[issue41980] Argparse documentation is slightly misleading
Yannick Gingras
report at bugs.python.org
Sat Oct 10 09:07:37 EDT 2020
Yannick Gingras <ygingras at ygingras.net> added the comment:
Raymond, I would love to submit the PR if we reach a consensus on what the new message should be. I'm a bit out of touch with how things work these days. Is Github the best place to submit the PR?
Paul, very good digging! Reading the coding and running a few examples, I understand that the ``prog`` of the subparser is always the name of the main program with the name of the subcommand *unless* a usage string is supplied, in which case it overrides prog. I suspect that the intent is to favour the programmer supplied usage string and that copying the usage string in the prog of the subparser is an implementation detail. I think we can reword the documentation to describe the expected behavior with more emphasis on the common cases.
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<https://bugs.python.org/issue41980>
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