[Tkinter] Get a range from GUI ?

[water]

If that's the case, you must be using some graphics package, Which one??
for instance tkinter, Qt5, Kivy, wxpython or something else.

I use two tkinter Scale to get value each, but not enough close the aim,


tkinter is my first option but not limited,
(because I grasp PyQt, Kivy, wxpython ... less than tkinter currently. ,

tkinter seems can't implement this function, I looking for Kivy ...

By the way, can I upload image at this forum?