Instead of: ``` def main(argv): args = parser.parse_args(argv[1:]) if __name__ == '__main__': main(sys.argv) ``` It should be ``` def descriptive_function_name(arg1, arg2, arg3): ... if __name__ == '__main__': args = parser.parse_args() descriptive_function_name(args.arg1, args.arg2, args.arg3) ```