MongoEngine

MongoEngine is a Document-Object Mapper (think ORM, but for document databases) for working with MongoDB from Python. It uses a simple declarative API, similar to the Django ORM.

MongoEngine is a project from the Traction Digital labs.

from mongoengine import *                           # To define a schema for a 
                                                    # document, we create a 
class Metadata(EmbeddedDocument):                  # class that inherits from 
    tags = ListField(StringField())                 # Document. 
    revisions = ListField(IntField())               #                        
                                                    # Fields are specified by 
class WikiPage(Document):                          # adding field objects as 
    title = StringField(required=True)              # class attributes to the 
    text = StringField()                            # document class. 
    metadata = EmbeddedDocumentField(Metadata)      # 
                                                    # Querying is achieved by 
>>> page.title = “Hello, World!”                    # calling the objects 
>>> for page in WikiPage.objects:                   # attribute on a document 
>>>     print page.title                            # class.