#!/usr/bin/env python
     # encoding: utf-8
     #
     # Copyright (c) 2009 Doug Hellmann All rights reserved.
     #
     """
     """
     #end_pymotw_header
     
     import collections
     
     try:
         collections.namedtuple('Person', 'name class age gender')
     except ValueError, err:
         print err
     
     try:
         collections.namedtuple('Person', 'name age gender age')
     except ValueError, err:
         print err