Add support for dynamic musl Python distributions on x86-64 Linux #12121

zanieb · 2025-03-11T20:59:22Z

Following the upstream release and #12120, removes gating preventing installation of the managed musl Python versions.

Of note

The filtering of musl Python distributions has moved from the Rust runtime to the metadata fetcher
The filtering is now conditional on the PBS release date, removing all old static musl distributions
We could support the +static musl downloads in the future; right now, they are deprioritized when selecting a variant
I added test to CI which uses Alpine and installs numpy

zanieb · 2025-03-11T21:27:52Z

crates/uv/src/commands/python/install.rs

@@ -58,10 +58,11 @@ impl InstallRequest {
        let download = match ManagedPythonDownload::from_request(&download_request) {
            Ok(download) => download,
            Err(downloads::Error::NoDownloadFound(request))
-                if request.libc().is_some_and(Libc::is_musl) =>
+                if request.libc().is_some_and(Libc::is_musl)
+                    && request.arch().is_some_and(Arch::is_arm) =>


We still don't provide ARM distributions

geofft

LGTM. download-metadata.json only has old musl distributions removed and everything else unchanged.

geofft · 2025-03-11T22:57:01Z

.github/workflows/ci.yml

+        run: |
+          # Overwrite the 3.13.0 pin from the project, there are not functional
+          # musl distributions for it
+          ./uv python pin 3.13


Could this potentially affect real-world users?

Yes, but it'll just say "No Python download found for request" (as we do for non-musl distributions) instead of the special case "uv does not support musl downloads yet"

