I actually built a MongoDB query interface for SQL via Python+SQLAlchemy. It allows you to query your relational database just like you would with MongoDB, and

I actually built a MongoDB query interface for SQL via Python+SQLAlchemy. It allows you to query your relational database just like you would with MongoDB, and in addition use some things (e.g. Joins in queries or "deep querying") that are not possible using MongoDB. Here's the repo: https://github.com/adewes/blitzdb https://github.com/adewes/blitzdb The implementation is stable but I'm still working on finishing Python3 support and documentation.