        _overload_registry.clear()
+
+
+# This is not a real generic class.  Don't use outside annotations.
+Type = typing.Type
+
+# Various ABCs mimicking those in collections.abc.
+# A few are simply re-exported for completeness.
+Awaitable = typing.Awaitable
+Coroutine = typing.Coroutine
+AsyncIterable = typing.AsyncIterable
+AsyncIterator = typing.AsyncIterator
+Deque = typing.Deque
+DefaultDict = typing.DefaultDict
+OrderedDict = typing.OrderedDict
+Counter = typing.Counter
+ChainMap = typing.ChainMap
+Text = typing.Text
+TYPE_CHECKING = typing.TYPE_CHECKING
+
+
+if sys.version_info >= (3, 13, 0, "beta"):
+    from typing import AsyncContextManager, AsyncGenerator, ContextManager, Generator
+else:
+    def _is_dunder(attr):
+        return attr.startswith('__') and attr.endswith('__')
+
+    # Python <3.9 doesn't have typing._SpecialGenericAlias
+    _special_generic_alias_base = getattr(
+        typing, "_SpecialGenericAlias", typing._GenericAlias
+    )
+
+    class _SpecialGenericAlias(_special_generic_alias_base, _root=True):
+        def __init__(self, origin, nparams, *, inst=True, name=None, defaults=()):
+            if _special_generic_alias_base is typing._GenericAlias:
+                # Python <3.9
+                self.__origin__ = origin
+                self._nparams = nparams
+                super().__init__(origin, nparams, special=True, inst=inst, name=name)
+            else:
+                # Python >= 3.9
+                super().__init__(origin, nparams, inst=inst, name=name)
+            self._defaults = defaults
+
+        def __setattr__(self, attr, val):
+            allowed_attrs = {'_name', '_inst', '_nparams', '_defaults'}
+            if _special_generic_alias_base is typing._GenericAlias:
+                # Python <3.9
+                allowed_attrs.add("__origin__")
+            if _is_dunder(attr) or attr in allowed_attrs:
+                object.__setattr__(self, attr, val)
+            else:
+                setattr(self.__origin__, attr, val)
+
+        @typing._tp_cache
+        def __getitem__(self, params):
+            if not isinstance(params, tuple):
+                params = (params,)
+            msg = "Parameters to generic types must be types."
+            params = tuple(typing._type_check(p, msg) for p in params)
+            if (
+                self._defaults
+                and len(params) < self._nparams
+                and len(params) + len(self._defaults) >= self._nparams
+            ):
+                params = (*params, *self._defaults[len(params) - self._nparams:])
+            actual_len = len(params)
+
+            if actual_len != self._nparams:
+                if self._defaults:
+                    expected = f"at least {self._nparams - len(self._defaults)}"
+                else:
+                    expected = str(self._nparams)
+                if not self._nparams:
+                    raise TypeError(f"{self} is not a generic class")
+                raise TypeError(
+                    f"Too {'many' if actual_len > self._nparams else 'few'}"
+                    f" arguments for {self};"
+                    f" actual {actual_len}, expected {expected}"
+                )
+            return self.copy_with(params)
+
+    _NoneType = type(None)
+    Generator = _SpecialGenericAlias(
+        collections.abc.Generator, 3, defaults=(_NoneType, _NoneType)
+    )
+    AsyncGenerator = _SpecialGenericAlias(
+        collections.abc.AsyncGenerator, 2, defaults=(_NoneType,)
+    )
+    ContextManager = _SpecialGenericAlias(
+        contextlib.AbstractContextManager,
+        2,
+        name="ContextManager",
+        defaults=(typing.Optional[bool],)
+    )
+    AsyncContextManager = _SpecialGenericAlias(
+        contextlib.AbstractAsyncContextManager,
+        2,
+        name="AsyncContextManager",
+        defaults=(typing.Optional[bool],)
+    )
+
+
+_PROTO_ALLOWLIST = {
+    'collections.abc': [
+        'Callable', 'Awaitable', 'Iterable', 'Iterator', 'AsyncIterable',
+        'Hashable', 'Sized', 'Container', 'Collection', 'Reversible', 'Buffer',
+    ],
+    'contextlib': ['AbstractContextManager', 'AbstractAsyncContextManager'],
+    'typing_extensions': ['Buffer'],
+}
+
+
+_EXCLUDED_ATTRS = frozenset(typing.EXCLUDED_ATTRIBUTES) | {
+    "__match_args__", "__protocol_attrs__", "__non_callable_proto_members__",
+    "__final__",
+}
+
+
+def _get_protocol_attrs(cls):
+    attrs = set()
+    for base in cls.__mro__[:-1]:  # without object
+        if base.__name__ in {'Protocol', 'Generic'}:
+            continue
+        annotations = getattr(base, '__annotations__', {})
+        for attr in (*base.__dict__, *annotations):
+            if (not attr.startswith('_abc_') and attr not in _EXCLUDED_ATTRS):
+                attrs.add(attr)
+    return attrs
+
+
+def _caller(depth=2):
+    try:
+        return sys._getframe(depth).f_globals.get('__name__', '__main__')
+    except (AttributeError, ValueError):  # For platforms without _getframe()
+        return None
+
+
+# `__match_args__` attribute was removed from protocol members in 3.13,
+# we want to backport this change to older Python versions.
+if sys.version_info >= (3, 13):
+    Protocol = typing.Protocol
+else:
+    def _allow_reckless_class_checks(depth=3):
+        """Allow instance and class checks for special stdlib modules.
+        The abc and functools modules indiscriminately call isinstance() and
+        issubclass() on the whole MRO of a user class, which may contain protocols.
+        """
+        return _caller(depth) in {'abc', 'functools', None}
+
+    def _no_init(self, *args, **kwargs):
+        if type(self)._is_protocol:
+            raise TypeError('Protocols cannot be instantiated')
+
+    def _type_check_issubclass_arg_1(arg):
+        """Raise TypeError if `arg` is not an instance of `type`
+        in `issubclass(arg, )`.
+
+        In most cases, this is verified by type.__subclasscheck__.
+        Checking it again unnecessarily would slow down issubclass() checks,
+        so, we don't perform this check unless we absolutely have to.
+
+        For various error paths, however,
+        we want to ensure that *this* error message is shown to the user
+        where relevant, rather than a typing.py-specific error message.
+        """
+        if not isinstance(arg, type):
+            # Same error message as for issubclass(1, int).
+            raise TypeError('issubclass() arg 1 must be a class')
+
+    # Inheriting from typing._ProtocolMeta isn't actually desirable,
+    # but is necessary to allow typing.Protocol and typing_extensions.Protocol
+    # to mix without getting TypeErrors about "metaclass conflict"
+    class _ProtocolMeta(type(typing.Protocol)):
+        # This metaclass is somewhat unfortunate,
+        # but is necessary for several reasons...
+        #
+        # NOTE: DO NOT call super() in any methods in this class
+        # That would call the methods on typing._ProtocolMeta on Python 3.8-3.11
+        # and those are slow
+        def __new__(mcls, name, bases, namespace, **kwargs):
+            if name == "Protocol" and len(bases) < 2:
+                pass
+            elif {Protocol, typing.Protocol} & set(bases):
+                for base in bases:
+                    if not (
+                        base in {object, typing.Generic, Protocol, typing.Protocol}
+                        or base.__name__ in _PROTO_ALLOWLIST.get(base.__module__, [])
+                        or is_protocol(base)
+                    ):
+                        raise TypeError(
+                            f"Protocols can only inherit from other protocols, "
+                            f"got {base!r}"
+                        )
+            return abc.ABCMeta.__new__(mcls, name, bases, namespace, **kwargs)
+
+        def __init__(cls, *args, **kwargs):
+            abc.ABCMeta.__init__(cls, *args, **kwargs)
+            if getattr(cls, "_is_protocol", False):
+                cls.__protocol_attrs__ = _get_protocol_attrs(cls)
+
+        def __subclasscheck__(cls, other):
+            if cls is Protocol:
+                return type.__subclasscheck__(cls, other)
+            if (
+                getattr(cls, '_is_protocol', False)
+                and not _allow_reckless_class_checks()
+            ):
+                if not getattr(cls, '_is_runtime_protocol', False):
+                    _type_check_issubclass_arg_1(other)
+                    raise TypeError(
+                        "Instance and class checks can only be used with "
+                        "@runtime_checkable protocols"
+                    )
+                if (
+                    # this attribute is set by @runtime_checkable:
+                    cls.__non_callable_proto_members__
+                    and cls.__dict__.get("__subclasshook__") is _proto_hook
+                ):
+                    _type_check_issubclass_arg_1(other)
+                    non_method_attrs = sorted(cls.__non_callable_proto_members__)
+                    raise TypeError(
+                        "Protocols with non-method members don't support issubclass()."
+                        f" Non-method members: {str(non_method_attrs)[1:-1]}."
+                    )
+            return abc.ABCMeta.__subclasscheck__(cls, other)
+
+        def __instancecheck__(cls, instance):
+            # We need this method for situations where attributes are
+            # assigned in __init__.
+            if cls is Protocol:
+                return type.__instancecheck__(cls, instance)
+            if not getattr(cls, "_is_protocol", False):
+                # i.e., it's a concrete subclass of a protocol
+                return abc.ABCMeta.__instancecheck__(cls, instance)
+
+            if (
+                not getattr(cls, '_is_runtime_protocol', False) and
+                not _allow_reckless_class_checks()
+            ):
+                raise TypeError("Instance and class checks can only be used with"
+                                " @runtime_checkable protocols")
+
+            if abc.ABCMeta.__instancecheck__(cls, instance):
+                return True
+
+            for attr in cls.__protocol_attrs__:
+                try:
+                    val = inspect.getattr_static(instance, attr)
+                except AttributeError:
+                    break
+                # this attribute is set by @runtime_checkable:
+                if val is None and attr not in cls.__non_callable_proto_members__:
+                    break
+            else:
+                return True
+
+            return False
+
+        def __eq__(cls, other):
+            # Hack so that typing.Generic.__class_getitem__
+            # treats typing_extensions.Protocol
+            # as equivalent to typing.Protocol
+            if abc.ABCMeta.__eq__(cls, other) is True:
+                return True
+            return cls is Protocol and other is typing.Protocol
+
+        # This has to be defined, or the abc-module cache
+        # complains about classes with this metaclass being unhashable,
+        # if we define only __eq__!
+        def __hash__(cls) -> int:
+            return type.__hash__(cls)
+
+    @classmethod
+    def _proto_hook(cls, other):
+        if not cls.__dict__.get('_is_protocol', False):
+            return NotImplemented
+
+        for attr in cls.__protocol_attrs__:
+            for base in other.__mro__:
+                # Check if the members appears in the class dictionary...
+                if attr in base.__dict__:
+                    if base.__dict__[attr] is None:
+                        return NotImplemented
+                    break
+
+                # ...or in annotations, if it is a sub-protocol.
+                annotations = getattr(base, '__annotations__', {})
+                if (
+                    isinstance(annotations, collections.abc.Mapping)
+                    and attr in annotations
+                    and is_protocol(other)
+                ):
+                    break
+            else:
+                return NotImplemented
+        return True
+
+    class Protocol(typing.Generic, metaclass=_ProtocolMeta):
+        __doc__ = typing.Protocol.__doc__
+        __slots__ = ()
+        _is_protocol = True
+        _is_runtime_protocol = False
+
+        def __init_subclass__(cls, *args, **kwargs):
+            super().__init_subclass__(*args, **kwargs)
+
+            # Determine if this is a protocol or a concrete subclass.
+            if not cls.__dict__.get('_is_protocol', False):
+                cls._is_protocol = any(b is Protocol for b in cls.__bases__)
+
+            # Set (or override) the protocol subclass hook.
+            if '__subclasshook__' not in cls.__dict__:
+                cls.__subclasshook__ = _proto_hook
+
+            # Prohibit instantiation for protocol classes
+            if cls._is_protocol and cls.__init__ is Protocol.__init__:
+                cls.__init__ = _no_init
+
+
+if sys.version_info >= (3, 13):
+    runtime_checkable = typing.runtime_checkable
+else:
+    def runtime_checkable(cls):
+        """Mark a protocol class as a runtime protocol.
+
+        Such protocol can be used with isinstance() and issubclass().
+        Raise TypeError if applied to a non-protocol class.
+        This allows a simple-minded structural check very similar to
+        one trick ponies in collections.abc such as Iterable.
+
+        For example::
+
+            @runtime_checkable
+            class Closable(Protocol):
+                def close(self): ...
+
+            assert isinstance(open('/some/file'), Closable)
+
+        Warning: this will check only the presence of the required methods,
+        not their type signatures!
+        """
+        if not issubclass(cls, typing.Generic) or not getattr(cls, '_is_protocol', False):
+            raise TypeError(f'@runtime_checkable can be only applied to protocol classes,'
+                            f' got {cls!r}')
+        cls._is_runtime_protocol = True
+
+        # typing.Protocol classes on <=3.11 break if we execute this block,
+        # because typing.Protocol classes on <=3.11 don't have a
+        # `__protocol_attrs__` attribute, and this block relies on the
+        # `__protocol_attrs__` attribute. Meanwhile, typing.Protocol classes on 3.12.2+
+        # break if we *don't* execute this block, because *they* assume that all
+        # protocol classes have a `__non_callable_proto_members__` attribute
+        # (which this block sets)
+        if isinstance(cls, _ProtocolMeta) or sys.version_info >= (3, 12, 2):
+            # PEP 544 prohibits using issubclass()
+            # with protocols that have non-method members.
+            # See gh-113320 for why we compute this attribute here,
+            # rather than in `_ProtocolMeta.__init__`
+            cls.__non_callable_proto_members__ = set()
+            for attr in cls.__protocol_attrs__:
+                try:
+                    is_callable = callable(getattr(cls, attr, None))
+                except Exception as e:
+                    raise TypeError(
+                        f"Failed to determine whether protocol member {attr!r} "
+                        "is a method member"
+                    ) from e
+                else:
+                    if not is_callable:
+                        cls.__non_callable_proto_members__.add(attr)
+
+        return cls
+
+
+# The "runtime" alias exists for backwards compatibility.
+runtime = runtime_checkable
+
+
+# Our version of runtime-checkable protocols is faster on Python 3.8-3.11
+if sys.version_info >= (3, 12):
+    SupportsInt = typing.SupportsInt
+    SupportsFloat = typing.SupportsFloat
+    SupportsComplex = typing.SupportsComplex
+    SupportsBytes = typing.SupportsBytes
+    SupportsIndex = typing.SupportsIndex
+    SupportsAbs = typing.SupportsAbs
+    SupportsRound = typing.SupportsRound
+else:
+    @runtime_checkable
+    class SupportsInt(Protocol):
+        """An ABC with one abstract method __int__."""
+        __slots__ = ()
+
+        @abc.abstractmethod
+        def __int__(self) -> int:
+            pass
+
+    @runtime_checkable
+    class SupportsFloat(Protocol):
+        """An ABC with one abstract method __float__."""
+        __slots__ = ()
+
+        @abc.abstractmethod
+        def __float__(self) -> float:
+            pass
+
+    @runtime_checkable
+    class SupportsComplex(Protocol):
+        """An ABC with one abstract method __complex__."""
+        __slots__ = ()
+
+        @abc.abstractmethod
+        def __complex__(self) -> complex:
+            pass
+
+    @runtime_checkable
+    class SupportsBytes(Protocol):
+        """An ABC with one abstract method __bytes__."""
+        __slots__ = ()
+
+        @abc.abstractmethod
+        def __bytes__(self) -> bytes:
+            pass
+
+    @runtime_checkable
+    class SupportsIndex(Protocol):
+        __slots__ = ()
+
+        @abc.abstractmethod
+        def __index__(self) -> int:
+            pass
+
+    @runtime_checkable
+    class SupportsAbs(Protocol[T_co]):
+        """
+        An ABC with one abstract method __abs__ that is covariant in its return type.
+        """
+        __slots__ = ()
+
+        @abc.abstractmethod
+        def __abs__(self) -> T_co:
+            pass
+
+    @runtime_checkable
+    class SupportsRound(Protocol[T_co]):
+        """
+        An ABC with one abstract method __round__ that is covariant in its return type.
+        """
+        __slots__ = ()
+
+        @abc.abstractmethod
+        def __round__(self, ndigits: int = 0) -> T_co:
+            pass
+
+
+def _ensure_subclassable(mro_entries):
+    def inner(func):
+        if sys.implementation.name == "pypy" and sys.version_info < (3, 9):
+            cls_dict = {
+                "__call__": staticmethod(func),
+                "__mro_entries__": staticmethod(mro_entries)
+            }
+            t = type(func.__name__, (), cls_dict)
+            return functools.update_wrapper(t(), func)
+        else:
+            func.__mro_entries__ = mro_entries
+            return func
+    return inner
+
+
+# Update this to something like >=3.13.0b1 if and when
+# PEP 728 is implemented in CPython
+_PEP_728_IMPLEMENTED = False
+
+if _PEP_728_IMPLEMENTED:
+    # The standard library TypedDict in Python 3.8 does not store runtime information
+    # about which (if any) keys are optional.  See https://bugs.python.org/issue38834
+    # The standard library TypedDict in Python 3.9.0/1 does not honour the "total"
+    # keyword with old-style TypedDict().  See https://bugs.python.org/issue42059
+    # The standard library TypedDict below Python 3.11 does not store runtime
+    # information about optional and required keys when using Required or NotRequired.
+    # Generic TypedDicts are also impossible using typing.TypedDict on Python <3.11.
+    # Aaaand on 3.12 we add __orig_bases__ to TypedDict
+    # to enable better runtime introspection.
+    # On 3.13 we deprecate some odd ways of creating TypedDicts.
+    # Also on 3.13, PEP 705 adds the ReadOnly[] qualifier.
+    # PEP 728 (still pending) makes more changes.
+    TypedDict = typing.TypedDict
+    _TypedDictMeta = typing._TypedDictMeta
+    is_typeddict = typing.is_typeddict
+else:
+    # 3.10.0 and later
+    _TAKES_MODULE = "module" in inspect.signature(typing._type_check).parameters
+
+    def _get_typeddict_qualifiers(annotation_type):
+        while True:
+            annotation_origin = get_origin(annotation_type)
+            if annotation_origin is Annotated:
+                annotation_args = get_args(annotation_type)
+                if annotation_args:
+                    annotation_type = annotation_args[0]
+                else:
+                    break
+            elif annotation_origin is Required:
+                yield Required
+                annotation_type, = get_args(annotation_type)
+            elif annotation_origin is NotRequired:
+                yield NotRequired
+                annotation_type, = get_args(annotation_type)
+            elif annotation_origin is ReadOnly:
+                yield ReadOnly
+                annotation_type, = get_args(annotation_type)
+            else:
+                break
+
+    class _TypedDictMeta(type):
+        def __new__(cls, name, bases, ns, *, total=True, closed=False):
+            """Create new typed dict class object.
+
+            This method is called when TypedDict is subclassed,
+            or when TypedDict is instantiated. This way
+            TypedDict supports all three syntax forms described in its docstring.
+            Subclasses and instances of TypedDict return actual dictionaries.
+            """
+            for base in bases:
+                if type(base) is not _TypedDictMeta and base is not typing.Generic:
+                    raise TypeError('cannot inherit from both a TypedDict type '
+                                    'and a non-TypedDict base class')
+
+            if any(issubclass(b, typing.Generic) for b in bases):
+                generic_base = (typing.Generic,)
+            else:
+                generic_base = ()
+
+            # typing.py generally doesn't let you inherit from plain Generic, unless
+            # the name of the class happens to be "Protocol"
+            tp_dict = type.__new__(_TypedDictMeta, "Protocol", (*generic_base, dict), ns)
+            tp_dict.__name__ = name
+            if tp_dict.__qualname__ == "Protocol":
+                tp_dict.__qualname__ = name
+
+            if not hasattr(tp_dict, '__orig_bases__'):
+                tp_dict.__orig_bases__ = bases
+
+            annotations = {}
+            if "__annotations__" in ns:
+                own_annotations = ns["__annotations__"]
+            elif "__annotate__" in ns:
+                # TODO: Use inspect.VALUE here, and make the annotations lazily evaluated
+                own_annotations = ns["__annotate__"](1)
+            else:
+                own_annotations = {}
+            msg = "TypedDict('Name', {f0: t0, f1: t1, ...}); each t must be a type"
+            if _TAKES_MODULE:
+                own_annotations = {
+                    n: typing._type_check(tp, msg, module=tp_dict.__module__)
+                    for n, tp in own_annotations.items()
+                }
+            else:
+                own_annotations = {
+                    n: typing._type_check(tp, msg)
+                    for n, tp in own_annotations.items()
+                }
+            required_keys = set()
+            optional_keys = set()
+            readonly_keys = set()
+            mutable_keys = set()
+            extra_items_type = None
+
+            for base in bases:
+                base_dict = base.__dict__
+
+                annotations.update(base_dict.get('__annotations__', {}))
+                required_keys.update(base_dict.get('__required_keys__', ()))
+                optional_keys.update(base_dict.get('__optional_keys__', ()))
+                readonly_keys.update(base_dict.get('__readonly_keys__', ()))
+                mutable_keys.update(base_dict.get('__mutable_keys__', ()))
+                base_extra_items_type = base_dict.get('__extra_items__', None)
+                if base_extra_items_type is not None:
+                    extra_items_type = base_extra_items_type
+
+            if closed and extra_items_type is None:
+                extra_items_type = Never
+            if closed and "__extra_items__" in own_annotations:
+                annotation_type = own_annotations.pop("__extra_items__")
+                qualifiers = set(_get_typeddict_qualifiers(annotation_type))
+                if Required in qualifiers:
+                    raise TypeError(
+                        "Special key __extra_items__ does not support "
+                        "Required"
+                    )
+                if NotRequired in qualifiers:
+                    raise TypeError(
+                        "Special key __extra_items__ does not support "
+                        "NotRequired"
+                    )
+                extra_items_type = annotation_type
+
+            annotations.update(own_annotations)
+            for annotation_key, annotation_type in own_annotations.items():
+                qualifiers = set(_get_typeddict_qualifiers(annotation_type))
+
+                if Required in qualifiers:
+                    required_keys.add(annotation_key)
+                elif NotRequired in qualifiers:
+                    optional_keys.add(annotation_key)
+                elif total:
+                    required_keys.add(annotation_key)
+                else:
+                    optional_keys.add(annotation_key)
+                if ReadOnly in qualifiers:
+                    mutable_keys.discard(annotation_key)
+                    readonly_keys.add(annotation_key)
+                else:
+                    mutable_keys.add(annotation_key)
+                    readonly_keys.discard(annotation_key)
+
+            tp_dict.__annotations__ = annotations
+            tp_dict.__required_keys__ = frozenset(required_keys)
+            tp_dict.__optional_keys__ = frozenset(optional_keys)
+            tp_dict.__readonly_keys__ = frozenset(readonly_keys)
+            tp_dict.__mutable_keys__ = frozenset(mutable_keys)
+            if not hasattr(tp_dict, '__total__'):
+                tp_dict.__total__ = total
+            tp_dict.__closed__ = closed
+            tp_dict.__extra_items__ = extra_items_type
+            return tp_dict
+
+        __call__ = dict  # static method
+
+        def __subclasscheck__(cls, other):
+            # Typed dicts are only for static structural subtyping.
+            raise TypeError('TypedDict does not support instance and class checks')
+
+        __instancecheck__ = __subclasscheck__
+
+    _TypedDict = type.__new__(_TypedDictMeta, 'TypedDict', (), {})
+
+    @_ensure_subclassable(lambda bases: (_TypedDict,))
+    def TypedDict(typename, fields=_marker, /, *, total=True, closed=False, **kwargs):
+        """A simple typed namespace. At runtime it is equivalent to a plain dict.
+
+        TypedDict creates a dictionary type such that a type checker will expect all
+        instances to have a certain set of keys, where each key is
+        associated with a value of a consistent type. This expectation
+        is not checked at runtime.
+
+        Usage::
+
+            class Point2D(TypedDict):
+                x: int
+                y: int
+                label: str
+
+            a: Point2D = {'x': 1, 'y': 2, 'label': 'good'}  # OK
+            b: Point2D = {'z': 3, 'label': 'bad'}           # Fails type check
+
+            assert Point2D(x=1, y=2, label='first') == dict(x=1, y=2, label='first')
+
+        The type info can be accessed via the Point2D.__annotations__ dict, and
+        the Point2D.__required_keys__ and Point2D.__optional_keys__ frozensets.
+        TypedDict supports an additional equivalent form::
+
+            Point2D = TypedDict('Point2D', {'x': int, 'y': int, 'label': str})
+
+        By default, all keys must be present in a TypedDict. It is possible
+        to override this by specifying totality::
+
+            class Point2D(TypedDict, total=False):
+                x: int
+                y: int
+
+        This means that a Point2D TypedDict can have any of the keys omitted. A type
+        checker is only expected to support a literal False or True as the value of
+        the total argument. True is the default, and makes all items defined in the
+        class body be required.
+
+        The Required and NotRequired special forms can also be used to mark
+        individual keys as being required or not required::
+
+            class Point2D(TypedDict):
+                x: int  # the "x" key must always be present (Required is the default)
+                y: NotRequired[int]  # the "y" key can be omitted
+
+        See PEP 655 for more details on Required and NotRequired.
+        """
+        if fields is _marker or fields is None:
+            if fields is _marker:
+                deprecated_thing = "Failing to pass a value for the 'fields' parameter"
+            else:
+                deprecated_thing = "Passing `None` as the 'fields' parameter"
+
+            example = f"`{typename} = TypedDict({typename!r}, {{}})`"
+            deprecation_msg = (
+                f"{deprecated_thing} is deprecated and will be disallowed in "
+                "Python 3.15. To create a TypedDict class with 0 fields "
+                "using the functional syntax, pass an empty dictionary, e.g. "
+            ) + example + "."
+            warnings.warn(deprecation_msg, DeprecationWarning, stacklevel=2)
+            if closed is not False and closed is not True:
+                kwargs["closed"] = closed
+                closed = False
+            fields = kwargs
+        elif kwargs:
+            raise TypeError("TypedDict takes either a dict or keyword arguments,"
+                            " but not both")
+        if kwargs:
+            if sys.version_info >= (3, 13):
+                raise TypeError("TypedDict takes no keyword arguments")
+            warnings.warn(
+                "The kwargs-based syntax for TypedDict definitions is deprecated "
+                "in Python 3.11, will be removed in Python 3.13, and may not be "
+                "understood by third-party type checkers.",
+                DeprecationWarning,
+                stacklevel=2,
+            )
+
+        ns = {'__annotations__': dict(fields)}
+        module = _caller()
+        if module is not None:
+            # Setting correct module is necessary to make typed dict classes pickleable.
+            ns['__module__'] = module
+
+        td = _TypedDictMeta(typename, (), ns, total=total, closed=closed)
+        td.__orig_bases__ = (TypedDict,)
+        return td
+
+    if hasattr(typing, "_TypedDictMeta"):
+        _TYPEDDICT_TYPES = (typing._TypedDictMeta, _TypedDictMeta)
+    else:
+        _TYPEDDICT_TYPES = (_TypedDictMeta,)
+
+    def is_typeddict(tp):
+        """Check if an annotation is a TypedDict class
+
+        For example::
+            class Film(TypedDict):
+                title: str
+                year: int
+
+            is_typeddict(Film)  # => True
+            is_typeddict(Union[list, str])  # => False
+        """
+        # On 3.8, this would otherwise return True
+        if hasattr(typing, "TypedDict") and tp is typing.TypedDict:
+            return False
+        return isinstance(tp, _TYPEDDICT_TYPES)
+
+
+if hasattr(typing, "assert_type"):
+    assert_type = typing.assert_type
+
+else:
+    def assert_type(val, typ, /):
+        """Assert (to the type checker) that the value is of the given type.
+
+        When the type checker encounters a call to assert_type(), it
+        emits an error if the value is not of the specified type::
+
+            def greet(name: str) -> None:
+                assert_type(name, str)  # ok
+                assert_type(name, int)  # type checker error
+
+        At runtime this returns the first argument unchanged and otherwise
+        does nothing.
+        """
+        return val
+
+
+if hasattr(typing, "ReadOnly"):  # 3.13+
+    get_type_hints = typing.get_type_hints
+else:  # <=3.13
+    # replaces _strip_annotations()
+    def _strip_extras(t):
+        """Strips Annotated, Required and NotRequired from a given type."""
+        if isinstance(t, _AnnotatedAlias):
+            return _strip_extras(t.__origin__)
+        if hasattr(t, "__origin__") and t.__origin__ in (Required, NotRequired, ReadOnly):
+            return _strip_extras(t.__args__[0])
+        if isinstance(t, typing._GenericAlias):
+            stripped_args = tuple(_strip_extras(a) for a in t.__args__)
+            if stripped_args == t.__args__:
+                return t
+            return t.copy_with(stripped_args)
+        if hasattr(_types, "GenericAlias") and isinstance(t, _types.GenericAlias):
+            stripped_args = tuple(_strip_extras(a) for a in t.__args__)
+            if stripped_args == t.__args__:
+                return t
+            return _types.GenericAlias(t.__origin__, stripped_args)
+        if hasattr(_types, "UnionType") and isinstance(t, _types.UnionType):
+            stripped_args = tuple(_strip_extras(a) for a in t.__args__)
+            if stripped_args == t.__args__:
+                return t
+            return functools.reduce(operator.or_, stripped_args)
+
+        return t
+
+    def get_type_hints(obj, globalns=None, localns=None, include_extras=False):
+        """Return type hints for an object.
+
+        This is often the same as obj.__annotations__, but it handles
+        forward references encoded as string literals, adds Optional[t] if a
+        default value equal to None is set and recursively replaces all
+        'Annotated[T, ...]', 'Required[T]' or 'NotRequired[T]' with 'T'
+        (unless 'include_extras=True').
+
+        The argument may be a module, class, method, or function. The annotations
+        are returned as a dictionary. For classes, annotations include also
+        inherited members.
+
+        TypeError is raised if the argument is not of a type that can contain
+        annotations, and an empty dictionary is returned if no annotations are
+        present.
+
+        BEWARE -- the behavior of globalns and localns is counterintuitive
+        (unless you are familiar with how eval() and exec() work).  The
+        search order is locals first, then globals.
+
+        - If no dict arguments are passed, an attempt is made to use the
+          globals from obj (or the respective module's globals for classes),
+          and these are also used as the locals.  If the object does not appear
+          to have globals, an empty dictionary is used.
+
+        - If one dict argument is passed, it is used for both globals and
+          locals.
+
+        - If two dict arguments are passed, they specify globals and
+          locals, respectively.
+        """
+        if hasattr(typing, "Annotated"):  # 3.9+
+            hint = typing.get_type_hints(
+                obj, globalns=globalns, localns=localns, include_extras=True
+            )
+        else:  # 3.8
+            hint = typing.get_type_hints(obj, globalns=globalns, localns=localns)
+        if include_extras:
+            return hint
+        return {k: _strip_extras(t) for k, t in hint.items()}
+
+
+# Python 3.9+ has PEP 593 (Annotated)
+if hasattr(typing, 'Annotated'):
+    Annotated = typing.Annotated
+    # Not exported and not a public API, but needed for get_origin() and get_args()
+    # to work.
+    _AnnotatedAlias = typing._AnnotatedAlias
+# 3.8
+else:
+    class _AnnotatedAlias(typing._GenericAlias, _root=True):
+        """Runtime representation of an annotated type.
+
+        At its core 'Annotated[t, dec1, dec2, ...]' is an alias for the type 't'
+        with extra annotations. The alias behaves like a normal typing alias,
+        instantiating is the same as instantiating the underlying type, binding
+        it to types is also the same.
+        """
+        def __init__(self, origin, metadata):
+            if isinstance(origin, _AnnotatedAlias):
+                metadata = origin.__metadata__ + metadata
+                origin = origin.__origin__
+            super().__init__(origin, origin)
+            self.__metadata__ = metadata
+
+        def copy_with(self, params):
+            assert len(params) == 1
+            new_type = params[0]
+            return _AnnotatedAlias(new_type, self.__metadata__)
+
+        def __repr__(self):
+            return (f"typing_extensions.Annotated[{typing._type_repr(self.__origin__)}, "
+                    f"{', '.join(repr(a) for a in self.__metadata__)}]")
+
+        def __reduce__(self):
+            return operator.getitem, (
+                Annotated, (self.__origin__, *self.__metadata__)
+            )
+
+        def __eq__(self, other):
+            if not isinstance(other, _AnnotatedAlias):
+                return NotImplemented
+            if self.__origin__ != other.__origin__:
+                return False
+            return self.__metadata__ == other.__metadata__
+
+        def __hash__(self):
+            return hash((self.__origin__, self.__metadata__))
+
+    class Annotated:
+        """Add context specific metadata to a type.
+
+        Example: Annotated[int, runtime_check.Unsigned] indicates to the
+        hypothetical runtime_check module that this type is an unsigned int.
+        Every other consumer of this type can ignore this metadata and treat
+        this type as int.
+
+        The first argument to Annotated must be a valid type (and will be in
+        the __origin__ field), the remaining arguments are kept as a tuple in
+        the __extra__ field.
+
+        Details:
+
+        - It's an error to call `Annotated` with less than two arguments.
+        - Nested Annotated are flattened::
+
+            Annotated[Annotated[T, Ann1, Ann2], Ann3] == Annotated[T, Ann1, Ann2, Ann3]
+
+        - Instantiating an annotated type is equivalent to instantiating the
+        underlying type::
+
+            Annotated[C, Ann1](5) == C(5)
+
+        - Annotated can be used as a generic type alias::
+
+            Optimized = Annotated[T, runtime.Optimize()]
+            Optimized[int] == Annotated[int, runtime.Optimize()]
+
+            OptimizedList = Annotated[List[T], runtime.Optimize()]
+            OptimizedList[int] == Annotated[List[int], runtime.Optimize()]
+        """
+
+        __slots__ = ()
+
+        def __new__(cls, *args, **kwargs):
+            raise TypeError("Type Annotated cannot be instantiated.")
+
+        @typing._tp_cache
+        def __class_getitem__(cls, params):
+            if not isinstance(params, tuple) or len(params) < 2:
+                raise TypeError("Annotated[...] should be used "
+                                "with at least two arguments (a type and an "
+                                "annotation).")
+            allowed_special_forms = (ClassVar, Final)
+            if get_origin(params[0]) in allowed_special_forms:
+                origin = params[0]
+            else:
+                msg = "Annotated[t, ...]: t must be a type."
+                origin = typing._type_check(params[0], msg)
+            metadata = tuple(params[1:])
+            return _AnnotatedAlias(origin, metadata)
+
+        def __init_subclass__(cls, *args, **kwargs):
+            raise TypeError(
+                f"Cannot subclass {cls.__module__}.Annotated"
+            )
+
+# Python 3.8 has get_origin() and get_args() but those implementations aren't
+# Annotated-aware, so we can't use those. Python 3.9's versions don't support
+# ParamSpecArgs and ParamSpecKwargs, so only Python 3.10's versions will do.
+if sys.version_info[:2] >= (3, 10):
+    get_origin = typing.get_origin
+    get_args = typing.get_args
+# 3.8-3.9
+else:
+    try:
+        # 3.9+
+        from typing import _BaseGenericAlias
+    except ImportError:
+        _BaseGenericAlias = typing._GenericAlias
+    try:
+        # 3.9+
+        from typing import GenericAlias as _typing_GenericAlias
+    except ImportError:
+        _typing_GenericAlias = typing._GenericAlias
+
+    def get_origin(tp):
+        """Get the unsubscripted version of a type.
+
+        This supports generic types, Callable, Tuple, Union, Literal, Final, ClassVar
+        and Annotated. Return None for unsupported types. Examples::
+
+            get_origin(Literal[42]) is Literal
+            get_origin(int) is None
+            get_origin(ClassVar[int]) is ClassVar
+            get_origin(Generic) is Generic
+            get_origin(Generic[T]) is Generic
+            get_origin(Union[T, int]) is Union
+            get_origin(List[Tuple[T, T]][int]) == list
+            get_origin(P.args) is P
+        """
+        if isinstance(tp, _AnnotatedAlias):
+            return Annotated
+        if isinstance(tp, (typing._GenericAlias, _typing_GenericAlias, _BaseGenericAlias,
+                           ParamSpecArgs, ParamSpecKwargs)):
+            return tp.__origin__
+        if tp is typing.Generic:
+            return typing.Generic
+        return None
+
+    def get_args(tp):
+        """Get type arguments with all substitutions performed.
+
+        For unions, basic simplifications used by Union constructor are performed.
+        Examples::
+            get_args(Dict[str, int]) == (str, int)
+            get_args(int) == ()
+            get_args(Union[int, Union[T, int], str][int]) == (int, str)
+            get_args(Union[int, Tuple[T, int]][str]) == (int, Tuple[str, int])
+            get_args(Callable[[], T][int]) == ([], int)
+        """
+        if isinstance(tp, _AnnotatedAlias):
+            return (tp.__origin__, *tp.__metadata__)
+        if isinstance(tp, (typing._GenericAlias, _typing_GenericAlias)):
+            if getattr(tp, "_special", False):
+                return ()
+            res = tp.__args__
+            if get_origin(tp) is collections.abc.Callable and res[0] is not Ellipsis:
+                res = (list(res[:-1]), res[-1])
+            return res
+        return ()
+
+
+# 3.10+
+if hasattr(typing, 'TypeAlias'):
+    TypeAlias = typing.TypeAlias
+# 3.9
+elif sys.version_info[:2] >= (3, 9):
+    @_ExtensionsSpecialForm
+    def TypeAlias(self, parameters):
+        """Special marker indicating that an assignment should
+        be recognized as a proper type alias definition by type
+        checkers.
+
+        For example::
+
+            Predicate: TypeAlias = Callable[..., bool]
+
+        It's invalid when used anywhere except as in the example above.
+        """
+        raise TypeError(f"{self} is not subscriptable")
+# 3.8
+else:
+    TypeAlias = _ExtensionsSpecialForm(
+        'TypeAlias',
+        doc="""Special marker indicating that an assignment should
+        be recognized as a proper type alias definition by type
+        checkers.
+
+        For example::
+
+            Predicate: TypeAlias = Callable[..., bool]
+
+        It's invalid when used anywhere except as in the example
+        above."""
+    )
+
+
+if hasattr(typing, "NoDefault"):
+    NoDefault = typing.NoDefault
+else:
+    class NoDefaultTypeMeta(type):
+        def __setattr__(cls, attr, value):
+            # TypeError is consistent with the behavior of NoneType
+            raise TypeError(
+                f"cannot set {attr!r} attribute of immutable type {cls.__name__!r}"
+            )
+
+    class NoDefaultType(metaclass=NoDefaultTypeMeta):
+        """The type of the NoDefault singleton."""
+
+        __slots__ = ()
+
+        def __new__(cls):
+            return globals().get("NoDefault") or object.__new__(cls)
+
+        def __repr__(self):
+            return "typing_extensions.NoDefault"
+
+        def __reduce__(self):
+            return "NoDefault"
+
+    NoDefault = NoDefaultType()
+    del NoDefaultType, NoDefaultTypeMeta
+
+
+def _set_default(type_param, default):
+    type_param.has_default = lambda: default is not NoDefault
+    type_param.__default__ = default
+
+
+def _set_module(typevarlike):
+    # for pickling:
+    def_mod = _caller(depth=3)
+    if def_mod != 'typing_extensions':
+        typevarlike.__module__ = def_mod
+
+
+class _DefaultMixin:
+    """Mixin for TypeVarLike defaults."""
+
+    __slots__ = ()
+    __init__ = _set_default
+
+
+# Classes using this metaclass must provide a _backported_typevarlike ClassVar
+class _TypeVarLikeMeta(type):
+    def __instancecheck__(cls, __instance: Any) -> bool:
+        return isinstance(__instance, cls._backported_typevarlike)
+
+
+if _PEP_696_IMPLEMENTED:
+    from typing import TypeVar
+else:
+    # Add default and infer_variance parameters from PEP 696 and 695
+    class TypeVar(metaclass=_TypeVarLikeMeta):
+        """Type variable."""
+
+        _backported_typevarlike = typing.TypeVar
+
+        def __new__(cls, name, *constraints, bound=None,
+                    covariant=False, contravariant=False,
+                    default=NoDefault, infer_variance=False):
+            if hasattr(typing, "TypeAliasType"):
+                # PEP 695 implemented (3.12+), can pass infer_variance to typing.TypeVar
+                typevar = typing.TypeVar(name, *constraints, bound=bound,
+                                         covariant=covariant, contravariant=contravariant,
+                                         infer_variance=infer_variance)
+            else:
+                typevar = typing.TypeVar(name, *constraints, bound=bound,
+                                         covariant=covariant, contravariant=contravariant)
+                if infer_variance and (covariant or contravariant):
+                    raise ValueError("Variance cannot be specified with infer_variance.")
+                typevar.__infer_variance__ = infer_variance
+
+            _set_default(typevar, default)
+            _set_module(typevar)
+
+            def _tvar_prepare_subst(alias, args):
+                if (
+                    typevar.has_default()
+                    and alias.__parameters__.index(typevar) == len(args)
+                ):
+                    args += (typevar.__default__,)
+                return args
+
+            typevar.__typing_prepare_subst__ = _tvar_prepare_subst
+            return typevar
+
+        def __init_subclass__(cls) -> None:
+            raise TypeError(f"type '{__name__}.TypeVar' is not an acceptable base type")
+
+
+# Python 3.10+ has PEP 612
+if hasattr(typing, 'ParamSpecArgs'):
+    ParamSpecArgs = typing.ParamSpecArgs
+    ParamSpecKwargs = typing.ParamSpecKwargs
+# 3.8-3.9
+else:
+    class _Immutable:
+        """Mixin to indicate that object should not be copied."""
+        __slots__ = ()
+
+        def __copy__(self):
+            return self
+
+        def __deepcopy__(self, memo):
+            return self
+
+    class ParamSpecArgs(_Immutable):
+        """The args for a ParamSpec object.
+
+        Given a ParamSpec object P, P.args is an instance of ParamSpecArgs.
+
+        ParamSpecArgs objects have a reference back to their ParamSpec:
+
+        P.args.__origin__ is P
+
+        This type is meant for runtime introspection and has no special meaning to
+        static type checkers.
+        """
+        def __init__(self, origin):
+            self.__origin__ = origin
+
+        def __repr__(self):
+            return f"{self.__origin__.__name__}.args"
+
+        def __eq__(self, other):
+            if not isinstance(other, ParamSpecArgs):
+                return NotImplemented
+            return self.__origin__ == other.__origin__
+
+    class ParamSpecKwargs(_Immutable):
+        """The kwargs for a ParamSpec object.
+
+        Given a ParamSpec object P, P.kwargs is an instance of ParamSpecKwargs.
+
+        ParamSpecKwargs objects have a reference back to their ParamSpec:
+
+        P.kwargs.__origin__ is P
+
+        This type is meant for runtime introspection and has no special meaning to
+        static type checkers.
+        """
+        def __init__(self, origin):
+            self.__origin__ = origin
+
+        def __repr__(self):
+            return f"{self.__origin__.__name__}.kwargs"
+
+        def __eq__(self, other):
+            if not isinstance(other, ParamSpecKwargs):
+                return NotImplemented
+            return self.__origin__ == other.__origin__
+
+
+if _PEP_696_IMPLEMENTED:
+    from typing import ParamSpec
+
+# 3.10+
+elif hasattr(typing, 'ParamSpec'):
+
+    # Add default parameter - PEP 696
+    class ParamSpec(metaclass=_TypeVarLikeMeta):
+        """Parameter specification."""
+
+        _backported_typevarlike = typing.ParamSpec
+
+        def __new__(cls, name, *, bound=None,
+                    covariant=False, contravariant=False,
+                    infer_variance=False, default=NoDefault):
+            if hasattr(typing, "TypeAliasType"):
+                # PEP 695 implemented, can pass infer_variance to typing.TypeVar
+                paramspec = typing.ParamSpec(name, bound=bound,
+                                             covariant=covariant,
+                                             contravariant=contravariant,
+                                             infer_variance=infer_variance)
+            else:
+                paramspec = typing.ParamSpec(name, bound=bound,
+                                             covariant=covariant,
+                                             contravariant=contravariant)
+                paramspec.__infer_variance__ = infer_variance
+
+            _set_default(paramspec, default)
+            _set_module(paramspec)
+
+            def _paramspec_prepare_subst(alias, args):
+                params = alias.__parameters__
+                i = params.index(paramspec)
+                if i == len(args) and paramspec.has_default():
+                    args = [*args, paramspec.__default__]
+                if i >= len(args):
+                    raise TypeError(f"Too few arguments for {alias}")
+                # Special case where Z[[int, str, bool]] == Z[int, str, bool] in PEP 612.
+                if len(params) == 1 and not typing._is_param_expr(args[0]):
+                    assert i == 0
+                    args = (args,)
+                # Convert lists to tuples to help other libraries cache the results.
+                elif isinstance(args[i], list):
+                    args = (*args[:i], tuple(args[i]), *args[i + 1:])
+                return args
+
+            paramspec.__typing_prepare_subst__ = _paramspec_prepare_subst
+            return paramspec
+
+        def __init_subclass__(cls) -> None:
+            raise TypeError(f"type '{__name__}.ParamSpec' is not an acceptable base type")
+
+# 3.8-3.9
+else:
+
+    # Inherits from list as a workaround for Callable checks in Python < 3.9.2.
+    class ParamSpec(list, _DefaultMixin):
+        """Parameter specification variable.
+
+        Usage::
+
+           P = ParamSpec('P')
+
+        Parameter specification variables exist primarily for the benefit of static
+        type checkers.  They are used to forward the parameter types of one
+        callable to another callable, a pattern commonly found in higher order
+        functions and decorators.  They are only valid when used in ``Concatenate``,
+        or s the first argument to ``Callable``. In Python 3.10 and higher,
+        they are also supported in user-defined Generics at runtime.
+        See class Generic for more information on generic types.  An
+        example for annotating a decorator::
+
+           T = TypeVar('T')
+           P = ParamSpec('P')
+
+           def add_logging(f: Callable[P, T]) -> Callable[P, T]:
+               '''A type-safe decorator to add logging to a function.'''
+               def inner(*args: P.args, **kwargs: P.kwargs) -> T:
+                   logging.info(f'{f.__name__} was called')
+                   return f(*args, **kwargs)
+               return inner
+
+           @add_logging
+           def add_two(x: float, y: float) -> float:
+               '''Add two numbers together.'''
+               return x + y
+
+        Parameter specification variables defined with covariant=True or
+        contravariant=True can be used to declare covariant or contravariant
+        generic types.  These keyword arguments are valid, but their actual semantics
+        are yet to be decided.  See PEP 612 for details.
+
+        Parameter specification variables can be introspected. e.g.:
+
+           P.__name__ == 'T'
+           P.__bound__ == None
+           P.__covariant__ == False
+           P.__contravariant__ == False
+
+        Note that only parameter specification variables defined in global scope can
+        be pickled.
+        """
+
+        # Trick Generic __parameters__.
+        __class__ = typing.TypeVar
+
+        @property
+        def args(self):
+            return ParamSpecArgs(self)
+
+        @property
+        def kwargs(self):
+            return ParamSpecKwargs(self)
+
+        def __init__(self, name, *, bound=None, covariant=False, contravariant=False,
+                     infer_variance=False, default=NoDefault):
+            list.__init__(self, [self])
+            self.__name__ = name
+            self.__covariant__ = bool(covariant)
+            self.__contravariant__ = bool(contravariant)
+            self.__infer_variance__ = bool(infer_variance)
+            if bound:
+                self.__bound__ = typing._type_check(bound, 'Bound must be a type.')
+            else:
+                self.__bound__ = None
+            _DefaultMixin.__init__(self, default)
+
+            # for pickling:
+            def_mod = _caller()
+            if def_mod != 'typing_extensions':
+                self.__module__ = def_mod
+
+        def __repr__(self):
+            if self.__infer_variance__:
+                prefix = ''
+            elif self.__covariant__:
+                prefix = '+'
+            elif self.__contravariant__:
+                prefix = '-'
+            else:
+                prefix = '~'
+            return prefix + self.__name__
+
+        def __hash__(self):
+            return object.__hash__(self)
+
+        def __eq__(self, other):
+            return self is other
+
+        def __reduce__(self):
+            return self.__name__
+
+        # Hack to get typing._type_check to pass.
+        def __call__(self, *args, **kwargs):
+            pass
+
+
+# 3.8-3.9
+if not hasattr(typing, 'Concatenate'):
+    # Inherits from list as a workaround for Callable checks in Python < 3.9.2.
+    class _ConcatenateGenericAlias(list):
+
+        # Trick Generic into looking into this for __parameters__.
+        __class__ = typing._GenericAlias
+
+        # Flag in 3.8.
+        _special = False
+
+        def __init__(self, origin, args):
+            super().__init__(args)
+            self.__origin__ = origin
+            self.__args__ = args
+
+        def __repr__(self):
+            _type_repr = typing._type_repr
+            return (f'{_type_repr(self.__origin__)}'
+                    f'[{", ".join(_type_repr(arg) for arg in self.__args__)}]')
+
+        def __hash__(self):
+            return hash((self.__origin__, self.__args__))
+
+        # Hack to get typing._type_check to pass in Generic.
+        def __call__(self, *args, **kwargs):
+            pass
+
+        @property
+        def __parameters__(self):
+            return tuple(
+                tp for tp in self.__args__ if isinstance(tp, (typing.TypeVar, ParamSpec))
+            )
+
+
+# 3.8-3.9
+@typing._tp_cache
+def _concatenate_getitem(self, parameters):
+    if parameters == ():
+        raise TypeError("Cannot take a Concatenate of no types.")
+    if not isinstance(parameters, tuple):
+        parameters = (parameters,)
+    if not isinstance(parameters[-1], ParamSpec):
+        raise TypeError("The last parameter to Concatenate should be a "
+                        "ParamSpec variable.")
+    msg = "Concatenate[arg, ...]: each arg must be a type."
+    parameters = tuple(typing._type_check(p, msg) for p in parameters)
+    return _ConcatenateGenericAlias(self, parameters)
+
+
+# 3.10+
+if hasattr(typing, 'Concatenate'):
+    Concatenate = typing.Concatenate
+    _ConcatenateGenericAlias = typing._ConcatenateGenericAlias
+# 3.9
+elif sys.version_info[:2] >= (3, 9):
+    @_ExtensionsSpecialForm
+    def Concatenate(self, parameters):
+        """Used in conjunction with ``ParamSpec`` and ``Callable`` to represent a
+        higher order function which adds, removes or transforms parameters of a
+        callable.
+
+        For example::
+
+           Callable[Concatenate[int, P], int]
+
+        See PEP 612 for detailed information.
+        """
+        return _concatenate_getitem(self, parameters)
+# 3.8
+else:
+    class _ConcatenateForm(_ExtensionsSpecialForm, _root=True):
+        def __getitem__(self, parameters):
+            return _concatenate_getitem(self, parameters)
+
+    Concatenate = _ConcatenateForm(
+        'Concatenate',
+        doc="""Used in conjunction with ``ParamSpec`` and ``Callable`` to represent a
+        higher order function which adds, removes or transforms parameters of a
+        callable.
+
+        For example::
+
+           Callable[Concatenate[int, P], int]
+
+        See PEP 612 for detailed information.
+        """)
+
+# 3.10+
+if hasattr(typing, 'TypeGuard'):
+    TypeGuard = typing.TypeGuard
+# 3.9
+elif sys.version_info[:2] >= (3, 9):
+    @_ExtensionsSpecialForm
+    def TypeGuard(self, parameters):
+        """Special typing form used to annotate the return type of a user-defined
+        type guard function.  ``TypeGuard`` only accepts a single type argument.
+        At runtime, functions marked this way should return a boolean.
+
+        ``TypeGuard`` aims to benefit *type narrowing* -- a technique used by static
+        type checkers to determine a more precise type of an expression within a
+        program's code flow.  Usually type narrowing is done by analyzing
+        conditional code flow and applying the narrowing to a block of code.  The
+        conditional expression here is sometimes referred to as a "type guard".
+
+        Sometimes it would be convenient to use a user-defined boolean function
+        as a type guard.  Such a function should use ``TypeGuard[...]`` as its
+        return type to alert static type checkers to this intention.
+
+        Using  ``-> TypeGuard`` tells the static type checker that for a given
+        function:
+
+        1. The return value is a boolean.
+        2. If the return value is ``True``, the type of its argument
+        is the type inside ``TypeGuard``.
+
+        For example::
+
+            def is_str(val: Union[str, float]):
+                # "isinstance" type guard
+                if isinstance(val, str):
+                    # Type of ``val`` is narrowed to ``str``
+                    ...
+                else:
+                    # Else, type of ``val`` is narrowed to ``float``.
+                    ...
+
+        Strict type narrowing is not enforced -- ``TypeB`` need not be a narrower
+        form of ``TypeA`` (it can even be a wider form) and this may lead to
+        type-unsafe results.  The main reason is to allow for things like
+        narrowing ``List[object]`` to ``List[str]`` even though the latter is not
+        a subtype of the former, since ``List`` is invariant.  The responsibility of
+        writing type-safe type guards is left to the user.
+
+        ``TypeGuard`` also works with type variables.  For more information, see
+        PEP 647 (User-Defined Type Guards).
+        """
+        item = typing._type_check(parameters, f'{self} accepts only a single type.')
+        return typing._GenericAlias(self, (item,))
+# 3.8
+else:
+    class _TypeGuardForm(_ExtensionsSpecialForm, _root=True):
+        def __getitem__(self, parameters):
+            item = typing._type_check(parameters,
+                                      f'{self._name} accepts only a single type')
+            return typing._GenericAlias(self, (item,))
+
+    TypeGuard = _TypeGuardForm(
+        'TypeGuard',
+        doc="""Special typing form used to annotate the return type of a user-defined
+        type guard function.  ``TypeGuard`` only accepts a single type argument.
+        At runtime, functions marked this way should return a boolean.
+
+        ``TypeGuard`` aims to benefit *type narrowing* -- a technique used by static
+        type checkers to determine a more precise type of an expression within a
+        program's code flow.  Usually type narrowing is done by analyzing
+        conditional code flow and applying the narrowing to a block of code.  The
+        conditional expression here is sometimes referred to as a "type guard".
+
+        Sometimes it would be convenient to use a user-defined boolean function
+        as a type guard.  Such a function should use ``TypeGuard[...]`` as its
+        return type to alert static type checkers to this intention.
+
+        Using  ``-> TypeGuard`` tells the static type checker that for a given
+        function:
+
+        1. The return value is a boolean.
+        2. If the return value is ``True``, the type of its argument
+        is the type inside ``TypeGuard``.
+
+        For example::
+
+            def is_str(val: Union[str, float]):
+                # "isinstance" type guard
+                if isinstance(val, str):
+                    # Type of ``val`` is narrowed to ``str``
+                    ...
+                else:
+                    # Else, type of ``val`` is narrowed to ``float``.
+                    ...
+
+        Strict type narrowing is not enforced -- ``TypeB`` need not be a narrower
+        form of ``TypeA`` (it can even be a wider form) and this may lead to
+        type-unsafe results.  The main reason is to allow for things like
+        narrowing ``List[object]`` to ``List[str]`` even though the latter is not
+        a subtype of the former, since ``List`` is invariant.  The responsibility of
+        writing type-safe type guards is left to the user.
+
+        ``TypeGuard`` also works with type variables.  For more information, see
+        PEP 647 (User-Defined Type Guards).
+        """)
+
+# 3.13+
+if hasattr(typing, 'TypeIs'):
+    TypeIs = typing.TypeIs
+# 3.9
+elif sys.version_info[:2] >= (3, 9):
+    @_ExtensionsSpecialForm
+    def TypeIs(self, parameters):
+        """Special typing form used to annotate the return type of a user-defined
+        type narrower function.  ``TypeIs`` only accepts a single type argument.
+        At runtime, functions marked this way should return a boolean.
+
+        ``TypeIs`` aims to benefit *type narrowing* -- a technique used by static
+        type checkers to determine a more precise type of an expression within a
+        program's code flow.  Usually type narrowing is done by analyzing
+        conditional code flow and applying the narrowing to a block of code.  The
+        conditional expression here is sometimes referred to as a "type guard".
+
+        Sometimes it would be convenient to use a user-defined boolean function
+        as a type guard.  Such a function should use ``TypeIs[...]`` as its
+        return type to alert static type checkers to this intention.
+
+        Using  ``-> TypeIs`` tells the static type checker that for a given
+        function:
+
+        1. The return value is a boolean.
+        2. If the return value is ``True``, the type of its argument
+        is the intersection of the type inside ``TypeGuard`` and the argument's
+        previously known type.
+
+        For example::
+
+            def is_awaitable(val: object) -> TypeIs[Awaitable[Any]]:
+                return hasattr(val, '__await__')
+
+            def f(val: Union[int, Awaitable[int]]) -> int:
+                if is_awaitable(val):
+                    assert_type(val, Awaitable[int])
+                else:
+                    assert_type(val, int)
+
+        ``TypeIs`` also works with type variables.  For more information, see
+        PEP 742 (Narrowing types with TypeIs).
+        """
+        item = typing._type_check(parameters, f'{self} accepts only a single type.')
+        return typing._GenericAlias(self, (item,))
+# 3.8
+else:
+    class _TypeIsForm(_ExtensionsSpecialForm, _root=True):
+        def __getitem__(self, parameters):
+            item = typing._type_check(parameters,
+                                      f'{self._name} accepts only a single type')
+            return typing._GenericAlias(self, (item,))
+
+    TypeIs = _TypeIsForm(
+        'TypeIs',
+        doc="""Special typing form used to annotate the return type of a user-defined
+        type narrower function.  ``TypeIs`` only accepts a single type argument.
+        At runtime, functions marked this way should return a boolean.
+
+        ``TypeIs`` aims to benefit *type narrowing* -- a technique used by static
+        type checkers to determine a more precise type of an expression within a
+        program's code flow.  Usually type narrowing is done by analyzing
+        conditional code flow and applying the narrowing to a block of code.  The
+        conditional expression here is sometimes referred to as a "type guard".
+
+        Sometimes it would be convenient to use a user-defined boolean function
+        as a type guard.  Such a function should use ``TypeIs[...]`` as its
+        return type to alert static type checkers to this intention.
+
+        Using  ``-> TypeIs`` tells the static type checker that for a given
+        function:
+
+        1. The return value is a boolean.
+        2. If the return value is ``True``, the type of its argument
+        is the intersection of the type inside ``TypeGuard`` and the argument's
+        previously known type.
+
+        For example::
+
+            def is_awaitable(val: object) -> TypeIs[Awaitable[Any]]:
+                return hasattr(val, '__await__')
+
+            def f(val: Union[int, Awaitable[int]]) -> int:
+                if is_awaitable(val):
+                    assert_type(val, Awaitable[int])
+                else:
+                    assert_type(val, int)
+
+        ``TypeIs`` also works with type variables.  For more information, see
+        PEP 742 (Narrowing types with TypeIs).
+        """)
+
+
+# Vendored from cpython typing._SpecialFrom
+class _SpecialForm(typing._Final, _root=True):
+    __slots__ = ('_name', '__doc__', '_getitem')
+
+    def __init__(self, getitem):
+        self._getitem = getitem
+        self._name = getitem.__name__
+        self.__doc__ = getitem.__doc__
+
+    def __getattr__(self, item):
+        if item in {'__name__', '__qualname__'}:
+            return self._name
+
+        raise AttributeError(item)
+
+    def __mro_entries__(self, bases):
+        raise TypeError(f"Cannot subclass {self!r}")
+
+    def __repr__(self):
+        return f'typing_extensions.{self._name}'
+
+    def __reduce__(self):
+        return self._name
+
+    def __call__(self, *args, **kwds):
+        raise TypeError(f"Cannot instantiate {self!r}")
+
+    def __or__(self, other):
+        return typing.Union[self, other]
+
+    def __ror__(self, other):
+        return typing.Union[other, self]
+
+    def __instancecheck__(self, obj):
+        raise TypeError(f"{self} cannot be used with isinstance()")
+
+    def __subclasscheck__(self, cls):
+        raise TypeError(f"{self} cannot be used with issubclass()")
+
+    @typing._tp_cache
+    def __getitem__(self, parameters):
+        return self._getitem(self, parameters)
+
+
+if hasattr(typing, "LiteralString"):  # 3.11+
+    LiteralString = typing.LiteralString
+else:
+    @_SpecialForm
+    def LiteralString(self, params):
+        """Represents an arbitrary literal string.
+
+        Example::
+
+          from typing_extensions import LiteralString
+
+          def query(sql: LiteralString) -> ...:
+              ...
+
+          query("SELECT * FROM table")  # ok
+          query(f"SELECT * FROM {input()}")  # not ok
+
+        See PEP 675 for details.
+
+        """
+        raise TypeError(f"{self} is not subscriptable")
+
+
+if hasattr(typing, "Self"):  # 3.11+
+    Self = typing.Self
+else:
+    @_SpecialForm
+    def Self(self, params):
+        """Used to spell the type of "self" in classes.
+
+        Example::
+
+          from typing import Self
+
+          class ReturnsSelf:
+              def parse(self, data: bytes) -> Self:
+                  ...
+                  return self
+
+        """
+
+        raise TypeError(f"{self} is not subscriptable")
+
+
+if hasattr(typing, "Never"):  # 3.11+
+    Never = typing.Never
+else:
+    @_SpecialForm
+    def Never(self, params):
+        """The bottom type, a type that has no members.
+
+        This can be used to define a function that should never be
+        called, or a function that never returns::
+
+            from typing_extensions import Never
+
+            def never_call_me(arg: Never) -> None:
+                pass
+
+            def int_or_str(arg: int | str) -> None:
+                never_call_me(arg)  # type checker error
+                match arg:
+                    case int():
+                        print("It's an int")
+                    case str():
+                        print("It's a str")
+                    case _:
+                        never_call_me(arg)  # ok, arg is of type Never
+
+        """
+
+        raise TypeError(f"{self} is not subscriptable")
+
+
+if hasattr(typing, 'Required'):  # 3.11+
+    Required = typing.Required
+    NotRequired = typing.NotRequired
+elif sys.version_info[:2] >= (3, 9):  # 3.9-3.10
+    @_ExtensionsSpecialForm
+    def Required(self, parameters):
+        """A special typing construct to mark a key of a total=False TypedDict
+        as required. For example:
+
+            class Movie(TypedDict, total=False):
+                title: Required[str]
+                year: int
+
+            m = Movie(
+                title='The Matrix',  # typechecker error if key is omitted
+                year=1999,
+            )
+
+        There is no runtime checking that a required key is actually provided
+        when instantiating a related TypedDict.
+        """
+        item = typing._type_check(parameters, f'{self._name} accepts only a single type.')
+        return typing._GenericAlias(self, (item,))
+
+    @_ExtensionsSpecialForm
+    def NotRequired(self, parameters):
+        """A special typing construct to mark a key of a TypedDict as
+        potentially missing. For example:
+
+            class Movie(TypedDict):
+                title: str
+                year: NotRequired[int]
+
+            m = Movie(
+                title='The Matrix',  # typechecker error if key is omitted
+                year=1999,
+            )
+        """
+        item = typing._type_check(parameters, f'{self._name} accepts only a single type.')
+        return typing._GenericAlias(self, (item,))
+
+else:  # 3.8
+    class _RequiredForm(_ExtensionsSpecialForm, _root=True):
+        def __getitem__(self, parameters):
+            item = typing._type_check(parameters,
+                                      f'{self._name} accepts only a single type.')
+            return typing._GenericAlias(self, (item,))
+
+    Required = _RequiredForm(
+        'Required',
+        doc="""A special typing construct to mark a key of a total=False TypedDict
+        as required. For example:
+
+            class Movie(TypedDict, total=False):
+                title: Required[str]
+                year: int
+
+            m = Movie(
+                title='The Matrix',  # typechecker error if key is omitted
+                year=1999,
+            )
+
+        There is no runtime checking that a required key is actually provided
+        when instantiating a related TypedDict.
+        """)
+    NotRequired = _RequiredForm(
+        'NotRequired',
+        doc="""A special typing construct to mark a key of a TypedDict as
+        potentially missing. For example:
+
+            class Movie(TypedDict):
+                title: str
+                year: NotRequired[int]
+
+            m = Movie(
+                title='The Matrix',  # typechecker error if key is omitted
+                year=1999,
+            )
+        """)
+
+
+if hasattr(typing, 'ReadOnly'):
+    ReadOnly = typing.ReadOnly
+elif sys.version_info[:2] >= (3, 9):  # 3.9-3.12
+    @_ExtensionsSpecialForm
+    def ReadOnly(self, parameters):
+        """A special typing construct to mark an item of a TypedDict as read-only.
+
+        For example:
+
+            class Movie(TypedDict):
+                title: ReadOnly[str]
+                year: int
+
+            def mutate_movie(m: Movie) -> None:
+                m["year"] = 1992  # allowed
+                m["title"] = "The Matrix"  # typechecker error
+
+        There is no runtime checking for this property.
+        """
+        item = typing._type_check(parameters, f'{self._name} accepts only a single type.')
+        return typing._GenericAlias(self, (item,))
+
+else:  # 3.8
+    class _ReadOnlyForm(_ExtensionsSpecialForm, _root=True):
+        def __getitem__(self, parameters):
+            item = typing._type_check(parameters,
+                                      f'{self._name} accepts only a single type.')
+            return typing._GenericAlias(self, (item,))
+
+    ReadOnly = _ReadOnlyForm(
+        'ReadOnly',
+        doc="""A special typing construct to mark a key of a TypedDict as read-only.
+
+        For example:
+
+            class Movie(TypedDict):
+                title: ReadOnly[str]
+                year: int
+
+            def mutate_movie(m: Movie) -> None:
+                m["year"] = 1992  # allowed
+                m["title"] = "The Matrix"  # typechecker error
+
+        There is no runtime checking for this propery.
+        """)
+
+
+_UNPACK_DOC = """\
+Type unpack operator.
+
+The type unpack operator takes the child types from some container type,
+such as `tuple[int, str]` or a `TypeVarTuple`, and 'pulls them out'. For
+example:
+
+  # For some generic class `Foo`:
+  Foo[Unpack[tuple[int, str]]]  # Equivalent to Foo[int, str]
+
+  Ts = TypeVarTuple('Ts')
+  # Specifies that `Bar` is generic in an arbitrary number of types.
+  # (Think of `Ts` as a tuple of an arbitrary number of individual
+  #  `TypeVar`s, which the `Unpack` is 'pulling out' directly into the
+  #  `Generic[]`.)
+  class Bar(Generic[Unpack[Ts]]): ...
+  Bar[int]  # Valid
+  Bar[int, str]  # Also valid
+
+From Python 3.11, this can also be done using the `*` operator:
+
+    Foo[*tuple[int, str]]
+    class Bar(Generic[*Ts]): ...
+
+The operator can also be used along with a `TypedDict` to annotate
+`**kwargs` in a function signature. For instance:
+
+  class Movie(TypedDict):
+    name: str
+    year: int
+
+  # This function expects two keyword arguments - *name* of type `str` and
+  # *year* of type `int`.
+  def foo(**kwargs: Unpack[Movie]): ...
+
+Note that there is only some runtime checking of this operator. Not
+everything the runtime allows may be accepted by static type checkers.
+
+For more information, see PEP 646 and PEP 692.
+"""
+
+
+if sys.version_info >= (3, 12):  # PEP 692 changed the repr of Unpack[]
+    Unpack = typing.Unpack
+
+    def _is_unpack(obj):
+        return get_origin(obj) is Unpack
+
+elif sys.version_info[:2] >= (3, 9):  # 3.9+
+    class _UnpackSpecialForm(_ExtensionsSpecialForm, _root=True):
+        def __init__(self, getitem):
+            super().__init__(getitem)
+            self.__doc__ = _UNPACK_DOC
+
+    class _UnpackAlias(typing._GenericAlias, _root=True):
+        __class__ = typing.TypeVar
+
+        @property
+        def __typing_unpacked_tuple_args__(self):
+            assert self.__origin__ is Unpack
+            assert len(self.__args__) == 1
+            arg, = self.__args__
+            if isinstance(arg, (typing._GenericAlias, _types.GenericAlias)):
+                if arg.__origin__ is not tuple:
+                    raise TypeError("Unpack[...] must be used with a tuple type")
+                return arg.__args__
+            return None
+
+    @_UnpackSpecialForm
+    def Unpack(self, parameters):
+        item = typing._type_check(parameters, f'{self._name} accepts only a single type.')
+        return _UnpackAlias(self, (item,))
+
+    def _is_unpack(obj):
+        return isinstance(obj, _UnpackAlias)
+
+else:  # 3.8
+    class _UnpackAlias(typing._GenericAlias, _root=True):
+        __class__ = typing.TypeVar
+
+    class _UnpackForm(_ExtensionsSpecialForm, _root=True):
+        def __getitem__(self, parameters):
+            item = typing._type_check(parameters,
+                                      f'{self._name} accepts only a single type.')
+            return _UnpackAlias(self, (item,))
+
+    Unpack = _UnpackForm('Unpack', doc=_UNPACK_DOC)
+
+    def _is_unpack(obj):
+        return isinstance(obj, _UnpackAlias)
+
+
+if _PEP_696_IMPLEMENTED:
+    from typing import TypeVarTuple
+
+elif hasattr(typing, "TypeVarTuple"):  # 3.11+
+
+    def _unpack_args(*args):
+        newargs = []
+        for arg in args:
+            subargs = getattr(arg, '__typing_unpacked_tuple_args__', None)
+            if subargs is not None and not (subargs and subargs[-1] is ...):
+                newargs.extend(subargs)
+            else:
+                newargs.append(arg)
+        return newargs
+
+    # Add default parameter - PEP 696
+    class TypeVarTuple(metaclass=_TypeVarLikeMeta):
+        """Type variable tuple."""
+
+        _backported_typevarlike = typing.TypeVarTuple
+
+        def __new__(cls, name, *, default=NoDefault):
+            tvt = typing.TypeVarTuple(name)
+            _set_default(tvt, default)
+            _set_module(tvt)
+
+            def _typevartuple_prepare_subst(alias, args):
+                params = alias.__parameters__
+                typevartuple_index = params.index(tvt)
+                for param in params[typevartuple_index + 1:]:
+                    if isinstance(param, TypeVarTuple):
+                        raise TypeError(
+                            f"More than one TypeVarTuple parameter in {alias}"
+                        )
+
+                alen = len(args)
+                plen = len(params)
+                left = typevartuple_index
+                right = plen - typevartuple_index - 1
+                var_tuple_index = None
+                fillarg = None
+                for k, arg in enumerate(args):
+                    if not isinstance(arg, type):
+                        subargs = getattr(arg, '__typing_unpacked_tuple_args__', None)
+                        if subargs and len(subargs) == 2 and subargs[-1] is ...:
+                            if var_tuple_index is not None:
+                                raise TypeError(
+                                    "More than one unpacked "
+                                    "arbitrary-length tuple argument"
+                                )
+                            var_tuple_index = k
+                            fillarg = subargs[0]
+                if var_tuple_index is not None:
+                    left = min(left, var_tuple_index)
+                    right = min(right, alen - var_tuple_index - 1)
+                elif left + right > alen:
+                    raise TypeError(f"Too few arguments for {alias};"
+                                    f" actual {alen}, expected at least {plen - 1}")
+                if left == alen - right and tvt.has_default():
+                    replacement = _unpack_args(tvt.__default__)
+                else:
+                    replacement = args[left: alen - right]
+
+                return (
+                    *args[:left],
+                    *([fillarg] * (typevartuple_index - left)),
+                    replacement,
+                    *([fillarg] * (plen - right - left - typevartuple_index - 1)),
+                    *args[alen - right:],
+                )
+
+            tvt.__typing_prepare_subst__ = _typevartuple_prepare_subst
+            return tvt
+
+        def __init_subclass__(self, *args, **kwds):
+            raise TypeError("Cannot subclass special typing classes")
+
+else:  # <=3.10
+    class TypeVarTuple(_DefaultMixin):
+        """Type variable tuple.
+
+        Usage::
+
+            Ts = TypeVarTuple('Ts')
+
+        In the same way that a normal type variable is a stand-in for a single
+        type such as ``int``, a type variable *tuple* is a stand-in for a *tuple*
+        type such as ``Tuple[int, str]``.
+
+        Type variable tuples can be used in ``Generic`` declarations.
+        Consider the following example::
+
+            class Array(Generic[*Ts]): ...
+
+        The ``Ts`` type variable tuple here behaves like ``tuple[T1, T2]``,
+        where ``T1`` and ``T2`` are type variables. To use these type variables
+        as type parameters of ``Array``, we must *unpack* the type variable tuple using
+        the star operator: ``*Ts``. The signature of ``Array`` then behaves
+        as if we had simply written ``class Array(Generic[T1, T2]): ...``.
+        In contrast to ``Generic[T1, T2]``, however, ``Generic[*Shape]`` allows
+        us to parameterise the class with an *arbitrary* number of type parameters.
+
+        Type variable tuples can be used anywhere a normal ``TypeVar`` can.
+        This includes class definitions, as shown above, as well as function
+        signatures and variable annotations::
+
+            class Array(Generic[*Ts]):
+
+                def __init__(self, shape: Tuple[*Ts]):
+                    self._shape: Tuple[*Ts] = shape
+
+                def get_shape(self) -> Tuple[*Ts]:
+                    return self._shape
+
+            shape = (Height(480), Width(640))
+            x: Array[Height, Width] = Array(shape)
+            y = abs(x)  # Inferred type is Array[Height, Width]
+            z = x + x   #        ...    is Array[Height, Width]
+            x.get_shape()  #     ...    is tuple[Height, Width]
+
+        """
+
+        # Trick Generic __parameters__.
+        __class__ = typing.TypeVar
+
+        def __iter__(self):
+            yield self.__unpacked__
+
+        def __init__(self, name, *, default=NoDefault):
+            self.__name__ = name
+            _DefaultMixin.__init__(self, default)
+
+            # for pickling:
+            def_mod = _caller()
+            if def_mod != 'typing_extensions':
+                self.__module__ = def_mod
+
+            self.__unpacked__ = Unpack[self]
+
+        def __repr__(self):
+            return self.__name__
+
+        def __hash__(self):
+            return object.__hash__(self)
+
+        def __eq__(self, other):
+            return self is other
+
+        def __reduce__(self):
+            return self.__name__
+
+        def __init_subclass__(self, *args, **kwds):
+            if '_root' not in kwds:
+                raise TypeError("Cannot subclass special typing classes")
+
+
+if hasattr(typing, "reveal_type"):  # 3.11+
+    reveal_type = typing.reveal_type
+else:  # <=3.10
+    def reveal_type(obj: T, /) -> T:
+        """Reveal the inferred type of a variable.
+
+        When a static type checker encounters a call to ``reveal_type()``,
+        it will emit the inferred type of the argument::
+
+            x: int = 1
+            reveal_type(x)
+
+        Running a static type checker (e.g., ``mypy``) on this example
+        will produce output similar to 'Revealed type is "builtins.int"'.
+
+        At runtime, the function prints the runtime type of the
+        argument and returns it unchanged.
+
+        """
+        print(f"Runtime type is {type(obj).__name__!r}", file=sys.stderr)
+        return obj
+
+
+if hasattr(typing, "_ASSERT_NEVER_REPR_MAX_LENGTH"):  # 3.11+
+    _ASSERT_NEVER_REPR_MAX_LENGTH = typing._ASSERT_NEVER_REPR_MAX_LENGTH
+else:  # <=3.10
+    _ASSERT_NEVER_REPR_MAX_LENGTH = 100
+
+
+if hasattr(typing, "assert_never"):  # 3.11+
+    assert_never = typing.assert_never
+else:  # <=3.10
+    def assert_never(arg: Never, /) -> Never:
+        """Assert to the type checker that a line of code is unreachable.
+
+        Example::
+
+            def int_or_str(arg: int | str) -> None:
+                match arg:
+                    case int():
+                        print("It's an int")
+                    case str():
+                        print("It's a str")
+                    case _:
+                        assert_never(arg)
+
+        If a type checker finds that a call to assert_never() is
+        reachable, it will emit an error.
+
+        At runtime, this throws an exception when called.
+
+        """
+        value = repr(arg)
+        if len(value) > _ASSERT_NEVER_REPR_MAX_LENGTH:
+            value = value[:_ASSERT_NEVER_REPR_MAX_LENGTH] + '...'
+        raise AssertionError(f"Expected code to be unreachable, but got: {value}")
+
+
+if sys.version_info >= (3, 12):  # 3.12+
+    # dataclass_transform exists in 3.11 but lacks the frozen_default parameter
+    dataclass_transform = typing.dataclass_transform
+else:  # <=3.11
+    def dataclass_transform(
+        *,
+        eq_default: bool = True,
+        order_default: bool = False,
+        kw_only_default: bool = False,
+        frozen_default: bool = False,
+        field_specifiers: typing.Tuple[
+            typing.Union[typing.Type[typing.Any], typing.Callable[..., typing.Any]],
+            ...
+        ] = (),
+        **kwargs: typing.Any,
+    ) -> typing.Callable[[T], T]:
+        """Decorator that marks a function, class, or metaclass as providing
+        dataclass-like behavior.
+
+        Example:
+
+            from typing_extensions import dataclass_transform
+
+            _T = TypeVar("_T")
+
+            # Used on a decorator function
+            @dataclass_transform()
+            def create_model(cls: type[_T]) -> type[_T]:
+                ...
+                return cls
+
+            @create_model
+            class CustomerModel:
+                id: int
+                name: str
+
+            # Used on a base class
+            @dataclass_transform()
+            class ModelBase: ...
+
+            class CustomerModel(ModelBase):
+                id: int
+                name: str
+
+            # Used on a metaclass
+            @dataclass_transform()
+            class ModelMeta(type): ...
+
+            class ModelBase(metaclass=ModelMeta): ...
+
+            class CustomerModel(ModelBase):
+                id: int
+                name: str
+
+        Each of the ``CustomerModel`` classes defined in this example will now
+        behave similarly to a dataclass created with the ``@dataclasses.dataclass``
+        decorator. For example, the type checker will synthesize an ``__init__``
+        method.
+
+        The arguments to this decorator can be used to customize this behavior:
+        - ``eq_default`` indicates whether the ``eq`` parameter is assumed to be
+          True or False if it is omitted by the caller.
+        - ``order_default`` indicates whether the ``order`` parameter is
+          assumed to be True or False if it is omitted by the caller.
+        - ``kw_only_default`` indicates whether the ``kw_only`` parameter is
+          assumed to be True or False if it is omitted by the caller.
+        - ``frozen_default`` indicates whether the ``frozen`` parameter is
+          assumed to be True or False if it is omitted by the caller.
+        - ``field_specifiers`` specifies a static list of supported classes
+          or functions that describe fields, similar to ``dataclasses.field()``.
+
+        At runtime, this decorator records its arguments in the
+        ``__dataclass_transform__`` attribute on the decorated object.
+
+        See PEP 681 for details.
+
+        """
+        def decorator(cls_or_fn):
+            cls_or_fn.__dataclass_transform__ = {
+                "eq_default": eq_default,
+                "order_default": order_default,
+                "kw_only_default": kw_only_default,
+                "frozen_default": frozen_default,
+                "field_specifiers": field_specifiers,
+                "kwargs": kwargs,
+            }
+            return cls_or_fn
+        return decorator
+
+
+if hasattr(typing, "override"):  # 3.12+
+    override = typing.override
+else:  # <=3.11
+    _F = typing.TypeVar("_F", bound=typing.Callable[..., typing.Any])
+
+    def override(arg: _F, /) -> _F:
+        """Indicate that a method is intended to override a method in a base class.
+
+        Usage:
+
+            class Base:
+                def method(self) -> None:
+                    pass
+
+            class Child(Base):
+                @override
+                def method(self) -> None:
+                    super().method()
+
+        When this decorator is applied to a method, the type checker will
+        validate that it overrides a method with the same name on a base class.
+        This helps prevent bugs that may occur when a base class is changed
+        without an equivalent change to a child class.
+
+        There is no runtime checking of these properties. The decorator
+        sets the ``__override__`` attribute to ``True`` on the decorated object
+        to allow runtime introspection.
+
+        See PEP 698 for details.
+
+        """
+        try:
+            arg.__override__ = True
+        except (AttributeError, TypeError):
+            # Skip the attribute silently if it is not writable.
+            # AttributeError happens if the object has __slots__ or a
+            # read-only property, TypeError if it's a builtin class.
+            pass
+        return arg
+
+
+if hasattr(warnings, "deprecated"):
+    deprecated = warnings.deprecated
+else:
+    _T = typing.TypeVar("_T")
+
+    class deprecated:
+        """Indicate that a class, function or overload is deprecated.
+
+        When this decorator is applied to an object, the type checker
+        will generate a diagnostic on usage of the deprecated object.
+
+        Usage:
+
+            @deprecated("Use B instead")
+            class A:
+                pass
+
+            @deprecated("Use g instead")
+            def f():
+                pass
+
+            @overload
+            @deprecated("int support is deprecated")
+            def g(x: int) -> int: ...
+            @overload
+            def g(x: str) -> int: ...
+
+        The warning specified by *category* will be emitted at runtime
+        on use of deprecated objects. For functions, that happens on calls;
+        for classes, on instantiation and on creation of subclasses.
+        If the *category* is ``None``, no warning is emitted at runtime.
+        The *stacklevel* determines where the
+        warning is emitted. If it is ``1`` (the default), the warning
+        is emitted at the direct caller of the deprecated object; if it
+        is higher, it is emitted further up the stack.
+        Static type checker behavior is not affected by the *category*
+        and *stacklevel* arguments.
+
+        The deprecation message passed to the decorator is saved in the
+        ``__deprecated__`` attribute on the decorated object.
+        If applied to an overload, the decorator
+        must be after the ``@overload`` decorator for the attribute to
+        exist on the overload as returned by ``get_overloads()``.
+
+        See PEP 702 for details.
+
+        """
+        def __init__(
+            self,
+            message: str,
+            /,
+            *,
+            category: typing.Optional[typing.Type[Warning]] = DeprecationWarning,
+            stacklevel: int = 1,
+        ) -> None:
+            if not isinstance(message, str):
+                raise TypeError(
+                    "Expected an object of type str for 'message', not "
+                    f"{type(message).__name__!r}"
+                )
+            self.message = message
+            self.category = category
+            self.stacklevel = stacklevel
+
+        def __call__(self, arg: _T, /) -> _T:
+            # Make sure the inner functions created below don't
+            # retain a reference to self.
+            msg = self.message
+            category = self.category
+            stacklevel = self.stacklevel
+            if category is None:
+                arg.__deprecated__ = msg
+                return arg
+            elif isinstance(arg, type):
+                import functools
+                from types import MethodType
+
+                original_new = arg.__new__
+
+                @functools.wraps(original_new)
+                def __new__(cls, *args, **kwargs):
+                    if cls is arg:
+                        warnings.warn(msg, category=category, stacklevel=stacklevel + 1)
+                    if original_new is not object.__new__:
+                        return original_new(cls, *args, **kwargs)
+                    # Mirrors a similar check in object.__new__.
+                    elif cls.__init__ is object.__init__ and (args or kwargs):
+                        raise TypeError(f"{cls.__name__}() takes no arguments")
+                    else:
+                        return original_new(cls)
+
+                arg.__new__ = staticmethod(__new__)
+
+                original_init_subclass = arg.__init_subclass__
+                # We need slightly different behavior if __init_subclass__
+                # is a bound method (likely if it was implemented in Python)
+                if isinstance(original_init_subclass, MethodType):
+                    original_init_subclass = original_init_subclass.__func__
+
+                    @functools.wraps(original_init_subclass)
+                    def __init_subclass__(*args, **kwargs):
+                        warnings.warn(msg, category=category, stacklevel=stacklevel + 1)
+                        return original_init_subclass(*args, **kwargs)
+
+                    arg.__init_subclass__ = classmethod(__init_subclass__)
+                # Or otherwise, which likely means it's a builtin such as
+                # object's implementation of __init_subclass__.
+                else:
+                    @functools.wraps(original_init_subclass)
+                    def __init_subclass__(*args, **kwargs):
+                        warnings.warn(msg, category=category, stacklevel=stacklevel + 1)
+                        return original_init_subclass(*args, **kwargs)
+
+                    arg.__init_subclass__ = __init_subclass__
+
+                arg.__deprecated__ = __new__.__deprecated__ = msg
+                __init_subclass__.__deprecated__ = msg
+                return arg
+            elif callable(arg):
+                import functools
+
+                @functools.wraps(arg)
+                def wrapper(*args, **kwargs):
+                    warnings.warn(msg, category=category, stacklevel=stacklevel + 1)
+                    return arg(*args, **kwargs)
+
+                arg.__deprecated__ = wrapper.__deprecated__ = msg
+                return wrapper
+            else:
+                raise TypeError(
+                    "@deprecated decorator with non-None category must be applied to "
+                    f"a class or callable, not {arg!r}"
+                )
+
+
+# We have to do some monkey patching to deal with the dual nature of
+# Unpack/TypeVarTuple:
+# - We want Unpack to be a kind of TypeVar so it gets accepted in
+#   Generic[Unpack[Ts]]
+# - We want it to *not* be treated as a TypeVar for the purposes of
+#   counting generic parameters, so that when we subscript a generic,
+#   the runtime doesn't try to substitute the Unpack with the subscripted type.
+if not hasattr(typing, "TypeVarTuple"):
+    def _check_generic(cls, parameters, elen=_marker):
+        """Check correct count for parameters of a generic cls (internal helper).
+
+        This gives a nice error message in case of count mismatch.
+        """
+        if not elen:
+            raise TypeError(f"{cls} is not a generic class")
+        if elen is _marker:
+            if not hasattr(cls, "__parameters__") or not cls.__parameters__:
+                raise TypeError(f"{cls} is not a generic class")
+            elen = len(cls.__parameters__)
+        alen = len(parameters)
+        if alen != elen:
+            expect_val = elen
+            if hasattr(cls, "__parameters__"):
+                parameters = [p for p in cls.__parameters__ if not _is_unpack(p)]
+                num_tv_tuples = sum(isinstance(p, TypeVarTuple) for p in parameters)
+                if (num_tv_tuples > 0) and (alen >= elen - num_tv_tuples):
+                    return
+
+                # deal with TypeVarLike defaults
+                # required TypeVarLikes cannot appear after a defaulted one.
+                if alen < elen:
+                    # since we validate TypeVarLike default in _collect_type_vars
+                    # or _collect_parameters we can safely check parameters[alen]
+                    if (
+                        getattr(parameters[alen], '__default__', NoDefault)
+                        is not NoDefault
+                    ):
+                        return
+
+                    num_default_tv = sum(getattr(p, '__default__', NoDefault)
+                                         is not NoDefault for p in parameters)
+
+                    elen -= num_default_tv
+
+                    expect_val = f"at least {elen}"
+
+            things = "arguments" if sys.version_info >= (3, 10) else "parameters"
+            raise TypeError(f"Too {'many' if alen > elen else 'few'} {things}"
+                            f" for {cls}; actual {alen}, expected {expect_val}")
+else:
+    # Python 3.11+
+
+    def _check_generic(cls, parameters, elen):
+        """Check correct count for parameters of a generic cls (internal helper).
+
+        This gives a nice error message in case of count mismatch.
+        """
+        if not elen:
+            raise TypeError(f"{cls} is not a generic class")
+        alen = len(parameters)
+        if alen != elen:
+            expect_val = elen
+            if hasattr(cls, "__parameters__"):
+                parameters = [p for p in cls.__parameters__ if not _is_unpack(p)]
+
+                # deal with TypeVarLike defaults
+                # required TypeVarLikes cannot appear after a defaulted one.
+                if alen < elen:
+                    # since we validate TypeVarLike default in _collect_type_vars
+                    # or _collect_parameters we can safely check parameters[alen]
+                    if (
+                        getattr(parameters[alen], '__default__', NoDefault)
+                        is not NoDefault
+                    ):
+                        return
+
+                    num_default_tv = sum(getattr(p, '__default__', NoDefault)
+                                         is not NoDefault for p in parameters)
+
+                    elen -= num_default_tv
+
+                    expect_val = f"at least {elen}"
+
+            raise TypeError(f"Too {'many' if alen > elen else 'few'} arguments"
+                            f" for {cls}; actual {alen}, expected {expect_val}")
+
+if not _PEP_696_IMPLEMENTED:
+    typing._check_generic = _check_generic
+
+
+def _has_generic_or_protocol_as_origin() -> bool:
+    try:
+        frame = sys._getframe(2)
+    # - Catch AttributeError: not all Python implementations have sys._getframe()
+    # - Catch ValueError: maybe we're called from an unexpected module
+    #   and the call stack isn't deep enough
+    except (AttributeError, ValueError):
+        return False  # err on the side of leniency
+    else:
+        # If we somehow get invoked from outside typing.py,
+        # also err on the side of leniency
+        if frame.f_globals.get("__name__") != "typing":
+            return False
+        origin = frame.f_locals.get("origin")
+        # Cannot use "in" because origin may be an object with a buggy __eq__ that
+        # throws an error.
+        return origin is typing.Generic or origin is Protocol or origin is typing.Protocol
+
+
+_TYPEVARTUPLE_TYPES = {TypeVarTuple, getattr(typing, "TypeVarTuple", None)}
+
+
+def _is_unpacked_typevartuple(x) -> bool:
+    if get_origin(x) is not Unpack:
+        return False
+    args = get_args(x)
+    return (
+        bool(args)
+        and len(args) == 1
+        and type(args[0]) in _TYPEVARTUPLE_TYPES
+    )
+
+
+# Python 3.11+ _collect_type_vars was renamed to _collect_parameters
+if hasattr(typing, '_collect_type_vars'):
+    def _collect_type_vars(types, typevar_types=None):
+        """Collect all type variable contained in types in order of
+        first appearance (lexicographic order). For example::
+
+            _collect_type_vars((T, List[S, T])) == (T, S)
+        """
+        if typevar_types is None:
+            typevar_types = typing.TypeVar
+        tvars = []
+
+        # A required TypeVarLike cannot appear after a TypeVarLike with a default
+        # if it was a direct call to `Generic[]` or `Protocol[]`
+        enforce_default_ordering = _has_generic_or_protocol_as_origin()
+        default_encountered = False
+
+        # Also, a TypeVarLike with a default cannot appear after a TypeVarTuple
+        type_var_tuple_encountered = False
+
+        for t in types:
+            if _is_unpacked_typevartuple(t):
+                type_var_tuple_encountered = True
+            elif isinstance(t, typevar_types) and t not in tvars:
+                if enforce_default_ordering:
+                    has_default = getattr(t, '__default__', NoDefault) is not NoDefault
+                    if has_default:
+                        if type_var_tuple_encountered:
+                            raise TypeError('Type parameter with a default'
+                                            ' follows TypeVarTuple')
+                        default_encountered = True
+                    elif default_encountered:
+                        raise TypeError(f'Type parameter {t!r} without a default'
+                                        ' follows type parameter with a default')
+
+                tvars.append(t)
+            if _should_collect_from_parameters(t):
+                tvars.extend([t for t in t.__parameters__ if t not in tvars])
+        return tuple(tvars)
+
+    typing._collect_type_vars = _collect_type_vars
+else:
+    def _collect_parameters(args):
+        """Collect all type variables and parameter specifications in args
+        in order of first appearance (lexicographic order).
+
+        For example::
+
+            assert _collect_parameters((T, Callable[P, T])) == (T, P)
+        """
+        parameters = []
+
+        # A required TypeVarLike cannot appear after a TypeVarLike with default
+        # if it was a direct call to `Generic[]` or `Protocol[]`
+        enforce_default_ordering = _has_generic_or_protocol_as_origin()
+        default_encountered = False
+
+        # Also, a TypeVarLike with a default cannot appear after a TypeVarTuple
+        type_var_tuple_encountered = False
+
+        for t in args:
+            if isinstance(t, type):
+                # We don't want __parameters__ descriptor of a bare Python class.
+                pass
+            elif isinstance(t, tuple):
+                # `t` might be a tuple, when `ParamSpec` is substituted with
+                # `[T, int]`, or `[int, *Ts]`, etc.
+                for x in t:
+                    for collected in _collect_parameters([x]):
+                        if collected not in parameters:
+                            parameters.append(collected)
+            elif hasattr(t, '__typing_subst__'):
+                if t not in parameters:
+                    if enforce_default_ordering:
+                        has_default = (
+                            getattr(t, '__default__', NoDefault) is not NoDefault
+                        )
+
+                        if type_var_tuple_encountered and has_default:
+                            raise TypeError('Type parameter with a default'
+                                            ' follows TypeVarTuple')
+
+                        if has_default:
+                            default_encountered = True
+                        elif default_encountered:
+                            raise TypeError(f'Type parameter {t!r} without a default'
+                                            ' follows type parameter with a default')
+
+                    parameters.append(t)
+            else:
+                if _is_unpacked_typevartuple(t):
+                    type_var_tuple_encountered = True
+                for x in getattr(t, '__parameters__', ()):
+                    if x not in parameters:
+                        parameters.append(x)
+
+        return tuple(parameters)
+
+    if not _PEP_696_IMPLEMENTED:
+        typing._collect_parameters = _collect_parameters
+
+# Backport typing.NamedTuple as it exists in Python 3.13.
+# In 3.11, the ability to define generic `NamedTuple`s was supported.
+# This was explicitly disallowed in 3.9-3.10, and only half-worked in <=3.8.
+# On 3.12, we added __orig_bases__ to call-based NamedTuples
+# On 3.13, we deprecated kwargs-based NamedTuples
+if sys.version_info >= (3, 13):
+    NamedTuple = typing.NamedTuple
+else:
+    def _make_nmtuple(name, types, module, defaults=()):
+        fields = [n for n, t in types]
+        annotations = {n: typing._type_check(t, f"field {n} annotation must be a type")
+                       for n, t in types}
+        nm_tpl = collections.namedtuple(name, fields,
+                                        defaults=defaults, module=module)
+        nm_tpl.__annotations__ = nm_tpl.__new__.__annotations__ = annotations
+        # The `_field_types` attribute was removed in 3.9;
+        # in earlier versions, it is the same as the `__annotations__` attribute
+        if sys.version_info < (3, 9):
+            nm_tpl._field_types = annotations
+        return nm_tpl
+
+    _prohibited_namedtuple_fields = typing._prohibited
+    _special_namedtuple_fields = frozenset({'__module__', '__name__', '__annotations__'})
+
+    class _NamedTupleMeta(type):
+        def __new__(cls, typename, bases, ns):
+            assert _NamedTuple in bases
+            for base in bases:
+                if base is not _NamedTuple and base is not typing.Generic:
+                    raise TypeError(
+                        'can only inherit from a NamedTuple type and Generic')
+            bases = tuple(tuple if base is _NamedTuple else base for base in bases)
+            if "__annotations__" in ns:
+                types = ns["__annotations__"]
+            elif "__annotate__" in ns:
+                # TODO: Use inspect.VALUE here, and make the annotations lazily evaluated
+                types = ns["__annotate__"](1)
+            else:
+                types = {}
+            default_names = []
+            for field_name in types:
+                if field_name in ns:
+                    default_names.append(field_name)
+                elif default_names:
+                    raise TypeError(f"Non-default namedtuple field {field_name} "
+                                    f"cannot follow default field"
+                                    f"{'s' if len(default_names) > 1 else ''} "
+                                    f"{', '.join(default_names)}")
+            nm_tpl = _make_nmtuple(
+                typename, types.items(),
+                defaults=[ns[n] for n in default_names],
+                module=ns['__module__']
+            )
+            nm_tpl.__bases__ = bases
+            if typing.Generic in bases:
+                if hasattr(typing, '_generic_class_getitem'):  # 3.12+
+                    nm_tpl.__class_getitem__ = classmethod(typing._generic_class_getitem)
+                else:
+                    class_getitem = typing.Generic.__class_getitem__.__func__
+                    nm_tpl.__class_getitem__ = classmethod(class_getitem)
+            # update from user namespace without overriding special namedtuple attributes
+            for key, val in ns.items():
+                if key in _prohibited_namedtuple_fields:
+                    raise AttributeError("Cannot overwrite NamedTuple attribute " + key)
+                elif key not in _special_namedtuple_fields:
+                    if key not in nm_tpl._fields:
+                        setattr(nm_tpl, key, ns[key])
+                    try:
+                        set_name = type(val).__set_name__
+                    except AttributeError:
+                        pass
+                    else:
+                        try:
+                            set_name(val, nm_tpl, key)
+                        except BaseException as e:
+                            msg = (
+                                f"Error calling __set_name__ on {type(val).__name__!r} "
+                                f"instance {key!r} in {typename!r}"
+                            )
+                            # BaseException.add_note() existed on py311,
+                            # but the __set_name__ machinery didn't start
+                            # using add_note() until py312.
+                            # Making sure exceptions are raised in the same way
+                            # as in "normal" classes seems most important here.
+                            if sys.version_info >= (3, 12):
+                                e.add_note(msg)
+                                raise
+                            else:
+                                raise RuntimeError(msg) from e
+
+            if typing.Generic in bases:
+                nm_tpl.__init_subclass__()
+            return nm_tpl
+
+    _NamedTuple = type.__new__(_NamedTupleMeta, 'NamedTuple', (), {})
+
+    def _namedtuple_mro_entries(bases):
+        assert NamedTuple in bases
+        return (_NamedTuple,)
+
+    @_ensure_subclassable(_namedtuple_mro_entries)
+    def NamedTuple(typename, fields=_marker, /, **kwargs):
+        """Typed version of namedtuple.
+
+        Usage::
+
+            class Employee(NamedTuple):
+                name: str
+                id: int
+
+        This is equivalent to::
+
+            Employee = collections.namedtuple('Employee', ['name', 'id'])
+
+        The resulting class has an extra __annotations__ attribute, giving a
+        dict that maps field names to types.  (The field names are also in
+        the _fields attribute, which is part of the namedtuple API.)
+        An alternative equivalent functional syntax is also accepted::
+
+            Employee = NamedTuple('Employee', [('name', str), ('id', int)])
+        """
+        if fields is _marker:
+            if kwargs:
+                deprecated_thing = "Creating NamedTuple classes using keyword arguments"
+                deprecation_msg = (
+                    "{name} is deprecated and will be disallowed in Python {remove}. "
+                    "Use the class-based or functional syntax instead."
+                )
+            else:
+                deprecated_thing = "Failing to pass a value for the 'fields' parameter"
+                example = f"`{typename} = NamedTuple({typename!r}, [])`"
+                deprecation_msg = (
+                    "{name} is deprecated and will be disallowed in Python {remove}. "
+                    "To create a NamedTuple class with 0 fields "
+                    "using the functional syntax, "
+                    "pass an empty list, e.g. "
+                ) + example + "."
+        elif fields is None:
+            if kwargs:
+                raise TypeError(
+                    "Cannot pass `None` as the 'fields' parameter "
+                    "and also specify fields using keyword arguments"
+                )
+            else:
+                deprecated_thing = "Passing `None` as the 'fields' parameter"
+                example = f"`{typename} = NamedTuple({typename!r}, [])`"
+                deprecation_msg = (
+                    "{name} is deprecated and will be disallowed in Python {remove}. "
+                    "To create a NamedTuple class with 0 fields "
+                    "using the functional syntax, "
+                    "pass an empty list, e.g. "
+                ) + example + "."
+        elif kwargs:
+            raise TypeError("Either list of fields or keywords"
+                            " can be provided to NamedTuple, not both")
+        if fields is _marker or fields is None:
+            warnings.warn(
+                deprecation_msg.format(name=deprecated_thing, remove="3.15"),
+                DeprecationWarning,
+                stacklevel=2,
+            )
+            fields = kwargs.items()
+        nt = _make_nmtuple(typename, fields, module=_caller())
+        nt.__orig_bases__ = (NamedTuple,)
+        return nt
+
+
+if hasattr(collections.abc, "Buffer"):
+    Buffer = collections.abc.Buffer
+else:
+    class Buffer(abc.ABC):  # noqa: B024
+        """Base class for classes that implement the buffer protocol.
+
+        The buffer protocol allows Python objects to expose a low-level
+        memory buffer interface. Before Python 3.12, it is not possible
+        to implement the buffer protocol in pure Python code, or even
+        to check whether a class implements the buffer protocol. In
+        Python 3.12 and higher, the ``__buffer__`` method allows access
+        to the buffer protocol from Python code, and the
+        ``collections.abc.Buffer`` ABC allows checking whether a class
+        implements the buffer protocol.
+
+        To indicate support for the buffer protocol in earlier versions,
+        inherit from this ABC, either in a stub file or at runtime,
+        or use ABC registration. This ABC provides no methods, because
+        there is no Python-accessible methods shared by pre-3.12 buffer
+        classes. It is useful primarily for static checks.
+
+        """
+
+    # As a courtesy, register the most common stdlib buffer classes.
+    Buffer.register(memoryview)
+    Buffer.register(bytearray)
+    Buffer.register(bytes)
+
+
+# Backport of types.get_original_bases, available on 3.12+ in CPython
+if hasattr(_types, "get_original_bases"):
+    get_original_bases = _types.get_original_bases
+else:
+    def get_original_bases(cls, /):
+        """Return the class's "original" bases prior to modification by `__mro_entries__`.
+
+        Examples::
+
+            from typing import TypeVar, Generic
+            from typing_extensions import NamedTuple, TypedDict
+
+            T = TypeVar("T")
+            class Foo(Generic[T]): ...
+            class Bar(Foo[int], float): ...
+            class Baz(list[str]): ...
+            Eggs = NamedTuple("Eggs", [("a", int), ("b", str)])
+            Spam = TypedDict("Spam", {"a": int, "b": str})
+
+            assert get_original_bases(Bar) == (Foo[int], float)
+            assert get_original_bases(Baz) == (list[str],)
+            assert get_original_bases(Eggs) == (NamedTuple,)
+            assert get_original_bases(Spam) == (TypedDict,)
+            assert get_original_bases(int) == (object,)
+        """
+        try:
+            return cls.__dict__.get("__orig_bases__", cls.__bases__)
+        except AttributeError:
+            raise TypeError(
+                f'Expected an instance of type, not {type(cls).__name__!r}'
+            ) from None
+
+
+# NewType is a class on Python 3.10+, making it pickleable
+# The error message for subclassing instances of NewType was improved on 3.11+
+if sys.version_info >= (3, 11):
+    NewType = typing.NewType
+else:
+    class NewType:
+        """NewType creates simple unique types with almost zero
+        runtime overhead. NewType(name, tp) is considered a subtype of tp
+        by static type checkers. At runtime, NewType(name, tp) returns
+        a dummy callable that simply returns its argument. Usage::
+            UserId = NewType('UserId', int)
+            def name_by_id(user_id: UserId) -> str:
+                ...
+            UserId('user')          # Fails type check
+            name_by_id(42)          # Fails type check
+            name_by_id(UserId(42))  # OK
+            num = UserId(5) + 1     # type: int
+        """
+
+        def __call__(self, obj, /):
+            return obj
+
+        def __init__(self, name, tp):
+            self.__qualname__ = name
+            if '.' in name:
+                name = name.rpartition('.')[-1]
+            self.__name__ = name
+            self.__supertype__ = tp
+            def_mod = _caller()
+            if def_mod != 'typing_extensions':
+                self.__module__ = def_mod
+
+        def __mro_entries__(self, bases):
+            # We defined __mro_entries__ to get a better error message
+            # if a user attempts to subclass a NewType instance. bpo-46170
+            supercls_name = self.__name__
+
+            class Dummy:
+                def __init_subclass__(cls):
+                    subcls_name = cls.__name__
+                    raise TypeError(
+                        f"Cannot subclass an instance of NewType. "
+                        f"Perhaps you were looking for: "
+                        f"`{subcls_name} = NewType({subcls_name!r}, {supercls_name})`"
+                    )
+
+            return (Dummy,)
+
+        def __repr__(self):
+            return f'{self.__module__}.{self.__qualname__}'
+
+        def __reduce__(self):
+            return self.__qualname__
+
+        if sys.version_info >= (3, 10):
+            # PEP 604 methods
+            # It doesn't make sense to have these methods on Python <3.10
+
+            def __or__(self, other):
+                return typing.Union[self, other]
+
+            def __ror__(self, other):
+                return typing.Union[other, self]
+
+
+if hasattr(typing, "TypeAliasType"):
+    TypeAliasType = typing.TypeAliasType
+else:
+    def _is_unionable(obj):
+        """Corresponds to is_unionable() in unionobject.c in CPython."""
+        return obj is None or isinstance(obj, (
+            type,
+            _types.GenericAlias,
+            _types.UnionType,
+            TypeAliasType,
+        ))
+
+    class TypeAliasType:
+        """Create named, parameterized type aliases.
+
+        This provides a backport of the new `type` statement in Python 3.12:
+
+            type ListOrSet[T] = list[T] | set[T]
+
+        is equivalent to:
+
+            T = TypeVar("T")
+            ListOrSet = TypeAliasType("ListOrSet", list[T] | set[T], type_params=(T,))
+
+        The name ListOrSet can then be used as an alias for the type it refers to.
+
+        The type_params argument should contain all the type parameters used
+        in the value of the type alias. If the alias is not generic, this
+        argument is omitted.
+
+        Static type checkers should only support type aliases declared using
+        TypeAliasType that follow these rules:
+
+        - The first argument (the name) must be a string literal.
+        - The TypeAliasType instance must be immediately assigned to a variable
+          of the same name. (For example, 'X = TypeAliasType("Y", int)' is invalid,
+          as is 'X, Y = TypeAliasType("X", int), TypeAliasType("Y", int)').
+
+        """
+
+        def __init__(self, name: str, value, *, type_params=()):
+            if not isinstance(name, str):
+                raise TypeError("TypeAliasType name must be a string")
+            self.__value__ = value
+            self.__type_params__ = type_params
+
+            parameters = []
+            for type_param in type_params:
+                if isinstance(type_param, TypeVarTuple):
+                    parameters.extend(type_param)
+                else:
+                    parameters.append(type_param)
+            self.__parameters__ = tuple(parameters)
+            def_mod = _caller()
+            if def_mod != 'typing_extensions':
+                self.__module__ = def_mod
+            # Setting this attribute closes the TypeAliasType from further modification
+            self.__name__ = name
+
+        def __setattr__(self, name: str, value: object, /) -> None:
+            if hasattr(self, "__name__"):
+                self._raise_attribute_error(name)
+            super().__setattr__(name, value)
+
+        def __delattr__(self, name: str, /) -> Never:
+            self._raise_attribute_error(name)
+
+        def _raise_attribute_error(self, name: str) -> Never:
+            # Match the Python 3.12 error messages exactly
+            if name == "__name__":
+                raise AttributeError("readonly attribute")
+            elif name in {"__value__", "__type_params__", "__parameters__", "__module__"}:
+                raise AttributeError(
+                    f"attribute '{name}' of 'typing.TypeAliasType' objects "
+                    "is not writable"
+                )
+            else:
+                raise AttributeError(
+                    f"'typing.TypeAliasType' object has no attribute '{name}'"
+                )
+
+        def __repr__(self) -> str:
+            return self.__name__
+
+        def __getitem__(self, parameters):
+            if not isinstance(parameters, tuple):
+                parameters = (parameters,)
+            parameters = [
+                typing._type_check(
+                    item, f'Subscripting {self.__name__} requires a type.'
+                )
+                for item in parameters
+            ]
+            return typing._GenericAlias(self, tuple(parameters))
+
+        def __reduce__(self):
+            return self.__name__
+
+        def __init_subclass__(cls, *args, **kwargs):
+            raise TypeError(
+                "type 'typing_extensions.TypeAliasType' is not an acceptable base type"
+            )
+
+        # The presence of this method convinces typing._type_check
+        # that TypeAliasTypes are types.
+        def __call__(self):
+            raise TypeError("Type alias is not callable")
+
+        if sys.version_info >= (3, 10):
+            def __or__(self, right):
+                # For forward compatibility with 3.12, reject Unions
+                # that are not accepted by the built-in Union.
+                if not _is_unionable(right):
+                    return NotImplemented
+                return typing.Union[self, right]
+
+            def __ror__(self, left):
+                if not _is_unionable(left):
+                    return NotImplemented
+                return typing.Union[left, self]
+
+
+if hasattr(typing, "is_protocol"):
+    is_protocol = typing.is_protocol
+    get_protocol_members = typing.get_protocol_members
+else:
+    def is_protocol(tp: type, /) -> bool:
+        """Return True if the given type is a Protocol.
+
+        Example::
+
+            >>> from typing_extensions import Protocol, is_protocol
+            >>> class P(Protocol):
+            ...     def a(self) -> str: ...
+            ...     b: int
+            >>> is_protocol(P)
+            True
+            >>> is_protocol(int)
+            False
+        """
+        return (
+            isinstance(tp, type)
+            and getattr(tp, '_is_protocol', False)
+            and tp is not Protocol
+            and tp is not typing.Protocol
+        )
+
+    def get_protocol_members(tp: type, /) -> typing.FrozenSet[str]:
+        """Return the set of members defined in a Protocol.
+
+        Example::
+
+            >>> from typing_extensions import Protocol, get_protocol_members
+            >>> class P(Protocol):
+            ...     def a(self) -> str: ...
+            ...     b: int
+            >>> get_protocol_members(P)
+            frozenset({'a', 'b'})
+
+        Raise a TypeError for arguments that are not Protocols.
+        """
+        if not is_protocol(tp):
+            raise TypeError(f'{tp!r} is not a Protocol')
+        if hasattr(tp, '__protocol_attrs__'):
+            return frozenset(tp.__protocol_attrs__)
+        return frozenset(_get_protocol_attrs(tp))
+
+
+if hasattr(typing, "Doc"):
+    Doc = typing.Doc
+else:
+    class Doc:
+        """Define the documentation of a type annotation using ``Annotated``, to be
+         used in class attributes, function and method parameters, return values,
+         and variables.
+
+        The value should be a positional-only string literal to allow static tools
+        like editors and documentation generators to use it.
+
+        This complements docstrings.
+
+        The string value passed is available in the attribute ``documentation``.
+
+        Example::
+
+            >>> from typing_extensions import Annotated, Doc
+            >>> def hi(to: Annotated[str, Doc("Who to say hi to")]) -> None: ...
+        """
+        def __init__(self, documentation: str, /) -> None:
+            self.documentation = documentation
+
+        def __repr__(self) -> str:
+            return f"Doc({self.documentation!r})"
+
+        def __hash__(self) -> int:
+            return hash(self.documentation)
+
+        def __eq__(self, other: object) -> bool:
+            if not isinstance(other, Doc):
+                return NotImplemented
+            return self.documentation == other.documentation
+
+
+_CapsuleType = getattr(_types, "CapsuleType", None)
+
+if _CapsuleType is None:
+    try:
+        import _socket
+    except ImportError:
+        pass
+    else:
+        _CAPI = getattr(_socket, "CAPI", None)
+        if _CAPI is not None:
+            _CapsuleType = type(_CAPI)
+
+if _CapsuleType is not None:
+    CapsuleType = _CapsuleType
+    __all__.append("CapsuleType")
+
+
+# Aliases for items that have always been in typing.
+# Explicitly assign these (rather than using `from typing import *` at the top),
+# so that we get a CI error if one of these is deleted from typing.py
+# in a future version of Python
+AbstractSet = typing.AbstractSet
+AnyStr = typing.AnyStr
+BinaryIO = typing.BinaryIO
+Callable = typing.Callable
+Collection = typing.Collection
+Container = typing.Container
+Dict = typing.Dict
+ForwardRef = typing.ForwardRef
+FrozenSet = typing.FrozenSet
+Generic = typing.Generic
+Hashable = typing.Hashable
+IO = typing.IO
+ItemsView = typing.ItemsView
+Iterable = typing.Iterable
+Iterator = typing.Iterator
+KeysView = typing.KeysView
+List = typing.List
+Mapping = typing.Mapping
+MappingView = typing.MappingView
+Match = typing.Match
+MutableMapping = typing.MutableMapping
+MutableSequence = typing.MutableSequence
+MutableSet = typing.MutableSet
+Optional = typing.Optional
+Pattern = typing.Pattern
+Reversible = typing.Reversible
+Sequence = typing.Sequence
+Set = typing.Set
+Sized = typing.Sized
+TextIO = typing.TextIO
+Tuple = typing.Tuple
+Union = typing.Union
+ValuesView = typing.ValuesView
+cast = typing.cast
+no_type_check = typing.no_type_check
+no_type_check_decorator = typing.no_type_check_decorator
diff --git a/setuptools/_vendor/wheel-0.45.1.dist-info/INSTALLER b/setuptools/_vendor/wheel-0.45.1.dist-info/INSTALLER
new file mode 100644
index 0000000000..a1b589e38a
--- /dev/null
+++ b/setuptools/_vendor/wheel-0.45.1.dist-info/INSTALLER
@@ -0,0 +1 @@
+pip
diff --git a/setuptools/_vendor/wheel-0.45.1.dist-info/LICENSE.txt b/setuptools/_vendor/wheel-0.45.1.dist-info/LICENSE.txt
new file mode 100644
index 0000000000..a31470f14c
--- /dev/null
+++ b/setuptools/_vendor/wheel-0.45.1.dist-info/LICENSE.txt
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2012 Daniel Holth  and contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
diff --git a/setuptools/_vendor/wheel-0.45.1.dist-info/METADATA b/setuptools/_vendor/wheel-0.45.1.dist-info/METADATA
new file mode 100644
index 0000000000..f645dcb673
--- /dev/null
+++ b/setuptools/_vendor/wheel-0.45.1.dist-info/METADATA
@@ -0,0 +1,66 @@
+Metadata-Version: 2.3
+Name: wheel
+Version: 0.45.1
+Summary: A built-package format for Python
+Keywords: wheel,packaging
+Author-email: Daniel Holth 
+Maintainer-email: Alex Grönholm 
+Requires-Python: >=3.8
+Description-Content-Type: text/x-rst
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Intended Audience :: Developers
+Classifier: Topic :: System :: Archiving :: Packaging
+Classifier: License :: OSI Approved :: MIT License
+Classifier: Programming Language :: Python
+Classifier: Programming Language :: Python :: 3 :: Only
+Classifier: Programming Language :: Python :: 3.8
+Classifier: Programming Language :: Python :: 3.9
+Classifier: Programming Language :: Python :: 3.10
+Classifier: Programming Language :: Python :: 3.11
+Classifier: Programming Language :: Python :: 3.12
+Requires-Dist: pytest >= 6.0.0 ; extra == "test"
+Requires-Dist: setuptools >= 65 ; extra == "test"
+Project-URL: Changelog, https://wheel.readthedocs.io/en/stable/news.html
+Project-URL: Documentation, https://wheel.readthedocs.io/
+Project-URL: Issue Tracker, https://github.com/pypa/wheel/issues
+Project-URL: Source, https://github.com/pypa/wheel
+Provides-Extra: test
+
+wheel
+=====
+
+This is a command line tool for manipulating Python wheel files, as defined in
+`PEP 427`_. It contains the following functionality:
+
+* Convert ``.egg`` archives into ``.whl``
+* Unpack wheel archives
+* Repack wheel archives
+* Add or remove tags in existing wheel archives
+
+.. _PEP 427: https://www.python.org/dev/peps/pep-0427/
+
+Historical note
+---------------
+
+This project used to contain the implementation of the setuptools_ ``bdist_wheel``
+command, but as of setuptools v70.1, it no longer needs ``wheel`` installed for that to
+work. Thus, you should install this **only** if you intend to use the ``wheel`` command
+line tool!
+
+.. _setuptools: https://pypi.org/project/setuptools/
+
+Documentation
+-------------
+
+The documentation_ can be found on Read The Docs.
+
+.. _documentation: https://wheel.readthedocs.io/
+
+Code of Conduct
+---------------
+
+Everyone interacting in the wheel project's codebases, issue trackers, chat
+rooms, and mailing lists is expected to follow the `PSF Code of Conduct`_.
+
+.. _PSF Code of Conduct: https://github.com/pypa/.github/blob/main/CODE_OF_CONDUCT.md
+
diff --git a/setuptools/_vendor/wheel-0.45.1.dist-info/RECORD b/setuptools/_vendor/wheel-0.45.1.dist-info/RECORD
new file mode 100644
index 0000000000..c1535b697f
--- /dev/null
+++ b/setuptools/_vendor/wheel-0.45.1.dist-info/RECORD
@@ -0,0 +1,68 @@
+../../bin/wheel,sha256=pBhV19bQIgjS-r541fG3kLU6QtcyKaKdQ2RE9YIzeiU,249
+wheel-0.45.1.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4
+wheel-0.45.1.dist-info/LICENSE.txt,sha256=MMI2GGeRCPPo6h0qZYx8pBe9_IkcmO8aifpP8MmChlQ,1107
+wheel-0.45.1.dist-info/METADATA,sha256=mKz84H7m7jsxJyzeIcTVORiTb0NPMV39KvOIYhGgmjA,2313
+wheel-0.45.1.dist-info/RECORD,,
+wheel-0.45.1.dist-info/REQUESTED,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0
+wheel-0.45.1.dist-info/WHEEL,sha256=CpUCUxeHQbRN5UGRQHYRJorO5Af-Qy_fHMctcQ8DSGI,82
+wheel-0.45.1.dist-info/entry_points.txt,sha256=rTY1BbkPHhkGMm4Q3F0pIzJBzW2kMxoG1oriffvGdA0,104
+wheel/__init__.py,sha256=mrxMnvdXACur_LWegbUfh5g5ysWZrd63UJn890wvGNk,59
+wheel/__main__.py,sha256=NkMUnuTCGcOkgY0IBLgBCVC_BGGcWORx2K8jYGS12UE,455
+wheel/__pycache__/__init__.cpython-311.pyc,,
+wheel/__pycache__/__main__.cpython-311.pyc,,
+wheel/__pycache__/_bdist_wheel.cpython-311.pyc,,
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+wheel/__pycache__/macosx_libfile.cpython-311.pyc,,
+wheel/__pycache__/metadata.cpython-311.pyc,,
+wheel/__pycache__/util.cpython-311.pyc,,
+wheel/__pycache__/wheelfile.cpython-311.pyc,,
+wheel/_bdist_wheel.py,sha256=UghCQjSH_pVfcZh6oRjzSw_TQhcf3anSx1OkiLSL82M,21694
+wheel/_setuptools_logging.py,sha256=-5KC-lne0ilOUWIDfOkqapUWGMFZhuKYDIavIZiB5kM,781
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+wheel/vendored/__init__.py,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0
+wheel/vendored/__pycache__/__init__.cpython-311.pyc,,
+wheel/vendored/packaging/LICENSE,sha256=ytHvW9NA1z4HS6YU0m996spceUDD2MNIUuZcSQlobEg,197
+wheel/vendored/packaging/LICENSE.APACHE,sha256=DVQuDIgE45qn836wDaWnYhSdxoLXgpRRKH4RuTjpRZQ,10174
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+wheel/vendored/packaging/__pycache__/_musllinux.cpython-311.pyc,,
+wheel/vendored/packaging/__pycache__/_parser.cpython-311.pyc,,
+wheel/vendored/packaging/__pycache__/_structures.cpython-311.pyc,,
+wheel/vendored/packaging/__pycache__/_tokenizer.cpython-311.pyc,,
+wheel/vendored/packaging/__pycache__/markers.cpython-311.pyc,,
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+wheel/vendored/packaging/__pycache__/specifiers.cpython-311.pyc,,
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+wheel/vendored/packaging/_tokenizer.py,sha256=alCtbwXhOFAmFGZ6BQ-wCTSFoRAJ2z-ysIf7__MTJ_k,5292
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+wheel/vendored/packaging/specifiers.py,sha256=IWSt0SrLSP72heWhAC8UL0eGvas7XIQHjqiViVfmPKE,39778
+wheel/vendored/packaging/tags.py,sha256=fedHXiOHkBxNZTXotXv8uXPmMFU9ae-TKBujgYHigcA,18950
+wheel/vendored/packaging/utils.py,sha256=XgdmP3yx9-wQEFjO7OvMj9RjEf5JlR5HFFR69v7SQ9E,5268
+wheel/vendored/packaging/version.py,sha256=PFJaYZDxBgyxkfYhH3SQw4qfE9ICCWrTmitvq14y3bs,16234
+wheel/vendored/vendor.txt,sha256=Z2ENjB1i5prfez8CdM1Sdr3c6Zxv2rRRolMpLmBncAE,16
+wheel/wheelfile.py,sha256=USCttNlJwafxt51YYFFKG7jnxz8dfhbyqAZL6jMTA9s,8411
diff --git a/setuptools/_vendor/wheel-0.45.1.dist-info/REQUESTED b/setuptools/_vendor/wheel-0.45.1.dist-info/REQUESTED
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/setuptools/_vendor/wheel-0.45.1.dist-info/WHEEL b/setuptools/_vendor/wheel-0.45.1.dist-info/WHEEL
new file mode 100644
index 0000000000..e3c6feefa2
--- /dev/null
+++ b/setuptools/_vendor/wheel-0.45.1.dist-info/WHEEL
@@ -0,0 +1,4 @@
+Wheel-Version: 1.0
+Generator: flit 3.10.1
+Root-Is-Purelib: true
+Tag: py3-none-any
diff --git a/setuptools/_vendor/wheel-0.45.1.dist-info/entry_points.txt b/setuptools/_vendor/wheel-0.45.1.dist-info/entry_points.txt
new file mode 100644
index 0000000000..06c9f69deb
--- /dev/null
+++ b/setuptools/_vendor/wheel-0.45.1.dist-info/entry_points.txt
@@ -0,0 +1,6 @@
+[console_scripts]
+wheel=wheel.cli:main
+
+[distutils.commands]
+bdist_wheel=wheel.bdist_wheel:bdist_wheel
+
diff --git a/setuptools/_vendor/wheel/__init__.py b/setuptools/_vendor/wheel/__init__.py
new file mode 100644
index 0000000000..3ab8f72d8b
--- /dev/null
+++ b/setuptools/_vendor/wheel/__init__.py
@@ -0,0 +1,3 @@
+from __future__ import annotations
+
+__version__ = "0.45.1"
diff --git a/setuptools/_vendor/wheel/__main__.py b/setuptools/_vendor/wheel/__main__.py
new file mode 100644
index 0000000000..0be7453749
--- /dev/null
+++ b/setuptools/_vendor/wheel/__main__.py
@@ -0,0 +1,23 @@
+"""
+Wheel command line tool (enable python -m wheel syntax)
+"""
+
+from __future__ import annotations
+
+import sys
+
+
+def main():  # needed for console script
+    if __package__ == "":
+        # To be able to run 'python wheel-0.9.whl/wheel':
+        import os.path
+
+        path = os.path.dirname(os.path.dirname(__file__))
+        sys.path[0:0] = [path]
+    import wheel.cli
+
+    sys.exit(wheel.cli.main())
+
+
+if __name__ == "__main__":
+    sys.exit(main())
diff --git a/setuptools/_vendor/wheel/_bdist_wheel.py b/setuptools/_vendor/wheel/_bdist_wheel.py
new file mode 100644
index 0000000000..88973ebfb8
--- /dev/null
+++ b/setuptools/_vendor/wheel/_bdist_wheel.py
@@ -0,0 +1,613 @@
+"""
+Create a wheel (.whl) distribution.
+
+A wheel is a built archive format.
+"""
+
+from __future__ import annotations
+
+import os
+import re
+import shutil
+import stat
+import struct
+import sys
+import sysconfig
+import warnings
+from email.generator import BytesGenerator, Generator
+from email.policy import EmailPolicy
+from glob import iglob
+from shutil import rmtree
+from typing import TYPE_CHECKING, Callable, Iterable, Literal, Sequence, cast
+from zipfile import ZIP_DEFLATED, ZIP_STORED
+
+import setuptools
+from setuptools import Command
+
+from . import __version__ as wheel_version
+from .metadata import pkginfo_to_metadata
+from .util import log
+from .vendored.packaging import tags
+from .vendored.packaging import version as _packaging_version
+from .wheelfile import WheelFile
+
+if TYPE_CHECKING:
+    import types
+
+# ensure Python logging is configured
+try:
+    __import__("setuptools.logging")
+except ImportError:
+    # setuptools < ??
+    from . import _setuptools_logging
+
+    _setuptools_logging.configure()
+
+
+def safe_name(name: str) -> str:
+    """Convert an arbitrary string to a standard distribution name
+    Any runs of non-alphanumeric/. characters are replaced with a single '-'.
+    """
+    return re.sub("[^A-Za-z0-9.]+", "-", name)
+
+
+def safe_version(version: str) -> str:
+    """
+    Convert an arbitrary string to a standard version string
+    """
+    try:
+        # normalize the version
+        return str(_packaging_version.Version(version))
+    except _packaging_version.InvalidVersion:
+        version = version.replace(" ", ".")
+        return re.sub("[^A-Za-z0-9.]+", "-", version)
+
+
+setuptools_major_version = int(setuptools.__version__.split(".")[0])
+
+PY_LIMITED_API_PATTERN = r"cp3\d"
+
+
+def _is_32bit_interpreter() -> bool:
+    return struct.calcsize("P") == 4
+
+
+def python_tag() -> str:
+    return f"py{sys.version_info[0]}"
+
+
+def get_platform(archive_root: str | None) -> str:
+    """Return our platform name 'win32', 'linux_x86_64'"""
+    result = sysconfig.get_platform()
+    if result.startswith("macosx") and archive_root is not None:
+        from .macosx_libfile import calculate_macosx_platform_tag
+
+        result = calculate_macosx_platform_tag(archive_root, result)
+    elif _is_32bit_interpreter():
+        if result == "linux-x86_64":
+            # pip pull request #3497
+            result = "linux-i686"
+        elif result == "linux-aarch64":
+            # packaging pull request #234
+            # TODO armv8l, packaging pull request #690 => this did not land
+            # in pip/packaging yet
+            result = "linux-armv7l"
+
+    return result.replace("-", "_")
+
+
+def get_flag(
+    var: str, fallback: bool, expected: bool = True, warn: bool = True
+) -> bool:
+    """Use a fallback value for determining SOABI flags if the needed config
+    var is unset or unavailable."""
+    val = sysconfig.get_config_var(var)
+    if val is None:
+        if warn:
+            warnings.warn(
+                f"Config variable '{var}' is unset, Python ABI tag may be incorrect",
+                RuntimeWarning,
+                stacklevel=2,
+            )
+        return fallback
+    return val == expected
+
+
+def get_abi_tag() -> str | None:
+    """Return the ABI tag based on SOABI (if available) or emulate SOABI (PyPy2)."""
+    soabi: str = sysconfig.get_config_var("SOABI")
+    impl = tags.interpreter_name()
+    if not soabi and impl in ("cp", "pp") and hasattr(sys, "maxunicode"):
+        d = ""
+        m = ""
+        u = ""
+        if get_flag("Py_DEBUG", hasattr(sys, "gettotalrefcount"), warn=(impl == "cp")):
+            d = "d"
+
+        if get_flag(
+            "WITH_PYMALLOC",
+            impl == "cp",
+            warn=(impl == "cp" and sys.version_info < (3, 8)),
+        ) and sys.version_info < (3, 8):
+            m = "m"
+
+        abi = f"{impl}{tags.interpreter_version()}{d}{m}{u}"
+    elif soabi and impl == "cp" and soabi.startswith("cpython"):
+        # non-Windows
+        abi = "cp" + soabi.split("-")[1]
+    elif soabi and impl == "cp" and soabi.startswith("cp"):
+        # Windows
+        abi = soabi.split("-")[0]
+    elif soabi and impl == "pp":
+        # we want something like pypy36-pp73
+        abi = "-".join(soabi.split("-")[:2])
+        abi = abi.replace(".", "_").replace("-", "_")
+    elif soabi and impl == "graalpy":
+        abi = "-".join(soabi.split("-")[:3])
+        abi = abi.replace(".", "_").replace("-", "_")
+    elif soabi:
+        abi = soabi.replace(".", "_").replace("-", "_")
+    else:
+        abi = None
+
+    return abi
+
+
+def safer_name(name: str) -> str:
+    return safe_name(name).replace("-", "_")
+
+
+def safer_version(version: str) -> str:
+    return safe_version(version).replace("-", "_")
+
+
+def remove_readonly(
+    func: Callable[..., object],
+    path: str,
+    excinfo: tuple[type[Exception], Exception, types.TracebackType],
+) -> None:
+    remove_readonly_exc(func, path, excinfo[1])
+
+
+def remove_readonly_exc(func: Callable[..., object], path: str, exc: Exception) -> None:
+    os.chmod(path, stat.S_IWRITE)
+    func(path)
+
+
+class bdist_wheel(Command):
+    description = "create a wheel distribution"
+
+    supported_compressions = {
+        "stored": ZIP_STORED,
+        "deflated": ZIP_DEFLATED,
+    }
+
+    user_options = [
+        ("bdist-dir=", "b", "temporary directory for creating the distribution"),
+        (
+            "plat-name=",
+            "p",
+            "platform name to embed in generated filenames "
+            f"(default: {get_platform(None)})",
+        ),
+        (
+            "keep-temp",
+            "k",
+            "keep the pseudo-installation tree around after "
+            "creating the distribution archive",
+        ),
+        ("dist-dir=", "d", "directory to put final built distributions in"),
+        ("skip-build", None, "skip rebuilding everything (for testing/debugging)"),
+        (
+            "relative",
+            None,
+            "build the archive using relative paths (default: false)",
+        ),
+        (
+            "owner=",
+            "u",
+            "Owner name used when creating a tar file [default: current user]",
+        ),
+        (
+            "group=",
+            "g",
+            "Group name used when creating a tar file [default: current group]",
+        ),
+        ("universal", None, "make a universal wheel (default: false)"),
+        (
+            "compression=",
+            None,
+            "zipfile compression (one of: {}) (default: 'deflated')".format(
+                ", ".join(supported_compressions)
+            ),
+        ),
+        (
+            "python-tag=",
+            None,
+            f"Python implementation compatibility tag (default: '{python_tag()}')",
+        ),
+        (
+            "build-number=",
+            None,
+            "Build number for this particular version. "
+            "As specified in PEP-0427, this must start with a digit. "
+            "[default: None]",
+        ),
+        (
+            "py-limited-api=",
+            None,
+            "Python tag (cp32|cp33|cpNN) for abi3 wheel tag (default: false)",
+        ),
+    ]
+
+    boolean_options = ["keep-temp", "skip-build", "relative", "universal"]
+
+    def initialize_options(self):
+        self.bdist_dir: str = None
+        self.data_dir = None
+        self.plat_name: str | None = None
+        self.plat_tag = None
+        self.format = "zip"
+        self.keep_temp = False
+        self.dist_dir: str | None = None
+        self.egginfo_dir = None
+        self.root_is_pure: bool | None = None
+        self.skip_build = None
+        self.relative = False
+        self.owner = None
+        self.group = None
+        self.universal: bool = False
+        self.compression: str | int = "deflated"
+        self.python_tag: str = python_tag()
+        self.build_number: str | None = None
+        self.py_limited_api: str | Literal[False] = False
+        self.plat_name_supplied = False
+
+    def finalize_options(self):
+        if self.bdist_dir is None:
+            bdist_base = self.get_finalized_command("bdist").bdist_base
+            self.bdist_dir = os.path.join(bdist_base, "wheel")
+
+        egg_info = self.distribution.get_command_obj("egg_info")
+        egg_info.ensure_finalized()  # needed for correct `wheel_dist_name`
+
+        self.data_dir = self.wheel_dist_name + ".data"
+        self.plat_name_supplied = self.plat_name is not None
+
+        try:
+            self.compression = self.supported_compressions[self.compression]
+        except KeyError:
+            raise ValueError(f"Unsupported compression: {self.compression}") from None
+
+        need_options = ("dist_dir", "plat_name", "skip_build")
+
+        self.set_undefined_options("bdist", *zip(need_options, need_options))
+
+        self.root_is_pure = not (
+            self.distribution.has_ext_modules() or self.distribution.has_c_libraries()
+        )
+
+        if self.py_limited_api and not re.match(
+            PY_LIMITED_API_PATTERN, self.py_limited_api
+        ):
+            raise ValueError(f"py-limited-api must match '{PY_LIMITED_API_PATTERN}'")
+
+        # Support legacy [wheel] section for setting universal
+        wheel = self.distribution.get_option_dict("wheel")
+        if "universal" in wheel:
+            # please don't define this in your global configs
+            log.warning(
+                "The [wheel] section is deprecated. Use [bdist_wheel] instead.",
+            )
+            val = wheel["universal"][1].strip()
+            if val.lower() in ("1", "true", "yes"):
+                self.universal = True
+
+        if self.build_number is not None and not self.build_number[:1].isdigit():
+            raise ValueError("Build tag (build-number) must start with a digit.")
+
+    @property
+    def wheel_dist_name(self):
+        """Return distribution full name with - replaced with _"""
+        components = (
+            safer_name(self.distribution.get_name()),
+            safer_version(self.distribution.get_version()),
+        )
+        if self.build_number:
+            components += (self.build_number,)
+        return "-".join(components)
+
+    def get_tag(self) -> tuple[str, str, str]:
+        # bdist sets self.plat_name if unset, we should only use it for purepy
+        # wheels if the user supplied it.
+        if self.plat_name_supplied:
+            plat_name = cast(str, self.plat_name)
+        elif self.root_is_pure:
+            plat_name = "any"
+        else:
+            # macosx contains system version in platform name so need special handle
+            if self.plat_name and not self.plat_name.startswith("macosx"):
+                plat_name = self.plat_name
+            else:
+                # on macosx always limit the platform name to comply with any
+                # c-extension modules in bdist_dir, since the user can specify
+                # a higher MACOSX_DEPLOYMENT_TARGET via tools like CMake
+
+                # on other platforms, and on macosx if there are no c-extension
+                # modules, use the default platform name.
+                plat_name = get_platform(self.bdist_dir)
+
+            if _is_32bit_interpreter():
+                if plat_name in ("linux-x86_64", "linux_x86_64"):
+                    plat_name = "linux_i686"
+                if plat_name in ("linux-aarch64", "linux_aarch64"):
+                    # TODO armv8l, packaging pull request #690 => this did not land
+                    # in pip/packaging yet
+                    plat_name = "linux_armv7l"
+
+        plat_name = (
+            plat_name.lower().replace("-", "_").replace(".", "_").replace(" ", "_")
+        )
+
+        if self.root_is_pure:
+            if self.universal:
+                impl = "py2.py3"
+            else:
+                impl = self.python_tag
+            tag = (impl, "none", plat_name)
+        else:
+            impl_name = tags.interpreter_name()
+            impl_ver = tags.interpreter_version()
+            impl = impl_name + impl_ver
+            # We don't work on CPython 3.1, 3.0.
+            if self.py_limited_api and (impl_name + impl_ver).startswith("cp3"):
+                impl = self.py_limited_api
+                abi_tag = "abi3"
+            else:
+                abi_tag = str(get_abi_tag()).lower()
+            tag = (impl, abi_tag, plat_name)
+            # issue gh-374: allow overriding plat_name
+            supported_tags = [
+                (t.interpreter, t.abi, plat_name) for t in tags.sys_tags()
+            ]
+            assert (
+                tag in supported_tags
+            ), f"would build wheel with unsupported tag {tag}"
+        return tag
+
+    def run(self):
+        build_scripts = self.reinitialize_command("build_scripts")
+        build_scripts.executable = "python"
+        build_scripts.force = True
+
+        build_ext = self.reinitialize_command("build_ext")
+        build_ext.inplace = False
+
+        if not self.skip_build:
+            self.run_command("build")
+
+        install = self.reinitialize_command("install", reinit_subcommands=True)
+        install.root = self.bdist_dir
+        install.compile = False
+        install.skip_build = self.skip_build
+        install.warn_dir = False
+
+        # A wheel without setuptools scripts is more cross-platform.
+        # Use the (undocumented) `no_ep` option to setuptools'
+        # install_scripts command to avoid creating entry point scripts.
+        install_scripts = self.reinitialize_command("install_scripts")
+        install_scripts.no_ep = True
+
+        # Use a custom scheme for the archive, because we have to decide
+        # at installation time which scheme to use.
+        for key in ("headers", "scripts", "data", "purelib", "platlib"):
+            setattr(install, "install_" + key, os.path.join(self.data_dir, key))
+
+        basedir_observed = ""
+
+        if os.name == "nt":
+            # win32 barfs if any of these are ''; could be '.'?
+            # (distutils.command.install:change_roots bug)
+            basedir_observed = os.path.normpath(os.path.join(self.data_dir, ".."))
+            self.install_libbase = self.install_lib = basedir_observed
+
+        setattr(
+            install,
+            "install_purelib" if self.root_is_pure else "install_platlib",
+            basedir_observed,
+        )
+
+        log.info(f"installing to {self.bdist_dir}")
+
+        self.run_command("install")
+
+        impl_tag, abi_tag, plat_tag = self.get_tag()
+        archive_basename = f"{self.wheel_dist_name}-{impl_tag}-{abi_tag}-{plat_tag}"
+        if not self.relative:
+            archive_root = self.bdist_dir
+        else:
+            archive_root = os.path.join(
+                self.bdist_dir, self._ensure_relative(install.install_base)
+            )
+
+        self.set_undefined_options("install_egg_info", ("target", "egginfo_dir"))
+        distinfo_dirname = (
+            f"{safer_name(self.distribution.get_name())}-"
+            f"{safer_version(self.distribution.get_version())}.dist-info"
+        )
+        distinfo_dir = os.path.join(self.bdist_dir, distinfo_dirname)
+        self.egg2dist(self.egginfo_dir, distinfo_dir)
+
+        self.write_wheelfile(distinfo_dir)
+
+        # Make the archive
+        if not os.path.exists(self.dist_dir):
+            os.makedirs(self.dist_dir)
+
+        wheel_path = os.path.join(self.dist_dir, archive_basename + ".whl")
+        with WheelFile(wheel_path, "w", self.compression) as wf:
+            wf.write_files(archive_root)
+
+        # Add to 'Distribution.dist_files' so that the "upload" command works
+        getattr(self.distribution, "dist_files", []).append(
+            (
+                "bdist_wheel",
+                "{}.{}".format(*sys.version_info[:2]),  # like 3.7
+                wheel_path,
+            )
+        )
+
+        if not self.keep_temp:
+            log.info(f"removing {self.bdist_dir}")
+            if not self.dry_run:
+                if sys.version_info < (3, 12):
+                    rmtree(self.bdist_dir, onerror=remove_readonly)
+                else:
+                    rmtree(self.bdist_dir, onexc=remove_readonly_exc)
+
+    def write_wheelfile(
+        self, wheelfile_base: str, generator: str = f"bdist_wheel ({wheel_version})"
+    ):
+        from email.message import Message
+
+        msg = Message()
+        msg["Wheel-Version"] = "1.0"  # of the spec
+        msg["Generator"] = generator
+        msg["Root-Is-Purelib"] = str(self.root_is_pure).lower()
+        if self.build_number is not None:
+            msg["Build"] = self.build_number
+
+        # Doesn't work for bdist_wininst
+        impl_tag, abi_tag, plat_tag = self.get_tag()
+        for impl in impl_tag.split("."):
+            for abi in abi_tag.split("."):
+                for plat in plat_tag.split("."):
+                    msg["Tag"] = "-".join((impl, abi, plat))
+
+        wheelfile_path = os.path.join(wheelfile_base, "WHEEL")
+        log.info(f"creating {wheelfile_path}")
+        with open(wheelfile_path, "wb") as f:
+            BytesGenerator(f, maxheaderlen=0).flatten(msg)
+
+    def _ensure_relative(self, path: str) -> str:
+        # copied from dir_util, deleted
+        drive, path = os.path.splitdrive(path)
+        if path[0:1] == os.sep:
+            path = drive + path[1:]
+        return path
+
+    @property
+    def license_paths(self) -> Iterable[str]:
+        if setuptools_major_version >= 57:
+            # Setuptools has resolved any patterns to actual file names
+            return self.distribution.metadata.license_files or ()
+
+        files: set[str] = set()
+        metadata = self.distribution.get_option_dict("metadata")
+        if setuptools_major_version >= 42:
+            # Setuptools recognizes the license_files option but does not do globbing
+            patterns = cast(Sequence[str], self.distribution.metadata.license_files)
+        else:
+            # Prior to those, wheel is entirely responsible for handling license files
+            if "license_files" in metadata:
+                patterns = metadata["license_files"][1].split()
+            else:
+                patterns = ()
+
+        if "license_file" in metadata:
+            warnings.warn(
+                'The "license_file" option is deprecated. Use "license_files" instead.',
+                DeprecationWarning,
+                stacklevel=2,
+            )
+            files.add(metadata["license_file"][1])
+
+        if not files and not patterns and not isinstance(patterns, list):
+            patterns = ("LICEN[CS]E*", "COPYING*", "NOTICE*", "AUTHORS*")
+
+        for pattern in patterns:
+            for path in iglob(pattern):
+                if path.endswith("~"):
+                    log.debug(
+                        f'ignoring license file "{path}" as it looks like a backup'
+                    )
+                    continue
+
+                if path not in files and os.path.isfile(path):
+                    log.info(
+                        f'adding license file "{path}" (matched pattern "{pattern}")'
+                    )
+                    files.add(path)
+
+        return files
+
+    def egg2dist(self, egginfo_path: str, distinfo_path: str):
+        """Convert an .egg-info directory into a .dist-info directory"""
+
+        def adios(p: str) -> None:
+            """Appropriately delete directory, file or link."""
+            if os.path.exists(p) and not os.path.islink(p) and os.path.isdir(p):
+                shutil.rmtree(p)
+            elif os.path.exists(p):
+                os.unlink(p)
+
+        adios(distinfo_path)
+
+        if not os.path.exists(egginfo_path):
+            # There is no egg-info. This is probably because the egg-info
+            # file/directory is not named matching the distribution name used
+            # to name the archive file. Check for this case and report
+            # accordingly.
+            import glob
+
+            pat = os.path.join(os.path.dirname(egginfo_path), "*.egg-info")
+            possible = glob.glob(pat)
+            err = f"Egg metadata expected at {egginfo_path} but not found"
+            if possible:
+                alt = os.path.basename(possible[0])
+                err += f" ({alt} found - possible misnamed archive file?)"
+
+            raise ValueError(err)
+
+        if os.path.isfile(egginfo_path):
+            # .egg-info is a single file
+            pkg_info = pkginfo_to_metadata(egginfo_path, egginfo_path)
+            os.mkdir(distinfo_path)
+        else:
+            # .egg-info is a directory
+            pkginfo_path = os.path.join(egginfo_path, "PKG-INFO")
+            pkg_info = pkginfo_to_metadata(egginfo_path, pkginfo_path)
+
+            # ignore common egg metadata that is useless to wheel
+            shutil.copytree(
+                egginfo_path,
+                distinfo_path,
+                ignore=lambda x, y: {
+                    "PKG-INFO",
+                    "requires.txt",
+                    "SOURCES.txt",
+                    "not-zip-safe",
+                },
+            )
+
+            # delete dependency_links if it is only whitespace
+            dependency_links_path = os.path.join(distinfo_path, "dependency_links.txt")
+            with open(dependency_links_path, encoding="utf-8") as dependency_links_file:
+                dependency_links = dependency_links_file.read().strip()
+            if not dependency_links:
+                adios(dependency_links_path)
+
+        pkg_info_path = os.path.join(distinfo_path, "METADATA")
+        serialization_policy = EmailPolicy(
+            utf8=True,
+            mangle_from_=False,
+            max_line_length=0,
+        )
+        with open(pkg_info_path, "w", encoding="utf-8") as out:
+            Generator(out, policy=serialization_policy).flatten(pkg_info)
+
+        for license_path in self.license_paths:
+            filename = os.path.basename(license_path)
+            shutil.copy(license_path, os.path.join(distinfo_path, filename))
+
+        adios(egginfo_path)
diff --git a/setuptools/_vendor/wheel/_setuptools_logging.py b/setuptools/_vendor/wheel/_setuptools_logging.py
new file mode 100644
index 0000000000..a1a2482ba2
--- /dev/null
+++ b/setuptools/_vendor/wheel/_setuptools_logging.py
@@ -0,0 +1,26 @@
+# copied from setuptools.logging, omitting monkeypatching
+from __future__ import annotations
+
+import logging
+import sys
+
+
+def _not_warning(record: logging.LogRecord) -> bool:
+    return record.levelno < logging.WARNING
+
+
+def configure() -> None:
+    """
+    Configure logging to emit warning and above to stderr
+    and everything else to stdout. This behavior is provided
+    for compatibility with distutils.log but may change in
+    the future.
+    """
+    err_handler = logging.StreamHandler()
+    err_handler.setLevel(logging.WARNING)
+    out_handler = logging.StreamHandler(sys.stdout)
+    out_handler.addFilter(_not_warning)
+    handlers = err_handler, out_handler
+    logging.basicConfig(
+        format="{message}", style="{", handlers=handlers, level=logging.DEBUG
+    )
diff --git a/setuptools/_vendor/wheel/bdist_wheel.py b/setuptools/_vendor/wheel/bdist_wheel.py
new file mode 100644
index 0000000000..dd7b8629e5
--- /dev/null
+++ b/setuptools/_vendor/wheel/bdist_wheel.py
@@ -0,0 +1,26 @@
+from typing import TYPE_CHECKING
+from warnings import warn
+
+warn(
+    "The 'wheel' package is no longer the canonical location of the 'bdist_wheel' "
+    "command, and will be removed in a future release. Please update to setuptools "
+    "v70.1 or later which contains an integrated version of this command.",
+    DeprecationWarning,
+    stacklevel=1,
+)
+
+if TYPE_CHECKING:
+    from ._bdist_wheel import bdist_wheel as bdist_wheel
+else:
+    try:
+        # Better integration/compatibility with setuptools:
+        # in the case new fixes or PEPs are implemented in setuptools
+        # there is no need to backport them to the deprecated code base.
+        # This is useful in the case of old packages in the ecosystem
+        # that are still used but have low maintenance.
+        from setuptools.command.bdist_wheel import bdist_wheel
+    except ImportError:
+        # Only used in the case of old setuptools versions.
+        # If the user wants to get the latest fixes/PEPs,
+        # they are encouraged to address the deprecation warning.
+        from ._bdist_wheel import bdist_wheel as bdist_wheel
diff --git a/setuptools/_vendor/wheel/cli/__init__.py b/setuptools/_vendor/wheel/cli/__init__.py
new file mode 100644
index 0000000000..6ba1217f5b
--- /dev/null
+++ b/setuptools/_vendor/wheel/cli/__init__.py
@@ -0,0 +1,155 @@
+"""
+Wheel command-line utility.
+"""
+
+from __future__ import annotations
+
+import argparse
+import os
+import sys
+from argparse import ArgumentTypeError
+
+
+class WheelError(Exception):
+    pass
+
+
+def unpack_f(args: argparse.Namespace) -> None:
+    from .unpack import unpack
+
+    unpack(args.wheelfile, args.dest)
+
+
+def pack_f(args: argparse.Namespace) -> None:
+    from .pack import pack
+
+    pack(args.directory, args.dest_dir, args.build_number)
+
+
+def convert_f(args: argparse.Namespace) -> None:
+    from .convert import convert
+
+    convert(args.files, args.dest_dir, args.verbose)
+
+
+def tags_f(args: argparse.Namespace) -> None:
+    from .tags import tags
+
+    names = (
+        tags(
+            wheel,
+            args.python_tag,
+            args.abi_tag,
+            args.platform_tag,
+            args.build,
+            args.remove,
+        )
+        for wheel in args.wheel
+    )
+
+    for name in names:
+        print(name)
+
+
+def version_f(args: argparse.Namespace) -> None:
+    from .. import __version__
+
+    print(f"wheel {__version__}")
+
+
+def parse_build_tag(build_tag: str) -> str:
+    if build_tag and not build_tag[0].isdigit():
+        raise ArgumentTypeError("build tag must begin with a digit")
+    elif "-" in build_tag:
+        raise ArgumentTypeError("invalid character ('-') in build tag")
+
+    return build_tag
+
+
+TAGS_HELP = """\
+Make a new wheel with given tags. Any tags unspecified will remain the same.
+Starting the tags with a "+" will append to the existing tags. Starting with a
+"-" will remove a tag (use --option=-TAG syntax). Multiple tags can be
+separated by ".". The original file will remain unless --remove is given.  The
+output filename(s) will be displayed on stdout for further processing.
+"""
+
+
+def parser():
+    p = argparse.ArgumentParser()
+    s = p.add_subparsers(help="commands")
+
+    unpack_parser = s.add_parser("unpack", help="Unpack wheel")
+    unpack_parser.add_argument(
+        "--dest", "-d", help="Destination directory", default="."
+    )
+    unpack_parser.add_argument("wheelfile", help="Wheel file")
+    unpack_parser.set_defaults(func=unpack_f)
+
+    repack_parser = s.add_parser("pack", help="Repack wheel")
+    repack_parser.add_argument("directory", help="Root directory of the unpacked wheel")
+    repack_parser.add_argument(
+        "--dest-dir",
+        "-d",
+        default=os.path.curdir,
+        help="Directory to store the wheel (default %(default)s)",
+    )
+    repack_parser.add_argument(
+        "--build-number", help="Build tag to use in the wheel name"
+    )
+    repack_parser.set_defaults(func=pack_f)
+
+    convert_parser = s.add_parser("convert", help="Convert egg or wininst to wheel")
+    convert_parser.add_argument("files", nargs="*", help="Files to convert")
+    convert_parser.add_argument(
+        "--dest-dir",
+        "-d",
+        default=os.path.curdir,
+        help="Directory to store wheels (default %(default)s)",
+    )
+    convert_parser.add_argument("--verbose", "-v", action="store_true")
+    convert_parser.set_defaults(func=convert_f)
+
+    tags_parser = s.add_parser(
+        "tags", help="Add or replace the tags on a wheel", description=TAGS_HELP
+    )
+    tags_parser.add_argument("wheel", nargs="*", help="Existing wheel(s) to retag")
+    tags_parser.add_argument(
+        "--remove",
+        action="store_true",
+        help="Remove the original files, keeping only the renamed ones",
+    )
+    tags_parser.add_argument(
+        "--python-tag", metavar="TAG", help="Specify an interpreter tag(s)"
+    )
+    tags_parser.add_argument("--abi-tag", metavar="TAG", help="Specify an ABI tag(s)")
+    tags_parser.add_argument(
+        "--platform-tag", metavar="TAG", help="Specify a platform tag(s)"
+    )
+    tags_parser.add_argument(
+        "--build", type=parse_build_tag, metavar="BUILD", help="Specify a build tag"
+    )
+    tags_parser.set_defaults(func=tags_f)
+
+    version_parser = s.add_parser("version", help="Print version and exit")
+    version_parser.set_defaults(func=version_f)
+
+    help_parser = s.add_parser("help", help="Show this help")
+    help_parser.set_defaults(func=lambda args: p.print_help())
+
+    return p
+
+
+def main():
+    p = parser()
+    args = p.parse_args()
+    if not hasattr(args, "func"):
+        p.print_help()
+    else:
+        try:
+            args.func(args)
+            return 0
+        except WheelError as e:
+            print(e, file=sys.stderr)
+
+    return 1
diff --git a/setuptools/_vendor/wheel/cli/convert.py b/setuptools/_vendor/wheel/cli/convert.py
new file mode 100644
index 0000000000..61d4775c58
--- /dev/null
+++ b/setuptools/_vendor/wheel/cli/convert.py
@@ -0,0 +1,332 @@
+from __future__ import annotations
+
+import os.path
+import re
+from abc import ABCMeta, abstractmethod
+from collections import defaultdict
+from collections.abc import Iterator
+from email.message import Message
+from email.parser import Parser
+from email.policy import EmailPolicy
+from glob import iglob
+from pathlib import Path
+from textwrap import dedent
+from zipfile import ZipFile
+
+from .. import __version__
+from ..metadata import generate_requirements
+from ..vendored.packaging.tags import parse_tag
+from ..wheelfile import WheelFile
+
+egg_filename_re = re.compile(
+    r"""
+    (?P.+?)-(?P.+?)
+    (-(?Ppy\d\.\d+)
+     (-(?P.+?))?
+    )?.egg$""",
+    re.VERBOSE,
+)
+egg_info_re = re.compile(
+    r"""
+    ^(?P.+?)-(?P.+?)
+    (-(?Ppy\d\.\d+)
+    )?.egg-info/""",
+    re.VERBOSE,
+)
+wininst_re = re.compile(
+    r"\.(?Pwin32|win-amd64)(?:-(?Ppy\d\.\d))?\.exe$"
+)
+pyd_re = re.compile(r"\.(?P[a-z0-9]+)-(?Pwin32|win_amd64)\.pyd$")
+serialization_policy = EmailPolicy(
+    utf8=True,
+    mangle_from_=False,
+    max_line_length=0,
+)
+GENERATOR = f"wheel {__version__}"
+
+
+def convert_requires(requires: str, metadata: Message) -> None:
+    extra: str | None = None
+    requirements: dict[str | None, list[str]] = defaultdict(list)
+    for line in requires.splitlines():
+        line = line.strip()
+        if not line:
+            continue
+
+        if line.startswith("[") and line.endswith("]"):
+            extra = line[1:-1]
+            continue
+
+        requirements[extra].append(line)
+
+    for key, value in generate_requirements(requirements):
+        metadata.add_header(key, value)
+
+
+def convert_pkg_info(pkginfo: str, metadata: Message):
+    parsed_message = Parser().parsestr(pkginfo)
+    for key, value in parsed_message.items():
+        key_lower = key.lower()
+        if value == "UNKNOWN":
+            continue
+
+        if key_lower == "description":
+            description_lines = value.splitlines()
+            value = "\n".join(
+                (
+                    description_lines[0].lstrip(),
+                    dedent("\n".join(description_lines[1:])),
+                    "\n",
+                )
+            )
+            metadata.set_payload(value)
+        elif key_lower == "home-page":
+            metadata.add_header("Project-URL", f"Homepage, {value}")
+        elif key_lower == "download-url":
+            metadata.add_header("Project-URL", f"Download, {value}")
+        else:
+            metadata.add_header(key, value)
+
+    metadata.replace_header("Metadata-Version", "2.4")
+
+
+def normalize(name: str) -> str:
+    return re.sub(r"[-_.]+", "-", name).lower().replace("-", "_")
+
+
+class ConvertSource(metaclass=ABCMeta):
+    name: str
+    version: str
+    pyver: str = "py2.py3"
+    abi: str = "none"
+    platform: str = "any"
+    metadata: Message
+
+    @property
+    def dist_info_dir(self) -> str:
+        return f"{self.name}-{self.version}.dist-info"
+
+    @abstractmethod
+    def generate_contents(self) -> Iterator[tuple[str, bytes]]:
+        pass
+
+
+class EggFileSource(ConvertSource):
+    def __init__(self, path: Path):
+        if not (match := egg_filename_re.match(path.name)):
+            raise ValueError(f"Invalid egg file name: {path.name}")
+
+        # Binary wheels are assumed to be for CPython
+        self.path = path
+        self.name = normalize(match.group("name"))
+        self.version = match.group("ver")
+        if pyver := match.group("pyver"):
+            self.pyver = pyver.replace(".", "")
+            if arch := match.group("arch"):
+                self.abi = self.pyver.replace("py", "cp")
+                self.platform = normalize(arch)
+
+        self.metadata = Message()
+
+    def generate_contents(self) -> Iterator[tuple[str, bytes]]:
+        with ZipFile(self.path, "r") as zip_file:
+            for filename in sorted(zip_file.namelist()):
+                # Skip pure directory entries
+                if filename.endswith("/"):
+                    continue
+
+                # Handle files in the egg-info directory specially, selectively moving
+                # them to the dist-info directory while converting as needed
+                if filename.startswith("EGG-INFO/"):
+                    if filename == "EGG-INFO/requires.txt":
+                        requires = zip_file.read(filename).decode("utf-8")
+                        convert_requires(requires, self.metadata)
+                    elif filename == "EGG-INFO/PKG-INFO":
+                        pkginfo = zip_file.read(filename).decode("utf-8")
+                        convert_pkg_info(pkginfo, self.metadata)
+                    elif filename == "EGG-INFO/entry_points.txt":
+                        yield (
+                            f"{self.dist_info_dir}/entry_points.txt",
+                            zip_file.read(filename),
+                        )
+
+                    continue
+
+                # For any other file, just pass it through
+                yield filename, zip_file.read(filename)
+
+
+class EggDirectorySource(EggFileSource):
+    def generate_contents(self) -> Iterator[tuple[str, bytes]]:
+        for dirpath, _, filenames in os.walk(self.path):
+            for filename in sorted(filenames):
+                path = Path(dirpath, filename)
+                if path.parent.name == "EGG-INFO":
+                    if path.name == "requires.txt":
+                        requires = path.read_text("utf-8")
+                        convert_requires(requires, self.metadata)
+                    elif path.name == "PKG-INFO":
+                        pkginfo = path.read_text("utf-8")
+                        convert_pkg_info(pkginfo, self.metadata)
+                        if name := self.metadata.get("Name"):
+                            self.name = normalize(name)
+
+                        if version := self.metadata.get("Version"):
+                            self.version = version
+                    elif path.name == "entry_points.txt":
+                        yield (
+                            f"{self.dist_info_dir}/entry_points.txt",
+                            path.read_bytes(),
+                        )
+
+                    continue
+
+                # For any other file, just pass it through
+                yield str(path.relative_to(self.path)), path.read_bytes()
+
+
+class WininstFileSource(ConvertSource):
+    """
+    Handles distributions created with ``bdist_wininst``.
+
+    The egginfo filename has the format::
+
+        name-ver(-pyver)(-arch).egg-info
+
+    The installer filename has the format::
+
+        name-ver.arch(-pyver).exe
+
+    Some things to note:
+
+    1. The installer filename is not definitive. An installer can be renamed
+       and work perfectly well as an installer. So more reliable data should
+       be used whenever possible.
+    2. The egg-info data should be preferred for the name and version, because
+       these come straight from the distutils metadata, and are mandatory.
+    3. The pyver from the egg-info data should be ignored, as it is
+       constructed from the version of Python used to build the installer,
+       which is irrelevant - the installer filename is correct here (even to
+       the point that when it's not there, any version is implied).
+    4. The architecture must be taken from the installer filename, as it is
+       not included in the egg-info data.
+    5. Architecture-neutral installers still have an architecture because the
+       installer format itself (being executable) is architecture-specific. We
+       should therefore ignore the architecture if the content is pure-python.
+    """
+
+    def __init__(self, path: Path):
+        self.path = path
+        self.metadata = Message()
+
+        # Determine the initial architecture and Python version from the file name
+        # (if possible)
+        if match := wininst_re.search(path.name):
+            self.platform = normalize(match.group("platform"))
+            if pyver := match.group("pyver"):
+                self.pyver = pyver.replace(".", "")
+
+        # Look for an .egg-info directory and any .pyd files for more precise info
+        egg_info_found = pyd_found = False
+        with ZipFile(self.path) as zip_file:
+            for filename in zip_file.namelist():
+                prefix, filename = filename.split("/", 1)
+                if not egg_info_found and (match := egg_info_re.match(filename)):
+                    egg_info_found = True
+                    self.name = normalize(match.group("name"))
+                    self.version = match.group("ver")
+                    if pyver := match.group("pyver"):
+                        self.pyver = pyver.replace(".", "")
+                elif not pyd_found and (match := pyd_re.search(filename)):
+                    pyd_found = True
+                    self.abi = match.group("abi")
+                    self.platform = match.group("platform")
+
+                if egg_info_found and pyd_found:
+                    break
+
+    def generate_contents(self) -> Iterator[tuple[str, bytes]]:
+        dist_info_dir = f"{self.name}-{self.version}.dist-info"
+        data_dir = f"{self.name}-{self.version}.data"
+        with ZipFile(self.path, "r") as zip_file:
+            for filename in sorted(zip_file.namelist()):
+                # Skip pure directory entries
+                if filename.endswith("/"):
+                    continue
+
+                # Handle files in the egg-info directory specially, selectively moving
+                # them to the dist-info directory while converting as needed
+                prefix, target_filename = filename.split("/", 1)
+                if egg_info_re.search(target_filename):
+                    basename = target_filename.rsplit("/", 1)[-1]
+                    if basename == "requires.txt":
+                        requires = zip_file.read(filename).decode("utf-8")
+                        convert_requires(requires, self.metadata)
+                    elif basename == "PKG-INFO":
+                        pkginfo = zip_file.read(filename).decode("utf-8")
+                        convert_pkg_info(pkginfo, self.metadata)
+                    elif basename == "entry_points.txt":
+                        yield (
+                            f"{dist_info_dir}/entry_points.txt",
+                            zip_file.read(filename),
+                        )
+
+                    continue
+                elif prefix == "SCRIPTS":
+                    target_filename = f"{data_dir}/scripts/{target_filename}"
+
+                # For any other file, just pass it through
+                yield target_filename, zip_file.read(filename)
+
+
+def convert(files: list[str], dest_dir: str, verbose: bool) -> None:
+    for pat in files:
+        for archive in iglob(pat):
+            path = Path(archive)
+            if path.suffix == ".egg":
+                if path.is_dir():
+                    source: ConvertSource = EggDirectorySource(path)
+                else:
+                    source = EggFileSource(path)
+            else:
+                source = WininstFileSource(path)
+
+            if verbose:
+                print(f"{archive}...", flush=True, end="")
+
+            dest_path = Path(dest_dir) / (
+                f"{source.name}-{source.version}-{source.pyver}-{source.abi}"
+                f"-{source.platform}.whl"
+            )
+            with WheelFile(dest_path, "w") as wheelfile:
+                for name_or_zinfo, contents in source.generate_contents():
+                    wheelfile.writestr(name_or_zinfo, contents)
+
+                # Write the METADATA file
+                wheelfile.writestr(
+                    f"{source.dist_info_dir}/METADATA",
+                    source.metadata.as_string(policy=serialization_policy).encode(
+                        "utf-8"
+                    ),
+                )
+
+                # Write the WHEEL file
+                wheel_message = Message()
+                wheel_message.add_header("Wheel-Version", "1.0")
+                wheel_message.add_header("Generator", GENERATOR)
+                wheel_message.add_header(
+                    "Root-Is-Purelib", str(source.platform == "any").lower()
+                )
+                tags = parse_tag(f"{source.pyver}-{source.abi}-{source.platform}")
+                for tag in sorted(tags, key=lambda tag: tag.interpreter):
+                    wheel_message.add_header("Tag", str(tag))
+
+                wheelfile.writestr(
+                    f"{source.dist_info_dir}/WHEEL",
+                    wheel_message.as_string(policy=serialization_policy).encode(
+                        "utf-8"
+                    ),
+                )
+
+            if verbose:
+                print("OK")
diff --git a/setuptools/_vendor/wheel/cli/pack.py b/setuptools/_vendor/wheel/cli/pack.py
new file mode 100644
index 0000000000..64469c0c73
--- /dev/null
+++ b/setuptools/_vendor/wheel/cli/pack.py
@@ -0,0 +1,85 @@
+from __future__ import annotations
+
+import email.policy
+import os.path
+import re
+from email.generator import BytesGenerator
+from email.parser import BytesParser
+
+from wheel.cli import WheelError
+from wheel.wheelfile import WheelFile
+
+DIST_INFO_RE = re.compile(r"^(?P(?P.+?)-(?P\d.*?))\.dist-info$")
+
+
+def pack(directory: str, dest_dir: str, build_number: str | None) -> None:
+    """Repack a previously unpacked wheel directory into a new wheel file.
+
+    The .dist-info/WHEEL file must contain one or more tags so that the target
+    wheel file name can be determined.
+
+    :param directory: The unpacked wheel directory
+    :param dest_dir: Destination directory (defaults to the current directory)
+    """
+    # Find the .dist-info directory
+    dist_info_dirs = [
+        fn
+        for fn in os.listdir(directory)
+        if os.path.isdir(os.path.join(directory, fn)) and DIST_INFO_RE.match(fn)
+    ]
+    if len(dist_info_dirs) > 1:
+        raise WheelError(f"Multiple .dist-info directories found in {directory}")
+    elif not dist_info_dirs:
+        raise WheelError(f"No .dist-info directories found in {directory}")
+
+    # Determine the target wheel filename
+    dist_info_dir = dist_info_dirs[0]
+    name_version = DIST_INFO_RE.match(dist_info_dir).group("namever")
+
+    # Read the tags and the existing build number from .dist-info/WHEEL
+    wheel_file_path = os.path.join(directory, dist_info_dir, "WHEEL")
+    with open(wheel_file_path, "rb") as f:
+        info = BytesParser(policy=email.policy.compat32).parse(f)
+        tags: list[str] = info.get_all("Tag", [])
+        existing_build_number = info.get("Build")
+
+        if not tags:
+            raise WheelError(
+                f"No tags present in {dist_info_dir}/WHEEL; cannot determine target "
+                f"wheel filename"
+            )
+
+    # Set the wheel file name and add/replace/remove the Build tag in .dist-info/WHEEL
+    build_number = build_number if build_number is not None else existing_build_number
+    if build_number is not None:
+        del info["Build"]
+        if build_number:
+            info["Build"] = build_number
+            name_version += "-" + build_number
+
+        if build_number != existing_build_number:
+            with open(wheel_file_path, "wb") as f:
+                BytesGenerator(f, maxheaderlen=0).flatten(info)
+
+    # Reassemble the tags for the wheel file
+    tagline = compute_tagline(tags)
+
+    # Repack the wheel
+    wheel_path = os.path.join(dest_dir, f"{name_version}-{tagline}.whl")
+    with WheelFile(wheel_path, "w") as wf:
+        print(f"Repacking wheel as {wheel_path}...", end="", flush=True)
+        wf.write_files(directory)
+
+    print("OK")
+
+
+def compute_tagline(tags: list[str]) -> str:
+    """Compute a tagline from a list of tags.
+
+    :param tags: A list of tags
+    :return: A tagline
+    """
+    impls = sorted({tag.split("-")[0] for tag in tags})
+    abivers = sorted({tag.split("-")[1] for tag in tags})
+    platforms = sorted({tag.split("-")[2] for tag in tags})
+    return "-".join([".".join(impls), ".".join(abivers), ".".join(platforms)])
diff --git a/setuptools/_vendor/wheel/cli/tags.py b/setuptools/_vendor/wheel/cli/tags.py
new file mode 100644
index 0000000000..88da72e9ec
--- /dev/null
+++ b/setuptools/_vendor/wheel/cli/tags.py
@@ -0,0 +1,139 @@
+from __future__ import annotations
+
+import email.policy
+import itertools
+import os
+from collections.abc import Iterable
+from email.parser import BytesParser
+
+from ..wheelfile import WheelFile
+
+
+def _compute_tags(original_tags: Iterable[str], new_tags: str | None) -> set[str]:
+    """Add or replace tags. Supports dot-separated tags"""
+    if new_tags is None:
+        return set(original_tags)
+
+    if new_tags.startswith("+"):
+        return {*original_tags, *new_tags[1:].split(".")}
+
+    if new_tags.startswith("-"):
+        return set(original_tags) - set(new_tags[1:].split("."))
+
+    return set(new_tags.split("."))
+
+
+def tags(
+    wheel: str,
+    python_tags: str | None = None,
+    abi_tags: str | None = None,
+    platform_tags: str | None = None,
+    build_tag: str | None = None,
+    remove: bool = False,
+) -> str:
+    """Change the tags on a wheel file.
+
+    The tags are left unchanged if they are not specified. To specify "none",
+    use ["none"]. To append to the previous tags, a tag should start with a
+    "+".  If a tag starts with "-", it will be removed from existing tags.
+    Processing is done left to right.
+
+    :param wheel: The paths to the wheels
+    :param python_tags: The Python tags to set
+    :param abi_tags: The ABI tags to set
+    :param platform_tags: The platform tags to set
+    :param build_tag: The build tag to set
+    :param remove: Remove the original wheel
+    """
+    with WheelFile(wheel, "r") as f:
+        assert f.filename, f"{f.filename} must be available"
+
+        wheel_info = f.read(f.dist_info_path + "/WHEEL")
+        info = BytesParser(policy=email.policy.compat32).parsebytes(wheel_info)
+
+        original_wheel_name = os.path.basename(f.filename)
+        namever = f.parsed_filename.group("namever")
+        build = f.parsed_filename.group("build")
+        original_python_tags = f.parsed_filename.group("pyver").split(".")
+        original_abi_tags = f.parsed_filename.group("abi").split(".")
+        original_plat_tags = f.parsed_filename.group("plat").split(".")
+
+    tags: list[str] = info.get_all("Tag", [])
+    existing_build_tag = info.get("Build")
+
+    impls = {tag.split("-")[0] for tag in tags}
+    abivers = {tag.split("-")[1] for tag in tags}
+    platforms = {tag.split("-")[2] for tag in tags}
+
+    if impls != set(original_python_tags):
+        msg = f"Wheel internal tags {impls!r} != filename tags {original_python_tags!r}"
+        raise AssertionError(msg)
+
+    if abivers != set(original_abi_tags):
+        msg = f"Wheel internal tags {abivers!r} != filename tags {original_abi_tags!r}"
+        raise AssertionError(msg)
+
+    if platforms != set(original_plat_tags):
+        msg = (
+            f"Wheel internal tags {platforms!r} != filename tags {original_plat_tags!r}"
+        )
+        raise AssertionError(msg)
+
+    if existing_build_tag != build:
+        msg = (
+            f"Incorrect filename '{build}' "
+            f"& *.dist-info/WHEEL '{existing_build_tag}' build numbers"
+        )
+        raise AssertionError(msg)
+
+    # Start changing as needed
+    if build_tag is not None:
+        build = build_tag
+
+    final_python_tags = sorted(_compute_tags(original_python_tags, python_tags))
+    final_abi_tags = sorted(_compute_tags(original_abi_tags, abi_tags))
+    final_plat_tags = sorted(_compute_tags(original_plat_tags, platform_tags))
+
+    final_tags = [
+        namever,
+        ".".join(final_python_tags),
+        ".".join(final_abi_tags),
+        ".".join(final_plat_tags),
+    ]
+    if build:
+        final_tags.insert(1, build)
+
+    final_wheel_name = "-".join(final_tags) + ".whl"
+
+    if original_wheel_name != final_wheel_name:
+        del info["Tag"], info["Build"]
+        for a, b, c in itertools.product(
+            final_python_tags, final_abi_tags, final_plat_tags
+        ):
+            info["Tag"] = f"{a}-{b}-{c}"
+        if build:
+            info["Build"] = build
+
+        original_wheel_path = os.path.join(
+            os.path.dirname(f.filename), original_wheel_name
+        )
+        final_wheel_path = os.path.join(os.path.dirname(f.filename), final_wheel_name)
+
+        with WheelFile(original_wheel_path, "r") as fin, WheelFile(
+            final_wheel_path, "w"
+        ) as fout:
+            fout.comment = fin.comment  # preserve the comment
+            for item in fin.infolist():
+                if item.is_dir():
+                    continue
+                if item.filename == f.dist_info_path + "/RECORD":
+                    continue
+                if item.filename == f.dist_info_path + "/WHEEL":
+                    fout.writestr(item, info.as_bytes())
+                else:
+                    fout.writestr(item, fin.read(item))
+
+        if remove:
+            os.remove(original_wheel_path)
+
+    return final_wheel_name
diff --git a/setuptools/_vendor/wheel/cli/unpack.py b/setuptools/_vendor/wheel/cli/unpack.py
new file mode 100644
index 0000000000..d48840e6ec
--- /dev/null
+++ b/setuptools/_vendor/wheel/cli/unpack.py
@@ -0,0 +1,30 @@
+from __future__ import annotations
+
+from pathlib import Path
+
+from ..wheelfile import WheelFile
+
+
+def unpack(path: str, dest: str = ".") -> None:
+    """Unpack a wheel.
+
+    Wheel content will be unpacked to {dest}/{name}-{ver}, where {name}
+    is the package name and {ver} its version.
+
+    :param path: The path to the wheel.
+    :param dest: Destination directory (default to current directory).
+    """
+    with WheelFile(path) as wf:
+        namever = wf.parsed_filename.group("namever")
+        destination = Path(dest) / namever
+        print(f"Unpacking to: {destination}...", end="", flush=True)
+        for zinfo in wf.filelist:
+            wf.extract(zinfo, destination)
+
+            # Set permissions to the same values as they were set in the archive
+            # We have to do this manually due to
+            # https://github.com/python/cpython/issues/59999
+            permissions = zinfo.external_attr >> 16 & 0o777
+            destination.joinpath(zinfo.filename).chmod(permissions)
+
+    print("OK")
diff --git a/setuptools/_vendor/wheel/macosx_libfile.py b/setuptools/_vendor/wheel/macosx_libfile.py
new file mode 100644
index 0000000000..abdfc9eda1
--- /dev/null
+++ b/setuptools/_vendor/wheel/macosx_libfile.py
@@ -0,0 +1,482 @@
+"""
+This module contains function to analyse dynamic library
+headers to extract system information
+
+Currently only for MacOSX
+
+Library file on macosx system starts with Mach-O or Fat field.
+This can be distinguish by first 32 bites and it is called magic number.
+Proper value of magic number is with suffix _MAGIC. Suffix _CIGAM means
+reversed bytes order.
+Both fields can occur in two types: 32 and 64 bytes.
+
+FAT field inform that this library contains few version of library
+(typically for different types version). It contains
+information where Mach-O headers starts.
+
+Each section started with Mach-O header contains one library
+(So if file starts with this field it contains only one version).
+
+After filed Mach-O there are section fields.
+Each of them starts with two fields:
+cmd - magic number for this command
+cmdsize - total size occupied by this section information.
+
+In this case only sections LC_VERSION_MIN_MACOSX (for macosx 10.13 and earlier)
+and LC_BUILD_VERSION (for macosx 10.14 and newer) are interesting,
+because them contains information about minimal system version.
+
+Important remarks:
+- For fat files this implementation looks for maximum number version.
+  It not check if it is 32 or 64 and do not compare it with currently built package.
+  So it is possible to false report higher version that needed.
+- All structures signatures are taken form macosx header files.
+- I think that binary format will be more stable than `otool` output.
+  and if apple introduce some changes both implementation will need to be updated.
+- The system compile will set the deployment target no lower than
+  11.0 for arm64 builds. For "Universal 2" builds use the x86_64 deployment
+  target when the arm64 target is 11.0.
+"""
+
+from __future__ import annotations
+
+import ctypes
+import os
+import sys
+from io import BufferedIOBase
+from typing import TYPE_CHECKING
+
+if TYPE_CHECKING:
+    from typing import Union
+
+    StrPath = Union[str, os.PathLike[str]]
+
+"""here the needed const and struct from mach-o header files"""
+
+FAT_MAGIC = 0xCAFEBABE
+FAT_CIGAM = 0xBEBAFECA
+FAT_MAGIC_64 = 0xCAFEBABF
+FAT_CIGAM_64 = 0xBFBAFECA
+MH_MAGIC = 0xFEEDFACE
+MH_CIGAM = 0xCEFAEDFE
+MH_MAGIC_64 = 0xFEEDFACF
+MH_CIGAM_64 = 0xCFFAEDFE
+
+LC_VERSION_MIN_MACOSX = 0x24
+LC_BUILD_VERSION = 0x32
+
+CPU_TYPE_ARM64 = 0x0100000C
+
+mach_header_fields = [
+    ("magic", ctypes.c_uint32),
+    ("cputype", ctypes.c_int),
+    ("cpusubtype", ctypes.c_int),
+    ("filetype", ctypes.c_uint32),
+    ("ncmds", ctypes.c_uint32),
+    ("sizeofcmds", ctypes.c_uint32),
+    ("flags", ctypes.c_uint32),
+]
+"""
+struct mach_header {
+    uint32_t	magic;		/* mach magic number identifier */
+    cpu_type_t	cputype;	/* cpu specifier */
+    cpu_subtype_t	cpusubtype;	/* machine specifier */
+    uint32_t	filetype;	/* type of file */
+    uint32_t	ncmds;		/* number of load commands */
+    uint32_t	sizeofcmds;	/* the size of all the load commands */
+    uint32_t	flags;		/* flags */
+};
+typedef integer_t cpu_type_t;
+typedef integer_t cpu_subtype_t;
+"""
+
+mach_header_fields_64 = mach_header_fields + [("reserved", ctypes.c_uint32)]
+"""
+struct mach_header_64 {
+    uint32_t	magic;		/* mach magic number identifier */
+    cpu_type_t	cputype;	/* cpu specifier */
+    cpu_subtype_t	cpusubtype;	/* machine specifier */
+    uint32_t	filetype;	/* type of file */
+    uint32_t	ncmds;		/* number of load commands */
+    uint32_t	sizeofcmds;	/* the size of all the load commands */
+    uint32_t	flags;		/* flags */
+    uint32_t	reserved;	/* reserved */
+};
+"""
+
+fat_header_fields = [("magic", ctypes.c_uint32), ("nfat_arch", ctypes.c_uint32)]
+"""
+struct fat_header {
+    uint32_t	magic;		/* FAT_MAGIC or FAT_MAGIC_64 */
+    uint32_t	nfat_arch;	/* number of structs that follow */
+};
+"""
+
+fat_arch_fields = [
+    ("cputype", ctypes.c_int),
+    ("cpusubtype", ctypes.c_int),
+    ("offset", ctypes.c_uint32),
+    ("size", ctypes.c_uint32),
+    ("align", ctypes.c_uint32),
+]
+"""
+struct fat_arch {
+    cpu_type_t	cputype;	/* cpu specifier (int) */
+    cpu_subtype_t	cpusubtype;	/* machine specifier (int) */
+    uint32_t	offset;		/* file offset to this object file */
+    uint32_t	size;		/* size of this object file */
+    uint32_t	align;		/* alignment as a power of 2 */
+};
+"""
+
+fat_arch_64_fields = [
+    ("cputype", ctypes.c_int),
+    ("cpusubtype", ctypes.c_int),
+    ("offset", ctypes.c_uint64),
+    ("size", ctypes.c_uint64),
+    ("align", ctypes.c_uint32),
+    ("reserved", ctypes.c_uint32),
+]
+"""
+struct fat_arch_64 {
+    cpu_type_t	cputype;	/* cpu specifier (int) */
+    cpu_subtype_t	cpusubtype;	/* machine specifier (int) */
+    uint64_t	offset;		/* file offset to this object file */
+    uint64_t	size;		/* size of this object file */
+    uint32_t	align;		/* alignment as a power of 2 */
+    uint32_t	reserved;	/* reserved */
+};
+"""
+
+segment_base_fields = [("cmd", ctypes.c_uint32), ("cmdsize", ctypes.c_uint32)]
+"""base for reading segment info"""
+
+segment_command_fields = [
+    ("cmd", ctypes.c_uint32),
+    ("cmdsize", ctypes.c_uint32),
+    ("segname", ctypes.c_char * 16),
+    ("vmaddr", ctypes.c_uint32),
+    ("vmsize", ctypes.c_uint32),
+    ("fileoff", ctypes.c_uint32),
+    ("filesize", ctypes.c_uint32),
+    ("maxprot", ctypes.c_int),
+    ("initprot", ctypes.c_int),
+    ("nsects", ctypes.c_uint32),
+    ("flags", ctypes.c_uint32),
+]
+"""
+struct segment_command { /* for 32-bit architectures */
+    uint32_t	cmd;		/* LC_SEGMENT */
+    uint32_t	cmdsize;	/* includes sizeof section structs */
+    char		segname[16];	/* segment name */
+    uint32_t	vmaddr;		/* memory address of this segment */
+    uint32_t	vmsize;		/* memory size of this segment */
+    uint32_t	fileoff;	/* file offset of this segment */
+    uint32_t	filesize;	/* amount to map from the file */
+    vm_prot_t	maxprot;	/* maximum VM protection */
+    vm_prot_t	initprot;	/* initial VM protection */
+    uint32_t	nsects;		/* number of sections in segment */
+    uint32_t	flags;		/* flags */
+};
+typedef int vm_prot_t;
+"""
+
+segment_command_fields_64 = [
+    ("cmd", ctypes.c_uint32),
+    ("cmdsize", ctypes.c_uint32),
+    ("segname", ctypes.c_char * 16),
+    ("vmaddr", ctypes.c_uint64),
+    ("vmsize", ctypes.c_uint64),
+    ("fileoff", ctypes.c_uint64),
+    ("filesize", ctypes.c_uint64),
+    ("maxprot", ctypes.c_int),
+    ("initprot", ctypes.c_int),
+    ("nsects", ctypes.c_uint32),
+    ("flags", ctypes.c_uint32),
+]
+"""
+struct segment_command_64 { /* for 64-bit architectures */
+    uint32_t	cmd;		/* LC_SEGMENT_64 */
+    uint32_t	cmdsize;	/* includes sizeof section_64 structs */
+    char		segname[16];	/* segment name */
+    uint64_t	vmaddr;		/* memory address of this segment */
+    uint64_t	vmsize;		/* memory size of this segment */
+    uint64_t	fileoff;	/* file offset of this segment */
+    uint64_t	filesize;	/* amount to map from the file */
+    vm_prot_t	maxprot;	/* maximum VM protection */
+    vm_prot_t	initprot;	/* initial VM protection */
+    uint32_t	nsects;		/* number of sections in segment */
+    uint32_t	flags;		/* flags */
+};
+"""
+
+version_min_command_fields = segment_base_fields + [
+    ("version", ctypes.c_uint32),
+    ("sdk", ctypes.c_uint32),
+]
+"""
+struct version_min_command {
+    uint32_t	cmd;		/* LC_VERSION_MIN_MACOSX or
+                               LC_VERSION_MIN_IPHONEOS or
+                               LC_VERSION_MIN_WATCHOS or
+                               LC_VERSION_MIN_TVOS */
+    uint32_t	cmdsize;	/* sizeof(struct min_version_command) */
+    uint32_t	version;	/* X.Y.Z is encoded in nibbles xxxx.yy.zz */
+    uint32_t	sdk;		/* X.Y.Z is encoded in nibbles xxxx.yy.zz */
+};
+"""
+
+build_version_command_fields = segment_base_fields + [
+    ("platform", ctypes.c_uint32),
+    ("minos", ctypes.c_uint32),
+    ("sdk", ctypes.c_uint32),
+    ("ntools", ctypes.c_uint32),
+]
+"""
+struct build_version_command {
+    uint32_t	cmd;		/* LC_BUILD_VERSION */
+    uint32_t	cmdsize;	/* sizeof(struct build_version_command) plus */
+                                /* ntools * sizeof(struct build_tool_version) */
+    uint32_t	platform;	/* platform */
+    uint32_t	minos;		/* X.Y.Z is encoded in nibbles xxxx.yy.zz */
+    uint32_t	sdk;		/* X.Y.Z is encoded in nibbles xxxx.yy.zz */
+    uint32_t	ntools;		/* number of tool entries following this */
+};
+"""
+
+
+def swap32(x: int) -> int:
+    return (
+        ((x << 24) & 0xFF000000)
+        | ((x << 8) & 0x00FF0000)
+        | ((x >> 8) & 0x0000FF00)
+        | ((x >> 24) & 0x000000FF)
+    )
+
+
+def get_base_class_and_magic_number(
+    lib_file: BufferedIOBase,
+    seek: int | None = None,
+) -> tuple[type[ctypes.Structure], int]:
+    if seek is None:
+        seek = lib_file.tell()
+    else:
+        lib_file.seek(seek)
+    magic_number = ctypes.c_uint32.from_buffer_copy(
+        lib_file.read(ctypes.sizeof(ctypes.c_uint32))
+    ).value
+
+    # Handle wrong byte order
+    if magic_number in [FAT_CIGAM, FAT_CIGAM_64, MH_CIGAM, MH_CIGAM_64]:
+        if sys.byteorder == "little":
+            BaseClass = ctypes.BigEndianStructure
+        else:
+            BaseClass = ctypes.LittleEndianStructure
+
+        magic_number = swap32(magic_number)
+    else:
+        BaseClass = ctypes.Structure
+
+    lib_file.seek(seek)
+    return BaseClass, magic_number
+
+
+def read_data(struct_class: type[ctypes.Structure], lib_file: BufferedIOBase):
+    return struct_class.from_buffer_copy(lib_file.read(ctypes.sizeof(struct_class)))
+
+
+def extract_macosx_min_system_version(path_to_lib: str):
+    with open(path_to_lib, "rb") as lib_file:
+        BaseClass, magic_number = get_base_class_and_magic_number(lib_file, 0)
+        if magic_number not in [FAT_MAGIC, FAT_MAGIC_64, MH_MAGIC, MH_MAGIC_64]:
+            return
+
+        if magic_number in [FAT_MAGIC, FAT_CIGAM_64]:
+
+            class FatHeader(BaseClass):
+                _fields_ = fat_header_fields
+
+            fat_header = read_data(FatHeader, lib_file)
+            if magic_number == FAT_MAGIC:
+
+                class FatArch(BaseClass):
+                    _fields_ = fat_arch_fields
+
+            else:
+
+                class FatArch(BaseClass):
+                    _fields_ = fat_arch_64_fields
+
+            fat_arch_list = [
+                read_data(FatArch, lib_file) for _ in range(fat_header.nfat_arch)
+            ]
+
+            versions_list: list[tuple[int, int, int]] = []
+            for el in fat_arch_list:
+                try:
+                    version = read_mach_header(lib_file, el.offset)
+                    if version is not None:
+                        if el.cputype == CPU_TYPE_ARM64 and len(fat_arch_list) != 1:
+                            # Xcode will not set the deployment target below 11.0.0
+                            # for the arm64 architecture. Ignore the arm64 deployment
+                            # in fat binaries when the target is 11.0.0, that way
+                            # the other architectures can select a lower deployment
+                            # target.
+                            # This is safe because there is no arm64 variant for
+                            # macOS 10.15 or earlier.
+                            if version == (11, 0, 0):
+                                continue
+                        versions_list.append(version)
+                except ValueError:
+                    pass
+
+            if len(versions_list) > 0:
+                return max(versions_list)
+            else:
+                return None
+
+        else:
+            try:
+                return read_mach_header(lib_file, 0)
+            except ValueError:
+                """when some error during read library files"""
+                return None
+
+
+def read_mach_header(
+    lib_file: BufferedIOBase,
+    seek: int | None = None,
+) -> tuple[int, int, int] | None:
+    """
+    This function parses a Mach-O header and extracts
+    information about the minimal macOS version.
+
+    :param lib_file: reference to opened library file with pointer
+    """
+    base_class, magic_number = get_base_class_and_magic_number(lib_file, seek)
+    arch = "32" if magic_number == MH_MAGIC else "64"
+
+    class SegmentBase(base_class):
+        _fields_ = segment_base_fields
+
+    if arch == "32":
+
+        class MachHeader(base_class):
+            _fields_ = mach_header_fields
+
+    else:
+
+        class MachHeader(base_class):
+            _fields_ = mach_header_fields_64
+
+    mach_header = read_data(MachHeader, lib_file)
+    for _i in range(mach_header.ncmds):
+        pos = lib_file.tell()
+        segment_base = read_data(SegmentBase, lib_file)
+        lib_file.seek(pos)
+        if segment_base.cmd == LC_VERSION_MIN_MACOSX:
+
+            class VersionMinCommand(base_class):
+                _fields_ = version_min_command_fields
+
+            version_info = read_data(VersionMinCommand, lib_file)
+            return parse_version(version_info.version)
+        elif segment_base.cmd == LC_BUILD_VERSION:
+
+            class VersionBuild(base_class):
+                _fields_ = build_version_command_fields
+
+            version_info = read_data(VersionBuild, lib_file)
+            return parse_version(version_info.minos)
+        else:
+            lib_file.seek(pos + segment_base.cmdsize)
+            continue
+
+
+def parse_version(version: int) -> tuple[int, int, int]:
+    x = (version & 0xFFFF0000) >> 16
+    y = (version & 0x0000FF00) >> 8
+    z = version & 0x000000FF
+    return x, y, z
+
+
+def calculate_macosx_platform_tag(archive_root: StrPath, platform_tag: str) -> str:
+    """
+    Calculate proper macosx platform tag basing on files which are included to wheel
+
+    Example platform tag `macosx-10.14-x86_64`
+    """
+    prefix, base_version, suffix = platform_tag.split("-")
+    base_version = tuple(int(x) for x in base_version.split("."))
+    base_version = base_version[:2]
+    if base_version[0] > 10:
+        base_version = (base_version[0], 0)
+    assert len(base_version) == 2
+    if "MACOSX_DEPLOYMENT_TARGET" in os.environ:
+        deploy_target = tuple(
+            int(x) for x in os.environ["MACOSX_DEPLOYMENT_TARGET"].split(".")
+        )
+        deploy_target = deploy_target[:2]
+        if deploy_target[0] > 10:
+            deploy_target = (deploy_target[0], 0)
+        if deploy_target < base_version:
+            sys.stderr.write(
+                "[WARNING] MACOSX_DEPLOYMENT_TARGET is set to a lower value ({}) than "
+                "the version on which the Python interpreter was compiled ({}), and "
+                "will be ignored.\n".format(
+                    ".".join(str(x) for x in deploy_target),
+                    ".".join(str(x) for x in base_version),
+                )
+            )
+        else:
+            base_version = deploy_target
+
+    assert len(base_version) == 2
+    start_version = base_version
+    versions_dict: dict[str, tuple[int, int]] = {}
+    for dirpath, _dirnames, filenames in os.walk(archive_root):
+        for filename in filenames:
+            if filename.endswith(".dylib") or filename.endswith(".so"):
+                lib_path = os.path.join(dirpath, filename)
+                min_ver = extract_macosx_min_system_version(lib_path)
+                if min_ver is not None:
+                    min_ver = min_ver[0:2]
+                    if min_ver[0] > 10:
+                        min_ver = (min_ver[0], 0)
+                    versions_dict[lib_path] = min_ver
+
+    if len(versions_dict) > 0:
+        base_version = max(base_version, max(versions_dict.values()))
+
+    # macosx platform tag do not support minor bugfix release
+    fin_base_version = "_".join([str(x) for x in base_version])
+    if start_version < base_version:
+        problematic_files = [k for k, v in versions_dict.items() if v > start_version]
+        problematic_files = "\n".join(problematic_files)
+        if len(problematic_files) == 1:
+            files_form = "this file"
+        else:
+            files_form = "these files"
+        error_message = (
+            "[WARNING] This wheel needs a higher macOS version than {}  "
+            "To silence this warning, set MACOSX_DEPLOYMENT_TARGET to at least "
+            + fin_base_version
+            + " or recreate "
+            + files_form
+            + " with lower "
+            "MACOSX_DEPLOYMENT_TARGET:  \n" + problematic_files
+        )
+
+        if "MACOSX_DEPLOYMENT_TARGET" in os.environ:
+            error_message = error_message.format(
+                "is set in MACOSX_DEPLOYMENT_TARGET variable."
+            )
+        else:
+            error_message = error_message.format(
+                "the version your Python interpreter is compiled against."
+            )
+
+        sys.stderr.write(error_message)
+
+    platform_tag = prefix + "_" + fin_base_version + "_" + suffix
+    return platform_tag
diff --git a/setuptools/_vendor/wheel/metadata.py b/setuptools/_vendor/wheel/metadata.py
new file mode 100644
index 0000000000..b8098fa859
--- /dev/null
+++ b/setuptools/_vendor/wheel/metadata.py
@@ -0,0 +1,183 @@
+"""
+Tools for converting old- to new-style metadata.
+"""
+
+from __future__ import annotations
+
+import functools
+import itertools
+import os.path
+import re
+import textwrap
+from email.message import Message
+from email.parser import Parser
+from typing import Generator, Iterable, Iterator, Literal
+
+from .vendored.packaging.requirements import Requirement
+
+
+def _nonblank(str: str) -> bool | Literal[""]:
+    return str and not str.startswith("#")
+
+
+@functools.singledispatch
+def yield_lines(iterable: Iterable[str]) -> Iterator[str]:
+    r"""
+    Yield valid lines of a string or iterable.
+    >>> list(yield_lines(''))
+    []
+    >>> list(yield_lines(['foo', 'bar']))
+    ['foo', 'bar']
+    >>> list(yield_lines('foo\nbar'))
+    ['foo', 'bar']
+    >>> list(yield_lines('\nfoo\n#bar\nbaz #comment'))
+    ['foo', 'baz #comment']
+    >>> list(yield_lines(['foo\nbar', 'baz', 'bing\n\n\n']))
+    ['foo', 'bar', 'baz', 'bing']
+    """
+    return itertools.chain.from_iterable(map(yield_lines, iterable))
+
+
+@yield_lines.register(str)
+def _(text: str) -> Iterator[str]:
+    return filter(_nonblank, map(str.strip, text.splitlines()))
+
+
+def split_sections(
+    s: str | Iterator[str],
+) -> Generator[tuple[str | None, list[str]], None, None]:
+    """Split a string or iterable thereof into (section, content) pairs
+    Each ``section`` is a stripped version of the section header ("[section]")
+    and each ``content`` is a list of stripped lines excluding blank lines and
+    comment-only lines.  If there are any such lines before the first section
+    header, they're returned in a first ``section`` of ``None``.
+    """
+    section = None
+    content: list[str] = []
+    for line in yield_lines(s):
+        if line.startswith("["):
+            if line.endswith("]"):
+                if section or content:
+                    yield section, content
+                section = line[1:-1].strip()
+                content = []
+            else:
+                raise ValueError("Invalid section heading", line)
+        else:
+            content.append(line)
+
+    # wrap up last segment
+    yield section, content
+
+
+def safe_extra(extra: str) -> str:
+    """Convert an arbitrary string to a standard 'extra' name
+    Any runs of non-alphanumeric characters are replaced with a single '_',
+    and the result is always lowercased.
+    """
+    return re.sub("[^A-Za-z0-9.-]+", "_", extra).lower()
+
+
+def safe_name(name: str) -> str:
+    """Convert an arbitrary string to a standard distribution name
+    Any runs of non-alphanumeric/. characters are replaced with a single '-'.
+    """
+    return re.sub("[^A-Za-z0-9.]+", "-", name)
+
+
+def requires_to_requires_dist(requirement: Requirement) -> str:
+    """Return the version specifier for a requirement in PEP 345/566 fashion."""
+    if requirement.url:
+        return " @ " + requirement.url
+
+    requires_dist: list[str] = []
+    for spec in requirement.specifier:
+        requires_dist.append(spec.operator + spec.version)
+
+    if requires_dist:
+        return " " + ",".join(sorted(requires_dist))
+    else:
+        return ""
+
+
+def convert_requirements(requirements: list[str]) -> Iterator[str]:
+    """Yield Requires-Dist: strings for parsed requirements strings."""
+    for req in requirements:
+        parsed_requirement = Requirement(req)
+        spec = requires_to_requires_dist(parsed_requirement)
+        extras = ",".join(sorted(safe_extra(e) for e in parsed_requirement.extras))
+        if extras:
+            extras = f"[{extras}]"
+
+        yield safe_name(parsed_requirement.name) + extras + spec
+
+
+def generate_requirements(
+    extras_require: dict[str | None, list[str]],
+) -> Iterator[tuple[str, str]]:
+    """
+    Convert requirements from a setup()-style dictionary to
+    ('Requires-Dist', 'requirement') and ('Provides-Extra', 'extra') tuples.
+
+    extras_require is a dictionary of {extra: [requirements]} as passed to setup(),
+    using the empty extra {'': [requirements]} to hold install_requires.
+    """
+    for extra, depends in extras_require.items():
+        condition = ""
+        extra = extra or ""
+        if ":" in extra:  # setuptools extra:condition syntax
+            extra, condition = extra.split(":", 1)
+
+        extra = safe_extra(extra)
+        if extra:
+            yield "Provides-Extra", extra
+            if condition:
+                condition = "(" + condition + ") and "
+            condition += f"extra == '{extra}'"
+
+        if condition:
+            condition = " ; " + condition
+
+        for new_req in convert_requirements(depends):
+            canonical_req = str(Requirement(new_req + condition))
+            yield "Requires-Dist", canonical_req
+
+
+def pkginfo_to_metadata(egg_info_path: str, pkginfo_path: str) -> Message:
+    """
+    Convert .egg-info directory with PKG-INFO to the Metadata 2.1 format
+    """
+    with open(pkginfo_path, encoding="utf-8") as headers:
+        pkg_info = Parser().parse(headers)
+
+    pkg_info.replace_header("Metadata-Version", "2.1")
+    # Those will be regenerated from `requires.txt`.
+    del pkg_info["Provides-Extra"]
+    del pkg_info["Requires-Dist"]
+    requires_path = os.path.join(egg_info_path, "requires.txt")
+    if os.path.exists(requires_path):
+        with open(requires_path, encoding="utf-8") as requires_file:
+            requires = requires_file.read()
+
+        parsed_requirements = sorted(split_sections(requires), key=lambda x: x[0] or "")
+        for extra, reqs in parsed_requirements:
+            for key, value in generate_requirements({extra: reqs}):
+                if (key, value) not in pkg_info.items():
+                    pkg_info[key] = value
+
+    description = pkg_info["Description"]
+    if description:
+        description_lines = pkg_info["Description"].splitlines()
+        dedented_description = "\n".join(
+            # if the first line of long_description is blank,
+            # the first line here will be indented.
+            (
+                description_lines[0].lstrip(),
+                textwrap.dedent("\n".join(description_lines[1:])),
+                "\n",
+            )
+        )
+        pkg_info.set_payload(dedented_description)
+        del pkg_info["Description"]
+
+    return pkg_info
diff --git a/setuptools/_vendor/wheel/util.py b/setuptools/_vendor/wheel/util.py
new file mode 100644
index 0000000000..c928aa403b
--- /dev/null
+++ b/setuptools/_vendor/wheel/util.py
@@ -0,0 +1,17 @@
+from __future__ import annotations
+
+import base64
+import logging
+
+log = logging.getLogger("wheel")
+
+
+def urlsafe_b64encode(data: bytes) -> bytes:
+    """urlsafe_b64encode without padding"""
+    return base64.urlsafe_b64encode(data).rstrip(b"=")
+
+
+def urlsafe_b64decode(data: bytes) -> bytes:
+    """urlsafe_b64decode without padding"""
+    pad = b"=" * (4 - (len(data) & 3))
+    return base64.urlsafe_b64decode(data + pad)
diff --git a/setuptools/_vendor/wheel/vendored/__init__.py b/setuptools/_vendor/wheel/vendored/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/setuptools/_vendor/wheel/vendored/packaging/LICENSE b/setuptools/_vendor/wheel/vendored/packaging/LICENSE
new file mode 100644
index 0000000000..6f62d44e4e
--- /dev/null
+++ b/setuptools/_vendor/wheel/vendored/packaging/LICENSE
@@ -0,0 +1,3 @@
+This software is made available under the terms of *either* of the licenses
+found in LICENSE.APACHE or LICENSE.BSD. Contributions to this software is made
+under the terms of *both* these licenses.
diff --git a/setuptools/_vendor/wheel/vendored/packaging/LICENSE.APACHE b/setuptools/_vendor/wheel/vendored/packaging/LICENSE.APACHE
new file mode 100644
index 0000000000..f433b1a53f
--- /dev/null
+++ b/setuptools/_vendor/wheel/vendored/packaging/LICENSE.APACHE
@@ -0,0 +1,177 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
diff --git a/setuptools/_vendor/wheel/vendored/packaging/LICENSE.BSD b/setuptools/_vendor/wheel/vendored/packaging/LICENSE.BSD
new file mode 100644
index 0000000000..42ce7b75c9
--- /dev/null
+++ b/setuptools/_vendor/wheel/vendored/packaging/LICENSE.BSD
@@ -0,0 +1,23 @@
+Copyright (c) Donald Stufft and individual contributors.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    1. Redistributions of source code must retain the above copyright notice,
+       this list of conditions and the following disclaimer.
+
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/setuptools/_vendor/wheel/vendored/packaging/__init__.py b/setuptools/_vendor/wheel/vendored/packaging/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/setuptools/_vendor/wheel/vendored/packaging/_elffile.py b/setuptools/_vendor/wheel/vendored/packaging/_elffile.py
new file mode 100644
index 0000000000..6fb19b30bb
--- /dev/null
+++ b/setuptools/_vendor/wheel/vendored/packaging/_elffile.py
@@ -0,0 +1,108 @@
+"""
+ELF file parser.
+
+This provides a class ``ELFFile`` that parses an ELF executable in a similar
+interface to ``ZipFile``. Only the read interface is implemented.
+
+Based on: https://gist.github.com/lyssdod/f51579ae8d93c8657a5564aefc2ffbca
+ELF header: https://refspecs.linuxfoundation.org/elf/gabi4+/ch4.eheader.html
+"""
+
+import enum
+import os
+import struct
+from typing import IO, Optional, Tuple
+
+
+class ELFInvalid(ValueError):
+    pass
+
+
+class EIClass(enum.IntEnum):
+    C32 = 1
+    C64 = 2
+
+
+class EIData(enum.IntEnum):
+    Lsb = 1
+    Msb = 2
+
+
+class EMachine(enum.IntEnum):
+    I386 = 3
+    S390 = 22
+    Arm = 40
+    X8664 = 62
+    AArc64 = 183
+
+
+class ELFFile:
+    """
+    Representation of an ELF executable.
+    """
+
+    def __init__(self, f: IO[bytes]) -> None:
+        self._f = f
+
+        try:
+            ident = self._read("16B")
+        except struct.error:
+            raise ELFInvalid("unable to parse identification")
+        magic = bytes(ident[:4])
+        if magic != b"\x7fELF":
+            raise ELFInvalid(f"invalid magic: {magic!r}")
+
+        self.capacity = ident[4]  # Format for program header (bitness).
+        self.encoding = ident[5]  # Data structure encoding (endianness).
+
+        try:
+            # e_fmt: Format for program header.
+            # p_fmt: Format for section header.
+            # p_idx: Indexes to find p_type, p_offset, and p_filesz.
+            e_fmt, self._p_fmt, self._p_idx = {
+                (1, 1): ("HHIIIIIHHH", ">IIIIIIII", (0, 1, 4)),  # 32-bit MSB.
+                (2, 1): ("HHIQQQIHHH", ">IIQQQQQQ", (0, 2, 5)),  # 64-bit MSB.
+            }[(self.capacity, self.encoding)]
+        except KeyError:
+            raise ELFInvalid(
+                f"unrecognized capacity ({self.capacity}) or "
+                f"encoding ({self.encoding})"
+            )
+
+        try:
+            (
+                _,
+                self.machine,  # Architecture type.
+                _,
+                _,
+                self._e_phoff,  # Offset of program header.
+                _,
+                self.flags,  # Processor-specific flags.
+                _,
+                self._e_phentsize,  # Size of section.
+                self._e_phnum,  # Number of sections.
+            ) = self._read(e_fmt)
+        except struct.error as e:
+            raise ELFInvalid("unable to parse machine and section information") from e
+
+    def _read(self, fmt: str) -> Tuple[int, ...]:
+        return struct.unpack(fmt, self._f.read(struct.calcsize(fmt)))
+
+    @property
+    def interpreter(self) -> Optional[str]:
+        """
+        The path recorded in the ``PT_INTERP`` section header.
+        """
+        for index in range(self._e_phnum):
+            self._f.seek(self._e_phoff + self._e_phentsize * index)
+            try:
+                data = self._read(self._p_fmt)
+            except struct.error:
+                continue
+            if data[self._p_idx[0]] != 3:  # Not PT_INTERP.
+                continue
+            self._f.seek(data[self._p_idx[1]])
+            return os.fsdecode(self._f.read(data[self._p_idx[2]])).strip("\0")
+        return None
diff --git a/setuptools/_vendor/wheel/vendored/packaging/_manylinux.py b/setuptools/_vendor/wheel/vendored/packaging/_manylinux.py
new file mode 100644
index 0000000000..1f5f4ab3e5
--- /dev/null
+++ b/setuptools/_vendor/wheel/vendored/packaging/_manylinux.py
@@ -0,0 +1,260 @@
+import collections
+import contextlib
+import functools
+import os
+import re
+import sys
+import warnings
+from typing import Dict, Generator, Iterator, NamedTuple, Optional, Sequence, Tuple
+
+from ._elffile import EIClass, EIData, ELFFile, EMachine
+
+EF_ARM_ABIMASK = 0xFF000000
+EF_ARM_ABI_VER5 = 0x05000000
+EF_ARM_ABI_FLOAT_HARD = 0x00000400
+
+
+# `os.PathLike` not a generic type until Python 3.9, so sticking with `str`
+# as the type for `path` until then.
+@contextlib.contextmanager
+def _parse_elf(path: str) -> Generator[Optional[ELFFile], None, None]:
+    try:
+        with open(path, "rb") as f:
+            yield ELFFile(f)
+    except (OSError, TypeError, ValueError):
+        yield None
+
+
+def _is_linux_armhf(executable: str) -> bool:
+    # hard-float ABI can be detected from the ELF header of the running
+    # process
+    # https://static.docs.arm.com/ihi0044/g/aaelf32.pdf
+    with _parse_elf(executable) as f:
+        return (
+            f is not None
+            and f.capacity == EIClass.C32
+            and f.encoding == EIData.Lsb
+            and f.machine == EMachine.Arm
+            and f.flags & EF_ARM_ABIMASK == EF_ARM_ABI_VER5
+            and f.flags & EF_ARM_ABI_FLOAT_HARD == EF_ARM_ABI_FLOAT_HARD
+        )
+
+
+def _is_linux_i686(executable: str) -> bool:
+    with _parse_elf(executable) as f:
+        return (
+            f is not None
+            and f.capacity == EIClass.C32
+            and f.encoding == EIData.Lsb
+            and f.machine == EMachine.I386
+        )
+
+
+def _have_compatible_abi(executable: str, archs: Sequence[str]) -> bool:
+    if "armv7l" in archs:
+        return _is_linux_armhf(executable)
+    if "i686" in archs:
+        return _is_linux_i686(executable)
+    allowed_archs = {
+        "x86_64",
+        "aarch64",
+        "ppc64",
+        "ppc64le",
+        "s390x",
+        "loongarch64",
+        "riscv64",
+    }
+    return any(arch in allowed_archs for arch in archs)
+
+
+# If glibc ever changes its major version, we need to know what the last
+# minor version was, so we can build the complete list of all versions.
+# For now, guess what the highest minor version might be, assume it will
+# be 50 for testing. Once this actually happens, update the dictionary
+# with the actual value.
+_LAST_GLIBC_MINOR: Dict[int, int] = collections.defaultdict(lambda: 50)
+
+
+class _GLibCVersion(NamedTuple):
+    major: int
+    minor: int
+
+
+def _glibc_version_string_confstr() -> Optional[str]:
+    """
+    Primary implementation of glibc_version_string using os.confstr.
+    """
+    # os.confstr is quite a bit faster than ctypes.DLL. It's also less likely
+    # to be broken or missing. This strategy is used in the standard library
+    # platform module.
+    # https://github.com/python/cpython/blob/fcf1d003bf4f0100c/Lib/platform.py#L175-L183
+    try:
+        # Should be a string like "glibc 2.17".
+        version_string: Optional[str] = os.confstr("CS_GNU_LIBC_VERSION")
+        assert version_string is not None
+        _, version = version_string.rsplit()
+    except (AssertionError, AttributeError, OSError, ValueError):
+        # os.confstr() or CS_GNU_LIBC_VERSION not available (or a bad value)...
+        return None
+    return version
+
+
+def _glibc_version_string_ctypes() -> Optional[str]:
+    """
+    Fallback implementation of glibc_version_string using ctypes.
+    """
+    try:
+        import ctypes
+    except ImportError:
+        return None
+
+    # ctypes.CDLL(None) internally calls dlopen(NULL), and as the dlopen
+    # manpage says, "If filename is NULL, then the returned handle is for the
+    # main program". This way we can let the linker do the work to figure out
+    # which libc our process is actually using.
+    #
+    # We must also handle the special case where the executable is not a
+    # dynamically linked executable. This can occur when using musl libc,
+    # for example. In this situation, dlopen() will error, leading to an
+    # OSError. Interestingly, at least in the case of musl, there is no
+    # errno set on the OSError. The single string argument used to construct
+    # OSError comes from libc itself and is therefore not portable to
+    # hard code here. In any case, failure to call dlopen() means we
+    # can proceed, so we bail on our attempt.
+    try:
+        process_namespace = ctypes.CDLL(None)
+    except OSError:
+        return None
+
+    try:
+        gnu_get_libc_version = process_namespace.gnu_get_libc_version
+    except AttributeError:
+        # Symbol doesn't exist -> therefore, we are not linked to
+        # glibc.
+        return None
+
+    # Call gnu_get_libc_version, which returns a string like "2.5"
+    gnu_get_libc_version.restype = ctypes.c_char_p
+    version_str: str = gnu_get_libc_version()
+    # py2 / py3 compatibility:
+    if not isinstance(version_str, str):
+        version_str = version_str.decode("ascii")
+
+    return version_str
+
+
+def _glibc_version_string() -> Optional[str]:
+    """Returns glibc version string, or None if not using glibc."""
+    return _glibc_version_string_confstr() or _glibc_version_string_ctypes()
+
+
+def _parse_glibc_version(version_str: str) -> Tuple[int, int]:
+    """Parse glibc version.
+
+    We use a regexp instead of str.split because we want to discard any
+    random junk that might come after the minor version -- this might happen
+    in patched/forked versions of glibc (e.g. Linaro's version of glibc
+    uses version strings like "2.20-2014.11"). See gh-3588.
+    """
+    m = re.match(r"(?P[0-9]+)\.(?P[0-9]+)", version_str)
+    if not m:
+        warnings.warn(
+            f"Expected glibc version with 2 components major.minor,"
+            f" got: {version_str}",
+            RuntimeWarning,
+        )
+        return -1, -1
+    return int(m.group("major")), int(m.group("minor"))
+
+
+@functools.lru_cache
+def _get_glibc_version() -> Tuple[int, int]:
+    version_str = _glibc_version_string()
+    if version_str is None:
+        return (-1, -1)
+    return _parse_glibc_version(version_str)
+
+
+# From PEP 513, PEP 600
+def _is_compatible(arch: str, version: _GLibCVersion) -> bool:
+    sys_glibc = _get_glibc_version()
+    if sys_glibc < version:
+        return False
+    # Check for presence of _manylinux module.
+    try:
+        import _manylinux
+    except ImportError:
+        return True
+    if hasattr(_manylinux, "manylinux_compatible"):
+        result = _manylinux.manylinux_compatible(version[0], version[1], arch)
+        if result is not None:
+            return bool(result)
+        return True
+    if version == _GLibCVersion(2, 5):
+        if hasattr(_manylinux, "manylinux1_compatible"):
+            return bool(_manylinux.manylinux1_compatible)
+    if version == _GLibCVersion(2, 12):
+        if hasattr(_manylinux, "manylinux2010_compatible"):
+            return bool(_manylinux.manylinux2010_compatible)
+    if version == _GLibCVersion(2, 17):
+        if hasattr(_manylinux, "manylinux2014_compatible"):
+            return bool(_manylinux.manylinux2014_compatible)
+    return True
+
+
+_LEGACY_MANYLINUX_MAP = {
+    # CentOS 7 w/ glibc 2.17 (PEP 599)
+    (2, 17): "manylinux2014",
+    # CentOS 6 w/ glibc 2.12 (PEP 571)
+    (2, 12): "manylinux2010",
+    # CentOS 5 w/ glibc 2.5 (PEP 513)
+    (2, 5): "manylinux1",
+}
+
+
+def platform_tags(archs: Sequence[str]) -> Iterator[str]:
+    """Generate manylinux tags compatible to the current platform.
+
+    :param archs: Sequence of compatible architectures.
+        The first one shall be the closest to the actual architecture and be the part of
+        platform tag after the ``linux_`` prefix, e.g. ``x86_64``.
+        The ``linux_`` prefix is assumed as a prerequisite for the current platform to
+        be manylinux-compatible.
+
+    :returns: An iterator of compatible manylinux tags.
+    """
+    if not _have_compatible_abi(sys.executable, archs):
+        return
+    # Oldest glibc to be supported regardless of architecture is (2, 17).
+    too_old_glibc2 = _GLibCVersion(2, 16)
+    if set(archs) & {"x86_64", "i686"}:
+        # On x86/i686 also oldest glibc to be supported is (2, 5).
+        too_old_glibc2 = _GLibCVersion(2, 4)
+    current_glibc = _GLibCVersion(*_get_glibc_version())
+    glibc_max_list = [current_glibc]
+    # We can assume compatibility across glibc major versions.
+    # https://sourceware.org/bugzilla/show_bug.cgi?id=24636
+    #
+    # Build a list of maximum glibc versions so that we can
+    # output the canonical list of all glibc from current_glibc
+    # down to too_old_glibc2, including all intermediary versions.
+    for glibc_major in range(current_glibc.major - 1, 1, -1):
+        glibc_minor = _LAST_GLIBC_MINOR[glibc_major]
+        glibc_max_list.append(_GLibCVersion(glibc_major, glibc_minor))
+    for arch in archs:
+        for glibc_max in glibc_max_list:
+            if glibc_max.major == too_old_glibc2.major:
+                min_minor = too_old_glibc2.minor
+            else:
+                # For other glibc major versions oldest supported is (x, 0).
+                min_minor = -1
+            for glibc_minor in range(glibc_max.minor, min_minor, -1):
+                glibc_version = _GLibCVersion(glibc_max.major, glibc_minor)
+                tag = "manylinux_{}_{}".format(*glibc_version)
+                if _is_compatible(arch, glibc_version):
+                    yield f"{tag}_{arch}"
+                # Handle the legacy manylinux1, manylinux2010, manylinux2014 tags.
+                if glibc_version in _LEGACY_MANYLINUX_MAP:
+                    legacy_tag = _LEGACY_MANYLINUX_MAP[glibc_version]
+                    if _is_compatible(arch, glibc_version):
+                        yield f"{legacy_tag}_{arch}"
diff --git a/setuptools/_vendor/wheel/vendored/packaging/_musllinux.py b/setuptools/_vendor/wheel/vendored/packaging/_musllinux.py
new file mode 100644
index 0000000000..eb4251b5c1
--- /dev/null
+++ b/setuptools/_vendor/wheel/vendored/packaging/_musllinux.py
@@ -0,0 +1,83 @@
+"""PEP 656 support.
+
+This module implements logic to detect if the currently running Python is
+linked against musl, and what musl version is used.
+"""
+
+import functools
+import re
+import subprocess
+import sys
+from typing import Iterator, NamedTuple, Optional, Sequence
+
+from ._elffile import ELFFile
+
+
+class _MuslVersion(NamedTuple):
+    major: int
+    minor: int
+
+
+def _parse_musl_version(output: str) -> Optional[_MuslVersion]:
+    lines = [n for n in (n.strip() for n in output.splitlines()) if n]
+    if len(lines) < 2 or lines[0][:4] != "musl":
+        return None
+    m = re.match(r"Version (\d+)\.(\d+)", lines[1])
+    if not m:
+        return None
+    return _MuslVersion(major=int(m.group(1)), minor=int(m.group(2)))
+
+
+@functools.lru_cache
+def _get_musl_version(executable: str) -> Optional[_MuslVersion]:
+    """Detect currently-running musl runtime version.
+
+    This is done by checking the specified executable's dynamic linking
+    information, and invoking the loader to parse its output for a version
+    string. If the loader is musl, the output would be something like::
+
+        musl libc (x86_64)
+        Version 1.2.2
+        Dynamic Program Loader
+    """
+    try:
+        with open(executable, "rb") as f:
+            ld = ELFFile(f).interpreter
+    except (OSError, TypeError, ValueError):
+        return None
+    if ld is None or "musl" not in ld:
+        return None
+    proc = subprocess.run([ld], stderr=subprocess.PIPE, text=True)
+    return _parse_musl_version(proc.stderr)
+
+
+def platform_tags(archs: Sequence[str]) -> Iterator[str]:
+    """Generate musllinux tags compatible to the current platform.
+
+    :param archs: Sequence of compatible architectures.
+        The first one shall be the closest to the actual architecture and be the part of
+        platform tag after the ``linux_`` prefix, e.g. ``x86_64``.
+        The ``linux_`` prefix is assumed as a prerequisite for the current platform to
+        be musllinux-compatible.
+
+    :returns: An iterator of compatible musllinux tags.
+    """
+    sys_musl = _get_musl_version(sys.executable)
+    if sys_musl is None:  # Python not dynamically linked against musl.
+        return
+    for arch in archs:
+        for minor in range(sys_musl.minor, -1, -1):
+            yield f"musllinux_{sys_musl.major}_{minor}_{arch}"
+
+
+if __name__ == "__main__":  # pragma: no cover
+    import sysconfig
+
+    plat = sysconfig.get_platform()
+    assert plat.startswith("linux-"), "not linux"
+
+    print("plat:", plat)
+    print("musl:", _get_musl_version(sys.executable))
+    print("tags:", end=" ")
+    for t in platform_tags(re.sub(r"[.-]", "_", plat.split("-", 1)[-1])):
+        print(t, end="\n      ")
diff --git a/setuptools/_vendor/wheel/vendored/packaging/_parser.py b/setuptools/_vendor/wheel/vendored/packaging/_parser.py
new file mode 100644
index 0000000000..513686a219
--- /dev/null
+++ b/setuptools/_vendor/wheel/vendored/packaging/_parser.py
@@ -0,0 +1,356 @@
+"""Handwritten parser of dependency specifiers.
+
+The docstring for each __parse_* function contains EBNF-inspired grammar representing
+the implementation.
+"""
+
+import ast
+from typing import Any, List, NamedTuple, Optional, Tuple, Union
+
+from ._tokenizer import DEFAULT_RULES, Tokenizer
+
+
+class Node:
+    def __init__(self, value: str) -> None:
+        self.value = value
+
+    def __str__(self) -> str:
+        return self.value
+
+    def __repr__(self) -> str:
+        return f"<{self.__class__.__name__}('{self}')>"
+
+    def serialize(self) -> str:
+        raise NotImplementedError
+
+
+class Variable(Node):
+    def serialize(self) -> str:
+        return str(self)
+
+
+class Value(Node):
+    def serialize(self) -> str:
+        return f'"{self}"'
+
+
+class Op(Node):
+    def serialize(self) -> str:
+        return str(self)
+
+
+MarkerVar = Union[Variable, Value]
+MarkerItem = Tuple[MarkerVar, Op, MarkerVar]
+# MarkerAtom = Union[MarkerItem, List["MarkerAtom"]]
+# MarkerList = List[Union["MarkerList", MarkerAtom, str]]
+# mypy does not support recursive type definition
+# https://github.com/python/mypy/issues/731
+MarkerAtom = Any
+MarkerList = List[Any]
+
+
+class ParsedRequirement(NamedTuple):
+    name: str
+    url: str
+    extras: List[str]
+    specifier: str
+    marker: Optional[MarkerList]
+
+
+# --------------------------------------------------------------------------------------
+# Recursive descent parser for dependency specifier
+# --------------------------------------------------------------------------------------
+def parse_requirement(source: str) -> ParsedRequirement:
+    return _parse_requirement(Tokenizer(source, rules=DEFAULT_RULES))
+
+
+def _parse_requirement(tokenizer: Tokenizer) -> ParsedRequirement:
+    """
+    requirement = WS? IDENTIFIER WS? extras WS? requirement_details
+    """
+    tokenizer.consume("WS")
+
+    name_token = tokenizer.expect(
+        "IDENTIFIER", expected="package name at the start of dependency specifier"
+    )
+    name = name_token.text
+    tokenizer.consume("WS")
+
+    extras = _parse_extras(tokenizer)
+    tokenizer.consume("WS")
+
+    url, specifier, marker = _parse_requirement_details(tokenizer)
+    tokenizer.expect("END", expected="end of dependency specifier")
+
+    return ParsedRequirement(name, url, extras, specifier, marker)
+
+
+def _parse_requirement_details(
+    tokenizer: Tokenizer,
+) -> Tuple[str, str, Optional[MarkerList]]:
+    """
+    requirement_details = AT URL (WS requirement_marker?)?
+                        | specifier WS? (requirement_marker)?
+    """
+
+    specifier = ""
+    url = ""
+    marker = None
+
+    if tokenizer.check("AT"):
+        tokenizer.read()
+        tokenizer.consume("WS")
+
+        url_start = tokenizer.position
+        url = tokenizer.expect("URL", expected="URL after @").text
+        if tokenizer.check("END", peek=True):
+            return (url, specifier, marker)
+
+        tokenizer.expect("WS", expected="whitespace after URL")
+
+        # The input might end after whitespace.
+        if tokenizer.check("END", peek=True):
+            return (url, specifier, marker)
+
+        marker = _parse_requirement_marker(
+            tokenizer, span_start=url_start, after="URL and whitespace"
+        )
+    else:
+        specifier_start = tokenizer.position
+        specifier = _parse_specifier(tokenizer)
+        tokenizer.consume("WS")
+
+        if tokenizer.check("END", peek=True):
+            return (url, specifier, marker)
+
+        marker = _parse_requirement_marker(
+            tokenizer,
+            span_start=specifier_start,
+            after=(
+                "version specifier"
+                if specifier
+                else "name and no valid version specifier"
+            ),
+        )
+
+    return (url, specifier, marker)
+
+
+def _parse_requirement_marker(
+    tokenizer: Tokenizer, *, span_start: int, after: str
+) -> MarkerList:
+    """
+    requirement_marker = SEMICOLON marker WS?
+    """
+
+    if not tokenizer.check("SEMICOLON"):
+        tokenizer.raise_syntax_error(
+            f"Expected end or semicolon (after {after})",
+            span_start=span_start,
+        )
+    tokenizer.read()
+
+    marker = _parse_marker(tokenizer)
+    tokenizer.consume("WS")
+
+    return marker
+
+
+def _parse_extras(tokenizer: Tokenizer) -> List[str]:
+    """
+    extras = (LEFT_BRACKET wsp* extras_list? wsp* RIGHT_BRACKET)?
+    """
+    if not tokenizer.check("LEFT_BRACKET", peek=True):
+        return []
+
+    with tokenizer.enclosing_tokens(
+        "LEFT_BRACKET",
+        "RIGHT_BRACKET",
+        around="extras",
+    ):
+        tokenizer.consume("WS")
+        extras = _parse_extras_list(tokenizer)
+        tokenizer.consume("WS")
+
+    return extras
+
+
+def _parse_extras_list(tokenizer: Tokenizer) -> List[str]:
+    """
+    extras_list = identifier (wsp* ',' wsp* identifier)*
+    """
+    extras: List[str] = []
+
+    if not tokenizer.check("IDENTIFIER"):
+        return extras
+
+    extras.append(tokenizer.read().text)
+
+    while True:
+        tokenizer.consume("WS")
+        if tokenizer.check("IDENTIFIER", peek=True):
+            tokenizer.raise_syntax_error("Expected comma between extra names")
+        elif not tokenizer.check("COMMA"):
+            break
+
+        tokenizer.read()
+        tokenizer.consume("WS")
+
+        extra_token = tokenizer.expect("IDENTIFIER", expected="extra name after comma")
+        extras.append(extra_token.text)
+
+    return extras
+
+
+def _parse_specifier(tokenizer: Tokenizer) -> str:
+    """
+    specifier = LEFT_PARENTHESIS WS? version_many WS? RIGHT_PARENTHESIS
+              | WS? version_many WS?
+    """
+    with tokenizer.enclosing_tokens(
+        "LEFT_PARENTHESIS",
+        "RIGHT_PARENTHESIS",
+        around="version specifier",
+    ):
+        tokenizer.consume("WS")
+        parsed_specifiers = _parse_version_many(tokenizer)
+        tokenizer.consume("WS")
+
+    return parsed_specifiers
+
+
+def _parse_version_many(tokenizer: Tokenizer) -> str:
+    """
+    version_many = (SPECIFIER (WS? COMMA WS? SPECIFIER)*)?
+    """
+    parsed_specifiers = ""
+    while tokenizer.check("SPECIFIER"):
+        span_start = tokenizer.position
+        parsed_specifiers += tokenizer.read().text
+        if tokenizer.check("VERSION_PREFIX_TRAIL", peek=True):
+            tokenizer.raise_syntax_error(
+                ".* suffix can only be used with `==` or `!=` operators",
+                span_start=span_start,
+                span_end=tokenizer.position + 1,
+            )
+        if tokenizer.check("VERSION_LOCAL_LABEL_TRAIL", peek=True):
+            tokenizer.raise_syntax_error(
+                "Local version label can only be used with `==` or `!=` operators",
+                span_start=span_start,
+                span_end=tokenizer.position,
+            )
+        tokenizer.consume("WS")
+        if not tokenizer.check("COMMA"):
+            break
+        parsed_specifiers += tokenizer.read().text
+        tokenizer.consume("WS")
+
+    return parsed_specifiers
+
+
+# --------------------------------------------------------------------------------------
+# Recursive descent parser for marker expression
+# --------------------------------------------------------------------------------------
+def parse_marker(source: str) -> MarkerList:
+    return _parse_full_marker(Tokenizer(source, rules=DEFAULT_RULES))
+
+
+def _parse_full_marker(tokenizer: Tokenizer) -> MarkerList:
+    retval = _parse_marker(tokenizer)
+    tokenizer.expect("END", expected="end of marker expression")
+    return retval
+
+
+def _parse_marker(tokenizer: Tokenizer) -> MarkerList:
+    """
+    marker = marker_atom (BOOLOP marker_atom)+
+    """
+    expression = [_parse_marker_atom(tokenizer)]
+    while tokenizer.check("BOOLOP"):
+        token = tokenizer.read()
+        expr_right = _parse_marker_atom(tokenizer)
+        expression.extend((token.text, expr_right))
+    return expression
+
+
+def _parse_marker_atom(tokenizer: Tokenizer) -> MarkerAtom:
+    """
+    marker_atom = WS? LEFT_PARENTHESIS WS? marker WS? RIGHT_PARENTHESIS WS?
+                | WS? marker_item WS?
+    """
+
+    tokenizer.consume("WS")
+    if tokenizer.check("LEFT_PARENTHESIS", peek=True):
+        with tokenizer.enclosing_tokens(
+            "LEFT_PARENTHESIS",
+            "RIGHT_PARENTHESIS",
+            around="marker expression",
+        ):
+            tokenizer.consume("WS")
+            marker: MarkerAtom = _parse_marker(tokenizer)
+            tokenizer.consume("WS")
+    else:
+        marker = _parse_marker_item(tokenizer)
+    tokenizer.consume("WS")
+    return marker
+
+
+def _parse_marker_item(tokenizer: Tokenizer) -> MarkerItem:
+    """
+    marker_item = WS? marker_var WS? marker_op WS? marker_var WS?
+    """
+    tokenizer.consume("WS")
+    marker_var_left = _parse_marker_var(tokenizer)
+    tokenizer.consume("WS")
+    marker_op = _parse_marker_op(tokenizer)
+    tokenizer.consume("WS")
+    marker_var_right = _parse_marker_var(tokenizer)
+    tokenizer.consume("WS")
+    return (marker_var_left, marker_op, marker_var_right)
+
+
+def _parse_marker_var(tokenizer: Tokenizer) -> MarkerVar:
+    """
+    marker_var = VARIABLE | QUOTED_STRING
+    """
+    if tokenizer.check("VARIABLE"):
+        return process_env_var(tokenizer.read().text.replace(".", "_"))
+    elif tokenizer.check("QUOTED_STRING"):
+        return process_python_str(tokenizer.read().text)
+    else:
+        tokenizer.raise_syntax_error(
+            message="Expected a marker variable or quoted string"
+        )
+
+
+def process_env_var(env_var: str) -> Variable:
+    if env_var in ("platform_python_implementation", "python_implementation"):
+        return Variable("platform_python_implementation")
+    else:
+        return Variable(env_var)
+
+
+def process_python_str(python_str: str) -> Value:
+    value = ast.literal_eval(python_str)
+    return Value(str(value))
+
+
+def _parse_marker_op(tokenizer: Tokenizer) -> Op:
+    """
+    marker_op = IN | NOT IN | OP
+    """
+    if tokenizer.check("IN"):
+        tokenizer.read()
+        return Op("in")
+    elif tokenizer.check("NOT"):
+        tokenizer.read()
+        tokenizer.expect("WS", expected="whitespace after 'not'")
+        tokenizer.expect("IN", expected="'in' after 'not'")
+        return Op("not in")
+    elif tokenizer.check("OP"):
+        return Op(tokenizer.read().text)
+    else:
+        return tokenizer.raise_syntax_error(
+            "Expected marker operator, one of "
+            "<=, <, !=, ==, >=, >, ~=, ===, in, not in"
+        )
diff --git a/setuptools/_vendor/wheel/vendored/packaging/_structures.py b/setuptools/_vendor/wheel/vendored/packaging/_structures.py
new file mode 100644
index 0000000000..90a6465f96
--- /dev/null
+++ b/setuptools/_vendor/wheel/vendored/packaging/_structures.py
@@ -0,0 +1,61 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+
+class InfinityType:
+    def __repr__(self) -> str:
+        return "Infinity"
+
+    def __hash__(self) -> int:
+        return hash(repr(self))
+
+    def __lt__(self, other: object) -> bool:
+        return False
+
+    def __le__(self, other: object) -> bool:
+        return False
+
+    def __eq__(self, other: object) -> bool:
+        return isinstance(other, self.__class__)
+
+    def __gt__(self, other: object) -> bool:
+        return True
+
+    def __ge__(self, other: object) -> bool:
+        return True
+
+    def __neg__(self: object) -> "NegativeInfinityType":
+        return NegativeInfinity
+
+
+Infinity = InfinityType()
+
+
+class NegativeInfinityType:
+    def __repr__(self) -> str:
+        return "-Infinity"
+
+    def __hash__(self) -> int:
+        return hash(repr(self))
+
+    def __lt__(self, other: object) -> bool:
+        return True
+
+    def __le__(self, other: object) -> bool:
+        return True
+
+    def __eq__(self, other: object) -> bool:
+        return isinstance(other, self.__class__)
+
+    def __gt__(self, other: object) -> bool:
+        return False
+
+    def __ge__(self, other: object) -> bool:
+        return False
+
+    def __neg__(self: object) -> InfinityType:
+        return Infinity
+
+
+NegativeInfinity = NegativeInfinityType()
diff --git a/setuptools/_vendor/wheel/vendored/packaging/_tokenizer.py b/setuptools/_vendor/wheel/vendored/packaging/_tokenizer.py
new file mode 100644
index 0000000000..dd0d648d49
--- /dev/null
+++ b/setuptools/_vendor/wheel/vendored/packaging/_tokenizer.py
@@ -0,0 +1,192 @@
+import contextlib
+import re
+from dataclasses import dataclass
+from typing import Dict, Iterator, NoReturn, Optional, Tuple, Union
+
+from .specifiers import Specifier
+
+
+@dataclass
+class Token:
+    name: str
+    text: str
+    position: int
+
+
+class ParserSyntaxError(Exception):
+    """The provided source text could not be parsed correctly."""
+
+    def __init__(
+        self,
+        message: str,
+        *,
+        source: str,
+        span: Tuple[int, int],
+    ) -> None:
+        self.span = span
+        self.message = message
+        self.source = source
+
+        super().__init__()
+
+    def __str__(self) -> str:
+        marker = " " * self.span[0] + "~" * (self.span[1] - self.span[0]) + "^"
+        return "\n    ".join([self.message, self.source, marker])
+
+
+DEFAULT_RULES: "Dict[str, Union[str, re.Pattern[str]]]" = {
+    "LEFT_PARENTHESIS": r"\(",
+    "RIGHT_PARENTHESIS": r"\)",
+    "LEFT_BRACKET": r"\[",
+    "RIGHT_BRACKET": r"\]",
+    "SEMICOLON": r";",
+    "COMMA": r",",
+    "QUOTED_STRING": re.compile(
+        r"""
+            (
+                ('[^']*')
+                |
+                ("[^"]*")
+            )
+        """,
+        re.VERBOSE,
+    ),
+    "OP": r"(===|==|~=|!=|<=|>=|<|>)",
+    "BOOLOP": r"\b(or|and)\b",
+    "IN": r"\bin\b",
+    "NOT": r"\bnot\b",
+    "VARIABLE": re.compile(
+        r"""
+            \b(
+                python_version
+                |python_full_version
+                |os[._]name
+                |sys[._]platform
+                |platform_(release|system)
+                |platform[._](version|machine|python_implementation)
+                |python_implementation
+                |implementation_(name|version)
+                |extra
+            )\b
+        """,
+        re.VERBOSE,
+    ),
+    "SPECIFIER": re.compile(
+        Specifier._operator_regex_str + Specifier._version_regex_str,
+        re.VERBOSE | re.IGNORECASE,
+    ),
+    "AT": r"\@",
+    "URL": r"[^ \t]+",
+    "IDENTIFIER": r"\b[a-zA-Z0-9][a-zA-Z0-9._-]*\b",
+    "VERSION_PREFIX_TRAIL": r"\.\*",
+    "VERSION_LOCAL_LABEL_TRAIL": r"\+[a-z0-9]+(?:[-_\.][a-z0-9]+)*",
+    "WS": r"[ \t]+",
+    "END": r"$",
+}
+
+
+class Tokenizer:
+    """Context-sensitive token parsing.
+
+    Provides methods to examine the input stream to check whether the next token
+    matches.
+    """
+
+    def __init__(
+        self,
+        source: str,
+        *,
+        rules: "Dict[str, Union[str, re.Pattern[str]]]",
+    ) -> None:
+        self.source = source
+        self.rules: Dict[str, re.Pattern[str]] = {
+            name: re.compile(pattern) for name, pattern in rules.items()
+        }
+        self.next_token: Optional[Token] = None
+        self.position = 0
+
+    def consume(self, name: str) -> None:
+        """Move beyond provided token name, if at current position."""
+        if self.check(name):
+            self.read()
+
+    def check(self, name: str, *, peek: bool = False) -> bool:
+        """Check whether the next token has the provided name.
+
+        By default, if the check succeeds, the token *must* be read before
+        another check. If `peek` is set to `True`, the token is not loaded and
+        would need to be checked again.
+        """
+        assert (
+            self.next_token is None
+        ), f"Cannot check for {name!r}, already have {self.next_token!r}"
+        assert name in self.rules, f"Unknown token name: {name!r}"
+
+        expression = self.rules[name]
+
+        match = expression.match(self.source, self.position)
+        if match is None:
+            return False
+        if not peek:
+            self.next_token = Token(name, match[0], self.position)
+        return True
+
+    def expect(self, name: str, *, expected: str) -> Token:
+        """Expect a certain token name next, failing with a syntax error otherwise.
+
+        The token is *not* read.
+        """
+        if not self.check(name):
+            raise self.raise_syntax_error(f"Expected {expected}")
+        return self.read()
+
+    def read(self) -> Token:
+        """Consume the next token and return it."""
+        token = self.next_token
+        assert token is not None
+
+        self.position += len(token.text)
+        self.next_token = None
+
+        return token
+
+    def raise_syntax_error(
+        self,
+        message: str,
+        *,
+        span_start: Optional[int] = None,
+        span_end: Optional[int] = None,
+    ) -> NoReturn:
+        """Raise ParserSyntaxError at the given position."""
+        span = (
+            self.position if span_start is None else span_start,
+            self.position if span_end is None else span_end,
+        )
+        raise ParserSyntaxError(
+            message,
+            source=self.source,
+            span=span,
+        )
+
+    @contextlib.contextmanager
+    def enclosing_tokens(
+        self, open_token: str, close_token: str, *, around: str
+    ) -> Iterator[None]:
+        if self.check(open_token):
+            open_position = self.position
+            self.read()
+        else:
+            open_position = None
+
+        yield
+
+        if open_position is None:
+            return
+
+        if not self.check(close_token):
+            self.raise_syntax_error(
+                f"Expected matching {close_token} for {open_token}, after {around}",
+                span_start=open_position,
+            )
+
+        self.read()
diff --git a/setuptools/_vendor/wheel/vendored/packaging/markers.py b/setuptools/_vendor/wheel/vendored/packaging/markers.py
new file mode 100644
index 0000000000..c96d22a5a4
--- /dev/null
+++ b/setuptools/_vendor/wheel/vendored/packaging/markers.py
@@ -0,0 +1,253 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+import operator
+import os
+import platform
+import sys
+from typing import Any, Callable, Dict, List, Optional, Tuple, Union
+
+from ._parser import (
+    MarkerAtom,
+    MarkerList,
+    Op,
+    Value,
+    Variable,
+)
+from ._parser import (
+    parse_marker as _parse_marker,
+)
+from ._tokenizer import ParserSyntaxError
+from .specifiers import InvalidSpecifier, Specifier
+from .utils import canonicalize_name
+
+__all__ = [
+    "InvalidMarker",
+    "UndefinedComparison",
+    "UndefinedEnvironmentName",
+    "Marker",
+    "default_environment",
+]
+
+Operator = Callable[[str, str], bool]
+
+
+class InvalidMarker(ValueError):
+    """
+    An invalid marker was found, users should refer to PEP 508.
+    """
+
+
+class UndefinedComparison(ValueError):
+    """
+    An invalid operation was attempted on a value that doesn't support it.
+    """
+
+
+class UndefinedEnvironmentName(ValueError):
+    """
+    A name was attempted to be used that does not exist inside of the
+    environment.
+    """
+
+
+def _normalize_extra_values(results: Any) -> Any:
+    """
+    Normalize extra values.
+    """
+    if isinstance(results[0], tuple):
+        lhs, op, rhs = results[0]
+        if isinstance(lhs, Variable) and lhs.value == "extra":
+            normalized_extra = canonicalize_name(rhs.value)
+            rhs = Value(normalized_extra)
+        elif isinstance(rhs, Variable) and rhs.value == "extra":
+            normalized_extra = canonicalize_name(lhs.value)
+            lhs = Value(normalized_extra)
+        results[0] = lhs, op, rhs
+    return results
+
+
+def _format_marker(
+    marker: Union[List[str], MarkerAtom, str], first: Optional[bool] = True
+) -> str:
+    assert isinstance(marker, (list, tuple, str))
+
+    # Sometimes we have a structure like [[...]] which is a single item list
+    # where the single item is itself it's own list. In that case we want skip
+    # the rest of this function so that we don't get extraneous () on the
+    # outside.
+    if (
+        isinstance(marker, list)
+        and len(marker) == 1
+        and isinstance(marker[0], (list, tuple))
+    ):
+        return _format_marker(marker[0])
+
+    if isinstance(marker, list):
+        inner = (_format_marker(m, first=False) for m in marker)
+        if first:
+            return " ".join(inner)
+        else:
+            return "(" + " ".join(inner) + ")"
+    elif isinstance(marker, tuple):
+        return " ".join([m.serialize() for m in marker])
+    else:
+        return marker
+
+
+_operators: Dict[str, Operator] = {
+    "in": lambda lhs, rhs: lhs in rhs,
+    "not in": lambda lhs, rhs: lhs not in rhs,
+    "<": operator.lt,
+    "<=": operator.le,
+    "==": operator.eq,
+    "!=": operator.ne,
+    ">=": operator.ge,
+    ">": operator.gt,
+}
+
+
+def _eval_op(lhs: str, op: Op, rhs: str) -> bool:
+    try:
+        spec = Specifier("".join([op.serialize(), rhs]))
+    except InvalidSpecifier:
+        pass
+    else:
+        return spec.contains(lhs, prereleases=True)
+
+    oper: Optional[Operator] = _operators.get(op.serialize())
+    if oper is None:
+        raise UndefinedComparison(f"Undefined {op!r} on {lhs!r} and {rhs!r}.")
+
+    return oper(lhs, rhs)
+
+
+def _normalize(*values: str, key: str) -> Tuple[str, ...]:
+    # PEP 685 – Comparison of extra names for optional distribution dependencies
+    # https://peps.python.org/pep-0685/
+    # > When comparing extra names, tools MUST normalize the names being
+    # > compared using the semantics outlined in PEP 503 for names
+    if key == "extra":
+        return tuple(canonicalize_name(v) for v in values)
+
+    # other environment markers don't have such standards
+    return values
+
+
+def _evaluate_markers(markers: MarkerList, environment: Dict[str, str]) -> bool:
+    groups: List[List[bool]] = [[]]
+
+    for marker in markers:
+        assert isinstance(marker, (list, tuple, str))
+
+        if isinstance(marker, list):
+            groups[-1].append(_evaluate_markers(marker, environment))
+        elif isinstance(marker, tuple):
+            lhs, op, rhs = marker
+
+            if isinstance(lhs, Variable):
+                environment_key = lhs.value
+                lhs_value = environment[environment_key]
+                rhs_value = rhs.value
+            else:
+                lhs_value = lhs.value
+                environment_key = rhs.value
+                rhs_value = environment[environment_key]
+
+            lhs_value, rhs_value = _normalize(lhs_value, rhs_value, key=environment_key)
+            groups[-1].append(_eval_op(lhs_value, op, rhs_value))
+        else:
+            assert marker in ["and", "or"]
+            if marker == "or":
+                groups.append([])
+
+    return any(all(item) for item in groups)
+
+
+def format_full_version(info: "sys._version_info") -> str:
+    version = "{0.major}.{0.minor}.{0.micro}".format(info)
+    kind = info.releaselevel
+    if kind != "final":
+        version += kind[0] + str(info.serial)
+    return version
+
+
+def default_environment() -> Dict[str, str]:
+    iver = format_full_version(sys.implementation.version)
+    implementation_name = sys.implementation.name
+    return {
+        "implementation_name": implementation_name,
+        "implementation_version": iver,
+        "os_name": os.name,
+        "platform_machine": platform.machine(),
+        "platform_release": platform.release(),
+        "platform_system": platform.system(),
+        "platform_version": platform.version(),
+        "python_full_version": platform.python_version(),
+        "platform_python_implementation": platform.python_implementation(),
+        "python_version": ".".join(platform.python_version_tuple()[:2]),
+        "sys_platform": sys.platform,
+    }
+
+
+class Marker:
+    def __init__(self, marker: str) -> None:
+        # Note: We create a Marker object without calling this constructor in
+        #       packaging.requirements.Requirement. If any additional logic is
+        #       added here, make sure to mirror/adapt Requirement.
+        try:
+            self._markers = _normalize_extra_values(_parse_marker(marker))
+            # The attribute `_markers` can be described in terms of a recursive type:
+            # MarkerList = List[Union[Tuple[Node, ...], str, MarkerList]]
+            #
+            # For example, the following expression:
+            # python_version > "3.6" or (python_version == "3.6" and os_name == "unix")
+            #
+            # is parsed into:
+            # [
+            #     (, ')>, ),
+            #     'and',
+            #     [
+            #         (, , ),
+            #         'or',
+            #         (, , )
+            #     ]
+            # ]
+        except ParserSyntaxError as e:
+            raise InvalidMarker(str(e)) from e
+
+    def __str__(self) -> str:
+        return _format_marker(self._markers)
+
+    def __repr__(self) -> str:
+        return f""
+
+    def __hash__(self) -> int:
+        return hash((self.__class__.__name__, str(self)))
+
+    def __eq__(self, other: Any) -> bool:
+        if not isinstance(other, Marker):
+            return NotImplemented
+
+        return str(self) == str(other)
+
+    def evaluate(self, environment: Optional[Dict[str, str]] = None) -> bool:
+        """Evaluate a marker.
+
+        Return the boolean from evaluating the given marker against the
+        environment. environment is an optional argument to override all or
+        part of the determined environment.
+
+        The environment is determined from the current Python process.
+        """
+        current_environment = default_environment()
+        current_environment["extra"] = ""
+        if environment is not None:
+            current_environment.update(environment)
+            # The API used to allow setting extra to None. We need to handle this
+            # case for backwards compatibility.
+            if current_environment["extra"] is None:
+                current_environment["extra"] = ""
+
+        return _evaluate_markers(self._markers, current_environment)
diff --git a/setuptools/_vendor/wheel/vendored/packaging/requirements.py b/setuptools/_vendor/wheel/vendored/packaging/requirements.py
new file mode 100644
index 0000000000..bdc43a7e98
--- /dev/null
+++ b/setuptools/_vendor/wheel/vendored/packaging/requirements.py
@@ -0,0 +1,90 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from typing import Any, Iterator, Optional, Set
+
+from ._parser import parse_requirement as _parse_requirement
+from ._tokenizer import ParserSyntaxError
+from .markers import Marker, _normalize_extra_values
+from .specifiers import SpecifierSet
+from .utils import canonicalize_name
+
+
+class InvalidRequirement(ValueError):
+    """
+    An invalid requirement was found, users should refer to PEP 508.
+    """
+
+
+class Requirement:
+    """Parse a requirement.
+
+    Parse a given requirement string into its parts, such as name, specifier,
+    URL, and extras. Raises InvalidRequirement on a badly-formed requirement
+    string.
+    """
+
+    # TODO: Can we test whether something is contained within a requirement?
+    #       If so how do we do that? Do we need to test against the _name_ of
+    #       the thing as well as the version? What about the markers?
+    # TODO: Can we normalize the name and extra name?
+
+    def __init__(self, requirement_string: str) -> None:
+        try:
+            parsed = _parse_requirement(requirement_string)
+        except ParserSyntaxError as e:
+            raise InvalidRequirement(str(e)) from e
+
+        self.name: str = parsed.name
+        self.url: Optional[str] = parsed.url or None
+        self.extras: Set[str] = set(parsed.extras or [])
+        self.specifier: SpecifierSet = SpecifierSet(parsed.specifier)
+        self.marker: Optional[Marker] = None
+        if parsed.marker is not None:
+            self.marker = Marker.__new__(Marker)
+            self.marker._markers = _normalize_extra_values(parsed.marker)
+
+    def _iter_parts(self, name: str) -> Iterator[str]:
+        yield name
+
+        if self.extras:
+            formatted_extras = ",".join(sorted(self.extras))
+            yield f"[{formatted_extras}]"
+
+        if self.specifier:
+            yield str(self.specifier)
+
+        if self.url:
+            yield f"@ {self.url}"
+            if self.marker:
+                yield " "
+
+        if self.marker:
+            yield f"; {self.marker}"
+
+    def __str__(self) -> str:
+        return "".join(self._iter_parts(self.name))
+
+    def __repr__(self) -> str:
+        return f""
+
+    def __hash__(self) -> int:
+        return hash(
+            (
+                self.__class__.__name__,
+                *self._iter_parts(canonicalize_name(self.name)),
+            )
+        )
+
+    def __eq__(self, other: Any) -> bool:
+        if not isinstance(other, Requirement):
+            return NotImplemented
+
+        return (
+            canonicalize_name(self.name) == canonicalize_name(other.name)
+            and self.extras == other.extras
+            and self.specifier == other.specifier
+            and self.url == other.url
+            and self.marker == other.marker
+        )
diff --git a/setuptools/_vendor/wheel/vendored/packaging/specifiers.py b/setuptools/_vendor/wheel/vendored/packaging/specifiers.py
new file mode 100644
index 0000000000..6d4066ae27
--- /dev/null
+++ b/setuptools/_vendor/wheel/vendored/packaging/specifiers.py
@@ -0,0 +1,1011 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+"""
+.. testsetup::
+
+    from packaging.specifiers import Specifier, SpecifierSet, InvalidSpecifier
+    from packaging.version import Version
+"""
+
+import abc
+import itertools
+import re
+from typing import Callable, Iterable, Iterator, List, Optional, Tuple, TypeVar, Union
+
+from .utils import canonicalize_version
+from .version import Version
+
+UnparsedVersion = Union[Version, str]
+UnparsedVersionVar = TypeVar("UnparsedVersionVar", bound=UnparsedVersion)
+CallableOperator = Callable[[Version, str], bool]
+
+
+def _coerce_version(version: UnparsedVersion) -> Version:
+    if not isinstance(version, Version):
+        version = Version(version)
+    return version
+
+
+class InvalidSpecifier(ValueError):
+    """
+    Raised when attempting to create a :class:`Specifier` with a specifier
+    string that is invalid.
+
+    >>> Specifier("lolwat")
+    Traceback (most recent call last):
+        ...
+    packaging.specifiers.InvalidSpecifier: Invalid specifier: 'lolwat'
+    """
+
+
+class BaseSpecifier(metaclass=abc.ABCMeta):
+    @abc.abstractmethod
+    def __str__(self) -> str:
+        """
+        Returns the str representation of this Specifier-like object. This
+        should be representative of the Specifier itself.
+        """
+
+    @abc.abstractmethod
+    def __hash__(self) -> int:
+        """
+        Returns a hash value for this Specifier-like object.
+        """
+
+    @abc.abstractmethod
+    def __eq__(self, other: object) -> bool:
+        """
+        Returns a boolean representing whether or not the two Specifier-like
+        objects are equal.
+
+        :param other: The other object to check against.
+        """
+
+    @property
+    @abc.abstractmethod
+    def prereleases(self) -> Optional[bool]:
+        """Whether or not pre-releases as a whole are allowed.
+
+        This can be set to either ``True`` or ``False`` to explicitly enable or disable
+        prereleases or it can be set to ``None`` (the default) to use default semantics.
+        """
+
+    @prereleases.setter
+    def prereleases(self, value: bool) -> None:
+        """Setter for :attr:`prereleases`.
+
+        :param value: The value to set.
+        """
+
+    @abc.abstractmethod
+    def contains(self, item: str, prereleases: Optional[bool] = None) -> bool:
+        """
+        Determines if the given item is contained within this specifier.
+        """
+
+    @abc.abstractmethod
+    def filter(
+        self, iterable: Iterable[UnparsedVersionVar], prereleases: Optional[bool] = None
+    ) -> Iterator[UnparsedVersionVar]:
+        """
+        Takes an iterable of items and filters them so that only items which
+        are contained within this specifier are allowed in it.
+        """
+
+
+class Specifier(BaseSpecifier):
+    """This class abstracts handling of version specifiers.
+
+    .. tip::
+
+        It is generally not required to instantiate this manually. You should instead
+        prefer to work with :class:`SpecifierSet` instead, which can parse
+        comma-separated version specifiers (which is what package metadata contains).
+    """
+
+    _operator_regex_str = r"""
+        (?P(~=|==|!=|<=|>=|<|>|===))
+        """
+    _version_regex_str = r"""
+        (?P
+            (?:
+                # The identity operators allow for an escape hatch that will
+                # do an exact string match of the version you wish to install.
+                # This will not be parsed by PEP 440 and we cannot determine
+                # any semantic meaning from it. This operator is discouraged
+                # but included entirely as an escape hatch.
+                (?<====)  # Only match for the identity operator
+                \s*
+                [^\s;)]*  # The arbitrary version can be just about anything,
+                          # we match everything except for whitespace, a
+                          # semi-colon for marker support, and a closing paren
+                          # since versions can be enclosed in them.
+            )
+            |
+            (?:
+                # The (non)equality operators allow for wild card and local
+                # versions to be specified so we have to define these two
+                # operators separately to enable that.
+                (?<===|!=)            # Only match for equals and not equals
+
+                \s*
+                v?
+                (?:[0-9]+!)?          # epoch
+                [0-9]+(?:\.[0-9]+)*   # release
+
+                # You cannot use a wild card and a pre-release, post-release, a dev or
+                # local version together so group them with a | and make them optional.
+                (?:
+                    \.\*  # Wild card syntax of .*
+                    |
+                    (?:                                  # pre release
+                        [-_\.]?
+                        (alpha|beta|preview|pre|a|b|c|rc)
+                        [-_\.]?
+                        [0-9]*
+                    )?
+                    (?:                                  # post release
+                        (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*)
+                    )?
+                    (?:[-_\.]?dev[-_\.]?[0-9]*)?         # dev release
+                    (?:\+[a-z0-9]+(?:[-_\.][a-z0-9]+)*)? # local
+                )?
+            )
+            |
+            (?:
+                # The compatible operator requires at least two digits in the
+                # release segment.
+                (?<=~=)               # Only match for the compatible operator
+
+                \s*
+                v?
+                (?:[0-9]+!)?          # epoch
+                [0-9]+(?:\.[0-9]+)+   # release  (We have a + instead of a *)
+                (?:                   # pre release
+                    [-_\.]?
+                    (alpha|beta|preview|pre|a|b|c|rc)
+                    [-_\.]?
+                    [0-9]*
+                )?
+                (?:                                   # post release
+                    (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*)
+                )?
+                (?:[-_\.]?dev[-_\.]?[0-9]*)?          # dev release
+            )
+            |
+            (?:
+                # All other operators only allow a sub set of what the
+                # (non)equality operators do. Specifically they do not allow
+                # local versions to be specified nor do they allow the prefix
+                # matching wild cards.
+                (?=": "greater_than_equal",
+        "<": "less_than",
+        ">": "greater_than",
+        "===": "arbitrary",
+    }
+
+    def __init__(self, spec: str = "", prereleases: Optional[bool] = None) -> None:
+        """Initialize a Specifier instance.
+
+        :param spec:
+            The string representation of a specifier which will be parsed and
+            normalized before use.
+        :param prereleases:
+            This tells the specifier if it should accept prerelease versions if
+            applicable or not. The default of ``None`` will autodetect it from the
+            given specifiers.
+        :raises InvalidSpecifier:
+            If the given specifier is invalid (i.e. bad syntax).
+        """
+        match = self._regex.search(spec)
+        if not match:
+            raise InvalidSpecifier(f"Invalid specifier: '{spec}'")
+
+        self._spec: Tuple[str, str] = (
+            match.group("operator").strip(),
+            match.group("version").strip(),
+        )
+
+        # Store whether or not this Specifier should accept prereleases
+        self._prereleases = prereleases
+
+    # https://github.com/python/mypy/pull/13475#pullrequestreview-1079784515
+    @property  # type: ignore[override]
+    def prereleases(self) -> bool:
+        # If there is an explicit prereleases set for this, then we'll just
+        # blindly use that.
+        if self._prereleases is not None:
+            return self._prereleases
+
+        # Look at all of our specifiers and determine if they are inclusive
+        # operators, and if they are if they are including an explicit
+        # prerelease.
+        operator, version = self._spec
+        if operator in ["==", ">=", "<=", "~=", "==="]:
+            # The == specifier can include a trailing .*, if it does we
+            # want to remove before parsing.
+            if operator == "==" and version.endswith(".*"):
+                version = version[:-2]
+
+            # Parse the version, and if it is a pre-release than this
+            # specifier allows pre-releases.
+            if Version(version).is_prerelease:
+                return True
+
+        return False
+
+    @prereleases.setter
+    def prereleases(self, value: bool) -> None:
+        self._prereleases = value
+
+    @property
+    def operator(self) -> str:
+        """The operator of this specifier.
+
+        >>> Specifier("==1.2.3").operator
+        '=='
+        """
+        return self._spec[0]
+
+    @property
+    def version(self) -> str:
+        """The version of this specifier.
+
+        >>> Specifier("==1.2.3").version
+        '1.2.3'
+        """
+        return self._spec[1]
+
+    def __repr__(self) -> str:
+        """A representation of the Specifier that shows all internal state.
+
+        >>> Specifier('>=1.0.0')
+        =1.0.0')>
+        >>> Specifier('>=1.0.0', prereleases=False)
+        =1.0.0', prereleases=False)>
+        >>> Specifier('>=1.0.0', prereleases=True)
+        =1.0.0', prereleases=True)>
+        """
+        pre = (
+            f", prereleases={self.prereleases!r}"
+            if self._prereleases is not None
+            else ""
+        )
+
+        return f"<{self.__class__.__name__}({str(self)!r}{pre})>"
+
+    def __str__(self) -> str:
+        """A string representation of the Specifier that can be round-tripped.
+
+        >>> str(Specifier('>=1.0.0'))
+        '>=1.0.0'
+        >>> str(Specifier('>=1.0.0', prereleases=False))
+        '>=1.0.0'
+        """
+        return "{}{}".format(*self._spec)
+
+    @property
+    def _canonical_spec(self) -> Tuple[str, str]:
+        canonical_version = canonicalize_version(
+            self._spec[1],
+            strip_trailing_zero=(self._spec[0] != "~="),
+        )
+        return self._spec[0], canonical_version
+
+    def __hash__(self) -> int:
+        return hash(self._canonical_spec)
+
+    def __eq__(self, other: object) -> bool:
+        """Whether or not the two Specifier-like objects are equal.
+
+        :param other: The other object to check against.
+
+        The value of :attr:`prereleases` is ignored.
+
+        >>> Specifier("==1.2.3") == Specifier("== 1.2.3.0")
+        True
+        >>> (Specifier("==1.2.3", prereleases=False) ==
+        ...  Specifier("==1.2.3", prereleases=True))
+        True
+        >>> Specifier("==1.2.3") == "==1.2.3"
+        True
+        >>> Specifier("==1.2.3") == Specifier("==1.2.4")
+        False
+        >>> Specifier("==1.2.3") == Specifier("~=1.2.3")
+        False
+        """
+        if isinstance(other, str):
+            try:
+                other = self.__class__(str(other))
+            except InvalidSpecifier:
+                return NotImplemented
+        elif not isinstance(other, self.__class__):
+            return NotImplemented
+
+        return self._canonical_spec == other._canonical_spec
+
+    def _get_operator(self, op: str) -> CallableOperator:
+        operator_callable: CallableOperator = getattr(
+            self, f"_compare_{self._operators[op]}"
+        )
+        return operator_callable
+
+    def _compare_compatible(self, prospective: Version, spec: str) -> bool:
+        # Compatible releases have an equivalent combination of >= and ==. That
+        # is that ~=2.2 is equivalent to >=2.2,==2.*. This allows us to
+        # implement this in terms of the other specifiers instead of
+        # implementing it ourselves. The only thing we need to do is construct
+        # the other specifiers.
+
+        # We want everything but the last item in the version, but we want to
+        # ignore suffix segments.
+        prefix = _version_join(
+            list(itertools.takewhile(_is_not_suffix, _version_split(spec)))[:-1]
+        )
+
+        # Add the prefix notation to the end of our string
+        prefix += ".*"
+
+        return self._get_operator(">=")(prospective, spec) and self._get_operator("==")(
+            prospective, prefix
+        )
+
+    def _compare_equal(self, prospective: Version, spec: str) -> bool:
+        # We need special logic to handle prefix matching
+        if spec.endswith(".*"):
+            # In the case of prefix matching we want to ignore local segment.
+            normalized_prospective = canonicalize_version(
+                prospective.public, strip_trailing_zero=False
+            )
+            # Get the normalized version string ignoring the trailing .*
+            normalized_spec = canonicalize_version(spec[:-2], strip_trailing_zero=False)
+            # Split the spec out by bangs and dots, and pretend that there is
+            # an implicit dot in between a release segment and a pre-release segment.
+            split_spec = _version_split(normalized_spec)
+
+            # Split the prospective version out by bangs and dots, and pretend
+            # that there is an implicit dot in between a release segment and
+            # a pre-release segment.
+            split_prospective = _version_split(normalized_prospective)
+
+            # 0-pad the prospective version before shortening it to get the correct
+            # shortened version.
+            padded_prospective, _ = _pad_version(split_prospective, split_spec)
+
+            # Shorten the prospective version to be the same length as the spec
+            # so that we can determine if the specifier is a prefix of the
+            # prospective version or not.
+            shortened_prospective = padded_prospective[: len(split_spec)]
+
+            return shortened_prospective == split_spec
+        else:
+            # Convert our spec string into a Version
+            spec_version = Version(spec)
+
+            # If the specifier does not have a local segment, then we want to
+            # act as if the prospective version also does not have a local
+            # segment.
+            if not spec_version.local:
+                prospective = Version(prospective.public)
+
+            return prospective == spec_version
+
+    def _compare_not_equal(self, prospective: Version, spec: str) -> bool:
+        return not self._compare_equal(prospective, spec)
+
+    def _compare_less_than_equal(self, prospective: Version, spec: str) -> bool:
+        # NB: Local version identifiers are NOT permitted in the version
+        # specifier, so local version labels can be universally removed from
+        # the prospective version.
+        return Version(prospective.public) <= Version(spec)
+
+    def _compare_greater_than_equal(self, prospective: Version, spec: str) -> bool:
+        # NB: Local version identifiers are NOT permitted in the version
+        # specifier, so local version labels can be universally removed from
+        # the prospective version.
+        return Version(prospective.public) >= Version(spec)
+
+    def _compare_less_than(self, prospective: Version, spec_str: str) -> bool:
+        # Convert our spec to a Version instance, since we'll want to work with
+        # it as a version.
+        spec = Version(spec_str)
+
+        # Check to see if the prospective version is less than the spec
+        # version. If it's not we can short circuit and just return False now
+        # instead of doing extra unneeded work.
+        if not prospective < spec:
+            return False
+
+        # This special case is here so that, unless the specifier itself
+        # includes is a pre-release version, that we do not accept pre-release
+        # versions for the version mentioned in the specifier (e.g. <3.1 should
+        # not match 3.1.dev0, but should match 3.0.dev0).
+        if not spec.is_prerelease and prospective.is_prerelease:
+            if Version(prospective.base_version) == Version(spec.base_version):
+                return False
+
+        # If we've gotten to here, it means that prospective version is both
+        # less than the spec version *and* it's not a pre-release of the same
+        # version in the spec.
+        return True
+
+    def _compare_greater_than(self, prospective: Version, spec_str: str) -> bool:
+        # Convert our spec to a Version instance, since we'll want to work with
+        # it as a version.
+        spec = Version(spec_str)
+
+        # Check to see if the prospective version is greater than the spec
+        # version. If it's not we can short circuit and just return False now
+        # instead of doing extra unneeded work.
+        if not prospective > spec:
+            return False
+
+        # This special case is here so that, unless the specifier itself
+        # includes is a post-release version, that we do not accept
+        # post-release versions for the version mentioned in the specifier
+        # (e.g. >3.1 should not match 3.0.post0, but should match 3.2.post0).
+        if not spec.is_postrelease and prospective.is_postrelease:
+            if Version(prospective.base_version) == Version(spec.base_version):
+                return False
+
+        # Ensure that we do not allow a local version of the version mentioned
+        # in the specifier, which is technically greater than, to match.
+        if prospective.local is not None:
+            if Version(prospective.base_version) == Version(spec.base_version):
+                return False
+
+        # If we've gotten to here, it means that prospective version is both
+        # greater than the spec version *and* it's not a pre-release of the
+        # same version in the spec.
+        return True
+
+    def _compare_arbitrary(self, prospective: Version, spec: str) -> bool:
+        return str(prospective).lower() == str(spec).lower()
+
+    def __contains__(self, item: Union[str, Version]) -> bool:
+        """Return whether or not the item is contained in this specifier.
+
+        :param item: The item to check for.
+
+        This is used for the ``in`` operator and behaves the same as
+        :meth:`contains` with no ``prereleases`` argument passed.
+
+        >>> "1.2.3" in Specifier(">=1.2.3")
+        True
+        >>> Version("1.2.3") in Specifier(">=1.2.3")
+        True
+        >>> "1.0.0" in Specifier(">=1.2.3")
+        False
+        >>> "1.3.0a1" in Specifier(">=1.2.3")
+        False
+        >>> "1.3.0a1" in Specifier(">=1.2.3", prereleases=True)
+        True
+        """
+        return self.contains(item)
+
+    def contains(
+        self, item: UnparsedVersion, prereleases: Optional[bool] = None
+    ) -> bool:
+        """Return whether or not the item is contained in this specifier.
+
+        :param item:
+            The item to check for, which can be a version string or a
+            :class:`Version` instance.
+        :param prereleases:
+            Whether or not to match prereleases with this Specifier. If set to
+            ``None`` (the default), it uses :attr:`prereleases` to determine
+            whether or not prereleases are allowed.
+
+        >>> Specifier(">=1.2.3").contains("1.2.3")
+        True
+        >>> Specifier(">=1.2.3").contains(Version("1.2.3"))
+        True
+        >>> Specifier(">=1.2.3").contains("1.0.0")
+        False
+        >>> Specifier(">=1.2.3").contains("1.3.0a1")
+        False
+        >>> Specifier(">=1.2.3", prereleases=True).contains("1.3.0a1")
+        True
+        >>> Specifier(">=1.2.3").contains("1.3.0a1", prereleases=True)
+        True
+        """
+
+        # Determine if prereleases are to be allowed or not.
+        if prereleases is None:
+            prereleases = self.prereleases
+
+        # Normalize item to a Version, this allows us to have a shortcut for
+        # "2.0" in Specifier(">=2")
+        normalized_item = _coerce_version(item)
+
+        # Determine if we should be supporting prereleases in this specifier
+        # or not, if we do not support prereleases than we can short circuit
+        # logic if this version is a prereleases.
+        if normalized_item.is_prerelease and not prereleases:
+            return False
+
+        # Actually do the comparison to determine if this item is contained
+        # within this Specifier or not.
+        operator_callable: CallableOperator = self._get_operator(self.operator)
+        return operator_callable(normalized_item, self.version)
+
+    def filter(
+        self, iterable: Iterable[UnparsedVersionVar], prereleases: Optional[bool] = None
+    ) -> Iterator[UnparsedVersionVar]:
+        """Filter items in the given iterable, that match the specifier.
+
+        :param iterable:
+            An iterable that can contain version strings and :class:`Version` instances.
+            The items in the iterable will be filtered according to the specifier.
+        :param prereleases:
+            Whether or not to allow prereleases in the returned iterator. If set to
+            ``None`` (the default), it will be intelligently decide whether to allow
+            prereleases or not (based on the :attr:`prereleases` attribute, and
+            whether the only versions matching are prereleases).
+
+        This method is smarter than just ``filter(Specifier().contains, [...])``
+        because it implements the rule from :pep:`440` that a prerelease item
+        SHOULD be accepted if no other versions match the given specifier.
+
+        >>> list(Specifier(">=1.2.3").filter(["1.2", "1.3", "1.5a1"]))
+        ['1.3']
+        >>> list(Specifier(">=1.2.3").filter(["1.2", "1.2.3", "1.3", Version("1.4")]))
+        ['1.2.3', '1.3', ]
+        >>> list(Specifier(">=1.2.3").filter(["1.2", "1.5a1"]))
+        ['1.5a1']
+        >>> list(Specifier(">=1.2.3").filter(["1.3", "1.5a1"], prereleases=True))
+        ['1.3', '1.5a1']
+        >>> list(Specifier(">=1.2.3", prereleases=True).filter(["1.3", "1.5a1"]))
+        ['1.3', '1.5a1']
+        """
+
+        yielded = False
+        found_prereleases = []
+
+        kw = {"prereleases": prereleases if prereleases is not None else True}
+
+        # Attempt to iterate over all the values in the iterable and if any of
+        # them match, yield them.
+        for version in iterable:
+            parsed_version = _coerce_version(version)
+
+            if self.contains(parsed_version, **kw):
+                # If our version is a prerelease, and we were not set to allow
+                # prereleases, then we'll store it for later in case nothing
+                # else matches this specifier.
+                if parsed_version.is_prerelease and not (
+                    prereleases or self.prereleases
+                ):
+                    found_prereleases.append(version)
+                # Either this is not a prerelease, or we should have been
+                # accepting prereleases from the beginning.
+                else:
+                    yielded = True
+                    yield version
+
+        # Now that we've iterated over everything, determine if we've yielded
+        # any values, and if we have not and we have any prereleases stored up
+        # then we will go ahead and yield the prereleases.
+        if not yielded and found_prereleases:
+            for version in found_prereleases:
+                yield version
+
+
+_prefix_regex = re.compile(r"^([0-9]+)((?:a|b|c|rc)[0-9]+)$")
+
+
+def _version_split(version: str) -> List[str]:
+    """Split version into components.
+
+    The split components are intended for version comparison. The logic does
+    not attempt to retain the original version string, so joining the
+    components back with :func:`_version_join` may not produce the original
+    version string.
+    """
+    result: List[str] = []
+
+    epoch, _, rest = version.rpartition("!")
+    result.append(epoch or "0")
+
+    for item in rest.split("."):
+        match = _prefix_regex.search(item)
+        if match:
+            result.extend(match.groups())
+        else:
+            result.append(item)
+    return result
+
+
+def _version_join(components: List[str]) -> str:
+    """Join split version components into a version string.
+
+    This function assumes the input came from :func:`_version_split`, where the
+    first component must be the epoch (either empty or numeric), and all other
+    components numeric.
+    """
+    epoch, *rest = components
+    return f"{epoch}!{'.'.join(rest)}"
+
+
+def _is_not_suffix(segment: str) -> bool:
+    return not any(
+        segment.startswith(prefix) for prefix in ("dev", "a", "b", "rc", "post")
+    )
+
+
+def _pad_version(left: List[str], right: List[str]) -> Tuple[List[str], List[str]]:
+    left_split, right_split = [], []
+
+    # Get the release segment of our versions
+    left_split.append(list(itertools.takewhile(lambda x: x.isdigit(), left)))
+    right_split.append(list(itertools.takewhile(lambda x: x.isdigit(), right)))
+
+    # Get the rest of our versions
+    left_split.append(left[len(left_split[0]) :])
+    right_split.append(right[len(right_split[0]) :])
+
+    # Insert our padding
+    left_split.insert(1, ["0"] * max(0, len(right_split[0]) - len(left_split[0])))
+    right_split.insert(1, ["0"] * max(0, len(left_split[0]) - len(right_split[0])))
+
+    return (
+        list(itertools.chain.from_iterable(left_split)),
+        list(itertools.chain.from_iterable(right_split)),
+    )
+
+
+class SpecifierSet(BaseSpecifier):
+    """This class abstracts handling of a set of version specifiers.
+
+    It can be passed a single specifier (``>=3.0``), a comma-separated list of
+    specifiers (``>=3.0,!=3.1``), or no specifier at all.
+    """
+
+    def __init__(
+        self, specifiers: str = "", prereleases: Optional[bool] = None
+    ) -> None:
+        """Initialize a SpecifierSet instance.
+
+        :param specifiers:
+            The string representation of a specifier or a comma-separated list of
+            specifiers which will be parsed and normalized before use.
+        :param prereleases:
+            This tells the SpecifierSet if it should accept prerelease versions if
+            applicable or not. The default of ``None`` will autodetect it from the
+            given specifiers.
+
+        :raises InvalidSpecifier:
+            If the given ``specifiers`` are not parseable than this exception will be
+            raised.
+        """
+
+        # Split on `,` to break each individual specifier into it's own item, and
+        # strip each item to remove leading/trailing whitespace.
+        split_specifiers = [s.strip() for s in specifiers.split(",") if s.strip()]
+
+        # Make each individual specifier a Specifier and save in a frozen set for later.
+        self._specs = frozenset(map(Specifier, split_specifiers))
+
+        # Store our prereleases value so we can use it later to determine if
+        # we accept prereleases or not.
+        self._prereleases = prereleases
+
+    @property
+    def prereleases(self) -> Optional[bool]:
+        # If we have been given an explicit prerelease modifier, then we'll
+        # pass that through here.
+        if self._prereleases is not None:
+            return self._prereleases
+
+        # If we don't have any specifiers, and we don't have a forced value,
+        # then we'll just return None since we don't know if this should have
+        # pre-releases or not.
+        if not self._specs:
+            return None
+
+        # Otherwise we'll see if any of the given specifiers accept
+        # prereleases, if any of them do we'll return True, otherwise False.
+        return any(s.prereleases for s in self._specs)
+
+    @prereleases.setter
+    def prereleases(self, value: bool) -> None:
+        self._prereleases = value
+
+    def __repr__(self) -> str:
+        """A representation of the specifier set that shows all internal state.
+
+        Note that the ordering of the individual specifiers within the set may not
+        match the input string.
+
+        >>> SpecifierSet('>=1.0.0,!=2.0.0')
+        =1.0.0')>
+        >>> SpecifierSet('>=1.0.0,!=2.0.0', prereleases=False)
+        =1.0.0', prereleases=False)>
+        >>> SpecifierSet('>=1.0.0,!=2.0.0', prereleases=True)
+        =1.0.0', prereleases=True)>
+        """
+        pre = (
+            f", prereleases={self.prereleases!r}"
+            if self._prereleases is not None
+            else ""
+        )
+
+        return f""
+
+    def __str__(self) -> str:
+        """A string representation of the specifier set that can be round-tripped.
+
+        Note that the ordering of the individual specifiers within the set may not
+        match the input string.
+
+        >>> str(SpecifierSet(">=1.0.0,!=1.0.1"))
+        '!=1.0.1,>=1.0.0'
+        >>> str(SpecifierSet(">=1.0.0,!=1.0.1", prereleases=False))
+        '!=1.0.1,>=1.0.0'
+        """
+        return ",".join(sorted(str(s) for s in self._specs))
+
+    def __hash__(self) -> int:
+        return hash(self._specs)
+
+    def __and__(self, other: Union["SpecifierSet", str]) -> "SpecifierSet":
+        """Return a SpecifierSet which is a combination of the two sets.
+
+        :param other: The other object to combine with.
+
+        >>> SpecifierSet(">=1.0.0,!=1.0.1") & '<=2.0.0,!=2.0.1'
+        =1.0.0')>
+        >>> SpecifierSet(">=1.0.0,!=1.0.1") & SpecifierSet('<=2.0.0,!=2.0.1')
+        =1.0.0')>
+        """
+        if isinstance(other, str):
+            other = SpecifierSet(other)
+        elif not isinstance(other, SpecifierSet):
+            return NotImplemented
+
+        specifier = SpecifierSet()
+        specifier._specs = frozenset(self._specs | other._specs)
+
+        if self._prereleases is None and other._prereleases is not None:
+            specifier._prereleases = other._prereleases
+        elif self._prereleases is not None and other._prereleases is None:
+            specifier._prereleases = self._prereleases
+        elif self._prereleases == other._prereleases:
+            specifier._prereleases = self._prereleases
+        else:
+            raise ValueError(
+                "Cannot combine SpecifierSets with True and False prerelease "
+                "overrides."
+            )
+
+        return specifier
+
+    def __eq__(self, other: object) -> bool:
+        """Whether or not the two SpecifierSet-like objects are equal.
+
+        :param other: The other object to check against.
+
+        The value of :attr:`prereleases` is ignored.
+
+        >>> SpecifierSet(">=1.0.0,!=1.0.1") == SpecifierSet(">=1.0.0,!=1.0.1")
+        True
+        >>> (SpecifierSet(">=1.0.0,!=1.0.1", prereleases=False) ==
+        ...  SpecifierSet(">=1.0.0,!=1.0.1", prereleases=True))
+        True
+        >>> SpecifierSet(">=1.0.0,!=1.0.1") == ">=1.0.0,!=1.0.1"
+        True
+        >>> SpecifierSet(">=1.0.0,!=1.0.1") == SpecifierSet(">=1.0.0")
+        False
+        >>> SpecifierSet(">=1.0.0,!=1.0.1") == SpecifierSet(">=1.0.0,!=1.0.2")
+        False
+        """
+        if isinstance(other, (str, Specifier)):
+            other = SpecifierSet(str(other))
+        elif not isinstance(other, SpecifierSet):
+            return NotImplemented
+
+        return self._specs == other._specs
+
+    def __len__(self) -> int:
+        """Returns the number of specifiers in this specifier set."""
+        return len(self._specs)
+
+    def __iter__(self) -> Iterator[Specifier]:
+        """
+        Returns an iterator over all the underlying :class:`Specifier` instances
+        in this specifier set.
+
+        >>> sorted(SpecifierSet(">=1.0.0,!=1.0.1"), key=str)
+        [, =1.0.0')>]
+        """
+        return iter(self._specs)
+
+    def __contains__(self, item: UnparsedVersion) -> bool:
+        """Return whether or not the item is contained in this specifier.
+
+        :param item: The item to check for.
+
+        This is used for the ``in`` operator and behaves the same as
+        :meth:`contains` with no ``prereleases`` argument passed.
+
+        >>> "1.2.3" in SpecifierSet(">=1.0.0,!=1.0.1")
+        True
+        >>> Version("1.2.3") in SpecifierSet(">=1.0.0,!=1.0.1")
+        True
+        >>> "1.0.1" in SpecifierSet(">=1.0.0,!=1.0.1")
+        False
+        >>> "1.3.0a1" in SpecifierSet(">=1.0.0,!=1.0.1")
+        False
+        >>> "1.3.0a1" in SpecifierSet(">=1.0.0,!=1.0.1", prereleases=True)
+        True
+        """
+        return self.contains(item)
+
+    def contains(
+        self,
+        item: UnparsedVersion,
+        prereleases: Optional[bool] = None,
+        installed: Optional[bool] = None,
+    ) -> bool:
+        """Return whether or not the item is contained in this SpecifierSet.
+
+        :param item:
+            The item to check for, which can be a version string or a
+            :class:`Version` instance.
+        :param prereleases:
+            Whether or not to match prereleases with this SpecifierSet. If set to
+            ``None`` (the default), it uses :attr:`prereleases` to determine
+            whether or not prereleases are allowed.
+
+        >>> SpecifierSet(">=1.0.0,!=1.0.1").contains("1.2.3")
+        True
+        >>> SpecifierSet(">=1.0.0,!=1.0.1").contains(Version("1.2.3"))
+        True
+        >>> SpecifierSet(">=1.0.0,!=1.0.1").contains("1.0.1")
+        False
+        >>> SpecifierSet(">=1.0.0,!=1.0.1").contains("1.3.0a1")
+        False
+        >>> SpecifierSet(">=1.0.0,!=1.0.1", prereleases=True).contains("1.3.0a1")
+        True
+        >>> SpecifierSet(">=1.0.0,!=1.0.1").contains("1.3.0a1", prereleases=True)
+        True
+        """
+        # Ensure that our item is a Version instance.
+        if not isinstance(item, Version):
+            item = Version(item)
+
+        # Determine if we're forcing a prerelease or not, if we're not forcing
+        # one for this particular filter call, then we'll use whatever the
+        # SpecifierSet thinks for whether or not we should support prereleases.
+        if prereleases is None:
+            prereleases = self.prereleases
+
+        # We can determine if we're going to allow pre-releases by looking to
+        # see if any of the underlying items supports them. If none of them do
+        # and this item is a pre-release then we do not allow it and we can
+        # short circuit that here.
+        # Note: This means that 1.0.dev1 would not be contained in something
+        #       like >=1.0.devabc however it would be in >=1.0.debabc,>0.0.dev0
+        if not prereleases and item.is_prerelease:
+            return False
+
+        if installed and item.is_prerelease:
+            item = Version(item.base_version)
+
+        # We simply dispatch to the underlying specs here to make sure that the
+        # given version is contained within all of them.
+        # Note: This use of all() here means that an empty set of specifiers
+        #       will always return True, this is an explicit design decision.
+        return all(s.contains(item, prereleases=prereleases) for s in self._specs)
+
+    def filter(
+        self, iterable: Iterable[UnparsedVersionVar], prereleases: Optional[bool] = None
+    ) -> Iterator[UnparsedVersionVar]:
+        """Filter items in the given iterable, that match the specifiers in this set.
+
+        :param iterable:
+            An iterable that can contain version strings and :class:`Version` instances.
+            The items in the iterable will be filtered according to the specifier.
+        :param prereleases:
+            Whether or not to allow prereleases in the returned iterator. If set to
+            ``None`` (the default), it will be intelligently decide whether to allow
+            prereleases or not (based on the :attr:`prereleases` attribute, and
+            whether the only versions matching are prereleases).
+
+        This method is smarter than just ``filter(SpecifierSet(...).contains, [...])``
+        because it implements the rule from :pep:`440` that a prerelease item
+        SHOULD be accepted if no other versions match the given specifier.
+
+        >>> list(SpecifierSet(">=1.2.3").filter(["1.2", "1.3", "1.5a1"]))
+        ['1.3']
+        >>> list(SpecifierSet(">=1.2.3").filter(["1.2", "1.3", Version("1.4")]))
+        ['1.3', ]
+        >>> list(SpecifierSet(">=1.2.3").filter(["1.2", "1.5a1"]))
+        []
+        >>> list(SpecifierSet(">=1.2.3").filter(["1.3", "1.5a1"], prereleases=True))
+        ['1.3', '1.5a1']
+        >>> list(SpecifierSet(">=1.2.3", prereleases=True).filter(["1.3", "1.5a1"]))
+        ['1.3', '1.5a1']
+
+        An "empty" SpecifierSet will filter items based on the presence of prerelease
+        versions in the set.
+
+        >>> list(SpecifierSet("").filter(["1.3", "1.5a1"]))
+        ['1.3']
+        >>> list(SpecifierSet("").filter(["1.5a1"]))
+        ['1.5a1']
+        >>> list(SpecifierSet("", prereleases=True).filter(["1.3", "1.5a1"]))
+        ['1.3', '1.5a1']
+        >>> list(SpecifierSet("").filter(["1.3", "1.5a1"], prereleases=True))
+        ['1.3', '1.5a1']
+        """
+        # Determine if we're forcing a prerelease or not, if we're not forcing
+        # one for this particular filter call, then we'll use whatever the
+        # SpecifierSet thinks for whether or not we should support prereleases.
+        if prereleases is None:
+            prereleases = self.prereleases
+
+        # If we have any specifiers, then we want to wrap our iterable in the
+        # filter method for each one, this will act as a logical AND amongst
+        # each specifier.
+        if self._specs:
+            for spec in self._specs:
+                iterable = spec.filter(iterable, prereleases=bool(prereleases))
+            return iter(iterable)
+        # If we do not have any specifiers, then we need to have a rough filter
+        # which will filter out any pre-releases, unless there are no final
+        # releases.
+        else:
+            filtered: List[UnparsedVersionVar] = []
+            found_prereleases: List[UnparsedVersionVar] = []
+
+            for item in iterable:
+                parsed_version = _coerce_version(item)
+
+                # Store any item which is a pre-release for later unless we've
+                # already found a final version or we are accepting prereleases
+                if parsed_version.is_prerelease and not prereleases:
+                    if not filtered:
+                        found_prereleases.append(item)
+                else:
+                    filtered.append(item)
+
+            # If we've found no items except for pre-releases, then we'll go
+            # ahead and use the pre-releases
+            if not filtered and found_prereleases and prereleases is None:
+                return iter(found_prereleases)
+
+            return iter(filtered)
diff --git a/setuptools/_vendor/wheel/vendored/packaging/tags.py b/setuptools/_vendor/wheel/vendored/packaging/tags.py
new file mode 100644
index 0000000000..89f1926137
--- /dev/null
+++ b/setuptools/_vendor/wheel/vendored/packaging/tags.py
@@ -0,0 +1,571 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+import logging
+import platform
+import re
+import struct
+import subprocess
+import sys
+import sysconfig
+from importlib.machinery import EXTENSION_SUFFIXES
+from typing import (
+    Dict,
+    FrozenSet,
+    Iterable,
+    Iterator,
+    List,
+    Optional,
+    Sequence,
+    Tuple,
+    Union,
+    cast,
+)
+
+from . import _manylinux, _musllinux
+
+logger = logging.getLogger(__name__)
+
+PythonVersion = Sequence[int]
+MacVersion = Tuple[int, int]
+
+INTERPRETER_SHORT_NAMES: Dict[str, str] = {
+    "python": "py",  # Generic.
+    "cpython": "cp",
+    "pypy": "pp",
+    "ironpython": "ip",
+    "jython": "jy",
+}
+
+
+_32_BIT_INTERPRETER = struct.calcsize("P") == 4
+
+
+class Tag:
+    """
+    A representation of the tag triple for a wheel.
+
+    Instances are considered immutable and thus are hashable. Equality checking
+    is also supported.
+    """
+
+    __slots__ = ["_interpreter", "_abi", "_platform", "_hash"]
+
+    def __init__(self, interpreter: str, abi: str, platform: str) -> None:
+        self._interpreter = interpreter.lower()
+        self._abi = abi.lower()
+        self._platform = platform.lower()
+        # The __hash__ of every single element in a Set[Tag] will be evaluated each time
+        # that a set calls its `.disjoint()` method, which may be called hundreds of
+        # times when scanning a page of links for packages with tags matching that
+        # Set[Tag]. Pre-computing the value here produces significant speedups for
+        # downstream consumers.
+        self._hash = hash((self._interpreter, self._abi, self._platform))
+
+    @property
+    def interpreter(self) -> str:
+        return self._interpreter
+
+    @property
+    def abi(self) -> str:
+        return self._abi
+
+    @property
+    def platform(self) -> str:
+        return self._platform
+
+    def __eq__(self, other: object) -> bool:
+        if not isinstance(other, Tag):
+            return NotImplemented
+
+        return (
+            (self._hash == other._hash)  # Short-circuit ASAP for perf reasons.
+            and (self._platform == other._platform)
+            and (self._abi == other._abi)
+            and (self._interpreter == other._interpreter)
+        )
+
+    def __hash__(self) -> int:
+        return self._hash
+
+    def __str__(self) -> str:
+        return f"{self._interpreter}-{self._abi}-{self._platform}"
+
+    def __repr__(self) -> str:
+        return f"<{self} @ {id(self)}>"
+
+
+def parse_tag(tag: str) -> FrozenSet[Tag]:
+    """
+    Parses the provided tag (e.g. `py3-none-any`) into a frozenset of Tag instances.
+
+    Returning a set is required due to the possibility that the tag is a
+    compressed tag set.
+    """
+    tags = set()
+    interpreters, abis, platforms = tag.split("-")
+    for interpreter in interpreters.split("."):
+        for abi in abis.split("."):
+            for platform_ in platforms.split("."):
+                tags.add(Tag(interpreter, abi, platform_))
+    return frozenset(tags)
+
+
+def _get_config_var(name: str, warn: bool = False) -> Union[int, str, None]:
+    value: Union[int, str, None] = sysconfig.get_config_var(name)
+    if value is None and warn:
+        logger.debug(
+            "Config variable '%s' is unset, Python ABI tag may be incorrect", name
+        )
+    return value
+
+
+def _normalize_string(string: str) -> str:
+    return string.replace(".", "_").replace("-", "_").replace(" ", "_")
+
+
+def _is_threaded_cpython(abis: List[str]) -> bool:
+    """
+    Determine if the ABI corresponds to a threaded (`--disable-gil`) build.
+
+    The threaded builds are indicated by a "t" in the abiflags.
+    """
+    if len(abis) == 0:
+        return False
+    # expect e.g., cp313
+    m = re.match(r"cp\d+(.*)", abis[0])
+    if not m:
+        return False
+    abiflags = m.group(1)
+    return "t" in abiflags
+
+
+def _abi3_applies(python_version: PythonVersion, threading: bool) -> bool:
+    """
+    Determine if the Python version supports abi3.
+
+    PEP 384 was first implemented in Python 3.2. The threaded (`--disable-gil`)
+    builds do not support abi3.
+    """
+    return len(python_version) > 1 and tuple(python_version) >= (3, 2) and not threading
+
+
+def _cpython_abis(py_version: PythonVersion, warn: bool = False) -> List[str]:
+    py_version = tuple(py_version)  # To allow for version comparison.
+    abis = []
+    version = _version_nodot(py_version[:2])
+    threading = debug = pymalloc = ucs4 = ""
+    with_debug = _get_config_var("Py_DEBUG", warn)
+    has_refcount = hasattr(sys, "gettotalrefcount")
+    # Windows doesn't set Py_DEBUG, so checking for support of debug-compiled
+    # extension modules is the best option.
+    # https://github.com/pypa/pip/issues/3383#issuecomment-173267692
+    has_ext = "_d.pyd" in EXTENSION_SUFFIXES
+    if with_debug or (with_debug is None and (has_refcount or has_ext)):
+        debug = "d"
+    if py_version >= (3, 13) and _get_config_var("Py_GIL_DISABLED", warn):
+        threading = "t"
+    if py_version < (3, 8):
+        with_pymalloc = _get_config_var("WITH_PYMALLOC", warn)
+        if with_pymalloc or with_pymalloc is None:
+            pymalloc = "m"
+        if py_version < (3, 3):
+            unicode_size = _get_config_var("Py_UNICODE_SIZE", warn)
+            if unicode_size == 4 or (
+                unicode_size is None and sys.maxunicode == 0x10FFFF
+            ):
+                ucs4 = "u"
+    elif debug:
+        # Debug builds can also load "normal" extension modules.
+        # We can also assume no UCS-4 or pymalloc requirement.
+        abis.append(f"cp{version}{threading}")
+    abis.insert(0, f"cp{version}{threading}{debug}{pymalloc}{ucs4}")
+    return abis
+
+
+def cpython_tags(
+    python_version: Optional[PythonVersion] = None,
+    abis: Optional[Iterable[str]] = None,
+    platforms: Optional[Iterable[str]] = None,
+    *,
+    warn: bool = False,
+) -> Iterator[Tag]:
+    """
+    Yields the tags for a CPython interpreter.
+
+    The tags consist of:
+    - cp--
+    - cp-abi3-
+    - cp-none-
+    - cp-abi3-  # Older Python versions down to 3.2.
+
+    If python_version only specifies a major version then user-provided ABIs and
+    the 'none' ABItag will be used.
+
+    If 'abi3' or 'none' are specified in 'abis' then they will be yielded at
+    their normal position and not at the beginning.
+    """
+    if not python_version:
+        python_version = sys.version_info[:2]
+
+    interpreter = f"cp{_version_nodot(python_version[:2])}"
+
+    if abis is None:
+        if len(python_version) > 1:
+            abis = _cpython_abis(python_version, warn)
+        else:
+            abis = []
+    abis = list(abis)
+    # 'abi3' and 'none' are explicitly handled later.
+    for explicit_abi in ("abi3", "none"):
+        try:
+            abis.remove(explicit_abi)
+        except ValueError:
+            pass
+
+    platforms = list(platforms or platform_tags())
+    for abi in abis:
+        for platform_ in platforms:
+            yield Tag(interpreter, abi, platform_)
+
+    threading = _is_threaded_cpython(abis)
+    use_abi3 = _abi3_applies(python_version, threading)
+    if use_abi3:
+        yield from (Tag(interpreter, "abi3", platform_) for platform_ in platforms)
+    yield from (Tag(interpreter, "none", platform_) for platform_ in platforms)
+
+    if use_abi3:
+        for minor_version in range(python_version[1] - 1, 1, -1):
+            for platform_ in platforms:
+                interpreter = "cp{version}".format(
+                    version=_version_nodot((python_version[0], minor_version))
+                )
+                yield Tag(interpreter, "abi3", platform_)
+
+
+def _generic_abi() -> List[str]:
+    """
+    Return the ABI tag based on EXT_SUFFIX.
+    """
+    # The following are examples of `EXT_SUFFIX`.
+    # We want to keep the parts which are related to the ABI and remove the
+    # parts which are related to the platform:
+    # - linux:   '.cpython-310-x86_64-linux-gnu.so' => cp310
+    # - mac:     '.cpython-310-darwin.so'           => cp310
+    # - win:     '.cp310-win_amd64.pyd'             => cp310
+    # - win:     '.pyd'                             => cp37 (uses _cpython_abis())
+    # - pypy:    '.pypy38-pp73-x86_64-linux-gnu.so' => pypy38_pp73
+    # - graalpy: '.graalpy-38-native-x86_64-darwin.dylib'
+    #                                               => graalpy_38_native
+
+    ext_suffix = _get_config_var("EXT_SUFFIX", warn=True)
+    if not isinstance(ext_suffix, str) or ext_suffix[0] != ".":
+        raise SystemError("invalid sysconfig.get_config_var('EXT_SUFFIX')")
+    parts = ext_suffix.split(".")
+    if len(parts) < 3:
+        # CPython3.7 and earlier uses ".pyd" on Windows.
+        return _cpython_abis(sys.version_info[:2])
+    soabi = parts[1]
+    if soabi.startswith("cpython"):
+        # non-windows
+        abi = "cp" + soabi.split("-")[1]
+    elif soabi.startswith("cp"):
+        # windows
+        abi = soabi.split("-")[0]
+    elif soabi.startswith("pypy"):
+        abi = "-".join(soabi.split("-")[:2])
+    elif soabi.startswith("graalpy"):
+        abi = "-".join(soabi.split("-")[:3])
+    elif soabi:
+        # pyston, ironpython, others?
+        abi = soabi
+    else:
+        return []
+    return [_normalize_string(abi)]
+
+
+def generic_tags(
+    interpreter: Optional[str] = None,
+    abis: Optional[Iterable[str]] = None,
+    platforms: Optional[Iterable[str]] = None,
+    *,
+    warn: bool = False,
+) -> Iterator[Tag]:
+    """
+    Yields the tags for a generic interpreter.
+
+    The tags consist of:
+    - --
+
+    The "none" ABI will be added if it was not explicitly provided.
+    """
+    if not interpreter:
+        interp_name = interpreter_name()
+        interp_version = interpreter_version(warn=warn)
+        interpreter = "".join([interp_name, interp_version])
+    if abis is None:
+        abis = _generic_abi()
+    else:
+        abis = list(abis)
+    platforms = list(platforms or platform_tags())
+    if "none" not in abis:
+        abis.append("none")
+    for abi in abis:
+        for platform_ in platforms:
+            yield Tag(interpreter, abi, platform_)
+
+
+def _py_interpreter_range(py_version: PythonVersion) -> Iterator[str]:
+    """
+    Yields Python versions in descending order.
+
+    After the latest version, the major-only version will be yielded, and then
+    all previous versions of that major version.
+    """
+    if len(py_version) > 1:
+        yield f"py{_version_nodot(py_version[:2])}"
+    yield f"py{py_version[0]}"
+    if len(py_version) > 1:
+        for minor in range(py_version[1] - 1, -1, -1):
+            yield f"py{_version_nodot((py_version[0], minor))}"
+
+
+def compatible_tags(
+    python_version: Optional[PythonVersion] = None,
+    interpreter: Optional[str] = None,
+    platforms: Optional[Iterable[str]] = None,
+) -> Iterator[Tag]:
+    """
+    Yields the sequence of tags that are compatible with a specific version of Python.
+
+    The tags consist of:
+    - py*-none-
+    - -none-any  # ... if `interpreter` is provided.
+    - py*-none-any
+    """
+    if not python_version:
+        python_version = sys.version_info[:2]
+    platforms = list(platforms or platform_tags())
+    for version in _py_interpreter_range(python_version):
+        for platform_ in platforms:
+            yield Tag(version, "none", platform_)
+    if interpreter:
+        yield Tag(interpreter, "none", "any")
+    for version in _py_interpreter_range(python_version):
+        yield Tag(version, "none", "any")
+
+
+def _mac_arch(arch: str, is_32bit: bool = _32_BIT_INTERPRETER) -> str:
+    if not is_32bit:
+        return arch
+
+    if arch.startswith("ppc"):
+        return "ppc"
+
+    return "i386"
+
+
+def _mac_binary_formats(version: MacVersion, cpu_arch: str) -> List[str]:
+    formats = [cpu_arch]
+    if cpu_arch == "x86_64":
+        if version < (10, 4):
+            return []
+        formats.extend(["intel", "fat64", "fat32"])
+
+    elif cpu_arch == "i386":
+        if version < (10, 4):
+            return []
+        formats.extend(["intel", "fat32", "fat"])
+
+    elif cpu_arch == "ppc64":
+        # TODO: Need to care about 32-bit PPC for ppc64 through 10.2?
+        if version > (10, 5) or version < (10, 4):
+            return []
+        formats.append("fat64")
+
+    elif cpu_arch == "ppc":
+        if version > (10, 6):
+            return []
+        formats.extend(["fat32", "fat"])
+
+    if cpu_arch in {"arm64", "x86_64"}:
+        formats.append("universal2")
+
+    if cpu_arch in {"x86_64", "i386", "ppc64", "ppc", "intel"}:
+        formats.append("universal")
+
+    return formats
+
+
+def mac_platforms(
+    version: Optional[MacVersion] = None, arch: Optional[str] = None
+) -> Iterator[str]:
+    """
+    Yields the platform tags for a macOS system.
+
+    The `version` parameter is a two-item tuple specifying the macOS version to
+    generate platform tags for. The `arch` parameter is the CPU architecture to
+    generate platform tags for. Both parameters default to the appropriate value
+    for the current system.
+    """
+    version_str, _, cpu_arch = platform.mac_ver()
+    if version is None:
+        version = cast("MacVersion", tuple(map(int, version_str.split(".")[:2])))
+        if version == (10, 16):
+            # When built against an older macOS SDK, Python will report macOS 10.16
+            # instead of the real version.
+            version_str = subprocess.run(
+                [
+                    sys.executable,
+                    "-sS",
+                    "-c",
+                    "import platform; print(platform.mac_ver()[0])",
+                ],
+                check=True,
+                env={"SYSTEM_VERSION_COMPAT": "0"},
+                stdout=subprocess.PIPE,
+                text=True,
+            ).stdout
+            version = cast("MacVersion", tuple(map(int, version_str.split(".")[:2])))
+    else:
+        version = version
+    if arch is None:
+        arch = _mac_arch(cpu_arch)
+    else:
+        arch = arch
+
+    if (10, 0) <= version and version < (11, 0):
+        # Prior to Mac OS 11, each yearly release of Mac OS bumped the
+        # "minor" version number.  The major version was always 10.
+        for minor_version in range(version[1], -1, -1):
+            compat_version = 10, minor_version
+            binary_formats = _mac_binary_formats(compat_version, arch)
+            for binary_format in binary_formats:
+                yield "macosx_{major}_{minor}_{binary_format}".format(
+                    major=10, minor=minor_version, binary_format=binary_format
+                )
+
+    if version >= (11, 0):
+        # Starting with Mac OS 11, each yearly release bumps the major version
+        # number.   The minor versions are now the midyear updates.
+        for major_version in range(version[0], 10, -1):
+            compat_version = major_version, 0
+            binary_formats = _mac_binary_formats(compat_version, arch)
+            for binary_format in binary_formats:
+                yield "macosx_{major}_{minor}_{binary_format}".format(
+                    major=major_version, minor=0, binary_format=binary_format
+                )
+
+    if version >= (11, 0):
+        # Mac OS 11 on x86_64 is compatible with binaries from previous releases.
+        # Arm64 support was introduced in 11.0, so no Arm binaries from previous
+        # releases exist.
+        #
+        # However, the "universal2" binary format can have a
+        # macOS version earlier than 11.0 when the x86_64 part of the binary supports
+        # that version of macOS.
+        if arch == "x86_64":
+            for minor_version in range(16, 3, -1):
+                compat_version = 10, minor_version
+                binary_formats = _mac_binary_formats(compat_version, arch)
+                for binary_format in binary_formats:
+                    yield "macosx_{major}_{minor}_{binary_format}".format(
+                        major=compat_version[0],
+                        minor=compat_version[1],
+                        binary_format=binary_format,
+                    )
+        else:
+            for minor_version in range(16, 3, -1):
+                compat_version = 10, minor_version
+                binary_format = "universal2"
+                yield "macosx_{major}_{minor}_{binary_format}".format(
+                    major=compat_version[0],
+                    minor=compat_version[1],
+                    binary_format=binary_format,
+                )
+
+
+def _linux_platforms(is_32bit: bool = _32_BIT_INTERPRETER) -> Iterator[str]:
+    linux = _normalize_string(sysconfig.get_platform())
+    if not linux.startswith("linux_"):
+        # we should never be here, just yield the sysconfig one and return
+        yield linux
+        return
+    if is_32bit:
+        if linux == "linux_x86_64":
+            linux = "linux_i686"
+        elif linux == "linux_aarch64":
+            linux = "linux_armv8l"
+    _, arch = linux.split("_", 1)
+    archs = {"armv8l": ["armv8l", "armv7l"]}.get(arch, [arch])
+    yield from _manylinux.platform_tags(archs)
+    yield from _musllinux.platform_tags(archs)
+    for arch in archs:
+        yield f"linux_{arch}"
+
+
+def _generic_platforms() -> Iterator[str]:
+    yield _normalize_string(sysconfig.get_platform())
+
+
+def platform_tags() -> Iterator[str]:
+    """
+    Provides the platform tags for this installation.
+    """
+    if platform.system() == "Darwin":
+        return mac_platforms()
+    elif platform.system() == "Linux":
+        return _linux_platforms()
+    else:
+        return _generic_platforms()
+
+
+def interpreter_name() -> str:
+    """
+    Returns the name of the running interpreter.
+
+    Some implementations have a reserved, two-letter abbreviation which will
+    be returned when appropriate.
+    """
+    name = sys.implementation.name
+    return INTERPRETER_SHORT_NAMES.get(name) or name
+
+
+def interpreter_version(*, warn: bool = False) -> str:
+    """
+    Returns the version of the running interpreter.
+    """
+    version = _get_config_var("py_version_nodot", warn=warn)
+    if version:
+        version = str(version)
+    else:
+        version = _version_nodot(sys.version_info[:2])
+    return version
+
+
+def _version_nodot(version: PythonVersion) -> str:
+    return "".join(map(str, version))
+
+
+def sys_tags(*, warn: bool = False) -> Iterator[Tag]:
+    """
+    Returns the sequence of tag triples for the running interpreter.
+
+    The order of the sequence corresponds to priority order for the
+    interpreter, from most to least important.
+    """
+
+    interp_name = interpreter_name()
+    if interp_name == "cp":
+        yield from cpython_tags(warn=warn)
+    else:
+        yield from generic_tags()
+
+    if interp_name == "pp":
+        interp = "pp3"
+    elif interp_name == "cp":
+        interp = "cp" + interpreter_version(warn=warn)
+    else:
+        interp = None
+    yield from compatible_tags(interpreter=interp)
diff --git a/setuptools/_vendor/wheel/vendored/packaging/utils.py b/setuptools/_vendor/wheel/vendored/packaging/utils.py
new file mode 100644
index 0000000000..c2c2f75aa8
--- /dev/null
+++ b/setuptools/_vendor/wheel/vendored/packaging/utils.py
@@ -0,0 +1,172 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+import re
+from typing import FrozenSet, NewType, Tuple, Union, cast
+
+from .tags import Tag, parse_tag
+from .version import InvalidVersion, Version
+
+BuildTag = Union[Tuple[()], Tuple[int, str]]
+NormalizedName = NewType("NormalizedName", str)
+
+
+class InvalidName(ValueError):
+    """
+    An invalid distribution name; users should refer to the packaging user guide.
+    """
+
+
+class InvalidWheelFilename(ValueError):
+    """
+    An invalid wheel filename was found, users should refer to PEP 427.
+    """
+
+
+class InvalidSdistFilename(ValueError):
+    """
+    An invalid sdist filename was found, users should refer to the packaging user guide.
+    """
+
+
+# Core metadata spec for `Name`
+_validate_regex = re.compile(
+    r"^([A-Z0-9]|[A-Z0-9][A-Z0-9._-]*[A-Z0-9])$", re.IGNORECASE
+)
+_canonicalize_regex = re.compile(r"[-_.]+")
+_normalized_regex = re.compile(r"^([a-z0-9]|[a-z0-9]([a-z0-9-](?!--))*[a-z0-9])$")
+# PEP 427: The build number must start with a digit.
+_build_tag_regex = re.compile(r"(\d+)(.*)")
+
+
+def canonicalize_name(name: str, *, validate: bool = False) -> NormalizedName:
+    if validate and not _validate_regex.match(name):
+        raise InvalidName(f"name is invalid: {name!r}")
+    # This is taken from PEP 503.
+    value = _canonicalize_regex.sub("-", name).lower()
+    return cast(NormalizedName, value)
+
+
+def is_normalized_name(name: str) -> bool:
+    return _normalized_regex.match(name) is not None
+
+
+def canonicalize_version(
+    version: Union[Version, str], *, strip_trailing_zero: bool = True
+) -> str:
+    """
+    This is very similar to Version.__str__, but has one subtle difference
+    with the way it handles the release segment.
+    """
+    if isinstance(version, str):
+        try:
+            parsed = Version(version)
+        except InvalidVersion:
+            # Legacy versions cannot be normalized
+            return version
+    else:
+        parsed = version
+
+    parts = []
+
+    # Epoch
+    if parsed.epoch != 0:
+        parts.append(f"{parsed.epoch}!")
+
+    # Release segment
+    release_segment = ".".join(str(x) for x in parsed.release)
+    if strip_trailing_zero:
+        # NB: This strips trailing '.0's to normalize
+        release_segment = re.sub(r"(\.0)+$", "", release_segment)
+    parts.append(release_segment)
+
+    # Pre-release
+    if parsed.pre is not None:
+        parts.append("".join(str(x) for x in parsed.pre))
+
+    # Post-release
+    if parsed.post is not None:
+        parts.append(f".post{parsed.post}")
+
+    # Development release
+    if parsed.dev is not None:
+        parts.append(f".dev{parsed.dev}")
+
+    # Local version segment
+    if parsed.local is not None:
+        parts.append(f"+{parsed.local}")
+
+    return "".join(parts)
+
+
+def parse_wheel_filename(
+    filename: str,
+) -> Tuple[NormalizedName, Version, BuildTag, FrozenSet[Tag]]:
+    if not filename.endswith(".whl"):
+        raise InvalidWheelFilename(
+            f"Invalid wheel filename (extension must be '.whl'): {filename}"
+        )
+
+    filename = filename[:-4]
+    dashes = filename.count("-")
+    if dashes not in (4, 5):
+        raise InvalidWheelFilename(
+            f"Invalid wheel filename (wrong number of parts): {filename}"
+        )
+
+    parts = filename.split("-", dashes - 2)
+    name_part = parts[0]
+    # See PEP 427 for the rules on escaping the project name.
+    if "__" in name_part or re.match(r"^[\w\d._]*$", name_part, re.UNICODE) is None:
+        raise InvalidWheelFilename(f"Invalid project name: {filename}")
+    name = canonicalize_name(name_part)
+
+    try:
+        version = Version(parts[1])
+    except InvalidVersion as e:
+        raise InvalidWheelFilename(
+            f"Invalid wheel filename (invalid version): {filename}"
+        ) from e
+
+    if dashes == 5:
+        build_part = parts[2]
+        build_match = _build_tag_regex.match(build_part)
+        if build_match is None:
+            raise InvalidWheelFilename(
+                f"Invalid build number: {build_part} in '{filename}'"
+            )
+        build = cast(BuildTag, (int(build_match.group(1)), build_match.group(2)))
+    else:
+        build = ()
+    tags = parse_tag(parts[-1])
+    return (name, version, build, tags)
+
+
+def parse_sdist_filename(filename: str) -> Tuple[NormalizedName, Version]:
+    if filename.endswith(".tar.gz"):
+        file_stem = filename[: -len(".tar.gz")]
+    elif filename.endswith(".zip"):
+        file_stem = filename[: -len(".zip")]
+    else:
+        raise InvalidSdistFilename(
+            f"Invalid sdist filename (extension must be '.tar.gz' or '.zip'):"
+            f" {filename}"
+        )
+
+    # We are requiring a PEP 440 version, which cannot contain dashes,
+    # so we split on the last dash.
+    name_part, sep, version_part = file_stem.rpartition("-")
+    if not sep:
+        raise InvalidSdistFilename(f"Invalid sdist filename: {filename}")
+
+    name = canonicalize_name(name_part)
+
+    try:
+        version = Version(version_part)
+    except InvalidVersion as e:
+        raise InvalidSdistFilename(
+            f"Invalid sdist filename (invalid version): {filename}"
+        ) from e
+
+    return (name, version)
diff --git a/setuptools/_vendor/wheel/vendored/packaging/version.py b/setuptools/_vendor/wheel/vendored/packaging/version.py
new file mode 100644
index 0000000000..cda8e99935
--- /dev/null
+++ b/setuptools/_vendor/wheel/vendored/packaging/version.py
@@ -0,0 +1,561 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+"""
+.. testsetup::
+
+    from packaging.version import parse, Version
+"""
+
+import itertools
+import re
+from typing import Any, Callable, NamedTuple, Optional, SupportsInt, Tuple, Union
+
+from ._structures import Infinity, InfinityType, NegativeInfinity, NegativeInfinityType
+
+__all__ = ["VERSION_PATTERN", "parse", "Version", "InvalidVersion"]
+
+LocalType = Tuple[Union[int, str], ...]
+
+CmpPrePostDevType = Union[InfinityType, NegativeInfinityType, Tuple[str, int]]
+CmpLocalType = Union[
+    NegativeInfinityType,
+    Tuple[Union[Tuple[int, str], Tuple[NegativeInfinityType, Union[int, str]]], ...],
+]
+CmpKey = Tuple[
+    int,
+    Tuple[int, ...],
+    CmpPrePostDevType,
+    CmpPrePostDevType,
+    CmpPrePostDevType,
+    CmpLocalType,
+]
+VersionComparisonMethod = Callable[[CmpKey, CmpKey], bool]
+
+
+class _Version(NamedTuple):
+    epoch: int
+    release: Tuple[int, ...]
+    dev: Optional[Tuple[str, int]]
+    pre: Optional[Tuple[str, int]]
+    post: Optional[Tuple[str, int]]
+    local: Optional[LocalType]
+
+
+def parse(version: str) -> "Version":
+    """Parse the given version string.
+
+    >>> parse('1.0.dev1')
+    
+
+    :param version: The version string to parse.
+    :raises InvalidVersion: When the version string is not a valid version.
+    """
+    return Version(version)
+
+
+class InvalidVersion(ValueError):
+    """Raised when a version string is not a valid version.
+
+    >>> Version("invalid")
+    Traceback (most recent call last):
+        ...
+    packaging.version.InvalidVersion: Invalid version: 'invalid'
+    """
+
+
+class _BaseVersion:
+    _key: Tuple[Any, ...]
+
+    def __hash__(self) -> int:
+        return hash(self._key)
+
+    # Please keep the duplicated `isinstance` check
+    # in the six comparisons hereunder
+    # unless you find a way to avoid adding overhead function calls.
+    def __lt__(self, other: "_BaseVersion") -> bool:
+        if not isinstance(other, _BaseVersion):
+            return NotImplemented
+
+        return self._key < other._key
+
+    def __le__(self, other: "_BaseVersion") -> bool:
+        if not isinstance(other, _BaseVersion):
+            return NotImplemented
+
+        return self._key <= other._key
+
+    def __eq__(self, other: object) -> bool:
+        if not isinstance(other, _BaseVersion):
+            return NotImplemented
+
+        return self._key == other._key
+
+    def __ge__(self, other: "_BaseVersion") -> bool:
+        if not isinstance(other, _BaseVersion):
+            return NotImplemented
+
+        return self._key >= other._key
+
+    def __gt__(self, other: "_BaseVersion") -> bool:
+        if not isinstance(other, _BaseVersion):
+            return NotImplemented
+
+        return self._key > other._key
+
+    def __ne__(self, other: object) -> bool:
+        if not isinstance(other, _BaseVersion):
+            return NotImplemented
+
+        return self._key != other._key
+
+
+# Deliberately not anchored to the start and end of the string, to make it
+# easier for 3rd party code to reuse
+_VERSION_PATTERN = r"""
+    v?
+    (?:
+        (?:(?P[0-9]+)!)?                           # epoch
+        (?P[0-9]+(?:\.[0-9]+)*)                  # release segment
+        (?P
                                              # pre-release
+            [-_\.]?
+            (?Palpha|a|beta|b|preview|pre|c|rc)
+            [-_\.]?
+            (?P[0-9]+)?
+        )?
+        (?P                                         # post release
+            (?:-(?P[0-9]+))
+            |
+            (?:
+                [-_\.]?
+                (?Ppost|rev|r)
+                [-_\.]?
+                (?P[0-9]+)?
+            )
+        )?
+        (?P                                          # dev release
+            [-_\.]?
+            (?Pdev)
+            [-_\.]?
+            (?P[0-9]+)?
+        )?
+    )
+    (?:\+(?P[a-z0-9]+(?:[-_\.][a-z0-9]+)*))?       # local version
+"""
+
+VERSION_PATTERN = _VERSION_PATTERN
+"""
+A string containing the regular expression used to match a valid version.
+
+The pattern is not anchored at either end, and is intended for embedding in larger
+expressions (for example, matching a version number as part of a file name). The
+regular expression should be compiled with the ``re.VERBOSE`` and ``re.IGNORECASE``
+flags set.
+
+:meta hide-value:
+"""
+
+
+class Version(_BaseVersion):
+    """This class abstracts handling of a project's versions.
+
+    A :class:`Version` instance is comparison aware and can be compared and
+    sorted using the standard Python interfaces.
+
+    >>> v1 = Version("1.0a5")
+    >>> v2 = Version("1.0")
+    >>> v1
+    
+    >>> v2
+    
+    >>> v1 < v2
+    True
+    >>> v1 == v2
+    False
+    >>> v1 > v2
+    False
+    >>> v1 >= v2
+    False
+    >>> v1 <= v2
+    True
+    """
+
+    _regex = re.compile(r"^\s*" + VERSION_PATTERN + r"\s*$", re.VERBOSE | re.IGNORECASE)
+    _key: CmpKey
+
+    def __init__(self, version: str) -> None:
+        """Initialize a Version object.
+
+        :param version:
+            The string representation of a version which will be parsed and normalized
+            before use.
+        :raises InvalidVersion:
+            If the ``version`` does not conform to PEP 440 in any way then this
+            exception will be raised.
+        """
+
+        # Validate the version and parse it into pieces
+        match = self._regex.search(version)
+        if not match:
+            raise InvalidVersion(f"Invalid version: '{version}'")
+
+        # Store the parsed out pieces of the version
+        self._version = _Version(
+            epoch=int(match.group("epoch")) if match.group("epoch") else 0,
+            release=tuple(int(i) for i in match.group("release").split(".")),
+            pre=_parse_letter_version(match.group("pre_l"), match.group("pre_n")),
+            post=_parse_letter_version(
+                match.group("post_l"), match.group("post_n1") or match.group("post_n2")
+            ),
+            dev=_parse_letter_version(match.group("dev_l"), match.group("dev_n")),
+            local=_parse_local_version(match.group("local")),
+        )
+
+        # Generate a key which will be used for sorting
+        self._key = _cmpkey(
+            self._version.epoch,
+            self._version.release,
+            self._version.pre,
+            self._version.post,
+            self._version.dev,
+            self._version.local,
+        )
+
+    def __repr__(self) -> str:
+        """A representation of the Version that shows all internal state.
+
+        >>> Version('1.0.0')
+        
+        """
+        return f""
+
+    def __str__(self) -> str:
+        """A string representation of the version that can be rounded-tripped.
+
+        >>> str(Version("1.0a5"))
+        '1.0a5'
+        """
+        parts = []
+
+        # Epoch
+        if self.epoch != 0:
+            parts.append(f"{self.epoch}!")
+
+        # Release segment
+        parts.append(".".join(str(x) for x in self.release))
+
+        # Pre-release
+        if self.pre is not None:
+            parts.append("".join(str(x) for x in self.pre))
+
+        # Post-release
+        if self.post is not None:
+            parts.append(f".post{self.post}")
+
+        # Development release
+        if self.dev is not None:
+            parts.append(f".dev{self.dev}")
+
+        # Local version segment
+        if self.local is not None:
+            parts.append(f"+{self.local}")
+
+        return "".join(parts)
+
+    @property
+    def epoch(self) -> int:
+        """The epoch of the version.
+
+        >>> Version("2.0.0").epoch
+        0
+        >>> Version("1!2.0.0").epoch
+        1
+        """
+        return self._version.epoch
+
+    @property
+    def release(self) -> Tuple[int, ...]:
+        """The components of the "release" segment of the version.
+
+        >>> Version("1.2.3").release
+        (1, 2, 3)
+        >>> Version("2.0.0").release
+        (2, 0, 0)
+        >>> Version("1!2.0.0.post0").release
+        (2, 0, 0)
+
+        Includes trailing zeroes but not the epoch or any pre-release / development /
+        post-release suffixes.
+        """
+        return self._version.release
+
+    @property
+    def pre(self) -> Optional[Tuple[str, int]]:
+        """The pre-release segment of the version.
+
+        >>> print(Version("1.2.3").pre)
+        None
+        >>> Version("1.2.3a1").pre
+        ('a', 1)
+        >>> Version("1.2.3b1").pre
+        ('b', 1)
+        >>> Version("1.2.3rc1").pre
+        ('rc', 1)
+        """
+        return self._version.pre
+
+    @property
+    def post(self) -> Optional[int]:
+        """The post-release number of the version.
+
+        >>> print(Version("1.2.3").post)
+        None
+        >>> Version("1.2.3.post1").post
+        1
+        """
+        return self._version.post[1] if self._version.post else None
+
+    @property
+    def dev(self) -> Optional[int]:
+        """The development number of the version.
+
+        >>> print(Version("1.2.3").dev)
+        None
+        >>> Version("1.2.3.dev1").dev
+        1
+        """
+        return self._version.dev[1] if self._version.dev else None
+
+    @property
+    def local(self) -> Optional[str]:
+        """The local version segment of the version.
+
+        >>> print(Version("1.2.3").local)
+        None
+        >>> Version("1.2.3+abc").local
+        'abc'
+        """
+        if self._version.local:
+            return ".".join(str(x) for x in self._version.local)
+        else:
+            return None
+
+    @property
+    def public(self) -> str:
+        """The public portion of the version.
+
+        >>> Version("1.2.3").public
+        '1.2.3'
+        >>> Version("1.2.3+abc").public
+        '1.2.3'
+        >>> Version("1.2.3+abc.dev1").public
+        '1.2.3'
+        """
+        return str(self).split("+", 1)[0]
+
+    @property
+    def base_version(self) -> str:
+        """The "base version" of the version.
+
+        >>> Version("1.2.3").base_version
+        '1.2.3'
+        >>> Version("1.2.3+abc").base_version
+        '1.2.3'
+        >>> Version("1!1.2.3+abc.dev1").base_version
+        '1!1.2.3'
+
+        The "base version" is the public version of the project without any pre or post
+        release markers.
+        """
+        parts = []
+
+        # Epoch
+        if self.epoch != 0:
+            parts.append(f"{self.epoch}!")
+
+        # Release segment
+        parts.append(".".join(str(x) for x in self.release))
+
+        return "".join(parts)
+
+    @property
+    def is_prerelease(self) -> bool:
+        """Whether this version is a pre-release.
+
+        >>> Version("1.2.3").is_prerelease
+        False
+        >>> Version("1.2.3a1").is_prerelease
+        True
+        >>> Version("1.2.3b1").is_prerelease
+        True
+        >>> Version("1.2.3rc1").is_prerelease
+        True
+        >>> Version("1.2.3dev1").is_prerelease
+        True
+        """
+        return self.dev is not None or self.pre is not None
+
+    @property
+    def is_postrelease(self) -> bool:
+        """Whether this version is a post-release.
+
+        >>> Version("1.2.3").is_postrelease
+        False
+        >>> Version("1.2.3.post1").is_postrelease
+        True
+        """
+        return self.post is not None
+
+    @property
+    def is_devrelease(self) -> bool:
+        """Whether this version is a development release.
+
+        >>> Version("1.2.3").is_devrelease
+        False
+        >>> Version("1.2.3.dev1").is_devrelease
+        True
+        """
+        return self.dev is not None
+
+    @property
+    def major(self) -> int:
+        """The first item of :attr:`release` or ``0`` if unavailable.
+
+        >>> Version("1.2.3").major
+        1
+        """
+        return self.release[0] if len(self.release) >= 1 else 0
+
+    @property
+    def minor(self) -> int:
+        """The second item of :attr:`release` or ``0`` if unavailable.
+
+        >>> Version("1.2.3").minor
+        2
+        >>> Version("1").minor
+        0
+        """
+        return self.release[1] if len(self.release) >= 2 else 0
+
+    @property
+    def micro(self) -> int:
+        """The third item of :attr:`release` or ``0`` if unavailable.
+
+        >>> Version("1.2.3").micro
+        3
+        >>> Version("1").micro
+        0
+        """
+        return self.release[2] if len(self.release) >= 3 else 0
+
+
+def _parse_letter_version(
+    letter: Optional[str], number: Union[str, bytes, SupportsInt, None]
+) -> Optional[Tuple[str, int]]:
+    if letter:
+        # We consider there to be an implicit 0 in a pre-release if there is
+        # not a numeral associated with it.
+        if number is None:
+            number = 0
+
+        # We normalize any letters to their lower case form
+        letter = letter.lower()
+
+        # We consider some words to be alternate spellings of other words and
+        # in those cases we want to normalize the spellings to our preferred
+        # spelling.
+        if letter == "alpha":
+            letter = "a"
+        elif letter == "beta":
+            letter = "b"
+        elif letter in ["c", "pre", "preview"]:
+            letter = "rc"
+        elif letter in ["rev", "r"]:
+            letter = "post"
+
+        return letter, int(number)
+    if not letter and number:
+        # We assume if we are given a number, but we are not given a letter
+        # then this is using the implicit post release syntax (e.g. 1.0-1)
+        letter = "post"
+
+        return letter, int(number)
+
+    return None
+
+
+_local_version_separators = re.compile(r"[\._-]")
+
+
+def _parse_local_version(local: Optional[str]) -> Optional[LocalType]:
+    """
+    Takes a string like abc.1.twelve and turns it into ("abc", 1, "twelve").
+    """
+    if local is not None:
+        return tuple(
+            part.lower() if not part.isdigit() else int(part)
+            for part in _local_version_separators.split(local)
+        )
+    return None
+
+
+def _cmpkey(
+    epoch: int,
+    release: Tuple[int, ...],
+    pre: Optional[Tuple[str, int]],
+    post: Optional[Tuple[str, int]],
+    dev: Optional[Tuple[str, int]],
+    local: Optional[LocalType],
+) -> CmpKey:
+    # When we compare a release version, we want to compare it with all of the
+    # trailing zeros removed. So we'll use a reverse the list, drop all the now
+    # leading zeros until we come to something non zero, then take the rest
+    # re-reverse it back into the correct order and make it a tuple and use
+    # that for our sorting key.
+    _release = tuple(
+        reversed(list(itertools.dropwhile(lambda x: x == 0, reversed(release))))
+    )
+
+    # We need to "trick" the sorting algorithm to put 1.0.dev0 before 1.0a0.
+    # We'll do this by abusing the pre segment, but we _only_ want to do this
+    # if there is not a pre or a post segment. If we have one of those then
+    # the normal sorting rules will handle this case correctly.
+    if pre is None and post is None and dev is not None:
+        _pre: CmpPrePostDevType = NegativeInfinity
+    # Versions without a pre-release (except as noted above) should sort after
+    # those with one.
+    elif pre is None:
+        _pre = Infinity
+    else:
+        _pre = pre
+
+    # Versions without a post segment should sort before those with one.
+    if post is None:
+        _post: CmpPrePostDevType = NegativeInfinity
+
+    else:
+        _post = post
+
+    # Versions without a development segment should sort after those with one.
+    if dev is None:
+        _dev: CmpPrePostDevType = Infinity
+
+    else:
+        _dev = dev
+
+    if local is None:
+        # Versions without a local segment should sort before those with one.
+        _local: CmpLocalType = NegativeInfinity
+    else:
+        # Versions with a local segment need that segment parsed to implement
+        # the sorting rules in PEP440.
+        # - Alpha numeric segments sort before numeric segments
+        # - Alpha numeric segments sort lexicographically
+        # - Numeric segments sort numerically
+        # - Shorter versions sort before longer versions when the prefixes
+        #   match exactly
+        _local = tuple(
+            (i, "") if isinstance(i, int) else (NegativeInfinity, i) for i in local
+        )
+
+    return epoch, _release, _pre, _post, _dev, _local
diff --git a/setuptools/_vendor/wheel/vendored/vendor.txt b/setuptools/_vendor/wheel/vendored/vendor.txt
new file mode 100644
index 0000000000..14666103a8
--- /dev/null
+++ b/setuptools/_vendor/wheel/vendored/vendor.txt
@@ -0,0 +1 @@
+packaging==24.0
diff --git a/setuptools/_vendor/wheel/wheelfile.py b/setuptools/_vendor/wheel/wheelfile.py
new file mode 100644
index 0000000000..0a0f4596c5
--- /dev/null
+++ b/setuptools/_vendor/wheel/wheelfile.py
@@ -0,0 +1,227 @@
+from __future__ import annotations
+
+import csv
+import hashlib
+import os.path
+import re
+import stat
+import time
+from io import StringIO, TextIOWrapper
+from typing import IO, TYPE_CHECKING, Literal
+from zipfile import ZIP_DEFLATED, ZipFile, ZipInfo
+
+from wheel.cli import WheelError
+from wheel.util import log, urlsafe_b64decode, urlsafe_b64encode
+
+if TYPE_CHECKING:
+    from typing import Protocol, Sized, Union
+
+    from typing_extensions import Buffer
+
+    StrPath = Union[str, os.PathLike[str]]
+
+    class SizedBuffer(Sized, Buffer, Protocol): ...
+
+
+# Non-greedy matching of an optional build number may be too clever (more
+# invalid wheel filenames will match). Separate regex for .dist-info?
+WHEEL_INFO_RE = re.compile(
+    r"""^(?P(?P[^\s-]+?)-(?P[^\s-]+?))(-(?P\d[^\s-]*))?
+     -(?P[^\s-]+?)-(?P[^\s-]+?)-(?P\S+)\.whl$""",
+    re.VERBOSE,
+)
+MINIMUM_TIMESTAMP = 315532800  # 1980-01-01 00:00:00 UTC
+
+
+def get_zipinfo_datetime(timestamp: float | None = None):
+    # Some applications need reproducible .whl files, but they can't do this without
+    # forcing the timestamp of the individual ZipInfo objects. See issue #143.
+    timestamp = int(os.environ.get("SOURCE_DATE_EPOCH", timestamp or time.time()))
+    timestamp = max(timestamp, MINIMUM_TIMESTAMP)
+    return time.gmtime(timestamp)[0:6]
+
+
+class WheelFile(ZipFile):
+    """A ZipFile derivative class that also reads SHA-256 hashes from
+    .dist-info/RECORD and checks any read files against those.
+    """
+
+    _default_algorithm = hashlib.sha256
+
+    def __init__(
+        self,
+        file: StrPath,
+        mode: Literal["r", "w", "x", "a"] = "r",
+        compression: int = ZIP_DEFLATED,
+    ):
+        basename = os.path.basename(file)
+        self.parsed_filename = WHEEL_INFO_RE.match(basename)
+        if not basename.endswith(".whl") or self.parsed_filename is None:
+            raise WheelError(f"Bad wheel filename {basename!r}")
+
+        ZipFile.__init__(self, file, mode, compression=compression, allowZip64=True)
+
+        self.dist_info_path = "{}.dist-info".format(
+            self.parsed_filename.group("namever")
+        )
+        self.record_path = self.dist_info_path + "/RECORD"
+        self._file_hashes: dict[str, tuple[None, None] | tuple[int, bytes]] = {}
+        self._file_sizes = {}
+        if mode == "r":
+            # Ignore RECORD and any embedded wheel signatures
+            self._file_hashes[self.record_path] = None, None
+            self._file_hashes[self.record_path + ".jws"] = None, None
+            self._file_hashes[self.record_path + ".p7s"] = None, None
+
+            # Fill in the expected hashes by reading them from RECORD
+            try:
+                record = self.open(self.record_path)
+            except KeyError:
+                raise WheelError(f"Missing {self.record_path} file") from None
+
+            with record:
+                for line in csv.reader(
+                    TextIOWrapper(record, newline="", encoding="utf-8")
+                ):
+                    path, hash_sum, size = line
+                    if not hash_sum:
+                        continue
+
+                    algorithm, hash_sum = hash_sum.split("=")
+                    try:
+                        hashlib.new(algorithm)
+                    except ValueError:
+                        raise WheelError(
+                            f"Unsupported hash algorithm: {algorithm}"
+                        ) from None
+
+                    if algorithm.lower() in {"md5", "sha1"}:
+                        raise WheelError(
+                            f"Weak hash algorithm ({algorithm}) is not permitted by "
+                            f"PEP 427"
+                        )
+
+                    self._file_hashes[path] = (
+                        algorithm,
+                        urlsafe_b64decode(hash_sum.encode("ascii")),
+                    )
+
+    def open(
+        self,
+        name_or_info: str | ZipInfo,
+        mode: Literal["r", "w"] = "r",
+        pwd: bytes | None = None,
+    ) -> IO[bytes]:
+        def _update_crc(newdata: bytes) -> None:
+            eof = ef._eof
+            update_crc_orig(newdata)
+            running_hash.update(newdata)
+            if eof and running_hash.digest() != expected_hash:
+                raise WheelError(f"Hash mismatch for file '{ef_name}'")
+
+        ef_name = (
+            name_or_info.filename if isinstance(name_or_info, ZipInfo) else name_or_info
+        )
+        if (
+            mode == "r"
+            and not ef_name.endswith("/")
+            and ef_name not in self._file_hashes
+        ):
+            raise WheelError(f"No hash found for file '{ef_name}'")
+
+        ef = ZipFile.open(self, name_or_info, mode, pwd)
+        if mode == "r" and not ef_name.endswith("/"):
+            algorithm, expected_hash = self._file_hashes[ef_name]
+            if expected_hash is not None:
+                # Monkey patch the _update_crc method to also check for the hash from
+                # RECORD
+                running_hash = hashlib.new(algorithm)
+                update_crc_orig, ef._update_crc = ef._update_crc, _update_crc
+
+        return ef
+
+    def write_files(self, base_dir: str):
+        log.info(f"creating '{self.filename}' and adding '{base_dir}' to it")
+        deferred: list[tuple[str, str]] = []
+        for root, dirnames, filenames in os.walk(base_dir):
+            # Sort the directory names so that `os.walk` will walk them in a
+            # defined order on the next iteration.
+            dirnames.sort()
+            for name in sorted(filenames):
+                path = os.path.normpath(os.path.join(root, name))
+                if os.path.isfile(path):
+                    arcname = os.path.relpath(path, base_dir).replace(os.path.sep, "/")
+                    if arcname == self.record_path:
+                        pass
+                    elif root.endswith(".dist-info"):
+                        deferred.append((path, arcname))
+                    else:
+                        self.write(path, arcname)
+
+        deferred.sort()
+        for path, arcname in deferred:
+            self.write(path, arcname)
+
+    def write(
+        self,
+        filename: str,
+        arcname: str | None = None,
+        compress_type: int | None = None,
+    ) -> None:
+        with open(filename, "rb") as f:
+            st = os.fstat(f.fileno())
+            data = f.read()
+
+        zinfo = ZipInfo(
+            arcname or filename, date_time=get_zipinfo_datetime(st.st_mtime)
+        )
+        zinfo.external_attr = (stat.S_IMODE(st.st_mode) | stat.S_IFMT(st.st_mode)) << 16
+        zinfo.compress_type = compress_type or self.compression
+        self.writestr(zinfo, data, compress_type)
+
+    def writestr(
+        self,
+        zinfo_or_arcname: str | ZipInfo,
+        data: SizedBuffer | str,
+        compress_type: int | None = None,
+    ):
+        if isinstance(zinfo_or_arcname, str):
+            zinfo_or_arcname = ZipInfo(
+                zinfo_or_arcname, date_time=get_zipinfo_datetime()
+            )
+            zinfo_or_arcname.compress_type = self.compression
+            zinfo_or_arcname.external_attr = (0o664 | stat.S_IFREG) << 16
+
+        if isinstance(data, str):
+            data = data.encode("utf-8")
+
+        ZipFile.writestr(self, zinfo_or_arcname, data, compress_type)
+        fname = (
+            zinfo_or_arcname.filename
+            if isinstance(zinfo_or_arcname, ZipInfo)
+            else zinfo_or_arcname
+        )
+        log.info(f"adding '{fname}'")
+        if fname != self.record_path:
+            hash_ = self._default_algorithm(data)
+            self._file_hashes[fname] = (
+                hash_.name,
+                urlsafe_b64encode(hash_.digest()).decode("ascii"),
+            )
+            self._file_sizes[fname] = len(data)
+
+    def close(self):
+        # Write RECORD
+        if self.fp is not None and self.mode == "w" and self._file_hashes:
+            data = StringIO()
+            writer = csv.writer(data, delimiter=",", quotechar='"', lineterminator="\n")
+            writer.writerows(
+                (
+                    (fname, algorithm + "=" + hash_, self._file_sizes[fname])
+                    for fname, (algorithm, hash_) in self._file_hashes.items()
+                )
+            )
+            writer.writerow((format(self.record_path), "", ""))
+            self.writestr(self.record_path, data.getvalue())
+
+        ZipFile.close(self)
diff --git a/setuptools/_vendor/zipp-3.19.2.dist-info/INSTALLER b/setuptools/_vendor/zipp-3.19.2.dist-info/INSTALLER
new file mode 100644
index 0000000000..a1b589e38a
--- /dev/null
+++ b/setuptools/_vendor/zipp-3.19.2.dist-info/INSTALLER
@@ -0,0 +1 @@
+pip
diff --git a/setuptools/_vendor/zipp-3.19.2.dist-info/LICENSE b/setuptools/_vendor/zipp-3.19.2.dist-info/LICENSE
new file mode 100644
index 0000000000..1bb5a44356
--- /dev/null
+++ b/setuptools/_vendor/zipp-3.19.2.dist-info/LICENSE
@@ -0,0 +1,17 @@
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE.
diff --git a/setuptools/_vendor/zipp-3.19.2.dist-info/METADATA b/setuptools/_vendor/zipp-3.19.2.dist-info/METADATA
new file mode 100644
index 0000000000..1399281717
--- /dev/null
+++ b/setuptools/_vendor/zipp-3.19.2.dist-info/METADATA
@@ -0,0 +1,102 @@
+Metadata-Version: 2.1
+Name: zipp
+Version: 3.19.2
+Summary: Backport of pathlib-compatible object wrapper for zip files
+Author-email: "Jason R. Coombs" 
+Project-URL: Homepage, https://github.com/jaraco/zipp
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Intended Audience :: Developers
+Classifier: License :: OSI Approved :: MIT License
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3 :: Only
+Requires-Python: >=3.8
+Description-Content-Type: text/x-rst
+License-File: LICENSE
+Provides-Extra: doc
+Requires-Dist: sphinx >=3.5 ; extra == 'doc'
+Requires-Dist: jaraco.packaging >=9.3 ; extra == 'doc'
+Requires-Dist: rst.linker >=1.9 ; extra == 'doc'
+Requires-Dist: furo ; extra == 'doc'
+Requires-Dist: sphinx-lint ; extra == 'doc'
+Requires-Dist: jaraco.tidelift >=1.4 ; extra == 'doc'
+Provides-Extra: test
+Requires-Dist: pytest !=8.1.*,>=6 ; extra == 'test'
+Requires-Dist: pytest-checkdocs >=2.4 ; extra == 'test'
+Requires-Dist: pytest-cov ; extra == 'test'
+Requires-Dist: pytest-mypy ; extra == 'test'
+Requires-Dist: pytest-enabler >=2.2 ; extra == 'test'
+Requires-Dist: pytest-ruff >=0.2.1 ; extra == 'test'
+Requires-Dist: jaraco.itertools ; extra == 'test'
+Requires-Dist: jaraco.functools ; extra == 'test'
+Requires-Dist: more-itertools ; extra == 'test'
+Requires-Dist: big-O ; extra == 'test'
+Requires-Dist: pytest-ignore-flaky ; extra == 'test'
+Requires-Dist: jaraco.test ; extra == 'test'
+Requires-Dist: importlib-resources ; (python_version < "3.9") and extra == 'test'
+
+.. image:: https://img.shields.io/pypi/v/zipp.svg
+   :target: https://pypi.org/project/zipp
+
+.. image:: https://img.shields.io/pypi/pyversions/zipp.svg
+
+.. image:: https://github.com/jaraco/zipp/actions/workflows/main.yml/badge.svg
+   :target: https://github.com/jaraco/zipp/actions?query=workflow%3A%22tests%22
+   :alt: tests
+
+.. image:: https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/charliermarsh/ruff/main/assets/badge/v2.json
+    :target: https://github.com/astral-sh/ruff
+    :alt: Ruff
+
+.. .. image:: https://readthedocs.org/projects/PROJECT_RTD/badge/?version=latest
+..    :target: https://PROJECT_RTD.readthedocs.io/en/latest/?badge=latest
+
+.. image:: https://img.shields.io/badge/skeleton-2024-informational
+   :target: https://blog.jaraco.com/skeleton
+
+.. image:: https://tidelift.com/badges/package/pypi/zipp
+   :target: https://tidelift.com/subscription/pkg/pypi-zipp?utm_source=pypi-zipp&utm_medium=readme
+
+
+A pathlib-compatible Zipfile object wrapper. Official backport of the standard library
+`Path object `_.
+
+
+Compatibility
+=============
+
+New features are introduced in this third-party library and later merged
+into CPython. The following table indicates which versions of this library
+were contributed to different versions in the standard library:
+
+.. list-table::
+   :header-rows: 1
+
+   * - zipp
+     - stdlib
+   * - 3.18
+     - 3.13
+   * - 3.16
+     - 3.12
+   * - 3.5
+     - 3.11
+   * - 3.2
+     - 3.10
+   * - 3.3 ??
+     - 3.9
+   * - 1.0
+     - 3.8
+
+
+Usage
+=====
+
+Use ``zipp.Path`` in place of ``zipfile.Path`` on any Python.
+
+For Enterprise
+==============
+
+Available as part of the Tidelift Subscription.
+
+This project and the maintainers of thousands of other packages are working with Tidelift to deliver one enterprise subscription that covers all of the open source you use.
+
+`Learn more `_.
diff --git a/setuptools/_vendor/zipp-3.19.2.dist-info/RECORD b/setuptools/_vendor/zipp-3.19.2.dist-info/RECORD
new file mode 100644
index 0000000000..77c02835d8
--- /dev/null
+++ b/setuptools/_vendor/zipp-3.19.2.dist-info/RECORD
@@ -0,0 +1,15 @@
+zipp-3.19.2.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4
+zipp-3.19.2.dist-info/LICENSE,sha256=htoPAa6uRjSKPD1GUZXcHOzN55956HdppkuNoEsqR0E,1023
+zipp-3.19.2.dist-info/METADATA,sha256=UIrk_kMIHGSwsKKChYizqMw0MMZpPRZ2ZiVpQAsN_bE,3575
+zipp-3.19.2.dist-info/RECORD,,
+zipp-3.19.2.dist-info/REQUESTED,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0
+zipp-3.19.2.dist-info/WHEEL,sha256=GJ7t_kWBFywbagK5eo9IoUwLW6oyOeTKmQ-9iHFVNxQ,92
+zipp-3.19.2.dist-info/top_level.txt,sha256=iAbdoSHfaGqBfVb2XuR9JqSQHCoOsOtG6y9C_LSpqFw,5
+zipp/__init__.py,sha256=QuI1g00G4fRAcGt-HqbV0oWIkmSgedCGGYsHHYzNa8A,13412
+zipp/__pycache__/__init__.cpython-312.pyc,,
+zipp/__pycache__/glob.cpython-312.pyc,,
+zipp/compat/__init__.py,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0
+zipp/compat/__pycache__/__init__.cpython-312.pyc,,
+zipp/compat/__pycache__/py310.cpython-312.pyc,,
+zipp/compat/py310.py,sha256=eZpkW0zRtunkhEh8jjX3gCGe22emoKCBJw72Zt4RkhA,219
+zipp/glob.py,sha256=etWpnfEoRyfUvrUsi6sTiGmErvPwe6HzY6pT8jg_lUI,3082
diff --git a/setuptools/_vendor/zipp-3.19.2.dist-info/REQUESTED b/setuptools/_vendor/zipp-3.19.2.dist-info/REQUESTED
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/setuptools/_vendor/zipp-3.19.2.dist-info/WHEEL b/setuptools/_vendor/zipp-3.19.2.dist-info/WHEEL
new file mode 100644
index 0000000000..bab98d6758
--- /dev/null
+++ b/setuptools/_vendor/zipp-3.19.2.dist-info/WHEEL
@@ -0,0 +1,5 @@
+Wheel-Version: 1.0
+Generator: bdist_wheel (0.43.0)
+Root-Is-Purelib: true
+Tag: py3-none-any
+
diff --git a/setuptools/_vendor/zipp-3.19.2.dist-info/top_level.txt b/setuptools/_vendor/zipp-3.19.2.dist-info/top_level.txt
new file mode 100644
index 0000000000..e82f676f82
--- /dev/null
+++ b/setuptools/_vendor/zipp-3.19.2.dist-info/top_level.txt
@@ -0,0 +1 @@
+zipp
diff --git a/setuptools/_vendor/zipp/__init__.py b/setuptools/_vendor/zipp/__init__.py
new file mode 100644
index 0000000000..d65297b835
--- /dev/null
+++ b/setuptools/_vendor/zipp/__init__.py
@@ -0,0 +1,501 @@
+import io
+import posixpath
+import zipfile
+import itertools
+import contextlib
+import pathlib
+import re
+import stat
+import sys
+
+from .compat.py310 import text_encoding
+from .glob import Translator
+
+
+__all__ = ['Path']
+
+
+def _parents(path):
+    """
+    Given a path with elements separated by
+    posixpath.sep, generate all parents of that path.
+
+    >>> list(_parents('b/d'))
+    ['b']
+    >>> list(_parents('/b/d/'))
+    ['/b']
+    >>> list(_parents('b/d/f/'))
+    ['b/d', 'b']
+    >>> list(_parents('b'))
+    []
+    >>> list(_parents(''))
+    []
+    """
+    return itertools.islice(_ancestry(path), 1, None)
+
+
+def _ancestry(path):
+    """
+    Given a path with elements separated by
+    posixpath.sep, generate all elements of that path
+
+    >>> list(_ancestry('b/d'))
+    ['b/d', 'b']
+    >>> list(_ancestry('/b/d/'))
+    ['/b/d', '/b']
+    >>> list(_ancestry('b/d/f/'))
+    ['b/d/f', 'b/d', 'b']
+    >>> list(_ancestry('b'))
+    ['b']
+    >>> list(_ancestry(''))
+    []
+    """
+    path = path.rstrip(posixpath.sep)
+    while path and path != posixpath.sep:
+        yield path
+        path, tail = posixpath.split(path)
+
+
+_dedupe = dict.fromkeys
+"""Deduplicate an iterable in original order"""
+
+
+def _difference(minuend, subtrahend):
+    """
+    Return items in minuend not in subtrahend, retaining order
+    with O(1) lookup.
+    """
+    return itertools.filterfalse(set(subtrahend).__contains__, minuend)
+
+
+class InitializedState:
+    """
+    Mix-in to save the initialization state for pickling.
+    """
+
+    def __init__(self, *args, **kwargs):
+        self.__args = args
+        self.__kwargs = kwargs
+        super().__init__(*args, **kwargs)
+
+    def __getstate__(self):
+        return self.__args, self.__kwargs
+
+    def __setstate__(self, state):
+        args, kwargs = state
+        super().__init__(*args, **kwargs)
+
+
+class SanitizedNames:
+    """
+    ZipFile mix-in to ensure names are sanitized.
+    """
+
+    def namelist(self):
+        return list(map(self._sanitize, super().namelist()))
+
+    @staticmethod
+    def _sanitize(name):
+        r"""
+        Ensure a relative path with posix separators and no dot names.
+
+        Modeled after
+        https://github.com/python/cpython/blob/bcc1be39cb1d04ad9fc0bd1b9193d3972835a57c/Lib/zipfile/__init__.py#L1799-L1813
+        but provides consistent cross-platform behavior.
+
+        >>> san = SanitizedNames._sanitize
+        >>> san('/foo/bar')
+        'foo/bar'
+        >>> san('//foo.txt')
+        'foo.txt'
+        >>> san('foo/.././bar.txt')
+        'foo/bar.txt'
+        >>> san('foo../.bar.txt')
+        'foo../.bar.txt'
+        >>> san('\\foo\\bar.txt')
+        'foo/bar.txt'
+        >>> san('D:\\foo.txt')
+        'D/foo.txt'
+        >>> san('\\\\server\\share\\file.txt')
+        'server/share/file.txt'
+        >>> san('\\\\?\\GLOBALROOT\\Volume3')
+        '?/GLOBALROOT/Volume3'
+        >>> san('\\\\.\\PhysicalDrive1\\root')
+        'PhysicalDrive1/root'
+
+        Retain any trailing slash.
+        >>> san('abc/')
+        'abc/'
+
+        Raises a ValueError if the result is empty.
+        >>> san('../..')
+        Traceback (most recent call last):
+        ...
+        ValueError: Empty filename
+        """
+
+        def allowed(part):
+            return part and part not in {'..', '.'}
+
+        # Remove the drive letter.
+        # Don't use ntpath.splitdrive, because that also strips UNC paths
+        bare = re.sub('^([A-Z]):', r'\1', name, flags=re.IGNORECASE)
+        clean = bare.replace('\\', '/')
+        parts = clean.split('/')
+        joined = '/'.join(filter(allowed, parts))
+        if not joined:
+            raise ValueError("Empty filename")
+        return joined + '/' * name.endswith('/')
+
+
+class CompleteDirs(InitializedState, SanitizedNames, zipfile.ZipFile):
+    """
+    A ZipFile subclass that ensures that implied directories
+    are always included in the namelist.
+
+    >>> list(CompleteDirs._implied_dirs(['foo/bar.txt', 'foo/bar/baz.txt']))
+    ['foo/', 'foo/bar/']
+    >>> list(CompleteDirs._implied_dirs(['foo/bar.txt', 'foo/bar/baz.txt', 'foo/bar/']))
+    ['foo/']
+    """
+
+    @staticmethod
+    def _implied_dirs(names):
+        parents = itertools.chain.from_iterable(map(_parents, names))
+        as_dirs = (p + posixpath.sep for p in parents)
+        return _dedupe(_difference(as_dirs, names))
+
+    def namelist(self):
+        names = super().namelist()
+        return names + list(self._implied_dirs(names))
+
+    def _name_set(self):
+        return set(self.namelist())
+
+    def resolve_dir(self, name):
+        """
+        If the name represents a directory, return that name
+        as a directory (with the trailing slash).
+        """
+        names = self._name_set()
+        dirname = name + '/'
+        dir_match = name not in names and dirname in names
+        return dirname if dir_match else name
+
+    def getinfo(self, name):
+        """
+        Supplement getinfo for implied dirs.
+        """
+        try:
+            return super().getinfo(name)
+        except KeyError:
+            if not name.endswith('/') or name not in self._name_set():
+                raise
+            return zipfile.ZipInfo(filename=name)
+
+    @classmethod
+    def make(cls, source):
+        """
+        Given a source (filename or zipfile), return an
+        appropriate CompleteDirs subclass.
+        """
+        if isinstance(source, CompleteDirs):
+            return source
+
+        if not isinstance(source, zipfile.ZipFile):
+            return cls(source)
+
+        # Only allow for FastLookup when supplied zipfile is read-only
+        if 'r' not in source.mode:
+            cls = CompleteDirs
+
+        source.__class__ = cls
+        return source
+
+    @classmethod
+    def inject(cls, zf: zipfile.ZipFile) -> zipfile.ZipFile:
+        """
+        Given a writable zip file zf, inject directory entries for
+        any directories implied by the presence of children.
+        """
+        for name in cls._implied_dirs(zf.namelist()):
+            zf.writestr(name, b"")
+        return zf
+
+
+class FastLookup(CompleteDirs):
+    """
+    ZipFile subclass to ensure implicit
+    dirs exist and are resolved rapidly.
+    """
+
+    def namelist(self):
+        with contextlib.suppress(AttributeError):
+            return self.__names
+        self.__names = super().namelist()
+        return self.__names
+
+    def _name_set(self):
+        with contextlib.suppress(AttributeError):
+            return self.__lookup
+        self.__lookup = super()._name_set()
+        return self.__lookup
+
+
+def _extract_text_encoding(encoding=None, *args, **kwargs):
+    # compute stack level so that the caller of the caller sees any warning.
+    is_pypy = sys.implementation.name == 'pypy'
+    stack_level = 3 + is_pypy
+    return text_encoding(encoding, stack_level), args, kwargs
+
+
+class Path:
+    """
+    A :class:`importlib.resources.abc.Traversable` interface for zip files.
+
+    Implements many of the features users enjoy from
+    :class:`pathlib.Path`.
+
+    Consider a zip file with this structure::
+
+        .
+        ├── a.txt
+        └── b
+            ├── c.txt
+            └── d
+                └── e.txt
+
+    >>> data = io.BytesIO()
+    >>> zf = zipfile.ZipFile(data, 'w')
+    >>> zf.writestr('a.txt', 'content of a')
+    >>> zf.writestr('b/c.txt', 'content of c')
+    >>> zf.writestr('b/d/e.txt', 'content of e')
+    >>> zf.filename = 'mem/abcde.zip'
+
+    Path accepts the zipfile object itself or a filename
+
+    >>> path = Path(zf)
+
+    From there, several path operations are available.
+
+    Directory iteration (including the zip file itself):
+
+    >>> a, b = path.iterdir()
+    >>> a
+    Path('mem/abcde.zip', 'a.txt')
+    >>> b
+    Path('mem/abcde.zip', 'b/')
+
+    name property:
+
+    >>> b.name
+    'b'
+
+    join with divide operator:
+
+    >>> c = b / 'c.txt'
+    >>> c
+    Path('mem/abcde.zip', 'b/c.txt')
+    >>> c.name
+    'c.txt'
+
+    Read text:
+
+    >>> c.read_text(encoding='utf-8')
+    'content of c'
+
+    existence:
+
+    >>> c.exists()
+    True
+    >>> (b / 'missing.txt').exists()
+    False
+
+    Coercion to string:
+
+    >>> import os
+    >>> str(c).replace(os.sep, posixpath.sep)
+    'mem/abcde.zip/b/c.txt'
+
+    At the root, ``name``, ``filename``, and ``parent``
+    resolve to the zipfile.
+
+    >>> str(path)
+    'mem/abcde.zip/'
+    >>> path.name
+    'abcde.zip'
+    >>> path.filename == pathlib.Path('mem/abcde.zip')
+    True
+    >>> str(path.parent)
+    'mem'
+
+    If the zipfile has no filename, such attributes are not
+    valid and accessing them will raise an Exception.
+
+    >>> zf.filename = None
+    >>> path.name
+    Traceback (most recent call last):
+    ...
+    TypeError: ...
+
+    >>> path.filename
+    Traceback (most recent call last):
+    ...
+    TypeError: ...
+
+    >>> path.parent
+    Traceback (most recent call last):
+    ...
+    TypeError: ...
+
+    # workaround python/cpython#106763
+    >>> pass
+    """
+
+    __repr = "{self.__class__.__name__}({self.root.filename!r}, {self.at!r})"
+
+    def __init__(self, root, at=""):
+        """
+        Construct a Path from a ZipFile or filename.
+
+        Note: When the source is an existing ZipFile object,
+        its type (__class__) will be mutated to a
+        specialized type. If the caller wishes to retain the
+        original type, the caller should either create a
+        separate ZipFile object or pass a filename.
+        """
+        self.root = FastLookup.make(root)
+        self.at = at
+
+    def __eq__(self, other):
+        """
+        >>> Path(zipfile.ZipFile(io.BytesIO(), 'w')) == 'foo'
+        False
+        """
+        if self.__class__ is not other.__class__:
+            return NotImplemented
+        return (self.root, self.at) == (other.root, other.at)
+
+    def __hash__(self):
+        return hash((self.root, self.at))
+
+    def open(self, mode='r', *args, pwd=None, **kwargs):
+        """
+        Open this entry as text or binary following the semantics
+        of ``pathlib.Path.open()`` by passing arguments through
+        to io.TextIOWrapper().
+        """
+        if self.is_dir():
+            raise IsADirectoryError(self)
+        zip_mode = mode[0]
+        if not self.exists() and zip_mode == 'r':
+            raise FileNotFoundError(self)
+        stream = self.root.open(self.at, zip_mode, pwd=pwd)
+        if 'b' in mode:
+            if args or kwargs:
+                raise ValueError("encoding args invalid for binary operation")
+            return stream
+        # Text mode:
+        encoding, args, kwargs = _extract_text_encoding(*args, **kwargs)
+        return io.TextIOWrapper(stream, encoding, *args, **kwargs)
+
+    def _base(self):
+        return pathlib.PurePosixPath(self.at or self.root.filename)
+
+    @property
+    def name(self):
+        return self._base().name
+
+    @property
+    def suffix(self):
+        return self._base().suffix
+
+    @property
+    def suffixes(self):
+        return self._base().suffixes
+
+    @property
+    def stem(self):
+        return self._base().stem
+
+    @property
+    def filename(self):
+        return pathlib.Path(self.root.filename).joinpath(self.at)
+
+    def read_text(self, *args, **kwargs):
+        encoding, args, kwargs = _extract_text_encoding(*args, **kwargs)
+        with self.open('r', encoding, *args, **kwargs) as strm:
+            return strm.read()
+
+    def read_bytes(self):
+        with self.open('rb') as strm:
+            return strm.read()
+
+    def _is_child(self, path):
+        return posixpath.dirname(path.at.rstrip("/")) == self.at.rstrip("/")
+
+    def _next(self, at):
+        return self.__class__(self.root, at)
+
+    def is_dir(self):
+        return not self.at or self.at.endswith("/")
+
+    def is_file(self):
+        return self.exists() and not self.is_dir()
+
+    def exists(self):
+        return self.at in self.root._name_set()
+
+    def iterdir(self):
+        if not self.is_dir():
+            raise ValueError("Can't listdir a file")
+        subs = map(self._next, self.root.namelist())
+        return filter(self._is_child, subs)
+
+    def match(self, path_pattern):
+        return pathlib.PurePosixPath(self.at).match(path_pattern)
+
+    def is_symlink(self):
+        """
+        Return whether this path is a symlink.
+        """
+        info = self.root.getinfo(self.at)
+        mode = info.external_attr >> 16
+        return stat.S_ISLNK(mode)
+
+    def glob(self, pattern):
+        if not pattern:
+            raise ValueError(f"Unacceptable pattern: {pattern!r}")
+
+        prefix = re.escape(self.at)
+        tr = Translator(seps='/')
+        matches = re.compile(prefix + tr.translate(pattern)).fullmatch
+        names = (data.filename for data in self.root.filelist)
+        return map(self._next, filter(matches, names))
+
+    def rglob(self, pattern):
+        return self.glob(f'**/{pattern}')
+
+    def relative_to(self, other, *extra):
+        return posixpath.relpath(str(self), str(other.joinpath(*extra)))
+
+    def __str__(self):
+        return posixpath.join(self.root.filename, self.at)
+
+    def __repr__(self):
+        return self.__repr.format(self=self)
+
+    def joinpath(self, *other):
+        next = posixpath.join(self.at, *other)
+        return self._next(self.root.resolve_dir(next))
+
+    __truediv__ = joinpath
+
+    @property
+    def parent(self):
+        if not self.at:
+            return self.filename.parent
+        parent_at = posixpath.dirname(self.at.rstrip('/'))
+        if parent_at:
+            parent_at += '/'
+        return self._next(parent_at)
diff --git a/setuptools/_vendor/zipp/compat/__init__.py b/setuptools/_vendor/zipp/compat/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/setuptools/_vendor/zipp/compat/py310.py b/setuptools/_vendor/zipp/compat/py310.py
new file mode 100644
index 0000000000..d5ca53e037
--- /dev/null
+++ b/setuptools/_vendor/zipp/compat/py310.py
@@ -0,0 +1,11 @@
+import sys
+import io
+
+
+def _text_encoding(encoding, stacklevel=2, /):  # pragma: no cover
+    return encoding
+
+
+text_encoding = (
+    io.text_encoding if sys.version_info > (3, 10) else _text_encoding  # type: ignore
+)
diff --git a/setuptools/_vendor/zipp/glob.py b/setuptools/_vendor/zipp/glob.py
new file mode 100644
index 0000000000..69c41d77c3
--- /dev/null
+++ b/setuptools/_vendor/zipp/glob.py
@@ -0,0 +1,106 @@
+import os
+import re
+
+
+_default_seps = os.sep + str(os.altsep) * bool(os.altsep)
+
+
+class Translator:
+    """
+    >>> Translator('xyz')
+    Traceback (most recent call last):
+    ...
+    AssertionError: Invalid separators
+
+    >>> Translator('')
+    Traceback (most recent call last):
+    ...
+    AssertionError: Invalid separators
+    """
+
+    seps: str
+
+    def __init__(self, seps: str = _default_seps):
+        assert seps and set(seps) <= set(_default_seps), "Invalid separators"
+        self.seps = seps
+
+    def translate(self, pattern):
+        """
+        Given a glob pattern, produce a regex that matches it.
+        """
+        return self.extend(self.translate_core(pattern))
+
+    def extend(self, pattern):
+        r"""
+        Extend regex for pattern-wide concerns.
+
+        Apply '(?s:)' to create a non-matching group that
+        matches newlines (valid on Unix).
+
+        Append '\Z' to imply fullmatch even when match is used.
+        """
+        return rf'(?s:{pattern})\Z'
+
+    def translate_core(self, pattern):
+        r"""
+        Given a glob pattern, produce a regex that matches it.
+
+        >>> t = Translator()
+        >>> t.translate_core('*.txt').replace('\\\\', '')
+        '[^/]*\\.txt'
+        >>> t.translate_core('a?txt')
+        'a[^/]txt'
+        >>> t.translate_core('**/*').replace('\\\\', '')
+        '.*/[^/][^/]*'
+        """
+        self.restrict_rglob(pattern)
+        return ''.join(map(self.replace, separate(self.star_not_empty(pattern))))
+
+    def replace(self, match):
+        """
+        Perform the replacements for a match from :func:`separate`.
+        """
+        return match.group('set') or (
+            re.escape(match.group(0))
+            .replace('\\*\\*', r'.*')
+            .replace('\\*', rf'[^{re.escape(self.seps)}]*')
+            .replace('\\?', r'[^/]')
+        )
+
+    def restrict_rglob(self, pattern):
+        """
+        Raise ValueError if ** appears in anything but a full path segment.
+
+        >>> Translator().translate('**foo')
+        Traceback (most recent call last):
+        ...
+        ValueError: ** must appear alone in a path segment
+        """
+        seps_pattern = rf'[{re.escape(self.seps)}]+'
+        segments = re.split(seps_pattern, pattern)
+        if any('**' in segment and segment != '**' for segment in segments):
+            raise ValueError("** must appear alone in a path segment")
+
+    def star_not_empty(self, pattern):
+        """
+        Ensure that * will not match an empty segment.
+        """
+
+        def handle_segment(match):
+            segment = match.group(0)
+            return '?*' if segment == '*' else segment
+
+        not_seps_pattern = rf'[^{re.escape(self.seps)}]+'
+        return re.sub(not_seps_pattern, handle_segment, pattern)
+
+
+def separate(pattern):
+    """
+    Separate out character sets to avoid translating their contents.
+
+    >>> [m.group(0) for m in separate('*.txt')]
+    ['*.txt']
+    >>> [m.group(0) for m in separate('a[?]txt')]
+    ['a', '[?]', 'txt']
+    """
+    return re.finditer(r'([^\[]+)|(?P[\[].*?[\]])|([\[][^\]]*$)', pattern)
diff --git a/setuptools/archive_util.py b/setuptools/archive_util.py
old mode 100755
new mode 100644
index ab786f3d01..1a02010bb2
--- a/setuptools/archive_util.py
+++ b/setuptools/archive_util.py
@@ -1,47 +1,39 @@
 """Utilities for extracting common archive formats"""
 
