Cross-interpreter support for efficient sharing of frozendicts

Feature or enhancement

Proposal:

The concurrent.interpreters module for subinterpreters handles sharing/sending values across interpreters with direct sharing of some basic immutable types, and a fallback to pickling others. As an immutable container, tuples are supported (as long as all items are themselves shareable). Similarly, I think it would be good to support sharing frozendict without serialization (if keys & values are shareable).

Because dictionaries are so fundamental and common, having a better and more performant way to share such a mapping would significantly improve the experience of using concurrent.interpreters and InterpreterPoolExecutor.

Has this already been discussed elsewhere?

No response given

Links to previous discussion of this feature:

No response

Inizia leggendo la documentazione di concurrent.interpreters sulla condivisione degli oggetti e la gestione esistente di tuple e mappings condivisibili nel modulo. Determina come potrebbe funzionare la condivisione di frozendict quando tutte le chiavi e i valori sono condivisibili; il lavoro è completo quando i valori supportati attraversano gli interpreti senza pickling e il comportamento è coperto dai test pertinenti.