CyberJack100000/Banking-System-Simulation ? reverse-engineered prompt

Build me a simple Python banking system simulation that feels like a school project but is still clean and easy to run. I want users to be able to create accounts, check balances, deposit money, withdraw money, send money between accounts, and take out and repay basic loans. Keep the code organized in a few small modules so the different parts of the banking logic are separated, and make sure there is a main program I can run from the command line to try it out.

It does not need to be a real banking app, just a solid simulation that demonstrates the core flows clearly. Add some sample data or a simple menu so it is easy to test. If anything is unclear, make sensible choices and if you need to check current Python best practices, look up the latest docs online.