From 563b491ce89bafaa928beba19a37f6381bfc60d0 Mon Sep 17 00:00:00 2001
From: Daiderd Jordan <daiderd@gmail.com>
Date: Tue, 12 Feb 2019 23:54:54 +0100
Subject: [PATCH] pythonPackages.tornado: fix darwin sandbox build

The tests need localhost networking.
---
 pkgs/development/python-modules/tornado/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/development/python-modules/tornado/default.nix b/pkgs/development/python-modules/tornado/default.nix
index d446d377e66f..1d8a03578cda 100644
--- a/pkgs/development/python-modules/tornado/default.nix
+++ b/pkgs/development/python-modules/tornado/default.nix
@@ -42,6 +42,8 @@ buildPythonPackage rec {
     inherit pname sha256 version;
   };
 
+  __darwinAllowLocalNetworking = true;
+
   meta = {
     description = "A web framework and asynchronous networking library";
     homepage = http://www.tornadoweb.org/;