+import contextlib
+import os
+import posixpath
+import shutil
+import tarfile
+import zipfile
+
+from ._path import ensure_directory
+
+from distutils.errors import DistutilsError
 
 __all__ = [
-    "unpack_archive", "unpack_zipfile", "unpack_tarfile", "default_filter",
-    "UnrecognizedFormat", "extraction_drivers", "unpack_directory",
+    "unpack_archive",
+    "unpack_zipfile",
+    "unpack_tarfile",
+    "default_filter",
+    "UnrecognizedFormat",
+    "extraction_drivers",
+    "unpack_directory",
 ]
 
-import zipfile, tarfile, os, shutil
-from pkg_resources import ensure_directory
-from distutils.errors import DistutilsError
 
 class UnrecognizedFormat(DistutilsError):
     """Couldn't recognize the archive type"""
 
-def default_filter(src,dst):
-    """The default progress/filter callback; returns True for all files"""   
-    return dst
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
 
+def default_filter(src, dst):
+    """The default progress/filter callback; returns True for all files"""
+    return dst
 
 
-def unpack_archive(filename, extract_dir, progress_filter=default_filter,
-    drivers=None
-):
+def unpack_archive(
+    filename, extract_dir, progress_filter=default_filter, drivers=None
+) -> None:
     """Unpack `filename` to `extract_dir`, or raise ``UnrecognizedFormat``
 
     `progress_filter` is a function taking two arguments: a source path
@@ -70,58 +62,37 @@ def unpack_archive(filename, extract_dir, progress_filter=default_filter,
         else:
             return
     else:
-        raise UnrecognizedFormat(
-            "Not a recognized archive type: %s" % filename
-        )
-
-
-
+        raise UnrecognizedFormat(f"Not a recognized archive type: {filename}")
 
 
-
-
-def unpack_directory(filename, extract_dir, progress_filter=default_filter):
-    """"Unpack" a directory, using the same interface as for archives
+def unpack_directory(filename, extract_dir, progress_filter=default_filter) -> None:
+    """ "Unpack" a directory, using the same interface as for archives
 
     Raises ``UnrecognizedFormat`` if `filename` is not a directory
     """
     if not os.path.isdir(filename):
-        raise UnrecognizedFormat("%s is not a directory" % (filename,))
+        raise UnrecognizedFormat(f"{filename} is not a directory")
 
-    paths = {filename:('',extract_dir)}
+    paths = {
+        filename: ('', extract_dir),
+    }
     for base, dirs, files in os.walk(filename):
-        src,dst = paths[base]
+        src, dst = paths[base]
         for d in dirs:
-            paths[os.path.join(base,d)] = src+d+'/', os.path.join(dst,d)
+            paths[os.path.join(base, d)] = src + d + '/', os.path.join(dst, d)
         for f in files:
-            name = src+f
-            target = os.path.join(dst,f)
-            target = progress_filter(src+f, target)
+            target = os.path.join(dst, f)
+            target = progress_filter(src + f, target)
             if not target:
-                continue    # skip non-files
+                # skip non-files
+                continue
             ensure_directory(target)
-            f = os.path.join(base,f)
+            f = os.path.join(base, f)
             shutil.copyfile(f, target)
             shutil.copystat(f, target)
 
 
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-def unpack_zipfile(filename, extract_dir, progress_filter=default_filter):
+def unpack_zipfile(filename, extract_dir, progress_filter=default_filter) -> None:
     """Unpack zip `filename` to `extract_dir`
 
     Raises ``UnrecognizedFormat`` if `filename` is not a zipfile (as determined
@@ -130,79 +101,119 @@ def unpack_zipfile(filename, extract_dir, progress_filter=default_filter):
     """
 
     if not zipfile.is_zipfile(filename):
-        raise UnrecognizedFormat("%s is not a zip file" % (filename,))
+        raise UnrecognizedFormat(f"{filename} is not a zip file")
+
+    with zipfile.ZipFile(filename) as z:
+        _unpack_zipfile_obj(z, extract_dir, progress_filter)
 
-    z = zipfile.ZipFile(filename)
-    try:
-        for info in z.infolist():
-            name = info.filename
 
+def _unpack_zipfile_obj(zipfile_obj, extract_dir, progress_filter=default_filter):
+    """Internal/private API used by other parts of setuptools.
+    Similar to ``unpack_zipfile``, but receives an already opened :obj:`zipfile.ZipFile`
+    object instead of a filename.
+    """
+    for info in zipfile_obj.infolist():
+        name = info.filename
+
+        # don't extract absolute paths or ones with .. in them
+        if name.startswith('/') or '..' in name.split('/'):
+            continue
+
+        target = os.path.join(extract_dir, *name.split('/'))
+        target = progress_filter(name, target)
+        if not target:
+            continue
+        if name.endswith('/'):
+            # directory
+            ensure_directory(target)
+        else:
+            # file
+            ensure_directory(target)
+            data = zipfile_obj.read(info.filename)
+            with open(target, 'wb') as f:
+                f.write(data)
+        unix_attributes = info.external_attr >> 16
+        if unix_attributes:
+            os.chmod(target, unix_attributes)
+
+
+def _resolve_tar_file_or_dir(tar_obj, tar_member_obj):
+    """Resolve any links and extract link targets as normal files."""
+    while tar_member_obj is not None and (
+        tar_member_obj.islnk() or tar_member_obj.issym()
+    ):
+        linkpath = tar_member_obj.linkname
+        if tar_member_obj.issym():
+            base = posixpath.dirname(tar_member_obj.name)
+            linkpath = posixpath.join(base, linkpath)
+            linkpath = posixpath.normpath(linkpath)
+        tar_member_obj = tar_obj._getmember(linkpath)
+
+    is_file_or_dir = tar_member_obj is not None and (
+        tar_member_obj.isfile() or tar_member_obj.isdir()
+    )
+    if is_file_or_dir:
+        return tar_member_obj
+
+    raise LookupError('Got unknown file type')
+
+
+def _iter_open_tar(tar_obj, extract_dir, progress_filter):
+    """Emit member-destination pairs from a tar archive."""
+    # don't do any chowning!
+    tar_obj.chown = lambda *args: None
+
+    with contextlib.closing(tar_obj):
+        for member in tar_obj:
+            name = member.name
             # don't extract absolute paths or ones with .. in them
-            if name.startswith('/') or '..' in name:
+            if name.startswith('/') or '..' in name.split('/'):
                 continue
 
-            target = os.path.join(extract_dir, *name.split('/'))
-            target = progress_filter(name, target)
-            if not target:
+            prelim_dst = os.path.join(extract_dir, *name.split('/'))
+
+            try:
+                member = _resolve_tar_file_or_dir(tar_obj, member)
+            except LookupError:
+                continue
+
+            final_dst = progress_filter(name, prelim_dst)
+            if not final_dst:
                 continue
-            if name.endswith('/'):
-                # directory
-                ensure_directory(target)
-            else:
-                # file
-                ensure_directory(target)
-                data = z.read(info.filename)
-                f = open(target,'wb')
-                try:
-                    f.write(data)
-                finally:
-                    f.close()
-                    del data
-    finally:
-        z.close()
-
-
-def unpack_tarfile(filename, extract_dir, progress_filter=default_filter):
+
+            if final_dst.endswith(os.sep):
+                final_dst = final_dst[:-1]
+
+            yield member, final_dst
+
+
+def unpack_tarfile(filename, extract_dir, progress_filter=default_filter) -> bool:
     """Unpack tar/tar.gz/tar.bz2 `filename` to `extract_dir`
 
     Raises ``UnrecognizedFormat`` if `filename` is not a tarfile (as determined
     by ``tarfile.open()``).  See ``unpack_archive()`` for an explanation
     of the `progress_filter` argument.
     """
-
     try:
         tarobj = tarfile.open(filename)
-    except tarfile.TarError:
+    except tarfile.TarError as e:
         raise UnrecognizedFormat(
-            "%s is not a compressed or uncompressed tar file" % (filename,)
-        )
-
-    try:
-        tarobj.chown = lambda *args: None   # don't do any chowning!
-        for member in tarobj:
-            if member.isfile() or member.isdir():
-                name = member.name
-                # don't extract absolute paths or ones with .. in them
-                if not name.startswith('/') and '..' not in name:
-                    dst = os.path.join(extract_dir, *name.split('/'))                
-                    dst = progress_filter(name, dst)
-                    if dst:
-                        if dst.endswith(os.sep):
-                            dst = dst[:-1]
-                        try:
-                            tarobj._extract_member(member,dst)  # XXX Ugh
-                        except tarfile.ExtractError:
-                            pass    # chown/chmod/mkfifo/mknode/makedev failed
-        return True
-    finally:
-        tarobj.close()
-
+            f"{filename} is not a compressed or uncompressed tar file"
+        ) from e
+
+    for member, final_dst in _iter_open_tar(
+        tarobj,
+        extract_dir,
+        progress_filter,
+    ):
+        try:
+            # XXX Ugh
+            tarobj._extract_member(member, final_dst)
+        except tarfile.ExtractError:
+            # chown/chmod/mkfifo/mknode/makedev failed
+            pass
 
+    return True
 
 
 extraction_drivers = unpack_directory, unpack_zipfile, unpack_tarfile
-
-
-
-
-
diff --git a/setuptools/build_meta.py b/setuptools/build_meta.py
new file mode 100644
index 0000000000..8f2e930c73
--- /dev/null
+++ b/setuptools/build_meta.py
@@ -0,0 +1,548 @@
+"""A PEP 517 interface to setuptools
+
+Previously, when a user or a command line tool (let's call it a "frontend")
+needed to make a request of setuptools to take a certain action, for
+example, generating a list of installation requirements, the frontend
+would call "setup.py egg_info" or "setup.py bdist_wheel" on the command line.
+
+PEP 517 defines a different method of interfacing with setuptools. Rather
+than calling "setup.py" directly, the frontend should:
+
+  1. Set the current directory to the directory with a setup.py file
+  2. Import this module into a safe python interpreter (one in which
+     setuptools can potentially set global variables or crash hard).
+  3. Call one of the functions defined in PEP 517.
+
+What each function does is defined in PEP 517. However, here is a "casual"
+definition of the functions (this definition should not be relied on for
+bug reports or API stability):
+
+  - `build_wheel`: build a wheel in the folder and return the basename
+  - `get_requires_for_build_wheel`: get the `setup_requires` to build
+  - `prepare_metadata_for_build_wheel`: get the `install_requires`
+  - `build_sdist`: build an sdist in the folder and return the basename
+  - `get_requires_for_build_sdist`: get the `setup_requires` to build
+
+Again, this is not a formal definition! Just a "taste" of the module.
+"""
+
+from __future__ import annotations
+
+import contextlib
+import io
+import os
+import shlex
+import shutil
+import sys
+import tempfile
+import tokenize
+import warnings
+from collections.abc import Iterable, Iterator, Mapping
+from pathlib import Path
+from typing import TYPE_CHECKING, Union
+
+import setuptools
+
+from . import errors
+from ._path import StrPath, same_path
+from ._reqs import parse_strings
+from .warnings import SetuptoolsDeprecationWarning
+
+import distutils
+from distutils.util import strtobool
+
+if TYPE_CHECKING:
+    from typing_extensions import TypeAlias
+
+__all__ = [
+    'get_requires_for_build_sdist',
+    'get_requires_for_build_wheel',
+    'prepare_metadata_for_build_wheel',
+    'build_wheel',
+    'build_sdist',
+    'get_requires_for_build_editable',
+    'prepare_metadata_for_build_editable',
+    'build_editable',
+    '__legacy__',
+    'SetupRequirementsError',
+]
+
+
+class SetupRequirementsError(BaseException):
+    def __init__(self, specifiers) -> None:
+        self.specifiers = specifiers
+
+
+class Distribution(setuptools.dist.Distribution):
+    def fetch_build_eggs(self, specifiers):
+        specifier_list = list(parse_strings(specifiers))
+
+        raise SetupRequirementsError(specifier_list)
+
+    @classmethod
+    @contextlib.contextmanager
+    def patch(cls):
+        """
+        Replace
+        distutils.dist.Distribution with this class
+        for the duration of this context.
+        """
+        orig = distutils.core.Distribution
+        distutils.core.Distribution = cls  # type: ignore[misc] # monkeypatching
+        try:
+            yield
+        finally:
+            distutils.core.Distribution = orig  # type: ignore[misc] # monkeypatching
+
+
+@contextlib.contextmanager
+def no_install_setup_requires():
+    """Temporarily disable installing setup_requires
+
+    Under PEP 517, the backend reports build dependencies to the frontend,
+    and the frontend is responsible for ensuring they're installed.
+    So setuptools (acting as a backend) should not try to install them.
+    """
+    orig = setuptools._install_setup_requires
+    setuptools._install_setup_requires = lambda attrs: None
+    try:
+        yield
+    finally:
+        setuptools._install_setup_requires = orig
+
+
+def _get_immediate_subdirectories(a_dir):
+    return [
+        name for name in os.listdir(a_dir) if os.path.isdir(os.path.join(a_dir, name))
+    ]
+
+
+def _file_with_extension(directory: StrPath, extension: str | tuple[str, ...]):
+    matching = (f for f in os.listdir(directory) if f.endswith(extension))
+    try:
+        (file,) = matching
+    except ValueError:
+        raise ValueError(
+            'No distribution was found. Ensure that `setup.py` '
+            'is not empty and that it calls `setup()`.'
+        ) from None
+    return file
+
+
+def _open_setup_script(setup_script):
+    if not os.path.exists(setup_script):
+        # Supply a default setup.py
+        return io.StringIO("from setuptools import setup; setup()")
+
+    return tokenize.open(setup_script)
+
+
+@contextlib.contextmanager
+def suppress_known_deprecation():
+    with warnings.catch_warnings():
+        warnings.filterwarnings('ignore', 'setup.py install is deprecated')
+        yield
+
+
+_ConfigSettings: TypeAlias = Union[Mapping[str, Union[str, list[str], None]], None]
+"""
+Currently the user can run::
+
+    pip install -e . --config-settings key=value
+    python -m build -C--key=value -C key=value
+
+- pip will pass both key and value as strings and overwriting repeated keys
+  (pypa/pip#11059).
+- build will accumulate values associated with repeated keys in a list.
+  It will also accept keys with no associated value.
+  This means that an option passed by build can be ``str | list[str] | None``.
+- PEP 517 specifies that ``config_settings`` is an optional dict.
+"""
+
+
+class _ConfigSettingsTranslator:
+    """Translate ``config_settings`` into distutils-style command arguments.
+    Only a limited number of options is currently supported.
+    """
+
+    # See pypa/setuptools#1928 pypa/setuptools#2491
+
+    def _get_config(self, key: str, config_settings: _ConfigSettings) -> list[str]:
+        """
+        Get the value of a specific key in ``config_settings`` as a list of strings.
+
+        >>> fn = _ConfigSettingsTranslator()._get_config
+        >>> fn("--global-option", None)
+        []
+        >>> fn("--global-option", {})
+        []
+        >>> fn("--global-option", {'--global-option': 'foo'})
+        ['foo']
+        >>> fn("--global-option", {'--global-option': ['foo']})
+        ['foo']
+        >>> fn("--global-option", {'--global-option': 'foo'})
+        ['foo']
+        >>> fn("--global-option", {'--global-option': 'foo bar'})
+        ['foo', 'bar']
+        """
+        cfg = config_settings or {}
+        opts = cfg.get(key) or []
+        return shlex.split(opts) if isinstance(opts, str) else opts
+
+    def _global_args(self, config_settings: _ConfigSettings) -> Iterator[str]:
+        """
+        Let the user specify ``verbose`` or ``quiet`` + escape hatch via
+        ``--global-option``.
+        Note: ``-v``, ``-vv``, ``-vvv`` have similar effects in setuptools,
+        so we just have to cover the basic scenario ``-v``.
+
+        >>> fn = _ConfigSettingsTranslator()._global_args
+        >>> list(fn(None))
+        []
+        >>> list(fn({"verbose": "False"}))
+        ['-q']
+        >>> list(fn({"verbose": "1"}))
+        ['-v']
+        >>> list(fn({"--verbose": None}))
+        ['-v']
+        >>> list(fn({"verbose": "true", "--global-option": "-q --no-user-cfg"}))
+        ['-v', '-q', '--no-user-cfg']
+        >>> list(fn({"--quiet": None}))
+        ['-q']
+        """
+        cfg = config_settings or {}
+        falsey = {"false", "no", "0", "off"}
+        if "verbose" in cfg or "--verbose" in cfg:
+            level = str(cfg.get("verbose") or cfg.get("--verbose") or "1")
+            yield ("-q" if level.lower() in falsey else "-v")
+        if "quiet" in cfg or "--quiet" in cfg:
+            level = str(cfg.get("quiet") or cfg.get("--quiet") or "1")
+            yield ("-v" if level.lower() in falsey else "-q")
+
+        yield from self._get_config("--global-option", config_settings)
+
+    def __dist_info_args(self, config_settings: _ConfigSettings) -> Iterator[str]:
+        """
+        The ``dist_info`` command accepts ``tag-date`` and ``tag-build``.
+
+        .. warning::
+           We cannot use this yet as it requires the ``sdist`` and ``bdist_wheel``
+           commands run in ``build_sdist`` and ``build_wheel`` to reuse the egg-info
+           directory created in ``prepare_metadata_for_build_wheel``.
+
+        >>> fn = _ConfigSettingsTranslator()._ConfigSettingsTranslator__dist_info_args
+        >>> list(fn(None))
+        []
+        >>> list(fn({"tag-date": "False"}))
+        ['--no-date']
+        >>> list(fn({"tag-date": None}))
+        ['--no-date']
+        >>> list(fn({"tag-date": "true", "tag-build": ".a"}))
+        ['--tag-date', '--tag-build', '.a']
+        """
+        cfg = config_settings or {}
+        if "tag-date" in cfg:
+            val = strtobool(str(cfg["tag-date"] or "false"))
+            yield ("--tag-date" if val else "--no-date")
+        if "tag-build" in cfg:
+            yield from ["--tag-build", str(cfg["tag-build"])]
+
+    def _editable_args(self, config_settings: _ConfigSettings) -> Iterator[str]:
+        """
+        The ``editable_wheel`` command accepts ``editable-mode=strict``.
+
+        >>> fn = _ConfigSettingsTranslator()._editable_args
+        >>> list(fn(None))
+        []
+        >>> list(fn({"editable-mode": "strict"}))
+        ['--mode', 'strict']
+        """
+        cfg = config_settings or {}
+        mode = cfg.get("editable-mode") or cfg.get("editable_mode")
+        if not mode:
+            return
+        yield from ["--mode", str(mode)]
+
+    def _arbitrary_args(self, config_settings: _ConfigSettings) -> Iterator[str]:
+        """
+        Users may expect to pass arbitrary lists of arguments to a command
+        via "--global-option" (example provided in PEP 517 of a "escape hatch").
+
+        >>> fn = _ConfigSettingsTranslator()._arbitrary_args
+        >>> list(fn(None))
+        []
+        >>> list(fn({}))
+        []
+        >>> list(fn({'--build-option': 'foo'}))
+        ['foo']
+        >>> list(fn({'--build-option': ['foo']}))
+        ['foo']
+        >>> list(fn({'--build-option': 'foo'}))
+        ['foo']
+        >>> list(fn({'--build-option': 'foo bar'}))
+        ['foo', 'bar']
+        >>> list(fn({'--global-option': 'foo'}))
+        []
+        """
+        yield from self._get_config("--build-option", config_settings)
+
+
+class _BuildMetaBackend(_ConfigSettingsTranslator):
+    def _get_build_requires(
+        self, config_settings: _ConfigSettings, requirements: list[str]
+    ):
+        sys.argv = [
+            *sys.argv[:1],
+            *self._global_args(config_settings),
+            "egg_info",
+        ]
+        try:
+            with Distribution.patch():
+                self.run_setup()
+        except SetupRequirementsError as e:
+            requirements += e.specifiers
+
+        return requirements
+
+    def run_setup(self, setup_script: str = 'setup.py'):
+        # Note that we can reuse our build directory between calls
+        # Correctness comes first, then optimization later
+        __file__ = os.path.abspath(setup_script)
+        __name__ = '__main__'
+
+        with _open_setup_script(__file__) as f:
+            code = f.read().replace(r'\r\n', r'\n')
+
+        try:
+            exec(code, locals())
+        except SystemExit as e:
+            if e.code:
+                raise
+            # We ignore exit code indicating success
+            SetuptoolsDeprecationWarning.emit(
+                "Running `setup.py` directly as CLI tool is deprecated.",
+                "Please avoid using `sys.exit(0)` or similar statements "
+                "that don't fit in the paradigm of a configuration file.",
+                see_url="https://blog.ganssle.io/articles/2021/10/"
+                "setup-py-deprecated.html",
+            )
+
+    def get_requires_for_build_wheel(self, config_settings: _ConfigSettings = None):
+        return self._get_build_requires(config_settings, requirements=[])
+
+    def get_requires_for_build_sdist(self, config_settings: _ConfigSettings = None):
+        return self._get_build_requires(config_settings, requirements=[])
+
+    def _bubble_up_info_directory(
+        self, metadata_directory: StrPath, suffix: str
+    ) -> str:
+        """
+        PEP 517 requires that the .dist-info directory be placed in the
+        metadata_directory. To comply, we MUST copy the directory to the root.
+
+        Returns the basename of the info directory, e.g. `proj-0.0.0.dist-info`.
+        """
+        info_dir = self._find_info_directory(metadata_directory, suffix)
+        if not same_path(info_dir.parent, metadata_directory):
+            shutil.move(str(info_dir), metadata_directory)
+            # PEP 517 allow other files and dirs to exist in metadata_directory
+        return info_dir.name
+
+    def _find_info_directory(self, metadata_directory: StrPath, suffix: str) -> Path:
+        for parent, dirs, _ in os.walk(metadata_directory):
+            candidates = [f for f in dirs if f.endswith(suffix)]
+
+            if len(candidates) != 0 or len(dirs) != 1:
+                assert len(candidates) == 1, f"Multiple {suffix} directories found"
+                return Path(parent, candidates[0])
+
+        msg = f"No {suffix} directory found in {metadata_directory}"
+        raise errors.InternalError(msg)
+
+    def prepare_metadata_for_build_wheel(
+        self, metadata_directory: StrPath, config_settings: _ConfigSettings = None
+    ):
+        sys.argv = [
+            *sys.argv[:1],
+            *self._global_args(config_settings),
+            "dist_info",
+            "--output-dir",
+            str(metadata_directory),
+            "--keep-egg-info",
+        ]
+        with no_install_setup_requires():
+            self.run_setup()
+
+        self._bubble_up_info_directory(metadata_directory, ".egg-info")
+        return self._bubble_up_info_directory(metadata_directory, ".dist-info")
+
+    def _build_with_temp_dir(
+        self,
+        setup_command: Iterable[str],
+        result_extension: str | tuple[str, ...],
+        result_directory: StrPath,
+        config_settings: _ConfigSettings,
+        arbitrary_args: Iterable[str] = (),
+    ):
+        result_directory = os.path.abspath(result_directory)
+
+        # Build in a temporary directory, then copy to the target.
+        os.makedirs(result_directory, exist_ok=True)
+
+        with tempfile.TemporaryDirectory(
+            prefix=".tmp-", dir=result_directory
+        ) as tmp_dist_dir:
+            sys.argv = [
+                *sys.argv[:1],
+                *self._global_args(config_settings),
+                *setup_command,
+                "--dist-dir",
+                tmp_dist_dir,
+                *arbitrary_args,
+            ]
+            with no_install_setup_requires():
+                self.run_setup()
+
+            result_basename = _file_with_extension(tmp_dist_dir, result_extension)
+            result_path = os.path.join(result_directory, result_basename)
+            if os.path.exists(result_path):
+                # os.rename will fail overwriting on non-Unix.
+                os.remove(result_path)
+            os.rename(os.path.join(tmp_dist_dir, result_basename), result_path)
+
+        return result_basename
+
+    def build_wheel(
+        self,
+        wheel_directory: StrPath,
+        config_settings: _ConfigSettings = None,
+        metadata_directory: StrPath | None = None,
+    ):
+        def _build(cmd: list[str]):
+            with suppress_known_deprecation():
+                return self._build_with_temp_dir(
+                    cmd,
+                    '.whl',
+                    wheel_directory,
+                    config_settings,
+                    self._arbitrary_args(config_settings),
+                )
+
+        if metadata_directory is None:
+            return _build(['bdist_wheel'])
+
+        try:
+            return _build(['bdist_wheel', '--dist-info-dir', str(metadata_directory)])
+        except SystemExit as ex:  # pragma: nocover
+            # pypa/setuptools#4683
+            if "--dist-info-dir not recognized" not in str(ex):
+                raise
+            _IncompatibleBdistWheel.emit()
+            return _build(['bdist_wheel'])
+
+    def build_sdist(
+        self, sdist_directory: StrPath, config_settings: _ConfigSettings = None
+    ):
+        return self._build_with_temp_dir(
+            ['sdist', '--formats', 'gztar'], '.tar.gz', sdist_directory, config_settings
+        )
+
+    def _get_dist_info_dir(self, metadata_directory: StrPath | None) -> str | None:
+        if not metadata_directory:
+            return None
+        dist_info_candidates = list(Path(metadata_directory).glob("*.dist-info"))
+        assert len(dist_info_candidates) <= 1
+        return str(dist_info_candidates[0]) if dist_info_candidates else None
+
+    def build_editable(
+        self,
+        wheel_directory: StrPath,
+        config_settings: _ConfigSettings = None,
+        metadata_directory: StrPath | None = None,
+    ):
+        # XXX can or should we hide our editable_wheel command normally?
+        info_dir = self._get_dist_info_dir(metadata_directory)
+        opts = ["--dist-info-dir", info_dir] if info_dir else []
+        cmd = ["editable_wheel", *opts, *self._editable_args(config_settings)]
+        with suppress_known_deprecation():
+            return self._build_with_temp_dir(
+                cmd, ".whl", wheel_directory, config_settings
+            )
+
+    def get_requires_for_build_editable(self, config_settings: _ConfigSettings = None):
+        return self.get_requires_for_build_wheel(config_settings)
+
+    def prepare_metadata_for_build_editable(
+        self, metadata_directory: StrPath, config_settings: _ConfigSettings = None
+    ):
+        return self.prepare_metadata_for_build_wheel(
+            metadata_directory, config_settings
+        )
+
+
+class _BuildMetaLegacyBackend(_BuildMetaBackend):
+    """Compatibility backend for setuptools
+
+    This is a version of setuptools.build_meta that endeavors
+    to maintain backwards
+    compatibility with pre-PEP 517 modes of invocation. It
+    exists as a temporary
+    bridge between the old packaging mechanism and the new
+    packaging mechanism,
+    and will eventually be removed.
+    """
+
+    def run_setup(self, setup_script: str = 'setup.py'):
+        # In order to maintain compatibility with scripts assuming that
+        # the setup.py script is in a directory on the PYTHONPATH, inject
+        # '' into sys.path. (pypa/setuptools#1642)
+        sys_path = list(sys.path)  # Save the original path
+
+        script_dir = os.path.dirname(os.path.abspath(setup_script))
+        if script_dir not in sys.path:
+            sys.path.insert(0, script_dir)
+
+        # Some setup.py scripts (e.g. in pygame and numpy) use sys.argv[0] to
+        # get the directory of the source code. They expect it to refer to the
+        # setup.py script.
+        sys_argv_0 = sys.argv[0]
+        sys.argv[0] = setup_script
+
+        try:
+            super().run_setup(setup_script=setup_script)
+        finally:
+            # While PEP 517 frontends should be calling each hook in a fresh
+            # subprocess according to the standard (and thus it should not be
+            # strictly necessary to restore the old sys.path), we'll restore
+            # the original path so that the path manipulation does not persist
+            # within the hook after run_setup is called.
+            sys.path[:] = sys_path
+            sys.argv[0] = sys_argv_0
+
+
+class _IncompatibleBdistWheel(SetuptoolsDeprecationWarning):
+    _SUMMARY = "wheel.bdist_wheel is deprecated, please import it from setuptools"
+    _DETAILS = """
+    Ensure that any custom bdist_wheel implementation is a subclass of
+    setuptools.command.bdist_wheel.bdist_wheel.
+    """
+    _DUE_DATE = (2025, 10, 15)
+    # Initially introduced in 2024/10/15, but maybe too disruptive to be enforced?
+    _SEE_URL = "https://github.com/pypa/wheel/pull/631"
+
+
+# The primary backend
+_BACKEND = _BuildMetaBackend()
+
+get_requires_for_build_wheel = _BACKEND.get_requires_for_build_wheel
+get_requires_for_build_sdist = _BACKEND.get_requires_for_build_sdist
+prepare_metadata_for_build_wheel = _BACKEND.prepare_metadata_for_build_wheel
+build_wheel = _BACKEND.build_wheel
+build_sdist = _BACKEND.build_sdist
+get_requires_for_build_editable = _BACKEND.get_requires_for_build_editable
+prepare_metadata_for_build_editable = _BACKEND.prepare_metadata_for_build_editable
+build_editable = _BACKEND.build_editable
+
+
+# The legacy backend
+__legacy__ = _BuildMetaLegacyBackend()
diff --git a/setuptools/cli-32.exe b/setuptools/cli-32.exe
new file mode 100644
index 0000000000..65c3cd99cc
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diff --git a/setuptools/cli-64.exe b/setuptools/cli-64.exe
new file mode 100644
index 0000000000..3ea50eebfe
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diff --git a/setuptools/cli-arm64.exe b/setuptools/cli-arm64.exe
new file mode 100644
index 0000000000..da96455a07
Binary files /dev/null and b/setuptools/cli-arm64.exe differ
diff --git a/setuptools/cli.exe b/setuptools/cli.exe
old mode 100755
new mode 100644
index 3173b2b21d..65c3cd99cc
Binary files a/setuptools/cli.exe and b/setuptools/cli.exe differ
diff --git a/setuptools/command/__init__.py b/setuptools/command/__init__.py
index f898822bb1..50e6c2f54f 100644
--- a/setuptools/command/__init__.py
+++ b/setuptools/command/__init__.py
@@ -1,19 +1,21 @@
-__all__ = [
-    'alias', 'bdist_egg', 'bdist_rpm', 'build_ext', 'build_py', 'develop',
-    'easy_install', 'egg_info', 'install', 'install_lib', 'rotate', 'saveopts',
-    'sdist', 'setopt', 'test', 'upload', 'install_egg_info', 'install_scripts',
-    'register', 'bdist_wininst',
-]
+# mypy: disable_error_code=call-overload
+# pyright: reportCallIssue=false, reportArgumentType=false
+# Can't disable on the exact line because distutils doesn't exists on Python 3.12
+# and type-checkers aren't aware of distutils_hack,
+# causing distutils.command.bdist.bdist.format_commands to be Any.
 
 import sys
-if sys.version>='2.5':
-    # In Python 2.5 and above, distutils includes its own upload command
-    __all__.remove('upload')
 
 from distutils.command.bdist import bdist
 
 if 'egg' not in bdist.format_commands:
-    bdist.format_command['egg'] = ('bdist_egg', "Python .egg file")
-    bdist.format_commands.append('egg')
+    try:
+        # format_commands is a dict in vendored distutils
+        # It used to be a list in older (stdlib) distutils
+        # We support both for backwards compatibility
+        bdist.format_commands['egg'] = ('bdist_egg', "Python .egg file")
+    except TypeError:
+        bdist.format_command['egg'] = ('bdist_egg', "Python .egg file")
+        bdist.format_commands.append('egg')
 
 del bdist, sys
diff --git a/setuptools/command/_requirestxt.py b/setuptools/command/_requirestxt.py
new file mode 100644
index 0000000000..9029b12514
--- /dev/null
+++ b/setuptools/command/_requirestxt.py
@@ -0,0 +1,131 @@
+"""Helper code used to generate ``requires.txt`` files in the egg-info directory.
+
+The ``requires.txt`` file has an specific format:
+    - Environment markers need to be part of the section headers and
+      should not be part of the requirement spec itself.
+
+See https://setuptools.pypa.io/en/latest/deprecated/python_eggs.html#requires-txt
+"""
+
+from __future__ import annotations
+
+import io
+from collections import defaultdict
+from collections.abc import Mapping
+from itertools import filterfalse
+from typing import TypeVar
+
+from jaraco.text import yield_lines
+from packaging.requirements import Requirement
+
+from .. import _reqs
+from .._reqs import _StrOrIter
+
+# dict can work as an ordered set
+_T = TypeVar("_T")
+_Ordered = dict[_T, None]
+
+
+def _prepare(
+    install_requires: _StrOrIter, extras_require: Mapping[str, _StrOrIter]
+) -> tuple[list[str], dict[str, list[str]]]:
+    """Given values for ``install_requires`` and ``extras_require``
+    create modified versions in a way that can be written in ``requires.txt``
+    """
+    extras = _convert_extras_requirements(extras_require)
+    return _move_install_requirements_markers(install_requires, extras)
+
+
+def _convert_extras_requirements(
+    extras_require: Mapping[str, _StrOrIter],
+) -> defaultdict[str, _Ordered[Requirement]]:
+    """
+    Convert requirements in `extras_require` of the form
+    `"extra": ["barbazquux; {marker}"]` to
+    `"extra:{marker}": ["barbazquux"]`.
+    """
+    output = defaultdict[str, _Ordered[Requirement]](dict)
+    for section, v in extras_require.items():
+        # Do not strip empty sections.
+        output[section]
+        for r in _reqs.parse(v):
+            output[section + _suffix_for(r)].setdefault(r)
+
+    return output
+
+
+def _move_install_requirements_markers(
+    install_requires: _StrOrIter, extras_require: Mapping[str, _Ordered[Requirement]]
+) -> tuple[list[str], dict[str, list[str]]]:
+    """
+    The ``requires.txt`` file has an specific format:
+        - Environment markers need to be part of the section headers and
+          should not be part of the requirement spec itself.
+
+    Move requirements in ``install_requires`` that are using environment
+    markers ``extras_require``.
+    """
+
+    # divide the install_requires into two sets, simple ones still
+    # handled by install_requires and more complex ones handled by extras_require.
+
+    inst_reqs = list(_reqs.parse(install_requires))
+    simple_reqs = filter(_no_marker, inst_reqs)
+    complex_reqs = filterfalse(_no_marker, inst_reqs)
+    simple_install_requires = list(map(str, simple_reqs))
+
+    for r in complex_reqs:
+        extras_require[':' + str(r.marker)].setdefault(r)
+
+    expanded_extras = dict(
+        # list(dict.fromkeys(...))  ensures a list of unique strings
+        (k, list(dict.fromkeys(str(r) for r in map(_clean_req, v))))
+        for k, v in extras_require.items()
+    )
+
+    return simple_install_requires, expanded_extras
+
+
+def _suffix_for(req):
+    """Return the 'extras_require' suffix for a given requirement."""
+    return ':' + str(req.marker) if req.marker else ''
+
+
+def _clean_req(req):
+    """Given a Requirement, remove environment markers and return it"""
+    r = Requirement(str(req))  # create a copy before modifying
+    r.marker = None
+    return r
+
+
+def _no_marker(req):
+    return not req.marker
+
+
+def _write_requirements(stream, reqs):
+    lines = yield_lines(reqs or ())
+
+    def append_cr(line):
+        return line + '\n'
+
+    lines = map(append_cr, lines)
+    stream.writelines(lines)
+
+
+def write_requirements(cmd, basename, filename):
+    dist = cmd.distribution
+    data = io.StringIO()
+    install_requires, extras_require = _prepare(
+        dist.install_requires or (), dist.extras_require or {}
+    )
+    _write_requirements(data, install_requires)
+    for extra in sorted(extras_require):
+        data.write('\n[{extra}]\n'.format(**vars()))
+        _write_requirements(data, extras_require[extra])
+    cmd.write_or_delete_file("requirements", filename, data.getvalue())
+
+
+def write_setup_requirements(cmd, basename, filename):
+    data = io.StringIO()
+    _write_requirements(data, cmd.distribution.setup_requires)
+    cmd.write_or_delete_file("setup-requirements", filename, data.getvalue())
diff --git a/setuptools/command/alias.py b/setuptools/command/alias.py
old mode 100755
new mode 100644
index f5368b29e9..b8d74af71d
--- a/setuptools/command/alias.py
+++ b/setuptools/command/alias.py
@@ -1,27 +1,26 @@
-import distutils, os
-from setuptools import Command
-from distutils.util import convert_path
-from distutils import log
-from distutils.errors import *
-from setuptools.command.setopt import edit_config, option_base, config_file
+from setuptools.command.setopt import config_file, edit_config, option_base
+
+from distutils.errors import DistutilsOptionError
+
 
 def shquote(arg):
     """Quote an argument for later parsing by shlex.split()"""
     for c in '"', "'", "\\", "#":
-        if c in arg: return repr(arg)
-    if arg.split()<>[arg]:
+        if c in arg:
+            return repr(arg)
+    if arg.split() != [arg]:
         return repr(arg)
-    return arg        
+    return arg
 
 
 class alias(option_base):
     """Define a shortcut that invokes one or more commands"""
-    
+
     description = "define a shortcut to invoke one or more commands"
     command_consumes_arguments = True
 
     user_options = [
-        ('remove',   'r', 'remove (unset) the alias'), 
+        ('remove', 'r', 'remove (unset) the alias'),
     ] + option_base.user_options
 
     boolean_options = option_base.boolean_options + ['remove']
@@ -31,39 +30,38 @@ def initialize_options(self):
         self.args = None
         self.remove = None
 
-    def finalize_options(self):
+    def finalize_options(self) -> None:
         option_base.finalize_options(self)
-        if self.remove and len(self.args)<>1:
+        if self.remove and len(self.args) != 1:
             raise DistutilsOptionError(
-                "Must specify exactly one argument (the alias name) when "
-                "using --remove"
+                "Must specify exactly one argument (the alias name) when using --remove"
             )
 
-    def run(self):
+    def run(self) -> None:
         aliases = self.distribution.get_option_dict('aliases')
 
         if not self.args:
-            print "Command Aliases"
-            print "---------------"
+            print("Command Aliases")
+            print("---------------")
             for alias in aliases:
-                print "setup.py alias", format_alias(alias, aliases)
+                print("setup.py alias", format_alias(alias, aliases))
             return
 
-        elif len(self.args)==1:
-            alias, = self.args
+        elif len(self.args) == 1:
+            (alias,) = self.args
             if self.remove:
                 command = None
             elif alias in aliases:
-                print "setup.py alias", format_alias(alias, aliases)
+                print("setup.py alias", format_alias(alias, aliases))
                 return
             else:
-                print "No alias definition found for %r" % alias
+                print(f"No alias definition found for {alias!r}")
                 return
         else:
             alias = self.args[0]
-            command = ' '.join(map(shquote,self.args[1:]))
+            command = ' '.join(map(shquote, self.args[1:]))
 
-        edit_config(self.filename, {'aliases': {alias:command}}, self.dry_run)
+        edit_config(self.filename, {'aliases': {alias: command}}, self.dry_run)
 
 
 def format_alias(name, aliases):
@@ -75,8 +73,5 @@ def format_alias(name, aliases):
     elif source == config_file('local'):
         source = ''
     else:
-        source = '--filename=%r' % source
-    return source+name+' '+command
-            
-
-
+        source = f'--filename={source!r}'
+    return source + name + ' ' + command
diff --git a/setuptools/command/bdist_egg.py b/setuptools/command/bdist_egg.py
index 9e852a3f15..7f66c3ba6a 100644
--- a/setuptools/command/bdist_egg.py
+++ b/setuptools/command/bdist_egg.py
@@ -2,18 +2,36 @@
 
 Build .egg distributions"""
 
-# This module should be kept compatible with Python 2.3
-import sys, os, marshal
-from setuptools import Command
-from distutils.dir_util import remove_tree, mkpath
-from distutils.sysconfig import get_python_version, get_python_lib
-from distutils import log
-from distutils.errors import DistutilsSetupError
-from pkg_resources import get_build_platform, Distribution, ensure_directory
-from pkg_resources import EntryPoint
+from __future__ import annotations
+
+import marshal
+import os
+import re
+import sys
+import textwrap
+from sysconfig import get_path, get_python_version
 from types import CodeType
+from typing import TYPE_CHECKING, Literal
+
+from setuptools import Command
 from setuptools.extension import Library
 
+from .._path import StrPathT, ensure_directory
+
+from distutils import log
+from distutils.dir_util import mkpath, remove_tree
+
+if TYPE_CHECKING:
+    from typing_extensions import TypeAlias
+
+# Same as zipfile._ZipFileMode from typeshed
+_ZipFileMode: TypeAlias = Literal["r", "w", "x", "a"]
+
+
+def _get_purelib():
+    return get_path("purelib")
+
+
 def strip_module(filename):
     if '.' in filename:
         filename = os.path.splitext(filename)[0]
@@ -21,76 +39,69 @@ def strip_module(filename):
         filename = filename[:-6]
     return filename
 
-def write_stub(resource, pyfile):
-    f = open(pyfile,'w')
-    f.write('\n'.join([
-        "def __bootstrap__():",
-        "   global __bootstrap__, __loader__, __file__",
-        "   import sys, pkg_resources, imp",
-        "   __file__ = pkg_resources.resource_filename(__name__,%r)"
-            % resource,
-        "   __loader__ = None; del __bootstrap__, __loader__",
-        "   imp.load_dynamic(__name__,__file__)",
-        "__bootstrap__()",
-        "" # terminal \n
-    ]))
-    f.close()
 
-# stub __init__.py for packages distributed without one
-NS_PKG_STUB = '__import__("pkg_resources").declare_namespace(__name__)'
+def sorted_walk(dir):
+    """Do os.walk in a reproducible way,
+    independent of indeterministic filesystem readdir order
+    """
+    for base, dirs, files in os.walk(dir):
+        dirs.sort()
+        files.sort()
+        yield base, dirs, files
+
+
+def write_stub(resource, pyfile) -> None:
+    _stub_template = textwrap.dedent(
+        """
+        def __bootstrap__():
+            global __bootstrap__, __loader__, __file__
+            import sys, pkg_resources, importlib.util
+            __file__ = pkg_resources.resource_filename(__name__, %r)
+            __loader__ = None; del __bootstrap__, __loader__
+            spec = importlib.util.spec_from_file_location(__name__,__file__)
+            mod = importlib.util.module_from_spec(spec)
+            spec.loader.exec_module(mod)
+        __bootstrap__()
+        """
+    ).lstrip()
+    with open(pyfile, 'w', encoding="utf-8") as f:
+        f.write(_stub_template % resource)
 
-class bdist_egg(Command):
 
-    description = "create an \"egg\" distribution"
+class bdist_egg(Command):
+    description = 'create an "egg" distribution'
 
     user_options = [
-        ('bdist-dir=', 'b',
-            "temporary directory for creating the distribution"),
-        ('plat-name=', 'p',
-                     "platform name to embed in generated filenames "
-                     "(default: %s)" % get_build_platform()),
-        ('exclude-source-files', None,
-                     "remove all .py files from the generated egg"),
-        ('keep-temp', 'k',
-                     "keep the pseudo-installation tree around after " +
-                     "creating the distribution archive"),
-        ('dist-dir=', 'd',
-                     "directory to put final built distributions in"),
-        ('skip-build', None,
-                     "skip rebuilding everything (for testing/debugging)"),
-    ]
-
-    boolean_options = [
-        'keep-temp', 'skip-build', 'exclude-source-files'
+        ('bdist-dir=', 'b', "temporary directory for creating the distribution"),
+        (
+            'plat-name=',
+            'p',
+            "platform name to embed in generated filenames "
+            "(by default uses `pkg_resources.get_build_platform()`)",
+        ),
+        ('exclude-source-files', None, "remove all .py files from the generated egg"),
+        (
+            'keep-temp',
+            'k',
+            "keep the pseudo-installation tree around after "
+            "creating the distribution archive",
+        ),
+        ('dist-dir=', 'd', "directory to put final built distributions in"),
+        ('skip-build', None, "skip rebuilding everything (for testing/debugging)"),
     ]
 
+    boolean_options = ['keep-temp', 'skip-build', 'exclude-source-files']
 
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-    def initialize_options (self):
+    def initialize_options(self):
         self.bdist_dir = None
         self.plat_name = None
-        self.keep_temp = 0
+        self.keep_temp = False
         self.dist_dir = None
-        self.skip_build = 0
+        self.skip_build = False
         self.egg_output = None
         self.exclude_source_files = None
 
-
-    def finalize_options(self):
+    def finalize_options(self) -> None:
         ei_cmd = self.ei_cmd = self.get_finalized_command("egg_info")
         self.egg_info = ei_cmd.egg_info
 
@@ -99,130 +110,117 @@ def finalize_options(self):
             self.bdist_dir = os.path.join(bdist_base, 'egg')
 
         if self.plat_name is None:
+            from pkg_resources import get_build_platform
+
             self.plat_name = get_build_platform()
 
-        self.set_undefined_options('bdist',('dist_dir', 'dist_dir'))
+        self.set_undefined_options('bdist', ('dist_dir', 'dist_dir'))
 
         if self.egg_output is None:
-
             # Compute filename of the output egg
-            basename = Distribution(
-                None, None, ei_cmd.egg_name, ei_cmd.egg_version,
-                get_python_version(),
-                self.distribution.has_ext_modules() and self.plat_name
-            ).egg_name()
-
-            self.egg_output = os.path.join(self.dist_dir, basename+'.egg')
-
-
-
-
-
-
+            basename = ei_cmd._get_egg_basename(
+                py_version=get_python_version(),
+                platform=self.distribution.has_ext_modules() and self.plat_name,
+            )
 
+            self.egg_output = os.path.join(self.dist_dir, basename + '.egg')
 
-    def do_install_data(self):
+    def do_install_data(self) -> None:
         # Hack for packages that install data to install's --install-lib
         self.get_finalized_command('install').install_lib = self.bdist_dir
 
-        site_packages = os.path.normcase(os.path.realpath(get_python_lib()))
-        old, self.distribution.data_files = self.distribution.data_files,[]
+        site_packages = os.path.normcase(os.path.realpath(_get_purelib()))
+        old, self.distribution.data_files = self.distribution.data_files, []
 
         for item in old:
-            if isinstance(item,tuple) and len(item)==2:
+            if isinstance(item, tuple) and len(item) == 2:
                 if os.path.isabs(item[0]):
                     realpath = os.path.realpath(item[0])
                     normalized = os.path.normcase(realpath)
-                    if normalized==site_packages or normalized.startswith(
-                        site_packages+os.sep
+                    if normalized == site_packages or normalized.startswith(
+                        site_packages + os.sep
                     ):
-                        item = realpath[len(site_packages)+1:], item[1]
-                    # XXX else: raise ???
+                        item = realpath[len(site_packages) + 1 :], item[1]
+                        # XXX else: raise ???
             self.distribution.data_files.append(item)
 
         try:
-            log.info("installing package data to %s" % self.bdist_dir)
-            self.call_command('install_data', force=0, root=None)
+            log.info("installing package data to %s", self.bdist_dir)
+            self.call_command('install_data', force=False, root=None)
         finally:
             self.distribution.data_files = old
 
-
     def get_outputs(self):
         return [self.egg_output]
 
-
-    def call_command(self,cmdname,**kw):
+    def call_command(self, cmdname, **kw):
         """Invoke reinitialized command `cmdname` with keyword args"""
         for dirname in INSTALL_DIRECTORY_ATTRS:
-            kw.setdefault(dirname,self.bdist_dir)
-        kw.setdefault('skip_build',self.skip_build)
+            kw.setdefault(dirname, self.bdist_dir)
+        kw.setdefault('skip_build', self.skip_build)
         kw.setdefault('dry_run', self.dry_run)
         cmd = self.reinitialize_command(cmdname, **kw)
         self.run_command(cmdname)
         return cmd
 
-
-    def run(self):
+    def run(self):  # noqa: C901  # is too complex (14)  # FIXME
         # Generate metadata first
         self.run_command("egg_info")
-
         # We run install_lib before install_data, because some data hacks
         # pull their data path from the install_lib command.
-        log.info("installing library code to %s" % self.bdist_dir)
+        log.info("installing library code to %s", self.bdist_dir)
         instcmd = self.get_finalized_command('install')
-        old_root = instcmd.root; instcmd.root = None
-        cmd = self.call_command('install_lib', warn_dir=0)
+        old_root = instcmd.root
+        instcmd.root = None
+        if self.distribution.has_c_libraries() and not self.skip_build:
+            self.run_command('build_clib')
+        cmd = self.call_command('install_lib', warn_dir=False)
         instcmd.root = old_root
 
         all_outputs, ext_outputs = self.get_ext_outputs()
         self.stubs = []
         to_compile = []
-        for (p,ext_name) in enumerate(ext_outputs):
-            filename,ext = os.path.splitext(ext_name)
-            pyfile = os.path.join(self.bdist_dir, strip_module(filename)+'.py')
+        for p, ext_name in enumerate(ext_outputs):
+            filename, _ext = os.path.splitext(ext_name)
+            pyfile = os.path.join(self.bdist_dir, strip_module(filename) + '.py')
             self.stubs.append(pyfile)
-            log.info("creating stub loader for %s" % ext_name)
+            log.info("creating stub loader for %s", ext_name)
             if not self.dry_run:
                 write_stub(os.path.basename(ext_name), pyfile)
             to_compile.append(pyfile)
-            ext_outputs[p] = ext_name.replace(os.sep,'/')
+            ext_outputs[p] = ext_name.replace(os.sep, '/')
 
-        to_compile.extend(self.make_init_files())
         if to_compile:
             cmd.byte_compile(to_compile)
-
         if self.distribution.data_files:
             self.do_install_data()
 
         # Make the EGG-INFO directory
         archive_root = self.bdist_dir
-        egg_info = os.path.join(archive_root,'EGG-INFO')
+        egg_info = os.path.join(archive_root, 'EGG-INFO')
         self.mkpath(egg_info)
         if self.distribution.scripts:
             script_dir = os.path.join(egg_info, 'scripts')
-            log.info("installing scripts to %s" % script_dir)
-            self.call_command('install_scripts',install_dir=script_dir,no_ep=1)
+            log.info("installing scripts to %s", script_dir)
+            self.call_command('install_scripts', install_dir=script_dir, no_ep=True)
 
         self.copy_metadata_to(egg_info)
         native_libs = os.path.join(egg_info, "native_libs.txt")
         if all_outputs:
-            log.info("writing %s" % native_libs)
+            log.info("writing %s", native_libs)
             if not self.dry_run:
                 ensure_directory(native_libs)
-                libs_file = open(native_libs, 'wt')
-                libs_file.write('\n'.join(all_outputs))
-                libs_file.write('\n')
-                libs_file.close()
+                with open(native_libs, 'wt', encoding="utf-8") as libs_file:
+                    libs_file.write('\n'.join(all_outputs))
+                    libs_file.write('\n')
         elif os.path.isfile(native_libs):
-            log.info("removing %s" % native_libs)
+            log.info("removing %s", native_libs)
             if not self.dry_run:
                 os.unlink(native_libs)
 
-        write_safety_flag(
-            os.path.join(archive_root,'EGG-INFO'), self.zip_safe()
-        )
+        write_safety_flag(os.path.join(archive_root, 'EGG-INFO'), self.zip_safe())
 
-        if os.path.exists(os.path.join(self.egg_info,'depends.txt')):
+        if os.path.exists(os.path.join(self.egg_info, 'depends.txt')):
             log.warn(
                 "WARNING: 'depends.txt' will not be used by setuptools 0.6!\n"
                 "Use the install_requires/extras_require setup() args instead."
@@ -232,105 +230,65 @@ def run(self):
             self.zap_pyfiles()
 
         # Make the archive
-        make_zipfile(self.egg_output, archive_root, verbose=self.verbose,
-                          dry_run=self.dry_run, mode=self.gen_header())
+        make_zipfile(
+            self.egg_output,
+            archive_root,
+            verbose=self.verbose,
+            dry_run=self.dry_run,
+            mode=self.gen_header(),
+        )
         if not self.keep_temp:
             remove_tree(self.bdist_dir, dry_run=self.dry_run)
 
         # Add to 'Distribution.dist_files' so that the "upload" command works
-        getattr(self.distribution,'dist_files',[]).append(
-            ('bdist_egg',get_python_version(),self.egg_output))
-
-
-
+        getattr(self.distribution, 'dist_files', []).append((
+            'bdist_egg',
+            get_python_version(),
+            self.egg_output,
+        ))
 
     def zap_pyfiles(self):
         log.info("Removing .py files from temporary directory")
-        for base,dirs,files in walk_egg(self.bdist_dir):
+        for base, dirs, files in walk_egg(self.bdist_dir):
             for name in files:
+                path = os.path.join(base, name)
+
                 if name.endswith('.py'):
-                    path = os.path.join(base,name)
                     log.debug("Deleting %s", path)
                     os.unlink(path)
 
+                if base.endswith('__pycache__'):
+                    path_old = path
+
+                    pattern = r'(?P.+)\.(?P[^.]+)\.pyc'
+                    m = re.match(pattern, name)
+                    path_new = os.path.join(base, os.pardir, m.group('name') + '.pyc')
+                    log.info(f"Renaming file from [{path_old}] to [{path_new}]")
+                    try:
+                        os.remove(path_new)
+                    except OSError:
+                        pass
+                    os.rename(path_old, path_new)
+
     def zip_safe(self):
-        safe = getattr(self.distribution,'zip_safe',None)
+        safe = getattr(self.distribution, 'zip_safe', None)
         if safe is not None:
             return safe
         log.warn("zip_safe flag not set; analyzing archive contents...")
         return analyze_egg(self.bdist_dir, self.stubs)
 
-    def make_init_files(self):
-        """Create missing package __init__ files"""
-        init_files = []
-        for base,dirs,files in walk_egg(self.bdist_dir):
-            if base==self.bdist_dir:
-                # don't put an __init__ in the root
-                continue
-            for name in files:
-                if name.endswith('.py'):
-                    if '__init__.py' not in files:
-                        pkg = base[len(self.bdist_dir)+1:].replace(os.sep,'.')
-                        if self.distribution.has_contents_for(pkg):
-                            log.warn("Creating missing __init__.py for %s",pkg)
-                            filename = os.path.join(base,'__init__.py')
-                            if not self.dry_run:
-                                f = open(filename,'w'); f.write(NS_PKG_STUB)
-                                f.close()
-                            init_files.append(filename)
-                    break
-            else:
-                # not a package, don't traverse to subdirectories
-                dirs[:] = []
-
-        return init_files
-
-    def gen_header(self):
-        epm = EntryPoint.parse_map(self.distribution.entry_points or '')
-        ep = epm.get('setuptools.installation',{}).get('eggsecutable')
-        if ep is None:
-            return 'w'  # not an eggsecutable, do it the usual way.
-
-        if not ep.attrs or ep.extras:
-            raise DistutilsSetupError(
-                "eggsecutable entry point (%r) cannot have 'extras' "
-                "or refer to a module" % (ep,)
-            )
+    def gen_header(self) -> Literal["w"]:
+        return 'w'
 
-        pyver = sys.version[:3]
-        pkg = ep.module_name
-        full = '.'.join(ep.attrs)
-        base = ep.attrs[0]
-        basename = os.path.basename(self.egg_output)
-
-        header = (
-            "#!/bin/sh\n"
-            'if [ `basename $0` = "%(basename)s" ]\n'
-            'then exec python%(pyver)s -c "'
-            "import sys, os; sys.path.insert(0, os.path.abspath('$0')); "
-            "from %(pkg)s import %(base)s; sys.exit(%(full)s())"
-            '" "$@"\n'
-            'else\n'
-            '  echo $0 is not the correct name for this egg file.\n'
-            '  echo Please rename it back to %(basename)s and try again.\n'
-            '  exec false\n'
-            'fi\n'
-
-        ) % locals()
-
-        if not self.dry_run:
-            mkpath(os.path.dirname(self.egg_output), dry_run=self.dry_run)
-            f = open(self.egg_output, 'w')
-            f.write(header)
-            f.close()
-        return 'a'
-
-
-    def copy_metadata_to(self, target_dir):
-        prefix = os.path.join(self.egg_info,'')
+    def copy_metadata_to(self, target_dir) -> None:
+        "Copy metadata (egg info) to the target_dir"
+        # normalize the path (so that a forward-slash in egg_info will
+        # match using startswith below)
+        norm_egg_info = os.path.normpath(self.egg_info)
+        prefix = os.path.join(norm_egg_info, '')
         for path in self.ei_cmd.filelist.files:
             if path.startswith(prefix):
-                target = os.path.join(target_dir, path[len(prefix):])
+                target = os.path.join(target_dir, path[len(prefix) :])
                 ensure_directory(target)
                 self.copy_file(path, target)
 
@@ -340,49 +298,50 @@ def get_ext_outputs(self):
         all_outputs = []
         ext_outputs = []
 
-        paths = {self.bdist_dir:''}
-        for base, dirs, files in os.walk(self.bdist_dir):
-            for filename in files:
-                if os.path.splitext(filename)[1].lower() in NATIVE_EXTENSIONS:
-                    all_outputs.append(paths[base]+filename)
+        paths = {self.bdist_dir: ''}
+        for base, dirs, files in sorted_walk(self.bdist_dir):
+            all_outputs.extend(
+                paths[base] + filename
+                for filename in files
+                if os.path.splitext(filename)[1].lower() in NATIVE_EXTENSIONS
+            )
             for filename in dirs:
-                paths[os.path.join(base,filename)] = paths[base]+filename+'/'
+                paths[os.path.join(base, filename)] = paths[base] + filename + '/'
 
         if self.distribution.has_ext_modules():
             build_cmd = self.get_finalized_command('build_ext')
             for ext in build_cmd.extensions:
-                if isinstance(ext,Library):
+                if isinstance(ext, Library):
                     continue
                 fullname = build_cmd.get_ext_fullname(ext.name)
                 filename = build_cmd.get_ext_filename(fullname)
                 if not os.path.basename(filename).startswith('dl-'):
-                    if os.path.exists(os.path.join(self.bdist_dir,filename)):
+                    if os.path.exists(os.path.join(self.bdist_dir, filename)):
                         ext_outputs.append(filename)
 
         return all_outputs, ext_outputs
 
 
-NATIVE_EXTENSIONS = dict.fromkeys('.dll .so .dylib .pyd'.split())
-
-
+NATIVE_EXTENSIONS: dict[str, None] = dict.fromkeys('.dll .so .dylib .pyd'.split())
 
 
 def walk_egg(egg_dir):
     """Walk an unpacked egg's contents, skipping the metadata directory"""
-    walker = os.walk(egg_dir)
-    base,dirs,files = walker.next()
+    walker = sorted_walk(egg_dir)
+    base, dirs, files = next(walker)
     if 'EGG-INFO' in dirs:
         dirs.remove('EGG-INFO')
-    yield base,dirs,files
-    for bdf in walker:
-        yield bdf
+    yield base, dirs, files
+    yield from walker
+
 
 def analyze_egg(egg_dir, stubs):
     # check for existing flag in EGG-INFO
-    for flag,fn in safety_flags.items():
-        if os.path.exists(os.path.join(egg_dir,'EGG-INFO',fn)):
+    for flag, fn in safety_flags.items():
+        if os.path.exists(os.path.join(egg_dir, 'EGG-INFO', fn)):
             return flag
-    if not can_scan(): return False
+    if not can_scan():
+        return False
     safe = True
     for base, dirs, files in walk_egg(egg_dir):
         for name in files:
@@ -393,31 +352,38 @@ def analyze_egg(egg_dir, stubs):
                 safe = scan_module(egg_dir, base, name, stubs) and safe
     return safe
 
-def write_safety_flag(egg_dir, safe):
+
+def write_safety_flag(egg_dir, safe) -> None:
     # Write or remove zip safety flag file(s)
-    for flag,fn in safety_flags.items():
+    for flag, fn in safety_flags.items():
         fn = os.path.join(egg_dir, fn)
         if os.path.exists(fn):
-            if safe is None or bool(safe)<>flag:
+            if safe is None or bool(safe) != flag:
                 os.unlink(fn)
-        elif safe is not None and bool(safe)==flag:
-            f=open(fn,'wb'); f.write('\n'); f.close()
+        elif safe is not None and bool(safe) == flag:
+            with open(fn, 'wt', encoding="utf-8") as f:
+                f.write('\n')
+
 
 safety_flags = {
     True: 'zip-safe',
     False: 'not-zip-safe',
 }
 
+
 def scan_module(egg_dir, base, name, stubs):
     """Check whether module possibly uses unsafe-for-zipfile stuff"""
 
-    filename = os.path.join(base,name)
+    filename = os.path.join(base, name)
     if filename[:-1] in stubs:
-        return True     # Extension module
-    pkg = base[len(egg_dir)+1:].replace(os.sep,'.')
-    module = pkg+(pkg and '.' or '')+os.path.splitext(name)[0]
-    f = open(filename,'rb'); f.read(8)   # skip magic & date
-    code = marshal.load(f);  f.close()
+        return True  # Extension module
+    pkg = base[len(egg_dir) + 1 :].replace(os.sep, '.')
+    module = pkg + (pkg and '.' or '') + os.path.splitext(name)[0]
+    skip = 16  # skip magic & reserved? & date & file size
+    f = open(filename, 'rb')
+    f.read(skip)
+    code = marshal.load(f)
+    f.close()
     safe = True
     symbols = dict.fromkeys(iter_symbols(code))
     for bad in ['__file__', '__path__']:
@@ -426,80 +392,61 @@ def scan_module(egg_dir, base, name, stubs):
             safe = False
     if 'inspect' in symbols:
         for bad in [
-            'getsource', 'getabsfile', 'getsourcefile', 'getfile'
-            'getsourcelines', 'findsource', 'getcomments', 'getframeinfo',
-            'getinnerframes', 'getouterframes', 'stack', 'trace'
+            'getsource',
+            'getabsfile',
+            'getfile',
+            'getsourcefile',
+            'getsourcelines',
+            'findsource',
+            'getcomments',
+            'getframeinfo',
+            'getinnerframes',
+            'getouterframes',
+            'stack',
+            'trace',
         ]:
             if bad in symbols:
                 log.warn("%s: module MAY be using inspect.%s", module, bad)
                 safe = False
-    if '__name__' in symbols and '__main__' in symbols and '.' not in module:
-        if sys.version[:3]=="2.4":  # -m works w/zipfiles in 2.5
-            log.warn("%s: top-level module may be 'python -m' script", module)
-            safe = False
     return safe
 
+
 def iter_symbols(code):
     """Yield names and strings used by `code` and its nested code objects"""
-    for name in code.co_names: yield name
+    yield from code.co_names
     for const in code.co_consts:
-        if isinstance(const,basestring):
+        if isinstance(const, str):
             yield const
-        elif isinstance(const,CodeType):
-            for name in iter_symbols(const):
-                yield name
+        elif isinstance(const, CodeType):
+            yield from iter_symbols(const)
+
 
-def can_scan():
+def can_scan() -> bool:
     if not sys.platform.startswith('java') and sys.platform != 'cli':
         # CPython, PyPy, etc.
         return True
     log.warn("Unable to analyze compiled code on this platform.")
-    log.warn("Please ask the author to include a 'zip_safe'"
-             " setting (either True or False) in the package's setup.py")
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+    log.warn(
+        "Please ask the author to include a 'zip_safe'"
+        " setting (either True or False) in the package's setup.py"
+    )
+    return False
 
 
 # Attribute names of options for commands that might need to be convinced to
 # install to the egg build directory
 
-INSTALL_DIRECTORY_ATTRS = [
-    'install_lib', 'install_dir', 'install_data', 'install_base'
-]
+INSTALL_DIRECTORY_ATTRS = ['install_lib', 'install_dir', 'install_data', 'install_base']
 
-def make_zipfile(zip_filename, base_dir, verbose=0, dry_run=0, compress=None,
-    mode='w'
-):
+
+def make_zipfile(
+    zip_filename: StrPathT,
+    base_dir,
+    verbose: bool = False,
+    dry_run: bool = False,
+    compress=True,
+    mode: _ZipFileMode = 'w',
+) -> StrPathT:
     """Create a zip file from all the files under 'base_dir'.  The output
     zip file will be named 'base_dir' + ".zip".  Uses either the "zipfile"
     Python module (if available) or the InfoZIP "zip" utility (if installed
@@ -507,27 +454,26 @@ def make_zipfile(zip_filename, base_dir, verbose=0, dry_run=0, compress=None,
     raises DistutilsExecError.  Returns the name of the output zip file.
     """
     import zipfile
-    mkpath(os.path.dirname(zip_filename), dry_run=dry_run)
+
+    mkpath(os.path.dirname(zip_filename), dry_run=dry_run)  # type: ignore[arg-type] # python/mypy#18075
     log.info("creating '%s' and adding '%s' to it", zip_filename, base_dir)
 
     def visit(z, dirname, names):
         for name in names:
             path = os.path.normpath(os.path.join(dirname, name))
             if os.path.isfile(path):
-                p = path[len(base_dir)+1:]
+                p = path[len(base_dir) + 1 :]
                 if not dry_run:
                     z.write(path, p)
-                log.debug("adding '%s'" % p)
-
-    if compress is None:
-        compress = (sys.version>="2.4") # avoid 2.3 zipimport bug when 64 bits
+                log.debug("adding '%s'", p)
 
-    compression = [zipfile.ZIP_STORED, zipfile.ZIP_DEFLATED][bool(compress)]
+    compression = zipfile.ZIP_DEFLATED if compress else zipfile.ZIP_STORED
     if not dry_run:
         z = zipfile.ZipFile(zip_filename, mode, compression=compression)
-        os.path.walk(base_dir, visit, z)
+        for dirname, dirs, files in sorted_walk(base_dir):
+            visit(z, dirname, files)
         z.close()
     else:
-        os.path.walk(base_dir, visit, None)
+        for dirname, dirs, files in sorted_walk(base_dir):
+            visit(None, dirname, files)
     return zip_filename
-#
diff --git a/setuptools/command/bdist_rpm.py b/setuptools/command/bdist_rpm.py
old mode 100755
new mode 100644
index 8c48da3559..6dbb27002a
--- a/setuptools/command/bdist_rpm.py
+++ b/setuptools/command/bdist_rpm.py
@@ -1,82 +1,42 @@
-# This is just a kludge so that bdist_rpm doesn't guess wrong about the
-# distribution name and version, if the egg_info command is going to alter
-# them, another kludge to allow you to build old-style non-egg RPMs, and
-# finally, a kludge to track .rpm files for uploading when run on Python <2.5.
-
-from distutils.command.bdist_rpm import bdist_rpm as _bdist_rpm
-import sys, os
-
-class bdist_rpm(_bdist_rpm):
-
-    def initialize_options(self):
-        _bdist_rpm.initialize_options(self)
-        self.no_egg = None
-
-    if sys.version<"2.5":
-        # Track for uploading any .rpm file(s) moved to self.dist_dir
-        def move_file(self, src, dst, level=1):
-            _bdist_rpm.move_file(self, src, dst, level)
-            if dst==self.dist_dir and src.endswith('.rpm'):
-                getattr(self.distribution,'dist_files',[]).append(
-                    ('bdist_rpm',
-                    src.endswith('.src.rpm') and 'any' or sys.version[:3],
-                     os.path.join(dst, os.path.basename(src)))
-                )
-
-    def run(self):
-        self.run_command('egg_info')    # ensure distro name is up-to-date
-        _bdist_rpm.run(self)
-
-
-
-
+from ..dist import Distribution
+from ..warnings import SetuptoolsDeprecationWarning
 
+import distutils.command.bdist_rpm as orig
 
 
+class bdist_rpm(orig.bdist_rpm):
+    """
+    Override the default bdist_rpm behavior to do the following:
 
+    1. Run egg_info to ensure the name and version are properly calculated.
+    2. Always run 'install' using --single-version-externally-managed to
+       disable eggs in RPM distributions.
+    """
 
+    distribution: Distribution  # override distutils.dist.Distribution with setuptools.dist.Distribution
 
+    def run(self) -> None:
+        SetuptoolsDeprecationWarning.emit(
+            "Deprecated command",
+            """
+            bdist_rpm is deprecated and will be removed in a future version.
+            Use bdist_wheel (wheel packages) instead.
+            """,
+            see_url="https://github.com/pypa/setuptools/issues/1988",
+            due_date=(2023, 10, 30),  # Deprecation introduced in 22 Oct 2021.
+        )
 
+        # ensure distro name is up-to-date
+        self.run_command('egg_info')
 
+        orig.bdist_rpm.run(self)
 
     def _make_spec_file(self):
-        version = self.distribution.get_version()
-        rpmversion = version.replace('-','_')
-        spec = _bdist_rpm._make_spec_file(self)
-        line23 = '%define version '+version
-        line24 = '%define version '+rpmversion
-        spec  = [
+        spec = orig.bdist_rpm._make_spec_file(self)
+        return [
             line.replace(
-                "Source0: %{name}-%{version}.tar",
-                "Source0: %{name}-%{unmangled_version}.tar"
-            ).replace(
                 "setup.py install ",
-                "setup.py install --single-version-externally-managed "
-            ).replace(
-                "%setup",
-                "%setup -n %{name}-%{unmangled_version}"
-            ).replace(line23,line24)
+                "setup.py install --single-version-externally-managed ",
+            ).replace("%setup", "%setup -n %{name}-%{unmangled_version}")
             for line in spec
         ]
-        spec.insert(spec.index(line24)+1, "%define unmangled_version "+version)
-        return spec
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
diff --git a/setuptools/command/bdist_wheel.py b/setuptools/command/bdist_wheel.py
new file mode 100644
index 0000000000..1e3f637bcc
--- /dev/null
+++ b/setuptools/command/bdist_wheel.py
@@ -0,0 +1,604 @@
+"""
+Create a wheel (.whl) distribution.
+
+A wheel is a built archive format.
+"""
+
+from __future__ import annotations
+
+import os
+import re
+import shutil
+import struct
+import sys
+import sysconfig
+import warnings
+from collections.abc import Iterable, Sequence
+from email.generator import BytesGenerator
+from glob import iglob
+from typing import Literal, cast
+from zipfile import ZIP_DEFLATED, ZIP_STORED
+
+from packaging import tags, version as _packaging_version
+from wheel.wheelfile import WheelFile
+
+from .. import Command, __version__, _shutil
+from .._core_metadata import _safe_license_file
+from .._normalization import safer_name
+from ..warnings import SetuptoolsDeprecationWarning
+from .egg_info import egg_info as egg_info_cls
+
+from distutils import log
+
+
+def safe_version(version: str) -> str:
+    """
+    Convert an arbitrary string to a standard version string
+    """
+    try:
+        # normalize the version
+        return str(_packaging_version.Version(version))
+    except _packaging_version.InvalidVersion:
+        version = version.replace(" ", ".")
+        return re.sub("[^A-Za-z0-9.]+", "-", version)
+
+
+setuptools_major_version = int(__version__.split(".")[0])
+
+PY_LIMITED_API_PATTERN = r"cp3\d"
+
+
+def _is_32bit_interpreter() -> bool:
+    return struct.calcsize("P") == 4
+
+
+def python_tag() -> str:
+    return f"py{sys.version_info.major}"
+
+
+def get_platform(archive_root: str | None) -> str:
+    """Return our platform name 'win32', 'linux_x86_64'"""
+    result = sysconfig.get_platform()
+    if result.startswith("macosx") and archive_root is not None:  # pragma: no cover
+        from wheel.macosx_libfile import calculate_macosx_platform_tag
+
+        result = calculate_macosx_platform_tag(archive_root, result)
+    elif _is_32bit_interpreter():
+        if result == "linux-x86_64":
+            # pip pull request #3497
+            result = "linux-i686"
+        elif result == "linux-aarch64":
+            # packaging pull request #234
+            # TODO armv8l, packaging pull request #690 => this did not land
+            # in pip/packaging yet
+            result = "linux-armv7l"
+
+    return result.replace("-", "_")
+
+
+def get_flag(
+    var: str, fallback: bool, expected: bool = True, warn: bool = True
+) -> bool:
+    """Use a fallback value for determining SOABI flags if the needed config
+    var is unset or unavailable."""
+    val = sysconfig.get_config_var(var)
+    if val is None:
+        if warn:
+            warnings.warn(
+                f"Config variable '{var}' is unset, Python ABI tag may be incorrect",
+                RuntimeWarning,
+                stacklevel=2,
+            )
+        return fallback
+    return val == expected
+
+
+def get_abi_tag() -> str | None:
+    """Return the ABI tag based on SOABI (if available) or emulate SOABI (PyPy2)."""
+    soabi: str = sysconfig.get_config_var("SOABI")
+    impl = tags.interpreter_name()
+    if not soabi and impl in ("cp", "pp") and hasattr(sys, "maxunicode"):
+        d = ""
+        u = ""
+        if get_flag("Py_DEBUG", hasattr(sys, "gettotalrefcount"), warn=(impl == "cp")):
+            d = "d"
+
+        abi = f"{impl}{tags.interpreter_version()}{d}{u}"
+    elif soabi and impl == "cp" and soabi.startswith("cpython"):
+        # non-Windows
+        abi = "cp" + soabi.split("-")[1]
+    elif soabi and impl == "cp" and soabi.startswith("cp"):
+        # Windows
+        abi = soabi.split("-")[0]
+        if hasattr(sys, "gettotalrefcount"):
+            # using debug build; append "d" flag
+            abi += "d"
+    elif soabi and impl == "pp":
+        # we want something like pypy36-pp73
+        abi = "-".join(soabi.split("-")[:2])
+        abi = abi.replace(".", "_").replace("-", "_")
+    elif soabi and impl == "graalpy":
+        abi = "-".join(soabi.split("-")[:3])
+        abi = abi.replace(".", "_").replace("-", "_")
+    elif soabi:
+        abi = soabi.replace(".", "_").replace("-", "_")
+    else:
+        abi = None
+
+    return abi
+
+
+def safer_version(version: str) -> str:
+    return safe_version(version).replace("-", "_")
+
+
+class bdist_wheel(Command):
+    description = "create a wheel distribution"
+
+    supported_compressions = {
+        "stored": ZIP_STORED,
+        "deflated": ZIP_DEFLATED,
+    }
+
+    user_options = [
+        ("bdist-dir=", "b", "temporary directory for creating the distribution"),
+        (
+            "plat-name=",
+            "p",
+            "platform name to embed in generated filenames "
+            f"[default: {get_platform(None)}]",
+        ),
+        (
+            "keep-temp",
+            "k",
+            "keep the pseudo-installation tree around after "
+            "creating the distribution archive",
+        ),
+        ("dist-dir=", "d", "directory to put final built distributions in"),
+        ("skip-build", None, "skip rebuilding everything (for testing/debugging)"),
+        (
+            "relative",
+            None,
+            "build the archive using relative paths [default: false]",
+        ),
+        (
+            "owner=",
+            "u",
+            "Owner name used when creating a tar file [default: current user]",
+        ),
+        (
+            "group=",
+            "g",
+            "Group name used when creating a tar file [default: current group]",
+        ),
+        ("universal", None, "*DEPRECATED* make a universal wheel [default: false]"),
+        (
+            "compression=",
+            None,
+            f"zipfile compression (one of: {', '.join(supported_compressions)}) [default: 'deflated']",
+        ),
+        (
+            "python-tag=",
+            None,
+            f"Python implementation compatibility tag [default: '{python_tag()}']",
+        ),
+        (
+            "build-number=",
+            None,
+            "Build number for this particular version. "
+            "As specified in PEP-0427, this must start with a digit. "
+            "[default: None]",
+        ),
+        (
+            "py-limited-api=",
+            None,
+            "Python tag (cp32|cp33|cpNN) for abi3 wheel tag [default: false]",
+        ),
+        (
+            "dist-info-dir=",
+            None,
+            "directory where a pre-generated dist-info can be found (e.g. as a "
+            "result of calling the PEP517 'prepare_metadata_for_build_wheel' "
+            "method)",
+        ),
+    ]
+
+    boolean_options = ["keep-temp", "skip-build", "relative", "universal"]
+
+    def initialize_options(self) -> None:
+        self.bdist_dir: str | None = None
+        self.data_dir = ""
+        self.plat_name: str | None = None
+        self.plat_tag: str | None = None
+        self.format = "zip"
+        self.keep_temp = False
+        self.dist_dir: str | None = None
+        self.dist_info_dir = None
+        self.egginfo_dir: str | None = None
+        self.root_is_pure: bool | None = None
+        self.skip_build = False
+        self.relative = False
+        self.owner = None
+        self.group = None
+        self.universal = False
+        self.compression: str | int = "deflated"
+        self.python_tag = python_tag()
+        self.build_number: str | None = None
+        self.py_limited_api: str | Literal[False] = False
+        self.plat_name_supplied = False
+
+    def finalize_options(self) -> None:
+        if not self.bdist_dir:
+            bdist_base = self.get_finalized_command("bdist").bdist_base
+            self.bdist_dir = os.path.join(bdist_base, "wheel")
+
+        if self.dist_info_dir is None:
+            egg_info = cast(egg_info_cls, self.distribution.get_command_obj("egg_info"))
+            egg_info.ensure_finalized()  # needed for correct `wheel_dist_name`
+
+        self.data_dir = self.wheel_dist_name + ".data"
+        self.plat_name_supplied = bool(self.plat_name)
+
+        need_options = ("dist_dir", "plat_name", "skip_build")
+
+        self.set_undefined_options("bdist", *zip(need_options, need_options))
+
+        self.root_is_pure = not (
+            self.distribution.has_ext_modules() or self.distribution.has_c_libraries()
+        )
+
+        self._validate_py_limited_api()
+
+        # Support legacy [wheel] section for setting universal
+        wheel = self.distribution.get_option_dict("wheel")
+        if "universal" in wheel:  # pragma: no cover
+            # please don't define this in your global configs
+            log.warn("The [wheel] section is deprecated. Use [bdist_wheel] instead.")
+            val = wheel["universal"][1].strip()
+            if val.lower() in ("1", "true", "yes"):
+                self.universal = True
+
+        if self.universal:
+            SetuptoolsDeprecationWarning.emit(
+                "bdist_wheel.universal is deprecated",
+                """
+                With Python 2.7 end-of-life, support for building universal wheels
+                (i.e., wheels that support both Python 2 and Python 3)
+                is being obviated.
+                Please discontinue using this option, or if you still need it,
+                file an issue with pypa/setuptools describing your use case.
+                """,
+                due_date=(2025, 8, 30),  # Introduced in 2024-08-30
+            )
+
+        if self.build_number is not None and not self.build_number[:1].isdigit():
+            raise ValueError("Build tag (build-number) must start with a digit.")
+
+    def _validate_py_limited_api(self) -> None:
+        if not self.py_limited_api:
+            return
+
+        if not re.match(PY_LIMITED_API_PATTERN, self.py_limited_api):
+            raise ValueError(f"py-limited-api must match '{PY_LIMITED_API_PATTERN}'")
+
+        if sysconfig.get_config_var("Py_GIL_DISABLED"):
+            raise ValueError(
+                f"`py_limited_api={self.py_limited_api!r}` not supported. "
+                "`Py_LIMITED_API` is currently incompatible with "
+                "`Py_GIL_DISABLED`."
+                "See https://github.com/python/cpython/issues/111506."
+            )
+
+    @property
+    def wheel_dist_name(self) -> str:
+        """Return distribution full name with - replaced with _"""
+        components = [
+            safer_name(self.distribution.get_name()),
+            safer_version(self.distribution.get_version()),
+        ]
+        if self.build_number:
+            components.append(self.build_number)
+        return "-".join(components)
+
+    def get_tag(self) -> tuple[str, str, str]:
+        # bdist sets self.plat_name if unset, we should only use it for purepy
+        # wheels if the user supplied it.
+        if self.plat_name_supplied and self.plat_name:
+            plat_name = self.plat_name
+        elif self.root_is_pure:
+            plat_name = "any"
+        else:
+            # macosx contains system version in platform name so need special handle
+            if self.plat_name and not self.plat_name.startswith("macosx"):
+                plat_name = self.plat_name
+            else:
+                # on macosx always limit the platform name to comply with any
+                # c-extension modules in bdist_dir, since the user can specify
+                # a higher MACOSX_DEPLOYMENT_TARGET via tools like CMake
+
+                # on other platforms, and on macosx if there are no c-extension
+                # modules, use the default platform name.
+                plat_name = get_platform(self.bdist_dir)
+
+            if _is_32bit_interpreter():
+                if plat_name in ("linux-x86_64", "linux_x86_64"):
+                    plat_name = "linux_i686"
+                if plat_name in ("linux-aarch64", "linux_aarch64"):
+                    # TODO armv8l, packaging pull request #690 => this did not land
+                    # in pip/packaging yet
+                    plat_name = "linux_armv7l"
+
+        plat_name = (
+            plat_name.lower().replace("-", "_").replace(".", "_").replace(" ", "_")
+        )
+
+        if self.root_is_pure:
+            if self.universal:
+                impl = "py2.py3"
+            else:
+                impl = self.python_tag
+            tag = (impl, "none", plat_name)
+        else:
+            impl_name = tags.interpreter_name()
+            impl_ver = tags.interpreter_version()
+            impl = impl_name + impl_ver
+            # We don't work on CPython 3.1, 3.0.
+            if self.py_limited_api and (impl_name + impl_ver).startswith("cp3"):
+                impl = self.py_limited_api
+                abi_tag = "abi3"
+            else:
+                abi_tag = str(get_abi_tag()).lower()
+            tag = (impl, abi_tag, plat_name)
+            # issue gh-374: allow overriding plat_name
+            supported_tags = [
+                (t.interpreter, t.abi, plat_name) for t in tags.sys_tags()
+            ]
+            assert tag in supported_tags, (
+                f"would build wheel with unsupported tag {tag}"
+            )
+        return tag
+
+    def run(self):
+        build_scripts = self.reinitialize_command("build_scripts")
+        build_scripts.executable = "python"
+        build_scripts.force = True
+
+        build_ext = self.reinitialize_command("build_ext")
+        build_ext.inplace = False
+
+        if not self.skip_build:
+            self.run_command("build")
+
+        install = self.reinitialize_command("install", reinit_subcommands=True)
+        install.root = self.bdist_dir
+        install.compile = False
+        install.skip_build = self.skip_build
+        install.warn_dir = False
+
+        # A wheel without setuptools scripts is more cross-platform.
+        # Use the (undocumented) `no_ep` option to setuptools'
+        # install_scripts command to avoid creating entry point scripts.
+        install_scripts = self.reinitialize_command("install_scripts")
+        install_scripts.no_ep = True
+
+        # Use a custom scheme for the archive, because we have to decide
+        # at installation time which scheme to use.
+        for key in ("headers", "scripts", "data", "purelib", "platlib"):
+            setattr(install, "install_" + key, os.path.join(self.data_dir, key))
+
+        basedir_observed = ""
+
+        if os.name == "nt":
+            # win32 barfs if any of these are ''; could be '.'?
+            # (distutils.command.install:change_roots bug)
+            basedir_observed = os.path.normpath(os.path.join(self.data_dir, ".."))
+            self.install_libbase = self.install_lib = basedir_observed
+
+        setattr(
+            install,
+            "install_purelib" if self.root_is_pure else "install_platlib",
+            basedir_observed,
+        )
+
+        log.info(f"installing to {self.bdist_dir}")
+
+        self.run_command("install")
+
+        impl_tag, abi_tag, plat_tag = self.get_tag()
+        archive_basename = f"{self.wheel_dist_name}-{impl_tag}-{abi_tag}-{plat_tag}"
+        if not self.relative:
+            archive_root = self.bdist_dir
+        else:
+            archive_root = os.path.join(
+                self.bdist_dir, self._ensure_relative(install.install_base)
+            )
+
+        self.set_undefined_options("install_egg_info", ("target", "egginfo_dir"))
+        distinfo_dirname = (
+            f"{safer_name(self.distribution.get_name())}-"
+            f"{safer_version(self.distribution.get_version())}.dist-info"
+        )
+        distinfo_dir = os.path.join(self.bdist_dir, distinfo_dirname)
+        if self.dist_info_dir:
+            # Use the given dist-info directly.
+            log.debug(f"reusing {self.dist_info_dir}")
+            shutil.copytree(self.dist_info_dir, distinfo_dir)
+            # Egg info is still generated, so remove it now to avoid it getting
+            # copied into the wheel.
+            _shutil.rmtree(self.egginfo_dir)
+        else:
+            # Convert the generated egg-info into dist-info.
+            self.egg2dist(self.egginfo_dir, distinfo_dir)
+
+        self.write_wheelfile(distinfo_dir)
+
+        # Make the archive
+        if not os.path.exists(self.dist_dir):
+            os.makedirs(self.dist_dir)
+
+        wheel_path = os.path.join(self.dist_dir, archive_basename + ".whl")
+        with WheelFile(wheel_path, "w", self._zip_compression()) as wf:
+            wf.write_files(archive_root)
+
+        # Add to 'Distribution.dist_files' so that the "upload" command works
+        getattr(self.distribution, "dist_files", []).append((
+            "bdist_wheel",
+            f"{sys.version_info.major}.{sys.version_info.minor}",
+            wheel_path,
+        ))
+
+        if not self.keep_temp:
+            log.info(f"removing {self.bdist_dir}")
+            if not self.dry_run:
+                _shutil.rmtree(self.bdist_dir)
+
+    def write_wheelfile(
+        self, wheelfile_base: str, generator: str = f"setuptools ({__version__})"
+    ) -> None:
+        from email.message import Message
+
+        msg = Message()
+        msg["Wheel-Version"] = "1.0"  # of the spec
+        msg["Generator"] = generator
+        msg["Root-Is-Purelib"] = str(self.root_is_pure).lower()
+        if self.build_number is not None:
+            msg["Build"] = self.build_number
+
+        # Doesn't work for bdist_wininst
+        impl_tag, abi_tag, plat_tag = self.get_tag()
+        for impl in impl_tag.split("."):
+            for abi in abi_tag.split("."):
+                for plat in plat_tag.split("."):
+                    msg["Tag"] = "-".join((impl, abi, plat))
+
+        wheelfile_path = os.path.join(wheelfile_base, "WHEEL")
+        log.info(f"creating {wheelfile_path}")
+        with open(wheelfile_path, "wb") as f:
+            BytesGenerator(f, maxheaderlen=0).flatten(msg)
+
+    def _ensure_relative(self, path: str) -> str:
+        # copied from dir_util, deleted
+        drive, path = os.path.splitdrive(path)
+        if path[0:1] == os.sep:
+            path = drive + path[1:]
+        return path
+
+    @property
+    def license_paths(self) -> Iterable[str]:
+        if setuptools_major_version >= 57:
+            # Setuptools has resolved any patterns to actual file names
+            return self.distribution.metadata.license_files or ()
+
+        files = set[str]()
+        metadata = self.distribution.get_option_dict("metadata")
+        if setuptools_major_version >= 42:
+            # Setuptools recognizes the license_files option but does not do globbing
+            patterns = cast(Sequence[str], self.distribution.metadata.license_files)
+        else:
+            # Prior to those, wheel is entirely responsible for handling license files
+            if "license_files" in metadata:
+                patterns = metadata["license_files"][1].split()
+            else:
+                patterns = ()
+
+        if "license_file" in metadata:
+            warnings.warn(
+                'The "license_file" option is deprecated. Use "license_files" instead.',
+                DeprecationWarning,
+                stacklevel=2,
+            )
+            files.add(metadata["license_file"][1])
+
+        if not files and not patterns and not isinstance(patterns, list):
+            patterns = ("LICEN[CS]E*", "COPYING*", "NOTICE*", "AUTHORS*")
+
+        for pattern in patterns:
+            for path in iglob(pattern):
+                if path.endswith("~"):
+                    log.debug(
+                        f'ignoring license file "{path}" as it looks like a backup'
+                    )
+                    continue
+
+                if path not in files and os.path.isfile(path):
+                    log.info(
+                        f'adding license file "{path}" (matched pattern "{pattern}")'
+                    )
+                    files.add(path)
+
+        return files
+
+    def egg2dist(self, egginfo_path: str, distinfo_path: str) -> None:
+        """Convert an .egg-info directory into a .dist-info directory"""
+
+        def adios(p: str) -> None:
+            """Appropriately delete directory, file or link."""
+            if os.path.exists(p) and not os.path.islink(p) and os.path.isdir(p):
+                _shutil.rmtree(p)
+            elif os.path.exists(p):
+                os.unlink(p)
+
+        adios(distinfo_path)
+
+        if not os.path.exists(egginfo_path):
+            # There is no egg-info. This is probably because the egg-info
+            # file/directory is not named matching the distribution name used
+            # to name the archive file. Check for this case and report
+            # accordingly.
+            import glob
+
+            pat = os.path.join(os.path.dirname(egginfo_path), "*.egg-info")
+            possible = glob.glob(pat)
+            err = f"Egg metadata expected at {egginfo_path} but not found"
+            if possible:
+                alt = os.path.basename(possible[0])
+                err += f" ({alt} found - possible misnamed archive file?)"
+
+            raise ValueError(err)
+
+        # .egg-info is a directory
+        pkginfo_path = os.path.join(egginfo_path, "PKG-INFO")
+
+        # ignore common egg metadata that is useless to wheel
+        shutil.copytree(
+            egginfo_path,
+            distinfo_path,
+            ignore=lambda x, y: {
+                "PKG-INFO",
+                "requires.txt",
+                "SOURCES.txt",
+                "not-zip-safe",
+            },
+        )
+
+        # delete dependency_links if it is only whitespace
+        dependency_links_path = os.path.join(distinfo_path, "dependency_links.txt")
+        with open(dependency_links_path, encoding="utf-8") as dependency_links_file:
+            dependency_links = dependency_links_file.read().strip()
+        if not dependency_links:
+            adios(dependency_links_path)
+
+        metadata_path = os.path.join(distinfo_path, "METADATA")
+        shutil.copy(pkginfo_path, metadata_path)
+
+        licenses_folder_path = os.path.join(distinfo_path, "licenses")
+        for license_path in self.license_paths:
+            safe_path = _safe_license_file(license_path)
+            dist_info_license_path = os.path.join(licenses_folder_path, safe_path)
+            os.makedirs(os.path.dirname(dist_info_license_path), exist_ok=True)
+            shutil.copy(license_path, dist_info_license_path)
+
+        adios(egginfo_path)
+
+    def _zip_compression(self) -> int:
+        if (
+            isinstance(self.compression, int)
+            and self.compression in self.supported_compressions.values()
+        ):
+            return self.compression
+
+        compression = self.supported_compressions.get(str(self.compression))
+        if compression is not None:
+            return compression
+
+        raise ValueError(f"Unsupported compression: {self.compression!r}")
diff --git a/setuptools/command/bdist_wininst.py b/setuptools/command/bdist_wininst.py
deleted file mode 100755
index 93e6846d79..0000000000
--- a/setuptools/command/bdist_wininst.py
+++ /dev/null
@@ -1,41 +0,0 @@
-from distutils.command.bdist_wininst import bdist_wininst as _bdist_wininst
-import os, sys
-
-class bdist_wininst(_bdist_wininst):
-
-    def create_exe(self, arcname, fullname, bitmap=None):
-        _bdist_wininst.create_exe(self, arcname, fullname, bitmap)
-        dist_files = getattr(self.distribution, 'dist_files', [])
-
-        if self.target_version:
-            installer_name = os.path.join(self.dist_dir,
-                                          "%s.win32-py%s.exe" %
-                                           (fullname, self.target_version))
-            pyversion = self.target_version
-
-            # fix 2.5 bdist_wininst ignoring --target-version spec
-            bad = ('bdist_wininst','any',installer_name)
-            if bad in dist_files:
-                dist_files.remove(bad)
-        else:
-            installer_name = os.path.join(self.dist_dir,
-                                          "%s.win32.exe" % fullname)
-            pyversion = 'any'
-        good = ('bdist_wininst', pyversion, installer_name)
-        if good not in dist_files:
-            dist_files.append(good)
-
-    def reinitialize_command (self, command, reinit_subcommands=0):
-        cmd = self.distribution.reinitialize_command(
-            command, reinit_subcommands)
-        if command in ('install', 'install_lib'):
-            cmd.install_lib = None  # work around distutils bug
-        return cmd
-
-    def run(self):
-        self._is_running = True
-        try:
-            _bdist_wininst.run(self)
-        finally:
-            self._is_running = False
-
diff --git a/setuptools/command/build.py b/setuptools/command/build.py
new file mode 100644
index 0000000000..54cbb8d2e7
--- /dev/null
+++ b/setuptools/command/build.py
@@ -0,0 +1,135 @@
+from __future__ import annotations
+
+from typing import Protocol
+
+from ..dist import Distribution
+
+from distutils.command.build import build as _build
+
+_ORIGINAL_SUBCOMMANDS = {"build_py", "build_clib", "build_ext", "build_scripts"}
+
+
+class build(_build):
+    distribution: Distribution  # override distutils.dist.Distribution with setuptools.dist.Distribution
+
+    # copy to avoid sharing the object with parent class
+    sub_commands = _build.sub_commands[:]
+
+
+class SubCommand(Protocol):
+    """In order to support editable installations (see :pep:`660`) all
+    build subcommands **SHOULD** implement this protocol. They also **MUST** inherit
+    from ``setuptools.Command``.
+
+    When creating an :pep:`editable wheel <660>`, ``setuptools`` will try to evaluate
+    custom ``build`` subcommands using the following procedure:
+
+    1. ``setuptools`` will set the ``editable_mode`` attribute to ``True``
+    2. ``setuptools`` will execute the ``run()`` command.
+
+       .. important::
+          Subcommands **SHOULD** take advantage of ``editable_mode=True`` to adequate
+          its behaviour or perform optimisations.
+
+          For example, if a subcommand doesn't need to generate an extra file and
+          all it does is to copy a source file into the build directory,
+          ``run()`` **SHOULD** simply "early return".
+
+          Similarly, if the subcommand creates files that would be placed alongside
+          Python files in the final distribution, during an editable install
+          the command **SHOULD** generate these files "in place" (i.e. write them to
+          the original source directory, instead of using the build directory).
+          Note that ``get_output_mapping()`` should reflect that and include mappings
+          for "in place" builds accordingly.
+
+    3. ``setuptools`` use any knowledge it can derive from the return values of
+       ``get_outputs()`` and ``get_output_mapping()`` to create an editable wheel.
+       When relevant ``setuptools`` **MAY** attempt to use file links based on the value
+       of ``get_output_mapping()``. Alternatively, ``setuptools`` **MAY** attempt to use
+       :doc:`import hooks ` to redirect any attempt to import
+       to the directory with the original source code and other files built in place.
+
+    Please note that custom sub-commands **SHOULD NOT** rely on ``run()`` being
+    executed (or not) to provide correct return values for ``get_outputs()``,
+    ``get_output_mapping()`` or ``get_source_files()``. The ``get_*`` methods should
+    work independently of ``run()``.
+    """
+
+    editable_mode: bool = False
+    """Boolean flag that will be set to ``True`` when setuptools is used for an
+    editable installation (see :pep:`660`).
+    Implementations **SHOULD** explicitly set the default value of this attribute to
+    ``False``.
+    When subcommands run, they can use this flag to perform optimizations or change
+    their behaviour accordingly.
+    """
+
+    build_lib: str
+    """String representing the directory where the build artifacts should be stored,
+    e.g. ``build/lib``.
+    For example, if a distribution wants to provide a Python module named ``pkg.mod``,
+    then a corresponding file should be written to ``{build_lib}/package/module.py``.
+    A way of thinking about this is that the files saved under ``build_lib``
+    would be eventually copied to one of the directories in :obj:`site.PREFIXES`
+    upon installation.
+
+    A command that produces platform-independent files (e.g. compiling text templates
+    into Python functions), **CAN** initialize ``build_lib`` by copying its value from
+    the ``build_py`` command. On the other hand, a command that produces
+    platform-specific files **CAN** initialize ``build_lib`` by copying its value from
+    the ``build_ext`` command. In general this is done inside the ``finalize_options``
+    method with the help of the ``set_undefined_options`` command::
+
+        def finalize_options(self):
+            self.set_undefined_options("build_py", ("build_lib", "build_lib"))
+            ...
+    """
+
+    def initialize_options(self) -> None:
+        """(Required by the original :class:`setuptools.Command` interface)"""
+        ...
+
+    def finalize_options(self) -> None:
+        """(Required by the original :class:`setuptools.Command` interface)"""
+        ...
+
+    def run(self) -> None:
+        """(Required by the original :class:`setuptools.Command` interface)"""
+        ...
+
+    def get_source_files(self) -> list[str]:
+        """
+        Return a list of all files that are used by the command to create the expected
+        outputs.
+        For example, if your build command transpiles Java files into Python, you should
+        list here all the Java files.
+        The primary purpose of this function is to help populating the ``sdist``
+        with all the files necessary to build the distribution.
+        All files should be strings relative to the project root directory.
+        """
+        ...
+
+    def get_outputs(self) -> list[str]:
+        """
+        Return a list of files intended for distribution as they would have been
+        produced by the build.
+        These files should be strings in the form of
+        ``"{build_lib}/destination/file/path"``.
+
+        .. note::
+           The return value of ``get_output()`` should include all files used as keys
+           in ``get_output_mapping()`` plus files that are generated during the build
+           and don't correspond to any source file already present in the project.
+        """
+        ...
+
+    def get_output_mapping(self) -> dict[str, str]:
+        """
+        Return a mapping between destination files as they would be produced by the
+        build (dict keys) into the respective existing (source) files (dict values).
+        Existing (source) files should be represented as strings relative to the project
+        root directory.
+        Destination files should be strings in the form of
+        ``"{build_lib}/destination/file/path"``.
+        """
+        ...
diff --git a/setuptools/command/build_clib.py b/setuptools/command/build_clib.py
new file mode 100644
index 0000000000..f376f4ce4d
--- /dev/null
+++ b/setuptools/command/build_clib.py
@@ -0,0 +1,103 @@
+from ..dist import Distribution
+from ..modified import newer_pairwise_group
+
+import distutils.command.build_clib as orig
+from distutils import log
+from distutils.errors import DistutilsSetupError
+
+
+class build_clib(orig.build_clib):
+    """
+    Override the default build_clib behaviour to do the following:
+
+    1. Implement a rudimentary timestamp-based dependency system
+       so 'compile()' doesn't run every time.
+    2. Add more keys to the 'build_info' dictionary:
+        * obj_deps - specify dependencies for each object compiled.
+                     this should be a dictionary mapping a key
+                     with the source filename to a list of
+                     dependencies. Use an empty string for global
+                     dependencies.
+        * cflags   - specify a list of additional flags to pass to
+                     the compiler.
+    """
+
+    distribution: Distribution  # override distutils.dist.Distribution with setuptools.dist.Distribution
+
+    def build_libraries(self, libraries) -> None:
+        for lib_name, build_info in libraries:
+            sources = build_info.get('sources')
+            if sources is None or not isinstance(sources, (list, tuple)):
+                raise DistutilsSetupError(
+                    f"in 'libraries' option (library '{lib_name}'), "
+                    "'sources' must be present and must be "
+                    "a list of source filenames"
+                )
+            sources = sorted(list(sources))
+
+            log.info("building '%s' library", lib_name)
+
+            # Make sure everything is the correct type.
+            # obj_deps should be a dictionary of keys as sources
+            # and a list/tuple of files that are its dependencies.
+            obj_deps = build_info.get('obj_deps', dict())
+            if not isinstance(obj_deps, dict):
+                raise DistutilsSetupError(
+                    f"in 'libraries' option (library '{lib_name}'), "
+                    "'obj_deps' must be a dictionary of "
+                    "type 'source: list'"
+                )
+            dependencies = []
+
+            # Get the global dependencies that are specified by the '' key.
+            # These will go into every source's dependency list.
+            global_deps = obj_deps.get('', list())
+            if not isinstance(global_deps, (list, tuple)):
+                raise DistutilsSetupError(
+                    f"in 'libraries' option (library '{lib_name}'), "
+                    "'obj_deps' must be a dictionary of "
+                    "type 'source: list'"
+                )
+
+            # Build the list to be used by newer_pairwise_group
+            # each source will be auto-added to its dependencies.
+            for source in sources:
+                src_deps = [source]
+                src_deps.extend(global_deps)
+                extra_deps = obj_deps.get(source, list())
+                if not isinstance(extra_deps, (list, tuple)):
+                    raise DistutilsSetupError(
+                        f"in 'libraries' option (library '{lib_name}'), "
+                        "'obj_deps' must be a dictionary of "
+                        "type 'source: list'"
+                    )
+                src_deps.extend(extra_deps)
+                dependencies.append(src_deps)
+
+            expected_objects = self.compiler.object_filenames(
+                sources,
+                output_dir=self.build_temp,
+            )
+
+            if newer_pairwise_group(dependencies, expected_objects) != ([], []):
+                # First, compile the source code to object files in the library
+                # directory.  (This should probably change to putting object
+                # files in a temporary build directory.)
+                macros = build_info.get('macros')
+                include_dirs = build_info.get('include_dirs')
+                cflags = build_info.get('cflags')
+                self.compiler.compile(
+                    sources,
+                    output_dir=self.build_temp,
+                    macros=macros,
+                    include_dirs=include_dirs,
+                    extra_postargs=cflags,
+                    debug=self.debug,
+                )
+
+            # Now "link" the object files together into a static library.
+            # (On Unix at least, this isn't really linking -- it just
+            # builds an archive.  Whatever.)
+            self.compiler.create_static_lib(
+                expected_objects, lib_name, output_dir=self.build_clib, debug=self.debug
+            )
diff --git a/setuptools/command/build_ext.py b/setuptools/command/build_ext.py
index c0aaa8e80c..be833a379c 100644
--- a/setuptools/command/build_ext.py
+++ b/setuptools/command/build_ext.py
@@ -1,19 +1,63 @@
-from distutils.command.build_ext import build_ext as _du_build_ext
-try:
-    # Attempt to use Pyrex for building extensions, if available
-    from Pyrex.Distutils.build_ext import build_ext as _build_ext
-except ImportError:
-    _build_ext = _du_build_ext
-
-import os, sys
-from distutils.file_util import copy_file
-from setuptools.extension import Library
+from __future__ import annotations
+
+import itertools
+import os
+import sys
+from collections.abc import Iterator
+from importlib.machinery import EXTENSION_SUFFIXES
+from importlib.util import cache_from_source as _compiled_file_name
+from pathlib import Path
+from typing import TYPE_CHECKING
+
+from setuptools.dist import Distribution
+from setuptools.errors import BaseError
+from setuptools.extension import Extension, Library
+
+from distutils import log
 from distutils.ccompiler import new_compiler
 from distutils.sysconfig import customize_compiler, get_config_var
-get_config_var("LDSHARED")  # make sure _config_vars is initialized
-from distutils.sysconfig import _config_vars
-from distutils import log
-from distutils.errors import *
+
+if TYPE_CHECKING:
+    # Cython not installed on CI tests, causing _build_ext to be `Any`
+    from distutils.command.build_ext import build_ext as _build_ext
+else:
+    try:
+        # Attempt to use Cython for building extensions, if available
+        from Cython.Distutils.build_ext import build_ext as _build_ext
+
+        # Additionally, assert that the compiler module will load
+        # also. Ref #1229.
+        __import__('Cython.Compiler.Main')
+    except ImportError:
+        from distutils.command.build_ext import build_ext as _build_ext
+
+# make sure _config_vars is initialized
+get_config_var("LDSHARED")
+# Not publicly exposed in typeshed distutils stubs, but this is done on purpose
+# See https://github.com/pypa/setuptools/pull/4228#issuecomment-1959856400
+from distutils.sysconfig import _config_vars as _CONFIG_VARS  # noqa: E402
+
+
+def _customize_compiler_for_shlib(compiler):
+    if sys.platform == "darwin":
+        # building .dylib requires additional compiler flags on OSX; here we
+        # temporarily substitute the pyconfig.h variables so that distutils'
+        # 'customize_compiler' uses them before we build the shared libraries.
+        tmp = _CONFIG_VARS.copy()
+        try:
+            # XXX Help!  I don't have any idea whether these are right...
+            _CONFIG_VARS['LDSHARED'] = (
+                "gcc -Wl,-x -dynamiclib -undefined dynamic_lookup"
+            )
+            _CONFIG_VARS['CCSHARED'] = " -dynamiclib"
+            _CONFIG_VARS['SO'] = ".dylib"
+            customize_compiler(compiler)
+        finally:
+            _CONFIG_VARS.clear()
+            _CONFIG_VARS.update(tmp)
+    else:
+        customize_compiler(compiler)
+
 
 have_rtld = False
 use_stubs = False
@@ -23,87 +67,136 @@
     use_stubs = True
 elif os.name != 'nt':
     try:
-        from dl import RTLD_NOW
-        have_rtld = True
-        use_stubs = True
+        import dl  # type: ignore[import-not-found] # https://github.com/python/mypy/issues/13002
+
+        use_stubs = have_rtld = hasattr(dl, 'RTLD_NOW')
     except ImportError:
         pass
 
-def if_dl(s):
-    if have_rtld:
-        return s
-    return ''
-
 
+def if_dl(s):
+    return s if have_rtld else ''
 
 
+def get_abi3_suffix():
+    """Return the file extension for an abi3-compliant Extension()"""
+    for suffix in EXTENSION_SUFFIXES:
+        if '.abi3' in suffix:  # Unix
+            return suffix
+        elif suffix == '.pyd':  # Windows
+            return suffix
+    return None
 
 
 class build_ext(_build_ext):
+    distribution: Distribution  # override distutils.dist.Distribution with setuptools.dist.Distribution
+    editable_mode = False
+    inplace = False
+
     def run(self):
         """Build extensions in build directory, then copy if --inplace"""
-        old_inplace, self.inplace = self.inplace, 0
+        old_inplace, self.inplace = self.inplace, False
         _build_ext.run(self)
         self.inplace = old_inplace
         if old_inplace:
             self.copy_extensions_to_source()
 
-    def copy_extensions_to_source(self):
+    def _get_inplace_equivalent(self, build_py, ext: Extension) -> tuple[str, str]:
+        fullname = self.get_ext_fullname(ext.name)
+        filename = self.get_ext_filename(fullname)
+        modpath = fullname.split('.')
+        package = '.'.join(modpath[:-1])
+        package_dir = build_py.get_package_dir(package)
+        inplace_file = os.path.join(package_dir, os.path.basename(filename))
+        regular_file = os.path.join(self.build_lib, filename)
+        return (inplace_file, regular_file)
+
+    def copy_extensions_to_source(self) -> None:
         build_py = self.get_finalized_command('build_py')
         for ext in self.extensions:
-            fullname = self.get_ext_fullname(ext.name)
-            filename = self.get_ext_filename(fullname)
-            modpath = fullname.split('.')
-            package = '.'.join(modpath[:-1])
-            package_dir = build_py.get_package_dir(package)
-            dest_filename = os.path.join(package_dir,os.path.basename(filename))
-            src_filename = os.path.join(self.build_lib,filename)
+            inplace_file, regular_file = self._get_inplace_equivalent(build_py, ext)
 
             # Always copy, even if source is older than destination, to ensure
             # that the right extensions for the current Python/platform are
             # used.
-            copy_file(
-                src_filename, dest_filename, verbose=self.verbose,
-                dry_run=self.dry_run
-            )
+            if os.path.exists(regular_file) or not ext.optional:
+                self.copy_file(regular_file, inplace_file, level=self.verbose)
+
             if ext._needs_stub:
-                self.write_stub(package_dir or os.curdir, ext, True)
+                inplace_stub = self._get_equivalent_stub(ext, inplace_file)
+                self._write_stub_file(inplace_stub, ext, compile=True)
+                # Always compile stub and remove the original (leave the cache behind)
+                # (this behaviour was observed in previous iterations of the code)
 
+    def _get_equivalent_stub(self, ext: Extension, output_file: str) -> str:
+        dir_ = os.path.dirname(output_file)
+        _, _, name = ext.name.rpartition(".")
+        return f"{os.path.join(dir_, name)}.py"
 
-    if _build_ext is not _du_build_ext and not hasattr(_build_ext,'pyrex_sources'):
-        # Workaround for problems using some Pyrex versions w/SWIG and/or 2.4
-        def swig_sources(self, sources, *otherargs):
-            # first do any Pyrex processing
-            sources = _build_ext.swig_sources(self, sources) or sources
-            # Then do any actual SWIG stuff on the remainder
-            return _du_build_ext.swig_sources(self, sources, *otherargs)
+    def _get_output_mapping(self) -> Iterator[tuple[str, str]]:
+        if not self.inplace:
+            return
 
+        build_py = self.get_finalized_command('build_py')
+        opt = self.get_finalized_command('install_lib').optimize or ""
 
+        for ext in self.extensions:
+            inplace_file, regular_file = self._get_inplace_equivalent(build_py, ext)
+            yield (regular_file, inplace_file)
 
-    def get_ext_filename(self, fullname):
-        filename = _build_ext.get_ext_filename(self,fullname)
-        ext = self.ext_map[fullname]
-        if isinstance(ext,Library):
-            fn, ext = os.path.splitext(filename)
-            return self.shlib_compiler.library_filename(fn,libtype)
-        elif use_stubs and ext._links_to_dynamic:
-            d,fn = os.path.split(filename)
-            return os.path.join(d,'dl-'+fn)
+            if ext._needs_stub:
+                # This version of `build_ext` always builds artifacts in another dir,
+                # when "inplace=True" is given it just copies them back.
+                # This is done in the `copy_extensions_to_source` function, which
+                # always compile stub files via `_compile_and_remove_stub`.
+                # At the end of the process, a `.pyc` stub file is created without the
+                # corresponding `.py`.
+
+                inplace_stub = self._get_equivalent_stub(ext, inplace_file)
+                regular_stub = self._get_equivalent_stub(ext, regular_file)
+                inplace_cache = _compiled_file_name(inplace_stub, optimization=opt)
+                output_cache = _compiled_file_name(regular_stub, optimization=opt)
+                yield (output_cache, inplace_cache)
+
+    def get_ext_filename(self, fullname: str) -> str:
+        so_ext = os.getenv('SETUPTOOLS_EXT_SUFFIX')
+        if so_ext:
+            filename = os.path.join(*fullname.split('.')) + so_ext
         else:
-            return filename
+            filename = _build_ext.get_ext_filename(self, fullname)
+            ext_suffix = get_config_var('EXT_SUFFIX')
+            if not isinstance(ext_suffix, str):
+                raise OSError(
+                    "Configuration variable EXT_SUFFIX not found for this platform "
+                    "and environment variable SETUPTOOLS_EXT_SUFFIX is missing"
+                )
+            so_ext = ext_suffix
+
+        if fullname in self.ext_map:
+            ext = self.ext_map[fullname]
+            abi3_suffix = get_abi3_suffix()
+            if ext.py_limited_api and abi3_suffix:  # Use abi3
+                filename = filename[: -len(so_ext)] + abi3_suffix
+            if isinstance(ext, Library):
+                fn, ext = os.path.splitext(filename)
+                return self.shlib_compiler.library_filename(fn, libtype)
+            elif use_stubs and ext._links_to_dynamic:
+                d, fn = os.path.split(filename)
+                return os.path.join(d, 'dl-' + fn)
+        return filename
 
     def initialize_options(self):
         _build_ext.initialize_options(self)
         self.shlib_compiler = None
         self.shlibs = []
         self.ext_map = {}
+        self.editable_mode = False
 
-    def finalize_options(self):
+    def finalize_options(self) -> None:
         _build_ext.finalize_options(self)
         self.extensions = self.extensions or []
         self.check_extensions_list(self.extensions)
-        self.shlibs = [ext for ext in self.extensions
-                        if isinstance(ext,Library)]
+        self.shlibs = [ext for ext in self.extensions if isinstance(ext, Library)]
         if self.shlibs:
             self.setup_shlib_compiler()
         for ext in self.extensions:
@@ -111,39 +204,36 @@ def finalize_options(self):
         for ext in self.extensions:
             fullname = ext._full_name
             self.ext_map[fullname] = ext
-            ltd = ext._links_to_dynamic = \
-                self.shlibs and self.links_to_dynamic(ext) or False
-            ext._needs_stub = ltd and use_stubs and not isinstance(ext,Library)
+
+            # distutils 3.1 will also ask for module names
+            # XXX what to do with conflicts?
+            self.ext_map[fullname.split('.')[-1]] = ext
+
+            ltd = self.shlibs and self.links_to_dynamic(ext) or False
+            ns = ltd and use_stubs and not isinstance(ext, Library)
+            ext._links_to_dynamic = ltd
+            ext._needs_stub = ns
             filename = ext._file_name = self.get_ext_filename(fullname)
-            libdir = os.path.dirname(os.path.join(self.build_lib,filename))
+            libdir = os.path.dirname(os.path.join(self.build_lib, filename))
             if ltd and libdir not in ext.library_dirs:
                 ext.library_dirs.append(libdir)
             if ltd and use_stubs and os.curdir not in ext.runtime_library_dirs:
                 ext.runtime_library_dirs.append(os.curdir)
 
+        if self.editable_mode:
+            self.inplace = True
+
     def setup_shlib_compiler(self):
         compiler = self.shlib_compiler = new_compiler(
             compiler=self.compiler, dry_run=self.dry_run, force=self.force
         )
-        if sys.platform == "darwin":
-            tmp = _config_vars.copy()
-            try:
-                # XXX Help!  I don't have any idea whether these are right...
-                _config_vars['LDSHARED'] = "gcc -Wl,-x -dynamiclib -undefined dynamic_lookup"
-                _config_vars['CCSHARED'] = " -dynamiclib"
-                _config_vars['SO'] = ".dylib"
-                customize_compiler(compiler)
-            finally:
-                _config_vars.clear()
-                _config_vars.update(tmp)
-        else:
-            customize_compiler(compiler)
+        _customize_compiler_for_shlib(compiler)
 
         if self.include_dirs is not None:
             compiler.set_include_dirs(self.include_dirs)
         if self.define is not None:
             # 'define' option is a list of (name,value) tuples
-            for (name,value) in self.define:
+            for name, value in self.define:
                 compiler.define_macro(name, value)
         if self.undef is not None:
             for macro in self.undef:
@@ -158,25 +248,23 @@ def setup_shlib_compiler(self):
             compiler.set_link_objects(self.link_objects)
 
         # hack so distutils' build_extension() builds a library instead
-        compiler.link_shared_object = link_shared_object.__get__(compiler)
-
-
+        compiler.link_shared_object = link_shared_object.__get__(compiler)  # type: ignore[method-assign]
 
     def get_export_symbols(self, ext):
-        if isinstance(ext,Library):
+        if isinstance(ext, Library):
             return ext.export_symbols
-        return _build_ext.get_export_symbols(self,ext)
+        return _build_ext.get_export_symbols(self, ext)
 
-    def build_extension(self, ext):
+    def build_extension(self, ext) -> None:
+        ext._convert_pyx_sources_to_lang()
         _compiler = self.compiler
         try:
-            if isinstance(ext,Library):
+            if isinstance(ext, Library):
                 self.compiler = self.shlib_compiler
-            _build_ext.build_extension(self,ext)
+            _build_ext.build_extension(self, ext)
             if ext._needs_stub:
-                self.write_stub(
-                    self.get_finalized_command('build_py').build_lib, ext
-                )
+                build_lib = self.get_finalized_command('build_py').build_lib
+                self.write_stub(build_lib, ext)
         finally:
             self.compiler = _compiler
 
@@ -186,102 +274,196 @@ def links_to_dynamic(self, ext):
         # XXX as dynamic, and not just using a locally-found version or a
         # XXX static-compiled version
         libnames = dict.fromkeys([lib._full_name for lib in self.shlibs])
-        pkg = '.'.join(ext._full_name.split('.')[:-1]+[''])
-        for libname in ext.libraries:
-            if pkg+libname in libnames: return True
-        return False
-
-    def get_outputs(self):
-        outputs = _build_ext.get_outputs(self)
-        optimize = self.get_finalized_command('build_py').optimize
-        for ext in self.extensions:
-            if ext._needs_stub:
-                base = os.path.join(self.build_lib, *ext._full_name.split('.'))
-                outputs.append(base+'.py')
-                outputs.append(base+'.pyc')
-                if optimize:
-                    outputs.append(base+'.pyo')
-        return outputs
-
-    def write_stub(self, output_dir, ext, compile=False):
-        log.info("writing stub loader for %s to %s",ext._full_name, output_dir)
-        stub_file = os.path.join(output_dir, *ext._full_name.split('.'))+'.py'
+        pkg = '.'.join(ext._full_name.split('.')[:-1] + [''])
+        return any(pkg + libname in libnames for libname in ext.libraries)
+
+    def get_source_files(self) -> list[str]:
+        return [*_build_ext.get_source_files(self), *self._get_internal_depends()]
+
+    def _get_internal_depends(self) -> Iterator[str]:
+        """Yield ``ext.depends`` that are contained by the project directory"""
+        project_root = Path(self.distribution.src_root or os.curdir).resolve()
+        depends = (dep for ext in self.extensions for dep in ext.depends)
+
+        def skip(orig_path: str, reason: str) -> None:
+            log.info(
+                "dependency %s won't be automatically "
+                "included in the manifest: the path %s",
+                orig_path,
+                reason,
+            )
+
+        for dep in depends:
+            path = Path(dep)
+
+            if path.is_absolute():
+                skip(dep, "must be relative")
+                continue
+
+            if ".." in path.parts:
+                skip(dep, "can't have `..` segments")
+                continue
+
+            try:
+                resolved = (project_root / path).resolve(strict=True)
+            except OSError:
+                skip(dep, "doesn't exist")
+                continue
+
+            try:
+                resolved.relative_to(project_root)
+            except ValueError:
+                skip(dep, "must be inside the project root")
+                continue
+
+            yield path.as_posix()
+
+    def get_outputs(self) -> list[str]:
+        if self.inplace:
+            return list(self.get_output_mapping().keys())
+        return sorted(_build_ext.get_outputs(self) + self.__get_stubs_outputs())
+
+    def get_output_mapping(self) -> dict[str, str]:
+        """See :class:`setuptools.commands.build.SubCommand`"""
+        mapping = self._get_output_mapping()
+        return dict(sorted(mapping, key=lambda x: x[0]))
+
+    def __get_stubs_outputs(self):
+        # assemble the base name for each extension that needs a stub
+        ns_ext_bases = (
+            os.path.join(self.build_lib, *ext._full_name.split('.'))
+            for ext in self.extensions
+            if ext._needs_stub
+        )
+        # pair each base with the extension
+        pairs = itertools.product(ns_ext_bases, self.__get_output_extensions())
+        return list(base + fnext for base, fnext in pairs)
+
+    def __get_output_extensions(self):
+        yield '.py'
+        yield '.pyc'
+        if self.get_finalized_command('build_py').optimize:
+            yield '.pyo'
+
+    def write_stub(self, output_dir, ext, compile=False) -> None:
+        stub_file = os.path.join(output_dir, *ext._full_name.split('.')) + '.py'
+        self._write_stub_file(stub_file, ext, compile)
+
+    def _write_stub_file(self, stub_file: str, ext: Extension, compile=False):
+        log.info("writing stub loader for %s to %s", ext._full_name, stub_file)
         if compile and os.path.exists(stub_file):
-            raise DistutilsError(stub_file+" already exists! Please delete.")
+            raise BaseError(stub_file + " already exists! Please delete.")
         if not self.dry_run:
-            f = open(stub_file,'w')
-            f.write('\n'.join([
-                "def __bootstrap__():",
-                "   global __bootstrap__, __file__, __loader__",
-                "   import sys, os, pkg_resources, imp"+if_dl(", dl"),
-                "   __file__ = pkg_resources.resource_filename(__name__,%r)"
-                   % os.path.basename(ext._file_name),
-                "   del __bootstrap__",
-                "   if '__loader__' in globals():",
-                "       del __loader__",
-                if_dl("   old_flags = sys.getdlopenflags()"),
-                "   old_dir = os.getcwd()",
-                "   try:",
-                "     os.chdir(os.path.dirname(__file__))",
-                if_dl("     sys.setdlopenflags(dl.RTLD_NOW)"),
-                "     imp.load_dynamic(__name__,__file__)",
-                "   finally:",
-                if_dl("     sys.setdlopenflags(old_flags)"),
-                "     os.chdir(old_dir)",
-                "__bootstrap__()",
-                "" # terminal \n
-            ]))
-            f.close()
+            with open(stub_file, 'w', encoding="utf-8") as f:
+                content = '\n'.join([
+                    "def __bootstrap__():",
+                    "   global __bootstrap__, __file__, __loader__",
+                    "   import sys, os, pkg_resources, importlib.util" + if_dl(", dl"),
+                    "   __file__ = pkg_resources.resource_filename"
+                    f"(__name__,{os.path.basename(ext._file_name)!r})",
+                    "   del __bootstrap__",
+                    "   if '__loader__' in globals():",
+                    "       del __loader__",
+                    if_dl("   old_flags = sys.getdlopenflags()"),
+                    "   old_dir = os.getcwd()",
+                    "   try:",
+                    "     os.chdir(os.path.dirname(__file__))",
+                    if_dl("     sys.setdlopenflags(dl.RTLD_NOW)"),
+                    "     spec = importlib.util.spec_from_file_location(",
+                    "                __name__, __file__)",
+                    "     mod = importlib.util.module_from_spec(spec)",
+                    "     spec.loader.exec_module(mod)",
+                    "   finally:",
+                    if_dl("     sys.setdlopenflags(old_flags)"),
+                    "     os.chdir(old_dir)",
+                    "__bootstrap__()",
+                    "",  # terminal \n
+                ])
+                f.write(content)
         if compile:
-            from distutils.util import byte_compile
-            byte_compile([stub_file], optimize=0,
-                         force=True, dry_run=self.dry_run)
-            optimize = self.get_finalized_command('install_lib').optimize
-            if optimize > 0:
-                byte_compile([stub_file], optimize=optimize,
-                             force=True, dry_run=self.dry_run)
-            if os.path.exists(stub_file) and not self.dry_run:
-                os.unlink(stub_file)
-
-
-if use_stubs or os.name=='nt':
+            self._compile_and_remove_stub(stub_file)
+
+    def _compile_and_remove_stub(self, stub_file: str):
+        from distutils.util import byte_compile
+
+        byte_compile([stub_file], optimize=0, force=True, dry_run=self.dry_run)
+        optimize = self.get_finalized_command('install_lib').optimize
+        if optimize > 0:
+            byte_compile(
+                [stub_file],
+                optimize=optimize,
+                force=True,
+                dry_run=self.dry_run,
+            )
+        if os.path.exists(stub_file) and not self.dry_run:
+            os.unlink(stub_file)
+
+
+if use_stubs or os.name == 'nt':
     # Build shared libraries
     #
-    def link_shared_object(self, objects, output_libname, output_dir=None,
-        libraries=None, library_dirs=None, runtime_library_dirs=None,
-        export_symbols=None, debug=0, extra_preargs=None,
-        extra_postargs=None, build_temp=None, target_lang=None
-    ):  self.link(
-            self.SHARED_LIBRARY, objects, output_libname,
-            output_dir, libraries, library_dirs, runtime_library_dirs,
-            export_symbols, debug, extra_preargs, extra_postargs,
-            build_temp, target_lang
+    def link_shared_object(
+        self,
+        objects,
+        output_libname,
+        output_dir=None,
+        libraries=None,
+        library_dirs=None,
+        runtime_library_dirs=None,
+        export_symbols=None,
+        debug: bool = False,
+        extra_preargs=None,
+        extra_postargs=None,
+        build_temp=None,
+        target_lang=None,
+    ) -> None:
+        self.link(
+            self.SHARED_LIBRARY,
+            objects,
+            output_libname,
+            output_dir,
+            libraries,
+            library_dirs,
+            runtime_library_dirs,
+            export_symbols,
+            debug,
+            extra_preargs,
+            extra_postargs,
+            build_temp,
+            target_lang,
         )
+
 else:
     # Build static libraries everywhere else
     libtype = 'static'
 
-    def link_shared_object(self, objects, output_libname, output_dir=None,
-        libraries=None, library_dirs=None, runtime_library_dirs=None,
-        export_symbols=None, debug=0, extra_preargs=None,
-        extra_postargs=None, build_temp=None, target_lang=None
-    ):
+    def link_shared_object(
+        self,
+        objects,
+        output_libname,
+        output_dir=None,
+        libraries=None,
+        library_dirs=None,
+        runtime_library_dirs=None,
+        export_symbols=None,
+        debug: bool = False,
+        extra_preargs=None,
+        extra_postargs=None,
+        build_temp=None,
+        target_lang=None,
+    ) -> None:
         # XXX we need to either disallow these attrs on Library instances,
-        #     or warn/abort here if set, or something...
-        #libraries=None, library_dirs=None, runtime_library_dirs=None,
-        #export_symbols=None, extra_preargs=None, extra_postargs=None,
-        #build_temp=None
-
-        assert output_dir is None   # distutils build_ext doesn't pass this
-        output_dir,filename = os.path.split(output_libname)
-        basename, ext = os.path.splitext(filename)
+        # or warn/abort here if set, or something...
+        # libraries=None, library_dirs=None, runtime_library_dirs=None,
+        # export_symbols=None, extra_preargs=None, extra_postargs=None,
+        # build_temp=None
+
+        assert output_dir is None  # distutils build_ext doesn't pass this
+        output_dir, filename = os.path.split(output_libname)
+        basename, _ext = os.path.splitext(filename)
         if self.library_filename("x").startswith('lib'):
             # strip 'lib' prefix; this is kludgy if some platform uses
             # a different prefix
             basename = basename[3:]
 
-        self.create_static_lib(
-            objects, basename, output_dir, debug, target_lang
-        )
-
-
+        self.create_static_lib(objects, basename, output_dir, debug, target_lang)
diff --git a/setuptools/command/build_py.py b/setuptools/command/build_py.py
index 79570bc2e4..2f6fcb7cdc 100644
--- a/setuptools/command/build_py.py
+++ b/setuptools/command/build_py.py
@@ -1,9 +1,33 @@
-import os.path, sys, fnmatch
-from distutils.command.build_py import build_py as _build_py
-from distutils.util import convert_path
+from __future__ import annotations
+
+import fnmatch
+import itertools
+import os
+import stat
+import textwrap
+from collections.abc import Iterable, Iterator
+from functools import partial
 from glob import glob
+from pathlib import Path
+
+from more_itertools import unique_everseen
+
+from .._path import StrPath, StrPathT
+from ..dist import Distribution
+from ..warnings import SetuptoolsDeprecationWarning
+
+import distutils.command.build_py as orig
+import distutils.errors
+from distutils.util import convert_path
+
+_IMPLICIT_DATA_FILES = ('*.pyi', 'py.typed')
 
-class build_py(_build_py):
+
+def make_writable(target) -> None:
+    os.chmod(target, os.stat(target).st_mode | stat.S_IWRITE)
+
+
+class build_py(orig.build_py):
     """Enhanced 'build_py' command that includes data files with packages
 
     The data files are specified via a 'package_data' argument to 'setup()'.
@@ -12,15 +36,38 @@ class build_py(_build_py):
     Also, this version of the 'build_py' command allows you to specify both
     'py_modules' and 'packages' in the same setup operation.
     """
+
+    distribution: Distribution  # override distutils.dist.Distribution with setuptools.dist.Distribution
+    editable_mode: bool = False
+    existing_egg_info_dir: StrPath | None = None  #: Private API, internal use only.
+
     def finalize_options(self):
-        _build_py.finalize_options(self)
+        orig.build_py.finalize_options(self)
         self.package_data = self.distribution.package_data
         self.exclude_package_data = self.distribution.exclude_package_data or {}
-        if 'data_files' in self.__dict__: del self.__dict__['data_files']
-
-    def run(self):
+        if 'data_files' in self.__dict__:
+            del self.__dict__['data_files']
+
+    def copy_file(  # type: ignore[override] # No overload, no bytes support
+        self,
+        infile: StrPath,
+        outfile: StrPathT,
+        preserve_mode: bool = True,
+        preserve_times: bool = True,
+        link: str | None = None,
+        level: object = 1,
+    ) -> tuple[StrPathT | str, bool]:
+        # Overwrite base class to allow using links
+        if link:
+            infile = str(Path(infile).resolve())
+            outfile = str(Path(outfile).resolve())  # type: ignore[assignment] # Re-assigning a str when outfile is StrPath is ok
+        return super().copy_file(  # pyright: ignore[reportReturnType] # pypa/distutils#309
+            infile, outfile, preserve_mode, preserve_times, link, level
+        )
+
+    def run(self) -> None:
         """Build modules, packages, and copy data files to build directory"""
-        if not self.py_modules and not self.packages:
+        if not (self.py_modules or self.packages) or self.editable_mode:
             return
 
         if self.py_modules:
@@ -32,94 +79,162 @@ def run(self):
 
         # Only compile actual .py files, using our base class' idea of what our
         # output files are.
-        self.byte_compile(_build_py.get_outputs(self, include_bytecode=0))
+        self.byte_compile(orig.build_py.get_outputs(self, include_bytecode=False))
 
-    def __getattr__(self,attr):
-        if attr=='data_files':  # lazily compute data files
-            self.data_files = files = self._get_data_files(); return files
-        return _build_py.__getattr__(self,attr)
+    def __getattr__(self, attr: str):
+        "lazily compute data files"
+        if attr == 'data_files':
+            self.data_files = self._get_data_files()
+            return self.data_files
+        return orig.build_py.__getattr__(self, attr)
 
     def _get_data_files(self):
         """Generate list of '(package,src_dir,build_dir,filenames)' tuples"""
         self.analyze_manifest()
-        data = []
-        for package in self.packages or ():
-            # Locate package source directory
-            src_dir = self.get_package_dir(package)
-
-            # Compute package build directory
-            build_dir = os.path.join(*([self.build_lib] + package.split('.')))
-
-            # Length of path to strip from found files
-            plen = len(src_dir)+1
-
-            # Strip directory from globbed filenames
-            filenames = [
-                file[plen:] for file in self.find_data_files(package, src_dir)
-                ]
-            data.append( (package, src_dir, build_dir, filenames) )
-        return data
+        return list(map(self._get_pkg_data_files, self.packages or ()))
+
+    def get_data_files_without_manifest(self):
+        """
+        Generate list of ``(package,src_dir,build_dir,filenames)`` tuples,
+        but without triggering any attempt to analyze or build the manifest.
+        """
+        # Prevent eventual errors from unset `manifest_files`
+        # (that would otherwise be set by `analyze_manifest`)
+        self.__dict__.setdefault('manifest_files', {})
+        return list(map(self._get_pkg_data_files, self.packages or ()))
+
+    def _get_pkg_data_files(self, package):
+        # Locate package source directory
+        src_dir = self.get_package_dir(package)
+
+        # Compute package build directory
+        build_dir = os.path.join(*([self.build_lib] + package.split('.')))
+
+        # Strip directory from globbed filenames
+        filenames = [
+            os.path.relpath(file, src_dir)
+            for file in self.find_data_files(package, src_dir)
+        ]
+        return package, src_dir, build_dir, filenames
 
     def find_data_files(self, package, src_dir):
         """Return filenames for package's data files in 'src_dir'"""
-        globs = (self.package_data.get('', [])
-                 + self.package_data.get(package, []))
-        files = self.manifest_files.get(package, [])[:]
-        for pattern in globs:
-            # Each pattern has to be converted to a platform-specific path
-            files.extend(glob(os.path.join(src_dir, convert_path(pattern))))
+        patterns = self._get_platform_patterns(
+            self.package_data,
+            package,
+            src_dir,
+            extra_patterns=_IMPLICIT_DATA_FILES,
+        )
+        globs_expanded = map(partial(glob, recursive=True), patterns)
+        # flatten the expanded globs into an iterable of matches
+        globs_matches = itertools.chain.from_iterable(globs_expanded)
+        glob_files = filter(os.path.isfile, globs_matches)
+        files = itertools.chain(
+            self.manifest_files.get(package, []),
+            glob_files,
+        )
         return self.exclude_data_files(package, src_dir, files)
 
-    def build_package_data(self):
-        """Copy data files into build directory"""
-        lastdir = None
+    def get_outputs(self, include_bytecode: bool = True) -> list[str]:  # type: ignore[override] # Using a real boolean instead of 0|1
+        """See :class:`setuptools.commands.build.SubCommand`"""
+        if self.editable_mode:
+            return list(self.get_output_mapping().keys())
+        return super().get_outputs(include_bytecode)
+
+    def get_output_mapping(self) -> dict[str, str]:
+        """See :class:`setuptools.commands.build.SubCommand`"""
+        mapping = itertools.chain(
+            self._get_package_data_output_mapping(),
+            self._get_module_mapping(),
+        )
+        return dict(sorted(mapping, key=lambda x: x[0]))
+
+    def _get_module_mapping(self) -> Iterator[tuple[str, str]]:
+        """Iterate over all modules producing (dest, src) pairs."""
+        for package, module, module_file in self.find_all_modules():
+            package = package.split('.')
+            filename = self.get_module_outfile(self.build_lib, package, module)
+            yield (filename, module_file)
+
+    def _get_package_data_output_mapping(self) -> Iterator[tuple[str, str]]:
+        """Iterate over package data producing (dest, src) pairs."""
         for package, src_dir, build_dir, filenames in self.data_files:
             for filename in filenames:
                 target = os.path.join(build_dir, filename)
-                self.mkpath(os.path.dirname(target))
-                self.copy_file(os.path.join(src_dir, filename), target)
+                srcfile = os.path.join(src_dir, filename)
+                yield (target, srcfile)
 
+    def build_package_data(self) -> None:
+        """Copy data files into build directory"""
+        for target, srcfile in self._get_package_data_output_mapping():
+            self.mkpath(os.path.dirname(target))
+            _outf, _copied = self.copy_file(srcfile, target)
+            make_writable(target)
 
-    def analyze_manifest(self):
-        self.manifest_files = mf = {}
+    def analyze_manifest(self) -> None:
+        self.manifest_files: dict[str, list[str]] = {}
         if not self.distribution.include_package_data:
             return
-        src_dirs = {}
+        src_dirs: dict[str, str] = {}
         for package in self.packages or ():
             # Locate package source directory
             src_dirs[assert_relative(self.get_package_dir(package))] = package
 
-        self.run_command('egg_info')
-        ei_cmd = self.get_finalized_command('egg_info')
-        for path in ei_cmd.filelist.files:
-            d,f = os.path.split(assert_relative(path))
+        if (
+            self.existing_egg_info_dir
+            and Path(self.existing_egg_info_dir, "SOURCES.txt").exists()
+        ):
+            egg_info_dir = self.existing_egg_info_dir
+            manifest = Path(egg_info_dir, "SOURCES.txt")
+            files = manifest.read_text(encoding="utf-8").splitlines()
+        else:
+            self.run_command('egg_info')
+            ei_cmd = self.get_finalized_command('egg_info')
+            egg_info_dir = ei_cmd.egg_info
+            files = ei_cmd.filelist.files
+
+        check = _IncludePackageDataAbuse()
+        for path in self._filter_build_files(files, egg_info_dir):
+            d, f = os.path.split(assert_relative(path))
             prev = None
             oldf = f
-            while d and d!=prev and d not in src_dirs:
+            while d and d != prev and d not in src_dirs:
                 prev = d
                 d, df = os.path.split(d)
                 f = os.path.join(df, f)
             if d in src_dirs:
-                if path.endswith('.py') and f==oldf:
-                    continue    # it's a module, not data
-                mf.setdefault(src_dirs[d],[]).append(path)
-
-    def get_data_files(self): pass  # kludge 2.4 for lazy computation
-
-    if sys.version<"2.4":    # Python 2.4 already has this code
-        def get_outputs(self, include_bytecode=1):
-            """Return complete list of files copied to the build directory
-
-            This includes both '.py' files and data files, as well as '.pyc'
-            and '.pyo' files if 'include_bytecode' is true.  (This method is
-            needed for the 'install_lib' command to do its job properly, and to
-            generate a correct installation manifest.)
-            """
-            return _build_py.get_outputs(self, include_bytecode) + [
-                os.path.join(build_dir, filename)
-                for package, src_dir, build_dir,filenames in self.data_files
-                for filename in filenames
-                ]
+                if f == oldf:
+                    if check.is_module(f):
+                        continue  # it's a module, not data
+                else:
+                    importable = check.importable_subpackage(src_dirs[d], f)
+                    if importable:
+                        check.warn(importable)
+                self.manifest_files.setdefault(src_dirs[d], []).append(path)
+
+    def _filter_build_files(
+        self, files: Iterable[str], egg_info: StrPath
+    ) -> Iterator[str]:
+        """
+        ``build_meta`` may try to create egg_info outside of the project directory,
+        and this can be problematic for certain plugins (reported in issue #3500).
+
+        Extensions might also include between their sources files created on the
+        ``build_lib`` and ``build_temp`` directories.
+
+        This function should filter this case of invalid files out.
+        """
+        build = self.get_finalized_command("build")
+        build_dirs = (egg_info, self.build_lib, build.build_temp, build.build_base)
+        norm_dirs = [os.path.normpath(p) for p in build_dirs if p]
+
+        for file in files:
+            norm_path = os.path.normpath(file)
+            if not os.path.isabs(file) or all(d not in norm_path for d in norm_dirs):
+                yield file
+
+    def get_data_files(self) -> None:
+        pass  # Lazily compute data files in _get_data_files() function.
 
     def check_package(self, package, package_dir):
         """Check namespace packages' __init__ for declare_namespace"""
@@ -128,78 +243,158 @@ def check_package(self, package, package_dir):
         except KeyError:
             pass
 
-        init_py = _build_py.check_package(self, package, package_dir)
+        init_py = orig.build_py.check_package(self, package, package_dir)
         self.packages_checked[package] = init_py
 
         if not init_py or not self.distribution.namespace_packages:
             return init_py
 
         for pkg in self.distribution.namespace_packages:
-            if pkg==package or pkg.startswith(package+'.'):
+            if pkg == package or pkg.startswith(package + '.'):
                 break
         else:
             return init_py
 
-        f = open(init_py,'rU')
-        if 'declare_namespace' not in f.read():
-            from distutils import log
-            log.warn(
-               "WARNING: %s is a namespace package, but its __init__.py does\n"
-               "not declare_namespace(); setuptools 0.7 will REQUIRE this!\n"
-               '(See the setuptools manual under "Namespace Packages" for '
-               "details.)\n", package
+        with open(init_py, 'rb') as f:
+            contents = f.read()
+        if b'declare_namespace' not in contents:
+            raise distutils.errors.DistutilsError(
+                f"Namespace package problem: {package} is a namespace package, but "
+                "its\n__init__.py does not call declare_namespace()! Please "
+                'fix it.\n(See the setuptools manual under '
+                '"Namespace Packages" for details.)\n"'
             )
-        f.close()
         return init_py
 
     def initialize_options(self):
-        self.packages_checked={}
-        _build_py.initialize_options(self)
-
-
-
-
-
+        self.packages_checked = {}
+        orig.build_py.initialize_options(self)
+        self.editable_mode = False
+        self.existing_egg_info_dir = None
 
+    def get_package_dir(self, package):
+        res = orig.build_py.get_package_dir(self, package)
+        if self.distribution.src_root is not None:
+            return os.path.join(self.distribution.src_root, res)
+        return res
 
     def exclude_data_files(self, package, src_dir, files):
         """Filter filenames for package's data files in 'src_dir'"""
-        globs = (self.exclude_package_data.get('', [])
-                 + self.exclude_package_data.get(package, []))
-        bad = []
-        for pattern in globs:
-            bad.extend(
-                fnmatch.filter(
-                    files, os.path.join(src_dir, convert_path(pattern))
-                )
-            )
-        bad = dict.fromkeys(bad)
-        seen = {}
-        return [
-            f for f in files if f not in bad
-                and f not in seen and seen.setdefault(f,1)  # ditch dupes
-        ]
+        files = list(files)
+        patterns = self._get_platform_patterns(
+            self.exclude_package_data,
+            package,
+            src_dir,
+        )
+        match_groups = (fnmatch.filter(files, pattern) for pattern in patterns)
+        # flatten the groups of matches into an iterable of matches
+        matches = itertools.chain.from_iterable(match_groups)
+        bad = set(matches)
+        keepers = (fn for fn in files if fn not in bad)
+        # ditch dupes
+        return list(unique_everseen(keepers))
+
+    @staticmethod
+    def _get_platform_patterns(spec, package, src_dir, extra_patterns=()):
+        """
+        yield platform-specific path patterns (suitable for glob
+        or fn_match) from a glob-based spec (such as
+        self.package_data or self.exclude_package_data)
+        matching package in src_dir.
+        """
+        raw_patterns = itertools.chain(
+            extra_patterns,
+            spec.get('', []),
+            spec.get(package, []),
+        )
+        return (
+            # Each pattern has to be converted to a platform-specific path
+            os.path.join(src_dir, convert_path(pattern))
+            for pattern in raw_patterns
+        )
 
 
 def assert_relative(path):
     if not os.path.isabs(path):
         return path
     from distutils.errors import DistutilsSetupError
-    raise DistutilsSetupError(
-"""Error: setup script specifies an absolute path:
 
-    %s
+    msg = (
+        textwrap.dedent(
+            """
+        Error: setup script specifies an absolute path:
+
+            %s
 
-setup() arguments must *always* be /-separated paths relative to the
-setup.py directory, *never* absolute paths.
-""" % path
+        setup() arguments must *always* be /-separated paths relative to the
+        setup.py directory, *never* absolute paths.
+        """
+        ).lstrip()
+        % path
     )
+    raise DistutilsSetupError(msg)
+
+
+class _IncludePackageDataAbuse:
+    """Inform users that package or module is included as 'data file'"""
+
+    class _Warning(SetuptoolsDeprecationWarning):
+        _SUMMARY = """
+        Package {importable!r} is absent from the `packages` configuration.
+        """
+
+        _DETAILS = """
+        ############################
+        # Package would be ignored #
+        ############################
+        Python recognizes {importable!r} as an importable package[^1],
+        but it is absent from setuptools' `packages` configuration.
+
+        This leads to an ambiguous overall configuration. If you want to distribute this
+        package, please make sure that {importable!r} is explicitly added
+        to the `packages` configuration field.
+
+        Alternatively, you can also rely on setuptools' discovery methods
+        (for example by using `find_namespace_packages(...)`/`find_namespace:`
+        instead of `find_packages(...)`/`find:`).
+
+        You can read more about "package discovery" on setuptools documentation page:
+
+        - https://setuptools.pypa.io/en/latest/userguide/package_discovery.html
 
+        If you don't want {importable!r} to be distributed and are
+        already explicitly excluding {importable!r} via
+        `find_namespace_packages(...)/find_namespace` or `find_packages(...)/find`,
+        you can try to use `exclude_package_data`, or `include-package-data=False` in
+        combination with a more fine grained `package-data` configuration.
 
+        You can read more about "package data files" on setuptools documentation page:
 
+        - https://setuptools.pypa.io/en/latest/userguide/datafiles.html
 
 
+        [^1]: For Python, any directory (with suitable naming) can be imported,
+              even if it does not contain any `.py` files.
+              On the other hand, currently there is no concept of package data
+              directory, all directories are treated like packages.
+        """
+        # _DUE_DATE: still not defined as this is particularly controversial.
+        # Warning initially introduced in May 2022. See issue #3340 for discussion.
 
+    def __init__(self):
+        self._already_warned = set()
 
+    def is_module(self, file):
+        return file.endswith(".py") and file[: -len(".py")].isidentifier()
 
+    def importable_subpackage(self, parent, file):
+        pkg = Path(file).parent
+        parts = list(itertools.takewhile(str.isidentifier, pkg.parts))
+        if parts:
+            return ".".join([parent, *parts])
+        return None
 
+    def warn(self, importable):
+        if importable not in self._already_warned:
+            self._Warning.emit(importable=importable)
+            self._already_warned.add(importable)
diff --git a/setuptools/command/develop.py b/setuptools/command/develop.py
old mode 100755
new mode 100644
index f128b8030b..42df9a10ff
--- a/setuptools/command/develop.py
+++ b/setuptools/command/develop.py
@@ -1,164 +1,55 @@
-from setuptools.command.easy_install import easy_install
-from distutils.util import convert_path
-from pkg_resources import Distribution, PathMetadata, normalize_path
-from distutils import log
-from distutils.errors import *
-import sys, os, setuptools, glob
+import site
+import subprocess
+import sys
 
-class develop(easy_install):
-    """Set up package for development"""
+from setuptools import Command
+from setuptools.warnings import SetuptoolsDeprecationWarning
 
-    description = "install package in 'development mode'"
 
-    user_options = easy_install.user_options + [
-        ("uninstall", "u", "Uninstall this source package"),
-        ("egg-path=", None, "Set the path to be used in the .egg-link file"),
-    ]
+class develop(Command):
+    """Set up package for development"""
 
-    boolean_options = easy_install.boolean_options + ['uninstall']
+    user_options = [
+        ("install-dir=", "d", "install package to DIR"),
+        ('no-deps', 'N', "don't install dependencies"),
+        ('user', None, f"install in user site-package '{site.USER_SITE}'"),
+        ('prefix=', None, "installation prefix"),
+        ("index-url=", "i", "base URL of Python Package Index"),
+    ]
+    boolean_options = [
+        'no-deps',
+        'user',
+    ]
 
-    command_consumes_arguments = False  # override base
+    install_dir = None
+    no_deps = False
+    user = False
+    prefix = None
+    index_url = None
 
     def run(self):
-        if self.uninstall:
-            self.multi_version = True
-            self.uninstall_link()
-        else:
-            self.install_for_development()
-        self.warn_deprecated_options()
-
-    def initialize_options(self):
-        self.uninstall = None
-        self.egg_path = None
-        easy_install.initialize_options(self)
-        self.setup_path = None
-        self.always_copy_from = '.'   # always copy eggs installed in curdir
-
-
-
-
-
-
-    def finalize_options(self):
-        ei = self.get_finalized_command("egg_info")
-        if ei.broken_egg_info:
-            raise DistutilsError(
-            "Please rename %r to %r before using 'develop'"
-            % (ei.egg_info, ei.broken_egg_info)
-            )
-        self.args = [ei.egg_name]       
-        easy_install.finalize_options(self)
-        # pick up setup-dir .egg files only: no .egg-info
-        self.package_index.scan(glob.glob('*.egg'))
-
-        self.egg_link = os.path.join(self.install_dir, ei.egg_name+'.egg-link')
-        self.egg_base = ei.egg_base
-        if self.egg_path is None:
-            self.egg_path = os.path.abspath(ei.egg_base)
-
-        target = normalize_path(self.egg_base)
-        if normalize_path(os.path.join(self.install_dir, self.egg_path)) != target:
-            raise DistutilsOptionError(
-                "--egg-path must be a relative path from the install"
-                " directory to "+target
-        )
-        
-        # Make a distribution for the package's source
-        self.dist = Distribution(
-            target,
-            PathMetadata(target, os.path.abspath(ei.egg_info)),
-            project_name = ei.egg_name
+        cmd = (
+            [sys.executable, '-m', 'pip', 'install', '-e', '.', '--use-pep517']
+            + ['--target', self.install_dir] * bool(self.install_dir)
+            + ['--no-deps'] * self.no_deps
+            + ['--user'] * self.user
+            + ['--prefix', self.prefix] * bool(self.prefix)
+            + ['--index-url', self.index_url] * bool(self.prefix)
         )
+        subprocess.check_call(cmd)
 
-        p = self.egg_base.replace(os.sep,'/')
-        if p!= os.curdir:
-            p = '../' * (p.count('/')+1)
-        self.setup_path = p
-        p = normalize_path(os.path.join(self.install_dir, self.egg_path, p))
-        if  p != normalize_path(os.curdir):
-            raise DistutilsOptionError(
-                "Can't get a consistent path to setup script from"
-                " installation directory", p, normalize_path(os.curdir))
-
-    def install_for_development(self):
-        # Ensure metadata is up-to-date
-        self.run_command('egg_info')
-        # Build extensions in-place
-        self.reinitialize_command('build_ext', inplace=1)
-        self.run_command('build_ext')
-        self.install_site_py()  # ensure that target dir is site-safe
-        if setuptools.bootstrap_install_from:
-            self.easy_install(setuptools.bootstrap_install_from)
-            setuptools.bootstrap_install_from = None
-
-        # create an .egg-link in the installation dir, pointing to our egg
-        log.info("Creating %s (link to %s)", self.egg_link, self.egg_base)
-        if not self.dry_run:
-            f = open(self.egg_link,"w")
-            f.write(self.egg_path + "\n" + self.setup_path)
-            f.close()
-        # postprocess the installed distro, fixing up .pth, installing scripts,
-        # and handling requirements
-        self.process_distribution(None, self.dist, not self.no_deps)
-
-
-    def uninstall_link(self):
-        if os.path.exists(self.egg_link):
-            log.info("Removing %s (link to %s)", self.egg_link, self.egg_base)
-            contents = [line.rstrip() for line in file(self.egg_link)]
-            if contents not in ([self.egg_path], [self.egg_path, self.setup_path]):
-                log.warn("Link points to %s: uninstall aborted", contents)
-                return
-            if not self.dry_run:
-                os.unlink(self.egg_link)
-        if not self.dry_run:
-            self.update_pth(self.dist)  # remove any .pth link to us
-        if self.distribution.scripts:
-            # XXX should also check for entry point scripts!
-            log.warn("Note: you must uninstall or replace scripts manually!")
-
-
-
-
-
-    def install_egg_scripts(self, dist):
-        if dist is not self.dist:
-            # Installing a dependency, so fall back to normal behavior
-            return easy_install.install_egg_scripts(self,dist)
-
-        # create wrapper scripts in the script dir, pointing to dist.scripts
-
-        # new-style...
-        self.install_wrapper_scripts(dist)  
-
-        # ...and old-style
-        for script_name in self.distribution.scripts or []:
-            script_path = os.path.abspath(convert_path(script_name))
-            script_name = os.path.basename(script_path)
-            f = open(script_path,'rU')
-            script_text = f.read()
-            f.close()
-            self.install_script(dist, script_name, script_text, script_path)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+    def initialize_options(self):
+        DevelopDeprecationWarning.emit()
 
+    def finalize_options(self) -> None:
+        pass
 
 
+class DevelopDeprecationWarning(SetuptoolsDeprecationWarning):
+    _SUMMARY = "develop command is deprecated."
+    _DETAILS = """
+    Please avoid running ``setup.py`` and ``develop``.
+    Instead, use standards-based tools like pip or uv.
+    """
+    _SEE_URL = "https://github.com/pypa/setuptools/issues/917"
+    _DUE_DATE = 2025, 10, 31
diff --git a/setuptools/command/dist_info.py b/setuptools/command/dist_info.py
new file mode 100644
index 0000000000..dca01ff0ce
--- /dev/null
+++ b/setuptools/command/dist_info.py
@@ -0,0 +1,103 @@
+"""
+Create a dist_info directory
+As defined in the wheel specification
+"""
+
+import os
+import shutil
+from contextlib import contextmanager
+from pathlib import Path
+from typing import cast
+
+from .. import _normalization
+from .._shutil import rmdir as _rm
+from .egg_info import egg_info as egg_info_cls
+
+from distutils import log
+from distutils.core import Command
+
+
+class dist_info(Command):
+    """
+    This command is private and reserved for internal use of setuptools,
+    users should rely on ``setuptools.build_meta`` APIs.
+    """
+
+    description = "DO NOT CALL DIRECTLY, INTERNAL ONLY: create .dist-info directory"
+
+    user_options = [
+        (
+            'output-dir=',
+            'o',
+            "directory inside of which the .dist-info will be"
+            "created [default: top of the source tree]",
+        ),
+        ('tag-date', 'd', "Add date stamp (e.g. 20050528) to version number"),
+        ('tag-build=', 'b', "Specify explicit tag to add to version number"),
+        ('no-date', 'D', "Don't include date stamp [default]"),
+        ('keep-egg-info', None, "*TRANSITIONAL* will be removed in the future"),
+    ]
+
+    boolean_options = ['tag-date', 'keep-egg-info']
+    negative_opt = {'no-date': 'tag-date'}
+
+    def initialize_options(self):
+        self.output_dir = None
+        self.name = None
+        self.dist_info_dir = None
+        self.tag_date = None
+        self.tag_build = None
+        self.keep_egg_info = False
+
+    def finalize_options(self) -> None:
+        dist = self.distribution
+        project_dir = dist.src_root or os.curdir
+        self.output_dir = Path(self.output_dir or project_dir)
+
+        egg_info = cast(egg_info_cls, self.reinitialize_command("egg_info"))
+        egg_info.egg_base = str(self.output_dir)
+
+        if self.tag_date:
+            egg_info.tag_date = self.tag_date
+        else:
+            self.tag_date = egg_info.tag_date
+
+        if self.tag_build:
+            egg_info.tag_build = self.tag_build
+        else:
+            self.tag_build = egg_info.tag_build
+
+        egg_info.finalize_options()
+        self.egg_info = egg_info
+
+        name = _normalization.safer_name(dist.get_name())
+        version = _normalization.safer_best_effort_version(dist.get_version())
+        self.name = f"{name}-{version}"
+        self.dist_info_dir = os.path.join(self.output_dir, f"{self.name}.dist-info")
+
+    @contextmanager
+    def _maybe_bkp_dir(self, dir_path: str, requires_bkp: bool):
+        if requires_bkp:
+            bkp_name = f"{dir_path}.__bkp__"
+            _rm(bkp_name, ignore_errors=True)
+            shutil.copytree(dir_path, bkp_name, dirs_exist_ok=True, symlinks=True)
+            try:
+                yield
+            finally:
+                _rm(dir_path, ignore_errors=True)
+                shutil.move(bkp_name, dir_path)
+        else:
+            yield
+
+    def run(self) -> None:
+        self.output_dir.mkdir(parents=True, exist_ok=True)
+        self.egg_info.run()
+        egg_info_dir = self.egg_info.egg_info
+        assert os.path.isdir(egg_info_dir), ".egg-info dir should have been created"
+
+        log.info(f"creating '{os.path.abspath(self.dist_info_dir)}'")
+        bdist_wheel = self.get_finalized_command('bdist_wheel')
+
+        # TODO: if bdist_wheel if merged into setuptools, just add "keep_egg_info" there
+        with self._maybe_bkp_dir(egg_info_dir, self.keep_egg_info):
+            bdist_wheel.egg2dist(egg_info_dir, self.dist_info_dir)
diff --git a/setuptools/command/easy_install.py b/setuptools/command/easy_install.py
old mode 100755
new mode 100644
index 228a9a696c..5b96201dca
--- a/setuptools/command/easy_install.py
+++ b/setuptools/command/easy_install.py
@@ -1,5 +1,4 @@
-#!python
-"""\
+"""
 Easy Install
 ------------
 
@@ -7,40 +6,113 @@
 packages.  For detailed documentation, see the accompanying EasyInstall.txt
 file, or visit the `EasyInstall home page`__.
 
