Python 从span标记获取文本时返回空列表（Web抓取）

我正在尝试从URL获取产品价格和名称

当我检查HTML元素时，产品的价格在带有类名的

c13VH6

的

span

标记下

但是，我得到一个空字符串

下面是我的代码

import requests

from bs4 import BeautifulSoup

headers = {'User-Agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64) 
AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3'}


html_text=requests.get('https://www.daraz.com.np/televisions/? 
spm=a2a0e.11779170.cate_3.1.287d2d2bmERvcc',headers=headers).text

soup=BeautifulSoup(html_text, 'lxml')
#soup = BeautifulSoup(html_text, 'html5lib')

string1=soup.find('span',class_='c13VH6')
print(soup.find('span', class_='c13VH6'))
print(string1)

---

该网站是动态加载的，因此

请求

模块不支持它。但是，数据以JSON格式嵌入到网站上，您可以使用内置（regex）模块查找数据，并将其转换为Python字典（

dict）

，并使用内置模块访问

键

/

值

例如，要打印所有产品名称和价格：

import json
import re
import requests
from bs4 import BeautifulSoup


headers = {
    "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3"
}
url = "https://www.daraz.com.np/televisions/?spm=a2a0e.11779170.cate_3.1.287d2d2bmERvcc"
soup = BeautifulSoup(requests.get(url, headers=headers).content, "lxml")

json_data = json.loads(re.search("window\.pageData=({.*})", str(soup)).group(1))

# To view all the JSON data:
# print(json.dumps(json_data, indent=3))

for data in json_data["mods"]["listItems"]:
    print(data["name"])
    print(data["priceShow"].split()[1])
    print("-" * 80)

输出：

SONY  Klv-32W602D 32 Class Hdr Led Smart Tv - (Black)"
59,500
--------------------------------------------------------------------------------
SONY  Bravia Klv32R302E 32" Hd Led Tv
48,000
--------------------------------------------------------------------------------
Samsung  Ua49N5300Arshe 49 Inch Full Hd Smart Led Tv - Black
87,290
--------------------------------------------------------------------------------
X96 Mini, Android Box, Make Your Any TV Smart & 4K
4,200
--------------------------------------------------------------------------------
Sansui 43S803A 43 Inch Screen 1080P Led Tv
50,369
--------------------------------------------------------------------------------
Samsung  Ua49Nu7100Rshe 49 Inch 4K Ultra Hd Smart Led Tv - Black
128,690
--------------------------------------------------------------------------------
...
...

---

HTML中没有

class=“c13VH6”

。您要查找的元素是通过JavaScript动态添加的。您需要使用类似SeleniumWebDriver的东西。