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 4 1557
On 2006-11-07, gm********@gmail.com <gm********@gmail.comwrote:
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?
Show your code.
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.
The best way to do it is to never use undefined names.
--
Neil Cerutti
If only faces could talk. --Pat Summerall
Here's my Tkinter class:
class TwoChoice:
def __init__(self, master):
frame = Frame(master)
frame.pack()
m = Label(root, text= maentry)
m.pack()
n = Label(root, text= fave)
n.pack()
self.button = Button(frame, text=home_team, command=
self.comm_1)
self.button.pack(side=LEFT)
self.hi_there = Button(frame, text=vis_team,
command=self.comm_2)
self.hi_there.pack(side=LEFT)
def comm_1(self):
print home_team
root.quit()
def comm_2(self):
print vis_team
root.quit()
I call it by
root = Tk()
gui= TwoChoice(root)
root.mainloop()
The next time I call it I want to just run the same thing but with
different values for the variables. Instead it gives me like two copies
of the widget.
Greg
Neil Cerutti wrote:
On 2006-11-07, gm********@gmail.com <gm********@gmail.comwrote:
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?
Show your code.
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.
The best way to do it is to never use undefined names.
--
Neil Cerutti
If only faces could talk. --Pat Summerall
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?
On Tuesday 07 November 2006 09:35, gm********@gmail.com 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
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,
gm********@gmail.com 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
This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
by: srijit |
last post by:
Hello,
Any idea - why the following code crashes on my Win 98 machine with
Python 2.3? Everytime I run this code, I have to reboot my machine.
I also have Win32all-157 installed.
from Tkinter...
|
by: Paul A. Wilson |
last post by:
I'm new to Tkinter programming and am having trouble creating a
reusable button bar... I want to be able to feed my class a dictionary
of button names and function names, which the class will make....
|
by: SeeBelow |
last post by:
Do many people think that wxPython should replace Tkinter? Is this
likely to happen?
I ask because I have just started learning Tkinter, and I wonder if I
should abandon it in favor of...
|
by: corrado |
last post by:
Hello
I have an application running several thread to display some financial
data;
basically I have a thread displaying HTML tables by means of Tkhtml,
another implementing a scrolling ticker...
|
by: Stewart Midwinter |
last post by:
this has me puzzled; I've created a small test app to show the problem
I'm having.
I want to use subprocess to execute system commands from inside a
Tkinter app running under Cygwin.
When I...
|
by: Michael Yanowitz |
last post by:
Hello:
Below I have included a stripped down version of the GUI I am working on.
It contains 2 dialog boxes - one main and one settings. It has the following
problems, probably all related, that...
|
by: jkuo22 |
last post by:
Hi everyone,
Here is my simple Tkinter script:
## start of entry.py
from Tkinter import *
root=Tk()
e1=Entry(root, width=16)
e1.pack()
e2=Entry(root, width=16)
|
by: mohan |
last post by:
Hello Guys,
I am a beginner with Python programming and would like to implement
some GUI functionalities along with my main work. So I was trying to
implement one basic program (available from...
|
by: wolfonenet |
last post by:
Hi All,
My setup is:
WinXP
Python 2.5.1
TKinter version: $Revision: 50704 $
Tcl: 8.4
Debugger: WinPdb
|
by: J-Burns |
last post by:
Hello. Im a bit new to using Tkinter and im not a real pro in
programming itself... :P. Need some help here.
Problem 1:
How do I make something appear on 2 separate windows using Tkinter? By...
|
by: ryjfgjl |
last post by:
ExcelToDatabase: batch import excel into database automatically...
|
by: isladogs |
last post by:
The next Access Europe meeting will be on Wednesday 6 Mar 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM).
In this month's session, we are pleased to welcome back...
|
by: Vimpel783 |
last post by:
Hello!
Guys, I found this code on the Internet, but I need to modify it a little. It works well, the problem is this: Data is sent from only one cell, in this case B5, but it is necessary that data...
|
by: jfyes |
last post by:
As a hardware engineer, after seeing that CEIWEI recently released a new tool for Modbus RTU Over TCP/UDP filtering and monitoring, I actively went to its official website to take a look. It turned...
|
by: CloudSolutions |
last post by:
Introduction:
For many beginners and individual users, requiring a credit card and email registration may pose a barrier when starting to use cloud servers. However, some cloud server providers now...
|
by: Defcon1945 |
last post by:
I'm trying to learn Python using Pycharm but import shutil doesn't work
|
by: af34tf |
last post by:
Hi Guys, I have a domain whose name is BytesLimited.com, and I want to sell it. Does anyone know about platforms that allow me to list my domain in auction for free. Thank you
|
by: Faith0G |
last post by:
I am starting a new it consulting business and it's been a while since I setup a new website. Is wordpress still the best web based software for hosting a 5 page website? The webpages will be...
|
by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 3 Apr 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome former...
| |