From 786d31333e6170e67ebd88f90727b795b749e315 Mon Sep 17 00:00:00 2001
From: Sigmanificient <edhyjox@gmail.com>
Date: Mon, 20 Jul 2026 01:29:56 +0200
Subject: [PATCH 1/3] python3Packages.datadiff: migrate to pyproject

---
 pkgs/development/python-modules/datadiff/default.nix | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/python-modules/datadiff/default.nix b/pkgs/development/python-modules/datadiff/default.nix
index 9fe82d8d38ad..9204d31b8cce 100644
--- a/pkgs/development/python-modules/datadiff/default.nix
+++ b/pkgs/development/python-modules/datadiff/default.nix
@@ -2,18 +2,21 @@
   lib,
   buildPythonPackage,
   fetchPypi,
+  setuptools,
 }:
 
 buildPythonPackage rec {
   pname = "datadiff";
   version = "2.2.0";
-  format = "setuptools";
+  pyproject = true;
 
   src = fetchPypi {
     inherit pname version;
     hash = "sha256-fOcN/uqMM/HYjbRrDv/ukFzDa023Ofa7BwqC3omB0ws=";
   };
 
+  build-system = [ setuptools ];
+
   # Tests are not part of the PyPI releases
   doCheck = false;
 

From 88e634779efa527dcf649a71cc2a1f04d890958b Mon Sep 17 00:00:00 2001
From: Sigmanificient <edhyjox@gmail.com>
Date: Mon, 20 Jul 2026 01:30:21 +0200
Subject: [PATCH 2/3] python3Packages.datadiff: use finalAttrs

---
 pkgs/development/python-modules/datadiff/default.nix | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/pkgs/development/python-modules/datadiff/default.nix b/pkgs/development/python-modules/datadiff/default.nix
index 9204d31b8cce..e9f552b738ed 100644
--- a/pkgs/development/python-modules/datadiff/default.nix
+++ b/pkgs/development/python-modules/datadiff/default.nix
@@ -5,13 +5,13 @@
   setuptools,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "datadiff";
   version = "2.2.0";
   pyproject = true;
 
   src = fetchPypi {
-    inherit pname version;
+    inherit (finalAttrs) pname version;
     hash = "sha256-fOcN/uqMM/HYjbRrDv/ukFzDa023Ofa7BwqC3omB0ws=";
   };
 
@@ -28,4 +28,4 @@ buildPythonPackage rec {
     license = lib.licenses.asl20;
     maintainers = [ ];
   };
-}
+})

From 2e3b53b3a8ca1b8b8dcb3fe2d2ecbc9fac838e53 Mon Sep 17 00:00:00 2001
From: Sigmanificient <edhyjox@gmail.com>
Date: Mon, 20 Jul 2026 01:32:40 +0200
Subject: [PATCH 3/3] python3Packages.datadiff: enable tests

---
 .../development/python-modules/datadiff/default.nix | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/python-modules/datadiff/default.nix b/pkgs/development/python-modules/datadiff/default.nix
index e9f552b738ed..5440f6ee8e34 100644
--- a/pkgs/development/python-modules/datadiff/default.nix
+++ b/pkgs/development/python-modules/datadiff/default.nix
@@ -3,6 +3,8 @@
   buildPythonPackage,
   fetchPypi,
   setuptools,
+  pytestCheckHook,
+  six,
 }:
 
 buildPythonPackage (finalAttrs: {
@@ -17,11 +19,18 @@ buildPythonPackage (finalAttrs: {
 
   build-system = [ setuptools ];
 
-  # Tests are not part of the PyPI releases
-  doCheck = false;
+  nativeCheckInputs = [
+    pytestCheckHook
+    six
+  ];
 
   pythonImportsCheck = [ "datadiff" ];
 
+  disabledTests = [
+    # slice is an hashable type in recent python versions
+    "test_unhashable_type"
+  ];
+
   meta = {
     description = "Library to provide human-readable diffs of Python data structures";
     homepage = "https://sourceforge.net/projects/datadiff/";