Warning

This documents an unmaintained version of NetworkX. Please upgrade to a maintained version and see the current NetworkX documentation.

networkx.readwrite.gml.parse_gml

parse_gml(lines, label='label', destringizer=None)[source]

Parse GML graph from a string or iterable.

Parameters:
  • lines (string or iterable of strings) – Data in GML format.
  • label (string, optional) – If not None, the parsed nodes will be renamed according to node attributes indicated by label. Default value: ‘label’.
  • destringizer (callable, optional) – A destringizer that recovers values stored as strings in GML. If it cannot convert a string to a value, a ValueError is raised. Default value : None.
Returns:

G – The parsed graph.
Return type:

NetworkX graph
Raises:

NetworkXError – If the input cannot be parsed.

See also

write_gml(), read_gml(), literal_destringizer()

Notes

This stores nested GML attributes as dictionaries in the NetworkX graph, node, and edge attribute structures.

GML files are stored using a 7-bit ASCII encoding with any extended ASCII characters (iso8859-1) appearing as HTML character entities. Without specifying a stringizer/destringizer, the code is capable of handling int/float/str/dict/list data as required by the GML specification. For other data types, you need to explicitly supply a stringizer/destringizer.

For additional documentation on the GML file format, please see the GML website.

See the module docstring networkx.readwrite.gml for more details.