Python BeautifulSoup 找不到标签

Question

我正在尝试使用 BeautifulSoup 模块获取数据，但我无法从网站获取我想要的标签，返回无，我也不想使用Selenium

import requests
from bs4 import BeautifulSoup as bs



site = "https://www.worldometers.info/coronavirus/#countries"

r = requests.get(site)

soup = bs(r.text,"html.parser")

ct = soup.find("table",id="main_table_countries_today")

ct2 = ct.find("tr",class_="total_row_world odd")
print(ct2)

Answer 1

ct中没有 class 作为total_row_world odd ，而是 class total_row_world ：

import requests
from bs4 import BeautifulSoup as bs

site = "https://www.worldometers.info/coronavirus/#countries"
r = requests.get(site)
soup = bs(r.text,"html.parser")

ct = soup.find("table",id="main_table_countries_today")
ct2 = ct.find("tr",class_="total_row_world")
print(ct2)

编辑：

经过更深入的调查，您似乎需要像selenium这样的工具来获取您正在寻找的动态数据：

from bs4 import BeautifulSoup
import urllib.request

from selenium import webdriver
from webdriver_manager.firefox import GeckoDriverManager

driver = webdriver.Firefox(executable_path=GeckoDriverManager().install())
site = "https://www.worldometers.info/coronavirus/#countries"
driver.get(site)

content = driver.page_source
soup = BeautifulSoup(content, 'html.parser')

ct = soup.find("table",id="main_table_countries_today")
ct2 = ct.find("tr",class_="total_row_world odd")
print(ct2)

OUTPUT：

<tr class="total_row_world odd" role="row">
<td></td>
<td style="text-align:left;">World</td>
<td class="sorting_1">24,858,356</td>
<td>+242,396</td>
<td>839,702</td>
<td>+4,736</td>
<td>17,224,364</td>
<td>6,794,290</td>
<td>61,529</td>
<td>3,189</td>
<td>107.7</td>
<td></td>
<td></td>
<td></td>
<td data-continent="all" style="display:none">All</td>
</tr>