解决Python升级为2.5高版本后yum不能使用的问题

# yum
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:
2.4.3 (#1, Oct 14 2009, 01:52:50)
[GCC 4.1.2 20080704 (Red Hat 4.1.2-44)]

If you cannot solve this problem yourself, please go to
the yum faq at:

http://wiki.linux.duke.edu/YumFaq

=======================

直接修改 vim /usr/bin/yum
将 #!/usr/bin/python 修改为 #!/usr/bin/python2.4

上面是假设你是从2.4升级到 2.5

其实这个时候 你可以 ls /usr/lib/python2.4/site-packages/yum
这个文件夹是否存在的

然后 /usr/bin/python2.4
Python 2.4.3 (#1, May 24 2008, 13:47:28)
[GCC 4.1.2 20070626 (Red Hat 4.1.2-14)] on linux2
Type “help”, “copyright”, “credits” or “license” for more information.
>>> import yum

成功鸟