Hi!

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

The error is:

AttributeError: module 'glob' has no attribute 'glob1'. Did you mean '.glob' instead of '.glob1'?

This happens because glob1 is deprecated. The solution is to replace
with glob(GLOB, root_dir=DIR)

I've applied this fix in the sandbox [2] 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 becomes the
default version this bug will become release critical.

Happy hacking,

[1]: https://debusine.debian.net/debian/r-python-python3.15/artifact/4749290/
[2]: https://debusine.debian.net/debian/r-python-python3.15/