wget http://vault.centos.org/7.5.1804/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-45.el7.noarch.rpm
wget http://vault.centos.org/7.5.1804/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm
wget http://vault.centos.org/7.5.1804/os/x86_64/Packages/yum-3.4.3-158.el7.centos.noarch.rpm
wget http://vault.centos.org/7.5.1804/os/x86_64/Packages/yum-3.4.3-158.el7.centos.noarch.rpm
wget http://vault.centos.org/7.5.1804/os/x86_64/Packages/yum-3.4.3-158.el7.centos.noarch.rpm
wget http://vault.centos.org/7.0.1406/os/x86_64/Packages/cpp-4.8.2-16.el7.x86_64.rpm
wget http://vault.centos.org/7.0.1406/os/x86_64/Packages/gcc-4.8.2-16.el7.x86_64.rpm
wget http://vault.centos.org/7.0.1406/os/x86_64/Packages/glibc-2.17-55.el7.x86_64.rpm
wget http://vault.centos.org/7.0.1406/os/x86_64/Packages/glibc-common-2.17-55.el7.x86_64.rpm
wget http://vault.centos.org/7.0.1406/os/x86_64/Packages/glibc-devel-2.17-55.el7.x86_64.rpm
wget http://vault.centos.org/7.0.1406/os/x86_64/Packages/glibc-headers-2.17-55.el7.x86_64.rpm
wget http://vault.centos.org/7.0.1406/os/x86_64/Packages/glibc-static-2.17-55.el7.x86_64.rpm
wget http://vault.centos.org/7.0.1406/os/x86_64/Packages/glibc-utils-2.17-55.el7.x86_64.rpm
wget http://vault.centos.org/7.0.1406/os/x86_64/Packages/kernel-headers-3.10.0-123.el7.x86_64.rpm
wget http://vault.centos.org/7.0.1406/os/x86_64/Packages/libmpc-1.0.1-3.el7.x86_64.rpm
wget http://vault.centos.org/7.0.1406/os/x86_64/Packages/mpfr-3.1.1-4.el7.x86_64.rpm
rpm -ivh ppl-0.10.2-11.el6.x86_64.rpm --nodeps --force
rpm -ivh cloog-ppl-0.15.7-1.2.el6.x86_64.rpm --nodeps --force
rpm -ivh mpfr-2.4.1-6.el6.x86_64.rpm --nodeps --force
rpm -ivh cpp-4.4.6-4.el6.x86_64.rpm --nodeps --force
rpm -ivh kernel-headers-2.6.32-279.el6.x86_64.rpm --nodeps --force
rpm -ivh glibc-headers-2.12-1.80.el6.x86_64.rpm --nodeps --force
rpm -ivh glibc-devel-2.12-1.80.el6.x86_64.rpm --nodeps --force
rpm -ivh gcc-4.4.6-4.el6.x86_64.rpm --nodeps --force
rpm -ivh libstdc+±devel-4.4.6-4.el6.x86_64.rpm --nodeps --force
rpm -ivh gcc-c+±4.4.6-4.el6.x86_64.rpm --nodeps --force
删除数据：SysUserDeptPost{userId=10176, deptId=204, postId=110, mainPost=false, endTime=Tue Aug 18 00:00:00 CST 2020}
ln -s /usr/python37/bin/python3.7 /usr/bin/python
ln -s /usr/python37/bin/python3.7 /usr/bin/python
ln -s /usr/python37/bin/pip3 /usr/bin/pip
ln -s /usr/python275/bin/python2 /usr/bin/python2
ln -s /usr/python275/bin/pip2 /usr/bin/pip2
wget https://mirrors.huaweicloud.com/python/2.6.0/Python-2.6.0.tgz
wget https://mirrors.huaweicloud.com/python/2.7.1/Python-2.7.1.tgz
tar -xvzf Python-2.7.1.tgz
./configure --prefix=/usr/python271 --with-ssl
make
make install
ln -s /usr/python271/bin/python2.7 /usr/bin/python271
ln -s /usr/python26/bin/python2.6 /usr/bin/python2.6
Linux删除系统自带版本Python过程详解
巨坑，切忌不要轻易删除Linux系统自带版本的Python
1.卸载python（防止未卸载干净）
rpm -qa|grep python|xargs rpm -ev --allmatches --nodeps #强制删除已安装程序及其关联
