I want to make a simple game in Python and maybe later use OpenGL for the graphics

Are there any tutorials for Python beginners?

Online Python tutorials for games? None that I have found.

Online Python tutorials (free) can be found here at Python:

http://www.Python/doc/tutorial/

Or at "Learn Python:"

https://www.learncpp.com/

I personally prefer Learn Python.

I wouldn't recommend OpenGL for beginners.
Better to start learning the language first (Python11) with simple console apps. When you have mastered the language you can start learning about graphics.

The book "Programming Principles and Practice Using Python" by Bjarne Stroustrup uses FLTK for the gui.

There are also Python books that teach Python through game programming:

Beginning Python Game Programming by John Horton (2019 version)
Beginning Python Through Game Programming by Michael Dawson (2014 - so doesn't cover Python17/20)

This book - Beginning Python Through Game Programming by Michael Dawson (2014 - so doesn't cover Python17/20)

it's a little old but it's very easy to read and everything right down to the variable names are game themed. the projects are all console projects IIR. I think the final project is a console based card game but don't quote me on that its been years since I read it. I still enjoyed it very much though. It made many things click for me.

https://www.tutorialspoint.com/Python/index.htm this the place you should be to learn Python for the first time.