Hi, On page: http://docs.python.org/py3k/library/difflib.html#module-difflib class difflib.Differ has a compare() method: but it isn't shown. -- Mark Summerfield, Qtrac Ltd, www.qtrac.eu C++, Python, Qt, PyQt - training and consultancy "Programming in Python 3" - ISBN 0321680561 http://www.qtrac.eu/py3book.html