[New-bugs-announce] [issue41536] pathlib's Path("NUL:").resolve() throws an error on windows
Phillip Mackintosh
report at bugs.python.org
Wed Aug 12 22:29:57 EDT 2020
New submission from Phillip Mackintosh <phillmackintosh at gmail.com>:
I'm looking for the equivalent windows functionality to the posix `/dev/null` file, and I discovered `NUL:`
This snippet works on a windows OS, proving that it is indeed a writable file: `Path('NUL:').write_text('abcd')`
However, `Path('NUL:').resolve()` Throws an exception `OSError: [WinError 87] The parameter is incorrect: 'NUL:'`
Is this the expected behaviour? I.E. I should wrap the call to `resolve()` in a `try...except`?
If I catch all `OSError` types, how can I determine if it's a legitimate error or not?
E.G. Full console output:
Python 3.7.1 (v3.7.1:260ec2c36a, Oct 20 2018, 14:57:15) [MSC v.1915 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> from pathlib import Path
>>> Path('NUL:')
WindowsPath('NUL:')
>>> Path('NUL:').write_text('abcd')
4
>>> Path('NUL:').resolve()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Program Files\Python37\lib\pathlib.py", line 1134, in resolve
s = self._flavour.resolve(self, strict=strict)
File "C:\Program Files\Python37\lib\pathlib.py", line 192, in resolve
s = self._ext_to_normal(_getfinalpathname(s))
OSError: [WinError 87] The parameter is incorrect: 'NUL:'
----------
components: Windows
messages: 375289
nosy: paul.moore, phillmac, steve.dower, tim.golden, zach.ware
priority: normal
severity: normal
status: open
title: pathlib's Path("NUL:").resolve() throws an error on windows
type: behavior
versions: Python 3.7
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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue41536>
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