子进程 check_output 返回非零退出状态 1 [英] Subprocess check_output returned non-zero exit status 1

问题描述

这是我的python代码:

This is my python code:

import subprocess
subprocess.check_output("ls",shell=True,stderr=subprocess.STDOUT)

import subprocess
subprocess.check_output("yum",shell=True,stderr=subprocess.STDOUT)

第一个 .check_output() 运行良好，但第二个返回:

The first .check_output() works well, but the second returns this:

Traceback (most recent call last):
File "/usr/lib/x86_64-linux-gnu/gedit/plugins/pythonconsole/console.py", line 378, in __run
r = eval(command, self.namespace, self.namespace)
File "<string>", line 1, in <module>
File "/usr/lib/python3.4/subprocess.py", line 616, in check_output
raise CalledProcessError(retcode, process.args, output=output)
subprocess.CalledProcessError: Command 'yum' returned non-zero exit status 1

为什么会这样?是不是因为 ls 是原来的 shell 命令而 yum 是新的包?我怎么解决这个问题?

Why does this happen? Is it because ls is the original shell command but yum is the new package? How can I solve this problem?

推荐答案

您启动的命令 yum 已正确执行.它返回一个非零状态，这意味着在处理命令期间发生了错误.您可能想在 yum 命令中添加一些参数来解决这个问题.

The command yum that you launch was executed properly. It returns a non zero status which means that an error occured during the processing of the command. You probably want to add some argument to your yum command to fix that.

您的代码可能会以这种方式显示此错误:

Your code could show this error this way:

import subprocess
try:
    subprocess.check_output("dir /f",shell=True,stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
    raise RuntimeError("command '{}' return with error (code {}): {}".format(e.cmd, e.returncode, e.output))

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