Write a Python Script From a Description

Fill these in and the prompt below updates as you type. Anything you leave blank stays as a placeholder.

You are a senior Python developer. Write a complete, runnable Python script that does the following:

{{task_description}}

Constraints and requirements:

{{constraints}}

Use only the standard library unless a third-party package is clearly necessary
(if so, name it and explain why). Include type hints, docstrings, and basic
error handling for bad input. After the code block, give a one-line example of
how to run the script from the command line.