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Published 20 hours ago • verified publisher icon django

Segfault when running ChannelsLiveServerTestCase

Open kiwec opened this issue 5 years ago • 5 comments

I am using channels 2.3.1 with daphne 2.4.0 - which I can confirm fixed https://github.com/django/channels/issues/962. Unfortunately, while it doesn't hang anymore, it segfaults when the server connects to a PostgreSQL server with psycopg2 (built on OSX, not using the provided binaries).

It only happens specifically on OSX and when running a ChannelsLiveServerTestCase - not on debian or when using runserver.

I'm not able to provide logs as of now, but if you need it I can provide them tomorrow, with a minimal project to try and reproduce this issue.

kiwec avatar Dec 02 '19 17:12 kiwec

Minimal reproduce, and actual error would be handy. Thanks.

carltongibson avatar Dec 02 '19 17:12 carltongibson

Okay, with a minimal project the traceback is way more readable. It seems you can access static files just fine, but it crashes when accessing the database. Since the daphne server crashes, selenium fails to load the page and the test fails.

Project : https://github.com/kiwec/channels-segfault

Crash log :

============================= test session starts ==============================
platform darwin -- Python 3.7.3, pytest-5.3.1, py-1.8.0, pluggy-0.13.1
rootdir: /Users/clementwolf/Documents/channels-segfault
collected 2 items

channelsegfault/test.py .Fatal Python error: Segmentation fault

Current thread 0x00007000015db000 (most recent call first):
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/psycopg2/__init__.py", line 126 in connect
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/django/db/backends/postgresql/base.py", line 178 in get_new_connection
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/django/db/backends/base/base.py", line 195 in connect
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/django/db/backends/base/base.py", line 217 in ensure_connection
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/django/db/backends/base/base.py", line 233 in _cursor
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/django/db/backends/base/base.py", line 256 in cursor
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/django/db/models/sql/compiler.py", line 1366 in execute_sql
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/django/db/models/query.py", line 1186 in _insert
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/django/db/models/manager.py", line 82 in manager_method
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/django/db/models/base.py", line 908 in _do_insert
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/django/db/models/base.py", line 870 in _save_table
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/django/db/models/base.py", line 779 in save_base
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/django/db/models/base.py", line 741 in save
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/django/db/models/query.py", line 422 in create
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/django/db/models/manager.py", line 82 in manager_method
  File "/Users/clementwolf/Documents/channels-segfault/channelsegfault/main.py", line 21 in crash_my_shit_up_view
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/django/core/handlers/base.py", line 113 in _get_response
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/django/core/handlers/exception.py", line 34 in inner
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/django/core/handlers/base.py", line 75 in get_response
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/channels/http.py", line 244 in handle
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/asgiref/sync.py", line 277 in thread_handler
  File "/Users/clementwolf/.pyenv/versions/3.7.3/lib/python3.7/concurrent/futures/thread.py", line 57 in run
  File "/Users/clementwolf/.pyenv/versions/3.7.3/lib/python3.7/concurrent/futures/thread.py", line 80 in _worker
  File "/Users/clementwolf/.pyenv/versions/3.7.3/lib/python3.7/threading.py", line 865 in run
  File "/Users/clementwolf/.pyenv/versions/3.7.3/lib/python3.7/threading.py", line 917 in _bootstrap_inner
  File "/Users/clementwolf/.pyenv/versions/3.7.3/lib/python3.7/threading.py", line 885 in _bootstrap

