Updated #58748 and Added Test

Author: SiddheshBangar

pandas/core/computation/ops.py

@@ -509,7 +509,9 @@ def _disallow_scalar_only_bool_ops(self) -> None:
 
 
 def isnumeric(dtype) -> bool:
-    return getattr(dtype, '_is_numeric', False) or issubclass(np.dtype(dtype).type, np.number)
+    return getattr(dtype, "_is_numeric", False) or issubclass(
+        np.dtype(dtype).type, np.number
+    )
 
 
 class Div(BinOp):

pandas/tests/extension/test_datetime.py

@@ -88,6 +88,13 @@ def cmp(a, b):
     return cmp
 
 
+@pytest.fixture
+def isnumeric(dtype):
+    return getattr(dtype, "is_numeric", False) or issubclass(
+        np.dtype(dtype).type, np.number
+    )
+
+
 # ----------------------------------------------------------------------------
 class TestDatetimeArray(base.ExtensionTests):
     def _get_expected_exception(self, op_name, obj, other):