In addition to executing code embedded in HTML, it's also possible to add a code editor directly into an HTML page using the py-repl tag so that you can input code and execute it, as shown below ...

PyScript lets you run Python scripts right in the browser, side by side with JavaScript, with two-way interaction between your code and the web page. Created by Anaconda and launched in April 2022 ...

Nashorn will define a new command-line tool, jjs, for evaluating JavaScript code in “shebang” scripts, here documents, and edit strings. Performance and memory usage of Nashorn applications ...