In SageMath, if you define a graph G (for example G = Graph()), then G.coloring? gives the documentation of the coloring method for G, and G.coloring?? gives the source code.
In SageMath, if you define a graph G (for example G = Graph()), then G.coloring? gives the documentation of the coloring method for G, and G.coloring?? gives the source code.