import pygame
import time
import threading

pygame.init()


def g():
    time.sleep(3)
    pygame.event.post(pygame.event.Event(32, {}))
threading.Thread(target=g).start()

size = width, height = 300, 300
screen = pygame.display.set_mode(size)
screen.fill((0, 0, 0))

pygame.display.flip()

while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            raise SystemExit
        if event.type == 32:
            print('wow awesome')