On 09May2013 19:54, Greg Ewing <greg.ew...@canterbury.ac.nz> wrote: | Steven D'Aprano wrote: | >There is no sensible use-case for creating a file without opening | >it. What would be the point? | | Early unix systems often used this as a form of locking.
Not just early systems: it's a nice lightweight method of making a lockfile even today if you expect to work over NFS, where not that many things are synchronous. You open a file with "0" modes, so that it is _immediately_ not writable. Other attempts to make the lock file thus fail because of the lack of write, even over NFS. Cheers, -- Cameron Simpson <c...@zip.com.au> You can listen to what everybody says, but the fact remains that you've got to get out there and do the thing yourself. - Joan Sutherland -- http://mail.python.org/mailman/listinfo/python-list
