Warning

This documents an unmaintained version of NetworkX. Please upgrade to a maintained version and see the current NetworkX documentation.

networkx.Graph.__len__

Graph.__len__()[source]

Returns the number of nodes in the graph. Use: ‘len(G)’.

Returns

nnodes – The number of nodes in the graph.

Return type

int

See also

number_of_nodes(), order()

Examples

>>> G = nx.path_graph(4)  # or DiGraph, MultiGraph, MultiDiGraph, etc
>>> len(G)
4