[issue34572] C unpickling bypasses import thread safety

[Antoine Pitrou]

Antoine Pitrou <pitrou at free.fr> added the comment:


New changeset 4371c0a9c0848f7a0947d43f26f234842b41efdf by Antoine Pitrou (tjb900) in branch 'master':
bpo-34572: change _pickle unpickling to use import rather than retrieving from sys.modules (GH-9047)
https://github.com/python/cpython/commit/4371c0a9c0848f7a0947d43f26f234842b41efdf


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<https://bugs.python.org/issue34572>
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