wowkin2/django-test-streaming-response

Repo to show how Django StreamingHttpResponse works with async views

django-test-streaming-response's Issues

RuntimeError: cannot schedule new futures after interpreter shutdown

Hi,

If you run a second instance of test_stream.py, you get the following error:

(redacted)\lib\site-packages\django\template\base.py:766: RuntimeWarning: coroutine 'AsyncToSync.main_wrap' was never awaited
  self.literal = float(var)
RuntimeWarning: Enable tracemalloc to get the object allocation traceback
Internal Server Error: /sse_async
Traceback (most recent call last):
  File "(redacted)\lib\site-packages\django\core\handlers\exception.py", line 47, in inner
    response = get_response(request)
  File "(redacted)\lib\site-packages\django\core\handlers\base.py", line 179, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "(redacted)\lib\site-packages\asgiref\sync.py", line 114, in __call__
    self._run_event_loop, loop, awaitable
  File "(redacted)\python37\lib\concurrent\futures\thread.py", line 165, in submit
    raise RuntimeError('cannot schedule new futures after '
RuntimeError: cannot schedule new futures after interpreter shutdown
2020-08-21 09:48:56,674 django.request  ERROR   Internal Server Error: /sse_async
Traceback (most recent call last):
  File "(redacted)\lib\site-packages\django\core\handlers\exception.py", line 47, in inner
    response = get_response(request)
  File "(redacted)\lib\site-packages\django\core\handlers\base.py", line 179, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "(redacted)\lib\site-packages\asgiref\sync.py", line 114, in __call__
    self._run_event_loop, loop, awaitable
  File "(redacted)\python37\lib\concurrent\futures\thread.py", line 165, in submit
    raise RuntimeError('cannot schedule new futures after '
RuntimeError: cannot schedule new futures after interpreter shutdown

Tested with:

• Windows 10
• Python 3.7.7
• Django 3.1
• Daphne 2.5.0
• nest-asyncio 1.4.0
• requests 2.24.0

Best regards,
Benoit

Cannot stop Daphne process

Hi,

As soon as someone gets /sse_async, the Daphne process enters an infinite loop and cannot be stopped with Ctrl-C.

Tested with:

• Windows 10
• Python 3.7.7
• Django 3.1
• Daphne 2.5.0
• nest-asyncio 1.4.0
• requests 2.24.0

Best regards,
Benoit

test_stream.py doesn't receive anything

Hi,

When I follow the instructions on README, here is what happens:

$ python test_stream.py
2020-08-21 09:36:51,750 __main__        INFO    Started downloading content

On the server-side, however, I can see:

2020-08-21 09:36:53,777 INFO     Generated message for iteration: iteration 000000
2020-08-21 09:36:54,778 INFO     Generated message for iteration: iteration 000001

Tested with:

• Windows 10
• Python 3.7.7
• Django 3.1
• Daphne 2.5.0
• nest-asyncio 1.4.0
• requests 2.24.0

Best regards,
Benoit