[Tutor] t = (1, *(2, 3))

[Alan Gauld]

"Jabin Jezreel" <jabinjezreel at gmail.com> wrote 

> I am not allowed to do
> >>> t = (1, *(2, 3))

Just to be clear, what do you think this means?
What would you expect to happen?

> But I am allowed to do
> >>> def ts(*t):
> ... return t
> ...
> >>> ts(1, *(2, 3))
> (1, 2, 3)

What do you think is happening here that is different?

> I realize I can do
> >>> (1,) + (2,3)
> (1, 2, 3)

And how does this relate to the use of the asterisk?
Is this what you expect the asterisk version above to do?

> What is the rationale behind not having t = (1, *(2, 3))
> have the same semantics as the "ts" case above?

That I don't know. The asterisk notation can only be used 
for unpacking function arguments, but why it is limited to 
that role I don't know...?


-- 
Alan Gauld
Author of the Learn to Program web site
http://www.alan-g.me.uk/