[Tkinter-discuss] Tkinter grid_info()

[Michael Lange]

Hi Paul,

On Wed, 18 Feb 2015 20:52:06 +0200
Paul Malherbe <paul at tartan.co.za> wrote:

> Hi Michael
> 
> I tried using wantobjects=False but found that it broke too many other
> things like e.g. cget['size'], cget['width'], Treeview selection and
> some others. I found that in this case it was easier to create my own
> geom_info function.

glad to hear that everything works for you now.
Of course you are right, changing this in an existing project is likely
to cause quite a bunch of side effects. I usually set wantobjects to
False right from the start, then it does not add much cost to use calls
like int(cget('size')) etc. Maybe "ad hoc" type-conversions as these have
an impact on performance in some situations, if really a lot of them have
to be done, but I never experienced any problems of that kind.

Regards

Michael

> 
> Paul
> 
> On 18/02/2015 19:04, Michael Lange wrote:
> > On Wed, 18 Feb 2015 14:49:14 +0200
> > Paul Malherbe <paul at tartan.co.za> wrote:
> >
> >> Hi Jeff
> >>
> >> The problem seems to have occurred with version 2.7.6 of python in
> >> linux.
> > I always found it impossible to predict the occurence of these
> > TclObjects, it seems to me that they depend on a combination of Python
> > and Tcl/Tk versions that are not fully compatible, this is why I
> > recommend setting wantobjects to False when writing code that is
> > supposed to work on different systems, with unknown Python/Tk
> > combinations.
> >
> > Btw, I think I read somewhere that wantobjects = False is supposed to
> > work now with recent versions of Python3, too (never tested it myself,
> > though)
> >
> > Regards
> >
> > Michael
> >
> >
> >> Paul
> >> Signature
> >> On 17/02/2015 22:31, Jeff Epler wrote:
> >>> Not reproduced on:
> >>>     Python 2.7.3 (default, Mar 13 2014, 11:03:55) 
> >>>     [GCC 4.7.2] on linux2
> >>> (Debian Wheezy amd64 with python 2.7.3-6+deb7u2, tcltk 8.5.11-2)
> >>>
> >>> $ python /tmp/Malherbe.py 
> >>> row: 0 column: 0
> >>>
> >>> Jeff
> >>>
> >> _______________________________________________
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> >
> >
> > .-.. .. ...- .   .-.. --- -. --.   .- -. -..   .--. .-.
> > --- ... .--. . .-.
> >
> > Totally illogical, there was no chance.
> > 		-- Spock, "The Galileo Seven", stardate 2822.3
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> 



.-.. .. ...- .   .-.. --- -. --.   .- -. -..   .--. .-. --- ... .--. . .-.

One does not thank logic.
		-- Sarek, "Journey to Babel", stardate 3842.4