From bf9cc225e9ac5d12a65edaefc30a862d4a443fbe Mon Sep 17 00:00:00 2001
From: Frederik Rietdijk <fridh@fridh.nl>
Date: Sat, 29 Aug 2020 14:33:34 +0200
Subject: [PATCH] luigi: use tornado_5

---
 .../networking/cluster/luigi/default.nix          | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/pkgs/applications/networking/cluster/luigi/default.nix b/pkgs/applications/networking/cluster/luigi/default.nix
index f69082bff3a..98b71cfe112 100644
--- a/pkgs/applications/networking/cluster/luigi/default.nix
+++ b/pkgs/applications/networking/cluster/luigi/default.nix
@@ -1,15 +1,22 @@
-{ lib, python3Packages }:
+{ lib, python3 }:
 
-python3Packages.buildPythonApplication rec {
+let
+  python = python3.override {
+    self = python;
+    packageOverrides = self: super: {
+      tornado = super.tornado_5;
+    };
+  };
+in with python.pkgs; buildPythonApplication rec {
   pname = "luigi";
   version = "3.0.1";
 
-  src = python3Packages.fetchPypi {
+  src = fetchPypi {
     inherit pname version;
     sha256 = "02c480f5pjgqsvqnkaw7f6n4nhdspmhq5w7lw8sgg2v3jghg8n7i";
   };
 
-  propagatedBuildInputs = with python3Packages; [ dateutil tornado_4 python-daemon boto3 ];
+  propagatedBuildInputs = [ dateutil tornado_5 python-daemon boto3 ];
 
   # Requires tox, hadoop, and google cloud
   doCheck = false;