TypeError: __call__() missing 1 required positional argument: 'send'

[Zhaoxun]

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)

OS =Windows 7-64bit
Python = 3.7.9

pip-freeze:

daphne==3.0.2
Django==3.2.6
docopt==0.6.2
et-xmlfile==1.0.1
future==0.18.2
hyperlink==21.0.0
idna==2.10
importlib-metadata==3.7.2
incremental==21.3.0
numpy==1.20.1
openpyxl==3.0.7
pandas==1.2.3
pefile==2019.4.18
pipdeptree==2.0.0
pipreqs==0.4.10
pyasn1==0.4.8
pyasn1-modules==0.2.8
pycparser==2.20
pyinstaller==4.2
pyinstaller-hooks-contrib==2021.1
pyOpenSSL==20.0.1
PyQt5==5.13.0
PyQt5-sip==12.8.1
pyqt5-tools==5.13.0.1.5
python-dateutil==2.8.1
python-dotenv==0.15.0
pytz==2021.1
pywin32-ctypes==0.2.0
requests==2.25.1
service-identity==21.1.0
six==1.15.0
sqlparse==0.4.1
Twisted==21.7.0
twisted-iocpsupport==1.0.1
txaio==21.2.1
typing-extensions==3.7.4.3
urllib3==1.26.4
websocket-client==1.1.1
websockets==8.1
xlrd==1.2.0
XlsxWriter==1.3.7
xlwt==1.3.0
yarg==0.1.9
zipp==3.4.1
zope.interface==5.4.0

full Traceback:

daphne.server - ERROR - Exception inside application: call() missing 1 required positional argument: 'send'
Traceback (most recent call last):
File "C:\Python37\Lib\site-packages\channels\staticfiles.py", line 44, in call
return await self.application(scope, receive, send)
File "C:\Python37\Lib\site-packages\channels\routing.py", line 71, in call
return await application(scope, receive, send)
File "C:\Python37\Lib\site-packages\channels\sessions.py", line 47, in call
return await self.inner(dict(scope, cookies=cookies), receive, send)
File "C:\Python37\Lib\site-packages\channels\sessions.py", line 263, in call
return await self.inner(wrapper.scope, receive, wrapper.send)
File "C:\Python37\Lib\site-packages\channels\auth.py", line 185, in call
return await super().call(scope, receive, send)
File "C:\Python37\Lib\site-packages\channels\middleware.py", line 26, in call
return await self.inner(scope, receive, send)
File "C:\Python37\Lib\site-packages\channels\routing.py", line 160, in call
send,
File "C:\Python37\Lib\site-packages\asgiref\compatibility.py", line 35, in new_application
return await instance(receive, send)
TypeError: call() missing 1 required positional argument: 'send'

[carltongibson]

Likely you missed the as_asgi() in your routing.py