Fans of Jianshu have broken 1,000 followers. In order to thank you all for your support, we will send you a wave of small benefits. Like and comment on this article, 5 judges will be randomly selected from the comments, and each person will give a red envelope of 10 yuan. The draw time is 7pm on August 6th~

Although there are not many 1,000 fans, it is also affirmation of my study for more than half a year. I am currently studying in graduate school and have no extra income. Don't think it is too small for the judges. When I work in the future, I will give the judges more and better. Welfare~

The random lottery draw is of course using our python crawler. Take a previous article as an example to write the code.

Simple analysis of crawlers

• Find a bag
• Get total_page, this is the number of comment pages
• json gets the user name and saves it in the list
• Set conversion to remove duplicates, randomly select 5 users

Code

import requests
import json
import random

def get_user(url):
    html = requests.get(url)
    json_data = json.loads(html.text)
    comments = json_data['comments']
    for comment in comments:
        nickname = comment['user']['nickname']
        user_list.append(nickname)

if __name__ =='__main__':
    user_list = []
    url ='http://www.jianshu.com/notes/9315244/comments?page=1'
    html = requests.get(url)
    json_data = json.loads(html.text)
    total_pages = json_data['total_pages']
    urls = ['http://www.jianshu.com/notes/9315244/comments?page={}'.format(str(i)) for i in range(1,int(total_pages)+1)]
    for url in urls:
        get_user(url)
    user_list = set(user_list)
    print(random.sample(user_list,5))

Note: This is a random sampling, the result of each run is different, here only run the code once to get lucky audience

I will publish the results in this article

The result is released:

I will contact all the winning fans~ Thank you for your support