I’d like a straightforward Python script that lets me perform common financial calculations from the command line. The immediate goal is a single-file tool that can: • Handle loan/EMI calculations (principal, rate, term, monthly payment) • Compute compound interest and future value for lump-sum and periodic deposits • Return clear, well-formatted results to the console Please keep the code clean, fully commented, and easy to extend—I’m still learning and want to understand every step. No external libraries are necessary; stick to Python’s standard library so the script runs out of the box. Deliverable: – A .py file ready to execute with sample usage examples included in the docstring. If you can finish quickly and walk me through the logic, we can discuss expanding the tool later.