def reweight(self, weight, edges=None, copy=False):
    '''Replaces existing edge weights. weight may be a scalar or 1d array.
    edges is a mask or index array that specifies a subset of edges to modify'''
    if not self.is_weighted():
      warnings.warn('Cannot supply weights for unweighted graph; '
                    'ignoring call to reweight')
      return self
    if edges is None:
      return self._update_edges(weight, copy=copy)
    ii, jj = self.pairs()[edges].T
    return self.add_edges(ii, jj, weight=weight, symmetric=False, copy=copy)
def reweight ( self , weight , edges = None , copy = False ) : if not self . is_weighted ( ) : warnings . warn ( 'Cannot supply weights for unweighted graph; ' 'ignoring call to reweight' ) return self if edges is None : return self . _update_edges ( weight , copy = copy ) ii , jj = self . pairs ( ) [ edges ] . T return self . add_edges ( ii , jj , weight = weight , symmetric = False , copy = copy )
Replaces existing edge weights. weight may be a scalar or 1d array.
    edges is a mask or index array that specifies a subset of edges to modify