[issue32453] shutil.rmtree can have O(n^2) performance on large dirs

[Giampaolo Rodola']

Change by Giampaolo Rodola' <g.rodola at gmail.com>:


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nosy: +giampaolo.rodola

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue32453>
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