ValueError vs IndexError, unpacking arguments with string.split

[Morten W. Petersen]

On Sat, Dec 1, 2018 at 1:11 AM Chris Angelico <rosuav at gmail.com> wrote:

> On Sat, Dec 1, 2018 at 10:55 AM Morten W. Petersen <morphex at gmail.com>
> wrote:
> > But this raises the question of how to write Python code,
> > short and sweet, that could handle infinite iterators in
> > such an unpack with multiple variables to assign to.
> >
> > Which I guess is mostly theoretical, as there are other
> > ways of designing code to avoid needing to unpack
> > an infinite iterator using the * prefix.
>
> It could only be done with the cooperation of the iterable in
> question. For instance, a range object could implement a "remove
> first" operation that does this, and several itertools types wouldn't
> need to change at all. But it can't be done generically other than the
> way it now is (pump the iterator the rest of the way).
>


I wasn't able to follow this, could you elaborate?

Regards,

Morten


-- 
Videos at https://www.youtube.com/user/TheBlogologue
Twittering at http://twitter.com/blogologue
Blogging at http://blogologue.com
Playing music at https://soundcloud.com/morten-w-petersen
Also playing music and podcasting here:
http://www.mixcloud.com/morten-w-petersen/
On Google+ here https://plus.google.com/107781930037068750156
On Instagram at https://instagram.com/morphexx/