多线程，无法运行Process命令 [英] Multithreading, can't run Process command

问题描述

我正在尝试以下代码:

#!/usr/bin/python
import multiprocessing

def f(name): 
print 'hello', name

if __name__ == '__main__':
    p = multiprocessing.Process(target=f, args=('bob',))
    p.start()
    p.join()

我得到的输出是:

Traceback (most recent call last):
  File "a.py", line 9, in <module>
    p = multiprocessing.Process(target=f, args=('bob',))
AttributeError: 'module' object has no attribute 'Process'

推荐答案

您正尝试从本地目录而不是python库import multiprocessing. python解释器首先尝试从当前目录导入模块.当目录中有一个名为multiprocessing.pyc的文件时，解释器将尝试导入该文件.因此，您遇到了错误.因此，删除multiprocessing.pyc将有助于解决您的问题.

You are trying to import multiprocessing from your local directory and not from the python library. The python interpreter first tries to import the module from the present directory. As you have got a file with the name multiprocessing.pyc in your directory, the interpreter is trying to import that. Hence you have got the error. Thus deleting multiprocessing.pyc will help resolve your problem.

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