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/readability-lxml/default.nix

@@ -0,0 +1,41 @@
+{ stdenv
+, lib
+, buildPythonPackage
+, fetchFromGitHub
+, pytestCheckHook
+, chardet
+, cssselect
+, lxml
+, timeout-decorator
+}:
+
+buildPythonPackage rec {
+  pname = "readability-lxml";
+  version = "0.8.1";
+
+  src = fetchFromGitHub {
+    owner = "buriy";
+    repo = "python-readability";
+    rev = "v${version}";
+    hash = "sha256-MKdQRety24qOG9xgIdaCJ72XEImP42SlMG6tC7bwzo4=";
+  };
+
+  propagatedBuildInputs = [ chardet cssselect lxml ];
+
+  postPatch = ''
+    substituteInPlace setup.py --replace 'sys.platform == "darwin"' "False"
+  '';
+
+  checkInputs = [
+    pytestCheckHook
+    timeout-decorator
+  ];
+
+  meta = with lib; {
+    broken = stdenv.isDarwin;
+    description = "Fast python port of arc90's readability tool";
+    homepage = "https://github.com/buriy/python-readability";
+    license = licenses.apsl20;
+    maintainers = with maintainers; [ siraben ];
+  };
+}