• Discussion:https://discuss.python.org/t/use-the-limited-c-api-for-some-of-our-stdlib-c-extensions/32465
• Previous attempt at the end of August: PRgh-85283: _stat extension uses the limited C API #108573

cc@erlend-aasland@corona10@encukou

I approved as this seems trivial so "lets do it!", obviously figuring out the windows build excitement in CI needs to happen first.

What's going on? Now Windows build fails with:

LINK : fatal error LNK1104: cannot open file 'python313_d.lib' [D:\a\cpython\cpython\PCbuild\pythoncore.vcxproj]

LINK : fatal error LNK1104: cannot open file 'python313_d.lib' [D:\a\cpython\cpython\PCbuild\pythoncore.vcxproj]

Ok, I found the root issue and wrote a fix: PRgh-110725. The problem comes from PyAPI_FUNC(), PyAPI_DATA() and PyMODINIT_FUNC macros which have a different implementation depending if the 3 Py_BUILD_CORE macros are defined or not.

Merged, thanks for the review@gpshead and@erlend-aasland.