BSD version of ctypes.util.find_library

[josuah]

Bug report

#44314 improves the support for find_library() under BSD systems.
Although, find_library() returns a filename instead of a full path, unlike the comment stated at the top of the implementation:

find_library(name) returns the pathname of a library, or None.

% python
Python 3.9.13 (main, May 26 2022, 16:26:43)
[Clang 13.0.0 ] on openbsd7
Type "help", "copyright", "credits" or "license" for more information.
>>> from ctypes.util import find_library
>>> find_library('python3.9')
'libpython3.9.so.0.0'
>>>

Your environment

• CPython versions tested on: % Python 3.9.13
• Operating system and architecture: OpenBSD lap1.josuah.net 7.1 GENERIC.MP#3 amd64

[aisk]

Hi, find_library on Linux has the same behavior, which also returns the filename instead of the full path as the document shows:

>>> from ctypes.util import find_library
>>> find_library("m")
'libm.so.6'
>>> find_library("c")
'libc.so.6'
>>> find_library("bz2")
'libbz2.so.1.0'

So I think pathname just means filename, whether it's a full name or not.

[josuah]

Thank you for confirming this. I can reproduce, so the bug I encountered might be rooting from somewhere else.
I think this can be closed then. Sorry for overlooking this, and thank you for testing!