I have a nested loop that I would like to break out of. After searching this site it seems the best practice is to put the nested loop into a function and use return to break out of it. Is it acceptable to have functions inside the views.py file that are not a view? What is the best practice for the location of this function? Here's the example code from inside my views.py

@login_required
def save_bookmark(request):
    if request.method == 'POST':
        form = BookmarkSaveForm(request.POST)
        if form.is_valid():
            bookmark_list = Bookmark.objects.all()
            for bookmark in bookmark_list:
                for link in bookmark.link_set.all():
                    if link.url == form.cleaned_data['url']:
                        # Do something.
                        break
                    else:
                        # Do something else.
        else:
            form = BookmarkSaveForm()
        return render_to_response('save_bookmark_form.html', {'form': form})