-__ http://peak.telecommunity.com/DevCenter/EasyInstall
+__ https://setuptools.pypa.io/en/latest/deprecated/easy_install.html
+
 """
-import sys, os.path, zipimport, shutil, tempfile, zipfile, re, stat, random
+
+from __future__ import annotations
+
+import configparser
+import contextlib
+import io
+import os
+import random
+import re
+import shlex
+import shutil
+import site
+import stat
+import struct
+import subprocess
+import sys
+import sysconfig
+import tempfile
+import textwrap
+import warnings
+import zipfile
+import zipimport
+from collections.abc import Iterable
 from glob import glob
+from sysconfig import get_path
+from typing import TYPE_CHECKING, NoReturn, TypedDict
+
+from jaraco.text import yield_lines
+
+import pkg_resources
+from pkg_resources import (
+    DEVELOP_DIST,
+    Distribution,
+    DistributionNotFound,
+    EggMetadata,
+    Environment,
+    PathMetadata,
+    Requirement,
+    VersionConflict,
+    WorkingSet,
+    find_distributions,
+    get_distribution,
+    normalize_path,
+    resource_string,
+)
 from setuptools import Command
-from setuptools.sandbox import run_setup
-from distutils import log, dir_util
-from distutils.sysconfig import get_python_lib
-from distutils.errors import DistutilsArgError, DistutilsOptionError, \
-    DistutilsError
 from setuptools.archive_util import unpack_archive
-from setuptools.package_index import PackageIndex, parse_bdist_wininst
-from setuptools.package_index import URL_SCHEME
-from setuptools.command import bdist_egg, egg_info
-from pkg_resources import *
-sys_executable = os.path.normpath(sys.executable)
+from setuptools.command import bdist_egg, setopt
+from setuptools.package_index import URL_SCHEME, PackageIndex, parse_requirement_arg
+from setuptools.warnings import SetuptoolsDeprecationWarning, SetuptoolsWarning
+from setuptools.wheel import Wheel
+
+from .._path import ensure_directory
+from .._shutil import attempt_chmod_verbose as chmod, rmtree as _rmtree
+from ..compat import py39, py312
+
+from distutils import dir_util, log
+from distutils.command import install
+from distutils.command.build_scripts import first_line_re
+from distutils.errors import (
+    DistutilsArgError,
+    DistutilsError,
+    DistutilsOptionError,
+    DistutilsPlatformError,
+)
+from distutils.util import convert_path, get_platform, subst_vars
+
+if TYPE_CHECKING:
+    from typing_extensions import Self
+
+# Turn on PEP440Warnings
+warnings.filterwarnings("default", category=pkg_resources.PEP440Warning)
 
 __all__ = [
-    'samefile', 'easy_install', 'PthDistributions', 'extract_wininst_cfg',
-    'main', 'get_exe_prefixes',
+    'easy_install',
+    'PthDistributions',
+    'extract_wininst_cfg',
+    'get_exe_prefixes',
 ]
 
-def samefile(p1,p2):
-    if hasattr(os.path,'samefile') and (
-        os.path.exists(p1) and os.path.exists(p2)
-    ):
-        return os.path.samefile(p1,p2)
-    return (
-        os.path.normpath(os.path.normcase(p1)) ==
-        os.path.normpath(os.path.normcase(p2))
-    )
+
+def is_64bit():
+    return struct.calcsize("P") == 8
+
+
+def _to_bytes(s):
+    return s.encode('utf8')
+
+
+def isascii(s):
+    try:
+        s.encode('ascii')
+    except UnicodeError:
+        return False
+    return True
+
+
+def _one_liner(text):
+    return textwrap.dedent(text).strip().replace('\n', '; ')
+
 
 class easy_install(Command):
     """Manage a download/build/install process"""
+
     description = "Find/get/install Python packages"
     command_consumes_arguments = True
 
@@ -55,32 +127,50 @@ class easy_install(Command):
         ("always-copy", "a", "Copy all needed packages to install dir"),
         ("index-url=", "i", "base URL of Python Package Index"),
         ("find-links=", "f", "additional URL(s) to search for packages"),
-        ("delete-conflicting", "D", "no longer needed; don't use this"),
-        ("ignore-conflicts-at-my-risk", None,
-            "no longer needed; don't use this"),
-        ("build-directory=", "b",
-            "download/extract/build in DIR; keep the results"),
-        ('optimize=', 'O',
-         "also compile with optimization: -O1 for \"python -O\", "
-         "-O2 for \"python -OO\", and -O0 to disable [default: -O0]"),
-        ('record=', None,
-         "filename in which to record list of installed files"),
+        ("build-directory=", "b", "download/extract/build in DIR; keep the results"),
+        (
+            'optimize=',
+            'O',
+            'also compile with optimization: -O1 for "python -O", '
+            '-O2 for "python -OO", and -O0 to disable [default: -O0]',
+        ),
+        ('record=', None, "filename in which to record list of installed files"),
         ('always-unzip', 'Z', "don't install as a zipfile, no matter what"),
-        ('site-dirs=','S',"list of directories where .pth files work"),
+        ('site-dirs=', 'S', "list of directories where .pth files work"),
         ('editable', 'e', "Install specified packages in editable form"),
         ('no-deps', 'N', "don't install dependencies"),
         ('allow-hosts=', 'H', "pattern(s) that hostnames must match"),
         ('local-snapshots-ok', 'l', "allow building eggs from local checkouts"),
+        ('version', None, "print version information and exit"),
+        (
+            'no-find-links',
+            None,
+            "Don't load find-links defined in packages being installed",
+        ),
+        ('user', None, f"install in user site-package '{site.USER_SITE}'"),
     ]
     boolean_options = [
-        'zip-ok', 'multi-version', 'exclude-scripts', 'upgrade', 'always-copy',
-        'delete-conflicting', 'ignore-conflicts-at-my-risk', 'editable',
-        'no-deps', 'local-snapshots-ok',
+        'zip-ok',
+        'multi-version',
+        'exclude-scripts',
+        'upgrade',
+        'always-copy',
+        'editable',
+        'no-deps',
+        'local-snapshots-ok',
+        'version',
+        'user',
     ]
+
     negative_opt = {'always-unzip': 'zip-ok'}
     create_index = PackageIndex
 
     def initialize_options(self):
+        EasyInstallDeprecationWarning.emit()
+
+        # the --user option seems to be an opt-in one,
+        # so the default should be False.
+        self.user = False
         self.zip_ok = self.local_snapshots_ok = None
         self.install_dir = self.script_dir = self.exclude_scripts = None
         self.index_url = None
@@ -91,15 +181,24 @@ def initialize_options(self):
         self.upgrade = self.always_copy = self.multi_version = None
         self.editable = self.no_deps = self.allow_hosts = None
         self.root = self.prefix = self.no_report = None
+        self.version = None
+        self.install_purelib = None  # for pure module distributions
+        self.install_platlib = None  # non-pure (dists w/ extensions)
+        self.install_headers = None  # for C/C++ headers
+        self.install_lib = None  # set to either purelib or platlib
+        self.install_scripts = None
+        self.install_data = None
+        self.install_base = None
+        self.install_platbase = None
+        self.install_userbase = site.USER_BASE
+        self.install_usersite = site.USER_SITE
+        self.no_find_links = None
 
         # Options not specifiable via command line
         self.package_index = None
         self.pth_file = self.always_copy_from = None
-        self.delete_conflicting = None
-        self.ignore_conflicts_at_my_risk = None
         self.site_dirs = None
         self.installed_projects = {}
-        self.sitepy_installed = False
         # Always read easy_install options, even if we are subclassed, or have
         # an independent instance created.  This ensures that defaults will
         # always come from the standard configuration file(s)' "easy_install"
@@ -111,52 +210,111 @@ def initialize_options(self):
             self, self.distribution.get_option_dict('easy_install')
         )
 
-    def delete_blockers(self, blockers):
-        for filename in blockers:
-            if os.path.exists(filename) or os.path.islink(filename):
-                log.info("Deleting %s", filename)
-                if not self.dry_run:
-                    if os.path.isdir(filename) and not os.path.islink(filename):
-                        rmtree(filename)
-                    else:
-                        os.unlink(filename)
+    def delete_blockers(self, blockers) -> None:
+        extant_blockers = (
+            filename
+            for filename in blockers
+            if os.path.exists(filename) or os.path.islink(filename)
+        )
+        list(map(self._delete_path, extant_blockers))
 
-    def finalize_options(self):
-        self._expand('install_dir','script_dir','build_directory','site_dirs')
+    def _delete_path(self, path):
+        log.info("Deleting %s", path)
+        if self.dry_run:
+            return
+
+        is_tree = os.path.isdir(path) and not os.path.islink(path)
+        remover = _rmtree if is_tree else os.unlink
+        remover(path)
+
+    @staticmethod
+    def _render_version():
+        """
+        Render the Setuptools version and installation details, then exit.
+        """
+        ver = f'{sys.version_info.major}.{sys.version_info.minor}'
+        dist = get_distribution('setuptools')
+        print(f'setuptools {dist.version} from {dist.location} (Python {ver})')
+        raise SystemExit
+
+    def finalize_options(self) -> None:  # noqa: C901  # is too complex (25)  # FIXME
+        self.version and self._render_version()
+
+        py_version = sys.version.split()[0]
+
+        self.config_vars = dict(sysconfig.get_config_vars())
+
+        self.config_vars.update({
+            'dist_name': self.distribution.get_name(),
+            'dist_version': self.distribution.get_version(),
+            'dist_fullname': self.distribution.get_fullname(),
+            'py_version': py_version,
+            'py_version_short': f'{sys.version_info.major}.{sys.version_info.minor}',
+            'py_version_nodot': f'{sys.version_info.major}{sys.version_info.minor}',
+            'sys_prefix': self.config_vars['prefix'],
+            'sys_exec_prefix': self.config_vars['exec_prefix'],
+            # Only POSIX systems have abiflags
+            'abiflags': getattr(sys, 'abiflags', ''),
+            # Only python 3.9+ has platlibdir
+            'platlibdir': getattr(sys, 'platlibdir', 'lib'),
+        })
+        with contextlib.suppress(AttributeError):
+            # only for distutils outside stdlib
+            self.config_vars.update({
+                'implementation_lower': install._get_implementation().lower(),
+                'implementation': install._get_implementation(),
+            })
+
+        # pypa/distutils#113 Python 3.9 compat
+        self.config_vars.setdefault(
+            'py_version_nodot_plat',
+            getattr(sys, 'windir', '').replace('.', ''),
+        )
+
+        self.config_vars['userbase'] = self.install_userbase
+        self.config_vars['usersite'] = self.install_usersite
+        if self.user and not site.ENABLE_USER_SITE:
+            log.warn("WARNING: The user site-packages directory is disabled.")
+
+        self._fix_install_dir_for_user_site()
+
+        self.expand_basedirs()
+        self.expand_dirs()
+
+        self._expand(
+            'install_dir',
+            'script_dir',
+            'build_directory',
+            'site_dirs',
+        )
         # If a non-default installation directory was specified, default the
         # script directory to match it.
         if self.script_dir is None:
             self.script_dir = self.install_dir
 
+        if self.no_find_links is None:
+            self.no_find_links = False
+
         # Let install_dir get set by install_lib command, which in turn
         # gets its info from the install command, and takes into account
         # --prefix and --home and all that other crud.
-        self.set_undefined_options('install_lib',
-            ('install_dir','install_dir')
-        )
+        self.set_undefined_options('install_lib', ('install_dir', 'install_dir'))
         # Likewise, set default script_dir from 'install_scripts.install_dir'
-        self.set_undefined_options('install_scripts',
-            ('install_dir', 'script_dir')
-        )
+        self.set_undefined_options('install_scripts', ('install_dir', 'script_dir'))
+
+        if self.user and self.install_purelib:
+            self.install_dir = self.install_purelib
+            self.script_dir = self.install_scripts
         # default --record from the install command
         self.set_undefined_options('install', ('record', 'record'))
-        normpath = map(normalize_path, sys.path)
         self.all_site_dirs = get_site_dirs()
-        if self.site_dirs is not None:
-            site_dirs = [
-                os.path.expanduser(s.strip()) for s in self.site_dirs.split(',')
-            ]
-            for d in site_dirs:
-                if not os.path.isdir(d):
-                    log.warn("%s (in --site-dirs) does not exist", d)
-                elif normalize_path(d) not in normpath:
-                    raise DistutilsOptionError(
-                        d+" (in --site-dirs) is not on sys.path"
-                    )
-                else:
-                    self.all_site_dirs.append(normalize_path(d))
-        if not self.editable: self.check_site_dir()
-        self.index_url = self.index_url or "http://pypi.python.org/simple"
+        self.all_site_dirs.extend(self._process_site_dirs(self.site_dirs))
+
+        if not self.editable:
+            self.check_site_dir()
+        default_index = os.getenv("__EASYINSTALL_INDEX", "https://pypi.org/simple/")
+        # ^ Private API for testing purposes only
+        self.index_url = self.index_url or default_index
         self.shadow_path = self.all_site_dirs[:]
         for path_item in self.install_dir, normalize_path(self.script_dir):
             if path_item not in self.shadow_path:
@@ -168,62 +326,104 @@ def finalize_options(self):
             hosts = ['*']
         if self.package_index is None:
             self.package_index = self.create_index(
-                self.index_url, search_path = self.shadow_path, hosts=hosts,
+                self.index_url,
+                search_path=self.shadow_path,
+                hosts=hosts,
             )
-        self.local_index = Environment(self.shadow_path+sys.path)
+        self.local_index = Environment(self.shadow_path + sys.path)
 
         if self.find_links is not None:
-            if isinstance(self.find_links, basestring):
+            if isinstance(self.find_links, str):
                 self.find_links = self.find_links.split()
         else:
             self.find_links = []
         if self.local_snapshots_ok:
-            self.package_index.scan_egg_links(self.shadow_path+sys.path)
-        self.package_index.add_find_links(self.find_links)
-        self.set_undefined_options('install_lib', ('optimize','optimize'))
-        if not isinstance(self.optimize,int):
-            try:
-                self.optimize = int(self.optimize)
-                if not (0 <= self.optimize <= 2): raise ValueError
-            except ValueError:
-                raise DistutilsOptionError("--optimize must be 0, 1, or 2")
-
-        if self.delete_conflicting and self.ignore_conflicts_at_my_risk:
-            raise DistutilsOptionError(
-                "Can't use both --delete-conflicting and "
-                "--ignore-conflicts-at-my-risk at the same time"
-            )
+            self.package_index.scan_egg_links(self.shadow_path + sys.path)
+        if not self.no_find_links:
+            self.package_index.add_find_links(self.find_links)
+        self.set_undefined_options('install_lib', ('optimize', 'optimize'))
+        self.optimize = self._validate_optimize(self.optimize)
+
         if self.editable and not self.build_directory:
             raise DistutilsArgError(
                 "Must specify a build directory (-b) when using --editable"
             )
         if not self.args:
             raise DistutilsArgError(
-                "No urls, filenames, or requirements specified (see --help)")
+                "No urls, filenames, or requirements specified (see --help)"
+            )
 
-        self.outputs = []
+        self.outputs: list[str] = []
 
-    def run(self):
-        if self.verbose<>self.distribution.verbose:
-            log.set_verbosity(self.verbose)
+    @staticmethod
+    def _process_site_dirs(site_dirs):
+        if site_dirs is None:
+            return
+
+        normpath = map(normalize_path, sys.path)
+        site_dirs = [os.path.expanduser(s.strip()) for s in site_dirs.split(',')]
+        for d in site_dirs:
+            if not os.path.isdir(d):
+                log.warn("%s (in --site-dirs) does not exist", d)
+            elif normalize_path(d) not in normpath:
+                raise DistutilsOptionError(d + " (in --site-dirs) is not on sys.path")
+            else:
+                yield normalize_path(d)
+
+    @staticmethod
+    def _validate_optimize(value):
         try:
-            for spec in self.args:
-                self.easy_install(spec, not self.no_deps)
-            if self.record:
-                outputs = self.outputs
-                if self.root:               # strip any package prefix
-                    root_len = len(self.root)
-                    for counter in xrange(len(outputs)):
-                        outputs[counter] = outputs[counter][root_len:]
-                from distutils import file_util
-                self.execute(
-                    file_util.write_file, (self.record, outputs),
-                    "writing list of installed files to '%s'" %
-                    self.record
-                )
-            self.warn_deprecated_options()
-        finally:
-            log.set_verbosity(self.distribution.verbose)
+            value = int(value)
+            if value not in range(3):
+                raise ValueError
+        except ValueError as e:
+            raise DistutilsOptionError("--optimize must be 0, 1, or 2") from e
+
+        return value
+
+    def _fix_install_dir_for_user_site(self):
+        """
+        Fix the install_dir if "--user" was used.
+        """
+        if not self.user:
+            return
+
+        self.create_home_path()
+        if self.install_userbase is None:
+            msg = "User base directory is not specified"
+            raise DistutilsPlatformError(msg)
+        self.install_base = self.install_platbase = self.install_userbase
+        scheme_name = f'{os.name}_user'
+        self.select_scheme(scheme_name)
+
+    def _expand_attrs(self, attrs):
+        for attr in attrs:
+            val = getattr(self, attr)
+            if val is not None:
+                if os.name == 'posix' or os.name == 'nt':
+                    val = os.path.expanduser(val)
+                val = subst_vars(val, self.config_vars)
+                setattr(self, attr, val)
+
+    def expand_basedirs(self) -> None:
+        """Calls `os.path.expanduser` on install_base, install_platbase and
+        root."""
+        self._expand_attrs(['install_base', 'install_platbase', 'root'])
+
+    def expand_dirs(self) -> None:
+        """Calls `os.path.expanduser` on install dirs."""
+        dirs = [
+            'install_purelib',
+            'install_platlib',
+            'install_lib',
+            'install_headers',
+            'install_scripts',
+            'install_data',
+        ]
+        self._expand_attrs(dirs)
+
+    def run(self, show_deprecation: bool = True) -> None:
+        raise RuntimeError("easy_install command is disabled")
 
     def pseudo_tempname(self):
         """Return a pseudo-tempname base in the install directory.
@@ -232,43 +432,47 @@ def pseudo_tempname(self):
         """
         try:
             pid = os.getpid()
-        except:
-            pid = random.randint(0,sys.maxint)
-        return os.path.join(self.install_dir, "test-easy-install-%s" % pid)
-
-    def warn_deprecated_options(self):
-        if self.delete_conflicting or self.ignore_conflicts_at_my_risk:
-            log.warn(
-                "Note: The -D, --delete-conflicting and"
-                " --ignore-conflicts-at-my-risk no longer have any purpose"
-                " and should not be used."
-            )
+        except Exception:
+            pid = random.randint(0, sys.maxsize)
+        return os.path.join(self.install_dir, f"test-easy-install-{pid}")
+
+    def warn_deprecated_options(self) -> None:
+        pass
 
-    def check_site_dir(self):
+    def check_site_dir(self) -> None:  # is too complex (12)  # FIXME
         """Verify that self.install_dir is .pth-capable dir, if needed"""
+
         instdir = normalize_path(self.install_dir)
-        pth_file = os.path.join(instdir,'easy-install.pth')
+        pth_file = os.path.join(instdir, 'easy-install.pth')
+
+        if not os.path.exists(instdir):
+            try:
+                os.makedirs(instdir)
+            except OSError:
+                self.cant_write_to_target()
 
         # Is it a configured, PYTHONPATH, implicit, or explicit site dir?
         is_site_dir = instdir in self.all_site_dirs
 
-        if not is_site_dir:
+        if not is_site_dir and not self.multi_version:
             # No?  Then directly test whether it does .pth file processing
             is_site_dir = self.check_pth_processing()
         else:
             # make sure we can write to target dir
-            testfile = self.pseudo_tempname()+'.write-test'
+            testfile = self.pseudo_tempname() + '.write-test'
             test_exists = os.path.exists(testfile)
             try:
-                if test_exists: os.unlink(testfile)
-                open(testfile,'w').close()
+                if test_exists:
+                    os.unlink(testfile)
+                open(testfile, 'wb').close()
                 os.unlink(testfile)
-            except (OSError,IOError):
+            except OSError:
                 self.cant_write_to_target()
 
         if not is_site_dir and not self.multi_version:
-            # Can't install non-multi to non-site dir
-            raise DistutilsError(self.no_default_version_msg())
+            # Can't install non-multi to non-site dir with easy_install
+            pythonpath = os.environ.get('PYTHONPATH', '')
+            log.warn(self.__no_default_msg, self.install_dir, pythonpath)
 
         if is_site_dir:
             if self.pth_file is None:
@@ -276,150 +480,178 @@ def check_site_dir(self):
         else:
             self.pth_file = None
 
-        PYTHONPATH = os.environ.get('PYTHONPATH','').split(os.pathsep)
-        if instdir not in map(normalize_path, filter(None,PYTHONPATH)):
-            # only PYTHONPATH dirs need a site.py, so pretend it's there
-            self.sitepy_installed = True
-        elif self.multi_version and not os.path.exists(pth_file):
-            self.sitepy_installed = True    # don't need site.py in this case
-            self.pth_file = None            # and don't create a .pth file
+        if self.multi_version and not os.path.exists(pth_file):
+            self.pth_file = None  # don't create a .pth file
         self.install_dir = instdir
 
-    def cant_write_to_target(self):
-        msg = """can't create or remove files in install directory
+    __cant_write_msg = textwrap.dedent(
+        """
+        can't create or remove files in install directory
 
-The following error occurred while trying to add or remove files in the
-installation directory:
+        The following error occurred while trying to add or remove files in the
+        installation directory:
 
-    %s
+            %s
 
-The installation directory you specified (via --install-dir, --prefix, or
-the distutils default setting) was:
+        The installation directory you specified (via --install-dir, --prefix, or
+        the distutils default setting) was:
 
-    %s
-"""     % (sys.exc_info()[1], self.install_dir,)
+            %s
+        """
+    ).lstrip()
 
-        if not os.path.exists(self.install_dir):
-            msg += """
-This directory does not currently exist.  Please create it and try again, or
-choose a different installation directory (using the -d or --install-dir
-option).
-"""
-        else:
-            msg += """
-Perhaps your account does not have write access to this directory?  If the
-installation directory is a system-owned directory, you may need to sign in
-as the administrator or "root" account.  If you do not have administrative
-access to this machine, you may wish to choose a different installation
-directory, preferably one that is listed in your PYTHONPATH environment
-variable.
+    __not_exists_id = textwrap.dedent(
+        """
+        This directory does not currently exist.  Please create it and try again, or
+        choose a different installation directory (using the -d or --install-dir
+        option).
+        """
+    ).lstrip()
 
-For information on other options, you may wish to consult the
-documentation at:
+    __access_msg = textwrap.dedent(
+        """
+        Perhaps your account does not have write access to this directory?  If the
+        installation directory is a system-owned directory, you may need to sign in
+        as the administrator or "root" account.  If you do not have administrative
+        access to this machine, you may wish to choose a different installation
+        directory, preferably one that is listed in your PYTHONPATH environment
+        variable.
 
-  http://peak.telecommunity.com/EasyInstall.html
+        For information on other options, you may wish to consult the
+        documentation at:
 
-Please make the appropriate changes for your system and try again.
-"""
-        raise DistutilsError(msg)
+          https://setuptools.pypa.io/en/latest/deprecated/easy_install.html
 
+        Please make the appropriate changes for your system and try again.
+        """
+    ).lstrip()
 
+    def cant_write_to_target(self) -> NoReturn:
+        msg = self.__cant_write_msg % (
+            sys.exc_info()[1],
+            self.install_dir,
+        )
 
+        if not os.path.exists(self.install_dir):
+            msg += '\n' + self.__not_exists_id
+        else:
+            msg += '\n' + self.__access_msg
+        raise DistutilsError(msg)
 
-    def check_pth_processing(self):
+    def check_pth_processing(self):  # noqa: C901
         """Empirically verify whether .pth files are supported in inst. dir"""
         instdir = self.install_dir
         log.info("Checking .pth file support in %s", instdir)
-        pth_file = self.pseudo_tempname()+".pth"
-        ok_file = pth_file+'.ok'
+        pth_file = self.pseudo_tempname() + ".pth"
+        ok_file = pth_file + '.ok'
         ok_exists = os.path.exists(ok_file)
+        tmpl = (
+            _one_liner(
+                """
+            import os
+            f = open({ok_file!r}, 'w', encoding="utf-8")
+            f.write('OK')
+            f.close()
+            """
+            )
+            + '\n'
+        )
         try:
-            if ok_exists: os.unlink(ok_file)
-            f = open(pth_file,'w')
-        except (OSError,IOError):
+            if ok_exists:
+                os.unlink(ok_file)
+            dirname = os.path.dirname(ok_file)
+            os.makedirs(dirname, exist_ok=True)
+            f = open(pth_file, 'w', encoding=py312.PTH_ENCODING)
+            # ^-- Python<3.13 require encoding="locale" instead of "utf-8",
+            #     see python/cpython#77102.
+        except OSError:
             self.cant_write_to_target()
         else:
             try:
-                f.write("import os;open(%r,'w').write('OK')\n" % (ok_file,))
-                f.close(); f=None
+                f.write(tmpl.format(**locals()))
+                f.close()
+                f = None
                 executable = sys.executable
-                if os.name=='nt':
-                    dirname,basename = os.path.split(executable)
-                    alt = os.path.join(dirname,'pythonw.exe')
-                    if basename.lower()=='python.exe' and os.path.exists(alt):
+                if os.name == 'nt':
+                    dirname, basename = os.path.split(executable)
+                    alt = os.path.join(dirname, 'pythonw.exe')
+                    use_alt = basename.lower() == 'python.exe' and os.path.exists(alt)
+                    if use_alt:
                         # use pythonw.exe to avoid opening a console window
                         executable = alt
 
                 from distutils.spawn import spawn
-                spawn([executable,'-E','-c','pass'],0)
+
+                spawn([executable, '-E', '-c', 'pass'], 0)
 
                 if os.path.exists(ok_file):
-                    log.info(
-                        "TEST PASSED: %s appears to support .pth files",
-                        instdir
-                    )
+                    log.info("TEST PASSED: %s appears to support .pth files", instdir)
                     return True
             finally:
-                if f: f.close()
-                if os.path.exists(ok_file): os.unlink(ok_file)
-                if os.path.exists(pth_file): os.unlink(pth_file)
+                if f:
+                    f.close()
+                if os.path.exists(ok_file):
+                    os.unlink(ok_file)
+                if os.path.exists(pth_file):
+                    os.unlink(pth_file)
         if not self.multi_version:
             log.warn("TEST FAILED: %s does NOT support .pth files", instdir)
         return False
 
-    def install_egg_scripts(self, dist):
+    def install_egg_scripts(self, dist) -> None:
         """Write all the scripts for `dist`, unless scripts are excluded"""
         if not self.exclude_scripts and dist.metadata_isdir('scripts'):
             for script_name in dist.metadata_listdir('scripts'):
+                if dist.metadata_isdir('scripts/' + script_name):
+                    # The "script" is a directory, likely a Python 3
+                    # __pycache__ directory, so skip it.
+                    continue
                 self.install_script(
-                    dist, script_name,
-                    dist.get_metadata('scripts/'+script_name)
+                    dist, script_name, dist.get_metadata('scripts/' + script_name)
                 )
         self.install_wrapper_scripts(dist)
 
-    def add_output(self, path):
+    def add_output(self, path) -> None:
         if os.path.isdir(path):
             for base, dirs, files in os.walk(path):
                 for filename in files:
-                    self.outputs.append(os.path.join(base,filename))
+                    self.outputs.append(os.path.join(base, filename))
         else:
             self.outputs.append(path)
 
-    def not_editable(self, spec):
+    def not_editable(self, spec) -> None:
         if self.editable:
             raise DistutilsArgError(
-                "Invalid argument %r: you can't use filenames or URLs "
+                f"Invalid argument {spec!r}: you can't use filenames or URLs "
                 "with --editable (except via the --find-links option)."
-                % (spec,)
             )
 
-    def check_editable(self,spec):
+    def check_editable(self, spec) -> None:
         if not self.editable:
             return
 
         if os.path.exists(os.path.join(self.build_directory, spec.key)):
             raise DistutilsArgError(
-                "%r already exists in %s; can't do a checkout there" %
-                (spec.key, self.build_directory)
+                f"{spec.key!r} already exists in {self.build_directory}; can't do a checkout there"
             )
 
-
-
-
-
-
-    def easy_install(self, spec, deps=False):
+    @contextlib.contextmanager
+    def _tmpdir(self):
         tmpdir = tempfile.mkdtemp(prefix="easy_install-")
-        download = None
-        if not self.editable: self.install_site_py()
-
         try:
-            if not isinstance(spec,Requirement):
+            # cast to str as workaround for #709 and #710 and #712
+            yield str(tmpdir)
+        finally:
+            os.path.exists(tmpdir) and _rmtree(tmpdir)
+
+    def easy_install(self, spec, deps: bool = False) -> Distribution | None:
+        with self._tmpdir() as tmpdir:
+            if not isinstance(spec, Requirement):
                 if URL_SCHEME(spec):
                     # It's a url, download it to tmpdir and process
                     self.not_editable(spec)
-                    download = self.package_index.download(spec, tmpdir)
-                    return self.install_item(None, download, tmpdir, deps, True)
+                    dl = self.package_index.download(spec, tmpdir)
+                    return self.install_item(None, dl, tmpdir, deps, True)
 
                 elif os.path.exists(spec):
                     # Existing file or directory, just process it directly
@@ -430,45 +662,46 @@ def easy_install(self, spec, deps=False):
 
             self.check_editable(spec)
             dist = self.package_index.fetch_distribution(
-                spec, tmpdir, self.upgrade, self.editable, not self.always_copy
+                spec,
+                tmpdir,
+                self.upgrade,
+                self.editable,
+                not self.always_copy,
+                self.local_index,
             )
-
             if dist is None:
-                msg = "Could not find suitable distribution for %r" % spec
+                msg = f"Could not find suitable distribution for {spec!r}"
                 if self.always_copy:
-                    msg+=" (--always-copy skips system and development eggs)"
+                    msg += " (--always-copy skips system and development eggs)"
                 raise DistutilsError(msg)
-            elif dist.precedence==DEVELOP_DIST:
+            elif dist.precedence == DEVELOP_DIST:
                 # .egg-info dists don't need installing, just process deps
                 self.process_distribution(spec, dist, deps, "Using")
                 return dist
             else:
                 return self.install_item(spec, dist.location, tmpdir, deps)
 
-        finally:
-            if os.path.exists(tmpdir):
-                rmtree(tmpdir)
-
-    def install_item(self, spec, download, tmpdir, deps, install_needed=False):
-
+    def install_item(
+        self, spec, download, tmpdir, deps, install_needed: bool = False
+    ) -> Distribution | None:
         # Installation is also needed if file in tmpdir or is not an egg
-        install_needed = install_needed or self.always_copy
+        install_needed = install_needed or bool(self.always_copy)
         install_needed = install_needed or os.path.dirname(download) == tmpdir
         install_needed = install_needed or not download.endswith('.egg')
         install_needed = install_needed or (
-            self.always_copy_from is not None and
-            os.path.dirname(normalize_path(download)) ==
-            normalize_path(self.always_copy_from)
+            self.always_copy_from is not None
+            and os.path.dirname(normalize_path(download))
+            == normalize_path(self.always_copy_from)
         )
 
         if spec and not install_needed:
             # at this point, we know it's a local .egg, we just don't know if
             # it's already installed.
             for dist in self.local_index[spec.project_name]:
-                if dist.location==download:
+                if dist.location == download:
                     break
             else:
-                install_needed = True   # it's not in the local index
+                install_needed = True  # it's not in the local index
 
         log.info("Processing %s", os.path.basename(download))
 
@@ -477,27 +710,39 @@ def install_item(self, spec, download, tmpdir, deps, install_needed=False):
             for dist in dists:
                 self.process_distribution(spec, dist, deps)
         else:
-            dists = [self.check_conflicts(self.egg_distribution(download))]
+            dists = [self.egg_distribution(download)]
             self.process_distribution(spec, dists[0], deps, "Using")
 
         if spec is not None:
             for dist in dists:
                 if dist in spec:
                     return dist
+        return None
 
-
-
-
-
-
-    def process_distribution(self, requirement, dist, deps=True, *info):
+    def select_scheme(self, name):
+        try:
+            install._select_scheme(self, name)
+        except AttributeError:
+            # stdlib distutils
+            install.install.select_scheme(self, name.replace('posix', 'unix'))
+
+    # FIXME: 'easy_install.process_distribution' is too complex (12)
+    def process_distribution(  # noqa: C901
+        self,
+        requirement,
+        dist,
+        deps: bool = True,
+        *info,
+    ) -> None:
         self.update_pth(dist)
         self.package_index.add(dist)
+        if dist in self.local_index[dist.key]:
+            self.local_index.remove(dist)
         self.local_index.add(dist)
         self.install_egg_scripts(dist)
         self.installed_projects[dist.key] = dist
         log.info(self.installation_report(requirement, dist, *info))
-        if dist.has_metadata('dependency_links.txt'):
+        if dist.has_metadata('dependency_links.txt') and not self.no_find_links:
             self.package_index.add_find_links(
                 dist.get_metadata_lines('dependency_links.txt')
             )
@@ -509,24 +754,16 @@ def process_distribution(self, requirement, dist, deps=True, *info):
         elif requirement is None or dist not in requirement:
             # if we wound up with a different version, resolve what we've got
             distreq = dist.as_requirement()
-            requirement = requirement or distreq
-            requirement = Requirement(
-                distreq.project_name, distreq.specs, requirement.extras
-            )
+            requirement = Requirement(str(distreq))
         log.info("Processing dependencies for %s", requirement)
         try:
             distros = WorkingSet([]).resolve(
                 [requirement], self.local_index, self.easy_install
             )
-        except DistributionNotFound, e:
-            raise DistutilsError(
-                "Could not find required distribution %s" % e.args
-            )
-        except VersionConflict, e:
-            raise DistutilsError(
-                "Installed distribution %s conflicts with requirement %s"
-                % e.args
-            )
+        except DistributionNotFound as e:
+            raise DistutilsError(str(e)) from e
+        except VersionConflict as e:
+            raise DistutilsError(e.report()) from e
         if self.always_copy or self.always_copy_from:
             # Force all the relevant distros to be copied or activated
             for dist in distros:
@@ -534,7 +771,7 @@ def process_distribution(self, requirement, dist, deps=True, *info):
                     self.easy_install(dist.as_requirement())
         log.info("Finished processing dependencies for %s", requirement)
 
-    def should_unzip(self, dist):
+    def should_unzip(self, dist) -> bool:
         if self.zip_ok is not None:
             return not self.zip_ok
         if dist.has_metadata('not-zip-safe'):
@@ -546,79 +783,90 @@ def should_unzip(self, dist):
     def maybe_move(self, spec, dist_filename, setup_base):
         dst = os.path.join(self.build_directory, spec.key)
         if os.path.exists(dst):
-            log.warn(
-               "%r already exists in %s; build directory %s will not be kept",
-               spec.key, self.build_directory, setup_base
-            )
+            msg = "%r already exists in %s; build directory %s will not be kept"
+            log.warn(msg, spec.key, self.build_directory, setup_base)
             return setup_base
         if os.path.isdir(dist_filename):
             setup_base = dist_filename
         else:
-            if os.path.dirname(dist_filename)==setup_base:
-                os.unlink(dist_filename)   # get it out of the tmp dir
+            if os.path.dirname(dist_filename) == setup_base:
+                os.unlink(dist_filename)  # get it out of the tmp dir
             contents = os.listdir(setup_base)
-            if len(contents)==1:
-                dist_filename = os.path.join(setup_base,contents[0])
+            if len(contents) == 1:
+                dist_filename = os.path.join(setup_base, contents[0])
                 if os.path.isdir(dist_filename):
                     # if the only thing there is a directory, move it instead
                     setup_base = dist_filename
-        ensure_directory(dst); shutil.move(setup_base, dst)
+        ensure_directory(dst)
+        shutil.move(setup_base, dst)
         return dst
 
-    def install_wrapper_scripts(self, dist):
-        if not self.exclude_scripts:
-            for args in get_script_args(dist):
-                self.write_script(*args)
-
-
+    def install_wrapper_scripts(self, dist) -> None:
+        if self.exclude_scripts:
+            return
+        for args in ScriptWriter.best().get_args(dist):
+            self.write_script(*args)
 
-    def install_script(self, dist, script_name, script_text, dev_path=None):
+    def install_script(self, dist, script_name, script_text, dev_path=None) -> None:
         """Generate a legacy script wrapper and install it"""
         spec = str(dist.as_requirement())
         is_script = is_python_script(script_text, script_name)
 
-        if is_script and dev_path:
-            script_text = get_script_header(script_text) + (
-                "# EASY-INSTALL-DEV-SCRIPT: %(spec)r,%(script_name)r\n"
-                "__requires__ = %(spec)r\n"
-                "from pkg_resources import require; require(%(spec)r)\n"
-                "del require\n"
-                "__file__ = %(dev_path)r\n"
-                "execfile(__file__)\n"
-            ) % locals()
-        elif is_script:
-            script_text = get_script_header(script_text) + (
-                "# EASY-INSTALL-SCRIPT: %(spec)r,%(script_name)r\n"
-                "__requires__ = %(spec)r\n"
-                "import pkg_resources\n"
-                "pkg_resources.run_script(%(spec)r, %(script_name)r)\n"
-            ) % locals()
-        self.write_script(script_name, script_text, 'b')
-
-    def write_script(self, script_name, contents, mode="t", blockers=()):
+        if is_script:
+            body = self._load_template(dev_path) % locals()
+            script_text = ScriptWriter.get_header(script_text) + body
+        self.write_script(script_name, _to_bytes(script_text), 'b')
+
+    @staticmethod
+    def _load_template(dev_path):
+        """
+        There are a couple of template scripts in the package. This
+        function loads one of them and prepares it for use.
+        """
+        # See https://github.com/pypa/setuptools/issues/134 for info
+        # on script file naming and downstream issues with SVR4
+        name = 'script.tmpl'
+        if dev_path:
+            name = name.replace('.tmpl', ' (dev).tmpl')
+
+        raw_bytes = resource_string('setuptools', name)
+        return raw_bytes.decode('utf-8')
+
+    def write_script(self, script_name, contents, mode: str = "t", blockers=()) -> None:
         """Write an executable file to the scripts directory"""
-        self.delete_blockers(   # clean up old .py/.pyw w/o a script
-            [os.path.join(self.script_dir,x) for x in blockers])
+        self.delete_blockers(  # clean up old .py/.pyw w/o a script
+            [os.path.join(self.script_dir, x) for x in blockers]
+        )
         log.info("Installing %s script to %s", script_name, self.script_dir)
         target = os.path.join(self.script_dir, script_name)
         self.add_output(target)
 
-        if not self.dry_run:
-            ensure_directory(target)
-            f = open(target,"w"+mode)
-            f.write(contents)
-            f.close()
-            chmod(target,0755)
-
+        if self.dry_run:
+            return
 
+        mask = current_umask()
+        ensure_directory(target)
+        if os.path.exists(target):
+            os.unlink(target)
 
+        encoding = None if "b" in mode else "utf-8"
+        with open(target, "w" + mode, encoding=encoding) as f:
+            f.write(contents)
+        chmod(target, 0o777 - mask)
 
-    def install_eggs(self, spec, dist_filename, tmpdir):
+    def install_eggs(self, spec, dist_filename, tmpdir) -> list[Distribution]:
         # .egg dirs or files are already built, so just return them
-        if dist_filename.lower().endswith('.egg'):
-            return [self.install_egg(dist_filename, tmpdir)]
-        elif dist_filename.lower().endswith('.exe'):
-            return [self.install_exe(dist_filename, tmpdir)]
+        installer_map = {
+            '.egg': self.install_egg,
+            '.exe': self.install_exe,
+            '.whl': self.install_wheel,
+        }
+        try:
+            install_dist = installer_map[dist_filename.lower()[-4:]]
+        except KeyError:
+            pass
+        else:
+            return [install_dist(dist_filename, tmpdir)]
 
         # Anything else, try to extract and build
         setup_base = tmpdir
@@ -627,8 +875,10 @@ def install_eggs(self, spec, dist_filename, tmpdir):
         elif os.path.isdir(dist_filename):
             setup_base = os.path.abspath(dist_filename)
 
-        if (setup_base.startswith(tmpdir)   # something we downloaded
-            and self.build_directory and spec is not None
+        if (
+            setup_base.startswith(tmpdir)  # something we downloaded
+            and self.build_directory
+            and spec is not None
         ):
             setup_base = self.maybe_move(spec, dist_filename, setup_base)
 
@@ -639,11 +889,11 @@ def install_eggs(self, spec, dist_filename, tmpdir):
             setups = glob(os.path.join(setup_base, '*', 'setup.py'))
             if not setups:
                 raise DistutilsError(
-                    "Couldn't find a setup script in %s" % os.path.abspath(dist_filename)
+                    f"Couldn't find a setup script in {os.path.abspath(dist_filename)}"
                 )
-            if len(setups)>1:
+            if len(setups) > 1:
                 raise DistutilsError(
-                    "Multiple setup scripts in %s" % os.path.abspath(dist_filename)
+                    f"Multiple setup scripts in {os.path.abspath(dist_filename)}"
                 )
             setup_script = setups[0]
 
@@ -656,41 +906,62 @@ def install_eggs(self, spec, dist_filename, tmpdir):
 
     def egg_distribution(self, egg_path):
         if os.path.isdir(egg_path):
-            metadata = PathMetadata(egg_path,os.path.join(egg_path,'EGG-INFO'))
+            metadata = PathMetadata(egg_path, os.path.join(egg_path, 'EGG-INFO'))
         else:
             metadata = EggMetadata(zipimport.zipimporter(egg_path))
-        return Distribution.from_filename(egg_path,metadata=metadata)
+        return Distribution.from_filename(egg_path, metadata=metadata)
 
+    # FIXME: 'easy_install.install_egg' is too complex (11)
     def install_egg(self, egg_path, tmpdir):
-        destination = os.path.join(self.install_dir,os.path.basename(egg_path))
+        destination = os.path.join(
+            self.install_dir,
+            os.path.basename(egg_path),
+        )
         destination = os.path.abspath(destination)
         if not self.dry_run:
             ensure_directory(destination)
 
         dist = self.egg_distribution(egg_path)
-        self.check_conflicts(dist)
-        if not samefile(egg_path, destination):
+        if not (
+            os.path.exists(destination) and os.path.samefile(egg_path, destination)
+        ):
             if os.path.isdir(destination) and not os.path.islink(destination):
                 dir_util.remove_tree(destination, dry_run=self.dry_run)
             elif os.path.exists(destination):
-                self.execute(os.unlink,(destination,),"Removing "+destination)
-            uncache_zipdir(destination)
-            if os.path.isdir(egg_path):
-                if egg_path.startswith(tmpdir):
-                    f,m = shutil.move, "Moving"
+                self.execute(
+                    os.unlink,
+                    (destination,),
+                    "Removing " + destination,
+                )
+            try:
+                new_dist_is_zipped = False
+                if os.path.isdir(egg_path):
+                    if egg_path.startswith(tmpdir):
+                        f, m = shutil.move, "Moving"
+                    else:
+                        f, m = shutil.copytree, "Copying"
+                elif self.should_unzip(dist):
+                    self.mkpath(destination)
+                    f, m = self.unpack_and_compile, "Extracting"
                 else:
-                    f,m = shutil.copytree, "Copying"
-            elif self.should_unzip(dist):
-                self.mkpath(destination)
-                f,m = self.unpack_and_compile, "Extracting"
-            elif egg_path.startswith(tmpdir):
-                f,m = shutil.move, "Moving"
-            else:
-                f,m = shutil.copy2, "Copying"
-
-            self.execute(f, (egg_path, destination),
-                (m+" %s to %s") %
-                (os.path.basename(egg_path),os.path.dirname(destination)))
+                    new_dist_is_zipped = True
+                    if egg_path.startswith(tmpdir):
+                        f, m = shutil.move, "Moving"
+                    else:
+                        f, m = shutil.copy2, "Copying"
+                self.execute(
+                    f,
+                    (egg_path, destination),
+                    (m + " %s to %s")
+                    % (os.path.basename(egg_path), os.path.dirname(destination)),
+                )
+                update_dist_caches(
+                    destination,
+                    fix_zipimporter_caches=new_dist_is_zipped,
+                )
+            except Exception:
+                update_dist_caches(destination, fix_zipimporter_caches=False)
+                raise
 
         self.add_output(destination)
         return self.egg_distribution(destination)
@@ -700,424 +971,380 @@ def install_exe(self, dist_filename, tmpdir):
         cfg = extract_wininst_cfg(dist_filename)
         if cfg is None:
             raise DistutilsError(
-                "%s is not a valid distutils Windows .exe" % dist_filename
+                f"{dist_filename} is not a valid distutils Windows .exe"
             )
         # Create a dummy distribution object until we build the real distro
-        dist = Distribution(None,
-            project_name=cfg.get('metadata','name'),
-            version=cfg.get('metadata','version'), platform="win32"
+        dist = Distribution(
+            None,
+            project_name=cfg.get('metadata', 'name'),
+            version=cfg.get('metadata', 'version'),
+            platform=get_platform(),
         )
 
         # Convert the .exe to an unpacked egg
-        egg_path = dist.location = os.path.join(tmpdir, dist.egg_name()+'.egg')
-        egg_tmp  = egg_path+'.tmp'
-        egg_info = os.path.join(egg_tmp, 'EGG-INFO')
-        pkg_inf = os.path.join(egg_info, 'PKG-INFO')
-        ensure_directory(pkg_inf)   # make sure EGG-INFO dir exists
-        dist._provider = PathMetadata(egg_tmp, egg_info)    # XXX
+        egg_path = os.path.join(tmpdir, dist.egg_name() + '.egg')
+        dist.location = egg_path
+        egg_tmp = egg_path + '.tmp'
+        _egg_info = os.path.join(egg_tmp, 'EGG-INFO')
+        pkg_inf = os.path.join(_egg_info, 'PKG-INFO')
+        ensure_directory(pkg_inf)  # make sure EGG-INFO dir exists
+        dist._provider = PathMetadata(egg_tmp, _egg_info)  # XXX
         self.exe_to_egg(dist_filename, egg_tmp)
 
         # Write EGG-INFO/PKG-INFO
         if not os.path.exists(pkg_inf):
-            f = open(pkg_inf,'w')
-            f.write('Metadata-Version: 1.0\n')
-            for k,v in cfg.items('metadata'):
-                if k<>'target_version':
-                    f.write('%s: %s\n' % (k.replace('_','-').title(), v))
-            f.close()
-        script_dir = os.path.join(egg_info,'scripts')
-        self.delete_blockers(   # delete entry-point scripts to avoid duping
-            [os.path.join(script_dir,args[0]) for args in get_script_args(dist)]
-        )
+            with open(pkg_inf, 'w', encoding="utf-8") as f:
+                f.write('Metadata-Version: 1.0\n')
+                for k, v in cfg.items('metadata'):
+                    if k != 'target_version':
+                        k = k.replace('_', '-').title()
+                        f.write(f'{k}: {v}\n')
+        script_dir = os.path.join(_egg_info, 'scripts')
+        # delete entry-point scripts to avoid duping
+        self.delete_blockers([
+            os.path.join(script_dir, args[0]) for args in ScriptWriter.get_args(dist)
+        ])
         # Build .egg file from tmpdir
         bdist_egg.make_zipfile(
-            egg_path, egg_tmp, verbose=self.verbose, dry_run=self.dry_run
+            egg_path,
+            egg_tmp,
+            verbose=self.verbose,
+            dry_run=self.dry_run,
         )
         # install the .egg
         return self.install_egg(egg_path, tmpdir)
 
-    def exe_to_egg(self, dist_filename, egg_tmp):
+    # FIXME: 'easy_install.exe_to_egg' is too complex (12)
+    def exe_to_egg(self, dist_filename, egg_tmp) -> None:  # noqa: C901
         """Extract a bdist_wininst to the directories an egg would use"""
         # Check for .pth file and set up prefix translations
         prefixes = get_exe_prefixes(dist_filename)
         to_compile = []
         native_libs = []
-        top_level = {}
-        def process(src,dst):
+        top_level = set()
+
+        def process(src, dst):
             s = src.lower()
-            for old,new in prefixes:
+            for old, new in prefixes:
                 if s.startswith(old):
-                    src = new+src[len(old):]
+                    src = new + src[len(old) :]
                     parts = src.split('/')
                     dst = os.path.join(egg_tmp, *parts)
                     dl = dst.lower()
                     if dl.endswith('.pyd') or dl.endswith('.dll'):
                         parts[-1] = bdist_egg.strip_module(parts[-1])
-                        top_level[os.path.splitext(parts[0])[0]] = 1
+                        top_level.add([os.path.splitext(parts[0])[0]])
                         native_libs.append(src)
-                    elif dl.endswith('.py') and old!='SCRIPTS/':
-                        top_level[os.path.splitext(parts[0])[0]] = 1
+                    elif dl.endswith('.py') and old != 'SCRIPTS/':
+                        top_level.add([os.path.splitext(parts[0])[0]])
                         to_compile.append(dst)
                     return dst
             if not src.endswith('.pth'):
                 log.warn("WARNING: can't process %s", src)
             return None
+
         # extract, tracking .pyd/.dll->native_libs and .py -> to_compile
         unpack_archive(dist_filename, egg_tmp, process)
         stubs = []
         for res in native_libs:
-            if res.lower().endswith('.pyd'):    # create stubs for .pyd's
+            if res.lower().endswith('.pyd'):  # create stubs for .pyd's
                 parts = res.split('/')
                 resource = parts[-1]
-                parts[-1] = bdist_egg.strip_module(parts[-1])+'.py'
+                parts[-1] = bdist_egg.strip_module(parts[-1]) + '.py'
                 pyfile = os.path.join(egg_tmp, *parts)
-                to_compile.append(pyfile); stubs.append(pyfile)
+                to_compile.append(pyfile)
+                stubs.append(pyfile)
                 bdist_egg.write_stub(resource, pyfile)
-        self.byte_compile(to_compile)   # compile .py's
-        bdist_egg.write_safety_flag(os.path.join(egg_tmp,'EGG-INFO'),
-            bdist_egg.analyze_egg(egg_tmp, stubs))  # write zip-safety flag
+        self.byte_compile(to_compile)  # compile .py's
+        bdist_egg.write_safety_flag(
+            os.path.join(egg_tmp, 'EGG-INFO'), bdist_egg.analyze_egg(egg_tmp, stubs)
+        )  # write zip-safety flag
 
-        for name in 'top_level','native_libs':
+        for name in 'top_level', 'native_libs':
             if locals()[name]:
-                txt = os.path.join(egg_tmp, 'EGG-INFO', name+'.txt')
+                txt = os.path.join(egg_tmp, 'EGG-INFO', name + '.txt')
                 if not os.path.exists(txt):
-                    f = open(txt,'w')
-                    f.write('\n'.join(locals()[name])+'\n')
-                    f.close()
+                    with open(txt, 'w', encoding="utf-8") as f:
+                        f.write('\n'.join(locals()[name]) + '\n')
 
-    def check_conflicts(self, dist):
-        """Verify that there are no conflicting "old-style" packages"""
-
-        return dist     # XXX temporarily disable until new strategy is stable
-        from imp import find_module, get_suffixes
-        from glob import glob
-
-        blockers = []
-        names = dict.fromkeys(dist._get_metadata('top_level.txt')) # XXX private attr
-
-        exts = {'.pyc':1, '.pyo':1}     # get_suffixes() might leave one out
-        for ext,mode,typ in get_suffixes():
-            exts[ext] = 1
-
-        for path,files in expand_paths([self.install_dir]+self.all_site_dirs):
-            for filename in files:
-                base,ext = os.path.splitext(filename)
-                if base in names:
-                    if not ext:
-                        # no extension, check for package
-                        try:
-                            f, filename, descr = find_module(base, [path])
-                        except ImportError:
-                            continue
-                        else:
-                            if f: f.close()
-                            if filename not in blockers:
-                                blockers.append(filename)
-                    elif ext in exts and base!='site':  # XXX ugh
-                        blockers.append(os.path.join(path,filename))
-        if blockers:
-            self.found_conflicts(dist, blockers)
-
-        return dist
-
-    def found_conflicts(self, dist, blockers):
-        if self.delete_conflicting:
-            log.warn("Attempting to delete conflicting packages:")
-            return self.delete_blockers(blockers)
-
-        msg = """\
--------------------------------------------------------------------------
-CONFLICT WARNING:
-
-The following modules or packages have the same names as modules or
-packages being installed, and will be *before* the installed packages in
-Python's search path.  You MUST remove all of the relevant files and
-directories before you will be able to use the package(s) you are
-installing:
-
-   %s
-
-""" % '\n   '.join(blockers)
-
-        if self.ignore_conflicts_at_my_risk:
-            msg += """\
-(Note: you can run EasyInstall on '%s' with the
---delete-conflicting option to attempt deletion of the above files
-and/or directories.)
-""" % dist.project_name
-        else:
-            msg += """\
-Note: you can attempt this installation again with EasyInstall, and use
-either the --delete-conflicting (-D) option or the
---ignore-conflicts-at-my-risk option, to either delete the above files
-and directories, or to ignore the conflicts, respectively.  Note that if
-you ignore the conflicts, the installed package(s) may not work.
-"""
-        msg += """\
--------------------------------------------------------------------------
-"""
-        sys.stderr.write(msg)
-        sys.stderr.flush()
-        if not self.ignore_conflicts_at_my_risk:
-            raise DistutilsError("Installation aborted due to conflicts")
+    def install_wheel(self, wheel_path, tmpdir):
+        wheel = Wheel(wheel_path)
+        assert wheel.is_compatible()
+        destination = os.path.join(self.install_dir, wheel.egg_name())
+        destination = os.path.abspath(destination)
+        if not self.dry_run:
+            ensure_directory(destination)
+        if os.path.isdir(destination) and not os.path.islink(destination):
+            dir_util.remove_tree(destination, dry_run=self.dry_run)
+        elif os.path.exists(destination):
+            self.execute(
+                os.unlink,
+                (destination,),
+                "Removing " + destination,
+            )
+        try:
+            self.execute(
+                wheel.install_as_egg,
+                (destination,),
+                (
+                    f"Installing {os.path.basename(wheel_path)} to {os.path.dirname(destination)}"
+                ),
+            )
+        finally:
+            update_dist_caches(destination, fix_zipimporter_caches=False)
+        self.add_output(destination)
+        return self.egg_distribution(destination)
+
+    __mv_warning = textwrap.dedent(
+        """
+        Because this distribution was installed --multi-version, before you can
+        import modules from this package in an application, you will need to
+        'import pkg_resources' and then use a 'require()' call similar to one of
+        these examples, in order to select the desired version:
+
+            pkg_resources.require("%(name)s")  # latest installed version
+            pkg_resources.require("%(name)s==%(version)s")  # this exact version
+            pkg_resources.require("%(name)s>=%(version)s")  # this version or higher
+        """
+    ).lstrip()
 
-    def installation_report(self, req, dist, what="Installed"):
+    __id_warning = textwrap.dedent(
+        """
+        Note also that the installation directory must be on sys.path at runtime for
+        this to work.  (e.g. by being the application's script directory, by being on
+        PYTHONPATH, or by being added to sys.path by your code.)
+        """
+    )
+
+    def installation_report(self, req, dist, what: str = "Installed") -> str:
         """Helpful installation message for display to package users"""
         msg = "\n%(what)s %(eggloc)s%(extras)s"
         if self.multi_version and not self.no_report:
-            msg += """
-
-Because this distribution was installed --multi-version, before you can
-import modules from this package in an application, you will need to
-'import pkg_resources' and then use a 'require()' call similar to one of
-these examples, in order to select the desired version:
-
-    pkg_resources.require("%(name)s")  # latest installed version
-    pkg_resources.require("%(name)s==%(version)s")  # this exact version
-    pkg_resources.require("%(name)s>=%(version)s")  # this version or higher
-"""
-            if self.install_dir not in map(normalize_path,sys.path):
-                msg += """
+            msg += '\n' + self.__mv_warning
+            if self.install_dir not in map(normalize_path, sys.path):
+                msg += '\n' + self.__id_warning
 
-Note also that the installation directory must be on sys.path at runtime for
-this to work.  (e.g. by being the application's script directory, by being on
-PYTHONPATH, or by being added to sys.path by your code.)
-"""
         eggloc = dist.location
         name = dist.project_name
         version = dist.version
-        extras = '' # TODO: self.report_extras(req, dist)
+        extras = ''  # TODO: self.report_extras(req, dist)
         return msg % locals()
 
-    def report_editable(self, spec, setup_script):
-        dirname = os.path.dirname(setup_script)
-        python = sys.executable
-        return """\nExtracted editable version of %(spec)s to %(dirname)s
+    __editable_msg = textwrap.dedent(
+        """
+        Extracted editable version of %(spec)s to %(dirname)s
 
-If it uses setuptools in its setup script, you can activate it in
-"development" mode by going to that directory and running::
+        If it uses setuptools in its setup script, you can activate it in
+        "development" mode by going to that directory and running::
 
-    %(python)s setup.py develop
+            %(python)s setup.py develop
 
-See the setuptools documentation for the "develop" command for more info.
-""" % locals()
+        See the setuptools documentation for the "develop" command for more info.
+        """
+    ).lstrip()
 
-    def run_setup(self, setup_script, setup_base, args):
-        sys.modules.setdefault('distutils.command.bdist_egg', bdist_egg)
-        sys.modules.setdefault('distutils.command.egg_info', egg_info)
+    def report_editable(self, spec, setup_script):
+        dirname = os.path.dirname(setup_script)
+        python = sys.executable
+        return '\n' + self.__editable_msg % locals()
 
-        args = list(args)
-        if self.verbose>2:
-            v = 'v' * (self.verbose - 1)
-            args.insert(0,'-'+v)
-        elif self.verbose<2:
-            args.insert(0,'-q')
-        if self.dry_run:
-            args.insert(0,'-n')
-        log.info(
-            "Running %s %s", setup_script[len(setup_base)+1:], ' '.join(args)
-        )
-        try:
-            run_setup(setup_script, args)
-        except SystemExit, v:
-            raise DistutilsError("Setup script exited with %s" % (v.args[0],))
+    def run_setup(self, setup_script, setup_base, args) -> NoReturn:
+        raise NotImplementedError("easy_install support has been removed")
 
     def build_and_install(self, setup_script, setup_base):
         args = ['bdist_egg', '--dist-dir']
+
         dist_dir = tempfile.mkdtemp(
             prefix='egg-dist-tmp-', dir=os.path.dirname(setup_script)
         )
         try:
+            self._set_fetcher_options(os.path.dirname(setup_script))
             args.append(dist_dir)
+
             self.run_setup(setup_script, setup_base, args)
             all_eggs = Environment([dist_dir])
-            eggs = []
-            for key in all_eggs:
-                for dist in all_eggs[key]:
-                    eggs.append(self.install_egg(dist.location, setup_base))
+            eggs = [
+                self.install_egg(dist.location, setup_base)
+                for key in all_eggs
+                for dist in all_eggs[key]
+            ]
             if not eggs and not self.dry_run:
-                log.warn("No eggs found in %s (setup script problem?)",
-                    dist_dir)
+                log.warn("No eggs found in %s (setup script problem?)", dist_dir)
             return eggs
         finally:
-            rmtree(dist_dir)
-            log.set_verbosity(self.verbose) # restore our log verbosity
+            _rmtree(dist_dir)
+            log.set_verbosity(self.verbose)  # restore our log verbosity
+
+    def _set_fetcher_options(self, base):
+        """
+        When easy_install is about to run bdist_egg on a source dist, that
+        source dist might have 'setup_requires' directives, requiring
+        additional fetching. Ensure the fetcher options given to easy_install
+        are available to that command as well.
+        """
+        # find the fetch options from easy_install and write them out
+        # to the setup.cfg file.
+        ei_opts = self.distribution.get_option_dict('easy_install').copy()
+        fetch_directives = (
+            'find_links',
+            'site_dirs',
+            'index_url',
+            'optimize',
+            'allow_hosts',
+        )
+        fetch_options = {}
+        for key, val in ei_opts.items():
+            if key not in fetch_directives:
+                continue
+            fetch_options[key] = val[1]
+        # create a settings dictionary suitable for `edit_config`
+        settings = dict(easy_install=fetch_options)
+        cfg_filename = os.path.join(base, 'setup.cfg')
+        setopt.edit_config(cfg_filename, settings)
 
-    def update_pth(self,dist):
+    def update_pth(self, dist) -> None:  # noqa: C901  # is too complex (11)  # FIXME
         if self.pth_file is None:
             return
 
-        for d in self.pth_file[dist.key]:    # drop old entries
-            if self.multi_version or d.location != dist.location:
-                log.info("Removing %s from easy-install.pth file", d)
-                self.pth_file.remove(d)
-                if d.location in self.shadow_path:
-                    self.shadow_path.remove(d.location)
+        for d in self.pth_file[dist.key]:  # drop old entries
+            if not self.multi_version and d.location == dist.location:
+                continue
+
+            log.info("Removing %s from easy-install.pth file", d)
+            self.pth_file.remove(d)
+            if d.location in self.shadow_path:
+                self.shadow_path.remove(d.location)
 
         if not self.multi_version:
             if dist.location in self.pth_file.paths:
                 log.info(
                     "%s is already the active version in easy-install.pth",
-                    dist
+                    dist,
                 )
             else:
                 log.info("Adding %s to easy-install.pth file", dist)
-                self.pth_file.add(dist) # add new entry
+                self.pth_file.add(dist)  # add new entry
                 if dist.location not in self.shadow_path:
                     self.shadow_path.append(dist.location)
 
-        if not self.dry_run:
+        if self.dry_run:
+            return
 
-            self.pth_file.save()
-            if dist.key=='distribute':
-                # Ensure that setuptools itself never becomes unavailable!
-                # XXX should this check for latest version?
-                filename = os.path.join(self.install_dir,'setuptools.pth')
-                if os.path.islink(filename): os.unlink(filename)
-                f = open(filename, 'wt')
-                f.write(self.pth_file.make_relative(dist.location)+'\n')
-                f.close()
+        self.pth_file.save()
+
+        if dist.key != 'setuptools':
+            return
+
+        # Ensure that setuptools itself never becomes unavailable!
+        # XXX should this check for latest version?
+        filename = os.path.join(self.install_dir, 'setuptools.pth')
+        if os.path.islink(filename):
+            os.unlink(filename)
+
+        with open(filename, 'wt', encoding=py312.PTH_ENCODING) as f:
+            # ^-- Python<3.13 require encoding="locale" instead of "utf-8",
+            #     see python/cpython#77102.
+            f.write(self.pth_file.make_relative(dist.location) + '\n')
 
     def unpack_progress(self, src, dst):
         # Progress filter for unpacking
         log.debug("Unpacking %s to %s", src, dst)
-        return dst     # only unpack-and-compile skips files for dry run
+        return dst  # only unpack-and-compile skips files for dry run
 
-    def unpack_and_compile(self, egg_path, destination):
-        to_compile = []; to_chmod = []
+    def unpack_and_compile(self, egg_path, destination) -> None:
+        to_compile = []
+        to_chmod = []
 
-        def pf(src,dst):
+        def pf(src, dst):
             if dst.endswith('.py') and not src.startswith('EGG-INFO/'):
                 to_compile.append(dst)
-                to_chmod.append(dst)
             elif dst.endswith('.dll') or dst.endswith('.so'):
                 to_chmod.append(dst)
-            self.unpack_progress(src,dst)
+            self.unpack_progress(src, dst)
             return not self.dry_run and dst or None
 
         unpack_archive(egg_path, destination, pf)
         self.byte_compile(to_compile)
         if not self.dry_run:
             for f in to_chmod:
-                mode = ((os.stat(f)[stat.ST_MODE]) | 0555) & 07755
+                mode = ((os.stat(f)[stat.ST_MODE]) | 0o555) & 0o7755
                 chmod(f, mode)
 
-    def byte_compile(self, to_compile):
+    def byte_compile(self, to_compile) -> None:
+        if sys.dont_write_bytecode:
+            return
+
         from distutils.util import byte_compile
+
         try:
             # try to make the byte compile messages quieter
             log.set_verbosity(self.verbose - 1)
 
-            byte_compile(to_compile, optimize=0, force=1, dry_run=self.dry_run)
+            byte_compile(to_compile, optimize=0, force=True, dry_run=self.dry_run)
             if self.optimize:
                 byte_compile(
-                    to_compile, optimize=self.optimize, force=1,
-                    dry_run=self.dry_run
+                    to_compile,
+                    optimize=self.optimize,
+                    force=True,
+                    dry_run=self.dry_run,
                 )
         finally:
-            log.set_verbosity(self.verbose)     # restore original verbosity
-
-
-
-
-
+            log.set_verbosity(self.verbose)  # restore original verbosity
 
+    __no_default_msg = textwrap.dedent(
+        """
+        bad install directory or PYTHONPATH
 
+        You are attempting to install a package to a directory that is not
+        on PYTHONPATH and which Python does not read ".pth" files from.  The
+        installation directory you specified (via --install-dir, --prefix, or
+        the distutils default setting) was:
 
-    def no_default_version_msg(self):
-        return """bad install directory or PYTHONPATH
-
-You are attempting to install a package to a directory that is not
-on PYTHONPATH and which Python does not read ".pth" files from.  The
-installation directory you specified (via --install-dir, --prefix, or
-the distutils default setting) was:
-
-    %s
-
-and your PYTHONPATH environment variable currently contains:
-
-    %r
-
-Here are some of your options for correcting the problem:
-
-* You can choose a different installation directory, i.e., one that is
-  on PYTHONPATH or supports .pth files
-
-* You can add the installation directory to the PYTHONPATH environment
-  variable.  (It must then also be on PYTHONPATH whenever you run
-  Python and want to use the package(s) you are installing.)
-
-* You can set up the installation directory to support ".pth" files by
-  using one of the approaches described here:
-
-  http://peak.telecommunity.com/EasyInstall.html#custom-installation-locations
-
-Please make the appropriate changes for your system and try again.""" % (
-        self.install_dir, os.environ.get('PYTHONPATH','')
-    )
-
-
-
-
-
-
-
-
-
-
-    def install_site_py(self):
-        """Make sure there's a site.py in the target dir, if needed"""
-
-        if self.sitepy_installed:
-            return  # already did it, or don't need to
-
-        sitepy = os.path.join(self.install_dir, "site.py")
-        source = resource_string(Requirement.parse("setuptools"), "site.py")
-        current = ""
-
-        if os.path.exists(sitepy):
-            log.debug("Checking existing site.py in %s", self.install_dir)
-            f = open(sitepy,'rb')
-            current = f.read()
-            f.close()
-            if not current.startswith('def __boot():'):
-                raise DistutilsError(
-                    "%s is not a setuptools-generated site.py; please"
-                    " remove it." % sitepy
-                )
-
-        if current != source:
-            log.info("Creating %s", sitepy)
-            if not self.dry_run:
-                ensure_directory(sitepy)
-                f = open(sitepy,'wb')
-                f.write(source)
-                f.close()
-            self.byte_compile([sitepy])
-
-        self.sitepy_installed = True
-
+            %s
 
+        and your PYTHONPATH environment variable currently contains:
 
+            %r
 
+        Here are some of your options for correcting the problem:
 
+        * You can choose a different installation directory, i.e., one that is
+          on PYTHONPATH or supports .pth files
 
+        * You can add the installation directory to the PYTHONPATH environment
+          variable.  (It must then also be on PYTHONPATH whenever you run
+          Python and want to use the package(s) you are installing.)
 
+        * You can set up the installation directory to support ".pth" files by
+          using one of the approaches described here:
 
+          https://setuptools.pypa.io/en/latest/deprecated/easy_install.html#custom-installation-locations
 
 
+        Please make the appropriate changes for your system and try again.
+        """
+    ).strip()
 
+    def create_home_path(self) -> None:
+        """Create directories under ~."""
+        if not self.user:
+            return
+        home = convert_path(os.path.expanduser("~"))
+        for path in only_strs(self.config_vars.values()):
+            if path.startswith(home) and not os.path.isdir(path):
+                self.debug_print(f"os.makedirs('{path}', 0o700)")
+                os.makedirs(path, 0o700)
 
     INSTALL_SCHEMES = dict(
-        posix = dict(
-            install_dir = '$base/lib/python$py_version_short/site-packages',
-            script_dir  = '$base/bin',
+        posix=dict(
+            install_dir='$base/lib/python$py_version_short/site-packages',
+            script_dir='$base/bin',
         ),
     )
 
     DEFAULT_SCHEME = dict(
-        install_dir = '$base/Lib/site-packages',
-        script_dir  = '$base/Scripts',
+        install_dir='$base/Lib/site-packages',
+        script_dir='$base/Scripts',
     )
 
     def _expand(self, *attrs):
@@ -1125,14 +1352,15 @@ def _expand(self, *attrs):
 
         if self.prefix:
             # Set default install_dir/scripts from --prefix
-            config_vars = config_vars.copy()
+            config_vars = dict(config_vars)
             config_vars['base'] = self.prefix
-            scheme = self.INSTALL_SCHEMES.get(os.name,self.DEFAULT_SCHEME)
-            for attr,val in scheme.items():
-                if getattr(self,attr,None) is None:
-                    setattr(self,attr,val)
+            scheme = self.INSTALL_SCHEMES.get(os.name, self.DEFAULT_SCHEME)
+            for attr, val in scheme.items():
+                if getattr(self, attr, None) is None:
+                    setattr(self, attr, val)
 
         from distutils.util import subst_vars
+
         for attr in attrs:
             val = getattr(self, attr)
             if val is not None:
@@ -1142,65 +1370,90 @@ def _expand(self, *attrs):
                 setattr(self, attr, val)
 
 
+def _pythonpath():
+    items = os.environ.get('PYTHONPATH', '').split(os.pathsep)
+    return filter(None, items)
 
 
+def get_site_dirs():
+    """
+    Return a list of 'site' dirs
+    """
 
+    sitedirs = []
 
+    # start with PYTHONPATH
+    sitedirs.extend(_pythonpath())
 
-
-
-def get_site_dirs():
-    # return a list of 'site' dirs
-    sitedirs = filter(None,os.environ.get('PYTHONPATH','').split(os.pathsep))
     prefixes = [sys.prefix]
     if sys.exec_prefix != sys.prefix:
         prefixes.append(sys.exec_prefix)
     for prefix in prefixes:
-        if prefix:
-            if sys.platform in ('os2emx', 'riscos'):
-                sitedirs.append(os.path.join(prefix, "Lib", "site-packages"))
-            elif os.sep == '/':
-                sitedirs.extend([os.path.join(prefix,
-                                         "lib",
-                                         "python" + sys.version[:3],
-                                         "site-packages"),
-                            os.path.join(prefix, "lib", "site-python")])
-            else:
-                sitedirs.extend(
-                    [prefix, os.path.join(prefix, "lib", "site-packages")]
-                )
-            if sys.platform == 'darwin':
-                # for framework builds *only* we add the standard Apple
-                # locations. Currently only per-user, but /Library and
-                # /Network/Library could be added too
-                if 'Python.framework' in prefix:
-                    home = os.environ.get('HOME')
-                    if home:
-                        sitedirs.append(
-                            os.path.join(home,
-                                         'Library',
-                                         'Python',
-                                         sys.version[:3],
-                                         'site-packages'))
-    for plat_specific in (0,1):
-        site_lib = get_python_lib(plat_specific)
-        if site_lib not in sitedirs: sitedirs.append(site_lib)
-
-    sitedirs = map(normalize_path, sitedirs)
-    return sitedirs
-
-
-def expand_paths(inputs):
+        if not prefix:
+            continue
+
+        if sys.platform in ('os2emx', 'riscos'):
+            sitedirs.append(os.path.join(prefix, "Lib", "site-packages"))
+        elif os.sep == '/':
+            sitedirs.extend([
+                os.path.join(
+                    prefix,
+                    "lib",
+                    f"python{sys.version_info.major}.{sys.version_info.minor}",
+                    "site-packages",
+                ),
+                os.path.join(prefix, "lib", "site-python"),
+            ])
+        else:
+            sitedirs.extend([
+                prefix,
+                os.path.join(prefix, "lib", "site-packages"),
+            ])
+        if sys.platform != 'darwin':
+            continue
+
+        # for framework builds *only* we add the standard Apple
+        # locations. Currently only per-user, but /Library and
+        # /Network/Library could be added too
+        if 'Python.framework' not in prefix:
+            continue
+
+        home = os.environ.get('HOME')
+        if not home:
+            continue
+
+        home_sp = os.path.join(
+            home,
+            'Library',
+            'Python',
+            f'{sys.version_info.major}.{sys.version_info.minor}',
+            'site-packages',
+        )
+        sitedirs.append(home_sp)
+    lib_paths = get_path('purelib'), get_path('platlib')
+
+    sitedirs.extend(s for s in lib_paths if s not in sitedirs)
+
+    if site.ENABLE_USER_SITE:
+        sitedirs.append(site.USER_SITE)
+
+    with contextlib.suppress(AttributeError):
+        sitedirs.extend(site.getsitepackages())
+
+    return list(map(normalize_path, sitedirs))
+
+
+def expand_paths(inputs):  # noqa: C901  # is too complex (11)  # FIXME
     """Yield sys.path directories that might contain "old-style" packages"""
 
-    seen = {}
+    seen = set()
 
     for dirname in inputs:
         dirname = normalize_path(dirname)
         if dirname in seen:
             continue
 
-        seen[dirname] = 1
+        seen.add(dirname)
         if not os.path.isdir(dirname):
             continue
 
@@ -1211,32 +1464,36 @@ def expand_paths(inputs):
             if not name.endswith('.pth'):
                 # We only care about the .pth files
                 continue
-            if name in ('easy-install.pth','setuptools.pth'):
+            if name in ('easy-install.pth', 'setuptools.pth'):
                 # Ignore .pth files that we control
                 continue
 
             # Read the .pth file
-            f = open(os.path.join(dirname,name))
-            lines = list(yield_lines(f))
-            f.close()
+            content = _read_pth(os.path.join(dirname, name))
+            lines = list(yield_lines(content))
 
             # Yield existing non-dupe, non-import directory lines from it
             for line in lines:
-                if not line.startswith("import"):
-                    line = normalize_path(line.rstrip())
-                    if line not in seen:
-                        seen[line] = 1
-                        if not os.path.isdir(line):
-                            continue
-                        yield line, os.listdir(line)
+                if line.startswith("import"):
+                    continue
+
+                line = normalize_path(line.rstrip())
+                if line in seen:
+                    continue
+
+                seen.add(line)
+                if not os.path.isdir(line):
+                    continue
+
+                yield line, os.listdir(line)
 
 
 def extract_wininst_cfg(dist_filename):
     """Extract configuration data from a bdist_wininst .exe
 
-    Returns a ConfigParser.RawConfigParser, or None
+    Returns a configparser.RawConfigParser, or None
     """
-    f = open(dist_filename,'rb')
+    f = open(dist_filename, 'rb')
     try:
         endrec = zipfile._EndRecData(f)
         if endrec is None:
@@ -1245,18 +1502,24 @@ def extract_wininst_cfg(dist_filename):
         prepended = (endrec[9] - endrec[5]) - endrec[6]
         if prepended < 12:  # no wininst data here
             return None
-        f.seek(prepended-12)
+        f.seek(prepended - 12)
 
-        import struct, StringIO, ConfigParser
-        tag, cfglen, bmlen = struct.unpack("egg path translations for a given .exe file"""
 
     prefixes = [
-        ('PURELIB/', ''), ('PLATLIB/pywin32_system32', ''),
+        ('PURELIB/', ''),
+        ('PLATLIB/pywin32_system32', ''),
         ('PLATLIB/', ''),
-        ('SCRIPTS/', 'EGG-INFO/scripts/')
+        ('SCRIPTS/', 'EGG-INFO/scripts/'),
+        ('DATA/lib/site-packages', ''),
     ]
     z = zipfile.ZipFile(exe_filename)
     try:
         for info in z.infolist():
             name = info.filename
             parts = name.split('/')
-            if len(parts)==3 and parts[2]=='PKG-INFO':
+            if len(parts) == 3 and parts[2] == 'PKG-INFO':
                 if parts[1].endswith('.egg-info'):
-                    prefixes.insert(0,('/'.join(parts[:2]), 'EGG-INFO/'))
+                    prefixes.insert(0, ('/'.join(parts[:2]), 'EGG-INFO/'))
                     break
-            if len(parts)<>2 or not name.endswith('.pth'):
+            if len(parts) != 2 or not name.endswith('.pth'):
                 continue
             if name.endswith('-nspkg.pth'):
                 continue
-            if parts[0].upper() in ('PURELIB','PLATLIB'):
-                for pth in yield_lines(z.read(name)):
-                    pth = pth.strip().replace('\\','/')
+            if parts[0].upper() in ('PURELIB', 'PLATLIB'):
+                contents = z.read(name).decode()
+                for pth in yield_lines(contents):
+                    pth = pth.strip().replace('\\', '/')
                     if not pth.startswith('import'):
-                        prefixes.append((('%s/%s/' % (parts[0],pth)), ''))
+                        prefixes.append(((f'{parts[0]}/{pth}/'), ''))
     finally:
         z.close()
-    prefixes = [(x.lower(),y) for x, y in prefixes]
-    prefixes.sort(); prefixes.reverse()
+    prefixes = [(x.lower(), y) for x, y in prefixes]
+    prefixes.sort()
+    prefixes.reverse()
     return prefixes
 
 
-def parse_requirement_arg(spec):
-    try:
-        return Requirement.parse(spec)
-    except ValueError:
-        raise DistutilsError(
-            "Not a URL, existing file, or requirement spec: %r" % (spec,)
-        )
-
 class PthDistributions(Environment):
     """A .pth file with Distribution paths in it"""
 
-    dirty = False
-
-    def __init__(self, filename, sitedirs=()):
-        self.filename = filename; self.sitedirs=map(normalize_path, sitedirs)
+    def __init__(self, filename, sitedirs=()) -> None:
+        self.filename = filename
+        self.sitedirs = list(map(normalize_path, sitedirs))
         self.basedir = normalize_path(os.path.dirname(self.filename))
-        self._load(); Environment.__init__(self, [], None, None)
+        self.paths, self.dirty = self._load()
+        # keep a copy if someone manually updates the paths attribute on the instance
+        self._init_paths = self.paths[:]
+        super().__init__([], None, None)
         for path in yield_lines(self.paths):
-            map(self.add, find_distributions(path, True))
+            list(map(self.add, find_distributions(path, True)))
+
+    def _load_raw(self):
+        paths = []
+        dirty = saw_import = False
+        seen = set(self.sitedirs)
+        content = _read_pth(self.filename)
+        for line in content.splitlines():
+            path = line.rstrip()
+            # still keep imports and empty/commented lines for formatting
+            paths.append(path)
+            if line.startswith(('import ', 'from ')):
+                saw_import = True
+                continue
+            stripped_path = path.strip()
+            if not stripped_path or stripped_path.startswith('#'):
+                continue
+            # skip non-existent paths, in case somebody deleted a package
+            # manually, and duplicate paths as well
+            normalized_path = normalize_path(os.path.join(self.basedir, path))
+            if normalized_path in seen or not os.path.exists(normalized_path):
+                log.debug("cleaned up dirty or duplicated %r", path)
+                dirty = True
+                paths.pop()
+                continue
+            seen.add(normalized_path)
+        # remove any trailing empty/blank line
+        while paths and not paths[-1].strip():
+            paths.pop()
+            dirty = True
+        return paths, dirty or (paths and saw_import)
 
     def _load(self):
-        self.paths = []
-        saw_import = False
-        seen = dict.fromkeys(self.sitedirs)
         if os.path.isfile(self.filename):
-            f = open(self.filename,'rt')
-            for line in f:
-                if line.startswith('import'):
-                    saw_import = True
-                    continue
-                path = line.rstrip()
-                self.paths.append(path)
-                if not path.strip() or path.strip().startswith('#'):
-                    continue
-                # skip non-existent paths, in case somebody deleted a package
-                # manually, and duplicate paths as well
-                path = self.paths[-1] = normalize_path(
-                    os.path.join(self.basedir,path)
-                )
-                if not os.path.exists(path) or path in seen:
-                    self.paths.pop()    # skip it
-                    self.dirty = True   # we cleaned up, so we're dirty now :)
-                    continue
-                seen[path] = 1
-            f.close()
+            return self._load_raw()
+        return [], False
 
-        if self.paths and not saw_import:
-            self.dirty = True   # ensure anything we touch has import wrappers
-        while self.paths and not self.paths[-1].strip():
-            self.paths.pop()
-
-    def save(self):
+    def save(self) -> None:
         """Write changed .pth file back to disk"""
+        # first reload the file
+        last_paths, last_dirty = self._load()
+        # and check that there are no difference with what we have.
+        # there can be difference if someone else has written to the file
+        # since we first loaded it.
+        # we don't want to lose the eventual new paths added since then.
+        for path in last_paths[:]:
+            if path not in self.paths:
+                self.paths.append(path)
+                log.info("detected new path %r", path)
+                last_dirty = True
+            else:
+                last_paths.remove(path)
+        # also, re-check that all paths are still valid before saving them
+        for path in self.paths[:]:
+            if path not in last_paths and not path.startswith((
+                'import ',
+                'from ',
+                '#',
+            )):
+                absolute_path = os.path.join(self.basedir, path)
+                if not os.path.exists(absolute_path):
+                    self.paths.remove(path)
+                    log.info("removing now non-existent path %r", path)
+                    last_dirty = True
+
+        self.dirty |= last_dirty or self.paths != self._init_paths
         if not self.dirty:
             return
 
-        data = '\n'.join(map(self.make_relative,self.paths))
-        if data:
+        rel_paths = list(map(self.make_relative, self.paths))
+        if rel_paths:
             log.debug("Saving %s", self.filename)
-            data = (
-                "import sys; sys.__plen = len(sys.path)\n"
-                "%s\n"
-                "import sys; new=sys.path[sys.__plen:];"
-                " del sys.path[sys.__plen:];"
-                " p=getattr(sys,'__egginsert',0); sys.path[p:p]=new;"
-                " sys.__egginsert = p+len(new)\n"
-            ) % data
-
+            lines = self._wrap_lines(rel_paths)
+            data = '\n'.join(lines) + '\n'
             if os.path.islink(self.filename):
                 os.unlink(self.filename)
-            f = open(self.filename,'wb')
-            f.write(data); f.close()
-
+            with open(self.filename, 'wt', encoding=py312.PTH_ENCODING) as f:
+                # ^-- Python<3.13 require encoding="locale" instead of "utf-8",
+                #     see python/cpython#77102.
+                f.write(data)
         elif os.path.exists(self.filename):
             log.debug("Deleting empty %s", self.filename)
             os.unlink(self.filename)
 
         self.dirty = False
+        self._init_paths[:] = self.paths[:]
 
-    def add(self,dist):
+    @staticmethod
+    def _wrap_lines(lines):
+        return lines
+
+    def add(self, dist) -> None:
         """Add `dist` to the distribution map"""
-        if dist.location not in self.paths and dist.location not in self.sitedirs:
-            self.paths.append(dist.location); self.dirty = True
-        Environment.add(self,dist)
+        new_path = dist.location not in self.paths and (
+            dist.location not in self.sitedirs
+            or
+            # account for '.' being in PYTHONPATH
+            dist.location == os.getcwd()
+        )
+        if new_path:
+            self.paths.append(dist.location)
+            self.dirty = True
+        super().add(dist)
 
-    def remove(self,dist):
+    def remove(self, dist) -> None:
         """Remove `dist` from the distribution map"""
         while dist.location in self.paths:
-            self.paths.remove(dist.location); self.dirty = True
-        Environment.remove(self,dist)
+            self.paths.remove(dist.location)
+            self.dirty = True
+        super().remove(dist)
 
-
-    def make_relative(self,path):
+    def make_relative(self, path):
         npath, last = os.path.split(normalize_path(path))
         baselen = len(self.basedir)
         parts = [last]
-        sep = os.altsep=='/' and '/' or os.sep
-        while len(npath)>=baselen:
-            if npath==self.basedir:
+        sep = os.altsep == '/' and '/' or os.sep
+        while len(npath) >= baselen:
+            if npath == self.basedir:
                 parts.append(os.curdir)
                 parts.reverse()
                 return sep.join(parts)
@@ -1412,54 +1704,231 @@ def make_relative(self,path):
         else:
             return path
 
-def get_script_header(script_text, executable=sys_executable, wininst=False):
-    """Create a #! line, getting options (if any) from script_text"""
-    from distutils.command.build_scripts import first_line_re
-    first = (script_text+'\n').splitlines()[0]
-    match = first_line_re.match(first)
-    options = ''
-    if match:
-        options = match.group(1) or ''
-        if options: options = ' '+options
-    if wininst:
-        executable = "python.exe"
-    else:
-        executable = nt_quote_arg(executable)
-    hdr = "#!%(executable)s%(options)s\n" % locals()
-    if unicode(hdr,'ascii','ignore').encode('ascii') != hdr:
-        # Non-ascii path to sys.executable, use -x to prevent warnings
-        if options:
-            if options.strip().startswith('-'):
-                options = ' -x'+options.strip()[1:]
-            # else: punt, we can't do it, let the warning happen anyway
-        else:
-            options = ' -x'
-    executable = fix_jython_executable(executable, options)
-    hdr = "#!%(executable)s%(options)s\n" % locals()
-    return hdr
-
-def auto_chmod(func, arg, exc):
-    if func is os.remove and os.name=='nt':
-        chmod(arg, stat.S_IWRITE)
-        return func(arg)
-    exc = sys.exc_info()
-    raise exc[0], (exc[1][0], exc[1][1] + (" %s %s" % (func,arg)))
-
-def uncache_zipdir(path):
-    """Ensure that the importer caches dont have stale info for `path`"""
-    from zipimport import _zip_directory_cache as zdc
-    _uncache(path, zdc)
-    _uncache(path, sys.path_importer_cache)
-
-def _uncache(path, cache):
-    if path in cache:
-        del cache[path]
+
+class RewritePthDistributions(PthDistributions):
+    @classmethod
+    def _wrap_lines(cls, lines):
+        yield cls.prelude
+        yield from lines
+        yield cls.postlude
+
+    prelude = _one_liner(
+        """
+        import sys
+        sys.__plen = len(sys.path)
+        """
+    )
+    postlude = _one_liner(
+        """
+        import sys
+        new = sys.path[sys.__plen:]
+        del sys.path[sys.__plen:]
+        p = getattr(sys, '__egginsert', 0)
+        sys.path[p:p] = new
+        sys.__egginsert = p + len(new)
+        """
+    )
+
+
+if os.environ.get('SETUPTOOLS_SYS_PATH_TECHNIQUE', 'raw') == 'rewrite':
+    PthDistributions = RewritePthDistributions  # type: ignore[misc]  # Overwriting type
+
+
+def _first_line_re():
+    """
+    Return a regular expression based on first_line_re suitable for matching
+    strings.
+    """
+    if isinstance(first_line_re.pattern, str):
+        return first_line_re
+
+    # first_line_re in Python >=3.1.4 and >=3.2.1 is a bytes pattern.
+    return re.compile(first_line_re.pattern.decode())
+
+
+def update_dist_caches(dist_path, fix_zipimporter_caches):
+    """
+    Fix any globally cached `dist_path` related data
+
+    `dist_path` should be a path of a newly installed egg distribution (zipped
+    or unzipped).
+
+    sys.path_importer_cache contains finder objects that have been cached when
+    importing data from the original distribution. Any such finders need to be
+    cleared since the replacement distribution might be packaged differently,
+    e.g. a zipped egg distribution might get replaced with an unzipped egg
+    folder or vice versa. Having the old finders cached may then cause Python
+    to attempt loading modules from the replacement distribution using an
+    incorrect loader.
+
+    zipimport.zipimporter objects are Python loaders charged with importing
+    data packaged inside zip archives. If stale loaders referencing the
+    original distribution, are left behind, they can fail to load modules from
+    the replacement distribution. E.g. if an old zipimport.zipimporter instance
+    is used to load data from a new zipped egg archive, it may cause the
+    operation to attempt to locate the requested data in the wrong location -
+    one indicated by the original distribution's zip archive directory
+    information. Such an operation may then fail outright, e.g. report having
+    read a 'bad local file header', or even worse, it may fail silently &
+    return invalid data.
+
+    zipimport._zip_directory_cache contains cached zip archive directory
+    information for all existing zipimport.zipimporter instances and all such
+    instances connected to the same archive share the same cached directory
+    information.
+
+    If asked, and the underlying Python implementation allows it, we can fix
+    all existing zipimport.zipimporter instances instead of having to track
+    them down and remove them one by one, by updating their shared cached zip
+    archive directory information. This, of course, assumes that the
+    replacement distribution is packaged as a zipped egg.
+
+    If not asked to fix existing zipimport.zipimporter instances, we still do
+    our best to clear any remaining zipimport.zipimporter related cached data
+    that might somehow later get used when attempting to load data from the new
+    distribution and thus cause such load operations to fail. Note that when
+    tracking down such remaining stale data, we can not catch every conceivable
+    usage from here, and we clear only those that we know of and have found to
+    cause problems if left alive. Any remaining caches should be updated by
+    whomever is in charge of maintaining them, i.e. they should be ready to
+    handle us replacing their zip archives with new distributions at runtime.
+
+    """
+    # There are several other known sources of stale zipimport.zipimporter
+    # instances that we do not clear here, but might if ever given a reason to
+    # do so:
+    # * Global setuptools pkg_resources.working_set (a.k.a. 'master working
+    # set') may contain distributions which may in turn contain their
+    #   zipimport.zipimporter loaders.
+    # * Several zipimport.zipimporter loaders held by local variables further
+    #   up the function call stack when running the setuptools installation.
+    # * Already loaded modules may have their __loader__ attribute set to the
+    #   exact loader instance used when importing them. Python 3.4 docs state
+    #   that this information is intended mostly for introspection and so is
+    #   not expected to cause us problems.
+    normalized_path = normalize_path(dist_path)
+    _uncache(normalized_path, sys.path_importer_cache)
+    if fix_zipimporter_caches:
+        _replace_zip_directory_cache_data(normalized_path)
     else:
-        path = normalize_path(path)
-        for p in cache:
-            if normalize_path(p)==path:
-                del cache[p]
-                return
+        # Here, even though we do not want to fix existing and now stale
+        # zipimporter cache information, we still want to remove it. Related to
+        # Python's zip archive directory information cache, we clear each of
+        # its stale entries in two phases:
+        #   1. Clear the entry so attempting to access zip archive information
+        #      via any existing stale zipimport.zipimporter instances fails.
+        #   2. Remove the entry from the cache so any newly constructed
+        #      zipimport.zipimporter instances do not end up using old stale
+        #      zip archive directory information.
+        # This whole stale data removal step does not seem strictly necessary,
+        # but has been left in because it was done before we started replacing
+        # the zip archive directory information cache content if possible, and
+        # there are no relevant unit tests that we can depend on to tell us if
+        # this is really needed.
+        _remove_and_clear_zip_directory_cache_data(normalized_path)
+
+
+def _collect_zipimporter_cache_entries(normalized_path, cache):
+    """
+    Return zipimporter cache entry keys related to a given normalized path.
+
+    Alternative path spellings (e.g. those using different character case or
+    those using alternative path separators) related to the same path are
+    included. Any sub-path entries are included as well, i.e. those
+    corresponding to zip archives embedded in other zip archives.
+
+    """
+    result = []
+    prefix_len = len(normalized_path)
+    for p in cache:
+        np = normalize_path(p)
+        if np.startswith(normalized_path) and np[prefix_len : prefix_len + 1] in (
+            os.sep,
+            '',
+        ):
+            result.append(p)
+    return result
+
+
+def _update_zipimporter_cache(normalized_path, cache, updater=None):
+    """
+    Update zipimporter cache data for a given normalized path.
+
+    Any sub-path entries are processed as well, i.e. those corresponding to zip
+    archives embedded in other zip archives.
+
+    Given updater is a callable taking a cache entry key and the original entry
+    (after already removing the entry from the cache), and expected to update
+    the entry and possibly return a new one to be inserted in its place.
+    Returning None indicates that the entry should not be replaced with a new
+    one. If no updater is given, the cache entries are simply removed without
+    any additional processing, the same as if the updater simply returned None.
+
+    """
+    for p in _collect_zipimporter_cache_entries(normalized_path, cache):
+        # N.B. pypy's custom zipimport._zip_directory_cache implementation does
+        # not support the complete dict interface:
+        # * Does not support item assignment, thus not allowing this function
+        #    to be used only for removing existing cache entries.
+        #  * Does not support the dict.pop() method, forcing us to use the
+        #    get/del patterns instead. For more detailed information see the
+        #    following links:
+        #      https://github.com/pypa/setuptools/issues/202#issuecomment-202913420
+        #      https://foss.heptapod.net/pypy/pypy/-/blob/144c4e65cb6accb8e592f3a7584ea38265d1873c/pypy/module/zipimport/interp_zipimport.py
+        old_entry = cache[p]
+        del cache[p]
+        new_entry = updater and updater(p, old_entry)
+        if new_entry is not None:
+            cache[p] = new_entry
+
+
+def _uncache(normalized_path, cache):
+    _update_zipimporter_cache(normalized_path, cache)
+
+
+def _remove_and_clear_zip_directory_cache_data(normalized_path):
+    def clear_and_remove_cached_zip_archive_directory_data(path, old_entry):
+        old_entry.clear()
+
+    _update_zipimporter_cache(
+        normalized_path,
+        zipimport._zip_directory_cache,
+        updater=clear_and_remove_cached_zip_archive_directory_data,
+    )
+
+
+# PyPy Python implementation does not allow directly writing to the
+# zipimport._zip_directory_cache and so prevents us from attempting to correct
+# its content. The best we can do there is clear the problematic cache content
+# and have PyPy repopulate it as needed. The downside is that if there are any
+# stale zipimport.zipimporter instances laying around, attempting to use them
+# will fail due to not having its zip archive directory information available
+# instead of being automatically corrected to use the new correct zip archive
+# directory information.
+if '__pypy__' in sys.builtin_module_names:
+    _replace_zip_directory_cache_data = _remove_and_clear_zip_directory_cache_data
+else:
+
+    def _replace_zip_directory_cache_data(normalized_path):
+        def replace_cached_zip_archive_directory_data(path, old_entry):
+            # N.B. In theory, we could load the zip directory information just
+            # once for all updated path spellings, and then copy it locally and
+            # update its contained path strings to contain the correct
+            # spelling, but that seems like a way too invasive move (this cache
+            # structure is not officially documented anywhere and could in
+            # theory change with new Python releases) for no significant
+            # benefit.
+            old_entry.clear()
+            zipimport.zipimporter(path)
+            old_entry.update(zipimport._zip_directory_cache[path])
+            return old_entry
+
+        _update_zipimporter_cache(
+            normalized_path,
+            zipimport._zip_directory_cache,
+            updater=replace_cached_zip_archive_directory_data,
+        )
+
 
 def is_python(text, filename=''):
     "Is this string a valid Python script?"
@@ -1470,217 +1939,385 @@ def is_python(text, filename=''):
     else:
         return True
 
+
 def is_sh(executable):
     """Determine if the specified executable is a .sh (contains a #! line)"""
     try:
-        fp = open(executable)
-        magic = fp.read(2)
-        fp.close()
-    except (OSError,IOError): return executable
+        with open(executable, encoding='latin-1') as fp:
+            magic = fp.read(2)
+    except OSError:
+        return executable
     return magic == '#!'
 
+
 def nt_quote_arg(arg):
     """Quote a command line argument according to Windows parsing rules"""
+    return subprocess.list2cmdline([arg])
 
-    result = []
-    needquote = False
-    nb = 0
-
-    needquote = (" " in arg) or ("\t" in arg)
-    if needquote:
-        result.append('"')
-
-    for c in arg:
-        if c == '\\':
-            nb += 1
-        elif c == '"':
-            # double preceding backslashes, then add a \"
-            result.append('\\' * (nb*2) + '\\"')
-            nb = 0
-        else:
-            if nb:
-                result.append('\\' * nb)
-                nb = 0
-            result.append(c)
 
-    if nb:
-        result.append('\\' * nb)
+def is_python_script(script_text, filename):
+    """Is this text, as a whole, a Python script? (as opposed to shell/bat/etc."""
+    if filename.endswith('.py') or filename.endswith('.pyw'):
+        return True  # extension says it's Python
+    if is_python(script_text, filename):
+        return True  # it's syntactically valid Python
+    if script_text.startswith('#!'):
+        # It begins with a '#!' line, so check if 'python' is in it somewhere
+        return 'python' in script_text.splitlines()[0].lower()
 
-    if needquote:
-        result.append('\\' * nb)    # double the trailing backslashes
-        result.append('"')
+    return False  # Not any Python I can recognize
 
-    return ''.join(result)
 
+class _SplitArgs(TypedDict, total=False):
+    comments: bool
+    posix: bool
 
 
+class CommandSpec(list):
+    """
+    A command spec for a #! header, specified as a list of arguments akin to
+    those passed to Popen.
+    """
 
+    options: list[str] = []
+    split_args = _SplitArgs()
 
+    @classmethod
+    def best(cls):
+        """
+        Choose the best CommandSpec class based on environmental conditions.
+        """
+        return cls
 
+    @classmethod
+    def _sys_executable(cls):
+        _default = os.path.normpath(sys.executable)
+        return os.environ.get('__PYVENV_LAUNCHER__', _default)
 
+    @classmethod
+    def from_param(cls, param: Self | str | Iterable[str] | None) -> Self:
+        """
+        Construct a CommandSpec from a parameter to build_scripts, which may
+        be None.
+        """
+        if isinstance(param, cls):
+            return param
+        if isinstance(param, str):
+            return cls.from_string(param)
+        if isinstance(param, Iterable):
+            return cls(param)
+        if param is None:
+            return cls.from_environment()
+        raise TypeError(f"Argument has an unsupported type {type(param)}")
+
+    @classmethod
+    def from_environment(cls):
+        return cls([cls._sys_executable()])
+
+    @classmethod
+    def from_string(cls, string: str) -> Self:
+        """
+        Construct a command spec from a simple string representing a command
+        line parseable by shlex.split.
+        """
+        items = shlex.split(string, **cls.split_args)
+        return cls(items)
 
+    def install_options(self, script_text: str):
+        self.options = shlex.split(self._extract_options(script_text))
+        cmdline = subprocess.list2cmdline(self)
+        if not isascii(cmdline):
+            self.options[:0] = ['-x']
 
-def is_python_script(script_text, filename):
-    """Is this text, as a whole, a Python script? (as opposed to shell/bat/etc.
-    """
-    if filename.endswith('.py') or filename.endswith('.pyw'):
-        return True     # extension says it's Python
-    if is_python(script_text, filename):
-        return True     # it's syntactically valid Python
-    if script_text.startswith('#!'):
-        # It begins with a '#!' line, so check if 'python' is in it somewhere
-        return 'python' in script_text.splitlines()[0].lower()
+    @staticmethod
+    def _extract_options(orig_script):
+        """
+        Extract any options from the first line of the script.
+        """
+        first = (orig_script + '\n').splitlines()[0]
+        match = _first_line_re().match(first)
+        options = match.group(1) or '' if match else ''
+        return options.strip()
+
+    def as_header(self):
+        return self._render(self + list(self.options))
+
+    @staticmethod
+    def _strip_quotes(item):
+        _QUOTES = '"\''
+        for q in _QUOTES:
+            if item.startswith(q) and item.endswith(q):
+                return item[1:-1]
+        return item
+
+    @staticmethod
+    def _render(items):
+        cmdline = subprocess.list2cmdline(
+            CommandSpec._strip_quotes(item.strip()) for item in items
+        )
+        return '#!' + cmdline + '\n'
 
-    return False    # Not any Python I can recognize
 
-try:
-    from os import chmod as _chmod
-except ImportError:
-    # Jython compatibility
-    def _chmod(*args): pass
+# For pbr compat; will be removed in a future version.
+sys_executable = CommandSpec._sys_executable()
 
-def chmod(path, mode):
-    log.debug("changing mode of %s to %o", path, mode)
-    try:
-        _chmod(path, mode)
-    except os.error, e:
-        log.debug("chmod failed: %s", e)
-
-def fix_jython_executable(executable, options):
-    if sys.platform.startswith('java') and is_sh(executable):
-        # Workaround Jython's sys.executable being a .sh (an invalid
-        # shebang line interpreter)
-        if options:
-            # Can't apply the workaround, leave it broken
-            log.warn("WARNING: Unable to adapt shebang line for Jython,"
-                             " the following script is NOT executable\n"
-                     "         see http://bugs.jython.org/issue1112 for"
-                             " more information.")
-        else:
-            return '/usr/bin/env %s' % executable
-    return executable
-
-
-def get_script_args(dist, executable=sys_executable, wininst=False):
-    """Yield write_script() argument tuples for a distribution's entrypoints"""
-    spec = str(dist.as_requirement())
-    header = get_script_header("", executable, wininst)
-    for group in 'console_scripts', 'gui_scripts':
-        for name,ep in dist.get_entry_map(group).items():
-            script_text = (
-                "# EASY-INSTALL-ENTRY-SCRIPT: %(spec)r,%(group)r,%(name)r\n"
-                "__requires__ = %(spec)r\n"
-                "import sys\n"
-                "from pkg_resources import load_entry_point\n"
-                "\n"
-                "sys.exit(\n"
-                "   load_entry_point(%(spec)r, %(group)r, %(name)r)()\n"
-                ")\n"
-            ) % locals()
-            if sys.platform=='win32' or wininst:
-                # On Windows/wininst, add a .py extension and an .exe launcher
-                if group=='gui_scripts':
-                    ext, launcher = '-script.pyw', 'gui.exe'
-                    old = ['.pyw']
-                    new_header = re.sub('(?i)python.exe','pythonw.exe',header)
-                else:
-                    ext, launcher = '-script.py', 'cli.exe'
-                    old = ['.py','.pyc','.pyo']
-                    new_header = re.sub('(?i)pythonw.exe','python.exe',header)
 
-                if os.path.exists(new_header[2:-1]) or sys.platform!='win32':
-                    hdr = new_header
-                else:
-                    hdr = header
-                yield (name+ext, hdr+script_text, 't', [name+x for x in old])
-                yield (
-                    name+'.exe', resource_string('setuptools', launcher),
-                    'b' # write in binary mode
-                )
-            else:
-                # On other platforms, we assume the right thing to do is to
-                # just write the stub with no extension.
-                yield (name, header+script_text)
+class WindowsCommandSpec(CommandSpec):
+    split_args = _SplitArgs(posix=False)
 
-def rmtree(path, ignore_errors=False, onerror=auto_chmod):
-    """Recursively delete a directory tree.
 
-    This code is taken from the Python 2.4 version of 'shutil', because
-    the 2.3 version doesn't really work right.
+class ScriptWriter:
     """
-    if ignore_errors:
-        def onerror(*args):
-            pass
-    elif onerror is None:
-        def onerror(*args):
-            raise
-    names = []
-    try:
-        names = os.listdir(path)
-    except os.error, err:
-        onerror(os.listdir, path, sys.exc_info())
-    for name in names:
-        fullname = os.path.join(path, name)
+    Encapsulates behavior around writing entry point scripts for console and
+    gui apps.
+    """
+
+    template = textwrap.dedent(
+        r"""
+        # EASY-INSTALL-ENTRY-SCRIPT: %(spec)r,%(group)r,%(name)r
+        import re
+        import sys
+
+        # for compatibility with easy_install; see #2198
+        __requires__ = %(spec)r
+
         try:
-            mode = os.lstat(fullname).st_mode
-        except os.error:
-            mode = 0
-        if stat.S_ISDIR(mode):
-            rmtree(fullname, ignore_errors, onerror)
-        else:
+            from importlib.metadata import distribution
+        except ImportError:
             try:
-                os.remove(fullname)
-            except os.error, err:
-                onerror(os.remove, fullname, sys.exc_info())
-    try:
-        os.rmdir(path)
-    except os.error:
-        onerror(os.rmdir, path, sys.exc_info())
+                from importlib_metadata import distribution
+            except ImportError:
+                from pkg_resources import load_entry_point
 
-def bootstrap():
-    # This function is called when setuptools*.egg is run using /bin/sh
-    import setuptools; argv0 = os.path.dirname(setuptools.__path__[0])
-    sys.argv[0] = argv0; sys.argv.append(argv0); main()
 
+        def importlib_load_entry_point(spec, group, name):
+            dist_name, _, _ = spec.partition('==')
+            matches = (
+                entry_point
+                for entry_point in distribution(dist_name).entry_points
+                if entry_point.group == group and entry_point.name == name
+            )
+            return next(matches).load()
 
-def main(argv=None, **kw):
-    from setuptools import setup
-    from setuptools.dist import Distribution
-    import distutils.core
 
-    USAGE = """\
-usage: %(script)s [options] requirement_or_url ...
-   or: %(script)s --help
-"""
+        globals().setdefault('load_entry_point', importlib_load_entry_point)
 
-    def gen_usage (script_name):
-        script = os.path.basename(script_name)
-        return USAGE % vars()
 
-    def with_ei_usage(f):
-        old_gen_usage = distutils.core.gen_usage
-        try:
-            distutils.core.gen_usage = gen_usage
-            return f()
-        finally:
-            distutils.core.gen_usage = old_gen_usage
+        if __name__ == '__main__':
+            sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+            sys.exit(load_entry_point(%(spec)r, %(group)r, %(name)r)())
+        """
+    ).lstrip()
 
-    class DistributionWithoutHelpCommands(Distribution):
-        common_usage = ""
-        def _show_help(self,*args,**kw):
-            with_ei_usage(lambda: Distribution._show_help(self,*args,**kw))
+    command_spec_class = CommandSpec
 
-    if argv is None:
-        argv = sys.argv[1:]
+    @classmethod
+    def get_args(cls, dist, header=None):
+        """
+        Yield write_script() argument tuples for a distribution's
+        console_scripts and gui_scripts entry points.
+        """
+        if header is None:
+            header = cls.get_header()
+        spec = str(dist.as_requirement())
+        for type_ in 'console', 'gui':
+            group = type_ + '_scripts'
+            for name in dist.get_entry_map(group).keys():
+                cls._ensure_safe_name(name)
+                script_text = cls.template % locals()
+                args = cls._get_script_args(type_, name, header, script_text)
+                yield from args
+
+    @staticmethod
+    def _ensure_safe_name(name):
+        """
+        Prevent paths in *_scripts entry point names.
+        """
+        has_path_sep = re.search(r'[\\/]', name)
+        if has_path_sep:
+            raise ValueError("Path separators not allowed in script names")
 
-    with_ei_usage(lambda:
-        setup(
-            script_args = ['-q','easy_install', '-v']+argv,
-            script_name = sys.argv[0] or 'easy_install',
-            distclass=DistributionWithoutHelpCommands, **kw
+    @classmethod
+    def best(cls):
+        """
+        Select the best ScriptWriter for this environment.
+        """
+        if sys.platform == 'win32' or (os.name == 'java' and os._name == 'nt'):
+            return WindowsScriptWriter.best()
+        else:
+            return cls
+
+    @classmethod
+    def _get_script_args(cls, type_, name, header, script_text):
+        # Simply write the stub with no extension.
+        yield (name, header + script_text)
+
+    @classmethod
+    def get_header(
+        cls,
+        script_text: str = "",
+        executable: str | CommandSpec | Iterable[str] | None = None,
+    ) -> str:
+        """Create a #! line, getting options (if any) from script_text"""
+        cmd = cls.command_spec_class.best().from_param(executable)
+        cmd.install_options(script_text)
+        return cmd.as_header()
+
+
+class WindowsScriptWriter(ScriptWriter):
+    command_spec_class = WindowsCommandSpec
+
+    @classmethod
+    def best(cls):
+        """
+        Select the best ScriptWriter suitable for Windows
+        """
+        writer_lookup = dict(
+            executable=WindowsExecutableLauncherWriter,
+            natural=cls,
         )
-    )
+        # for compatibility, use the executable launcher by default
+        launcher = os.environ.get('SETUPTOOLS_LAUNCHER', 'executable')
+        return writer_lookup[launcher]
+
+    @classmethod
+    def _get_script_args(cls, type_, name, header, script_text):
+        "For Windows, add a .py extension"
+        ext = dict(console='.pya', gui='.pyw')[type_]
+        if ext not in os.environ['PATHEXT'].lower().split(';'):
+            msg = (
+                "{ext} not listed in PATHEXT; scripts will not be "
+                "recognized as executables."
+            ).format(**locals())
+            SetuptoolsWarning.emit(msg)
+        old = ['.pya', '.py', '-script.py', '.pyc', '.pyo', '.pyw', '.exe']
+        old.remove(ext)
+        header = cls._adjust_header(type_, header)
+        blockers = [name + x for x in old]
+        yield name + ext, header + script_text, 't', blockers
+
+    @classmethod
+    def _adjust_header(cls, type_, orig_header):
+        """
+        Make sure 'pythonw' is used for gui and 'python' is used for
+        console (regardless of what sys.executable is).
+        """
+        pattern = 'pythonw.exe'
+        repl = 'python.exe'
+        if type_ == 'gui':
+            pattern, repl = repl, pattern
+        pattern_ob = re.compile(re.escape(pattern), re.IGNORECASE)
+        new_header = pattern_ob.sub(string=orig_header, repl=repl)
+        return new_header if cls._use_header(new_header) else orig_header
+
+    @staticmethod
+    def _use_header(new_header):
+        """
+        Should _adjust_header use the replaced header?
+
+        On non-windows systems, always use. On
+        Windows systems, only use the replaced header if it resolves
+        to an executable on the system.
+        """
+        clean_header = new_header[2:-1].strip('"')
+        return sys.platform != 'win32' or shutil.which(clean_header)
+
+
+class WindowsExecutableLauncherWriter(WindowsScriptWriter):
+    @classmethod
+    def _get_script_args(cls, type_, name, header, script_text):
+        """
+        For Windows, add a .py extension and an .exe launcher
+        """
+        if type_ == 'gui':
+            launcher_type = 'gui'
+            ext = '-script.pyw'
+            old = ['.pyw']
+        else:
+            launcher_type = 'cli'
+            ext = '-script.py'
+            old = ['.py', '.pyc', '.pyo']
+        hdr = cls._adjust_header(type_, header)
+        blockers = [name + x for x in old]
+        yield (name + ext, hdr + script_text, 't', blockers)
+        yield (
+            name + '.exe',
+            get_win_launcher(launcher_type),
+            'b',  # write in binary mode
+        )
+        if not is_64bit():
+            # install a manifest for the launcher to prevent Windows
+            # from detecting it as an installer (which it will for
+            #  launchers like easy_install.exe). Consider only
+            #  adding a manifest for launchers detected as installers.
+            #  See Distribute #143 for details.
+            m_name = name + '.exe.manifest'
+            yield (m_name, load_launcher_manifest(name), 't')
 
 
+def get_win_launcher(type):
+    """
+    Load the Windows launcher (executable) suitable for launching a script.
 
+    `type` should be either 'cli' or 'gui'
 
+    Returns the executable as a byte string.
+    """
+    launcher_fn = f'{type}.exe'
+    if is_64bit():
+        if get_platform() == "win-arm64":
+            launcher_fn = launcher_fn.replace(".", "-arm64.")
+        else:
+            launcher_fn = launcher_fn.replace(".", "-64.")
+    else:
+        launcher_fn = launcher_fn.replace(".", "-32.")
+    return resource_string('setuptools', launcher_fn)
+
+
+def load_launcher_manifest(name):
+    manifest = pkg_resources.resource_string(__name__, 'launcher manifest.xml')
+    return manifest.decode('utf-8') % vars()
+
+
+def current_umask():
+    tmp = os.umask(0o022)
+    os.umask(tmp)
+    return tmp
+
+
+def only_strs(values):
+    """
+    Exclude non-str values. Ref #3063.
+    """
+    return filter(lambda val: isinstance(val, str), values)
+
+
+def _read_pth(fullname: str) -> str:
+    # Python<3.13 require encoding="locale" instead of "utf-8", see python/cpython#77102
+    # In the case old versions of setuptools are producing `pth` files with
+    # different encodings that might be problematic... So we fallback to "locale".
+
+    try:
+        with open(fullname, encoding=py312.PTH_ENCODING) as f:
+            return f.read()
+    except UnicodeDecodeError:  # pragma: no cover
+        # This error may only happen for Python >= 3.13
+        # TODO: Possible deprecation warnings to be added in the future:
+        #       ``.pth file {fullname!r} is not UTF-8.``
+        #       Your environment contain {fullname!r} that cannot be read as UTF-8.
+        #       This is likely to have been produced with an old version of setuptools.
+        #       Please be mindful that this is deprecated and in the future, non-utf8
+        #       .pth files may cause setuptools to fail.
+        with open(fullname, encoding=py39.LOCALE_ENCODING) as f:
+            return f.read()
+
+
+class EasyInstallDeprecationWarning(SetuptoolsDeprecationWarning):
+    _SUMMARY = "easy_install command is deprecated."
+    _DETAILS = """
+    Please avoid running ``setup.py`` and ``easy_install``.
+    Instead, use pypa/build, pypa/installer or other
+    standards-based tools.
+    """
+    _SEE_URL = "https://github.com/pypa/setuptools/issues/917"
+    # _DUE_DATE not defined yet
diff --git a/setuptools/command/editable_wheel.py b/setuptools/command/editable_wheel.py
new file mode 100644
index 0000000000..1a544ec258
--- /dev/null
+++ b/setuptools/command/editable_wheel.py
@@ -0,0 +1,925 @@
+"""
+Create a wheel that, when installed, will make the source package 'editable'
+(add it to the interpreter's path, including metadata) per PEP 660. Replaces
+'setup.py develop'.
+
+.. note::
+   One of the mechanisms briefly mentioned in PEP 660 to implement editable installs is
+   to create a separated directory inside ``build`` and use a .pth file to point to that
+   directory. In the context of this file such directory is referred as
+   *auxiliary build directory* or ``auxiliary_dir``.
+"""
+
+from __future__ import annotations
+
+import io
+import logging
+import os
+import shutil
+import traceback
+from collections.abc import Iterable, Iterator, Mapping
+from contextlib import suppress
+from enum import Enum
+from inspect import cleandoc
+from itertools import chain, starmap
+from pathlib import Path
+from tempfile import TemporaryDirectory
+from types import TracebackType
+from typing import TYPE_CHECKING, Protocol, TypeVar, cast
+
+from .. import Command, _normalization, _path, _shutil, errors, namespaces
+from .._path import StrPath
+from ..compat import py312
+from ..discovery import find_package_path
+from ..dist import Distribution
+from ..warnings import InformationOnly, SetuptoolsDeprecationWarning, SetuptoolsWarning
+from .build import build as build_cls
+from .build_py import build_py as build_py_cls
+from .dist_info import dist_info as dist_info_cls
+from .egg_info import egg_info as egg_info_cls
+from .install import install as install_cls
+from .install_scripts import install_scripts as install_scripts_cls
+
+if TYPE_CHECKING:
+    from typing_extensions import Self
+
+    from .._vendor.wheel.wheelfile import WheelFile
+
+_P = TypeVar("_P", bound=StrPath)
+_logger = logging.getLogger(__name__)
+
+
+class _EditableMode(Enum):
+    """
+    Possible editable installation modes:
+    `lenient` (new files automatically added to the package - DEFAULT);
+    `strict` (requires a new installation when files are added/removed); or
+    `compat` (attempts to emulate `python setup.py develop` - DEPRECATED).
+    """
+
+    STRICT = "strict"
+    LENIENT = "lenient"
+    COMPAT = "compat"  # TODO: Remove `compat` after Dec/2022.
+
+    @classmethod
+    def convert(cls, mode: str | None) -> _EditableMode:
+        if not mode:
+            return _EditableMode.LENIENT  # default
+
+        _mode = mode.upper()
+        if _mode not in _EditableMode.__members__:
+            raise errors.OptionError(f"Invalid editable mode: {mode!r}. Try: 'strict'.")
+
+        if _mode == "COMPAT":
+            SetuptoolsDeprecationWarning.emit(
+                "Compat editable installs",
+                """
+                The 'compat' editable mode is transitional and will be removed
+                in future versions of `setuptools`.
+                Please adapt your code accordingly to use either the 'strict' or the
+                'lenient' modes.
+                """,
+                see_docs="userguide/development_mode.html",
+                # TODO: define due_date
+                # There is a series of shortcomings with the available editable install
+                # methods, and they are very controversial. This is something that still
+                # needs work.
+                # Moreover, `pip` is still hiding this warning, so users are not aware.
+            )
+
+        return _EditableMode[_mode]
+
+
+_STRICT_WARNING = """
+New or renamed files may not be automatically picked up without a new installation.
+"""
+
+_LENIENT_WARNING = """
+Options like `package-data`, `include/exclude-package-data` or
+`packages.find.exclude/include` may have no effect.
+"""
+
+
+class editable_wheel(Command):
+    """Build 'editable' wheel for development.
+    This command is private and reserved for internal use of setuptools,
+    users should rely on ``setuptools.build_meta`` APIs.
+    """
+
+    description = "DO NOT CALL DIRECTLY, INTERNAL ONLY: create PEP 660 editable wheel"
+
+    user_options = [
+        ("dist-dir=", "d", "directory to put final built distributions in"),
+        ("dist-info-dir=", "I", "path to a pre-build .dist-info directory"),
+        ("mode=", None, cleandoc(_EditableMode.__doc__ or "")),
+    ]
+
+    def initialize_options(self):
+        self.dist_dir = None
+        self.dist_info_dir = None
+        self.project_dir = None
+        self.mode = None
+
+    def finalize_options(self) -> None:
+        dist = self.distribution
+        self.project_dir = dist.src_root or os.curdir
+        self.package_dir = dist.package_dir or {}
+        self.dist_dir = Path(self.dist_dir or os.path.join(self.project_dir, "dist"))
+
+    def run(self) -> None:
+        try:
+            self.dist_dir.mkdir(exist_ok=True)
+            self._ensure_dist_info()
+
+            # Add missing dist_info files
+            self.reinitialize_command("bdist_wheel")
+            bdist_wheel = self.get_finalized_command("bdist_wheel")
+            bdist_wheel.write_wheelfile(self.dist_info_dir)
+
+            self._create_wheel_file(bdist_wheel)
+        except Exception:
+            traceback.print_exc()
+            project = self.distribution.name or self.distribution.get_name()
+            _DebuggingTips.emit(project=project)
+            raise
+
+    def _ensure_dist_info(self):
+        if self.dist_info_dir is None:
+            dist_info = cast(dist_info_cls, self.reinitialize_command("dist_info"))
+            dist_info.output_dir = self.dist_dir
+            dist_info.ensure_finalized()
+            dist_info.run()
+            self.dist_info_dir = dist_info.dist_info_dir
+        else:
+            assert str(self.dist_info_dir).endswith(".dist-info")
+            assert Path(self.dist_info_dir, "METADATA").exists()
+
+    def _install_namespaces(self, installation_dir, pth_prefix):
+        # XXX: Only required to support the deprecated namespace practice
+        dist = self.distribution
+        if not dist.namespace_packages:
+            return
+
+        src_root = Path(self.project_dir, self.package_dir.get("", ".")).resolve()
+        installer = _NamespaceInstaller(dist, installation_dir, pth_prefix, src_root)
+        installer.install_namespaces()
+
+    def _find_egg_info_dir(self) -> str | None:
+        parent_dir = Path(self.dist_info_dir).parent if self.dist_info_dir else Path()
+        candidates = map(str, parent_dir.glob("*.egg-info"))
+        return next(candidates, None)
+
+    def _configure_build(
+        self, name: str, unpacked_wheel: StrPath, build_lib: StrPath, tmp_dir: StrPath
+    ):
+        """Configure commands to behave in the following ways:
+
+        - Build commands can write to ``build_lib`` if they really want to...
+          (but this folder is expected to be ignored and modules are expected to live
+          in the project directory...)
+        - Binary extensions should be built in-place (editable_mode = True)
+        - Data/header/script files are not part of the "editable" specification
+          so they are written directly to the unpacked_wheel directory.
+        """
+        # Non-editable files (data, headers, scripts) are written directly to the
+        # unpacked_wheel
+
+        dist = self.distribution
+        wheel = str(unpacked_wheel)
+        build_lib = str(build_lib)
+        data = str(Path(unpacked_wheel, f"{name}.data", "data"))
+        headers = str(Path(unpacked_wheel, f"{name}.data", "headers"))
+        scripts = str(Path(unpacked_wheel, f"{name}.data", "scripts"))
+
+        # egg-info may be generated again to create a manifest (used for package data)
+        egg_info = cast(
+            egg_info_cls, dist.reinitialize_command("egg_info", reinit_subcommands=True)
+        )
+        egg_info.egg_base = str(tmp_dir)
+        egg_info.ignore_egg_info_in_manifest = True
+
+        build = cast(
+            build_cls, dist.reinitialize_command("build", reinit_subcommands=True)
+        )
+        install = cast(
+            install_cls, dist.reinitialize_command("install", reinit_subcommands=True)
+        )
+
+        build.build_platlib = build.build_purelib = build.build_lib = build_lib
+        install.install_purelib = install.install_platlib = install.install_lib = wheel
+        install.install_scripts = build.build_scripts = scripts
+        install.install_headers = headers
+        install.install_data = data
+
+        install_scripts = cast(
+            install_scripts_cls, dist.get_command_obj("install_scripts")
+        )
+        install_scripts.no_ep = True
+
+        build.build_temp = str(tmp_dir)
+
+        build_py = cast(build_py_cls, dist.get_command_obj("build_py"))
+        build_py.compile = False
+        build_py.existing_egg_info_dir = self._find_egg_info_dir()
+
+        self._set_editable_mode()
+
+        build.ensure_finalized()
+        install.ensure_finalized()
+
+    def _set_editable_mode(self):
+        """Set the ``editable_mode`` flag in the build sub-commands"""
+        dist = self.distribution
+        build = dist.get_command_obj("build")
+        for cmd_name in build.get_sub_commands():
+            cmd = dist.get_command_obj(cmd_name)
+            if hasattr(cmd, "editable_mode"):
+                cmd.editable_mode = True
+            elif hasattr(cmd, "inplace"):
+                cmd.inplace = True  # backward compatibility with distutils
+
+    def _collect_build_outputs(self) -> tuple[list[str], dict[str, str]]:
+        files: list[str] = []
+        mapping: dict[str, str] = {}
+        build = self.get_finalized_command("build")
+
+        for cmd_name in build.get_sub_commands():
+            cmd = self.get_finalized_command(cmd_name)
+            if hasattr(cmd, "get_outputs"):
+                files.extend(cmd.get_outputs() or [])
+            if hasattr(cmd, "get_output_mapping"):
+                mapping.update(cmd.get_output_mapping() or {})
+
+        return files, mapping
+
+    def _run_build_commands(
+        self,
+        dist_name: str,
+        unpacked_wheel: StrPath,
+        build_lib: StrPath,
+        tmp_dir: StrPath,
+    ) -> tuple[list[str], dict[str, str]]:
+        self._configure_build(dist_name, unpacked_wheel, build_lib, tmp_dir)
+        self._run_build_subcommands()
+        files, mapping = self._collect_build_outputs()
+        self._run_install("headers")
+        self._run_install("scripts")
+        self._run_install("data")
+        return files, mapping
+
+    def _run_build_subcommands(self) -> None:
+        """
+        Issue #3501 indicates that some plugins/customizations might rely on:
+
+        1. ``build_py`` not running
+        2. ``build_py`` always copying files to ``build_lib``
+
+        However both these assumptions may be false in editable_wheel.
+        This method implements a temporary workaround to support the ecosystem
+        while the implementations catch up.
+        """
+        # TODO: Once plugins/customizations had the chance to catch up, replace
+        #       `self._run_build_subcommands()` with `self.run_command("build")`.
+        #       Also remove _safely_run, TestCustomBuildPy. Suggested date: Aug/2023.
+        build = self.get_finalized_command("build")
+        for name in build.get_sub_commands():
+            cmd = self.get_finalized_command(name)
+            if name == "build_py" and type(cmd) is not build_py_cls:
+                self._safely_run(name)
+            else:
+                self.run_command(name)
+
+    def _safely_run(self, cmd_name: str):
+        try:
+            return self.run_command(cmd_name)
+        except Exception:
+            SetuptoolsDeprecationWarning.emit(
+                "Customization incompatible with editable install",
+                f"""
+                {traceback.format_exc()}
+
+                If you are seeing this warning it is very likely that a setuptools
+                plugin or customization overrides the `{cmd_name}` command, without
+                taking into consideration how editable installs run build steps
+                starting from setuptools v64.0.0.
+
+                Plugin authors and developers relying on custom build steps are
+                encouraged to update their `{cmd_name}` implementation considering the
+                information about editable installs in
+                https://setuptools.pypa.io/en/latest/userguide/extension.html.
+
+                For the time being `setuptools` will silence this error and ignore
+                the faulty command, but this behavior will change in future versions.
+                """,
+                # TODO: define due_date
+                # There is a series of shortcomings with the available editable install
+                # methods, and they are very controversial. This is something that still
+                # needs work.
+            )
+
+    def _create_wheel_file(self, bdist_wheel):
+        from wheel.wheelfile import WheelFile
+
+        dist_info = self.get_finalized_command("dist_info")
+        dist_name = dist_info.name
+        tag = "-".join(bdist_wheel.get_tag())
+        build_tag = "0.editable"  # According to PEP 427 needs to start with digit
+        archive_name = f"{dist_name}-{build_tag}-{tag}.whl"
+        wheel_path = Path(self.dist_dir, archive_name)
+        if wheel_path.exists():
+            wheel_path.unlink()
+
+        unpacked_wheel = TemporaryDirectory(suffix=archive_name)
+        build_lib = TemporaryDirectory(suffix=".build-lib")
+        build_tmp = TemporaryDirectory(suffix=".build-temp")
+
+        with unpacked_wheel as unpacked, build_lib as lib, build_tmp as tmp:
+            unpacked_dist_info = Path(unpacked, Path(self.dist_info_dir).name)
+            shutil.copytree(self.dist_info_dir, unpacked_dist_info)
+            self._install_namespaces(unpacked, dist_name)
+            files, mapping = self._run_build_commands(dist_name, unpacked, lib, tmp)
+            strategy = self._select_strategy(dist_name, tag, lib)
+            with strategy, WheelFile(wheel_path, "w") as wheel_obj:
+                strategy(wheel_obj, files, mapping)
+                wheel_obj.write_files(unpacked)
+
+        return wheel_path
+
+    def _run_install(self, category: str):
+        has_category = getattr(self.distribution, f"has_{category}", None)
+        if has_category and has_category():
+            _logger.info(f"Installing {category} as non editable")
+            self.run_command(f"install_{category}")
+
+    def _select_strategy(
+        self,
+        name: str,
+        tag: str,
+        build_lib: StrPath,
+    ) -> EditableStrategy:
+        """Decides which strategy to use to implement an editable installation."""
+        build_name = f"__editable__.{name}-{tag}"
+        project_dir = Path(self.project_dir)
+        mode = _EditableMode.convert(self.mode)
+
+        if mode is _EditableMode.STRICT:
+            auxiliary_dir = _empty_dir(Path(self.project_dir, "build", build_name))
+            return _LinkTree(self.distribution, name, auxiliary_dir, build_lib)
+
+        packages = _find_packages(self.distribution)
+        has_simple_layout = _simple_layout(packages, self.package_dir, project_dir)
+        is_compat_mode = mode is _EditableMode.COMPAT
+        if set(self.package_dir) == {""} and has_simple_layout or is_compat_mode:
+            # src-layout(ish) is relatively safe for a simple pth file
+            src_dir = self.package_dir.get("", ".")
+            return _StaticPth(self.distribution, name, [Path(project_dir, src_dir)])
+
+        # Use a MetaPathFinder to avoid adding accidental top-level packages/modules
+        return _TopLevelFinder(self.distribution, name)
+
+
+class EditableStrategy(Protocol):
+    def __call__(
+        self, wheel: WheelFile, files: list[str], mapping: Mapping[str, str]
+    ) -> object: ...
+    def __enter__(self) -> Self: ...
+    def __exit__(
+        self,
+        _exc_type: type[BaseException] | None,
+        _exc_value: BaseException | None,
+        _traceback: TracebackType | None,
+    ) -> object: ...
+
+
+class _StaticPth:
+    def __init__(self, dist: Distribution, name: str, path_entries: list[Path]) -> None:
+        self.dist = dist
+        self.name = name
+        self.path_entries = path_entries
+
+    def __call__(self, wheel: WheelFile, files: list[str], mapping: Mapping[str, str]):
+        entries = "\n".join(str(p.resolve()) for p in self.path_entries)
+        contents = _encode_pth(f"{entries}\n")
+        wheel.writestr(f"__editable__.{self.name}.pth", contents)
+
+    def __enter__(self) -> Self:
+        msg = f"""
+        Editable install will be performed using .pth file to extend `sys.path` with:
+        {list(map(os.fspath, self.path_entries))!r}
+        """
+        _logger.warning(msg + _LENIENT_WARNING)
+        return self
+
+    def __exit__(
+        self,
+        _exc_type: object,
+        _exc_value: object,
+        _traceback: object,
+    ) -> None:
+        pass
+
+
+class _LinkTree(_StaticPth):
+    """
+    Creates a ``.pth`` file that points to a link tree in the ``auxiliary_dir``.
+
+    This strategy will only link files (not dirs), so it can be implemented in
+    any OS, even if that means using hardlinks instead of symlinks.
+
+    By collocating ``auxiliary_dir`` and the original source code, limitations
+    with hardlinks should be avoided.
+    """
+
+    def __init__(
+        self,
+        dist: Distribution,
+        name: str,
+        auxiliary_dir: StrPath,
+        build_lib: StrPath,
+    ) -> None:
+        self.auxiliary_dir = Path(auxiliary_dir)
+        self.build_lib = Path(build_lib).resolve()
+        self._file = dist.get_command_obj("build_py").copy_file
+        super().__init__(dist, name, [self.auxiliary_dir])
+
+    def __call__(self, wheel: WheelFile, files: list[str], mapping: Mapping[str, str]):
+        self._create_links(files, mapping)
+        super().__call__(wheel, files, mapping)
+
+    def _normalize_output(self, file: str) -> str | None:
+        # Files relative to build_lib will be normalized to None
+        with suppress(ValueError):
+            path = Path(file).resolve().relative_to(self.build_lib)
+            return str(path).replace(os.sep, '/')
+        return None
+
+    def _create_file(self, relative_output: str, src_file: str, link=None):
+        dest = self.auxiliary_dir / relative_output
+        if not dest.parent.is_dir():
+            dest.parent.mkdir(parents=True)
+        self._file(src_file, dest, link=link)
+
+    def _create_links(self, outputs, output_mapping: Mapping[str, str]):
+        self.auxiliary_dir.mkdir(parents=True, exist_ok=True)
+        link_type = "sym" if _can_symlink_files(self.auxiliary_dir) else "hard"
+        normalised = ((self._normalize_output(k), v) for k, v in output_mapping.items())
+        # remove files that are not relative to build_lib
+        mappings = {k: v for k, v in normalised if k is not None}
+
+        for output in outputs:
+            relative = self._normalize_output(output)
+            if relative and relative not in mappings:
+                self._create_file(relative, output)
+
+        for relative, src in mappings.items():
+            self._create_file(relative, src, link=link_type)
+
+    def __enter__(self) -> Self:
+        msg = "Strict editable install will be performed using a link tree.\n"
+        _logger.warning(msg + _STRICT_WARNING)
+        return self
+
+    def __exit__(
+        self,
+        _exc_type: object,
+        _exc_value: object,
+        _traceback: object,
+    ) -> None:
+        msg = f"""\n
+        Strict editable installation performed using the auxiliary directory:
+            {self.auxiliary_dir}
+
+        Please be careful to not remove this directory, otherwise you might not be able
+        to import/use your package.
+        """
+        InformationOnly.emit("Editable installation.", msg)
+
+
+class _TopLevelFinder:
+    def __init__(self, dist: Distribution, name: str) -> None:
+        self.dist = dist
+        self.name = name
+
+    def template_vars(self) -> tuple[str, str, dict[str, str], dict[str, list[str]]]:
+        src_root = self.dist.src_root or os.curdir
+        top_level = chain(_find_packages(self.dist), _find_top_level_modules(self.dist))
+        package_dir = self.dist.package_dir or {}
+        roots = _find_package_roots(top_level, package_dir, src_root)
+
+        namespaces_ = dict(
+            chain(
+                _find_namespaces(self.dist.packages or [], roots),
+                ((ns, []) for ns in _find_virtual_namespaces(roots)),
+            )
+        )
+
+        legacy_namespaces = {
+            pkg: find_package_path(pkg, roots, self.dist.src_root or "")
+            for pkg in self.dist.namespace_packages or []
+        }
+
+        mapping = {**roots, **legacy_namespaces}
+        # ^-- We need to explicitly add the legacy_namespaces to the mapping to be
+        #     able to import their modules even if another package sharing the same
+        #     namespace is installed in a conventional (non-editable) way.
+
+        name = f"__editable__.{self.name}.finder"
+        finder = _normalization.safe_identifier(name)
+        return finder, name, mapping, namespaces_
+
+    def get_implementation(self) -> Iterator[tuple[str, bytes]]:
+        finder, name, mapping, namespaces_ = self.template_vars()
+
+        content = bytes(_finder_template(name, mapping, namespaces_), "utf-8")
+        yield (f"{finder}.py", content)
+
+        content = _encode_pth(f"import {finder}; {finder}.install()")
+        yield (f"__editable__.{self.name}.pth", content)
+
+    def __call__(self, wheel: WheelFile, files: list[str], mapping: Mapping[str, str]):
+        for file, content in self.get_implementation():
+            wheel.writestr(file, content)
+
+    def __enter__(self) -> Self:
+        msg = "Editable install will be performed using a meta path finder.\n"
+        _logger.warning(msg + _LENIENT_WARNING)
+        return self
+
+    def __exit__(
+        self,
+        _exc_type: object,
+        _exc_value: object,
+        _traceback: object,
+    ) -> None:
+        msg = """\n
+        Please be careful with folders in your working directory with the same
+        name as your package as they may take precedence during imports.
+        """
+        InformationOnly.emit("Editable installation.", msg)
+
+
+def _encode_pth(content: str) -> bytes:
+    """
+    Prior to Python 3.13 (see https://github.com/python/cpython/issues/77102),
+    .pth files are always read with 'locale' encoding, the recommendation
+    from the cpython core developers is to write them as ``open(path, "w")``
+    and ignore warnings (see python/cpython#77102, pypa/setuptools#3937).
+    This function tries to simulate this behavior without having to create an
+    actual file, in a way that supports a range of active Python versions.
+    (There seems to be some variety in the way different version of Python handle
+    ``encoding=None``, not all of them use ``locale.getpreferredencoding(False)``
+    or ``locale.getencoding()``).
+    """
+    with io.BytesIO() as buffer:
+        wrapper = io.TextIOWrapper(buffer, encoding=py312.PTH_ENCODING)
+        # TODO: Python 3.13 replace the whole function with `bytes(content, "utf-8")`
+        wrapper.write(content)
+        wrapper.flush()
+        buffer.seek(0)
+        return buffer.read()
+
+
+def _can_symlink_files(base_dir: Path) -> bool:
+    with TemporaryDirectory(dir=str(base_dir.resolve())) as tmp:
+        path1, path2 = Path(tmp, "file1.txt"), Path(tmp, "file2.txt")
+        path1.write_text("file1", encoding="utf-8")
+        with suppress(AttributeError, NotImplementedError, OSError):
+            os.symlink(path1, path2)
+            if path2.is_symlink() and path2.read_text(encoding="utf-8") == "file1":
+                return True
+
+        try:
+            os.link(path1, path2)  # Ensure hard links can be created
+        except Exception as ex:
+            msg = (
+                "File system does not seem to support either symlinks or hard links. "
+                "Strict editable installs require one of them to be supported."
+            )
+            raise LinksNotSupported(msg) from ex
+        return False
+
+
+def _simple_layout(
+    packages: Iterable[str], package_dir: dict[str, str], project_dir: StrPath
+) -> bool:
+    """Return ``True`` if:
+    - all packages are contained by the same parent directory, **and**
+    - all packages become importable if the parent directory is added to ``sys.path``.
+
+    >>> _simple_layout(['a'], {"": "src"}, "/tmp/myproj")
+    True
+    >>> _simple_layout(['a', 'a.b'], {"": "src"}, "/tmp/myproj")
+    True
+    >>> _simple_layout(['a', 'a.b'], {}, "/tmp/myproj")
+    True
+    >>> _simple_layout(['a', 'a.a1', 'a.a1.a2', 'b'], {"": "src"}, "/tmp/myproj")
+    True
+    >>> _simple_layout(['a', 'a.a1', 'a.a1.a2', 'b'], {"a": "a", "b": "b"}, ".")
+    True
+    >>> _simple_layout(['a', 'a.a1', 'a.a1.a2', 'b'], {"a": "_a", "b": "_b"}, ".")
+    False
+    >>> _simple_layout(['a', 'a.a1', 'a.a1.a2', 'b'], {"a": "_a"}, "/tmp/myproj")
+    False
+    >>> _simple_layout(['a', 'a.a1', 'a.a1.a2', 'b'], {"a.a1.a2": "_a2"}, ".")
+    False
+    >>> _simple_layout(['a', 'a.b'], {"": "src", "a.b": "_ab"}, "/tmp/myproj")
+    False
+    >>> # Special cases, no packages yet:
+    >>> _simple_layout([], {"": "src"}, "/tmp/myproj")
+    True
+    >>> _simple_layout([], {"a": "_a", "": "src"}, "/tmp/myproj")
+    False
+    """
+    layout = {pkg: find_package_path(pkg, package_dir, project_dir) for pkg in packages}
+    if not layout:
+        return set(package_dir) in ({}, {""})
+    parent = os.path.commonpath(starmap(_parent_path, layout.items()))
+    return all(
+        _path.same_path(Path(parent, *key.split('.')), value)
+        for key, value in layout.items()
+    )
+
+
+def _parent_path(pkg, pkg_path):
+    """Infer the parent path containing a package, that if added to ``sys.path`` would
+    allow importing that package.
+    When ``pkg`` is directly mapped into a directory with a different name, return its
+    own path.
+    >>> _parent_path("a", "src/a")
+    'src'
+    >>> _parent_path("b", "src/c")
+    'src/c'
+    """
+    parent = pkg_path[: -len(pkg)] if pkg_path.endswith(pkg) else pkg_path
+    return parent.rstrip("/" + os.sep)
+
+
+def _find_packages(dist: Distribution) -> Iterator[str]:
+    yield from iter(dist.packages or [])
+
+    py_modules = dist.py_modules or []
+    nested_modules = [mod for mod in py_modules if "." in mod]
+    if dist.ext_package:
+        yield dist.ext_package
+    else:
+        ext_modules = dist.ext_modules or []
+        nested_modules += [x.name for x in ext_modules if "." in x.name]
+
+    for module in nested_modules:
+        package, _, _ = module.rpartition(".")
+        yield package
+
+
+def _find_top_level_modules(dist: Distribution) -> Iterator[str]:
+    py_modules = dist.py_modules or []
+    yield from (mod for mod in py_modules if "." not in mod)
+
+    if not dist.ext_package:
+        ext_modules = dist.ext_modules or []
+        yield from (x.name for x in ext_modules if "." not in x.name)
+
+
+def _find_package_roots(
+    packages: Iterable[str],
+    package_dir: Mapping[str, str],
+    src_root: StrPath,
+) -> dict[str, str]:
+    pkg_roots: dict[str, str] = {
+        pkg: _absolute_root(find_package_path(pkg, package_dir, src_root))
+        for pkg in sorted(packages)
+    }
+
+    return _remove_nested(pkg_roots)
+
+
+def _absolute_root(path: StrPath) -> str:
+    """Works for packages and top-level modules"""
+    path_ = Path(path)
+    parent = path_.parent
+
+    if path_.exists():
+        return str(path_.resolve())
+    else:
+        return str(parent.resolve() / path_.name)
+
+
+def _find_virtual_namespaces(pkg_roots: dict[str, str]) -> Iterator[str]:
+    """By carefully designing ``package_dir``, it is possible to implement the logical
+    structure of PEP 420 in a package without the corresponding directories.
+
+    Moreover a parent package can be purposefully/accidentally skipped in the discovery
+    phase (e.g. ``find_packages(include=["mypkg.*"])``, when ``mypkg.foo`` is included
+    by ``mypkg`` itself is not).
+    We consider this case to also be a virtual namespace (ignoring the original
+    directory) to emulate a non-editable installation.
+
+    This function will try to find these kinds of namespaces.
+    """
+    for pkg in pkg_roots:
+        if "." not in pkg:
+            continue
+        parts = pkg.split(".")
+        for i in range(len(parts) - 1, 0, -1):
+            partial_name = ".".join(parts[:i])
+            path = Path(find_package_path(partial_name, pkg_roots, ""))
+            if not path.exists() or partial_name not in pkg_roots:
+                # partial_name not in pkg_roots ==> purposefully/accidentally skipped
+                yield partial_name
+
+
+def _find_namespaces(
+    packages: list[str], pkg_roots: dict[str, str]
+) -> Iterator[tuple[str, list[str]]]:
+    for pkg in packages:
+        path = find_package_path(pkg, pkg_roots, "")
+        if Path(path).exists() and not Path(path, "__init__.py").exists():
+            yield (pkg, [path])
+
+
+def _remove_nested(pkg_roots: dict[str, str]) -> dict[str, str]:
+    output = dict(pkg_roots.copy())
+
+    for pkg, path in reversed(list(pkg_roots.items())):
+        if any(
+            pkg != other and _is_nested(pkg, path, other, other_path)
+            for other, other_path in pkg_roots.items()
+        ):
+            output.pop(pkg)
+
+    return output
+
+
+def _is_nested(pkg: str, pkg_path: str, parent: str, parent_path: str) -> bool:
+    """
+    Return ``True`` if ``pkg`` is nested inside ``parent`` both logically and in the
+    file system.
+    >>> _is_nested("a.b", "path/a/b", "a", "path/a")
+    True
+    >>> _is_nested("a.b", "path/a/b", "a", "otherpath/a")
+    False
+    >>> _is_nested("a.b", "path/a/b", "c", "path/c")
+    False
+    >>> _is_nested("a.a", "path/a/a", "a", "path/a")
+    True
+    >>> _is_nested("b.a", "path/b/a", "a", "path/a")
+    False
+    """
+    norm_pkg_path = _path.normpath(pkg_path)
+    rest = pkg.replace(parent, "", 1).strip(".").split(".")
+    return pkg.startswith(parent) and norm_pkg_path == _path.normpath(
+        Path(parent_path, *rest)
+    )
+
+
+def _empty_dir(dir_: _P) -> _P:
+    """Create a directory ensured to be empty. Existing files may be removed."""
+    _shutil.rmtree(dir_, ignore_errors=True)
+    os.makedirs(dir_)
+    return dir_
+
+
+class _NamespaceInstaller(namespaces.Installer):
+    def __init__(self, distribution, installation_dir, editable_name, src_root) -> None:
+        self.distribution = distribution
+        self.src_root = src_root
+        self.installation_dir = installation_dir
+        self.editable_name = editable_name
+        self.outputs: list[str] = []
+        self.dry_run = False
+
+    def _get_nspkg_file(self):
+        """Installation target."""
+        return os.path.join(self.installation_dir, self.editable_name + self.nspkg_ext)
+
+    def _get_root(self):
+        """Where the modules/packages should be loaded from."""
+        return repr(str(self.src_root))
+
+
+_FINDER_TEMPLATE = """\
+from __future__ import annotations
+import sys
+from importlib.machinery import ModuleSpec, PathFinder
+from importlib.machinery import all_suffixes as module_suffixes
+from importlib.util import spec_from_file_location
+from itertools import chain
+from pathlib import Path
+
+MAPPING: dict[str, str] = {mapping!r}
+NAMESPACES: dict[str, list[str]] = {namespaces!r}
+PATH_PLACEHOLDER = {name!r} + ".__path_hook__"
+
+
+class _EditableFinder:  # MetaPathFinder
+    @classmethod
+    def find_spec(cls, fullname: str, path=None, target=None) -> ModuleSpec | None:  # type: ignore
+        # Top-level packages and modules (we know these exist in the FS)
+        if fullname in MAPPING:
+            pkg_path = MAPPING[fullname]
+            return cls._find_spec(fullname, Path(pkg_path))
+
+        # Handle immediate children modules (required for namespaces to work)
+        # To avoid problems with case sensitivity in the file system we delegate
+        # to the importlib.machinery implementation.
+        parent, _, child = fullname.rpartition(".")
+        if parent and parent in MAPPING:
+            return PathFinder.find_spec(fullname, path=[MAPPING[parent]])
+
+        # Other levels of nesting should be handled automatically by importlib
+        # using the parent path.
+        return None
+
+    @classmethod
+    def _find_spec(cls, fullname: str, candidate_path: Path) -> ModuleSpec | None:
+        init = candidate_path / "__init__.py"
+        candidates = (candidate_path.with_suffix(x) for x in module_suffixes())
+        for candidate in chain([init], candidates):
+            if candidate.exists():
+                return spec_from_file_location(fullname, candidate)
+        return None
+
+
+class _EditableNamespaceFinder:  # PathEntryFinder
+    @classmethod
+    def _path_hook(cls, path) -> type[_EditableNamespaceFinder]:
+        if path == PATH_PLACEHOLDER:
+            return cls
+        raise ImportError
+
+    @classmethod
+    def _paths(cls, fullname: str) -> list[str]:
+        paths = NAMESPACES[fullname]
+        if not paths and fullname in MAPPING:
+            paths = [MAPPING[fullname]]
+        # Always add placeholder, for 2 reasons:
+        # 1. __path__ cannot be empty for the spec to be considered namespace.
+        # 2. In the case of nested namespaces, we need to force
+        #    import machinery to query _EditableNamespaceFinder again.
+        return [*paths, PATH_PLACEHOLDER]
+
+    @classmethod
+    def find_spec(cls, fullname: str, target=None) -> ModuleSpec | None:  # type: ignore
+        if fullname in NAMESPACES:
+            spec = ModuleSpec(fullname, None, is_package=True)
+            spec.submodule_search_locations = cls._paths(fullname)
+            return spec
+        return None
+
+    @classmethod
+    def find_module(cls, _fullname) -> None:
+        return None
+
+
+def install():
+    if not any(finder == _EditableFinder for finder in sys.meta_path):
+        sys.meta_path.append(_EditableFinder)
+
+    if not NAMESPACES:
+        return
+
+    if not any(hook == _EditableNamespaceFinder._path_hook for hook in sys.path_hooks):
+        # PathEntryFinder is needed to create NamespaceSpec without private APIS
+        sys.path_hooks.append(_EditableNamespaceFinder._path_hook)
+    if PATH_PLACEHOLDER not in sys.path:
+        sys.path.append(PATH_PLACEHOLDER)  # Used just to trigger the path hook
+"""
+
+
+def _finder_template(
+    name: str, mapping: Mapping[str, str], namespaces: dict[str, list[str]]
+) -> str:
+    """Create a string containing the code for the``MetaPathFinder`` and
+    ``PathEntryFinder``.
+    """
+    mapping = dict(sorted(mapping.items(), key=lambda p: p[0]))
+    return _FINDER_TEMPLATE.format(name=name, mapping=mapping, namespaces=namespaces)
+
+
+class LinksNotSupported(errors.FileError):
+    """File system does not seem to support either symlinks or hard links."""
+
+
+class _DebuggingTips(SetuptoolsWarning):
+    _SUMMARY = "Problem in editable installation."
+    _DETAILS = """
+    An error happened while installing `{project}` in editable mode.
+
+    The following steps are recommended to help debug this problem:
+
+    - Try to install the project normally, without using the editable mode.
+      Does the error still persist?
+      (If it does, try fixing the problem before attempting the editable mode).
+    - If you are using binary extensions, make sure you have all OS-level
+      dependencies installed (e.g. compilers, toolchains, binary libraries, ...).
+    - Try the latest version of setuptools (maybe the error was already fixed).
+    - If you (or your project dependencies) are using any setuptools extension
+      or customization, make sure they support the editable mode.
+
+    After following the steps above, if the problem still persists and
+    you think this is related to how setuptools handles editable installations,
+    please submit a reproducible example
+    (see https://stackoverflow.com/help/minimal-reproducible-example) to:
+
+        https://github.com/pypa/setuptools/issues
+    """
+    _SEE_DOCS = "userguide/development_mode.html"
diff --git a/setuptools/command/egg_info.py b/setuptools/command/egg_info.py
old mode 100755
new mode 100644
index a8315d23ba..f77631168f
--- a/setuptools/command/egg_info.py
+++ b/setuptools/command/egg_info.py
@@ -2,126 +2,257 @@
 
 Create a distribution's .egg-info directory and contents"""
 
-# This module should be kept compatible with Python 2.3
-import os, re
+import functools
+import os
+import re
+import sys
+import time
+from collections.abc import Callable
+
+import packaging
+import packaging.requirements
+import packaging.version
+
+import setuptools.unicode_utils as unicode_utils
 from setuptools import Command
-from distutils.errors import *
+from setuptools.command import bdist_egg
+from setuptools.command.sdist import sdist, walk_revctrl
+from setuptools.command.setopt import edit_config
+from setuptools.glob import glob
+
+from .. import _entry_points, _normalization
+from .._importlib import metadata
+from ..warnings import SetuptoolsDeprecationWarning
+from . import _requirestxt
+
+import distutils.errors
+import distutils.filelist
 from distutils import log
-from setuptools.command.sdist import sdist
+from distutils.errors import DistutilsInternalError
+from distutils.filelist import FileList as _FileList
 from distutils.util import convert_path
-from distutils.filelist import FileList
-from pkg_resources import parse_requirements, safe_name, parse_version, \
-    safe_version, yield_lines, EntryPoint, iter_entry_points, to_filename
-from sdist import walk_revctrl
-
-class egg_info(Command):
-    description = "create a distribution's .egg-info directory"
-
-    user_options = [
-        ('egg-base=', 'e', "directory containing .egg-info directories"
-                           " (default: top of the source tree)"),
-        ('tag-svn-revision', 'r',
-            "Add subversion revision ID to version number"),
-        ('tag-date', 'd', "Add date stamp (e.g. 20050528) to version number"),
-        ('tag-build=', 'b', "Specify explicit tag to add to version number"),
-        ('no-svn-revision', 'R',
-            "Don't add subversion revision ID [default]"),
-        ('no-date', 'D', "Don't include date stamp [default]"),
-    ]
-
-    boolean_options = ['tag-date', 'tag-svn-revision']
-    negative_opt = {'no-svn-revision': 'tag-svn-revision',
-                    'no-date': 'tag-date'}
-
-
 
+PY_MAJOR = f'{sys.version_info.major}.{sys.version_info.minor}'
 
 
+def translate_pattern(glob):  # noqa: C901  # is too complex (14)  # FIXME
+    """
+    Translate a file path glob like '*.txt' in to a regular expression.
+    This differs from fnmatch.translate which allows wildcards to match
+    directory separators. It also knows about '**/' which matches any number of
+    directories.
+    """
+    pat = ''
 
+    # This will split on '/' within [character classes]. This is deliberate.
+    chunks = glob.split(os.path.sep)
 
-    def initialize_options(self):
-        self.egg_name = None
-        self.egg_version = None
-        self.egg_base = None
-        self.egg_info = None
-        self.tag_build = None
-        self.tag_svn_revision = 0
-        self.tag_date = 0
-        self.broken_egg_info = False
-        self.vtags = None
-
-    def save_version_info(self, filename):
-        from setopt import edit_config
-        edit_config(
-            filename,
-            {'egg_info':
-                {'tag_svn_revision':0, 'tag_date': 0, 'tag_build': self.tags()}
-            }
-        )
+    sep = re.escape(os.sep)
+    valid_char = f'[^{sep}]'
 
+    for c, chunk in enumerate(chunks):
+        last_chunk = c == len(chunks) - 1
 
+        # Chunks that are a literal ** are globstars. They match anything.
+        if chunk == '**':
+            if last_chunk:
+                # Match anything if this is the last component
+                pat += '.*'
+            else:
+                # Match '(name/)*'
+                pat += f'(?:{valid_char}+{sep})*'
+            continue  # Break here as the whole path component has been handled
+
+        # Find any special characters in the remainder
+        i = 0
+        chunk_len = len(chunk)
+        while i < chunk_len:
+            char = chunk[i]
+            if char == '*':
+                # Match any number of name characters
+                pat += valid_char + '*'
+            elif char == '?':
+                # Match a name character
+                pat += valid_char
+            elif char == '[':
+                # Character class
+                inner_i = i + 1
+                # Skip initial !/] chars
+                if inner_i < chunk_len and chunk[inner_i] == '!':
+                    inner_i = inner_i + 1
+                if inner_i < chunk_len and chunk[inner_i] == ']':
+                    inner_i = inner_i + 1
+
+                # Loop till the closing ] is found
+                while inner_i < chunk_len and chunk[inner_i] != ']':
+                    inner_i = inner_i + 1
+
+                if inner_i >= chunk_len:
+                    # Got to the end of the string without finding a closing ]
+                    # Do not treat this as a matching group, but as a literal [
+                    pat += re.escape(char)
+                else:
+                    # Grab the insides of the [brackets]
+                    inner = chunk[i + 1 : inner_i]
+                    char_class = ''
+
+                    # Class negation
+                    if inner[0] == '!':
+                        char_class = '^'
+                        inner = inner[1:]
+
+                    char_class += re.escape(inner)
+                    pat += f'[{char_class}]'
+
+                    # Skip to the end ]
+                    i = inner_i
+            else:
+                pat += re.escape(char)
+            i += 1
 
+        # Join each chunk with the dir separator
+        if not last_chunk:
+            pat += sep
 
+    pat += r'\Z'
+    return re.compile(pat, flags=re.MULTILINE | re.DOTALL)
 
 
+class InfoCommon:
+    tag_build = None
+    tag_date = None
 
+    @property
+    def name(self):
+        return _normalization.safe_name(self.distribution.get_name())
 
+    def tagged_version(self):
+        tagged = self._maybe_tag(self.distribution.get_version())
+        return _normalization.safe_version(tagged)
 
+    def _maybe_tag(self, version):
+        """
+        egg_info may be called more than once for a distribution,
+        in which case the version string already contains all tags.
+        """
+        return (
+            version
+            if self.vtags and self._already_tagged(version)
+            else version + self.vtags
+        )
 
+    def _already_tagged(self, version: str) -> bool:
+        # Depending on their format, tags may change with version normalization.
+        # So in addition the regular tags, we have to search for the normalized ones.
+        return version.endswith(self.vtags) or version.endswith(self._safe_tags())
 
+    def _safe_tags(self) -> str:
+        # To implement this we can rely on `safe_version` pretending to be version 0
+        # followed by tags. Then we simply discard the starting 0 (fake version number)
+        try:
+            return _normalization.safe_version(f"0{self.vtags}")[1:]
+        except packaging.version.InvalidVersion:
+            return _normalization.safe_name(self.vtags.replace(' ', '.'))
 
+    def tags(self) -> str:
+        version = ''
+        if self.tag_build:
+            version += self.tag_build
+        if self.tag_date:
+            version += time.strftime("%Y%m%d")
+        return version
 
+    vtags = property(tags)
 
 
+class egg_info(InfoCommon, Command):
+    description = "create a distribution's .egg-info directory"
 
+    user_options = [
+        (
+            'egg-base=',
+            'e',
+            "directory containing .egg-info directories"
+            " [default: top of the source tree]",
+        ),
+        ('tag-date', 'd', "Add date stamp (e.g. 20050528) to version number"),
+        ('tag-build=', 'b', "Specify explicit tag to add to version number"),
+        ('no-date', 'D', "Don't include date stamp [default]"),
+    ]
 
+    boolean_options = ['tag-date']
+    negative_opt = {
+        'no-date': 'tag-date',
+    }
 
+    def initialize_options(self):
+        self.egg_base = None
+        self.egg_name = None
+        self.egg_info = None
+        self.egg_version = None
+        self.ignore_egg_info_in_manifest = False
 
+    ####################################
+    # allow the 'tag_svn_revision' to be detected and
+    # set, supporting sdists built on older Setuptools.
+    @property
+    def tag_svn_revision(self) -> None:
+        pass
 
+    @tag_svn_revision.setter
+    def tag_svn_revision(self, value):
+        pass
 
+    ####################################
 
-    def finalize_options (self):
-        self.egg_name = safe_name(self.distribution.get_name())
-        self.vtags = self.tags()
+    def save_version_info(self, filename) -> None:
+        """
+        Materialize the value of date into the
+        build tag. Install build keys in a deterministic order
+        to avoid arbitrary reordering on subsequent builds.
+        """
+        # follow the order these keys would have been added
+        # when PYTHONHASHSEED=0
+        egg_info = dict(tag_build=self.tags(), tag_date=0)
+        edit_config(filename, dict(egg_info=egg_info))
+
+    def finalize_options(self) -> None:
+        # Note: we need to capture the current value returned
+        # by `self.tagged_version()`, so we can later update
+        # `self.distribution.metadata.version` without
+        # repercussions.
+        self.egg_name = self.name
         self.egg_version = self.tagged_version()
+        parsed_version = packaging.version.Version(self.egg_version)
 
         try:
-            list(
-                parse_requirements('%s==%s' % (self.egg_name,self.egg_version))
-            )
-        except ValueError:
-            raise DistutilsOptionError(
-                "Invalid distribution name or version syntax: %s-%s" %
-                (self.egg_name,self.egg_version)
-            )
+            is_version = isinstance(parsed_version, packaging.version.Version)
+            spec = "%s==%s" if is_version else "%s===%s"
+            packaging.requirements.Requirement(spec % (self.egg_name, self.egg_version))
+        except ValueError as e:
+            raise distutils.errors.DistutilsOptionError(
+                f"Invalid distribution name or version syntax: {self.egg_name}-{self.egg_version}"
+            ) from e
 
         if self.egg_base is None:
             dirs = self.distribution.package_dir
-            self.egg_base = (dirs or {}).get('',os.curdir)
+            self.egg_base = (dirs or {}).get('', os.curdir)
 
         self.ensure_dirname('egg_base')
-        self.egg_info = to_filename(self.egg_name)+'.egg-info'
+        self.egg_info = _normalization.filename_component(self.egg_name) + '.egg-info'
         if self.egg_base != os.curdir:
             self.egg_info = os.path.join(self.egg_base, self.egg_info)
-        if '-' in self.egg_name: self.check_broken_egg_info()
 
         # Set package version for the benefit of dumber commands
         # (e.g. sdist, bdist_wininst, etc.)
         #
         self.distribution.metadata.version = self.egg_version
 
-        # If we bootstrapped around the lack of a PKG-INFO, as might be the
-        # case in a fresh checkout, make sure that any special tags get added
-        # to the version info
-        #
-        pd = self.distribution._patched_dist
-        if pd is not None and pd.key==self.egg_name.lower():
-            pd._version = self.egg_version
-            pd._parsed_version = parse_version(self.egg_version)
-            self.distribution._patched_dist = None
+    def _get_egg_basename(self, py_version=PY_MAJOR, platform=None):
+        """Compute filename of the output egg. Private API."""
+        return _egg_basename(self.egg_name, self.egg_version, py_version, platform)
 
-
-    def write_or_delete_file(self, what, filename, data, force=False):
+    def write_or_delete_file(self, what, filename, data, force: bool = False) -> None:
         """Write `data` to `filename` or delete if empty
 
         If `data` is non-empty, this routine is the same as ``write_file()``.
@@ -134,40 +265,44 @@ def write_or_delete_file(self, what, filename, data, force=False):
             self.write_file(what, filename, data)
         elif os.path.exists(filename):
             if data is None and not force:
-                log.warn(
-                    "%s not set in setup(), but %s exists", what, filename
-                )
+                log.warn("%s not set in setup(), but %s exists", what, filename)
                 return
             else:
                 self.delete_file(filename)
 
-    def write_file(self, what, filename, data):
+    def write_file(self, what, filename, data) -> None:
         """Write `data` to `filename` (if not a dry run) after announcing it
 
         `what` is used in a log message to identify what is being written
         to the file.
         """
         log.info("writing %s to %s", what, filename)
+        data = data.encode("utf-8")
         if not self.dry_run:
             f = open(filename, 'wb')
             f.write(data)
             f.close()
 
-    def delete_file(self, filename):
+    def delete_file(self, filename) -> None:
         """Delete `filename` (if not a dry run) after announcing it"""
         log.info("deleting %s", filename)
         if not self.dry_run:
             os.unlink(filename)
 
-    def tagged_version(self):
-        return safe_version(self.distribution.get_version() + self.vtags)
+    def run(self) -> None:
+        # Pre-load to avoid iterating over entry-points while an empty .egg-info
+        # exists in sys.path. See pypa/pyproject-hooks#206
+        writers = list(metadata.entry_points(group='egg_info.writers'))
 
-    def run(self):
         self.mkpath(self.egg_info)
-        installer = self.distribution.fetch_build_egg
-        for ep in iter_entry_points('egg_info.writers'):
-            writer = ep.load(installer=installer)
-            writer(self, ep.name, os.path.join(self.egg_info,ep.name))
+        try:
+            os.utime(self.egg_info, None)
+        except OSError as e:
+            msg = f"Cannot update time stamp of directory '{self.egg_info}'"
+            raise distutils.errors.DistutilsFileError(msg) from e
+        for ep in writers:
+            writer = ep.load()
+            writer(self, ep.name, os.path.join(self.egg_info, ep.name))
 
         # Get rid of native_libs.txt if it was put there by older bdist_egg
         nl = os.path.join(self.egg_info, "native_libs.txt")
@@ -176,157 +311,273 @@ def run(self):
 
         self.find_sources()
 
-    def tags(self):
-        version = ''
-        if self.tag_build:
-            version+=self.tag_build
-        if self.tag_svn_revision and (
-            os.path.exists('.svn') or os.path.exists('PKG-INFO')
-        ):  version += '-r%s' % self.get_svn_revision()
-        if self.tag_date:
-            import time; version += time.strftime("-%Y%m%d")
-        return version
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-    def get_svn_revision(self):
-        revision = 0
-        urlre = re.compile('url="([^"]+)"')
-        revre = re.compile('committed-rev="(\d+)"')
-
-        for base,dirs,files in os.walk(os.curdir):
-            if '.svn' not in dirs:
-                dirs[:] = []
-                continue    # no sense walking uncontrolled subdirs
-            dirs.remove('.svn')
-            f = open(os.path.join(base,'.svn','entries'))
-            data = f.read()
-            f.close()
-
-            if data.startswith('10') or data.startswith('9') or data.startswith('8'):
-                data = map(str.splitlines,data.split('\n\x0c\n'))
-                del data[0][0]  # get rid of the '8' or '9' or '10'
-                dirurl = data[0][3]
-                localrev = max([int(d[9]) for d in data if len(d)>9 and d[9]]+[0])
-            elif data.startswith(' None:
         """Generate SOURCES.txt manifest file"""
-        manifest_filename = os.path.join(self.egg_info,"SOURCES.txt")
+        manifest_filename = os.path.join(self.egg_info, "SOURCES.txt")
         mm = manifest_maker(self.distribution)
+        mm.ignore_egg_info_dir = self.ignore_egg_info_in_manifest
         mm.manifest = manifest_filename
         mm.run()
         self.filelist = mm.filelist
 
-    def check_broken_egg_info(self):
-        bei = self.egg_name+'.egg-info'
-        if self.egg_base != os.curdir:
-            bei = os.path.join(self.egg_base, bei)
-        if os.path.exists(bei):
-            log.warn(
-                "-"*78+'\n'
-                "Note: Your current .egg-info directory has a '-' in its name;"
-                '\nthis will not work correctly with "setup.py develop".\n\n'
-                'Please rename %s to %s to correct this problem.\n'+'-'*78,
-                bei, self.egg_info
+
+class FileList(_FileList):
+    # Implementations of the various MANIFEST.in commands
+
+    def __init__(
+        self, warn=None, debug_print=None, ignore_egg_info_dir: bool = False
+    ) -> None:
+        super().__init__(warn, debug_print)
+        self.ignore_egg_info_dir = ignore_egg_info_dir
+
+    def process_template_line(self, line) -> None:
+        # Parse the line: split it up, make sure the right number of words
+        # is there, and return the relevant words.  'action' is always
+        # defined: it's the first word of the line.  Which of the other
+        # three are defined depends on the action; it'll be either
+        # patterns, (dir and patterns), or (dir_pattern).
+        (action, patterns, dir, dir_pattern) = self._parse_template_line(line)
+
+        action_map: dict[str, Callable] = {
+            'include': self.include,
+            'exclude': self.exclude,
+            'global-include': self.global_include,
+            'global-exclude': self.global_exclude,
+            'recursive-include': functools.partial(
+                self.recursive_include,
+                dir,
+            ),
+            'recursive-exclude': functools.partial(
+                self.recursive_exclude,
+                dir,
+            ),
+            'graft': self.graft,
+            'prune': self.prune,
+        }
+        log_map = {
+            'include': "warning: no files found matching '%s'",
+            'exclude': ("warning: no previously-included files found matching '%s'"),
+            'global-include': (
+                "warning: no files found matching '%s' anywhere in distribution"
+            ),
+            'global-exclude': (
+                "warning: no previously-included files matching "
+                "'%s' found anywhere in distribution"
+            ),
+            'recursive-include': (
+                "warning: no files found matching '%s' under directory '%s'"
+            ),
+            'recursive-exclude': (
+                "warning: no previously-included files matching "
+                "'%s' found under directory '%s'"
+            ),
+            'graft': "warning: no directories found matching '%s'",
+            'prune': "no previously-included directories found matching '%s'",
+        }
+
+        try:
+            process_action = action_map[action]
+        except KeyError:
+            msg = f"Invalid MANIFEST.in: unknown action {action!r} in {line!r}"
+            raise DistutilsInternalError(msg) from None
+
+        # OK, now we know that the action is valid and we have the
+        # right number of words on the line for that action -- so we
+        # can proceed with minimal error-checking.
+
+        action_is_recursive = action.startswith('recursive-')
+        if action in {'graft', 'prune'}:
+            patterns = [dir_pattern]
+        extra_log_args = (dir,) if action_is_recursive else ()
+        log_tmpl = log_map[action]
+
+        self.debug_print(
+            ' '.join(
+                [action] + ([dir] if action_is_recursive else []) + patterns,
             )
-            self.broken_egg_info = self.egg_info
-            self.egg_info = bei     # make it work for now
+        )
+        for pattern in patterns:
+            if not process_action(pattern):
+                log.warn(log_tmpl, pattern, *extra_log_args)
 
-class FileList(FileList):
-    """File list that accepts only existing, platform-independent paths"""
+    def _remove_files(self, predicate):
+        """
+        Remove all files from the file list that match the predicate.
+        Return True if any matching files were removed
+        """
+        found = False
+        for i in range(len(self.files) - 1, -1, -1):
+            if predicate(self.files[i]):
+                self.debug_print(" removing " + self.files[i])
+                del self.files[i]
+                found = True
+        return found
+
+    def include(self, pattern):
+        """Include files that match 'pattern'."""
+        found = [f for f in glob(pattern) if not os.path.isdir(f)]
+        self.extend(found)
+        return bool(found)
+
+    def exclude(self, pattern):
+        """Exclude files that match 'pattern'."""
+        match = translate_pattern(pattern)
+        return self._remove_files(match.match)
+
+    def recursive_include(self, dir, pattern):
+        """
+        Include all files anywhere in 'dir/' that match the pattern.
+        """
+        full_pattern = os.path.join(dir, '**', pattern)
+        found = [f for f in glob(full_pattern, recursive=True) if not os.path.isdir(f)]
+        self.extend(found)
+        return bool(found)
+
+    def recursive_exclude(self, dir, pattern):
+        """
+        Exclude any file anywhere in 'dir/' that match the pattern.
+        """
+        match = translate_pattern(os.path.join(dir, '**', pattern))
+        return self._remove_files(match.match)
+
+    def graft(self, dir):
+        """Include all files from 'dir/'."""
+        found = [
+            item
+            for match_dir in glob(dir)
+            for item in distutils.filelist.findall(match_dir)
+        ]
+        self.extend(found)
+        return bool(found)
+
+    def prune(self, dir):
+        """Filter out files from 'dir/'."""
+        match = translate_pattern(os.path.join(dir, '**'))
+        return self._remove_files(match.match)
 
-    def append(self, item):
-        if item.endswith('\r'):     # Fix older sdists built on Windows
+    def global_include(self, pattern):
+        """
+        Include all files anywhere in the current directory that match the
+        pattern. This is very inefficient on large file trees.
+        """
+        if self.allfiles is None:
+            self.findall()
+        match = translate_pattern(os.path.join('**', pattern))
+        found = [f for f in self.allfiles if match.match(f)]
+        self.extend(found)
+        return bool(found)
+
+    def global_exclude(self, pattern):
+        """
+        Exclude all files anywhere that match the pattern.
+        """
+        match = translate_pattern(os.path.join('**', pattern))
+        return self._remove_files(match.match)
+
+    def append(self, item) -> None:
+        if item.endswith('\r'):  # Fix older sdists built on Windows
             item = item[:-1]
         path = convert_path(item)
-        if os.path.exists(path):
+
+        if self._safe_path(path):
             self.files.append(path)
 
+    def extend(self, paths) -> None:
+        self.files.extend(filter(self._safe_path, paths))
 
+    def _repair(self):
+        """
+        Replace self.files with only safe paths
 
+        Because some owners of FileList manipulate the underlying
+        ``files`` attribute directly, this method must be called to
+        repair those paths.
+        """
+        self.files = list(filter(self._safe_path, self.files))
 
+    def _safe_path(self, path):
+        enc_warn = "'%s' not %s encodable -- skipping"
 
+        # To avoid accidental trans-codings errors, first to unicode
+        u_path = unicode_utils.filesys_decode(path)
+        if u_path is None:
+            log.warn(f"'{path}' in unexpected encoding -- skipping")
+            return False
 
+        # Must ensure utf-8 encodability
+        utf8_path = unicode_utils.try_encode(u_path, "utf-8")
+        if utf8_path is None:
+            log.warn(enc_warn, path, 'utf-8')
+            return False
 
+        try:
+            # ignore egg-info paths
+            is_egg_info = ".egg-info" in u_path or b".egg-info" in utf8_path
+            if self.ignore_egg_info_dir and is_egg_info:
+                return False
+            # accept is either way checks out
+            if os.path.exists(u_path) or os.path.exists(utf8_path):
+                return True
+        # this will catch any encode errors decoding u_path
+        except UnicodeEncodeError:
+            log.warn(enc_warn, path, sys.getfilesystemencoding())
 
 
 class manifest_maker(sdist):
-
     template = "MANIFEST.in"
 
-    def initialize_options (self):
-        self.use_defaults = 1
-        self.prune = 1
-        self.manifest_only = 1
-        self.force_manifest = 1
+    def initialize_options(self) -> None:
+        self.use_defaults = True
+        self.prune = True
+        self.manifest_only = True
+        self.force_manifest = True
+        self.ignore_egg_info_dir = False
 
-    def finalize_options(self):
+    def finalize_options(self) -> None:
         pass
 
-    def run(self):
-        self.filelist = FileList()
+    def run(self) -> None:
+        self.filelist = FileList(ignore_egg_info_dir=self.ignore_egg_info_dir)
         if not os.path.exists(self.manifest):
-            self.write_manifest()   # it must exist so it'll get in the list
-        self.filelist.findall()
+            self.write_manifest()  # it must exist so it'll get in the list
         self.add_defaults()
         if os.path.exists(self.template):
             self.read_template()
+        self.add_license_files()
+        self._add_referenced_files()
         self.prune_file_list()
         self.filelist.sort()
         self.filelist.remove_duplicates()
         self.write_manifest()
 
-    def write_manifest (self):
-        """Write the file list in 'self.filelist' (presumably as filled in
-        by 'add_defaults()' and 'read_template()') to the manifest file
+    def _manifest_normalize(self, path):
+        path = unicode_utils.filesys_decode(path)
+        return path.replace(os.sep, '/')
+
+    def write_manifest(self) -> None:
+        """
+        Write the file list in 'self.filelist' to the manifest file
         named by 'self.manifest'.
         """
-        files = self.filelist.files
-        if os.sep!='/':
-            files = [f.replace(os.sep,'/') for f in files]
-        self.execute(write_file, (self.manifest, files),
-                     "writing manifest file '%s'" % self.manifest)
-
-    def warn(self, msg):    # suppress missing-file warnings from sdist
-        if not msg.startswith("standard file not found:"):
+        self.filelist._repair()
+
+        # Now _repairs should encodability, but not unicode
+        files = [self._manifest_normalize(f) for f in self.filelist.files]
+        msg = f"writing manifest file '{self.manifest}'"
+        self.execute(write_file, (self.manifest, files), msg)
+
+    def warn(self, msg) -> None:
+        if not self._should_suppress_warning(msg):
             sdist.warn(self, msg)
 
-    def add_defaults(self):
+    @staticmethod
+    def _should_suppress_warning(msg):
+        """
+        suppress missing-file warnings from sdist
+        """
+        return re.match(r"standard file .*not found", msg)
+
+    def add_defaults(self) -> None:
         sdist.add_defaults(self)
         self.filelist.append(self.template)
         self.filelist.append(self.manifest)
@@ -335,44 +586,74 @@ def add_defaults(self):
             self.filelist.extend(rcfiles)
         elif os.path.exists(self.manifest):
             self.read_manifest()
+
+        if os.path.exists("setup.py"):
+            # setup.py should be included by default, even if it's not
+            # the script called to create the sdist
+            self.filelist.append("setup.py")
+
         ei_cmd = self.get_finalized_command('egg_info')
-        self.filelist.include_pattern("*", prefix=ei_cmd.egg_info)
+        self.filelist.graft(ei_cmd.egg_info)
+
+    def add_license_files(self) -> None:
+        license_files = self.distribution.metadata.license_files or []
+        for lf in license_files:
+            log.info("adding license file '%s'", lf)
+        self.filelist.extend(license_files)
+
+    def _add_referenced_files(self):
+        """Add files referenced by the config (e.g. `file:` directive) to filelist"""
+        referenced = getattr(self.distribution, '_referenced_files', [])
+        # ^-- fallback if dist comes from distutils or is a custom class
+        for rf in referenced:
+            log.debug("adding file referenced by config '%s'", rf)
+        self.filelist.extend(referenced)
+
+    def _safe_data_files(self, build_py):
+        """
+        The parent class implementation of this method
+        (``sdist``) will try to include data files, which
+        might cause recursion problems when
+        ``include_package_data=True``.
 
-    def prune_file_list (self):
-        build = self.get_finalized_command('build')
-        base_dir = self.distribution.get_fullname()
-        self.filelist.exclude_pattern(None, prefix=build.build_base)
-        self.filelist.exclude_pattern(None, prefix=base_dir)
-        sep = re.escape(os.sep)
-        self.filelist.exclude_pattern(sep+r'(RCS|CVS|\.svn)'+sep, is_regex=1)
+        Therefore, avoid triggering any attempt of
+        analyzing/building the manifest again.
+        """
+        if hasattr(build_py, 'get_data_files_without_manifest'):
+            return build_py.get_data_files_without_manifest()
+
+        SetuptoolsDeprecationWarning.emit(
+            "`build_py` command does not inherit from setuptools' `build_py`.",
+            """
+            Custom 'build_py' does not implement 'get_data_files_without_manifest'.
+            Please extend command classes from setuptools instead of distutils.
+            """,
+            see_url="https://peps.python.org/pep-0632/",
+            # due_date not defined yet, old projects might still do it?
+        )
+        return build_py.get_data_files()
 
 
-def write_file (filename, contents):
+def write_file(filename, contents) -> None:
     """Create a file with the specified name and write 'contents' (a
     sequence of strings without line terminators) to it.
     """
-    f = open(filename, "wb")        # always write POSIX-style manifest
-    f.write("\n".join(contents))
-    f.close()
-
-
-
-
-
+    contents = "\n".join(contents)
 
+    # assuming the contents has been vetted for utf-8 encoding
+    contents = contents.encode("utf-8")
 
+    with open(filename, "wb") as f:  # always write POSIX-style manifest
+        f.write(contents)
 
 
-
-
-
-
-def write_pkg_info(cmd, basename, filename):
+def write_pkg_info(cmd, basename, filename) -> None:
     log.info("writing %s", filename)
     if not cmd.dry_run:
         metadata = cmd.distribution.metadata
         metadata.version, oldver = cmd.egg_version, metadata.version
-        metadata.name, oldname   = cmd.egg_name, metadata.name
+        metadata.name, oldname = cmd.egg_name, metadata.name
+
         try:
             # write unescaped data to PKG-INFO, so older pkg_resources
             # can still parse it
@@ -380,73 +661,60 @@ def write_pkg_info(cmd, basename, filename):
         finally:
             metadata.name, metadata.version = oldname, oldver
 
-        safe = getattr(cmd.distribution,'zip_safe',None)
-        import bdist_egg; bdist_egg.write_safety_flag(cmd.egg_info, safe)
+        safe = getattr(cmd.distribution, 'zip_safe', None)
 
-def warn_depends_obsolete(cmd, basename, filename):
-    if os.path.exists(filename):
-        log.warn(
-            "WARNING: 'depends.txt' is not used by setuptools 0.6!\n"
-            "Use the install_requires/extras_require setup() args instead."
-        )
+        bdist_egg.write_safety_flag(cmd.egg_info, safe)
 
 
-def write_requirements(cmd, basename, filename):
-    dist = cmd.distribution
-    data = ['\n'.join(yield_lines(dist.install_requires or ()))]
-    for extra,reqs in (dist.extras_require or {}).items():
-        data.append('\n\n[%s]\n%s' % (extra, '\n'.join(yield_lines(reqs))))
-    cmd.write_or_delete_file("requirements", filename, ''.join(data))
+def warn_depends_obsolete(cmd, basename, filename) -> None:
+    """
+    Unused: left to avoid errors when updating (from source) from <= 67.8.
+    Old installations have a .dist-info directory with the entry-point
+    ``depends.txt = setuptools.command.egg_info:warn_depends_obsolete``.
+    This may trigger errors when running the first egg_info in build_meta.
+    TODO: Remove this function in a version sufficiently > 68.
+    """
 
-def write_toplevel_names(cmd, basename, filename):
-    pkgs = dict.fromkeys(
-        [k.split('.',1)[0]
-            for k in cmd.distribution.iter_distribution_names()
-        ]
-    )
-    cmd.write_file("top-level names", filename, '\n'.join(pkgs)+'\n')
 
+# Export API used in entry_points
+write_requirements = _requirestxt.write_requirements
+write_setup_requirements = _requirestxt.write_setup_requirements
 
 
-def overwrite_arg(cmd, basename, filename):
+def write_toplevel_names(cmd, basename, filename) -> None:
+    pkgs = dict.fromkeys([
+        k.split('.', 1)[0] for k in cmd.distribution.iter_distribution_names()
+    ])
+    cmd.write_file("top-level names", filename, '\n'.join(sorted(pkgs)) + '\n')
+
+
+def overwrite_arg(cmd, basename, filename) -> None:
     write_arg(cmd, basename, filename, True)
 
-def write_arg(cmd, basename, filename, force=False):
+
+def write_arg(cmd, basename, filename, force: bool = False) -> None:
     argname = os.path.splitext(basename)[0]
     value = getattr(cmd.distribution, argname, None)
     if value is not None:
-        value = '\n'.join(value)+'\n'
+        value = '\n'.join(value) + '\n'
     cmd.write_or_delete_file(argname, filename, value, force)
 
-def write_entries(cmd, basename, filename):
-    ep = cmd.distribution.entry_points
-
-    if isinstance(ep,basestring) or ep is None:
-        data = ep
-    elif ep is not None:
-        data = []
-        for section, contents in ep.items():
-            if not isinstance(contents,basestring):
-                contents = EntryPoint.parse_group(section, contents)
-                contents = '\n'.join(map(str,contents.values()))
-            data.append('[%s]\n%s\n\n' % (section,contents))
-        data = ''.join(data)
-
-    cmd.write_or_delete_file('entry points', filename, data, True)
-
-def get_pkg_info_revision():
-    # See if we can get a -r### off of PKG-INFO, in case this is an sdist of
-    # a subversion revision
-    #
-    if os.path.exists('PKG-INFO'):
-        f = open('PKG-INFO','rU')
-        for line in f:
-            match = re.match(r"Version:.*-r(\d+)\s*$", line)
-            if match:
-                return int(match.group(1))
-        f.close()
-    return 0
-
-
-
-#
+
+def write_entries(cmd, basename, filename) -> None:
+    eps = _entry_points.load(cmd.distribution.entry_points)
+    defn = _entry_points.render(eps)
+    cmd.write_or_delete_file('entry points', filename, defn, True)
+
+
+def _egg_basename(egg_name, egg_version, py_version=None, platform=None):
+    """Compute filename of the output egg. Private API."""
+    name = _normalization.filename_component(egg_name)
+    version = _normalization.filename_component(egg_version)
+    egg = f"{name}-{version}-py{py_version or PY_MAJOR}"
+    if platform:
+        egg += f"-{platform}"
+    return egg
+
+
+class EggInfoDeprecationWarning(SetuptoolsDeprecationWarning):
+    """Deprecated behavior warning for EggInfo, bypassing suppression."""
diff --git a/setuptools/command/install.py b/setuptools/command/install.py
index a150c43505..ba667c5d16 100644
--- a/setuptools/command/install.py
+++ b/setuptools/command/install.py
@@ -1,123 +1,149 @@
-import setuptools, sys, glob
-from distutils.command.install import install as _install
+from __future__ import annotations
+
+import inspect
+import platform
+from collections.abc import Callable
+from typing import TYPE_CHECKING, Any, ClassVar
+
+from ..dist import Distribution
+from ..warnings import SetuptoolsDeprecationWarning, SetuptoolsWarning
+
+import distutils.command.install as orig
 from distutils.errors import DistutilsArgError
 
-class install(_install):
+if TYPE_CHECKING:
+    # This is only used for a type-cast, don't import at runtime or it'll cause deprecation warnings
+    from .easy_install import easy_install as easy_install_cls
+else:
+    easy_install_cls = None
+
+
+def __getattr__(name: str):  # pragma: no cover
+    if name == "_install":
+        SetuptoolsDeprecationWarning.emit(
+            "`setuptools.command._install` was an internal implementation detail "
+            + "that was left in for numpy<1.9 support.",
+            due_date=(2025, 5, 2),  # Originally added on 2024-11-01
+        )
+        return orig.install
+    raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
+
+
+class install(orig.install):
     """Use easy_install to install the package, w/dependencies"""
 
-    user_options = _install.user_options + [
+    distribution: Distribution  # override distutils.dist.Distribution with setuptools.dist.Distribution
+
+    user_options = orig.install.user_options + [
         ('old-and-unmanageable', None, "Try not to use this!"),
-        ('single-version-externally-managed', None,
-            "used by system package builders to create 'flat' eggs"),
+        (
+            'single-version-externally-managed',
+            None,
+            "used by system package builders to create 'flat' eggs",
+        ),
     ]
-    boolean_options = _install.boolean_options + [
-        'old-and-unmanageable', 'single-version-externally-managed',
+    boolean_options = orig.install.boolean_options + [
+        'old-and-unmanageable',
+        'single-version-externally-managed',
     ]
-    new_commands = [
+    # Type the same as distutils.command.install.install.sub_commands
+    # Must keep the second tuple item potentially None due to invariance
+    new_commands: ClassVar[list[tuple[str, Callable[[Any], bool] | None]]] = [
         ('install_egg_info', lambda self: True),
-        ('install_scripts',  lambda self: True),
+        ('install_scripts', lambda self: True),
     ]
     _nc = dict(new_commands)
-    sub_commands = [
-        cmd for cmd in _install.sub_commands if cmd[0] not in _nc
-    ] + new_commands
 
     def initialize_options(self):
-        _install.initialize_options(self)
+        SetuptoolsDeprecationWarning.emit(
+            "setup.py install is deprecated.",
+            """
+            Please avoid running ``setup.py`` directly.
+            Instead, use pypa/build, pypa/installer or other
+            standards-based tools.
+            """,
+            see_url="https://blog.ganssle.io/articles/2021/10/setup-py-deprecated.html",
+            # TODO: Document how to bootstrap setuptools without install
+            #       (e.g. by unzipping the wheel file)
+            #       and then add a due_date to this warning.
+        )
+
+        super().initialize_options()
         self.old_and_unmanageable = None
         self.single_version_externally_managed = None
-        self.no_compile = None  # make DISTUTILS_DEBUG work right!
 
-    def finalize_options(self):
-        _install.finalize_options(self)
+    def finalize_options(self) -> None:
+        super().finalize_options()
         if self.root:
             self.single_version_externally_managed = True
         elif self.single_version_externally_managed:
             if not self.root and not self.record:
                 raise DistutilsArgError(
-                    "You must specify --record or --root when building system"
-                    " packages"
+                    "You must specify --record or --root when building system packages"
                 )
 
     def handle_extra_path(self):
         if self.root or self.single_version_externally_managed:
             # explicit backward-compatibility mode, allow extra_path to work
-            return _install.handle_extra_path(self)
+            return orig.install.handle_extra_path(self)
 
         # Ignore extra_path when installing an egg (or being run by another
         # command without --root or --single-version-externally-managed
         self.path_file = None
         self.extra_dirs = ''
-
+        return None
 
     def run(self):
         # Explicit request for old-style install?  Just do it
         if self.old_and_unmanageable or self.single_version_externally_managed:
-            return _install.run(self)
-
-        # Attempt to detect whether we were called from setup() or by another
-        # command.  If we were called by setup(), our caller will be the
-        # 'run_command' method in 'distutils.dist', and *its* caller will be
-        # the 'run_commands' method.  If we were called any other way, our
-        # immediate caller *might* be 'run_command', but it won't have been
-        # called by 'run_commands'.  This is slightly kludgy, but seems to
-        # work.
-        #
-        caller = sys._getframe(2)
-        caller_module = caller.f_globals.get('__name__','')
-        caller_name = caller.f_code.co_name
-
-        if caller_module != 'distutils.dist' or caller_name!='run_commands':
-            # We weren't called from the command line or setup(), so we
-            # should run in backward-compatibility mode to support bdist_*
-            # commands.
-            _install.run(self)
+            return super().run()
+
+        if not self._called_from_setup(inspect.currentframe()):
+            # Run in backward-compatibility mode to support bdist_* commands.
+            super().run()
         else:
             self.do_egg_install()
 
-
-
-
-
-
-    def do_egg_install(self):
-
-        easy_install = self.distribution.get_command_class('easy_install')
-
-        cmd = easy_install(
-            self.distribution, args="x", root=self.root, record=self.record,
-        )
-        cmd.ensure_finalized()  # finalize before bdist_egg munges install cmd
-        cmd.always_copy_from = '.'  # make sure local-dir eggs get installed
-
-        # pick up setup-dir .egg files only: no .egg-info
-        cmd.package_index.scan(glob.glob('*.egg'))
-
-        self.run_command('bdist_egg')
-        args = [self.distribution.get_command_obj('bdist_egg').egg_output]
-
-        if setuptools.bootstrap_install_from:
-            # Bootstrap self-installation of setuptools
-            args.insert(0, setuptools.bootstrap_install_from)
-
-        cmd.args = args
-        cmd.run()
-        setuptools.bootstrap_install_from = None
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-#
+        return None
+
+    @staticmethod
+    def _called_from_setup(run_frame):
+        """
+        Attempt to detect whether run() was called from setup() or by another
+        command.  If called by setup(), the parent caller will be the
+        'run_command' method in 'distutils.dist', and *its* caller will be
+        the 'run_commands' method.  If called any other way, the
+        immediate caller *might* be 'run_command', but it won't have been
+        called by 'run_commands'. Return True in that case or if a call stack
+        is unavailable. Return False otherwise.
+        """
+        if run_frame is None:
+            msg = "Call stack not available. bdist_* commands may fail."
+            SetuptoolsWarning.emit(msg)
+            if platform.python_implementation() == 'IronPython':
+                msg = "For best results, pass -X:Frames to enable call stack."
+                SetuptoolsWarning.emit(msg)
+            return True
+
+        frames = inspect.getouterframes(run_frame)
+        for frame in frames[2:4]:
+            (caller,) = frame[:1]
+            info = inspect.getframeinfo(caller)
+            caller_module = caller.f_globals.get('__name__', '')
+
+            if caller_module == "setuptools.dist" and info.function == "run_command":
+                # Starting from v61.0.0 setuptools overwrites dist.run_command
+                continue
+
+            return caller_module == 'distutils.dist' and info.function == 'run_commands'
+
+        return False
+
+    def do_egg_install(self) -> None:
+        raise NotImplementedError("Support for egg-based install has been removed.")
+
+
+# XXX Python 3.1 doesn't see _nc if this is inside the class
+install.sub_commands = [
+    cmd for cmd in orig.install.sub_commands if cmd[0] not in install._nc
+] + install.new_commands
diff --git a/setuptools/command/install_egg_info.py b/setuptools/command/install_egg_info.py
old mode 100755
new mode 100644
index 939340c503..44f22ccf51
--- a/setuptools/command/install_egg_info.py
+++ b/setuptools/command/install_egg_info.py
@@ -1,9 +1,14 @@
-from setuptools import Command
+import os
+
+from setuptools import Command, namespaces
 from setuptools.archive_util import unpack_archive
-from distutils import log, dir_util
-import os, shutil, pkg_resources
 
-class install_egg_info(Command):
+from .._path import ensure_directory
+
+from distutils import dir_util, log
+
+
+class install_egg_info(namespaces.Installer, Command):
     """Install an .egg-info directory for the package"""
 
     description = "Install an .egg-info directory for the package"
@@ -15,109 +20,39 @@ class install_egg_info(Command):
     def initialize_options(self):
         self.install_dir = None
 
-    def finalize_options(self):
-        self.set_undefined_options('install_lib',('install_dir','install_dir'))
+    def finalize_options(self) -> None:
+        self.set_undefined_options('install_lib', ('install_dir', 'install_dir'))
         ei_cmd = self.get_finalized_command("egg_info")
-        basename = pkg_resources.Distribution(
-            None, None, ei_cmd.egg_name, ei_cmd.egg_version
-        ).egg_name()+'.egg-info'
+        basename = f"{ei_cmd._get_egg_basename()}.egg-info"
         self.source = ei_cmd.egg_info
         self.target = os.path.join(self.install_dir, basename)
-        self.outputs = [self.target]
+        self.outputs: list[str] = []
 
-    def run(self):
+    def run(self) -> None:
         self.run_command('egg_info')
-        target = self.target
         if os.path.isdir(self.target) and not os.path.islink(self.target):
             dir_util.remove_tree(self.target, dry_run=self.dry_run)
         elif os.path.exists(self.target):
-            self.execute(os.unlink,(self.target,),"Removing "+self.target)
+            self.execute(os.unlink, (self.target,), "Removing " + self.target)
         if not self.dry_run:
-            pkg_resources.ensure_directory(self.target)
-        self.execute(self.copytree, (),
-            "Copying %s to %s" % (self.source, self.target)
-        )
+            ensure_directory(self.target)
+        self.execute(self.copytree, (), f"Copying {self.source} to {self.target}")
         self.install_namespaces()
 
     def get_outputs(self):
         return self.outputs
 
-    def copytree(self):
+    def copytree(self) -> None:
         # Copy the .egg-info tree to site-packages
-        def skimmer(src,dst):
+        def skimmer(src, dst):
             # filter out source-control directories; note that 'src' is always
             # a '/'-separated path, regardless of platform.  'dst' is a
             # platform-specific path.
-            for skip in '.svn/','CVS/':
-                if src.startswith(skip) or '/'+skip in src:
+            for skip in '.svn/', 'CVS/':
+                if src.startswith(skip) or '/' + skip in src:
                     return None
             self.outputs.append(dst)
             log.debug("Copying %s to %s", src, dst)
             return dst
-        unpack_archive(self.source, self.target, skimmer)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-    def install_namespaces(self):
-        nsp = self._get_all_ns_packages()
-        if not nsp: return
-        filename,ext = os.path.splitext(self.target)
-        filename += '-nspkg.pth'; self.outputs.append(filename)
-        log.info("Installing %s",filename)
-        if not self.dry_run:
-            f = open(filename,'wb')
-            for pkg in nsp:
-                pth = tuple(pkg.split('.'))
-                trailer = '\n'
-                if '.' in pkg:
-                    trailer = (
-                        "; m and setattr(sys.modules[%r], %r, m)\n"
-                        % ('.'.join(pth[:-1]), pth[-1])
-                    )
-                f.write(
-                    "import sys,new,os; "
-                    "p = os.path.join(sys._getframe(1).f_locals['sitedir'], "
-                        "*%(pth)r); "
-                    "ie = os.path.exists(os.path.join(p,'__init__.py')); "
-                    "m = not ie and "
-                        "sys.modules.setdefault(%(pkg)r,new.module(%(pkg)r)); "
-                    "mp = (m or []) and m.__dict__.setdefault('__path__',[]); "
-                    "(p not in mp) and mp.append(p)%(trailer)s"
-                    % locals()
-                )
-            f.close()
-
-    def _get_all_ns_packages(self):
-        nsp = {}
-        for pkg in self.distribution.namespace_packages or []:
-            pkg = pkg.split('.')
-            while pkg:
-                nsp['.'.join(pkg)] = 1
-                pkg.pop()
-        nsp=list(nsp)
-        nsp.sort()  # set up shorter names first
-        return nsp
-
 
+        unpack_archive(self.source, self.target, skimmer)
diff --git a/setuptools/command/install_lib.py b/setuptools/command/install_lib.py
index 82afa1421b..8e1e072710 100644
--- a/setuptools/command/install_lib.py
+++ b/setuptools/command/install_lib.py
@@ -1,22 +1,21 @@
-from distutils.command.install_lib import install_lib as _install_lib
+from __future__ import annotations
+
 import os
+import sys
+from itertools import product, starmap
 
-class install_lib(_install_lib):
-    """Don't add compiled flags to filenames of non-Python files"""
+from .._path import StrPath
+from ..dist import Distribution
+
+import distutils.command.install_lib as orig
 
-    def _bytecode_filenames (self, py_filenames):
-        bytecode_files = []
-        for py_file in py_filenames:
-            if not py_file.endswith('.py'):
-                continue
-            if self.compile:
-                bytecode_files.append(py_file + "c")
-            if self.optimize > 0:
-                bytecode_files.append(py_file + "o")
 
-        return bytecode_files
+class install_lib(orig.install_lib):
+    """Don't add compiled flags to filenames of non-Python files"""
+
+    distribution: Distribution  # override distutils.dist.Distribution with setuptools.dist.Distribution
 
-    def run(self):
+    def run(self) -> None:
         self.build()
         outfiles = self.install()
         if outfiles is not None:
@@ -24,41 +23,103 @@ def run(self):
             self.byte_compile(outfiles)
 
     def get_exclusions(self):
-        exclude = {}
-        nsp = self.distribution.namespace_packages
-
-        if (nsp and self.get_finalized_command('install')
-               .single_version_externally_managed
-        ):
-            for pkg in nsp:
-                parts = pkg.split('.')
-                while parts:
-                    pkgdir = os.path.join(self.install_dir, *parts)
-                    for f in '__init__.py', '__init__.pyc', '__init__.pyo':
-                        exclude[os.path.join(pkgdir,f)] = 1
-                    parts.pop()
-        return exclude
+        """
+        Return a collections.Sized collections.Container of paths to be
+        excluded for single_version_externally_managed installations.
+        """
+        all_packages = (
+            pkg
+            for ns_pkg in self._get_SVEM_NSPs()
+            for pkg in self._all_packages(ns_pkg)
+        )
+
+        excl_specs = product(all_packages, self._gen_exclusion_paths())
+        return set(starmap(self._exclude_pkg_path, excl_specs))
+
+    def _exclude_pkg_path(self, pkg, exclusion_path):
+        """
+        Given a package name and exclusion path within that package,
+        compute the full exclusion path.
+        """
+        parts = pkg.split('.') + [exclusion_path]
+        return os.path.join(self.install_dir, *parts)
+
+    @staticmethod
+    def _all_packages(pkg_name):
+        """
+        >>> list(install_lib._all_packages('foo.bar.baz'))
+        ['foo.bar.baz', 'foo.bar', 'foo']
+        """
+        while pkg_name:
+            yield pkg_name
+            pkg_name, _sep, _child = pkg_name.rpartition('.')
+
+    def _get_SVEM_NSPs(self):
+        """
+        Get namespace packages (list) but only for
+        single_version_externally_managed installations and empty otherwise.
+        """
+        # TODO: is it necessary to short-circuit here? i.e. what's the cost
+        # if get_finalized_command is called even when namespace_packages is
+        # False?
+        if not self.distribution.namespace_packages:
+            return []
+
+        install_cmd = self.get_finalized_command('install')
+        svem = install_cmd.single_version_externally_managed
+
+        return self.distribution.namespace_packages if svem else []
+
+    @staticmethod
+    def _gen_exclusion_paths():
+        """
+        Generate file paths to be excluded for namespace packages (bytecode
+        cache files).
+        """
+        # always exclude the package module itself
+        yield '__init__.py'
+
+        yield '__init__.pyc'
+        yield '__init__.pyo'
+
+        if not hasattr(sys, 'implementation'):
+            return
+
+        base = os.path.join('__pycache__', '__init__.' + sys.implementation.cache_tag)
+        yield base + '.pyc'
+        yield base + '.pyo'
+        yield base + '.opt-1.pyc'
+        yield base + '.opt-2.pyc'
 
     def copy_tree(
-        self, infile, outfile,
-        preserve_mode=1, preserve_times=1, preserve_symlinks=0, level=1
-    ):
-        assert preserve_mode and preserve_times and not preserve_symlinks
+        self,
+        infile: StrPath,
+        outfile: str,
+        # override: Using actual booleans
+        preserve_mode: bool = True,  # type: ignore[override]
+        preserve_times: bool = True,  # type: ignore[override]
+        preserve_symlinks: bool = False,  # type: ignore[override]
+        level: object = 1,
+    ) -> list[str]:
+        assert preserve_mode
+        assert preserve_times
+        assert not preserve_symlinks
         exclude = self.get_exclusions()
 
         if not exclude:
-            return _install_lib.copy_tree(self, infile, outfile)
+            return orig.install_lib.copy_tree(self, infile, outfile)
 
         # Exclude namespace package __init__.py* files from the output
 
         from setuptools.archive_util import unpack_directory
+
         from distutils import log
 
-        outfiles = []
+        outfiles: list[str] = []
 
-        def pf(src, dst):
+        def pf(src: str, dst: str):
             if dst in exclude:
-                log.warn("Skipping installation of %s (namespace package)",dst)
+                log.warn("Skipping installation of %s (namespace package)", dst)
                 return False
 
             log.info("copying %s -> %s", src, os.path.dirname(dst))
@@ -69,14 +130,8 @@ def pf(src, dst):
         return outfiles
 
     def get_outputs(self):
-        outputs = _install_lib.get_outputs(self)
+        outputs = orig.install_lib.get_outputs(self)
         exclude = self.get_exclusions()
         if exclude:
             return [f for f in outputs if f not in exclude]
         return outputs
-
-
-
-
-
-
diff --git a/setuptools/command/install_scripts.py b/setuptools/command/install_scripts.py
old mode 100755
new mode 100644
index c2dc2d5919..4401cf693d
--- a/setuptools/command/install_scripts.py
+++ b/setuptools/command/install_scripts.py
@@ -1,82 +1,73 @@
-from distutils.command.install_scripts import install_scripts \
-     as _install_scripts
-from easy_install import get_script_args, sys_executable, chmod
-from pkg_resources import Distribution, PathMetadata, ensure_directory
+from __future__ import annotations
+
 import os
+import sys
+
+from .._path import ensure_directory
+from ..dist import Distribution
+
+import distutils.command.install_scripts as orig
 from distutils import log
 
-class install_scripts(_install_scripts):
+
+class install_scripts(orig.install_scripts):
     """Do normal script install, plus any egg_info wrapper scripts"""
 
-    def initialize_options(self):
-        _install_scripts.initialize_options(self)
+    distribution: Distribution  # override distutils.dist.Distribution with setuptools.dist.Distribution
+
+    def initialize_options(self) -> None:
+        orig.install_scripts.initialize_options(self)
         self.no_ep = False
-   
-    def run(self):
+
+    def run(self) -> None:
         self.run_command("egg_info")
         if self.distribution.scripts:
-            _install_scripts.run(self)  # run first to set up self.outfiles
+            orig.install_scripts.run(self)  # run first to set up self.outfiles
         else:
-            self.outfiles = []
+            self.outfiles: list[str] = []
         if self.no_ep:
             # don't install entry point scripts into .egg file!
-            return  
+            return
+        self._install_ep_scripts()
 
-        ei_cmd = self.get_finalized_command("egg_info")       
+    def _install_ep_scripts(self):
+        # Delay import side-effects
+        from pkg_resources import Distribution, PathMetadata
+
+        from . import easy_install as ei
+
+        ei_cmd = self.get_finalized_command("egg_info")
         dist = Distribution(
-            ei_cmd.egg_base, PathMetadata(ei_cmd.egg_base, ei_cmd.egg_info),
-            ei_cmd.egg_name, ei_cmd.egg_version,
+            ei_cmd.egg_base,
+            PathMetadata(ei_cmd.egg_base, ei_cmd.egg_info),
+            ei_cmd.egg_name,
+            ei_cmd.egg_version,
         )
         bs_cmd = self.get_finalized_command('build_scripts')
-        executable = getattr(bs_cmd,'executable',sys_executable)
-        is_wininst = getattr(
-            self.get_finalized_command("bdist_wininst"), '_is_running', False
-        )
-        for args in get_script_args(dist, executable, is_wininst):
+        exec_param = getattr(bs_cmd, 'executable', None)
+        writer = ei.ScriptWriter
+        if exec_param == sys.executable:
+            # In case the path to the Python executable contains a space, wrap
+            # it so it's not split up.
+            exec_param = [exec_param]
+        # resolve the writer to the environment
+        writer = writer.best()
+        cmd = writer.command_spec_class.best().from_param(exec_param)
+        for args in writer.get_args(dist, cmd.as_header()):
             self.write_script(*args)
 
-
-
-
-
-    def write_script(self, script_name, contents, mode="t", *ignored):
+    def write_script(self, script_name, contents, mode: str = "t", *ignored) -> None:
         """Write an executable file to the scripts directory"""
+        from setuptools.command.easy_install import chmod, current_umask
+
         log.info("Installing %s script to %s", script_name, self.install_dir)
         target = os.path.join(self.install_dir, script_name)
         self.outfiles.append(target)
 
+        encoding = None if "b" in mode else "utf-8"
+        mask = current_umask()
         if not self.dry_run:
             ensure_directory(target)
-            f = open(target,"w"+mode)
-            f.write(contents)
-            f.close()
-            chmod(target,0755)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+            with open(target, "w" + mode, encoding=encoding) as f:
+                f.write(contents)
+            chmod(target, 0o777 - mask)
diff --git a/setuptools/command/launcher manifest.xml b/setuptools/command/launcher manifest.xml
new file mode 100644
index 0000000000..5972a96d8d
--- /dev/null
+++ b/setuptools/command/launcher manifest.xml	
@@ -0,0 +1,15 @@
+
+
+    
+    
+    
+        
+            
+                
+            
+        
+    
+
diff --git a/setuptools/command/register.py b/setuptools/command/register.py
deleted file mode 100755
index 3b2e085907..0000000000
--- a/setuptools/command/register.py
+++ /dev/null
@@ -1,10 +0,0 @@
-from distutils.command.register import register as _register
-
-class register(_register):
-    __doc__ = _register.__doc__
-
-    def run(self):
-        # Make sure that we are using valid current name/version info
-        self.run_command('egg_info')
-        _register.run(self)
-
diff --git a/setuptools/command/rotate.py b/setuptools/command/rotate.py
old mode 100755
new mode 100644
index 11b6eae82b..acdce07baa
--- a/setuptools/command/rotate.py
+++ b/setuptools/command/rotate.py
@@ -1,82 +1,65 @@
-import distutils, os
-from setuptools import Command
-from distutils.util import convert_path
+from __future__ import annotations
+
+import os
+from typing import ClassVar
+
+from .. import Command, _shutil
+
 from distutils import log
-from distutils.errors import *
+from distutils.errors import DistutilsOptionError
+from distutils.util import convert_path
+
 
 class rotate(Command):
     """Delete older distributions"""
 
     description = "delete older distributions, keeping N newest files"
     user_options = [
-        ('match=',    'm', "patterns to match (required)"),
+        ('match=', 'm', "patterns to match (required)"),
         ('dist-dir=', 'd', "directory where the distributions are"),
-        ('keep=',     'k', "number of matching distributions to keep"),
+        ('keep=', 'k', "number of matching distributions to keep"),
     ]
 
-    boolean_options = []
+    boolean_options: ClassVar[list[str]] = []
 
     def initialize_options(self):
         self.match = None
         self.dist_dir = None
         self.keep = None
 
-    def finalize_options(self):
+    def finalize_options(self) -> None:
         if self.match is None:
             raise DistutilsOptionError(
                 "Must specify one or more (comma-separated) match patterns "
                 "(e.g. '.zip' or '.egg')"
             )
         if self.keep is None:
-            raise DistutilsOptionError("Must specify number of files to keep")           
+            raise DistutilsOptionError("Must specify number of files to keep")
         try:
             self.keep = int(self.keep)
-        except ValueError:
-            raise DistutilsOptionError("--keep must be an integer")
-        if isinstance(self.match, basestring):
-            self.match = [
-                convert_path(p.strip()) for p in self.match.split(',')
-            ]
-        self.set_undefined_options('bdist',('dist_dir', 'dist_dir'))
+        except ValueError as e:
+            raise DistutilsOptionError("--keep must be an integer") from e
+        if isinstance(self.match, str):
+            self.match = [convert_path(p.strip()) for p in self.match.split(',')]
+        self.set_undefined_options('bdist', ('dist_dir', 'dist_dir'))
 
-    def run(self):
+    def run(self) -> None:
         self.run_command("egg_info")
         from glob import glob
+
         for pattern in self.match:
-            pattern = self.distribution.get_name()+'*'+pattern
-            files = glob(os.path.join(self.dist_dir,pattern))
-            files = [(os.path.getmtime(f),f) for f in files]
+            pattern = self.distribution.get_name() + '*' + pattern
+            files = glob(os.path.join(self.dist_dir, pattern))
+            files = [(os.path.getmtime(f), f) for f in files]
             files.sort()
             files.reverse()
 
             log.info("%d file(s) matching %s", len(files), pattern)
-            files = files[self.keep:]
-            for (t,f) in files:
+            files = files[self.keep :]
+            for t, f in files:
                 log.info("Deleting %s", f)
                 if not self.dry_run:
-                    os.unlink(f)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+                    if os.path.isdir(f):
+                        _shutil.rmtree(f)
+                    else:
+                        os.unlink(f)
diff --git a/setuptools/command/saveopts.py b/setuptools/command/saveopts.py
old mode 100755
new mode 100644
index 1180a440c9..2a2cbce6e2
--- a/setuptools/command/saveopts.py
+++ b/setuptools/command/saveopts.py
@@ -1,25 +1,21 @@
-import distutils, os
-from setuptools import Command
 from setuptools.command.setopt import edit_config, option_base
 
+
 class saveopts(option_base):
     """Save command-line options to a file"""
 
     description = "save supplied options to setup.cfg or other config file"
 
-    def run(self):
+    def run(self) -> None:
         dist = self.distribution
-        commands = dist.command_options.keys()
-        settings = {}
-
-        for cmd in commands:
+        settings: dict[str, dict[str, str]] = {}
 
-            if cmd=='saveopts':
-                continue    # don't save our own options!
+        for cmd in dist.command_options:
+            if cmd == 'saveopts':
+                continue  # don't save our own options!
 
-            for opt,(src,val) in dist.get_option_dict(cmd).items():
-                if src=="command line":
-                    settings.setdefault(cmd,{})[opt] = val
+            for opt, (src, val) in dist.get_option_dict(cmd).items():
+                if src == "command line":
+                    settings.setdefault(cmd, {})[opt] = val
 
         edit_config(self.filename, settings, self.dry_run)
-
diff --git a/setuptools/command/sdist.py b/setuptools/command/sdist.py
old mode 100755
new mode 100644
index 50c4c00906..9631cf3114
--- a/setuptools/command/sdist.py
+++ b/setuptools/command/sdist.py
@@ -1,231 +1,184 @@
-from distutils.command.sdist import sdist as _sdist
-from distutils.util import convert_path
-from distutils import log
-import os, re, sys, pkg_resources
-from glob import glob
-
-entities = [
-    ("<","<"), (">", ">"), (""", '"'), ("'", "'"),
-    ("&", "&")
-]
-
-def unescape(data):
-    for old,new in entities:
-        data = data.replace(old,new)
-    return data
-
-def re_finder(pattern, postproc=None):
-    def find(dirname, filename):
-        f = open(filename,'rU')
-        data = f.read()
-        f.close()
-        for match in pattern.finditer(data):
-            path = match.group(1)
-            if postproc:
-                path = postproc(path)
-            yield joinpath(dirname,path)
-    return find
-
-def joinpath(prefix,suffix):
-    if not prefix:
-        return suffix
-    return os.path.join(prefix,suffix)
-
-
-
-
+from __future__ import annotations
 
+import contextlib
+import os
+import re
+from itertools import chain
+from typing import ClassVar
 
+from .._importlib import metadata
+from ..dist import Distribution
+from .build import _ORIGINAL_SUBCOMMANDS
 
+import distutils.command.sdist as orig
+from distutils import log
 
+_default_revctrl = list
 
 
 def walk_revctrl(dirname=''):
     """Find all files under revision control"""
-    for ep in pkg_resources.iter_entry_points('setuptools.file_finders'):
-        for item in ep.load()(dirname):
-            yield item
-
-def _default_revctrl(dirname=''):
-    for path, finder in finders:
-        path = joinpath(dirname,path)
-        if os.path.isfile(path):
-            for path in finder(dirname,path):
-                if os.path.isfile(path):
-                    yield path
-                elif os.path.isdir(path):
-                    for item in _default_revctrl(path):
-                        yield item
-
-def externals_finder(dirname, filename):
-    """Find any 'svn:externals' directories"""
-    found = False
-    f = open(filename,'rb')
-    for line in iter(f.readline, ''):    # can't use direct iter!
-        parts = line.split()
-        if len(parts)==2:
-            kind,length = parts
-            data = f.read(int(length))
-            if kind=='K' and data=='svn:externals':
-                found = True
-            elif kind=='V' and found:
-                f.close()
-                break
-    else:
-        f.close()
-        return
-
-    for line in data.splitlines():
-        parts = line.split()
-        if parts:
-            yield joinpath(dirname, parts[0])
-
-
-entries_pattern = re.compile(r'name="([^"]+)"(?![^>]+deleted="true")', re.I)
-
-def entries_finder(dirname, filename):
-    f = open(filename,'rU')
-    data = f.read()
-    f.close()
-    if data.startswith('10') or data.startswith('9') or data.startswith('8'):
-        for record in map(str.splitlines, data.split('\n\x0c\n')[1:]):
-            # subversion 1.6/1.5/1.4
-            if not record or len(record)>=6 and record[5]=="delete":
-                continue    # skip deleted
-            yield joinpath(dirname, record[0])
-    elif data.startswith(' None:
         self.run_command('egg_info')
         ei_cmd = self.get_finalized_command('egg_info')
         self.filelist = ei_cmd.filelist
-        self.filelist.append(os.path.join(ei_cmd.egg_info,'SOURCES.txt'))
+        self.filelist.append(os.path.join(ei_cmd.egg_info, 'SOURCES.txt'))
         self.check_readme()
-        self.check_metadata()
+
+        # Run sub commands
+        for cmd_name in self.get_sub_commands():
+            self.run_command(cmd_name)
+
         self.make_distribution()
 
-        dist_files = getattr(self.distribution,'dist_files',[])
+        dist_files = getattr(self.distribution, 'dist_files', [])
         for file in self.archive_files:
             data = ('sdist', '', file)
             if data not in dist_files:
                 dist_files.append(data)
 
-    def add_defaults(self):
-        standards = [('README', 'README.txt'),
-                     self.distribution.script_name]
-        for fn in standards:
-            if isinstance(fn, tuple):
-                alts = fn
-                got_it = 0
-                for fn in alts:
-                    if os.path.exists(fn):
-                        got_it = 1
-                        self.filelist.append(fn)
-                        break
-
-                if not got_it:
-                    self.warn("standard file not found: should have one of " +
-                              ', '.join(alts))
-            else:
-                if os.path.exists(fn):
-                    self.filelist.append(fn)
-                else:
-                    self.warn("standard file '%s' not found" % fn)
-
-        optional = ['test/test*.py', 'setup.cfg']
-        for pattern in optional:
-            files = filter(os.path.isfile, glob(pattern))
-            if files:
-                self.filelist.extend(files)
-
-        # getting python files
-        if self.distribution.has_pure_modules():
-            build_py = self.get_finalized_command('build_py')
-            self.filelist.extend(build_py.get_source_files())
+    def initialize_options(self) -> None:
+        orig.sdist.initialize_options(self)
 
-        if self.distribution.has_ext_modules():
-            build_ext = self.get_finalized_command('build_ext')
-            self.filelist.extend(build_ext.get_source_files())
+    def make_distribution(self) -> None:
+        """
+        Workaround for #516
+        """
+        with self._remove_os_link():
+            orig.sdist.make_distribution(self)
 
-        if self.distribution.has_c_libraries():
-            build_clib = self.get_finalized_command('build_clib')
-            self.filelist.extend(build_clib.get_source_files())
+    @staticmethod
+    @contextlib.contextmanager
+    def _remove_os_link():
+        """
+        In a context, remove and restore os.link if it exists
+        """
 
-        if self.distribution.has_scripts():
-            build_scripts = self.get_finalized_command('build_scripts')
-            self.filelist.extend(build_scripts.get_source_files())
+        class NoValue:
+            pass
 
-    def read_template(self):
+        orig_val = getattr(os, 'link', NoValue)
+        try:
+            del os.link
+        except Exception:
+            pass
         try:
-            _sdist.read_template(self)
-        except:
-            # grody hack to close the template file (MANIFEST.in)
-            # this prevents easy_install's attempt at deleting the file from
-            # dying and thus masking the real error
-            sys.exc_info()[2].tb_next.tb_frame.f_locals['template'].close()
-            raise
-
-    def check_readme(self):
-        alts = ("README", "README.txt")
-        for f in alts:
+            yield
+        finally:
+            if orig_val is not NoValue:
+                os.link = orig_val
+
+    def add_defaults(self) -> None:
+        super().add_defaults()
+        self._add_defaults_build_sub_commands()
+
+    def _add_defaults_optional(self):
+        super()._add_defaults_optional()
+        if os.path.isfile('pyproject.toml'):
+            self.filelist.append('pyproject.toml')
+
+    def _add_defaults_python(self):
+        """getting python files"""
+        if self.distribution.has_pure_modules():
+            build_py = self.get_finalized_command('build_py')
+            self.filelist.extend(build_py.get_source_files())
+            self._add_data_files(self._safe_data_files(build_py))
+
+    def _add_defaults_build_sub_commands(self):
+        build = self.get_finalized_command("build")
+        missing_cmds = set(build.get_sub_commands()) - _ORIGINAL_SUBCOMMANDS
+        # ^-- the original built-in sub-commands are already handled by default.
+        cmds = (self.get_finalized_command(c) for c in missing_cmds)
+        files = (c.get_source_files() for c in cmds if hasattr(c, "get_source_files"))
+        self.filelist.extend(chain.from_iterable(files))
+
+    def _safe_data_files(self, build_py):
+        """
+        Since the ``sdist`` class is also used to compute the MANIFEST
+        (via :obj:`setuptools.command.egg_info.manifest_maker`),
+        there might be recursion problems when trying to obtain the list of
+        data_files and ``include_package_data=True`` (which in turn depends on
+        the files included in the MANIFEST).
+
+        To avoid that, ``manifest_maker`` should be able to overwrite this
+        method and avoid recursive attempts to build/analyze the MANIFEST.
+        """
+        return build_py.data_files
+
+    def _add_data_files(self, data_files):
+        """
+        Add data files as found in build_py.data_files.
+        """
+        self.filelist.extend(
+            os.path.join(src_dir, name)
+            for _, src_dir, _, filenames in data_files
+            for name in filenames
+        )
+
+    def _add_defaults_data_files(self):
+        try:
+            super()._add_defaults_data_files()
+        except TypeError:
+            log.warn("data_files contains unexpected objects")
+
+    def prune_file_list(self) -> None:
+        super().prune_file_list()
+        # Prevent accidental inclusion of test-related cache dirs at the project root
+        sep = re.escape(os.sep)
+        self.filelist.exclude_pattern(r"^(\.tox|\.nox|\.venv)" + sep, is_regex=True)
+
+    def check_readme(self) -> None:
+        for f in self.READMES:
             if os.path.exists(f):
                 return
         else:
             self.warn(
-                "standard file not found: should have one of " +', '.join(alts)
+                "standard file not found: should have one of " + ', '.join(self.READMES)
             )
 
-
-    def make_release_tree(self, base_dir, files):
-        _sdist.make_release_tree(self, base_dir, files)
+    def make_release_tree(self, base_dir, files) -> None:
+        orig.sdist.make_release_tree(self, base_dir, files)
 
         # Save any egg_info command line options used to create this sdist
         dest = os.path.join(base_dir, 'setup.cfg')
-        if hasattr(os,'link') and os.path.exists(dest):
+        if hasattr(os, 'link') and os.path.exists(dest):
             # unlink and re-copy, since it might be hard-linked, and
             # we don't want to change the source version
             os.unlink(dest)
@@ -233,20 +186,32 @@ def make_release_tree(self, base_dir, files):
 
         self.get_finalized_command('egg_info').save_version_info(dest)
 
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-#
+    def _manifest_is_not_generated(self):
+        # check for special comment used in 2.7.1 and higher
+        if not os.path.isfile(self.manifest):
+            return False
+
+        with open(self.manifest, 'rb') as fp:
+            first_line = fp.readline()
+        return first_line != b'# file GENERATED by distutils, do NOT edit\n'
+
+    def read_manifest(self):
+        """Read the manifest file (named by 'self.manifest') and use it to
+        fill in 'self.filelist', the list of files to include in the source
+        distribution.
+        """
+        log.info("reading manifest file '%s'", self.manifest)
+        manifest = open(self.manifest, 'rb')
+        for bytes_line in manifest:
+            # The manifest must contain UTF-8. See #303.
+            try:
+                line = bytes_line.decode('UTF-8')
+            except UnicodeDecodeError:
+                log.warn(f"{line!r} not UTF-8 decodable -- skipping")
+                continue
+            # ignore comments and blank lines
+            line = line.strip()
+            if line.startswith('#') or not line:
+                continue
+            self.filelist.append(line)
+        manifest.close()
diff --git a/setuptools/command/setopt.py b/setuptools/command/setopt.py
old mode 100755
new mode 100644
index dbf3a94ec1..678a0593d6
--- a/setuptools/command/setopt.py
+++ b/setuptools/command/setopt.py
@@ -1,8 +1,13 @@
-import distutils, os
-from setuptools import Command
-from distutils.util import convert_path
+import configparser
+import os
+
+from .. import Command
+from ..unicode_utils import _cfg_read_utf8_with_fallback
+
+import distutils
 from distutils import log
-from distutils.errors import *
+from distutils.errors import DistutilsOptionError
+from distutils.util import convert_path
 
 __all__ = ['config_file', 'edit_config', 'option_base', 'setopt']
 
@@ -12,31 +17,14 @@ def config_file(kind="local"):
 
     `kind` must be one of "local", "global", or "user"
     """
-    if kind=='local':
+    if kind == 'local':
         return 'setup.cfg'
-    if kind=='global':
-        return os.path.join(
-            os.path.dirname(distutils.__file__),'distutils.cfg'
-        )
-    if kind=='user':
-        dot = os.name=='posix' and '.' or ''
-        return os.path.expanduser(convert_path("~/%spydistutils.cfg" % dot))
-    raise ValueError(
-        "config_file() type must be 'local', 'global', or 'user'", kind
-    )
-
-
-
-
-
-
-
-
-
-
-
-
-
+    if kind == 'global':
+        return os.path.join(os.path.dirname(distutils.__file__), 'distutils.cfg')
+    if kind == 'user':
+        dot = os.name == 'posix' and '.' or ''
+        return os.path.expanduser(convert_path(f"~/{dot}pydistutils.cfg"))
+    raise ValueError("config_file() type must be 'local', 'global', or 'user'", kind)
 
 
 def edit_config(filename, settings, dry_run=False):
@@ -47,10 +35,11 @@ def edit_config(filename, settings, dry_run=False):
     while a dictionary lists settings to be changed or deleted in that section.
     A setting of ``None`` means to delete that setting.
     """
-    from ConfigParser import RawConfigParser
     log.debug("Reading configuration from %s", filename)
-    opts = RawConfigParser()
-    opts.read([filename])
+    opts = configparser.RawConfigParser()
+    opts.optionxform = lambda optionstr: optionstr  # type: ignore[method-assign] # overriding method
+    _cfg_read_utf8_with_fallback(opts, filename)
+
     for section, options in settings.items():
         if options is None:
             log.info("Deleting section [%s] from %s", section, filename)
@@ -59,46 +48,44 @@ def edit_config(filename, settings, dry_run=False):
             if not opts.has_section(section):
                 log.debug("Adding new section [%s] to %s", section, filename)
                 opts.add_section(section)
-            for option,value in options.items():
+            for option, value in options.items():
                 if value is None:
-                    log.debug("Deleting %s.%s from %s",
-                        section, option, filename
-                    )
-                    opts.remove_option(section,option)
+                    log.debug("Deleting %s.%s from %s", section, option, filename)
+                    opts.remove_option(section, option)
                     if not opts.options(section):
-                        log.info("Deleting empty [%s] section from %s",
-                                  section, filename)
+                        log.info(
+                            "Deleting empty [%s] section from %s", section, filename
+                        )
                         opts.remove_section(section)
                 else:
                     log.debug(
-                        "Setting %s.%s to %r in %s",
-                        section, option, value, filename
+                        "Setting %s.%s to %r in %s", section, option, value, filename
                     )
-                    opts.set(section,option,value)
+                    opts.set(section, option, value)
 
     log.info("Writing %s", filename)
     if not dry_run:
-        f = open(filename,'w'); opts.write(f); f.close()
+        with open(filename, 'w', encoding="utf-8") as f:
+            opts.write(f)
+
 
 class option_base(Command):
     """Abstract base class for commands that mess with config files"""
-    
+
     user_options = [
-        ('global-config', 'g',
-                 "save options to the site-wide distutils.cfg file"),
-        ('user-config', 'u',
-                 "save options to the current user's pydistutils.cfg file"),
-        ('filename=', 'f',
-                 "configuration file to use (default=setup.cfg)"),
+        ('global-config', 'g', "save options to the site-wide distutils.cfg file"),
+        ('user-config', 'u', "save options to the current user's pydistutils.cfg file"),
+        ('filename=', 'f', "configuration file to use (default=setup.cfg)"),
     ]
 
     boolean_options = [
-        'global-config', 'user-config',
-    ]    
+        'global-config',
+        'user-config',
+    ]
 
     def initialize_options(self):
         self.global_config = None
-        self.user_config   = None
+        self.user_config = None
         self.filename = None
 
     def finalize_options(self):
@@ -111,14 +98,11 @@ def finalize_options(self):
             filenames.append(self.filename)
         if not filenames:
             filenames.append(config_file('local'))
-        if len(filenames)>1:
+        if len(filenames) > 1:
             raise DistutilsOptionError(
-                "Must specify only one configuration file option",
-                filenames
+                "Must specify only one configuration file option", filenames
             )
-        self.filename, = filenames    
-
-
+        (self.filename,) = filenames
 
 
 class setopt(option_base):
@@ -128,9 +112,9 @@ class setopt(option_base):
 
     user_options = [
         ('command=', 'c', 'command to set an option for'),
-        ('option=',  'o',  'option to set'),
-        ('set-value=',   's', 'value of the option'),
-        ('remove',   'r', 'remove (unset) the value'), 
+        ('option=', 'o', 'option to set'),
+        ('set-value=', 's', 'value of the option'),
+        ('remove', 'r', 'remove (unset) the value'),
     ] + option_base.user_options
 
     boolean_options = option_base.boolean_options + ['remove']
@@ -142,23 +126,16 @@ def initialize_options(self):
         self.set_value = None
         self.remove = None
 
-    def finalize_options(self):
+    def finalize_options(self) -> None:
         option_base.finalize_options(self)
         if self.command is None or self.option is None:
             raise DistutilsOptionError("Must specify --command *and* --option")
         if self.set_value is None and not self.remove:
             raise DistutilsOptionError("Must specify --set-value or --remove")
 
-    def run(self):
+    def run(self) -> None:
         edit_config(
-            self.filename, {
-                self.command: {self.option.replace('-','_'):self.set_value}
-            },
-            self.dry_run
+            self.filename,
+            {self.command: {self.option.replace('-', '_'): self.set_value}},
+            self.dry_run,
         )
-
-
-
-
-
-
diff --git a/setuptools/command/test.py b/setuptools/command/test.py
index db918dae06..341b11a20e 100644
--- a/setuptools/command/test.py
+++ b/setuptools/command/test.py
@@ -1,164 +1,45 @@
-from setuptools import Command
-from distutils.errors import DistutilsOptionError
-import sys
-from pkg_resources import *
-from unittest import TestLoader, main
-
-class ScanningLoader(TestLoader):
-
-    def loadTestsFromModule(self, module):
-        """Return a suite of all tests cases contained in the given module
-
-        If the module is a package, load tests from all the modules in it.
-        If the module has an ``additional_tests`` function, call it and add
-        the return value to the tests.
-        """
-        tests = []
-        if module.__name__!='setuptools.tests.doctest':  # ugh
-            tests.append(TestLoader.loadTestsFromModule(self,module))
-
-        if hasattr(module, "additional_tests"):
-            tests.append(module.additional_tests())
-
-        if hasattr(module, '__path__'):
-            for file in resource_listdir(module.__name__, ''):
-                if file.endswith('.py') and file!='__init__.py':
-                    submodule = module.__name__+'.'+file[:-3]
-                else:
-                    if resource_exists(
-                        module.__name__, file+'/__init__.py'
-                    ):
-                        submodule = module.__name__+'.'+file
-                    else:
-                        continue
-                tests.append(self.loadTestsFromName(submodule))
-
-        if len(tests)!=1:
-            return self.suiteClass(tests)
-        else:
-            return tests[0] # don't create a nested suite for only one return
+from __future__ import annotations
 
+from setuptools import Command
+from setuptools.warnings import SetuptoolsDeprecationWarning
+
+
+# Would restrict to Literal["test"], but mypy doesn't support it: https://github.com/python/mypy/issues/8203
+def __getattr__(name: str) -> type[_test]:
+    if name == 'test':
+        SetuptoolsDeprecationWarning.emit(
+            "The test command is disabled and references to it are deprecated.",
+            "Please remove any references to `setuptools.command.test` in all "
+            "supported versions of the affected package.",
+            due_date=(2024, 11, 15),
+            stacklevel=2,
+        )
+        return _test
+    raise AttributeError(name)
 
-class test(Command):
 
-    """Command to run unit tests after in-place build"""
+class _test(Command):
+    """
+    Stub to warn when test command is referenced or used.
+    """
 
