TreeB-450

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the same qusetion, how to deal?

> Hi, can you tell me which operating system did you use to install xuanpolicy? win10

> You can try to install an MPI program from [here](https://www.microsoft.com/en-us/download/details.aspx?id=57467). Then, reinstall mpi4py: `pip uninstall mpi4py` `pip install mpi4py` no, it didn't work. a new error appear "OSError: [WinError...