old_contents: from django.apps import AppConfig
  from django.utils.translation import ugettext_lazy as _
  
  
  class DjangoFfmpegConfig(AppConfig):
      name = 'django_ffmpeg'
      verbose_name = _('Videos')
  
new_contents: import os
  
  from django.apps import AppConfig
  from django.conf import settings
  from django.utils.translation import ugettext_lazy as _
  
  from django_ffmpeg import defaults as ffmpeg_settings
  
  
  class DjangoFfmpegConfig(AppConfig):
      name = 'django_ffmpeg'
      verbose_name = _('Videos')
  
      def ready(self):
          self._make_directories()
  
      def _make_directories(self):
          dirs = (
              ffmpeg_settings.FFMPEG_ORIG_VIDEO,
              ffmpeg_settings.FFMPEG_THUMB_VIDEO,
              ffmpeg_settings.FFMPEG_CONV_VIDEO,
          )
          for _ in dirs:
              os.makedirs(os.path.join(
                  settings.MEDIA_ROOT,
                  ffmpeg_settings.FFMPEG_PRE_DIR,
                  _
              ), exist_ok =True)
  
subject: Make necessary directories