python-recsys is build on top of Divisi2, with csc-pysparse (Divisi2 also requires NumPy, and uses Networkx).
python-recsys also requires SciPy.
To install the dependencies do something like this (Ubuntu):
sudo apt-get install python-scipy python-numpy
sudo apt-get install python-pip
sudo pip install csc-pysparse networkx divisi2
# If you don't have pip installed
# (i.e. the last command, sudo pip install, fails)
# then do:
# sudo easy_install csc-pysparse
# sudo easy_install networkx
# sudo easy_install divisi2
Note
If you get an error like this one while compiling csc-pysparse:
Error
(...) error: Python.h: No such file or directory”
then you need to also install python-dev package:
sudo apt-get install python-dev
tar xvfz python-recsys.tar.gz
cd python-recsys
sudo python setup.py install