Tukukkk

I want to create buttons labelled with names from a list. When you click on a button its relief shall change from groove to sunken. There is one condition, only one button is allowed to be sunken. Thus, when you click on a button while another one is already sunken, the sunken one has to go back to groove.
How it looks like

I was able to put my idea into action and coded the whole thing. However, I'm wondering if there might be a better way to implement it. What is your opinion? Here is my code:

import tkinter as tk

from functools import partial



class ButtonSunken:

    def __init__(self):

        self.tags = ('A','B','C','D','E','F')

        self.buttons = 

        self.win = tk.Tk()

        self.create_buttons()

        self.win.mainloop()



    def create_buttons(self):

        for j,i in enumerate(self.tags): 

            self.buttons.append(tk.Button(self.win, text = i))

            self.buttons[-1].grid(column=0, row=j)

            ho_general = partial(self.button_pressed, self.buttons[-1])

            self.buttons[-1].configure(command = ho_general)



    def button_pressed(self, button):

        try: # first time active_button does not exist yet

            self.active_button.configure(relief = 'groove')

        except:

            pass

        button.configure(relief = 'sunken')

        self.active_button = button       



t_object = ButtonSunken()

Thank you very much for your help!

Your method is pretty much good, just that it can be done without using any special functions. In my code, I just store the index of the current active button and set its relief to groove whenever the next button is pressed whose relief is in turn changed to sunken. Have a look at the code.

import tkinter as tk



class ButtonSunken:

    def __init__(self):

        self.tags = ('A','B','C','D','E','F')

        self.buttons = 

        self.active = None

        self.win = tk.Tk()

        self.create_buttons()

        self.win.mainloop()



    def create_buttons(self):

        for j,i in enumerate(self.tags): 

            self.buttons.append(tk.Button(self.win, text=i, command=lambda x=j: self.button_pressed(x)))

            self.buttons[-1].grid(column=0, row=j)



    def button_pressed(self, idx):

        if self.active is not None:

            self.buttons[self.active].configure(relief='groove')

        self.buttons[idx].configure(relief='sunken')

        self.active = idx      



t_object = ButtonSunken()