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Thu Dec 2 18:34:27 CET 2010 · https://mail.python.org/pipermail/python-dev/2010-December/106275.html

On 12/2/2010 4:32 AM, Nick Coghlan wrote:
> On Thu, Dec 2, 2010 at 5:05 PM, terry.reedy<python-checkins at python.org>  wrote:
(except I did not write most of the patch)

>> +   If
>> +   the target directory with the same mode as we specified already exists,
>> +   raises an :exc:`OSError` exception if *exist_ok* is False, otherwise no
>> +   exception is raised.  If the directory cannot be created in other cases,
>> +   raises an :exc:`OSError` exception.
>
> I would suggest being explicit here that "directory exists, but has a
> mode other than the one requested" always triggers an exception.
> Perhaps something like the following:
>
> "Raises an :exc:`OSError` exception if the target directory already
> exists, unless *exist_ok* is True and the existing directory has the
> same mode as is specified in the current call.  Also raises an
> :exc:`OSError` exception if the directory cannot be created for any
> other reason."

Georg has already patched that paragraph. I will let him decide if any 
further change is needed.

Terry

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[Python-Dev] [Python-checkins] r86930 - in python/branches/py3k: Doc/library/os.rst Lib/os.py Lib/test/test_os.py Misc/ACKS Misc/NEWS