import pygame
import random
pygame.init()

wielkosc_okna = (400, 350)
okno = pygame.display.set_mode(wielkosc_okna)


while True:
    for event in pygame.event.get():
        print(event)
        if event.type == pygame.QUIT:
            pygame.quit()
            quit()
        if event.type == pygame.KEYDOWN:
            okno.fill((random.randint(0,255),(random.randint(0,255),(random.randint(0,255))


    pygame.display.update()