Update Python 3 to 3.12.5

https://docs.python.org/release/3.12.5/whatsnew/changelog.html#python-3-12-5-final
de86cdeacd3a8653b9ec36e87975886fafcf6dc2

1 files changed, 42 insertions, 20 deletions

diff --git a/contrib/tools/python3/Modules/_pickle.c b/contrib/tools/python3/Modules/_pickle.c
index 2bf9977f0b..96534a565b 100644
--- a/contrib/tools/python3/Modules/_pickle.c
+++ b/contrib/tools/python3/Modules/_pickle.c
@@ -1876,10 +1876,10 @@ get_dotted_path(PyObject *obj, PyObject *name)
         if (_PyUnicode_EqualToASCIIString(subpath, "<locals>")) {
             if (obj == NULL)
                 PyErr_Format(PyExc_AttributeError,
-                             "Can't pickle local object %R", name);
+                             "Can't get local object %R", name);
             else
                 PyErr_Format(PyExc_AttributeError,
-                             "Can't pickle local attribute %R on %R", name, obj);
+                             "Can't get local attribute %R on %R", name, obj);
             Py_DECREF(dotted_path);
             return NULL;
         }
@@ -2566,7 +2566,7 @@ save_picklebuffer(PickleState *st, PicklerObject *self, PyObject *obj)
 {
     if (self->proto < 5) {
         PyErr_SetString(st->PicklingError,
-                        "PickleBuffer can only pickled with protocol >= 5");
+                        "PickleBuffer can only be pickled with protocol >= 5");
         return -1;
     }
     const Py_buffer* view = PyPickleBuffer_GetBuffer(obj);
@@ -3188,6 +3188,7 @@ batch_dict(PickleState *state, PicklerObject *self, PyObject *iter)
             if (!PyTuple_Check(obj) || PyTuple_Size(obj) != 2) {
                 PyErr_SetString(PyExc_TypeError, "dict items "
                                 "iterator must return 2-tuples");
+                Py_DECREF(obj);
                 return -1;
             }
             i = save(state, self, PyTuple_GET_ITEM(obj, 0), 0);
@@ -3651,7 +3652,6 @@ save_global(PickleState *st, PicklerObject *self, PyObject *obj,
     PyObject *module = NULL;
     PyObject *parent = NULL;
     PyObject *dotted_path = NULL;
-    PyObject *lastname = NULL;
     PyObject *cls;
     int status = 0;
 
@@ -3692,10 +3692,7 @@ save_global(PickleState *st, PicklerObject *self, PyObject *obj,
                      obj, module_name);
         goto error;
     }
-    lastname = Py_NewRef(PyList_GET_ITEM(dotted_path,
-                         PyList_GET_SIZE(dotted_path) - 1));
     cls = get_deep_attribute(module, dotted_path, &parent);
-    Py_CLEAR(dotted_path);
     if (cls == NULL) {
         PyErr_Format(st->PicklingError,
                      "Can't pickle %R: attribute lookup %S on %S failed",
@@ -3783,7 +3780,10 @@ save_global(PickleState *st, PicklerObject *self, PyObject *obj,
     else {
   gen_global:
         if (parent == module) {
-            Py_SETREF(global_name, Py_NewRef(lastname));
+            Py_SETREF(global_name,
+                Py_NewRef(PyList_GET_ITEM(dotted_path,
+                                          PyList_GET_SIZE(dotted_path) - 1)));
+            Py_CLEAR(dotted_path);
         }
         if (self->proto >= 4) {
             const char stack_global_op = STACK_GLOBAL;
@@ -3796,20 +3796,30 @@ save_global(PickleState *st, PicklerObject *self, PyObject *obj,
             if (_Pickler_Write(self, &stack_global_op, 1) < 0)
                 goto error;
         }
-        else if (parent != module) {
-            PyObject *reduce_value = Py_BuildValue("(O(OO))",
-                                        st->getattr, parent, lastname);
-            if (reduce_value == NULL)
-                goto error;
-            status = save_reduce(st, self, reduce_value, NULL);
-            Py_DECREF(reduce_value);
-            if (status < 0)
-                goto error;
-        }
         else {
             /* Generate a normal global opcode if we are using a pickle
                protocol < 4, or if the object is not registered in the
-               extension registry. */
+               extension registry.
+
+               Objects with multi-part __qualname__ are represented as
+               getattr(getattr(..., attrname1), attrname2). */
+            const char mark_op = MARK;
+            const char tupletwo_op = (self->proto < 2) ? TUPLE : TUPLE2;
+            const char reduce_op = REDUCE;
+            Py_ssize_t i;
+            if (dotted_path) {
+                if (PyList_GET_SIZE(dotted_path) > 1) {
+                    Py_SETREF(global_name, Py_NewRef(PyList_GET_ITEM(dotted_path, 0)));
+                }
+                for (i = 1; i < PyList_GET_SIZE(dotted_path); i++) {
+                    if (save(st, self, st->getattr, 0) < 0 ||
+                        (self->proto < 2 && _Pickler_Write(self, &mark_op, 1) < 0))
+                    {
+                        goto error;
+                    }
+                }
+            }
+
             PyObject *encoded;
             PyObject *(*unicode_encoder)(PyObject *);
 
@@ -3871,6 +3881,17 @@ save_global(PickleState *st, PicklerObject *self, PyObject *obj,
             Py_DECREF(encoded);
             if (_Pickler_Write(self, "\n", 1) < 0)
                 goto error;
+
+            if (dotted_path) {
+                for (i = 1; i < PyList_GET_SIZE(dotted_path); i++) {
+                    if (save(st, self, PyList_GET_ITEM(dotted_path, i), 0) < 0 ||
+                        _Pickler_Write(self, &tupletwo_op, 1) < 0 ||
+                        _Pickler_Write(self, &reduce_op, 1) < 0)
+                    {
+                        goto error;
+                    }
+                }
+            }
         }
         /* Memoize the object. */
         if (memo_put(st, self, obj) < 0)
@@ -3886,7 +3907,6 @@ save_global(PickleState *st, PicklerObject *self, PyObject *obj,
     Py_XDECREF(module);
     Py_XDECREF(parent);
     Py_XDECREF(dotted_path);
-    Py_XDECREF(lastname);
 
     return status;
 }
@@ -6623,11 +6643,13 @@ load_additems(PickleState *state, UnpicklerObject *self)
             if (result == NULL) {
                 Pdata_clear(self->stack, i + 1);
                 Py_SET_SIZE(self->stack, mark);
+                Py_DECREF(add_func);
                 return -1;
             }
             Py_DECREF(result);
         }
         Py_SET_SIZE(self->stack, mark);
+        Py_DECREF(add_func);
     }
 
     return 0;