From 4d80938179e0f3f158caa76d43a019a9b203b46c Mon Sep 17 00:00:00 2001
From: Gaetan Lepage <gaetan@glepage.com>
Date: Wed, 20 May 2026 13:05:03 +0000
Subject: [PATCH 1/2] python3Packages.sympy: build from GitHub sources, cleanup

---
 .../python-modules/sympy/default.nix          | 42 ++++++++++++++-----
 1 file changed, 31 insertions(+), 11 deletions(-)

diff --git a/pkgs/development/python-modules/sympy/default.nix b/pkgs/development/python-modules/sympy/default.nix
index ef1e4183e3077..0ec139e9514c0 100644
--- a/pkgs/development/python-modules/sympy/default.nix
+++ b/pkgs/development/python-modules/sympy/default.nix
@@ -1,30 +1,48 @@
 {
   lib,
   buildPythonPackage,
-  fetchPypi,
-  glibcLocales,
+  fetchFromGitHub,
+
+  # build-system
+  setuptools,
+
+  # dependencies
   mpmath,
 
+  # tests
+  glibcLocales,
+
   # Reverse dependency
   sage,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "sympy";
   version = "1.14.0";
-  format = "setuptools";
-
-  src = fetchPypi {
-    inherit pname version;
-    hash = "sha256-09P+jfHloLQvDnvfUFQWl9vn0jdG6JSZDAMOKwXnJRc=";
+  pyproject = true;
+  __structuredAttrs = true;
+
+  src = fetchFromGitHub {
+    owner = "sympy";
+    repo = "sympy";
+    tag = "sympy-${finalAttrs.version}";
+    hash = "sha256-aSMQ/H5agjsa+Lp7o15/irLSTLtmF/VEqMCBGbXbvmM=";
   };
 
-  nativeCheckInputs = [ glibcLocales ];
+  build-system = [
+    setuptools
+  ];
 
-  propagatedBuildInputs = [ mpmath ];
+  pythonRelaxDeps = [
+    "mpmath"
+  ];
+  dependencies = [
+    mpmath
+  ];
 
   # tests take ~1h
   doCheck = false;
+  nativeCheckInputs = [ glibcLocales ];
   pythonImportsCheck = [ "sympy" ];
 
   passthru.tests = {
@@ -35,8 +53,10 @@ buildPythonPackage rec {
     description = "Python library for symbolic mathematics";
     mainProgram = "isympy";
     homepage = "https://www.sympy.org/";
+    downloadPage = "https://github.com/sympy/sympy";
+    changelog = "https://github.com/sympy/sympy/wiki/Release-Notes-for-${finalAttrs.version}";
     license = lib.licenses.bsd3;
     maintainers = [ ];
     teams = [ lib.teams.sage ];
   };
-}
+})

From db738de1ef7bacf19d46f56b7a8a448a0a87291a Mon Sep 17 00:00:00 2001
From: Gaetan Lepage <gaetan@glepage.com>
Date: Wed, 20 May 2026 13:05:41 +0000
Subject: [PATCH 2/2] python3Packages.sympy: add GaetanLepage to maintainers

---
 pkgs/development/python-modules/sympy/default.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/python-modules/sympy/default.nix b/pkgs/development/python-modules/sympy/default.nix
index 0ec139e9514c0..575698e7a81cc 100644
--- a/pkgs/development/python-modules/sympy/default.nix
+++ b/pkgs/development/python-modules/sympy/default.nix
@@ -56,7 +56,9 @@ buildPythonPackage (finalAttrs: {
     downloadPage = "https://github.com/sympy/sympy";
     changelog = "https://github.com/sympy/sympy/wiki/Release-Notes-for-${finalAttrs.version}";
     license = lib.licenses.bsd3;
-    maintainers = [ ];
+    maintainers = with lib.maintainers; [
+      GaetanLepage
+    ];
     teams = [ lib.teams.sage ];
   };
 })