概述
由于前同事升级Python版本至2.7.9导致原有的系统默认版本python异常，无法使用yum正常的功能。
[root@localhost ~]# yum update
There was a problem importing one of the Python modules
required to run yum. The error leading to this problem was:
cannot import name urandom
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, Apr 11 2011, 15:50:32)
[GCC 4.4.4 20100726 (Red Hat 4.4.4-13)]
If you cannot solve this problem yourself, please go to
the yum faq at:
http://yum.baseurl.org/wiki/Faq处理办法
卸载原有python
[root@localhost ~]# rpm -e python-2.6.6-20.el6.x86_64 --nodeps
[root@localhost ~]# rpm -e python-devel-2.6.6-20.el6.x86_64 --nodeps
[root@localhost ~]# rpm -e python-libs-2.6.6-20.el6.x86_64 --nodeps安装最新python
[root@localhost ~]# rpm -ivh http://s3-cn-bj.ufileos.com/filecloud/Mirrors/Centos/6/Packages/python-devel-2.6.6-66.el6_8.x86_64.rpm --nodeps
[root@localhost ~]# rpm -ivh http://s3-cn-bj.ufileos.com/filecloud/Mirrors/Centos/6/Packages/python-libs-2.6.6-66.el6_8.x86_64.rpm --nodeps
[root@localhost ~]# rpm -ivh http://s3-cn-bj.ufileos.com/filecloud/Mirrors/Centos/6/Packages/python-2.6.6-66.el6_8.x86_64.rpm --nodeps
