入门的飞船问题报错，哪位大佬帮帮小弟

入门的飞船问题报错，哪位大佬帮帮小弟
Traceback (most recent call last):
  File "C:/Users/Mario、/PycharmProjects/alien game/main.py", line 19, in <module>
    run_game()
  File "C:/Users/Mario、/PycharmProjects/alien game/main.py", line 8, in run_game
    print(ai_settings.screen_height)
AttributeError: 'Settings' object has no attribute 'screen_height'

Process finished with exit code 1

main.py

import sys
import pygame
from settings import Settings
from ship import Ship
def run_game():
    pygame.init()
    ai_settings = Settings()
    print(ai_settings.screen_height)
    screen=pygame.display.set_mode(
         (ai_settings.screen_width, ai_settings.screen_height))
    pygame.display.set_caption("Alien Invasion")
    ship = Ship(screen)
    while True:
        for event in pygame.event.get():
            if event.type == game.QUIT:
                sys.exit()
        screen.fill(ai_settings.bg_color)
        pygame.diplay.flip()
run_game()

setting.py

class Settings():
    def __int__(self):
        self.screen_width = 1200
        self.screen_height = 800
        self.bg_color = (230,230,230)

'Settings' object has no attribute 'screen_height'，没有screen_height属性。

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