subprocess problem

Uri Nix Uri.Nix at gmail.com
Wed Sep 28 08:10:27 CEST 2005


Hi,

 I had a similar problem recently, and found that using pipes with
os.popen* helped in my case.
 You can check the thread at:
http://mail.python.org/pipermail/python-list/2005-September/300744.html.

Cheers,
 Uri

Do Re Mi chel La Si Do wrote:
> Hi!
>
> This script (under Win-XP + P-2.4.1) :
>      import subprocess
>      p1=subprocess.Popen(r'cmd /cdir *.* /S /W /B', stdout=subprocess.PIPE)
>      chaineretour=p1.stdout.read()
>
> run OK if called from DOS-console. But, from another Python's script (by COM
> + exec) give me an error.
>
> Here, the traceback :
>
> Traceback (most recent call last):
>  File "D:\dev\Python\ponx.py", line 4446, in PRun
>   exec(ccod,globals(),globals())
>  File "C:\Python24\lib\subprocess.py", line 546, in __init__
>    (p2cread, p2cwrite,
>  File "C:\Python24\lib\subprocess.py", line 606, in __get_handles__
>    p2cread =  self._make_inheritable(p2cread)
>  File "C:\Python24\lib\subprocess.py", line 647, in _make_inheritable
>    DUPLICATE_SAME_ACCESS)
> error: (6, 'DuplicateHandle','Descripteur non valide')
>
>
> I know the bug-signaled : http://python.org/sf/1124861
>
>
> But... a idea for a solution ?
> 
> Thanks, and sorry for my bad english.
> 
> 
> Michel Claveau




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