CentOS7 安装python3.6,和python2.7共存

1. python3.6下载和安装

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

2. 查看python版本

python -V #这里会显示Python 2.7.5
python3.6 -V #这里会显示python3.6.3