Pygr is an open source software project used to develop graph database
interfaces for the popular Python language, with a strong emphasis
on bioinformatics applications ranging from genome-wide analysis of
alternative splicing patterns, to comparative genomics queries of
multi-genome alignment data.
Please see our http://code.google.com/p/pygr/wiki/PygrDocumentation Google Code Wiki for tutorials, module documentation, recipes, and forum. NOTE: to build Pygr from this source repository, you need Pyrex (downloadable from http://www.cosc.canterbury.ac.nz/greg.ewing/python/Pyrex/) and a C compiler usable with Python distutils.