old_contents: from django.conf.urls.defaults import *
  import views
  
  urlpatterns = patterns('',
      (r'^tag/(?P<tag>.*)/?', views.bytag),
      (r'^(?P<year>[0-9]+)/(?P<month>[^/]*)/(<?P<slug>[^/]*)/?', views.post),
      (r'^/?', views.mostrecent),
  )
  
new_contents: from django.conf.urls.defaults import *
  import views
  
  urlpatterns = patterns('',
      (r'^tag/(?P<tag>.*)/?', views.bytag),
      (r'^(?P<year>[0-9]+)/(?P<month>[^/]*)/(?P<slug>[^/]*)/?', views.post),
      (r'^/?', views.mostrecent),
  )
  
subject: Fix regex on urls.py