Refatoração do template tag de paginação (somente o metodo render)

lala.py

def render(self, context):
        object_record = self.object_record.resolve(context)

        if object_record.paginator.count > settings.PAGINATION__ITEMS_PER_PAGE:
            class_li_previous = 'disabled' if not object_record.has_previous() else ''
            class_li_next = 'disabled' if not object_record.has_next() else ''
            html_pages = []

            for page in object_record.paginator.page_range:
                class_li_page = 'active' if object_record.number == page else ''
                html_pages.append(u'<li class="{0}"><a href="?page={1}">{1}</a></li>'.format(class_li_page, page))

            html_snippet = u'''
                <div class="pagination">
                  <ul>
                    <li class="prev {0}"><a href="?page={1}">&larr; {2}</a></li>
                    {3}
                    <li class="next {4}"><a href="?page={5}">{6} &rarr;</a></li>
                  </ul>
                </div>
            '''.format(
                    class_li_previous,
                    object_record.previous_page_number(),
                    _('Previous'),
                    ''.join(html_pages),
                    class_li_next,
                    object_record.next_page_number(),
                    _('Next')
                )
            return html_snippet
        else:
            return ''