Thread 0x0000000109aed5c0 (most recent call first):
  File "/Users/clementwolf/.pyenv/versions/3.7.3/lib/python3.7/selectors.py", line 558 in select
  File "/Users/clementwolf/.pyenv/versions/3.7.3/lib/python3.7/asyncio/base_events.py", line 1739 in _run_once
  File "/Users/clementwolf/.pyenv/versions/3.7.3/lib/python3.7/asyncio/base_events.py", line 539 in run_forever
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/twisted/internet/asyncioreactor.py", line 267 in run
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/daphne/server.py", line 140 in run
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/daphne/testing.py", line 144 in run
  File "/Users/clementwolf/.pyenv/versions/3.7.3/lib/python3.7/multiprocessing/process.py", line 297 in _bootstrap
  File "/Users/clementwolf/.pyenv/versions/3.7.3/lib/python3.7/multiprocessing/popen_fork.py", line 74 in _launch
  File "/Users/clementwolf/.pyenv/versions/3.7.3/lib/python3.7/multiprocessing/popen_fork.py", line 20 in __init__
  File "/Users/clementwolf/.pyenv/versions/3.7.3/lib/python3.7/multiprocessing/context.py", line 277 in _Popen
  File "/Users/clementwolf/.pyenv/versions/3.7.3/lib/python3.7/multiprocessing/context.py", line 223 in _Popen
  File "/Users/clementwolf/.pyenv/versions/3.7.3/lib/python3.7/multiprocessing/process.py", line 112 in start
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/channels/testing/live.py", line 52 in _pre_setup
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/django/test/testcases.py", line 267 in __call__
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/_pytest/unittest.py", line 207 in runtest
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/_pytest/runner.py", line 131 in pytest_runtest_call
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/pluggy/callers.py", line 187 in _multicall
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/pluggy/manager.py", line 87 in <lambda>
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/pluggy/manager.py", line 93 in _hookexec
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/pluggy/hooks.py", line 286 in __call__
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/_pytest/runner.py", line 207 in <lambda>
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/_pytest/runner.py", line 234 in from_call
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/_pytest/runner.py", line 207 in call_runtest_hook
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/_pytest/runner.py", line 182 in call_and_report
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/_pytest/runner.py", line 96 in runtestprotocol
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/_pytest/runner.py", line 81 in pytest_runtest_protocol
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/pluggy/callers.py", line 187 in _multicall
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/pluggy/manager.py", line 87 in <lambda>
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/pluggy/manager.py", line 93 in _hookexec
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/pluggy/hooks.py", line 286 in __call__
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/_pytest/main.py", line 270 in pytest_runtestloop
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/pluggy/callers.py", line 187 in _multicall
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/pluggy/manager.py", line 87 in <lambda>
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/pluggy/manager.py", line 93 in _hookexec
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/pluggy/hooks.py", line 286 in __call__
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/_pytest/main.py", line 246 in _main
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/_pytest/main.py", line 196 in wrap_session
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/_pytest/main.py", line 239 in pytest_cmdline_main
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/pluggy/callers.py", line 187 in _multicall
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/pluggy/manager.py", line 87 in <lambda>
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/pluggy/manager.py", line 93 in _hookexec
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/pluggy/hooks.py", line 286 in __call__
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/_pytest/config/__init__.py", line 92 in main
  File "/Users/clementwolf/Documents/channels-segfault/channelsegfault/main.py", line 17 in run_tests
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/django/core/management/commands/test.py", line 53 in handle
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/django/core/management/base.py", line 364 in execute
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/django/core/management/base.py", line 323 in run_from_argv
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/django/core/management/commands/test.py", line 23 in run_from_argv
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/django/core/management/__init__.py", line 375 in execute
  File "/Users/clementwolf/Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/django/core/management/__init__.py", line 381 in execute_from_command_line
  File "manage.py", line 17 in main
  File "manage.py", line 21 in <module>
F                                               [100%]

=================================== FAILURES ===================================
________________________ AmazingTestCase.test_the_stuff ________________________

self = <channelsegfault.test.AmazingTestCase testMethod=test_the_stuff>

    def test_the_stuff(self):
        DummyModel.objects.create(content="no crash here")
        self.browser.implicitly_wait(10)
>       self.browser.get(self.live_server_url)

channelsegfault/test.py:33: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
../../Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/selenium/webdriver/remote/webdriver.py:333: in get
    self.execute(Command.GET, {'url': url})
../../Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/selenium/webdriver/remote/webdriver.py:321: in execute
    self.error_handler.check_response(response)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <selenium.webdriver.remote.errorhandler.ErrorHandler object at 0x1097fcc50>
response = {'status': 500, 'value': '{"value":{"error":"unknown error","message":"Reached error page: about:neterror?e=dnsNotFoun...ate@chrome://marionette/content/listener.js:297:13\\nhandleEvent@chrome://marionette/content/listener.js:263:14\\n"}}'}

    def check_response(self, response):
        """
        Checks that a JSON response from the WebDriver does not have an error.
    