-    description = "run unit tests after in-place build"
+    description = "stub for old test command (do not use)"
 
     user_options = [
-        ('test-module=','m', "Run 'test_suite' in specified module"),
-        ('test-suite=','s',
-            "Test suite to run (e.g. 'some_module.test_suite')"),
+        ('test-module=', 'm', "Run 'test_suite' in specified module"),
+        (
+            'test-suite=',
+            's',
+            "Run single test, case or suite (e.g. 'module.test_suite')",
+        ),
+        ('test-runner=', 'r', "Test runner to use"),
     ]
 
     def initialize_options(self):
-        self.test_suite = None
-        self.test_module = None
-        self.test_loader = None
-
+        pass
 
     def finalize_options(self):
-
-        if self.test_suite is None:
-            if self.test_module is None:
-                self.test_suite = self.distribution.test_suite
-            else:
-                self.test_suite = self.test_module+".test_suite"
-        elif self.test_module:
-            raise DistutilsOptionError(
-                "You may specify a module or a suite, but not both"
-            )
-
-        self.test_args = [self.test_suite]
-
-        if self.verbose:
-            self.test_args.insert(0,'--verbose')
-        if self.test_loader is None:
-            self.test_loader = getattr(self.distribution,'test_loader',None)
-        if self.test_loader is None:
-            self.test_loader = "setuptools.command.test:ScanningLoader"
-
-
-
-    def with_project_on_sys_path(self, func):
-        # Ensure metadata is up-to-date
-        self.run_command('egg_info')
-
-        # Build extensions in-place
-        self.reinitialize_command('build_ext', inplace=1)
-        self.run_command('build_ext')
-
-        ei_cmd = self.get_finalized_command("egg_info")
-
-        old_path = sys.path[:]
-        old_modules = sys.modules.copy()
-
-        try:
-            sys.path.insert(0, normalize_path(ei_cmd.egg_base))
-            working_set.__init__()
-            add_activation_listener(lambda dist: dist.activate())
-            require('%s==%s' % (ei_cmd.egg_name, ei_cmd.egg_version))
-            func()
-        finally:
-            sys.path[:] = old_path
-            sys.modules.clear()
-            sys.modules.update(old_modules)
-            working_set.__init__()
-
+        pass
 
     def run(self):
-        if self.distribution.install_requires:
-            self.distribution.fetch_build_eggs(self.distribution.install_requires)
-        if self.distribution.tests_require:
-            self.distribution.fetch_build_eggs(self.distribution.tests_require)
-
-        if self.test_suite:
-            cmd = ' '.join(self.test_args)
-            if self.dry_run:
-                self.announce('skipping "unittest %s" (dry run)' % cmd)
-            else:
-                self.announce('running "unittest %s"' % cmd)
-                self.with_project_on_sys_path(self.run_tests)
-
-
-    def run_tests(self):
-        import unittest
-        loader_ep = EntryPoint.parse("x="+self.test_loader)
-        loader_class = loader_ep.load(require=False)
-        unittest.main(
-            None, None, [unittest.__file__]+self.test_args,
-            testLoader = loader_class()
-        )
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+        raise RuntimeError("Support for the test command was removed in Setuptools 72")
diff --git a/setuptools/command/upload.py b/setuptools/command/upload.py
deleted file mode 100755
index 1f49745e3e..0000000000
--- a/setuptools/command/upload.py
+++ /dev/null
@@ -1,183 +0,0 @@
-"""distutils.command.upload
-
-Implements the Distutils 'upload' subcommand (upload package to PyPI)."""
-
-from distutils.errors import *
-from distutils.core import Command
-from distutils.spawn import spawn
-from distutils import log
-try:
-    from hashlib import md5
-except ImportError:
-    from md5 import md5
-import os
-import socket
-import platform
-import ConfigParser
-import httplib
-import base64
-import urlparse
-import cStringIO as StringIO
-
-class upload(Command):
-
-    description = "upload binary package to PyPI"
-
-    DEFAULT_REPOSITORY = 'http://pypi.python.org/pypi'
-
-    user_options = [
-        ('repository=', 'r',
-         "url of repository [default: %s]" % DEFAULT_REPOSITORY),
-        ('show-response', None,
-         'display full response text from server'),
-        ('sign', 's',
-         'sign files to upload using gpg'),
-        ('identity=', 'i', 'GPG identity used to sign files'),
-        ]
-    boolean_options = ['show-response', 'sign']
-
-    def initialize_options(self):
-        self.username = ''
-        self.password = ''
-        self.repository = ''
-        self.show_response = 0
-        self.sign = False
-        self.identity = None
-
-    def finalize_options(self):
-        if self.identity and not self.sign:
-            raise DistutilsOptionError(
-                "Must use --sign for --identity to have meaning"
-            )
-        if os.environ.has_key('HOME'):
-            rc = os.path.join(os.environ['HOME'], '.pypirc')
-            if os.path.exists(rc):
-                self.announce('Using PyPI login from %s' % rc)
-                config = ConfigParser.ConfigParser({
-                        'username':'',
-                        'password':'',
-                        'repository':''})
-                config.read(rc)
-                if not self.repository:
-                    self.repository = config.get('server-login', 'repository')
-                if not self.username:
-                    self.username = config.get('server-login', 'username')
-                if not self.password:
-                    self.password = config.get('server-login', 'password')
-        if not self.repository:
-            self.repository = self.DEFAULT_REPOSITORY
-
-    def run(self):
-        if not self.distribution.dist_files:
-            raise DistutilsOptionError("No dist file created in earlier command")
-        for command, pyversion, filename in self.distribution.dist_files:
-            self.upload_file(command, pyversion, filename)
-
-    def upload_file(self, command, pyversion, filename):
-        # Sign if requested
-        if self.sign:
-            gpg_args = ["gpg", "--detach-sign", "-a", filename]
-            if self.identity:
-                gpg_args[2:2] = ["--local-user", self.identity]
-            spawn(gpg_args,
-                  dry_run=self.dry_run)
-
-        # Fill in the data
-        f = open(filename,'rb')
-        content = f.read()
-        f.close()
-        basename = os.path.basename(filename)
-        comment = ''
-        if command=='bdist_egg' and self.distribution.has_ext_modules():
-            comment = "built on %s" % platform.platform(terse=1)
-        data = {
-            ':action':'file_upload',
-            'protcol_version':'1',
-            'name':self.distribution.get_name(),
-            'version':self.distribution.get_version(),
-            'content':(basename,content),
-            'filetype':command,
-            'pyversion':pyversion,
-            'md5_digest':md5(content).hexdigest(),
-            }
-        if command == 'bdist_rpm':
-            dist, version, id = platform.dist()
-            if dist:
-                comment = 'built for %s %s' % (dist, version)
-        elif command == 'bdist_dumb':
-            comment = 'built for %s' % platform.platform(terse=1)
-        data['comment'] = comment
-
-        if self.sign:
-            data['gpg_signature'] = (os.path.basename(filename) + ".asc",
-                                     open(filename+".asc").read())
-
-        # set up the authentication
-        auth = "Basic " + base64.encodestring(self.username + ":" + self.password).strip()
-
-        # Build up the MIME payload for the POST data
-        boundary = '--------------GHSKFJDLGDS7543FJKLFHRE75642756743254'
-        sep_boundary = '\n--' + boundary
-        end_boundary = sep_boundary + '--'
-        body = StringIO.StringIO()
-        for key, value in data.items():
-            # handle multiple entries for the same name
-            if type(value) != type([]):
-                value = [value]
-            for value in value:
-                if type(value) is tuple:
-                    fn = ';filename="%s"' % value[0]
-                    value = value[1]
-                else:
-                    fn = ""
-                value = str(value)
-                body.write(sep_boundary)
-                body.write('\nContent-Disposition: form-data; name="%s"'%key)
-                body.write(fn)
-                body.write("\n\n")
-                body.write(value)
-                if value and value[-1] == '\r':
-                    body.write('\n')  # write an extra newline (lurve Macs)
-        body.write(end_boundary)
-        body.write("\n")
-        body = body.getvalue()
-
-        self.announce("Submitting %s to %s" % (filename, self.repository), log.INFO)
-
-        # build the Request
-        # We can't use urllib2 since we need to send the Basic
-        # auth right with the first request
-        schema, netloc, url, params, query, fragments = \
-            urlparse.urlparse(self.repository)
-        assert not params and not query and not fragments
-        if schema == 'http':
-            http = httplib.HTTPConnection(netloc)
-        elif schema == 'https':
-            http = httplib.HTTPSConnection(netloc)
-        else:
-            raise AssertionError, "unsupported schema "+schema
-
-        data = ''
-        loglevel = log.INFO
-        try:
-            http.connect()
-            http.putrequest("POST", url)
-            http.putheader('Content-type',
-                           'multipart/form-data; boundary=%s'%boundary)
-            http.putheader('Content-length', str(len(body)))
-            http.putheader('Authorization', auth)
-            http.endheaders()
-            http.send(body)
-        except socket.error, e:
-            self.announce(str(e), log.ERROR)
-            return
-
-        r = http.getresponse()
-        if r.status == 200:
-            self.announce('Server response (%s): %s' % (r.status, r.reason),
-                          log.INFO)
-        else:
-            self.announce('Upload failed (%s): %s' % (r.status, r.reason),
-                          log.ERROR)
-        if self.show_response:
-            print '-'*75, r.read(), '-'*75
diff --git a/setuptools/compat/__init__.py b/setuptools/compat/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/setuptools/compat/py310.py b/setuptools/compat/py310.py
new file mode 100644
index 0000000000..b3912f8e02
--- /dev/null
+++ b/setuptools/compat/py310.py
@@ -0,0 +1,9 @@
+import sys
+
+__all__ = ['tomllib']
+
+
+if sys.version_info >= (3, 11):
+    import tomllib
+else:  # pragma: no cover
+    import tomli as tomllib
diff --git a/setuptools/compat/py311.py b/setuptools/compat/py311.py
new file mode 100644
index 0000000000..52b58af32a
--- /dev/null
+++ b/setuptools/compat/py311.py
@@ -0,0 +1,27 @@
+from __future__ import annotations
+
+import shutil
+import sys
+from typing import TYPE_CHECKING, Any, Callable
+
+if TYPE_CHECKING:
+    from _typeshed import ExcInfo, StrOrBytesPath
+    from typing_extensions import TypeAlias
+
+# Same as shutil._OnExcCallback from typeshed
+_OnExcCallback: TypeAlias = Callable[[Callable[..., Any], str, BaseException], object]
+
+
+def shutil_rmtree(
+    path: StrOrBytesPath,
+    ignore_errors: bool = False,
+    onexc: _OnExcCallback | None = None,
+) -> None:
+    if sys.version_info >= (3, 12):
+        return shutil.rmtree(path, ignore_errors, onexc=onexc)
+
+    def _handler(fn: Callable[..., Any], path: str, excinfo: ExcInfo) -> None:
+        if onexc:
+            onexc(fn, path, excinfo[1])
+
+    return shutil.rmtree(path, ignore_errors, onerror=_handler)
diff --git a/setuptools/compat/py312.py b/setuptools/compat/py312.py
new file mode 100644
index 0000000000..b20c5f697a
--- /dev/null
+++ b/setuptools/compat/py312.py
@@ -0,0 +1,13 @@
+from __future__ import annotations
+
+import sys
+
+if sys.version_info >= (3, 12, 4):
+    # Python 3.13 should support `.pth` files encoded in UTF-8
+    # See discussion in https://github.com/python/cpython/issues/77102
+    PTH_ENCODING: str | None = "utf-8"
+else:
+    from .py39 import LOCALE_ENCODING
+
+    # PTH_ENCODING = "locale"
+    PTH_ENCODING = LOCALE_ENCODING
diff --git a/setuptools/compat/py39.py b/setuptools/compat/py39.py
new file mode 100644
index 0000000000..04a4abe5a9
--- /dev/null
+++ b/setuptools/compat/py39.py
@@ -0,0 +1,9 @@
+import sys
+
+# Explicitly use the ``"locale"`` encoding in versions that support it,
+# otherwise just rely on the implicit handling of ``encoding=None``.
+# Since all platforms that support ``EncodingWarning`` also support
+# ``encoding="locale"``, this can be used to suppress the warning.
+# However, please try to use UTF-8 when possible
+# (.pth files are the notorious exception: python/cpython#77102, pypa/setuptools#3937).
+LOCALE_ENCODING = "locale" if sys.version_info >= (3, 10) else None
diff --git a/setuptools/config/NOTICE b/setuptools/config/NOTICE
new file mode 100644
index 0000000000..01864511b0
--- /dev/null
+++ b/setuptools/config/NOTICE
@@ -0,0 +1,10 @@
+The following files include code from opensource projects
+(either as direct copies or modified versions):
+
+- `setuptools.schema.json`, `distutils.schema.json`:
+    - project: `validate-pyproject` - licensed under MPL-2.0
+      (https://github.com/abravalheri/validate-pyproject):
+
+      This Source Code Form is subject to the terms of the Mozilla Public
+      License, v. 2.0. If a copy of the MPL was not distributed with this file,
+      You can obtain one at https://mozilla.org/MPL/2.0/.
diff --git a/setuptools/config/__init__.py b/setuptools/config/__init__.py
new file mode 100644
index 0000000000..fcc7d008d6
--- /dev/null
+++ b/setuptools/config/__init__.py
@@ -0,0 +1,43 @@
+"""For backward compatibility, expose main functions from
+``setuptools.config.setupcfg``
+"""
+
+from functools import wraps
+from typing import Callable, TypeVar, cast
+
+from ..warnings import SetuptoolsDeprecationWarning
+from . import setupcfg
+
+Fn = TypeVar("Fn", bound=Callable)
+
+__all__ = ('parse_configuration', 'read_configuration')
+
+
+def _deprecation_notice(fn: Fn) -> Fn:
+    @wraps(fn)
+    def _wrapper(*args, **kwargs):
+        SetuptoolsDeprecationWarning.emit(
+            "Deprecated API usage.",
+            f"""
+            As setuptools moves its configuration towards `pyproject.toml`,
+            `{__name__}.{fn.__name__}` became deprecated.
+
+            For the time being, you can use the `{setupcfg.__name__}` module
+            to access a backward compatible API, but this module is provisional
+            and might be removed in the future.
+
+            To read project metadata, consider using
+            ``build.util.project_wheel_metadata`` (https://pypi.org/project/build/).
+            For simple scenarios, you can also try parsing the file directly
+            with the help of ``configparser``.
+            """,
+            # due_date not defined yet, because the community still heavily relies on it
+            # Warning introduced in 24 Mar 2022
+        )
+        return fn(*args, **kwargs)
+
+    return cast(Fn, _wrapper)
+
+
+read_configuration = _deprecation_notice(setupcfg.read_configuration)
+parse_configuration = _deprecation_notice(setupcfg.parse_configuration)
diff --git a/setuptools/config/_apply_pyprojecttoml.py b/setuptools/config/_apply_pyprojecttoml.py
new file mode 100644
index 0000000000..9088bc1383
--- /dev/null
+++ b/setuptools/config/_apply_pyprojecttoml.py
@@ -0,0 +1,526 @@
+"""Translation layer between pyproject config and setuptools distribution and
+metadata objects.
+
+The distribution and metadata objects are modeled after (an old version of)
+core metadata, therefore configs in the format specified for ``pyproject.toml``
+need to be processed before being applied.
+
+**PRIVATE MODULE**: API reserved for setuptools internal usage only.
+"""
+
+from __future__ import annotations
+
+import logging
+import os
+from collections.abc import Mapping
+from email.headerregistry import Address
+from functools import partial, reduce
+from inspect import cleandoc
+from itertools import chain
+from types import MappingProxyType
+from typing import TYPE_CHECKING, Any, Callable, TypeVar, Union
+
+from .. import _static
+from .._path import StrPath
+from ..errors import InvalidConfigError, RemovedConfigError
+from ..extension import Extension
+from ..warnings import SetuptoolsDeprecationWarning, SetuptoolsWarning
+
+if TYPE_CHECKING:
+    from typing_extensions import TypeAlias
+
+    from setuptools._importlib import metadata
+    from setuptools.dist import Distribution
+
+    from distutils.dist import _OptionsList  # Comes from typeshed
+
+
+EMPTY: Mapping = MappingProxyType({})  # Immutable dict-like
+_ProjectReadmeValue: TypeAlias = Union[str, dict[str, str]]
+_Correspondence: TypeAlias = Callable[["Distribution", Any, Union[StrPath, None]], None]
+_T = TypeVar("_T")
+
+_logger = logging.getLogger(__name__)
+
+
+def apply(dist: Distribution, config: dict, filename: StrPath) -> Distribution:
+    """Apply configuration dict read with :func:`read_configuration`"""
+
+    if not config:
+        return dist  # short-circuit unrelated pyproject.toml file
+
+    root_dir = os.path.dirname(filename) or "."
+
+    _apply_project_table(dist, config, root_dir)
+    _apply_tool_table(dist, config, filename)
+
+    current_directory = os.getcwd()
+    os.chdir(root_dir)
+    try:
+        dist._finalize_requires()
+        dist._finalize_license_expression()
+        dist._finalize_license_files()
+    finally:
+        os.chdir(current_directory)
+
+    return dist
+
+
+def _apply_project_table(dist: Distribution, config: dict, root_dir: StrPath):
+    orig_config = config.get("project", {})
+    if not orig_config:
+        return  # short-circuit
+
+    project_table = {k: _static.attempt_conversion(v) for k, v in orig_config.items()}
+    _handle_missing_dynamic(dist, project_table)
+    _unify_entry_points(project_table)
+
+    for field, value in project_table.items():
+        norm_key = json_compatible_key(field)
+        corresp = PYPROJECT_CORRESPONDENCE.get(norm_key, norm_key)
+        if callable(corresp):
+            corresp(dist, value, root_dir)
+        else:
+            _set_config(dist, corresp, value)
+
+
+def _apply_tool_table(dist: Distribution, config: dict, filename: StrPath):
+    tool_table = config.get("tool", {}).get("setuptools", {})
+    if not tool_table:
+        return  # short-circuit
+
+    if "license-files" in tool_table:
+        if "license-files" in config.get("project", {}):
+            # https://github.com/pypa/setuptools/pull/4837#discussion_r2004983349
+            raise InvalidConfigError(
+                "'project.license-files' is defined already. "
+                "Remove 'tool.setuptools.license-files'."
+            )
+
+        pypa_guides = "guides/writing-pyproject-toml/#license-files"
+        SetuptoolsDeprecationWarning.emit(
+            "'tool.setuptools.license-files' is deprecated in favor of "
+            "'project.license-files' (available on setuptools>=77.0.0).",
+            see_url=f"https://packaging.python.org/en/latest/{pypa_guides}",
+            due_date=(2026, 2, 18),  # Warning introduced on 2025-02-18
+        )
+
+    for field, value in tool_table.items():
+        norm_key = json_compatible_key(field)
+
+        if norm_key in TOOL_TABLE_REMOVALS:
+            suggestion = cleandoc(TOOL_TABLE_REMOVALS[norm_key])
+            msg = f"""
+            The parameter `tool.setuptools.{field}` was long deprecated
+            and has been removed from `pyproject.toml`.
+            """
+            raise RemovedConfigError("\n".join([cleandoc(msg), suggestion]))
+
+        norm_key = TOOL_TABLE_RENAMES.get(norm_key, norm_key)
+        corresp = TOOL_TABLE_CORRESPONDENCE.get(norm_key, norm_key)
+        if callable(corresp):
+            corresp(dist, value)
+        else:
+            _set_config(dist, corresp, value)
+
+    _copy_command_options(config, dist, filename)
+
+
+def _handle_missing_dynamic(dist: Distribution, project_table: dict):
+    """Be temporarily forgiving with ``dynamic`` fields not listed in ``dynamic``"""
+    dynamic = set(project_table.get("dynamic", []))
+    for field, getter in _PREVIOUSLY_DEFINED.items():
+        if not (field in project_table or field in dynamic):
+            value = getter(dist)
+            if value:
+                _MissingDynamic.emit(field=field, value=value)
+                project_table[field] = _RESET_PREVIOUSLY_DEFINED.get(field)
+
+
+def json_compatible_key(key: str) -> str:
+    """As defined in :pep:`566#json-compatible-metadata`"""
+    return key.lower().replace("-", "_")
+
+
+def _set_config(dist: Distribution, field: str, value: Any):
+    val = _PREPROCESS.get(field, _noop)(dist, value)
+    setter = getattr(dist.metadata, f"set_{field}", None)
+    if setter:
+        setter(val)
+    elif hasattr(dist.metadata, field) or field in SETUPTOOLS_PATCHES:
+        setattr(dist.metadata, field, val)
+    else:
+        setattr(dist, field, val)
+
+
+_CONTENT_TYPES = {
+    ".md": "text/markdown",
+    ".rst": "text/x-rst",
+    ".txt": "text/plain",
+}
+
+
+def _guess_content_type(file: str) -> str | None:
+    _, ext = os.path.splitext(file.lower())
+    if not ext:
+        return None
+
+    if ext in _CONTENT_TYPES:
+        return _static.Str(_CONTENT_TYPES[ext])
+
+    valid = ", ".join(f"{k} ({v})" for k, v in _CONTENT_TYPES.items())
+    msg = f"only the following file extensions are recognized: {valid}."
+    raise ValueError(f"Undefined content type for {file}, {msg}")
+
+
+def _long_description(
+    dist: Distribution, val: _ProjectReadmeValue, root_dir: StrPath | None
+):
+    from setuptools.config import expand
+
+    file: str | tuple[()]
+    if isinstance(val, str):
+        file = val
+        text = expand.read_files(file, root_dir)
+        ctype = _guess_content_type(file)
+    else:
+        file = val.get("file") or ()
+        text = val.get("text") or expand.read_files(file, root_dir)
+        ctype = val["content-type"]
+
+    # XXX: Is it completely safe to assume static?
+    _set_config(dist, "long_description", _static.Str(text))
+
+    if ctype:
+        _set_config(dist, "long_description_content_type", _static.Str(ctype))
+
+    if file:
+        dist._referenced_files.add(file)
+
+
+def _license(dist: Distribution, val: str | dict, root_dir: StrPath | None):
+    from setuptools.config import expand
+
+    if isinstance(val, str):
+        if getattr(dist.metadata, "license", None):
+            SetuptoolsWarning.emit("`license` overwritten by `pyproject.toml`")
+            dist.metadata.license = None
+        _set_config(dist, "license_expression", _static.Str(val))
+    else:
+        pypa_guides = "guides/writing-pyproject-toml/#license"
+        SetuptoolsDeprecationWarning.emit(
+            "`project.license` as a TOML table is deprecated",
+            "Please use a simple string containing a SPDX expression for "
+            "`project.license`. You can also use `project.license-files`. "
+            "(Both options available on setuptools>=77.0.0).",
+            see_url=f"https://packaging.python.org/en/latest/{pypa_guides}",
+            due_date=(2026, 2, 18),  # Introduced on 2025-02-18
+        )
+        if "file" in val:
+            # XXX: Is it completely safe to assume static?
+            value = expand.read_files([val["file"]], root_dir)
+            _set_config(dist, "license", _static.Str(value))
+            dist._referenced_files.add(val["file"])
+        else:
+            _set_config(dist, "license", _static.Str(val["text"]))
+
+
+def _people(dist: Distribution, val: list[dict], _root_dir: StrPath | None, kind: str):
+    field = []
+    email_field = []
+    for person in val:
+        if "name" not in person:
+            email_field.append(person["email"])
+        elif "email" not in person:
+            field.append(person["name"])
+        else:
+            addr = Address(display_name=person["name"], addr_spec=person["email"])
+            email_field.append(str(addr))
+
+    if field:
+        _set_config(dist, kind, _static.Str(", ".join(field)))
+    if email_field:
+        _set_config(dist, f"{kind}_email", _static.Str(", ".join(email_field)))
+
+
+def _project_urls(dist: Distribution, val: dict, _root_dir: StrPath | None):
+    _set_config(dist, "project_urls", val)
+
+
+def _python_requires(dist: Distribution, val: str, _root_dir: StrPath | None):
+    _set_config(dist, "python_requires", _static.SpecifierSet(val))
+
+
+def _dependencies(dist: Distribution, val: list, _root_dir: StrPath | None):
+    if getattr(dist, "install_requires", []):
+        msg = "`install_requires` overwritten in `pyproject.toml` (dependencies)"
+        SetuptoolsWarning.emit(msg)
+    dist.install_requires = val
+
+
+def _optional_dependencies(dist: Distribution, val: dict, _root_dir: StrPath | None):
+    if getattr(dist, "extras_require", None):
+        msg = "`extras_require` overwritten in `pyproject.toml` (optional-dependencies)"
+        SetuptoolsWarning.emit(msg)
+    dist.extras_require = val
+
+
+def _ext_modules(dist: Distribution, val: list[dict]) -> list[Extension]:
+    existing = dist.ext_modules or []
+    args = ({k.replace("-", "_"): v for k, v in x.items()} for x in val)
+    new = [Extension(**kw) for kw in args]
+    return [*existing, *new]
+
+
+def _noop(_dist: Distribution, val: _T) -> _T:
+    return val
+
+
+def _identity(val: _T) -> _T:
+    return val
+
+
+def _unify_entry_points(project_table: dict):
+    project = project_table
+    given = project.pop("entry-points", project.pop("entry_points", {}))
+    entry_points = dict(given)  # Avoid problems with static
+    renaming = {"scripts": "console_scripts", "gui_scripts": "gui_scripts"}
+    for key, value in list(project.items()):  # eager to allow modifications
+        norm_key = json_compatible_key(key)
+        if norm_key in renaming:
+            # Don't skip even if value is empty (reason: reset missing `dynamic`)
+            entry_points[renaming[norm_key]] = project.pop(key)
+
+    if entry_points:
+        project["entry-points"] = {
+            name: [f"{k} = {v}" for k, v in group.items()]
+            for name, group in entry_points.items()
+            if group  # now we can skip empty groups
+        }
+        # Sometimes this will set `project["entry-points"] = {}`, and that is
+        # intentional (for resetting configurations that are missing `dynamic`).
+
+
+def _copy_command_options(pyproject: dict, dist: Distribution, filename: StrPath):
+    tool_table = pyproject.get("tool", {})
+    cmdclass = tool_table.get("setuptools", {}).get("cmdclass", {})
+    valid_options = _valid_command_options(cmdclass)
+
+    cmd_opts = dist.command_options
+    for cmd, config in pyproject.get("tool", {}).get("distutils", {}).items():
+        cmd = json_compatible_key(cmd)
+        valid = valid_options.get(cmd, set())
+        cmd_opts.setdefault(cmd, {})
+        for key, value in config.items():
+            key = json_compatible_key(key)
+            cmd_opts[cmd][key] = (str(filename), value)
+            if key not in valid:
+                # To avoid removing options that are specified dynamically we
+                # just log a warn...
+                _logger.warning(f"Command option {cmd}.{key} is not defined")
+
+
+def _valid_command_options(cmdclass: Mapping = EMPTY) -> dict[str, set[str]]:
+    from setuptools.dist import Distribution
+
+    from .._importlib import metadata
+
+    valid_options = {"global": _normalise_cmd_options(Distribution.global_options)}
+
+    unloaded_entry_points = metadata.entry_points(group='distutils.commands')
+    loaded_entry_points = (_load_ep(ep) for ep in unloaded_entry_points)
+    entry_points = (ep for ep in loaded_entry_points if ep)
+    for cmd, cmd_class in chain(entry_points, cmdclass.items()):
+        opts = valid_options.get(cmd, set())
+        opts = opts | _normalise_cmd_options(getattr(cmd_class, "user_options", []))
+        valid_options[cmd] = opts
+
+    return valid_options
+
+
+def _load_ep(ep: metadata.EntryPoint) -> tuple[str, type] | None:
+    if ep.value.startswith("wheel.bdist_wheel"):
+        # Ignore deprecated entrypoint from wheel and avoid warning pypa/wheel#631
+        # TODO: remove check when `bdist_wheel` has been fully removed from pypa/wheel
+        return None
+
+    # Ignore all the errors
+    try:
+        return (ep.name, ep.load())
+    except Exception as ex:
+        msg = f"{ex.__class__.__name__} while trying to load entry-point {ep.name}"
+        _logger.warning(f"{msg}: {ex}")
+        return None
+
+
+def _normalise_cmd_option_key(name: str) -> str:
+    return json_compatible_key(name).strip("_=")
+
+
+def _normalise_cmd_options(desc: _OptionsList) -> set[str]:
+    return {_normalise_cmd_option_key(fancy_option[0]) for fancy_option in desc}
+
+
+def _get_previous_entrypoints(dist: Distribution) -> dict[str, list]:
+    ignore = ("console_scripts", "gui_scripts")
+    value = getattr(dist, "entry_points", None) or {}
+    return {k: v for k, v in value.items() if k not in ignore}
+
+
+def _get_previous_scripts(dist: Distribution) -> list | None:
+    value = getattr(dist, "entry_points", None) or {}
+    return value.get("console_scripts")
+
+
+def _get_previous_gui_scripts(dist: Distribution) -> list | None:
+    value = getattr(dist, "entry_points", None) or {}
+    return value.get("gui_scripts")
+
+
+def _set_static_list_metadata(attr: str, dist: Distribution, val: list) -> None:
+    """Apply distutils metadata validation but preserve "static" behaviour"""
+    meta = dist.metadata
+    setter, getter = getattr(meta, f"set_{attr}"), getattr(meta, f"get_{attr}")
+    setter(val)
+    setattr(meta, attr, _static.List(getter()))
+
+
+def _attrgetter(attr):
+    """
+    Similar to ``operator.attrgetter`` but returns None if ``attr`` is not found
+    >>> from types import SimpleNamespace
+    >>> obj = SimpleNamespace(a=42, b=SimpleNamespace(c=13))
+    >>> _attrgetter("a")(obj)
+    42
+    >>> _attrgetter("b.c")(obj)
+    13
+    >>> _attrgetter("d")(obj) is None
+    True
+    """
+    return partial(reduce, lambda acc, x: getattr(acc, x, None), attr.split("."))
+
+
+def _some_attrgetter(*items):
+    """
+    Return the first "truth-y" attribute or None
+    >>> from types import SimpleNamespace
+    >>> obj = SimpleNamespace(a=42, b=SimpleNamespace(c=13))
+    >>> _some_attrgetter("d", "a", "b.c")(obj)
+    42
+    >>> _some_attrgetter("d", "e", "b.c", "a")(obj)
+    13
+    >>> _some_attrgetter("d", "e", "f")(obj) is None
+    True
+    """
+
+    def _acessor(obj):
+        values = (_attrgetter(i)(obj) for i in items)
+        return next((i for i in values if i is not None), None)
+
+    return _acessor
+
+
+PYPROJECT_CORRESPONDENCE: dict[str, _Correspondence] = {
+    "readme": _long_description,
+    "license": _license,
+    "authors": partial(_people, kind="author"),
+    "maintainers": partial(_people, kind="maintainer"),
+    "urls": _project_urls,
+    "dependencies": _dependencies,
+    "optional_dependencies": _optional_dependencies,
+    "requires_python": _python_requires,
+}
+
+TOOL_TABLE_RENAMES = {"script_files": "scripts"}
+TOOL_TABLE_REMOVALS = {
+    "namespace_packages": """
+        Please migrate to implicit native namespaces instead.
+        See https://packaging.python.org/en/latest/guides/packaging-namespace-packages/.
+        """,
+}
+TOOL_TABLE_CORRESPONDENCE = {
+    # Fields with corresponding core metadata need to be marked as static:
+    "obsoletes": partial(_set_static_list_metadata, "obsoletes"),
+    "provides": partial(_set_static_list_metadata, "provides"),
+    "platforms": partial(_set_static_list_metadata, "platforms"),
+}
+
+SETUPTOOLS_PATCHES = {
+    "long_description_content_type",
+    "project_urls",
+    "provides_extras",
+    "license_file",
+    "license_files",
+    "license_expression",
+}
+
+_PREPROCESS = {
+    "ext_modules": _ext_modules,
+}
+
+_PREVIOUSLY_DEFINED = {
+    "name": _attrgetter("metadata.name"),
+    "version": _attrgetter("metadata.version"),
+    "description": _attrgetter("metadata.description"),
+    "readme": _attrgetter("metadata.long_description"),
+    "requires-python": _some_attrgetter("python_requires", "metadata.python_requires"),
+    "license": _some_attrgetter("metadata.license_expression", "metadata.license"),
+    # XXX: `license-file` is currently not considered in the context of `dynamic`.
+    #      See TestPresetField.test_license_files_exempt_from_dynamic
+    "authors": _some_attrgetter("metadata.author", "metadata.author_email"),
+    "maintainers": _some_attrgetter("metadata.maintainer", "metadata.maintainer_email"),
+    "keywords": _attrgetter("metadata.keywords"),
+    "classifiers": _attrgetter("metadata.classifiers"),
+    "urls": _attrgetter("metadata.project_urls"),
+    "entry-points": _get_previous_entrypoints,
+    "scripts": _get_previous_scripts,
+    "gui-scripts": _get_previous_gui_scripts,
+    "dependencies": _attrgetter("install_requires"),
+    "optional-dependencies": _attrgetter("extras_require"),
+}
+
+
+_RESET_PREVIOUSLY_DEFINED: dict = {
+    # Fix improper setting: given in `setup.py`, but not listed in `dynamic`
+    # Use "immutable" data structures to avoid in-place modification.
+    # dict: pyproject name => value to which reset
+    "license": "",
+    # XXX: `license-file` is currently not considered in the context of `dynamic`.
+    #      See TestPresetField.test_license_files_exempt_from_dynamic
+    "authors": _static.EMPTY_LIST,
+    "maintainers": _static.EMPTY_LIST,
+    "keywords": _static.EMPTY_LIST,
+    "classifiers": _static.EMPTY_LIST,
+    "urls": _static.EMPTY_DICT,
+    "entry-points": _static.EMPTY_DICT,
+    "scripts": _static.EMPTY_DICT,
+    "gui-scripts": _static.EMPTY_DICT,
+    "dependencies": _static.EMPTY_LIST,
+    "optional-dependencies": _static.EMPTY_DICT,
+}
+
+
+class _MissingDynamic(SetuptoolsWarning):
+    _SUMMARY = "`{field}` defined outside of `pyproject.toml` is ignored."
+
+    _DETAILS = """
+    The following seems to be defined outside of `pyproject.toml`:
+
+    `{field} = {value!r}`
+
+    According to the spec (see the link below), however, setuptools CANNOT
+    consider this value unless `{field}` is listed as `dynamic`.
+
+    https://packaging.python.org/en/latest/specifications/pyproject-toml/#declaring-project-metadata-the-project-table
+
+    To prevent this problem, you can list `{field}` under `dynamic` or alternatively
+    remove the `[project]` table from your file and rely entirely on other means of
+    configuration.
+    """
+    # TODO: Consider removing this check in the future?
+    #       There is a trade-off here between improving "debug-ability" and the cost
+    #       of running/testing/maintaining these unnecessary checks...
+
+    @classmethod
+    def details(cls, field: str, value: Any) -> str:
+        return cls._DETAILS.format(field=field, value=value)
diff --git a/setuptools/config/_validate_pyproject/NOTICE b/setuptools/config/_validate_pyproject/NOTICE
new file mode 100644
index 0000000000..ac5464d88c
--- /dev/null
+++ b/setuptools/config/_validate_pyproject/NOTICE
@@ -0,0 +1,438 @@
+The code contained in this directory was automatically generated using the
+following command:
+
+    python -m validate_pyproject.pre_compile --output-dir=setuptools/config/_validate_pyproject --enable-plugins setuptools distutils --very-verbose -t setuptools=setuptools/config/setuptools.schema.json -t distutils=setuptools/config/distutils.schema.json
+
+Please avoid changing it manually.
+
+
+You can report issues or suggest changes directly to `validate-pyproject`
+(or to the relevant plugin repository)
+
+- https://github.com/abravalheri/validate-pyproject/issues
+
+
+***
+
+The following files include code from opensource projects
+(either as direct copies or modified versions):
+
+- `fastjsonschema_exceptions.py`:
+    - project: `fastjsonschema` - licensed under BSD-3-Clause
+      (https://github.com/horejsek/python-fastjsonschema)
+- `extra_validations.py` and `format.py`, `error_reporting.py`:
+    - project: `validate-pyproject` - licensed under MPL-2.0
+      (https://github.com/abravalheri/validate-pyproject)
+
+
+Additionally the following files are automatically generated by tools provided
+by the same projects:
+
+- `__init__.py`
+- `fastjsonschema_validations.py`
+
+The relevant copyright notes and licenses are included below.
+
+
+***
+
+`fastjsonschema`
+================
+
+Copyright (c) 2018, Michal Horejsek
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+  Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
+
+  Redistributions in binary form must reproduce the above copyright notice, this
+  list of conditions and the following disclaimer in the documentation and/or
+  other materials provided with the distribution.
+
+  Neither the name of the {organization} nor the names of its
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+
+***
+
+`validate-pyproject`
+====================
+
+Mozilla Public License, version 2.0
+
+1. Definitions
+
+1.1. "Contributor"
+
+     means each individual or legal entity that creates, contributes to the
+     creation of, or owns Covered Software.
+
+1.2. "Contributor Version"
+
+     means the combination of the Contributions of others (if any) used by a
+     Contributor and that particular Contributor's Contribution.
+
+1.3. "Contribution"
+
+     means Covered Software of a particular Contributor.
+
+1.4. "Covered Software"
+
+     means Source Code Form to which the initial Contributor has attached the
+     notice in Exhibit A, the Executable Form of such Source Code Form, and
+     Modifications of such Source Code Form, in each case including portions
+     thereof.
+
+1.5. "Incompatible With Secondary Licenses"
+     means
+
+     a. that the initial Contributor has attached the notice described in
+        Exhibit B to the Covered Software; or
+
+     b. that the Covered Software was made available under the terms of
+        version 1.1 or earlier of the License, but not also under the terms of
+        a Secondary License.
+
+1.6. "Executable Form"
+
+     means any form of the work other than Source Code Form.
+
+1.7. "Larger Work"
+
+     means a work that combines Covered Software with other material, in a
+     separate file or files, that is not Covered Software.
+
+1.8. "License"
+
+     means this document.
+
+1.9. "Licensable"
+
+     means having the right to grant, to the maximum extent possible, whether
+     at the time of the initial grant or subsequently, any and all of the
+     rights conveyed by this License.
+
+1.10. "Modifications"
+
+     means any of the following:
+
+     a. any file in Source Code Form that results from an addition to,
+        deletion from, or modification of the contents of Covered Software; or
+
+     b. any new file in Source Code Form that contains any Covered Software.
+
+1.11. "Patent Claims" of a Contributor
+
+      means any patent claim(s), including without limitation, method,
+      process, and apparatus claims, in any patent Licensable by such
+      Contributor that would be infringed, but for the grant of the License,
+      by the making, using, selling, offering for sale, having made, import,
+      or transfer of either its Contributions or its Contributor Version.
+
+1.12. "Secondary License"
+
+      means either the GNU General Public License, Version 2.0, the GNU Lesser
+      General Public License, Version 2.1, the GNU Affero General Public
+      License, Version 3.0, or any later versions of those licenses.
+
+1.13. "Source Code Form"
+
+      means the form of the work preferred for making modifications.
+
+1.14. "You" (or "Your")
+
+      means an individual or a legal entity exercising rights under this
+      License. For legal entities, "You" includes any entity that controls, is
+      controlled by, or is under common control with You. For purposes of this
+      definition, "control" means (a) the power, direct or indirect, to cause
+      the direction or management of such entity, whether by contract or
+      otherwise, or (b) ownership of more than fifty percent (50%) of the
+      outstanding shares or beneficial ownership of such entity.
+
+
+2. License Grants and Conditions
+
+2.1. Grants
+
+     Each Contributor hereby grants You a world-wide, royalty-free,
+     non-exclusive license:
+
+     a. under intellectual property rights (other than patent or trademark)
+        Licensable by such Contributor to use, reproduce, make available,
+        modify, display, perform, distribute, and otherwise exploit its
+        Contributions, either on an unmodified basis, with Modifications, or
+        as part of a Larger Work; and
+
+     b. under Patent Claims of such Contributor to make, use, sell, offer for
+        sale, have made, import, and otherwise transfer either its
+        Contributions or its Contributor Version.
+
+2.2. Effective Date
+
+     The licenses granted in Section 2.1 with respect to any Contribution
+     become effective for each Contribution on the date the Contributor first
+     distributes such Contribution.
+
+2.3. Limitations on Grant Scope
+
+     The licenses granted in this Section 2 are the only rights granted under
+     this License. No additional rights or licenses will be implied from the
+     distribution or licensing of Covered Software under this License.
+     Notwithstanding Section 2.1(b) above, no patent license is granted by a
+     Contributor:
+
+     a. for any code that a Contributor has removed from Covered Software; or
+
+     b. for infringements caused by: (i) Your and any other third party's
+        modifications of Covered Software, or (ii) the combination of its
+        Contributions with other software (except as part of its Contributor
+        Version); or
+
+     c. under Patent Claims infringed by Covered Software in the absence of
+        its Contributions.
+
+     This License does not grant any rights in the trademarks, service marks,
+     or logos of any Contributor (except as may be necessary to comply with
+     the notice requirements in Section 3.4).
+
+2.4. Subsequent Licenses
+
+     No Contributor makes additional grants as a result of Your choice to
+     distribute the Covered Software under a subsequent version of this
+     License (see Section 10.2) or under the terms of a Secondary License (if
+     permitted under the terms of Section 3.3).
+
+2.5. Representation
+
+     Each Contributor represents that the Contributor believes its
+     Contributions are its original creation(s) or it has sufficient rights to
+     grant the rights to its Contributions conveyed by this License.
+
+2.6. Fair Use
+
+     This License is not intended to limit any rights You have under
+     applicable copyright doctrines of fair use, fair dealing, or other
+     equivalents.
+
+2.7. Conditions
+
+     Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted in
+     Section 2.1.
+
+
+3. Responsibilities
+
+3.1. Distribution of Source Form
+
+     All distribution of Covered Software in Source Code Form, including any
+     Modifications that You create or to which You contribute, must be under
+     the terms of this License. You must inform recipients that the Source
+     Code Form of the Covered Software is governed by the terms of this
+     License, and how they can obtain a copy of this License. You may not
+     attempt to alter or restrict the recipients' rights in the Source Code
+     Form.
+
+3.2. Distribution of Executable Form
+
+     If You distribute Covered Software in Executable Form then:
+
+     a. such Covered Software must also be made available in Source Code Form,
+        as described in Section 3.1, and You must inform recipients of the
+        Executable Form how they can obtain a copy of such Source Code Form by
+        reasonable means in a timely manner, at a charge no more than the cost
+        of distribution to the recipient; and
+
+     b. You may distribute such Executable Form under the terms of this
+        License, or sublicense it under different terms, provided that the
+        license for the Executable Form does not attempt to limit or alter the
+        recipients' rights in the Source Code Form under this License.
+
+3.3. Distribution of a Larger Work
+
+     You may create and distribute a Larger Work under terms of Your choice,
+     provided that You also comply with the requirements of this License for
+     the Covered Software. If the Larger Work is a combination of Covered
+     Software with a work governed by one or more Secondary Licenses, and the
+     Covered Software is not Incompatible With Secondary Licenses, this
+     License permits You to additionally distribute such Covered Software
+     under the terms of such Secondary License(s), so that the recipient of
+     the Larger Work may, at their option, further distribute the Covered
+     Software under the terms of either this License or such Secondary
+     License(s).
+
+3.4. Notices
+
+     You may not remove or alter the substance of any license notices
+     (including copyright notices, patent notices, disclaimers of warranty, or
+     limitations of liability) contained within the Source Code Form of the
+     Covered Software, except that You may alter any license notices to the
+     extent required to remedy known factual inaccuracies.
+
+3.5. Application of Additional Terms
+
+     You may choose to offer, and to charge a fee for, warranty, support,
+     indemnity or liability obligations to one or more recipients of Covered
+     Software. However, You may do so only on Your own behalf, and not on
+     behalf of any Contributor. You must make it absolutely clear that any
+     such warranty, support, indemnity, or liability obligation is offered by
+     You alone, and You hereby agree to indemnify every Contributor for any
+     liability incurred by such Contributor as a result of warranty, support,
+     indemnity or liability terms You offer. You may include additional
+     disclaimers of warranty and limitations of liability specific to any
+     jurisdiction.
+
+4. Inability to Comply Due to Statute or Regulation
+
+   If it is impossible for You to comply with any of the terms of this License
+   with respect to some or all of the Covered Software due to statute,
+   judicial order, or regulation then You must: (a) comply with the terms of
+   this License to the maximum extent possible; and (b) describe the
+   limitations and the code they affect. Such description must be placed in a
+   text file included with all distributions of the Covered Software under
+   this License. Except to the extent prohibited by statute or regulation,
+   such description must be sufficiently detailed for a recipient of ordinary
+   skill to be able to understand it.
+
+5. Termination
+
+5.1. The rights granted under this License will terminate automatically if You
+     fail to comply with any of its terms. However, if You become compliant,
+     then the rights granted under this License from a particular Contributor
+     are reinstated (a) provisionally, unless and until such Contributor
+     explicitly and finally terminates Your grants, and (b) on an ongoing
+     basis, if such Contributor fails to notify You of the non-compliance by
+     some reasonable means prior to 60 days after You have come back into
+     compliance. Moreover, Your grants from a particular Contributor are
+     reinstated on an ongoing basis if such Contributor notifies You of the
+     non-compliance by some reasonable means, this is the first time You have
+     received notice of non-compliance with this License from such
+     Contributor, and You become compliant prior to 30 days after Your receipt
+     of the notice.
+
+5.2. If You initiate litigation against any entity by asserting a patent
+     infringement claim (excluding declaratory judgment actions,
+     counter-claims, and cross-claims) alleging that a Contributor Version
+     directly or indirectly infringes any patent, then the rights granted to
+     You by any and all Contributors for the Covered Software under Section
+     2.1 of this License shall terminate.
+
+5.3. In the event of termination under Sections 5.1 or 5.2 above, all end user
+     license agreements (excluding distributors and resellers) which have been
+     validly granted by You or Your distributors under this License prior to
+     termination shall survive termination.
+
+6. Disclaimer of Warranty
+
+   Covered Software is provided under this License on an "as is" basis,
+   without warranty of any kind, either expressed, implied, or statutory,
+   including, without limitation, warranties that the Covered Software is free
+   of defects, merchantable, fit for a particular purpose or non-infringing.
+   The entire risk as to the quality and performance of the Covered Software
+   is with You. Should any Covered Software prove defective in any respect,
+   You (not any Contributor) assume the cost of any necessary servicing,
+   repair, or correction. This disclaimer of warranty constitutes an essential
+   part of this License. No use of  any Covered Software is authorized under
+   this License except under this disclaimer.
+
+7. Limitation of Liability
+
+   Under no circumstances and under no legal theory, whether tort (including
+   negligence), contract, or otherwise, shall any Contributor, or anyone who
+   distributes Covered Software as permitted above, be liable to You for any
+   direct, indirect, special, incidental, or consequential damages of any
+   character including, without limitation, damages for lost profits, loss of
+   goodwill, work stoppage, computer failure or malfunction, or any and all
+   other commercial damages or losses, even if such party shall have been
+   informed of the possibility of such damages. This limitation of liability
+   shall not apply to liability for death or personal injury resulting from
+   such party's negligence to the extent applicable law prohibits such
+   limitation. Some jurisdictions do not allow the exclusion or limitation of
+   incidental or consequential damages, so this exclusion and limitation may
+   not apply to You.
+
+8. Litigation
+
+   Any litigation relating to this License may be brought only in the courts
+   of a jurisdiction where the defendant maintains its principal place of
+   business and such litigation shall be governed by laws of that
+   jurisdiction, without reference to its conflict-of-law provisions. Nothing
+   in this Section shall prevent a party's ability to bring cross-claims or
+   counter-claims.
+
+9. Miscellaneous
+
+   This License represents the complete agreement concerning the subject
+   matter hereof. If any provision of this License is held to be
+   unenforceable, such provision shall be reformed only to the extent
+   necessary to make it enforceable. Any law or regulation which provides that
+   the language of a contract shall be construed against the drafter shall not
+   be used to construe this License against a Contributor.
+
+
+10. Versions of the License
+
+10.1. New Versions
+
+      Mozilla Foundation is the license steward. Except as provided in Section
+      10.3, no one other than the license steward has the right to modify or
+      publish new versions of this License. Each version will be given a
+      distinguishing version number.
+
+10.2. Effect of New Versions
+
+      You may distribute the Covered Software under the terms of the version
+      of the License under which You originally received the Covered Software,
+      or under the terms of any subsequent version published by the license
+      steward.
+
+10.3. Modified Versions
+
+      If you create software not governed by this License, and you want to
+      create a new license for such software, you may create and use a
+      modified version of this License if you rename the license and remove
+      any references to the name of the license steward (except to note that
+      such modified license differs from this License).
+
+10.4. Distributing Source Code Form that is Incompatible With Secondary
+      Licenses If You choose to distribute Source Code Form that is
+      Incompatible With Secondary Licenses under the terms of this version of
+      the License, the notice described in Exhibit B of this License must be
+      attached.
+
+Exhibit A - Source Code Form License Notice
+
+      This Source Code Form is subject to the
+      terms of the Mozilla Public License, v.
+      2.0. If a copy of the MPL was not
+      distributed with this file, You can
+      obtain one at
+      https://mozilla.org/MPL/2.0/.
+
+If it is not possible or desirable to put the notice in a particular file,
+then You may include the notice in a location (such as a LICENSE file in a
+relevant directory) where a recipient would be likely to look for such a
+notice.
+
+You may add additional accurate notices of copyright ownership.
+
+Exhibit B - "Incompatible With Secondary Licenses" Notice
+
+      This Source Code Form is "Incompatible
+      With Secondary Licenses", as defined by
+      the Mozilla Public License, v. 2.0.
diff --git a/setuptools/config/_validate_pyproject/__init__.py b/setuptools/config/_validate_pyproject/__init__.py
new file mode 100644
index 0000000000..4f612bd51c
--- /dev/null
+++ b/setuptools/config/_validate_pyproject/__init__.py
@@ -0,0 +1,34 @@
+from functools import reduce
+from typing import Any, Callable, Dict
+
+from . import formats
+from .error_reporting import detailed_errors, ValidationError
+from .extra_validations import EXTRA_VALIDATIONS
+from .fastjsonschema_exceptions import JsonSchemaException, JsonSchemaValueException
+from .fastjsonschema_validations import validate as _validate
+
+__all__ = [
+    "validate",
+    "FORMAT_FUNCTIONS",
+    "EXTRA_VALIDATIONS",
+    "ValidationError",
+    "JsonSchemaException",
+    "JsonSchemaValueException",
+]
+
+
+FORMAT_FUNCTIONS: Dict[str, Callable[[str], bool]] = {
+    fn.__name__.replace("_", "-"): fn
+    for fn in formats.__dict__.values()
+    if callable(fn) and not fn.__name__.startswith("_")
+}
+
+
+def validate(data: Any) -> bool:
+    """Validate the given ``data`` object using JSON Schema
+    This function raises ``ValidationError`` if ``data`` is invalid.
+    """
+    with detailed_errors():
+        _validate(data, custom_formats=FORMAT_FUNCTIONS)
+        reduce(lambda acc, fn: fn(acc), EXTRA_VALIDATIONS, data)
+    return True
diff --git a/setuptools/config/_validate_pyproject/error_reporting.py b/setuptools/config/_validate_pyproject/error_reporting.py
new file mode 100644
index 0000000000..3591231c09
--- /dev/null
+++ b/setuptools/config/_validate_pyproject/error_reporting.py
@@ -0,0 +1,336 @@
+import io
+import json
+import logging
+import os
+import re
+import typing
+from contextlib import contextmanager
+from textwrap import indent, wrap
+from typing import Any, Dict, Generator, Iterator, List, Optional, Sequence, Union
+
+from .fastjsonschema_exceptions import JsonSchemaValueException
+
+if typing.TYPE_CHECKING:
+    import sys
+
+    if sys.version_info < (3, 11):
+        from typing_extensions import Self
+    else:
+        from typing import Self
+
+_logger = logging.getLogger(__name__)
+
+_MESSAGE_REPLACEMENTS = {
+    "must be named by propertyName definition": "keys must be named by",
+    "one of contains definition": "at least one item that matches",
+    " same as const definition:": "",
+    "only specified items": "only items matching the definition",
+}
+
+_SKIP_DETAILS = (
+    "must not be empty",
+    "is always invalid",
+    "must not be there",
+)
+
+_NEED_DETAILS = {"anyOf", "oneOf", "allOf", "contains", "propertyNames", "not", "items"}
+
+_CAMEL_CASE_SPLITTER = re.compile(r"\W+|([A-Z][^A-Z\W]*)")
+_IDENTIFIER = re.compile(r"^[\w_]+$", re.I)
+
+_TOML_JARGON = {
+    "object": "table",
+    "property": "key",
+    "properties": "keys",
+    "property names": "keys",
+}
+
+_FORMATS_HELP = """
+For more details about `format` see
+https://validate-pyproject.readthedocs.io/en/latest/api/validate_pyproject.formats.html
+"""
+
+
+class ValidationError(JsonSchemaValueException):
+    """Report violations of a given JSON schema.
+
+    This class extends :exc:`~fastjsonschema.JsonSchemaValueException`
+    by adding the following properties:
+
+    - ``summary``: an improved version of the ``JsonSchemaValueException`` error message
+      with only the necessary information)
+
+    - ``details``: more contextual information about the error like the failing schema
+      itself and the value that violates the schema.
+
+    Depending on the level of the verbosity of the ``logging`` configuration
+    the exception message will be only ``summary`` (default) or a combination of
+    ``summary`` and ``details`` (when the logging level is set to :obj:`logging.DEBUG`).
+    """
+
+    summary = ""
+    details = ""
+    _original_message = ""
+
+    @classmethod
+    def _from_jsonschema(cls, ex: JsonSchemaValueException) -> "Self":
+        formatter = _ErrorFormatting(ex)
+        obj = cls(str(formatter), ex.value, formatter.name, ex.definition, ex.rule)
+        debug_code = os.getenv("JSONSCHEMA_DEBUG_CODE_GENERATION", "false").lower()
+        if debug_code != "false":  # pragma: no cover
+            obj.__cause__, obj.__traceback__ = ex.__cause__, ex.__traceback__
+        obj._original_message = ex.message
+        obj.summary = formatter.summary
+        obj.details = formatter.details
+        return obj
+
+
+@contextmanager
+def detailed_errors() -> Generator[None, None, None]:
+    try:
+        yield
+    except JsonSchemaValueException as ex:
+        raise ValidationError._from_jsonschema(ex) from None
+
+
+class _ErrorFormatting:
+    def __init__(self, ex: JsonSchemaValueException):
+        self.ex = ex
+        self.name = f"`{self._simplify_name(ex.name)}`"
+        self._original_message: str = self.ex.message.replace(ex.name, self.name)
+        self._summary = ""
+        self._details = ""
+
+    def __str__(self) -> str:
+        if _logger.getEffectiveLevel() <= logging.DEBUG and self.details:
+            return f"{self.summary}\n\n{self.details}"
+
+        return self.summary
+
+    @property
+    def summary(self) -> str:
+        if not self._summary:
+            self._summary = self._expand_summary()
+
+        return self._summary
+
+    @property
+    def details(self) -> str:
+        if not self._details:
+            self._details = self._expand_details()
+
+        return self._details
+
+    @staticmethod
+    def _simplify_name(name: str) -> str:
+        x = len("data.")
+        return name[x:] if name.startswith("data.") else name
+
+    def _expand_summary(self) -> str:
+        msg = self._original_message
+
+        for bad, repl in _MESSAGE_REPLACEMENTS.items():
+            msg = msg.replace(bad, repl)
+
+        if any(substring in msg for substring in _SKIP_DETAILS):
+            return msg
+
+        schema = self.ex.rule_definition
+        if self.ex.rule in _NEED_DETAILS and schema:
+            summary = _SummaryWriter(_TOML_JARGON)
+            return f"{msg}:\n\n{indent(summary(schema), '    ')}"
+
+        return msg
+
+    def _expand_details(self) -> str:
+        optional = []
+        definition = self.ex.definition or {}
+        desc_lines = definition.pop("$$description", [])
+        desc = definition.pop("description", None) or " ".join(desc_lines)
+        if desc:
+            description = "\n".join(
+                wrap(
+                    desc,
+                    width=80,
+                    initial_indent="    ",
+                    subsequent_indent="    ",
+                    break_long_words=False,
+                )
+            )
+            optional.append(f"DESCRIPTION:\n{description}")
+        schema = json.dumps(definition, indent=4)
+        value = json.dumps(self.ex.value, indent=4)
+        defaults = [
+            f"GIVEN VALUE:\n{indent(value, '    ')}",
+            f"OFFENDING RULE: {self.ex.rule!r}",
+            f"DEFINITION:\n{indent(schema, '    ')}",
+        ]
+        msg = "\n\n".join(optional + defaults)
+        epilog = f"\n{_FORMATS_HELP}" if "format" in msg.lower() else ""
+        return msg + epilog
+
+
+class _SummaryWriter:
+    _IGNORE = frozenset(("description", "default", "title", "examples"))
+
+    def __init__(self, jargon: Optional[Dict[str, str]] = None):
+        self.jargon: Dict[str, str] = jargon or {}
+        # Clarify confusing terms
+        self._terms = {
+            "anyOf": "at least one of the following",
+            "oneOf": "exactly one of the following",
+            "allOf": "all of the following",
+            "not": "(*NOT* the following)",
+            "prefixItems": f"{self._jargon('items')} (in order)",
+            "items": "items",
+            "contains": "contains at least one of",
+            "propertyNames": (
+                f"non-predefined acceptable {self._jargon('property names')}"
+            ),
+            "patternProperties": f"{self._jargon('properties')} named via pattern",
+            "const": "predefined value",
+            "enum": "one of",
+        }
+        # Attributes that indicate that the definition is easy and can be done
+        # inline (e.g. string and number)
+        self._guess_inline_defs = [
+            "enum",
+            "const",
+            "maxLength",
+            "minLength",
+            "pattern",
+            "format",
+            "minimum",
+            "maximum",
+            "exclusiveMinimum",
+            "exclusiveMaximum",
+            "multipleOf",
+        ]
+
+    def _jargon(self, term: Union[str, List[str]]) -> Union[str, List[str]]:
+        if isinstance(term, list):
+            return [self.jargon.get(t, t) for t in term]
+        return self.jargon.get(term, term)
+
+    def __call__(
+        self,
+        schema: Union[dict, List[dict]],
+        prefix: str = "",
+        *,
+        _path: Sequence[str] = (),
+    ) -> str:
+        if isinstance(schema, list):
+            return self._handle_list(schema, prefix, _path)
+
+        filtered = self._filter_unecessary(schema, _path)
+        simple = self._handle_simple_dict(filtered, _path)
+        if simple:
+            return f"{prefix}{simple}"
+
+        child_prefix = self._child_prefix(prefix, "  ")
+        item_prefix = self._child_prefix(prefix, "- ")
+        indent = len(prefix) * " "
+        with io.StringIO() as buffer:
+            for i, (key, value) in enumerate(filtered.items()):
+                child_path = [*_path, key]
+                line_prefix = prefix if i == 0 else indent
+                buffer.write(f"{line_prefix}{self._label(child_path)}:")
+                # ^  just the first item should receive the complete prefix
+                if isinstance(value, dict):
+                    filtered = self._filter_unecessary(value, child_path)
+                    simple = self._handle_simple_dict(filtered, child_path)
+                    buffer.write(
+                        f" {simple}"
+                        if simple
+                        else f"\n{self(value, child_prefix, _path=child_path)}"
+                    )
+                elif isinstance(value, list) and (
+                    key != "type" or self._is_property(child_path)
+                ):
+                    children = self._handle_list(value, item_prefix, child_path)
+                    sep = " " if children.startswith("[") else "\n"
+                    buffer.write(f"{sep}{children}")
+                else:
+                    buffer.write(f" {self._value(value, child_path)}\n")
+            return buffer.getvalue()
+
+    def _is_unecessary(self, path: Sequence[str]) -> bool:
+        if self._is_property(path) or not path:  # empty path => instruction @ root
+            return False
+        key = path[-1]
+        return any(key.startswith(k) for k in "$_") or key in self._IGNORE
+
+    def _filter_unecessary(
+        self, schema: Dict[str, Any], path: Sequence[str]
+    ) -> Dict[str, Any]:
+        return {
+            key: value
+            for key, value in schema.items()
+            if not self._is_unecessary([*path, key])
+        }
+
+    def _handle_simple_dict(self, value: dict, path: Sequence[str]) -> Optional[str]:
+        inline = any(p in value for p in self._guess_inline_defs)
+        simple = not any(isinstance(v, (list, dict)) for v in value.values())
+        if inline or simple:
+            return f"{{{', '.join(self._inline_attrs(value, path))}}}\n"
+        return None
+
+    def _handle_list(
+        self, schemas: list, prefix: str = "", path: Sequence[str] = ()
+    ) -> str:
+        if self._is_unecessary(path):
+            return ""
+
+        repr_ = repr(schemas)
+        if all(not isinstance(e, (dict, list)) for e in schemas) and len(repr_) < 60:
+            return f"{repr_}\n"
+
+        item_prefix = self._child_prefix(prefix, "- ")
+        return "".join(
+            self(v, item_prefix, _path=[*path, f"[{i}]"]) for i, v in enumerate(schemas)
+        )
+
+    def _is_property(self, path: Sequence[str]) -> bool:
+        """Check if the given path can correspond to an arbitrarily named property"""
+        counter = 0
+        for key in path[-2::-1]:
+            if key not in {"properties", "patternProperties"}:
+                break
+            counter += 1
+
+        # If the counter if even, the path correspond to a JSON Schema keyword
+        # otherwise it can be any arbitrary string naming a property
+        return counter % 2 == 1
+
+    def _label(self, path: Sequence[str]) -> str:
+        *parents, key = path
+        if not self._is_property(path):
+            norm_key = _separate_terms(key)
+            return self._terms.get(key) or " ".join(self._jargon(norm_key))
+
+        if parents[-1] == "patternProperties":
+            return f"(regex {key!r})"
+        return repr(key)  # property name
+
+    def _value(self, value: Any, path: Sequence[str]) -> str:
+        if path[-1] == "type" and not self._is_property(path):
+            type_ = self._jargon(value)
+            return f"[{', '.join(type_)}]" if isinstance(type_, list) else type_
+        return repr(value)
+
+    def _inline_attrs(self, schema: dict, path: Sequence[str]) -> Iterator[str]:
+        for key, value in schema.items():
+            child_path = [*path, key]
+            yield f"{self._label(child_path)}: {self._value(value, child_path)}"
+
+    def _child_prefix(self, parent_prefix: str, child_prefix: str) -> str:
+        return len(parent_prefix) * " " + child_prefix
+
+
+def _separate_terms(word: str) -> List[str]:
+    """
+    >>> _separate_terms("FooBar-foo")
+    ['foo', 'bar', 'foo']
+    """
+    return [w.lower() for w in _CAMEL_CASE_SPLITTER.split(word) if w]
diff --git a/setuptools/config/_validate_pyproject/extra_validations.py b/setuptools/config/_validate_pyproject/extra_validations.py
new file mode 100644
index 0000000000..789411d0ff
--- /dev/null
+++ b/setuptools/config/_validate_pyproject/extra_validations.py
@@ -0,0 +1,82 @@
+"""The purpose of this module is implement PEP 621 validations that are
+difficult to express as a JSON Schema (or that are not supported by the current
+JSON Schema library).
+"""
+
+from inspect import cleandoc
+from typing import Mapping, TypeVar
+
+from .error_reporting import ValidationError
+
+T = TypeVar("T", bound=Mapping)
+
+
+class RedefiningStaticFieldAsDynamic(ValidationError):
+    _DESC = """According to PEP 621:
+
+    Build back-ends MUST raise an error if the metadata specifies a field
+    statically as well as being listed in dynamic.
+    """
+    __doc__ = _DESC
+    _URL = (
+        "https://packaging.python.org/en/latest/specifications/"
+        "pyproject-toml/#dynamic"
+    )
+
+
+class IncludedDependencyGroupMustExist(ValidationError):
+    _DESC = """An included dependency group must exist and must not be cyclic.
+    """
+    __doc__ = _DESC
+    _URL = "https://peps.python.org/pep-0735/"
+
+
+def validate_project_dynamic(pyproject: T) -> T:
+    project_table = pyproject.get("project", {})
+    dynamic = project_table.get("dynamic", [])
+
+    for field in dynamic:
+        if field in project_table:
+            raise RedefiningStaticFieldAsDynamic(
+                message=f"You cannot provide a value for `project.{field}` and "
+                "list it under `project.dynamic` at the same time",
+                value={
+                    field: project_table[field],
+                    "...": " # ...",
+                    "dynamic": dynamic,
+                },
+                name=f"data.project.{field}",
+                definition={
+                    "description": cleandoc(RedefiningStaticFieldAsDynamic._DESC),
+                    "see": RedefiningStaticFieldAsDynamic._URL,
+                },
+                rule="PEP 621",
+            )
+
+    return pyproject
+
+
+def validate_include_depenency(pyproject: T) -> T:
+    dependency_groups = pyproject.get("dependency-groups", {})
+    for key, value in dependency_groups.items():
+        for each in value:
+            if (
+                isinstance(each, dict)
+                and (include_group := each.get("include-group"))
+                and include_group not in dependency_groups
+            ):
+                raise IncludedDependencyGroupMustExist(
+                    message=f"The included dependency group {include_group} doesn't exist",
+                    value=each,
+                    name=f"data.dependency_groups.{key}",
+                    definition={
+                        "description": cleandoc(IncludedDependencyGroupMustExist._DESC),
+                        "see": IncludedDependencyGroupMustExist._URL,
+                    },
+                    rule="PEP 735",
+                )
+    # TODO: check for `include-group` cycles (can be conditional to graphlib)
+    return pyproject
+
+
+EXTRA_VALIDATIONS = (validate_project_dynamic, validate_include_depenency)
diff --git a/setuptools/config/_validate_pyproject/fastjsonschema_exceptions.py b/setuptools/config/_validate_pyproject/fastjsonschema_exceptions.py
new file mode 100644
index 0000000000..d2dddd6a10
--- /dev/null
+++ b/setuptools/config/_validate_pyproject/fastjsonschema_exceptions.py
@@ -0,0 +1,51 @@
+import re
+
+
+SPLIT_RE = re.compile(r'[\.\[\]]+')
+
+
+class JsonSchemaException(ValueError):
+    """
+    Base exception of ``fastjsonschema`` library.
+    """
+
+
+class JsonSchemaValueException(JsonSchemaException):
+    """
+    Exception raised by validation function. Available properties:
+
+     * ``message`` containing human-readable information what is wrong (e.g. ``data.property[index] must be smaller than or equal to 42``),
+     * invalid ``value`` (e.g. ``60``),
+     * ``name`` of a path in the data structure (e.g. ``data.property[index]``),
+     * ``path`` as an array in the data structure (e.g. ``['data', 'property', 'index']``),
+     * the whole ``definition`` which the ``value`` has to fulfil (e.g. ``{'type': 'number', 'maximum': 42}``),
+     * ``rule`` which the ``value`` is breaking (e.g. ``maximum``)
+     * and ``rule_definition`` (e.g. ``42``).
+
+    .. versionchanged:: 2.14.0
+        Added all extra properties.
+    """
+
+    def __init__(self, message, value=None, name=None, definition=None, rule=None):
+        super().__init__(message)
+        self.message = message
+        self.value = value
+        self.name = name
+        self.definition = definition
+        self.rule = rule
+
+    @property
+    def path(self):
+        return [item for item in SPLIT_RE.split(self.name) if item != '']
+
+    @property
+    def rule_definition(self):
+        if not self.rule or not self.definition:
+            return None
+        return self.definition.get(self.rule)
+
+
+class JsonSchemaDefinitionException(JsonSchemaException):
+    """
+    Exception raised by generator of validation function.
+    """
diff --git a/setuptools/config/_validate_pyproject/fastjsonschema_validations.py b/setuptools/config/_validate_pyproject/fastjsonschema_validations.py
new file mode 100644
index 0000000000..c69368a83f
--- /dev/null
+++ b/setuptools/config/_validate_pyproject/fastjsonschema_validations.py
@@ -0,0 +1,1412 @@
+# noqa
+# ruff: noqa
+# flake8: noqa
+# pylint: skip-file
+# mypy: ignore-errors
+# yapf: disable
+# pylama:skip=1
+
+
+# *** PLEASE DO NOT MODIFY DIRECTLY: Automatically generated code *** 
+
+
+VERSION = "2.20.0"
+from decimal import Decimal
+import re
+from .fastjsonschema_exceptions import JsonSchemaValueException
+
+
+REGEX_PATTERNS = {
+    '^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9._-]*[a-zA-Z0-9])$': re.compile('^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9._-]*[a-zA-Z0-9])\\Z'),
+    '^.*$': re.compile('^.*$'),
+    '.+': re.compile('.+'),
+    '^.+$': re.compile('^.+$'),
+    'idn-email_re_pattern': re.compile('^[^@]+@[^@]+\\.[^@]+\\Z')
+}
+
+NoneType = type(None)
+
+def validate(data, custom_formats={}, name_prefix=None):
+    validate_https___packaging_python_org_en_latest_specifications_declaring_build_dependencies(data, custom_formats, (name_prefix or "data") + "")
+    return data
+
+def validate_https___packaging_python_org_en_latest_specifications_declaring_build_dependencies(data, custom_formats={}, name_prefix=None):
+    if not isinstance(data, (dict)):
+        raise JsonSchemaValueException("" + (name_prefix or "data") + " must be object", value=data, name="" + (name_prefix or "data") + "", definition={'$schema': 'http://json-schema.org/draft-07/schema#', '$id': 'https://packaging.python.org/en/latest/specifications/declaring-build-dependencies/', 'title': 'Data structure for ``pyproject.toml`` files', '$$description': ['File format containing build-time configurations for the Python ecosystem. ', ':pep:`517` initially defined a build-system independent format for source trees', 'which was complemented by :pep:`518` to provide a way of specifying dependencies ', 'for building Python projects.', 'Please notice the ``project`` table (as initially defined in  :pep:`621`) is not included', 'in this schema and should be considered separately.'], 'type': 'object', 'additionalProperties': False, 'properties': {'build-system': {'type': 'object', 'description': 'Table used to store build-related data', 'additionalProperties': False, 'properties': {'requires': {'type': 'array', '$$description': ['List of dependencies in the :pep:`508` format required to execute the build', 'system. Please notice that the resulting dependency graph', '**MUST NOT contain cycles**'], 'items': {'type': 'string'}}, 'build-backend': {'type': 'string', 'description': 'Python object that will be used to perform the build according to :pep:`517`', 'format': 'pep517-backend-reference'}, 'backend-path': {'type': 'array', '$$description': ['List of directories to be prepended to ``sys.path`` when loading the', 'back-end, and running its hooks'], 'items': {'type': 'string', '$comment': 'Should be a path (TODO: enforce it with format?)'}}}, 'required': ['requires']}, 'project': {'$schema': 'http://json-schema.org/draft-07/schema#', '$id': 'https://packaging.python.org/en/latest/specifications/pyproject-toml/', 'title': 'Package metadata stored in the ``project`` table', '$$description': ['Data structure for the **project** table inside ``pyproject.toml``', '(as initially defined in :pep:`621`)'], 'type': 'object', 'properties': {'name': {'type': 'string', 'description': 'The name (primary identifier) of the project. MUST be statically defined.', 'format': 'pep508-identifier'}, 'version': {'type': 'string', 'description': 'The version of the project as supported by :pep:`440`.', 'format': 'pep440'}, 'description': {'type': 'string', '$$description': ['The `summary description of the project', '`_']}, 'readme': {'$$description': ['`Full/detailed description of the project in the form of a README', '`_', "with meaning similar to the one defined in `core metadata's Description", '`_'], 'oneOf': [{'type': 'string', '$$description': ['Relative path to a text file (UTF-8) containing the full description', 'of the project. If the file path ends in case-insensitive ``.md`` or', '``.rst`` suffixes, then the content-type is respectively', '``text/markdown`` or ``text/x-rst``']}, {'type': 'object', 'allOf': [{'anyOf': [{'properties': {'file': {'type': 'string', '$$description': ['Relative path to a text file containing the full description', 'of the project.']}}, 'required': ['file']}, {'properties': {'text': {'type': 'string', 'description': 'Full text describing the project.'}}, 'required': ['text']}]}, {'properties': {'content-type': {'type': 'string', '$$description': ['Content-type (:rfc:`1341`) of the full description', '(e.g. ``text/markdown``). The ``charset`` parameter is assumed', 'UTF-8 when not present.'], '$comment': 'TODO: add regex pattern or format?'}}, 'required': ['content-type']}]}]}, 'requires-python': {'type': 'string', 'format': 'pep508-versionspec', '$$description': ['`The Python version requirements of the project', '`_.']}, 'license': {'description': '`Project license `_.', 'oneOf': [{'type': 'string', 'description': 'An SPDX license identifier', 'format': 'SPDX'}, {'type': 'object', 'properties': {'file': {'type': 'string', '$$description': ['Relative path to the file (UTF-8) which contains the license for the', 'project.']}}, 'required': ['file']}, {'type': 'object', 'properties': {'text': {'type': 'string', '$$description': ['The license of the project whose meaning is that of the', '`License field from the core metadata', '`_.']}}, 'required': ['text']}]}, 'license-files': {'description': 'Paths or globs to paths of license files', 'type': 'array', 'items': {'type': 'string'}}, 'authors': {'type': 'array', 'items': {'$ref': '#/definitions/author'}, '$$description': ["The people or organizations considered to be the 'authors' of the project.", 'The exact meaning is open to interpretation (e.g. original or primary authors,', 'current maintainers, or owners of the package).']}, 'maintainers': {'type': 'array', 'items': {'$ref': '#/definitions/author'}, '$$description': ["The people or organizations considered to be the 'maintainers' of the project.", 'Similarly to ``authors``, the exact meaning is open to interpretation.']}, 'keywords': {'type': 'array', 'items': {'type': 'string'}, 'description': 'List of keywords to assist searching for the distribution in a larger catalog.'}, 'classifiers': {'type': 'array', 'items': {'type': 'string', 'format': 'trove-classifier', 'description': '`PyPI classifier `_.'}, '$$description': ['`Trove classifiers `_', 'which apply to the project.']}, 'urls': {'type': 'object', 'description': 'URLs associated with the project in the form ``label => value``.', 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', 'format': 'url'}}}, 'scripts': {'$ref': '#/definitions/entry-point-group', '$$description': ['Instruct the installer to create command-line wrappers for the given', '`entry points `_.']}, 'gui-scripts': {'$ref': '#/definitions/entry-point-group', '$$description': ['Instruct the installer to create GUI wrappers for the given', '`entry points `_.', 'The difference between ``scripts`` and ``gui-scripts`` is only relevant in', 'Windows.']}, 'entry-points': {'$$description': ['Instruct the installer to expose the given modules/functions via', '``entry-point`` discovery mechanism (useful for plugins).', 'More information available in the `Python packaging guide', '`_.'], 'propertyNames': {'format': 'python-entrypoint-group'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'$ref': '#/definitions/entry-point-group'}}}, 'dependencies': {'type': 'array', 'description': 'Project (mandatory) dependencies.', 'items': {'$ref': '#/definitions/dependency'}}, 'optional-dependencies': {'type': 'object', 'description': 'Optional dependency for the project', 'propertyNames': {'format': 'pep508-identifier'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'array', 'items': {'$ref': '#/definitions/dependency'}}}}, 'dynamic': {'type': 'array', '$$description': ['Specifies which fields are intentionally unspecified and expected to be', 'dynamically provided by build tools'], 'items': {'enum': ['version', 'description', 'readme', 'requires-python', 'license', 'license-files', 'authors', 'maintainers', 'keywords', 'classifiers', 'urls', 'scripts', 'gui-scripts', 'entry-points', 'dependencies', 'optional-dependencies']}}}, 'required': ['name'], 'additionalProperties': False, 'allOf': [{'if': {'not': {'required': ['dynamic'], 'properties': {'dynamic': {'contains': {'const': 'version'}, '$$description': ['version is listed in ``dynamic``']}}}, '$$comment': ['According to :pep:`621`:', '    If the core metadata specification lists a field as "Required", then', '    the metadata MUST specify the field statically or list it in dynamic', 'In turn, `core metadata`_ defines:', '    The required fields are: Metadata-Version, Name, Version.', '    All the other fields are optional.', 'Since ``Metadata-Version`` is defined by the build back-end, ``name`` and', '``version`` are the only mandatory information in ``pyproject.toml``.', '.. _core metadata: https://packaging.python.org/specifications/core-metadata/']}, 'then': {'required': ['version'], '$$description': ['version should be statically defined in the ``version`` field']}}, {'if': {'required': ['license-files']}, 'then': {'properties': {'license': {'type': 'string'}}}}], 'definitions': {'author': {'$id': '#/definitions/author', 'title': 'Author or Maintainer', '$comment': 'https://peps.python.org/pep-0621/#authors-maintainers', 'type': 'object', 'additionalProperties': False, 'properties': {'name': {'type': 'string', '$$description': ['MUST be a valid email name, i.e. whatever can be put as a name, before an', 'email, in :rfc:`822`.']}, 'email': {'type': 'string', 'format': 'idn-email', 'description': 'MUST be a valid email address'}}}, 'entry-point-group': {'$id': '#/definitions/entry-point-group', 'title': 'Entry-points', 'type': 'object', '$$description': ['Entry-points are grouped together to indicate what sort of capabilities they', 'provide.', 'See the `packaging guides', '`_', 'and `setuptools docs', '`_', 'for more information.'], 'propertyNames': {'format': 'python-entrypoint-name'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', '$$description': ['Reference to a Python object. It is either in the form', '``importable.module``, or ``importable.module:object.attr``.'], 'format': 'python-entrypoint-reference', '$comment': 'https://packaging.python.org/specifications/entry-points/'}}}, 'dependency': {'$id': '#/definitions/dependency', 'title': 'Dependency', 'type': 'string', 'description': 'Project dependency specification according to PEP 508', 'format': 'pep508'}}}, 'tool': {'type': 'object', 'properties': {'distutils': {'$schema': 'http://json-schema.org/draft-07/schema#', '$id': 'https://setuptools.pypa.io/en/latest/deprecated/distutils/configfile.html', 'title': '``tool.distutils`` table', '$$description': ['**EXPERIMENTAL** (NOT OFFICIALLY SUPPORTED): Use ``tool.distutils``', 'subtables to configure arguments for ``distutils`` commands.', 'Originally, ``distutils`` allowed developers to configure arguments for', '``setup.py`` commands via `distutils configuration files', '`_.', 'See also `the old Python docs _`.'], 'type': 'object', 'properties': {'global': {'type': 'object', 'description': 'Global options applied to all ``distutils`` commands'}}, 'patternProperties': {'.+': {'type': 'object'}}, '$comment': 'TODO: Is there a practical way of making this schema more specific?'}, 'setuptools': {'$schema': 'http://json-schema.org/draft-07/schema#', '$id': 'https://setuptools.pypa.io/en/latest/userguide/pyproject_config.html', 'title': '``tool.setuptools`` table', '$$description': ['``setuptools``-specific configurations that can be set by users that require', 'customization.', 'These configurations are completely optional and probably can be skipped when', 'creating simple packages. They are equivalent to some of the `Keywords', '`_', 'used by the ``setup.py`` file, and can be set via the ``tool.setuptools`` table.', 'It considers only ``setuptools`` `parameters', '`_', 'that are not covered by :pep:`621`; and intentionally excludes ``dependency_links``', 'and ``setup_requires`` (incompatible with modern workflows/standards).'], 'type': 'object', 'additionalProperties': False, 'properties': {'platforms': {'type': 'array', 'items': {'type': 'string'}}, 'provides': {'$$description': ['Package and virtual package names contained within this package', '**(not supported by pip)**'], 'type': 'array', 'items': {'type': 'string', 'format': 'pep508-identifier'}}, 'obsoletes': {'$$description': ['Packages which this package renders obsolete', '**(not supported by pip)**'], 'type': 'array', 'items': {'type': 'string', 'format': 'pep508-identifier'}}, 'zip-safe': {'$$description': ['Whether the project can be safely installed and run from a zip file.', '**OBSOLETE**: only relevant for ``pkg_resources``, ``easy_install`` and', '``setup.py install`` in the context of ``eggs`` (**DEPRECATED**).'], 'type': 'boolean'}, 'script-files': {'$$description': ['Legacy way of defining scripts (entry-points are preferred).', 'Equivalent to the ``script`` keyword in ``setup.py``', '(it was renamed to avoid confusion with entry-point based ``project.scripts``', 'defined in :pep:`621`).', '**DISCOURAGED**: generic script wrappers are tricky and may not work properly.', 'Whenever possible, please use ``project.scripts`` instead.'], 'type': 'array', 'items': {'type': 'string'}, '$comment': 'TODO: is this field deprecated/should be removed?'}, 'eager-resources': {'$$description': ['Resources that should be extracted together, if any of them is needed,', 'or if any C extensions included in the project are imported.', '**OBSOLETE**: only relevant for ``pkg_resources``, ``easy_install`` and', '``setup.py install`` in the context of ``eggs`` (**DEPRECATED**).'], 'type': 'array', 'items': {'type': 'string'}}, 'packages': {'$$description': ['Packages that should be included in the distribution.', 'It can be given either as a list of package identifiers', 'or as a ``dict``-like structure with a single key ``find``', 'which corresponds to a dynamic call to', '``setuptools.config.expand.find_packages`` function.', 'The ``find`` key is associated with a nested ``dict``-like structure that can', 'contain ``where``, ``include``, ``exclude`` and ``namespaces`` keys,', 'mimicking the keyword arguments of the associated function.'], 'oneOf': [{'title': 'Array of Python package identifiers', 'type': 'array', 'items': {'$ref': '#/definitions/package-name'}}, {'$ref': '#/definitions/find-directive'}]}, 'package-dir': {'$$description': [':class:`dict`-like structure mapping from package names to directories where their', 'code can be found.', 'The empty string (as key) means that all packages are contained inside', 'the given directory will be included in the distribution.'], 'type': 'object', 'additionalProperties': False, 'propertyNames': {'anyOf': [{'const': ''}, {'$ref': '#/definitions/package-name'}]}, 'patternProperties': {'^.*$': {'type': 'string'}}}, 'package-data': {'$$description': ['Mapping from package names to lists of glob patterns.', 'Usually this option is not needed when using ``include-package-data = true``', 'For more information on how to include data files, check ``setuptools`` `docs', '`_.'], 'type': 'object', 'additionalProperties': False, 'propertyNames': {'anyOf': [{'type': 'string', 'format': 'python-module-name'}, {'const': '*'}]}, 'patternProperties': {'^.*$': {'type': 'array', 'items': {'type': 'string'}}}}, 'include-package-data': {'$$description': ['Automatically include any data files inside the package directories', 'that are specified by ``MANIFEST.in``', 'For more information on how to include data files, check ``setuptools`` `docs', '`_.'], 'type': 'boolean'}, 'exclude-package-data': {'$$description': ['Mapping from package names to lists of glob patterns that should be excluded', 'For more information on how to include data files, check ``setuptools`` `docs', '`_.'], 'type': 'object', 'additionalProperties': False, 'propertyNames': {'anyOf': [{'type': 'string', 'format': 'python-module-name'}, {'const': '*'}]}, 'patternProperties': {'^.*$': {'type': 'array', 'items': {'type': 'string'}}}}, 'namespace-packages': {'type': 'array', 'items': {'type': 'string', 'format': 'python-module-name-relaxed'}, '$comment': 'https://setuptools.pypa.io/en/latest/userguide/package_discovery.html', 'description': '**DEPRECATED**: use implicit namespaces instead (:pep:`420`).'}, 'py-modules': {'description': 'Modules that setuptools will manipulate', 'type': 'array', 'items': {'type': 'string', 'format': 'python-module-name-relaxed'}, '$comment': 'TODO: clarify the relationship with ``packages``'}, 'ext-modules': {'description': 'Extension modules to be compiled by setuptools', 'type': 'array', 'items': {'$ref': '#/definitions/ext-module'}}, 'data-files': {'$$description': ['``dict``-like structure where each key represents a directory and', 'the value is a list of glob patterns that should be installed in them.', '**DISCOURAGED**: please notice this might not work as expected with wheels.', 'Whenever possible, consider using data files inside the package directories', '(or create a new namespace package that only contains data files).', 'See `data files support', '`_.'], 'type': 'object', 'patternProperties': {'^.*$': {'type': 'array', 'items': {'type': 'string'}}}}, 'cmdclass': {'$$description': ['Mapping of distutils-style command names to ``setuptools.Command`` subclasses', 'which in turn should be represented by strings with a qualified class name', '(i.e., "dotted" form with module), e.g.::\n\n', '    cmdclass = {mycmd = "pkg.subpkg.module.CommandClass"}\n\n', 'The command class should be a directly defined at the top-level of the', 'containing module (no class nesting).'], 'type': 'object', 'patternProperties': {'^.*$': {'type': 'string', 'format': 'python-qualified-identifier'}}}, 'license-files': {'type': 'array', 'items': {'type': 'string'}, '$$description': ['**PROVISIONAL**: list of glob patterns for all license files being distributed.', '(likely to become standard with :pep:`639`).', "By default: ``['LICEN[CS]E*', 'COPYING*', 'NOTICE*', 'AUTHORS*']``"], '$comment': 'TODO: revise if PEP 639 is accepted. Probably ``project.license-files``?'}, 'dynamic': {'type': 'object', 'description': 'Instructions for loading :pep:`621`-related metadata dynamically', 'additionalProperties': False, 'properties': {'version': {'$$description': ['A version dynamically loaded via either the ``attr:`` or ``file:``', 'directives. Please make sure the given file or attribute respects :pep:`440`.', 'Also ensure to set ``project.dynamic`` accordingly.'], 'oneOf': [{'$ref': '#/definitions/attr-directive'}, {'$ref': '#/definitions/file-directive'}]}, 'classifiers': {'$ref': '#/definitions/file-directive'}, 'description': {'$ref': '#/definitions/file-directive'}, 'entry-points': {'$ref': '#/definitions/file-directive'}, 'dependencies': {'$ref': '#/definitions/file-directive-for-dependencies'}, 'optional-dependencies': {'type': 'object', 'propertyNames': {'type': 'string', 'format': 'pep508-identifier'}, 'additionalProperties': False, 'patternProperties': {'.+': {'$ref': '#/definitions/file-directive-for-dependencies'}}}, 'readme': {'type': 'object', 'anyOf': [{'$ref': '#/definitions/file-directive'}, {'type': 'object', 'properties': {'content-type': {'type': 'string'}, 'file': {'$ref': '#/definitions/file-directive/properties/file'}}, 'additionalProperties': False}], 'required': ['file']}}}}, 'definitions': {'package-name': {'$id': '#/definitions/package-name', 'title': 'Valid package name', 'description': 'Valid package name (importable or :pep:`561`).', 'type': 'string', 'anyOf': [{'type': 'string', 'format': 'python-module-name-relaxed'}, {'type': 'string', 'format': 'pep561-stub-name'}]}, 'ext-module': {'$id': '#/definitions/ext-module', 'title': 'Extension module', 'description': 'Parameters to construct a :class:`setuptools.Extension` object', 'type': 'object', 'required': ['name', 'sources'], 'additionalProperties': False, 'properties': {'name': {'type': 'string', 'format': 'python-module-name-relaxed'}, 'sources': {'type': 'array', 'items': {'type': 'string'}}, 'include-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'define-macros': {'type': 'array', 'items': {'type': 'array', 'items': [{'description': 'macro name', 'type': 'string'}, {'description': 'macro value', 'oneOf': [{'type': 'string'}, {'type': 'null'}]}], 'additionalItems': False}}, 'undef-macros': {'type': 'array', 'items': {'type': 'string'}}, 'library-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'libraries': {'type': 'array', 'items': {'type': 'string'}}, 'runtime-library-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'extra-objects': {'type': 'array', 'items': {'type': 'string'}}, 'extra-compile-args': {'type': 'array', 'items': {'type': 'string'}}, 'extra-link-args': {'type': 'array', 'items': {'type': 'string'}}, 'export-symbols': {'type': 'array', 'items': {'type': 'string'}}, 'swig-opts': {'type': 'array', 'items': {'type': 'string'}}, 'depends': {'type': 'array', 'items': {'type': 'string'}}, 'language': {'type': 'string'}, 'optional': {'type': 'boolean'}, 'py-limited-api': {'type': 'boolean'}}}, 'file-directive': {'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}, 'file-directive-for-dependencies': {'title': "'file:' directive for dependencies", 'allOf': [{'$$description': ['**BETA**: subset of the ``requirements.txt`` format', 'without ``pip`` flags and options', '(one :pep:`508`-compliant string per line,', 'lines that are blank or start with ``#`` are excluded).', 'See `dynamic metadata', '`_.']}, {'$ref': '#/definitions/file-directive'}]}, 'attr-directive': {'title': "'attr:' directive", '$id': '#/definitions/attr-directive', '$$description': ['Value is read from a module attribute. Supports callables and iterables;', 'unsupported types are cast via ``str()``'], 'type': 'object', 'additionalProperties': False, 'properties': {'attr': {'type': 'string', 'format': 'python-qualified-identifier'}}, 'required': ['attr']}, 'find-directive': {'$id': '#/definitions/find-directive', 'title': "'find:' directive", 'type': 'object', 'additionalProperties': False, 'properties': {'find': {'type': 'object', '$$description': ['Dynamic `package discovery', '`_.'], 'additionalProperties': False, 'properties': {'where': {'description': 'Directories to be searched for packages (Unix-style relative path)', 'type': 'array', 'items': {'type': 'string'}}, 'exclude': {'type': 'array', '$$description': ['Exclude packages that match the values listed in this field.', "Can container shell-style wildcards (e.g. ``'pkg.*'``)"], 'items': {'type': 'string'}}, 'include': {'type': 'array', '$$description': ['Restrict the found packages to just the ones listed in this field.', "Can container shell-style wildcards (e.g. ``'pkg.*'``)"], 'items': {'type': 'string'}}, 'namespaces': {'type': 'boolean', '$$description': ['When ``True``, directories without a ``__init__.py`` file will also', 'be scanned for :pep:`420`-style implicit namespaces']}}}}}}}}}, 'dependency-groups': {'type': 'object', 'description': 'Dependency groups following PEP 735', 'additionalProperties': False, 'patternProperties': {'^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9._-]*[a-zA-Z0-9])$': {'type': 'array', 'items': {'oneOf': [{'type': 'string', 'description': 'Python package specifiers following PEP 508', 'format': 'pep508'}, {'type': 'object', 'additionalProperties': False, 'properties': {'include-group': {'description': 'Another dependency group to include in this one', 'type': 'string', 'pattern': '^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9._-]*[a-zA-Z0-9])$'}}}]}}}}}, 'project': {'$schema': 'http://json-schema.org/draft-07/schema#', '$id': 'https://packaging.python.org/en/latest/specifications/pyproject-toml/', 'title': 'Package metadata stored in the ``project`` table', '$$description': ['Data structure for the **project** table inside ``pyproject.toml``', '(as initially defined in :pep:`621`)'], 'type': 'object', 'properties': {'name': {'type': 'string', 'description': 'The name (primary identifier) of the project. MUST be statically defined.', 'format': 'pep508-identifier'}, 'version': {'type': 'string', 'description': 'The version of the project as supported by :pep:`440`.', 'format': 'pep440'}, 'description': {'type': 'string', '$$description': ['The `summary description of the project', '`_']}, 'readme': {'$$description': ['`Full/detailed description of the project in the form of a README', '`_', "with meaning similar to the one defined in `core metadata's Description", '`_'], 'oneOf': [{'type': 'string', '$$description': ['Relative path to a text file (UTF-8) containing the full description', 'of the project. If the file path ends in case-insensitive ``.md`` or', '``.rst`` suffixes, then the content-type is respectively', '``text/markdown`` or ``text/x-rst``']}, {'type': 'object', 'allOf': [{'anyOf': [{'properties': {'file': {'type': 'string', '$$description': ['Relative path to a text file containing the full description', 'of the project.']}}, 'required': ['file']}, {'properties': {'text': {'type': 'string', 'description': 'Full text describing the project.'}}, 'required': ['text']}]}, {'properties': {'content-type': {'type': 'string', '$$description': ['Content-type (:rfc:`1341`) of the full description', '(e.g. ``text/markdown``). The ``charset`` parameter is assumed', 'UTF-8 when not present.'], '$comment': 'TODO: add regex pattern or format?'}}, 'required': ['content-type']}]}]}, 'requires-python': {'type': 'string', 'format': 'pep508-versionspec', '$$description': ['`The Python version requirements of the project', '`_.']}, 'license': {'description': '`Project license `_.', 'oneOf': [{'type': 'string', 'description': 'An SPDX license identifier', 'format': 'SPDX'}, {'type': 'object', 'properties': {'file': {'type': 'string', '$$description': ['Relative path to the file (UTF-8) which contains the license for the', 'project.']}}, 'required': ['file']}, {'type': 'object', 'properties': {'text': {'type': 'string', '$$description': ['The license of the project whose meaning is that of the', '`License field from the core metadata', '`_.']}}, 'required': ['text']}]}, 'license-files': {'description': 'Paths or globs to paths of license files', 'type': 'array', 'items': {'type': 'string'}}, 'authors': {'type': 'array', 'items': {'$ref': '#/definitions/author'}, '$$description': ["The people or organizations considered to be the 'authors' of the project.", 'The exact meaning is open to interpretation (e.g. original or primary authors,', 'current maintainers, or owners of the package).']}, 'maintainers': {'type': 'array', 'items': {'$ref': '#/definitions/author'}, '$$description': ["The people or organizations considered to be the 'maintainers' of the project.", 'Similarly to ``authors``, the exact meaning is open to interpretation.']}, 'keywords': {'type': 'array', 'items': {'type': 'string'}, 'description': 'List of keywords to assist searching for the distribution in a larger catalog.'}, 'classifiers': {'type': 'array', 'items': {'type': 'string', 'format': 'trove-classifier', 'description': '`PyPI classifier `_.'}, '$$description': ['`Trove classifiers `_', 'which apply to the project.']}, 'urls': {'type': 'object', 'description': 'URLs associated with the project in the form ``label => value``.', 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', 'format': 'url'}}}, 'scripts': {'$ref': '#/definitions/entry-point-group', '$$description': ['Instruct the installer to create command-line wrappers for the given', '`entry points `_.']}, 'gui-scripts': {'$ref': '#/definitions/entry-point-group', '$$description': ['Instruct the installer to create GUI wrappers for the given', '`entry points `_.', 'The difference between ``scripts`` and ``gui-scripts`` is only relevant in', 'Windows.']}, 'entry-points': {'$$description': ['Instruct the installer to expose the given modules/functions via', '``entry-point`` discovery mechanism (useful for plugins).', 'More information available in the `Python packaging guide', '`_.'], 'propertyNames': {'format': 'python-entrypoint-group'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'$ref': '#/definitions/entry-point-group'}}}, 'dependencies': {'type': 'array', 'description': 'Project (mandatory) dependencies.', 'items': {'$ref': '#/definitions/dependency'}}, 'optional-dependencies': {'type': 'object', 'description': 'Optional dependency for the project', 'propertyNames': {'format': 'pep508-identifier'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'array', 'items': {'$ref': '#/definitions/dependency'}}}}, 'dynamic': {'type': 'array', '$$description': ['Specifies which fields are intentionally unspecified and expected to be', 'dynamically provided by build tools'], 'items': {'enum': ['version', 'description', 'readme', 'requires-python', 'license', 'license-files', 'authors', 'maintainers', 'keywords', 'classifiers', 'urls', 'scripts', 'gui-scripts', 'entry-points', 'dependencies', 'optional-dependencies']}}}, 'required': ['name'], 'additionalProperties': False, 'allOf': [{'if': {'not': {'required': ['dynamic'], 'properties': {'dynamic': {'contains': {'const': 'version'}, '$$description': ['version is listed in ``dynamic``']}}}, '$$comment': ['According to :pep:`621`:', '    If the core metadata specification lists a field as "Required", then', '    the metadata MUST specify the field statically or list it in dynamic', 'In turn, `core metadata`_ defines:', '    The required fields are: Metadata-Version, Name, Version.', '    All the other fields are optional.', 'Since ``Metadata-Version`` is defined by the build back-end, ``name`` and', '``version`` are the only mandatory information in ``pyproject.toml``.', '.. _core metadata: https://packaging.python.org/specifications/core-metadata/']}, 'then': {'required': ['version'], '$$description': ['version should be statically defined in the ``version`` field']}}, {'if': {'required': ['license-files']}, 'then': {'properties': {'license': {'type': 'string'}}}}], 'definitions': {'author': {'$id': '#/definitions/author', 'title': 'Author or Maintainer', '$comment': 'https://peps.python.org/pep-0621/#authors-maintainers', 'type': 'object', 'additionalProperties': False, 'properties': {'name': {'type': 'string', '$$description': ['MUST be a valid email name, i.e. whatever can be put as a name, before an', 'email, in :rfc:`822`.']}, 'email': {'type': 'string', 'format': 'idn-email', 'description': 'MUST be a valid email address'}}}, 'entry-point-group': {'$id': '#/definitions/entry-point-group', 'title': 'Entry-points', 'type': 'object', '$$description': ['Entry-points are grouped together to indicate what sort of capabilities they', 'provide.', 'See the `packaging guides', '`_', 'and `setuptools docs', '`_', 'for more information.'], 'propertyNames': {'format': 'python-entrypoint-name'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', '$$description': ['Reference to a Python object. It is either in the form', '``importable.module``, or ``importable.module:object.attr``.'], 'format': 'python-entrypoint-reference', '$comment': 'https://packaging.python.org/specifications/entry-points/'}}}, 'dependency': {'$id': '#/definitions/dependency', 'title': 'Dependency', 'type': 'string', 'description': 'Project dependency specification according to PEP 508', 'format': 'pep508'}}}}, rule='type')
+    data_is_dict = isinstance(data, dict)
+    if data_is_dict:
+        data_keys = set(data.keys())
+        if "build-system" in data_keys:
+            data_keys.remove("build-system")
+            data__buildsystem = data["build-system"]
+            if not isinstance(data__buildsystem, (dict)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".build-system must be object", value=data__buildsystem, name="" + (name_prefix or "data") + ".build-system", definition={'type': 'object', 'description': 'Table used to store build-related data', 'additionalProperties': False, 'properties': {'requires': {'type': 'array', '$$description': ['List of dependencies in the :pep:`508` format required to execute the build', 'system. Please notice that the resulting dependency graph', '**MUST NOT contain cycles**'], 'items': {'type': 'string'}}, 'build-backend': {'type': 'string', 'description': 'Python object that will be used to perform the build according to :pep:`517`', 'format': 'pep517-backend-reference'}, 'backend-path': {'type': 'array', '$$description': ['List of directories to be prepended to ``sys.path`` when loading the', 'back-end, and running its hooks'], 'items': {'type': 'string', '$comment': 'Should be a path (TODO: enforce it with format?)'}}}, 'required': ['requires']}, rule='type')
+            data__buildsystem_is_dict = isinstance(data__buildsystem, dict)
+            if data__buildsystem_is_dict:
+                data__buildsystem__missing_keys = set(['requires']) - data__buildsystem.keys()
+                if data__buildsystem__missing_keys:
+                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".build-system must contain " + (str(sorted(data__buildsystem__missing_keys)) + " properties"), value=data__buildsystem, name="" + (name_prefix or "data") + ".build-system", definition={'type': 'object', 'description': 'Table used to store build-related data', 'additionalProperties': False, 'properties': {'requires': {'type': 'array', '$$description': ['List of dependencies in the :pep:`508` format required to execute the build', 'system. Please notice that the resulting dependency graph', '**MUST NOT contain cycles**'], 'items': {'type': 'string'}}, 'build-backend': {'type': 'string', 'description': 'Python object that will be used to perform the build according to :pep:`517`', 'format': 'pep517-backend-reference'}, 'backend-path': {'type': 'array', '$$description': ['List of directories to be prepended to ``sys.path`` when loading the', 'back-end, and running its hooks'], 'items': {'type': 'string', '$comment': 'Should be a path (TODO: enforce it with format?)'}}}, 'required': ['requires']}, rule='required')
+                data__buildsystem_keys = set(data__buildsystem.keys())
+                if "requires" in data__buildsystem_keys:
+                    data__buildsystem_keys.remove("requires")
+                    data__buildsystem__requires = data__buildsystem["requires"]
+                    if not isinstance(data__buildsystem__requires, (list, tuple)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".build-system.requires must be array", value=data__buildsystem__requires, name="" + (name_prefix or "data") + ".build-system.requires", definition={'type': 'array', '$$description': ['List of dependencies in the :pep:`508` format required to execute the build', 'system. Please notice that the resulting dependency graph', '**MUST NOT contain cycles**'], 'items': {'type': 'string'}}, rule='type')
+                    data__buildsystem__requires_is_list = isinstance(data__buildsystem__requires, (list, tuple))
+                    if data__buildsystem__requires_is_list:
+                        data__buildsystem__requires_len = len(data__buildsystem__requires)
+                        for data__buildsystem__requires_x, data__buildsystem__requires_item in enumerate(data__buildsystem__requires):
+                            if not isinstance(data__buildsystem__requires_item, (str)):
+                                raise JsonSchemaValueException("" + (name_prefix or "data") + ".build-system.requires[{data__buildsystem__requires_x}]".format(**locals()) + " must be string", value=data__buildsystem__requires_item, name="" + (name_prefix or "data") + ".build-system.requires[{data__buildsystem__requires_x}]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+                if "build-backend" in data__buildsystem_keys:
+                    data__buildsystem_keys.remove("build-backend")
+                    data__buildsystem__buildbackend = data__buildsystem["build-backend"]
+                    if not isinstance(data__buildsystem__buildbackend, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".build-system.build-backend must be string", value=data__buildsystem__buildbackend, name="" + (name_prefix or "data") + ".build-system.build-backend", definition={'type': 'string', 'description': 'Python object that will be used to perform the build according to :pep:`517`', 'format': 'pep517-backend-reference'}, rule='type')
+                    if isinstance(data__buildsystem__buildbackend, str):
+                        if not custom_formats["pep517-backend-reference"](data__buildsystem__buildbackend):
+                            raise JsonSchemaValueException("" + (name_prefix or "data") + ".build-system.build-backend must be pep517-backend-reference", value=data__buildsystem__buildbackend, name="" + (name_prefix or "data") + ".build-system.build-backend", definition={'type': 'string', 'description': 'Python object that will be used to perform the build according to :pep:`517`', 'format': 'pep517-backend-reference'}, rule='format')
+                if "backend-path" in data__buildsystem_keys:
+                    data__buildsystem_keys.remove("backend-path")
+                    data__buildsystem__backendpath = data__buildsystem["backend-path"]
+                    if not isinstance(data__buildsystem__backendpath, (list, tuple)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".build-system.backend-path must be array", value=data__buildsystem__backendpath, name="" + (name_prefix or "data") + ".build-system.backend-path", definition={'type': 'array', '$$description': ['List of directories to be prepended to ``sys.path`` when loading the', 'back-end, and running its hooks'], 'items': {'type': 'string', '$comment': 'Should be a path (TODO: enforce it with format?)'}}, rule='type')
+                    data__buildsystem__backendpath_is_list = isinstance(data__buildsystem__backendpath, (list, tuple))
+                    if data__buildsystem__backendpath_is_list:
+                        data__buildsystem__backendpath_len = len(data__buildsystem__backendpath)
+                        for data__buildsystem__backendpath_x, data__buildsystem__backendpath_item in enumerate(data__buildsystem__backendpath):
+                            if not isinstance(data__buildsystem__backendpath_item, (str)):
+                                raise JsonSchemaValueException("" + (name_prefix or "data") + ".build-system.backend-path[{data__buildsystem__backendpath_x}]".format(**locals()) + " must be string", value=data__buildsystem__backendpath_item, name="" + (name_prefix or "data") + ".build-system.backend-path[{data__buildsystem__backendpath_x}]".format(**locals()) + "", definition={'type': 'string', '$comment': 'Should be a path (TODO: enforce it with format?)'}, rule='type')
+                if data__buildsystem_keys:
+                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".build-system must not contain "+str(data__buildsystem_keys)+" properties", value=data__buildsystem, name="" + (name_prefix or "data") + ".build-system", definition={'type': 'object', 'description': 'Table used to store build-related data', 'additionalProperties': False, 'properties': {'requires': {'type': 'array', '$$description': ['List of dependencies in the :pep:`508` format required to execute the build', 'system. Please notice that the resulting dependency graph', '**MUST NOT contain cycles**'], 'items': {'type': 'string'}}, 'build-backend': {'type': 'string', 'description': 'Python object that will be used to perform the build according to :pep:`517`', 'format': 'pep517-backend-reference'}, 'backend-path': {'type': 'array', '$$description': ['List of directories to be prepended to ``sys.path`` when loading the', 'back-end, and running its hooks'], 'items': {'type': 'string', '$comment': 'Should be a path (TODO: enforce it with format?)'}}}, 'required': ['requires']}, rule='additionalProperties')
+        if "project" in data_keys:
+            data_keys.remove("project")
+            data__project = data["project"]
+            validate_https___packaging_python_org_en_latest_specifications_pyproject_toml(data__project, custom_formats, (name_prefix or "data") + ".project")
+        if "tool" in data_keys:
+            data_keys.remove("tool")
+            data__tool = data["tool"]
+            if not isinstance(data__tool, (dict)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".tool must be object", value=data__tool, name="" + (name_prefix or "data") + ".tool", definition={'type': 'object', 'properties': {'distutils': {'$schema': 'http://json-schema.org/draft-07/schema#', '$id': 'https://setuptools.pypa.io/en/latest/deprecated/distutils/configfile.html', 'title': '``tool.distutils`` table', '$$description': ['**EXPERIMENTAL** (NOT OFFICIALLY SUPPORTED): Use ``tool.distutils``', 'subtables to configure arguments for ``distutils`` commands.', 'Originally, ``distutils`` allowed developers to configure arguments for', '``setup.py`` commands via `distutils configuration files', '`_.', 'See also `the old Python docs _`.'], 'type': 'object', 'properties': {'global': {'type': 'object', 'description': 'Global options applied to all ``distutils`` commands'}}, 'patternProperties': {'.+': {'type': 'object'}}, '$comment': 'TODO: Is there a practical way of making this schema more specific?'}, 'setuptools': {'$schema': 'http://json-schema.org/draft-07/schema#', '$id': 'https://setuptools.pypa.io/en/latest/userguide/pyproject_config.html', 'title': '``tool.setuptools`` table', '$$description': ['``setuptools``-specific configurations that can be set by users that require', 'customization.', 'These configurations are completely optional and probably can be skipped when', 'creating simple packages. They are equivalent to some of the `Keywords', '`_', 'used by the ``setup.py`` file, and can be set via the ``tool.setuptools`` table.', 'It considers only ``setuptools`` `parameters', '`_', 'that are not covered by :pep:`621`; and intentionally excludes ``dependency_links``', 'and ``setup_requires`` (incompatible with modern workflows/standards).'], 'type': 'object', 'additionalProperties': False, 'properties': {'platforms': {'type': 'array', 'items': {'type': 'string'}}, 'provides': {'$$description': ['Package and virtual package names contained within this package', '**(not supported by pip)**'], 'type': 'array', 'items': {'type': 'string', 'format': 'pep508-identifier'}}, 'obsoletes': {'$$description': ['Packages which this package renders obsolete', '**(not supported by pip)**'], 'type': 'array', 'items': {'type': 'string', 'format': 'pep508-identifier'}}, 'zip-safe': {'$$description': ['Whether the project can be safely installed and run from a zip file.', '**OBSOLETE**: only relevant for ``pkg_resources``, ``easy_install`` and', '``setup.py install`` in the context of ``eggs`` (**DEPRECATED**).'], 'type': 'boolean'}, 'script-files': {'$$description': ['Legacy way of defining scripts (entry-points are preferred).', 'Equivalent to the ``script`` keyword in ``setup.py``', '(it was renamed to avoid confusion with entry-point based ``project.scripts``', 'defined in :pep:`621`).', '**DISCOURAGED**: generic script wrappers are tricky and may not work properly.', 'Whenever possible, please use ``project.scripts`` instead.'], 'type': 'array', 'items': {'type': 'string'}, '$comment': 'TODO: is this field deprecated/should be removed?'}, 'eager-resources': {'$$description': ['Resources that should be extracted together, if any of them is needed,', 'or if any C extensions included in the project are imported.', '**OBSOLETE**: only relevant for ``pkg_resources``, ``easy_install`` and', '``setup.py install`` in the context of ``eggs`` (**DEPRECATED**).'], 'type': 'array', 'items': {'type': 'string'}}, 'packages': {'$$description': ['Packages that should be included in the distribution.', 'It can be given either as a list of package identifiers', 'or as a ``dict``-like structure with a single key ``find``', 'which corresponds to a dynamic call to', '``setuptools.config.expand.find_packages`` function.', 'The ``find`` key is associated with a nested ``dict``-like structure that can', 'contain ``where``, ``include``, ``exclude`` and ``namespaces`` keys,', 'mimicking the keyword arguments of the associated function.'], 'oneOf': [{'title': 'Array of Python package identifiers', 'type': 'array', 'items': {'$ref': '#/definitions/package-name'}}, {'$ref': '#/definitions/find-directive'}]}, 'package-dir': {'$$description': [':class:`dict`-like structure mapping from package names to directories where their', 'code can be found.', 'The empty string (as key) means that all packages are contained inside', 'the given directory will be included in the distribution.'], 'type': 'object', 'additionalProperties': False, 'propertyNames': {'anyOf': [{'const': ''}, {'$ref': '#/definitions/package-name'}]}, 'patternProperties': {'^.*$': {'type': 'string'}}}, 'package-data': {'$$description': ['Mapping from package names to lists of glob patterns.', 'Usually this option is not needed when using ``include-package-data = true``', 'For more information on how to include data files, check ``setuptools`` `docs', '`_.'], 'type': 'object', 'additionalProperties': False, 'propertyNames': {'anyOf': [{'type': 'string', 'format': 'python-module-name'}, {'const': '*'}]}, 'patternProperties': {'^.*$': {'type': 'array', 'items': {'type': 'string'}}}}, 'include-package-data': {'$$description': ['Automatically include any data files inside the package directories', 'that are specified by ``MANIFEST.in``', 'For more information on how to include data files, check ``setuptools`` `docs', '`_.'], 'type': 'boolean'}, 'exclude-package-data': {'$$description': ['Mapping from package names to lists of glob patterns that should be excluded', 'For more information on how to include data files, check ``setuptools`` `docs', '`_.'], 'type': 'object', 'additionalProperties': False, 'propertyNames': {'anyOf': [{'type': 'string', 'format': 'python-module-name'}, {'const': '*'}]}, 'patternProperties': {'^.*$': {'type': 'array', 'items': {'type': 'string'}}}}, 'namespace-packages': {'type': 'array', 'items': {'type': 'string', 'format': 'python-module-name-relaxed'}, '$comment': 'https://setuptools.pypa.io/en/latest/userguide/package_discovery.html', 'description': '**DEPRECATED**: use implicit namespaces instead (:pep:`420`).'}, 'py-modules': {'description': 'Modules that setuptools will manipulate', 'type': 'array', 'items': {'type': 'string', 'format': 'python-module-name-relaxed'}, '$comment': 'TODO: clarify the relationship with ``packages``'}, 'ext-modules': {'description': 'Extension modules to be compiled by setuptools', 'type': 'array', 'items': {'$ref': '#/definitions/ext-module'}}, 'data-files': {'$$description': ['``dict``-like structure where each key represents a directory and', 'the value is a list of glob patterns that should be installed in them.', '**DISCOURAGED**: please notice this might not work as expected with wheels.', 'Whenever possible, consider using data files inside the package directories', '(or create a new namespace package that only contains data files).', 'See `data files support', '`_.'], 'type': 'object', 'patternProperties': {'^.*$': {'type': 'array', 'items': {'type': 'string'}}}}, 'cmdclass': {'$$description': ['Mapping of distutils-style command names to ``setuptools.Command`` subclasses', 'which in turn should be represented by strings with a qualified class name', '(i.e., "dotted" form with module), e.g.::\n\n', '    cmdclass = {mycmd = "pkg.subpkg.module.CommandClass"}\n\n', 'The command class should be a directly defined at the top-level of the', 'containing module (no class nesting).'], 'type': 'object', 'patternProperties': {'^.*$': {'type': 'string', 'format': 'python-qualified-identifier'}}}, 'license-files': {'type': 'array', 'items': {'type': 'string'}, '$$description': ['**PROVISIONAL**: list of glob patterns for all license files being distributed.', '(likely to become standard with :pep:`639`).', "By default: ``['LICEN[CS]E*', 'COPYING*', 'NOTICE*', 'AUTHORS*']``"], '$comment': 'TODO: revise if PEP 639 is accepted. Probably ``project.license-files``?'}, 'dynamic': {'type': 'object', 'description': 'Instructions for loading :pep:`621`-related metadata dynamically', 'additionalProperties': False, 'properties': {'version': {'$$description': ['A version dynamically loaded via either the ``attr:`` or ``file:``', 'directives. Please make sure the given file or attribute respects :pep:`440`.', 'Also ensure to set ``project.dynamic`` accordingly.'], 'oneOf': [{'$ref': '#/definitions/attr-directive'}, {'$ref': '#/definitions/file-directive'}]}, 'classifiers': {'$ref': '#/definitions/file-directive'}, 'description': {'$ref': '#/definitions/file-directive'}, 'entry-points': {'$ref': '#/definitions/file-directive'}, 'dependencies': {'$ref': '#/definitions/file-directive-for-dependencies'}, 'optional-dependencies': {'type': 'object', 'propertyNames': {'type': 'string', 'format': 'pep508-identifier'}, 'additionalProperties': False, 'patternProperties': {'.+': {'$ref': '#/definitions/file-directive-for-dependencies'}}}, 'readme': {'type': 'object', 'anyOf': [{'$ref': '#/definitions/file-directive'}, {'type': 'object', 'properties': {'content-type': {'type': 'string'}, 'file': {'$ref': '#/definitions/file-directive/properties/file'}}, 'additionalProperties': False}], 'required': ['file']}}}}, 'definitions': {'package-name': {'$id': '#/definitions/package-name', 'title': 'Valid package name', 'description': 'Valid package name (importable or :pep:`561`).', 'type': 'string', 'anyOf': [{'type': 'string', 'format': 'python-module-name-relaxed'}, {'type': 'string', 'format': 'pep561-stub-name'}]}, 'ext-module': {'$id': '#/definitions/ext-module', 'title': 'Extension module', 'description': 'Parameters to construct a :class:`setuptools.Extension` object', 'type': 'object', 'required': ['name', 'sources'], 'additionalProperties': False, 'properties': {'name': {'type': 'string', 'format': 'python-module-name-relaxed'}, 'sources': {'type': 'array', 'items': {'type': 'string'}}, 'include-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'define-macros': {'type': 'array', 'items': {'type': 'array', 'items': [{'description': 'macro name', 'type': 'string'}, {'description': 'macro value', 'oneOf': [{'type': 'string'}, {'type': 'null'}]}], 'additionalItems': False}}, 'undef-macros': {'type': 'array', 'items': {'type': 'string'}}, 'library-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'libraries': {'type': 'array', 'items': {'type': 'string'}}, 'runtime-library-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'extra-objects': {'type': 'array', 'items': {'type': 'string'}}, 'extra-compile-args': {'type': 'array', 'items': {'type': 'string'}}, 'extra-link-args': {'type': 'array', 'items': {'type': 'string'}}, 'export-symbols': {'type': 'array', 'items': {'type': 'string'}}, 'swig-opts': {'type': 'array', 'items': {'type': 'string'}}, 'depends': {'type': 'array', 'items': {'type': 'string'}}, 'language': {'type': 'string'}, 'optional': {'type': 'boolean'}, 'py-limited-api': {'type': 'boolean'}}}, 'file-directive': {'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}, 'file-directive-for-dependencies': {'title': "'file:' directive for dependencies", 'allOf': [{'$$description': ['**BETA**: subset of the ``requirements.txt`` format', 'without ``pip`` flags and options', '(one :pep:`508`-compliant string per line,', 'lines that are blank or start with ``#`` are excluded).', 'See `dynamic metadata', '`_.']}, {'$ref': '#/definitions/file-directive'}]}, 'attr-directive': {'title': "'attr:' directive", '$id': '#/definitions/attr-directive', '$$description': ['Value is read from a module attribute. Supports callables and iterables;', 'unsupported types are cast via ``str()``'], 'type': 'object', 'additionalProperties': False, 'properties': {'attr': {'type': 'string', 'format': 'python-qualified-identifier'}}, 'required': ['attr']}, 'find-directive': {'$id': '#/definitions/find-directive', 'title': "'find:' directive", 'type': 'object', 'additionalProperties': False, 'properties': {'find': {'type': 'object', '$$description': ['Dynamic `package discovery', '`_.'], 'additionalProperties': False, 'properties': {'where': {'description': 'Directories to be searched for packages (Unix-style relative path)', 'type': 'array', 'items': {'type': 'string'}}, 'exclude': {'type': 'array', '$$description': ['Exclude packages that match the values listed in this field.', "Can container shell-style wildcards (e.g. ``'pkg.*'``)"], 'items': {'type': 'string'}}, 'include': {'type': 'array', '$$description': ['Restrict the found packages to just the ones listed in this field.', "Can container shell-style wildcards (e.g. ``'pkg.*'``)"], 'items': {'type': 'string'}}, 'namespaces': {'type': 'boolean', '$$description': ['When ``True``, directories without a ``__init__.py`` file will also', 'be scanned for :pep:`420`-style implicit namespaces']}}}}}}}}}, rule='type')
+            data__tool_is_dict = isinstance(data__tool, dict)
+            if data__tool_is_dict:
+                data__tool_keys = set(data__tool.keys())
+                if "distutils" in data__tool_keys:
+                    data__tool_keys.remove("distutils")
+                    data__tool__distutils = data__tool["distutils"]
+                    validate_https___setuptools_pypa_io_en_latest_deprecated_distutils_configfile_html(data__tool__distutils, custom_formats, (name_prefix or "data") + ".tool.distutils")
+                if "setuptools" in data__tool_keys:
+                    data__tool_keys.remove("setuptools")
+                    data__tool__setuptools = data__tool["setuptools"]
+                    validate_https___setuptools_pypa_io_en_latest_userguide_pyproject_config_html(data__tool__setuptools, custom_formats, (name_prefix or "data") + ".tool.setuptools")
+        if "dependency-groups" in data_keys:
+            data_keys.remove("dependency-groups")
+            data__dependencygroups = data["dependency-groups"]
+            if not isinstance(data__dependencygroups, (dict)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".dependency-groups must be object", value=data__dependencygroups, name="" + (name_prefix or "data") + ".dependency-groups", definition={'type': 'object', 'description': 'Dependency groups following PEP 735', 'additionalProperties': False, 'patternProperties': {'^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9._-]*[a-zA-Z0-9])$': {'type': 'array', 'items': {'oneOf': [{'type': 'string', 'description': 'Python package specifiers following PEP 508', 'format': 'pep508'}, {'type': 'object', 'additionalProperties': False, 'properties': {'include-group': {'description': 'Another dependency group to include in this one', 'type': 'string', 'pattern': '^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9._-]*[a-zA-Z0-9])$'}}}]}}}}, rule='type')
+            data__dependencygroups_is_dict = isinstance(data__dependencygroups, dict)
+            if data__dependencygroups_is_dict:
+                data__dependencygroups_keys = set(data__dependencygroups.keys())
+                for data__dependencygroups_key, data__dependencygroups_val in data__dependencygroups.items():
+                    if REGEX_PATTERNS['^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9._-]*[a-zA-Z0-9])$'].search(data__dependencygroups_key):
+                        if data__dependencygroups_key in data__dependencygroups_keys:
+                            data__dependencygroups_keys.remove(data__dependencygroups_key)
+                        if not isinstance(data__dependencygroups_val, (list, tuple)):
+                            raise JsonSchemaValueException("" + (name_prefix or "data") + ".dependency-groups.{data__dependencygroups_key}".format(**locals()) + " must be array", value=data__dependencygroups_val, name="" + (name_prefix or "data") + ".dependency-groups.{data__dependencygroups_key}".format(**locals()) + "", definition={'type': 'array', 'items': {'oneOf': [{'type': 'string', 'description': 'Python package specifiers following PEP 508', 'format': 'pep508'}, {'type': 'object', 'additionalProperties': False, 'properties': {'include-group': {'description': 'Another dependency group to include in this one', 'type': 'string', 'pattern': '^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9._-]*[a-zA-Z0-9])$'}}}]}}, rule='type')
+                        data__dependencygroups_val_is_list = isinstance(data__dependencygroups_val, (list, tuple))
+                        if data__dependencygroups_val_is_list:
+                            data__dependencygroups_val_len = len(data__dependencygroups_val)
+                            for data__dependencygroups_val_x, data__dependencygroups_val_item in enumerate(data__dependencygroups_val):
+                                data__dependencygroups_val_item_one_of_count1 = 0
+                                if data__dependencygroups_val_item_one_of_count1 < 2:
+                                    try:
+                                        if not isinstance(data__dependencygroups_val_item, (str)):
+                                            raise JsonSchemaValueException("" + (name_prefix or "data") + ".dependency-groups.{data__dependencygroups_key}[{data__dependencygroups_val_x}]".format(**locals()) + " must be string", value=data__dependencygroups_val_item, name="" + (name_prefix or "data") + ".dependency-groups.{data__dependencygroups_key}[{data__dependencygroups_val_x}]".format(**locals()) + "", definition={'type': 'string', 'description': 'Python package specifiers following PEP 508', 'format': 'pep508'}, rule='type')
+                                        if isinstance(data__dependencygroups_val_item, str):
+                                            if not custom_formats["pep508"](data__dependencygroups_val_item):
+                                                raise JsonSchemaValueException("" + (name_prefix or "data") + ".dependency-groups.{data__dependencygroups_key}[{data__dependencygroups_val_x}]".format(**locals()) + " must be pep508", value=data__dependencygroups_val_item, name="" + (name_prefix or "data") + ".dependency-groups.{data__dependencygroups_key}[{data__dependencygroups_val_x}]".format(**locals()) + "", definition={'type': 'string', 'description': 'Python package specifiers following PEP 508', 'format': 'pep508'}, rule='format')
+                                        data__dependencygroups_val_item_one_of_count1 += 1
+                                    except JsonSchemaValueException: pass
+                                if data__dependencygroups_val_item_one_of_count1 < 2:
+                                    try:
+                                        if not isinstance(data__dependencygroups_val_item, (dict)):
+                                            raise JsonSchemaValueException("" + (name_prefix or "data") + ".dependency-groups.{data__dependencygroups_key}[{data__dependencygroups_val_x}]".format(**locals()) + " must be object", value=data__dependencygroups_val_item, name="" + (name_prefix or "data") + ".dependency-groups.{data__dependencygroups_key}[{data__dependencygroups_val_x}]".format(**locals()) + "", definition={'type': 'object', 'additionalProperties': False, 'properties': {'include-group': {'description': 'Another dependency group to include in this one', 'type': 'string', 'pattern': '^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9._-]*[a-zA-Z0-9])$'}}}, rule='type')
+                                        data__dependencygroups_val_item_is_dict = isinstance(data__dependencygroups_val_item, dict)
+                                        if data__dependencygroups_val_item_is_dict:
+                                            data__dependencygroups_val_item_keys = set(data__dependencygroups_val_item.keys())
+                                            if "include-group" in data__dependencygroups_val_item_keys:
+                                                data__dependencygroups_val_item_keys.remove("include-group")
+                                                data__dependencygroups_val_item__includegroup = data__dependencygroups_val_item["include-group"]
+                                                if not isinstance(data__dependencygroups_val_item__includegroup, (str)):
+                                                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".dependency-groups.{data__dependencygroups_key}[{data__dependencygroups_val_x}].include-group".format(**locals()) + " must be string", value=data__dependencygroups_val_item__includegroup, name="" + (name_prefix or "data") + ".dependency-groups.{data__dependencygroups_key}[{data__dependencygroups_val_x}].include-group".format(**locals()) + "", definition={'description': 'Another dependency group to include in this one', 'type': 'string', 'pattern': '^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9._-]*[a-zA-Z0-9])$'}, rule='type')
+                                                if isinstance(data__dependencygroups_val_item__includegroup, str):
+                                                    if not REGEX_PATTERNS['^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9._-]*[a-zA-Z0-9])$'].search(data__dependencygroups_val_item__includegroup):
+                                                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".dependency-groups.{data__dependencygroups_key}[{data__dependencygroups_val_x}].include-group".format(**locals()) + " must match pattern ^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9._-]*[a-zA-Z0-9])$", value=data__dependencygroups_val_item__includegroup, name="" + (name_prefix or "data") + ".dependency-groups.{data__dependencygroups_key}[{data__dependencygroups_val_x}].include-group".format(**locals()) + "", definition={'description': 'Another dependency group to include in this one', 'type': 'string', 'pattern': '^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9._-]*[a-zA-Z0-9])$'}, rule='pattern')
+                                            if data__dependencygroups_val_item_keys:
+                                                raise JsonSchemaValueException("" + (name_prefix or "data") + ".dependency-groups.{data__dependencygroups_key}[{data__dependencygroups_val_x}]".format(**locals()) + " must not contain "+str(data__dependencygroups_val_item_keys)+" properties", value=data__dependencygroups_val_item, name="" + (name_prefix or "data") + ".dependency-groups.{data__dependencygroups_key}[{data__dependencygroups_val_x}]".format(**locals()) + "", definition={'type': 'object', 'additionalProperties': False, 'properties': {'include-group': {'description': 'Another dependency group to include in this one', 'type': 'string', 'pattern': '^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9._-]*[a-zA-Z0-9])$'}}}, rule='additionalProperties')
+                                        data__dependencygroups_val_item_one_of_count1 += 1
+                                    except JsonSchemaValueException: pass
+                                if data__dependencygroups_val_item_one_of_count1 != 1:
+                                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".dependency-groups.{data__dependencygroups_key}[{data__dependencygroups_val_x}]".format(**locals()) + " must be valid exactly by one definition" + (" (" + str(data__dependencygroups_val_item_one_of_count1) + " matches found)"), value=data__dependencygroups_val_item, name="" + (name_prefix or "data") + ".dependency-groups.{data__dependencygroups_key}[{data__dependencygroups_val_x}]".format(**locals()) + "", definition={'oneOf': [{'type': 'string', 'description': 'Python package specifiers following PEP 508', 'format': 'pep508'}, {'type': 'object', 'additionalProperties': False, 'properties': {'include-group': {'description': 'Another dependency group to include in this one', 'type': 'string', 'pattern': '^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9._-]*[a-zA-Z0-9])$'}}}]}, rule='oneOf')
+                if data__dependencygroups_keys:
+                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".dependency-groups must not contain "+str(data__dependencygroups_keys)+" properties", value=data__dependencygroups, name="" + (name_prefix or "data") + ".dependency-groups", definition={'type': 'object', 'description': 'Dependency groups following PEP 735', 'additionalProperties': False, 'patternProperties': {'^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9._-]*[a-zA-Z0-9])$': {'type': 'array', 'items': {'oneOf': [{'type': 'string', 'description': 'Python package specifiers following PEP 508', 'format': 'pep508'}, {'type': 'object', 'additionalProperties': False, 'properties': {'include-group': {'description': 'Another dependency group to include in this one', 'type': 'string', 'pattern': '^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9._-]*[a-zA-Z0-9])$'}}}]}}}}, rule='additionalProperties')
+        if data_keys:
+            raise JsonSchemaValueException("" + (name_prefix or "data") + " must not contain "+str(data_keys)+" properties", value=data, name="" + (name_prefix or "data") + "", definition={'$schema': 'http://json-schema.org/draft-07/schema#', '$id': 'https://packaging.python.org/en/latest/specifications/declaring-build-dependencies/', 'title': 'Data structure for ``pyproject.toml`` files', '$$description': ['File format containing build-time configurations for the Python ecosystem. ', ':pep:`517` initially defined a build-system independent format for source trees', 'which was complemented by :pep:`518` to provide a way of specifying dependencies ', 'for building Python projects.', 'Please notice the ``project`` table (as initially defined in  :pep:`621`) is not included', 'in this schema and should be considered separately.'], 'type': 'object', 'additionalProperties': False, 'properties': {'build-system': {'type': 'object', 'description': 'Table used to store build-related data', 'additionalProperties': False, 'properties': {'requires': {'type': 'array', '$$description': ['List of dependencies in the :pep:`508` format required to execute the build', 'system. Please notice that the resulting dependency graph', '**MUST NOT contain cycles**'], 'items': {'type': 'string'}}, 'build-backend': {'type': 'string', 'description': 'Python object that will be used to perform the build according to :pep:`517`', 'format': 'pep517-backend-reference'}, 'backend-path': {'type': 'array', '$$description': ['List of directories to be prepended to ``sys.path`` when loading the', 'back-end, and running its hooks'], 'items': {'type': 'string', '$comment': 'Should be a path (TODO: enforce it with format?)'}}}, 'required': ['requires']}, 'project': {'$schema': 'http://json-schema.org/draft-07/schema#', '$id': 'https://packaging.python.org/en/latest/specifications/pyproject-toml/', 'title': 'Package metadata stored in the ``project`` table', '$$description': ['Data structure for the **project** table inside ``pyproject.toml``', '(as initially defined in :pep:`621`)'], 'type': 'object', 'properties': {'name': {'type': 'string', 'description': 'The name (primary identifier) of the project. MUST be statically defined.', 'format': 'pep508-identifier'}, 'version': {'type': 'string', 'description': 'The version of the project as supported by :pep:`440`.', 'format': 'pep440'}, 'description': {'type': 'string', '$$description': ['The `summary description of the project', '`_']}, 'readme': {'$$description': ['`Full/detailed description of the project in the form of a README', '`_', "with meaning similar to the one defined in `core metadata's Description", '`_'], 'oneOf': [{'type': 'string', '$$description': ['Relative path to a text file (UTF-8) containing the full description', 'of the project. If the file path ends in case-insensitive ``.md`` or', '``.rst`` suffixes, then the content-type is respectively', '``text/markdown`` or ``text/x-rst``']}, {'type': 'object', 'allOf': [{'anyOf': [{'properties': {'file': {'type': 'string', '$$description': ['Relative path to a text file containing the full description', 'of the project.']}}, 'required': ['file']}, {'properties': {'text': {'type': 'string', 'description': 'Full text describing the project.'}}, 'required': ['text']}]}, {'properties': {'content-type': {'type': 'string', '$$description': ['Content-type (:rfc:`1341`) of the full description', '(e.g. ``text/markdown``). The ``charset`` parameter is assumed', 'UTF-8 when not present.'], '$comment': 'TODO: add regex pattern or format?'}}, 'required': ['content-type']}]}]}, 'requires-python': {'type': 'string', 'format': 'pep508-versionspec', '$$description': ['`The Python version requirements of the project', '`_.']}, 'license': {'description': '`Project license `_.', 'oneOf': [{'type': 'string', 'description': 'An SPDX license identifier', 'format': 'SPDX'}, {'type': 'object', 'properties': {'file': {'type': 'string', '$$description': ['Relative path to the file (UTF-8) which contains the license for the', 'project.']}}, 'required': ['file']}, {'type': 'object', 'properties': {'text': {'type': 'string', '$$description': ['The license of the project whose meaning is that of the', '`License field from the core metadata', '`_.']}}, 'required': ['text']}]}, 'license-files': {'description': 'Paths or globs to paths of license files', 'type': 'array', 'items': {'type': 'string'}}, 'authors': {'type': 'array', 'items': {'$ref': '#/definitions/author'}, '$$description': ["The people or organizations considered to be the 'authors' of the project.", 'The exact meaning is open to interpretation (e.g. original or primary authors,', 'current maintainers, or owners of the package).']}, 'maintainers': {'type': 'array', 'items': {'$ref': '#/definitions/author'}, '$$description': ["The people or organizations considered to be the 'maintainers' of the project.", 'Similarly to ``authors``, the exact meaning is open to interpretation.']}, 'keywords': {'type': 'array', 'items': {'type': 'string'}, 'description': 'List of keywords to assist searching for the distribution in a larger catalog.'}, 'classifiers': {'type': 'array', 'items': {'type': 'string', 'format': 'trove-classifier', 'description': '`PyPI classifier `_.'}, '$$description': ['`Trove classifiers `_', 'which apply to the project.']}, 'urls': {'type': 'object', 'description': 'URLs associated with the project in the form ``label => value``.', 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', 'format': 'url'}}}, 'scripts': {'$ref': '#/definitions/entry-point-group', '$$description': ['Instruct the installer to create command-line wrappers for the given', '`entry points `_.']}, 'gui-scripts': {'$ref': '#/definitions/entry-point-group', '$$description': ['Instruct the installer to create GUI wrappers for the given', '`entry points `_.', 'The difference between ``scripts`` and ``gui-scripts`` is only relevant in', 'Windows.']}, 'entry-points': {'$$description': ['Instruct the installer to expose the given modules/functions via', '``entry-point`` discovery mechanism (useful for plugins).', 'More information available in the `Python packaging guide', '`_.'], 'propertyNames': {'format': 'python-entrypoint-group'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'$ref': '#/definitions/entry-point-group'}}}, 'dependencies': {'type': 'array', 'description': 'Project (mandatory) dependencies.', 'items': {'$ref': '#/definitions/dependency'}}, 'optional-dependencies': {'type': 'object', 'description': 'Optional dependency for the project', 'propertyNames': {'format': 'pep508-identifier'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'array', 'items': {'$ref': '#/definitions/dependency'}}}}, 'dynamic': {'type': 'array', '$$description': ['Specifies which fields are intentionally unspecified and expected to be', 'dynamically provided by build tools'], 'items': {'enum': ['version', 'description', 'readme', 'requires-python', 'license', 'license-files', 'authors', 'maintainers', 'keywords', 'classifiers', 'urls', 'scripts', 'gui-scripts', 'entry-points', 'dependencies', 'optional-dependencies']}}}, 'required': ['name'], 'additionalProperties': False, 'allOf': [{'if': {'not': {'required': ['dynamic'], 'properties': {'dynamic': {'contains': {'const': 'version'}, '$$description': ['version is listed in ``dynamic``']}}}, '$$comment': ['According to :pep:`621`:', '    If the core metadata specification lists a field as "Required", then', '    the metadata MUST specify the field statically or list it in dynamic', 'In turn, `core metadata`_ defines:', '    The required fields are: Metadata-Version, Name, Version.', '    All the other fields are optional.', 'Since ``Metadata-Version`` is defined by the build back-end, ``name`` and', '``version`` are the only mandatory information in ``pyproject.toml``.', '.. _core metadata: https://packaging.python.org/specifications/core-metadata/']}, 'then': {'required': ['version'], '$$description': ['version should be statically defined in the ``version`` field']}}, {'if': {'required': ['license-files']}, 'then': {'properties': {'license': {'type': 'string'}}}}], 'definitions': {'author': {'$id': '#/definitions/author', 'title': 'Author or Maintainer', '$comment': 'https://peps.python.org/pep-0621/#authors-maintainers', 'type': 'object', 'additionalProperties': False, 'properties': {'name': {'type': 'string', '$$description': ['MUST be a valid email name, i.e. whatever can be put as a name, before an', 'email, in :rfc:`822`.']}, 'email': {'type': 'string', 'format': 'idn-email', 'description': 'MUST be a valid email address'}}}, 'entry-point-group': {'$id': '#/definitions/entry-point-group', 'title': 'Entry-points', 'type': 'object', '$$description': ['Entry-points are grouped together to indicate what sort of capabilities they', 'provide.', 'See the `packaging guides', '`_', 'and `setuptools docs', '`_', 'for more information.'], 'propertyNames': {'format': 'python-entrypoint-name'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', '$$description': ['Reference to a Python object. It is either in the form', '``importable.module``, or ``importable.module:object.attr``.'], 'format': 'python-entrypoint-reference', '$comment': 'https://packaging.python.org/specifications/entry-points/'}}}, 'dependency': {'$id': '#/definitions/dependency', 'title': 'Dependency', 'type': 'string', 'description': 'Project dependency specification according to PEP 508', 'format': 'pep508'}}}, 'tool': {'type': 'object', 'properties': {'distutils': {'$schema': 'http://json-schema.org/draft-07/schema#', '$id': 'https://setuptools.pypa.io/en/latest/deprecated/distutils/configfile.html', 'title': '``tool.distutils`` table', '$$description': ['**EXPERIMENTAL** (NOT OFFICIALLY SUPPORTED): Use ``tool.distutils``', 'subtables to configure arguments for ``distutils`` commands.', 'Originally, ``distutils`` allowed developers to configure arguments for', '``setup.py`` commands via `distutils configuration files', '`_.', 'See also `the old Python docs _`.'], 'type': 'object', 'properties': {'global': {'type': 'object', 'description': 'Global options applied to all ``distutils`` commands'}}, 'patternProperties': {'.+': {'type': 'object'}}, '$comment': 'TODO: Is there a practical way of making this schema more specific?'}, 'setuptools': {'$schema': 'http://json-schema.org/draft-07/schema#', '$id': 'https://setuptools.pypa.io/en/latest/userguide/pyproject_config.html', 'title': '``tool.setuptools`` table', '$$description': ['``setuptools``-specific configurations that can be set by users that require', 'customization.', 'These configurations are completely optional and probably can be skipped when', 'creating simple packages. They are equivalent to some of the `Keywords', '`_', 'used by the ``setup.py`` file, and can be set via the ``tool.setuptools`` table.', 'It considers only ``setuptools`` `parameters', '`_', 'that are not covered by :pep:`621`; and intentionally excludes ``dependency_links``', 'and ``setup_requires`` (incompatible with modern workflows/standards).'], 'type': 'object', 'additionalProperties': False, 'properties': {'platforms': {'type': 'array', 'items': {'type': 'string'}}, 'provides': {'$$description': ['Package and virtual package names contained within this package', '**(not supported by pip)**'], 'type': 'array', 'items': {'type': 'string', 'format': 'pep508-identifier'}}, 'obsoletes': {'$$description': ['Packages which this package renders obsolete', '**(not supported by pip)**'], 'type': 'array', 'items': {'type': 'string', 'format': 'pep508-identifier'}}, 'zip-safe': {'$$description': ['Whether the project can be safely installed and run from a zip file.', '**OBSOLETE**: only relevant for ``pkg_resources``, ``easy_install`` and', '``setup.py install`` in the context of ``eggs`` (**DEPRECATED**).'], 'type': 'boolean'}, 'script-files': {'$$description': ['Legacy way of defining scripts (entry-points are preferred).', 'Equivalent to the ``script`` keyword in ``setup.py``', '(it was renamed to avoid confusion with entry-point based ``project.scripts``', 'defined in :pep:`621`).', '**DISCOURAGED**: generic script wrappers are tricky and may not work properly.', 'Whenever possible, please use ``project.scripts`` instead.'], 'type': 'array', 'items': {'type': 'string'}, '$comment': 'TODO: is this field deprecated/should be removed?'}, 'eager-resources': {'$$description': ['Resources that should be extracted together, if any of them is needed,', 'or if any C extensions included in the project are imported.', '**OBSOLETE**: only relevant for ``pkg_resources``, ``easy_install`` and', '``setup.py install`` in the context of ``eggs`` (**DEPRECATED**).'], 'type': 'array', 'items': {'type': 'string'}}, 'packages': {'$$description': ['Packages that should be included in the distribution.', 'It can be given either as a list of package identifiers', 'or as a ``dict``-like structure with a single key ``find``', 'which corresponds to a dynamic call to', '``setuptools.config.expand.find_packages`` function.', 'The ``find`` key is associated with a nested ``dict``-like structure that can', 'contain ``where``, ``include``, ``exclude`` and ``namespaces`` keys,', 'mimicking the keyword arguments of the associated function.'], 'oneOf': [{'title': 'Array of Python package identifiers', 'type': 'array', 'items': {'$ref': '#/definitions/package-name'}}, {'$ref': '#/definitions/find-directive'}]}, 'package-dir': {'$$description': [':class:`dict`-like structure mapping from package names to directories where their', 'code can be found.', 'The empty string (as key) means that all packages are contained inside', 'the given directory will be included in the distribution.'], 'type': 'object', 'additionalProperties': False, 'propertyNames': {'anyOf': [{'const': ''}, {'$ref': '#/definitions/package-name'}]}, 'patternProperties': {'^.*$': {'type': 'string'}}}, 'package-data': {'$$description': ['Mapping from package names to lists of glob patterns.', 'Usually this option is not needed when using ``include-package-data = true``', 'For more information on how to include data files, check ``setuptools`` `docs', '`_.'], 'type': 'object', 'additionalProperties': False, 'propertyNames': {'anyOf': [{'type': 'string', 'format': 'python-module-name'}, {'const': '*'}]}, 'patternProperties': {'^.*$': {'type': 'array', 'items': {'type': 'string'}}}}, 'include-package-data': {'$$description': ['Automatically include any data files inside the package directories', 'that are specified by ``MANIFEST.in``', 'For more information on how to include data files, check ``setuptools`` `docs', '`_.'], 'type': 'boolean'}, 'exclude-package-data': {'$$description': ['Mapping from package names to lists of glob patterns that should be excluded', 'For more information on how to include data files, check ``setuptools`` `docs', '`_.'], 'type': 'object', 'additionalProperties': False, 'propertyNames': {'anyOf': [{'type': 'string', 'format': 'python-module-name'}, {'const': '*'}]}, 'patternProperties': {'^.*$': {'type': 'array', 'items': {'type': 'string'}}}}, 'namespace-packages': {'type': 'array', 'items': {'type': 'string', 'format': 'python-module-name-relaxed'}, '$comment': 'https://setuptools.pypa.io/en/latest/userguide/package_discovery.html', 'description': '**DEPRECATED**: use implicit namespaces instead (:pep:`420`).'}, 'py-modules': {'description': 'Modules that setuptools will manipulate', 'type': 'array', 'items': {'type': 'string', 'format': 'python-module-name-relaxed'}, '$comment': 'TODO: clarify the relationship with ``packages``'}, 'ext-modules': {'description': 'Extension modules to be compiled by setuptools', 'type': 'array', 'items': {'$ref': '#/definitions/ext-module'}}, 'data-files': {'$$description': ['``dict``-like structure where each key represents a directory and', 'the value is a list of glob patterns that should be installed in them.', '**DISCOURAGED**: please notice this might not work as expected with wheels.', 'Whenever possible, consider using data files inside the package directories', '(or create a new namespace package that only contains data files).', 'See `data files support', '`_.'], 'type': 'object', 'patternProperties': {'^.*$': {'type': 'array', 'items': {'type': 'string'}}}}, 'cmdclass': {'$$description': ['Mapping of distutils-style command names to ``setuptools.Command`` subclasses', 'which in turn should be represented by strings with a qualified class name', '(i.e., "dotted" form with module), e.g.::\n\n', '    cmdclass = {mycmd = "pkg.subpkg.module.CommandClass"}\n\n', 'The command class should be a directly defined at the top-level of the', 'containing module (no class nesting).'], 'type': 'object', 'patternProperties': {'^.*$': {'type': 'string', 'format': 'python-qualified-identifier'}}}, 'license-files': {'type': 'array', 'items': {'type': 'string'}, '$$description': ['**PROVISIONAL**: list of glob patterns for all license files being distributed.', '(likely to become standard with :pep:`639`).', "By default: ``['LICEN[CS]E*', 'COPYING*', 'NOTICE*', 'AUTHORS*']``"], '$comment': 'TODO: revise if PEP 639 is accepted. Probably ``project.license-files``?'}, 'dynamic': {'type': 'object', 'description': 'Instructions for loading :pep:`621`-related metadata dynamically', 'additionalProperties': False, 'properties': {'version': {'$$description': ['A version dynamically loaded via either the ``attr:`` or ``file:``', 'directives. Please make sure the given file or attribute respects :pep:`440`.', 'Also ensure to set ``project.dynamic`` accordingly.'], 'oneOf': [{'$ref': '#/definitions/attr-directive'}, {'$ref': '#/definitions/file-directive'}]}, 'classifiers': {'$ref': '#/definitions/file-directive'}, 'description': {'$ref': '#/definitions/file-directive'}, 'entry-points': {'$ref': '#/definitions/file-directive'}, 'dependencies': {'$ref': '#/definitions/file-directive-for-dependencies'}, 'optional-dependencies': {'type': 'object', 'propertyNames': {'type': 'string', 'format': 'pep508-identifier'}, 'additionalProperties': False, 'patternProperties': {'.+': {'$ref': '#/definitions/file-directive-for-dependencies'}}}, 'readme': {'type': 'object', 'anyOf': [{'$ref': '#/definitions/file-directive'}, {'type': 'object', 'properties': {'content-type': {'type': 'string'}, 'file': {'$ref': '#/definitions/file-directive/properties/file'}}, 'additionalProperties': False}], 'required': ['file']}}}}, 'definitions': {'package-name': {'$id': '#/definitions/package-name', 'title': 'Valid package name', 'description': 'Valid package name (importable or :pep:`561`).', 'type': 'string', 'anyOf': [{'type': 'string', 'format': 'python-module-name-relaxed'}, {'type': 'string', 'format': 'pep561-stub-name'}]}, 'ext-module': {'$id': '#/definitions/ext-module', 'title': 'Extension module', 'description': 'Parameters to construct a :class:`setuptools.Extension` object', 'type': 'object', 'required': ['name', 'sources'], 'additionalProperties': False, 'properties': {'name': {'type': 'string', 'format': 'python-module-name-relaxed'}, 'sources': {'type': 'array', 'items': {'type': 'string'}}, 'include-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'define-macros': {'type': 'array', 'items': {'type': 'array', 'items': [{'description': 'macro name', 'type': 'string'}, {'description': 'macro value', 'oneOf': [{'type': 'string'}, {'type': 'null'}]}], 'additionalItems': False}}, 'undef-macros': {'type': 'array', 'items': {'type': 'string'}}, 'library-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'libraries': {'type': 'array', 'items': {'type': 'string'}}, 'runtime-library-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'extra-objects': {'type': 'array', 'items': {'type': 'string'}}, 'extra-compile-args': {'type': 'array', 'items': {'type': 'string'}}, 'extra-link-args': {'type': 'array', 'items': {'type': 'string'}}, 'export-symbols': {'type': 'array', 'items': {'type': 'string'}}, 'swig-opts': {'type': 'array', 'items': {'type': 'string'}}, 'depends': {'type': 'array', 'items': {'type': 'string'}}, 'language': {'type': 'string'}, 'optional': {'type': 'boolean'}, 'py-limited-api': {'type': 'boolean'}}}, 'file-directive': {'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}, 'file-directive-for-dependencies': {'title': "'file:' directive for dependencies", 'allOf': [{'$$description': ['**BETA**: subset of the ``requirements.txt`` format', 'without ``pip`` flags and options', '(one :pep:`508`-compliant string per line,', 'lines that are blank or start with ``#`` are excluded).', 'See `dynamic metadata', '`_.']}, {'$ref': '#/definitions/file-directive'}]}, 'attr-directive': {'title': "'attr:' directive", '$id': '#/definitions/attr-directive', '$$description': ['Value is read from a module attribute. Supports callables and iterables;', 'unsupported types are cast via ``str()``'], 'type': 'object', 'additionalProperties': False, 'properties': {'attr': {'type': 'string', 'format': 'python-qualified-identifier'}}, 'required': ['attr']}, 'find-directive': {'$id': '#/definitions/find-directive', 'title': "'find:' directive", 'type': 'object', 'additionalProperties': False, 'properties': {'find': {'type': 'object', '$$description': ['Dynamic `package discovery', '`_.'], 'additionalProperties': False, 'properties': {'where': {'description': 'Directories to be searched for packages (Unix-style relative path)', 'type': 'array', 'items': {'type': 'string'}}, 'exclude': {'type': 'array', '$$description': ['Exclude packages that match the values listed in this field.', "Can container shell-style wildcards (e.g. ``'pkg.*'``)"], 'items': {'type': 'string'}}, 'include': {'type': 'array', '$$description': ['Restrict the found packages to just the ones listed in this field.', "Can container shell-style wildcards (e.g. ``'pkg.*'``)"], 'items': {'type': 'string'}}, 'namespaces': {'type': 'boolean', '$$description': ['When ``True``, directories without a ``__init__.py`` file will also', 'be scanned for :pep:`420`-style implicit namespaces']}}}}}}}}}, 'dependency-groups': {'type': 'object', 'description': 'Dependency groups following PEP 735', 'additionalProperties': False, 'patternProperties': {'^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9._-]*[a-zA-Z0-9])$': {'type': 'array', 'items': {'oneOf': [{'type': 'string', 'description': 'Python package specifiers following PEP 508', 'format': 'pep508'}, {'type': 'object', 'additionalProperties': False, 'properties': {'include-group': {'description': 'Another dependency group to include in this one', 'type': 'string', 'pattern': '^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9._-]*[a-zA-Z0-9])$'}}}]}}}}}, 'project': {'$schema': 'http://json-schema.org/draft-07/schema#', '$id': 'https://packaging.python.org/en/latest/specifications/pyproject-toml/', 'title': 'Package metadata stored in the ``project`` table', '$$description': ['Data structure for the **project** table inside ``pyproject.toml``', '(as initially defined in :pep:`621`)'], 'type': 'object', 'properties': {'name': {'type': 'string', 'description': 'The name (primary identifier) of the project. MUST be statically defined.', 'format': 'pep508-identifier'}, 'version': {'type': 'string', 'description': 'The version of the project as supported by :pep:`440`.', 'format': 'pep440'}, 'description': {'type': 'string', '$$description': ['The `summary description of the project', '`_']}, 'readme': {'$$description': ['`Full/detailed description of the project in the form of a README', '`_', "with meaning similar to the one defined in `core metadata's Description", '`_'], 'oneOf': [{'type': 'string', '$$description': ['Relative path to a text file (UTF-8) containing the full description', 'of the project. If the file path ends in case-insensitive ``.md`` or', '``.rst`` suffixes, then the content-type is respectively', '``text/markdown`` or ``text/x-rst``']}, {'type': 'object', 'allOf': [{'anyOf': [{'properties': {'file': {'type': 'string', '$$description': ['Relative path to a text file containing the full description', 'of the project.']}}, 'required': ['file']}, {'properties': {'text': {'type': 'string', 'description': 'Full text describing the project.'}}, 'required': ['text']}]}, {'properties': {'content-type': {'type': 'string', '$$description': ['Content-type (:rfc:`1341`) of the full description', '(e.g. ``text/markdown``). The ``charset`` parameter is assumed', 'UTF-8 when not present.'], '$comment': 'TODO: add regex pattern or format?'}}, 'required': ['content-type']}]}]}, 'requires-python': {'type': 'string', 'format': 'pep508-versionspec', '$$description': ['`The Python version requirements of the project', '`_.']}, 'license': {'description': '`Project license `_.', 'oneOf': [{'type': 'string', 'description': 'An SPDX license identifier', 'format': 'SPDX'}, {'type': 'object', 'properties': {'file': {'type': 'string', '$$description': ['Relative path to the file (UTF-8) which contains the license for the', 'project.']}}, 'required': ['file']}, {'type': 'object', 'properties': {'text': {'type': 'string', '$$description': ['The license of the project whose meaning is that of the', '`License field from the core metadata', '`_.']}}, 'required': ['text']}]}, 'license-files': {'description': 'Paths or globs to paths of license files', 'type': 'array', 'items': {'type': 'string'}}, 'authors': {'type': 'array', 'items': {'$ref': '#/definitions/author'}, '$$description': ["The people or organizations considered to be the 'authors' of the project.", 'The exact meaning is open to interpretation (e.g. original or primary authors,', 'current maintainers, or owners of the package).']}, 'maintainers': {'type': 'array', 'items': {'$ref': '#/definitions/author'}, '$$description': ["The people or organizations considered to be the 'maintainers' of the project.", 'Similarly to ``authors``, the exact meaning is open to interpretation.']}, 'keywords': {'type': 'array', 'items': {'type': 'string'}, 'description': 'List of keywords to assist searching for the distribution in a larger catalog.'}, 'classifiers': {'type': 'array', 'items': {'type': 'string', 'format': 'trove-classifier', 'description': '`PyPI classifier `_.'}, '$$description': ['`Trove classifiers `_', 'which apply to the project.']}, 'urls': {'type': 'object', 'description': 'URLs associated with the project in the form ``label => value``.', 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', 'format': 'url'}}}, 'scripts': {'$ref': '#/definitions/entry-point-group', '$$description': ['Instruct the installer to create command-line wrappers for the given', '`entry points `_.']}, 'gui-scripts': {'$ref': '#/definitions/entry-point-group', '$$description': ['Instruct the installer to create GUI wrappers for the given', '`entry points `_.', 'The difference between ``scripts`` and ``gui-scripts`` is only relevant in', 'Windows.']}, 'entry-points': {'$$description': ['Instruct the installer to expose the given modules/functions via', '``entry-point`` discovery mechanism (useful for plugins).', 'More information available in the `Python packaging guide', '`_.'], 'propertyNames': {'format': 'python-entrypoint-group'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'$ref': '#/definitions/entry-point-group'}}}, 'dependencies': {'type': 'array', 'description': 'Project (mandatory) dependencies.', 'items': {'$ref': '#/definitions/dependency'}}, 'optional-dependencies': {'type': 'object', 'description': 'Optional dependency for the project', 'propertyNames': {'format': 'pep508-identifier'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'array', 'items': {'$ref': '#/definitions/dependency'}}}}, 'dynamic': {'type': 'array', '$$description': ['Specifies which fields are intentionally unspecified and expected to be', 'dynamically provided by build tools'], 'items': {'enum': ['version', 'description', 'readme', 'requires-python', 'license', 'license-files', 'authors', 'maintainers', 'keywords', 'classifiers', 'urls', 'scripts', 'gui-scripts', 'entry-points', 'dependencies', 'optional-dependencies']}}}, 'required': ['name'], 'additionalProperties': False, 'allOf': [{'if': {'not': {'required': ['dynamic'], 'properties': {'dynamic': {'contains': {'const': 'version'}, '$$description': ['version is listed in ``dynamic``']}}}, '$$comment': ['According to :pep:`621`:', '    If the core metadata specification lists a field as "Required", then', '    the metadata MUST specify the field statically or list it in dynamic', 'In turn, `core metadata`_ defines:', '    The required fields are: Metadata-Version, Name, Version.', '    All the other fields are optional.', 'Since ``Metadata-Version`` is defined by the build back-end, ``name`` and', '``version`` are the only mandatory information in ``pyproject.toml``.', '.. _core metadata: https://packaging.python.org/specifications/core-metadata/']}, 'then': {'required': ['version'], '$$description': ['version should be statically defined in the ``version`` field']}}, {'if': {'required': ['license-files']}, 'then': {'properties': {'license': {'type': 'string'}}}}], 'definitions': {'author': {'$id': '#/definitions/author', 'title': 'Author or Maintainer', '$comment': 'https://peps.python.org/pep-0621/#authors-maintainers', 'type': 'object', 'additionalProperties': False, 'properties': {'name': {'type': 'string', '$$description': ['MUST be a valid email name, i.e. whatever can be put as a name, before an', 'email, in :rfc:`822`.']}, 'email': {'type': 'string', 'format': 'idn-email', 'description': 'MUST be a valid email address'}}}, 'entry-point-group': {'$id': '#/definitions/entry-point-group', 'title': 'Entry-points', 'type': 'object', '$$description': ['Entry-points are grouped together to indicate what sort of capabilities they', 'provide.', 'See the `packaging guides', '`_', 'and `setuptools docs', '`_', 'for more information.'], 'propertyNames': {'format': 'python-entrypoint-name'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', '$$description': ['Reference to a Python object. It is either in the form', '``importable.module``, or ``importable.module:object.attr``.'], 'format': 'python-entrypoint-reference', '$comment': 'https://packaging.python.org/specifications/entry-points/'}}}, 'dependency': {'$id': '#/definitions/dependency', 'title': 'Dependency', 'type': 'string', 'description': 'Project dependency specification according to PEP 508', 'format': 'pep508'}}}}, rule='additionalProperties')
+    return data
+
+def validate_https___setuptools_pypa_io_en_latest_userguide_pyproject_config_html(data, custom_formats={}, name_prefix=None):
+    if not isinstance(data, (dict)):
+        raise JsonSchemaValueException("" + (name_prefix or "data") + " must be object", value=data, name="" + (name_prefix or "data") + "", definition={'$schema': 'http://json-schema.org/draft-07/schema#', '$id': 'https://setuptools.pypa.io/en/latest/userguide/pyproject_config.html', 'title': '``tool.setuptools`` table', '$$description': ['``setuptools``-specific configurations that can be set by users that require', 'customization.', 'These configurations are completely optional and probably can be skipped when', 'creating simple packages. They are equivalent to some of the `Keywords', '`_', 'used by the ``setup.py`` file, and can be set via the ``tool.setuptools`` table.', 'It considers only ``setuptools`` `parameters', '`_', 'that are not covered by :pep:`621`; and intentionally excludes ``dependency_links``', 'and ``setup_requires`` (incompatible with modern workflows/standards).'], 'type': 'object', 'additionalProperties': False, 'properties': {'platforms': {'type': 'array', 'items': {'type': 'string'}}, 'provides': {'$$description': ['Package and virtual package names contained within this package', '**(not supported by pip)**'], 'type': 'array', 'items': {'type': 'string', 'format': 'pep508-identifier'}}, 'obsoletes': {'$$description': ['Packages which this package renders obsolete', '**(not supported by pip)**'], 'type': 'array', 'items': {'type': 'string', 'format': 'pep508-identifier'}}, 'zip-safe': {'$$description': ['Whether the project can be safely installed and run from a zip file.', '**OBSOLETE**: only relevant for ``pkg_resources``, ``easy_install`` and', '``setup.py install`` in the context of ``eggs`` (**DEPRECATED**).'], 'type': 'boolean'}, 'script-files': {'$$description': ['Legacy way of defining scripts (entry-points are preferred).', 'Equivalent to the ``script`` keyword in ``setup.py``', '(it was renamed to avoid confusion with entry-point based ``project.scripts``', 'defined in :pep:`621`).', '**DISCOURAGED**: generic script wrappers are tricky and may not work properly.', 'Whenever possible, please use ``project.scripts`` instead.'], 'type': 'array', 'items': {'type': 'string'}, '$comment': 'TODO: is this field deprecated/should be removed?'}, 'eager-resources': {'$$description': ['Resources that should be extracted together, if any of them is needed,', 'or if any C extensions included in the project are imported.', '**OBSOLETE**: only relevant for ``pkg_resources``, ``easy_install`` and', '``setup.py install`` in the context of ``eggs`` (**DEPRECATED**).'], 'type': 'array', 'items': {'type': 'string'}}, 'packages': {'$$description': ['Packages that should be included in the distribution.', 'It can be given either as a list of package identifiers', 'or as a ``dict``-like structure with a single key ``find``', 'which corresponds to a dynamic call to', '``setuptools.config.expand.find_packages`` function.', 'The ``find`` key is associated with a nested ``dict``-like structure that can', 'contain ``where``, ``include``, ``exclude`` and ``namespaces`` keys,', 'mimicking the keyword arguments of the associated function.'], 'oneOf': [{'title': 'Array of Python package identifiers', 'type': 'array', 'items': {'$id': '#/definitions/package-name', 'title': 'Valid package name', 'description': 'Valid package name (importable or :pep:`561`).', 'type': 'string', 'anyOf': [{'type': 'string', 'format': 'python-module-name-relaxed'}, {'type': 'string', 'format': 'pep561-stub-name'}]}}, {'$id': '#/definitions/find-directive', 'title': "'find:' directive", 'type': 'object', 'additionalProperties': False, 'properties': {'find': {'type': 'object', '$$description': ['Dynamic `package discovery', '`_.'], 'additionalProperties': False, 'properties': {'where': {'description': 'Directories to be searched for packages (Unix-style relative path)', 'type': 'array', 'items': {'type': 'string'}}, 'exclude': {'type': 'array', '$$description': ['Exclude packages that match the values listed in this field.', "Can container shell-style wildcards (e.g. ``'pkg.*'``)"], 'items': {'type': 'string'}}, 'include': {'type': 'array', '$$description': ['Restrict the found packages to just the ones listed in this field.', "Can container shell-style wildcards (e.g. ``'pkg.*'``)"], 'items': {'type': 'string'}}, 'namespaces': {'type': 'boolean', '$$description': ['When ``True``, directories without a ``__init__.py`` file will also', 'be scanned for :pep:`420`-style implicit namespaces']}}}}}]}, 'package-dir': {'$$description': [':class:`dict`-like structure mapping from package names to directories where their', 'code can be found.', 'The empty string (as key) means that all packages are contained inside', 'the given directory will be included in the distribution.'], 'type': 'object', 'additionalProperties': False, 'propertyNames': {'anyOf': [{'const': ''}, {'$id': '#/definitions/package-name', 'title': 'Valid package name', 'description': 'Valid package name (importable or :pep:`561`).', 'type': 'string', 'anyOf': [{'type': 'string', 'format': 'python-module-name-relaxed'}, {'type': 'string', 'format': 'pep561-stub-name'}]}]}, 'patternProperties': {'^.*$': {'type': 'string'}}}, 'package-data': {'$$description': ['Mapping from package names to lists of glob patterns.', 'Usually this option is not needed when using ``include-package-data = true``', 'For more information on how to include data files, check ``setuptools`` `docs', '`_.'], 'type': 'object', 'additionalProperties': False, 'propertyNames': {'anyOf': [{'type': 'string', 'format': 'python-module-name'}, {'const': '*'}]}, 'patternProperties': {'^.*$': {'type': 'array', 'items': {'type': 'string'}}}}, 'include-package-data': {'$$description': ['Automatically include any data files inside the package directories', 'that are specified by ``MANIFEST.in``', 'For more information on how to include data files, check ``setuptools`` `docs', '`_.'], 'type': 'boolean'}, 'exclude-package-data': {'$$description': ['Mapping from package names to lists of glob patterns that should be excluded', 'For more information on how to include data files, check ``setuptools`` `docs', '`_.'], 'type': 'object', 'additionalProperties': False, 'propertyNames': {'anyOf': [{'type': 'string', 'format': 'python-module-name'}, {'const': '*'}]}, 'patternProperties': {'^.*$': {'type': 'array', 'items': {'type': 'string'}}}}, 'namespace-packages': {'type': 'array', 'items': {'type': 'string', 'format': 'python-module-name-relaxed'}, '$comment': 'https://setuptools.pypa.io/en/latest/userguide/package_discovery.html', 'description': '**DEPRECATED**: use implicit namespaces instead (:pep:`420`).'}, 'py-modules': {'description': 'Modules that setuptools will manipulate', 'type': 'array', 'items': {'type': 'string', 'format': 'python-module-name-relaxed'}, '$comment': 'TODO: clarify the relationship with ``packages``'}, 'ext-modules': {'description': 'Extension modules to be compiled by setuptools', 'type': 'array', 'items': {'$id': '#/definitions/ext-module', 'title': 'Extension module', 'description': 'Parameters to construct a :class:`setuptools.Extension` object', 'type': 'object', 'required': ['name', 'sources'], 'additionalProperties': False, 'properties': {'name': {'type': 'string', 'format': 'python-module-name-relaxed'}, 'sources': {'type': 'array', 'items': {'type': 'string'}}, 'include-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'define-macros': {'type': 'array', 'items': {'type': 'array', 'items': [{'description': 'macro name', 'type': 'string'}, {'description': 'macro value', 'oneOf': [{'type': 'string'}, {'type': 'null'}]}], 'additionalItems': False}}, 'undef-macros': {'type': 'array', 'items': {'type': 'string'}}, 'library-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'libraries': {'type': 'array', 'items': {'type': 'string'}}, 'runtime-library-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'extra-objects': {'type': 'array', 'items': {'type': 'string'}}, 'extra-compile-args': {'type': 'array', 'items': {'type': 'string'}}, 'extra-link-args': {'type': 'array', 'items': {'type': 'string'}}, 'export-symbols': {'type': 'array', 'items': {'type': 'string'}}, 'swig-opts': {'type': 'array', 'items': {'type': 'string'}}, 'depends': {'type': 'array', 'items': {'type': 'string'}}, 'language': {'type': 'string'}, 'optional': {'type': 'boolean'}, 'py-limited-api': {'type': 'boolean'}}}}, 'data-files': {'$$description': ['``dict``-like structure where each key represents a directory and', 'the value is a list of glob patterns that should be installed in them.', '**DISCOURAGED**: please notice this might not work as expected with wheels.', 'Whenever possible, consider using data files inside the package directories', '(or create a new namespace package that only contains data files).', 'See `data files support', '`_.'], 'type': 'object', 'patternProperties': {'^.*$': {'type': 'array', 'items': {'type': 'string'}}}}, 'cmdclass': {'$$description': ['Mapping of distutils-style command names to ``setuptools.Command`` subclasses', 'which in turn should be represented by strings with a qualified class name', '(i.e., "dotted" form with module), e.g.::\n\n', '    cmdclass = {mycmd = "pkg.subpkg.module.CommandClass"}\n\n', 'The command class should be a directly defined at the top-level of the', 'containing module (no class nesting).'], 'type': 'object', 'patternProperties': {'^.*$': {'type': 'string', 'format': 'python-qualified-identifier'}}}, 'license-files': {'type': 'array', 'items': {'type': 'string'}, '$$description': ['**PROVISIONAL**: list of glob patterns for all license files being distributed.', '(likely to become standard with :pep:`639`).', "By default: ``['LICEN[CS]E*', 'COPYING*', 'NOTICE*', 'AUTHORS*']``"], '$comment': 'TODO: revise if PEP 639 is accepted. Probably ``project.license-files``?'}, 'dynamic': {'type': 'object', 'description': 'Instructions for loading :pep:`621`-related metadata dynamically', 'additionalProperties': False, 'properties': {'version': {'$$description': ['A version dynamically loaded via either the ``attr:`` or ``file:``', 'directives. Please make sure the given file or attribute respects :pep:`440`.', 'Also ensure to set ``project.dynamic`` accordingly.'], 'oneOf': [{'title': "'attr:' directive", '$id': '#/definitions/attr-directive', '$$description': ['Value is read from a module attribute. Supports callables and iterables;', 'unsupported types are cast via ``str()``'], 'type': 'object', 'additionalProperties': False, 'properties': {'attr': {'type': 'string', 'format': 'python-qualified-identifier'}}, 'required': ['attr']}, {'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}]}, 'classifiers': {'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}, 'description': {'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}, 'entry-points': {'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}, 'dependencies': {'title': "'file:' directive for dependencies", 'allOf': [{'$$description': ['**BETA**: subset of the ``requirements.txt`` format', 'without ``pip`` flags and options', '(one :pep:`508`-compliant string per line,', 'lines that are blank or start with ``#`` are excluded).', 'See `dynamic metadata', '`_.']}, {'$ref': '#/definitions/file-directive'}]}, 'optional-dependencies': {'type': 'object', 'propertyNames': {'type': 'string', 'format': 'pep508-identifier'}, 'additionalProperties': False, 'patternProperties': {'.+': {'title': "'file:' directive for dependencies", 'allOf': [{'$$description': ['**BETA**: subset of the ``requirements.txt`` format', 'without ``pip`` flags and options', '(one :pep:`508`-compliant string per line,', 'lines that are blank or start with ``#`` are excluded).', 'See `dynamic metadata', '`_.']}, {'$ref': '#/definitions/file-directive'}]}}}, 'readme': {'type': 'object', 'anyOf': [{'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}, {'type': 'object', 'properties': {'content-type': {'type': 'string'}, 'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'additionalProperties': False}], 'required': ['file']}}}}, 'definitions': {'package-name': {'$id': '#/definitions/package-name', 'title': 'Valid package name', 'description': 'Valid package name (importable or :pep:`561`).', 'type': 'string', 'anyOf': [{'type': 'string', 'format': 'python-module-name-relaxed'}, {'type': 'string', 'format': 'pep561-stub-name'}]}, 'ext-module': {'$id': '#/definitions/ext-module', 'title': 'Extension module', 'description': 'Parameters to construct a :class:`setuptools.Extension` object', 'type': 'object', 'required': ['name', 'sources'], 'additionalProperties': False, 'properties': {'name': {'type': 'string', 'format': 'python-module-name-relaxed'}, 'sources': {'type': 'array', 'items': {'type': 'string'}}, 'include-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'define-macros': {'type': 'array', 'items': {'type': 'array', 'items': [{'description': 'macro name', 'type': 'string'}, {'description': 'macro value', 'oneOf': [{'type': 'string'}, {'type': 'null'}]}], 'additionalItems': False}}, 'undef-macros': {'type': 'array', 'items': {'type': 'string'}}, 'library-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'libraries': {'type': 'array', 'items': {'type': 'string'}}, 'runtime-library-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'extra-objects': {'type': 'array', 'items': {'type': 'string'}}, 'extra-compile-args': {'type': 'array', 'items': {'type': 'string'}}, 'extra-link-args': {'type': 'array', 'items': {'type': 'string'}}, 'export-symbols': {'type': 'array', 'items': {'type': 'string'}}, 'swig-opts': {'type': 'array', 'items': {'type': 'string'}}, 'depends': {'type': 'array', 'items': {'type': 'string'}}, 'language': {'type': 'string'}, 'optional': {'type': 'boolean'}, 'py-limited-api': {'type': 'boolean'}}}, 'file-directive': {'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}, 'file-directive-for-dependencies': {'title': "'file:' directive for dependencies", 'allOf': [{'$$description': ['**BETA**: subset of the ``requirements.txt`` format', 'without ``pip`` flags and options', '(one :pep:`508`-compliant string per line,', 'lines that are blank or start with ``#`` are excluded).', 'See `dynamic metadata', '`_.']}, {'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}]}, 'attr-directive': {'title': "'attr:' directive", '$id': '#/definitions/attr-directive', '$$description': ['Value is read from a module attribute. Supports callables and iterables;', 'unsupported types are cast via ``str()``'], 'type': 'object', 'additionalProperties': False, 'properties': {'attr': {'type': 'string', 'format': 'python-qualified-identifier'}}, 'required': ['attr']}, 'find-directive': {'$id': '#/definitions/find-directive', 'title': "'find:' directive", 'type': 'object', 'additionalProperties': False, 'properties': {'find': {'type': 'object', '$$description': ['Dynamic `package discovery', '`_.'], 'additionalProperties': False, 'properties': {'where': {'description': 'Directories to be searched for packages (Unix-style relative path)', 'type': 'array', 'items': {'type': 'string'}}, 'exclude': {'type': 'array', '$$description': ['Exclude packages that match the values listed in this field.', "Can container shell-style wildcards (e.g. ``'pkg.*'``)"], 'items': {'type': 'string'}}, 'include': {'type': 'array', '$$description': ['Restrict the found packages to just the ones listed in this field.', "Can container shell-style wildcards (e.g. ``'pkg.*'``)"], 'items': {'type': 'string'}}, 'namespaces': {'type': 'boolean', '$$description': ['When ``True``, directories without a ``__init__.py`` file will also', 'be scanned for :pep:`420`-style implicit namespaces']}}}}}}}, rule='type')
+    data_is_dict = isinstance(data, dict)
+    if data_is_dict:
+        data_keys = set(data.keys())
+        if "platforms" in data_keys:
+            data_keys.remove("platforms")
+            data__platforms = data["platforms"]
+            if not isinstance(data__platforms, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".platforms must be array", value=data__platforms, name="" + (name_prefix or "data") + ".platforms", definition={'type': 'array', 'items': {'type': 'string'}}, rule='type')
+            data__platforms_is_list = isinstance(data__platforms, (list, tuple))
+            if data__platforms_is_list:
+                data__platforms_len = len(data__platforms)
+                for data__platforms_x, data__platforms_item in enumerate(data__platforms):
+                    if not isinstance(data__platforms_item, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".platforms[{data__platforms_x}]".format(**locals()) + " must be string", value=data__platforms_item, name="" + (name_prefix or "data") + ".platforms[{data__platforms_x}]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+        if "provides" in data_keys:
+            data_keys.remove("provides")
+            data__provides = data["provides"]
+            if not isinstance(data__provides, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".provides must be array", value=data__provides, name="" + (name_prefix or "data") + ".provides", definition={'$$description': ['Package and virtual package names contained within this package', '**(not supported by pip)**'], 'type': 'array', 'items': {'type': 'string', 'format': 'pep508-identifier'}}, rule='type')
+            data__provides_is_list = isinstance(data__provides, (list, tuple))
+            if data__provides_is_list:
+                data__provides_len = len(data__provides)
+                for data__provides_x, data__provides_item in enumerate(data__provides):
+                    if not isinstance(data__provides_item, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".provides[{data__provides_x}]".format(**locals()) + " must be string", value=data__provides_item, name="" + (name_prefix or "data") + ".provides[{data__provides_x}]".format(**locals()) + "", definition={'type': 'string', 'format': 'pep508-identifier'}, rule='type')
+                    if isinstance(data__provides_item, str):
+                        if not custom_formats["pep508-identifier"](data__provides_item):
+                            raise JsonSchemaValueException("" + (name_prefix or "data") + ".provides[{data__provides_x}]".format(**locals()) + " must be pep508-identifier", value=data__provides_item, name="" + (name_prefix or "data") + ".provides[{data__provides_x}]".format(**locals()) + "", definition={'type': 'string', 'format': 'pep508-identifier'}, rule='format')
+        if "obsoletes" in data_keys:
+            data_keys.remove("obsoletes")
+            data__obsoletes = data["obsoletes"]
+            if not isinstance(data__obsoletes, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".obsoletes must be array", value=data__obsoletes, name="" + (name_prefix or "data") + ".obsoletes", definition={'$$description': ['Packages which this package renders obsolete', '**(not supported by pip)**'], 'type': 'array', 'items': {'type': 'string', 'format': 'pep508-identifier'}}, rule='type')
+            data__obsoletes_is_list = isinstance(data__obsoletes, (list, tuple))
+            if data__obsoletes_is_list:
+                data__obsoletes_len = len(data__obsoletes)
+                for data__obsoletes_x, data__obsoletes_item in enumerate(data__obsoletes):
+                    if not isinstance(data__obsoletes_item, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".obsoletes[{data__obsoletes_x}]".format(**locals()) + " must be string", value=data__obsoletes_item, name="" + (name_prefix or "data") + ".obsoletes[{data__obsoletes_x}]".format(**locals()) + "", definition={'type': 'string', 'format': 'pep508-identifier'}, rule='type')
+                    if isinstance(data__obsoletes_item, str):
+                        if not custom_formats["pep508-identifier"](data__obsoletes_item):
+                            raise JsonSchemaValueException("" + (name_prefix or "data") + ".obsoletes[{data__obsoletes_x}]".format(**locals()) + " must be pep508-identifier", value=data__obsoletes_item, name="" + (name_prefix or "data") + ".obsoletes[{data__obsoletes_x}]".format(**locals()) + "", definition={'type': 'string', 'format': 'pep508-identifier'}, rule='format')
+        if "zip-safe" in data_keys:
+            data_keys.remove("zip-safe")
+            data__zipsafe = data["zip-safe"]
+            if not isinstance(data__zipsafe, (bool)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".zip-safe must be boolean", value=data__zipsafe, name="" + (name_prefix or "data") + ".zip-safe", definition={'$$description': ['Whether the project can be safely installed and run from a zip file.', '**OBSOLETE**: only relevant for ``pkg_resources``, ``easy_install`` and', '``setup.py install`` in the context of ``eggs`` (**DEPRECATED**).'], 'type': 'boolean'}, rule='type')
+        if "script-files" in data_keys:
+            data_keys.remove("script-files")
+            data__scriptfiles = data["script-files"]
+            if not isinstance(data__scriptfiles, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".script-files must be array", value=data__scriptfiles, name="" + (name_prefix or "data") + ".script-files", definition={'$$description': ['Legacy way of defining scripts (entry-points are preferred).', 'Equivalent to the ``script`` keyword in ``setup.py``', '(it was renamed to avoid confusion with entry-point based ``project.scripts``', 'defined in :pep:`621`).', '**DISCOURAGED**: generic script wrappers are tricky and may not work properly.', 'Whenever possible, please use ``project.scripts`` instead.'], 'type': 'array', 'items': {'type': 'string'}, '$comment': 'TODO: is this field deprecated/should be removed?'}, rule='type')
+            data__scriptfiles_is_list = isinstance(data__scriptfiles, (list, tuple))
+            if data__scriptfiles_is_list:
+                data__scriptfiles_len = len(data__scriptfiles)
+                for data__scriptfiles_x, data__scriptfiles_item in enumerate(data__scriptfiles):
+                    if not isinstance(data__scriptfiles_item, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".script-files[{data__scriptfiles_x}]".format(**locals()) + " must be string", value=data__scriptfiles_item, name="" + (name_prefix or "data") + ".script-files[{data__scriptfiles_x}]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+        if "eager-resources" in data_keys:
+            data_keys.remove("eager-resources")
+            data__eagerresources = data["eager-resources"]
+            if not isinstance(data__eagerresources, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".eager-resources must be array", value=data__eagerresources, name="" + (name_prefix or "data") + ".eager-resources", definition={'$$description': ['Resources that should be extracted together, if any of them is needed,', 'or if any C extensions included in the project are imported.', '**OBSOLETE**: only relevant for ``pkg_resources``, ``easy_install`` and', '``setup.py install`` in the context of ``eggs`` (**DEPRECATED**).'], 'type': 'array', 'items': {'type': 'string'}}, rule='type')
+            data__eagerresources_is_list = isinstance(data__eagerresources, (list, tuple))
+            if data__eagerresources_is_list:
+                data__eagerresources_len = len(data__eagerresources)
+                for data__eagerresources_x, data__eagerresources_item in enumerate(data__eagerresources):
+                    if not isinstance(data__eagerresources_item, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".eager-resources[{data__eagerresources_x}]".format(**locals()) + " must be string", value=data__eagerresources_item, name="" + (name_prefix or "data") + ".eager-resources[{data__eagerresources_x}]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+        if "packages" in data_keys:
+            data_keys.remove("packages")
+            data__packages = data["packages"]
+            data__packages_one_of_count2 = 0
+            if data__packages_one_of_count2 < 2:
+                try:
+                    if not isinstance(data__packages, (list, tuple)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".packages must be array", value=data__packages, name="" + (name_prefix or "data") + ".packages", definition={'title': 'Array of Python package identifiers', 'type': 'array', 'items': {'$id': '#/definitions/package-name', 'title': 'Valid package name', 'description': 'Valid package name (importable or :pep:`561`).', 'type': 'string', 'anyOf': [{'type': 'string', 'format': 'python-module-name-relaxed'}, {'type': 'string', 'format': 'pep561-stub-name'}]}}, rule='type')
+                    data__packages_is_list = isinstance(data__packages, (list, tuple))
+                    if data__packages_is_list:
+                        data__packages_len = len(data__packages)
+                        for data__packages_x, data__packages_item in enumerate(data__packages):
+                            validate_https___setuptools_pypa_io_en_latest_userguide_pyproject_config_html__definitions_package_name(data__packages_item, custom_formats, (name_prefix or "data") + ".packages[{data__packages_x}]".format(**locals()))
+                    data__packages_one_of_count2 += 1
+                except JsonSchemaValueException: pass
+            if data__packages_one_of_count2 < 2:
+                try:
+                    validate_https___setuptools_pypa_io_en_latest_userguide_pyproject_config_html__definitions_find_directive(data__packages, custom_formats, (name_prefix or "data") + ".packages")
+                    data__packages_one_of_count2 += 1
+                except JsonSchemaValueException: pass
+            if data__packages_one_of_count2 != 1:
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".packages must be valid exactly by one definition" + (" (" + str(data__packages_one_of_count2) + " matches found)"), value=data__packages, name="" + (name_prefix or "data") + ".packages", definition={'$$description': ['Packages that should be included in the distribution.', 'It can be given either as a list of package identifiers', 'or as a ``dict``-like structure with a single key ``find``', 'which corresponds to a dynamic call to', '``setuptools.config.expand.find_packages`` function.', 'The ``find`` key is associated with a nested ``dict``-like structure that can', 'contain ``where``, ``include``, ``exclude`` and ``namespaces`` keys,', 'mimicking the keyword arguments of the associated function.'], 'oneOf': [{'title': 'Array of Python package identifiers', 'type': 'array', 'items': {'$id': '#/definitions/package-name', 'title': 'Valid package name', 'description': 'Valid package name (importable or :pep:`561`).', 'type': 'string', 'anyOf': [{'type': 'string', 'format': 'python-module-name-relaxed'}, {'type': 'string', 'format': 'pep561-stub-name'}]}}, {'$id': '#/definitions/find-directive', 'title': "'find:' directive", 'type': 'object', 'additionalProperties': False, 'properties': {'find': {'type': 'object', '$$description': ['Dynamic `package discovery', '`_.'], 'additionalProperties': False, 'properties': {'where': {'description': 'Directories to be searched for packages (Unix-style relative path)', 'type': 'array', 'items': {'type': 'string'}}, 'exclude': {'type': 'array', '$$description': ['Exclude packages that match the values listed in this field.', "Can container shell-style wildcards (e.g. ``'pkg.*'``)"], 'items': {'type': 'string'}}, 'include': {'type': 'array', '$$description': ['Restrict the found packages to just the ones listed in this field.', "Can container shell-style wildcards (e.g. ``'pkg.*'``)"], 'items': {'type': 'string'}}, 'namespaces': {'type': 'boolean', '$$description': ['When ``True``, directories without a ``__init__.py`` file will also', 'be scanned for :pep:`420`-style implicit namespaces']}}}}}]}, rule='oneOf')
+        if "package-dir" in data_keys:
+            data_keys.remove("package-dir")
+            data__packagedir = data["package-dir"]
+            if not isinstance(data__packagedir, (dict)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".package-dir must be object", value=data__packagedir, name="" + (name_prefix or "data") + ".package-dir", definition={'$$description': [':class:`dict`-like structure mapping from package names to directories where their', 'code can be found.', 'The empty string (as key) means that all packages are contained inside', 'the given directory will be included in the distribution.'], 'type': 'object', 'additionalProperties': False, 'propertyNames': {'anyOf': [{'const': ''}, {'$id': '#/definitions/package-name', 'title': 'Valid package name', 'description': 'Valid package name (importable or :pep:`561`).', 'type': 'string', 'anyOf': [{'type': 'string', 'format': 'python-module-name-relaxed'}, {'type': 'string', 'format': 'pep561-stub-name'}]}]}, 'patternProperties': {'^.*$': {'type': 'string'}}}, rule='type')
+            data__packagedir_is_dict = isinstance(data__packagedir, dict)
+            if data__packagedir_is_dict:
+                data__packagedir_keys = set(data__packagedir.keys())
+                for data__packagedir_key, data__packagedir_val in data__packagedir.items():
+                    if REGEX_PATTERNS['^.*$'].search(data__packagedir_key):
+                        if data__packagedir_key in data__packagedir_keys:
+                            data__packagedir_keys.remove(data__packagedir_key)
+                        if not isinstance(data__packagedir_val, (str)):
+                            raise JsonSchemaValueException("" + (name_prefix or "data") + ".package-dir.{data__packagedir_key}".format(**locals()) + " must be string", value=data__packagedir_val, name="" + (name_prefix or "data") + ".package-dir.{data__packagedir_key}".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+                if data__packagedir_keys:
+                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".package-dir must not contain "+str(data__packagedir_keys)+" properties", value=data__packagedir, name="" + (name_prefix or "data") + ".package-dir", definition={'$$description': [':class:`dict`-like structure mapping from package names to directories where their', 'code can be found.', 'The empty string (as key) means that all packages are contained inside', 'the given directory will be included in the distribution.'], 'type': 'object', 'additionalProperties': False, 'propertyNames': {'anyOf': [{'const': ''}, {'$id': '#/definitions/package-name', 'title': 'Valid package name', 'description': 'Valid package name (importable or :pep:`561`).', 'type': 'string', 'anyOf': [{'type': 'string', 'format': 'python-module-name-relaxed'}, {'type': 'string', 'format': 'pep561-stub-name'}]}]}, 'patternProperties': {'^.*$': {'type': 'string'}}}, rule='additionalProperties')
+                data__packagedir_len = len(data__packagedir)
+                if data__packagedir_len != 0:
+                    data__packagedir_property_names = True
+                    for data__packagedir_key in data__packagedir:
+                        try:
+                            data__packagedir_key_any_of_count3 = 0
+                            if not data__packagedir_key_any_of_count3:
+                                try:
+                                    if data__packagedir_key != "":
+                                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".package-dir must be same as const definition: ", value=data__packagedir_key, name="" + (name_prefix or "data") + ".package-dir", definition={'const': ''}, rule='const')
+                                    data__packagedir_key_any_of_count3 += 1
+                                except JsonSchemaValueException: pass
+                            if not data__packagedir_key_any_of_count3:
+                                try:
+                                    validate_https___setuptools_pypa_io_en_latest_userguide_pyproject_config_html__definitions_package_name(data__packagedir_key, custom_formats, (name_prefix or "data") + ".package-dir")
+                                    data__packagedir_key_any_of_count3 += 1
+                                except JsonSchemaValueException: pass
+                            if not data__packagedir_key_any_of_count3:
+                                raise JsonSchemaValueException("" + (name_prefix or "data") + ".package-dir cannot be validated by any definition", value=data__packagedir_key, name="" + (name_prefix or "data") + ".package-dir", definition={'anyOf': [{'const': ''}, {'$id': '#/definitions/package-name', 'title': 'Valid package name', 'description': 'Valid package name (importable or :pep:`561`).', 'type': 'string', 'anyOf': [{'type': 'string', 'format': 'python-module-name-relaxed'}, {'type': 'string', 'format': 'pep561-stub-name'}]}]}, rule='anyOf')
+                        except JsonSchemaValueException:
+                            data__packagedir_property_names = False
+                    if not data__packagedir_property_names:
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".package-dir must be named by propertyName definition", value=data__packagedir, name="" + (name_prefix or "data") + ".package-dir", definition={'$$description': [':class:`dict`-like structure mapping from package names to directories where their', 'code can be found.', 'The empty string (as key) means that all packages are contained inside', 'the given directory will be included in the distribution.'], 'type': 'object', 'additionalProperties': False, 'propertyNames': {'anyOf': [{'const': ''}, {'$id': '#/definitions/package-name', 'title': 'Valid package name', 'description': 'Valid package name (importable or :pep:`561`).', 'type': 'string', 'anyOf': [{'type': 'string', 'format': 'python-module-name-relaxed'}, {'type': 'string', 'format': 'pep561-stub-name'}]}]}, 'patternProperties': {'^.*$': {'type': 'string'}}}, rule='propertyNames')
+        if "package-data" in data_keys:
+            data_keys.remove("package-data")
+            data__packagedata = data["package-data"]
+            if not isinstance(data__packagedata, (dict)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".package-data must be object", value=data__packagedata, name="" + (name_prefix or "data") + ".package-data", definition={'$$description': ['Mapping from package names to lists of glob patterns.', 'Usually this option is not needed when using ``include-package-data = true``', 'For more information on how to include data files, check ``setuptools`` `docs', '`_.'], 'type': 'object', 'additionalProperties': False, 'propertyNames': {'anyOf': [{'type': 'string', 'format': 'python-module-name'}, {'const': '*'}]}, 'patternProperties': {'^.*$': {'type': 'array', 'items': {'type': 'string'}}}}, rule='type')
+            data__packagedata_is_dict = isinstance(data__packagedata, dict)
+            if data__packagedata_is_dict:
+                data__packagedata_keys = set(data__packagedata.keys())
+                for data__packagedata_key, data__packagedata_val in data__packagedata.items():
+                    if REGEX_PATTERNS['^.*$'].search(data__packagedata_key):
+                        if data__packagedata_key in data__packagedata_keys:
+                            data__packagedata_keys.remove(data__packagedata_key)
+                        if not isinstance(data__packagedata_val, (list, tuple)):
+                            raise JsonSchemaValueException("" + (name_prefix or "data") + ".package-data.{data__packagedata_key}".format(**locals()) + " must be array", value=data__packagedata_val, name="" + (name_prefix or "data") + ".package-data.{data__packagedata_key}".format(**locals()) + "", definition={'type': 'array', 'items': {'type': 'string'}}, rule='type')
+                        data__packagedata_val_is_list = isinstance(data__packagedata_val, (list, tuple))
+                        if data__packagedata_val_is_list:
+                            data__packagedata_val_len = len(data__packagedata_val)
+                            for data__packagedata_val_x, data__packagedata_val_item in enumerate(data__packagedata_val):
+                                if not isinstance(data__packagedata_val_item, (str)):
+                                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".package-data.{data__packagedata_key}[{data__packagedata_val_x}]".format(**locals()) + " must be string", value=data__packagedata_val_item, name="" + (name_prefix or "data") + ".package-data.{data__packagedata_key}[{data__packagedata_val_x}]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+                if data__packagedata_keys:
+                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".package-data must not contain "+str(data__packagedata_keys)+" properties", value=data__packagedata, name="" + (name_prefix or "data") + ".package-data", definition={'$$description': ['Mapping from package names to lists of glob patterns.', 'Usually this option is not needed when using ``include-package-data = true``', 'For more information on how to include data files, check ``setuptools`` `docs', '`_.'], 'type': 'object', 'additionalProperties': False, 'propertyNames': {'anyOf': [{'type': 'string', 'format': 'python-module-name'}, {'const': '*'}]}, 'patternProperties': {'^.*$': {'type': 'array', 'items': {'type': 'string'}}}}, rule='additionalProperties')
+                data__packagedata_len = len(data__packagedata)
+                if data__packagedata_len != 0:
+                    data__packagedata_property_names = True
+                    for data__packagedata_key in data__packagedata:
+                        try:
+                            data__packagedata_key_any_of_count4 = 0
+                            if not data__packagedata_key_any_of_count4:
+                                try:
+                                    if not isinstance(data__packagedata_key, (str)):
+                                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".package-data must be string", value=data__packagedata_key, name="" + (name_prefix or "data") + ".package-data", definition={'type': 'string', 'format': 'python-module-name'}, rule='type')
+                                    if isinstance(data__packagedata_key, str):
+                                        if not custom_formats["python-module-name"](data__packagedata_key):
+                                            raise JsonSchemaValueException("" + (name_prefix or "data") + ".package-data must be python-module-name", value=data__packagedata_key, name="" + (name_prefix or "data") + ".package-data", definition={'type': 'string', 'format': 'python-module-name'}, rule='format')
+                                    data__packagedata_key_any_of_count4 += 1
+                                except JsonSchemaValueException: pass
+                            if not data__packagedata_key_any_of_count4:
+                                try:
+                                    if data__packagedata_key != "*":
+                                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".package-data must be same as const definition: *", value=data__packagedata_key, name="" + (name_prefix or "data") + ".package-data", definition={'const': '*'}, rule='const')
+                                    data__packagedata_key_any_of_count4 += 1
+                                except JsonSchemaValueException: pass
+                            if not data__packagedata_key_any_of_count4:
+                                raise JsonSchemaValueException("" + (name_prefix or "data") + ".package-data cannot be validated by any definition", value=data__packagedata_key, name="" + (name_prefix or "data") + ".package-data", definition={'anyOf': [{'type': 'string', 'format': 'python-module-name'}, {'const': '*'}]}, rule='anyOf')
+                        except JsonSchemaValueException:
+                            data__packagedata_property_names = False
+                    if not data__packagedata_property_names:
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".package-data must be named by propertyName definition", value=data__packagedata, name="" + (name_prefix or "data") + ".package-data", definition={'$$description': ['Mapping from package names to lists of glob patterns.', 'Usually this option is not needed when using ``include-package-data = true``', 'For more information on how to include data files, check ``setuptools`` `docs', '`_.'], 'type': 'object', 'additionalProperties': False, 'propertyNames': {'anyOf': [{'type': 'string', 'format': 'python-module-name'}, {'const': '*'}]}, 'patternProperties': {'^.*$': {'type': 'array', 'items': {'type': 'string'}}}}, rule='propertyNames')
+        if "include-package-data" in data_keys:
+            data_keys.remove("include-package-data")
+            data__includepackagedata = data["include-package-data"]
+            if not isinstance(data__includepackagedata, (bool)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".include-package-data must be boolean", value=data__includepackagedata, name="" + (name_prefix or "data") + ".include-package-data", definition={'$$description': ['Automatically include any data files inside the package directories', 'that are specified by ``MANIFEST.in``', 'For more information on how to include data files, check ``setuptools`` `docs', '`_.'], 'type': 'boolean'}, rule='type')
+        if "exclude-package-data" in data_keys:
+            data_keys.remove("exclude-package-data")
+            data__excludepackagedata = data["exclude-package-data"]
+            if not isinstance(data__excludepackagedata, (dict)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".exclude-package-data must be object", value=data__excludepackagedata, name="" + (name_prefix or "data") + ".exclude-package-data", definition={'$$description': ['Mapping from package names to lists of glob patterns that should be excluded', 'For more information on how to include data files, check ``setuptools`` `docs', '`_.'], 'type': 'object', 'additionalProperties': False, 'propertyNames': {'anyOf': [{'type': 'string', 'format': 'python-module-name'}, {'const': '*'}]}, 'patternProperties': {'^.*$': {'type': 'array', 'items': {'type': 'string'}}}}, rule='type')
+            data__excludepackagedata_is_dict = isinstance(data__excludepackagedata, dict)
+            if data__excludepackagedata_is_dict:
+                data__excludepackagedata_keys = set(data__excludepackagedata.keys())
+                for data__excludepackagedata_key, data__excludepackagedata_val in data__excludepackagedata.items():
+                    if REGEX_PATTERNS['^.*$'].search(data__excludepackagedata_key):
+                        if data__excludepackagedata_key in data__excludepackagedata_keys:
+                            data__excludepackagedata_keys.remove(data__excludepackagedata_key)
+                        if not isinstance(data__excludepackagedata_val, (list, tuple)):
+                            raise JsonSchemaValueException("" + (name_prefix or "data") + ".exclude-package-data.{data__excludepackagedata_key}".format(**locals()) + " must be array", value=data__excludepackagedata_val, name="" + (name_prefix or "data") + ".exclude-package-data.{data__excludepackagedata_key}".format(**locals()) + "", definition={'type': 'array', 'items': {'type': 'string'}}, rule='type')
+                        data__excludepackagedata_val_is_list = isinstance(data__excludepackagedata_val, (list, tuple))
+                        if data__excludepackagedata_val_is_list:
+                            data__excludepackagedata_val_len = len(data__excludepackagedata_val)
+                            for data__excludepackagedata_val_x, data__excludepackagedata_val_item in enumerate(data__excludepackagedata_val):
+                                if not isinstance(data__excludepackagedata_val_item, (str)):
+                                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".exclude-package-data.{data__excludepackagedata_key}[{data__excludepackagedata_val_x}]".format(**locals()) + " must be string", value=data__excludepackagedata_val_item, name="" + (name_prefix or "data") + ".exclude-package-data.{data__excludepackagedata_key}[{data__excludepackagedata_val_x}]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+                if data__excludepackagedata_keys:
+                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".exclude-package-data must not contain "+str(data__excludepackagedata_keys)+" properties", value=data__excludepackagedata, name="" + (name_prefix or "data") + ".exclude-package-data", definition={'$$description': ['Mapping from package names to lists of glob patterns that should be excluded', 'For more information on how to include data files, check ``setuptools`` `docs', '`_.'], 'type': 'object', 'additionalProperties': False, 'propertyNames': {'anyOf': [{'type': 'string', 'format': 'python-module-name'}, {'const': '*'}]}, 'patternProperties': {'^.*$': {'type': 'array', 'items': {'type': 'string'}}}}, rule='additionalProperties')
+                data__excludepackagedata_len = len(data__excludepackagedata)
+                if data__excludepackagedata_len != 0:
+                    data__excludepackagedata_property_names = True
+                    for data__excludepackagedata_key in data__excludepackagedata:
+                        try:
+                            data__excludepackagedata_key_any_of_count5 = 0
+                            if not data__excludepackagedata_key_any_of_count5:
+                                try:
+                                    if not isinstance(data__excludepackagedata_key, (str)):
+                                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".exclude-package-data must be string", value=data__excludepackagedata_key, name="" + (name_prefix or "data") + ".exclude-package-data", definition={'type': 'string', 'format': 'python-module-name'}, rule='type')
+                                    if isinstance(data__excludepackagedata_key, str):
+                                        if not custom_formats["python-module-name"](data__excludepackagedata_key):
+                                            raise JsonSchemaValueException("" + (name_prefix or "data") + ".exclude-package-data must be python-module-name", value=data__excludepackagedata_key, name="" + (name_prefix or "data") + ".exclude-package-data", definition={'type': 'string', 'format': 'python-module-name'}, rule='format')
+                                    data__excludepackagedata_key_any_of_count5 += 1
+                                except JsonSchemaValueException: pass
+                            if not data__excludepackagedata_key_any_of_count5:
+                                try:
+                                    if data__excludepackagedata_key != "*":
+                                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".exclude-package-data must be same as const definition: *", value=data__excludepackagedata_key, name="" + (name_prefix or "data") + ".exclude-package-data", definition={'const': '*'}, rule='const')
+                                    data__excludepackagedata_key_any_of_count5 += 1
+                                except JsonSchemaValueException: pass
+                            if not data__excludepackagedata_key_any_of_count5:
+                                raise JsonSchemaValueException("" + (name_prefix or "data") + ".exclude-package-data cannot be validated by any definition", value=data__excludepackagedata_key, name="" + (name_prefix or "data") + ".exclude-package-data", definition={'anyOf': [{'type': 'string', 'format': 'python-module-name'}, {'const': '*'}]}, rule='anyOf')
+                        except JsonSchemaValueException:
+                            data__excludepackagedata_property_names = False
+                    if not data__excludepackagedata_property_names:
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".exclude-package-data must be named by propertyName definition", value=data__excludepackagedata, name="" + (name_prefix or "data") + ".exclude-package-data", definition={'$$description': ['Mapping from package names to lists of glob patterns that should be excluded', 'For more information on how to include data files, check ``setuptools`` `docs', '`_.'], 'type': 'object', 'additionalProperties': False, 'propertyNames': {'anyOf': [{'type': 'string', 'format': 'python-module-name'}, {'const': '*'}]}, 'patternProperties': {'^.*$': {'type': 'array', 'items': {'type': 'string'}}}}, rule='propertyNames')
+        if "namespace-packages" in data_keys:
+            data_keys.remove("namespace-packages")
+            data__namespacepackages = data["namespace-packages"]
+            if not isinstance(data__namespacepackages, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".namespace-packages must be array", value=data__namespacepackages, name="" + (name_prefix or "data") + ".namespace-packages", definition={'type': 'array', 'items': {'type': 'string', 'format': 'python-module-name-relaxed'}, '$comment': 'https://setuptools.pypa.io/en/latest/userguide/package_discovery.html', 'description': '**DEPRECATED**: use implicit namespaces instead (:pep:`420`).'}, rule='type')
+            data__namespacepackages_is_list = isinstance(data__namespacepackages, (list, tuple))
+            if data__namespacepackages_is_list:
+                data__namespacepackages_len = len(data__namespacepackages)
+                for data__namespacepackages_x, data__namespacepackages_item in enumerate(data__namespacepackages):
+                    if not isinstance(data__namespacepackages_item, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".namespace-packages[{data__namespacepackages_x}]".format(**locals()) + " must be string", value=data__namespacepackages_item, name="" + (name_prefix or "data") + ".namespace-packages[{data__namespacepackages_x}]".format(**locals()) + "", definition={'type': 'string', 'format': 'python-module-name-relaxed'}, rule='type')
+                    if isinstance(data__namespacepackages_item, str):
+                        if not custom_formats["python-module-name-relaxed"](data__namespacepackages_item):
+                            raise JsonSchemaValueException("" + (name_prefix or "data") + ".namespace-packages[{data__namespacepackages_x}]".format(**locals()) + " must be python-module-name-relaxed", value=data__namespacepackages_item, name="" + (name_prefix or "data") + ".namespace-packages[{data__namespacepackages_x}]".format(**locals()) + "", definition={'type': 'string', 'format': 'python-module-name-relaxed'}, rule='format')
+        if "py-modules" in data_keys:
+            data_keys.remove("py-modules")
+            data__pymodules = data["py-modules"]
+            if not isinstance(data__pymodules, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".py-modules must be array", value=data__pymodules, name="" + (name_prefix or "data") + ".py-modules", definition={'description': 'Modules that setuptools will manipulate', 'type': 'array', 'items': {'type': 'string', 'format': 'python-module-name-relaxed'}, '$comment': 'TODO: clarify the relationship with ``packages``'}, rule='type')
+            data__pymodules_is_list = isinstance(data__pymodules, (list, tuple))
+            if data__pymodules_is_list:
+                data__pymodules_len = len(data__pymodules)
+                for data__pymodules_x, data__pymodules_item in enumerate(data__pymodules):
+                    if not isinstance(data__pymodules_item, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".py-modules[{data__pymodules_x}]".format(**locals()) + " must be string", value=data__pymodules_item, name="" + (name_prefix or "data") + ".py-modules[{data__pymodules_x}]".format(**locals()) + "", definition={'type': 'string', 'format': 'python-module-name-relaxed'}, rule='type')
+                    if isinstance(data__pymodules_item, str):
+                        if not custom_formats["python-module-name-relaxed"](data__pymodules_item):
+                            raise JsonSchemaValueException("" + (name_prefix or "data") + ".py-modules[{data__pymodules_x}]".format(**locals()) + " must be python-module-name-relaxed", value=data__pymodules_item, name="" + (name_prefix or "data") + ".py-modules[{data__pymodules_x}]".format(**locals()) + "", definition={'type': 'string', 'format': 'python-module-name-relaxed'}, rule='format')
+        if "ext-modules" in data_keys:
+            data_keys.remove("ext-modules")
+            data__extmodules = data["ext-modules"]
+            if not isinstance(data__extmodules, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".ext-modules must be array", value=data__extmodules, name="" + (name_prefix or "data") + ".ext-modules", definition={'description': 'Extension modules to be compiled by setuptools', 'type': 'array', 'items': {'$id': '#/definitions/ext-module', 'title': 'Extension module', 'description': 'Parameters to construct a :class:`setuptools.Extension` object', 'type': 'object', 'required': ['name', 'sources'], 'additionalProperties': False, 'properties': {'name': {'type': 'string', 'format': 'python-module-name-relaxed'}, 'sources': {'type': 'array', 'items': {'type': 'string'}}, 'include-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'define-macros': {'type': 'array', 'items': {'type': 'array', 'items': [{'description': 'macro name', 'type': 'string'}, {'description': 'macro value', 'oneOf': [{'type': 'string'}, {'type': 'null'}]}], 'additionalItems': False}}, 'undef-macros': {'type': 'array', 'items': {'type': 'string'}}, 'library-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'libraries': {'type': 'array', 'items': {'type': 'string'}}, 'runtime-library-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'extra-objects': {'type': 'array', 'items': {'type': 'string'}}, 'extra-compile-args': {'type': 'array', 'items': {'type': 'string'}}, 'extra-link-args': {'type': 'array', 'items': {'type': 'string'}}, 'export-symbols': {'type': 'array', 'items': {'type': 'string'}}, 'swig-opts': {'type': 'array', 'items': {'type': 'string'}}, 'depends': {'type': 'array', 'items': {'type': 'string'}}, 'language': {'type': 'string'}, 'optional': {'type': 'boolean'}, 'py-limited-api': {'type': 'boolean'}}}}, rule='type')
+            data__extmodules_is_list = isinstance(data__extmodules, (list, tuple))
+            if data__extmodules_is_list:
+                data__extmodules_len = len(data__extmodules)
+                for data__extmodules_x, data__extmodules_item in enumerate(data__extmodules):
+                    validate_https___setuptools_pypa_io_en_latest_userguide_pyproject_config_html__definitions_ext_module(data__extmodules_item, custom_formats, (name_prefix or "data") + ".ext-modules[{data__extmodules_x}]".format(**locals()))
+        if "data-files" in data_keys:
+            data_keys.remove("data-files")
+            data__datafiles = data["data-files"]
+            if not isinstance(data__datafiles, (dict)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".data-files must be object", value=data__datafiles, name="" + (name_prefix or "data") + ".data-files", definition={'$$description': ['``dict``-like structure where each key represents a directory and', 'the value is a list of glob patterns that should be installed in them.', '**DISCOURAGED**: please notice this might not work as expected with wheels.', 'Whenever possible, consider using data files inside the package directories', '(or create a new namespace package that only contains data files).', 'See `data files support', '`_.'], 'type': 'object', 'patternProperties': {'^.*$': {'type': 'array', 'items': {'type': 'string'}}}}, rule='type')
+            data__datafiles_is_dict = isinstance(data__datafiles, dict)
+            if data__datafiles_is_dict:
+                data__datafiles_keys = set(data__datafiles.keys())
+                for data__datafiles_key, data__datafiles_val in data__datafiles.items():
+                    if REGEX_PATTERNS['^.*$'].search(data__datafiles_key):
+                        if data__datafiles_key in data__datafiles_keys:
+                            data__datafiles_keys.remove(data__datafiles_key)
+                        if not isinstance(data__datafiles_val, (list, tuple)):
+                            raise JsonSchemaValueException("" + (name_prefix or "data") + ".data-files.{data__datafiles_key}".format(**locals()) + " must be array", value=data__datafiles_val, name="" + (name_prefix or "data") + ".data-files.{data__datafiles_key}".format(**locals()) + "", definition={'type': 'array', 'items': {'type': 'string'}}, rule='type')
+                        data__datafiles_val_is_list = isinstance(data__datafiles_val, (list, tuple))
+                        if data__datafiles_val_is_list:
+                            data__datafiles_val_len = len(data__datafiles_val)
+                            for data__datafiles_val_x, data__datafiles_val_item in enumerate(data__datafiles_val):
+                                if not isinstance(data__datafiles_val_item, (str)):
+                                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".data-files.{data__datafiles_key}[{data__datafiles_val_x}]".format(**locals()) + " must be string", value=data__datafiles_val_item, name="" + (name_prefix or "data") + ".data-files.{data__datafiles_key}[{data__datafiles_val_x}]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+        if "cmdclass" in data_keys:
+            data_keys.remove("cmdclass")
+            data__cmdclass = data["cmdclass"]
+            if not isinstance(data__cmdclass, (dict)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".cmdclass must be object", value=data__cmdclass, name="" + (name_prefix or "data") + ".cmdclass", definition={'$$description': ['Mapping of distutils-style command names to ``setuptools.Command`` subclasses', 'which in turn should be represented by strings with a qualified class name', '(i.e., "dotted" form with module), e.g.::\n\n', '    cmdclass = {mycmd = "pkg.subpkg.module.CommandClass"}\n\n', 'The command class should be a directly defined at the top-level of the', 'containing module (no class nesting).'], 'type': 'object', 'patternProperties': {'^.*$': {'type': 'string', 'format': 'python-qualified-identifier'}}}, rule='type')
+            data__cmdclass_is_dict = isinstance(data__cmdclass, dict)
+            if data__cmdclass_is_dict:
+                data__cmdclass_keys = set(data__cmdclass.keys())
+                for data__cmdclass_key, data__cmdclass_val in data__cmdclass.items():
+                    if REGEX_PATTERNS['^.*$'].search(data__cmdclass_key):
+                        if data__cmdclass_key in data__cmdclass_keys:
+                            data__cmdclass_keys.remove(data__cmdclass_key)
+                        if not isinstance(data__cmdclass_val, (str)):
+                            raise JsonSchemaValueException("" + (name_prefix or "data") + ".cmdclass.{data__cmdclass_key}".format(**locals()) + " must be string", value=data__cmdclass_val, name="" + (name_prefix or "data") + ".cmdclass.{data__cmdclass_key}".format(**locals()) + "", definition={'type': 'string', 'format': 'python-qualified-identifier'}, rule='type')
+                        if isinstance(data__cmdclass_val, str):
+                            if not custom_formats["python-qualified-identifier"](data__cmdclass_val):
+                                raise JsonSchemaValueException("" + (name_prefix or "data") + ".cmdclass.{data__cmdclass_key}".format(**locals()) + " must be python-qualified-identifier", value=data__cmdclass_val, name="" + (name_prefix or "data") + ".cmdclass.{data__cmdclass_key}".format(**locals()) + "", definition={'type': 'string', 'format': 'python-qualified-identifier'}, rule='format')
+        if "license-files" in data_keys:
+            data_keys.remove("license-files")
+            data__licensefiles = data["license-files"]
+            if not isinstance(data__licensefiles, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".license-files must be array", value=data__licensefiles, name="" + (name_prefix or "data") + ".license-files", definition={'type': 'array', 'items': {'type': 'string'}, '$$description': ['**PROVISIONAL**: list of glob patterns for all license files being distributed.', '(likely to become standard with :pep:`639`).', "By default: ``['LICEN[CS]E*', 'COPYING*', 'NOTICE*', 'AUTHORS*']``"], '$comment': 'TODO: revise if PEP 639 is accepted. Probably ``project.license-files``?'}, rule='type')
+            data__licensefiles_is_list = isinstance(data__licensefiles, (list, tuple))
+            if data__licensefiles_is_list:
+                data__licensefiles_len = len(data__licensefiles)
+                for data__licensefiles_x, data__licensefiles_item in enumerate(data__licensefiles):
+                    if not isinstance(data__licensefiles_item, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".license-files[{data__licensefiles_x}]".format(**locals()) + " must be string", value=data__licensefiles_item, name="" + (name_prefix or "data") + ".license-files[{data__licensefiles_x}]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+        if "dynamic" in data_keys:
+            data_keys.remove("dynamic")
+            data__dynamic = data["dynamic"]
+            if not isinstance(data__dynamic, (dict)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".dynamic must be object", value=data__dynamic, name="" + (name_prefix or "data") + ".dynamic", definition={'type': 'object', 'description': 'Instructions for loading :pep:`621`-related metadata dynamically', 'additionalProperties': False, 'properties': {'version': {'$$description': ['A version dynamically loaded via either the ``attr:`` or ``file:``', 'directives. Please make sure the given file or attribute respects :pep:`440`.', 'Also ensure to set ``project.dynamic`` accordingly.'], 'oneOf': [{'title': "'attr:' directive", '$id': '#/definitions/attr-directive', '$$description': ['Value is read from a module attribute. Supports callables and iterables;', 'unsupported types are cast via ``str()``'], 'type': 'object', 'additionalProperties': False, 'properties': {'attr': {'type': 'string', 'format': 'python-qualified-identifier'}}, 'required': ['attr']}, {'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}]}, 'classifiers': {'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}, 'description': {'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}, 'entry-points': {'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}, 'dependencies': {'title': "'file:' directive for dependencies", 'allOf': [{'$$description': ['**BETA**: subset of the ``requirements.txt`` format', 'without ``pip`` flags and options', '(one :pep:`508`-compliant string per line,', 'lines that are blank or start with ``#`` are excluded).', 'See `dynamic metadata', '`_.']}, {'$ref': '#/definitions/file-directive'}]}, 'optional-dependencies': {'type': 'object', 'propertyNames': {'type': 'string', 'format': 'pep508-identifier'}, 'additionalProperties': False, 'patternProperties': {'.+': {'title': "'file:' directive for dependencies", 'allOf': [{'$$description': ['**BETA**: subset of the ``requirements.txt`` format', 'without ``pip`` flags and options', '(one :pep:`508`-compliant string per line,', 'lines that are blank or start with ``#`` are excluded).', 'See `dynamic metadata', '`_.']}, {'$ref': '#/definitions/file-directive'}]}}}, 'readme': {'type': 'object', 'anyOf': [{'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}, {'type': 'object', 'properties': {'content-type': {'type': 'string'}, 'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'additionalProperties': False}], 'required': ['file']}}}, rule='type')
+            data__dynamic_is_dict = isinstance(data__dynamic, dict)
+            if data__dynamic_is_dict:
+                data__dynamic_keys = set(data__dynamic.keys())
+                if "version" in data__dynamic_keys:
+                    data__dynamic_keys.remove("version")
+                    data__dynamic__version = data__dynamic["version"]
+                    data__dynamic__version_one_of_count6 = 0
+                    if data__dynamic__version_one_of_count6 < 2:
+                        try:
+                            validate_https___setuptools_pypa_io_en_latest_userguide_pyproject_config_html__definitions_attr_directive(data__dynamic__version, custom_formats, (name_prefix or "data") + ".dynamic.version")
+                            data__dynamic__version_one_of_count6 += 1
+                        except JsonSchemaValueException: pass
+                    if data__dynamic__version_one_of_count6 < 2:
+                        try:
+                            validate_https___setuptools_pypa_io_en_latest_userguide_pyproject_config_html__definitions_file_directive(data__dynamic__version, custom_formats, (name_prefix or "data") + ".dynamic.version")
+                            data__dynamic__version_one_of_count6 += 1
+                        except JsonSchemaValueException: pass
+                    if data__dynamic__version_one_of_count6 != 1:
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".dynamic.version must be valid exactly by one definition" + (" (" + str(data__dynamic__version_one_of_count6) + " matches found)"), value=data__dynamic__version, name="" + (name_prefix or "data") + ".dynamic.version", definition={'$$description': ['A version dynamically loaded via either the ``attr:`` or ``file:``', 'directives. Please make sure the given file or attribute respects :pep:`440`.', 'Also ensure to set ``project.dynamic`` accordingly.'], 'oneOf': [{'title': "'attr:' directive", '$id': '#/definitions/attr-directive', '$$description': ['Value is read from a module attribute. Supports callables and iterables;', 'unsupported types are cast via ``str()``'], 'type': 'object', 'additionalProperties': False, 'properties': {'attr': {'type': 'string', 'format': 'python-qualified-identifier'}}, 'required': ['attr']}, {'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}]}, rule='oneOf')
+                if "classifiers" in data__dynamic_keys:
+                    data__dynamic_keys.remove("classifiers")
+                    data__dynamic__classifiers = data__dynamic["classifiers"]
+                    validate_https___setuptools_pypa_io_en_latest_userguide_pyproject_config_html__definitions_file_directive(data__dynamic__classifiers, custom_formats, (name_prefix or "data") + ".dynamic.classifiers")
+                if "description" in data__dynamic_keys:
+                    data__dynamic_keys.remove("description")
+                    data__dynamic__description = data__dynamic["description"]
+                    validate_https___setuptools_pypa_io_en_latest_userguide_pyproject_config_html__definitions_file_directive(data__dynamic__description, custom_formats, (name_prefix or "data") + ".dynamic.description")
+                if "entry-points" in data__dynamic_keys:
+                    data__dynamic_keys.remove("entry-points")
+                    data__dynamic__entrypoints = data__dynamic["entry-points"]
+                    validate_https___setuptools_pypa_io_en_latest_userguide_pyproject_config_html__definitions_file_directive(data__dynamic__entrypoints, custom_formats, (name_prefix or "data") + ".dynamic.entry-points")
+                if "dependencies" in data__dynamic_keys:
+                    data__dynamic_keys.remove("dependencies")
+                    data__dynamic__dependencies = data__dynamic["dependencies"]
+                    validate_https___setuptools_pypa_io_en_latest_userguide_pyproject_config_html__definitions_file_directive_for_dependencies(data__dynamic__dependencies, custom_formats, (name_prefix or "data") + ".dynamic.dependencies")
+                if "optional-dependencies" in data__dynamic_keys:
+                    data__dynamic_keys.remove("optional-dependencies")
+                    data__dynamic__optionaldependencies = data__dynamic["optional-dependencies"]
+                    if not isinstance(data__dynamic__optionaldependencies, (dict)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".dynamic.optional-dependencies must be object", value=data__dynamic__optionaldependencies, name="" + (name_prefix or "data") + ".dynamic.optional-dependencies", definition={'type': 'object', 'propertyNames': {'type': 'string', 'format': 'pep508-identifier'}, 'additionalProperties': False, 'patternProperties': {'.+': {'title': "'file:' directive for dependencies", 'allOf': [{'$$description': ['**BETA**: subset of the ``requirements.txt`` format', 'without ``pip`` flags and options', '(one :pep:`508`-compliant string per line,', 'lines that are blank or start with ``#`` are excluded).', 'See `dynamic metadata', '`_.']}, {'$ref': '#/definitions/file-directive'}]}}}, rule='type')
+                    data__dynamic__optionaldependencies_is_dict = isinstance(data__dynamic__optionaldependencies, dict)
+                    if data__dynamic__optionaldependencies_is_dict:
+                        data__dynamic__optionaldependencies_keys = set(data__dynamic__optionaldependencies.keys())
+                        for data__dynamic__optionaldependencies_key, data__dynamic__optionaldependencies_val in data__dynamic__optionaldependencies.items():
+                            if REGEX_PATTERNS['.+'].search(data__dynamic__optionaldependencies_key):
+                                if data__dynamic__optionaldependencies_key in data__dynamic__optionaldependencies_keys:
+                                    data__dynamic__optionaldependencies_keys.remove(data__dynamic__optionaldependencies_key)
+                                validate_https___setuptools_pypa_io_en_latest_userguide_pyproject_config_html__definitions_file_directive_for_dependencies(data__dynamic__optionaldependencies_val, custom_formats, (name_prefix or "data") + ".dynamic.optional-dependencies.{data__dynamic__optionaldependencies_key}".format(**locals()))
+                        if data__dynamic__optionaldependencies_keys:
+                            raise JsonSchemaValueException("" + (name_prefix or "data") + ".dynamic.optional-dependencies must not contain "+str(data__dynamic__optionaldependencies_keys)+" properties", value=data__dynamic__optionaldependencies, name="" + (name_prefix or "data") + ".dynamic.optional-dependencies", definition={'type': 'object', 'propertyNames': {'type': 'string', 'format': 'pep508-identifier'}, 'additionalProperties': False, 'patternProperties': {'.+': {'title': "'file:' directive for dependencies", 'allOf': [{'$$description': ['**BETA**: subset of the ``requirements.txt`` format', 'without ``pip`` flags and options', '(one :pep:`508`-compliant string per line,', 'lines that are blank or start with ``#`` are excluded).', 'See `dynamic metadata', '`_.']}, {'$ref': '#/definitions/file-directive'}]}}}, rule='additionalProperties')
+                        data__dynamic__optionaldependencies_len = len(data__dynamic__optionaldependencies)
+                        if data__dynamic__optionaldependencies_len != 0:
+                            data__dynamic__optionaldependencies_property_names = True
+                            for data__dynamic__optionaldependencies_key in data__dynamic__optionaldependencies:
+                                try:
+                                    if not isinstance(data__dynamic__optionaldependencies_key, (str)):
+                                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".dynamic.optional-dependencies must be string", value=data__dynamic__optionaldependencies_key, name="" + (name_prefix or "data") + ".dynamic.optional-dependencies", definition={'type': 'string', 'format': 'pep508-identifier'}, rule='type')
+                                    if isinstance(data__dynamic__optionaldependencies_key, str):
+                                        if not custom_formats["pep508-identifier"](data__dynamic__optionaldependencies_key):
+                                            raise JsonSchemaValueException("" + (name_prefix or "data") + ".dynamic.optional-dependencies must be pep508-identifier", value=data__dynamic__optionaldependencies_key, name="" + (name_prefix or "data") + ".dynamic.optional-dependencies", definition={'type': 'string', 'format': 'pep508-identifier'}, rule='format')
+                                except JsonSchemaValueException:
+                                    data__dynamic__optionaldependencies_property_names = False
+                            if not data__dynamic__optionaldependencies_property_names:
+                                raise JsonSchemaValueException("" + (name_prefix or "data") + ".dynamic.optional-dependencies must be named by propertyName definition", value=data__dynamic__optionaldependencies, name="" + (name_prefix or "data") + ".dynamic.optional-dependencies", definition={'type': 'object', 'propertyNames': {'type': 'string', 'format': 'pep508-identifier'}, 'additionalProperties': False, 'patternProperties': {'.+': {'title': "'file:' directive for dependencies", 'allOf': [{'$$description': ['**BETA**: subset of the ``requirements.txt`` format', 'without ``pip`` flags and options', '(one :pep:`508`-compliant string per line,', 'lines that are blank or start with ``#`` are excluded).', 'See `dynamic metadata', '`_.']}, {'$ref': '#/definitions/file-directive'}]}}}, rule='propertyNames')
+                if "readme" in data__dynamic_keys:
+                    data__dynamic_keys.remove("readme")
+                    data__dynamic__readme = data__dynamic["readme"]
+                    if not isinstance(data__dynamic__readme, (dict)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".dynamic.readme must be object", value=data__dynamic__readme, name="" + (name_prefix or "data") + ".dynamic.readme", definition={'type': 'object', 'anyOf': [{'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}, {'type': 'object', 'properties': {'content-type': {'type': 'string'}, 'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'additionalProperties': False}], 'required': ['file']}, rule='type')
+                    data__dynamic__readme_any_of_count7 = 0
+                    if not data__dynamic__readme_any_of_count7:
+                        try:
+                            validate_https___setuptools_pypa_io_en_latest_userguide_pyproject_config_html__definitions_file_directive(data__dynamic__readme, custom_formats, (name_prefix or "data") + ".dynamic.readme")
+                            data__dynamic__readme_any_of_count7 += 1
+                        except JsonSchemaValueException: pass
+                    if not data__dynamic__readme_any_of_count7:
+                        try:
+                            if not isinstance(data__dynamic__readme, (dict)):
+                                raise JsonSchemaValueException("" + (name_prefix or "data") + ".dynamic.readme must be object", value=data__dynamic__readme, name="" + (name_prefix or "data") + ".dynamic.readme", definition={'type': 'object', 'properties': {'content-type': {'type': 'string'}, 'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'additionalProperties': False}, rule='type')
+                            data__dynamic__readme_is_dict = isinstance(data__dynamic__readme, dict)
+                            if data__dynamic__readme_is_dict:
+                                data__dynamic__readme_keys = set(data__dynamic__readme.keys())
+                                if "content-type" in data__dynamic__readme_keys:
+                                    data__dynamic__readme_keys.remove("content-type")
+                                    data__dynamic__readme__contenttype = data__dynamic__readme["content-type"]
+                                    if not isinstance(data__dynamic__readme__contenttype, (str)):
+                                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".dynamic.readme.content-type must be string", value=data__dynamic__readme__contenttype, name="" + (name_prefix or "data") + ".dynamic.readme.content-type", definition={'type': 'string'}, rule='type')
+                                if "file" in data__dynamic__readme_keys:
+                                    data__dynamic__readme_keys.remove("file")
+                                    data__dynamic__readme__file = data__dynamic__readme["file"]
+                                    validate_https___setuptools_pypa_io_en_latest_userguide_pyproject_config_html__definitions_file_directive_properties_file(data__dynamic__readme__file, custom_formats, (name_prefix or "data") + ".dynamic.readme.file")
+                                if data__dynamic__readme_keys:
+                                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".dynamic.readme must not contain "+str(data__dynamic__readme_keys)+" properties", value=data__dynamic__readme, name="" + (name_prefix or "data") + ".dynamic.readme", definition={'type': 'object', 'properties': {'content-type': {'type': 'string'}, 'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'additionalProperties': False}, rule='additionalProperties')
+                            data__dynamic__readme_any_of_count7 += 1
+                        except JsonSchemaValueException: pass
+                    if not data__dynamic__readme_any_of_count7:
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".dynamic.readme cannot be validated by any definition", value=data__dynamic__readme, name="" + (name_prefix or "data") + ".dynamic.readme", definition={'type': 'object', 'anyOf': [{'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}, {'type': 'object', 'properties': {'content-type': {'type': 'string'}, 'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'additionalProperties': False}], 'required': ['file']}, rule='anyOf')
+                    data__dynamic__readme_is_dict = isinstance(data__dynamic__readme, dict)
+                    if data__dynamic__readme_is_dict:
+                        data__dynamic__readme__missing_keys = set(['file']) - data__dynamic__readme.keys()
+                        if data__dynamic__readme__missing_keys:
+                            raise JsonSchemaValueException("" + (name_prefix or "data") + ".dynamic.readme must contain " + (str(sorted(data__dynamic__readme__missing_keys)) + " properties"), value=data__dynamic__readme, name="" + (name_prefix or "data") + ".dynamic.readme", definition={'type': 'object', 'anyOf': [{'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}, {'type': 'object', 'properties': {'content-type': {'type': 'string'}, 'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'additionalProperties': False}], 'required': ['file']}, rule='required')
+                if data__dynamic_keys:
+                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".dynamic must not contain "+str(data__dynamic_keys)+" properties", value=data__dynamic, name="" + (name_prefix or "data") + ".dynamic", definition={'type': 'object', 'description': 'Instructions for loading :pep:`621`-related metadata dynamically', 'additionalProperties': False, 'properties': {'version': {'$$description': ['A version dynamically loaded via either the ``attr:`` or ``file:``', 'directives. Please make sure the given file or attribute respects :pep:`440`.', 'Also ensure to set ``project.dynamic`` accordingly.'], 'oneOf': [{'title': "'attr:' directive", '$id': '#/definitions/attr-directive', '$$description': ['Value is read from a module attribute. Supports callables and iterables;', 'unsupported types are cast via ``str()``'], 'type': 'object', 'additionalProperties': False, 'properties': {'attr': {'type': 'string', 'format': 'python-qualified-identifier'}}, 'required': ['attr']}, {'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}]}, 'classifiers': {'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}, 'description': {'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}, 'entry-points': {'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}, 'dependencies': {'title': "'file:' directive for dependencies", 'allOf': [{'$$description': ['**BETA**: subset of the ``requirements.txt`` format', 'without ``pip`` flags and options', '(one :pep:`508`-compliant string per line,', 'lines that are blank or start with ``#`` are excluded).', 'See `dynamic metadata', '`_.']}, {'$ref': '#/definitions/file-directive'}]}, 'optional-dependencies': {'type': 'object', 'propertyNames': {'type': 'string', 'format': 'pep508-identifier'}, 'additionalProperties': False, 'patternProperties': {'.+': {'title': "'file:' directive for dependencies", 'allOf': [{'$$description': ['**BETA**: subset of the ``requirements.txt`` format', 'without ``pip`` flags and options', '(one :pep:`508`-compliant string per line,', 'lines that are blank or start with ``#`` are excluded).', 'See `dynamic metadata', '`_.']}, {'$ref': '#/definitions/file-directive'}]}}}, 'readme': {'type': 'object', 'anyOf': [{'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}, {'type': 'object', 'properties': {'content-type': {'type': 'string'}, 'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'additionalProperties': False}], 'required': ['file']}}}, rule='additionalProperties')
+        if data_keys:
+            raise JsonSchemaValueException("" + (name_prefix or "data") + " must not contain "+str(data_keys)+" properties", value=data, name="" + (name_prefix or "data") + "", definition={'$schema': 'http://json-schema.org/draft-07/schema#', '$id': 'https://setuptools.pypa.io/en/latest/userguide/pyproject_config.html', 'title': '``tool.setuptools`` table', '$$description': ['``setuptools``-specific configurations that can be set by users that require', 'customization.', 'These configurations are completely optional and probably can be skipped when', 'creating simple packages. They are equivalent to some of the `Keywords', '`_', 'used by the ``setup.py`` file, and can be set via the ``tool.setuptools`` table.', 'It considers only ``setuptools`` `parameters', '`_', 'that are not covered by :pep:`621`; and intentionally excludes ``dependency_links``', 'and ``setup_requires`` (incompatible with modern workflows/standards).'], 'type': 'object', 'additionalProperties': False, 'properties': {'platforms': {'type': 'array', 'items': {'type': 'string'}}, 'provides': {'$$description': ['Package and virtual package names contained within this package', '**(not supported by pip)**'], 'type': 'array', 'items': {'type': 'string', 'format': 'pep508-identifier'}}, 'obsoletes': {'$$description': ['Packages which this package renders obsolete', '**(not supported by pip)**'], 'type': 'array', 'items': {'type': 'string', 'format': 'pep508-identifier'}}, 'zip-safe': {'$$description': ['Whether the project can be safely installed and run from a zip file.', '**OBSOLETE**: only relevant for ``pkg_resources``, ``easy_install`` and', '``setup.py install`` in the context of ``eggs`` (**DEPRECATED**).'], 'type': 'boolean'}, 'script-files': {'$$description': ['Legacy way of defining scripts (entry-points are preferred).', 'Equivalent to the ``script`` keyword in ``setup.py``', '(it was renamed to avoid confusion with entry-point based ``project.scripts``', 'defined in :pep:`621`).', '**DISCOURAGED**: generic script wrappers are tricky and may not work properly.', 'Whenever possible, please use ``project.scripts`` instead.'], 'type': 'array', 'items': {'type': 'string'}, '$comment': 'TODO: is this field deprecated/should be removed?'}, 'eager-resources': {'$$description': ['Resources that should be extracted together, if any of them is needed,', 'or if any C extensions included in the project are imported.', '**OBSOLETE**: only relevant for ``pkg_resources``, ``easy_install`` and', '``setup.py install`` in the context of ``eggs`` (**DEPRECATED**).'], 'type': 'array', 'items': {'type': 'string'}}, 'packages': {'$$description': ['Packages that should be included in the distribution.', 'It can be given either as a list of package identifiers', 'or as a ``dict``-like structure with a single key ``find``', 'which corresponds to a dynamic call to', '``setuptools.config.expand.find_packages`` function.', 'The ``find`` key is associated with a nested ``dict``-like structure that can', 'contain ``where``, ``include``, ``exclude`` and ``namespaces`` keys,', 'mimicking the keyword arguments of the associated function.'], 'oneOf': [{'title': 'Array of Python package identifiers', 'type': 'array', 'items': {'$id': '#/definitions/package-name', 'title': 'Valid package name', 'description': 'Valid package name (importable or :pep:`561`).', 'type': 'string', 'anyOf': [{'type': 'string', 'format': 'python-module-name-relaxed'}, {'type': 'string', 'format': 'pep561-stub-name'}]}}, {'$id': '#/definitions/find-directive', 'title': "'find:' directive", 'type': 'object', 'additionalProperties': False, 'properties': {'find': {'type': 'object', '$$description': ['Dynamic `package discovery', '`_.'], 'additionalProperties': False, 'properties': {'where': {'description': 'Directories to be searched for packages (Unix-style relative path)', 'type': 'array', 'items': {'type': 'string'}}, 'exclude': {'type': 'array', '$$description': ['Exclude packages that match the values listed in this field.', "Can container shell-style wildcards (e.g. ``'pkg.*'``)"], 'items': {'type': 'string'}}, 'include': {'type': 'array', '$$description': ['Restrict the found packages to just the ones listed in this field.', "Can container shell-style wildcards (e.g. ``'pkg.*'``)"], 'items': {'type': 'string'}}, 'namespaces': {'type': 'boolean', '$$description': ['When ``True``, directories without a ``__init__.py`` file will also', 'be scanned for :pep:`420`-style implicit namespaces']}}}}}]}, 'package-dir': {'$$description': [':class:`dict`-like structure mapping from package names to directories where their', 'code can be found.', 'The empty string (as key) means that all packages are contained inside', 'the given directory will be included in the distribution.'], 'type': 'object', 'additionalProperties': False, 'propertyNames': {'anyOf': [{'const': ''}, {'$id': '#/definitions/package-name', 'title': 'Valid package name', 'description': 'Valid package name (importable or :pep:`561`).', 'type': 'string', 'anyOf': [{'type': 'string', 'format': 'python-module-name-relaxed'}, {'type': 'string', 'format': 'pep561-stub-name'}]}]}, 'patternProperties': {'^.*$': {'type': 'string'}}}, 'package-data': {'$$description': ['Mapping from package names to lists of glob patterns.', 'Usually this option is not needed when using ``include-package-data = true``', 'For more information on how to include data files, check ``setuptools`` `docs', '`_.'], 'type': 'object', 'additionalProperties': False, 'propertyNames': {'anyOf': [{'type': 'string', 'format': 'python-module-name'}, {'const': '*'}]}, 'patternProperties': {'^.*$': {'type': 'array', 'items': {'type': 'string'}}}}, 'include-package-data': {'$$description': ['Automatically include any data files inside the package directories', 'that are specified by ``MANIFEST.in``', 'For more information on how to include data files, check ``setuptools`` `docs', '`_.'], 'type': 'boolean'}, 'exclude-package-data': {'$$description': ['Mapping from package names to lists of glob patterns that should be excluded', 'For more information on how to include data files, check ``setuptools`` `docs', '`_.'], 'type': 'object', 'additionalProperties': False, 'propertyNames': {'anyOf': [{'type': 'string', 'format': 'python-module-name'}, {'const': '*'}]}, 'patternProperties': {'^.*$': {'type': 'array', 'items': {'type': 'string'}}}}, 'namespace-packages': {'type': 'array', 'items': {'type': 'string', 'format': 'python-module-name-relaxed'}, '$comment': 'https://setuptools.pypa.io/en/latest/userguide/package_discovery.html', 'description': '**DEPRECATED**: use implicit namespaces instead (:pep:`420`).'}, 'py-modules': {'description': 'Modules that setuptools will manipulate', 'type': 'array', 'items': {'type': 'string', 'format': 'python-module-name-relaxed'}, '$comment': 'TODO: clarify the relationship with ``packages``'}, 'ext-modules': {'description': 'Extension modules to be compiled by setuptools', 'type': 'array', 'items': {'$id': '#/definitions/ext-module', 'title': 'Extension module', 'description': 'Parameters to construct a :class:`setuptools.Extension` object', 'type': 'object', 'required': ['name', 'sources'], 'additionalProperties': False, 'properties': {'name': {'type': 'string', 'format': 'python-module-name-relaxed'}, 'sources': {'type': 'array', 'items': {'type': 'string'}}, 'include-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'define-macros': {'type': 'array', 'items': {'type': 'array', 'items': [{'description': 'macro name', 'type': 'string'}, {'description': 'macro value', 'oneOf': [{'type': 'string'}, {'type': 'null'}]}], 'additionalItems': False}}, 'undef-macros': {'type': 'array', 'items': {'type': 'string'}}, 'library-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'libraries': {'type': 'array', 'items': {'type': 'string'}}, 'runtime-library-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'extra-objects': {'type': 'array', 'items': {'type': 'string'}}, 'extra-compile-args': {'type': 'array', 'items': {'type': 'string'}}, 'extra-link-args': {'type': 'array', 'items': {'type': 'string'}}, 'export-symbols': {'type': 'array', 'items': {'type': 'string'}}, 'swig-opts': {'type': 'array', 'items': {'type': 'string'}}, 'depends': {'type': 'array', 'items': {'type': 'string'}}, 'language': {'type': 'string'}, 'optional': {'type': 'boolean'}, 'py-limited-api': {'type': 'boolean'}}}}, 'data-files': {'$$description': ['``dict``-like structure where each key represents a directory and', 'the value is a list of glob patterns that should be installed in them.', '**DISCOURAGED**: please notice this might not work as expected with wheels.', 'Whenever possible, consider using data files inside the package directories', '(or create a new namespace package that only contains data files).', 'See `data files support', '`_.'], 'type': 'object', 'patternProperties': {'^.*$': {'type': 'array', 'items': {'type': 'string'}}}}, 'cmdclass': {'$$description': ['Mapping of distutils-style command names to ``setuptools.Command`` subclasses', 'which in turn should be represented by strings with a qualified class name', '(i.e., "dotted" form with module), e.g.::\n\n', '    cmdclass = {mycmd = "pkg.subpkg.module.CommandClass"}\n\n', 'The command class should be a directly defined at the top-level of the', 'containing module (no class nesting).'], 'type': 'object', 'patternProperties': {'^.*$': {'type': 'string', 'format': 'python-qualified-identifier'}}}, 'license-files': {'type': 'array', 'items': {'type': 'string'}, '$$description': ['**PROVISIONAL**: list of glob patterns for all license files being distributed.', '(likely to become standard with :pep:`639`).', "By default: ``['LICEN[CS]E*', 'COPYING*', 'NOTICE*', 'AUTHORS*']``"], '$comment': 'TODO: revise if PEP 639 is accepted. Probably ``project.license-files``?'}, 'dynamic': {'type': 'object', 'description': 'Instructions for loading :pep:`621`-related metadata dynamically', 'additionalProperties': False, 'properties': {'version': {'$$description': ['A version dynamically loaded via either the ``attr:`` or ``file:``', 'directives. Please make sure the given file or attribute respects :pep:`440`.', 'Also ensure to set ``project.dynamic`` accordingly.'], 'oneOf': [{'title': "'attr:' directive", '$id': '#/definitions/attr-directive', '$$description': ['Value is read from a module attribute. Supports callables and iterables;', 'unsupported types are cast via ``str()``'], 'type': 'object', 'additionalProperties': False, 'properties': {'attr': {'type': 'string', 'format': 'python-qualified-identifier'}}, 'required': ['attr']}, {'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}]}, 'classifiers': {'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}, 'description': {'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}, 'entry-points': {'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}, 'dependencies': {'title': "'file:' directive for dependencies", 'allOf': [{'$$description': ['**BETA**: subset of the ``requirements.txt`` format', 'without ``pip`` flags and options', '(one :pep:`508`-compliant string per line,', 'lines that are blank or start with ``#`` are excluded).', 'See `dynamic metadata', '`_.']}, {'$ref': '#/definitions/file-directive'}]}, 'optional-dependencies': {'type': 'object', 'propertyNames': {'type': 'string', 'format': 'pep508-identifier'}, 'additionalProperties': False, 'patternProperties': {'.+': {'title': "'file:' directive for dependencies", 'allOf': [{'$$description': ['**BETA**: subset of the ``requirements.txt`` format', 'without ``pip`` flags and options', '(one :pep:`508`-compliant string per line,', 'lines that are blank or start with ``#`` are excluded).', 'See `dynamic metadata', '`_.']}, {'$ref': '#/definitions/file-directive'}]}}}, 'readme': {'type': 'object', 'anyOf': [{'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}, {'type': 'object', 'properties': {'content-type': {'type': 'string'}, 'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'additionalProperties': False}], 'required': ['file']}}}}, 'definitions': {'package-name': {'$id': '#/definitions/package-name', 'title': 'Valid package name', 'description': 'Valid package name (importable or :pep:`561`).', 'type': 'string', 'anyOf': [{'type': 'string', 'format': 'python-module-name-relaxed'}, {'type': 'string', 'format': 'pep561-stub-name'}]}, 'ext-module': {'$id': '#/definitions/ext-module', 'title': 'Extension module', 'description': 'Parameters to construct a :class:`setuptools.Extension` object', 'type': 'object', 'required': ['name', 'sources'], 'additionalProperties': False, 'properties': {'name': {'type': 'string', 'format': 'python-module-name-relaxed'}, 'sources': {'type': 'array', 'items': {'type': 'string'}}, 'include-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'define-macros': {'type': 'array', 'items': {'type': 'array', 'items': [{'description': 'macro name', 'type': 'string'}, {'description': 'macro value', 'oneOf': [{'type': 'string'}, {'type': 'null'}]}], 'additionalItems': False}}, 'undef-macros': {'type': 'array', 'items': {'type': 'string'}}, 'library-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'libraries': {'type': 'array', 'items': {'type': 'string'}}, 'runtime-library-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'extra-objects': {'type': 'array', 'items': {'type': 'string'}}, 'extra-compile-args': {'type': 'array', 'items': {'type': 'string'}}, 'extra-link-args': {'type': 'array', 'items': {'type': 'string'}}, 'export-symbols': {'type': 'array', 'items': {'type': 'string'}}, 'swig-opts': {'type': 'array', 'items': {'type': 'string'}}, 'depends': {'type': 'array', 'items': {'type': 'string'}}, 'language': {'type': 'string'}, 'optional': {'type': 'boolean'}, 'py-limited-api': {'type': 'boolean'}}}, 'file-directive': {'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}, 'file-directive-for-dependencies': {'title': "'file:' directive for dependencies", 'allOf': [{'$$description': ['**BETA**: subset of the ``requirements.txt`` format', 'without ``pip`` flags and options', '(one :pep:`508`-compliant string per line,', 'lines that are blank or start with ``#`` are excluded).', 'See `dynamic metadata', '`_.']}, {'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}]}, 'attr-directive': {'title': "'attr:' directive", '$id': '#/definitions/attr-directive', '$$description': ['Value is read from a module attribute. Supports callables and iterables;', 'unsupported types are cast via ``str()``'], 'type': 'object', 'additionalProperties': False, 'properties': {'attr': {'type': 'string', 'format': 'python-qualified-identifier'}}, 'required': ['attr']}, 'find-directive': {'$id': '#/definitions/find-directive', 'title': "'find:' directive", 'type': 'object', 'additionalProperties': False, 'properties': {'find': {'type': 'object', '$$description': ['Dynamic `package discovery', '`_.'], 'additionalProperties': False, 'properties': {'where': {'description': 'Directories to be searched for packages (Unix-style relative path)', 'type': 'array', 'items': {'type': 'string'}}, 'exclude': {'type': 'array', '$$description': ['Exclude packages that match the values listed in this field.', "Can container shell-style wildcards (e.g. ``'pkg.*'``)"], 'items': {'type': 'string'}}, 'include': {'type': 'array', '$$description': ['Restrict the found packages to just the ones listed in this field.', "Can container shell-style wildcards (e.g. ``'pkg.*'``)"], 'items': {'type': 'string'}}, 'namespaces': {'type': 'boolean', '$$description': ['When ``True``, directories without a ``__init__.py`` file will also', 'be scanned for :pep:`420`-style implicit namespaces']}}}}}}}, rule='additionalProperties')
+    return data
+
+def validate_https___setuptools_pypa_io_en_latest_userguide_pyproject_config_html__definitions_file_directive_properties_file(data, custom_formats={}, name_prefix=None):
+    data_one_of_count8 = 0
+    if data_one_of_count8 < 2:
+        try:
+            if not isinstance(data, (str)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + " must be string", value=data, name="" + (name_prefix or "data") + "", definition={'type': 'string'}, rule='type')
+            data_one_of_count8 += 1
+        except JsonSchemaValueException: pass
+    if data_one_of_count8 < 2:
+        try:
+            if not isinstance(data, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + " must be array", value=data, name="" + (name_prefix or "data") + "", definition={'type': 'array', 'items': {'type': 'string'}}, rule='type')
+            data_is_list = isinstance(data, (list, tuple))
+            if data_is_list:
+                data_len = len(data)
+                for data_x, data_item in enumerate(data):
+                    if not isinstance(data_item, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + "[{data_x}]".format(**locals()) + " must be string", value=data_item, name="" + (name_prefix or "data") + "[{data_x}]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+            data_one_of_count8 += 1
+        except JsonSchemaValueException: pass
+    if data_one_of_count8 != 1:
+        raise JsonSchemaValueException("" + (name_prefix or "data") + " must be valid exactly by one definition" + (" (" + str(data_one_of_count8) + " matches found)"), value=data, name="" + (name_prefix or "data") + "", definition={'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}, rule='oneOf')
+    return data
+
+def validate_https___setuptools_pypa_io_en_latest_userguide_pyproject_config_html__definitions_file_directive_for_dependencies(data, custom_formats={}, name_prefix=None):
+    validate_https___setuptools_pypa_io_en_latest_userguide_pyproject_config_html__definitions_file_directive(data, custom_formats, (name_prefix or "data") + "")
+    return data
+
+def validate_https___setuptools_pypa_io_en_latest_userguide_pyproject_config_html__definitions_file_directive(data, custom_formats={}, name_prefix=None):
+    if not isinstance(data, (dict)):
+        raise JsonSchemaValueException("" + (name_prefix or "data") + " must be object", value=data, name="" + (name_prefix or "data") + "", definition={'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}, rule='type')
+    data_is_dict = isinstance(data, dict)
+    if data_is_dict:
+        data__missing_keys = set(['file']) - data.keys()
+        if data__missing_keys:
+            raise JsonSchemaValueException("" + (name_prefix or "data") + " must contain " + (str(sorted(data__missing_keys)) + " properties"), value=data, name="" + (name_prefix or "data") + "", definition={'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}, rule='required')
+        data_keys = set(data.keys())
+        if "file" in data_keys:
+            data_keys.remove("file")
+            data__file = data["file"]
+            data__file_one_of_count9 = 0
+            if data__file_one_of_count9 < 2:
+                try:
+                    if not isinstance(data__file, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".file must be string", value=data__file, name="" + (name_prefix or "data") + ".file", definition={'type': 'string'}, rule='type')
+                    data__file_one_of_count9 += 1
+                except JsonSchemaValueException: pass
+            if data__file_one_of_count9 < 2:
+                try:
+                    if not isinstance(data__file, (list, tuple)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".file must be array", value=data__file, name="" + (name_prefix or "data") + ".file", definition={'type': 'array', 'items': {'type': 'string'}}, rule='type')
+                    data__file_is_list = isinstance(data__file, (list, tuple))
+                    if data__file_is_list:
+                        data__file_len = len(data__file)
+                        for data__file_x, data__file_item in enumerate(data__file):
+                            if not isinstance(data__file_item, (str)):
+                                raise JsonSchemaValueException("" + (name_prefix or "data") + ".file[{data__file_x}]".format(**locals()) + " must be string", value=data__file_item, name="" + (name_prefix or "data") + ".file[{data__file_x}]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+                    data__file_one_of_count9 += 1
+                except JsonSchemaValueException: pass
+            if data__file_one_of_count9 != 1:
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".file must be valid exactly by one definition" + (" (" + str(data__file_one_of_count9) + " matches found)"), value=data__file, name="" + (name_prefix or "data") + ".file", definition={'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}, rule='oneOf')
+        if data_keys:
+            raise JsonSchemaValueException("" + (name_prefix or "data") + " must not contain "+str(data_keys)+" properties", value=data, name="" + (name_prefix or "data") + "", definition={'$id': '#/definitions/file-directive', 'title': "'file:' directive", 'description': 'Value is read from a file (or list of files and then concatenated)', 'type': 'object', 'additionalProperties': False, 'properties': {'file': {'oneOf': [{'type': 'string'}, {'type': 'array', 'items': {'type': 'string'}}]}}, 'required': ['file']}, rule='additionalProperties')
+    return data
+
+def validate_https___setuptools_pypa_io_en_latest_userguide_pyproject_config_html__definitions_attr_directive(data, custom_formats={}, name_prefix=None):
+    if not isinstance(data, (dict)):
+        raise JsonSchemaValueException("" + (name_prefix or "data") + " must be object", value=data, name="" + (name_prefix or "data") + "", definition={'title': "'attr:' directive", '$id': '#/definitions/attr-directive', '$$description': ['Value is read from a module attribute. Supports callables and iterables;', 'unsupported types are cast via ``str()``'], 'type': 'object', 'additionalProperties': False, 'properties': {'attr': {'type': 'string', 'format': 'python-qualified-identifier'}}, 'required': ['attr']}, rule='type')
+    data_is_dict = isinstance(data, dict)
+    if data_is_dict:
+        data__missing_keys = set(['attr']) - data.keys()
+        if data__missing_keys:
+            raise JsonSchemaValueException("" + (name_prefix or "data") + " must contain " + (str(sorted(data__missing_keys)) + " properties"), value=data, name="" + (name_prefix or "data") + "", definition={'title': "'attr:' directive", '$id': '#/definitions/attr-directive', '$$description': ['Value is read from a module attribute. Supports callables and iterables;', 'unsupported types are cast via ``str()``'], 'type': 'object', 'additionalProperties': False, 'properties': {'attr': {'type': 'string', 'format': 'python-qualified-identifier'}}, 'required': ['attr']}, rule='required')
+        data_keys = set(data.keys())
+        if "attr" in data_keys:
+            data_keys.remove("attr")
+            data__attr = data["attr"]
+            if not isinstance(data__attr, (str)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".attr must be string", value=data__attr, name="" + (name_prefix or "data") + ".attr", definition={'type': 'string', 'format': 'python-qualified-identifier'}, rule='type')
+            if isinstance(data__attr, str):
+                if not custom_formats["python-qualified-identifier"](data__attr):
+                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".attr must be python-qualified-identifier", value=data__attr, name="" + (name_prefix or "data") + ".attr", definition={'type': 'string', 'format': 'python-qualified-identifier'}, rule='format')
+        if data_keys:
+            raise JsonSchemaValueException("" + (name_prefix or "data") + " must not contain "+str(data_keys)+" properties", value=data, name="" + (name_prefix or "data") + "", definition={'title': "'attr:' directive", '$id': '#/definitions/attr-directive', '$$description': ['Value is read from a module attribute. Supports callables and iterables;', 'unsupported types are cast via ``str()``'], 'type': 'object', 'additionalProperties': False, 'properties': {'attr': {'type': 'string', 'format': 'python-qualified-identifier'}}, 'required': ['attr']}, rule='additionalProperties')
+    return data
+
+def validate_https___setuptools_pypa_io_en_latest_userguide_pyproject_config_html__definitions_ext_module(data, custom_formats={}, name_prefix=None):
+    if not isinstance(data, (dict)):
+        raise JsonSchemaValueException("" + (name_prefix or "data") + " must be object", value=data, name="" + (name_prefix or "data") + "", definition={'$id': '#/definitions/ext-module', 'title': 'Extension module', 'description': 'Parameters to construct a :class:`setuptools.Extension` object', 'type': 'object', 'required': ['name', 'sources'], 'additionalProperties': False, 'properties': {'name': {'type': 'string', 'format': 'python-module-name-relaxed'}, 'sources': {'type': 'array', 'items': {'type': 'string'}}, 'include-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'define-macros': {'type': 'array', 'items': {'type': 'array', 'items': [{'description': 'macro name', 'type': 'string'}, {'description': 'macro value', 'oneOf': [{'type': 'string'}, {'type': 'null'}]}], 'additionalItems': False}}, 'undef-macros': {'type': 'array', 'items': {'type': 'string'}}, 'library-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'libraries': {'type': 'array', 'items': {'type': 'string'}}, 'runtime-library-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'extra-objects': {'type': 'array', 'items': {'type': 'string'}}, 'extra-compile-args': {'type': 'array', 'items': {'type': 'string'}}, 'extra-link-args': {'type': 'array', 'items': {'type': 'string'}}, 'export-symbols': {'type': 'array', 'items': {'type': 'string'}}, 'swig-opts': {'type': 'array', 'items': {'type': 'string'}}, 'depends': {'type': 'array', 'items': {'type': 'string'}}, 'language': {'type': 'string'}, 'optional': {'type': 'boolean'}, 'py-limited-api': {'type': 'boolean'}}}, rule='type')
+    data_is_dict = isinstance(data, dict)
+    if data_is_dict:
+        data__missing_keys = set(['name', 'sources']) - data.keys()
+        if data__missing_keys:
+            raise JsonSchemaValueException("" + (name_prefix or "data") + " must contain " + (str(sorted(data__missing_keys)) + " properties"), value=data, name="" + (name_prefix or "data") + "", definition={'$id': '#/definitions/ext-module', 'title': 'Extension module', 'description': 'Parameters to construct a :class:`setuptools.Extension` object', 'type': 'object', 'required': ['name', 'sources'], 'additionalProperties': False, 'properties': {'name': {'type': 'string', 'format': 'python-module-name-relaxed'}, 'sources': {'type': 'array', 'items': {'type': 'string'}}, 'include-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'define-macros': {'type': 'array', 'items': {'type': 'array', 'items': [{'description': 'macro name', 'type': 'string'}, {'description': 'macro value', 'oneOf': [{'type': 'string'}, {'type': 'null'}]}], 'additionalItems': False}}, 'undef-macros': {'type': 'array', 'items': {'type': 'string'}}, 'library-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'libraries': {'type': 'array', 'items': {'type': 'string'}}, 'runtime-library-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'extra-objects': {'type': 'array', 'items': {'type': 'string'}}, 'extra-compile-args': {'type': 'array', 'items': {'type': 'string'}}, 'extra-link-args': {'type': 'array', 'items': {'type': 'string'}}, 'export-symbols': {'type': 'array', 'items': {'type': 'string'}}, 'swig-opts': {'type': 'array', 'items': {'type': 'string'}}, 'depends': {'type': 'array', 'items': {'type': 'string'}}, 'language': {'type': 'string'}, 'optional': {'type': 'boolean'}, 'py-limited-api': {'type': 'boolean'}}}, rule='required')
+        data_keys = set(data.keys())
+        if "name" in data_keys:
+            data_keys.remove("name")
+            data__name = data["name"]
+            if not isinstance(data__name, (str)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".name must be string", value=data__name, name="" + (name_prefix or "data") + ".name", definition={'type': 'string', 'format': 'python-module-name-relaxed'}, rule='type')
+            if isinstance(data__name, str):
+                if not custom_formats["python-module-name-relaxed"](data__name):
+                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".name must be python-module-name-relaxed", value=data__name, name="" + (name_prefix or "data") + ".name", definition={'type': 'string', 'format': 'python-module-name-relaxed'}, rule='format')
+        if "sources" in data_keys:
+            data_keys.remove("sources")
+            data__sources = data["sources"]
+            if not isinstance(data__sources, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".sources must be array", value=data__sources, name="" + (name_prefix or "data") + ".sources", definition={'type': 'array', 'items': {'type': 'string'}}, rule='type')
+            data__sources_is_list = isinstance(data__sources, (list, tuple))
+            if data__sources_is_list:
+                data__sources_len = len(data__sources)
+                for data__sources_x, data__sources_item in enumerate(data__sources):
+                    if not isinstance(data__sources_item, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".sources[{data__sources_x}]".format(**locals()) + " must be string", value=data__sources_item, name="" + (name_prefix or "data") + ".sources[{data__sources_x}]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+        if "include-dirs" in data_keys:
+            data_keys.remove("include-dirs")
+            data__includedirs = data["include-dirs"]
+            if not isinstance(data__includedirs, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".include-dirs must be array", value=data__includedirs, name="" + (name_prefix or "data") + ".include-dirs", definition={'type': 'array', 'items': {'type': 'string'}}, rule='type')
+            data__includedirs_is_list = isinstance(data__includedirs, (list, tuple))
+            if data__includedirs_is_list:
+                data__includedirs_len = len(data__includedirs)
+                for data__includedirs_x, data__includedirs_item in enumerate(data__includedirs):
+                    if not isinstance(data__includedirs_item, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".include-dirs[{data__includedirs_x}]".format(**locals()) + " must be string", value=data__includedirs_item, name="" + (name_prefix or "data") + ".include-dirs[{data__includedirs_x}]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+        if "define-macros" in data_keys:
+            data_keys.remove("define-macros")
+            data__definemacros = data["define-macros"]
+            if not isinstance(data__definemacros, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".define-macros must be array", value=data__definemacros, name="" + (name_prefix or "data") + ".define-macros", definition={'type': 'array', 'items': {'type': 'array', 'items': [{'description': 'macro name', 'type': 'string'}, {'description': 'macro value', 'oneOf': [{'type': 'string'}, {'type': 'null'}]}], 'additionalItems': False}}, rule='type')
+            data__definemacros_is_list = isinstance(data__definemacros, (list, tuple))
+            if data__definemacros_is_list:
+                data__definemacros_len = len(data__definemacros)
+                for data__definemacros_x, data__definemacros_item in enumerate(data__definemacros):
+                    if not isinstance(data__definemacros_item, (list, tuple)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".define-macros[{data__definemacros_x}]".format(**locals()) + " must be array", value=data__definemacros_item, name="" + (name_prefix or "data") + ".define-macros[{data__definemacros_x}]".format(**locals()) + "", definition={'type': 'array', 'items': [{'description': 'macro name', 'type': 'string'}, {'description': 'macro value', 'oneOf': [{'type': 'string'}, {'type': 'null'}]}], 'additionalItems': False}, rule='type')
+                    data__definemacros_item_is_list = isinstance(data__definemacros_item, (list, tuple))
+                    if data__definemacros_item_is_list:
+                        data__definemacros_item_len = len(data__definemacros_item)
+                        if data__definemacros_item_len > 0:
+                            data__definemacros_item__0 = data__definemacros_item[0]
+                            if not isinstance(data__definemacros_item__0, (str)):
+                                raise JsonSchemaValueException("" + (name_prefix or "data") + ".define-macros[{data__definemacros_x}][0]".format(**locals()) + " must be string", value=data__definemacros_item__0, name="" + (name_prefix or "data") + ".define-macros[{data__definemacros_x}][0]".format(**locals()) + "", definition={'description': 'macro name', 'type': 'string'}, rule='type')
+                        if data__definemacros_item_len > 1:
+                            data__definemacros_item__1 = data__definemacros_item[1]
+                            data__definemacros_item__1_one_of_count10 = 0
+                            if data__definemacros_item__1_one_of_count10 < 2:
+                                try:
+                                    if not isinstance(data__definemacros_item__1, (str)):
+                                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".define-macros[{data__definemacros_x}][1]".format(**locals()) + " must be string", value=data__definemacros_item__1, name="" + (name_prefix or "data") + ".define-macros[{data__definemacros_x}][1]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+                                    data__definemacros_item__1_one_of_count10 += 1
+                                except JsonSchemaValueException: pass
+                            if data__definemacros_item__1_one_of_count10 < 2:
+                                try:
+                                    if not isinstance(data__definemacros_item__1, (NoneType)):
+                                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".define-macros[{data__definemacros_x}][1]".format(**locals()) + " must be null", value=data__definemacros_item__1, name="" + (name_prefix or "data") + ".define-macros[{data__definemacros_x}][1]".format(**locals()) + "", definition={'type': 'null'}, rule='type')
+                                    data__definemacros_item__1_one_of_count10 += 1
+                                except JsonSchemaValueException: pass
+                            if data__definemacros_item__1_one_of_count10 != 1:
+                                raise JsonSchemaValueException("" + (name_prefix or "data") + ".define-macros[{data__definemacros_x}][1]".format(**locals()) + " must be valid exactly by one definition" + (" (" + str(data__definemacros_item__1_one_of_count10) + " matches found)"), value=data__definemacros_item__1, name="" + (name_prefix or "data") + ".define-macros[{data__definemacros_x}][1]".format(**locals()) + "", definition={'description': 'macro value', 'oneOf': [{'type': 'string'}, {'type': 'null'}]}, rule='oneOf')
+                        if data__definemacros_item_len > 2:
+                            raise JsonSchemaValueException("" + (name_prefix or "data") + ".define-macros[{data__definemacros_x}]".format(**locals()) + " must contain only specified items", value=data__definemacros_item, name="" + (name_prefix or "data") + ".define-macros[{data__definemacros_x}]".format(**locals()) + "", definition={'type': 'array', 'items': [{'description': 'macro name', 'type': 'string'}, {'description': 'macro value', 'oneOf': [{'type': 'string'}, {'type': 'null'}]}], 'additionalItems': False}, rule='items')
+        if "undef-macros" in data_keys:
+            data_keys.remove("undef-macros")
+            data__undefmacros = data["undef-macros"]
+            if not isinstance(data__undefmacros, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".undef-macros must be array", value=data__undefmacros, name="" + (name_prefix or "data") + ".undef-macros", definition={'type': 'array', 'items': {'type': 'string'}}, rule='type')
+            data__undefmacros_is_list = isinstance(data__undefmacros, (list, tuple))
+            if data__undefmacros_is_list:
+                data__undefmacros_len = len(data__undefmacros)
+                for data__undefmacros_x, data__undefmacros_item in enumerate(data__undefmacros):
+                    if not isinstance(data__undefmacros_item, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".undef-macros[{data__undefmacros_x}]".format(**locals()) + " must be string", value=data__undefmacros_item, name="" + (name_prefix or "data") + ".undef-macros[{data__undefmacros_x}]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+        if "library-dirs" in data_keys:
+            data_keys.remove("library-dirs")
+            data__librarydirs = data["library-dirs"]
+            if not isinstance(data__librarydirs, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".library-dirs must be array", value=data__librarydirs, name="" + (name_prefix or "data") + ".library-dirs", definition={'type': 'array', 'items': {'type': 'string'}}, rule='type')
+            data__librarydirs_is_list = isinstance(data__librarydirs, (list, tuple))
+            if data__librarydirs_is_list:
+                data__librarydirs_len = len(data__librarydirs)
+                for data__librarydirs_x, data__librarydirs_item in enumerate(data__librarydirs):
+                    if not isinstance(data__librarydirs_item, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".library-dirs[{data__librarydirs_x}]".format(**locals()) + " must be string", value=data__librarydirs_item, name="" + (name_prefix or "data") + ".library-dirs[{data__librarydirs_x}]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+        if "libraries" in data_keys:
+            data_keys.remove("libraries")
+            data__libraries = data["libraries"]
+            if not isinstance(data__libraries, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".libraries must be array", value=data__libraries, name="" + (name_prefix or "data") + ".libraries", definition={'type': 'array', 'items': {'type': 'string'}}, rule='type')
+            data__libraries_is_list = isinstance(data__libraries, (list, tuple))
+            if data__libraries_is_list:
+                data__libraries_len = len(data__libraries)
+                for data__libraries_x, data__libraries_item in enumerate(data__libraries):
+                    if not isinstance(data__libraries_item, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".libraries[{data__libraries_x}]".format(**locals()) + " must be string", value=data__libraries_item, name="" + (name_prefix or "data") + ".libraries[{data__libraries_x}]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+        if "runtime-library-dirs" in data_keys:
+            data_keys.remove("runtime-library-dirs")
+            data__runtimelibrarydirs = data["runtime-library-dirs"]
+            if not isinstance(data__runtimelibrarydirs, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".runtime-library-dirs must be array", value=data__runtimelibrarydirs, name="" + (name_prefix or "data") + ".runtime-library-dirs", definition={'type': 'array', 'items': {'type': 'string'}}, rule='type')
+            data__runtimelibrarydirs_is_list = isinstance(data__runtimelibrarydirs, (list, tuple))
+            if data__runtimelibrarydirs_is_list:
+                data__runtimelibrarydirs_len = len(data__runtimelibrarydirs)
+                for data__runtimelibrarydirs_x, data__runtimelibrarydirs_item in enumerate(data__runtimelibrarydirs):
+                    if not isinstance(data__runtimelibrarydirs_item, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".runtime-library-dirs[{data__runtimelibrarydirs_x}]".format(**locals()) + " must be string", value=data__runtimelibrarydirs_item, name="" + (name_prefix or "data") + ".runtime-library-dirs[{data__runtimelibrarydirs_x}]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+        if "extra-objects" in data_keys:
+            data_keys.remove("extra-objects")
+            data__extraobjects = data["extra-objects"]
+            if not isinstance(data__extraobjects, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".extra-objects must be array", value=data__extraobjects, name="" + (name_prefix or "data") + ".extra-objects", definition={'type': 'array', 'items': {'type': 'string'}}, rule='type')
+            data__extraobjects_is_list = isinstance(data__extraobjects, (list, tuple))
+            if data__extraobjects_is_list:
+                data__extraobjects_len = len(data__extraobjects)
+                for data__extraobjects_x, data__extraobjects_item in enumerate(data__extraobjects):
+                    if not isinstance(data__extraobjects_item, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".extra-objects[{data__extraobjects_x}]".format(**locals()) + " must be string", value=data__extraobjects_item, name="" + (name_prefix or "data") + ".extra-objects[{data__extraobjects_x}]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+        if "extra-compile-args" in data_keys:
+            data_keys.remove("extra-compile-args")
+            data__extracompileargs = data["extra-compile-args"]
+            if not isinstance(data__extracompileargs, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".extra-compile-args must be array", value=data__extracompileargs, name="" + (name_prefix or "data") + ".extra-compile-args", definition={'type': 'array', 'items': {'type': 'string'}}, rule='type')
+            data__extracompileargs_is_list = isinstance(data__extracompileargs, (list, tuple))
+            if data__extracompileargs_is_list:
+                data__extracompileargs_len = len(data__extracompileargs)
+                for data__extracompileargs_x, data__extracompileargs_item in enumerate(data__extracompileargs):
+                    if not isinstance(data__extracompileargs_item, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".extra-compile-args[{data__extracompileargs_x}]".format(**locals()) + " must be string", value=data__extracompileargs_item, name="" + (name_prefix or "data") + ".extra-compile-args[{data__extracompileargs_x}]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+        if "extra-link-args" in data_keys:
+            data_keys.remove("extra-link-args")
+            data__extralinkargs = data["extra-link-args"]
+            if not isinstance(data__extralinkargs, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".extra-link-args must be array", value=data__extralinkargs, name="" + (name_prefix or "data") + ".extra-link-args", definition={'type': 'array', 'items': {'type': 'string'}}, rule='type')
+            data__extralinkargs_is_list = isinstance(data__extralinkargs, (list, tuple))
+            if data__extralinkargs_is_list:
+                data__extralinkargs_len = len(data__extralinkargs)
+                for data__extralinkargs_x, data__extralinkargs_item in enumerate(data__extralinkargs):
+                    if not isinstance(data__extralinkargs_item, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".extra-link-args[{data__extralinkargs_x}]".format(**locals()) + " must be string", value=data__extralinkargs_item, name="" + (name_prefix or "data") + ".extra-link-args[{data__extralinkargs_x}]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+        if "export-symbols" in data_keys:
+            data_keys.remove("export-symbols")
+            data__exportsymbols = data["export-symbols"]
+            if not isinstance(data__exportsymbols, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".export-symbols must be array", value=data__exportsymbols, name="" + (name_prefix or "data") + ".export-symbols", definition={'type': 'array', 'items': {'type': 'string'}}, rule='type')
+            data__exportsymbols_is_list = isinstance(data__exportsymbols, (list, tuple))
+            if data__exportsymbols_is_list:
+                data__exportsymbols_len = len(data__exportsymbols)
+                for data__exportsymbols_x, data__exportsymbols_item in enumerate(data__exportsymbols):
+                    if not isinstance(data__exportsymbols_item, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".export-symbols[{data__exportsymbols_x}]".format(**locals()) + " must be string", value=data__exportsymbols_item, name="" + (name_prefix or "data") + ".export-symbols[{data__exportsymbols_x}]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+        if "swig-opts" in data_keys:
+            data_keys.remove("swig-opts")
+            data__swigopts = data["swig-opts"]
+            if not isinstance(data__swigopts, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".swig-opts must be array", value=data__swigopts, name="" + (name_prefix or "data") + ".swig-opts", definition={'type': 'array', 'items': {'type': 'string'}}, rule='type')
+            data__swigopts_is_list = isinstance(data__swigopts, (list, tuple))
+            if data__swigopts_is_list:
+                data__swigopts_len = len(data__swigopts)
+                for data__swigopts_x, data__swigopts_item in enumerate(data__swigopts):
+                    if not isinstance(data__swigopts_item, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".swig-opts[{data__swigopts_x}]".format(**locals()) + " must be string", value=data__swigopts_item, name="" + (name_prefix or "data") + ".swig-opts[{data__swigopts_x}]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+        if "depends" in data_keys:
+            data_keys.remove("depends")
+            data__depends = data["depends"]
+            if not isinstance(data__depends, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".depends must be array", value=data__depends, name="" + (name_prefix or "data") + ".depends", definition={'type': 'array', 'items': {'type': 'string'}}, rule='type')
+            data__depends_is_list = isinstance(data__depends, (list, tuple))
+            if data__depends_is_list:
+                data__depends_len = len(data__depends)
+                for data__depends_x, data__depends_item in enumerate(data__depends):
+                    if not isinstance(data__depends_item, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".depends[{data__depends_x}]".format(**locals()) + " must be string", value=data__depends_item, name="" + (name_prefix or "data") + ".depends[{data__depends_x}]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+        if "language" in data_keys:
+            data_keys.remove("language")
+            data__language = data["language"]
+            if not isinstance(data__language, (str)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".language must be string", value=data__language, name="" + (name_prefix or "data") + ".language", definition={'type': 'string'}, rule='type')
+        if "optional" in data_keys:
+            data_keys.remove("optional")
+            data__optional = data["optional"]
+            if not isinstance(data__optional, (bool)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".optional must be boolean", value=data__optional, name="" + (name_prefix or "data") + ".optional", definition={'type': 'boolean'}, rule='type')
+        if "py-limited-api" in data_keys:
+            data_keys.remove("py-limited-api")
+            data__pylimitedapi = data["py-limited-api"]
+            if not isinstance(data__pylimitedapi, (bool)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".py-limited-api must be boolean", value=data__pylimitedapi, name="" + (name_prefix or "data") + ".py-limited-api", definition={'type': 'boolean'}, rule='type')
+        if data_keys:
+            raise JsonSchemaValueException("" + (name_prefix or "data") + " must not contain "+str(data_keys)+" properties", value=data, name="" + (name_prefix or "data") + "", definition={'$id': '#/definitions/ext-module', 'title': 'Extension module', 'description': 'Parameters to construct a :class:`setuptools.Extension` object', 'type': 'object', 'required': ['name', 'sources'], 'additionalProperties': False, 'properties': {'name': {'type': 'string', 'format': 'python-module-name-relaxed'}, 'sources': {'type': 'array', 'items': {'type': 'string'}}, 'include-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'define-macros': {'type': 'array', 'items': {'type': 'array', 'items': [{'description': 'macro name', 'type': 'string'}, {'description': 'macro value', 'oneOf': [{'type': 'string'}, {'type': 'null'}]}], 'additionalItems': False}}, 'undef-macros': {'type': 'array', 'items': {'type': 'string'}}, 'library-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'libraries': {'type': 'array', 'items': {'type': 'string'}}, 'runtime-library-dirs': {'type': 'array', 'items': {'type': 'string'}}, 'extra-objects': {'type': 'array', 'items': {'type': 'string'}}, 'extra-compile-args': {'type': 'array', 'items': {'type': 'string'}}, 'extra-link-args': {'type': 'array', 'items': {'type': 'string'}}, 'export-symbols': {'type': 'array', 'items': {'type': 'string'}}, 'swig-opts': {'type': 'array', 'items': {'type': 'string'}}, 'depends': {'type': 'array', 'items': {'type': 'string'}}, 'language': {'type': 'string'}, 'optional': {'type': 'boolean'}, 'py-limited-api': {'type': 'boolean'}}}, rule='additionalProperties')
+    return data
+
+def validate_https___setuptools_pypa_io_en_latest_userguide_pyproject_config_html__definitions_find_directive(data, custom_formats={}, name_prefix=None):
+    if not isinstance(data, (dict)):
+        raise JsonSchemaValueException("" + (name_prefix or "data") + " must be object", value=data, name="" + (name_prefix or "data") + "", definition={'$id': '#/definitions/find-directive', 'title': "'find:' directive", 'type': 'object', 'additionalProperties': False, 'properties': {'find': {'type': 'object', '$$description': ['Dynamic `package discovery', '`_.'], 'additionalProperties': False, 'properties': {'where': {'description': 'Directories to be searched for packages (Unix-style relative path)', 'type': 'array', 'items': {'type': 'string'}}, 'exclude': {'type': 'array', '$$description': ['Exclude packages that match the values listed in this field.', "Can container shell-style wildcards (e.g. ``'pkg.*'``)"], 'items': {'type': 'string'}}, 'include': {'type': 'array', '$$description': ['Restrict the found packages to just the ones listed in this field.', "Can container shell-style wildcards (e.g. ``'pkg.*'``)"], 'items': {'type': 'string'}}, 'namespaces': {'type': 'boolean', '$$description': ['When ``True``, directories without a ``__init__.py`` file will also', 'be scanned for :pep:`420`-style implicit namespaces']}}}}}, rule='type')
+    data_is_dict = isinstance(data, dict)
+    if data_is_dict:
+        data_keys = set(data.keys())
+        if "find" in data_keys:
+            data_keys.remove("find")
+            data__find = data["find"]
+            if not isinstance(data__find, (dict)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".find must be object", value=data__find, name="" + (name_prefix or "data") + ".find", definition={'type': 'object', '$$description': ['Dynamic `package discovery', '`_.'], 'additionalProperties': False, 'properties': {'where': {'description': 'Directories to be searched for packages (Unix-style relative path)', 'type': 'array', 'items': {'type': 'string'}}, 'exclude': {'type': 'array', '$$description': ['Exclude packages that match the values listed in this field.', "Can container shell-style wildcards (e.g. ``'pkg.*'``)"], 'items': {'type': 'string'}}, 'include': {'type': 'array', '$$description': ['Restrict the found packages to just the ones listed in this field.', "Can container shell-style wildcards (e.g. ``'pkg.*'``)"], 'items': {'type': 'string'}}, 'namespaces': {'type': 'boolean', '$$description': ['When ``True``, directories without a ``__init__.py`` file will also', 'be scanned for :pep:`420`-style implicit namespaces']}}}, rule='type')
+            data__find_is_dict = isinstance(data__find, dict)
+            if data__find_is_dict:
+                data__find_keys = set(data__find.keys())
+                if "where" in data__find_keys:
+                    data__find_keys.remove("where")
+                    data__find__where = data__find["where"]
+                    if not isinstance(data__find__where, (list, tuple)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".find.where must be array", value=data__find__where, name="" + (name_prefix or "data") + ".find.where", definition={'description': 'Directories to be searched for packages (Unix-style relative path)', 'type': 'array', 'items': {'type': 'string'}}, rule='type')
+                    data__find__where_is_list = isinstance(data__find__where, (list, tuple))
+                    if data__find__where_is_list:
+                        data__find__where_len = len(data__find__where)
+                        for data__find__where_x, data__find__where_item in enumerate(data__find__where):
+                            if not isinstance(data__find__where_item, (str)):
+                                raise JsonSchemaValueException("" + (name_prefix or "data") + ".find.where[{data__find__where_x}]".format(**locals()) + " must be string", value=data__find__where_item, name="" + (name_prefix or "data") + ".find.where[{data__find__where_x}]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+                if "exclude" in data__find_keys:
+                    data__find_keys.remove("exclude")
+                    data__find__exclude = data__find["exclude"]
+                    if not isinstance(data__find__exclude, (list, tuple)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".find.exclude must be array", value=data__find__exclude, name="" + (name_prefix or "data") + ".find.exclude", definition={'type': 'array', '$$description': ['Exclude packages that match the values listed in this field.', "Can container shell-style wildcards (e.g. ``'pkg.*'``)"], 'items': {'type': 'string'}}, rule='type')
+                    data__find__exclude_is_list = isinstance(data__find__exclude, (list, tuple))
+                    if data__find__exclude_is_list:
+                        data__find__exclude_len = len(data__find__exclude)
+                        for data__find__exclude_x, data__find__exclude_item in enumerate(data__find__exclude):
+                            if not isinstance(data__find__exclude_item, (str)):
+                                raise JsonSchemaValueException("" + (name_prefix or "data") + ".find.exclude[{data__find__exclude_x}]".format(**locals()) + " must be string", value=data__find__exclude_item, name="" + (name_prefix or "data") + ".find.exclude[{data__find__exclude_x}]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+                if "include" in data__find_keys:
+                    data__find_keys.remove("include")
+                    data__find__include = data__find["include"]
+                    if not isinstance(data__find__include, (list, tuple)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".find.include must be array", value=data__find__include, name="" + (name_prefix or "data") + ".find.include", definition={'type': 'array', '$$description': ['Restrict the found packages to just the ones listed in this field.', "Can container shell-style wildcards (e.g. ``'pkg.*'``)"], 'items': {'type': 'string'}}, rule='type')
+                    data__find__include_is_list = isinstance(data__find__include, (list, tuple))
+                    if data__find__include_is_list:
+                        data__find__include_len = len(data__find__include)
+                        for data__find__include_x, data__find__include_item in enumerate(data__find__include):
+                            if not isinstance(data__find__include_item, (str)):
+                                raise JsonSchemaValueException("" + (name_prefix or "data") + ".find.include[{data__find__include_x}]".format(**locals()) + " must be string", value=data__find__include_item, name="" + (name_prefix or "data") + ".find.include[{data__find__include_x}]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+                if "namespaces" in data__find_keys:
+                    data__find_keys.remove("namespaces")
+                    data__find__namespaces = data__find["namespaces"]
+                    if not isinstance(data__find__namespaces, (bool)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".find.namespaces must be boolean", value=data__find__namespaces, name="" + (name_prefix or "data") + ".find.namespaces", definition={'type': 'boolean', '$$description': ['When ``True``, directories without a ``__init__.py`` file will also', 'be scanned for :pep:`420`-style implicit namespaces']}, rule='type')
+                if data__find_keys:
+                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".find must not contain "+str(data__find_keys)+" properties", value=data__find, name="" + (name_prefix or "data") + ".find", definition={'type': 'object', '$$description': ['Dynamic `package discovery', '`_.'], 'additionalProperties': False, 'properties': {'where': {'description': 'Directories to be searched for packages (Unix-style relative path)', 'type': 'array', 'items': {'type': 'string'}}, 'exclude': {'type': 'array', '$$description': ['Exclude packages that match the values listed in this field.', "Can container shell-style wildcards (e.g. ``'pkg.*'``)"], 'items': {'type': 'string'}}, 'include': {'type': 'array', '$$description': ['Restrict the found packages to just the ones listed in this field.', "Can container shell-style wildcards (e.g. ``'pkg.*'``)"], 'items': {'type': 'string'}}, 'namespaces': {'type': 'boolean', '$$description': ['When ``True``, directories without a ``__init__.py`` file will also', 'be scanned for :pep:`420`-style implicit namespaces']}}}, rule='additionalProperties')
+        if data_keys:
+            raise JsonSchemaValueException("" + (name_prefix or "data") + " must not contain "+str(data_keys)+" properties", value=data, name="" + (name_prefix or "data") + "", definition={'$id': '#/definitions/find-directive', 'title': "'find:' directive", 'type': 'object', 'additionalProperties': False, 'properties': {'find': {'type': 'object', '$$description': ['Dynamic `package discovery', '`_.'], 'additionalProperties': False, 'properties': {'where': {'description': 'Directories to be searched for packages (Unix-style relative path)', 'type': 'array', 'items': {'type': 'string'}}, 'exclude': {'type': 'array', '$$description': ['Exclude packages that match the values listed in this field.', "Can container shell-style wildcards (e.g. ``'pkg.*'``)"], 'items': {'type': 'string'}}, 'include': {'type': 'array', '$$description': ['Restrict the found packages to just the ones listed in this field.', "Can container shell-style wildcards (e.g. ``'pkg.*'``)"], 'items': {'type': 'string'}}, 'namespaces': {'type': 'boolean', '$$description': ['When ``True``, directories without a ``__init__.py`` file will also', 'be scanned for :pep:`420`-style implicit namespaces']}}}}}, rule='additionalProperties')
+    return data
+
+def validate_https___setuptools_pypa_io_en_latest_userguide_pyproject_config_html__definitions_package_name(data, custom_formats={}, name_prefix=None):
+    if not isinstance(data, (str)):
+        raise JsonSchemaValueException("" + (name_prefix or "data") + " must be string", value=data, name="" + (name_prefix or "data") + "", definition={'$id': '#/definitions/package-name', 'title': 'Valid package name', 'description': 'Valid package name (importable or :pep:`561`).', 'type': 'string', 'anyOf': [{'type': 'string', 'format': 'python-module-name-relaxed'}, {'type': 'string', 'format': 'pep561-stub-name'}]}, rule='type')
+    data_any_of_count11 = 0
+    if not data_any_of_count11:
+        try:
+            if not isinstance(data, (str)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + " must be string", value=data, name="" + (name_prefix or "data") + "", definition={'type': 'string', 'format': 'python-module-name-relaxed'}, rule='type')
+            if isinstance(data, str):
+                if not custom_formats["python-module-name-relaxed"](data):
+                    raise JsonSchemaValueException("" + (name_prefix or "data") + " must be python-module-name-relaxed", value=data, name="" + (name_prefix or "data") + "", definition={'type': 'string', 'format': 'python-module-name-relaxed'}, rule='format')
+            data_any_of_count11 += 1
+        except JsonSchemaValueException: pass
+    if not data_any_of_count11:
+        try:
+            if not isinstance(data, (str)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + " must be string", value=data, name="" + (name_prefix or "data") + "", definition={'type': 'string', 'format': 'pep561-stub-name'}, rule='type')
+            if isinstance(data, str):
+                if not custom_formats["pep561-stub-name"](data):
+                    raise JsonSchemaValueException("" + (name_prefix or "data") + " must be pep561-stub-name", value=data, name="" + (name_prefix or "data") + "", definition={'type': 'string', 'format': 'pep561-stub-name'}, rule='format')
+            data_any_of_count11 += 1
+        except JsonSchemaValueException: pass
+    if not data_any_of_count11:
+        raise JsonSchemaValueException("" + (name_prefix or "data") + " cannot be validated by any definition", value=data, name="" + (name_prefix or "data") + "", definition={'$id': '#/definitions/package-name', 'title': 'Valid package name', 'description': 'Valid package name (importable or :pep:`561`).', 'type': 'string', 'anyOf': [{'type': 'string', 'format': 'python-module-name-relaxed'}, {'type': 'string', 'format': 'pep561-stub-name'}]}, rule='anyOf')
+    return data
+
+def validate_https___setuptools_pypa_io_en_latest_deprecated_distutils_configfile_html(data, custom_formats={}, name_prefix=None):
+    if not isinstance(data, (dict)):
+        raise JsonSchemaValueException("" + (name_prefix or "data") + " must be object", value=data, name="" + (name_prefix or "data") + "", definition={'$schema': 'http://json-schema.org/draft-07/schema#', '$id': 'https://setuptools.pypa.io/en/latest/deprecated/distutils/configfile.html', 'title': '``tool.distutils`` table', '$$description': ['**EXPERIMENTAL** (NOT OFFICIALLY SUPPORTED): Use ``tool.distutils``', 'subtables to configure arguments for ``distutils`` commands.', 'Originally, ``distutils`` allowed developers to configure arguments for', '``setup.py`` commands via `distutils configuration files', '`_.', 'See also `the old Python docs _`.'], 'type': 'object', 'properties': {'global': {'type': 'object', 'description': 'Global options applied to all ``distutils`` commands'}}, 'patternProperties': {'.+': {'type': 'object'}}, '$comment': 'TODO: Is there a practical way of making this schema more specific?'}, rule='type')
+    data_is_dict = isinstance(data, dict)
+    if data_is_dict:
+        data_keys = set(data.keys())
+        if "global" in data_keys:
+            data_keys.remove("global")
+            data__global = data["global"]
+            if not isinstance(data__global, (dict)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".global must be object", value=data__global, name="" + (name_prefix or "data") + ".global", definition={'type': 'object', 'description': 'Global options applied to all ``distutils`` commands'}, rule='type')
+        for data_key, data_val in data.items():
+            if REGEX_PATTERNS['.+'].search(data_key):
+                if data_key in data_keys:
+                    data_keys.remove(data_key)
+                if not isinstance(data_val, (dict)):
+                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".{data_key}".format(**locals()) + " must be object", value=data_val, name="" + (name_prefix or "data") + ".{data_key}".format(**locals()) + "", definition={'type': 'object'}, rule='type')
+    return data
+
+def validate_https___packaging_python_org_en_latest_specifications_pyproject_toml(data, custom_formats={}, name_prefix=None):
+    if not isinstance(data, (dict)):
+        raise JsonSchemaValueException("" + (name_prefix or "data") + " must be object", value=data, name="" + (name_prefix or "data") + "", definition={'$schema': 'http://json-schema.org/draft-07/schema#', '$id': 'https://packaging.python.org/en/latest/specifications/pyproject-toml/', 'title': 'Package metadata stored in the ``project`` table', '$$description': ['Data structure for the **project** table inside ``pyproject.toml``', '(as initially defined in :pep:`621`)'], 'type': 'object', 'properties': {'name': {'type': 'string', 'description': 'The name (primary identifier) of the project. MUST be statically defined.', 'format': 'pep508-identifier'}, 'version': {'type': 'string', 'description': 'The version of the project as supported by :pep:`440`.', 'format': 'pep440'}, 'description': {'type': 'string', '$$description': ['The `summary description of the project', '`_']}, 'readme': {'$$description': ['`Full/detailed description of the project in the form of a README', '`_', "with meaning similar to the one defined in `core metadata's Description", '`_'], 'oneOf': [{'type': 'string', '$$description': ['Relative path to a text file (UTF-8) containing the full description', 'of the project. If the file path ends in case-insensitive ``.md`` or', '``.rst`` suffixes, then the content-type is respectively', '``text/markdown`` or ``text/x-rst``']}, {'type': 'object', 'allOf': [{'anyOf': [{'properties': {'file': {'type': 'string', '$$description': ['Relative path to a text file containing the full description', 'of the project.']}}, 'required': ['file']}, {'properties': {'text': {'type': 'string', 'description': 'Full text describing the project.'}}, 'required': ['text']}]}, {'properties': {'content-type': {'type': 'string', '$$description': ['Content-type (:rfc:`1341`) of the full description', '(e.g. ``text/markdown``). The ``charset`` parameter is assumed', 'UTF-8 when not present.'], '$comment': 'TODO: add regex pattern or format?'}}, 'required': ['content-type']}]}]}, 'requires-python': {'type': 'string', 'format': 'pep508-versionspec', '$$description': ['`The Python version requirements of the project', '`_.']}, 'license': {'description': '`Project license `_.', 'oneOf': [{'type': 'string', 'description': 'An SPDX license identifier', 'format': 'SPDX'}, {'type': 'object', 'properties': {'file': {'type': 'string', '$$description': ['Relative path to the file (UTF-8) which contains the license for the', 'project.']}}, 'required': ['file']}, {'type': 'object', 'properties': {'text': {'type': 'string', '$$description': ['The license of the project whose meaning is that of the', '`License field from the core metadata', '`_.']}}, 'required': ['text']}]}, 'license-files': {'description': 'Paths or globs to paths of license files', 'type': 'array', 'items': {'type': 'string'}}, 'authors': {'type': 'array', 'items': {'$id': '#/definitions/author', 'title': 'Author or Maintainer', '$comment': 'https://peps.python.org/pep-0621/#authors-maintainers', 'type': 'object', 'additionalProperties': False, 'properties': {'name': {'type': 'string', '$$description': ['MUST be a valid email name, i.e. whatever can be put as a name, before an', 'email, in :rfc:`822`.']}, 'email': {'type': 'string', 'format': 'idn-email', 'description': 'MUST be a valid email address'}}}, '$$description': ["The people or organizations considered to be the 'authors' of the project.", 'The exact meaning is open to interpretation (e.g. original or primary authors,', 'current maintainers, or owners of the package).']}, 'maintainers': {'type': 'array', 'items': {'$id': '#/definitions/author', 'title': 'Author or Maintainer', '$comment': 'https://peps.python.org/pep-0621/#authors-maintainers', 'type': 'object', 'additionalProperties': False, 'properties': {'name': {'type': 'string', '$$description': ['MUST be a valid email name, i.e. whatever can be put as a name, before an', 'email, in :rfc:`822`.']}, 'email': {'type': 'string', 'format': 'idn-email', 'description': 'MUST be a valid email address'}}}, '$$description': ["The people or organizations considered to be the 'maintainers' of the project.", 'Similarly to ``authors``, the exact meaning is open to interpretation.']}, 'keywords': {'type': 'array', 'items': {'type': 'string'}, 'description': 'List of keywords to assist searching for the distribution in a larger catalog.'}, 'classifiers': {'type': 'array', 'items': {'type': 'string', 'format': 'trove-classifier', 'description': '`PyPI classifier `_.'}, '$$description': ['`Trove classifiers `_', 'which apply to the project.']}, 'urls': {'type': 'object', 'description': 'URLs associated with the project in the form ``label => value``.', 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', 'format': 'url'}}}, 'scripts': {'$id': '#/definitions/entry-point-group', 'title': 'Entry-points', 'type': 'object', '$$description': ['Entry-points are grouped together to indicate what sort of capabilities they', 'provide.', 'See the `packaging guides', '`_', 'and `setuptools docs', '`_', 'for more information.'], 'propertyNames': {'format': 'python-entrypoint-name'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', '$$description': ['Reference to a Python object. It is either in the form', '``importable.module``, or ``importable.module:object.attr``.'], 'format': 'python-entrypoint-reference', '$comment': 'https://packaging.python.org/specifications/entry-points/'}}}, 'gui-scripts': {'$id': '#/definitions/entry-point-group', 'title': 'Entry-points', 'type': 'object', '$$description': ['Entry-points are grouped together to indicate what sort of capabilities they', 'provide.', 'See the `packaging guides', '`_', 'and `setuptools docs', '`_', 'for more information.'], 'propertyNames': {'format': 'python-entrypoint-name'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', '$$description': ['Reference to a Python object. It is either in the form', '``importable.module``, or ``importable.module:object.attr``.'], 'format': 'python-entrypoint-reference', '$comment': 'https://packaging.python.org/specifications/entry-points/'}}}, 'entry-points': {'$$description': ['Instruct the installer to expose the given modules/functions via', '``entry-point`` discovery mechanism (useful for plugins).', 'More information available in the `Python packaging guide', '`_.'], 'propertyNames': {'format': 'python-entrypoint-group'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'$id': '#/definitions/entry-point-group', 'title': 'Entry-points', 'type': 'object', '$$description': ['Entry-points are grouped together to indicate what sort of capabilities they', 'provide.', 'See the `packaging guides', '`_', 'and `setuptools docs', '`_', 'for more information.'], 'propertyNames': {'format': 'python-entrypoint-name'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', '$$description': ['Reference to a Python object. It is either in the form', '``importable.module``, or ``importable.module:object.attr``.'], 'format': 'python-entrypoint-reference', '$comment': 'https://packaging.python.org/specifications/entry-points/'}}}}}, 'dependencies': {'type': 'array', 'description': 'Project (mandatory) dependencies.', 'items': {'$id': '#/definitions/dependency', 'title': 'Dependency', 'type': 'string', 'description': 'Project dependency specification according to PEP 508', 'format': 'pep508'}}, 'optional-dependencies': {'type': 'object', 'description': 'Optional dependency for the project', 'propertyNames': {'format': 'pep508-identifier'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'array', 'items': {'$id': '#/definitions/dependency', 'title': 'Dependency', 'type': 'string', 'description': 'Project dependency specification according to PEP 508', 'format': 'pep508'}}}}, 'dynamic': {'type': 'array', '$$description': ['Specifies which fields are intentionally unspecified and expected to be', 'dynamically provided by build tools'], 'items': {'enum': ['version', 'description', 'readme', 'requires-python', 'license', 'license-files', 'authors', 'maintainers', 'keywords', 'classifiers', 'urls', 'scripts', 'gui-scripts', 'entry-points', 'dependencies', 'optional-dependencies']}}}, 'required': ['name'], 'additionalProperties': False, 'allOf': [{'if': {'not': {'required': ['dynamic'], 'properties': {'dynamic': {'contains': {'const': 'version'}, '$$description': ['version is listed in ``dynamic``']}}}, '$$comment': ['According to :pep:`621`:', '    If the core metadata specification lists a field as "Required", then', '    the metadata MUST specify the field statically or list it in dynamic', 'In turn, `core metadata`_ defines:', '    The required fields are: Metadata-Version, Name, Version.', '    All the other fields are optional.', 'Since ``Metadata-Version`` is defined by the build back-end, ``name`` and', '``version`` are the only mandatory information in ``pyproject.toml``.', '.. _core metadata: https://packaging.python.org/specifications/core-metadata/']}, 'then': {'required': ['version'], '$$description': ['version should be statically defined in the ``version`` field']}}, {'if': {'required': ['license-files']}, 'then': {'properties': {'license': {'type': 'string'}}}}], 'definitions': {'author': {'$id': '#/definitions/author', 'title': 'Author or Maintainer', '$comment': 'https://peps.python.org/pep-0621/#authors-maintainers', 'type': 'object', 'additionalProperties': False, 'properties': {'name': {'type': 'string', '$$description': ['MUST be a valid email name, i.e. whatever can be put as a name, before an', 'email, in :rfc:`822`.']}, 'email': {'type': 'string', 'format': 'idn-email', 'description': 'MUST be a valid email address'}}}, 'entry-point-group': {'$id': '#/definitions/entry-point-group', 'title': 'Entry-points', 'type': 'object', '$$description': ['Entry-points are grouped together to indicate what sort of capabilities they', 'provide.', 'See the `packaging guides', '`_', 'and `setuptools docs', '`_', 'for more information.'], 'propertyNames': {'format': 'python-entrypoint-name'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', '$$description': ['Reference to a Python object. It is either in the form', '``importable.module``, or ``importable.module:object.attr``.'], 'format': 'python-entrypoint-reference', '$comment': 'https://packaging.python.org/specifications/entry-points/'}}}, 'dependency': {'$id': '#/definitions/dependency', 'title': 'Dependency', 'type': 'string', 'description': 'Project dependency specification according to PEP 508', 'format': 'pep508'}}}, rule='type')
+    try:
+        try:
+            data_is_dict = isinstance(data, dict)
+            if data_is_dict:
+                data__missing_keys = set(['dynamic']) - data.keys()
+                if data__missing_keys:
+                    raise JsonSchemaValueException("" + (name_prefix or "data") + " must contain " + (str(sorted(data__missing_keys)) + " properties"), value=data, name="" + (name_prefix or "data") + "", definition={'required': ['dynamic'], 'properties': {'dynamic': {'contains': {'const': 'version'}, '$$description': ['version is listed in ``dynamic``']}}}, rule='required')
+                data_keys = set(data.keys())
+                if "dynamic" in data_keys:
+                    data_keys.remove("dynamic")
+                    data__dynamic = data["dynamic"]
+                    data__dynamic_is_list = isinstance(data__dynamic, (list, tuple))
+                    if data__dynamic_is_list:
+                        data__dynamic_contains = False
+                        for data__dynamic_key in data__dynamic:
+                            try:
+                                if data__dynamic_key != "version":
+                                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".dynamic must be same as const definition: version", value=data__dynamic_key, name="" + (name_prefix or "data") + ".dynamic", definition={'const': 'version'}, rule='const')
+                                data__dynamic_contains = True
+                                break
+                            except JsonSchemaValueException: pass
+                        if not data__dynamic_contains:
+                            raise JsonSchemaValueException("" + (name_prefix or "data") + ".dynamic must contain one of contains definition", value=data__dynamic, name="" + (name_prefix or "data") + ".dynamic", definition={'contains': {'const': 'version'}, '$$description': ['version is listed in ``dynamic``']}, rule='contains')
+        except JsonSchemaValueException: pass
+        else:
+            raise JsonSchemaValueException("" + (name_prefix or "data") + " must NOT match a disallowed definition", value=data, name="" + (name_prefix or "data") + "", definition={'not': {'required': ['dynamic'], 'properties': {'dynamic': {'contains': {'const': 'version'}, '$$description': ['version is listed in ``dynamic``']}}}, '$$comment': ['According to :pep:`621`:', '    If the core metadata specification lists a field as "Required", then', '    the metadata MUST specify the field statically or list it in dynamic', 'In turn, `core metadata`_ defines:', '    The required fields are: Metadata-Version, Name, Version.', '    All the other fields are optional.', 'Since ``Metadata-Version`` is defined by the build back-end, ``name`` and', '``version`` are the only mandatory information in ``pyproject.toml``.', '.. _core metadata: https://packaging.python.org/specifications/core-metadata/']}, rule='not')
+    except JsonSchemaValueException:
+        pass
+    else:
+        data_is_dict = isinstance(data, dict)
+        if data_is_dict:
+            data__missing_keys = set(['version']) - data.keys()
+            if data__missing_keys:
+                raise JsonSchemaValueException("" + (name_prefix or "data") + " must contain " + (str(sorted(data__missing_keys)) + " properties"), value=data, name="" + (name_prefix or "data") + "", definition={'required': ['version'], '$$description': ['version should be statically defined in the ``version`` field']}, rule='required')
+    try:
+        data_is_dict = isinstance(data, dict)
+        if data_is_dict:
+            data__missing_keys = set(['license-files']) - data.keys()
+            if data__missing_keys:
+                raise JsonSchemaValueException("" + (name_prefix or "data") + " must contain " + (str(sorted(data__missing_keys)) + " properties"), value=data, name="" + (name_prefix or "data") + "", definition={'required': ['license-files']}, rule='required')
+    except JsonSchemaValueException:
+        pass
+    else:
+        data_is_dict = isinstance(data, dict)
+        if data_is_dict:
+            data_keys = set(data.keys())
+            if "license" in data_keys:
+                data_keys.remove("license")
+                data__license = data["license"]
+                if not isinstance(data__license, (str)):
+                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".license must be string", value=data__license, name="" + (name_prefix or "data") + ".license", definition={'type': 'string'}, rule='type')
+    data_is_dict = isinstance(data, dict)
+    if data_is_dict:
+        data__missing_keys = set(['name']) - data.keys()
+        if data__missing_keys:
+            raise JsonSchemaValueException("" + (name_prefix or "data") + " must contain " + (str(sorted(data__missing_keys)) + " properties"), value=data, name="" + (name_prefix or "data") + "", definition={'$schema': 'http://json-schema.org/draft-07/schema#', '$id': 'https://packaging.python.org/en/latest/specifications/pyproject-toml/', 'title': 'Package metadata stored in the ``project`` table', '$$description': ['Data structure for the **project** table inside ``pyproject.toml``', '(as initially defined in :pep:`621`)'], 'type': 'object', 'properties': {'name': {'type': 'string', 'description': 'The name (primary identifier) of the project. MUST be statically defined.', 'format': 'pep508-identifier'}, 'version': {'type': 'string', 'description': 'The version of the project as supported by :pep:`440`.', 'format': 'pep440'}, 'description': {'type': 'string', '$$description': ['The `summary description of the project', '`_']}, 'readme': {'$$description': ['`Full/detailed description of the project in the form of a README', '`_', "with meaning similar to the one defined in `core metadata's Description", '`_'], 'oneOf': [{'type': 'string', '$$description': ['Relative path to a text file (UTF-8) containing the full description', 'of the project. If the file path ends in case-insensitive ``.md`` or', '``.rst`` suffixes, then the content-type is respectively', '``text/markdown`` or ``text/x-rst``']}, {'type': 'object', 'allOf': [{'anyOf': [{'properties': {'file': {'type': 'string', '$$description': ['Relative path to a text file containing the full description', 'of the project.']}}, 'required': ['file']}, {'properties': {'text': {'type': 'string', 'description': 'Full text describing the project.'}}, 'required': ['text']}]}, {'properties': {'content-type': {'type': 'string', '$$description': ['Content-type (:rfc:`1341`) of the full description', '(e.g. ``text/markdown``). The ``charset`` parameter is assumed', 'UTF-8 when not present.'], '$comment': 'TODO: add regex pattern or format?'}}, 'required': ['content-type']}]}]}, 'requires-python': {'type': 'string', 'format': 'pep508-versionspec', '$$description': ['`The Python version requirements of the project', '`_.']}, 'license': {'description': '`Project license `_.', 'oneOf': [{'type': 'string', 'description': 'An SPDX license identifier', 'format': 'SPDX'}, {'type': 'object', 'properties': {'file': {'type': 'string', '$$description': ['Relative path to the file (UTF-8) which contains the license for the', 'project.']}}, 'required': ['file']}, {'type': 'object', 'properties': {'text': {'type': 'string', '$$description': ['The license of the project whose meaning is that of the', '`License field from the core metadata', '`_.']}}, 'required': ['text']}]}, 'license-files': {'description': 'Paths or globs to paths of license files', 'type': 'array', 'items': {'type': 'string'}}, 'authors': {'type': 'array', 'items': {'$id': '#/definitions/author', 'title': 'Author or Maintainer', '$comment': 'https://peps.python.org/pep-0621/#authors-maintainers', 'type': 'object', 'additionalProperties': False, 'properties': {'name': {'type': 'string', '$$description': ['MUST be a valid email name, i.e. whatever can be put as a name, before an', 'email, in :rfc:`822`.']}, 'email': {'type': 'string', 'format': 'idn-email', 'description': 'MUST be a valid email address'}}}, '$$description': ["The people or organizations considered to be the 'authors' of the project.", 'The exact meaning is open to interpretation (e.g. original or primary authors,', 'current maintainers, or owners of the package).']}, 'maintainers': {'type': 'array', 'items': {'$id': '#/definitions/author', 'title': 'Author or Maintainer', '$comment': 'https://peps.python.org/pep-0621/#authors-maintainers', 'type': 'object', 'additionalProperties': False, 'properties': {'name': {'type': 'string', '$$description': ['MUST be a valid email name, i.e. whatever can be put as a name, before an', 'email, in :rfc:`822`.']}, 'email': {'type': 'string', 'format': 'idn-email', 'description': 'MUST be a valid email address'}}}, '$$description': ["The people or organizations considered to be the 'maintainers' of the project.", 'Similarly to ``authors``, the exact meaning is open to interpretation.']}, 'keywords': {'type': 'array', 'items': {'type': 'string'}, 'description': 'List of keywords to assist searching for the distribution in a larger catalog.'}, 'classifiers': {'type': 'array', 'items': {'type': 'string', 'format': 'trove-classifier', 'description': '`PyPI classifier `_.'}, '$$description': ['`Trove classifiers `_', 'which apply to the project.']}, 'urls': {'type': 'object', 'description': 'URLs associated with the project in the form ``label => value``.', 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', 'format': 'url'}}}, 'scripts': {'$id': '#/definitions/entry-point-group', 'title': 'Entry-points', 'type': 'object', '$$description': ['Entry-points are grouped together to indicate what sort of capabilities they', 'provide.', 'See the `packaging guides', '`_', 'and `setuptools docs', '`_', 'for more information.'], 'propertyNames': {'format': 'python-entrypoint-name'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', '$$description': ['Reference to a Python object. It is either in the form', '``importable.module``, or ``importable.module:object.attr``.'], 'format': 'python-entrypoint-reference', '$comment': 'https://packaging.python.org/specifications/entry-points/'}}}, 'gui-scripts': {'$id': '#/definitions/entry-point-group', 'title': 'Entry-points', 'type': 'object', '$$description': ['Entry-points are grouped together to indicate what sort of capabilities they', 'provide.', 'See the `packaging guides', '`_', 'and `setuptools docs', '`_', 'for more information.'], 'propertyNames': {'format': 'python-entrypoint-name'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', '$$description': ['Reference to a Python object. It is either in the form', '``importable.module``, or ``importable.module:object.attr``.'], 'format': 'python-entrypoint-reference', '$comment': 'https://packaging.python.org/specifications/entry-points/'}}}, 'entry-points': {'$$description': ['Instruct the installer to expose the given modules/functions via', '``entry-point`` discovery mechanism (useful for plugins).', 'More information available in the `Python packaging guide', '`_.'], 'propertyNames': {'format': 'python-entrypoint-group'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'$id': '#/definitions/entry-point-group', 'title': 'Entry-points', 'type': 'object', '$$description': ['Entry-points are grouped together to indicate what sort of capabilities they', 'provide.', 'See the `packaging guides', '`_', 'and `setuptools docs', '`_', 'for more information.'], 'propertyNames': {'format': 'python-entrypoint-name'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', '$$description': ['Reference to a Python object. It is either in the form', '``importable.module``, or ``importable.module:object.attr``.'], 'format': 'python-entrypoint-reference', '$comment': 'https://packaging.python.org/specifications/entry-points/'}}}}}, 'dependencies': {'type': 'array', 'description': 'Project (mandatory) dependencies.', 'items': {'$id': '#/definitions/dependency', 'title': 'Dependency', 'type': 'string', 'description': 'Project dependency specification according to PEP 508', 'format': 'pep508'}}, 'optional-dependencies': {'type': 'object', 'description': 'Optional dependency for the project', 'propertyNames': {'format': 'pep508-identifier'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'array', 'items': {'$id': '#/definitions/dependency', 'title': 'Dependency', 'type': 'string', 'description': 'Project dependency specification according to PEP 508', 'format': 'pep508'}}}}, 'dynamic': {'type': 'array', '$$description': ['Specifies which fields are intentionally unspecified and expected to be', 'dynamically provided by build tools'], 'items': {'enum': ['version', 'description', 'readme', 'requires-python', 'license', 'license-files', 'authors', 'maintainers', 'keywords', 'classifiers', 'urls', 'scripts', 'gui-scripts', 'entry-points', 'dependencies', 'optional-dependencies']}}}, 'required': ['name'], 'additionalProperties': False, 'allOf': [{'if': {'not': {'required': ['dynamic'], 'properties': {'dynamic': {'contains': {'const': 'version'}, '$$description': ['version is listed in ``dynamic``']}}}, '$$comment': ['According to :pep:`621`:', '    If the core metadata specification lists a field as "Required", then', '    the metadata MUST specify the field statically or list it in dynamic', 'In turn, `core metadata`_ defines:', '    The required fields are: Metadata-Version, Name, Version.', '    All the other fields are optional.', 'Since ``Metadata-Version`` is defined by the build back-end, ``name`` and', '``version`` are the only mandatory information in ``pyproject.toml``.', '.. _core metadata: https://packaging.python.org/specifications/core-metadata/']}, 'then': {'required': ['version'], '$$description': ['version should be statically defined in the ``version`` field']}}, {'if': {'required': ['license-files']}, 'then': {'properties': {'license': {'type': 'string'}}}}], 'definitions': {'author': {'$id': '#/definitions/author', 'title': 'Author or Maintainer', '$comment': 'https://peps.python.org/pep-0621/#authors-maintainers', 'type': 'object', 'additionalProperties': False, 'properties': {'name': {'type': 'string', '$$description': ['MUST be a valid email name, i.e. whatever can be put as a name, before an', 'email, in :rfc:`822`.']}, 'email': {'type': 'string', 'format': 'idn-email', 'description': 'MUST be a valid email address'}}}, 'entry-point-group': {'$id': '#/definitions/entry-point-group', 'title': 'Entry-points', 'type': 'object', '$$description': ['Entry-points are grouped together to indicate what sort of capabilities they', 'provide.', 'See the `packaging guides', '`_', 'and `setuptools docs', '`_', 'for more information.'], 'propertyNames': {'format': 'python-entrypoint-name'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', '$$description': ['Reference to a Python object. It is either in the form', '``importable.module``, or ``importable.module:object.attr``.'], 'format': 'python-entrypoint-reference', '$comment': 'https://packaging.python.org/specifications/entry-points/'}}}, 'dependency': {'$id': '#/definitions/dependency', 'title': 'Dependency', 'type': 'string', 'description': 'Project dependency specification according to PEP 508', 'format': 'pep508'}}}, rule='required')
+        data_keys = set(data.keys())
+        if "name" in data_keys:
+            data_keys.remove("name")
+            data__name = data["name"]
+            if not isinstance(data__name, (str)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".name must be string", value=data__name, name="" + (name_prefix or "data") + ".name", definition={'type': 'string', 'description': 'The name (primary identifier) of the project. MUST be statically defined.', 'format': 'pep508-identifier'}, rule='type')
+            if isinstance(data__name, str):
+                if not custom_formats["pep508-identifier"](data__name):
+                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".name must be pep508-identifier", value=data__name, name="" + (name_prefix or "data") + ".name", definition={'type': 'string', 'description': 'The name (primary identifier) of the project. MUST be statically defined.', 'format': 'pep508-identifier'}, rule='format')
+        if "version" in data_keys:
+            data_keys.remove("version")
+            data__version = data["version"]
+            if not isinstance(data__version, (str)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".version must be string", value=data__version, name="" + (name_prefix or "data") + ".version", definition={'type': 'string', 'description': 'The version of the project as supported by :pep:`440`.', 'format': 'pep440'}, rule='type')
+            if isinstance(data__version, str):
+                if not custom_formats["pep440"](data__version):
+                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".version must be pep440", value=data__version, name="" + (name_prefix or "data") + ".version", definition={'type': 'string', 'description': 'The version of the project as supported by :pep:`440`.', 'format': 'pep440'}, rule='format')
+        if "description" in data_keys:
+            data_keys.remove("description")
+            data__description = data["description"]
+            if not isinstance(data__description, (str)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".description must be string", value=data__description, name="" + (name_prefix or "data") + ".description", definition={'type': 'string', '$$description': ['The `summary description of the project', '`_']}, rule='type')
+        if "readme" in data_keys:
+            data_keys.remove("readme")
+            data__readme = data["readme"]
+            data__readme_one_of_count12 = 0
+            if data__readme_one_of_count12 < 2:
+                try:
+                    if not isinstance(data__readme, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".readme must be string", value=data__readme, name="" + (name_prefix or "data") + ".readme", definition={'type': 'string', '$$description': ['Relative path to a text file (UTF-8) containing the full description', 'of the project. If the file path ends in case-insensitive ``.md`` or', '``.rst`` suffixes, then the content-type is respectively', '``text/markdown`` or ``text/x-rst``']}, rule='type')
+                    data__readme_one_of_count12 += 1
+                except JsonSchemaValueException: pass
+            if data__readme_one_of_count12 < 2:
+                try:
+                    if not isinstance(data__readme, (dict)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".readme must be object", value=data__readme, name="" + (name_prefix or "data") + ".readme", definition={'type': 'object', 'allOf': [{'anyOf': [{'properties': {'file': {'type': 'string', '$$description': ['Relative path to a text file containing the full description', 'of the project.']}}, 'required': ['file']}, {'properties': {'text': {'type': 'string', 'description': 'Full text describing the project.'}}, 'required': ['text']}]}, {'properties': {'content-type': {'type': 'string', '$$description': ['Content-type (:rfc:`1341`) of the full description', '(e.g. ``text/markdown``). The ``charset`` parameter is assumed', 'UTF-8 when not present.'], '$comment': 'TODO: add regex pattern or format?'}}, 'required': ['content-type']}]}, rule='type')
+                    data__readme_any_of_count13 = 0
+                    if not data__readme_any_of_count13:
+                        try:
+                            data__readme_is_dict = isinstance(data__readme, dict)
+                            if data__readme_is_dict:
+                                data__readme__missing_keys = set(['file']) - data__readme.keys()
+                                if data__readme__missing_keys:
+                                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".readme must contain " + (str(sorted(data__readme__missing_keys)) + " properties"), value=data__readme, name="" + (name_prefix or "data") + ".readme", definition={'properties': {'file': {'type': 'string', '$$description': ['Relative path to a text file containing the full description', 'of the project.']}}, 'required': ['file']}, rule='required')
+                                data__readme_keys = set(data__readme.keys())
+                                if "file" in data__readme_keys:
+                                    data__readme_keys.remove("file")
+                                    data__readme__file = data__readme["file"]
+                                    if not isinstance(data__readme__file, (str)):
+                                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".readme.file must be string", value=data__readme__file, name="" + (name_prefix or "data") + ".readme.file", definition={'type': 'string', '$$description': ['Relative path to a text file containing the full description', 'of the project.']}, rule='type')
+                            data__readme_any_of_count13 += 1
+                        except JsonSchemaValueException: pass
+                    if not data__readme_any_of_count13:
+                        try:
+                            data__readme_is_dict = isinstance(data__readme, dict)
+                            if data__readme_is_dict:
+                                data__readme__missing_keys = set(['text']) - data__readme.keys()
+                                if data__readme__missing_keys:
+                                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".readme must contain " + (str(sorted(data__readme__missing_keys)) + " properties"), value=data__readme, name="" + (name_prefix or "data") + ".readme", definition={'properties': {'text': {'type': 'string', 'description': 'Full text describing the project.'}}, 'required': ['text']}, rule='required')
+                                data__readme_keys = set(data__readme.keys())
+                                if "text" in data__readme_keys:
+                                    data__readme_keys.remove("text")
+                                    data__readme__text = data__readme["text"]
+                                    if not isinstance(data__readme__text, (str)):
+                                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".readme.text must be string", value=data__readme__text, name="" + (name_prefix or "data") + ".readme.text", definition={'type': 'string', 'description': 'Full text describing the project.'}, rule='type')
+                            data__readme_any_of_count13 += 1
+                        except JsonSchemaValueException: pass
+                    if not data__readme_any_of_count13:
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".readme cannot be validated by any definition", value=data__readme, name="" + (name_prefix or "data") + ".readme", definition={'anyOf': [{'properties': {'file': {'type': 'string', '$$description': ['Relative path to a text file containing the full description', 'of the project.']}}, 'required': ['file']}, {'properties': {'text': {'type': 'string', 'description': 'Full text describing the project.'}}, 'required': ['text']}]}, rule='anyOf')
+                    data__readme_is_dict = isinstance(data__readme, dict)
+                    if data__readme_is_dict:
+                        data__readme__missing_keys = set(['content-type']) - data__readme.keys()
+                        if data__readme__missing_keys:
+                            raise JsonSchemaValueException("" + (name_prefix or "data") + ".readme must contain " + (str(sorted(data__readme__missing_keys)) + " properties"), value=data__readme, name="" + (name_prefix or "data") + ".readme", definition={'properties': {'content-type': {'type': 'string', '$$description': ['Content-type (:rfc:`1341`) of the full description', '(e.g. ``text/markdown``). The ``charset`` parameter is assumed', 'UTF-8 when not present.'], '$comment': 'TODO: add regex pattern or format?'}}, 'required': ['content-type']}, rule='required')
+                        data__readme_keys = set(data__readme.keys())
+                        if "content-type" in data__readme_keys:
+                            data__readme_keys.remove("content-type")
+                            data__readme__contenttype = data__readme["content-type"]
+                            if not isinstance(data__readme__contenttype, (str)):
+                                raise JsonSchemaValueException("" + (name_prefix or "data") + ".readme.content-type must be string", value=data__readme__contenttype, name="" + (name_prefix or "data") + ".readme.content-type", definition={'type': 'string', '$$description': ['Content-type (:rfc:`1341`) of the full description', '(e.g. ``text/markdown``). The ``charset`` parameter is assumed', 'UTF-8 when not present.'], '$comment': 'TODO: add regex pattern or format?'}, rule='type')
+                    data__readme_one_of_count12 += 1
+                except JsonSchemaValueException: pass
+            if data__readme_one_of_count12 != 1:
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".readme must be valid exactly by one definition" + (" (" + str(data__readme_one_of_count12) + " matches found)"), value=data__readme, name="" + (name_prefix or "data") + ".readme", definition={'$$description': ['`Full/detailed description of the project in the form of a README', '`_', "with meaning similar to the one defined in `core metadata's Description", '`_'], 'oneOf': [{'type': 'string', '$$description': ['Relative path to a text file (UTF-8) containing the full description', 'of the project. If the file path ends in case-insensitive ``.md`` or', '``.rst`` suffixes, then the content-type is respectively', '``text/markdown`` or ``text/x-rst``']}, {'type': 'object', 'allOf': [{'anyOf': [{'properties': {'file': {'type': 'string', '$$description': ['Relative path to a text file containing the full description', 'of the project.']}}, 'required': ['file']}, {'properties': {'text': {'type': 'string', 'description': 'Full text describing the project.'}}, 'required': ['text']}]}, {'properties': {'content-type': {'type': 'string', '$$description': ['Content-type (:rfc:`1341`) of the full description', '(e.g. ``text/markdown``). The ``charset`` parameter is assumed', 'UTF-8 when not present.'], '$comment': 'TODO: add regex pattern or format?'}}, 'required': ['content-type']}]}]}, rule='oneOf')
+        if "requires-python" in data_keys:
+            data_keys.remove("requires-python")
+            data__requirespython = data["requires-python"]
+            if not isinstance(data__requirespython, (str)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".requires-python must be string", value=data__requirespython, name="" + (name_prefix or "data") + ".requires-python", definition={'type': 'string', 'format': 'pep508-versionspec', '$$description': ['`The Python version requirements of the project', '`_.']}, rule='type')
+            if isinstance(data__requirespython, str):
+                if not custom_formats["pep508-versionspec"](data__requirespython):
+                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".requires-python must be pep508-versionspec", value=data__requirespython, name="" + (name_prefix or "data") + ".requires-python", definition={'type': 'string', 'format': 'pep508-versionspec', '$$description': ['`The Python version requirements of the project', '`_.']}, rule='format')
+        if "license" in data_keys:
+            data_keys.remove("license")
+            data__license = data["license"]
+            data__license_one_of_count14 = 0
+            if data__license_one_of_count14 < 2:
+                try:
+                    if not isinstance(data__license, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".license must be string", value=data__license, name="" + (name_prefix or "data") + ".license", definition={'type': 'string', 'description': 'An SPDX license identifier', 'format': 'SPDX'}, rule='type')
+                    if isinstance(data__license, str):
+                        if not custom_formats["SPDX"](data__license):
+                            raise JsonSchemaValueException("" + (name_prefix or "data") + ".license must be SPDX", value=data__license, name="" + (name_prefix or "data") + ".license", definition={'type': 'string', 'description': 'An SPDX license identifier', 'format': 'SPDX'}, rule='format')
+                    data__license_one_of_count14 += 1
+                except JsonSchemaValueException: pass
+            if data__license_one_of_count14 < 2:
+                try:
+                    if not isinstance(data__license, (dict)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".license must be object", value=data__license, name="" + (name_prefix or "data") + ".license", definition={'type': 'object', 'properties': {'file': {'type': 'string', '$$description': ['Relative path to the file (UTF-8) which contains the license for the', 'project.']}}, 'required': ['file']}, rule='type')
+                    data__license_is_dict = isinstance(data__license, dict)
+                    if data__license_is_dict:
+                        data__license__missing_keys = set(['file']) - data__license.keys()
+                        if data__license__missing_keys:
+                            raise JsonSchemaValueException("" + (name_prefix or "data") + ".license must contain " + (str(sorted(data__license__missing_keys)) + " properties"), value=data__license, name="" + (name_prefix or "data") + ".license", definition={'type': 'object', 'properties': {'file': {'type': 'string', '$$description': ['Relative path to the file (UTF-8) which contains the license for the', 'project.']}}, 'required': ['file']}, rule='required')
+                        data__license_keys = set(data__license.keys())
+                        if "file" in data__license_keys:
+                            data__license_keys.remove("file")
+                            data__license__file = data__license["file"]
+                            if not isinstance(data__license__file, (str)):
+                                raise JsonSchemaValueException("" + (name_prefix or "data") + ".license.file must be string", value=data__license__file, name="" + (name_prefix or "data") + ".license.file", definition={'type': 'string', '$$description': ['Relative path to the file (UTF-8) which contains the license for the', 'project.']}, rule='type')
+                    data__license_one_of_count14 += 1
+                except JsonSchemaValueException: pass
+            if data__license_one_of_count14 < 2:
+                try:
+                    if not isinstance(data__license, (dict)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".license must be object", value=data__license, name="" + (name_prefix or "data") + ".license", definition={'type': 'object', 'properties': {'text': {'type': 'string', '$$description': ['The license of the project whose meaning is that of the', '`License field from the core metadata', '`_.']}}, 'required': ['text']}, rule='type')
+                    data__license_is_dict = isinstance(data__license, dict)
+                    if data__license_is_dict:
+                        data__license__missing_keys = set(['text']) - data__license.keys()
+                        if data__license__missing_keys:
+                            raise JsonSchemaValueException("" + (name_prefix or "data") + ".license must contain " + (str(sorted(data__license__missing_keys)) + " properties"), value=data__license, name="" + (name_prefix or "data") + ".license", definition={'type': 'object', 'properties': {'text': {'type': 'string', '$$description': ['The license of the project whose meaning is that of the', '`License field from the core metadata', '`_.']}}, 'required': ['text']}, rule='required')
+                        data__license_keys = set(data__license.keys())
+                        if "text" in data__license_keys:
+                            data__license_keys.remove("text")
+                            data__license__text = data__license["text"]
+                            if not isinstance(data__license__text, (str)):
+                                raise JsonSchemaValueException("" + (name_prefix or "data") + ".license.text must be string", value=data__license__text, name="" + (name_prefix or "data") + ".license.text", definition={'type': 'string', '$$description': ['The license of the project whose meaning is that of the', '`License field from the core metadata', '`_.']}, rule='type')
+                    data__license_one_of_count14 += 1
+                except JsonSchemaValueException: pass
+            if data__license_one_of_count14 != 1:
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".license must be valid exactly by one definition" + (" (" + str(data__license_one_of_count14) + " matches found)"), value=data__license, name="" + (name_prefix or "data") + ".license", definition={'description': '`Project license `_.', 'oneOf': [{'type': 'string', 'description': 'An SPDX license identifier', 'format': 'SPDX'}, {'type': 'object', 'properties': {'file': {'type': 'string', '$$description': ['Relative path to the file (UTF-8) which contains the license for the', 'project.']}}, 'required': ['file']}, {'type': 'object', 'properties': {'text': {'type': 'string', '$$description': ['The license of the project whose meaning is that of the', '`License field from the core metadata', '`_.']}}, 'required': ['text']}]}, rule='oneOf')
+        if "license-files" in data_keys:
+            data_keys.remove("license-files")
+            data__licensefiles = data["license-files"]
+            if not isinstance(data__licensefiles, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".license-files must be array", value=data__licensefiles, name="" + (name_prefix or "data") + ".license-files", definition={'description': 'Paths or globs to paths of license files', 'type': 'array', 'items': {'type': 'string'}}, rule='type')
+            data__licensefiles_is_list = isinstance(data__licensefiles, (list, tuple))
+            if data__licensefiles_is_list:
+                data__licensefiles_len = len(data__licensefiles)
+                for data__licensefiles_x, data__licensefiles_item in enumerate(data__licensefiles):
+                    if not isinstance(data__licensefiles_item, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".license-files[{data__licensefiles_x}]".format(**locals()) + " must be string", value=data__licensefiles_item, name="" + (name_prefix or "data") + ".license-files[{data__licensefiles_x}]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+        if "authors" in data_keys:
+            data_keys.remove("authors")
+            data__authors = data["authors"]
+            if not isinstance(data__authors, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".authors must be array", value=data__authors, name="" + (name_prefix or "data") + ".authors", definition={'type': 'array', 'items': {'$id': '#/definitions/author', 'title': 'Author or Maintainer', '$comment': 'https://peps.python.org/pep-0621/#authors-maintainers', 'type': 'object', 'additionalProperties': False, 'properties': {'name': {'type': 'string', '$$description': ['MUST be a valid email name, i.e. whatever can be put as a name, before an', 'email, in :rfc:`822`.']}, 'email': {'type': 'string', 'format': 'idn-email', 'description': 'MUST be a valid email address'}}}, '$$description': ["The people or organizations considered to be the 'authors' of the project.", 'The exact meaning is open to interpretation (e.g. original or primary authors,', 'current maintainers, or owners of the package).']}, rule='type')
+            data__authors_is_list = isinstance(data__authors, (list, tuple))
+            if data__authors_is_list:
+                data__authors_len = len(data__authors)
+                for data__authors_x, data__authors_item in enumerate(data__authors):
+                    validate_https___packaging_python_org_en_latest_specifications_pyproject_toml___definitions_author(data__authors_item, custom_formats, (name_prefix or "data") + ".authors[{data__authors_x}]".format(**locals()))
+        if "maintainers" in data_keys:
+            data_keys.remove("maintainers")
+            data__maintainers = data["maintainers"]
+            if not isinstance(data__maintainers, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".maintainers must be array", value=data__maintainers, name="" + (name_prefix or "data") + ".maintainers", definition={'type': 'array', 'items': {'$id': '#/definitions/author', 'title': 'Author or Maintainer', '$comment': 'https://peps.python.org/pep-0621/#authors-maintainers', 'type': 'object', 'additionalProperties': False, 'properties': {'name': {'type': 'string', '$$description': ['MUST be a valid email name, i.e. whatever can be put as a name, before an', 'email, in :rfc:`822`.']}, 'email': {'type': 'string', 'format': 'idn-email', 'description': 'MUST be a valid email address'}}}, '$$description': ["The people or organizations considered to be the 'maintainers' of the project.", 'Similarly to ``authors``, the exact meaning is open to interpretation.']}, rule='type')
+            data__maintainers_is_list = isinstance(data__maintainers, (list, tuple))
+            if data__maintainers_is_list:
+                data__maintainers_len = len(data__maintainers)
+                for data__maintainers_x, data__maintainers_item in enumerate(data__maintainers):
+                    validate_https___packaging_python_org_en_latest_specifications_pyproject_toml___definitions_author(data__maintainers_item, custom_formats, (name_prefix or "data") + ".maintainers[{data__maintainers_x}]".format(**locals()))
+        if "keywords" in data_keys:
+            data_keys.remove("keywords")
+            data__keywords = data["keywords"]
+            if not isinstance(data__keywords, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".keywords must be array", value=data__keywords, name="" + (name_prefix or "data") + ".keywords", definition={'type': 'array', 'items': {'type': 'string'}, 'description': 'List of keywords to assist searching for the distribution in a larger catalog.'}, rule='type')
+            data__keywords_is_list = isinstance(data__keywords, (list, tuple))
+            if data__keywords_is_list:
+                data__keywords_len = len(data__keywords)
+                for data__keywords_x, data__keywords_item in enumerate(data__keywords):
+                    if not isinstance(data__keywords_item, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".keywords[{data__keywords_x}]".format(**locals()) + " must be string", value=data__keywords_item, name="" + (name_prefix or "data") + ".keywords[{data__keywords_x}]".format(**locals()) + "", definition={'type': 'string'}, rule='type')
+        if "classifiers" in data_keys:
+            data_keys.remove("classifiers")
+            data__classifiers = data["classifiers"]
+            if not isinstance(data__classifiers, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".classifiers must be array", value=data__classifiers, name="" + (name_prefix or "data") + ".classifiers", definition={'type': 'array', 'items': {'type': 'string', 'format': 'trove-classifier', 'description': '`PyPI classifier `_.'}, '$$description': ['`Trove classifiers `_', 'which apply to the project.']}, rule='type')
+            data__classifiers_is_list = isinstance(data__classifiers, (list, tuple))
+            if data__classifiers_is_list:
+                data__classifiers_len = len(data__classifiers)
+                for data__classifiers_x, data__classifiers_item in enumerate(data__classifiers):
+                    if not isinstance(data__classifiers_item, (str)):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".classifiers[{data__classifiers_x}]".format(**locals()) + " must be string", value=data__classifiers_item, name="" + (name_prefix or "data") + ".classifiers[{data__classifiers_x}]".format(**locals()) + "", definition={'type': 'string', 'format': 'trove-classifier', 'description': '`PyPI classifier `_.'}, rule='type')
+                    if isinstance(data__classifiers_item, str):
+                        if not custom_formats["trove-classifier"](data__classifiers_item):
+                            raise JsonSchemaValueException("" + (name_prefix or "data") + ".classifiers[{data__classifiers_x}]".format(**locals()) + " must be trove-classifier", value=data__classifiers_item, name="" + (name_prefix or "data") + ".classifiers[{data__classifiers_x}]".format(**locals()) + "", definition={'type': 'string', 'format': 'trove-classifier', 'description': '`PyPI classifier `_.'}, rule='format')
+        if "urls" in data_keys:
+            data_keys.remove("urls")
+            data__urls = data["urls"]
+            if not isinstance(data__urls, (dict)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".urls must be object", value=data__urls, name="" + (name_prefix or "data") + ".urls", definition={'type': 'object', 'description': 'URLs associated with the project in the form ``label => value``.', 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', 'format': 'url'}}}, rule='type')
+            data__urls_is_dict = isinstance(data__urls, dict)
+            if data__urls_is_dict:
+                data__urls_keys = set(data__urls.keys())
+                for data__urls_key, data__urls_val in data__urls.items():
+                    if REGEX_PATTERNS['^.+$'].search(data__urls_key):
+                        if data__urls_key in data__urls_keys:
+                            data__urls_keys.remove(data__urls_key)
+                        if not isinstance(data__urls_val, (str)):
+                            raise JsonSchemaValueException("" + (name_prefix or "data") + ".urls.{data__urls_key}".format(**locals()) + " must be string", value=data__urls_val, name="" + (name_prefix or "data") + ".urls.{data__urls_key}".format(**locals()) + "", definition={'type': 'string', 'format': 'url'}, rule='type')
+                        if isinstance(data__urls_val, str):
+                            if not custom_formats["url"](data__urls_val):
+                                raise JsonSchemaValueException("" + (name_prefix or "data") + ".urls.{data__urls_key}".format(**locals()) + " must be url", value=data__urls_val, name="" + (name_prefix or "data") + ".urls.{data__urls_key}".format(**locals()) + "", definition={'type': 'string', 'format': 'url'}, rule='format')
+                if data__urls_keys:
+                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".urls must not contain "+str(data__urls_keys)+" properties", value=data__urls, name="" + (name_prefix or "data") + ".urls", definition={'type': 'object', 'description': 'URLs associated with the project in the form ``label => value``.', 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', 'format': 'url'}}}, rule='additionalProperties')
+        if "scripts" in data_keys:
+            data_keys.remove("scripts")
+            data__scripts = data["scripts"]
+            validate_https___packaging_python_org_en_latest_specifications_pyproject_toml___definitions_entry_point_group(data__scripts, custom_formats, (name_prefix or "data") + ".scripts")
+        if "gui-scripts" in data_keys:
+            data_keys.remove("gui-scripts")
+            data__guiscripts = data["gui-scripts"]
+            validate_https___packaging_python_org_en_latest_specifications_pyproject_toml___definitions_entry_point_group(data__guiscripts, custom_formats, (name_prefix or "data") + ".gui-scripts")
+        if "entry-points" in data_keys:
+            data_keys.remove("entry-points")
+            data__entrypoints = data["entry-points"]
+            data__entrypoints_is_dict = isinstance(data__entrypoints, dict)
+            if data__entrypoints_is_dict:
+                data__entrypoints_keys = set(data__entrypoints.keys())
+                for data__entrypoints_key, data__entrypoints_val in data__entrypoints.items():
+                    if REGEX_PATTERNS['^.+$'].search(data__entrypoints_key):
+                        if data__entrypoints_key in data__entrypoints_keys:
+                            data__entrypoints_keys.remove(data__entrypoints_key)
+                        validate_https___packaging_python_org_en_latest_specifications_pyproject_toml___definitions_entry_point_group(data__entrypoints_val, custom_formats, (name_prefix or "data") + ".entry-points.{data__entrypoints_key}".format(**locals()))
+                if data__entrypoints_keys:
+                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".entry-points must not contain "+str(data__entrypoints_keys)+" properties", value=data__entrypoints, name="" + (name_prefix or "data") + ".entry-points", definition={'$$description': ['Instruct the installer to expose the given modules/functions via', '``entry-point`` discovery mechanism (useful for plugins).', 'More information available in the `Python packaging guide', '`_.'], 'propertyNames': {'format': 'python-entrypoint-group'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'$id': '#/definitions/entry-point-group', 'title': 'Entry-points', 'type': 'object', '$$description': ['Entry-points are grouped together to indicate what sort of capabilities they', 'provide.', 'See the `packaging guides', '`_', 'and `setuptools docs', '`_', 'for more information.'], 'propertyNames': {'format': 'python-entrypoint-name'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', '$$description': ['Reference to a Python object. It is either in the form', '``importable.module``, or ``importable.module:object.attr``.'], 'format': 'python-entrypoint-reference', '$comment': 'https://packaging.python.org/specifications/entry-points/'}}}}}, rule='additionalProperties')
+                data__entrypoints_len = len(data__entrypoints)
+                if data__entrypoints_len != 0:
+                    data__entrypoints_property_names = True
+                    for data__entrypoints_key in data__entrypoints:
+                        try:
+                            if isinstance(data__entrypoints_key, str):
+                                if not custom_formats["python-entrypoint-group"](data__entrypoints_key):
+                                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".entry-points must be python-entrypoint-group", value=data__entrypoints_key, name="" + (name_prefix or "data") + ".entry-points", definition={'format': 'python-entrypoint-group'}, rule='format')
+                        except JsonSchemaValueException:
+                            data__entrypoints_property_names = False
+                    if not data__entrypoints_property_names:
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".entry-points must be named by propertyName definition", value=data__entrypoints, name="" + (name_prefix or "data") + ".entry-points", definition={'$$description': ['Instruct the installer to expose the given modules/functions via', '``entry-point`` discovery mechanism (useful for plugins).', 'More information available in the `Python packaging guide', '`_.'], 'propertyNames': {'format': 'python-entrypoint-group'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'$id': '#/definitions/entry-point-group', 'title': 'Entry-points', 'type': 'object', '$$description': ['Entry-points are grouped together to indicate what sort of capabilities they', 'provide.', 'See the `packaging guides', '`_', 'and `setuptools docs', '`_', 'for more information.'], 'propertyNames': {'format': 'python-entrypoint-name'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', '$$description': ['Reference to a Python object. It is either in the form', '``importable.module``, or ``importable.module:object.attr``.'], 'format': 'python-entrypoint-reference', '$comment': 'https://packaging.python.org/specifications/entry-points/'}}}}}, rule='propertyNames')
+        if "dependencies" in data_keys:
+            data_keys.remove("dependencies")
+            data__dependencies = data["dependencies"]
+            if not isinstance(data__dependencies, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".dependencies must be array", value=data__dependencies, name="" + (name_prefix or "data") + ".dependencies", definition={'type': 'array', 'description': 'Project (mandatory) dependencies.', 'items': {'$id': '#/definitions/dependency', 'title': 'Dependency', 'type': 'string', 'description': 'Project dependency specification according to PEP 508', 'format': 'pep508'}}, rule='type')
+            data__dependencies_is_list = isinstance(data__dependencies, (list, tuple))
+            if data__dependencies_is_list:
+                data__dependencies_len = len(data__dependencies)
+                for data__dependencies_x, data__dependencies_item in enumerate(data__dependencies):
+                    validate_https___packaging_python_org_en_latest_specifications_pyproject_toml___definitions_dependency(data__dependencies_item, custom_formats, (name_prefix or "data") + ".dependencies[{data__dependencies_x}]".format(**locals()))
+        if "optional-dependencies" in data_keys:
+            data_keys.remove("optional-dependencies")
+            data__optionaldependencies = data["optional-dependencies"]
+            if not isinstance(data__optionaldependencies, (dict)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".optional-dependencies must be object", value=data__optionaldependencies, name="" + (name_prefix or "data") + ".optional-dependencies", definition={'type': 'object', 'description': 'Optional dependency for the project', 'propertyNames': {'format': 'pep508-identifier'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'array', 'items': {'$id': '#/definitions/dependency', 'title': 'Dependency', 'type': 'string', 'description': 'Project dependency specification according to PEP 508', 'format': 'pep508'}}}}, rule='type')
+            data__optionaldependencies_is_dict = isinstance(data__optionaldependencies, dict)
+            if data__optionaldependencies_is_dict:
+                data__optionaldependencies_keys = set(data__optionaldependencies.keys())
+                for data__optionaldependencies_key, data__optionaldependencies_val in data__optionaldependencies.items():
+                    if REGEX_PATTERNS['^.+$'].search(data__optionaldependencies_key):
+                        if data__optionaldependencies_key in data__optionaldependencies_keys:
+                            data__optionaldependencies_keys.remove(data__optionaldependencies_key)
+                        if not isinstance(data__optionaldependencies_val, (list, tuple)):
+                            raise JsonSchemaValueException("" + (name_prefix or "data") + ".optional-dependencies.{data__optionaldependencies_key}".format(**locals()) + " must be array", value=data__optionaldependencies_val, name="" + (name_prefix or "data") + ".optional-dependencies.{data__optionaldependencies_key}".format(**locals()) + "", definition={'type': 'array', 'items': {'$id': '#/definitions/dependency', 'title': 'Dependency', 'type': 'string', 'description': 'Project dependency specification according to PEP 508', 'format': 'pep508'}}, rule='type')
+                        data__optionaldependencies_val_is_list = isinstance(data__optionaldependencies_val, (list, tuple))
+                        if data__optionaldependencies_val_is_list:
+                            data__optionaldependencies_val_len = len(data__optionaldependencies_val)
+                            for data__optionaldependencies_val_x, data__optionaldependencies_val_item in enumerate(data__optionaldependencies_val):
+                                validate_https___packaging_python_org_en_latest_specifications_pyproject_toml___definitions_dependency(data__optionaldependencies_val_item, custom_formats, (name_prefix or "data") + ".optional-dependencies.{data__optionaldependencies_key}[{data__optionaldependencies_val_x}]".format(**locals()))
+                if data__optionaldependencies_keys:
+                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".optional-dependencies must not contain "+str(data__optionaldependencies_keys)+" properties", value=data__optionaldependencies, name="" + (name_prefix or "data") + ".optional-dependencies", definition={'type': 'object', 'description': 'Optional dependency for the project', 'propertyNames': {'format': 'pep508-identifier'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'array', 'items': {'$id': '#/definitions/dependency', 'title': 'Dependency', 'type': 'string', 'description': 'Project dependency specification according to PEP 508', 'format': 'pep508'}}}}, rule='additionalProperties')
+                data__optionaldependencies_len = len(data__optionaldependencies)
+                if data__optionaldependencies_len != 0:
+                    data__optionaldependencies_property_names = True
+                    for data__optionaldependencies_key in data__optionaldependencies:
+                        try:
+                            if isinstance(data__optionaldependencies_key, str):
+                                if not custom_formats["pep508-identifier"](data__optionaldependencies_key):
+                                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".optional-dependencies must be pep508-identifier", value=data__optionaldependencies_key, name="" + (name_prefix or "data") + ".optional-dependencies", definition={'format': 'pep508-identifier'}, rule='format')
+                        except JsonSchemaValueException:
+                            data__optionaldependencies_property_names = False
+                    if not data__optionaldependencies_property_names:
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".optional-dependencies must be named by propertyName definition", value=data__optionaldependencies, name="" + (name_prefix or "data") + ".optional-dependencies", definition={'type': 'object', 'description': 'Optional dependency for the project', 'propertyNames': {'format': 'pep508-identifier'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'array', 'items': {'$id': '#/definitions/dependency', 'title': 'Dependency', 'type': 'string', 'description': 'Project dependency specification according to PEP 508', 'format': 'pep508'}}}}, rule='propertyNames')
+        if "dynamic" in data_keys:
+            data_keys.remove("dynamic")
+            data__dynamic = data["dynamic"]
+            if not isinstance(data__dynamic, (list, tuple)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".dynamic must be array", value=data__dynamic, name="" + (name_prefix or "data") + ".dynamic", definition={'type': 'array', '$$description': ['Specifies which fields are intentionally unspecified and expected to be', 'dynamically provided by build tools'], 'items': {'enum': ['version', 'description', 'readme', 'requires-python', 'license', 'license-files', 'authors', 'maintainers', 'keywords', 'classifiers', 'urls', 'scripts', 'gui-scripts', 'entry-points', 'dependencies', 'optional-dependencies']}}, rule='type')
+            data__dynamic_is_list = isinstance(data__dynamic, (list, tuple))
+            if data__dynamic_is_list:
+                data__dynamic_len = len(data__dynamic)
+                for data__dynamic_x, data__dynamic_item in enumerate(data__dynamic):
+                    if data__dynamic_item not in ['version', 'description', 'readme', 'requires-python', 'license', 'license-files', 'authors', 'maintainers', 'keywords', 'classifiers', 'urls', 'scripts', 'gui-scripts', 'entry-points', 'dependencies', 'optional-dependencies']:
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".dynamic[{data__dynamic_x}]".format(**locals()) + " must be one of ['version', 'description', 'readme', 'requires-python', 'license', 'license-files', 'authors', 'maintainers', 'keywords', 'classifiers', 'urls', 'scripts', 'gui-scripts', 'entry-points', 'dependencies', 'optional-dependencies']", value=data__dynamic_item, name="" + (name_prefix or "data") + ".dynamic[{data__dynamic_x}]".format(**locals()) + "", definition={'enum': ['version', 'description', 'readme', 'requires-python', 'license', 'license-files', 'authors', 'maintainers', 'keywords', 'classifiers', 'urls', 'scripts', 'gui-scripts', 'entry-points', 'dependencies', 'optional-dependencies']}, rule='enum')
+        if data_keys:
+            raise JsonSchemaValueException("" + (name_prefix or "data") + " must not contain "+str(data_keys)+" properties", value=data, name="" + (name_prefix or "data") + "", definition={'$schema': 'http://json-schema.org/draft-07/schema#', '$id': 'https://packaging.python.org/en/latest/specifications/pyproject-toml/', 'title': 'Package metadata stored in the ``project`` table', '$$description': ['Data structure for the **project** table inside ``pyproject.toml``', '(as initially defined in :pep:`621`)'], 'type': 'object', 'properties': {'name': {'type': 'string', 'description': 'The name (primary identifier) of the project. MUST be statically defined.', 'format': 'pep508-identifier'}, 'version': {'type': 'string', 'description': 'The version of the project as supported by :pep:`440`.', 'format': 'pep440'}, 'description': {'type': 'string', '$$description': ['The `summary description of the project', '`_']}, 'readme': {'$$description': ['`Full/detailed description of the project in the form of a README', '`_', "with meaning similar to the one defined in `core metadata's Description", '`_'], 'oneOf': [{'type': 'string', '$$description': ['Relative path to a text file (UTF-8) containing the full description', 'of the project. If the file path ends in case-insensitive ``.md`` or', '``.rst`` suffixes, then the content-type is respectively', '``text/markdown`` or ``text/x-rst``']}, {'type': 'object', 'allOf': [{'anyOf': [{'properties': {'file': {'type': 'string', '$$description': ['Relative path to a text file containing the full description', 'of the project.']}}, 'required': ['file']}, {'properties': {'text': {'type': 'string', 'description': 'Full text describing the project.'}}, 'required': ['text']}]}, {'properties': {'content-type': {'type': 'string', '$$description': ['Content-type (:rfc:`1341`) of the full description', '(e.g. ``text/markdown``). The ``charset`` parameter is assumed', 'UTF-8 when not present.'], '$comment': 'TODO: add regex pattern or format?'}}, 'required': ['content-type']}]}]}, 'requires-python': {'type': 'string', 'format': 'pep508-versionspec', '$$description': ['`The Python version requirements of the project', '`_.']}, 'license': {'description': '`Project license `_.', 'oneOf': [{'type': 'string', 'description': 'An SPDX license identifier', 'format': 'SPDX'}, {'type': 'object', 'properties': {'file': {'type': 'string', '$$description': ['Relative path to the file (UTF-8) which contains the license for the', 'project.']}}, 'required': ['file']}, {'type': 'object', 'properties': {'text': {'type': 'string', '$$description': ['The license of the project whose meaning is that of the', '`License field from the core metadata', '`_.']}}, 'required': ['text']}]}, 'license-files': {'description': 'Paths or globs to paths of license files', 'type': 'array', 'items': {'type': 'string'}}, 'authors': {'type': 'array', 'items': {'$id': '#/definitions/author', 'title': 'Author or Maintainer', '$comment': 'https://peps.python.org/pep-0621/#authors-maintainers', 'type': 'object', 'additionalProperties': False, 'properties': {'name': {'type': 'string', '$$description': ['MUST be a valid email name, i.e. whatever can be put as a name, before an', 'email, in :rfc:`822`.']}, 'email': {'type': 'string', 'format': 'idn-email', 'description': 'MUST be a valid email address'}}}, '$$description': ["The people or organizations considered to be the 'authors' of the project.", 'The exact meaning is open to interpretation (e.g. original or primary authors,', 'current maintainers, or owners of the package).']}, 'maintainers': {'type': 'array', 'items': {'$id': '#/definitions/author', 'title': 'Author or Maintainer', '$comment': 'https://peps.python.org/pep-0621/#authors-maintainers', 'type': 'object', 'additionalProperties': False, 'properties': {'name': {'type': 'string', '$$description': ['MUST be a valid email name, i.e. whatever can be put as a name, before an', 'email, in :rfc:`822`.']}, 'email': {'type': 'string', 'format': 'idn-email', 'description': 'MUST be a valid email address'}}}, '$$description': ["The people or organizations considered to be the 'maintainers' of the project.", 'Similarly to ``authors``, the exact meaning is open to interpretation.']}, 'keywords': {'type': 'array', 'items': {'type': 'string'}, 'description': 'List of keywords to assist searching for the distribution in a larger catalog.'}, 'classifiers': {'type': 'array', 'items': {'type': 'string', 'format': 'trove-classifier', 'description': '`PyPI classifier `_.'}, '$$description': ['`Trove classifiers `_', 'which apply to the project.']}, 'urls': {'type': 'object', 'description': 'URLs associated with the project in the form ``label => value``.', 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', 'format': 'url'}}}, 'scripts': {'$id': '#/definitions/entry-point-group', 'title': 'Entry-points', 'type': 'object', '$$description': ['Entry-points are grouped together to indicate what sort of capabilities they', 'provide.', 'See the `packaging guides', '`_', 'and `setuptools docs', '`_', 'for more information.'], 'propertyNames': {'format': 'python-entrypoint-name'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', '$$description': ['Reference to a Python object. It is either in the form', '``importable.module``, or ``importable.module:object.attr``.'], 'format': 'python-entrypoint-reference', '$comment': 'https://packaging.python.org/specifications/entry-points/'}}}, 'gui-scripts': {'$id': '#/definitions/entry-point-group', 'title': 'Entry-points', 'type': 'object', '$$description': ['Entry-points are grouped together to indicate what sort of capabilities they', 'provide.', 'See the `packaging guides', '`_', 'and `setuptools docs', '`_', 'for more information.'], 'propertyNames': {'format': 'python-entrypoint-name'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', '$$description': ['Reference to a Python object. It is either in the form', '``importable.module``, or ``importable.module:object.attr``.'], 'format': 'python-entrypoint-reference', '$comment': 'https://packaging.python.org/specifications/entry-points/'}}}, 'entry-points': {'$$description': ['Instruct the installer to expose the given modules/functions via', '``entry-point`` discovery mechanism (useful for plugins).', 'More information available in the `Python packaging guide', '`_.'], 'propertyNames': {'format': 'python-entrypoint-group'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'$id': '#/definitions/entry-point-group', 'title': 'Entry-points', 'type': 'object', '$$description': ['Entry-points are grouped together to indicate what sort of capabilities they', 'provide.', 'See the `packaging guides', '`_', 'and `setuptools docs', '`_', 'for more information.'], 'propertyNames': {'format': 'python-entrypoint-name'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', '$$description': ['Reference to a Python object. It is either in the form', '``importable.module``, or ``importable.module:object.attr``.'], 'format': 'python-entrypoint-reference', '$comment': 'https://packaging.python.org/specifications/entry-points/'}}}}}, 'dependencies': {'type': 'array', 'description': 'Project (mandatory) dependencies.', 'items': {'$id': '#/definitions/dependency', 'title': 'Dependency', 'type': 'string', 'description': 'Project dependency specification according to PEP 508', 'format': 'pep508'}}, 'optional-dependencies': {'type': 'object', 'description': 'Optional dependency for the project', 'propertyNames': {'format': 'pep508-identifier'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'array', 'items': {'$id': '#/definitions/dependency', 'title': 'Dependency', 'type': 'string', 'description': 'Project dependency specification according to PEP 508', 'format': 'pep508'}}}}, 'dynamic': {'type': 'array', '$$description': ['Specifies which fields are intentionally unspecified and expected to be', 'dynamically provided by build tools'], 'items': {'enum': ['version', 'description', 'readme', 'requires-python', 'license', 'license-files', 'authors', 'maintainers', 'keywords', 'classifiers', 'urls', 'scripts', 'gui-scripts', 'entry-points', 'dependencies', 'optional-dependencies']}}}, 'required': ['name'], 'additionalProperties': False, 'allOf': [{'if': {'not': {'required': ['dynamic'], 'properties': {'dynamic': {'contains': {'const': 'version'}, '$$description': ['version is listed in ``dynamic``']}}}, '$$comment': ['According to :pep:`621`:', '    If the core metadata specification lists a field as "Required", then', '    the metadata MUST specify the field statically or list it in dynamic', 'In turn, `core metadata`_ defines:', '    The required fields are: Metadata-Version, Name, Version.', '    All the other fields are optional.', 'Since ``Metadata-Version`` is defined by the build back-end, ``name`` and', '``version`` are the only mandatory information in ``pyproject.toml``.', '.. _core metadata: https://packaging.python.org/specifications/core-metadata/']}, 'then': {'required': ['version'], '$$description': ['version should be statically defined in the ``version`` field']}}, {'if': {'required': ['license-files']}, 'then': {'properties': {'license': {'type': 'string'}}}}], 'definitions': {'author': {'$id': '#/definitions/author', 'title': 'Author or Maintainer', '$comment': 'https://peps.python.org/pep-0621/#authors-maintainers', 'type': 'object', 'additionalProperties': False, 'properties': {'name': {'type': 'string', '$$description': ['MUST be a valid email name, i.e. whatever can be put as a name, before an', 'email, in :rfc:`822`.']}, 'email': {'type': 'string', 'format': 'idn-email', 'description': 'MUST be a valid email address'}}}, 'entry-point-group': {'$id': '#/definitions/entry-point-group', 'title': 'Entry-points', 'type': 'object', '$$description': ['Entry-points are grouped together to indicate what sort of capabilities they', 'provide.', 'See the `packaging guides', '`_', 'and `setuptools docs', '`_', 'for more information.'], 'propertyNames': {'format': 'python-entrypoint-name'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', '$$description': ['Reference to a Python object. It is either in the form', '``importable.module``, or ``importable.module:object.attr``.'], 'format': 'python-entrypoint-reference', '$comment': 'https://packaging.python.org/specifications/entry-points/'}}}, 'dependency': {'$id': '#/definitions/dependency', 'title': 'Dependency', 'type': 'string', 'description': 'Project dependency specification according to PEP 508', 'format': 'pep508'}}}, rule='additionalProperties')
+    return data
+
+def validate_https___packaging_python_org_en_latest_specifications_pyproject_toml___definitions_dependency(data, custom_formats={}, name_prefix=None):
+    if not isinstance(data, (str)):
+        raise JsonSchemaValueException("" + (name_prefix or "data") + " must be string", value=data, name="" + (name_prefix or "data") + "", definition={'$id': '#/definitions/dependency', 'title': 'Dependency', 'type': 'string', 'description': 'Project dependency specification according to PEP 508', 'format': 'pep508'}, rule='type')
+    if isinstance(data, str):
+        if not custom_formats["pep508"](data):
+            raise JsonSchemaValueException("" + (name_prefix or "data") + " must be pep508", value=data, name="" + (name_prefix or "data") + "", definition={'$id': '#/definitions/dependency', 'title': 'Dependency', 'type': 'string', 'description': 'Project dependency specification according to PEP 508', 'format': 'pep508'}, rule='format')
+    return data
+
+def validate_https___packaging_python_org_en_latest_specifications_pyproject_toml___definitions_entry_point_group(data, custom_formats={}, name_prefix=None):
+    if not isinstance(data, (dict)):
+        raise JsonSchemaValueException("" + (name_prefix or "data") + " must be object", value=data, name="" + (name_prefix or "data") + "", definition={'$id': '#/definitions/entry-point-group', 'title': 'Entry-points', 'type': 'object', '$$description': ['Entry-points are grouped together to indicate what sort of capabilities they', 'provide.', 'See the `packaging guides', '`_', 'and `setuptools docs', '`_', 'for more information.'], 'propertyNames': {'format': 'python-entrypoint-name'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', '$$description': ['Reference to a Python object. It is either in the form', '``importable.module``, or ``importable.module:object.attr``.'], 'format': 'python-entrypoint-reference', '$comment': 'https://packaging.python.org/specifications/entry-points/'}}}, rule='type')
+    data_is_dict = isinstance(data, dict)
+    if data_is_dict:
+        data_keys = set(data.keys())
+        for data_key, data_val in data.items():
+            if REGEX_PATTERNS['^.+$'].search(data_key):
+                if data_key in data_keys:
+                    data_keys.remove(data_key)
+                if not isinstance(data_val, (str)):
+                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".{data_key}".format(**locals()) + " must be string", value=data_val, name="" + (name_prefix or "data") + ".{data_key}".format(**locals()) + "", definition={'type': 'string', '$$description': ['Reference to a Python object. It is either in the form', '``importable.module``, or ``importable.module:object.attr``.'], 'format': 'python-entrypoint-reference', '$comment': 'https://packaging.python.org/specifications/entry-points/'}, rule='type')
+                if isinstance(data_val, str):
+                    if not custom_formats["python-entrypoint-reference"](data_val):
+                        raise JsonSchemaValueException("" + (name_prefix or "data") + ".{data_key}".format(**locals()) + " must be python-entrypoint-reference", value=data_val, name="" + (name_prefix or "data") + ".{data_key}".format(**locals()) + "", definition={'type': 'string', '$$description': ['Reference to a Python object. It is either in the form', '``importable.module``, or ``importable.module:object.attr``.'], 'format': 'python-entrypoint-reference', '$comment': 'https://packaging.python.org/specifications/entry-points/'}, rule='format')
+        if data_keys:
+            raise JsonSchemaValueException("" + (name_prefix or "data") + " must not contain "+str(data_keys)+" properties", value=data, name="" + (name_prefix or "data") + "", definition={'$id': '#/definitions/entry-point-group', 'title': 'Entry-points', 'type': 'object', '$$description': ['Entry-points are grouped together to indicate what sort of capabilities they', 'provide.', 'See the `packaging guides', '`_', 'and `setuptools docs', '`_', 'for more information.'], 'propertyNames': {'format': 'python-entrypoint-name'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', '$$description': ['Reference to a Python object. It is either in the form', '``importable.module``, or ``importable.module:object.attr``.'], 'format': 'python-entrypoint-reference', '$comment': 'https://packaging.python.org/specifications/entry-points/'}}}, rule='additionalProperties')
+        data_len = len(data)
+        if data_len != 0:
+            data_property_names = True
+            for data_key in data:
+                try:
+                    if isinstance(data_key, str):
+                        if not custom_formats["python-entrypoint-name"](data_key):
+                            raise JsonSchemaValueException("" + (name_prefix or "data") + " must be python-entrypoint-name", value=data_key, name="" + (name_prefix or "data") + "", definition={'format': 'python-entrypoint-name'}, rule='format')
+                except JsonSchemaValueException:
+                    data_property_names = False
+            if not data_property_names:
+                raise JsonSchemaValueException("" + (name_prefix or "data") + " must be named by propertyName definition", value=data, name="" + (name_prefix or "data") + "", definition={'$id': '#/definitions/entry-point-group', 'title': 'Entry-points', 'type': 'object', '$$description': ['Entry-points are grouped together to indicate what sort of capabilities they', 'provide.', 'See the `packaging guides', '`_', 'and `setuptools docs', '`_', 'for more information.'], 'propertyNames': {'format': 'python-entrypoint-name'}, 'additionalProperties': False, 'patternProperties': {'^.+$': {'type': 'string', '$$description': ['Reference to a Python object. It is either in the form', '``importable.module``, or ``importable.module:object.attr``.'], 'format': 'python-entrypoint-reference', '$comment': 'https://packaging.python.org/specifications/entry-points/'}}}, rule='propertyNames')
+    return data
+
+def validate_https___packaging_python_org_en_latest_specifications_pyproject_toml___definitions_author(data, custom_formats={}, name_prefix=None):
+    if not isinstance(data, (dict)):
+        raise JsonSchemaValueException("" + (name_prefix or "data") + " must be object", value=data, name="" + (name_prefix or "data") + "", definition={'$id': '#/definitions/author', 'title': 'Author or Maintainer', '$comment': 'https://peps.python.org/pep-0621/#authors-maintainers', 'type': 'object', 'additionalProperties': False, 'properties': {'name': {'type': 'string', '$$description': ['MUST be a valid email name, i.e. whatever can be put as a name, before an', 'email, in :rfc:`822`.']}, 'email': {'type': 'string', 'format': 'idn-email', 'description': 'MUST be a valid email address'}}}, rule='type')
+    data_is_dict = isinstance(data, dict)
+    if data_is_dict:
+        data_keys = set(data.keys())
+        if "name" in data_keys:
+            data_keys.remove("name")
+            data__name = data["name"]
+            if not isinstance(data__name, (str)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".name must be string", value=data__name, name="" + (name_prefix or "data") + ".name", definition={'type': 'string', '$$description': ['MUST be a valid email name, i.e. whatever can be put as a name, before an', 'email, in :rfc:`822`.']}, rule='type')
+        if "email" in data_keys:
+            data_keys.remove("email")
+            data__email = data["email"]
+            if not isinstance(data__email, (str)):
+                raise JsonSchemaValueException("" + (name_prefix or "data") + ".email must be string", value=data__email, name="" + (name_prefix or "data") + ".email", definition={'type': 'string', 'format': 'idn-email', 'description': 'MUST be a valid email address'}, rule='type')
+            if isinstance(data__email, str):
+                if not REGEX_PATTERNS["idn-email_re_pattern"].match(data__email):
+                    raise JsonSchemaValueException("" + (name_prefix or "data") + ".email must be idn-email", value=data__email, name="" + (name_prefix or "data") + ".email", definition={'type': 'string', 'format': 'idn-email', 'description': 'MUST be a valid email address'}, rule='format')
+        if data_keys:
+            raise JsonSchemaValueException("" + (name_prefix or "data") + " must not contain "+str(data_keys)+" properties", value=data, name="" + (name_prefix or "data") + "", definition={'$id': '#/definitions/author', 'title': 'Author or Maintainer', '$comment': 'https://peps.python.org/pep-0621/#authors-maintainers', 'type': 'object', 'additionalProperties': False, 'properties': {'name': {'type': 'string', '$$description': ['MUST be a valid email name, i.e. whatever can be put as a name, before an', 'email, in :rfc:`822`.']}, 'email': {'type': 'string', 'format': 'idn-email', 'description': 'MUST be a valid email address'}}}, rule='additionalProperties')
+    return data
diff --git a/setuptools/config/_validate_pyproject/formats.py b/setuptools/config/_validate_pyproject/formats.py
new file mode 100644
index 0000000000..1cf4a465ef
--- /dev/null
+++ b/setuptools/config/_validate_pyproject/formats.py
@@ -0,0 +1,402 @@
+"""
+The functions in this module are used to validate schemas with the
+`format JSON Schema keyword
+`_.
+
+The correspondence is given by replacing the ``_`` character in the name of the
+function with a ``-`` to obtain the format name and vice versa.
+"""
+
+import builtins
+import logging
+import os
+import re
+import string
+import typing
+from itertools import chain as _chain
+
+if typing.TYPE_CHECKING:
+    from typing_extensions import Literal
+
+_logger = logging.getLogger(__name__)
+
+# -------------------------------------------------------------------------------------
+# PEP 440
+
+VERSION_PATTERN = r"""
+    v?
+    (?:
+        (?:(?P[0-9]+)!)?                           # epoch
+        (?P[0-9]+(?:\.[0-9]+)*)                  # release segment
+        (?P
                                              # pre-release
+            [-_\.]?
+            (?Palpha|a|beta|b|preview|pre|c|rc)
+            [-_\.]?
+            (?P[0-9]+)?
+        )?
+        (?P                                         # post release
+            (?:-(?P[0-9]+))
+            |
+            (?:
+                [-_\.]?
+                (?Ppost|rev|r)
+                [-_\.]?
+                (?P[0-9]+)?
+            )
+        )?
+        (?P                                          # dev release
+            [-_\.]?
+            (?Pdev)
+            [-_\.]?
+            (?P[0-9]+)?
+        )?
+    )
+    (?:\+(?P[a-z0-9]+(?:[-_\.][a-z0-9]+)*))?       # local version
+"""
+
+VERSION_REGEX = re.compile(r"^\s*" + VERSION_PATTERN + r"\s*$", re.X | re.I)
+
+
+def pep440(version: str) -> bool:
+    """See :ref:`PyPA's version specification `
+    (initially introduced in :pep:`440`).
+    """
+    return VERSION_REGEX.match(version) is not None
+
+
+# -------------------------------------------------------------------------------------
+# PEP 508
+
+PEP508_IDENTIFIER_PATTERN = r"([A-Z0-9]|[A-Z0-9][A-Z0-9._-]*[A-Z0-9])"
+PEP508_IDENTIFIER_REGEX = re.compile(f"^{PEP508_IDENTIFIER_PATTERN}$", re.I)
+
+
+def pep508_identifier(name: str) -> bool:
+    """See :ref:`PyPA's name specification `
+    (initially introduced in :pep:`508#names`).
+    """
+    return PEP508_IDENTIFIER_REGEX.match(name) is not None
+
+
+try:
+    try:
+        from packaging import requirements as _req
+    except ImportError:  # pragma: no cover
+        # let's try setuptools vendored version
+        from setuptools._vendor.packaging import (  # type: ignore[no-redef]
+            requirements as _req,
+        )
+
+    def pep508(value: str) -> bool:
+        """See :ref:`PyPA's dependency specifiers `
+        (initially introduced in :pep:`508`).
+        """
+        try:
+            _req.Requirement(value)
+            return True
+        except _req.InvalidRequirement:
+            return False
+
+except ImportError:  # pragma: no cover
+    _logger.warning(
+        "Could not find an installation of `packaging`. Requirements, dependencies and "
+        "versions might not be validated. "
+        "To enforce validation, please install `packaging`."
+    )
+
+    def pep508(value: str) -> bool:
+        return True
+
+
+def pep508_versionspec(value: str) -> bool:
+    """Expression that can be used to specify/lock versions (including ranges)
+    See ``versionspec`` in :ref:`PyPA's dependency specifiers
+    ` (initially introduced in :pep:`508`).
+    """
+    if any(c in value for c in (";", "]", "@")):
+        # In PEP 508:
+        # conditional markers, extras and URL specs are not included in the
+        # versionspec
+        return False
+    # Let's pretend we have a dependency called `requirement` with the given
+    # version spec, then we can reuse the pep508 function for validation:
+    return pep508(f"requirement{value}")
+
+
+# -------------------------------------------------------------------------------------
+# PEP 517
+
+
+def pep517_backend_reference(value: str) -> bool:
+    """See PyPA's specification for defining build-backend references
+    introduced in :pep:`517#source-trees`.
+
+    This is similar to an entry-point reference (e.g., ``package.module:object``).
+    """
+    module, _, obj = value.partition(":")
+    identifiers = (i.strip() for i in _chain(module.split("."), obj.split(".")))
+    return all(python_identifier(i) for i in identifiers if i)
+
+
+# -------------------------------------------------------------------------------------
+# Classifiers - PEP 301
+
+
+def _download_classifiers() -> str:
+    import ssl
+    from email.message import Message
+    from urllib.request import urlopen
+
+    url = "https://pypi.org/pypi?:action=list_classifiers"
+    context = ssl.create_default_context()
+    with urlopen(url, context=context) as response:  # noqa: S310 (audit URLs)
+        headers = Message()
+        headers["content_type"] = response.getheader("content-type", "text/plain")
+        return response.read().decode(headers.get_param("charset", "utf-8"))  # type: ignore[no-any-return]
+
+
+class _TroveClassifier:
+    """The ``trove_classifiers`` package is the official way of validating classifiers,
+    however this package might not be always available.
+    As a workaround we can still download a list from PyPI.
+    We also don't want to be over strict about it, so simply skipping silently is an
+    option (classifiers will be validated anyway during the upload to PyPI).
+    """
+
+    downloaded: typing.Union[None, "Literal[False]", typing.Set[str]]
+    """
+    None => not cached yet
+    False => unavailable
+    set => cached values
+    """
+
+    def __init__(self) -> None:
+        self.downloaded = None
+        self._skip_download = False
+        self.__name__ = "trove_classifier"  # Emulate a public function
+
+    def _disable_download(self) -> None:
+        # This is a private API. Only setuptools has the consent of using it.
+        self._skip_download = True
+
+    def __call__(self, value: str) -> bool:
+        if self.downloaded is False or self._skip_download is True:
+            return True
+
+        if os.getenv("NO_NETWORK") or os.getenv("VALIDATE_PYPROJECT_NO_NETWORK"):
+            self.downloaded = False
+            msg = (
+                "Install ``trove-classifiers`` to ensure proper validation. "
+                "Skipping download of classifiers list from PyPI (NO_NETWORK)."
+            )
+            _logger.debug(msg)
+            return True
+
+        if self.downloaded is None:
+            msg = (
+                "Install ``trove-classifiers`` to ensure proper validation. "
+                "Meanwhile a list of classifiers will be downloaded from PyPI."
+            )
+            _logger.debug(msg)
+            try:
+                self.downloaded = set(_download_classifiers().splitlines())
+            except Exception:
+                self.downloaded = False
+                _logger.debug("Problem with download, skipping validation")
+                return True
+
+        return value in self.downloaded or value.lower().startswith("private ::")
+
+
+try:
+    from trove_classifiers import classifiers as _trove_classifiers
+
+    def trove_classifier(value: str) -> bool:
+        """See https://pypi.org/classifiers/"""
+        return value in _trove_classifiers or value.lower().startswith("private ::")
+
+except ImportError:  # pragma: no cover
+    trove_classifier = _TroveClassifier()
+
+
+# -------------------------------------------------------------------------------------
+# Stub packages - PEP 561
+
+
+def pep561_stub_name(value: str) -> bool:
+    """Name of a directory containing type stubs.
+    It must follow the name scheme ``-stubs`` as defined in
+    :pep:`561#stub-only-packages`.
+    """
+    top, *children = value.split(".")
+    if not top.endswith("-stubs"):
+        return False
+    return python_module_name(".".join([top[: -len("-stubs")], *children]))
+
+
+# -------------------------------------------------------------------------------------
+# Non-PEP related
+
+
+def url(value: str) -> bool:
+    """Valid URL (validation uses :obj:`urllib.parse`).
+    For maximum compatibility please make sure to include a ``scheme`` prefix
+    in your URL (e.g. ``http://``).
+    """
+    from urllib.parse import urlparse
+
+    try:
+        parts = urlparse(value)
+        if not parts.scheme:
+            _logger.warning(
+                "For maximum compatibility please make sure to include a "
+                "`scheme` prefix in your URL (e.g. 'http://'). "
+                f"Given value: {value}"
+            )
+            if not (value.startswith("/") or value.startswith("\\") or "@" in value):
+                parts = urlparse(f"http://{value}")
+
+        return bool(parts.scheme and parts.netloc)
+    except Exception:
+        return False
+
+
+# https://packaging.python.org/specifications/entry-points/
+ENTRYPOINT_PATTERN = r"[^\[\s=]([^=]*[^\s=])?"
+ENTRYPOINT_REGEX = re.compile(f"^{ENTRYPOINT_PATTERN}$", re.I)
+RECOMMEDED_ENTRYPOINT_PATTERN = r"[\w.-]+"
+RECOMMEDED_ENTRYPOINT_REGEX = re.compile(f"^{RECOMMEDED_ENTRYPOINT_PATTERN}$", re.I)
+ENTRYPOINT_GROUP_PATTERN = r"\w+(\.\w+)*"
+ENTRYPOINT_GROUP_REGEX = re.compile(f"^{ENTRYPOINT_GROUP_PATTERN}$", re.I)
+
+
+def python_identifier(value: str) -> bool:
+    """Can be used as identifier in Python.
+    (Validation uses :obj:`str.isidentifier`).
+    """
+    return value.isidentifier()
+
+
+def python_qualified_identifier(value: str) -> bool:
+    """
+    Python "dotted identifier", i.e. a sequence of :obj:`python_identifier`
+    concatenated with ``"."`` (e.g.: ``package.module.submodule``).
+    """
+    if value.startswith(".") or value.endswith("."):
+        return False
+    return all(python_identifier(m) for m in value.split("."))
+
+
+def python_module_name(value: str) -> bool:
+    """Module name that can be used in an ``import``-statement in Python.
+    See :obj:`python_qualified_identifier`.
+    """
+    return python_qualified_identifier(value)
+
+
+def python_module_name_relaxed(value: str) -> bool:
+    """Similar to :obj:`python_module_name`, but relaxed to also accept
+    dash characters (``-``) and cover special cases like ``pip-run``.
+
+    It is recommended, however, that beginners avoid dash characters,
+    as they require advanced knowledge about Python internals.
+
+    The following are disallowed:
+
+    * names starting/ending in dashes,
+    * names ending in ``-stubs`` (potentially collide with :obj:`pep561_stub_name`).
+    """
+    if value.startswith("-") or value.endswith("-"):
+        return False
+    if value.endswith("-stubs"):
+        return False  # Avoid collision with PEP 561
+    return python_module_name(value.replace("-", "_"))
+
+
+def python_entrypoint_group(value: str) -> bool:
+    """See ``Data model > group`` in the :ref:`PyPA's entry-points specification
+    `.
+    """
+    return ENTRYPOINT_GROUP_REGEX.match(value) is not None
+
+
+def python_entrypoint_name(value: str) -> bool:
+    """See ``Data model > name`` in the :ref:`PyPA's entry-points specification
+    `.
+    """
+    if not ENTRYPOINT_REGEX.match(value):
+        return False
+    if not RECOMMEDED_ENTRYPOINT_REGEX.match(value):
+        msg = f"Entry point `{value}` does not follow recommended pattern: "
+        msg += RECOMMEDED_ENTRYPOINT_PATTERN
+        _logger.warning(msg)
+    return True
+
+
+def python_entrypoint_reference(value: str) -> bool:
+    """Reference to a Python object using in the format::
+
+        importable.module:object.attr
+
+    See ``Data model >object reference`` in the :ref:`PyPA's entry-points specification
+    `.
+    """
+    module, _, rest = value.partition(":")
+    if "[" in rest:
+        obj, _, extras_ = rest.partition("[")
+        if extras_.strip()[-1] != "]":
+            return False
+        extras = (x.strip() for x in extras_.strip(string.whitespace + "[]").split(","))
+        if not all(pep508_identifier(e) for e in extras):
+            return False
+        _logger.warning(f"`{value}` - using extras for entry points is not recommended")
+    else:
+        obj = rest
+
+    module_parts = module.split(".")
+    identifiers = _chain(module_parts, obj.split(".")) if rest else iter(module_parts)
+    return all(python_identifier(i.strip()) for i in identifiers)
+
+
+def uint8(value: builtins.int) -> bool:
+    r"""Unsigned 8-bit integer (:math:`0 \leq x < 2^8`)"""
+    return 0 <= value < 2**8
+
+
+def uint16(value: builtins.int) -> bool:
+    r"""Unsigned 16-bit integer (:math:`0 \leq x < 2^{16}`)"""
+    return 0 <= value < 2**16
+
+
+def uint(value: builtins.int) -> bool:
+    r"""Unsigned 64-bit integer (:math:`0 \leq x < 2^{64}`)"""
+    return 0 <= value < 2**64
+
+
+def int(value: builtins.int) -> bool:
+    r"""Signed 64-bit integer (:math:`-2^{63} \leq x < 2^{63}`)"""
+    return -(2**63) <= value < 2**63
+
+
+try:
+    from packaging import licenses as _licenses
+
+    def SPDX(value: str) -> bool:
+        """See :ref:`PyPA's License-Expression specification
+        ` (added in :pep:`639`).
+        """
+        try:
+            _licenses.canonicalize_license_expression(value)
+            return True
+        except _licenses.InvalidLicenseExpression:
+            return False
+
+except ImportError:  # pragma: no cover
+    _logger.warning(
+        "Could not find an up-to-date installation of `packaging`. "
+        "License expressions might not be validated. "
+        "To enforce validation, please install `packaging>=24.2`."
+    )
+
+    def SPDX(value: str) -> bool:
+        return True
diff --git a/setuptools/config/distutils.schema.json b/setuptools/config/distutils.schema.json
new file mode 100644
index 0000000000..93cd2e868a
--- /dev/null
+++ b/setuptools/config/distutils.schema.json
@@ -0,0 +1,26 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+
+  "$id": "https://setuptools.pypa.io/en/latest/deprecated/distutils/configfile.html",
+  "title": "``tool.distutils`` table",
+  "$$description": [
+    "**EXPERIMENTAL** (NOT OFFICIALLY SUPPORTED): Use ``tool.distutils``",
+    "subtables to configure arguments for ``distutils`` commands.",
+    "Originally, ``distutils`` allowed developers to configure arguments for",
+    "``setup.py`` commands via `distutils configuration files",
+    "`_.",
+    "See also `the old Python docs _`."
+  ],
+
+  "type": "object",
+  "properties": {
+    "global": {
+      "type": "object",
+      "description": "Global options applied to all ``distutils`` commands"
+    }
+  },
+  "patternProperties": {
+    ".+": {"type": "object"}
+  },
+  "$comment": "TODO: Is there a practical way of making this schema more specific?"
+}
diff --git a/setuptools/config/expand.py b/setuptools/config/expand.py
new file mode 100644
index 0000000000..531f965013
--- /dev/null
+++ b/setuptools/config/expand.py
@@ -0,0 +1,452 @@
+"""Utility functions to expand configuration directives or special values
+(such glob patterns).
+
+We can split the process of interpreting configuration files into 2 steps:
+
+1. The parsing the file contents from strings to value objects
+   that can be understand by Python (for example a string with a comma
+   separated list of keywords into an actual Python list of strings).
+
+2. The expansion (or post-processing) of these values according to the
+   semantics ``setuptools`` assign to them (for example a configuration field
+   with the ``file:`` directive should be expanded from a list of file paths to
+   a single string with the contents of those files concatenated)
+
+This module focus on the second step, and therefore allow sharing the expansion
+functions among several configuration file formats.
+
+**PRIVATE MODULE**: API reserved for setuptools internal usage only.
+"""
+
+from __future__ import annotations
+
+import ast
+import importlib
+import os
+import pathlib
+import sys
+from collections.abc import Iterable, Iterator, Mapping
+from configparser import ConfigParser
+from glob import iglob
+from importlib.machinery import ModuleSpec, all_suffixes
+from itertools import chain
+from pathlib import Path
+from types import ModuleType, TracebackType
+from typing import TYPE_CHECKING, Any, Callable, TypeVar
+
+from .. import _static
+from .._path import StrPath, same_path as _same_path
+from ..discovery import find_package_path
+from ..warnings import SetuptoolsWarning
+
+from distutils.errors import DistutilsOptionError
+
+if TYPE_CHECKING:
+    from typing_extensions import Self
+
+    from setuptools.dist import Distribution
+
+_K = TypeVar("_K")
+_V_co = TypeVar("_V_co", covariant=True)
+
+
+class StaticModule:
+    """Proxy to a module object that avoids executing arbitrary code."""
+
+    def __init__(self, name: str, spec: ModuleSpec) -> None:
+        module = ast.parse(pathlib.Path(spec.origin).read_bytes())  # type: ignore[arg-type] # Let it raise an error on None
+        vars(self).update(locals())
+        del self.self
+
+    def _find_assignments(self) -> Iterator[tuple[ast.AST, ast.AST]]:
+        for statement in self.module.body:
+            if isinstance(statement, ast.Assign):
+                yield from ((target, statement.value) for target in statement.targets)
+            elif isinstance(statement, ast.AnnAssign) and statement.value:
+                yield (statement.target, statement.value)
+
+    def __getattr__(self, attr: str):
+        """Attempt to load an attribute "statically", via :func:`ast.literal_eval`."""
+        try:
+            return next(
+                ast.literal_eval(value)
+                for target, value in self._find_assignments()
+                if isinstance(target, ast.Name) and target.id == attr
+            )
+        except Exception as e:
+            raise AttributeError(f"{self.name} has no attribute {attr}") from e
+
+
+def glob_relative(
+    patterns: Iterable[str], root_dir: StrPath | None = None
+) -> list[str]:
+    """Expand the list of glob patterns, but preserving relative paths.
+
+    :param list[str] patterns: List of glob patterns
+    :param str root_dir: Path to which globs should be relative
+                         (current directory by default)
+    :rtype: list
+    """
+    glob_characters = {'*', '?', '[', ']', '{', '}'}
+    expanded_values = []
+    root_dir = root_dir or os.getcwd()
+    for value in patterns:
+        # Has globby characters?
+        if any(char in value for char in glob_characters):
+            # then expand the glob pattern while keeping paths *relative*:
+            glob_path = os.path.abspath(os.path.join(root_dir, value))
+            expanded_values.extend(
+                sorted(
+                    os.path.relpath(path, root_dir).replace(os.sep, "/")
+                    for path in iglob(glob_path, recursive=True)
+                )
+            )
+
+        else:
+            # take the value as-is
+            path = os.path.relpath(value, root_dir).replace(os.sep, "/")
+            expanded_values.append(path)
+
+    return expanded_values
+
+
+def read_files(
+    filepaths: StrPath | Iterable[StrPath], root_dir: StrPath | None = None
+) -> str:
+    """Return the content of the files concatenated using ``\n`` as str
+
+    This function is sandboxed and won't reach anything outside ``root_dir``
+
+    (By default ``root_dir`` is the current directory).
+    """
+    from more_itertools import always_iterable
+
+    root_dir = os.path.abspath(root_dir or os.getcwd())
+    _filepaths = (os.path.join(root_dir, path) for path in always_iterable(filepaths))
+    return '\n'.join(
+        _read_file(path)
+        for path in _filter_existing_files(_filepaths)
+        if _assert_local(path, root_dir)
+    )
+
+
+def _filter_existing_files(filepaths: Iterable[StrPath]) -> Iterator[StrPath]:
+    for path in filepaths:
+        if os.path.isfile(path):
+            yield path
+        else:
+            SetuptoolsWarning.emit(f"File {path!r} cannot be found")
+
+
+def _read_file(filepath: bytes | StrPath) -> str:
+    with open(filepath, encoding='utf-8') as f:
+        return f.read()
+
+
+def _assert_local(filepath: StrPath, root_dir: str):
+    if Path(os.path.abspath(root_dir)) not in Path(os.path.abspath(filepath)).parents:
+        msg = f"Cannot access {filepath!r} (or anything outside {root_dir!r})"
+        raise DistutilsOptionError(msg)
+
+    return True
+
+
+def read_attr(
+    attr_desc: str,
+    package_dir: Mapping[str, str] | None = None,
+    root_dir: StrPath | None = None,
+) -> Any:
+    """Reads the value of an attribute from a module.
+
+    This function will try to read the attributed statically first
+    (via :func:`ast.literal_eval`), and only evaluate the module if it fails.
+
+    Examples:
+        read_attr("package.attr")
+        read_attr("package.module.attr")
+
+    :param str attr_desc: Dot-separated string describing how to reach the
+        attribute (see examples above)
+    :param dict[str, str] package_dir: Mapping of package names to their
+        location in disk (represented by paths relative to ``root_dir``).
+    :param str root_dir: Path to directory containing all the packages in
+        ``package_dir`` (current directory by default).
+    :rtype: str
+    """
+    root_dir = root_dir or os.getcwd()
+    attrs_path = attr_desc.strip().split('.')
+    attr_name = attrs_path.pop()
+    module_name = '.'.join(attrs_path)
+    module_name = module_name or '__init__'
+    path = _find_module(module_name, package_dir, root_dir)
+    spec = _find_spec(module_name, path)
+
+    try:
+        value = getattr(StaticModule(module_name, spec), attr_name)
+        # XXX: Is marking as static contents coming from modules too optimistic?
+        return _static.attempt_conversion(value)
+    except Exception:
+        # fallback to evaluate module
+        module = _load_spec(spec, module_name)
+        return getattr(module, attr_name)
+
+
+def _find_spec(module_name: str, module_path: StrPath | None) -> ModuleSpec:
+    spec = importlib.util.spec_from_file_location(module_name, module_path)
+    spec = spec or importlib.util.find_spec(module_name)
+
+    if spec is None:
+        raise ModuleNotFoundError(module_name)
+
+    return spec
+
+
+def _load_spec(spec: ModuleSpec, module_name: str) -> ModuleType:
+    name = getattr(spec, "__name__", module_name)
+    if name in sys.modules:
+        return sys.modules[name]
+    module = importlib.util.module_from_spec(spec)
+    sys.modules[name] = module  # cache (it also ensures `==` works on loaded items)
+    assert spec.loader is not None
+    spec.loader.exec_module(module)
+    return module
+
+
+def _find_module(
+    module_name: str, package_dir: Mapping[str, str] | None, root_dir: StrPath
+) -> str | None:
+    """Find the path to the module named ``module_name``,
+    considering the ``package_dir`` in the build configuration and ``root_dir``.
+
+    >>> tmp = getfixture('tmpdir')
+    >>> _ = tmp.ensure("a/b/c.py")
+    >>> _ = tmp.ensure("a/b/d/__init__.py")
+    >>> r = lambda x: x.replace(str(tmp), "tmp").replace(os.sep, "/")
+    >>> r(_find_module("a.b.c", None, tmp))
+    'tmp/a/b/c.py'
+    >>> r(_find_module("f.g.h", {"": "1", "f": "2", "f.g": "3", "f.g.h": "a/b/d"}, tmp))
+    'tmp/a/b/d/__init__.py'
+    """
+    path_start = find_package_path(module_name, package_dir or {}, root_dir)
+    candidates = chain.from_iterable(
+        (f"{path_start}{ext}", os.path.join(path_start, f"__init__{ext}"))
+        for ext in all_suffixes()
+    )
+    return next((x for x in candidates if os.path.isfile(x)), None)
+
+
+def resolve_class(
+    qualified_class_name: str,
+    package_dir: Mapping[str, str] | None = None,
+    root_dir: StrPath | None = None,
+) -> Callable:
+    """Given a qualified class name, return the associated class object"""
+    root_dir = root_dir or os.getcwd()
+    idx = qualified_class_name.rfind('.')
+    class_name = qualified_class_name[idx + 1 :]
+    pkg_name = qualified_class_name[:idx]
+
+    path = _find_module(pkg_name, package_dir, root_dir)
+    module = _load_spec(_find_spec(pkg_name, path), pkg_name)
+    return getattr(module, class_name)
+
+
+def cmdclass(
+    values: dict[str, str],
+    package_dir: Mapping[str, str] | None = None,
+    root_dir: StrPath | None = None,
+) -> dict[str, Callable]:
+    """Given a dictionary mapping command names to strings for qualified class
+    names, apply :func:`resolve_class` to the dict values.
+    """
+    return {k: resolve_class(v, package_dir, root_dir) for k, v in values.items()}
+
+
+def find_packages(
+    *,
+    namespaces=True,
+    fill_package_dir: dict[str, str] | None = None,
+    root_dir: StrPath | None = None,
+    **kwargs,
+) -> list[str]:
+    """Works similarly to :func:`setuptools.find_packages`, but with all
+    arguments given as keyword arguments. Moreover, ``where`` can be given
+    as a list (the results will be simply concatenated).
+
+    When the additional keyword argument ``namespaces`` is ``True``, it will
+    behave like :func:`setuptools.find_namespace_packages`` (i.e. include
+    implicit namespaces as per :pep:`420`).
+
+    The ``where`` argument will be considered relative to ``root_dir`` (or the current
+    working directory when ``root_dir`` is not given).
+
+    If the ``fill_package_dir`` argument is passed, this function will consider it as a
+    similar data structure to the ``package_dir`` configuration parameter add fill-in
+    any missing package location.
+
+    :rtype: list
+    """
+    from more_itertools import always_iterable, unique_everseen
+
+    from setuptools.discovery import construct_package_dir
+
+    # check "not namespaces" first due to python/mypy#6232
+    if not namespaces:
+        from setuptools.discovery import PackageFinder
+    else:
+        from setuptools.discovery import PEP420PackageFinder as PackageFinder
+
+    root_dir = root_dir or os.curdir
+    where = kwargs.pop('where', ['.'])
+    packages: list[str] = []
+    fill_package_dir = {} if fill_package_dir is None else fill_package_dir
+    search = list(unique_everseen(always_iterable(where)))
+
+    if len(search) == 1 and all(not _same_path(search[0], x) for x in (".", root_dir)):
+        fill_package_dir.setdefault("", search[0])
+
+    for path in search:
+        package_path = _nest_path(root_dir, path)
+        pkgs = PackageFinder.find(package_path, **kwargs)
+        packages.extend(pkgs)
+        if pkgs and not (
+            fill_package_dir.get("") == path or os.path.samefile(package_path, root_dir)
+        ):
+            fill_package_dir.update(construct_package_dir(pkgs, path))
+
+    return packages
+
+
+def _nest_path(parent: StrPath, path: StrPath) -> str:
+    path = parent if path in {".", ""} else os.path.join(parent, path)
+    return os.path.normpath(path)
+
+
+def version(value: Callable | Iterable[str | int] | str) -> str:
+    """When getting the version directly from an attribute,
+    it should be normalised to string.
+    """
+    _value = value() if callable(value) else value
+
+    if isinstance(_value, str):
+        return _value
+    if hasattr(_value, '__iter__'):
+        return '.'.join(map(str, _value))
+    return f'{_value}'
+
+
+def canonic_package_data(package_data: dict) -> dict:
+    if "*" in package_data:
+        package_data[""] = package_data.pop("*")
+    return package_data
+
+
+def canonic_data_files(
+    data_files: list | dict, root_dir: StrPath | None = None
+) -> list[tuple[str, list[str]]]:
+    """For compatibility with ``setup.py``, ``data_files`` should be a list
+    of pairs instead of a dict.
+
+    This function also expands glob patterns.
+    """
+    if isinstance(data_files, list):
+        return data_files
+
+    return [
+        (dest, glob_relative(patterns, root_dir))
+        for dest, patterns in data_files.items()
+    ]
+
+
+def entry_points(
+    text: str, text_source: str = "entry-points"
+) -> dict[str, dict[str, str]]:
+    """Given the contents of entry-points file,
+    process it into a 2-level dictionary (``dict[str, dict[str, str]]``).
+    The first level keys are entry-point groups, the second level keys are
+    entry-point names, and the second level values are references to objects
+    (that correspond to the entry-point value).
+    """
+    # Using undocumented behaviour, see python/typeshed#12700
+    parser = ConfigParser(default_section=None, delimiters=("=",))  # type: ignore[call-overload]
+    parser.optionxform = str  # case sensitive
+    parser.read_string(text, text_source)
+    groups = {k: dict(v.items()) for k, v in parser.items()}
+    groups.pop(parser.default_section, None)
+    return groups
+
+
+class EnsurePackagesDiscovered:
+    """Some expand functions require all the packages to already be discovered before
+    they run, e.g. :func:`read_attr`, :func:`resolve_class`, :func:`cmdclass`.
+
+    Therefore in some cases we will need to run autodiscovery during the evaluation of
+    the configuration. However, it is better to postpone calling package discovery as
+    much as possible, because some parameters can influence it (e.g. ``package_dir``),
+    and those might not have been processed yet.
+    """
+
+    def __init__(self, distribution: Distribution) -> None:
+        self._dist = distribution
+        self._called = False
+
+    def __call__(self):
+        """Trigger the automatic package discovery, if it is still necessary."""
+        if not self._called:
+            self._called = True
+            self._dist.set_defaults(name=False)  # Skip name, we can still be parsing
+
+    def __enter__(self) -> Self:
+        return self
+
+    def __exit__(
+        self,
+        exc_type: type[BaseException] | None,
+        exc_value: BaseException | None,
+        traceback: TracebackType | None,
+    ):
+        if self._called:
+            self._dist.set_defaults.analyse_name()  # Now we can set a default name
+
+    def _get_package_dir(self) -> Mapping[str, str]:
+        self()
+        pkg_dir = self._dist.package_dir
+        return {} if pkg_dir is None else pkg_dir
+
+    @property
+    def package_dir(self) -> Mapping[str, str]:
+        """Proxy to ``package_dir`` that may trigger auto-discovery when used."""
+        return LazyMappingProxy(self._get_package_dir)
+
+
+class LazyMappingProxy(Mapping[_K, _V_co]):
+    """Mapping proxy that delays resolving the target object, until really needed.
+
+    >>> def obtain_mapping():
+    ...     print("Running expensive function!")
+    ...     return {"key": "value", "other key": "other value"}
+    >>> mapping = LazyMappingProxy(obtain_mapping)
+    >>> mapping["key"]
+    Running expensive function!
+    'value'
+    >>> mapping["other key"]
+    'other value'
+    """
+
+    def __init__(self, obtain_mapping_value: Callable[[], Mapping[_K, _V_co]]) -> None:
+        self._obtain = obtain_mapping_value
+        self._value: Mapping[_K, _V_co] | None = None
+
+    def _target(self) -> Mapping[_K, _V_co]:
+        if self._value is None:
+            self._value = self._obtain()
+        return self._value
+
+    def __getitem__(self, key: _K) -> _V_co:
+        return self._target()[key]
+
+    def __len__(self) -> int:
+        return len(self._target())
+
+    def __iter__(self) -> Iterator[_K]:
+        return iter(self._target())
diff --git a/setuptools/config/pyprojecttoml.py b/setuptools/config/pyprojecttoml.py
new file mode 100644
index 0000000000..fd6c5968c8
--- /dev/null
+++ b/setuptools/config/pyprojecttoml.py
@@ -0,0 +1,468 @@
+"""
+Load setuptools configuration from ``pyproject.toml`` files.
+
+**PRIVATE MODULE**: API reserved for setuptools internal usage only.
+
+To read project metadata, consider using
+``build.util.project_wheel_metadata`` (https://pypi.org/project/build/).
+For simple scenarios, you can also try parsing the file directly
+with the help of ``tomllib`` or ``tomli``.
+"""
+
+from __future__ import annotations
+
+import logging
+import os
+from collections.abc import Mapping
+from contextlib import contextmanager
+from functools import partial
+from types import TracebackType
+from typing import TYPE_CHECKING, Any, Callable
+
+from .._path import StrPath
+from ..errors import FileError, InvalidConfigError
+from ..warnings import SetuptoolsWarning
+from . import expand as _expand
+from ._apply_pyprojecttoml import _PREVIOUSLY_DEFINED, _MissingDynamic, apply as _apply
+
+if TYPE_CHECKING:
+    from typing_extensions import Self
+
+    from setuptools.dist import Distribution
+
+_logger = logging.getLogger(__name__)
+
+
+def load_file(filepath: StrPath) -> dict:
+    from ..compat.py310 import tomllib
+
+    with open(filepath, "rb") as file:
+        return tomllib.load(file)
+
+
+def validate(config: dict, filepath: StrPath) -> bool:
+    from . import _validate_pyproject as validator
+
+    trove_classifier = validator.FORMAT_FUNCTIONS.get("trove-classifier")
+    if hasattr(trove_classifier, "_disable_download"):
+        # Improve reproducibility by default. See abravalheri/validate-pyproject#31
+        trove_classifier._disable_download()  # type: ignore[union-attr]
+
+    try:
+        return validator.validate(config)
+    except validator.ValidationError as ex:
+        summary = f"configuration error: {ex.summary}"
+        if ex.name.strip("`") != "project":
+            # Probably it is just a field missing/misnamed, not worthy the verbosity...
+            _logger.debug(summary)
+            _logger.debug(ex.details)
+
+        error = f"invalid pyproject.toml config: {ex.name}."
+        raise ValueError(f"{error}\n{summary}") from None
+
+
+def apply_configuration(
+    dist: Distribution,
+    filepath: StrPath,
+    ignore_option_errors: bool = False,
+) -> Distribution:
+    """Apply the configuration from a ``pyproject.toml`` file into an existing
+    distribution object.
+    """
+    config = read_configuration(filepath, True, ignore_option_errors, dist)
+    return _apply(dist, config, filepath)
+
+
+def read_configuration(
+    filepath: StrPath,
+    expand: bool = True,
+    ignore_option_errors: bool = False,
+    dist: Distribution | None = None,
+) -> dict[str, Any]:
+    """Read given configuration file and returns options from it as a dict.
+
+    :param str|unicode filepath: Path to configuration file in the ``pyproject.toml``
+        format.
+
+    :param bool expand: Whether to expand directives and other computed values
+        (i.e. post-process the given configuration)
+
+    :param bool ignore_option_errors: Whether to silently ignore
+        options, values of which could not be resolved (e.g. due to exceptions
+        in directives such as file:, attr:, etc.).
+        If False exceptions are propagated as expected.
+
+    :param Distribution|None: Distribution object to which the configuration refers.
+        If not given a dummy object will be created and discarded after the
+        configuration is read. This is used for auto-discovery of packages and in the
+        case a dynamic configuration (e.g. ``attr`` or ``cmdclass``) is expanded.
+        When ``expand=False`` this object is simply ignored.
+
+    :rtype: dict
+    """
+    filepath = os.path.abspath(filepath)
+
+    if not os.path.isfile(filepath):
+        raise FileError(f"Configuration file {filepath!r} does not exist.")
+
+    asdict = load_file(filepath) or {}
+    project_table = asdict.get("project", {})
+    tool_table = asdict.get("tool", {})
+    setuptools_table = tool_table.get("setuptools", {})
+    if not asdict or not (project_table or setuptools_table):
+        return {}  # User is not using pyproject to configure setuptools
+
+    if "setuptools" in asdict.get("tools", {}):
+        # let the user know they probably have a typo in their metadata
+        _ToolsTypoInMetadata.emit()
+
+    if "distutils" in tool_table:
+        _ExperimentalConfiguration.emit(subject="[tool.distutils]")
+
+    # There is an overall sense in the community that making include_package_data=True
+    # the default would be an improvement.
+    # `ini2toml` backfills include_package_data=False when nothing is explicitly given,
+    # therefore setting a default here is backwards compatible.
+    if dist and dist.include_package_data is not None:
+        setuptools_table.setdefault("include-package-data", dist.include_package_data)
+    else:
+        setuptools_table.setdefault("include-package-data", True)
+    # Persist changes:
+    asdict["tool"] = tool_table
+    tool_table["setuptools"] = setuptools_table
+
+    if "ext-modules" in setuptools_table:
+        _ExperimentalConfiguration.emit(subject="[tool.setuptools.ext-modules]")
+
+    with _ignore_errors(ignore_option_errors):
+        # Don't complain about unrelated errors (e.g. tools not using the "tool" table)
+        subset = {"project": project_table, "tool": {"setuptools": setuptools_table}}
+        validate(subset, filepath)
+
+    if expand:
+        root_dir = os.path.dirname(filepath)
+        return expand_configuration(asdict, root_dir, ignore_option_errors, dist)
+
+    return asdict
+
+
+def expand_configuration(
+    config: dict,
+    root_dir: StrPath | None = None,
+    ignore_option_errors: bool = False,
+    dist: Distribution | None = None,
+) -> dict:
+    """Given a configuration with unresolved fields (e.g. dynamic, cmdclass, ...)
+    find their final values.
+
+    :param dict config: Dict containing the configuration for the distribution
+    :param str root_dir: Top-level directory for the distribution/project
+        (the same directory where ``pyproject.toml`` is place)
+    :param bool ignore_option_errors: see :func:`read_configuration`
+    :param Distribution|None: Distribution object to which the configuration refers.
+        If not given a dummy object will be created and discarded after the
+        configuration is read. Used in the case a dynamic configuration
+        (e.g. ``attr`` or ``cmdclass``).
+
+    :rtype: dict
+    """
+    return _ConfigExpander(config, root_dir, ignore_option_errors, dist).expand()
+
+
+class _ConfigExpander:
+    def __init__(
+        self,
+        config: dict,
+        root_dir: StrPath | None = None,
+        ignore_option_errors: bool = False,
+        dist: Distribution | None = None,
+    ) -> None:
+        self.config = config
+        self.root_dir = root_dir or os.getcwd()
+        self.project_cfg = config.get("project", {})
+        self.dynamic = self.project_cfg.get("dynamic", [])
+        self.setuptools_cfg = config.get("tool", {}).get("setuptools", {})
+        self.dynamic_cfg = self.setuptools_cfg.get("dynamic", {})
+        self.ignore_option_errors = ignore_option_errors
+        self._dist = dist
+        self._referenced_files = set[str]()
+
+    def _ensure_dist(self) -> Distribution:
+        from setuptools.dist import Distribution
+
+        attrs = {"src_root": self.root_dir, "name": self.project_cfg.get("name", None)}
+        return self._dist or Distribution(attrs)
+
+    def _process_field(self, container: dict, field: str, fn: Callable):
+        if field in container:
+            with _ignore_errors(self.ignore_option_errors):
+                container[field] = fn(container[field])
+
+    def _canonic_package_data(self, field="package-data"):
+        package_data = self.setuptools_cfg.get(field, {})
+        return _expand.canonic_package_data(package_data)
+
+    def expand(self):
+        self._expand_packages()
+        self._canonic_package_data()
+        self._canonic_package_data("exclude-package-data")
+
+        # A distribution object is required for discovering the correct package_dir
+        dist = self._ensure_dist()
+        ctx = _EnsurePackagesDiscovered(dist, self.project_cfg, self.setuptools_cfg)
+        with ctx as ensure_discovered:
+            package_dir = ensure_discovered.package_dir
+            self._expand_data_files()
+            self._expand_cmdclass(package_dir)
+            self._expand_all_dynamic(dist, package_dir)
+
+        dist._referenced_files.update(self._referenced_files)
+        return self.config
+
+    def _expand_packages(self):
+        packages = self.setuptools_cfg.get("packages")
+        if packages is None or isinstance(packages, (list, tuple)):
+            return
+
+        find = packages.get("find")
+        if isinstance(find, dict):
+            find["root_dir"] = self.root_dir
+            find["fill_package_dir"] = self.setuptools_cfg.setdefault("package-dir", {})
+            with _ignore_errors(self.ignore_option_errors):
+                self.setuptools_cfg["packages"] = _expand.find_packages(**find)
+
+    def _expand_data_files(self):
+        data_files = partial(_expand.canonic_data_files, root_dir=self.root_dir)
+        self._process_field(self.setuptools_cfg, "data-files", data_files)
+
+    def _expand_cmdclass(self, package_dir: Mapping[str, str]):
+        root_dir = self.root_dir
+        cmdclass = partial(_expand.cmdclass, package_dir=package_dir, root_dir=root_dir)
+        self._process_field(self.setuptools_cfg, "cmdclass", cmdclass)
+
+    def _expand_all_dynamic(self, dist: Distribution, package_dir: Mapping[str, str]):
+        special = (  # need special handling
+            "version",
+            "readme",
+            "entry-points",
+            "scripts",
+            "gui-scripts",
+            "classifiers",
+            "dependencies",
+            "optional-dependencies",
+        )
+        # `_obtain` functions are assumed to raise appropriate exceptions/warnings.
+        obtained_dynamic = {
+            field: self._obtain(dist, field, package_dir)
+            for field in self.dynamic
+            if field not in special
+        }
+        obtained_dynamic.update(
+            self._obtain_entry_points(dist, package_dir) or {},
+            version=self._obtain_version(dist, package_dir),
+            readme=self._obtain_readme(dist),
+            classifiers=self._obtain_classifiers(dist),
+            dependencies=self._obtain_dependencies(dist),
+            optional_dependencies=self._obtain_optional_dependencies(dist),
+        )
+        # `None` indicates there is nothing in `tool.setuptools.dynamic` but the value
+        # might have already been set by setup.py/extensions, so avoid overwriting.
+        updates = {k: v for k, v in obtained_dynamic.items() if v is not None}
+        self.project_cfg.update(updates)
+
+    def _ensure_previously_set(self, dist: Distribution, field: str):
+        previous = _PREVIOUSLY_DEFINED[field](dist)
+        if previous is None and not self.ignore_option_errors:
+            msg = (
+                f"No configuration found for dynamic {field!r}.\n"
+                "Some dynamic fields need to be specified via `tool.setuptools.dynamic`"
+                "\nothers must be specified via the equivalent attribute in `setup.py`."
+            )
+            raise InvalidConfigError(msg)
+
+    def _expand_directive(
+        self, specifier: str, directive, package_dir: Mapping[str, str]
+    ):
+        from more_itertools import always_iterable
+
+        with _ignore_errors(self.ignore_option_errors):
+            root_dir = self.root_dir
+            if "file" in directive:
+                self._referenced_files.update(always_iterable(directive["file"]))
+                return _expand.read_files(directive["file"], root_dir)
+            if "attr" in directive:
+                return _expand.read_attr(directive["attr"], package_dir, root_dir)
+            raise ValueError(f"invalid `{specifier}`: {directive!r}")
+        return None
+
+    def _obtain(self, dist: Distribution, field: str, package_dir: Mapping[str, str]):
+        if field in self.dynamic_cfg:
+            return self._expand_directive(
+                f"tool.setuptools.dynamic.{field}",
+                self.dynamic_cfg[field],
+                package_dir,
+            )
+        self._ensure_previously_set(dist, field)
+        return None
+
+    def _obtain_version(self, dist: Distribution, package_dir: Mapping[str, str]):
+        # Since plugins can set version, let's silently skip if it cannot be obtained
+        if "version" in self.dynamic and "version" in self.dynamic_cfg:
+            return _expand.version(
+                # We already do an early check for the presence of "version"
+                self._obtain(dist, "version", package_dir)  # pyright: ignore[reportArgumentType]
+            )
+        return None
+
+    def _obtain_readme(self, dist: Distribution) -> dict[str, str] | None:
+        if "readme" not in self.dynamic:
+            return None
+
+        dynamic_cfg = self.dynamic_cfg
+        if "readme" in dynamic_cfg:
+            return {
+                # We already do an early check for the presence of "readme"
+                "text": self._obtain(dist, "readme", {}),
+                "content-type": dynamic_cfg["readme"].get("content-type", "text/x-rst"),
+            }  # pyright: ignore[reportReturnType]
+
+        self._ensure_previously_set(dist, "readme")
+        return None
+
+    def _obtain_entry_points(
+        self, dist: Distribution, package_dir: Mapping[str, str]
+    ) -> dict[str, dict[str, Any]] | None:
+        fields = ("entry-points", "scripts", "gui-scripts")
+        if not any(field in self.dynamic for field in fields):
+            return None
+
+        text = self._obtain(dist, "entry-points", package_dir)
+        if text is None:
+            return None
+
+        groups = _expand.entry_points(text)
+        # Any is str | dict[str, str], but causes variance issues
+        expanded: dict[str, dict[str, Any]] = {"entry-points": groups}
+
+        def _set_scripts(field: str, group: str):
+            if group in groups:
+                value = groups.pop(group)
+                if field not in self.dynamic:
+                    raise InvalidConfigError(_MissingDynamic.details(field, value))
+                expanded[field] = value
+
+        _set_scripts("scripts", "console_scripts")
+        _set_scripts("gui-scripts", "gui_scripts")
+
+        return expanded
+
+    def _obtain_classifiers(self, dist: Distribution):
+        if "classifiers" in self.dynamic:
+            value = self._obtain(dist, "classifiers", {})
+            if value:
+                return value.splitlines()
+        return None
+
+    def _obtain_dependencies(self, dist: Distribution):
+        if "dependencies" in self.dynamic:
+            value = self._obtain(dist, "dependencies", {})
+            if value:
+                return _parse_requirements_list(value)
+        return None
+
+    def _obtain_optional_dependencies(self, dist: Distribution):
+        if "optional-dependencies" not in self.dynamic:
+            return None
+        if "optional-dependencies" in self.dynamic_cfg:
+            optional_dependencies_map = self.dynamic_cfg["optional-dependencies"]
+            assert isinstance(optional_dependencies_map, dict)
+            return {
+                group: _parse_requirements_list(
+                    self._expand_directive(
+                        f"tool.setuptools.dynamic.optional-dependencies.{group}",
+                        directive,
+                        {},
+                    )
+                )
+                for group, directive in optional_dependencies_map.items()
+            }
+        self._ensure_previously_set(dist, "optional-dependencies")
+        return None
+
+
+def _parse_requirements_list(value):
+    return [
+        line
+        for line in value.splitlines()
+        if line.strip() and not line.strip().startswith("#")
+    ]
+
+
+@contextmanager
+def _ignore_errors(ignore_option_errors: bool):
+    if not ignore_option_errors:
+        yield
+        return
+
+    try:
+        yield
+    except Exception as ex:
+        _logger.debug(f"ignored error: {ex.__class__.__name__} - {ex}")
+
+
+class _EnsurePackagesDiscovered(_expand.EnsurePackagesDiscovered):
+    def __init__(
+        self, distribution: Distribution, project_cfg: dict, setuptools_cfg: dict
+    ) -> None:
+        super().__init__(distribution)
+        self._project_cfg = project_cfg
+        self._setuptools_cfg = setuptools_cfg
+
+    def __enter__(self) -> Self:
+        """When entering the context, the values of ``packages``, ``py_modules`` and
+        ``package_dir`` that are missing in ``dist`` are copied from ``setuptools_cfg``.
+        """
+        dist, cfg = self._dist, self._setuptools_cfg
+        package_dir: dict[str, str] = cfg.setdefault("package-dir", {})
+        package_dir.update(dist.package_dir or {})
+        dist.package_dir = package_dir  # needs to be the same object
+
+        dist.set_defaults._ignore_ext_modules()  # pyproject.toml-specific behaviour
+
+        # Set `name`, `py_modules` and `packages` in dist to short-circuit
+        # auto-discovery, but avoid overwriting empty lists purposefully set by users.
+        if dist.metadata.name is None:
+            dist.metadata.name = self._project_cfg.get("name")
+        if dist.py_modules is None:
+            dist.py_modules = cfg.get("py-modules")
+        if dist.packages is None:
+            dist.packages = cfg.get("packages")
+
+        return super().__enter__()
+
+    def __exit__(
+        self,
+        exc_type: type[BaseException] | None,
+        exc_value: BaseException | None,
+        traceback: TracebackType | None,
+    ) -> None:
+        """When exiting the context, if values of ``packages``, ``py_modules`` and
+        ``package_dir`` are missing in ``setuptools_cfg``, copy from ``dist``.
+        """
+        # If anything was discovered set them back, so they count in the final config.
+        self._setuptools_cfg.setdefault("packages", self._dist.packages)
+        self._setuptools_cfg.setdefault("py-modules", self._dist.py_modules)
+        return super().__exit__(exc_type, exc_value, traceback)
+
+
+class _ExperimentalConfiguration(SetuptoolsWarning):
+    _SUMMARY = (
+        "`{subject}` in `pyproject.toml` is still *experimental* "
+        "and likely to change in future releases."
+    )
+
+
+class _ToolsTypoInMetadata(SetuptoolsWarning):
+    _SUMMARY = (
+        "Ignoring [tools.setuptools] in pyproject.toml, did you mean [tool.setuptools]?"
+    )
diff --git a/setuptools/config/setupcfg.py b/setuptools/config/setupcfg.py
new file mode 100644
index 0000000000..633aa9d45d
--- /dev/null
+++ b/setuptools/config/setupcfg.py
@@ -0,0 +1,780 @@
+"""
+Load setuptools configuration from ``setup.cfg`` files.
+
+**API will be made private in the future**
+
+To read project metadata, consider using
+``build.util.project_wheel_metadata`` (https://pypi.org/project/build/).
+For simple scenarios, you can also try parsing the file directly
+with the help of ``configparser``.
+"""
+
+from __future__ import annotations
+
+import contextlib
+import functools
+import os
+from collections import defaultdict
+from collections.abc import Iterable, Iterator
+from functools import partial, wraps
+from typing import TYPE_CHECKING, Any, Callable, ClassVar, Generic, TypeVar, cast
+
+from packaging.markers import default_environment as marker_env
+from packaging.requirements import InvalidRequirement, Requirement
+from packaging.version import InvalidVersion, Version
+
+from .. import _static
+from .._path import StrPath
+from ..errors import FileError, OptionError
+from ..warnings import SetuptoolsDeprecationWarning
+from . import expand
+
+if TYPE_CHECKING:
+    from typing_extensions import TypeAlias
+
+    from setuptools.dist import Distribution
+
+    from distutils.dist import DistributionMetadata
+
+SingleCommandOptions: TypeAlias = dict[str, tuple[str, Any]]
+"""Dict that associate the name of the options of a particular command to a
+tuple. The first element of the tuple indicates the origin of the option value
+(e.g. the name of the configuration file where it was read from),
+while the second element of the tuple is the option value itself
+"""
+AllCommandOptions: TypeAlias = dict[str, SingleCommandOptions]
+"""cmd name => its options"""
+Target = TypeVar("Target", "Distribution", "DistributionMetadata")
+
+
+def read_configuration(
+    filepath: StrPath, find_others: bool = False, ignore_option_errors: bool = False
+) -> dict:
+    """Read given configuration file and returns options from it as a dict.
+
+    :param str|unicode filepath: Path to configuration file
+        to get options from.
+
+    :param bool find_others: Whether to search for other configuration files
+        which could be on in various places.
+
+    :param bool ignore_option_errors: Whether to silently ignore
+        options, values of which could not be resolved (e.g. due to exceptions
+        in directives such as file:, attr:, etc.).
+        If False exceptions are propagated as expected.
+
+    :rtype: dict
+    """
+    from setuptools.dist import Distribution
+
+    dist = Distribution()
+    filenames = dist.find_config_files() if find_others else []
+    handlers = _apply(dist, filepath, filenames, ignore_option_errors)
+    return configuration_to_dict(handlers)
+
+
+def apply_configuration(dist: Distribution, filepath: StrPath) -> Distribution:
+    """Apply the configuration from a ``setup.cfg`` file into an existing
+    distribution object.
+    """
+    _apply(dist, filepath)
+    dist._finalize_requires()
+    return dist
+
+
+def _apply(
+    dist: Distribution,
+    filepath: StrPath,
+    other_files: Iterable[StrPath] = (),
+    ignore_option_errors: bool = False,
+) -> tuple[ConfigMetadataHandler, ConfigOptionsHandler]:
+    """Read configuration from ``filepath`` and applies to the ``dist`` object."""
+    from setuptools.dist import _Distribution
+
+    filepath = os.path.abspath(filepath)
+
+    if not os.path.isfile(filepath):
+        raise FileError(f'Configuration file {filepath} does not exist.')
+
+    current_directory = os.getcwd()
+    os.chdir(os.path.dirname(filepath))
+    filenames = [*other_files, filepath]
+
+    try:
+        # TODO: Temporary cast until mypy 1.12 is released with upstream fixes from typeshed
+        _Distribution.parse_config_files(dist, filenames=cast(list[str], filenames))
+        handlers = parse_configuration(
+            dist, dist.command_options, ignore_option_errors=ignore_option_errors
+        )
+        dist._finalize_license_files()
+    finally:
+        os.chdir(current_directory)
+
+    return handlers
+
+
+def _get_option(target_obj: Distribution | DistributionMetadata, key: str):
+    """
+    Given a target object and option key, get that option from
+    the target object, either through a get_{key} method or
+    from an attribute directly.
+    """
+    getter_name = f'get_{key}'
+    by_attribute = functools.partial(getattr, target_obj, key)
+    getter = getattr(target_obj, getter_name, by_attribute)
+    return getter()
+
+
+def configuration_to_dict(
+    handlers: Iterable[
+        ConfigHandler[Distribution] | ConfigHandler[DistributionMetadata]
+    ],
+) -> dict:
+    """Returns configuration data gathered by given handlers as a dict.
+
+    :param Iterable[ConfigHandler] handlers: Handlers list,
+        usually from parse_configuration()
+
+    :rtype: dict
+    """
+    config_dict: dict = defaultdict(dict)
+
+    for handler in handlers:
+        for option in handler.set_options:
+            value = _get_option(handler.target_obj, option)
+            config_dict[handler.section_prefix][option] = value
+
+    return config_dict
+
+
+def parse_configuration(
+    distribution: Distribution,
+    command_options: AllCommandOptions,
+    ignore_option_errors: bool = False,
+) -> tuple[ConfigMetadataHandler, ConfigOptionsHandler]:
+    """Performs additional parsing of configuration options
+    for a distribution.
+
+    Returns a list of used option handlers.
+
+    :param Distribution distribution:
+    :param dict command_options:
+    :param bool ignore_option_errors: Whether to silently ignore
+        options, values of which could not be resolved (e.g. due to exceptions
+        in directives such as file:, attr:, etc.).
+        If False exceptions are propagated as expected.
+    :rtype: list
+    """
+    with expand.EnsurePackagesDiscovered(distribution) as ensure_discovered:
+        options = ConfigOptionsHandler(
+            distribution,
+            command_options,
+            ignore_option_errors,
+            ensure_discovered,
+        )
+
+        options.parse()
+        if not distribution.package_dir:
+            distribution.package_dir = options.package_dir  # Filled by `find_packages`
+
+        meta = ConfigMetadataHandler(
+            distribution.metadata,
+            command_options,
+            ignore_option_errors,
+            ensure_discovered,
+            distribution.package_dir,
+            distribution.src_root,
+        )
+        meta.parse()
+        distribution._referenced_files.update(
+            options._referenced_files, meta._referenced_files
+        )
+
+    return meta, options
+
+
+def _warn_accidental_env_marker_misconfig(label: str, orig_value: str, parsed: list):
+    """Because users sometimes misinterpret this configuration:
+
+    [options.extras_require]
+    foo = bar;python_version<"4"
+
+    It looks like one requirement with an environment marker
+    but because there is no newline, it's parsed as two requirements
+    with a semicolon as separator.
+
+    Therefore, if:
+        * input string does not contain a newline AND
+        * parsed result contains two requirements AND
+        * parsing of the two parts from the result (";")
+        leads in a valid Requirement with a valid marker
+    a UserWarning is shown to inform the user about the possible problem.
+    """
+    if "\n" in orig_value or len(parsed) != 2:
+        return
+
+    markers = marker_env().keys()
+
+    try:
+        req = Requirement(parsed[1])
+        if req.name in markers:
+            _AmbiguousMarker.emit(field=label, req=parsed[1])
+    except InvalidRequirement as ex:
+        if any(parsed[1].startswith(marker) for marker in markers):
+            msg = _AmbiguousMarker.message(field=label, req=parsed[1])
+            raise InvalidRequirement(msg) from ex
+
+
+class ConfigHandler(Generic[Target]):
+    """Handles metadata supplied in configuration files."""
+
+    section_prefix: str
+    """Prefix for config sections handled by this handler.
+    Must be provided by class heirs.
+
+    """
+
+    aliases: ClassVar[dict[str, str]] = {}
+    """Options aliases.
+    For compatibility with various packages. E.g.: d2to1 and pbr.
+    Note: `-` in keys is replaced with `_` by config parser.
+
+    """
+
+    def __init__(
+        self,
+        target_obj: Target,
+        options: AllCommandOptions,
+        ignore_option_errors,
+        ensure_discovered: expand.EnsurePackagesDiscovered,
+    ) -> None:
+        self.ignore_option_errors = ignore_option_errors
+        self.target_obj: Target = target_obj
+        self.sections = dict(self._section_options(options))
+        self.set_options: list[str] = []
+        self.ensure_discovered = ensure_discovered
+        self._referenced_files = set[str]()
+        """After parsing configurations, this property will enumerate
+        all files referenced by the "file:" directive. Private API for setuptools only.
+        """
+
+    @classmethod
+    def _section_options(
+        cls, options: AllCommandOptions
+    ) -> Iterator[tuple[str, SingleCommandOptions]]:
+        for full_name, value in options.items():
+            pre, _sep, name = full_name.partition(cls.section_prefix)
+            if pre:
+                continue
+            yield name.lstrip('.'), value
+
+    @property
+    def parsers(self):
+        """Metadata item name to parser function mapping."""
+        raise NotImplementedError(
+            f'{self.__class__.__name__} must provide .parsers property'
+        )
+
+    def __setitem__(self, option_name, value) -> None:
+        target_obj = self.target_obj
+
+        # Translate alias into real name.
+        option_name = self.aliases.get(option_name, option_name)
+
+        try:
+            current_value = getattr(target_obj, option_name)
+        except AttributeError as e:
+            raise KeyError(option_name) from e
+
+        if current_value:
+            # Already inhabited. Skipping.
+            return
+
+        try:
+            parsed = self.parsers.get(option_name, lambda x: x)(value)
+        except (Exception,) * self.ignore_option_errors:
+            return
+
+        simple_setter = functools.partial(target_obj.__setattr__, option_name)
+        setter = getattr(target_obj, f"set_{option_name}", simple_setter)
+        setter(parsed)
+
+        self.set_options.append(option_name)
+
+    @classmethod
+    def _parse_list(cls, value, separator=','):
+        """Represents value as a list.
+
+        Value is split either by separator (defaults to comma) or by lines.
+
+        :param value:
+        :param separator: List items separator character.
+        :rtype: list
+        """
+        if isinstance(value, list):  # _get_parser_compound case
+            return value
+
+        if '\n' in value:
+            value = value.splitlines()
+        else:
+            value = value.split(separator)
+
+        return [chunk.strip() for chunk in value if chunk.strip()]
+
+    @classmethod
+    def _parse_dict(cls, value):
+        """Represents value as a dict.
+
+        :param value:
+        :rtype: dict
+        """
+        separator = '='
+        result = {}
+        for line in cls._parse_list(value):
+            key, sep, val = line.partition(separator)
+            if sep != separator:
+                raise OptionError(f"Unable to parse option value to dict: {value}")
+            result[key.strip()] = val.strip()
+
+        return result
+
+    @classmethod
+    def _parse_bool(cls, value):
+        """Represents value as boolean.
+
+        :param value:
+        :rtype: bool
+        """
+        value = value.lower()
+        return value in ('1', 'true', 'yes')
+
+    @classmethod
+    def _exclude_files_parser(cls, key):
+        """Returns a parser function to make sure field inputs
+        are not files.
+
+        Parses a value after getting the key so error messages are
+        more informative.
+
+        :param key:
+        :rtype: callable
+        """
+
+        def parser(value):
+            exclude_directive = 'file:'
+            if value.startswith(exclude_directive):
+                raise ValueError(
+                    f'Only strings are accepted for the {key} field, '
+                    'files are not accepted'
+                )
+            return _static.Str(value)
+
+        return parser
+
+    def _parse_file(self, value, root_dir: StrPath | None):
+        """Represents value as a string, allowing including text
+        from nearest files using `file:` directive.
+
+        Directive is sandboxed and won't reach anything outside
+        directory with setup.py.
+
+        Examples:
+            file: README.rst, CHANGELOG.md, src/file.txt
+
+        :param str value:
+        :rtype: str
+        """
+        include_directive = 'file:'
+
+        if not isinstance(value, str):
+            return value
+
+        if not value.startswith(include_directive):
+            return _static.Str(value)
+
+        spec = value[len(include_directive) :]
+        filepaths = [path.strip() for path in spec.split(',')]
+        self._referenced_files.update(filepaths)
+        # XXX: Is marking as static contents coming from files too optimistic?
+        return _static.Str(expand.read_files(filepaths, root_dir))
+
+    def _parse_attr(self, value, package_dir, root_dir: StrPath):
+        """Represents value as a module attribute.
+
+        Examples:
+            attr: package.attr
+            attr: package.module.attr
+
+        :param str value:
+        :rtype: str
+        """
+        attr_directive = 'attr:'
+        if not value.startswith(attr_directive):
+            return _static.Str(value)
+
+        attr_desc = value.replace(attr_directive, '')
+
+        # Make sure package_dir is populated correctly, so `attr:` directives can work
+        package_dir.update(self.ensure_discovered.package_dir)
+        return expand.read_attr(attr_desc, package_dir, root_dir)
+
+    @classmethod
+    def _get_parser_compound(cls, *parse_methods):
+        """Returns parser function to represents value as a list.
+
+        Parses a value applying given methods one after another.
+
+        :param parse_methods:
+        :rtype: callable
+        """
+
+        def parse(value):
+            parsed = value
+
+            for method in parse_methods:
+                parsed = method(parsed)
+
+            return parsed
+
+        return parse
+
+    @classmethod
+    def _parse_section_to_dict_with_key(cls, section_options, values_parser):
+        """Parses section options into a dictionary.
+
+        Applies a given parser to each option in a section.
+
+        :param dict section_options:
+        :param callable values_parser: function with 2 args corresponding to key, value
+        :rtype: dict
+        """
+        value = {}
+        for key, (_, val) in section_options.items():
+            value[key] = values_parser(key, val)
+        return value
+
+    @classmethod
+    def _parse_section_to_dict(cls, section_options, values_parser=None):
+        """Parses section options into a dictionary.
+
+        Optionally applies a given parser to each value.
+
+        :param dict section_options:
+        :param callable values_parser: function with 1 arg corresponding to option value
+        :rtype: dict
+        """
+        parser = (lambda _, v: values_parser(v)) if values_parser else (lambda _, v: v)
+        return cls._parse_section_to_dict_with_key(section_options, parser)
+
+    def parse_section(self, section_options) -> None:
+        """Parses configuration file section.
+
+        :param dict section_options:
+        """
+        for name, (_, value) in section_options.items():
+            with contextlib.suppress(KeyError):
+                # Keep silent for a new option may appear anytime.
+                self[name] = value
+
+    def parse(self) -> None:
+        """Parses configuration file items from one
+        or more related sections.
+
+        """
+        for section_name, section_options in self.sections.items():
+            method_postfix = ''
+            if section_name:  # [section.option] variant
+                method_postfix = f"_{section_name}"
+
+            section_parser_method: Callable | None = getattr(
+                self,
+                # Dots in section names are translated into dunderscores.
+                f'parse_section{method_postfix}'.replace('.', '__'),
+                None,
+            )
+
+            if section_parser_method is None:
+                raise OptionError(
+                    "Unsupported distribution option section: "
+                    f"[{self.section_prefix}.{section_name}]"
+                )
+
+            section_parser_method(section_options)
+
+    def _deprecated_config_handler(self, func, msg, **kw):
+        """this function will wrap around parameters that are deprecated
+
+        :param msg: deprecation message
+        :param func: function to be wrapped around
+        """
+
+        @wraps(func)
+        def config_handler(*args, **kwargs):
+            kw.setdefault("stacklevel", 2)
+            _DeprecatedConfig.emit("Deprecated config in `setup.cfg`", msg, **kw)
+            return func(*args, **kwargs)
+
+        return config_handler
+
+
+class ConfigMetadataHandler(ConfigHandler["DistributionMetadata"]):
+    section_prefix = 'metadata'
+
+    aliases = {
+        'home_page': 'url',
+        'summary': 'description',
+        'classifier': 'classifiers',
+        'platform': 'platforms',
+    }
+
+    strict_mode = False
+    """We need to keep it loose, to be partially compatible with
+    `pbr` and `d2to1` packages which also uses `metadata` section.
+
+    """
+
+    def __init__(
+        self,
+        target_obj: DistributionMetadata,
+        options: AllCommandOptions,
+        ignore_option_errors: bool,
+        ensure_discovered: expand.EnsurePackagesDiscovered,
+        package_dir: dict | None = None,
+        root_dir: StrPath | None = os.curdir,
+    ) -> None:
+        super().__init__(target_obj, options, ignore_option_errors, ensure_discovered)
+        self.package_dir = package_dir
+        self.root_dir = root_dir
+
+    @property
+    def parsers(self):
+        """Metadata item name to parser function mapping."""
+        parse_list_static = self._get_parser_compound(self._parse_list, _static.List)
+        parse_dict_static = self._get_parser_compound(self._parse_dict, _static.Dict)
+        parse_file = partial(self._parse_file, root_dir=self.root_dir)
+        exclude_files_parser = self._exclude_files_parser
+
+        return {
+            'author': _static.Str,
+            'author_email': _static.Str,
+            'maintainer': _static.Str,
+            'maintainer_email': _static.Str,
+            'platforms': parse_list_static,
+            'keywords': parse_list_static,
+            'provides': parse_list_static,
+            'obsoletes': parse_list_static,
+            'classifiers': self._get_parser_compound(parse_file, parse_list_static),
+            'license': exclude_files_parser('license'),
+            'license_files': parse_list_static,
+            'description': parse_file,
+            'long_description': parse_file,
+            'long_description_content_type': _static.Str,
+            'version': self._parse_version,  # Cannot be marked as dynamic
+            'url': _static.Str,
+            'project_urls': parse_dict_static,
+        }
+
+    def _parse_version(self, value):
+        """Parses `version` option value.
+
+        :param value:
+        :rtype: str
+
+        """
+        version = self._parse_file(value, self.root_dir)
+
+        if version != value:
+            version = version.strip()
+            # Be strict about versions loaded from file because it's easy to
+            # accidentally include newlines and other unintended content
+            try:
+                Version(version)
+            except InvalidVersion as e:
+                raise OptionError(
+                    f'Version loaded from {value} does not '
+                    f'comply with PEP 440: {version}'
+                ) from e
+
+            return version
+
+        return expand.version(self._parse_attr(value, self.package_dir, self.root_dir))
+
+
+class ConfigOptionsHandler(ConfigHandler["Distribution"]):
+    section_prefix = 'options'
+
+    def __init__(
+        self,
+        target_obj: Distribution,
+        options: AllCommandOptions,
+        ignore_option_errors: bool,
+        ensure_discovered: expand.EnsurePackagesDiscovered,
+    ) -> None:
+        super().__init__(target_obj, options, ignore_option_errors, ensure_discovered)
+        self.root_dir = target_obj.src_root
+        self.package_dir: dict[str, str] = {}  # To be filled by `find_packages`
+
+    @classmethod
+    def _parse_list_semicolon(cls, value):
+        return cls._parse_list(value, separator=';')
+
+    def _parse_file_in_root(self, value):
+        return self._parse_file(value, root_dir=self.root_dir)
+
+    def _parse_requirements_list(self, label: str, value: str):
+        # Parse a requirements list, either by reading in a `file:`, or a list.
+        parsed = self._parse_list_semicolon(self._parse_file_in_root(value))
+        _warn_accidental_env_marker_misconfig(label, value, parsed)
+        # Filter it to only include lines that are not comments. `parse_list`
+        # will have stripped each line and filtered out empties.
+        return _static.List(line for line in parsed if not line.startswith("#"))
+        # ^-- Use `_static.List` to mark a non-`Dynamic` Core Metadata
+
+    @property
+    def parsers(self):
+        """Metadata item name to parser function mapping."""
+        parse_list = self._parse_list
+        parse_bool = self._parse_bool
+        parse_cmdclass = self._parse_cmdclass
+
+        return {
+            'zip_safe': parse_bool,
+            'include_package_data': parse_bool,
+            'package_dir': self._parse_dict,
+            'scripts': parse_list,
+            'eager_resources': parse_list,
+            'dependency_links': parse_list,
+            'namespace_packages': self._deprecated_config_handler(
+                parse_list,
+                "The namespace_packages parameter is deprecated, "
+                "consider using implicit namespaces instead (PEP 420).",
+                # TODO: define due date, see setuptools.dist:check_nsp.
+            ),
+            'install_requires': partial(  # Core Metadata
+                self._parse_requirements_list, "install_requires"
+            ),
+            'setup_requires': self._parse_list_semicolon,
+            'packages': self._parse_packages,
+            'entry_points': self._parse_file_in_root,
+            'py_modules': parse_list,
+            'python_requires': _static.SpecifierSet,  # Core Metadata
+            'cmdclass': parse_cmdclass,
+        }
+
+    def _parse_cmdclass(self, value):
+        package_dir = self.ensure_discovered.package_dir
+        return expand.cmdclass(self._parse_dict(value), package_dir, self.root_dir)
+
+    def _parse_packages(self, value):
+        """Parses `packages` option value.
+
+        :param value:
+        :rtype: list
+        """
+        find_directives = ['find:', 'find_namespace:']
+        trimmed_value = value.strip()
+
+        if trimmed_value not in find_directives:
+            return self._parse_list(value)
+
+        # Read function arguments from a dedicated section.
+        find_kwargs = self.parse_section_packages__find(
+            self.sections.get('packages.find', {})
+        )
+
+        find_kwargs.update(
+            namespaces=(trimmed_value == find_directives[1]),
+            root_dir=self.root_dir,
+            fill_package_dir=self.package_dir,
+        )
+
+        return expand.find_packages(**find_kwargs)
+
+    def parse_section_packages__find(self, section_options):
+        """Parses `packages.find` configuration file section.
+
+        To be used in conjunction with _parse_packages().
+
+        :param dict section_options:
+        """
+        section_data = self._parse_section_to_dict(section_options, self._parse_list)
+
+        valid_keys = ['where', 'include', 'exclude']
+        find_kwargs = {k: v for k, v in section_data.items() if k in valid_keys and v}
+
+        where = find_kwargs.get('where')
+        if where is not None:
+            find_kwargs['where'] = where[0]  # cast list to single val
+
+        return find_kwargs
+
+    def parse_section_entry_points(self, section_options) -> None:
+        """Parses `entry_points` configuration file section.
+
+        :param dict section_options:
+        """
+        parsed = self._parse_section_to_dict(section_options, self._parse_list)
+        self['entry_points'] = parsed
+
+    def _parse_package_data(self, section_options):
+        package_data = self._parse_section_to_dict(section_options, self._parse_list)
+        return expand.canonic_package_data(package_data)
+
+    def parse_section_package_data(self, section_options) -> None:
+        """Parses `package_data` configuration file section.
+
+        :param dict section_options:
+        """
+        self['package_data'] = self._parse_package_data(section_options)
+
+    def parse_section_exclude_package_data(self, section_options) -> None:
+        """Parses `exclude_package_data` configuration file section.
+
+        :param dict section_options:
+        """
+        self['exclude_package_data'] = self._parse_package_data(section_options)
+
+    def parse_section_extras_require(self, section_options) -> None:  # Core Metadata
+        """Parses `extras_require` configuration file section.
+
+        :param dict section_options:
+        """
+        parsed = self._parse_section_to_dict_with_key(
+            section_options,
+            lambda k, v: self._parse_requirements_list(f"extras_require[{k}]", v),
+        )
+
+        self['extras_require'] = _static.Dict(parsed)
+        # ^-- Use `_static.Dict` to mark a non-`Dynamic` Core Metadata
+
+    def parse_section_data_files(self, section_options) -> None:
+        """Parses `data_files` configuration file section.
+
+        :param dict section_options:
+        """
+        parsed = self._parse_section_to_dict(section_options, self._parse_list)
+        self['data_files'] = expand.canonic_data_files(parsed, self.root_dir)
+
+
+class _AmbiguousMarker(SetuptoolsDeprecationWarning):
+    _SUMMARY = "Ambiguous requirement marker."
+    _DETAILS = """
+    One of the parsed requirements in `{field}` looks like a valid environment marker:
+
+        {req!r}
+
+    Please make sure that the configuration file is correct.
+    You can use dangling lines to avoid this problem.
+    """
+    _SEE_DOCS = "userguide/declarative_config.html#opt-2"
+    # TODO: should we include due_date here? Initially introduced in 6 Aug 2022.
+    # Does this make sense with latest version of packaging?
+
+    @classmethod
+    def message(cls, **kw):
+        docs = f"https://setuptools.pypa.io/en/latest/{cls._SEE_DOCS}"
+        return cls._format(cls._SUMMARY, cls._DETAILS, see_url=docs, format_args=kw)
+
+
+class _DeprecatedConfig(SetuptoolsDeprecationWarning):
+    _SEE_DOCS = "userguide/declarative_config.html"
diff --git a/setuptools/config/setuptools.schema.json b/setuptools/config/setuptools.schema.json
new file mode 100644
index 0000000000..ec887b3573
--- /dev/null
+++ b/setuptools/config/setuptools.schema.json
@@ -0,0 +1,433 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+
+  "$id": "https://setuptools.pypa.io/en/latest/userguide/pyproject_config.html",
+  "title": "``tool.setuptools`` table",
+  "$$description": [
+    "``setuptools``-specific configurations that can be set by users that require",
+    "customization.",
+    "These configurations are completely optional and probably can be skipped when",
+    "creating simple packages. They are equivalent to some of the `Keywords",
+    "`_",
+    "used by the ``setup.py`` file, and can be set via the ``tool.setuptools`` table.",
+    "It considers only ``setuptools`` `parameters",
+    "`_",
+    "that are not covered by :pep:`621`; and intentionally excludes ``dependency_links``",
+    "and ``setup_requires`` (incompatible with modern workflows/standards)."
+  ],
+
+  "type": "object",
+  "additionalProperties": false,
+  "properties": {
+    "platforms": {
+      "type": "array",
+      "items": {"type": "string"}
+    },
+    "provides": {
+      "$$description": [
+        "Package and virtual package names contained within this package",
+        "**(not supported by pip)**"
+      ],
+      "type": "array",
+      "items": {"type": "string", "format": "pep508-identifier"}
+    },
+    "obsoletes": {
+      "$$description": [
+        "Packages which this package renders obsolete",
+        "**(not supported by pip)**"
+      ],
+      "type": "array",
+      "items": {"type": "string", "format": "pep508-identifier"}
+    },
+    "zip-safe": {
+      "$$description": [
+        "Whether the project can be safely installed and run from a zip file.",
+        "**OBSOLETE**: only relevant for ``pkg_resources``, ``easy_install`` and",
+        "``setup.py install`` in the context of ``eggs`` (**DEPRECATED**)."
+      ],
+      "type": "boolean"
+    },
+    "script-files": {
+      "$$description": [
+        "Legacy way of defining scripts (entry-points are preferred).",
+        "Equivalent to the ``script`` keyword in ``setup.py``",
+        "(it was renamed to avoid confusion with entry-point based ``project.scripts``",
+        "defined in :pep:`621`).",
+        "**DISCOURAGED**: generic script wrappers are tricky and may not work properly.",
+        "Whenever possible, please use ``project.scripts`` instead."
+      ],
+      "type": "array",
+      "items": {"type": "string"},
+      "$comment": "TODO: is this field deprecated/should be removed?"
+    },
+    "eager-resources": {
+      "$$description": [
+        "Resources that should be extracted together, if any of them is needed,",
+        "or if any C extensions included in the project are imported.",
+        "**OBSOLETE**: only relevant for ``pkg_resources``, ``easy_install`` and",
+        "``setup.py install`` in the context of ``eggs`` (**DEPRECATED**)."
+      ],
+      "type": "array",
+      "items": {"type": "string"}
+    },
+    "packages": {
+      "$$description": [
+        "Packages that should be included in the distribution.",
+        "It can be given either as a list of package identifiers",
+        "or as a ``dict``-like structure with a single key ``find``",
+        "which corresponds to a dynamic call to",
+        "``setuptools.config.expand.find_packages`` function.",
+        "The ``find`` key is associated with a nested ``dict``-like structure that can",
+        "contain ``where``, ``include``, ``exclude`` and ``namespaces`` keys,",
+        "mimicking the keyword arguments of the associated function."
+      ],
+      "oneOf": [
+        {
+          "title": "Array of Python package identifiers",
+          "type": "array",
+          "items": {"$ref": "#/definitions/package-name"}
+        },
+        {"$ref": "#/definitions/find-directive"}
+      ]
+    },
+    "package-dir": {
+      "$$description": [
+        ":class:`dict`-like structure mapping from package names to directories where their",
+        "code can be found.",
+        "The empty string (as key) means that all packages are contained inside",
+        "the given directory will be included in the distribution."
+      ],
+      "type": "object",
+      "additionalProperties": false,
+      "propertyNames": {
+        "anyOf": [{"const": ""}, {"$ref": "#/definitions/package-name"}]
+      },
+      "patternProperties": {
+        "^.*$": {"type": "string" }
+      }
+    },
+    "package-data": {
+      "$$description": [
+        "Mapping from package names to lists of glob patterns.",
+        "Usually this option is not needed when using ``include-package-data = true``",
+        "For more information on how to include data files, check ``setuptools`` `docs",
+        "`_."
+      ],
+      "type": "object",
+      "additionalProperties": false,
+      "propertyNames": {
+        "anyOf": [{"type": "string", "format": "python-module-name"}, {"const": "*"}]
+      },
+      "patternProperties": {
+        "^.*$": {"type": "array", "items": {"type": "string"}}
+      }
+    },
+    "include-package-data": {
+      "$$description": [
+        "Automatically include any data files inside the package directories",
+        "that are specified by ``MANIFEST.in``",
+        "For more information on how to include data files, check ``setuptools`` `docs",
+        "`_."
+      ],
+      "type": "boolean"
+    },
+    "exclude-package-data": {
+      "$$description": [
+        "Mapping from package names to lists of glob patterns that should be excluded",
+        "For more information on how to include data files, check ``setuptools`` `docs",
+        "`_."
+      ],
+      "type": "object",
+      "additionalProperties": false,
+      "propertyNames": {
+        "anyOf": [{"type": "string", "format": "python-module-name"}, {"const": "*"}]
+      },
+      "patternProperties": {
+          "^.*$": {"type": "array", "items": {"type": "string"}}
+      }
+    },
+    "namespace-packages": {
+      "type": "array",
+      "items": {"type": "string", "format": "python-module-name-relaxed"},
+      "$comment": "https://setuptools.pypa.io/en/latest/userguide/package_discovery.html",
+      "description": "**DEPRECATED**: use implicit namespaces instead (:pep:`420`)."
+    },
+    "py-modules": {
+      "description": "Modules that setuptools will manipulate",
+      "type": "array",
+      "items": {"type": "string", "format": "python-module-name-relaxed"},
+      "$comment": "TODO: clarify the relationship with ``packages``"
+    },
+    "ext-modules": {
+      "description": "Extension modules to be compiled by setuptools",
+      "type": "array",
+      "items": {"$ref": "#/definitions/ext-module"}
+    },
+    "data-files": {
+      "$$description": [
+        "``dict``-like structure where each key represents a directory and",
+        "the value is a list of glob patterns that should be installed in them.",
+        "**DISCOURAGED**: please notice this might not work as expected with wheels.",
+        "Whenever possible, consider using data files inside the package directories",
+        "(or create a new namespace package that only contains data files).",
+        "See `data files support",
+        "`_."
+      ],
+      "type": "object",
+      "patternProperties": {
+          "^.*$": {"type": "array", "items": {"type": "string"}}
+      }
+    },
+    "cmdclass": {
+      "$$description": [
+        "Mapping of distutils-style command names to ``setuptools.Command`` subclasses",
+        "which in turn should be represented by strings with a qualified class name",
+        "(i.e., \"dotted\" form with module), e.g.::\n\n",
+        "    cmdclass = {mycmd = \"pkg.subpkg.module.CommandClass\"}\n\n",
+        "The command class should be a directly defined at the top-level of the",
+        "containing module (no class nesting)."
+      ],
+      "type": "object",
+      "patternProperties": {
+          "^.*$": {"type": "string", "format": "python-qualified-identifier"}
+      }
+    },
+    "license-files": {
+      "type": "array",
+      "items": {"type": "string"},
+      "$$description": [
+        "**PROVISIONAL**: list of glob patterns for all license files being distributed.",
+        "(likely to become standard with :pep:`639`).",
+        "By default: ``['LICEN[CS]E*', 'COPYING*', 'NOTICE*', 'AUTHORS*']``"
+      ],
+      "$comment": "TODO: revise if PEP 639 is accepted. Probably ``project.license-files``?"
+    },
+    "dynamic": {
+      "type": "object",
+      "description": "Instructions for loading :pep:`621`-related metadata dynamically",
+      "additionalProperties": false,
+      "properties": {
+        "version": {
+          "$$description": [
+            "A version dynamically loaded via either the ``attr:`` or ``file:``",
+            "directives. Please make sure the given file or attribute respects :pep:`440`.",
+            "Also ensure to set ``project.dynamic`` accordingly."
+          ],
+          "oneOf": [
+            {"$ref": "#/definitions/attr-directive"},
+            {"$ref": "#/definitions/file-directive"}
+          ]
+        },
+        "classifiers": {"$ref": "#/definitions/file-directive"},
+        "description": {"$ref": "#/definitions/file-directive"},
+        "entry-points": {"$ref": "#/definitions/file-directive"},
+        "dependencies": {"$ref": "#/definitions/file-directive-for-dependencies"},
+        "optional-dependencies": {
+          "type": "object",
+          "propertyNames": {"type": "string", "format": "pep508-identifier"},
+          "additionalProperties": false,
+          "patternProperties": {
+            ".+": {"$ref": "#/definitions/file-directive-for-dependencies"}
+          }
+        },
+        "readme": {
+          "type": "object",
+          "anyOf": [
+            {"$ref": "#/definitions/file-directive"},
+            {
+              "type": "object",
+              "properties": {
+                "content-type": {"type": "string"},
+                "file": { "$ref": "#/definitions/file-directive/properties/file" }
+              },
+              "additionalProperties": false}
+          ],
+          "required": ["file"]
+        }
+      }
+    }
+  },
+
+  "definitions": {
+    "package-name": {
+      "$id": "#/definitions/package-name",
+      "title": "Valid package name",
+      "description": "Valid package name (importable or :pep:`561`).",
+      "type": "string",
+      "anyOf": [
+        {"type": "string", "format": "python-module-name-relaxed"},
+        {"type": "string", "format": "pep561-stub-name"}
+      ]
+    },
+    "ext-module": {
+      "$id": "#/definitions/ext-module",
+      "title": "Extension module",
+      "description": "Parameters to construct a :class:`setuptools.Extension` object",
+      "type": "object",
+      "required": ["name", "sources"],
+      "additionalProperties": false,
+      "properties": {
+        "name": {
+          "type": "string",
+          "format": "python-module-name-relaxed"
+        },
+        "sources": {
+          "type": "array",
+          "items": {"type": "string"}
+        },
+        "include-dirs":{
+          "type": "array",
+          "items": {"type": "string"}
+        },
+        "define-macros": {
+          "type": "array",
+          "items": {
+            "type": "array",
+            "items": [
+              {"description": "macro name", "type": "string"},
+              {"description": "macro value", "oneOf": [{"type": "string"}, {"type": "null"}]}
+            ],
+            "additionalItems": false
+          }
+        },
+        "undef-macros": {
+          "type": "array",
+          "items": {"type": "string"}
+        },
+        "library-dirs": {
+          "type": "array",
+          "items": {"type": "string"}
+        },
+        "libraries": {
+          "type": "array",
+          "items": {"type": "string"}
+        },
+        "runtime-library-dirs": {
+          "type": "array",
+          "items": {"type": "string"}
+        },
+        "extra-objects": {
+          "type": "array",
+          "items": {"type": "string"}
+        },
+        "extra-compile-args": {
+          "type": "array",
+          "items": {"type": "string"}
+        },
+        "extra-link-args": {
+          "type": "array",
+          "items": {"type": "string"}
+        },
+        "export-symbols": {
+          "type": "array",
+          "items": {"type": "string"}
+        },
+        "swig-opts": {
+          "type": "array",
+          "items": {"type": "string"}
+        },
+        "depends": {
+          "type": "array",
+          "items": {"type": "string"}
+        },
+        "language": {"type": "string"},
+        "optional": {"type": "boolean"},
+        "py-limited-api": {"type": "boolean"}
+      }
+    },
+    "file-directive": {
+      "$id": "#/definitions/file-directive",
+      "title": "'file:' directive",
+      "description":
+        "Value is read from a file (or list of files and then concatenated)",
+      "type": "object",
+      "additionalProperties": false,
+      "properties": {
+        "file": {
+          "oneOf": [
+            {"type": "string"},
+            {"type": "array", "items": {"type": "string"}}
+          ]
+        }
+      },
+      "required": ["file"]
+    },
+    "file-directive-for-dependencies": {
+      "title": "'file:' directive for dependencies",
+      "allOf": [
+        {
+          "$$description": [
+            "**BETA**: subset of the ``requirements.txt`` format",
+            "without ``pip`` flags and options",
+            "(one :pep:`508`-compliant string per line,",
+            "lines that are blank or start with ``#`` are excluded).",
+            "See `dynamic metadata",
+            "`_."
+          ]
+        },
+        {"$ref": "#/definitions/file-directive"}
+      ]
+    },
+    "attr-directive": {
+      "title": "'attr:' directive",
+      "$id": "#/definitions/attr-directive",
+      "$$description": [
+        "Value is read from a module attribute. Supports callables and iterables;",
+        "unsupported types are cast via ``str()``"
+      ],
+      "type": "object",
+      "additionalProperties": false,
+      "properties": {
+        "attr": {"type": "string", "format": "python-qualified-identifier"}
+      },
+      "required": ["attr"]
+    },
+    "find-directive": {
+      "$id": "#/definitions/find-directive",
+      "title": "'find:' directive",
+      "type": "object",
+      "additionalProperties": false,
+      "properties": {
+        "find": {
+          "type": "object",
+          "$$description": [
+            "Dynamic `package discovery",
+            "`_."
+          ],
+          "additionalProperties": false,
+          "properties": {
+            "where": {
+              "description":
+                "Directories to be searched for packages (Unix-style relative path)",
+              "type": "array",
+              "items": {"type": "string"}
+            },
+            "exclude": {
+              "type": "array",
+              "$$description": [
+                "Exclude packages that match the values listed in this field.",
+                "Can container shell-style wildcards (e.g. ``'pkg.*'``)"
+              ],
+              "items": {"type": "string"}
+            },
+            "include": {
+              "type": "array",
+              "$$description": [
+                "Restrict the found packages to just the ones listed in this field.",
+                "Can container shell-style wildcards (e.g. ``'pkg.*'``)"
+              ],
+              "items": {"type": "string"}
+            },
+            "namespaces": {
+              "type": "boolean",
+              "$$description": [
+                "When ``True``, directories without a ``__init__.py`` file will also",
+                "be scanned for :pep:`420`-style implicit namespaces"
+              ]
+            }
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/setuptools/depends.py b/setuptools/depends.py
index 4b7b343760..e5223b7956 100644
--- a/setuptools/depends.py
+++ b/setuptools/depends.py
@@ -1,21 +1,36 @@
-from __future__ import generators
-import sys, imp, marshal
-from imp import PKG_DIRECTORY, PY_COMPILED, PY_SOURCE, PY_FROZEN
-from distutils.version import StrictVersion, LooseVersion
+from __future__ import annotations
+
+import contextlib
+import dis
+import marshal
+import sys
+from types import CodeType
+from typing import Any, Literal, TypeVar
+
+from packaging.version import Version
+
+from . import _imp
+from ._imp import PY_COMPILED, PY_FROZEN, PY_SOURCE, find_module
+
+_T = TypeVar("_T")
+
+__all__ = ['Require', 'find_module']
 
