bpo-44655: Include the name of the type in unset __slots__ attribute errors (GH-27199) (GH-27201)
(cherry picked from commit f783428a2313a729ca8b539c5a86ff114b9ff375)
Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
diff --git a/Lib/test/test_descr.py b/Lib/test/test_descr.py
index 3cb923e..c67911b 100644
--- a/Lib/test/test_descr.py
+++ b/Lib/test/test_descr.py
@@ -1303,6 +1303,12 @@ class X(object):
with self.assertRaises(AttributeError):
del X().a
+ # Inherit from object on purpose to check some backwards compatibility paths
+ class X(object):
+ __slots__ = "a"
+ with self.assertRaisesRegex(AttributeError, "'X' object has no attribute 'a'"):
+ X().a
+
def test_slots_special(self):
# Testing __dict__ and __weakref__ in __slots__...
class D(object):