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Date: Tue, 19 May 2015 07:59:00 -0500
Subject: fork/exec & close file descriptors
From: Skip Montanaro <skip.montanaro@gmail.com>
To: Python <python-list@python.org>
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Due to presumed bugs in an underlying library over which I have no control,
I'm considering a restart in the wee hours of the morning. The basic
fork/exec dance is not a problem, but how do I discover all the open file
descriptors in the new child process to make sure they get closed? Do I
simply start at fd 3 and call os.close() on everything up to some largish
fd number? Some of these file descriptors will have been opened by stuff
well below the Python level, so I don't know them a priori.

Thx,

Skip

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<div dir=3D"ltr">Due to presumed bugs in an underlying library over which I=
 have no control, I&#39;m considering a restart in the wee hours of the mor=
ning. The basic fork/exec dance is not a problem, but how do I discover all=
 the open file descriptors in the new child process to make sure they get c=
losed? Do I simply start at fd 3 and call os.close() on everything up to so=
me largish fd number? Some of these file descriptors will have been opened =
by stuff well below the Python level, so I don&#39;t know them a priori.<di=
v><br></div><div>Thx,</div><div><br></div><div>Skip</div><div><br></div></d=
iv>

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