channels: runserver raise error.ReactorAlreadyInstalledError("reactor already installed")
Now I add channels to project by installation guide from docs
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OS and runtime environment virtualenv with Python 3.5.3 [GCC 6.3.0 20170118] on linux / debian Jessie
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The versions of Channels, Daphne, Django, Twisted daphne==2.0.0 Django==2.0.2 Twisted==17.9.0
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What you expected to happen vs. what actually happened python src/manage.py runserver 8925 and get raise error.ReactorAlreadyInstalledError(“reactor already installed”)
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How you’re running Channels (runserver? daphne/runworker? Nginx/Apache in front?) on localhost just python src/manage.py runserver 8925
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Console logs and full tracebacks of any errors
$ ls src
apps
project_src
manage.py
$ ls src/project_src/
asgi.py
__init__.py
locale
routing.py
settings
static
templates
urls.py
wsgi.py
ROOT_URLCONF = ‘project_src.urls’ WSGI_APPLICATION = ‘project_src.wsgi.application’ ASGI_APPLICATION = “project_src.routing.application”
(.venv3) berg@berg-dell:/Working-dir/$python src/manage.py runserver 8925
Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x7f4155431e18>
Traceback (most recent call last):
File "/Working-dir/.venv3/lib/python3.5/site-packages/django/utils/autoreload.py", line 225, in wrapper
fn(*args, **kwargs)
File "/Working-dir/.venv3/lib/python3.5/site-packages/django/core/management/commands/runserver.py", line 113, in inner_run
autoreload.raise_last_exception()
File "/Working-dir/.venv3/lib/python3.5/site-packages/django/utils/autoreload.py", line 248, in raise_last_exception
raise _exception[1]
File "/Working-dir/.venv3/lib/python3.5/site-packages/django/core/management/__init__.py", line 327, in execute
autoreload.check_errors(django.setup)()
File "/Working-dir/.venv3/lib/python3.5/site-packages/django/utils/autoreload.py", line 225, in wrapper
fn(*args, **kwargs)
File "/Working-dir/.venv3/lib/python3.5/site-packages/django/__init__.py", line 24, in setup
apps.populate(settings.INSTALLED_APPS)
File "/Working-dir/.venv3/lib/python3.5/site-packages/django/apps/registry.py", line 89, in populate
app_config = AppConfig.create(entry)
File "/Working-dir/.venv3/lib/python3.5/site-packages/django/apps/config.py", line 116, in create
mod = import_module(mod_path)
File "/Working-dir/.venv3/lib/python3.5/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 986, in _gcd_import
File "<frozen importlib._bootstrap>", line 969, in _find_and_load
File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 673, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 673, in exec_module
File "<frozen importlib._bootstrap>", line 222, in _call_with_frames_removed
File "/Working-dir/.venv3/lib/python3.5/site-packages/channels/apps.py", line 6, in <module>
import daphne.server # noqa
File "/Working-dir/.venv3/lib/python3.5/site-packages/daphne/server.py", line 3, in <module>
asyncioreactor.install() # isort:skip
File "/Working-dir/.venv3/lib/python3.5/site-packages/twisted/internet/asyncioreactor.py", line 322, in install
installReactor(reactor)
File "/Working-dir/.venv3/lib/python3.5/site-packages/twisted/internet/main.py", line 32, in installReactor
raise error.ReactorAlreadyInstalledError("reactor already installed")
twisted.internet.error.ReactorAlreadyInstalledError: reactor already installed
About this issue
- Original URL
- State: closed
- Created 6 years ago
- Comments: 23 (15 by maintainers)
?
Oof, if it’s in sentry/raven a lot of people are going to run into this.
the problem was in the configuration sentry logger https://docs.sentry.io/clients/python/integrations/django/
localy I disable
raven
, butsentry
config was stay exists in LOGGING setting after comment this section, all worked