{ lib, stdenv, buildPythonPackage, dask, duckdb, fetchFromGitHub, hatchling, hypothesis, ibis-framework, packaging, pandas, polars, pyarrow-hotfix, pyarrow, pyspark, pytest-env, pytestCheckHook, rich, sqlframe, }: buildPythonPackage rec { pname = "narwhals"; version = "2.14.0"; pyproject = true; src = fetchFromGitHub { owner = "narwhals-dev"; repo = "narwhals"; tag = "v${version}"; hash = "sha256-5yynyaY5NuxSGEro4pDzFFkf0PsYArzlB23lXYmzydY="; }; build-system = [ hatchling ]; optional-dependencies = { # cudf = [ cudf ]; dask = [ dask ] ++ dask.optional-dependencies.dataframe; # modin = [ modin ]; pandas = [ pandas ]; polars = [ polars ]; pyarrow = [ pyarrow ]; pyspark = [ pyspark ]; ibis = [ ibis-framework rich packaging pyarrow-hotfix ]; sqlframe = [ sqlframe ]; }; nativeCheckInputs = [ duckdb hypothesis pytest-env pytestCheckHook ] ++ lib.concatAttrValues optional-dependencies; pythonImportsCheck = [ "narwhals" ]; disabledTests = [ # Flaky "test_rolling_var_hypothesis" # Missing file "test_pyspark_connect_deps_2517" # Timezone issue "test_to_datetime" "test_unary_two_elements" # Test requires pyspark binary "test_datetime_w_tz_pyspark" "test_convert_time_zone_to_connection_tz_pyspark" "test_replace_time_zone_to_connection_tz_pyspark" "test_lazy" # Incompatible with ibis 11 "test_unique_3069" # DuckDB 1.4.x compatibility - empty result schema handling with PyArrow "test_skew_expr" # ibis improvements cause strict XPASS failures (tests expected to fail now pass) "test_empty_scalar_reduction_with_columns" "test_collect_empty" ]; disabledTestPaths = lib.optionals (stdenv.hostPlatform.isDarwin && stdenv.hostPlatform.isx86_64) [ # Segfault in included polars/lazyframe "tests/tpch_q1_test.py" ]; pytestFlags = [ "-Wignore::DeprecationWarning" ]; meta = { description = "Lightweight and extensible compatibility layer between dataframe libraries"; homepage = "https://github.com/narwhals-dev/narwhals"; changelog = "https://github.com/narwhals-dev/narwhals/releases/tag/${src.tag}"; license = lib.licenses.mit; maintainers = with lib.maintainers; [ fab ]; }; }