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Note

This documents the development version of NetworkX. Documentation for the current release can be found here.

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networkx.readwrite.sparse6.read_sparse6¶

read_sparse6(path)[source]¶

Read an undirected graph in sparse6 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/Multigraph or list of Graphs/MultiGraphs
Raises: NetworkXError – If the string is unable to be parsed in sparse6 format

Examples

You can read a sparse6 file by giving the path to the file:

>>> import tempfile
>>> with tempfile.NamedTemporaryFile() as f:
...     _ = f.write(b">>sparse6<<:An\n")
...     _ = f.seek(0)
...     G = nx.read_sparse6(f.name)
>>> list(G.edges())
[(0, 1)]

You can also read a sparse6 file by giving an open file-like object:

>>> import tempfile
>>> with tempfile.NamedTemporaryFile() as f:
...     _ = f.write(b">>sparse6<<:An\n")
...     _ = f.seek(0)
...     G = nx.read_sparse6(f)
>>> list(G.edges())
[(0, 1)]