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/djangorestframework-guardian/default.nix

@@ -0,0 +1,41 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, django-guardian
+, djangorestframework
+}:
+
+buildPythonPackage rec {
+  pname = "djangorestframework-guardian";
+  version = "0.3.0";
+
+  src = fetchFromGitHub {
+    owner = "rpkilby";
+    repo = "django-rest-framework-guardian";
+    rev = version;
+    sha256 = "sha256-jl/VEl1pUHU8J1d5ZQSGJweNJayIGw1iVAmwID85fqw=";
+  };
+
+  postPatch = ''
+    chmod +x manage.py
+    patchShebangs manage.py
+  '';
+
+  propagatedBuildInputs = [
+    django-guardian
+    djangorestframework
+  ];
+
+  checkPhase = ''
+    ./manage.py test
+  '';
+
+  pythonImportsCheck = [ "rest_framework_guardian" ];
+
+  meta = with lib; {
+    description = "Django-guardian support for Django REST Framework";
+    homepage = "https://github.com/rpkilby/django-rest-framework-guardian";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ SuperSandro2000 ];
+  };
+}