python · NicolasT · Aug 11, 2026 · Aug 11, 2026
diff --git a/Doc/data/stable_abi.dat b/Doc/data/stable_abi.dat
@@ -872,7 +872,8 @@ C API changes
 New features
 ------------
 
-* TODO
+* Add :c:func:`PyMethod_New` function to the limited C API.
+  (Contributed by Nicolas Trangez in :gh:`155588`.)
 
 Porting to Python 3.16
 ----------------------

diff --git a/Include/Python.h b/Include/Python.h
@@ -104,6 +104,7 @@ __pragma(warning(disable: 4201))
 #include "moduleobject.h"
 #include "cpython/monitoring.h"
 #include "cpython/funcobject.h"
+#include "classobject.h"
 #include "cpython/classobject.h"
 #include "fileobject.h"
 #include "pycapsule.h"

diff --git a/Include/classobject.h b/Include/classobject.h
@@ -0,0 +1,24 @@
+/* Limited C API of PyMethod API
+ */
+
+#ifndef Py_CLASSOBJECT_H
+#define Py_CLASSOBJECT_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03100000
+/* Return a new method object, with `func` being any callable object and
+ * `self` the instance the method should be bound.
+ *
+ * `func` is the function that will be called when the method is called.
+ * `self` must not be NULL.
+ */
+PyAPI_FUNC(PyObject *) PyMethod_New(PyObject *, PyObject *);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* !Py_CLASSOBJECT_H */
diff --git a/Include/cpython/classobject.h b/Include/cpython/classobject.h
@@ -3,8 +3,8 @@
 /* Revealing some structures (not for general use) */
 
 #ifndef Py_LIMITED_API
-#ifndef Py_CLASSOBJECT_H
-#define Py_CLASSOBJECT_H
+#ifndef Py_CPYTHON_CLASSOBJECT_H
+#define Py_CPYTHON_CLASSOBJECT_H
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -67,5 +67,5 @@ static inline PyObject* PyInstanceMethod_GET_FUNCTION(PyObject *meth) {
 #ifdef __cplusplus
 }
 #endif
-#endif   // !Py_CLASSOBJECT_H
+#endif   // !Py_CPYTHON_CLASSOBJECT_H
 #endif   // !Py_LIMITED_API
diff --git a/Lib/test/test_stable_abi_ctypes.py b/Lib/test/test_stable_abi_ctypes.py
diff --git a/Misc/NEWS.d/next/C_API/2026-08-11-21-36-49.gh-issue-155588.y98XoK.rst b/Misc/NEWS.d/next/C_API/2026-08-11-21-36-49.gh-issue-155588.y98XoK.rst
@@ -0,0 +1,2 @@
+Add :c:func:`PyObject_CallFinalizerFromDealloc` function to the limited C
+API. Patch by Nicolas Trangez.
@@ -2832,3 +2832,6 @@
 
 [function.PyObject_CallFinalizerFromDealloc]
     added = '3.15'
+
+[function.PyMethod_New]
+    added = '3.16'
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,2 @@
		Add :c:func:`PyObject_CallFinalizerFromDealloc` function to the limited C
		API. Patch by Nicolas Trangez.