Image.save 给出 AttributeError：“NoneType”对象没有属性“save”错误

问：

我的代码在保存图像时出现错误

以下是我的代码：

import sys
from PIL import Image, ImageOps
import os
import PIL

#suppurted formet
spfr = [".jpeg", ".jpg", ".png"]

#check CLA
if len(sys.argv) < 3:
    sys.exit("Too few command-line arguments")
elif len(sys.argv) > 3:
    sys.exit("Too many command-line arguments")
elif os.path.splitext(sys.argv[1])[1] != os.path.splitext(sys.argv[2])[1]:
     sys.exit("Not same extension")
elif os.path.splitext(sys.argv[1])[1] not in spfr:
    sys.exit("Not a image")

#open image
try:
    shirt = Image.open("shirt.png")
    old = Image.open(sys.argv[1])
except FileNotFoundError or PIL.UnidentifiedImageError:
    sys.exit()

shirt_size = shirt.size

old = ImageOps.fit(old, shirt_size)

new = old.paste(shirt, shirt)

new.save(sys.argv[2])

它给了我以下错误：

Traceback (most recent call last):
  File "/workspaces/116355975/Python/shirt/shirt.py", line 32, in <module>
    new.save(
    ^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'save'

我该怎么办

我正在加速它将图像保存到新文件