The reason is in the dynamic Javascript that not been executed during HTML parsing. Everything is correct from the BeautifulSoup perspective - it parsed the data from the provided HTML file, but we want to get the same result as the browser renders.
It will not include any request to get information, just a render of a different HTML after the page load:Īnd the result is different from our expectation (except you've already found out what is going on there). To demonstrate the basic idea of a dynamic website, we can create a web page that contains dynamically rendered text. The whole content of this website is loaded as a plain HTML while the initial page load. In contrast to dynamic websites, we can observe static websites containing all the requested content on the page load.Ī great example of a static website is : Usually, dynamic websites use AJAX to load content dynamically, or even the whole site is based on a Single-Page Application (SPA) technology. Such an approach allows increasing page load speed and prevents reloading the same layout each time you'd like to open a new page. So the browser receives basic HTML with JS and then loads content using received Javascript code.
#PYTHON DOWNLOAD WEBPAGE UPDATE#
What is a dynamic website? #Ī dynamic website is a type of website that can update or load content after the initial HTML load.
Let's review several conventional techniques that allow data extraction from dynamic websites using Python. Still, on the other hand, it becomes harder to extract data from such web pages, as it requires the execution of internal Javascript in the page context while scraping. Internet extends fast and modern websites pretty often use dynamic content load mechanisms to provide the best user experience.
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