From 50ef776bd4c50d768b9f2c30fb4dc1e84c672012 Mon Sep 17 00:00:00 2001
From: Nikolay Amiantov <ab@fmap.me>
Date: Sun, 15 Oct 2017 18:43:15 +0300
Subject: [PATCH] python.pkgs.Keras: remove default backend

Theano is discontinued. Instead of setting TensorFlow by default let the user
explicitly add preferred backend into environment.
---
 pkgs/development/python-modules/keras/default.nix | 15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

diff --git a/pkgs/development/python-modules/keras/default.nix b/pkgs/development/python-modules/keras/default.nix
index 1379d93c6dd..877fbe9470d 100644
--- a/pkgs/development/python-modules/keras/default.nix
+++ b/pkgs/development/python-modules/keras/default.nix
@@ -1,13 +1,6 @@
-{ stdenv
-, buildPythonPackage
-, fetchPypi
-, pytest
-, pytestcov
-, pytestpep8
-, pytest_xdist
-, six
-, Theano
-, pyyaml
+{ stdenv, lib, buildPythonPackage, fetchPypi
+, pytest, pytestcov, pytestpep8, pytest_xdist
+, six, numpy, scipy, pyyaml
 }:
 
 buildPythonPackage rec {
@@ -28,7 +21,7 @@ buildPythonPackage rec {
   ];
 
   propagatedBuildInputs = [
-    six Theano pyyaml
+    six pyyaml numpy scipy
   ];
 
   # Couldn't get tests working