Printing n elements per line in a list

[John Machin]

Gerard Flanagan wrote:

>
> just variations on previous answers:
>
> rng = range(1,101)
>
> #ad hoc
> for line in ( rng[i:i+5] for i in xrange(0,100,5) ):
>     print ' '.join(map(str,line))
>
> #in general
> def lines( seq, count=1 ):
>     n = len(seq)
>     for x in ( seq[i:i+count] for i in xrange(0,n,count) ):
>         yield x
>

Don't those last two lines deflate to:
    for i in xrange(0,n,count):
        yield seq[i:i+count]
???