New submission from vincent-ferotin :
It is currently not obvious, reading :mod:`argparse` documentation, that
:meth:`argparse.ArgumentParser.add_argument` could accept as 'choices'
parameter an :class:`enum.Enum`.
However, it seems (at least to me) that this 'choices' parameter [1] is the
perfect candidat of enums usage (see [2]).
So I suggest here to explicitly mention and illustrate such usage in current
Python documentation. As far I as could test, such usage works at least with
Python 3.5, 3.7, and 3.8.
A small patch on 'master' branches is in progress, and should shortly be
available as a GitHub pull-request.
[1] https://docs.python.org/3/library/argparse.html#choices
[2] PEP 435: https://www.python.org/dev/peps/pep-0435/#motivation
--
assignee: docs@python
components: Documentation
messages: 371812
nosy: Vincent Férotin, docs@python
priority: normal
severity: normal
status: open
title: doc: Explicitly mention use of 'enum.Enum' as a valid container for
'choices' argument of 'argparse.ArgumentParser.add_argument'
type: enhancement
versions: Python 3.10, Python 3.5, Python 3.6, Python 3.7, Python 3.8, Python
3.9
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