On 07/27/2018 04:32 PM, Cameron Simpson wrote: > On 27Jul2018 23:06, Alan Gauld <alan.ga...@yahoo.co.uk> wrote:
>> In Python you very rarely need to resort to using indexes >> to process the members of a collection. And even more rarely >> do you need to manually increment the index. I think this was an important point: use a list index only when the actual value of the index is important, otherwise use the fact that a list is iterable by just looping over the list itself without bothering with indices... it's a powerful enough idea that C++. C# and other languages picked it up. > I use indices when I need to modify the elements of a list in place. The > list comprehension makes a shiny new list. That is usually fine, but not > always what is required. True indeed, but in this case since the elements being modified are strings, which are immutable and thus "modifying" a string creates a new string, we're not really buying anything by not creating a new list of those new strings along the way... _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
