Method reverse

networkx/classes/digraph.py:1344–1363

Returns the reverse of the graph. The reverse is a graph with the same nodes and edges but with the directions of the edges reversed. Parameters ---------- copy : bool optional (default=True) If True, return a new DiGraph holding the reversed edg

(self, copy=True)

        return G

    def reverse(self, copy=True):
        """Returns the reverse of the graph.

        The reverse is a graph with the same nodes and edges
        but with the directions of the edges reversed.

        Parameters
        ----------
        copy : bool optional (default=True)
            If True, return a new DiGraph holding the reversed edges.
            If False, the reverse graph is created using a view of
            the original graph.
        """
        if copy:
            H = self.__class__()
            H.graph.update(deepcopy(self.graph))
            H.add_nodes_from((n, deepcopy(d)) for n, d in self.nodes.items())
            H.add_edges_from((v, u, deepcopy(d)) for u, v, d in self.edges(data=True))
            return H
        return nx.reverse_view(self)