uv

uv is a python package and project manager, written in Rust. It’s really fast and, from my limited usage, feels really good.

Project Workflow

To create a new project:

1. Create the directory for the project, navigate there, and initialize the project with uv init, e.g.:

mkdir my-project
cd my-project
uv init

2. uv will automatically create a venv and a uv.lock file when we run a uv command now, so run something like uv run main.py to create the venv.
3. Activate the virtual environment (in Windows, this is via something like .venv\Scripts\Activate.ps1)

Then, install packages as appropriate, via: uv add package-name, e.g. uv add polars

We can install local packages with something like: uv add --editiable path/to/my-local-package

The --editable command creates a symlink between the current project and my-local-package to automatically sync code without needing to reinstall.

Versions

uv also provides tooling for versioning

You can check the version of your project with uv version

And you can bump versions with:

uv version --bump minor

where we can use major, minor, patch, etc. to update the version