pythongh-105107: Remove PyEval_CallFunction() function (python#105108)

Remove 4 functions from the C API, deprecated in Python 3.9: * PyEval_CallObjectWithKeywords() * PyEval_CallObject() * PyEval_CallFunction() * PyEval_CallMethod() Keep 3 functions in the stable ABI: * PyEval_CallObjectWithKeywords() * PyEval_CallFunction() * PyEval_CallMethod()

Author: vstinner

Doc/data/stable_abi.dat

@@ -308,3 +308,18 @@ Deprecated
 Removed
 -------
 
+* Remove functions deprecated in Python 3.9.
+
+ * ``PyEval_CallObject()``, ``PyEval_CallObjectWithKeywords()``: use
+ :c:func:`PyObject_CallNoArgs` or :c:func:`PyObject_Call` instead.
+ Warning: :c:func:`PyObject_Call` positional arguments must be a
+ :class:`tuple` and must not be *NULL*, keyword arguments must be a
+ :class:`dict` or *NULL*, whereas removed functions checked arguments type
+ and accepted *NULL* positional and keyword arguments.
+ To replace ``PyEval_CallObjectWithKeywords(func, NULL, kwargs)`` with
+ :c:func:`PyObject_Call`, pass an empty tuple as positional arguments using
+ :c:func:`PyTuple_New(0) <PyTuple_New>`.
+ * ``PyEval_CallFunction()``: use :c:func:`PyObject_CallFunction` instead.
+ * ``PyEval_CallMethod()``: use :c:func:`PyObject_CallMethod` instead.
+
+ (Contributed by Victor Stinner in :gh:`105107`.)

Doc/whatsnew/3.13.rst

@@ -17,27 +17,6 @@ PyAPI_FUNC(PyObject *) PyEval_EvalCodeEx(PyObject *co,
  PyObject *const *defs, int defc,
  PyObject *kwdefs, PyObject *closure);
 
-/* PyEval_CallObjectWithKeywords(), PyEval_CallObject(), PyEval_CallFunction
- * and PyEval_CallMethod are deprecated. Since they are officially part of the
- * stable ABI (PEP 384), they must be kept for backward compatibility.
- * PyObject_Call(), PyObject_CallFunction() and PyObject_CallMethod() are
- * recommended to call a callable object.
- */
-
-Py_DEPRECATED(3.9) PyAPI_FUNC(PyObject *) PyEval_CallObjectWithKeywords(
- PyObject *callable,
- PyObject *args,
- PyObject *kwargs);
-
-/* Deprecated since PyEval_CallObjectWithKeywords is deprecated */
-#define PyEval_CallObject(callable, arg) \
- PyEval_CallObjectWithKeywords((callable), (arg), _PyObject_CAST(_Py_NULL))
-
-Py_DEPRECATED(3.9) PyAPI_FUNC(PyObject *) PyEval_CallFunction(
- PyObject *callable, const char *format, ...);
-Py_DEPRECATED(3.9) PyAPI_FUNC(PyObject *) PyEval_CallMethod(
- PyObject *obj, const char *name, const char *format, ...);
-
 PyAPI_FUNC(PyObject *) PyEval_GetBuiltins(void);
 PyAPI_FUNC(PyObject *) PyEval_GetGlobals(void);
 PyAPI_FUNC(PyObject *) PyEval_GetLocals(void);

Include/ceval.h

@@ -0,0 +1,9 @@
+Remove functions deprecated in Python 3.9.
+
+* ``PyEval_CallObject()``, ``PyEval_CallObjectWithKeywords()``: use
+ :c:func:`PyObject_CallNoArgs` and :c:func:`PyObject_Call` (positional
+ arguments must not be *NULL*) instead.
+* ``PyEval_CallFunction()``: use :c:func:`PyObject_CallFunction` instead.
+* ``PyEval_CallMethod()``: use :c:func:`PyObject_CallMethod` instead.
+
+Patch by Victor Stinner.

Misc/NEWS.d/next/C API/2023-05-30-19-11-09.gh-issue-105107.YQwMnm.rst

@@ -667,10 +667,13 @@
  added = '3.2'
 [function.PyEval_CallFunction]
  added = '3.2'
+ abi_only = true
 [function.PyEval_CallMethod]
  added = '3.2'
+ abi_only = true
 [function.PyEval_CallObjectWithKeywords]
  added = '3.2'
+ abi_only = true
 [function.PyEval_EvalCode]
  added = '3.2'
 [function.PyEval_EvalCodeEx]

Misc/stable_abi.toml

@@ -426,8 +426,9 @@ _PyFunction_Vectorcall(PyObject *func, PyObject* const* stack,
 /* --- More complex call functions -------------------------------- */
 
 /* External interface to call any callable object.
- The args must be a tuple or NULL. The kwargs must be a dict or NULL. */
-PyObject *
+ The args must be a tuple or NULL. The kwargs must be a dict or NULL.
+ Function removed in Python 3.13 API but kept in the stable ABI. */
+PyAPI_FUNC(PyObject*)
 PyEval_CallObjectWithKeywords(PyObject *callable,
  PyObject *args, PyObject *kwargs)
 {
@@ -583,9 +584,8 @@ PyObject_CallFunction(PyObject *callable, const char *format, ...)
 
 
 /* PyEval_CallFunction is exact copy of PyObject_CallFunction.
- * This function is kept for backward compatibility.
- */
-PyObject *
+ Function removed in Python 3.13 API but kept in the stable ABI. */
+PyAPI_FUNC(PyObject*)
 PyEval_CallFunction(PyObject *callable, const char *format, ...)
 {
  va_list va;
@@ -656,9 +656,8 @@ PyObject_CallMethod(PyObject *obj, const char *name, const char *format, ...)
 
 
 /* PyEval_CallMethod is exact copy of PyObject_CallMethod.
- * This function is kept for backward compatibility.
- */
-PyObject *
+ Function removed in Python 3.13 API but kept in the stable ABI. */
+PyAPI_FUNC(PyObject*)
 PyEval_CallMethod(PyObject *obj, const char *name, const char *format, ...)
 {
  PyThreadState *tstate = _PyThreadState_GET();