python中with open写入错误

Question

import urllib.request
url = 'http://www.csdn.net'
response = urllib.request.urlopen(url)
print(str(response.read()))
with open('E:\Python文件\爬虫\CSDN.html\csdnhtml.html','w') as f:
    f.write(str(response.read()))

问题：为什么会写入“  b''  ”?不应该写入csdn的html源代码吗？怎么处理？

Answer 1

import requests

url = 'http://www.csdn.net'

r = requests.get(url)

with open('E:\Python文件\爬虫\CSDN.html\csdnhtml.html','w',encoding='utf-8') as f:

    f.write(r.text)