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GeezerVison is showing github.com — CI: run the Python 3.9 job on ubuntu-24.04 by maartenbreddels · Pull Request #790 · MagicStack/uvloop

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@maartenbreddels

@maartenbreddels maartenbreddels commented Nov 9, 2026

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ubuntu-latest is now Ubuntu 26.04, and actions/setup-python has no Python 3.9 build for it.
The test (3.9, ubuntu-latest) job fails in setup, before any uvloop code is built:

The version '3.9' with architecture 'x64' was not found for Ubuntu 26.04.

So every PR now shows a red check (for example #789).
This PR runs only that job on ubuntu-24.04. All other jobs stay on ubuntu-latest.

Python 3.9 is end-of-life since October 2025. If you prefer to drop 3.9 instead, I can change this PR to do that.

Disclosure: written with Claude Code.

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@maartenbreddels @claude
CI: run the Python 3.9 job on ubuntu-24.04
ed1f78c 
ubuntu-latest is now Ubuntu 26.04, and actions/setup-python has no
Python 3.9 build for it. The 3.9 ubuntu job fails in setup before any
uvloop code is built, so every PR shows a red check.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
@maartenbreddels maartenbreddels mentioned this pull request Nov 9, 2026
Fix call_soon_threadsafe() racing with close() on free-threaded Python #789
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@maartenbreddels
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