Question

Django application deployment with ASGI server

  • Posted February 21, 2022
  • Django

I am trying to deploy Django application with ASGI server, I am following this tutorial(https://www.digitalocean.com/community/tutorials/how-to-set-up-an-asgi-django-app-with-postgres-nginx-and-uvicorn-on-ubuntu-20-04). When I run this command (gunicorn --bind 0.0.0.0:8000 myproject.asgi -w 4 -k uvicorn.workers.UvicornWorker). This is the error

Error: class uri ‘uvicorn.workers.UvicornWorker’ invalid or not found:

[Traceback (most recent call last): File “/home/sreekar/.local/lib/python3.8/site-packages/gunicorn/util.py”, line 99, in load_class mod = importlib.import_module(‘.’.join(components)) File “/usr/lib/python3.8/importlib/init.py”, line 127, in import_module return _bootstrap._gcd_import(name[level:], package, level) File “<frozen importlib._bootstrap>”, line 1014, in _gcd_import File “<frozen importlib._bootstrap>”, line 991, in _find_and_load File “<frozen importlib._bootstrap>”, line 961, in _find_and_load_unlocked File “<frozen importlib._bootstrap>”, line 219, in _call_with_frames_removed File “<frozen importlib._bootstrap>”, line 1014, in _gcd_import File “<frozen importlib._bootstrap>”, line 991, in _find_and_load File “<frozen importlib._bootstrap>”, line 975, in _find_and_load_unlocked File “<frozen importlib._bootstrap>”, line 671, in _load_unlocked File “<frozen importlib._bootstrap_external>”, line 848, in exec_module File “<frozen importlib._bootstrap>”, line 219, in _call_with_frames_removed File “/home/sreekar/.local/lib/python3.8/site-packages/uvicorn/init.py”, line 1, in <module> from uvicorn.config import Config File “/home/sreekar/.local/lib/python3.8/site-packages/uvicorn/config.py”, line 35, in <module> from uvicorn.middleware.proxy_headers import ProxyHeadersMiddleware File “/home/sreekar/.local/lib/python3.8/site-packages/uvicorn/middleware/proxy_headers.py”, line 13, in <module> from asgiref.typing import ( ImportError: cannot import name ‘WebSocketScope’ from ‘asgiref.typing’ (/home/sreekar/.local/lib/python3.8/site-packages/asgiref/typing.py) ]

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Hell,

When you executed the following command, did it complete successfully:

pip install django gunicorn uvicorn psycopg2-binary

Also if you try to run the same command but with uvicorn does it work as normal:

uvicorn myproject.asgi:application --host 0.0.0.0 --port 8080

Best,

Bobby