1.下载python2.7.x
wget https://www.python.org/ftp/python/2.7.13/Python-2.7.13.tgz
2.解压并编译安装
tar -zxvf Python-2.7.6.tgz && cd Python-2.7.6 && ./configure && make all && make install && make clean && make distclean
3.检查安装
/usr/local/bin/python2.7 -V
4.建立软连接，使用系统默认的python指向
mv /usr/bin/python /usr/bin/python2.6.6
ln -s /usr/local/bin/python2.7 /usr/bin/python
5.检查
python -V
