[Python-Dev] PEP 433: Add cloexec argument to functions creating file descriptors (original) (raw)

Victor Stinner victor.stinner at gmail.com
Thu Jan 17 14:02:45 CET 2013

2013/1/13 Jeff Allen <ja...py at farowl.co.uk>:

I think io, meaning io and pyio really, would be amongst the impacted modules, and should perhaps be in the examples. (I am currently working on the Jython implementation of the io module.) It seems to me that io.open, and probably all the constructors, such as io.FileIO, would need the extra information as a mode or a boolean argument like closefd. This may be a factor in your choice above.

open() is listed in the PEP: open is io.open. I plan to add cloexec parameter to open() and FileIO constructor (and so io.open and _pyio.open). Examples:

rawfile = io.FileIO("test.txt", "r", cloexec=True) textfile = open("text.txt", "r", cloexec=True)

I started an implementation, you can already test FileIO and open(): http://hg.python.org/features/pep-433

Victor

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