[issue44219] Opening a file holds the GIL when it calls "isatty()"

[Vincent Michel]

Change by Vincent Michel <vxgmichel at gmail.com>:


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pull_requests: +26671
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/28250

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue44219>
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