Add initial support for abi3.abi3t tag from PEP 803#5193
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Add initial support for abi3.abi3t tag from PEP 803#5193
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Summary of changes
PEP 803 proposes a free-threaded stable ABI. I'm working on ecosystem support for a free-threaded stable ABI and end-to-end tests for PEP 803. There is experimental support for an opaque PyObject ABI in currently CPython 3.15 alphas.
This PR isn't mergeable until PEP 803 is accepted and pypa/packaging#1099 is available in a released version of
packaging.It possible that in the future setuptools might want to add a new config knob to go along with
py-limited-api(py-target-abi3tmaybe?), but that will require PEP 803 to be accepted in its current form. IMO for now requring a free-threaded interpreter to build an abi3t wheel is fine.Pull Request Checklist
newsfragments/.(See documentation for details)