py26 failure in congressclient utils

[Steve Martinelli]

When running this as part of openstackclients py26 gate, we noticed that congressclient failed with a syntax error, see below stacktrace for details.

2015-10-16 06:23:26.116 | Failed to import test module: openstackclient.tests.test_shell
2015-10-16 06:23:26.117 | Traceback (most recent call last):
2015-10-16 06:23:26.117 | File "/home/jenkins/workspace/gate-python-openstackclient-python26/.tox/py26/lib/python2.6/site-packages/unittest2/loader.py", line 456, in _find_test_path
2015-10-16 06:23:26.117 | module = self._get_module_from_name(name)
2015-10-16 06:23:26.117 | File "/home/jenkins/workspace/gate-python-openstackclient-python26/.tox/py26/lib/python2.6/site-packages/unittest2/loader.py", line 395, in _get_module_from_name
2015-10-16 06:23:26.117 | __import__(name)
2015-10-16 06:23:26.117 | File "openstackclient/tests/test_shell.py", line 21, in <module>
2015-10-16 06:23:26.117 | from openstackclient import shell
2015-10-16 06:23:26.117 | File "openstackclient/shell.py", line 31, in <module>
2015-10-16 06:23:26.117 | from openstackclient.common import clientmanager
2015-10-16 06:23:26.117 | File "openstackclient/common/clientmanager.py", line 258, in <module>
2015-10-16 06:23:26.117 | 'openstack.cli.extension',
2015-10-16 06:23:26.117 | File "openstackclient/common/clientmanager.py", line 225, in get_plugin_modules
2015-10-16 06:23:26.118 | __import__(ep.module_name)
2015-10-16 06:23:26.118 | File "/home/jenkins/workspace/gate-python-openstackclient-python26/.tox/py26/lib/python2.6/site-packages/congressclient/osc/osc_plugin.py", line 17, in <module>
2015-10-16 06:23:26.118 | from congressclient.common import utils
2015-10-16 06:23:26.118 | File "/home/jenkins/workspace/gate-python-openstackclient-python26/.tox/py26/lib/python2.6/site-packages/congressclient/common/utils.py", line 69
2015-10-16 06:23:26.118 | newdata = [str({str(key): str(value) for key, value in d.iteritems()})

[OpenStack Infra (hudson-openstack)]

Change abandoned by Steve Martinelli (<email address hidden>) on branch: master
Review: https://review.openstack.org/236031
Reason: apparently we are removing py26 in a month