networkx.MultiGraph.new_edge_key¶
-
MultiGraph.
new_edge_key
(u, v)[source]¶ Returns an unused key for edges between nodes
u
andv
.The nodes
u
andv
do not need to be already in the graph.Notes
In the standard MultiGraph class the new key is the number of existing edges between
u
andv
(increased if necessary to ensure unused). The first edge will have key 0, then 1, etc. If an edge is removed further new_edge_keys may not be in this order.- Parameters
u, v (nodes)
- Returns
key
- Return type