Last month, I wrote Python’s UV tool is actually pretty good about Astral’s new Python package installer and resolver uv, and this is a follow-up post.
Since last month, I have added uv to over a dozen projects, and I recently learned that you could skip the venv step for projects that use containers or CI where the environment is already isolated.
I mistakenly thought uv required a virtual environment (aka venv), but Josh Thomas recently pointed out that it’s unnecessary.
I have a pip-tools wrapper thing that now optionally uses uv instead. Aside from doing the pip-tools things faster, the main advantage I’ve found, and what really motivated me to support and recommend uv with it, is that uv creates new venvs MUCH faster than python’s venv module, which is really annoyingly slow for that operation.