Re: [PATCH] libbtrfsutil: python: fix build on Python 3.13

[David Sterba <dsterba@suse.cz>]

On Thu, Jul 25, 2024 at 04:28:35PM -0700, Omar Sandoval wrote:
> From: Omar Sandoval <osandov@fb.com>
> 
> Python 3.13, currently in beta, removed the internal
> _PyObject_LookupSpecial function. The libbtrfsutil Python bindings use
> it in the path_converter() function because it was based on internal
> path_converter() function in CPython [1]. This is causing build failures
> on Fedora Rawhide [2] and Gentoo [3]. Replace path_converter() with a
> version that only uses public functions based on the one in drgn [4].
> 
> 1: https://github.com/python/cpython/blob/d9efa45d7457b0dfea467bb1c2d22c69056ffc73/Modules/posixmodule.c#L1253
> 2: https://bugzilla.redhat.com/show_bug.cgi?id=2245650
> 3: https://github.com/kdave/btrfs-progs/issues/838
> 4: https://github.com/osandov/drgn/blob/9ad29fd86499eb32847473e928b6540872d3d59a/libdrgn/python/util.c#L81
> 
> Reported-by: Neal Gompa <neal@gompa.dev>
> Reported-by: Sam James <sam@gentoo.org>
> Signed-off-by: Omar Sandoval <osandov@fb.com>

Thanks, this is more convoluted than I expected. Does this work on other
python versions, like 3.8 and above? I'd have to check what's the lowest
expected python version derived from the base line for distro support so
3.6 is just a guess.