出现错误 - AttributeError: 'module' object has no attribute 'run' while running subprocess.run(["ls", "-l"]) [英] Getting an error - AttributeError: 'module' object has no attribute 'run' while running subprocess.run(["ls", "-l"])

问题描述

我在 AIX 6.1 上运行并使用 Python 2.7.想要执行以下行，但出现错误.

I am running on a AIX 6.1 and using Python 2.7. Want to execute following line but getting an error.

subprocess.run(["ls", "-l"])
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'module' object has no attribute 'run'

推荐答案

subprocess.run()函数只存在于Python 3.5及更新版本.

The subprocess.run() function only exists in Python 3.5 and newer.

然而，向后移植很容易:

It is easy enough to backport however:

def run(*popenargs, **kwargs):
    input = kwargs.pop("input", None)
    check = kwargs.pop("handle", False)

    if input is not None:
        if 'stdin' in kwargs:
            raise ValueError('stdin and input arguments may not both be used.')
        kwargs['stdin'] = subprocess.PIPE

    process = subprocess.Popen(*popenargs, **kwargs)
    try:
        stdout, stderr = process.communicate(input)
    except:
        process.kill()
        process.wait()
        raise
    retcode = process.poll()
    if check and retcode:
        raise subprocess.CalledProcessError(
            retcode, process.args, output=stdout, stderr=stderr)
    return retcode, stdout, stderr

不支持超时，也不支持完成进程信息的自定义类，所以我只返回 retcode、stdout 和 stderr信息.否则它和原来的一样.

There is no support for timeouts, and no custom class for completed process info, so I'm only returning the retcode, stdout and stderr information. Otherwise it does the same thing as the original.

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