UserWarning: The given NumPy array is not writable, and PyTorch does not support non-writable tensors.

[hushaoqing]

It is caused by the OWNDATA and WRITEABLE flags

  C_CONTIGUOUS : True
  F_CONTIGUOUS : False
  OWNDATA : False
  WRITEABLE : False
  ALIGNED : True
  WRITEBACKIFCOPY : False