package in a namespace from pip fails to lock

[mskoenz]

I checked the diagnose.

Issue description

installing a package from pip with a namespace, i.e. fsc.export results in locking-failure, since (I assume) pipenv looks for fsc-export on https://pypi.org/simple and not for fsc.export (which is available). This package is not a pre-release.

Expected result

That it would work just fine, like pip install fsc.export

Actual result

Creating a Pipfile for this project…
Installing fsc.export…
⠋ Installing...Installing 'fsc.export'
$ ['/Users/mskoenz/.virtualenvs/hello-vT9ljSkH/bin/pip', 'install', '--verbose', '--upgrade', '"fsc.export"', '-i', 'https://pypi.org/simple']

Adding fsc.export to Pipfile's [packages]…
✔ Installation Succeeded
Pipfile.lock not found, creating…
Locking [dev-packages] dependencies…
Locking [packages] dependencies…
✘ Locking Failed!
Using pip: -i https://pypi.org/simple
Using pip: -i https://pypi.org/simple
Using pip: -i https://pypi.org/simple

                          ROUND 1
Current constraints:
  fsc-export

Finding the best candidates:
Traceback (most recent call last):
  File "/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/lib/python3.7/site-packages/pipenv/utils.py", line 385, in resolve
    results = self.resolver.resolve(max_rounds=environments.PIPENV_MAX_ROUNDS)
  File "/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/lib/python3.7/site-packages/pipenv/patched/piptools/resolver.py", line 102, in resolve
    has_changed, best_matches = self._resolve_one_round()
  File "/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/lib/python3.7/site-packages/pipenv/patched/piptools/resolver.py", line 198, in _resolve_one_round
    best_matches = {self.get_best_match(ireq) for ireq in constraints}
  File "/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/lib/python3.7/site-packages/pipenv/patched/piptools/resolver.py", line 198, in <setcomp>
    best_matches = {self.get_best_match(ireq) for ireq in constraints}
  File "/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/lib/python3.7/site-packages/pipenv/patched/piptools/resolver.py", line 263, in get_best_match
    best_match = self.repository.find_best_match(ireq, prereleases=self.prereleases)
  File "/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/lib/python3.7/site-packages/pipenv/patched/piptools/repositories/pypi.py", line 175, in find_best_match
    raise NoCandidateFound(ireq, all_candidates, self.finder)
pipenv.patched.piptools.exceptions.NoCandidateFound: Could not find a version that matches fsc-export
No versions found
Was https://pypi.org/simple reachable?

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/lib/python3.7/site-packages/pipenv/resolver.py", line 126, in <module>
    main()
  File "/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/lib/python3.7/site-packages/pipenv/resolver.py", line 119, in main

    parsed.requirements_dir, parsed.packages)
  File "/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/lib/python3.7/site-packages/pipenv/resolver.py", line 85, in _main
    requirements_dir=requirements_dir,
  File "/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/lib/python3.7/site-packages/pipenv/resolver.py", line 69, in resolve
    req_dir=requirements_dir
  File "/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/lib/python3.7/site-packages/pipenv/utils.py", line 726, in resolve_deps
    req_dir=req_dir,
  File "/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/lib/python3.7/site-packages/pipenv/utils.py", line 480, in actually_resolve_deps
    resolved_tree = resolver.resolve()
  File "/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/lib/python3.7/site-packages/pipenv/utils.py", line 395, in resolve
    raise ResolutionFailure(message=str(e))
pipenv.exceptions.ResolutionFailure: ERROR: ERROR: Could not find a version that matches fsc-export
No versions found
Was https://pypi.org/simple reachable?
Using pip: -i https://pypi.org/simple
Using pip: -i https://pypi.org/simple

                          ROUND 1
Current constraints:
  fsc-export
Finding the best candidates:
Traceback (most recent call last):
  File "/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/lib/python3.7/site-packages/pipenv/utils.py", line 385, in resolve
    results = self.resolver.resolve(max_rounds=environments.PIPENV_MAX_ROUNDS)

