generate_sparse6¶

generate_sparse6(G, nodes=None, header=True)[source]¶

Generate sparse6 format string from an undirected graph.

Parameters:	G : Graph (undirected) 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 ‘>>sparse6<<’ string to head of data
Returns:	s : string String in sparse6 format
Raises:	NetworkXError If the graph is directed

See also

read_sparse6, parse_sparse6, write_sparse6

Notes

The format does not support edge or node labels. References ———- Sparse6 specification: http://cs.anu.edu.au/~bdm/data/formats.txt for details.

Examples

>>> G = nx.MultiGraph([(0, 1), (0, 1), (0, 1)])
>>> nx.generate_sparse6(G)
'>>sparse6<<:A_'