bpo-39573: Clean up modules and headers to use Py_IS_TYPE() function (GH-18521)

33 files changed, 56 insertions, 56 deletions

diff --git a/Include/cpython/frameobject.h b/Include/cpython/frameobject.h
index cf8c00c..4ced967 100644
--- a/Include/cpython/frameobject.h
+++ b/Include/cpython/frameobject.h
@@ -51,7 +51,7 @@ typedef struct _frame {
 
 PyAPI_DATA(PyTypeObject) PyFrame_Type;
 
-#define PyFrame_Check(op) (Py_TYPE(op) == &PyFrame_Type)
+#define PyFrame_Check(op) Py_IS_TYPE(op, &PyFrame_Type)
 
 PyAPI_FUNC(PyFrameObject *) PyFrame_New(PyThreadState *, PyCodeObject *,
                                         PyObject *, PyObject *);
diff --git a/Include/longobject.h b/Include/longobject.h
index 87b4d01..1b28809 100644
--- a/Include/longobject.h
+++ b/Include/longobject.h
@@ -13,7 +13,7 @@ PyAPI_DATA(PyTypeObject) PyLong_Type;
 
 #define PyLong_Check(op) \
         PyType_FastSubclass(Py_TYPE(op), Py_TPFLAGS_LONG_SUBCLASS)
-#define PyLong_CheckExact(op) (Py_TYPE(op) == &PyLong_Type)
+#define PyLong_CheckExact(op) Py_IS_TYPE(op, &PyLong_Type)
 
 PyAPI_FUNC(PyObject *) PyLong_FromLong(long);
 PyAPI_FUNC(PyObject *) PyLong_FromUnsignedLong(unsigned long);
diff --git a/Modules/_abc.c b/Modules/_abc.c
index 7b5d418..e21fe78 100644
--- a/Modules/_abc.c
+++ b/Modules/_abc.c
@@ -82,7 +82,7 @@ _get_impl(PyObject *self)
     if (impl == NULL) {
         return NULL;
     }
-    if (Py_TYPE(impl) != &_abc_data_type) {
+    if (!Py_IS_TYPE(impl, &_abc_data_type)) {
         PyErr_SetString(PyExc_TypeError, "_abc_impl is set to a wrong type");
         Py_DECREF(impl);
         return NULL;
diff --git a/Modules/_asynciomodule.c b/Modules/_asynciomodule.c
index 5aea743..5674330 100644
--- a/Modules/_asynciomodule.c
+++ b/Modules/_asynciomodule.c
@@ -112,8 +112,8 @@ static PyTypeObject TaskType;
 static PyTypeObject PyRunningLoopHolder_Type;
 
 
-#define Future_CheckExact(obj) (Py_TYPE(obj) == &FutureType)
-#define Task_CheckExact(obj) (Py_TYPE(obj) == &TaskType)
+#define Future_CheckExact(obj) Py_IS_TYPE(obj, &FutureType)
+#define Task_CheckExact(obj) Py_IS_TYPE(obj, &TaskType)
 
 #define Future_Check(obj) PyObject_TypeCheck(obj, &FutureType)
 #define Task_Check(obj) PyObject_TypeCheck(obj, &TaskType)
@@ -255,7 +255,7 @@ get_running_loop(PyObject **loop)
         cached_running_holder_tsid = ts->id;
     }
 
-    assert(Py_TYPE(rl) == &PyRunningLoopHolder_Type);
+    assert(Py_IS_TYPE(rl, &PyRunningLoopHolder_Type));
     PyObject *running_loop = ((PyRunningLoopHolder *)rl)->rl_loop;
 
     if (running_loop == Py_None) {
diff --git a/Modules/_csv.c b/Modules/_csv.c
index 4243772..f820f55 100644
--- a/Modules/_csv.c
+++ b/Modules/_csv.c
@@ -106,7 +106,7 @@ typedef struct {
 
 static PyTypeObject Reader_Type;
 
