Note

This documents the development version of NetworkX. Documentation for the current release can be found here.

networkx.MultiDiGraph.remove_edge

MultiDiGraph.remove_edge(u, v, key=None)[source]

Remove an edge between u and v.

Parameters
u, vnodes

Remove an edge between nodes u and v.

keyhashable identifier, optional (default=None)

Used to distinguish multiple edges between a pair of nodes. If None remove a single (arbitrary) edge between u and v.

Raises
NetworkXError

If there is not an edge between u and v, or if there is no edge with the specified key.

See also

remove_edges_from

remove a collection of edges

Examples

>>> G = nx.MultiDiGraph()
>>> nx.add_path(G, [0, 1, 2, 3])
>>> G.remove_edge(0, 1)
>>> e = (1, 2)
>>> G.remove_edge(*e)  # unpacks e from an edge tuple

For multiple edges

>>> G = nx.MultiDiGraph()
>>> G.add_edges_from([(1, 2), (1, 2), (1, 2)])  # key_list returned
[0, 1, 2]
>>> G.remove_edge(1, 2)  # remove a single (arbitrary) edge

For edges with keys

>>> G = nx.MultiDiGraph()
>>> G.add_edge(1, 2, key="first")
'first'
>>> G.add_edge(1, 2, key="second")
'second'
>>> G.remove_edge(1, 2, key="second")