'ascii' codec can't encode characters in position 11-17

Question

import re
import time
import requests
import traceback
import urllib.request
from bs4 import BeautifulSoup

url='http://www.avtb678.com/recent/2/'
headers={'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36',
         'Referer':url
         }
wb_data=requests.get(url,headers=headers)
wb_data.encoding="utf-8"
soup=BeautifulSoup(wb_data.text,"lxml")
linklist=soup.select("a")
for link in linklist:
    if len(link)==11:
        link='http://www.avtb678.com'+link['href']
        link=link.split("/")[0]+"//"+link.split("/")[2]+"/"+link.split("/")[3]+"/"+urllib.request.quote(link.split("/")[-2])
        req=urllib.request.Request(link)
        req.add_header('User-Agent','Mozilla/5.0 (Windows NT 6.1; rv,2.0.1) Gecko/20100101 Firefox/4.0.1')
        response=urllib.request.urlopen(req)
        html=response.read()
        p=r'<source src="([^"]*)".*>'
        videolist=re.findall(p,html)
        for each in videolist:
            print(each)

我用的环境是python3.5，IDE环境是pycharm,一运行这个爬虫就显示标题的错误。已经在网上找了各种答案，结果都是python2.7的解决方法，始终不明白是怎么回事，我的编码也是utf—8,为什么会出现这个问题，希望各位大神能够帮忙解决。

Answer 1

videolist=re.findall(p,html.decode('utf8'))

Answer 2

html = response.read()

html的类型是bytes，转换到str就行：

html = response.read().decode('utf-8')

Answer 3

你可以使用soup=BeautifulSoup(wb_data.context,"lxml")