- 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/cookielib.py b/Lib/cookielib.py
index b27f63c..7fd883f 100644
--- a/Lib/cookielib.py
+++ b/Lib/cookielib.py
@@ -1171,8 +1171,7 @@
 
 
 def vals_sorted_by_key(adict):
-    keys = adict.keys()
-    keys.sort()
+    keys = sorted(adict.keys())
     return map(adict.get, keys)
 
 def deepvalues(mapping):