  File "/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/lib/python3.7/site-packages/pipenv/patched/piptools/resolver.py", line 102, in resolve
    has_changed, best_matches = self._resolve_one_round()
  File "/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/lib/python3.7/site-packages/pipenv/patched/piptools/resolver.py", line 198, in _resolve_one_round
    best_matches = {self.get_best_match(ireq) for ireq in constraints}
  File "/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/lib/python3.7/site-packages/pipenv/patched/piptools/resolver.py", line 198, in <setcomp>
    best_matches = {self.get_best_match(ireq) for ireq in constraints}
  File "/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/lib/python3.7/site-packages/pipenv/patched/piptools/resolver.py", line 263, in get_best_match
    best_match = self.repository.find_best_match(ireq, prereleases=self.prereleases)
  File "/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/lib/python3.7/site-packages/pipenv/patched/piptools/repositories/pypi.py", line 175, in find_best_match
    raise NoCandidateFound(ireq, all_candidates, self.finder)
pipenv.patched.piptools.exceptions.NoCandidateFound: Could not find a version that matches fsc-export
No versions found
Was https://pypi.org/simple reachable?

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/lib/python3.7/site-packages/pipenv/resolver.py", line 126, in <module>
    main()
  File "/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/lib/python3.7/site-packages/pipenv/resolver.py", line 119, in main
    parsed.requirements_dir, parsed.packages)
  File "/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/lib/python3.7/site-packages/pipenv/resolver.py", line 85, in _main
    requirements_dir=requirements_dir,
  File "/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/lib/python3.7/site-packages/pipenv/resolver.py", line 69, in resolve
    req_dir=requirements_dir
  File "/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/lib/python3.7/site-packages/pipenv/utils.py", line 726, in resolve_deps
    req_dir=req_dir,
  File "/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/lib/python3.7/site-packages/pipenv/utils.py", line 480, in actually_resolve_deps
    resolved_tree = resolver.resolve()
  File "/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/lib/python3.7/site-packages/pipenv/utils.py", line 395, in resolve
    raise ResolutionFailure(message=str(e))
pipenv.exceptions.ResolutionFailure: ERROR: ERROR: Could not find a version that matches fsc-export
No versions found
Was https://pypi.org/simple reachable?

Steps to replicate

in a completely fresh folder (no Pipfile), run:
pipenv install fsc.export

---

$ pipenv --support

Pipenv version: '2018.11.26'

Pipenv location: '/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/lib/python3.7/site-packages/pipenv'

Python location: '/Users/mskoenz/.virtualenvs/tmp-92509552f3b388/bin/python3.7'

Python installations found:

• 3.7.0: /Users/mskoenz/.virtualenvs/tmp-92509552f3b388/bin/python3
• 3.7.0: /Users/mskoenz/.pyenv/versions/3.7.0/bin/python3
• 3.7.0: /Users/mskoenz/.pyenv/versions/3.7.0/bin/python3.7m
• 3.7.0: /usr/local/bin/python3
• 3.7.0: /usr/local/bin/python3.7m
• 3.6.6: /Users/mskoenz/.pyenv/versions/3.6.6/bin/python3
• 3.6.6: /Users/mskoenz/.pyenv/versions/3.6.6/bin/python3.6m
• 3.5.6: /Users/mskoenz/.pyenv/versions/3.5.6/bin/python3
• 3.5.6: /Users/mskoenz/.pyenv/versions/3.5.6/bin/python3.5m
• 3.4.9: /Users/mskoenz/.pyenv/versions/3.4.9/bin/python3
• 3.4.9: /Users/mskoenz/.pyenv/versions/3.4.9/bin/python3.4m
• 2.7.15: /Users/mskoenz/.pyenv/versions/2.7.15/bin/python
• 2.7.15: /usr/local/bin/python
• 2.7.15: /usr/local/bin/pythonw
• 2.7.10: /Users/mskoenz/.pyenv/versions/2.7.10/bin/python
• 2.7.10: /usr/bin/python
• 2.7.10: /usr/bin/pythonw
• 2.7.10: /usr/bin/python2.7

PEP 508 Information:

