From 06c9d4d95c1ef5e0fb19bf346ee297b94b32b666 Mon Sep 17 00:00:00 2001
From: Bill Huang <bill.huang2001@gmail.com>
Date: Tue, 1 Nov 2022 17:36:26 +0800
Subject: [PATCH] gym: 0.21.0 -> 0.26.2

add importlib-metadata as dependency when python < 3.10
---
 .../python-modules/gym-notices/default.nix    | 24 +++++++++++++++++++
 .../python-modules/gym/default.nix            | 12 ++++++----
 pkgs/top-level/python-packages.nix            |  2 ++
 3 files changed, 34 insertions(+), 4 deletions(-)
 create mode 100644 pkgs/development/python-modules/gym-notices/default.nix

diff --git a/pkgs/development/python-modules/gym-notices/default.nix b/pkgs/development/python-modules/gym-notices/default.nix
new file mode 100644
index 000000000000..1cd974976e4a
--- /dev/null
+++ b/pkgs/development/python-modules/gym-notices/default.nix
@@ -0,0 +1,24 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+}:
+
+buildPythonPackage rec {
+  pname = "gym-notices";
+  version = "0.0.8";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-rSXiAEh8r6NpcoYl/gZOiK2hNGYYUmECZZtGQPK0uRE=";
+  };
+
+  pythonImportsCheck = [ "gym_notices" ];
+
+  meta = with lib; {
+    description = "Notices for Python package Gym";
+    homepage = "https://github.com/Farama-Foundation/gym-notices";
+    license = licenses.mit;
+    maintainers = with maintainers; [ billhuang ];
+  };
+}
+
diff --git a/pkgs/development/python-modules/gym/default.nix b/pkgs/development/python-modules/gym/default.nix
index 1616343f8b43..44fbdc040123 100644
--- a/pkgs/development/python-modules/gym/default.nix
+++ b/pkgs/development/python-modules/gym/default.nix
@@ -3,23 +3,27 @@
 , fetchFromGitHub
 , numpy
 , cloudpickle
+, gym-notices
+, importlib-metadata
+, pythonOlder
 }:
 
 buildPythonPackage rec {
   pname = "gym";
-  version = "0.21.0";
+  version = "0.26.2";
 
   src = fetchFromGitHub {
     owner = "openai";
     repo = pname;
-    rev = "v${version}";
-    sha256 = "12b545xz0r2g4z5r7f8amxl7nm0lqymkzwcwhg1bni9h0sxwpv6c";
+    rev = "${version}";
+    sha256 = "sha256-uJgm8l1SxIRC5PV6BIH/ht/1ucGT5UaUhkFMdusejgA=";
   };
 
   propagatedBuildInputs = [
     cloudpickle
     numpy
-  ];
+    gym-notices
+  ] ++ lib.optionals (pythonOlder "3.10") [ importlib-metadata ];
 
   # The test needs MuJoCo that is not free library.
   doCheck = false;
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 112bd45d1b6d..c978b80214e9 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -4053,6 +4053,8 @@ self: super: with self; {
 
   gym = callPackage ../development/python-modules/gym { };
 
+  gym-notices = callPackage ../development/python-modules/gym-notices { };
+
   gyp = callPackage ../development/python-modules/gyp { };
 
   h11 = callPackage ../development/python-modules/h11 { };