[issue29553] Argparser does not display closing parentheses in nested mutex groups

[Berker Peksag]

Berker Peksag <berker.peksag at gmail.com> added the comment:

da27d9b9dc44913ffee8f28d9638985eaaa03755 needs to be manually backported to 3.8.

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stage: patch review -> backport needed
versions: +Python 3.8 -Python 2.7, Python 3.5

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue29553>
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