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read_multiline_adjlist(path, comments='#', delimiter=None, create_using=None, nodetype=None, edgetype=None, encoding='utf-8')

Notes

This format does not store graph, node, or edge data.

Parameters

path : string or file

Filename or file handle to read. Filenames ending in .gz or .bz2 will be uncompressed.

create_using : NetworkX graph constructor, optional (default=nx.Graph)

Graph type to create. If graph instance, then cleared before populated.

nodetype : Python type, optional

Convert nodes to this type.

edgetype : Python type, optional

Convert edge data to this type.

comments : string, optional

Marker for comment lines

delimiter : string, optional

Separator for node labels. The default is whitespace.

Returns

G: NetworkX graph

Read graph in multi-line adjacency list format from path.

See Also

write_multiline_adjlist

Examples

>>> G = nx.path_graph(4)
... nx.write_multiline_adjlist(G, "test.adjlist")
... G = nx.read_multiline_adjlist("test.adjlist")

The path can be a file or a string with the name of the file. If a file s provided, it has to be opened in 'rb' mode.

>>> fh = open("test.adjlist", "rb")
... G = nx.read_multiline_adjlist(fh)

Filenames ending in .gz or .bz2 will be compressed.

>>> nx.write_multiline_adjlist(G, "test.adjlist.gz")
... G = nx.read_multiline_adjlist("test.adjlist.gz")

The optional nodetype is a function to convert node strings to nodetype.

For example

>>> G = nx.read_multiline_adjlist("test.adjlist", nodetype=int)

will attempt to convert all nodes to integer type.

The optional edgetype is a function to convert edge data strings to edgetype.

>>> G = nx.read_multiline_adjlist("test.adjlist")

The optional create_using parameter is a NetworkX graph container. The default is Graph(), an undirected graph. To read the data as a directed graph use

>>> G = nx.read_multiline_adjlist("test.adjlist", create_using=nx.DiGraph)
See :

Back References

The following pages refer to to this document either explicitly or contain code examples using this.

networkx.readwrite.multiline_adjlist.write_multiline_adjlist networkx.readwrite.multiline_adjlist.read_multiline_adjlist networkx.readwrite.multiline_adjlist.generate_multiline_adjlist

Local connectivity graph

Hover to see nodes names; edges to Self not shown, Caped at 50 nodes.

Using a canvas is more power efficient and can get hundred of nodes ; but does not allow hyperlinks; , arrows or text (beyond on hover)

SVG is more flexible but power hungry; and does not scale well to 50 + nodes.

All aboves nodes referred to, (or are referred from) current nodes; Edges from Self to other have been omitted (or all nodes would be connected to the central node "self" which is not useful). Nodes are colored by the library they belong to, and scaled with the number of references pointing them


GitHub : /networkx/readwrite/multiline_adjlist.py#302
type: <class 'function'>
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