A few months ago, you can also use the Networkx package in Python. Recently, you rerun the previous code and report the following error

Network error: random_state_index is incorrect

Now the landlord has solved this problem. The specific steps are as follows:

First: open Anaconda prompt (Anaconda 3), demote Networkx package and decorator package, and enter the following code:

pip install --user decorator==4.3.0
pip install --user networkx==2.3

Second: turn off Anaconda prompt (Anaconda 3) and reopen Python to run without problem.