-__all__ = [
-    'Require', 'find_module', 'get_module_constant', 'extract_constant'
-]
 
 class Require:
     """A prerequisite to building or installing a distribution"""
 
-    def __init__(self,name,requested_version,module,homepage='',
-        attribute=None,format=None
-    ):
-
+    def __init__(
+        self,
+        name,
+        requested_version,
+        module,
+        homepage: str = '',
+        attribute=None,
+        format=None,
+    ) -> None:
         if format is None and requested_version is not None:
-            format = StrictVersion
+            format = Version
 
         if format is not None:
             requested_version = format(requested_version)
@@ -25,22 +40,24 @@ def __init__(self,name,requested_version,module,homepage='',
         self.__dict__.update(locals())
         del self.self
 
-
     def full_name(self):
         """Return full package/distribution name, w/version"""
         if self.requested_version is not None:
-            return '%s-%s' % (self.name,self.requested_version)
+            return f'{self.name}-{self.requested_version}'
         return self.name
 
-
-    def version_ok(self,version):
+    def version_ok(self, version):
         """Is 'version' sufficiently up-to-date?"""
-        return self.attribute is None or self.format is None or \
-            str(version)<>"unknown" and version >= self.requested_version
-
-
-    def get_version(self, paths=None, default="unknown"):
-
+        return (
+            self.attribute is None
+            or self.format is None
+            or str(version) != "unknown"
+            and self.format(version) >= self.requested_version
+        )
+
+    def get_version(
+        self, paths=None, default: _T | Literal["unknown"] = "unknown"
+    ) -> _T | Literal["unknown"] | None | Any:
         """Get version number of installed module, 'None', or 'default'
 
         Search 'paths' for module.  If not found, return 'None'.  If found,
@@ -53,194 +70,116 @@ def get_version(self, paths=None, default="unknown"):
 
         if self.attribute is None:
             try:
-                f,p,i = find_module(self.module,paths)
-                if f: f.close()
-                return default
+                f, _p, _i = find_module(self.module, paths)
             except ImportError:
                 return None
+            if f:
+                f.close()
+            return default
 
-        v = get_module_constant(self.module,self.attribute,default,paths)
+        v = get_module_constant(self.module, self.attribute, default, paths)
 
         if v is not None and v is not default and self.format is not None:
             return self.format(v)
 
         return v
 
-
-    def is_present(self,paths=None):
+    def is_present(self, paths=None):
         """Return true if dependency is present on 'paths'"""
         return self.get_version(paths) is not None
 
-
-    def is_current(self,paths=None):
+    def is_current(self, paths=None):
         """Return true if dependency is present and up-to-date on 'paths'"""
         version = self.get_version(paths)
         if version is None:
             return False
-        return self.version_ok(version)
-
-
-def _iter_code(code):
-
-    """Yield '(op,arg)' pair for each operation in code object 'code'"""
-
-    from array import array
-    from dis import HAVE_ARGUMENT, EXTENDED_ARG
-
-    bytes = array('b',code.co_code)
-    eof = len(code.co_code)
-
-    ptr = 0
-    extended_arg = 0
-
-    while ptr=HAVE_ARGUMENT:
-
-            arg = bytes[ptr+1] + bytes[ptr+2]*256 + extended_arg
-            ptr += 3
-
-            if op==EXTENDED_ARG:
-                extended_arg = arg * 65536L
-                continue
-
-        else:
-            arg = None
-            ptr += 1
-
-        yield op,arg
-
-
-
-
-
-
-
-
-
-
-def find_module(module, paths=None):
-    """Just like 'imp.find_module()', but with package support"""
-
-    parts = module.split('.')
-
-    while parts:
-        part = parts.pop(0)
-        f, path, (suffix,mode,kind) = info = imp.find_module(part, paths)
-
-        if kind==PKG_DIRECTORY:
-            parts = parts or ['__init__']
-            paths = [path]
-
-        elif parts:
-            raise ImportError("Can't find %r in %s" % (parts,module))
-
-    return info
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-def get_module_constant(module, symbol, default=-1, paths=None):
-
-    """Find 'module' by searching 'paths', and extract 'symbol'
-
-    Return 'None' if 'module' does not exist on 'paths', or it does not define
-    'symbol'.  If the module defines 'symbol' as a constant, return the
-    constant.  Otherwise, return 'default'."""
-
-    try:
-        f, path, (suffix,mode,kind) = find_module(module,paths)
-    except ImportError:
-        # Module doesn't exist
-        return None
-
-    try:
-        if kind==PY_COMPILED:
-            f.read(8)   # skip magic & date
-            code = marshal.load(f)
-        elif kind==PY_FROZEN:
-            code = imp.get_frozen_object(module)
-        elif kind==PY_SOURCE:
-            code = compile(f.read(), path, 'exec')
-        else:
-            # Not something we can parse; we'll have to import it.  :(
-            if module not in sys.modules:
-                imp.load_module(module,f,path,(suffix,mode,kind))
-            return getattr(sys.modules[module],symbol,None)
-
-    finally:
-        if f:
-            f.close()
-
-    return extract_constant(code,symbol,default)
-
-
-
-
-
+        return self.version_ok(str(version))
+
+
+def maybe_close(f):
+    @contextlib.contextmanager
+    def empty():
+        yield
+        return
+
+    if not f:
+        return empty()
+
+    return contextlib.closing(f)
+
+
+# Some objects are not available on some platforms.
+# XXX it'd be better to test assertions about bytecode instead.
+if not sys.platform.startswith('java') and sys.platform != 'cli':
+
+    def get_module_constant(
+        module, symbol, default: _T | int = -1, paths=None
+    ) -> _T | int | None | Any:
+        """Find 'module' by searching 'paths', and extract 'symbol'
+
+        Return 'None' if 'module' does not exist on 'paths', or it does not define
+        'symbol'.  If the module defines 'symbol' as a constant, return the
+        constant.  Otherwise, return 'default'."""
+
+        try:
+            f, path, (_suffix, _mode, kind) = info = find_module(module, paths)
+        except ImportError:
+            # Module doesn't exist
+            return None
+
+        with maybe_close(f):
+            if kind == PY_COMPILED:
+                f.read(8)  # skip magic & date
+                code = marshal.load(f)
+            elif kind == PY_FROZEN:
+                code = _imp.get_frozen_object(module, paths)
+            elif kind == PY_SOURCE:
+                code = compile(f.read(), path, 'exec')
+            else:
+                # Not something we can parse; we'll have to import it.  :(
+                imported = _imp.get_module(module, paths, info)
+                return getattr(imported, symbol, None)
+
+        return extract_constant(code, symbol, default)
+
+    def extract_constant(
+        code: CodeType, symbol: str, default: _T | int = -1
+    ) -> _T | int | None | Any:
+        """Extract the constant value of 'symbol' from 'code'
+
+        If the name 'symbol' is bound to a constant value by the Python code
+        object 'code', return that value.  If 'symbol' is bound to an expression,
+        return 'default'.  Otherwise, return 'None'.
+
+        Return value is based on the first assignment to 'symbol'.  'symbol' must
+        be a global, or at least a non-"fast" local in the code block.  That is,
+        only 'STORE_NAME' and 'STORE_GLOBAL' opcodes are checked, and 'symbol'
+        must be present in 'code.co_names'.
+        """
+        if symbol not in code.co_names:
+            # name's not there, can't possibly be an assignment
+            return None
 
+        name_idx = list(code.co_names).index(symbol)
 
+        STORE_NAME = dis.opmap['STORE_NAME']
+        STORE_GLOBAL = dis.opmap['STORE_GLOBAL']
+        LOAD_CONST = dis.opmap['LOAD_CONST']
 
-def extract_constant(code,symbol,default=-1):
-    """Extract the constant value of 'symbol' from 'code'
+        const = default
 
-    If the name 'symbol' is bound to a constant value by the Python code
-    object 'code', return that value.  If 'symbol' is bound to an expression,
-    return 'default'.  Otherwise, return 'None'.
+        for byte_code in dis.Bytecode(code):
+            op = byte_code.opcode
+            arg = byte_code.arg
 
-    Return value is based on the first assignment to 'symbol'.  'symbol' must
-    be a global, or at least a non-"fast" local in the code block.  That is,
-    only 'STORE_NAME' and 'STORE_GLOBAL' opcodes are checked, and 'symbol'
-    must be present in 'code.co_names'.
-    """
+            if op == LOAD_CONST:
+                assert arg is not None
+                const = code.co_consts[arg]
+            elif arg == name_idx and (op == STORE_NAME or op == STORE_GLOBAL):
+                return const
+            else:
+                const = default
 
-    if symbol not in code.co_names:
-        # name's not there, can't possibly be an assigment
         return None
 
-    name_idx = list(code.co_names).index(symbol)
-
-    STORE_NAME = 90
-    STORE_GLOBAL = 97
-    LOAD_CONST = 100
-
-    const = default
-
-    for op, arg in _iter_code(code):
-
-        if op==LOAD_CONST:
-            const = code.co_consts[arg]
-        elif arg==name_idx and (op==STORE_NAME or op==STORE_GLOBAL):
-            return const
-        else:
-            const = default
-            
-if sys.platform.startswith('java') or sys.platform == 'cli':
-    # XXX it'd be better to test assertions about bytecode instead...
-    del extract_constant, get_module_constant
-    __all__.remove('extract_constant')
-    __all__.remove('get_module_constant')
-
-
+    __all__ += ['get_module_constant', 'extract_constant']
diff --git a/setuptools/discovery.py b/setuptools/discovery.py
new file mode 100644
index 0000000000..c888399185
--- /dev/null
+++ b/setuptools/discovery.py
@@ -0,0 +1,614 @@
+"""Automatic discovery of Python modules and packages (for inclusion in the
+distribution) and other config values.
+
+For the purposes of this module, the following nomenclature is used:
+
+- "src-layout": a directory representing a Python project that contains a "src"
+  folder. Everything under the "src" folder is meant to be included in the
+  distribution when packaging the project. Example::
+
+    .
+    ├── tox.ini
+    ├── pyproject.toml
+    └── src/
+        └── mypkg/
+            ├── __init__.py
+            ├── mymodule.py
+            └── my_data_file.txt
+
+- "flat-layout": a Python project that does not use "src-layout" but instead
+  have a directory under the project root for each package::
+
+    .
+    ├── tox.ini
+    ├── pyproject.toml
+    └── mypkg/
+        ├── __init__.py
+        ├── mymodule.py
+        └── my_data_file.txt
+
+- "single-module": a project that contains a single Python script direct under
+  the project root (no directory used)::
+
+    .
+    ├── tox.ini
+    ├── pyproject.toml
+    └── mymodule.py
+
+"""
+
+from __future__ import annotations
+
+import itertools
+import os
+from collections.abc import Iterable, Iterator, Mapping
+from fnmatch import fnmatchcase
+from glob import glob
+from pathlib import Path
+from typing import TYPE_CHECKING, ClassVar
+
+import _distutils_hack.override  # noqa: F401
+
+from ._path import StrPath
+
+from distutils import log
+from distutils.util import convert_path
+
+if TYPE_CHECKING:
+    from setuptools import Distribution
+
+chain_iter = itertools.chain.from_iterable
+
+
+def _valid_name(path: StrPath) -> bool:
+    # Ignore invalid names that cannot be imported directly
+    return os.path.basename(path).isidentifier()
+
+
+class _Filter:
+    """
+    Given a list of patterns, create a callable that will be true only if
+    the input matches at least one of the patterns.
+    """
+
+    def __init__(self, *patterns: str) -> None:
+        self._patterns = dict.fromkeys(patterns)
+
+    def __call__(self, item: str) -> bool:
+        return any(fnmatchcase(item, pat) for pat in self._patterns)
+
+    def __contains__(self, item: str) -> bool:
+        return item in self._patterns
+
+
+class _Finder:
+    """Base class that exposes functionality for module/package finders"""
+
+    ALWAYS_EXCLUDE: ClassVar[tuple[str, ...]] = ()
+    DEFAULT_EXCLUDE: ClassVar[tuple[str, ...]] = ()
+
+    @classmethod
+    def find(
+        cls,
+        where: StrPath = '.',
+        exclude: Iterable[str] = (),
+        include: Iterable[str] = ('*',),
+    ) -> list[str]:
+        """Return a list of all Python items (packages or modules, depending on
+        the finder implementation) found within directory 'where'.
+
+        'where' is the root directory which will be searched.
+        It should be supplied as a "cross-platform" (i.e. URL-style) path;
+        it will be converted to the appropriate local path syntax.
+
+        'exclude' is a sequence of names to exclude; '*' can be used
+        as a wildcard in the names.
+        When finding packages, 'foo.*' will exclude all subpackages of 'foo'
+        (but not 'foo' itself).
+
+        'include' is a sequence of names to include.
+        If it's specified, only the named items will be included.
+        If it's not specified, all found items will be included.
+        'include' can contain shell style wildcard patterns just like
+        'exclude'.
+        """
+
+        exclude = exclude or cls.DEFAULT_EXCLUDE
+        return list(
+            cls._find_iter(
+                convert_path(str(where)),
+                _Filter(*cls.ALWAYS_EXCLUDE, *exclude),
+                _Filter(*include),
+            )
+        )
+
+    @classmethod
+    def _find_iter(
+        cls, where: StrPath, exclude: _Filter, include: _Filter
+    ) -> Iterator[str]:
+        raise NotImplementedError
+
+
+class PackageFinder(_Finder):
+    """
+    Generate a list of all Python packages found within a directory
+    """
+
+    ALWAYS_EXCLUDE = ("ez_setup", "*__pycache__")
+
+    @classmethod
+    def _find_iter(
+        cls, where: StrPath, exclude: _Filter, include: _Filter
+    ) -> Iterator[str]:
+        """
+        All the packages found in 'where' that pass the 'include' filter, but
+        not the 'exclude' filter.
+        """
+        for root, dirs, files in os.walk(str(where), followlinks=True):
+            # Copy dirs to iterate over it, then empty dirs.
+            all_dirs = dirs[:]
+            dirs[:] = []
+
+            for dir in all_dirs:
+                full_path = os.path.join(root, dir)
+                rel_path = os.path.relpath(full_path, where)
+                package = rel_path.replace(os.path.sep, '.')
+
+                # Skip directory trees that are not valid packages
+                if '.' in dir or not cls._looks_like_package(full_path, package):
+                    continue
+
+                # Should this package be included?
+                if include(package) and not exclude(package):
+                    yield package
+
+                # Early pruning if there is nothing else to be scanned
+                if f"{package}*" in exclude or f"{package}.*" in exclude:
+                    continue
+
+                # Keep searching subdirectories, as there may be more packages
+                # down there, even if the parent was excluded.
+                dirs.append(dir)
+
+    @staticmethod
+    def _looks_like_package(path: StrPath, _package_name: str) -> bool:
+        """Does a directory look like a package?"""
+        return os.path.isfile(os.path.join(path, '__init__.py'))
+
+
+class PEP420PackageFinder(PackageFinder):
+    @staticmethod
+    def _looks_like_package(_path: StrPath, _package_name: str) -> bool:
+        return True
+
+
+class ModuleFinder(_Finder):
+    """Find isolated Python modules.
+    This function will **not** recurse subdirectories.
+    """
+
+    @classmethod
+    def _find_iter(
+        cls, where: StrPath, exclude: _Filter, include: _Filter
+    ) -> Iterator[str]:
+        for file in glob(os.path.join(where, "*.py")):
+            module, _ext = os.path.splitext(os.path.basename(file))
+
+            if not cls._looks_like_module(module):
+                continue
+
+            if include(module) and not exclude(module):
+                yield module
+
+    _looks_like_module = staticmethod(_valid_name)
+
+
+# We have to be extra careful in the case of flat layout to not include files
+# and directories not meant for distribution (e.g. tool-related)
+
+
+class FlatLayoutPackageFinder(PEP420PackageFinder):
+    _EXCLUDE = (
+        "ci",
+        "bin",
+        "debian",
+        "doc",
+        "docs",
+        "documentation",
+        "manpages",
+        "news",
+        "newsfragments",
+        "changelog",
+        "test",
+        "tests",
+        "unit_test",
+        "unit_tests",
+        "example",
+        "examples",
+        "scripts",
+        "tools",
+        "util",
+        "utils",
+        "python",
+        "build",
+        "dist",
+        "venv",
+        "env",
+        "requirements",
+        # ---- Task runners / Build tools ----
+        "tasks",  # invoke
+        "fabfile",  # fabric
+        "site_scons",  # SCons
+        # ---- Other tools ----
+        "benchmark",
+        "benchmarks",
+        "exercise",
+        "exercises",
+        "htmlcov",  # Coverage.py
+        # ---- Hidden directories/Private packages ----
+        "[._]*",
+    )
+
+    DEFAULT_EXCLUDE = tuple(chain_iter((p, f"{p}.*") for p in _EXCLUDE))
+    """Reserved package names"""
+
+    @staticmethod
+    def _looks_like_package(_path: StrPath, package_name: str) -> bool:
+        names = package_name.split('.')
+        # Consider PEP 561
+        root_pkg_is_valid = names[0].isidentifier() or names[0].endswith("-stubs")
+        return root_pkg_is_valid and all(name.isidentifier() for name in names[1:])
+
+
+class FlatLayoutModuleFinder(ModuleFinder):
+    DEFAULT_EXCLUDE = (
+        "setup",
+        "conftest",
+        "test",
+        "tests",
+        "example",
+        "examples",
+        "build",
+        # ---- Task runners ----
+        "toxfile",
+        "noxfile",
+        "pavement",
+        "dodo",
+        "tasks",
+        "fabfile",
+        # ---- Other tools ----
+        "[Ss][Cc]onstruct",  # SCons
+        "conanfile",  # Connan: C/C++ build tool
+        "manage",  # Django
+        "benchmark",
+        "benchmarks",
+        "exercise",
+        "exercises",
+        # ---- Hidden files/Private modules ----
+        "[._]*",
+    )
+    """Reserved top-level module names"""
+
+
+def _find_packages_within(root_pkg: str, pkg_dir: StrPath) -> list[str]:
+    nested = PEP420PackageFinder.find(pkg_dir)
+    return [root_pkg] + [".".join((root_pkg, n)) for n in nested]
+
+
+class ConfigDiscovery:
+    """Fill-in metadata and options that can be automatically derived
+    (from other metadata/options, the file system or conventions)
+    """
+
+    def __init__(self, distribution: Distribution) -> None:
+        self.dist = distribution
+        self._called = False
+        self._disabled = False
+        self._skip_ext_modules = False
+
+    def _disable(self):
+        """Internal API to disable automatic discovery"""
+        self._disabled = True
+
+    def _ignore_ext_modules(self):
+        """Internal API to disregard ext_modules.
+
+        Normally auto-discovery would not be triggered if ``ext_modules`` are set
+        (this is done for backward compatibility with existing packages relying on
+        ``setup.py`` or ``setup.cfg``). However, ``setuptools`` can call this function
+        to ignore given ``ext_modules`` and proceed with the auto-discovery if
+        ``packages`` and ``py_modules`` are not given (e.g. when using pyproject.toml
+        metadata).
+        """
+        self._skip_ext_modules = True
+
+    @property
+    def _root_dir(self) -> StrPath:
+        # The best is to wait until `src_root` is set in dist, before using _root_dir.
+        return self.dist.src_root or os.curdir
+
+    @property
+    def _package_dir(self) -> dict[str, str]:
+        if self.dist.package_dir is None:
+            return {}
+        return self.dist.package_dir
+
+    def __call__(
+        self, force: bool = False, name: bool = True, ignore_ext_modules: bool = False
+    ):
+        """Automatically discover missing configuration fields
+        and modifies the given ``distribution`` object in-place.
+
+        Note that by default this will only have an effect the first time the
+        ``ConfigDiscovery`` object is called.
+
+        To repeatedly invoke automatic discovery (e.g. when the project
+        directory changes), please use ``force=True`` (or create a new
+        ``ConfigDiscovery`` instance).
+        """
+        if force is False and (self._called or self._disabled):
+            # Avoid overhead of multiple calls
+            return
+
+        self._analyse_package_layout(ignore_ext_modules)
+        if name:
+            self.analyse_name()  # depends on ``packages`` and ``py_modules``
+
+        self._called = True
+
+    def _explicitly_specified(self, ignore_ext_modules: bool) -> bool:
+        """``True`` if the user has specified some form of package/module listing"""
+        ignore_ext_modules = ignore_ext_modules or self._skip_ext_modules
+        ext_modules = not (self.dist.ext_modules is None or ignore_ext_modules)
+        return (
+            self.dist.packages is not None
+            or self.dist.py_modules is not None
+            or ext_modules
+            or hasattr(self.dist, "configuration")
+            and self.dist.configuration
+            # ^ Some projects use numpy.distutils.misc_util.Configuration
+        )
+
+    def _analyse_package_layout(self, ignore_ext_modules: bool) -> bool:
+        if self._explicitly_specified(ignore_ext_modules):
+            # For backward compatibility, just try to find modules/packages
+            # when nothing is given
+            return True
+
+        log.debug(
+            "No `packages` or `py_modules` configuration, performing "
+            "automatic discovery."
+        )
+
+        return (
+            self._analyse_explicit_layout()
+            or self._analyse_src_layout()
+            # flat-layout is the trickiest for discovery so it should be last
+            or self._analyse_flat_layout()
+        )
+
+    def _analyse_explicit_layout(self) -> bool:
+        """The user can explicitly give a package layout via ``package_dir``"""
+        package_dir = self._package_dir.copy()  # don't modify directly
+        package_dir.pop("", None)  # This falls under the "src-layout" umbrella
+        root_dir = self._root_dir
+
+        if not package_dir:
+            return False
+
+        log.debug(f"`explicit-layout` detected -- analysing {package_dir}")
+        pkgs = chain_iter(
+            _find_packages_within(pkg, os.path.join(root_dir, parent_dir))
+            for pkg, parent_dir in package_dir.items()
+        )
+        self.dist.packages = list(pkgs)
+        log.debug(f"discovered packages -- {self.dist.packages}")
+        return True
+
+    def _analyse_src_layout(self) -> bool:
+        """Try to find all packages or modules under the ``src`` directory
+        (or anything pointed by ``package_dir[""]``).
+
+        The "src-layout" is relatively safe for automatic discovery.
+        We assume that everything within is meant to be included in the
+        distribution.
+
+        If ``package_dir[""]`` is not given, but the ``src`` directory exists,
+        this function will set ``package_dir[""] = "src"``.
+        """
+        package_dir = self._package_dir
+        src_dir = os.path.join(self._root_dir, package_dir.get("", "src"))
+        if not os.path.isdir(src_dir):
+            return False
+
+        log.debug(f"`src-layout` detected -- analysing {src_dir}")
+        package_dir.setdefault("", os.path.basename(src_dir))
+        self.dist.package_dir = package_dir  # persist eventual modifications
+        self.dist.packages = PEP420PackageFinder.find(src_dir)
+        self.dist.py_modules = ModuleFinder.find(src_dir)
+        log.debug(f"discovered packages -- {self.dist.packages}")
+        log.debug(f"discovered py_modules -- {self.dist.py_modules}")
+        return True
+
+    def _analyse_flat_layout(self) -> bool:
+        """Try to find all packages and modules under the project root.
+
+        Since the ``flat-layout`` is more dangerous in terms of accidentally including
+        extra files/directories, this function is more conservative and will raise an
+        error if multiple packages or modules are found.
+
+        This assumes that multi-package dists are uncommon and refuse to support that
+        use case in order to be able to prevent unintended errors.
+        """
+        log.debug(f"`flat-layout` detected -- analysing {self._root_dir}")
+        return self._analyse_flat_packages() or self._analyse_flat_modules()
+
+    def _analyse_flat_packages(self) -> bool:
+        self.dist.packages = FlatLayoutPackageFinder.find(self._root_dir)
+        top_level = remove_nested_packages(remove_stubs(self.dist.packages))
+        log.debug(f"discovered packages -- {self.dist.packages}")
+        self._ensure_no_accidental_inclusion(top_level, "packages")
+        return bool(top_level)
+
+    def _analyse_flat_modules(self) -> bool:
+        self.dist.py_modules = FlatLayoutModuleFinder.find(self._root_dir)
+        log.debug(f"discovered py_modules -- {self.dist.py_modules}")
+        self._ensure_no_accidental_inclusion(self.dist.py_modules, "modules")
+        return bool(self.dist.py_modules)
+
+    def _ensure_no_accidental_inclusion(self, detected: list[str], kind: str):
+        if len(detected) > 1:
+            from inspect import cleandoc
+
+            from setuptools.errors import PackageDiscoveryError
+
+            msg = f"""Multiple top-level {kind} discovered in a flat-layout: {detected}.
+
+            To avoid accidental inclusion of unwanted files or directories,
+            setuptools will not proceed with this build.
+
+            If you are trying to create a single distribution with multiple {kind}
+            on purpose, you should not rely on automatic discovery.
+            Instead, consider the following options:
+
+            1. set up custom discovery (`find` directive with `include` or `exclude`)
+            2. use a `src-layout`
+            3. explicitly set `py_modules` or `packages` with a list of names
+
+            To find more information, look for "package discovery" on setuptools docs.
+            """
+            raise PackageDiscoveryError(cleandoc(msg))
+
+    def analyse_name(self) -> None:
+        """The packages/modules are the essential contribution of the author.
+        Therefore the name of the distribution can be derived from them.
+        """
+        if self.dist.metadata.name or self.dist.name:
+            # get_name() is not reliable (can return "UNKNOWN")
+            return
+
+        log.debug("No `name` configuration, performing automatic discovery")
+
+        name = (
+            self._find_name_single_package_or_module()
+            or self._find_name_from_packages()
+        )
+        if name:
+            self.dist.metadata.name = name
+
+    def _find_name_single_package_or_module(self) -> str | None:
+        """Exactly one module or package"""
+        for field in ('packages', 'py_modules'):
+            items = getattr(self.dist, field, None) or []
+            if items and len(items) == 1:
+                log.debug(f"Single module/package detected, name: {items[0]}")
+                return items[0]
+
+        return None
+
+    def _find_name_from_packages(self) -> str | None:
+        """Try to find the root package that is not a PEP 420 namespace"""
+        if not self.dist.packages:
+            return None
+
+        packages = remove_stubs(sorted(self.dist.packages, key=len))
+        package_dir = self.dist.package_dir or {}
+
+        parent_pkg = find_parent_package(packages, package_dir, self._root_dir)
+        if parent_pkg:
+            log.debug(f"Common parent package detected, name: {parent_pkg}")
+            return parent_pkg
+
+        log.warn("No parent package detected, impossible to derive `name`")
+        return None
+
+
+def remove_nested_packages(packages: list[str]) -> list[str]:
+    """Remove nested packages from a list of packages.
+
+    >>> remove_nested_packages(["a", "a.b1", "a.b2", "a.b1.c1"])
+    ['a']
+    >>> remove_nested_packages(["a", "b", "c.d", "c.d.e.f", "g.h", "a.a1"])
+    ['a', 'b', 'c.d', 'g.h']
+    """
+    pkgs = sorted(packages, key=len)
+    top_level = pkgs[:]
+    size = len(pkgs)
+    for i, name in enumerate(reversed(pkgs)):
+        if any(name.startswith(f"{other}.") for other in top_level):
+            top_level.pop(size - i - 1)
+
+    return top_level
+
+
+def remove_stubs(packages: list[str]) -> list[str]:
+    """Remove type stubs (:pep:`561`) from a list of packages.
+
+    >>> remove_stubs(["a", "a.b", "a-stubs", "a-stubs.b.c", "b", "c-stubs"])
+    ['a', 'a.b', 'b']
+    """
+    return [pkg for pkg in packages if not pkg.split(".")[0].endswith("-stubs")]
+
+
+def find_parent_package(
+    packages: list[str], package_dir: Mapping[str, str], root_dir: StrPath
+) -> str | None:
+    """Find the parent package that is not a namespace."""
+    packages = sorted(packages, key=len)
+    common_ancestors = []
+    for i, name in enumerate(packages):
+        if not all(n.startswith(f"{name}.") for n in packages[i + 1 :]):
+            # Since packages are sorted by length, this condition is able
+            # to find a list of all common ancestors.
+            # When there is divergence (e.g. multiple root packages)
+            # the list will be empty
+            break
+        common_ancestors.append(name)
+
+    for name in common_ancestors:
+        pkg_path = find_package_path(name, package_dir, root_dir)
+        init = os.path.join(pkg_path, "__init__.py")
+        if os.path.isfile(init):
+            return name
+
+    return None
+
+
+def find_package_path(
+    name: str, package_dir: Mapping[str, str], root_dir: StrPath
+) -> str:
+    """Given a package name, return the path where it should be found on
+    disk, considering the ``package_dir`` option.
+
+    >>> path = find_package_path("my.pkg", {"": "root/is/nested"}, ".")
+    >>> path.replace(os.sep, "/")
+    './root/is/nested/my/pkg'
+
+    >>> path = find_package_path("my.pkg", {"my": "root/is/nested"}, ".")
+    >>> path.replace(os.sep, "/")
+    './root/is/nested/pkg'
+
+    >>> path = find_package_path("my.pkg", {"my.pkg": "root/is/nested"}, ".")
+    >>> path.replace(os.sep, "/")
+    './root/is/nested'
+
+    >>> path = find_package_path("other.pkg", {"my.pkg": "root/is/nested"}, ".")
+    >>> path.replace(os.sep, "/")
+    './other/pkg'
+    """
+    parts = name.split(".")
+    for i in range(len(parts), 0, -1):
+        # Look backwards, the most specific package_dir first
+        partial_name = ".".join(parts[:i])
+        if partial_name in package_dir:
+            parent = package_dir[partial_name]
+            return os.path.join(root_dir, parent, *parts[i:])
+
+    parent = package_dir.get("") or ""
+    return os.path.join(root_dir, *parent.split("/"), *parts)
+
+
+def construct_package_dir(packages: list[str], package_path: StrPath) -> dict[str, str]:
+    parent_pkgs = remove_nested_packages(packages)
+    prefix = Path(package_path).parts
+    return {pkg: "/".join([*prefix, *pkg.split(".")]) for pkg in parent_pkgs}
diff --git a/setuptools/dist.py b/setuptools/dist.py
index 30ff35e320..8d972cc49b 100644
--- a/setuptools/dist.py
+++ b/setuptools/dist.py
@@ -1,128 +1,248 @@
+from __future__ import annotations
+
+import functools
+import io
+import itertools
+import numbers
+import os
+import re
+import sys
+from collections.abc import Iterable, Iterator, MutableMapping, Sequence
+from glob import glob
+from pathlib import Path
+from typing import TYPE_CHECKING, Any, Union
+
+from more_itertools import partition, unique_everseen
+from packaging.markers import InvalidMarker, Marker
+from packaging.specifiers import InvalidSpecifier, SpecifierSet
+from packaging.version import Version
+
+from . import (
+    _entry_points,
+    _reqs,
+    _static,
+    command as _,  # noqa: F401 # imported for side-effects
+)
+from ._importlib import metadata
+from ._normalization import _canonicalize_license_expression
+from ._path import StrPath
+from ._reqs import _StrOrIter
+from .config import pyprojecttoml, setupcfg
+from .discovery import ConfigDiscovery
+from .errors import InvalidConfigError
+from .monkey import get_unpatched
+from .warnings import InformationOnly, SetuptoolsDeprecationWarning
+
+import distutils.cmd
+import distutils.command
+import distutils.core
+import distutils.dist
+import distutils.log
+from distutils.debug import DEBUG
+from distutils.errors import DistutilsOptionError, DistutilsSetupError
+from distutils.fancy_getopt import translate_longopt
+from distutils.util import strtobool
+
+if TYPE_CHECKING:
+    from typing_extensions import TypeAlias
+
+    from pkg_resources import Distribution as _pkg_resources_Distribution
+
+
 __all__ = ['Distribution']
 
-from distutils.core import Distribution as _Distribution
-from setuptools.depends import Require
-from setuptools.command.install import install
-from setuptools.command.sdist import sdist
-from setuptools.command.install_lib import install_lib
-from distutils.errors import DistutilsOptionError, DistutilsPlatformError
-from distutils.errors import DistutilsSetupError
-import setuptools, pkg_resources, distutils.core, distutils.dist, distutils.cmd
-import os, distutils.log
-
-def _get_unpatched(cls):
-    """Protect against re-patching the distutils if reloaded
-
-    Also ensures that no other distutils extension monkeypatched the distutils
-    first.
-    """
-    while cls.__module__.startswith('setuptools'):
-        cls, = cls.__bases__
-    if not cls.__module__.startswith('distutils'):
-        raise AssertionError(
-            "distutils has already been patched by %r" % cls
+_sequence = tuple, list
+"""
+:meta private:
+
+Supported iterable types that are known to be:
+- ordered (which `set` isn't)
+- not match a str (which `Sequence[str]` does)
+- not imply a nested type (like `dict`)
+for use with `isinstance`.
+"""
+_Sequence: TypeAlias = Union[tuple[str, ...], list[str]]
+# This is how stringifying _Sequence would look in Python 3.10
+_sequence_type_repr = "tuple[str, ...] | list[str]"
+_OrderedStrSequence: TypeAlias = Union[str, dict[str, Any], Sequence[str]]
+"""
+:meta private:
+Avoid single-use iterable. Disallow sets.
+A poor approximation of an OrderedSequence (dict doesn't match a Sequence).
+"""
+
+
+def __getattr__(name: str) -> Any:  # pragma: no cover
+    if name == "sequence":
+        SetuptoolsDeprecationWarning.emit(
+            "`setuptools.dist.sequence` is an internal implementation detail.",
+            "Please define your own `sequence = tuple, list` instead.",
+            due_date=(2025, 8, 28),  # Originally added on 2024-08-27
         )
-    return cls
-
-_Distribution = _get_unpatched(_Distribution)
+        return _sequence
+    raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
 
-sequence = tuple, list
 
 def check_importable(dist, attr, value):
     try:
-        ep = pkg_resources.EntryPoint.parse('x='+value)
+        ep = metadata.EntryPoint(value=value, name=None, group=None)
         assert not ep.extras
-    except (TypeError,ValueError,AttributeError,AssertionError):
+    except (TypeError, ValueError, AttributeError, AssertionError) as e:
         raise DistutilsSetupError(
-            "%r must be importable 'module:attrs' string (got %r)"
-            % (attr,value)
-        )
+            f"{attr!r} must be importable 'module:attrs' string (got {value!r})"
+        ) from e
 
 
-def assert_string_list(dist, attr, value):
-    """Verify that value is a string list or None"""
+def assert_string_list(dist, attr: str, value: _Sequence) -> None:
+    """Verify that value is a string list"""
     try:
-        assert ''.join(value)!=value
-    except (TypeError,ValueError,AttributeError,AssertionError):
+        # verify that value is a list or tuple to exclude unordered
+        # or single-use iterables
+        assert isinstance(value, _sequence)
+        # verify that elements of value are strings
+        assert ''.join(value) != value
+    except (TypeError, ValueError, AttributeError, AssertionError) as e:
         raise DistutilsSetupError(
-            "%r must be a list of strings (got %r)" % (attr,value)
-        )
+            f"{attr!r} must be of type <{_sequence_type_repr}> (got {value!r})"
+        ) from e
+
 
 def check_nsp(dist, attr, value):
     """Verify that namespace packages are valid"""
-    assert_string_list(dist,attr,value)
-    for nsp in value:
+    ns_packages = value
+    assert_string_list(dist, attr, ns_packages)
+    for nsp in ns_packages:
         if not dist.has_contents_for(nsp):
             raise DistutilsSetupError(
-                "Distribution contains no modules or packages for " +
-                "namespace package %r" % nsp
+                f"Distribution contains no modules or packages for namespace package {nsp!r}"
             )
-        if '.' in nsp:
-            parent = '.'.join(nsp.split('.')[:-1])
-            if parent not in value:
-                distutils.log.warn(
-                    "%r is declared as a package namespace, but %r is not:"
-                    " please correct this in setup.py", nsp, parent
-                )
+        parent, _sep, _child = nsp.rpartition('.')
+        if parent and parent not in ns_packages:
+            distutils.log.warn(
+                "WARNING: %r is declared as a package namespace, but %r"
+                " is not: please correct this in setup.py",
+                nsp,
+                parent,
+            )
+        SetuptoolsDeprecationWarning.emit(
+            "The namespace_packages parameter is deprecated.",
+            "Please replace its usage with implicit namespaces (PEP 420).",
+            see_docs="references/keywords.html#keyword-namespace-packages",
+            # TODO: define due_date, it may break old packages that are no longer
+            # maintained (e.g. sphinxcontrib extensions) when installed from source.
+            # Warning officially introduced in May 2022, however the deprecation
+            # was mentioned much earlier in the docs (May 2020, see #2149).
+        )
+
 
 def check_extras(dist, attr, value):
     """Verify that extras_require mapping is valid"""
     try:
-        for k,v in value.items():
-            list(pkg_resources.parse_requirements(v))
-    except (TypeError,ValueError,AttributeError):
+        list(itertools.starmap(_check_extra, value.items()))
+    except (TypeError, ValueError, AttributeError) as e:
         raise DistutilsSetupError(
             "'extras_require' must be a dictionary whose values are "
             "strings or lists of strings containing valid project/version "
             "requirement specifiers."
-        )
+        ) from e
+
+
+def _check_extra(extra, reqs):
+    _name, _sep, marker = extra.partition(':')
+    try:
+        _check_marker(marker)
+    except InvalidMarker:
+        msg = f"Invalid environment marker: {marker} ({extra!r})"
+        raise DistutilsSetupError(msg) from None
+    list(_reqs.parse(reqs))
 
 
+def _check_marker(marker):
+    if not marker:
+        return
+    m = Marker(marker)
+    m.evaluate()
 
 
 def assert_bool(dist, attr, value):
     """Verify that value is True, False, 0, or 1"""
     if bool(value) != value:
-        raise DistutilsSetupError(
-            "%r must be a boolean value (got %r)" % (attr,value)
-        )
-def check_requirements(dist, attr, value):
+        raise DistutilsSetupError(f"{attr!r} must be a boolean value (got {value!r})")
+
+
+def invalid_unless_false(dist, attr, value):
+    if not value:
+        DistDeprecationWarning.emit(f"{attr} is ignored.")
+        # TODO: should there be a `due_date` here?
+        return
+    raise DistutilsSetupError(f"{attr} is invalid.")
+
+
+def check_requirements(dist, attr: str, value: _OrderedStrSequence) -> None:
     """Verify that install_requires is a valid requirements list"""
     try:
-        list(pkg_resources.parse_requirements(value))
-    except (TypeError,ValueError):
-        raise DistutilsSetupError(
-            "%r must be a string or list of strings "
-            "containing valid project/version requirement specifiers" % (attr,)
+        list(_reqs.parse(value))
+        if isinstance(value, set):
+            raise TypeError("Unordered types are not allowed")
+    except (TypeError, ValueError) as error:
+        msg = (
+            f"{attr!r} must be a string or iterable of strings "
+            f"containing valid project/version requirement specifiers; {error}"
         )
+        raise DistutilsSetupError(msg) from error
+
+
+def check_specifier(dist, attr, value):
+    """Verify that value is a valid version specifier"""
+    try:
+        SpecifierSet(value)
+    except (InvalidSpecifier, AttributeError) as error:
+        msg = f"{attr!r} must be a string containing valid version specifiers; {error}"
+        raise DistutilsSetupError(msg) from error
+
+
 def check_entry_points(dist, attr, value):
     """Verify that entry_points map is parseable"""
     try:
-        pkg_resources.EntryPoint.parse_map(value)
-    except ValueError, e:
-        raise DistutilsSetupError(e)
+        _entry_points.load(value)
+    except Exception as e:
+        raise DistutilsSetupError(e) from e
 
-def check_test_suite(dist, attr, value):
-    if not isinstance(value,basestring):
-        raise DistutilsSetupError("test_suite must be a string")
 
 def check_package_data(dist, attr, value):
     """Verify that value is a dictionary of package names to glob lists"""
-    if isinstance(value,dict):
-        for k,v in value.items():
-            if not isinstance(k,str): break
-            try: iter(v)
-            except TypeError:
-                break
-        else:
-            return
-    raise DistutilsSetupError(
-        attr+" must be a dictionary mapping package names to lists of "
-        "wildcard patterns"
-    )
+    if not isinstance(value, dict):
+        raise DistutilsSetupError(
+            f"{attr!r} must be a dictionary mapping package names to lists of "
+            "string wildcard patterns"
+        )
+    for k, v in value.items():
+        if not isinstance(k, str):
+            raise DistutilsSetupError(
+                f"keys of {attr!r} dict must be strings (got {k!r})"
+            )
+        assert_string_list(dist, f'values of {attr!r} dict', v)
+
+
+def check_packages(dist, attr, value):
+    for pkgname in value:
+        if not re.match(r'\w+(\.\w+)*', pkgname):
+            distutils.log.warn(
+                "WARNING: %r not a valid package name; please use only "
+                ".-separated package names in setup.py",
+                pkgname,
+            )
+
+
+if TYPE_CHECKING:
+    # Work around a mypy issue where type[T] can't be used as a base: https://github.com/python/mypy/issues/10962
+    from distutils.core import Distribution as _Distribution
+else:
+    _Distribution = get_unpatched(distutils.core.Distribution)
+
 
 class Distribution(_Distribution):
-    """Distribution with support for features, tests, and package data
+    """Distribution with support for tests and package data
 
     This is an enhanced version of 'distutils.dist.Distribution' that
     effectively adds the following new optional keyword arguments to 'setup()':
@@ -149,26 +269,6 @@ class Distribution(_Distribution):
         EasyInstall and requests one of your extras, the corresponding
         additional requirements will be installed if needed.
 
-     'features' -- a dictionary mapping option names to 'setuptools.Feature'
-        objects.  Features are a portion of the distribution that can be
-        included or excluded based on user options, inter-feature dependencies,
-        and availability on the current system.  Excluded features are omitted
-        from all setup commands, including source and binary distributions, so
-        you can create multiple distributions from the same source tree.
-        Feature names should be valid Python identifiers, except that they may
-        contain the '-' (minus) sign.  Features can be included or excluded
-        via the command line options '--with-X' and '--without-X', where 'X' is
-        the name of the feature.  Whether a feature is included by default, and
-        whether you are allowed to control this from the command line, is
-        determined by the Feature object.  See the 'Feature' class for more
-        information.
-
-     'test_suite' -- the name of a test suite to run for the 'test' command.
-        If the user runs 'python setup.py test', the package will be installed,
-        and the named test suite will be run.  The format is the same as
-        would be used on a 'unittest.py' command line.  That is, it is the
-        dotted name of an object to import and call to generate a test suite.
-
      'package_data' -- a dictionary mapping package names to lists of filenames
         or globs to use to find data files contained in the named packages.
         If the dictionary has filenames or globs listed under '""' (the empty
@@ -184,212 +284,590 @@ class Distribution(_Distribution):
     for manipulating the distribution's contents.  For example, the 'include()'
     and 'exclude()' methods can be thought of as in-place add and subtract
     commands that add or remove packages, modules, extensions, and so on from
-    the distribution.  They are used by the feature subsystem to configure the
-    distribution for the included and excluded features.
+    the distribution.
     """
 
-    _patched_dist = None
-
-    def patch_missing_pkg_info(self, attrs):
-        # Fake up a replacement for the data that would normally come from
-        # PKG-INFO, but which might not yet be built if this is a fresh
-        # checkout.
-        #
-        if not attrs or 'name' not in attrs or 'version' not in attrs:
-            return
-        key = pkg_resources.safe_name(str(attrs['name'])).lower()
-        dist = pkg_resources.working_set.by_key.get(key)
-        if dist is not None and not dist.has_metadata('PKG-INFO'):
-            dist._version = pkg_resources.safe_version(str(attrs['version']))
-            self._patched_dist = dist
-
-    def __init__ (self, attrs=None):
+    _DISTUTILS_UNSUPPORTED_METADATA = {
+        'long_description_content_type': lambda: None,
+        'project_urls': dict,
+        'provides_extras': dict,  # behaves like an ordered set
+        'license_expression': lambda: None,
+        'license_file': lambda: None,
+        'license_files': lambda: None,
+        'install_requires': list,
+        'extras_require': dict,
+    }
+
+    # Used by build_py, editable_wheel and install_lib commands for legacy namespaces
+    namespace_packages: list[str]  #: :meta private: DEPRECATED
+
+    # Any: Dynamic assignment results in Incompatible types in assignment
+    def __init__(self, attrs: MutableMapping[str, Any] | None = None) -> None:
         have_package_data = hasattr(self, "package_data")
         if not have_package_data:
-            self.package_data = {}
-        self.require_features = []
-        self.features = {}
-        self.dist_files = []
-        self.patch_missing_pkg_info(attrs)
-        # Make sure we have any eggs needed to interpret 'attrs'
-        if attrs is not None:
-            self.dependency_links = attrs.pop('dependency_links', [])
-            assert_string_list(self,'dependency_links',self.dependency_links)
-        if attrs and 'setup_requires' in attrs:
-            self.fetch_build_eggs(attrs.pop('setup_requires'))
-        for ep in pkg_resources.iter_entry_points('distutils.setup_keywords'):
-            if not hasattr(self,ep.name):
-                setattr(self,ep.name,None)
-        _Distribution.__init__(self,attrs)
-        if isinstance(self.metadata.version, (int,long,float)):
+            self.package_data: dict[str, list[str]] = {}
+        attrs = attrs or {}
+        self.dist_files: list[tuple[str, str, str]] = []
+        self.include_package_data: bool | None = None
+        self.exclude_package_data: dict[str, list[str]] | None = None
+        # Filter-out setuptools' specific options.
+        self.src_root: str | None = attrs.pop("src_root", None)
+        self.dependency_links: list[str] = attrs.pop('dependency_links', [])
+        self.setup_requires: list[str] = attrs.pop('setup_requires', [])
+        for ep in metadata.entry_points(group='distutils.setup_keywords'):
+            vars(self).setdefault(ep.name, None)
+
+        metadata_only = set(self._DISTUTILS_UNSUPPORTED_METADATA)
+        metadata_only -= {"install_requires", "extras_require"}
+        dist_attrs = {k: v for k, v in attrs.items() if k not in metadata_only}
+        _Distribution.__init__(self, dist_attrs)
+
+        # Private API (setuptools-use only, not restricted to Distribution)
+        # Stores files that are referenced by the configuration and need to be in the
+        # sdist (e.g. `version = file: VERSION.txt`)
+        self._referenced_files = set[str]()
+
+        self.set_defaults = ConfigDiscovery(self)
+
+        self._set_metadata_defaults(attrs)
+
+        self.metadata.version = self._normalize_version(self.metadata.version)
+        self._finalize_requires()
+
+    def _validate_metadata(self):
+        required = {"name"}
+        provided = {
+            key
+            for key in vars(self.metadata)
+            if getattr(self.metadata, key, None) is not None
+        }
+        missing = required - provided
+
+        if missing:
+            msg = f"Required package metadata is missing: {missing}"
+            raise DistutilsSetupError(msg)
+
+    def _set_metadata_defaults(self, attrs):
+        """
+        Fill-in missing metadata fields not supported by distutils.
+        Some fields may have been set by other tools (e.g. pbr).
+        Those fields (vars(self.metadata)) take precedence to
+        supplied attrs.
+        """
+        for option, default in self._DISTUTILS_UNSUPPORTED_METADATA.items():
+            vars(self.metadata).setdefault(option, attrs.get(option, default()))
+
+    @staticmethod
+    def _normalize_version(version):
+        from . import sic
+
+        if isinstance(version, numbers.Number):
             # Some people apparently take "version number" too literally :)
-            self.metadata.version = str(self.metadata.version)
+            version = str(version)
+        elif isinstance(version, sic) or version is None:
+            return version
 
-    def parse_command_line(self):
-        """Process features after parsing command line options"""
-        result = _Distribution.parse_command_line(self)
-        if self.features:
-            self._finalize_features()
-        return result
+        normalized = str(Version(version))
+        if version != normalized:
+            InformationOnly.emit(f"Normalizing '{version}' to '{normalized}'")
+            return normalized
+        return version
 
-    def _feature_attrname(self,name):
-        """Convert feature name to corresponding option attribute name"""
-        return 'with_'+name.replace('-','_')
+    def _finalize_requires(self):
+        """
+        Set `metadata.python_requires` and fix environment markers
+        in `install_requires` and `extras_require`.
+        """
+        if getattr(self, 'python_requires', None):
+            self.metadata.python_requires = self.python_requires
+
+        self._normalize_requires()
+        self.metadata.install_requires = self.install_requires
+        self.metadata.extras_require = self.extras_require
+
+        if self.extras_require:
+            for extra in self.extras_require.keys():
+                # Setuptools allows a weird ": syntax for extras
+                extra = extra.split(':')[0]
+                if extra:
+                    self.metadata.provides_extras.setdefault(extra)
+
+    def _normalize_requires(self):
+        """Make sure requirement-related attributes exist and are normalized"""
+        install_requires = getattr(self, "install_requires", None) or []
+        extras_require = getattr(self, "extras_require", None) or {}
+
+        # Preserve the "static"-ness of values parsed from config files
+        list_ = _static.List if _static.is_static(install_requires) else list
+        self.install_requires = list_(map(str, _reqs.parse(install_requires)))
+
+        dict_ = _static.Dict if _static.is_static(extras_require) else dict
+        self.extras_require = dict_(
+            (k, list(map(str, _reqs.parse(v or [])))) for k, v in extras_require.items()
+        )
 
-    def fetch_build_eggs(self, requires):
-        """Resolve pre-setup requirements"""
-        from pkg_resources import working_set, parse_requirements
-        for dist in working_set.resolve(
-            parse_requirements(requires), installer=self.fetch_build_egg
-        ):
-            working_set.add(dist)
-
-    def finalize_options(self):
-        _Distribution.finalize_options(self)
-        if self.features:
-            self._set_global_opts_from_features()
-
-        for ep in pkg_resources.iter_entry_points('distutils.setup_keywords'):
-            value = getattr(self,ep.name,None)
-            if value is not None:
-                ep.require(installer=self.fetch_build_egg)
-                ep.load()(self, ep.name, value)
+    def _finalize_license_expression(self) -> None:
+        """
+        Normalize license and license_expression.
+        >>> dist = Distribution({"license_expression": _static.Str("mit aNd  gpl-3.0-OR-later")})
+        >>> _static.is_static(dist.metadata.license_expression)
+        True
+        >>> dist._finalize_license_expression()
+        >>> _static.is_static(dist.metadata.license_expression)  # preserve "static-ness"
+        True
+        >>> print(dist.metadata.license_expression)
+        MIT AND GPL-3.0-or-later
+        """
+        classifiers = self.metadata.get_classifiers()
+        license_classifiers = [cl for cl in classifiers if cl.startswith("License :: ")]
+
+        license_expr = self.metadata.license_expression
+        if license_expr:
+            str_ = _static.Str if _static.is_static(license_expr) else str
+            normalized = str_(_canonicalize_license_expression(license_expr))
+            if license_expr != normalized:
+                InformationOnly.emit(f"Normalizing '{license_expr}' to '{normalized}'")
+                self.metadata.license_expression = normalized
+            if license_classifiers:
+                raise InvalidConfigError(
+                    "License classifiers have been superseded by license expressions "
+                    "(see https://peps.python.org/pep-0639/). Please remove:\n\n"
+                    + "\n".join(license_classifiers),
+                )
+        elif license_classifiers:
+            pypa_guides = "guides/writing-pyproject-toml/#license"
+            SetuptoolsDeprecationWarning.emit(
+                "License classifiers are deprecated.",
+                "Please consider removing the following classifiers in favor of a "
+                "SPDX license expression:\n\n" + "\n".join(license_classifiers),
+                see_url=f"https://packaging.python.org/en/latest/{pypa_guides}",
+                # Warning introduced on 2025-02-17
+                # TODO: Should we add a due date? It may affect old/unmaintained
+                #       packages in the ecosystem and cause problems...
+            )
 
-    def fetch_build_egg(self, req):
-        """Fetch an egg needed for building"""
-        try:
-            cmd = self._egg_fetcher
-        except AttributeError:
-            from setuptools.command.easy_install import easy_install
-            dist = self.__class__({'script_args':['easy_install']})
-            dist.parse_config_files()
-            opts = dist.get_option_dict('easy_install')
-            keep = (
-                'find_links', 'site_dirs', 'index_url', 'optimize',
-                'site_dirs', 'allow_hosts'
+    def _finalize_license_files(self) -> None:
+        """Compute names of all license files which should be included."""
+        license_files: list[str] | None = self.metadata.license_files
+        patterns = license_files or []
+
+        license_file: str | None = self.metadata.license_file
+        if license_file and license_file not in patterns:
+            patterns.append(license_file)
+
+        if license_files is None and license_file is None:
+            # Default patterns match the ones wheel uses
+            # See https://wheel.readthedocs.io/en/stable/user_guide.html
+            # -> 'Including license files in the generated wheel file'
+            patterns = ['LICEN[CS]E*', 'COPYING*', 'NOTICE*', 'AUTHORS*']
+            files = self._expand_patterns(patterns, enforce_match=False)
+        else:  # Patterns explicitly given by the user
+            files = self._expand_patterns(patterns, enforce_match=True)
+
+        self.metadata.license_files = list(unique_everseen(files))
+
+    @classmethod
+    def _expand_patterns(
+        cls, patterns: list[str], enforce_match: bool = True
+    ) -> Iterator[str]:
+        """
+        >>> list(Distribution._expand_patterns(['LICENSE']))
+        ['LICENSE']
+        >>> list(Distribution._expand_patterns(['pyproject.toml', 'LIC*']))
+        ['pyproject.toml', 'LICENSE']
+        >>> list(Distribution._expand_patterns(['setuptools/**/pyprojecttoml.py']))
+        ['setuptools/config/pyprojecttoml.py']
+        """
+        return (
+            path.replace(os.sep, "/")
+            for pattern in patterns
+            for path in sorted(cls._find_pattern(pattern, enforce_match))
+            if not path.endswith('~') and os.path.isfile(path)
+        )
+
+    @staticmethod
+    def _find_pattern(pattern: str, enforce_match: bool = True) -> list[str]:
+        r"""
+        >>> Distribution._find_pattern("LICENSE")
+        ['LICENSE']
+        >>> Distribution._find_pattern("/LICENSE.MIT")
+        Traceback (most recent call last):
+        ...
+        setuptools.errors.InvalidConfigError: Pattern '/LICENSE.MIT' should be relative...
+        >>> Distribution._find_pattern("../LICENSE.MIT")
+        Traceback (most recent call last):
+        ...
+        setuptools.warnings.SetuptoolsDeprecationWarning: ...Pattern '../LICENSE.MIT' cannot contain '..'...
+        >>> Distribution._find_pattern("LICEN{CSE*")
+        Traceback (most recent call last):
+        ...
+        setuptools.warnings.SetuptoolsDeprecationWarning: ...Pattern 'LICEN{CSE*' contains invalid characters...
+        """
+        pypa_guides = "specifications/glob-patterns/"
+        if ".." in pattern:
+            SetuptoolsDeprecationWarning.emit(
+                f"Pattern {pattern!r} cannot contain '..'",
+                """
+                Please ensure the files specified are contained by the root
+                of the Python package (normally marked by `pyproject.toml`).
+                """,
+                see_url=f"https://packaging.python.org/en/latest/{pypa_guides}",
+                due_date=(2026, 3, 20),  # Introduced in 2025-03-20
+                # Replace with InvalidConfigError after deprecation
+            )
+        if pattern.startswith((os.sep, "/")) or ":\\" in pattern:
+            raise InvalidConfigError(
+                f"Pattern {pattern!r} should be relative and must not start with '/'"
             )
-            for key in opts.keys():
-                if key not in keep:
-                    del opts[key]   # don't use any other settings
-            if self.dependency_links:
-                links = self.dependency_links[:]
-                if 'find_links' in opts:
-                    links = opts['find_links'][1].split() + links
-                opts['find_links'] = ('setup', links)
-            cmd = easy_install(
-                dist, args=["x"], install_dir=os.curdir, exclude_scripts=True,
-                always_copy=False, build_directory=None, editable=False,
-                upgrade=False, multi_version=True, no_report = True
+        if re.match(r'^[\w\-\.\/\*\?\[\]]+$', pattern) is None:
+            SetuptoolsDeprecationWarning.emit(
+                "Please provide a valid glob pattern.",
+                "Pattern {pattern!r} contains invalid characters.",
+                pattern=pattern,
+                see_url=f"https://packaging.python.org/en/latest/{pypa_guides}",
+                due_date=(2026, 3, 20),  # Introduced in 2025-02-20
             )
-            cmd.ensure_finalized()
-            self._egg_fetcher = cmd
-        return cmd.easy_install(req)
 
-    def _set_global_opts_from_features(self):
-        """Add --with-X/--without-X options based on optional features"""
+        found = glob(pattern, recursive=True)
+
+        if enforce_match and not found:
+            SetuptoolsDeprecationWarning.emit(
+                "Cannot find any files for the given pattern.",
+                "Pattern {pattern!r} did not match any files.",
+                pattern=pattern,
+                due_date=(2026, 3, 20),  # Introduced in 2025-02-20
+                # PEP 639 requires us to error, but as a transition period
+                # we will only issue a warning to give people time to prepare.
+                # After the transition, this should raise an InvalidConfigError.
+            )
+        return found
 
-        go = []
-        no = self.negative_opt.copy()
+    # FIXME: 'Distribution._parse_config_files' is too complex (14)
+    def _parse_config_files(self, filenames=None):  # noqa: C901
+        """
+        Adapted from distutils.dist.Distribution.parse_config_files,
+        this method provides the same functionality in subtly-improved
+        ways.
+        """
+        from configparser import ConfigParser
+
+        # Ignore install directory options if we have a venv
+        ignore_options = (
+            []
+            if sys.prefix == sys.base_prefix
+            else [
+                'install-base',
+                'install-platbase',
+                'install-lib',
+                'install-platlib',
+                'install-purelib',
+                'install-headers',
+                'install-scripts',
+                'install-data',
+                'prefix',
+                'exec-prefix',
+                'home',
+                'user',
+                'root',
+            ]
+        )
 
-        for name,feature in self.features.items():
-            self._set_feature(name,None)
-            feature.validate(self)
+        ignore_options = frozenset(ignore_options)
 
-            if feature.optional:
-                descr = feature.description
-                incdef = ' (default)'
-                excdef=''
-                if not feature.include_by_default():
-                    excdef, incdef = incdef, excdef
+        if filenames is None:
+            filenames = self.find_config_files()
 
-                go.append(('with-'+name, None, 'include '+descr+incdef))
-                go.append(('without-'+name, None, 'exclude '+descr+excdef))
-                no['without-'+name] = 'with-'+name
+        if DEBUG:
+            self.announce("Distribution.parse_config_files():")
 
-        self.global_options = self.feature_options = go + self.global_options
-        self.negative_opt = self.feature_negopt = no
+        parser = ConfigParser()
+        parser.optionxform = str
+        for filename in filenames:
+            with open(filename, encoding='utf-8') as reader:
+                if DEBUG:
+                    self.announce("  reading {filename}".format(**locals()))
+                parser.read_file(reader)
+            for section in parser.sections():
+                options = parser.options(section)
+                opt_dict = self.get_option_dict(section)
 
+                for opt in options:
+                    if opt == '__name__' or opt in ignore_options:
+                        continue
 
+                    val = parser.get(section, opt)
+                    opt = self._enforce_underscore(opt, section)
+                    opt = self._enforce_option_lowercase(opt, section)
+                    opt_dict[opt] = (filename, val)
 
+            # Make the ConfigParser forget everything (so we retain
+            # the original filenames that options come from)
+            parser.__init__()
 
+        if 'global' not in self.command_options:
+            return
 
+        # If there was a "global" section in the config file, use it
+        # to set Distribution options.
+
+        for opt, (src, val) in self.command_options['global'].items():
+            alias = self.negative_opt.get(opt)
+            if alias:
+                val = not strtobool(val)
+            elif opt in ('verbose', 'dry_run'):  # ugh!
+                val = strtobool(val)
+
+            try:
+                setattr(self, alias or opt, val)
+            except ValueError as e:
+                raise DistutilsOptionError(e) from e
+
+    def _enforce_underscore(self, opt: str, section: str) -> str:
+        if "-" not in opt or self._skip_setupcfg_normalization(section):
+            return opt
+
+        underscore_opt = opt.replace('-', '_')
+        affected = f"(Affected: {self.metadata.name})." if self.metadata.name else ""
+        SetuptoolsDeprecationWarning.emit(
+            f"Invalid dash-separated key {opt!r} in {section!r} (setup.cfg), "
+            f"please use the underscore name {underscore_opt!r} instead.",
+            f"""
+            Usage of dash-separated {opt!r} will not be supported in future
+            versions. Please use the underscore name {underscore_opt!r} instead.
+            {affected}
+            """,
+            see_docs="userguide/declarative_config.html",
+            due_date=(2026, 3, 3),
+            # Warning initially introduced in 3 Mar 2021
+        )
+        return underscore_opt
+
+    def _enforce_option_lowercase(self, opt: str, section: str) -> str:
+        if opt.islower() or self._skip_setupcfg_normalization(section):
+            return opt
+
+        lowercase_opt = opt.lower()
+        affected = f"(Affected: {self.metadata.name})." if self.metadata.name else ""
+        SetuptoolsDeprecationWarning.emit(
+            f"Invalid uppercase key {opt!r} in {section!r} (setup.cfg), "
+            f"please use lowercase {lowercase_opt!r} instead.",
+            f"""
+            Usage of uppercase key {opt!r} in {section!r} will not be supported in
+            future versions. Please use lowercase {lowercase_opt!r} instead.
+            {affected}
+            """,
+            see_docs="userguide/declarative_config.html",
+            due_date=(2026, 3, 3),
+            # Warning initially introduced in 6 Mar 2021
+        )
+        return lowercase_opt
+
+    def _skip_setupcfg_normalization(self, section: str) -> bool:
+        skip = (
+            'options.extras_require',
+            'options.data_files',
+            'options.entry_points',
+            'options.package_data',
+            'options.exclude_package_data',
+        )
+        return section in skip or not self._is_setuptools_section(section)
 
+    def _is_setuptools_section(self, section: str) -> bool:
+        return (
+            section == "metadata"
+            or section.startswith("options")
+            or section in _setuptools_commands()
+        )
 
+    # FIXME: 'Distribution._set_command_options' is too complex (14)
+    def _set_command_options(self, command_obj, option_dict=None):  # noqa: C901
+        """
+        Set the options for 'command_obj' from 'option_dict'.  Basically
+        this means copying elements of a dictionary ('option_dict') to
+        attributes of an instance ('command').
 
+        'command_obj' must be a Command instance.  If 'option_dict' is not
+        supplied, uses the standard option dictionary for this command
+        (from 'self.command_options').
 
+        (Adopted from distutils.dist.Distribution._set_command_options)
+        """
+        command_name = command_obj.get_command_name()
+        if option_dict is None:
+            option_dict = self.get_option_dict(command_name)
+
+        if DEBUG:
+            self.announce(f"  setting options for '{command_name}' command:")
+        for option, (source, value) in option_dict.items():
+            if DEBUG:
+                self.announce(f"    {option} = {value} (from {source})")
+            try:
+                bool_opts = [translate_longopt(o) for o in command_obj.boolean_options]
+            except AttributeError:
+                bool_opts = []
+            try:
+                neg_opt = command_obj.negative_opt
+            except AttributeError:
+                neg_opt = {}
+
+            try:
+                is_string = isinstance(value, str)
+                if option in neg_opt and is_string:
+                    setattr(command_obj, neg_opt[option], not strtobool(value))
+                elif option in bool_opts and is_string:
+                    setattr(command_obj, option, strtobool(value))
+                elif hasattr(command_obj, option):
+                    setattr(command_obj, option, value)
+                else:
+                    raise DistutilsOptionError(
+                        f"error in {source}: command '{command_name}' has no such option '{option}'"
+                    )
+            except ValueError as e:
+                raise DistutilsOptionError(e) from e
+
+    def _get_project_config_files(self, filenames: Iterable[StrPath] | None):
+        """Add default file and split between INI and TOML"""
+        tomlfiles = []
+        standard_project_metadata = Path(self.src_root or os.curdir, "pyproject.toml")
+        if filenames is not None:
+            parts = partition(lambda f: Path(f).suffix == ".toml", filenames)
+            filenames = list(parts[0])  # 1st element => predicate is False
+            tomlfiles = list(parts[1])  # 2nd element => predicate is True
+        elif standard_project_metadata.exists():
+            tomlfiles = [standard_project_metadata]
+        return filenames, tomlfiles
+
+    def parse_config_files(
+        self,
+        filenames: Iterable[StrPath] | None = None,
+        ignore_option_errors: bool = False,
+    ) -> None:
+        """Parses configuration files from various levels
+        and loads configuration.
+        """
+        inifiles, tomlfiles = self._get_project_config_files(filenames)
 
+        self._parse_config_files(filenames=inifiles)
 
+        setupcfg.parse_configuration(
+            self, self.command_options, ignore_option_errors=ignore_option_errors
+        )
+        for filename in tomlfiles:
+            pyprojecttoml.apply_configuration(self, filename, ignore_option_errors)
 
+        self._finalize_requires()
+        self._finalize_license_expression()
+        self._finalize_license_files()
 
+    def fetch_build_eggs(
+        self, requires: _StrOrIter
+    ) -> list[_pkg_resources_Distribution]:
+        """Resolve pre-setup requirements"""
+        from .installer import _fetch_build_eggs
 
+        return _fetch_build_eggs(self, requires)
 
+    def finalize_options(self) -> None:
+        """
+        Allow plugins to apply arbitrary operations to the
+        distribution. Each hook may optionally define a 'order'
+        to influence the order of execution. Smaller numbers
+        go first and the default is 0.
+        """
+        group = 'setuptools.finalize_distribution_options'
 
+        def by_order(hook):
+            return getattr(hook, 'order', 0)
 
+        defined = metadata.entry_points(group=group)
+        filtered = itertools.filterfalse(self._removed, defined)
+        loaded = map(lambda e: e.load(), filtered)
+        for ep in sorted(loaded, key=by_order):
+            ep(self)
 
-    def _finalize_features(self):
-        """Add/remove features and resolve dependencies between them"""
+    @staticmethod
+    def _removed(ep):
+        """
+        When removing an entry point, if metadata is loaded
+        from an older version of Setuptools, that removed
+        entry point will attempt to be loaded and will fail.
+        See #2765 for more details.
+        """
+        removed = {
+            # removed 2021-09-05
+            '2to3_doctests',
+        }
+        return ep.name in removed
+
+    def _finalize_setup_keywords(self):
+        for ep in metadata.entry_points(group='distutils.setup_keywords'):
+            value = getattr(self, ep.name, None)
+            if value is not None:
+                ep.load()(self, ep.name, value)
+
+    def get_egg_cache_dir(self):
+        from . import windows_support
+
+        egg_cache_dir = os.path.join(os.curdir, '.eggs')
+        if not os.path.exists(egg_cache_dir):
+            os.mkdir(egg_cache_dir)
+            windows_support.hide_file(egg_cache_dir)
+            readme_txt_filename = os.path.join(egg_cache_dir, 'README.txt')
+            with open(readme_txt_filename, 'w', encoding="utf-8") as f:
+                f.write(
+                    'This directory contains eggs that were downloaded '
+                    'by setuptools to build, test, and run plug-ins.\n\n'
+                )
+                f.write(
+                    'This directory caches those eggs to prevent '
+                    'repeated downloads.\n\n'
+                )
+                f.write('However, it is safe to delete this directory.\n\n')
 
-        # First, flag all the enabled items (and thus their dependencies)
-        for name,feature in self.features.items():
-            enabled = self.feature_is_included(name)
-            if enabled or (enabled is None and feature.include_by_default()):
-                feature.include_in(self)
-                self._set_feature(name,1)
+        return egg_cache_dir
 
-        # Then disable the rest, so that off-by-default features don't
-        # get flagged as errors when they're required by an enabled feature
-        for name,feature in self.features.items():
-            if not self.feature_is_included(name):
-                feature.exclude_from(self)
-                self._set_feature(name,0)
+    def fetch_build_egg(self, req):
+        """Fetch an egg needed for building"""
+        from .installer import fetch_build_egg
 
+        return fetch_build_egg(self, req)
 
-    def get_command_class(self, command):
+    def get_command_class(self, command: str) -> type[distutils.cmd.Command]:  # type: ignore[override] # Not doing complex overrides yet
         """Pluggable version of get_command_class()"""
         if command in self.cmdclass:
             return self.cmdclass[command]
 
-        for ep in pkg_resources.iter_entry_points('distutils.commands',command):
-            ep.require(installer=self.fetch_build_egg)
+        # Special case bdist_wheel so it's never loaded from "wheel"
+        if command == 'bdist_wheel':
+            from .command.bdist_wheel import bdist_wheel
+
+            return bdist_wheel
+
+        eps = metadata.entry_points(group='distutils.commands', name=command)
+        for ep in eps:
             self.cmdclass[command] = cmdclass = ep.load()
             return cmdclass
         else:
             return _Distribution.get_command_class(self, command)
 
     def print_commands(self):
-        for ep in pkg_resources.iter_entry_points('distutils.commands'):
+        for ep in metadata.entry_points(group='distutils.commands'):
             if ep.name not in self.cmdclass:
-                cmdclass = ep.load(False) # don't require extras, we're not running
+                cmdclass = ep.load()
                 self.cmdclass[ep.name] = cmdclass
         return _Distribution.print_commands(self)
 
+    def get_command_list(self):
+        for ep in metadata.entry_points(group='distutils.commands'):
+            if ep.name not in self.cmdclass:
+                cmdclass = ep.load()
+                self.cmdclass[ep.name] = cmdclass
+        return _Distribution.get_command_list(self)
 
-
-
-
-    def _set_feature(self,name,status):
-        """Set feature's inclusion status"""
-        setattr(self,self._feature_attrname(name),status)
-
-    def feature_is_included(self,name):
-        """Return 1 if feature is included, 0 if excluded, 'None' if unknown"""
-        return getattr(self,self._feature_attrname(name))
-
-    def include_feature(self,name):
-        """Request inclusion of feature named 'name'"""
-
-        if self.feature_is_included(name)==0:
-            descr = self.features[name].description
-            raise DistutilsOptionError(
-               descr + " is required, but was excluded or is not available"
-           )
-        self.features[name].include_in(self)
-        self._set_feature(name,1)
-
-    def include(self,**attrs):
+    def include(self, **attrs) -> None:
         """Add items to distribution that are named in keyword arguments
 
-        For example, 'dist.exclude(py_modules=["x"])' would add 'x' to
+        For example, 'dist.include(py_modules=["x"])' would add 'x' to
         the distribution's 'py_modules' attribute, if it was not already
         there.
 
@@ -401,96 +879,84 @@ def include(self,**attrs):
         will try to call 'dist._include_foo({"bar":"baz"})', which can then
         handle whatever special inclusion logic is needed.
         """
-        for k,v in attrs.items():
-            include = getattr(self, '_include_'+k, None)
+        for k, v in attrs.items():
+            include = getattr(self, '_include_' + k, None)
             if include:
                 include(v)
             else:
-                self._include_misc(k,v)
+                self._include_misc(k, v)
 
-    def exclude_package(self,package):
+    def exclude_package(self, package: str) -> None:
         """Remove packages, modules, and extensions in named package"""
 
-        pfx = package+'.'
+        pfx = package + '.'
         if self.packages:
             self.packages = [
-                p for p in self.packages
-                    if p<>package and not p.startswith(pfx)
+                p for p in self.packages if p != package and not p.startswith(pfx)
             ]
 
         if self.py_modules:
             self.py_modules = [
-                p for p in self.py_modules
-                    if p<>package and not p.startswith(pfx)
+                p for p in self.py_modules if p != package and not p.startswith(pfx)
             ]
 
         if self.ext_modules:
             self.ext_modules = [
-                p for p in self.ext_modules
-                    if p.name<>package and not p.name.startswith(pfx)
+                p
+                for p in self.ext_modules
+                if p.name != package and not p.name.startswith(pfx)
             ]
 
-
-    def has_contents_for(self,package):
+    def has_contents_for(self, package: str) -> bool:
         """Return true if 'exclude_package(package)' would do something"""
 
-        pfx = package+'.'
+        pfx = package + '.'
 
         for p in self.iter_distribution_names():
-            if p==package or p.startswith(pfx):
+            if p == package or p.startswith(pfx):
                 return True
 
+        return False
 
-
-
-
-
-
-
-
-
-    def _exclude_misc(self,name,value):
+    def _exclude_misc(self, name: str, value: _Sequence) -> None:
         """Handle 'exclude()' for list/tuple attrs without a special handler"""
-        if not isinstance(value,sequence):
+        if not isinstance(value, _sequence):
             raise DistutilsSetupError(
-                "%s: setting must be a list or tuple (%r)" % (name, value)
+                f"{name}: setting must be of type <{_sequence_type_repr}> (got {value!r})"
             )
         try:
-            old = getattr(self,name)
-        except AttributeError:
-            raise DistutilsSetupError(
-                "%s: No such distribution setting" % name
-            )
-        if old is not None and not isinstance(old,sequence):
+            old = getattr(self, name)
+        except AttributeError as e:
+            raise DistutilsSetupError(f"{name}: No such distribution setting") from e
+        if old is not None and not isinstance(old, _sequence):
             raise DistutilsSetupError(
-                name+": this setting cannot be changed via include/exclude"
+                name + ": this setting cannot be changed via include/exclude"
             )
         elif old:
-            setattr(self,name,[item for item in old if item not in value])
+            setattr(self, name, [item for item in old if item not in value])
 
-    def _include_misc(self,name,value):
+    def _include_misc(self, name: str, value: _Sequence) -> None:
         """Handle 'include()' for list/tuple attrs without a special handler"""
 
-        if not isinstance(value,sequence):
+        if not isinstance(value, _sequence):
             raise DistutilsSetupError(
-                "%s: setting must be a list (%r)" % (name, value)
+                f"{name}: setting must be of type <{_sequence_type_repr}> (got {value!r})"
             )
         try:
-            old = getattr(self,name)
-        except AttributeError:
-            raise DistutilsSetupError(
-                "%s: No such distribution setting" % name
-            )
+            old = getattr(self, name)
+        except AttributeError as e:
+            raise DistutilsSetupError(f"{name}: No such distribution setting") from e
         if old is None:
-            setattr(self,name,value)
-        elif not isinstance(old,sequence):
+            setattr(self, name, value)
+        elif not isinstance(old, _sequence):
             raise DistutilsSetupError(
-                name+": this setting cannot be changed via include/exclude"
+                name + ": this setting cannot be changed via include/exclude"
             )
         else:
-            setattr(self,name,old+[item for item in value if item not in old])
+            new = [item for item in value if item not in old]
+            setattr(self, name, list(old) + new)
 
-    def exclude(self,**attrs):
+    def exclude(self, **attrs) -> None:
         """Remove items from distribution that are named in keyword arguments
 
         For example, 'dist.exclude(py_modules=["x"])' would remove 'x' from
@@ -506,30 +972,19 @@ def exclude(self,**attrs):
         will try to call 'dist._exclude_foo({"bar":"baz"})', which can then
         handle whatever special exclusion logic is needed.
         """
-        for k,v in attrs.items():
-            exclude = getattr(self, '_exclude_'+k, None)
+        for k, v in attrs.items():
+            exclude = getattr(self, '_exclude_' + k, None)
             if exclude:
                 exclude(v)
             else:
-                self._exclude_misc(k,v)
+                self._exclude_misc(k, v)
 
-    def _exclude_packages(self,packages):
-        if not isinstance(packages,sequence):
+    def _exclude_packages(self, packages: _Sequence) -> None:
+        if not isinstance(packages, _sequence):
             raise DistutilsSetupError(
-                "packages: setting must be a list or tuple (%r)" % (packages,)
+                f"packages: setting must be of type <{_sequence_type_repr}> (got {packages!r})"
             )
-        map(self.exclude_package, packages)
-
-
-
-
-
-
-
-
-
-
-
+        list(map(self.exclude_package, packages))
 
     def _parse_command_opts(self, parser, args):
         # Remove --with-X/--without-X options when processing command args
@@ -540,39 +995,25 @@ def _parse_command_opts(self, parser, args):
         command = args[0]
         aliases = self.get_option_dict('aliases')
         while command in aliases:
-            src,alias = aliases[command]
-            del aliases[command]    # ensure each alias can expand only once!
+            _src, alias = aliases[command]
+            del aliases[command]  # ensure each alias can expand only once!
             import shlex
-            args[:1] = shlex.split(alias,True)
+
+            args[:1] = shlex.split(alias, True)
             command = args[0]
 
         nargs = _Distribution._parse_command_opts(self, parser, args)
 
         # Handle commands that want to consume all remaining arguments
         cmd_class = self.get_command_class(command)
-        if getattr(cmd_class,'command_consumes_arguments',None):
+        if getattr(cmd_class, 'command_consumes_arguments', None):
             self.get_option_dict(command)['args'] = ("command line", nargs)
             if nargs is not None:
                 return []
 
         return nargs
 
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-    def get_cmdline_options(self):
+    def get_cmdline_options(self) -> dict[str, dict[str, str | None]]:
         """Return a '{cmd: {opt:val}}' map of all command-line options
 
         Option names are all long, but do not include the leading '--', and
@@ -582,239 +1023,99 @@ def get_cmdline_options(self):
         Note that options provided by config files are intentionally excluded.
         """
 
-        d = {}
-
-        for cmd,opts in self.command_options.items():
-
-            for opt,(src,val) in opts.items():
+        d: dict[str, dict[str, str | None]] = {}
 
+        for cmd, opts in self.command_options.items():
+            val: str | None
+            for opt, (src, val) in opts.items():
                 if src != "command line":
                     continue
 
-                opt = opt.replace('_','-')
+                opt = opt.replace('_', '-')
 
-                if val==0:
+                if val == 0:
                     cmdobj = self.get_command_obj(cmd)
                     neg_opt = self.negative_opt.copy()
-                    neg_opt.update(getattr(cmdobj,'negative_opt',{}))
-                    for neg,pos in neg_opt.items():
-                        if pos==opt:
-                            opt=neg
-                            val=None
+                    neg_opt.update(getattr(cmdobj, 'negative_opt', {}))
+                    for neg, pos in neg_opt.items():
+                        if pos == opt:
+                            opt = neg
+                            val = None
                             break
                     else:
                         raise AssertionError("Shouldn't be able to get here")
 
-                elif val==1:
+                elif val == 1:
                     val = None
 
-                d.setdefault(cmd,{})[opt] = val
+                d.setdefault(cmd, {})[opt] = val
 
         return d
 
-
     def iter_distribution_names(self):
         """Yield all packages, modules, and extension names in distribution"""
 
-        for pkg in self.packages or ():
-            yield pkg
+        yield from self.packages or ()
 
-        for module in self.py_modules or ():
-            yield module
+        yield from self.py_modules or ()
 
         for ext in self.ext_modules or ():
-            if isinstance(ext,tuple):
-                name, buildinfo = ext
+            if isinstance(ext, tuple):
+                name, _buildinfo = ext
             else:
                 name = ext.name
             if name.endswith('module'):
                 name = name[:-6]
             yield name
 
-# Install it throughout the distutils
-for module in distutils.dist, distutils.core, distutils.cmd:
-    module.Distribution = Distribution
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-class Feature:
-    """A subset of the distribution that can be excluded if unneeded/wanted
-
-    Features are created using these keyword arguments:
-
-      'description' -- a short, human readable description of the feature, to
-         be used in error messages, and option help messages.
-
-      'standard' -- if true, the feature is included by default if it is
-         available on the current system.  Otherwise, the feature is only
-         included if requested via a command line '--with-X' option, or if
-         another included feature requires it.  The default setting is 'False'.
-
-      'available' -- if true, the feature is available for installation on the
-         current system.  The default setting is 'True'.
-
-      'optional' -- if true, the feature's inclusion can be controlled from the
-         command line, using the '--with-X' or '--without-X' options.  If
-         false, the feature's inclusion status is determined automatically,
-         based on 'availabile', 'standard', and whether any other feature
-         requires it.  The default setting is 'True'.
-
-      'require_features' -- a string or sequence of strings naming features
-         that should also be included if this feature is included.  Defaults to
-         empty list.  May also contain 'Require' objects that should be
-         added/removed from the distribution.
-
-      'remove' -- a string or list of strings naming packages to be removed
-         from the distribution if this feature is *not* included.  If the
-         feature *is* included, this argument is ignored.  This argument exists
-         to support removing features that "crosscut" a distribution, such as
-         defining a 'tests' feature that removes all the 'tests' subpackages
-         provided by other features.  The default for this argument is an empty
-         list.  (Note: the named package(s) or modules must exist in the base
-         distribution when the 'setup()' function is initially called.)
-
-      other keywords -- any other keyword arguments are saved, and passed to
-         the distribution's 'include()' and 'exclude()' methods when the
-         feature is included or excluded, respectively.  So, for example, you
-         could pass 'packages=["a","b"]' to cause packages 'a' and 'b' to be
-         added or removed from the distribution as appropriate.
-
-    A feature must include at least one 'requires', 'remove', or other
-    keyword argument.  Otherwise, it can't affect the distribution in any way.
-    Note also that you can subclass 'Feature' to create your own specialized
-    feature types that modify the distribution in other ways when included or
-    excluded.  See the docstrings for the various methods here for more detail.
-    Aside from the methods, the only feature attributes that distributions look
-    at are 'description' and 'optional'.
-    """
-    def __init__(self, description, standard=False, available=True,
-        optional=True, require_features=(), remove=(), **extras
-    ):
-
-        self.description = description
-        self.standard = standard
-        self.available = available
-        self.optional = optional
-        if isinstance(require_features,(str,Require)):
-            require_features = require_features,
-
-        self.require_features = [
-            r for r in require_features if isinstance(r,str)
-        ]
-        er = [r for r in require_features if not isinstance(r,str)]
-        if er: extras['require_features'] = er
-
-        if isinstance(remove,str):
-            remove = remove,
-        self.remove = remove
-        self.extras = extras
-
-        if not remove and not require_features and not extras:
-            raise DistutilsSetupError(
-                "Feature %s: must define 'require_features', 'remove', or at least one"
-                " of 'packages', 'py_modules', etc."
-            )
-
-    def include_by_default(self):
-        """Should this feature be included by default?"""
-        return self.available and self.standard
-
-    def include_in(self,dist):
-
-        """Ensure feature and its requirements are included in distribution
-
-        You may override this in a subclass to perform additional operations on
-        the distribution.  Note that this method may be called more than once
-        per feature, and so should be idempotent.
-
-        """
-
-        if not self.available:
-            raise DistutilsPlatformError(
-                self.description+" is required,"
-                "but is not available on this platform"
-            )
-
-        dist.include(**self.extras)
-
-        for f in self.require_features:
-            dist.include_feature(f)
-
-
-
-    def exclude_from(self,dist):
-
-        """Ensure feature is excluded from distribution
-
-        You may override this in a subclass to perform additional operations on
-        the distribution.  This method will be called at most once per
-        feature, and only after all included features have been asked to
-        include themselves.
-        """
-
-        dist.exclude(**self.extras)
-
-        if self.remove:
-            for item in self.remove:
-                dist.exclude_package(item)
-
-
-
-    def validate(self,dist):
-
-        """Verify that feature makes sense in context of distribution
-
-        This method is called by the distribution just before it parses its
-        command line.  It checks to ensure that the 'remove' attribute, if any,
-        contains only valid package/module names that are present in the base
-        distribution when 'setup()' is called.  You may override it in a
-        subclass to perform any other required validation of the feature
-        against a target distribution.
+    def handle_display_options(self, option_order):
+        """If there were any non-global "display-only" options
+        (--help-commands or the metadata display options) on the command
+        line, display the requested info and return true; else return
+        false.
         """
+        import sys
 
-        for item in self.remove:
-            if not dist.has_contents_for(item):
-                raise DistutilsSetupError(
-                    "%s wants to be able to remove %s, but the distribution"
-                    " doesn't contain any packages or modules under %s"
-                    % (self.description, item, item)
-                )
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+        if self.help_commands:
+            return _Distribution.handle_display_options(self, option_order)
 
+        # Stdout may be StringIO (e.g. in tests)
+        if not isinstance(sys.stdout, io.TextIOWrapper):
+            return _Distribution.handle_display_options(self, option_order)
 
+        # Don't wrap stdout if utf-8 is already the encoding. Provides
+        #  workaround for #334.
+        if sys.stdout.encoding.lower() in ('utf-8', 'utf8'):
+            return _Distribution.handle_display_options(self, option_order)
 
+        # Print metadata in UTF-8 no matter the platform
+        encoding = sys.stdout.encoding
+        sys.stdout.reconfigure(encoding='utf-8')
+        try:
+            return _Distribution.handle_display_options(self, option_order)
+        finally:
+            sys.stdout.reconfigure(encoding=encoding)
 
+    def run_command(self, command) -> None:
+        self.set_defaults()
+        # Postpone defaults until all explicit configuration is considered
+        # (setup() args, config files, command line and plugins)
 
+        super().run_command(command)
 
 
+@functools.cache
+def _setuptools_commands() -> set[str]:
+    try:
+        # Use older API for importlib.metadata compatibility
+        entry_points = metadata.distribution('setuptools').entry_points
+        eps: Iterable[str] = (ep.name for ep in entry_points)
+    except metadata.PackageNotFoundError:
+        # during bootstrapping, distribution doesn't exist
+        eps = []
+    return {*distutils.command.__all__, *eps}
+
+
+class DistDeprecationWarning(SetuptoolsDeprecationWarning):
+    """Class for warning about deprecations in dist in
+    setuptools. Not ignored by default, unlike DeprecationWarning."""
diff --git a/setuptools/errors.py b/setuptools/errors.py
new file mode 100644
index 0000000000..990ecbf4e2
--- /dev/null
+++ b/setuptools/errors.py
@@ -0,0 +1,67 @@
+"""setuptools.errors
+
+Provides exceptions used by setuptools modules.
+"""
+
+from __future__ import annotations
+
+from distutils import errors as _distutils_errors
+
+# Re-export errors from distutils to facilitate the migration to PEP632
+
+ByteCompileError = _distutils_errors.DistutilsByteCompileError
+CCompilerError = _distutils_errors.CCompilerError
+ClassError = _distutils_errors.DistutilsClassError
+CompileError = _distutils_errors.CompileError
+ExecError = _distutils_errors.DistutilsExecError
+FileError = _distutils_errors.DistutilsFileError
+InternalError = _distutils_errors.DistutilsInternalError
+LibError = _distutils_errors.LibError
+LinkError = _distutils_errors.LinkError
+ModuleError = _distutils_errors.DistutilsModuleError
+OptionError = _distutils_errors.DistutilsOptionError
+PlatformError = _distutils_errors.DistutilsPlatformError
+PreprocessError = _distutils_errors.PreprocessError
+SetupError = _distutils_errors.DistutilsSetupError
+TemplateError = _distutils_errors.DistutilsTemplateError
+UnknownFileError = _distutils_errors.UnknownFileError
+
+# The root error class in the hierarchy
+BaseError = _distutils_errors.DistutilsError
+
+
+class InvalidConfigError(OptionError):  # type: ignore[valid-type, misc] # distutils imports are `Any` on python 3.12+
+    """Error used for invalid configurations."""
+
+
+class RemovedConfigError(OptionError):  # type: ignore[valid-type, misc] # distutils imports are `Any` on python 3.12+
+    """Error used for configurations that were deprecated and removed."""
+
+
+class RemovedCommandError(BaseError, RuntimeError):  # type: ignore[valid-type, misc] # distutils imports are `Any` on python 3.12+
+    """Error used for commands that have been removed in setuptools.
+
+    Since ``setuptools`` is built on ``distutils``, simply removing a command
+    from ``setuptools`` will make the behavior fall back to ``distutils``; this
+    error is raised if a command exists in ``distutils`` but has been actively
+    removed in ``setuptools``.
+    """
+
+
+class PackageDiscoveryError(BaseError, RuntimeError):  # type: ignore[valid-type, misc] # distutils imports are `Any` on python 3.12+
+    """Impossible to perform automatic discovery of packages and/or modules.
+
+    The current project layout or given discovery options can lead to problems when
+    scanning the project directory.
+
+    Setuptools might also refuse to complete auto-discovery if an error prone condition
+    is detected (e.g. when a project is organised as a flat-layout but contains
+    multiple directories that can be taken as top-level packages inside a single
+    distribution [*]_). In these situations the users are encouraged to be explicit
+    about which packages to include or to make the discovery parameters more specific.
+
+    .. [*] Since multi-package distributions are uncommon it is very likely that the
+       developers did not intend for all the directories to be packaged, and are just
+       leaving auxiliary code in the repository top-level, such as maintenance-related
+       scripts.
+    """
diff --git a/setuptools/extension.py b/setuptools/extension.py
index d186c7a2d3..76e03d9d6b 100644
--- a/setuptools/extension.py
+++ b/setuptools/extension.py
@@ -1,36 +1,177 @@
-from distutils.core import Extension as _Extension
-from setuptools.dist import _get_unpatched
-_Extension = _get_unpatched(_Extension)
-
-try:
-    from Pyrex.Distutils.build_ext import build_ext
-except ImportError:
-    have_pyrex = False
+from __future__ import annotations
+
+import functools
+import re
+from typing import TYPE_CHECKING
+
+from setuptools._path import StrPath
+
+from .monkey import get_unpatched
+
+import distutils.core
+import distutils.errors
+import distutils.extension
+
+
+def _have_cython():
+    """
+    Return True if Cython can be imported.
+    """
+    cython_impl = 'Cython.Distutils.build_ext'
+    try:
+        # from (cython_impl) import build_ext
+        __import__(cython_impl, fromlist=['build_ext']).build_ext
+    except Exception:
+        return False
+    return True
+
+
+# for compatibility
+have_pyrex = _have_cython
+if TYPE_CHECKING:
+    # Work around a mypy issue where type[T] can't be used as a base: https://github.com/python/mypy/issues/10962
+    from distutils.core import Extension as _Extension
 else:
-    have_pyrex = True
+    _Extension = get_unpatched(distutils.core.Extension)
 
 
 class Extension(_Extension):
-    """Extension that uses '.c' files in place of '.pyx' files"""
-
-    if not have_pyrex:
-        # convert .pyx extensions to .c 
-        def __init__(self,*args,**kw):
-            _Extension.__init__(self,*args,**kw)
-            sources = []
-            for s in self.sources:
-                if s.endswith('.pyx'):
-                    sources.append(s[:-3]+'c')
-                else:
-                    sources.append(s)
-            self.sources = sources
+    """
+    Describes a single extension module.
 
