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.

Today, macOS doesn’t bundle Python by default, so one has to install Python in some form no matter what. The most common and battle-tested way to do this is through pyenv.

Editable installs let you do exactly this. To install a Python package in editable mode, all you need to do is use the -e flag, and pass the path to the package’s directory: ...