CI config for CPython 3.15 support - #252
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Declare 3.14 and 3.15 in package classifiers and add dedicated pip CI jobs so 3.15 stays covered once a newer Python becomes conda-forge's latest. No library code changes were required. Co-authored-by: Olivier Grisel <olivier.grisel@ensta.org>
Add Linux and Windows pip jobs that install conda-forge's python-freethreading interpreter with PYTHON_GIL=0. Mark the OpenMP Cython test helpers as free-threading compatible so importing them does not re-enable the GIL under pytest -W error. Co-authored-by: Olivier Grisel <olivier.grisel@ensta.org>
Rename the 3.15 pip jobs to pyrc_pip and pyrc_ft_pip. Enable conda-forge/label/python_rc so python=3.15 can resolve, select python-gil or python-freethreading, and keep numpy/scipy on pip. Co-authored-by: Olivier Grisel <olivier.grisel@ensta.org>
joblib#250 already marks the OpenMP test helpers as free-threading compatible in the pyx files, so restore the setup scripts to the plain compiler_directives dicts. Use FREETHREADING=1 for the RC free-threaded jobs to match the existing 3.14 CI flag. Co-authored-by: Olivier Grisel <olivier.grisel@ensta.org>
Drop the Windows pyrc_pip and pyrc_ft_pip matrix entries so the conda-forge Python RC coverage stays on ubuntu-latest. Co-authored-by: Olivier Grisel <olivier.grisel@ensta.org>
The matrix keys become job-wide env vars, so PYTHON_GIL=0 also applied to the GIL-enabled base conda interpreter and aborted the Setup conda step. The free-threaded build already runs with the GIL disabled, and run_tests.sh asserts that. Co-authored-by: Olivier Grisel <olivier.grisel@ensta.org>
ogrisel
marked this pull request as ready for review
September 18, 2026 13:11
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@itamarst the free-threading CPython 3.15 runs seems to pass as intended: |
ogrisel
commented
Sep 18, 2026
ogrisel
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Sep 18, 2026
Co-authored-by: Olivier Grisel <olivier.grisel@ensta.org>
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Fixes #251.
This also includes a free-threading build.
The package metadata are updated to advertise Python 3.14 and Python 3.15 support.