[issue38392] Ensure that objects entering the GC are valid

[STINNER Victor]

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

Ok, I pushed a change. Let's see how third party projects like it :-) We still have time to revert it if it causes too many damage.

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

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue38392>
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