[New-bugs-announce] [issue12262] Not Inheriting File Descriptors on Windows?

Jesse Litton report at bugs.python.org
Fri Jun 3 22:35:48 CEST 2011


New submission from Jesse Litton <3vi1jl at gmail.com>:

On Windows, I've been trying to call a test script that gets its I/O handled via file descriptors 3 & 4 

  socat EXEC:"python test.py userid",pty,fdin=3,fdout=4 TCP4:server:23,crlf

But I'm getting "[Errno 9] Bad file descriptor" when the python script attempts to os.fdopen(3, 'r').

I've tried just piping an echo's output redirected (3<&1 I think... though I might have that backwards as I've tried it every conceivable way) into the script, but I always get the bad file descriptor error.

I can create a pipe() in the program I can get an actual FD 3 & 4... but they seem to have no relation to the FD's that were set up by the invoking command-line/script.

I'm new to Python - is there something simple I'm overlooking, or is this a known bug that I just haven't been able to find in my last few hours of web searches?  I can't believe I would be the only one doing this type of redirection on Windows.

Thanks in advance for any guidance/resolution you can offer.

----------
components: Interpreter Core
messages: 137582
nosy: 3vi1
priority: normal
severity: normal
status: open
title: Not Inheriting File Descriptors on Windows?
type: behavior
versions: Python 3.1

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue12262>
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