uv 0.12.0

uv 0.12.0. Some interesting breaking changes in this release of uv, in particular to the default project produced by the uv init command.

uv init is the uv shortcut for creating a new project. The previous version of uv, version 0.11.x, produced this directory when you ran uv init uv-init.

Here’s what you get with uv 0.12. I have a GitHub repository that automatically snapshots the output of uv init, so you can also see the full diff:

uv init now defaults to a src/ shaped package, instead of dropping main.py in the root of the project. It also configures the uv_build backend for building wheels and .tar.gz distribution files when you run uv build. Finally, it sets up uv-init as a script alias which, when run with uv run uv-init, executes a new main() function in src/uv_init/__init__.py.

I’ve so far avoided using src layout in my own projects just out of inertia. I think it’s time I switched.

I wonder when uv will be judged ready for a 1.0 release?