Hello, > python3-backports-std is a backport of functionality that is included > in Python 3.14 > It fails to build with python3-defaults in experimental which will be > uploaded to unstable soon to start the Python 3.14 transition.
Here is upstream discussion of this issue. > Support for Python 3.14 #50 > https://github.com/Rogdham/backports.zstd/issues/50 -- YOKOTA

