pythongh-96352: Set AttributeError context in _PyObject_GenericGetAttrWithDict (pythonGH-96353)

(cherry picked from commit b9634ac)

Co-authored-by: philg314 <[email protected]>

Author: miss-islington

Lib/test/test_exceptions.py

@@ -2058,6 +2058,11 @@ class A:
         except AttributeError as exc:
             self.assertEqual("bluch", exc.name)
             self.assertEqual(obj, exc.obj)
+        try:
+            object.__getattribute__(obj, "bluch")
+        except AttributeError as exc:
+            self.assertEqual("bluch", exc.name)
+            self.assertEqual(obj, exc.obj)
 
     def test_getattr_has_name_and_obj_for_method(self):
         class A:

Misc/NEWS.d/next/Core and Builtins/2022-08-28-10-51-19.gh-issue-96352.jTLD2d.rst

@@ -0,0 +1,2 @@
+Fix :exc:`AttributeError` missing ``name`` and ``obj`` attributes in
+:meth:`object.__getattribute__`. Patch by Philip Georgi.

Objects/object.c

@@ -1352,6 +1352,8 @@ _PyObject_GenericGetAttrWithDict(PyObject *obj, PyObject *name,
         PyErr_Format(PyExc_AttributeError,
                      "'%.50s' object has no attribute '%U'",
                      tp->tp_name, name);
+
+        set_attribute_error_context(obj, name);
     }
   done:
     Py_XDECREF(descr);