python 笔记 在windows下的程序 获取图片并显示出来

print("start")
import io
import Image
import urllib
import pylab
print("start reading")
conn = urllib.urlopen("http://su.bdimg.com/static/superplus/img/logo_white_ee663702.png")
r=conn.read()
print("finished")
data_stream = io.BytesIO(r)
I=Image.open(data_stream)
#I=I.convert('L')
print(I)
pylab.imshow(I)
pylab.show()