Document

write_graph6(G, path, nodes=None, header=True)

Notes

The function writes a newline character after writing the encoding of the graph.

The format does not support edge or node labels, parallel edges or self loops. If self loops are present they are silently ignored.

Parameters

G : Graph (undirected)
path : str: The path naming the file to which to write the graph.
nodes: list or iterable :: Nodes are labeled 0...n-1 in the order provided. If None the ordering given by G.nodes() is used.
header: bool :: If True add '>>graph6<<' string to head of data

Raises

NetworkXNotImplemented: If the graph is directed or is a multigraph.
ValueError: If the graph has at least 2 ** 36 nodes; the graph6 format is only defined for graphs of order less than 2 ** 36 .

Write a simple undirected graph to a path in graph6 format.

Examples

>>> import tempfile
>>> with tempfile.NamedTemporaryFile() as f:
...     nx.write_graph6(nx.path_graph(2), f.name)
...     _ = f.seek(0)
...     print(f.read())
b'>>graph6<<A_\n'

See :

Back References

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

networkx.readwrite.graph6.read_graph6 networkx.readwrite.graph6.from_graph6_bytes

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