From 8af15af15cab4bc6bdda1d272e008a818616c1e2 Mon Sep 17 00:00:00 2001
From: Mario Rodas <marsam@users.noreply.github.com>
Date: Wed, 5 Dec 2018 19:37:06 -0500
Subject: [PATCH] pythonPackages.flake8-future-import: fix build on Python 3.7

---
 .../python-modules/flake8-future-import/default.nix    | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/python-modules/flake8-future-import/default.nix b/pkgs/development/python-modules/flake8-future-import/default.nix
index eaed804245f..c9cf3fe4ca8 100644
--- a/pkgs/development/python-modules/flake8-future-import/default.nix
+++ b/pkgs/development/python-modules/flake8-future-import/default.nix
@@ -1,4 +1,4 @@
-{ lib, fetchFromGitHub, buildPythonPackage, flake8, six }:
+{ lib, fetchFromGitHub, buildPythonPackage, fetchpatch, flake8, six }:
 
 buildPythonPackage rec {
   pname = "flake8-future-import";
@@ -12,6 +12,14 @@ buildPythonPackage rec {
     sha256 = "00fpxa6g8cabybnciwnpsbg60zhgydc966jgwyyggw1pcg0frdqr";
   };
 
+  patches = [
+    # Add Python 3.7 support. Remove with the next release
+    (fetchpatch {
+      url = https://github.com/xZise/flake8-future-import/commit/cace194a44d3b95c9c1ed96640bae49183acca04.patch;
+      sha256 = "17pkqnh035j5s5c53afs8bk49bq7lnmdwqp5k7izx7sw80z73p9r";
+    })
+  ];
+
   propagatedBuildInputs = [ flake8 six ];
 
   meta = {