[issue42547] argparse: add_argument(... nargs='+', metavar=<tuple>) does not work with positional arguments

[paul j3]

paul j3 <ajipanca at gmail.com> added the comment:

I'll reopen it - your patch, while not a complete resolution, does take care of the immediate error.

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resolution: duplicate -> 
status: closed -> open

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<https://bugs.python.org/issue42547>
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