Hi!

While rebuilding the python related packages against the Python 3.15rc2
version we found that pygattlib fails to build from source [1].

To fix it, I backported upstream commit 73a73b71: Fix build for Python
3.13 [2].

I've applied the upstream fix in the sandbox [3] to verify that it
builds successfully, please consider applying the patch to support the
upcoming 3.15 version.

Setting the severity to important for now. Once Python 3.15 is released,
it will be added to python3-defaults and this bug will become release
critical.

Happy hacking,

[1]: https://debusine.debian.net/debian/r-python-python3.15/artifact/4284740/
[2]: https://github.com/oscaracena/pygattlib/commit/73a73b71cfc139e1e0a08816fb976ff330c77ea5
[3]: https://debusine.debian.net/debian/r-python-python3.15/