[Python-3000] have zip() raise exception for sequences of different lengths

[Georg Brandl]

Raymond Hettinger wrote:
>>How about a keyword-only argument called finish which is a callable to
>>deal with the problem?  When any sequence is exhausted, its position
>>is filled with StopIteration, and then finish(result) is returned.
>>
>>  
>>
> 
> How about we resist the urge to complicate the snot out of a basic 
> looping construct.  Hypergeneralization is more of a sin than premature 
> optimization.
> 
> It is important that zip() be left as dirt simple as possible.

Added to PEP 3099.

Georg