argparse accept only few options
...
parser.add_argument('--val',
choices=['a', 'b', 'c'],
help='Special testing value')
args = parser.parse_args(sys.argv[1:])argparse accept only few options
...
parser.add_argument('--val',
choices=['a', 'b', 'c'],
help='Special testing value')
args = parser.parse_args(sys.argv[1:])python argparser flags
parser.add_argument("-v", "--verbose", action="store_true",
help="verbose output")python argparse choice
parser.add_argument('--list',
default='all',
const='all',
nargs='?',
choices=['servers', 'storage', 'all'],
help='list servers, storage, or both (default: %(default)s)')argparse choices
>>> parser = argparse.ArgumentParser(prog='game.py')
>>> parser.add_argument('move', choices=['rock', 'paper', 'scissors'])
>>> parser.parse_args(['rock'])
Namespace(move='rock')
>>> parser.parse_args(['fire'])
usage: game.py [-h] {rock,paper,scissors}
game.py: error: argument move: invalid choice: 'fire' (choose from 'rock',
'paper', 'scissors')Copyright © 2021 Codeinu
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