Django频道，AttributeError

# models.py
class MyModel(models.Model):
    name = models.CharField(max_length=100)

# 错误的访问方式
# instance = MyModel.objects.get(id=1)
# print(instance.non_existent_field)  # 这将引发 AttributeError

# 正确的访问方式
instance = MyModel.objects.get(id=1)
print(instance.name)  # 正确

# views.py
class MyView(View):
    def my_method(self):
        pass

# 错误的调用方式
# view_instance = MyView()
# view_instance.non_existent_method()  # 这将引发 AttributeError

# 正确的调用方式
view_instance = MyView()
view_instance.my_method()  # 正确

# consumers.py
from channels.generic.websocket import AsyncWebsocketConsumer

class MyConsumer(AsyncWebsocketConsumer):
    async def connect(self):
        await self.accept()

    async def disconnect(self, close_code):
        pass

    async def receive(self, text_data):
        # 错误的属性访问
        # print(self.non_existent_attribute)  # 这将引发 AttributeError

        # 正确的属性访问
        print(self.scope)  # 正确