diff --git a/Modules/_asynciomodule.c b/Modules/_asynciomodule.c
index d394002c065..fa94a65f1ce 100644
--- a/Modules/_asynciomodule.c
+++ b/Modules/_asynciomodule.c
@@ -3391,9 +3391,6 @@ PyInit__asyncio(void)
     if (module_init() < 0) {
         return NULL;
     }
-    if (PyType_Ready(&FutureType) < 0) {
-        return NULL;
-    }
     if (PyType_Ready(&FutureIterType) < 0) {
         return NULL;
     }
@@ -3403,9 +3400,6 @@ PyInit__asyncio(void)
     if (PyType_Ready(&TaskWakeupMethWrapper_Type) < 0) {
         return NULL;
     }
-    if (PyType_Ready(&TaskType) < 0) {
-        return NULL;
-    }
     if (PyType_Ready(&PyRunningLoopHolder_Type) < 0) {
         return NULL;
     }
@@ -3415,16 +3409,13 @@ PyInit__asyncio(void)
         return NULL;
     }
 
-    Py_INCREF(&FutureType);
-    if (PyModule_AddObject(m, "Future", (PyObject *)&FutureType) < 0) {
-        Py_DECREF(&FutureType);
+    /* FutureType and TaskType are made ready by PyModule_AddType() calls below. */
+    if (PyModule_AddType(m, &FutureType) < 0) {
         Py_DECREF(m);
         return NULL;
     }
 
-    Py_INCREF(&TaskType);
-    if (PyModule_AddObject(m, "Task", (PyObject *)&TaskType) < 0) {
-        Py_DECREF(&TaskType);
+    if (PyModule_AddType(m, &TaskType) < 0) {
         Py_DECREF(m);
         return NULL;
     }
diff --git a/Modules/_blake2/blake2module.c b/Modules/_blake2/blake2module.c
index 9d280a9ccd5..ff142c9f3ed 100644
--- a/Modules/_blake2/blake2module.c
+++ b/Modules/_blake2/blake2module.c
@@ -63,13 +63,10 @@ PyInit__blake2(void)
 
     /* BLAKE2b */
     Py_SET_TYPE(&PyBlake2_BLAKE2bType, &PyType_Type);
-    if (PyType_Ready(&PyBlake2_BLAKE2bType) < 0) {
+    if (PyModule_AddType(m, &PyBlake2_BLAKE2bType) < 0) {
         return NULL;
     }
 
-    Py_INCREF(&PyBlake2_BLAKE2bType);
-    PyModule_AddObject(m, "blake2b", (PyObject *)&PyBlake2_BLAKE2bType);
-
     d = PyBlake2_BLAKE2bType.tp_dict;
     ADD_INT(d, "SALT_SIZE", BLAKE2B_SALTBYTES);
     ADD_INT(d, "PERSON_SIZE", BLAKE2B_PERSONALBYTES);
@@ -83,13 +80,10 @@ PyInit__blake2(void)
 
     /* BLAKE2s */
     Py_SET_TYPE(&PyBlake2_BLAKE2sType, &PyType_Type);
-    if (PyType_Ready(&PyBlake2_BLAKE2sType) < 0) {
+    if (PyModule_AddType(m, &PyBlake2_BLAKE2sType) < 0) {
         return NULL;
     }
 
-    Py_INCREF(&PyBlake2_BLAKE2sType);
-    PyModule_AddObject(m, "blake2s", (PyObject *)&PyBlake2_BLAKE2sType);
-
     d = PyBlake2_BLAKE2sType.tp_dict;
     ADD_INT(d, "SALT_SIZE", BLAKE2S_SALTBYTES);
     ADD_INT(d, "PERSON_SIZE", BLAKE2S_PERSONALBYTES);
diff --git a/Modules/_bz2module.c b/Modules/_bz2module.c
index fe588098987..008aef0555f 100644
--- a/Modules/_bz2module.c
+++ b/Modules/_bz2module.c
@@ -731,24 +731,11 @@ static PyTypeObject BZ2Decompressor_Type = {
 static int
 _bz2_exec(PyObject *module)
 {
-    if (PyType_Ready(&BZ2Compressor_Type) < 0) {
-        return -1;
-    }
-    if (PyType_Ready(&BZ2Decompressor_Type) < 0) {
+    if (PyModule_AddType(module, &BZ2Compressor_Type) < 0) {
         return -1;
     }
 
