isna

Author: andrewgsavage

pandas/core/arrays/base.py

@@ -2265,7 +2265,10 @@ def round(self, decimals: int = 0, *args, **kwargs) -> Self:
                 f"Cannot round {type(self)} dtype as it is non-numeric or boolean"
             )
         return self._from_sequence(
-            [round(element) if not isna(element) else element for element in self],
+            [
+                round(element) if not element_isna else element
+                for (element, element_isna) in zip(self, self.isna())
+            ],
             dtype=self.dtype,
         )
 

pandas/tests/extension/test_datetime.py

@@ -138,12 +138,11 @@ def check_reduce(self, ser: pd.Series, op_name: str, skipna: bool):
 
         else:
             return super().check_reduce(ser, op_name, skipna)
-        
+
     @pytest.mark.skip("DatetimeArray uses a different function signature for round")
     def test_round(self):
         pass
 
 
-
 class Test2DCompat(base.NDArrayBacked2DTests):
     pass