What am I doing wrong in this simple tkinter example?

[Yves S. Garret]

On Saturday, March 16, 2013 11:23:07 AM UTC-4, Chris Angelico wrote:
> On Sun, Mar 17, 2013 at 2:16 AM, Yves S. Garret
> 
> <your... at gmail.com> wrote:
> 
> > In the example that I have posted from the book it works just fine.
> 
> 
> 
> Yep, I just checked the book's version again and the difference is
> 
> clear. Check out the two lines I quoted in my previous post, and look
> 
> at the corresponding two lines in the book's version. You should see
> 
> the difference. :)
> 
> 
> 
> By the way, I like the choice of secret. It lends itself well to a
> 
> discussion of recursion - how do you live to 99? Live to 98, then be
> 
> careful. Etcetera. You need just one special case: How do you live to
> 
> 1? Be born, then be careful. And there you have it, a perfect problem
> 
> for defining recursion vs iteration, as both can do the job!
> 
> 
> 
> ChrisA

*facepalm*

Yep, I see it :) .  Thanks for your help.