centos 6.7 python升级至2.7

CentOS 6.7默认的Python版本为2.6.6，现升级为Python 2.7.11

1、安装编译环境

yum groupinstall “Development tools”
2、安装依赖的包

yum install gcc
yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel
3、下载Python

wget https://www.python.org/ftp/python/2.7.11/Python-2.7.11.tgz
tar zxvf Python-2.7.11.tgz
cd Python-2.7.11
4、编译安装

./configure –prefix=/usr/local/python
make && make install
5、直接调用

/usr/local/python/bin/python
6、替换旧版本

ln -sf /usr/local/python/bin/python /usr/bin/python
7、查看版本

python -V
Python 2.7.11