What the Pythons docs means by "container" ?

[Ian Kelly]

On Fri, Feb 20, 2015 at 4:37 AM, Rustom Mody <rustompmody at gmail.com> wrote:
> See https://www.python.org/dev/peps/pep-0246/
>
> There Guido says "something much better is about to happen"
>
> Best as I know its not happened yet...

Well, since that PEP was rejected we now have ABCs. Although PEP 3119
wasn't written until a couple of years later, so who knows if that's
what he had in mind.