Python子进程帮助

Question

我正在测试python子进程,我不断收到此错误:

$ python subprocess-test.py 
Traceback (most recent call last):
  File "subprocess-test.py", line 3, in <module>
    p = subprocess.Popen(['rsync', '-azP', 'rsync://cdimage.ubuntu.com/cdimage/daily-live/current/maverick-desktop-amd64.iso', '/home/roaksoax/Desktop/iso'], stdout=subprocess.PIPE)
AttributeError: 'module' object has no attribute 'Popen'

我的脚本是:

import subprocess
p = subprocess.Popen(['rsync', '-azP', 'rsync://cdimage.ubuntu.com/cdimage/daily-live/current/maverick-desktop-amd64.iso', '/home/testing/maverick.iso'], stdout=subprocess.PIPE)

你们知道会发生什么吗？

Answer 1

狂野猜测:你有自己的文件叫做subprocess.py,它掩盖了标准的库模块.

你怎么看这个？:

import subprocess
print subprocess.__file__

这将显示正在导入的文件subprocess.