This Python package is an extension to rpy2 mapping the R package Matrix.
The R package is a rather complex hierarchy of classes, some of which are already mirrored (along with the hierarchy, as shown here):
To install from the Github repository:
pip install git+https://github.com/rpy2/rpy2-Matrix#egg=rpy2-MatrixAt the time of writing, documentation is only in docstrings, and as examples in the unit tests.