we have a ticket from a ways back referring to the task of getting this to work on GAE:
I was having some communication with Wesley Chun at the time but somehow the task fell by the wayside.
However, the good news is that we're in very good shape to support their backend, which is a MySQL derivation. Depending on the specifics of their implementation we may be able to re-use sqlalchemy.connectors.mysqldb or similar - in any case it would likely be based on mysql.dialects.mysql and not require very much code at all. It's just a matter of someone getting a basic "hello world" test running on GAE to get started. I'm just not sure how one runs unit tests on GAE.