[issue39430] tarfile.open(mode="r") race condition when importing lzma

[Serhiy Storchaka]

Change by Serhiy Storchaka <storchaka+cpython at gmail.com>:


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keywords: +patch
pull_requests: +17548
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/18161

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue39430>
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