django写的Rss怎么不大对，帮我看看捏

from django.conf.urls import patterns, include, url
from django.views.generic import ListView,DetailView
from blog.models import Post
from blog.views import tagpage
from django.contrib.syndication.views import Feed

class BlogFeed(Feed):

    title = 'MySite'
    description = 'Some ramblings of mine'
    link = '/blog/feed/'

    def items(self):
        return Post.objects.all().order_by('-created')[:2]

    def item_title(self,item):
        return item.title

    def item_description(self,item):
        return item.body

    def item_link(self,item):
        return u'/blog/%d'% item.id

urlpatterns = patterns('blog.view',

    url(r'^$',ListView.as_view(
                            queryset = Post.objects.all().order_by("-created")[:2],
                            template_name = 'blog.html')),

    url(r'^(?P<pk>\d+)/$',DetailView.as_view(
                        model = Post,template_name = "post.html")),

    url(r'^archives/$',ListView.as_view(
                            queryset = Post.objects.all().order_by("-created"),
                            template_name = 'archives.html')),

    url(r'(?P<tag>\w+)/$',tagpage),
    url(r'^feed/$',BlogFeed()),
)