Hi Chris,
Looks like you're trying to do the same thing with 'f' and 'f1'. If so, you're
telling it that f is a frame class without the grid method (though you do it
tell it to "do" that later) while f1 is a frame class *including* the grid
method you describe.
>From my experience of doing this in the past, you make 'f1' be something
>besides a mere frame if this makes sense. Later on in your script this will
>cause some weirdness (at least to the developer) in it's behavior as a class.
>Although on a higher level it makes sense and I can easily see what you're
>doing and where you're going with it, the interpreter does not!
That's where the weirdness comes in -- though it's not really weirdness -- an
interpreter (even a very high level one like Python) follows a very strict
protocol of how it assigns classes and such. Gee I feel like I went around the
world on trying to explain that one.
Hope This Helps (If it doesn't, forget I ever existed ;-) )
Harlin Seritt
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Today's Topics:
1. Confused by frames (Chris Niekel)
2. Re: Confused by frames (Alexander Belchenko)
----------------------------------------------------------------------
Message: 1
Date: Sat, 13 Jan 2007 22:27:37 +0100
From: Chris Niekel
Subject: [Tkinter-discuss] Confused by frames
To: [email protected]
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=us-ascii
Hi,
I'm trying to combine a couple of widgets into a frame as a reusable
component. Somehow though, things change when I put some part in a class,
derived from Frame.
Version 1:
class F1(Frame):
def __init__(self, *args, **kw):
Frame.__init__(self, *args, **kw)
Label(text="F1").grid(row=5,column=5)
r = Tk()
b = Button(r, text='button').grid(row=0,column=1)
f = F1(r).grid(row=0,column=0)
r.mainloop()
Version 2:
from Tkinter import *
r = Tk()
b = Button(r, text='button').grid(row=0,column=1)
f1 = Frame(r)
f1.grid(row=0,column=0)
Label(f1, text='F1').grid(row=5,column=5)
r.mainloop()
I would think these are equivalent, but they're not. Version 2 has the
behaviour I expect (a new frame, so the label is on the left).
Did I do something wrong in version 1, or is there another way to make a
class with the label which behaves like a frame?
Regards,
Chris
------------------------------
Message: 2
Date: Sun, 14 Jan 2007 02:49:16 +0200
From: Alexander Belchenko
Subject: Re: [Tkinter-discuss] Confused by frames
To: [email protected]
Message-ID:
Content-Type: text/plain; charset=UTF-8
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Chris Niekel ?????:
> Hi,
>
> I'm trying to combine a couple of widgets into a frame as a reusable
> component. Somehow though, things change when I put some part in a class,
> derived from Frame.
>
> Version 1:
>
> class F1(Frame):
> def __init__(self, *args, **kw):
> Frame.__init__(self, *args, **kw)
> Label(text="F1").grid(row=5,column=5)
Last line contains error: you need to pass self as master for Label:
Label(self, text="F1").grid(row=5,column=5)
> r = Tk()
>
> b = Button(r, text='button').grid(row=0,column=1)
> f = F1(r).grid(row=0,column=0)
> r.mainloop()
>
> Version 2:
>
> from Tkinter import *
> r = Tk()
>
> b = Button(r, text='button').grid(row=0,column=1)
> f1 = Frame(r)
> f1.grid(row=0,column=0)
> Label(f1, text='F1').grid(row=5,column=5)
> r.mainloop()
>
>
> I would think these are equivalent, but they're not. Version 2 has the
> behaviour I expect (a new frame, so the label is on the left).
>
> Did I do something wrong in version 1, or is there another way to make a
> class with the label which behaves like a frame?
>
> Regards,
> Chris
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------------------------------
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