I suspect, that lots of people hyping uv didn't have any proper reproducible project setups beforehand and didn't have to find solutions to that before uv. If they had, they would know about Poetry and how to use it.

I am of the same opinion, that uv didn't actually change all that much, if you have a sane project setup. I don't do anything with it, that I didn't do before with Poetry and before that with Pipenv. What I need is a way of installing dependencies, checked against a lock file, reliably. Poetry does that. If uv disappeared today, I would go back to Poetry and wouldn't miss all that much.

But there are the people who want to write one-off scripts with loosely defined dependencies inlined into the scripts. I don't do that. I would just copy my Makefile and pyproject.toml file from another project and adjust it and then run the script just as well with locked dependencies. Why do anything less. If I want to be really sloppy, I can just pip install.