Install directly from git using PIP:
pip install git+git://github.com/didip/beaker_extensions.git
Now you can use the redis, tyrant, riak, dynomite, and ringo extensions.
beaker.session.type = tyrant beaker.session.url = 127.0.0.1:1978
Thanks to Jack Hsu for providing the tokyo example: http://www.jackhsu.com/2009/05/27/pylons-with-tokyo-cabinet-beaker-sessions