Django-mongoengine is a project mainly written in ..., it's free.
MongoEngine bridge to Django
django-mongoengine's aim is to provide various functionalities developers are accustomed to when using Django. Currently the features on the radar are:
1. Document signals (pre_save, post_save, pre_delete, post_delete)
2. DocumentForms, similar to Django's ModelForms$ pip install django-mongoenginePrerequisites
To run tests:
$ env DJANGO_SETTINGS_MODULE=django_mongoengine.test_settings nosetests