networkx.readwrite.graph6.read_graph6

read_graph6(path)[source]

Read simple undirected graphs in graph6 format from path.

Parameters

path (file or string) – File or filename to write.

Returns

G – If the file contains multiple lines then a list of graphs is returned

Return type

Graph or list of Graphs

Raises

NetworkXError – If the string is unable to be parsed in graph6 format

Examples

You can read a graph6 file by giving the path to the file:

>>> import tempfile
>>> with tempfile.NamedTemporaryFile() as f:
...     _ = f.write(b'>>graph6<<A_\n')
...     _ = f.seek(0)
...     G = nx.read_graph6(f.name)
>>> list(G.edges())
[(0, 1)]

You can also read a graph6 file by giving an open file-like object:

>>> import tempfile
>>> with tempfile.NamedTemporaryFile() as f:
...     _ = f.write(b'>>graph6<<A_\n')
...     _ = f.seek(0)
...     G = nx.read_graph6(f)
>>> list(G.edges())
[(0, 1)]

References

1

Graph6 specification <http://users.cecs.anu.edu.au/~bdm/data/formats.html>