Is there a quick way to tell if an app is in Django's INSTALLED_APPS?

Question

I'm writing a quick Django module and want to check for another module. Is there's a shortcut to check if another module is in the INSTALLED_APPS list in Django's settings?

Answer 1

from settings import INSTALLED_APPS
if 'appname' in INSTALLED_APPS:
    print 'we have app'

And this way is somewhat how Django itself does. Also check the load_app method on the linked page.

Answer 2

Django contains a registry of installed applications that you can use for this purpose:

>>> from django.apps import apps
>>> apps.is_installed("django.contrib.admin")
True