Django Debug Toolbar messing with error console logging under runserver

Hello. I’ve noticed that when I have Django Toolbar enabled I’m not getting error messages on the console from runserver under my development machine. Is this some kind of incompatibility between the two? (I’m creating this task because recently there was some work regarding logging here, but please let me know if this is a problem with django_toolbar package)

I was able to reproduce under a clean project, with only channels and debug_toolbar installed.

I’ve made a video to better demonstrate this. I intentionally put a non defined variable on the connect() method just to crash: https://streamable.com/veo2s

Here are my packages:

channels==2.1.5
daphne==2.2.3
Django==2.1.3

And my test project (a basic Django startapp): test.zip

[andrewgodwin]

OK, I’m afraid I think this might be a django-debug-toolbar issue, not a Channels issue, sorry! If you can find something in Channels we can fix that would re-enable it then let me know, but it would appear to be on the other end - I suspect the disable_existing_loggers on the recent code snippet is what is “fixing” it there.

[bluesurfer]

This is related with my issue #1177. I was getting so frustrated over this. Finally, I solved it by using the following LOGGING configuration:

LOGGING = {
    'version': 1,
    'disable_existing_loggers': True,
    'handlers': {
        'console': {
            'level': 'INFO',
            'class': 'logging.StreamHandler',
        }
    },
    'loggers': {
        'django': {},
    },
    'root': {
        'handlers': ['console', ],
        'level': 'INFO'
    },
}

But still I do not know exactly why it works 😃

Source: https://medium.com/@saulshanabrook/simple-django-logging-ffa74c9ca0fc