From ad9a4d0d5ed5659ec186f3b08b78e40daf437721 Mon Sep 17 00:00:00 2001
From: Frederik Rietdijk <fridh@fridh.nl>
Date: Sat, 15 Jun 2019 10:07:07 +0200
Subject: [PATCH] pythonPackages.pygal: fix build

---
 pkgs/development/python-modules/pygal/default.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkgs/development/python-modules/pygal/default.nix b/pkgs/development/python-modules/pygal/default.nix
index b0d533f5d68d..a3d6f6e4c21a 100644
--- a/pkgs/development/python-modules/pygal/default.nix
+++ b/pkgs/development/python-modules/pygal/default.nix
@@ -41,6 +41,10 @@ buildPythonPackage rec {
     export LANG=en_US.UTF-8
   '';
 
+  postPatch = ''
+    substituteInPlace setup.cfg --replace "[pytest]" "[tool:pytest]"
+  '';
+
   propagatedBuildInputs = [ cairosvg tinycss cssselect ]
     ++ stdenv.lib.optionals (!isPyPy) [ lxml ];