itchat和wordcloud对微信好友的签名进行画像

获取好友列表的时候，返回的json信息中还看到了有个性签名的信息，脑洞一开，把大家的个性签名都抓下来，看看高频词语，还做了个词云。

# coding:utf-8
import itchat

# 先登录
itchat.login()

# 获取好友列表
friends = itchat.get_friends(update=True)[0:]
for i in friends:
    # 获取个性签名
    signature = i["Signature"]
print signature

先全部抓取下来 
打印之后你会发现，有大量的span，class，emoji，emoji1f3c3等的字段，因为个性签名中使用了表情符号，这些字段都是要过滤掉的，写个正则和replace方法过滤掉

for i in friends:
# 获取个性签名
    signature = i["Signature"].strip().replace("span", "").replace("class", "").replace("emoji", "")
# 正则匹配过滤掉emoji表情，例如emoji1f3c3等
    rep = re.compile("1fd.+")
    signature = rep.sub("", signature)
    print signature

接来下用jieba分词，然后制作成词云，首先要安装jieba和wordcloud库

pip install jieba
pip install wordcloud

代码

# coding:utf-8
import itchat
import re

itchat.login()
friends = itchat.get_friends(update=True)[0:]
tList = []
for i in friends:
    signature = i["Signature"].replace(" ", "").replace("span", "").replace("class", "").replace("emoji", "")
    rep = re.compile("1fd.+")
    signature = rep.sub("", signature)
    tList.append(signature)

# 拼接字符串
text = "".join(tList)

# jieba分词
import jieba
wordlist_jieba = jieba.cut(text, cut_all=True)
wl_space_split = " ".join(wordlist_jieba)

# wordcloud词云
import matplotlib.pyplot as plt
from wordcloud import WordCloud
import PIL.Image as Image

# 这里要选择字体存放路径，这里是Mac的，win的字体在windows／Fonts中
my_wordcloud = WordCloud(background_color="white", max_words=2000, 
                         max_font_size=40, random_state=42,
                         font_path='/Users/sebastian/Library/Fonts/Arial Unicode.ttf').generate(wl_space_split)

plt.imshow(my_wordcloud)
plt.axis("off")
plt.show()

修改一下代码

# wordcloud词云
import matplotlib.pyplot as plt
from wordcloud import WordCloud, ImageColorGenerator
import os
import numpy as np
import PIL.Image as Image


d = os.path.dirname(__file__)
alice_coloring = np.array(Image.open(os.path.join(d, "wechat.jpg")))
my_wordcloud = WordCloud(background_color="white", max_words=2000, mask=alice_coloring,
                         max_font_size=40, random_state=42,
                         font_path='/Users/sebastian/Library/Fonts/Arial Unicode.ttf')
    .generate(wl_space_split)

image_colors = ImageColorGenerator(alice_coloring)
plt.imshow(my_wordcloud.recolor(color_func=image_colors))
plt.imshow(my_wordcloud)
plt.axis("off")
plt.show()

# 保存图片 并发送到手机
my_wordcloud.to_file(os.path.join(d, "wechat_cloud.png"))
itchat.send_image("wechat_cloud.png", 'filehelper')