如果请求响应为 404 或 505，如何跳过页面

Question

我在 python 写了一个爬虫。不幸的是，当爬虫遇到 404 或 505 页面时，它会停止工作。我怎样才能在我的循环中跳过这些页面以避免这个问题？

这是我的代码：

import requests
from bs4 import BeautifulSoup
import time
c = int(40622)
a = 10
for a in range(10):
    url = 'https://example.com/rockery/'+str(c)
    c = int(c) + 1
    print('-------------------------------------------------------------------------------------')
    print(url)
    print(c)
    time.sleep(5)
    response = requests.get(url)
    html = response.content
    soup = BeautifulSoup(html, "html.parser")
    name = soup.find('a', attrs={'class': 'name-hyperlink'})
    name_final = name.text

    name_details = soup.find('div', attrs={'class': 'post-text'})
    name_details_final = name_details.text
    
    name_taglist = soup.find('div', attrs={'class': 'post-taglist'})
    name_taglist_final = name_taglist.text

    name_accepted_tmp = soup.find('div', attrs={'class': 'accepted-name'})
    name_accepted = name_accepted_tmp.find('div', attrs={'class': 'post-text'})
    name_accepted_final = name_accepted.text

    print('q_title=',name_final,'\nq_details=',name_details,'\nq_answer=',name_accepted)
    print('-------------------------------------------------------------------------------------')

这是我在点击 404 或 505 页面时遇到的错误：

error

Traceback (most recent call last):

File "scrab.py", line 18, in

name_final = name.text

AttributeError: 'NoneType' object has no attribute 'text'

Answer 1

检查响应的状态代码，如果它不是 200（确定），您可以通过使用 continue 语句进入循环中的下一个迭代来跳过它：

response = requests.get(url)
if response.status_code != 200: #could also check == requests.codes.ok
   continue

如果请求响应为 404 或 505，如何跳过页面

How to skip page if request response is 404 or 505

python

web-scraping

python-3.6