def _repopulate_pool(self):
        for i in range(self._processes - len(self._pool)):
            w = self.Process(target=worker,
                             args=(self._inqueue, self._outqueue,
                                   self._initializer,
                                   self._initargs, self._maxtasksperchild,
                                   self._wrap_exception,
                                   self._finalizer,
                                   self._finalargs)
                            )
            self._pool.append(w)
            w.name = w.name.replace('Process', 'PoolWorker')
            w.daemon = True
            w.start()
            util.debug('added worker')
Bring the number of pool processes up to the specified number, for use
dataset/ETHPy150Open CleanCut/green/green/process.py/LoggingDaemonlessPool._repopulate_pool