How can I extend a "normal" class with a static class in Python? -

i'm using python 3 , i'm trying rewrite graphics library wrote while ago. right now, have class called scene has 3 methods in addition constructor: logic(self), update(self), , render(self).

logic(self) handles logic of each scene. handles mouse , keyboard input, , figures out whether button clicked, et cetera.

update(self) can thought of abstract method. contents raise notimplementederror. update(self) called number of times each second, , updates whatever going on in program, but not draw on screen. framerate-independent update. if pong made library, ball's position updated in method.

render(self) updates screen. way, speed of program not determined framerate.

i current implementation of scene. it's clean right now, , seems intuitive. however, can't on how extend scene. suppose want make scene basic gui main menu. want there only one main menu scene, because don't think it's idea recreate whole other scene every time main menu viewed , used.

i started out extending scene static class, realized it's not possible that. is current paradigm extend scene with normal class, , recreate , destroy everytime subclass must used? example, should recreate , destroy hypothetical mainmenu(scene) object when viewing , leaving it, respectively?