[Python-Dev] PEP 276 (simple iterator for ints)
ark at acm.org
Sun Jul 4 17:13:01 CEST 2004
> IMO it would be clearer, and equally elegant, to write
> this as something like
> for i in indices(myList):
> which is easily accomplished with the aid of a suitable
> definition for indices(). No language changes needed.
I think that
for i in myList.keys():
would be even better, because it allow the same usage for dict and list. Of
course that wouldn't generalize to other sequences that support len.
Incidentally, I've always liked Algol 68's loop syntax, which if I remember
right is something like this:
[ for <id> ] [ from <expr> ] [ to <expr> ] [ by <expr> ]
[ while <expr> ] do <suite> od
So one would write
for i to n do ... od
for i from 0 while <whatever> do ... od
which would loop while <whatever> is true and keep count of the iterations.
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