安装依赖
yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel
获取源码包
wget https://www.python.org/ftp/python/3.6.6/Python-3.6.6.tgz
解压、编译安装
tar -xzvf Python-3.6.6.tgz
cd Python-3.6.6
./configure --prefix=/usr/local/python3
make all
make install
make clean
make distclean
添加软连接
ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3
ln -s /usr/local/python3/bin/python3 /usr/bin/python3