xidulu commented on a change in pull request #18689:
URL: https://github.com/apache/incubator-mxnet/pull/18689#discussion_r453144899



##########
File path: python/mxnet/gluon/probability/distributions/utils.py
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@@ -48,7 +51,10 @@ def compute(value):
         """Return digamma(value)
         """
         if isinstance(value, Number):
-            return sc.digamma(value, dtype='float32')
+            if sc is not None:
+                return sc.digamma(value, dtype='float32')

Review comment:
       @szha  Ur right, this decorator should be taking into account. 
   I will try to figure out a way to let these utilities be aware of the type 
flag.




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