whereis python|xargs rm -frv #删除所有残余文件 #xargs，允许你对输出执行其他某些命令
2.卸载yum
rpm -qa|grep yum|xargs rpm -ev --allmatches --nodeps
rm -rf /etc/yum.repos.d/*
whereis yum|xargs rm -frv
3.验证是否删除干净
whereis python #验证删除，应该是没有结果返回
whereis yum
4.安装python和yum
软件下载地址（我这里系统是centos 7.5.1804）
查看linux系统版本：cat /etc/redhat-release
http://vault.centos.org/7.5.1804/os/x86_64/Packages/
所需文件如下：（下载自己系统对应版本的就好）
wget http://vault.centos.org/7.5.1804/os/x86_64/Packages/lvm2-python-libs-2.02.177-4.el7.x86_64.rpm
wget http://vault.centos.org/7.5.1804/os/x86_64/Packages/libxml2-python-2.9.1-6.el7_2.3.x86_64.rpm
wget http://vault.centos.org/7.5.1804/os/x86_64/Packages/python-libs-2.7.5-68.el7.x86_64.rpm
wget http://vault.centos.org/7.5.1804/os/x86_64/Packages/python-ipaddress-1.0.16-2.el7.noarch.rpm
wget http://vault.centos.org/7.5.1804/os/x86_64/Packages/python-backports-1.0-8.el7.x86_64.rpm
wget http://vault.centos.org/7.5.1804/os/x86_64/Packages/python-backports-ssl_match_hostname-3.5.0.1-1.el7.noarch.rpm
wget http://vault.centos.org/7.5.1804/os/x86_64/Packages/python-2.7.5-68.el7.x86_64.rpm
wget http://vault.centos.org/7.5.1804/os/x86_64/Packages/python-iniparse-0.4-9.el7.noarch.rpm
wget http://vault.centos.org/7.5.1804/os/x86_64/Packages/python-pycurl-7.19.0-19.el7.x86_64.rpm
wget http://vault.centos.org/7.5.1804/os/x86_64/Packages/python-urlgrabber-3.10-8.el7.noarch.rpm
wget http://vault.centos.org/7.5.1804/os/x86_64/Packages/python-setuptools-0.9.8-7.el7.noarch.rpm
wget http://vault.centos.org/7.5.1804/os/x86_64/Packages/python-kitchen-1.1.1-5.el7.noarch.rpm
wget http://vault.centos.org/7.5.1804/os/x86_64/Packages/python-chardet-2.2.1-1.el7_1.noarch.rpm
wget http://vault.centos.org/7.5.1804/os/x86_64/Packages/rpm-python-4.11.3-32.el7.x86_64.rpm
wget http://vault.centos.org/7.5.1804/os/x86_64/Packages/yum-utils-1.1.31-45.el7.noarch.rpm
wget http://vault.centos.org/7.5.1804/os/x86_64/Packages/yum-3.4.3-158.el7.centos.noarch.rpm
wget http://vault.centos.org/7.5.1804/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm
wget http://vault.centos.org/7.5.1804/os/x86_64/Packages/yum-plugin-aliases-1.1.31-45.el7.noarch.rpm
wget http://vault.centos.org/7.5.1804/os/x86_64/Packages/yum-plugin-protectbase-1.1.31-45.el7.noarch.rpm
wget http://vault.centos.org/7.5.1804/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-45.el7.noarch.rpm
5.上传并安装
我这里是或取链接后直接wget到一个目录中的，直接进入目录执行一下命令即可
rpm -Uvh --replacepkgs lvm2-python-libs*.rpm --nodeps --force
rpm -Uvh --replacepkgs libxml2-python*.rpm --nodeps --force
rpm -Uvh --replacepkgs python*.rpm --nodeps --force
rpm -Uvh --replacepkgs rpm-python*.rpm yum*.rpm --nodeps --force
安装成功后执行
yum
python
首先备份/etc/yum.repos.d/CentOS-Base.repo
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
下载对应版本repo文件, 放入/etc/yum.repos.d/(操作前请做好相应备份)
CentOS7 wget http://mirrors.163.com/.help/CentOS7-Base-163.repo
CentOS6
CentOS5
运行以下命令生成缓存