1.yum groupinstall “Development tools”

2.安装编译Python需要的组件

yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel

3.下载并解压最新Python 2.7的源代码

wget https://www.python.org/ftp/python/2.7.10/Python-2.7.10.tar.xz 
tar xf Python-2.7.10.tar.xz

4.编译与安装Python

cd Python-2.7.10 
./configure –prefix=/usr/local

make && make install 
make clean 
make distclean

5.将系统python命令指向Python 2.7

mv /usr/bin/python /usr/bin/python2.6.6 
ln -s /usr/local/bin/python2.7 /usr/bin/python

6.将yum需要执行的python指定为2.6.6

vi /usr/bin/yum

将文件头部的

#!/usr/bin/python

改成

#!/usr/bin/python2.6.6