[AmeliaR]

Klimapol, none of them are really *simpler* than Tkinter, though, certainly not for the two-frame window you have in mind. using a GUI builder will hide part of the complexity from you, but you still need to deal with the rest.

[Klimapol]

So if i was going to do this as a stepping stone for learning what would be the recommendation? tkinter?

[jomanda]

Tkinter should be present on any system with python, that's a big plus
Klimapol , try http://www.ferg.org/thinking_in_tkinter/index.html

[Mupolan]

Klimapol, each variant has its advantages and shortcomings.