Binding an event with an event handler

 
from Tkinter import *

class Application(Frame):
    def __init__(self, master):
        Frame.__init__(self, master)
        self.grid()
        self.bttn_clicks = 0    
        self.create_widget()

    def create_widget(self):
        self.bttn = Button(self)
        self.bttn["text"]= "Total Clicks: 0"
        self.bttn["command"] = self.update_count
        self.bttn.grid()

    def update_count(self):
        self.bttn_clicks += 1
        self.bttn["text"] = "Total Clicks: " + str(self.bttn_clicks)
          
root = Tk()
root.geometry("200x50")
app = Application(root)
root.mainloop()

Related examples in the same category

1.	Associating arguments to an event-handler function
2.	Sharing Information Between Event-Handler Functions
3.	What Events Does 'Command' Bind To?
4.	adds callbacks function to a button
5.	Add system exit action to a button
6.	Update Label in action event
7.	Class wrapper for GUI
8.	Use lambda to generate a call back function for a button

Binding an event with an event handler : Event « GUI Tk « Python

Related examples in the same category