From a4f0c51c0c96fe6dafcc646101710abf74d497c9 Mon Sep 17 00:00:00 2001
From: Kai Wohlfahrt <kai.wohlfahrt@gmail.com>
Date: Sat, 9 Nov 2019 10:24:18 +0000
Subject: [PATCH] pytest-black: patch black dependency

This change is pending upstream in #29, but it is stale.
---
 pkgs/development/python-modules/black/default.nix   |  2 +-
 .../python-modules/pytest-black/black-version.patch | 13 +++++++++++++
 .../python-modules/pytest-black/default.nix         |  1 +
 3 files changed, 15 insertions(+), 1 deletion(-)
 create mode 100644 pkgs/development/python-modules/pytest-black/black-version.patch

diff --git a/pkgs/development/python-modules/black/default.nix b/pkgs/development/python-modules/black/default.nix
index 6a2ed87162b..00678ca420d 100644
--- a/pkgs/development/python-modules/black/default.nix
+++ b/pkgs/development/python-modules/black/default.nix
@@ -14,7 +14,7 @@ buildPythonPackage rec {
     sha256 = "0f8mr0yzj78q1dx7v6ggbgfir2wv0n5z2shfbbvfdq7910xbgvf2";
   };
 
-  buildInputs = [ setuptools_scm ];
+  nativeBuildInputs = [ setuptools_scm ];
   checkInputs =  [ pytest glibcLocales ];
 
   # Necessary for the tests to pass on Darwin with sandbox enabled.
diff --git a/pkgs/development/python-modules/pytest-black/black-version.patch b/pkgs/development/python-modules/pytest-black/black-version.patch
new file mode 100644
index 00000000000..93bb4180930
--- /dev/null
+++ b/pkgs/development/python-modules/pytest-black/black-version.patch
@@ -0,0 +1,13 @@
+diff --git a/setup.py b/setup.py
+index 5c9ce5f..84b148a 100644
+--- a/setup.py
++++ b/setup.py
+@@ -26,6 +26,6 @@ setup(
+     python_requires=">=2.7",
+     install_requires=[
+         "pytest>=3.5.0",
+-        'black==19.3b0; python_version >= "3.6"',
++        'black; python_version >= "3.6"',
+         "toml",
+     ],
+     use_scm_version=True,
\ No newline at end of file
diff --git a/pkgs/development/python-modules/pytest-black/default.nix b/pkgs/development/python-modules/pytest-black/default.nix
index 508dbdf0863..b129f9eec4b 100644
--- a/pkgs/development/python-modules/pytest-black/default.nix
+++ b/pkgs/development/python-modules/pytest-black/default.nix
@@ -14,6 +14,7 @@ buildPythonPackage rec {
     sha256 = "03gwwy1h3qnfh6vpfhgsa5ag53a9sw1g42sc2s8a2hilwb7yrfvm";
   };
 
+  patches = [ ./black-version.patch ];
   nativeBuildInputs = [ setuptools_scm ];
 
   propagatedBuildInputs = [ black pytest toml ];