Issue #1717: Remove cmp.  Stage 1: remove all uses of cmp and __cmp__ from
the standard library and tests.
diff --git a/Lib/test/test_userdict.py b/Lib/test/test_userdict.py
index 30eec71..5d4a0ff 100644
--- a/Lib/test/test_userdict.py
+++ b/Lib/test/test_userdict.py
@@ -47,7 +47,7 @@
         self.assertEqual(repr(u1), repr(d1))
         self.assertEqual(repr(u2), repr(d2))
 
-        # Test __cmp__ and __len__
+        # Test rich comparison and __len__
         all = [d0, d1, d2, u, u0, u1, u2, uu, uu0, uu1, uu2]
         for a in all:
             for b in all: