1 files changed, 16 insertions, 1 deletions
diff --git a/nixpkgs/pkgs/development/python-modules/opt-einsum/default.nix b/nixpkgs/pkgs/development/python-modules/opt-einsum/default.nix
index fd51ead5a0e3..e943d67c7baa 100644
--- a/nixpkgs/pkgs/development/python-modules/opt-einsum/default.nix
+++ b/nixpkgs/pkgs/development/python-modules/opt-einsum/default.nix
@@ -1,6 +1,8 @@
 { lib
 , buildPythonPackage
+, fetchpatch
 , fetchPypi
+, setuptools
 , numpy
 , pytestCheckHook
 , pythonOlder
@@ -9,7 +11,7 @@
 buildPythonPackage rec {
   version = "3.3.0";
   pname = "opt-einsum";
-  format = "setuptools";
+  pyproject = true;
 
   disabled = pythonOlder "3.6";
 
@@ -19,6 +21,19 @@ buildPythonPackage rec {
     hash = "sha256-WfZHX3e7w33PfNdIUZwOxgci6R5jyhFOaIIcDFSkZUk=";
   };
 
+  patches = [
+    # https://github.com/dgasmith/opt_einsum/pull/208
+    (fetchpatch {
+      name = "python312-compatibility.patch";
+      url = "https://github.com/dgasmith/opt_einsum/commit/0beacf96923bbb2dd1939a9c59398a38ce7a11b1.patch";
+      hash = "sha256-dmmEzhy17huclo1wOubpBUDc2L7vqEU5b/6a5loM47A=";
+    })
+  ];
+
+  nativeBuildInputs = [
+    setuptools
+  ];
+
   propagatedBuildInputs = [
     numpy
   ];