今回は、Pythonに標準でインストールされているGUIライブラリTkinterを利用して、画面に図形を描画してみよう。 Tkinterとは？

The Tkinter GUI and its component elements are available for immediate use in Python by importing the "Tkinter" module. One of these components is the "listbox" widget.

We've built a few of those (like the simple To-Do List using Python). For this one, I wanted to use some GUI, so I decided we'll be importing the Tkinter library to have some usable UI elements.