Structuring Reusable Python Code

Organize related functions into a Python module (.py file) and import them into other scripts.

Use the `if __name__ == '__main__'` guard to make a module both importable and independently runnable.

Structure a project directory with clear separation of concerns (e.g., data, src, reports).

Make scripts configurable from the command line using `argparse`.

Manage settings and sensitive information using external configuration files (e.g., YAML).