Print sorted node data

For easier comparisons.

Trajectories/Tests/segments_networkx.py

@@ -24,6 +24,6 @@ for n in G:
                 G.add_edge(n2, n3)
 
 G.remove_nodes_from(nbunch)
-print(G.nodes.data())
+for k in sorted(G.nodes): print(k, G.nodes[k])
 A = nx_agraph.to_agraph(G)
 A.write(sys.argv[2])