From b9ce08f7f1220cb895f4c3a09da357bfb31146d3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fabian=20M=C3=B6ller?= <fabianm88@gmail.com>
Date: Fri, 13 Sep 2019 17:43:21 +0200
Subject: [PATCH] pythonPackages.h11: fix darwin build

---
 pkgs/development/python-modules/h11/default.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/development/python-modules/h11/default.nix b/pkgs/development/python-modules/h11/default.nix
index f77c267d792c..361ac0c59d13 100644
--- a/pkgs/development/python-modules/h11/default.nix
+++ b/pkgs/development/python-modules/h11/default.nix
@@ -23,6 +23,9 @@ buildPythonPackage rec {
     py.test
   '';
 
+  # Some of the tests use localhost networking.
+  __darwinAllowLocalNetworking = true;
+
   meta = with lib; {
     description = "Pure-Python, bring-your-own-I/O implementation of HTTP/1.1";
     license = licenses.mit;