Is there an easier way to break a list into sub groups

[Terry Reedy]

"MetalOne" <jcb at iteris.com> wrote in message
news:92c59a2c.0402212013.2e0fa89b at posting.google.com...
> The following does what I want, but I feel like this could maybe be a
> one liner.
> I just can't think of anything shorter.
> If there is nothing shorter, does this seem like a candidate for
> inclusion in the standard library somewhere.
>
> >>> def groups(l, n):
>       """l is an input list.
>          n is the size of the sub group
>          returns a list of the sub groups
>       """
> ...   i=0
> ...   g = []
> ...   while i < len(l):
> ...     g.append(l[i:i+n])  #append sub group to g
> ...     i+=n
> ...   return g
> ...
> >>> l = [1,2,3,4,5,6]
> >>> groups(l,2)
> [[1, 2], [3, 4], [5, 6]]
> >>> groups(l,3)
> [[1, 2, 3], [4, 5, 6]]
> >>> groups(l,4)
> [[1, 2, 3, 4], [5, 6]]

I believe there was a thread on this very question perhaps 6 months ago.
Maybe you can find it on Google.

tjr