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Fix ABI3T feature selection for free-threaded Python - #622
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jameshilliard wants to merge 2 commits into
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jameshilliard wants to merge 2 commits into
jameshilliard wants to merge 2 commits into
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Build the ABI3 example on Python 3.11 and test it on the latest Python. Building on 3.15 produces platform-qualified suffixes that Python 3.11 cannot import. Use the stdlib venv backend for GraalPy on Windows, where virtualenv fails to import IO_REPARSE_TAG_MOUNT_POINT from stat. Test the Zig-built wheel in the Python 3.10 container using the existing QEMU setup action. This avoids installing Ubuntu packages under emulation, where the libc-bin post-installation step crashes.
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py_limited_api=cp315currently enablespyo3/abi3-py315even when targeting free-threaded Python. With recent setuptools, the extension receives an ABI3T filename and stable-ABI wheel tags, but PyO3 falls back to a version-specific free-threaded ABI.Use
Py_GIL_DISABLEDfrom the target sysconfig data to select PyO3'sabi3tfeatures for free-threaded builds. Preserve ABI3 selection for GIL-enabled builds and leave explicit extension settings unchanged.Add regression tests for both ABI choices, unset configuration, explicit extension settings, and other binding types. Document the
cp315minimum for PyO3 ABI3T builds and add a changelog entry.Testing
pyo3/abi3t-py315feature, ABI3T extension filename, wheel tags, and exportedPyModExport_rustentry point. This was not runtime-tested on Python 3.15t.