From f2df4cef5cd673b578eceed1ec4d848c5f13509d Mon Sep 17 00:00:00 2001
From: Frederik Rietdijk <fridh@fridh.nl>
Date: Sun, 25 Dec 2016 16:48:14 +0100
Subject: [PATCH] pythonPackages.xgboost: only with Python 3.x

---
 pkgs/top-level/python-packages.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 0f7c4c44ff18..9af257a0088a 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -30140,6 +30140,9 @@ EOF
     propagatedBuildInputs = with self; [ scipy ];
     buildInputs = with self; [ nose ];
 
+    # Cannot be installed with Python 2.x, most likely due to the patch below.
+    disabled = !isPy3k;
+
     postPatch = ''
       cd python-package