Starting point for a python command

start.py

"""
Script to DO SOMETHING.  Starting point.
"""
import argparse
import logging

def logger(log_level):
    logging.getLogger(__name__).setLevel(log_level)

def arguments():
    parser = argparse.ArgumentParser(
        description='Script to DO SOMETHING',
        formatter_class=argparse.ArgumentDefaultsHelpFormatter)
    parser.add_argument('--log-level', type=str, default='INFO',
                        help='Python log level. INFO, DEBUG, etc.')
    parser.add_argument('--arg', type=int,
                        help='Argument integer')
    return parser.parse_args()

def run(arg, log_level='INFO'):
    logger(log_level)
    log = logging.getLogger(__name__)
    log.info('log_level: ', log_level)
    if arg:
        print("arg: %s" % arg)
    else:
        print("arg not specified")


def start():
    args = arguments()
    run(
        args.arg,
        args.log_level
       )


if __name__ == '__main__':
    start()