Python下载图片

python2写法

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#encoding=utf8
import urllib
response = urllib.urlopen('https://img3.doubanio.com/icon/u48729794-40.jpg')
cat_img = response.read()
with open('cat_500_600.jpg','wb') as f:
f.write(cat_img)

python3写法

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#encoding=utf8
import urllib.request
response = urllib.request.urlopen('https://img3.doubanio.com/icon/u48729794-40.jpg')
cat_img = response.read()
with open('cat_500_600.jpg','wb') as f:
f.write(cat_img)