[issue36389] Add gc.enable_object_debugger(): detect corrupted Python objects in the GC

[STINNER Victor]

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

Ah by the way, this issue was mostly motivated by a customer issue, but the bug disappeared from customer's production.

Moreover, Python 3.8 now allows to use debug build without having to recompile all C extensions:
https://docs.python.org/dev/whatsnew/3.8.html#debug-build-uses-the-same-abi-as-release-build

A debug build may also help to catch more bugs.

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