- 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/Modules/cPickle.c b/Modules/cPickle.c
index 98ab500..ad2b91f 100644
--- a/Modules/cPickle.c
+++ b/Modules/cPickle.c
@@ -1752,7 +1752,7 @@
 	int res = -1;
 	char s[3];
 	int len;
-	PyObject *iter;
+	PyObject *items, *iter;
 
 	if (self->fast && !fast_save_enter(self, args))
 		goto finally;
@@ -1784,7 +1784,11 @@
 		goto finally;
 
 	/* Materialize the dict items. */
-	iter = PyObject_CallMethod(args, "iteritems", "()");
+	items = PyObject_CallMethod(args, "items", "()");
+	if (items == NULL)
+		goto finally;
+	iter = PyObject_GetIter(items);
+	Py_DECREF(items);
 	if (iter == NULL)
 		goto finally;
 	res = batch_dict(self, iter);