I'm looking for MondoDB Python ODM/ORM that takes the best from two worlds: ODM/ORM & ultra fast direct dictionary read. In other words package shall comply with following requirements: Allows to define and enforce schema. Allows to validate fields. Allows to read objects directly from mongodb (no ODM/ORM overhead). Collections/objects returned directly by pymongo can be accessed using ODM/ORM layer (w/o extra queries). I would imagine some kind of lazy field added by pymongo driver to objects that provides access to ORM juice (pymongo allows for such extensions). Imagine use case: For fast read we go directly to driver, For data entry we use full ODM/ORM functionality Geofields support GridFS support of normal files and images DBRef support Does not enforce any hidden, framework specific fields Will work with Flask Has forms framework. Forms cover sublists/subdicts Backbone based forms would be just awesome Creates backbone models, collections, validators based of python definition I know that I'm asking for much but wouldn't it be awesome to have something like this In fact question could be rephrased into: "Which of existing Python Mongodb ODM/ORMs (MongoKit, MongoEngine) could be easily extended this way." Continue reading...