Python Forum

1. Choose a GUI framework.
   
2. Create a frame widget.
   
3. Create a label widget "Off" with a red background.
   
4. Create a button.
   
5. Add a bool variable for True/False state.
   
6. bind an event to the button that flips the state variable and then update the labels text and background colour based on the state.
   

def toggle_gui():
    for tog in gui:
        if tog[0] == default_window:
            default_window = Label(the_window, bg = 'gray', height=3, width=25, bd=1,
            relief = 'raised', font =('times', 18, 'bold'))
            default_window.pack(fill=X, padx=5, pady=5)
        
        elif tog[1] == on_window:
            on_window = Label(the_window, text = 'ON', bg = 'green', height=3, width=25, bd=1,
            relief = 'raised', font =('times', 18, 'bold'))
            on_window.pack(fill=X, padx=5, pady=5)

        else:
            off_window = Label(text = 'OFF', bg = 'red', height=3, width=25, bd=1,
            relief = 'raised', font =('times', 18, 'bold'))
            off_window.pack(fill=X, padx=5, pady=5)

toggle_button = Button(text = 'Toggle',bg = 'gray', height=1, width=15,
relief = 'raised', font =('times', 10))

toggle_button.pack()

import tkinter as tk


class MainFrame(tk.Frame):

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.toggle_state = True
        self.create_controls()

    def create_controls(self):
        self.label = tk.Label(self, bg='gray', height=3, width=25, bd=1,
                              relief='raised', font=('times', 18, 'bold'))
        self.label.pack(fill=tk.X, padx=5, pady=5)
        self.button = tk.Button(self, text='Toggle', bg='gray', height=1,
                                width=15, relief='raised', font=('times', 10),
                                command=self.on_button)
        self.button.pack(pady=15)
        self.pack()

    def on_button(self):
        if self.toggle_state:
            self.toggle_state_on()
        else:
            self.toggle_state_off()
        self.toggle_state = not self.toggle_state

    def toggle_state_on(self):
        self.label.configure(text='ON', bg='green')

    def toggle_state_off(self):
        self.label.configure(text='OFF', bg='red')


if __name__ == '__main__':
    app = tk.Tk()
    main_frame = MainFrame()
    app.mainloop()

# Import the Tkinter functions
from tkinter import *

# Create a window
the_window = Tk()

# Give the window a title
the_window.title('Toggle Changer')

toggle_window = Label(the_window, bg = 'gray', height=3, width=25, bd=1,
relief = 'raised', font =('times', 18, 'bold'))
toggle_window.pack(fill=X, padx=5, pady=5)

def toggle_gui():

    for click in range(4):
    
        if click == 1:
            toggle_window.config (bg = 'green', text = 'ON')

        elif click == 2:
            toggle_window.config(bg = 'red', text = 'OFF')
        
        else:
            toggle_window.config (bg = 'green', text = 'ON')
            
            
#Toggle Button
Button(text = 'Toggle', command = toggle_gui, bg = 'gray', height=1, width=15,
relief = 'raised', font =('times', 10)).pack()

• when click is 0 the else code happens.
  
• when click is 1 the if code happens.
  
• when click is 2 the elif code happens.
  
• when click is 3 the else code happens.