[issue40929] Multiprocessing. Instance of the custom class is missing in subprocesses

Change by cyberlis : -- stage: -> resolved status: open -> closed ___ Python tracker <https://bugs.python.org/issue40929> ___ ___ Python-bugs-list

[issue40929] Multiprocessing. Instance of the custom class is missing in subprocesses

New submission from cyberlis : When I use python3.7 everything works correctly and every subprocess has its own `Hello` instance. When I use python3.8 subprocesses do not have an instance of `Hello` class. Is this behavior correct? My code to reproduce an issue ```python from