Python 3.x Compatibility - convert x.iteritems to six.iteritems(x)

[Rabi Mishra]

I noticed that in many places heat x.iteritems() calls should to be changed to six.iteritems(x) for python 3.x compatibility.

Files requiring change:

/heat/heat/api/cloudwatch/watch.py
/heat/heat/api/openstack/v1/util.py
/heat/heat/common/exception.py
/heat/heat/common/wsgi.py
/heat/heat/db/sqlalchemy/filters.py
/heat/heat/db/sqlalchemy/models.py
/heat/heat/engine/dependencies.py
/heat/heat/engine/environment.py
/heat/heat/engine/hot.py
/heat/heat/engine/parameters.py
/heat/heat/engine/properties.py
/heat/heat/engine/resource.py
heat/heat/engine/resources/__init__.py
/heat/heat/engine/scheduler.py
/heat/heat/engine/service.py
/heat/heat/engine/template.py
/heat/heat/engine/update.py
/heat/heat/openstack/common/jsonutils.py

Some contrib and unit-tests should also be changed.
/heat/contrib/docker/resources/docker_container.py
/heat/contrib/rackspace/resources/cloud_loadbalancer.py

[Thomas Herve (therve)]

IMHO, it's way too early to look at those kind of problems. Until all the libraries Heat uses are ported, working on Heat code itself has little benefit, as we can reintroduce iteritems very easily. Maybe you should work on the hacking library so that it reports using iteritems as error.

[Rabi Mishra (rabi)]

Sure, we can keep this on hold, till we have a proper direction on Python 3.x compatibility. I think other than oslo, not other project is compatible yet.

[Angus Salkeld (asalkeld)]

we could start with this now, if anyone is interested. I'll reset the in-progress to get some more interest.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/138782

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/138782
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=b3c6fc778afdac256ae688303b974bbd75599ad9
Submitter: Jenkins
Branch: master

commit b3c6fc778afdac256ae688303b974bbd75599ad9
Author: Peter Razumovsky <email address hidden>
Date: Wed Dec 3 19:43:15 2014 +0300

    Convert x.iteritems() to six.iteritems(x)

    Convert x.iteritems() to six.iteritems(x) for
    python 3.x compatibility.

    Change-Id: I040c1b753012d45e8bf9f3c20c4a39ef143959b9
    Closes-bug: #1282888