Python BeautifulSoup网页爬取问题：section标签为何无内容？

Hey Rajat, I see the issue you're facing—let's break this down and get you that scorecard data you need.

The Root Problem #

When you use requests.get() to fetch the page, you're only grabbing the initial static HTML that the server sends right away. That empty <section> tag with style="display:none" is exactly what's in that raw response. The actual scorecard content you're looking for gets loaded dynamically by JavaScript after the page loads in a real browser. Since requests doesn't execute JavaScript, it never sees that fully rendered content.

Solution 1: Use Browser Automation (Selenium) #

This approach simulates a real browser, letting JavaScript run and render the full content before you scrape it. Here's how to implement it:

First, install Selenium and make sure you have the matching browser driver (e.g., ChromeDriver for Google Chrome):

pip install selenium

Then use this code:

from selenium import webdriver
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.by import By
from bs4 import BeautifulSoup

# Initialize Chrome browser (swap for Firefox/Edge driver if you prefer)
driver = webdriver.Chrome()
driver.get('https://www.iplt20.com/match/2018/20?tab=scorecard')

# Wait for JavaScript to render the scorecard content
try:
    # Wait until a key element inside the section is present (adjust timeout if needed)
    WebDriverWait(driver, 10).until(
        EC.presence_of_element_located((By.CSS_SELECTOR, '.scorecardContent .matchScorecard'))
    )
finally:
    # Grab the fully rendered page source
    page_source = driver.page_source
    driver.quit()

# Parse the rendered content with BeautifulSoup
soup = BeautifulSoup(page_source, 'html.parser')
scorecard_section = soup.find('section', {'class':'contentTab tab3 scorecardContent'})

# Now you can extract the actual scorecard data!
print(scorecard_section.prettify())

Solution 2: Fetch Data Directly from the API (Better & Faster) #

Most modern sites load dynamic content via background API calls. You can skip HTML parsing entirely by finding and calling the API that feeds the scorecard data:

1. Open the target page in Chrome/Firefox, press F12 to open DevTools
2. Go to the Network tab, filter for XHR/Fetch requests
3. Refresh the page, look for requests that return scorecard-related JSON data (check the "Preview" tab to confirm it's the right content)
4. Copy that API URL and use requests to fetch the data directly:

import requests

# Replace this with the actual API URL you found in DevTools
api_url = "https://api.iplt20.com/matches/2018/20/scorecard"
response = requests.get(api_url)
scorecard_data = response.json()

# Now you can work with structured JSON data directly, no messy HTML parsing
print(scorecard_data)

This method is more efficient than browser automation because it avoids loading the entire page and just grabs the exact data you need.

内容的提问来源于stack exchange，提问作者Rajat Gupta