-#define ReaderObject_Check(v)   (Py_TYPE(v) == &Reader_Type)
+#define ReaderObject_Check(v)   Py_IS_TYPE(v, &Reader_Type)
 
 typedef struct {
     PyObject_HEAD
diff --git a/Modules/_ctypes/ctypes.h b/Modules/_ctypes/ctypes.h
index a93d573..1effccf 100644
--- a/Modules/_ctypes/ctypes.h
+++ b/Modules/_ctypes/ctypes.h
@@ -68,7 +68,7 @@ typedef struct {
     ffi_type *atypes[1];
 } CThunkObject;
 extern PyTypeObject PyCThunk_Type;
-#define CThunk_CheckExact(v)        (Py_TYPE(v) == &PyCThunk_Type)
+#define CThunk_CheckExact(v)        Py_IS_TYPE(v, &PyCThunk_Type)
 
 typedef struct {
     /* First part identical to tagCDataObject */
@@ -102,7 +102,7 @@ typedef struct {
 } PyCFuncPtrObject;
 
 extern PyTypeObject PyCStgDict_Type;
-#define PyCStgDict_CheckExact(v)            (Py_TYPE(v) == &PyCStgDict_Type)
+#define PyCStgDict_CheckExact(v)            Py_IS_TYPE(v, &PyCStgDict_Type)
 #define PyCStgDict_Check(v)         PyObject_TypeCheck(v, &PyCStgDict_Type)
 
 extern int PyCStructUnionType_update_stgdict(PyObject *fields, PyObject *type, int isStruct);
@@ -112,12 +112,12 @@ extern int PyObject_stginfo(PyObject *self, Py_ssize_t *psize, Py_ssize_t *palig
 
 
 extern PyTypeObject PyCData_Type;
-#define CDataObject_CheckExact(v)       (Py_TYPE(v) == &PyCData_Type)
+#define CDataObject_CheckExact(v)       Py_IS_TYPE(v, &PyCData_Type)
 #define CDataObject_Check(v)            PyObject_TypeCheck(v, &PyCData_Type)
 #define _CDataObject_HasExternalBuffer(v)  ((v)->b_ptr != (char *)&(v)->b_value)
 
 extern PyTypeObject PyCSimpleType_Type;
-#define PyCSimpleTypeObject_CheckExact(v)       (Py_TYPE(v) == &PyCSimpleType_Type)
+#define PyCSimpleTypeObject_CheckExact(v)       Py_IS_TYPE(v, &PyCSimpleType_Type)
 #define PyCSimpleTypeObject_Check(v)    PyObject_TypeCheck(v, &PyCSimpleType_Type)
 
 extern PyTypeObject PyCField_Type;
@@ -314,7 +314,7 @@ struct tagPyCArgObject {
 };
 
 extern PyTypeObject PyCArg_Type;
-#define PyCArg_CheckExact(v)        (Py_TYPE(v) == &PyCArg_Type)
+#define PyCArg_CheckExact(v)        Py_IS_TYPE(v, &PyCArg_Type)
 extern PyCArgObject *PyCArgObject_new(void);
 
 extern PyObject *
diff --git a/Modules/_ctypes/stgdict.c b/Modules/_ctypes/stgdict.c
index c8001a9..443951a 100644
--- a/Modules/_ctypes/stgdict.c
+++ b/Modules/_ctypes/stgdict.c
@@ -231,7 +231,7 @@ MakeFields(PyObject *type, CFieldObject *descr,
             Py_DECREF(fieldlist);
             return -1;
         }
-        if (Py_TYPE(fdescr) != &PyCField_Type) {
+        if (!Py_IS_TYPE(fdescr, &PyCField_Type)) {
             PyErr_SetString(PyExc_TypeError, "unexpected type");
             Py_DECREF(fdescr);
             Py_DECREF(fieldlist);
@@ -254,7 +254,7 @@ MakeFields(PyObject *type, CFieldObject *descr,
             Py_DECREF(fieldlist);
             return -1;
         }
-        assert(Py_TYPE(new_descr) == &PyCField_Type);
+        assert(Py_IS_TYPE(new_descr, &PyCField_Type));
         new_descr->size = fdescr->size;
         new_descr->offset = fdescr->offset + offset;
         new_descr->index = fdescr->index + index;
@@ -304,7 +304,7 @@ MakeAnonFields(PyObject *type)
             Py_DECREF(anon_names);
             return -1;
         }
-        if (Py_TYPE(descr) != &PyCField_Type) {
+        if (!Py_IS_TYPE(descr, &PyCField_Type)) {
             PyErr_Format(PyExc_AttributeError,
                          "'%U' is specified in _anonymous_ but not in "
                          "_fields_",
diff --git a/Modules/_curses_panel.c b/Modules/_curses_panel.c
index 53849e3..c18af7e 100644
--- a/Modules/_curses_panel.c
+++ b/Modules/_curses_panel.c
@@ -83,7 +83,7 @@ typedef struct {
 } PyCursesPanelObject;
 
