Pysparse is a fast sparse matrix library for Python. It provides several sparse matrix storage formats and conversion methods. Pysparse also implements a number of iterative solvers, preconditioners, and interfaces to efficient factorization packages. Both low-level and high-level interfaces are available, each with different strengths.
This is not the official source to PySparse. This is csc-pysparse, a downstream package maintained by the Commonsense Computing Group (http://csc.media.mit.edu) with the goal of making it install automatically through Pip or easy_install.