Warning

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

nodes_with_selfloops

DiGraph.nodes_with_selfloops()

Return a list of nodes with self loops.

A node with a self loop has an edge with both ends adjacent to that node.

Returns :

nodelist : list

A list of nodes with self loops.

See also

selfloop_edges, number_of_selfloops

Examples

>>> G = nx.Graph()   # or DiGraph, MultiGraph, MultiDiGraph, etc
>>> G.add_edge(1,1)
>>> G.add_edge(1,2)
>>> G.nodes_with_selfloops()
[1]