Module 'torch.sparse' has no attribute 'torch'

This error occurs when I use pytorch in windows or in ppc64le.
My code is just like torch.sparse.torch.eye(…).
And it gives this error.
But when the code run in x86 linux, there is nothing happen.
so the torch.sparse do not support windows?
Note: my Environment is window 10, anaconda3, python 3.6, install pytorch with conda, cuda8.0.
I don’t know how to categorize this topic. If I should, plz tell me.