From c173f673edff5f3825f23e75ad75b7a2d1742ba9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Robert=20Sch=C3=BCtz?= <dev@schuetz-co.de>
Date: Fri, 22 Jan 2021 19:56:12 +0100
Subject: [PATCH] pythonPackages.hbmqtt: disable on Python 3.9

See https://github.com/beerfactory/hbmqtt/issues/223.
---
 pkgs/development/python-modules/hbmqtt/default.nix | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/python-modules/hbmqtt/default.nix b/pkgs/development/python-modules/hbmqtt/default.nix
index 053e955ad8064..003805f939c63 100644
--- a/pkgs/development/python-modules/hbmqtt/default.nix
+++ b/pkgs/development/python-modules/hbmqtt/default.nix
@@ -1,11 +1,12 @@
-{ lib, stdenv, buildPythonPackage, fetchPypi, isPy3k, setuptools
+{ lib, stdenv, buildPythonPackage, fetchPypi, isPy3k, pythonAtLeast, setuptools
 , transitions, websockets, passlib, docopt, pyyaml, nose }:
 
 buildPythonPackage rec {
   pname = "hbmqtt";
   version = "0.9.6";
 
-  disabled = !isPy3k;
+  # https://github.com/beerfactory/hbmqtt/issues/223
+  disabled = !isPy3k || pythonAtLeast "3.9";
 
   src = fetchPypi {
     inherit pname version;