size¶

Graph.
size
(weight=None)[source]¶ Return the number of edges.
Parameters: weight (string or None, optional (default=None)) – The edge attribute that holds the numerical value used as a weight. If None, then each edge has weight 1. Returns: nedges – The number of edges or sum of edge weights in the graph. Return type: int See also
Examples
>>> G = nx.Graph() # or DiGraph, MultiGraph, MultiDiGraph, etc >>> G.add_path([0,1,2,3]) >>> G.size() 3
>>> G = nx.Graph() # or DiGraph, MultiGraph, MultiDiGraph, etc >>> G.add_edge('a','b',weight=2) >>> G.add_edge('b','c',weight=4) >>> G.size() 2 >>> G.size(weight='weight') 6.0