object types, mutable or not?

[Ned Batchelder]

On 5/16/18 10:06 AM, Steven D'Aprano wrote:
> On Wed, 16 May 2018 09:23:02 -0400, Ned Batchelder wrote:
>
>> I've also experimented with different ways to better say "everything is
>> an object".  One possibility is, "any right-hand side of an assignment
>> is an object," though that is a bit tortured.
> What if there's no assignment?
>
>> Now I'm thinking of trying, "Any piece of data is an object."
> Is None data? How about True and False?
>
> Surely object() isn't data... and if it is, what about len?
>
This is what I meant by the complication when you get to a deeper 
discussion of all the possible kinds of Python values. I think even 
beginners would consider True and False as data.  The others take more 
explanation.

--Ned.