new_contents: # -*- coding: utf-8 -*-
  """相关设置"""
  import os
  
  MONGODB_HOST = "some_host_string"
  MONGODB_PORT = 27017
  MONGODB_DBNAME = 'some_db'
  MONGODB_USERNAME = 'username'
  MONGO_PASSWORD = os.getenv('MONGO_PASSWORD')
  
subject: Create settings.py