old_contents: # Copyright (c) 2008 Participatory Culture Foundation
  # See LICENSE for details.
  
  from channelguide import util
  from channelguide.guide import tables
  from sqlhelper.orm import Record
  from sqlhelper.orm.columns import Subquery
  class Rating(Record):
      table = tables.channel_rating
  
  class GeneratedRatings(Record):
      table = tables.generated_ratings
  
new_contents: # Copyright (c) 2008 Participatory Culture Foundation
  # See LICENSE for details.
  
  from channelguide.guide import tables
  from sqlhelper.orm import Record
  
  class Rating(Record):
      table = tables.channel_rating
  
  class GeneratedRatings(Record):
      table = tables.generated_ratings
  
subject: remove unused imports