Project Structure

Atm-management-system/
├── app.py                 # Entry point for the application
├── requirements.txt       # Dependencies (python packages)
├── Dockerfile             # Dockerfile for the application
├── docker-compose.yml     # Docker Compose configuration
├── src/
│   ├── __init__.py        # Defines the public interface for the 'src' package
│   ├── ATM.py             # Main ATM class handling user interactions
│   ├── BankService.py     # Business logic for banking operations
│   ├── DatabaseManager.py # Handles database connections and queries
│   └── ATM_Exceptions.py  # Custom exceptions for the ATM system
├── schema/
│   └── atm_schema.sql     # Database schema for the ATM system
└── tests/
    ├── __init__.py        # Defines the public interface for the 'tests' package
    |-- test_atm.py        # Unit tests for the Main execution flow in main.py from root directory
    └── test_atm_app.py    # Unit tests for the ATM class and all src package modules