在带有美丽汤的 HTML 表格中查找信息

Question

我正在尝试从html表中提取信息（在此示例页面中找到 https://www.detrasdelafachada.com/house-for-sale-marianao-havana-cuba/dcyktckvwjxhpl9）：

<div class="row">
    <div class="col-label">
        Type of property:
    </div>
    <div class="col-datos">
        Apartment </div>
</div>
<div class="row">
    <div class="col-label">
        Building style:
    </div>
    <div class="col-datos">
        50 year </div>
</div>
<div class="row">
    <div class="col-label precio">
        Sale price:
    </div>
    <div class="col-datos precio">
        12 000 CUC </div>
</div>
<div class="row">
    <div class="col-label">
        Rooms:
    </div>
    <div class="col-datos">
        1 </div>
</div>
<div class="row">
    <div class="col-label">
        Bathrooms:
    </div>
    <div class="col-datos">
        1 </div>
</div>
<div class="row">
    <div class="col-label">
        Kitchens:
    </div>
    <div class="col-datos">
        1 </div>
</div>
<div class="row">
    <div class="col-label">
        Surface:
    </div>
    <div class="col-datos">
        38 mts2 </div>
</div>
<div class="row">
    <div class="col-label">
        Year of construction:
    </div>
    <div class="col-datos">
        1945 </div>
</div>
<div class="row">
    <div class="col-label">
        Building style:
    </div>
    <div class="col-datos">
        50 year </div>
</div>
<div class="row">
    <div class="col-label">
        Construction type:
    </div>
    <div class="col-datos">
        Masonry and plate </div>
</div>
<div class="row">
    <div class="col-label">
        Home conditions:
    </div>
    <div class="col-datos">
        Good </div>
</div>
<div class="row">
    <div class="col-label">
        Other peculiarities:
    </div>
</div>
<div class="row">

使用美丽的汤，我怎样才能找到"建筑风格："（以及其他条目）的价值？

我的问题是我直接找到该类，因为表中的所有条目都具有相同的div 类名。

Answer 1

您可以

遍历每一行div并找到嵌套的div值：

from bs4 import BeautifulSoup as soup
import re
d = soup(content, 'html.parser')
results = [[re.sub('s{2,}|n+', '', i.text) for i in b.find_all('div')] for b in d.find_all('div', {'class':'row'})]

输出：

[['Type of property:', 'Apartment '], ['Building style:', '50 year '], ['Sale price:', '12 000 CUC '], ['Rooms:', '1 '], ['Bathrooms:', '1 '], ['Kitchens:', '1 '], ['Surface:', '38 mts2 '], ['Year of construction:', '1945 '], ['Building style:', '50 year '], ['Construction type:', 'Masonry and plate '], ['Home conditions:', 'Good '], ['Other peculiarities:'], []]

Answer 2

例如，如果您知道您特别想要查找字符串"建筑样式："，则可以捕获.next_sibling的文本。 或者只是使用next：

>>> from bs4 import BeautifulSoup
>>> html = "<c><div>hello</div> <div>hi</div></c>"
>>> soup = BeautifulSoup(html, 'html.parser')
>>> print(soup.find(string="hello").find_next('div').contents[0])
hi

如果你想要所有这些，你可以使用 .find_all 来获取类"row"的所有div 标签，然后抓取每个的子标签。

data = []
soup = BeautifulSoup(html, 'html.parser')
for row in soup.find_all('div', class_="row"):
    rowdata = [ c.text.strip() for c in row.find_all('div')]
    data.append(rowdata)
print(data)
# Outputs the nested list:
#   [u'Type of property:', u'Apartment'], [u'Building style:', u'50 year'], etc ]