old_contents: #!/usr/bin/env python
  import sys
  
  if len(sys.argv) == 1:
      while True:
          print("y")
  else:
      output = " ".join(sys.argv[1:]);
      while True:
          print(output)
  
  
new_contents: #!/usr/bin/env python
  import sys
  
  if len(sys.argv) == 1:
      while True:
          print("y")
  
  output = " ".join(sys.argv[1:])
  while True:
      print(output)
  
  
subject: Improve python implementation