For Web pages that the final contents are rendered by JavaScript, using requests will not be able to get the final web page. This is a code snip using Selenium to do the job.
from selenium import webdriver
import chromedriver_autoinstaller
url='URL of web page rendered with JavaScript'
driver_directory = chromedriver_autoinstaller.install() ## This needs to run as local admin
options = webdriver.ChromeOptions()
## hide the web browser in background
options.add_argument("headless")
browser = webdriver.Chrome(driver_directory, options=options)
browser.get(url)
## Wait for a few seconds for JAVAScript to finish rendering
time.sleep(5)
## Find the elements you are interested in and process them
belement = browser.find_element_by_xpath('/html/body')
browser.quit()
