avoding torch dependecies, checking type.__name__ instead of th e instance

Author: noklam

tsensor/analysis.py

@@ -24,7 +24,6 @@
 import os
 import sys
 import traceback
-import torch
 import inspect
 import hashlib
 
@@ -457,7 +456,7 @@ def istensor(x):
 def _shape(v):
     # do we have a shape and it answers len()? Should get stuff right.
     if hasattr(v, "shape") and hasattr(v.shape,"__len__"):
-        if isinstance(v.shape, torch.Size):
+        if type(v.shape).__name__ == "Size":
             if len(v.shape)==0:
                 return None
             return list(v.shape)