今天用yum安装软件的时候出现如下错误:

There was a problem importing one of the Python modules

required to run yum. The error leading to this problem was:

  No module named yum

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:

2.7.3 (default, Nov 29 2013, 00:26:29)

[GCC 4.1.2 20080704 (Red Hat 4.1.2-51)]

If you cannot solve this problem yourself, please go to

the yum faq at:

 http://wiki.linux.duke.edu/YumFaq

刚刚安装完系统还能使用来着，这时候为什么没法使用了，看报错，是yum和Python的依赖问题，yum是python的模块，看看其他刚刚安装的系统，python是2.4的，此系统是2.7的，所以采用以下解决方案：

[root@localhost ~]# python

Python 2.7 (r27:82500, Jul 26 2012, 00:43:02)
[GCC 4.1.2 20080704 (Red Hat 4.1.2-52)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
系统python的当前版本  Python 2.7

[root@localhost ~]#whereis python python: /usr/bin/python /usr/bin/python2.4 /usr/lib/python2.4 /usr/include/python2.4 /usr/share/man/man1/python.1.gz

肯定是yum的版本与当前python的版本不一致造成的

所以修改yum的配置

修改文件： vim /usr/bin/yum

修改头#!/usr/bin/python  => #!/usr/bin/python2.4

再次运行，成功！！！