repalces uses of dict.iter* with non-iter versions

in python3 dict.{keys,items,values} return views, which are similar to
iterators without some of the caveats about modifying the underlying
object. The iter* and view* methods have been removed, instead one warps
dict.x in iter or list to get those types.

1 files changed, 2 insertions, 3 deletions

diff --git a/alot/ui.py b/alot/ui.py
index a8da57d2..44cd1782 100644
--- a/alot/ui.py
+++ b/alot/ui.py
@@ -529,9 +529,8 @@ class UI(object):
         :rtype:  :class:`twisted.defer.Deferred`
         """
         choices = choices or {'y': 'yes', 'n': 'no'}
-        choices_to_return = choices_to_return or {}
-        assert select is None or select in choices.itervalues()
-        assert cancel is None or cancel in choices.itervalues()
+        assert select is None or select in choices.values()
+        assert cancel is None or cancel in choices.values()
         assert msg_position in ['left', 'above']
 
         d = defer.Deferred()  # create return deferred