# Python package manager uv is now available for builds with zero configuration

By Steven Van · 2025-10-03

Vercel's Python builds now default to the Rust-based uv package manager, cutting install times 30-65% with no config changes.

uv, a Python package manager written in Rust, is now the default during the install step for all Python builds on [Vercel](<https://creatorstoolbox.com/tools/vercel>). Vercel says the switch makes builds 30-65% faster.

Dependency support also widens: alongside requirements.txt and Pipfile, projects can now declare dependencies with a uv.lock or pyproject.toml file. The change applies automatically, with [no configuration needed](<https://vercel.com/docs/functions/runtimes/python>).

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[Original source](<https://vercel.com/docs/functions/runtimes/python>)

[Read Python package manager uv is now available for builds with zero configuration on Creators Toolbox](<https://creatorstoolbox.com/blog/vercel-python-package-manager-uv-is-now-available-for-builds-with-zero-config>)

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Canonical source: https://creatorstoolbox.com/blog/vercel-python-package-manager-uv-is-now-available-for-builds-with-zero-config