networkx.Graph.number_of_nodes

Graph.number_of_nodes()

Return the number of nodes in the graph.

Returns:

nnodes : int

The number of nodes in the graph.

See also

order, __len__

Examples

>>> G = nx.Graph()   # or DiGraph, MultiGraph, MultiDiGraph, etc
>>> G.add_path([0,1,2])
>>> print len(G)
3