Warning
This documents an unmaintained version of NetworkX. Please upgrade to a maintained version and see the current NetworkX documentation.
bfs_successors¶
- bfs_successors(G, source)[source]¶
Return dictionary of successors in breadth-first-search from source.
Parameters : G : NetworkX graph
source : node, optional
Specify starting node for breadth-first search and return edges in the component reachable from source.
Returns : succ: dict
A dictionary with nodes as keys and list of succssors nodes as values.
Notes
Based on http://www.ics.uci.edu/~eppstein/PADS/BFS.py by D. Eppstein, July 2004.
If a source is not specified then a source is chosen arbitrarily and repeatedly until all components in the graph are searched.
Examples
>>> G = nx.Graph() >>> G.add_path([0,1,2]) >>> print(nx.bfs_successors(G,0)) {0: [1], 1: [2]}