From c48313910ec1d3b2a68c73ae5aefbd7add7060a4 Mon Sep 17 00:00:00 2001
From: Sarah Clark <seclark@nextquestion.net>
Date: Sun, 19 Jul 2026 13:20:15 -0700
Subject: [PATCH] python3Packages.mmengine: pin setuptools at 80 to work around
 pkg_resources error

---
 pkgs/development/python-modules/mmengine/default.nix | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/python-modules/mmengine/default.nix b/pkgs/development/python-modules/mmengine/default.nix
index b02514a51b51..0f3c77ebbb89 100644
--- a/pkgs/development/python-modules/mmengine/default.nix
+++ b/pkgs/development/python-modules/mmengine/default.nix
@@ -6,7 +6,7 @@
   fetchpatch,
 
   # build-system
-  setuptools,
+  setuptools_80,
 
   # dependencies
   addict,
@@ -71,7 +71,8 @@ buildPythonPackage (finalAttrs: {
         --replace-fail "import numpy.compat" ""
     '';
 
-  build-system = [ setuptools ];
+  # https://github.com/open-mmlab/mmengine/issues/1616
+  build-system = [ setuptools_80 ];
 
   dependencies = [
     addict