#!/usr/bin/env python
     # encoding: utf-8
     #
     # Copyright (c) 2010 Doug Hellmann.  All rights reserved.
     #
     """Demonstrate a non-Unicode codec.
     """
     #end_pymotw_header
     
     import codecs
     from cStringIO import StringIO
     
     buffer = StringIO()
     stream = codecs.getwriter('rot_13')(buffer)
     
     text = 'abcdefghijklmnopqrstuvwxyz'
     
     stream.write(text)
     stream.flush()
     
     print 'Original:', text
     print 'ROT-13  :', buffer.getvalue()