-class Library(Extension):
-    """Just like a regular Extension, but built as a library instead"""
+    This means that all source files will be compiled into a single binary file
+    ``.`` (with ```` derived from ``name`` and
+    ```` defined by one of the values in
+    ``importlib.machinery.EXTENSION_SUFFIXES``).
+
+    In the case ``.pyx`` files are passed as ``sources and`` ``Cython`` is **not**
+    installed in the build environment, ``setuptools`` may also try to look for the
+    equivalent ``.cpp`` or ``.c`` files.
+
+    :arg str name:
+      the full name of the extension, including any packages -- ie.
+      *not* a filename or pathname, but Python dotted name
+
+    :arg list[str|os.PathLike[str]] sources:
+      list of source filenames, relative to the distribution root
+      (where the setup script lives), in Unix form (slash-separated)
+      for portability.  Source files may be C, C++, SWIG (.i),
+      platform-specific resource files, or whatever else is recognized
+      by the "build_ext" command as source for a Python extension.
+
+    :keyword list[str] include_dirs:
+      list of directories to search for C/C++ header files (in Unix
+      form for portability)
+
+    :keyword list[tuple[str, str|None]] define_macros:
+      list of macros to define; each macro is defined using a 2-tuple:
+      the first item corresponding to the name of the macro and the second
+      item either a string with its value or None to
+      define it without a particular value (equivalent of "#define
+      FOO" in source or -DFOO on Unix C compiler command line)
+
+    :keyword list[str] undef_macros:
+      list of macros to undefine explicitly
+
+    :keyword list[str] library_dirs:
+      list of directories to search for C/C++ libraries at link time
 
-import sys, distutils.core, distutils.extension
-distutils.core.Extension = Extension
-distutils.extension.Extension = Extension
-if 'distutils.command.build_ext' in sys.modules:
-    sys.modules['distutils.command.build_ext'].Extension = Extension
+    :keyword list[str] libraries:
+      list of library names (not filenames or paths) to link against
 
+    :keyword list[str] runtime_library_dirs:
+      list of directories to search for C/C++ libraries at run time
+      (for shared extensions, this is when the extension is loaded).
+      Setting this will cause an exception during build on Windows
+      platforms.
+
+    :keyword list[str] extra_objects:
+      list of extra files to link with (eg. object files not implied
+      by 'sources', static library that must be explicitly specified,
+      binary resource files, etc.)
+
+    :keyword list[str] extra_compile_args:
+      any extra platform- and compiler-specific information to use
+      when compiling the source files in 'sources'.  For platforms and
+      compilers where "command line" makes sense, this is typically a
+      list of command-line arguments, but for other platforms it could
+      be anything.
+
+    :keyword list[str] extra_link_args:
+      any extra platform- and compiler-specific information to use
+      when linking object files together to create the extension (or
+      to create a new static Python interpreter).  Similar
+      interpretation as for 'extra_compile_args'.
+
+    :keyword list[str] export_symbols:
+      list of symbols to be exported from a shared extension.  Not
+      used on all platforms, and not generally necessary for Python
+      extensions, which typically export exactly one symbol: "init" +
+      extension_name.
+
+    :keyword list[str] swig_opts:
+      any extra options to pass to SWIG if a source file has the .i
+      extension.
+
+    :keyword list[str] depends:
+      list of files that the extension depends on
+
+    :keyword str language:
+      extension language (i.e. "c", "c++", "objc"). Will be detected
+      from the source extensions if not provided.
+
+    :keyword bool optional:
+      specifies that a build failure in the extension should not abort the
+      build process, but simply not install the failing extension.
+
+    :keyword bool py_limited_api:
+      opt-in flag for the usage of :doc:`Python's limited API `.
+
+    :raises setuptools.errors.PlatformError: if ``runtime_library_dirs`` is
+      specified on Windows. (since v63)
+    """
+
+    # These 4 are set and used in setuptools/command/build_ext.py
+    # The lack of a default value and risk of `AttributeError` is purposeful
+    # to avoid people forgetting to call finalize_options if they modify the extension list.
+    # See example/rationale in https://github.com/pypa/setuptools/issues/4529.
+    _full_name: str  #: Private API, internal use only.
+    _links_to_dynamic: bool  #: Private API, internal use only.
+    _needs_stub: bool  #: Private API, internal use only.
+    _file_name: str  #: Private API, internal use only.
+
+    def __init__(
+        self,
+        name: str,
+        sources: list[StrPath],
+        *args,
+        py_limited_api: bool = False,
+        **kw,
+    ) -> None:
+        # The *args is needed for compatibility as calls may use positional
+        # arguments. py_limited_api may be set only via keyword.
+        self.py_limited_api = py_limited_api
+        super().__init__(
+            name,
+            sources,  # type: ignore[arg-type] # Vendored version of setuptools supports PathLike
+            *args,
+            **kw,
+        )
+
+    def _convert_pyx_sources_to_lang(self):
+        """
+        Replace sources with .pyx extensions to sources with the target
+        language extension. This mechanism allows language authors to supply
+        pre-converted sources but to prefer the .pyx sources.
+        """
+        if _have_cython():
+            # the build has Cython, so allow it to compile the .pyx files
+            return
+        lang = self.language or ''
+        target_ext = '.cpp' if lang.lower() == 'c++' else '.c'
+        sub = functools.partial(re.sub, '.pyx$', target_ext)
+        self.sources = list(map(sub, self.sources))
+
+
+class Library(Extension):
+    """Just like a regular Extension, but built as a library instead"""
diff --git a/setuptools/glob.py b/setuptools/glob.py
new file mode 100644
index 0000000000..1dfff2cd50
--- /dev/null
+++ b/setuptools/glob.py
@@ -0,0 +1,185 @@
+"""
+Filename globbing utility. Mostly a copy of `glob` from Python 3.5.
+
+Changes include:
+ * `yield from` and PEP3102 `*` removed.
+ * Hidden files are not ignored.
+"""
+
+from __future__ import annotations
+
+import fnmatch
+import os
+import re
+from collections.abc import Iterable, Iterator
+from typing import TYPE_CHECKING, AnyStr, overload
+
+if TYPE_CHECKING:
+    from _typeshed import BytesPath, StrOrBytesPath, StrPath
+
+__all__ = ["glob", "iglob", "escape"]
+
+
+def glob(pathname: AnyStr, recursive: bool = False) -> list[AnyStr]:
+    """Return a list of paths matching a pathname pattern.
+
+    The pattern may contain simple shell-style wildcards a la
+    fnmatch. However, unlike fnmatch, filenames starting with a
+    dot are special cases that are not matched by '*' and '?'
+    patterns.
+
+    If recursive is true, the pattern '**' will match any files and
+    zero or more directories and subdirectories.
+    """
+    return list(iglob(pathname, recursive=recursive))
+
+
+def iglob(pathname: AnyStr, recursive: bool = False) -> Iterator[AnyStr]:
+    """Return an iterator which yields the paths matching a pathname pattern.
+
+    The pattern may contain simple shell-style wildcards a la
+    fnmatch. However, unlike fnmatch, filenames starting with a
+    dot are special cases that are not matched by '*' and '?'
+    patterns.
+
+    If recursive is true, the pattern '**' will match any files and
+    zero or more directories and subdirectories.
+    """
+    it = _iglob(pathname, recursive)
+    if recursive and _isrecursive(pathname):
+        s = next(it)  # skip empty string
+        assert not s
+    return it
+
+
+def _iglob(pathname: AnyStr, recursive: bool) -> Iterator[AnyStr]:
+    dirname, basename = os.path.split(pathname)
+    glob_in_dir = glob2 if recursive and _isrecursive(basename) else glob1
+
+    if not has_magic(pathname):
+        if basename:
+            if os.path.lexists(pathname):
+                yield pathname
+        else:
+            # Patterns ending with a slash should match only directories
+            if os.path.isdir(dirname):
+                yield pathname
+        return
+
+    if not dirname:
+        yield from glob_in_dir(dirname, basename)
+        return
+    # `os.path.split()` returns the argument itself as a dirname if it is a
+    # drive or UNC path.  Prevent an infinite recursion if a drive or UNC path
+    # contains magic characters (i.e. r'\\?\C:').
+    if dirname != pathname and has_magic(dirname):
+        dirs: Iterable[AnyStr] = _iglob(dirname, recursive)
+    else:
+        dirs = [dirname]
+    if not has_magic(basename):
+        glob_in_dir = glob0
+    for dirname in dirs:
+        for name in glob_in_dir(dirname, basename):
+            yield os.path.join(dirname, name)
+
+
+# These 2 helper functions non-recursively glob inside a literal directory.
+# They return a list of basenames. `glob1` accepts a pattern while `glob0`
+# takes a literal basename (so it only has to check for its existence).
+
+
+@overload
+def glob1(dirname: StrPath, pattern: str) -> list[str]: ...
+@overload
+def glob1(dirname: BytesPath, pattern: bytes) -> list[bytes]: ...
+def glob1(dirname: StrOrBytesPath, pattern: str | bytes) -> list[str] | list[bytes]:
+    if not dirname:
+        if isinstance(pattern, bytes):
+            dirname = os.curdir.encode('ASCII')
+        else:
+            dirname = os.curdir
+    try:
+        names = os.listdir(dirname)
+    except OSError:
+        return []
+    # mypy false-positives: str or bytes type possibility is always kept in sync
+    return fnmatch.filter(names, pattern)  # type: ignore[type-var, return-value]
+
+
+def glob0(dirname, basename):
+    if not basename:
+        # `os.path.split()` returns an empty basename for paths ending with a
+        # directory separator.  'q*x/' should match only directories.
+        if os.path.isdir(dirname):
+            return [basename]
+    else:
+        if os.path.lexists(os.path.join(dirname, basename)):
+            return [basename]
+    return []
+
+
+# This helper function recursively yields relative pathnames inside a literal
+# directory.
+
+
+@overload
+def glob2(dirname: StrPath, pattern: str) -> Iterator[str]: ...
+@overload
+def glob2(dirname: BytesPath, pattern: bytes) -> Iterator[bytes]: ...
+def glob2(dirname: StrOrBytesPath, pattern: str | bytes) -> Iterator[str | bytes]:
+    assert _isrecursive(pattern)
+    yield pattern[:0]
+    yield from _rlistdir(dirname)
+
+
+# Recursively yields relative pathnames inside a literal directory.
+@overload
+def _rlistdir(dirname: StrPath) -> Iterator[str]: ...
+@overload
+def _rlistdir(dirname: BytesPath) -> Iterator[bytes]: ...
+def _rlistdir(dirname: StrOrBytesPath) -> Iterator[str | bytes]:
+    if not dirname:
+        if isinstance(dirname, bytes):
+            dirname = os.curdir.encode('ASCII')
+        else:
+            dirname = os.curdir
+    try:
+        names = os.listdir(dirname)
+    except OSError:
+        return
+    for x in names:
+        yield x
+        # mypy false-positives: str or bytes type possibility is always kept in sync
+        path = os.path.join(dirname, x) if dirname else x  # type: ignore[arg-type]
+        for y in _rlistdir(path):
+            yield os.path.join(x, y)  # type: ignore[arg-type]
+
+
+magic_check = re.compile('([*?[])')
+magic_check_bytes = re.compile(b'([*?[])')
+
+
+def has_magic(s: str | bytes) -> bool:
+    if isinstance(s, bytes):
+        return magic_check_bytes.search(s) is not None
+    else:
+        return magic_check.search(s) is not None
+
+
+def _isrecursive(pattern: str | bytes) -> bool:
+    if isinstance(pattern, bytes):
+        return pattern == b'**'
+    else:
+        return pattern == '**'
+
+
+def escape(pathname):
+    """Escape all special characters."""
+    # Escaping is done by wrapping any of "*?[" between square brackets.
+    # Metacharacters do not work in the drive part and shouldn't be escaped.
+    drive, pathname = os.path.splitdrive(pathname)
+    if isinstance(pathname, bytes):
+        pathname = magic_check_bytes.sub(rb'[\1]', pathname)
+    else:
+        pathname = magic_check.sub(r'[\1]', pathname)
+    return drive + pathname
diff --git a/setuptools/gui-32.exe b/setuptools/gui-32.exe
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diff --git a/setuptools/gui-arm64.exe b/setuptools/gui-arm64.exe
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diff --git a/setuptools/gui.exe b/setuptools/gui.exe
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diff --git a/setuptools/installer.py b/setuptools/installer.py
new file mode 100644
index 0000000000..64bc2def07
--- /dev/null
+++ b/setuptools/installer.py
@@ -0,0 +1,150 @@
+from __future__ import annotations
+
+import glob
+import os
+import subprocess
+import sys
+import tempfile
+from functools import partial
+
+from pkg_resources import Distribution
+
+from . import _reqs
+from ._reqs import _StrOrIter
+from .warnings import SetuptoolsDeprecationWarning
+from .wheel import Wheel
+
+from distutils import log
+from distutils.errors import DistutilsError
+
+
+def _fixup_find_links(find_links):
+    """Ensure find-links option end-up being a list of strings."""
+    if isinstance(find_links, str):
+        return find_links.split()
+    assert isinstance(find_links, (tuple, list))
+    return find_links
+
+
+def fetch_build_egg(dist, req):
+    """Fetch an egg needed for building.
+
+    Use pip/wheel to fetch/build a wheel."""
+    _DeprecatedInstaller.emit()
+    _warn_wheel_not_available(dist)
+    return _fetch_build_egg_no_warn(dist, req)
+
+
+def _fetch_build_eggs(dist, requires: _StrOrIter) -> list[Distribution]:
+    import pkg_resources  # Delay import to avoid unnecessary side-effects
+
+    _DeprecatedInstaller.emit(stacklevel=3)
+    _warn_wheel_not_available(dist)
+
+    resolved_dists = pkg_resources.working_set.resolve(
+        _reqs.parse(requires, pkg_resources.Requirement),  # required for compatibility
+        installer=partial(_fetch_build_egg_no_warn, dist),  # avoid warning twice
+        replace_conflicting=True,
+    )
+    for dist in resolved_dists:
+        pkg_resources.working_set.add(dist, replace=True)
+    return resolved_dists
+
+
+def _fetch_build_egg_no_warn(dist, req):  # noqa: C901  # is too complex (16)  # FIXME
+    import pkg_resources  # Delay import to avoid unnecessary side-effects
+
+    # Ignore environment markers; if supplied, it is required.
+    req = strip_marker(req)
+    # Take easy_install options into account, but do not override relevant
+    # pip environment variables (like PIP_INDEX_URL or PIP_QUIET); they'll
+    # take precedence.
+    opts = dist.get_option_dict('easy_install')
+    if 'allow_hosts' in opts:
+        raise DistutilsError(
+            'the `allow-hosts` option is not supported '
+            'when using pip to install requirements.'
+        )
+    quiet = 'PIP_QUIET' not in os.environ and 'PIP_VERBOSE' not in os.environ
+    if 'PIP_INDEX_URL' in os.environ:
+        index_url = None
+    elif 'index_url' in opts:
+        index_url = opts['index_url'][1]
+    else:
+        index_url = None
+    find_links = (
+        _fixup_find_links(opts['find_links'][1])[:] if 'find_links' in opts else []
+    )
+    if dist.dependency_links:
+        find_links.extend(dist.dependency_links)
+    eggs_dir = os.path.realpath(dist.get_egg_cache_dir())
+    environment = pkg_resources.Environment()
+    for egg_dist in pkg_resources.find_distributions(eggs_dir):
+        if egg_dist in req and environment.can_add(egg_dist):
+            return egg_dist
+    with tempfile.TemporaryDirectory() as tmpdir:
+        cmd = [
+            sys.executable,
+            '-m',
+            'pip',
+            '--disable-pip-version-check',
+            'wheel',
+            '--no-deps',
+            '-w',
+            tmpdir,
+        ]
+        if quiet:
+            cmd.append('--quiet')
+        if index_url is not None:
+            cmd.extend(('--index-url', index_url))
+        for link in find_links or []:
+            cmd.extend(('--find-links', link))
+        # If requirement is a PEP 508 direct URL, directly pass
+        # the URL to pip, as `req @ url` does not work on the
+        # command line.
+        cmd.append(req.url or str(req))
+        try:
+            subprocess.check_call(cmd)
+        except subprocess.CalledProcessError as e:
+            raise DistutilsError(str(e)) from e
+        wheel = Wheel(glob.glob(os.path.join(tmpdir, '*.whl'))[0])
+        dist_location = os.path.join(eggs_dir, wheel.egg_name())
+        wheel.install_as_egg(dist_location)
+        dist_metadata = pkg_resources.PathMetadata(
+            dist_location, os.path.join(dist_location, 'EGG-INFO')
+        )
+        return pkg_resources.Distribution.from_filename(
+            dist_location, metadata=dist_metadata
+        )
+
+
+def strip_marker(req):
+    """
+    Return a new requirement without the environment marker to avoid
+    calling pip with something like `babel; extra == "i18n"`, which
+    would always be ignored.
+    """
+    import pkg_resources  # Delay import to avoid unnecessary side-effects
+
+    # create a copy to avoid mutating the input
+    req = pkg_resources.Requirement.parse(str(req))
+    req.marker = None
+    return req
+
+
+def _warn_wheel_not_available(dist):
+    import pkg_resources  # Delay import to avoid unnecessary side-effects
+
+    try:
+        pkg_resources.get_distribution('wheel')
+    except pkg_resources.DistributionNotFound:
+        dist.announce('WARNING: The wheel package is not available.', log.WARN)
+
+
+class _DeprecatedInstaller(SetuptoolsDeprecationWarning):
+    _SUMMARY = "setuptools.installer and fetch_build_eggs are deprecated."
+    _DETAILS = """
+    Requirements should be satisfied by a PEP 517 installer.
+    If you are using pip, you can try `pip install --use-pep517`.
+    """
+    # _DUE_DATE not decided yet
diff --git a/setuptools/launch.py b/setuptools/launch.py
new file mode 100644
index 0000000000..0d162647d5
--- /dev/null
+++ b/setuptools/launch.py
@@ -0,0 +1,36 @@
+"""
+Launch the Python script on the command line after
+setuptools is bootstrapped via import.
+"""
+
+# Note that setuptools gets imported implicitly by the
+# invocation of this script using python -m setuptools.launch
+
+import sys
+import tokenize
+
+
+def run() -> None:
+    """
+    Run the script in sys.argv[1] as if it had
+    been invoked naturally.
+    """
+    __builtins__
+    script_name = sys.argv[1]
+    namespace = dict(
+        __file__=script_name,
+        __name__='__main__',
+        __doc__=None,
+    )
+    sys.argv[:] = sys.argv[1:]
+
+    open_ = getattr(tokenize, 'open', open)
+    with open_(script_name) as fid:
+        script = fid.read()
+    norm_script = script.replace('\\r\\n', '\\n')
+    code = compile(norm_script, script_name, 'exec')
+    exec(code, namespace)
+
+
+if __name__ == '__main__':
+    run()
diff --git a/setuptools/logging.py b/setuptools/logging.py
new file mode 100644
index 0000000000..532da899f7
--- /dev/null
+++ b/setuptools/logging.py
@@ -0,0 +1,40 @@
+import inspect
+import logging
+import sys
+
+from . import monkey
+
+import distutils.log
+
+
+def _not_warning(record):
+    return record.levelno < logging.WARNING
+
+
+def configure() -> None:
+    """
+    Configure logging to emit warning and above to stderr
+    and everything else to stdout. This behavior is provided
+    for compatibility with distutils.log but may change in
+    the future.
+    """
+    err_handler = logging.StreamHandler()
+    err_handler.setLevel(logging.WARNING)
+    out_handler = logging.StreamHandler(sys.stdout)
+    out_handler.addFilter(_not_warning)
+    handlers = err_handler, out_handler
+    logging.basicConfig(
+        format="{message}", style='{', handlers=handlers, level=logging.DEBUG
+    )
+    if inspect.ismodule(distutils.dist.log):
+        monkey.patch_func(set_threshold, distutils.log, 'set_threshold')
+        # For some reason `distutils.log` module is getting cached in `distutils.dist`
+        # and then loaded again when patched,
+        # implying: id(distutils.log) != id(distutils.dist.log).
+        # Make sure the same module object is used everywhere:
+        distutils.dist.log = distutils.log
+
+
+def set_threshold(level: int) -> int:
+    logging.root.setLevel(level * 10)
+    return set_threshold.unpatched(level)
diff --git a/setuptools/modified.py b/setuptools/modified.py
new file mode 100644
index 0000000000..6ba02fab68
--- /dev/null
+++ b/setuptools/modified.py
@@ -0,0 +1,18 @@
+try:
+    # Ensure a DistutilsError raised by these methods is the same as distutils.errors.DistutilsError
+    from distutils._modified import (
+        newer,
+        newer_group,
+        newer_pairwise,
+        newer_pairwise_group,
+    )
+except ImportError:
+    # fallback for SETUPTOOLS_USE_DISTUTILS=stdlib, because _modified never existed in stdlib
+    from ._distutils._modified import (
+        newer,
+        newer_group,
+        newer_pairwise,
+        newer_pairwise_group,
+    )
+
+__all__ = ['newer', 'newer_pairwise', 'newer_group', 'newer_pairwise_group']
diff --git a/setuptools/monkey.py b/setuptools/monkey.py
new file mode 100644
index 0000000000..6ad1abac29
--- /dev/null
+++ b/setuptools/monkey.py
@@ -0,0 +1,126 @@
+"""
+Monkey patching of distutils.
+"""
+
+from __future__ import annotations
+
+import inspect
+import platform
+import sys
+import types
+from typing import TypeVar, cast, overload
+
+import distutils.filelist
+
+_T = TypeVar("_T")
+_UnpatchT = TypeVar("_UnpatchT", type, types.FunctionType)
+
+
+__all__: list[str] = []
+"""
+Everything is private. Contact the project team
+if you think you need this functionality.
+"""
+
+
+def _get_mro(cls):
+    """
+    Returns the bases classes for cls sorted by the MRO.
+
+    Works around an issue on Jython where inspect.getmro will not return all
+    base classes if multiple classes share the same name. Instead, this
+    function will return a tuple containing the class itself, and the contents
+    of cls.__bases__. See https://github.com/pypa/setuptools/issues/1024.
+    """
+    if platform.python_implementation() == "Jython":
+        return (cls,) + cls.__bases__
+    return inspect.getmro(cls)
+
+
+@overload
+def get_unpatched(item: _UnpatchT) -> _UnpatchT: ...
+@overload
+def get_unpatched(item: object) -> None: ...
+def get_unpatched(
+    item: type | types.FunctionType | object,
+) -> type | types.FunctionType | None:
+    if isinstance(item, type):
+        return get_unpatched_class(item)
+    if isinstance(item, types.FunctionType):
+        return get_unpatched_function(item)
+    return None
+
+
+def get_unpatched_class(cls: type[_T]) -> type[_T]:
+    """Protect against re-patching the distutils if reloaded
+
+    Also ensures that no other distutils extension monkeypatched the distutils
+    first.
+    """
+    external_bases = (
+        cast(type[_T], cls)
+        for cls in _get_mro(cls)
+        if not cls.__module__.startswith('setuptools')
+    )
+    base = next(external_bases)
+    if not base.__module__.startswith('distutils'):
+        msg = f"distutils has already been patched by {cls!r}"
+        raise AssertionError(msg)
+    return base
+
+
+def patch_all():
+    import setuptools
+
+    # we can't patch distutils.cmd, alas
+    distutils.core.Command = setuptools.Command  # type: ignore[misc,assignment] # monkeypatching
+
+    _patch_distribution_metadata()
+
+    # Install Distribution throughout the distutils
+    for module in distutils.dist, distutils.core, distutils.cmd:
+        module.Distribution = setuptools.dist.Distribution
+
+    # Install the patched Extension
+    distutils.core.Extension = setuptools.extension.Extension  # type: ignore[misc,assignment] # monkeypatching
+    distutils.extension.Extension = setuptools.extension.Extension  # type: ignore[misc,assignment] # monkeypatching
+    if 'distutils.command.build_ext' in sys.modules:
+        sys.modules[
+            'distutils.command.build_ext'
+        ].Extension = setuptools.extension.Extension
+
+
+def _patch_distribution_metadata():
+    from . import _core_metadata
+
+    """Patch write_pkg_file and read_pkg_file for higher metadata standards"""
+    for attr in (
+        'write_pkg_info',
+        'write_pkg_file',
+        'read_pkg_file',
+        'get_metadata_version',
+        'get_fullname',
+    ):
+        new_val = getattr(_core_metadata, attr)
+        setattr(distutils.dist.DistributionMetadata, attr, new_val)
+
+
+def patch_func(replacement, target_mod, func_name):
+    """
+    Patch func_name in target_mod with replacement
+
+    Important - original must be resolved by name to avoid
+    patching an already patched function.
+    """
+    original = getattr(target_mod, func_name)
+
+    # set the 'unpatched' attribute on the replacement to
+    # point to the original.
+    vars(replacement).setdefault('unpatched', original)
+
+    # replace the function in the original module
+    setattr(target_mod, func_name, replacement)
+
+
+def get_unpatched_function(candidate):
+    return candidate.unpatched
diff --git a/setuptools/msvc.py b/setuptools/msvc.py
new file mode 100644
index 0000000000..313a781ae0
--- /dev/null
+++ b/setuptools/msvc.py
@@ -0,0 +1,1536 @@
+"""
+Environment info about Microsoft Compilers.
+
+>>> getfixture('windows_only')
+>>> ei = EnvironmentInfo('amd64')
+"""
+
+from __future__ import annotations
+
+import contextlib
+import itertools
+import json
+import os
+import os.path
+import platform
+from typing import TYPE_CHECKING, TypedDict
+
+from more_itertools import unique_everseen
+
+import distutils.errors
+
+if TYPE_CHECKING:
+    from typing_extensions import LiteralString, NotRequired
+
+# https://github.com/python/mypy/issues/8166
+if not TYPE_CHECKING and platform.system() == 'Windows':
+    import winreg
+    from os import environ
+else:
+    # Mock winreg and environ so the module can be imported on this platform.
+
+    class winreg:
+        HKEY_USERS = None
+        HKEY_CURRENT_USER = None
+        HKEY_LOCAL_MACHINE = None
+        HKEY_CLASSES_ROOT = None
+
+    environ: dict[str, str] = dict()
+
+
+class PlatformInfo:
+    """
+    Current and Target Architectures information.
+
+    Parameters
+    ----------
+    arch: str
+        Target architecture.
+    """
+
+    current_cpu = environ.get('processor_architecture', '').lower()
+
+    def __init__(self, arch) -> None:
+        self.arch = arch.lower().replace('x64', 'amd64')
+
+    @property
+    def target_cpu(self):
+        """
+        Return Target CPU architecture.
+
+        Return
+        ------
+        str
+            Target CPU
+        """
+        return self.arch[self.arch.find('_') + 1 :]
+
+    def target_is_x86(self):
+        """
+        Return True if target CPU is x86 32 bits..
+
+        Return
+        ------
+        bool
+            CPU is x86 32 bits
+        """
+        return self.target_cpu == 'x86'
+
+    def current_is_x86(self):
+        """
+        Return True if current CPU is x86 32 bits..
+
+        Return
+        ------
+        bool
+            CPU is x86 32 bits
+        """
+        return self.current_cpu == 'x86'
+
+    def current_dir(self, hidex86=False, x64=False) -> str:
+        """
+        Current platform specific subfolder.
+
+        Parameters
+        ----------
+        hidex86: bool
+            return '' and not '\x86' if architecture is x86.
+        x64: bool
+            return '\x64' and not '\amd64' if architecture is amd64.
+
+        Return
+        ------
+        str
+            subfolder: '\target', or '' (see hidex86 parameter)
+        """
+        return (
+            ''
+            if (self.current_cpu == 'x86' and hidex86)
+            else r'\x64'
+            if (self.current_cpu == 'amd64' and x64)
+            else rf'\{self.current_cpu}'
+        )
+
+    def target_dir(self, hidex86=False, x64=False) -> str:
+        r"""
+        Target platform specific subfolder.
+
+        Parameters
+        ----------
+        hidex86: bool
+            return '' and not '\x86' if architecture is x86.
+        x64: bool
+            return '\x64' and not '\amd64' if architecture is amd64.
+
+        Return
+        ------
+        str
+            subfolder: '\current', or '' (see hidex86 parameter)
+        """
+        return (
+            ''
+            if (self.target_cpu == 'x86' and hidex86)
+            else r'\x64'
+            if (self.target_cpu == 'amd64' and x64)
+            else rf'\{self.target_cpu}'
+        )
+
+    def cross_dir(self, forcex86=False):
+        r"""
+        Cross platform specific subfolder.
+
+        Parameters
+        ----------
+        forcex86: bool
+            Use 'x86' as current architecture even if current architecture is
+            not x86.
+
+        Return
+        ------
+        str
+            subfolder: '' if target architecture is current architecture,
+            '\current_target' if not.
+        """
+        current = 'x86' if forcex86 else self.current_cpu
+        return (
+            ''
+            if self.target_cpu == current
+            else self.target_dir().replace('\\', f'\\{current}_')
+        )
+
+
+class RegistryInfo:
+    """
+    Microsoft Visual Studio related registry information.
+
+    Parameters
+    ----------
+    platform_info: PlatformInfo
+        "PlatformInfo" instance.
+    """
+
+    HKEYS = (
+        winreg.HKEY_USERS,
+        winreg.HKEY_CURRENT_USER,
+        winreg.HKEY_LOCAL_MACHINE,
+        winreg.HKEY_CLASSES_ROOT,
+    )
+
+    def __init__(self, platform_info) -> None:
+        self.pi = platform_info
+
+    @property
+    def visualstudio(self) -> str:
+        """
+        Microsoft Visual Studio root registry key.
+
+        Return
+        ------
+        str
+            Registry key
+        """
+        return 'VisualStudio'
+
+    @property
+    def sxs(self):
+        """
+        Microsoft Visual Studio SxS registry key.
+
+        Return
+        ------
+        str
+            Registry key
+        """
+        return os.path.join(self.visualstudio, 'SxS')
+
+    @property
+    def vc(self):
+        """
+        Microsoft Visual C++ VC7 registry key.
+
+        Return
+        ------
+        str
+            Registry key
+        """
+        return os.path.join(self.sxs, 'VC7')
+
+    @property
+    def vs(self):
+        """
+        Microsoft Visual Studio VS7 registry key.
+
+        Return
+        ------
+        str
+            Registry key
+        """
+        return os.path.join(self.sxs, 'VS7')
+
+    @property
+    def vc_for_python(self) -> str:
+        """
+        Microsoft Visual C++ for Python registry key.
+
+        Return
+        ------
+        str
+            Registry key
+        """
+        return r'DevDiv\VCForPython'
+
+    @property
+    def microsoft_sdk(self) -> str:
+        """
+        Microsoft SDK registry key.
+
+        Return
+        ------
+        str
+            Registry key
+        """
+        return 'Microsoft SDKs'
+
+    @property
+    def windows_sdk(self):
+        """
+        Microsoft Windows/Platform SDK registry key.
+
+        Return
+        ------
+        str
+            Registry key
+        """
+        return os.path.join(self.microsoft_sdk, 'Windows')
+
+    @property
+    def netfx_sdk(self):
+        """
+        Microsoft .NET Framework SDK registry key.
+
+        Return
+        ------
+        str
+            Registry key
+        """
+        return os.path.join(self.microsoft_sdk, 'NETFXSDK')
+
+    @property
+    def windows_kits_roots(self) -> str:
+        """
+        Microsoft Windows Kits Roots registry key.
+
+        Return
+        ------
+        str
+            Registry key
+        """
+        return r'Windows Kits\Installed Roots'
+
+    def microsoft(self, key, x86=False):
+        """
+        Return key in Microsoft software registry.
+
+        Parameters
+        ----------
+        key: str
+            Registry key path where look.
+        x86: str
+            Force x86 software registry.
+
+        Return
+        ------
+        str
+            Registry key
+        """
+        node64 = '' if self.pi.current_is_x86() or x86 else 'Wow6432Node'
+        return os.path.join('Software', node64, 'Microsoft', key)
+
+    def lookup(self, key, name):
+        """
+        Look for values in registry in Microsoft software registry.
+
+        Parameters
+        ----------
+        key: str
+            Registry key path where look.
+        name: str
+            Value name to find.
+
+        Return
+        ------
+        str
+            value
+        """
+        key_read = winreg.KEY_READ
+        openkey = winreg.OpenKey
+        closekey = winreg.CloseKey
+        ms = self.microsoft
+        for hkey in self.HKEYS:
+            bkey = None
+            try:
+                bkey = openkey(hkey, ms(key), 0, key_read)
+            except OSError:
+                if not self.pi.current_is_x86():
+                    try:
+                        bkey = openkey(hkey, ms(key, True), 0, key_read)
+                    except OSError:
+                        continue
+                else:
+                    continue
+            try:
+                return winreg.QueryValueEx(bkey, name)[0]
+            except OSError:
+                pass
+            finally:
+                if bkey:
+                    closekey(bkey)
+        return None
+
+
+class SystemInfo:
+    """
+    Microsoft Windows and Visual Studio related system information.
+
+    Parameters
+    ----------
+    registry_info: RegistryInfo
+        "RegistryInfo" instance.
+    vc_ver: float
+        Required Microsoft Visual C++ version.
+    """
+
+    # Variables and properties in this class use originals CamelCase variables
+    # names from Microsoft source files for more easy comparison.
+    WinDir = environ.get('WinDir', '')
+    ProgramFiles = environ.get('ProgramFiles', '')
+    ProgramFilesx86 = environ.get('ProgramFiles(x86)', ProgramFiles)
+
+    def __init__(self, registry_info, vc_ver=None) -> None:
+        self.ri = registry_info
+        self.pi = self.ri.pi
+
+        self.known_vs_paths = self.find_programdata_vs_vers()
+
+        # Except for VS15+, VC version is aligned with VS version
+        self.vs_ver = self.vc_ver = vc_ver or self._find_latest_available_vs_ver()
+
+    def _find_latest_available_vs_ver(self):
+        """
+        Find the latest VC version
+
+        Return
+        ------
+        float
+            version
+        """
+        reg_vc_vers = self.find_reg_vs_vers()
+
+        if not (reg_vc_vers or self.known_vs_paths):
+            raise distutils.errors.DistutilsPlatformError(
+                'No Microsoft Visual C++ version found'
+            )
+
+        vc_vers = set(reg_vc_vers)
+        vc_vers.update(self.known_vs_paths)
+        return sorted(vc_vers)[-1]
+
+    def find_reg_vs_vers(self):
+        """
+        Find Microsoft Visual Studio versions available in registry.
+
+        Return
+        ------
+        list of float
+            Versions
+        """
+        ms = self.ri.microsoft
+        vckeys = (self.ri.vc, self.ri.vc_for_python, self.ri.vs)
+        vs_vers = []
+        for hkey, key in itertools.product(self.ri.HKEYS, vckeys):
+            try:
+                bkey = winreg.OpenKey(hkey, ms(key), 0, winreg.KEY_READ)
+            except OSError:
+                continue
+            with bkey:
+                subkeys, values, _ = winreg.QueryInfoKey(bkey)
+                for i in range(values):
+                    with contextlib.suppress(ValueError):
+                        ver = float(winreg.EnumValue(bkey, i)[0])
+                        if ver not in vs_vers:
+                            vs_vers.append(ver)
+                for i in range(subkeys):
+                    with contextlib.suppress(ValueError):
+                        ver = float(winreg.EnumKey(bkey, i))
+                        if ver not in vs_vers:
+                            vs_vers.append(ver)
+        return sorted(vs_vers)
+
+    def find_programdata_vs_vers(self) -> dict[float, str]:
+        r"""
+        Find Visual studio 2017+ versions from information in
+        "C:\ProgramData\Microsoft\VisualStudio\Packages\_Instances".
+
+        Return
+        ------
+        dict
+            float version as key, path as value.
+        """
+        vs_versions: dict[float, str] = {}
+        instances_dir = r'C:\ProgramData\Microsoft\VisualStudio\Packages\_Instances'
+
+        try:
+            hashed_names = os.listdir(instances_dir)
+
+        except OSError:
+            # Directory not exists with all Visual Studio versions
+            return vs_versions
+
+        for name in hashed_names:
+            try:
+                # Get VS installation path from "state.json" file
+                state_path = os.path.join(instances_dir, name, 'state.json')
+                with open(state_path, 'rt', encoding='utf-8') as state_file:
+                    state = json.load(state_file)
+                vs_path = state['installationPath']
+
+                # Raises OSError if this VS installation does not contain VC
+                os.listdir(os.path.join(vs_path, r'VC\Tools\MSVC'))
+
+                # Store version and path
+                vs_versions[self._as_float_version(state['installationVersion'])] = (
+                    vs_path
+                )
+
+            except (OSError, KeyError):
+                # Skip if "state.json" file is missing or bad format
+                continue
+
+        return vs_versions
+
+    @staticmethod
+    def _as_float_version(version):
+        """
+        Return a string version as a simplified float version (major.minor)
+
+        Parameters
+        ----------
+        version: str
+            Version.
+
+        Return
+        ------
+        float
+            version
+        """
+        return float('.'.join(version.split('.')[:2]))
+
+    @property
+    def VSInstallDir(self):
+        """
+        Microsoft Visual Studio directory.
+
+        Return
+        ------
+        str
+            path
+        """
+        # Default path
+        default = os.path.join(
+            self.ProgramFilesx86, f'Microsoft Visual Studio {self.vs_ver:0.1f}'
+        )
+
+        # Try to get path from registry, if fail use default path
+        return self.ri.lookup(self.ri.vs, f'{self.vs_ver:0.1f}') or default
+
+    @property
+    def VCInstallDir(self):
+        """
+        Microsoft Visual C++ directory.
+
+        Return
+        ------
+        str
+            path
+        """
+        path = self._guess_vc() or self._guess_vc_legacy()
+
+        if not os.path.isdir(path):
+            msg = 'Microsoft Visual C++ directory not found'
+            raise distutils.errors.DistutilsPlatformError(msg)
+
+        return path
+
+    def _guess_vc(self):
+        """
+        Locate Visual C++ for VS2017+.
+
+        Return
+        ------
+        str
+            path
+        """
+        if self.vs_ver <= 14.0:
+            return ''
+
+        try:
+            # First search in known VS paths
+            vs_dir = self.known_vs_paths[self.vs_ver]
+        except KeyError:
+            # Else, search with path from registry
+            vs_dir = self.VSInstallDir
+
+        guess_vc = os.path.join(vs_dir, r'VC\Tools\MSVC')
+
+        # Subdir with VC exact version as name
+        try:
+            # Update the VC version with real one instead of VS version
+            vc_ver = os.listdir(guess_vc)[-1]
+            self.vc_ver = self._as_float_version(vc_ver)
+            return os.path.join(guess_vc, vc_ver)
+        except (OSError, IndexError):
+            return ''
+
+    def _guess_vc_legacy(self):
+        """
+        Locate Visual C++ for versions prior to 2017.
+
+        Return
+        ------
+        str
+            path
+        """
+        default = os.path.join(
+            self.ProgramFilesx86,
+            rf'Microsoft Visual Studio {self.vs_ver:0.1f}\VC',
+        )
+
+        # Try to get "VC++ for Python" path from registry as default path
+        reg_path = os.path.join(self.ri.vc_for_python, f'{self.vs_ver:0.1f}')
+        python_vc = self.ri.lookup(reg_path, 'installdir')
+        default_vc = os.path.join(python_vc, 'VC') if python_vc else default
+
+        # Try to get path from registry, if fail use default path
+        return self.ri.lookup(self.ri.vc, f'{self.vs_ver:0.1f}') or default_vc
+
+    @property
+    def WindowsSdkVersion(self) -> tuple[LiteralString, ...]:
+        """
+        Microsoft Windows SDK versions for specified MSVC++ version.
+
+        Return
+        ------
+        tuple of str
+            versions
+        """
+        if self.vs_ver <= 9.0:
+            return '7.0', '6.1', '6.0a'
+        elif self.vs_ver == 10.0:
+            return '7.1', '7.0a'
+        elif self.vs_ver == 11.0:
+            return '8.0', '8.0a'
+        elif self.vs_ver == 12.0:
+            return '8.1', '8.1a'
+        elif self.vs_ver >= 14.0:
+            return '10.0', '8.1'
+        return ()
+
+    @property
+    def WindowsSdkLastVersion(self):
+        """
+        Microsoft Windows SDK last version.
+
+        Return
+        ------
+        str
+            version
+        """
+        return self._use_last_dir_name(os.path.join(self.WindowsSdkDir, 'lib'))
+
+    @property
+    def WindowsSdkDir(self) -> str | None:  # noqa: C901  # is too complex (12)  # FIXME
+        """
+        Microsoft Windows SDK directory.
+
+        Return
+        ------
+        str
+            path
+        """
+        sdkdir: str | None = ''
+        for ver in self.WindowsSdkVersion:
+            # Try to get it from registry
+            loc = os.path.join(self.ri.windows_sdk, f'v{ver}')
+            sdkdir = self.ri.lookup(loc, 'installationfolder')
+            if sdkdir:
+                break
+        if not sdkdir or not os.path.isdir(sdkdir):
+            # Try to get "VC++ for Python" version from registry
+            path = os.path.join(self.ri.vc_for_python, f'{self.vc_ver:0.1f}')
+            install_base = self.ri.lookup(path, 'installdir')
+            if install_base:
+                sdkdir = os.path.join(install_base, 'WinSDK')
+        if not sdkdir or not os.path.isdir(sdkdir):
+            # If fail, use default new path
+            for ver in self.WindowsSdkVersion:
+                intver = ver[: ver.rfind('.')]
+                path = rf'Microsoft SDKs\Windows Kits\{intver}'
+                d = os.path.join(self.ProgramFiles, path)
+                if os.path.isdir(d):
+                    sdkdir = d
+        if not sdkdir or not os.path.isdir(sdkdir):
+            # If fail, use default old path
+            for ver in self.WindowsSdkVersion:
+                path = rf'Microsoft SDKs\Windows\v{ver}'
+                d = os.path.join(self.ProgramFiles, path)
+                if os.path.isdir(d):
+                    sdkdir = d
+        if not sdkdir:
+            # If fail, use Platform SDK
+            sdkdir = os.path.join(self.VCInstallDir, 'PlatformSDK')
+        return sdkdir
+
+    @property
+    def WindowsSDKExecutablePath(self):
+        """
+        Microsoft Windows SDK executable directory.
+
+        Return
+        ------
+        str
+            path
+        """
+        # Find WinSDK NetFx Tools registry dir name
+        if self.vs_ver <= 11.0:
+            netfxver = 35
+            arch = ''
+        else:
+            netfxver = 40
+            hidex86 = True if self.vs_ver <= 12.0 else False
+            arch = self.pi.current_dir(x64=True, hidex86=hidex86).replace('\\', '-')
+        fx = f'WinSDK-NetFx{netfxver}Tools{arch}'
+
+        # list all possibles registry paths
+        regpaths = []
+        if self.vs_ver >= 14.0:
+            for ver in self.NetFxSdkVersion:
+                regpaths += [os.path.join(self.ri.netfx_sdk, ver, fx)]
+
+        for ver in self.WindowsSdkVersion:
+            regpaths += [os.path.join(self.ri.windows_sdk, f'v{ver}A', fx)]
+
+        # Return installation folder from the more recent path
+        for path in regpaths:
+            execpath = self.ri.lookup(path, 'installationfolder')
+            if execpath:
+                return execpath
+
+        return None
+
+    @property
+    def FSharpInstallDir(self):
+        """
+        Microsoft Visual F# directory.
+
+        Return
+        ------
+        str
+            path
+        """
+        path = os.path.join(self.ri.visualstudio, rf'{self.vs_ver:0.1f}\Setup\F#')
+        return self.ri.lookup(path, 'productdir') or ''
+
+    @property
+    def UniversalCRTSdkDir(self):
+        """
+        Microsoft Universal CRT SDK directory.
+
+        Return
+        ------
+        str
+            path
+        """
+        # Set Kit Roots versions for specified MSVC++ version
+        vers = ('10', '81') if self.vs_ver >= 14.0 else ()
+
+        # Find path of the more recent Kit
+        for ver in vers:
+            sdkdir = self.ri.lookup(self.ri.windows_kits_roots, f'kitsroot{ver}')
+            if sdkdir:
+                return sdkdir or ''
+
+        return None
+
+    @property
+    def UniversalCRTSdkLastVersion(self):
+        """
+        Microsoft Universal C Runtime SDK last version.
+
+        Return
+        ------
+        str
+            version
+        """
+        return self._use_last_dir_name(os.path.join(self.UniversalCRTSdkDir, 'lib'))
+
+    @property
+    def NetFxSdkVersion(self):
+        """
+        Microsoft .NET Framework SDK versions.
+
+        Return
+        ------
+        tuple of str
+            versions
+        """
+        # Set FxSdk versions for specified VS version
+        return (
+            ('4.7.2', '4.7.1', '4.7', '4.6.2', '4.6.1', '4.6', '4.5.2', '4.5.1', '4.5')
+            if self.vs_ver >= 14.0
+            else ()
+        )
+
+    @property
+    def NetFxSdkDir(self):
+        """
+        Microsoft .NET Framework SDK directory.
+
+        Return
+        ------
+        str
+            path
+        """
+        sdkdir = ''
+        for ver in self.NetFxSdkVersion:
+            loc = os.path.join(self.ri.netfx_sdk, ver)
+            sdkdir = self.ri.lookup(loc, 'kitsinstallationfolder')
+            if sdkdir:
+                break
+        return sdkdir
+
+    @property
+    def FrameworkDir32(self):
+        """
+        Microsoft .NET Framework 32bit directory.
+
+        Return
+        ------
+        str
+            path
+        """
+        # Default path
+        guess_fw = os.path.join(self.WinDir, r'Microsoft.NET\Framework')
+
+        # Try to get path from registry, if fail use default path
+        return self.ri.lookup(self.ri.vc, 'frameworkdir32') or guess_fw
+
+    @property
+    def FrameworkDir64(self):
+        """
+        Microsoft .NET Framework 64bit directory.
+
+        Return
+        ------
+        str
+            path
+        """
+        # Default path
+        guess_fw = os.path.join(self.WinDir, r'Microsoft.NET\Framework64')
+
+        # Try to get path from registry, if fail use default path
+        return self.ri.lookup(self.ri.vc, 'frameworkdir64') or guess_fw
+
+    @property
+    def FrameworkVersion32(self) -> tuple[str, ...]:
+        """
+        Microsoft .NET Framework 32bit versions.
+
+        Return
+        ------
+        tuple of str
+            versions
+        """
+        return self._find_dot_net_versions(32)
+
+    @property
+    def FrameworkVersion64(self) -> tuple[str, ...]:
+        """
+        Microsoft .NET Framework 64bit versions.
+
+        Return
+        ------
+        tuple of str
+            versions
+        """
+        return self._find_dot_net_versions(64)
+
+    def _find_dot_net_versions(self, bits) -> tuple[str, ...]:
+        """
+        Find Microsoft .NET Framework versions.
+
+        Parameters
+        ----------
+        bits: int
+            Platform number of bits: 32 or 64.
+
+        Return
+        ------
+        tuple of str
+            versions
+        """
+        # Find actual .NET version in registry
+        reg_ver = self.ri.lookup(self.ri.vc, f'frameworkver{bits}')
+        dot_net_dir = getattr(self, f'FrameworkDir{bits}')
+        ver = reg_ver or self._use_last_dir_name(dot_net_dir, 'v') or ''
+
+        # Set .NET versions for specified MSVC++ version
+        if self.vs_ver >= 12.0:
+            return ver, 'v4.0'
+        elif self.vs_ver >= 10.0:
+            return 'v4.0.30319' if ver.lower()[:2] != 'v4' else ver, 'v3.5'
+        elif self.vs_ver == 9.0:
+            return 'v3.5', 'v2.0.50727'
+        elif self.vs_ver == 8.0:
+            return 'v3.0', 'v2.0.50727'
+        return ()
+
+    @staticmethod
+    def _use_last_dir_name(path, prefix=''):
+        """
+        Return name of the last dir in path or '' if no dir found.
+
+        Parameters
+        ----------
+        path: str
+            Use dirs in this path
+        prefix: str
+            Use only dirs starting by this prefix
+
+        Return
+        ------
+        str
+            name
+        """
+        matching_dirs = (
+            dir_name
+            for dir_name in reversed(os.listdir(path))
+            if os.path.isdir(os.path.join(path, dir_name))
+            and dir_name.startswith(prefix)
+        )
+        return next(matching_dirs, None) or ''
+
+
+class _EnvironmentDict(TypedDict):
+    include: str
+    lib: str
+    libpath: str
+    path: str
+    py_vcruntime_redist: NotRequired[str | None]
+
+
+class EnvironmentInfo:
+    """
+    Return environment variables for specified Microsoft Visual C++ version
+    and platform : Lib, Include, Path and libpath.
+
+    This function is compatible with Microsoft Visual C++ 9.0 to 14.X.
+
+    Script created by analysing Microsoft environment configuration files like
+    "vcvars[...].bat", "SetEnv.Cmd", "vcbuildtools.bat", ...
+
+    Parameters
+    ----------
+    arch: str
+        Target architecture.
+    vc_ver: float
+        Required Microsoft Visual C++ version. If not set, autodetect the last
+        version.
+    vc_min_ver: float
+        Minimum Microsoft Visual C++ version.
+    """
+
+    # Variables and properties in this class use originals CamelCase variables
+    # names from Microsoft source files for more easy comparison.
+
+    def __init__(self, arch, vc_ver=None, vc_min_ver=0) -> None:
+        self.pi = PlatformInfo(arch)
+        self.ri = RegistryInfo(self.pi)
+        self.si = SystemInfo(self.ri, vc_ver)
+
+        if self.vc_ver < vc_min_ver:
+            err = 'No suitable Microsoft Visual C++ version found'
+            raise distutils.errors.DistutilsPlatformError(err)
+
+    @property
+    def vs_ver(self):
+        """
+        Microsoft Visual Studio.
+
+        Return
+        ------
+        float
+            version
+        """
+        return self.si.vs_ver
+
+    @property
+    def vc_ver(self):
+        """
+        Microsoft Visual C++ version.
+
+        Return
+        ------
+        float
+            version
+        """
+        return self.si.vc_ver
+
+    @property
+    def VSTools(self):
+        """
+        Microsoft Visual Studio Tools.
+
+        Return
+        ------
+        list of str
+            paths
+        """
+        paths = [r'Common7\IDE', r'Common7\Tools']
+
+        if self.vs_ver >= 14.0:
+            arch_subdir = self.pi.current_dir(hidex86=True, x64=True)
+            paths += [r'Common7\IDE\CommonExtensions\Microsoft\TestWindow']
+            paths += [r'Team Tools\Performance Tools']
+            paths += [rf'Team Tools\Performance Tools{arch_subdir}']
+
+        return [os.path.join(self.si.VSInstallDir, path) for path in paths]
+
+    @property
+    def VCIncludes(self):
+        """
+        Microsoft Visual C++ & Microsoft Foundation Class Includes.
+
+        Return
+        ------
+        list of str
+            paths
+        """
+        return [
+            os.path.join(self.si.VCInstallDir, 'Include'),
+            os.path.join(self.si.VCInstallDir, r'ATLMFC\Include'),
+        ]
+
+    @property
+    def VCLibraries(self):
+        """
+        Microsoft Visual C++ & Microsoft Foundation Class Libraries.
+
+        Return
+        ------
+        list of str
+            paths
+        """
+        if self.vs_ver >= 15.0:
+            arch_subdir = self.pi.target_dir(x64=True)
+        else:
+            arch_subdir = self.pi.target_dir(hidex86=True)
+        paths = [f'Lib{arch_subdir}', rf'ATLMFC\Lib{arch_subdir}']
+
+        if self.vs_ver >= 14.0:
+            paths += [rf'Lib\store{arch_subdir}']
+
+        return [os.path.join(self.si.VCInstallDir, path) for path in paths]
+
+    @property
+    def VCStoreRefs(self):
+        """
+        Microsoft Visual C++ store references Libraries.
+
+        Return
+        ------
+        list of str
+            paths
+        """
+        if self.vs_ver < 14.0:
+            return []
+        return [os.path.join(self.si.VCInstallDir, r'Lib\store\references')]
+
+    @property
+    def VCTools(self):
+        """
+        Microsoft Visual C++ Tools.
+
+        Return
+        ------
+        list of str
+            paths
+
+        When host CPU is ARM, the tools should be found for ARM.
+
+        >>> getfixture('windows_only')
+        >>> mp = getfixture('monkeypatch')
+        >>> mp.setattr(PlatformInfo, 'current_cpu', 'arm64')
+        >>> ei = EnvironmentInfo(arch='irrelevant')
+        >>> paths = ei.VCTools
+        >>> any('HostARM64' in path for path in paths)
+        True
+        """
+        si = self.si
+        tools = [os.path.join(si.VCInstallDir, 'VCPackages')]
+
+        forcex86 = True if self.vs_ver <= 10.0 else False
+        arch_subdir = self.pi.cross_dir(forcex86)
+        if arch_subdir:
+            tools += [os.path.join(si.VCInstallDir, f'Bin{arch_subdir}')]
+
+        if self.vs_ver == 14.0:
+            path = f'Bin{self.pi.current_dir(hidex86=True)}'
+            tools += [os.path.join(si.VCInstallDir, path)]
+
+        elif self.vs_ver >= 15.0:
+            host_id = self.pi.current_cpu.replace('amd64', 'x64').upper()
+            host_dir = os.path.join('bin', f'Host{host_id}%s')
+            tools += [
+                os.path.join(si.VCInstallDir, host_dir % self.pi.target_dir(x64=True))
+            ]
+
+            if self.pi.current_cpu != self.pi.target_cpu:
+                tools += [
+                    os.path.join(
+                        si.VCInstallDir, host_dir % self.pi.current_dir(x64=True)
+                    )
+                ]
+
+        else:
+            tools += [os.path.join(si.VCInstallDir, 'Bin')]
+
+        return tools
+
+    @property
+    def OSLibraries(self):
+        """
+        Microsoft Windows SDK Libraries.
+
+        Return
+        ------
+        list of str
+            paths
+        """
+        if self.vs_ver <= 10.0:
+            arch_subdir = self.pi.target_dir(hidex86=True, x64=True)
+            return [os.path.join(self.si.WindowsSdkDir, f'Lib{arch_subdir}')]
+
+        else:
+            arch_subdir = self.pi.target_dir(x64=True)
+            lib = os.path.join(self.si.WindowsSdkDir, 'lib')
+            libver = self._sdk_subdir
+            return [os.path.join(lib, f'{libver}um{arch_subdir}')]
+
+    @property
+    def OSIncludes(self):
+        """
+        Microsoft Windows SDK Include.
+
+        Return
+        ------
+        list of str
+            paths
+        """
+        include = os.path.join(self.si.WindowsSdkDir, 'include')
+
+        if self.vs_ver <= 10.0:
+            return [include, os.path.join(include, 'gl')]
+
+        else:
+            if self.vs_ver >= 14.0:
+                sdkver = self._sdk_subdir
+            else:
+                sdkver = ''
+            return [
+                os.path.join(include, f'{sdkver}shared'),
+                os.path.join(include, f'{sdkver}um'),
+                os.path.join(include, f'{sdkver}winrt'),
+            ]
+
+    @property
+    def OSLibpath(self):
+        """
+        Microsoft Windows SDK Libraries Paths.
+
+        Return
+        ------
+        list of str
+            paths
+        """
+        ref = os.path.join(self.si.WindowsSdkDir, 'References')
+        libpath = []
+
+        if self.vs_ver <= 9.0:
+            libpath += self.OSLibraries
+
+        if self.vs_ver >= 11.0:
+            libpath += [os.path.join(ref, r'CommonConfiguration\Neutral')]
+
+        if self.vs_ver >= 14.0:
+            libpath += [
+                ref,
+                os.path.join(self.si.WindowsSdkDir, 'UnionMetadata'),
+                os.path.join(ref, 'Windows.Foundation.UniversalApiContract', '1.0.0.0'),
+                os.path.join(ref, 'Windows.Foundation.FoundationContract', '1.0.0.0'),
+                os.path.join(
+                    ref, 'Windows.Networking.Connectivity.WwanContract', '1.0.0.0'
+                ),
+                os.path.join(
+                    self.si.WindowsSdkDir,
+                    'ExtensionSDKs',
+                    'Microsoft.VCLibs',
+                    f'{self.vs_ver:0.1f}',
+                    'References',
+                    'CommonConfiguration',
+                    'neutral',
+                ),
+            ]
+        return libpath
+
+    @property
+    def SdkTools(self):
+        """
+        Microsoft Windows SDK Tools.
+
+        Return
+        ------
+        list of str
+            paths
+        """
+        return list(self._sdk_tools())
+
+    def _sdk_tools(self):
+        """
+        Microsoft Windows SDK Tools paths generator.
+
+        Return
+        ------
+        generator of str
+            paths
+        """
+        if self.vs_ver < 15.0:
+            bin_dir = 'Bin' if self.vs_ver <= 11.0 else r'Bin\x86'
+            yield os.path.join(self.si.WindowsSdkDir, bin_dir)
+
+        if not self.pi.current_is_x86():
+            arch_subdir = self.pi.current_dir(x64=True)
+            path = f'Bin{arch_subdir}'
+            yield os.path.join(self.si.WindowsSdkDir, path)
+
+        if self.vs_ver in (10.0, 11.0):
+            if self.pi.target_is_x86():
+                arch_subdir = ''
+            else:
+                arch_subdir = self.pi.current_dir(hidex86=True, x64=True)
+            path = rf'Bin\NETFX 4.0 Tools{arch_subdir}'
+            yield os.path.join(self.si.WindowsSdkDir, path)
+
+        elif self.vs_ver >= 15.0:
+            path = os.path.join(self.si.WindowsSdkDir, 'Bin')
+            arch_subdir = self.pi.current_dir(x64=True)
+            sdkver = self.si.WindowsSdkLastVersion
+            yield os.path.join(path, f'{sdkver}{arch_subdir}')
+
+        if self.si.WindowsSDKExecutablePath:
+            yield self.si.WindowsSDKExecutablePath
+
+    @property
+    def _sdk_subdir(self):
+        """
+        Microsoft Windows SDK version subdir.
+
+        Return
+        ------
+        str
+            subdir
+        """
+        ucrtver = self.si.WindowsSdkLastVersion
+        return (f'{ucrtver}\\') if ucrtver else ''
+
+    @property
+    def SdkSetup(self):
+        """
+        Microsoft Windows SDK Setup.
+
+        Return
+        ------
+        list of str
+            paths
+        """
+        if self.vs_ver > 9.0:
+            return []
+
+        return [os.path.join(self.si.WindowsSdkDir, 'Setup')]
+
+    @property
+    def FxTools(self):
+        """
+        Microsoft .NET Framework Tools.
+
+        Return
+        ------
+        list of str
+            paths
+        """
+        pi = self.pi
+        si = self.si
+
+        if self.vs_ver <= 10.0:
+            include32 = True
+            include64 = not pi.target_is_x86() and not pi.current_is_x86()
+        else:
+            include32 = pi.target_is_x86() or pi.current_is_x86()
+            include64 = pi.current_cpu == 'amd64' or pi.target_cpu == 'amd64'
+
+        tools = []
+        if include32:
+            tools += [
+                os.path.join(si.FrameworkDir32, ver) for ver in si.FrameworkVersion32
+            ]
+        if include64:
+            tools += [
+                os.path.join(si.FrameworkDir64, ver) for ver in si.FrameworkVersion64
+            ]
+        return tools
+
+    @property
+    def NetFxSDKLibraries(self):
+        """
+        Microsoft .Net Framework SDK Libraries.
+
+        Return
+        ------
+        list of str
+            paths
+        """
+        if self.vs_ver < 14.0 or not self.si.NetFxSdkDir:
+            return []
+
+        arch_subdir = self.pi.target_dir(x64=True)
+        return [os.path.join(self.si.NetFxSdkDir, rf'lib\um{arch_subdir}')]
+
+    @property
+    def NetFxSDKIncludes(self):
+        """
+        Microsoft .Net Framework SDK Includes.
+
+        Return
+        ------
+        list of str
+            paths
+        """
+        if self.vs_ver < 14.0 or not self.si.NetFxSdkDir:
+            return []
+
+        return [os.path.join(self.si.NetFxSdkDir, r'include\um')]
+
+    @property
+    def VsTDb(self):
+        """
+        Microsoft Visual Studio Team System Database.
+
+        Return
+        ------
+        list of str
+            paths
+        """
+        return [os.path.join(self.si.VSInstallDir, r'VSTSDB\Deploy')]
+
+    @property
+    def MSBuild(self):
+        """
+        Microsoft Build Engine.
+
+        Return
+        ------
+        list of str
+            paths
+        """
+        if self.vs_ver < 12.0:
+            return []
+        elif self.vs_ver < 15.0:
+            base_path = self.si.ProgramFilesx86
+            arch_subdir = self.pi.current_dir(hidex86=True)
+        else:
+            base_path = self.si.VSInstallDir
+            arch_subdir = ''
+
+        path = rf'MSBuild\{self.vs_ver:0.1f}\bin{arch_subdir}'
+        build = [os.path.join(base_path, path)]
+
+        if self.vs_ver >= 15.0:
+            # Add Roslyn C# & Visual Basic Compiler
+            build += [os.path.join(base_path, path, 'Roslyn')]
+
+        return build
+
+    @property
+    def HTMLHelpWorkshop(self):
+        """
+        Microsoft HTML Help Workshop.
+
+        Return
+        ------
+        list of str
+            paths
+        """
+        if self.vs_ver < 11.0:
+            return []
+
+        return [os.path.join(self.si.ProgramFilesx86, 'HTML Help Workshop')]
+
+    @property
+    def UCRTLibraries(self):
+        """
+        Microsoft Universal C Runtime SDK Libraries.
+
+        Return
+        ------
+        list of str
+            paths
+        """
+        if self.vs_ver < 14.0:
+            return []
+
+        arch_subdir = self.pi.target_dir(x64=True)
+        lib = os.path.join(self.si.UniversalCRTSdkDir, 'lib')
+        ucrtver = self._ucrt_subdir
+        return [os.path.join(lib, f'{ucrtver}ucrt{arch_subdir}')]
+
+    @property
+    def UCRTIncludes(self):
+        """
+        Microsoft Universal C Runtime SDK Include.
+
+        Return
+        ------
+        list of str
+            paths
+        """
+        if self.vs_ver < 14.0:
+            return []
+
+        include = os.path.join(self.si.UniversalCRTSdkDir, 'include')
+        return [os.path.join(include, f'{self._ucrt_subdir}ucrt')]
+
+    @property
+    def _ucrt_subdir(self):
+        """
+        Microsoft Universal C Runtime SDK version subdir.
+
+        Return
+        ------
+        str
+            subdir
+        """
+        ucrtver = self.si.UniversalCRTSdkLastVersion
+        return (f'{ucrtver}\\') if ucrtver else ''
+
+    @property
+    def FSharp(self):
+        """
+        Microsoft Visual F#.
+
+        Return
+        ------
+        list of str
+            paths
+        """
+        if 11.0 > self.vs_ver > 12.0:
+            return []
+
+        return [self.si.FSharpInstallDir]
+
+    @property
+    def VCRuntimeRedist(self) -> str | None:
+        """
+        Microsoft Visual C++ runtime redistributable dll.
+
+        Returns the first suitable path found or None.
+        """
+        vcruntime = f'vcruntime{self.vc_ver}0.dll'
+        arch_subdir = self.pi.target_dir(x64=True).strip('\\')
+
+        # Installation prefixes candidates
+        prefixes = []
+        tools_path = self.si.VCInstallDir
+        redist_path = os.path.dirname(tools_path.replace(r'\Tools', r'\Redist'))
+        if os.path.isdir(redist_path):
+            # Redist version may not be exactly the same as tools
+            redist_path = os.path.join(redist_path, os.listdir(redist_path)[-1])
+            prefixes += [redist_path, os.path.join(redist_path, 'onecore')]
+
+        prefixes += [os.path.join(tools_path, 'redist')]  # VS14 legacy path
+
+        # CRT directory
+        crt_dirs = (
+            f'Microsoft.VC{self.vc_ver * 10}.CRT',
+            # Sometime store in directory with VS version instead of VC
+            f'Microsoft.VC{int(self.vs_ver) * 10}.CRT',
+        )
+
+        # vcruntime path
+        candidate_paths = (
+            os.path.join(prefix, arch_subdir, crt_dir, vcruntime)
+            for (prefix, crt_dir) in itertools.product(prefixes, crt_dirs)
+        )
+        return next(filter(os.path.isfile, candidate_paths), None)  # type: ignore[arg-type] #python/mypy#12682
+
+    def return_env(self, exists: bool = True) -> _EnvironmentDict:
+        """
+        Return environment dict.
+
+        Parameters
+        ----------
+        exists: bool
+            It True, only return existing paths.
+
+        Return
+        ------
+        dict
+            environment
+        """
+        env = _EnvironmentDict(
+            include=self._build_paths(
+                'include',
+                [
+                    self.VCIncludes,
+                    self.OSIncludes,
+                    self.UCRTIncludes,
+                    self.NetFxSDKIncludes,
+                ],
+                exists,
+            ),
+            lib=self._build_paths(
+                'lib',
+                [
+                    self.VCLibraries,
+                    self.OSLibraries,
+                    self.FxTools,
+                    self.UCRTLibraries,
+                    self.NetFxSDKLibraries,
+                ],
+                exists,
+            ),
+            libpath=self._build_paths(
+                'libpath',
+                [self.VCLibraries, self.FxTools, self.VCStoreRefs, self.OSLibpath],
+                exists,
+            ),
+            path=self._build_paths(
+                'path',
+                [
+                    self.VCTools,
+                    self.VSTools,
+                    self.VsTDb,
+                    self.SdkTools,
+                    self.SdkSetup,
+                    self.FxTools,
+                    self.MSBuild,
+                    self.HTMLHelpWorkshop,
+                    self.FSharp,
+                ],
+                exists,
+            ),
+        )
+        if self.vs_ver >= 14 and self.VCRuntimeRedist:
+            env['py_vcruntime_redist'] = self.VCRuntimeRedist
+        return env
+
+    def _build_paths(self, name, spec_path_lists, exists):
+        """
+        Given an environment variable name and specified paths,
+        return a pathsep-separated string of paths containing
+        unique, extant, directories from those paths and from
+        the environment variable. Raise an error if no paths
+        are resolved.
+
+        Parameters
+        ----------
+        name: str
+            Environment variable name
+        spec_path_lists: list of str
+            Paths
+        exists: bool
+            It True, only return existing paths.
+
+        Return
+        ------
+        str
+            Pathsep-separated paths
+        """
+        # flatten spec_path_lists
+        spec_paths = itertools.chain.from_iterable(spec_path_lists)
+        env_paths = environ.get(name, '').split(os.pathsep)
+        paths = itertools.chain(spec_paths, env_paths)
+        extant_paths = list(filter(os.path.isdir, paths)) if exists else paths
+        if not extant_paths:
+            msg = f"{name.upper()} environment variable is empty"
+            raise distutils.errors.DistutilsPlatformError(msg)
+        unique_paths = unique_everseen(extant_paths)
+        return os.pathsep.join(unique_paths)
diff --git a/setuptools/namespaces.py b/setuptools/namespaces.py
new file mode 100644
index 0000000000..85ea2ebd65
--- /dev/null
+++ b/setuptools/namespaces.py
@@ -0,0 +1,106 @@
+import itertools
+import os
+
+from .compat import py312
+
+from distutils import log
+
+flatten = itertools.chain.from_iterable
+
+
+class Installer:
+    nspkg_ext = '-nspkg.pth'
+
+    def install_namespaces(self) -> None:
+        nsp = self._get_all_ns_packages()
+        if not nsp:
+            return
+        filename = self._get_nspkg_file()
+        self.outputs.append(filename)
+        log.info("Installing %s", filename)
+        lines = map(self._gen_nspkg_line, nsp)
+
+        if self.dry_run:
+            # always generate the lines, even in dry run
+            list(lines)
+            return
+
+        with open(filename, 'wt', encoding=py312.PTH_ENCODING) as f:
+            # Python<3.13 requires encoding="locale" instead of "utf-8"
+            # See: python/cpython#77102
+            f.writelines(lines)
+
+    def uninstall_namespaces(self) -> None:
+        filename = self._get_nspkg_file()
+        if not os.path.exists(filename):
+            return
+        log.info("Removing %s", filename)
+        os.remove(filename)
+
+    def _get_nspkg_file(self):
+        filename, _ = os.path.splitext(self._get_target())
+        return filename + self.nspkg_ext
+
+    def _get_target(self):
+        return self.target
+
+    _nspkg_tmpl = (
+        "import sys, types, os",
+        "p = os.path.join(%(root)s, *%(pth)r)",
+        "importlib = __import__('importlib.util')",
+        "__import__('importlib.machinery')",
+        (
+            "m = "
+            "sys.modules.setdefault(%(pkg)r, "
+            "importlib.util.module_from_spec("
+            "importlib.machinery.PathFinder.find_spec(%(pkg)r, "
+            "[os.path.dirname(p)])))"
+        ),
+        ("m = m or sys.modules.setdefault(%(pkg)r, types.ModuleType(%(pkg)r))"),
+        "mp = (m or []) and m.__dict__.setdefault('__path__',[])",
+        "(p not in mp) and mp.append(p)",
+    )
+    "lines for the namespace installer"
+
+    _nspkg_tmpl_multi = ('m and setattr(sys.modules[%(parent)r], %(child)r, m)',)
+    "additional line(s) when a parent package is indicated"
+
+    def _get_root(self):
+        return "sys._getframe(1).f_locals['sitedir']"
+
+    def _gen_nspkg_line(self, pkg):
+        pth = tuple(pkg.split('.'))
+        root = self._get_root()
+        tmpl_lines = self._nspkg_tmpl
+        parent, sep, child = pkg.rpartition('.')
+        if parent:
+            tmpl_lines += self._nspkg_tmpl_multi
+        return ';'.join(tmpl_lines) % locals() + '\n'
+
+    def _get_all_ns_packages(self):
+        """Return sorted list of all package namespaces"""
+        pkgs = self.distribution.namespace_packages or []
+        return sorted(set(flatten(map(self._pkg_names, pkgs))))
+
+    @staticmethod
+    def _pkg_names(pkg):
+        """
+        Given a namespace package, yield the components of that
+        package.
+
+        >>> names = Installer._pkg_names('a.b.c')
+        >>> set(names) == set(['a', 'a.b', 'a.b.c'])
+        True
+        """
+        parts = pkg.split('.')
+        while parts:
+            yield '.'.join(parts)
+            parts.pop()
+
+
+class DevelopInstaller(Installer):
+    def _get_root(self):
+        return repr(str(self.egg_path))
+
+    def _get_target(self):
+        return self.egg_link
diff --git a/setuptools/package_index.py b/setuptools/package_index.py
old mode 100755
new mode 100644
index e601cc1548..3500c2d86f
--- a/setuptools/package_index.py
+++ b/setuptools/package_index.py
@@ -1,85 +1,165 @@
-"""PyPI and direct package downloading"""
-import sys, os.path, re, urlparse, urllib2, shutil, random, socket, cStringIO
-from pkg_resources import *
+"""PyPI and direct package downloading."""
+
+from __future__ import annotations
+
+import base64
+import configparser
+import hashlib
+import html
+import http.client
+import io
+import itertools
+import os
+import re
+import shutil
+import socket
+import subprocess
+import sys
+import urllib.error
+import urllib.parse
+import urllib.request
+from fnmatch import translate
+from functools import wraps
+from typing import NamedTuple
+
+from more_itertools import unique_everseen
+
+import setuptools
+from pkg_resources import (
+    BINARY_DIST,
+    CHECKOUT_DIST,
+    DEVELOP_DIST,
+    EGG_DIST,
+    SOURCE_DIST,
+    Distribution,
+    Environment,
+    Requirement,
+    find_distributions,
+    normalize_path,
+    parse_version,
+    safe_name,
+    safe_version,
+    to_filename,
+)
+from setuptools.wheel import Wheel
+
+from .unicode_utils import _cfg_read_utf8_with_fallback, _read_utf8_with_fallback
+
 from distutils import log
 from distutils.errors import DistutilsError
-try:
-    from hashlib import md5
-except ImportError:
-    from md5 import md5
-from fnmatch import translate
 
-EGG_FRAGMENT = re.compile(r'^egg=([-A-Za-z0-9_.]+)$')
-HREF = re.compile("""href\\s*=\\s*['"]?([^'"> ]+)""", re.I)
-# this is here to fix emacs' cruddy broken syntax highlighting
+EGG_FRAGMENT = re.compile(r'^egg=([-A-Za-z0-9_.+!]+)$')
+HREF = re.compile(r"""href\s*=\s*['"]?([^'"> ]+)""", re.I)
 PYPI_MD5 = re.compile(
-    '([^<]+)\n\s+\\(md5\\)'
+    r'([^<]+)\n\s+\(md5\)'
 )
-URL_SCHEME = re.compile('([-+.a-z0-9]{2,}):',re.I).match
+URL_SCHEME = re.compile('([-+.a-z0-9]{2,}):', re.I).match
 EXTENSIONS = ".tar.gz .tar.bz2 .tar .zip .tgz".split()
 
 __all__ = [
-    'PackageIndex', 'distros_for_url', 'parse_bdist_wininst',
+    'PackageIndex',
+    'distros_for_url',
+    'parse_bdist_wininst',
     'interpret_distro_name',
 ]
 
+_SOCKET_TIMEOUT = 15
+
+user_agent = f"setuptools/{setuptools.__version__} Python-urllib/{sys.version_info.major}.{sys.version_info.minor}"
+
+
+def parse_requirement_arg(spec):
+    try:
+        return Requirement.parse(spec)
+    except ValueError as e:
+        raise DistutilsError(
+            f"Not a URL, existing file, or requirement spec: {spec!r}"
+        ) from e
+
+
 def parse_bdist_wininst(name):
     """Return (base,pyversion) or (None,None) for possible .exe name"""
 
     lower = name.lower()
-    base, py_ver = None, None
+    base, py_ver, plat = None, None, None
 
     if lower.endswith('.exe'):
         if lower.endswith('.win32.exe'):
             base = name[:-10]
-        elif lower.startswith('.win32-py',-16):
+            plat = 'win32'
+        elif lower.startswith('.win32-py', -16):
             py_ver = name[-7:-4]
             base = name[:-16]
+            plat = 'win32'
+        elif lower.endswith('.win-amd64.exe'):
+            base = name[:-14]
+            plat = 'win-amd64'
+        elif lower.startswith('.win-amd64-py', -20):
+            py_ver = name[-7:-4]
+            base = name[:-20]
+            plat = 'win-amd64'
+    return base, py_ver, plat
 
-    return base,py_ver
 
 def egg_info_for_url(url):
-    scheme, server, path, parameters, query, fragment = urlparse.urlparse(url)
-    base = urllib2.unquote(path.split('/')[-1])
-    if '#' in base: base, fragment = base.split('#',1)
-    return base,fragment
+    parts = urllib.parse.urlparse(url)
+    _scheme, server, path, _parameters, _query, fragment = parts
+    base = urllib.parse.unquote(path.split('/')[-1])
+    if server == 'sourceforge.net' and base == 'download':  # XXX Yuck
+        base = urllib.parse.unquote(path.split('/')[-2])
+    if '#' in base:
+        base, fragment = base.split('#', 1)
+    return base, fragment
+
 
 def distros_for_url(url, metadata=None):
     """Yield egg or source distribution objects that might be found at a URL"""
     base, fragment = egg_info_for_url(url)
-    for dist in distros_for_location(url, base, metadata): yield dist
+    yield from distros_for_location(url, base, metadata)
     if fragment:
         match = EGG_FRAGMENT.match(fragment)
         if match:
-            for dist in interpret_distro_name(
-                url, match.group(1), metadata, precedence = CHECKOUT_DIST
-            ):
-                yield dist
+            yield from interpret_distro_name(
+                url, match.group(1), metadata, precedence=CHECKOUT_DIST
+            )
+
 
 def distros_for_location(location, basename, metadata=None):
     """Yield egg or source distribution objects based on basename"""
     if basename.endswith('.egg.zip'):
-        basename = basename[:-4]    # strip the .zip
+        basename = basename[:-4]  # strip the .zip
     if basename.endswith('.egg') and '-' in basename:
         # only one, unambiguous interpretation
         return [Distribution.from_location(location, basename, metadata)]
-
+    if basename.endswith('.whl') and '-' in basename:
+        wheel = Wheel(basename)
+        if not wheel.is_compatible():
+            return []
+        return [
+            Distribution(
+                location=location,
+                project_name=wheel.project_name,
+                version=wheel.version,
+                # Increase priority over eggs.
+                precedence=EGG_DIST + 1,
+            )
+        ]
     if basename.endswith('.exe'):
-        win_base, py_ver = parse_bdist_wininst(basename)
+        win_base, py_ver, platform = parse_bdist_wininst(basename)
         if win_base is not None:
             return interpret_distro_name(
-                location, win_base, metadata, py_ver, BINARY_DIST, "win32"
+                location, win_base, metadata, py_ver, BINARY_DIST, platform
             )
-
     # Try source distro extensions (.zip, .tgz, etc.)
     #
     for ext in EXTENSIONS:
         if basename.endswith(ext):
-            basename = basename[:-len(ext)]
+            basename = basename[: -len(ext)]
             return interpret_distro_name(location, basename, metadata)
     return []  # no extension matched
 
+
 def distros_for_filename(filename, metadata=None):
     """Yield possible egg or source distribution objects based on a filename"""
     return distros_for_location(
@@ -87,82 +167,167 @@ def distros_for_filename(filename, metadata=None):
     )
 
 
-def interpret_distro_name(location, basename, metadata,
-    py_version=None, precedence=SOURCE_DIST, platform=None
+def interpret_distro_name(
+    location, basename, metadata, py_version=None, precedence=SOURCE_DIST, platform=None
 ):
-    """Generate alternative interpretations of a source distro name
+    """Generate the interpretation of a source distro name
 
     Note: if `location` is a filesystem filename, you should call
     ``pkg_resources.normalize_path()`` on it before passing it to this
     routine!
     """
-    # Generate alternative interpretations of a source distro name
-    # Because some packages are ambiguous as to name/versions split
-    # e.g. "adns-python-1.1.0", "egenix-mx-commercial", etc.
-    # So, we generate each possible interepretation (e.g. "adns, python-1.1.0"
-    # "adns-python, 1.1.0", and "adns-python-1.1.0, no version").  In practice,
-    # the spurious interpretations should be ignored, because in the event
-    # there's also an "adns" package, the spurious "python-1.1.0" version will
-    # compare lower than any numeric version number, and is therefore unlikely
-    # to match a request for it.  It's still a potential problem, though, and
-    # in the long run PyPI and the distutils should go for "safe" names and
-    # versions in distribution archive names (sdist and bdist).
 
     parts = basename.split('-')
-    if not py_version:
-        for i,p in enumerate(parts[2:]):
-            if len(p)==5 and p.startswith('py2.'):
-                return # It's a bdist_dumb, not an sdist -- bail out
-
-    for p in range(1,len(parts)+1):
-        yield Distribution(
-            location, metadata, '-'.join(parts[:p]), '-'.join(parts[p:]),
-            py_version=py_version, precedence = precedence,
-            platform = platform
-        )
+    if not py_version and any(re.match(r'py\d\.\d$', p) for p in parts[2:]):
+        # it is a bdist_dumb, not an sdist -- bail out
+        return
+
+    # find the pivot (p) that splits the name from the version.
+    # infer the version as the first item that has a digit.
+    for p in range(len(parts)):
+        if parts[p][:1].isdigit():
+            break
+    else:
+        p = len(parts)
+
+    yield Distribution(
+        location,
+        metadata,
+        '-'.join(parts[:p]),
+        '-'.join(parts[p:]),
+        py_version=py_version,
+        precedence=precedence,
+        platform=platform,
+    )
 
-REL = re.compile("""<([^>]*\srel\s*=\s*['"]?([^'">]+)[^>]*)>""", re.I)
-# this line is here to fix emacs' cruddy broken syntax highlighting
 
+def unique_values(func):
+    """
+    Wrap a function returning an iterable such that the resulting iterable
+    only ever yields unique items.
+    """
+
+    @wraps(func)
+    def wrapper(*args, **kwargs):
+        return unique_everseen(func(*args, **kwargs))
+
+    return wrapper
+
+
+REL = re.compile(r"""<([^>]*\srel\s{0,10}=\s{0,10}['"]?([^'" >]+)[^>]*)>""", re.I)
+"""
+Regex for an HTML tag with 'rel="val"' attributes.
+"""
+
+
+@unique_values
 def find_external_links(url, page):
     """Find rel="homepage" and rel="download" links in `page`, yielding URLs"""
 
     for match in REL.finditer(page):
         tag, rel = match.groups()
-        rels = map(str.strip, rel.lower().split(','))
+        rels = set(map(str.strip, rel.lower().split(',')))
         if 'homepage' in rels or 'download' in rels:
             for match in HREF.finditer(tag):
-                yield urlparse.urljoin(url, htmldecode(match.group(1)))
+                yield urllib.parse.urljoin(url, htmldecode(match.group(1)))
 
     for tag in ("Home Page", "Download URL"):
         pos = page.find(tag)
-        if pos!=-1:
-            match = HREF.search(page,pos)
+        if pos != -1:
+            match = HREF.search(page, pos)
             if match:
-                yield urlparse.urljoin(url, htmldecode(match.group(1)))
+                yield urllib.parse.urljoin(url, htmldecode(match.group(1)))
 
-user_agent = "Python-urllib/%s distribute/%s" % (
-    urllib2.__version__, require('distribute')[0].version
-)
 
+class ContentChecker:
+    """
+    A null content checker that defines the interface for checking content
+    """
 
-class PackageIndex(Environment):
-    """A distribution index that scans web pages for download URLs"""
+    def feed(self, block):
+        """
+        Feed a block of data to the hash.
+        """
+        return
+
+    def is_valid(self):
+        """
+        Check the hash. Return False if validation fails.
+        """
+        return True
+
+    def report(self, reporter, template):
+        """
+        Call reporter with information about the checker (hash name)
+        substituted into the template.
+        """
+        return
+
+
+class HashChecker(ContentChecker):
+    pattern = re.compile(
+        r'(?Psha1|sha224|sha384|sha256|sha512|md5)='
+        r'(?P[a-f0-9]+)'
+    )
+
+    def __init__(self, hash_name, expected) -> None:
+        self.hash_name = hash_name
+        self.hash = hashlib.new(hash_name)
+        self.expected = expected
 
-    def __init__(self, index_url="http://pypi.python.org/simple", hosts=('*',),
-        *args, **kw
-    ):
-        Environment.__init__(self,*args,**kw)
-        self.index_url = index_url + "/"[:not index_url.endswith('/')]
-        self.scanned_urls = {}
-        self.fetched_urls = {}
-        self.package_pages = {}
-        self.allows = re.compile('|'.join(map(translate,hosts))).match
-        self.to_scan = []
+    @classmethod
+    def from_url(cls, url):
+        "Construct a (possibly null) ContentChecker from a URL"
+        fragment = urllib.parse.urlparse(url)[-1]
+        if not fragment:
+            return ContentChecker()
+        match = cls.pattern.search(fragment)
+        if not match:
+            return ContentChecker()
+        return cls(**match.groupdict())
 
+    def feed(self, block):
+        self.hash.update(block)
 
+    def is_valid(self):
+        return self.hash.hexdigest() == self.expected
 
-    def process_url(self, url, retrieve=False):
+    def report(self, reporter, template):
+        msg = template % self.hash_name
+        return reporter(msg)
+
+
+class PackageIndex(Environment):
+    """A distribution index that scans web pages for download URLs"""
+
+    def __init__(
+        self,
+        index_url: str = "https://pypi.org/simple/",
+        hosts=('*',),
+        ca_bundle=None,
+        verify_ssl: bool = True,
+        *args,
+        **kw,
+    ) -> None:
+        super().__init__(*args, **kw)
+        self.index_url = index_url + "/"[: not index_url.endswith('/')]
+        self.scanned_urls: dict = {}
+        self.fetched_urls: dict = {}
+        self.package_pages: dict = {}
+        self.allows = re.compile('|'.join(map(translate, hosts))).match
+        self.to_scan: list = []
+        self.opener = urllib.request.urlopen
+
+    def add(self, dist):
+        # ignore invalid versions
+        try:
+            parse_version(dist.version)
+        except Exception:
+            return None
+        return super().add(dist)
+
+    # FIXME: 'PackageIndex.process_url' is too complex (14)
+    def process_url(self, url, retrieve: bool = False) -> None:  # noqa: C901
         """Evaluate a URL as a possible download, and maybe retrieve it"""
         if url in self.scanned_urls and not retrieve:
             return
@@ -178,7 +343,7 @@ def process_url(self, url, retrieve=False):
                 self.debug("Found link: %s", url)
 
         if dists or not retrieve or url in self.fetched_urls:
-            map(self.add, dists)
+            list(map(self.add, dists))
             return  # don't need the actual page
 
         if not self.url_ok(url):
@@ -186,24 +351,36 @@ def process_url(self, url, retrieve=False):
             return
 
         self.info("Reading %s", url)
-        f = self.open_url(url, "Download error: %s -- Some packages may not be found!")
-        if f is None: return
-        self.fetched_urls[url] = self.fetched_urls[f.url] = True
-
+        self.fetched_urls[url] = True  # prevent multiple fetch attempts
+        tmpl = "Download error on %s: %%s -- Some packages may not be found!"
+        f = self.open_url(url, tmpl % url)
+        if f is None:
+            return
+        if isinstance(f, urllib.error.HTTPError) and f.code == 401:
+            self.info(f"Authentication error: {f.msg}")
+        self.fetched_urls[f.url] = True
         if 'html' not in f.headers.get('content-type', '').lower():
-            f.close()   # not html, we can't process it
+            f.close()  # not html, we can't process it
             return
 
-        base = f.url     # handle redirects
+        base = f.url  # handle redirects
         page = f.read()
+        if not isinstance(page, str):
+            # In Python 3 and got bytes but want str.
+            if isinstance(f, urllib.error.HTTPError):
+                # Errors have no charset, assume latin1:
+                charset = 'latin-1'
+            else:
+                charset = f.headers.get_param('charset') or 'latin-1'
+            page = page.decode(charset, "ignore")
         f.close()
-        if url.startswith(self.index_url) and getattr(f,'code',None)!=404:
-            page = self.process_index(url, page)
         for match in HREF.finditer(page):
-            link = urlparse.urljoin(base, htmldecode(match.group(1)))
+            link = urllib.parse.urljoin(base, htmldecode(match.group(1)))
             self.process_url(link)
+        if url.startswith(self.index_url) and getattr(f, 'code', None) != 404:
+            page = self.process_index(url, page)
 
-    def process_filename(self, fn, nested=False):
+    def process_filename(self, fn, nested: bool = False) -> None:
         # process filenames or directories
         if not os.path.exists(fn):
             self.warn("Not found: %s", fn)
@@ -212,139 +389,159 @@ def process_filename(self, fn, nested=False):
         if os.path.isdir(fn) and not nested:
             path = os.path.realpath(fn)
             for item in os.listdir(path):
-                self.process_filename(os.path.join(path,item), True)
+                self.process_filename(os.path.join(path, item), True)
 
         dists = distros_for_filename(fn)
         if dists:
             self.debug("Found: %s", fn)
-            map(self.add, dists)
+            list(map(self.add, dists))
 
-    def url_ok(self, url, fatal=False):
+    def url_ok(self, url, fatal: bool = False) -> bool:
         s = URL_SCHEME(url)
-        if (s and s.group(1).lower()=='file') or self.allows(urlparse.urlparse(url)[1]):
+        is_file = s and s.group(1).lower() == 'file'
+        if is_file or self.allows(urllib.parse.urlparse(url)[1]):
             return True
-        msg = "\nLink to % s ***BLOCKED*** by --allow-hosts\n"
+        msg = (
+            "\nNote: Bypassing %s (disallowed host; see "
+            "https://setuptools.pypa.io/en/latest/deprecated/"
+            "easy_install.html#restricting-downloads-with-allow-hosts for details).\n"
+        )
         if fatal:
             raise DistutilsError(msg % url)
         else:
             self.warn(msg, url)
+            return False
+
+    def scan_egg_links(self, search_path) -> None:
+        dirs = filter(os.path.isdir, search_path)
+        egg_links = (
+            (path, entry)
+            for path in dirs
+            for entry in os.listdir(path)
+            if entry.endswith('.egg-link')
+        )
+        list(itertools.starmap(self.scan_egg_link, egg_links))
+
+    def scan_egg_link(self, path, entry) -> None:
+        content = _read_utf8_with_fallback(os.path.join(path, entry))
+        # filter non-empty lines
+        lines = list(filter(None, map(str.strip, content.splitlines())))
+
+        if len(lines) != 2:
+            # format is not recognized; punt
+            return
+
+        egg_path, _setup_path = lines
 
-    def scan_egg_links(self, search_path):
-        for item in search_path:
-            if os.path.isdir(item):
-                for entry in os.listdir(item):
-                    if entry.endswith('.egg-link'):
-                        self.scan_egg_link(item, entry)
-
-    def scan_egg_link(self, path, entry):
-        lines = filter(None, map(str.strip, file(os.path.join(path, entry))))
-        if len(lines)==2:
-            for dist in find_distributions(os.path.join(path, lines[0])):
-                dist.location = os.path.join(path, *lines)
-                dist.precedence = SOURCE_DIST
-                self.add(dist)
-
-    def process_index(self,url,page):
+        for dist in find_distributions(os.path.join(path, egg_path)):
+            dist.location = os.path.join(path, *lines)
+            dist.precedence = SOURCE_DIST
+            self.add(dist)
+
+    def _scan(self, link):
+        # Process a URL to see if it's for a package page
+        NO_MATCH_SENTINEL = None, None
+        if not link.startswith(self.index_url):
+            return NO_MATCH_SENTINEL
+
+        parts = list(map(urllib.parse.unquote, link[len(self.index_url) :].split('/')))
+        if len(parts) != 2 or '#' in parts[1]:
+            return NO_MATCH_SENTINEL
+
+        # it's a package page, sanitize and index it
+        pkg = safe_name(parts[0])
+        ver = safe_version(parts[1])
+        self.package_pages.setdefault(pkg.lower(), {})[link] = True
+        return to_filename(pkg), to_filename(ver)
+
+    def process_index(self, url, page):
         """Process the contents of a PyPI page"""
-        def scan(link):
-            # Process a URL to see if it's for a package page
-            if link.startswith(self.index_url):
-                parts = map(
-                    urllib2.unquote, link[len(self.index_url):].split('/')
-                )
-                if len(parts)==2 and '#' not in parts[1]:
-                    # it's a package page, sanitize and index it
-                    pkg = safe_name(parts[0])
-                    ver = safe_version(parts[1])
-                    self.package_pages.setdefault(pkg.lower(),{})[link] = True
-                    return to_filename(pkg), to_filename(ver)
-            return None, None
 
         # process an index page into the package-page index
         for match in HREF.finditer(page):
-            scan( urlparse.urljoin(url, htmldecode(match.group(1))) )
-
-        pkg, ver = scan(url)   # ensure this page is in the page index
-        if pkg:
-            # process individual package page
-            for new_url in find_external_links(url, page):
-                # Process the found URL
-                base, frag = egg_info_for_url(new_url)
-                if base.endswith('.py') and not frag:
-                    if ver:
-                        new_url+='#egg=%s-%s' % (pkg,ver)
-                    else:
-                        self.need_version_info(url)
-                self.scan_url(new_url)
-
-            return PYPI_MD5.sub(
-                lambda m: '%s' % m.group(1,3,2), page
-            )
-        else:
-            return ""   # no sense double-scanning non-package pages
-
+            try:
+                self._scan(urllib.parse.urljoin(url, htmldecode(match.group(1))))
+            except ValueError:
+                pass
+
+        pkg, ver = self._scan(url)  # ensure this page is in the page index
+        if not pkg:
+            return ""  # no sense double-scanning non-package pages
+
+        # process individual package page
+        for new_url in find_external_links(url, page):
+            # Process the found URL
+            base, frag = egg_info_for_url(new_url)
+            if base.endswith('.py') and not frag:
+                if ver:
+                    new_url += f'#egg={pkg}-{ver}'
+                else:
+                    self.need_version_info(url)
+            self.scan_url(new_url)
 
+        return PYPI_MD5.sub(
+            lambda m: '{}'.format(*m.group(1, 3, 2)), page
+        )
 
-    def need_version_info(self, url):
+    def need_version_info(self, url) -> None:
         self.scan_all(
             "Page at %s links to .py file(s) without version info; an index "
-            "scan is required.", url
+            "scan is required.",
+            url,
         )
 
-    def scan_all(self, msg=None, *args):
+    def scan_all(self, msg=None, *args) -> None:
         if self.index_url not in self.fetched_urls:
-            if msg: self.warn(msg,*args)
-            self.info(
-                "Scanning index of all packages (this may take a while)"
-            )
+            if msg:
+                self.warn(msg, *args)
+            self.info("Scanning index of all packages (this may take a while)")
         self.scan_url(self.index_url)
 
-    def find_packages(self, requirement):
-        self.scan_url(self.index_url + requirement.unsafe_name+'/')
+    def find_packages(self, requirement) -> None:
+        self.scan_url(self.index_url + requirement.unsafe_name + '/')
 
         if not self.package_pages.get(requirement.key):
             # Fall back to safe version of the name
-            self.scan_url(self.index_url + requirement.project_name+'/')
+            self.scan_url(self.index_url + requirement.project_name + '/')
 
         if not self.package_pages.get(requirement.key):
             # We couldn't find the target package, so search the index page too
             self.not_found_in_index(requirement)
 
-        for url in list(self.package_pages.get(requirement.key,())):
+        for url in list(self.package_pages.get(requirement.key, ())):
             # scan each page that might be related to the desired package
             self.scan_url(url)
 
     def obtain(self, requirement, installer=None):
-        self.prescan(); self.find_packages(requirement)
+        self.prescan()
+        self.find_packages(requirement)
         for dist in self[requirement.key]:
             if dist in requirement:
                 return dist
             self.debug("%s does not match %s", requirement, dist)
-        return super(PackageIndex, self).obtain(requirement,installer)
-
-
-
-
+        return super().obtain(requirement, installer)
 
-    def check_md5(self, cs, info, filename, tfp):
-        if re.match('md5=[0-9a-f]{32}$', info):
-            self.debug("Validating md5 checksum for %s", filename)
-            if cs.hexdigest()<>info[4:]:
-                tfp.close()
-                os.unlink(filename)
-                raise DistutilsError(
-                    "MD5 validation failed for "+os.path.basename(filename)+
-                    "; possible download problem?"
-                )
+    def check_hash(self, checker, filename, tfp) -> None:
+        """
+        checker is a ContentChecker
+        """
+        checker.report(self.debug, f"Validating %s checksum for {filename}")
+        if not checker.is_valid():
+            tfp.close()
+            os.unlink(filename)
+            raise DistutilsError(
+                f"{checker.hash.name} validation failed for {os.path.basename(filename)}; "
+                "possible download problem?"
+            )
 
-    def add_find_links(self, urls):
+    def add_find_links(self, urls) -> None:
         """Add `urls` to the list that will be prescanned for searches"""
         for url in urls:
             if (
-                self.to_scan is None        # if we have already "gone online"
-                or not URL_SCHEME(url)      # or it's a local file/directory
+                self.to_scan is None  # if we have already "gone online"
+                or not URL_SCHEME(url)  # or it's a local file/directory
                 or url.startswith('file:')
-                or list(distros_for_url(url))   # or a direct package link
+                or list(distros_for_url(url))  # or a direct package link
             ):
                 # then go ahead and process it now
                 self.scan_url(url)
@@ -355,15 +552,14 @@ def add_find_links(self, urls):
     def prescan(self):
         """Scan urls scheduled for prescanning (e.g. --find-links)"""
         if self.to_scan:
-            map(self.scan_url, self.to_scan)
-        self.to_scan = None     # from now on, go ahead and process immediately
+            list(map(self.scan_url, self.to_scan))
+        self.to_scan = None  # from now on, go ahead and process immediately
 
-    def not_found_in_index(self, requirement):
-        if self[requirement.key]:   # we've seen at least one distro
+    def not_found_in_index(self, requirement) -> None:
+        if self[requirement.key]:  # we've seen at least one distro
             meth, msg = self.info, "Couldn't retrieve index page for %r"
-        else:   # no distros seen for this name, might be misspelled
-            meth, msg = (self.warn,
-                "Couldn't find index page for %r (maybe misspelled?)")
+        else:  # no distros seen for this name, might be misspelled
+            meth, msg = self.warn, "Couldn't find index page for %r (maybe misspelled?)"
         meth(msg, requirement.unsafe_name)
         self.scan_all()
 
@@ -385,32 +581,31 @@ def download(self, spec, tmpdir):
         of `tmpdir`, and the local filename is returned.  Various errors may be
         raised if a problem occurs during downloading.
         """
-        if not isinstance(spec,Requirement):
+        if not isinstance(spec, Requirement):
             scheme = URL_SCHEME(spec)
             if scheme:
                 # It's a url, download it to tmpdir
-                found = self._download_url(scheme.group(1), spec, tmpdir)
+                found = self._download_url(spec, tmpdir)
                 base, fragment = egg_info_for_url(spec)
                 if base.endswith('.py'):
-                    found = self.gen_setup(found,fragment,tmpdir)
+                    found = self.gen_setup(found, fragment, tmpdir)
                 return found
             elif os.path.exists(spec):
                 # Existing file or directory, just return it
                 return spec
             else:
-                try:
-                    spec = Requirement.parse(spec)
-                except ValueError:
-                    raise DistutilsError(
-                        "Not a URL, existing file, or requirement spec: %r" %
-                        (spec,)
-                    )
-        return getattr(self.fetch_distribution(spec, tmpdir),'location',None)
-
-
-    def fetch_distribution(self,
-        requirement, tmpdir, force_scan=False, source=False, develop_ok=False
-    ):
+                spec = parse_requirement_arg(spec)
+        return getattr(self.fetch_distribution(spec, tmpdir), 'location', None)
+
+    def fetch_distribution(  # noqa: C901  # is too complex (14)  # FIXME
+        self,
+        requirement,
+        tmpdir,
+        force_scan: bool = False,
+        source: bool = False,
+        develop_ok: bool = False,
+        local_index=None,
+    ) -> Distribution | None:
         """Obtain a distribution suitable for fulfilling `requirement`
 
         `requirement` must be a ``pkg_resources.Requirement`` instance.
@@ -427,35 +622,46 @@ def fetch_distribution(self,
         set, development and system eggs (i.e., those using the ``.egg-info``
         format) will be ignored.
         """
-
         # process a Requirement
         self.info("Searching for %s", requirement)
-        skipped = {}
+        skipped = set()
+        dist = None
 
-        def find(req):
+        def find(req, env: Environment | None = None):
+            if env is None:
+                env = self
             # Find a matching distribution; may be called more than once
 
-            for dist in self[req.key]:
-
-                if dist.precedence==DEVELOP_DIST and not develop_ok:
+            for dist in env[req.key]:
+                if dist.precedence == DEVELOP_DIST and not develop_ok:
                     if dist not in skipped:
-                        self.warn("Skipping development or system egg: %s",dist)
-                        skipped[dist] = 1
+                        self.warn(
+                            "Skipping development or system egg: %s",
+                            dist,
+                        )
+                        skipped.add(dist)
                     continue
 
-                if dist in req and (dist.precedence<=SOURCE_DIST or not source):
-                    self.info("Best match: %s", dist)
-                    return dist.clone(
-                        location=self.download(dist.location, tmpdir)
-                    )
+                test = dist in req and (dist.precedence <= SOURCE_DIST or not source)
+                if test:
+                    loc = self.download(dist.location, tmpdir)
+                    dist.download_location = loc
+                    if os.path.exists(dist.download_location):
+                        return dist
+
+            return None
 
         if force_scan:
             self.prescan()
             self.find_packages(requirement)
+            dist = find(requirement)
 
-        dist = find(requirement)
-        if dist is None and self.to_scan is not None:
-            self.prescan()
+        if not dist and local_index is not None:
+            dist = find(requirement, local_index)
+
+        if dist is None:
+            if self.to_scan is not None:
+                self.prescan()
             dist = find(requirement)
 
         if dist is None and not force_scan:
@@ -464,13 +670,18 @@ def find(req):
 
         if dist is None:
             self.warn(
-                "No local packages or download links found for %s%s",
+                "No local packages or working download links found for %s%s",
                 (source and "a source distribution of " or ""),
                 requirement,
             )
-        return dist
+            return None
+        else:
+            self.info("Best match: %s", dist)
+            return dist.clone(location=dist.download_location)
 
-    def fetch(self, requirement, tmpdir, force_scan=False, source=False):
+    def fetch(
+        self, requirement, tmpdir, force_scan: bool = False, source: bool = False
+    ) -> str | None:
         """Obtain a file suitable for fulfilling `requirement`
 
         DEPRECATED; use the ``fetch_distribution()`` method now instead.  For
@@ -478,52 +689,45 @@ def fetch(self, requirement, tmpdir, force_scan=False, source=False):
         ``location`` of the downloaded distribution instead of a distribution
         object.
         """
-        dist = self.fetch_distribution(requirement,tmpdir,force_scan,source)
+        dist = self.fetch_distribution(requirement, tmpdir, force_scan, source)
         if dist is not None:
             return dist.location
         return None
 
-
-
-
-
-
-
-
     def gen_setup(self, filename, fragment, tmpdir):
         match = EGG_FRAGMENT.match(fragment)
-        dists = match and [d for d in
-            interpret_distro_name(filename, match.group(1), None) if d.version
-        ] or []
+        dists = (
+            match
+            and [
+                d
+                for d in interpret_distro_name(filename, match.group(1), None)
+                if d.version
+            ]
+            or []
+        )
 
-        if len(dists)==1:   # unambiguous ``#egg`` fragment
+        if len(dists) == 1:  # unambiguous ``#egg`` fragment
             basename = os.path.basename(filename)
 
             # Make sure the file has been downloaded to the temp dir.
             if os.path.dirname(filename) != tmpdir:
                 dst = os.path.join(tmpdir, basename)
-                from setuptools.command.easy_install import samefile
-                if not samefile(filename, dst):
+                if not (os.path.exists(dst) and os.path.samefile(filename, dst)):
                     shutil.copy2(filename, dst)
-                    filename=dst
-
-            file = open(os.path.join(tmpdir, 'setup.py'), 'w')
-            file.write(
-                "from setuptools import setup\n"
-                "setup(name=%r, version=%r, py_modules=[%r])\n"
-                % (
-                    dists[0].project_name, dists[0].version,
-                    os.path.splitext(basename)[0]
+                    filename = dst
+
+            with open(os.path.join(tmpdir, 'setup.py'), 'w', encoding="utf-8") as file:
+                file.write(
+                    "from setuptools import setup\n"
+                    f"setup(name={dists[0].project_name!r}, version={dists[0].version!r}, py_modules=[{os.path.splitext(basename)[0]!r}])\n"
                 )
-            )
-            file.close()
             return filename
 
         elif match:
             raise DistutilsError(
-                "Can't unambiguously interpret project/version identifier %r; "
+                f"Can't unambiguously interpret project/version identifier {fragment!r}; "
                 "any dashes in the name or version should be escaped using "
-                "underscores. %r" % (fragment,dists)
+                f"underscores. {dists!r}"
             )
         else:
             raise DistutilsError(
@@ -532,250 +736,444 @@ def gen_setup(self, filename, fragment, tmpdir):
             )
 
     dl_blocksize = 8192
+
     def _download_to(self, url, filename):
         self.info("Downloading %s", url)
         # Download the file
-        fp, tfp, info = None, None, None
+        fp = None
         try:
-            if '#' in url:
-                url, info = url.split('#', 1)
+            checker = HashChecker.from_url(url)
             fp = self.open_url(url)
-            if isinstance(fp, urllib2.HTTPError):
-                raise DistutilsError(
-                    "Can't download %s: %s %s" % (url, fp.code,fp.msg)
-                )
-            cs = md5()
+            if isinstance(fp, urllib.error.HTTPError):
+                raise DistutilsError(f"Can't download {url}: {fp.code} {fp.msg}")
             headers = fp.info()
             blocknum = 0
             bs = self.dl_blocksize
             size = -1
             if "content-length" in headers:
-                size = int(headers["Content-Length"])
+                # Some servers return multiple Content-Length headers :(
+                sizes = headers.get_all('Content-Length')
+                size = max(map(int, sizes))
                 self.reporthook(url, filename, blocknum, bs, size)
-            tfp = open(filename,'wb')
-            while True:
-                block = fp.read(bs)
-                if block:
-                    cs.update(block)
-                    tfp.write(block)
-                    blocknum += 1
-                    self.reporthook(url, filename, blocknum, bs, size)
-                else:
-                    break
-            if info: self.check_md5(cs, info, filename, tfp)
+            with open(filename, 'wb') as tfp:
+                while True:
+                    block = fp.read(bs)
+                    if block:
+                        checker.feed(block)
+                        tfp.write(block)
+                        blocknum += 1
+                        self.reporthook(url, filename, blocknum, bs, size)
+                    else:
+                        break
+                self.check_hash(checker, filename, tfp)
             return headers
         finally:
-            if fp: fp.close()
-            if tfp: tfp.close()
-
-    def reporthook(self, url, filename, blocknum, blksize, size):
-        pass    # no-op
+            if fp:
+                fp.close()
 
+    def reporthook(self, url, filename, blocknum, blksize, size) -> None:
+        pass  # no-op
 
-    def open_url(self, url, warning=None):
+    # FIXME:
+    def open_url(self, url, warning=None):  # noqa: C901  # is too complex (12)
         if url.startswith('file:'):
             return local_open(url)
         try:
-            return open_with_auth(url)
-        except urllib2.HTTPError, v:
+            return open_with_auth(url, self.opener)
+        except (ValueError, http.client.InvalidURL) as v:
+            msg = ' '.join([str(arg) for arg in v.args])
+            if warning:
+                self.warn(warning, msg)
+            else:
+                raise DistutilsError(f'{url} {msg}') from v
+        except urllib.error.HTTPError as v:
             return v
-        except urllib2.URLError, v:
-            if warning: self.warn(warning, v.reason)
+        except urllib.error.URLError as v:
+            if warning:
+                self.warn(warning, v.reason)
             else:
-                raise DistutilsError("Download error for %s: %s"
-                                     % (url, v.reason))
-
-    def _download_url(self, scheme, url, tmpdir):
-        # Determine download filename
-        #
-        name = filter(None,urlparse.urlparse(url)[2].split('/'))
-        if name:
-            name = name[-1]
-            while '..' in name:
-                name = name.replace('..','.').replace('\\','_')
-        else:
-            name = "__downloaded__"    # default if URL has no path contents
+                raise DistutilsError(f"Download error for {url}: {v.reason}") from v
+        except http.client.BadStatusLine as v:
+            if warning:
+                self.warn(warning, v.line)
+            else:
+                raise DistutilsError(
+                    f'{url} returned a bad status line. The server might be '
+                    f'down, {v.line}'
+                ) from v
+        except (http.client.HTTPException, OSError) as v:
+            if warning:
+                self.warn(warning, v)
+            else:
+                raise DistutilsError(f"Download error for {url}: {v}") from v
+
+    @staticmethod
+    def _sanitize(name):
+        r"""
+        Replace unsafe path directives with underscores.
+
+        >>> san = PackageIndex._sanitize
+        >>> san('/home/user/.ssh/authorized_keys')
+        '_home_user_.ssh_authorized_keys'
+        >>> san('..\\foo\\bing')
+        '__foo_bing'
+        >>> san('D:bar')
+        'D_bar'
+        >>> san('C:\\bar')
+        'C__bar'
+        >>> san('foo..bar')
+        'foo..bar'
+        >>> san('D:../foo')
+        'D___foo'
+        """
+        pattern = '|'.join((
+            # drive letters
+            r':',
+            # path separators
+            r'[/\\]',
+            # parent dirs
+            r'(?:(?<=([/\\]|:))\.\.(?=[/\\]|$))|(?:^\.\.(?=[/\\]|$))',
+        ))
+        return re.sub(pattern, r'_', name)
+
+    @classmethod
+    def _resolve_download_filename(cls, url, tmpdir):
+        """
+        >>> import pathlib
+        >>> du = PackageIndex._resolve_download_filename
+        >>> root = getfixture('tmp_path')
+        >>> url = 'https://files.pythonhosted.org/packages/a9/5a/0db.../setuptools-78.1.0.tar.gz'
+        >>> str(pathlib.Path(du(url, root)).relative_to(root))
+        'setuptools-78.1.0.tar.gz'
+        """
+        name, _fragment = egg_info_for_url(url)
+        name = cls._sanitize(
+            name
+            or
+            # default if URL has no path contents
+            '__downloaded__'
+        )
 
-        if name.endswith('.egg.zip'):
-            name = name[:-4]    # strip the extra .zip before download
+        # strip any extra .zip before download
+        name = re.sub(r'\.egg\.zip$', '.egg', name)
 
-        filename = os.path.join(tmpdir,name)
+        return os.path.join(tmpdir, name)
 
-        # Download the file
-        #
-        if scheme=='svn' or scheme.startswith('svn+'):
-            return self._download_svn(url, filename)
-        elif scheme=='file':
-            return urllib2.url2pathname(urlparse.urlparse(url)[2])
-        else:
-            self.url_ok(url, True)   # raises error if not allowed
-            return self._attempt_download(url, filename)
+    def _download_url(self, url, tmpdir):
+        """
+        Determine the download filename.
+        """
+        filename = self._resolve_download_filename(url, tmpdir)
+        return self._download_vcs(url, filename) or self._download_other(url, filename)
 
+    @staticmethod
+    def _resolve_vcs(url):
+        """
+        >>> rvcs = PackageIndex._resolve_vcs
+        >>> rvcs('git+http://foo/bar')
+        'git'
+        >>> rvcs('hg+https://foo/bar')
+        'hg'
+        >>> rvcs('git:myhost')
+        'git'
+        >>> rvcs('hg:myhost')
+        >>> rvcs('http://foo/bar')
+        """
+        scheme = urllib.parse.urlsplit(url).scheme
+        pre, sep, _post = scheme.partition('+')
+        # svn and git have their own protocol; hg does not
+        allowed = set(['svn', 'git'] + ['hg'] * bool(sep))
+        return next(iter({pre} & allowed), None)
+
+    def _download_vcs(self, url, spec_filename):
+        vcs = self._resolve_vcs(url)
+        if not vcs:
+            return None
+        if vcs == 'svn':
+            raise DistutilsError(
+                f"Invalid config, SVN download is not supported: {url}"
+            )
 
+        filename, _, _ = spec_filename.partition('#')
+        url, rev = self._vcs_split_rev_from_url(url)
 
-    def scan_url(self, url):
-        self.process_url(url, True)
+        self.info(f"Doing {vcs} clone from {url} to {filename}")
+        subprocess.check_call([vcs, 'clone', '--quiet', url, filename])
 
+        co_commands = dict(
+            git=[vcs, '-C', filename, 'checkout', '--quiet', rev],
+            hg=[vcs, '--cwd', filename, 'up', '-C', '-r', rev, '-q'],
+        )
+        if rev is not None:
+            self.info(f"Checking out {rev}")
+            subprocess.check_call(co_commands[vcs])
+
+        return filename
+
+    def _download_other(self, url, filename):
+        scheme = urllib.parse.urlsplit(url).scheme
+        if scheme == 'file':  # pragma: no cover
+            return urllib.request.url2pathname(urllib.parse.urlparse(url).path)
+        # raise error if not allowed
+        self.url_ok(url, True)
+        return self._attempt_download(url, filename)
+
+    def scan_url(self, url) -> None:
+        self.process_url(url, True)
 
     def _attempt_download(self, url, filename):
         headers = self._download_to(url, filename)
-        if 'html' in headers.get('content-type','').lower():
-            return self._download_html(url, headers, filename)
+        if 'html' in headers.get('content-type', '').lower():
+            return self._invalid_download_html(url, headers, filename)
         else:
             return filename
 
-    def _download_html(self, url, headers, filename):
-        file = open(filename)
-        for line in file:
-            if line.strip():
-                # Check for a subversion index page
-                if re.search(r'([^- ]+ - )?Revision \d+:', line):
-                    # it's a subversion index page:
-                    file.close()
-                    os.unlink(filename)
-                    return self._download_svn(url, filename)
-                break   # not an index page
-        file.close()
+    def _invalid_download_html(self, url, headers, filename):
         os.unlink(filename)
-        raise DistutilsError("Unexpected HTML page found at "+url)
+        raise DistutilsError(f"Unexpected HTML page found at {url}")
 
-    def _download_svn(self, url, filename):
-        url = url.split('#',1)[0]   # remove any fragment for svn's sake
-        self.info("Doing subversion checkout from %s to %s", url, filename)
-        os.system("svn checkout -q %s %s" % (url, filename))
-        return filename
+    @staticmethod
+    def _vcs_split_rev_from_url(url):
+        """
+        Given a possible VCS URL, return a clean URL and resolved revision if any.
+
+        >>> vsrfu = PackageIndex._vcs_split_rev_from_url
+        >>> vsrfu('git+https://github.com/pypa/setuptools@v69.0.0#egg-info=setuptools')
+        ('https://github.com/pypa/setuptools', 'v69.0.0')
+        >>> vsrfu('git+https://github.com/pypa/setuptools#egg-info=setuptools')
+        ('https://github.com/pypa/setuptools', None)
+        >>> vsrfu('http://foo/bar')
+        ('http://foo/bar', None)
+        """
+        parts = urllib.parse.urlsplit(url)
+
+        clean_scheme = parts.scheme.split('+', 1)[-1]
+
+        # Some fragment identification fails
+        no_fragment_path, _, _ = parts.path.partition('#')
+
+        pre, sep, post = no_fragment_path.rpartition('@')
+        clean_path, rev = (pre, post) if sep else (post, None)
+
+        resolved = parts._replace(
+            scheme=clean_scheme,
+            path=clean_path,
+            # discard the fragment
+            fragment='',
+        ).geturl()
+
+        return resolved, rev
 
-    def debug(self, msg, *args):
+    def debug(self, msg, *args) -> None:
         log.debug(msg, *args)
 
-    def info(self, msg, *args):
+    def info(self, msg, *args) -> None:
         log.info(msg, *args)
 
-    def warn(self, msg, *args):
+    def warn(self, msg, *args) -> None:
         log.warn(msg, *args)
 
+
 # This pattern matches a character entity reference (a decimal numeric
 # references, a hexadecimal numeric reference, or a named reference).
 entity_sub = re.compile(r'&(#(\d+|x[\da-fA-F]+)|[\w.:-]+);?').sub
 
-def uchr(c):
-    if not isinstance(c, int):
-        return c
-    if c>255: return unichr(c)
-    return chr(c)
 
 def decode_entity(match):
-    what = match.group(1)
-    if what.startswith('#x'):
-        what = int(what[2:], 16)
-    elif what.startswith('#'):
-        what = int(what[1:])
-    else:
-        from htmlentitydefs import name2codepoint
-        what = name2codepoint.get(what, match.group(0))
-    return uchr(what)
+    what = match.group(0)
+    return html.unescape(what)
+
 
 def htmldecode(text):
-    """Decode HTML entities in the given text."""
-    return entity_sub(decode_entity, text)
+    """
+    Decode HTML entities in the given text.
 
+    >>> htmldecode(
+    ...     'https://../package_name-0.1.2.tar.gz'
+    ...     '?tokena=A&tokenb=B">package_name-0.1.2.tar.gz')
+    'https://../package_name-0.1.2.tar.gz?tokena=A&tokenb=B">package_name-0.1.2.tar.gz'
+    """
+    return entity_sub(decode_entity, text)
 
 
+def socket_timeout(timeout=15):
+    def _socket_timeout(func):
+        def _socket_timeout(*args, **kwargs):
+            old_timeout = socket.getdefaulttimeout()
+            socket.setdefaulttimeout(timeout)
+            try:
+                return func(*args, **kwargs)
+            finally:
+                socket.setdefaulttimeout(old_timeout)
 
+        return _socket_timeout
 
+    return _socket_timeout
 
 
+def _encode_auth(auth):
+    """
+    Encode auth from a URL suitable for an HTTP header.
+    >>> str(_encode_auth('username%3Apassword'))
+    'dXNlcm5hbWU6cGFzc3dvcmQ='
+
+    Long auth strings should not cause a newline to be inserted.
+    >>> long_auth = 'username:' + 'password'*10
+    >>> chr(10) in str(_encode_auth(long_auth))
+    False
+    """
+    auth_s = urllib.parse.unquote(auth)
+    # convert to bytes
+    auth_bytes = auth_s.encode()
+    encoded_bytes = base64.b64encode(auth_bytes)
+    # convert back to a string
+    encoded = encoded_bytes.decode()
+    # strip the trailing carriage return
+    return encoded.replace('\n', '')
 
 
+class Credential(NamedTuple):
+    """
+    A username/password pair.
 
+    Displayed separated by `:`.
+    >>> str(Credential('username', 'password'))
+    'username:password'
+    """
 
+    username: str
+    password: str
 
+    def __str__(self) -> str:
+        return f'{self.username}:{self.password}'
 
 
+class PyPIConfig(configparser.RawConfigParser):
+    def __init__(self):
+        """
+        Load from ~/.pypirc
+        """
+        defaults = dict.fromkeys(['username', 'password', 'repository'], '')
+        super().__init__(defaults)
+
+        rc = os.path.join(os.path.expanduser('~'), '.pypirc')
+        if os.path.exists(rc):
+            _cfg_read_utf8_with_fallback(self, rc)
+
+    @property
+    def creds_by_repository(self):
+        sections_with_repositories = [
+            section
+            for section in self.sections()
+            if self.get(section, 'repository').strip()
+        ]
+
+        return dict(map(self._get_repo_cred, sections_with_repositories))
+
+    def _get_repo_cred(self, section):
+        repo = self.get(section, 'repository').strip()
+        return repo, Credential(
+            self.get(section, 'username').strip(),
+            self.get(section, 'password').strip(),
+        )
 
+    def find_credential(self, url):
+        """
+        If the URL indicated appears to be a repository defined in this
+        config, return the credential for that repository.
+        """
+        for repository, cred in self.creds_by_repository.items():
+            if url.startswith(repository):
+                return cred
+        return None
 
 
-def open_with_auth(url):
+def open_with_auth(url, opener=urllib.request.urlopen):
     """Open a urllib2 request, handling HTTP authentication"""
 
-    scheme, netloc, path, params, query, frag = urlparse.urlparse(url)
+    parsed = urllib.parse.urlparse(url)
+    scheme, netloc, path, params, query, frag = parsed
+
+    # Double scheme does not raise on macOS as revealed by a
+    # failing test. We would expect "nonnumeric port". Refs #20.
+    if netloc.endswith(':'):
+        raise http.client.InvalidURL("nonnumeric port: ''")
 
     if scheme in ('http', 'https'):
-        auth, host = urllib2.splituser(netloc)
+        auth, address = _splituser(netloc)
     else:
-        auth = None
+        auth, address = (None, None)
+
+    if not auth:
+        cred = PyPIConfig().find_credential(url)
+        if cred:
+            auth = str(cred)
+            info = cred.username, url
+            log.info('Authenticating as %s for %s (from .pypirc)', *info)
 
     if auth:
-        auth = "Basic " + urllib2.unquote(auth).encode('base64').strip()
-        new_url = urlparse.urlunparse((scheme,host,path,params,query,frag))
-        request = urllib2.Request(new_url)
+        auth = "Basic " + _encode_auth(auth)
+        parts = scheme, address, path, params, query, frag
+        new_url = urllib.parse.urlunparse(parts)
+        request = urllib.request.Request(new_url)
         request.add_header("Authorization", auth)
     else:
-        request = urllib2.Request(url)
+        request = urllib.request.Request(url)
 
     request.add_header('User-Agent', user_agent)
-    fp = urllib2.urlopen(request)
+    fp = opener(request)
 
     if auth:
         # Put authentication info back into request URL if same host,
         # so that links found on the page will work
-        s2, h2, path2, param2, query2, frag2 = urlparse.urlparse(fp.url)
-        if s2==scheme and h2==host:
-            fp.url = urlparse.urlunparse((s2,netloc,path2,param2,query2,frag2))
+        s2, h2, path2, param2, query2, frag2 = urllib.parse.urlparse(fp.url)
+        if s2 == scheme and h2 == address:
+            parts = s2, netloc, path2, param2, query2, frag2
+            fp.url = urllib.parse.urlunparse(parts)
 
     return fp
 
 
+# copy of urllib.parse._splituser from Python 3.8
+# See https://github.com/python/cpython/issues/80072.
+def _splituser(host):
+    """splituser('user[:passwd]@host[:port]')
+    --> 'user[:passwd]', 'host[:port]'."""
+    user, delim, host = host.rpartition('@')
+    return (user if delim else None), host
 
 
-
-
-
-
-
-
+# adding a timeout to avoid freezing package_index
+open_with_auth = socket_timeout(_SOCKET_TIMEOUT)(open_with_auth)
 
 
 def fix_sf_url(url):
-    return url      # backward compatibility
+    return url  # backward compatibility
+
 
 def local_open(url):
     """Read a local path, with special support for directories"""
-    scheme, server, path, param, query, frag = urlparse.urlparse(url)
-    filename = urllib2.url2pathname(path)
+    _scheme, _server, path, _param, _query, _frag = urllib.parse.urlparse(url)
+    filename = urllib.request.url2pathname(path)
     if os.path.isfile(filename):
-        return urllib2.urlopen(url)
+        return urllib.request.urlopen(url)
     elif path.endswith('/') and os.path.isdir(filename):
         files = []
         for f in os.listdir(filename):
-            if f=='index.html':
-                fp = open(os.path.join(filename,f),'rb')
-                body = fp.read()
-                fp.close()
+            filepath = os.path.join(filename, f)
+            if f == 'index.html':
+                body = _read_utf8_with_fallback(filepath)
                 break
-            elif os.path.isdir(os.path.join(filename,f)):
-                f+='/'
-            files.append("<a href=%r>%s</a>" % (f,f))
+            elif os.path.isdir(filepath):
+                f += '/'
+            files.append(f'<a href="{f}">{f}</a>')
         else:
-            body = ("<html><head><title>%s" % url) + \
-                "        
         
 %s" % '\n'.join(files)
+            tmpl = "{url}        
         
 {files}"
+            body = tmpl.format(url=url, files='\n'.join(files))
         status, message = 200, "OK"
     else:
         status, message, body = 404, "Path not found", "Not found"
 
-    return urllib2.HTTPError(url, status, message,
-            {'content-type':'text/html'}, cStringIO.StringIO(body))
-
-
-
-
-
-
-
-
-
-
-
-
-
-# this line is a kludge to keep the trailing blank lines for pje's editor
+    headers = {'content-type': 'text/html'}
+    body_stream = io.StringIO(body)
+    return urllib.error.HTTPError(url, status, message, headers, body_stream)
diff --git a/setuptools/sandbox.py b/setuptools/sandbox.py
deleted file mode 100755
index 11c14938c6..0000000000
--- a/setuptools/sandbox.py
+++ /dev/null
@@ -1,251 +0,0 @@
-import os, sys, __builtin__, tempfile, operator
-_os = sys.modules[os.name]
-_file = file
-_open = open
-from distutils.errors import DistutilsError
-__all__ = [
-    "AbstractSandbox", "DirectorySandbox", "SandboxViolation", "run_setup",
-]
-def run_setup(setup_script, args):
-    """Run a distutils setup script, sandboxed in its directory"""
-    old_dir = os.getcwd()
-    save_argv = sys.argv[:]
-    save_path = sys.path[:]
-    setup_dir = os.path.abspath(os.path.dirname(setup_script))
-    temp_dir = os.path.join(setup_dir,'temp')
-    if not os.path.isdir(temp_dir): os.makedirs(temp_dir)
-    save_tmp = tempfile.tempdir
-    save_modules = sys.modules.copy()
-    try:
-        tempfile.tempdir = temp_dir
-        os.chdir(setup_dir)
-        try:
-            sys.argv[:] = [setup_script]+list(args)
-            sys.path.insert(0, setup_dir)
-            DirectorySandbox(setup_dir).run(
-                lambda: execfile(
-                    "setup.py",
-                    {'__file__':setup_script, '__name__':'__main__'}
-                )
-            )
-        except SystemExit, v:
-            if v.args and v.args[0]:
-                raise
-            # Normal exit, just return
-    finally:
-        sys.modules.update(save_modules)
-        for key in list(sys.modules):
-            if key not in save_modules: del sys.modules[key]
-        os.chdir(old_dir)
-        sys.path[:] = save_path
-        sys.argv[:] = save_argv
-        tempfile.tempdir = save_tmp
-
-class AbstractSandbox:
-    """Wrap 'os' module and 'open()' builtin for virtualizing setup scripts"""
-
-    _active = False
-
-    def __init__(self):
-        self._attrs = [
-            name for name in dir(_os)
-                if not name.startswith('_') and hasattr(self,name)
-        ]
-
-    def _copy(self, source):
-        for name in self._attrs:
-            setattr(os, name, getattr(source,name))
-
-    def run(self, func):
-        """Run 'func' under os sandboxing"""
-        try:
-            self._copy(self)
-            __builtin__.file = self._file
-            __builtin__.open = self._open
-            self._active = True
-            return func()
-        finally:
-            self._active = False
-            __builtin__.file = _file
-            __builtin__.open = _open
-            self._copy(_os)
-
-
-    def _mk_dual_path_wrapper(name):
-        original = getattr(_os,name)
-        def wrap(self,src,dst,*args,**kw):
-            if self._active:
-                src,dst = self._remap_pair(name,src,dst,*args,**kw)
-            return original(src,dst,*args,**kw)
-        return wrap
-
-
-    for name in ["rename", "link", "symlink"]:
-        if hasattr(_os,name): locals()[name] = _mk_dual_path_wrapper(name)
-
-
-    def _mk_single_path_wrapper(name, original=None):
-        original = original or getattr(_os,name)
-        def wrap(self,path,*args,**kw):
-            if self._active:
-                path = self._remap_input(name,path,*args,**kw)
-            return original(path,*args,**kw)
-        return wrap
-
-    _file = _mk_single_path_wrapper('file', _file)
-    _open = _mk_single_path_wrapper('open', _open)
-    for name in [
-        "stat", "listdir", "chdir", "open", "chmod", "chown", "mkdir",
-        "remove", "unlink", "rmdir", "utime", "lchown", "chroot", "lstat",
-        "startfile", "mkfifo", "mknod", "pathconf", "access"
-    ]:
-        if hasattr(_os,name): locals()[name] = _mk_single_path_wrapper(name)
-
-
-    def _mk_single_with_return(name):
-        original = getattr(_os,name)
-        def wrap(self,path,*args,**kw):
-            if self._active:
-                path = self._remap_input(name,path,*args,**kw)
-                return self._remap_output(name, original(path,*args,**kw))
-            return original(path,*args,**kw)
-        return wrap
-
-    for name in ['readlink', 'tempnam']:
-        if hasattr(_os,name): locals()[name] = _mk_single_with_return(name)
-
-    def _mk_query(name):
-        original = getattr(_os,name)
-        def wrap(self,*args,**kw):
-            retval = original(*args,**kw)
-            if self._active:
-                return self._remap_output(name, retval)
-            return retval
-        return wrap
-
-    for name in ['getcwd', 'tmpnam']:
-        if hasattr(_os,name): locals()[name] = _mk_query(name)
-
-    def _validate_path(self,path):
-        """Called to remap or validate any path, whether input or output"""
-        return path
-
-    def _remap_input(self,operation,path,*args,**kw):
-        """Called for path inputs"""
-        return self._validate_path(path)
-
-    def _remap_output(self,operation,path):
-        """Called for path outputs"""
-        return self._validate_path(path)
-
-    def _remap_pair(self,operation,src,dst,*args,**kw):
-        """Called for path pairs like rename, link, and symlink operations"""
-        return (
-            self._remap_input(operation+'-from',src,*args,**kw),
-            self._remap_input(operation+'-to',dst,*args,**kw)
-        )
-
-
-class DirectorySandbox(AbstractSandbox):
-    """Restrict operations to a single subdirectory - pseudo-chroot"""
-
-    write_ops = dict.fromkeys([
-        "open", "chmod", "chown", "mkdir", "remove", "unlink", "rmdir",
-        "utime", "lchown", "chroot", "mkfifo", "mknod", "tempnam",
-    ])
-
-    def __init__(self,sandbox):
-        self._sandbox = os.path.normcase(os.path.realpath(sandbox))
-        self._prefix = os.path.join(self._sandbox,'')
-        AbstractSandbox.__init__(self)
-
-    def _violation(self, operation, *args, **kw):
-        raise SandboxViolation(operation, args, kw)
-
-    def _open(self, path, mode='r', *args, **kw):
-        if mode not in ('r', 'rt', 'rb', 'rU', 'U') and not self._ok(path):
-            self._violation("open", path, mode, *args, **kw)
-        return _open(path,mode,*args,**kw)
-
-    def tmpnam(self):
-        self._violation("tmpnam")
-
-    def _ok(self,path):
-        active = self._active
-        try:
-            self._active = False
-            realpath = os.path.normcase(os.path.realpath(path))
-            if realpath==self._sandbox or realpath.startswith(self._prefix):
-                return True
-        finally:
-            self._active = active
-
-    def _remap_input(self,operation,path,*args,**kw):
-        """Called for path inputs"""
-        if operation in self.write_ops and not self._ok(path):
-            self._violation(operation, os.path.realpath(path), *args, **kw)
-        return path
-
-    def _remap_pair(self,operation,src,dst,*args,**kw):
-        """Called for path pairs like rename, link, and symlink operations"""
-        if not self._ok(src) or not self._ok(dst):
-            self._violation(operation, src, dst, *args, **kw)
-        return (src,dst)
-
-    def open(self, file, flags, mode=0777):
-        """Called for low-level os.open()"""
-        if flags & WRITE_FLAGS and not self._ok(file):
-            self._violation("os.open", file, flags, mode)
-        return _os.open(file,flags,mode)
-
-
-WRITE_FLAGS = reduce(
-    operator.or_,
-    [getattr(_os, a, 0) for a in
-        "O_WRONLY O_RDWR O_APPEND O_CREAT O_TRUNC O_TEMPORARY".split()]
-)
-
-
-
-
-class SandboxViolation(DistutilsError):
-    """A setup script attempted to modify the filesystem outside the sandbox"""
-
-    def __str__(self):
-        return """SandboxViolation: %s%r %s
-
-The package setup script has attempted to modify files on your system
-that are not within the EasyInstall build area, and has been aborted.
-
-This package cannot be safely installed by EasyInstall, and may not
-support alternate installation locations even if you run its setup
-script by hand.  Please inform the package's author and the EasyInstall
-maintainers to find out if a fix or workaround is available.""" % self.args
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-#
diff --git a/setuptools/script (dev).tmpl b/setuptools/script (dev).tmpl
new file mode 100644
index 0000000000..39a24b0488
--- /dev/null
+++ b/setuptools/script (dev).tmpl	
@@ -0,0 +1,6 @@
+# EASY-INSTALL-DEV-SCRIPT: %(spec)r,%(script_name)r
+__requires__ = %(spec)r
+__import__('pkg_resources').require(%(spec)r)
+__file__ = %(dev_path)r
+with open(__file__) as f:
+    exec(compile(f.read(), __file__, 'exec'))
diff --git a/setuptools/script.tmpl b/setuptools/script.tmpl
new file mode 100644
index 0000000000..ff5efbcab3
--- /dev/null
+++ b/setuptools/script.tmpl
@@ -0,0 +1,3 @@
+# EASY-INSTALL-SCRIPT: %(spec)r,%(script_name)r
+__requires__ = %(spec)r
+__import__('pkg_resources').run_script(%(spec)r, %(script_name)r)
diff --git a/setuptools/tests/__init__.py b/setuptools/tests/__init__.py
index f540103ec2..eb70bfb711 100644
--- a/setuptools/tests/__init__.py
+++ b/setuptools/tests/__init__.py
@@ -1,370 +1,13 @@
-"""Tests for the 'setuptools' package"""
-from unittest import TestSuite, TestCase, makeSuite, defaultTestLoader
-import distutils.core, distutils.cmd
-from distutils.errors import DistutilsOptionError, DistutilsPlatformError
-from distutils.errors import DistutilsSetupError
-import setuptools, setuptools.dist
-from setuptools import Feature
-from distutils.core import Extension
-extract_constant, get_module_constant = None, None
-from setuptools.depends import *
-from distutils.version import StrictVersion, LooseVersion
-from distutils.util import convert_path
-import sys, os.path
-
-def additional_tests():
-    import doctest, unittest
-    suite = unittest.TestSuite((
-        doctest.DocFileSuite(
-            os.path.join('tests', 'api_tests.txt'),
-            optionflags=doctest.ELLIPSIS, package='pkg_resources',
-            ),
-        ))
-    if sys.platform == 'win32':
-        suite.addTest(doctest.DocFileSuite('win_script_wrapper.txt'))
-    return suite
-
-def makeSetup(**args):
-    """Return distribution from 'setup(**args)', without executing commands"""
-
-    distutils.core._setup_stop_after = "commandline"
-
-    # Don't let system command line leak into tests!
-    args.setdefault('script_args',['install'])
-
-    try:
-        return setuptools.setup(**args)
-    finally:
-        distutils.core_setup_stop_after = None
-
-
-
-
-class DependsTests(TestCase):
-
-    def testExtractConst(self):
-        if not extract_constant: return  # skip on non-bytecode platforms
-
-        def f1():
-            global x,y,z
-            x = "test"
-            y = z
-
-        # unrecognized name
-        self.assertEqual(extract_constant(f1.func_code,'q', -1), None)
-
-        # constant assigned
-        self.assertEqual(extract_constant(f1.func_code,'x', -1), "test")
-
-        # expression assigned
-        self.assertEqual(extract_constant(f1.func_code,'y', -1), -1)
-
-        # recognized name, not assigned
-        self.assertEqual(extract_constant(f1.func_code,'z', -1), None)
-
-
-    def testFindModule(self):
-        self.assertRaises(ImportError, find_module, 'no-such.-thing')
-        self.assertRaises(ImportError, find_module, 'setuptools.non-existent')
-        f,p,i = find_module('setuptools.tests'); f.close()
-
-    def testModuleExtract(self):
-        if not get_module_constant: return  # skip on non-bytecode platforms
-        from email import __version__
-        self.assertEqual(
-            get_module_constant('email','__version__'), __version__
-        )
-        self.assertEqual(
-            get_module_constant('sys','version'), sys.version
-        )
-        self.assertEqual(
-            get_module_constant('setuptools.tests','__doc__'),__doc__
-        )
-
-    def testRequire(self):
-        if not extract_constant: return  # skip on non-bytecode platforms
-
-        req = Require('Email','1.0.3','email')
-
-        self.assertEqual(req.name, 'Email')
-        self.assertEqual(req.module, 'email')
-        self.assertEqual(req.requested_version, '1.0.3')
-        self.assertEqual(req.attribute, '__version__')
-        self.assertEqual(req.full_name(), 'Email-1.0.3')
-
-        from email import __version__
-        self.assertEqual(req.get_version(), __version__)
-        self.failUnless(req.version_ok('1.0.9'))
-        self.failIf(req.version_ok('0.9.1'))
-        self.failIf(req.version_ok('unknown'))
-
-        self.failUnless(req.is_present())
-        self.failUnless(req.is_current())
-
-        req = Require('Email 3000','03000','email',format=LooseVersion)
-        self.failUnless(req.is_present())
-        self.failIf(req.is_current())
-        self.failIf(req.version_ok('unknown'))
-
-        req = Require('Do-what-I-mean','1.0','d-w-i-m')
-        self.failIf(req.is_present())
-        self.failIf(req.is_current())
-
-        req = Require('Tests', None, 'tests', homepage="http://example.com")
-        self.assertEqual(req.format, None)
-        self.assertEqual(req.attribute, None)
-        self.assertEqual(req.requested_version, None)
-        self.assertEqual(req.full_name(), 'Tests')
-        self.assertEqual(req.homepage, 'http://example.com')
-
-        paths = [os.path.dirname(p) for p in __path__]
-        self.failUnless(req.is_present(paths))
-        self.failUnless(req.is_current(paths))
-
-
-class DistroTests(TestCase):
-
-    def setUp(self):
-        self.e1 = Extension('bar.ext',['bar.c'])
-        self.e2 = Extension('c.y', ['y.c'])
-
-        self.dist = makeSetup(
-            packages=['a', 'a.b', 'a.b.c', 'b', 'c'],
-            py_modules=['b.d','x'],
-            ext_modules = (self.e1, self.e2),
-            package_dir = {},
-        )
-
-
-    def testDistroType(self):
-        self.failUnless(isinstance(self.dist,setuptools.dist.Distribution))
-
-
-    def testExcludePackage(self):
-        self.dist.exclude_package('a')
-        self.assertEqual(self.dist.packages, ['b','c'])
-
-        self.dist.exclude_package('b')
-        self.assertEqual(self.dist.packages, ['c'])
-        self.assertEqual(self.dist.py_modules, ['x'])
-        self.assertEqual(self.dist.ext_modules, [self.e1, self.e2])
-
-        self.dist.exclude_package('c')
-        self.assertEqual(self.dist.packages, [])
-        self.assertEqual(self.dist.py_modules, ['x'])
-        self.assertEqual(self.dist.ext_modules, [self.e1])
-
-        # test removals from unspecified options
-        makeSetup().exclude_package('x')
-
-
-
-
-
-
-
-    def testIncludeExclude(self):
-        # remove an extension
-        self.dist.exclude(ext_modules=[self.e1])
-        self.assertEqual(self.dist.ext_modules, [self.e2])
-
-        # add it back in
-        self.dist.include(ext_modules=[self.e1])
-        self.assertEqual(self.dist.ext_modules, [self.e2, self.e1])
-
-        # should not add duplicate
-        self.dist.include(ext_modules=[self.e1])
-        self.assertEqual(self.dist.ext_modules, [self.e2, self.e1])
-
-    def testExcludePackages(self):
-        self.dist.exclude(packages=['c','b','a'])
-        self.assertEqual(self.dist.packages, [])
-        self.assertEqual(self.dist.py_modules, ['x'])
-        self.assertEqual(self.dist.ext_modules, [self.e1])
-
-    def testEmpty(self):
-        dist = makeSetup()
-        dist.include(packages=['a'], py_modules=['b'], ext_modules=[self.e2])
-        dist = makeSetup()
-        dist.exclude(packages=['a'], py_modules=['b'], ext_modules=[self.e2])
-
-    def testContents(self):
-        self.failUnless(self.dist.has_contents_for('a'))
-        self.dist.exclude_package('a')
-        self.failIf(self.dist.has_contents_for('a'))
-
-        self.failUnless(self.dist.has_contents_for('b'))
-        self.dist.exclude_package('b')
-        self.failIf(self.dist.has_contents_for('b'))
-
-        self.failUnless(self.dist.has_contents_for('c'))
-        self.dist.exclude_package('c')
-        self.failIf(self.dist.has_contents_for('c'))
-
-
-
-
-    def testInvalidIncludeExclude(self):
-        self.assertRaises(DistutilsSetupError,
-            self.dist.include, nonexistent_option='x'
-        )
-        self.assertRaises(DistutilsSetupError,
-            self.dist.exclude, nonexistent_option='x'
-        )
-        self.assertRaises(DistutilsSetupError,
-            self.dist.include, packages={'x':'y'}
-        )
-        self.assertRaises(DistutilsSetupError,
-            self.dist.exclude, packages={'x':'y'}
-        )
-        self.assertRaises(DistutilsSetupError,
-            self.dist.include, ext_modules={'x':'y'}
-        )
-        self.assertRaises(DistutilsSetupError,
-            self.dist.exclude, ext_modules={'x':'y'}
-        )
-
-        self.assertRaises(DistutilsSetupError,
-            self.dist.include, package_dir=['q']
-        )
-        self.assertRaises(DistutilsSetupError,
-            self.dist.exclude, package_dir=['q']
-        )
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-class FeatureTests(TestCase):
-
-    def setUp(self):
-        self.req = Require('Distutils','1.0.3','distutils')
-        self.dist = makeSetup(
-            features={
-                'foo': Feature("foo",standard=True,require_features=['baz',self.req]),
-                'bar': Feature("bar",  standard=True, packages=['pkg.bar'],
-                               py_modules=['bar_et'], remove=['bar.ext'],
-                       ),
-                'baz': Feature(
-                        "baz", optional=False, packages=['pkg.baz'],
-                        scripts = ['scripts/baz_it'],
-                        libraries=[('libfoo','foo/foofoo.c')]
-                       ),
-                'dwim': Feature("DWIM", available=False, remove='bazish'),
-            },
-            script_args=['--without-bar', 'install'],
-            packages = ['pkg.bar', 'pkg.foo'],
-            py_modules = ['bar_et', 'bazish'],
-            ext_modules = [Extension('bar.ext',['bar.c'])]
-        )
-
-    def testDefaults(self):
-        self.failIf(
-            Feature(
-                "test",standard=True,remove='x',available=False
-            ).include_by_default()
-        )
-        self.failUnless(
-            Feature("test",standard=True,remove='x').include_by_default()
-        )
-        # Feature must have either kwargs, removes, or require_features
-        self.assertRaises(DistutilsSetupError, Feature, "test")
-
-    def testAvailability(self):
-        self.assertRaises(
-            DistutilsPlatformError,
-            self.dist.features['dwim'].include_in, self.dist
-        )
-
-    def testFeatureOptions(self):
-        dist = self.dist
-        self.failUnless(
-            ('with-dwim',None,'include DWIM') in dist.feature_options
-        )
-        self.failUnless(
-            ('without-dwim',None,'exclude DWIM (default)') in dist.feature_options
-        )
-        self.failUnless(
-            ('with-bar',None,'include bar (default)') in dist.feature_options
-        )
-        self.failUnless(
-            ('without-bar',None,'exclude bar') in dist.feature_options
-        )
-        self.assertEqual(dist.feature_negopt['without-foo'],'with-foo')
-        self.assertEqual(dist.feature_negopt['without-bar'],'with-bar')
-        self.assertEqual(dist.feature_negopt['without-dwim'],'with-dwim')
-        self.failIf('without-baz' in dist.feature_negopt)
-
-    def testUseFeatures(self):
-        dist = self.dist
-        self.assertEqual(dist.with_foo,1)
-        self.assertEqual(dist.with_bar,0)
-        self.assertEqual(dist.with_baz,1)
-        self.failIf('bar_et' in dist.py_modules)
-        self.failIf('pkg.bar' in dist.packages)
-        self.failUnless('pkg.baz' in dist.packages)
-        self.failUnless('scripts/baz_it' in dist.scripts)
-        self.failUnless(('libfoo','foo/foofoo.c') in dist.libraries)
-        self.assertEqual(dist.ext_modules,[])
-        self.assertEqual(dist.require_features, [self.req])
-
-        # If we ask for bar, it should fail because we explicitly disabled
-        # it on the command line
-        self.assertRaises(DistutilsOptionError, dist.include_feature, 'bar')
-
-    def testFeatureWithInvalidRemove(self):
-        self.assertRaises(
-            SystemExit, makeSetup, features = {'x':Feature('x', remove='y')}
-        )
-
-class TestCommandTests(TestCase):
-
-    def testTestIsCommand(self):
-        test_cmd = makeSetup().get_command_obj('test')
-        self.failUnless(isinstance(test_cmd, distutils.cmd.Command))
-
-    def testLongOptSuiteWNoDefault(self):
-        ts1 = makeSetup(script_args=['test','--test-suite=foo.tests.suite'])
-        ts1 = ts1.get_command_obj('test')
-        ts1.ensure_finalized()
-        self.assertEqual(ts1.test_suite, 'foo.tests.suite')
-
-    def testDefaultSuite(self):
-        ts2 = makeSetup(test_suite='bar.tests.suite').get_command_obj('test')
-        ts2.ensure_finalized()
-        self.assertEqual(ts2.test_suite, 'bar.tests.suite')
-
-    def testDefaultWModuleOnCmdLine(self):
-        ts3 = makeSetup(
-            test_suite='bar.tests',
-            script_args=['test','-m','foo.tests']
-        ).get_command_obj('test')
-        ts3.ensure_finalized()
-        self.assertEqual(ts3.test_module, 'foo.tests')
-        self.assertEqual(ts3.test_suite,  'foo.tests.test_suite')
-
-    def testConflictingOptions(self):
-        ts4 = makeSetup(
-            script_args=['test','-m','bar.tests', '-s','foo.tests.suite']
-        ).get_command_obj('test')
-        self.assertRaises(DistutilsOptionError, ts4.ensure_finalized)
-
-    def testNoSuite(self):
-        ts5 = makeSetup().get_command_obj('test')
-        ts5.ensure_finalized()
-        self.assertEqual(ts5.test_suite, None)
-
-
+import locale
+import sys
 
+import pytest
 
+__all__ = ['fail_on_ascii']
 
+if sys.version_info >= (3, 11):
+    locale_encoding = locale.getencoding()
+else:
+    locale_encoding = locale.getpreferredencoding(False)
+is_ascii = locale_encoding == 'ANSI_X3.4-1968'
+fail_on_ascii = pytest.mark.xfail(is_ascii, reason="Test fails in this locale")
diff --git a/setuptools/tests/compat/__init__.py b/setuptools/tests/compat/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/setuptools/tests/compat/py39.py b/setuptools/tests/compat/py39.py
new file mode 100644
index 0000000000..1fdb9dac1f
--- /dev/null
+++ b/setuptools/tests/compat/py39.py
@@ -0,0 +1,3 @@
+from jaraco.test.cpython import from_test_support, try_import
+
+os_helper = try_import('os_helper') or from_test_support('can_symlink')
diff --git a/setuptools/tests/config/__init__.py b/setuptools/tests/config/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/setuptools/tests/config/downloads/.gitignore b/setuptools/tests/config/downloads/.gitignore
new file mode 100644
index 0000000000..df3779fc42
--- /dev/null
+++ b/setuptools/tests/config/downloads/.gitignore
@@ -0,0 +1,4 @@
+*
+!.gitignore
+!__init__.py
+!preload.py
diff --git a/setuptools/tests/config/downloads/__init__.py b/setuptools/tests/config/downloads/__init__.py
new file mode 100644
index 0000000000..00a16423f4
--- /dev/null
+++ b/setuptools/tests/config/downloads/__init__.py
@@ -0,0 +1,59 @@
+from __future__ import annotations
+
+import re
+import time
+from pathlib import Path
+from urllib.error import HTTPError
+from urllib.request import urlopen
+
+__all__ = ["DOWNLOAD_DIR", "retrieve_file", "output_file", "urls_from_file"]
+
+
+NAME_REMOVE = ("http://", "https://", "github.com/", "/raw/")
+DOWNLOAD_DIR = Path(__file__).parent
+
+
+# ----------------------------------------------------------------------
+# Please update ./preload.py accordingly when modifying this file
+# ----------------------------------------------------------------------
+
+
+def output_file(url: str, download_dir: Path = DOWNLOAD_DIR) -> Path:
+    file_name = url.strip()
+    for part in NAME_REMOVE:
+        file_name = file_name.replace(part, '').strip().strip('/:').strip()
+    return Path(download_dir, re.sub(r"[^\-_\.\w\d]+", "_", file_name))
+
+
+def retrieve_file(url: str, download_dir: Path = DOWNLOAD_DIR, wait: float = 5) -> Path:
+    path = output_file(url, download_dir)
+    if path.exists():
+        print(f"Skipping {url} (already exists: {path})")
+    else:
+        download_dir.mkdir(exist_ok=True, parents=True)
+        print(f"Downloading {url} to {path}")
+        try:
+            download(url, path)
+        except HTTPError:
+            time.sleep(wait)  # wait a few seconds and try again.
+            download(url, path)
+    return path
+
+
+def urls_from_file(list_file: Path) -> list[str]:
+    """``list_file`` should be a text file where each line corresponds to a URL to
+    download.
+    """
+    print(f"file: {list_file}")
+    content = list_file.read_text(encoding="utf-8")
+    return [url for url in content.splitlines() if not url.startswith("#")]
+
+
+def download(url: str, dest: Path):
+    with urlopen(url) as f:
+        data = f.read()
+
+    with open(dest, "wb") as f:
+        f.write(data)
+
+    assert Path(dest).exists()
diff --git a/setuptools/tests/config/downloads/preload.py b/setuptools/tests/config/downloads/preload.py
new file mode 100644
index 0000000000..8eeb5dd75d
--- /dev/null
+++ b/setuptools/tests/config/downloads/preload.py
@@ -0,0 +1,18 @@
+"""This file can be used to preload files needed for testing.
+
+For example you can use::
+
+    cd setuptools/tests/config
+    python -m downloads.preload setupcfg_examples.txt
+
+to make sure the `setup.cfg` examples are downloaded before starting the tests.
+"""
+
+import sys
+from pathlib import Path
+
+from . import retrieve_file, urls_from_file
+
+if __name__ == "__main__":
+    urls = urls_from_file(Path(sys.argv[1]))
+    list(map(retrieve_file, urls))
diff --git a/setuptools/tests/config/setupcfg_examples.txt b/setuptools/tests/config/setupcfg_examples.txt
new file mode 100644
index 0000000000..6aab887ff1
--- /dev/null
+++ b/setuptools/tests/config/setupcfg_examples.txt
@@ -0,0 +1,22 @@
+# ====================================================================
+# Some popular packages that use setup.cfg (and others not so popular)
+# Reference: https://hugovk.github.io/top-pypi-packages/
+# ====================================================================
+https://github.com/pypa/setuptools/raw/52c990172fec37766b3566679724aa8bf70ae06d/setup.cfg
+https://github.com/pypa/wheel/raw/0acd203cd896afec7f715aa2ff5980a403459a3b/setup.cfg
+https://github.com/python/importlib_metadata/raw/2f05392ca980952a6960d82b2f2d2ea10aa53239/setup.cfg
+https://github.com/jaraco/skeleton/raw/d9008b5c510cd6969127a6a2ab6f832edddef296/setup.cfg
+https://github.com/jaraco/zipp/raw/700d3a96390e970b6b962823bfea78b4f7e1c537/setup.cfg
+https://github.com/pallets/jinja/raw/7d72eb7fefb7dce065193967f31f805180508448/setup.cfg
+https://github.com/tkem/cachetools/raw/2fd87a94b8d3861d80e9e4236cd480bfdd21c90d/setup.cfg
+https://github.com/aio-libs/aiohttp/raw/5e0e6b7080f2408d5f1dd544c0e1cf88378b7b10/setup.cfg
+https://github.com/pallets/flask/raw/9486b6cf57bd6a8a261f67091aca8ca78eeec1e3/setup.cfg
+https://github.com/pallets/click/raw/6411f425fae545f42795665af4162006b36c5e4a/setup.cfg
+https://github.com/sqlalchemy/sqlalchemy/raw/533f5718904b620be8d63f2474229945d6f8ba5d/setup.cfg
+https://github.com/pytest-dev/pluggy/raw/461ef63291d13589c4e21aa182cd1529257e9a0a/setup.cfg
+https://github.com/pytest-dev/pytest/raw/c7be96dae487edbd2f55b561b31b68afac1dabe6/setup.cfg
+https://github.com/platformdirs/platformdirs/raw/7b7852128dd6f07511b618d6edea35046bd0c6ff/setup.cfg
+https://github.com/pandas-dev/pandas/raw/bc17343f934a33dc231c8c74be95d8365537c376/setup.cfg
+https://github.com/django/django/raw/4e249d11a6e56ca8feb4b055b681cec457ef3a3d/setup.cfg
+https://github.com/pyscaffold/pyscaffold/raw/de7aa5dc059fbd04307419c667cc4961bc9df4b8/setup.cfg
+https://github.com/pypa/virtualenv/raw/f92eda6e3da26a4d28c2663ffb85c4960bdb990c/setup.cfg
diff --git a/setuptools/tests/config/test_apply_pyprojecttoml.py b/setuptools/tests/config/test_apply_pyprojecttoml.py
new file mode 100644
index 0000000000..489fd98e26
--- /dev/null
+++ b/setuptools/tests/config/test_apply_pyprojecttoml.py
@@ -0,0 +1,772 @@
+"""Make sure that applying the configuration from pyproject.toml is equivalent to
+applying a similar configuration from setup.cfg
+
+To run these tests offline, please have a look on ``./downloads/preload.py``
+"""
+
+from __future__ import annotations
+
+import io
+import re
+import tarfile
+from inspect import cleandoc
+from pathlib import Path
+from unittest.mock import Mock
+
+import pytest
+from ini2toml.api import LiteTranslator
+from packaging.metadata import Metadata
+
+import setuptools  # noqa: F401 # ensure monkey patch to metadata
+from setuptools._static import is_static
+from setuptools.command.egg_info import write_requirements
+from setuptools.config import expand, pyprojecttoml, setupcfg
+from setuptools.config._apply_pyprojecttoml import _MissingDynamic, _some_attrgetter
+from setuptools.dist import Distribution
+from setuptools.errors import InvalidConfigError, RemovedConfigError
+from setuptools.warnings import InformationOnly, SetuptoolsDeprecationWarning
+
+from .downloads import retrieve_file, urls_from_file
+
+HERE = Path(__file__).parent
+EXAMPLES_FILE = "setupcfg_examples.txt"
+
+
+def makedist(path, **attrs):
+    return Distribution({"src_root": path, **attrs})
+
+
+def _mock_expand_patterns(patterns, *_, **__):
+    """
+    Allow comparing the given patterns for 2 dist objects.
+    We need to strip special chars to avoid errors when validating.
+    """
+    return [re.sub("[^a-z0-9]+", "", p, flags=re.I) or "empty" for p in patterns]
+
+
+@pytest.mark.parametrize("url", urls_from_file(HERE / EXAMPLES_FILE))
+@pytest.mark.filterwarnings("ignore")
+@pytest.mark.uses_network
+def test_apply_pyproject_equivalent_to_setupcfg(url, monkeypatch, tmp_path):
+    monkeypatch.setattr(expand, "read_attr", Mock(return_value="0.0.1"))
+    monkeypatch.setattr(
+        Distribution, "_expand_patterns", Mock(side_effect=_mock_expand_patterns)
+    )
+    setupcfg_example = retrieve_file(url)
+    pyproject_example = Path(tmp_path, "pyproject.toml")
+    setupcfg_text = setupcfg_example.read_text(encoding="utf-8")
+    toml_config = LiteTranslator().translate(setupcfg_text, "setup.cfg")
+    pyproject_example.write_text(toml_config, encoding="utf-8")
+
+    dist_toml = pyprojecttoml.apply_configuration(makedist(tmp_path), pyproject_example)
+    dist_cfg = setupcfg.apply_configuration(makedist(tmp_path), setupcfg_example)
+
+    pkg_info_toml = core_metadata(dist_toml)
+    pkg_info_cfg = core_metadata(dist_cfg)
+    assert pkg_info_toml == pkg_info_cfg
+
+    if any(getattr(d, "license_files", None) for d in (dist_toml, dist_cfg)):
+        assert set(dist_toml.license_files) == set(dist_cfg.license_files)
+
+    if any(getattr(d, "entry_points", None) for d in (dist_toml, dist_cfg)):
+        print(dist_cfg.entry_points)
+        ep_toml = {
+            (k, *sorted(i.replace(" ", "") for i in v))
+            for k, v in dist_toml.entry_points.items()
+        }
+        ep_cfg = {
+            (k, *sorted(i.replace(" ", "") for i in v))
+            for k, v in dist_cfg.entry_points.items()
+        }
+        assert ep_toml == ep_cfg
+
+    if any(getattr(d, "package_data", None) for d in (dist_toml, dist_cfg)):
+        pkg_data_toml = {(k, *sorted(v)) for k, v in dist_toml.package_data.items()}
+        pkg_data_cfg = {(k, *sorted(v)) for k, v in dist_cfg.package_data.items()}
+        assert pkg_data_toml == pkg_data_cfg
+
+    if any(getattr(d, "data_files", None) for d in (dist_toml, dist_cfg)):
+        data_files_toml = {(k, *sorted(v)) for k, v in dist_toml.data_files}
+        data_files_cfg = {(k, *sorted(v)) for k, v in dist_cfg.data_files}
+        assert data_files_toml == data_files_cfg
+
+    assert set(dist_toml.install_requires) == set(dist_cfg.install_requires)
+    if any(getattr(d, "extras_require", None) for d in (dist_toml, dist_cfg)):
+        extra_req_toml = {(k, *sorted(v)) for k, v in dist_toml.extras_require.items()}
+        extra_req_cfg = {(k, *sorted(v)) for k, v in dist_cfg.extras_require.items()}
+        assert extra_req_toml == extra_req_cfg
+
+
+PEP621_EXAMPLE = """\
+[project]
+name = "spam"
+version = "2020.0.0"
+description = "Lovely Spam! Wonderful Spam!"
+readme = "README.rst"
+requires-python = ">=3.8"
+license-files = ["LICENSE.txt"]  # Updated to be PEP 639 compliant
+keywords = ["egg", "bacon", "sausage", "tomatoes", "Lobster Thermidor"]
+authors = [
+  {email = "hi@pradyunsg.me"},
+  {name = "Tzu-Ping Chung"}
+]
+maintainers = [
+  {name = "Brett Cannon", email = "brett@python.org"},
+  {name = "John X. Ãørçeč", email = "john@utf8.org"},
+  {name = "Γαμα קּ 東", email = "gama@utf8.org"},
+]
+classifiers = [
+  "Development Status :: 4 - Beta",
+  "Programming Language :: Python"
+]
+
+dependencies = [
+  "httpx",
+  "gidgethub[httpx]>4.0.0",
+  "django>2.1; os_name != 'nt'",
+  "django>2.0; os_name == 'nt'"
+]
+
+[project.optional-dependencies]
+test = [
+  "pytest < 5.0.0",
+  "pytest-cov[all]"
+]
+
+[project.urls]
+homepage = "http://example.com"
+documentation = "http://readthedocs.org"
+repository = "http://github.com"
+changelog = "http://github.com/me/spam/blob/master/CHANGELOG.md"
+
+[project.scripts]
+spam-cli = "spam:main_cli"
+
+[project.gui-scripts]
+spam-gui = "spam:main_gui"
+
+[project.entry-points."spam.magical"]
+tomatoes = "spam:main_tomatoes"
+"""
+
+PEP621_INTERNATIONAL_EMAIL_EXAMPLE = """\
+[project]
+name = "spam"
+version = "2020.0.0"
+authors = [
+  {email = "hi@pradyunsg.me"},
+  {name = "Tzu-Ping Chung"}
+]
+maintainers = [
+  {name = "Степан Бандера", email = "криївка@оун-упа.укр"},
+]
+"""
+
+PEP621_EXAMPLE_SCRIPT = """
+def main_cli(): pass
+def main_gui(): pass
+def main_tomatoes(): pass
+"""
+
+PEP639_LICENSE_TEXT = """\
+[project]
+name = "spam"
+version = "2020.0.0"
+authors = [
+  {email = "hi@pradyunsg.me"},
+  {name = "Tzu-Ping Chung"}
+]
+license = {text = "MIT"}
+"""
+
+PEP639_LICENSE_EXPRESSION = """\
+[project]
+name = "spam"
+version = "2020.0.0"
+authors = [
+  {email = "hi@pradyunsg.me"},
+  {name = "Tzu-Ping Chung"}
+]
+license = "mit or apache-2.0"  # should be normalized in metadata
+classifiers = [
+    "Development Status :: 5 - Production/Stable",
+    "Programming Language :: Python",
+]
+"""
+
+
+def _pep621_example_project(
+    tmp_path,
+    readme="README.rst",
+    pyproject_text=PEP621_EXAMPLE,
+):
+    pyproject = tmp_path / "pyproject.toml"
+    text = pyproject_text
+    replacements = {'readme = "README.rst"': f'readme = "{readme}"'}
+    for orig, subst in replacements.items():
+        text = text.replace(orig, subst)
+    pyproject.write_text(text, encoding="utf-8")
+
+    (tmp_path / readme).write_text("hello world", encoding="utf-8")
+    (tmp_path / "LICENSE.txt").write_text("--- LICENSE stub ---", encoding="utf-8")
+    (tmp_path / "spam.py").write_text(PEP621_EXAMPLE_SCRIPT, encoding="utf-8")
+    return pyproject
+
+
+def test_pep621_example(tmp_path):
+    """Make sure the example in PEP 621 works"""
+    pyproject = _pep621_example_project(tmp_path)
+    dist = pyprojecttoml.apply_configuration(makedist(tmp_path), pyproject)
+    assert set(dist.metadata.license_files) == {"LICENSE.txt"}
+
+
+@pytest.mark.parametrize(
+    ("readme", "ctype"),
+    [
+        ("Readme.txt", "text/plain"),
+        ("readme.md", "text/markdown"),
+        ("text.rst", "text/x-rst"),
+    ],
+)
+def test_readme_content_type(tmp_path, readme, ctype):
+    pyproject = _pep621_example_project(tmp_path, readme)
+    dist = pyprojecttoml.apply_configuration(makedist(tmp_path), pyproject)
+    assert dist.metadata.long_description_content_type == ctype
+
+
+def test_undefined_content_type(tmp_path):
+    pyproject = _pep621_example_project(tmp_path, "README.tex")
+    with pytest.raises(ValueError, match="Undefined content type for README.tex"):
+        pyprojecttoml.apply_configuration(makedist(tmp_path), pyproject)
+
+
+def test_no_explicit_content_type_for_missing_extension(tmp_path):
+    pyproject = _pep621_example_project(tmp_path, "README")
+    dist = pyprojecttoml.apply_configuration(makedist(tmp_path), pyproject)
+    assert dist.metadata.long_description_content_type is None
+
+
+@pytest.mark.parametrize(
+    ("pyproject_text", "expected_maintainers_meta_value"),
+    (
+        pytest.param(
+            PEP621_EXAMPLE,
+            (
+                'Brett Cannon , "John X. Ãørçeč" , '
+                'Γαμα קּ 東 '
+            ),
+            id='non-international-emails',
+        ),
+        pytest.param(
+            PEP621_INTERNATIONAL_EMAIL_EXAMPLE,
+            'Степан Бандера <криївка@оун-упа.укр>',
+            marks=pytest.mark.xfail(
+                reason="CPython's `email.headerregistry.Address` only supports "
+                'RFC 5322, as of Nov 10, 2022 and latest Python 3.11.0',
+                strict=True,
+            ),
+            id='international-email',
+        ),
+    ),
+)
+def test_utf8_maintainer_in_metadata(  # issue-3663
+    expected_maintainers_meta_value,
+    pyproject_text,
+    tmp_path,
+):
+    pyproject = _pep621_example_project(
+        tmp_path,
+        "README",
+        pyproject_text=pyproject_text,
+    )
+    dist = pyprojecttoml.apply_configuration(makedist(tmp_path), pyproject)
+    assert dist.metadata.maintainer_email == expected_maintainers_meta_value
+    pkg_file = tmp_path / "PKG-FILE"
+    with open(pkg_file, "w", encoding="utf-8") as fh:
+        dist.metadata.write_pkg_file(fh)
+    content = pkg_file.read_text(encoding="utf-8")
+    assert f"Maintainer-email: {expected_maintainers_meta_value}" in content
+
+
+@pytest.mark.parametrize(
+    (
+        'pyproject_text',
+        'license',
+        'license_expression',
+        'content_str',
+        'not_content_str',
+    ),
+    (
+        pytest.param(
+            PEP639_LICENSE_TEXT,
+            'MIT',
+            None,
+            'License: MIT',
+            'License-Expression: ',
+            id='license-text',
+            marks=[
+                pytest.mark.filterwarnings(
+                    "ignore:.project.license. as a TOML table is deprecated",
+                )
+            ],
+        ),
+        pytest.param(
+            PEP639_LICENSE_EXPRESSION,
+            None,
+            'MIT OR Apache-2.0',
+            'License-Expression: MIT OR Apache-2.0',
+            'License: ',
+            id='license-expression',
+        ),
+    ),
+)
+def test_license_in_metadata(
+    license,
+    license_expression,
+    content_str,
+    not_content_str,
+    pyproject_text,
+    tmp_path,
+):
+    pyproject = _pep621_example_project(
+        tmp_path,
+        "README",
+        pyproject_text=pyproject_text,
+    )
+    dist = pyprojecttoml.apply_configuration(makedist(tmp_path), pyproject)
+    assert dist.metadata.license == license
+    assert dist.metadata.license_expression == license_expression
+    pkg_file = tmp_path / "PKG-FILE"
+    with open(pkg_file, "w", encoding="utf-8") as fh:
+        dist.metadata.write_pkg_file(fh)
+    content = pkg_file.read_text(encoding="utf-8")
+    assert "Metadata-Version: 2.4" in content
+    assert content_str in content
+    assert not_content_str not in content
+
+
+def test_license_classifier_with_license_expression(tmp_path):
+    text = PEP639_LICENSE_EXPRESSION.rsplit("\n", 2)[0]
+    pyproject = _pep621_example_project(
+        tmp_path,
+        "README",
+        f"{text}\n    \"License :: OSI Approved :: MIT License\"\n]",
+    )
+    msg = "License classifiers have been superseded by license expressions"
+    with pytest.raises(InvalidConfigError, match=msg) as exc:
+        pyprojecttoml.apply_configuration(makedist(tmp_path), pyproject)
+
+    assert "License :: OSI Approved :: MIT License" in str(exc.value)
+
+
+def test_license_classifier_without_license_expression(tmp_path):
+    text = """\
+    [project]
+    name = "spam"
+    version = "2020.0.0"
+    license = {text = "mit or apache-2.0"}
+    classifiers = ["License :: OSI Approved :: MIT License"]
+    """
+    pyproject = _pep621_example_project(tmp_path, "README", text)
+
+    msg1 = "License classifiers are deprecated(?:.|\n)*MIT License"
+    msg2 = ".project.license. as a TOML table is deprecated"
+    with (
+        pytest.warns(SetuptoolsDeprecationWarning, match=msg1),
+        pytest.warns(SetuptoolsDeprecationWarning, match=msg2),
+    ):
+        dist = pyprojecttoml.apply_configuration(makedist(tmp_path), pyproject)
+
+    # Check license classifier is still included
+    assert dist.metadata.get_classifiers() == ["License :: OSI Approved :: MIT License"]
+
+
+class TestLicenseFiles:
+    def base_pyproject(
+        self,
+        tmp_path,
+        additional_text="",
+        license_toml='license = {file = "LICENSE.txt"}\n',
+    ):
+        text = PEP639_LICENSE_EXPRESSION
+
+        # Sanity-check
+        assert 'license = "mit or apache-2.0"' in text
+        assert 'license-files' not in text
+        assert "[tool.setuptools]" not in text
+
+        text = re.sub(
+            r"(license = .*)\n",
+            license_toml,
+            text,
+            count=1,
+        )
+        assert license_toml in text  # sanity check
+        text = f"{text}\n{additional_text}\n"
+        pyproject = _pep621_example_project(tmp_path, "README", pyproject_text=text)
+        return pyproject
+
+    def base_pyproject_license_pep639(self, tmp_path, additional_text=""):
+        return self.base_pyproject(
+            tmp_path,
+            additional_text=additional_text,
+            license_toml='license = "licenseref-Proprietary"'
+            '\nlicense-files = ["_FILE*"]\n',
+        )
+
+    def test_both_license_and_license_files_defined(self, tmp_path):
+        setuptools_config = '[tool.setuptools]\nlicense-files = ["_FILE*"]'
+        pyproject = self.base_pyproject(tmp_path, setuptools_config)
+
+        (tmp_path / "_FILE.txt").touch()
+        (tmp_path / "_FILE.rst").touch()
+
+        # Would normally match the `license_files` patterns, but we want to exclude it
+        # by being explicit. On the other hand, contents should be added to `license`
+        license = tmp_path / "LICENSE.txt"
+        license.write_text("LicenseRef-Proprietary\n", encoding="utf-8")
+
+        msg1 = "'tool.setuptools.license-files' is deprecated in favor of 'project.license-files'"
+        msg2 = ".project.license. as a TOML table is deprecated"
+        with (
+            pytest.warns(SetuptoolsDeprecationWarning, match=msg1),
+            pytest.warns(SetuptoolsDeprecationWarning, match=msg2),
+        ):
+            dist = pyprojecttoml.apply_configuration(makedist(tmp_path), pyproject)
+        assert set(dist.metadata.license_files) == {"_FILE.rst", "_FILE.txt"}
+        assert dist.metadata.license == "LicenseRef-Proprietary\n"
+
+    def test_both_license_and_license_files_defined_pep639(self, tmp_path):
+        # Set license and license-files
+        pyproject = self.base_pyproject_license_pep639(tmp_path)
+
+        (tmp_path / "_FILE.txt").touch()
+        (tmp_path / "_FILE.rst").touch()
+
+        msg = "Normalizing.*LicenseRef"
+        with pytest.warns(InformationOnly, match=msg):
+            dist = pyprojecttoml.apply_configuration(makedist(tmp_path), pyproject)
+
+        assert set(dist.metadata.license_files) == {"_FILE.rst", "_FILE.txt"}
+        assert dist.metadata.license is None
+        assert dist.metadata.license_expression == "LicenseRef-Proprietary"
+
+    def test_license_files_defined_twice(self, tmp_path):
+        # Set project.license-files and tools.setuptools.license-files
+        setuptools_config = '[tool.setuptools]\nlicense-files = ["_FILE*"]'
+        pyproject = self.base_pyproject_license_pep639(tmp_path, setuptools_config)
+
+        msg = "'project.license-files' is defined already. Remove 'tool.setuptools.license-files'"
+        with pytest.raises(InvalidConfigError, match=msg):
+            pyprojecttoml.apply_configuration(makedist(tmp_path), pyproject)
+
+    def test_default_patterns(self, tmp_path):
+        setuptools_config = '[tool.setuptools]\nzip-safe = false'
+        # ^ used just to trigger section validation
+        pyproject = self.base_pyproject(tmp_path, setuptools_config, license_toml="")
+
+        license_files = "LICENCE-a.html COPYING-abc.txt AUTHORS-xyz NOTICE,def".split()
+
+        for fname in license_files:
+            (tmp_path / fname).write_text(f"{fname}\n", encoding="utf-8")
+
+        dist = pyprojecttoml.apply_configuration(makedist(tmp_path), pyproject)
+
+        assert (tmp_path / "LICENSE.txt").exists()  # from base example
+        assert set(dist.metadata.license_files) == {*license_files, "LICENSE.txt"}
+
+    def test_missing_patterns(self, tmp_path):
+        pyproject = self.base_pyproject_license_pep639(tmp_path)
+        assert list(tmp_path.glob("_FILE*")) == []  # sanity check
+
+        msg1 = "Cannot find any files for the given pattern.*"
+        msg2 = "Normalizing 'licenseref-Proprietary' to 'LicenseRef-Proprietary'"
+        with (
+            pytest.warns(SetuptoolsDeprecationWarning, match=msg1),
+            pytest.warns(InformationOnly, match=msg2),
+        ):
+            pyprojecttoml.apply_configuration(makedist(tmp_path), pyproject)
+
+    def test_deprecated_file_expands_to_text(self, tmp_path):
+        """Make sure the old example with ``license = {text = ...}`` works"""
+
+        assert 'license-files = ["LICENSE.txt"]' in PEP621_EXAMPLE  # sanity check
+        text = PEP621_EXAMPLE.replace(
+            'license-files = ["LICENSE.txt"]',
+            'license = {file = "LICENSE.txt"}',
+        )
+        pyproject = _pep621_example_project(tmp_path, pyproject_text=text)
+
+        msg = ".project.license. as a TOML table is deprecated"
+        with pytest.warns(SetuptoolsDeprecationWarning, match=msg):
+            dist = pyprojecttoml.apply_configuration(makedist(tmp_path), pyproject)
+
+        assert dist.metadata.license == "--- LICENSE stub ---"
+        assert set(dist.metadata.license_files) == {"LICENSE.txt"}  # auto-filled
+
+
+class TestPyModules:
+    # https://github.com/pypa/setuptools/issues/4316
+
+    def dist(self, name):
+        toml_config = f"""
+        [project]
+        name = "test"
+        version = "42.0"
+        [tool.setuptools]
+        py-modules = [{name!r}]
+        """
+        pyproject = Path("pyproject.toml")
+        pyproject.write_text(cleandoc(toml_config), encoding="utf-8")
+        return pyprojecttoml.apply_configuration(Distribution({}), pyproject)
+
+    @pytest.mark.parametrize("module", ["pip-run", "abc-d.λ-xyz-e"])
+    def test_valid_module_name(self, tmp_path, monkeypatch, module):
+        monkeypatch.chdir(tmp_path)
+        assert module in self.dist(module).py_modules
+
+    @pytest.mark.parametrize("module", ["pip run", "-pip-run", "pip-run-stubs"])
+    def test_invalid_module_name(self, tmp_path, monkeypatch, module):
+        monkeypatch.chdir(tmp_path)
+        with pytest.raises(ValueError, match="py-modules"):
+            self.dist(module).py_modules
+
+
+class TestExtModules:
+    def test_pyproject_sets_attribute(self, tmp_path, monkeypatch):
+        monkeypatch.chdir(tmp_path)
+        pyproject = Path("pyproject.toml")
+        toml_config = """
+        [project]
+        name = "test"
+        version = "42.0"
+        [tool.setuptools]
+        ext-modules = [
+          {name = "my.ext", sources = ["hello.c", "world.c"]}
+        ]
+        """
+        pyproject.write_text(cleandoc(toml_config), encoding="utf-8")
+        with pytest.warns(pyprojecttoml._ExperimentalConfiguration):
+            dist = pyprojecttoml.apply_configuration(Distribution({}), pyproject)
+        assert len(dist.ext_modules) == 1
+        assert dist.ext_modules[0].name == "my.ext"
+        assert set(dist.ext_modules[0].sources) == {"hello.c", "world.c"}
+
+
+class TestDeprecatedFields:
+    def test_namespace_packages(self, tmp_path):
+        pyproject = tmp_path / "pyproject.toml"
+        config = """
+        [project]
+        name = "myproj"
+        version = "42"
+        [tool.setuptools]
+        namespace-packages = ["myproj.pkg"]
+        """
+        pyproject.write_text(cleandoc(config), encoding="utf-8")
+        with pytest.raises(RemovedConfigError, match="namespace-packages"):
+            pyprojecttoml.apply_configuration(makedist(tmp_path), pyproject)
+
+
+class TestPresetField:
+    def pyproject(self, tmp_path, dynamic, extra_content=""):
+        content = f"[project]\nname = 'proj'\ndynamic = {dynamic!r}\n"
+        if "version" not in dynamic:
+            content += "version = '42'\n"
+        file = tmp_path / "pyproject.toml"
+        file.write_text(content + extra_content, encoding="utf-8")
+        return file
+
+    @pytest.mark.parametrize(
+        ("attr", "field", "value"),
+        [
+            ("license_expression", "license", "MIT"),
+            pytest.param(
+                *("license", "license", "Not SPDX"),
+                marks=[pytest.mark.filterwarnings("ignore:.*license. overwritten")],
+            ),
+            ("classifiers", "classifiers", ["Private :: Classifier"]),
+            ("entry_points", "scripts", {"console_scripts": ["foobar=foobar:main"]}),
+            ("entry_points", "gui-scripts", {"gui_scripts": ["bazquux=bazquux:main"]}),
+            pytest.param(
+                *("install_requires", "dependencies", ["six"]),
+                marks=[
+                    pytest.mark.filterwarnings("ignore:.*install_requires. overwritten")
+                ],
+            ),
+        ],
+    )
+    def test_not_listed_in_dynamic(self, tmp_path, attr, field, value):
+        """Setuptools cannot set a field if not listed in ``dynamic``"""
+        pyproject = self.pyproject(tmp_path, [])
+        dist = makedist(tmp_path, **{attr: value})
+        msg = re.compile(f"defined outside of `pyproject.toml`:.*{field}", re.S)
+        with pytest.warns(_MissingDynamic, match=msg):
+            dist = pyprojecttoml.apply_configuration(dist, pyproject)
+
+        dist_value = _some_attrgetter(f"metadata.{attr}", attr)(dist)
+        assert not dist_value
+
+    @pytest.mark.parametrize(
+        ("attr", "field", "value"),
+        [
+            ("license_expression", "license", "MIT"),
+            ("install_requires", "dependencies", []),
+            ("extras_require", "optional-dependencies", {}),
+            ("install_requires", "dependencies", ["six"]),
+            ("classifiers", "classifiers", ["Private :: Classifier"]),
+        ],
+    )
+    def test_listed_in_dynamic(self, tmp_path, attr, field, value):
+        pyproject = self.pyproject(tmp_path, [field])
+        dist = makedist(tmp_path, **{attr: value})
+        dist = pyprojecttoml.apply_configuration(dist, pyproject)
+        dist_value = _some_attrgetter(f"metadata.{attr}", attr)(dist)
+        assert dist_value == value
+
+    def test_license_files_exempt_from_dynamic(self, monkeypatch, tmp_path):
+        """
+        license-file is currently not considered in the context of dynamic.
+        As per 2025-02-19, https://packaging.python.org/en/latest/specifications/pyproject-toml/#license-files
+        allows setuptools to fill-in `license-files` the way it sees fit:
+
+        > If the license-files key is not defined, tools can decide how to handle license files.
+        > For example they can choose not to include any files or use their own
+        > logic to discover the appropriate files in the distribution.
+
+        Using license_files from setup.py to fill-in the value is in accordance
+        with this rule.
+        """
+        monkeypatch.chdir(tmp_path)
+        pyproject = self.pyproject(tmp_path, [])
+        dist = makedist(tmp_path, license_files=["LIC*"])
+        (tmp_path / "LIC1").write_text("42", encoding="utf-8")
+        dist = pyprojecttoml.apply_configuration(dist, pyproject)
+        assert dist.metadata.license_files == ["LIC1"]
+
+    def test_warning_overwritten_dependencies(self, tmp_path):
+        src = "[project]\nname='pkg'\nversion='0.1'\ndependencies=['click']\n"
+        pyproject = tmp_path / "pyproject.toml"
+        pyproject.write_text(src, encoding="utf-8")
+        dist = makedist(tmp_path, install_requires=["wheel"])
+        with pytest.warns(match="`install_requires` overwritten"):
+            dist = pyprojecttoml.apply_configuration(dist, pyproject)
+        assert "wheel" not in dist.install_requires
+
+    def test_optional_dependencies_dont_remove_env_markers(self, tmp_path):
+        """
+        Internally setuptools converts dependencies with markers to "extras".
+        If ``install_requires`` is given by ``setup.py``, we have to ensure that
+        applying ``optional-dependencies`` does not overwrite the mandatory
+        dependencies with markers (see #3204).
+        """
+        # If setuptools replace its internal mechanism that uses `requires.txt`
+        # this test has to be rewritten to adapt accordingly
+        extra = "\n[project.optional-dependencies]\nfoo = ['bar>1']\n"
+        pyproject = self.pyproject(tmp_path, ["dependencies"], extra)
+        install_req = ['importlib-resources (>=3.0.0) ; python_version < "3.7"']
+        dist = makedist(tmp_path, install_requires=install_req)
+        dist = pyprojecttoml.apply_configuration(dist, pyproject)
+        assert "foo" in dist.extras_require
+        egg_info = dist.get_command_obj("egg_info")
+        write_requirements(egg_info, tmp_path, tmp_path / "requires.txt")
+        reqs = (tmp_path / "requires.txt").read_text(encoding="utf-8")
+        assert "importlib-resources" in reqs
+        assert "bar" in reqs
+        assert ':python_version < "3.7"' in reqs
+
+    @pytest.mark.parametrize(
+        ("field", "group"),
+        [("scripts", "console_scripts"), ("gui-scripts", "gui_scripts")],
+    )
+    @pytest.mark.filterwarnings("error")
+    def test_scripts_dont_require_dynamic_entry_points(self, tmp_path, field, group):
+        # Issue 3862
+        pyproject = self.pyproject(tmp_path, [field])
+        dist = makedist(tmp_path, entry_points={group: ["foobar=foobar:main"]})
+        dist = pyprojecttoml.apply_configuration(dist, pyproject)
+        assert group in dist.entry_points
+
+
+class TestMeta:
+    def test_example_file_in_sdist(self, setuptools_sdist):
+        """Meta test to ensure tests can run from sdist"""
+        with tarfile.open(setuptools_sdist) as tar:
+            assert any(name.endswith(EXAMPLES_FILE) for name in tar.getnames())
+
+
+class TestInteropCommandLineParsing:
+    def test_version(self, tmp_path, monkeypatch, capsys):
+        # See pypa/setuptools#4047
+        # This test can be removed once the CLI interface of setup.py is removed
+        monkeypatch.chdir(tmp_path)
+        toml_config = """
+        [project]
+        name = "test"
+        version = "42.0"
+        """
+        pyproject = Path(tmp_path, "pyproject.toml")
+        pyproject.write_text(cleandoc(toml_config), encoding="utf-8")
+        opts = {"script_args": ["--version"]}
+        dist = pyprojecttoml.apply_configuration(Distribution(opts), pyproject)
+        dist.parse_command_line()  # <-- there should be no exception here.
+        captured = capsys.readouterr()
+        assert "42.0" in captured.out
+
+
+class TestStaticConfig:
+    def test_mark_static_fields(self, tmp_path, monkeypatch):
+        monkeypatch.chdir(tmp_path)
+        toml_config = """
+        [project]
+        name = "test"
+        version = "42.0"
+        dependencies = ["hello"]
+        keywords = ["world"]
+        classifiers = ["private :: hello world"]
+        [tool.setuptools]
+        obsoletes = ["abcd"]
+        provides = ["abcd"]
+        platforms = ["abcd"]
+        """
+        pyproject = Path(tmp_path, "pyproject.toml")
+        pyproject.write_text(cleandoc(toml_config), encoding="utf-8")
+        dist = pyprojecttoml.apply_configuration(Distribution({}), pyproject)
+        assert is_static(dist.install_requires)
+        assert is_static(dist.metadata.keywords)
+        assert is_static(dist.metadata.classifiers)
+        assert is_static(dist.metadata.obsoletes)
+        assert is_static(dist.metadata.provides)
+        assert is_static(dist.metadata.platforms)
+
+
+# --- Auxiliary Functions ---
+
+
+def core_metadata(dist) -> str:
+    with io.StringIO() as buffer:
+        dist.metadata.write_pkg_file(buffer)
+        pkg_file_txt = buffer.getvalue()
+
+    # Make sure core metadata is valid
+    Metadata.from_email(pkg_file_txt, validate=True)  # can raise exceptions
+
+    skip_prefixes: tuple[str, ...] = ()
+    skip_lines = set()
+    # ---- DIFF NORMALISATION ----
+    # PEP 621 is very particular about author/maintainer metadata conversion, so skip
+    skip_prefixes += ("Author:", "Author-email:", "Maintainer:", "Maintainer-email:")
+    # May be redundant with Home-page
+    skip_prefixes += ("Project-URL: Homepage,", "Home-page:")
+    # May be missing in original (relying on default) but backfilled in the TOML
+    skip_prefixes += ("Description-Content-Type:",)
+    # Remove empty lines
+    skip_lines.add("")
+
+    result = []
+    for line in pkg_file_txt.splitlines():
+        if line.startswith(skip_prefixes) or line in skip_lines:
+            continue
+        result.append(line + "\n")
+
+    return "".join(result)
diff --git a/setuptools/tests/config/test_expand.py b/setuptools/tests/config/test_expand.py
new file mode 100644
index 0000000000..c5710ec63d
--- /dev/null
+++ b/setuptools/tests/config/test_expand.py
@@ -0,0 +1,247 @@
+import os
+import sys
+from pathlib import Path
+
+import pytest
+
+from setuptools._static import is_static
+from setuptools.config import expand
+from setuptools.discovery import find_package_path
+
+from distutils.errors import DistutilsOptionError
+
+
+def write_files(files, root_dir):
+    for file, content in files.items():
+        path = root_dir / file
+        path.parent.mkdir(exist_ok=True, parents=True)
+        path.write_text(content, encoding="utf-8")
+
+
+def test_glob_relative(tmp_path, monkeypatch):
+    files = {
+        "dir1/dir2/dir3/file1.txt",
+        "dir1/dir2/file2.txt",
+        "dir1/file3.txt",
+        "a.ini",
+        "b.ini",
+        "dir1/c.ini",
+        "dir1/dir2/a.ini",
+    }
+
+    write_files({k: "" for k in files}, tmp_path)
+    patterns = ["**/*.txt", "[ab].*", "**/[ac].ini"]
+    monkeypatch.chdir(tmp_path)
+    assert set(expand.glob_relative(patterns)) == files
+    # Make sure the same APIs work outside cwd
+    assert set(expand.glob_relative(patterns, tmp_path)) == files
+
+
+def test_read_files(tmp_path, monkeypatch):
+    dir_ = tmp_path / "dir_"
+    (tmp_path / "_dir").mkdir(exist_ok=True)
+    (tmp_path / "a.txt").touch()
+    files = {"a.txt": "a", "dir1/b.txt": "b", "dir1/dir2/c.txt": "c"}
+    write_files(files, dir_)
+
+    secrets = Path(str(dir_) + "secrets")
+    secrets.mkdir(exist_ok=True)
+    write_files({"secrets.txt": "secret keys"}, secrets)
+
+    with monkeypatch.context() as m:
+        m.chdir(dir_)
+        assert expand.read_files(list(files)) == "a\nb\nc"
+
+        cannot_access_msg = r"Cannot access '.*\.\..a\.txt'"
+        with pytest.raises(DistutilsOptionError, match=cannot_access_msg):
+            expand.read_files(["../a.txt"])
+
+        cannot_access_secrets_msg = r"Cannot access '.*secrets\.txt'"
+        with pytest.raises(DistutilsOptionError, match=cannot_access_secrets_msg):
+            expand.read_files(["../dir_secrets/secrets.txt"])
+
+    # Make sure the same APIs work outside cwd
+    assert expand.read_files(list(files), dir_) == "a\nb\nc"
+    with pytest.raises(DistutilsOptionError, match=cannot_access_msg):
+        expand.read_files(["../a.txt"], dir_)
+
+
+class TestReadAttr:
+    @pytest.mark.parametrize(
+        "example",
+        [
+            # No cookie means UTF-8:
+            b"__version__ = '\xc3\xa9'\nraise SystemExit(1)\n",
+            # If a cookie is present, honor it:
+            b"# -*- coding: utf-8 -*-\n__version__ = '\xc3\xa9'\nraise SystemExit(1)\n",
+            b"# -*- coding: latin1 -*-\n__version__ = '\xe9'\nraise SystemExit(1)\n",
+        ],
+    )
+    def test_read_attr_encoding_cookie(self, example, tmp_path):
+        (tmp_path / "mod.py").write_bytes(example)
+        assert expand.read_attr('mod.__version__', root_dir=tmp_path) == 'é'
+
+    def test_read_attr(self, tmp_path, monkeypatch):
+        files = {
+            "pkg/__init__.py": "",
+            "pkg/sub/__init__.py": "VERSION = '0.1.1'",
+            "pkg/sub/mod.py": (
+                "VALUES = {'a': 0, 'b': {42}, 'c': (0, 1, 1)}\nraise SystemExit(1)"
+            ),
+        }
+        write_files(files, tmp_path)
+
+        with monkeypatch.context() as m:
+            m.chdir(tmp_path)
+            # Make sure it can read the attr statically without evaluating the module
+            version = expand.read_attr('pkg.sub.VERSION')
+            values = expand.read_attr('lib.mod.VALUES', {'lib': 'pkg/sub'})
+
+        assert version == '0.1.1'
+        assert is_static(values)
+
+        assert values['a'] == 0
+        assert values['b'] == {42}
+        assert is_static(values)
+
+        # Make sure the same APIs work outside cwd
+        assert expand.read_attr('pkg.sub.VERSION', root_dir=tmp_path) == '0.1.1'
+        values = expand.read_attr('lib.mod.VALUES', {'lib': 'pkg/sub'}, tmp_path)
+        assert values['c'] == (0, 1, 1)
+
+    @pytest.mark.parametrize(
+        "example",
+        [
+            "VERSION: str\nVERSION = '0.1.1'\nraise SystemExit(1)\n",
+            "VERSION: str = '0.1.1'\nraise SystemExit(1)\n",
+        ],
+    )
+    def test_read_annotated_attr(self, tmp_path, example):
+        files = {
+            "pkg/__init__.py": "",
+            "pkg/sub/__init__.py": example,
+        }
+        write_files(files, tmp_path)
+        # Make sure this attribute can be read statically
+        version = expand.read_attr('pkg.sub.VERSION', root_dir=tmp_path)
+        assert version == '0.1.1'
+        assert is_static(version)
+
+    @pytest.mark.parametrize(
+        "example",
+        [
+            "VERSION = (lambda: '0.1.1')()\n",
+            "def fn(): return '0.1.1'\nVERSION = fn()\n",
+            "VERSION: str = (lambda: '0.1.1')()\n",
+        ],
+    )
+    def test_read_dynamic_attr(self, tmp_path, monkeypatch, example):
+        files = {
+            "pkg/__init__.py": "",
+            "pkg/sub/__init__.py": example,
+        }
+        write_files(files, tmp_path)
+        monkeypatch.chdir(tmp_path)
+        version = expand.read_attr('pkg.sub.VERSION')
+        assert version == '0.1.1'
+        assert not is_static(version)
+
+    def test_import_order(self, tmp_path):
+        """
+        Sometimes the import machinery will import the parent package of a nested
+        module, which triggers side-effects and might create problems (see issue #3176)
+
+        ``read_attr`` should bypass these limitations by resolving modules statically
+        (via ast.literal_eval).
+        """
+        files = {
+            "src/pkg/__init__.py": "from .main import func\nfrom .about import version",
+            "src/pkg/main.py": "import super_complicated_dep\ndef func(): return 42",
+            "src/pkg/about.py": "version = '42'",
+        }
+        write_files(files, tmp_path)
+        attr_desc = "pkg.about.version"
+        package_dir = {"": "src"}
+        # `import super_complicated_dep` should not run, otherwise the build fails
+        assert expand.read_attr(attr_desc, package_dir, tmp_path) == "42"
+
+
+@pytest.mark.parametrize(
+    ("package_dir", "file", "module", "return_value"),
+    [
+        ({"": "src"}, "src/pkg/main.py", "pkg.main", 42),
+        ({"pkg": "lib"}, "lib/main.py", "pkg.main", 13),
+        ({}, "single_module.py", "single_module", 70),
+        ({}, "flat_layout/pkg.py", "flat_layout.pkg", 836),
+    ],
+)
+def test_resolve_class(monkeypatch, tmp_path, package_dir, file, module, return_value):
+    monkeypatch.setattr(sys, "modules", {})  # reproducibility
+    files = {file: f"class Custom:\n    def testing(self): return {return_value}"}
+    write_files(files, tmp_path)
+    cls = expand.resolve_class(f"{module}.Custom", package_dir, tmp_path)
+    assert cls().testing() == return_value
+
+
+@pytest.mark.parametrize(
+    ("args", "pkgs"),
+    [
+        ({"where": ["."], "namespaces": False}, {"pkg", "other"}),
+        ({"where": [".", "dir1"], "namespaces": False}, {"pkg", "other", "dir2"}),
+        ({"namespaces": True}, {"pkg", "other", "dir1", "dir1.dir2"}),
+        ({}, {"pkg", "other", "dir1", "dir1.dir2"}),  # default value for `namespaces`
+    ],
+)
+def test_find_packages(tmp_path, args, pkgs):
+    files = {
+        "pkg/__init__.py",
+        "other/__init__.py",
+        "dir1/dir2/__init__.py",
+    }
+    write_files({k: "" for k in files}, tmp_path)
+
+    package_dir = {}
+    kwargs = {"root_dir": tmp_path, "fill_package_dir": package_dir, **args}
+    where = kwargs.get("where", ["."])
+    assert set(expand.find_packages(**kwargs)) == pkgs
+    for pkg in pkgs:
+        pkg_path = find_package_path(pkg, package_dir, tmp_path)
+        assert os.path.exists(pkg_path)
+
+    # Make sure the same APIs work outside cwd
+    where = [
+        str((tmp_path / p).resolve()).replace(os.sep, "/")  # ensure posix-style paths
+        for p in args.pop("where", ["."])
+    ]
+
+    assert set(expand.find_packages(where=where, **args)) == pkgs
+
+
+@pytest.mark.parametrize(
+    ("files", "where", "expected_package_dir"),
+    [
+        (["pkg1/__init__.py", "pkg1/other.py"], ["."], {}),
+        (["pkg1/__init__.py", "pkg2/__init__.py"], ["."], {}),
+        (["src/pkg1/__init__.py", "src/pkg1/other.py"], ["src"], {"": "src"}),
+        (["src/pkg1/__init__.py", "src/pkg2/__init__.py"], ["src"], {"": "src"}),
+        (
+            ["src1/pkg1/__init__.py", "src2/pkg2/__init__.py"],
+            ["src1", "src2"],
+            {"pkg1": "src1/pkg1", "pkg2": "src2/pkg2"},
+        ),
+        (
+            ["src/pkg1/__init__.py", "pkg2/__init__.py"],
+            ["src", "."],
+            {"pkg1": "src/pkg1"},
+        ),
+    ],
+)
+def test_fill_package_dir(tmp_path, files, where, expected_package_dir):
+    write_files({k: "" for k in files}, tmp_path)
+    pkg_dir = {}
+    kwargs = {"root_dir": tmp_path, "fill_package_dir": pkg_dir, "namespaces": False}
+    pkgs = expand.find_packages(where=where, **kwargs)
+    assert set(pkg_dir.items()) == set(expected_package_dir.items())
+    for pkg in pkgs:
+        pkg_path = find_package_path(pkg, pkg_dir, tmp_path)
+        assert os.path.exists(pkg_path)
diff --git a/setuptools/tests/config/test_pyprojecttoml.py b/setuptools/tests/config/test_pyprojecttoml.py
new file mode 100644
index 0000000000..db40fcd23d
--- /dev/null
+++ b/setuptools/tests/config/test_pyprojecttoml.py
@@ -0,0 +1,396 @@
+import re
+from configparser import ConfigParser
+from inspect import cleandoc
+
+import jaraco.path
+import pytest
+import tomli_w
+from path import Path
+
+import setuptools  # noqa: F401 # force distutils.core to be patched
+from setuptools.config.pyprojecttoml import (
+    _ToolsTypoInMetadata,
+    apply_configuration,
+    expand_configuration,
+    read_configuration,
+    validate,
+)
+from setuptools.dist import Distribution
+from setuptools.errors import OptionError
+
+import distutils.core
+
+EXAMPLE = """
+[project]
+name = "myproj"
+keywords = ["some", "key", "words"]
+dynamic = ["version", "readme"]
+requires-python = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+dependencies = [
+    'importlib-metadata>=0.12;python_version<"3.8"',
+    'importlib-resources>=1.0;python_version<"3.7"',
+    'pathlib2>=2.3.3,<3;python_version < "3.4" and sys.platform != "win32"',
+]
+
+[project.optional-dependencies]
+docs = [
+    "sphinx>=3",
+    "sphinx-argparse>=0.2.5",
+    "sphinx-rtd-theme>=0.4.3",
+]
+testing = [
+    "pytest>=1",
+    "coverage>=3,<5",
+]
+
+[project.scripts]
+exec = "pkg.__main__:exec"
+
+[build-system]
+requires = ["setuptools", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools]
+package-dir = {"" = "src"}
+zip-safe = true
+platforms = ["any"]
+
+[tool.setuptools.packages.find]
+where = ["src"]
+
+[tool.setuptools.cmdclass]
+sdist = "pkg.mod.CustomSdist"
+
+[tool.setuptools.dynamic.version]
+attr = "pkg.__version__.VERSION"
+
+[tool.setuptools.dynamic.readme]
+file = ["README.md"]
+content-type = "text/markdown"
+
+[tool.setuptools.package-data]
+"*" = ["*.txt"]
+
+[tool.setuptools.data-files]
+"data" = ["_files/*.txt"]
+
+[tool.distutils.sdist]
+formats = "gztar"
+
+[tool.distutils.bdist_wheel]
+universal = true
+"""
+
+
+def create_example(path, pkg_root):
+    files = {
+        "pyproject.toml": EXAMPLE,
+        "README.md": "hello world",
+        "_files": {
+            "file.txt": "",
+        },
+    }
+    packages = {
+        "pkg": {
+            "__init__.py": "",
+            "mod.py": "class CustomSdist: pass",
+            "__version__.py": "VERSION = (3, 10)",
+            "__main__.py": "def exec(): print('hello')",
+        },
+    }
+
+    assert pkg_root  # Meta-test: cannot be empty string.
+
+    if pkg_root == ".":
+        files = {**files, **packages}
+        # skip other files: flat-layout will raise error for multi-package dist
+    else:
+        # Use this opportunity to ensure namespaces are discovered
+        files[pkg_root] = {**packages, "other": {"nested": {"__init__.py": ""}}}
+
+    jaraco.path.build(files, prefix=path)
+
+
+def verify_example(config, path, pkg_root):
+    pyproject = path / "pyproject.toml"
+    pyproject.write_text(tomli_w.dumps(config), encoding="utf-8")
+    expanded = expand_configuration(config, path)
+    expanded_project = expanded["project"]
+    assert read_configuration(pyproject, expand=True) == expanded
+    assert expanded_project["version"] == "3.10"
+    assert expanded_project["readme"]["text"] == "hello world"
+    assert "packages" in expanded["tool"]["setuptools"]
+    if pkg_root == ".":
+        # Auto-discovery will raise error for multi-package dist
+        assert set(expanded["tool"]["setuptools"]["packages"]) == {"pkg"}
+    else:
+        assert set(expanded["tool"]["setuptools"]["packages"]) == {
+            "pkg",
+            "other",
+            "other.nested",
+        }
+    assert expanded["tool"]["setuptools"]["include-package-data"] is True
+    assert "" in expanded["tool"]["setuptools"]["package-data"]
+    assert "*" not in expanded["tool"]["setuptools"]["package-data"]
+    assert expanded["tool"]["setuptools"]["data-files"] == [
+        ("data", ["_files/file.txt"])
+    ]
+
+
+def test_read_configuration(tmp_path):
+    create_example(tmp_path, "src")
+    pyproject = tmp_path / "pyproject.toml"
+
+    config = read_configuration(pyproject, expand=False)
+    assert config["project"].get("version") is None
+    assert config["project"].get("readme") is None
+
+    verify_example(config, tmp_path, "src")
+
+
+@pytest.mark.parametrize(
+    ("pkg_root", "opts"),
+    [
+        (".", {}),
+        ("src", {}),
+        ("lib", {"packages": {"find": {"where": ["lib"]}}}),
+    ],
+)
+def test_discovered_package_dir_with_attr_directive_in_config(tmp_path, pkg_root, opts):
+    create_example(tmp_path, pkg_root)
+
+    pyproject = tmp_path / "pyproject.toml"
+
+    config = read_configuration(pyproject, expand=False)
+    assert config["project"].get("version") is None
+    assert config["project"].get("readme") is None
+    config["tool"]["setuptools"].pop("packages", None)
+    config["tool"]["setuptools"].pop("package-dir", None)
+
+    config["tool"]["setuptools"].update(opts)
+    verify_example(config, tmp_path, pkg_root)
+
+
+ENTRY_POINTS = {
+    "console_scripts": {"a": "mod.a:func"},
+    "gui_scripts": {"b": "mod.b:func"},
+    "other": {"c": "mod.c:func [extra]"},
+}
+
+
+class TestEntryPoints:
+    def write_entry_points(self, tmp_path):
+        entry_points = ConfigParser()
+        entry_points.read_dict(ENTRY_POINTS)
+        with open(tmp_path / "entry-points.txt", "w", encoding="utf-8") as f:
+            entry_points.write(f)
+
+    def pyproject(self, dynamic=None):
+        project = {"dynamic": dynamic or ["scripts", "gui-scripts", "entry-points"]}
+        tool = {"dynamic": {"entry-points": {"file": "entry-points.txt"}}}
+        return {"project": project, "tool": {"setuptools": tool}}
+
+    def test_all_listed_in_dynamic(self, tmp_path):
+        self.write_entry_points(tmp_path)
+        expanded = expand_configuration(self.pyproject(), tmp_path)
+        expanded_project = expanded["project"]
+        assert len(expanded_project["scripts"]) == 1
+        assert expanded_project["scripts"]["a"] == "mod.a:func"
+        assert len(expanded_project["gui-scripts"]) == 1
+        assert expanded_project["gui-scripts"]["b"] == "mod.b:func"
+        assert len(expanded_project["entry-points"]) == 1
+        assert expanded_project["entry-points"]["other"]["c"] == "mod.c:func [extra]"
+
+    @pytest.mark.parametrize("missing_dynamic", ("scripts", "gui-scripts"))
+    def test_scripts_not_listed_in_dynamic(self, tmp_path, missing_dynamic):
+        self.write_entry_points(tmp_path)
+        dynamic = {"scripts", "gui-scripts", "entry-points"} - {missing_dynamic}
+
+        msg = f"defined outside of `pyproject.toml`:.*{missing_dynamic}"
+        with pytest.raises(OptionError, match=re.compile(msg, re.S)):
+            expand_configuration(self.pyproject(dynamic), tmp_path)
+
+
+class TestClassifiers:
+    def test_dynamic(self, tmp_path):
+        # Let's create a project example that has dynamic classifiers
+        # coming from a txt file.
+        create_example(tmp_path, "src")
+        classifiers = cleandoc(
+            """
+            Framework :: Flask
+            Programming Language :: Haskell
+            """
+        )
+        (tmp_path / "classifiers.txt").write_text(classifiers, encoding="utf-8")
+
+        pyproject = tmp_path / "pyproject.toml"
+        config = read_configuration(pyproject, expand=False)
+        dynamic = config["project"]["dynamic"]
+        config["project"]["dynamic"] = list({*dynamic, "classifiers"})
+        dynamic_config = config["tool"]["setuptools"]["dynamic"]
+        dynamic_config["classifiers"] = {"file": "classifiers.txt"}
+
+        # When the configuration is expanded,
+        # each line of the file should be an different classifier.
+        validate(config, pyproject)
+        expanded = expand_configuration(config, tmp_path)
+
+        assert set(expanded["project"]["classifiers"]) == {
+            "Framework :: Flask",
+            "Programming Language :: Haskell",
+        }
+
+    def test_dynamic_without_config(self, tmp_path):
+        config = """
+        [project]
+        name = "myproj"
+        version = '42'
+        dynamic = ["classifiers"]
+        """
+
+        pyproject = tmp_path / "pyproject.toml"
+        pyproject.write_text(cleandoc(config), encoding="utf-8")
+        with pytest.raises(OptionError, match="No configuration .* .classifiers."):
+            read_configuration(pyproject)
+
+    def test_dynamic_readme_from_setup_script_args(self, tmp_path):
+        config = """
+        [project]
+        name = "myproj"
+        version = '42'
+        dynamic = ["readme"]
+        """
+        pyproject = tmp_path / "pyproject.toml"
+        pyproject.write_text(cleandoc(config), encoding="utf-8")
+        dist = Distribution(attrs={"long_description": "42"})
+        # No error should occur because of missing `readme`
+        dist = apply_configuration(dist, pyproject)
+        assert dist.metadata.long_description == "42"
+
+    def test_dynamic_without_file(self, tmp_path):
+        config = """
+        [project]
+        name = "myproj"
+        version = '42'
+        dynamic = ["classifiers"]
+
+        [tool.setuptools.dynamic]
+        classifiers = {file = ["classifiers.txt"]}
+        """
+
+        pyproject = tmp_path / "pyproject.toml"
+        pyproject.write_text(cleandoc(config), encoding="utf-8")
+        with pytest.warns(UserWarning, match="File .*classifiers.txt. cannot be found"):
+            expanded = read_configuration(pyproject)
+        assert "classifiers" not in expanded["project"]
+
+
+@pytest.mark.parametrize(
+    "example",
+    (
+        """
+        [project]
+        name = "myproj"
+        version = "1.2"
+
+        [my-tool.that-disrespect.pep518]
+        value = 42
+        """,
+    ),
+)
+def test_ignore_unrelated_config(tmp_path, example):
+    pyproject = tmp_path / "pyproject.toml"
+    pyproject.write_text(cleandoc(example), encoding="utf-8")
+
+    # Make sure no error is raised due to 3rd party configs in pyproject.toml
+    assert read_configuration(pyproject) is not None
+
+
+@pytest.mark.parametrize(
+    ("example", "error_msg"),
+    [
+        (
+            """
+            [project]
+            name = "myproj"
+            version = "1.2"
+            requires = ['pywin32; platform_system=="Windows"' ]
+            """,
+            "configuration error: .project. must not contain ..requires.. properties",
+        ),
+    ],
+)
+def test_invalid_example(tmp_path, example, error_msg):
+    pyproject = tmp_path / "pyproject.toml"
+    pyproject.write_text(cleandoc(example), encoding="utf-8")
+
+    pattern = re.compile(f"invalid pyproject.toml.*{error_msg}.*", re.M | re.S)
+    with pytest.raises(ValueError, match=pattern):
+        read_configuration(pyproject)
+
+
+@pytest.mark.parametrize("config", ("", "[tool.something]\nvalue = 42"))
+def test_empty(tmp_path, config):
+    pyproject = tmp_path / "pyproject.toml"
+    pyproject.write_text(config, encoding="utf-8")
+
+    # Make sure no error is raised
+    assert read_configuration(pyproject) == {}
+
+
+@pytest.mark.parametrize("config", ("[project]\nname = 'myproj'\nversion='42'\n",))
+def test_include_package_data_by_default(tmp_path, config):
+    """Builds with ``pyproject.toml`` should consider ``include-package-data=True`` as
+    default.
+    """
+    pyproject = tmp_path / "pyproject.toml"
+    pyproject.write_text(config, encoding="utf-8")
+
+    config = read_configuration(pyproject)
+    assert config["tool"]["setuptools"]["include-package-data"] is True
+
+
+def test_include_package_data_in_setuppy(tmp_path):
+    """Builds with ``pyproject.toml`` should consider ``include_package_data`` set in
+    ``setup.py``.
+
+    See https://github.com/pypa/setuptools/issues/3197#issuecomment-1079023889
+    """
+    files = {
+        "pyproject.toml": "[project]\nname = 'myproj'\nversion='42'\n",
+        "setup.py": "__import__('setuptools').setup(include_package_data=False)",
+    }
+    jaraco.path.build(files, prefix=tmp_path)
+
+    with Path(tmp_path):
+        dist = distutils.core.run_setup("setup.py", {}, stop_after="config")
+
+    assert dist.get_name() == "myproj"
+    assert dist.get_version() == "42"
+    assert dist.include_package_data is False
+
+
+def test_warn_tools_typo(tmp_path):
+    """Test that the common ``tools.setuptools`` typo in ``pyproject.toml`` issues a warning
+
+    See https://github.com/pypa/setuptools/issues/4150
+    """
+    config = """
+    [build-system]
+    requires = ["setuptools"]
+    build-backend = "setuptools.build_meta"
+
+    [project]
+    name = "myproj"
+    version = '42'
+
+    [tools.setuptools]
+    packages = ["package"]
+    """
+
+    pyproject = tmp_path / "pyproject.toml"
+    pyproject.write_text(cleandoc(config), encoding="utf-8")
+
+    with pytest.warns(_ToolsTypoInMetadata):
+        read_configuration(pyproject)
diff --git a/setuptools/tests/config/test_pyprojecttoml_dynamic_deps.py b/setuptools/tests/config/test_pyprojecttoml_dynamic_deps.py
new file mode 100644
index 0000000000..e42f28ffaa
--- /dev/null
+++ b/setuptools/tests/config/test_pyprojecttoml_dynamic_deps.py
@@ -0,0 +1,109 @@
+from inspect import cleandoc
+
+import pytest
+from jaraco import path
+
+from setuptools.config.pyprojecttoml import apply_configuration
+from setuptools.dist import Distribution
+from setuptools.warnings import SetuptoolsWarning
+
+
+def test_dynamic_dependencies(tmp_path):
+    files = {
+        "requirements.txt": "six\n  # comment\n",
+        "pyproject.toml": cleandoc(
+            """
+            [project]
+            name = "myproj"
+            version = "1.0"
+            dynamic = ["dependencies"]
+
+            [build-system]
+            requires = ["setuptools", "wheel"]
+            build-backend = "setuptools.build_meta"
+
+            [tool.setuptools.dynamic.dependencies]
+            file = ["requirements.txt"]
+            """
+        ),
+    }
+    path.build(files, prefix=tmp_path)
+    dist = Distribution()
+    dist = apply_configuration(dist, tmp_path / "pyproject.toml")
+    assert dist.install_requires == ["six"]
+
+
+def test_dynamic_optional_dependencies(tmp_path):
+    files = {
+        "requirements-docs.txt": "sphinx\n  # comment\n",
+        "pyproject.toml": cleandoc(
+            """
+            [project]
+            name = "myproj"
+            version = "1.0"
+            dynamic = ["optional-dependencies"]
+
+            [tool.setuptools.dynamic.optional-dependencies.docs]
+            file = ["requirements-docs.txt"]
+
+            [build-system]
+            requires = ["setuptools", "wheel"]
+            build-backend = "setuptools.build_meta"
+            """
+        ),
+    }
+    path.build(files, prefix=tmp_path)
+    dist = Distribution()
+    dist = apply_configuration(dist, tmp_path / "pyproject.toml")
+    assert dist.extras_require == {"docs": ["sphinx"]}
+
+
+def test_mixed_dynamic_optional_dependencies(tmp_path):
+    """
+    Test that if PEP 621 was loosened to allow mixing of dynamic and static
+    configurations in the case of fields containing sub-fields (groups),
+    things would work out.
+    """
+    files = {
+        "requirements-images.txt": "pillow~=42.0\n  # comment\n",
+        "pyproject.toml": cleandoc(
+            """
+            [project]
+            name = "myproj"
+            version = "1.0"
+            dynamic = ["optional-dependencies"]
+
+            [project.optional-dependencies]
+            docs = ["sphinx"]
+
+            [tool.setuptools.dynamic.optional-dependencies.images]
+            file = ["requirements-images.txt"]
+            """
+        ),
+    }
+
+    path.build(files, prefix=tmp_path)
+    pyproject = tmp_path / "pyproject.toml"
+    with pytest.raises(ValueError, match="project.optional-dependencies"):
+        apply_configuration(Distribution(), pyproject)
+
+
+def test_mixed_extras_require_optional_dependencies(tmp_path):
+    files = {
+        "pyproject.toml": cleandoc(
+            """
+            [project]
+            name = "myproj"
+            version = "1.0"
+            optional-dependencies.docs = ["sphinx"]
+            """
+        ),
+    }
+
+    path.build(files, prefix=tmp_path)
+    pyproject = tmp_path / "pyproject.toml"
+
+    with pytest.warns(SetuptoolsWarning, match=".extras_require. overwritten"):
+        dist = Distribution({"extras_require": {"hello": ["world"]}})
+        dist = apply_configuration(dist, pyproject)
+        assert dist.extras_require == {"docs": ["sphinx"]}
diff --git a/setuptools/tests/config/test_setupcfg.py b/setuptools/tests/config/test_setupcfg.py
new file mode 100644
index 0000000000..61af990447
--- /dev/null
+++ b/setuptools/tests/config/test_setupcfg.py
@@ -0,0 +1,980 @@
+import configparser
+import contextlib
+import inspect
+import re
+from pathlib import Path
+from unittest.mock import Mock, patch
+
+import pytest
+from packaging.requirements import InvalidRequirement
+
+from setuptools.config.setupcfg import ConfigHandler, Target, read_configuration
+from setuptools.dist import Distribution, _Distribution
+from setuptools.warnings import SetuptoolsDeprecationWarning
+
+from ..textwrap import DALS
+
+from distutils.errors import DistutilsFileError, DistutilsOptionError
+
+
+class ErrConfigHandler(ConfigHandler[Target]):
+    """Erroneous handler. Fails to implement required methods."""
+
+    section_prefix = "**err**"
+
+
+def make_package_dir(name, base_dir, ns=False):
+    dir_package = base_dir
+    for dir_name in name.split('/'):
+        dir_package = dir_package.mkdir(dir_name)
+    init_file = None
+    if not ns:
+        init_file = dir_package.join('__init__.py')
+        init_file.write('')
+    return dir_package, init_file
+
+
+def fake_env(
+    tmpdir, setup_cfg, setup_py=None, encoding='ascii', package_path='fake_package'
+):
+    if setup_py is None:
+        setup_py = 'from setuptools import setup\nsetup()\n'
+
+    tmpdir.join('setup.py').write(setup_py)
+    config = tmpdir.join('setup.cfg')
+    config.write(setup_cfg.encode(encoding), mode='wb')
+
+    package_dir, init_file = make_package_dir(package_path, tmpdir)
+
+    init_file.write(
+        'VERSION = (1, 2, 3)\n'
+        '\n'
+        'VERSION_MAJOR = 1'
+        '\n'
+        'def get_version():\n'
+        '    return [3, 4, 5, "dev"]\n'
+        '\n'
+    )
+
+    return package_dir, config
+
+
+@contextlib.contextmanager
+def get_dist(tmpdir, kwargs_initial=None, parse=True):
+    kwargs_initial = kwargs_initial or {}
+
+    with tmpdir.as_cwd():
+        dist = Distribution(kwargs_initial)
+        dist.script_name = 'setup.py'
+        parse and dist.parse_config_files()
+
+        yield dist
+
+
+def test_parsers_implemented():
+    with pytest.raises(NotImplementedError):
+        handler = ErrConfigHandler(None, {}, False, Mock())
+        handler.parsers
+
+
+class TestConfigurationReader:
+    def test_basic(self, tmpdir):
+        _, config = fake_env(
+            tmpdir,
+            '[metadata]\n'
+            'version = 10.1.1\n'
+            'keywords = one, two\n'
+            '\n'
+            '[options]\n'
+            'scripts = bin/a.py, bin/b.py\n',
+        )
+        config_dict = read_configuration(str(config))
+        assert config_dict['metadata']['version'] == '10.1.1'
+        assert config_dict['metadata']['keywords'] == ['one', 'two']
+        assert config_dict['options']['scripts'] == ['bin/a.py', 'bin/b.py']
+
+    def test_no_config(self, tmpdir):
+        with pytest.raises(DistutilsFileError):
+            read_configuration(str(tmpdir.join('setup.cfg')))
+
+    def test_ignore_errors(self, tmpdir):
+        _, config = fake_env(
+            tmpdir,
+            '[metadata]\nversion = attr: none.VERSION\nkeywords = one, two\n',
+        )
+        with pytest.raises(ImportError):
+            read_configuration(str(config))
+
+        config_dict = read_configuration(str(config), ignore_option_errors=True)
+
+        assert config_dict['metadata']['keywords'] == ['one', 'two']
+        assert 'version' not in config_dict['metadata']
+
+        config.remove()
+
+
+class TestMetadata:
+    def test_basic(self, tmpdir):
+        fake_env(
+            tmpdir,
+            '[metadata]\n'
+            'version = 10.1.1\n'
+            'description = Some description\n'
+            'long_description_content_type = text/something\n'
+            'long_description = file: README\n'
+            'name = fake_name\n'
+            'keywords = one, two\n'
+            'provides = package, package.sub\n'
+            'license = otherlic\n'
+            'download_url = http://test.test.com/test/\n'
+            'maintainer_email = test@test.com\n',
+        )
+
+        tmpdir.join('README').write('readme contents\nline2')
+
+        meta_initial = {
+            # This will be used so `otherlic` won't replace it.
+            'license': 'BSD 3-Clause License',
+        }
+
+        with get_dist(tmpdir, meta_initial) as dist:
+            metadata = dist.metadata
+
+            assert metadata.version == '10.1.1'
+            assert metadata.description == 'Some description'
+            assert metadata.long_description_content_type == 'text/something'
+            assert metadata.long_description == 'readme contents\nline2'
+            assert metadata.provides == ['package', 'package.sub']
+            assert metadata.license == 'BSD 3-Clause License'
+            assert metadata.name == 'fake_name'
+            assert metadata.keywords == ['one', 'two']
+            assert metadata.download_url == 'http://test.test.com/test/'
+            assert metadata.maintainer_email == 'test@test.com'
+
+    def test_license_cfg(self, tmpdir):
+        fake_env(
+            tmpdir,
+            DALS(
+                """
+            [metadata]
+            name=foo
+            version=0.0.1
+            license=Apache 2.0
+            """
+            ),
+        )
+
+        with get_dist(tmpdir) as dist:
+            metadata = dist.metadata
+
+            assert metadata.name == "foo"
+            assert metadata.version == "0.0.1"
+            assert metadata.license == "Apache 2.0"
+
+    def test_file_mixed(self, tmpdir):
+        fake_env(
+            tmpdir,
+            '[metadata]\nlong_description = file: README.rst, CHANGES.rst\n\n',
+        )
+
+        tmpdir.join('README.rst').write('readme contents\nline2')
+        tmpdir.join('CHANGES.rst').write('changelog contents\nand stuff')
+
+        with get_dist(tmpdir) as dist:
+            assert dist.metadata.long_description == (
+                'readme contents\nline2\nchangelog contents\nand stuff'
+            )
+
+    def test_file_sandboxed(self, tmpdir):
+        tmpdir.ensure("README")
+        project = tmpdir.join('depth1', 'depth2')
+        project.ensure(dir=True)
+        fake_env(project, '[metadata]\nlong_description = file: ../../README\n')
+
+        with get_dist(project, parse=False) as dist:
+            with pytest.raises(DistutilsOptionError):
+                dist.parse_config_files()  # file: out of sandbox
+
+    def test_aliases(self, tmpdir):
+        fake_env(
+            tmpdir,
+            '[metadata]\n'
+            'author_email = test@test.com\n'
+            'home_page = http://test.test.com/test/\n'
+            'summary = Short summary\n'
+            'platform = a, b\n'
+            'classifier =\n'
+            '  Framework :: Django\n'
+            '  Programming Language :: Python :: 3.5\n',
+        )
+
+        with get_dist(tmpdir) as dist:
+            metadata = dist.metadata
+            assert metadata.author_email == 'test@test.com'
+            assert metadata.url == 'http://test.test.com/test/'
+            assert metadata.description == 'Short summary'
+            assert metadata.platforms == ['a', 'b']
+            assert metadata.classifiers == [
+                'Framework :: Django',
+                'Programming Language :: Python :: 3.5',
+            ]
+
+    def test_multiline(self, tmpdir):
+        fake_env(
+            tmpdir,
+            '[metadata]\n'
+            'name = fake_name\n'
+            'keywords =\n'
+            '  one\n'
+            '  two\n'
+            'classifiers =\n'
+            '  Framework :: Django\n'
+            '  Programming Language :: Python :: 3.5\n',
+        )
+        with get_dist(tmpdir) as dist:
+            metadata = dist.metadata
+            assert metadata.keywords == ['one', 'two']
+            assert metadata.classifiers == [
+                'Framework :: Django',
+                'Programming Language :: Python :: 3.5',
+            ]
+
+    def test_dict(self, tmpdir):
+        fake_env(
+            tmpdir,
+            '[metadata]\n'
+            'project_urls =\n'
+            '  Link One = https://example.com/one/\n'
+            '  Link Two = https://example.com/two/\n',
+        )
+        with get_dist(tmpdir) as dist:
+            metadata = dist.metadata
+            assert metadata.project_urls == {
+                'Link One': 'https://example.com/one/',
+                'Link Two': 'https://example.com/two/',
+            }
+
+    def test_version(self, tmpdir):
+        package_dir, config = fake_env(
+            tmpdir, '[metadata]\nversion = attr: fake_package.VERSION\n'
+        )
+
+        sub_a = package_dir.mkdir('subpkg_a')
+        sub_a.join('__init__.py').write('')
+        sub_a.join('mod.py').write('VERSION = (2016, 11, 26)')
+
+        sub_b = package_dir.mkdir('subpkg_b')
+        sub_b.join('__init__.py').write('')
+        sub_b.join('mod.py').write(
+            'import third_party_module\nVERSION = (2016, 11, 26)'
+        )
+
+        with get_dist(tmpdir) as dist:
+            assert dist.metadata.version == '1.2.3'
+
+        config.write('[metadata]\nversion = attr: fake_package.get_version\n')
+        with get_dist(tmpdir) as dist:
+            assert dist.metadata.version == '3.4.5.dev'
+
+        config.write('[metadata]\nversion = attr: fake_package.VERSION_MAJOR\n')
+        with get_dist(tmpdir) as dist:
+            assert dist.metadata.version == '1'
+
+        config.write('[metadata]\nversion = attr: fake_package.subpkg_a.mod.VERSION\n')
+        with get_dist(tmpdir) as dist:
+            assert dist.metadata.version == '2016.11.26'
+
+        config.write('[metadata]\nversion = attr: fake_package.subpkg_b.mod.VERSION\n')
+        with get_dist(tmpdir) as dist:
+            assert dist.metadata.version == '2016.11.26'
+
+    def test_version_file(self, tmpdir):
+        fake_env(tmpdir, '[metadata]\nversion = file: fake_package/version.txt\n')
+        tmpdir.join('fake_package', 'version.txt').write('1.2.3\n')
+
+        with get_dist(tmpdir) as dist:
+            assert dist.metadata.version == '1.2.3'
+
+        tmpdir.join('fake_package', 'version.txt').write('1.2.3\n4.5.6\n')
+        with pytest.raises(DistutilsOptionError):
+            with get_dist(tmpdir) as dist:
+                dist.metadata.version
+
+    def test_version_with_package_dir_simple(self, tmpdir):
+        fake_env(
+            tmpdir,
+            '[metadata]\n'
+            'version = attr: fake_package_simple.VERSION\n'
+            '[options]\n'
+            'package_dir =\n'
+            '    = src\n',
+            package_path='src/fake_package_simple',
+        )
+
+        with get_dist(tmpdir) as dist:
+            assert dist.metadata.version == '1.2.3'
+
+    def test_version_with_package_dir_rename(self, tmpdir):
+        fake_env(
+            tmpdir,
+            '[metadata]\n'
+            'version = attr: fake_package_rename.VERSION\n'
+            '[options]\n'
+            'package_dir =\n'
+            '    fake_package_rename = fake_dir\n',
+            package_path='fake_dir',
+        )
+
+        with get_dist(tmpdir) as dist:
+            assert dist.metadata.version == '1.2.3'
+
+    def test_version_with_package_dir_complex(self, tmpdir):
+        fake_env(
+            tmpdir,
+            '[metadata]\n'
+            'version = attr: fake_package_complex.VERSION\n'
+            '[options]\n'
+            'package_dir =\n'
+            '    fake_package_complex = src/fake_dir\n',
+            package_path='src/fake_dir',
+        )
+
+        with get_dist(tmpdir) as dist:
+            assert dist.metadata.version == '1.2.3'
+
+    def test_unknown_meta_item(self, tmpdir):
+        fake_env(tmpdir, '[metadata]\nname = fake_name\nunknown = some\n')
+        with get_dist(tmpdir, parse=False) as dist:
+            dist.parse_config_files()  # Skip unknown.
+
+    def test_usupported_section(self, tmpdir):
+        fake_env(tmpdir, '[metadata.some]\nkey = val\n')
+        with get_dist(tmpdir, parse=False) as dist:
+            with pytest.raises(DistutilsOptionError):
+                dist.parse_config_files()
+
+    def test_classifiers(self, tmpdir):
+        expected = set([
+            'Framework :: Django',
+            'Programming Language :: Python :: 3',
+            'Programming Language :: Python :: 3.5',
+        ])
+
+        # From file.
+        _, config = fake_env(tmpdir, '[metadata]\nclassifiers = file: classifiers\n')
+
+        tmpdir.join('classifiers').write(
+            'Framework :: Django\n'
+            'Programming Language :: Python :: 3\n'
+            'Programming Language :: Python :: 3.5\n'
+        )
+
+        with get_dist(tmpdir) as dist:
+            assert set(dist.metadata.classifiers) == expected
+
+        # From list notation
+        config.write(
+            '[metadata]\n'
+            'classifiers =\n'
+            '    Framework :: Django\n'
+            '    Programming Language :: Python :: 3\n'
+            '    Programming Language :: Python :: 3.5\n'
+        )
+        with get_dist(tmpdir) as dist:
+            assert set(dist.metadata.classifiers) == expected
+
+    def test_interpolation(self, tmpdir):
+        fake_env(tmpdir, '[metadata]\ndescription = %(message)s\n')
+        with pytest.raises(configparser.InterpolationMissingOptionError):
+            with get_dist(tmpdir):
+                pass
+
+    def test_non_ascii_1(self, tmpdir):
+        fake_env(tmpdir, '[metadata]\ndescription = éàïôñ\n', encoding='utf-8')
+        with get_dist(tmpdir):
+            pass
+
+    def test_non_ascii_3(self, tmpdir):
+        fake_env(tmpdir, '\n# -*- coding: invalid\n')
+        with get_dist(tmpdir):
+            pass
+
+    def test_non_ascii_4(self, tmpdir):
+        fake_env(
+            tmpdir,
+            '# -*- coding: utf-8\n[metadata]\ndescription = éàïôñ\n',
+            encoding='utf-8',
+        )
+        with get_dist(tmpdir) as dist:
+            assert dist.metadata.description == 'éàïôñ'
+
+    def test_not_utf8(self, tmpdir):
+        """
+        Config files encoded not in UTF-8 will fail
+        """
+        fake_env(
+            tmpdir,
+            '# vim: set fileencoding=iso-8859-15 :\n[metadata]\ndescription = éàïôñ\n',
+            encoding='iso-8859-15',
+        )
+        with pytest.raises(UnicodeDecodeError):
+            with get_dist(tmpdir):
+                pass
+
+    @pytest.mark.parametrize(
+        ("error_msg", "config", "invalid"),
+        [
+            (
+                "Invalid dash-separated key 'author-email' in 'metadata' (setup.cfg)",
+                DALS(
+                    """
+                    [metadata]
+                    author-email = test@test.com
+                    maintainer_email = foo@foo.com
+                    """
+                ),
+                {"author-email": "test@test.com"},
+            ),
+            (
+                "Invalid uppercase key 'Name' in 'metadata' (setup.cfg)",
+                DALS(
+                    """
+                    [metadata]
+                    Name = foo
+                    description = Some description
+                    """
+                ),
+                {"Name": "foo"},
+            ),
+        ],
+    )
+    def test_invalid_options_previously_deprecated(
+        self, tmpdir, error_msg, config, invalid
+    ):
+        # This test and related methods can be removed when no longer needed.
+        # Deprecation postponed due to push-back from the community in
+        # https://github.com/pypa/setuptools/issues/4910
+        fake_env(tmpdir, config)
+        with pytest.warns(SetuptoolsDeprecationWarning, match=re.escape(error_msg)):
+            dist = get_dist(tmpdir).__enter__()
+
+        tmpdir.join('setup.cfg').remove()
+
+        for field, value in invalid.items():
+            attr = field.replace("-", "_").lower()
+            assert getattr(dist.metadata, attr) == value
+
+
+class TestOptions:
+    def test_basic(self, tmpdir):
+        fake_env(
+            tmpdir,
+            '[options]\n'
+            'zip_safe = True\n'
+            'include_package_data = yes\n'
+            'package_dir = b=c, =src\n'
+            'packages = pack_a, pack_b.subpack\n'
+            'namespace_packages = pack1, pack2\n'
+            'scripts = bin/one.py, bin/two.py\n'
+            'eager_resources = bin/one.py, bin/two.py\n'
+            'install_requires = docutils>=0.3; pack ==1.1, ==1.3; hey\n'
+            'setup_requires = docutils>=0.3; spack ==1.1, ==1.3; there\n'
+            'dependency_links = http://some.com/here/1, '
+            'http://some.com/there/2\n'
+            'python_requires = >=1.0, !=2.8\n'
+            'py_modules = module1, module2\n',
+        )
+        deprec = pytest.warns(SetuptoolsDeprecationWarning, match="namespace_packages")
+        with deprec, get_dist(tmpdir) as dist:
+            assert dist.zip_safe
+            assert dist.include_package_data
+            assert dist.package_dir == {'': 'src', 'b': 'c'}
+            assert dist.packages == ['pack_a', 'pack_b.subpack']
+            assert dist.namespace_packages == ['pack1', 'pack2']
+            assert dist.scripts == ['bin/one.py', 'bin/two.py']
+            assert dist.dependency_links == ([
+                'http://some.com/here/1',
+                'http://some.com/there/2',
+            ])
+            assert dist.install_requires == ([
+                'docutils>=0.3',
+                'pack==1.1,==1.3',
+                'hey',
+            ])
+            assert dist.setup_requires == ([
+                'docutils>=0.3',
+                'spack ==1.1, ==1.3',
+                'there',
+            ])
+            assert dist.python_requires == '>=1.0, !=2.8'
+            assert dist.py_modules == ['module1', 'module2']
+
+    def test_multiline(self, tmpdir):
+        fake_env(
+            tmpdir,
+            '[options]\n'
+            'package_dir = \n'
+            '  b=c\n'
+            '  =src\n'
+            'packages = \n'
+            '  pack_a\n'
+            '  pack_b.subpack\n'
+            'namespace_packages = \n'
+            '  pack1\n'
+            '  pack2\n'
+            'scripts = \n'
+            '  bin/one.py\n'
+            '  bin/two.py\n'
+            'eager_resources = \n'
+            '  bin/one.py\n'
+            '  bin/two.py\n'
+            'install_requires = \n'
+            '  docutils>=0.3\n'
+            '  pack ==1.1, ==1.3\n'
+            '  hey\n'
+            'setup_requires = \n'
+            '  docutils>=0.3\n'
+            '  spack ==1.1, ==1.3\n'
+            '  there\n'
+            'dependency_links = \n'
+            '  http://some.com/here/1\n'
+            '  http://some.com/there/2\n',
+        )
+        deprec = pytest.warns(SetuptoolsDeprecationWarning, match="namespace_packages")
+        with deprec, get_dist(tmpdir) as dist:
+            assert dist.package_dir == {'': 'src', 'b': 'c'}
+            assert dist.packages == ['pack_a', 'pack_b.subpack']
+            assert dist.namespace_packages == ['pack1', 'pack2']
+            assert dist.scripts == ['bin/one.py', 'bin/two.py']
+            assert dist.dependency_links == ([
+                'http://some.com/here/1',
+                'http://some.com/there/2',
+            ])
+            assert dist.install_requires == ([
+                'docutils>=0.3',
+                'pack==1.1,==1.3',
+                'hey',
+            ])
+            assert dist.setup_requires == ([
+                'docutils>=0.3',
+                'spack ==1.1, ==1.3',
+                'there',
+            ])
+
+    def test_package_dir_fail(self, tmpdir):
+        fake_env(tmpdir, '[options]\npackage_dir = a b\n')
+        with get_dist(tmpdir, parse=False) as dist:
+            with pytest.raises(DistutilsOptionError):
+                dist.parse_config_files()
+
+    def test_package_data(self, tmpdir):
+        fake_env(
+            tmpdir,
+            '[options.package_data]\n'
+            '* = *.txt, *.rst\n'
+            'hello = *.msg\n'
+            '\n'
+            '[options.exclude_package_data]\n'
+            '* = fake1.txt, fake2.txt\n'
+            'hello = *.dat\n',
+        )
+
+        with get_dist(tmpdir) as dist:
+            assert dist.package_data == {
+                '': ['*.txt', '*.rst'],
+                'hello': ['*.msg'],
+            }
+            assert dist.exclude_package_data == {
+                '': ['fake1.txt', 'fake2.txt'],
+                'hello': ['*.dat'],
+            }
+
+    def test_packages(self, tmpdir):
+        fake_env(tmpdir, '[options]\npackages = find:\n')
+
+        with get_dist(tmpdir) as dist:
+            assert dist.packages == ['fake_package']
+
+    def test_find_directive(self, tmpdir):
+        dir_package, config = fake_env(tmpdir, '[options]\npackages = find:\n')
+
+        make_package_dir('sub_one', dir_package)
+        make_package_dir('sub_two', dir_package)
+
+        with get_dist(tmpdir) as dist:
+            assert set(dist.packages) == set([
+                'fake_package',
+                'fake_package.sub_two',
+                'fake_package.sub_one',
+            ])
+
+        config.write(
+            '[options]\n'
+            'packages = find:\n'
+            '\n'
+            '[options.packages.find]\n'
+            'where = .\n'
+            'include =\n'
+            '    fake_package.sub_one\n'
+            '    two\n'
+        )
+        with get_dist(tmpdir) as dist:
+            assert dist.packages == ['fake_package.sub_one']
+
+        config.write(
+            '[options]\n'
+            'packages = find:\n'
+            '\n'
+            '[options.packages.find]\n'
+            'exclude =\n'
+            '    fake_package.sub_one\n'
+        )
+        with get_dist(tmpdir) as dist:
+            assert set(dist.packages) == set(['fake_package', 'fake_package.sub_two'])
+
+    def test_find_namespace_directive(self, tmpdir):
+        dir_package, config = fake_env(
+            tmpdir, '[options]\npackages = find_namespace:\n'
+        )
+
+        make_package_dir('sub_one', dir_package)
+        make_package_dir('sub_two', dir_package, ns=True)
+
+        with get_dist(tmpdir) as dist:
+            assert set(dist.packages) == {
+                'fake_package',
+                'fake_package.sub_two',
+                'fake_package.sub_one',
+            }
+
+        config.write(
+            '[options]\n'
+            'packages = find_namespace:\n'
+            '\n'
+            '[options.packages.find]\n'
+            'where = .\n'
+            'include =\n'
+            '    fake_package.sub_one\n'
+            '    two\n'
+        )
+        with get_dist(tmpdir) as dist:
+            assert dist.packages == ['fake_package.sub_one']
+
+        config.write(
+            '[options]\n'
+            'packages = find_namespace:\n'
+            '\n'
+            '[options.packages.find]\n'
+            'exclude =\n'
+            '    fake_package.sub_one\n'
+        )
+        with get_dist(tmpdir) as dist:
+            assert set(dist.packages) == {'fake_package', 'fake_package.sub_two'}
+
+    def test_extras_require(self, tmpdir):
+        fake_env(
+            tmpdir,
+            '[options.extras_require]\n'
+            'pdf = ReportLab>=1.2; RXP\n'
+            'rest = \n'
+            '  docutils>=0.3\n'
+            '  pack ==1.1, ==1.3\n',
+        )
+
+        with get_dist(tmpdir) as dist:
+            assert dist.extras_require == {
+                'pdf': ['ReportLab>=1.2', 'RXP'],
+                'rest': ['docutils>=0.3', 'pack==1.1,==1.3'],
+            }
+            assert set(dist.metadata.provides_extras) == {'pdf', 'rest'}
+
+    @pytest.mark.parametrize(
+        "config",
+        [
+            "[options.extras_require]\nfoo = bar;python_version<'3'",
+            "[options.extras_require]\nfoo = bar;os_name=='linux'",
+            "[options.extras_require]\nfoo = bar;python_version<'3'\n",
+            "[options.extras_require]\nfoo = bar;os_name=='linux'\n",
+            "[options]\ninstall_requires = bar;python_version<'3'",
+            "[options]\ninstall_requires = bar;os_name=='linux'",
+            "[options]\ninstall_requires = bar;python_version<'3'\n",
+            "[options]\ninstall_requires = bar;os_name=='linux'\n",
+        ],
+    )
+    def test_raises_accidental_env_marker_misconfig(self, config, tmpdir):
+        fake_env(tmpdir, config)
+        match = (
+            r"One of the parsed requirements in `(install_requires|extras_require.+)` "
+            "looks like a valid environment marker.*"
+        )
+        with pytest.raises(InvalidRequirement, match=match):
+            with get_dist(tmpdir) as _:
+                pass
+
+    @pytest.mark.parametrize(
+        "config",
+        [
+            "[options.extras_require]\nfoo = bar;python_version<3",
+            "[options.extras_require]\nfoo = bar;python_version<3\n",
+            "[options]\ninstall_requires = bar;python_version<3",
+            "[options]\ninstall_requires = bar;python_version<3\n",
+        ],
+    )
+    def test_warn_accidental_env_marker_misconfig(self, config, tmpdir):
+        fake_env(tmpdir, config)
+        match = (
+            r"One of the parsed requirements in `(install_requires|extras_require.+)` "
+            "looks like a valid environment marker.*"
+        )
+        with pytest.warns(SetuptoolsDeprecationWarning, match=match):
+            with get_dist(tmpdir) as _:
+                pass
+
+    @pytest.mark.parametrize(
+        "config",
+        [
+            "[options.extras_require]\nfoo =\n    bar;python_version<'3'",
+            "[options.extras_require]\nfoo = bar;baz\nboo = xxx;yyy",
+            "[options.extras_require]\nfoo =\n    bar;python_version<'3'\n",
+            "[options.extras_require]\nfoo = bar;baz\nboo = xxx;yyy\n",
+            "[options.extras_require]\nfoo =\n    bar\n    python_version<3\n",
+            "[options]\ninstall_requires =\n    bar;python_version<'3'",
+            "[options]\ninstall_requires = bar;baz\nboo = xxx;yyy",
+            "[options]\ninstall_requires =\n    bar;python_version<'3'\n",
+            "[options]\ninstall_requires = bar;baz\nboo = xxx;yyy\n",
+            "[options]\ninstall_requires =\n    bar\n    python_version<3\n",
+        ],
+    )
+    @pytest.mark.filterwarnings("error::setuptools.SetuptoolsDeprecationWarning")
+    def test_nowarn_accidental_env_marker_misconfig(self, config, tmpdir, recwarn):
+        fake_env(tmpdir, config)
+        num_warnings = len(recwarn)
+        with get_dist(tmpdir) as _:
+            pass
+        # The examples are valid, no warnings shown
+        assert len(recwarn) == num_warnings
+
+    def test_dash_preserved_extras_require(self, tmpdir):
+        fake_env(tmpdir, '[options.extras_require]\nfoo-a = foo\nfoo_b = test\n')
+
+        with get_dist(tmpdir) as dist:
+            assert dist.extras_require == {'foo-a': ['foo'], 'foo_b': ['test']}
+
+    def test_entry_points(self, tmpdir):
+        _, config = fake_env(
+            tmpdir,
+            '[options.entry_points]\n'
+            'group1 = point1 = pack.module:func, '
+            '.point2 = pack.module2:func_rest [rest]\n'
+            'group2 = point3 = pack.module:func2\n',
+        )
+
+        with get_dist(tmpdir) as dist:
+            assert dist.entry_points == {
+                'group1': [
+                    'point1 = pack.module:func',
+                    '.point2 = pack.module2:func_rest [rest]',
+                ],
+                'group2': ['point3 = pack.module:func2'],
+            }
+
+        expected = (
+            '[blogtool.parsers]\n'
+            '.rst = some.nested.module:SomeClass.some_classmethod[reST]\n'
+        )
+
+        tmpdir.join('entry_points').write(expected)
+
+        # From file.
+        config.write('[options]\nentry_points = file: entry_points\n')
+
+        with get_dist(tmpdir) as dist:
+            assert dist.entry_points == expected
+
+    def test_case_sensitive_entry_points(self, tmpdir):
+        fake_env(
+            tmpdir,
+            '[options.entry_points]\n'
+            'GROUP1 = point1 = pack.module:func, '
+            '.point2 = pack.module2:func_rest [rest]\n'
+            'group2 = point3 = pack.module:func2\n',
+        )
+
+        with get_dist(tmpdir) as dist:
+            assert dist.entry_points == {
+                'GROUP1': [
+                    'point1 = pack.module:func',
+                    '.point2 = pack.module2:func_rest [rest]',
+                ],
+                'group2': ['point3 = pack.module:func2'],
+            }
+
+    def test_data_files(self, tmpdir):
+        fake_env(
+            tmpdir,
+            '[options.data_files]\n'
+            'cfg =\n'
+            '      a/b.conf\n'
+            '      c/d.conf\n'
+            'data = e/f.dat, g/h.dat\n',
+        )
+
+        with get_dist(tmpdir) as dist:
+            expected = [
+                ('cfg', ['a/b.conf', 'c/d.conf']),
+                ('data', ['e/f.dat', 'g/h.dat']),
+            ]
+            assert sorted(dist.data_files) == sorted(expected)
+
+    def test_data_files_globby(self, tmpdir):
+        fake_env(
+            tmpdir,
+            '[options.data_files]\n'
+            'cfg =\n'
+            '      a/b.conf\n'
+            '      c/d.conf\n'
+            'data = *.dat\n'
+            'icons = \n'
+            '      *.ico\n'
+            'audio = \n'
+            '      *.wav\n'
+            '      sounds.db\n',
+        )
+
+        # Create dummy files for glob()'s sake:
+        tmpdir.join('a.dat').write('')
+        tmpdir.join('b.dat').write('')
+        tmpdir.join('c.dat').write('')
+        tmpdir.join('a.ico').write('')
+        tmpdir.join('b.ico').write('')
+        tmpdir.join('c.ico').write('')
+        tmpdir.join('beep.wav').write('')
+        tmpdir.join('boop.wav').write('')
+        tmpdir.join('sounds.db').write('')
+
+        with get_dist(tmpdir) as dist:
+            expected = [
+                ('cfg', ['a/b.conf', 'c/d.conf']),
+                ('data', ['a.dat', 'b.dat', 'c.dat']),
+                ('icons', ['a.ico', 'b.ico', 'c.ico']),
+                ('audio', ['beep.wav', 'boop.wav', 'sounds.db']),
+            ]
+            assert sorted(dist.data_files) == sorted(expected)
+
+    def test_python_requires_simple(self, tmpdir):
+        fake_env(
+            tmpdir,
+            DALS(
+                """
+            [options]
+            python_requires=>=2.7
+            """
+            ),
+        )
+        with get_dist(tmpdir) as dist:
+            dist.parse_config_files()
+
+    def test_python_requires_compound(self, tmpdir):
+        fake_env(
+            tmpdir,
+            DALS(
+                """
+            [options]
+            python_requires=>=2.7,!=3.0.*
+            """
+            ),
+        )
+        with get_dist(tmpdir) as dist:
+            dist.parse_config_files()
+
+    def test_python_requires_invalid(self, tmpdir):
+        fake_env(
+            tmpdir,
+            DALS(
+                """
+            [options]
+            python_requires=invalid
+            """
+            ),
+        )
+        with pytest.raises(Exception):
+            with get_dist(tmpdir) as dist:
+                dist.parse_config_files()
+
+    def test_cmdclass(self, tmpdir):
+        module_path = Path(tmpdir, "src/custom_build.py")  # auto discovery for src
+        module_path.parent.mkdir(parents=True, exist_ok=True)
+        module_path.write_text(
+            "from distutils.core import Command\nclass CustomCmd(Command): pass\n",
+            encoding="utf-8",
+        )
+
+        setup_cfg = """
+            [options]
+            cmdclass =
+                customcmd = custom_build.CustomCmd
+        """
+        fake_env(tmpdir, inspect.cleandoc(setup_cfg))
+
+        with get_dist(tmpdir) as dist:
+            cmdclass = dist.cmdclass['customcmd']
+            assert cmdclass.__name__ == "CustomCmd"
+            assert cmdclass.__module__ == "custom_build"
+            assert module_path.samefile(inspect.getfile(cmdclass))
+
+    def test_requirements_file(self, tmpdir):
+        fake_env(
+            tmpdir,
+            DALS(
+                """
+            [options]
+            install_requires = file:requirements.txt
+            [options.extras_require]
+            colors = file:requirements-extra.txt
+            """
+            ),
+        )
+
+        tmpdir.join('requirements.txt').write('\ndocutils>=0.3\n\n')
+        tmpdir.join('requirements-extra.txt').write('colorama')
+
+        with get_dist(tmpdir) as dist:
+            assert dist.install_requires == ['docutils>=0.3']
+            assert dist.extras_require == {'colors': ['colorama']}
+
+
+saved_dist_init = _Distribution.__init__
+
+
+class TestExternalSetters:
+    # During creation of the setuptools Distribution() object, we call
+    # the init of the parent distutils Distribution object via
+    # _Distribution.__init__ ().
+    #
+    # It's possible distutils calls out to various keyword
+    # implementations (i.e. distutils.setup_keywords entry points)
+    # that may set a range of variables.
+    #
+    # This wraps distutil's Distribution.__init__ and simulates
+    # pbr or something else setting these values.
+    def _fake_distribution_init(self, dist, attrs):
+        saved_dist_init(dist, attrs)
+        # see self._DISTUTILS_UNSUPPORTED_METADATA
+        dist.metadata.long_description_content_type = 'text/something'
+        # Test overwrite setup() args
+        dist.metadata.project_urls = {
+            'Link One': 'https://example.com/one/',
+            'Link Two': 'https://example.com/two/',
+        }
+
+    @patch.object(_Distribution, '__init__', autospec=True)
+    def test_external_setters(self, mock_parent_init, tmpdir):
+        mock_parent_init.side_effect = self._fake_distribution_init
+
+        dist = Distribution(attrs={'project_urls': {'will_be': 'ignored'}})
+
+        assert dist.metadata.long_description_content_type == 'text/something'
+        assert dist.metadata.project_urls == {
+            'Link One': 'https://example.com/one/',
+            'Link Two': 'https://example.com/two/',
+        }
diff --git a/setuptools/tests/contexts.py b/setuptools/tests/contexts.py
new file mode 100644
index 0000000000..97cceea0e7
--- /dev/null
+++ b/setuptools/tests/contexts.py
@@ -0,0 +1,145 @@
+import contextlib
+import io
+import os
+import shutil
+import site
+import sys
+import tempfile
+
+from filelock import FileLock
+
+
+@contextlib.contextmanager
+def tempdir(cd=lambda dir: None, **kwargs):
+    temp_dir = tempfile.mkdtemp(**kwargs)
+    orig_dir = os.getcwd()
+    try:
+        cd(temp_dir)
+        yield temp_dir
+    finally:
+        cd(orig_dir)
+        shutil.rmtree(temp_dir)
+
+
+@contextlib.contextmanager
+def environment(**replacements):
+    """
+    In a context, patch the environment with replacements. Pass None values
+    to clear the values.
+    """
+    saved = dict((key, os.environ[key]) for key in replacements if key in os.environ)
+
+    # remove values that are null
+    remove = (key for (key, value) in replacements.items() if value is None)
+    for key in list(remove):
+        os.environ.pop(key, None)
+        replacements.pop(key)
+
+    os.environ.update(replacements)
+
+    try:
+        yield saved
+    finally:
+        for key in replacements:
+            os.environ.pop(key, None)
+        os.environ.update(saved)
+
+
+@contextlib.contextmanager
+def quiet():
+    """
+    Redirect stdout/stderr to StringIO objects to prevent console output from
+    distutils commands.
+    """
+
+    old_stdout = sys.stdout
+    old_stderr = sys.stderr
+    new_stdout = sys.stdout = io.StringIO()
+    new_stderr = sys.stderr = io.StringIO()
+    try:
+        yield new_stdout, new_stderr
+    finally:
+        new_stdout.seek(0)
+        new_stderr.seek(0)
+        sys.stdout = old_stdout
+        sys.stderr = old_stderr
+
+
+@contextlib.contextmanager
+def save_user_site_setting():
+    saved = site.ENABLE_USER_SITE
+    try:
+        yield saved
+    finally:
+        site.ENABLE_USER_SITE = saved
+
+
+@contextlib.contextmanager
+def save_pkg_resources_state():
+    import pkg_resources
+
+    pr_state = pkg_resources.__getstate__()
+    # also save sys.path
+    sys_path = sys.path[:]
+    try:
+        yield pr_state, sys_path
+    finally:
+        sys.path[:] = sys_path
+        pkg_resources.__setstate__(pr_state)
+
+
+@contextlib.contextmanager
+def suppress_exceptions(*excs):
+    try:
+        yield
+    except excs:
+        pass
+
+
+def multiproc(request):
+    """
+    Return True if running under xdist and multiple
+    workers are used.
+    """
+    try:
+        worker_id = request.getfixturevalue('worker_id')
+    except Exception:
+        return False
+    return worker_id != 'master'
+
+
+@contextlib.contextmanager
+def session_locked_tmp_dir(request, tmp_path_factory, name):
+    """Uses a file lock to guarantee only one worker can access a temp dir"""
+    # get the temp directory shared by all workers
+    base = tmp_path_factory.getbasetemp()
+    shared_dir = base.parent if multiproc(request) else base
+
+    locked_dir = shared_dir / name
+    with FileLock(locked_dir.with_suffix(".lock")):
+        # ^-- prevent multiple workers to access the directory at once
+        locked_dir.mkdir(exist_ok=True, parents=True)
+        yield locked_dir
+
+
+@contextlib.contextmanager
+def save_paths():
+    """Make sure ``sys.path``, ``sys.meta_path`` and ``sys.path_hooks`` are preserved"""
+    prev = sys.path[:], sys.meta_path[:], sys.path_hooks[:]
+
+    try:
+        yield
+    finally:
+        sys.path, sys.meta_path, sys.path_hooks = prev
+
+
+@contextlib.contextmanager
+def save_sys_modules():
+    """Make sure initial ``sys.modules`` is preserved"""
+    prev_modules = sys.modules
+
+    try:
+        sys.modules = sys.modules.copy()
+        yield
+    finally:
+        sys.modules = prev_modules
diff --git a/setuptools/tests/doctest.py b/setuptools/tests/doctest.py
deleted file mode 100644
index bffce58f4c..0000000000
--- a/setuptools/tests/doctest.py
+++ /dev/null
@@ -1,2679 +0,0 @@
-# Module doctest.
-# Released to the public domain 16-Jan-2001, by Tim Peters (tim@python.org).
-# Major enhancements and refactoring by:
-#     Jim Fulton
-#     Edward Loper
-
-# Provided as-is; use at your own risk; no warranty; no promises; enjoy!
-
-try:
-    basestring
-except NameError:
-    basestring = str,unicode
-
-try:
-    enumerate
-except NameError:
-    def enumerate(seq):
-        return zip(range(len(seq)),seq)
-
-r"""Module doctest -- a framework for running examples in docstrings.
-
-In simplest use, end each module M to be tested with:
-
-def _test():
-    import doctest
-    doctest.testmod()
-
-if __name__ == "__main__":
-    _test()
-
-Then running the module as a script will cause the examples in the
-docstrings to get executed and verified:
-
-python M.py
-
-This won't display anything unless an example fails, in which case the
-failing example(s) and the cause(s) of the failure(s) are printed to stdout
-(why not stderr? because stderr is a lame hack <0.2 wink>), and the final
-line of output is "Test failed.".
-
-Run it with the -v switch instead:
-
-python M.py -v
-
-and a detailed report of all examples tried is printed to stdout, along
-with assorted summaries at the end.
-
-You can force verbose mode by passing "verbose=True" to testmod, or prohibit
-it by passing "verbose=False".  In either of those cases, sys.argv is not
-examined by testmod.
-
-There are a variety of other ways to run doctests, including integration
-with the unittest framework, and support for running non-Python text
-files containing doctests.  There are also many ways to override parts
-of doctest's default behaviors.  See the Library Reference Manual for
-details.
-"""
-
-__docformat__ = 'reStructuredText en'
-
-__all__ = [
-    # 0, Option Flags
-    'register_optionflag',
-    'DONT_ACCEPT_TRUE_FOR_1',
-    'DONT_ACCEPT_BLANKLINE',
-    'NORMALIZE_WHITESPACE',
-    'ELLIPSIS',
-    'IGNORE_EXCEPTION_DETAIL',
-    'COMPARISON_FLAGS',
-    'REPORT_UDIFF',
-    'REPORT_CDIFF',
-    'REPORT_NDIFF',
-    'REPORT_ONLY_FIRST_FAILURE',
-    'REPORTING_FLAGS',
-    # 1. Utility Functions
-    'is_private',
-    # 2. Example & DocTest
-    'Example',
-    'DocTest',
-    # 3. Doctest Parser
-    'DocTestParser',
-    # 4. Doctest Finder
-    'DocTestFinder',
-    # 5. Doctest Runner
-    'DocTestRunner',
-    'OutputChecker',
-    'DocTestFailure',
-    'UnexpectedException',
-    'DebugRunner',
-    # 6. Test Functions
-    'testmod',
-    'testfile',
-    'run_docstring_examples',
-    # 7. Tester
-    'Tester',
-    # 8. Unittest Support
-    'DocTestSuite',
-    'DocFileSuite',
-    'set_unittest_reportflags',
-    # 9. Debugging Support
-    'script_from_examples',
-    'testsource',
-    'debug_src',
-    'debug',
-]
-
-import __future__
-
-import sys, traceback, inspect, linecache, os, re, types
-import unittest, difflib, pdb, tempfile
-import warnings
-from StringIO import StringIO
-
-# Don't whine about the deprecated is_private function in this
-# module's tests.
-warnings.filterwarnings("ignore", "is_private", DeprecationWarning,
-                        __name__, 0)
-
-# There are 4 basic classes:
-#  - Example: a  pair, plus an intra-docstring line number.
-#  - DocTest: a collection of examples, parsed from a docstring, plus
-#    info about where the docstring came from (name, filename, lineno).
-#  - DocTestFinder: extracts DocTests from a given object's docstring and
-#    its contained objects' docstrings.
-#  - DocTestRunner: runs DocTest cases, and accumulates statistics.
-#
-# So the basic picture is:
-#
-#                             list of:
-# +------+                   +---------+                   +-------+
-# |object| --DocTestFinder-> | DocTest | --DocTestRunner-> |results|
-# +------+                   +---------+                   +-------+
-#                            | Example |
-#                            |   ...   |
-#                            | Example |
-#                            +---------+
-
-# Option constants.
-
-OPTIONFLAGS_BY_NAME = {}
-def register_optionflag(name):
-    flag = 1 << len(OPTIONFLAGS_BY_NAME)
-    OPTIONFLAGS_BY_NAME[name] = flag
-    return flag
-
-DONT_ACCEPT_TRUE_FOR_1 = register_optionflag('DONT_ACCEPT_TRUE_FOR_1')
-DONT_ACCEPT_BLANKLINE = register_optionflag('DONT_ACCEPT_BLANKLINE')
-NORMALIZE_WHITESPACE = register_optionflag('NORMALIZE_WHITESPACE')
-ELLIPSIS = register_optionflag('ELLIPSIS')
-IGNORE_EXCEPTION_DETAIL = register_optionflag('IGNORE_EXCEPTION_DETAIL')
-
-COMPARISON_FLAGS = (DONT_ACCEPT_TRUE_FOR_1 |
-                    DONT_ACCEPT_BLANKLINE |
-                    NORMALIZE_WHITESPACE |
-                    ELLIPSIS |
-                    IGNORE_EXCEPTION_DETAIL)
-
-REPORT_UDIFF = register_optionflag('REPORT_UDIFF')
-REPORT_CDIFF = register_optionflag('REPORT_CDIFF')
-REPORT_NDIFF = register_optionflag('REPORT_NDIFF')
-REPORT_ONLY_FIRST_FAILURE = register_optionflag('REPORT_ONLY_FIRST_FAILURE')
-
-REPORTING_FLAGS = (REPORT_UDIFF |
-                   REPORT_CDIFF |
-                   REPORT_NDIFF |
-                   REPORT_ONLY_FIRST_FAILURE)
-
-# Special string markers for use in `want` strings:
-BLANKLINE_MARKER = ''
-ELLIPSIS_MARKER = '...'
-
-######################################################################
-## Table of Contents
-######################################################################
-#  1. Utility Functions
-#  2. Example & DocTest -- store test cases
-#  3. DocTest Parser -- extracts examples from strings
-#  4. DocTest Finder -- extracts test cases from objects
-#  5. DocTest Runner -- runs test cases
-#  6. Test Functions -- convenient wrappers for testing
-#  7. Tester Class -- for backwards compatibility
-#  8. Unittest Support
-#  9. Debugging Support
-# 10. Example Usage
-
-######################################################################
-## 1. Utility Functions
-######################################################################
-
-def is_private(prefix, base):
-    """prefix, base -> true iff name prefix + "." + base is "private".
-
-    Prefix may be an empty string, and base does not contain a period.
-    Prefix is ignored (although functions you write conforming to this
-    protocol may make use of it).
-    Return true iff base begins with an (at least one) underscore, but
-    does not both begin and end with (at least) two underscores.
-
-    >>> is_private("a.b", "my_func")
-    False
-    >>> is_private("____", "_my_func")
-    True
-    >>> is_private("someclass", "__init__")
-    False
-    >>> is_private("sometypo", "__init_")
-    True
-    >>> is_private("x.y.z", "_")
-    True
-    >>> is_private("_x.y.z", "__")
-    False
-    >>> is_private("", "")  # senseless but consistent
-    False
-    """
-    warnings.warn("is_private is deprecated; it wasn't useful; "
-                  "examine DocTestFinder.find() lists instead",
-                  DeprecationWarning, stacklevel=2)
-    return base[:1] == "_" and not base[:2] == "__" == base[-2:]
-
-def _extract_future_flags(globs):
-    """
-    Return the compiler-flags associated with the future features that
-    have been imported into the given namespace (globs).
-    """
-    flags = 0
-    for fname in __future__.all_feature_names:
-        feature = globs.get(fname, None)
-        if feature is getattr(__future__, fname):
-            flags |= feature.compiler_flag
-    return flags
-
-def _normalize_module(module, depth=2):
-    """
-    Return the module specified by `module`.  In particular:
-      - If `module` is a module, then return module.
-      - If `module` is a string, then import and return the
-        module with that name.
-      - If `module` is None, then return the calling module.
-        The calling module is assumed to be the module of
-        the stack frame at the given depth in the call stack.
-    """
-    if inspect.ismodule(module):
-        return module
-    elif isinstance(module, (str, unicode)):
-        return __import__(module, globals(), locals(), ["*"])
-    elif module is None:
-        return sys.modules[sys._getframe(depth).f_globals['__name__']]
-    else:
-        raise TypeError("Expected a module, string, or None")
-
-def _indent(s, indent=4):
-    """
-    Add the given number of space characters to the beginning every
-    non-blank line in `s`, and return the result.
-    """
-    # This regexp matches the start of non-blank lines:
-    return re.sub('(?m)^(?!$)', indent*' ', s)
-
-def _exception_traceback(exc_info):
-    """
-    Return a string containing a traceback message for the given
-    exc_info tuple (as returned by sys.exc_info()).
-    """
-    # Get a traceback message.
-    excout = StringIO()
-    exc_type, exc_val, exc_tb = exc_info
-    traceback.print_exception(exc_type, exc_val, exc_tb, file=excout)
-    return excout.getvalue()
-
-# Override some StringIO methods.
-class _SpoofOut(StringIO):
-    def getvalue(self):
-        result = StringIO.getvalue(self)
-        # If anything at all was written, make sure there's a trailing
-        # newline.  There's no way for the expected output to indicate
-        # that a trailing newline is missing.
-        if result and not result.endswith("\n"):
-            result += "\n"
-        # Prevent softspace from screwing up the next test case, in
-        # case they used print with a trailing comma in an example.
-        if hasattr(self, "softspace"):
-            del self.softspace
-        return result
-
-    def truncate(self,   size=None):
-        StringIO.truncate(self, size)
-        if hasattr(self, "softspace"):
-            del self.softspace
-
-# Worst-case linear-time ellipsis matching.
-def _ellipsis_match(want, got):
-    """
-    Essentially the only subtle case:
-    >>> _ellipsis_match('aa...aa', 'aaa')
-    False
-    """
-    if want.find(ELLIPSIS_MARKER)==-1:
-        return want == got
-
-    # Find "the real" strings.
-    ws = want.split(ELLIPSIS_MARKER)
-    assert len(ws) >= 2
-
-    # Deal with exact matches possibly needed at one or both ends.
-    startpos, endpos = 0, len(got)
-    w = ws[0]
-    if w:   # starts with exact match
-        if got.startswith(w):
-            startpos = len(w)
-            del ws[0]
-        else:
-            return False
-    w = ws[-1]
-    if w:   # ends with exact match
-        if got.endswith(w):
-            endpos -= len(w)
-            del ws[-1]
-        else:
-            return False
-
-    if startpos > endpos:
-        # Exact end matches required more characters than we have, as in
-        # _ellipsis_match('aa...aa', 'aaa')
-        return False
-
-    # For the rest, we only need to find the leftmost non-overlapping
-    # match for each piece.  If there's no overall match that way alone,
-    # there's no overall match period.
-    for w in ws:
-        # w may be '' at times, if there are consecutive ellipses, or
-        # due to an ellipsis at the start or end of `want`.  That's OK.
-        # Search for an empty string succeeds, and doesn't change startpos.
-        startpos = got.find(w, startpos, endpos)
-        if startpos < 0:
-            return False
-        startpos += len(w)
-
-    return True
-
-def _comment_line(line):
-    "Return a commented form of the given line"
-    line = line.rstrip()
-    if line:
-        return '# '+line
-    else:
-        return '#'
-
-class _OutputRedirectingPdb(pdb.Pdb):
-    """
-    A specialized version of the python debugger that redirects stdout
-    to a given stream when interacting with the user.  Stdout is *not*
-    redirected when traced code is executed.
-    """
-    def __init__(self, out):
-        self.__out = out
-        pdb.Pdb.__init__(self)
-
-    def trace_dispatch(self, *args):
-        # Redirect stdout to the given stream.
-        save_stdout = sys.stdout
-        sys.stdout = self.__out
-        # Call Pdb's trace dispatch method.
-        try:
-            return pdb.Pdb.trace_dispatch(self, *args)
-        finally:
-            sys.stdout = save_stdout
-
-# [XX] Normalize with respect to os.path.pardir?
-def _module_relative_path(module, path):
-    if not inspect.ismodule(module):
-        raise TypeError, 'Expected a module: %r' % module
-    if path.startswith('/'):
-        raise ValueError, 'Module-relative files may not have absolute paths'
-
-    # Find the base directory for the path.
-    if hasattr(module, '__file__'):
-        # A normal module/package
-        basedir = os.path.split(module.__file__)[0]
-    elif module.__name__ == '__main__':
-        # An interactive session.
-        if len(sys.argv)>0 and sys.argv[0] != '':
-            basedir = os.path.split(sys.argv[0])[0]
-        else:
-            basedir = os.curdir
-    else:
-        # A module w/o __file__ (this includes builtins)
-        raise ValueError("Can't resolve paths relative to the module " +
-                         module + " (it has no __file__)")
-
-    # Combine the base directory and the path.
-    return os.path.join(basedir, *(path.split('/')))
-
-######################################################################
-## 2. Example & DocTest
-######################################################################
-## - An "example" is a  pair, where "source" is a
-##   fragment of source code, and "want" is the expected output for
-##   "source."  The Example class also includes information about
-##   where the example was extracted from.
-##
-## - A "doctest" is a collection of examples, typically extracted from
-##   a string (such as an object's docstring).  The DocTest class also
-##   includes information about where the string was extracted from.
-
-class Example:
-    """
-    A single doctest example, consisting of source code and expected
-    output.  `Example` defines the following attributes:
-
-      - source: A single Python statement, always ending with a newline.
-        The constructor adds a newline if needed.
-
-      - want: The expected output from running the source code (either
-        from stdout, or a traceback in case of exception).  `want` ends
-        with a newline unless it's empty, in which case it's an empty
-        string.  The constructor adds a newline if needed.
-
-      - exc_msg: The exception message generated by the example, if
-        the example is expected to generate an exception; or `None` if
-        it is not expected to generate an exception.  This exception
-        message is compared against the return value of
-        `traceback.format_exception_only()`.  `exc_msg` ends with a
-        newline unless it's `None`.  The constructor adds a newline
-        if needed.
-
-      - lineno: The line number within the DocTest string containing
-        this Example where the Example begins.  This line number is
-        zero-based, with respect to the beginning of the DocTest.
-
-      - indent: The example's indentation in the DocTest string.
-        I.e., the number of space characters that preceed the
-        example's first prompt.
-
-      - options: A dictionary mapping from option flags to True or
-        False, which is used to override default options for this
-        example.  Any option flags not contained in this dictionary
-        are left at their default value (as specified by the
-        DocTestRunner's optionflags).  By default, no options are set.
-    """
-    def __init__(self, source, want, exc_msg=None, lineno=0, indent=0,
-                 options=None):
-        # Normalize inputs.
-        if not source.endswith('\n'):
-            source += '\n'
-        if want and not want.endswith('\n'):
-            want += '\n'
-        if exc_msg is not None and not exc_msg.endswith('\n'):
-            exc_msg += '\n'
-        # Store properties.
-        self.source = source
-        self.want = want
-        self.lineno = lineno
-        self.indent = indent
-        if options is None: options = {}
-        self.options = options
-        self.exc_msg = exc_msg
-
-class DocTest:
-    """
-    A collection of doctest examples that should be run in a single
-    namespace.  Each `DocTest` defines the following attributes:
-
-      - examples: the list of examples.
-
-      - globs: The namespace (aka globals) that the examples should
-        be run in.
-
-      - name: A name identifying the DocTest (typically, the name of
-        the object whose docstring this DocTest was extracted from).
-
-      - filename: The name of the file that this DocTest was extracted
-        from, or `None` if the filename is unknown.
-
-      - lineno: The line number within filename where this DocTest
-        begins, or `None` if the line number is unavailable.  This
-        line number is zero-based, with respect to the beginning of
-        the file.
-
-      - docstring: The string that the examples were extracted from,
-        or `None` if the string is unavailable.
-    """
-    def __init__(self, examples, globs, name, filename, lineno, docstring):
-        """
-        Create a new DocTest containing the given examples.  The
-        DocTest's globals are initialized with a copy of `globs`.
-        """
-        assert not isinstance(examples, basestring), \
-               "DocTest no longer accepts str; use DocTestParser instead"
-        self.examples = examples
-        self.docstring = docstring
-        self.globs = globs.copy()
-        self.name = name
-        self.filename = filename
-        self.lineno = lineno
-
-    def __repr__(self):
-        if len(self.examples) == 0:
-            examples = 'no examples'
-        elif len(self.examples) == 1:
-            examples = '1 example'
-        else:
-            examples = '%d examples' % len(self.examples)
-        return ('' %
-                (self.name, self.filename, self.lineno, examples))
-
-
-    # This lets us sort tests by name:
-    def __cmp__(self, other):
-        if not isinstance(other, DocTest):
-            return -1
-        return cmp((self.name, self.filename, self.lineno, id(self)),
-                   (other.name, other.filename, other.lineno, id(other)))
-
-######################################################################
-## 3. DocTestParser
-######################################################################
-
-class DocTestParser:
-    """
-    A class used to parse strings containing doctest examples.
-    """
-    # This regular expression is used to find doctest examples in a
-    # string.  It defines three groups: `source` is the source code
-    # (including leading indentation and prompts); `indent` is the
-    # indentation of the first (PS1) line of the source code; and
-    # `want` is the expected output (including leading indentation).
-    _EXAMPLE_RE = re.compile(r'''
-        # Source consists of a PS1 line followed by zero or more PS2 lines.
-        (?P
-            (?:^(?P [ ]*) >>>    .*)    # PS1 line
-            (?:\n           [ ]*  \.\.\. .*)*)  # PS2 lines
-        \n?
-        # Want consists of any non-blank lines that do not start with PS1.
-        (?P (?:(?![ ]*$)    # Not a blank line
-                     (?![ ]*>>>)  # Not a line starting with PS1
-                     .*$\n?       # But any other line
-                  )*)
-        ''', re.MULTILINE | re.VERBOSE)
-
-    # A regular expression for handling `want` strings that contain
-    # expected exceptions.  It divides `want` into three pieces:
-    #    - the traceback header line (`hdr`)
-    #    - the traceback stack (`stack`)
-    #    - the exception message (`msg`), as generated by
-    #      traceback.format_exception_only()
-    # `msg` may have multiple lines.  We assume/require that the
-    # exception message is the first non-indented line starting with a word
-    # character following the traceback header line.
-    _EXCEPTION_RE = re.compile(r"""
-        # Grab the traceback header.  Different versions of Python have
-        # said different things on the first traceback line.
-        ^(?P Traceback\ \(
-            (?: most\ recent\ call\ last
-            |   innermost\ last
-            ) \) :
-        )
-        \s* $                # toss trailing whitespace on the header.
-        (?P .*?)      # don't blink: absorb stuff until...
-        ^ (?P \w+ .*)   #     a line *starts* with alphanum.
-        """, re.VERBOSE | re.MULTILINE | re.DOTALL)
-
-    # A callable returning a true value iff its argument is a blank line
-    # or contains a single comment.
-    _IS_BLANK_OR_COMMENT = re.compile(r'^[ ]*(#.*)?$').match
-
-    def parse(self, string, name=''):
-        """
-        Divide the given string into examples and intervening text,
