#!/usr/bin/env python
     # encoding: utf-8
     #
     # Copyright (c) 2010 Doug Hellmann.  All rights reserved.
     #
     """Errors decoding Unicode data.
     """
     #end_pymotw_header
     
     import codecs
     import sys
     
     from codecs_to_hex import to_hex
     
     error_handling = sys.argv[1]
     
     text = u'pi: \u03c0'
     print 'Original     :', repr(text)
     
     # Save the data with one encoding
     with codecs.open('decode_error.txt', 'w', encoding='utf-16') as f:
         f.write(text)
     
     # Dump the bytes from the file
     with open('decode_error.txt', 'rb') as f:
         print 'File contents:', to_hex(f.read(), 1)
     
     # Try to read the data with the wrong encoding
     with codecs.open('decode_error.txt', 'r',
                      encoding='utf-8',
                      errors=error_handling) as f:
         try:
             data = f.read()
         except UnicodeDecodeError, err:
             print 'ERROR:', err
         else:
             print 'Read         :', repr(data)