django 常用的导入

from django.db import models

# 这个是用户常用操作

from django.conf import settings

from django.contrib.auth.models import User

AUTH_USER_MODEL = getattr(settings, 'AUTH_USER_MODEL', User)

# 或者

AUTH_USER_MODEL = settings.AUTH_USER_MODEL   # 更方便一些

from django.contrib.auth import get_user_model

User = get_user_model()