Redhat / CentOS 6.x users need python 2.7

I also have CentOS 6. (There is a huge installed base of CentOS6, I have a feeling this is goign to be a common problem)

I have installed python 2.7 and set it up as the default python

‘# alias python=/usr/local/bin/python2.7
’# python --version
Python 2.7.6

When I run the following:
./letsencrypt-auto --help

I get the following. Can someone explain what’s going on here?

Bootstrapping dependencies for RedHat-based OSes…
yum is /usr/bin/yum
Loaded plugins: fastestmirror, security
Setting up Install Process
Loading mirror speeds from cached hostfile
Package python-2.6.6-64.el6.x86_64 already installed and latest version
Package python-devel-2.6.6-64.el6.x86_64 already installed and latest version
No package python-virtualenv available.
Nothing to do
Loaded plugins: fastestmirror, security
Setting up Install Process
Loading mirror speeds from cached hostfile
Package git-1.7.1-3.el6_4.1.x86_64 already installed and latest version
Package gcc-4.4.7-16.el6.x86_64 already installed and latest version
Package dialog-1.1-9.20080819.1.el6.x86_64 already installed and latest version
Package augeas-libs-1.0.0-10.el6.x86_64 already installed and latest version
Package openssl-devel-1.0.1e-42.el6.x86_64 already installed and latest version
Package libffi-devel-3.0.5-3.2.el6.x86_64 already installed and latest version
Package redhat-rpm-config-9.0.3-44.el6.centos.noarch already installed and latest version
Package ca-certificates-2015.2.4-65.0.1.el6_6.noarch already installed and latest version
Nothing to do
WARNING: Python 2.6 support is very experimental at present…
if you would like to work on improving it, please ensure you have backups
and then run this script again with the --debug flag!