Both Are good and depend on what is your project whether it is a basic and a simple project then most probably you should go with tkinter but kivvy is a better option for a better flexibility and power .. Other options for more complex GUIs than what Tkinter can offer include PyQt and wxPython.
Read moreWhich Python GUI is best?
List of Best Python GUI Libraries
Read moreWhich Python GUI is best?
List of Best Python GUI Libraries
Read moreWhich is better tkinter or Kivy?
For simple programs, tkinter is a lot more straightforward and easier to get started with . Plus its library is built into the standard python installation package. Kivy offers more flexibility and is more complicated, but it also has support for mobile (android + IOS).
Read moreCan I use Kivy and tkinter together?
It probably is possible to run Kivy in an opengl context within a tkinter window, but there’s no support for this and you’d have to write a fair amount of code to get it to work. Essentially you’d need to write a tkinter backend provider for the Kivy window.
Read moreIs Tkinter worth learning 2020?
The answer to your question is a resounding yes .
Read moreIs Kivy the best GUI?
Kivy is a great framework because it is much more versatile than a lot of the other options on this list . You can even develop mobile apps with Kivy! The user interfaces are also beautiful. However, I will say that the customization of that beauty is quite lackluster.
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