[Python-Dev] Does Python need a file locking module (slightly higher level)?

[Jon Ribbens]

On Tue, Oct 23, 2007 at 12:16:41PM +1300, Greg Ewing wrote:
> skip at pobox.com wrote:
> >     This interface follows the completely stupid semantics of System V and
> >     IEEE Std 1003.1-1988 (``POSIX.1'') that require that all locks
> >     associated with a file for a given process are removed when any file
> >     descriptor for that file is closed by that process....  Flock(2) is
> >     recommended for applications that want to ensure the integrity of their
> >     locks when using library routines or wish to pass locks to their
> >     children.
> > 
> > I guess the BSD folks were a bit upset when they wrote that.
> 
> That sounds more like something written by the GNU folks than
> the BSD folks.

It's from BSD. The earliest I can find it is 4.4BSD. It's still in the
latest versions of OpenBSD, NetBSD and FreeBSD.