[issue40050] test_importlib leaked [6303, 6299, 6303] references

[STINNER Victor]

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


New changeset 188078c39dec24aa5b3f2073bdc9a68ebaae42de by Victor Stinner in branch 'master':
Revert "bpo-1635741: Port _weakref extension module to multiphase initialization (PEP 489) (GH-19084)" (#19128)
https://github.com/python/cpython/commit/188078c39dec24aa5b3f2073bdc9a68ebaae42de


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