old_contents: # -*- coding: utf-8 -*-
  """相关设置"""
  import os
  
  # MongoDB Settings
  MONGODB_HOST = "some_host_string"
  MONGODB_PORT = 27017
  MONGODB_DBNAME = 'some_db'
  MONGODB_USERNAME = 'username'
  MONGO_PASSWORD = os.getenv('MONGO_PASSWORD')
  
  # Redis Settings
  REDIS_HOST = 'some_host_string'
  REDIS_PORT = 6379
  REDIS_DB = 0
  REDIS_PASSWORD = os.getenv('REDIS_PASSWORD')
  
new_contents: # -*- coding: utf-8 -*-
  """相关设置"""
  import os
  
  # MongoDB Settings
  MONGODB_HOST = "some_host_string"
  MONGODB_PORT = 27017
  MONGODB_DBNAME = 'some_db'
  MONGODB_USERNAME = 'username'
  MONGO_PASSWORD = os.getenv('MONGO_PASSWORD')
  
  # Redis Settings
  REDIS_HOST = 'some_host_string'
  REDIS_PORT = 6379
  REDIS_DB = 0
  REDIS_PASSWORD = os.getenv('REDIS_PASSWORD')
  
  # Mysql Settings 
  MYSQL_HOST = '192.168.0.110'
  MYSQL_PORT = 3306
  MYSQL_DBNAME = "some_db"
  MYSQL_USERNAME = "username"
  MYSQL_PASSWORD = os.getenv('MYSQL_PASSWORD')
  
  #Neo4j Setings
  NEO4J_HOST = '192.168.0.97'
  NEO4J_PORT = 7474
  #NEO4J_DBNAME = "disease"
  NEO4J_USERNAME = "neo4j"
  NEO4J_PASSWORD = os.getenv('NEO4J_PASSWORD')
  
subject: Update settings.py