Docopt example

docopt-example.py

"""
Wait for a specific process to finish, then notify via Pushover API.

Usage:
    notify-on-exit [options] PID [MESSAGE]

Options:
    -p          High priority (this message will pop on the phone).
    -b          Run in the background.
    --version   Show version information.
    -h, --help  Show this message.
"""

VERSION = '1.0'

from docopt import docopt

# [...]

def main():
    arguments = docopt(__doc__, version=VERSION)

    pid = int(arguments['PID'])

    # [...]