[solved] Basic question on list matchiing

[DeaD_EyE]

You could use ArgumentParser, which returns a Namespace, where you can access for example to answer.

from argparse import ArgumentParser


ANSWERS = ("n", "y")


def get_args():
    parser = ArgumentParser()
    parser.add_argument("--answer", dest="ANSWER", metavar="YOUR_CHOICE", default="n", choices=ANSWERS)
    return parser.parse_args()


if __name__ == "__main__":
    print(get_args())

I named the script c.py:

[andre@andre-Fujitsu-i5 ~]$ python c.py -h
usage: c.py [-h] [--answer YOUR_CHOICE]

options:
-h, --help show this help message and exit
--answer YOUR_CHOICE
[andre@andre-Fujitsu-i5 ~]$ python c.py --answer y
Namespace(ANSWER='y')
[andre@andre-Fujitsu-i5 ~]$ python c.py --answer i
usage: c.py [-h] [--answer YOUR_CHOICE]
c.py: error: argument --answer: invalid choice: 'i' (choose from 'y', 'n')

Also, arguments with more than one parameter (nargs) are possible.