How to force a user logout in Django?

Question

In my Django app under certain conditions I want to be able to force users to log out by a username. Not necessarily the current user who is logged in, but another user. So,

Answer 1

Even I faced this issue. Few spammers from India keep posting about those Baba and Molvi for love solutions.

What I did is at the time of posting just inserted this code:

if request.user.is_active==False:
            return HttpResponse('You are banned on the site for spaming.')