- is_semiconnected(G, topo_order=None)[source]#
Returns True if the graph is semiconnected, False otherwise.
A graph is semiconnected if, and only if, for any pair of nodes, either one is reachable from the other, or they are mutually reachable.
- GNetworkX graph
A directed graph.
- topo_order: list or tuple, optional
A topological order for G (if None, the function will compute one)
True if the graph is semiconnected, False otherwise.
If the input graph is undirected.
If the graph is empty.
>>> G = nx.path_graph(4, create_using=nx.DiGraph()) >>> print(nx.is_semiconnected(G)) True >>> G = nx.DiGraph([(1, 2), (3, 2)]) >>> print(nx.is_semiconnected(G)) False