This module is an interface to the
open(),read(),write() and close() system calls on a
Direct I/O context (O_DIRECT flag to the open() system
call).
  The O_DIRECT flag allows to open a file in "direct"
mode -- effectively bypassing the buffer-cache. This
behaviour is generally not a good thing since it will
strongly degrade performances, but it can be desirable
for some purposes (benchmark, or optimized read of many
concurrent video streams, for instance). A special
interface is needed, since the read() system calls
requires aligned buffers when used on O_DIRECT file
descriptors. And since the flag O_DIRECT is not
available with the os module, we decided to write this
module.

  We would like to know if this is worth for inclusion
in the standard Python distribution? What should be
modified to make it more "compliant" to the python
rules? This file will probably need to be updated to
conform to python style standards.

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The major problem with this module is that it is LGPL; for inclusion in the 
library, a contribution form to the PSF would be required and your license be 
changed.

In any case, it's not clear what the applicability of this specialized API is. My 
suggestion would be to package it up with distutils and put it on the 
Cheeseshop (cheeseshop.python.org). When there is an established user 
base, and demand that it be included in the standard distribution, inclusion 
should be discussed on python-dev.