import requests
URL = "https://www.amazon.com/TRESemm%C3%A9-Botanique-Shampoo-Nourish-Replenish/dp/B0199WNJE8/ref=sxin_14_pa_sp_search_thematic_sspa?content-id=amzn1.sym.a15c61b7-4b93-404d-bb70-88600dfb718d%3Aamzn1.sym.a15c61b7-4b93-404d-bb70-88600dfb718d&crid=2HG5WSUDCJBMZ&cv_ct_cx=hair%2Btresemme&keywords=hair%2Btresemme&pd_rd_i=B0199WNJE8&pd_rd_r=28d72361-7f35-4b1a-be43-98e7103da70c&pd_rd_w=6UL4P&pd_rd_wg=JtUqB&pf_rd_p=a15c61b7-4b93-404d-bb70-88600dfb718d&pf_rd_r=DFPZNAG391M5JS55R6HP&qid=1660432925&sprefix=hair%2Btresemme%2Caps%2C116&sr=1-3-a73d1c8c-2fd2-4f19-aa41-2df022bcb241-spons&smid=A3DEFW12560V8M&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExQlM3VFpGRVM5Tk8wJmVuY3J5cHRlZElkPUEwNjE5MjQwM01JV0FNN1pOMlRHSSZlbmNyeXB0ZWRBZElkPUEwNTA1MDQyMlQ5RjhRQUxIWEdaUiZ3aWRnZXROYW1lPXNwX3NlYXJjaF90aGVtYXRpYyZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU&th=1"
webpage = requests.get(URL, headers=HEADERS)
from bs4 import BeautifulSoup
soup = BeautifulSoup(webpage.content, "lxml")
# Outer Tag Object
title = soup.find("span", attrs={"class":'a-list-item'}).text.strip()
print(title)
这是我的代码：
我正在尝试抓取产品详细信息页面的畅销书排名和子类别畅销书排名，如果你向下滚动页面，你会看到它。但我只得到美容个人护理类别。我需要军衔。请帮忙。
选择更具体的元素，例如css selectors，重点是畅销书链接：
soup.select_one('#detailBulletsWrapper_feature_div a[href*="bestsellers"]').previous.strip().split()[0]
另一种选择是在包含id详细信息的部分中选择包含畅销书的span：
soup.select_one('#detailBulletsWrapper_feature_div span:-soup-contains("Best Seller")').contents[2].strip().split()[0]
请注意，您应该始终检查元素是否可用
示例
import requests
from bs4 import BeautifulSoup
headers = {'User-Agent':'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36',
'Accept-Language': 'en-US, en;q=0.5'}
URL = "https://www.amazon.com/TRESemm%C3%A9-Botanique-Shampoo-Nourish-Replenish/dp/B0199WNJE8/ref=sxin_14_pa_sp_search_thematic_sspa?content-id=amzn1.sym.a15c61b7-4b93-404d-bb70-88600dfb718d%3Aamzn1.sym.a15c61b7-4b93-404d-bb70-88600dfb718d&crid=2HG5WSUDCJBMZ&cv_ct_cx=hair%2Btresemme&keywords=hair%2Btresemme&pd_rd_i=B0199WNJE8&pd_rd_r=28d72361-7f35-4b1a-be43-98e7103da70c&pd_rd_w=6UL4P&pd_rd_wg=JtUqB&pf_rd_p=a15c61b7-4b93-404d-bb70-88600dfb718d&pf_rd_r=DFPZNAG391M5JS55R6HP&qid=1660432925&sprefix=hair%2Btresemme%2Caps%2C116&sr=1-3-a73d1c8c-2fd2-4f19-aa41-2df022bcb241-spons&smid=A3DEFW12560V8M&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExQlM3VFpGRVM5Tk8wJmVuY3J5cHRlZElkPUEwNjE5MjQwM01JV0FNN1pOMlRHSSZlbmNyeXB0ZWRBZElkPUEwNTA1MDQyMlQ5RjhRQUxIWEdaUiZ3aWRnZXROYW1lPXNwX3NlYXJjaF90aGVtYXRpYyZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU&th=1"
webpage = requests.get(URL, headers=headers)
soup = BeautifulSoup(webpage.content)
soup.select_one('#detailBulletsWrapper_feature_div span:-soup-contains("Best Seller")').contents[2].strip().split()[0]
输出
#224,708