improved urls for django 1.6

cartero/urls.py

 # -*- coding: utf-8 -*-
-from django.conf.urls.defaults import *
-from cartero.views import *
+from django.conf.urls import url, patterns
+from cartero.views import (PreviewTemplate, SaveTemplateData, UnsubscribeView, GotoView,
+                           MailTrackView)
 
-urlpatterns = patterns('',
-        url(r'^template-preview/(?P<pk>\d+)/$',
-            PreviewTemplate.as_view(),
-            name='preview_template'),
+urlpatterns = patterns(
+    '',
+    url(r'^template-preview/(?P<pk>\d+)/$',
+        PreviewTemplate.as_view(),
+        name='preview_template'),
 
-        url(r'^template-preview/(?P<pk>\d+)/save-data/$',
-            SaveTemplateData.as_view(),
-            name='save_template_data'),
+    url(r'^template-preview/(?P<pk>\d+)/save-data/$',
+        SaveTemplateData.as_view(),
+        name='save_template_data'),
 
-        url(r'^unsubscribe/(?P<signed_email>.+)/$',
-            UnsubscribeView.as_view(),
-            name='unsubscribe'),
+    url(r'^unsubscribe/(?P<signed_email>.+)/$',
+        UnsubscribeView.as_view(),
+        name='unsubscribe'),
 
-        url(r'^goto/(?P<code>.+)/(?P<campaign_id>.+)/$',
-            GotoView.as_view(),
-            name='click_monitor'),
+    url(r'^goto/(?P<code>.+)/(?P<campaign_id>.+)/$',
+        GotoView.as_view(),
+        name='click_monitor'),
 
-        url(r'^track/(?P<mailtrack_id>.+)\.png$',
-            MailTrackView.as_view(),
-            name='track'),
+    url(r'^track/(?P<mailtrack_id>.+)\.png$',
+        MailTrackView.as_view(),
+        name='track'),
 )
-