From ed898bf0f408be6afc100ebdaf98db11908a7c26 Mon Sep 17 00:00:00 2001
From: "Wael M. Nasreddine" <wael.nasreddine@gmail.com>
Date: Thu, 8 Aug 2019 17:45:34 -0700
Subject: [PATCH] dask: disable the package for Python older than 3.5

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

diff --git a/pkgs/development/python-modules/dask/default.nix b/pkgs/development/python-modules/dask/default.nix
index cd38c8f137c5..5ae749f93736 100644
--- a/pkgs/development/python-modules/dask/default.nix
+++ b/pkgs/development/python-modules/dask/default.nix
@@ -2,6 +2,7 @@
 , buildPythonPackage
 , fetchPypi
 , pytest
+, pythonOlder
 , cloudpickle
 , numpy
 , toolz
@@ -14,6 +15,8 @@ buildPythonPackage rec {
   pname = "dask";
   version = "1.2.2";
 
+  disabled = pythonOlder "3.5";
+
   src = fetchPypi {
     inherit pname version;
     sha256 = "5e7876bae2a01b355d1969b73aeafa23310febd8c353163910b73e93dc7e492c";