-    Py_INCREF(&BZ2Compressor_Type);
-    if (PyModule_AddObject(module, "BZ2Compressor",
-                           (PyObject *)&BZ2Compressor_Type) < 0) {
-        Py_DECREF(&BZ2Compressor_Type);
-        return -1;
-    }
-
-    Py_INCREF(&BZ2Decompressor_Type);
-    if (PyModule_AddObject(module, "BZ2Decompressor",
-                           (PyObject *)&BZ2Decompressor_Type) < 0) {
-        Py_INCREF(&BZ2Decompressor_Type);
+    if (PyModule_AddType(module, &BZ2Decompressor_Type) < 0) {
         return -1;
     }
 
diff --git a/Modules/_csv.c b/Modules/_csv.c
index 968a3d0c7f8..9c497154ffb 100644
--- a/Modules/_csv.c
+++ b/Modules/_csv.c
@@ -1633,9 +1633,6 @@ PyInit__csv(void)
     PyObject *module;
     const StyleDesc *style;
 
-    if (PyType_Ready(&Dialect_Type) < 0)
-        return NULL;
-
     if (PyType_Ready(&Reader_Type) < 0)
         return NULL;
 
@@ -1671,10 +1668,9 @@ PyInit__csv(void)
             return NULL;
     }
 
-    /* Add the Dialect type */
-    Py_INCREF(&Dialect_Type);
-    if (PyModule_AddObject(module, "Dialect", (PyObject *)&Dialect_Type))
+    if (PyModule_AddType(module, &Dialect_Type)) {
         return NULL;
+    }
 
     /* Add the CSV exception object to the module. */
     get_csv_state(module)->error_obj = PyErr_NewException("_csv.Error", NULL, NULL);
diff --git a/Modules/_cursesmodule.c b/Modules/_cursesmodule.c
index ee33107ed62..3d16af7f0a3 100644
--- a/Modules/_cursesmodule.c
+++ b/Modules/_cursesmodule.c
@@ -4740,7 +4740,8 @@ PyInit__curses(void)
         SetDictInt("KEY_MAX", KEY_MAX);
     }
 
-    Py_INCREF(&PyCursesWindow_Type);
-    PyModule_AddObject(m, "window", (PyObject *)&PyCursesWindow_Type);
+    if (PyModule_AddType(m, &PyCursesWindow_Type) < 0) {
+        return NULL;
+    }
     return m;
 }
diff --git a/Modules/_datetimemodule.c b/Modules/_datetimemodule.c
index 4c985b37385..f7c1b69def3 100644
--- a/Modules/_datetimemodule.c
+++ b/Modules/_datetimemodule.c
@@ -6386,18 +6386,20 @@ PyInit__datetime(void)
     if (m == NULL)
         return NULL;
 
-    if (PyType_Ready(&PyDateTime_DateType) < 0)
-        return NULL;
-    if (PyType_Ready(&PyDateTime_DateTimeType) < 0)
-        return NULL;
-    if (PyType_Ready(&PyDateTime_DeltaType) < 0)
-        return NULL;
-    if (PyType_Ready(&PyDateTime_TimeType) < 0)
-        return NULL;
-    if (PyType_Ready(&PyDateTime_TZInfoType) < 0)
-        return NULL;
-    if (PyType_Ready(&PyDateTime_TimeZoneType) < 0)
-        return NULL;
+    PyTypeObject *types[] = {
+        &PyDateTime_DateType,
+        &PyDateTime_DateTimeType,
+        &PyDateTime_TimeType,
+        &PyDateTime_DeltaType,
+        &PyDateTime_TZInfoType,
+        &PyDateTime_TimeZoneType
+    };
+
+    for (size_t i = 0; i < Py_ARRAY_LENGTH(types); i++) {
+        if (PyModule_AddType(m, types[i]) < 0) {
+            return NULL;
+        }
+    }
 
