[lights0123]

Python removes features all the time in 3.x releases. For example, I was not a fan of the distutils removal in 3.12 which broke many legacy but otherwise functional packages. Deprecated functions and classes are also removed from packages regularly.

They do publish removal plans years in advance, e.g. see Python 3.17's plans: https://docs.python.org/3/deprecations/pending-removal-in-3....