old_contents: from django.shortcuts import render_to_response
  from django.template import RequestContext
  
  from cms.models import Page
  
  
  def page(request, slug):
      
      page = Page.objects.get(path=slug)
      
      return render_to_response("cms/page_detail.html", {
          "page": page,
      }, context_instance=RequestContext(request))
  
new_contents: from django.shortcuts import render_to_response
  from django.template import RequestContext
  
  from cms.models import Page
  
  
  def page(request, slug):
      
      page = Page.objects.get(path=slug)
      siblings = page.get_siblings(include_self=True)
      
      return render_to_response("cms/page_detail.html", {
          "page": page,
          "siblings": siblings,
      }, context_instance=RequestContext(request))
  
subject: add sibling pages to context