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What is the difference between "command" option and bind method?

P: 13
what is the difference between "command" option and bind method,
and what is the purpose of passing event object in callback methods
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  1. def callback(event):
  2.               pass
Oct 27 '11 #1
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bvdet
Expert Mod 2.5K+
P: 2,851
A Tkinter Button can be configured with a command callback. The callback function is executed when the button is pushed.
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  1. Button(frame, text="Exit", fg="green", bg="black", command=master.destroy)
A Tkinter Button can be bound to an event such as "<ButtonRelease-1>". In effect it would behave in a similar manner in the example:
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  1. btn = Button(frame, text="Exit", fg="green", bg="black")
  2. btn.bind(sequence="<ButtonRelease-1>", func=master.destroy)
The difference in the bound event is function master.destroy must be defined to receive an argument event The event object event carries a lot of information.
Oct 27 '11 #2

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