From d78813e2ded028f2a267f5e31a76bc1de5c74061 Mon Sep 17 00:00:00 2001
From: Sigmanificient <edhyjox@gmail.com>
Date: Mon, 20 Jul 2026 23:57:37 +0200
Subject: [PATCH 1/4] python3Packages.epc: migrate to pyproject

---
 pkgs/development/python-modules/epc/default.nix | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/python-modules/epc/default.nix b/pkgs/development/python-modules/epc/default.nix
index 735c8aa1ecc6..a7318528cfc7 100644
--- a/pkgs/development/python-modules/epc/default.nix
+++ b/pkgs/development/python-modules/epc/default.nix
@@ -3,19 +3,22 @@
   buildPythonPackage,
   fetchPypi,
   sexpdata,
+  setuptools,
 }:
 
 buildPythonPackage rec {
   pname = "epc";
   version = "0.0.5";
-  format = "setuptools";
+  pyproject = true;
 
   src = fetchPypi {
     inherit pname version;
     sha256 = "a14d2ea74817955a20eb00812e3a4630a132897eb4d976420240f1152c0d7d25";
   };
 
-  propagatedBuildInputs = [ sexpdata ];
+  build-system = [ setuptools ];
+
+  dependencies = [ sexpdata ];
   doCheck = false;
 
   meta = {

From ef86ab39d3b308262ecd9d9ec6c6b63de645757a Mon Sep 17 00:00:00 2001
From: Sigmanificient <edhyjox@gmail.com>
Date: Mon, 20 Jul 2026 23:58:21 +0200
Subject: [PATCH 2/4] python3Packages.epc: use finalAttrs

---
 pkgs/development/python-modules/epc/default.nix | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/pkgs/development/python-modules/epc/default.nix b/pkgs/development/python-modules/epc/default.nix
index a7318528cfc7..97ff188a3623 100644
--- a/pkgs/development/python-modules/epc/default.nix
+++ b/pkgs/development/python-modules/epc/default.nix
@@ -6,14 +6,14 @@
   setuptools,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "epc";
   version = "0.0.5";
   pyproject = true;
 
   src = fetchPypi {
-    inherit pname version;
-    sha256 = "a14d2ea74817955a20eb00812e3a4630a132897eb4d976420240f1152c0d7d25";
+    inherit (finalAttrs) pname version;
+    hash = "sha256-oU0up0gXlVog6wCBLjpGMKEyiX602XZCAkDxFSwNfSU=";
   };
 
   build-system = [ setuptools ];
@@ -26,4 +26,4 @@ buildPythonPackage rec {
     homepage = "https://github.com/tkf/python-epc";
     license = lib.licenses.gpl3;
   };
-}
+})

From fd6b3374e8e2dd3f96f433507a91917efd8067d0 Mon Sep 17 00:00:00 2001
From: Sigmanificient <edhyjox@gmail.com>
Date: Mon, 20 Jul 2026 23:58:33 +0200
Subject: [PATCH 3/4] python3Packages.epc: clarify license

---
 pkgs/development/python-modules/epc/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/development/python-modules/epc/default.nix b/pkgs/development/python-modules/epc/default.nix
index 97ff188a3623..0c9d9c679feb 100644
--- a/pkgs/development/python-modules/epc/default.nix
+++ b/pkgs/development/python-modules/epc/default.nix
@@ -24,6 +24,6 @@ buildPythonPackage (finalAttrs: {
   meta = {
     description = "EPC (RPC stack for Emacs Lisp) implementation in Python";
     homepage = "https://github.com/tkf/python-epc";
-    license = lib.licenses.gpl3;
+    license = lib.licenses.gpl3Only;
   };
 })

From ca2027fb7561a1325dd322719d093450937d92a0 Mon Sep 17 00:00:00 2001
From: Sigmanificient <edhyjox@gmail.com>
Date: Tue, 21 Jul 2026 00:03:24 +0200
Subject: [PATCH 4/4] python3Packages.epc: enable tests

---
 pkgs/development/python-modules/epc/default.nix | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/python-modules/epc/default.nix b/pkgs/development/python-modules/epc/default.nix
index 0c9d9c679feb..3ddce46c91c8 100644
--- a/pkgs/development/python-modules/epc/default.nix
+++ b/pkgs/development/python-modules/epc/default.nix
@@ -4,6 +4,7 @@
   fetchPypi,
   sexpdata,
   setuptools,
+  pytestCheckHook,
 }:
 
 buildPythonPackage (finalAttrs: {
@@ -19,7 +20,17 @@ buildPythonPackage (finalAttrs: {
   build-system = [ setuptools ];
 
   dependencies = [ sexpdata ];
-  doCheck = false;
+
+  pythonImportsCheck = [ "epc" ];
+
+  nativeCheckInputs = [ pytestCheckHook ];
+
+  disabledTestPaths = [
+    # imports nose
+    "epc/tests/test_py2py.py"
+  ];
+
+  __darwinAllowLocalNetworking = true;
 
   meta = {
     description = "EPC (RPC stack for Emacs Lisp) implementation in Python";