Swap pip for uv

[lmmx]

Is there an existing issue for this?

• I have searched existing issues, it hasn't been reported yet

Use case description

uv was just released (from the makers of ruff), and is substantially faster than pip, pip-tools, and virtualenv. This seems desirable to speed up serverless builds.

Proposed solution (optional)

Announcing uv: an extremely fast Python package installer and resolver, written in Rust.

uv is designed as a drop-in alternative to pip, pip-tools, and virtualenv.

With a warm cache, uv installs are near-instant. Here, it's > 75x faster than pip and pip-tools.

— Source

The “drop-in” claim seems to suggest you might be able to just change the binary i.e. re-alias pip to uv pip

[pgrzesik]

Hey @lmmx - how do you imagine support for uv on the plugin level? As the plugin uses pip that is installed locally, I think "just" aliasing on your own should be enough, but maybe I'm missing some specific use cases. Please let me know what do you think 🙇

[Zer0x00]

uv doesn't (yet) support the pip install -t flag with which you can specify a target directory.

This flag is used by this project to install the requirements into a cache directory or if you've disabled the cache to have the requirements under .serverless/requirements.

Zer0x00 ➜ /project $ uv pip install -t /project/.serverless/requirements -r /project/.serverless/requirements/requirements.txt

error: unexpected argument '-t' found

  tip: to pass '-t' as a value, use '-- -t'

Usage: uv pip install [OPTIONS] <PACKAGE|--requirement <REQUIREMENT>|--editable <EDITABLE>>

For more information, try '--help'.

[pgrzesik]

Thanks for sharing @Zer0x00 🙇 Unless there will be a very high demand for uv-specific support, I think the plugin shouldn't include anything specific for uv if the general plan for it is to be a drop-in replacement for pip with full compatibility.

If anyone is interested in having support for uv sooner, please vote on the issue with 👍 and/or write a comment below 🙇