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...    
    'handlers': {
        'null': {
            'level': 'DEBUG',
            'class': 'logging.NullHandler',
        },
        'console': {
            'level': 'INFO',
            'class': 'logging.StreamHandler',
            'formatter': 'default',
        },
        'mail_admins': {
            'level': 'ERROR',
            'filters': ['require_debug_false'],
            'class': 'django.utils.log.AdminEmailHandler',
        }
    },
    'loggers': {
        # Silence SuspiciousOperation.DisallowedHost exception ('Invalid
        # HTTP_HOST' header messages). Set the handler to 'null' so we don't
        # get those annoying emails.
        'django.security.DisallowedHost': {
            'handlers': ['null'],
            'propagate': False,
        },
        'django.request': {
            'handlers': ['mail_admins'],
            'level': 'ERROR',
            'propagate': True,
        },
        '': {
            'handlers': ['console', ],
            'level': 'INFO',
        }
    }
...

LOGGING = {
    'version': 1,
    'disable_existing_loggers': False,
    'handlers': {
        'console': {
            'class': 'logging.StreamHandler',
        },
        'null': {
            'class': 'logging.NullHandler',
        },
        'file': {
            'level': 'DEBUG',
            'class': 'logging.FileHandler',
            'filename': 'debug.log',
        },
    },
    'root': {
        'handlers': ['console'],
        'level': 'WARNING',
    },
    'loggers': {
        # Silence SuspiciousOperation.DisallowedHost
        'django.security.DisallowedHost': {
            'handlers': ['null'],
            'propagate': False,
        },
        '': {
            'handlers': ['console', 'file'],
            'level': 'INFO',
        }
    }
}