Error when trying to overload an operator “/”

I recently start teaching myself game programming. Someone recommend me to start with Python and I got the book “Beginning game development with Python and Pygame: From novice to professional”. I got to a part where they teach about Vectors and creating a Vector2 class. Everything was going well until I tried to overload the division operator.
My code goes like this:

cx_Freeze converted GUI-app (tkinter) crashes after pressing plot button

I’ve been dealing with this for days now and hope to find some help. I developed a GUI-application with imported modules tkinter, numpy, scipy, matplotlib, which runs fine in python itself. After having converted to an exe everything works as expected, but NOT the matplotlib section. When I press my defined plot button, the exe simply closes and doesn’t show any plots.
So I thought to make a minimal example, where I simply plot a sin-function and I’m facing the same issue:
Works perfect in python, when converting it to an exe it crashes when pressing the plot button. Here is the minimal example: