add_edges_from¶

Graph.
add_edges_from
(ebunch, attr_dict=None, **attr)[source]¶ Add all the edges in ebunch.
Parameters:  ebunch (container of edges) – Each edge given in the container will be added to the graph. The edges must be given as as 2tuples (u,v) or 3tuples (u,v,d) where d is a dictionary containing edge data.
 attr_dict (dictionary, optional (default= no attributes)) – Dictionary of edge attributes. Key/value pairs will update existing data associated with each edge.
 attr (keyword arguments, optional) – Edge data (or labels or objects) can be assigned using keyword arguments.
See also
add_edge()
 add a single edge
add_weighted_edges_from()
 convenient way to add weighted edges
Notes
Adding the same edge twice has no effect but any edge data will be updated when each duplicate edge is added.
Edge attributes specified in edges take precedence over attributes specified generally.
Examples
>>> G = nx.Graph() # or DiGraph, MultiGraph, MultiDiGraph, etc >>> G.add_edges_from([(0,1),(1,2)]) # using a list of edge tuples >>> e = zip(range(0,3),range(1,4)) >>> G.add_edges_from(e) # Add the path graph 0123
Associate data to edges
>>> G.add_edges_from([(1,2),(2,3)], weight=3) >>> G.add_edges_from([(3,4),(1,4)], label='WN2898')