On Tuesday 07 November 2006 10:38, jim-on-linux
wrote:
Greg,
Run the following code to see how pack_forget()
or grid_forget() works, it makes previous
widgets disappear but not go away. If you call
grid() or pack() again after using
grid_forget() the widget returns.
root = Tk()
class Ktest:
def __init__(self):
self.Ftest1()
def Ftest1(self):
try:
self.test2.grid_forget()
except AttributeError :
pass
self.test1 = Button(root, text='Push #1
button', bg = 'yellow',
width = 25,
command = self.Ftest2, height = 25)
self.test1.grid(row=0, column=0)
def Ftest2(self):
self.test1.grid_forget()
self.test2 = Button(root, text='Push #2
button', bg = 'green',
width = 15,
command = self.Ftest1,
height = 10)
self.test2.grid(row=0, column=0)
if __name__== '__main__' :
Ktest()
mainloop()
Maybe someone else has an idea about not
defining a variable.
My question is how does a budket of wires and
screws know its a bucket of wires and screws
unless someone tells it that it's a bucket of
wires and screws?
jim-on-linux
http://.www.inqvista.com
>
>
>
>
>
> On Tuesday 07 November 2006 09:35,
>
> [EMAIL PROTECTED] wrote:
> > Hi all,
> >
> > I'm trying to write a GUI that will put up
> > multiple widgets in succession. My problem is
> > that each widget also contains the previous
> > widgets when they pop up. How do I
> > reinitialize the widget each time so that it
> > doesn't contain earlier ones? Actually,
> > another question I have is, is there a way to
> > set python so that it will assume any
> > undefined variable is 0 or ''? That is, I
> > have several statements like "If k > 0 then
> > so and so" and I would like it to assume k=0
> > unless I tell it otherwise. I've just been
> > defining k=0 at the start of the program but
> > it seems there should be a better way.
> >
> > Greg
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