wget http://python.org/ftp/python/2.7.8/Python-2.7.8.tgz tar zxvf Python-2.7.8.tgz cd Python-2.7.8 ./configure --prefix=/usr/local/python27 make & make install mv /usr/bin/python /usr/bin/python_old ln -s /usr/local/python27/bin/python /usr/bin/
修改yum
vim /usr/bin/yum
#!/usr/bin/python_old
