1，下载Python3.6
wget https://www.python.org/ftp/python/3.6.2/Python-3.6.2.tar.xz
2，解压Python3.6
tar -xvJf Python-3.6.2.tar.xz
3，安装相关包
yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc make
4，进入到Python3解压后的文件夹
cd /Python-3.6.2/
5，编译安装，且安装到usr/local/python3
./configure prefix=/usr/local/python3
make && make install
6，添加Python3的软链接到用户执行目录usr/bin
ln -s /usr/local/python3/bin/python3 /usr/bin/python3
7，测试，输入python3 -V
如果显示Python 3.6.2就是成功了