SF patch #1005778, Fix seg fault if list object is modified during list.index()
Backport candidate
diff --git a/Lib/test/list_tests.py b/Lib/test/list_tests.py
index d20d198..1233ad1 100644
--- a/Lib/test/list_tests.py
+++ b/Lib/test/list_tests.py
@@ -311,6 +311,18 @@
self.assertRaises(ValueError, a.index, 2, 0, 4)
self.assertEqual(a, self.type2test([-2, -1, 0, 1, 2]))
+ # Test modifying the list during index's iteration
+ class EvilCmp:
+ def __init__(self, victim):
+ self.victim = victim
+ def __eq__(self, other):
+ del self.victim[:]
+ return False
+ a = self.type2test()
+ a[:] = [EvilCmp(a) for _ in xrange(100)]
+ # This used to seg fault before patch #1005778
+ self.assertRaises(ValueError, a.index, None)
+
def test_reverse(self):
u = self.type2test([-2, -1, 0, 1, 2])
u2 = u[:]