narwhals 2.6.0

Narwhals v2.6.0

on Python PyPI

Changes

✨ Enhancements

• enh: support skew with over (#3161)
• fix: Align division by zero behavior across all backends (#2761)
• enh: support n_unique with over across all backends (#3159)
• enh: support non-elementwise (but length-preserving) keys in group-by (#3157)

🐞 Bug fixes

• fix: preserve nulls in cumulative functions (#3156)

🛠️ Other improvements

• chore(typing): pyright ignore pl.UInt128 (#3144)
• ci: ban click 8.3.0 (#3146)
• chore: Support @requires.backend_version in namespaces (#3127)
• ci: Temporary pin duckdb for ibis (#3136)
• test: fix version_test failing on old venv (#3134)
• test(typing): fix pickle_test using Sequence (#3135)
• refactor: Simplify maybe_convert_dtypes (#3141)
• chore: Add CompliantFrame._with_native (#3140)
• refactor(typing): Remove now-unused isinstance_or_issubclass overloads (#3139)
• chore: Upgrade ruff to v0.13.0 and fix related issues in tests/ (#3126)
• tests: more modern polars tests (#3087)

Thank you to all our contributors for making this release possible!
@FBruzzesi, @MarcoGorelli, @dangotbanned and @skritsotalakis