GraphML¶

Read and write graphs in GraphML format.

This implementation does not support mixed graphs (directed and unidirected edges together), hyperedges, nested graphs, or ports.

“GraphML is a comprehensive and easy-to-use file format for graphs. It consists of a language core to describe the structural properties of a graph and a flexible extension mechanism to add application-specific data. Its main features include support of

directed, undirected, and mixed graphs,

hypergraphs,

hierarchical graphs,

graphical representations,

references to external data,

application-specific attribute data, and

light-weight parsers.

Unlike many other file formats for graphs, GraphML does not use a custom syntax. Instead, it is based on XML and hence ideally suited as a common denominator for all kinds of services generating, archiving, or processing graphs.”

http://graphml.graphdrawing.org/

Format¶

GraphML is an XML format. See http://graphml.graphdrawing.org/specification.html for the specification and http://graphml.graphdrawing.org/primer/graphml-primer.html for examples.

`read_graphml`(path[, node_type, edge_key_type])	Read graph in GraphML format from path.
`write_graphml`(G, path[, encoding, …])	Write G in GraphML XML format to path