Sharing a lock between gunicorn workers

Question

Is there a good way to share a multiprocessing Lock between gunicorn workers? I am trying to write a json API with Flask. Some of the API calls will interact a python class

Answer 1

Late addition:
If for some reason, using preload_app is not feasible, then you need to use a named lock. This ensures that all processes are using the same lock object. Using mp.Lock() will create a different object for each process, negating any value.

I saw this package but did not use it yet. It supplies a named lock in the scope of one machine; that means that all processes within the same machine will use the same lock, but outside the boundaries of one machine this solution is not appropriate.