From 7a4e6352ba3ae001a3b18dd752466ecbd2a65953 Mon Sep 17 00:00:00 2001
From: Harinn <prinn.dev@pm.me>
Date: Sat, 16 May 2026 21:54:04 +0700
Subject: [PATCH] python3Packages.dask-ml: fix build with pytest 9 and sklearn
 1.8

---
 .../python-modules/dask-ml/default.nix        | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/pkgs/development/python-modules/dask-ml/default.nix b/pkgs/development/python-modules/dask-ml/default.nix
index d78a16803c21..4153970a052e 100644
--- a/pkgs/development/python-modules/dask-ml/default.nix
+++ b/pkgs/development/python-modules/dask-ml/default.nix
@@ -36,6 +36,12 @@ buildPythonPackage rec {
     hash = "sha256-DHxx0LFuJmGWYuG/WGHj+a5XHAEekBmlHUUb90rl2IY=";
   };
 
+  postPatch = ''
+    substituteInPlace pyproject.toml \
+      --replace-fail 'addopts = "-rsx -v --durations=10 --color=yes"' \
+                     'addopts = ["-rsx", "-v", "--durations=10", "--color=yes"]'
+  '';
+
   build-system = [
     hatch-vcs
     hatchling
@@ -74,6 +80,10 @@ buildPythonPackage rec {
     "tests/model_selection/test_incremental.py"
     "tests/model_selection/test_incremental_warns.py"
     "tests/model_selection/test_successive_halving.py"
+
+    # MockClassifier predates sklearn 1.6 __sklearn_tags__
+    "tests/model_selection/dask_searchcv/test_model_selection.py"
+    "tests/model_selection/dask_searchcv/test_model_selection_sklearn.py"
   ];
 
   disabledTests = [
@@ -89,6 +99,28 @@ buildPythonPackage rec {
     "test_lr_score"
     "test_ok"
     "test_scoring_string"
+
+    # sklearn 1.7+: PCA / IncrementalPCA missing power_iteration_normalizer
+    "test_pca_randomized_solver"
+    "test_pca_check_projection"
+    "test_pca_inverse"
+    "test_pca_score"
+    "test_pca_score2"
+    "test_randomized_pca_check_projection"
+    "test_randomized_pca_inverse"
+    "test_pca_int_dtype_upcast_to_double"
+    "test_incremental_pca"
+    "test_incremental_pca_against_pca_iris"
+    "test_incremental_pca_against_pca_random_data"
+    "test_singular_values"
+    "test_whitening"
+
+    # sklearn 1.8 API drift in LogisticRegression/ParallelPostFit
+    "test_predict"
+    "test_multiclass"
+
+    # XPASS becomes failure under xfail_strict (now honored on pytest 9)
+    "test_soft_voting_frame"
   ];
 
   __darwinAllowLocalNetworking = true;