Linux-Linux系统删除centos7中自带有python2.7以及安装Python3.7

删除centos7中自带有python2.7

（1）强制删除已安装python及其关联
 rpm -qa|grep python|xargs rpm -ev --allmatches --nodeps
（2）删除残余文件
 whereis python|xargs rm -frv

Linux系统上安装Python3.7

https://www.cnblogs.com/qingyuanyuanxi/p/7985626.html


下载源码包  进入官网https://www.python.org/      找到第一个Downloads下载 Source code是源码

python3: 
/usr/local/bin/python3.7m 
/usr/local/bin/python3.7 
/usr/local/bin/python3.7m-config 
/usr/local/bin/python3 
/usr/local/bin/python3.7-config 
/usr/local/lib/python3.7 
/usr/local/python3.7