用subprocess.Popen在Python中检查进程的状态 [英] checking status of process with subprocess.Popen in Python

问题描述

如果我在Python中使用subprocess.Popen调用进程，如下所示:

If I invoke a process with subprocess.Popen in Python as follows:

myproc = subprocess.Popen(...).communicate()

查看其状态的正确方法是什么?

what is the correct way to see its status? Not its output to stdout or stderr, but its exit status once it's finished (e.g. 0 for success or another for failure)?

推荐答案

returncode确实是答案，但是解决方案不必太复杂.

returncode is indeed the answer, but the solution doesn't need to be complicated.

process = subprocess.Popen(...)
stdoutdata, stderrdata = process.communicate()
print process.returncode

Python subprocess文档中的更多信息.

More info in the Python subprocess docs.

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