From a84ecc649b9680e306f05bfd38c48181c59b416c Mon Sep 17 00:00:00 2001
From: Ezio Melotti <ezio.melotti@gmail.com>
Date: Mon, 4 Mar 2013 15:23:12 +0200
Subject: [PATCH] #17346: make sure pickle tests are run against all protocols.

---
 Lib/test/pickletester.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Lib/test/pickletester.py b/Lib/test/pickletester.py
index f735e955a1d..3e7e11da4d4 100644
--- a/Lib/test/pickletester.py
+++ b/Lib/test/pickletester.py
@@ -503,10 +503,10 @@ class AbstractPickleTests(unittest.TestCase):
         i = C()
         i.attr = i
         for proto in protocols:
-            s = self.dumps(i, 2)
+            s = self.dumps(i, proto)
             x = self.loads(s)
             self.assertEqual(dir(x), dir(i))
-            self.assertTrue(x.attr is x)
+            self.assertIs(x.attr, x)
 
     def test_recursive_multi(self):
         l = []