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093b0a5 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | import multiprocessing
import multiprocessing.pool
class NoDaemonProcess(multiprocessing.Process):
"""A process that can spawn other processes"""
@property
def daemon(self):
return False
@daemon.setter
def daemon(self, val):
pass
# We sub-class multiprocessing.pool.Pool instead of multiprocessing.Pool
# because the latter is only a wrapper function, not a proper class.
class NoDaemonProcessPool(multiprocessing.pool.Pool):
"""A multiprocessing pool whose processes can spawn other processes"""
Process = NoDaemonProcess
def Process(self, *args, **kwds):
proc = super(NoDaemonProcessPool, self).Process(*args, **kwds)
proc.__class__ = NoDaemonProcess
return proc
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