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[xugangsh <xugangsh@xxxxxxxxxx>]

Public bug reported:

Test keystone installation on stable/juno recently, but failed to import
module oslo_i18n

+ keystone-manage db_sync
Traceback (most recent call last):
  File "/usr/bin/keystone-manage", line 30, in <module>
    from keystone import cli
  File "/usr/lib/python2.7/site-packages/keystone/cli.py", line 22, in <module>
    from keystone import assignment
  File "/usr/lib/python2.7/site-packages/keystone/assignment/__init__.py", line 15, in <module>
    from keystone.assignment import controllers  # noqa
  File "/usr/lib/python2.7/site-packages/keystone/assignment/controllers.py", line 26, in <module>
    from keystone.common import controller
  File "/usr/lib/python2.7/site-packages/keystone/common/controller.py", line 21, in <module>
    from keystone.common import utils
  File "/usr/lib/python2.7/site-packages/keystone/common/utils.py", line 26, in <module>
    from oslo.utils import strutils
  File "/usr/lib/python2.7/site-packages/oslo/utils/strutils.py", line 13, in <module>
    from oslo_utils.strutils import *  # noqa
  File "/usr/lib/python2.7/site-packages/oslo_utils/strutils.py", line 26, in <module>
    from oslo_utils._i18n import _
  File "/usr/lib/python2.7/site-packages/oslo_utils/_i18n.py", line 21, in <module>
    import oslo_i18n
ImportError: No module named oslo_i18n

I checked global requirements for stable/juno
http://git.openstack.org/cgit/openstack/requirements/tree/global-requirements.txt?h=stable/juno

I found oslo.utils is below
oslo.utils>=1.4.0,<1.5.0 # Apache-2.0

But oslo.i18n still below
oslo.i18n>=1.0.0,<=1.3.1 # Apache-2.0

And from requirements of oslo.utils 1.4.0
http://git.openstack.org/cgit/openstack/oslo.utils/tree/requirements.txt?id=1.4.0

If we install oslo.utils version 1.4.0, it will require oslo.i18n >= 1.3.0
oslo.i18n>=1.3.0  # Apache-2.0

So if we only install oslo.i18n 1.0.0, it will output can not find
module oslo_i18n

** Affects: keystone
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1492951

Title:
  Juno keystone installation fail to import oslo_i18n

Status in Keystone:
  New

Bug description:
  Test keystone installation on stable/juno recently, but failed to
  import module oslo_i18n

  + keystone-manage db_sync
  Traceback (most recent call last):
    File "/usr/bin/keystone-manage", line 30, in <module>
      from keystone import cli
    File "/usr/lib/python2.7/site-packages/keystone/cli.py", line 22, in <module>
      from keystone import assignment
    File "/usr/lib/python2.7/site-packages/keystone/assignment/__init__.py", line 15, in <module>
      from keystone.assignment import controllers  # noqa
    File "/usr/lib/python2.7/site-packages/keystone/assignment/controllers.py", line 26, in <module>
      from keystone.common import controller
    File "/usr/lib/python2.7/site-packages/keystone/common/controller.py", line 21, in <module>
      from keystone.common import utils
    File "/usr/lib/python2.7/site-packages/keystone/common/utils.py", line 26, in <module>
      from oslo.utils import strutils
    File "/usr/lib/python2.7/site-packages/oslo/utils/strutils.py", line 13, in <module>
      from oslo_utils.strutils import *  # noqa
    File "/usr/lib/python2.7/site-packages/oslo_utils/strutils.py", line 26, in <module>
      from oslo_utils._i18n import _
    File "/usr/lib/python2.7/site-packages/oslo_utils/_i18n.py", line 21, in <module>
      import oslo_i18n
  ImportError: No module named oslo_i18n

  I checked global requirements for stable/juno
  http://git.openstack.org/cgit/openstack/requirements/tree/global-requirements.txt?h=stable/juno

  I found oslo.utils is below
  oslo.utils>=1.4.0,<1.5.0 # Apache-2.0

  But oslo.i18n still below
  oslo.i18n>=1.0.0,<=1.3.1 # Apache-2.0

  And from requirements of oslo.utils 1.4.0
  http://git.openstack.org/cgit/openstack/oslo.utils/tree/requirements.txt?id=1.4.0

  If we install oslo.utils version 1.4.0, it will require oslo.i18n >= 1.3.0
  oslo.i18n>=1.3.0  # Apache-2.0

  So if we only install oslo.i18n 1.0.0, it will output can not find
  module oslo_i18n

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