[docs] [issue35533] argparse standard error usage for exit / error

[Vinay Badhan]

Vinay Badhan <vinay.badhan21 at gmail.com> added the comment:

Add documentation for exit() function

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keywords: +patch
nosy: +vinayb21
pull_requests: +11377
stage:  -> patch review

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue35533>
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