How to get ISBN number from a book title and author programmatically?

Question

Is there a way to get ISBN number from the title of the book and author programmatically (preferably in Python)?

Does Amazon provide web services for this? If so, how can one use it?

Answer 1

http://isbndb.com/data-intro.html

Someone has already written a python wrapper: http://code.google.com/p/isbndb-py/