Python 在multiprocessing Manager.dict（）中存储进程对象

我创建了这个示例程序来概括我所面临的问题

import multiprocessing
from multiprocessing import Manager

def f (_print):
    print _print
    manager = multiprocessing.Manager()
    dict = manager.dict()
    dict['process_obj'] = multiprocessing.current_process()
    print dict

if __name__ == '__main__':
    process = multiprocessing.Process(target=f, args= ('hello function', ))
    process.start()
    process.join()

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那么，如何在multiprocessing Manager.dict（）中存储流程对象？

我假设您正在谈论此错误：

hello function
Process Process-1:
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/multiprocessing/process.py", line 258, in _bootstrap
    self.run()
  File "/usr/local/lib/python2.7/multiprocessing/process.py", line 114, in run
    self._target(*self._args, **self._kwargs)
  File "mp2.py", line 8, in f
    dict['process_obj'] = multiprocessing.current_process()
  File "<string>", line 2, in __setitem__
  File "/usr/local/lib/python2.7/multiprocessing/managers.py", line 758, in _callmethod
    conn.send((self._id, methodname, args, kwds))
PicklingError: Can't pickle <type 'instancemethod'>: attribute lookup __builtin__.instancemethod failed

这很好用

    dict['process_obj'] = multiprocessing.current_process().ident