1、下载Python3.4安装包
wget https://www.python.org/ftp/python/3.4.4/Python-3.4.4.tgz
2、解压、编译、安装
tar zxvf Python-3.4..tgz
cd Python-3.4.
./configure --prefix=/usr/local/python3
make
make install
3、创建Python3.4的链接(CentOS6.7默认安装的是Python2)
cd /usr/bin/
ln -s /usr/local/python3/bin/python3. python3
4、验证