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/django-appconf/default.nix

@@ -0,0 +1,45 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, pythonOlder
+, django
+, six
+, python
+}:
+
+buildPythonPackage rec {
+  pname = "django-appconf";
+  version = "1.0.5";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.6";
+
+  src = fetchFromGitHub {
+    owner = "django-compressor";
+    repo = "django-appconf";
+    rev = "v${version}";
+    hash = "sha256-nS4Hwp/NYg1XGvZO1tiE9mzJA7WFifyvgAjyp3YpqS4=";
+  };
+
+  propagatedBuildInputs = [
+    django
+  ];
+
+  preCheck = ''
+    # prove we're running tests against installed package, not build dir
+    rm -r appconf
+  '';
+
+  checkPhase = ''
+    runHook preCheck
+    ${python.interpreter} -m django test --settings=tests.test_settings
+    runHook postCheck
+  '';
+
+  meta = with lib; {
+    description = "A helper class for handling configuration defaults of packaged apps gracefully";
+    homepage = "https://django-appconf.readthedocs.org/";
+    license = licenses.bsd2;
+    maintainers = with maintainers; [ desiderius ];
+  };
+}