Can Python function return multiple data?

[Rustom Mody]

On Saturday, June 6, 2015 at 3:30:23 AM UTC+5:30, Chris Angelico wrote:
> On Fri, Jun 5, 2015 at 11:29 PM, Rustom Mody wrote:
> > On Friday, June 5, 2015 at 4:36:35 PM UTC+5:30, Steven D'Aprano wrote:
> >> On Fri, 5 Jun 2015 01:16 pm, Rustom Mody wrote:
> >> > The abstract platonic immutable list is non-existent in python
> >>
> >> Just pretend that "immutable list" is spelled "tuple".
> >
> > Ok lets say I make no fuss about the need to 'pretend'.
> >
> > And I try...
> >
> >>>> a=[1,2,3]
> >>>> b=(a,a)
> >>>> a
> > [1, 2, 3]
> >>>> b
> > ([1, 2, 3], [1, 2, 3])
> >>>> a.append(4)
> >>>> b
> > ([1, 2, 3, 4], [1, 2, 3, 4])
> 
> Congrats! You just proved that an object can itself be immutable, but
> can contain references to mutables. Ain't that awesome?
> 
> Did you have a point?

[Under assumption you are not being facetious...]
The word immutuable happens to have existed in English before python.
I also happen to have used it before I knew of python
The two meanings do not match
I am surprised
Is that surprising?

As a parallel here is Dijkstra making fun of AI-ers use of the word
'intelligent'
 http://www.cs.utexas.edu/users/EWD/transcriptions/EWD06xx/EWD618.html