python · corona10 · Jun 5, 2023 · Apr 27, 2023 · Apr 27, 2023 · Apr 27, 2023
@@ -892,10 +892,10 @@ static PyObject*
 merge_consts_recursive(PyObject *const_cache, PyObject *o)
 {
     assert(PyDict_CheckExact(const_cache));
-    // None and Ellipsis are singleton, and key is the singleton.
+    // None and Ellipsis are immortal object, and key is the singleton.
     // No need to merge object and key.
     if (o == Py_None || o == Py_Ellipsis) {
-        return Py_NewRef(o);
+        return o;
     }
 
     PyObject *key = _PyCode_ConstantKey(o);
@@ -5706,7 +5706,7 @@ compiler_error(struct compiler *c, location loc,
     }
     PyObject *loc_obj = PyErr_ProgramTextObject(c->c_filename, loc.lineno);
     if (loc_obj == NULL) {
-        loc_obj = Py_NewRef(Py_None);
+        loc_obj = Py_None;
     }
     PyObject *args = Py_BuildValue("O(OiiOii)", msg, c->c_filename,
                                    loc.lineno, loc.col_offset + 1, loc_obj,