[gulbanana]

They have acknowledged it, noted the use case, and decided that they are unable to support it. Python has this in common with most other programming languages.

Providing long-term backwards compatibility with the ability to share libraries and update them system-wise is difficult and imposes very high costs on an ecosystem. Only a small number of tech stacks have ever done this (for example, C and Perl) - and not only are they so old that it wasn’t a conscious choice, they have stagnated as a result.