>>>>> "AK" == Andrew Koenig <ark@research.att.com> writes:
Barry> Would it be useful to add to the interator "interface" a
Barry> method which would retrieve the original iterable object?
AK> What if there isn't one?
Barry> The method would return None.
AK> But then you can't rely on it. That is, if you want to write
AK> code that depends on the ability to retrieve the original
AK> iterable, you have to give up the ability for that code to
AK> work on generators, for example.
AK> I'm not saying it's not a useful thing to have; I'm just
AK> saying it might not be as useful as it appears at first.
I'm not sure it's even useful at all, e.g. I've never had a use for
it. But if you have code that depends on the ability to retrieve the
original iterable, and you have iterators for which there /is no/
original iterable, it doesn't matter how you spell it, you're going to
have to special case around that fact.
-Barry
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