En Sun, 06 Apr 2008 15:12:55 -0300, <[EMAIL PROTECTED]> escribió:
I can't help with your sizing problem, I don't know grids. But don't do
this:
> def Display(self, number):
> self.expr = self.expr + number
> self.lbText = Label(self, text=self.expr)
> self.lbText.grid(row=0, column=0)
>
> def Calculate(self):
> self.expr = str(eval(self.expr))#try catch tex 3+6+
> self.lbText = Label(self, text=self.expr)
> self.lbText.grid(row=1, column=1)
> self.expr = ""
You're creating a *new* Label object for each keystroke (they stack on the
same place and only the newest is visible, I presume).
Instead, you should change the text inside the existing widget:
self.lbText.config(text=self.expr)
(there is no need to reposition the widget)
Label is described here http://effbot.org/tkinterbook/label.htm
and you may want to learn to use Tkinter variables:
http://effbot.org/tkinterbook/variable.htm
--
Gabriel Genellina
--
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