Call Python From Bat File And Get Return Code

The windows shell saves the return code in the ERRORLEVEL variable:

python somescript.pyecho %ERRORLEVEL%

In the python script you can exit the script and set the return value by calling exit():

exit(15)

In older versions of python you might first have to import the exit() function from the sys module:

from sys import exitexit(15)

Try:

import osos._exit(ret_value)

You should also check:

• sys.exit()

You can try this batch script for this:

@echo offREM     %1 - This is the parameter we pass with the desired return code for the Python script that will be captured by the ErrorLevel env. variable.  REM     A value of 0 is the default exit code, meaning it has all gone well. A value greater than 0 implies an errorREM     and this value can be captured and used for any error control logic and handling within the script   set ERRORLEVEL=set RETURN_CODE=%1echo (Before Python script run) ERRORLEVEL VALUE IS: [ %ERRORLEVEL% ]echo.call python -c "import sys; exit_code = %RETURN_CODE%; print('(Inside python script now) Setting up exit code to ' + str(exit_code)); sys.exit(exit_code)"echo.echo (After Python script run) ERRORLEVEL VALUE IS: [ %ERRORLEVEL% ]echo.

And when you run it a couple of times with different return code values you can see the expected behaviour:

PS C:\Scripts\ScriptTests> & '\TestPythonReturnCodes.cmd' 5(Before Python script run) ERRORLEVEL VALUE IS: [ 0 ](Inside python script now) Setting up exit code to 5(After Python script run) ERRORLEVEL VALUE IS: [ 5 ]PS C:\Scripts\ScriptTests> & '\TestPythonReturnCodes.cmd' 3(Before Python script run) ERRORLEVEL VALUE IS: [ 0 ](Inside python script now) Setting up exit code to 3(After Python script run) ERRORLEVEL VALUE IS: [ 3 ]PS C:\Scripts\ScriptTests