 #define PyCursesPanel_Check(v)  \
- (Py_TYPE(v) == _curses_panelstate_global->PyCursesPanel_Type)
+ Py_IS_TYPE(v, _curses_panelstate_global->PyCursesPanel_Type)
 
 /* Some helper functions. The problem is that there's always a window
    associated with a panel. To ensure that Python's GC doesn't pull
diff --git a/Modules/_datetimemodule.c b/Modules/_datetimemodule.c
index bc03c50..4cafd14 100644
--- a/Modules/_datetimemodule.c
+++ b/Modules/_datetimemodule.c
@@ -18,19 +18,19 @@
 #endif
 
 #define PyDate_Check(op) PyObject_TypeCheck(op, &PyDateTime_DateType)
-#define PyDate_CheckExact(op) (Py_TYPE(op) == &PyDateTime_DateType)
+#define PyDate_CheckExact(op) Py_IS_TYPE(op, &PyDateTime_DateType)
 
 #define PyDateTime_Check(op) PyObject_TypeCheck(op, &PyDateTime_DateTimeType)
-#define PyDateTime_CheckExact(op) (Py_TYPE(op) == &PyDateTime_DateTimeType)
+#define PyDateTime_CheckExact(op) Py_IS_TYPE(op, &PyDateTime_DateTimeType)
 
 #define PyTime_Check(op) PyObject_TypeCheck(op, &PyDateTime_TimeType)
-#define PyTime_CheckExact(op) (Py_TYPE(op) == &PyDateTime_TimeType)
+#define PyTime_CheckExact(op) Py_IS_TYPE(op, &PyDateTime_TimeType)
 
 #define PyDelta_Check(op) PyObject_TypeCheck(op, &PyDateTime_DeltaType)
-#define PyDelta_CheckExact(op) (Py_TYPE(op) == &PyDateTime_DeltaType)
+#define PyDelta_CheckExact(op) Py_IS_TYPE(op, &PyDateTime_DeltaType)
 
 #define PyTZInfo_Check(op) PyObject_TypeCheck(op, &PyDateTime_TZInfoType)
-#define PyTZInfo_CheckExact(op) (Py_TYPE(op) == &PyDateTime_TZInfoType)
+#define PyTZInfo_CheckExact(op) Py_IS_TYPE(op, &PyDateTime_TZInfoType)
 
 #define PyTimezone_Check(op) PyObject_TypeCheck(op, &PyDateTime_TimeZoneType)
 
diff --git a/Modules/_dbmmodule.c b/Modules/_dbmmodule.c
index 072e977..80a0503 100644
--- a/Modules/_dbmmodule.c
+++ b/Modules/_dbmmodule.c
@@ -45,7 +45,7 @@ typedef struct {
 
 static PyTypeObject Dbmtype;
 
-#define is_dbmobject(v) (Py_TYPE(v) == &Dbmtype)
+#define is_dbmobject(v) Py_IS_TYPE(v, &Dbmtype)
 #define check_dbmobject_open(v) if ((v)->di_dbm == NULL) \
                { PyErr_SetString(DbmError, "DBM object has already been closed"); \
                  return NULL; }
diff --git a/Modules/_decimal/_decimal.c b/Modules/_decimal/_decimal.c
index 0fbbb73..e2f6ea1 100644
--- a/Modules/_decimal/_decimal.c
+++ b/Modules/_decimal/_decimal.c
@@ -96,9 +96,9 @@ static PyTypeObject PyDec_Type;
 static PyTypeObject *PyDecSignalDict_Type;
 static PyTypeObject PyDecContext_Type;
 static PyTypeObject PyDecContextManager_Type;
-#define PyDec_CheckExact(v) (Py_TYPE(v) == &PyDec_Type)
+#define PyDec_CheckExact(v) Py_IS_TYPE(v, &PyDec_Type)
 #define PyDec_Check(v) PyObject_TypeCheck(v, &PyDec_Type)
-#define PyDecSignalDict_Check(v) (Py_TYPE(v) == PyDecSignalDict_Type)
+#define PyDecSignalDict_Check(v) Py_IS_TYPE(v, PyDecSignalDict_Type)
 #define PyDecContext_Check(v) PyObject_TypeCheck(v, &PyDecContext_Type)
 #define MPD(v) (&((PyDecObject *)v)->dec)
 #define SdFlagAddr(v) (((PyDecSignalDictObject *)v)->flags)
diff --git a/Modules/_elementtree.c b/Modules/_elementtree.c
index a04b295..4498c5f 100644
--- a/Modules/_elementtree.c
+++ b/Modules/_elementtree.c
@@ -209,7 +209,7 @@ typedef struct {
 } ElementObject;
 
