yum install -y readline-devel wget vim gc
wget https://www.python.org/ftp/python/3.5.1/Python-3.5.1.tgz
tar zxf Python-3.5.1.tgz
cd Python-3.5.1/
./configure --prefix=/usr/local/python3
ln -s /usr/local/python3/bin/python3 /usr/bin/python3
原文：http://www.cnblogs.com/hygs/p/5583960.html