PyPI · pypi.org

narwhals

Py Custom Build Backend: Non-standard PEP 517 build-backend `uv_build` — runs custom code at install time.

Why PkgRadar flagged 2.22.1

Severity	Signal	Evidence
medium	Py Custom Build Backend	Non-standard PEP 517 build-backend `uv_build` — runs custom code at install time. · pyproject.toml

Scanned versions

Version	Verdict	Score	Scanned (UTC)
`2.22.1`	Review	7	2026-06-05
`2.22.0`	Review	7	2026-06-01

Block this in CI

PkgRadar gates narwhals (and every other dependency) before it merges. One line in your pipeline:

pkgradar gate --ecosystem pypi narwhals==2.22.1