old_contents: #!/usr/bin/env python
  import os
  import sys
  
  if __name__ == "__main__":
      os.environ.setdefault("DJANGO_SETTINGS_MODULE", "settings")
  
      from django.core.management import execute_from_command_line
  
      execute_from_command_line(sys.argv)
  
new_contents: #!/usr/bin/env python
  from django.core.management import execute_manager
  import imp
  try:
      imp.find_module('settings') # Assumed to be in the same directory.
  except ImportError:
      import sys
      sys.stderr.write("Error: Can't find the file 'settings.py' in the directory containing %r. It appears you've customized things.\nYou'll have to run django-admin.py, passing it your settings module.\n" % __file__)
      sys.exit(1)
  
  import settings
  
  if __name__ == "__main__":
      execute_manager(settings)
  
subject: Revert manage.py to old version.