number_of_nodes(self)

Returns

nnodes : int

The number of nodes in the graph.

Returns the number of nodes in the graph.

See Also

__len__

identical method

order

identical method

Examples

>>> G = nx.path_graph(3)  # or DiGraph, MultiGraph, MultiDiGraph, etc
... G.number_of_nodes()
3

See :

Back References

The following pages refer to to this document either explicitly or contain code examples using this.

networkx.classes.graph.Graph.add_node networkx.classes.graph.Graph.number_of_nodes networkx.generators.classic.empty_graph networkx.generators.sudoku.sudoku_graph networkx.classes.graph.Graph.__len__ networkx.classes.digraph.DiGraph.add_node networkx.classes.graph.Graph.order

Local connectivity graph

Hover to see nodes names; edges to Self not shown, Caped at 50 nodes.

Using a canvas is more power efficient and can get hundred of nodes ; but does not allow hyperlinks; , arrows or text (beyond on hover)

SVG is more flexible but power hungry; and does not scale well to 50 + nodes.

All aboves nodes referred to, (or are referred from) current nodes; Edges from Self to other have been omitted (or all nodes would be connected to the central node "self" which is not useful). Nodes are colored by the library they belong to, and scaled with the number of references pointing them

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GitHub : /networkx/classes/graph.py#758
type: <class 'function'>
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