[xxyzz]

I was using spaCy's multiprocessing pipe(https://github.com/explosion/spaCy/b...guage.py#L1581) in ThreadedJob but found it will terminate calibre, I think the code should looks like this:

from multiprocessing import Process
from threading import Thread

def fun():
    while True:
        pass

class JobThread(Thread):
    def run(self):
        # code in ThreadedJob
        p = Process(target=fun)
        p.start()
        p.terminate()

JobThread().start()  # pretend it's ThreadedJobServer

The process created in ThreadedJob is still running but the calibre main process is terminated.

I also want to know the difference between calibre's ParallelJob and ThreadedJob.