py26 tests are broken

[Julia Varlamova]

We get an error while running py26 tests: Mock version seems to be incompatible with py26.

Traceback (most recent call last):
2015-07-14 08:38:25.999 | File ".tox/py26/bin/testr", line 26, in <module>
2015-07-14 08:38:26.000 | sys.exit(run_argv(sys.argv, sys.stdin, sys.stdout, sys.stderr))
2015-07-14 08:38:26.000 | File "/home/jenkins/workspace/gate-python-manilaclient-python26/.tox/py26/lib/python2.6/site-packages/testrepository/commands/__init__.py", line 184, in run_argv
2015-07-14 08:38:26.000 | cmdclass = _find_command(cmd_name)
2015-07-14 08:38:26.001 | File "/home/jenkins/workspace/gate-python-manilaclient-python26/.tox/py26/lib/python2.6/site-packages/testrepository/commands/__init__.py", line 51, in _find_command
2015-07-14 08:38:26.001 | _temp = __import__(modname, globals(), locals(), [classname])
2015-07-14 08:38:26.033 | File "/home/jenkins/workspace/gate-python-manilaclient-python26/.tox/py26/lib/python2.6/site-packages/testrepository/commands/last.py", line 22, in <module>
2015-07-14 08:38:26.035 | from testrepository.testcommand import TestCommand
2015-07-14 08:38:26.035 | File "/home/jenkins/workspace/gate-python-manilaclient-python26/.tox/py26/lib/python2.6/site-packages/testrepository/testcommand.py", line 35, in <module>
2015-07-14 08:38:26.035 | from fixtures import Fixture
2015-07-14 08:38:26.036 | File "/home/jenkins/workspace/gate-python-manilaclient-python26/.tox/py26/lib/python2.6/site-packages/fixtures/__init__.py", line 87, in <module>
2015-07-14 08:38:26.036 | from fixtures._fixtures import (
2015-07-14 08:38:26.036 | File "/home/jenkins/workspace/gate-python-manilaclient-python26/.tox/py26/lib/python2.6/site-packages/fixtures/_fixtures/__init__.py", line 55, in <module>
2015-07-14 08:38:26.036 | from fixtures._fixtures.mockpatch import (
2015-07-14 08:38:26.036 | File "/home/jenkins/workspace/gate-python-manilaclient-python26/.tox/py26/lib/python2.6/site-packages/fixtures/_fixtures/mockpatch.py", line 22, in <module>
2015-07-14 08:38:26.037 | mock = extras.try_imports(['unittest.mock', 'mock'], None)
2015-07-14 08:38:26.037 | File "/home/jenkins/workspace/gate-python-manilaclient-python26/.tox/py26/lib/python2.6/site-packages/extras/__init__.py", line 87, in try_imports
2015-07-14 08:38:26.037 | module = try_import(module_name, error_callback=error_callback)
2015-07-14 08:38:26.037 | File "/home/jenkins/workspace/gate-python-manilaclient-python26/.tox/py26/lib/python2.6/site-packages/extras/__init__.py", line 46, in try_import
2015-07-14 08:38:26.038 | module = __import__(module_name)
2015-07-14 08:38:26.038 | File "/home/jenkins/workspace/gate-python-manilaclient-python26/.tox/py26/lib/python2.6/site-packages/mock/__init__.py", line 2, in <module>
2015-07-14 08:38:26.038 | import mock.mock as _mock
2015-07-14 08:38:26.038 | File "/home/jenkins/workspace/gate-python-manilaclient-python26/.tox/py26/lib/python2.6/site-packages/mock/mock.py", line 132
2015-07-14 08:38:26.039 | _builtins = {name for name in dir(builtins) if not name.startswith('_')}
2015-07-14 08:38:26.040 | ^
2015-07-14 08:38:26.040 | SyntaxError: invalid syntax

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/201463

[OpenStack Infra (hudson-openstack)]

Change abandoned by Julia Varlamova (<email address hidden>) on branch: master
Review: https://review.openstack.org/201463

[Julia Varlamova (jvarlamova)]

Fix is already on review in manilaclient: https://review.openstack.org/#/c/200906/

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/201481
Committed: https://git.openstack.org/cgit/openstack/python-manilaclient/commit/?id=2a4f79cc0d3e38a3077980da404695a62319520e
Submitter: Jenkins
Branch: master

commit 2a4f79cc0d3e38a3077980da404695a62319520e
Author: Julia Varlamova <email address hidden>
Date: Tue Jul 14 06:02:15 2015 -0400

    Fix post_test_hook and update test-requirements

    Our gate jobs are broken in two places:

        - latest mock lib does not work on py26;
        - post_test_hook.sh is not compatible with devstack anymore after change to devstack [1]

    So, fix post_test_hook.sh and set proper version to mock lib.

    [1]: I613f1bdc6673f0c4bfe29aaab7b514348a617a8c

    Closes-Bug: #1474293
    Closes-Bug: #1474261
    Closes-Bug: #1474744

    Change-Id: Ia849a06275e738078dc4543680d499c6149117d5