RetroBBS - comp.lang.python - Re: pathlib.Path.is_file vs os.path.isfile difference

Re: pathlib.Path.is_file vs os.path.isfile difference

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From: grant.b.edwards@gmail.com (Grant Edwards)
Newsgroups: comp.lang.python
Subject: Re: pathlib.Path.is_file vs os.path.isfile difference
Date: Fri, 8 Mar 2024 14:21:39 -0500 (EST)
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by: Grant Edwards - Fri, 8 Mar 2024 19:21 UTC

On 2024-03-08, Thomas Passin via Python-list <python-list@python.org> wrote:
> On 3/8/2024 1:03 PM, Albert-Jan Roskam via Python-list wrote:
>> Hi,
>> I was replacing some os.path stuff with Pathlib and I discovered this:
>> Path(256 * "x").is_file() # OSError
>> os.path.isfile(256 * "x") # bool
>> Is this intended? Does pathlib try to resemble os.path as closely as
>> possible?
>
> You must have an very old version of Python. I'm running 3.12.2 and it
> returns False.

It throws OSError with Python 3.11.8 on Linux.

$ python
Python 3.11.8 (main, Feb 23 2024, 16:11:29) [GCC 13.2.1 20240113] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import pathlib
>>> pathlib.Path(256 * "x").is_file()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python3.11/pathlib.py", line 1267, in is_file
return S_ISREG(self.stat().st_mode)
^^^^^^^^^^^
File "/usr/lib/python3.11/pathlib.py", line 1013, in stat
return os.stat(self, follow_symlinks=follow_symlinks)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
OSError: [Errno 36] File name too long: 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
>>>
>>> import os
>>> os.path.isfile(256 * "x")
False

I am not an Economist. I am an honest man! -- Paul McCracken

devel / comp.lang.python / Re: pathlib.Path.is_file vs os.path.isfile difference

Subject	Author
Re: pathlib.Path.is_file vs os.path.isfile difference	Grant Edwards