How to process javascript?

Question

Python

Good day
While studying the requests library, I came across a problem: you can’t process js on the page.
Let’s say there is a captcha on the page, you won’t be able to get a form with it using requests and bs - instead of the form it will be “You don’t have JS enabled, enable it in the browser settings.. .."
Searching on the Internet, I came across selenium, but it opens browser windows, which I do not need at all. I
just need to load js without resorting to using a browser
. Tell me, what are your thoughts on this

Answer 1

• An easy way: PhantomJS instead of a browser for the same selenium.
  
• The Way of Real Men: Read js (just get the idea) and rewrite it in python with regular requests (aiohttp is better). And no browsers and seleniums.