Python升级导致yum命令不能使用

发布时间：2019-08-27 08:03:04编辑：auto阅读（1682）

    错误信息如下：

    [root@bjzw-mcu01-x86p-app01 ~]# yum -y update
    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, Jul  8 2014, 22:55:29)
    [GCC 4.4.7 20120313 (Red Hat 4.4.7-4)]

    If you cannot solve this problem yourself, please go to
    the yum faq at:
      http://yum.baseurl.org/wiki/Faq

     

    排错思路：

    1.查看yum的版本号

    [root@bjzw-mcu01-x86p-app01 ~]# rpm -qa | grep yum
    yum-3.2.29-60.el6.centos.noarch
    yum-plugin-fastestmirror-1.1.30-30.el6.noarch
    yum-utils-1.1.30-30.el6.noarch
    yum-plugin-security-1.1.30-30.el6.noarch
    yum-metadata-parser-1.1.2-16.el6.x86_64

     

    2.查看python的版本号，发现有2种版本号

    [root@bjzw-mcu01-x86p-app01 ~]# whereis python
    python: /usr/bin/python2.6 /usr/bin/python /usr/lib/python2.6 /usr/lib64/python2.6 /usr/include/python2.6 /usr/local/python2.7 /usr/share/man/man1/python.1.gz

     

    3. 查看当前所使用的版本

    [root@bjzw-mcu01-x86p-app01 ~]# python
    Python 2.7.3 (default, Jul  8 2014, 22:55:29)
    [GCC 4.4.7 20120313 (Red Hat 4.4.7-4)] on linux2
    Type "help", "copyright", "credits" or "license" for more information.

     

    4.修改yum命令所使用的python版本号

    [root@bjzw-mcu01-x86p-app01 ~]# vim /usr/bin/yum

    #!/usr/bin/python2.6

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