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Pin the CI interpreter and its ABI in the update-env step #632

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Pin the CI interpreter and its ABI in the update-env step #632

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Pin the CI interpreter and its ABI in the update-env step
eriknw Aug 27, 2026
7f0c762
Merge branch 'main' into ci-pin-python-gil
eriknw Sep 18, 2026
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12 changes: 12 additions & 0 deletions .github/workflows/test_and_build.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -203,6 +203,17 @@ jobs:
echo "versions: np${npver} sp${spver} pd${pdver} ak${akver} nx${nxver} numba${numbaver} yaml${yamlver} sparse${sparsever} psg${psgver}"

set -x # echo on
# conda-forge ships two ABIs for CPython 3.13+, and this step did not
# restate ``python``, so the solver was free to replace the interpreter
# setup-miniconda installed: a 3.14 draw on ubuntu-24.04-arm became
# 3.14.7-*_cp314t, where pandas 2.3 raises a GIL RuntimeWarning that
# filterwarnings=error turns into a collection error. Restating the
# version pins the interpreter and ``python-gil`` pins python_abi to
# the GIL build; setup-miniconda's own ``python-version`` above is
# equally ABI-free, so this covers that step too.
# python-suitesparse-graphblas pins the same pair in
# .github/workflows/test.yml, and asks for python-freethreading on the
# matrix entries that want the other ABI.
$(command -v mamba || command -v conda) install -c nodefaults \
packaging pip pytest coverage pytest-randomly cffi donfig tomli c-compiler make \
pyyaml${yamlver} ${sparse} pandas${pdver} scipy${spver} numpy${npver} ${awkward} \
Expand All @@ -212,6 +223,7 @@ jobs:
${{ steps.sourcetype.outputs.selected == 'upstream' && 'cython' || '' }} \
${{ steps.sourcetype.outputs.selected != 'wheel' && '"graphblas>=7.4"' || '' }} \
${{ contains(steps.pyver.outputs.selected, 'pypy') && 'pypy' || '' }} \
${{ !contains(steps.pyver.outputs.selected, 'pypy') && format('python={0} python-gil', steps.pyver.outputs.selected) || '' }} \
${{ matrix.os == 'windows-latest' && 'cmake' || 'm4' }} \
# ${{ matrix.os != 'windows-latest' && 'pytest-forked' || '' }} # to investigate crashes
- name: Build extension module
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