#import
import pygame
import sys
pygame.init()
#player_img = pygame.image.load("basket-icon.png")

#bien
screen = pygame.display.set_mode((350,600))
clock = pygame.time.Clock()
running = True

#function
def draw():
    screen.fill('lightblue')

#game
while True:
    #close tab
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            sys.exit()
    #update frame
    clock.tick(60)
    pygame.display.update()

screen is black
it doesn’t work even if i write as screen.fill((0,0,200))
do it wrong?
i want fix it pls help me