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/green/default.nix

@@ -0,0 +1,58 @@
+{ lib
+, buildPythonPackage
+, isPy3k
+, fetchPypi
+, django
+, colorama
+, coverage
+, unidecode
+, lxml
+}:
+
+buildPythonPackage rec {
+  pname = "green";
+  version = "3.4.1";
+  format = "setuptools";
+
+  disabled = !isPy3k;
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "5dda2d2a277012227011f8f21523d70a550ebe5d47cc890fa16b9fcd9a91da53";
+  };
+
+  patches = [
+    ./tests.patch
+  ];
+
+  postPatch = ''
+    substituteInPlace green/test/test_integration.py \
+      --subst-var-by green "$out/bin/green"
+  '';
+
+  propagatedBuildInputs = [
+    colorama
+    coverage
+    unidecode
+    lxml
+  ];
+
+  # let green run it's own test suite
+  checkPhase = ''
+    $out/bin/green -tvvv \
+      green.test.test_version \
+      green.test.test_cmdline \
+      green.test.test_command
+  '';
+
+  pythonImportsCheck = [
+    "green"
+  ];
+
+  meta = with lib; {
+    description = "Python test runner";
+    homepage = "https://github.com/CleanCut/green";
+    license = licenses.mit;
+    maintainers = with maintainers; [ ];
+  };
+}