konstin

🎉

This MR contains the following updates: | Package | Update | Change | |---|---|---| | [astral-sh/uv](https://github.com/astral-sh/uv) | patch | `0.6.5` -> `0.6.9` | MR created with the help of [el-capitano/tools/renovate-bot](https://gitlab.com/el-capitano/tools/renovate-bot). **Proposed changes to behavior should be submitted there as MRs.** --- ### Release Notes <details> <summary>astral-sh/uv (astral-sh/uv)</summary> ### [`v0.6.9`](https://github.com/astral-sh/uv/blob/HEAD/CHANGELOG.md#069) [Compare Source](astral-sh/uv@0.6.8...0.6.9) ##### Enhancements - Use `keyring --mode creds` when `authenticate = "always"` ([#12316](astral-sh/uv#12316)) - Fail with specific error message when no password is present and `authenticate = "always"` ([#12313](astral-sh/uv#12313)) ##### Bug fixes - Add boolish value parser for `UV_MANAGED_PYTHON` flags ([#12345](astral-sh/uv#12345)) - Make deserialization non-fatal when assessing source tree revisions ([#12319](astral-sh/uv#12319)) - Use resolver-returned wheel over alternate cached wheel ([#12301](astral-sh/uv#12301)) ##### Documentation - Add experimental `--torch-backend` to the PyTorch guide ([#12317](astral-sh/uv#12317)) - Fix `#keyring-provider` references in alternative index docs ([#12315](astral-sh/uv#12315)) - Fix `--directory` path in examples ([#12165](astral-sh/uv#12165)) ##### Preview changes - Automatically infer the PyTorch index via `--torch-backend=auto` ([#12070](astral-sh/uv#12070)) ### [`v0.6.8`](https://github.com/astral-sh/uv/blob/HEAD/CHANGELOG.md#068) [Compare Source](astral-sh/uv@0.6.7...0.6.8) ##### Enhancements - Add support for enabling all groups by default with `default-groups = "all"` ([#12289](astral-sh/uv#12289)) - Add simpler `--managed-python` and `--no-managed-python` flags for toggling Python preferences ([#12246](astral-sh/uv#12246)) ##### Performance - Avoid allocations for default cache keys ([#12063](astral-sh/uv#12063)) ##### Bug fixes - Allow local version mismatches when validating lockfile ([#12285](astral-sh/uv#12285)) - Allow owned string when deserializing `requires-python` ([#12278](astral-sh/uv#12278)) - Make cache errors non-fatal in `Planner::build` ([#12281](astral-sh/uv#12281)) ### [`v0.6.7`](https://github.com/astral-sh/uv/blob/HEAD/CHANGELOG.md#067) [Compare Source](astral-sh/uv@0.6.6...0.6.7) ##### Python - Add CPython 3.14.0a6 - Fix regression where extension modules would use wrong `CXX` compiler on Linux - Enable FTS3 enhanced query syntax for SQLite See the [`python-build-standalone` release notes](https://github.com/astral-sh/python-build-standalone/releases/tag/20250317) for more details. ##### Enhancements - Add support for `-c` constraints in `uv add` ([#12209](astral-sh/uv#12209)) - Add support for `--global` default version in `uv python pin` ([#12115](astral-sh/uv#12115)) - Always reinstall local source trees passed to `uv pip install` ([#12176](astral-sh/uv#12176)) - Render token claims on publish permission error ([#12135](astral-sh/uv#12135)) - Add pip-compatible `--group` flag to `uv pip install` and `uv pip compile` ([#11686](astral-sh/uv#11686)) ##### Preview features - Avoid creating duplicate directory entries in built wheels ([#12206](astral-sh/uv#12206)) - Allow overriding module names for editable builds ([#12137](astral-sh/uv#12137)) ##### Performance - Avoid replicating core-metadata field on `File` struct ([#12159](astral-sh/uv#12159)) ##### Bug fixes - Add `src` to default cache keys ([#12062](astral-sh/uv#12062)) - Discard insufficient fork markers ([#10682](astral-sh/uv#10682)) - Ensure `python pin --global` creates parent directories if missing ([#12180](astral-sh/uv#12180)) - Fix GraalPy abi tag parsing and discovery ([#12154](astral-sh/uv#12154)) - Remove extraneous script packages in `uv sync --script` ([#12158](astral-sh/uv#12158)) - Remove redundant `activate.bat` output ([#12160](astral-sh/uv#12160)) - Avoid subsequent index hint when no versions are available on the first index ([#9332](astral-sh/uv#9332)) - Error on lockfiles with incoherent wheel versions ([#12235](astral-sh/uv#12235)) ##### Rust API - Update `BaseClientBuild` to accept custom proxies ([#12232](astral-sh/uv#12232)) ##### Documentation - Make testpypi index explicit in example snippet ([#12148](astral-sh/uv#12148)) - Reverse and format the archived changelogs ([#12099](astral-sh/uv#12099)) - Use consistent commas around i.e. and e.g. ([#12157](astral-sh/uv#12157)) - Fix typos in MRE docs ([#12198](astral-sh/uv#12198)) - Fix double space typo ([#12171](astral-sh/uv#12171)) ### [`v0.6.6`](https://github.com/astral-sh/uv/blob/HEAD/CHANGELOG.md#066) [Compare Source](astral-sh/uv@0.6.5...0.6.6) ##### Python - Add support for dynamic musl Python distributions on x86-64 Linux ([#12121](astral-sh/uv#12121)) - Allow the experimental JIT to be enabled at runtime on Python 3.13 and 3.14 on Linux - Upgrade the build toolchain to LLVM 20, improving performance See the [`python-build-standalone` release notes](https://github.com/astral-sh/python-build-standalone/releases/tag/20250311) for more details. ##### Enhancements - Add `--marker` flag to `uv add` ([#12012](astral-sh/uv#12012)) - Allow overriding module name for uv build backend ([#11884](astral-sh/uv#11884)) - Sync latest Python releases ([#12120](astral-sh/uv#12120)) - Use 'Upload' instead of 'Download' in publish reporter ([#12029](astral-sh/uv#12029)) - Add `[index].authenticate` allowing authentication to be required on an index ([#11896](astral-sh/uv#11896)) - Add support for Windows legacy scripts in `uv tool run` ([#12079](astral-sh/uv#12079)) - Propagate conflicting dependency groups when using `include-group` ([#12005](astral-sh/uv#12005)) - Show ambiguous requirements when `uv add` failed ([#12106](astral-sh/uv#12106)) ##### Performance - Cache workspace discovery ([#12096](astral-sh/uv#12096)) - Insert dependencies into fork state prior to fetching metadata ([#12057](astral-sh/uv#12057)) - Remove some allocations from `uv-auth` ([#12077](astral-sh/uv#12077)) ##### Bug fixes - Avoid considering `PATH` updated when the `export` is commented in the shellrc ([#12043](astral-sh/uv#12043)) - Fix `uv publish` retry on network failures ([#12041](astral-sh/uv#12041)) - Use a sized stream in `uv publish` to comply with WSGI PyPI server constraints ([#12111](astral-sh/uv#12111)) - Fix `uv python install --reinstall` when the version was not previously installed ([#12124](astral-sh/uv#12124)) ##### Preview features - Fix `uv_build` invocation ([#12058](astral-sh/uv#12058)) ##### Documentation - Quote versions string in `python-versions.md` ([#12112](astral-sh/uv#12112)) - Fix tool concept page headings ([#12053](astral-sh/uv#12053)) - Update the `[index].authenticate` docs ([#12102](astral-sh/uv#12102)) - Update versioning policy ([#11666](astral-sh/uv#11666)) </details> --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever MR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this MR and you won't be reminded about this update again. --- - [ ] If you want to rebase/retry this MR, check this box --- This MR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).

