how can i have the function to enable / disable the entries near the buttons?

Question

import tkinter as tk

class App(tk.Frame):

    def __init__(self):
        super().__init__()
        self.pack()
        self.buttons = []
        self.entries = []

          


        

Answer 1

You can set the stateof a widget to 'disabled'

from tkinter import *
root = Tk()
entry = Entry(root, state = 'disabled')

To disable an individual item:

entry['state'] = 'disabled'

When you push the button, get it's location in the list, than compare that to the entry in the other list. If they match, change its state.