yum执行报错No module named yummain处理

1：解决方式

1获取yummain的安装的py文件

[root@iZ2zeilmai38op3fw0apl7Z ~]# wget  http://yum.baseurl.org/download/3.4/yum-3.4.0.tar.gz

[root@iZ2zeilmai38op3fw0apl7Z ~]# tar xf yum-3.4.0.tar.gz

[root@iZ2zeilmai38op3fw0apl7Z ~]# cd yum-3.4.0

[root@iZ2zeilmai38op3fw0apl7Z yum-3.4.0]# ls
AUTHORS      cli.pyc  INSTALL     po         test       yumcommands.py
bin          COPYING  Makefile    README     TODO       yumcommands.pyc
callback.py  docs     output.py   rpmUtils   utils.py   yummain.py
ChangeLog    etc      output.pyc  shell.py   utils.pyc  yum.spec
cli.py       FAQ      PLUGINS     shell.pyc  yum        yum-updatesd.py
[root@iZ2zeilmai38op3fw0apl7Z yum-3.4.0]# ./yummain.py  install yum

base                                                         | 3.7 kB     00:00   

base/primary_db                                              | 4.5 MB     00:07   

extras                                                       | 3.5 kB     00:00   

extras/primary_db                                            |  23 kB     00:03

出现以上提示就证明yum已经安装成功了。

2：执行yum命令即可

[root@iZ2zeilmai38op3fw0apl7Z yum-3.4.0]# yum update

3:你的yum现在可以使用了

[root@iZ2zeilmai38op3fw0apl7Z yum-3.4.0]# yum install -y htop
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Resolving Dependencies
--> Running transaction check
---> Package htop.x86_64 0:2.0.2-1.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

yum执行报错No module named yummain处理

原文：http://blog.51cto.com/9025736/2063550