old_contents: from flask import Flask
  from flask.ext.sqlalchemy import SQLAlchemy
  from flask.ext.script import Manager
  from flask.ext.migrate import Migrate, MigrateCommand
  
  from app import app
  app = Flask(__name__)
  app.config.from_object('config')
  
  db = SQLAlchemy(app)
  migrate = Migrate(app, db)
  
  manager = Manager(app)
  manager.add_command('db', MigrateCommand)
  
  if __name__ == '__main__':
      manager.run()
new_contents: from flask import Flask
  from flask.ext.sqlalchemy import SQLAlchemy
  from flask.ext.script import Manager
  from flask.ext.migrate import Migrate, MigrateCommand
  
  from app import app
  app = Flask(__name__)
  app.config.from_object('config.DevelopmentConfig')
  
  db = SQLAlchemy(app)
  migrate = Migrate(app, db)
  
  manager = Manager(app)
  manager.add_command('db', MigrateCommand)
  
  if __name__ == '__main__':
      manager.run()
  
subject: Change config settings in manage.py