From 2ac0bbdae1ef9b988b826736577300de3296fbba Mon Sep 17 00:00:00 2001
From: Martin Weinelt <hexa@darmstadt.ccc.de>
Date: Wed, 12 Nov 2025 02:36:17 +0100
Subject: [PATCH] python3Packages.marshmallow-polyfield: mark broken

Not compatible with marshmallow 4.x.
---
 .../python-modules/marshmallow-polyfield/default.nix            | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/development/python-modules/marshmallow-polyfield/default.nix b/pkgs/development/python-modules/marshmallow-polyfield/default.nix
index 5230a614c6b1..b6d3df57aea0 100644
--- a/pkgs/development/python-modules/marshmallow-polyfield/default.nix
+++ b/pkgs/development/python-modules/marshmallow-polyfield/default.nix
@@ -35,6 +35,8 @@ buildPythonPackage rec {
   pythonImportsCheck = [ "marshmallow" ];
 
   meta = with lib; {
+    # https://github.com/Bachmann1234/marshmallow-polyfield/issues/45
+    broken = true;
     description = "Extension to Marshmallow to allow for polymorphic fields";
     homepage = "https://github.com/Bachmann1234/marshmallow-polyfield";
     license = licenses.asl20;