code: def lookup_thread_id(self):
          "Lookup the thread id as path to comment file."
  
          path = os.path.join(self.realm, self.topic + '.csv')
          return patf lookup_thread_id(self):
          "Lookup the thread id as path to comment file."
  
          path = os.path.join(self.realm, self.topic + '.csv')
          return path
docs: Lookup the thread id as path to comment file.