R. David Murray added the comment:
Mentioning ids would be pretty much redundant with mentioning pickle. If it is
pickled its id is going to change. I think Davin was suggesting that while the
use of serialization is documented, it is not documented *consistently*.
Everywhere
Irit Katriel added the comment:
There is a note mentioning pickle in this section:
https://docs.python.org/3/library/multiprocessing.html#pipes-and-queues
It starts with "When an object is put on a queue, the object is pickled and..."
A comment about the object ids can be added there.
