Django consistent custom log format

Question

I'm trying to configure logging for Django so that I had session_key in every line of log (if set). I think I found a way:

LOGGING = {
    'version': 1,
    'disable_existing_loggers': False,
    'formatters': {
        'request': {
            'format': '%(asctime)s %(levelname)-8s [%(sessid)s] %(message)s',
        },
    },
    'filters': {
        'request': {
            '()': 'yellowballs.yblogging.RequestFilter'
        },
    },
    'handlers': {
        'console': {
            'level': 'DEBUG',
            'class': 'logging.StreamHandler',
            'filters': ['request'],
            'formatter': 'request',
        }
    },
    'loggers': {
        'django': {
            'handlers': ['console'],
            'level': 'DEBUG',
            'propagate': True,
        },
    },
}

With the filter being defined like that:

class RequestFilter(logging.Filter):
    def filter(self, record):
        session_store = SessionStore()
        record.sessid = session_store.session_key
        return True

It seems to work well, but Django's logging its messages with it's default format:

2013-03-01 08:44:41,359 WARNING  [None] Not Found: /
[01/Mar/2013 08:44:41] "GET / HTTP/1.1" 200 1962

How do I get the lines [01/Mar/2013 08:44:41] "GET / HTTP/1.1" 200 1962 to display in the same format as the rest of the log?

Is there a simple and pretty way to override the default format for all Django so that the log messages would be consistent across the whole project?

Answer 1

Override the default log format worked for me. It is required to stop the propagation.

LOGGING = {
    'version': 1,
    'disable_existing_loggers': False,
    'formatters': {
        "verbose": {
            "format": (
                "%(levelname)s %(name)s %(message)s [PID:%(process)d:%(threadName)s]"
            )
        },
    },
    'handlers': {
        'console': {
            'class': 'logging.StreamHandler',
            'formatter': 'verbose',
        },
    },
    'loggers': {
        'django.server': {
            'handlers': ['console'],
            'level': 'DEBUG',
            'propagate': False, ### NOTE HERE !!!
        }
    }
}