I can’t really deepen my understanding of screen transitions using wxpython.
How can we implement screen transitions?
Sorry for my poor English
well, your English is ok, I just don’t get what you mean 
usually an application is made up of free floating screens (the user may get into focus) or it’s based on an Aui (advanced user interface) 
so what transitions are you talking about (or not) 
Well, usually touch oriented applications have transitions of all kinds, e.g. when swiping a screen to the side. wx does not have such. The focus of wx are ‘traditional’ desktop applications. You might create some animations, but this is not available out of the box.