What is the Repository Pattern and How to Use it in Python?

The repository pattern helps separate business logic from data access code by providing a unified interface for interacting with different data sources. It enhances flexibility, maintainability, and decoupling in a system. This post includes a practical Python example using `sqlmodel` and demonstrates how to implement repository interfaces for SQLite and CSV storage backends. By using this pattern, you can easily swap data access implementations without changing the business logic, making your code easier to test and maintain.