python3.5 爬去糗事百科返回none 怎么破？

Question

import requests
from bs4 import BeautifulSoup
import lxml
# url='http://www.qiushibaike.com/' 
headers={'User-Agent':'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.101 Safari/537.36'}
urls = [];

for i in range(1,36):
    url =  'http://www.qiushibaike.com/8hr/page/'+str(i)+'/?s=4940923'
    urls.append(url)  

def get_substance(url,data=None):
    
    web_data=requests.get(url,headers=headers)
    url_data=web_data.text.encode('utf-8')
    soup=BeautifulSoup(url_data,'lxml')
    names=soup.select('.author > a > h2')
    numberds=soup.select('.stats-vote > .number')
    contents=soup.select('.content > span')
  
    for name,numberd,content in zip (names,numberds,contents):
        data={
               'name':list(name.stripped_strings),
               'numberd':list(numberd.stripped_strings),
               'content':list(content.stripped_strings)
            }
    print(data)
        
for single_url in urls:
    get_substance(single_url)