I don't think we'll ever see proper packaging integrated into the language. Our best hope is for the ecosystem to coalesce around a particular tool, or at least have standards that all the major players follow. The latter is kind of happening slowly over time.

Poetry is adopted by less than 0.5% of Python repos on GitHub. Because you can’t install PyTorch with it in a way that works for more than 1 platform, and sometimes in general, its adoption among new and sophisticated projects is trending towards zero.

I have no beef with Poetry but having taken huge brain damage dealing with Python packaging as a USP for end users, the maintainers have decided to not participate in the most exciting things in the ecosystem to the detriment of the otherwise excellent and thoughtfully designed project. Ultimately people who are offering a packaging alternative must deliver a “universal install wizard” solution that includes Windows, which interests few people to work on.