gh-117110: Fix subclasses of typing.Any with custom constructors (#117111)

1 files changed, 20 insertions, 0 deletions

diff --git a/Lib/test/test_typing.py b/Lib/test/test_typing.py
index 54c7b97..927f74e 100644
--- a/Lib/test/test_typing.py
+++ b/Lib/test/test_typing.py
@@ -140,6 +140,26 @@ class AnyTests(BaseTestCase):
         self.assertIsInstance(ms, Something)
         self.assertIsInstance(ms, Mock)
 
+    def test_subclassing_with_custom_constructor(self):
+        class Sub(Any):
+            def __init__(self, *args, **kwargs): pass
+        # The instantiation must not fail.
+        Sub(0, s="")
+
+    def test_multiple_inheritance_with_custom_constructors(self):
+        class Foo:
+            def __init__(self, x):
+                self.x = x
+
+        class Bar(Any, Foo):
+            def __init__(self, x, y):
+                self.y = y
+                super().__init__(x)
+
+        b = Bar(1, 2)
+        self.assertEqual(b.x, 1)
+        self.assertEqual(b.y, 2)
+
     def test_cannot_instantiate(self):
         with self.assertRaises(TypeError):
             Any()