wip/py-processing 0.52nb2 NetBSD

Processing is a Python package which supports the spawning of processes using the API of the standard library's threading module. Features include:

* Objects can be transferred between processes using pipes or multi-producer/multi-consumer queues. * Objects can be shared between processes using a server process or (for simple data) shared memory. * Equivalents of all the synchronization primitives in threading are available. * A Pool class makes it easy to submit tasks to a pool of worker processes.