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

# Components¶

## Connectivity¶

Connected components.

is_connected(G) |
Return True if the graph is connected, false otherwise. |

number_connected_components(G) |
Return the number of connected components. |

connected_components(G) |
Generate connected components. |

connected_component_subgraphs(G[, copy]) |
Generate connected components as subgraphs. |

node_connected_component(G, n) |
Return the nodes in the component of graph containing node n. |

## Strong connectivity¶

Strongly connected components.

is_strongly_connected(G) |
Test directed graph for strong connectivity. |

number_strongly_connected_components(G) |
Return number of strongly connected components in graph. |

strongly_connected_components(G) |
Generate nodes in strongly connected components of graph. |

strongly_connected_component_subgraphs(G[, copy]) |
Generate strongly connected components as subgraphs. |

strongly_connected_components_recursive(G) |
Generate nodes in strongly connected components of graph. |

kosaraju_strongly_connected_components(G[, ...]) |
Generate nodes in strongly connected components of graph. |

condensation(G[, scc]) |
Returns the condensation of G. |

## Weak connectivity¶

Weakly connected components.

is_weakly_connected(G) |
Test directed graph for weak connectivity. |

number_weakly_connected_components(G) |
Return the number of connected components in G. |

weakly_connected_components(G) |
Generate weakly connected components of G. |

weakly_connected_component_subgraphs(G[, copy]) |
Generate weakly connected components as subgraphs. |

## Attracting components¶

Attracting components.

is_attracting_component(G) |
Returns True if \(G\) consists of a single attracting component. |

number_attracting_components(G) |
Returns the number of attracting components in \(G\). |

attracting_components(G) |
Generates a list of attracting components in \(G\). |

attracting_component_subgraphs(G[, copy]) |
Generates a list of attracting component subgraphs from \(G\). |

## Biconnected components¶

Biconnected components and articulation points.

is_biconnected(G) |
Return True if the graph is biconnected, False otherwise. |

biconnected_components(G) |
Return a generator of sets of nodes, one set for each biconnected |

biconnected_component_edges(G) |
Return a generator of lists of edges, one list for each biconnected component of the input graph. |

biconnected_component_subgraphs(G[, copy]) |
Return a generator of graphs, one graph for each biconnected component of the input graph. |

articulation_points(G) |
Return a generator of articulation points, or cut vertices, of a graph. |

## Semiconnectedness¶

Semiconnectedness.

is_semiconnected(G) |
Return True if the graph is semiconnected, False otherwise. |