9.11.1.6. networkx.algorithms.traversal.depth_first_search.dfs_postorder_nodes¶

networkx.algorithms.traversal.depth_first_search.dfs_postorder_nodes(G, source=None)[source]¶

Produce nodes in a depth-first-search post-ordering starting from source.

Parameters:

G : NetworkX graph

source : node, optional

Specify starting node for depth-first search and return edges in the component reachable from source.

Returns:

nodes: generator

A generator of nodes in a depth-first-search post-ordering.

Notes

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.path_graph(3)
>>> print(list(nx.dfs_postorder_nodes(G,0)))
[2, 1, 0]