无法在PythonWin中运行任何多进程脚本

Question

我更新了这个问题，想展示我在一个多进程脚本中遇到的问题。这个脚本在PythonWin中按F5运行时不工作，但在命令提示符下却能正常运行。

"""
File Name: simple multiprocess example.py
Description:
A very basic multiprocessing script to show the use of daemon.
There are two processes:-
p1 - calls listen() and runs in the background (daemon = True)
p2 - calls write()
"""
import multiprocessing
import time
import sys

def listen():
    p = multiprocessing.current_process()
    p_name = str(p.name)
    pid = str(p.pid)
    while 1:
        print "%s process with PID %s running: %s" % (p_name, pid, time.asctime())
        time.sleep(1)
    print 'Exiting :', p.name, p.pid

def write():
    p = multiprocessing.current_process()
    p_name = str(p.name)
    pid = str(p.pid)
    for x in xrange(3):
        print "%s process with PID %s running: %s" % (p_name, pid, time.asctime())
        time.sleep(1)
    print 'Exiting :', p.name, p.pid

if __name__ == '__main__':
    p1 = multiprocessing.Process(name='listen', target=listen)
    p1.daemon = True

    p2 = multiprocessing.Process(name='write', target=write)
    p2.daemon = False

    p1.start()

    p2.start()
    time.sleep(7)

当我在PythonWin中按F5运行上面的脚本时，会弹出一个消息框（标题是“Python for Win32”），提示“无法从 -c 加载文件”，这里的 -c 后面跟着的是我的文件名和完整路径。

但是，当我在命令提示符下运行同样的脚本时，它似乎完全正常，没有任何问题。我在命令提示符下运行时得到的输出是:-

s>"simple multiprocess example.py"
listen process with PID 4564 running: Tue Jan 04 09:32:49 2011
write process with PID 3744 running: Tue Jan 04 09:32:49 2011
listen process with PID 4564 running: Tue Jan 04 09:32:50 2011
write process with PID 3744 running: Tue Jan 04 09:32:50 2011
listen process with PID 4564 running: Tue Jan 04 09:32:51 2011
write process with PID 3744 running: Tue Jan 04 09:32:51 2011
listen process with PID 4564 running: Tue Jan 04 09:32:52 2011
Exiting : write 3744
listen process with PID 4564 running: Tue Jan 04 09:32:53 2011
listen process with PID 4564 running: Tue Jan 04 09:32:54 2011
listen process with PID 4564 running: Tue Jan 04 09:32:55 2011

我在网上找不到与这个问题相关的任何信息。谢谢大家的帮助！！

Amit

附言：我是在Windows XP上运行，使用的是PythonWin和Python 2.6.4版本。

脚本运行 windows xp 版本兼容性开发环境命令提示符多进程错误提示 PythonWin

无法在PythonWin中运行任何多进程脚本

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