Change command Method for Tkinter Button in Python

Question

I create a new Button object but did not specify the command option upon creation. Is there a way in Tkinter to change the command (onclick) function after the

Answer 1

Sure; just use the bind method to specify the callback after the button has been created. I've just written and tested the example below. You can find a nice tutorial on doing this at http://www.pythonware.com/library/tkinter/introduction/events-and-bindings.htm

from Tkinter import Tk, Button

root = Tk()
button = Button(root, text="Click Me!")
button.pack()

def callback(event):
    print "Hello World!"

button.bind("", callback)
root.mainloop()