#!/usr/bin/env python

"""
illustrate which options are parsed with argparse
"""

import argparse
import sys

class UndefinedArgumentParser(argparse.ArgumentParser)

def main(args=sys.argv[1:]):

    parser = UndefinedArgumentParser()
    parser.add_argument('--foo', dest='foo',
                        help="foo")

if __name__ == '__main__':
    main()