Newbie alert !

Lonnie Princehouse finite.automaton at gmail.com
Fri Dec 3 19:10:24 CET 2004


> bou_asia=Button(fen1, text='Asia',\
>                    command=rings(size=41, offsetX=50,offsetY=22, 
> coul='yellow'))

You're calling the rings function when you create the button.

What you really want is for "command" to be a callable object
that the button will invoke when it's clicked, e.g.:

def mycallback():
  print 'click'

mybutton = Button(parent, text='a button', command = mycallback)

Notice that there are no parentheses after mycallback -- it's not
being called, but the function itself is being passed as an argument.

In your case, you need to find a way to pass arguments to rings, so
you'll have to curry the function.  Here's one way to do it:

def rings_callback(**keywords):
    # return an anonymous function that calls rings when invoked.
    return lambda k=keywords: rings(**k)

bou_asia = Button(fen1, text='Asia',
   command=rings_callback(size=41, offsetX=50,offsetY=22,
coul='yellow'))

Hope that helps.



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