NetworkX (NX) is a Python package for the creation, manipulation, and
study of the structure, dynamics, and functions of complex networks.

Features:
* Includes standard graph-theoretic and statistical physics functions
* Easy exchange of network algorithms between applications, disciplines,
and platforms
* Includes many classic graphs and synthetic networks
* Nodes and edges can be "anything" (e.g. time-series, text, images,
XML records)
* Exploits existing code from high-quality legacy software in C, C++,
Fortran, etc.
* Open source (encourages community input)
* Unit-tested