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Merged
nsmith- merged 4 commits into from
Feb 27, 2026
Merged

build: add freethreaded python ci and wheels #284

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6acc379
wheels and tests for 3.14t
lgray Feb 27, 2026
2d1dc99
remove -Xgil=0 in parallel testing
lgray Feb 27, 2026
56bb5b1
Merge branch 'master' into patch-5
lgray Feb 27, 2026
8a42229
fix typo
lgray Feb 27, 2026
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9 changes: 7 additions & 2 deletions .github/workflows/ci.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,7 @@ jobs:
strategy:
fail-fast: false
matrix:
python-version: ["3.9", "3.13", "3.14"]
python-version: ["3.9", "3.13", "3.14", "3.14t"]
runs-on: [ubuntu-latest, macos-latest, windows-latest, windows-11-arm]
exclude:
- python-version: "3.9"
Expand All @@ -54,7 +54,12 @@ jobs:
run: python -m pip install . --group test

- name: Test package
run: pytest
if: ${{ !endsWith(matrix.python-version , 't') }}
run: python -m pytest -ra

- name: Test package (parallel)
if: endsWith(matrix.python-version , 't')
run: python -m pytest -ra --parallel-threads=16 --iterations=10
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@ikrommyd ikrommyd Feb 27, 2026 •
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Ah, apologies for seeing these one by one, but one final thought here. It is now doing only parallel testing in 3.14t. We should probably do normal testing on all of them and parallel testing as an extra in free-threaded python. (just no if condition for python -m pytest -ra) basically.

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@lgray lgray Feb 27, 2026

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The parallel tests are strictly more stringent since we have deterministic outcomes here. Further testing is unnecessary.

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@ikrommyd ikrommyd Feb 27, 2026 •
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What I would try to catch with this is a pybind11 or cpython bug that isn't there in free-threaded mode in 3.14, that's all.

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@lgray lgray Feb 27, 2026 •
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That sounds like tests the python core team would/should do, not us. The code on our side is the same.


checkroot:
name: Check ROOT bindings
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3 changes: 2 additions & 1 deletion pyproject.toml
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Expand Up @@ -58,6 +58,7 @@ test = [
"requests",
"scipy",
"pytest >=6.0",
"pytest-run-parallel",
"awkward >=2.2.2",
"dask-awkward >=2024.1.1",
]
Expand Down Expand Up @@ -143,7 +144,7 @@ BUILD_DEMO = "OFF"
write_to = "src/correctionlib/version.py"

[tool.cibuildwheel]
skip = ["cp314t-*", "cp3{9,10}*-win_arm64"]
skip = ["cp3{9,10}*-win_arm64"]
test-groups = ["test"]
test-command = "python -m pytest {package}/tests"
test-skip = ["*-musllinux_*", "cp3{10,11,12}-win32", "cp*-win_arm64"]
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2 changes: 1 addition & 1 deletion src/python.cc
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Expand Up @@ -85,7 +85,7 @@ namespace {
return output;
}
}
PYBIND11_MODULE(_core, m) {
PYBIND11_MODULE(_core, m, py::mod_gil_not_used()) {
m.doc() = "python binding for corrections evaluator";

py::class_<Variable>(m, "Variable")
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