-有兩套配置檔案,預設配置,使用者的配置
-如果某個欄位,使用者配置了,就用使用者的,如果沒配置,就用預設的

啟動—test.py

import os

os.environ.setdefault('user_setting', 'usersetting.setting')

from conf import settings

print(settings.DEBUG)

conf—__init__.py

import os
import importlib
from conf import globalsetting


class
 
 Setting:
    def __init__(self):
        user_setting = os.environ.get('user_setting')
        for setting in dir(globalsetting):
            if setting.isupper():
              setattr(self, setting, getattr(globalsetting, setting))

        mod = importlib.import_module(user_setting)

        
 
for setting in dir(mod):
            if setting.isupper():
                setattr(self, setting, getattr(mod, setting))


settings = Setting()