Create a Calculator in Python! (Tkinter / Python GUI)

A screenshot of the code in action

A while ago I wrote a Calculator GUI in python 3. The code should run native using the Tkinter library. I tried to make a nice looking GUI (Graphical user interface) in Python and test the limits of the tkinter package. If you are struggling to create graphics in python, I encourage you to "Borrow" some code.

The code can be found on GitHub:

https://github.com/raspibotics/Python-CalculatorGUI