[issue32388] Remove cross-version binary compatibility

[STINNER Victor]

STINNER Victor <vstinner at redhat.com> added the comment:

In which version of Python tp_finalize slot has been added? Does it mean that Python 3.8 wil crash on loading C extensions compiled on Python older than this version?

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nosy: +vstinner

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue32388>
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