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@edufelipe
Last active Apr 27, 2020
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Backport of subprocess.check_output() from Python 2.7 to Python 2.6
import subprocess
def check_output(*popenargs, **kwargs):
r"""Run command with arguments and return its output as a byte string.
Backported from Python 2.7 as it's implemented as pure python on stdlib.
>>> check_output(['/usr/bin/python', '--version'])
Python 2.6.2
"""
process = subprocess.Popen(stdout=subprocess.PIPE, *popenargs, **kwargs)
output, unused_err = process.communicate()
retcode = process.poll()
if retcode:
cmd = kwargs.get("args")
if cmd is None:
cmd = popenargs[0]
error = subprocess.CalledProcessError(retcode, cmd)
error.output = output
raise error
return output
@rcoup
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rcoup commented Jun 20, 2011

raise subprocess.CalledProcessError(retcode, cmd, output=output)

CalledProcessError doesn't take kwargs in earlier versions of Python...

@edufelipe
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edufelipe commented Jun 20, 2011

@rcoup Thanks for the report. Updated the gist so the output is set the right way.

@achikin
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achikin commented Jul 7, 2014

Good job, thanks!

@amp79
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amp79 commented Sep 19, 2014

thank you for this.

@sachinkanekar
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sachinkanekar commented May 14, 2015

thanks! That was helpful

@busbey
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busbey commented Apr 16, 2016

What are the license terms for your backport work? Could it be "under the same terms as Python 2.7" or "PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2"? (ref: said license)

@busbey
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busbey commented Apr 24, 2016

Ping @edufelipe. We'd like to use this in the YCSB project, but without a license we'll reimplemented our own.

@melon-boy
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melon-boy commented Sep 19, 2018

Great implementation! Works perfect! Thanck you.

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