yum groupinstall "Development tools"
yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel
2、下载Python3.5的源码包并编译
wget https://www.python.org/ftp/python/3.5.0/Python-3.5.0.tgz
tar xf Python-3.5.0.tgz
cd Python-3.5.0
./configure --prefix=/usr/local --enable-shared
make
make install
ln –s /usr/local/bin/python3 /usr/bin/python3
3、在运行Python之前需要配置库：
echo /usr/local/lib >> /etc/ld.so.conf.d/local.conf ldconfig
4、运行演示：
python3 --version Python 3.5.0
5、删除编译Python时所需要的库
yum groupremove "Development tools" --remove-leaveas
yum remove zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel --remove-leaves
6、设置别名方便使用
alias py=python3
http://www.cnblogs.com/wtcl/p/6475755.html?utm_source=itdadao&utm_medium=referral