On 02/08/2016 18:57, Steven D'Aprano wrote:
On Wed, 3 Aug 2016 03:12 am, BartC wrote:
That's not a fundamental language feature. Repeat-N is. And if properly
designed, isn't an extra feature at all but a special case of a generic
loop.
Which means it is NOT a fundamental language feature.
"Repeat N without tracking the loop variable" is just a special case
of "repeat N with tracking the loop variable", where you don't actually
care what the loop variable is.
It's fundamental in that, when giving instructions or commands in
English, it frequently comes up when you want something done a set
number of times:
"Give me 20 push-ups"
"Press space 5 times"
"Do 10 laps"
Whoever has to execute these may need to keep count somehow, but that is
not the concern of the person giving the commands.
You wouldn't say, count from 1 to 20, and for each value in turn, do a
push-up. You could also say count backwards from 95 to 0 in fives; same
effect. There are so many ways of specifying a loop that is executed 20
times, that no one way can be the right one. So that extra information
is irrelevant.
--
Bartc
--
https://mail.python.org/mailman/listinfo/python-list
