Warning

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

add_weighted_edges_from

DiGraph.add_weighted_edges_from(ebunch, weight='weight', **attr)

Add all the edges in ebunch as weighted edges with specified weights.

Parameters:

• ebunch (container of edges) – Each edge given in the list or container will be added to the graph. The edges must be given as 3-tuples (u,v,w) where w is a number.
• weight (string, optional (default= ‘weight’)) – The attribute name for the edge weights to be added.
• attr (keyword arguments, optional (default= no attributes)) – Edge attributes to add/update for all edges.

See also

add_edge()

add a single edge

add_edges_from()

add multiple edges

Notes

Adding the same edge twice for Graph/DiGraph simply updates the edge data. For MultiGraph/MultiDiGraph, duplicate edges are stored.

Examples

>>> G = nx.Graph()   # or DiGraph, MultiGraph, MultiDiGraph, etc
>>> G.add_weighted_edges_from([(0,1,3.0),(1,2,7.5)])