uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/development/python-modules/zcs/default.nix

@@ -0,0 +1,37 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, python
+, yacs
+, boxx
+}:
+
+buildPythonPackage rec {
+  pname = "zcs";
+  version = "0.1.17";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-ZoQgAaJy3kKHLljyKA0Oo/D1kefE8X9FlsGDSNt1nPw=";
+  };
+
+  patches = [
+    ./fix-test-yaml.patch
+  ];
+
+  propagatedBuildInputs = [ yacs ];
+
+  pythonImportsCheck = [ "zcs" ];
+
+  checkInputs = [ boxx ];
+  checkPhase = ''
+    ${python.interpreter} test/test_zcs.py
+  '';
+
+  meta = with lib; {
+    description = "A flexible powerful configuration system which takes advantage of both argparse and yacs";
+    homepage = "https://github.com/DIYer22/zcs";
+    license = licenses.mit;
+    maintainers = with maintainers; [ lucasew ];
+  };
+}

pkgs/development/python-modules/zcs/fix-test-yaml.patch

@@ -0,0 +1,13 @@
+diff --git a/test/test_zcs.py b/test/test_zcs.py
+index e4981d3..893999f 100644
+--- a/test/test_zcs.py
++++ b/test/test_zcs.py
+@@ -65,7 +65,7 @@ class TestCfgNode(unittest.TestCase):
+         cfg = self.cfg.clone()
+         yamlp = pathjoin(tmpboxx(), "test.yaml")
+         cfg.dump(yamlp)
+-        cfg_dict = yaml.load(open(yamlp))
++        cfg_dict = yaml.load(open(yamlp), yaml.Loader)
+         cfgd = CfgNode(cfg_dict)
+         self.assertTrue(str(cfg.dump()) == str(cfgd.dump()))
+