Currently available as a DIY: https://github.com/openshift/openshift-diy-py27-django
We are working on a python 2.7 cartridge. [UPDATE March 4, 2013: Done! Scroll to the bottom!]
I'd like to contribute to the making of python 2.7 cartridge. Should there be a separate git repo for python 2.7 cartridge? It would make things easier.
Thanks much for your willingness to help. Best would be to initiate an email to our mailing list where devs lives and breathe.
Register @ http://lists.openshift.redhat.com): firstname.lastname@example.org and send an email there.
rhc app create newpythonapp python-2.7
rhc app create evennewerpythonapp python-3.3
Details here: https://www.openshift.com/blogs/host-python-in-a-community-cart