From 9a5310e26fc1d1b354f0186736bc3a67b5e88c01 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Robert=20Sch=C3=BCtz?= <nix@dotlambda.de>
Date: Fri, 27 Mar 2026 14:59:37 -0700
Subject: [PATCH 1/2] python3Packages.mutatormath: modernize

---
 .../python-modules/mutatormath/default.nix    | 20 ++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/pkgs/development/python-modules/mutatormath/default.nix b/pkgs/development/python-modules/mutatormath/default.nix
index 3aa52ea26af1..521951e2f1f2 100644
--- a/pkgs/development/python-modules/mutatormath/default.nix
+++ b/pkgs/development/python-modules/mutatormath/default.nix
@@ -4,14 +4,14 @@
   fetchPypi,
   defcon,
   fontmath,
+  setuptools,
   unicodedata2,
-  fs,
 }:
 
 buildPythonPackage rec {
   pname = "mutatormath";
   version = "3.0.1";
-  format = "setuptools";
+  pyproject = true;
 
   src = fetchPypi {
     pname = "MutatorMath";
@@ -20,15 +20,21 @@ buildPythonPackage rec {
     extension = "zip";
   };
 
-  propagatedBuildInputs = [
+  build-system = [ setuptools ];
+
+  dependencies = [
     fontmath
     unicodedata2
     defcon
   ];
-  nativeCheckInputs = [
-    unicodedata2
-    fs
-  ];
+
+  checkPhase = ''
+    runHook preCheck
+
+    python Lib/mutatorMath/test/run.py
+
+    runHook postCheck
+  '';
 
   meta = {
     description = "Piecewise linear interpolation in multiple dimensions with multiple, arbitrarily placed, masters";

From c21eef3a32210c97e9c184b2ec63a4deb7ea1cfe Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Robert=20Sch=C3=BCtz?= <nix@dotlambda.de>
Date: Fri, 27 Mar 2026 16:02:03 -0700
Subject: [PATCH 2/2] python3Packages.mutatormath: use finalAttrs

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

diff --git a/pkgs/development/python-modules/mutatormath/default.nix b/pkgs/development/python-modules/mutatormath/default.nix
index 521951e2f1f2..fd141dcda203 100644
--- a/pkgs/development/python-modules/mutatormath/default.nix
+++ b/pkgs/development/python-modules/mutatormath/default.nix
@@ -8,14 +8,14 @@
   unicodedata2,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "mutatormath";
   version = "3.0.1";
   pyproject = true;
 
   src = fetchPypi {
     pname = "MutatorMath";
-    inherit version;
+    inherit (finalAttrs) version;
     sha256 = "0r1qq45np49x14zz1zwkaayqrn7m8dn2jlipjldg2ihnmpzw29w1";
     extension = "zip";
   };
@@ -42,4 +42,4 @@ buildPythonPackage rec {
     license = lib.licenses.bsd3;
     maintainers = [ lib.maintainers.sternenseemann ];
   };
-}
+})