title: No module named index
body: <p>I am getting the error
      <strong>Exception Value:No module named index</strong>. i have <code>__init__.py</code> in DjangoPhoneBook and phonebook folder. I'm newbie to django and i m following the tutorial on djangoproject website. I have googled this error but not getting any solutions.</p>
  
  <p>What is cause and solution to this problem??</p>
  
  <pre><code>Environment:
  
  Request Method: GET
  Request URL: http://localhost:8000/Book/
  Django Version: 1.2.3
  Python Version: 2.6.6
  Installed Applications:
  ['django.contrib.auth',
   'django.contrib.contenttypes',
   'django.contrib.sessions',
   'django.contrib.sites',
   'django.contrib.messages',
   'phonebook',
   'django.contrib.admin']
  Installed Middleware:
  ('django.middleware.common.CommonMiddleware',
   'django.contrib.sessions.middleware.SessionMiddleware',
   'django.middleware.csrf.CsrfViewMiddleware',
   'django.contrib.auth.middleware.AuthenticationMiddleware',
   'django.contrib.messages.middleware.MessageMiddleware')
  
  
  Traceback:
  File "/usr/lib/pymodules/python2.6/django/core/handlers/base.py" in get_response
    91.                         request.path_info)
  File "/usr/lib/pymodules/python2.6/django/core/urlresolvers.py" in resolve
    217.                     sub_match = pattern.resolve(new_path)
  File "/usr/lib/pymodules/python2.6/django/core/urlresolvers.py" in resolve
    215.             for pattern in self.url_patterns:
  File "/usr/lib/pymodules/python2.6/django/core/urlresolvers.py" in _get_url_patterns
    244.         patterns = getattr(self.urlconf_module, "urlpatterns",         self.urlconf_module)
  File "/usr/lib/pymodules/python2.6/django/core/urlresolvers.py" in _get_urlconf_module
    239.             self._urlconf_module = import_module(self.urlconf_name)
  File "/usr/lib/pymodules/python2.6/django/utils/importlib.py" in import_module
    35.     __import__(name)
  
  Exception Type: ImportError at /Book/
  Exception Value: No module named index
  </code></pre>
  
  <p>Contents of urls.py is</p>
  
  <pre><code>from django.conf.urls.defaults import *
  from django.contrib import admin
  admin.autodiscover()
  from DjangoPhoneBook.phonebook.views import *
  
  urlpatterns = patterns('',
      (r'^Book/$', include('index'))
      (r'^admin/', include(admin.site.urls)),
  )
  </code></pre>
  
  <p>and of views.py is</p>
  
  <pre><code>  from django.http import HttpResponse
    def index(request):
       return HttpResponse("This is a view page")
  </code></pre>