Python 2.7 and Python 3.3 on CentOS 6
Here’s a brilliant article on how to add python 2.7 and 3.3 to a CentOS server which defaults to 2.6 without breaking anything: http://toomuchdata.com/2014/02/16/how-to-install-python-on-centos/ Especially useful is the last section on creating and using an isolated environment.