From 9e95109b89fa575e3c6f187aab10b250dc59e330 Mon Sep 17 00:00:00 2001
From: Timo Kaufmann <timokau@zoho.com>
Date: Mon, 4 Mar 2019 14:08:55 +0100
Subject: [PATCH] pythonPackages.tensorflow-tensorboard: fix python2 build

Fix build after https://github.com/NixOS/nixpkgs/pull/56669. Update the
python2 hash and re-add the python2 `futures` dependency. Not sure if
there was a reason for it to be removed in the first place.
---
 .../tensorflow-tensorboard/default.nix               | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/pkgs/development/python-modules/tensorflow-tensorboard/default.nix b/pkgs/development/python-modules/tensorflow-tensorboard/default.nix
index b196fc8edce6..7840e6de0092 100644
--- a/pkgs/development/python-modules/tensorflow-tensorboard/default.nix
+++ b/pkgs/development/python-modules/tensorflow-tensorboard/default.nix
@@ -26,12 +26,16 @@ buildPythonPackage rec {
     sha256 = "19ixs811ndx8qh72dif0ywjss3rv7pf1khsgg6rvfjb9nw8wgjc2";
   } else {
     python = "py2";
-    sha256 = "1mkyb5gn952i4s7fmc9ay4yh74ysrqbiqna6dl1qmahjpbaavbf5";
+    sha256 = "0qpv6jsf6jjvdl95qvarn006kfj5a99mq925d73xg4af50ssvkrf";
   }));
 
-  propagatedBuildInputs = [ numpy werkzeug protobuf
-                            markdown
-                            grpcio absl-py ]; # ++ lib.optional (!isPy3k) futures;
+  propagatedBuildInputs = [
+    numpy
+    werkzeug
+    protobuf
+    markdown
+    grpcio absl-py
+  ] ++ lib.optional (!isPy3k) futures;
 
   meta = with stdenv.lib; {
     description = "TensorFlow's Visualization Toolkit";