Django: 404 page not found

[imhomer]

I met "404" page not found when I try to enter 127.0.0.1:8000/cn/bedroom . It says on the webpage that "C:/Django/final/media/bedroom" does not exist". Why would this happen?

urls.py:

from django.conf.urls.defaults import *
from final import settings

from django.contrib import admin

admin.autodiscover()

urlpatterns = patterns('',

    url(r'^admin/', include(admin.site.urls)),

    url(r'^cn/', include('final.photo.urls')),

    url(r'^cn/(?P<path>.*)$', 'django.views.static.serve',

        {'document_root': settings.MEDIA_ROOT}),

)

photo/urls.py:

from django.conf.urls.defaults import *

from final.photo.views import List, Detail

urlpatterns = patterns('',

    url(r'^$', List),
    url(r'^/bedroom/', Detail),

)

photo/views.py:

# Create your views here.

from django.template import loader, Context, RequestContext

from django.http import HttpResponse

from final.photo.models import Image, Audio, Pinyin, SImage

from django.shortcuts import render_to_response

def List(request):

    ShowSImage = SImage.objects.all()
    ShowLink = Image.objects.all()

    context = RequestContext(request, {

         'ShowSImage': ShowSImage, 'ShowLink': ShowLink

    })

    return render_to_response('list.html', context)

def Detail(request):
    ShowImage = Image.objects.all()
    ShowPinyin = Pinyin.objects.all()
    ShowAudio = Audio.objects.all()
    context = RequestContext(request, {
        'ShowAudio': ShowAudio, 'ShowImage': ShowImage, 'ShowPinyin': ShowPinyin
    })
    return render_to_response('detail.html', context)

detail.html:

{% extends "base.html" %}

{% block title %}{{ item.title }}{% endblock %}

{% block content %}

<h2>{{ item.title }}</h2>
<img src="{{ item.get_image_url }}" />
{% if object.caption %}<p>{{ object.caption }}</p>{% endif %}

{% endblock %}

Thanks in advance!