 
-#define Element_CheckExact(op) (Py_TYPE(op) == &Element_Type)
+#define Element_CheckExact(op) Py_IS_TYPE(op, &Element_Type)
 #define Element_Check(op) PyObject_TypeCheck(op, &Element_Type)
 
 
diff --git a/Modules/_functoolsmodule.c b/Modules/_functoolsmodule.c
index 88c02d8..ab0839c 100644
--- a/Modules/_functoolsmodule.c
+++ b/Modules/_functoolsmodule.c
@@ -41,7 +41,7 @@ partial_new(PyTypeObject *type, PyObject *args, PyObject *kw)
 
     pargs = pkw = NULL;
     func = PyTuple_GET_ITEM(args, 0);
-    if (Py_TYPE(func) == &partial_type && type == &partial_type) {
+    if (Py_IS_TYPE(func, &partial_type) && type == &partial_type) {
         partialobject *part = (partialobject *)func;
         if (part->dict == NULL) {
             pargs = part->args;
diff --git a/Modules/_gdbmmodule.c b/Modules/_gdbmmodule.c
index a815819..7a9649b 100644
--- a/Modules/_gdbmmodule.c
+++ b/Modules/_gdbmmodule.c
@@ -44,7 +44,7 @@ static PyTypeObject Dbmtype;
 
 #include "clinic/_gdbmmodule.c.h"
 
-#define is_dbmobject(v) (Py_TYPE(v) == &Dbmtype)
+#define is_dbmobject(v) Py_IS_TYPE(v, &Dbmtype)
 #define check_dbmobject_open(v) if ((v)->di_dbm == NULL) \
     { PyErr_SetString(DbmError, "GDBM object has already been closed"); \
       return NULL; }
diff --git a/Modules/_json.c b/Modules/_json.c
index ee2070c..d9346a7 100644
--- a/Modules/_json.c
+++ b/Modules/_json.c
@@ -13,9 +13,9 @@
 #include "pycore_accu.h"
 
 #define PyScanner_Check(op) PyObject_TypeCheck(op, &PyScannerType)
-#define PyScanner_CheckExact(op) (Py_TYPE(op) == &PyScannerType)
+#define PyScanner_CheckExact(op) Py_IS_TYPE(op, &PyScannerType)
 #define PyEncoder_Check(op) PyObject_TypeCheck(op, &PyEncoderType)
-#define PyEncoder_CheckExact(op) (Py_TYPE(op) == &PyEncoderType)
+#define PyEncoder_CheckExact(op) Py_IS_TYPE(op, &PyEncoderType)
 
 static PyTypeObject PyScannerType;
 static PyTypeObject PyEncoderType;
diff --git a/Modules/_lsprof.c b/Modules/_lsprof.c
index c5a6f44..2718c61 100644
--- a/Modules/_lsprof.c
+++ b/Modules/_lsprof.c
@@ -54,7 +54,7 @@ typedef struct {
 static PyTypeObject PyProfiler_Type;
 
 #define PyProfiler_Check(op) PyObject_TypeCheck(op, &PyProfiler_Type)
-#define PyProfiler_CheckExact(op) (Py_TYPE(op) == &PyProfiler_Type)
+#define PyProfiler_CheckExact(op) Py_IS_TYPE(op, &PyProfiler_Type)
 
 /*** External Timers ***/
 
diff --git a/Modules/_sre.c b/Modules/_sre.c
index 80c4184..15950c6 100644
--- a/Modules/_sre.c
+++ b/Modules/_sre.c
@@ -2518,7 +2518,7 @@ pattern_richcompare(PyObject *lefto, PyObject *righto, int op)
         Py_RETURN_NOTIMPLEMENTED;
     }
 
