How do you check if a widget has a focus in Tkinter?

Let us assume that we want to check if a particular widget has a focused set or not. The only way to check the widget focus is to use the utility method focus_get(). It returns the object containing the widget’s information which is currently focused on, during the program’s execution. We will use the focus_get() method to find the active widget during our program’s execution.

Example

In this example, we have created an Entry widget that will get its focus when we press the key. The focus_get() method will return the current widget’s information which is active.

#Import the Tkinter library
from tkinter import *
#Create an instance of Tkinter frame
win= Tk()
#Define the geometry
win.geometry("750x250")
#Define Event handlers for different Operations
def event_show(event):
   label.config(text="Hello World")
   e.focus_set()
   print("focus is:" ,e.focus_get)
#Create a Label
label= Label(win, text="Press Enter",font=('Helvetica 15 underline'))
label.pack()
#Create an entry widget
e= Entry(win, width= 25)
e.pack(pady=20)
#Bind the function
win.bind('',lambda event:event_show(event))
win.mainloop()

Output

Running the above code will display a window that contains a button. When we press the key, it will print the output containing the widget’s information which is currently focused on the window pane.

Now, when we press , it will show the output in the shell as,

focus is : >