How to get both return code and output from subprocess in Python? -

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• subprocess.check_output return code 2 answers

while developing python wrapper library android debug bridge (adb), i'm using subprocess execute adb commands in shell. here simplified example:

import subprocess  ...  def exec_adb_command(adb_command):     return = subprocess.call(adb_command) 

if command executed propery exec_adb_command returns 0 ok.

but adb commands return not "0" or "1" generate output want catch also. adb devices example:

d:\git\adb-lib\test>adb devices list of devices attached 07eeb4bb        device 

i've tried subprocess.check_output() purpose, , return output not return code ("0" or "1").

ideally want tuple t[0] return code , t[1] actual output.

am missing in subprocess module allows such kind of results?

thanks!

popen , communicate allow output , return code.

from subprocess import popen,pipe,stdout  out = popen(["adb", "devices"],stderr=stdout,stdout=pipe)  t = out.communicate()[0],out.returncode print(t) ('list of devices attached \n\n', 0) 

check_output may suitable, non-zero exit status raise calledprocesserror:

from subprocess import check_output, calledprocesserror  try:     out = check_output(["adb", "devices"])     t = 0, out except calledprocesserror e:     t = e.returncode, e.message 

you need redirect stderr store error output:

from subprocess import check_output, calledprocesserror  tempfile import temporaryfile  def get_out(*args):     temporaryfile() t:         try:             out = check_output(args, stderr=t)             return  0, out         except calledprocesserror e:             t.seek(0)             return e.returncode, t.read() 

just pass commands:

in [5]: get_out("adb","devices") out[5]: (0, 'list of devices attached \n\n')  in [6]: get_out("adb","devices","foo") out[6]: (1, 'usage: adb devices [-l]\n')