Update gem/gem.py

Co-authored-by: David A. Ham <[email protected]>

gem/gem.py

@@ -420,7 +420,7 @@ def __new__(cls, a, b):
         assert not a.shape
         assert not b.shape
         dtype = Node.inherit_dtype_from_children([a, b])
-        if dtype != uint_type:
+        if dtype is not uint_type:
             raise ValueError(f"dtype ({dtype}) != uint_type ({uint_type})")
         # Constant folding
         if isinstance(b, Zero):