Centos7 安装python3.6 设置默认

sudo yum update
sudo yum install yum-utils
sudo yum groupinstall development
sudo yum install https://centos7.iuscommunity.org/ius-release.rpm
sudo yum install python36u
sudo yum install python36u-pip
sudo yum install python36u-devel 

默认 修改/root/.bashrc添加并重启

alias python='/usr/bin/python3.6'
pip3.6 install requests