[BangPypers] Fwd: Issue with subprocess Module

tarun tarundevnani at gmail.com
Wed Apr 8 08:21:42 CEST 2009

---------- Forwarded message ----------
From: tarun <tarundevnani at gmail.com>
Date: Wed, Apr 8, 2009 at 10:30 AM
Subject: Fwd: Issue with subprocess Module
To: bangpypers at python.org

---------- Forwarded message ----------
From: tarun <tarundevnani at gmail.com>
Date: Tue, Apr 7, 2009 at 4:34 PM
Subject: Issue with subprocess Module
To: python-list at python.org

Hello All,

I've a batch file to be  invoke using a python script. The batch file has
pause, and the time, I need to send some command to the batch file from my
scripts. I placed both, the batch file (test.bat) and the python script
(test.py) in the same folder. And executed 'test.py'

(Please find the source files and error below).

*I get the following error:*
Traceback (most recent call last):
  File "<string>", line 74, in run_nodebug
  File "D:\test.py", line 4, in <module>
    proc = subprocess.Popen(my_bat,stdin=subprocess.PIPE)
  File "C:\Python25\lib\subprocess.py", line 588, in __init__
    errread, errwrite) = self._get_handles(stdin, stdout, stderr)
  File "C:\Python25\lib\subprocess.py", line 717, in _get_handles
    c2pwrite = self._make_inheritable(c2pwrite)
  File "C:\Python25\lib\subprocess.py", line 746, in _make_inheritable
WindowsError: [Error 6] The handle is invalid

*Python Script:*
import subprocess,os
my_bat = os.getcwd()+'\\test.bat'
proc = subprocess.Popen(my_bat,stdin=subprocess.PIPE)
input = '\n'

*Batch File*
echo "START'
echo 'END'
Please help me with this issue.

Thanks In Advance,
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