zanieb added 2 commits March 11, 2025 15:59

Remove filtering of musl Python distributions

ef9fa7d

Add a musl smoke est

d32795c

zanieb temporarily deployed to uv-test-publish March 11, 2025 21:04 — with GitHub Actions Inactive

zanieb added 2 commits March 11, 2025 16:14

Remove special case error for missing musl downloads

5781e2c

Update aarch64 error message

4796212

zanieb changed the title ~~Remove filtering of musl Python distributions~~ Add support for dynamic musl Python distributions on x86-64 Linux Mar 11, 2025

zanieb commented Mar 11, 2025

View reviewed changes

zanieb temporarily deployed to uv-test-publish March 11, 2025 21:28 — with GitHub Actions Inactive

Drop old musl releases

828e668

zanieb temporarily deployed to uv-test-publish March 11, 2025 21:57 — with GitHub Actions Inactive

Allow any 3.13 version

846c0eb

zanieb force-pushed the zb/musl branch from 1818a15 to 846c0eb Compare March 11, 2025 22:03

Format

e13f35b

zanieb temporarily deployed to uv-test-publish March 11, 2025 22:05 — with GitHub Actions Inactive

Drop bash shell completions from test

b6c30ec

zanieb marked this pull request as ready for review March 11, 2025 22:12

zanieb requested a review from charliermarsh March 11, 2025 22:12

zanieb temporarily deployed to uv-test-publish March 11, 2025 22:14 — with GitHub Actions Inactive

geofft approved these changes Mar 11, 2025

View reviewed changes

zanieb merged commit 553bccc into main Mar 11, 2025
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zanieb deleted the zb/musl branch March 11, 2025 23:14

This was referenced Mar 12, 2025

No interpreter found for Python 3.11 #11307

Closed

provide Python builds for linux-aarch64-musl #6890

Open

setup-uv incompatible with alpine astral-sh/setup-uv#278

Closed

BrewTestBot mentioned this pull request Mar 12, 2025

uv 0.6.6 Homebrew/homebrew-core#210614

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konstin reviewed Mar 12, 2025

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charliermarsh mentioned this pull request Mar 18, 2025

Confused about status of linux-aarch64-musl #12286

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Wingysam mentioned this pull request Mar 19, 2025

docs: Remove note about musl binary distributions #12323

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Add support for dynamic musl Python distributions on x86-64 Linux #12121

Add support for dynamic musl Python distributions on x86-64 Linux #12121

zanieb commented Mar 11, 2025 •

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Add support for dynamic musl Python distributions on x86-64 Linux #12121

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