gist.py

from flask import Flask
from mongoengine import connect
from flask.ext.admin import Admin
from flask.ext.admin.contrib.mongoengine import ModelView

from flask.ext.mongoengine import MongoEngine


class Config(object):
    DEBUG = True
    MONGODB_SETTINGS = {
        'DB': 'db',
        'HOST': 'mongodb://localhost:27017/db', 'alias': 'default'
    }
    SECRET_KEY = 'dogrj0e94jt0pjfpa8jw3rq098jw'


app = Flask(__name__)
app.config.from_object(Config)

db = MongoEngine(app)
admin = Admin(app)


class Model(db.Document):
    text = db.StringField(verbose_name='Sid', max_length=255)
    stock_count = db.IntField(required=True, default=0)


admin.add_view(ModelView(Model, name='Apps'))

print app.config
app.run()

Same issue with this too.