This doesn't

gistfile1.txt

#!/usr/bin/python3

import pygame
import sys


class Game():

    def __init__(self):
        self._running = True

    def launch(self):
        pygame.init()
        pygame.display.set_mode((640, 480))
        self.check_exit_game()

    def check_exit_game(self):
        while self._running:
            for event in pygame.event.get():
                if event.type == pygame.QUIT:
                    self._running = False
                    pygame.display.quit()
                    pygame.quit()
                    sys.exit()


if __name__ == "__main__":
    game = Game()
    game.launch()