     /* timedelta values */
     d = PyDateTime_DeltaType.tp_dict;
@@ -6515,25 +6517,6 @@ PyInit__datetime(void)
     PyModule_AddIntMacro(m, MINYEAR);
     PyModule_AddIntMacro(m, MAXYEAR);
 
-    Py_INCREF(&PyDateTime_DateType);
-    PyModule_AddObject(m, "date", (PyObject *) &PyDateTime_DateType);
-
-    Py_INCREF(&PyDateTime_DateTimeType);
-    PyModule_AddObject(m, "datetime",
-                       (PyObject *)&PyDateTime_DateTimeType);
-
-    Py_INCREF(&PyDateTime_TimeType);
-    PyModule_AddObject(m, "time", (PyObject *) &PyDateTime_TimeType);
-
-    Py_INCREF(&PyDateTime_DeltaType);
-    PyModule_AddObject(m, "timedelta", (PyObject *) &PyDateTime_DeltaType);
-
-    Py_INCREF(&PyDateTime_TZInfoType);
-    PyModule_AddObject(m, "tzinfo", (PyObject *) &PyDateTime_TZInfoType);
-
-    Py_INCREF(&PyDateTime_TimeZoneType);
-    PyModule_AddObject(m, "timezone", (PyObject *) &PyDateTime_TimeZoneType);
-
     x = PyCapsule_New(&CAPI, PyDateTime_CAPSULE_NAME, NULL);
     if (x == NULL)
         return NULL;
diff --git a/Modules/_io/_iomodule.c b/Modules/_io/_iomodule.c
index 5ceae62f57a..e880992070d 100644
--- a/Modules/_io/_iomodule.c
+++ b/Modules/_io/_iomodule.c
@@ -684,12 +684,8 @@ PyInit__io(void)
     state = get_io_state(m);
     state->initialized = 0;
 
-#define ADD_TYPE(type, name) \
-    if (PyType_Ready(type) < 0) \
-        goto fail; \
-    Py_INCREF(type); \
-    if (PyModule_AddObject(m, name, (PyObject *)type) < 0) {  \
-        Py_DECREF(type); \
+#define ADD_TYPE(type) \
+    if (PyModule_AddType(m, type) < 0) {  \
         goto fail; \
     }
 
@@ -717,54 +713,54 @@ PyInit__io(void)
     /* Concrete base types of the IO ABCs.
        (the ABCs themselves are declared through inheritance in io.py)
     */
-    ADD_TYPE(&PyIOBase_Type, "_IOBase");
-    ADD_TYPE(&PyRawIOBase_Type, "_RawIOBase");
-    ADD_TYPE(&PyBufferedIOBase_Type, "_BufferedIOBase");
-    ADD_TYPE(&PyTextIOBase_Type, "_TextIOBase");
+    ADD_TYPE(&PyIOBase_Type);
+    ADD_TYPE(&PyRawIOBase_Type);
+    ADD_TYPE(&PyBufferedIOBase_Type);
+    ADD_TYPE(&PyTextIOBase_Type);
 
     /* Implementation of concrete IO objects. */
     /* FileIO */
     PyFileIO_Type.tp_base = &PyRawIOBase_Type;
-    ADD_TYPE(&PyFileIO_Type, "FileIO");
+    ADD_TYPE(&PyFileIO_Type);
 
     /* BytesIO */
     PyBytesIO_Type.tp_base = &PyBufferedIOBase_Type;
-    ADD_TYPE(&PyBytesIO_Type, "BytesIO");
+    ADD_TYPE(&PyBytesIO_Type);
     if (PyType_Ready(&_PyBytesIOBuffer_Type) < 0)
         goto fail;
 
     /* StringIO */
     PyStringIO_Type.tp_base = &PyTextIOBase_Type;
-    ADD_TYPE(&PyStringIO_Type, "StringIO");
+    ADD_TYPE(&PyStringIO_Type);
 
