From e0f988fc4648c308465ac60f39c364bfd3034f23 Mon Sep 17 00:00:00 2001
From: Lancelot SIX <lsix@lancelotsix.com>
Date: Wed, 12 Jul 2017 12:27:15 +0200
Subject: [PATCH] pythonPackages.kombu: fix tests for python3.6

---
 pkgs/top-level/python-packages.nix | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 0726bfc6f715..09cced825141 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -12581,6 +12581,14 @@ in {
       sha256 = "18hiricdnbnlz6hx3hbaa4dni6npv8rbid4dhf7k02k16qm6zz6h";
     };
 
+    # Backport fix for python-3.6 from master (see issue https://github.com/celery/kombu/issues/675)
+    # TODO remove at next update
+    patches = [ (pkgs.fetchpatch {
+      url = "https://github.com/celery/kombu/commit/dc3fceff59d79ceac3f8f11a5d697beabb4b7a7f.patch";
+      sha256 = "0s6gsihzjvmpffc7xrrcijw00r56yb74jg0sbjgng2v1324z1da9";
+      name = "don-t-modify-dict-size-while-iterating-over-it";
+    }) ];
+
     buildInputs = with self; [ pytest case pytz ];
 
     propagatedBuildInputs = with self; [ amqp ];