diff --git a/Lib/test/test_bool.py b/Lib/test/test_bool.py
index 9f8f0e1..1e6ec19 100644
--- a/Lib/test/test_bool.py
+++ b/Lib/test/test_bool.py
@@ -170,6 +170,10 @@ class BoolTest(unittest.TestCase):
         self.assertIs(bool(""), False)
         self.assertIs(bool(), False)
 
+    def test_keyword_args(self):
+        with self.assertWarns(DeprecationWarning):
+            self.assertIs(bool(x=10), True)
+
     def test_format(self):
         self.assertEqual("%d" % False, "0")
         self.assertEqual("%d" % True, "1")
diff --git a/Lib/test/test_float.py b/Lib/test/test_float.py
index ac8473d..91e3b7a 100644
--- a/Lib/test/test_float.py
+++ b/Lib/test/test_float.py
@@ -208,6 +208,10 @@ class GeneralFloatCases(unittest.TestCase):
         with self.assertWarns(DeprecationWarning):
             self.assertIs(type(FloatSubclass(F())), FloatSubclass)
 
+    def test_keyword_args(self):
+        with self.assertWarns(DeprecationWarning):
+            self.assertEqual(float(x='3.14'), 3.14)
+
     def test_is_integer(self):
         self.assertFalse((1.1).is_integer())
         self.assertTrue((1.).is_integer())
diff --git a/Lib/test/test_int.py b/Lib/test/test_int.py
index 14bbd61..db96967 100644
--- a/Lib/test/test_int.py
+++ b/Lib/test/test_int.py
@@ -246,9 +246,11 @@ class IntTestCases(unittest.TestCase):
 
     def test_keyword_args(self):
         # Test invoking int() using keyword arguments.
-        self.assertEqual(int(x=1.2), 1)
+        with self.assertWarns(DeprecationWarning):
+            self.assertEqual(int(x=1.2), 1)
         self.assertEqual(int('100', base=2), 4)
-        self.assertEqual(int(x='100', base=2), 4)
+        with self.assertWarns(DeprecationWarning):
+            self.assertEqual(int(x='100', base=2), 4)
         self.assertRaises(TypeError, int, base=10)
         self.assertRaises(TypeError, int, base=0)
 
diff --git a/Objects/boolobject.c b/Objects/boolobject.c
index 31510bb..795112b 100644
--- a/Objects/boolobject.c
+++ b/Objects/boolobject.c
@@ -48,6 +48,11 @@ bool_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 
     if (!PyArg_ParseTupleAndKeywords(args, kwds, "|O:bool", kwlist, &x))
         return NULL;
+    if (kwds != NULL && PyDict_GET_SIZE(kwds) != 0) {
+        if (PyErr_Warn(PyExc_DeprecationWarning,
+            "The \"x\" keyword argument of bool() is deprecated") < 0)
+            return NULL;
+    }
     ok = PyObject_IsTrue(x);
     if (ok < 0)
         return NULL;
diff --git a/Objects/floatobject.c b/Objects/floatobject.c
index 17a55dd..5b229d5 100644
--- a/Objects/floatobject.c
+++ b/Objects/floatobject.c
@@ -1569,6 +1569,11 @@ float_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
         return float_subtype_new(type, args, kwds); /* Wimp out */
     if (!PyArg_ParseTupleAndKeywords(args, kwds, "|O:float", kwlist, &x))
         return NULL;
+    if (kwds != NULL && PyDict_GET_SIZE(kwds) != 0) {
+        if (PyErr_Warn(PyExc_DeprecationWarning,
+            "The \"x\" keyword argument of float() is deprecated") < 0)
+            return NULL;
+    }
     /* If it's a string, but not a string subclass, use
        PyFloat_FromString. */
     if (PyUnicode_CheckExact(x))
diff --git a/Objects/longobject.c b/Objects/longobject.c
index 0bf6cee..2f50934 100644
--- a/Objects/longobject.c
+++ b/Objects/longobject.c
@@ -4811,6 +4811,11 @@ long_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
         }
         return PyLong_FromLong(0L);
     }
+    if (PyTuple_GET_SIZE(args) == 0) {
+        if (PyErr_Warn(PyExc_DeprecationWarning,
+            "The \"x\" keyword argument of int() is deprecated") < 0)
+            return NULL;
+    }
     if (obase == NULL)
         return PyNumber_Long(x);