yum命令执行报错（python升级导致）

huazhi

　　升级python版本后，yum无法使用。
　　1、报错信息如下：
　　

• [root@develop local]# yum -y install prce
  
• 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:
  
• 2.6.1 (r261:67515, Aug 7 2010, 11:36:17)
  
• [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
  

　　

　　错误原因：错误信息描述为 yum 所依赖的python 不相符，请安装相对应的python即可
　　2、执行yum查看信息
　　

• [root@develop bin]# 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:
  
• 2.6.1 (r261:67515, Aug 7 2010, 11:36:17)
  
• [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
  
• 提示当前版本是2.6.1可能版本不匹配。没有yum依赖的包。
  

　　

　　3、查看yum版本
　　

• [root@develop local]# rpm -qa |grep yum
  
• yum-3.2.8-9.el5.centos.1
  
• yum-metadata-parser-1.1.2-2.el5
  

　　

　　4、查看python版本
　　

• [root@develop local]# whereis python
  
• python: /usr/bin/python2.4 /usr/bin/python /usr/lib/python2.4 /usr/local/bin/python2.6 /usr/local/bin/python2.6-config /usr/local/bin/python /usr/local/lib/python2.6 /usr/share/man/man1/python.1.gz
  

　　

　　果然装了两个版本python
　　5、执行python，查看到使用2.6.1的版本
　　

• [root@develop local]# python
  
• Python 2.6.1 (r261:67515, Aug 7 2010, 11:36:17)
  
• [GCC 4.1.2 20080704 (Red Hat 4.1.2-44)] on linux2
  
• Type "help", "copyright", "credits" or "license" for more information.
  
• >>>
  

　　

　　6、猜测yum调用了高版本的python。
　　7、解决方法：
　　查找yum文件,并编辑此py文件
　　

• [root@develop local]# which yum
  
• /usr/bin/yum
  
• [root@develop local]# vi /usr/bin/yum
  
• 将
  
• #!/usr/bin/python
  
• 改为:
  
• #!/usr/bin/python2.4
  
• 然后保存OK.
  

　　

　　补充：yum基于python写的。
　　声明：本博客 转载、收集、整理了一些他人文章，当时仅提供自己学习之用，时间久远，已不知其具体出处。敬请前辈们海涵。