old_contents: 
  INSTALLED_APPS = (
      'geelweb.django.editos',
  )
  
  SECRET_KEY = '$-muc7nzd^9g9z^f+^8@^inpbpixz=)d8k%g%qsgrw*3+)^1t_'
  
  DATABASES = {
      'default': {
          'ENGINE': 'django.db.backends.sqlite3',
          'NAME': ':memory:',
      }
  }
  
  
new_contents: 
  INSTALLED_APPS = (
      'geelweb.django.editos',
  )
  
  SECRET_KEY = '$-muc7nzd^9g9z^f+^8@^inpbpixz=)d8k%g%qsgrw*3+)^1t_'
  
  MIDDLEWARE_CLASSES = (
      'django.contrib.sessions.middleware.SessionMiddleware',
      'django.middleware.common.CommonMiddleware',
      'django.middleware.csrf.CsrfViewMiddleware',
      'django.contrib.auth.middleware.AuthenticationMiddleware',
      'django.contrib.messages.middleware.MessageMiddleware',
      'django.middleware.clickjacking.XFrameOptionsMiddleware',
  )
  
  DATABASES = {
      'default': {
          'ENGINE': 'django.db.backends.sqlite3',
          'NAME': ':memory:',
      }
  }
  
  
subject: define MIDDLEWARE_CLASSES