I don't think that's true. https://brython.info/static_tutorial/en/index.html https://brython.info/static_tutorial/en/index.html > In the <head> zone we load

I don't think that's true. https://brython.info/static_tutorial/en/index.html https://brython.info/static_tutorial/en/index.html > In the <head> zone we load the script brython.js : it is the Brython engine, the program that will find and execute the Python scripts included in the page. It looks like Brython works by embedding a Python interpreter into the page as Javascript. That's 5 MB if you include the standard library - almost 800 KB for just the interpreter. Not to mention the computational overhead of running an interpreter in an interpreter.