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

[Serhiy Storchaka]

Serhiy Storchaka <storchaka+cpython at gmail.com> added the comment:


New changeset 526a01467b3277f9fcf7f91e66c23321caa1245d by Serhiy Storchaka in branch 'master':
bpo-34410: Fix a crash in the tee iterator when re-enter it. (GH-15625)
https://github.com/python/cpython/commit/526a01467b3277f9fcf7f91e66c23321caa1245d


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