Argparse argument example

argparse_sample.py

import argparse

parser = argparse.ArgumentParser(description="Sample usage of argparse")

# Add argument. Do not use all elements as shown. Note: for flags, action="store_true" (?syntax?) is better.
parser.add_argument("-a", "--first", action="store", type=int, dest="first_arg", required=True, default=23, 
	help="An example first argument. Generally use only one of required or default. Leave out type for default (str).")

# Defaults to parsing sys.argv list, but can pass a list as well
args = parser.parse_args()

# Access args by the 'dest' name as added
print "First argument: {0}".format(args.first_arg)