[issue14149] argparse: Document how to use argument names that are not Python identifiers

[Dan Arad]

Dan Arad <dan1994 at gmail.com> added the comment:

Hi everyone!

I thought to take this issue up by updating the documentation. Is this still relevant?

If so I think the best place to add the documentation is in the "name or flags" section, where people will go looking first. I think to add both the metavar and the vars solutions discussed below.

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nosy: +Dan Arad

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