read_graph6#

read_graph6(path)[source]#

Read simple undirected graphs in graph6 format from path.

Parameters:

pathfile or string: File or filename to write.

Returns:

GGraph or list of Graphs: If the file contains multiple lines then a list of graphs is returned

Raises:

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

See also

from_graph6_bytes, write_graph6

References

[1]

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

Examples

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

>>> import tempfile
>>> with tempfile.NamedTemporaryFile(delete=False) 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)]