import urllib.request, urllib.parse, urllib.error
img = urllib.request.urlopen('http://www.pythonlearn.com/cover.jpg')
fhand = open('cover.jpg', 'wb')
size = 0
while True:
info = img.read(100000)
if len(info) < 1 : break
size = size + len(info)
fhand.write(info)
print(size,'characters copied.')
fhand.close()