Sesiones

INSTALLED_APPS = [
    ...
    'django.contrib.sessions',
    ....

MIDDLEWARE = [
    ...
    'django.contrib.sessions.middleware.SessionMiddleware',
    ....

def index(request):
    ...
    
    # Number of visits to this view, as counted in the session variable.
    num_visits = request.session.get('num_visits', 0)
    request.session['num_visits'] = num_visits + 1

    context = {
        'num_visits': num_visits,
    }

    # Render the HTML template index.html with the data in the context variable.
    return render(request, 'index.html', context=context)