I tried one of the examples (example 3 in DiGraph?)

g = DiGraph({0:{1:'x',2:'z',3:'a'}, 2:{5:'out'}},
implementation='networkx'); show(g)

However, I don't see any label of the edges, why?

Also, I think the DiGraph function is very useful for drawing finite
automata (thanks!) My question is: does it support loop to a node?
(which is essential in drawing automata)


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