-        and return them as a list of alternating Examples and strings.
-        Line numbers for the Examples are 0-based.  The optional
-        argument `name` is a name identifying this string, and is only
-        used for error messages.
-        """
-        string = string.expandtabs()
-        # If all lines begin with the same indentation, then strip it.
-        min_indent = self._min_indent(string)
-        if min_indent > 0:
-            string = '\n'.join([l[min_indent:] for l in string.split('\n')])
-
-        output = []
-        charno, lineno = 0, 0
-        # Find all doctest examples in the string:
-        for m in self._EXAMPLE_RE.finditer(string):
-            # Add the pre-example text to `output`.
-            output.append(string[charno:m.start()])
-            # Update lineno (lines before this example)
-            lineno += string.count('\n', charno, m.start())
-            # Extract info from the regexp match.
-            (source, options, want, exc_msg) = \
-                     self._parse_example(m, name, lineno)
-            # Create an Example, and add it to the list.
-            if not self._IS_BLANK_OR_COMMENT(source):
-                output.append( Example(source, want, exc_msg,
-                                    lineno=lineno,
-                                    indent=min_indent+len(m.group('indent')),
-                                    options=options) )
-            # Update lineno (lines inside this example)
-            lineno += string.count('\n', m.start(), m.end())
-            # Update charno.
-            charno = m.end()
-        # Add any remaining post-example text to `output`.
-        output.append(string[charno:])
-        return output
-
-    def get_doctest(self, string, globs, name, filename, lineno):
-        """
-        Extract all doctest examples from the given string, and
-        collect them into a `DocTest` object.
-
-        `globs`, `name`, `filename`, and `lineno` are attributes for
-        the new `DocTest` object.  See the documentation for `DocTest`
-        for more information.
-        """
-        return DocTest(self.get_examples(string, name), globs,
-                       name, filename, lineno, string)
-
-    def get_examples(self, string, name=''):
-        """
-        Extract all doctest examples from the given string, and return
-        them as a list of `Example` objects.  Line numbers are
-        0-based, because it's most common in doctests that nothing
-        interesting appears on the same line as opening triple-quote,
-        and so the first interesting line is called \"line 1\" then.
-
-        The optional argument `name` is a name identifying this
-        string, and is only used for error messages.
-        """
-        return [x for x in self.parse(string, name)
-                if isinstance(x, Example)]
-
-    def _parse_example(self, m, name, lineno):
-        """
-        Given a regular expression match from `_EXAMPLE_RE` (`m`),
-        return a pair `(source, want)`, where `source` is the matched
-        example's source code (with prompts and indentation stripped);
-        and `want` is the example's expected output (with indentation
-        stripped).
-
-        `name` is the string's name, and `lineno` is the line number
-        where the example starts; both are used for error messages.
-        """
-        # Get the example's indentation level.
-        indent = len(m.group('indent'))
-
-        # Divide source into lines; check that they're properly
-        # indented; and then strip their indentation & prompts.
-        source_lines = m.group('source').split('\n')
-        self._check_prompt_blank(source_lines, indent, name, lineno)
-        self._check_prefix(source_lines[1:], ' '*indent + '.', name, lineno)
-        source = '\n'.join([sl[indent+4:] for sl in source_lines])
-
-        # Divide want into lines; check that it's properly indented; and
-        # then strip the indentation.  Spaces before the last newline should
-        # be preserved, so plain rstrip() isn't good enough.
-        want = m.group('want')
-        want_lines = want.split('\n')
-        if len(want_lines) > 1 and re.match(r' *$', want_lines[-1]):
-            del want_lines[-1]  # forget final newline & spaces after it
-        self._check_prefix(want_lines, ' '*indent, name,
-                           lineno + len(source_lines))
-        want = '\n'.join([wl[indent:] for wl in want_lines])
-
-        # If `want` contains a traceback message, then extract it.
-        m = self._EXCEPTION_RE.match(want)
-        if m:
-            exc_msg = m.group('msg')
-        else:
-            exc_msg = None
-
-        # Extract options from the source.
-        options = self._find_options(source, name, lineno)
-
-        return source, options, want, exc_msg
-
-    # This regular expression looks for option directives in the
-    # source code of an example.  Option directives are comments
-    # starting with "doctest:".  Warning: this may give false
-    # positives for string-literals that contain the string
-    # "#doctest:".  Eliminating these false positives would require
-    # actually parsing the string; but we limit them by ignoring any
-    # line containing "#doctest:" that is *followed* by a quote mark.
-    _OPTION_DIRECTIVE_RE = re.compile(r'#\s*doctest:\s*([^\n\'"]*)$',
-                                      re.MULTILINE)
-
-    def _find_options(self, source, name, lineno):
-        """
-        Return a dictionary containing option overrides extracted from
-        option directives in the given source string.
-
-        `name` is the string's name, and `lineno` is the line number
-        where the example starts; both are used for error messages.
-        """
-        options = {}
-        # (note: with the current regexp, this will match at most once:)
-        for m in self._OPTION_DIRECTIVE_RE.finditer(source):
-            option_strings = m.group(1).replace(',', ' ').split()
-            for option in option_strings:
-                if (option[0] not in '+-' or
-                    option[1:] not in OPTIONFLAGS_BY_NAME):
-                    raise ValueError('line %r of the doctest for %s '
-                                     'has an invalid option: %r' %
-                                     (lineno+1, name, option))
-                flag = OPTIONFLAGS_BY_NAME[option[1:]]
-                options[flag] = (option[0] == '+')
-        if options and self._IS_BLANK_OR_COMMENT(source):
-            raise ValueError('line %r of the doctest for %s has an option '
-                             'directive on a line with no example: %r' %
-                             (lineno, name, source))
-        return options
-
-    # This regular expression finds the indentation of every non-blank
-    # line in a string.
-    _INDENT_RE = re.compile('^([ ]*)(?=\S)', re.MULTILINE)
-
-    def _min_indent(self, s):
-        "Return the minimum indentation of any non-blank line in `s`"
-        indents = [len(indent) for indent in self._INDENT_RE.findall(s)]
-        if len(indents) > 0:
-            return min(indents)
-        else:
-            return 0
-
-    def _check_prompt_blank(self, lines, indent, name, lineno):
-        """
-        Given the lines of a source string (including prompts and
-        leading indentation), check to make sure that every prompt is
-        followed by a space character.  If any line is not followed by
-        a space character, then raise ValueError.
-        """
-        for i, line in enumerate(lines):
-            if len(line) >= indent+4 and line[indent+3] != ' ':
-                raise ValueError('line %r of the docstring for %s '
-                                 'lacks blank after %s: %r' %
-                                 (lineno+i+1, name,
-                                  line[indent:indent+3], line))
-
-    def _check_prefix(self, lines, prefix, name, lineno):
-        """
-        Check that every line in the given list starts with the given
-        prefix; if any line does not, then raise a ValueError.
-        """
-        for i, line in enumerate(lines):
-            if line and not line.startswith(prefix):
-                raise ValueError('line %r of the docstring for %s has '
-                                 'inconsistent leading whitespace: %r' %
-                                 (lineno+i+1, name, line))
-
-
-######################################################################
-## 4. DocTest Finder
-######################################################################
-
-class DocTestFinder:
-    """
-    A class used to extract the DocTests that are relevant to a given
-    object, from its docstring and the docstrings of its contained
-    objects.  Doctests can currently be extracted from the following
-    object types: modules, functions, classes, methods, staticmethods,
-    classmethods, and properties.
-    """
-
-    def __init__(self, verbose=False, parser=DocTestParser(),
-                 recurse=True, _namefilter=None, exclude_empty=True):
-        """
-        Create a new doctest finder.
-
-        The optional argument `parser` specifies a class or
-        function that should be used to create new DocTest objects (or
-        objects that implement the same interface as DocTest).  The
-        signature for this factory function should match the signature
-        of the DocTest constructor.
-
-        If the optional argument `recurse` is false, then `find` will
-        only examine the given object, and not any contained objects.
-
-        If the optional argument `exclude_empty` is false, then `find`
-        will include tests for objects with empty docstrings.
-        """
-        self._parser = parser
-        self._verbose = verbose
-        self._recurse = recurse
-        self._exclude_empty = exclude_empty
-        # _namefilter is undocumented, and exists only for temporary backward-
-        # compatibility support of testmod's deprecated isprivate mess.
-        self._namefilter = _namefilter
-
-    def find(self, obj, name=None, module=None, globs=None,
-             extraglobs=None):
-        """
-        Return a list of the DocTests that are defined by the given
-        object's docstring, or by any of its contained objects'
-        docstrings.
-
-        The optional parameter `module` is the module that contains
-        the given object.  If the module is not specified or is None, then
-        the test finder will attempt to automatically determine the
-        correct module.  The object's module is used:
-
-            - As a default namespace, if `globs` is not specified.
-            - To prevent the DocTestFinder from extracting DocTests
-              from objects that are imported from other modules.
-            - To find the name of the file containing the object.
-            - To help find the line number of the object within its
-              file.
-
-        Contained objects whose module does not match `module` are ignored.
-
-        If `module` is False, no attempt to find the module will be made.
-        This is obscure, of use mostly in tests:  if `module` is False, or
-        is None but cannot be found automatically, then all objects are
-        considered to belong to the (non-existent) module, so all contained
-        objects will (recursively) be searched for doctests.
-
-        The globals for each DocTest is formed by combining `globs`
-        and `extraglobs` (bindings in `extraglobs` override bindings
-        in `globs`).  A new copy of the globals dictionary is created
-        for each DocTest.  If `globs` is not specified, then it
-        defaults to the module's `__dict__`, if specified, or {}
-        otherwise.  If `extraglobs` is not specified, then it defaults
-        to {}.
-
-        """
-        # If name was not specified, then extract it from the object.
-        if name is None:
-            name = getattr(obj, '__name__', None)
-            if name is None:
-                raise ValueError("DocTestFinder.find: name must be given "
-                        "when obj.__name__ doesn't exist: %r" %
-                                 (type(obj),))
-
-        # Find the module that contains the given object (if obj is
-        # a module, then module=obj.).  Note: this may fail, in which
-        # case module will be None.
-        if module is False:
-            module = None
-        elif module is None:
-            module = inspect.getmodule(obj)
-
-        # Read the module's source code.  This is used by
-        # DocTestFinder._find_lineno to find the line number for a
-        # given object's docstring.
-        try:
-            file = inspect.getsourcefile(obj) or inspect.getfile(obj)
-            source_lines = linecache.getlines(file)
-            if not source_lines:
-                source_lines = None
-        except TypeError:
-            source_lines = None
-
-        # Initialize globals, and merge in extraglobs.
-        if globs is None:
-            if module is None:
-                globs = {}
-            else:
-                globs = module.__dict__.copy()
-        else:
-            globs = globs.copy()
-        if extraglobs is not None:
-            globs.update(extraglobs)
-
-        # Recursively expore `obj`, extracting DocTests.
-        tests = []
-        self._find(tests, obj, name, module, source_lines, globs, {})
-        return tests
-
-    def _filter(self, obj, prefix, base):
-        """
-        Return true if the given object should not be examined.
-        """
-        return (self._namefilter is not None and
-                self._namefilter(prefix, base))
-
-    def _from_module(self, module, object):
-        """
-        Return true if the given object is defined in the given
-        module.
-        """
-        if module is None:
-            return True
-        elif inspect.isfunction(object):
-            return module.__dict__ is object.func_globals
-        elif inspect.isclass(object):
-            return module.__name__ == object.__module__
-        elif inspect.getmodule(object) is not None:
-            return module is inspect.getmodule(object)
-        elif hasattr(object, '__module__'):
-            return module.__name__ == object.__module__
-        elif isinstance(object, property):
-            return True # [XX] no way not be sure.
-        else:
-            raise ValueError("object must be a class or function")
-
-    def _find(self, tests, obj, name, module, source_lines, globs, seen):
-        """
-        Find tests for the given object and any contained objects, and
-        add them to `tests`.
-        """
-        if self._verbose:
-            print 'Finding tests in %s' % name
-
-        # If we've already processed this object, then ignore it.
-        if id(obj) in seen:
-            return
-        seen[id(obj)] = 1
-
-        # Find a test for this object, and add it to the list of tests.
-        test = self._get_test(obj, name, module, globs, source_lines)
-        if test is not None:
-            tests.append(test)
-
-        # Look for tests in a module's contained objects.
-        if inspect.ismodule(obj) and self._recurse:
-            for valname, val in obj.__dict__.items():
-                # Check if this contained object should be ignored.
-                if self._filter(val, name, valname):
-                    continue
-                valname = '%s.%s' % (name, valname)
-                # Recurse to functions & classes.
-                if ((inspect.isfunction(val) or inspect.isclass(val)) and
-                    self._from_module(module, val)):
-                    self._find(tests, val, valname, module, source_lines,
-                               globs, seen)
-
-        # Look for tests in a module's __test__ dictionary.
-        if inspect.ismodule(obj) and self._recurse:
-            for valname, val in getattr(obj, '__test__', {}).items():
-                if not isinstance(valname, basestring):
-                    raise ValueError("DocTestFinder.find: __test__ keys "
-                                     "must be strings: %r" %
-                                     (type(valname),))
-                if not (inspect.isfunction(val) or inspect.isclass(val) or
-                        inspect.ismethod(val) or inspect.ismodule(val) or
-                        isinstance(val, basestring)):
-                    raise ValueError("DocTestFinder.find: __test__ values "
-                                     "must be strings, functions, methods, "
-                                     "classes, or modules: %r" %
-                                     (type(val),))
-                valname = '%s.__test__.%s' % (name, valname)
-                self._find(tests, val, valname, module, source_lines,
-                           globs, seen)
-
-        # Look for tests in a class's contained objects.
-        if inspect.isclass(obj) and self._recurse:
-            for valname, val in obj.__dict__.items():
-                # Check if this contained object should be ignored.
-                if self._filter(val, name, valname):
-                    continue
-                # Special handling for staticmethod/classmethod.
-                if isinstance(val, staticmethod):
-                    val = getattr(obj, valname)
-                if isinstance(val, classmethod):
-                    val = getattr(obj, valname).im_func
-
-                # Recurse to methods, properties, and nested classes.
-                if ((inspect.isfunction(val) or inspect.isclass(val) or
-                      isinstance(val, property)) and
-                      self._from_module(module, val)):
-                    valname = '%s.%s' % (name, valname)
-                    self._find(tests, val, valname, module, source_lines,
-                               globs, seen)
-
-    def _get_test(self, obj, name, module, globs, source_lines):
-        """
-        Return a DocTest for the given object, if it defines a docstring;
-        otherwise, return None.
-        """
-        # Extract the object's docstring.  If it doesn't have one,
-        # then return None (no test for this object).
-        if isinstance(obj, basestring):
-            docstring = obj
-        else:
-            try:
-                if obj.__doc__ is None:
-                    docstring = ''
-                else:
-                    docstring = obj.__doc__
-                    if not isinstance(docstring, basestring):
-                        docstring = str(docstring)
-            except (TypeError, AttributeError):
-                docstring = ''
-
-        # Find the docstring's location in the file.
-        lineno = self._find_lineno(obj, source_lines)
-
-        # Don't bother if the docstring is empty.
-        if self._exclude_empty and not docstring:
-            return None
-
-        # Return a DocTest for this object.
-        if module is None:
-            filename = None
-        else:
-            filename = getattr(module, '__file__', module.__name__)
-            if filename[-4:] in (".pyc", ".pyo"):
-                filename = filename[:-1]
-        return self._parser.get_doctest(docstring, globs, name,
-                                        filename, lineno)
-
-    def _find_lineno(self, obj, source_lines):
-        """
-        Return a line number of the given object's docstring.  Note:
-        this method assumes that the object has a docstring.
-        """
-        lineno = None
-
-        # Find the line number for modules.
-        if inspect.ismodule(obj):
-            lineno = 0
-
-        # Find the line number for classes.
-        # Note: this could be fooled if a class is defined multiple
-        # times in a single file.
-        if inspect.isclass(obj):
-            if source_lines is None:
-                return None
-            pat = re.compile(r'^\s*class\s*%s\b' %
-                             getattr(obj, '__name__', '-'))
-            for i, line in enumerate(source_lines):
-                if pat.match(line):
-                    lineno = i
-                    break
-
-        # Find the line number for functions & methods.
-        if inspect.ismethod(obj): obj = obj.im_func
-        if inspect.isfunction(obj): obj = obj.func_code
-        if inspect.istraceback(obj): obj = obj.tb_frame
-        if inspect.isframe(obj): obj = obj.f_code
-        if inspect.iscode(obj):
-            lineno = getattr(obj, 'co_firstlineno', None)-1
-
-        # Find the line number where the docstring starts.  Assume
-        # that it's the first line that begins with a quote mark.
-        # Note: this could be fooled by a multiline function
-        # signature, where a continuation line begins with a quote
-        # mark.
-        if lineno is not None:
-            if source_lines is None:
-                return lineno+1
-            pat = re.compile('(^|.*:)\s*\w*("|\')')
-            for lineno in range(lineno, len(source_lines)):
-                if pat.match(source_lines[lineno]):
-                    return lineno
-
-        # We couldn't find the line number.
-        return None
-
-######################################################################
-## 5. DocTest Runner
-######################################################################
-
-class DocTestRunner:
-    """
-    A class used to run DocTest test cases, and accumulate statistics.
-    The `run` method is used to process a single DocTest case.  It
-    returns a tuple `(f, t)`, where `t` is the number of test cases
-    tried, and `f` is the number of test cases that failed.
-
-        >>> tests = DocTestFinder().find(_TestClass)
-        >>> runner = DocTestRunner(verbose=False)
-        >>> for test in tests:
-        ...     print runner.run(test)
-        (0, 2)
-        (0, 1)
-        (0, 2)
-        (0, 2)
-
-    The `summarize` method prints a summary of all the test cases that
-    have been run by the runner, and returns an aggregated `(f, t)`
-    tuple:
-
-        >>> runner.summarize(verbose=1)
-        4 items passed all tests:
-           2 tests in _TestClass
-           2 tests in _TestClass.__init__
-           2 tests in _TestClass.get
-           1 tests in _TestClass.square
-        7 tests in 4 items.
-        7 passed and 0 failed.
-        Test passed.
-        (0, 7)
-
-    The aggregated number of tried examples and failed examples is
-    also available via the `tries` and `failures` attributes:
-
-        >>> runner.tries
-        7
-        >>> runner.failures
-        0
-
-    The comparison between expected outputs and actual outputs is done
-    by an `OutputChecker`.  This comparison may be customized with a
-    number of option flags; see the documentation for `testmod` for
-    more information.  If the option flags are insufficient, then the
-    comparison may also be customized by passing a subclass of
-    `OutputChecker` to the constructor.
-
-    The test runner's display output can be controlled in two ways.
-    First, an output function (`out) can be passed to
-    `TestRunner.run`; this function will be called with strings that
-    should be displayed.  It defaults to `sys.stdout.write`.  If
-    capturing the output is not sufficient, then the display output
-    can be also customized by subclassing DocTestRunner, and
-    overriding the methods `report_start`, `report_success`,
-    `report_unexpected_exception`, and `report_failure`.
-    """
-    # This divider string is used to separate failure messages, and to
-    # separate sections of the summary.
-    DIVIDER = "*" * 70
-
-    def __init__(self, checker=None, verbose=None, optionflags=0):
-        """
-        Create a new test runner.
-
-        Optional keyword arg `checker` is the `OutputChecker` that
-        should be used to compare the expected outputs and actual
-        outputs of doctest examples.
-
-        Optional keyword arg 'verbose' prints lots of stuff if true,
-        only failures if false; by default, it's true iff '-v' is in
-        sys.argv.
-
-        Optional argument `optionflags` can be used to control how the
-        test runner compares expected output to actual output, and how
-        it displays failures.  See the documentation for `testmod` for
-        more information.
-        """
-        self._checker = checker or OutputChecker()
-        if verbose is None:
-            verbose = '-v' in sys.argv
-        self._verbose = verbose
-        self.optionflags = optionflags
-        self.original_optionflags = optionflags
-
-        # Keep track of the examples we've run.
-        self.tries = 0
-        self.failures = 0
-        self._name2ft = {}
-
-        # Create a fake output target for capturing doctest output.
-        self._fakeout = _SpoofOut()
-
-    #/////////////////////////////////////////////////////////////////
-    # Reporting methods
-    #/////////////////////////////////////////////////////////////////
-
-    def report_start(self, out, test, example):
-        """
-        Report that the test runner is about to process the given
-        example.  (Only displays a message if verbose=True)
-        """
-        if self._verbose:
-            if example.want:
-                out('Trying:\n' + _indent(example.source) +
-                    'Expecting:\n' + _indent(example.want))
-            else:
-                out('Trying:\n' + _indent(example.source) +
-                    'Expecting nothing\n')
-
-    def report_success(self, out, test, example, got):
-        """
-        Report that the given example ran successfully.  (Only
-        displays a message if verbose=True)
-        """
-        if self._verbose:
-            out("ok\n")
-
-    def report_failure(self, out, test, example, got):
-        """
-        Report that the given example failed.
-        """
-        out(self._failure_header(test, example) +
-            self._checker.output_difference(example, got, self.optionflags))
-
-    def report_unexpected_exception(self, out, test, example, exc_info):
-        """
-        Report that the given example raised an unexpected exception.
-        """
-        out(self._failure_header(test, example) +
-            'Exception raised:\n' + _indent(_exception_traceback(exc_info)))
-
-    def _failure_header(self, test, example):
-        out = [self.DIVIDER]
-        if test.filename:
-            if test.lineno is not None and example.lineno is not None:
-                lineno = test.lineno + example.lineno + 1
-            else:
-                lineno = '?'
-            out.append('File "%s", line %s, in %s' %
-                       (test.filename, lineno, test.name))
-        else:
-            out.append('Line %s, in %s' % (example.lineno+1, test.name))
-        out.append('Failed example:')
-        source = example.source
-        out.append(_indent(source))
-        return '\n'.join(out)
-
-    #/////////////////////////////////////////////////////////////////
-    # DocTest Running
-    #/////////////////////////////////////////////////////////////////
-
-    def __run(self, test, compileflags, out):
-        """
-        Run the examples in `test`.  Write the outcome of each example
-        with one of the `DocTestRunner.report_*` methods, using the
-        writer function `out`.  `compileflags` is the set of compiler
-        flags that should be used to execute examples.  Return a tuple
-        `(f, t)`, where `t` is the number of examples tried, and `f`
-        is the number of examples that failed.  The examples are run
-        in the namespace `test.globs`.
-        """
-        # Keep track of the number of failures and tries.
-        failures = tries = 0
-
-        # Save the option flags (since option directives can be used
-        # to modify them).
-        original_optionflags = self.optionflags
-
-        SUCCESS, FAILURE, BOOM = range(3) # `outcome` state
-
-        check = self._checker.check_output
-
-        # Process each example.
-        for examplenum, example in enumerate(test.examples):
-
-            # If REPORT_ONLY_FIRST_FAILURE is set, then supress
-            # reporting after the first failure.
-            quiet = (self.optionflags & REPORT_ONLY_FIRST_FAILURE and
-                     failures > 0)
-
-            # Merge in the example's options.
-            self.optionflags = original_optionflags
-            if example.options:
-                for (optionflag, val) in example.options.items():
-                    if val:
-                        self.optionflags |= optionflag
-                    else:
-                        self.optionflags &= ~optionflag
-
-            # Record that we started this example.
-            tries += 1
-            if not quiet:
-                self.report_start(out, test, example)
-
-            # Use a special filename for compile(), so we can retrieve
-            # the source code during interactive debugging (see
-            # __patched_linecache_getlines).
-            filename = '' % (test.name, examplenum)
-
-            # Run the example in the given context (globs), and record
-            # any exception that gets raised.  (But don't intercept
-            # keyboard interrupts.)
-            try:
-                # Don't blink!  This is where the user's code gets run.
-                exec compile(example.source, filename, "single",
-                             compileflags, 1) in test.globs
-                self.debugger.set_continue() # ==== Example Finished ====
-                exception = None
-            except KeyboardInterrupt:
-                raise
-            except:
-                exception = sys.exc_info()
-                self.debugger.set_continue() # ==== Example Finished ====
-
-            got = self._fakeout.getvalue()  # the actual output
-            self._fakeout.truncate(0)
-            outcome = FAILURE   # guilty until proved innocent or insane
-
-            # If the example executed without raising any exceptions,
-            # verify its output.
-            if exception is None:
-                if check(example.want, got, self.optionflags):
-                    outcome = SUCCESS
-
-            # The example raised an exception:  check if it was expected.
-            else:
-                exc_info = sys.exc_info()
-                exc_msg = traceback.format_exception_only(*exc_info[:2])[-1]
-                if not quiet:
-                    got += _exception_traceback(exc_info)
-
-                # If `example.exc_msg` is None, then we weren't expecting
-                # an exception.
-                if example.exc_msg is None:
-                    outcome = BOOM
-
-                # We expected an exception:  see whether it matches.
-                elif check(example.exc_msg, exc_msg, self.optionflags):
-                    outcome = SUCCESS
-
-                # Another chance if they didn't care about the detail.
-                elif self.optionflags & IGNORE_EXCEPTION_DETAIL:
-                    m1 = re.match(r'[^:]*:', example.exc_msg)
-                    m2 = re.match(r'[^:]*:', exc_msg)
-                    if m1 and m2 and check(m1.group(0), m2.group(0),
-                                           self.optionflags):
-                        outcome = SUCCESS
-
-            # Report the outcome.
-            if outcome is SUCCESS:
-                if not quiet:
-                    self.report_success(out, test, example, got)
-            elif outcome is FAILURE:
-                if not quiet:
-                    self.report_failure(out, test, example, got)
-                failures += 1
-            elif outcome is BOOM:
-                if not quiet:
-                    self.report_unexpected_exception(out, test, example,
-                                                     exc_info)
-                failures += 1
-            else:
-                assert False, ("unknown outcome", outcome)
-
-        # Restore the option flags (in case they were modified)
-        self.optionflags = original_optionflags
-
-        # Record and return the number of failures and tries.
-        self.__record_outcome(test, failures, tries)
-        return failures, tries
-
-    def __record_outcome(self, test, f, t):
-        """
-        Record the fact that the given DocTest (`test`) generated `f`
-        failures out of `t` tried examples.
-        """
-        f2, t2 = self._name2ft.get(test.name, (0,0))
-        self._name2ft[test.name] = (f+f2, t+t2)
-        self.failures += f
-        self.tries += t
-
-    __LINECACHE_FILENAME_RE = re.compile(r'[\w\.]+)'
-                                         r'\[(?P\d+)\]>$')
-    def __patched_linecache_getlines(self, filename, module_globals=None):
-        m = self.__LINECACHE_FILENAME_RE.match(filename)
-        if m and m.group('name') == self.test.name:
-            example = self.test.examples[int(m.group('examplenum'))]
-            return example.source.splitlines(True)
-        elif self.save_linecache_getlines.func_code.co_argcount>1:
-            return self.save_linecache_getlines(filename, module_globals)
-        else:
-            return self.save_linecache_getlines(filename)
-
-    def run(self, test, compileflags=None, out=None, clear_globs=True):
-        """
-        Run the examples in `test`, and display the results using the
-        writer function `out`.
-
-        The examples are run in the namespace `test.globs`.  If
-        `clear_globs` is true (the default), then this namespace will
-        be cleared after the test runs, to help with garbage
-        collection.  If you would like to examine the namespace after
-        the test completes, then use `clear_globs=False`.
-
-        `compileflags` gives the set of flags that should be used by
-        the Python compiler when running the examples.  If not
-        specified, then it will default to the set of future-import
-        flags that apply to `globs`.
-
-        The output of each example is checked using
-        `DocTestRunner.check_output`, and the results are formatted by
-        the `DocTestRunner.report_*` methods.
-        """
-        self.test = test
-
-        if compileflags is None:
-            compileflags = _extract_future_flags(test.globs)
-
-        save_stdout = sys.stdout
-        if out is None:
-            out = save_stdout.write
-        sys.stdout = self._fakeout
-
-        # Patch pdb.set_trace to restore sys.stdout during interactive
-        # debugging (so it's not still redirected to self._fakeout).
-        # Note that the interactive output will go to *our*
-        # save_stdout, even if that's not the real sys.stdout; this
-        # allows us to write test cases for the set_trace behavior.
-        save_set_trace = pdb.set_trace
-        self.debugger = _OutputRedirectingPdb(save_stdout)
-        self.debugger.reset()
-        pdb.set_trace = self.debugger.set_trace
-
-        # Patch linecache.getlines, so we can see the example's source
-        # when we're inside the debugger.
-        self.save_linecache_getlines = linecache.getlines
-        linecache.getlines = self.__patched_linecache_getlines
-
-        try:
-            return self.__run(test, compileflags, out)
-        finally:
-            sys.stdout = save_stdout
-            pdb.set_trace = save_set_trace
-            linecache.getlines = self.save_linecache_getlines
-            if clear_globs:
-                test.globs.clear()
-
-    #/////////////////////////////////////////////////////////////////
-    # Summarization
-    #/////////////////////////////////////////////////////////////////
-    def summarize(self, verbose=None):
-        """
-        Print a summary of all the test cases that have been run by
-        this DocTestRunner, and return a tuple `(f, t)`, where `f` is
-        the total number of failed examples, and `t` is the total
-        number of tried examples.
-
-        The optional `verbose` argument controls how detailed the
-        summary is.  If the verbosity is not specified, then the
-        DocTestRunner's verbosity is used.
-        """
-        if verbose is None:
-            verbose = self._verbose
-        notests = []
-        passed = []
-        failed = []
-        totalt = totalf = 0
-        for x in self._name2ft.items():
-            name, (f, t) = x
-            assert f <= t
-            totalt += t
-            totalf += f
-            if t == 0:
-                notests.append(name)
-            elif f == 0:
-                passed.append( (name, t) )
-            else:
-                failed.append(x)
-        if verbose:
-            if notests:
-                print len(notests), "items had no tests:"
-                notests.sort()
-                for thing in notests:
-                    print "   ", thing
-            if passed:
-                print len(passed), "items passed all tests:"
-                passed.sort()
-                for thing, count in passed:
-                    print " %3d tests in %s" % (count, thing)
-        if failed:
-            print self.DIVIDER
-            print len(failed), "items had failures:"
-            failed.sort()
-            for thing, (f, t) in failed:
-                print " %3d of %3d in %s" % (f, t, thing)
-        if verbose:
-            print totalt, "tests in", len(self._name2ft), "items."
-            print totalt - totalf, "passed and", totalf, "failed."
-        if totalf:
-            print "***Test Failed***", totalf, "failures."
-        elif verbose:
-            print "Test passed."
-        return totalf, totalt
-
-    #/////////////////////////////////////////////////////////////////
-    # Backward compatibility cruft to maintain doctest.master.
-    #/////////////////////////////////////////////////////////////////
-    def merge(self, other):
-        d = self._name2ft
-        for name, (f, t) in other._name2ft.items():
-            if name in d:
-                print "*** DocTestRunner.merge: '" + name + "' in both" \
-                    " testers; summing outcomes."
-                f2, t2 = d[name]
-                f = f + f2
-                t = t + t2
-            d[name] = f, t
-
-class OutputChecker:
-    """
-    A class used to check the whether the actual output from a doctest
-    example matches the expected output.  `OutputChecker` defines two
-    methods: `check_output`, which compares a given pair of outputs,
-    and returns true if they match; and `output_difference`, which
-    returns a string describing the differences between two outputs.
-    """
-    def check_output(self, want, got, optionflags):
-        """
-        Return True iff the actual output from an example (`got`)
-        matches the expected output (`want`).  These strings are
-        always considered to match if they are identical; but
-        depending on what option flags the test runner is using,
-        several non-exact match types are also possible.  See the
-        documentation for `TestRunner` for more information about
-        option flags.
-        """
-        # Handle the common case first, for efficiency:
-        # if they're string-identical, always return true.
-        if got == want:
-            return True
-
-        # The values True and False replaced 1 and 0 as the return
-        # value for boolean comparisons in Python 2.3.
-        if not (optionflags & DONT_ACCEPT_TRUE_FOR_1):
-            if (got,want) == ("True\n", "1\n"):
-                return True
-            if (got,want) == ("False\n", "0\n"):
-                return True
-
-        #  can be used as a special sequence to signify a
-        # blank line, unless the DONT_ACCEPT_BLANKLINE flag is used.
-        if not (optionflags & DONT_ACCEPT_BLANKLINE):
-            # Replace  in want with a blank line.
-            want = re.sub('(?m)^%s\s*?$' % re.escape(BLANKLINE_MARKER),
-                          '', want)
-            # If a line in got contains only spaces, then remove the
-            # spaces.
-            got = re.sub('(?m)^\s*?$', '', got)
-            if got == want:
-                return True
-
-        # This flag causes doctest to ignore any differences in the
-        # contents of whitespace strings.  Note that this can be used
-        # in conjunction with the ELLIPSIS flag.
-        if optionflags & NORMALIZE_WHITESPACE:
-            got = ' '.join(got.split())
-            want = ' '.join(want.split())
-            if got == want:
-                return True
-
-        # The ELLIPSIS flag says to let the sequence "..." in `want`
-        # match any substring in `got`.
-        if optionflags & ELLIPSIS:
-            if _ellipsis_match(want, got):
-                return True
-
-        # We didn't find any match; return false.
-        return False
-
-    # Should we do a fancy diff?
-    def _do_a_fancy_diff(self, want, got, optionflags):
-        # Not unless they asked for a fancy diff.
-        if not optionflags & (REPORT_UDIFF |
-                              REPORT_CDIFF |
-                              REPORT_NDIFF):
-            return False
-
-        # If expected output uses ellipsis, a meaningful fancy diff is
-        # too hard ... or maybe not.  In two real-life failures Tim saw,
-        # a diff was a major help anyway, so this is commented out.
-        # [todo] _ellipsis_match() knows which pieces do and don't match,
-        # and could be the basis for a kick-ass diff in this case.
-        ##if optionflags & ELLIPSIS and ELLIPSIS_MARKER in want:
-        ##    return False
-
-        # ndiff does intraline difference marking, so can be useful even
-        # for 1-line differences.
-        if optionflags & REPORT_NDIFF:
-            return True
-
-        # The other diff types need at least a few lines to be helpful.
-        return want.count('\n') > 2 and got.count('\n') > 2
-
-    def output_difference(self, example, got, optionflags):
-        """
-        Return a string describing the differences between the
-        expected output for a given example (`example`) and the actual
-        output (`got`).  `optionflags` is the set of option flags used
-        to compare `want` and `got`.
-        """
-        want = example.want
-        # If s are being used, then replace blank lines
-        # with  in the actual output string.
-        if not (optionflags & DONT_ACCEPT_BLANKLINE):
-            got = re.sub('(?m)^[ ]*(?=\n)', BLANKLINE_MARKER, got)
-
-        # Check if we should use diff.
-        if self._do_a_fancy_diff(want, got, optionflags):
-            # Split want & got into lines.
-            want_lines = want.splitlines(True)  # True == keep line ends
-            got_lines = got.splitlines(True)
-            # Use difflib to find their differences.
-            if optionflags & REPORT_UDIFF:
-                diff = difflib.unified_diff(want_lines, got_lines, n=2)
-                diff = list(diff)[2:] # strip the diff header
-                kind = 'unified diff with -expected +actual'
-            elif optionflags & REPORT_CDIFF:
-                diff = difflib.context_diff(want_lines, got_lines, n=2)
-                diff = list(diff)[2:] # strip the diff header
-                kind = 'context diff with expected followed by actual'
-            elif optionflags & REPORT_NDIFF:
-                engine = difflib.Differ(charjunk=difflib.IS_CHARACTER_JUNK)
-                diff = list(engine.compare(want_lines, got_lines))
-                kind = 'ndiff with -expected +actual'
-            else:
-                assert 0, 'Bad diff option'
-            # Remove trailing whitespace on diff output.
-            diff = [line.rstrip() + '\n' for line in diff]
-            return 'Differences (%s):\n' % kind + _indent(''.join(diff))
-
-        # If we're not using diff, then simply list the expected
-        # output followed by the actual output.
-        if want and got:
-            return 'Expected:\n%sGot:\n%s' % (_indent(want), _indent(got))
-        elif want:
-            return 'Expected:\n%sGot nothing\n' % _indent(want)
-        elif got:
-            return 'Expected nothing\nGot:\n%s' % _indent(got)
-        else:
-            return 'Expected nothing\nGot nothing\n'
-
-class DocTestFailure(Exception):
-    """A DocTest example has failed in debugging mode.
-
-    The exception instance has variables:
-
-    - test: the DocTest object being run
-
-    - excample: the Example object that failed
-
-    - got: the actual output
-    """
-    def __init__(self, test, example, got):
-        self.test = test
-        self.example = example
-        self.got = got
-
-    def __str__(self):
-        return str(self.test)
-
-class UnexpectedException(Exception):
-    """A DocTest example has encountered an unexpected exception
-
-    The exception instance has variables:
-
-    - test: the DocTest object being run
-
-    - excample: the Example object that failed
-
-    - exc_info: the exception info
-    """
-    def __init__(self, test, example, exc_info):
-        self.test = test
-        self.example = example
-        self.exc_info = exc_info
-
-    def __str__(self):
-        return str(self.test)
-
-class DebugRunner(DocTestRunner):
-    r"""Run doc tests but raise an exception as soon as there is a failure.
-
-       If an unexpected exception occurs, an UnexpectedException is raised.
-       It contains the test, the example, and the original exception:
-
-         >>> runner = DebugRunner(verbose=False)
-         >>> test = DocTestParser().get_doctest('>>> raise KeyError\n42',
-         ...                                    {}, 'foo', 'foo.py', 0)
-         >>> try:
-         ...     runner.run(test)
-         ... except UnexpectedException, failure:
-         ...     pass
-
-         >>> failure.test is test
-         True
-
-         >>> failure.example.want
-         '42\n'
-
-         >>> exc_info = failure.exc_info
-         >>> raise exc_info[0], exc_info[1], exc_info[2]
-         Traceback (most recent call last):
-         ...
-         KeyError
-
-       We wrap the original exception to give the calling application
-       access to the test and example information.
-
-       If the output doesn't match, then a DocTestFailure is raised:
-
-         >>> test = DocTestParser().get_doctest('''
-         ...      >>> x = 1
-         ...      >>> x
-         ...      2
-         ...      ''', {}, 'foo', 'foo.py', 0)
-
-         >>> try:
-         ...    runner.run(test)
-         ... except DocTestFailure, failure:
-         ...    pass
-
-       DocTestFailure objects provide access to the test:
-
-         >>> failure.test is test
-         True
-
-       As well as to the example:
-
-         >>> failure.example.want
-         '2\n'
-
-       and the actual output:
-
-         >>> failure.got
-         '1\n'
-
-       If a failure or error occurs, the globals are left intact:
-
-         >>> del test.globs['__builtins__']
-         >>> test.globs
-         {'x': 1}
-
-         >>> test = DocTestParser().get_doctest('''
-         ...      >>> x = 2
-         ...      >>> raise KeyError
-         ...      ''', {}, 'foo', 'foo.py', 0)
-
-         >>> runner.run(test)
-         Traceback (most recent call last):
-         ...
-         UnexpectedException: 
-
-         >>> del test.globs['__builtins__']
-         >>> test.globs
-         {'x': 2}
-
-       But the globals are cleared if there is no error:
-
-         >>> test = DocTestParser().get_doctest('''
-         ...      >>> x = 2
-         ...      ''', {}, 'foo', 'foo.py', 0)
-
-         >>> runner.run(test)
-         (0, 1)
-
-         >>> test.globs
-         {}
-
-       """
-
-    def run(self, test, compileflags=None, out=None, clear_globs=True):
-        r = DocTestRunner.run(self, test, compileflags, out, False)
-        if clear_globs:
-            test.globs.clear()
-        return r
-
-    def report_unexpected_exception(self, out, test, example, exc_info):
-        raise UnexpectedException(test, example, exc_info)
-
-    def report_failure(self, out, test, example, got):
-        raise DocTestFailure(test, example, got)
-
-######################################################################
-## 6. Test Functions
-######################################################################
-# These should be backwards compatible.
-
-# For backward compatibility, a global instance of a DocTestRunner
-# class, updated by testmod.
-master = None
-
-def testmod(m=None, name=None, globs=None, verbose=None, isprivate=None,
-            report=True, optionflags=0, extraglobs=None,
-            raise_on_error=False, exclude_empty=False):
-    """m=None, name=None, globs=None, verbose=None, isprivate=None,
-       report=True, optionflags=0, extraglobs=None, raise_on_error=False,
-       exclude_empty=False
-
-    Test examples in docstrings in functions and classes reachable
-    from module m (or the current module if m is not supplied), starting
-    with m.__doc__.  Unless isprivate is specified, private names
-    are not skipped.
-
-    Also test examples reachable from dict m.__test__ if it exists and is
-    not None.  m.__test__ maps names to functions, classes and strings;
-    function and class docstrings are tested even if the name is private;
-    strings are tested directly, as if they were docstrings.
-
-    Return (#failures, #tests).
-
-    See doctest.__doc__ for an overview.
-
-    Optional keyword arg "name" gives the name of the module; by default
-    use m.__name__.
-
-    Optional keyword arg "globs" gives a dict to be used as the globals
-    when executing examples; by default, use m.__dict__.  A copy of this
-    dict is actually used for each docstring, so that each docstring's
-    examples start with a clean slate.
-
-    Optional keyword arg "extraglobs" gives a dictionary that should be
-    merged into the globals that are used to execute examples.  By
-    default, no extra globals are used.  This is new in 2.4.
-
-    Optional keyword arg "verbose" prints lots of stuff if true, prints
-    only failures if false; by default, it's true iff "-v" is in sys.argv.
-
-    Optional keyword arg "report" prints a summary at the end when true,
-    else prints nothing at the end.  In verbose mode, the summary is
-    detailed, else very brief (in fact, empty if all tests passed).
-
-    Optional keyword arg "optionflags" or's together module constants,
-    and defaults to 0.  This is new in 2.3.  Possible values (see the
-    docs for details):
-
-        DONT_ACCEPT_TRUE_FOR_1
-        DONT_ACCEPT_BLANKLINE
-        NORMALIZE_WHITESPACE
-        ELLIPSIS
-        IGNORE_EXCEPTION_DETAIL
-        REPORT_UDIFF
-        REPORT_CDIFF
-        REPORT_NDIFF
-        REPORT_ONLY_FIRST_FAILURE
-
-    Optional keyword arg "raise_on_error" raises an exception on the
-    first unexpected exception or failure. This allows failures to be
-    post-mortem debugged.
-
-    Deprecated in Python 2.4:
-    Optional keyword arg "isprivate" specifies a function used to
-    determine whether a name is private.  The default function is
-    treat all functions as public.  Optionally, "isprivate" can be
-    set to doctest.is_private to skip over functions marked as private
-    using the underscore naming convention; see its docs for details.
-
-    Advanced tomfoolery:  testmod runs methods of a local instance of
-    class doctest.Tester, then merges the results into (or creates)
-    global Tester instance doctest.master.  Methods of doctest.master
-    can be called directly too, if you want to do something unusual.
-    Passing report=0 to testmod is especially useful then, to delay
-    displaying a summary.  Invoke doctest.master.summarize(verbose)
-    when you're done fiddling.
-    """
-    global master
-
-    if isprivate is not None:
-        warnings.warn("the isprivate argument is deprecated; "
-                      "examine DocTestFinder.find() lists instead",
-                      DeprecationWarning)
-
-    # If no module was given, then use __main__.
-    if m is None:
-        # DWA - m will still be None if this wasn't invoked from the command
-        # line, in which case the following TypeError is about as good an error
-        # as we should expect
-        m = sys.modules.get('__main__')
-
-    # Check that we were actually given a module.
-    if not inspect.ismodule(m):
-        raise TypeError("testmod: module required; %r" % (m,))
-
-    # If no name was given, then use the module's name.
-    if name is None:
-        name = m.__name__
-
-    # Find, parse, and run all tests in the given module.
-    finder = DocTestFinder(_namefilter=isprivate, exclude_empty=exclude_empty)
-
-    if raise_on_error:
-        runner = DebugRunner(verbose=verbose, optionflags=optionflags)
-    else:
-        runner = DocTestRunner(verbose=verbose, optionflags=optionflags)
-
-    for test in finder.find(m, name, globs=globs, extraglobs=extraglobs):
-        runner.run(test)
-
-    if report:
-        runner.summarize()
-
-    if master is None:
-        master = runner
-    else:
-        master.merge(runner)
-
-    return runner.failures, runner.tries
-
-def testfile(filename, module_relative=True, name=None, package=None,
-             globs=None, verbose=None, report=True, optionflags=0,
-             extraglobs=None, raise_on_error=False, parser=DocTestParser()):
-    """
-    Test examples in the given file.  Return (#failures, #tests).
-
-    Optional keyword arg "module_relative" specifies how filenames
-    should be interpreted:
-
-      - If "module_relative" is True (the default), then "filename"
-         specifies a module-relative path.  By default, this path is
-         relative to the calling module's directory; but if the
-         "package" argument is specified, then it is relative to that
-         package.  To ensure os-independence, "filename" should use
-         "/" characters to separate path segments, and should not
-         be an absolute path (i.e., it may not begin with "/").
-
-      - If "module_relative" is False, then "filename" specifies an
-        os-specific path.  The path may be absolute or relative (to
-        the current working directory).
-
-    Optional keyword arg "name" gives the name of the test; by default
-    use the file's basename.
-
-    Optional keyword argument "package" is a Python package or the
-    name of a Python package whose directory should be used as the
-    base directory for a module relative filename.  If no package is
-    specified, then the calling module's directory is used as the base
-    directory for module relative filenames.  It is an error to
-    specify "package" if "module_relative" is False.
-
-    Optional keyword arg "globs" gives a dict to be used as the globals
-    when executing examples; by default, use {}.  A copy of this dict
-    is actually used for each docstring, so that each docstring's
-    examples start with a clean slate.
-
-    Optional keyword arg "extraglobs" gives a dictionary that should be
-    merged into the globals that are used to execute examples.  By
-    default, no extra globals are used.
-
-    Optional keyword arg "verbose" prints lots of stuff if true, prints
-    only failures if false; by default, it's true iff "-v" is in sys.argv.
-
-    Optional keyword arg "report" prints a summary at the end when true,
-    else prints nothing at the end.  In verbose mode, the summary is
-    detailed, else very brief (in fact, empty if all tests passed).
-
-    Optional keyword arg "optionflags" or's together module constants,
-    and defaults to 0.  Possible values (see the docs for details):
-
-        DONT_ACCEPT_TRUE_FOR_1
-        DONT_ACCEPT_BLANKLINE
-        NORMALIZE_WHITESPACE
-        ELLIPSIS
-        IGNORE_EXCEPTION_DETAIL
-        REPORT_UDIFF
-        REPORT_CDIFF
-        REPORT_NDIFF
-        REPORT_ONLY_FIRST_FAILURE
-
-    Optional keyword arg "raise_on_error" raises an exception on the
-    first unexpected exception or failure. This allows failures to be
-    post-mortem debugged.
-
-    Optional keyword arg "parser" specifies a DocTestParser (or
-    subclass) that should be used to extract tests from the files.
-
-    Advanced tomfoolery:  testmod runs methods of a local instance of
-    class doctest.Tester, then merges the results into (or creates)
-    global Tester instance doctest.master.  Methods of doctest.master
-    can be called directly too, if you want to do something unusual.
-    Passing report=0 to testmod is especially useful then, to delay
-    displaying a summary.  Invoke doctest.master.summarize(verbose)
-    when you're done fiddling.
-    """
-    global master
-
-    if package and not module_relative:
-        raise ValueError("Package may only be specified for module-"
-                         "relative paths.")
-
-    # Relativize the path
-    if module_relative:
-        package = _normalize_module(package)
-        filename = _module_relative_path(package, filename)
-
-    # If no name was given, then use the file's name.
-    if name is None:
-        name = os.path.basename(filename)
-
-    # Assemble the globals.
-    if globs is None:
-        globs = {}
-    else:
-        globs = globs.copy()
-    if extraglobs is not None:
-        globs.update(extraglobs)
-
-    if raise_on_error:
-        runner = DebugRunner(verbose=verbose, optionflags=optionflags)
-    else:
-        runner = DocTestRunner(verbose=verbose, optionflags=optionflags)
-
-    # Read the file, convert it to a test, and run it.
-    s = open(filename).read()
-    test = parser.get_doctest(s, globs, name, filename, 0)
-    runner.run(test)
-
-    if report:
-        runner.summarize()
-
-    if master is None:
-        master = runner
-    else:
-        master.merge(runner)
-
-    return runner.failures, runner.tries
-
-def run_docstring_examples(f, globs, verbose=False, name="NoName",
-                           compileflags=None, optionflags=0):
-    """
-    Test examples in the given object's docstring (`f`), using `globs`
-    as globals.  Optional argument `name` is used in failure messages.
-    If the optional argument `verbose` is true, then generate output
-    even if there are no failures.
-
-    `compileflags` gives the set of flags that should be used by the
-    Python compiler when running the examples.  If not specified, then
-    it will default to the set of future-import flags that apply to
-    `globs`.
-
-    Optional keyword arg `optionflags` specifies options for the
-    testing and output.  See the documentation for `testmod` for more
-    information.
-    """
-    # Find, parse, and run all tests in the given module.
-    finder = DocTestFinder(verbose=verbose, recurse=False)
-    runner = DocTestRunner(verbose=verbose, optionflags=optionflags)
-    for test in finder.find(f, name, globs=globs):
-        runner.run(test, compileflags=compileflags)
-
-######################################################################
-## 7. Tester
-######################################################################
-# This is provided only for backwards compatibility.  It's not
-# actually used in any way.
-
-class Tester:
-    def __init__(self, mod=None, globs=None, verbose=None,
-                 isprivate=None, optionflags=0):
-
-        warnings.warn("class Tester is deprecated; "
-                      "use class doctest.DocTestRunner instead",
-                      DeprecationWarning, stacklevel=2)
-        if mod is None and globs is None:
-            raise TypeError("Tester.__init__: must specify mod or globs")
-        if mod is not None and not inspect.ismodule(mod):
-            raise TypeError("Tester.__init__: mod must be a module; %r" %
-                            (mod,))
-        if globs is None:
-            globs = mod.__dict__
-        self.globs = globs
-
-        self.verbose = verbose
-        self.isprivate = isprivate
-        self.optionflags = optionflags
-        self.testfinder = DocTestFinder(_namefilter=isprivate)
-        self.testrunner = DocTestRunner(verbose=verbose,
-                                        optionflags=optionflags)
-
-    def runstring(self, s, name):
-        test = DocTestParser().get_doctest(s, self.globs, name, None, None)
-        if self.verbose:
-            print "Running string", name
-        (f,t) = self.testrunner.run(test)
-        if self.verbose:
-            print f, "of", t, "examples failed in string", name
-        return (f,t)
-
-    def rundoc(self, object, name=None, module=None):
-        f = t = 0
-        tests = self.testfinder.find(object, name, module=module,
-                                     globs=self.globs)
-        for test in tests:
-            (f2, t2) = self.testrunner.run(test)
-            (f,t) = (f+f2, t+t2)
-        return (f,t)
-
-    def rundict(self, d, name, module=None):
-        import new
-        m = new.module(name)
-        m.__dict__.update(d)
-        if module is None:
-            module = False
-        return self.rundoc(m, name, module)
-
-    def run__test__(self, d, name):
-        import new
-        m = new.module(name)
-        m.__test__ = d
-        return self.rundoc(m, name)
-
-    def summarize(self, verbose=None):
-        return self.testrunner.summarize(verbose)
-
-    def merge(self, other):
-        self.testrunner.merge(other.testrunner)
-
-######################################################################
-## 8. Unittest Support
-######################################################################
-
-_unittest_reportflags = 0
-
-def set_unittest_reportflags(flags):
-    """Sets the unittest option flags.
-
-    The old flag is returned so that a runner could restore the old
-    value if it wished to:
-
-      >>> old = _unittest_reportflags
-      >>> set_unittest_reportflags(REPORT_NDIFF |
-      ...                          REPORT_ONLY_FIRST_FAILURE) == old
-      True
-
-      >>> import doctest
-      >>> doctest._unittest_reportflags == (REPORT_NDIFF |
-      ...                                   REPORT_ONLY_FIRST_FAILURE)
-      True
-
-    Only reporting flags can be set:
-
-      >>> set_unittest_reportflags(ELLIPSIS)
-      Traceback (most recent call last):
-      ...
-      ValueError: ('Only reporting flags allowed', 8)
-
-      >>> set_unittest_reportflags(old) == (REPORT_NDIFF |
-      ...                                   REPORT_ONLY_FIRST_FAILURE)
-      True
-    """
-    global _unittest_reportflags
-
-    if (flags & REPORTING_FLAGS) != flags:
-        raise ValueError("Only reporting flags allowed", flags)
-    old = _unittest_reportflags
-    _unittest_reportflags = flags
-    return old
-
-
-class DocTestCase(unittest.TestCase):
-
-    def __init__(self, test, optionflags=0, setUp=None, tearDown=None,
-                 checker=None):
-
-        unittest.TestCase.__init__(self)
-        self._dt_optionflags = optionflags
-        self._dt_checker = checker
-        self._dt_test = test
-        self._dt_setUp = setUp
-        self._dt_tearDown = tearDown
-
-    def setUp(self):
-        test = self._dt_test
-
-        if self._dt_setUp is not None:
-            self._dt_setUp(test)
-
-    def tearDown(self):
-        test = self._dt_test
-
-        if self._dt_tearDown is not None:
-            self._dt_tearDown(test)
-
-        test.globs.clear()
-
-    def runTest(self):
-        test = self._dt_test
-        old = sys.stdout
-        new = StringIO()
-        optionflags = self._dt_optionflags
-
-        if not (optionflags & REPORTING_FLAGS):
-            # The option flags don't include any reporting flags,
-            # so add the default reporting flags
-            optionflags |= _unittest_reportflags
-
-        runner = DocTestRunner(optionflags=optionflags,
-                               checker=self._dt_checker, verbose=False)
-
-        try:
-            runner.DIVIDER = "-"*70
-            failures, tries = runner.run(
-                test, out=new.write, clear_globs=False)
-        finally:
-            sys.stdout = old
-
-        if failures:
-            raise self.failureException(self.format_failure(new.getvalue()))
-
-    def format_failure(self, err):
-        test = self._dt_test
-        if test.lineno is None:
-            lineno = 'unknown line number'
-        else:
-            lineno = '%s' % test.lineno
-        lname = '.'.join(test.name.split('.')[-1:])
-        return ('Failed doctest test for %s\n'
-                '  File "%s", line %s, in %s\n\n%s'
-                % (test.name, test.filename, lineno, lname, err)
-                )
-
-    def debug(self):
-        r"""Run the test case without results and without catching exceptions
-
-           The unit test framework includes a debug method on test cases
-           and test suites to support post-mortem debugging.  The test code
-           is run in such a way that errors are not caught.  This way a
-           caller can catch the errors and initiate post-mortem debugging.
-
-           The DocTestCase provides a debug method that raises
-           UnexpectedException errors if there is an unexepcted
-           exception:
-
-             >>> test = DocTestParser().get_doctest('>>> raise KeyError\n42',
-             ...                {}, 'foo', 'foo.py', 0)
-             >>> case = DocTestCase(test)
-             >>> try:
-             ...     case.debug()
-             ... except UnexpectedException, failure:
-             ...     pass
-
-           The UnexpectedException contains the test, the example, and
-           the original exception:
-
-             >>> failure.test is test
-             True
-
-             >>> failure.example.want
-             '42\n'
-
-             >>> exc_info = failure.exc_info
-             >>> raise exc_info[0], exc_info[1], exc_info[2]
-             Traceback (most recent call last):
-             ...
-             KeyError
-
-           If the output doesn't match, then a DocTestFailure is raised:
-
-             >>> test = DocTestParser().get_doctest('''
-             ...      >>> x = 1
-             ...      >>> x
-             ...      2
-             ...      ''', {}, 'foo', 'foo.py', 0)
-             >>> case = DocTestCase(test)
-
-             >>> try:
-             ...    case.debug()
-             ... except DocTestFailure, failure:
-             ...    pass
-
-           DocTestFailure objects provide access to the test:
-
-             >>> failure.test is test
-             True
-
-           As well as to the example:
-
-             >>> failure.example.want
-             '2\n'
-
-           and the actual output:
-
-             >>> failure.got
-             '1\n'
-
-           """
-
-        self.setUp()
-        runner = DebugRunner(optionflags=self._dt_optionflags,
-                             checker=self._dt_checker, verbose=False)
-        runner.run(self._dt_test)
-        self.tearDown()
-
-    def id(self):
-        return self._dt_test.name
-
-    def __repr__(self):
-        name = self._dt_test.name.split('.')
-        return "%s (%s)" % (name[-1], '.'.join(name[:-1]))
-
-    __str__ = __repr__
-
-    def shortDescription(self):
-        return "Doctest: " + self._dt_test.name
-
-def DocTestSuite(module=None, globs=None, extraglobs=None, test_finder=None,
-                 **options):
-    """
-    Convert doctest tests for a module to a unittest test suite.
-
-    This converts each documentation string in a module that
-    contains doctest tests to a unittest test case.  If any of the
-    tests in a doc string fail, then the test case fails.  An exception
-    is raised showing the name of the file containing the test and a
-    (sometimes approximate) line number.
-
-    The `module` argument provides the module to be tested.  The argument
-    can be either a module or a module name.
-
-    If no argument is given, the calling module is used.
-
-    A number of options may be provided as keyword arguments:
-
-    setUp
-      A set-up function.  This is called before running the
-      tests in each file. The setUp function will be passed a DocTest
-      object.  The setUp function can access the test globals as the
-      globs attribute of the test passed.
-
-    tearDown
-      A tear-down function.  This is called after running the
-      tests in each file.  The tearDown function will be passed a DocTest
-      object.  The tearDown function can access the test globals as the
-      globs attribute of the test passed.
-
-    globs
-      A dictionary containing initial global variables for the tests.
-
-    optionflags
-       A set of doctest option flags expressed as an integer.
-    """
-
-    if test_finder is None:
-        test_finder = DocTestFinder()
-
-    module = _normalize_module(module)
-    tests = test_finder.find(module, globs=globs, extraglobs=extraglobs)
-    if globs is None:
-        globs = module.__dict__
-    if not tests:
-        # Why do we want to do this? Because it reveals a bug that might
-        # otherwise be hidden.
-        raise ValueError(module, "has no tests")
-
-    tests.sort()
-    suite = unittest.TestSuite()
-    for test in tests:
-        if len(test.examples) == 0:
-            continue
-        if not test.filename:
-            filename = module.__file__
-            if filename[-4:] in (".pyc", ".pyo"):
-                filename = filename[:-1]
-            test.filename = filename
-        suite.addTest(DocTestCase(test, **options))
-
-    return suite
-
-class DocFileCase(DocTestCase):
-
-    def id(self):
-        return '_'.join(self._dt_test.name.split('.'))
-
-    def __repr__(self):
-        return self._dt_test.filename
-    __str__ = __repr__
-
-    def format_failure(self, err):
-        return ('Failed doctest test for %s\n  File "%s", line 0\n\n%s'
-                % (self._dt_test.name, self._dt_test.filename, err)
-                )
-
-def DocFileTest(path, module_relative=True, package=None,
-                globs=None, parser=DocTestParser(), **options):
-    if globs is None:
-        globs = {}
-
-    if package and not module_relative:
-        raise ValueError("Package may only be specified for module-"
-                         "relative paths.")
-
-    # Relativize the path.
-    if module_relative:
-        package = _normalize_module(package)
-        path = _module_relative_path(package, path)
-
-    # Find the file and read it.
-    name = os.path.basename(path)
-    doc = open(path).read()
-
-    # Convert it to a test, and wrap it in a DocFileCase.
-    test = parser.get_doctest(doc, globs, name, path, 0)
-    return DocFileCase(test, **options)
-
-def DocFileSuite(*paths, **kw):
-    """A unittest suite for one or more doctest files.
-
-    The path to each doctest file is given as a string; the
-    interpretation of that string depends on the keyword argument
-    "module_relative".
-
-    A number of options may be provided as keyword arguments:
-
-    module_relative
-      If "module_relative" is True, then the given file paths are
-      interpreted as os-independent module-relative paths.  By
-      default, these paths are relative to the calling module's
-      directory; but if the "package" argument is specified, then
-      they are relative to that package.  To ensure os-independence,
-      "filename" should use "/" characters to separate path
-      segments, and may not be an absolute path (i.e., it may not
-      begin with "/").
-
-      If "module_relative" is False, then the given file paths are
-      interpreted as os-specific paths.  These paths may be absolute
-      or relative (to the current working directory).
-
-    package
-      A Python package or the name of a Python package whose directory
-      should be used as the base directory for module relative paths.
-      If "package" is not specified, then the calling module's
-      directory is used as the base directory for module relative
-      filenames.  It is an error to specify "package" if
-      "module_relative" is False.
-
-    setUp
-      A set-up function.  This is called before running the
-      tests in each file. The setUp function will be passed a DocTest
-      object.  The setUp function can access the test globals as the
-      globs attribute of the test passed.
-
-    tearDown
-      A tear-down function.  This is called after running the
-      tests in each file.  The tearDown function will be passed a DocTest
-      object.  The tearDown function can access the test globals as the
-      globs attribute of the test passed.
-
-    globs
-      A dictionary containing initial global variables for the tests.
-
-    optionflags
-      A set of doctest option flags expressed as an integer.
-
-    parser
-      A DocTestParser (or subclass) that should be used to extract
-      tests from the files.
-    """
-    suite = unittest.TestSuite()
-
-    # We do this here so that _normalize_module is called at the right
-    # level.  If it were called in DocFileTest, then this function
-    # would be the caller and we might guess the package incorrectly.
-    if kw.get('module_relative', True):
-        kw['package'] = _normalize_module(kw.get('package'))
-
-    for path in paths:
-        suite.addTest(DocFileTest(path, **kw))
-
-    return suite
-
-######################################################################
-## 9. Debugging Support
-######################################################################
-
-def script_from_examples(s):
-    r"""Extract script from text with examples.
-
-       Converts text with examples to a Python script.  Example input is
-       converted to regular code.  Example output and all other words
-       are converted to comments:
-
-       >>> text = '''
-       ...       Here are examples of simple math.
-       ...
-       ...           Python has super accurate integer addition
-       ...
-       ...           >>> 2 + 2
-       ...           5
-       ...
-       ...           And very friendly error messages:
-       ...
-       ...           >>> 1/0
-       ...           To Infinity
-       ...           And
-       ...           Beyond
-       ...
-       ...           You can use logic if you want:
-       ...
-       ...           >>> if 0:
-       ...           ...    blah
-       ...           ...    blah
-       ...           ...
-       ...
-       ...           Ho hum
-       ...           '''
-
-       >>> print script_from_examples(text)
-       # Here are examples of simple math.
-       #
-       #     Python has super accurate integer addition
-       #
-       2 + 2
-       # Expected:
-       ## 5
-       #
-       #     And very friendly error messages:
-       #
-       1/0
-       # Expected:
-       ## To Infinity
-       ## And
-       ## Beyond
-       #
-       #     You can use logic if you want:
-       #
-       if 0:
-          blah
-          blah
-       #
-       #     Ho hum
-       """
-    output = []
-    for piece in DocTestParser().parse(s):
-        if isinstance(piece, Example):
-            # Add the example's source code (strip trailing NL)
-            output.append(piece.source[:-1])
-            # Add the expected output:
-            want = piece.want
-            if want:
-                output.append('# Expected:')
-                output += ['## '+l for l in want.split('\n')[:-1]]
-        else:
-            # Add non-example text.
-            output += [_comment_line(l)
-                       for l in piece.split('\n')[:-1]]
-
-    # Trim junk on both ends.
-    while output and output[-1] == '#':
-        output.pop()
-    while output and output[0] == '#':
-        output.pop(0)
-    # Combine the output, and return it.
-    return '\n'.join(output)
-
-def testsource(module, name):
-    """Extract the test sources from a doctest docstring as a script.
-
-    Provide the module (or dotted name of the module) containing the
-    test to be debugged and the name (within the module) of the object
-    with the doc string with tests to be debugged.
-    """
-    module = _normalize_module(module)
-    tests = DocTestFinder().find(module)
-    test = [t for t in tests if t.name == name]
-    if not test:
-        raise ValueError(name, "not found in tests")
-    test = test[0]
-    testsrc = script_from_examples(test.docstring)
-    return testsrc
-
-def debug_src(src, pm=False, globs=None):
-    """Debug a single doctest docstring, in argument `src`'"""
-    testsrc = script_from_examples(src)
-    debug_script(testsrc, pm, globs)
-
-def debug_script(src, pm=False, globs=None):
-    "Debug a test script.  `src` is the script, as a string."
-    import pdb
-
-    # Note that tempfile.NameTemporaryFile() cannot be used.  As the
-    # docs say, a file so created cannot be opened by name a second time
-    # on modern Windows boxes, and execfile() needs to open it.
-    srcfilename = tempfile.mktemp(".py", "doctestdebug")
-    f = open(srcfilename, 'w')
-    f.write(src)
-    f.close()
-
-    try:
-        if globs:
-            globs = globs.copy()
-        else:
-            globs = {}
-
-        if pm:
-            try:
-                execfile(srcfilename, globs, globs)
-            except:
-                print sys.exc_info()[1]
-                pdb.post_mortem(sys.exc_info()[2])
-        else:
-            # Note that %r is vital here.  '%s' instead can, e.g., cause
-            # backslashes to get treated as metacharacters on Windows.
-            pdb.run("execfile(%r)" % srcfilename, globs, globs)
-
-    finally:
-        os.remove(srcfilename)
-
-def debug(module, name, pm=False):
-    """Debug a single doctest docstring.
-
-    Provide the module (or dotted name of the module) containing the
-    test to be debugged and the name (within the module) of the object
-    with the docstring with tests to be debugged.
-    """
-    module = _normalize_module(module)
-    testsrc = testsource(module, name)
-    debug_script(testsrc, pm, module.__dict__)
-
-######################################################################
-## 10. Example Usage
-######################################################################
-class _TestClass:
-    """
-    A pointless class, for sanity-checking of docstring testing.
-
-    Methods:
-        square()
-        get()
-
-    >>> _TestClass(13).get() + _TestClass(-12).get()
-    1
-    >>> hex(_TestClass(13).square().get())
-    '0xa9'
-    """
-
-    def __init__(self, val):
-        """val -> _TestClass object with associated value val.
-
-        >>> t = _TestClass(123)
-        >>> print t.get()
-        123
-        """
-
-        self.val = val
-
-    def square(self):
-        """square() -> square TestClass's associated value
-
-        >>> _TestClass(13).square().get()
-        169
-        """
-
-        self.val = self.val ** 2
-        return self
-
-    def get(self):
-        """get() -> return TestClass's associated value.
-
-        >>> x = _TestClass(-42)
-        >>> print x.get()
-        -42
-        """
-
-        return self.val
-
-__test__ = {"_TestClass": _TestClass,
-            "string": r"""
-                      Example of a string object, searched as-is.
-                      >>> x = 1; y = 2
-                      >>> x + y, x * y
-                      (3, 2)
-                      """,
-
-            "bool-int equivalence": r"""
-                                    In 2.2, boolean expressions displayed
-                                    0 or 1.  By default, we still accept
-                                    them.  This can be disabled by passing
-                                    DONT_ACCEPT_TRUE_FOR_1 to the new
-                                    optionflags argument.
-                                    >>> 4 == 4
-                                    1
-                                    >>> 4 == 4
-                                    True
-                                    >>> 4 > 4
-                                    0
-                                    >>> 4 > 4
-                                    False
-                                    """,
-
-            "blank lines": r"""
-                Blank lines can be marked with :
-                    >>> print 'foo\n\nbar\n'
-                    foo
-                    
-                    bar
-                    
-            """,
-
-            "ellipsis": r"""
-                If the ellipsis flag is used, then '...' can be used to
-                elide substrings in the desired output:
-                    >>> print range(1000) #doctest: +ELLIPSIS
-                    [0, 1, 2, ..., 999]
-            """,
-
-            "whitespace normalization": r"""
-                If the whitespace normalization flag is used, then
-                differences in whitespace are ignored.
-                    >>> print range(30) #doctest: +NORMALIZE_WHITESPACE
-                    [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
-                     15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26,
-                     27, 28, 29]
-            """,
-           }
-
-def _test():
-    r = unittest.TextTestRunner()
-    r.run(DocTestSuite())
-
-if __name__ == "__main__":
-    _test()
-
diff --git a/setuptools/tests/environment.py b/setuptools/tests/environment.py
new file mode 100644
index 0000000000..ed5499ef7d
--- /dev/null
+++ b/setuptools/tests/environment.py
@@ -0,0 +1,95 @@
+import os
+import subprocess
+import sys
+import unicodedata
+from subprocess import PIPE as _PIPE, Popen as _Popen
+
+import jaraco.envs
+
+
+class VirtualEnv(jaraco.envs.VirtualEnv):
+    name = '.env'
+    # Some version of PyPy will import distutils on startup, implicitly
+    # importing setuptools, and thus leading to BackendInvalid errors
+    # when upgrading Setuptools. Bypass this behavior by avoiding the
+    # early availability and need to upgrade.
+    create_opts = ['--no-setuptools']
+
+    def run(self, cmd, *args, **kwargs):
+        cmd = [self.exe(cmd[0])] + cmd[1:]
+        kwargs = {"cwd": self.root, "encoding": "utf-8", **kwargs}  # Allow overriding
+        # In some environments (eg. downstream distro packaging), where:
+        # - tox isn't used to run tests and
+        # - PYTHONPATH is set to point to a specific setuptools codebase and
+        # - no custom env is explicitly set by a test
+        # PYTHONPATH will leak into the spawned processes.
+        # In that case tests look for module in the wrong place (on PYTHONPATH).
+        # Unless the test sets its own special env, pass a copy of the existing
+        # environment with removed PYTHONPATH to the subprocesses.
+        if "env" not in kwargs:
+            env = dict(os.environ)
+            if "PYTHONPATH" in env:
+                del env["PYTHONPATH"]
+            kwargs["env"] = env
+        return subprocess.check_output(cmd, *args, **kwargs)
+
+
+def _which_dirs(cmd):
+    result = set()
+    for path in os.environ.get('PATH', '').split(os.pathsep):
+        filename = os.path.join(path, cmd)
+        if os.access(filename, os.X_OK):
+            result.add(path)
+    return result
+
+
+def run_setup_py(cmd, pypath=None, path=None, data_stream=0, env=None):
+    """
+    Execution command for tests, separate from those used by the
+    code directly to prevent accidental behavior issues
+    """
+    if env is None:
+        env = dict()
+        for envname in os.environ:
+            env[envname] = os.environ[envname]
+
+    # override the python path if needed
+    if pypath is not None:
+        env["PYTHONPATH"] = pypath
+
+    # override the execution path if needed
+    if path is not None:
+        env["PATH"] = path
+    if not env.get("PATH", ""):
+        env["PATH"] = _which_dirs("tar").union(_which_dirs("gzip"))
+        env["PATH"] = os.pathsep.join(env["PATH"])
+
+    cmd = [sys.executable, "setup.py"] + list(cmd)
+
+    # https://bugs.python.org/issue8557
+    shell = sys.platform == 'win32'
+
+    try:
+        proc = _Popen(
+            cmd,
+            stdout=_PIPE,
+            stderr=_PIPE,
+            shell=shell,
+            env=env,
+            encoding="utf-8",
+        )
+
+        if isinstance(data_stream, tuple):
+            data_stream = slice(*data_stream)
+        data = proc.communicate()[data_stream]
+    except OSError:
+        return 1, ''
+
+    # decode the console string if needed
+    if hasattr(data, "decode"):
+        # use the default encoding
+        data = data.decode()
+        data = unicodedata.normalize('NFC', data)
+
+    # communicate calls wait()
+    return proc.returncode, data
diff --git a/setuptools/tests/fixtures.py b/setuptools/tests/fixtures.py
new file mode 100644
index 0000000000..a5472984b5
--- /dev/null
+++ b/setuptools/tests/fixtures.py
@@ -0,0 +1,157 @@
+import contextlib
+import os
+import subprocess
+import sys
+from pathlib import Path
+
+import path
+import pytest
+
+from . import contexts, environment
+
+
+@pytest.fixture
+def user_override(monkeypatch):
+    """
+    Override site.USER_BASE and site.USER_SITE with temporary directories in
+    a context.
+    """
+    with contexts.tempdir() as user_base:
+        monkeypatch.setattr('site.USER_BASE', user_base)
+        with contexts.tempdir() as user_site:
+            monkeypatch.setattr('site.USER_SITE', user_site)
+            with contexts.save_user_site_setting():
+                yield
+
+
+@pytest.fixture
+def tmpdir_cwd(tmpdir):
+    with tmpdir.as_cwd() as orig:
+        yield orig
+
+
+@pytest.fixture(autouse=True, scope="session")
+def workaround_xdist_376(request):
+    """
+    Workaround pytest-dev/pytest-xdist#376
+
+    ``pytest-xdist`` tends to inject '' into ``sys.path``,
+    which may break certain isolation expectations.
+    Remove the entry so the import
+    machinery behaves the same irrespective of xdist.
+    """
+    if not request.config.pluginmanager.has_plugin('xdist'):
+        return
+
+    with contextlib.suppress(ValueError):
+        sys.path.remove('')
+
+
+@pytest.fixture
+def sample_project(tmp_path):
+    """
+    Clone the 'sampleproject' and return a path to it.
+    """
+    cmd = ['git', 'clone', 'https://github.com/pypa/sampleproject']
+    try:
+        subprocess.check_call(cmd, cwd=str(tmp_path))
+    except Exception:
+        pytest.skip("Unable to clone sampleproject")
+    return tmp_path / 'sampleproject'
+
+
+# sdist and wheel artifacts should be stable across a round of tests
+# so we can build them once per session and use the files as "readonly"
+
+# In the case of setuptools, building the wheel without sdist may cause
+# it to contain the `build` directory, and therefore create situations with
+# `setuptools/build/lib/build/lib/...`. To avoid that, build both artifacts at once.
+
+
+def _build_distributions(tmp_path_factory, request):
+    with contexts.session_locked_tmp_dir(
+        request, tmp_path_factory, "dist_build"
+    ) as tmp:  # pragma: no cover
+        sdist = next(tmp.glob("*.tar.gz"), None)
+        wheel = next(tmp.glob("*.whl"), None)
+        if sdist and wheel:
+            return (sdist, wheel)
+
+        # Sanity check: should not create recursive setuptools/build/lib/build/lib/...
+        assert not Path(request.config.rootdir, "build/lib/build").exists()
+
+        subprocess.check_output([
+            sys.executable,
+            "-m",
+            "build",
+            "--outdir",
+            str(tmp),
+            str(request.config.rootdir),
+        ])
+
+        # Sanity check: should not create recursive setuptools/build/lib/build/lib/...
+        assert not Path(request.config.rootdir, "build/lib/build").exists()
+
+        return next(tmp.glob("*.tar.gz")), next(tmp.glob("*.whl"))
+
+
+@pytest.fixture(scope="session")
+def setuptools_sdist(tmp_path_factory, request):
+    prebuilt = os.getenv("PRE_BUILT_SETUPTOOLS_SDIST")
+    if prebuilt and os.path.exists(prebuilt):  # pragma: no cover
+        return Path(prebuilt).resolve()
+
+    sdist, _ = _build_distributions(tmp_path_factory, request)
+    return sdist
+
+
+@pytest.fixture(scope="session")
+def setuptools_wheel(tmp_path_factory, request):
+    prebuilt = os.getenv("PRE_BUILT_SETUPTOOLS_WHEEL")
+    if prebuilt and os.path.exists(prebuilt):  # pragma: no cover
+        return Path(prebuilt).resolve()
+
+    _, wheel = _build_distributions(tmp_path_factory, request)
+    return wheel
+
+
+@pytest.fixture
+def venv(tmp_path, setuptools_wheel):
+    """Virtual env with the version of setuptools under test installed"""
+    env = environment.VirtualEnv()
+    env.root = path.Path(tmp_path / 'venv')
+    env.create_opts = ['--no-setuptools', '--wheel=bundle']
+    # TODO: Use `--no-wheel` when setuptools implements its own bdist_wheel
+    env.req = str(setuptools_wheel)
+    # In some environments (eg. downstream distro packaging),
+    # where tox isn't used to run tests and PYTHONPATH is set to point to
+    # a specific setuptools codebase, PYTHONPATH will leak into the spawned
+    # processes.
+    # env.create() should install the just created setuptools
+    # wheel, but it doesn't if it finds another existing matching setuptools
+    # installation present on PYTHONPATH:
+    # `setuptools is already installed with the same version as the provided
+    # wheel. Use --force-reinstall to force an installation of the wheel.`
+    # This prevents leaking PYTHONPATH to the created environment.
+    with contexts.environment(PYTHONPATH=None):
+        return env.create()
+
+
+@pytest.fixture
+def venv_without_setuptools(tmp_path):
+    """Virtual env without any version of setuptools installed"""
+    env = environment.VirtualEnv()
+    env.root = path.Path(tmp_path / 'venv_without_setuptools')
+    env.create_opts = ['--no-setuptools', '--no-wheel']
+    env.ensure_env()
+    return env
+
+
+@pytest.fixture
+def bare_venv(tmp_path):
+    """Virtual env without any common packages installed"""
+    env = environment.VirtualEnv()
+    env.root = path.Path(tmp_path / 'bare_venv')
+    env.create_opts = ['--no-setuptools', '--no-pip', '--no-wheel', '--no-seed']
+    env.ensure_env()
+    return env
diff --git a/setuptools/tests/indexes/test_links_priority/external.html b/setuptools/tests/indexes/test_links_priority/external.html
new file mode 100644
index 0000000000..92e4702f63
--- /dev/null
+++ b/setuptools/tests/indexes/test_links_priority/external.html
@@ -0,0 +1,3 @@
+
+bad old link
+
diff --git a/setuptools/tests/indexes/test_links_priority/simple/foobar/index.html b/setuptools/tests/indexes/test_links_priority/simple/foobar/index.html
new file mode 100644
index 0000000000..fefb028bd3
--- /dev/null
+++ b/setuptools/tests/indexes/test_links_priority/simple/foobar/index.html
@@ -0,0 +1,4 @@
+
+foobar-0.1.tar.gz
    
+external homepage
    
+
diff --git a/setuptools/tests/integration/__init__.py b/setuptools/tests/integration/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/setuptools/tests/integration/helpers.py b/setuptools/tests/integration/helpers.py
new file mode 100644
index 0000000000..77b196e029
--- /dev/null
+++ b/setuptools/tests/integration/helpers.py
@@ -0,0 +1,77 @@
+"""Reusable functions and classes for different types of integration tests.
+
+For example ``Archive`` can be used to check the contents of distribution built
+with setuptools, and ``run`` will always try to be as verbose as possible to
+facilitate debugging.
+"""
+
+import os
+import subprocess
+import tarfile
+from pathlib import Path
+from zipfile import ZipFile
+
+
+def run(cmd, env=None):
+    r = subprocess.run(
+        cmd,
+        capture_output=True,
+        text=True,
+        encoding="utf-8",
+        env={**os.environ, **(env or {})},
+        # ^-- allow overwriting instead of discarding the current env
+    )
+
+    out = r.stdout + "\n" + r.stderr
+    # pytest omits stdout/err by default, if the test fails they help debugging
+    print("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~")
+    print(f"Command: {cmd}\nreturn code: {r.returncode}\n\n{out}")
+
+    if r.returncode == 0:
+        return out
+    raise subprocess.CalledProcessError(r.returncode, cmd, r.stdout, r.stderr)
+
+
+class Archive:
+    """Compatibility layer for ZipFile/Info and TarFile/Info"""
+
+    def __init__(self, filename):
+        self._filename = filename
+        if filename.endswith("tar.gz"):
+            self._obj = tarfile.open(filename, "r:gz")
+        elif filename.endswith("zip"):
+            self._obj = ZipFile(filename)
+        else:
+            raise ValueError(f"{filename} doesn't seem to be a zip or tar.gz")
+
+    def __iter__(self):
+        if hasattr(self._obj, "infolist"):
+            return iter(self._obj.infolist())
+        return iter(self._obj)
+
+    def get_name(self, zip_or_tar_info):
+        if hasattr(zip_or_tar_info, "filename"):
+            return zip_or_tar_info.filename
+        return zip_or_tar_info.name
+
+    def get_content(self, zip_or_tar_info):
+        if hasattr(self._obj, "extractfile"):
+            content = self._obj.extractfile(zip_or_tar_info)
+            if content is None:
+                msg = f"Invalid {zip_or_tar_info.name} in {self._filename}"
+                raise ValueError(msg)
+            return str(content.read(), "utf-8")
+        return str(self._obj.read(zip_or_tar_info), "utf-8")
+
+
+def get_sdist_members(sdist_path):
+    with tarfile.open(sdist_path, "r:gz") as tar:
+        files = [Path(f) for f in tar.getnames()]
+    # remove root folder
+    relative_files = ("/".join(f.parts[1:]) for f in files)
+    return {f for f in relative_files if f}
+
+
+def get_wheel_members(wheel_path):
+    with ZipFile(wheel_path) as zipfile:
+        return set(zipfile.namelist())
diff --git a/setuptools/tests/integration/test_pip_install_sdist.py b/setuptools/tests/integration/test_pip_install_sdist.py
new file mode 100644
index 0000000000..4e84f21832
--- /dev/null
+++ b/setuptools/tests/integration/test_pip_install_sdist.py
@@ -0,0 +1,223 @@
+# https://github.com/python/mypy/issues/16936
+# mypy: disable-error-code="has-type"
+"""Integration tests for setuptools that focus on building packages via pip.
+
+The idea behind these tests is not to exhaustively check all the possible
+combinations of packages, operating systems, supporting libraries, etc, but
+rather check a limited number of popular packages and how they interact with
+the exposed public API. This way if any change in API is introduced, we hope to
+identify backward compatibility problems before publishing a release.
+
+The number of tested packages is purposefully kept small, to minimise duration
+and the associated maintenance cost (changes in the way these packages define
+their build process may require changes in the tests).
+"""
+
+import json
+import os
+import shutil
+import sys
+from enum import Enum
+from glob import glob
+from hashlib import md5
+from urllib.request import urlopen
+
+import pytest
+from packaging.requirements import Requirement
+
+from .helpers import Archive, run
+
+pytestmark = pytest.mark.integration
+
+
+(LATEST,) = Enum("v", "LATEST")  # type: ignore[misc] # https://github.com/python/mypy/issues/16936
+"""Default version to be checked"""
+# There are positive and negative aspects of checking the latest version of the
+# packages.
+# The main positive aspect is that the latest version might have already
+# removed the use of APIs deprecated in previous releases of setuptools.
+
+
+# Packages to be tested:
+# (Please notice the test environment cannot support EVERY library required for
+# compiling binary extensions. In Ubuntu/Debian nomenclature, we only assume
+# that `build-essential`, `gfortran` and `libopenblas-dev` are installed,
+# due to their relevance to the numerical/scientific programming ecosystem)
+EXAMPLES = [
+    ("pip", LATEST),  # just in case...
+    ("pytest", LATEST),  # uses setuptools_scm
+    ("mypy", LATEST),  # custom build_py + ext_modules
+    # --- Popular packages: https://hugovk.github.io/top-pypi-packages/ ---
+    ("botocore", LATEST),
+    ("kiwisolver", LATEST),  # build_ext
+    ("brotli", LATEST),  # not in the list but used by urllib3
+    ("pyyaml", LATEST),  # cython + custom build_ext + custom distclass
+    ("charset-normalizer", LATEST),  # uses mypyc, used by aiohttp
+    ("protobuf", LATEST),
+    # ("requests", LATEST),  # XXX: https://github.com/psf/requests/pull/6920
+    ("celery", LATEST),
+    # When adding packages to this list, make sure they expose a `__version__`
+    # attribute, or modify the tests below
+]
+
+
+# Some packages have "optional" dependencies that modify their build behaviour
+# and are not listed in pyproject.toml, others still use `setup_requires`
+EXTRA_BUILD_DEPS = {
+    "pyyaml": ("Cython<3.0",),  # constraint to avoid errors
+    "charset-normalizer": ("mypy>=1.4.1",),  # no pyproject.toml available
+}
+
+EXTRA_ENV_VARS = {
+    "pyyaml": {"PYYAML_FORCE_CYTHON": "1"},
+    "charset-normalizer": {"CHARSET_NORMALIZER_USE_MYPYC": "1"},
+}
+
+IMPORT_NAME = {
+    "pyyaml": "yaml",
+    "protobuf": "google.protobuf",
+}
+
+
+VIRTUALENV = (sys.executable, "-m", "virtualenv")
+
+
+# By default, pip will try to build packages in isolation (PEP 517), which
+# means it will download the previous stable version of setuptools.
+# `pip` flags can avoid that (the version of setuptools under test
+# should be the one to be used)
+INSTALL_OPTIONS = (
+    "--ignore-installed",
+    "--no-build-isolation",
+    # Omit "--no-binary :all:" the sdist is supplied directly.
+    # Allows dependencies as wheels.
+)
+# The downside of `--no-build-isolation` is that pip will not download build
+# dependencies. The test script will have to also handle that.
+
+
+@pytest.fixture
+def venv_python(tmp_path):
+    run([*VIRTUALENV, str(tmp_path / ".venv")])
+    possible_path = (str(p.parent) for p in tmp_path.glob(".venv/*/python*"))
+    return shutil.which("python", path=os.pathsep.join(possible_path))
+
+
+@pytest.fixture(autouse=True)
+def _prepare(tmp_path, venv_python, monkeypatch):
+    download_path = os.getenv("DOWNLOAD_PATH", str(tmp_path))
+    os.makedirs(download_path, exist_ok=True)
+
+    # Environment vars used for building some of the packages
+    monkeypatch.setenv("USE_MYPYC", "1")
+
+    yield
+
+    # Let's provide the maximum amount of information possible in the case
+    # it is necessary to debug the tests directly from the CI logs.
+    print("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~")
+    print("Temporary directory:")
+    map(print, tmp_path.glob("*"))
+    print("Virtual environment:")
+    run([venv_python, "-m", "pip", "freeze"])
+
+
+@pytest.mark.parametrize(("package", "version"), EXAMPLES)
+@pytest.mark.uses_network
+def test_install_sdist(package, version, tmp_path, venv_python, setuptools_wheel):
+    venv_pip = (venv_python, "-m", "pip")
+    sdist = retrieve_sdist(package, version, tmp_path)
+    deps = build_deps(package, sdist)
+    if deps:
+        print("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~")
+        print("Dependencies:", deps)
+        run([*venv_pip, "install", *deps])
+
+    # Use a virtualenv to simulate PEP 517 isolation
+    # but install fresh setuptools wheel to ensure the version under development
+    env = EXTRA_ENV_VARS.get(package, {})
+    run([*venv_pip, "install", "--force-reinstall", setuptools_wheel])
+    run([*venv_pip, "install", *INSTALL_OPTIONS, sdist], env)
+
+    # Execute a simple script to make sure the package was installed correctly
+    pkg = IMPORT_NAME.get(package, package).replace("-", "_")
+    script = f"import {pkg}; print(getattr({pkg}, '__version__', 0))"
+    run([venv_python, "-c", script])
+
+
+# ---- Helper Functions ----
+
+
+def retrieve_sdist(package, version, tmp_path):
+    """Either use cached sdist file or download it from PyPI"""
+    # `pip download` cannot be used due to
+    # https://github.com/pypa/pip/issues/1884
+    # https://discuss.python.org/t/pep-625-file-name-of-a-source-distribution/4686
+    # We have to find the correct distribution file and download it
+    download_path = os.getenv("DOWNLOAD_PATH", str(tmp_path))
+    dist = retrieve_pypi_sdist_metadata(package, version)
+
+    # Remove old files to prevent cache to grow indefinitely
+    for file in glob(os.path.join(download_path, f"{package}*")):
+        if dist["filename"] != file:
+            os.unlink(file)
+
+    dist_file = os.path.join(download_path, dist["filename"])
+    if not os.path.exists(dist_file):
+        download(dist["url"], dist_file, dist["md5_digest"])
+    return dist_file
+
+
+def retrieve_pypi_sdist_metadata(package, version):
+    # https://warehouse.pypa.io/api-reference/json.html
+    id_ = package if version is LATEST else f"{package}/{version}"
+    with urlopen(f"https://pypi.org/pypi/{id_}/json") as f:
+        metadata = json.load(f)
+
+    if metadata["info"]["yanked"]:
+        raise ValueError(f"Release for {package} {version} was yanked")
+
+    version = metadata["info"]["version"]
+    release = metadata["releases"][version] if version is LATEST else metadata["urls"]
+    (sdist,) = filter(lambda d: d["packagetype"] == "sdist", release)
+    return sdist
+
+
+def download(url, dest, md5_digest):
+    with urlopen(url) as f:
+        data = f.read()
+
+    assert md5(data).hexdigest() == md5_digest
+
+    with open(dest, "wb") as f:
+        f.write(data)
+
+    assert os.path.exists(dest)
+
+
+def build_deps(package, sdist_file):
+    """Find out what are the build dependencies for a package.
+
+    "Manually" install them, since pip will not install build
+    deps with `--no-build-isolation`.
+    """
+    # delay importing, since pytest discovery phase may hit this file from a
+    # testenv without tomli
+    from setuptools.compat.py310 import tomllib
+
+    archive = Archive(sdist_file)
+    info = tomllib.loads(_read_pyproject(archive))
+    deps = info.get("build-system", {}).get("requires", [])
+    deps += EXTRA_BUILD_DEPS.get(package, [])
+    # Remove setuptools from requirements (and deduplicate)
+    requirements = {Requirement(d).name: d for d in deps}
+    return [v for k, v in requirements.items() if k != "setuptools"]
+
+
+def _read_pyproject(archive):
+    contents = (
+        archive.get_content(member)
+        for member in archive
+        if os.path.basename(archive.get_name(member)) == "pyproject.toml"
+    )
+    return next(contents, "")
diff --git a/setuptools/tests/mod_with_constant.py b/setuptools/tests/mod_with_constant.py
new file mode 100644
index 0000000000..ef755dd1c7
--- /dev/null
+++ b/setuptools/tests/mod_with_constant.py
@@ -0,0 +1 @@
+value = 'three, sir!'
diff --git a/setuptools/tests/namespaces.py b/setuptools/tests/namespaces.py
new file mode 100644
index 0000000000..248db98f97
--- /dev/null
+++ b/setuptools/tests/namespaces.py
@@ -0,0 +1,90 @@
+import ast
+import json
+import textwrap
+from pathlib import Path
+
+
+def iter_namespace_pkgs(namespace):
+    parts = namespace.split(".")
+    for i in range(len(parts)):
+        yield ".".join(parts[: i + 1])
+
+
+def build_namespace_package(tmpdir, name, version="1.0", impl="pkg_resources"):
+    src_dir = tmpdir / name
+    src_dir.mkdir()
+    setup_py = src_dir / 'setup.py'
+    namespace, _, rest = name.rpartition('.')
+    namespaces = list(iter_namespace_pkgs(namespace))
+    setup_args = {
+        "name": name,
+        "version": version,
+        "packages": namespaces,
+    }
+
+    if impl == "pkg_resources":
+        tmpl = '__import__("pkg_resources").declare_namespace(__name__)'
+        setup_args["namespace_packages"] = namespaces
+    elif impl == "pkgutil":
+        tmpl = '__path__ = __import__("pkgutil").extend_path(__path__, __name__)'
+    else:
+        raise ValueError(f"Cannot recognise {impl=} when creating namespaces")
+
+    args = json.dumps(setup_args, indent=4)
+    assert ast.literal_eval(args)  # ensure it is valid Python
+
+    script = textwrap.dedent(
+        """\
+        import setuptools
+        args = {args}
+        setuptools.setup(**args)
+        """
+    ).format(args=args)
+    setup_py.write_text(script, encoding='utf-8')
+
+    ns_pkg_dir = Path(src_dir, namespace.replace(".", "/"))
+    ns_pkg_dir.mkdir(parents=True)
+
+    for ns in namespaces:
+        pkg_init = src_dir / ns.replace(".", "/") / '__init__.py'
+        pkg_init.write_text(tmpl, encoding='utf-8')
+
+    pkg_mod = ns_pkg_dir / (rest + '.py')
+    some_functionality = 'name = {rest!r}'.format(**locals())
+    pkg_mod.write_text(some_functionality, encoding='utf-8')
+    return src_dir
+
+
+def build_pep420_namespace_package(tmpdir, name):
+    src_dir = tmpdir / name
+    src_dir.mkdir()
+    pyproject = src_dir / "pyproject.toml"
+    namespace, _, rest = name.rpartition(".")
+    script = f"""\
+        [build-system]
+        requires = ["setuptools"]
+        build-backend = "setuptools.build_meta"
+
+        [project]
+        name = "{name}"
+        version = "3.14159"
+        """
+    pyproject.write_text(textwrap.dedent(script), encoding='utf-8')
+    ns_pkg_dir = Path(src_dir, namespace.replace(".", "/"))
+    ns_pkg_dir.mkdir(parents=True)
+    pkg_mod = ns_pkg_dir / (rest + ".py")
+    some_functionality = f"name = {rest!r}"
+    pkg_mod.write_text(some_functionality, encoding='utf-8')
+    return src_dir
+
+
+def make_site_dir(target):
+    """
+    Add a sitecustomize.py module in target to cause
+    target to be added to site dirs such that .pth files
+    are processed there.
+    """
+    sc = target / 'sitecustomize.py'
+    target_str = str(target)
+    tmpl = '__import__("site").addsitedir({target_str!r})'
+    sc.write_text(tmpl.format(**locals()), encoding='utf-8')
diff --git a/setuptools/tests/script-with-bom.py b/setuptools/tests/script-with-bom.py
new file mode 100644
index 0000000000..c074d263c4
--- /dev/null
+++ b/setuptools/tests/script-with-bom.py
@@ -0,0 +1 @@
+result = 'passed'
diff --git a/setuptools/tests/test_archive_util.py b/setuptools/tests/test_archive_util.py
new file mode 100644
index 0000000000..e3efc62889
--- /dev/null
+++ b/setuptools/tests/test_archive_util.py
@@ -0,0 +1,36 @@
+import io
+import tarfile
+
+import pytest
+
+from setuptools import archive_util
+
+
+@pytest.fixture
+def tarfile_with_unicode(tmpdir):
+    """
+    Create a tarfile containing only a file whose name is
+    a zero byte file called testimäge.png.
+    """
+    tarobj = io.BytesIO()
+
+    with tarfile.open(fileobj=tarobj, mode="w:gz") as tgz:
+        data = b""
+
+        filename = "testimäge.png"
+
+        t = tarfile.TarInfo(filename)
+        t.size = len(data)
+
+        tgz.addfile(t, io.BytesIO(data))
+
+    target = tmpdir / 'unicode-pkg-1.0.tar.gz'
+    with open(str(target), mode='wb') as tf:
+        tf.write(tarobj.getvalue())
+    return str(target)
+
+
+@pytest.mark.xfail(reason="#710 and #712")
+def test_unicode_files(tarfile_with_unicode, tmpdir):
+    target = tmpdir / 'out'
+    archive_util.unpack_archive(tarfile_with_unicode, str(target))
diff --git a/setuptools/tests/test_bdist_deprecations.py b/setuptools/tests/test_bdist_deprecations.py
new file mode 100644
index 0000000000..d9d67b0616
--- /dev/null
+++ b/setuptools/tests/test_bdist_deprecations.py
@@ -0,0 +1,28 @@
+"""develop tests"""
+
+import sys
+from unittest import mock
+
+import pytest
+
+from setuptools import SetuptoolsDeprecationWarning
+from setuptools.dist import Distribution
+
+
+@pytest.mark.skipif(sys.platform == 'win32', reason='non-Windows only')
+@pytest.mark.xfail(reason="bdist_rpm is long deprecated, should we remove it? #1988")
+@mock.patch('distutils.command.bdist_rpm.bdist_rpm')
+def test_bdist_rpm_warning(distutils_cmd, tmpdir_cwd):
+    dist = Distribution(
+        dict(
+            script_name='setup.py',
+            script_args=['bdist_rpm'],
+            name='foo',
+            py_modules=['hi'],
+        )
+    )
+    dist.parse_command_line()
+    with pytest.warns(SetuptoolsDeprecationWarning):
+        dist.run_commands()
+
+    distutils_cmd.run.assert_called_once()
diff --git a/setuptools/tests/test_bdist_egg.py b/setuptools/tests/test_bdist_egg.py
new file mode 100644
index 0000000000..036167dd95
--- /dev/null
+++ b/setuptools/tests/test_bdist_egg.py
@@ -0,0 +1,73 @@
+"""develop tests"""
+
+import os
+import re
+import zipfile
+
+import pytest
+
+from setuptools.dist import Distribution
+
+from . import contexts
+
+SETUP_PY = """\
+from setuptools import setup
+
+setup(py_modules=['hi'])
+"""
+
+
+@pytest.fixture
+def setup_context(tmpdir):
+    with (tmpdir / 'setup.py').open('w') as f:
+        f.write(SETUP_PY)
+    with (tmpdir / 'hi.py').open('w') as f:
+        f.write('1\n')
+    with tmpdir.as_cwd():
+        yield tmpdir
+
+
+class Test:
+    @pytest.mark.usefixtures("user_override")
+    @pytest.mark.usefixtures("setup_context")
+    def test_bdist_egg(self):
+        dist = Distribution(
+            dict(
+                script_name='setup.py',
+                script_args=['bdist_egg'],
+                name='foo',
+                py_modules=['hi'],
+            )
+        )
+        os.makedirs(os.path.join('build', 'src'))
+        with contexts.quiet():
+            dist.parse_command_line()
+            dist.run_commands()
+
+        # let's see if we got our egg link at the right place
+        [content] = os.listdir('dist')
+        assert re.match(r'foo-0.0.0-py[23].\d+.egg$', content)
+
+    @pytest.mark.xfail(
+        os.environ.get('PYTHONDONTWRITEBYTECODE', False),
+        reason="Byte code disabled",
+    )
+    @pytest.mark.usefixtures("user_override")
+    @pytest.mark.usefixtures("setup_context")
+    def test_exclude_source_files(self):
+        dist = Distribution(
+            dict(
+                script_name='setup.py',
+                script_args=['bdist_egg', '--exclude-source-files'],
+                py_modules=['hi'],
+            )
+        )
+        with contexts.quiet():
+            dist.parse_command_line()
+            dist.run_commands()
+        [dist_name] = os.listdir('dist')
+        dist_filename = os.path.join('dist', dist_name)
+        zip = zipfile.ZipFile(dist_filename)
+        names = list(zi.filename for zi in zip.filelist)
+        assert 'hi.pyc' in names
+        assert 'hi.py' not in names
diff --git a/setuptools/tests/test_bdist_wheel.py b/setuptools/tests/test_bdist_wheel.py
new file mode 100644
index 0000000000..2ab4e9cfc6
--- /dev/null
+++ b/setuptools/tests/test_bdist_wheel.py
@@ -0,0 +1,708 @@
+from __future__ import annotations
+
+import builtins
+import importlib
+import os.path
+import platform
+import shutil
+import stat
+import struct
+import sys
+import sysconfig
+from contextlib import suppress
+from inspect import cleandoc
+from zipfile import ZipFile
+
+import jaraco.path
+import pytest
+from packaging import tags
+
+import setuptools
+from setuptools.command.bdist_wheel import bdist_wheel, get_abi_tag
+from setuptools.dist import Distribution
+from setuptools.warnings import SetuptoolsDeprecationWarning
+
+from distutils.core import run_setup
+
+DEFAULT_FILES = {
+    "dummy_dist-1.0.dist-info/top_level.txt",
+    "dummy_dist-1.0.dist-info/METADATA",
+    "dummy_dist-1.0.dist-info/WHEEL",
+    "dummy_dist-1.0.dist-info/RECORD",
+}
+DEFAULT_LICENSE_FILES = {
+    "LICENSE",
+    "LICENSE.txt",
+    "LICENCE",
+    "LICENCE.txt",
+    "COPYING",
+    "COPYING.md",
+    "NOTICE",
+    "NOTICE.rst",
+    "AUTHORS",
+    "AUTHORS.txt",
+}
+OTHER_IGNORED_FILES = {
+    "LICENSE~",
+    "AUTHORS~",
+}
+SETUPPY_EXAMPLE = """\
+from setuptools import setup
+
+setup(
+    name='dummy_dist',
+    version='1.0',
+)
+"""
+
+
+EXAMPLES = {
+    "dummy-dist": {
+        "setup.py": SETUPPY_EXAMPLE,
+        "licenses_dir": {"DUMMYFILE": ""},
+        **dict.fromkeys(DEFAULT_LICENSE_FILES | OTHER_IGNORED_FILES, ""),
+    },
+    "simple-dist": {
+        "setup.py": cleandoc(
+            """
+            from setuptools import setup
+
+            setup(
+                name="simple.dist",
+                version="0.1",
+                description="A testing distribution \N{SNOWMAN}",
+                extras_require={"voting": ["beaglevote"]},
+            )
+            """
+        ),
+        "simpledist": "",
+    },
+    "complex-dist": {
+        "setup.py": cleandoc(
+            """
+            from setuptools import setup
+
+            setup(
+                name="complex-dist",
+                version="0.1",
+                description="Another testing distribution \N{SNOWMAN}",
+                long_description="Another testing distribution \N{SNOWMAN}",
+                author="Illustrious Author",
+                author_email="illustrious@example.org",
+                url="http://example.org/exemplary",
+                packages=["complexdist"],
+                setup_requires=["setuptools"],
+                install_requires=["quux", "splort"],
+                extras_require={"simple": ["simple.dist"]},
+                entry_points={
+                    "console_scripts": [
+                        "complex-dist=complexdist:main",
+                        "complex-dist2=complexdist:main",
+                    ],
+                },
+            )
+            """
+        ),
+        "complexdist": {"__init__.py": "def main(): return"},
+    },
+    "headers-dist": {
+        "setup.py": cleandoc(
+            """
+            from setuptools import setup
+
+            setup(
+                name="headers.dist",
+                version="0.1",
+                description="A distribution with headers",
+                headers=["header.h"],
+            )
+            """
+        ),
+        "headersdist.py": "",
+        "header.h": "",
+    },
+    "commasinfilenames-dist": {
+        "setup.py": cleandoc(
+            """
+            from setuptools import setup
+
+            setup(
+                name="testrepo",
+                version="0.1",
+                packages=["mypackage"],
+                description="A test package with commas in file names",
+                include_package_data=True,
+                package_data={"mypackage.data": ["*"]},
+            )
+            """
+        ),
+        "mypackage": {
+            "__init__.py": "",
+            "data": {"__init__.py": "", "1,2,3.txt": ""},
+        },
+        "testrepo-0.1.0": {
+            "mypackage": {"__init__.py": ""},
+        },
+    },
+    "unicode-dist": {
+        "setup.py": cleandoc(
+            """
+            from setuptools import setup
+
+            setup(
+                name="unicode.dist",
+                version="0.1",
+                description="A testing distribution \N{SNOWMAN}",
+                packages=["unicodedist"],
+                zip_safe=True,
+            )
+            """
+        ),
+        "unicodedist": {"__init__.py": "", "åäö_日本語.py": ""},
+    },
+    "utf8-metadata-dist": {
+        "setup.cfg": cleandoc(
+            """
+            [metadata]
+            name = utf8-metadata-dist
+            version = 42
+            author_email = "John X. Ãørçeč" , Γαμα קּ 東 
+            long_description = file: README.rst
+            """
+        ),
+        "README.rst": "UTF-8 描述 説明",
+    },
+    "licenses-dist": {
+        "setup.cfg": cleandoc(
+            """
+            [metadata]
+            name = licenses-dist
+            version = 1.0
+            license_files = **/LICENSE
+            """
+        ),
+        "LICENSE": "",
+        "src": {
+            "vendor": {"LICENSE": ""},
+        },
+    },
+}
+
+
+if sys.platform != "win32":
+    # ABI3 extensions don't really work on Windows
+    EXAMPLES["abi3extension-dist"] = {
+        "setup.py": cleandoc(
+            """
+            from setuptools import Extension, setup
+
+            setup(
+                name="extension.dist",
+                version="0.1",
+                description="A testing distribution \N{SNOWMAN}",
+                ext_modules=[
+                    Extension(
+                        name="extension", sources=["extension.c"], py_limited_api=True
+                    )
+                ],
+            )
+            """
+        ),
+        "setup.cfg": "[bdist_wheel]\npy_limited_api=cp32",
+        "extension.c": "#define Py_LIMITED_API 0x03020000\n#include ",
+    }
+
+
+def bdist_wheel_cmd(**kwargs):
+    """Run command in the same process so that it is easier to collect coverage"""
+    dist_obj = (
+        run_setup("setup.py", stop_after="init")
+        if os.path.exists("setup.py")
+        else Distribution({"script_name": "%%build_meta%%"})
+    )
+    dist_obj.parse_config_files()
+    cmd = bdist_wheel(dist_obj)
+    for attr, value in kwargs.items():
+        setattr(cmd, attr, value)
+    cmd.finalize_options()
+    return cmd
+
+
+def mkexample(tmp_path_factory, name):
+    basedir = tmp_path_factory.mktemp(name)
+    jaraco.path.build(EXAMPLES[name], prefix=str(basedir))
+    return basedir
+
+
+@pytest.fixture(scope="session")
+def wheel_paths(tmp_path_factory):
+    build_base = tmp_path_factory.mktemp("build")
+    dist_dir = tmp_path_factory.mktemp("dist")
+    for name in EXAMPLES:
+        example_dir = mkexample(tmp_path_factory, name)
+        build_dir = build_base / name
+        with jaraco.path.DirectoryStack().context(example_dir):
+            bdist_wheel_cmd(bdist_dir=str(build_dir), dist_dir=str(dist_dir)).run()
+
+    return sorted(str(fname) for fname in dist_dir.glob("*.whl"))
+
+
+@pytest.fixture
+def dummy_dist(tmp_path_factory):
+    return mkexample(tmp_path_factory, "dummy-dist")
+
+
+@pytest.fixture
+def licenses_dist(tmp_path_factory):
+    return mkexample(tmp_path_factory, "licenses-dist")
+
+
+def test_no_scripts(wheel_paths):
+    """Make sure entry point scripts are not generated."""
+    path = next(path for path in wheel_paths if "complex_dist" in path)
+    for entry in ZipFile(path).infolist():
+        assert ".data/scripts/" not in entry.filename
+
+
+def test_unicode_record(wheel_paths):
+    path = next(path for path in wheel_paths if "unicode_dist" in path)
+    with ZipFile(path) as zf:
+        record = zf.read("unicode_dist-0.1.dist-info/RECORD")
+
+    assert "åäö_日本語.py".encode() in record
+
+
+UTF8_PKG_INFO = """\
+Metadata-Version: 2.1
+Name: helloworld
+Version: 42
+Author-email: "John X. Ãørçeč" , Γαμα קּ 東 
+
+
+UTF-8 描述 説明
+"""
+
+
+def test_preserve_unicode_metadata(monkeypatch, tmp_path):
+    monkeypatch.chdir(tmp_path)
+    egginfo = tmp_path / "dummy_dist.egg-info"
+    distinfo = tmp_path / "dummy_dist.dist-info"
+
+    egginfo.mkdir()
+    (egginfo / "PKG-INFO").write_text(UTF8_PKG_INFO, encoding="utf-8")
+    (egginfo / "dependency_links.txt").touch()
+
+    class simpler_bdist_wheel(bdist_wheel):
+        """Avoid messing with setuptools/distutils internals"""
+
+        def __init__(self):
+            pass
+
+        @property
+        def license_paths(self):
+            return []
+
+    cmd_obj = simpler_bdist_wheel()
+    cmd_obj.egg2dist(egginfo, distinfo)
+
+    metadata = (distinfo / "METADATA").read_text(encoding="utf-8")
+    assert 'Author-email: "John X. Ãørçeč"' in metadata
+    assert "Γαμα קּ 東 " in metadata
+    assert "UTF-8 描述 説明" in metadata
+
+
+def test_licenses_default(dummy_dist, monkeypatch, tmp_path):
+    monkeypatch.chdir(dummy_dist)
+    bdist_wheel_cmd(bdist_dir=str(tmp_path)).run()
+    with ZipFile("dist/dummy_dist-1.0-py3-none-any.whl") as wf:
+        license_files = {
+            "dummy_dist-1.0.dist-info/licenses/" + fname
+            for fname in DEFAULT_LICENSE_FILES
+        }
+        assert set(wf.namelist()) == DEFAULT_FILES | license_files
+
+
+def test_licenses_deprecated(dummy_dist, monkeypatch, tmp_path):
+    dummy_dist.joinpath("setup.cfg").write_text(
+        "[metadata]\nlicense_file=licenses_dir/DUMMYFILE", encoding="utf-8"
+    )
+    monkeypatch.chdir(dummy_dist)
+
+    bdist_wheel_cmd(bdist_dir=str(tmp_path)).run()
+
+    with ZipFile("dist/dummy_dist-1.0-py3-none-any.whl") as wf:
+        license_files = {"dummy_dist-1.0.dist-info/licenses/licenses_dir/DUMMYFILE"}
+        assert set(wf.namelist()) == DEFAULT_FILES | license_files
+
+
+@pytest.mark.parametrize(
+    ("config_file", "config"),
+    [
+        ("setup.cfg", "[metadata]\nlicense_files=licenses_dir/*\n  LICENSE"),
+        ("setup.cfg", "[metadata]\nlicense_files=licenses_dir/*, LICENSE"),
+        (
+            "setup.py",
+            SETUPPY_EXAMPLE.replace(
+                ")", "  license_files=['licenses_dir/DUMMYFILE', 'LICENSE'])"
+            ),
+        ),
+    ],
+)
+def test_licenses_override(dummy_dist, monkeypatch, tmp_path, config_file, config):
+    dummy_dist.joinpath(config_file).write_text(config, encoding="utf-8")
+    monkeypatch.chdir(dummy_dist)
+    bdist_wheel_cmd(bdist_dir=str(tmp_path)).run()
+    with ZipFile("dist/dummy_dist-1.0-py3-none-any.whl") as wf:
+        license_files = {
+            "dummy_dist-1.0.dist-info/licenses/" + fname
+            for fname in {"licenses_dir/DUMMYFILE", "LICENSE"}
+        }
+        assert set(wf.namelist()) == DEFAULT_FILES | license_files
+        metadata = wf.read("dummy_dist-1.0.dist-info/METADATA").decode("utf8")
+        assert "License-File: licenses_dir/DUMMYFILE" in metadata
+        assert "License-File: LICENSE" in metadata
+
+
+def test_licenses_preserve_folder_structure(licenses_dist, monkeypatch, tmp_path):
+    monkeypatch.chdir(licenses_dist)
+    bdist_wheel_cmd(bdist_dir=str(tmp_path)).run()
+    print(os.listdir("dist"))
+    with ZipFile("dist/licenses_dist-1.0-py3-none-any.whl") as wf:
+        default_files = {name.replace("dummy_", "licenses_") for name in DEFAULT_FILES}
+        license_files = {
+            "licenses_dist-1.0.dist-info/licenses/LICENSE",
+            "licenses_dist-1.0.dist-info/licenses/src/vendor/LICENSE",
+        }
+        assert set(wf.namelist()) == default_files | license_files
+        metadata = wf.read("licenses_dist-1.0.dist-info/METADATA").decode("utf8")
+        assert "License-File: src/vendor/LICENSE" in metadata
+        assert "License-File: LICENSE" in metadata
+
+
+def test_licenses_disabled(dummy_dist, monkeypatch, tmp_path):
+    dummy_dist.joinpath("setup.cfg").write_text(
+        "[metadata]\nlicense_files=\n", encoding="utf-8"
+    )
+    monkeypatch.chdir(dummy_dist)
+    bdist_wheel_cmd(bdist_dir=str(tmp_path)).run()
+    with ZipFile("dist/dummy_dist-1.0-py3-none-any.whl") as wf:
+        assert set(wf.namelist()) == DEFAULT_FILES
+
+
+def test_build_number(dummy_dist, monkeypatch, tmp_path):
+    monkeypatch.chdir(dummy_dist)
+    bdist_wheel_cmd(bdist_dir=str(tmp_path), build_number="2").run()
+    with ZipFile("dist/dummy_dist-1.0-2-py3-none-any.whl") as wf:
+        filenames = set(wf.namelist())
+        assert "dummy_dist-1.0.dist-info/RECORD" in filenames
+        assert "dummy_dist-1.0.dist-info/METADATA" in filenames
+
+
+def test_universal_deprecated(dummy_dist, monkeypatch, tmp_path):
+    monkeypatch.chdir(dummy_dist)
+    with pytest.warns(SetuptoolsDeprecationWarning, match=".*universal is deprecated"):
+        bdist_wheel_cmd(bdist_dir=str(tmp_path), universal=True).run()
+
+    # For now we still respect the option
+    assert os.path.exists("dist/dummy_dist-1.0-py2.py3-none-any.whl")
+
+
+EXTENSION_EXAMPLE = """\
+#include 
+
+static PyMethodDef methods[] = {
+  { NULL, NULL, 0, NULL }
+};
+
+static struct PyModuleDef module_def = {
+  PyModuleDef_HEAD_INIT,
+  "extension",
+  "Dummy extension module",
+  -1,
+  methods
+};
+
+PyMODINIT_FUNC PyInit_extension(void) {
+  return PyModule_Create(&module_def);
+}
+"""
+EXTENSION_SETUPPY = """\
+from __future__ import annotations
+
+from setuptools import Extension, setup
+
+setup(
+    name="extension.dist",
+    version="0.1",
+    description="A testing distribution \N{SNOWMAN}",
+    ext_modules=[Extension(name="extension", sources=["extension.c"])],
+)
+"""
+
+
+@pytest.mark.filterwarnings(
+    "once:Config variable '.*' is unset.*, Python ABI tag may be incorrect"
+)
+def test_limited_abi(monkeypatch, tmp_path, tmp_path_factory):
+    """Test that building a binary wheel with the limited ABI works."""
+    source_dir = tmp_path_factory.mktemp("extension_dist")
+    (source_dir / "setup.py").write_text(EXTENSION_SETUPPY, encoding="utf-8")
+    (source_dir / "extension.c").write_text(EXTENSION_EXAMPLE, encoding="utf-8")
+    build_dir = tmp_path.joinpath("build")
+    dist_dir = tmp_path.joinpath("dist")
+    monkeypatch.chdir(source_dir)
+    bdist_wheel_cmd(bdist_dir=str(build_dir), dist_dir=str(dist_dir)).run()
+
+
+def test_build_from_readonly_tree(dummy_dist, monkeypatch, tmp_path):
+    basedir = str(tmp_path.joinpath("dummy"))
+    shutil.copytree(str(dummy_dist), basedir)
+    monkeypatch.chdir(basedir)
+
+    # Make the tree read-only
+    for root, _dirs, files in os.walk(basedir):
+        for fname in files:
+            os.chmod(os.path.join(root, fname), stat.S_IREAD)
+
+    bdist_wheel_cmd().run()
+
+
+@pytest.mark.parametrize(
+    ("option", "compress_type"),
+    list(bdist_wheel.supported_compressions.items()),
+    ids=list(bdist_wheel.supported_compressions),
+)
+def test_compression(dummy_dist, monkeypatch, tmp_path, option, compress_type):
+    monkeypatch.chdir(dummy_dist)
+    bdist_wheel_cmd(bdist_dir=str(tmp_path), compression=option).run()
+    with ZipFile("dist/dummy_dist-1.0-py3-none-any.whl") as wf:
+        filenames = set(wf.namelist())
+        assert "dummy_dist-1.0.dist-info/RECORD" in filenames
+        assert "dummy_dist-1.0.dist-info/METADATA" in filenames
+        for zinfo in wf.filelist:
+            assert zinfo.compress_type == compress_type
+
+
+def test_wheelfile_line_endings(wheel_paths):
+    for path in wheel_paths:
+        with ZipFile(path) as wf:
+            wheelfile = next(fn for fn in wf.filelist if fn.filename.endswith("WHEEL"))
+            wheelfile_contents = wf.read(wheelfile)
+            assert b"\r" not in wheelfile_contents
+
+
+def test_unix_epoch_timestamps(dummy_dist, monkeypatch, tmp_path):
+    monkeypatch.setenv("SOURCE_DATE_EPOCH", "0")
+    monkeypatch.chdir(dummy_dist)
+    bdist_wheel_cmd(bdist_dir=str(tmp_path), build_number="2a").run()
+    with ZipFile("dist/dummy_dist-1.0-2a-py3-none-any.whl") as wf:
+        for zinfo in wf.filelist:
+            assert zinfo.date_time >= (1980, 1, 1, 0, 0, 0)  # min epoch is used
+
+
+def test_get_abi_tag_windows(monkeypatch):
+    monkeypatch.setattr(tags, "interpreter_name", lambda: "cp")
+    monkeypatch.setattr(sysconfig, "get_config_var", lambda x: "cp313-win_amd64")
+    assert get_abi_tag() == "cp313"
+    monkeypatch.setattr(sys, "gettotalrefcount", lambda: 1, False)
+    assert get_abi_tag() == "cp313d"
+    monkeypatch.setattr(sysconfig, "get_config_var", lambda x: "cp313t-win_amd64")
+    assert get_abi_tag() == "cp313td"
+    monkeypatch.delattr(sys, "gettotalrefcount")
+    assert get_abi_tag() == "cp313t"
+
+
+def test_get_abi_tag_pypy_old(monkeypatch):
+    monkeypatch.setattr(tags, "interpreter_name", lambda: "pp")
+    monkeypatch.setattr(sysconfig, "get_config_var", lambda x: "pypy36-pp73")
+    assert get_abi_tag() == "pypy36_pp73"
+
+
+def test_get_abi_tag_pypy_new(monkeypatch):
+    monkeypatch.setattr(sysconfig, "get_config_var", lambda x: "pypy37-pp73-darwin")
+    monkeypatch.setattr(tags, "interpreter_name", lambda: "pp")
+    assert get_abi_tag() == "pypy37_pp73"
+
+
+def test_get_abi_tag_graalpy(monkeypatch):
+    monkeypatch.setattr(
+        sysconfig, "get_config_var", lambda x: "graalpy231-310-native-x86_64-linux"
+    )
+    monkeypatch.setattr(tags, "interpreter_name", lambda: "graalpy")
+    assert get_abi_tag() == "graalpy231_310_native"
+
+
+def test_get_abi_tag_fallback(monkeypatch):
+    monkeypatch.setattr(sysconfig, "get_config_var", lambda x: "unknown-python-310")
+    monkeypatch.setattr(tags, "interpreter_name", lambda: "unknown-python")
+    assert get_abi_tag() == "unknown_python_310"
+
+
+def test_platform_with_space(dummy_dist, monkeypatch):
+    """Ensure building on platforms with a space in the name succeed."""
+    monkeypatch.chdir(dummy_dist)
+    bdist_wheel_cmd(plat_name="isilon onefs").run()
+
+
+def test_data_dir_with_tag_build(monkeypatch, tmp_path):
+    """
+    Setuptools allow authors to set PEP 440's local version segments
+    using ``egg_info.tag_build``. This should be reflected not only in the
+    ``.whl`` file name, but also in the ``.dist-info`` and ``.data`` dirs.
+    See pypa/setuptools#3997.
+    """
+    monkeypatch.chdir(tmp_path)
+    files = {
+        "setup.py": """
+            from setuptools import setup
+            setup(headers=["hello.h"])
+            """,
+        "setup.cfg": """
+            [metadata]
+            name = test
+            version = 1.0
+
+            [options.data_files]
+            hello/world = file.txt
+
+            [egg_info]
+            tag_build = +what
+            tag_date = 0
+            """,
+        "file.txt": "",
+        "hello.h": "",
+    }
+    for file, content in files.items():
+        with open(file, "w", encoding="utf-8") as fh:
+            fh.write(cleandoc(content))
+
+    bdist_wheel_cmd().run()
+
+    # Ensure .whl, .dist-info and .data contain the local segment
+    wheel_path = "dist/test-1.0+what-py3-none-any.whl"
+    assert os.path.exists(wheel_path)
+    entries = set(ZipFile(wheel_path).namelist())
+    for expected in (
+        "test-1.0+what.data/headers/hello.h",
+        "test-1.0+what.data/data/hello/world/file.txt",
+        "test-1.0+what.dist-info/METADATA",
+        "test-1.0+what.dist-info/WHEEL",
+    ):
+        assert expected in entries
+
+    for not_expected in (
+        "test.data/headers/hello.h",
+        "test-1.0.data/data/hello/world/file.txt",
+        "test.dist-info/METADATA",
+        "test-1.0.dist-info/WHEEL",
+    ):
+        assert not_expected not in entries
+
+
+@pytest.mark.parametrize(
+    ("reported", "expected"),
+    [("linux-x86_64", "linux_i686"), ("linux-aarch64", "linux_armv7l")],
+)
+@pytest.mark.skipif(
+    platform.system() != "Linux", reason="Only makes sense to test on Linux"
+)
+def test_platform_linux32(reported, expected, monkeypatch):
+    monkeypatch.setattr(struct, "calcsize", lambda x: 4)
+    dist = setuptools.Distribution()
+    cmd = bdist_wheel(dist)
+    cmd.plat_name = reported
+    cmd.root_is_pure = False
+    _, _, actual = cmd.get_tag()
+    assert actual == expected
+
+
+def test_no_ctypes(monkeypatch) -> None:
+    def _fake_import(name: str, *args, **kwargs):
+        if name == "ctypes":
+            raise ModuleNotFoundError(f"No module named {name}")
+
+        return importlib.__import__(name, *args, **kwargs)
+
+    with suppress(KeyError):
+        monkeypatch.delitem(sys.modules, "wheel.macosx_libfile")
+
+    # Install an importer shim that refuses to load ctypes
+    monkeypatch.setattr(builtins, "__import__", _fake_import)
+    with pytest.raises(ModuleNotFoundError, match="No module named ctypes"):
+        import wheel.macosx_libfile  # noqa: F401
+
+    # Unload and reimport the bdist_wheel command module to make sure it won't try to
+    # import ctypes
+    monkeypatch.delitem(sys.modules, "setuptools.command.bdist_wheel")
+
+    import setuptools.command.bdist_wheel  # noqa: F401
+
+
+def test_dist_info_provided(dummy_dist, monkeypatch, tmp_path):
+    monkeypatch.chdir(dummy_dist)
+    distinfo = tmp_path / "dummy_dist.dist-info"
+
+    distinfo.mkdir()
+    (distinfo / "METADATA").write_text("name: helloworld", encoding="utf-8")
+
+    # We don't control the metadata. According to PEP-517, "The hook MAY also
+    # create other files inside this directory, and a build frontend MUST
+    # preserve".
+    (distinfo / "FOO").write_text("bar", encoding="utf-8")
+
+    bdist_wheel_cmd(bdist_dir=str(tmp_path), dist_info_dir=str(distinfo)).run()
+    expected = {
+        "dummy_dist-1.0.dist-info/FOO",
+        "dummy_dist-1.0.dist-info/RECORD",
+    }
+    with ZipFile("dist/dummy_dist-1.0-py3-none-any.whl") as wf:
+        files_found = set(wf.namelist())
+    # Check that all expected files are there.
+    assert expected - files_found == set()
+    # Make sure there is no accidental egg-info bleeding into the wheel.
+    assert not [path for path in files_found if 'egg-info' in str(path)]
+
+
+def test_allow_grace_period_parent_directory_license(monkeypatch, tmp_path):
+    # Motivation: https://github.com/pypa/setuptools/issues/4892
+    # TODO: Remove this test after deprecation period is over
+    files = {
+        "LICENSE.txt": "parent license",  # <---- the license files are outside
+        "NOTICE.txt": "parent notice",
+        "python": {
+            "pyproject.toml": cleandoc(
+                """
+                [project]
+                name = "test-proj"
+                dynamic = ["version"]      # <---- testing dynamic will not break
+                [tool.setuptools.dynamic]
+                version.file = "VERSION"
+                """
+            ),
+            "setup.cfg": cleandoc(
+                """
+                [metadata]
+                license_files =
+                  ../LICENSE.txt
+                  ../NOTICE.txt
+                """
+            ),
+            "VERSION": "42",
+        },
+    }
+    jaraco.path.build(files, prefix=str(tmp_path))
+    monkeypatch.chdir(tmp_path / "python")
+    msg = "Pattern '../.*.txt' cannot contain '..'"
+    with pytest.warns(SetuptoolsDeprecationWarning, match=msg):
+        bdist_wheel_cmd().run()
+    with ZipFile("dist/test_proj-42-py3-none-any.whl") as wf:
+        files_found = set(wf.namelist())
+        expected_files = {
+            "test_proj-42.dist-info/licenses/LICENSE.txt",
+            "test_proj-42.dist-info/licenses/NOTICE.txt",
+        }
+        assert expected_files <= files_found
+
+        metadata = wf.read("test_proj-42.dist-info/METADATA").decode("utf8")
+        assert "License-File: LICENSE.txt" in metadata
+        assert "License-File: NOTICE.txt" in metadata
diff --git a/setuptools/tests/test_build.py b/setuptools/tests/test_build.py
new file mode 100644
index 0000000000..f0f1d9dcf2
--- /dev/null
+++ b/setuptools/tests/test_build.py
@@ -0,0 +1,33 @@
+from setuptools import Command
+from setuptools.command.build import build
+from setuptools.dist import Distribution
+
+
+def test_distribution_gives_setuptools_build_obj(tmpdir_cwd):
+    """
+    Check that the setuptools Distribution uses the
+    setuptools specific build object.
+    """
+
+    dist = Distribution(
+        dict(
+            script_name='setup.py',
+            script_args=['build'],
+            packages=[],
+            package_data={'': ['path/*']},
+        )
+    )
+    assert isinstance(dist.get_command_obj("build"), build)
+
+
+class Subcommand(Command):
+    """Dummy command to be used in tests"""
+
+    def initialize_options(self):
+        pass
+
+    def finalize_options(self):
+        pass
+
+    def run(self):
+        raise NotImplementedError("just to check if the command runs")
diff --git a/setuptools/tests/test_build_clib.py b/setuptools/tests/test_build_clib.py
new file mode 100644
index 0000000000..b5315df4f6
--- /dev/null
+++ b/setuptools/tests/test_build_clib.py
@@ -0,0 +1,84 @@
+import random
+from unittest import mock
+
+import pytest
+
+from setuptools.command.build_clib import build_clib
+from setuptools.dist import Distribution
+
+from distutils.errors import DistutilsSetupError
+
+
+class TestBuildCLib:
+    @mock.patch('setuptools.command.build_clib.newer_pairwise_group')
+    def test_build_libraries(self, mock_newer):
+        dist = Distribution()
+        cmd = build_clib(dist)
+
+        # this will be a long section, just making sure all
+        # exceptions are properly raised
+        libs = [('example', {'sources': 'broken.c'})]
+        with pytest.raises(DistutilsSetupError):
+            cmd.build_libraries(libs)
+
+        obj_deps = 'some_string'
+        libs = [('example', {'sources': ['source.c'], 'obj_deps': obj_deps})]
+        with pytest.raises(DistutilsSetupError):
+            cmd.build_libraries(libs)
+
+        obj_deps = {'': ''}
+        libs = [('example', {'sources': ['source.c'], 'obj_deps': obj_deps})]
+        with pytest.raises(DistutilsSetupError):
+            cmd.build_libraries(libs)
+
+        obj_deps = {'source.c': ''}
+        libs = [('example', {'sources': ['source.c'], 'obj_deps': obj_deps})]
+        with pytest.raises(DistutilsSetupError):
+            cmd.build_libraries(libs)
+
+        # with that out of the way, let's see if the crude dependency
+        # system works
+        cmd.compiler = mock.MagicMock(spec=cmd.compiler)
+        mock_newer.return_value = ([], [])
+
+        obj_deps = {'': ('global.h',), 'example.c': ('example.h',)}
+        libs = [('example', {'sources': ['example.c'], 'obj_deps': obj_deps})]
+
+        cmd.build_libraries(libs)
+        assert [['example.c', 'global.h', 'example.h']] in mock_newer.call_args[0]
+        assert not cmd.compiler.compile.called
+        assert cmd.compiler.create_static_lib.call_count == 1
+
+        # reset the call numbers so we can test again
+        cmd.compiler.reset_mock()
+
+        mock_newer.return_value = ''  # anything as long as it's not ([],[])
+        cmd.build_libraries(libs)
+        assert cmd.compiler.compile.call_count == 1
+        assert cmd.compiler.create_static_lib.call_count == 1
+
+    @mock.patch('setuptools.command.build_clib.newer_pairwise_group')
+    def test_build_libraries_reproducible(self, mock_newer):
+        dist = Distribution()
+        cmd = build_clib(dist)
+
+        # with that out of the way, let's see if the crude dependency
+        # system works
+        cmd.compiler = mock.MagicMock(spec=cmd.compiler)
+        mock_newer.return_value = ([], [])
+
+        original_sources = ['a-example.c', 'example.c']
+        sources = original_sources
+
+        obj_deps = {'': ('global.h',), 'example.c': ('example.h',)}
+        libs = [('example', {'sources': sources, 'obj_deps': obj_deps})]
+
+        cmd.build_libraries(libs)
+        computed_call_args = mock_newer.call_args[0]
+
+        while sources == original_sources:
+            sources = random.sample(original_sources, len(original_sources))
+        libs = [('example', {'sources': sources, 'obj_deps': obj_deps})]
+
+        cmd.build_libraries(libs)
+        assert computed_call_args == mock_newer.call_args[0]
diff --git a/setuptools/tests/test_build_ext.py b/setuptools/tests/test_build_ext.py
new file mode 100644
index 0000000000..c7b60ac32f
--- /dev/null
+++ b/setuptools/tests/test_build_ext.py
@@ -0,0 +1,293 @@
+from __future__ import annotations
+
+import os
+import sys
+from importlib.util import cache_from_source as _compiled_file_name
+
+import pytest
+from jaraco import path
+
+from setuptools.command.build_ext import build_ext, get_abi3_suffix
+from setuptools.dist import Distribution
+from setuptools.errors import CompileError
+from setuptools.extension import Extension
+
+from . import environment
+from .textwrap import DALS
+
+import distutils.command.build_ext as orig
+from distutils.sysconfig import get_config_var
+
+IS_PYPY = '__pypy__' in sys.builtin_module_names
+
+
+class TestBuildExt:
+    def test_get_ext_filename(self):
+        """
+        Setuptools needs to give back the same
+        result as distutils, even if the fullname
+        is not in ext_map.
+        """
+        dist = Distribution()
+        cmd = build_ext(dist)
+        cmd.ext_map['foo/bar'] = ''
+        res = cmd.get_ext_filename('foo')
+        wanted = orig.build_ext.get_ext_filename(cmd, 'foo')
+        assert res == wanted
+
+    def test_abi3_filename(self):
+        """
+        Filename needs to be loadable by several versions
+        of Python 3 if 'is_abi3' is truthy on Extension()
+        """
+        print(get_abi3_suffix())
+
+        extension = Extension('spam.eggs', ['eggs.c'], py_limited_api=True)
+        dist = Distribution(dict(ext_modules=[extension]))
+        cmd = build_ext(dist)
+        cmd.finalize_options()
+        assert 'spam.eggs' in cmd.ext_map
+        res = cmd.get_ext_filename('spam.eggs')
+
+        if not get_abi3_suffix():
+            assert res.endswith(get_config_var('EXT_SUFFIX'))
+        elif sys.platform == 'win32':
+            assert res.endswith('eggs.pyd')
+        else:
+            assert 'abi3' in res
+
+    def test_ext_suffix_override(self):
+        """
+        SETUPTOOLS_EXT_SUFFIX variable always overrides
+        default extension options.
+        """
+        dist = Distribution()
+        cmd = build_ext(dist)
+        cmd.ext_map['for_abi3'] = ext = Extension(
+            'for_abi3',
+            ['s.c'],
+            # Override shouldn't affect abi3 modules
+            py_limited_api=True,
+        )
+        # Mock value needed to pass tests
+        ext._links_to_dynamic = False
+
+        if not IS_PYPY:
+            expect = cmd.get_ext_filename('for_abi3')
+        else:
+            # PyPy builds do not use ABI3 tag, so they will
+            # also get the overridden suffix.
+            expect = 'for_abi3.test-suffix'
+
+        try:
+            os.environ['SETUPTOOLS_EXT_SUFFIX'] = '.test-suffix'
+            res = cmd.get_ext_filename('normal')
+            assert 'normal.test-suffix' == res
+            res = cmd.get_ext_filename('for_abi3')
+            assert expect == res
+        finally:
+            del os.environ['SETUPTOOLS_EXT_SUFFIX']
+
+    def dist_with_example(self):
+        files = {
+            "src": {"mypkg": {"subpkg": {"ext2.c": ""}}},
+            "c-extensions": {"ext1": {"main.c": ""}},
+        }
+
+        ext1 = Extension("mypkg.ext1", ["c-extensions/ext1/main.c"])
+        ext2 = Extension("mypkg.subpkg.ext2", ["src/mypkg/subpkg/ext2.c"])
+        ext3 = Extension("ext3", ["c-extension/ext3.c"])
+
+        path.build(files)
+        return Distribution({
+            "script_name": "%test%",
+            "ext_modules": [ext1, ext2, ext3],
+            "package_dir": {"": "src"},
+        })
+
+    def test_get_outputs(self, tmpdir_cwd, monkeypatch):
+        monkeypatch.setenv('SETUPTOOLS_EXT_SUFFIX', '.mp3')  # make test OS-independent
+        monkeypatch.setattr('setuptools.command.build_ext.use_stubs', False)
+        dist = self.dist_with_example()
+
+        # Regular build: get_outputs not empty, but get_output_mappings is empty
+        build_ext = dist.get_command_obj("build_ext")
+        build_ext.editable_mode = False
+        build_ext.ensure_finalized()
+        build_lib = build_ext.build_lib.replace(os.sep, "/")
+        outputs = [x.replace(os.sep, "/") for x in build_ext.get_outputs()]
+        assert outputs == [
+            f"{build_lib}/ext3.mp3",
+            f"{build_lib}/mypkg/ext1.mp3",
+            f"{build_lib}/mypkg/subpkg/ext2.mp3",
+        ]
+        assert build_ext.get_output_mapping() == {}
+
+        # Editable build: get_output_mappings should contain everything in get_outputs
+        dist.reinitialize_command("build_ext")
+        build_ext.editable_mode = True
+        build_ext.ensure_finalized()
+        mapping = {
+            k.replace(os.sep, "/"): v.replace(os.sep, "/")
+            for k, v in build_ext.get_output_mapping().items()
+        }
+        assert mapping == {
+            f"{build_lib}/ext3.mp3": "src/ext3.mp3",
+            f"{build_lib}/mypkg/ext1.mp3": "src/mypkg/ext1.mp3",
+            f"{build_lib}/mypkg/subpkg/ext2.mp3": "src/mypkg/subpkg/ext2.mp3",
+        }
+
+    def test_get_output_mapping_with_stub(self, tmpdir_cwd, monkeypatch):
+        monkeypatch.setenv('SETUPTOOLS_EXT_SUFFIX', '.mp3')  # make test OS-independent
+        monkeypatch.setattr('setuptools.command.build_ext.use_stubs', True)
+        dist = self.dist_with_example()
+
+        # Editable build should create compiled stubs (.pyc files only, no .py)
+        build_ext = dist.get_command_obj("build_ext")
+        build_ext.editable_mode = True
+        build_ext.ensure_finalized()
+        for ext in build_ext.extensions:
+            monkeypatch.setattr(ext, "_needs_stub", True)
+
+        build_lib = build_ext.build_lib.replace(os.sep, "/")
+        mapping = {
+            k.replace(os.sep, "/"): v.replace(os.sep, "/")
+            for k, v in build_ext.get_output_mapping().items()
+        }
+
+        def C(file):
+            """Make it possible to do comparisons and tests in a OS-independent way"""
+            return _compiled_file_name(file).replace(os.sep, "/")
+
+        assert mapping == {
+            C(f"{build_lib}/ext3.py"): C("src/ext3.py"),
+            f"{build_lib}/ext3.mp3": "src/ext3.mp3",
+            C(f"{build_lib}/mypkg/ext1.py"): C("src/mypkg/ext1.py"),
+            f"{build_lib}/mypkg/ext1.mp3": "src/mypkg/ext1.mp3",
+            C(f"{build_lib}/mypkg/subpkg/ext2.py"): C("src/mypkg/subpkg/ext2.py"),
+            f"{build_lib}/mypkg/subpkg/ext2.mp3": "src/mypkg/subpkg/ext2.mp3",
+        }
+
+        # Ensure only the compiled stubs are present not the raw .py stub
+        assert f"{build_lib}/mypkg/ext1.py" not in mapping
+        assert f"{build_lib}/mypkg/subpkg/ext2.py" not in mapping
+
+        # Visualize what the cached stub files look like
+        example_stub = C(f"{build_lib}/mypkg/ext1.py")
+        assert example_stub in mapping
+        assert example_stub.startswith(f"{build_lib}/mypkg/__pycache__/ext1")
+        assert example_stub.endswith(".pyc")
+
+
+class TestBuildExtInplace:
+    def get_build_ext_cmd(self, optional: bool, **opts) -> build_ext:
+        files: dict[str, str | dict[str, dict[str, str]]] = {
+            "eggs.c": "#include missingheader.h\n",
+            ".build": {"lib": {}, "tmp": {}},
+        }
+        path.build(files)
+        extension = Extension('spam.eggs', ['eggs.c'], optional=optional)
+        dist = Distribution(dict(ext_modules=[extension]))
+        dist.script_name = 'setup.py'
+        cmd = build_ext(dist)
+        vars(cmd).update(build_lib=".build/lib", build_temp=".build/tmp", **opts)
+        cmd.ensure_finalized()
+        return cmd
+
+    def get_log_messages(self, caplog, capsys):
+        """
+        Historically, distutils "logged" by printing to sys.std*.
+        Later versions adopted the logging framework. Grab
+        messages regardless of how they were captured.
+        """
+        std = capsys.readouterr()
+        return std.out.splitlines() + std.err.splitlines() + caplog.messages
+
+    def test_optional(self, tmpdir_cwd, caplog, capsys):
+        """
+        If optional extensions fail to build, setuptools should show the error
+        in the logs but not fail to build
+        """
+        cmd = self.get_build_ext_cmd(optional=True, inplace=True)
+        cmd.run()
+        assert any(
+            'build_ext: building extension "spam.eggs" failed'
+            for msg in self.get_log_messages(caplog, capsys)
+        )
+        # No compile error exception should be raised
+
+    def test_non_optional(self, tmpdir_cwd):
+        # Non-optional extensions should raise an exception
+        cmd = self.get_build_ext_cmd(optional=False, inplace=True)
+        with pytest.raises(CompileError):
+            cmd.run()
+
+
+def test_build_ext_config_handling(tmpdir_cwd):
+    files = {
+        'setup.py': DALS(
+            """
+            from setuptools import Extension, setup
+            setup(
+                name='foo',
+                version='0.0.0',
+                ext_modules=[Extension('foo', ['foo.c'])],
+            )
+            """
+        ),
+        'foo.c': DALS(
+            """
+            #include "Python.h"
+
+            #if PY_MAJOR_VERSION >= 3
+
+            static struct PyModuleDef moduledef = {
+                    PyModuleDef_HEAD_INIT,
+                    "foo",
+                    NULL,
+                    0,
+                    NULL,
+                    NULL,
+                    NULL,
+                    NULL,
+                    NULL
+            };
+
+            #define INITERROR return NULL
+
+            PyMODINIT_FUNC PyInit_foo(void)
+
+            #else
+
+            #define INITERROR return
+
+            void initfoo(void)
+
+            #endif
+            {
+            #if PY_MAJOR_VERSION >= 3
+                PyObject *module = PyModule_Create(&moduledef);
+            #else
+                PyObject *module = Py_InitModule("extension", NULL);
+            #endif
+                if (module == NULL)
+                    INITERROR;
+            #if PY_MAJOR_VERSION >= 3
+                return module;
+            #endif
+            }
+            """
+        ),
+        'setup.cfg': DALS(
+            """
+            [build]
+            build_base = foo_build
+            """
+        ),
+    }
+    path.build(files)
+    code, (stdout, stderr) = environment.run_setup_py(
+        cmd=['build'],
+        data_stream=(0, 2),
+    )
+    assert code == 0, f'\nSTDOUT:\n{stdout}\nSTDERR:\n{stderr}'
diff --git a/setuptools/tests/test_build_meta.py b/setuptools/tests/test_build_meta.py
new file mode 100644
index 0000000000..57162fd6af
--- /dev/null
+++ b/setuptools/tests/test_build_meta.py
@@ -0,0 +1,959 @@
+import contextlib
+import importlib
+import os
+import re
+import shutil
+import signal
+import sys
+import tarfile
+import warnings
+from concurrent import futures
+from pathlib import Path
+from typing import Any, Callable
+from zipfile import ZipFile
+
+import pytest
+from jaraco import path
+from packaging.requirements import Requirement
+
+from setuptools.warnings import SetuptoolsDeprecationWarning
+
+from .textwrap import DALS
+
+SETUP_SCRIPT_STUB = "__import__('setuptools').setup()"
+
+
+TIMEOUT = int(os.getenv("TIMEOUT_BACKEND_TEST", "180"))  # in seconds
+IS_PYPY = '__pypy__' in sys.builtin_module_names
+
+
+pytestmark = pytest.mark.skipif(
+    sys.platform == "win32" and IS_PYPY,
+    reason="The combination of PyPy + Windows + pytest-xdist + ProcessPoolExecutor "
+    "is flaky and problematic",
+)
+
+
+class BuildBackendBase:
+    def __init__(self, cwd='.', env=None, backend_name='setuptools.build_meta'):
+        self.cwd = cwd
+        self.env = env or {}
+        self.backend_name = backend_name
+
+
+class BuildBackend(BuildBackendBase):
+    """PEP 517 Build Backend"""
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.pool = futures.ProcessPoolExecutor(max_workers=1)
+
+    def __getattr__(self, name: str) -> Callable[..., Any]:
+        """Handles arbitrary function invocations on the build backend."""
+
+        def method(*args, **kw):
+            root = os.path.abspath(self.cwd)
+            caller = BuildBackendCaller(root, self.env, self.backend_name)
+            pid = None
+            try:
+                pid = self.pool.submit(os.getpid).result(TIMEOUT)
+                return self.pool.submit(caller, name, *args, **kw).result(TIMEOUT)
+            except futures.TimeoutError:
+                self.pool.shutdown(wait=False)  # doesn't stop already running processes
+                self._kill(pid)
+                pytest.xfail(f"Backend did not respond before timeout ({TIMEOUT} s)")
+            except (futures.process.BrokenProcessPool, MemoryError, OSError):
+                if IS_PYPY:
+                    pytest.xfail("PyPy frequently fails tests with ProcessPoolExector")
+                raise
+
+        return method
+
+    def _kill(self, pid):
+        if pid is None:
+            return
+        with contextlib.suppress(ProcessLookupError, OSError):
+            os.kill(pid, signal.SIGTERM if os.name == "nt" else signal.SIGKILL)
+
+
+class BuildBackendCaller(BuildBackendBase):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+        (self.backend_name, _, self.backend_obj) = self.backend_name.partition(':')
+
+    def __call__(self, name, *args, **kw):
+        """Handles arbitrary function invocations on the build backend."""
+        os.chdir(self.cwd)
+        os.environ.update(self.env)
+        mod = importlib.import_module(self.backend_name)
+
+        if self.backend_obj:
+            backend = getattr(mod, self.backend_obj)
+        else:
+            backend = mod
+
+        return getattr(backend, name)(*args, **kw)
+
+
+defns = [
+    {  # simple setup.py script
+        'setup.py': DALS(
+            """
+            __import__('setuptools').setup(
+                name='foo',
+                version='0.0.0',
+                py_modules=['hello'],
+                setup_requires=['six'],
+            )
+            """
+        ),
+        'hello.py': DALS(
+            """
+            def run():
+                print('hello')
+            """
+        ),
+    },
+    {  # setup.py that relies on __name__
+        'setup.py': DALS(
+            """
+            assert __name__ == '__main__'
+            __import__('setuptools').setup(
+                name='foo',
+                version='0.0.0',
+                py_modules=['hello'],
+                setup_requires=['six'],
+            )
+            """
+        ),
+        'hello.py': DALS(
+            """
+            def run():
+                print('hello')
+            """
+        ),
+    },
+    {  # setup.py script that runs arbitrary code
+        'setup.py': DALS(
+            """
+            variable = True
+            def function():
+                return variable
+            assert variable
+            __import__('setuptools').setup(
+                name='foo',
+                version='0.0.0',
+                py_modules=['hello'],
+                setup_requires=['six'],
+            )
+            """
+        ),
+        'hello.py': DALS(
+            """
+            def run():
+                print('hello')
+            """
+        ),
+    },
+    {  # setup.py script that constructs temp files to be included in the distribution
+        'setup.py': DALS(
+            """
+            # Some packages construct files on the fly, include them in the package,
+            # and immediately remove them after `setup()` (e.g. pybind11==2.9.1).
+            # Therefore, we cannot use `distutils.core.run_setup(..., stop_after=...)`
+            # to obtain a distribution object first, and then run the distutils
+            # commands later, because these files will be removed in the meantime.
+
+            with open('world.py', 'w', encoding="utf-8") as f:
+                f.write('x = 42')
+
+            try:
+                __import__('setuptools').setup(
+                    name='foo',
+                    version='0.0.0',
+                    py_modules=['world'],
+                    setup_requires=['six'],
+                )
+            finally:
+                # Some packages will clean temporary files
+                __import__('os').unlink('world.py')
+            """
+        ),
+    },
+    {  # setup.cfg only
+        'setup.cfg': DALS(
+            """
+        [metadata]
+        name = foo
+        version = 0.0.0
+
+        [options]
+        py_modules=hello
+        setup_requires=six
+        """
+        ),
+        'hello.py': DALS(
+            """
+        def run():
+            print('hello')
+        """
+        ),
+    },
+    {  # setup.cfg and setup.py
+        'setup.cfg': DALS(
+            """
+        [metadata]
+        name = foo
+        version = 0.0.0
+
+        [options]
+        py_modules=hello
+        setup_requires=six
+        """
+        ),
+        'setup.py': "__import__('setuptools').setup()",
+        'hello.py': DALS(
+            """
+        def run():
+            print('hello')
+        """
+        ),
+    },
+]
+
+
+class TestBuildMetaBackend:
+    backend_name = 'setuptools.build_meta'
+
+    def get_build_backend(self):
+        return BuildBackend(backend_name=self.backend_name)
+
+    @pytest.fixture(params=defns)
+    def build_backend(self, tmpdir, request):
+        path.build(request.param, prefix=str(tmpdir))
+        with tmpdir.as_cwd():
+            yield self.get_build_backend()
+
+    def test_get_requires_for_build_wheel(self, build_backend):
+        actual = build_backend.get_requires_for_build_wheel()
+        expected = ['six']
+        assert sorted(actual) == sorted(expected)
+
+    def test_get_requires_for_build_sdist(self, build_backend):
+        actual = build_backend.get_requires_for_build_sdist()
+        expected = ['six']
+        assert sorted(actual) == sorted(expected)
+
+    def test_build_wheel(self, build_backend):
+        dist_dir = os.path.abspath('pip-wheel')
+        os.makedirs(dist_dir)
+        wheel_name = build_backend.build_wheel(dist_dir)
+
+        wheel_file = os.path.join(dist_dir, wheel_name)
+        assert os.path.isfile(wheel_file)
+
+        # Temporary files should be removed
+        assert not os.path.isfile('world.py')
+
+        with ZipFile(wheel_file) as zipfile:
+            wheel_contents = set(zipfile.namelist())
+
+        # Each one of the examples have a single module
+        # that should be included in the distribution
+        python_scripts = (f for f in wheel_contents if f.endswith('.py'))
+        modules = [f for f in python_scripts if not f.endswith('setup.py')]
+        assert len(modules) == 1
+
+    @pytest.mark.parametrize('build_type', ('wheel', 'sdist'))
+    def test_build_with_existing_file_present(self, build_type, tmpdir_cwd):
+        # Building a sdist/wheel should still succeed if there's
+        # already a sdist/wheel in the destination directory.
+        files = {
+            'setup.py': "from setuptools import setup\nsetup()",
+            'VERSION': "0.0.1",
+            'setup.cfg': DALS(
+                """
+                [metadata]
+                name = foo
+                version = file: VERSION
+                """
+            ),
+            'pyproject.toml': DALS(
+                """
+                [build-system]
+                requires = ["setuptools", "wheel"]
+                build-backend = "setuptools.build_meta"
+                """
+            ),
+        }
+
+        path.build(files)
+
+        dist_dir = os.path.abspath('preexisting-' + build_type)
+
+        build_backend = self.get_build_backend()
+        build_method = getattr(build_backend, 'build_' + build_type)
+
+        # Build a first sdist/wheel.
+        # Note: this also check the destination directory is
+        # successfully created if it does not exist already.
+        first_result = build_method(dist_dir)
+
+        # Change version.
+        with open("VERSION", "wt", encoding="utf-8") as version_file:
+            version_file.write("0.0.2")
+
+        # Build a *second* sdist/wheel.
+        second_result = build_method(dist_dir)
+
+        assert os.path.isfile(os.path.join(dist_dir, first_result))
+        assert first_result != second_result
+
+        # And if rebuilding the exact same sdist/wheel?
+        open(os.path.join(dist_dir, second_result), 'wb').close()
+        third_result = build_method(dist_dir)
+        assert third_result == second_result
+        assert os.path.getsize(os.path.join(dist_dir, third_result)) > 0
+
+    @pytest.mark.parametrize("setup_script", [None, SETUP_SCRIPT_STUB])
+    def test_build_with_pyproject_config(self, tmpdir, setup_script):
+        files = {
+            'pyproject.toml': DALS(
+                """
+                [build-system]
+                requires = ["setuptools", "wheel"]
+                build-backend = "setuptools.build_meta"
+
+                [project]
+                name = "foo"
+                license = {text = "MIT"}
+                description = "This is a Python package"
+                dynamic = ["version", "readme"]
+                classifiers = [
+                    "Development Status :: 5 - Production/Stable",
+                    "Intended Audience :: Developers"
+                ]
+                urls = {Homepage = "http://github.com"}
+                dependencies = [
+                    "appdirs",
+                ]
+
+                [project.optional-dependencies]
+                all = [
+                    "tomli>=1",
+                    "pyscaffold>=4,<5",
+                    'importlib; python_version == "2.6"',
+                ]
+
+                [project.scripts]
+                foo = "foo.cli:main"
+
+                [tool.setuptools]
+                zip-safe = false
+                package-dir = {"" = "src"}
+                packages = {find = {where = ["src"]}}
+                license-files = ["LICENSE*"]
+
+                [tool.setuptools.dynamic]
+                version = {attr = "foo.__version__"}
+                readme = {file = "README.rst"}
+
+                [tool.distutils.sdist]
+                formats = "gztar"
+                """
+            ),
+            "MANIFEST.in": DALS(
+                """
+                global-include *.py *.txt
+                global-exclude *.py[cod]
+                """
+            ),
+            "README.rst": "This is a ``README``",
+            "LICENSE.txt": "---- placeholder MIT license ----",
+            "src": {
+                "foo": {
+                    "__init__.py": "__version__ = '0.1'",
+                    "__init__.pyi": "__version__: str",
+                    "cli.py": "def main(): print('hello world')",
+                    "data.txt": "def main(): print('hello world')",
+                    "py.typed": "",
+                }
+            },
+        }
+        if setup_script:
+            files["setup.py"] = setup_script
+
+        build_backend = self.get_build_backend()
+        with tmpdir.as_cwd():
+            path.build(files)
+            msgs = [
+                "'tool.setuptools.license-files' is deprecated in favor of 'project.license-files'",
+                "`project.license` as a TOML table is deprecated",
+            ]
+            with warnings.catch_warnings():
+                for msg in msgs:
+                    warnings.filterwarnings("ignore", msg, SetuptoolsDeprecationWarning)
+                sdist_path = build_backend.build_sdist("temp")
+                wheel_file = build_backend.build_wheel("temp")
+
+        with tarfile.open(os.path.join(tmpdir, "temp", sdist_path)) as tar:
+            sdist_contents = set(tar.getnames())
+
+        with ZipFile(os.path.join(tmpdir, "temp", wheel_file)) as zipfile:
+            wheel_contents = set(zipfile.namelist())
+            metadata = str(zipfile.read("foo-0.1.dist-info/METADATA"), "utf-8")
+            license = str(
+                zipfile.read("foo-0.1.dist-info/licenses/LICENSE.txt"), "utf-8"
+            )
+            epoints = str(zipfile.read("foo-0.1.dist-info/entry_points.txt"), "utf-8")
+
+        assert sdist_contents - {"foo-0.1/setup.py"} == {
+            'foo-0.1',
+            'foo-0.1/LICENSE.txt',
+            'foo-0.1/MANIFEST.in',
+            'foo-0.1/PKG-INFO',
+            'foo-0.1/README.rst',
+            'foo-0.1/pyproject.toml',
+            'foo-0.1/setup.cfg',
+            'foo-0.1/src',
+            'foo-0.1/src/foo',
+            'foo-0.1/src/foo/__init__.py',
+            'foo-0.1/src/foo/__init__.pyi',
+            'foo-0.1/src/foo/cli.py',
+            'foo-0.1/src/foo/data.txt',
+            'foo-0.1/src/foo/py.typed',
+            'foo-0.1/src/foo.egg-info',
+            'foo-0.1/src/foo.egg-info/PKG-INFO',
+            'foo-0.1/src/foo.egg-info/SOURCES.txt',
+            'foo-0.1/src/foo.egg-info/dependency_links.txt',
+            'foo-0.1/src/foo.egg-info/entry_points.txt',
+            'foo-0.1/src/foo.egg-info/requires.txt',
+            'foo-0.1/src/foo.egg-info/top_level.txt',
+            'foo-0.1/src/foo.egg-info/not-zip-safe',
+        }
+        assert wheel_contents == {
+            "foo/__init__.py",
+            "foo/__init__.pyi",  # include type information by default
+            "foo/cli.py",
+            "foo/data.txt",  # include_package_data defaults to True
+            "foo/py.typed",  # include type information by default
+            "foo-0.1.dist-info/licenses/LICENSE.txt",
+            "foo-0.1.dist-info/METADATA",
+            "foo-0.1.dist-info/WHEEL",
+            "foo-0.1.dist-info/entry_points.txt",
+            "foo-0.1.dist-info/top_level.txt",
+            "foo-0.1.dist-info/RECORD",
+        }
+        assert license == "---- placeholder MIT license ----"
+
+        for line in (
+            "Summary: This is a Python package",
+            "License: MIT",
+            "License-File: LICENSE.txt",
+            "Classifier: Intended Audience :: Developers",
+            "Requires-Dist: appdirs",
+            "Requires-Dist: " + str(Requirement('tomli>=1 ; extra == "all"')),
+            "Requires-Dist: "
+            + str(Requirement('importlib; python_version=="2.6" and extra =="all"')),
+        ):
+            assert line in metadata, (line, metadata)
+
+        assert metadata.strip().endswith("This is a ``README``")
+        assert epoints.strip() == "[console_scripts]\nfoo = foo.cli:main"
+
+    def test_static_metadata_in_pyproject_config(self, tmpdir):
+        # Make sure static metadata in pyproject.toml is not overwritten by setup.py
+        # as required by PEP 621
+        files = {
+            'pyproject.toml': DALS(
+                """
+                [build-system]
+                requires = ["setuptools", "wheel"]
+                build-backend = "setuptools.build_meta"
+
+                [project]
+                name = "foo"
+                description = "This is a Python package"
+                version = "42"
+                dependencies = ["six"]
+                """
+            ),
+            'hello.py': DALS(
+                """
+                def run():
+                    print('hello')
+                """
+            ),
+            'setup.py': DALS(
+                """
+                __import__('setuptools').setup(
+                    name='bar',
+                    version='13',
+                )
+                """
+            ),
+        }
+        build_backend = self.get_build_backend()
+        with tmpdir.as_cwd():
+            path.build(files)
+            sdist_path = build_backend.build_sdist("temp")
+            wheel_file = build_backend.build_wheel("temp")
+
+        assert (tmpdir / "temp/foo-42.tar.gz").exists()
+        assert (tmpdir / "temp/foo-42-py3-none-any.whl").exists()
+        assert not (tmpdir / "temp/bar-13.tar.gz").exists()
+        assert not (tmpdir / "temp/bar-42.tar.gz").exists()
+        assert not (tmpdir / "temp/foo-13.tar.gz").exists()
+        assert not (tmpdir / "temp/bar-13-py3-none-any.whl").exists()
+        assert not (tmpdir / "temp/bar-42-py3-none-any.whl").exists()
+        assert not (tmpdir / "temp/foo-13-py3-none-any.whl").exists()
+
+        with tarfile.open(os.path.join(tmpdir, "temp", sdist_path)) as tar:
+            pkg_info = str(tar.extractfile('foo-42/PKG-INFO').read(), "utf-8")
+            members = tar.getnames()
+            assert "bar-13/PKG-INFO" not in members
+
+        with ZipFile(os.path.join(tmpdir, "temp", wheel_file)) as zipfile:
+            metadata = str(zipfile.read("foo-42.dist-info/METADATA"), "utf-8")
+            members = zipfile.namelist()
+            assert "bar-13.dist-info/METADATA" not in members
+
+        for file in pkg_info, metadata:
+            for line in ("Name: foo", "Version: 42"):
+                assert line in file
+            for line in ("Name: bar", "Version: 13"):
+                assert line not in file
+
+    def test_build_sdist(self, build_backend):
+        dist_dir = os.path.abspath('pip-sdist')
+        os.makedirs(dist_dir)
+        sdist_name = build_backend.build_sdist(dist_dir)
+
+        assert os.path.isfile(os.path.join(dist_dir, sdist_name))
+
+    def test_prepare_metadata_for_build_wheel(self, build_backend):
+        dist_dir = os.path.abspath('pip-dist-info')
+        os.makedirs(dist_dir)
+
+        dist_info = build_backend.prepare_metadata_for_build_wheel(dist_dir)
+
+        assert os.path.isfile(os.path.join(dist_dir, dist_info, 'METADATA'))
+
+    def test_prepare_metadata_inplace(self, build_backend):
+        """
+        Some users might pass metadata_directory pre-populated with `.tox` or `.venv`.
+        See issue #3523.
+        """
+        for pre_existing in [
+            ".tox/python/lib/python3.10/site-packages/attrs-22.1.0.dist-info",
+            ".tox/python/lib/python3.10/site-packages/autocommand-2.2.1.dist-info",
+            ".nox/python/lib/python3.10/site-packages/build-0.8.0.dist-info",
+            ".venv/python3.10/site-packages/click-8.1.3.dist-info",
+            "venv/python3.10/site-packages/distlib-0.3.5.dist-info",
+            "env/python3.10/site-packages/docutils-0.19.dist-info",
+        ]:
+            os.makedirs(pre_existing, exist_ok=True)
+        dist_info = build_backend.prepare_metadata_for_build_wheel(".")
+        assert os.path.isfile(os.path.join(dist_info, 'METADATA'))
+
+    def test_build_sdist_explicit_dist(self, build_backend):
+        # explicitly specifying the dist folder should work
+        # the folder sdist_directory and the ``--dist-dir`` can be the same
+        dist_dir = os.path.abspath('dist')
+        sdist_name = build_backend.build_sdist(dist_dir)
+        assert os.path.isfile(os.path.join(dist_dir, sdist_name))
+
+    def test_build_sdist_version_change(self, build_backend):
+        sdist_into_directory = os.path.abspath("out_sdist")
+        os.makedirs(sdist_into_directory)
+
+        sdist_name = build_backend.build_sdist(sdist_into_directory)
+        assert os.path.isfile(os.path.join(sdist_into_directory, sdist_name))
+
+        # if the setup.py changes subsequent call of the build meta
+        # should still succeed, given the
+        # sdist_directory the frontend specifies is empty
+        setup_loc = os.path.abspath("setup.py")
+        if not os.path.exists(setup_loc):
+            setup_loc = os.path.abspath("setup.cfg")
+
+        with open(setup_loc, 'rt', encoding="utf-8") as file_handler:
+            content = file_handler.read()
+        with open(setup_loc, 'wt', encoding="utf-8") as file_handler:
+            file_handler.write(content.replace("version='0.0.0'", "version='0.0.1'"))
+
+        shutil.rmtree(sdist_into_directory)
+        os.makedirs(sdist_into_directory)
+
+        sdist_name = build_backend.build_sdist("out_sdist")
+        assert os.path.isfile(os.path.join(os.path.abspath("out_sdist"), sdist_name))
+
+    def test_build_sdist_pyproject_toml_exists(self, tmpdir_cwd):
+        files = {
+            'setup.py': DALS(
+                """
+                __import__('setuptools').setup(
+                    name='foo',
+                    version='0.0.0',
+                    py_modules=['hello']
+                )"""
+            ),
+            'hello.py': '',
+            'pyproject.toml': DALS(
+                """
+                [build-system]
+                requires = ["setuptools", "wheel"]
+                build-backend = "setuptools.build_meta"
+                """
+            ),
+        }
+        path.build(files)
+        build_backend = self.get_build_backend()
+        targz_path = build_backend.build_sdist("temp")
+        with tarfile.open(os.path.join("temp", targz_path)) as tar:
+            assert any('pyproject.toml' in name for name in tar.getnames())
+
+    def test_build_sdist_setup_py_exists(self, tmpdir_cwd):
+        # If build_sdist is called from a script other than setup.py,
+        # ensure setup.py is included
+        path.build(defns[0])
+
+        build_backend = self.get_build_backend()
+        targz_path = build_backend.build_sdist("temp")
+        with tarfile.open(os.path.join("temp", targz_path)) as tar:
+            assert any('setup.py' in name for name in tar.getnames())
+
+    def test_build_sdist_setup_py_manifest_excluded(self, tmpdir_cwd):
+        # Ensure that MANIFEST.in can exclude setup.py
+        files = {
+            'setup.py': DALS(
+                """
+        __import__('setuptools').setup(
+            name='foo',
+            version='0.0.0',
+            py_modules=['hello']
+        )"""
+            ),
+            'hello.py': '',
+            'MANIFEST.in': DALS(
+                """
+        exclude setup.py
+        """
+            ),
+        }
+
+        path.build(files)
+
+        build_backend = self.get_build_backend()
+        targz_path = build_backend.build_sdist("temp")
+        with tarfile.open(os.path.join("temp", targz_path)) as tar:
+            assert not any('setup.py' in name for name in tar.getnames())
+
+    def test_build_sdist_builds_targz_even_if_zip_indicated(self, tmpdir_cwd):
+        files = {
+            'setup.py': DALS(
+                """
+                __import__('setuptools').setup(
+                    name='foo',
+                    version='0.0.0',
+                    py_modules=['hello']
+                )"""
+            ),
+            'hello.py': '',
+            'setup.cfg': DALS(
+                """
+                [sdist]
+                formats=zip
+                """
+            ),
+        }
+
+        path.build(files)
+
+        build_backend = self.get_build_backend()
+        build_backend.build_sdist("temp")
+
+    _relative_path_import_files = {
+        'setup.py': DALS(
+            """
+            __import__('setuptools').setup(
+                name='foo',
+                version=__import__('hello').__version__,
+                py_modules=['hello']
+            )"""
+        ),
+        'hello.py': '__version__ = "0.0.0"',
+        'setup.cfg': DALS(
+            """
+            [sdist]
+            formats=zip
+            """
+        ),
+    }
+
+    def test_build_sdist_relative_path_import(self, tmpdir_cwd):
+        path.build(self._relative_path_import_files)
+        build_backend = self.get_build_backend()
+        with pytest.raises(ImportError, match="^No module named 'hello'$"):
+            build_backend.build_sdist("temp")
+
+    _simple_pyproject_example = {
+        "pyproject.toml": DALS(
+            """
+            [project]
+            name = "proj"
+            version = "42"
+            """
+        ),
+        "src": {"proj": {"__init__.py": ""}},
+    }
+
+    def _assert_link_tree(self, parent_dir):
+        """All files in the directory should be either links or hard links"""
+        files = list(Path(parent_dir).glob("**/*"))
+        assert files  # Should not be empty
+        for file in files:
+            assert file.is_symlink() or os.stat(file).st_nlink > 0
+
+    def test_editable_without_config_settings(self, tmpdir_cwd):
+        """
+        Sanity check to ensure tests with --mode=strict are different from the ones
+        without --mode.
+
+        --mode=strict should create a local directory with a package tree.
+        The directory should not get created otherwise.
+        """
+        path.build(self._simple_pyproject_example)
+        build_backend = self.get_build_backend()
+        assert not Path("build").exists()
+        build_backend.build_editable("temp")
+        assert not Path("build").exists()
+
+    def test_build_wheel_inplace(self, tmpdir_cwd):
+        config_settings = {"--build-option": ["build_ext", "--inplace"]}
+        path.build(self._simple_pyproject_example)
+        build_backend = self.get_build_backend()
+        assert not Path("build").exists()
+        Path("build").mkdir()
+        build_backend.prepare_metadata_for_build_wheel("build", config_settings)
+        build_backend.build_wheel("build", config_settings)
+        assert Path("build/proj-42-py3-none-any.whl").exists()
+
+    @pytest.mark.parametrize("config_settings", [{"editable-mode": "strict"}])
+    def test_editable_with_config_settings(self, tmpdir_cwd, config_settings):
+        path.build({**self._simple_pyproject_example, '_meta': {}})
+        assert not Path("build").exists()
+        build_backend = self.get_build_backend()
+        build_backend.prepare_metadata_for_build_editable("_meta", config_settings)
+        build_backend.build_editable("temp", config_settings, "_meta")
+        self._assert_link_tree(next(Path("build").glob("__editable__.*")))
+
+    @pytest.mark.parametrize(
+        ("setup_literal", "requirements"),
+        [
+            ("'foo'", ['foo']),
+            ("['foo']", ['foo']),
+            (r"'foo\n'", ['foo']),
+            (r"'foo\n\n'", ['foo']),
+            ("['foo', 'bar']", ['foo', 'bar']),
+            (r"'# Has a comment line\nfoo'", ['foo']),
+            (r"'foo # Has an inline comment'", ['foo']),
+            (r"'foo \\\n >=3.0'", ['foo>=3.0']),
+            (r"'foo\nbar'", ['foo', 'bar']),
+            (r"'foo\nbar\n'", ['foo', 'bar']),
+            (r"['foo\n', 'bar\n']", ['foo', 'bar']),
+        ],
+    )
+    @pytest.mark.parametrize('use_wheel', [True, False])
+    def test_setup_requires(self, setup_literal, requirements, use_wheel, tmpdir_cwd):
+        files = {
+            'setup.py': DALS(
+                """
+                from setuptools import setup
+
+                setup(
+                    name="qux",
+                    version="0.0.0",
+                    py_modules=["hello"],
+                    setup_requires={setup_literal},
+                )
+            """
+            ).format(setup_literal=setup_literal),
+            'hello.py': DALS(
+                """
+            def run():
+                print('hello')
+            """
+            ),
+        }
+
+        path.build(files)
+
+        build_backend = self.get_build_backend()
+
+        if use_wheel:
+            get_requires = build_backend.get_requires_for_build_wheel
+        else:
+            get_requires = build_backend.get_requires_for_build_sdist
+
+        # Ensure that the build requirements are properly parsed
+        expected = sorted(requirements)
+        actual = get_requires()
+
+        assert expected == sorted(actual)
+
+    def test_setup_requires_with_auto_discovery(self, tmpdir_cwd):
+        # Make sure patches introduced to retrieve setup_requires don't accidentally
+        # activate auto-discovery and cause problems due to the incomplete set of
+        # attributes passed to MinimalDistribution
+        files = {
+            'pyproject.toml': DALS(
+                """
+                [project]
+                name = "proj"
+                version = "42"
+            """
+            ),
+            "setup.py": DALS(
+                """
+                __import__('setuptools').setup(
+                    setup_requires=["foo"],
+                    py_modules = ["hello", "world"]
+                )
+            """
+            ),
+            'hello.py': "'hello'",
+            'world.py': "'world'",
+        }
+        path.build(files)
+        build_backend = self.get_build_backend()
+        setup_requires = build_backend.get_requires_for_build_wheel()
+        assert setup_requires == ["foo"]
+
+    def test_dont_install_setup_requires(self, tmpdir_cwd):
+        files = {
+            'setup.py': DALS(
+                """
+                        from setuptools import setup
+
+                        setup(
+                            name="qux",
+                            version="0.0.0",
+                            py_modules=["hello"],
+                            setup_requires=["does-not-exist >99"],
+                        )
+                    """
+            ),
+            'hello.py': DALS(
+                """
+                    def run():
+                        print('hello')
+                    """
+            ),
+        }
+
+        path.build(files)
+
+        build_backend = self.get_build_backend()
+
+        dist_dir = os.path.abspath('pip-dist-info')
+        os.makedirs(dist_dir)
+
+        # does-not-exist can't be satisfied, so if it attempts to install
+        # setup_requires, it will fail.
+        build_backend.prepare_metadata_for_build_wheel(dist_dir)
+
+    _sys_argv_0_passthrough = {
+        'setup.py': DALS(
+            """
+            import os
+            import sys
+
+            __import__('setuptools').setup(
+                name='foo',
+                version='0.0.0',
+            )
+
+            sys_argv = os.path.abspath(sys.argv[0])
+            file_path = os.path.abspath('setup.py')
+            assert sys_argv == file_path
+            """
+        )
+    }
+
+    def test_sys_argv_passthrough(self, tmpdir_cwd):
+        path.build(self._sys_argv_0_passthrough)
+        build_backend = self.get_build_backend()
+        with pytest.raises(AssertionError):
+            build_backend.build_sdist("temp")
+
+    _setup_py_file_abspath = {
+        'setup.py': DALS(
+            """
+            import os
+            assert os.path.isabs(__file__)
+            __import__('setuptools').setup(
+                name='foo',
+                version='0.0.0',
+                py_modules=['hello'],
+                setup_requires=['six'],
+            )
+            """
+        )
+    }
+
+    def test_setup_py_file_abspath(self, tmpdir_cwd):
+        path.build(self._setup_py_file_abspath)
+        build_backend = self.get_build_backend()
+        build_backend.build_sdist("temp")
+
+    @pytest.mark.parametrize('build_hook', ('build_sdist', 'build_wheel'))
+    def test_build_with_empty_setuppy(self, build_backend, build_hook):
+        files = {'setup.py': ''}
+        path.build(files)
+
+        msg = re.escape('No distribution was found.')
+        with pytest.raises(ValueError, match=msg):
+            getattr(build_backend, build_hook)("temp")
+
+
+class TestBuildMetaLegacyBackend(TestBuildMetaBackend):
+    backend_name = 'setuptools.build_meta:__legacy__'
+
+    # build_meta_legacy-specific tests
+    def test_build_sdist_relative_path_import(self, tmpdir_cwd):
+        # This must fail in build_meta, but must pass in build_meta_legacy
+        path.build(self._relative_path_import_files)
+
+        build_backend = self.get_build_backend()
+        build_backend.build_sdist("temp")
+
+    def test_sys_argv_passthrough(self, tmpdir_cwd):
+        path.build(self._sys_argv_0_passthrough)
+
+        build_backend = self.get_build_backend()
+        build_backend.build_sdist("temp")
+
+
+@pytest.mark.filterwarnings("ignore::setuptools.SetuptoolsDeprecationWarning")
+def test_sys_exit_0_in_setuppy(monkeypatch, tmp_path):
+    """Setuptools should be resilient to setup.py with ``sys.exit(0)`` (#3973)."""
+    monkeypatch.chdir(tmp_path)
+    setuppy = """
+        import sys, setuptools
+        setuptools.setup(name='foo', version='0.0.0')
+        sys.exit(0)
+        """
+    (tmp_path / "setup.py").write_text(DALS(setuppy), encoding="utf-8")
+    backend = BuildBackend(backend_name="setuptools.build_meta")
+    assert backend.get_requires_for_build_wheel() == []
+
+
+def test_system_exit_in_setuppy(monkeypatch, tmp_path):
+    monkeypatch.chdir(tmp_path)
+    setuppy = "import sys; sys.exit('some error')"
+    (tmp_path / "setup.py").write_text(setuppy, encoding="utf-8")
+    with pytest.raises(SystemExit, match="some error"):
+        backend = BuildBackend(backend_name="setuptools.build_meta")
+        backend.get_requires_for_build_wheel()
diff --git a/setuptools/tests/test_build_py.py b/setuptools/tests/test_build_py.py
new file mode 100644
index 0000000000..1e3a660833
--- /dev/null
+++ b/setuptools/tests/test_build_py.py
@@ -0,0 +1,480 @@
+import os
+import shutil
+import stat
+import warnings
+from pathlib import Path
+from unittest.mock import Mock
+
+import jaraco.path
+import pytest
+
+from setuptools import SetuptoolsDeprecationWarning
+from setuptools.dist import Distribution
+
+from .textwrap import DALS
+
+
+def test_directories_in_package_data_glob(tmpdir_cwd):
+    """
+    Directories matching the glob in package_data should
+    not be included in the package data.
+
+    Regression test for #261.
+    """
+    dist = Distribution(
+        dict(
+            script_name='setup.py',
+            script_args=['build_py'],
+            packages=[''],
+            package_data={'': ['path/*']},
+        )
+    )
+    os.makedirs('path/subpath')
+    dist.parse_command_line()
+    dist.run_commands()
+
+
+def test_recursive_in_package_data_glob(tmpdir_cwd):
+    """
+    Files matching recursive globs (**) in package_data should
+    be included in the package data.
+
+    #1806
+    """
+    dist = Distribution(
+        dict(
+            script_name='setup.py',
+            script_args=['build_py'],
+            packages=[''],
+            package_data={'': ['path/**/data']},
+        )
+    )
+    os.makedirs('path/subpath/subsubpath')
+    open('path/subpath/subsubpath/data', 'wb').close()
+
+    dist.parse_command_line()
+    dist.run_commands()
+
+    assert stat.S_ISREG(os.stat('build/lib/path/subpath/subsubpath/data').st_mode), (
+        "File is not included"
+    )
+
+
+def test_read_only(tmpdir_cwd):
+    """
+    Ensure read-only flag is not preserved in copy
+    for package modules and package data, as that
+    causes problems with deleting read-only files on
+    Windows.
+
+    #1451
+    """
+    dist = Distribution(
+        dict(
+            script_name='setup.py',
+            script_args=['build_py'],
+            packages=['pkg'],
+            package_data={'pkg': ['data.dat']},
+        )
+    )
+    os.makedirs('pkg')
+    open('pkg/__init__.py', 'wb').close()
+    open('pkg/data.dat', 'wb').close()
+    os.chmod('pkg/__init__.py', stat.S_IREAD)
+    os.chmod('pkg/data.dat', stat.S_IREAD)
+    dist.parse_command_line()
+    dist.run_commands()
+    shutil.rmtree('build')
+
+
+@pytest.mark.xfail(
+    'platform.system() == "Windows"',
+    reason="On Windows, files do not have executable bits",
+    raises=AssertionError,
+    strict=True,
+)
+def test_executable_data(tmpdir_cwd):
+    """
+    Ensure executable bit is preserved in copy for
+    package data, as users rely on it for scripts.
+
+    #2041
+    """
+    dist = Distribution(
+        dict(
+            script_name='setup.py',
+            script_args=['build_py'],
+            packages=['pkg'],
+            package_data={'pkg': ['run-me']},
+        )
+    )
+    os.makedirs('pkg')
+    open('pkg/__init__.py', 'wb').close()
+    open('pkg/run-me', 'wb').close()
+    os.chmod('pkg/run-me', 0o700)
+
+    dist.parse_command_line()
+    dist.run_commands()
+
+    assert os.stat('build/lib/pkg/run-me').st_mode & stat.S_IEXEC, (
+        "Script is not executable"
+    )
+
+
+EXAMPLE_WITH_MANIFEST = {
+    "setup.cfg": DALS(
+        """
+        [metadata]
+        name = mypkg
+        version = 42
+
+        [options]
+        include_package_data = True
+        packages = find:
+
+        [options.packages.find]
+        exclude = *.tests*
+        """
+    ),
+    "mypkg": {
+        "__init__.py": "",
+        "resource_file.txt": "",
+        "tests": {
+            "__init__.py": "",
+            "test_mypkg.py": "",
+            "test_file.txt": "",
+        },
+    },
+    "MANIFEST.in": DALS(
+        """
+        global-include *.py *.txt
+        global-exclude *.py[cod]
+        prune dist
+        prune build
+        prune *.egg-info
+        """
+    ),
+}
+
+
+def test_excluded_subpackages(tmpdir_cwd):
+    jaraco.path.build(EXAMPLE_WITH_MANIFEST)
+    dist = Distribution({"script_name": "%PEP 517%"})
+    dist.parse_config_files()
+
+    build_py = dist.get_command_obj("build_py")
+
+    msg = r"Python recognizes 'mypkg\.tests' as an importable package"
+    with pytest.warns(SetuptoolsDeprecationWarning, match=msg):
+        # TODO: To fix #3260 we need some transition period to deprecate the
+        # existing behavior of `include_package_data`. After the transition, we
+        # should remove the warning and fix the behavior.
+
+        if os.getenv("SETUPTOOLS_USE_DISTUTILS") == "stdlib":
+            # pytest.warns reset the warning filter temporarily
+            # https://github.com/pytest-dev/pytest/issues/4011#issuecomment-423494810
+            warnings.filterwarnings(
+                "ignore",
+                "'encoding' argument not specified",
+                module="distutils.text_file",
+                # This warning is already fixed in pypa/distutils but not in stdlib
+            )
+
+        build_py.finalize_options()
+        build_py.run()
+
+    build_dir = Path(dist.get_command_obj("build_py").build_lib)
+    assert (build_dir / "mypkg/__init__.py").exists()
+    assert (build_dir / "mypkg/resource_file.txt").exists()
+
+    # Setuptools is configured to ignore `mypkg.tests`, therefore the following
+    # files/dirs should not be included in the distribution.
+    for f in [
+        "mypkg/tests/__init__.py",
+        "mypkg/tests/test_mypkg.py",
+        "mypkg/tests/test_file.txt",
+        "mypkg/tests",
+    ]:
+        with pytest.raises(AssertionError):
+            # TODO: Enforce the following assertion once #3260 is fixed
+            # (remove context manager and the following xfail).
+            assert not (build_dir / f).exists()
+
+    pytest.xfail("#3260")
+
+
+@pytest.mark.filterwarnings("ignore::setuptools.SetuptoolsDeprecationWarning")
+def test_existing_egg_info(tmpdir_cwd, monkeypatch):
+    """When provided with the ``existing_egg_info_dir`` attribute, build_py should not
+    attempt to run egg_info again.
+    """
+    # == Pre-condition ==
+    # Generate an egg-info dir
+    jaraco.path.build(EXAMPLE_WITH_MANIFEST)
+    dist = Distribution({"script_name": "%PEP 517%"})
+    dist.parse_config_files()
+    assert dist.include_package_data
+
+    egg_info = dist.get_command_obj("egg_info")
+    dist.run_command("egg_info")
+    egg_info_dir = next(Path(egg_info.egg_base).glob("*.egg-info"))
+    assert egg_info_dir.is_dir()
+
+    # == Setup ==
+    build_py = dist.get_command_obj("build_py")
+    build_py.finalize_options()
+    egg_info = dist.get_command_obj("egg_info")
+    egg_info_run = Mock(side_effect=egg_info.run)
+    monkeypatch.setattr(egg_info, "run", egg_info_run)
+
+    # == Remove caches ==
+    # egg_info is called when build_py looks for data_files, which gets cached.
+    # We need to ensure it is not cached yet, otherwise it may impact on the tests
+    build_py.__dict__.pop('data_files', None)
+    dist.reinitialize_command(egg_info)
+
+    # == Sanity check ==
+    # Ensure that if existing_egg_info is not given, build_py attempts to run egg_info
+    build_py.existing_egg_info_dir = None
+    build_py.run()
+    egg_info_run.assert_called()
+
+    # == Remove caches ==
+    egg_info_run.reset_mock()
+    build_py.__dict__.pop('data_files', None)
+    dist.reinitialize_command(egg_info)
+
+    # == Actual test ==
+    # Ensure that if existing_egg_info_dir is given, egg_info doesn't run
+    build_py.existing_egg_info_dir = egg_info_dir
+    build_py.run()
+    egg_info_run.assert_not_called()
+    assert build_py.data_files
+
+    # Make sure the list of outputs is actually OK
+    outputs = map(lambda x: x.replace(os.sep, "/"), build_py.get_outputs())
+    assert outputs
+    example = str(Path(build_py.build_lib, "mypkg/__init__.py")).replace(os.sep, "/")
+    assert example in outputs
+
+
+EXAMPLE_ARBITRARY_MAPPING = {
+    "pyproject.toml": DALS(
+        """
+        [project]
+        name = "mypkg"
+        version = "42"
+
+        [tool.setuptools]
+        packages = ["mypkg", "mypkg.sub1", "mypkg.sub2", "mypkg.sub2.nested"]
+
+        [tool.setuptools.package-dir]
+        "" = "src"
+        "mypkg.sub2" = "src/mypkg/_sub2"
+        "mypkg.sub2.nested" = "other"
+        """
+    ),
+    "src": {
+        "mypkg": {
+            "__init__.py": "",
+            "resource_file.txt": "",
+            "sub1": {
+                "__init__.py": "",
+                "mod1.py": "",
+            },
+            "_sub2": {
+                "mod2.py": "",
+            },
+        },
+    },
+    "other": {
+        "__init__.py": "",
+        "mod3.py": "",
+    },
+    "MANIFEST.in": DALS(
+        """
+        global-include *.py *.txt
+        global-exclude *.py[cod]
+        """
+    ),
+}
+
+
+def test_get_outputs(tmpdir_cwd):
+    jaraco.path.build(EXAMPLE_ARBITRARY_MAPPING)
+    dist = Distribution({"script_name": "%test%"})
+    dist.parse_config_files()
+
+    build_py = dist.get_command_obj("build_py")
+    build_py.editable_mode = True
+    build_py.ensure_finalized()
+    build_lib = build_py.build_lib.replace(os.sep, "/")
+    outputs = {x.replace(os.sep, "/") for x in build_py.get_outputs()}
+    assert outputs == {
+        f"{build_lib}/mypkg/__init__.py",
+        f"{build_lib}/mypkg/resource_file.txt",
+        f"{build_lib}/mypkg/sub1/__init__.py",
+        f"{build_lib}/mypkg/sub1/mod1.py",
+        f"{build_lib}/mypkg/sub2/mod2.py",
+        f"{build_lib}/mypkg/sub2/nested/__init__.py",
+        f"{build_lib}/mypkg/sub2/nested/mod3.py",
+    }
+    mapping = {
+        k.replace(os.sep, "/"): v.replace(os.sep, "/")
+        for k, v in build_py.get_output_mapping().items()
+    }
+    assert mapping == {
+        f"{build_lib}/mypkg/__init__.py": "src/mypkg/__init__.py",
+        f"{build_lib}/mypkg/resource_file.txt": "src/mypkg/resource_file.txt",
+        f"{build_lib}/mypkg/sub1/__init__.py": "src/mypkg/sub1/__init__.py",
+        f"{build_lib}/mypkg/sub1/mod1.py": "src/mypkg/sub1/mod1.py",
+        f"{build_lib}/mypkg/sub2/mod2.py": "src/mypkg/_sub2/mod2.py",
+        f"{build_lib}/mypkg/sub2/nested/__init__.py": "other/__init__.py",
+        f"{build_lib}/mypkg/sub2/nested/mod3.py": "other/mod3.py",
+    }
+
+
+class TestTypeInfoFiles:
+    PYPROJECTS = {
+        "default_pyproject": DALS(
+            """
+            [project]
+            name = "foo"
+            version = "1"
+            """
+        ),
+        "dont_include_package_data": DALS(
+            """
+            [project]
+            name = "foo"
+            version = "1"
+
+            [tool.setuptools]
+            include-package-data = false
+            """
+        ),
+        "exclude_type_info": DALS(
+            """
+            [project]
+            name = "foo"
+            version = "1"
+
+            [tool.setuptools]
+            include-package-data = false
+
+            [tool.setuptools.exclude-package-data]
+            "*" = ["py.typed", "*.pyi"]
+            """
+        ),
+    }
+
+    EXAMPLES = {
+        "simple_namespace": {
+            "directory_structure": {
+                "foo": {
+                    "bar.pyi": "",
+                    "py.typed": "",
+                    "__init__.py": "",
+                }
+            },
+            "expected_type_files": {"foo/bar.pyi", "foo/py.typed"},
+        },
+        "nested_inside_namespace": {
+            "directory_structure": {
+                "foo": {
+                    "bar": {
+                        "py.typed": "",
+                        "mod.pyi": "",
+                    }
+                }
+            },
+            "expected_type_files": {"foo/bar/mod.pyi", "foo/bar/py.typed"},
+        },
+        "namespace_nested_inside_regular": {
+            "directory_structure": {
+                "foo": {
+                    "namespace": {
+                        "foo.pyi": "",
+                    },
+                    "__init__.pyi": "",
+                    "py.typed": "",
+                }
+            },
+            "expected_type_files": {
+                "foo/namespace/foo.pyi",
+                "foo/__init__.pyi",
+                "foo/py.typed",
+            },
+        },
+    }
+
+    @pytest.mark.parametrize(
+        "pyproject",
+        [
+            "default_pyproject",
+            pytest.param(
+                "dont_include_package_data",
+                marks=pytest.mark.xfail(reason="pypa/setuptools#4350"),
+            ),
+        ],
+    )
+    @pytest.mark.parametrize("example", EXAMPLES.keys())
+    def test_type_files_included_by_default(self, tmpdir_cwd, pyproject, example):
+        structure = {
+            **self.EXAMPLES[example]["directory_structure"],
+            "pyproject.toml": self.PYPROJECTS[pyproject],
+        }
+        expected_type_files = self.EXAMPLES[example]["expected_type_files"]
+        jaraco.path.build(structure)
+
+        build_py = get_finalized_build_py()
+        outputs = get_outputs(build_py)
+        assert expected_type_files <= outputs
+
+    @pytest.mark.parametrize("pyproject", ["exclude_type_info"])
+    @pytest.mark.parametrize("example", EXAMPLES.keys())
+    def test_type_files_can_be_excluded(self, tmpdir_cwd, pyproject, example):
+        structure = {
+            **self.EXAMPLES[example]["directory_structure"],
+            "pyproject.toml": self.PYPROJECTS[pyproject],
+        }
+        expected_type_files = self.EXAMPLES[example]["expected_type_files"]
+        jaraco.path.build(structure)
+
+        build_py = get_finalized_build_py()
+        outputs = get_outputs(build_py)
+        assert expected_type_files.isdisjoint(outputs)
+
+    def test_stub_only_package(self, tmpdir_cwd):
+        structure = {
+            "pyproject.toml": DALS(
+                """
+                [project]
+                name = "foo-stubs"
+                version = "1"
+                """
+            ),
+            "foo-stubs": {"__init__.pyi": "", "bar.pyi": ""},
+        }
+        expected_type_files = {"foo-stubs/__init__.pyi", "foo-stubs/bar.pyi"}
+        jaraco.path.build(structure)
+
+        build_py = get_finalized_build_py()
+        outputs = get_outputs(build_py)
+        assert expected_type_files <= outputs
+
+
+def get_finalized_build_py(script_name="%build_py-test%"):
+    dist = Distribution({"script_name": script_name})
+    dist.parse_config_files()
+    build_py = dist.get_command_obj("build_py")
+    build_py.finalize_options()
+    return build_py
+
+
+def get_outputs(build_py):
+    build_dir = Path(build_py.build_lib)
+    return {
+        os.path.relpath(x, build_dir).replace(os.sep, "/")
+        for x in build_py.get_outputs()
+    }
diff --git a/setuptools/tests/test_config_discovery.py b/setuptools/tests/test_config_discovery.py
new file mode 100644
index 0000000000..b5df8203cd
--- /dev/null
+++ b/setuptools/tests/test_config_discovery.py
@@ -0,0 +1,647 @@
+import os
+import sys
+from configparser import ConfigParser
+from itertools import product
+from typing import cast
+
+import jaraco.path
+import pytest
+from path import Path
+
+import setuptools  # noqa: F401 # force distutils.core to be patched
+from setuptools.command.sdist import sdist
+from setuptools.discovery import find_package_path, find_parent_package
+from setuptools.dist import Distribution
+from setuptools.errors import PackageDiscoveryError
+
+from .contexts import quiet
+from .integration.helpers import get_sdist_members, get_wheel_members, run
+from .textwrap import DALS
+
+import distutils.core
+
+
+class TestFindParentPackage:
+    def test_single_package(self, tmp_path):
+        # find_parent_package should find a non-namespace parent package
+        (tmp_path / "src/namespace/pkg/nested").mkdir(exist_ok=True, parents=True)
+        (tmp_path / "src/namespace/pkg/nested/__init__.py").touch()
+        (tmp_path / "src/namespace/pkg/__init__.py").touch()
+        packages = ["namespace", "namespace.pkg", "namespace.pkg.nested"]
+        assert find_parent_package(packages, {"": "src"}, tmp_path) == "namespace.pkg"
+
+    def test_multiple_toplevel(self, tmp_path):
+        # find_parent_package should return null if the given list of packages does not
+        # have a single parent package
+        multiple = ["pkg", "pkg1", "pkg2"]
+        for name in multiple:
+            (tmp_path / f"src/{name}").mkdir(exist_ok=True, parents=True)
+            (tmp_path / f"src/{name}/__init__.py").touch()
+        assert find_parent_package(multiple, {"": "src"}, tmp_path) is None
+
+
+class TestDiscoverPackagesAndPyModules:
+    """Make sure discovered values for ``packages`` and ``py_modules`` work
+    similarly to explicit configuration for the simple scenarios.
+    """
+
+    OPTIONS = {
+        # Different options according to the circumstance being tested
+        "explicit-src": {"package_dir": {"": "src"}, "packages": ["pkg"]},
+        "variation-lib": {
+            "package_dir": {"": "lib"},  # variation of the source-layout
+        },
+        "explicit-flat": {"packages": ["pkg"]},
+        "explicit-single_module": {"py_modules": ["pkg"]},
+        "explicit-namespace": {"packages": ["ns", "ns.pkg"]},
+        "automatic-src": {},
+        "automatic-flat": {},
+        "automatic-single_module": {},
+        "automatic-namespace": {},
+    }
+    FILES = {
+        "src": ["src/pkg/__init__.py", "src/pkg/main.py"],
+        "lib": ["lib/pkg/__init__.py", "lib/pkg/main.py"],
+        "flat": ["pkg/__init__.py", "pkg/main.py"],
+        "single_module": ["pkg.py"],
+        "namespace": ["ns/pkg/__init__.py"],
+    }
+
+    def _get_info(self, circumstance):
+        _, _, layout = circumstance.partition("-")
+        files = self.FILES[layout]
+        options = self.OPTIONS[circumstance]
+        return files, options
+
+    @pytest.mark.parametrize("circumstance", OPTIONS.keys())
+    def test_sdist_filelist(self, tmp_path, circumstance):
+        files, options = self._get_info(circumstance)
+        _populate_project_dir(tmp_path, files, options)
+
+        _, cmd = _run_sdist_programatically(tmp_path, options)
+
+        manifest = [f.replace(os.sep, "/") for f in cmd.filelist.files]
+        for file in files:
+            assert any(f.endswith(file) for f in manifest)
+
+    @pytest.mark.parametrize("circumstance", OPTIONS.keys())
+    def test_project(self, tmp_path, circumstance):
+        files, options = self._get_info(circumstance)
+        _populate_project_dir(tmp_path, files, options)
+
+        # Simulate a pre-existing `build` directory
+        (tmp_path / "build").mkdir()
+        (tmp_path / "build/lib").mkdir()
+        (tmp_path / "build/bdist.linux-x86_64").mkdir()
+        (tmp_path / "build/bdist.linux-x86_64/file.py").touch()
+        (tmp_path / "build/lib/__init__.py").touch()
+        (tmp_path / "build/lib/file.py").touch()
+        (tmp_path / "dist").mkdir()
+        (tmp_path / "dist/file.py").touch()
+
+        _run_build(tmp_path)
+
+        sdist_files = get_sdist_members(next(tmp_path.glob("dist/*.tar.gz")))
+        print("~~~~~ sdist_members ~~~~~")
+        print('\n'.join(sdist_files))
+        assert sdist_files >= set(files)
+
+        wheel_files = get_wheel_members(next(tmp_path.glob("dist/*.whl")))
+        print("~~~~~ wheel_members ~~~~~")
+        print('\n'.join(wheel_files))
+        orig_files = {f.replace("src/", "").replace("lib/", "") for f in files}
+        assert wheel_files >= orig_files
+
+        # Make sure build files are not included by mistake
+        for file in wheel_files:
+            assert "build" not in files
+            assert "dist" not in files
+
+    PURPOSEFULLY_EMPY = {
+        "setup.cfg": DALS(
+            """
+            [metadata]
+            name = myproj
+            version = 0.0.0
+
+            [options]
+            {param} =
+            """
+        ),
+        "setup.py": DALS(
+            """
+            __import__('setuptools').setup(
+                name="myproj",
+                version="0.0.0",
+                {param}=[]
+            )
+            """
+        ),
+        "pyproject.toml": DALS(
+            """
+            [build-system]
+            requires = []
+            build-backend = 'setuptools.build_meta'
+
+            [project]
+            name = "myproj"
+            version = "0.0.0"
+
+            [tool.setuptools]
+            {param} = []
+            """
+        ),
+        "template-pyproject.toml": DALS(
+            """
+            [build-system]
+            requires = []
+            build-backend = 'setuptools.build_meta'
+            """
+        ),
+    }
+
+    @pytest.mark.parametrize(
+        ("config_file", "param", "circumstance"),
+        product(
+            ["setup.cfg", "setup.py", "pyproject.toml"],
+            ["packages", "py_modules"],
+            FILES.keys(),
+        ),
+    )
+    def test_purposefully_empty(self, tmp_path, config_file, param, circumstance):
+        files = self.FILES[circumstance] + ["mod.py", "other.py", "src/pkg/__init__.py"]
+        _populate_project_dir(tmp_path, files, {})
+
+        if config_file == "pyproject.toml":
+            template_param = param.replace("_", "-")
+        else:
+            # Make sure build works with or without setup.cfg
+            pyproject = self.PURPOSEFULLY_EMPY["template-pyproject.toml"]
+            (tmp_path / "pyproject.toml").write_text(pyproject, encoding="utf-8")
+            template_param = param
+
+        config = self.PURPOSEFULLY_EMPY[config_file].format(param=template_param)
+        (tmp_path / config_file).write_text(config, encoding="utf-8")
+
+        dist = _get_dist(tmp_path, {})
+        # When either parameter package or py_modules is an empty list,
+        # then there should be no discovery
+        assert getattr(dist, param) == []
+        other = {"py_modules": "packages", "packages": "py_modules"}[param]
+        assert getattr(dist, other) is None
+
+    @pytest.mark.parametrize(
+        ("extra_files", "pkgs"),
+        [
+            (["venv/bin/simulate_venv"], {"pkg"}),
+            (["pkg-stubs/__init__.pyi"], {"pkg", "pkg-stubs"}),
+            (["other-stubs/__init__.pyi"], {"pkg", "other-stubs"}),
+            (
+                # Type stubs can also be namespaced
+                ["namespace-stubs/pkg/__init__.pyi"],
+                {"pkg", "namespace-stubs", "namespace-stubs.pkg"},
+            ),
+            (
+                # Just the top-level package can have `-stubs`, ignore nested ones
+                ["namespace-stubs/pkg-stubs/__init__.pyi"],
+                {"pkg", "namespace-stubs"},
+            ),
+            (["_hidden/file.py"], {"pkg"}),
+            (["news/finalize.py"], {"pkg"}),
+        ],
+    )
+    def test_flat_layout_with_extra_files(self, tmp_path, extra_files, pkgs):
+        files = self.FILES["flat"] + extra_files
+        _populate_project_dir(tmp_path, files, {})
+        dist = _get_dist(tmp_path, {})
+        assert set(dist.packages) == pkgs
+
+    @pytest.mark.parametrize(
+        "extra_files",
+        [
+            ["other/__init__.py"],
+            ["other/finalize.py"],
+        ],
+    )
+    def test_flat_layout_with_dangerous_extra_files(self, tmp_path, extra_files):
+        files = self.FILES["flat"] + extra_files
+        _populate_project_dir(tmp_path, files, {})
+        with pytest.raises(PackageDiscoveryError, match="multiple (packages|modules)"):
+            _get_dist(tmp_path, {})
+
+    def test_flat_layout_with_single_module(self, tmp_path):
+        files = self.FILES["single_module"] + ["invalid-module-name.py"]
+        _populate_project_dir(tmp_path, files, {})
+        dist = _get_dist(tmp_path, {})
+        assert set(dist.py_modules) == {"pkg"}
+
+    def test_flat_layout_with_multiple_modules(self, tmp_path):
+        files = self.FILES["single_module"] + ["valid_module_name.py"]
+        _populate_project_dir(tmp_path, files, {})
+        with pytest.raises(PackageDiscoveryError, match="multiple (packages|modules)"):
+            _get_dist(tmp_path, {})
+
+    def test_py_modules_when_wheel_dir_is_cwd(self, tmp_path):
+        """Regression for issue 3692"""
+        from setuptools import build_meta
+
+        pyproject = '[project]\nname = "test"\nversion = "1"'
+        (tmp_path / "pyproject.toml").write_text(DALS(pyproject), encoding="utf-8")
+        (tmp_path / "foo.py").touch()
+        with jaraco.path.DirectoryStack().context(tmp_path):
+            build_meta.build_wheel(".")
+        # Ensure py_modules are found
+        wheel_files = get_wheel_members(next(tmp_path.glob("*.whl")))
+        assert "foo.py" in wheel_files
+
+
+class TestNoConfig:
+    DEFAULT_VERSION = "0.0.0"  # Default version given by setuptools
+
+    EXAMPLES = {
+        "pkg1": ["src/pkg1.py"],
+        "pkg2": ["src/pkg2/__init__.py"],
+        "pkg3": ["src/pkg3/__init__.py", "src/pkg3-stubs/__init__.py"],
+        "pkg4": ["pkg4/__init__.py", "pkg4-stubs/__init__.py"],
+        "ns.nested.pkg1": ["src/ns/nested/pkg1/__init__.py"],
+        "ns.nested.pkg2": ["ns/nested/pkg2/__init__.py"],
+    }
+
+    @pytest.mark.parametrize("example", EXAMPLES.keys())
+    def test_discover_name(self, tmp_path, example):
+        _populate_project_dir(tmp_path, self.EXAMPLES[example], {})
+        dist = _get_dist(tmp_path, {})
+        assert dist.get_name() == example
+
+    def test_build_with_discovered_name(self, tmp_path):
+        files = ["src/ns/nested/pkg/__init__.py"]
+        _populate_project_dir(tmp_path, files, {})
+        _run_build(tmp_path, "--sdist")
+        # Expected distribution file
+        dist_file = tmp_path / f"dist/ns_nested_pkg-{self.DEFAULT_VERSION}.tar.gz"
+        assert dist_file.is_file()
+
+
+class TestWithAttrDirective:
+    @pytest.mark.parametrize(
+        ("folder", "opts"),
+        [
+            ("src", {}),
+            ("lib", {"packages": "find:", "packages.find": {"where": "lib"}}),
+        ],
+    )
+    def test_setupcfg_metadata(self, tmp_path, folder, opts):
+        files = [f"{folder}/pkg/__init__.py", "setup.cfg"]
+        _populate_project_dir(tmp_path, files, opts)
+
+        config = (tmp_path / "setup.cfg").read_text(encoding="utf-8")
+        overwrite = {
+            folder: {"pkg": {"__init__.py": "version = 42"}},
+            "setup.cfg": "[metadata]\nversion = attr: pkg.version\n" + config,
+        }
+        jaraco.path.build(overwrite, prefix=tmp_path)
+
+        dist = _get_dist(tmp_path, {})
+        assert dist.get_name() == "pkg"
+        assert dist.get_version() == "42"
+        assert dist.package_dir
+        package_path = find_package_path("pkg", dist.package_dir, tmp_path)
+        assert os.path.exists(package_path)
+        assert folder in Path(package_path).parts()
+
+        _run_build(tmp_path, "--sdist")
+        dist_file = tmp_path / "dist/pkg-42.tar.gz"
+        assert dist_file.is_file()
+
+    def test_pyproject_metadata(self, tmp_path):
+        _populate_project_dir(tmp_path, ["src/pkg/__init__.py"], {})
+
+        overwrite = {
+            "src": {"pkg": {"__init__.py": "version = 42"}},
+            "pyproject.toml": (
+                "[project]\nname = 'pkg'\ndynamic = ['version']\n"
+                "[tool.setuptools.dynamic]\nversion = {attr = 'pkg.version'}\n"
+            ),
+        }
+        jaraco.path.build(overwrite, prefix=tmp_path)
+
+        dist = _get_dist(tmp_path, {})
+        assert dist.get_version() == "42"
+        assert dist.package_dir == {"": "src"}
+
+
+class TestWithCExtension:
+    def _simulate_package_with_extension(self, tmp_path):
+        # This example is based on: https://github.com/nucleic/kiwi/tree/1.4.0
+        files = [
+            "benchmarks/file.py",
+            "docs/Makefile",
+            "docs/requirements.txt",
+            "docs/source/conf.py",
+            "proj/header.h",
+            "proj/file.py",
+            "py/proj.cpp",
+            "py/other.cpp",
+            "py/file.py",
+            "py/py.typed",
+            "py/tests/test_proj.py",
+            "README.rst",
+        ]
+        _populate_project_dir(tmp_path, files, {})
+
+        setup_script = """
+            from setuptools import Extension, setup
+
+            ext_modules = [
+                Extension(
+                    "proj",
+                    ["py/proj.cpp", "py/other.cpp"],
+                    include_dirs=["."],
+                    language="c++",
+                ),
+            ]
+            setup(ext_modules=ext_modules)
+        """
+        (tmp_path / "setup.py").write_text(DALS(setup_script), encoding="utf-8")
+
+    def test_skip_discovery_with_setupcfg_metadata(self, tmp_path):
+        """Ensure that auto-discovery is not triggered when the project is based on
+        C-extensions only, for backward compatibility.
+        """
+        self._simulate_package_with_extension(tmp_path)
+
+        pyproject = """
+            [build-system]
+            requires = []
+            build-backend = 'setuptools.build_meta'
+        """
+        (tmp_path / "pyproject.toml").write_text(DALS(pyproject), encoding="utf-8")
+
+        setupcfg = """
+            [metadata]
+            name = proj
+            version = 42
+        """
+        (tmp_path / "setup.cfg").write_text(DALS(setupcfg), encoding="utf-8")
+
+        dist = _get_dist(tmp_path, {})
+        assert dist.get_name() == "proj"
+        assert dist.get_version() == "42"
+        assert dist.py_modules is None
+        assert dist.packages is None
+        assert len(dist.ext_modules) == 1
+        assert dist.ext_modules[0].name == "proj"
+
+    def test_dont_skip_discovery_with_pyproject_metadata(self, tmp_path):
+        """When opting-in to pyproject.toml metadata, auto-discovery will be active if
+        the package lists C-extensions, but does not configure py-modules or packages.
+
+        This way we ensure users with complex package layouts that would lead to the
+        discovery of multiple top-level modules/packages see errors and are forced to
+        explicitly set ``packages`` or ``py-modules``.
+        """
+        self._simulate_package_with_extension(tmp_path)
+
+        pyproject = """
+            [project]
+            name = 'proj'
+            version = '42'
+        """
+        (tmp_path / "pyproject.toml").write_text(DALS(pyproject), encoding="utf-8")
+        with pytest.raises(PackageDiscoveryError, match="multiple (packages|modules)"):
+            _get_dist(tmp_path, {})
+
+
+class TestWithPackageData:
+    def _simulate_package_with_data_files(self, tmp_path, src_root):
+        files = [
+            f"{src_root}/proj/__init__.py",
+            f"{src_root}/proj/file1.txt",
+            f"{src_root}/proj/nested/file2.txt",
+        ]
+        _populate_project_dir(tmp_path, files, {})
+
+        manifest = """
+            global-include *.py *.txt
+        """
+        (tmp_path / "MANIFEST.in").write_text(DALS(manifest), encoding="utf-8")
+
+    EXAMPLE_SETUPCFG = """
+    [metadata]
+    name = proj
+    version = 42
+
+    [options]
+    include_package_data = True
+    """
+    EXAMPLE_PYPROJECT = """
+    [project]
+    name = "proj"
+    version = "42"
+    """
+
+    PYPROJECT_PACKAGE_DIR = """
+    [tool.setuptools]
+    package-dir = {"" = "src"}
+    """
+
+    @pytest.mark.parametrize(
+        ("src_root", "files"),
+        [
+            (".", {"setup.cfg": DALS(EXAMPLE_SETUPCFG)}),
+            (".", {"pyproject.toml": DALS(EXAMPLE_PYPROJECT)}),
+            ("src", {"setup.cfg": DALS(EXAMPLE_SETUPCFG)}),
+            ("src", {"pyproject.toml": DALS(EXAMPLE_PYPROJECT)}),
+            (
+                "src",
+                {
+                    "setup.cfg": DALS(EXAMPLE_SETUPCFG)
+                    + DALS(
+                        """
+                        packages = find:
+                        package_dir =
+                            =src
+
+                        [options.packages.find]
+                        where = src
+                        """
+                    )
+                },
+            ),
+            (
+                "src",
+                {
+                    "pyproject.toml": DALS(EXAMPLE_PYPROJECT)
+                    + DALS(
+                        """
+                        [tool.setuptools]
+                        package-dir = {"" = "src"}
+                        """
+                    )
+                },
+            ),
+        ],
+    )
+    def test_include_package_data(self, tmp_path, src_root, files):
+        """
+        Make sure auto-discovery does not affect package include_package_data.
+        See issue #3196.
+        """
+        jaraco.path.build(files, prefix=str(tmp_path))
+        self._simulate_package_with_data_files(tmp_path, src_root)
+
+        expected = {
+            os.path.normpath(f"{src_root}/proj/file1.txt").replace(os.sep, "/"),
+            os.path.normpath(f"{src_root}/proj/nested/file2.txt").replace(os.sep, "/"),
+        }
+
+        _run_build(tmp_path)
+
+        sdist_files = get_sdist_members(next(tmp_path.glob("dist/*.tar.gz")))
+        print("~~~~~ sdist_members ~~~~~")
+        print('\n'.join(sdist_files))
+        assert sdist_files >= expected
+
+        wheel_files = get_wheel_members(next(tmp_path.glob("dist/*.whl")))
+        print("~~~~~ wheel_members ~~~~~")
+        print('\n'.join(wheel_files))
+        orig_files = {f.replace("src/", "").replace("lib/", "") for f in expected}
+        assert wheel_files >= orig_files
+
+
+def test_compatible_with_numpy_configuration(tmp_path):
+    files = [
+        "dir1/__init__.py",
+        "dir2/__init__.py",
+        "file.py",
+    ]
+    _populate_project_dir(tmp_path, files, {})
+    dist = Distribution({})
+    dist.configuration = object()
+    dist.set_defaults()
+    assert dist.py_modules is None
+    assert dist.packages is None
+
+
+def test_name_discovery_doesnt_break_cli(tmpdir_cwd):
+    jaraco.path.build({"pkg.py": ""})
+    dist = Distribution({})
+    dist.script_args = ["--name"]
+    dist.set_defaults()
+    dist.parse_command_line()  # <-- no exception should be raised here.
+    assert dist.get_name() == "pkg"
+
+
+def test_preserve_explicit_name_with_dynamic_version(tmpdir_cwd, monkeypatch):
+    """According to #3545 it seems that ``name`` discovery is running,
+    even when the project already explicitly sets it.
+    This seems to be related to parsing of dynamic versions (via ``attr`` directive),
+    which requires the auto-discovery of ``package_dir``.
+    """
+    files = {
+        "src": {
+            "pkg": {"__init__.py": "__version__ = 42\n"},
+        },
+        "pyproject.toml": DALS(
+            """
+            [project]
+            name = "myproj"  # purposefully different from package name
+            dynamic = ["version"]
+            [tool.setuptools.dynamic]
+            version = {"attr" = "pkg.__version__"}
+            """
+        ),
+    }
+    jaraco.path.build(files)
+    dist = Distribution({})
+    orig_analyse_name = dist.set_defaults.analyse_name
+
+    def spy_analyse_name():
+        # We can check if name discovery was triggered by ensuring the original
+        # name remains instead of the package name.
+        orig_analyse_name()
+        assert dist.get_name() == "myproj"
+
+    monkeypatch.setattr(dist.set_defaults, "analyse_name", spy_analyse_name)
+    dist.parse_config_files()
+    assert dist.get_version() == "42"
+    assert set(dist.packages) == {"pkg"}
+
+
+def _populate_project_dir(root, files, options):
+    # NOTE: Currently pypa/build will refuse to build the project if no
+    # `pyproject.toml` or `setup.py` is found. So it is impossible to do
+    # completely "config-less" projects.
+    basic = {
+        "setup.py": "import setuptools\nsetuptools.setup()",
+        "README.md": "# Example Package",
+        "LICENSE": "Copyright (c) 2018",
+    }
+    jaraco.path.build(basic, prefix=root)
+    _write_setupcfg(root, options)
+    paths = (root / f for f in files)
+    for path in paths:
+        path.parent.mkdir(exist_ok=True, parents=True)
+        path.touch()
+
+
+def _write_setupcfg(root, options):
+    if not options:
+        print("~~~~~ **NO** setup.cfg ~~~~~")
+        return
+    setupcfg = ConfigParser()
+    setupcfg.add_section("options")
+    for key, value in options.items():
+        if key == "packages.find":
+            setupcfg.add_section(f"options.{key}")
+            setupcfg[f"options.{key}"].update(value)
+        elif isinstance(value, list):
+            setupcfg["options"][key] = ", ".join(value)
+        elif isinstance(value, dict):
+            str_value = "\n".join(f"\t{k} = {v}" for k, v in value.items())
+            setupcfg["options"][key] = "\n" + str_value
+        else:
+            setupcfg["options"][key] = str(value)
+    with open(root / "setup.cfg", "w", encoding="utf-8") as f:
+        setupcfg.write(f)
+    print("~~~~~ setup.cfg ~~~~~")
+    print((root / "setup.cfg").read_text(encoding="utf-8"))
+
+
+def _run_build(path, *flags):
+    cmd = [sys.executable, "-m", "build", "--no-isolation", *flags, str(path)]
+    return run(cmd, env={'DISTUTILS_DEBUG': ''})
+
+
+def _get_dist(dist_path, attrs):
+    root = "/".join(os.path.split(dist_path))  # POSIX-style
+
+    script = dist_path / 'setup.py'
+    if script.exists():
+        with Path(dist_path):
+            dist = cast(
+                Distribution,
+                distutils.core.run_setup("setup.py", {}, stop_after="init"),
+            )
+    else:
+        dist = Distribution(attrs)
+
+    dist.src_root = root
+    dist.script_name = "setup.py"
+    with Path(dist_path):
+        dist.parse_config_files()
+
+    dist.set_defaults()
+    return dist
+
+
+def _run_sdist_programatically(dist_path, attrs):
+    dist = _get_dist(dist_path, attrs)
+    cmd = sdist(dist)
+    cmd.ensure_finalized()
+    assert cmd.distribution.packages or cmd.distribution.py_modules
+
+    with quiet(), Path(dist_path):
+        cmd.run()
+
+    return dist, cmd
diff --git a/setuptools/tests/test_core_metadata.py b/setuptools/tests/test_core_metadata.py
new file mode 100644
index 0000000000..0d925111fa
--- /dev/null
+++ b/setuptools/tests/test_core_metadata.py
@@ -0,0 +1,622 @@
+from __future__ import annotations
+
+import functools
+import importlib
+import io
+from email import message_from_string
+from email.generator import Generator
+from email.message import EmailMessage, Message
+from email.parser import Parser
+from email.policy import EmailPolicy
+from inspect import cleandoc
+from pathlib import Path
+from unittest.mock import Mock
+
+import jaraco.path
+import pytest
+from packaging.metadata import Metadata
+from packaging.requirements import Requirement
+
+from setuptools import _reqs, sic
+from setuptools._core_metadata import rfc822_escape, rfc822_unescape
+from setuptools.command.egg_info import egg_info, write_requirements
+from setuptools.config import expand, setupcfg
+from setuptools.dist import Distribution
+
+from .config.downloads import retrieve_file, urls_from_file
+
+EXAMPLE_BASE_INFO = dict(
+    name="package",
+    version="0.0.1",
+    author="Foo Bar",
+    author_email="foo@bar.net",
+    long_description="Long\ndescription",
+    description="Short description",
+    keywords=["one", "two"],
+)
+
+
+@pytest.mark.parametrize(
+    ("content", "result"),
+    (
+        pytest.param(
+            "Just a single line",
+            None,
+            id="single_line",
+        ),
+        pytest.param(
+            "Multiline\nText\nwithout\nextra indents\n",
+            None,
+            id="multiline",
+        ),
+        pytest.param(
+            "Multiline\n    With\n\nadditional\n  indentation",
+            None,
+            id="multiline_with_indentation",
+        ),
+        pytest.param(
+            "  Leading whitespace",
+            "Leading whitespace",
+            id="remove_leading_whitespace",
+        ),
+        pytest.param(
+            "  Leading whitespace\nIn\n    Multiline comment",
+            "Leading whitespace\nIn\n    Multiline comment",
+            id="remove_leading_whitespace_multiline",
+        ),
+    ),
+)
+def test_rfc822_unescape(content, result):
+    assert (result or content) == rfc822_unescape(rfc822_escape(content))
+
+
+def __read_test_cases():
+    base = EXAMPLE_BASE_INFO
+
+    params = functools.partial(dict, base)
+
+    return [
+        ('Metadata version 1.0', params()),
+        (
+            'Metadata Version 1.0: Short long description',
+            params(
+                long_description='Short long description',
+            ),
+        ),
+        (
+            'Metadata version 1.1: Classifiers',
+            params(
+                classifiers=[
+                    'Programming Language :: Python :: 3',
+                    'Programming Language :: Python :: 3.7',
+                    'License :: OSI Approved :: MIT License',
+                ],
+            ),
+        ),
+        (
+            'Metadata version 1.1: Download URL',
+            params(
+                download_url='https://example.com',
+            ),
+        ),
+        (
+            'Metadata Version 1.2: Requires-Python',
+            params(
+                python_requires='>=3.7',
+            ),
+        ),
+        pytest.param(
+            'Metadata Version 1.2: Project-Url',
+            params(project_urls=dict(Foo='https://example.bar')),
+            marks=pytest.mark.xfail(
+                reason="Issue #1578: project_urls not read",
+            ),
+        ),
+        (
+            'Metadata Version 2.1: Long Description Content Type',
+            params(
+                long_description_content_type='text/x-rst; charset=UTF-8',
+            ),
+        ),
+        (
+            'License',
+            params(
+                license='MIT',
+            ),
+        ),
+        (
+            'License multiline',
+            params(
+                license='This is a long license \nover multiple lines',
+            ),
+        ),
+        pytest.param(
+            'Metadata Version 2.1: Provides Extra',
+            params(provides_extras=['foo', 'bar']),
+            marks=pytest.mark.xfail(reason="provides_extras not read"),
+        ),
+        (
+            'Missing author',
+            dict(
+                name='foo',
+                version='1.0.0',
+                author_email='snorri@sturluson.name',
+            ),
+        ),
+        (
+            'Missing author e-mail',
+            dict(
+                name='foo',
+                version='1.0.0',
+                author='Snorri Sturluson',
+            ),
+        ),
+        (
+            'Missing author and e-mail',
+            dict(
+                name='foo',
+                version='1.0.0',
+            ),
+        ),
+        (
+            'Bypass normalized version',
+            dict(
+                name='foo',
+                version=sic('1.0.0a'),
+            ),
+        ),
+    ]
+
+
+@pytest.mark.parametrize(("name", "attrs"), __read_test_cases())
+def test_read_metadata(name, attrs):
+    dist = Distribution(attrs)
+    metadata_out = dist.metadata
+    dist_class = metadata_out.__class__
+
+    # Write to PKG_INFO and then load into a new metadata object
+    PKG_INFO = io.StringIO()
+
+    metadata_out.write_pkg_file(PKG_INFO)
+    PKG_INFO.seek(0)
+    pkg_info = PKG_INFO.read()
+    assert _valid_metadata(pkg_info)
+
+    PKG_INFO.seek(0)
+    metadata_in = dist_class()
+    metadata_in.read_pkg_file(PKG_INFO)
+
+    tested_attrs = [
+        ('name', dist_class.get_name),
+        ('version', dist_class.get_version),
+        ('author', dist_class.get_contact),
+        ('author_email', dist_class.get_contact_email),
+        ('metadata_version', dist_class.get_metadata_version),
+        ('provides', dist_class.get_provides),
+        ('description', dist_class.get_description),
+        ('long_description', dist_class.get_long_description),
+        ('download_url', dist_class.get_download_url),
+        ('keywords', dist_class.get_keywords),
+        ('platforms', dist_class.get_platforms),
+        ('obsoletes', dist_class.get_obsoletes),
+        ('requires', dist_class.get_requires),
+        ('classifiers', dist_class.get_classifiers),
+        ('project_urls', lambda s: getattr(s, 'project_urls', {})),
+        ('provides_extras', lambda s: getattr(s, 'provides_extras', {})),
+    ]
+
+    for attr, getter in tested_attrs:
+        assert getter(metadata_in) == getter(metadata_out)
+
+
+def __maintainer_test_cases():
+    attrs = {"name": "package", "version": "1.0", "description": "xxx"}
+
+    def merge_dicts(d1, d2):
+        d1 = d1.copy()
+        d1.update(d2)
+
+        return d1
+
+    return [
+        ('No author, no maintainer', attrs.copy()),
+        (
+            'Author (no e-mail), no maintainer',
+            merge_dicts(attrs, {'author': 'Author Name'}),
+        ),
+        (
+            'Author (e-mail), no maintainer',
+            merge_dicts(
+                attrs, {'author': 'Author Name', 'author_email': 'author@name.com'}
+            ),
+        ),
+        (
+            'No author, maintainer (no e-mail)',
+            merge_dicts(attrs, {'maintainer': 'Maintainer Name'}),
+        ),
+        (
+            'No author, maintainer (e-mail)',
+            merge_dicts(
+                attrs,
+                {
+                    'maintainer': 'Maintainer Name',
+                    'maintainer_email': 'maintainer@name.com',
+                },
+            ),
+        ),
+        (
+            'Author (no e-mail), Maintainer (no-email)',
+            merge_dicts(
+                attrs, {'author': 'Author Name', 'maintainer': 'Maintainer Name'}
+            ),
+        ),
+        (
+            'Author (e-mail), Maintainer (e-mail)',
+            merge_dicts(
+                attrs,
+                {
+                    'author': 'Author Name',
+                    'author_email': 'author@name.com',
+                    'maintainer': 'Maintainer Name',
+                    'maintainer_email': 'maintainer@name.com',
+                },
+            ),
+        ),
+        (
+            'No author (e-mail), no maintainer (e-mail)',
+            merge_dicts(
+                attrs,
+                {
+                    'author_email': 'author@name.com',
+                    'maintainer_email': 'maintainer@name.com',
+                },
+            ),
+        ),
+        ('Author unicode', merge_dicts(attrs, {'author': '鉄沢寛'})),
+        ('Maintainer unicode', merge_dicts(attrs, {'maintainer': 'Jan Łukasiewicz'})),
+    ]
+
+
+@pytest.mark.parametrize(("name", "attrs"), __maintainer_test_cases())
+def test_maintainer_author(name, attrs, tmpdir):
+    tested_keys = {
+        'author': 'Author',
+        'author_email': 'Author-email',
+        'maintainer': 'Maintainer',
+        'maintainer_email': 'Maintainer-email',
+    }
+
+    # Generate a PKG-INFO file
+    dist = Distribution(attrs)
+    fn = tmpdir.mkdir('pkg_info')
+    fn_s = str(fn)
+
+    dist.metadata.write_pkg_info(fn_s)
+
+    with open(str(fn.join('PKG-INFO')), 'r', encoding='utf-8') as f:
+        pkg_info = f.read()
+
+    assert _valid_metadata(pkg_info)
+
+    # Drop blank lines and strip lines from default description
+    raw_pkg_lines = pkg_info.splitlines()
+    pkg_lines = list(filter(None, raw_pkg_lines[:-2]))
+
+    pkg_lines_set = set(pkg_lines)
+
+    # Duplicate lines should not be generated
+    assert len(pkg_lines) == len(pkg_lines_set)
+
+    for fkey, dkey in tested_keys.items():
+        val = attrs.get(dkey, None)
+        if val is None:
+            for line in pkg_lines:
+                assert not line.startswith(fkey + ':')
+        else:
+            line = f'{fkey}: {val}'
+            assert line in pkg_lines_set
+
+
+class TestParityWithMetadataFromPyPaWheel:
+    def base_example(self):
+        attrs = dict(
+            **EXAMPLE_BASE_INFO,
+            # Example with complex requirement definition
+            python_requires=">=3.8",
+            install_requires="""
+            packaging==23.2
+            more-itertools==8.8.0; extra == "other"
+            jaraco.text==3.7.0
+            importlib-resources==5.10.2; python_version<"3.8"
+            importlib-metadata==6.0.0 ; python_version<"3.8"
+            colorama>=0.4.4; sys_platform == "win32"
+            """,
+            extras_require={
+                "testing": """
+                    pytest >= 6
+                    pytest-checkdocs >= 2.4
+                    tomli ; \\
+                            # Using stdlib when possible
+                            python_version < "3.11"
+                    ini2toml[lite]>=0.9
+                    """,
+                "other": [],
+            },
+        )
+        # Generate a PKG-INFO file using setuptools
+        return Distribution(attrs)
+
+    def test_requires_dist(self, tmp_path):
+        dist = self.base_example()
+        pkg_info = _get_pkginfo(dist)
+        assert _valid_metadata(pkg_info)
+
+        # Ensure Requires-Dist is present
+        expected = [
+            'Metadata-Version:',
+            'Requires-Python: >=3.8',
+            'Provides-Extra: other',
+            'Provides-Extra: testing',
+            'Requires-Dist: tomli; python_version < "3.11" and extra == "testing"',
+            'Requires-Dist: more-itertools==8.8.0; extra == "other"',
+            'Requires-Dist: ini2toml[lite]>=0.9; extra == "testing"',
+        ]
+        for line in expected:
+            assert line in pkg_info
+
+    HERE = Path(__file__).parent
+    EXAMPLES_FILE = HERE / "config/setupcfg_examples.txt"
+
+    @pytest.fixture(params=[None, *urls_from_file(EXAMPLES_FILE)])
+    def dist(self, request, monkeypatch, tmp_path):
+        """Example of distribution with arbitrary configuration"""
+        monkeypatch.chdir(tmp_path)
+        monkeypatch.setattr(expand, "read_attr", Mock(return_value="0.42"))
+        monkeypatch.setattr(expand, "read_files", Mock(return_value="hello world"))
+        monkeypatch.setattr(
+            Distribution, "_finalize_license_files", Mock(return_value=None)
+        )
+        if request.param is None:
+            yield self.base_example()
+        else:
+            # Real-world usage
+            config = retrieve_file(request.param)
+            yield setupcfg.apply_configuration(Distribution({}), config)
+
+    @pytest.mark.uses_network
+    def test_equivalent_output(self, tmp_path, dist):
+        """Ensure output from setuptools is equivalent to the one from `pypa/wheel`"""
+        # Generate a METADATA file using pypa/wheel for comparison
+        wheel_metadata = importlib.import_module("wheel.metadata")
+        pkginfo_to_metadata = getattr(wheel_metadata, "pkginfo_to_metadata", None)
+
+        if pkginfo_to_metadata is None:  # pragma: nocover
+            pytest.xfail(
+                "wheel.metadata.pkginfo_to_metadata is undefined, "
+                "(this is likely to be caused by API changes in pypa/wheel"
+            )
+
+        # Generate an simplified "egg-info" dir for pypa/wheel to convert
+        pkg_info = _get_pkginfo(dist)
+        egg_info_dir = tmp_path / "pkg.egg-info"
+        egg_info_dir.mkdir(parents=True)
+        (egg_info_dir / "PKG-INFO").write_text(pkg_info, encoding="utf-8")
+        write_requirements(egg_info(dist), egg_info_dir, egg_info_dir / "requires.txt")
+
+        # Get pypa/wheel generated METADATA but normalize requirements formatting
+        metadata_msg = pkginfo_to_metadata(egg_info_dir, egg_info_dir / "PKG-INFO")
+        metadata_str = _normalize_metadata(metadata_msg)
+        pkg_info_msg = message_from_string(pkg_info)
+        pkg_info_str = _normalize_metadata(pkg_info_msg)
+
+        # Compare setuptools PKG-INFO x pypa/wheel METADATA
+        assert metadata_str == pkg_info_str
+
+        # Make sure it parses/serializes well in pypa/wheel
+        _assert_roundtrip_message(pkg_info)
+
+
+class TestPEP643:
+    STATIC_CONFIG = {
+        "setup.cfg": cleandoc(
+            """
+            [metadata]
+            name = package
+            version = 0.0.1
+            author = Foo Bar
+            author_email = foo@bar.net
+            long_description = Long
+                               description
+            description = Short description
+            keywords = one, two
+            platforms = abcd
+            [options]
+            install_requires = requests
+            """
+        ),
+        "pyproject.toml": cleandoc(
+            """
+            [project]
+            name = "package"
+            version = "0.0.1"
+            authors = [
+              {name = "Foo Bar", email = "foo@bar.net"}
+            ]
+            description = "Short description"
+            readme = {text = "Long\\ndescription", content-type = "text/plain"}
+            keywords = ["one", "two"]
+            dependencies = ["requests"]
+            license = "AGPL-3.0-or-later"
+            [tool.setuptools]
+            provides = ["abcd"]
+            obsoletes = ["abcd"]
+            """
+        ),
+    }
+
+    @pytest.mark.parametrize("file", STATIC_CONFIG.keys())
+    def test_static_config_has_no_dynamic(self, file, tmpdir_cwd):
+        Path(file).write_text(self.STATIC_CONFIG[file], encoding="utf-8")
+        metadata = _get_metadata()
+        assert metadata.get_all("Dynamic") is None
+        assert metadata.get_all("dynamic") is None
+
+    @pytest.mark.parametrize("file", STATIC_CONFIG.keys())
+    @pytest.mark.parametrize(
+        "fields",
+        [
+            # Single dynamic field
+            {"requires-python": ("python_requires", ">=3.12")},
+            {"author-email": ("author_email", "snoopy@peanuts.com")},
+            {"keywords": ("keywords", ["hello", "world"])},
+            {"platform": ("platforms", ["abcd"])},
+            # Multiple dynamic fields
+            {
+                "summary": ("description", "hello world"),
+                "description": ("long_description", "bla bla bla bla"),
+                "requires-dist": ("install_requires", ["hello-world"]),
+            },
+        ],
+    )
+    def test_modified_fields_marked_as_dynamic(self, file, fields, tmpdir_cwd):
+        # We start with a static config
+        Path(file).write_text(self.STATIC_CONFIG[file], encoding="utf-8")
+        dist = _makedist()
+
+        # ... but then we simulate the effects of a plugin modifying the distribution
+        for attr, value in fields.values():
+            # `dist` and `dist.metadata` are complicated...
+            # Some attributes work when set on `dist`, others on `dist.metadata`...
+            # Here we set in both just in case (this also avoids calling `_finalize_*`)
+            setattr(dist, attr, value)
+            setattr(dist.metadata, attr, value)
+
+        # Then we should be able to list the modified fields as Dynamic
+        metadata = _get_metadata(dist)
+        assert set(metadata.get_all("Dynamic")) == set(fields)
+
+    @pytest.mark.parametrize(
+        "extra_toml",
+        [
+            "# Let setuptools autofill license-files",
+            "license-files = ['LICENSE*', 'AUTHORS*', 'NOTICE']",
+        ],
+    )
+    def test_license_files_dynamic(self, extra_toml, tmpdir_cwd):
+        # For simplicity (and for the time being) setuptools is not making
+        # any special handling to guarantee `License-File` is considered static.
+        # Instead we rely in the fact that, although suboptimal, it is OK to have
+        # it as dynamics, as per:
+        # https://github.com/pypa/setuptools/issues/4629#issuecomment-2331233677
+        files = {
+            "pyproject.toml": self.STATIC_CONFIG["pyproject.toml"].replace(
+                'license = "AGPL-3.0-or-later"',
+                f"dynamic = ['license']\n{extra_toml}",
+            ),
+            "LICENSE.md": "--- mock license ---",
+            "NOTICE": "--- mock notice ---",
+            "AUTHORS.txt": "--- me ---",
+        }
+        # Sanity checks:
+        assert extra_toml in files["pyproject.toml"]
+        assert 'license = "AGPL-3.0-or-later"' not in extra_toml
+
+        jaraco.path.build(files)
+        dist = _makedist(license_expression="AGPL-3.0-or-later")
+        metadata = _get_metadata(dist)
+        assert set(metadata.get_all("Dynamic")) == {
+            'license-file',
+            'license-expression',
+        }
+        assert metadata.get("License-Expression") == "AGPL-3.0-or-later"
+        assert set(metadata.get_all("License-File")) == {
+            "NOTICE",
+            "AUTHORS.txt",
+            "LICENSE.md",
+        }
+
+
+def _makedist(**attrs):
+    dist = Distribution(attrs)
+    dist.parse_config_files()
+    return dist
+
+
+def _assert_roundtrip_message(metadata: str) -> None:
+    """Emulate the way wheel.bdist_wheel parses and regenerates the message,
+    then ensures the metadata generated by setuptools is compatible.
+    """
+    with io.StringIO(metadata) as buffer:
+        msg = Parser(EmailMessage).parse(buffer)
+
+    serialization_policy = EmailPolicy(
+        utf8=True,
+        mangle_from_=False,
+        max_line_length=0,
+    )
+    with io.BytesIO() as buffer:
+        out = io.TextIOWrapper(buffer, encoding="utf-8")
+        Generator(out, policy=serialization_policy).flatten(msg)
+        out.flush()
+        regenerated = buffer.getvalue()
+
+    raw_metadata = bytes(metadata, "utf-8")
+    # Normalise newlines to avoid test errors on Windows:
+    raw_metadata = b"\n".join(raw_metadata.splitlines())
+    regenerated = b"\n".join(regenerated.splitlines())
+    assert regenerated == raw_metadata
+
+
+def _normalize_metadata(msg: Message) -> str:
+    """Allow equivalent metadata to be compared directly"""
+    # The main challenge regards the requirements and extras.
+    # Both setuptools and wheel already apply some level of normalization
+    # but they differ regarding which character is chosen, according to the
+    # following spec it should be "-":
+    # https://packaging.python.org/en/latest/specifications/name-normalization/
+
+    # Related issues:
+    # https://github.com/pypa/packaging/issues/845
+    # https://github.com/pypa/packaging/issues/644#issuecomment-2429813968
+
+    extras = {x.replace("_", "-"): x for x in msg.get_all("Provides-Extra", [])}
+    reqs = [
+        _normalize_req(req, extras)
+        for req in _reqs.parse(msg.get_all("Requires-Dist", []))
+    ]
+    del msg["Requires-Dist"]
+    del msg["Provides-Extra"]
+
+    # Ensure consistent ord
+    for req in sorted(reqs):
+        msg["Requires-Dist"] = req
+    for extra in sorted(extras):
+        msg["Provides-Extra"] = extra
+
+    # TODO: Handle lack of PEP 643 implementation in pypa/wheel?
+    del msg["Metadata-Version"]
+
+    return msg.as_string()
+
+
+def _normalize_req(req: Requirement, extras: dict[str, str]) -> str:
+    """Allow equivalent requirement objects to be compared directly"""
+    as_str = str(req).replace(req.name, req.name.replace("_", "-"))
+    for norm, orig in extras.items():
+        as_str = as_str.replace(orig, norm)
+    return as_str
+
+
+def _get_pkginfo(dist: Distribution):
+    with io.StringIO() as fp:
+        dist.metadata.write_pkg_file(fp)
+        return fp.getvalue()
+
+
+def _get_metadata(dist: Distribution | None = None):
+    return message_from_string(_get_pkginfo(dist or _makedist()))
+
+
+def _valid_metadata(text: str) -> bool:
+    metadata = Metadata.from_email(text, validate=True)  # can raise exceptions
+    return metadata is not None
diff --git a/setuptools/tests/test_depends.py b/setuptools/tests/test_depends.py
new file mode 100644
index 0000000000..1714c041f7
--- /dev/null
+++ b/setuptools/tests/test_depends.py
@@ -0,0 +1,15 @@
+import sys
+
+from setuptools import depends
+
+
+class TestGetModuleConstant:
+    def test_basic(self):
+        """
+        Invoke get_module_constant on a module in
+        the test package.
+        """
+        mod_name = 'setuptools.tests.mod_with_constant'
+        val = depends.get_module_constant(mod_name, 'value')
+        assert val == 'three, sir!'
+        assert 'setuptools.tests.mod_with_constant' not in sys.modules
diff --git a/setuptools/tests/test_develop.py b/setuptools/tests/test_develop.py
new file mode 100644
index 0000000000..67495b89c8
--- /dev/null
+++ b/setuptools/tests/test_develop.py
@@ -0,0 +1,111 @@
+"""develop tests"""
+
+import os
+import platform
+import subprocess
+import sys
+
+import pytest
+
+from setuptools._path import paths_on_pythonpath
+
+from . import contexts, namespaces
+
+SETUP_PY = """\
+from setuptools import setup
+
+setup(name='foo',
+    packages=['foo'],
+)
+"""
+
+INIT_PY = """print "foo"
+"""
+
+
+@pytest.fixture
+def temp_user(monkeypatch):
+    with contexts.tempdir() as user_base:
+        with contexts.tempdir() as user_site:
+            monkeypatch.setattr('site.USER_BASE', user_base)
+            monkeypatch.setattr('site.USER_SITE', user_site)
+            yield
+
+
+@pytest.fixture
+def test_env(tmpdir, temp_user):
+    target = tmpdir
+    foo = target.mkdir('foo')
+    setup = target / 'setup.py'
+    if setup.isfile():
+        raise ValueError(dir(target))
+    with setup.open('w') as f:
+        f.write(SETUP_PY)
+    init = foo / '__init__.py'
+    with init.open('w') as f:
+        f.write(INIT_PY)
+    with target.as_cwd():
+        yield target
+
+
+class TestNamespaces:
+    @staticmethod
+    def install_develop(src_dir, target):
+        develop_cmd = [
+            sys.executable,
+            'setup.py',
+            'develop',
+            '--install-dir',
+            str(target),
+        ]
+        with src_dir.as_cwd():
+            with paths_on_pythonpath([str(target)]):
+                subprocess.check_call(develop_cmd)
+
+    @pytest.mark.skipif(
+        bool(os.environ.get("APPVEYOR")),
+        reason="https://github.com/pypa/setuptools/issues/851",
+    )
+    @pytest.mark.skipif(
+        platform.python_implementation() == 'PyPy',
+        reason="https://github.com/pypa/setuptools/issues/1202",
+    )
+    def test_namespace_package_importable(self, tmpdir):
+        """
+        Installing two packages sharing the same namespace, one installed
+        naturally using pip or `--single-version-externally-managed`
+        and the other installed using `develop` should leave the namespace
+        in tact and both packages reachable by import.
+        """
+        pkg_A = namespaces.build_namespace_package(tmpdir, 'myns.pkgA')
+        pkg_B = namespaces.build_namespace_package(tmpdir, 'myns.pkgB')
+        target = tmpdir / 'packages'
+        # use pip to install to the target directory
+        install_cmd = [
+            sys.executable,
+            '-m',
+            'pip',
+            'install',
+            str(pkg_A),
+            '-t',
+            str(target),
+        ]
+        subprocess.check_call(install_cmd)
+        self.install_develop(pkg_B, target)
+        namespaces.make_site_dir(target)
+        try_import = [
+            sys.executable,
+            '-c',
+            'import myns.pkgA; import myns.pkgB',
+        ]
+        with paths_on_pythonpath([str(target)]):
+            subprocess.check_call(try_import)
+
+        # additionally ensure that pkg_resources import works
+        pkg_resources_imp = [
+            sys.executable,
+            '-c',
+            'import pkg_resources',
+        ]
+        with paths_on_pythonpath([str(target)]):
+            subprocess.check_call(pkg_resources_imp)
diff --git a/setuptools/tests/test_dist.py b/setuptools/tests/test_dist.py
new file mode 100644
index 0000000000..e65ab310e7
--- /dev/null
+++ b/setuptools/tests/test_dist.py
@@ -0,0 +1,278 @@
+import os
+import re
+import urllib.parse
+import urllib.request
+
+import pytest
+
+from setuptools import Distribution
+from setuptools.dist import check_package_data, check_specifier
+
+from .test_easy_install import make_trivial_sdist
+from .test_find_packages import ensure_files
+from .textwrap import DALS
+
+from distutils.errors import DistutilsSetupError
+
+
+def test_dist_fetch_build_egg(tmpdir):
+    """
+    Check multiple calls to `Distribution.fetch_build_egg` work as expected.
+    """
+    index = tmpdir.mkdir('index')
+    index_url = urllib.parse.urljoin('file://', urllib.request.pathname2url(str(index)))
+
+    def sdist_with_index(distname, version):
+        dist_dir = index.mkdir(distname)
+        dist_sdist = f'{distname}-{version}.tar.gz'
+        make_trivial_sdist(str(dist_dir.join(dist_sdist)), distname, version)
+        with dist_dir.join('index.html').open('w') as fp:
+            fp.write(
+                DALS(
+                    """
+                
+                {dist_sdist}
    
+                
+                """
+                ).format(dist_sdist=dist_sdist)
+            )
+
+    sdist_with_index('barbazquux', '3.2.0')
+    sdist_with_index('barbazquux-runner', '2.11.1')
+    with tmpdir.join('setup.cfg').open('w') as fp:
+        fp.write(
+            DALS(
+                """
+            [easy_install]
+            index_url = {index_url}
+            """
+            ).format(index_url=index_url)
+        )
+    reqs = """
+    barbazquux-runner
+    barbazquux
+    """.split()
+    with tmpdir.as_cwd():
+        dist = Distribution()
+        dist.parse_config_files()
+        resolved_dists = [dist.fetch_build_egg(r) for r in reqs]
+    assert [dist.key for dist in resolved_dists if dist] == reqs
+
+
+EXAMPLE_BASE_INFO = dict(
+    name="package",
+    version="0.0.1",
+    author="Foo Bar",
+    author_email="foo@bar.net",
+    long_description="Long\ndescription",
+    description="Short description",
+    keywords=["one", "two"],
+)
+
+
+def test_provides_extras_deterministic_order():
+    attrs = dict(extras_require=dict(a=['foo'], b=['bar']))
+    dist = Distribution(attrs)
+    assert list(dist.metadata.provides_extras) == ['a', 'b']
+    attrs['extras_require'] = dict(reversed(attrs['extras_require'].items()))
+    dist = Distribution(attrs)
+    assert list(dist.metadata.provides_extras) == ['b', 'a']
+
+
+CHECK_PACKAGE_DATA_TESTS = (
+    # Valid.
+    (
+        {
+            '': ['*.txt', '*.rst'],
+            'hello': ['*.msg'],
+        },
+        None,
+    ),
+    # Not a dictionary.
+    (
+        (
+            ('', ['*.txt', '*.rst']),
+            ('hello', ['*.msg']),
+        ),
+        (
+            "'package_data' must be a dictionary mapping package"
+            " names to lists of string wildcard patterns"
+        ),
+    ),
+    # Invalid key type.
+    (
+        {
+            400: ['*.txt', '*.rst'],
+        },
+        ("keys of 'package_data' dict must be strings (got 400)"),
+    ),
+    # Invalid value type.
+    (
+        {
+            'hello': '*.msg',
+        },
+        (
+            "\"values of 'package_data' dict\" must be of type "
+            " (got '*.msg')"
+        ),
+    ),
+    # Invalid value type (generators are single use)
+    (
+        {
+            'hello': (x for x in "generator"),
+        },
+        (
+            "\"values of 'package_data' dict\" must be of type "
+            " (got =3.0, !=3.1'}
+    dist = Distribution(attrs)
+    check_specifier(dist, attrs, attrs['python_requires'])
+
+    attrs = {'name': 'foo', 'python_requires': ['>=3.0', '!=3.1']}
+    dist = Distribution(attrs)
+    check_specifier(dist, attrs, attrs['python_requires'])
+
+    # invalid specifier value
+    attrs = {'name': 'foo', 'python_requires': '>=invalid-version'}
+    with pytest.raises(DistutilsSetupError):
+        dist = Distribution(attrs)
+
+
+def test_metadata_name():
+    with pytest.raises(DistutilsSetupError, match='missing.*name'):
+        Distribution()._validate_metadata()
+
+
+@pytest.mark.parametrize(
+    ('dist_name', 'py_module'),
+    [
+        ("my.pkg", "my_pkg"),
+        ("my-pkg", "my_pkg"),
+        ("my_pkg", "my_pkg"),
+        ("pkg", "pkg"),
+    ],
+)
+def test_dist_default_py_modules(tmp_path, dist_name, py_module):
+    (tmp_path / f"{py_module}.py").touch()
+
+    (tmp_path / "setup.py").touch()
+    (tmp_path / "noxfile.py").touch()
+    # ^-- make sure common tool files are ignored
+
+    attrs = {**EXAMPLE_BASE_INFO, "name": dist_name, "src_root": str(tmp_path)}
+    # Find `py_modules` corresponding to dist_name if not given
+    dist = Distribution(attrs)
+    dist.set_defaults()
+    assert dist.py_modules == [py_module]
+    # When `py_modules` is given, don't do anything
+    dist = Distribution({**attrs, "py_modules": ["explicity_py_module"]})
+    dist.set_defaults()
+    assert dist.py_modules == ["explicity_py_module"]
+    # When `packages` is given, don't do anything
+    dist = Distribution({**attrs, "packages": ["explicity_package"]})
+    dist.set_defaults()
+    assert not dist.py_modules
+
+
+@pytest.mark.parametrize(
+    ('dist_name', 'package_dir', 'package_files', 'packages'),
+    [
+        ("my.pkg", None, ["my_pkg/__init__.py", "my_pkg/mod.py"], ["my_pkg"]),
+        ("my-pkg", None, ["my_pkg/__init__.py", "my_pkg/mod.py"], ["my_pkg"]),
+        ("my_pkg", None, ["my_pkg/__init__.py", "my_pkg/mod.py"], ["my_pkg"]),
+        ("my.pkg", None, ["my/pkg/__init__.py"], ["my", "my.pkg"]),
+        (
+            "my_pkg",
+            None,
+            ["src/my_pkg/__init__.py", "src/my_pkg2/__init__.py"],
+            ["my_pkg", "my_pkg2"],
+        ),
+        (
+            "my_pkg",
+            {"pkg": "lib", "pkg2": "lib2"},
+            ["lib/__init__.py", "lib/nested/__init__.pyt", "lib2/__init__.py"],
+            ["pkg", "pkg.nested", "pkg2"],
+        ),
+    ],
+)
+def test_dist_default_packages(
+    tmp_path, dist_name, package_dir, package_files, packages
+):
+    ensure_files(tmp_path, package_files)
+
+    (tmp_path / "setup.py").touch()
+    (tmp_path / "noxfile.py").touch()
+    # ^-- should not be included by default
+
+    attrs = {
+        **EXAMPLE_BASE_INFO,
+        "name": dist_name,
+        "src_root": str(tmp_path),
+        "package_dir": package_dir,
+    }
+    # Find `packages` either corresponding to dist_name or inside src
+    dist = Distribution(attrs)
+    dist.set_defaults()
+    assert not dist.py_modules
+    assert not dist.py_modules
+    assert set(dist.packages) == set(packages)
+    # When `py_modules` is given, don't do anything
+    dist = Distribution({**attrs, "py_modules": ["explicit_py_module"]})
+    dist.set_defaults()
+    assert not dist.packages
+    assert set(dist.py_modules) == {"explicit_py_module"}
+    # When `packages` is given, don't do anything
+    dist = Distribution({**attrs, "packages": ["explicit_package"]})
+    dist.set_defaults()
+    assert not dist.py_modules
+    assert set(dist.packages) == {"explicit_package"}
+
+
+@pytest.mark.parametrize(
+    ('dist_name', 'package_dir', 'package_files'),
+    [
+        ("my.pkg.nested", None, ["my/pkg/nested/__init__.py"]),
+        ("my.pkg", None, ["my/pkg/__init__.py", "my/pkg/file.py"]),
+        ("my_pkg", None, ["my_pkg.py"]),
+        ("my_pkg", None, ["my_pkg/__init__.py", "my_pkg/nested/__init__.py"]),
+        ("my_pkg", None, ["src/my_pkg/__init__.py", "src/my_pkg/nested/__init__.py"]),
+        (
+            "my_pkg",
+            {"my_pkg": "lib", "my_pkg.lib2": "lib2"},
+            ["lib/__init__.py", "lib/nested/__init__.pyt", "lib2/__init__.py"],
+        ),
+        # Should not try to guess a name from multiple py_modules/packages
+        ("UNKNOWN", None, ["src/mod1.py", "src/mod2.py"]),
+        ("UNKNOWN", None, ["src/pkg1/__ini__.py", "src/pkg2/__init__.py"]),
+    ],
+)
+def test_dist_default_name(tmp_path, dist_name, package_dir, package_files):
+    """Make sure dist.name is discovered from packages/py_modules"""
+    ensure_files(tmp_path, package_files)
+    attrs = {
+        **EXAMPLE_BASE_INFO,
+        "src_root": "/".join(os.path.split(tmp_path)),  # POSIX-style
+        "package_dir": package_dir,
+    }
+    del attrs["name"]
+
+    dist = Distribution(attrs)
+    dist.set_defaults()
+    assert dist.py_modules or dist.packages
+    assert dist.get_name() == dist_name
diff --git a/setuptools/tests/test_dist_info.py b/setuptools/tests/test_dist_info.py
new file mode 100644
index 0000000000..426694e019
--- /dev/null
+++ b/setuptools/tests/test_dist_info.py
@@ -0,0 +1,210 @@
+"""Test .dist-info style distributions."""
+
+import pathlib
+import re
+import shutil
+import subprocess
+import sys
+from functools import partial
+
+import pytest
+
+import pkg_resources
+from setuptools.archive_util import unpack_archive
+
+from .textwrap import DALS
+
+read = partial(pathlib.Path.read_text, encoding="utf-8")
+
+
+class TestDistInfo:
+    metadata_base = DALS(
+        """
+        Metadata-Version: 1.2
+        Requires-Dist: splort (==4)
+        Provides-Extra: baz
+        Requires-Dist: quux (>=1.1); extra == 'baz'
+        """
+    )
+
+    @classmethod
+    def build_metadata(cls, **kwargs):
+        lines = ('{key}: {value}\n'.format(**locals()) for key, value in kwargs.items())
+        return cls.metadata_base + ''.join(lines)
+
+    @pytest.fixture
+    def metadata(self, tmpdir):
+        dist_info_name = 'VersionedDistribution-2.718.dist-info'
+        versioned = tmpdir / dist_info_name
+        versioned.mkdir()
+        filename = versioned / 'METADATA'
+        content = self.build_metadata(
+            Name='VersionedDistribution',
+        )
+        filename.write_text(content, encoding='utf-8')
+
+        dist_info_name = 'UnversionedDistribution.dist-info'
+        unversioned = tmpdir / dist_info_name
+        unversioned.mkdir()
+        filename = unversioned / 'METADATA'
+        content = self.build_metadata(
+            Name='UnversionedDistribution',
+            Version='0.3',
+        )
+        filename.write_text(content, encoding='utf-8')
+
+        return str(tmpdir)
+
+    def test_distinfo(self, metadata):
+        dists = dict(
+            (d.project_name, d) for d in pkg_resources.find_distributions(metadata)
+        )
+
+        assert len(dists) == 2, dists
+
+        unversioned = dists['UnversionedDistribution']
+        versioned = dists['VersionedDistribution']
+
+        assert versioned.version == '2.718'  # from filename
+        assert unversioned.version == '0.3'  # from METADATA
+
+    def test_conditional_dependencies(self, metadata):
+        specs = 'splort==4', 'quux>=1.1'
+        requires = list(map(pkg_resources.Requirement.parse, specs))
+
+        for d in pkg_resources.find_distributions(metadata):
+            assert d.requires() == requires[:1]
+            assert d.requires(extras=('baz',)) == [
+                requires[0],
+                pkg_resources.Requirement.parse('quux>=1.1;extra=="baz"'),
+            ]
+            assert d.extras == ['baz']
+
+    def test_invalid_version(self, tmp_path):
+        """
+        Supplying an invalid version crashes dist_info.
+        """
+        config = "[metadata]\nname=proj\nversion=42\n[egg_info]\ntag_build=invalid!!!\n"
+        (tmp_path / "setup.cfg").write_text(config, encoding="utf-8")
+        msg = re.compile("invalid version", re.M | re.I)
+        proc = run_command_inner("dist_info", cwd=tmp_path, check=False)
+        assert proc.returncode
+        assert msg.search(proc.stdout)
+        assert not list(tmp_path.glob("*.dist-info"))
+
+    def test_tag_arguments(self, tmp_path):
+        config = """
+        [metadata]
+        name=proj
+        version=42
+        [egg_info]
+        tag_date=1
+        tag_build=.post
+        """
+        (tmp_path / "setup.cfg").write_text(config, encoding="utf-8")
+
+        print(run_command("dist_info", "--no-date", cwd=tmp_path))
+        dist_info = next(tmp_path.glob("*.dist-info"))
+        assert dist_info.name.startswith("proj-42")
+        shutil.rmtree(dist_info)
+
+        print(run_command("dist_info", "--tag-build", ".a", cwd=tmp_path))
+        dist_info = next(tmp_path.glob("*.dist-info"))
+        assert dist_info.name.startswith("proj-42a")
+
+    @pytest.mark.parametrize("keep_egg_info", (False, True))
+    def test_output_dir(self, tmp_path, keep_egg_info):
+        config = "[metadata]\nname=proj\nversion=42\n"
+        (tmp_path / "setup.cfg").write_text(config, encoding="utf-8")
+        out = tmp_path / "__out"
+        out.mkdir()
+        opts = ["--keep-egg-info"] if keep_egg_info else []
+        run_command("dist_info", "--output-dir", out, *opts, cwd=tmp_path)
+        assert len(list(out.glob("*.dist-info"))) == 1
+        assert len(list(tmp_path.glob("*.dist-info"))) == 0
+        expected_egg_info = int(keep_egg_info)
+        assert len(list(out.glob("*.egg-info"))) == expected_egg_info
+        assert len(list(tmp_path.glob("*.egg-info"))) == 0
+        assert len(list(out.glob("*.__bkp__"))) == 0
+        assert len(list(tmp_path.glob("*.__bkp__"))) == 0
+
+
+class TestWheelCompatibility:
+    """Make sure the .dist-info directory produced with the ``dist_info`` command
+    is the same as the one produced by ``bdist_wheel``.
+    """
+
+    SETUPCFG = DALS(
+        """
+    [metadata]
+    name = {name}
+    version = {version}
+
+    [options]
+    install_requires =
+        foo>=12; sys_platform != "linux"
+
+    [options.extras_require]
+    test = pytest
+
+    [options.entry_points]
+    console_scripts =
+        executable-name = my_package.module:function
+    discover =
+        myproj = my_package.other_module:function
+    """
+    )
+
+    EGG_INFO_OPTS = [
+        # Related: #3088 #2872
+        ("", ""),
+        (".post", "[egg_info]\ntag_build = post\n"),
+        (".post", "[egg_info]\ntag_build = .post\n"),
+        (".post", "[egg_info]\ntag_build = post\ntag_date = 1\n"),
+        (".dev", "[egg_info]\ntag_build = .dev\n"),
+        (".dev", "[egg_info]\ntag_build = .dev\ntag_date = 1\n"),
+        ("a1", "[egg_info]\ntag_build = .a1\n"),
+        ("+local", "[egg_info]\ntag_build = +local\n"),
+    ]
+
+    @pytest.mark.parametrize("name", "my-proj my_proj my.proj My.Proj".split())
+    @pytest.mark.parametrize("version", ["0.42.13"])
+    @pytest.mark.parametrize(("suffix", "cfg"), EGG_INFO_OPTS)
+    def test_dist_info_is_the_same_as_in_wheel(
+        self, name, version, tmp_path, suffix, cfg
+    ):
+        config = self.SETUPCFG.format(name=name, version=version) + cfg
+
+        for i in "dir_wheel", "dir_dist":
+            (tmp_path / i).mkdir()
+            (tmp_path / i / "setup.cfg").write_text(config, encoding="utf-8")
+
+        run_command("bdist_wheel", cwd=tmp_path / "dir_wheel")
+        wheel = next(tmp_path.glob("dir_wheel/dist/*.whl"))
+        unpack_archive(wheel, tmp_path / "unpack")
+        wheel_dist_info = next(tmp_path.glob("unpack/*.dist-info"))
+
+        run_command("dist_info", cwd=tmp_path / "dir_dist")
+        dist_info = next(tmp_path.glob("dir_dist/*.dist-info"))
+
+        assert dist_info.name == wheel_dist_info.name
+        assert dist_info.name.startswith(f"my_proj-{version}{suffix}")
+        for file in "METADATA", "entry_points.txt":
+            assert read(dist_info / file) == read(wheel_dist_info / file)
+
+
+def run_command_inner(*cmd, **kwargs):
+    opts = {
+        "stderr": subprocess.STDOUT,
+        "stdout": subprocess.PIPE,
+        "text": True,
+        "encoding": "utf-8",
+        "check": True,
+        **kwargs,
+    }
+    cmd = [sys.executable, "-c", "__import__('setuptools').setup()", *map(str, cmd)]
+    return subprocess.run(cmd, **opts)
+
+
+def run_command(*args, **kwargs):
+    return run_command_inner(*args, **kwargs).stdout
diff --git a/setuptools/tests/test_distutils_adoption.py b/setuptools/tests/test_distutils_adoption.py
new file mode 100644
index 0000000000..f99a588499
--- /dev/null
+++ b/setuptools/tests/test_distutils_adoption.py
@@ -0,0 +1,198 @@
+import os
+import platform
+import sys
+import textwrap
+
+import pytest
+
+IS_PYPY = '__pypy__' in sys.builtin_module_names
+
+_TEXT_KWARGS = {"text": True, "encoding": "utf-8"}  # For subprocess.run
+
+
+def win_sr(env):
+    """
+    On Windows, SYSTEMROOT must be present to avoid
+
+    > Fatal Python error: _Py_HashRandomization_Init: failed to
+    > get random numbers to initialize Python
+    """
+    if env and platform.system() == 'Windows':
+        env['SYSTEMROOT'] = os.environ['SYSTEMROOT']
+    return env
+
+
+def find_distutils(venv, imports='distutils', env=None, **kwargs):
+    py_cmd = 'import {imports}; print(distutils.__file__)'.format(**locals())
+    cmd = ['python', '-c', py_cmd]
+    return venv.run(cmd, env=win_sr(env), **_TEXT_KWARGS, **kwargs)
+
+
+def count_meta_path(venv, env=None):
+    py_cmd = textwrap.dedent(
+        """
+        import sys
+        is_distutils = lambda finder: finder.__class__.__name__ == "DistutilsMetaFinder"
+        print(len(list(filter(is_distutils, sys.meta_path))))
+        """
+    )
+    cmd = ['python', '-c', py_cmd]
+    return int(venv.run(cmd, env=win_sr(env), **_TEXT_KWARGS))
+
+
+skip_without_stdlib_distutils = pytest.mark.skipif(
+    sys.version_info >= (3, 12),
+    reason='stdlib distutils is removed from Python 3.12+',
+)
+
+
+@skip_without_stdlib_distutils
+def test_distutils_stdlib(venv):
+    """
+    Ensure stdlib distutils is used when appropriate.
+    """
+    env = dict(SETUPTOOLS_USE_DISTUTILS='stdlib')
+    assert venv.name not in find_distutils(venv, env=env).split(os.sep)
+    assert count_meta_path(venv, env=env) == 0
+
+
+def test_distutils_local_with_setuptools(venv):
+    """
+    Ensure local distutils is used when appropriate.
+    """
+    env = dict(SETUPTOOLS_USE_DISTUTILS='local')
+    loc = find_distutils(venv, imports='setuptools, distutils', env=env)
+    assert venv.name in loc.split(os.sep)
+    assert count_meta_path(venv, env=env) <= 1
+
+
+@pytest.mark.xfail('IS_PYPY', reason='pypy imports distutils on startup')
+def test_distutils_local(venv):
+    """
+    Even without importing, the setuptools-local copy of distutils is
+    preferred.
+    """
+    env = dict(SETUPTOOLS_USE_DISTUTILS='local')
+    assert venv.name in find_distutils(venv, env=env).split(os.sep)
+    assert count_meta_path(venv, env=env) <= 1
+
+
+def test_pip_import(venv):
+    """
+    Ensure pip can be imported.
+    Regression test for #3002.
+    """
+    cmd = ['python', '-c', 'import pip']
+    venv.run(cmd, **_TEXT_KWARGS)
+
+
+def test_distutils_has_origin():
+    """
+    Distutils module spec should have an origin. #2990.
+    """
+    assert __import__('distutils').__spec__.origin
+
+
+ENSURE_IMPORTS_ARE_NOT_DUPLICATED = r"""
+# Depending on the importlib machinery and _distutils_hack, some imports are
+# duplicated resulting in different module objects being loaded, which prevents
+# patches as shown in #3042.
+# This script provides a way of verifying if this duplication is happening.
+
+from distutils import cmd
+import distutils.command.sdist as sdist
+
+# import last to prevent caching
+from distutils import {imported_module}
+
+for mod in (cmd, sdist):
+    assert mod.{imported_module} == {imported_module}, (
+        f"\n{{mod.dir_util}}\n!=\n{{{imported_module}}}"
+    )
+
+print("success")
+"""
+
+
+@pytest.mark.usefixtures("tmpdir_cwd")
+@pytest.mark.parametrize(
+    ('distutils_version', 'imported_module'),
+    [
+        pytest.param("stdlib", "dir_util", marks=skip_without_stdlib_distutils),
+        pytest.param("stdlib", "file_util", marks=skip_without_stdlib_distutils),
+        pytest.param("stdlib", "archive_util", marks=skip_without_stdlib_distutils),
+        ("local", "dir_util"),
+        ("local", "file_util"),
+        ("local", "archive_util"),
+    ],
+)
+def test_modules_are_not_duplicated_on_import(distutils_version, imported_module, venv):
+    env = dict(SETUPTOOLS_USE_DISTUTILS=distutils_version)
+    script = ENSURE_IMPORTS_ARE_NOT_DUPLICATED.format(imported_module=imported_module)
+    cmd = ['python', '-c', script]
+    output = venv.run(cmd, env=win_sr(env), **_TEXT_KWARGS).strip()
+    assert output == "success"
+
+
+ENSURE_LOG_IMPORT_IS_NOT_DUPLICATED = r"""
+import types
+import distutils.dist as dist
+from distutils import log
+if isinstance(dist.log, types.ModuleType):
+    assert dist.log == log, f"\n{dist.log}\n!=\n{log}"
+print("success")
+"""
+
+
+@pytest.mark.usefixtures("tmpdir_cwd")
+@pytest.mark.parametrize(
+    "distutils_version",
+    [
+        "local",
+        pytest.param("stdlib", marks=skip_without_stdlib_distutils),
+    ],
+)
+def test_log_module_is_not_duplicated_on_import(distutils_version, venv):
+    env = dict(SETUPTOOLS_USE_DISTUTILS=distutils_version)
+    cmd = ['python', '-c', ENSURE_LOG_IMPORT_IS_NOT_DUPLICATED]
+    output = venv.run(cmd, env=win_sr(env), **_TEXT_KWARGS).strip()
+    assert output == "success"
+
+
+ENSURE_CONSISTENT_ERROR_FROM_MODIFIED_PY = r"""
+from setuptools.modified import newer
+from {imported_module}.errors import DistutilsError
+
+# Can't use pytest.raises in this context
+try:
+    newer("", "")
+except DistutilsError:
+    print("success")
+else:
+    raise AssertionError("Expected to raise")
+"""
+
+
+@pytest.mark.usefixtures("tmpdir_cwd")
+@pytest.mark.parametrize(
+    ('distutils_version', 'imported_module'),
+    [
+        ("local", "distutils"),
+        # Unfortunately we still get ._distutils.errors.DistutilsError with SETUPTOOLS_USE_DISTUTILS=stdlib
+        # But that's a deprecated use-case we don't mind not fully supporting in newer code
+        pytest.param(
+            "stdlib", "setuptools._distutils", marks=skip_without_stdlib_distutils
+        ),
+    ],
+)
+def test_consistent_error_from_modified_py(distutils_version, imported_module, venv):
+    env = dict(SETUPTOOLS_USE_DISTUTILS=distutils_version)
+    cmd = [
+        'python',
+        '-c',
+        ENSURE_CONSISTENT_ERROR_FROM_MODIFIED_PY.format(
+            imported_module=imported_module
+        ),
+    ]
+    output = venv.run(cmd, env=win_sr(env), **_TEXT_KWARGS).strip()
+    assert output == "success"
diff --git a/setuptools/tests/test_easy_install.py b/setuptools/tests/test_easy_install.py
new file mode 100644
index 0000000000..e5fb3276f5
--- /dev/null
+++ b/setuptools/tests/test_easy_install.py
@@ -0,0 +1,703 @@
+"""Easy install Tests"""
+
+import io
+import itertools
+import logging
+import os
+import re
+import site
+import sys
+import tarfile
+import tempfile
+import time
+import warnings
+import zipfile
+from typing import NamedTuple
+from unittest import mock
+
+import pytest
+
+import pkg_resources
+import setuptools.command.easy_install as ei
+from pkg_resources import Distribution as PRDistribution, normalize_path
+from setuptools._normalization import safer_name
+from setuptools.command.easy_install import PthDistributions
+from setuptools.dist import Distribution
+
+from .textwrap import DALS
+
+import distutils.errors
+
+
+@pytest.fixture(autouse=True)
+def pip_disable_index(monkeypatch):
+    """
+    Important: Disable the default index for pip to avoid
+    querying packages in the index and potentially resolving
+    and installing packages there.
+    """
+    monkeypatch.setenv('PIP_NO_INDEX', 'true')
+
+
+class FakeDist:
+    def get_entry_map(self, group):
+        if group != 'console_scripts':
+            return {}
+        return {'name': 'ep'}
