Custom filters - INSTALLED_APPS requirements

[mhenwood]

Hi

The documentation states that in order for a library of custom tags/filters to be activated, the containing app must be in installed apps. However further to this it fails to note that the actual python package you create must also be listed in there. So for instance if I add a directory called 'templatetags' to an application, then in my installed apps I also need to add the line:
'system.app.templatetags'

[Karen Tracey]

I don't know how you came to this conclusion, but it is not true: you do not have to list the templatetags package as an installed app. When searching for a template tag library, Django attempts to find template tags in a templatetags package under each app listed in INSTALLED_APPS; there is no need to list these explicitly. The documentation is correct as it is.