Narwhals v1.1.3

Changes

✨ Enhancements

• feat: Implement n_unique for pyarrow (#556)
• feat: ExprNameNamespace (#552)
• feat: arrow unique, is_duplicated, is_unique (#565)
• feat: implement truediv for pyarrow (#564)
• feat: add __floordiv__ and __rfloordiv__ for pyarrow (#544)
• feat: arrow selectors (#562)
• feat: arrow string namespace(s) (#551)
• feat: arrow join methods (#558)

📖 Documentation

• docs: docstrings narwhalify-cation (#559)
• docs: reword "related projects" section, remove all Ibis comparisons (#563)

🛠️ Other improvements

• chore: Factor out _polars from top-level Narwhals modules (i.e.: the mother of all refactors!) (#561)
• chore: rename internal extract_native function (#560)

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