[BioPython] Cladograms

[Renato Alves]

Hi everyone,

I've been searching the web for python modules to do cladograms but the 
only relevant stuff I found was relative to dendograms and hierarchical 
clustering which will give the representation I need.
My goal is something that resembles a heatmap[1] but where the trees 
will be cladograms[2] instead of the result of clustering steps.
I know that probably I won't find modules doing exactly what I want, 
which is why I'm searching for tools to do each step separately and try 
to glue them somehow. For the heatmap I have something already that will 
probably do the job, but for the cladograms I couldn't find any decent 
module.
Do you happen to know any dark alley in BioPython or any other external 
module that would allow me to do the cladogram?

Thanks,
Renato

[1] - 
http://www2.warwick.ac.uk/fac/sci/moac/currentstudents/peter_cock/r/heatmap/default_heatmap.png
[2] - 
http://www.csupomona.edu/~jcclark/classes/bot125/resource/graphics/c/cladogram.gif