Help with pygame tutorial

[MK_CodingSpace]

I think the indentation should be like this

while running:
    for game_event in pygame.event.get():
        if game_event.type == QUIT:
            running = False
        if game_event.type == KEYDOWN:
            if game_event.key == K_BACKSPACE:
                if len(text)>0: # if length of text is > 0
                    text = text[:-1] # delete the last letter in the string
            else:
                text += game_event.unicode
                # else add the letter to the end of the string

    img = font.render(text, True, RED)
    rect.size=img.get_size()
    cursor.topleft = rect.topright
      
    screen.fill(background)
    screen.blit(img, (20, 20))
    pygame.display.update()