我是centos的新手我试图在centos中升级python版本，现在yum被打破了。如果yum命令运行，则显示以下消息。
There was a problem importing one of the Python modules required to run yum. The error leading to this problem was: No module named rpm Please install a package which provides this module, or verify that the module is installed correctly. It's possible that the above module doesn't match the current version of Python, which is: 2.6.6 (r266:84292, Mar 8 2015, 07:21:16) [GCC 4.4.7 20120313 (Red Hat 4.4.7-11)] If you cannot solve this problem yourself, please go to the yum faq at: http://yum.baseurl.org/wiki/Faq**
我已运行此命令rpm -q rpm-python，然后显示rpm-python-4.8.0-38.el6_6.x86_64