parse_adjlist¶

parse_adjlist(lines, comments='#', delimiter=None, create_using=None, nodetype=None)[source]¶

Parse lines of a graph adjacency list representation.

Parameters:	lines (list or iterator of strings) – Input data in adjlist format create_using (NetworkX graph container) – Use given NetworkX graph for holding nodes or edges. nodetype (Python type, optional) – Convert nodes to this type. comments (string, optional) – Marker for comment lines delimiter (string, optional) – Separator for node labels. The default is whitespace. create_using – Use given NetworkX graph for holding nodes or edges.
Returns:	G – The graph corresponding to the lines in adjacency list format.
Return type:	NetworkX graph

Examples

>>> lines = ['1 2 5',
...          '2 3 4',
...          '3 5',
...          '4',
...          '5']
>>> G = nx.parse_adjlist(lines, nodetype = int)
>>> G.nodes()
[1, 2, 3, 4, 5]
>>> G.edges()
[(1, 2), (1, 5), (2, 3), (2, 4), (3, 5)]