1、CentOS6.5 安装Python 的依赖包

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

下面关于Python的文章您也可能喜欢，不妨看看：

Linux下Python的安装以及注意事项  http://www.linuxidc.com/Linux/2015-11/124861.htm

Ubuntu 14.04 下安装使用Python rq模块  http://www.linuxidc.com/Linux/2015-08/122441.htm

无需操作系统直接运行 Python 代码  http://www.linuxidc.com/Linux/2015-05/117357.htm

CentOS上源码安装Python3.4  http://www.linuxidc.com/Linux/2015-01/111870.htm

《Python核心编程 第二版》.(Wesley J. Chun ).[高清PDF中文版] http://www.linuxidc.com/Linux/2013-06/85425.htm

centos 6.5下 安装python3.5