Oops! 2.6's Rational.__ne__ didn't work.
diff --git a/Lib/test/test_rational.py b/Lib/test/test_rational.py
index 5679c5a..8e62081 100644
--- a/Lib/test/test_rational.py
+++ b/Lib/test/test_rational.py
@@ -313,6 +313,8 @@
         self.assertFalse(R(2, 3) <= R(1, 2))
         self.assertTrue(R(1, 2) == R(1, 2))
         self.assertFalse(R(1, 2) == R(1, 3))
+        self.assertFalse(R(1, 2) != R(1, 2))
+        self.assertTrue(R(1, 2) != R(1, 3))
 
     def testMixedLess(self):
         self.assertTrue(2 < R(5, 2))