Get list of image dimensions from a folder

imagelister.py

from PIL import Image
import os

folder = "./static/imgoriginals/"
print("Width\tHeight\tFilename")
for lead in os.listdir(folder):
    filename = os.path.join(folder, lead)
    im = Image.open(filename)
    width, height = im.size
    try:
        im = Image.open(filename)
        width, height = im.size
        print(str(width) + "\t" + str(height) + "\t" + filename)
    except:
        print("!\t!\t" + filename)