So I'm making a constellation which starts from (0,0) to wherever I left click and the previous line should disappear after a 2-second delay. During 2 secs, left clicks will not become a line but shown as white circles. 

Right now I have a problem with making white circles showing on my code: 

```py
# left clicked lines were more than 1 & been less than 2 secs    
            if e.type == MOUSEBUTTONDOWN and time.get_ticks() - times <= 2000:   
                # Gets position of the mouse
                circleX, circleY = mouse.get_pos() 
                # the white circles appear 
                draw.circle (screen, WHITE, (circleX, circleY), 1)

```