无法加载 <tbody>，python 表

Question

我正在尝试在网站上抓取表格。问题是html代码中没有<tbody>。我厌倦了请求和硒，但总是相同的结果。有人知道吗？

这是代码（带有请求）网站：https://bscscan.com/token/0xAdeaE50E0097fBf8139Bdff45e7ed00de4b14170#balances

from urllib.request import Request, urlopen
import bs4



link="https://bscscan.com/token/0xAdeaE50E0097fBf8139Bdff45e7ed00de4b14170#balances"


req = Request(link, headers={'User-Agent': 'Mozilla/5.0'})
webpage = urlopen(req).read()

soup = bs4.BeautifulSoup(webpage,"html.parser" )
print(soup)

这是硒：

import time
import bs4
from selenium import webdriver
from webdriver_manager.microsoft import EdgeChromiumDriverManager
from selenium.webdriver.chrome.service import Service
from selenium.webdriver.common.by import By
driver = webdriver.Edge(service=Service(EdgeChromiumDriverManager().install()))
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

driver.get("https://bscscan.com/token/0xAdeaE50E0097fBf8139Bdff45e7ed00de4b14170#balances")
time.sleep(7)

html=driver.page_source
soup=bs4.BeautifulSoup(html,"lxml" )
print(soup)


WebDriverWait(driver, 20).until(EC.visibility_of_element_located((By.CSS_SELECTOR, ".table > tbody:nth-child(2)")))
print(driver.page_source)

Answer 1

您尝试访问的表位于 iframe 中。您需要切换到该 iframe 才能访问该元素：

import time
import bs4
from selenium import webdriver
from webdriver_manager.microsoft import EdgeChromiumDriverManager
from selenium.webdriver.chrome.service import Service
from selenium.webdriver.common.by import By
driver = webdriver.Edge(service=Service(EdgeChromiumDriverManager().install()))
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

driver.get("https://bscscan.com/token/0xAdeaE50E0097fBf8139Bdff45e7ed00de4b14170#balances")
time.sleep(7)

html=driver.page_source
soup=bs4.BeautifulSoup(html,"lxml" )
print(soup)

WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it((By.CSS_SELECTOR,"iframe#tokeholdersiframe")))

WebDriverWait(driver, 20).until(EC.visibility_of_element_located((By.CSS_SELECTOR, ".table > tbody:nth-child(2)")))
print(driver.page_source)

完成后，您必须使用

切换回默认内容

driver.switch_to.default_content()