How can I get the full/absolute URL (e.g. `https://example.com/some/path`) in Django [without the Sites module](https://stackoverflow.com/questions/892997/how-do-i-get-the-server-name-in-django-for-a-complete-url)? That's just silly... I shouldn't need to query my DB to snag the URL!

I want to use it with `reverse()`.