Building Decision Trees in Python

In "Programming Collective Intelligence" there are other examples if someone is interested.<p><a href="http://oreilly.com/catalog/9780596529321" rel="nofollow">http://oreilly.com/catalog/9780596529321</a>

As one-page article <a href="http://onlamp.com/lpt/a/6464" rel="nofollow">http://onlamp.com/lpt/a/6464</a>

A 2006 article on implementing this machine learning algorithm.