recalculating only the new hanchans shoud do the trick now.

the racalc cronjob reports erronous partly recalculations now.
A lot of code cleanups

src/content/feeds.py

@@ -7,8 +7,8 @@ from django.utils.translation import ugettext as _
 
 from content.models import Article
 
-MAX_ARTICLE_ITEMS = 10 # Maximum count of articles in the news RSS feed.
-MAX_COMMENT_ITEMS = 40 # Maximum count of comments in the comments RSS feed.
+MAX_ARTICLE_ITEMS = 10  # Maximum count of articles in the news RSS feed.
+MAX_COMMENT_ITEMS = 40  # Maximum count of comments in the comments RSS feed.
 
 
 # Start ignoring PyLintBear (R0201)

src/content/views.py

@@ -31,7 +31,7 @@ class WYSIWYGEditorMixin(PermissionRequiredMixin):
             request, *args, **kwargs)
 
 
-class ArticleArchiveMixin():
+class ArticleArchiveMixin(object):
     """Mixin to add common context data to Views of the news archive."""
     category = None