{'implementation_name': 'cpython',
 'implementation_version': '3.7.0',
 'os_name': 'posix',
 'platform_machine': 'x86_64',
 'platform_python_implementation': 'CPython',
 'platform_release': '18.2.0',
 'platform_system': 'Darwin',
 'platform_version': 'Darwin Kernel Version 18.2.0: Fri Oct  5 19:41:49 PDT '
                     '2018; root:xnu-4903.221.2~2/RELEASE_X86_64',
 'python_full_version': '3.7.0',
 'python_version': '3.7',
 'sys_platform': 'darwin'}

System environment variables:

• CPLUS_INCLUDE_PATH
• LDFLAGS
• SSH_AGENT_PID
• TERM_PROGRAM
• VIRTUALENVWRAPPER_PROJECT_FILENAME
• VIRTUALENVWRAPPER_SCRIPT
• PYENV_ROOT
• PIP_PYTHON_PATH
• TERM
• SHELL
• TMPDIR
• CPPFLAGS
• Apple_PubSub_Socket_Render
• PERL5LIB
• OLDPWD
• PERL_MB_OPT
• PYENV_VERSION
• USER
• COMMAND_MODE
• PYENV_DIR
• SSH_AUTH_SOCK
• __CF_USER_TEXT_ENCODING
• VIRTUAL_ENV
• WORKON_HOME
• VIRTUALENVWRAPPER_PYTHON
• PIPENV_ACTIVE
• PATH
• VIRTUALENVWRAPPER_HOOK_DIR
• C_INCLUDE_PATH
• PWD
• LANG
• PYENV_HOOK_PATH
• XPC_FLAGS
• PS1
• PYTHONDONTWRITEBYTECODE
• XPC_SERVICE_NAME
• HOME
• SHLVL
• PYENV_SHELL
• PERL_LOCAL_LIB_ROOT
• PIP_SHIMS_BASE_MODULE
• LOGNAME
• VIRTUALENVWRAPPER_WORKON_CD
• SECURITYSESSIONID
• PYENV_VIRTUALENVWRAPPER_PREFER_PYVENV
• PERL_MM_OPT
• _
• PIP_DISABLE_PIP_VERSION_CHECK
• PYTHONFINDER_IGNORE_UNSUPPORTED

Pipenv–specific environment variables:

• PIPENV_ACTIVE: 1

Debug–specific environment variables:

• PATH: /Users/mskoenz/.virtualenvs/tmp-92509552f3b388/bin:/Users/mskoenz/perl5/bin:/Users/mskoenz/.pyenv/shims:/usr/local/opt/sqlite/bin:/usr/local/opt/coreutils/libexec/gnubin:/Users/mskoenz/.pyenv/versions/3.7.0/bin:/usr/local/Cellar/pyenv/1.2.7/libexec:/Users/mskoenz/.pyenv/plugins/pyenv-install-latest/bin:/Users/mskoenz/perl5/bin:/Users/mskoenz/.pyenv/shims:/usr/local/opt/sqlite/bin:/usr/local/opt/coreutils/libexec/gnubin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Library/TeX/texbin:/Users/mskoenz/perl5/bin:/Users/mskoenz/.pyenv/shims:/usr/local/opt/sqlite/bin:/usr/local/opt/coreutils/libexec/gnubin
• SHELL: /bin/bash
• LANG: en_US.UTF-8
• PWD: /Users/mskoenz/hello
• VIRTUAL_ENV: /Users/mskoenz/.virtualenvs/tmp-92509552f3b388

---

Contents of Pipfile ('/Users/mskoenz/hello/Pipfile'):

[[source]]
name = "pypi"
url = "https://pypi.org/simple"
verify_ssl = true

[dev-packages]

[packages]
fsc-export = "*"

[requires]
python_version = "3.7"

[pipenv]
allow_prereleases = true

[frostming]

Workaround

Change the package name in Pipfile from fsc-export to "fsc.export", note the quotes can't be omitted.

[packages]
"fsc.export" = "*"

And do pipenv lock, everything works fine.

[mskoenz]

Alright, that worked, thx!

But I would assume that every package that uses . instead of - on pipy has the same issue, and there are many such projects. If convenient and possible, it would be nice to have that deduction automatically done.

Thx for your project!

[frostming]

@mskoenz That requires upstream fix pypa/pip#5870

[techalchemy]

We used to quote this on write, we need to restore that behavior