[issue42599] Remove PyModule_GetWarningsModule() in pylifecycle.c

[STINNER Victor]

STINNER Victor <vstinner at python.org> added the comment:

> When was the visibility changed to hidden?

In Python 3.9:

commit 0b60f64e4343913b4931dc27379d9808e5b78fe1
Author: Vinay Sajip <vinay_sajip at yahoo.co.uk>
Date:   Tue Oct 15 08:26:12 2019 +0100

    bpo-11410: Standardize and use symbol visibility attributes across POSIX and Windows. (GH-16347)


Symbols which are not declared with PyAPI_FUNC() are no longer exported when using GCC or clang (any compiler supporting -fvisibility=hidden).


PyModule_GetWarningsModule() was not documented nor exported.

I merged the PR. If it breaks too many packages, we can consider to revert the change. But I expect that there are zero project using it.

Note: PyModule_GetWarningsModule() was not part of PC/python3dll.c neither, hopefully ;-)

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resolution:  -> fixed
stage: patch review -> resolved
status: open -> closed

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