估計是之前更改過這個虛機的配置，故現(xiàn)在正常步驟安裝完yum之后，無法使用，

具體表現(xiàn)在 執(zhí)行

yum makecache的時候報錯，現(xiàn)在no module name yum

結(jié)果發(fā)現(xiàn)，無論怎么修改 usr/bin/yum的配置文件，都無法成功

解決上面問題的方法，第一個方案，都刪除掉重新安裝。

卸載系統(tǒng)默認(rèn)python 后yum 無法使用的恢復(fù)辦法?blog.csdn.net

第二個方案，報錯的是，哪個報錯，處理哪個？

之前配置yum的過程

參考文章，

CentOS7 重裝yum并且配置163國內(nèi)鏡像源?juejin.im

1，下載

centos7上安裝，下面的link在下載過程中，直接查找關(guān)鍵字就可以了

http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-3.4.3-167.el7.centos.noarch.rpm

http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm2，

http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-53.el7.noarch.rpm

http://mirrors.163.com/centos/7/os/x86_64/Packages/python-iniparse-0.4-9.el7.noarch.rpm

2，安裝python需要的包

wget http://mirrors.163.com/centos/7/os/x86_64/Packages/python-2.7.5-88.el7.x86_64.rpm

wget http://mirrors.163.com/centos/7/os/x86_64/Packages/python-backports-1.0-8.el7.x86_64.rpm

wget http://mirrors.163.com/centos/7/os/x86_64/Packages/python-backports-ssl_match_hostname-3.5.0.1-1.el7.noarch.rpm

wget http://mirrors.163.com/centos/7/os/x86_64/Packages/python-chardet-2.2.1-3.el7.noarch.rpm

wget http://mirrors.163.com/centos/7/os/x86_64/Packages/python-iniparse-0.4-9.el7.noarch.rpm

wget http://mirrors.163.com/centos/7/os/x86_64/Packages/python-ipaddress-1.0.16-2.el7.noarch.rpm

wget http://mirrors.163.com/centos/7/os/x86_64/Packages/python-kitchen-1.1.1-5.el7.noarch.rpm

wget http://mirrors.163.com/centos/7/os/x86_64/Packages/python-libs-2.7.5-88.el7.x86_64.rpm

wget http://mirrors.163.com/centos/7/os/x86_64/Packages/python-pycurl-7.19.0-19.el7.x86_64.rpm

wget http://mirrors.163.com/centos/7/os/x86_64/Packages/python-setuptools-0.9.8-7.el7.noarch.rpm

wget http://mirrors.163.com/centos/7/os/x86_64/Packages/python-urlgrabber-3.10-10.el7.noarch.rpm

wget http://mirrors.163.com/centos/7/os/x86_64/Packages/rpm-python-4.11.3-43.el7.x86_64.rpm

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

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