websockets, запущенный из-за ошибки URL-адресов django: RuntimeError: В потоке 'Dummy-1' нет текущего цикла событий

Question

Я пытаюсь запустить скрипт websocket из django

async def get_cells(websocket, path):
  async for message in websocket:

    message = json.loads(message)
    ...
            if percentage % 5 == 0:
                await websocket.send(json.dumps({'complete': False, 'status': percentage}))
    ...

        await websocket.send(json.dumps({'complete': True, 'filename': filename}))

asyncio.get_event_loop (). Run_until_complete ( websockets.serve (get_cells, 'localhost', 8765))

asyncio.get_event_loop (). Run_forever ()

Я сохранил как path.py и импортировал в URL-адресах

import path

Выдает эту ошибку

^C(pixelart) sam@sam-Lenovo-G51-35:~/code/pixelart$ python manage.py runserver
Performing system checks...

Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x7f38e007f1e0>
Traceback (most recent call last):
File "/home/sam/code/envs/pixelart/lib/python3.6/site-packages/django/utils/autoreload.py", line 225, in wrapper
    fn(*args, **kwargs)
File "/home/sam/code/envs/pixelart/lib/python3.6/site-packages/django/core/management/commands/runserver.py",line 117, in inner_run
    self.check(display_num_errors=True)
File "/home/sam/code/envs/pixelart/lib/python3.6/site-packages/django/core/management/base.py", line 379, in check
    include_deployment_checks=include_deployment_checks,
File "/home/sam/code/envs/pixelart/lib/python3.6/site-packages/django/core/management/base.py", line 366, in _run_checks
    return checks.run_checks(**kwargs)
File "/home/sam/code/envs/pixelart/lib/python3.6/site-packages/django/core/checks/registry.py", line 71, in run_checks
    new_errors = check(app_configs=app_configs)
File "/home/sam/code/envs/pixelart/lib/python3.6/site-packages/django/core/checks/urls.py", line 13, in check_url_config
    return check_resolver(resolver)
File "/home/sam/code/envs/pixelart/lib/python3.6/site-packages/django/core/checks/urls.py", line 23, in check_resolver
    return check_method()
File "/home/sam/code/envs/pixelart/lib/python3.6/site-packages/django/urls/resolvers.py", line 396, in check
    for pattern in self.url_patterns:
File "/home/sam/code/envs/pixelart/lib/python3.6/site-packages/django/utils/functional.py", line 37, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
File "/home/sam/code/envs/pixelart/lib/python3.6/site-packages/django/urls/resolvers.py", line 533, in url_patterns
    patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
File "/home/sam/code/envs/pixelart/lib/python3.6/site-packages/django/utils/functional.py", line 37, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
File "/home/sam/code/envs/pixelart/lib/python3.6/site-packages/django/urls/resolvers.py", line 526, in urlconf_module
    return import_module(self.urlconf_name)
File "/home/sam/code/envs/pixelart/lib/python3.6/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 994, in _gcd_import
File "<frozen importlib._bootstrap>", line 971, in _find_and_load
File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 678, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/home/sam/code/pixelart/pixelart/urls.py", line 7, in <module>
    import path
File "/home/sam/code/pixelart/path.py", line 55, in <module>
    asyncio.get_event_loop().run_until_complete(
File "/usr/lib/python3.6/asyncio/events.py", line 694, in get_event_loop
    return get_event_loop_policy().get_event_loop()
File "/usr/lib/python3.6/asyncio/events.py", line 602, in get_event_loop
    % threading.current_thread().name)
RuntimeError: There is no current event loop in thread 'Dummy-1'.

Предложение

loop = asyncio.get_event_loop().run_until_complete(
    websockets.serve(get_cells, 'localhost', 8765))

asyncio.get_event_loop(loop).run_forever()

это предложение возвращает ту же ошибку.

Answer 1

Попробуйте и сохраните

asyncio.get_event_loop ()

в переменной, как

var = asyncio.get_event_loop ()

и используйте

asyncio.set_event_loop (вар)

Answer 2

Возможно, вы указали путь импорта URL-адреса в зависимости от того, где находится файл path.py.

Вы должны указать путь в соответствии с расположением файла manage.py.

Надеюсь, это поможет!