Template for command-line python script (file processing)

process.py

#!/usr/bin/env python3
'Module docstring.'

import argparse as ap
import glob as gl
import sys

def run(paths):
    'Runs the algorithm.'
    for glob in paths:
        for filename in gl.glob(glob):
            # do something with filename
            print(filename)

def main():
    'Parses arguments.'
    parser = ap.ArgumentParser(argument_default=ap.SUPPRESS, \
        description=sys.modules[__name__].__doc__)

    # add arguments with parser.add_argument()
    parser.add_argument("paths", type=str, nargs=ap.REMAINDER, \
        help='argument help, supports unix-style globs')
    
    if len(sys.argv) == 1:
        parser.print_help()
        sys.exit(1)

    run(**vars(parser.parse_args()))

if __name__ == "__main__":
    main()