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From: Ned Batchelder <ned@nedbatchelder.com>
Subject: Re: gotta love radio buttons
Date: Sun, 05 Jan 2014 13:37:25 -0500
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On 1/5/14 1:18 PM, eneskristo@gmail.com wrote:
> So, I'm having this radio button issue in tkinter:
> First I assign the IntVar:
> var = []
> while i < self.something:
>      var.append(IntVar())
>      i += 2
> Later on I use them, but I get this error:
> for r in var:
>      helper = var[r].get()
>      self.something_else[helper] += 1
> Then, this happens:
> Traceback (most recent call last):
>    File "F:\Portable Python 3.2.5.1\App\lib\tkinter\__init__.py", line 1456, in __call__
>      return self.func(*args)
>    File "----(Not giving this)", line 26, in submit_data
>      helper = var[r].get()
> TypeError: list indices must be integers, not IntVar
> I'm willing to give additional info. Thank you in advance.
>

This isn't about radio buttons, it's about how for loops work. I think 
you want:

     for r in var:
         helper = r.get()

The iteration variable in a for loop (r in this case) takes on the 
values of the elements of the list, not the indexes of the elements.

-- 
Ned Batchelder, http://nedbatchelder.com