Backwards-Compatible APIs in Python

Ever updated a function or a class in your Python project, only to find it breaks other parts of your application? Maintaining compatibility is a critical skill for any developer building reliable and professional software. This course provides a practical foundation in designing APIs that can change over time without disrupting existing users. You'll learn strategies to add new features, refactor internals, and deprecate old patterns gracefully, ensuring your codebase remains robust and maintainable. What you'll learn: - Understand the core principles of API stability and common versioning strategies. - Use Python properties and descriptors to refactor class attributes without breaking client code. - Apply techniques for evolving function signatures using default arguments and flexible keyword arguments. - Design data structures and payloads that can be extended in the future without causing errors. - Practice creating clear deprecation warnings to guide users towards newer API patterns. - Explore how data classes and type hints help create more explicit and maintainable APIs from the start. The course begins with the fundamental concepts of API contracts and compatibility. You will then progress through practical, text-based examples, applying techniques to functions, classes, and data structures to build resilient Python applications. This course is designed for developers with a basic understanding of Python. No prior experience in API design is required. Start building more professional and resilient Python applications today.