narwhals 2.26.0

Narwhals v2.26.0

on Python PyPI

Changes

🚀 Performance improvements

• perf: Avoid getting columns to read dtypes, route bare selectors through simple_select (#3875)
• perf: Speedup pandas-like is_finite, sqrt, kurtosis and skew (#3874)

✨ Enhancements

• feat: Improve error message on unsupported length-changing methods (#3903)

🐞 Bug fixes

• fix(pyarrow): strip_chars with empty characters no longer strips whitespace (#3925)
• ci: fix downstream pins for pointblank (#3922)
• fix: use dtype.categories for pl.Enum in get_categories (#3924)
• fix(typing): Stableify selectors (#3904)
• fix(typing): Stableify concat with the stable frame classes (#3908)
• fix(pyarrow): shift preserves length when n exceeds the series length (#3920)
• fix(pyarrow): keep nulls through clip instead of replacing them with a bound (#3906)
• fix: Deprecate cat.get_categories and stop relying on Polars' removed method (#3902)
• fix: inplace deprecation warning from pandas in hist (#3907)
• fix(test): xfail polars v2 for is_in and __contains__ tests (#3901)
• fix(test): Fix interchange and concat tests (#3896)
• fix: str.slice(..., length=0) returns empty string on pandas and dask (#3891)

📖 Documentation

• docs: Resync documentation with implementation (#3820)
• docs: Add AGENTS.md (#3821)

🛠️ Other improvements

• chore: prek autoupdate (#3928)
• chore: prek autoupdate (#3894)
• chore(typing): Remove redundant {cast,bool,str} calls (#3905)
• test: xfail test_unique_expr for duckdb 1.6+ (#3899)
• chore: remove unnecessary import (#3881)
• refactor(typing): use closed=True in some TypedDicts (#3800)
• test: add simple test to measure Narwhals vs pandas overhead (#3873)
• chore: prek autoupdate (#3876)

Thank you to all our contributors for making this release possible!
@FBruzzesi, @heyilingran, @MarcoGorelli, @ptimizeroracle, @winklemad, @github-actions[bot], @dangotbanned, @EdAbati and ptimizeroracle