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

Directed Acyclic Graphs

ancestors(G, source)	Return all nodes having a path to \(source\) in G.
descendants(G, source)	Return all nodes reachable from \(source\) in G.
topological_sort(G[, nbunch, reverse])	Return a list of nodes in topological sort order.
topological_sort_recursive(G[, nbunch, reverse])	Return a list of nodes in topological sort order.
is_directed_acyclic_graph(G)	Return True if the graph G is a directed acyclic graph (DAG) or
is_aperiodic(G)	Return True if G is aperiodic.