Run a bat file using python code

Question

I try to run a  bat file in Windows using Python script   ask bat file   Application exe work xml   I write Python code    import os os system  D  xxx1 xxx2XMLnew otr bat      Output  when try to run the file its just give a blink of the command prompt  and the work is not performing   Note  I try with alternate slash also   but it is not working   And I also want to save output of the file in another file   Can anyone suggest how can I make the script runnable

User · Answer

This has already been answered in detail on SO. Check out this thread, It should answer all your questions: Executing a subprocess fails

I've tried it myself with this code:

batchtest.py

from subprocess import Popen
p = Popen("batch.bat", cwd=r"C:\Path\to\batchfolder")
stdout, stderr = p.communicate()

batch.bat

echo Hello World!
pause

I've got the batchtest.py example from the aforementioned thread.

User · Answer

import subprocess  filepath  D  path to batch myBatch bat  p   subprocess Popen filepath  shell True  stdout   subprocess PIPE   stdout  stderr   p communicate   print p returncode   is 0 if success

User · Answer

If you are trying to call another exe file inside the bat-file  You must use SET Path inside the bat-file that you are calling  set Path should point into the directory there the exe-file is located   set PATH C   C  DOS      Sets C   C  DOS as the current search path

User · Answer

python test py      import subprocess a   subprocess check output  batch 1 bat   print a   This gives output from batch file to be print on the python IDLE running console  So in batch file you can echo the result in each step to debug the issue  This is also useful in automation when there is an error happening in the batch call  to understand and locate the error easily  put  echo off  in batch file beginning to avoid printing everything   batch 1 bat  echo off     echo  Hello World   md newdir  echo  made new directory

User · Answer

Probably the simplest way to do this is -   import os os chdir  X  Enter location of  bat file   os startfile  ask bat

User · Answer

You are just missing to make it raw  The issue is with      Adding r before the path would do the work     import os os system r D  xxx1 xxx2XMLnew otr bat

User · Answer

So I do in Windows 10 and Python 3 7 1  tested    import subprocess Quellpfad   r C  Users MeMySelfAndI Desktop  Quelldatei   r  a bat  Quelle   Quellpfad   Quelldatei print Quelle  subprocess call Quelle

User · Answer

It is better to write  bat file in such way that its running is not dependent on current working directory  i e  I recommend to put this line at the beginning of  bat file   cd    dp0   Enclose filepath of  bat file in double quotes  i e    os system   D   x  so here can be spaces  otr bat     lt arg0 gt      lt arg1 gt            To save output of some batch command in another file you can use usual redirection syntax  for example   os system      bat   gt  outputfilename txt     Or directly in your  bat file   Application exe work xml  gt  outputfilename txt

User · Answer

Replace   with   in the path   import os os system  D  xxx1 xxx2XMLnew otr bat

[python] Run a .bat file using python code

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