sorted() erraticly fails to sort string numbers

[Lie Ryan]

John Posner wrote:
> uuid wrote:
>> I am at the same time impressed with the concise answer and 
>> disheartened by my inability to see this myself.
>> My heartfelt thanks!
> Don't be disheartened! Many people -- myself included, absolutely! -- 
> occasionally let a blind spot show in their messages to this list. BTW:
> 
>    container[:] = sorted(container, key=getkey)
> 
> .... is equivalent to:
> 
>    container.sort(key=getkey)
> 

Equivalent, and in fact better since the sorting is done in-place 
instead of creating a new list, then overwriting the old one.