Where's the error in this simple pygame program? (sys.exit() not working) [duplicate]

Question

This question already has answers here:

Closed 8 years ago.

Possible Duplicate:
Pygame programs hanging on exit

Ran this simple program:

import pygame, sys

pygame.init()

screen = pygame.display.set_mode((800,600))

while True:
    #process input
    for event in pygame.event.get():
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_ESCAPE:
                sys.exit()

Got this simple message in IDLE:

Traceback (most recent call last):
  File "C:/Users/Aerovistae/Desktop/GD_in_class", line 12, in <module>
    sys.exit()
SystemExit

And the program stops responding and has to be Ctrl+Alt+Del'd. I can't see where I'm going wrong here, this is as basic as I can get. I was following what a professor did in lecture, I don't see any difference between my code and his. Can anyone suggest what might cause the problem?

Answer 1

Proper way to quit pygame is to call

pygame.quit()

after the main run loop.

Read From the pygame documentation: http://www.pygame.org/wiki/FrequentlyAskedQuestions#In IDLE why does the Pygame window not close correctly?

Just exit the main run loop instead of sys.exit() and end the program.