to_graph6_bytes(G, nodes=None, header=True)[source]¶
Convert a simple undirected graph to bytes in graph6 format.
- G (Graph (undirected))
- nodes (list or iterable) – Nodes are labeled 0…n-1 in the order provided. If None the ordering
- header (bool) – If True add ‘>>graph6<<’ bytes to head of data.
NetworkXNotImplemented– If the graph is directed or is a multigraph.
ValueError– If the graph has at least
2 ** 36nodes; the graph6 format is only defined for graphs of order less than
2 ** 36.
>>> nx.to_graph6_bytes(nx.path_graph(2)) # doctest: +SKIP b'>>graph6<<A_\n'
The returned bytes end with a newline character.
The format does not support edge or node labels, parallel edges or self loops. If self loops are present they are silently ignored.
 Graph6 specification <http://users.cecs.anu.edu.au/~bdm/data/formats.html>