Views

def edit(request, List_id ):
    item = get_object_or_404(List, pk=List_id)
    if reques.method == 'POST':
        form = ListForm(request.POST, instance=item)
        form.save()
        return redirect('home')

    else:
        form =ListForm(instance=item)
        return render(request, 'edit.html', {'form':form})