2

在 Django 中添加频道时出现以下错误。

应用程序内部异常：init () 采用 1 个位置参数在 Django 3.1 中为通道添加 ASGI_APPLICATION 时

Exception inside application: __init__() takes 1 positional argument but 2 were given
Traceback (most recent call last):
  File "/home/dell/Desktop/s/s/s-env/lib/python3.6/site-packages/channels/staticfiles.py", line 44, in __call__
    return await self.application(scope, receive, send)
  File "/home/dell/Desktop/s/s/s-env/lib/python3.6/site-packages/channels/routing.py", line 71, in __call__
    return await application(scope, receive, send)
  File "/home/dell/Desktop/s/s/s-env/lib/python3.6/site-packages/channels/routing.py", line 160, in __call__
    send,
  File "/home/dell/Desktop/s/s/s-env/lib/python3.6/site-packages/asgiref/compatibility.py", line 33, in new_application
    instance = application(scope)
TypeError: __init__() takes 1 positional argument but 2 were give

该应用程序在 WSGI 配置上运行良好。上述错误仅在ASGI_APPLICATION = 'app.routing.application'添加时出现。

由于它显示源自静态文件的错误，因此我尝试再次生成静态文件，但这无济于事。

我正在使用默认的 django asgi 文件：

"""
ASGI config for mevsyou project.

It exposes the ASGI callable as a module-level variable named ``application``.

For more information on this file, see
https://docs.djangoproject.com/en/3.0/howto/deployment/asgi/
"""

import os

from django.core.asgi import get_asgi_application

os.environ.setdefault('DJANGO_SETTINGS_MODULE', 's.settings.local')

application = get_asgi_application()

s/routing.py：

from channels.routing import ProtocolTypeRouter, URLRouter
from users import routing

application = ProtocolTypeRouter({
    'http': URLRouter(routing.urlpatterns),
})
4

1 回答 1

1

您的代码适用于频道 2，而您使用的是频道 3。

在 Channels 3 中，您不应该拥有routing.py. 但是你的asgi.py文件应该是这样的：

import os

from channels.routing import ProtocolTypeRouter
from django.core.asgi import get_asgi_application

os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'mysite.settings')

application = ProtocolTypeRouter({
    "http": get_asgi_application(),
})

事实上，ASGI_APPLICATION应该设置为'app.asgi.application'。

请参阅 3.x 的频道文档

于 2020-11-19T15:41:34.557 回答