The same code builds with Python 3.13 on Windows with amd64 and on ubunto-latest and macos-latest. The project does not explicitly use Py_UNICODE but does use array.array ('B') and I see from #5982 ...

First off, thanks for creating this library. There is an issue with file encoding that occurs when running on linux (or at least on debian). The package installs fine - both using git and pypi -- but ...