BeautifulSoup 找不到具有特定 class 的 div

Question

因此，在某些背景下，我一直在尝试学习网络抓取，以便为涉及 CNN 的机器学习项目获取一些图像。我一直在尝试从网站上抓取一些图像（HTML 代码在左边，我的代码在右边）但没有成功；我的代码最终 printing/returning 是一个空列表。我做错了什么吗？

为了它的价值，我尝试找到其他 div 标签，这些标签有 'id' 而不是 'class' 并且确实有效，但由于某种原因它找不到我正在寻找的那些。

编辑：

import requests
import urllib3
from bs4 import BeautifulSoup

http = urllib3.PoolManager()
url = 'https://www.grailed.com/shop/EkpEBRw4rw'

response = http.request('GET', url)
soup = BeautifulSoup(response.data, 'html.parser')

img_div = soup.findAll('div', {'class': "listing-cover-photo "})
print(img_div)

编辑 2：

from bs4 import BeautifulSoup
from selenium import webdriver

url = 'https://www.grailed.com/shop/EkpEBRw4rw'
driver = webdriver.Chrome(executable_path='chromedriver.exe')
driver.get(url)
soup = BeautifulSoup(driver.page_source, 'html.parser')

listing = soup.select('.listing-cover-photo ')
for item in listing:
    print(item.select('img'))

输出：

[<img alt="Off-White Off White Caravaggio Hoodie" src="https://process.fs.grailed.com/AJdAgnqCST4iPtnUxiGtTz/cache=expiry:max/rotate=deg:exif/resize=width:480,height:640,fit:crop/output=format:webp,quality:70/compress/https://cdn.fs.grailed.com/api/file/yX8vvvBsTaugadX0jssT"/>]
(...a few more of these...)
[<img alt="Off-White Off-White Arrows Hoodie Black" src="https://process.fs.grailed.com/AJdAgnqCST4iPtnUxiGtTz/cache=expiry:max/rotate=deg:exif/resize=width:480,height:640,fit:crop/output=format:webp,quality:70/compress/https://cdn.fs.grailed.com/api/file/9CMvJoQIRaqgtK0u9ov0"/>]
[]
[]
[]
[]
(...many more empty lists...)

Answer 1

看起来网站正在使用 JavaScript.Try 使用 Selenium 和 beautiful soup 加载数据。

from bs4 import BeautifulSoup
from selenium import webdriver

url = "https://www.grailed.com/shop/EkpEBRw4rw"
browser = webdriver.Chrome(executable_path="/path/to/chromedriver.exe")
browser.get(url)
soup = BeautifulSoup(browser.page_source,"html.parser")
items=soup.select(".listing-cover-photo ")
print(items)

BeautifulSoup 找不到具有特定 class 的 div

BeautifulSoup can't find div with specific class

html

python

beautifulsoup

web-scraping

urllib3