Python Programming Challenge: Grade to GPA Converter

How do you turn a set of letter grades into a precise GPA? Solving this common programming challenge is the perfect way to transition from basic syntax to writing professional, production-ready code. In this text-based course, you will learn how to design, write, and refine a robust Python function that handles grade conversions. You will start with foundational concepts like conditional statements, progress to efficient dictionary lookups, and apply modern coding standards to make your solution clean and maintainable. What you'll learn: - Understand the core mathematical and logical steps of GPA conversion - Implement clean conditional logic and transition to efficient dictionary mappings - Apply modern Python type hints to make your functions self-documenting and robust - Validate user inputs and handle unexpected errors gracefully - Write basic test assertions to verify your code works under all conditions - Refactor your code for maximum readability and performance. You will start with the basic logic behind academic grading systems before writing your first solution. Step-by-step, you will analyze your code, identify edge cases, and refactor it using industry-standard Python practices. This course is designed for beginner programmers who know basic Python syntax and want to build practical problem-solving skills. No advanced programming experience is required. Start reading today to sharpen your coding logic and build cleaner programs.