<ul nevow:data="request_items" nevow:render="sequence">
         <li nevow:pattern="item" nevow:render="string" />
       </ul>

class Page(rend.Page):
    docFactory = loaders.htmlfile('hellohtml.html')
    def data_request_items (self, context, data):
	request = context.locate (inevow.IRequest)
	return map (str, request.__dict__.items ())