using anaconda, running demo line, getting:
  'CUDA_VISIBLE_DEVICES' is not recognized as an internal or external command,

so, removed this from the front (set ENV in a separate line), getting:
import lzma
  File "C:\Users\the_i\.conda\envs\thin-plate-spline\lib\lzma.py", line 27, in <module>
    from _lzma import *
ImportError: DLL load failed while importing _lzma: The specified module could not be found.