Python command line program skeleton

command_line_skeleton.py

#!/usr/bin/env python3
"""
Does cool things, with optional verbose output.
"""
import logging


log = logging.getLogger()


def do_stuff(arg1: str, arg2: list):
    log.info("Normal output")
    log.debug("Verbose output (%s) %s", arg1, arg2)


if __name__ == "__main__":
    import argparse, sys
    parser = argparse.ArgumentParser(description='Text that goes at the top',
                                     formatter_class=argparse.ArgumentDefaultsHelpFormatter,
                                     epilog='Text that goes at the bottom.')
    parser.add_argument('-v', '--verbose', action='store_true', help='show detailed output')
    parser.add_argument('--arg_1', default='arg_1_default', help='first argument')
    parser.add_argument(dest='arg_2', nargs=3, help='trailing arguments')
    args = parser.parse_args()

    level = 'DEBUG' if args.verbose else 'INFO'
    logging.basicConfig(stream=sys.stdout, level=level, format='[{levelname}]\t{message}', style='{')
    do_stuff(args.arg_1, args.arg_2)