[issue40222] "Zero cost" exception handling

[Petr Viktorin]

Petr Viktorin <encukou at gmail.com> added the comment:

PyCode_NewWithPosOnlyArgs is not part of the stable ABI. It is OK to break its ABI in a minor version (i.e. 3.11).

The PyAPI_FUNC makes it part of the public *API*. It needs to be source- compatible; the number of arguments can't change. Could yo u add a new function?

I wouldn't remove PyCode_NewWithPosOnlyArgs from the public C API, which can be CPython-specific and used by projects like Cython that need some low-level access for performance. But PEP 387 applies, so if it is deprecated in 3.11, it can be removed in 3.13.

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