[Tutor] try and file existence
steve at pearwood.info
Sun Aug 16 11:52:45 CEST 2015
On Sat, Aug 15, 2015 at 07:04:47PM -0500, boB Stepp wrote:
> On Sat, Aug 15, 2015 at 6:41 PM, Steven D'Aprano <steve at pearwood.info> wrote:
> > On Sat, Aug 15, 2015 at 02:24:21PM -0500, boB Stepp wrote:
> >> I understand your points, but wonder then what is the intended use for
> >> os.path.exists()? That is, in what types of circumstances would it be
> >> both appropriate and safe to use?
> > def print_file_names(possible_names):
> > print("List of file names checked")
> > print("--------------------------"
> > for name in possible_names:
> > if os.path.exists(name):
> > print(name)
> > else:
> > print("missing:", name)
> Your example, giving about the most benign possible uses, is for emphasis?
Well, not really. I was trying to think of a case where you want to
check whether a file exists but not actually open the file (or at
least, not open the file *yet*).
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