Matt Hammond wrote: > On Mon, 22 Aug 2005 12:16:01 +0100, m7b52000 <[EMAIL PROTECTED]> > wrote: > >>> command = lambda : Calc(a.get()) > > >> I get the following message when I use lambda as above: >> >> TypeError: <lambda>() takes no arguments (1 given) > > > Oops, forgot! The Scale widget outputs a single argument - the value of > the slider. You therefore could write: > > command = lambda value : Calc(value) > > or even simpler: > > command = Calc > > In the latter case, you're supplying your "calc" function as the > function to be called. Calc takes a single argument - the value of the > slider, so it fulfills the task. Note that we're passing "Calc" (the > function itself), not "Calc(...)" (the result of calling the function) > > regards > > > Matt > Ahhhh. Partial success with : command = Calc. A slider will now pass its argument to a function without problem. My Calc function however is expecting 3 arguments - 1 from each slider i.e moving any of the 3 sliders should cause a recalculation. I am now getting the following error: TypeError: Calc() takes exactly 3 arguments (1 given)
p.s your help is much appreciated.... -- http://mail.python.org/mailman/listinfo/python-list