My apologies. The link I posted was invalid. The one below is a step up in the directory structure which is a bit more stable level in terms of how the system I'm using labels its uploaded files. The package I mentioned is ClusterPlot.py
http://www.umit.maine.edu/~r.springuel/000CCFE8-80000018/
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R. Padraic Springuel
Teaching Assistant
Department of Physics and Astronomy
University of Maine
Bennett 309
Office Hours: By Appointment only during the Summer