Reverse for 'results' with arguments '(3L,)' and keyword arguments '{}' not found.

I am in the middle of tutorial 4, but am getting an error.
What did I do wrong?

NoReverseMatch at /polls/3/vote/

Reverse for 'results' with arguments '(3L,)' and keyword arguments '{}' not found. 1 pattern(s) tried: [u'polls/(lP<question_id>\\d+)/results/$']

Request Method:	POST
Request URL:	http://www.alzacloud.net:8000/polls/3/vote/
Django Version:	1.7.1
Exception Type:	NoReverseMatch
Exception Value:	Reverse for 'results' with arguments '(3L,)' and keyword arguments '{}' not found. 1 pattern(s) tried: [u'polls/(lP<question_id>\\d+)/results/$']
Exception Location:	/home/terryl/cloud/local/lib/python2.7/site-packages/django/core/urlresolvers.py in _reverse_with_prefix, line 468
Python Executable:	/home/terryl/cloud/bin/python
Python Version:	2.7.6
Python Path:	['/home/terryl/pjtcloud', '/home/terryl/cloud/lib/python2.7', '/home/terryl/cloud/lib/python2.7/plat-x86_64-linux-gnu', '/home/terryl/cloud/lib/python2.7/lib-tk', '/home/terryl/cloud/lib/python2.7/lib-old', '/home/terryl/cloud/lib/python2.7/lib-dynload', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-x86_64-linux-gnu', '/usr/lib/python2.7/lib-tk', '/home/terryl/cloud/local/lib/python2.7/site-packages', '/home/terryl/cloud/lib/python2.7/site-packages']

polls/urls.py

from django.conf.urls import patterns, include, url
from django.contrib import admin
from polls import views

#urlpatterns = patterns('',
#    url(r'^polls/', include('polls.urls')),
#    url(r'^admin/', include(admin.site.urls)),
#)

    # ex: /polls/
    # ex: /polls/5/
    # ex: /polls/5/results/
    # ex: /polls/5/vote/
urlpatterns = patterns('',
    url(r'^$', views.index, name='index'),
    url(r'^(?P<question_id>\d+)/$', views.detail, name='detail'),
    url(r'^(lP<question_id>\d+)/results/$', views.results, name='results'),
    url(r'^(?P<question_id>\d+)/vote/$', views.vote, name='vote'),
)


polls/views.py

from django.shortcuts import get_object_or_404, render  from django.http import HttpResponseRedirect, HttpResponse  from django.core.urlresolvers import reverse    from polls.models import Choice, Question  # ...  def vote(request, question_id):      p = get_object_or_404(Question, pk=question_id)      try:          selected_choice = p.choice_set.get(pk=request.POST['choice'])      except (KeyError, Choice.DoesNotExist):          # Redisplay the question voting form.          return render(request, 'polls/detail.html', {              'question': p,              'error_message': "You didn't select a choice.",          })      else:          selected_choice.votes += 1          selected_choice.save()          # Always return an HttpResponseRedirect after successfully dealing          # with POST data. This prevents data from being posted twice if a          # user hits the Back button.          return HttpResponseRedirect(reverse('polls:results', args=(p.id,)))

--
You received this message because you are subscribed to the Google Groups "Django users" group.
To unsubscribe from this group and stop receiving emails from it, send an email to django-users+unsubscribe@googlegroups.com.
To post to this group, send email to django-users@googlegroups.com.
Visit this group at http://groups.google.com/group/django-users.
To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/3995d3d9-63b9-4cb4-ab65-49c85e8c8b87%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.