I've been working on adding support for3.13 to mypyc. After updating the codebase, there are still some functions left we depend on which are now private after#106320. Would it make sense to export these again? That would make adopting3.13 a bit easier. /CC@vstinner

• _PyBytes_Join defined inpycore_bytesobject.h
• _PyObject_CallMethodIdObjArgs defined inpycore_call.h
• _PyType_CalculateMetaclass defined inpycore_object.h
• _PyUnicode_EQ defined inpycore_unicodeobject.h
• _PyUnicode_FastCopyCharacters defined inpycore_unicodeobject.h (this could be replaced withPyUnicode_CopyCharacters but it's used in a simplified copy of_PyUnicode_JoinArray which also uses_PyUnicode_FastCopyCharacters).

Other functions include these two. However, as they are inlined, it isn't a problem to include them.

• _PyObject_CallMethodIdNoArgs and_PyObject_CallMethodIdOneArg defined inpycore_call.h

It would be fine to keep all of them ininternal/pycore_* and just addPyAPI_FUNC.

/CC@hauntsaninja

Linked PRs

• gh-121489: Export private _PyBytes_Join() again #122094
• [3.13] gh-121489: Export private _PyBytes_Join() again #122266
• gh-121489: Export private _PyBytes_Join() again #122267
• [3.13] gh-121489: Export private _PyBytes_Join() again (GH-122267) #122287