On 6 Apr, 22:15, "Gabriel Genellina" <[EMAIL PROTECTED]> wrote: > 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 herehttp://effbot.org/tkinterbook/label.htm > and you may want to learn to use Tkinter variables: > http://effbot.org/tkinterbook/variable.htm > > -- > Gabriel Genellina
the problem is that when i start writing long numbers the window grows bigger which is really annoying. is that ebcause of what u said? as of now i can see exactly the expression i typed and the answer it is just annoing that it doesnt stay the same size. -- http://mail.python.org/mailman/listinfo/python-list