From c8df60c61e9824e3f69346fcd5e92af194093374 Mon Sep 17 00:00:00 2001
From: Gaetan Lepage <gaetan@glepage.com>
Date: Tue, 2 Sep 2025 01:27:37 +0200
Subject: [PATCH] python3Packages.chex: 0.1.90 -> 0.1.91

Diff: https://github.com/deepmind/chex/compare/v0.1.90...v0.1.91

Changelog: https://github.com/google-deepmind/chex/releases/tag/v0.1.91
---
 pkgs/development/python-modules/chex/default.nix | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/pkgs/development/python-modules/chex/default.nix b/pkgs/development/python-modules/chex/default.nix
index 8ec1a28dd608..b023b751a4cd 100644
--- a/pkgs/development/python-modules/chex/default.nix
+++ b/pkgs/development/python-modules/chex/default.nix
@@ -4,7 +4,7 @@
   fetchFromGitHub,
 
   # build-system
-  setuptools,
+  flit-core,
 
   # dependencies
   absl-py,
@@ -22,18 +22,23 @@
 
 buildPythonPackage rec {
   pname = "chex";
-  version = "0.1.90";
+  version = "0.1.91";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "deepmind";
     repo = "chex";
     tag = "v${version}";
-    hash = "sha256-nZYfkK73p3HpUOMPyqkV4YR3BDGrpdZrl36dmfZt7Bk=";
+    hash = "sha256-lJ9+kvG7dRtfDVgvkcJ9/jtnX0lMfxY4mmZ290y/74U=";
   };
 
-  build-system = [ setuptools ];
+  build-system = [
+    flit-core
+  ];
 
+  pythonRelaxDeps = [
+    "typing_extensions"
+  ];
   dependencies = [
     absl-py
     jax