import pygame

screenx = 1280
screeny = 720

pygame.init()
screen = pygame.display.set_mode((screenx,screeny))
clock = pygame.time.Clock()
running = True #you better start running...

while running:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False

    screen.fill("black")

    pygame.display.flip()

    clock.tick(60)

pygame.quit()