best way to increment an IntVar?

[Emile van Sebille]

On 6/25/2010 10:24 AM rantingrick said...
> On Jun 25, 9:12 am, Alan G Isaac<alan.is... at gmail.com>  wrote:
>> On 6/24/2010 1:59 AM, Dennis Lee Bieber wrote:
>>
>>> It is NOT a numeric "variable" in Python realms.
>>
>> Sure, but why does it not behave more like one?
>> It seems both obvious and desirable, so I'm
>> guessing there is a good reason not to do it.
>
> This is a good point. And i have always believed the IntVar should
> work this way. However it has not been changed because those who have
> the power to change it really don't use GUI's (much less Tkinter) or
> for that matter really care. I fear your laments will only fall on
> deaf ears as the many before you. However i find the control vars in
> most instances not really the best choice. For check buttons and
> radiobuttions they are essintial, however for labels, texts,
> listboxes, etc, just use w.config()
>
> As another example; IDLE is full of atrocities like using built-ins
> for variables, polluting namespaces with from Tkinter import * (not to
> mention that this slows load time to a crawl when you have load 30
> namespaces with 500 or so names), the package is missing much needed
> comments and doc strings, and the most annoying and i would say
> *idiotic* of all is the "if __name__ == '__main__' tests" use
> root.quit instead of root.destroy! WTF! So after you run your test and
> try to press the little red X button to close the window guess what
> happens...yes the mainloop quits processing events but the GUI stays
> plopped right there on your monitor until you go and kill the process
> from task manager... WHAT F'N MORON WROTE THIS CODE?!?! But what is
> more amazing is how this atrocious code has lingered the stdlib for so
> long. People it's time to wake up, IDLE needs a complete re-write.
>
> But i wonder how many have called for changes and those changes have
> fallen on deaf ears. How many have submitted beautiful code only to be
> ignored because of childish rivalries? Why do i even waste my time
> posting to this group? There's a good question.


IIRC, IDLE was written by Guido so that he could experience writing in 
python (which he also wrote).  _You_ can either rewrite it or not, but 
realize no one else is going to do it, so stop wasting your time asking 
for it to be rewritten.

Emile