On Wed, Oct 28, 2009 at 10:01 PM, Peng Yu <pengyu...@gmail.com> wrote:
> I want to raise an exception when os.path.exists fails. I looked
> through the exception list on the menu. I'm not sure if IOError is the
> most appropriate exception I should use. Could somebody let me know?
Yeah, I'd say IOError:
Python 2.6.2 (r262:71600, May 14 2009, 16:34:51)
[GCC 4.0.1 (Apple Inc. build 5484)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> f=file('nonexistent', 'r')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
IOError: [Errno 2] No such file or directory: 'nonexistent'
ValueError would also be a justifiable choice; the caller gave a value
for a filepath that was invalid in that it was non-existent.
Cheers,
Chris
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