keystone安装时这个告警是什么意思

进入到/usr/local/src/keystone目录------------> python setup.py install   有如下告警信息

/usr/lib/python2.6/site-packages/setuptools/command/easy_install.py:1984: DeprecationWarning: Use get_header

  warnings.warn("Use get_header", DeprecationWarning)

[i][/i]

[root@node1 etc]# keystone-manage pki_setup --keystone-user root --keystone-group root

Traceback (most recent call last):

  File "/usr/bin/keystone-manage", line 37, in

    from keystone import cli

  File "/usr/lib/python2.6/site-packages/keystone/cli.py", line 19, in

    from oslo.config import cfg

ImportError: No module named oslo.config