[issue24538] os.setxattr PermissionError on panfs propagates up causing `copystat`, `copytree`, and `pip install .` to fail unhepfully

[Maxime Boissonneault]

Changes by Maxime Boissonneault <maxime.boissonneault at calculquebec.ca>:


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nosy: +Maxime Boissonneault

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue24538>
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