Turn a Mongoengine object in a json-ible dictionary

mongo_to_dict.py

def mongo_to_dict(obj):
    """ Turn a mongoengine object into a jsonible python object
    """

    return_data = []

    if isinstance(obj, db.Document):
        return_data.append(("id", str(obj.id)))

    for field_name in obj._fields:
        data = obj._data[field_name]

        if isinstance(obj._fields[field_name], db.DateTimeField):
            return_data.append((field_name, str(data.isoformat())))

        elif isinstance(obj._fields[field_name], db.StringField):
            return_data.append((field_name, str(data)))

        elif isinstance(obj._fields[field_name], db.FloatField):
            return_data.append((field_name, float(data)))

        elif isinstance(obj._fields[field_name], db.IntField):
            return_data.append((field_name, int(data)))

        elif isinstance(obj._fields[field_name], db.ListField):
            return_data.append((field_name, data))

        elif isinstance(obj._fields[field_name], db.EmbeddedDocumentField):
            return_data.append((field_name, mongo_to_dict(data)))

        elif isinstance(obj._fields[field_name], db.ObjectIdField):
            return_data.append((field_name, str(data)))

        else:
            print type(obj._fields[field_name])

    return dict(return_data)