Traceback (most recent call last):
  File "C:\Documents and Settings\Andy\My Documents\id3.py", line 30, in -toplevel-
    sort(mylist)
  File "C:\Documents and Settings\Andy\My Documents\id3.py", line 24, in sort
    print id3info['ARTIST']
  File "C:\Program Files\Python\lib\ID3.py", line 383, in __getitem__
    return self.d[k]
KeyError: 'ARTIST'