Pybio is biorythm calculator written entirely in Python. Thanks to implementing user interface in Tkinter, it should run on nearly all platforms supported by Python - Windows, Linux and Mac in particular. Currently it can count biorythms and draw graphs for 20 days before and after the given date. It could count something in addition to those biorythms, as soon as someone tells me how ;) I'm open to any suggestions.

Pybio v0.2 released! 02/09/2003
New features include drawing graphs of biorythms. Actually now I don't know what more to add. I'm open to sugestions... ;P