descendants#

descendants(G, source)[source]#

Returns all nodes reachable from source in G.

Parameters:
GNetworkX Graph
sourcenode in G
Returns:
set()

The descendants of source in G

Raises:
NetworkXError

If node source is not in G.

See also

ancestors

Examples

>>> DG = nx.path_graph(5, create_using=nx.DiGraph)
>>> sorted(list(nx.descendants(DG, 2)))
[3, 4]