multiple valuesfor keyword arguement 'prefix'

[Phil]

Hi,

I have a basic django blog built and am now trying to use generic views in it but am getting the following error, I'm not sure where I am going wrong:

********************************
Environment:


Request Method: GET
Request URL: http://127.0.0.1:8080/blog/

Django Version: 1.3.1
Python Version: 2.7.2
Installed Applications:
['django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.sites',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'django.contrib.admin',
 'django.contrib.formtools',
 'django.contrib.admindocs',
 'tagging',
 'blog']
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/local/lib/python2.7/dist-packages/django/core/handlers/base.py" in get_response
  101.                             request.path_info)
File "/usr/local/lib/python2.7/dist-packages/django/core/urlresolvers.py" in resolve
  252.                     sub_match = pattern.resolve(new_path)
File "/usr/local/lib/python2.7/dist-packages/django/core/urlresolvers.py" in resolve
  250.             for pattern in self.url_patterns:
File "/usr/local/lib/python2.7/dist-packages/django/core/urlresolvers.py" in _get_url_patterns
  279.         patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
File "/usr/local/lib/python2.7/dist-packages/django/core/urlresolvers.py" in _get_urlconf_module
  274.             self._urlconf_module = import_module(self.urlconf_name)
File "/usr/local/lib/python2.7/dist-packages/django/utils/importlib.py" in import_module
  35.     __import__(name)
File "/home/phil/mydev/projects/job/blog/urls.py" in <module>
  15.     (r'^(?P<year>\d{4})/(?P<month>\w{3})/(?P<day>\d{2})/(?P<slug>[-\w]+)/$', 'object_detail', entry_info_dict, 'blog_entry_detail', {'template_name': 'blog/detail.html'}),
File "/usr/local/lib/python2.7/dist-packages/django/conf/urls/defaults.py" in patterns
  24.             t = url(prefix=prefix, *t)

Exception Type: TypeError at /blog/
Exception Value: url() got multiple values for keyword argument 'prefix'


******************************************************************************************

my 'urls.py':


from django.conf.urls.defaults import *
from blog.models import Entry

entry_info_dict = {
    'queryset': Entry.objects.all(),
    'date_field': 'pub_date',
}

urlpatterns = patterns('django.views.generic.date_based',
    (r'^$', 'archive_index', entry_info_dict, 'blog_entry_archive_index', {'template_name': 'blog/index.html'}),
    (r'^(?P<year>\d{4})/$', 'archive_year', entry_info_dict, 'blog_entry_archive_year'),
    (r'^(?P<year>\d{4})/(?P<month>\w{3})/$', 'archive_month', entry_info_dict, 'blog_entry_archive_month'),
    (r'^(?P<year>\d{4})/(?P<month>\w{3})/(?P<day>\d{2})/$', 'archive_day', entry_info_dict, 'blog_entry_archive_day'),
    (r'^(?P<year>\d{4})/(?P<month>\w{3})/(?P<day>\d{2})/(?P<slug>[-\w]+)/$', 'object_detail', entry_info_dict, 'blog_entry_detail', {'template_name': 'blog/detail.html'}),
)



*************************************

end of 'Entry' in models.py:

"""
def get_absolute_url(self):
        return ('blog_entry_detail', (), {'year': self.pub_date.strftime("%Y"),
                                        'month': self.pub_date.strftime("%b").lower(),
                                        'day': self.pub_date.strftime("%d"),
                                        'slug': self.slug})
    get_absolute_url = models.permalink(get_absolute_url)