Ming ODM

Ming is a Python toolkit providing schema enforcement, an object/document mapper, an in-memory database, and various other goodies developed at SourceForge during our rewrite of the site from a PHP/Postgres stack to a Python/MongoDB one.

While this dynamic behavior is handy in a rapid development environment where you might delete and re-create the database many times a day, it starts to be a problem when you need to make guarantees of the type of data in a collection (because you code depends on it). The goal of Ming is to allow you to specify the schema for your data in Python code and then develop in confidence, knowing the format of data you get from a query

http://blog.mongodb.org/post/27907941873/using-the-python-toolkit-ming-to-accelerate-your

Mongodb Aggregation Examples

Provides the ability to write queries similar to using group by in SQL without using map-reduce.

http://docs.mongodb.org/manual/tutorial/aggregation-examples/