sudo apt-get install python-gnuplot
sudo apt-get install python-scitool
sudo apt-get install python-pyx 
acroread----> get.adobe.com/uk/reader/otherversions
sudo apt-get install python-numpy
sudo apt-get install python-scipy 
packages.debian.org/squeeze/amd64/graphviz/download
sudo apt-get install imagemagick
sudo apt-get install python-visual