The goal here is to create a client JS script that will be run in the debugged application browser. It should give user an option to somehow choose HTML element in the debugged application and send ...

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 ...

Python code is enclosed in the script tag with a type="py" attribute. Note that the code should be formatted according to Python’s conventions for indentation, or it won’t run properly.