Python subprocess.checkoutput称为处理错误

Question

In the windows command line, I enter the follow command to enable a windows feature:

>dism.exe -online -Enable-Feature -FeatureName:MSMQ-HTTP

This command works just fine and enables the MSMQ-HTTP feature. Now I'm writing a Python script to automate this process, my code

subprocess.check_output(['dism.exe', '-online', '-Enable-Feature', '-FeatureName:MSMQ-HTTP'], shell=True)

returns a nasty error, CalledProcessError: Command '['dism.exe', '-online', '-Enable-Feature', '-FeatureName:MSMQ-HTTP']' returned non-zero exit status 11.

Can anyone shed some light as to why this isn't working?

Answer 1

There were some bitness issues going on with Python's subprocess module and DISM.exe. Even when specifying the C:\\Windows\\system32\\dism.exe absolute path I was getting Error Code 11.

My eventual solution was to write a 10 line batch file:

@echo off
if EXIST %WINDIR%\system32\dism.exe ( 
  set DISM=%WINDIR%\system32\dism.exe 
) 
if EXIST %WINDIR%\SysNative\dism.exe ( 
  set DISM=%WINDIR%\SysNative\dism.exe 
)
%DISM% -online -Enable-Feature -FeatureName:MSMQ-ADIntegration
%DISM% -online -Enable-Feature -FeatureName:MSMQ-HTTP
%DISM% -online -Enable-Feature -FeatureName:MSMQ-Triggers

This little batch file is called from my Python script via subprocess:

def MSMQ():
    p = subprocess.Popen(r"PrereqInstall\SetMSMQFeatures.bat", shell=True)
    stout, stderr = p.communicate()