The following repository contains implementations of the functions described in the article "Drawing Presentable Trees" published in Python Magazine. Check it out at http://billmill.org/pymag-trees/ All code and text contained herein is free for anyone to use as they see fit. It is licensed under the WTFPL, which can be found in the LICENSE file.
llimllib/pymag-trees
Code from the article "Drawing Good-looking Trees" in Python Magazine
PythonWTFPL