[issue34410] itertools.tee not thread-safe; can segfault interpreter when wrapped iterator releases GIL

[miss-islington]

miss-islington <mariatta.wijaya+miss-islington at gmail.com> added the comment:


New changeset 5190b7193c184268d5c8a9440b3a5a8bcd84a23e by Miss Islington (bot) in branch '3.7':
bpo-34410: Fix a crash in the tee iterator when re-enter it. (GH-15625)
https://github.com/python/cpython/commit/5190b7193c184268d5c8a9440b3a5a8bcd84a23e


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<https://bugs.python.org/issue34410>
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