More pythonic shell sort?

[akameswaran at gmail.com]

Fredrik Lundh wrote:
> akameswaran at gmail.com wrote:
>
>  > An aside - can anyone tell me where the use += and -=  is documented?
>
>      http://docs.python.org/ref/augassign.html
>      http://pyref.infogami.com/assignments
> 
> </F>

Thanks!!!