Eryk Sun <eryk...@gmail.com> added the comment:
os.stat() was redesigned in issue 37834, which entailed extensive updates
across the standard library to improve support for Windows reparse points. As
part of this, Win32JunctionTests.tearDown() was changed to use a more reliable
lexists() check, which resolves this issue.
FYI, the new implementation of os.stat() supports an ImDisk virtual disk
(v2.0.9 from 2015-12). In the following example, "junctest" is a mountpoint
(junction) in an NTFS filesystem. The filesystem is mounted on an ImDisk
device, as seen its VOLUME_NAME_NT (2) path:
>>> flags = win32file.FILE_FLAG_OPEN_REPARSE_POINT
>>> flags |= win32file.FILE_FLAG_BACKUP_SEMANTICS
>>> h = win32file.CreateFile('junctest', 0, 0, None, 3, flags, None)
>>> win32file.GetFinalPathNameByHandle(h, 2)
'\\Device\\ImDisk0\\junctest'
stat() traverses the mountpoint:
>>> os.stat('junctest').st_reparse_tag == 0
True
lstat() opens the mountpoint:
>>> os.lstat('junctest').st_reparse_tag == stat.IO_REPARSE_TAG_MOUNT_POINT
True
This version of Imdisk doesn't support the mountpoint manager, so trying to get
the VOLUME_NAME_DOS (0) name of r"\Device\ImDisk0" (e.g. r"\\?\R:") still fails
the same as before:
>>> win32file.GetFinalPathNameByHandle(h, 0)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
pywintypes.error: (1, 'GetFinalPathNameByHandle', 'Incorrect function.')
But os.stat() no longer needs it.
----------
resolution: -> fixed
stage: -> resolved
status: open -> closed
superseder: -> readlink on Windows cannot read app exec links
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue26658>
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