python - 使用漂亮的汤在python中进行网络抓取:AttributeError:'NoneType'对象没有属性'text'
问题描述
我正在使用 html 请求和漂亮的汤(我是新手)开发一个网络爬虫。对于 1 个网页(https://www.superdrug.com/Make-Up/Face/Primer/Face-Primer/Max-Factor-False-Lash-Effect-Max-Primer/p/788724)我试图刮产品的价格。HTML 是:
<span class="pricing__now" itemprop="price">8.99</span>
我尝试过使用soup.find 和soup.find_all:
r = session.get(link)
r.html.render(sleep=3, timeout=30)
soup = BeautifulSoup(r.content, 'lxml')
price = soup.find('span', itemprop="price").text
r = session.get(link)
r.html.render(sleep=3, timeout=30)
soup = BeautifulSoup(r.content, 'lxml')
price = soup.find_all('span', itemprop="price").text
和 r.html.find:
r = session.get(link)
r.html.render(sleep=6, timeout=30)
price = r.html.find('body > div.pdp-container > div.content-wrapper.pdp > div > div > div.pdp__purchase-options > div.pricing > span:nth-child(2)', first=True).text
None
并返回空列表,或者一个AttributeError: 'NoneType' object has no attribute 'text'
. 我不确定为什么我无法获取此信息。任何帮助,将不胜感激。
解决方案
您可以从页面中嵌入的 Json 数据中获取价格。例如:
import json
import requests
from bs4 import BeautifulSoup
url = "https://www.superdrug.com/Make-Up/Face/Primer/Face-Primer/Max-Factor-False-Lash-Effect-Max-Primer/p/788724"
headers = {
"User-Agent": "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:87.0) Gecko/20100101 Firefox/87.0"
}
soup = BeautifulSoup(requests.get(url, headers=headers).content, "html.parser")
data = json.loads(soup.select('[type="application/ld+json"]')[1].contents[0])
# uncomment this to print all data:
# print(json.dumps(data, indent=4))
print(data["offers"]["price"])
印刷:
8.99