At the core of Python programming is a thorough knowledge of Python 3 versions. In What's New in Python 3.7, you will learn how to use all of Python 3.7's new features. First, you will learn data classes. Next, you will explore the new breakpoint functionality. Finally, you will discover how to test the performance of your applications and benefit from Python 3.7's speed improvements. When you are finished with this course, you will have a foundational knowledge of Python 3.7 that will help you as you move forward to develop Python 3 applications.