Cannot resolve 'django.utils.log.NullHandler' in Django 1.9+

Question

After upgrading to Django 1.9 or 1.10, LOGGING configurations with django.utils.log.NullHandler throws an exception saying that the NullHandler is not resolvable:

Unable to configure handler 'null': Cannot resolve 'django.utils.log.NullHandler': No module named NullHandler

This can also happen if copy/pasting commonly suggested log configurations into new projects based upon Django 1.9 or 1.10.

How do I resolve this?

Answer 1

django.utils.log.NullHandler is actually alias to logging.NullHandler.

Looks like it was removed in 1.9.

Just check your settings (and any other code) and replace django.utils.log.NullHandler with logging.NullHandler.