How can I use python's argparse with a predefined argument string?

Question

I want to use the pythons argparse module to parse my cli parameter string. This works for the parameters a pass from terminal, but not with a given string.

Answer 1

Simply split your command string :

args = parser.parse_args(argString.split())

A complete example to showcase :

import argparse

if __name__ == '__main__':
    parser = argparse.ArgumentParser()
    parser.add_argument('--dummy_opt', nargs='*', type=int, help='some ids')
    argString = "--dummy_opt 128 128"
    args = parser.parse_args(argString.split())

    print(args)

will output :

Namespace(pic_resize=[128, 128])