argparse options argument code example

Example 1: argparse required arguments

parser.add_argument('--use-lang', required=True, help="Output language")

Example 2: argparse list of options

parser.add_argument('--list',
                    default='all',
                    const='all',
                    nargs='?',
                    choices=['servers', 'storage', 'all'],
                    help='list servers, storage, or both (default: %(default)s)')