[BRLTTY] Support multiple Python versions on Windows

[Leonard de Ruijter]

Hello all, particularly Samuel,


The NVDA project is currently in the process of upgrading Python to 
version 3.11. I recall that when we updated to Python 3.7 3 years ago, I 
had to create a brlapi python extension manually, as the python version 
bundled in the Windows packages didn't match Python 3.7.

Python has something like the stable application binary Interface (ABI), 
see https://docs.python.org/3.11/c-api/stable.html . This can be used by 
enabling the limited API.

I wonder, has this ever been considered? If not, could it be considered 
to create a brlapi python package that uses the limited API, preferably 
using an API version that is equal to the minimum Python version that is 
still in maintenance (currently 3.8)? That would ensure that you'd be 
able to use a brlapi python extension with multiple python versions.


Regards,

Leonard