Replacing dict.iteritems()/.itervalues() with six.iteritems(dict)/six.itervalues(dict) was preferred in the past, but there was a discussion suggesting to avoid six for this. ref: http://lists.openstack.org/pipermail/openstack-dev/2015-June/066391.html Change-Id: I63b1e51597307862968f37803ffdbba63306d8c6