Have you heard about the upcoming datetime library changes in Python 4? It’s pretty significant because it’s the first notable backward incompatible change in the next major Python version since the whole py2 to py3 transition, and it’s likely to require changes to most of the Python programs during upgrade.

Rationale

The core Python team, given how long it took to deprecate py2, wasn’t exactly happy to do such a transition, and the topic was generally controversial whenever it came up (see this thread for example). Still, they eventually had to agree that the current implementation of datetime does more damage…