[Python-ideas] Introduce collections.Reiterable

[Oscar Benjamin]

On 23 September 2013 09:44, Nick Coghlan <ncoghlan at gmail.com> wrote:
>
> The fact Python 3 lets you create ranges you can't directly take the
> length of is a bit of a hack, too (because of the pain involved in
> defining an alternative __len__ protocol that didn't funnel everything
> through an ssize_t value):
>
>>>> x = range(10**100)
>>>> len(x)
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
> OverflowError: Python int too large to convert to C ssize_t
>>>> (x.stop - x.start) // x.step
> 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

I wouldn't call that a "hack". It's clearly a bug.


Oscar