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# fnss.topologies.datacenter.DatacenterTopology.add_weighted_edges_from

`DatacenterTopology.``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)])

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