On Mon, Nov 14, 2016 at 6:25 AM, Serhiy Storchaka <[email protected]> wrote:
> On 14.11.16 02:40, Steve D'Aprano wrote:
>>
>> I'm surprised that the inspect module doesn't appear to have isiterable
>> and isiterator functions. Here's my first attempt at both:
>
> Just use isinstance() with collections ABC classes.
Except objects that use the legacy __getitem__ iterator aren't
instances of collections.Iterable:
class C:
def __getitem__(self, index):
return index
o = C()
>>> isinstance(o, collections.Iterable)
False
>>> it = iter(o)
>>> type(it)
<class 'iterator'>
>>> next(it), next(it), next(it)
(0, 1, 2)
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