diff --git a/Lib/test/test_ast.py b/Lib/test/test_ast.py
index e665abad9b9e85..5422c861ffb5c0 100644
--- a/Lib/test/test_ast.py
+++ b/Lib/test/test_ast.py
@@ -3039,15 +3039,15 @@ def test_FunctionDef(self):
     def test_expr_context(self):
         name = ast.Name("x")
         self.assertEqual(name.id, "x")
-        self.assertEqual(name.ctx, ast.Load())
+        self.assertIsInstance(name.ctx, ast.Load)
 
         name2 = ast.Name("x", ast.Store())
         self.assertEqual(name2.id, "x")
-        self.assertEqual(name2.ctx, ast.Store())
+        self.assertIsInstance(name2.ctx, ast.Store)
 
         name3 = ast.Name("x", ctx=ast.Del())
         self.assertEqual(name3.id, "x")
-        self.assertEqual(name3.ctx, ast.Del())
+        self.assertIsInstance(name3.ctx, ast.Del)
 
         with self.assertWarnsRegex(DeprecationWarning,
                                    r"Name\.__init__ missing 1 required positional argument: 'id'"):
diff --git a/Parser/asdl_c.py b/Parser/asdl_c.py
index cd70b8784ebb5c..9961d23629abc5 100755
--- a/Parser/asdl_c.py
+++ b/Parser/asdl_c.py
@@ -1034,8 +1034,8 @@ def visitModule(self, mod):
                 if (PyErr_WarnFormat(
                     PyExc_DeprecationWarning, 1,
                     "%.400s.__init__ missing 1 required positional argument: '%U'. "
-                    "This will become an error in Python 3.15. %R",
-                    Py_TYPE(self)->tp_name, name, type
+                    "This will become an error in Python 3.15.",
+                    Py_TYPE(self)->tp_name, name
                 ) < 0) {
                     goto set_remaining_cleanup;
                 }
diff --git a/Python/Python-ast.c b/Python/Python-ast.c
index d2e5fcc20e65d6..7aa1c5119d8f28 100644
--- a/Python/Python-ast.c
+++ b/Python/Python-ast.c
@@ -5233,8 +5233,8 @@ ast_type_init(PyObject *self, PyObject *args, PyObject *kw)
                 if (PyErr_WarnFormat(
                     PyExc_DeprecationWarning, 1,
                     "%.400s.__init__ missing 1 required positional argument: '%U'. "
-                    "This will become an error in Python 3.15. %R",
-                    Py_TYPE(self)->tp_name, name, type
+                    "This will become an error in Python 3.15.",
+                    Py_TYPE(self)->tp_name, name
                 ) < 0) {
                     goto set_remaining_cleanup;
                 }