I've been building web scrapers for years. BeautifulSoup, Scrapy, Selenium — I've used them all. But last month I hit a wall. A client needed me to extract product data from a site that changed its HTML structure every few days. One week the price was in a <span class="price">, the next it was inside a <div> with a random ID. My scraper kept breaking, and I was spending more time fixing selectors than actually getting data.
The Problem
The site was a dynamic e-commerce platform. It used JavaScript to render content, and the developers seemed to enjoy shuffling class names. I tried the usual suspects:
BeautifulSoup + requests: Failed because the content was loaded via JS.
Selenium: Worked, but was slow and brittle. Every layout change required updating XPaths.
