1.下載python-2.7.3： wget http://www.python.org/ftp/python/2.7.3/Python-2.7.3.tgz
2.解壓
tar-zxvf Python-2.7.3.tgz
3.編譯安裝
./configure
make
make install
4.因爲yum需要使用python-2.4，因此原python-2.4不能卸載
mv /usr/bin/python /usr/bin/python2.4
ln -s /usr/local/bin/python2.7 /usr/local/python
5.修改yum
vi /usr/bin/yum
將最上面的#!/usr/bin/python 改成#!/usr/bin/python2.4