[Python-Dev] Re: Allowing slicing of iterators
Fredrik Lundh
fredrik at pythonware.com
Wed Jan 26 18:44:32 CET 2005
Guido van Rossum wrote:
>> I'd like to see iterators become as easy to work with as lists are. At the
>> moment, anything that returns an iterator forces you to use the relatively
>> cumbersome itertools.islice mechanism, rather than Python's native slice syntax.
>
> Sorry. Still -1.
can we perhaps persuade you into changing that to a -0.1, so we can
continue playing with the idea?
> iterators are not sequences and shouldn't be confused with such.
the for-in statement disagrees with you, I think. on the other hand, I'm not
sure I trust that statement any more; I'm really disappointed that it won't let
me write my loops as:
for item in item for item in item for item in item for item in seq:
...
</F>
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