What is GUI and IDLE?

Answer 1

IDLE (Integrated development enviroment) is the GUI (graphical user interface, which allows the user to interact with the device) for python and at the same time it's the easiest way to program with python.

Answer 2

GUI(graphical user interface) is an interface between the computer and the user that allow users to interact with the application or program to make it more interactive and easier to use,so IDLE is a GUI interface of Python that allow you to write our code in more interactive and easier way(by coloring the right keywords and make a list of suggestion of them while you are writing...),you can compare the interpreter console with the IDLE to know much more of its properties.