http://lloydsheng.com/2010/05/how-to-update-python-in-centos.html
- $rpm -Uvh http://yum.chrislea.com/centos/5/i386/chl-release-5-3.noarch.rpm
- $rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-CHL
- $rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-3.noarch.rpm
- $yum install libffi
- $yum install python26
