How do I edit multiple files in PIL

Question

I was trying to edit alot of images at the same time using pil and python it shows me this error:

my code so far is below

import glob
import PIL
from PIL import Image

image = glob.glob('./*.png')

img = Image.open(image)
img.putalpha(127)
img.save("")

Answer 1

you may try this:

import glob
import PIL
from PIL import Image

for i in glob.glob('./*.png'):
    img = Image.open(i)
    img.putalpha(127)
    img.save("")