import sys
import pygame

pygame.init()
WIDTH, HEIGHT = 640, 720
screen = pygame.display.set_mode((WIDTH, HEIGHT))
pygame.display.set_caption("Space Invaders — этап 0")
clock = pygame.time.Clock()

running = True
while running:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
        elif event.type == pygame.KEYDOWN and event.key == pygame.K_ESCAPE:
            running = False

    screen.fill((8, 10, 24))
    pygame.display.flip()
    clock.tick(60)

pygame.quit()
sys.exit()