Skip to content

Instantly share code, notes, and snippets.

Last active Apr 27, 2020
What would you like to do?
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
Copy link

rcoup commented Jun 20, 2011

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

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

Copy link

edufelipe commented Jun 20, 2011

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

Copy link

achikin commented Jul 7, 2014

Good job, thanks!

Copy link

amp79 commented Sep 19, 2014

thank you for this.

Copy link

sachinkanekar commented May 14, 2015

thanks! That was helpful

Copy link

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)

Copy link

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.

Copy link

melon-boy commented Sep 19, 2018

Great implementation! Works perfect! Thanck you.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment