From 65247333822a9b0ea6e92aabad81ad0b1bef3368 Mon Sep 17 00:00:00 2001
From: Jonathan Ringer <jonringer117@gmail.com>
Date: Sat, 28 Sep 2019 21:44:23 -0700
Subject: [PATCH] pythonPackages.opt-einsum: fix build

---
 pkgs/development/python-modules/opt-einsum/default.nix | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/pkgs/development/python-modules/opt-einsum/default.nix b/pkgs/development/python-modules/opt-einsum/default.nix
index c28105d4e492..11da1ba1ea57 100644
--- a/pkgs/development/python-modules/opt-einsum/default.nix
+++ b/pkgs/development/python-modules/opt-einsum/default.nix
@@ -1,4 +1,5 @@
-{ buildPythonPackage, fetchPypi, lib, numpy, pytest, pytestpep8, pytestcov }:
+{ buildPythonPackage, fetchPypi, lib, numpy, pytest_4 }:
+
 buildPythonPackage rec {
   version = "2.3.2";
   pname = "opt_einsum";
@@ -9,9 +10,7 @@ buildPythonPackage rec {
   };
 
   checkInputs = [
-    pytest
-    pytestpep8
-    pytestcov
+    pytest_4
   ];
 
   checkPhase = ''