In Tkinter, How I disable Entry?

Set state to 'disabled'.

For example:

from tkinter import *

root = Tk()
entry = Entry(root, state='disabled')
entry.pack()
root.mainloop()

or

from tkinter import *

root = Tk()
entry = Entry(root)
entry.config(state='disabled') # OR entry['state'] = 'disabled'
entry.pack()
root.mainloop()

See Tkinter.Entry.config


So the com function should read as:

def com():
    entry.config(state='disabled')

if we want to change again and again data in entry box we will have to first convert into Normal state after changing data we will convert in to disable state

import tkinter as tk
count = 0

def func(en):
    en.configure(state=tk.NORMAL)
    global count
    count += 1
    count=str(count)
    en.delete(0, tk.END)
    text = str(count)
    en.insert(0, text)
    en.configure(state=tk.DISABLED)
    count=int(count)


root = tk.Tk()

e = tk.Entry(root)
e.pack()

b = tk.Button(root, text='Click', command=lambda: func(e))
b.pack()

root.mainloop()