On 27.06.2017 21:27, David Mertz wrote:

And I would like a language change that made a number of common iterable objects "chainable" without the wrapper. This wrapper could of course be used as a decorator too.

E.g. generator comprehensions, things returned by itertools functions, range(), enumerate(), zip(), etc. This wouldn't promise that EVERY iterable or iterator had that "chainable" behavior, but it would cover 90% of the use cases. And I wouldn't find it confusing because the leftmost object would be the one determining the behavior, which feels more intuitive and predictable.

I think that most people in favor of this proposal agree with you here. Let's start with something simple which can be extended bit by bit to cover more and more use-cases.

I for one would include also right-handed iterators/generator because I definitely know real-world usage (just recently) but that can wait until you feel comfortable with it as well.

If it's a language change, I would like the plus operator to be it as it integrated well with lists, such as

generator + (list1 + list2)

It can be sometimes necessary to group things up like this. Using a different operator symbol here, I would find confusing. Plus looks like concat to me.

Regards,
Sven