bellman_ford_path_length(G, source, target, weight='weight')¶
Returns the shortest path length from source to target in a weighted graph.
G (NetworkX graph)
source (node label) – starting node for path
target (node label) – ending node for path
weight (string, optional (default=’weight’)) – Edge data key corresponding to the edge weight
length – Shortest path length.
- Return type
>>> G = nx.path_graph(5) >>> print(nx.bellman_ford_path_length(G, 0, 4)) 4
Edge weight attributes must be numerical. Distances are calculated as sums of weighted edges traversed.