Swap

Swap edges in a graph.

double_edge_swap(G[, nswap, max_tries, seed])	Swap two edges in the graph while keeping the node degrees fixed.
directed_edge_swap(G, *[, nswap, max_tries, ...])	Swap three edges in a directed graph while keeping the node degrees fixed.
connected_double_edge_swap(G[, nswap, ...])	Attempts the specified number of double-edge swaps in the graph G.