Python 3 boilerplate with hashbang, argparse and logging.

boilerplate.py

#!/usr/bin/env python3

import argparse
import logging

logging.basicConfig(
    format="[%(asctime)s.%(msecs)03d][%(levelname)8s][%(module)s] %(message)s",
    datefmt="%Y-%m-%d %H:%M:%S",
    # level=logging.INFO,
)
logger = logging.getLogger(__name__)

parser = argparse.ArgumentParser(description='Description goes here.')
parser.add_argument('-v', dest='verbose_info', action='store_true', help='Enable info messages.')
parser.add_argument('-vv', dest='verbose_debug', action='store_true', help='Enable info and debug messages.')
parser.add_argument('-o', '--option', dest='my_opt', metavar='opt', default='hello', help='Generic option.')
parser.add_argument('--boolean', dest='my_bool', action='store_true', help='Generic boolean option.')
args = parser.parse_args()

# Set root logging level
if args.verbose_debug:
    logging.getLogger().setLevel(logging.DEBUG)
elif args.verbose_info:
    logging.getLogger().setLevel(logging.INFO)

logger.debug('Arguments parsed successfully.')
logger.info('The value of \'-o\' is \'%s\'.', args.my_opt)