 #ifdef MS_WINDOWS
     /* WindowsConsoleIO */
     PyWindowsConsoleIO_Type.tp_base = &PyRawIOBase_Type;
-    ADD_TYPE(&PyWindowsConsoleIO_Type, "_WindowsConsoleIO");
+    ADD_TYPE(&PyWindowsConsoleIO_Type);
 #endif
 
     /* BufferedReader */
     PyBufferedReader_Type.tp_base = &PyBufferedIOBase_Type;
-    ADD_TYPE(&PyBufferedReader_Type, "BufferedReader");
+    ADD_TYPE(&PyBufferedReader_Type);
 
     /* BufferedWriter */
     PyBufferedWriter_Type.tp_base = &PyBufferedIOBase_Type;
-    ADD_TYPE(&PyBufferedWriter_Type, "BufferedWriter");
+    ADD_TYPE(&PyBufferedWriter_Type);
 
     /* BufferedRWPair */
     PyBufferedRWPair_Type.tp_base = &PyBufferedIOBase_Type;
-    ADD_TYPE(&PyBufferedRWPair_Type, "BufferedRWPair");
+    ADD_TYPE(&PyBufferedRWPair_Type);
 
     /* BufferedRandom */
     PyBufferedRandom_Type.tp_base = &PyBufferedIOBase_Type;
-    ADD_TYPE(&PyBufferedRandom_Type, "BufferedRandom");
+    ADD_TYPE(&PyBufferedRandom_Type);
 
     /* TextIOWrapper */
     PyTextIOWrapper_Type.tp_base = &PyTextIOBase_Type;
-    ADD_TYPE(&PyTextIOWrapper_Type, "TextIOWrapper");
+    ADD_TYPE(&PyTextIOWrapper_Type);
 
     /* IncrementalNewlineDecoder */
-    ADD_TYPE(&PyIncrementalNewlineDecoder_Type, "IncrementalNewlineDecoder");
+    ADD_TYPE(&PyIncrementalNewlineDecoder_Type);
 
     /* Interned strings */
 #define ADD_INTERNED(name) \
diff --git a/Modules/_operator.c b/Modules/_operator.c
index adee5fd7968..9c54aac0583 100644
--- a/Modules/_operator.c
+++ b/Modules/_operator.c
@@ -1771,19 +1771,17 @@ PyInit__operator(void)
     if (m == NULL)
         return NULL;
 
-    if (PyType_Ready(&itemgetter_type) < 0)
-        return NULL;
-    Py_INCREF(&itemgetter_type);
-    PyModule_AddObject(m, "itemgetter", (PyObject *)&itemgetter_type);
+    PyTypeObject *types[] = {
+        &itemgetter_type,
+        &attrgetter_type,
+        &methodcaller_type
+    };
 
-    if (PyType_Ready(&attrgetter_type) < 0)
-        return NULL;
-    Py_INCREF(&attrgetter_type);
-    PyModule_AddObject(m, "attrgetter", (PyObject *)&attrgetter_type);
+    for (size_t i = 0; i < Py_ARRAY_LENGTH(types); i++) {
+        if (PyModule_AddType(m, types[i]) < 0) {
+            return NULL;
+        }
+    }
 
-    if (PyType_Ready(&methodcaller_type) < 0)
-        return NULL;
-    Py_INCREF(&methodcaller_type);
-    PyModule_AddObject(m, "methodcaller", (PyObject *)&methodcaller_type);
     return m;
 }
diff --git a/Modules/_pickle.c b/Modules/_pickle.c
index 6b903da8150..c3385ad3b9e 100644
--- a/Modules/_pickle.c
+++ b/Modules/_pickle.c
@@ -7993,10 +7993,6 @@ PyInit__pickle(void)
         return m;
     }
 
-    if (PyType_Ready(&Unpickler_Type) < 0)
-        return NULL;
-    if (PyType_Ready(&Pickler_Type) < 0)
-        return NULL;
     if (PyType_Ready(&Pdata_Type) < 0)
         return NULL;
     if (PyType_Ready(&PicklerMemoProxyType) < 0)
@@ -8010,16 +8006,15 @@ PyInit__pickle(void)
         return NULL;
 
