[Django]-Django: django-taggit usage

You could subclass the model in the external app in one of your own apps, that would probably be a reasonable solution, i.e.

from someapp.models import SomeModel
from taggit.managers import TaggableManager

class SomeModelTagged(SomeModel):
    tags = TaggableManager()

Then in the views where you used SomeModel from the external app you would have to use your new model instead.

You can easily register model from any of your external apps with taggit. Assume the name of the model is Item.

from taggit.managers import TaggableManager
from external_app.models import Item

Item.add_to_class('tags', TaggableManager())

And then you can use taggit in usual way.

i = Item.objects.get(pk=1)
i.tags.add("wassup")
i.tags.all()

You could have pip install the editable version with (-e VCS+REPOS_URL[@REV]#egg=PACKAGE) and add the django-taggable integration yourself.