updated 2d array case

Author: sharkipelago

pandas/core/internals/blocks.py

@@ -262,7 +262,7 @@ def make_block_same_class(
 
     @final
     def __repr__(self) -> str:
-        # don't want to      out all of the items here
+        # don't want to print out all of the items here
         name = type(self).__name__
         if self.ndim == 1:
             result = f"{name}: {len(self)} dtype: {self.dtype}"
@@ -1514,12 +1514,13 @@ def round(self, decimals: int) -> Self:
         """
         if self.dtype == _dtype_obj:
             round_func = functools.partial(round, ndigits=decimals)
-            mapper = functools.partial(algos.map_array, mapper=round_func)
             try:
                 if self.values.ndim == 1:
                     values = algos.map_array(self.values, round_func)
                 else:
-                    values = np.apply_along_axis(mapper, 0, self.values)
+                    values = algos.map_array(self.values.ravel(), round_func).reshape(
+                        self.values.shape
+                    )
             except TypeError as err:
                 raise TypeError("Expected numeric entries for dtype object.") from err