logging from command line

[Brian May <brian@…>]

The documentation says "Logging is configured immediately after settings have been loaded. Since the loading of settings is one of the first things that Django does, you can be certain that loggers are always ready for use in your project code."

I assume this to be correct for web requests. It also seems to be correct for the "manage.py shell" interactive shell. It does not seem to work for command line applications however. For example, if I try to run the following code:

#!/usr/bin/env python
from django.core.management import setup_environ
from kgadmin.conf import settings
setup_environ(settings)

import logging
logger = logging.getLogger(__name__)
logger.debug(u"something weent debug")
logger.info(u"something weent info")
logger.error(u"something weent error")

then logging is not initialized and I get the following message:

No handlers could be found for logger "__main__"

To fix this, I have to insert code like the following to force the settings to become initialized:

import django.conf
django.conf.settings.LOGGING

I would have hoped that setup_environ(...) would do all of this, but apparently not.

This is with python-django 1.3-2ubuntu1.1 running on Ubuntu 11.10

Brian May

[Jannis Leidel]

I believe the docs try to say "Logging is configured immediately after settings have been loaded *by importing them*.." or something like that. In other words, this seems like a documentation issue.

[Brian May <brian@…>]

In case it is not clear, should add that the import statement by itself was not sufficient. I had to access the settings in order to force them to load. As shown in my code example. Not sure if this is still the case now.

[vanessagomes]

Here is a suggestion for the documentation.

[Claude Paroz]

I would have simply replaced the sentence:
Logging is configured immediately after settings have been loaded.

By:
Logging is configured as soon as settings have been loaded (either manually or when at least one setting is accessed).

With a link to ​https://docs.djangoproject.com/en/dev/topics/settings/#django.conf.settings.configure on the word "manually".

[vanessagomes]

claudep,

do you think that the note is unecessary?

[vanessagomes]

I will adapt for your suggestion. It is cleaner.

[vanessagomes]

Here is the patch with the suggestion.

[Tim Graham <timograham@…>]

In [cb38fd9632f314bd78324083005dc8df55200390]:

Fixed #17680 - Clarified when logging is configured.

[Tim Graham <timograham@…>]

In [3264894ee02f7099272619fa4f6072d4d2e95eb6]:

[1.4.X] Fixed #17680 - Clarified when logging is configured.

Backport of cb38fd9632 from master