On Mon, Oct 29, 2012 at 3:52 PM, Andrew Robinson <andr...@r3dsolutions.com> wrote: > I am curious as to how quickly it constructs the result compared to a slice > operation. > > Eg: > a[1:5] > vs. > [ a[i] for i in xrange[1:5] ]
For the most part, don't concern yourself with performance. Go with functionality and readability. In the trivial case shown here, the slice is WAY clearer, so it should definitely be the one used; in other cases, the slice might simply be insufficient, so you go with whatever achieves your goal. Performance will usually be "good enough", even if there's a marginally faster way. ChrisA -- http://mail.python.org/mailman/listinfo/python-list
