single_source_dijkstra_path¶

single_source_dijkstra_path(G, source, cutoff=None, weight='weight')[source]¶

Compute shortest path between source and all other reachable nodes for a weighted graph.

Parameters:	G (NetworkX graph) – source (node) – Starting node for path. weight (string, optional (default='weight')) – Edge data key corresponding to the edge weight cutoff (integer or float, optional) – Depth to stop the search. Only paths of length <= cutoff are returned.
Returns:	paths – Dictionary of shortest path lengths keyed by target.
Return type:	dictionary

Examples

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

Notes

Edge weight attributes must be numerical. Distances are calculated as sums of weighted edges traversed.