        :Args:
         - response - The JSON response from the WebDriver server as a dictionary
           object.
    
        :Raises: If the response contains an error message.
        """
        status = response.get('status', None)
        if status is None or status == ErrorCode.SUCCESS:
            return
        value = None
        message = response.get("message", "")
        screen = response.get("screen", "")
        stacktrace = None
        if isinstance(status, int):
            value_json = response.get('value', None)
            if value_json and isinstance(value_json, basestring):
                import json
                try:
                    value = json.loads(value_json)
                    if len(value.keys()) == 1:
                        value = value['value']
                    status = value.get('error', None)
                    if status is None:
                        status = value["status"]
                        message = value["value"]
                        if not isinstance(message, basestring):
                            value = message
                            message = message.get('message')
                    else:
                        message = value.get('message', None)
                except ValueError:
                    pass
    
        exception_class = ErrorInResponseException
        if status in ErrorCode.NO_SUCH_ELEMENT:
            exception_class = NoSuchElementException
        elif status in ErrorCode.NO_SUCH_FRAME:
            exception_class = NoSuchFrameException
        elif status in ErrorCode.NO_SUCH_WINDOW:
            exception_class = NoSuchWindowException
        elif status in ErrorCode.STALE_ELEMENT_REFERENCE:
            exception_class = StaleElementReferenceException
        elif status in ErrorCode.ELEMENT_NOT_VISIBLE:
            exception_class = ElementNotVisibleException
        elif status in ErrorCode.INVALID_ELEMENT_STATE:
            exception_class = InvalidElementStateException
        elif status in ErrorCode.INVALID_SELECTOR \
                or status in ErrorCode.INVALID_XPATH_SELECTOR \
                or status in ErrorCode.INVALID_XPATH_SELECTOR_RETURN_TYPER:
            exception_class = InvalidSelectorException
        elif status in ErrorCode.ELEMENT_IS_NOT_SELECTABLE:
            exception_class = ElementNotSelectableException
        elif status in ErrorCode.ELEMENT_NOT_INTERACTABLE:
            exception_class = ElementNotInteractableException
        elif status in ErrorCode.INVALID_COOKIE_DOMAIN:
            exception_class = InvalidCookieDomainException
        elif status in ErrorCode.UNABLE_TO_SET_COOKIE:
            exception_class = UnableToSetCookieException
        elif status in ErrorCode.TIMEOUT:
            exception_class = TimeoutException
        elif status in ErrorCode.SCRIPT_TIMEOUT:
            exception_class = TimeoutException
        elif status in ErrorCode.UNKNOWN_ERROR:
            exception_class = WebDriverException
        elif status in ErrorCode.UNEXPECTED_ALERT_OPEN:
            exception_class = UnexpectedAlertPresentException
        elif status in ErrorCode.NO_ALERT_OPEN:
            exception_class = NoAlertPresentException
        elif status in ErrorCode.IME_NOT_AVAILABLE:
            exception_class = ImeNotAvailableException
        elif status in ErrorCode.IME_ENGINE_ACTIVATION_FAILED:
            exception_class = ImeActivationFailedException
        elif status in ErrorCode.MOVE_TARGET_OUT_OF_BOUNDS:
            exception_class = MoveTargetOutOfBoundsException
        elif status in ErrorCode.JAVASCRIPT_ERROR:
            exception_class = JavascriptException
        elif status in ErrorCode.SESSION_NOT_CREATED:
            exception_class = SessionNotCreatedException
        elif status in ErrorCode.INVALID_ARGUMENT:
            exception_class = InvalidArgumentException
        elif status in ErrorCode.NO_SUCH_COOKIE:
            exception_class = NoSuchCookieException
        elif status in ErrorCode.UNABLE_TO_CAPTURE_SCREEN:
            exception_class = ScreenshotException
        elif status in ErrorCode.ELEMENT_CLICK_INTERCEPTED:
            exception_class = ElementClickInterceptedException
        elif status in ErrorCode.INSECURE_CERTIFICATE:
            exception_class = InsecureCertificateException
        elif status in ErrorCode.INVALID_COORDINATES:
            exception_class = InvalidCoordinatesException
        elif status in ErrorCode.INVALID_SESSION_ID:
            exception_class = InvalidSessionIdException
        elif status in ErrorCode.UNKNOWN_METHOD:
            exception_class = UnknownMethodException
        else:
            exception_class = WebDriverException
        if value == '' or value is None:
            value = response['value']
        if isinstance(value, basestring):
            if exception_class == ErrorInResponseException:
                raise exception_class(response, value)
            raise exception_class(value)
        if message == "" and 'message' in value:
            message = value['message']
    
