bpo-42519: Replace PyObject_MALLOC() with PyObject_Malloc() (GH-23587)

No longer use deprecated aliases to functions:

* Replace PyObject_MALLOC() with PyObject_Malloc()
* Replace PyObject_REALLOC() with PyObject_Realloc()
* Replace PyObject_FREE() with PyObject_Free()
* Replace PyObject_Del() with PyObject_Free()
* Replace PyObject_DEL() with PyObject_Free()

Author: vstinner

Include/objimpl.h

@@ -38,7 +38,7 @@ Functions and macros for modules that implement new object types.
    object with room for n items.  In addition to the refcount and type pointer
    fields, this also fills in the ob_size field.
 
- - PyObject_Del(op) releases the memory allocated for an object.  It does not
+ - PyObject_Free(op) releases the memory allocated for an object.  It does not
    run a destructor -- it only frees the memory.  PyObject_Free is identical.
 
  - PyObject_Init(op, typeobj) and PyObject_InitVar(op, typeobj, n) don't
@@ -103,6 +103,8 @@ PyAPI_FUNC(void) PyObject_Free(void *ptr);
 
 
 // Deprecated aliases only kept for backward compatibility.
+// PyObject_Del and PyObject_DEL are defined with no parameter to be able to
+// use them as function pointers (ex: tp_free = PyObject_Del).
 #define PyObject_MALLOC         PyObject_Malloc
 #define PyObject_REALLOC        PyObject_Realloc
 #define PyObject_FREE           PyObject_Free

Include/pymem.h

@@ -79,13 +79,15 @@ PyAPI_FUNC(void) PyMem_Free(void *ptr);
 
 
 // Deprecated aliases only kept for backward compatibility.
+// PyMem_Del and PyMem_DEL are defined with no parameter to be able to use
+// them as function pointers (ex: dealloc = PyMem_Del).
 #define PyMem_MALLOC(n)           PyMem_Malloc(n)
 #define PyMem_NEW(type, n)        PyMem_New(type, n)
 #define PyMem_REALLOC(p, n)       PyMem_Realloc(p, n)
 #define PyMem_RESIZE(p, type, n)  PyMem_Resize(p, type, n)
 #define PyMem_FREE(p)             PyMem_Free(p)
-#define PyMem_Del(p)              PyMem_Free(p)
-#define PyMem_DEL(p)              PyMem_Free(p)
+#define PyMem_Del                 PyMem_Free
+#define PyMem_DEL                 PyMem_Free
 
 
 #ifndef Py_LIMITED_API

Modules/_blake2/blake2b_impl.c

@@ -393,7 +393,7 @@ py_blake2b_dealloc(PyObject *self)
     }
 
     PyTypeObject *type = Py_TYPE(self);
-    PyObject_Del(self);
+    PyObject_Free(self);
     Py_DECREF(type);
 }
 

Modules/_blake2/blake2s_impl.c

@@ -392,7 +392,7 @@ py_blake2s_dealloc(PyObject *self)
     }
 
     PyTypeObject *type = Py_TYPE(self);
-    PyObject_Del(self);
+    PyObject_Free(self);
     Py_DECREF(type);
 }
 

Modules/_ctypes/callproc.c

@@ -475,7 +475,7 @@ static void
 PyCArg_dealloc(PyCArgObject *self)
 {
     Py_XDECREF(self->obj);
-    PyObject_Del(self);
+    PyObject_Free(self);
 }
 
 static int

Modules/_curses_panel.c

@@ -282,7 +282,7 @@ PyCursesPanel_Dealloc(PyCursesPanelObject *po)
         Py_DECREF(po->wo);
         remove_lop(po);
     }
-    PyObject_DEL(po);
+    PyObject_Free(po);
     Py_DECREF(tp);
 }
 

Modules/_cursesmodule.c

@@ -689,7 +689,7 @@ PyCursesWindow_Dealloc(PyCursesWindowObject *wo)
     if (wo->win != stdscr) delwin(wo->win);
     if (wo->encoding != NULL)
         PyMem_Free(wo->encoding);
-    PyObject_DEL(wo);
+    PyObject_Free(wo);
 }
 
 /* Addch, Addstr, Addnstr */

Modules/_decimal/_decimal.c

@@ -1765,7 +1765,7 @@ ctxmanager_dealloc(PyDecContextManagerObject *self)
 {
     Py_XDECREF(self->local);
     Py_XDECREF(self->global);
-    PyObject_Del(self);
+    PyObject_Free(self);
 }
 
 static PyObject *

Modules/_functoolsmodule.c

@@ -478,7 +478,7 @@ keyobject_dealloc(keyobject *ko)
 {
     Py_DECREF(ko->cmp);
     Py_XDECREF(ko->object);
-    PyObject_FREE(ko);
+    PyObject_Free(ko);
 }
 
 static int
@@ -742,7 +742,7 @@ lru_list_elem_dealloc(lru_list_elem *link)
 {
     Py_XDECREF(link->key);
     Py_XDECREF(link->result);
-    PyObject_Del(link);
+    PyObject_Free(link);
 }
 
 static PyTypeObject lru_list_elem_type = {

Modules/_hashopenssl.c

@@ -341,7 +341,7 @@ EVP_dealloc(EVPobject *self)
     if (self->lock != NULL)
         PyThread_free_lock(self->lock);
     EVP_MD_CTX_free(self->ctx);
-    PyObject_Del(self);
+    PyObject_Free(self);
     Py_DECREF(tp);
 }
 
@@ -1453,7 +1453,7 @@ _hashlib_hmac_new_impl(PyObject *module, Py_buffer *key, PyObject *msg_obj,
 
 error:
     if (ctx) HMAC_CTX_free(ctx);
-    if (self) PyObject_Del(self);
+    if (self) PyObject_Free(self);
     return NULL;
 }
 
@@ -1546,7 +1546,7 @@ _hmac_dealloc(HMACobject *self)
         PyThread_free_lock(self->lock);
     }
     HMAC_CTX_free(self->ctx);
-    PyObject_Del(self);
+    PyObject_Free(self);
     Py_DECREF(tp);
 }