centos6.5 安装python2.7.12

使用root用户身份执行
1.首先安装python所依赖的第三方库

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

2.下载python2.7.12源码包

wget https://www.python.org/ftp/python/2.7.12/Python-2.7.12.tgz

3.解压与安装

tar -xzvf Python-2.7.12.tgzcd Python-2.7.12./configure --prefix=/usr/local/pythonmake && make altinstall

4.备份已有的python

mv /usr/bin/python{,.2.6}

5.建立软链接到python2.7.12

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

6.修改yum，yum使用的python是2.6版本

vi /usr/bin/yum将 #!/usr/bin/python 改为#!/usr/bin/python.2.6