On 16.03.2016 17:20, Terry Reedy wrote:
On 3/16/2016 11:17 AM, Sven R. Kunze wrote:
On 16.03.2016 16:02, Tim Chase wrote:
Does it annoy me when I have to work in other languages that lack
Python's {for/while}/else functionality? You bet.
I can imagine that. Could you describe the general use-case? From what I
know, "else" is executed when you don't "break" the loop. When is this
useful?
When one wants to know if the iterable contained an exceptional item
or not
I don't think that's all since I wouldn't need the "else" clause here.
The important part here is that there is code attached to the case of
"item found".
That naturally leads to what when I want to attach code to the case of
"no item found"?
or when one wants to know if the iterator is exhausted or not.
That's not 100% true, isn't it? The break could happen during iterating
over the last item of the iterable.
I vaguely remember this being a problem, why I always needed to dismiss
the "else" idea in my code because of that very corner case.
Best,
Sven
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