commit 5afa03a72ee6d27e742dc0ebc06a0630e1b37fe9
author Benjamin Peterson <benjamin@python.org> Fri Jul 15 14:09:26 2011 -0500
committer Benjamin Peterson <benjamin@python.org> Fri Jul 15 14:09:26 2011 -0500
tree 681215dcb1cb49babcf4677d582591bb37b22c7c
parent 1f0ccfa853dcc68d3c2d5b92d22fa0c8e1321b63

catch nasty exception classes with __new__ that doesn't return a exception (closes #11627)

Patch from Andreas Stührk.

Lib/test/test_raise.py

diff --git a/Lib/test/test_raise.py b/Lib/test/test_raise.py
index d120dc1..e02c1af 100644
--- a/Lib/test/test_raise.py
+++ b/Lib/test/test_raise.py
@@ -121,6 +121,15 @@
         else:
             self.fail("No exception raised")
 
+    def test_new_returns_invalid_instance(self):
+        # See issue #11627.
+        class MyException(Exception):
+            def __new__(cls, *args):
+                return object()
+
+        with self.assertRaises(TypeError):
+            raise MyException
+
 
 class TestCause(unittest.TestCase):
     def test_invalid_cause(self):