Warning

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

is_connected

is_connected(G)[source]

Return True if the graph is connected, false otherwise.

Parameters :

G : NetworkX Graph

An undirected graph.
Returns :

connected : bool

True if the graph is connected, false otherwise.

See also

connected_components

Notes

For undirected graphs only.

Examples

>>> G = nx.path_graph(4)
>>> print(nx.is_connected(G))
True