gh-105156: Deprecate the old Py_UNICODE type in C API (#105157)

Deprecate the old Py_UNICODE and PY_UNICODE_TYPE types in the C API:
use wchar_t instead.

Replace Py_UNICODE with wchar_t in multiple C files.

Co-authored-by: Inada Naoki <songofacandy@gmail.com>

3 files changed, 7 insertions, 7 deletions

diff --git a/Modules/_io/fileio.c b/Modules/_io/fileio.c
index 30944fc..005c9ff 100644
--- a/Modules/_io/fileio.c
+++ b/Modules/_io/fileio.c
@@ -231,7 +231,7 @@ _io_FileIO___init___impl(fileio *self, PyObject *nameobj, const char *mode,
 /*[clinic end generated code: output=23413f68e6484bbd input=588aac967e0ba74b]*/
 {
 #ifdef MS_WINDOWS
-    Py_UNICODE *widename = NULL;
+    wchar_t *widename = NULL;
 #else
     const char *name = NULL;
 #endif
diff --git a/Modules/_testcapi/getargs.c b/Modules/_testcapi/getargs.c
index 95ef2d2..a473c41 100644
--- a/Modules/_testcapi/getargs.c
+++ b/Modules/_testcapi/getargs.c
@@ -594,7 +594,7 @@ getargs_y_hash(PyObject *self, PyObject *args)
 static PyObject *
 getargs_u(PyObject *self, PyObject *args)
 {
-    Py_UNICODE *str;
+    wchar_t *str;
     if (!PyArg_ParseTuple(args, "u", &str)) {
         return NULL;
     }
@@ -604,7 +604,7 @@ getargs_u(PyObject *self, PyObject *args)
 static PyObject *
 getargs_u_hash(PyObject *self, PyObject *args)
 {
-    Py_UNICODE *str;
+    wchar_t *str;
     Py_ssize_t size;
     if (!PyArg_ParseTuple(args, "u#", &str, &size)) {
         return NULL;
@@ -615,7 +615,7 @@ getargs_u_hash(PyObject *self, PyObject *args)
 static PyObject *
 getargs_Z(PyObject *self, PyObject *args)
 {
-    Py_UNICODE *str;
+    wchar_t *str;
     if (!PyArg_ParseTuple(args, "Z", &str)) {
         return NULL;
     }
@@ -628,7 +628,7 @@ getargs_Z(PyObject *self, PyObject *args)
 static PyObject *
 getargs_Z_hash(PyObject *self, PyObject *args)
 {
-    Py_UNICODE *str;
+    wchar_t *str;
     Py_ssize_t size;
     if (!PyArg_ParseTuple(args, "Z#", &str, &size)) {
         return NULL;
diff --git a/Modules/arraymodule.c b/Modules/arraymodule.c
index f94bbec..999b848 100644
--- a/Modules/arraymodule.c
+++ b/Modules/arraymodule.c
@@ -1830,10 +1830,10 @@ typecode_to_mformat_code(char typecode)
         return UNSIGNED_INT8;
 
     case 'u':
-        if (sizeof(Py_UNICODE) == 2) {
+        if (sizeof(wchar_t) == 2) {
             return UTF16_LE + is_big_endian;
         }
-        if (sizeof(Py_UNICODE) == 4) {
+        if (sizeof(wchar_t) == 4) {
             return UTF32_LE + is_big_endian;
         }
         return UNKNOWN_FORMAT;