Solved by sakaia in post #2 
              
              
                It seems DSS-python problem. (This issue should be closed) 
From  https://github.com/AceCoooool/DSS-pytorch/issues/4#issuecomment-407290569 
  AceCoooool commented an hour ago
  It's my fault， please change line34 in dataset.py（zenCompose to Compose）