Antoine Pitrou <pit...@free.fr> added the comment:

I don't think we will try to support O_DIRECT. First, it is a rather
platform-specific flag. Second, Python's memory allocator doesn't allow
specifying an arbitrary alignment value. Third, I don't even think
O_DIRECT can make a positive difference in a Python program (the open()
manpage actually warns against likely performance degradation when using
O_DIRECT).
So I'm closing this bug, sorry.

----------
nosy: +pitrou
resolution:  -> wont fix
status: open -> closed

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue5396>
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