yum error :No module named yum

 

Yum（全称为 Yellow dog Updater, Modified）是一个在Fedora和RedHat以及SUSE、CentOS中的Shell前端软件包管理器。基於RPM包管理，能够从指定的服务器自动下载RPM包并且安装，可以自动处理依赖性关系，并且一次安装所有依赖的软件包，无须繁琐地一次次下载、安装将linux中python2.4升级到2.7，把/usr/bin/python指向了新安装的python2.7的可执行文件

在输入#yum时以下错误：python2.7中没有yum这个模块

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, May 7 2013, 14:52:20)
[GCC 4.1.2 20080704 (Red Hat 4.1.2-46)]

If you cannot solve this problem yourself, please go to
the yum faq at:
http://wiki.linux.duke.edu/YumFaq

解决办法见：

http://apipi.blog.163.com/blog/static/42266381201312251724160/

改了脚本中的python环境，将yum执行的python环境指向了python2.4

再次执行yum就恢复正常了