On Tue, Aug 3, 2010 at 08:04, Steven D'Aprano <st...@pearwood.info> wrote: > On Tue, 3 Aug 2010 10:52:27 am Richard D. Moores wrote: >> On Mon, Aug 2, 2010 at 16:57, Steven D'Aprano <st...@pearwood.info> > wrote: >> > # File *probably* doesn't exist. Consider better error checking. >> >> Steve, before I dig into your detailed reply, please tell me what you >> meant by " # File *probably* doesn't exist. Consider better error >> checking.". > > open(pathname) will fail with an IOError for many reasons. It could be > that the file simply doesn't exist, so it can't be opened. It could be > that you don't have read permission, or that the disk is corrupt and > even though you have permission to open the file, attempting to do so > fails. > > For a simple script, it's acceptable to assume that the likely reason > for IOError is that the file isn't there, and therefore creating it > will solve the problem. But for a more solid program, you should > inspect the exception to determine the error code, and then take > appropriate action.
Ah. Got it. Thanks, Steven. Dick _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
