[ python-Bugs-1675026 ] Redirect cause invalid descriptor error

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Bugs item #1675026, was opened at 2007-03-06 16:58
Message generated for change (Comment added) made by theller
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Category: Windows
Group: Python 2.5
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Jean-Marc Ranger (jmranger)
Assigned to: Nobody/Anonymous (nobody)
Summary: Redirect cause invalid descriptor error

Initial Comment:
Test setup:
- Windows 2000 (french)
- Python 2.5 (reproducible with 2.4.2 and 2.4.4)

One python source file, test.py:
---
  import os
  print os.system("echo test")
---

Console output:
---
C:\test>test.py
test
0

C:\test>test.py > test.log
Descripteur non valide

C:\test>type test.log
0

C:\test>c:\python25\python test.py
test
0

C:\test>c:\python25\python test.py > test.log

C:\test>type test.log
test
0

C:\test>
---

The "Descripteur non valide" error would translate to "invalid file descriptor".

I would expect the 2nd call to perform the same way the 4th does.


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>Comment By: Thomas Heller (theller)
Date: 2007-03-09 09:25

Message:
Logged In: YES 
user_id=11105
Originator: NO

This is a windows bug.  See the Microsoft Knowledge Base:

http://support.microsoft.com/kb/321788

This entry talks about Windows 2000.  I do not use Windows 2000 anymore,
so I cannot test on this version.  I have created the registry entry that
is mentioned on WinXP SP2 (German version, fwiw), and it does fix the
problem.  I had to open a new command window after changing the registry.

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Comment By: Martin v. Löwis (loewis)
Date: 2007-03-09 08:10

Message:
Logged In: YES 
user_id=21627
Originator: NO

Do you have an explanation for the cause of the problem?

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