python - BeautifulSoup 找到一个属性中包含空格的 html 元素

Question

如何使用BeautifulSoup查找属性中包含空格的html元素

<h1 class='td p1'>
    title that i want
</h1>
<h1 class='td p2'>
    title that i don't want
</h1>
<h1 class='p1'>
    title that i don't want
</h1>

我想知道如何使用soup.find找到 title that i want 。
因为beautifulsoup考虑 title 'that i want' 的属性 attrs像这样:{'class': ['td', 'p1']}.<br>

但不是这样的:{'class': ['td p1']}

Answer 1

注意 不同的方法，但都有共同点来显式选择类。

查找()

soup.find('h1', attrs={'class':'td p1'})

select_one()

soup.select_one('h1.td.p1')

示例

from bs4 import BeautifulSoup
data="""
<h1 class='td p1'>
    title that i want
</h1>
<h1 class='td p2'>
    title that i don't want
</h1>
<h1 class='p1'>
    title that i don't want
</h1>
"""
soup=BeautifulSoup(data,"html.parser")

title = soup.select_one('h1.td.p1')

print(title)

输出

<h1 class="td p1">
    title that i want
</h1>