show and hide password on Click of Checkbutton by configuring show option of Entry box

Tkinter display and mask password in an entry box based on Checkbutton click event using show option

We can control to show or hide chars in an Entry widget using click event of a Checkbutton.

Function my_show()

This function based on the Checkbutton status will show or hide the chars of Entry box. Here c_v1 is one IntVar. It will hold the value 1 ( onvalue ) if Checkbutton is checked, otherwise 0

def my_show():
    if(c_v1.get()==1):
        e1.config(show='') # display the chars 
    else:
        e1.config(show='*')# hide the chars using mask

Entry box with option show

e1 = tk.Entry(my_w,font=font1,show='*',textvariable=e1_str)
e1.grid(row=1,column=2,padx=5,pady=5)

Triggering the checkbutton to execute the function

c1 = tk.Checkbutton(my_w,text='Show Password',variable=c_v1,
	onvalue=1,offvalue=0,command=my_show)

Full code is here

from tkinter import *
import tkinter as tk
my_w = tk.Tk()
my_w.geometry("350x100") 
font1=('Times',18,'bold')	
sv = tk.StringVar() # connected to 1st Label and Spinbox
        
l1=tk.Label(my_w,text='Password',font=font1)  
l1.grid(row=1,column=1,padx=10,pady=10)
e1_str=tk.StringVar() # string variable   
e1 = tk.Entry(my_w,font=font1,width=15,show='*',textvariable=e1_str)
e1.grid(row=1,column=2,padx=5,pady=5)
c_v1=IntVar(value=0)
def my_show():
    if(c_v1.get()==1):
        e1.config(show='')
    else:
        e1.config(show='*')

c1 = tk.Checkbutton(my_w,text='Show Password',variable=c_v1,
	onvalue=1,offvalue=0,command=my_show)
c1.grid(row=2,column=1)    
my_w.mainloop()  # Keep the window open

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Subhendu Mohapatra

Author & Instructor at plus2net

I write and maintain practical tutorials on Python, PHP, SQL, JavaScript, HTML, jQuery, and web development at plus2net. The tutorials focus on clear explanations, working examples, and code that readers can test and adapt while learning.

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Show Hide Password of tkinter Entry

Function my_show()

Entry box with option show

Triggering the checkbutton to execute the function

Subhendu Mohapatra