+
+    def as_requirement(self):
+        return 'spec'
+
+
+SETUP_PY = DALS(
+    """
+    from setuptools import setup
+
+    setup()
+    """
+)
+
+
+class TestEasyInstallTest:
+    def test_get_script_args(self):
+        header = ei.CommandSpec.best().from_environment().as_header()
+        dist = FakeDist()
+        args = next(ei.ScriptWriter.get_args(dist))
+        _name, script = itertools.islice(args, 2)
+        assert script.startswith(header)
+        assert "'spec'" in script
+        assert "'console_scripts'" in script
+        assert "'name'" in script
+        assert re.search('^# EASY-INSTALL-ENTRY-SCRIPT', script, flags=re.MULTILINE)
+
+    def test_no_find_links(self):
+        # new option '--no-find-links', that blocks find-links added at
+        # the project level
+        dist = Distribution()
+        cmd = ei.easy_install(dist)
+        cmd.check_pth_processing = lambda: True
+        cmd.no_find_links = True
+        cmd.find_links = ['link1', 'link2']
+        cmd.install_dir = os.path.join(tempfile.mkdtemp(), 'ok')
+        cmd.args = ['ok']
+        cmd.ensure_finalized()
+        assert cmd.package_index.scanned_urls == {}
+
+        # let's try without it (default behavior)
+        cmd = ei.easy_install(dist)
+        cmd.check_pth_processing = lambda: True
+        cmd.find_links = ['link1', 'link2']
+        cmd.install_dir = os.path.join(tempfile.mkdtemp(), 'ok')
+        cmd.args = ['ok']
+        cmd.ensure_finalized()
+        keys = sorted(cmd.package_index.scanned_urls.keys())
+        assert keys == ['link1', 'link2']
+
+    def test_write_exception(self):
+        """
+        Test that `cant_write_to_target` is rendered as a DistutilsError.
+        """
+        dist = Distribution()
+        cmd = ei.easy_install(dist)
+        cmd.install_dir = os.getcwd()
+        with pytest.raises(distutils.errors.DistutilsError):
+            cmd.cant_write_to_target()
+
+    def test_all_site_dirs(self, monkeypatch):
+        """
+        get_site_dirs should always return site dirs reported by
+        site.getsitepackages.
+        """
+        path = normalize_path('/setuptools/test/site-packages')
+
+        def mock_gsp():
+            return [path]
+
+        monkeypatch.setattr(site, 'getsitepackages', mock_gsp, raising=False)
+        assert path in ei.get_site_dirs()
+
+    def test_all_site_dirs_works_without_getsitepackages(self, monkeypatch):
+        monkeypatch.delattr(site, 'getsitepackages', raising=False)
+        assert ei.get_site_dirs()
+
+    @pytest.fixture
+    def sdist_unicode(self, tmpdir):
+        files = [
+            (
+                'setup.py',
+                DALS(
+                    """
+                    import setuptools
+                    setuptools.setup(
+                        name="setuptools-test-unicode",
+                        version="1.0",
+                        packages=["mypkg"],
+                        include_package_data=True,
+                    )
+                    """
+                ),
+            ),
+            (
+                'mypkg/__init__.py',
+                "",
+            ),
+            (
+                'mypkg/☃.txt',
+                "",
+            ),
+        ]
+        sdist_name = 'setuptools-test-unicode-1.0.zip'
+        sdist = tmpdir / sdist_name
+        # can't use make_sdist, because the issue only occurs
+        #  with zip sdists.
+        sdist_zip = zipfile.ZipFile(str(sdist), 'w')
+        for filename, content in files:
+            sdist_zip.writestr(filename, content)
+        sdist_zip.close()
+        return str(sdist)
+
+    @pytest.fixture
+    def sdist_unicode_in_script(self, tmpdir):
+        files = [
+            (
+                "setup.py",
+                DALS(
+                    """
+                    import setuptools
+                    setuptools.setup(
+                        name="setuptools-test-unicode",
+                        version="1.0",
+                        packages=["mypkg"],
+                        include_package_data=True,
+                        scripts=['mypkg/unicode_in_script'],
+                    )
+                    """
+                ),
+            ),
+            ("mypkg/__init__.py", ""),
+            (
+                "mypkg/unicode_in_script",
+                DALS(
+                    """
+                    #!/bin/sh
+                    # á
+
+                    non_python_fn() {
+                    }
+                """
+                ),
+            ),
+        ]
+        sdist_name = "setuptools-test-unicode-script-1.0.zip"
+        sdist = tmpdir / sdist_name
+        # can't use make_sdist, because the issue only occurs
+        #  with zip sdists.
+        sdist_zip = zipfile.ZipFile(str(sdist), "w")
+        for filename, content in files:
+            sdist_zip.writestr(filename, content.encode('utf-8'))
+        sdist_zip.close()
+        return str(sdist)
+
+    @pytest.fixture
+    def sdist_script(self, tmpdir):
+        files = [
+            (
+                'setup.py',
+                DALS(
+                    """
+                    import setuptools
+                    setuptools.setup(
+                        name="setuptools-test-script",
+                        version="1.0",
+                        scripts=["mypkg_script"],
+                    )
+                    """
+                ),
+            ),
+            (
+                'mypkg_script',
+                DALS(
+                    """
+                     #/usr/bin/python
+                     print('mypkg_script')
+                     """
+                ),
+            ),
+        ]
+        sdist_name = 'setuptools-test-script-1.0.zip'
+        sdist = str(tmpdir / sdist_name)
+        make_sdist(sdist, files)
+        return sdist
+
+
+@pytest.mark.filterwarnings('ignore:Unbuilt egg')
+class TestPTHFileWriter:
+    def test_add_from_cwd_site_sets_dirty(self):
+        """a pth file manager should set dirty
+        if a distribution is in site but also the cwd
+        """
+        pth = PthDistributions('does-not_exist', [os.getcwd()])
+        assert not pth.dirty
+        pth.add(PRDistribution(os.getcwd()))
+        assert pth.dirty
+
+    def test_add_from_site_is_ignored(self):
+        location = '/test/location/does-not-have-to-exist'
+        # PthDistributions expects all locations to be normalized
+        location = pkg_resources.normalize_path(location)
+        pth = PthDistributions(
+            'does-not_exist',
+            [
+                location,
+            ],
+        )
+        assert not pth.dirty
+        pth.add(PRDistribution(location))
+        assert not pth.dirty
+
+    def test_many_pth_distributions_merge_together(self, tmpdir):
+        """
+        If the pth file is modified under the hood, then PthDistribution
+        will refresh its content before saving, merging contents when
+        necessary.
+        """
+        # putting the pth file in a dedicated sub-folder,
+        pth_subdir = tmpdir.join("pth_subdir")
+        pth_subdir.mkdir()
+        pth_path = str(pth_subdir.join("file1.pth"))
+        pth1 = PthDistributions(pth_path)
+        pth2 = PthDistributions(pth_path)
+        assert pth1.paths == pth2.paths == [], (
+            "unless there would be some default added at some point"
+        )
+        # and so putting the src_subdir in folder distinct than the pth one,
+        # so to keep it absolute by PthDistributions
+        new_src_path = tmpdir.join("src_subdir")
+        new_src_path.mkdir()  # must exist to be accounted
+        new_src_path_str = str(new_src_path)
+        pth1.paths.append(new_src_path_str)
+        pth1.save()
+        assert pth1.paths, (
+            "the new_src_path added must still be present/valid in pth1 after save"
+        )
+        # now,
+        assert new_src_path_str not in pth2.paths, (
+            "right before we save the entry should still not be present"
+        )
+        pth2.save()
+        assert new_src_path_str in pth2.paths, (
+            "the new_src_path entry should have been added by pth2 with its save() call"
+        )
+        assert pth2.paths[-1] == new_src_path, (
+            "and it should match exactly on the last entry actually "
+            "given we append to it in save()"
+        )
+        # finally,
+        assert PthDistributions(pth_path).paths == pth2.paths, (
+            "and we should have the exact same list at the end "
+            "with a fresh PthDistributions instance"
+        )
+
+
+@pytest.fixture
+def setup_context(tmpdir):
+    with (tmpdir / 'setup.py').open('w', encoding="utf-8") as f:
+        f.write(SETUP_PY)
+    with tmpdir.as_cwd():
+        yield tmpdir
+
+
+@pytest.mark.usefixtures("user_override")
+@pytest.mark.usefixtures("setup_context")
+class TestUserInstallTest:
+    # prevent check that site-packages is writable. easy_install
+    # shouldn't be writing to system site-packages during finalize
+    # options, but while it does, bypass the behavior.
+    prev_sp_write = mock.patch(
+        'setuptools.command.easy_install.easy_install.check_site_dir',
+        mock.Mock(),
+    )
+
+    # simulate setuptools installed in user site packages
+    @mock.patch('setuptools.command.easy_install.__file__', site.USER_SITE)
+    @mock.patch('site.ENABLE_USER_SITE', True)
+    @prev_sp_write
+    def test_user_install_not_implied_user_site_enabled(self):
+        self.assert_not_user_site()
+
+    @mock.patch('site.ENABLE_USER_SITE', False)
+    @prev_sp_write
+    def test_user_install_not_implied_user_site_disabled(self):
+        self.assert_not_user_site()
+
+    @staticmethod
+    def assert_not_user_site():
+        # create a finalized easy_install command
+        dist = Distribution()
+        dist.script_name = 'setup.py'
+        cmd = ei.easy_install(dist)
+        cmd.args = ['py']
+        cmd.ensure_finalized()
+        assert not cmd.user, 'user should not be implied'
+
+    def test_multiproc_atexit(self):
+        pytest.importorskip('multiprocessing')
+
+        log = logging.getLogger('test_easy_install')
+        logging.basicConfig(level=logging.INFO, stream=sys.stderr)
+        log.info('this should not break')
+
+    @pytest.fixture
+    def foo_package(self, tmpdir):
+        egg_file = tmpdir / 'foo-1.0.egg-info'
+        with egg_file.open('w') as f:
+            f.write('Name: foo\n')
+        return str(tmpdir)
+
+    @pytest.fixture
+    def install_target(self, tmpdir):
+        target = str(tmpdir)
+        with mock.patch('sys.path', sys.path + [target]):
+            python_path = os.path.pathsep.join(sys.path)
+            with mock.patch.dict(os.environ, PYTHONPATH=python_path):
+                yield target
+
+    def test_local_index(self, foo_package, install_target):
+        """
+        The local index must be used when easy_install locates installed
+        packages.
+        """
+        dist = Distribution()
+        dist.script_name = 'setup.py'
+        cmd = ei.easy_install(dist)
+        cmd.install_dir = install_target
+        cmd.args = ['foo']
+        cmd.ensure_finalized()
+        cmd.local_index.scan([foo_package])
+        res = cmd.easy_install('foo')
+        actual = os.path.normcase(os.path.realpath(res.location))
+        expected = os.path.normcase(os.path.realpath(foo_package))
+        assert actual == expected
+
+
+def make_trivial_sdist(dist_path, distname, version):
+    """
+    Create a simple sdist tarball at dist_path, containing just a simple
+    setup.py.
+    """
+
+    make_sdist(
+        dist_path,
+        [
+            (
+                'setup.py',
+                DALS(
+                    f"""\
+             import setuptools
+             setuptools.setup(
+                 name={distname!r},
+                 version={version!r}
+             )
+         """
+                ),
+            ),
+            ('setup.cfg', ''),
+        ],
+    )
+
+
+def make_nspkg_sdist(dist_path, distname, version):
+    """
+    Make an sdist tarball with distname and version which also contains one
+    package with the same name as distname.  The top-level package is
+    designated a namespace package).
+    """
+    # Assert that the distname contains at least one period
+    assert '.' in distname
+
+    parts = distname.split('.')
+    nspackage = parts[0]
+
+    packages = ['.'.join(parts[:idx]) for idx in range(1, len(parts) + 1)]
+
+    setup_py = DALS(
+        f"""\
+        import setuptools
+        setuptools.setup(
+            name={distname!r},
+            version={version!r},
+            packages={packages!r},
+            namespace_packages=[{nspackage!r}]
+        )
+    """
+    )
+
+    init = "__import__('pkg_resources').declare_namespace(__name__)"
+
+    files = [('setup.py', setup_py), (os.path.join(nspackage, '__init__.py'), init)]
+    for package in packages[1:]:
+        filename = os.path.join(*(package.split('.') + ['__init__.py']))
+        files.append((filename, ''))
+
+    make_sdist(dist_path, files)
+
+
+def make_python_requires_sdist(dist_path, distname, version, python_requires):
+    make_sdist(
+        dist_path,
+        [
+            (
+                'setup.py',
+                DALS(
+                    """\
+                import setuptools
+                setuptools.setup(
+                  name={name!r},
+                  version={version!r},
+                  python_requires={python_requires!r},
+                )
+                """
+                ).format(
+                    name=distname, version=version, python_requires=python_requires
+                ),
+            ),
+            ('setup.cfg', ''),
+        ],
+    )
+
+
+def make_sdist(dist_path, files):
+    """
+    Create a simple sdist tarball at dist_path, containing the files
+    listed in ``files`` as ``(filename, content)`` tuples.
+    """
+
+    # Distributions with only one file don't play well with pip.
+    assert len(files) > 1
+    with tarfile.open(dist_path, 'w:gz') as dist:
+        for filename, content in files:
+            file_bytes = io.BytesIO(content.encode('utf-8'))
+            file_info = tarfile.TarInfo(name=filename)
+            file_info.size = len(file_bytes.getvalue())
+            file_info.mtime = int(time.time())
+            dist.addfile(file_info, fileobj=file_bytes)
+
+
+def create_setup_requires_package(
+    path,
+    distname='foobar',
+    version='0.1',
+    make_package=make_trivial_sdist,
+    setup_py_template=None,
+    setup_attrs=None,
+    use_setup_cfg=(),
+):
+    """Creates a source tree under path for a trivial test package that has a
+    single requirement in setup_requires--a tarball for that requirement is
+    also created and added to the dependency_links argument.
+
+    ``distname`` and ``version`` refer to the name/version of the package that
+    the test package requires via ``setup_requires``.  The name of the test
+    package itself is just 'test_pkg'.
+    """
+
+    normalized_distname = safer_name(distname)
+    test_setup_attrs = {
+        'name': 'test_pkg',
+        'version': '0.0',
+        'setup_requires': [f'{normalized_distname}=={version}'],
+        'dependency_links': [os.path.abspath(path)],
+    }
+    if setup_attrs:
+        test_setup_attrs.update(setup_attrs)
+
+    test_pkg = os.path.join(path, 'test_pkg')
+    os.mkdir(test_pkg)
+
+    # setup.cfg
+    if use_setup_cfg:
+        options = []
+        metadata = []
+        for name in use_setup_cfg:
+            value = test_setup_attrs.pop(name)
+            if name in 'name version'.split():
+                section = metadata
+            else:
+                section = options
+            if isinstance(value, (tuple, list)):
+                value = ';'.join(value)
+            section.append(f'{name}: {value}')
+        test_setup_cfg_contents = DALS(
+            """
+            [metadata]
+            {metadata}
+            [options]
+            {options}
+            """
+        ).format(
+            options='\n'.join(options),
+            metadata='\n'.join(metadata),
+        )
+    else:
+        test_setup_cfg_contents = ''
+    with open(os.path.join(test_pkg, 'setup.cfg'), 'w', encoding="utf-8") as f:
+        f.write(test_setup_cfg_contents)
+
+    # setup.py
+    if setup_py_template is None:
+        setup_py_template = DALS(
+            """\
+            import setuptools
+            setuptools.setup(**%r)
+        """
+        )
+    with open(os.path.join(test_pkg, 'setup.py'), 'w', encoding="utf-8") as f:
+        f.write(setup_py_template % test_setup_attrs)
+
+    foobar_path = os.path.join(path, f'{normalized_distname}-{version}.tar.gz')
+    make_package(foobar_path, distname, version)
+
+    return test_pkg
+
+
+@pytest.mark.skipif(
+    sys.platform.startswith('java') and ei.is_sh(sys.executable),
+    reason="Test cannot run under java when executable is sh",
+)
+class TestScriptHeader:
+    non_ascii_exe = '/Users/José/bin/python'
+    exe_with_spaces = r'C:\Program Files\Python36\python.exe'
+
+    def test_get_script_header(self):
+        expected = f'#!{ei.nt_quote_arg(os.path.normpath(sys.executable))}\n'
+        actual = ei.ScriptWriter.get_header('#!/usr/local/bin/python')
+        assert actual == expected
+
+    def test_get_script_header_args(self):
+        expected = f'#!{ei.nt_quote_arg(os.path.normpath(sys.executable))} -x\n'
+        actual = ei.ScriptWriter.get_header('#!/usr/bin/python -x')
+        assert actual == expected
+
+    def test_get_script_header_non_ascii_exe(self):
+        actual = ei.ScriptWriter.get_header(
+            '#!/usr/bin/python', executable=self.non_ascii_exe
+        )
+        expected = f'#!{self.non_ascii_exe} -x\n'
+        assert actual == expected
+
+    def test_get_script_header_exe_with_spaces(self):
+        actual = ei.ScriptWriter.get_header(
+            '#!/usr/bin/python', executable='"' + self.exe_with_spaces + '"'
+        )
+        expected = f'#!"{self.exe_with_spaces}"\n'
+        assert actual == expected
+
+
+class TestCommandSpec:
+    def test_custom_launch_command(self):
+        """
+        Show how a custom CommandSpec could be used to specify a #! executable
+        which takes parameters.
+        """
+        cmd = ei.CommandSpec(['/usr/bin/env', 'python3'])
+        assert cmd.as_header() == '#!/usr/bin/env python3\n'
+
+    def test_from_param_for_CommandSpec_is_passthrough(self):
+        """
+        from_param should return an instance of a CommandSpec
+        """
+        cmd = ei.CommandSpec(['python'])
+        cmd_new = ei.CommandSpec.from_param(cmd)
+        assert cmd is cmd_new
+
+    @mock.patch('sys.executable', TestScriptHeader.exe_with_spaces)
+    @mock.patch.dict(os.environ)
+    def test_from_environment_with_spaces_in_executable(self):
+        os.environ.pop('__PYVENV_LAUNCHER__', None)
+        cmd = ei.CommandSpec.from_environment()
+        assert len(cmd) == 1
+        assert cmd.as_header().startswith('#!"')
+
+    def test_from_simple_string_uses_shlex(self):
+        """
+        In order to support `executable = /usr/bin/env my-python`, make sure
+        from_param invokes shlex on that input.
+        """
+        cmd = ei.CommandSpec.from_param('/usr/bin/env my-python')
+        assert len(cmd) == 2
+        assert '"' not in cmd.as_header()
+
+    def test_from_param_raises_expected_error(self) -> None:
+        """
+        from_param should raise its own TypeError when the argument's type is unsupported
+        """
+        with pytest.raises(TypeError) as exc_info:
+            ei.CommandSpec.from_param(object())  # type: ignore[arg-type] # We want a type error here
+        assert (
+            str(exc_info.value) == "Argument has an unsupported type "
+        ), exc_info.value
+
+
+class TestWindowsScriptWriter:
+    def test_header(self):
+        hdr = ei.WindowsScriptWriter.get_header('')
+        assert hdr.startswith('#!')
+        assert hdr.endswith('\n')
+        hdr = hdr.lstrip('#!')
+        hdr = hdr.rstrip('\n')
+        # header should not start with an escaped quote
+        assert not hdr.startswith('\\"')
+
+
+class VersionStub(NamedTuple):
+    major: int
+    minor: int
+    micro: int
+    releaselevel: str
+    serial: int
+
+
+def test_use_correct_python_version_string(tmpdir, tmpdir_cwd, monkeypatch):
+    # In issue #3001, easy_install wrongly uses the `python3.1` directory
+    # when the interpreter is `python3.10` and the `--user` option is given.
+    # See pypa/setuptools#3001.
+    dist = Distribution()
+    cmd = dist.get_command_obj('easy_install')
+    cmd.args = ['ok']
+    cmd.optimize = 0
+    cmd.user = True
+    cmd.install_userbase = str(tmpdir)
+    cmd.install_usersite = None
+    install_cmd = dist.get_command_obj('install')
+    install_cmd.install_userbase = str(tmpdir)
+    install_cmd.install_usersite = None
+
+    with monkeypatch.context() as patch, warnings.catch_warnings():
+        warnings.simplefilter("ignore")
+        version = '3.10.1 (main, Dec 21 2021, 09:17:12) [GCC 10.2.1 20210110]'
+        info = VersionStub(3, 10, 1, "final", 0)
+        patch.setattr('site.ENABLE_USER_SITE', True)
+        patch.setattr('sys.version', version)
+        patch.setattr('sys.version_info', info)
+        patch.setattr(cmd, 'create_home_path', mock.Mock())
+        cmd.finalize_options()
+
+    name = "pypy" if hasattr(sys, 'pypy_version_info') else "python"
+    install_dir = cmd.install_dir.lower()
+
+    # In some platforms (e.g. Windows), install_dir is mostly determined
+    # via `sysconfig`, which define constants eagerly at module creation.
+    # This means that monkeypatching `sys.version` to emulate 3.10 for testing
+    # may have no effect.
+    # The safest test here is to rely on the fact that 3.1 is no longer
+    # supported/tested, and make sure that if 'python3.1' ever appears in the string
+    # it is followed by another digit (e.g. 'python3.10').
+    if re.search(name + r'3\.?1', install_dir):
+        assert re.search(name + r'3\.?1\d', install_dir)
+
+    # The following "variables" are used for interpolation in distutils
+    # installation schemes, so it should be fair to treat them as "semi-public",
+    # or at least public enough so we can have a test to make sure they are correct
+    assert cmd.config_vars['py_version'] == '3.10.1'
+    assert cmd.config_vars['py_version_short'] == '3.10'
+    assert cmd.config_vars['py_version_nodot'] == '310'
diff --git a/setuptools/tests/test_editable_install.py b/setuptools/tests/test_editable_install.py
new file mode 100644
index 0000000000..038dcadf93
--- /dev/null
+++ b/setuptools/tests/test_editable_install.py
@@ -0,0 +1,1289 @@
+from __future__ import annotations
+
+import os
+import platform
+import stat
+import subprocess
+import sys
+from copy import deepcopy
+from importlib import import_module
+from importlib.machinery import EXTENSION_SUFFIXES
+from pathlib import Path
+from textwrap import dedent
+from typing import Any
+from unittest.mock import Mock
+from uuid import uuid4
+
+import jaraco.envs
+import jaraco.path
+import pytest
+from path import Path as _Path
+
+from setuptools._importlib import resources as importlib_resources
+from setuptools.command.editable_wheel import (
+    _DebuggingTips,
+    _encode_pth,
+    _find_namespaces,
+    _find_package_roots,
+    _find_virtual_namespaces,
+    _finder_template,
+    _LinkTree,
+    _TopLevelFinder,
+    editable_wheel,
+)
+from setuptools.dist import Distribution
+from setuptools.extension import Extension
+from setuptools.warnings import SetuptoolsDeprecationWarning
+
+from . import contexts, namespaces
+
+from distutils.core import run_setup
+
+
+@pytest.fixture(params=["strict", "lenient"])
+def editable_opts(request):
+    if request.param == "strict":
+        return ["--config-settings", "editable-mode=strict"]
+    return []
+
+
+EXAMPLE = {
+    'pyproject.toml': dedent(
+        """\
+        [build-system]
+        requires = ["setuptools"]
+        build-backend = "setuptools.build_meta"
+
+        [project]
+        name = "mypkg"
+        version = "3.14159"
+        license = {text = "MIT"}
+        description = "This is a Python package"
+        dynamic = ["readme"]
+        classifiers = [
+            "Development Status :: 5 - Production/Stable",
+            "Intended Audience :: Developers"
+        ]
+        urls = {Homepage = "https://github.com"}
+
+        [tool.setuptools]
+        package-dir = {"" = "src"}
+        packages = {find = {where = ["src"]}}
+        license-files = ["LICENSE*"]
+
+        [tool.setuptools.dynamic]
+        readme = {file = "README.rst"}
+
+        [tool.distutils.egg_info]
+        tag-build = ".post0"
+        """
+    ),
+    "MANIFEST.in": dedent(
+        """\
+        global-include *.py *.txt
+        global-exclude *.py[cod]
+        prune dist
+        prune build
+        """
+    ).strip(),
+    "README.rst": "This is a ``README``",
+    "LICENSE.txt": "---- placeholder MIT license ----",
+    "src": {
+        "mypkg": {
+            "__init__.py": dedent(
+                """\
+                import sys
+                from importlib.metadata import PackageNotFoundError, version
+
+                try:
+                    __version__ = version(__name__)
+                except PackageNotFoundError:
+                    __version__ = "unknown"
+                """
+            ),
+            "__main__.py": dedent(
+                """\
+                from importlib.resources import read_text
+                from . import __version__, __name__ as parent
+                from .mod import x
+
+                data = read_text(parent, "data.txt")
+                print(__version__, data, x)
+                """
+            ),
+            "mod.py": "x = ''",
+            "data.txt": "Hello World",
+        }
+    },
+}
+
+
+SETUP_SCRIPT_STUB = "__import__('setuptools').setup()"
+
+
+@pytest.mark.xfail(sys.platform == "darwin", reason="pypa/setuptools#4328")
+@pytest.mark.parametrize(
+    "files",
+    [
+        {**EXAMPLE, "setup.py": SETUP_SCRIPT_STUB},
+        EXAMPLE,  # No setup.py script
+    ],
+)
+def test_editable_with_pyproject(tmp_path, venv, files, editable_opts):
+    project = tmp_path / "mypkg"
+    project.mkdir()
+    jaraco.path.build(files, prefix=project)
+
+    cmd = [
+        "python",
+        "-m",
+        "pip",
+        "install",
+        "--no-build-isolation",  # required to force current version of setuptools
+        "-e",
+        str(project),
+        *editable_opts,
+    ]
+    print(venv.run(cmd))
+
+    cmd = ["python", "-m", "mypkg"]
+    assert venv.run(cmd).strip() == "3.14159.post0 Hello World"
+
+    (project / "src/mypkg/data.txt").write_text("foobar", encoding="utf-8")
+    (project / "src/mypkg/mod.py").write_text("x = 42", encoding="utf-8")
+    assert venv.run(cmd).strip() == "3.14159.post0 foobar 42"
+
+
+def test_editable_with_flat_layout(tmp_path, venv, editable_opts):
+    files = {
+        "mypkg": {
+            "pyproject.toml": dedent(
+                """\
+                [build-system]
+                requires = ["setuptools", "wheel"]
+                build-backend = "setuptools.build_meta"
+
+                [project]
+                name = "mypkg"
+                version = "3.14159"
+
+                [tool.setuptools]
+                packages = ["pkg"]
+                py-modules = ["mod"]
+                """
+            ),
+            "pkg": {"__init__.py": "a = 4"},
+            "mod.py": "b = 2",
+        },
+    }
+    jaraco.path.build(files, prefix=tmp_path)
+    project = tmp_path / "mypkg"
+
+    cmd = [
+        "python",
+        "-m",
+        "pip",
+        "install",
+        "--no-build-isolation",  # required to force current version of setuptools
+        "-e",
+        str(project),
+        *editable_opts,
+    ]
+    print(venv.run(cmd))
+    cmd = ["python", "-c", "import pkg, mod; print(pkg.a, mod.b)"]
+    assert venv.run(cmd).strip() == "4 2"
+
+
+def test_editable_with_single_module(tmp_path, venv, editable_opts):
+    files = {
+        "mypkg": {
+            "pyproject.toml": dedent(
+                """\
+                [build-system]
+                requires = ["setuptools", "wheel"]
+                build-backend = "setuptools.build_meta"
+
+                [project]
+                name = "mod"
+                version = "3.14159"
+
+                [tool.setuptools]
+                py-modules = ["mod"]
+                """
+            ),
+            "mod.py": "b = 2",
+        },
+    }
+    jaraco.path.build(files, prefix=tmp_path)
+    project = tmp_path / "mypkg"
+
+    cmd = [
+        "python",
+        "-m",
+        "pip",
+        "install",
+        "--no-build-isolation",  # required to force current version of setuptools
+        "-e",
+        str(project),
+        *editable_opts,
+    ]
+    print(venv.run(cmd))
+    cmd = ["python", "-c", "import mod; print(mod.b)"]
+    assert venv.run(cmd).strip() == "2"
+
+
+class TestLegacyNamespaces:
+    # legacy => pkg_resources.declare_namespace(...) + setup(namespace_packages=...)
+
+    def test_nspkg_file_is_unique(self, tmp_path, monkeypatch):
+        deprecation = pytest.warns(
+            SetuptoolsDeprecationWarning, match=".*namespace_packages parameter.*"
+        )
+        installation_dir = tmp_path / ".installation_dir"
+        installation_dir.mkdir()
+        examples = (
+            "myns.pkgA",
+            "myns.pkgB",
+            "myns.n.pkgA",
+            "myns.n.pkgB",
+        )
+
+        for name in examples:
+            pkg = namespaces.build_namespace_package(tmp_path, name, version="42")
+            with deprecation, monkeypatch.context() as ctx:
+                ctx.chdir(pkg)
+                dist = run_setup("setup.py", stop_after="config")
+                cmd = editable_wheel(dist)
+                cmd.finalize_options()
+                editable_name = cmd.get_finalized_command("dist_info").name
+                cmd._install_namespaces(installation_dir, editable_name)
+
+        files = list(installation_dir.glob("*-nspkg.pth"))
+        assert len(files) == len(examples)
+
+    @pytest.mark.parametrize(
+        "impl",
+        (
+            "pkg_resources",
+            #  "pkgutil",  => does not work
+        ),
+    )
+    @pytest.mark.parametrize("ns", ("myns.n",))
+    def test_namespace_package_importable(
+        self, venv, tmp_path, ns, impl, editable_opts
+    ):
+        """
+        Installing two packages sharing the same namespace, one installed
+        naturally using pip or `--single-version-externally-managed`
+        and the other installed in editable mode should leave the namespace
+        intact and both packages reachable by import.
+        (Ported from test_develop).
+        """
+        build_system = """\
+        [build-system]
+        requires = ["setuptools"]
+        build-backend = "setuptools.build_meta"
+        """
+        pkg_A = namespaces.build_namespace_package(tmp_path, f"{ns}.pkgA", impl=impl)
+        pkg_B = namespaces.build_namespace_package(tmp_path, f"{ns}.pkgB", impl=impl)
+        (pkg_A / "pyproject.toml").write_text(build_system, encoding="utf-8")
+        (pkg_B / "pyproject.toml").write_text(build_system, encoding="utf-8")
+        # use pip to install to the target directory
+        opts = editable_opts[:]
+        opts.append("--no-build-isolation")  # force current version of setuptools
+        venv.run(["python", "-m", "pip", "install", str(pkg_A), *opts])
+        venv.run(["python", "-m", "pip", "install", "-e", str(pkg_B), *opts])
+        venv.run(["python", "-c", f"import {ns}.pkgA; import {ns}.pkgB"])
+        # additionally ensure that pkg_resources import works
+        venv.run(["python", "-c", "import pkg_resources"])
+
+
+class TestPep420Namespaces:
+    def test_namespace_package_importable(self, venv, tmp_path, editable_opts):
+        """
+        Installing two packages sharing the same namespace, one installed
+        normally using pip and the other installed in editable mode
+        should allow importing both packages.
+        """
+        pkg_A = namespaces.build_pep420_namespace_package(tmp_path, 'myns.n.pkgA')
+        pkg_B = namespaces.build_pep420_namespace_package(tmp_path, 'myns.n.pkgB')
+        # use pip to install to the target directory
+        opts = editable_opts[:]
+        opts.append("--no-build-isolation")  # force current version of setuptools
+        venv.run(["python", "-m", "pip", "install", str(pkg_A), *opts])
+        venv.run(["python", "-m", "pip", "install", "-e", str(pkg_B), *opts])
+        venv.run(["python", "-c", "import myns.n.pkgA; import myns.n.pkgB"])
+
+    def test_namespace_created_via_package_dir(self, venv, tmp_path, editable_opts):
+        """Currently users can create a namespace by tweaking `package_dir`"""
+        files = {
+            "pkgA": {
+                "pyproject.toml": dedent(
+                    """\
+                    [build-system]
+                    requires = ["setuptools", "wheel"]
+                    build-backend = "setuptools.build_meta"
+
+                    [project]
+                    name = "pkgA"
+                    version = "3.14159"
+
+                    [tool.setuptools]
+                    package-dir = {"myns.n.pkgA" = "src"}
+                    """
+                ),
+                "src": {"__init__.py": "a = 1"},
+            },
+        }
+        jaraco.path.build(files, prefix=tmp_path)
+        pkg_A = tmp_path / "pkgA"
+        pkg_B = namespaces.build_pep420_namespace_package(tmp_path, 'myns.n.pkgB')
+        pkg_C = namespaces.build_pep420_namespace_package(tmp_path, 'myns.n.pkgC')
+
+        # use pip to install to the target directory
+        opts = editable_opts[:]
+        opts.append("--no-build-isolation")  # force current version of setuptools
+        venv.run(["python", "-m", "pip", "install", str(pkg_A), *opts])
+        venv.run(["python", "-m", "pip", "install", "-e", str(pkg_B), *opts])
+        venv.run(["python", "-m", "pip", "install", "-e", str(pkg_C), *opts])
+        venv.run(["python", "-c", "from myns.n import pkgA, pkgB, pkgC"])
+
+    def test_namespace_accidental_config_in_lenient_mode(self, venv, tmp_path):
+        """Sometimes users might specify an ``include`` pattern that ignores parent
+        packages. In a normal installation this would ignore all modules inside the
+        parent packages, and make them namespaces (reported in issue #3504),
+        so the editable mode should preserve this behaviour.
+        """
+        files = {
+            "pkgA": {
+                "pyproject.toml": dedent(
+                    """\
+                    [build-system]
+                    requires = ["setuptools", "wheel"]
+                    build-backend = "setuptools.build_meta"
+
+                    [project]
+                    name = "pkgA"
+                    version = "3.14159"
+
+                    [tool.setuptools]
+                    packages.find.include = ["mypkg.*"]
+                    """
+                ),
+                "mypkg": {
+                    "__init__.py": "",
+                    "other.py": "b = 1",
+                    "n": {
+                        "__init__.py": "",
+                        "pkgA.py": "a = 1",
+                    },
+                },
+                "MANIFEST.in": EXAMPLE["MANIFEST.in"],
+            },
+        }
+        jaraco.path.build(files, prefix=tmp_path)
+        pkg_A = tmp_path / "pkgA"
+
+        # use pip to install to the target directory
+        opts = ["--no-build-isolation"]  # force current version of setuptools
+        venv.run(["python", "-m", "pip", "-v", "install", "-e", str(pkg_A), *opts])
+        out = venv.run(["python", "-c", "from mypkg.n import pkgA; print(pkgA.a)"])
+        assert out.strip() == "1"
+        cmd = """\
+        try:
+            import mypkg.other
+        except ImportError:
+            print("mypkg.other not defined")
+        """
+        out = venv.run(["python", "-c", dedent(cmd)])
+        assert "mypkg.other not defined" in out
+
+
+def test_editable_with_prefix(tmp_path, sample_project, editable_opts):
+    """
+    Editable install to a prefix should be discoverable.
+    """
+    prefix = tmp_path / 'prefix'
+
+    # figure out where pip will likely install the package
+    site_packages_all = [
+        prefix / Path(path).relative_to(sys.prefix)
+        for path in sys.path
+        if 'site-packages' in path and path.startswith(sys.prefix)
+    ]
+
+    for sp in site_packages_all:
+        sp.mkdir(parents=True)
+
+    # install workaround
+    _addsitedirs(site_packages_all)
+
+    env = dict(os.environ, PYTHONPATH=os.pathsep.join(map(str, site_packages_all)))
+    cmd = [
+        sys.executable,
+        '-m',
+        'pip',
+        'install',
+        '--editable',
+        str(sample_project),
+        '--prefix',
+        str(prefix),
+        '--no-build-isolation',
+        *editable_opts,
+    ]
+    subprocess.check_call(cmd, env=env)
+
+    # now run 'sample' with the prefix on the PYTHONPATH
+    bin = 'Scripts' if platform.system() == 'Windows' else 'bin'
+    exe = prefix / bin / 'sample'
+    subprocess.check_call([exe], env=env)
+
+
+class TestFinderTemplate:
+    """This test focus in getting a particular implementation detail right.
+    If at some point in time the implementation is changed for something different,
+    this test can be modified or even excluded.
+    """
+
+    def install_finder(self, finder):
+        loc = {}
+        exec(finder, loc, loc)
+        loc["install"]()
+
+    def test_packages(self, tmp_path):
+        files = {
+            "src1": {
+                "pkg1": {
+                    "__init__.py": "",
+                    "subpkg": {"mod1.py": "a = 42"},
+                },
+            },
+            "src2": {"mod2.py": "a = 43"},
+        }
+        jaraco.path.build(files, prefix=tmp_path)
+
+        mapping = {
+            "pkg1": str(tmp_path / "src1/pkg1"),
+            "mod2": str(tmp_path / "src2/mod2"),
+        }
+        template = _finder_template(str(uuid4()), mapping, {})
+
+        with contexts.save_paths(), contexts.save_sys_modules():
+            for mod in ("pkg1", "pkg1.subpkg", "pkg1.subpkg.mod1", "mod2"):
+                sys.modules.pop(mod, None)
+
+            self.install_finder(template)
+            mod1 = import_module("pkg1.subpkg.mod1")
+            mod2 = import_module("mod2")
+            subpkg = import_module("pkg1.subpkg")
+
+            assert mod1.a == 42
+            assert mod2.a == 43
+            expected = str((tmp_path / "src1/pkg1/subpkg").resolve())
+            assert_path(subpkg, expected)
+
+    def test_namespace(self, tmp_path):
+        files = {"pkg": {"__init__.py": "a = 13", "text.txt": "abc"}}
+        jaraco.path.build(files, prefix=tmp_path)
+
+        mapping = {"ns.othername": str(tmp_path / "pkg")}
+        namespaces = {"ns": []}
+
+        template = _finder_template(str(uuid4()), mapping, namespaces)
+        with contexts.save_paths(), contexts.save_sys_modules():
+            for mod in ("ns", "ns.othername"):
+                sys.modules.pop(mod, None)
+
+            self.install_finder(template)
+            pkg = import_module("ns.othername")
+            text = importlib_resources.files(pkg) / "text.txt"
+
+            expected = str((tmp_path / "pkg").resolve())
+            assert_path(pkg, expected)
+            assert pkg.a == 13
+
+            # Make sure resources can also be found
+            assert text.read_text(encoding="utf-8") == "abc"
+
+    def test_combine_namespaces(self, tmp_path):
+        files = {
+            "src1": {"ns": {"pkg1": {"__init__.py": "a = 13"}}},
+            "src2": {"ns": {"mod2.py": "b = 37"}},
+        }
+        jaraco.path.build(files, prefix=tmp_path)
+
+        mapping = {
+            "ns.pkgA": str(tmp_path / "src1/ns/pkg1"),
+            "ns": str(tmp_path / "src2/ns"),
+        }
+        namespaces_ = {"ns": [str(tmp_path / "src1"), str(tmp_path / "src2")]}
+        template = _finder_template(str(uuid4()), mapping, namespaces_)
+
+        with contexts.save_paths(), contexts.save_sys_modules():
+            for mod in ("ns", "ns.pkgA", "ns.mod2"):
+                sys.modules.pop(mod, None)
+
+            self.install_finder(template)
+            pkgA = import_module("ns.pkgA")
+            mod2 = import_module("ns.mod2")
+
+            expected = str((tmp_path / "src1/ns/pkg1").resolve())
+            assert_path(pkgA, expected)
+            assert pkgA.a == 13
+            assert mod2.b == 37
+
+    def test_combine_namespaces_nested(self, tmp_path):
+        """
+        Users may attempt to combine namespace packages in a nested way via
+        ``package_dir`` as shown in pypa/setuptools#4248.
+        """
+
+        files = {
+            "src": {"my_package": {"my_module.py": "a = 13"}},
+            "src2": {"my_package2": {"my_module2.py": "b = 37"}},
+        }
+
+        stack = jaraco.path.DirectoryStack()
+        with stack.context(tmp_path):
+            jaraco.path.build(files)
+            attrs = {
+                "script_name": "%PEP 517%",
+                "package_dir": {
+                    "different_name": "src/my_package",
+                    "different_name.subpkg": "src2/my_package2",
+                },
+                "packages": ["different_name", "different_name.subpkg"],
+            }
+            dist = Distribution(attrs)
+            finder = _TopLevelFinder(dist, str(uuid4()))
+            code = next(v for k, v in finder.get_implementation() if k.endswith(".py"))
+
+        with contexts.save_paths(), contexts.save_sys_modules():
+            for mod in attrs["packages"]:
+                sys.modules.pop(mod, None)
+
+            self.install_finder(code)
+            mod1 = import_module("different_name.my_module")
+            mod2 = import_module("different_name.subpkg.my_module2")
+
+            expected = str((tmp_path / "src/my_package/my_module.py").resolve())
+            assert str(Path(mod1.__file__).resolve()) == expected
+
+            expected = str((tmp_path / "src2/my_package2/my_module2.py").resolve())
+            assert str(Path(mod2.__file__).resolve()) == expected
+
+            assert mod1.a == 13
+            assert mod2.b == 37
+
+    def test_dynamic_path_computation(self, tmp_path):
+        # Follows the example in PEP 420
+        files = {
+            "project1": {"parent": {"child": {"one.py": "x = 1"}}},
+            "project2": {"parent": {"child": {"two.py": "x = 2"}}},
+            "project3": {"parent": {"child": {"three.py": "x = 3"}}},
+        }
+        jaraco.path.build(files, prefix=tmp_path)
+        mapping = {}
+        namespaces_ = {"parent": [str(tmp_path / "project1/parent")]}
+        template = _finder_template(str(uuid4()), mapping, namespaces_)
+
+        mods = (f"parent.child.{name}" for name in ("one", "two", "three"))
+        with contexts.save_paths(), contexts.save_sys_modules():
+            for mod in ("parent", "parent.child", "parent.child", *mods):
+                sys.modules.pop(mod, None)
+
+            self.install_finder(template)
+
+            one = import_module("parent.child.one")
+            assert one.x == 1
+
+            with pytest.raises(ImportError):
+                import_module("parent.child.two")
+
+            sys.path.append(str(tmp_path / "project2"))
+            two = import_module("parent.child.two")
+            assert two.x == 2
+
+            with pytest.raises(ImportError):
+                import_module("parent.child.three")
+
+            sys.path.append(str(tmp_path / "project3"))
+            three = import_module("parent.child.three")
+            assert three.x == 3
+
+    def test_no_recursion(self, tmp_path):
+        # See issue #3550
+        files = {
+            "pkg": {
+                "__init__.py": "from . import pkg",
+            },
+        }
+        jaraco.path.build(files, prefix=tmp_path)
+
+        mapping = {
+            "pkg": str(tmp_path / "pkg"),
+        }
+        template = _finder_template(str(uuid4()), mapping, {})
+
+        with contexts.save_paths(), contexts.save_sys_modules():
+            sys.modules.pop("pkg", None)
+
+            self.install_finder(template)
+            with pytest.raises(ImportError, match="pkg"):
+                import_module("pkg")
+
+    def test_similar_name(self, tmp_path):
+        files = {
+            "foo": {
+                "__init__.py": "",
+                "bar": {
+                    "__init__.py": "",
+                },
+            },
+        }
+        jaraco.path.build(files, prefix=tmp_path)
+
+        mapping = {
+            "foo": str(tmp_path / "foo"),
+        }
+        template = _finder_template(str(uuid4()), mapping, {})
+
+        with contexts.save_paths(), contexts.save_sys_modules():
+            sys.modules.pop("foo", None)
+            sys.modules.pop("foo.bar", None)
+
+            self.install_finder(template)
+            with pytest.raises(ImportError, match="foobar"):
+                import_module("foobar")
+
+    def test_case_sensitivity(self, tmp_path):
+        files = {
+            "foo": {
+                "__init__.py": "",
+                "lowercase.py": "x = 1",
+                "bar": {
+                    "__init__.py": "",
+                    "lowercase.py": "x = 2",
+                },
+            },
+        }
+        jaraco.path.build(files, prefix=tmp_path)
+        mapping = {
+            "foo": str(tmp_path / "foo"),
+        }
+        template = _finder_template(str(uuid4()), mapping, {})
+        with contexts.save_paths(), contexts.save_sys_modules():
+            sys.modules.pop("foo", None)
+
+            self.install_finder(template)
+            with pytest.raises(ImportError, match="'FOO'"):
+                import_module("FOO")
+
+            with pytest.raises(ImportError, match="'foo\\.LOWERCASE'"):
+                import_module("foo.LOWERCASE")
+
+            with pytest.raises(ImportError, match="'foo\\.bar\\.Lowercase'"):
+                import_module("foo.bar.Lowercase")
+
+            with pytest.raises(ImportError, match="'foo\\.BAR'"):
+                import_module("foo.BAR.lowercase")
+
+            with pytest.raises(ImportError, match="'FOO'"):
+                import_module("FOO.bar.lowercase")
+
+            mod = import_module("foo.lowercase")
+            assert mod.x == 1
+
+            mod = import_module("foo.bar.lowercase")
+            assert mod.x == 2
+
+    def test_namespace_case_sensitivity(self, tmp_path):
+        files = {
+            "pkg": {
+                "__init__.py": "a = 13",
+                "foo": {
+                    "__init__.py": "b = 37",
+                    "bar.py": "c = 42",
+                },
+            },
+        }
+        jaraco.path.build(files, prefix=tmp_path)
+
+        mapping = {"ns.othername": str(tmp_path / "pkg")}
+        namespaces = {"ns": []}
+
+        template = _finder_template(str(uuid4()), mapping, namespaces)
+        with contexts.save_paths(), contexts.save_sys_modules():
+            for mod in ("ns", "ns.othername"):
+                sys.modules.pop(mod, None)
+
+            self.install_finder(template)
+            pkg = import_module("ns.othername")
+            expected = str((tmp_path / "pkg").resolve())
+            assert_path(pkg, expected)
+            assert pkg.a == 13
+
+            foo = import_module("ns.othername.foo")
+            assert foo.b == 37
+
+            bar = import_module("ns.othername.foo.bar")
+            assert bar.c == 42
+
+            with pytest.raises(ImportError, match="'NS'"):
+                import_module("NS.othername.foo")
+
+            with pytest.raises(ImportError, match="'ns\\.othername\\.FOO\\'"):
+                import_module("ns.othername.FOO")
+
+            with pytest.raises(ImportError, match="'ns\\.othername\\.foo\\.BAR\\'"):
+                import_module("ns.othername.foo.BAR")
+
+    def test_intermediate_packages(self, tmp_path):
+        """
+        The finder should not import ``fullname`` if the intermediate segments
+        don't exist (see pypa/setuptools#4019).
+        """
+        files = {
+            "src": {
+                "mypkg": {
+                    "__init__.py": "",
+                    "config.py": "a = 13",
+                    "helloworld.py": "b = 13",
+                    "components": {
+                        "config.py": "a = 37",
+                    },
+                },
+            }
+        }
+        jaraco.path.build(files, prefix=tmp_path)
+
+        mapping = {"mypkg": str(tmp_path / "src/mypkg")}
+        template = _finder_template(str(uuid4()), mapping, {})
+
+        with contexts.save_paths(), contexts.save_sys_modules():
+            for mod in (
+                "mypkg",
+                "mypkg.config",
+                "mypkg.helloworld",
+                "mypkg.components",
+                "mypkg.components.config",
+                "mypkg.components.helloworld",
+            ):
+                sys.modules.pop(mod, None)
+
+            self.install_finder(template)
+
+            config = import_module("mypkg.components.config")
+            assert config.a == 37
+
+            helloworld = import_module("mypkg.helloworld")
+            assert helloworld.b == 13
+
+            with pytest.raises(ImportError):
+                import_module("mypkg.components.helloworld")
+
+
+def test_pkg_roots(tmp_path):
+    """This test focus in getting a particular implementation detail right.
+    If at some point in time the implementation is changed for something different,
+    this test can be modified or even excluded.
+    """
+    files = {
+        "a": {"b": {"__init__.py": "ab = 1"}, "__init__.py": "a = 1"},
+        "d": {"__init__.py": "d = 1", "e": {"__init__.py": "de = 1"}},
+        "f": {"g": {"h": {"__init__.py": "fgh = 1"}}},
+        "other": {"__init__.py": "abc = 1"},
+        "another": {"__init__.py": "abcxyz = 1"},
+        "yet_another": {"__init__.py": "mnopq = 1"},
+    }
+    jaraco.path.build(files, prefix=tmp_path)
+    package_dir = {
+        "a.b.c": "other",
+        "a.b.c.x.y.z": "another",
+        "m.n.o.p.q": "yet_another",
+    }
+    packages = [
+        "a",
+        "a.b",
+        "a.b.c",
+        "a.b.c.x.y",
+        "a.b.c.x.y.z",
+        "d",
+        "d.e",
+        "f",
+        "f.g",
+        "f.g.h",
+        "m.n.o.p.q",
+    ]
+    roots = _find_package_roots(packages, package_dir, tmp_path)
+    assert roots == {
+        "a": str(tmp_path / "a"),
+        "a.b.c": str(tmp_path / "other"),
+        "a.b.c.x.y.z": str(tmp_path / "another"),
+        "d": str(tmp_path / "d"),
+        "f": str(tmp_path / "f"),
+        "m.n.o.p.q": str(tmp_path / "yet_another"),
+    }
+
+    ns = set(dict(_find_namespaces(packages, roots)))
+    assert ns == {"f", "f.g"}
+
+    ns = set(_find_virtual_namespaces(roots))
+    assert ns == {"a.b", "a.b.c.x", "a.b.c.x.y", "m", "m.n", "m.n.o", "m.n.o.p"}
+
+
+class TestOverallBehaviour:
+    PYPROJECT = """\
+        [build-system]
+        requires = ["setuptools"]
+        build-backend = "setuptools.build_meta"
+
+        [project]
+        name = "mypkg"
+        version = "3.14159"
+        """
+
+    # Any: Would need a TypedDict. Keep it simple for tests
+    FLAT_LAYOUT: dict[str, Any] = {
+        "pyproject.toml": dedent(PYPROJECT),
+        "MANIFEST.in": EXAMPLE["MANIFEST.in"],
+        "otherfile.py": "",
+        "mypkg": {
+            "__init__.py": "",
+            "mod1.py": "var = 42",
+            "subpackage": {
+                "__init__.py": "",
+                "mod2.py": "var = 13",
+                "resource_file.txt": "resource 39",
+            },
+        },
+    }
+
+    EXAMPLES = {
+        "flat-layout": FLAT_LAYOUT,
+        "src-layout": {
+            "pyproject.toml": dedent(PYPROJECT),
+            "MANIFEST.in": EXAMPLE["MANIFEST.in"],
+            "otherfile.py": "",
+            "src": {"mypkg": FLAT_LAYOUT["mypkg"]},
+        },
+        "custom-layout": {
+            "pyproject.toml": dedent(PYPROJECT)
+            + dedent(
+                """\
+                [tool.setuptools]
+                packages = ["mypkg", "mypkg.subpackage"]
+
+                [tool.setuptools.package-dir]
+                "mypkg.subpackage" = "other"
+                """
+            ),
+            "MANIFEST.in": EXAMPLE["MANIFEST.in"],
+            "otherfile.py": "",
+            "mypkg": {
+                "__init__.py": "",
+                "mod1.py": FLAT_LAYOUT["mypkg"]["mod1.py"],
+            },
+            "other": FLAT_LAYOUT["mypkg"]["subpackage"],
+        },
+        "namespace": {
+            "pyproject.toml": dedent(PYPROJECT),
+            "MANIFEST.in": EXAMPLE["MANIFEST.in"],
+            "otherfile.py": "",
+            "src": {
+                "mypkg": {
+                    "mod1.py": FLAT_LAYOUT["mypkg"]["mod1.py"],
+                    "subpackage": FLAT_LAYOUT["mypkg"]["subpackage"],
+                },
+            },
+        },
+    }
+
+    @pytest.mark.xfail(sys.platform == "darwin", reason="pypa/setuptools#4328")
+    @pytest.mark.parametrize("layout", EXAMPLES.keys())
+    def test_editable_install(self, tmp_path, venv, layout, editable_opts):
+        project, _ = install_project(
+            "mypkg", venv, tmp_path, self.EXAMPLES[layout], *editable_opts
+        )
+
+        # Ensure stray files are not importable
+        cmd_import_error = """\
+        try:
+            import otherfile
+        except ImportError as ex:
+            print(ex)
+        """
+        out = venv.run(["python", "-c", dedent(cmd_import_error)])
+        assert "No module named 'otherfile'" in out
+
+        # Ensure the modules are importable
+        cmd_get_vars = """\
+        import mypkg, mypkg.mod1, mypkg.subpackage.mod2
+        print(mypkg.mod1.var, mypkg.subpackage.mod2.var)
+        """
+        out = venv.run(["python", "-c", dedent(cmd_get_vars)])
+        assert "42 13" in out
+
+        # Ensure resources are reachable
+        cmd_get_resource = """\
+        import mypkg.subpackage
+        from setuptools._importlib import resources as importlib_resources
+        text = importlib_resources.files(mypkg.subpackage) / "resource_file.txt"
+        print(text.read_text(encoding="utf-8"))
+        """
+        out = venv.run(["python", "-c", dedent(cmd_get_resource)])
+        assert "resource 39" in out
+
+        # Ensure files are editable
+        mod1 = next(project.glob("**/mod1.py"))
+        mod2 = next(project.glob("**/mod2.py"))
+        resource_file = next(project.glob("**/resource_file.txt"))
+
+        mod1.write_text("var = 17", encoding="utf-8")
+        mod2.write_text("var = 781", encoding="utf-8")
+        resource_file.write_text("resource 374", encoding="utf-8")
+
+        out = venv.run(["python", "-c", dedent(cmd_get_vars)])
+        assert "42 13" not in out
+        assert "17 781" in out
+
+        out = venv.run(["python", "-c", dedent(cmd_get_resource)])
+        assert "resource 39" not in out
+        assert "resource 374" in out
+
+
+class TestLinkTree:
+    FILES = deepcopy(TestOverallBehaviour.EXAMPLES["src-layout"])
+    FILES["pyproject.toml"] += dedent(
+        """\
+        [tool.setuptools]
+        # Temporary workaround: both `include-package-data` and `package-data` configs
+        # can be removed after #3260 is fixed.
+        include-package-data = false
+        package-data = {"*" = ["*.txt"]}
+
+        [tool.setuptools.packages.find]
+        where = ["src"]
+        exclude = ["*.subpackage*"]
+        """
+    )
+    FILES["src"]["mypkg"]["resource.not_in_manifest"] = "abc"
+
+    def test_generated_tree(self, tmp_path):
+        jaraco.path.build(self.FILES, prefix=tmp_path)
+
+        with _Path(tmp_path):
+            name = "mypkg-3.14159"
+            dist = Distribution({"script_name": "%PEP 517%"})
+            dist.parse_config_files()
+
+            wheel = Mock()
+            aux = tmp_path / ".aux"
+            build = tmp_path / ".build"
+            aux.mkdir()
+            build.mkdir()
+
+            build_py = dist.get_command_obj("build_py")
+            build_py.editable_mode = True
+            build_py.build_lib = str(build)
+            build_py.ensure_finalized()
+            outputs = build_py.get_outputs()
+            output_mapping = build_py.get_output_mapping()
+
+            make_tree = _LinkTree(dist, name, aux, build)
+            make_tree(wheel, outputs, output_mapping)
+
+            mod1 = next(aux.glob("**/mod1.py"))
+            expected = tmp_path / "src/mypkg/mod1.py"
+            assert_link_to(mod1, expected)
+
+            assert next(aux.glob("**/subpackage"), None) is None
+            assert next(aux.glob("**/mod2.py"), None) is None
+            assert next(aux.glob("**/resource_file.txt"), None) is None
+
+            assert next(aux.glob("**/resource.not_in_manifest"), None) is None
+
+    def test_strict_install(self, tmp_path, venv):
+        opts = ["--config-settings", "editable-mode=strict"]
+        install_project("mypkg", venv, tmp_path, self.FILES, *opts)
+
+        out = venv.run(["python", "-c", "import mypkg.mod1; print(mypkg.mod1.var)"])
+        assert "42" in out
+
+        # Ensure packages excluded from distribution are not importable
+        cmd_import_error = """\
+        try:
+            from mypkg import subpackage
+        except ImportError as ex:
+            print(ex)
+        """
+        out = venv.run(["python", "-c", dedent(cmd_import_error)])
+        assert "cannot import name 'subpackage'" in out
+
+        # Ensure resource files excluded from distribution are not reachable
+        cmd_get_resource = """\
+        import mypkg
+        from setuptools._importlib import resources as importlib_resources
+        try:
+            text = importlib_resources.files(mypkg) / "resource.not_in_manifest"
+            print(text.read_text(encoding="utf-8"))
+        except FileNotFoundError as ex:
+            print(ex)
+        """
+        out = venv.run(["python", "-c", dedent(cmd_get_resource)])
+        assert "No such file or directory" in out
+        assert "resource.not_in_manifest" in out
+
+
+@pytest.mark.filterwarnings("ignore:.*compat.*:setuptools.SetuptoolsDeprecationWarning")
+def test_compat_install(tmp_path, venv):
+    # TODO: Remove `compat` after Dec/2022.
+    opts = ["--config-settings", "editable-mode=compat"]
+    files = TestOverallBehaviour.EXAMPLES["custom-layout"]
+    install_project("mypkg", venv, tmp_path, files, *opts)
+
+    out = venv.run(["python", "-c", "import mypkg.mod1; print(mypkg.mod1.var)"])
+    assert "42" in out
+
+    expected_path = comparable_path(str(tmp_path))
+
+    # Compatible behaviour will make spurious modules and excluded
+    # files importable directly from the original path
+    for cmd in (
+        "import otherfile; print(otherfile)",
+        "import other; print(other)",
+        "import mypkg; print(mypkg)",
+    ):
+        out = comparable_path(venv.run(["python", "-c", cmd]))
+        assert expected_path in out
+
+    # Compatible behaviour will not consider custom mappings
+    cmd = """\
+    try:
+        from mypkg import subpackage;
+    except ImportError as ex:
+        print(ex)
+    """
+    out = venv.run(["python", "-c", dedent(cmd)])
+    assert "cannot import name 'subpackage'" in out
+
+
+def test_pbr_integration(tmp_path, venv, editable_opts):
+    """Ensure editable installs work with pbr, issue #3500"""
+    files = {
+        "pyproject.toml": dedent(
+            """\
+            [build-system]
+            requires = ["setuptools"]
+            build-backend = "setuptools.build_meta"
+            """
+        ),
+        "setup.py": dedent(
+            """\
+            __import__('setuptools').setup(
+                pbr=True,
+                setup_requires=["pbr"],
+            )
+            """
+        ),
+        "setup.cfg": dedent(
+            """\
+            [metadata]
+            name = mypkg
+
+            [files]
+            packages =
+                mypkg
+            """
+        ),
+        "mypkg": {
+            "__init__.py": "",
+            "hello.py": "print('Hello world!')",
+        },
+        "other": {"test.txt": "Another file in here."},
+    }
+    venv.run(["python", "-m", "pip", "install", "pbr"])
+
+    with contexts.environment(PBR_VERSION="0.42"):
+        install_project("mypkg", venv, tmp_path, files, *editable_opts)
+
+    out = venv.run(["python", "-c", "import mypkg.hello"])
+    assert "Hello world!" in out
+
+
+class TestCustomBuildPy:
+    """
+    Issue #3501 indicates that some plugins/customizations might rely on:
+
+    1. ``build_py`` not running
+    2. ``build_py`` always copying files to ``build_lib``
+
+    During the transition period setuptools should prevent potential errors from
+    happening due to those assumptions.
+    """
+
+    # TODO: Remove tests after _run_build_steps is removed.
+
+    FILES = {
+        **TestOverallBehaviour.EXAMPLES["flat-layout"],
+        "setup.py": dedent(
+            """\
+            import pathlib
+            from setuptools import setup
+            from setuptools.command.build_py import build_py as orig
+
+            class my_build_py(orig):
+                def run(self):
+                    super().run()
+                    raise ValueError("TEST_RAISE")
+
+            setup(cmdclass={"build_py": my_build_py})
+            """
+        ),
+    }
+
+    def test_safeguarded_from_errors(self, tmp_path, venv):
+        """Ensure that errors in custom build_py are reported as warnings"""
+        # Warnings should show up
+        _, out = install_project("mypkg", venv, tmp_path, self.FILES)
+        assert "SetuptoolsDeprecationWarning" in out
+        assert "ValueError: TEST_RAISE" in out
+        # but installation should be successful
+        out = venv.run(["python", "-c", "import mypkg.mod1; print(mypkg.mod1.var)"])
+        assert "42" in out
+
+
+class TestCustomBuildWheel:
+    def install_custom_build_wheel(self, dist):
+        bdist_wheel_cls = dist.get_command_class("bdist_wheel")
+
+        class MyBdistWheel(bdist_wheel_cls):
+            def get_tag(self):
+                # In issue #3513, we can see that some extensions may try to access
+                # the `plat_name` property in bdist_wheel
+                if self.plat_name.startswith("macosx-"):
+                    _ = "macOS platform"
+                return super().get_tag()
+
+        dist.cmdclass["bdist_wheel"] = MyBdistWheel
+
+    def test_access_plat_name(self, tmpdir_cwd):
+        # Even when a custom bdist_wheel tries to access plat_name the build should
+        # be successful
+        jaraco.path.build({"module.py": "x = 42"})
+        dist = Distribution()
+        dist.script_name = "setup.py"
+        dist.set_defaults()
+        self.install_custom_build_wheel(dist)
+        cmd = editable_wheel(dist)
+        cmd.ensure_finalized()
+        cmd.run()
+        wheel_file = str(next(Path().glob('dist/*.whl')))
+        assert "editable" in wheel_file
+
+
+class TestCustomBuildExt:
+    def install_custom_build_ext_distutils(self, dist):
+        from distutils.command.build_ext import build_ext as build_ext_cls
+
+        class MyBuildExt(build_ext_cls):
+            pass
+
+        dist.cmdclass["build_ext"] = MyBuildExt
+
+    @pytest.mark.skipif(
+        sys.platform != "linux", reason="compilers may fail without correct setup"
+    )
+    def test_distutils_leave_inplace_files(self, tmpdir_cwd):
+        jaraco.path.build({"module.c": ""})
+        attrs = {
+            "ext_modules": [Extension("module", ["module.c"])],
+        }
+        dist = Distribution(attrs)
+        dist.script_name = "setup.py"
+        dist.set_defaults()
+        self.install_custom_build_ext_distutils(dist)
+        cmd = editable_wheel(dist)
+        cmd.ensure_finalized()
+        cmd.run()
+        wheel_file = str(next(Path().glob('dist/*.whl')))
+        assert "editable" in wheel_file
+        files = [p for p in Path().glob("module.*") if p.suffix != ".c"]
+        assert len(files) == 1
+        name = files[0].name
+        assert any(name.endswith(ext) for ext in EXTENSION_SUFFIXES)
+
+
+def test_debugging_tips(tmpdir_cwd, monkeypatch):
+    """Make sure to display useful debugging tips to the user."""
+    jaraco.path.build({"module.py": "x = 42"})
+    dist = Distribution()
+    dist.script_name = "setup.py"
+    dist.set_defaults()
+    cmd = editable_wheel(dist)
+    cmd.ensure_finalized()
+
+    SimulatedErr = type("SimulatedErr", (Exception,), {})
+    simulated_failure = Mock(side_effect=SimulatedErr())
+    monkeypatch.setattr(cmd, "get_finalized_command", simulated_failure)
+
+    expected_msg = "following steps are recommended to help debug"
+    with pytest.raises(SimulatedErr), pytest.warns(_DebuggingTips, match=expected_msg):
+        cmd.run()
+
+
+@pytest.mark.filterwarnings("error")
+def test_encode_pth():
+    """Ensure _encode_pth function does not produce encoding warnings"""
+    content = _encode_pth("tkmilan_ç_utf8")  # no warnings (would be turned into errors)
+    assert isinstance(content, bytes)
+
+
+def install_project(name, venv, tmp_path, files, *opts):
+    project = tmp_path / name
+    project.mkdir()
+    jaraco.path.build(files, prefix=project)
+    opts = [*opts, "--no-build-isolation"]  # force current version of setuptools
+    out = venv.run(
+        ["python", "-m", "pip", "-v", "install", "-e", str(project), *opts],
+        stderr=subprocess.STDOUT,
+    )
+    return project, out
+
+
+def _addsitedirs(new_dirs):
+    """To use this function, it is necessary to insert new_dir in front of sys.path.
+    The Python process will try to import a ``sitecustomize`` module on startup.
+    If we manipulate sys.path/PYTHONPATH, we can force it to run our code,
+    which invokes ``addsitedir`` and ensure ``.pth`` files are loaded.
+    """
+    content = '\n'.join(
+        ("import site",)
+        + tuple(f"site.addsitedir({os.fspath(new_dir)!r})" for new_dir in new_dirs)
+    )
+    (new_dirs[0] / "sitecustomize.py").write_text(content, encoding="utf-8")
+
+
+# ---- Assertion Helpers ----
+
+
+def assert_path(pkg, expected):
+    # __path__ is not guaranteed to exist, so we have to account for that
+    if pkg.__path__:
+        path = next(iter(pkg.__path__), None)
+        if path:
+            assert str(Path(path).resolve()) == expected
+
+
+def assert_link_to(file: Path, other: Path) -> None:
+    if file.is_symlink():
+        assert str(file.resolve()) == str(other.resolve())
+    else:
+        file_stat = file.stat()
+        other_stat = other.stat()
+        assert file_stat[stat.ST_INO] == other_stat[stat.ST_INO]
+        assert file_stat[stat.ST_DEV] == other_stat[stat.ST_DEV]
+
+
+def comparable_path(str_with_path: str) -> str:
+    return str_with_path.lower().replace(os.sep, "/").replace("//", "/")
diff --git a/setuptools/tests/test_egg_info.py b/setuptools/tests/test_egg_info.py
new file mode 100644
index 0000000000..3653be096f
--- /dev/null
+++ b/setuptools/tests/test_egg_info.py
@@ -0,0 +1,1306 @@
+from __future__ import annotations
+
+import ast
+import glob
+import os
+import re
+import stat
+import sys
+import time
+from pathlib import Path
+from unittest import mock
+
+import pytest
+from jaraco import path
+
+from setuptools import errors
+from setuptools.command.egg_info import egg_info, manifest_maker, write_entries
+from setuptools.dist import Distribution
+
+from . import contexts, environment
+from .textwrap import DALS
+
+
+class Environment(str):
+    pass
+
+
+@pytest.fixture
+def env():
+    with contexts.tempdir(prefix='setuptools-test.') as env_dir:
+        env = Environment(env_dir)
+        os.chmod(env_dir, stat.S_IRWXU)
+        subs = 'home', 'lib', 'scripts', 'data', 'egg-base'
+        env.paths = dict((dirname, os.path.join(env_dir, dirname)) for dirname in subs)
+        list(map(os.mkdir, env.paths.values()))
+        path.build({
+            env.paths['home']: {
+                '.pydistutils.cfg': DALS(
+                    """
+                [egg_info]
+                egg-base = {egg-base}
+                """.format(**env.paths)
+                )
+            }
+        })
+        yield env
+
+
+class TestEggInfo:
+    setup_script = DALS(
+        """
+        from setuptools import setup
+
+        setup(
+            name='foo',
+            py_modules=['hello'],
+            entry_points={'console_scripts': ['hi = hello.run']},
+            zip_safe=False,
+        )
+        """
+    )
+
+    def _create_project(self):
+        path.build({
+            'setup.py': self.setup_script,
+            'hello.py': DALS(
+                """
+                def run():
+                    print('hello')
+                """
+            ),
+        })
+
+    @staticmethod
+    def _extract_mv_version(pkg_info_lines: list[str]) -> tuple[int, int]:
+        version_str = pkg_info_lines[0].split(' ')[1]
+        major, minor = map(int, version_str.split('.')[:2])
+        return major, minor
+
+    def test_egg_info_save_version_info_setup_empty(self, tmpdir_cwd, env):
+        """
+        When the egg_info section is empty or not present, running
+        save_version_info should add the settings to the setup.cfg
+        in a deterministic order.
+        """
+        setup_cfg = os.path.join(env.paths['home'], 'setup.cfg')
+        dist = Distribution()
+        ei = egg_info(dist)
+        ei.initialize_options()
+        ei.save_version_info(setup_cfg)
+
+        with open(setup_cfg, 'r', encoding="utf-8") as f:
+            content = f.read()
+
+        assert '[egg_info]' in content
+        assert 'tag_build =' in content
+        assert 'tag_date = 0' in content
+
+        expected_order = (
+            'tag_build',
+            'tag_date',
+        )
+
+        self._validate_content_order(content, expected_order)
+
+    @staticmethod
+    def _validate_content_order(content, expected):
+        """
+        Assert that the strings in expected appear in content
+        in order.
+        """
+        pattern = '.*'.join(expected)
+        flags = re.MULTILINE | re.DOTALL
+        assert re.search(pattern, content, flags)
+
+    def test_egg_info_save_version_info_setup_defaults(self, tmpdir_cwd, env):
+        """
+        When running save_version_info on an existing setup.cfg
+        with the 'default' values present from a previous run,
+        the file should remain unchanged.
+        """
+        setup_cfg = os.path.join(env.paths['home'], 'setup.cfg')
+        path.build({
+            setup_cfg: DALS(
+                """
+            [egg_info]
+            tag_build =
+            tag_date = 0
+            """
+            ),
+        })
+        dist = Distribution()
+        ei = egg_info(dist)
+        ei.initialize_options()
+        ei.save_version_info(setup_cfg)
+
+        with open(setup_cfg, 'r', encoding="utf-8") as f:
+            content = f.read()
+
+        assert '[egg_info]' in content
+        assert 'tag_build =' in content
+        assert 'tag_date = 0' in content
+
+        expected_order = (
+            'tag_build',
+            'tag_date',
+        )
+
+        self._validate_content_order(content, expected_order)
+
+    def test_expected_files_produced(self, tmpdir_cwd, env):
+        self._create_project()
+
+        self._run_egg_info_command(tmpdir_cwd, env)
+        actual = os.listdir('foo.egg-info')
+
+        expected = [
+            'PKG-INFO',
+            'SOURCES.txt',
+            'dependency_links.txt',
+            'entry_points.txt',
+            'not-zip-safe',
+            'top_level.txt',
+        ]
+        assert sorted(actual) == expected
+
+    def test_handling_utime_error(self, tmpdir_cwd, env):
+        dist = Distribution()
+        ei = egg_info(dist)
+        utime_patch = mock.patch('os.utime', side_effect=OSError("TEST"))
+        mkpath_patch = mock.patch(
+            'setuptools.command.egg_info.egg_info.mkpath', return_val=None
+        )
+
+        with utime_patch, mkpath_patch:
+            import distutils.errors
+
+            msg = r"Cannot update time stamp of directory 'None'"
+            with pytest.raises(distutils.errors.DistutilsFileError, match=msg):
+                ei.run()
+
+    def test_license_is_a_string(self, tmpdir_cwd, env):
+        setup_config = DALS(
+            """
+            [metadata]
+            name=foo
+            version=0.0.1
+            license=file:MIT
+            """
+        )
+
+        setup_script = DALS(
+            """
+            from setuptools import setup
+
+            setup()
+            """
+        )
+
+        path.build({
+            'setup.py': setup_script,
+            'setup.cfg': setup_config,
+        })
+
+        # This command should fail with a ValueError, but because it's
+        # currently configured to use a subprocess, the actual traceback
+        # object is lost and we need to parse it from stderr
+        with pytest.raises(AssertionError) as exc:
+            self._run_egg_info_command(tmpdir_cwd, env)
+
+        # The only argument to the assertion error should be a traceback
+        # containing a ValueError
+        assert 'ValueError' in exc.value.args[0]
+
+    def test_rebuilt(self, tmpdir_cwd, env):
+        """Ensure timestamps are updated when the command is re-run."""
+        self._create_project()
+
+        self._run_egg_info_command(tmpdir_cwd, env)
+        timestamp_a = os.path.getmtime('foo.egg-info')
+
+        # arbitrary sleep just to handle *really* fast systems
+        time.sleep(0.001)
+
+        self._run_egg_info_command(tmpdir_cwd, env)
+        timestamp_b = os.path.getmtime('foo.egg-info')
+
+        assert timestamp_a != timestamp_b
+
+    def test_manifest_template_is_read(self, tmpdir_cwd, env):
+        self._create_project()
+        path.build({
+            'MANIFEST.in': DALS(
+                """
+                recursive-include docs *.rst
+            """
+            ),
+            'docs': {
+                'usage.rst': "Run 'hi'",
+            },
+        })
+        self._run_egg_info_command(tmpdir_cwd, env)
+        egg_info_dir = os.path.join('.', 'foo.egg-info')
+        sources_txt = os.path.join(egg_info_dir, 'SOURCES.txt')
+        with open(sources_txt, encoding="utf-8") as f:
+            assert 'docs/usage.rst' in f.read().split('\n')
+
+    def _setup_script_with_requires(self, requires, use_setup_cfg=False):
+        setup_script = DALS(
+            """
+            from setuptools import setup
+
+            setup(name='foo', zip_safe=False, %s)
+            """
+        ) % ('' if use_setup_cfg else requires)
+        setup_config = requires if use_setup_cfg else ''
+        path.build({
+            'setup.py': setup_script,
+            'setup.cfg': setup_config,
+        })
+
+    mismatch_marker = f"python_version<'{sys.version_info[0]}'"
+    # Alternate equivalent syntax.
+    mismatch_marker_alternate = f'python_version < "{sys.version_info[0]}"'
+    invalid_marker = "<=>++"
+
+    class RequiresTestHelper:
+        @staticmethod
+        def parametrize(*test_list, **format_dict):
+            idlist = []
+            argvalues = []
+            for test in test_list:
+                test_params = test.lstrip().split('\n\n', 3)
+                name_kwargs = test_params.pop(0).split('\n')
+                if len(name_kwargs) > 1:
+                    val = name_kwargs[1].strip()
+                    install_cmd_kwargs = ast.literal_eval(val)
+                else:
+                    install_cmd_kwargs = {}
+                name = name_kwargs[0].strip()
+                setup_py_requires, setup_cfg_requires, expected_requires = [
+                    DALS(a).format(**format_dict) for a in test_params
+                ]
+                for id_, requires, use_cfg in (
+                    (name, setup_py_requires, False),
+                    (name + '_in_setup_cfg', setup_cfg_requires, True),
+                ):
+                    idlist.append(id_)
+                    marks = ()
+                    if requires.startswith('@xfail\n'):
+                        requires = requires[7:]
+                        marks = pytest.mark.xfail
+                    argvalues.append(
+                        pytest.param(
+                            requires,
+                            use_cfg,
+                            expected_requires,
+                            install_cmd_kwargs,
+                            marks=marks,
+                        )
+                    )
+            return pytest.mark.parametrize(
+                (
+                    "requires",
+                    "use_setup_cfg",
+                    "expected_requires",
+                    "install_cmd_kwargs",
+                ),
+                argvalues,
+                ids=idlist,
+            )
+
+    @RequiresTestHelper.parametrize(
+        # Format of a test:
+        #
+        # id
+        # install_cmd_kwargs [optional]
+        #
+        # requires block (when used in setup.py)
+        #
+        # requires block (when used in setup.cfg)
+        #
+        # expected contents of requires.txt
+        """
+        install_requires_deterministic
+
+        install_requires=["wheel>=0.5", "pytest"]
+
+        [options]
+        install_requires =
+            wheel>=0.5
+            pytest
+
+        wheel>=0.5
+        pytest
+        """,
+        """
+        install_requires_ordered
+
+        install_requires=["pytest>=3.0.2,!=10.9999"]
+
+        [options]
+        install_requires =
+            pytest>=3.0.2,!=10.9999
+
+        pytest!=10.9999,>=3.0.2
+        """,
+        """
+        install_requires_with_marker
+
+        install_requires=["barbazquux;{mismatch_marker}"],
+
+        [options]
+        install_requires =
+            barbazquux; {mismatch_marker}
+
+        [:{mismatch_marker_alternate}]
+        barbazquux
+        """,
+        """
+        install_requires_with_extra
+        {'cmd': ['egg_info']}
+
+        install_requires=["barbazquux [test]"],
+
+        [options]
+        install_requires =
+            barbazquux [test]
+
+        barbazquux[test]
+        """,
+        """
+        install_requires_with_extra_and_marker
+
+        install_requires=["barbazquux [test]; {mismatch_marker}"],
+
+        [options]
+        install_requires =
+            barbazquux [test]; {mismatch_marker}
+
+        [:{mismatch_marker_alternate}]
+        barbazquux[test]
+        """,
+        """
+        setup_requires_with_markers
+
+        setup_requires=["barbazquux;{mismatch_marker}"],
+
+        [options]
+        setup_requires =
+            barbazquux; {mismatch_marker}
+
+        """,
+        """
+        extras_require_with_extra
+        {'cmd': ['egg_info']}
+
+        extras_require={{"extra": ["barbazquux [test]"]}},
+
+        [options.extras_require]
+        extra = barbazquux [test]
+
+        [extra]
+        barbazquux[test]
+        """,
+        """
+        extras_require_with_extra_and_marker_in_req
+
+        extras_require={{"extra": ["barbazquux [test]; {mismatch_marker}"]}},
+
+        [options.extras_require]
+        extra =
+            barbazquux [test]; {mismatch_marker}
+
+        [extra]
+
+        [extra:{mismatch_marker_alternate}]
+        barbazquux[test]
+        """,
+        # FIXME: ConfigParser does not allow : in key names!
+        """
+        extras_require_with_marker
+
+        extras_require={{":{mismatch_marker}": ["barbazquux"]}},
+
+        @xfail
+        [options.extras_require]
+        :{mismatch_marker} = barbazquux
+
+        [:{mismatch_marker}]
+        barbazquux
+        """,
+        """
+        extras_require_with_marker_in_req
+
+        extras_require={{"extra": ["barbazquux; {mismatch_marker}"]}},
+
+        [options.extras_require]
+        extra =
+            barbazquux; {mismatch_marker}
+
+        [extra]
+
+        [extra:{mismatch_marker_alternate}]
+        barbazquux
+        """,
+        """
+        extras_require_with_empty_section
+
+        extras_require={{"empty": []}},
+
+        [options.extras_require]
+        empty =
+
+        [empty]
+        """,
+        # Format arguments.
+        invalid_marker=invalid_marker,
+        mismatch_marker=mismatch_marker,
+        mismatch_marker_alternate=mismatch_marker_alternate,
+    )
+    def test_requires(
+        self,
+        tmpdir_cwd,
+        env,
+        requires,
+        use_setup_cfg,
+        expected_requires,
+        install_cmd_kwargs,
+    ):
+        self._setup_script_with_requires(requires, use_setup_cfg)
+        self._run_egg_info_command(tmpdir_cwd, env, **install_cmd_kwargs)
+        egg_info_dir = os.path.join('.', 'foo.egg-info')
+        requires_txt = os.path.join(egg_info_dir, 'requires.txt')
+        if os.path.exists(requires_txt):
+            with open(requires_txt, encoding="utf-8") as fp:
+                install_requires = fp.read()
+        else:
+            install_requires = ''
+        assert install_requires.lstrip() == expected_requires
+        assert glob.glob(os.path.join(env.paths['lib'], 'barbazquux*')) == []
+
+    def test_install_requires_unordered_disallowed(self, tmpdir_cwd, env):
+        """
+        Packages that pass unordered install_requires sequences
+        should be rejected as they produce non-deterministic
+        builds. See #458.
+        """
+        req = 'install_requires={"fake-factory==0.5.2", "pytz"}'
+        self._setup_script_with_requires(req)
+        with pytest.raises(AssertionError):
+            self._run_egg_info_command(tmpdir_cwd, env)
+
+    def test_extras_require_with_invalid_marker(self, tmpdir_cwd, env):
+        tmpl = 'extras_require={{":{marker}": ["barbazquux"]}},'
+        req = tmpl.format(marker=self.invalid_marker)
+        self._setup_script_with_requires(req)
+        with pytest.raises(AssertionError):
+            self._run_egg_info_command(tmpdir_cwd, env)
+        assert glob.glob(os.path.join(env.paths['lib'], 'barbazquux*')) == []
+
+    def test_extras_require_with_invalid_marker_in_req(self, tmpdir_cwd, env):
+        tmpl = 'extras_require={{"extra": ["barbazquux; {marker}"]}},'
+        req = tmpl.format(marker=self.invalid_marker)
+        self._setup_script_with_requires(req)
+        with pytest.raises(AssertionError):
+            self._run_egg_info_command(tmpdir_cwd, env)
+        assert glob.glob(os.path.join(env.paths['lib'], 'barbazquux*')) == []
+
+    def test_provides_extra(self, tmpdir_cwd, env):
+        self._setup_script_with_requires('extras_require={"foobar": ["barbazquux"]},')
+        environ = os.environ.copy().update(
+            HOME=env.paths['home'],
+        )
+        environment.run_setup_py(
+            cmd=['egg_info'],
+            pypath=os.pathsep.join([env.paths['lib'], str(tmpdir_cwd)]),
+            data_stream=1,
+            env=environ,
+        )
+        egg_info_dir = os.path.join('.', 'foo.egg-info')
+        with open(os.path.join(egg_info_dir, 'PKG-INFO'), encoding="utf-8") as fp:
+            pkg_info_lines = fp.read().split('\n')
+        assert 'Provides-Extra: foobar' in pkg_info_lines
+        assert 'Metadata-Version: 2.4' in pkg_info_lines
+
+    def test_doesnt_provides_extra(self, tmpdir_cwd, env):
+        self._setup_script_with_requires(
+            """install_requires=["spam ; python_version<'3.6'"]"""
+        )
+        environ = os.environ.copy().update(
+            HOME=env.paths['home'],
+        )
+        environment.run_setup_py(
+            cmd=['egg_info'],
+            pypath=os.pathsep.join([env.paths['lib'], str(tmpdir_cwd)]),
+            data_stream=1,
+            env=environ,
+        )
+        egg_info_dir = os.path.join('.', 'foo.egg-info')
+        with open(os.path.join(egg_info_dir, 'PKG-INFO'), encoding="utf-8") as fp:
+            pkg_info_text = fp.read()
+        assert 'Provides-Extra:' not in pkg_info_text
+
+    @pytest.mark.parametrize(
+        ('files', 'license_in_sources'),
+        [
+            (
+                {
+                    'setup.cfg': DALS(
+                        """
+                              [metadata]
+                              license_file = LICENSE
+                              """
+                    ),
+                    'LICENSE': "Test license",
+                },
+                True,
+            ),  # with license
+            (
+                {
+                    'setup.cfg': DALS(
+                        """
+                              [metadata]
+                              license_file = INVALID_LICENSE
+                              """
+                    ),
+                    'LICENSE': "Test license",
+                },
+                False,
+            ),  # with an invalid license
+            (
+                {
+                    'setup.cfg': DALS(
+                        """
+                              """
+                    ),
+                    'LICENSE': "Test license",
+                },
+                True,
+            ),  # no license_file attribute, LICENSE auto-included
+            (
+                {
+                    'setup.cfg': DALS(
+                        """
+                              [metadata]
+                              license_file = LICENSE
+                              """
+                    ),
+                    'MANIFEST.in': "exclude LICENSE",
+                    'LICENSE': "Test license",
+                },
+                True,
+            ),  # manifest is overwritten by license_file
+            pytest.param(
+                {
+                    'setup.cfg': DALS(
+                        """
+                              [metadata]
+                              license_file = LICEN[CS]E*
+                              """
+                    ),
+                    'LICENSE': "Test license",
+                },
+                True,
+                id="glob_pattern",
+            ),
+        ],
+    )
+    def test_setup_cfg_license_file(self, tmpdir_cwd, env, files, license_in_sources):
+        self._create_project()
+        path.build(files)
+
+        environment.run_setup_py(
+            cmd=['egg_info'],
+            pypath=os.pathsep.join([env.paths['lib'], str(tmpdir_cwd)]),
+        )
+        egg_info_dir = os.path.join('.', 'foo.egg-info')
+
+        sources_text = Path(egg_info_dir, "SOURCES.txt").read_text(encoding="utf-8")
+
+        if license_in_sources:
+            assert 'LICENSE' in sources_text
+        else:
+            assert 'LICENSE' not in sources_text
+            # for invalid license test
+            assert 'INVALID_LICENSE' not in sources_text
+
+    @pytest.mark.parametrize(
+        ('files', 'incl_licenses', 'excl_licenses'),
+        [
+            (
+                {
+                    'setup.cfg': DALS(
+                        """
+                              [metadata]
+                              license_files =
+                                  LICENSE-ABC
+                                  LICENSE-XYZ
+                              """
+                    ),
+                    'LICENSE-ABC': "ABC license",
+                    'LICENSE-XYZ': "XYZ license",
+                },
+                ['LICENSE-ABC', 'LICENSE-XYZ'],
+                [],
+            ),  # with licenses
+            (
+                {
+                    'setup.cfg': DALS(
+                        """
+                              [metadata]
+                              license_files = LICENSE-ABC, LICENSE-XYZ
+                              """
+                    ),
+                    'LICENSE-ABC': "ABC license",
+                    'LICENSE-XYZ': "XYZ license",
+                },
+                ['LICENSE-ABC', 'LICENSE-XYZ'],
+                [],
+            ),  # with commas
+            (
+                {
+                    'setup.cfg': DALS(
+                        """
+                              [metadata]
+                              license_files =
+                                  LICENSE-ABC
+                              """
+                    ),
+                    'LICENSE-ABC': "ABC license",
+                    'LICENSE-XYZ': "XYZ license",
+                },
+                ['LICENSE-ABC'],
+                ['LICENSE-XYZ'],
+            ),  # with one license
+            (
+                {
+                    'setup.cfg': DALS(
+                        """
+                              [metadata]
+                              license_files =
+                              """
+                    ),
+                    'LICENSE-ABC': "ABC license",
+                    'LICENSE-XYZ': "XYZ license",
+                },
+                [],
+                ['LICENSE-ABC', 'LICENSE-XYZ'],
+            ),  # empty
+            (
+                {
+                    'setup.cfg': DALS(
+                        """
+                              [metadata]
+                              license_files = LICENSE-XYZ
+                              """
+                    ),
+                    'LICENSE-ABC': "ABC license",
+                    'LICENSE-XYZ': "XYZ license",
+                },
+                ['LICENSE-XYZ'],
+                ['LICENSE-ABC'],
+            ),  # on same line
+            (
+                {
+                    'setup.cfg': DALS(
+                        """
+                              [metadata]
+                              license_files =
+                                  LICENSE-ABC
+                                  INVALID_LICENSE
+                              """
+                    ),
+                    'LICENSE-ABC': "Test license",
+                },
+                ['LICENSE-ABC'],
+                ['INVALID_LICENSE'],
+            ),  # with an invalid license
+            (
+                {
+                    'setup.cfg': DALS(
+                        """
+                              """
+                    ),
+                    'LICENSE': "Test license",
+                },
+                ['LICENSE'],
+                [],
+            ),  # no license_files attribute, LICENSE auto-included
+            (
+                {
+                    'setup.cfg': DALS(
+                        """
+                              [metadata]
+                              license_files = LICENSE
+                              """
+                    ),
+                    'MANIFEST.in': "exclude LICENSE",
+                    'LICENSE': "Test license",
+                },
+                ['LICENSE'],
+                [],
+            ),  # manifest is overwritten by license_files
+            (
+                {
+                    'setup.cfg': DALS(
+                        """
+                              [metadata]
+                              license_files =
+                                  LICENSE-ABC
+                                  LICENSE-XYZ
+                              """
+                    ),
+                    'MANIFEST.in': "exclude LICENSE-XYZ",
+                    'LICENSE-ABC': "ABC license",
+                    'LICENSE-XYZ': "XYZ license",
+                    # manifest is overwritten by license_files
+                },
+                ['LICENSE-ABC', 'LICENSE-XYZ'],
+                [],
+            ),
+            pytest.param(
+                {
+                    'setup.cfg': "",
+                    'LICENSE-ABC': "ABC license",
+                    'COPYING-ABC': "ABC copying",
+                    'NOTICE-ABC': "ABC notice",
+                    'AUTHORS-ABC': "ABC authors",
+                    'LICENCE-XYZ': "XYZ license",
+                    'LICENSE': "License",
+                    'INVALID-LICENSE': "Invalid license",
+                },
+                [
+                    'LICENSE-ABC',
+                    'COPYING-ABC',
+                    'NOTICE-ABC',
+                    'AUTHORS-ABC',
+                    'LICENCE-XYZ',
+                    'LICENSE',
+                ],
+                ['INVALID-LICENSE'],
+                # ('LICEN[CS]E*', 'COPYING*', 'NOTICE*', 'AUTHORS*')
+                id="default_glob_patterns",
+            ),
+            pytest.param(
+                {
+                    'setup.cfg': DALS(
+                        """
+                              [metadata]
+                              license_files =
+                                  LICENSE*
+                              """
+                    ),
+                    'LICENSE-ABC': "ABC license",
+                    'NOTICE-XYZ': "XYZ notice",
+                },
+                ['LICENSE-ABC'],
+                ['NOTICE-XYZ'],
+                id="no_default_glob_patterns",
+            ),
+            pytest.param(
+                {
+                    'setup.cfg': DALS(
+                        """
+                              [metadata]
+                              license_files =
+                                  LICENSE-ABC
+                                  LICENSE*
+                              """
+                    ),
+                    'LICENSE-ABC': "ABC license",
+                },
+                ['LICENSE-ABC'],
+                [],
+                id="files_only_added_once",
+            ),
+            pytest.param(
+                {
+                    'setup.cfg': DALS(
+                        """
+                              [metadata]
+                              license_files = **/LICENSE
+                              """
+                    ),
+                    'LICENSE': "ABC license",
+                    'LICENSE-OTHER': "Don't include",
+                    'vendor': {'LICENSE': "Vendor license"},
+                },
+                ['LICENSE', 'vendor/LICENSE'],
+                ['LICENSE-OTHER'],
+                id="recursive_glob",
+            ),
+        ],
+    )
+    def test_setup_cfg_license_files(
+        self, tmpdir_cwd, env, files, incl_licenses, excl_licenses
+    ):
+        self._create_project()
+        path.build(files)
+
+        environment.run_setup_py(
+            cmd=['egg_info'],
+            pypath=os.pathsep.join([env.paths['lib'], str(tmpdir_cwd)]),
+        )
+        egg_info_dir = os.path.join('.', 'foo.egg-info')
+
+        sources_text = Path(egg_info_dir, "SOURCES.txt").read_text(encoding="utf-8")
+        sources_lines = [line.strip() for line in sources_text.splitlines()]
+
+        for lf in incl_licenses:
+            assert sources_lines.count(lf) == 1
+
+        for lf in excl_licenses:
+            assert sources_lines.count(lf) == 0
+
+    @pytest.mark.parametrize(
+        ('files', 'incl_licenses', 'excl_licenses'),
+        [
+            (
+                {
+                    'setup.cfg': DALS(
+                        """
+                              [metadata]
+                              license_file =
+                              license_files =
+                              """
+                    ),
+                    'LICENSE-ABC': "ABC license",
+                    'LICENSE-XYZ': "XYZ license",
+                },
+                [],
+                ['LICENSE-ABC', 'LICENSE-XYZ'],
+            ),  # both empty
+            (
+                {
+                    'setup.cfg': DALS(
+                        """
+                              [metadata]
+                              license_file =
+                                  LICENSE-ABC
+                                  LICENSE-XYZ
+                              """
+                    ),
+                    'LICENSE-ABC': "ABC license",
+                    'LICENSE-XYZ': "XYZ license",
+                    # license_file is still singular
+                },
+                [],
+                ['LICENSE-ABC', 'LICENSE-XYZ'],
+            ),
+            (
+                {
+                    'setup.cfg': DALS(
+                        """
+                              [metadata]
+                              license_file = LICENSE-ABC
+                              license_files =
+                                  LICENSE-XYZ
+                                  LICENSE-PQR
+                              """
+                    ),
+                    'LICENSE-ABC': "ABC license",
+                    'LICENSE-PQR': "PQR license",
+                    'LICENSE-XYZ': "XYZ license",
+                },
+                ['LICENSE-ABC', 'LICENSE-PQR', 'LICENSE-XYZ'],
+                [],
+            ),  # combined
+            (
+                {
+                    'setup.cfg': DALS(
+                        """
+                              [metadata]
+                              license_file = LICENSE-ABC
+                              license_files =
+                                  LICENSE-ABC
+                                  LICENSE-XYZ
+                                  LICENSE-PQR
+                              """
+                    ),
+                    'LICENSE-ABC': "ABC license",
+                    'LICENSE-PQR': "PQR license",
+                    'LICENSE-XYZ': "XYZ license",
+                    # duplicate license
+                },
+                ['LICENSE-ABC', 'LICENSE-PQR', 'LICENSE-XYZ'],
+                [],
+            ),
+            (
+                {
+                    'setup.cfg': DALS(
+                        """
+                              [metadata]
+                              license_file = LICENSE-ABC
+                              license_files =
+                                  LICENSE-XYZ
+                              """
+                    ),
+                    'LICENSE-ABC': "ABC license",
+                    'LICENSE-PQR': "PQR license",
+                    'LICENSE-XYZ': "XYZ license",
+                    # combined subset
+                },
+                ['LICENSE-ABC', 'LICENSE-XYZ'],
+                ['LICENSE-PQR'],
+            ),
+            (
+                {
+                    'setup.cfg': DALS(
+                        """
+                              [metadata]
+                              license_file = LICENSE-ABC
+                              license_files =
+                                  LICENSE-XYZ
+                                  LICENSE-PQR
+                              """
+                    ),
+                    'LICENSE-PQR': "Test license",
+                    # with invalid licenses
+                },
+                ['LICENSE-PQR'],
+                ['LICENSE-ABC', 'LICENSE-XYZ'],
+            ),
+            (
+                {
+                    'setup.cfg': DALS(
+                        """
+                              [metadata]
+                              license_file = LICENSE-ABC
+                              license_files =
+                                LICENSE-PQR
+                                LICENSE-XYZ
+                              """
+                    ),
+                    'MANIFEST.in': "exclude LICENSE-ABC\nexclude LICENSE-PQR",
+                    'LICENSE-ABC': "ABC license",
+                    'LICENSE-PQR': "PQR license",
+                    'LICENSE-XYZ': "XYZ license",
+                    # manifest is overwritten
+                },
+                ['LICENSE-ABC', 'LICENSE-PQR', 'LICENSE-XYZ'],
+                [],
+            ),
+            pytest.param(
+                {
+                    'setup.cfg': DALS(
+                        """
+                              [metadata]
+                              license_file = LICENSE*
+                              """
+                    ),
+                    'LICENSE-ABC': "ABC license",
+                    'NOTICE-XYZ': "XYZ notice",
+                },
+                ['LICENSE-ABC'],
+                ['NOTICE-XYZ'],
+                id="no_default_glob_patterns",
+            ),
+            pytest.param(
+                {
+                    'setup.cfg': DALS(
+                        """
+                              [metadata]
+                              license_file = LICENSE*
+                              license_files =
+                                NOTICE*
+                              """
+                    ),
+                    'LICENSE-ABC': "ABC license",
+                    'NOTICE-ABC': "ABC notice",
+                    'AUTHORS-ABC': "ABC authors",
+                },
+                ['LICENSE-ABC', 'NOTICE-ABC'],
+                ['AUTHORS-ABC'],
+                id="combined_glob_patterrns",
+            ),
+        ],
+    )
+    def test_setup_cfg_license_file_license_files(
+        self, tmpdir_cwd, env, files, incl_licenses, excl_licenses
+    ):
+        self._create_project()
+        path.build(files)
+
+        environment.run_setup_py(
+            cmd=['egg_info'],
+            pypath=os.pathsep.join([env.paths['lib'], str(tmpdir_cwd)]),
+        )
+        egg_info_dir = os.path.join('.', 'foo.egg-info')
+
+        sources_text = Path(egg_info_dir, "SOURCES.txt").read_text(encoding="utf-8")
+        sources_lines = [line.strip() for line in sources_text.splitlines()]
+
+        for lf in incl_licenses:
+            assert sources_lines.count(lf) == 1
+
+        for lf in excl_licenses:
+            assert sources_lines.count(lf) == 0
+
+    def test_license_file_attr_pkg_info(self, tmpdir_cwd, env):
+        """All matched license files should have a corresponding License-File."""
+        self._create_project()
+        path.build({
+            "setup.cfg": DALS(
+                """
+                              [metadata]
+                              license_files =
+                                  NOTICE*
+                                  LICENSE*
+                                  **/LICENSE
+                              """
+            ),
+            "LICENSE-ABC": "ABC license",
+            "LICENSE-XYZ": "XYZ license",
+            "NOTICE": "included",
+            "IGNORE": "not include",
+            "vendor": {'LICENSE': "Vendor license"},
+        })
+
+        environment.run_setup_py(
+            cmd=['egg_info'],
+            pypath=os.pathsep.join([env.paths['lib'], str(tmpdir_cwd)]),
+        )
+        egg_info_dir = os.path.join('.', 'foo.egg-info')
+        with open(os.path.join(egg_info_dir, 'PKG-INFO'), encoding="utf-8") as fp:
+            pkg_info_lines = fp.read().split('\n')
+        license_file_lines = [
+            line for line in pkg_info_lines if line.startswith('License-File:')
+        ]
+
+        # Only 'NOTICE', LICENSE-ABC', and 'LICENSE-XYZ' should have been matched
+        # Also assert that order from license_files is keeped
+        assert len(license_file_lines) == 4
+        assert "License-File: NOTICE" == license_file_lines[0]
+        assert "License-File: LICENSE-ABC" in license_file_lines[1:]
+        assert "License-File: LICENSE-XYZ" in license_file_lines[1:]
+        assert "License-File: vendor/LICENSE" in license_file_lines[3]
+
+    def test_metadata_version(self, tmpdir_cwd, env):
+        """Make sure latest metadata version is used by default."""
+        self._setup_script_with_requires("")
+        environment.run_setup_py(
+            cmd=['egg_info'],
+            pypath=os.pathsep.join([env.paths['lib'], str(tmpdir_cwd)]),
+            data_stream=1,
+        )
+        egg_info_dir = os.path.join('.', 'foo.egg-info')
+        with open(os.path.join(egg_info_dir, 'PKG-INFO'), encoding="utf-8") as fp:
+            pkg_info_lines = fp.read().split('\n')
+        # Update metadata version if changed
+        assert self._extract_mv_version(pkg_info_lines) == (2, 4)
+
+    def test_long_description_content_type(self, tmpdir_cwd, env):
+        # Test that specifying a `long_description_content_type` keyword arg to
+        # the `setup` function results in writing a `Description-Content-Type`
+        # line to the `PKG-INFO` file in the `.egg-info`
+        # directory.
+        # `Description-Content-Type` is described at
+        # https://github.com/pypa/python-packaging-user-guide/pull/258
+
+        self._setup_script_with_requires(
+            """long_description_content_type='text/markdown',"""
+        )
+        environ = os.environ.copy().update(
+            HOME=env.paths['home'],
+        )
+        environment.run_setup_py(
+            cmd=['egg_info'],
+            pypath=os.pathsep.join([env.paths['lib'], str(tmpdir_cwd)]),
+            data_stream=1,
+            env=environ,
+        )
+        egg_info_dir = os.path.join('.', 'foo.egg-info')
+        with open(os.path.join(egg_info_dir, 'PKG-INFO'), encoding="utf-8") as fp:
+            pkg_info_lines = fp.read().split('\n')
+        expected_line = 'Description-Content-Type: text/markdown'
+        assert expected_line in pkg_info_lines
+        assert 'Metadata-Version: 2.4' in pkg_info_lines
+
+    def test_long_description(self, tmpdir_cwd, env):
+        # Test that specifying `long_description` and `long_description_content_type`
+        # keyword args to the `setup` function results in writing
+        # the description in the message payload of the `PKG-INFO` file
+        # in the `.egg-info` directory.
+        self._setup_script_with_requires(
+            "long_description='This is a long description\\nover multiple lines',"
+            "long_description_content_type='text/markdown',"
+        )
+        environment.run_setup_py(
+            cmd=['egg_info'],
+            pypath=os.pathsep.join([env.paths['lib'], str(tmpdir_cwd)]),
+            data_stream=1,
+        )
+        egg_info_dir = os.path.join('.', 'foo.egg-info')
+        with open(os.path.join(egg_info_dir, 'PKG-INFO'), encoding="utf-8") as fp:
+            pkg_info_lines = fp.read().split('\n')
+        assert 'Metadata-Version: 2.4' in pkg_info_lines
+        assert '' == pkg_info_lines[-1]  # last line should be empty
+        long_desc_lines = pkg_info_lines[pkg_info_lines.index('') :]
+        assert 'This is a long description' in long_desc_lines
+        assert 'over multiple lines' in long_desc_lines
+
+    def test_project_urls(self, tmpdir_cwd, env):
+        # Test that specifying a `project_urls` dict to the `setup`
+        # function results in writing multiple `Project-URL` lines to
+        # the `PKG-INFO` file in the `.egg-info`
+        # directory.
+        # `Project-URL` is described at https://packaging.python.org
+        #     /specifications/core-metadata/#project-url-multiple-use
+
+        self._setup_script_with_requires(
+            """project_urls={
+                'Link One': 'https://example.com/one/',
+                'Link Two': 'https://example.com/two/',
+                },"""
+        )
+        environ = os.environ.copy().update(
+            HOME=env.paths['home'],
+        )
+        environment.run_setup_py(
+            cmd=['egg_info'],
+            pypath=os.pathsep.join([env.paths['lib'], str(tmpdir_cwd)]),
+            data_stream=1,
+            env=environ,
+        )
+        egg_info_dir = os.path.join('.', 'foo.egg-info')
+        with open(os.path.join(egg_info_dir, 'PKG-INFO'), encoding="utf-8") as fp:
+            pkg_info_lines = fp.read().split('\n')
+        expected_line = 'Project-URL: Link One, https://example.com/one/'
+        assert expected_line in pkg_info_lines
+        expected_line = 'Project-URL: Link Two, https://example.com/two/'
+        assert expected_line in pkg_info_lines
+        assert self._extract_mv_version(pkg_info_lines) >= (1, 2)
+
+    def test_license(self, tmpdir_cwd, env):
+        """Test single line license."""
+        self._setup_script_with_requires("license='MIT',")
+        environment.run_setup_py(
+            cmd=['egg_info'],
+            pypath=os.pathsep.join([env.paths['lib'], str(tmpdir_cwd)]),
+            data_stream=1,
+        )
+        egg_info_dir = os.path.join('.', 'foo.egg-info')
+        with open(os.path.join(egg_info_dir, 'PKG-INFO'), encoding="utf-8") as fp:
+            pkg_info_lines = fp.read().split('\n')
+        assert 'License: MIT' in pkg_info_lines
+
+    def test_license_escape(self, tmpdir_cwd, env):
+        """Test license is escaped correctly if longer than one line."""
+        self._setup_script_with_requires(
+            "license='This is a long license text \\nover multiple lines',"
+        )
+        environment.run_setup_py(
+            cmd=['egg_info'],
+            pypath=os.pathsep.join([env.paths['lib'], str(tmpdir_cwd)]),
+            data_stream=1,
+        )
+        egg_info_dir = os.path.join('.', 'foo.egg-info')
+        with open(os.path.join(egg_info_dir, 'PKG-INFO'), encoding="utf-8") as fp:
+            pkg_info_lines = fp.read().split('\n')
+
+        assert 'License: This is a long license text ' in pkg_info_lines
+        assert '        over multiple lines' in pkg_info_lines
+        assert 'text \n        over multiple' in '\n'.join(pkg_info_lines)
+
+    def test_python_requires_egg_info(self, tmpdir_cwd, env):
+        self._setup_script_with_requires("""python_requires='>=2.7.12',""")
+        environ = os.environ.copy().update(
+            HOME=env.paths['home'],
+        )
+        environment.run_setup_py(
+            cmd=['egg_info'],
+            pypath=os.pathsep.join([env.paths['lib'], str(tmpdir_cwd)]),
+            data_stream=1,
+            env=environ,
+        )
+        egg_info_dir = os.path.join('.', 'foo.egg-info')
+        with open(os.path.join(egg_info_dir, 'PKG-INFO'), encoding="utf-8") as fp:
+            pkg_info_lines = fp.read().split('\n')
+        assert 'Requires-Python: >=2.7.12' in pkg_info_lines
+        assert self._extract_mv_version(pkg_info_lines) >= (1, 2)
+
+    def test_manifest_maker_warning_suppression(self):
+        fixtures = [
+            "standard file not found: should have one of foo.py, bar.py",
+            "standard file 'setup.py' not found",
+        ]
+
+        for msg in fixtures:
+            assert manifest_maker._should_suppress_warning(msg)
+
+    def test_egg_info_includes_setup_py(self, tmpdir_cwd):
+        self._create_project()
+        dist = Distribution({"name": "foo", "version": "0.0.1"})
+        dist.script_name = "non_setup.py"
+        egg_info_instance = egg_info(dist)
+        egg_info_instance.finalize_options()
+        egg_info_instance.run()
+
+        assert 'setup.py' in egg_info_instance.filelist.files
+
+        with open(egg_info_instance.egg_info + "/SOURCES.txt", encoding="utf-8") as f:
+            sources = f.read().split('\n')
+            assert 'setup.py' in sources
+
+    def _run_egg_info_command(self, tmpdir_cwd, env, cmd=None, output=None):
+        environ = os.environ.copy().update(
+            HOME=env.paths['home'],
+        )
+        if cmd is None:
+            cmd = [
+                'egg_info',
+            ]
+        code, data = environment.run_setup_py(
+            cmd=cmd,
+            pypath=os.pathsep.join([env.paths['lib'], str(tmpdir_cwd)]),
+            data_stream=1,
+            env=environ,
+        )
+        assert not code, data
+
+        if output:
+            assert output in data
+
+    def test_egg_info_tag_only_once(self, tmpdir_cwd, env):
+        self._create_project()
+        path.build({
+            'setup.cfg': DALS(
+                """
+                              [egg_info]
+                              tag_build = dev
+                              tag_date = 0
+                              tag_svn_revision = 0
+                              """
+            ),
+        })
+        self._run_egg_info_command(tmpdir_cwd, env)
+        egg_info_dir = os.path.join('.', 'foo.egg-info')
+        with open(os.path.join(egg_info_dir, 'PKG-INFO'), encoding="utf-8") as fp:
+            pkg_info_lines = fp.read().split('\n')
+        assert 'Version: 0.0.0.dev0' in pkg_info_lines
+
+
+class TestWriteEntries:
+    def test_invalid_entry_point(self, tmpdir_cwd, env):
+        dist = Distribution({"name": "foo", "version": "0.0.1"})
+        dist.entry_points = {"foo": "foo = invalid-identifier:foo"}
+        cmd = dist.get_command_obj("egg_info")
+        expected_msg = r"(Invalid object reference|Problems to parse)"
+        with pytest.raises((errors.OptionError, ValueError), match=expected_msg) as ex:
+            write_entries(cmd, "entry_points", "entry_points.txt")
+            assert "ensure entry-point follows the spec" in ex.value.args[0]
+            assert "invalid-identifier" in str(ex.value)
+
+    def test_valid_entry_point(self, tmpdir_cwd, env):
+        dist = Distribution({"name": "foo", "version": "0.0.1"})
+        dist.entry_points = {
+            "abc": "foo = bar:baz",
+            "def": ["faa = bor:boz"],
+        }
+        cmd = dist.get_command_obj("egg_info")
+        write_entries(cmd, "entry_points", "entry_points.txt")
+        content = Path("entry_points.txt").read_text(encoding="utf-8")
+        assert "[abc]\nfoo = bar:baz\n" in content
+        assert "[def]\nfaa = bor:boz\n" in content
diff --git a/setuptools/tests/test_extern.py b/setuptools/tests/test_extern.py
new file mode 100644
index 0000000000..d7eb3c62c1
--- /dev/null
+++ b/setuptools/tests/test_extern.py
@@ -0,0 +1,15 @@
+import importlib
+import pickle
+
+import packaging
+
+from setuptools import Distribution
+
+
+def test_reimport_extern():
+    packaging2 = importlib.import_module(packaging.__name__)
+    assert packaging is packaging2
+
+
+def test_distribution_picklable():
+    pickle.loads(pickle.dumps(Distribution()))
diff --git a/setuptools/tests/test_find_packages.py b/setuptools/tests/test_find_packages.py
new file mode 100644
index 0000000000..9fd9f8f663
--- /dev/null
+++ b/setuptools/tests/test_find_packages.py
@@ -0,0 +1,218 @@
+"""Tests for automatic package discovery"""
+
+import os
+import shutil
+import tempfile
+
+import pytest
+
+from setuptools import find_namespace_packages, find_packages
+from setuptools.discovery import FlatLayoutPackageFinder
+
+from .compat.py39 import os_helper
+
+
+class TestFindPackages:
+    def setup_method(self, method):
+        self.dist_dir = tempfile.mkdtemp()
+        self._make_pkg_structure()
+
+    def teardown_method(self, method):
+        shutil.rmtree(self.dist_dir)
+
+    def _make_pkg_structure(self):
+        """Make basic package structure.
+
+        dist/
+            docs/
+                conf.py
+            pkg/
+                __pycache__/
+                nspkg/
+                    mod.py
+                subpkg/
+                    assets/
+                        asset
+                    __init__.py
+            setup.py
+
+        """
+        self.docs_dir = self._mkdir('docs', self.dist_dir)
+        self._touch('conf.py', self.docs_dir)
+        self.pkg_dir = self._mkdir('pkg', self.dist_dir)
+        self._mkdir('__pycache__', self.pkg_dir)
+        self.ns_pkg_dir = self._mkdir('nspkg', self.pkg_dir)
+        self._touch('mod.py', self.ns_pkg_dir)
+        self.sub_pkg_dir = self._mkdir('subpkg', self.pkg_dir)
+        self.asset_dir = self._mkdir('assets', self.sub_pkg_dir)
+        self._touch('asset', self.asset_dir)
+        self._touch('__init__.py', self.sub_pkg_dir)
+        self._touch('setup.py', self.dist_dir)
+
+    def _mkdir(self, path, parent_dir=None):
+        if parent_dir:
+            path = os.path.join(parent_dir, path)
+        os.mkdir(path)
+        return path
+
+    def _touch(self, path, dir_=None):
+        if dir_:
+            path = os.path.join(dir_, path)
+        open(path, 'wb').close()
+        return path
+
+    def test_regular_package(self):
+        self._touch('__init__.py', self.pkg_dir)
+        packages = find_packages(self.dist_dir)
+        assert packages == ['pkg', 'pkg.subpkg']
+
+    def test_exclude(self):
+        self._touch('__init__.py', self.pkg_dir)
+        packages = find_packages(self.dist_dir, exclude=('pkg.*',))
+        assert packages == ['pkg']
+
+    def test_exclude_recursive(self):
+        """
+        Excluding a parent package should not exclude child packages as well.
+        """
+        self._touch('__init__.py', self.pkg_dir)
+        self._touch('__init__.py', self.sub_pkg_dir)
+        packages = find_packages(self.dist_dir, exclude=('pkg',))
+        assert packages == ['pkg.subpkg']
+
+    def test_include_excludes_other(self):
+        """
+        If include is specified, other packages should be excluded.
+        """
+        self._touch('__init__.py', self.pkg_dir)
+        alt_dir = self._mkdir('other_pkg', self.dist_dir)
+        self._touch('__init__.py', alt_dir)
+        packages = find_packages(self.dist_dir, include=['other_pkg'])
+        assert packages == ['other_pkg']
+
+    def test_dir_with_dot_is_skipped(self):
+        shutil.rmtree(os.path.join(self.dist_dir, 'pkg/subpkg/assets'))
+        data_dir = self._mkdir('some.data', self.pkg_dir)
+        self._touch('__init__.py', data_dir)
+        self._touch('file.dat', data_dir)
+        packages = find_packages(self.dist_dir)
+        assert 'pkg.some.data' not in packages
+
+    def test_dir_with_packages_in_subdir_is_excluded(self):
+        """
+        Ensure that a package in a non-package such as build/pkg/__init__.py
+        is excluded.
+        """
+        build_dir = self._mkdir('build', self.dist_dir)
+        build_pkg_dir = self._mkdir('pkg', build_dir)
+        self._touch('__init__.py', build_pkg_dir)
+        packages = find_packages(self.dist_dir)
+        assert 'build.pkg' not in packages
+
+    @pytest.mark.skipif(not os_helper.can_symlink(), reason='Symlink support required')
+    def test_symlinked_packages_are_included(self):
+        """
+        A symbolically-linked directory should be treated like any other
+        directory when matched as a package.
+
+        Create a link from lpkg -> pkg.
+        """
+        self._touch('__init__.py', self.pkg_dir)
+        linked_pkg = os.path.join(self.dist_dir, 'lpkg')
+        os.symlink('pkg', linked_pkg)
+        assert os.path.isdir(linked_pkg)
+        packages = find_packages(self.dist_dir)
+        assert 'lpkg' in packages
+
+    def _assert_packages(self, actual, expected):
+        assert set(actual) == set(expected)
+
+    def test_pep420_ns_package(self):
+        packages = find_namespace_packages(
+            self.dist_dir, include=['pkg*'], exclude=['pkg.subpkg.assets']
+        )
+        self._assert_packages(packages, ['pkg', 'pkg.nspkg', 'pkg.subpkg'])
+
+    def test_pep420_ns_package_no_includes(self):
+        packages = find_namespace_packages(self.dist_dir, exclude=['pkg.subpkg.assets'])
+        self._assert_packages(packages, ['docs', 'pkg', 'pkg.nspkg', 'pkg.subpkg'])
+
+    def test_pep420_ns_package_no_includes_or_excludes(self):
+        packages = find_namespace_packages(self.dist_dir)
+        expected = ['docs', 'pkg', 'pkg.nspkg', 'pkg.subpkg', 'pkg.subpkg.assets']
+        self._assert_packages(packages, expected)
+
+    def test_regular_package_with_nested_pep420_ns_packages(self):
+        self._touch('__init__.py', self.pkg_dir)
+        packages = find_namespace_packages(
+            self.dist_dir, exclude=['docs', 'pkg.subpkg.assets']
+        )
+        self._assert_packages(packages, ['pkg', 'pkg.nspkg', 'pkg.subpkg'])
+
+    def test_pep420_ns_package_no_non_package_dirs(self):
+        shutil.rmtree(self.docs_dir)
+        shutil.rmtree(os.path.join(self.dist_dir, 'pkg/subpkg/assets'))
+        packages = find_namespace_packages(self.dist_dir)
+        self._assert_packages(packages, ['pkg', 'pkg.nspkg', 'pkg.subpkg'])
+
+
+class TestFlatLayoutPackageFinder:
+    EXAMPLES = {
+        "hidden-folders": (
+            [".pkg/__init__.py", "pkg/__init__.py", "pkg/nested/file.txt"],
+            ["pkg", "pkg.nested"],
+        ),
+        "private-packages": (
+            ["_pkg/__init__.py", "pkg/_private/__init__.py"],
+            ["pkg", "pkg._private"],
+        ),
+        "invalid-name": (
+            ["invalid-pkg/__init__.py", "other.pkg/__init__.py", "yet,another/file.py"],
+            [],
+        ),
+        "docs": (["pkg/__init__.py", "docs/conf.py", "docs/readme.rst"], ["pkg"]),
+        "tests": (
+            ["pkg/__init__.py", "tests/test_pkg.py", "tests/__init__.py"],
+            ["pkg"],
+        ),
+        "examples": (
+            [
+                "pkg/__init__.py",
+                "examples/__init__.py",
+                "examples/file.py",
+                "example/other_file.py",
+                # Sub-packages should always be fine
+                "pkg/example/__init__.py",
+                "pkg/examples/__init__.py",
+            ],
+            ["pkg", "pkg.examples", "pkg.example"],
+        ),
+        "tool-specific": (
+            [
+                "htmlcov/index.html",
+                "pkg/__init__.py",
+                "tasks/__init__.py",
+                "tasks/subpackage/__init__.py",
+                "fabfile/__init__.py",
+                "fabfile/subpackage/__init__.py",
+                # Sub-packages should always be fine
+                "pkg/tasks/__init__.py",
+                "pkg/fabfile/__init__.py",
+            ],
+            ["pkg", "pkg.tasks", "pkg.fabfile"],
+        ),
+    }
+
+    @pytest.mark.parametrize("example", EXAMPLES.keys())
+    def test_unwanted_directories_not_included(self, tmp_path, example):
+        files, expected_packages = self.EXAMPLES[example]
+        ensure_files(tmp_path, files)
+        found_packages = FlatLayoutPackageFinder.find(str(tmp_path))
+        assert set(found_packages) == set(expected_packages)
+
+
+def ensure_files(root_path, files):
+    for file in files:
+        path = root_path / file
+        path.parent.mkdir(parents=True, exist_ok=True)
+        path.touch()
diff --git a/setuptools/tests/test_find_py_modules.py b/setuptools/tests/test_find_py_modules.py
new file mode 100644
index 0000000000..8034b54429
--- /dev/null
+++ b/setuptools/tests/test_find_py_modules.py
@@ -0,0 +1,73 @@
+"""Tests for automatic discovery of modules"""
+
+import os
+
+import pytest
+
+from setuptools.discovery import FlatLayoutModuleFinder, ModuleFinder
+
+from .compat.py39 import os_helper
+from .test_find_packages import ensure_files
+
+
+class TestModuleFinder:
+    def find(self, path, *args, **kwargs):
+        return set(ModuleFinder.find(str(path), *args, **kwargs))
+
+    EXAMPLES = {
+        # circumstance: (files, kwargs, expected_modules)
+        "simple_folder": (
+            ["file.py", "other.py"],
+            {},  # kwargs
+            ["file", "other"],
+        ),
+        "exclude": (
+            ["file.py", "other.py"],
+            {"exclude": ["f*"]},
+            ["other"],
+        ),
+        "include": (
+            ["file.py", "fole.py", "other.py"],
+            {"include": ["f*"], "exclude": ["fo*"]},
+            ["file"],
+        ),
+        "invalid-name": (["my-file.py", "other.file.py"], {}, []),
+    }
+
+    @pytest.mark.parametrize("example", EXAMPLES.keys())
+    def test_finder(self, tmp_path, example):
+        files, kwargs, expected_modules = self.EXAMPLES[example]
+        ensure_files(tmp_path, files)
+        assert self.find(tmp_path, **kwargs) == set(expected_modules)
+
+    @pytest.mark.skipif(not os_helper.can_symlink(), reason='Symlink support required')
+    def test_symlinked_packages_are_included(self, tmp_path):
+        src = "_myfiles/file.py"
+        ensure_files(tmp_path, [src])
+        os.symlink(tmp_path / src, tmp_path / "link.py")
+        assert self.find(tmp_path) == {"link"}
+
+
+class TestFlatLayoutModuleFinder:
+    def find(self, path, *args, **kwargs):
+        return set(FlatLayoutModuleFinder.find(str(path)))
+
+    EXAMPLES = {
+        # circumstance: (files, expected_modules)
+        "hidden-files": ([".module.py"], []),
+        "private-modules": (["_module.py"], []),
+        "common-names": (
+            ["setup.py", "conftest.py", "test.py", "tests.py", "example.py", "mod.py"],
+            ["mod"],
+        ),
+        "tool-specific": (
+            ["tasks.py", "fabfile.py", "noxfile.py", "dodo.py", "manage.py", "mod.py"],
+            ["mod"],
+        ),
+    }
+
+    @pytest.mark.parametrize("example", EXAMPLES.keys())
+    def test_unwanted_files_not_included(self, tmp_path, example):
+        files, expected_modules = self.EXAMPLES[example]
+        ensure_files(tmp_path, files)
+        assert self.find(tmp_path) == set(expected_modules)
diff --git a/setuptools/tests/test_glob.py b/setuptools/tests/test_glob.py
new file mode 100644
index 0000000000..8d225a4461
--- /dev/null
+++ b/setuptools/tests/test_glob.py
@@ -0,0 +1,45 @@
+import pytest
+from jaraco import path
+
+from setuptools.glob import glob
+
+
+@pytest.mark.parametrize(
+    ('tree', 'pattern', 'matches'),
+    (
+        ('', b'', []),
+        ('', '', []),
+        (
+            """
+     appveyor.yml
+     CHANGES.rst
+     LICENSE
+     MANIFEST.in
+     pyproject.toml
+     README.rst
+     setup.cfg
+     setup.py
+     """,
+            '*.rst',
+            ('CHANGES.rst', 'README.rst'),
+        ),
+        (
+            """
+     appveyor.yml
+     CHANGES.rst
+     LICENSE
+     MANIFEST.in
+     pyproject.toml
+     README.rst
+     setup.cfg
+     setup.py
+     """,
+            b'*.rst',
+            (b'CHANGES.rst', b'README.rst'),
+        ),
+    ),
+)
+def test_glob(monkeypatch, tmpdir, tree, pattern, matches):
+    monkeypatch.chdir(tmpdir)
+    path.build({name: '' for name in tree.split()})
+    assert list(sorted(glob(pattern))) == list(sorted(matches))
diff --git a/setuptools/tests/test_install_scripts.py b/setuptools/tests/test_install_scripts.py
new file mode 100644
index 0000000000..e62a6b7f31
--- /dev/null
+++ b/setuptools/tests/test_install_scripts.py
@@ -0,0 +1,89 @@
+"""install_scripts tests"""
+
+import sys
+
+import pytest
+
+from setuptools.command.install_scripts import install_scripts
+from setuptools.dist import Distribution
+
+from . import contexts
+
+
+class TestInstallScripts:
+    settings = dict(
+        name='foo',
+        entry_points={'console_scripts': ['foo=foo:foo']},
+        version='0.0',
+    )
+    unix_exe = '/usr/dummy-test-path/local/bin/python'
+    unix_spaces_exe = '/usr/bin/env dummy-test-python'
+    win32_exe = 'C:\\Dummy Test Path\\Program Files\\Python 3.6\\python.exe'
+
+    def _run_install_scripts(self, install_dir, executable=None):
+        dist = Distribution(self.settings)
+        dist.script_name = 'setup.py'
+        cmd = install_scripts(dist)
+        cmd.install_dir = install_dir
+        if executable is not None:
+            bs = cmd.get_finalized_command('build_scripts')
+            bs.executable = executable
+        cmd.ensure_finalized()
+        with contexts.quiet():
+            cmd.run()
+
+    @pytest.mark.skipif(sys.platform == 'win32', reason='non-Windows only')
+    def test_sys_executable_escaping_unix(self, tmpdir, monkeypatch):
+        """
+        Ensure that shebang is not quoted on Unix when getting the Python exe
+        from sys.executable.
+        """
+        expected = f'#!{self.unix_exe}\n'
+        monkeypatch.setattr('sys.executable', self.unix_exe)
+        with tmpdir.as_cwd():
+            self._run_install_scripts(str(tmpdir))
+            with open(str(tmpdir.join('foo')), 'r', encoding="utf-8") as f:
+                actual = f.readline()
+        assert actual == expected
+
+    @pytest.mark.skipif(sys.platform != 'win32', reason='Windows only')
+    def test_sys_executable_escaping_win32(self, tmpdir, monkeypatch):
+        """
+        Ensure that shebang is quoted on Windows when getting the Python exe
+        from sys.executable and it contains a space.
+        """
+        expected = f'#!"{self.win32_exe}"\n'
+        monkeypatch.setattr('sys.executable', self.win32_exe)
+        with tmpdir.as_cwd():
+            self._run_install_scripts(str(tmpdir))
+            with open(str(tmpdir.join('foo-script.py')), 'r', encoding="utf-8") as f:
+                actual = f.readline()
+        assert actual == expected
+
+    @pytest.mark.skipif(sys.platform == 'win32', reason='non-Windows only')
+    def test_executable_with_spaces_escaping_unix(self, tmpdir):
+        """
+        Ensure that shebang on Unix is not quoted, even when
+        a value with spaces
+        is specified using --executable.
+        """
+        expected = f'#!{self.unix_spaces_exe}\n'
+        with tmpdir.as_cwd():
+            self._run_install_scripts(str(tmpdir), self.unix_spaces_exe)
+            with open(str(tmpdir.join('foo')), 'r', encoding="utf-8") as f:
+                actual = f.readline()
+        assert actual == expected
+
+    @pytest.mark.skipif(sys.platform != 'win32', reason='Windows only')
+    def test_executable_arg_escaping_win32(self, tmpdir):
+        """
+        Ensure that shebang on Windows is quoted when
+        getting a path with spaces
+        from --executable, that is itself properly quoted.
+        """
+        expected = f'#!"{self.win32_exe}"\n'
+        with tmpdir.as_cwd():
+            self._run_install_scripts(str(tmpdir), '"' + self.win32_exe + '"')
+            with open(str(tmpdir.join('foo-script.py')), 'r', encoding="utf-8") as f:
+                actual = f.readline()
+        assert actual == expected
diff --git a/setuptools/tests/test_logging.py b/setuptools/tests/test_logging.py
new file mode 100644
index 0000000000..ea58001e93
--- /dev/null
+++ b/setuptools/tests/test_logging.py
@@ -0,0 +1,76 @@
+import functools
+import inspect
+import logging
+import sys
+
+import pytest
+
+IS_PYPY = '__pypy__' in sys.builtin_module_names
+
+
+setup_py = """\
+from setuptools import setup
+
+setup(
+    name="test_logging",
+    version="0.0"
+)
+"""
+
+
+@pytest.mark.parametrize(
+    ('flag', 'expected_level'), [("--dry-run", "INFO"), ("--verbose", "DEBUG")]
+)
+def test_verbosity_level(tmp_path, monkeypatch, flag, expected_level):
+    """Make sure the correct verbosity level is set (issue #3038)"""
+    import setuptools  # noqa: F401  # import setuptools to monkeypatch distutils
+
+    import distutils  # <- load distutils after all the patches take place
+
+    logger = logging.Logger(__name__)
+    monkeypatch.setattr(logging, "root", logger)
+    unset_log_level = logger.getEffectiveLevel()
+    assert logging.getLevelName(unset_log_level) == "NOTSET"
+
+    setup_script = tmp_path / "setup.py"
+    setup_script.write_text(setup_py, encoding="utf-8")
+    dist = distutils.core.run_setup(setup_script, stop_after="init")
+    dist.script_args = [flag, "sdist"]
+    dist.parse_command_line()  # <- where the log level is set
+    log_level = logger.getEffectiveLevel()
+    log_level_name = logging.getLevelName(log_level)
+    assert log_level_name == expected_level
+
+
+def flaky_on_pypy(func):
+    @functools.wraps(func)
+    def _func():
+        try:
+            func()
+        except AssertionError:  # pragma: no cover
+            if IS_PYPY:
+                msg = "Flaky monkeypatch on PyPy (#4124)"
+                pytest.xfail(f"{msg}. Original discussion in #3707, #3709.")
+            raise
+
+    return _func
+
+
+@flaky_on_pypy
+def test_patching_does_not_cause_problems():
+    # Ensure `dist.log` is only patched if necessary
+
+    import _distutils_hack
+
+    import setuptools.logging
+
+    from distutils import dist
+
+    setuptools.logging.configure()
+
+    if _distutils_hack.enabled():
+        # Modern logging infra, no problematic patching.
+        assert dist.__file__ is None or "setuptools" in dist.__file__
+        assert isinstance(dist.log, logging.Logger)
+    else:
+        assert inspect.ismodule(dist.log)
diff --git a/setuptools/tests/test_manifest.py b/setuptools/tests/test_manifest.py
new file mode 100644
index 0000000000..903a528db0
--- /dev/null
+++ b/setuptools/tests/test_manifest.py
@@ -0,0 +1,622 @@
+"""sdist tests"""
+
+from __future__ import annotations
+
+import contextlib
+import io
+import itertools
+import logging
+import os
+import shutil
+import sys
+import tempfile
+
+import pytest
+
+from setuptools.command.egg_info import FileList, egg_info, translate_pattern
+from setuptools.dist import Distribution
+from setuptools.tests.textwrap import DALS
+
+from distutils import log
+from distutils.errors import DistutilsTemplateError
+
+IS_PYPY = '__pypy__' in sys.builtin_module_names
+
+
+def make_local_path(s):
+    """Converts '/' in a string to os.sep"""
+    return s.replace('/', os.sep)
+
+
+SETUP_ATTRS = {
+    'name': 'app',
+    'version': '0.0',
+    'packages': ['app'],
+}
+
+SETUP_PY = f"""\
+from setuptools import setup
+
+setup(**{SETUP_ATTRS!r})
+"""
+
+
+@contextlib.contextmanager
+def quiet():
+    old_stdout, old_stderr = sys.stdout, sys.stderr
+    sys.stdout, sys.stderr = io.StringIO(), io.StringIO()
+    try:
+        yield
+    finally:
+        sys.stdout, sys.stderr = old_stdout, old_stderr
+
+
+def touch(filename):
+    open(filename, 'wb').close()
+
+
+# The set of files always in the manifest, including all files in the
+# .egg-info directory
+default_files = frozenset(
+    map(
+        make_local_path,
+        [
+            'README.rst',
+            'MANIFEST.in',
+            'setup.py',
+            'app.egg-info/PKG-INFO',
+            'app.egg-info/SOURCES.txt',
+            'app.egg-info/dependency_links.txt',
+            'app.egg-info/top_level.txt',
+            'app/__init__.py',
+        ],
+    )
+)
+
+
+translate_specs: list[tuple[str, list[str], list[str]]] = [
+    ('foo', ['foo'], ['bar', 'foobar']),
+    ('foo/bar', ['foo/bar'], ['foo/bar/baz', './foo/bar', 'foo']),
+    # Glob matching
+    ('*.txt', ['foo.txt', 'bar.txt'], ['foo/foo.txt']),
+    ('dir/*.txt', ['dir/foo.txt', 'dir/bar.txt', 'dir/.txt'], ['notdir/foo.txt']),
+    ('*/*.py', ['bin/start.py'], []),
+    ('docs/page-?.txt', ['docs/page-9.txt'], ['docs/page-10.txt']),
+    # Globstars change what they mean depending upon where they are
+    (
+        'foo/**/bar',
+        ['foo/bing/bar', 'foo/bing/bang/bar', 'foo/bar'],
+        ['foo/abar'],
+    ),
+    (
+        'foo/**',
+        ['foo/bar/bing.py', 'foo/x'],
+        ['/foo/x'],
+    ),
+    (
+        '**',
+        ['x', 'abc/xyz', '@nything'],
+        [],
+    ),
+    # Character classes
+    (
+        'pre[one]post',
+        ['preopost', 'prenpost', 'preepost'],
+        ['prepost', 'preonepost'],
+    ),
+    (
+        'hello[!one]world',
+        ['helloxworld', 'helloyworld'],
+        ['hellooworld', 'helloworld', 'hellooneworld'],
+    ),
+    (
+        '[]one].txt',
+        ['o.txt', '].txt', 'e.txt'],
+        ['one].txt'],
+    ),
+    (
+        'foo[!]one]bar',
+        ['fooybar'],
+        ['foo]bar', 'fooobar', 'fooebar'],
+    ),
+]
+"""
+A spec of inputs for 'translate_pattern' and matches and mismatches
+for that input.
+"""
+
+match_params = itertools.chain.from_iterable(
+    zip(itertools.repeat(pattern), matches)
+    for pattern, matches, mismatches in translate_specs
+)
+
+
+@pytest.fixture(params=match_params)
+def pattern_match(request):
+    return map(make_local_path, request.param)
+
+
+mismatch_params = itertools.chain.from_iterable(
+    zip(itertools.repeat(pattern), mismatches)
+    for pattern, matches, mismatches in translate_specs
+)
+
+
+@pytest.fixture(params=mismatch_params)
+def pattern_mismatch(request):
+    return map(make_local_path, request.param)
+
+
+def test_translated_pattern_match(pattern_match):
+    pattern, target = pattern_match
+    assert translate_pattern(pattern).match(target)
+
+
+def test_translated_pattern_mismatch(pattern_mismatch):
+    pattern, target = pattern_mismatch
+    assert not translate_pattern(pattern).match(target)
+
+
+class TempDirTestCase:
+    def setup_method(self, method):
+        self.temp_dir = tempfile.mkdtemp()
+        self.old_cwd = os.getcwd()
+        os.chdir(self.temp_dir)
+
+    def teardown_method(self, method):
+        os.chdir(self.old_cwd)
+        shutil.rmtree(self.temp_dir)
+
+
+class TestManifestTest(TempDirTestCase):
+    def setup_method(self, method):
+        super().setup_method(method)
+
+        f = open(os.path.join(self.temp_dir, 'setup.py'), 'w', encoding="utf-8")
+        f.write(SETUP_PY)
+        f.close()
+        """
+        Create a file tree like:
+        - LICENSE
+        - README.rst
+        - testing.rst
+        - .hidden.rst
+        - app/
+            - __init__.py
+            - a.txt
+            - b.txt
+            - c.rst
+            - static/
+                - app.js
+                - app.js.map
+                - app.css
+                - app.css.map
+        """
+
+        for fname in ['README.rst', '.hidden.rst', 'testing.rst', 'LICENSE']:
+            touch(os.path.join(self.temp_dir, fname))
+
+        # Set up the rest of the test package
+        test_pkg = os.path.join(self.temp_dir, 'app')
+        os.mkdir(test_pkg)
+        for fname in ['__init__.py', 'a.txt', 'b.txt', 'c.rst']:
+            touch(os.path.join(test_pkg, fname))
+
+        # Some compiled front-end assets to include
+        static = os.path.join(test_pkg, 'static')
+        os.mkdir(static)
+        for fname in ['app.js', 'app.js.map', 'app.css', 'app.css.map']:
+            touch(os.path.join(static, fname))
+
+    def make_manifest(self, contents):
+        """Write a MANIFEST.in."""
+        manifest = os.path.join(self.temp_dir, 'MANIFEST.in')
+        with open(manifest, 'w', encoding="utf-8") as f:
+            f.write(DALS(contents))
+
+    def get_files(self):
+        """Run egg_info and get all the files to include, as a set"""
+        dist = Distribution(SETUP_ATTRS)
+        dist.script_name = 'setup.py'
+        cmd = egg_info(dist)
+        cmd.ensure_finalized()
+
+        cmd.run()
+
+        return set(cmd.filelist.files)
+
+    def test_no_manifest(self):
+        """Check a missing MANIFEST.in includes only the standard files."""
+        assert (default_files - set(['MANIFEST.in'])) == self.get_files()
+
+    def test_empty_files(self):
+        """Check an empty MANIFEST.in includes only the standard files."""
+        self.make_manifest("")
+        assert default_files == self.get_files()
+
+    def test_include(self):
+        """Include extra rst files in the project root."""
+        self.make_manifest("include *.rst")
+        files = default_files | set(['testing.rst', '.hidden.rst'])
+        assert files == self.get_files()
+
+    def test_exclude(self):
+        """Include everything in app/ except the text files"""
+        ml = make_local_path
+        self.make_manifest(
+            """
+            include app/*
+            exclude app/*.txt
+            """
+        )
+        files = default_files | set([ml('app/c.rst')])
+        assert files == self.get_files()
+
+    def test_include_multiple(self):
+        """Include with multiple patterns."""
+        ml = make_local_path
+        self.make_manifest("include app/*.txt app/static/*")
+        files = default_files | set([
+            ml('app/a.txt'),
+            ml('app/b.txt'),
+            ml('app/static/app.js'),
+            ml('app/static/app.js.map'),
+            ml('app/static/app.css'),
+            ml('app/static/app.css.map'),
+        ])
+        assert files == self.get_files()
+
+    def test_graft(self):
+        """Include the whole app/static/ directory."""
+        ml = make_local_path
+        self.make_manifest("graft app/static")
+        files = default_files | set([
+            ml('app/static/app.js'),
+            ml('app/static/app.js.map'),
+            ml('app/static/app.css'),
+            ml('app/static/app.css.map'),
+        ])
+        assert files == self.get_files()
+
+    def test_graft_glob_syntax(self):
+        """Include the whole app/static/ directory."""
+        ml = make_local_path
+        self.make_manifest("graft */static")
+        files = default_files | set([
+            ml('app/static/app.js'),
+            ml('app/static/app.js.map'),
+            ml('app/static/app.css'),
+            ml('app/static/app.css.map'),
+        ])
+        assert files == self.get_files()
+
+    def test_graft_global_exclude(self):
+        """Exclude all *.map files in the project."""
+        ml = make_local_path
+        self.make_manifest(
+            """
+            graft app/static
+            global-exclude *.map
+            """
+        )
+        files = default_files | set([ml('app/static/app.js'), ml('app/static/app.css')])
+        assert files == self.get_files()
+
+    def test_global_include(self):
+        """Include all *.rst, *.js, and *.css files in the whole tree."""
+        ml = make_local_path
+        self.make_manifest(
+            """
+            global-include *.rst *.js *.css
+            """
+        )
+        files = default_files | set([
+            '.hidden.rst',
+            'testing.rst',
+            ml('app/c.rst'),
+            ml('app/static/app.js'),
+            ml('app/static/app.css'),
+        ])
+        assert files == self.get_files()
+
+    def test_graft_prune(self):
+        """Include all files in app/, except for the whole app/static/ dir."""
+        ml = make_local_path
+        self.make_manifest(
+            """
+            graft app
+            prune app/static
+            """
+        )
+        files = default_files | set([ml('app/a.txt'), ml('app/b.txt'), ml('app/c.rst')])
+        assert files == self.get_files()
+
+
+class TestFileListTest(TempDirTestCase):
+    """
+    A copy of the relevant bits of distutils/tests/test_filelist.py,
+    to ensure setuptools' version of FileList keeps parity with distutils.
+    """
+
+    @pytest.fixture(autouse=os.getenv("SETUPTOOLS_USE_DISTUTILS") == "stdlib")
+    def _compat_record_logs(self, monkeypatch, caplog):
+        """Account for stdlib compatibility"""
+
+        def _log(_logger, level, msg, args):
+            exc = sys.exc_info()
+            rec = logging.LogRecord("distutils", level, "", 0, msg, args, exc)
+            caplog.records.append(rec)
+
+        monkeypatch.setattr(log.Log, "_log", _log)
+
+    def get_records(self, caplog, *levels):
+        return [r for r in caplog.records if r.levelno in levels]
+
+    def assertNoWarnings(self, caplog):
+        assert self.get_records(caplog, log.WARN) == []
+        caplog.clear()
+
+    def assertWarnings(self, caplog):
+        if IS_PYPY and not caplog.records:
+            pytest.xfail("caplog checks may not work well in PyPy")
+        else:
+            assert len(self.get_records(caplog, log.WARN)) > 0
+            caplog.clear()
+
+    def make_files(self, files):
+        for file in files:
+            file = os.path.join(self.temp_dir, file)
+            dirname, _basename = os.path.split(file)
+            os.makedirs(dirname, exist_ok=True)
+            touch(file)
+
+    def test_process_template_line(self):
+        # testing  all MANIFEST.in template patterns
+        file_list = FileList()
+        ml = make_local_path
+
+        # simulated file list
+        self.make_files([
+            'foo.tmp',
+            'ok',
+            'xo',
+            'four.txt',
+            'buildout.cfg',
+            # filelist does not filter out VCS directories,
+            # it's sdist that does
+            ml('.hg/last-message.txt'),
+            ml('global/one.txt'),
+            ml('global/two.txt'),
+            ml('global/files.x'),
+            ml('global/here.tmp'),
+            ml('f/o/f.oo'),
+            ml('dir/graft-one'),
+            ml('dir/dir2/graft2'),
+            ml('dir3/ok'),
+            ml('dir3/sub/ok.txt'),
+        ])
+
+        MANIFEST_IN = DALS(
+            """\
+        include ok
+        include xo
+        exclude xo
+        include foo.tmp
+        include buildout.cfg
+        global-include *.x
+        global-include *.txt
+        global-exclude *.tmp
+        recursive-include f *.oo
+        recursive-exclude global *.x
+        graft dir
+        prune dir3
+        """
+        )
+
+        for line in MANIFEST_IN.split('\n'):
+            if not line:
+                continue
+            file_list.process_template_line(line)
+
+        wanted = [
+            'buildout.cfg',
+            'four.txt',
+            'ok',
+            ml('.hg/last-message.txt'),
+            ml('dir/graft-one'),
+            ml('dir/dir2/graft2'),
+            ml('f/o/f.oo'),
+            ml('global/one.txt'),
+            ml('global/two.txt'),
+        ]
+
+        file_list.sort()
+        assert file_list.files == wanted
+
+    def test_exclude_pattern(self):
+        # return False if no match
+        file_list = FileList()
+        assert not file_list.exclude_pattern('*.py')
+
+        # return True if files match
+        file_list = FileList()
+        file_list.files = ['a.py', 'b.py']
+        assert file_list.exclude_pattern('*.py')
+
+        # test excludes
+        file_list = FileList()
+        file_list.files = ['a.py', 'a.txt']
+        file_list.exclude_pattern('*.py')
+        file_list.sort()
+        assert file_list.files == ['a.txt']
+
+    def test_include_pattern(self):
+        # return False if no match
+        file_list = FileList()
+        self.make_files([])
+        assert not file_list.include_pattern('*.py')
+
+        # return True if files match
+        file_list = FileList()
+        self.make_files(['a.py', 'b.txt'])
+        assert file_list.include_pattern('*.py')
+
+        # test * matches all files
+        file_list = FileList()
+        self.make_files(['a.py', 'b.txt'])
+        file_list.include_pattern('*')
+        file_list.sort()
+        assert file_list.files == ['a.py', 'b.txt']
+
+    def test_process_template_line_invalid(self):
+        # invalid lines
+        file_list = FileList()
+        for action in (
+            'include',
+            'exclude',
+            'global-include',
+            'global-exclude',
+            'recursive-include',
+            'recursive-exclude',
+            'graft',
+            'prune',
+            'blarg',
+        ):
+            with pytest.raises(DistutilsTemplateError):
+                file_list.process_template_line(action)
+
+    def test_include(self, caplog):
+        caplog.set_level(logging.DEBUG)
+        ml = make_local_path
+        # include
+        file_list = FileList()
+        self.make_files(['a.py', 'b.txt', ml('d/c.py')])
+
+        file_list.process_template_line('include *.py')
+        file_list.sort()
+        assert file_list.files == ['a.py']
+        self.assertNoWarnings(caplog)
+
+        file_list.process_template_line('include *.rb')
+        file_list.sort()
+        assert file_list.files == ['a.py']
+        self.assertWarnings(caplog)
+
+    def test_exclude(self, caplog):
+        caplog.set_level(logging.DEBUG)
+        ml = make_local_path
+        # exclude
+        file_list = FileList()
+        file_list.files = ['a.py', 'b.txt', ml('d/c.py')]
+
+        file_list.process_template_line('exclude *.py')
+        file_list.sort()
+        assert file_list.files == ['b.txt', ml('d/c.py')]
+        self.assertNoWarnings(caplog)
+
+        file_list.process_template_line('exclude *.rb')
+        file_list.sort()
+        assert file_list.files == ['b.txt', ml('d/c.py')]
+        self.assertWarnings(caplog)
+
+    def test_global_include(self, caplog):
+        caplog.set_level(logging.DEBUG)
+        ml = make_local_path
+        # global-include
+        file_list = FileList()
+        self.make_files(['a.py', 'b.txt', ml('d/c.py')])
+
+        file_list.process_template_line('global-include *.py')
+        file_list.sort()
+        assert file_list.files == ['a.py', ml('d/c.py')]
+        self.assertNoWarnings(caplog)
+
+        file_list.process_template_line('global-include *.rb')
+        file_list.sort()
+        assert file_list.files == ['a.py', ml('d/c.py')]
+        self.assertWarnings(caplog)
+
+    def test_global_exclude(self, caplog):
+        caplog.set_level(logging.DEBUG)
+        ml = make_local_path
+        # global-exclude
+        file_list = FileList()
+        file_list.files = ['a.py', 'b.txt', ml('d/c.py')]
+
+        file_list.process_template_line('global-exclude *.py')
+        file_list.sort()
+        assert file_list.files == ['b.txt']
+        self.assertNoWarnings(caplog)
+
+        file_list.process_template_line('global-exclude *.rb')
+        file_list.sort()
+        assert file_list.files == ['b.txt']
+        self.assertWarnings(caplog)
+
+    def test_recursive_include(self, caplog):
+        caplog.set_level(logging.DEBUG)
+        ml = make_local_path
+        # recursive-include
+        file_list = FileList()
+        self.make_files(['a.py', ml('d/b.py'), ml('d/c.txt'), ml('d/d/e.py')])
+
+        file_list.process_template_line('recursive-include d *.py')
+        file_list.sort()
+        assert file_list.files == [ml('d/b.py'), ml('d/d/e.py')]
+        self.assertNoWarnings(caplog)
+
+        file_list.process_template_line('recursive-include e *.py')
+        file_list.sort()
+        assert file_list.files == [ml('d/b.py'), ml('d/d/e.py')]
+        self.assertWarnings(caplog)
+
+    def test_recursive_exclude(self, caplog):
+        caplog.set_level(logging.DEBUG)
+        ml = make_local_path
+        # recursive-exclude
+        file_list = FileList()
+        file_list.files = ['a.py', ml('d/b.py'), ml('d/c.txt'), ml('d/d/e.py')]
+
+        file_list.process_template_line('recursive-exclude d *.py')
+        file_list.sort()
+        assert file_list.files == ['a.py', ml('d/c.txt')]
+        self.assertNoWarnings(caplog)
+
+        file_list.process_template_line('recursive-exclude e *.py')
+        file_list.sort()
+        assert file_list.files == ['a.py', ml('d/c.txt')]
+        self.assertWarnings(caplog)
+
+    def test_graft(self, caplog):
+        caplog.set_level(logging.DEBUG)
+        ml = make_local_path
+        # graft
+        file_list = FileList()
+        self.make_files(['a.py', ml('d/b.py'), ml('d/d/e.py'), ml('f/f.py')])
+
+        file_list.process_template_line('graft d')
+        file_list.sort()
+        assert file_list.files == [ml('d/b.py'), ml('d/d/e.py')]
+        self.assertNoWarnings(caplog)
+
+        file_list.process_template_line('graft e')
+        file_list.sort()
+        assert file_list.files == [ml('d/b.py'), ml('d/d/e.py')]
+        self.assertWarnings(caplog)
+
+    def test_prune(self, caplog):
+        caplog.set_level(logging.DEBUG)
+        ml = make_local_path
+        # prune
+        file_list = FileList()
+        file_list.files = ['a.py', ml('d/b.py'), ml('d/d/e.py'), ml('f/f.py')]
+
+        file_list.process_template_line('prune d')
+        file_list.sort()
+        assert file_list.files == ['a.py', ml('f/f.py')]
+        self.assertNoWarnings(caplog)
+
+        file_list.process_template_line('prune e')
+        file_list.sort()
+        assert file_list.files == ['a.py', ml('f/f.py')]
+        self.assertWarnings(caplog)
diff --git a/setuptools/tests/test_namespaces.py b/setuptools/tests/test_namespaces.py
new file mode 100644
index 0000000000..a0f4120bf7
--- /dev/null
+++ b/setuptools/tests/test_namespaces.py
@@ -0,0 +1,138 @@
+import subprocess
+import sys
+
+from setuptools._path import paths_on_pythonpath
+
+from . import namespaces
+
+
+class TestNamespaces:
+    def test_mixed_site_and_non_site(self, tmpdir):
+        """
+        Installing two packages sharing the same namespace, one installed
+        to a site dir and the other installed just to a path on PYTHONPATH
+        should leave the namespace in tact and both packages reachable by
+        import.
+        """
+        pkg_A = namespaces.build_namespace_package(tmpdir, 'myns.pkgA')
+        pkg_B = namespaces.build_namespace_package(tmpdir, 'myns.pkgB')
+        site_packages = tmpdir / 'site-packages'
+        path_packages = tmpdir / 'path-packages'
+        targets = site_packages, path_packages
+        # use pip to install to the target directory
+        install_cmd = [
+            sys.executable,
+            '-m',
+            'pip.__main__',
+            'install',
+            str(pkg_A),
+            '-t',
+            str(site_packages),
+        ]
+        subprocess.check_call(install_cmd)
+        namespaces.make_site_dir(site_packages)
+        install_cmd = [
+            sys.executable,
+            '-m',
+            'pip.__main__',
+            'install',
+            str(pkg_B),
+            '-t',
+            str(path_packages),
+        ]
+        subprocess.check_call(install_cmd)
+        try_import = [
+            sys.executable,
+            '-c',
+            'import myns.pkgA; import myns.pkgB',
+        ]
+        with paths_on_pythonpath(map(str, targets)):
+            subprocess.check_call(try_import)
+
+    def test_pkg_resources_import(self, tmpdir):
+        """
+        Ensure that a namespace package doesn't break on import
+        of pkg_resources.
+        """
+        pkg = namespaces.build_namespace_package(tmpdir, 'myns.pkgA')
+        target = tmpdir / 'packages'
+        target.mkdir()
+        install_cmd = [
+            sys.executable,
+            '-m',
+            'pip',
+            'install',
+            '-t',
+            str(target),
+            str(pkg),
+        ]
+        with paths_on_pythonpath([str(target)]):
+            subprocess.check_call(install_cmd)
+        namespaces.make_site_dir(target)
+        try_import = [
+            sys.executable,
+            '-c',
+            'import pkg_resources',
+        ]
+        with paths_on_pythonpath([str(target)]):
+            subprocess.check_call(try_import)
+
+    def test_namespace_package_installed_and_cwd(self, tmpdir):
+        """
+        Installing a namespace packages but also having it in the current
+        working directory, only one version should take precedence.
+        """
+        pkg_A = namespaces.build_namespace_package(tmpdir, 'myns.pkgA')
+        target = tmpdir / 'packages'
+        # use pip to install to the target directory
+        install_cmd = [
+            sys.executable,
+            '-m',
+            'pip.__main__',
+            'install',
+            str(pkg_A),
+            '-t',
+            str(target),
+        ]
+        subprocess.check_call(install_cmd)
+        namespaces.make_site_dir(target)
+
+        # ensure that package imports and pkg_resources imports
+        pkg_resources_imp = [
+            sys.executable,
+            '-c',
+            'import pkg_resources; import myns.pkgA',
+        ]
+        with paths_on_pythonpath([str(target)]):
+            subprocess.check_call(pkg_resources_imp, cwd=str(pkg_A))
+
+    def test_packages_in_the_same_namespace_installed_and_cwd(self, tmpdir):
+        """
+        Installing one namespace package and also have another in the same
+        namespace in the current working directory, both of them must be
+        importable.
+        """
+        pkg_A = namespaces.build_namespace_package(tmpdir, 'myns.pkgA')
+        pkg_B = namespaces.build_namespace_package(tmpdir, 'myns.pkgB')
+        target = tmpdir / 'packages'
+        # use pip to install to the target directory
+        install_cmd = [
+            sys.executable,
+            '-m',
+            'pip.__main__',
+            'install',
+            str(pkg_A),
+            '-t',
+            str(target),
+        ]
+        subprocess.check_call(install_cmd)
+        namespaces.make_site_dir(target)
+
+        # ensure that all packages import and pkg_resources imports
+        pkg_resources_imp = [
+            sys.executable,
+            '-c',
+            'import pkg_resources; import myns.pkgA; import myns.pkgB',
+        ]
+        with paths_on_pythonpath([str(target)]):
+            subprocess.check_call(pkg_resources_imp, cwd=str(pkg_B))
diff --git a/setuptools/tests/test_packageindex.py b/setuptools/tests/test_packageindex.py
index 0231eda87a..2a6e5917a8 100644
--- a/setuptools/tests/test_packageindex.py
+++ b/setuptools/tests/test_packageindex.py
@@ -1,27 +1,267 @@
-"""Package Index Tests
-"""
-# More would be better!
+import http.client
+import re
+import urllib.error
+import urllib.request
+from inspect import cleandoc
+
+import pytest
 
-import os, shutil, tempfile, unittest, urllib2
-import pkg_resources
 import setuptools.package_index
 
-class TestPackageIndex(unittest.TestCase):
+import distutils.errors
+
+
+class TestPackageIndex:
+    def test_regex(self):
+        hash_url = 'http://other_url?:action=show_md5&'
+        hash_url += 'digest=0123456789abcdef0123456789abcdef'
+        doc = """
+            Name
+            (md5)
+        """.lstrip().format(**locals())
+        assert setuptools.package_index.PYPI_MD5.match(doc)
 
-    def test_bad_urls(self):
+    def test_bad_url_bad_port(self):
         index = setuptools.package_index.PackageIndex()
-        url = 'http://127.0.0.1/nonesuch/test_package_index'
-        try:
+        url = 'http://127.0.0.1:0/nonesuch/test_package_index'
+        with pytest.raises(Exception, match=re.escape(url)):
+            v = index.open_url(url)
+            assert isinstance(v, urllib.error.HTTPError)
+
+    def test_bad_url_typo(self):
+        # issue 16
+        # easy_install inquant.contentmirror.plone breaks because of a typo
+        # in its home URL
+        index = setuptools.package_index.PackageIndex(hosts=('www.example.com',))
+
+        url = 'url:%20https://svn.plone.org/svn/collective/inquant.contentmirror.plone/trunk'
+
+        with pytest.raises(Exception, match=re.escape(url)):
             v = index.open_url(url)
-        except Exception, v:
-            self.assert_(url in str(v))
-        else:
-            self.assert_(isinstance(v,urllib2.HTTPError))
+            assert isinstance(v, urllib.error.HTTPError)
+
+    def test_bad_url_bad_status_line(self):
+        index = setuptools.package_index.PackageIndex(hosts=('www.example.com',))
+
+        def _urlopen(*args):
+            raise http.client.BadStatusLine('line')
+
+        index.opener = _urlopen
+        url = 'http://example.com'
+        with pytest.raises(Exception, match=r'line'):
+            index.open_url(url)
+
+    def test_bad_url_double_scheme(self):
+        """
+        A bad URL with a double scheme should raise a DistutilsError.
+        """
+        index = setuptools.package_index.PackageIndex(hosts=('www.example.com',))
+
+        # issue 20
+        url = 'http://http://svn.pythonpaste.org/Paste/wphp/trunk'
+        try:
+            index.open_url(url)
+        except distutils.errors.DistutilsError as error:
+            msg = str(error)
+            assert (
+                'nonnumeric port' in msg
+                or 'getaddrinfo failed' in msg
+                or 'Name or service not known' in msg
+            )
+            return
+        raise RuntimeError("Did not raise")
 
     def test_url_ok(self):
-        index = setuptools.package_index.PackageIndex(
-            hosts=('www.example.com',)
-        )
+        index = setuptools.package_index.PackageIndex(hosts=('www.example.com',))
         url = 'file:///tmp/test_package_index'
-        self.assert_(index.url_ok(url, True))
+        assert index.url_ok(url, True)
+
+    def test_parse_bdist_wininst(self):
+        parse = setuptools.package_index.parse_bdist_wininst
+
+        actual = parse('reportlab-2.5.win32-py2.4.exe')
+        expected = 'reportlab-2.5', '2.4', 'win32'
+        assert actual == expected
+
+        actual = parse('reportlab-2.5.win32.exe')
+        expected = 'reportlab-2.5', None, 'win32'
+        assert actual == expected
+
+        actual = parse('reportlab-2.5.win-amd64-py2.7.exe')
+        expected = 'reportlab-2.5', '2.7', 'win-amd64'
+        assert actual == expected
+
+        actual = parse('reportlab-2.5.win-amd64.exe')
+        expected = 'reportlab-2.5', None, 'win-amd64'
+        assert actual == expected
+
+    def test__vcs_split_rev_from_url(self):
+        """
+        Test the basic usage of _vcs_split_rev_from_url
+        """
+        vsrfu = setuptools.package_index.PackageIndex._vcs_split_rev_from_url
+        url, rev = vsrfu('https://example.com/bar@2995')
+        assert url == 'https://example.com/bar'
+        assert rev == '2995'
+
+    def test_local_index(self, tmpdir):
+        """
+        local_open should be able to read an index from the file system.
+        """
+        index_file = tmpdir / 'index.html'
+        with index_file.open('w') as f:
+            f.write('
    content
    ')
+        url = 'file:' + urllib.request.pathname2url(str(tmpdir)) + '/'
+        res = setuptools.package_index.local_open(url)
+        assert 'content' in res.read()
+
+    def test_egg_fragment(self):
+        """
+        EGG fragments must comply to PEP 440
+        """
+        epoch = [
+            '',
+            '1!',
+        ]
+        releases = [
+            '0',
+            '0.0',
+            '0.0.0',
+        ]
+        pre = [
+            'a0',
+            'b0',
+            'rc0',
+        ]
+        post = ['.post0']
+        dev = [
+            '.dev0',
+        ]
+        local = [
+            ('', ''),
+            ('+ubuntu.0', '+ubuntu.0'),
+            ('+ubuntu-0', '+ubuntu.0'),
+            ('+ubuntu_0', '+ubuntu.0'),
+        ]
+        versions = [
+            [''.join([e, r, p, loc]) for loc in locs]
+            for e in epoch
+            for r in releases
+            for p in sum([pre, post, dev], [''])
+            for locs in local
+        ]
+        for v, vc in versions:
+            dists = list(
+                setuptools.package_index.distros_for_url(
+                    'http://example.com/example-foo.zip#egg=example-foo-' + v
+                )
+            )
+            assert dists[0].version == ''
+            assert dists[1].version == vc
+
+    def test_download_git_with_rev(self, tmp_path, fp):
+        url = 'git+https://github.example/group/project@master#egg=foo'
+        index = setuptools.package_index.PackageIndex()
+
+        expected_dir = tmp_path / 'project@master'
+        fp.register([
+            'git',
+            'clone',
+            '--quiet',
+            'https://github.example/group/project',
+            expected_dir,
+        ])
+        fp.register(['git', '-C', expected_dir, 'checkout', '--quiet', 'master'])
+
+        result = index.download(url, tmp_path)
+
+        assert result == str(expected_dir)
+        assert len(fp.calls) == 2
+
+    def test_download_git_no_rev(self, tmp_path, fp):
+        url = 'git+https://github.example/group/project#egg=foo'
+        index = setuptools.package_index.PackageIndex()
+
+        expected_dir = tmp_path / 'project'
+        fp.register([
+            'git',
+            'clone',
+            '--quiet',
+            'https://github.example/group/project',
+            expected_dir,
+        ])
+        index.download(url, tmp_path)
+
+    def test_download_svn(self, tmp_path):
+        url = 'svn+https://svn.example/project#egg=foo'
+        index = setuptools.package_index.PackageIndex()
+
+        msg = r".*SVN download is not supported.*"
+        with pytest.raises(distutils.errors.DistutilsError, match=msg):
+            index.download(url, tmp_path)
+
+
+class TestContentCheckers:
+    def test_md5(self):
+        checker = setuptools.package_index.HashChecker.from_url(
+            'http://foo/bar#md5=f12895fdffbd45007040d2e44df98478'
+        )
+        checker.feed('You should probably not be using MD5'.encode('ascii'))
+        assert checker.hash.hexdigest() == 'f12895fdffbd45007040d2e44df98478'
+        assert checker.is_valid()
+
+    def test_other_fragment(self):
+        "Content checks should succeed silently if no hash is present"
+        checker = setuptools.package_index.HashChecker.from_url(
+            'http://foo/bar#something%20completely%20different'
+        )
+        checker.feed('anything'.encode('ascii'))
+        assert checker.is_valid()
+
+    def test_blank_md5(self):
+        "Content checks should succeed if a hash is empty"
+        checker = setuptools.package_index.HashChecker.from_url('http://foo/bar#md5=')
+        checker.feed('anything'.encode('ascii'))
+        assert checker.is_valid()
+
+    def test_get_hash_name_md5(self):
+        checker = setuptools.package_index.HashChecker.from_url(
+            'http://foo/bar#md5=f12895fdffbd45007040d2e44df98478'
+        )
+        assert checker.hash_name == 'md5'
+
+    def test_report(self):
+        checker = setuptools.package_index.HashChecker.from_url(
+            'http://foo/bar#md5=f12895fdffbd45007040d2e44df98478'
+        )
+        rep = checker.report(lambda x: x, 'My message about %s')
+        assert rep == 'My message about md5'
+
+
+class TestPyPIConfig:
+    def test_percent_in_password(self, tmp_home_dir):
+        pypirc = tmp_home_dir / '.pypirc'
+        pypirc.write_text(
+            cleandoc(
+                """
+                [pypi]
+                repository=https://pypi.org
+                username=jaraco
+                password=pity%
+                """
+            ),
+            encoding="utf-8",
+        )
+        cfg = setuptools.package_index.PyPIConfig()
+        cred = cfg.creds_by_repository['https://pypi.org']
+        assert cred.username == 'jaraco'
+        assert cred.password == 'pity%'
+
 
+@pytest.mark.timeout(1)
+def test_REL_DoS():
+    """
+    REL should not hang on a contrived attack string.
+    """
+    setuptools.package_index.REL.search('< rel=' + ' ' * 2**12)
diff --git a/setuptools/tests/test_resources.py b/setuptools/tests/test_resources.py
deleted file mode 100644
index 03e5d0f83b..0000000000
--- a/setuptools/tests/test_resources.py
+++ /dev/null
@@ -1,533 +0,0 @@
-#!/usr/bin/python
-# -*- coding: utf-8 -*-
-# NOTE: the shebang and encoding lines are for ScriptHeaderTests; do not remove
-from unittest import TestCase, makeSuite; from pkg_resources import *
-from setuptools.command.easy_install import get_script_header, is_sh
-import os, pkg_resources, sys, StringIO
-try: frozenset
-except NameError:
-    from sets import ImmutableSet as frozenset
-
-class Metadata(EmptyProvider):
-    """Mock object to return metadata as if from an on-disk distribution"""
-
-    def __init__(self,*pairs):
-        self.metadata = dict(pairs)
-
-    def has_metadata(self,name):
-        return name in self.metadata
-
-    def get_metadata(self,name):
-        return self.metadata[name]
-
-    def get_metadata_lines(self,name):
-        return yield_lines(self.get_metadata(name))
-
-class DistroTests(TestCase):
-
-    def testCollection(self):
-        # empty path should produce no distributions
-        ad = Environment([], platform=None, python=None)
-        self.assertEqual(list(ad), [])
-        self.assertEqual(ad['FooPkg'],[])
-        ad.add(Distribution.from_filename("FooPkg-1.3_1.egg"))
-        ad.add(Distribution.from_filename("FooPkg-1.4-py2.4-win32.egg"))
-        ad.add(Distribution.from_filename("FooPkg-1.2-py2.4.egg"))
-
-        # Name is in there now
-        self.failUnless(ad['FooPkg'])
-        # But only 1 package
-        self.assertEqual(list(ad), ['foopkg'])
-
-        # Distributions sort by version
-        self.assertEqual(
-            [dist.version for dist in ad['FooPkg']], ['1.4','1.3-1','1.2']
-        )
-        # Removing a distribution leaves sequence alone
-        ad.remove(ad['FooPkg'][1])
-        self.assertEqual(
-            [dist.version for dist in ad['FooPkg']], ['1.4','1.2']
-        )
-        # And inserting adds them in order
-        ad.add(Distribution.from_filename("FooPkg-1.9.egg"))
-        self.assertEqual(
-            [dist.version for dist in ad['FooPkg']], ['1.9','1.4','1.2']
-        )
-
-        ws = WorkingSet([])
-        foo12 = Distribution.from_filename("FooPkg-1.2-py2.4.egg")
-        foo14 = Distribution.from_filename("FooPkg-1.4-py2.4-win32.egg")
-        req, = parse_requirements("FooPkg>=1.3")
-
-        # Nominal case: no distros on path, should yield all applicable
-        self.assertEqual(ad.best_match(req,ws).version, '1.9')
-        # If a matching distro is already installed, should return only that
-        ws.add(foo14); self.assertEqual(ad.best_match(req,ws).version, '1.4')
-
-        # If the first matching distro is unsuitable, it's a version conflict
-        ws = WorkingSet([]); ws.add(foo12); ws.add(foo14)
-        self.assertRaises(VersionConflict, ad.best_match, req, ws)
-
-        # If more than one match on the path, the first one takes precedence
-        ws = WorkingSet([]); ws.add(foo14); ws.add(foo12); ws.add(foo14);
-        self.assertEqual(ad.best_match(req,ws).version, '1.4')
-
-    def checkFooPkg(self,d):
-        self.assertEqual(d.project_name, "FooPkg")
-        self.assertEqual(d.key, "foopkg")
-        self.assertEqual(d.version, "1.3-1")
-        self.assertEqual(d.py_version, "2.4")
-        self.assertEqual(d.platform, "win32")
-        self.assertEqual(d.parsed_version, parse_version("1.3-1"))
-
-    def testDistroBasics(self):
-        d = Distribution(
-            "/some/path",
-            project_name="FooPkg",version="1.3-1",py_version="2.4",platform="win32"
-        )
-        self.checkFooPkg(d)
-
-        d = Distribution("/some/path")
-        self.assertEqual(d.py_version, sys.version[:3])
-        self.assertEqual(d.platform, None)
-
-    def testDistroParse(self):
-        d = Distribution.from_filename("FooPkg-1.3_1-py2.4-win32.egg")
-        self.checkFooPkg(d)
-        d = Distribution.from_filename("FooPkg-1.3_1-py2.4-win32.egg-info")
-        self.checkFooPkg(d)
-
-    def testDistroMetadata(self):
-        d = Distribution(
-            "/some/path", project_name="FooPkg", py_version="2.4", platform="win32",
-            metadata = Metadata(
-                ('PKG-INFO',"Metadata-Version: 1.0\nVersion: 1.3-1\n")
-            )
-        )
-        self.checkFooPkg(d)
-
-
-    def distRequires(self, txt):
-        return Distribution("/foo", metadata=Metadata(('depends.txt', txt)))
-
-    def checkRequires(self, dist, txt, extras=()):
-        self.assertEqual(
-            list(dist.requires(extras)),
-            list(parse_requirements(txt))
-        )
-
-    def testDistroDependsSimple(self):
-        for v in "Twisted>=1.5", "Twisted>=1.5\nZConfig>=2.0":
-            self.checkRequires(self.distRequires(v), v)
-
-
-    def testResolve(self):
-        ad = Environment([]); ws = WorkingSet([])
-        # Resolving no requirements -> nothing to install
-        self.assertEqual( list(ws.resolve([],ad)), [] )
-        # Request something not in the collection -> DistributionNotFound
-        self.assertRaises(
-            DistributionNotFound, ws.resolve, parse_requirements("Foo"), ad
-        )
-        Foo = Distribution.from_filename(
-            "/foo_dir/Foo-1.2.egg",
-            metadata=Metadata(('depends.txt', "[bar]\nBaz>=2.0"))
-        )
-        ad.add(Foo); ad.add(Distribution.from_filename("Foo-0.9.egg"))
-
-        # Request thing(s) that are available -> list to activate
-        for i in range(3):
-            targets = list(ws.resolve(parse_requirements("Foo"), ad))
-            self.assertEqual(targets, [Foo])
-            map(ws.add,targets)
-        self.assertRaises(VersionConflict, ws.resolve,
-            parse_requirements("Foo==0.9"), ad)
-        ws = WorkingSet([]) # reset
-        
-        # Request an extra that causes an unresolved dependency for "Baz"
-        self.assertRaises(
-            DistributionNotFound, ws.resolve,parse_requirements("Foo[bar]"), ad
-        )
-        Baz = Distribution.from_filename(
-            "/foo_dir/Baz-2.1.egg", metadata=Metadata(('depends.txt', "Foo"))
-        )
-        ad.add(Baz)
-
-        # Activation list now includes resolved dependency
-        self.assertEqual(
-            list(ws.resolve(parse_requirements("Foo[bar]"), ad)), [Foo,Baz]
-        )
-        # Requests for conflicting versions produce VersionConflict
-        self.assertRaises( VersionConflict,
-            ws.resolve, parse_requirements("Foo==1.2\nFoo!=1.2"), ad
-        )
-        
-    def testDistroDependsOptions(self):
-        d = self.distRequires("""
-            Twisted>=1.5
-            [docgen]
-            ZConfig>=2.0
-            docutils>=0.3
-            [fastcgi]
-            fcgiapp>=0.1""")
-        self.checkRequires(d,"Twisted>=1.5")
-        self.checkRequires(
-            d,"Twisted>=1.5 ZConfig>=2.0 docutils>=0.3".split(), ["docgen"]
-        )
-        self.checkRequires(
-            d,"Twisted>=1.5 fcgiapp>=0.1".split(), ["fastcgi"]
-        )
-        self.checkRequires(
-            d,"Twisted>=1.5 ZConfig>=2.0 docutils>=0.3 fcgiapp>=0.1".split(),
-            ["docgen","fastcgi"]
-        )
-        self.checkRequires(
-            d,"Twisted>=1.5 fcgiapp>=0.1 ZConfig>=2.0 docutils>=0.3".split(),
-            ["fastcgi", "docgen"]
-        )
-        self.assertRaises(UnknownExtra, d.requires, ["foo"])
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-class EntryPointTests(TestCase):
-
-    def assertfields(self, ep):
-        self.assertEqual(ep.name,"foo")
-        self.assertEqual(ep.module_name,"setuptools.tests.test_resources")
-        self.assertEqual(ep.attrs, ("EntryPointTests",))
-        self.assertEqual(ep.extras, ("x",))
-        self.failUnless(ep.load() is EntryPointTests)
-        self.assertEqual(
-            str(ep),
-            "foo = setuptools.tests.test_resources:EntryPointTests [x]"
-        )
-
-    def setUp(self):
-        self.dist = Distribution.from_filename(
-            "FooPkg-1.2-py2.4.egg", metadata=Metadata(('requires.txt','[x]')))
-
-    def testBasics(self):
-        ep = EntryPoint(
-            "foo", "setuptools.tests.test_resources", ["EntryPointTests"],
-            ["x"], self.dist
-        )
-        self.assertfields(ep)
-
-    def testParse(self):
-        s = "foo = setuptools.tests.test_resources:EntryPointTests [x]"
-        ep = EntryPoint.parse(s, self.dist)
-        self.assertfields(ep)
-
-        ep = EntryPoint.parse("bar baz=  spammity[PING]")
-        self.assertEqual(ep.name,"bar baz")
-        self.assertEqual(ep.module_name,"spammity")
-        self.assertEqual(ep.attrs, ())
-        self.assertEqual(ep.extras, ("ping",))
-
-        ep = EntryPoint.parse(" fizzly =  wocka:foo")
-        self.assertEqual(ep.name,"fizzly")
-        self.assertEqual(ep.module_name,"wocka")
-        self.assertEqual(ep.attrs, ("foo",))
-        self.assertEqual(ep.extras, ())
-
-    def testRejects(self):
-        for ep in [
-            "foo", "x=1=2", "x=a:b:c", "q=x/na", "fez=pish:tush-z", "x=f[a]>2",
-        ]:
-            try: EntryPoint.parse(ep)
-            except ValueError: pass
-            else: raise AssertionError("Should've been bad", ep)
-
-    def checkSubMap(self, m):
-        self.assertEqual(len(m), len(self.submap_expect))
-        for key, ep in self.submap_expect.iteritems():
-            self.assertEqual(repr(m.get(key)), repr(ep))
-
-    submap_expect = dict(
-        feature1=EntryPoint('feature1', 'somemodule', ['somefunction']),
-        feature2=EntryPoint('feature2', 'another.module', ['SomeClass'], ['extra1','extra2']),
-        feature3=EntryPoint('feature3', 'this.module', extras=['something'])
-    )
-    submap_str = """
-            # define features for blah blah
-            feature1 = somemodule:somefunction
-            feature2 = another.module:SomeClass [extra1,extra2]
-            feature3 = this.module [something]
-    """
-
-    def testParseList(self):
-        self.checkSubMap(EntryPoint.parse_group("xyz", self.submap_str))
-        self.assertRaises(ValueError, EntryPoint.parse_group, "x a", "foo=bar")
-        self.assertRaises(ValueError, EntryPoint.parse_group, "x",
-            ["foo=baz", "foo=bar"])
-
-    def testParseMap(self):
-        m = EntryPoint.parse_map({'xyz':self.submap_str})
-        self.checkSubMap(m['xyz'])
-        self.assertEqual(m.keys(),['xyz'])
-        m = EntryPoint.parse_map("[xyz]\n"+self.submap_str)
-        self.checkSubMap(m['xyz'])
-        self.assertEqual(m.keys(),['xyz'])
-        self.assertRaises(ValueError, EntryPoint.parse_map, ["[xyz]", "[xyz]"])
-        self.assertRaises(ValueError, EntryPoint.parse_map, self.submap_str)
-
-class RequirementsTests(TestCase):
-
-    def testBasics(self):
-        r = Requirement.parse("Twisted>=1.2")
-        self.assertEqual(str(r),"Twisted>=1.2")
-        self.assertEqual(repr(r),"Requirement.parse('Twisted>=1.2')")
-        self.assertEqual(r, Requirement("Twisted", [('>=','1.2')], ()))
-        self.assertEqual(r, Requirement("twisTed", [('>=','1.2')], ()))
-        self.assertNotEqual(r, Requirement("Twisted", [('>=','2.0')], ()))
-        self.assertNotEqual(r, Requirement("Zope", [('>=','1.2')], ()))
-        self.assertNotEqual(r, Requirement("Zope", [('>=','3.0')], ()))
-        self.assertNotEqual(r, Requirement.parse("Twisted[extras]>=1.2"))
-
-    def testOrdering(self):
-        r1 = Requirement("Twisted", [('==','1.2c1'),('>=','1.2')], ())
-        r2 = Requirement("Twisted", [('>=','1.2'),('==','1.2c1')], ())
-        self.assertEqual(r1,r2)
-        self.assertEqual(str(r1),str(r2))
-        self.assertEqual(str(r2),"Twisted==1.2c1,>=1.2")
-
-    def testBasicContains(self):
-        r = Requirement("Twisted", [('>=','1.2')], ())
-        foo_dist = Distribution.from_filename("FooPkg-1.3_1.egg")
-        twist11  = Distribution.from_filename("Twisted-1.1.egg")
-        twist12  = Distribution.from_filename("Twisted-1.2.egg")
-        self.failUnless(parse_version('1.2') in r)
-        self.failUnless(parse_version('1.1') not in r)
-        self.failUnless('1.2' in r)
-        self.failUnless('1.1' not in r)
-        self.failUnless(foo_dist not in r)
-        self.failUnless(twist11 not in r)
-        self.failUnless(twist12 in r)
-
-    def testAdvancedContains(self):
-        r, = parse_requirements("Foo>=1.2,<=1.3,==1.9,>2.0,!=2.5,<3.0,==4.5")
-        for v in ('1.2','1.2.2','1.3','1.9','2.0.1','2.3','2.6','3.0c1','4.5'):
-            self.failUnless(v in r, (v,r))
-        for v in ('1.2c1','1.3.1','1.5','1.9.1','2.0','2.5','3.0','4.0'):
-            self.failUnless(v not in r, (v,r))
-
-
-    def testOptionsAndHashing(self):
-        r1 = Requirement.parse("Twisted[foo,bar]>=1.2")
-        r2 = Requirement.parse("Twisted[bar,FOO]>=1.2")
-        r3 = Requirement.parse("Twisted[BAR,FOO]>=1.2.0")
-        self.assertEqual(r1,r2)
-        self.assertEqual(r1,r3)
-        self.assertEqual(r1.extras, ("foo","bar"))
-        self.assertEqual(r2.extras, ("bar","foo"))  # extras are normalized
-        self.assertEqual(hash(r1), hash(r2))
-        self.assertEqual(
-            hash(r1), hash(("twisted", ((">=",parse_version("1.2")),),
-                            frozenset(["foo","bar"])))
-        )
-
-    def testVersionEquality(self):
-        r1 = Requirement.parse("setuptools==0.3a2")
-        r2 = Requirement.parse("setuptools!=0.3a4")
-        d = Distribution.from_filename
-
-        self.failIf(d("setuptools-0.3a4.egg") in r1)
-        self.failIf(d("setuptools-0.3a1.egg") in r1)
-        self.failIf(d("setuptools-0.3a4.egg") in r2)
-
-        self.failUnless(d("setuptools-0.3a2.egg") in r1)
-        self.failUnless(d("setuptools-0.3a2.egg") in r2)
-        self.failUnless(d("setuptools-0.3a3.egg") in r2)
-        self.failUnless(d("setuptools-0.3a5.egg") in r2)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-class ParseTests(TestCase):
-
-    def testEmptyParse(self):
-        self.assertEqual(list(parse_requirements('')), [])
-
-    def testYielding(self):
-        for inp,out in [
-            ([], []), ('x',['x']), ([[]],[]), (' x\n y', ['x','y']),
-            (['x\n\n','y'], ['x','y']),
-        ]:
-            self.assertEqual(list(pkg_resources.yield_lines(inp)),out)
-
-    def testSplitting(self):
-        self.assertEqual(
-            list(
-                pkg_resources.split_sections("""
-                    x
-                    [Y]
-                    z
-
-                    a
-                    [b ]
-                    # foo
-                    c
-                    [ d]
-                    [q]
-                    v
-                    """
-                )
-            ),
-            [(None,["x"]), ("Y",["z","a"]), ("b",["c"]), ("d",[]), ("q",["v"])]
-        )
-        self.assertRaises(ValueError,list,pkg_resources.split_sections("[foo"))
-
-    def testSafeName(self):
-        self.assertEqual(safe_name("adns-python"), "adns-python")
-        self.assertEqual(safe_name("WSGI Utils"),  "WSGI-Utils")
-        self.assertEqual(safe_name("WSGI  Utils"), "WSGI-Utils")
-        self.assertEqual(safe_name("Money$$$Maker"), "Money-Maker")
-        self.assertNotEqual(safe_name("peak.web"), "peak-web")
-
-    def testSafeVersion(self):
-        self.assertEqual(safe_version("1.2-1"), "1.2-1")
-        self.assertEqual(safe_version("1.2 alpha"),  "1.2.alpha")
-        self.assertEqual(safe_version("2.3.4 20050521"), "2.3.4.20050521")
-        self.assertEqual(safe_version("Money$$$Maker"), "Money-Maker")
-        self.assertEqual(safe_version("peak.web"), "peak.web")
-
-    def testSimpleRequirements(self):
-        self.assertEqual(
-            list(parse_requirements('Twis-Ted>=1.2-1')),
-            [Requirement('Twis-Ted',[('>=','1.2-1')], ())]
-        )
-        self.assertEqual(
-            list(parse_requirements('Twisted >=1.2, \ # more\n<2.0')),
-            [Requirement('Twisted',[('>=','1.2'),('<','2.0')], ())]
-        )
-        self.assertEqual(
-            Requirement.parse("FooBar==1.99a3"),
-            Requirement("FooBar", [('==','1.99a3')], ())
-        )
-        self.assertRaises(ValueError,Requirement.parse,">=2.3")
-        self.assertRaises(ValueError,Requirement.parse,"x\\")
-        self.assertRaises(ValueError,Requirement.parse,"x==2 q")
-        self.assertRaises(ValueError,Requirement.parse,"X==1\nY==2")
-        self.assertRaises(ValueError,Requirement.parse,"#")
-
-    def testVersionEquality(self):
-        def c(s1,s2):
-            p1, p2 = parse_version(s1),parse_version(s2)
-            self.assertEqual(p1,p2, (s1,s2,p1,p2))
-
-        c('1.2-rc1', '1.2rc1')
-        c('0.4', '0.4.0')
-        c('0.4.0.0', '0.4.0')
-        c('0.4.0-0', '0.4-0')
-        c('0pl1', '0.0pl1')
-        c('0pre1', '0.0c1')
-        c('0.0.0preview1', '0c1')
-        c('0.0c1', '0-rc1')
-        c('1.2a1', '1.2.a.1'); c('1.2...a', '1.2a')
-
-    def testVersionOrdering(self):
-        def c(s1,s2):
-            p1, p2 = parse_version(s1),parse_version(s2)
-            self.failUnless(p1= (3, 12)',
+                reason="pip 23.1.2 required for Python 3.12 and later",
+            ),
+        ),
+        pytest.param(
+            'pip<21',
+            marks=pytest.mark.xfail(
+                'sys.version_info >= (3, 12)',
+                reason="pip 23.1.2 required for Python 3.12 and later",
+            ),
+        ),
+        pytest.param(
+            'pip<22',
+            marks=pytest.mark.xfail(
+                'sys.version_info >= (3, 12)',
+                reason="pip 23.1.2 required for Python 3.12 and later",
+            ),
+        ),
+        pytest.param(
+            'pip<23',
+            marks=pytest.mark.xfail(
+                'sys.version_info >= (3, 12)',
+                reason="pip 23.1.2 required for Python 3.12 and later",
+            ),
+        ),
+        pytest.param(
+            'https://github.com/pypa/pip/archive/main.zip',
+            marks=pytest.mark.xfail(reason='#2975'),
+        ),
+    ],
+)
+def test_pip_upgrade_from_source(
+    pip_version, venv_without_setuptools, setuptools_wheel, setuptools_sdist
+):
+    """
+    Check pip can upgrade setuptools from source.
+    """
+    # Install pip/wheel, in a venv without setuptools (as it
+    # should not be needed for bootstrapping from source)
+    venv = venv_without_setuptools
+    venv.run(["pip", "install", "-U", "wheel"])
+    if pip_version is not None:
+        venv.run(["python", "-m", "pip", "install", "-U", pip_version, "--retries=1"])
+    with pytest.raises(subprocess.CalledProcessError):
+        # Meta-test to make sure setuptools is not installed
+        venv.run(["python", "-c", "import setuptools"])
+
+    # Then install from wheel.
+    venv.run(["pip", "install", str(setuptools_wheel)])
+    # And finally try to upgrade from source.
+    venv.run(["pip", "install", "--no-cache-dir", "--upgrade", str(setuptools_sdist)])
+
+
+def test_no_missing_dependencies(bare_venv, request):
+    """
+    Quick and dirty test to ensure all external dependencies are vendored.
+    """
+    setuptools_dir = request.config.rootdir
+    bare_venv.run(['python', 'setup.py', '--help'], cwd=setuptools_dir)
diff --git a/setuptools/tests/test_warnings.py b/setuptools/tests/test_warnings.py
new file mode 100644
index 0000000000..41193d4f71
--- /dev/null
+++ b/setuptools/tests/test_warnings.py
@@ -0,0 +1,106 @@
+from inspect import cleandoc
+
+import pytest
+
+from setuptools.warnings import SetuptoolsDeprecationWarning, SetuptoolsWarning
+
+_EXAMPLES = {
+    "default": dict(
+        args=("Hello {x}", "\n\t{target} {v:.1f}"),
+        kwargs={"x": 5, "v": 3, "target": "World"},
+        expected="""
+    Hello 5
+    !!
+
+            ********************************************************************************
+            World 3.0
+            ********************************************************************************
+
+    !!
+    """,
+    ),
+    "futue_due_date": dict(
+        args=("Summary", "Lorem ipsum"),
+        kwargs={"due_date": (9999, 11, 22)},
+        expected="""
+    Summary
+    !!
+
+            ********************************************************************************
+            Lorem ipsum
+
+            By 9999-Nov-22, you need to update your project and remove deprecated calls
+            or your builds will no longer be supported.
+            ********************************************************************************
+
+    !!
+    """,
+    ),
+    "past_due_date_with_docs": dict(
+        args=("Summary", "Lorem ipsum"),
+        kwargs={"due_date": (2000, 11, 22), "see_docs": "some_page.html"},
+        expected="""
+    Summary
+    !!
+
+            ********************************************************************************
+            Lorem ipsum
+
+            This deprecation is overdue, please update your project and remove deprecated
+            calls to avoid build errors in the future.
+
+            See https://setuptools.pypa.io/en/latest/some_page.html for details.
+            ********************************************************************************
+
+    !!
+    """,
+    ),
+}
+
+
+@pytest.mark.parametrize("example_name", _EXAMPLES.keys())
+def test_formatting(monkeypatch, example_name):
+    """
+    It should automatically handle indentation, interpolation and things like due date.
+    """
+    args = _EXAMPLES[example_name]["args"]
+    kwargs = _EXAMPLES[example_name]["kwargs"]
+    expected = _EXAMPLES[example_name]["expected"]
+
+    monkeypatch.setenv("SETUPTOOLS_ENFORCE_DEPRECATION", "false")
+    with pytest.warns(SetuptoolsWarning) as warn_info:
+        SetuptoolsWarning.emit(*args, **kwargs)
+    assert _get_message(warn_info) == cleandoc(expected)
+
+
+def test_due_date_enforcement(monkeypatch):
+    class _MyDeprecation(SetuptoolsDeprecationWarning):
+        _SUMMARY = "Summary"
+        _DETAILS = "Lorem ipsum"
+        _DUE_DATE = (2000, 11, 22)
+        _SEE_DOCS = "some_page.html"
+
+    monkeypatch.setenv("SETUPTOOLS_ENFORCE_DEPRECATION", "true")
+    with pytest.raises(SetuptoolsDeprecationWarning) as exc_info:
+        _MyDeprecation.emit()
+
+    expected = """
+    Summary
+    !!
+
+            ********************************************************************************
+            Lorem ipsum
+
+            This deprecation is overdue, please update your project and remove deprecated
+            calls to avoid build errors in the future.
+
+            See https://setuptools.pypa.io/en/latest/some_page.html for details.
+            ********************************************************************************
+
+    !!
+    """
+    assert str(exc_info.value) == cleandoc(expected)
+
+
+def _get_message(warn_info):
+    return next(warn.message.args[0] for warn in warn_info)
diff --git a/setuptools/tests/test_wheel.py b/setuptools/tests/test_wheel.py
new file mode 100644
index 0000000000..70165c608b
--- /dev/null
+++ b/setuptools/tests/test_wheel.py
@@ -0,0 +1,714 @@
+"""wheel tests"""
+
+from __future__ import annotations
+
+import contextlib
+import glob
+import inspect
+import os
+import pathlib
+import shutil
+import stat
+import subprocess
+import sys
+import zipfile
+from typing import Any
+
+import pytest
+from jaraco import path
+from packaging.tags import parse_tag
+from packaging.utils import canonicalize_name
+
+from pkg_resources import PY_MAJOR, Distribution, PathMetadata
+from setuptools.wheel import Wheel
+
+from .contexts import tempdir
+from .textwrap import DALS
+
+from distutils.sysconfig import get_config_var
+from distutils.util import get_platform
+
+WHEEL_INFO_TESTS = (
+    ('invalid.whl', ValueError),
+    (
+        'simplewheel-2.0-1-py2.py3-none-any.whl',
+        {
+            'project_name': 'simplewheel',
+            'version': '2.0',
+            'build': '1',
+            'py_version': 'py2.py3',
+            'abi': 'none',
+            'platform': 'any',
+        },
+    ),
+    (
+        'simple.dist-0.1-py2.py3-none-any.whl',
+        {
+            'project_name': 'simple.dist',
+            'version': '0.1',
+            'build': None,
+            'py_version': 'py2.py3',
+            'abi': 'none',
+            'platform': 'any',
+        },
+    ),
+    (
+        'example_pkg_a-1-py3-none-any.whl',
+        {
+            'project_name': 'example_pkg_a',
+            'version': '1',
+            'build': None,
+            'py_version': 'py3',
+            'abi': 'none',
+            'platform': 'any',
+        },
+    ),
+    (
+        'PyQt5-5.9-5.9.1-cp35.cp36.cp37-abi3-manylinux1_x86_64.whl',
+        {
+            'project_name': 'PyQt5',
+            'version': '5.9',
+            'build': '5.9.1',
+            'py_version': 'cp35.cp36.cp37',
+            'abi': 'abi3',
+            'platform': 'manylinux1_x86_64',
+        },
+    ),
+)
+
+
+@pytest.mark.parametrize(
+    ('filename', 'info'), WHEEL_INFO_TESTS, ids=[t[0] for t in WHEEL_INFO_TESTS]
+)
+def test_wheel_info(filename, info):
+    if inspect.isclass(info):
+        with pytest.raises(info):
+            Wheel(filename)
+        return
+    w = Wheel(filename)
+    assert {k: getattr(w, k) for k in info.keys()} == info
+
+
+@contextlib.contextmanager
+def build_wheel(extra_file_defs=None, **kwargs):
+    file_defs = {
+        'setup.py': (
+            DALS(
+                """
+            # -*- coding: utf-8 -*-
+            from setuptools import setup
+            import setuptools
+            setup(**%r)
+            """
+            )
+            % kwargs
+        ).encode('utf-8'),
+    }
+    if extra_file_defs:
+        file_defs.update(extra_file_defs)
+    with tempdir() as source_dir:
+        path.build(file_defs, source_dir)
+        subprocess.check_call(
+            (sys.executable, 'setup.py', '-q', 'bdist_wheel'), cwd=source_dir
+        )
+        yield glob.glob(os.path.join(source_dir, 'dist', '*.whl'))[0]
+
+
+def tree_set(root):
+    contents = set()
+    for dirpath, dirnames, filenames in os.walk(root):
+        for filename in filenames:
+            contents.add(os.path.join(os.path.relpath(dirpath, root), filename))
+    return contents
+
+
+def flatten_tree(tree):
+    """Flatten nested dicts and lists into a full list of paths"""
+    output = set()
+    for node, contents in tree.items():
+        if isinstance(contents, dict):
+            contents = flatten_tree(contents)
+
+        for elem in contents:
+            if isinstance(elem, dict):
+                output |= {os.path.join(node, val) for val in flatten_tree(elem)}
+            else:
+                output.add(os.path.join(node, elem))
+    return output
+
+
+def format_install_tree(tree):
+    return {
+        x.format(
+            py_version=PY_MAJOR,
+            platform=get_platform(),
+            shlib_ext=get_config_var('EXT_SUFFIX') or get_config_var('SO'),
+        )
+        for x in tree
+    }
+
+
+def _check_wheel_install(
+    filename, install_dir, install_tree_includes, project_name, version, requires_txt
+):
+    w = Wheel(filename)
+    egg_path = os.path.join(install_dir, w.egg_name())
+    w.install_as_egg(egg_path)
+    if install_tree_includes is not None:
+        install_tree = format_install_tree(install_tree_includes)
+        exp = tree_set(install_dir)
+        assert install_tree.issubset(exp), install_tree - exp
+
+    metadata = PathMetadata(egg_path, os.path.join(egg_path, 'EGG-INFO'))
+    dist = Distribution.from_filename(egg_path, metadata=metadata)
+    assert dist.project_name == project_name
+    assert dist.version == version
+    if requires_txt is None:
+        assert not dist.has_metadata('requires.txt')
+    else:
+        # Order must match to ensure reproducibility.
+        assert requires_txt == dist.get_metadata('requires.txt').lstrip()
+
+
+class Record:
+    def __init__(self, id, **kwargs):
+        self._id = id
+        self._fields = kwargs
+
+    def __repr__(self) -> str:
+        return f'{self._id}(**{self._fields!r})'
+
+
+# Using Any to avoid possible type union issues later in test
+# making a TypedDict is not worth in a test and anonymous/inline TypedDict are experimental
+# https://github.com/python/mypy/issues/9884
+WHEEL_INSTALL_TESTS: tuple[dict[str, Any], ...] = (
+    dict(
+        id='basic',
+        file_defs={'foo': {'__init__.py': ''}},
+        setup_kwargs=dict(
+            packages=['foo'],
+        ),
+        install_tree=flatten_tree({
+            'foo-1.0-py{py_version}.egg': {
+                'EGG-INFO': ['PKG-INFO', 'RECORD', 'WHEEL', 'top_level.txt'],
+                'foo': ['__init__.py'],
+            }
+        }),
+    ),
+    dict(
+        id='utf-8',
+        setup_kwargs=dict(
+            description='Description accentuée',
+        ),
+    ),
+    dict(
+        id='data',
+        file_defs={
+            'data.txt': DALS(
+                """
+                Some data...
+                """
+            ),
+        },
+        setup_kwargs=dict(
+            data_files=[('data_dir', ['data.txt'])],
+        ),
+        install_tree=flatten_tree({
+            'foo-1.0-py{py_version}.egg': {
+                'EGG-INFO': ['PKG-INFO', 'RECORD', 'WHEEL', 'top_level.txt'],
+                'data_dir': ['data.txt'],
+            }
+        }),
+    ),
+    dict(
+        id='extension',
+        file_defs={
+            'extension.c': DALS(
+                """
+                #include "Python.h"
+
+                #if PY_MAJOR_VERSION >= 3
+
+                static struct PyModuleDef moduledef = {
+                        PyModuleDef_HEAD_INIT,
+                        "extension",
+                        NULL,
+                        0,
+                        NULL,
+                        NULL,
+                        NULL,
+                        NULL,
+                        NULL
+                };
+
+                #define INITERROR return NULL
+
+                PyMODINIT_FUNC PyInit_extension(void)
+
+                #else
+
+                #define INITERROR return
+
+                void initextension(void)
+
+                #endif
+                {
+                #if PY_MAJOR_VERSION >= 3
+                    PyObject *module = PyModule_Create(&moduledef);
+                #else
+                    PyObject *module = Py_InitModule("extension", NULL);
+                #endif
+                    if (module == NULL)
+                        INITERROR;
+                #if PY_MAJOR_VERSION >= 3
+                    return module;
+                #endif
+                }
+                """
+            ),
+        },
+        setup_kwargs=dict(
+            ext_modules=[
+                Record(
+                    'setuptools.Extension', name='extension', sources=['extension.c']
+                )
+            ],
+        ),
+        install_tree=flatten_tree({
+            'foo-1.0-py{py_version}-{platform}.egg': [
+                'extension{shlib_ext}',
+                {
+                    'EGG-INFO': [
+                        'PKG-INFO',
+                        'RECORD',
+                        'WHEEL',
+                        'top_level.txt',
+                    ]
+                },
+            ]
+        }),
+    ),
+    dict(
+        id='header',
+        file_defs={
+            'header.h': DALS(
+                """
+                """
+            ),
+        },
+        setup_kwargs=dict(
+            headers=['header.h'],
+        ),
+        install_tree=flatten_tree({
+            'foo-1.0-py{py_version}.egg': [
+                'header.h',
+                {
+                    'EGG-INFO': [
+                        'PKG-INFO',
+                        'RECORD',
+                        'WHEEL',
+                        'top_level.txt',
+                    ]
+                },
+            ]
+        }),
+    ),
+    dict(
+        id='script',
+        file_defs={
+            'script.py': DALS(
+                """
+                #/usr/bin/python
+                print('hello world!')
+                """
+            ),
+            'script.sh': DALS(
+                """
+                #/bin/sh
+                echo 'hello world!'
+                """
+            ),
+        },
+        setup_kwargs=dict(
+            scripts=['script.py', 'script.sh'],
+        ),
+        install_tree=flatten_tree({
+            'foo-1.0-py{py_version}.egg': {
+                'EGG-INFO': [
+                    'PKG-INFO',
+                    'RECORD',
+                    'WHEEL',
+                    'top_level.txt',
+                    {'scripts': ['script.py', 'script.sh']},
+                ]
+            }
+        }),
+    ),
+    dict(
+        id='requires1',
+        install_requires='foobar==2.0',
+        install_tree=flatten_tree({
+            'foo-1.0-py{py_version}.egg': {
+                'EGG-INFO': [
+                    'PKG-INFO',
+                    'RECORD',
+                    'WHEEL',
+                    'requires.txt',
+                    'top_level.txt',
+                ]
+            }
+        }),
+        requires_txt=DALS(
+            """
+            foobar==2.0
+            """
+        ),
+    ),
+    dict(
+        id='requires2',
+        install_requires=f"""
+        bar
+        foo<=2.0; {sys.platform!r} in sys_platform
+        """,
+        requires_txt=DALS(
+            """
+            bar
+            foo<=2.0
+            """
+        ),
+    ),
+    dict(
+        id='requires3',
+        install_requires=f"""
+        bar; {sys.platform!r} != sys_platform
+        """,
+    ),
+    dict(
+        id='requires4',
+        install_requires="""
+        foo
+        """,
+        extras_require={
+            'extra': 'foobar>3',
+        },
+        requires_txt=DALS(
+            """
+            foo
+
+            [extra]
+            foobar>3
+            """
+        ),
+    ),
+    dict(
+        id='requires5',
+        extras_require={
+            'extra': f'foobar; {sys.platform!r} != sys_platform',
+        },
+        requires_txt=DALS(
+            """
+            [extra]
+            """
+        ),
+    ),
+    dict(
+        id='requires_ensure_order',
+        install_requires="""
+        foo
+        bar
+        baz
+        qux
+        """,
+        extras_require={
+            'extra': """
+            foobar>3
+            barbaz>4
+            bazqux>5
+            quxzap>6
+            """,
+        },
+        requires_txt=DALS(
+            """
+            foo
+            bar
+            baz
+            qux
+
+            [extra]
+            foobar>3
+            barbaz>4
+            bazqux>5
+            quxzap>6
+            """
+        ),
+    ),
+    dict(
+        id='namespace_package',
+        file_defs={
+            'foo': {
+                'bar': {'__init__.py': ''},
+            },
+        },
+        setup_kwargs=dict(
+            namespace_packages=['foo'],
+            packages=['foo.bar'],
+        ),
+        install_tree=flatten_tree({
+            'foo-1.0-py{py_version}.egg': [
+                'foo-1.0-py{py_version}-nspkg.pth',
+                {
+                    'EGG-INFO': [
+                        'PKG-INFO',
+                        'RECORD',
+                        'WHEEL',
+                        'namespace_packages.txt',
+                        'top_level.txt',
+                    ]
+                },
+                {
+                    'foo': [
+                        '__init__.py',
+                        {'bar': ['__init__.py']},
+                    ]
+                },
+            ]
+        }),
+    ),
+    dict(
+        id='empty_namespace_package',
+        file_defs={
+            'foobar': {
+                '__init__.py': (
+                    "__import__('pkg_resources').declare_namespace(__name__)"
+                )
+            },
+        },
+        setup_kwargs=dict(
+            namespace_packages=['foobar'],
+            packages=['foobar'],
+        ),
+        install_tree=flatten_tree({
+            'foo-1.0-py{py_version}.egg': [
+                'foo-1.0-py{py_version}-nspkg.pth',
+                {
+                    'EGG-INFO': [
+                        'PKG-INFO',
+                        'RECORD',
+                        'WHEEL',
+                        'namespace_packages.txt',
+                        'top_level.txt',
+                    ]
+                },
+                {
+                    'foobar': [
+                        '__init__.py',
+                    ]
+                },
+            ]
+        }),
+    ),
+    dict(
+        id='data_in_package',
+        file_defs={
+            'foo': {
+                '__init__.py': '',
+                'data_dir': {
+                    'data.txt': DALS(
+                        """
+                        Some data...
+                        """
+                    ),
+                },
+            }
+        },
+        setup_kwargs=dict(
+            packages=['foo'],
+            data_files=[('foo/data_dir', ['foo/data_dir/data.txt'])],
+        ),
+        install_tree=flatten_tree({
+            'foo-1.0-py{py_version}.egg': {
+                'EGG-INFO': [
+                    'PKG-INFO',
+                    'RECORD',
+                    'WHEEL',
+                    'top_level.txt',
+                ],
+                'foo': [
+                    '__init__.py',
+                    {
+                        'data_dir': [
+                            'data.txt',
+                        ]
+                    },
+                ],
+            }
+        }),
+    ),
+)
+
+
+@pytest.mark.parametrize(
+    'params',
+    WHEEL_INSTALL_TESTS,
+    ids=[params['id'] for params in WHEEL_INSTALL_TESTS],
+)
+def test_wheel_install(params):
+    project_name = params.get('name', 'foo')
+    version = params.get('version', '1.0')
+    install_requires = params.get('install_requires', [])
+    extras_require = params.get('extras_require', {})
+    requires_txt = params.get('requires_txt', None)
+    install_tree = params.get('install_tree')
+    file_defs = params.get('file_defs', {})
+    setup_kwargs = params.get('setup_kwargs', {})
+    with (
+        build_wheel(
+            name=project_name,
+            version=version,
+            install_requires=install_requires,
+            extras_require=extras_require,
+            extra_file_defs=file_defs,
+            **setup_kwargs,
+        ) as filename,
+        tempdir() as install_dir,
+    ):
+        _check_wheel_install(
+            filename, install_dir, install_tree, project_name, version, requires_txt
+        )
+
+
+def test_wheel_install_pep_503():
+    project_name = 'Foo_Bar'  # PEP 503 canonicalized name is "foo-bar"
+    version = '1.0'
+    with (
+        build_wheel(
+            name=project_name,
+            version=version,
+        ) as filename,
+        tempdir() as install_dir,
+    ):
+        new_filename = filename.replace(project_name, canonicalize_name(project_name))
+        shutil.move(filename, new_filename)
+        _check_wheel_install(
+            new_filename,
+            install_dir,
+            None,
+            canonicalize_name(project_name),
+            version,
+            None,
+        )
+
+
+def test_wheel_no_dist_dir():
+    project_name = 'nodistinfo'
+    version = '1.0'
+    wheel_name = f'{project_name}-{version}-py2.py3-none-any.whl'
+    with tempdir() as source_dir:
+        wheel_path = os.path.join(source_dir, wheel_name)
+        # create an empty zip file
+        zipfile.ZipFile(wheel_path, 'w').close()
+        with tempdir() as install_dir:
+            with pytest.raises(ValueError):
+                _check_wheel_install(
+                    wheel_path, install_dir, None, project_name, version, None
+                )
+
+
+def test_wheel_is_compatible(monkeypatch):
+    def sys_tags():
+        return {
+            (t.interpreter, t.abi, t.platform)
+            for t in parse_tag('cp36-cp36m-manylinux1_x86_64')
+        }
+
+    monkeypatch.setattr('setuptools.wheel._get_supported_tags', sys_tags)
+    assert Wheel('onnxruntime-0.1.2-cp36-cp36m-manylinux1_x86_64.whl').is_compatible()
+
+
+def test_wheel_mode():
+    @contextlib.contextmanager
+    def build_wheel(extra_file_defs=None, **kwargs):
+        file_defs = {
+            'setup.py': (
+                DALS(
+                    """
+                # -*- coding: utf-8 -*-
+                from setuptools import setup
+                import setuptools
+                setup(**%r)
+                """
+                )
+                % kwargs
+            ).encode('utf-8'),
+        }
+        if extra_file_defs:
+            file_defs.update(extra_file_defs)
+        with tempdir() as source_dir:
+            path.build(file_defs, source_dir)
+            runsh = pathlib.Path(source_dir) / "script.sh"
+            os.chmod(runsh, 0o777)
+            subprocess.check_call(
+                (sys.executable, 'setup.py', '-q', 'bdist_wheel'), cwd=source_dir
+            )
+            yield glob.glob(os.path.join(source_dir, 'dist', '*.whl'))[0]
+
+    params = dict(
+        id='script',
+        file_defs={
+            'script.py': DALS(
+                """
+                #/usr/bin/python
+                print('hello world!')
+                """
+            ),
+            'script.sh': DALS(
+                """
+                #/bin/sh
+                echo 'hello world!'
+                """
+            ),
+        },
+        setup_kwargs=dict(
+            scripts=['script.py', 'script.sh'],
+        ),
+        install_tree=flatten_tree({
+            'foo-1.0-py{py_version}.egg': {
+                'EGG-INFO': [
+                    'PKG-INFO',
+                    'RECORD',
+                    'WHEEL',
+                    'top_level.txt',
+                    {'scripts': ['script.py', 'script.sh']},
+                ]
+            }
+        }),
+    )
+
+    project_name = params.get('name', 'foo')
+    version = params.get('version', '1.0')
+    install_tree = params.get('install_tree')
+    file_defs = params.get('file_defs', {})
+    setup_kwargs = params.get('setup_kwargs', {})
+
+    with (
+        build_wheel(
+            name=project_name,
+            version=version,
+            install_requires=[],
+            extras_require={},
+            extra_file_defs=file_defs,
+            **setup_kwargs,
+        ) as filename,
+        tempdir() as install_dir,
+    ):
+        _check_wheel_install(
+            filename, install_dir, install_tree, project_name, version, None
+        )
+        w = Wheel(filename)
+        base = pathlib.Path(install_dir) / w.egg_name()
+        script_sh = base / "EGG-INFO" / "scripts" / "script.sh"
+        assert script_sh.exists()
+        if sys.platform != 'win32':
+            # Editable file mode has no effect on Windows
+            assert oct(stat.S_IMODE(script_sh.stat().st_mode)) == "0o777"
diff --git a/setuptools/tests/test_windows_wrappers.py b/setuptools/tests/test_windows_wrappers.py
new file mode 100644
index 0000000000..f895485387
--- /dev/null
+++ b/setuptools/tests/test_windows_wrappers.py
@@ -0,0 +1,259 @@
+"""
+Python Script Wrapper for Windows
+=================================
+
+setuptools includes wrappers for Python scripts that allows them to be
+executed like regular windows programs.  There are 2 wrappers, one
+for command-line programs, cli.exe, and one for graphical programs,
+gui.exe.  These programs are almost identical, function pretty much
+the same way, and are generated from the same source file.  The
+wrapper programs are used by copying them to the directory containing
+the script they are to wrap and with the same name as the script they
+are to wrap.
+"""
+
+import pathlib
+import platform
+import subprocess
+import sys
+import textwrap
+
+import pytest
+
+import pkg_resources
+from setuptools.command.easy_install import nt_quote_arg
+
+pytestmark = pytest.mark.skipif(sys.platform != 'win32', reason="Windows only")
+
+
+class WrapperTester:
+    @classmethod
+    def prep_script(cls, template):
+        python_exe = nt_quote_arg(sys.executable)
+        return template % locals()
+
+    @classmethod
+    def create_script(cls, tmpdir):
+        """
+        Create a simple script, foo-script.py
+
+        Note that the script starts with a Unix-style '#!' line saying which
+        Python executable to run.  The wrapper will use this line to find the
+        correct Python executable.
+        """
+
+        script = cls.prep_script(cls.script_tmpl)
+
+        with (tmpdir / cls.script_name).open('w') as f:
+            f.write(script)
+
+        # also copy cli.exe to the sample directory
+        with (tmpdir / cls.wrapper_name).open('wb') as f:
+            w = pkg_resources.resource_string('setuptools', cls.wrapper_source)
+            f.write(w)
+
+
+def win_launcher_exe(prefix):
+    """A simple routine to select launcher script based on platform."""
+    assert prefix in ('cli', 'gui')
+    if platform.machine() == "ARM64":
+        return f"{prefix}-arm64.exe"
+    else:
+        return f"{prefix}-32.exe"
+
+
+class TestCLI(WrapperTester):
+    script_name = 'foo-script.py'
+    wrapper_name = 'foo.exe'
+    wrapper_source = win_launcher_exe('cli')
+
+    script_tmpl = textwrap.dedent(
+        """
+        #!%(python_exe)s
+        import sys
+        input = repr(sys.stdin.read())
+        print(sys.argv[0][-14:])
+        print(sys.argv[1:])
+        print(input)
+        if __debug__:
+            print('non-optimized')
+        """
+    ).lstrip()
+
+    def test_basic(self, tmpdir):
+        """
+        When the copy of cli.exe, foo.exe in this example, runs, it examines
+        the path name it was run with and computes a Python script path name
+        by removing the '.exe' suffix and adding the '-script.py' suffix. (For
+        GUI programs, the suffix '-script.pyw' is added.)  This is why we
+        named out script the way we did.  Now we can run out script by running
+        the wrapper:
+
+        This example was a little pathological in that it exercised windows
+        (MS C runtime) quoting rules:
+
+        - Strings containing spaces are surrounded by double quotes.
+
+        - Double quotes in strings need to be escaped by preceding them with
+          back slashes.
+
+        - One or more backslashes preceding double quotes need to be escaped
+          by preceding each of them with back slashes.
+        """
+        self.create_script(tmpdir)
+        cmd = [
+            str(tmpdir / 'foo.exe'),
+            'arg1',
+            'arg 2',
+            'arg "2\\"',
+            'arg 4\\',
+            'arg5 a\\\\b',
+        ]
+        proc = subprocess.Popen(
+            cmd,
+            stdout=subprocess.PIPE,
+            stdin=subprocess.PIPE,
+            text=True,
+            encoding="utf-8",
+        )
+        stdout, _stderr = proc.communicate('hello\nworld\n')
+        actual = stdout.replace('\r\n', '\n')
+        expected = textwrap.dedent(
+            r"""
+            \foo-script.py
+            ['arg1', 'arg 2', 'arg "2\\"', 'arg 4\\', 'arg5 a\\\\b']
+            'hello\nworld\n'
+            non-optimized
+            """
+        ).lstrip()
+        assert actual == expected
+
+    def test_symlink(self, tmpdir):
+        """
+        Ensure that symlink for the foo.exe is working correctly.
+        """
+        script_dir = tmpdir / "script_dir"
+        script_dir.mkdir()
+        self.create_script(script_dir)
+        symlink = pathlib.Path(tmpdir / "foo.exe")
+        symlink.symlink_to(script_dir / "foo.exe")
+
+        cmd = [
+            str(tmpdir / 'foo.exe'),
+            'arg1',
+            'arg 2',
+            'arg "2\\"',
+            'arg 4\\',
+            'arg5 a\\\\b',
+        ]
+        proc = subprocess.Popen(
+            cmd,
+            stdout=subprocess.PIPE,
+            stdin=subprocess.PIPE,
+            text=True,
+            encoding="utf-8",
+        )
+        stdout, _stderr = proc.communicate('hello\nworld\n')
+        actual = stdout.replace('\r\n', '\n')
+        expected = textwrap.dedent(
+            r"""
+            \foo-script.py
+            ['arg1', 'arg 2', 'arg "2\\"', 'arg 4\\', 'arg5 a\\\\b']
+            'hello\nworld\n'
+            non-optimized
+            """
+        ).lstrip()
+        assert actual == expected
+
+    def test_with_options(self, tmpdir):
+        """
+        Specifying Python Command-line Options
+        --------------------------------------
+
+        You can specify a single argument on the '#!' line.  This can be used
+        to specify Python options like -O, to run in optimized mode or -i
+        to start the interactive interpreter.  You can combine multiple
+        options as usual. For example, to run in optimized mode and
+        enter the interpreter after running the script, you could use -Oi:
+        """
+        self.create_script(tmpdir)
+        tmpl = textwrap.dedent(
+            """
+            #!%(python_exe)s  -Oi
+            import sys
+            input = repr(sys.stdin.read())
+            print(sys.argv[0][-14:])
+            print(sys.argv[1:])
+            print(input)
+            if __debug__:
+                print('non-optimized')
+            sys.ps1 = '---'
+            """
+        ).lstrip()
+        with (tmpdir / 'foo-script.py').open('w') as f:
+            f.write(self.prep_script(tmpl))
+        cmd = [str(tmpdir / 'foo.exe')]
+        proc = subprocess.Popen(
+            cmd,
+            stdout=subprocess.PIPE,
+            stdin=subprocess.PIPE,
+            stderr=subprocess.STDOUT,
+            text=True,
+            encoding="utf-8",
+        )
+        stdout, _stderr = proc.communicate()
+        actual = stdout.replace('\r\n', '\n')
+        expected = textwrap.dedent(
+            r"""
+            \foo-script.py
+            []
+            ''
+            ---
+            """
+        ).lstrip()
+        assert actual == expected
+
+
+class TestGUI(WrapperTester):
+    """
+    Testing the GUI Version
+    -----------------------
+    """
+
+    script_name = 'bar-script.pyw'
+    wrapper_source = win_launcher_exe('gui')
+    wrapper_name = 'bar.exe'
+
+    script_tmpl = textwrap.dedent(
+        """
+        #!%(python_exe)s
+        import sys
+        f = open(sys.argv[1], 'wb')
+        bytes_written = f.write(repr(sys.argv[2]).encode('utf-8'))
+        f.close()
+        """
+    ).strip()
+
+    def test_basic(self, tmpdir):
+        """Test the GUI version with the simple script, bar-script.py"""
+        self.create_script(tmpdir)
+
+        cmd = [
+            str(tmpdir / 'bar.exe'),
+            str(tmpdir / 'test_output.txt'),
+            'Test Argument',
+        ]
+        proc = subprocess.Popen(
+            cmd,
+            stdout=subprocess.PIPE,
+            stdin=subprocess.PIPE,
+            stderr=subprocess.STDOUT,
+            text=True,
+            encoding="utf-8",
+        )
+        stdout, stderr = proc.communicate()
+        assert not stdout
+        assert not stderr
+        with (tmpdir / 'test_output.txt').open('rb') as f_out:
+            actual = f_out.read().decode('ascii')
+        assert actual == repr('Test Argument')
diff --git a/setuptools/tests/text.py b/setuptools/tests/text.py
new file mode 100644
index 0000000000..e05cc633ed
--- /dev/null
+++ b/setuptools/tests/text.py
@@ -0,0 +1,4 @@
+class Filenames:
+    unicode = 'smörbröd.py'
+    latin_1 = unicode.encode('latin-1')
+    utf_8 = unicode.encode('utf-8')
diff --git a/setuptools/tests/textwrap.py b/setuptools/tests/textwrap.py
new file mode 100644
index 0000000000..5e39618dca
--- /dev/null
+++ b/setuptools/tests/textwrap.py
@@ -0,0 +1,6 @@
+import textwrap
+
+
+def DALS(s):
+    "dedent and left-strip"
+    return textwrap.dedent(s).lstrip()
diff --git a/setuptools/tests/win_script_wrapper.txt b/setuptools/tests/win_script_wrapper.txt
deleted file mode 100644
index 2d95502e35..0000000000
--- a/setuptools/tests/win_script_wrapper.txt
+++ /dev/null
@@ -1,137 +0,0 @@
-Python Script Wrapper for Windows
-=================================
-
-setuptools includes wrappers for Python scripts that allows them to be
-executed like regular windows programs.  There are 2 wrappers, once
-for command-line programs, cli.exe, and one for graphica programs,
-gui.exe.  These programs are almost identical, function pretty much
-the same way, and are generated from the same source file.  The
-wrapper programs are used by copying them to the directory containing
-the script they are to wrap and with the same name as the script they
-are to wrap.  In the rest of this document, we'll give an example that
-will illustrate this.
-
-Let's create a simple script, foo-script.py:
-
-    >>> import os, sys, tempfile
-    >>> from setuptools.command.easy_install import nt_quote_arg
-    >>> sample_directory = tempfile.mkdtemp()
-    >>> open(os.path.join(sample_directory, 'foo-script.py'), 'w').write(
-    ... """#!%(python_exe)s
-    ... import sys
-    ... input = repr(sys.stdin.read())
-    ... print sys.argv[0][-14:]
-    ... print sys.argv[1:]
-    ... print input
-    ... if __debug__:
-    ...     print 'non-optimized'
-    ... """ % dict(python_exe=nt_quote_arg(sys.executable)))
-
-Note that the script starts with a Unix-style '#!' line saying which
-Python executable to run.  The wrapper will use this to find the
-correct Python executable.
-
-We'll also copy cli.exe to the sample-directory with the name foo.exe:
-
-    >>> import pkg_resources
-    >>> open(os.path.join(sample_directory, 'foo.exe'), 'wb').write(
-    ...     pkg_resources.resource_string('setuptools', 'cli.exe')
-    ...     )
-
-When the copy of cli.exe, foo.exe in this example, runs, it examines
-the path name it was run with and computes a Python script path name
-by removing the '.exe' suffic and adding the '-script.py' suffix. (For
-GUI programs, the suffix '-script-pyw' is added.)  This is why we
-named out script the way we did.  Now we can run out script by running
-the wrapper:
-
-    >>> import os
-    >>> input, output = os.popen4('"'+nt_quote_arg(os.path.join(sample_directory, 'foo.exe'))
-    ...               + r' arg1 "arg 2" "arg \"2\\\"" "arg 4\\" "arg5 a\\b"')
-    >>> input.write('hello\nworld\n')
-    >>> input.close()
-    >>> print output.read(),
-    \foo-script.py
-    ['arg1', 'arg 2', 'arg "2\\"', 'arg 4\\', 'arg5 a\\\\b']
-    'hello\nworld\n'
-    non-optimized
-
-This example was a little pathological in that it exercised windows
-(MS C runtime) quoting rules:
-
-- Strings containing spaces are surrounded by double quotes.
-
-- Double quotes in strings need to be escaped by preceding them with
-  back slashes.
-
-- One or more backslashes preceding double quotes quotes need to be
-  escaped by preceding each of them them with back slashes.
-
-
-Specifying Python Command-line Options
---------------------------------------
-
-You can specify a single argument on the '#!' line.  This can be used
-to specify Python options like -O, to run in optimized mode or -i
-to start the interactive interpreter.  You can combine multiple
-options as usual. For example, to run in optimized mode and
-enter the interpreter after running the script, you could use -Oi:
-
-    >>> open(os.path.join(sample_directory, 'foo-script.py'), 'w').write(
-    ... """#!%(python_exe)s  -Oi  
-    ... import sys
-    ... input = repr(sys.stdin.read())
-    ... print sys.argv[0][-14:]
-    ... print sys.argv[1:]
-    ... print input
-    ... if __debug__:
-    ...     print 'non-optimized'
-    ... sys.ps1 = '---'
-    ... """ % dict(python_exe=nt_quote_arg(sys.executable)))
-
-    >>> input, output = os.popen4(nt_quote_arg(os.path.join(sample_directory, 'foo.exe')))
-    >>> input.close()
-    >>> print output.read(),
-    \foo-script.py
-    []
-    ''
-    ---
-
-Testing the GUI Version
------------------------
-
-Now let's test the GUI version with the simple scipt, bar-script.py:
-
-    >>> import os, sys, tempfile
-    >>> from setuptools.command.easy_install import nt_quote_arg
-    >>> sample_directory = tempfile.mkdtemp()
-    >>> open(os.path.join(sample_directory, 'bar-script.pyw'), 'w').write(
-    ... """#!%(python_exe)s
-    ... import sys
-    ... open(sys.argv[1], 'wb').write(repr(sys.argv[2]))
-    ... """ % dict(python_exe=nt_quote_arg(sys.executable)))
-
-We'll also copy gui.exe to the sample-directory with the name bar.exe:
-
-    >>> import pkg_resources
-    >>> open(os.path.join(sample_directory, 'bar.exe'), 'wb').write(
-    ...     pkg_resources.resource_string('setuptools', 'gui.exe')
-    ...     )
-
-Finally, we'll run the script and check the result:
-
-    >>> import os
-    >>> input, output = os.popen4('"'+nt_quote_arg(os.path.join(sample_directory, 'bar.exe'))
-    ...               + r' "%s" "Test Argument"' % os.path.join(sample_directory, 'test_output.txt'))
-    >>> input.close()
-    >>> print output.read()
-    
-    >>> print open(os.path.join(sample_directory, 'test_output.txt'), 'rb').read()
-    'Test Argument'
-
-
-We're done with the sample_directory:
-
-    >>> import shutil
-    >>> shutil.rmtree(sample_directory)
-
diff --git a/setuptools/unicode_utils.py b/setuptools/unicode_utils.py
new file mode 100644
index 0000000000..f502f5b089
--- /dev/null
+++ b/setuptools/unicode_utils.py
@@ -0,0 +1,102 @@
+import sys
+import unicodedata
+from configparser import RawConfigParser
+
+from .compat import py39
+from .warnings import SetuptoolsDeprecationWarning
+
+
+# HFS Plus uses decomposed UTF-8
+def decompose(path):
+    if isinstance(path, str):
+        return unicodedata.normalize('NFD', path)
+    try:
+        path = path.decode('utf-8')
+        path = unicodedata.normalize('NFD', path)
+        path = path.encode('utf-8')
+    except UnicodeError:
+        pass  # Not UTF-8
+    return path
+
+
+def filesys_decode(path):
+    """
+    Ensure that the given path is decoded,
+    ``None`` when no expected encoding works
+    """
+
+    if isinstance(path, str):
+        return path
+
+    fs_enc = sys.getfilesystemencoding() or 'utf-8'
+    candidates = fs_enc, 'utf-8'
+
+    for enc in candidates:
+        try:
+            return path.decode(enc)
+        except UnicodeDecodeError:
+            continue
+
+    return None
+
+
+def try_encode(string, enc):
+    "turn unicode encoding into a functional routine"
+    try:
+        return string.encode(enc)
+    except UnicodeEncodeError:
+        return None
+
+
+def _read_utf8_with_fallback(file: str, fallback_encoding=py39.LOCALE_ENCODING) -> str:
+    """
+    First try to read the file with UTF-8, if there is an error fallback to a
+    different encoding ("locale" by default). Returns the content of the file.
+    Also useful when reading files that might have been produced by an older version of
+    setuptools.
+    """
+    try:
+        with open(file, "r", encoding="utf-8") as f:
+            return f.read()
+    except UnicodeDecodeError:  # pragma: no cover
+        _Utf8EncodingNeeded.emit(file=file, fallback_encoding=fallback_encoding)
+        with open(file, "r", encoding=fallback_encoding) as f:
+            return f.read()
+
+
+def _cfg_read_utf8_with_fallback(
+    cfg: RawConfigParser, file: str, fallback_encoding=py39.LOCALE_ENCODING
+) -> None:
+    """Same idea as :func:`_read_utf8_with_fallback`, but for the
+    :meth:`RawConfigParser.read` method.
+
+    This method may call ``cfg.clear()``.
+    """
+    try:
+        cfg.read(file, encoding="utf-8")
+    except UnicodeDecodeError:  # pragma: no cover
+        _Utf8EncodingNeeded.emit(file=file, fallback_encoding=fallback_encoding)
+        cfg.clear()
+        cfg.read(file, encoding=fallback_encoding)
+
+
+class _Utf8EncodingNeeded(SetuptoolsDeprecationWarning):
+    _SUMMARY = """
+    `encoding="utf-8"` fails with {file!r}, trying `encoding={fallback_encoding!r}`.
+    """
+
+    _DETAILS = """
+    Fallback behavior for UTF-8 is considered **deprecated** and future versions of
+    `setuptools` may not implement it.
+
+    Please encode {file!r} with "utf-8" to ensure future builds will succeed.
+
+    If this file was produced by `setuptools` itself, cleaning up the cached files
+    and re-building/re-installing the package with a newer version of `setuptools`
+    (e.g. by updating `build-system.requires` in its `pyproject.toml`)
+    might solve the problem.
+    """
+    # TODO: Add a deadline?
+    #       Will we be able to remove this?
+    #       The question comes to mind mainly because of sdists that have been produced
+    #       by old versions of setuptools and published to PyPI...
diff --git a/setuptools/version.py b/setuptools/version.py
new file mode 100644
index 0000000000..ec253c4144
--- /dev/null
+++ b/setuptools/version.py
@@ -0,0 +1,6 @@
+from ._importlib import metadata
+
+try:
+    __version__ = metadata.version('setuptools') or '0.dev0+unknown'
+except Exception:
+    __version__ = '0.dev0+unknown'
diff --git a/setuptools/warnings.py b/setuptools/warnings.py
new file mode 100644
index 0000000000..96467787c2
--- /dev/null
+++ b/setuptools/warnings.py
@@ -0,0 +1,110 @@
+"""Provide basic warnings used by setuptools modules.
+
+Using custom classes (other than ``UserWarning``) allow users to set
+``PYTHONWARNINGS`` filters to run tests and prepare for upcoming changes in
+setuptools.
+"""
+
+from __future__ import annotations
+
+import os
+import warnings
+from datetime import date
+from inspect import cleandoc
+from textwrap import indent
+from typing import TYPE_CHECKING
+
+if TYPE_CHECKING:
+    from typing_extensions import TypeAlias
+
+_DueDate: TypeAlias = tuple[int, int, int]  # time tuple
+_INDENT = 8 * " "
+_TEMPLATE = f"""{80 * '*'}\n{{details}}\n{80 * '*'}"""
+
+
+class SetuptoolsWarning(UserWarning):
+    """Base class in ``setuptools`` warning hierarchy."""
+
+    @classmethod
+    def emit(
+        cls,
+        summary: str | None = None,
+        details: str | None = None,
+        due_date: _DueDate | None = None,
+        see_docs: str | None = None,
+        see_url: str | None = None,
+        stacklevel: int = 2,
+        **kwargs,
+    ) -> None:
+        """Private: reserved for ``setuptools`` internal use only"""
+        # Default values:
+        summary_ = summary or getattr(cls, "_SUMMARY", None) or ""
+        details_ = details or getattr(cls, "_DETAILS", None) or ""
+        due_date = due_date or getattr(cls, "_DUE_DATE", None)
+        docs_ref = see_docs or getattr(cls, "_SEE_DOCS", None)
+        docs_url = docs_ref and f"https://setuptools.pypa.io/en/latest/{docs_ref}"
+        see_url = see_url or getattr(cls, "_SEE_URL", None)
+        due = date(*due_date) if due_date else None
+
+        text = cls._format(summary_, details_, due, see_url or docs_url, kwargs)
+        if due and due < date.today() and _should_enforce():
+            raise cls(text)
+        warnings.warn(text, cls, stacklevel=stacklevel + 1)
+
+    @classmethod
+    def _format(
+        cls,
+        summary: str,
+        details: str,
+        due_date: date | None = None,
+        see_url: str | None = None,
+        format_args: dict | None = None,
+    ) -> str:
+        """Private: reserved for ``setuptools`` internal use only"""
+        today = date.today()
+        summary = cleandoc(summary).format_map(format_args or {})
+        possible_parts = [
+            cleandoc(details).format_map(format_args or {}),
+            (
+                f"\nBy {due_date:%Y-%b-%d}, you need to update your project and remove "
+                "deprecated calls\nor your builds will no longer be supported."
+                if due_date and due_date > today
+                else None
+            ),
+            (
+                "\nThis deprecation is overdue, please update your project and remove "
+                "deprecated\ncalls to avoid build errors in the future."
+                if due_date and due_date < today
+                else None
+            ),
+            (f"\nSee {see_url} for details." if see_url else None),
+        ]
+        parts = [x for x in possible_parts if x]
+        if parts:
+            body = indent(_TEMPLATE.format(details="\n".join(parts)), _INDENT)
+            return "\n".join([summary, "!!\n", body, "\n!!"])
+        return summary
+
+
+class InformationOnly(SetuptoolsWarning):
+    """Currently there is no clear way of displaying messages to the users
+    that use the setuptools backend directly via ``pip``.
+    The only thing that might work is a warning, although it is not the
+    most appropriate tool for the job...
+
+    See pypa/packaging-problems#558.
+    """
+
+
+class SetuptoolsDeprecationWarning(SetuptoolsWarning):
+    """
+    Base class for warning deprecations in ``setuptools``
+
+    This class is not derived from ``DeprecationWarning``, and as such is
+    visible by default.
+    """
+
+
+def _should_enforce():
+    enforce = os.getenv("SETUPTOOLS_ENFORCE_DEPRECATION", "false").lower()
+    return enforce in ("true", "on", "ok", "1")
diff --git a/setuptools/wheel.py b/setuptools/wheel.py
new file mode 100644
index 0000000000..c7ca43b5cf
--- /dev/null
+++ b/setuptools/wheel.py
@@ -0,0 +1,236 @@
+"""Wheels support."""
+
+import contextlib
+import email
+import functools
+import itertools
+import os
+import posixpath
+import re
+import zipfile
+
+from packaging.tags import sys_tags
+from packaging.utils import canonicalize_name
+from packaging.version import Version as parse_version
+
+import setuptools
+from setuptools.archive_util import _unpack_zipfile_obj
+from setuptools.command.egg_info import _egg_basename, write_requirements
+
+from .unicode_utils import _read_utf8_with_fallback
+
+from distutils.util import get_platform
+
+WHEEL_NAME = re.compile(
+    r"""^(?P.+?)-(?P\d.*?)
+    ((-(?P\d.*?))?-(?P.+?)-(?P.+?)-(?P.+?)
+    )\.whl$""",
+    re.VERBOSE,
+).match
+
+NAMESPACE_PACKAGE_INIT = "__import__('pkg_resources').declare_namespace(__name__)\n"
+
+
+@functools.cache
+def _get_supported_tags():
+    # We calculate the supported tags only once, otherwise calling
+    # this method on thousands of wheels takes seconds instead of
+    # milliseconds.
+    return {(t.interpreter, t.abi, t.platform) for t in sys_tags()}
+
+
+def unpack(src_dir, dst_dir) -> None:
+    """Move everything under `src_dir` to `dst_dir`, and delete the former."""
+    for dirpath, dirnames, filenames in os.walk(src_dir):
+        subdir = os.path.relpath(dirpath, src_dir)
+        for f in filenames:
+            src = os.path.join(dirpath, f)
+            dst = os.path.join(dst_dir, subdir, f)
+            os.renames(src, dst)
+        for n, d in reversed(list(enumerate(dirnames))):
+            src = os.path.join(dirpath, d)
+            dst = os.path.join(dst_dir, subdir, d)
+            if not os.path.exists(dst):
+                # Directory does not exist in destination,
+                # rename it and prune it from os.walk list.
+                os.renames(src, dst)
+                del dirnames[n]
+    # Cleanup.
+    for dirpath, dirnames, filenames in os.walk(src_dir, topdown=True):
+        assert not filenames
+        os.rmdir(dirpath)
+
+
+@contextlib.contextmanager
+def disable_info_traces():
+    """
+    Temporarily disable info traces.
+    """
+    from distutils import log
+
+    saved = log.set_threshold(log.WARN)
+    try:
+        yield
+    finally:
+        log.set_threshold(saved)
+
+
+class Wheel:
+    def __init__(self, filename) -> None:
+        match = WHEEL_NAME(os.path.basename(filename))
+        if match is None:
+            raise ValueError(f'invalid wheel name: {filename!r}')
+        self.filename = filename
+        for k, v in match.groupdict().items():
+            setattr(self, k, v)
+
+    def tags(self):
+        """List tags (py_version, abi, platform) supported by this wheel."""
+        return itertools.product(
+            self.py_version.split('.'),
+            self.abi.split('.'),
+            self.platform.split('.'),
+        )
+
+    def is_compatible(self):
+        """Is the wheel compatible with the current platform?"""
+        return next((True for t in self.tags() if t in _get_supported_tags()), False)
+
+    def egg_name(self):
+        return (
+            _egg_basename(
+                self.project_name,
+                self.version,
+                platform=(None if self.platform == 'any' else get_platform()),
+            )
+            + ".egg"
+        )
+
+    def get_dist_info(self, zf):
+        # find the correct name of the .dist-info dir in the wheel file
+        for member in zf.namelist():
+            dirname = posixpath.dirname(member)
+            if dirname.endswith('.dist-info') and canonicalize_name(dirname).startswith(
+                canonicalize_name(self.project_name)
+            ):
+                return dirname
+        raise ValueError("unsupported wheel format. .dist-info not found")
+
+    def install_as_egg(self, destination_eggdir) -> None:
+        """Install wheel as an egg directory."""
+        with zipfile.ZipFile(self.filename) as zf:
+            self._install_as_egg(destination_eggdir, zf)
+
+    def _install_as_egg(self, destination_eggdir, zf):
+        dist_basename = f'{self.project_name}-{self.version}'
+        dist_info = self.get_dist_info(zf)
+        dist_data = f'{dist_basename}.data'
+        egg_info = os.path.join(destination_eggdir, 'EGG-INFO')
+
+        self._convert_metadata(zf, destination_eggdir, dist_info, egg_info)
+        self._move_data_entries(destination_eggdir, dist_data)
+        self._fix_namespace_packages(egg_info, destination_eggdir)
+
+    @staticmethod
+    def _convert_metadata(zf, destination_eggdir, dist_info, egg_info):
+        import pkg_resources
+
+        def get_metadata(name):
+            with zf.open(posixpath.join(dist_info, name)) as fp:
+                value = fp.read().decode('utf-8')
+                return email.parser.Parser().parsestr(value)
+
+        wheel_metadata = get_metadata('WHEEL')
+        # Check wheel format version is supported.
+        wheel_version = parse_version(wheel_metadata.get('Wheel-Version'))
+        wheel_v1 = parse_version('1.0') <= wheel_version < parse_version('2.0dev0')
+        if not wheel_v1:
+            raise ValueError(f'unsupported wheel format version: {wheel_version}')
+        # Extract to target directory.
+        _unpack_zipfile_obj(zf, destination_eggdir)
+        # Convert metadata.
+        dist_info = os.path.join(destination_eggdir, dist_info)
+        dist = pkg_resources.Distribution.from_location(
+            destination_eggdir,
+            dist_info,
+            metadata=pkg_resources.PathMetadata(destination_eggdir, dist_info),
+        )
+
+        # Note: Evaluate and strip markers now,
+        # as it's difficult to convert back from the syntax:
+        # foobar; "linux" in sys_platform and extra == 'test'
+        def raw_req(req):
+            req.marker = None
+            return str(req)
+
+        install_requires = list(map(raw_req, dist.requires()))
+        extras_require = {
+            extra: [
+                req
+                for req in map(raw_req, dist.requires((extra,)))
+                if req not in install_requires
+            ]
+            for extra in dist.extras
+        }
+        os.rename(dist_info, egg_info)
+        os.rename(
+            os.path.join(egg_info, 'METADATA'),
+            os.path.join(egg_info, 'PKG-INFO'),
+        )
+        setup_dist = setuptools.Distribution(
+            attrs=dict(
+                install_requires=install_requires,
+                extras_require=extras_require,
+            ),
+        )
+        with disable_info_traces():
+            write_requirements(
+                setup_dist.get_command_obj('egg_info'),
+                None,
+                os.path.join(egg_info, 'requires.txt'),
+            )
+
+    @staticmethod
+    def _move_data_entries(destination_eggdir, dist_data):
+        """Move data entries to their correct location."""
+        dist_data = os.path.join(destination_eggdir, dist_data)
+        dist_data_scripts = os.path.join(dist_data, 'scripts')
+        if os.path.exists(dist_data_scripts):
+            egg_info_scripts = os.path.join(destination_eggdir, 'EGG-INFO', 'scripts')
+            os.mkdir(egg_info_scripts)
+            for entry in os.listdir(dist_data_scripts):
+                # Remove bytecode, as it's not properly handled
+                # during easy_install scripts install phase.
+                if entry.endswith('.pyc'):
+                    os.unlink(os.path.join(dist_data_scripts, entry))
+                else:
+                    os.rename(
+                        os.path.join(dist_data_scripts, entry),
+                        os.path.join(egg_info_scripts, entry),
+                    )
+            os.rmdir(dist_data_scripts)
+        for subdir in filter(
+            os.path.exists,
+            (
+                os.path.join(dist_data, d)
+                for d in ('data', 'headers', 'purelib', 'platlib')
+            ),
+        ):
+            unpack(subdir, destination_eggdir)
+        if os.path.exists(dist_data):
+            os.rmdir(dist_data)
+
+    @staticmethod
+    def _fix_namespace_packages(egg_info, destination_eggdir):
+        namespace_packages = os.path.join(egg_info, 'namespace_packages.txt')
+        if os.path.exists(namespace_packages):
+            namespace_packages = _read_utf8_with_fallback(namespace_packages).split()
+
+            for mod in namespace_packages:
+                mod_dir = os.path.join(destination_eggdir, *mod.split('.'))
+                mod_init = os.path.join(mod_dir, '__init__.py')
+                if not os.path.exists(mod_dir):
+                    os.mkdir(mod_dir)
+                if not os.path.exists(mod_init):
+                    with open(mod_init, 'w', encoding="utf-8") as fp:
+                        fp.write(NAMESPACE_PACKAGE_INIT)
diff --git a/setuptools/windows_support.py b/setuptools/windows_support.py
new file mode 100644
index 0000000000..7a2b53a291
--- /dev/null
+++ b/setuptools/windows_support.py
@@ -0,0 +1,30 @@
+import platform
+
+
+def windows_only(func):
+    if platform.system() != 'Windows':
+        return lambda *args, **kwargs: None
+    return func
+
+
+@windows_only
+def hide_file(path: str) -> None:
+    """
+    Set the hidden attribute on a file or directory.
+
+    From https://stackoverflow.com/questions/19622133/
+
+    `path` must be text.
+    """
+    import ctypes
+    import ctypes.wintypes
+
+    SetFileAttributes = ctypes.windll.kernel32.SetFileAttributesW
+    SetFileAttributes.argtypes = ctypes.wintypes.LPWSTR, ctypes.wintypes.DWORD
+    SetFileAttributes.restype = ctypes.wintypes.BOOL
+
+    FILE_ATTRIBUTE_HIDDEN = 0x02
+
+    ret = SetFileAttributes(path, FILE_ATTRIBUTE_HIDDEN)
+    if not ret:
+        raise ctypes.WinError()
diff --git a/site.py b/site.py
deleted file mode 100755
index 80e084b257..0000000000
--- a/site.py
+++ /dev/null
@@ -1,82 +0,0 @@
-def __boot():
-    import sys, imp, os, os.path   
-    PYTHONPATH = os.environ.get('PYTHONPATH')
-    if PYTHONPATH is None or (sys.platform=='win32' and not PYTHONPATH):
-        PYTHONPATH = []
-    else:
-        PYTHONPATH = PYTHONPATH.split(os.pathsep)
-
-    pic = getattr(sys,'path_importer_cache',{})
-    stdpath = sys.path[len(PYTHONPATH):]
-    mydir = os.path.dirname(__file__)
-    #print "searching",stdpath,sys.path
-
-    for item in stdpath:
-        if item==mydir or not item:
-            continue    # skip if current dir. on Windows, or my own directory
-        importer = pic.get(item)
-        if importer is not None:
-            loader = importer.find_module('site')
-            if loader is not None:
-                # This should actually reload the current module
-                loader.load_module('site')
-                break
-        else:
-            try:
-                stream, path, descr = imp.find_module('site',[item])
-            except ImportError:
-                continue
-            if stream is None:
-                continue
-            try:
-                # This should actually reload the current module
-                imp.load_module('site',stream,path,descr)
-            finally:
-                stream.close()
-            break
-    else:
-        raise ImportError("Couldn't find the real 'site' module")
-
-    #print "loaded", __file__
-
-    known_paths = dict([(makepath(item)[1],1) for item in sys.path]) # 2.2 comp
-
-    oldpos = getattr(sys,'__egginsert',0)   # save old insertion position
-    sys.__egginsert = 0                     # and reset the current one
-
-    for item in PYTHONPATH:
-        addsitedir(item)
-
-    sys.__egginsert += oldpos           # restore effective old position
-    
-    d,nd = makepath(stdpath[0])
-    insert_at = None
-    new_path = []
-
-    for item in sys.path:
-        p,np = makepath(item)
-
-        if np==nd and insert_at is None:
-            # We've hit the first 'system' path entry, so added entries go here
-            insert_at = len(new_path)
-
-        if np in known_paths or insert_at is None:
-            new_path.append(item)
-        else:
-            # new path after the insert point, back-insert it
-            new_path.insert(insert_at, item)
-            insert_at += 1
-            
-    sys.path[:] = new_path
-
-if __name__=='site':    
-    __boot()
-    del __boot
-    
-
-
-
-
-
-
-
diff --git a/tests/install_test.py b/tests/install_test.py
deleted file mode 100644
index 02deb81860..0000000000
--- a/tests/install_test.py
+++ /dev/null
@@ -1,75 +0,0 @@
-import urllib2
-import sys
-import os
-
-if os.path.exists('distribute_setup.py'):
-    print 'distribute_setup.py exists in the current dir, aborting'
-    sys.exit(2)
-
-print '**** Starting Test'
-print '\n\n'
-
-is_jython = sys.platform.startswith('java')
-if is_jython:
-    import subprocess
-
-print 'Downloading bootstrap'
-file = urllib2.urlopen('http://nightly.ziade.org/distribute_setup.py')
-f = open('distribute_setup.py', 'w')
-f.write(file.read())
-f.close()
-
-# running it
-args = [sys.executable]  + ['distribute_setup.py']
-if is_jython:
-    res = subprocess.call(args)
-else:
-    res = os.spawnv(os.P_WAIT, sys.executable, args)
-
-if res != 0:
-    print '**** Test failed, please send me the output at tarek@ziade.org'
-    os.remove('distribute_setup.py')
-    sys.exit(2)
-
-# now checking if Distribute is installed
-script = """\
-import sys
-try:
-    import setuptools
-except ImportError:
-    sys.exit(0)
-
-sys.exit(hasattr(setuptools, "_distribute"))
-"""
-
-root = 'script'
-seed = 0
-script_name = '%s%d.py' % (root, seed)
-
-while os.path.exists(script_name):
-    seed += 1
-    script_name = '%s%d.py' % (root, seed)
-
-f = open(script_name, 'w')
-try:
-    f.write(script)
-finally:
-    f.close()
-
-try:
-    args = [sys.executable]  + [script_name]
-    if is_jython:
-        res = subprocess.call(args)
-    else:
-        res = os.spawnv(os.P_WAIT, sys.executable, args)
-
-    print '\n\n'
-    if res:
-        print '**** Test is OK'
-    else:
-        print '**** Test failed, please send me the output at tarek@ziade.org'
-finally:
-    if os.path.exists(script_name):
-        os.remove(script_name)
-    os.remove('distribute_setup.py')
-
diff --git a/tests/shlib_test/hello.c b/tests/shlib_test/hello.c
deleted file mode 100755
index 9998372ccd..0000000000
--- a/tests/shlib_test/hello.c
+++ /dev/null
@@ -1,168 +0,0 @@
-/* Generated by Pyrex 0.9.3 on Thu Jan 05 17:47:12 2006 */
-
-#include "Python.h"
-#include "structmember.h"
-#ifndef PY_LONG_LONG
-  #define PY_LONG_LONG LONG_LONG
-#endif
-
-
-typedef struct {PyObject **p; char *s;} __Pyx_InternTabEntry; /*proto*/
-typedef struct {PyObject **p; char *s; long n;} __Pyx_StringTabEntry; /*proto*/
-static PyObject *__Pyx_UnpackItem(PyObject *, int); /*proto*/
-static int __Pyx_EndUnpack(PyObject *, int); /*proto*/
-static int __Pyx_PrintItem(PyObject *); /*proto*/
-static int __Pyx_PrintNewline(void); /*proto*/
-static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb); /*proto*/
-static void __Pyx_ReRaise(void); /*proto*/
-static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list); /*proto*/
-static PyObject *__Pyx_GetExcValue(void); /*proto*/
-static int __Pyx_ArgTypeTest(PyObject *obj, PyTypeObject *type, int none_allowed, char *name); /*proto*/
-static int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type); /*proto*/
-static int __Pyx_GetStarArgs(PyObject **args, PyObject **kwds, char *kwd_list[], int nargs, PyObject **args2, PyObject **kwds2); /*proto*/
-static void __Pyx_WriteUnraisable(char *name); /*proto*/
-static void __Pyx_AddTraceback(char *funcname); /*proto*/
-static PyTypeObject *__Pyx_ImportType(char *module_name, char *class_name, long size);  /*proto*/
-static int __Pyx_SetVtable(PyObject *dict, void *vtable); /*proto*/
-static int __Pyx_GetVtable(PyObject *dict, void *vtabptr); /*proto*/
-static PyObject *__Pyx_CreateClass(PyObject *bases, PyObject *dict, PyObject *name, char *modname); /*proto*/
-static int __Pyx_InternStrings(__Pyx_InternTabEntry *t); /*proto*/
-static int __Pyx_InitStrings(__Pyx_StringTabEntry *t); /*proto*/
-static PyObject *__Pyx_GetName(PyObject *dict, PyObject *name); /*proto*/
-
-static PyObject *__pyx_m;
-static PyObject *__pyx_b;
-static int __pyx_lineno;
-static char *__pyx_filename;
-staticforward char **__pyx_f;
-
-/* Declarations from hello */
-
-char (*(get_hello_msg(void))); /*proto*/
-
-/* Implementation of hello */
-
-static PyObject *__pyx_n_hello;
-
-static PyObject *__pyx_f_5hello_hello(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static PyObject *__pyx_f_5hello_hello(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
-  PyObject *__pyx_r;
-  PyObject *__pyx_1 = 0;
-  static char *__pyx_argnames[] = {0};
-  if (!PyArg_ParseTupleAndKeywords(__pyx_args, __pyx_kwds, "", __pyx_argnames)) return 0;
-
-  /* "C:\cygwin\home\pje\setuptools\tests\shlib_test\hello.pyx":4 */
-  __pyx_1 = PyString_FromString(get_hello_msg()); if (!__pyx_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 4; goto __pyx_L1;}
-  __pyx_r = __pyx_1;
-  __pyx_1 = 0;
-  goto __pyx_L0;
-
-  __pyx_r = Py_None; Py_INCREF(__pyx_r);
-  goto __pyx_L0;
-  __pyx_L1:;
-  Py_XDECREF(__pyx_1);
-  __Pyx_AddTraceback("hello.hello");
-  __pyx_r = 0;
-  __pyx_L0:;
-  return __pyx_r;
-}
-
-static __Pyx_InternTabEntry __pyx_intern_tab[] = {
-  {&__pyx_n_hello, "hello"},
-  {0, 0}
-};
-
-static struct PyMethodDef __pyx_methods[] = {
-  {"hello", (PyCFunction)__pyx_f_5hello_hello, METH_VARARGS|METH_KEYWORDS, 0},
-  {0, 0, 0, 0}
-};
-
-DL_EXPORT(void) inithello(void); /*proto*/
-DL_EXPORT(void) inithello(void) {
-  __pyx_m = Py_InitModule4("hello", __pyx_methods, 0, 0, PYTHON_API_VERSION);
-  if (!__pyx_m) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; goto __pyx_L1;};
-  __pyx_b = PyImport_AddModule("__builtin__");
-  if (!__pyx_b) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; goto __pyx_L1;};
-  if (PyObject_SetAttrString(__pyx_m, "__builtins__", __pyx_b) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; goto __pyx_L1;};
-  if (__Pyx_InternStrings(__pyx_intern_tab) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; goto __pyx_L1;};
-
-  /* "C:\cygwin\home\pje\setuptools\tests\shlib_test\hello.pyx":3 */
-  return;
-  __pyx_L1:;
-  __Pyx_AddTraceback("hello");
-}
-
-static char *__pyx_filenames[] = {
-  "hello.pyx",
-};
-statichere char **__pyx_f = __pyx_filenames;
-
-/* Runtime support code */
-
-static int __Pyx_InternStrings(__Pyx_InternTabEntry *t) {
-    while (t->p) {
-        *t->p = PyString_InternFromString(t->s);
-        if (!*t->p)
-            return -1;
-        ++t;
-    }
-    return 0;
-}
-
-#include "compile.h"
-#include "frameobject.h"
-#include "traceback.h"
-
-static void __Pyx_AddTraceback(char *funcname) {
-    PyObject *py_srcfile = 0;
-    PyObject *py_funcname = 0;
-    PyObject *py_globals = 0;
-    PyObject *empty_tuple = 0;
-    PyObject *empty_string = 0;
-    PyCodeObject *py_code = 0;
-    PyFrameObject *py_frame = 0;
-    
-    py_srcfile = PyString_FromString(__pyx_filename);
-    if (!py_srcfile) goto bad;
-    py_funcname = PyString_FromString(funcname);
-    if (!py_funcname) goto bad;
-    py_globals = PyModule_GetDict(__pyx_m);
-    if (!py_globals) goto bad;
-    empty_tuple = PyTuple_New(0);
-    if (!empty_tuple) goto bad;
-    empty_string = PyString_FromString("");
-    if (!empty_string) goto bad;
-    py_code = PyCode_New(
-        0,            /*int argcount,*/
-        0,            /*int nlocals,*/
-        0,            /*int stacksize,*/
-        0,            /*int flags,*/
-        empty_string, /*PyObject *code,*/
-        empty_tuple,  /*PyObject *consts,*/
-        empty_tuple,  /*PyObject *names,*/
-        empty_tuple,  /*PyObject *varnames,*/
-        empty_tuple,  /*PyObject *freevars,*/
-        empty_tuple,  /*PyObject *cellvars,*/
-        py_srcfile,   /*PyObject *filename,*/
-        py_funcname,  /*PyObject *name,*/
-        __pyx_lineno,   /*int firstlineno,*/
-        empty_string  /*PyObject *lnotab*/
-    );
-    if (!py_code) goto bad;
-    py_frame = PyFrame_New(
-        PyThreadState_Get(), /*PyThreadState *tstate,*/
-        py_code,             /*PyCodeObject *code,*/
-        py_globals,          /*PyObject *globals,*/
-        0                    /*PyObject *locals*/
-    );
-    if (!py_frame) goto bad;
-    py_frame->f_lineno = __pyx_lineno;
-    PyTraceBack_Here(py_frame);
-bad:
-    Py_XDECREF(py_srcfile);
-    Py_XDECREF(py_funcname);
-    Py_XDECREF(empty_tuple);
-    Py_XDECREF(empty_string);
-    Py_XDECREF(py_code);
-    Py_XDECREF(py_frame);
-}
diff --git a/tests/shlib_test/hello.pyx b/tests/shlib_test/hello.pyx
deleted file mode 100755
index 58ce6919a2..0000000000
--- a/tests/shlib_test/hello.pyx
+++ /dev/null
@@ -1,4 +0,0 @@
-cdef extern char *get_hello_msg()
-
-def hello():
-    return get_hello_msg()
diff --git a/tests/shlib_test/hellolib.c b/tests/shlib_test/hellolib.c
deleted file mode 100755
index 88d65cee92..0000000000
--- a/tests/shlib_test/hellolib.c
+++ /dev/null
@@ -1,3 +0,0 @@
-extern char* get_hello_msg() {
-    return "Hello, world!";
-}
diff --git a/tests/shlib_test/setup.py b/tests/shlib_test/setup.py
deleted file mode 100755
index b0c93996f3..0000000000
--- a/tests/shlib_test/setup.py
+++ /dev/null
@@ -1,10 +0,0 @@
-from setuptools import setup, Extension, Library
-
-setup(
-    name="shlib_test",
-    ext_modules = [
-        Library("hellolib", ["hellolib.c"]),
-        Extension("hello", ["hello.pyx"], libraries=["hellolib"])
-    ],
-    test_suite="test_hello.HelloWorldTest",
-)
diff --git a/tests/shlib_test/test_hello.py b/tests/shlib_test/test_hello.py
deleted file mode 100755
index 6da02e31d4..0000000000
--- a/tests/shlib_test/test_hello.py
+++ /dev/null
@@ -1,7 +0,0 @@
-from unittest import TestCase
-
-class HelloWorldTest(TestCase):
-    def testHelloMsg(self):
-        from hello import hello
-        self.assertEqual(hello(), "Hello, world!")
-
diff --git a/tools/build_launchers.py b/tools/build_launchers.py
new file mode 100644
index 0000000000..48609367a0
--- /dev/null
+++ b/tools/build_launchers.py
@@ -0,0 +1,156 @@
+"""
+Build executable launchers for Windows.
+
+Build module requires installation of
+`CMake `_ and Visual Studio.
+
+Please ensure that buildtools v143 or later are installed for Visual
+Studio. Ensure that you install ARM build tools.
+
+From Visual Studio Installer:
+Visual Studio -> Modify -> Individual Components
+
+List of components needed to install to compile on ARM:
+- C++ Universal Windows Platform Support for v143 build Tools (ARM64)
+- MSVC v143 - VS 2022 C++ ARM64 build tools (latest)
+- MSVC v143 - VS 2022 C++ ARM64 Spectre-mitigated libs (latest)
+- C++ ATL for latest v143 build tools (ARM64)
+"""
+
+import functools
+import itertools
+import os
+import pathlib
+import shutil
+import subprocess
+import tempfile
+
+BUILD_TARGETS = ["cli", "gui"]
+GUI = {"cli": 0, "gui": 1}
+BUILD_PLATFORMS = ["Win32", "x64", "arm64"]
+REPO_ROOT = pathlib.Path(__file__).parent.parent.resolve()
+LAUNCHER_CMAKE_PROJECT = REPO_ROOT / "launcher"
+MSBUILD_OUT_DIR = REPO_ROOT / "setuptools"
+VISUAL_STUDIO_VERSION = "Visual Studio 17 2022"
+"""
+Version of Visual Studio that is currently installed on the machine.
+Not tested with the older visual studios less then 16 version.
+Generators
+* Visual Studio 17 2022        = Generates Visual Studio 2022 project files.
+                                 Use -A option to specify architecture.
+  Visual Studio 16 2019        = Generates Visual Studio 2019 project files.
+                                 Use -A option to specify architecture.
+  Visual Studio 15 2017 [arch] = Generates Visual Studio 2017 project files.
+                                 Optional [arch] can be "Win64" or "ARM".
+  Visual Studio 14 2015 [arch] = Generates Visual Studio 2015 project files.
+                                 Optional [arch] can be "Win64" or "ARM".
+  Visual Studio 12 2013 [arch] = Generates Visual Studio 2013 project files.
+                                 Optional [arch] can be "Win64" or "ARM".
+  Visual Studio 11 2012 [arch] = Deprecated.  Generates Visual Studio 2012
+                                 project files.  Optional [arch] can be
+                                 "Win64" or "ARM".
+  Visual Studio 9 2008 [arch]  = Generates Visual Studio 2008 project files.
+                                 Optional [arch] can be "Win64" or "IA64".
+"""
+
+
+def resolve_platform(platform: str) -> str:
+    if platform in ["Win32", "x64"]:
+        return platform[-2:]
+    return platform
+
+
+def get_executable_name(name, platform: str) -> str:
+    return f"{name}-{resolve_platform(platform)}"
+
+
+def generate_cmake_project(build_arena, cmake_project_path, platform, is_gui):
+    cmd = [
+        get_cmake(),
+        '-G',
+        VISUAL_STUDIO_VERSION,
+        '-A',
+        platform,
+        cmake_project_path,
+        f'-DGUI={is_gui}',
+    ]
+    subprocess.check_call(cmd, cwd=build_arena)
+
+
+def build_cmake_project_with_msbuild(build_arena, msbuild_parameters):
+    cmd = [
+        get_msbuild(),
+        'launcher.vcxproj',
+    ] + msbuild_parameters
+    subprocess.check_call(cmd, cwd=build_arena)
+
+
+@functools.lru_cache
+def get_cmake():
+    """Find CMake using registry."""
+    import winreg
+
+    with winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, r"SOFTWARE\Kitware\CMake") as key:
+        root = pathlib.Path(winreg.QueryValueEx(key, "InstallDir")[0])
+    return root / 'bin\\CMake.exe'
+
+
+@functools.lru_cache
+def get_msbuild():
+    """Use VSWhere to find MSBuild."""
+    vswhere = pathlib.Path(
+        os.environ['ProgramFiles(x86)'],
+        'Microsoft Visual Studio',
+        'Installer',
+        'vswhere.exe',
+    )
+    cmd = [
+        vswhere,
+        '-latest',
+        '-prerelease',
+        '-products',
+        '*',
+        '-requires',
+        'Microsoft.Component.MSBuild',
+        '-find',
+        r'MSBuild\**\Bin\MSBuild.exe',
+    ]
+    try:
+        return subprocess.check_output(cmd, encoding='utf-8', text=True).strip()
+    except subprocess.CalledProcessError as e:
+        raise SystemExit("Unable to find MSBuild; check Visual Studio install") from e
+
+
+def do_build(arena, platform, target):
+    print(f"Building {target} for {platform}")
+
+    generate_cmake_project(arena, LAUNCHER_CMAKE_PROJECT, platform, GUI[target])
+
+    build_params = [
+        '/t:build',
+        '/property:Configuration=Release',
+        f'/property:Platform={platform}',
+        f'/p:OutDir={MSBUILD_OUT_DIR.resolve()}',
+        f'/p:TargetName={get_executable_name(target, platform)}',
+    ]
+    build_cmake_project_with_msbuild(arena, build_params)
+
+
+def main():
+    # check for executables early
+    get_cmake()
+    get_msbuild()
+
+    for platform, target in itertools.product(BUILD_PLATFORMS, BUILD_TARGETS):
+        with tempfile.TemporaryDirectory(dir=REPO_ROOT) as arena:
+            do_build(arena, platform, target)
+
+    # copy win32 as default executables
+    for target in BUILD_TARGETS:
+        executable = MSBUILD_OUT_DIR / f"{get_executable_name(target, 'Win32')}.exe"
+        destination_executable = MSBUILD_OUT_DIR / f"{target}.exe"
+        shutil.copy(executable, destination_executable)
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/finalize.py b/tools/finalize.py
new file mode 100644
index 0000000000..d646e67cd0
--- /dev/null
+++ b/tools/finalize.py
@@ -0,0 +1,62 @@
+"""
+Finalize the repo for a release. Invokes towncrier and bumpversion.
+"""
+
+__requires__ = ['bump2version', 'towncrier', 'jaraco.develop>=7.21']
+
+
+import pathlib
+import re
+import subprocess
+import sys
+
+from jaraco.develop import towncrier
+
+bump_version_command = [
+    sys.executable,
+    '-m',
+    'bumpversion',
+    towncrier.release_kind(),
+]
+
+
+def get_version():
+    cmd = bump_version_command + ['--dry-run', '--verbose']
+    out = subprocess.check_output(cmd, text=True, encoding='utf-8')
+    return re.search('^new_version=(.*)', out, re.MULTILINE).group(1)
+
+
+def update_changelog():
+    towncrier.run('build', '--yes')
+    _repair_changelog()
+
+
+def _repair_changelog():
+    """
+    Workaround for #2666
+    """
+    changelog_fn = pathlib.Path('NEWS.rst')
+    changelog = changelog_fn.read_text(encoding='utf-8')
+    fixed = re.sub(r'^(v[0-9.]+)v[0-9.]+$', r'\1', changelog, flags=re.M)
+    changelog_fn.write_text(fixed, encoding='utf-8')
+    subprocess.check_output(['git', 'add', changelog_fn])
+
+
+def bump_version():
+    cmd = bump_version_command + ['--allow-dirty']
+    subprocess.check_call(cmd)
+
+
+def ensure_config():
+    """
+    Double-check that Git has an e-mail configured.
+    """
+    subprocess.check_output(['git', 'config', 'user.email'])
+
+
+if __name__ == '__main__':
+    print("Cutting release at", get_version())
+    ensure_config()
+    towncrier.check_changes()
+    update_changelog()
+    bump_version()
diff --git a/tools/generate_validation_code.py b/tools/generate_validation_code.py
new file mode 100644
index 0000000000..157693de65
--- /dev/null
+++ b/tools/generate_validation_code.py
@@ -0,0 +1,39 @@
+from __future__ import annotations
+
+import itertools
+import subprocess
+import sys
+from collections.abc import Iterable
+from pathlib import Path
+
+
+def generate_pyproject_validation(dest: Path, schemas: Iterable[Path]) -> bool:
+    """
+    Generates validation code for ``pyproject.toml`` based on JSON schemas and the
+    ``validate-pyproject`` library.
+    """
+    schema_args = (("-t", f"{f.name.partition('.')[0]}={f}") for f in schemas)
+    cmd = [
+        sys.executable,
+        "-m",
+        "validate_pyproject.pre_compile",
+        f"--output-dir={dest}",
+        "--enable-plugins",
+        "setuptools",
+        "distutils",
+        "--very-verbose",
+        *itertools.chain.from_iterable(schema_args),
+    ]
+    subprocess.check_call(cmd)
+    print(f"Validation code generated at: {dest}")
+    return True
+
+
+def main() -> bool:
+    return generate_pyproject_validation(
+        Path("setuptools/config/_validate_pyproject"),
+        schemas=Path("setuptools/config").glob("*.schema.json"),
+    )
+
+
+__name__ == '__main__' and main()
diff --git a/tools/vendored.py b/tools/vendored.py
new file mode 100644
index 0000000000..2525d5fdce
--- /dev/null
+++ b/tools/vendored.py
@@ -0,0 +1,75 @@
+import functools
+import re
+import subprocess
+
+import jaraco.packaging.metadata
+from path import Path
+
+
+def remove_all(paths):
+    for path in paths:
+        path.rmtree() if path.is_dir() else path.remove()
+
+
+def update_vendored():
+    update_setuptools()
+
+
+def clean(vendor):
+    """
+    Remove all files out of the vendor directory except the meta
+    data (as pip uninstall doesn't support -t).
+    """
+    ignored = ['ruff.toml']
+    remove_all(path for path in vendor.glob('*') if path.basename() not in ignored)
+
+
+@functools.lru_cache
+def metadata():
+    return jaraco.packaging.metadata.load('.')
+
+
+def upgrade_core(dep):
+    """
+    Remove 'extra == "core"' from any dependency.
+    """
+    return re.sub('''(;| and) extra == ['"]core['"]''', '', dep)
+
+
+def load_deps():
+    """
+    Read the dependencies from `.[core]`.
+    """
+    return list(map(upgrade_core, metadata().get_all('Requires-Dist')))
+
+
+def min_python():
+    return metadata()['Requires-Python'].removeprefix('>=').strip()
+
+
+def install_deps(deps, vendor):
+    """
+    Install the deps to vendor.
+    """
+    install_args = [
+        'uv',
+        'pip',
+        'install',
+        '--target',
+        str(vendor),
+        '--python-version',
+        min_python(),
+        '--only-binary',
+        ':all:',
+    ] + list(deps)
+    subprocess.check_call(install_args)
+
+
+def update_setuptools():
+    vendor = Path('setuptools/_vendor')
+    deps = load_deps()
+    clean(vendor)
+    install_deps(deps, vendor)
+
+
+__name__ == '__main__' and update_vendored()
diff --git a/towncrier.toml b/towncrier.toml
new file mode 100644
index 0000000000..9505e57db6
--- /dev/null
+++ b/towncrier.toml
@@ -0,0 +1,4 @@
+[tool.towncrier]
+title_format = "{version}"
+# workaround for sphinx-contrib/sphinxcontrib-towncrier#83
+directory = "newsfragments"
diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000000..942e2b9835
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,109 @@
+[testenv]
+description = perform primary checks (tests, style, types, coverage)
+deps =
+	# Ideally all the dependencies should be set as "extras"
+setenv =
+	PYTHONWARNDEFAULTENCODING = 1
+	SETUPTOOLS_ENFORCE_DEPRECATION = {env:SETUPTOOLS_ENFORCE_DEPRECATION:1}
+commands =
+	pytest {posargs}
+usedevelop = True
+extras =
+	test
+	check
+	cover
+	enabler
+	type
+	core
+pass_env =
+	SETUPTOOLS_USE_DISTUTILS
+	SETUPTOOLS_ENFORCE_DEPRECATION
+	PRE_BUILT_SETUPTOOLS_WHEEL
+	PRE_BUILT_SETUPTOOLS_SDIST
+	TIMEOUT_BACKEND_TEST  # timeout (in seconds) for test_build_meta
+	SSH_AUTH_SOCK  # for exercise.py if repo was checked out with ssh
+	windir  # required for test_pkg_resources
+	# honor git config in pytest-perf
+	HOME
+
+[testenv:integration]
+deps = {[testenv]deps}
+extras = {[testenv]extras}
+pass_env =
+	{[testenv]pass_env}
+	DOWNLOAD_PATH
+setenv =
+    PROJECT_ROOT = {toxinidir}
+commands =
+	pytest --integration {posargs:-vv --durations=10} setuptools/tests/integration
+	# use verbose mode by default to facilitate debugging from CI logs
+
+[testenv:diffcov]
+description = run tests and check that diff from main is covered
+deps =
+	{[testenv]deps}
+	diff-cover
+commands =
+	pytest {posargs} --cov-report xml
+	diff-cover coverage.xml --compare-branch=origin/main --html-report diffcov.html
+	diff-cover coverage.xml --compare-branch=origin/main --fail-under=100
+
+[testenv:docs]
+description = build the documentation
+extras =
+	doc
+	test
+changedir = docs
+commands =
+	python -m sphinx -W --keep-going . {toxinidir}/build/html
+	python -m sphinxlint
+
+[testenv:finalize]
+description = assemble changelog and tag a release
+skip_install = True
+deps =
+	towncrier
+	bump2version
+	jaraco.develop >= 7.23
+pass_env = *
+commands =
+	python tools/finalize.py
+
+[testenv:vendor]
+skip_install = True
+deps =
+	path
+	jaraco.packaging
+	# workaround for pypa/pyproject-hooks#192
+	pyproject-hooks!=1.1
+	uv
+commands =
+	vendor: python -m tools.vendored
+
+[testenv:generate-validation-code]
+skip_install = True
+deps =
+	validate-pyproject[all]==0.23
+commands =
+	python -m tools.generate_validation_code
+
+[testenv:release]
+description = publish the package to PyPI and GitHub
+skip_install = True
+deps =
+	build
+	pyproject-hooks!=1.1 # workaround for pypa/setuptools#4333
+	twine>=3
+	jaraco.develop>=7.1
+pass_env =
+	TWINE_PASSWORD
+	GITHUB_TOKEN
+setenv =
+	TWINE_USERNAME = {env:TWINE_USERNAME:__token__}
+commands =
+	python -c "import shutil; shutil.rmtree('dist', ignore_errors=True)"
+	# unset tag_build and tag_date pypa/setuptools#2500
+	python setup.py egg_info -Db "" saveopts
+	python -m build
+	python -m twine upload dist/*
+	python -m jaraco.develop.create-github-release
diff --git a/virtual-python.py b/virtual-python.py
deleted file mode 100755
index 73ef41224c..0000000000
--- a/virtual-python.py
+++ /dev/null
@@ -1,123 +0,0 @@
-"""Create a "virtual" Python installation
-
-Based on a script created by Ian Bicking."""
-
-import sys, os, optparse, shutil
-join = os.path.join
-py_version = 'python%s.%s' % (sys.version_info[0], sys.version_info[1])
-
-def mkdir(path):
-    if not os.path.exists(path):
-        print 'Creating %s' % path
-        os.makedirs(path)
-    else:
-        if verbose:
-            print 'Directory %s already exists'
-
-def symlink(src, dest):
-    if not os.path.exists(dest):
-        if verbose:
-            print 'Creating symlink %s' % dest
-        os.symlink(src, dest)
-    else:
-        print 'Symlink %s already exists' % dest
-
-
-def rmtree(dir):
-    if os.path.exists(dir):
-        print 'Deleting tree %s' % dir
-        shutil.rmtree(dir)
-    else:
-        if verbose:
-            print 'Do not need to delete %s; already gone' % dir
-
-def make_exe(fn):
-    if os.name == 'posix':
-        oldmode = os.stat(fn).st_mode & 07777
-        newmode = (oldmode | 0555) & 07777
-        os.chmod(fn, newmode)
-        if verbose:
-            print 'Changed mode of %s to %s' % (fn, oct(newmode))
-
-def main():
-    if os.name != 'posix':
-        print "This script only works on Unix-like platforms, sorry."
-        return
-
-    parser = optparse.OptionParser()
-
-    parser.add_option('-v', '--verbose', action='count', dest='verbose',
-        default=0, help="Increase verbosity")
-
-    parser.add_option('--prefix', dest="prefix", default='~',
-        help="The base directory to install to (default ~)")
-
-    parser.add_option('--clear', dest='clear', action='store_true',
-        help="Clear out the non-root install and start from scratch")
-
-    parser.add_option('--no-site-packages', dest='no_site_packages',
-        action='store_true',
-        help="Don't copy the contents of the global site-packages dir to the "
-             "non-root site-packages")
-
-    options, args = parser.parse_args()
-    global verbose
-
-    home_dir = os.path.expanduser(options.prefix)
-    lib_dir = join(home_dir, 'lib', py_version)
-    inc_dir = join(home_dir, 'include', py_version)
-    bin_dir = join(home_dir, 'bin')
-
-    if sys.executable.startswith(bin_dir):
-        print 'Please use the *system* python to run this script'
-        return
-
-    verbose = options.verbose
-    assert not args, "No arguments allowed"
-
-    if options.clear:
-        rmtree(lib_dir)
-        rmtree(inc_dir)
-        print 'Not deleting', bin_dir
-
-    prefix = sys.prefix
-    mkdir(lib_dir)
-    stdlib_dir = join(prefix, 'lib', py_version)
-    for fn in os.listdir(stdlib_dir):
-        if fn != 'site-packages':
-            symlink(join(stdlib_dir, fn), join(lib_dir, fn))
-
-    mkdir(join(lib_dir, 'site-packages'))
-    if not options.no_site_packages:
-        for fn in os.listdir(join(stdlib_dir, 'site-packages')):
-            symlink(join(stdlib_dir, 'site-packages', fn),
-                    join(lib_dir, 'site-packages', fn))
-
-    mkdir(inc_dir)
-    stdinc_dir = join(prefix, 'include', py_version)
-    for fn in os.listdir(stdinc_dir):
-        symlink(join(stdinc_dir, fn), join(inc_dir, fn))
-
-    if sys.exec_prefix != sys.prefix:
-        exec_dir = join(sys.exec_prefix, 'lib', py_version)
-        for fn in os.listdir(exec_dir):
-            symlink(join(exec_dir, fn), join(lib_dir, fn))
-
-    mkdir(bin_dir)
-    print 'Copying %s to %s' % (sys.executable, bin_dir)
-    py_executable = join(bin_dir, 'python')
-    if sys.executable != py_executable:
-        shutil.copyfile(sys.executable, py_executable)
-        make_exe(py_executable)
-
-    pydistutils = os.path.expanduser('~/.pydistutils.cfg')
-    if os.path.exists(pydistutils):
-        print 'Please make sure you remove any previous custom paths from'
-        print "your", pydistutils, "file."
-
-    print "You're now ready to download distribute_setup.py, and run"
-    print py_executable, "distribute_setup.py"
-
-if __name__ == '__main__':
-    main()
-