- PEP 3106: dict.iterkeys(), .iteritems(), .itervalues() are now gone;
  and .keys(), .items(), .values() return dict views.

The dict views aren't fully functional yet; in particular, they can't
be compared to sets yet.  but they are useful as "iterator wells".

There are still 27 failing unit tests; I expect that many of these
have fairly trivial fixes, but there are so many, I could use help.
diff --git a/Lib/test/test_site.py b/Lib/test/test_site.py
index 6f32fca..11bb674 100644
--- a/Lib/test/test_site.py
+++ b/Lib/test/test_site.py
@@ -204,7 +204,7 @@
         if sys.platform == "win32":
             import locale
             if locale.getdefaultlocale()[1].startswith('cp'):
-                for value in encodings.aliases.aliases.itervalues():
+                for value in encodings.aliases.aliases.values():
                     if value == "mbcs":
                         break
                 else: