Question

我试图在Windows 10 64bit，Python 3.7中使用多处理，并且在Ubuntu python 3.7中可以轻松使用，但是在Windows中，它会引发错误。该Basepea继承自

class BasePea(metaclass=PeaMeta):
"""BasePea is an unary service unit which provides network interface and
communicates with others via protobuf and ZeroMQ
"""

def __init__(self, args: Union['argparse.Namespace', Dict]):
    """ Create a new :class:`BasePea` object

    :param args: the arguments received from the CLI
    :param replica_id: the id used to separate the storage of each pea, only used when ``args.separate_storage=True``
    """
    super().__init__()
    self.args = args
    self.name = self.__class__.__name__  #: this is the process name
    self.daemon = True

    self.is_ready = _get_event(self)
    self.is_shutdown = _get_event(self)
    self.ready_or_shutdown = _make_or_event(self, self.is_ready, self.is_shutdown)
    self.is_shutdown.clear()

    def start(self):
        super().start()
        if isinstance(self.args, dict):
            _timeout = getattr(self.args['peas'][0], 'timeout_ready', 5e3) / 1e3
        else:
            _timeout = getattr(self.args, 'timeout_ready', 5e3) / 1e3
        if self.ready_or_shutdown.wait(_timeout):
            if self.is_shutdown.is_set():
                self.logger.critical(f'fail to start {self.__class__} with name {self.name}')
            return self
        else:
            raise TimeoutError(
                f'{self.__class__} with name {self.name} can not be initialized after {_timeout * 1e3}ms')

    def __enter__(self):
        return self.start()

    def __exit__(self, exc_type, exc_val, exc_tb):
        self.close()

错误是

  File "C:\Users\PC\anaconda3\lib\multiprocessing\process.py", line 112, in start
    self._popen = self._Popen(self)
  File "C:\Users\PC\anaconda3\lib\multiprocessing\context.py", line 223, in _Popen
    return _default_context.get_context().Process._Popen(process_obj)
  File "C:\Users\PC\anaconda3\lib\multiprocessing\context.py", line 322, in _Popen
    return Popen(process_obj)
  File "C:\Users\PC\anaconda3\lib\multiprocessing\popen_spawn_win32.py", line 89, in __init__
    reduction.dump(process_obj, to_child)
  File "C:\Users\PC\anaconda3\lib\multiprocessing\reduction.py", line 73, in dump
    ForkingPickler(file, protocol).dump(obj)
_pickle.PicklingError: Can't pickle <class 'jina.peapods.pea.BasePea'>: it's not the same object as jina.peapods.pea.BasePea

ForkingPickler（文件，协议）.dump（obj）错误_pickle.PicklingError：无法腌制<class''>：它与对象不同

0 个答案: