Tkinter --> Why multiple windows

[kevind0718 at gmail.com]

On Thursday, March 24, 2016 at 4:29:03 PM UTC-4, Random832 wrote:
> On Thu, Mar 24, 2016, at 16:24, kevind0718 at gmail.com wrote:
> > Hello:
> > 
> > newbie Tkinter question
> > 
> > If I run the code below two windows appear.
> > One empty and one with the text box and button.
> 
> The empty one is the root window.

I kinda guessed that.  
Is there any downside to hiding it using root.withdraw().

thanks for quick responce.

KD