old_contents: # -*- encoding: utf-8 -*-
  # ! python2
  
  from __future__ import unicode_literals
  from __future__ import print_function
  from __future__ import absolute_import
new_contents: # -*- encoding: utf-8 -*-
  # ! python2
  
  from __future__ import unicode_literals
  from __future__ import print_function
  from __future__ import absolute_import
  
  default_app_config = '{{cookiecutter.main_app}}.apps.MainAppsConfig'
  
subject: Update __init__.py