python best gui library code example

Example 1: python gui best

Top 5 Best Python GUI Libraries
  PyQT5.
  Python Tkinter.
  PySide 2.
  Kivy.
  wxPython.
  
This is a small list, though making gui s in Python is not really recommended.
I would personally recommend a language such as C# for creating programs
that need a gui.

Example 2: python gui builder

from tkinter import *

def changel():
    if l['text']!='Stop it!':
        l['text']='Stop it!'
    else:
        l['text']='Are you over?'

w = Tk()
l = Label(w,text = 'GUI Interface')
b = Button(w,text = 'A normal button',command = changel )
t = w.title('A normal window')
l.pack()
b.pack()
w.mainloop()