Fix webapp and sikweb py files pep8

webapp/translation.py

@@ -1,22 +1,32 @@
+"""Translation classes."""
+
 from modeltranslation.translator import register, TranslationOptions
 from webapp.models import BaseFeed, Feed, Tag, Event
 
 
 @register(BaseFeed)
 class BaseFeedTranslationOptions(TranslationOptions):
-        fields = ('title', 'description', 'content')
+    """Class for base feed translation options."""
+
+    fields = ('title', 'description', 'content')
 
 
 @register(Feed)
 class FeedTranslationOptions(TranslationOptions):
-        fields = ()
+    """Class for feed translation options."""
+
+    fields = ()
 
 
 @register(Event)
 class EventTranslationOptions(TranslationOptions):
-        fields = ()
+    """Class for event translation options."""
+
+    fields = ()
 
 
 @register(Tag)
 class TagTranslationOptions(TranslationOptions):
-        fields = ('name',)
+    """Class for tag translation options."""
+
+    fields = ('name',)