missing dependency - babel

Fix proposed to branch: master
Review: https://review.openstack.org/41378

Babel is already required:

  $ ack Babel
  test-requirements.txt
  44:Babel

Are you suggesting it be moved to requirements.txt?

Yes, it needs to be in requirements because of keystone.openstack.common.gettextutils:

Traceback (most recent call last):
  File "/opt/stack/venvs/keystone/bin/keystone-manage", line 16, in <module>
    from keystone import cli
  File "/opt/stack/venvs/keystone/local/lib/python2.7/site-packages/keystone/cli.py", line 28, in <module>
    from keystone.common import openssl
  File "/opt/stack/venvs/keystone/local/lib/python2.7/site-packages/keystone/common/openssl.py", line 23, in <module>
    from keystone import config
  File "/opt/stack/venvs/keystone/local/lib/python2.7/site-packages/keystone/config.py", line 21, in <module>
    from keystone import exception
  File "/opt/stack/venvs/keystone/local/lib/python2.7/site-packages/keystone/exception.py", line 19, in <module>
    from keystone.openstack.common.gettextutils import _ # noqa
  File "/opt/stack/venvs/keystone/local/lib/python2.7/site-packages/keystone/openstack/common/gettextutils.py", line 34, in <module>
    from babel import localedata
ImportError: No module named babel

BTW this should be at least Medium importance if not High. It is a regression introduced by this change:

commit 2c2ebe88a18f3096035812e96ffcf4b23a0395be
Author: Lance Bragstad <email address hidden>
Date: Fri Aug 2 14:26:30 2013 +0000

    Sync unified logging solution from Oslo

    This commit introduces a unified logging strategy from oslo-incubator in
    an attempt to standardize logging in Keystone similar to other OpenStack
    projects (Nova, Quantum, etc.). This commit only introduces
    oslo-incubator/openstack/common/log.py and it's dependencies.
    Implementation of this logging solution will be purposed later.

    blueprint unified-logging-in-keystone

    Change-Id: I860c0f0e935fcd7b4c4886ffd54bf22f2cf4cbb3

The reason it isn't detected is that the gate runs devstack and so other components of openstack end up bringing in babel.

Reviewed: https://review.openstack.org/41378
Committed: http://github.com/openstack/keystone/commit/62b4e1f40886913a5e87cc37ca3b165d87913a52
Submitter: Jenkins
Branch: master

commit 62b4e1f40886913a5e87cc37ca3b165d87913a52
Author: Jan Provaznik <email address hidden>
Date: Mon Aug 12 13:07:42 2013 +0200

    Move Babel dependency from test-req to req

    Recent changes added an undeclared dependency on babel in
    keystone.openstack.common.gettextutils.

    Change-Id: I045195e056c555a293371b50cfc3d7ec0c110ba7
    Fixes: bug #1211270