[issue38194] Consistently add exist_ok / missing_ok parameters to directory creation/deletion functions

[Karthikeyan Singaravelan]

Change by Karthikeyan Singaravelan <tir.karthi at gmail.com>:


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nosy: +serhiy.storchaka

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue38194>
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