yum File “/bin/yum“, line 30 except KeyboardInterrupt, e:

最新推荐文章于 2024-03-01 16:26:51 发布

原创最新推荐文章于 2024-03-01 16:26:51 发布 · 681 阅读

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文章描述了一台主机在升级Python版本后，yum命令出现语法错误。问题定位为yum脚本使用了Python3的异常处理方式，而系统默认链接的是Python2。通过将yum脚本的解释器路径改为Python2并解决模块导入问题，最终成功修复yum命令的运行。

yum list
  File "/bin/yum", line 30
    except KeyboardInterrupt, e:
                            ^
SyntaxError: invalid syntax

原因是主机上，升级了python的版本。查看/usr/bin/下的python信息

# ll /usr/bin/python*
lrwxrwxrwx  1 root root    24 Mar 31  2022 /usr/bin/python -> /etc/alternatives/python
lrwxrwxrwx. 1 root root     9 Apr 14  2021 /usr/bin/python2 -> python2.7
-rwxr-xr-x. 1 root root  7144 Oct 14  2020 /usr/bin/python2.7
lrwxrwxrwx  1 root root     9 Aug  6  2021 /usr/bin/python3 -> python3.6
-rwxr-xr-x  2 root root 11328 Oct 14  2020 /usr/bin/python3.6
-rwxr-xr-x  2 root root 11328 Oct 14  2020 /usr/bin/python3.6m

修改/usr/bin/yum的文件，改回python2

#!/usr/bin/python2
import sys
try:
    import yum
except ImportError:
    print >> sys.stderr, """\
There was a problem importing one of the Python modules
required to run yum. The error leading to this problem was:

   %s

Please install a package which provides this module, or
verify that the module is installed correctly.

重新执行yum命令

# yum list
Loaded plugins: fastestmirror
Skipping unreadable repository '/etc/yum.repos.d/CentOS-Base.repo'
Skipping unreadable repository '/etc/yum.repos.d/ai-local.repo'
Skipping unreadable repository '/etc/yum.repos.d/docker-ce.repo'
Skipping unreadable repository '/etc/yum.repos.d/epel-testing.repo'
Skipping unreadable repository '/etc/yum.repos.d/epel.repo'
Skipping unreadable repository '/etc/yum.repos.d/grafana.repo'
Skipping unreadable repository '/etc/yum.repos.d/paas.repo'
Determining fastest mirrors

yum命令运行正常。