Hello, I am a STEM teacher in an elementary school. My student have been learning python. We have read the Smiley Pong code, from Teach Your Kids to Code, Chapter 9. We wrote the code exactly from the book, yet the program will run, just we get a blank gray screen. when we click to close the window, we get a momentary flash of what the game looks like. We work on MacBook Air and have the most recent version of Python, 3.7. Our Macs run high Sierra. I attached the code below, can anyone please help? Thank you
SmileyPong1.py import pygame # Setup pygame.init() screen = pygame.display.set_mode([800,600]) pygame.display.set_caption("Smiley Pong") keepGoing = True pic = pygame.image.load("CrazySmile.bmp") colorkey = pic.get_at((0,0)) pic.set_colorkey(colorkey) picx = 0 picy = 0 BLACK = (0,0,0) WHITE = (255,255,255) timer = pygame.time.Clock() speedx = 5 speedy = 5 paddlew = 200 paddleh = 25 paddlex = 300 paddley = 550 picw = 100 pich = 100 points = 0 lives = 5 font = pygame.font.SysFont("Times", 24) while keepGoing: # Game loop for event in pygame.event.get(): if event.type == pygame.QUIT: keepGoing = False picx += speedx picy += speedy if picx <= 0 or picx + pic.get_width() >= 800: speedx = -speedx if picy <= 0: speedy = -speedy if picy >= 500: lives -= 1 speedy = -speedy screen.fill(BLACK) screen.blit(pic, (picx, picy)) # Draw paddle paddlex = pygame.mouse.get_pos()[0] paddlex -= paddlew/2 pygame.draw.rect(screen, WHITE, (paddlex, paddley, paddlew, paddleh)) # Check for paddle bounce if picy + pich >= paddley and picy + pich <= paddley + paddleh \ and speedy > 0: if picx + picw / 2 >= paddlex and picx + picw / 2 <= paddlex + \ paddlew: points += 1 speedy = -speedy # Draw text on screen draw_string = "Lives: " + str(lives) + " Points: " + str(points) text = font.render(draw_string, True, WHITE) text_rect = text.get_rect() text_rect.centerx = screen.get_rect().centerx text_rect.y = 10 screen.blit(text, text_rect) pygame.display.update() timer.tick(60) pygame.quit() # Exit