Screen only updates when I check for user input pygame

Question

I\'m using pygame and updating to the screen every loop of the main loop. What I don\'t understand is nothing will update until I add a for loop looking for events, then suddenl

Answer 1

No idea why it doesn't work on your end, however when I run

 def run():
    width = 500
    height = 500
    pygame.init()
    font = pygame.font.Font(None, 72)
    screen = pygame.display.set_mode((width, height))

    before_two = True
    while before_two:

        # Blit the time to the window.
        # Update Screen.
        current_time = datetime.datetime.now()
        text = font.render(f'{current_time.hour} : {current_time.minute} :      {current_time.second}', True, (0, 0, 0))
        blit_center = (
            width // 2 - (text.get_width() // 2),
            height // 2 - (text.get_height() // 2)
        )
        screen.fill((255, 255, 255))
        screen.blit(text, blit_center)
        pygame.display.flip()




run()

Everything works fine update wise. The clock ticks every second so it may be something with your version of python or pygame. Try updating them both. Alternately it could be a problem with how you get pass pygame the dimensions of the window with the run(self) and self._dimensions. Trying using static dimensions like I did above and see if that works on your end. Sadly without more code to see how you call run() its difficult to fully debug whats wrong.