Steven, Thank you very much for your wonderful reply!!
I had read the Fine Manual, but as you pointed out the documentation only mentions visibility of file names. > Exclusive locks are advisory, not mandatory, on some operating systems, so > you can't rely on it. That comment and your list of OS specific behaviors were EXACTLY the type of information I was looking for. Thanks again! Malcolm -- http://mail.python.org/mailman/listinfo/python-list
