更新时间:2023-02-19 11:17:49
link = i.find('a',href = True)
始终不返回 anchor标签(a)
,它可能返回 NoneType
,因此您需要验证链接是否为None,继续循环,否则获取链接href值.
link = i.find('a',href=True)
always not return anchor tag (a)
, it may be return NoneType
, so you need to validate link is None, continue for loop,else get link href value.
按网址取消链接:
import re
import requests
from bs4 import BeautifulSoup
r = requests.get("https://www.example.com/blog/author/abc")
data = r.content # Content of response
soup = BeautifulSoup(data, "html.parser")
for i in soup.find_all('div',{'class':'post-info-wrap'}):
link = i.find('a',href=True)
if link is None:
continue
print(link['href'])
通过HTML取消链接:
from bs4 import BeautifulSoup
html = '''<div class="post-info-wrap"><h2 class="post-title"><a href="https://www.example.com/blog/111/this-is-1st-post/" title="Example of 1st post – Example 1 Post" rel="bookmark">sample post – example 1 post</a></h2><div class="post-meta clearfix">
<div class="post-info-wrap"><h2 class="post-title"><a href="https://www.example.com/blog/111/this-is-2nd-post/" title="Example of 2nd post – Example 2 Post" rel="bookmark">sample post – example 2 post</a></h2><div class="post-meta clearfix">'''
soup = BeautifulSoup(html, "html.parser")
for i in soup.find_all('div',{'class':'post-info-wrap'}):
link = i.find('a',href=True)
if link is None:
continue
print(link['href'])
更新:
from bs4 import BeautifulSoup
from selenium import webdriver
driver = webdriver.Chrome('/usr/bin/chromedriver')
driver.get("https://www.example.com/blog/author/abc")
soup = BeautifulSoup(driver.page_source, "html.parser")
for i in soup.find_all('div', {'class': 'post-info-wrap'}):
link = i.find('a', href=True)
if link is None:
continue
print(link['href'])
O/P:
https://www.example.com/blog/911/article-1/
https://www.example.com/blog/911/article-2/
https://www.example.com/blog/911/article-3/
https://www.example.com/blog/911/article-4/
https://www.example.com/blog/random-blog/article-5/
对于Chrome浏览器:
http://chromedriver.chromium.org/downloads
为Chrome浏览器安装Web驱动程序:
https://christopher.su/2015/selenium-chromedriver-ubuntu/
硒教程
https://selenium-python.readthedocs.io/
其中'/usr/bin/chromedriver'
chrome webdriver路径.
Where '/usr/bin/chromedriver'
chrome webdriver path.