        screen = None
        if 'screen' in value:
            screen = value['screen']
    
        stacktrace = None
        if 'stackTrace' in value and value['stackTrace']:
            stacktrace = []
            try:
                for frame in value['stackTrace']:
                    line = self._value_or_default(frame, 'lineNumber', '')
                    file = self._value_or_default(frame, 'fileName', '<anonymous>')
                    if line:
                        file = "%s:%s" % (file, line)
                    meth = self._value_or_default(frame, 'methodName', '<anonymous>')
                    if 'className' in frame:
                        meth = "%s.%s" % (frame['className'], meth)
                    msg = "    at %s (%s)"
                    msg = msg % (meth, file)
                    stacktrace.append(msg)
            except TypeError:
                pass
        if exception_class == ErrorInResponseException:
            raise exception_class(response, message)
        elif exception_class == UnexpectedAlertPresentException:
            alert_text = None
            if 'data' in value:
                alert_text = value['data'].get('text')
            elif 'alert' in value:
                alert_text = value['alert'].get('text')
            raise exception_class(message, screen, stacktrace, alert_text)
>       raise exception_class(message, screen, stacktrace)
E       selenium.common.exceptions.WebDriverException: Message: Reached error page: about:neterror?e=dnsNotFound&u=http%3A//localhost%3A49239/&c=UTF-8&f=regular&d=Impossible%20de%20se%20connecter%20au%20serveur%20%C3%A0%20l%E2%80%99adresse%20localhost.

../../Library/Caches/pypoetry/virtualenvs/channels-segfault-py3.7/lib/python3.7/site-packages/selenium/webdriver/remote/errorhandler.py:242: WebDriverException
========================= 1 failed, 1 passed in 8.94s ==========================

kiwec avatar Dec 03 '19 15:12 kiwec

~Changed pytest to unittest and just worked fine. I think this issue has something to do with Django + multiprocessing + pytest combination, not Channels or Daphne itself.~ Sorry, my mistake. The problem still exists with unittest.

joonhyungshin avatar Dec 14 '19 10:12 joonhyungshin

After several experiments, it turned out that this is a problem of psycopg2 + multiprocessing. The following script also crashes with SIGSEGV in MacOS.

import psycopg2
import multiprocessing

def psycopg2_connect():
    psycopg2.connect(host='localhost', port='5432', database='postgres')
    print('Done') # This is not printed because the process crashes

c = psycopg2.connect(host='localhost', port='5432', database='postgres')
c.close()
p = multiprocessing.Process(target=psycopg2_connect)
p.start()
p.join()

The version of psycopg2 is 2.8.4.

This seems to be related to psycopg/psycopg2#691. I have no idea what directly caused the problem nor how to fix it, but i believe that there is nothing Channels or Daphne can do. A workaround can be using a different database or just stick to Linux. FYI @kiwec @carltongibson

joonhyungshin avatar Dec 14 '19 17:12 joonhyungshin

@joonhyungshin Can you try my pull requests for Daphne and Channels and see if that fixes your problem?

Daphne: https://github.com/django/daphne/pull/284 Channels: https://github.com/django/channels/pull/1372

It uses threads instead of separate processes.

If it does fix your problem, then maybe Daphne and Channels can accept it to prevent issues like this happening for other libraries, since Python Processes and third party libraries don't always mesh well together.

shjohnson-pi avatar Feb 18 '20 15:02 shjohnson-pi

Closing based on https://github.com/django/channels/issues/1387#issuecomment-565734357

Ref more general issues here, I've merged #1906 to enforce fork for the moment, which at least lets test cases work on macOS. (We'll need a fuller solution long-term, and for Windows support.)

Note pre-4.0 this requires the development version of daphne as well. See #1898

carltongibson avatar Aug 21 '22 09:08 carltongibson