[issue22024] Add to shutil the ability to wait until files are definitely deleted

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

What if other program will create a file with same name in short time after deletion? Then rmtree() will hang in infinity loop.

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nosy: +serhiy.storchaka

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22024>
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