从python的html中提取2条信息

我需要帮助了解如何提取Grab和数据后面的数字-b。在完整未修改的网页中有许多<tr>，我需要在</a>之前使用“Need”进行过滤。我一直试图用美丽的汤做到这一点，虽然它看起来像lxml可能会更好地工作。我可以得到所有<tr>或只有< a>...< /a>行包含需要，但不只是<tr> s包含需要在该<a>行。从python的html中提取2条信息

<tr > 
    <td>3</td> 
    <td><a href="/local/app">Leave</a></td><td><a href="https://www.leave.com/" target="_blank">Useless</a></td> 
    <td class="text-right"> <span class="float2" data-a="24608000.0" data-b="518" data-n="818">Garbage</span></td> 
    <td class="text-right"> <span class="Float" data-a="3019" data-b="0.0635664" data-n="283">Garbage2</span></td> 
    <td class="text-right">7.38%</td> 
    <td class="text-right " >Recently</td> 
</tr> 

<tr > 
    <td>4</td> 
    <td><a href="/local">Grab</a></td><td><a href="https://grab.com" target="_blank">Need</a></td> 
    <td class="text-right"> <span class="bloat2" data="22435000.0" data-b="512" data-n="74491.2">More junk</span></td> 
    <td class="text-right"> <span class="bloat" data-a="301.177" data-b="35.848" data-n="0.5848">More junk2</span></td> 
    <td class="text-right">Some more</td> 
    <td class="text-right " >Recently</td> 
</tr>

感谢您的帮助！

来源

2017-10-11 Jesse Richardson

from bs4 import BeautifulSoup 


data = '''<tr> 
<td>3</td> 
<td><a href="/local/app">Leave</a></td><td><a href="https://www.leave.com/" target="_blank">Useless</a></td> 
<td class="text-right"> <span class="float2" data-a="24608000.0" data-b="518" data-n="818">Garbage</span></td> 
<td class="text-right"> <span class="Float" data-a="3019" data-b="0.0635664" data-n="283">Garbage2</span></td> 
<td class="text-right">7.38%</td> 
<td class="text-right " >Recently</td> 
</tr> 

<tr> 
<td>4</td> 
<td><a href="/local">Grab</a></td><td><a href="https://grab.com" target="_blank">Need</a></td> 
<td class="text-right"> <span class="bloat2" data="22435000.0" data-b="512" data-n="74491.2">More junk</span></td> 
<td class="text-right"> <span class="bloat" data-a="301.177" data-b="35.848" data-n="0.5848">More junk2</span></td> 
<td class="text-right">Some more</td> 
<td class="text-right " >Recently</td> 
</tr> 
''' 

soup = BeautifulSoup(data) 
print(soup.findAll('a',{"href":"/local" })[0].text) 
for a in soup.findAll('span',{"class":["bloat","bloat2"]}): 
    print(a['data-b'])

来源

2017-10-11 10:50:28 Linda

从python的html中提取2条信息

回答

相关问题