[Python-bugs-list] [ python-Bugs-717614 ] Freebsd - Cannot open file discriptor 3
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Tue, 08 Apr 2003 09:50:53 -0700
Bugs item #717614, was opened at 2003-04-08 10:50
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Category: Python Library
Group: Python 2.2.2
Status: Open
Resolution: None
Priority: 5
Submitted By: Jim Ramsay (lack)
Assigned to: Nobody/Anonymous (nobody)
Summary: Freebsd - Cannot open file discriptor 3
Initial Comment:
For some reason on my FreeBSD system whenever I run
python I am unable to access file descriptor 3 or 4.
According to my system's fstat, there is a pipe there:
lack python 36683 3* pipe cd5b2cc0 <->
cd99f9e0 0 rw
lack python 36683 4* pipe cd99f9e0 <->
cd5b2cc0 0 rw
But I did not open this pipe, nor can I figure out
where it came from.
I also cannot close this file descriptor or use it in
any way - I recieve the error:
>>> os.close(3)
Traceback (most recent call last):
File "<stdin>", line 1, in ?
OSError: [Errno 9] Bad file descriptor
>>>
There is some strange behaviour if I close one of the
standard descriptors first:
>>> os.close(2)
>>> os.close(3)
>>> os.close(4)
>>>
But despite the lack of error messages, the pipe from 3
to 4 is still open.
I do not know why this happens. and am at a loss at how
to access FD#3.
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