--- Modules/threadmodule.c.old	2008-07-14 04:20:35.000000000 +0200
+++ Modules/threadmodule.c	2008-07-14 04:20:40.000000000 +0200
@@ -25,12 +25,13 @@
 static void
 lock_dealloc(lockobject *self)
 {
-	assert(self->lock_lock);
-	/* Unlock the lock so it's safe to free it */
-	PyThread_acquire_lock(self->lock_lock, 0);
-	PyThread_release_lock(self->lock_lock);
+	if (self->lock_lock) {
+		/* Unlock the lock so it's safe to free it */
+		PyThread_acquire_lock(self->lock_lock, 0);
+		PyThread_release_lock(self->lock_lock);
 
-	PyThread_free_lock(self->lock_lock);
+		PyThread_free_lock(self->lock_lock);
+	}
 	PyObject_Del(self);
 }
 
@@ -148,7 +149,7 @@
 		return NULL;
 	self->lock_lock = PyThread_allocate_lock();
 	if (self->lock_lock == NULL) {
-		PyObject_Del(self);
+		Py_DECREF(self);
 		self = NULL;
 		PyErr_SetString(ThreadError, "can't allocate lock");
 	}
Index: Modules/pyexpat.c
===================================================================
--- Modules/pyexpat.c	(révision 64942)
+++ Modules/pyexpat.c	(copie de travail)
@@ -1136,13 +1136,7 @@
     if (self->buffer != NULL) {
         new_parser->buffer = malloc(new_parser->buffer_size);
         if (new_parser->buffer == NULL) {
-#ifndef Py_TPFLAGS_HAVE_GC
-            /* Code for versions 2.0 and 2.1 */
-            PyObject_Del(new_parser);
-#else
-            /* Code for versions 2.2 and later. */
-            PyObject_GC_Del(new_parser);
-#endif
+            Py_DECREF(new_parser);
             return PyErr_NoMemory();
         }
     }
Index: Modules/_elementtree.c
===================================================================
--- Modules/_elementtree.c	(révision 64942)
+++ Modules/_elementtree.c	(copie de travail)
@@ -328,7 +328,7 @@
     if (attrib != Py_None) {
 
         if (element_new_extra(self, attrib) < 0) {
-            PyObject_Del(self);
+            Py_DECREF(self);
             return NULL;
 	}
 
@@ -2244,14 +2244,14 @@
 
     self->entity = PyDict_New();
     if (!self->entity) {
-        PyObject_Del(self);
+        Py_DECREF(self);
         return NULL;
     }
      
     self->names = PyDict_New();
     if (!self->names) {
-        PyObject_Del(self->entity);
-        PyObject_Del(self);
+        Py_DECREF(self->entity);
+        Py_DECREF(self);
         return NULL;
     }
 
@@ -2261,9 +2261,9 @@
 
     self->parser = EXPAT(ParserCreate_MM)(encoding, &memory_handler, "}");
     if (!self->parser) {
-        PyObject_Del(self->names);
-        PyObject_Del(self->entity);
-        PyObject_Del(self);
+        Py_DECREF(self->names);
+        Py_DECREF(self->entity);
+        Py_DECREF(self);
         PyErr_NoMemory();
         return NULL;
     }
@@ -2273,9 +2273,9 @@
         target = treebuilder_new();
         if (!target) {
             EXPAT(ParserFree)(self->parser);
-            PyObject_Del(self->names);
-            PyObject_Del(self->entity);
-            PyObject_Del(self);
+            Py_DECREF(self->names);
+            Py_DECREF(self->entity);
+            Py_DECREF(self);
             return NULL;
         }
     } else