old_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  
  bind = '127.0.0.1:8001'
  workers = 6
  proc_name = 'lastuser'
  
new_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  
  bind = '127.0.0.1:8002'
  workers = 6
  proc_name = 'lastuser'
  
subject: Use a different port for lastuser