Narwhals v1.5.3

Changes

✨ Enhancements

• feat: dask in api-completeness table (#741)
• feat: add DaskExpr.quantile (#835)
• feat: mean_horizontal (#843)
• feat: support __getitem__ with slices for columns (#839)

📖 Documentation

• docs: add narwhals-gif to README.md (#845)
• docs: Fix indentation for getitem (#844)

🛠️ Other improvements

• ci: changed release-drafter regex (#846)
• test: remove to_numpy and to_list in tests (#842)

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

Narwhals v1.5.2

Changes

🐞 Bug fixes

• fix: __array__ for pandas (pyarrow dtypes) was raising for old versions of PyArrow (#837)

Thank you to all our contributors for making this release possible!
@MarcoGorelli

Narwhals v1.5.1

Changes

✨ Enhancements

• feat: write_csv (#832)
• feat: support dtype and copy in DataFrame.array (#826)
• feat: allow for non-string columns in select for pandas backend (#828)

🐞 Bug fixes

• fix: improve validate columns (#829)

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

Narwhals v1.5.0

Changes

✨ Enhancements

• feat: add dt.to_string to DaskExpr (#796)
• feat: add DaskExpr.total_minutes, total_seconds, total_milliseconds, total_microseconds, total_nanoseconds (#811)
• feat: dask expr is_unique & is_duplicated (#803)
• feat: add is_in to DaskExpr and mark is_duplicated and is_unique as not implemented (#802)

📦 Build system

• build: Add cudf and modin to deps (#816)

🛠️ Other improvements

• test: Remove some to_numpy (#820)
• build: Add cudf and modin to deps (#816)
• test: Remove some to_list() (#812)
• test: Use compare dicts in is_duplicated_test (#809)
• ci: Modified drafter's labeller regex to match titles with uppercase (#807)
• chore: use compare_dict in series tests (#801)
• test: Improve duration_attribute_tests (#798)
• chore: stable api narwhalify de-duplication (#799)
• test: Add cudf_constructor to conftest (#797)

Thank you to all our contributors for making this release possible!
@DeaMariaLeon, @FBruzzesi, @MarcoGorelli, @benrutter, @lucianosrp, @luke396 and @thomasjpfan

Narwhals v1.4.2

Changes

• [pre-commit.ci] pre-commit autoupdate (#308)

✨ Enhancements

• feat: add diff() method to Dask backend (#793)
• feat: add dask Expr.null_count (#792)

🐞 Bug fixes

• fix: cuDF compat (#794)

📖 Documentation

• docs: add Narwhals.dependencies to API reference (#791)

Thank you to all our contributors for making this release possible!
@MarcoGorelli, @anopsy, @pre-commit-ci, @pre-commit-ci[bot] and @raisadz

Narwhals v1.4.1

Changes

✨ Enhancements

• feat: add narwhals.new_series (#787)
• feat: Support Arrow PyCapsule Interface for export (#786)
• feat: improve typing for to_pandas / to_numpy / to_arrow (#783)
• feat: extend dataframe drop method (#773)

🛠️ Other improvements

• chore: import overhaul (#788)
• chore: rename _native_dataframe to _native_frame (#785)
• chore: rename internal dtype functions (#780)

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

Narwhals v1.4.0

Changes

🚀 Performance improvements

• perf: remove some lambdas from _dask backend (#765)

✨ Enhancements

• feat: allow from_dict to not have native_namespace arg if all inputs are already narwhals Series (#760)
• feat: extend dataframe drop_nulls method (#779)
• feat: implement LazyFrame.head for Dask (plus: run tpc-h q2 query with Dask present) (#768)
• feat: add str.replace and str.replace_all (#750)
• feat: dask lazyframe remaining methods (#778)
• feat: dask sum_horizontal (#775)
• feat: dask namespace lit method (#772)
• feat: DaskSelectorNamespace (#771)
• feat: dataframe to_arrow method (#770)
• feat: series to_arrow method (#769)
• feat: dask expr is_first|last_distinct methods (#764)
• feat: dask expr __invert__, is_null, n_unique methods (#763)
• feat: dask expr len method (#762)
• feat: Series.pipe and Expr.pipe (#582)

🐞 Bug fixes

• fix: empty with_columns not working for pandas backend (#757)

📖 Documentation

• docs: add Altair to "used by" section (#776)
• docs: include "downloads per month" in readme (#774)
• docs: run tpch q1 with more libraries (#759)
• docs: use animals instead of cars in example (#758)
• docs: patch Series.cat page (#755)

🛠️ Other improvements

• chore: simplify Expr.clip (#777)
• chore: tests series_only refactor (#766)

