gh-107909: Test explicit object base in PEP695 generic classes (#10…

…8001)
python · Aug 16, 2023 · b61f599 · b61f599
1 parent a8d440b
commit b61f599
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/Lib/test/test_type_params.py b/Lib/test/test_type_params.py
@@ -148,6 +148,10 @@ def test_disallowed_expressions(self):
  check_syntax_error(self, "def f[T: [(x := 3) for _ in range(2)]](): pass")
  check_syntax_error(self, "type T = [(x := 3) for _ in range(2)]")
 
+ def test_incorrect_mro_explicit_object(self):
+ with self.assertRaisesRegex(TypeError, r"\(MRO\) for bases object, Generic"):
+ class My[X](object): ...
+
 
 class TypeParamsNonlocalTest(unittest.TestCase):
  def test_nonlocal_disallowed_01(self):