itertools doc example "consume"

Skip Montanaro skip at
Fri Mar 8 22:43:21 CET 2013

Ian Kelly <ian.g.kelly <at>> writes:

> Depending on your Python version lst is either a range object or a
> list, neither of which is an iterator.  If you pass to consume an
> iterable object that is not an iterator, it will implicitly obtain an
> iterator for it, consume from the iterator, and then discard the
> iterator, with no effect on the original object.
> In general the itertools functions will work equally well on iterators
> and other iterables, but consume is special in that what it does is
> only relevant to iterators.

Thanks for the explanation.  I clearly still need to grapple with this
stuff a bit...


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