pool.py 文件源码

def _repopulate_pool(self):
        """Bring the number of pool processes up to the specified number,
        for use after reaping workers which have exited.
        """
        for i in range(self._processes - len(self._pool)):
            # changed worker -> clean_worker
            args = (self._inqueue, self._outqueue,
                    self._initializer,
                    self._initargs, self._maxtasksperchild)
            if hasattr(self, '_wrap_exception'):
                args += (self._wrap_exception,)
            w = self.Process(target=clean_worker, args=args)
            self._pool.append(w)
            w.name = w.name.replace('Process', 'PoolWorker')
            w.daemon = True
            w.start()
            util.debug('added worker')