old_contents: #!/usr/bin/env python
  import os
  import sys
  
  if __name__ == "__main__":
      os.environ.setdefault("DJANGO_SETTINGS_MODULE", "demo_project.settings")
  
      from django.core.management import execute_from_command_line
  
      execute_from_command_line(sys.argv)
  
new_contents: #!/usr/bin/env python
  import os
  import sys
  
  if __name__ == "__main__":
      os.environ.setdefault("DJANGO_SETTINGS_MODULE", "demo_project.settings.local")
  
      from django.core.management import execute_from_command_line
  
      execute_from_command_line(sys.argv)
  
subject: use local settings by default