Fix __sizeof__.

serhiy-storchaka · serhiy-storchaka · commit 20aa1bf6b293 · 2025-04-08T17:21:48.000+03:00
diff --git a/Lib/test/test_pickle.py b/Lib/test/test_pickle.py
@@ -477,7 +477,7 @@ def test_pickler(self):
                 0)  # Write buffer is cleared after every dump().
 
         def test_unpickler(self):
-            basesize = support.calcobjsize('2P2n2P 2P2n2i5P 2P3n8P2n2i')
+            basesize = support.calcobjsize('2P2n3P 2P2n2i5P 2P3n8P2n2i')
             unpickler = _pickle.Unpickler
             P = struct.calcsize('P')  # Size of memo table entry.
             n = struct.calcsize('n')  # Size of mark table entry.
diff --git a/Modules/_pickle.c b/Modules/_pickle.c
@@ -7311,13 +7311,6 @@ _pickle_Unpickler___sizeof___impl(UnpicklerObject *self)
     size_t res = _PyObject_SIZE(Py_TYPE(self));
     if (self->memo != NULL)
         res += self->memo_size * sizeof(PyObject *);
-    if (self->memo_dict != NULL) {
-        size_t s = _PySys_GetSizeOf(self->memo_dict);
-        if (s == (size_t)-1) {
-            return -1;
-        }
-        res += s;
-    }
     if (self->marks != NULL)
         res += (size_t)self->marks_size * sizeof(Py_ssize_t);
     if (self->input_line != NULL)
