Message330371
I'm writing a program taking paths from user input through CLI.
`path` is a pathlib.Path().
Since Windows doesn't expand asterisks, I check if the path doesn't exist. If so I expand using Path().glob(path).
Unfortunately on Windows, if `path` (type: Path) contains asterisks, checking `path.exists()` or `path.is_dir()` raises WinError 123.
Python 3.7.0 (default, Jun 28 2018, 08:04:48) [MSC v.1912 64 bit (AMD64)] :: Anaconda, Inc. on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> from pathlib import Path
>>> Path('*').exists()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Users\jimbo1qaz\Miniconda3\envs\python37\lib\pathlib.py", line 1318, in exists
self.stat()
File "C:\Users\jimbo1qaz\Miniconda3\envs\python37\lib\pathlib.py", line 1140, in stat
return self._accessor.stat(self)
OSError: [WinError 123] The filename, directory name, or volume label syntax is incorrect: '*'
>>> Path('*').is_dir()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Users\jimbo1qaz\Miniconda3\envs\python37\lib\pathlib.py", line 1330, in is_dir
return S_ISDIR(self.stat().st_mode)
File "C:\Users\jimbo1qaz\Miniconda3\envs\python37\lib\pathlib.py", line 1140, in stat
return self._accessor.stat(self)
OSError: [WinError 123] The filename, directory name, or volume label syntax is incorrect: '*'
I also reproduced on Miniconda 3.6.6, 3.7.0, and official Python 3.7.1.
According to https://bugs.python.org/issue29827 , os.path.exists() (not Path.exists() ) returns False on any OSError.
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On Linux, checking paths with null bytes (a less common occurrence) raises a different error:
>>> import pathlib
>>> pathlib.Path("\x00").exists()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python3.6/pathlib.py", line 1336, in exists
self.stat()
File "/usr/lib/python3.6/pathlib.py", line 1158, in stat
return self._accessor.stat(self)
File "/usr/lib/python3.6/pathlib.py", line 387, in wrapped
return strfunc(str(pathobj), *args)
ValueError: embedded null byte |
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Date |
User |
Action |
Args |
2018-11-24 05:55:59 | jimbo1qaz_ | set | recipients:
+ jimbo1qaz_ |
2018-11-24 05:55:59 | jimbo1qaz_ | set | messageid: <1543038959.25.0.788709270274.issue35306@psf.upfronthosting.co.za> |
2018-11-24 05:55:59 | jimbo1qaz_ | link | issue35306 messages |
2018-11-24 05:55:58 | jimbo1qaz_ | create | |
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