From d1f4fdeaaa89fd2f9fad5da461b39a7a7f29a89f Mon Sep 17 00:00:00 2001
From: "R. Ryantm" <ryantm-bot@ryantm.com>
Date: Thu, 25 Dec 2025 04:45:17 +0000
Subject: [PATCH 1/2] python3Packages.cexprtk: 0.4.1 -> 0.4.2

---
 pkgs/development/python-modules/cexprtk/default.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/python-modules/cexprtk/default.nix b/pkgs/development/python-modules/cexprtk/default.nix
index dbe641016cb2..560475ebb3be 100644
--- a/pkgs/development/python-modules/cexprtk/default.nix
+++ b/pkgs/development/python-modules/cexprtk/default.nix
@@ -7,12 +7,12 @@
 
 buildPythonPackage rec {
   pname = "cexprtk";
-  version = "0.4.1";
+  version = "0.4.2";
   format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-QhftIybufVPO/YbLFycR4qYEAtQMcRPP5jKS6o6dFZg=";
+    hash = "sha256-sBLkHco0u2iEsdUxmPW2ONP/Fe08p0fOVJLmzz3t4os=";
   };
 
   nativeCheckInputs = [ pytestCheckHook ];

From aba8168d592e03d26557da18b012afdf0a951c28 Mon Sep 17 00:00:00 2001
From: Fabian Affolter <mail@fabian-affolter.ch>
Date: Thu, 25 Dec 2025 10:27:03 +0100
Subject: [PATCH 2/2] python313Packages.cexprtk: modernize

---
 pkgs/development/python-modules/cexprtk/default.nix | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/python-modules/cexprtk/default.nix b/pkgs/development/python-modules/cexprtk/default.nix
index 560475ebb3be..f2109813affd 100644
--- a/pkgs/development/python-modules/cexprtk/default.nix
+++ b/pkgs/development/python-modules/cexprtk/default.nix
@@ -3,18 +3,21 @@
   fetchPypi,
   buildPythonPackage,
   pytestCheckHook,
+  setuptools,
 }:
 
 buildPythonPackage rec {
   pname = "cexprtk";
   version = "0.4.2";
-  format = "setuptools";
+  pyproject = true;
 
   src = fetchPypi {
     inherit pname version;
     hash = "sha256-sBLkHco0u2iEsdUxmPW2ONP/Fe08p0fOVJLmzz3t4os=";
   };
 
+  build-system = [ setuptools ];
+
   nativeCheckInputs = [ pytestCheckHook ];
 
   pythonImportsCheck = [ "cexprtk" ];
@@ -22,6 +25,7 @@ buildPythonPackage rec {
   meta = {
     description = "Mathematical expression parser, cython wrapper";
     homepage = "https://github.com/mjdrushton/cexprtk";
+    changelog = "https://github.com/mjdrushton/cexprtk/blob/${version}/CHANGES.md";
     license = lib.licenses.cpl10;
     maintainers = with lib.maintainers; [ onny ];
   };