Thank you to all our contributors for making this release possible!
@FBruzzesi, @MarcoGorelli, @lucianosrp and @muddi900

Narwhals v1.3.0

Changes

🚀 Performance improvements

• perf: keep nw.len totally lazy for dask (#749)

✨ Enhancements

• feat: Added Expr.any and Expr.all to Dask (#748)
• feat: arrow __mod__ method (#618)
• feat: allow tpc-h q1 to be run with Dask as backend (#747)
• feat: add NotImplementedError error for index changing methods Dask (#744)
• feat: Added Expr.abs to Dask (#728)
• feat: add Dask Expr.count (#731)
• feat: dask expr name namespace (#735)
• feat: add date to datetime namespace (#713)
• feat: dask expr dunder methods (#740)

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

Narwhals v1.2.0

Changes

• Feat: Series.shift Pyarrow Backend Implementation (#590)
• move over dask dt attributes tests (#704)

🚀 Performance improvements

• perf: only use as_py for pyarrow when necessary (before pyarrow 13) (#724)

✨ Enhancements

• feat: arrow and dask expr clip method (#729)
• feat: add dask Expr.std (#734)
• feat: support reductions in lazyframe.select for Dask (#723)
• feat: DaskLazyFrame unique method (#726)
• feat: DaskLazyFrame join and sort, DaskNamespace all (#725)
• feat: add group_by to dask (#718)
• feat: add series and expr clip method (#701)
• feat: Add Expr.round to Dask (#709)
• feat: add strip_chars to string namespace (#715)
• feat: ArrowGroupBy.__iter__ method (#717)
• feat: arrow expr over method (#721)
• feat: dask with_row_index and rename (#692)
• feat: dask equality and inequality operators (#708)
• feat: add round to Arrow (#696)
• feat: dask any_horizontal and generalize all_horizontal (#693)
• feat: Dask frame drop method (#699)
• feat: dask schema and collect_schema (#688)
• feat: add dask Expr.max and test (#691)
• feat: add dask Expr.min and test (#690)

🐞 Bug fixes

• patch: pandas-like and pyarrow scalar reduction fix (#716)

📖 Documentation

• docs: how it works bulletpoint indentation (#719)
• docs: Fix how-it-works, add favicon+logo (#710)
• docs: correction of how_it_works.md (#707)
• docs: Contributing guide correction (#706)
• docs: fix todo, avoid lazyframe collect_schema warning (#687)
• docs: explain translation from narwhals api to native api (#684)

🛠️ Other improvements

• ci: fix import error from dask test (#737)
• ci: fix ci from pytest importerror (#736)
• test: improve coverage for from_native (dask) (#733)
• test: toggle coverage for dask group_by (#732)
• chore: Factor all remaining tests out of test_common.py (#720)
• chore: remove dask_test completely (#705)
• chore: moving most dask tests over to the main test suite (#703)
• test: mark failing dask tests, add dask to constructor (#697)

Thank you to all our contributors for making this release possible!
@DeaMariaLeon, @FBruzzesi, @MarcoGorelli, @aidoskanapyanov, @aivanoved, @amol-, @anopsy, @condekind, @lucianosrp, @mfonekpo and @mistShard

Narwhals v1.1.9

Changes

• Feat: Dask filter and and method added (#676)
• bug: fix iter_rows inconsistency in pandas (#671)

🚀 Performance improvements

• perf: some comprehensions over loops (#679)

✨ Enhancements

• feat: add fill_null to DaskExpr (#685)
• feat: add drop_nulls for dask (#675)
• feat: dask columns property & filter method (#670)
• feat: dask select method (#667)
• feat: add year, month, day, hour, minute, second, millisecond, micros… (#666)
• feat: add to_lowercase, to_uppercase, to_datetime for dask (#665)
• feat: add ends_with, contains, slice for dask (#664)
• feat: Added Dask Expr.sum (#662)

🐞 Bug fixes

• fix: dask expr dt.nanosecond implementation (#678)

📖 Documentation

• doc: Made changes to the file explaining the UserWarning error while using pandas `group_by's (#677)

🛠️ Other improvements

• tests: add pytest-env to dev requirements (#683)
• ci: adopt uv (#682)
• chore: factor system_info tests outside test_common (#680)
• test: xfail uppecase for dask and pyarrow 11.0.0 (#672)
• chore: enable more lazy tests (#663)

Thank you to all our contributors for making this release possible!
@DeaMariaLeon, @EdAbati, @FBruzzesi, @MarcoGorelli, @aidoskanapyanov, @benrutter, @lucianosrp, @mistShard and @montanarograziano