Bildbearbeitung mit Pillow

from PIL import Image
import glob, os, sys

size = 128, 128

folder = os.path.dirname(__file__)
os.chdir(folder)
print(os.getcwd())

# l = [f for f in os.listdir(folder) if f.endswith('.jpg')]

for infile in os.listdir(folder):
    try:
        im = Image.open(infile)
        file, ext = os.path.splitext(infile)
        print(infile)
        im.thumbnail(size, Image.ANTIALIAS)
        im.save(file + "-thumb.jpg", "JPEG")
    except:
        print("Unexpected error: " , sys.exc_info()[0])