Django - Login Logout

# views.py

def login(request):
    login = None
    if request.user.is_authenticated(): # check if user has login
        login = True
    else:
        login = False
    return render_to_response('polls/login.html', {'title': 'Login Logout Page', 'login':login})

def loginprocess(request):
    from django.contrib.auth import authenticate, login, logout
    from django.http import HttpResponseRedirect

    username = request.POST['username']
    password = request.POST['password']
    user = authenticate(username=username, password=password)

    if user is not None:
        if user.is_active:
            login(request, user)  # login script
            return HttpResponseRedirect('http://localhost:8000/login')
        else:
            return render_to_response('polls/login.html', {'title': 'Disabled Account'})
    else:
        return render_to_response('polls/login.html', {'title': 'Not Registered Account'})
      

def logout(request):
    from django.contrib.auth import logout
    from django.http import HttpResponseRedirect

    logout(request)
    return HttpResponseRedirect('http://localhost:8000')

Django - Login Logout