old_contents: import datetime
  import factory
  
  from . import models
  
  
  class EditorFactory(factory.DjangoModelFactory):
      FACTORY_FOR = models.Editor
  
      base_id = factory.Sequence(lambda i: '%d' % i)
      username = factory.Sequence(lambda i: 'dancer#%s' % i)
      password = 'dancefloor'
      name = 'Tsunku'
      email = factory.LazyAttribute(lambda a: '{0}@example.com'.format(a.name).lower())
      started = datetime.datetime.now()
  
  
new_contents: import datetime
  import factory
  
  from . import models
  
  
  class EditorFactory(factory.DjangoModelFactory):
      FACTORY_FOR = models.Editor
  
      base_id = factory.Sequence(lambda i: '%d' % i)
      username = factory.Sequence(lambda i: 'dancer#%s' % i)
      password = 'dancefloor'
      name = 'Tsunku'
      email = factory.LazyAttribute(lambda a: '{0}@example.com'.format(a.name).lower())
      started = datetime.datetime.now()
  
subject: Fix a W391 error.