Narwhals v1.12.0

Changes

🚀 Performance improvements

• perf: make to_py_scalar 3x faster when argument is str (#1276)

✨ Enhancements

• feat: support columns and select for InterchangeFrame if _df is present (#1283)
• RFC, feat: infer datetime format for pyarrow backend (#1195)
• feat: add is_pandas_index, is_modin_index, is_cudf_index, is_pandas_like_index utility functions (#1272)
• err: replace msg = "Please set allow_series=True" with msg = "Please set allow_series=True or series_only=True" (#1280)

🐞 Bug fixes

• fix: from_native was sometimes raising unnecessarily with strict=False (#1274)

📖 Documentation

• docs: Render table of contents members ordered & removed css reference (#1275)

🛠️ Other improvements

• chore: Simplify stable api docstrings (#1278)
• ci: test with python3.13 (#1094)

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