def add_parser_help(p):
 p.add_argument(u'-h', u'--help', action=argparse._HelpAction, help=u'Show this help message and exit.')

def add_parser_help ( p ) : p . add_argument ( u'-h' , u'--help' , action = argparse . _HelpAction , help = u'Show this help message and exit.' )
so we can use consistent capitalization and periods in the help .