span元素中的小文本过滤

Question

我正在寻找从谷歌搜索结果过滤文本（描述）。它包含在一个元素中。 我的工作如下：

result_div.find('span', attrs={'class': 'VwiC3b yXK7lf MUxGbd yDYNvb lyLwlc'})

其中result_div = soup.find_all('div', attrs={'class': 'g'})

但它返回一个空值

我怎样才能得到这个

我试过的代码：

driver.get('https://www.google.com')
s = driver.find_element_by_name('q')
s.send_keys("stackoverflow")
s.submit()
soup = BeautifulSoup(driver.page_source,'lxml')
result_div.find('span', attrs={'class': 'VwiC3b yXK7lf MUxGbd yDYNvb lyLwlc'})

Answer 1

有多个名为g的类，但并非所有类都包含嵌套类VwiC3b yXK7lf MUxGbd yDYNvb lyLwlc。 由于您只需要描述，只需直接搜索类VwiC3b yXK7lf MUxGbd yDYNvb lyLwlc：

from selenium import webdriver
from bs4 import BeautifulSoup

driver = webdriver.Chrome()

driver.get("https://www.google.com")
s = driver.find_element_by_name("q")
s.send_keys("stackoverflow")
s.submit()
soup = BeautifulSoup(driver.page_source, "lxml")


for tag in soup.find_all("div", class_="VwiC3b yXK7lf MUxGbd yDYNvb lyLwlc"):
    print(tag.text)

输出：

Stack Overflow is the largest, most trusted online community for developers to learn, share​ ​their programming ​knowledge, and build their careers.
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