     /* Add types */
-    Py_INCREF(&Pickler_Type);
-    if (PyModule_AddObject(m, "Pickler", (PyObject *)&Pickler_Type) < 0)
+    if (PyModule_AddType(m, &Pickler_Type) < 0) {
         return NULL;
-    Py_INCREF(&Unpickler_Type);
-    if (PyModule_AddObject(m, "Unpickler", (PyObject *)&Unpickler_Type) < 0)
+    }
+    if (PyModule_AddType(m, &Unpickler_Type) < 0) {
         return NULL;
-    Py_INCREF(&PyPickleBuffer_Type);
-    if (PyModule_AddObject(m, "PickleBuffer",
-                           (PyObject *)&PyPickleBuffer_Type) < 0)
+    }
+    if (PyModule_AddType(m, &PyPickleBuffer_Type) < 0) {
         return NULL;
+    }
 
     st = _Pickle_GetState(m);
 
diff --git a/Modules/_queuemodule.c b/Modules/_queuemodule.c
index e033da50a5e..5eef06252cd 100644
--- a/Modules/_queuemodule.c
+++ b/Modules/_queuemodule.c
@@ -390,11 +390,9 @@ PyInit__queue(void)
     if (PyModule_AddObject(m, "Empty", EmptyError) < 0)
         return NULL;
 
-    if (PyType_Ready(&PySimpleQueueType) < 0)
-        return NULL;
-    Py_INCREF(&PySimpleQueueType);
-    if (PyModule_AddObject(m, "SimpleQueue", (PyObject *)&PySimpleQueueType) < 0)
+    if (PyModule_AddType(m, &PySimpleQueueType) < 0) {
         return NULL;
+    }
 
     return m;
 }
diff --git a/Modules/cjkcodecs/multibytecodec.c b/Modules/cjkcodecs/multibytecodec.c
index 3bc07b2d8d5..a09c75d4ffa 100644
--- a/Modules/cjkcodecs/multibytecodec.c
+++ b/Modules/cjkcodecs/multibytecodec.c
@@ -2059,14 +2059,12 @@ static struct PyModuleDef _multibytecodecmodule = {
 PyMODINIT_FUNC
 PyInit__multibytecodec(void)
 {
-    int i;
     PyObject *m;
     PyTypeObject *typelist[] = {
         &MultibyteIncrementalEncoder_Type,
         &MultibyteIncrementalDecoder_Type,
         &MultibyteStreamReader_Type,
-        &MultibyteStreamWriter_Type,
-        NULL
+        &MultibyteStreamWriter_Type
     };
 
     if (PyType_Ready(&MultibyteCodec_Type) < 0)
@@ -2076,12 +2074,10 @@ PyInit__multibytecodec(void)
     if (m == NULL)
         return NULL;
 
-    for (i = 0; typelist[i] != NULL; i++) {
-        if (PyType_Ready(typelist[i]) < 0)
+    for (size_t i = 0; i < Py_ARRAY_LENGTH(typelist); i++) {
+        if (PyModule_AddType(m, typelist[i]) < 0) {
             return NULL;
-        Py_INCREF(typelist[i]);
-        PyModule_AddObject(m, typelist[i]->tp_name,
-                           (PyObject *)typelist[i]);
+        }
     }
 
     if (PyErr_Occurred()) {
diff --git a/Modules/overlapped.c b/Modules/overlapped.c
index 52ed0bc284b..e8029e72f90 100644
--- a/Modules/overlapped.c
+++ b/Modules/overlapped.c
@@ -1860,12 +1860,10 @@ PyInit__overlapped(void)
     if (initialize_function_pointers() < 0)
         return NULL;
 
-    if (PyType_Ready(&OverlappedType) < 0)
-        return NULL;
-
     m = PyModule_Create(&overlapped_module);
-    if (PyModule_AddObject(m, "Overlapped", (PyObject *)&OverlappedType) < 0)
+    if (PyModule_AddType(m, &OverlappedType) < 0) {
         return NULL;
+    }
 
     d = PyModule_GetDict(m);