问题描述
有以下简单代码:
from multiprocessing import Process, freeze_support def foo(): print 'hello' if __name__ == '__main__': freeze_support() p = Process(target=foo) p.start()
它在使用 Python 3.3 的 Linux 或 Windows 上运行良好,但在使用 Python 2.7 的 Windows 上失败.
It works good on Linux or Windows with Python 3.3, but fails on Windows with Python 2.7.
Traceback (most recent call last): File "<string>", line 1, in <module> File "c:Python27libmultiprocessingforking.py", line 346, in main prepare(preparation_data) File "c:Python27libmultiprocessingforking.py", line 454, in prepare assert main_name not in sys.modules, main_name AssertionError: thread
一般来说,我尝试的所有多处理示例都在该设置上失败.为什么?
Generally speaking, all multiprocessing examples i tried fail on that setup. Why?
推荐答案
这是一个已知的错误:
http://bugs.python.org/issue10845
不确定这是否会被移植到 2.7.X.
Not sure if this will ever get ported to 2.7.X.