Python 抓取 (Beautiful Soup) 以从中获取数据 HTML

Question

 <ul>
  <li>
    <div class="c_logo_box">
     <a href="money-transfer-companies/ria-money-transfer/"><img src="http://www.compareremit.com/uploads/ria-logo11.png" style="height:57px;width:147px;" alt="RIA Money Transfer"></a>
     <span class="rs"> <span class="txt13">&#8377;</span> 61.24</span>
       </div>
  </li>
 ...

我希望从 'alt = Ria Money Transfer' 中删除 name 并从 span 61.24 中删除 rate。

到目前为止我有这个 Python 代码：

#!/usr/bin/python

import requests
import re
from bs4 import BeautifulSoup

r = requests.get('http://www.compareremit.com')
data = r.text

soup = BeautifulSoup(data)
for rate in soup.find_all('li', re.compile('money')):
print rate.text

它什么也没给我。有人能告诉我我错过了什么吗？另外，我无法想象我支持在 for 循环搜索中查找哪个元素，您能否大致说明一下在这种情况下如何知道在 for 循环中指定什么作为条件？

Answer 1

有多种方法可以到达该元素。一种选择是依赖 a 标签，其中 href 包含 ria-money-transfer 部分，然后得到 following span element 包含率：

import re

from bs4 import BeautifulSoup
import requests

response = requests.get('http://www.compareremit.com')
soup = BeautifulSoup(response.content)

link = soup.find('div', class_='c_logo_box').find('a', href=re.compile(r'ria-money-transfer'))
print(link.img.get('alt'))

rate = link.find_next_sibling('span').text.split(' ')[-1]
print(rate)

打印：

RIA Money Transfer
61.24

Answer 2

您的代码在逻辑上不正确。您可以通过多种方式执行此操作，请尝试此代码

#!/usr/bin/python

import requests
import re
from bs4 import BeautifulSoup

r = requests.get('http://www.compareremit.com')
data = r.text

soup = BeautifulSoup(data)
for rate in soup.find_all('div',{"class":"c_logo_box"}):
    print rate.a.img['alt'] 
    print rate.span.text

Python 抓取 (Beautiful Soup) 以从中获取数据 HTML

Python scraping (Beautiful Soup) to obtain data from this HTML

html

python

beautifulsoup

html-parsing

web-scraping