How can I pass a list as a command-line argument with argparse?

SHORT ANSWER Use the nargs option or the 'append' setting of the action option (depending on how you want the user interface to behave). nargs parser.add_argument('-l','--list', nargs='+', help='<Required> Set flag', required=True) # Use like: # python arg.py -l 1234 2345 3456 4567 nargs='+' takes 1 or more arguments, nargs='*' takes zero or more. append parser.add_argument('-l','--list', action='

[mygjsi48]

argparse option for passing a list as option

[plasma0713]

リストのインデックスを指定するときは`nargs='*'`もしくは`nargs='+'`が使えそう。