How to use sys exit in Python

Question

player input        This has to be initialized for the loop  while player input    0       player input   str input  Roll or quit  r or q          if player input    q    This will break the loop if the player decides to quit          print  Now let s see if I can beat your score of   player          break      if player input    r           print  invalid choice  try again        if player input   r           roll  randint  1 8           player   roll      sign helps to keep track of score           print  You rolled is     str roll            if roll   1               print  You Lose                   sys exit              break     I am trying to tell the program to exit if roll    1 but nothing is happening and it just gives me an error message when I try to use sys exit      This is the message that it shows when I run the program   Traceback  most recent call last    line 33  in  lt module gt      sys exit   SystemExit

User · Answer

Using 2 7   from functools import partial from random import randint  for roll in iter partial randint  1  8   1       print  you rolled      format roll  print  oops you rolled a 1    you rolled  7 you rolled  7 you rolled  8 you rolled  6 you rolled  8 you rolled  5 oops you rolled a 1    Then change the  oops  print to a raise SystemExit

User · Answer

you didn t import sys in your code  nor did you close the    when calling the function     try    import sys sys exit

User · Answer

In tandem with what Pedro Fontez said a few replies up  you seemed to never call the sys module initially  nor did you manage to stick the required    at the end of sys exit  so  import sys  and when finished  sys exit

User · Answer

I think you can use  sys exit 0    You may check it here in the python 2 7 doc       The optional argument arg can be an integer giving the exit status  defaulting to zero   or another type of object  If it is an integer  zero is considered    successful termination    and any nonzero value is considered    abnormal termination    by shells and the like

User · Answer

sys exit   raises a SystemExit exception which you are probably assuming as some error  If you want your program not to raise SystemExit but return gracefully  you can wrap your functionality in a function and return from places you are planning to use sys exit

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