networkx.readwrite.adjlist.parse_adjlist¶
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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.
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) >>> nodes = [1, 2, 3, 4, 5] >>> all(node in G for node in nodes) True >>> edges = [(1, 2), (1, 5), (2, 3), (2, 4), (3, 5)] >>> all((u, v) in G.edges() or (v, u) in G.edges() for (u, v) in edges) True
See also