- 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_weakref.py b/Lib/test/test_weakref.py
index 76169f7..1213b57 100644
--- a/Lib/test/test_weakref.py
+++ b/Lib/test/test_weakref.py
@@ -839,7 +839,7 @@
     def check_iters(self, dict):
         # item iterator:
         items = dict.items()
-        for item in dict.iteritems():
+        for item in dict.items():
             items.remove(item)
         self.assert_(len(items) == 0, "iteritems() did not touch all items")
 
@@ -851,13 +851,13 @@
 
         # key iterator, via iterkeys():
         keys = dict.keys()
-        for k in dict.iterkeys():
+        for k in dict.keys():
             keys.remove(k)
         self.assert_(len(keys) == 0, "iterkeys() did not touch all keys")
 
         # value iterator:
         values = dict.values()
-        for v in dict.itervalues():
+        for v in dict.values():
             values.remove(v)
         self.assert_(len(values) == 0,
                      "itervalues() did not touch all values")
@@ -1093,7 +1093,7 @@
 ...     def __init__(self, ob, callback=None, **annotations):
 ...         super(ExtendedRef, self).__init__(ob, callback)
 ...         self.__counter = 0
-...         for k, v in annotations.iteritems():
+...         for k, v in annotations.items():
 ...             setattr(self, k, v)
 ...     def __call__(self):
 ...         '''Return a pair containing the referent and the number of
@@ -1104,7 +1104,7 @@
 ...             self.__counter += 1
 ...             ob = (ob, self.__counter)
 ...         return ob
-...
+... 
 >>> class A:   # not in docs from here, just testing the ExtendedRef
 ...     pass
 ...