Python的Beautifulsoup不能从标签内容有隐藏属性

Question

<a id="ember1601" role="button" href="/carsearch/book?piid=AQAQAQRRg2INmYAyjZmAMwmKOGATj2qoYBQANIAVCeAZgB6fUEsAED&amp;totalPriceShown=71.66&amp;searchKey=-575257062&amp;offerQualifiers=GreatDeal" data-book-button="book-EY-EC-Car" target="_self" class="ember-view btn btn-secondary btn-action"><span class="btn-label"> 
    <span aria-hidden="true"> 
     <span class="visuallyhidden"> 
      Reserve Item 1, Economy from Economy Rent a Car Rental Company at $72 total 
    </span>Reserve 
    </span> 

</span> 
</a> 

您好，我是新来的蟒蛇 我无法得到的价格& 72下<span class="visuallyhidden">，还我怎样才能在标签<a>的href链接第一行，请帮助，顺便说一句，谢谢 ，我使用美丽的库，如果其他库可以帮助，请让我知道。感谢

Answer 1

In [9]: soup = BeautifulSoup(html, 'lxml') # html is the code you posted 

In [10]: soup.find("span", class_="visuallyhidden").text 
Out[10]: '\n   Reserve Item 1, Economy from Economy Rent a Car Rental Company at $72 total\n ' 

In [11]: soup.a["href"] 
Out[11]: '/carsearch/book?piid=AQAQAQRRg2INmYAyjZmAMwmKOGATj2qoYBQANIAVCeAZgB6fUEsAED&totalPriceShown=71.66&searchKey=-575257062&offerQualifiers=GreatDeal' 

如果你需要从字符串中提取一部分文本，你需要使用正则表达式：

In [12]: text = soup.find("span", class_="visuallyhidden").text 

In [15]: re.search(r'\$\d+', text).group() 
Out[15]: '$72' 

Answer 2

beautifulsoup能够通过它的类名找到一个标签一样，

bs_obj = BeautifulSoup(html) 
tag = bs_obj.find("span", class_ = "visuallyhidden") # string "class" is reserved for python itself,so bs use string "class_" 
s = tag.string # that will get string inside the span 
... 
# you can get "$72" by regx 

另外，BS允许您通过 “[]” operator.Just访问标签的ATTR像

print(tag['href']) 

您可以在线查看bs doc中的一些简单示例。