[Tutor] Group sequence pairwise

[Christopher Arndt]

David Perlman schrieb:
> I found this by "using Google".  You should be able to make a simple  
> modification (I can think of a couple of ways to do it) to have it  
> pad the end with "None".  It is 100% iterator input and output.
> 
> http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/303279

Yes, this looks just like what I need, thanks for the pointer. I guessed
that the islice function would probably be part of the solution, but I
couldn't quite grok how it works.

Chris