On Feb 17, 10:17 am, Matthew Marshall <[EMAIL PROTECTED]>
wrote:
> Dan Bishop wrote:
> > I will say, however, that hasattr(item, '__iter__') isn't a perfect
> > way of checking whether an object is iterable: Objects that just
> > define __getitem__ are iterable too (e.g., UserList).
>
> Speaking of which, what *is* the best way to check if an object is
> iterable?
>
> I always wrap iter(item) in a try/except block,
Yes, that's the most foolproof way.
> but is there an
> isiterable() function somewhere?
Not AFAIK, but if I had to write one, I would use
isiterable = lambda x: hasattr(x, '__iter__') or
hasattr(x, '__getitem__')
In Python 3 it will be isinstance(x, Iterable).
George
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