-    if (Py_TYPE(lefto) != &Pattern_Type || Py_TYPE(righto) != &Pattern_Type) {
+    if (!Py_IS_TYPE(lefto, &Pattern_Type) || !Py_IS_TYPE(righto, &Pattern_Type)) {
         Py_RETURN_NOTIMPLEMENTED;
     }
 
diff --git a/Modules/_ssl.c b/Modules/_ssl.c
index a0d34b3..ef04712 100644
--- a/Modules/_ssl.c
+++ b/Modules/_ssl.c
@@ -508,9 +508,9 @@ static int PySSL_select(PySocketSockObject *s, int writing, _PyTime_t timeout);
 
 static int PySSL_set_owner(PySSLSocket *, PyObject *, void *);
 static int PySSL_set_session(PySSLSocket *, PyObject *, void *);
-#define PySSLSocket_Check(v)    (Py_TYPE(v) == &PySSLSocket_Type)
-#define PySSLMemoryBIO_Check(v)    (Py_TYPE(v) == &PySSLMemoryBIO_Type)
-#define PySSLSession_Check(v)   (Py_TYPE(v) == &PySSLSession_Type)
+#define PySSLSocket_Check(v)    Py_IS_TYPE(v, &PySSLSocket_Type)
+#define PySSLMemoryBIO_Check(v)    Py_IS_TYPE(v, &PySSLMemoryBIO_Type)
+#define PySSLSession_Check(v)   Py_IS_TYPE(v, &PySSLSession_Type)
 
 typedef enum {
     SOCKET_IS_NONBLOCKING,
diff --git a/Modules/_struct.c b/Modules/_struct.c
index 0cdfe26..eed3659 100644
--- a/Modules/_struct.c
+++ b/Modules/_struct.c
@@ -57,7 +57,7 @@ typedef struct {
 
 
 #define PyStruct_Check(op) PyObject_TypeCheck(op, (PyTypeObject *)_structmodulestate_global->PyStructType)
-#define PyStruct_CheckExact(op) (Py_TYPE(op) == (PyTypeObject *)_structmodulestate_global->PyStructType)
+#define PyStruct_CheckExact(op) Py_IS_TYPE(op, (PyTypeObject *)_structmodulestate_global->PyStructType)
 
 
 /* Define various structs to figure out the alignments of types */
diff --git a/Modules/_testbuffer.c b/Modules/_testbuffer.c
index 600a52a..f4c2b59 100644
--- a/Modules/_testbuffer.c
+++ b/Modules/_testbuffer.c
@@ -24,7 +24,7 @@ static PyObject *simple_format = NULL;
 /**************************************************************************/
 
 static PyTypeObject NDArray_Type;
-#define NDArray_Check(v) (Py_TYPE(v) == &NDArray_Type)
+#define NDArray_Check(v) Py_IS_TYPE(v, &NDArray_Type)
 
 #define CHECK_LIST_OR_TUPLE(v) \
     if (!PyList_Check(v) && !PyTuple_Check(v)) { \
diff --git a/Modules/_tkinter.c b/Modules/_tkinter.c
index 87bc7ae..5f001c6 100644
--- a/Modules/_tkinter.c
+++ b/Modules/_tkinter.c
@@ -833,7 +833,7 @@ typedef struct {
 } PyTclObject;
 
 static PyObject *PyTclObject_Type;
-#define PyTclObject_Check(v) (Py_TYPE(v) == (PyTypeObject *) PyTclObject_Type)
+#define PyTclObject_Check(v) Py_IS_TYPE(v, (PyTypeObject *) PyTclObject_Type)
 
 static PyObject *
 newPyTclObject(Tcl_Obj *arg)
diff --git a/Modules/arraymodule.c b/Modules/arraymodule.c
index eeda714..b41ba05 100644
--- a/Modules/arraymodule.c
+++ b/Modules/arraymodule.c
@@ -106,7 +106,7 @@ enum machine_format_code {
 #include "clinic/arraymodule.c.h"
 
 #define array_Check(op) PyObject_TypeCheck(op, &Arraytype)
-#define array_CheckExact(op) (Py_TYPE(op) == &Arraytype)
+#define array_CheckExact(op) Py_IS_TYPE(op, &Arraytype)
 
 static int
 array_resize(arrayobject *self, Py_ssize_t newsize)
diff --git a/Modules/parsermodule.c b/Modules/parsermodule.c
index f00329b..24b0ffb 100644
--- a/Modules/parsermodule.c
+++ b/Modules/parsermodule.c
@@ -256,7 +256,7 @@ PyTypeObject PyST_Type = {
 
