[Python-ideas] copyable iterators, named loops, continue a expression per indentation and a few functional things

[Florian Weimer]

* Mathias Panzenböck:

>>>> f = F()
>>>> g = G()
>>>> (f + g)("x")
> 'x bar foo'
>>>> (g + f)("x")
> 'x foo bar'

I would expect that (f + g)(x) == f(x) + g(x).  Using "+" for a
non-commutative operation doesn't seem right.