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Note

This documents the development version of NetworkX. Documentation for the current release can be found here.

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networkx.DiGraph.has_node

DiGraph.has_node(n)

Returns True if the graph contains the node n.

Identical to n in G

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