So far as our code and the code of another user, we have passed self as the
first argument in the definition of a function/method.
relating code in consumers.py:
from channels.generic.websocket import AsyncWebsocketConsumer import json
class Trade(AsyncWebsocketConsumer):
async def my_send(self, data):
if isinstance(data, dict):
d = json.dumps(data)
else:
d = str(data)
await self.send(d)
Another user's code:
class TestConsumer(WebsocketConsumer):
def connect(self):
在2021年11月30日星期二 UTC+8 23:13:27<ber...@autofyle.com> 写道：
> This kind of error happens when working with classes. When you create
> methods for a class, you must always pass self as the first argument
> self designates the object in which it is called. You have to pass self as
> the first argument for each method.
> Does this help ?
>
> On Tuesday, November 30, 2021 at 7:16:11 AM UTC-7 yan.z...@gmail.com
> wrote:
>
>> Hi there!
>>
>> I have posted this issue like 3 months ago.
>> https://github.com/django/channels/discussions/1736
>>
>> And there are many others encountering similar problem, like this:
>>
>> https://stackoverflow.com/questions/68194577/typeerror-call-missing-1-required-positional-argument-send-django/
>>
>> The similarity is that the codes were running all-right under older 2.x
>> versions,
>> but encounter the same error on which-ever 3.x versions of
>> django-channels.
>>
>> Would you please tell us where must be modified to be able to run on 3.x ?
>>
>> Thanks a lot!
>>
>
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