#!/usr/bin/env python
     # encoding: utf-8
     #
     # Copyright (c) 2010 Doug Hellmann.  All rights reserved.
     #
     """Files as context managers.
     """
     #end_pymotw_header
     
     with open('/tmp/pymotw.txt', 'wt') as f:
         f.write('contents go here')
     # file is automatically closed