From 7c2d6388022cd53622e3bb558c0c8706f7564279 Mon Sep 17 00:00:00 2001
From: Eamonn Coughlan <eamonn+nix@rxd4.com>
Date: Wed, 12 Dec 2018 11:52:34 +0100
Subject: [PATCH] ipykernel: fix permissions when installing kernels

---
 pkgs/development/python-modules/ipykernel/default.nix | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/pkgs/development/python-modules/ipykernel/default.nix b/pkgs/development/python-modules/ipykernel/default.nix
index 43b1c9fd0349..b4daf5a6ecbb 100644
--- a/pkgs/development/python-modules/ipykernel/default.nix
+++ b/pkgs/development/python-modules/ipykernel/default.nix
@@ -1,6 +1,7 @@
 { lib
 , buildPythonPackage
 , fetchPypi
+, fetchpatch
 , ipython
 , jupyter_client
 , traitlets
@@ -23,6 +24,14 @@ buildPythonPackage rec {
   checkInputs = [ pytest nose ];
   propagatedBuildInputs = [ ipython jupyter_client traitlets tornado ];
 
+  # https://github.com/ipython/ipykernel/pull/377
+  patches = [
+    (fetchpatch {
+      url = "https://github.com/ipython/ipykernel/commit/a3bf849dbd368a1826deb9dfc94c2bd3e5ed04fe.patch";
+      sha256 = "1yhpwqixlf98a3n620z92mfips3riw6psijqnc5jgs2p58fgs2yc";
+    })
+  ];
+
   checkPhase = ''
     HOME=$(mktemp -d) pytest ipykernel
   '';