digraph_adj, a Python code which carries out operations on abstract digraphs, a kind of graph with directed edges, described by an adjacency matrix.
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
digraph_adj is available in a Fortran90 version and a Python version.
graph_theory, a Python code which carries out operations on abstract graphs, such as a breadth-first-search, the computation of a minimum spanning tree, an Euler or Hamilton circuit, blocks, chromatic polynomial, or transitive closure. Objects include undirected and directed graphs, weighted graphs, and trees.