[issue37523] zipfile: Raise ValueError for i/o operations on closed zipfile.ZipExtFile

[Daniel Hillier]

Change by Daniel Hillier <daniel.hillier at gmail.com>:


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keywords: +patch
pull_requests: +14465
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/14658

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue37523>
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