 
 /* PyST_Type isn't subclassable, so just check ob_type */
-#define PyST_Object_Check(v) (Py_TYPE(v) == &PyST_Type)
+#define PyST_Object_Check(v) Py_IS_TYPE(v, &PyST_Type)
 
 static int
 parser_compare_nodes(node *left, node *right)
diff --git a/Modules/sha256module.c b/Modules/sha256module.c
index 0e0c446..eee582c 100644
--- a/Modules/sha256module.c
+++ b/Modules/sha256module.c
@@ -413,7 +413,7 @@ SHA256Type_copy_impl(SHAobject *self)
 {
     SHAobject *newobj;
 
-    if (Py_TYPE(self) == &SHA256type) {
+    if (Py_IS_TYPE(self, &SHA256type)) {
         if ( (newobj = newSHA256object())==NULL)
             return NULL;
     } else {
diff --git a/Modules/sha512module.c b/Modules/sha512module.c
index 07bf283..b2e0727 100644
--- a/Modules/sha512module.c
+++ b/Modules/sha512module.c
@@ -478,7 +478,7 @@ SHA512Type_copy_impl(SHAobject *self)
 {
     SHAobject *newobj;
 
-    if (Py_TYPE((PyObject*)self) == &SHA512type) {
+    if (Py_IS_TYPE((PyObject*)self, &SHA512type)) {
         if ( (newobj = newSHA512object())==NULL)
             return NULL;
     } else {
diff --git a/Modules/timemodule.c b/Modules/timemodule.c
index 5e0010c..1709720 100644
--- a/Modules/timemodule.c
+++ b/Modules/timemodule.c
@@ -550,7 +550,7 @@ gettmarg(PyObject *args, struct tm *p, const char *format)
     p->tm_wday = (p->tm_wday + 1) % 7;
     p->tm_yday--;
 #ifdef HAVE_STRUCT_TM_TM_ZONE
-    if (Py_TYPE(args) == &StructTimeType) {
+    if (Py_IS_TYPE(args, &StructTimeType)) {
         PyObject *item;
         item = PyStructSequence_GET_ITEM(args, 9);
         if (item != Py_None) {
diff --git a/Modules/unicodedata.c b/Modules/unicodedata.c
index 58b1bc2..ce97bdf 100644
--- a/Modules/unicodedata.c
+++ b/Modules/unicodedata.c
@@ -92,7 +92,7 @@ static PyMemberDef DB_members[] = {
 
 /* forward declaration */
 static PyTypeObject UCD_Type;
-#define UCD_Check(o) (Py_TYPE(o)==&UCD_Type)
+#define UCD_Check(o) Py_IS_TYPE(o, &UCD_Type)
 
 static PyObject*
 new_previous_version(const char*name, const change_record* (*getrecord)(Py_UCS4),
diff --git a/Modules/xxlimited.c b/Modules/xxlimited.c
index ffc04e0..7ce0b6e 100644
--- a/Modules/xxlimited.c
+++ b/Modules/xxlimited.c
@@ -25,7 +25,7 @@ typedef struct {
 
 static PyObject *Xxo_Type;
 
-#define XxoObject_Check(v)      (Py_TYPE(v) == Xxo_Type)
+#define XxoObject_Check(v)      Py_IS_TYPE(v, Xxo_Type)
 
 static XxoObject *
 newXxoObject(PyObject *arg)
diff --git a/Modules/xxmodule.c b/Modules/xxmodule.c
index 0250031..17b049c 100644
--- a/Modules/xxmodule.c
+++ b/Modules/xxmodule.c
@@ -25,7 +25,7 @@ typedef struct {
 
 static PyTypeObject Xxo_Type;
 
-#define XxoObject_Check(v)      (Py_TYPE(v) == &Xxo_Type)
+#define XxoObject_Check(v)      Py_IS_TYPE(v, &Xxo_Type)
 
 static XxoObject *
 newXxoObject(PyObject *arg)
diff --git a/Objects/classobject.c b/Objects/classobject.c
index 33afbcd..97f50fa 100644
--- a/Objects/classobject.c
+++ b/Objects/classobject.c
@@ -37,7 +37,7 @@ static PyObject *
 method_vectorcall(PyObject *method, PyObject *const *args,
                   size_t nargsf, PyObject *kwnames)
 {
-    assert(Py_TYPE(method) == &PyMethod_Type);
+    assert(Py_IS_TYPE(method, &PyMethod_Type));
 
