CentOS6 升级Python2.7

最近在一些CentOS6 服务器上面部署项目，发现都无法正常运行，在报错日志中找到了一堆ERROR Python version < 2.7
Ok，该手动给年老失修的CentOS6手动更新Python 2.7了

检测当前Python版本

python -v

更新系统组件，安装开发工具包，安装必要组件

yum update -y
yum groupinstall "Development tools" -y
yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel -y

编译安装Python 2.7.6

cd /opt
wget --no-check-certificate https://www.python.org/ftp/python/2.7.6/Python-2.7.6.tar.xz
tar xf Python-2.7.6.tar.xz
cd Python-2.7.6
./configure --prefix=/usr/local
sudo make && sudo make altinstall

检查是否安装成功

/usr/local/bin/python2.7 --version

创建软连接

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

*原来的Python 2.6.6不能删除

善后

由于yum依赖Python 2.6.6
要给它指向原来的Python 2.6.6

vim /usr/bin/yum    #编辑yum配置文件

把第一行修改成

#!/usr/bin/python2.6.6

wq 保存退出，OK