stack trace from manage.py runserver not appearing

Question

Django's runserver command doesn't output a stack trace when I append --traceback --verbosity 2:

➫ python manage.py runserver --traceback --verbosity 2
Validating models...

0 errors found
July 24, 2013 - 11:45:12
Django version 1.5.1, using settings 'base.settings'
Development server is running at http://127.0.0.1:8000/
Quit the server with CONTROL-C.
[24/Jul/2013 11:45:27] "POST /login/get_associations/ HTTP/1.0" 500 13220

Are there other command line switches or logging configuration I can add to get runserver to print a stack trace when there is a 500?

Answer 1

Agreed that this is convenient, especially for MVVM-centric app development (e.g. Angular/Ember front-end). Also this is helpful when others are testing out the front-end.

As you mentioned, this isn't provided by DEBUG=True. You can add a stacktrace when running ./manage.py runserver by adding the following to the settings.py file:

LOGGING = {
    'version': 1,
    'handlers': {
        'console': {
            'level': 'DEBUG',
            'class': 'logging.StreamHandler',
        },
    },
    'loggers': {
        'django.request': {
            'handlers': ['console'],
            'propagate': True,
            'level': 'DEBUG',
        },
    },
}

This syntax comes from the Django documentation Configuring Logging and can be further modified to increase or decrease the amount of console-logging.

Also note that 5XX responses are raised as ERROR messages and 4XX responses are raised as WARNING messages.