Open-source Languages & Tools for z/OS

hi do we know when we will support python multiprocessing feature, it is currently blocking us to run test cases in parallel, with python2.7, I got error message saying “Multiprocessing is not implemented, because of EDC5257”, what is EDC5257 ? with python 3.6, a simple python program with multiprocessing.Pool feature will hang.

That would be very interesting, esp. if it would run on SRBs in order to exploit ZIIP processors like Java can.

In a Python program, multiprocessing could be fairly easily substituted with threading though not exploiting multiple processors on a z machine:

    try:
        import multiprocessing
        from multiprocessing import Process, Lock, Value
    except:
        print('"multiprocessing" module not available using "threading"')
        from threading import Lock
        from threading import Thread as Process
        class Value(object):
            def __init__(self,typ,val):
                self.value=val

This seems to run fairly parallel for reads from a database on z/OS - see