[Python] Python3 multiprocessing.Manager failed when running in 'old' docker on ubuntu18

Have a situation where I need to deploy my app on the ubuntu18.04 host having docker 19.03.13. Both are fare from newest but atm I can't update any of them. When I try to run my python app it constantly crashed with some multiprocessing related exception. Tried to narrow down and came up with the only two line program:

from multiprocessing import Manager
Manager().dict()


Tried different python3 images but all I tried failed with either:

ConnectionResetError: [Errno 104] Connection reset by peer
​

or

FileNotFoundError: [Errno 2] No such file or directory
​

Tried to run above two lines within the interpreter within the docker started as:

docker run -it --entrypoint=/bin/bash python:VERSION
​

Most of the version I've tried failed with the above exceptions. The only one seems to work for me was python:3.8.2

Also when running same on other machines (with newer both OS and docker) - all works fine on any python version.

So the question is - how can I make python 3.10+ works properly on that 'old' machine without updating OS and docker on it?

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