Multiprocessing?

[Cagatay]

Any info why multiprocessing library does not exist?

[dgelessus]

Apple does not allow apps to create child processes, and calling os.fork() raises an OSError [Errno 2]: Permission denied. multiprocessing relies on subprocesses as far as I can tell, which is probably why it wasn't included. The threading module is still usable (I think) so you might want to try using that instead.

[omz]

iOS apps cannot spawn subprocesses (Apple policy), so it's not possible to support this module.

[Cagatay]

Thanks for the info, not only the threading but also want to test the multiprocessing.Pool on Pythonista

[ijkim88]

I noticed that Pythonista 3 beta has the multiprocessing module. Does that mean it's okay now and can be ported to 2? Or will it be removed once out of beta?

[JonB]

I believe mostly this gives operation not permitted.

[omz]

@ijkim88 @JonB is right, it pretty much doesn't work. I've left it in there for the same reason as subprocessing – some third-party modules may rely on it being importable (because it's in the standard library), but still have functionality without it.

[ijkim88]

@JonB @omz Gotcha, thanks!!