[New-bugs-announce] [issue35495] argparse does not honor default argument for nargs=argparse.REMAINDER argument

Ryan Govostes report at bugs.python.org
Fri Dec 14 10:59:40 EST 2018


New submission from Ryan Govostes <rgovostes at gmail.com>:

import argparse
parser = argparse.ArgumentParser()
parser.add_argument('things', nargs=argparse.REMAINDER, default=['nothing'])
parser.parse_args([])
>>> Namespace(things=[])

Since there were no unparsed arguments remaining, the `default` setting for `things` should have been honored. However it silently ignores this setting.

If there's a reason why this wouldn't be desirable, it should raise an exception that the options aren't compatible.

----------
components: Library (Lib)
messages: 331837
nosy: rgov
priority: normal
severity: normal
status: open
title: argparse does not honor default argument for nargs=argparse.REMAINDER argument
type: behavior

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue35495>
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