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gh-145098: Use macos-15-intel instead of unstable macos-26-intel#148038

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hugovk merged 1 commit intopython:mainfrom
hugovk:3.15-macos-15-intel
Apr 3, 2026
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gh-145098: Use macos-15-intel instead of unstable macos-26-intel#148038
hugovk merged 1 commit intopython:mainfrom
hugovk:3.15-macos-15-intel

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@hugovk
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@hugovk hugovk commented Apr 3, 2026

The macos-26-intel appears to be unstable, with unexplained hangs:

This seems unrelated to the Tk hangs (#146531) because it also happens when skipping the Tk test on macos-26-intel:

This PR changes the main tests from macos-26-intel to macos-15-intel.

It doesn't change it in jit.yml or tail-call.yml as they seem okay.

@hugovk hugovk merged commit cb76ab3 into python:main Apr 3, 2026
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@hugovk hugovk deleted the 3.15-macos-15-intel branch April 3, 2026 16:23
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webknjaz commented Apr 3, 2026

FTR, we've seen some GHA instability in pip-tools, with macos 26 specifically, just the other day. So that might be a platform issue.

cc @sirosen

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hugovk commented Apr 3, 2026

It appears so, see actions/runner-images#13882 for another report.

sirosen added a commit to sirosen/pip-tools that referenced this pull request Apr 3, 2026
As noted in python/cpython#148038 and cited
related issues, macos-26-intel appears to cause unexpected hangs.

To ensure more reliable CI while GitHub stabilizes the newer runner,
use macos-15-intel for now.
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