[issue15795] Zipfile.extractall does not preserve file permissions

[Éric Araujo]

Éric Araujo <merwok at netwok.org> added the comment:

On second thought, maybe no fix should be backported.
Changing behaviour silently might break things, changing with a new option puts the change in a grey fix/enhancement area, so maybe better to let current versions as they are, with the bug/limitation noted in the documentation, and give control in 3.11 only.

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<https://bugs.python.org/issue15795>
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