# Hello World

import sys


def hello(thing):
    print "Hello {}".format(thing)
    return


if __name__ == "__main__":
    sys.exit(hello())

# Hello World

import sys


def hello(thing):
    print "Hello {}".format(thing)
    return


if __name__ == "__main__":
    user_thing = sys.argv[-1]
    sys.exit(hello(user_thing))

Allow user to specify thing.
Allow user to specify thing.
