a 1b@s*dZddlZddgZddZdddZdS) zUnary operations on graphsN complementreversecs2}||fddD|S)aiReturns the graph complement of G. Parameters ---------- G : graph A NetworkX graph Returns ------- GC : A new graph. Notes ----- Note that `complement` does not create self-loops and also does not produce parallel edges for MultiGraphs. Graph, node, and edge data are not propagated to the new graph. c3s4|],\}}D]}||vr||kr||fVqqdS)N).0nZnbrsZn2GrBlib/python3.9/site-packages/networkx/algorithms/operators/unary.py zcomplement..) __class__Zadd_nodes_fromZadd_edges_fromZ adjacency)rRrrr rs  TcCs$|stdn |j|dSdS)aDReturns the reverse directed graph of G. Parameters ---------- G : directed graph A NetworkX directed graph copy : bool If True, then a new graph is returned. If False, then the graph is reversed in place. Returns ------- H : directed graph The reversed G. z#Cannot reverse an undirected graph.)copyN)Z is_directednxZ NetworkXErrorr)rrrrr r"s )T)__doc__Znetworkxr__all__rrrrrr s