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Thu Dec 2 16:50:51 CET 2010 · https://mail.python.org/pipermail/python-dev/2010-December/106270.html

On 2010/11/27 5:31, Brian Curtin wrote:
> On Fri, Nov 26, 2010 at 14:18, Hirokazu Yamamoto<ocean-city at m2.ccsnet.ne.jp
>> wrote:
>
>> On 2010/11/27 5:02, Brian Curtin wrote:
>>
>>> We briefly chatted about this on the os.link
>>> feature issue, but I never found a way around it.
>>>
>>
>> How about implementing os.path.samefile in
>> Modules/posixmodule.c like this?
>>
>> http://bugs.python.org/file19262/py3k_fix_kill_python_for_short_path.patch
>>
>> # I hope this works.
>>
>
> That's almost identical to what the current os.path.sameopenfile is.
>
> Lib/ntpath.py opens both files, then compares them via _getfileinformation.
> That function is implemented to take in a file descriptor, call
> GetFileInformationByHandle with it, then returns a tuple
> of dwVolumeSerialNumber, nFileIndexHigh, and nFileIndexLow.
>

Yes. Difference is, file object cannot represent directory,
and probably FILE_FLAG_BACKUP_SEMANTICS makes it faster to open file.

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[Python-Dev] [Python-checkins] r86817 - python/branches/py3k-stat-on-windows/Lib/test/test_shutil.py