From 71fa9158c78ca9348ec8f6bee7dbae7826ca4417 Mon Sep 17 00:00:00 2001
From: Harinn <prinn.dev@pm.me>
Date: Sat, 23 May 2026 20:27:53 +0700
Subject: [PATCH] python3Packages.pycyphal: disable doctests broken by asyncio
 task leaks on python 3.14

---
 pkgs/development/python-modules/pycyphal/default.nix | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/pkgs/development/python-modules/pycyphal/default.nix b/pkgs/development/python-modules/pycyphal/default.nix
index 8fed197d2e4d..a53a14fde62c 100644
--- a/pkgs/development/python-modules/pycyphal/default.nix
+++ b/pkgs/development/python-modules/pycyphal/default.nix
@@ -95,6 +95,13 @@ buildPythonPackage rec {
     "pycyphal/application/register/_value.py"
   ];
 
+  disabledTests = lib.optionals (pythonAtLeast "3.14") [
+    # leaked tasks from prior doctest's event loop break doctest stdout capture, causing "Got nothing" on REPL-style assertions
+    "MonotonicClusteringSynchronizer"
+    "TransferIDSynchronizer"
+    "PythonCANMedia"
+  ];
+
   pythonImportsCheck = [ "pycyphal" ];
 
   meta = {