arbitrary directed and undirected graphs with thousands of nodes and millions
of edges. Since the module makes use of the open source igraph library
written in almost 100% pure C, it is blazing fast and outperforms most other
pure Python-based packages around.
WWW: http://cneurocvs.rmki.kfki.hu/igraph
PR: ports/106971
Submitted by: Li-Wen Hsu <lwhsu at lwhsu.org>
