Question

In [1]: from multiprocessing import Process

In [2]: import os

In [3]: def run_proc(name):
   ...:     print('Run child process %s (%s)...' % (name, os.getpid()))
   ...: if __name__=='__main__':
   ...:     print('Parent process %s.' % os.getpid())
   ...:     p = Process(target=run_proc, args=('test',))
   ...:     print('Child process will start.')
   ...:     p.start()
   ...:     p.join()
   ...:     print('Child process end.')
   ...:
Parent process 4672.
Child process will start.
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "c:\users\administrator\appdata\local\programs\python\python36-32\lib\mul
tiprocessing\spawn.py", line 105, in spawn_main
    exitcode = _main(fd)
  File "c:\users\administrator\appdata\local\programs\python\python36-32\lib\mul
tiprocessing\spawn.py", line 115, in _main
    self = reduction.pickle.load(from_parent)
AttributeError: Can't get attribute 'run_proc' on <module '__main__' (built-in)>

Child process end.

p = Process(target=run_proc, args=('test',))没有执行并犯了错误其他人可以正确执行。我不知道为什么

什么问题使追溯（win7，python-3.6.1，进程，多处理）

0 个答案: