Logging INFO to Django Server's STDOUT

django, python

Solution

`__name__` is the name of the python module that contains the logger. So, to make your logger work, you should rename your logger in settings.py from `django` to name of the module from where you calling `getLogger`. Second option - just change `__name__` to `django`:

logger = logging.getLogger('django')

late update to your comment:

Yeah, but I still want all of my loggers namespaced. I'm just wondering if there's a way to set a "base line" configuration for all modules and have everything automatically inherit from that. Using 'django' for everything is out of the question, totally unmodular.

You just need to add 'your_project_name' logger to loggers list. The dotted paths of logger names define a hierarchy. For example, if you need, let's say, file log for 'some_application' in your project and all other applications log messages (`INFO` level) should going to console only, then your loggers list can look like this:

'loggers': {
    'django.request': {
        'handlers': ['mail_admins'],
        'level': 'ERROR',
        'propagate': True,
    },
    'django': {
        'handlers': ['console'],
        'propagate': True,
        'level': 'INFO'
    },

    #...

    'your_project_name': {
        'handlers': ['console'],
        'propagate': False,
        'level': 'INFO',
    },
    'your_project_name.some_application': {
        'handlers': ['file'],
        'propagate': True, # propagate here to root project level
                           # logger to also print this message to console
        'level': 'DEBUG',
    },

    #...

    'your_project_name.some_application.models': {
        'handlers': ['mail_admins'], #, 'console']
        'propagate': True, # if file and console needed,
                           # but 'console' can be added to handlers
                           # and propagate set to False
                           # to avoid this log messages in file...
        'level': 'ERROR',
    },

}

Calling `logger = logging.getLogger(__name__)` in some_application will get you logger, that should log all messages to file and also propagate to root project logger to display them on console. All other applications modules `__name__` will match only your root project logger: `your_project_name` that will print messages on console only. If needed you can, add one more level to tree, for example your_project_name.some_application.models that can use `mail_admins` handler to report some db problems to admins. You can change logger levels on different loggers in hierarchy of course!

Problem

I'm setting up logging on a Django server. I want to be able to log arbitrary INFO-level strings to the server's standard out, so it appears alongside the standard Django messages that look like this: ``` [24/Feb/2014 20:37:03] "POST /v1/events/ HTTP/1.1" 201 0 ``` Here is my current logging configuration: ``` LOGGING = { 'version': 1, 'disable_existing_loggers': False, 'filters': { 'require_debug_false': { '()': 'django.utils.log.RequireDebugFalse' } }, 'handlers': { 'mail_admins': { 'level': 'ERROR', 'filters': ['require_debug_false'], 'class': 'django.utils.log.AdminEmailHandler' }, #'file': { #'level': 'DEBUG', #'class': 'logging.FileHandler', #'filename': '/tmp/djdebug.log', #}, 'console': { 'level': 'INFO', 'class': 'logging.StreamHandler', 'stream': sys.stdout } }, 'loggers': { 'django.request': { 'handlers': ['mail_admins'], 'level': 'ERROR', 'propagate': True, }, 'django': { 'handlers': ['console'], 'propogate': True, 'level': 'INFO' } #'django': { #'handlers': ['file'], #'propagate': True, #'level': 'DEBUG', #}, } } ``` In a models.py file in an app for my django project, I do the following at the top: ``` import logging logger = logging.getLogger(__name__) ``` Then, within some code, I write run the following: ``` logger.info('triggering notifications') ``` The code hits the point where this is called, but nothing is written to the server's stdout. Am I missing something? I'm running this locally, and DEBUG = True, but I'd like the INFO messages to be displayed even in production with DEBUG = False.

Original source