Question

我正在尝试提取位于<table>标记上方和下方的HTML部分，例如，从下面的示例html中提取

sample_html = """
<html>
<title><b>Main Title</b></Title>
<b>more</b>
<b>stuff</b>
<b>in here!</b>
<table class="softwares" border="1" cellpadding="0" width="99%">
    <thead style="background-color: #ededed">
        <tr>
            <td colspan="5"><b>Windows</b></td>
        </tr>
    </thead>
    <tbody>
        <tr>
            <td><b>Type</b></td>
            <td><b>Issue</b></td>
            <td><b>Restart</b></td>
            <td><b>Severity</b></td>  
            <td><b>Impact</b></td>  
        </tr>
        <tr>
            <td>some item</td>
            <td><a href="some website">some website</a><br></td>
            <td>Yes<br></td>
            <td>Critical<br></td>
            <td>stuff<br></td>
        </tr>    
        <tr>
            <td>some item</td>
            <td><a href="some website">some website</a><br></td>
            <td>Yes<br></td>
            <td>Important<br></td>
            <td>stuff<br></td>    
        </tr>
    </tbody>
</table>
<b>AGAIN</b>
<b>more</b>
<b>stuff</b>
<b>down here!</b>
</html>
"""

我想获得类似的东西。

top_html = """
<html>
<title><b>Main Title</b></Title>
<b>more</b>
<b>stuff</b>
<b>in here!</b>
</html>
"""

bottom_html = """
<html>
<b>AGAIN</b>
<b>more</b>
<b>stuff</b>
<b>down here!</b>
</html>
"""

或者已经是文本格式，例如：

top_html = 'Main Title more stuff down here!'

bottom_html = 'AGAIN more stuff down here!'

因此，我已经能够从整个HTML中提取<table>部分并进行处理（我将行<tr>和列<td>分开，以便提取值我需要），并带有以下代码：

soup = BeautifulSoup(input_html, "html.parser")
table = soup.find('table')

Answer 1

此解决方案并未广泛使用BeautifulSoup，但可以使用。获取打开和关闭表标签的索引，提取前后的字符串。

soup = BeautifulSoup(sample_html, "html.parser")

def extract_top_and_bottom(soup):
    index_of_opening_tag = soup.index("<table")
    index_of_closing_tag = soup.index("</table>")

    top_html = soup[:index_of_opening_tag]
    bottom_html = soup[index_of_closing_tag::].replace("</table>", '')

    print(top_html)
    print(bottom_html)

extract_top_and_bottom(str(soup))

Answer 2

在表格html上分割html，然后提取文本

from  bs4 import BeautifulSoup as bs

sample_html = """
<html>
<title><b>Main Title</b></Title>
<b>more</b>
<b>stuff</b>
<b>in here!</b>
<table class="softwares" border="1" cellpadding="0" width="99%">
    <thead style="background-color: #ededed">
        <tr>
            <td colspan="5"><b>Windows</b></td>
        </tr>
    </thead>
    <tbody>
        <tr>
            <td><b>Type</b></td>
            <td><b>Issue</b></td>
            <td><b>Restart</b></td>
            <td><b>Severity</b></td>  
            <td><b>Impact</b></td>  
        </tr>
        <tr>
            <td>some item</td>
            <td><a href="some website">some website</a><br></td>
            <td>Yes<br></td>
            <td>Critical<br></td>
            <td>stuff<br></td>
        </tr>    
        <tr>
            <td>some item</td>
            <td><a href="some website">some website</a><br></td>
            <td>Yes<br></td>
            <td>Important<br></td>
            <td>stuff<br></td>    
        </tr>
    </tbody>
</table>
<b>AGAIN</b>
<b>more</b>
<b>stuff</b>
<b>down here!</b>
</html>
"""
soup = bs(sample_html, 'lxml')
results = str(soup).split(str(soup.select_one('table.softwares')))
top_text = bs(results[0], 'lxml').get_text().replace('\n',' ')
bottom_text = bs(results[1], 'lxml').get_text().replace('\n',' ')
print(top_text)
print(bottom_text)

从<table>标记外部提取HTML

2 个答案: