Django new user: NameError even though class is defined in views -

i new python , newer django. following effectivedjango tutorial . project folder has following structure.

addressbook   - addressbook       - _init_.py       - settings.py       - urls.py       - wsgi.py       - _init_.pyc       - settings.pyc       - urls.pyc       - wsgi.pyc    - contacts       - forms.py       - _init_.py       - models.py       - tests.py       - views.py       - forms.pyc       - _init_.pyc       - models.pyc       - tests.pyc       - views.pyc       - templates             - contact_list.html             - edit_contact.html</li> 

views:

# create views here.  django.views.generic import listview django.core.urlresolvers import reverse django.views.generic import createview contacts.models import contact import forms  class listcontactview(listview):      model = contact     template_name = 'contact_list.html'  class createcontactview(createview):      model = contact     template_name = 'edit_contact.html'     form_class = forms.contactform      def get_success_url(self):         return reverse('contacts-list')  class updatecontactview(updateview):      model = contact     template_name = 'edit_contact.html'     form_class = forms.contactform 

models:

from django.db import models  # create models here. class contact(models.model):      first_name = models.charfield(         max_length=255,     )     last_name = models.charfield(         max_length=255,      )      email = models.emailfield()      def __str__(self):          return ' '.join([             self.first_name,             self.last_name,         ]) 

urls

from django.conf.urls import patterns, include, url  # uncomment next 2 lines enable admin: # django.contrib import admin # admin.autodiscover()  import contacts.views  urlpatterns = patterns('',url(r'^$', contacts.views.listcontactview.as_view(),         name='contacts-list',), url(r'^new$', contacts.views.createcontactview.as_view(),     name='contacts-new',),      # examples:     # url(r'^$', 'addressbook.views.home', name='home'),     # url(r'^addressbook/', include('addressbook.foo.urls')),      # uncomment admin/doc line below enable admin documentation:     # url(r'^admin/doc/', include('django.contrib.admindocs.urls')),      # uncomment next line enable admin:     # url(r'^admin/', include(admin.site.urls)), ) 

when try run development server through virtualenv following errors:

traceback: ... file "/home/rudresh/tutorial/addressbook/addressbook/urls.py" in <module>   7. import contacts.views file "/home/rudresh/tutorial/addressbook/contacts/views.py" in <module>   23. class updatecontactview(updateview):  exception type: nameerror @ /new exception value: name 'updateview' not defined 

i thought defined updateview in views dont know doing wrong. suggestion appreciated.

thanks

in views, use listview, createview , updateview, import listview , createview.

views.py:

from django.views.generic import listview, createview, updateview django.core.urlresolvers import reverse contacts.models import contact import forms ...