Python3: use six.iteritems() instead of dict.iteritems()

This also adds a check to neutron/hacking/checks.py that should catch this
error in the future.

Blueprint: neutron-python3
Change-Id: Ie7b833ffa173772d39b85ee3ecaddace18e1274f
3 files changed
tree: bedcf23048b1e287edc877cfa42ad6663b72a5c4
  1. neutron/