Anonymous

    <div id="urls" nevow:data="urls" nevow:render="sequence">      <div nevow:pattern="item" nevow:render="url">	link:     <nevow:slot name="link" />	keywords: <nevow:slot name="keywords" />	author:   <nevow:slot name="author" />	<br/>	comments:	<ul id="comments" nevow:data="comments" nevow:render="sequence">	  <li nevow:pattern="item" nevow:render="comment">	    by:   <nevow:slot name="author" />	    text: <nevow:slot name="comment" />	  </li>	</ul>      </div>    </div>    def data_urls(self, context, data):	return self.service.getAll()    def render_url(self, context, data):	id, url = data	context.tag.fillSlots('link', url.getLink())	context.tag.fillSlots('keywords', ", ".join(url.getKeywords()))	context.tag.fillSlots('author', url.getAuthor())	return context.tag    def data_comments(self, context, data):	return data[1].getComments()    def render_comment(self, context, data):	context.tag.fillSlots('author', data[0])	context.tag.fillSlots('comment', data[2])	return context.tag