From 52846d1fe57913a4f4fd097efe70aee951a754f2 Mon Sep 17 00:00:00 2001
From: Victor Stinner <vstinner@python.org>
Date: Sat, 2 May 2026 15:52:09 +0200
Subject: [PATCH] Fix PyCSimpleType_init() for Zf/Zd/Zg formats

---
 Modules/_ctypes/_ctypes.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/Modules/_ctypes/_ctypes.c b/Modules/_ctypes/_ctypes.c
index d13ad0717a5..ebb1de6eacc 100644
--- a/Modules/_ctypes/_ctypes.c
+++ b/Modules/_ctypes/_ctypes.c
@@ -2415,9 +2415,15 @@ PyCSimpleType_init(PyObject *self, PyObject *args, PyObject *kwds)
             ml = c_char_p_methods;
             stginfo->flags |= TYPEFLAG_ISPOINTER;
             break;
-        case 'Z': /* c_wchar_p */
-            ml = c_wchar_p_methods;
-            stginfo->flags |= TYPEFLAG_ISPOINTER;
+        case 'Z':
+            if (proto_str[1] == '\0') {
+                /* "Z": c_wchar_p */
+                ml = c_wchar_p_methods;
+                stginfo->flags |= TYPEFLAG_ISPOINTER;
+            }
+            else {
+                ml = NULL;
+            }
             break;
         case 'P': /* c_void_p */
             ml = c_void_p_methods;