What the Pythons docs means by "container" ?

[MRAB]

On 2015-02-18 02:14, candide wrote:
> Le mercredi 18 février 2015 01:50:16 UTC+1, Chris Angelico a écrit :
>
>> So, what's a container? It's a thing that you put other objects
>> into.
>
> I agree with this approach. The important point to consider here is
> the last word in your definition : "into". There is the container and
> there is the content (the objects into). The so-called built-in
> containers (list, string, etc) are in conformance with this view.
> Now, regarding a range object as a container disagrees completely
> with the definition given in the PLR : there is no contents and hence
> there is no container. For instance, range(10**6) doesn't hold any
> kind of object, there are no reference to the int objects 0, 1, 2,
> ... As the range's docstring explains, range returns a VIRTUAL
> sequence.
>
It's a virtual, read-only container that contains integers.

Try comparing range(10) with tuple(range(10)). Both contain integers.
Both have a length. Both can be indexed.