As documentation suggests:

argparse.REMAINDER. All the remaining command-line arguments are gathered into a list. This is commonly useful for command line utilities that dispatch to other command line utilities:

>>> parser = argparse.ArgumentParser(prog='PROG')
>>> parser.add_argument('--foo')
>>> parser.add_argument('command')
>>> parser.add_argument('args', nargs=argparse.REMAINDER)
>>> print parser.parse_args('--foo B cmd --arg1 XX ZZ'.split())
Namespace(args=['--arg1', 'XX', 'ZZ'], command='cmd', foo='B')

I tried to use this to exactly the same purpose, but in some circumstances it seems buggy for me (or perhaps I get the concept wrong):

import argparse

a = argparse.ArgumentParser()

a.add_argument('-qa', nargs='?')
a.add_argument('-qb', nargs='?')
a.add_argument('rest', nargs=argparse.REMAINDER)

a.parse_args('-qa test ./otherutil bar -q atr'.split())

Result:

test.py: error: ambiguous option: -q could match -qa, -qb

So apparently, if the otherutil has such arguments which somehow "collide" with the arguments given to argparse, it doesn't seem to work correctly.

I would expect when argparse reaches the REMAINDER kind of argument, it just uses up all the strings in the end of the list without any further parsing. Can I reach this effect somehow?

python arguments argparse
Edit
Report