Classic confinement review request

[Wimpress]

Please see this comment by @sparkiegeek as there might be a workaround to avoid using classic confinement:

Python multiprocessing sem_open blocked in strict mode

Apologies for reviving the topic, however we recently hit the same issue and plan to use the workaround documented in https://bugs.python.org/issue19478 to configure the prefix for the semaphore such that it matches the apparmor rules. Will report back if that’s successful!