old_contents: # -*- coding: utf-8 -*-
  from __future__ import absolute_import, unicode_literals
  
  from django.apps import AppConfig
  from actstream import registry
  
  class ELOsAppConfig(AppConfig):
      name = 'commonrepo.elos'
  
      def ready(self):
          registry.register(self.get_model('ELO'))
          import commonrepo.elos.signals
  
new_contents: # -*- coding: utf-8 -*-
  from __future__ import absolute_import, unicode_literals
  
  from django.apps import AppConfig
  from actstream import registry
  
  
  class ELOsAppConfig(AppConfig):
      name = 'commonrepo.elos'
  
      def ready(self):
          registry.register(self.get_model('ELO'))
          import commonrepo.elos.signals
  
subject: 更新 modules elos/apps.py, 修正 PEP8 警告