解决python升级导致yum无法使用

 

CentOS 5.3系统默认Python版本是2.4.3

 

[root@TC-Boss ~]# python -V
Python 2.4.3

 

   由于应用需要升级到Python 2.5.4,由于yum包管理是用python写的,仅仅单独升级python会导致yum无法使用.

出现这种情况的主要原因在于新安装的Python没有YUM服务所依赖的Packages.

 

[root@TC-Boss ~]# 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:
2.5.4 (r254:67916, Feb 24 2010, 10:03:49)
[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:
 

 

解决方法:

查找yum文件,并编辑此py文件

[root@TC-Boss ~]# which yum
/usr/bin/yum

[root@TC-Boss ~]# vi /usr/bin/yum

 

将

#!/usr/bin/python

改为:

#!/usr/bin/python2.4

 

然后保存OK.