     PyThreadState *tstate = _PyThreadState_GET();
     PyObject *self = PyMethod_GET_SELF(method);
diff --git a/Objects/dictobject.c b/Objects/dictobject.c
index 8f6ce39..86ac4ef 100644
--- a/Objects/dictobject.c
+++ b/Objects/dictobject.c
@@ -608,7 +608,7 @@ new_dict(PyDictKeysObject *keys, PyObject **values)
     if (numfree) {
         mp = free_list[--numfree];
         assert (mp != NULL);
-        assert (Py_TYPE(mp) == &PyDict_Type);
+        assert (Py_IS_TYPE(mp, &PyDict_Type));
         _Py_NewReference((PyObject *)mp);
     }
     else {
@@ -2007,7 +2007,7 @@ dict_dealloc(PyDictObject *mp)
         assert(keys->dk_refcnt == 1);
         dictkeys_decref(keys);
     }
-    if (numfree < PyDict_MAXFREELIST && Py_TYPE(mp) == &PyDict_Type)
+    if (numfree < PyDict_MAXFREELIST && Py_IS_TYPE(mp, &PyDict_Type))
         free_list[numfree++] = mp;
     else
         Py_TYPE(mp)->tp_free((PyObject *)mp);
@@ -3864,15 +3864,15 @@ dictreviter_iternext(dictiterobject *di)
     di->di_pos = i-1;
     di->len--;
 
-    if (Py_TYPE(di) == &PyDictRevIterKey_Type) {
+    if (Py_IS_TYPE(di, &PyDictRevIterKey_Type)) {
         Py_INCREF(key);
         return key;
     }
-    else if (Py_TYPE(di) == &PyDictRevIterValue_Type) {
+    else if (Py_IS_TYPE(di, &PyDictRevIterValue_Type)) {
         Py_INCREF(value);
         return value;
     }
-    else if (Py_TYPE(di) == &PyDictRevIterItem_Type) {
+    else if (Py_IS_TYPE(di, &PyDictRevIterItem_Type)) {
         Py_INCREF(key);
         Py_INCREF(value);
         result = di->di_result;
@@ -4236,7 +4236,7 @@ _PyDictView_Intersect(PyObject* self, PyObject *other)
 
     /* if other is a set and self is smaller than other,
        reuse set intersection logic */
-    if (Py_TYPE(other) == &PySet_Type && len_self <= PyObject_Size(other)) {
+    if (Py_IS_TYPE(other, &PySet_Type) && len_self <= PyObject_Size(other)) {
         _Py_IDENTIFIER(intersection);
         return _PyObject_CallMethodIdObjArgs(other, &PyId_intersection, self, NULL);
     }
diff --git a/Objects/typeobject.c b/Objects/typeobject.c
index f32ccb1..e51059b 100644
--- a/Objects/typeobject.c
+++ b/Objects/typeobject.c
@@ -302,7 +302,7 @@ type_mro_modified(PyTypeObject *type, PyObject *bases) {
        each subclass when their mro is recursively updated.
      */
     Py_ssize_t i, n;
-    int custom = (Py_TYPE(type) != &PyType_Type);
+    int custom = !Py_IS_TYPE(type, &PyType_Type);
     int unbound;
     PyObject *mro_meth = NULL;
     PyObject *type_mro_meth = NULL;
diff --git a/Python/hamt.c b/Python/hamt.c
index a0fee4c..7299810 100644
--- a/Python/hamt.c
+++ b/Python/hamt.c
@@ -274,9 +274,9 @@ to introspect the tree:
 */
 
 
-#define IS_ARRAY_NODE(node)     (Py_TYPE(node) == &_PyHamt_ArrayNode_Type)
-#define IS_BITMAP_NODE(node)    (Py_TYPE(node) == &_PyHamt_BitmapNode_Type)
-#define IS_COLLISION_NODE(node) (Py_TYPE(node) == &_PyHamt_CollisionNode_Type)
+#define IS_ARRAY_NODE(node)     Py_IS_TYPE(node, &_PyHamt_ArrayNode_Type)
+#define IS_BITMAP_NODE(node)    Py_IS_TYPE(node, &_PyHamt_BitmapNode_Type)
+#define IS_COLLISION_NODE(node) Py_IS_TYPE(node, &_PyHamt_CollisionNode_Type)
 
 
 /* Return type for 'find' (lookup a key) functions.