Popen和Python [英] Popen and python

问题描述

正在处理一些代码，在命令提示符下运行它时出现错误消息...

Working on some code and I'm given the error when running it from the command prompt...

NameError: name 'Popen' is not defined

但是我已经导入了import os和import sys.

这是代码的一部分

exepath = os.path.join(EXE File location is here)
exepath = '"' + os.path.normpath(exepath) + '"'
cmd = [exepath, '-el', str(el), '-n', str(z)]

print 'The python program is running this command:'
print cmd

process = Popen(cmd, stderr=STDOUT, stdout=PIPE)
outputstring = process.communicate()[0]

我缺少基本的东西吗?我不会怀疑.谢谢！

Am I missing something elementary? I wouldn't doubt it. Thanks!

推荐答案

您应该这样做:

import subprocess
subprocess.Popen(cmd, stderr=subprocess.STDOUT, stdout=subprocess.PIPE)
# etc.

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