1、安装依赖
yum install openssl-devel bzip2-devel expat-devel gdbm-devel readline-devel sqlite-devel
2、下载python包
wget https://www.python.org/ftp/python/3.6.4/Python-3.6.4.tgz
3、解压、编译
tar xf Python-3.6.4.tgz -C /usr/local/ cd /usr/local/Python-3.6.4 ./configure make && make install
4、备份旧版本python依赖，链接新版本python
mv /usr/bin/python{,.bak} [root@zabbix-server local]# ln -s /usr/local/bin/python3.6 /usr/bin/python [root@zabbix-server local]# python -V Python 3.6.4
5、修改yum配置文件
将第一行指定的python版本改为python2.7(#!/usr/bin/python 改为 #!/usr/bin/python2.7)
原文：https://www.cnblogs.com/root0/p/9534334.html