Simple guestbook django: __init__() takes 1 positional argument but 2 were given

Question

I'm new to Django and trying to make a simple guestbook application to get used to the environment. I get the following mistake, but I can't locate the error:

Exception Value: _init_() takes 1 positional argument but 2 were given.

from django.db import models from django.contrib.auth.models import User from django.contrib import admin  class Bericht(models.Model):     titel = models.CharField(max_length=50)     auteur = models.ForeignKey(User, blank=True)     email = models.EmailField(max_length=75)     inhoud = models.TextField(max_length=10000, blank=True)     datum = models.DateTimeField(auto_now_add=True)      def __str__(self):         return str(self.auteur) + " : " + str(self.titel)      class Meta:         verbose_name_plural = "berichten"  class BerichtAdmin(admin.ModelAdmin):     list_display = ["auteur", "datum", "titel"]     list_filter = ["datum", "auteur"]  admin.site.register(Bericht, BerichtAdmin) 

The view

from django.shortcuts import render from django.views.generic import ListView from Gastenboek.models import *  class BerichtListView(ListView):     model = Bericht.objects.all()     template_name = 'template/bericht_lijst.html'     paginate_by = 10     context_object_name = "bericht_lijst" # Create your views here. 

urls.py

from django.conf.urls import patterns, include, url  from django.contrib import admin admin.autodiscover()  urlpatterns = patterns('',     # Examples:     # url(r'^$', 'Niels.views.home', name='home'),     # url(r'^blog/', include('blog.urls')),      url(r'^admin/', include(admin.site.urls)),     (r"^(\d+)/$", 'Gastenboek.views.BerichtListView'),     (r"", 'Gastenboek.views.BerichtListView'), ) 

Traceback

Environment:   Request Method: GET Request URL: http://127.0.0.1:8000/  Django Version: 1.6.1 Python Version: 3.3.3 Installed Applications: ('django.contrib.admin',  'django.contrib.auth',  'django.contrib.contenttypes',  'django.contrib.sessions',  'django.contrib.messages',  'django.contrib.staticfiles',  'Gastenboek') Installed Middleware: ('django.contrib.sessions.middleware.SessionMiddleware',  'django.middleware.common.CommonMiddleware',  'django.middleware.csrf.CsrfViewMiddleware',  'django.contrib.auth.middleware.AuthenticationMiddleware',  'django.contrib.messages.middleware.MessageMiddleware',  'django.middleware.clickjacking.XFrameOptionsMiddleware')   Traceback: File "C:\Python33\lib\site-packages\django\core\handlers\base.py" in get_response   114.                     response = wrapped_callback(request, *callback_args, **callback_kwargs)  Exception Type: TypeError at / Exception Value: __init__() takes 1 positional argument but 2 were given 

Answer 1

In your urls.py:

You are missing .as_view()

change it to:

(r"^(\d+)/$", Gastenboek.views.BerichtListView.as_view()), (r"", Gastenboek.views.BerichtListView.as_view()),