diff --git a/Include/Python.h b/Include/Python.h
index aa1a2b2c652..051deaec068 100644
--- a/Include/Python.h
+++ b/Include/Python.h
@@ -160,9 +160,9 @@ PyAPI_FUNC(PyObject*) _Py_Mangle(PyObject *p, PyObject *name);
 #define PyDoc_STR(str) ""
 #endif
 
-#define PY_ARRAY_LENGTH(array) (sizeof(array) / sizeof((array)[0]))
+#define Py_ARRAY_LENGTH(array) (sizeof(array) / sizeof((array)[0]))
 
-#define PY_MIN(x, y) (((x) > (y)) ? (y) : (x))
-#define PY_MAX(x, y) (((x) > (y)) ? (x) : (y))
+#define Py_MIN(x, y) (((x) > (y)) ? (y) : (x))
+#define Py_MAX(x, y) (((x) > (y)) ? (x) : (y))
 
 #endif /* !Py_PYTHON_H */
diff --git a/Modules/arraymodule.c b/Modules/arraymodule.c
index 9d49a97e89e..90ca7c6d214 100644
--- a/Modules/arraymodule.c
+++ b/Modules/arraymodule.c
@@ -2810,7 +2810,7 @@ PyMODINIT_FUNC
 PyInit_array(void)
 {
     PyObject *m;
-    char buffer[PY_ARRAY_LENGTH(descriptors)], *p;
+    char buffer[Py_ARRAY_LENGTH(descriptors)], *p;
     PyObject *typecodes;
     Py_ssize_t size = 0;
     struct arraydescr *descr;
diff --git a/Modules/zipimport.c b/Modules/zipimport.c
index 6bf835953df..2293e66a6b9 100644
--- a/Modules/zipimport.c
+++ b/Modules/zipimport.c
@@ -88,7 +88,7 @@ zipimporter_init(ZipImporter *self, PyObject *args, PyObject *kwds)
                         "archive path too long");
         goto error;
     }
-    if (!PyUnicode_AsUCS4(pathobj, buf, PY_ARRAY_LENGTH(buf), 1))
+    if (!PyUnicode_AsUCS4(pathobj, buf, Py_ARRAY_LENGTH(buf), 1))
         goto error;
 
 #ifdef ALTSEP
@@ -473,7 +473,7 @@ zipimporter_get_data(PyObject *obj, PyObject *args)
         PyErr_SetString(ZipImportError, "path too long");
         return NULL;
     }
-    if (!PyUnicode_AsUCS4(pathobj, buf, PY_ARRAY_LENGTH(buf), 1))
+    if (!PyUnicode_AsUCS4(pathobj, buf, Py_ARRAY_LENGTH(buf), 1))
         return NULL;
     path = buf;
 #ifdef ALTSEP
@@ -484,7 +484,7 @@ zipimporter_get_data(PyObject *obj, PyObject *args)
 #endif
     len = PyUnicode_GET_LENGTH(self->archive);
     if ((size_t)len < Py_UCS4_strlen(path)) {
-        if (!PyUnicode_AsUCS4(self->archive, archive, PY_ARRAY_LENGTH(archive), 1))
+        if (!PyUnicode_AsUCS4(self->archive, archive, Py_ARRAY_LENGTH(archive), 1))
             return NULL;
         if (Py_UCS4_strncmp(path, archive, len) == 0 &&
             path[len] == SEP) {
@@ -771,7 +771,7 @@ read_directory(PyObject *archive)
                         "Zip path name is too long");
         return NULL;
     }
-    if (!PyUnicode_AsUCS4(archive, path, PY_ARRAY_LENGTH(path), 1))
+    if (!PyUnicode_AsUCS4(archive, path, Py_ARRAY_LENGTH(path), 1))
         return NULL;
 
