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Demonstrates 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.title("Click Counter") root.geometry("200x50") app = Application(root) root.mainloop()