networkx.MultiGraph.add_edges_from¶

MultiGraph.
add_edges_from
(ebunch_to_add, **attr)[source]¶ Add all the edges in ebunch_to_add.
Parameters: ebunch_to_add (container of edges) – Each edge given in the container will be added to the graph. The edges can be:
 2tuples (u, v) or
 3tuples (u, v, d) for an edge data dict d, or
 3tuples (u, v, k) for not iterable key k, or
 4tuples (u, v, k, d) for an edge with data and key k
attr (keyword arguments, optional) – Edge data (or labels or objects) can be assigned using keyword arguments.
Returns: Return type: A list of edge keys assigned to the edges in
ebunch
.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 an ebunch take precedence over attributes specified via keyword arguments.
Default keys are generated using the method
new_edge_key()
. This method can be overridden by subclassing the base class and providing a customnew_edge_key()
method.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')