single_source_shortest_path¶

single_source_shortest_path(G, source, cutoff=None)[source]¶

Compute shortest path between source and all other nodes reachable from source.

Parameters:	G (NetworkX graph) – source (node label) – Starting node for path cutoff (integer, optional) – Depth to stop the search. Only paths of length <= cutoff are returned.
Returns:	lengths – Dictionary, keyed by target, of shortest paths.
Return type:	dictionary

Examples

>>> G=nx.path_graph(5)
>>> path=nx.single_source_shortest_path(G,0)
>>> path[4]
[0, 1, 2, 3, 4]

Notes

The shortest path is not necessarily unique. So there can be multiple paths between the source and each target node, all of which have the same ‘shortest’ length. For each target node, this function returns only one of those paths.