django信号量

1，在app下创建signals.py
from django.contrib.auth import get_user_model
from django.db.models.signals import post_save
from django.dispatch import receiver
User = get_user_model()
 
@receiver(post_save, sender=User)
def create_user(sender, instance=None, created=False, **kwargs):
    if created:
        password = instance.password
        instance.set_password(password)
        instance.save() 
2, signal接受函数需要确保将此代码段放置在已安装的models.py模块或Django在启动时导入的其他位置
  加载signals设置: apps/users/init.py中填写:
   default_app_config = 'users.apps.UsersConfig'
 
3,随后在apps/user/app.py的config类下重写ready方法:
    from django.apps import AppConfig
class UsersConfig(AppConfig):
    pass
    def ready(self):
        import users.signals