id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
24783	Template libraries and built-ins should be registered through the engine	Preston Timmons	Preston Timmons <prestontimmons@…>	"Django template libraries and builtins depend on global variables in `django.template.base`. This is messy, but also restrictive. The only way to specify template tag modules is by adding a package in `INSTALLED_APPS` that has a `templatetags` directory. Modifying `builtins` is a hack. And the `LoadNode` has a hard dependency on `django.apps`. Preferably, libraries and builtins should be specified and live on the `Engine` instance instead.

I think this can be cleaned up by having libraries and builtins configured via the `DjangoTemplates` backend. This would build on Mark Tamlyn's idea in #12772:

{{{
TEMPLATES = [
    {
        ...
        'OPTIONS': {
            'libraries': {
                'admin.urls': 'django.contrib.admin.templatetags.admin_urls',                  
                'my_tags': 'path.to.some.module',
            },
            'builtins': {
                'path.to.builtins_module',
            }
        },
    },
]
}}}"	New feature	closed	Template system	dev	Normal	fixed		andrei.avk@…	Ready for checkin	1	0	0	0	0	0