From 2343ecee633d3f6b0493c86174b79cfdf6516cb6 Mon Sep 17 00:00:00 2001
From: SkohTV <contact@skoh.dev>
Date: Mon, 25 May 2026 11:11:37 -0400
Subject: [PATCH 1/3] python3Packages.visitor: migrate to pyproject

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

diff --git a/pkgs/development/python-modules/visitor/default.nix b/pkgs/development/python-modules/visitor/default.nix
index 727703ca1556..c37c3f8abccc 100644
--- a/pkgs/development/python-modules/visitor/default.nix
+++ b/pkgs/development/python-modules/visitor/default.nix
@@ -2,18 +2,21 @@
   lib,
   buildPythonPackage,
   fetchPypi,
+  setuptools,
 }:
 
 buildPythonPackage rec {
   pname = "visitor";
   version = "0.1.3";
-  format = "setuptools";
+  pyproject = true;
 
   src = fetchPypi {
     inherit pname version;
     sha256 = "02j87v93c50gz68gbgclmbqjcwcr7g7zgvk7c6y4x1mnn81pjwrc";
   };
 
+  build-system = [ setuptools ];
+
   meta = {
     homepage = "https://github.com/mbr/visitor";
     description = "Tiny pythonic visitor implementation";

From 7743496162bdab14176ddd76d95f91acb000ae33 Mon Sep 17 00:00:00 2001
From: SkohTV <contact@skoh.dev>
Date: Mon, 25 May 2026 11:13:03 -0400
Subject: [PATCH 2/3] python3Packages.visitor: modernize

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

diff --git a/pkgs/development/python-modules/visitor/default.nix b/pkgs/development/python-modules/visitor/default.nix
index c37c3f8abccc..584d9d9a558f 100644
--- a/pkgs/development/python-modules/visitor/default.nix
+++ b/pkgs/development/python-modules/visitor/default.nix
@@ -5,13 +5,13 @@
   setuptools,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "visitor";
   version = "0.1.3";
   pyproject = true;
 
   src = fetchPypi {
-    inherit pname version;
+    inherit (finalAttrs) pname version;
     sha256 = "02j87v93c50gz68gbgclmbqjcwcr7g7zgvk7c6y4x1mnn81pjwrc";
   };
 
@@ -23,4 +23,4 @@ buildPythonPackage rec {
     license = lib.licenses.mit;
     maintainers = [ ];
   };
-}
+})

From b50c676c1b29976141476a8b0dff4e5b081b7a2b Mon Sep 17 00:00:00 2001
From: SkohTV <contact@skoh.dev>
Date: Mon, 25 May 2026 11:18:18 -0400
Subject: [PATCH 3/3] python3Packages.visitor: add pythonImportsCheck

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

diff --git a/pkgs/development/python-modules/visitor/default.nix b/pkgs/development/python-modules/visitor/default.nix
index 584d9d9a558f..0b27081fc870 100644
--- a/pkgs/development/python-modules/visitor/default.nix
+++ b/pkgs/development/python-modules/visitor/default.nix
@@ -17,6 +17,8 @@ buildPythonPackage (finalAttrs: {
 
   build-system = [ setuptools ];
 
+  pythonImportsCheck = [ "visitor" ];
+
   meta = {
     homepage = "https://github.com/mbr/visitor";
     description = "Tiny pythonic visitor implementation";