Python | Forgot_pack () and Forgot_grid () method in Tkinter

# Imports tkinter and ttk module

from tkinter import *  

from tkinter.ttk import *

 
# window top level

root = Tk ()

 
# a way to make the widget invisible
# or remove from top level

def forget (widget):

  # This will remove the widget from the top level

# mostly the widget is not removed

  # it just becomes invisible and loses its position

# and you can get

widget.forget ()

 
# method to make the widget visible

def retrieve (widget):

widget.pack (fill = BOTH, expand = True )

  
# Button widgets

b1 = Button (root, text = "Btn 1" )

b1.pack (fill = BOTH, expand = True )

 
# You see, the Forgot () method is missing in the command

b2 = Button (root, text = "Btn 2 " , command = lambda : forget (b1))

b2.pack (fill = BOTH, expand = True )

 
# Retrieve () method returned in command

b3 = Button (root, text = "Btn 3 " , command = lambda : retrieve (b1))

b3.pack (fill = BOTH, expand = True )

 
# infinite loop interrupted by keyboard or mouse
mainloop ()

# Imports tkinter and ttk module

from tkinter import *

from tkinter.ttk import *

  
# top-level window

root = Tk ()

 
# a way to make the widget invisible
# or remote from top level

def forget (widget):

# This will remove the widget from the top level

# mostly the widget is not removed

# it just becomes invisible and loses its position

# and you can get

widget.grid_forget ()

 
# method to make the widget visible

def retrieve (widget):

widget.grid (row = 0 , column = 0 , ipady = 10 , pady = 10 , padx = 5 )

 
# Button widgets

b1 = Button (root, text = "Btn 1" )

b1.grid (row = 0 , column = 0 , ipady   = 10 , pady = 10 , padx = 5 )

 
# See, the Forgot () method is missing

b2 = Button (root, text = "Btn 2" , command = lambda : forget (b1))

b2.grid (row = 0 , column = 1 , ipady = 10 , pady = 10 , padx = 5 )

 
# Retrieve () method returned in command

b3 = Button (root, text = "Btn 3" , command = lambda : retrieve (b1))

b3.grid (row = 0 , column = 2 , ipady = 10 , pady = 10 , padx = 5 )

  
# infinite loop, interrupted by keyboard or mouse
mainloop ()