views.py

def rep_class(request):
    dateclasses = DateClass.objects.order_by('date_hour')
    start_date = datetime.today()
    end_date = datetime.today() + timedelta(days=15) 
    dateclasses = dateclasses.filter(
        date_hour__range=[start_date, end_date]
    )
    return render(request, 'report/class.html', {
        'dateclasses': dateclasses
    })