python爬取微信头像（itchat库的使用）

无意中看到罗罗攀老师的文章，发现这个itchat这个库真的太爽了。

记录一下使用的itchat爬取微信头像的代码：

```

importitchat

importmath

importPIL.ImageasImage

importos

itchat.auto_login()

friends = itchat.get_friends(update=True)[0:]

user = friends[0]["UserName"]

num =0

foriinfriends:

img = itchat.get_head_img(userName=i["UserName"])

fileImage =open('E:\python\image'+"/"+str(num) +".jpg",'wb')

fileImage.write(img)

fileImage.close()

num +=1

ls = os.listdir('E:\python\image')

each_size =int(math.sqrt(float(640*640)/len(ls)))

lines =int(640/each_size)

image = Image.new('RGB', (640,640))

x =0

y =0

foriinrange(0,len(ls)+1):

try:

img = Image.open('E:\python\image'+"/"+str(i) +".jpg")

exceptIOError:

print("Error")

else:

img = img.resize((each_size, each_size), Image.ANTIALIAS)

image.paste(img, (x * each_size, y * each_size))

x +=1

ifx == lines:

x =0

y +=1

image.save('E:\python\image'+"/"+"all.jpg")

itchat.send_image('E:\python\image'+"/"+"all.jpg",'filehelper')

```

先用pip下载itchat库，命令为：pip install itchat

之后用python执行：python index.py

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