In the Intermediate Python course on Udacity, you will delve into advanced topics to enhance your Python skills. You will start by mastering data description methods and then explore functions and functional design to develop problem-solving strategies. Next, you will delve into objects and object-based design, understanding how class objects and instance objects are interconnected. Finally, you will learn how to integrate Python with external files, enabling you to create comprehensive codebases capable of performing complex calculations or addressing critical issues. Additionally, the course covers writing, structuring, and extending code to support large-scale system development, utilizing open source libraries to add advanced functionality, and packaging code into your own libraries. By applying Object Oriented Programming principles, you will ensure that your code remains modular, clear, and understandable. These skills are essential for building maintainable and efficient codebases that can grow to tens of thousands of lines.