gistfile1.py

def main():
	try:
		opts, args = getopt.getopt(sys.argv[1:], "ht:", ["help" ])
	except getopt.GetoptError, err:
		raise UseError()
	if not len(args):
		raise UseError()
        try:
	   pathtype = int(opts["-t"])

           if pathtye not in (1,2,3):
                  raise Usererror('is not 1,2,3')
        excpet KeyError,err:
                  raise UseError()

	for path in args:
		process_path(path,pathtype)

if __name__ == "__main__":
   try:
	main()
   excpet  UserError,err
        pass