Use latest Pyodide version for each python version #17372
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CC @hoodmane |
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The implementation here looks a bit different than the GraalPy and PyPy ones, e.g., they do something like # Only keep the latest pypy version of each arch/platform
if (python_version, arch, platform) not in results:
results[(python_version, arch, platform)] = downloadIt's not like that's beautiful Python, but it might be nice for the pattern to be consistent? What do you think? |
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@zanieb Sounds reasonable. I update the code to make it look similar to other finders. |
zanieb
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Jan 17, 2026
This MR contains the following updates: | Package | Update | Change | |---|---|---| | [astral-sh/uv](https://github.com/astral-sh/uv) | patch | `0.9.24` → `0.9.26` | 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> ### [`v0.9.26`](https://github.com/astral-sh/uv/blob/HEAD/CHANGELOG.md#0926) [Compare Source](astral-sh/uv@0.9.25...0.9.26) Released on 2026-01-15. ##### Python - Add CPython 3.15.0a5 ##### Enhancements - Add a hint to update uv when a managed Python download is not found ([#​17461](astral-sh/uv#17461)) - Improve cache initialization failure error message ([#​17469](astral-sh/uv#17469)) - Improve error message for abi3 wheels on free-threaded Python ([#​17442](astral-sh/uv#17442)) - Add support for `--no-sources-package` ([#​14910](astral-sh/uv#14910)) ##### Preview features - Add `METADATA.json` and `WHEEL.json` in uv build backend ([#​15510](astral-sh/uv#15510)) - Add support for GCS request signing ([#​17474](astral-sh/uv#17474)) - Adjust the process ulimit to the maximum allowed on startup ([#​17464](astral-sh/uv#17464)) ##### Bug fixes - Lock to avoid concurrent refresh of pyx tokens ([#​17479](astral-sh/uv#17479)) ##### Documentation - Add linting and formatting instructions to the CONTRIBUTING guide ([#​17470](astral-sh/uv#17470)) - Avoid rendering `pyproject.toml` examples for more system-level settings ([#​17462](astral-sh/uv#17462)) ### [`v0.9.25`](https://github.com/astral-sh/uv/blob/HEAD/CHANGELOG.md#0925) [Compare Source](astral-sh/uv@0.9.24...0.9.25) Released on 2026-01-13. ##### Python - Add CPython 3.15.0a4 - Upgrade Tcl/Tk used by CPython to 9.0 ##### Enhancements - Add `--compile-bytecode` to `uv python install` and `uv python upgrade` to compile the standard library ([#​17088](astral-sh/uv#17088)) - Allow disabling `exclude-newer` per package ([#​16854](astral-sh/uv#16854)) - Broadcast `WM_SETTINGCHANGE` on `uv tool update-shell` ([#​17404](astral-sh/uv#17404)) ##### Preview features - Detect workspace from `uv run` target ([#​17423](astral-sh/uv#17423)) ##### Bug fixes - Avoid unwrapping size for file responses ([#​17434](astral-sh/uv#17434)) - Use keyring authentication when retrieving `tool@latest` version ([#​17448](astral-sh/uv#17448)) - Use latest Pyodide version for each python version ([#​17372](astral-sh/uv#17372)) - Improve trampoline file handle closing ([#​17374](astral-sh/uv#17374)) - Fix error message when installing musl python on armv7 ([#​17213](astral-sh/uv#17213)) </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. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this MR, check this box --- This MR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0Mi44MC4xIiwidXBkYXRlZEluVmVyIjoiNDIuODEuOCIsInRhcmdldEJyYW5jaCI6Im1haW4iLCJsYWJlbHMiOlsiUmVub3ZhdGUgQm90IiwiYXV0b21hdGlvbjpib3QtYXV0aG9yZWQiLCJkZXBlbmRlbmN5LXR5cGU6OnBhdGNoIl19-->
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Summary
This changes how the
download-metadata.jsonfile is generated for Pyodide.Previously, if we have a different Pyodide version with a same Python version, the older Pyodide version is selected.
For example, say we have
then, pyodide 0.28.3 was stored in
download-metadata.jsonas we iterate in decending order with overwriting the value that was previously written.I fixed it by picking up the latest Pyodide version for each Python version.
Test Plan
Ran
uv run -- crates/uv-python/fetch-download-metadata.pylocally, and verified the output: