HOSTNAME = '127.0.0.1' PORT = '3306' USERNAME = 'root' PASSWORD = '123456' DATABASE = 'database_homework' DB_URI = f'mysql+pymysql://{USERNAME}:{PASSWORD}@{HOSTNAME}:{PORT}/{DATABASE}' SQLALCHEMY_DATABASE_URI = DB_URI MAIL_SERVER = "smtp.163.com" MAIL_USE_SSL = True MAIL_PORT = 465 MAIL_USERNAME = "forever_love233@163.com" MAIL_PASSWORD = "" MAIL_DEFAULT_SENDER = "forever_love233@163.com"