In this chapter, we learned how to make a GUI in Python. We learned how to create all sorts of different widgets that let the GUI do interesting things, and we also learned how to react to events, such as mouse buttons being clicked.

In particular, we created a mapping program that lets us click on the map to mark points of interest and even add useful descriptions for the markers. We have the knowledge and skills to add many extra features to our program by continuing to add buttons and other widgets.

In the next chapter, we'll explore how we can create music with code.