[docs] [issue42194] BooleanOptionalAction missing "New in version 3.9"

Oct. 29, 2020


      New submission from shangxiao <shang.xiao.sanders@gmail.com>:

The section that describes BooleanOptionalAction just requires a "New in version 3.9" tag

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assignee: docs@python
components: Documentation
messages: 379867
nosy: docs@python, shangxiao
priority: normal
severity: normal
status: open
title: BooleanOptionalAction missing "New in version 3.9"
versions: Python 3.9

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Python tracker <report@bugs.python.org>
<https://bugs.python.org/issue42194>
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