如何提取美汤分页的最大结果数？

Question

我尝试选择分页部分，并希望提取最大结果2143的数量。

numbers = contents.find(name="div", attrs={"class": "pagination"})
print(numbers .attrs)
print(numbers )
print(numbers .get_text(' ', strip=True))

这段代码给了我这样的结果：

    {'class': ['pagination']}
    <div class="pagination"><span>Showing 1-30 of 2143</span><ul><li><div class="prev"></div></li><li><span class="disabled">1</span></li><li><a data-analytics='{"click_id":132,"module":1,"listing_page":2}' data-page="2" data-remote="true" href="/san-francisco-ca/dentists?page=2">2</a></li><li><a data-analytics='{"click_id":132,"module":1,"listing_page":3}' data-page="3" data-remote="true" href="/san-francisco-ca/dentists?page=3">3</a></li><li><a data-analytics='{"click_id":132,"module":1,"listing_page":4}' data-page="4" data-remote="true" href="/san-francisco-ca/dentists?page=4">4</a></li><li><a data-analytics='{"click_id":132,"module":1,"listing_page":5}' data-page="5" data-remote="true" href="/san-francisco-ca/dentists?page=5">5</a></li><li><a class="next ajax-page" data-analytics='{"click_id":132}' data-page="2" data-remote="true" href="/san-francisco-ca/dentists?page=2">Next</a></li></ul></div>
    Showing 1-30 of 2143 1 2 3 4 5 Next

如何仅提取2143：

Showing 1-30 of 2143 1 2 3 4 5 Next

Answer 1

选择您的标记更具体，一个选项列表使用css selectors链接条件-选择第一个直接<span> of <div>与类pagination，用空格拆分文本并获取列表的最后一个元素：

soup.select_one('div.pagination > span').text.split(' ')[-1]

示例

html = '''<div class="pagination"><span>Showing 1-30 of 2143</span><ul><li><div class="prev"></div></li><li><span class="disabled">1</span></li><li><a data-analytics='{"click_id":132,"module":1,"listing_page":2}' data-page="2" data-remote="true" href="/san-francisco-ca/dentists?page=2">2</a></li><li><a data-analytics='{"click_id":132,"module":1,"listing_page":3}' data-page="3" data-remote="true" href="/san-francisco-ca/dentists?page=3">3</a></li><li><a data-analytics='{"click_id":132,"module":1,"listing_page":4}' data-page="4" data-remote="true" href="/san-francisco-ca/dentists?page=4">4</a></li><li><a data-analytics='{"click_id":132,"module":1,"listing_page":5}' data-page="5" data-remote="true" href="/san-francisco-ca/dentists?page=5">5</a></li><li><a class="next ajax-page" data-analytics='{"click_id":132}' data-page="2" data-remote="true" href="/san-francisco-ca/dentists?page=2">Next</a></li></ul></div>'''

soup=BeautifulSoup(html,'lxml')

soup.select_one('div.pagination > span').text.split(' ')[-1]

输出

2143

Answer 2

与numbers.get_text不同，find "span“获取文本和rsplit 1，并接受第二个元素：

out = numbers.find('span').text.rsplit(' ', 1)[1]

输出：

'2143'