CLN: respond to review comments

Author: ngoldbaum

pandas/core/internals/blocks.py

@@ -2150,11 +2150,13 @@ def is_object(self) -> bool:  # type: ignore[override]
 
 class NumericBlock(NumpyBlock):
     # this Block type is kept for backwards-compatibility
+    # TODO(3.0): delete and remove deprecation in __init__.py.
     __slots__ = ()
 
 
 class ObjectBlock(NumpyBlock):
     # this Block type is kept for backwards-compatibility
+    # TODO(3.0): delete and remove deprecation in __init__.py.
     __slots__ = ()
 
 

pandas/tests/series/test_constructors.py

@@ -2093,6 +2093,7 @@ def test_constructor_no_pandas_array(self, using_array_manager):
         tm.assert_series_equal(ser, result)
         if not using_array_manager:
             assert isinstance(result._mgr.blocks[0], NumpyBlock)
+            assert result._mgr.blocks[0].is_numeric
 
     @td.skip_array_manager_invalid_test
     def test_from_array(self):