[New-bugs-announce] [issue38822] Inconsistent os.stat behavior for directory with Access Denied

[CrouZ]

New submission from CrouZ <alfred.theorin at gmail.com>:

After upgrading some scripts from Python 2.7 to 3.7 in Windows 10, I got different behavior that seems to be caused by inconsistent behavior for os.stat in Python 3.7.

Python 2.7:
>>> os.stat("D:\\System Volume Information")
nt.stat_result ...
>>> os.stat("D:\\System Volume Information\\")
nt.stat_result ... (same as previous call)

Python 3.7:
>>> os.stat("D:\\System Volume Information")
os.stat_result ...
>>> os.stat("D:\\System Volume Information\\")
Traceback ...
PermissionError: [WinError 5] Access is denied: 'D:\\System Volume Information\\'



What I really do is calling:
>>> os.path.exists("D:\\System Volume Information\\")
False (Unexpected and inconsistent. I expect the return value to be True.)

Behavior for other calls:
>>> os.path.exists("D:\\System Volume Information")
True (OK)
>>> os.path.isdir("D:\\System Volume Information\\")
True (OK, but according to the documentation "Return True if path is an existing directory." where 'existing' links to os.path.exists, which returns False)

The closest issue I could find was Issue28075 which has already been fixed.

----------
components: Windows
messages: 356763
nosy: CrouZ, paul.moore, steve.dower, tim.golden, zach.ware
priority: normal
severity: normal
status: open
title: Inconsistent os.stat behavior for directory with Access Denied
type: behavior
versions: Python 3.7

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue38822>
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