获取图片大小

import io, urllib
from PIL import Image

# url = 'https://steamcdn-a.akamaihd.net/steamcommunity/public/images/apps/578080/ecb8776e4e2b3d962a16b58e1172d5c277a52fa0.ico'
url = 'https://steamcdn-a.akamaihd.net/steamcommunity/public/images/apps/578080/93d896e7d7a42ae35c1d77239430e1d90bc82cae.jpg'
file = urllib.request.urlopen(url)
tmpIm = io.BytesIO(file.read())
im = Image.open(tmpIm)
print(im.format, im.size, im.mode)