mongodb - Flask MongoLab MongoKit

Question

非常に単純な次のコードがあります。

from flask import Flask
from flask.ext.mongokit import MongoKit, Document
from pymongo import Connection
from pymongo import collection
from pymongo import database
from flask.ext.mongokit import MongoKit, Document
from datetime import datetime
from bson.objectid import ObjectId

app = Flask(__name__)

class data(Document):
    __collection__ = 'xusers'
    __database__ = 'database22'
    structure = {
        'email' : unicode,
        }
app.config['MONGODB_DATABASE'] = 'flask'
app.config['MONGODB_HOST'] = 'localhost' 
app.config['MONGODB_PORT'] = 27017
app.config['MONGODB_USERNAME'] = None
app.config['MONGODB_PASSWORD'] = None   

database22 = MongoKit(app)
database22.register([data])

admin = database22.data()
admin.email = 'admin@admin.com'

次のエラーが発生し続けます。

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/v2/venv/lib/python2.7/site-packages/flask_mongokit.py", line 238, in __getattr__
    self.connect()
  File "/Users/v2/venv/lib/python2.7/site-packages/flask_mongokit.py", line 196, in connect
    host=ctx.app.config.get('MONGODB_HOST'),

それは私を夢中にさせています、どんな助けも本当に感謝しています。

ありがとうございました！