Python/django root logger level

In my django project I have following LOGGING config:

LOGGING = { 'version': 1, 'disable_existing_loggers': True, 'formatters': { 'verbose': { 'format': '%(name)s %(levelname)s %(asctime)s %(module)s %(process)d %(thread)d %(message)s' }, 'simple': { 'format': '%(levelname)s %(message)s' }, }, 'handlers': { 'null': { 'level': 'DEBUG', 'class':'django.utils.log.NullHandler', }, 'sentry': { 'level': 'DEBUG', 'class': 'sentry.client.handlers.SentryHandler', 'formatter': 'verbose' }, 'console': { 'level': 'DEBUG', 'class': 'logging.StreamHandler', 'formatter': 'verbose' } }, 'loggers': { 'django.db.backends': { 'handlers': ['console'], 'level': 'INFO', 'propagate': False, }, '': { 'level': 'ERROR', 'handlers': ['console'], }, }, } 

When running manage.py migrate I still have a lot of debug stuff in console, e.g:

DEBUG south 2011-08-08 11:22:23,847 generic 19539 140735078710464 south execute "..." 

I'm expecting only error messages in console as I set root logger level to ERROR. What am I doing wrong?

UPDATE

Looks like problem is in south.logger module:

import sys import logging from django.conf import settings # Create a dummy handler to use for now. class NullHandler(logging.Handler): def emit(self, record): pass _logger = logging.getLogger("south") _logger.addHandler(NullHandler()) _logger.setLevel(logging.DEBUG) 

After removing _logger.setLevel(logging.DEBUG) logging works as expected.

Can someone explain me such weird behavior?