Boost graph library
From TrustLet, a free, collaborative project for collecting and analyzing information about trust metrics.
The Boost Graph Library Python bindings ("BGL-Python") expose the functionality of the Boost Graph Library and Parallel Boost Graph Library as a Python package, allowing one to perform computation-intensive tasks on graphs (or networks) from within an easy-to-use scripting language.
BGL-Python contains many of the data structures and algorithms found in the C++ (Parallel) Boost Graph Library, including:
- Undirected and directed adjacency list data structures
- Arbitrary properties can be attached to vertices and edges.
- Breadth-first and depth-first search
- Single-source shortest paths (Dijkstra, Bellman-Ford)
- Betweenness centrality
- Graph layout algorithms (circle, Kamada-Kawai, Fruchterman-Reingold)
- Connected, biconnected, and strongly-connected components
- Sparse matrix ordering (minimum degree ordering, King, Cuthill-McKee)
- Minimum spanning tree algorithms (Prim, Kruskal)
- Topological sort
- Transitive closure
- GraphViz file input/output.
There is a Powerpoint presentation on "Large-Scale Network Analysis with the Boost Graph Libraries" (.ppt file) which might be useful.

