[issue17204] argparser's subparsers.add_parser() should accept an ArgumentParser
paul j3
report at bugs.python.org
Mon Nov 25 18:41:02 CET 2013
paul j3 added the comment:
http://stackoverflow.com/a/20167038/901925
is an example of using `_parser_class` to produce different behavior in the subparsers.
parser = ArgumentParser()
parser.add_argument('foo')
sp = parser.add_subparsers(dest='cmd')
sp._parser_class = SubParser # use different parser class for subparsers
spp1 = sp.add_parser('cmd1')
spp1.add_argument('-x')
spp1.add_argument('bar')
spp1.add_argument('vars',nargs='*')
In this case the SubParser class implements a `parse_intermixed_known_args` method that handles that `nargs='*'` argument.
http://bugs.python.org/issue14191
It shouldn't be hard to add `parser_class` as a documented optional argument to `add_subparsers`.
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