[Python-ideas] Use the plus operator to concatenate iterators

[Paul Moore]

On 5 August 2015 at 15:00, Sven R. Kunze <srkunze at mail.de> wrote:
> 60% of the thread are about the ominous * operator on lists. << Seriously?
> The thread started with a simple and useful idea; not with some rarely used
> feature.
> 35% of the thread are about some internal implementation issues. <<< Maybe
> not easy but I am certain you will sort that out.
> 5% about its usefulness and simplicity. <<< I stick to that.

There is no single iterator type that can have a "+" operator defined
on it. If you pick one or more such types, other (possibly user
defined) types will not work with "+" and this will confuse users.

itertools.chain is available to do this in an unambiguous and
straightforward manner, its only downside (for some people) is that
it's slightly more verbose.

Paul