Django default settings

From appendix D of the djangobook:

Default Settings

A Django settings file doesn’t have to define any settings if it doesn’t need to. Each setting has a sensible default value. These defaults live in the file django/conf/global_settings.py.
Here’s the algorithm Django uses in compiling settings:

• Load settings from global_settings.py.
• Load settings from the specified settings file, overriding the global settings as necessary.

Note that a settings file should not import from global_settings, because that’s redundant.