Can Python function return multiple data?

[random832 at fastmail.us]

On Wed, Jun 3, 2015, at 17:56, Mark Lawrence wrote:
> Now does Python pass by value or by reference?  Happily sits back and 
> waits for 10**6 emails to arrive as this is discussed for the 10**6th
> time.

Python's in that same awkward space as Java, where it technically passes
by value, but the values are usually pointers, so passing a mutable
object (such as a list) allows the function to modify the caller's state
in a way that many people associate exclusively with by-reference.

Have I hit all the high points?