python - Use underscore builtin in script -

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In an interactive console (in Python) I can do this; 

  k = 5 df generator (I): I + = Generator for J. Generator (J): J Print _   
 Where  _  variables take the latest value. This can be very useful for me, when I want to loop through a generator and print an incorrect statement and raise an exception. However, when you run a script,  _  does not appear - E. G.  $ python my_script.py . (I tried to use  __biltine __._  but it fails.)  
 Whether to reach  _  while running a script Any way If not, what are the options that I can take advantage of?   
 
 
  _  is a special variable that is present in interactive sessions. However, due to the scrolling rules of Python, the  j  variable remains in existence when the  for  loop ends. Therefore, you can simply: Generator (j) in J for  
 : near print j

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