TypeError

[Jone-Luo]

how can I fix this error?

[Jone-Luo]

after convert ind to int(ind), this error has gone. But there still has one PicklingError with the last sentence pickle.dump(g, f)

anyone has idea?

[Jone-Luo]

solved，networkx should be 1.x, instead of 2.x
and the second error can be fixed just restart the kernel