Sam Gross 67fbfb42bd
gh-131586: Avoid refcount contention in some "special" calls (#131588)
In the free threaded build, the `_PyObject_LookupSpecial()` call can lead to
reference count contention on the returned function object becuase it
doesn't use stackrefs. Refactor some of the callers to use
`_PyObject_MaybeCallSpecialNoArgs`, which uses stackrefs internally.

This fixes the scaling bottleneck in the "lookup_special" microbenchmark
in `ftscalingbench.py`. However, the are still some uses of
`_PyObject_LookupSpecial()` that need to be addressed in future PRs.
2025-03-26 14:38:47 -04:00
..

Miscellaneous source files for the main Python shared library