This Python 3 Tkinter tutorial builds a desktop calculator while explaining widgets, button callbacks and safe arithmetic handling. Python GUI Calculator The GUI calculator that we will build using Python look as follows. Requirement for GUI Calculator The only requirement is Python 3 and Tkinter package. It is one of the most popular Python library for creating GUI application. Most of the latest version of Python3 comes with Tkinter. To… Read More »Build a Python Tkinter Calculator: GUI, Buttons and Safety