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Note

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

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networkx.algorithms.components.is_connected

is_connected(G)

Returns True if the graph is connected, False otherwise.

Parameters

G (NetworkX Graph) – An undirected graph.

Returns

connected – True if the graph is connected, false otherwise.

Return type

bool

Raises

NetworkXNotImplemented – If G is directed.

Examples

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

See also

is_strongly_connected(), is_weakly_connected(), is_semiconnected(), is_biconnected(), connected_components()

Notes

For undirected graphs only.