     fp = _Py_fopen(archive, "rb");
diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index aff205d0659..72326530c7b 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -1521,7 +1521,7 @@ PyUnicode_FromFormatV(const char *format, va_list vargs)
             case 'c':
             {
                 Py_UCS4 ordinal = va_arg(count, int);
-                maxchar = PY_MAX(maxchar, ordinal);
+                maxchar = Py_MAX(maxchar, ordinal);
                 n++;
                 break;
             }
@@ -1617,7 +1617,7 @@ PyUnicode_FromFormatV(const char *format, va_list vargs)
                 /* since PyUnicode_DecodeUTF8 returns already flexible
                    unicode objects, there is no need to call ready on them */
                 argmaxchar = PyUnicode_MAX_CHAR_VALUE(str);
-                maxchar = PY_MAX(maxchar, argmaxchar);
+                maxchar = Py_MAX(maxchar, argmaxchar);
                 n += PyUnicode_GET_LENGTH(str);
                 /* Remember the str and switch to the next slot */
                 *callresult++ = str;
@@ -1630,7 +1630,7 @@ PyUnicode_FromFormatV(const char *format, va_list vargs)
                 if (PyUnicode_READY(obj) == -1)
                     goto fail;
                 argmaxchar = PyUnicode_MAX_CHAR_VALUE(obj);
-                maxchar = PY_MAX(maxchar, argmaxchar);
+                maxchar = Py_MAX(maxchar, argmaxchar);
                 n += PyUnicode_GET_LENGTH(obj);
                 break;
             }
@@ -1645,7 +1645,7 @@ PyUnicode_FromFormatV(const char *format, va_list vargs)
                     if (PyUnicode_READY(obj) == -1)
                         goto fail;
                     argmaxchar = PyUnicode_MAX_CHAR_VALUE(obj);
-                    maxchar = PY_MAX(maxchar, argmaxchar);
+                    maxchar = Py_MAX(maxchar, argmaxchar);
                     n += PyUnicode_GET_LENGTH(obj);
                     *callresult++ = NULL;
                 }
@@ -1654,7 +1654,7 @@ PyUnicode_FromFormatV(const char *format, va_list vargs)
                     if (!str_obj)
                         goto fail;
                     argmaxchar = PyUnicode_MAX_CHAR_VALUE(str_obj);
-                    maxchar = PY_MAX(maxchar, argmaxchar);
+                    maxchar = Py_MAX(maxchar, argmaxchar);
                     n += PyUnicode_GET_LENGTH(str_obj);
                     *callresult++ = str_obj;
                 }
@@ -1669,7 +1669,7 @@ PyUnicode_FromFormatV(const char *format, va_list vargs)
                 if (!str || PyUnicode_READY(str) == -1)
                     goto fail;
                 argmaxchar = PyUnicode_MAX_CHAR_VALUE(str);
-                maxchar = PY_MAX(maxchar, argmaxchar);
+                maxchar = Py_MAX(maxchar, argmaxchar);
                 n += PyUnicode_GET_LENGTH(str);
                 /* Remember the str and switch to the next slot */
                 *callresult++ = str;
@@ -1684,7 +1684,7 @@ PyUnicode_FromFormatV(const char *format, va_list vargs)
                 if (!repr || PyUnicode_READY(repr) == -1)
                     goto fail;
                 argmaxchar = PyUnicode_MAX_CHAR_VALUE(repr);
-                maxchar = PY_MAX(maxchar, argmaxchar);
+                maxchar = Py_MAX(maxchar, argmaxchar);
                 n += PyUnicode_GET_LENGTH(repr);
                 /* Remember the repr and switch to the next slot */
                 *callresult++ = repr;
@@ -1699,7 +1699,7 @@ PyUnicode_FromFormatV(const char *format, va_list vargs)
                 if (!ascii || PyUnicode_READY(ascii) == -1)
                     goto fail;
                 argmaxchar = PyUnicode_MAX_CHAR_VALUE(ascii);
-                maxchar = PY_MAX(maxchar, argmaxchar);
+                maxchar = Py_MAX(maxchar, argmaxchar);
                 n += PyUnicode_GET_LENGTH(ascii);
                 /* Remember the repr and switch to the next slot */
                 *callresult++ = ascii;
@@ -11051,7 +11051,7 @@ PyUnicode_RPartition(PyObject *str_in, PyObject *sep_in)
 
     kind1 = PyUnicode_KIND(str_in);
     kind2 = PyUnicode_KIND(sep_obj);
-    kind = PY_MAX(kind1, kind2);
+    kind = Py_MAX(kind1, kind2);
     buf1 = PyUnicode_DATA(str_in);
     if (kind1 != kind)
         buf1 = _PyUnicode_AsKind(str_in, kind);
diff --git a/Python/import.c b/Python/import.c
index 4afdb7058c7..9f380617235 100644
--- a/Python/import.c
+++ b/Python/import.c
@@ -1784,7 +1784,7 @@ find_module_path(PyObject *fullname, PyObject *name, PyObject *path,
         return 0;
 
     len = PyUnicode_GET_LENGTH(path_unicode);
-    if (!PyUnicode_AsUCS4(path_unicode, buf, PY_ARRAY_LENGTH(buf), 1)) {
+    if (!PyUnicode_AsUCS4(path_unicode, buf, Py_ARRAY_LENGTH(buf), 1)) {
         Py_DECREF(path_unicode);
         PyErr_Clear();
         return 0;
@@ -1828,7 +1828,7 @@ find_module_path(PyObject *fullname, PyObject *name, PyObject *path,
 #endif
         )
         buf[len++] = SEP;
-    if (!PyUnicode_AsUCS4(name, buf+len, PY_ARRAY_LENGTH(buf)-len, 1)) {
+    if (!PyUnicode_AsUCS4(name, buf+len, Py_ARRAY_LENGTH(buf)-len, 1)) {
         PyErr_Clear();
         return 0;
     }
@@ -2787,7 +2787,7 @@ import_module_level(PyObject *name, PyObject *globals, PyObject *locals,
     if (PyUnicode_READY(parent_name))
         return NULL;
     buflen = PyUnicode_GET_LENGTH(parent_name);
-    if (!PyUnicode_AsUCS4(parent_name, buf, PY_ARRAY_LENGTH(buf), 1)) {
+    if (!PyUnicode_AsUCS4(parent_name, buf, Py_ARRAY_LENGTH(buf), 1)) {
         Py_DECREF(parent_name);
         PyErr_SetString(PyExc_ValueError,
                         "Module name too long");