原创

CentOS7.2.1511卸载并重新安装python2.7及yum

1.卸载:

#rpm -qa|grep python|xargs rpm -e --allmatches --nodeps

#whereis python|xargs rm -fr

2.卸载的yum:

#rpm -qa|grep yum|xargs rpm -e --allmatches --nodeps

#rm -rf /etc/yum.repos.d/*

#whereis yum|xargs rm -fr


3.创建目录蟒和荫用以存放rpm包:

#mkdir /usr/local/src/python

#mkdir /usr/local/src/yum

4.使用的wget分别下载蟒以及荫的rpm包(注意:一定要和系统的版本号对应)

    (1)下载蟒的rpm包:

#cd /usr/local/src/python        进入目录

#wget http://vault.centos.org/7.2.1511/os/x86_64/Packages/python-2.7.5-34.el7.x86_64.rpm
#wget http://vault.centos.org/7.2.1511/os/x86_64/Packages/python-iniparse-0.4-9.el7.noarch.rpm
#wget http://vault.centos.org/7.2.1511/os/x86_64/Packages/python-pycurl-7.19.0-17.el7.x86_64.rpm
#wget http://vault.centos.org/7.2.1511/os/x86_64/Packages/python-devel-2.7.5-34.el7.x86_64.rpm
#wget http://vault.centos.org/7.2.1511/os/x86_64/Packages/python-libs-2.7.5-34.el7.x86_64.rpm
#wget http://vault.centos.org/7.2.1511/os/x86_64/Packages/python-urlgrabber-3.10-7.el7.noarch.rpm
#wget http://vault.centos.org/7.2.1511/os/x86_64/Packages/rpm-python-4.11.3-17.el7.x86_64.rpm

    (2)下载荫的rpm包:

#cd /usr/local/src/yum        

#wget http://vault.centos.org/7.2.1511/os/x86_64/Packages/yum-3.4.3-132.el7.centos.0.1.noarch.rpm
#wget http://vault.centos.org/7.2.1511/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm
#wget http://vault.centos.org/7.2.1511/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-34.el7.noarch.rpm

5.安装蟒以及荫的rpm包

    (1)安装蟒:

#cd /usr/local/src/python 

#rpm -ivh python-*   rpm-python-* 

           出现安装包的依赖问题,此时如下解决即可:

#rpm -ivh python-*   rpm-python-* --nodeps --force

            --nodeps --force为不考虑依赖包,强制安装。

            安装完后即可运行蟒蛇:


    (2)安装荫:

#cd /usr/local/src/yum 

#rpm -ivh yum-* 
        至此百胜重新安装成功!










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