3.3.4.1. networkx.DiGraph.has_node¶

DiGraph.has_node(n)¶

Return True if the graph contains the node n.

Parameters:	n : node

Examples

>>> G = nx.path_graph(3)  # or DiGraph, MultiGraph, MultiDiGraph, etc
>>> G.has_node(0)
True

It is more readable and simpler to use

>>> 0 in G
True