openstack keystone

[root@openstack ~]# openstack keystone user-password-update --pass 312 admin
/usr/lib/python2.7/site-packages/requests/__init__.py:91: RequestsDependencyWarning: urllib3 (1.24.2) or chardet (2.2.1) doesn't match a supported version!
  RequestsDependencyWarning)
Traceback (most recent call last):
  File "/usr/bin/openstack", line 6, in <module>
    from openstackclient.shell import main
  File "/usr/lib/python2.7/site-packages/openstackclient/shell.py", line 23, in <module>
    from osc_lib import shell
  File "/usr/lib/python2.7/site-packages/osc_lib/shell.py", line 33, in <module>
    from osc_lib.cli import client_config as cloud_config
  File "/usr/lib/python2.7/site-packages/osc_lib/cli/client_config.py", line 18, in <module>
    from openstack.config import exceptions as sdk_exceptions
  File "/usr/lib/python2.7/site-packages/openstack/__init__.py", line 17, in <module>
    import openstack.connection
  File "/usr/lib/python2.7/site-packages/openstack/connection.py", line 166, in <module>
    from openstack.cloud import openstackcloud as _cloud
  File "/usr/lib/python2.7/site-packages/openstack/cloud/openstackcloud.py", line 35, in <module>
    import dogpile.cache
  File "/usr/lib/python2.7/site-packages/dogpile/cache/__init__.py", line 1, in <module>
    from .region import CacheRegion, register_backend, make_region  # noqa
  File "/usr/lib/python2.7/site-packages/dogpile/cache/region.py", line 15, in <module>
    from decorator import decorate
ImportError: cannot import name decorate

[root@openstack ~]# pip install --upgrade decorate