TkInter callback - how to ?

Michael P. Reilly arcege at
Wed Jun 23 16:48:03 EDT 1999

bernard <bh at> wrote:

: I have an array of buttons (a keypad) all using the same callback
: function - is there any way of finding out which button invoked
: the callback ? I suppose I am looking for a tcl/tk solution
: something like
:   -command "myCallback $thisButton"
: but tkInter only seems to provide
:   -command myCallback

: Any help welcome

for index in range(5):
  button = Button(None,
    text='%d' % index,
    command=lambda i=index: myCallback(i)

Generally it is easier to give it a bound method or other callable object
with the needed information.


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